Mercurial > octave
changeset 1432:4c3d46b02f99
[project @ 1995-09-19 07:20:14 by jwe]
Initial revision
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/COPYING Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,257 @@ + + GNU GENERAL PUBLIC LICENSE + Version 1, February 1989 + + Copyright (C) 1989 Free Software Foundation, Inc. + 675 Mass Ave, Cambridge, MA 02139, USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + +The Free Software Foundation has exempted Bash from the requirement of +Paragraph 2c of the General Public License. This is to say, there is +no requirement for Bash to print a notice when it is started +interactively in the usual way. We made this exception because users +and standards expect shells not to print such messages. This +exception applies to any program that serves as a shell and that is +based primarily on Bash as opposed to other GNU software. + + Preamble + + The license agreements of most software companies try to keep users +at the mercy of those companies. 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It is safest to +attach them to the start of each source file to most effectively convey +the exclusion of warranty; and each file should have at least the +"copyright" line and a pointer to where the full notice is found. + + <one line to give the program's name and a brief idea of what it does.> + Copyright (C) 19yy <name of author> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 1, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) 19xx name of author + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the +appropriate parts of the General Public License. Of course, the +commands you use may be called something other than `show w' and `show +c'; they could even be mouse-clicks or menu items--whatever suits your +program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the + program `Gnomovision' (a program to direct compilers to make passes + at assemblers) written by James Hacker. + + <signature of Ty Coon>, 1 April 1989 + Ty Coon, President of Vice + +That's all there is to it!
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/ChangeLog Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,403 @@ +Tue Mar 23 14:36:51 1993 Brian Fox (bfox@eos.crseo.ucsb.edu) + + * readline.c (rl_copy): Changed name to rl_copy_text. + +Mon Mar 22 19:16:05 1993 Brian Fox (bfox@eos.crseo.ucsb.edu) + + * dispose_cmd.c, several other files. Declare dispose_xxx () as + "void". + + * builtins/hashcom.h: Make declarations of hashed_filenames be + "extern" to keep the SGI compiler happy. + + * readline.c (rl_initialize_everything): Assign values to + out_stream and in_stream immediately, since + output_character_function () can be called before + readline_internal () is called. + +Tue Dec 8 09:30:56 1992 Brian Fox (bfox@cubit) + + * readline.c (rl_init_terminal) Set PC from BC, not from *buffer. + +Mon Nov 30 09:35:47 1992 Brian Fox (bfox@cubit) + + * readline.c (invoking_keyseqs_in_map, rl_parse_and_bind) Allow + backslash to quote characters, such as backslash, double quote, + and space. Backslash quotes all character indiscriminately. + + * funmap.c (vi_keymap) Fix type in "vi-replace" declaration. + +Fri Nov 20 10:55:05 1992 Brian Fox (bfox@cubit) + + * readline.c (init_terminal_io, rl_prep_terminal): FINALLY! + Declare and use termcap variable `ospeed' when setting up terminal + parameters. + +Thu Oct 8 08:53:07 1992 Brian J. Fox (bfox@helios) + + * Makefile, this directory: Include (as links to the canonical + sources), tilde.c, tilde.h, posixstat.h and xmalloc.c. + +Tue Sep 29 13:07:21 1992 Brian J. Fox (bfox@helios) + + * readline.c (init_terminal_io) Don't set arrow keys if the key + sequences that represent them are already set. + + * readline.c (rl_function_of_keyseq) New function returns the first + function (or macro) found while searching a key sequence. + +Mon Sep 28 00:34:04 1992 Brian J. Fox (bfox@helios) + + * readline.c (LibraryVersion) New static char * contains current + version number. Version is at 2.0. + + * readline.c (rl_complete_internal): Incorporated clean changes + from gilmore (gnu@cygnus.com) to support quoted substrings within + completion functions. + + * readline.c (many locations) Added support for the _GO32_, + whatever that is. Patches supplied by Cygnus, typed in by hand, + with cleanups. + +Sun Aug 16 12:46:24 1992 Brian Fox (bfox@cubit) + + * readline.c (init_terminal_io): Find out the values of the keypad + arrows and bind them to appropriate RL functions if present. + +Mon Aug 10 18:13:24 1992 Brian Fox (bfox@cubit) + + * history.c (stifle_history): A negative argument to stifle + becomes zero. + +Tue Jul 28 09:28:41 1992 Brian Fox (bfox@cubit) + + * readline.c (rl_variable_bind): New local structure describes + booleans by name and address; code in rl_variable_bind () looks at + structure to set simple variables. + + * parens.c (rl_insert_close): New variable rl_blink_matching_paren + is non-zero if we want to blink the matching open when a close is + inserted. If FD_SET is defined, rl_blink_matching_paren defaults + to 1, else 0. If FD_SET is not defined, and + rl_blink_matching_paren is non-zero, the close character(s) are/is + simply inserted. + +Wed Jul 22 20:03:59 1992 Brian Fox (bfox@cubit) + + * history.c, readline.c, vi_mode.c: Cause the functions strchr () + and strrchr () to be used instead of index () and rindex () + throughout the source. + +Mon Jul 13 11:34:07 1992 Brian Fox (bfox@cubit) + + * readline.c: (rl_variable_bind) New variable "meta-flag" if "on" + means force the use of the 8th bit as Meta bit. Internal variable + is called meta_flag. + +Thu Jul 9 10:37:56 1992 Brian Fox (bfox@cubit) + + * history.c (get_history_event) Change INDEX to LOCAL_INDEX. If + compiling for the shell, allow shell metacharacters to separate + history tokens as they would for shell tokens. + +Sat Jul 4 19:29:12 1992 Brian Fox (bfox@cubit) + + * vi_keymap.c: According to Posix, TAB self-inserts instead of + doing completion. + + * vi_mode.c: (rl_vi_yank_arg) Enter VI insert mode after yanking + an arg from the previous line. + + * search.c: New file takes over vi style searching and implements + non-incremental searching the history. + + Makefile: Add search.c and search.o. + + funmap.c: Add names for non-incremental-forward-search-history and + non-incremental-reverse-search-history. + + readline.h: Add extern definitions for non-incremental searching. + + vi_mode.c: Remove old search code; add calls to code in search.c. + +Fri Jul 3 10:36:33 1992 Brian Fox (bfox@cubit) + + * readline.c (rl_delete_horizontal_space); New function deletes + all whitespace surrounding point. + + funmap.c: Add "delete-horizontal-space". + emacs_keymap.c: Put rl_delete_horizontal_space () on M-\. + + * readline.c (rl_set_signals, rl_clear_signals); New function + rl_set_sighandler () is either defined in a Posix way (if + HAVE_POSIX_SIGNALS is defined) or in a BSD way. Function is + called from rl_set_signals () and rl_clear_signals (). + +Fri May 8 12:50:15 1992 Brian Fox (bfox@cubit) + + * readline.c: (readline_default_bindings) Do comparisons with + _POSIX_VDISABLE casted to `unsigned char'. Change tty characters + to be unsigned char. + +Thu Apr 30 12:36:35 1992 Brian Fox (bfox@cubit) + + * readline.c: (rl_getc) Handle "read would block" error on + non-blocking IO streams. + + * readline.c: (rl_signal_handler): Unblock only the signal that we + have caught, not all signals. + +Sun Feb 23 03:33:09 1992 Brian Fox (bfox at gnuwest.fsf.org) + + * readline.c: Many functions. Use only the macros META_CHAR and + UNMETA to deal with meta characters. Prior to this, we used + numeric values and tests. + + * readline.c (rl_complete_internal) Report exactly the number of + possible completions, not the number + 1. + + * vi_mode.c (rl_do_move) Do not change the cursor position when + using `cw' or `cW'. + + * vi_mode.c (rl_vi_complete) Enter insert mode after completing + with `*' or `\'. + +Fri Feb 21 05:58:18 1992 Brian Fox (bfox at gnuwest.fsf.org) + + * readline.c (rl_dispatch) Increment rl_key_sequence_length for + meta characters that map onto ESC map. + +Mon Feb 10 01:41:35 1992 Brian Fox (bfox at gnuwest.fsf.org) + + * history.c (history_do_write) Build a buffer of all of the lines + to write and write them in one fell swoop (lower overhead than + calling write () for each line). Suggested by Peter Ho. + + * readline.c: Include hbullx20 as well as hpux for determining + USGr3ness. + + * readline.c (rl_unix_word_rubout) As per the "Now REMEMBER" + comment, pass arguments to rl_kill_text () in the correct order to + preserve prepending and appending of killed text. + + * readline.c (rl_search_history) malloc (), realloc (), and free + () SEARCH_STRING so that there are no static limits on searching. + + * vi_mode.c (rl_vi_subst) Don't forget to end the undo group. + +Fri Jan 31 14:51:02 1992 Brian Fox (bfox at gnuwest.fsf.org) + + * readline.c (rl_signal_handler): Zero the current history entry's + pointer after freeing the undo_list when SIGINT received. + Reformat a couple of functions. + +Sat Jan 25 13:47:35 1992 Brian Fox (bfox at bears) + + * readline.c (parser_if): free () TNAME after use. + +Tue Jan 21 01:01:35 1992 Brian Fox (bfox at gnuwest.fsf.org) + + * readline.c (rl_redisplay) and (rl_character_len): Display + Control characters as "^c" and Meta characters as "\234", instead + of "C-C" and "M-C". + +Sun Dec 29 10:59:00 1991 Brian Fox (bfox at gnuwest.fsf.org) + + * readline.c (init_terminal_io) Default to environment variables + LINES and COLUMNS before termcap entry values. If all else fails, + then assume 80x24 terminal. + +Sat Dec 28 16:33:11 1991 Brian Fox (bfox at gnuwest.fsf.org) + + * readline.c: If this machine is USG and it is hpux, then define + USGr3. + + * history.c: Cosmetic fixes. + +Thu Nov 21 00:10:12 1991 Brian Fox (bfox at gnuwest.fsf.org) + + * vi_mode.c: (rl_do_move) Place cursor at end of line, never at + next to last character. + +Thu Nov 14 05:08:01 1991 Brian Fox (bfox at gnuwest.fsf.org) + + * history.c (get_history_event) Non-anchored searches can have a + return index of greater than zero from get_history_event (). + +Fri Nov 1 07:02:13 1991 Brian Fox (bfox at gnuwest.fsf.org) + + * readline.c (rl_translate_keyseq) Make C-? translate to RUBOUT + unconditionally. + +Mon Oct 28 11:34:52 1991 Brian Fox (bfox at gnuwest.fsf.org) + + * readline.c; Use Posix directory routines and macros. + + * funmap.c; Add entry for call-last-kbd-macro. + + * readline.c (rl_prep_term); Use system EOF character on POSIX + systems also. + +Thu Oct 3 16:19:53 1991 Brian Fox (bfox at gnuwest.fsf.org) + + * readline.c; Make a distinction between having a TERMIOS tty + driver, and having POSIX signal handling. You might one without + the other. New defines used HAVE_POSIX_SIGNALS, and + TERMIOS_TTY_DRIVER. + +Tue Jul 30 22:37:26 1991 Brian Fox (bfox at gnuwest.fsf.org) + + * readline.c: rl_getc () If a call to read () returns without an + error, but with zero characters, the file is empty, so return EOF. + +Thu Jul 11 20:58:38 1991 Brian Fox (bfox at gnuwest.fsf.org) + + * readline.c: (rl_get_next_history, rl_get_previous_history) + Reallocate the buffer space if the line being moved to is longer + the the current space allocated. Amazing that no one has found + this bug until now. + +Sun Jul 7 02:37:05 1991 Brian Fox (bfox at gnuwest.fsf.org) + + * readline.c:(rl_parse_and_bind) Allow leading whitespace. + Make sure TERMIO and TERMIOS systems treat CR and NL + disctinctly. + +Tue Jun 25 04:09:27 1991 Brian Fox (bfox at gnuwest.fsf.org) + + * readline.c: Rework parsing conditionals to pay attention to the + prior states of the conditional stack. This makes $if statements + work correctly. + +Mon Jun 24 20:45:59 1991 Brian Fox (bfox at gnuwest.fsf.org) + + * readline.c: support for displaying key binding information + includes the functions rl_list_funmap_names (), + invoking_keyseqs_in_map (), rl_invoking_keyseqs (), + rl_dump_functions (), and rl_function_dumper (). + + funmap.c: support for same includes rl_funmap_names (). + + readline.c, funmap.c: no longer define STATIC_MALLOC. However, + update both version of xrealloc () to handle a null pointer. + +Thu Apr 25 12:03:49 1991 Brian Fox (bfox at gnuwest.fsf.org) + + * vi_mode.c (rl_vi_fword, fWord, etc. All functions use + the macro `isident()'. Fixed movement bug which prevents + continious movement through the text. + +Fri Jul 27 16:47:01 1990 Brian Fox (bfox at gnuwest.fsf.org) + + * readline.c (parser_if) Allow "$if term=foo" construct. + +Wed May 23 16:10:33 1990 Brian Fox (bfox at gnuwest.fsf.org) + + * readline.c (rl_dispatch) Correctly remember the last command + executed. Fixed typo in username_completion_function (). + +Mon Apr 9 19:55:48 1990 Brian Fox (bfox at gnuwest.fsf.org) + + * readline.c: username_completion_function (); For text passed in + with a leading `~', remember that this could be a filename (after + it is completed). + +Thu Apr 5 13:44:24 1990 Brian Fox (bfox at gnuwest.fsf.org) + + * readline.c: rl_search_history (): Correctly handle case of an + unfound search string, but a graceful exit (as with ESC). + + * readline.c: rl_restart_output (); The Apollo passes the address + of the file descriptor to TIOCSTART, not the descriptor itself. + +Tue Mar 20 05:38:55 1990 Brian Fox (bfox at gnuwest.fsf.org) + + * readline.c: rl_complete (); second call in a row causes possible + completions to be listed. + + * readline.c: rl_redisplay (), added prompt_this_line variable + which is the first character character following \n in prompt. + +Sun Mar 11 04:32:03 1990 Brian Fox (bfox at gnuwest.fsf.org) + + * Signals are now supposedly handled inside of SYSV compilation. + +Wed Jan 17 19:24:09 1990 Brian Fox (bfox at sbphy.ucsb.edu) + + * history.c: history_expand (); fixed overwriting memory error, + added needed argument to call to get_history_event (). + +Thu Jan 11 10:54:04 1990 Brian Fox (bfox at sbphy.ucsb.edu) + + * readline.c: added mark_modified_lines to control the + display of an asterisk on modified history lines. Also + added a user variable called mark-modified-lines to the + `set' command. + +Thu Jan 4 10:38:05 1990 Brian Fox (bfox at sbphy.ucsb.edu) + + * readline.c: start_insert (). Only use IC if we don't have an im + capability. + +Fri Sep 8 09:00:45 1989 Brian Fox (bfox at aurel) + + * readline.c: rl_prep_terminal (). Only turn on 8th bit + as meta-bit iff the terminal is not using parity. + +Sun Sep 3 08:57:40 1989 Brian Fox (bfox at aurel) + + * readline.c: start_insert (). Uses multiple + insertion call in cases where that makes sense. + + rl_insert (). Read type-ahead buffer for additional + keys that are bound to rl_insert, and insert them + all at once. Make insertion of single keys given + with an argument much more efficient. + +Tue Aug 8 18:13:57 1989 Brian Fox (bfox at aurel) + + * readline.c: Changed handling of EOF. readline () returns + (char *)EOF or consed string. The EOF character is read from the + tty, or if the tty doesn't have one, defaults to C-d. + + * readline.c: Added support for event driven programs. + rl_event_hook is the address of a function you want called + while Readline is waiting for input. + + * readline.c: Cleanup time. Functions without type declarations + do not use return with a value. + + * history.c: history_expand () has new variable which is the + characters to ignore immediately following history_expansion_char. + +Sun Jul 16 08:14:00 1989 Brian Fox (bfox at aurel) + + * rl_prep_terminal () + BSD version turns off C-s, C-q, C-y, C-v. + + * readline.c -- rl_prep_terminal () + SYSV version hacks readline_echoing_p. + BSD version turns on passing of the 8th bit for the duration + of reading the line. + +Tue Jul 11 06:25:01 1989 Brian Fox (bfox at aurel) + + * readline.c: new variable rl_tilde_expander. + If non-null, this contains the address of a function to call if + the standard meaning for expanding a tilde fails. The function is + called with the text sans tilde (as in "foo"), and returns a + malloc()'ed string which is the expansion, or a NULL pointer if + there is no expansion. + + * readline.h - new file chardefs.h + Separates things that only readline.c needs from the standard + header file publishing interesting things about readline. + + * readline.c: + readline_default_bindings () now looks at terminal chararacters + and binds those as well. + +Wed Jun 28 20:20:51 1989 Brian Fox (bfox at aurel) + + * Made readline and history into independent libraries. +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/README Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,6 @@ +This is the distribution of the Gnu Readline library. See the file +STANDALONE for a description of the #defines that can be passed via +the makefile to build readline on different systems. + +The file rlconf.h contains defines that enable and disable certain +readline features.
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/STANDALONE Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,31 @@ +This is a description of C preprocessor defines that readline accepts. +Most are passed in from the parent `make'; e.g. from the bash source +directory. + +NO_SYS_FILE <sys/file.h> is not present +HAVE_UNISTD_H <unistd.h> exists +HAVE_STDLIB_H <stdlib.h> exists +HAVE_VARARGS_H <varargs.h> exists and is usable +HAVE_STRING_H <string.h> exists +HAVE_ALLOCA_H <alloca.h> exists and is needed for alloca() +HAVE_ALLOCA alloca(3) or a define for it exists +PRAGMA_ALLOCA use of alloca() requires a #pragma, as in AIX 3.x +VOID_SIGHANDLER signal handlers are void functions +HAVE_DIRENT_H <dirent.h> exists and is usable +HAVE_SYS_PTEM_H <sys/ptem.h> exists +HAVE_SYS_PTE_H <sys/pte.h> exists +HAVE_SYS_STREAM_H <sys/stream.h> exists + +System-specific options: + +GWINSZ_IN_SYS_IOCTL need to include <sys/ioctl.h> for TIOCGWINSZ +HAVE_GETPW_DECLS the getpw* functions are declared in <pwd.h> and cannot + be redeclared without compiler errors +HAVE_STRCASECMP the strcasecmp and strncasecmp functions are available + +USG Running a variant of System V +USGr3 Running System V.3 +XENIX_22 Xenix 2.2 +Linux Linux +CRAY running a recent version of Cray UNICOS +SunOS4 Running SunOS 4.x
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/ansi_stdlib.h Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,41 @@ +/* ansi_stdlib.h -- An ANSI Standard stdlib.h. */ +/* A minimal stdlib.h containing extern declarations for those functions + that bash uses. */ + +/* Copyright (C) 1993 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash is free software; you can redistribute it and/or modify it under + the terms of the GNU General Public License as published by the Free + Software Foundation; either version 2, or (at your option) any later + version. + + Bash is distributed in the hope that it will be useful, but WITHOUT ANY + WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + for more details. + + You should have received a copy of the GNU General Public License along + with Bash; see the file COPYING. If not, write to the Free Software + Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#if !defined (_STDLIB_H_) +#define _STDLIB_H_ 1 + +/* String conversion functions. */ +extern int atoi (); +extern long int atol (); + +/* Memory allocation functions. */ +extern char *malloc (); +extern char *realloc (); +extern void free (); + +/* Other miscellaneous functions. */ +extern void abort (); +extern void exit (); +extern char *getenv (); +extern void qsort (); + +#endif /* _STDLIB_H */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/bind.c Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,1487 @@ +/* bind.c -- key binding and startup file support for the readline library. */ + +/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc. + + This file is part of the GNU Readline Library, a library for + reading lines of text with interactive input and history editing. + + The GNU Readline Library is free software; you can redistribute it + and/or modify it under the terms of the GNU General Public License + as published by the Free Software Foundation; either version 1, or + (at your option) any later version. + + The GNU Readline Library is distributed in the hope that it will be + useful, but WITHOUT ANY WARRANTY; without even the implied warranty + of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + The GNU General Public License is often shipped with GNU software, and + is generally kept in a file called COPYING or LICENSE. If you do not + have a copy of the license, write to the Free Software Foundation, + 675 Mass Ave, Cambridge, MA 02139, USA. */ +#define READLINE_LIBRARY + +#include <stdio.h> +#include <sys/types.h> +#include <fcntl.h> +#if !defined (NO_SYS_FILE) +# include <sys/file.h> +#endif /* !NO_SYS_FILE */ +#include <signal.h> + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif /* HAVE_UNISTD_H */ + +#if defined (HAVE_STDLIB_H) +# include <stdlib.h> +#else +# include "ansi_stdlib.h" +#endif /* HAVE_STDLIB_H */ + +#include <errno.h> +/* Not all systems declare ERRNO in errno.h... and some systems #define it! */ +#if !defined (errno) +extern int errno; +#endif /* !errno */ + +#include "posixstat.h" + +/* System-specific feature definitions and include files. */ +#include "rldefs.h" + +/* Some standard library routines. */ +#include "readline.h" +#include "history.h" + +#if !defined (strchr) && !defined (__STDC__) +extern char *strchr (), *strrchr (); +#endif /* !strchr && !__STDC__ */ + +extern int _rl_horizontal_scroll_mode; +extern int _rl_mark_modified_lines; +extern int _rl_bell_preference; +extern int _rl_meta_flag; +extern int _rl_convert_meta_chars_to_ascii; +extern int _rl_output_meta_chars; +extern int _rl_complete_show_all; +#if defined (PAREN_MATCHING) +extern int rl_blink_matching_paren; +#endif /* PAREN_MATCHING */ +#if defined (VISIBLE_STATS) +extern int rl_visible_stats; +#endif /* VISIBLE_STATS */ +extern int rl_complete_with_tilde_expansion; +extern int rl_completion_query_items; +#if defined (VI_MODE) +extern char *rl_vi_comment_begin; +#endif + +extern int rl_explicit_arg; +extern int rl_editing_mode; +extern unsigned short _rl_parsing_conditionalized_out; +extern Keymap _rl_keymap; + +extern char *possible_control_prefixes[], *possible_meta_prefixes[]; + +extern char **rl_funmap_names (); + +/* Forward declarations */ +void rl_set_keymap_from_edit_mode (); + +static int glean_key_from_name (); + +#if defined (HAVE_STRCASECMP) +#define stricmp strcasecmp +#define strnicmp strncasecmp +#else +static int stricmp (), strnicmp (); +#endif + +#if defined (STATIC_MALLOC) +static char *xmalloc (), *xrealloc (); +#else +extern char *xmalloc (), *xrealloc (); +#endif /* STATIC_MALLOC */ + +/* **************************************************************** */ +/* */ +/* Binding keys */ +/* */ +/* **************************************************************** */ + +/* rl_add_defun (char *name, Function *function, int key) + Add NAME to the list of named functions. Make FUNCTION be the function + that gets called. If KEY is not -1, then bind it. */ +rl_add_defun (name, function, key) + char *name; + Function *function; + int key; +{ + if (key != -1) + rl_bind_key (key, function); + rl_add_funmap_entry (name, function); + return 0; +} + +/* Bind KEY to FUNCTION. Returns non-zero if KEY is out of range. */ +int +rl_bind_key (key, function) + int key; + Function *function; +{ + if (key < 0) + return (key); + + if (META_CHAR (key) && _rl_convert_meta_chars_to_ascii) + { + if (_rl_keymap[ESC].type == ISKMAP) + { + Keymap escmap; + + escmap = FUNCTION_TO_KEYMAP (_rl_keymap, ESC); + key = UNMETA (key); + escmap[key].type = ISFUNC; + escmap[key].function = function; + return (0); + } + return (key); + } + + _rl_keymap[key].type = ISFUNC; + _rl_keymap[key].function = function; + return (0); +} + +/* Bind KEY to FUNCTION in MAP. Returns non-zero in case of invalid + KEY. */ +int +rl_bind_key_in_map (key, function, map) + int key; + Function *function; + Keymap map; +{ + int result; + Keymap oldmap = _rl_keymap; + + _rl_keymap = map; + result = rl_bind_key (key, function); + _rl_keymap = oldmap; + return (result); +} + +/* Make KEY do nothing in the currently selected keymap. + Returns non-zero in case of error. */ +int +rl_unbind_key (key) + int key; +{ + return (rl_bind_key (key, (Function *)NULL)); +} + +/* Make KEY do nothing in MAP. + Returns non-zero in case of error. */ +int +rl_unbind_key_in_map (key, map) + int key; + Keymap map; +{ + return (rl_bind_key_in_map (key, (Function *)NULL, map)); +} + +/* Bind the key sequence represented by the string KEYSEQ to + FUNCTION. This makes new keymaps as necessary. The initial + place to do bindings is in MAP. */ +rl_set_key (keyseq, function, map) + char *keyseq; + Function *function; + Keymap map; +{ + return (rl_generic_bind (ISFUNC, keyseq, function, map)); +} + +/* Bind the key sequence represented by the string KEYSEQ to + the string of characters MACRO. This makes new keymaps as + necessary. The initial place to do bindings is in MAP. */ +rl_macro_bind (keyseq, macro, map) + char *keyseq, *macro; + Keymap map; +{ + char *macro_keys; + int macro_keys_len; + + macro_keys = (char *)xmalloc ((2 * strlen (macro)) + 1); + + if (rl_translate_keyseq (macro, macro_keys, ¯o_keys_len)) + { + free (macro_keys); + return -1; + } + rl_generic_bind (ISMACR, keyseq, macro_keys, map); + return 0; +} + +/* Bind the key sequence represented by the string KEYSEQ to + the arbitrary pointer DATA. TYPE says what kind of data is + pointed to by DATA, right now this can be a function (ISFUNC), + a macro (ISMACR), or a keymap (ISKMAP). This makes new keymaps + as necessary. The initial place to do bindings is in MAP. */ +rl_generic_bind (type, keyseq, data, map) + int type; + char *keyseq, *data; + Keymap map; +{ + char *keys; + int keys_len; + register int i; + + /* If no keys to bind to, exit right away. */ + if (!keyseq || !*keyseq) + { + if (type == ISMACR) + free (data); + return -1; + } + + keys = xmalloc (1 + (2 * strlen (keyseq))); + + /* Translate the ASCII representation of KEYSEQ into an array of + characters. Stuff the characters into KEYS, and the length of + KEYS into KEYS_LEN. */ + if (rl_translate_keyseq (keyseq, keys, &keys_len)) + { + free (keys); + return -1; + } + + /* Bind keys, making new keymaps as necessary. */ + for (i = 0; i < keys_len; i++) + { + int ic = (int) ((unsigned char)keys[i]); + + if (_rl_convert_meta_chars_to_ascii && META_CHAR (ic)) + { + ic = UNMETA (ic); + if (map[ESC].type == ISKMAP) + map = FUNCTION_TO_KEYMAP (map, ESC); + } + + if ((i + 1) < keys_len) + { + if (map[ic].type != ISKMAP) + { + if (map[ic].type == ISMACR) + free ((char *)map[ic].function); + + map[ic].type = ISKMAP; + map[ic].function = KEYMAP_TO_FUNCTION (rl_make_bare_keymap()); + } + map = FUNCTION_TO_KEYMAP (map, ic); + } + else + { + if (map[ic].type == ISMACR) + free ((char *)map[ic].function); + + map[ic].function = KEYMAP_TO_FUNCTION (data); + map[ic].type = type; + } + } + free (keys); + return 0; +} + +/* Translate the ASCII representation of SEQ, stuffing the values into ARRAY, + an array of characters. LEN gets the final length of ARRAY. Return + non-zero if there was an error parsing SEQ. */ +rl_translate_keyseq (seq, array, len) + char *seq, *array; + int *len; +{ + register int i, c, l = 0; + + for (i = 0; c = seq[i]; i++) + { + if (c == '\\') + { + c = seq[++i]; + + if (!c) + break; + + if (((c == 'C' || c == 'M') && seq[i + 1] == '-') || + (c == 'e')) + { + /* Handle special case of backwards define. */ + if (strncmp (&seq[i], "C-\\M-", 5) == 0) + { + array[l++] = ESC; + i += 5; + array[l++] = CTRL (to_upper (seq[i])); + if (!seq[i]) + i--; + continue; + } + + switch (c) + { + case 'M': + i++; + array[l++] = ESC; + break; + + case 'C': + i += 2; + /* Special hack for C-?... */ + if (seq[i] == '?') + array[l++] = RUBOUT; + else + array[l++] = CTRL (to_upper (seq[i])); + break; + + case 'e': + array[l++] = ESC; + } + + continue; + } + } + array[l++] = c; + } + + *len = l; + array[l] = '\0'; + return (0); +} + +/* Return a pointer to the function that STRING represents. + If STRING doesn't have a matching function, then a NULL pointer + is returned. */ +Function * +rl_named_function (string) + char *string; +{ + register int i; + + rl_initialize_funmap (); + + for (i = 0; funmap[i]; i++) + if (stricmp (funmap[i]->name, string) == 0) + return (funmap[i]->function); + return ((Function *)NULL); +} + +/* Return the function (or macro) definition which would be invoked via + KEYSEQ if executed in MAP. If MAP is NULL, then the current keymap is + used. TYPE, if non-NULL, is a pointer to an int which will receive the + type of the object pointed to. One of ISFUNC (function), ISKMAP (keymap), + or ISMACR (macro). */ +Function * +rl_function_of_keyseq (keyseq, map, type) + char *keyseq; + Keymap map; + int *type; +{ + register int i; + + if (!map) + map = _rl_keymap; + + for (i = 0; keyseq && keyseq[i]; i++) + { + int ic = keyseq[i]; + + if (META_CHAR (ic) && _rl_convert_meta_chars_to_ascii) + { + if (map[ESC].type != ISKMAP) + { + if (type) + *type = map[ESC].type; + + return (map[ESC].function); + } + else + { + map = FUNCTION_TO_KEYMAP (map, ESC); + ic = UNMETA (ic); + } + } + + if (map[ic].type == ISKMAP) + { + /* If this is the last key in the key sequence, return the + map. */ + if (!keyseq[i + 1]) + { + if (type) + *type = ISKMAP; + + return (map[ic].function); + } + else + map = FUNCTION_TO_KEYMAP (map, ic); + } + else + { + if (type) + *type = map[ic].type; + + return (map[ic].function); + } + } + return ((Function *) NULL); +} + +/* The last key bindings file read. */ +static char *last_readline_init_file = (char *)NULL; + +/* Re-read the current keybindings file. */ +rl_re_read_init_file (count, ignore) + int count, ignore; +{ + int r; + r = rl_read_init_file ((char *)NULL); + rl_set_keymap_from_edit_mode (); + return r; +} + +/* Do key bindings from a file. If FILENAME is NULL it defaults + to the first non-null filename from this list: + 1. the filename used for the previous call + 2. the value of the shell variable `INPUTRC' + 3. ~/.inputrc + If the file existed and could be opened and read, 0 is returned, + otherwise errno is returned. */ +int +rl_read_init_file (filename) + char *filename; +{ + register int i; + char *buffer, *openname, *line, *end; + struct stat finfo; + int file; + + /* Default the filename. */ + if (!filename) + { + filename = last_readline_init_file; + if (!filename) + filename = getenv ("INPUTRC"); + if (!filename) + filename = DEFAULT_INPUTRC; + } + + if (!*filename) + filename = DEFAULT_INPUTRC; + + openname = tilde_expand (filename); + + if ((stat (openname, &finfo) < 0) || + (file = open (openname, O_RDONLY, 0666)) < 0) + { + free (openname); + return (errno); + } + else + free (openname); + + if (filename != last_readline_init_file) + { + if (last_readline_init_file) + free (last_readline_init_file); + + last_readline_init_file = savestring (filename); + } + + /* Read the file into BUFFER. */ + buffer = (char *)xmalloc ((int)finfo.st_size + 1); + i = read (file, buffer, finfo.st_size); + close (file); + + if (i != finfo.st_size) + return (errno); + + /* Loop over the lines in the file. Lines that start with `#' are + comments; all other lines are commands for readline initialization. */ + line = buffer; + end = buffer + finfo.st_size; + while (line < end) + { + /* Find the end of this line. */ + for (i = 0; line + i != end && line[i] != '\n'; i++); + + /* Mark end of line. */ + line[i] = '\0'; + + /* Skip leading whitespace. */ + while (*line && whitespace (*line)) + { + line++; + i--; + } + + /* If the line is not a comment, then parse it. */ + if (*line && *line != '#') + rl_parse_and_bind (line); + + /* Move to the next line. */ + line += i + 1; + } + free (buffer); + return (0); +} + +/* **************************************************************** */ +/* */ +/* Parser Directives */ +/* */ +/* **************************************************************** */ + +/* Conditionals. */ + +/* Calling programs set this to have their argv[0]. */ +char *rl_readline_name = "other"; + +/* Stack of previous values of parsing_conditionalized_out. */ +static unsigned char *if_stack = (unsigned char *)NULL; +static int if_stack_depth = 0; +static int if_stack_size = 0; + +/* Push _rl_parsing_conditionalized_out, and set parser state based + on ARGS. */ +static int +parser_if (args) + char *args; +{ + register int i; + + /* Push parser state. */ + if (if_stack_depth + 1 >= if_stack_size) + { + if (!if_stack) + if_stack = (unsigned char *)xmalloc (if_stack_size = 20); + else + if_stack = (unsigned char *)xrealloc (if_stack, if_stack_size += 20); + } + if_stack[if_stack_depth++] = _rl_parsing_conditionalized_out; + + /* If parsing is turned off, then nothing can turn it back on except + for finding the matching endif. In that case, return right now. */ + if (_rl_parsing_conditionalized_out) + return 0; + + /* Isolate first argument. */ + for (i = 0; args[i] && !whitespace (args[i]); i++); + + if (args[i]) + args[i++] = '\0'; + + /* Handle "if term=foo" and "if mode=emacs" constructs. If this + isn't term=foo, or mode=emacs, then check to see if the first + word in ARGS is the same as the value stored in rl_readline_name. */ + if (rl_terminal_name && strnicmp (args, "term=", 5) == 0) + { + char *tem, *tname; + + /* Terminals like "aaa-60" are equivalent to "aaa". */ + tname = savestring (rl_terminal_name); + tem = strchr (tname, '-'); + if (tem) + *tem = '\0'; + + /* Test the `long' and `short' forms of the terminal name so that + if someone has a `sun-cmd' and does not want to have bindings + that will be executed if the terminal is a `sun', they can put + `$if term=sun-cmd' into their .inputrc. */ + if ((stricmp (args + 5, tname) == 0) || + (stricmp (args + 5, rl_terminal_name) == 0)) + _rl_parsing_conditionalized_out = 0; + else + _rl_parsing_conditionalized_out = 1; + + free (tname); + } +#if defined (VI_MODE) + else if (strnicmp (args, "mode=", 5) == 0) + { + int mode; + + if (stricmp (args + 5, "emacs") == 0) + mode = emacs_mode; + else if (stricmp (args + 5, "vi") == 0) + mode = vi_mode; + else + mode = no_mode; + + if (mode == rl_editing_mode) + _rl_parsing_conditionalized_out = 0; + else + _rl_parsing_conditionalized_out = 1; + } +#endif /* VI_MODE */ + /* Check to see if the first word in ARGS is the same as the + value stored in rl_readline_name. */ + else if (stricmp (args, rl_readline_name) == 0) + _rl_parsing_conditionalized_out = 0; + else + _rl_parsing_conditionalized_out = 1; + return 0; +} + +/* Invert the current parser state if there is anything on the stack. */ +static int +parser_else (args) + char *args; +{ + register int i; + + if (!if_stack_depth) + { + /* Error message? */ + return 0; + } + + /* Check the previous (n - 1) levels of the stack to make sure that + we haven't previously turned off parsing. */ + for (i = 0; i < if_stack_depth - 1; i++) + if (if_stack[i] == 1) + return 0; + + /* Invert the state of parsing if at top level. */ + _rl_parsing_conditionalized_out = !_rl_parsing_conditionalized_out; + return 0; +} + +/* Terminate a conditional, popping the value of + _rl_parsing_conditionalized_out from the stack. */ +static int +parser_endif (args) + char *args; +{ + if (if_stack_depth) + _rl_parsing_conditionalized_out = if_stack[--if_stack_depth]; + else + { + /* *** What, no error message? *** */ + } + return 0; +} + +/* Associate textual names with actual functions. */ +static struct { + char *name; + Function *function; +} parser_directives [] = { + { "if", parser_if }, + { "endif", parser_endif }, + { "else", parser_else }, + { (char *)0x0, (Function *)0x0 } +}; + +/* Handle a parser directive. STATEMENT is the line of the directive + without any leading `$'. */ +static int +handle_parser_directive (statement) + char *statement; +{ + register int i; + char *directive, *args; + + /* Isolate the actual directive. */ + + /* Skip whitespace. */ + for (i = 0; whitespace (statement[i]); i++); + + directive = &statement[i]; + + for (; statement[i] && !whitespace (statement[i]); i++); + + if (statement[i]) + statement[i++] = '\0'; + + for (; statement[i] && whitespace (statement[i]); i++); + + args = &statement[i]; + + /* Lookup the command, and act on it. */ + for (i = 0; parser_directives[i].name; i++) + if (stricmp (directive, parser_directives[i].name) == 0) + { + (*parser_directives[i].function) (args); + return (0); + } + + /* *** Should an error message be output? */ + return (1); +} + +static int substring_member_of_array (); + +/* Read the binding command from STRING and perform it. + A key binding command looks like: Keyname: function-name\0, + a variable binding command looks like: set variable value. + A new-style keybinding looks like "\C-x\C-x": exchange-point-and-mark. */ +rl_parse_and_bind (string) + char *string; +{ + char *funname, *kname; + register int c, i; + int key, equivalency; + + while (string && whitespace (*string)) + string++; + + if (!string || !*string || *string == '#') + return 0; + + /* If this is a parser directive, act on it. */ + if (*string == '$') + { + handle_parser_directive (&string[1]); + return 0; + } + + /* If we aren't supposed to be parsing right now, then we're done. */ + if (_rl_parsing_conditionalized_out) + return 0; + + i = 0; + /* If this keyname is a complex key expression surrounded by quotes, + advance to after the matching close quote. This code allows the + backslash to quote characters in the key expression. */ + if (*string == '"') + { + int passc = 0; + + for (i = 1; c = string[i]; i++) + { + if (passc) + { + passc = 0; + continue; + } + + if (c == '\\') + { + passc++; + continue; + } + + if (c == '"') + break; + } + } + + /* Advance to the colon (:) or whitespace which separates the two objects. */ + for (; (c = string[i]) && c != ':' && c != ' ' && c != '\t'; i++ ); + + equivalency = (c == ':' && string[i + 1] == '='); + + /* Mark the end of the command (or keyname). */ + if (string[i]) + string[i++] = '\0'; + + /* If doing assignment, skip the '=' sign as well. */ + if (equivalency) + string[i++] = '\0'; + + /* If this is a command to set a variable, then do that. */ + if (stricmp (string, "set") == 0) + { + char *var = string + i; + char *value; + + /* Make VAR point to start of variable name. */ + while (*var && whitespace (*var)) var++; + + /* Make value point to start of value string. */ + value = var; + while (*value && !whitespace (*value)) value++; + if (*value) + *value++ = '\0'; + while (*value && whitespace (*value)) value++; + + rl_variable_bind (var, value); + return 0; + } + + /* Skip any whitespace between keyname and funname. */ + for (; string[i] && whitespace (string[i]); i++); + funname = &string[i]; + + /* Now isolate funname. + For straight function names just look for whitespace, since + that will signify the end of the string. But this could be a + macro definition. In that case, the string is quoted, so skip + to the matching delimiter. We allow the backslash to quote the + delimiter characters in the macro body. */ + /* This code exists to allow whitespace in macro expansions, which + would otherwise be gobbled up by the next `for' loop.*/ + /* XXX - it may be desirable to allow backslash quoting only if " is + the quoted string delimiter, like the shell. */ + if (*funname == '\'' || *funname == '"') + { + int delimiter = string[i++]; + int passc = 0; + + for (; c = string[i]; i++) + { + if (passc) + { + passc = 0; + continue; + } + + if (c == '\\') + { + passc = 1; + continue; + } + + if (c == delimiter) + break; + } + if (c) + i++; + } + + /* Advance to the end of the string. */ + for (; string[i] && !whitespace (string[i]); i++); + + /* No extra whitespace at the end of the string. */ + string[i] = '\0'; + + /* Handle equivalency bindings here. Make the left-hand side be exactly + whatever the right-hand evaluates to, including keymaps. */ + if (equivalency) + { + return 0; + } + + /* If this is a new-style key-binding, then do the binding with + rl_set_key (). Otherwise, let the older code deal with it. */ + if (*string == '"') + { + char *seq = xmalloc (1 + strlen (string)); + register int j, k = 0; + int passc = 0; + + for (j = 1; string[j]; j++) + { + /* Allow backslash to quote characters, but leave them in place. + This allows a string to end with a backslash quoting another + backslash, or with a backslash quoting a double quote. The + backslashes are left in place for rl_translate_keyseq (). */ + if (passc || (string[j] == '\\')) + { + seq[k++] = string[j]; + passc = !passc; + continue; + } + + if (string[j] == '"') + break; + + seq[k++] = string[j]; + } + seq[k] = '\0'; + + /* Binding macro? */ + if (*funname == '\'' || *funname == '"') + { + j = strlen (funname); + + /* Remove the delimiting quotes from each end of FUNNAME. */ + if (j && funname[j - 1] == *funname) + funname[j - 1] = '\0'; + + rl_macro_bind (seq, &funname[1], _rl_keymap); + } + else + rl_set_key (seq, rl_named_function (funname), _rl_keymap); + + free (seq); + return 0; + } + + /* Get the actual character we want to deal with. */ + kname = strrchr (string, '-'); + if (!kname) + kname = string; + else + kname++; + + key = glean_key_from_name (kname); + + /* Add in control and meta bits. */ + if (substring_member_of_array (string, possible_control_prefixes)) + key = CTRL (to_upper (key)); + + if (substring_member_of_array (string, possible_meta_prefixes)) + key = META (key); + + /* Temporary. Handle old-style keyname with macro-binding. */ + if (*funname == '\'' || *funname == '"') + { + char seq[2]; + int fl = strlen (funname); + + seq[0] = key; seq[1] = '\0'; + if (fl && funname[fl - 1] == *funname) + funname[fl - 1] = '\0'; + + rl_macro_bind (seq, &funname[1], _rl_keymap); + } +#if defined (PREFIX_META_HACK) + /* Ugly, but working hack to keep prefix-meta around. */ + else if (stricmp (funname, "prefix-meta") == 0) + { + char seq[2]; + + seq[0] = key; + seq[1] = '\0'; + rl_generic_bind (ISKMAP, seq, (char *)emacs_meta_keymap, _rl_keymap); + } +#endif /* PREFIX_META_HACK */ + else + rl_bind_key (key, rl_named_function (funname)); + return 0; +} + +/* Simple structure for boolean readline variables (i.e., those that can + have one of two values; either "On" or 1 for truth, or "Off" or 0 for + false. */ + +static struct { + char *name; + int *value; +} boolean_varlist [] = { + { "horizontal-scroll-mode", &_rl_horizontal_scroll_mode }, + { "mark-modified-lines", &_rl_mark_modified_lines }, + { "meta-flag", &_rl_meta_flag }, +#if defined (PAREN_MATCHING) + { "blink-matching-paren", &rl_blink_matching_paren }, +#endif + { "convert-meta", &_rl_convert_meta_chars_to_ascii }, + { "show-all-if-ambiguous", &_rl_complete_show_all }, + { "output-meta", &_rl_output_meta_chars }, +#if defined (VISIBLE_STATS) + { "visible-stats", &rl_visible_stats }, +#endif /* VISIBLE_STATS */ + { "expand-tilde", &rl_complete_with_tilde_expansion }, + { (char *)NULL, (int *)NULL } +}; + +rl_variable_bind (name, value) + char *name, *value; +{ + register int i; + + /* Check for simple variables first. */ + for (i = 0; boolean_varlist[i].name; i++) + { + if (stricmp (name, boolean_varlist[i].name) == 0) + { + /* A variable is TRUE if the "value" is "on", "1" or "". */ + if ((!*value) || + (stricmp (value, "On") == 0) || + (value[0] == '1' && value[1] == '\0')) + *boolean_varlist[i].value = 1; + else + *boolean_varlist[i].value = 0; + return 0; + } + } + + /* Not a boolean variable, so check for specials. */ + + /* Editing mode change? */ + if (stricmp (name, "editing-mode") == 0) + { + if (strnicmp (value, "vi", 2) == 0) + { +#if defined (VI_MODE) + _rl_keymap = vi_insertion_keymap; + rl_editing_mode = vi_mode; +#endif /* VI_MODE */ + } + else if (strnicmp (value, "emacs", 5) == 0) + { + _rl_keymap = emacs_standard_keymap; + rl_editing_mode = emacs_mode; + } + } + + /* Comment string change? */ + else if (stricmp (name, "comment-begin") == 0) + { +#if defined (VI_MODE) + if (*value) + { + if (rl_vi_comment_begin) + free (rl_vi_comment_begin); + + rl_vi_comment_begin = savestring (value); + } +#endif /* VI_MODE */ + } + else if (stricmp (name, "completion-query-items") == 0) + { + int nval = 100; + if (*value) + { + nval = atoi (value); + if (nval < 0) + nval = 0; + } + rl_completion_query_items = nval; + } + else if (stricmp (name, "keymap") == 0) + { + Keymap kmap; + kmap = rl_get_keymap_by_name (value); + if (kmap) + rl_set_keymap (kmap); + } + else if (stricmp (name, "bell-style") == 0) + { + if (!*value) + _rl_bell_preference = AUDIBLE_BELL; + else + { + if (stricmp (value, "none") == 0 || stricmp (value, "off") == 0) + _rl_bell_preference = NO_BELL; + else if (stricmp (value, "audible") == 0 || stricmp (value, "on") == 0) + _rl_bell_preference = AUDIBLE_BELL; + else if (stricmp (value, "visible") == 0) + _rl_bell_preference = VISIBLE_BELL; + } + } + else if (stricmp (name, "prefer-visible-bell") == 0) + { + /* Backwards compatibility. */ + if (*value && (stricmp (value, "on") == 0 || + (*value == '1' && !value[1]))) + _rl_bell_preference = VISIBLE_BELL; + else + _rl_bell_preference = AUDIBLE_BELL; + } + + return 0; +} + +/* Return the character which matches NAME. + For example, `Space' returns ' '. */ + +typedef struct { + char *name; + int value; +} assoc_list; + +static assoc_list name_key_alist[] = { + { "DEL", 0x7f }, + { "ESC", '\033' }, + { "Escape", '\033' }, + { "LFD", '\n' }, + { "Newline", '\n' }, + { "RET", '\r' }, + { "Return", '\r' }, + { "Rubout", 0x7f }, + { "SPC", ' ' }, + { "Space", ' ' }, + { "Tab", 0x09 }, + { (char *)0x0, 0 } +}; + +static int +glean_key_from_name (name) + char *name; +{ + register int i; + + for (i = 0; name_key_alist[i].name; i++) + if (stricmp (name, name_key_alist[i].name) == 0) + return (name_key_alist[i].value); + + return (*(unsigned char *)name); /* XXX was return (*name) */ +} + +/* Auxiliary functions to manage keymaps. */ +static struct { + char *name; + Keymap map; +} keymap_names[] = { + { "emacs", emacs_standard_keymap }, + { "emacs-standard", emacs_standard_keymap }, + { "emacs-meta", emacs_meta_keymap }, + { "emacs-ctlx", emacs_ctlx_keymap }, +#if defined (VI_MODE) + { "vi", vi_movement_keymap }, + { "vi-move", vi_movement_keymap }, + { "vi-command", vi_movement_keymap }, + { "vi-insert", vi_insertion_keymap }, +#endif /* VI_MODE */ + { (char *)0x0, (Keymap)0x0 } +}; + +Keymap +rl_get_keymap_by_name (name) + char *name; +{ + register int i; + + for (i = 0; keymap_names[i].name; i++) + if (strcmp (name, keymap_names[i].name) == 0) + return (keymap_names[i].map); + return ((Keymap) NULL); +} + +void +rl_set_keymap (map) + Keymap map; +{ + if (map) + _rl_keymap = map; +} + +Keymap +rl_get_keymap () +{ + return (_rl_keymap); +} + +void +rl_set_keymap_from_edit_mode () +{ + if (rl_editing_mode == emacs_mode) + _rl_keymap = emacs_standard_keymap; +#if defined (VI_MODE) + else if (rl_editing_mode == vi_mode) + _rl_keymap = vi_insertion_keymap; +#endif /* VI_MODE */ +} + +/* **************************************************************** */ +/* */ +/* Key Binding and Function Information */ +/* */ +/* **************************************************************** */ + +/* Each of the following functions produces information about the + state of keybindings and functions known to Readline. The info + is always printed to rl_outstream, and in such a way that it can + be read back in (i.e., passed to rl_parse_and_bind (). */ + +/* Print the names of functions known to Readline. */ +void +rl_list_funmap_names (count, ignore) + int count, ignore; +{ + register int i; + char **funmap_names; + + funmap_names = rl_funmap_names (); + + if (!funmap_names) + return; + + for (i = 0; funmap_names[i]; i++) + fprintf (rl_outstream, "%s\n", funmap_names[i]); + + free (funmap_names); +} + +/* Return a NULL terminated array of strings which represent the key + sequences that are used to invoke FUNCTION in MAP. */ +char ** +rl_invoking_keyseqs_in_map (function, map) + Function *function; + Keymap map; +{ + register int key; + char **result; + int result_index, result_size; + + result = (char **)NULL; + result_index = result_size = 0; + + for (key = 0; key < 128; key++) + { + switch (map[key].type) + { + case ISMACR: + /* Macros match, if, and only if, the pointers are identical. + Thus, they are treated exactly like functions in here. */ + case ISFUNC: + /* If the function in the keymap is the one we are looking for, + then add the current KEY to the list of invoking keys. */ + if (map[key].function == function) + { + char *keyname = (char *)xmalloc (5); + + if (CTRL_CHAR (key)) + sprintf (keyname, "\\C-%c", to_lower (UNCTRL (key))); + else if (key == RUBOUT) + sprintf (keyname, "\\C-?"); + else if (key == '\\' || key == '"') + { + keyname[0] = '\\'; + keyname[1] = (char) key; + keyname[2] = '\0'; + } + else + { + keyname[0] = (char) key; + keyname[1] = '\0'; + } + + if (result_index + 2 > result_size) + result = (char **) xrealloc + (result, (result_size += 10) * sizeof (char *)); + + result[result_index++] = keyname; + result[result_index] = (char *)NULL; + } + break; + + case ISKMAP: + { + char **seqs = (char **)NULL; + + /* Find the list of keyseqs in this map which have FUNCTION as + their target. Add the key sequences found to RESULT. */ + if (map[key].function) + seqs = + rl_invoking_keyseqs_in_map (function, FUNCTION_TO_KEYMAP (map, key)); + + if (seqs) + { + register int i; + + for (i = 0; seqs[i]; i++) + { + char *keyname = (char *)xmalloc (6 + strlen (seqs[i])); + + if (key == ESC) + sprintf (keyname, "\\e"); + else if (CTRL_CHAR (key)) + sprintf (keyname, "\\C-%c", to_lower (UNCTRL (key))); + else if (key == RUBOUT) + sprintf (keyname, "\\C-?"); + else if (key == '\\' || key == '"') + { + keyname[0] = '\\'; + keyname[1] = (char) key; + keyname[2] = '\0'; + } + else + { + keyname[0] = (char) key; + keyname[1] = '\0'; + } + + strcat (keyname, seqs[i]); + free (seqs[i]); + + if (result_index + 2 > result_size) + result = (char **) xrealloc + (result, (result_size += 10) * sizeof (char *)); + + result[result_index++] = keyname; + result[result_index] = (char *)NULL; + } + + free (seqs); + } + } + break; + } + } + return (result); +} + +/* Return a NULL terminated array of strings which represent the key + sequences that can be used to invoke FUNCTION using the current keymap. */ +char ** +rl_invoking_keyseqs (function) + Function *function; +{ + return (rl_invoking_keyseqs_in_map (function, _rl_keymap)); +} + +/* Print all of the current functions and their bindings to + rl_outstream. If an explicit argument is given, then print + the output in such a way that it can be read back in. */ +int +rl_dump_functions (count, key) + int count, key; +{ + rl_function_dumper (rl_explicit_arg); + rl_on_new_line (); + return (0); +} + +/* Print all of the functions and their bindings to rl_outstream. If + PRINT_READABLY is non-zero, then print the output in such a way + that it can be read back in. */ +void +rl_function_dumper (print_readably) + int print_readably; +{ + register int i; + char **names; + char *name; + + names = rl_funmap_names (); + + fprintf (rl_outstream, "\n"); + + for (i = 0; name = names[i]; i++) + { + Function *function; + char **invokers; + + function = rl_named_function (name); + invokers = rl_invoking_keyseqs_in_map (function, _rl_keymap); + + if (print_readably) + { + if (!invokers) + fprintf (rl_outstream, "# %s (not bound)\n", name); + else + { + register int j; + + for (j = 0; invokers[j]; j++) + { + fprintf (rl_outstream, "\"%s\": %s\n", + invokers[j], name); + free (invokers[j]); + } + + free (invokers); + } + } + else + { + if (!invokers) + fprintf (rl_outstream, "%s is not bound to any keys\n", + name); + else + { + register int j; + + fprintf (rl_outstream, "%s can be found on ", name); + + for (j = 0; invokers[j] && j < 5; j++) + { + fprintf (rl_outstream, "\"%s\"%s", invokers[j], + invokers[j + 1] ? ", " : ".\n"); + } + + if (j == 5 && invokers[j]) + fprintf (rl_outstream, "...\n"); + + for (j = 0; invokers[j]; j++) + free (invokers[j]); + + free (invokers); + } + } + } +} + +/* Bind key sequence KEYSEQ to DEFAULT_FUNC if KEYSEQ is unbound. */ +void +_rl_bind_if_unbound (keyseq, default_func) + char *keyseq; + Function *default_func; +{ + Function *func; + + if (keyseq) + { + func = rl_function_of_keyseq (keyseq, _rl_keymap, (int *)NULL); + if (!func || func == rl_do_lowercase_version) + rl_set_key (keyseq, default_func, _rl_keymap); + } +} + +/* **************************************************************** */ +/* */ +/* String Utility Functions */ +/* */ +/* **************************************************************** */ + +static char *strindex (); + +/* Return non-zero if any members of ARRAY are a substring in STRING. */ +static int +substring_member_of_array (string, array) + char *string, **array; +{ + while (*array) + { + if (strindex (string, *array)) + return (1); + array++; + } + return (0); +} + +#if !defined (HAVE_STRCASECMP) +/* Whoops, Unix doesn't have strnicmp. */ + +/* Compare at most COUNT characters from string1 to string2. Case + doesn't matter. */ +static int +strnicmp (string1, string2, count) + char *string1, *string2; + int count; +{ + register char ch1, ch2; + + while (count) + { + ch1 = *string1++; + ch2 = *string2++; + if (to_upper(ch1) == to_upper(ch2)) + count--; + else + break; + } + return (count); +} + +/* strcmp (), but caseless. */ +static int +stricmp (string1, string2) + char *string1, *string2; +{ + register char ch1, ch2; + + while (*string1 && *string2) + { + ch1 = *string1++; + ch2 = *string2++; + if (to_upper(ch1) != to_upper(ch2)) + return (1); + } + return (*string1 - *string2); +} +#endif /* !HAVE_STRCASECMP */ + +/* Determine if s2 occurs in s1. If so, return a pointer to the + match in s1. The compare is case insensitive. */ +static char * +strindex (s1, s2) + register char *s1, *s2; +{ + register int i, l = strlen (s2); + register int len = strlen (s1); + + for (i = 0; (len - i) >= l; i++) + if (strnicmp (s1 + i, s2, l) == 0) + return (s1 + i); + return ((char *)NULL); +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/chardefs.h Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,122 @@ +/* chardefs.h -- Character definitions for readline. */ + +/* Copyright (C) 1994 Free Software Foundation, Inc. + + This file is part of the GNU Readline Library, a library for + reading lines of text with interactive input and history editing. + + The GNU Readline Library is free software; you can redistribute it + and/or modify it under the terms of the GNU General Public License + as published by the Free Software Foundation; either version 1, or + (at your option) any later version. + + The GNU Readline Library is distributed in the hope that it will be + useful, but WITHOUT ANY WARRANTY; without even the implied warranty + of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + The GNU General Public License is often shipped with GNU software, and + is generally kept in a file called COPYING or LICENSE. If you do not + have a copy of the license, write to the Free Software Foundation, + 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#ifndef _CHARDEFS_H +#define _CHARDEFS_H + +#include <ctype.h> + +#if defined (HAVE_STRING_H) +# include <string.h> +#else +# include <strings.h> +#endif /* HAVE_STRING_H */ + +#ifndef whitespace +#define whitespace(c) (((c) == ' ') || ((c) == '\t')) +#endif + +#ifdef CTRL +#undef CTRL +#endif + +/* Some character stuff. */ +#define control_character_threshold 0x020 /* Smaller than this is control. */ +#define control_character_mask 0x1f /* 0x20 - 1 */ +#define meta_character_threshold 0x07f /* Larger than this is Meta. */ +#define control_character_bit 0x40 /* 0x000000, must be off. */ +#define meta_character_bit 0x080 /* x0000000, must be on. */ +#define largest_char 255 /* Largest character value. */ + +#define CTRL_CHAR(c) ((c) < control_character_threshold) +#define META_CHAR(c) ((c) > meta_character_threshold && (c) <= largest_char) + +#define CTRL(c) ((c) & control_character_mask) +#define META(c) ((c) | meta_character_bit) + +#define UNMETA(c) ((c) & (~meta_character_bit)) +#define UNCTRL(c) to_upper(((c)|control_character_bit)) + +/* Old versions +#define lowercase_p(c) (((c) > ('a' - 1) && (c) < ('z' + 1))) +#define uppercase_p(c) (((c) > ('A' - 1) && (c) < ('Z' + 1))) +#define digit_p(c) ((c) >= '0' && (c) <= '9') +*/ + +#define lowercase_p(c) (islower(c)) +#define uppercase_p(c) (isupper(c)) +#define digit_p(x) (isdigit (x)) + +#define pure_alphabetic(c) (lowercase_p(c) || uppercase_p(c)) + +/* Old versions +# define to_upper(c) (lowercase_p(c) ? ((c) - 32) : (c)) +# define to_lower(c) (uppercase_p(c) ? ((c) + 32) : (c)) +*/ + +#ifndef to_upper +# define to_upper(c) (islower(c) ? toupper(c) : (c)) +# define to_lower(c) (isupper(c) ? tolower(c) : (c)) +#endif + +#ifndef digit_value +#define digit_value(x) ((x) - '0') +#endif + +#ifndef NEWLINE +#define NEWLINE '\n' +#endif + +#ifndef RETURN +#define RETURN CTRL('M') +#endif + +#ifndef RUBOUT +#define RUBOUT 0x7f +#endif + +#ifndef TAB +#define TAB '\t' +#endif + +#ifdef ABORT_CHAR +#undef ABORT_CHAR +#endif +#define ABORT_CHAR CTRL('G') + +#ifdef PAGE +#undef PAGE +#endif +#define PAGE CTRL('L') + +#ifdef SPACE +#undef SPACE +#endif +#define SPACE ' ' /* XXX - was 0x20 */ + +#ifdef ESC +#undef ESC +#endif + +#define ESC CTRL('[') + +#endif /* _CHARDEFS_H */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/complete.c Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,1450 @@ +/* complete.c -- filename completion for readline. */ + +/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc. + + This file is part of the GNU Readline Library, a library for + reading lines of text with interactive input and history editing. + + The GNU Readline Library is free software; you can redistribute it + and/or modify it under the terms of the GNU General Public License + as published by the Free Software Foundation; either version 1, or + (at your option) any later version. + + The GNU Readline Library is distributed in the hope that it will be + useful, but WITHOUT ANY WARRANTY; without even the implied warranty + of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + The GNU General Public License is often shipped with GNU software, and + is generally kept in a file called COPYING or LICENSE. If you do not + have a copy of the license, write to the Free Software Foundation, + 675 Mass Ave, Cambridge, MA 02139, USA. */ +#define READLINE_LIBRARY + +#if defined (HAVE_CONFIG_H) +# include "config.h" +#endif + +#include <stdio.h> +#include <sys/types.h> +#include <fcntl.h> +#if !defined (NO_SYS_FILE) +# include <sys/file.h> +#endif /* !NO_SYS_FILE */ + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif /* HAVE_UNISTD_H */ + +#if defined (HAVE_STDLIB_H) +# include <stdlib.h> +#else +# include "ansi_stdlib.h" +#endif /* HAVE_STDLIB_H */ + +#include <errno.h> +/* Not all systems declare ERRNO in errno.h... and some systems #define it! */ +#if !defined (errno) +extern int errno; +#endif /* !errno */ + +#include <pwd.h> +#if defined (USG) && !defined (HAVE_GETPW_DECLS) +extern struct passwd *getpwent (); +#endif /* USG && !HAVE_GETPW_DECLS */ + +/* ISC systems don't define getpwent() if _POSIX_SOURCE is defined. */ +#if defined (isc386) && defined (_POSIX_SOURCE) +# if defined (__STDC__) +extern struct passwd *getpwent (void); +# else +extern struct passwd *getpwent (); +# endif /* !__STDC__ */ +#endif /* isc386 && _POSIX_SOURCE */ + +#include "posixstat.h" + +/* System-specific feature definitions and include files. */ +#include "rldefs.h" + +/* Some standard library routines. */ +#include "readline.h" + +/* Possible values for do_replace in rl_complete_internal. */ +#define NO_MATCH 0 +#define SINGLE_MATCH 1 +#define MULT_MATCH 2 + +#if !defined (strchr) && !defined (__STDC__) +extern char *strchr (), *strrchr (); +#endif /* !strchr && !__STDC__ */ + +extern char *tilde_expand (); +extern char *rl_copy_text (); + +extern Function *rl_last_func; +extern int rl_editing_mode; +extern int screenwidth; + +/* Forward declarations for functions defined and used in this file. */ +char *filename_completion_function (); +char **completion_matches (); + +static int compare_strings (); +static char *rl_strpbrk (); + +#if defined (STATIC_MALLOC) +static char *xmalloc (), *xrealloc (); +#else +extern char *xmalloc (), *xrealloc (); +#endif /* STATIC_MALLOC */ + +/* If non-zero, then this is the address of a function to call when + completing on a directory name. The function is called with + the address of a string (the current directory name) as an arg. */ +Function *rl_directory_completion_hook = (Function *)NULL; + +/* Non-zero means readline completion functions perform tilde expansion. */ +int rl_complete_with_tilde_expansion = 0; + +/* If non-zero, non-unique completions always show the list of matches. */ +int _rl_complete_show_all = 0; + +#if defined (VISIBLE_STATS) +# if !defined (X_OK) +# define X_OK 1 +# endif + +static int stat_char (); + +/* Non-zero means add an additional character to each filename displayed + during listing completion iff rl_filename_completion_desired which helps + to indicate the type of file being listed. */ +int rl_visible_stats = 0; +#endif /* VISIBLE_STATS */ + +/* **************************************************************** */ +/* */ +/* Completion matching, from readline's point of view. */ +/* */ +/* **************************************************************** */ + +/* Pointer to the generator function for completion_matches (). + NULL means to use filename_entry_function (), the default filename + completer. */ +Function *rl_completion_entry_function = (Function *)NULL; + +/* Pointer to alternative function to create matches. + Function is called with TEXT, START, and END. + START and END are indices in RL_LINE_BUFFER saying what the boundaries + of TEXT are. + If this function exists and returns NULL then call the value of + rl_completion_entry_function to try to match, otherwise use the + array of strings returned. */ +CPPFunction *rl_attempted_completion_function = (CPPFunction *)NULL; + +/* Non-zero means to suppress normal filename completion after the + user-specified completion function has been called. */ +int rl_attempted_completion_over = 0; + +/* Local variable states what happened during the last completion attempt. */ +static int completion_changed_buffer = 0; + +/* Complete the word at or before point. You have supplied the function + that does the initial simple matching selection algorithm (see + completion_matches ()). The default is to do filename completion. */ + +rl_complete (ignore, invoking_key) + int ignore, invoking_key; +{ + if (rl_last_func == rl_complete && !completion_changed_buffer) + return (rl_complete_internal ('?')); + else if (_rl_complete_show_all) + return (rl_complete_internal ('!')); + else + return (rl_complete_internal (TAB)); +} + +/* List the possible completions. See description of rl_complete (). */ +rl_possible_completions (ignore, invoking_key) + int ignore, invoking_key; +{ + return (rl_complete_internal ('?')); +} + +rl_insert_completions (ignore, invoking_key) + int ignore, invoking_key; +{ + return (rl_complete_internal ('*')); +} + +/* The user must press "y" or "n". Non-zero return means "y" pressed. */ +get_y_or_n () +{ + int c; + + for (;;) + { + c = rl_read_key (); + if (c == 'y' || c == 'Y' || c == ' ') + return (1); + if (c == 'n' || c == 'N' || c == RUBOUT) + return (0); + if (c == ABORT_CHAR) + rl_abort (); + ding (); + } +} + +/* Up to this many items will be displayed in response to a + possible-completions call. After that, we ask the user if + she is sure she wants to see them all. */ +int rl_completion_query_items = 100; + +/* The basic list of characters that signal a break between words for the + completer routine. The contents of this variable is what breaks words + in the shell, i.e. " \t\n\"\\'`@$><=" */ +char *rl_basic_word_break_characters = " \t\n\"\\'`@$><=;|&{("; + +/* The list of characters that signal a break between words for + rl_complete_internal. The default list is the contents of + rl_basic_word_break_characters. */ +char *rl_completer_word_break_characters = (char *)NULL; + +/* List of characters which can be used to quote a substring of the line. + Completion occurs on the entire substring, and within the substring + rl_completer_word_break_characters are treated as any other character, + unless they also appear within this list. */ +char *rl_completer_quote_characters = (char *)NULL; + +/* List of characters that are word break characters, but should be left + in TEXT when it is passed to the completion function. The shell uses + this to help determine what kind of completing to do. */ +char *rl_special_prefixes = (char *)NULL; + +/* If non-zero, then disallow duplicates in the matches. */ +int rl_ignore_completion_duplicates = 1; + +/* Non-zero means that the results of the matches are to be treated + as filenames. This is ALWAYS zero on entry, and can only be changed + within a completion entry finder function. */ +int rl_filename_completion_desired = 0; + +/* Non-zero means that the results of the matches are to be quoted using + double quotes (or an application-specific quoting mechanism) if the + filename contains any characters in rl_word_break_chars. This is + ALWAYS non-zero on entry, and can only be changed within a completion + entry finder function. */ +int rl_filename_quoting_desired = 1; + +/* This function, if defined, is called by the completer when real + filename completion is done, after all the matching names have been + generated. It is passed a (char**) known as matches in the code below. + It consists of a NULL-terminated array of pointers to potential + matching strings. The 1st element (matches[0]) is the maximal + substring that is common to all matches. This function can re-arrange + the list of matches as required, but all elements of the array must be + free()'d if they are deleted. The main intent of this function is + to implement FIGNORE a la SunOS csh. */ +Function *rl_ignore_some_completions_function = (Function *)NULL; + +#if defined (SHELL) +/* A function to strip quotes that are not protected by backquotes. It + allows single quotes to appear within double quotes, and vice versa. + It should be smarter. It's fairly shell-specific, hence the SHELL + definition wrapper. */ +static char * +_delete_quotes (text) + char *text; +{ + char *ret, *p, *r; + int l, quoted; + + l = strlen (text); + ret = xmalloc (l + 1); + for (quoted = 0, p = text, r = ret; p && *p; p++) + { + /* Allow backslash-quoted characters to pass through unscathed. */ + if (*p == '\\') + continue; + /* Close quote. */ + if (quoted && *p == quoted) + { + quoted = 0; + continue; + } + /* Open quote. */ + if (quoted == 0 && (*p == '\'' || *p == '"')) + { + quoted = *p; + continue; + } + *r++ = *p; + } + *r = '\0'; + return ret; +} +#endif /* SHELL */ + +/* Return the portion of PATHNAME that should be output when listing + possible completions. If we are hacking filename completion, we + are only interested in the basename, the portion following the + final slash. Otherwise, we return what we were passed. */ +static char * +printable_part (pathname) + char *pathname; +{ + char *temp = (char *)NULL; + + if (rl_filename_completion_desired) + temp = strrchr (pathname, '/'); + + if (!temp) + return (pathname); + else + return (++temp); +} + +/* Output TO_PRINT to rl_outstream. If VISIBLE_STATS is defined and we + are using it, check for and output a single character for `special' + filenames. Return 1 if we printed an extension character, 0 if not. */ +#define PUTX(c) \ + if (CTRL_CHAR (c)) \ + { \ + putc ('^', rl_outstream); \ + putc (UNCTRL (c), rl_outstream); \ + } \ + else if (c == RUBOUT) \ + { \ + putc ('^', rl_outstream); \ + putc ('?', rl_outstream); \ + } \ + else \ + putc (c, rl_outstream) + +static int +print_filename (to_print, full_pathname) + char *to_print, *full_pathname; +{ +#if !defined (VISIBLE_STATS) + char *s; + + for (s = to_print; *s; s++) + { + PUTX (*s); + } + return 0; +#else + char *s, c, *new_full_pathname; + int extension_char = 0, slen, tlen; + + for (s = to_print; *s; s++) + { + PUTX (*s); + } + + if (rl_filename_completion_desired && rl_visible_stats) + { + /* If to_print != full_pathname, to_print is the basename of the + path passed. In this case, we try to expand the directory + name before checking for the stat character. */ + if (to_print != full_pathname) + { + /* Terminate the directory name. */ + c = to_print[-1]; + to_print[-1] = '\0'; + + s = tilde_expand (full_pathname); + if (rl_directory_completion_hook) + (*rl_directory_completion_hook) (&s); + + slen = strlen (s); + tlen = strlen (to_print); + new_full_pathname = xmalloc (slen + tlen + 2); + strcpy (new_full_pathname, s); + new_full_pathname[slen] = '/'; + strcpy (new_full_pathname + slen + 1, to_print); + + extension_char = stat_char (new_full_pathname); + + free (new_full_pathname); + to_print[-1] = c; + } + else + { + s = tilde_expand (full_pathname); + extension_char = stat_char (s); + } + + free (s); + if (extension_char) + putc (extension_char, rl_outstream); + return (extension_char != 0); + } + else + return 0; +#endif /* VISIBLE_STATS */ +} + +/* Complete the word at or before point. + WHAT_TO_DO says what to do with the completion. + `?' means list the possible completions. + TAB means do standard completion. + `*' means insert all of the possible completions. + `!' means to do standard completion, and list all possible completions if + there is more than one. */ +rl_complete_internal (what_to_do) + int what_to_do; +{ + char **matches; + Function *our_func; + int start, scan, end, delimiter = 0, pass_next; + char *text, *saved_line_buffer; + char *replacement; + char quote_char = '\0'; + int found_quote = 0; + + if (rl_line_buffer) + saved_line_buffer = savestring (rl_line_buffer); + else + saved_line_buffer = (char *)NULL; + + if (rl_completion_entry_function) + our_func = rl_completion_entry_function; + else + our_func = (Function *)filename_completion_function; + + /* Only the completion entry function can change these. */ + rl_filename_completion_desired = 0; + rl_filename_quoting_desired = 1; + + /* We now look backwards for the start of a filename/variable word. */ + end = rl_point; + + if (rl_point) + { + if (rl_completer_quote_characters) + { + /* We have a list of characters which can be used in pairs to + quote substrings for the completer. Try to find the start + of an unclosed quoted substring. */ + /* FOUND_QUOTE is set so we know what kind of quotes we found. */ + for (scan = pass_next = 0; scan < end; scan++) + { + if (pass_next) + { + pass_next = 0; + continue; + } + + if (rl_line_buffer[scan] == '\\') + { + pass_next = 1; + found_quote |= 4; + continue; + } + + if (quote_char != '\0') + { + /* Ignore everything until the matching close quote char. */ + if (rl_line_buffer[scan] == quote_char) + { + /* Found matching close. Abandon this substring. */ + quote_char = '\0'; + rl_point = end; + } + } + else if (strchr (rl_completer_quote_characters, rl_line_buffer[scan])) + { + /* Found start of a quoted substring. */ + quote_char = rl_line_buffer[scan]; + rl_point = scan + 1; + /* Shell-like quoting conventions. */ + if (quote_char == '\'') + found_quote |= 1; + else if (quote_char == '"') + found_quote |= 2; + } + } + } + + if (rl_point == end && found_quote == 0) + { + int quoted = 0; + /* We didn't find an unclosed quoted substring upon which to do + completion, so use the word break characters to find the + substring on which to complete. */ + while (--rl_point) + { + scan = rl_line_buffer[rl_point]; + + if (strchr (rl_completer_word_break_characters, scan) == 0) + continue; + +#if defined (SHELL) + /* Don't let word break characters in quoted substrings break + words for the completer. */ + if (found_quote && char_is_quoted (rl_line_buffer, rl_point)) + continue; +#endif /* SHELL */ + + /* Convoluted code, but it avoids an n^2 algorithm with calls + to char_is_quoted. */ + break; + } + } + + /* If we are at an unquoted word break, then advance past it. */ + scan = rl_line_buffer[rl_point]; +#if defined (SHELL) + if ((found_quote == 0 || char_is_quoted (rl_line_buffer, rl_point) == 0) && + strchr (rl_completer_word_break_characters, scan)) +#else + if (strchr (rl_completer_word_break_characters, scan)) +#endif + { + /* If the character that caused the word break was a quoting + character, then remember it as the delimiter. */ + if (strchr ("\"'", scan) && (end - rl_point) > 1) + delimiter = scan; + + /* If the character isn't needed to determine something special + about what kind of completion to perform, then advance past it. */ + if (!rl_special_prefixes || strchr (rl_special_prefixes, scan) == 0) + rl_point++; + } + } + + /* At this point, we know we have an open quote if quote_char != '\0'. */ + start = rl_point; + rl_point = end; + text = rl_copy_text (start, end); + + /* If the user wants to TRY to complete, but then wants to give + up and use the default completion function, they set the + variable rl_attempted_completion_function. */ + if (rl_attempted_completion_function) + { + matches = (*rl_attempted_completion_function) (text, start, end); + + if (matches || rl_attempted_completion_over) + { + rl_attempted_completion_over = 0; + our_func = (Function *)NULL; + goto after_usual_completion; + } + } + +#if defined (SHELL) + /* Beware -- we're stripping the quotes here. Do this only if we know + we are doing filename completion. */ + if (found_quote && our_func == (Function *)filename_completion_function) + { + /* delete single and double quotes */ + replacement = _delete_quotes (text); + free (text); + text = replacement; + replacement = (char *)0; + } +#endif /* SHELL */ + + matches = completion_matches (text, our_func); + + after_usual_completion: + free (text); + + if (!matches) + ding (); + else + { + register int i; + int should_quote; + + /* It seems to me that in all the cases we handle we would like + to ignore duplicate possiblilities. Scan for the text to + insert being identical to the other completions. */ + if (rl_ignore_completion_duplicates) + { + char *lowest_common; + int j, newlen = 0; + char dead_slot; + char **temp_array; + + /* Sort the items. */ + /* It is safe to sort this array, because the lowest common + denominator found in matches[0] will remain in place. */ + for (i = 0; matches[i]; i++) + ; + /* Try sorting the array without matches[0], since we need it to + stay in place no matter what. */ + if (i) + qsort (matches+1, i-1, sizeof (char *), compare_strings); + + /* Remember the lowest common denominator for it may be unique. */ + lowest_common = savestring (matches[0]); + + for (i = 0; matches[i + 1]; i++) + { + if (strcmp (matches[i], matches[i + 1]) == 0) + { + free (matches[i]); + matches[i] = (char *)&dead_slot; + } + else + newlen++; + } + + /* We have marked all the dead slots with (char *)&dead_slot. + Copy all the non-dead entries into a new array. */ + temp_array = (char **)xmalloc ((3 + newlen) * sizeof (char *)); + for (i = j = 1; matches[i]; i++) + { + if (matches[i] != (char *)&dead_slot) + temp_array[j++] = matches[i]; + } + temp_array[j] = (char *)NULL; + + if (matches[0] != (char *)&dead_slot) + free (matches[0]); + free (matches); + + matches = temp_array; + + /* Place the lowest common denominator back in [0]. */ + matches[0] = lowest_common; + + /* If there is one string left, and it is identical to the + lowest common denominator, then the LCD is the string to + insert. */ + if (j == 2 && strcmp (matches[0], matches[1]) == 0) + { + free (matches[1]); + matches[1] = (char *)NULL; + } + } + + switch (what_to_do) + { + case TAB: + case '!': + /* If we are matching filenames, then here is our chance to + do clever processing by re-examining the list. Call the + ignore function with the array as a parameter. It can + munge the array, deleting matches as it desires. */ + if (rl_ignore_some_completions_function && + our_func == (Function *)filename_completion_function) + (void)(*rl_ignore_some_completions_function)(matches); + + /* If we are doing completion on quoted substrings, and any matches + contain any of the completer_word_break_characters, then auto- + matically prepend the substring with a quote character (just pick + the first one from the list of such) if it does not already begin + with a quote string. FIXME: Need to remove any such automatically + inserted quote character when it no longer is necessary, such as + if we change the string we are completing on and the new set of + matches don't require a quoted substring. */ + replacement = matches[0]; + + should_quote = matches[0] && rl_completer_quote_characters && + rl_filename_completion_desired && + rl_filename_quoting_desired; + + if (should_quote) +#if defined (SHELL) + should_quote = should_quote && (!quote_char || quote_char == '"'); +#else + should_quote = should_quote && !quote_char; +#endif + + if (should_quote) + { + int do_replace; + + do_replace = NO_MATCH; + + /* If there is a single match, see if we need to quote it. + This also checks whether the common prefix of several + matches needs to be quoted. If the common prefix should + not be checked, add !matches[1] to the if clause. */ + should_quote = rl_strpbrk (matches[0], rl_completer_word_break_characters) != 0; +#if defined (SHELL) + should_quote = should_quote || rl_strpbrk (matches[0], "#$`?*[!") != 0; +#endif + + if (should_quote) + do_replace = matches[1] ? MULT_MATCH : SINGLE_MATCH; + + if (do_replace != NO_MATCH) + { +#if defined (SHELL) + /* Quote the replacement, since we found an + embedded word break character in a potential + match. */ + char *rtext, *mtext; + int rlen; + extern char *double_quote (); /* in builtins/common.c */ + + /* If DO_REPLACE == MULT_MATCH, it means that there is + more than one match. In this case, we do not add + the closing quote or attempt to perform tilde + expansion. If DO_REPLACE == SINGLE_MATCH, we try + to perform tilde expansion, because double quotes + inhibit tilde expansion by the shell. */ + + mtext = matches[0]; + if (mtext[0] == '~' && do_replace == SINGLE_MATCH) + mtext = tilde_expand (matches[0]); + rtext = double_quote (mtext); + if (mtext != matches[0]) + free (mtext); + + rlen = strlen (rtext); + replacement = xmalloc (rlen + 1); + /* If we're completing on a quoted string where the user + has already supplied the opening quote, we don't want + the quote in the replacement text, and we reset + QUOTE_CHAR to 0 to avoid an extra closing quote. */ + if (quote_char == '"') + { + strcpy (replacement, rtext + 1); + rlen--; + quote_char = 0; + } + else + strcpy (replacement, rtext); + if (do_replace == MULT_MATCH) + replacement[rlen - 1] = '\0'; + free (rtext); +#else /* !SHELL */ + /* Found an embedded word break character in a potential + match, so we need to prepend a quote character if we + are replacing the completion string. */ + replacement = xmalloc (strlen (matches[0]) + 2); + quote_char = *rl_completer_quote_characters; + *replacement = quote_char; + strcpy (replacement + 1, matches[0]); +#endif /* SHELL */ + } + } + + if (replacement) + { + rl_begin_undo_group (); + rl_delete_text (start, rl_point); + rl_point = start; + rl_insert_text (replacement); + rl_end_undo_group (); + if (replacement != matches[0]) + free (replacement); + } + + /* If there are more matches, ring the bell to indicate. + If this was the only match, and we are hacking files, + check the file to see if it was a directory. If so, + add a '/' to the name. If not, and we are at the end + of the line, then add a space. */ + if (matches[1]) + { + if (what_to_do == '!') + goto display_matches; /* XXX */ + else if (rl_editing_mode != vi_mode) + ding (); /* There are other matches remaining. */ + } + else + { + char temp_string[4]; + int temp_string_index = 0; + + if (quote_char) + temp_string[temp_string_index++] = quote_char; + + temp_string[temp_string_index++] = delimiter ? delimiter : ' '; + temp_string[temp_string_index++] = '\0'; + + if (rl_filename_completion_desired) + { + struct stat finfo; + char *filename = tilde_expand (matches[0]); + + if ((stat (filename, &finfo) == 0) && S_ISDIR (finfo.st_mode)) + { + if (rl_line_buffer[rl_point] != '/') + rl_insert_text ("/"); + } + else + { + if (rl_point == rl_end) + rl_insert_text (temp_string); + } + free (filename); + } + else + { + if (rl_point == rl_end) + rl_insert_text (temp_string); + } + } + break; + + case '*': + { + int i = 1; + + rl_begin_undo_group (); + rl_delete_text (start, rl_point); + rl_point = start; + if (matches[1]) + { + while (matches[i]) + { + rl_insert_text (matches[i++]); + rl_insert_text (" "); + } + } + else + { + rl_insert_text (matches[0]); + rl_insert_text (" "); + } + rl_end_undo_group (); + } + break; + + case '?': + { + int len, count, limit, max; + int j, k, l; + + /* Handle simple case first. What if there is only one answer? */ + if (!matches[1]) + { + char *temp; + + temp = printable_part (matches[0]); + crlf (); + print_filename (temp, matches[0]); + crlf (); + goto restart; + } + + /* There is more than one answer. Find out how many there are, + and find out what the maximum printed length of a single entry + is. */ + display_matches: + for (max = 0, i = 1; matches[i]; i++) + { + char *temp; + int name_length; + + temp = printable_part (matches[i]); + name_length = strlen (temp); + + if (name_length > max) + max = name_length; + } + + len = i - 1; + + /* If there are many items, then ask the user if she + really wants to see them all. */ + if (len >= rl_completion_query_items) + { + crlf (); + fprintf (rl_outstream, + "There are %d possibilities. Do you really", len); + crlf (); + fprintf (rl_outstream, "wish to see them all? (y or n)"); + fflush (rl_outstream); + if (!get_y_or_n ()) + { + crlf (); + goto restart; + } + } + + /* How many items of MAX length can we fit in the screen window? */ + max += 2; + limit = screenwidth / max; + if (limit != 1 && (limit * max == screenwidth)) + limit--; + + /* Avoid a possible floating exception. If max > screenwidth, + limit will be 0 and a divide-by-zero fault will result. */ + if (limit == 0) + limit = 1; + + /* How many iterations of the printing loop? */ + count = (len + (limit - 1)) / limit; + + /* Watch out for special case. If LEN is less than LIMIT, then + just do the inner printing loop. + 0 < len <= limit implies count = 1. */ + + /* Sort the items if they are not already sorted. */ + if (!rl_ignore_completion_duplicates) + qsort (matches + 1, len - 1, sizeof (char *), compare_strings); + + /* Print the sorted items, up-and-down alphabetically, like + ls might. */ + crlf (); + + for (i = 1; i <= count; i++) + { + for (j = 0, l = i; j < limit; j++) + { + if (l > len || !matches[l]) + break; + else + { + char *temp; + int printed_length; + + temp = printable_part (matches[l]); + printed_length = strlen (temp); + printed_length += print_filename (temp, matches[l]); + + if (j + 1 < limit) + { + for (k = 0; k < max - printed_length; k++) + putc (' ', rl_outstream); + } + } + l += count; + } + crlf (); + } + restart: + + rl_on_new_line (); + } + break; + + default: + fprintf (stderr, "\r\nreadline: bad value for what_to_do in rl_complete\n"); + abort (); + } + + for (i = 0; matches[i]; i++) + free (matches[i]); + free (matches); + } + + /* Check to see if the line has changed through all of this manipulation. */ + if (saved_line_buffer) + { + if (strcmp (rl_line_buffer, saved_line_buffer) != 0) + completion_changed_buffer = 1; + else + completion_changed_buffer = 0; + + free (saved_line_buffer); + } + return 0; +} + +#if defined (VISIBLE_STATS) +/* Return the character which best describes FILENAME. + `@' for symbolic links + `/' for directories + `*' for executables + `=' for sockets */ +static int +stat_char (filename) + char *filename; +{ + struct stat finfo; + int character, r; + +#if defined (S_ISLNK) + r = lstat (filename, &finfo); +#else + r = stat (filename, &finfo); +#endif + + if (r == -1) + return (0); + + character = 0; + if (S_ISDIR (finfo.st_mode)) + character = '/'; +#if defined (S_ISLNK) + else if (S_ISLNK (finfo.st_mode)) + character = '@'; +#endif /* S_ISLNK */ +#if defined (S_ISSOCK) + else if (S_ISSOCK (finfo.st_mode)) + character = '='; +#endif /* S_ISSOCK */ + else if (S_ISREG (finfo.st_mode)) + { + if (access (filename, X_OK) == 0) + character = '*'; + } + return (character); +} +#endif /* VISIBLE_STATS */ + +/* Stupid comparison routine for qsort () ing strings. */ +static int +compare_strings (s1, s2) + char **s1, **s2; +{ + int result; + + result = **s1 - **s2; + if (result == 0) + result = strcmp (*s1, *s2); + + return result; +} + +/* A completion function for usernames. + TEXT contains a partial username preceded by a random + character (usually `~'). */ +char * +username_completion_function (text, state) + int state; + char *text; +{ +#if defined (__GO32__) + return (char *)NULL; +#else /* !__GO32__ */ + static char *username = (char *)NULL; + static struct passwd *entry; + static int namelen, first_char, first_char_loc; + + if (!state) + { + if (username) + free (username); + + first_char = *text; + + if (first_char == '~') + first_char_loc = 1; + else + first_char_loc = 0; + + username = savestring (&text[first_char_loc]); + namelen = strlen (username); + setpwent (); + } + + while (entry = getpwent ()) + { + /* Null usernames should result in all users as possible completions. */ + if (namelen == 0) + break; + else if ((username[0] == entry->pw_name[0]) && + (strncmp (username, entry->pw_name, namelen) == 0)) + break; + } + + if (!entry) + { + endpwent (); + return ((char *)NULL); + } + else + { + char *value = xmalloc (2 + strlen (entry->pw_name)); + + *value = *text; + + strcpy (value + first_char_loc, entry->pw_name); + + if (first_char == '~') + rl_filename_completion_desired = 1; + + return (value); + } +#endif /* !__GO32__ */ +} + +/* **************************************************************** */ +/* */ +/* Completion */ +/* */ +/* **************************************************************** */ + +/* Non-zero means that case is not significant in completion. */ +int completion_case_fold = 0; + +/* Return an array of (char *) which is a list of completions for TEXT. + If there are no completions, return a NULL pointer. + The first entry in the returned array is the substitution for TEXT. + The remaining entries are the possible completions. + The array is terminated with a NULL pointer. + + ENTRY_FUNCTION is a function of two args, and returns a (char *). + The first argument is TEXT. + The second is a state argument; it should be zero on the first call, and + non-zero on subsequent calls. It returns a NULL pointer to the caller + when there are no more matches. + */ +char ** +completion_matches (text, entry_function) + char *text; + CPFunction *entry_function; +{ + /* Number of slots in match_list. */ + int match_list_size; + + /* The list of matches. */ + char **match_list = + (char **)xmalloc (((match_list_size = 10) + 1) * sizeof (char *)); + + /* Number of matches actually found. */ + int matches = 0; + + /* Temporary string binder. */ + char *string; + + match_list[1] = (char *)NULL; + + while (string = (*entry_function) (text, matches)) + { + if (matches + 1 == match_list_size) + match_list = (char **)xrealloc + (match_list, ((match_list_size += 10) + 1) * sizeof (char *)); + + match_list[++matches] = string; + match_list[matches + 1] = (char *)NULL; + } + + /* If there were any matches, then look through them finding out the + lowest common denominator. That then becomes match_list[0]. */ + if (matches) + { + register int i = 1; + int low = 100000; /* Count of max-matched characters. */ + + /* If only one match, just use that. */ + if (matches == 1) + { + match_list[0] = match_list[1]; + match_list[1] = (char *)NULL; + } + else + { + /* Otherwise, compare each member of the list with + the next, finding out where they stop matching. */ + + while (i < matches) + { + register int c1, c2, si; + + if (completion_case_fold) + { + for (si = 0; + (c1 = to_lower(match_list[i][si])) && + (c2 = to_lower(match_list[i + 1][si])); + si++) + if (c1 != c2) break; + } + else + { + for (si = 0; + (c1 = match_list[i][si]) && + (c2 = match_list[i + 1][si]); + si++) + if (c1 != c2) break; + } + + if (low > si) low = si; + i++; + } + match_list[0] = xmalloc (low + 1); + strncpy (match_list[0], match_list[1], low); + match_list[0][low] = '\0'; + } + } + else /* There were no matches. */ + { + free (match_list); + match_list = (char **)NULL; + } + return (match_list); +} + +/* Okay, now we write the entry_function for filename completion. In the + general case. Note that completion in the shell is a little different + because of all the pathnames that must be followed when looking up the + completion for a command. */ +char * +filename_completion_function (text, state) + int state; + char *text; +{ + static DIR *directory; + static char *filename = (char *)NULL; + static char *dirname = (char *)NULL; + static char *users_dirname = (char *)NULL; + static int filename_len; + + struct dirent *entry = (struct dirent *)NULL; + + /* If we don't have any state, then do some initialization. */ + if (!state) + { + char *temp; + + if (dirname) free (dirname); + if (filename) free (filename); + if (users_dirname) free (users_dirname); + + filename = savestring (text); + if (!*text) text = "."; + dirname = savestring (text); + + temp = strrchr (dirname, '/'); + + if (temp) + { + strcpy (filename, ++temp); + *temp = '\0'; + } + else + strcpy (dirname, "."); + + /* We aren't done yet. We also support the "~user" syntax. */ + + /* Save the version of the directory that the user typed. */ + users_dirname = savestring (dirname); + { + char *temp_dirname; + int replace_dirname; + + temp_dirname = tilde_expand (dirname); + free (dirname); + dirname = temp_dirname; + + replace_dirname = 0; + if (rl_directory_completion_hook) + replace_dirname = (*rl_directory_completion_hook) (&dirname); + if (replace_dirname) + { + free (users_dirname); + users_dirname = savestring (dirname); + } + } + directory = opendir (dirname); + filename_len = strlen (filename); + + rl_filename_completion_desired = 1; + } + + /* At this point we should entertain the possibility of hacking wildcarded + filenames, like /usr/man/man<WILD>/te<TAB>. If the directory name + contains globbing characters, then build an array of directories, and + then map over that list while completing. */ + /* *** UNIMPLEMENTED *** */ + + /* Now that we have some state, we can read the directory. */ + + while (directory && (entry = readdir (directory))) + { + /* Special case for no filename. + All entries except "." and ".." match. */ + if (!filename_len) + { + if ((strcmp (entry->d_name, ".") != 0) && + (strcmp (entry->d_name, "..") != 0)) + break; + } + else + { + /* Otherwise, if these match up to the length of filename, then + it is a match. */ + if ((entry->d_name[0] == filename[0]) && + (((int)D_NAMLEN (entry)) >= filename_len) && + (strncmp (filename, entry->d_name, filename_len) == 0)) + break; + } + } + + if (!entry) + { + if (directory) + { + closedir (directory); + directory = (DIR *)NULL; + } + if (dirname) + { + free (dirname); + dirname = (char *)NULL; + } + if (filename) + { + free (filename); + filename = (char *)NULL; + } + if (users_dirname) + { + free (users_dirname); + users_dirname = (char *)NULL; + } + + return (char *)NULL; + } + else + { + char *temp; + + /* dirname && (strcmp (dirname, ".") != 0) */ + if (dirname && (dirname[0] != '.' || dirname[1])) + { + if (rl_complete_with_tilde_expansion && *users_dirname == '~') + { + int dirlen = strlen (dirname); + temp = xmalloc (2 + dirlen + D_NAMLEN (entry)); + strcpy (temp, dirname); + /* Canonicalization cuts off any final slash present. We need + to add it back. */ + if (dirname[dirlen - 1] != '/') + { + temp[dirlen] = '/'; + temp[dirlen + 1] = '\0'; + } + } + else + { + temp = xmalloc (1 + strlen (users_dirname) + D_NAMLEN (entry)); + strcpy (temp, users_dirname); + } + + strcat (temp, entry->d_name); + } + else + temp = (savestring (entry->d_name)); + + return (temp); + } +} + +/* A function for simple tilde expansion. */ +int +rl_tilde_expand (ignore, key) + int ignore, key; +{ + register int start, end; + char *homedir; + + end = rl_point; + start = end - 1; + + if (rl_point == rl_end && rl_line_buffer[rl_point] == '~') + { + homedir = tilde_expand ("~"); + goto insert; + } + else if (rl_line_buffer[start] != '~') + { + for (; !whitespace (rl_line_buffer[start]) && start >= 0; start--); + start++; + } + + end = start; + do + { + end++; + } + while (!whitespace (rl_line_buffer[end]) && end < rl_end); + + if (whitespace (rl_line_buffer[end]) || end >= rl_end) + end--; + + /* If the first character of the current word is a tilde, perform + tilde expansion and insert the result. If not a tilde, do + nothing. */ + if (rl_line_buffer[start] == '~') + { + char *temp; + int len; + + len = end - start + 1; + temp = xmalloc (len + 1); + strncpy (temp, rl_line_buffer + start, len); + temp[len] = '\0'; + homedir = tilde_expand (temp); + free (temp); + + insert: + rl_begin_undo_group (); + rl_delete_text (start, end + 1); + rl_point = start; + rl_insert_text (homedir); + rl_end_undo_group (); + } + + return (0); +} + +/* Find the first occurrence in STRING1 of any character from STRING2. + Return a pointer to the character in STRING1. */ +static char * +rl_strpbrk (string1, string2) + char *string1, *string2; +{ + register char *scan; + + for (; *string1; string1++) + { + for (scan = string2; *scan; scan++) + { + if (*string1 == *scan) + { + return (string1); + } + } + } + return ((char *)NULL); +} + +#if defined (STATIC_MALLOC) + +/* **************************************************************** */ +/* */ +/* xmalloc and xrealloc () */ +/* */ +/* **************************************************************** */ + +static void memory_error_and_abort (); + +static char * +xmalloc (bytes) + int bytes; +{ + char *temp = (char *)malloc (bytes); + + if (!temp) + memory_error_and_abort (); + return (temp); +} + +static char * +xrealloc (pointer, bytes) + char *pointer; + int bytes; +{ + char *temp; + + if (!pointer) + temp = (char *)malloc (bytes); + else + temp = (char *)realloc (pointer, bytes); + + if (!temp) + memory_error_and_abort (); + + return (temp); +} + +static void +memory_error_and_abort () +{ + fprintf (stderr, "readline: Out of virtual memory!\n"); + abort (); +} +#endif /* STATIC_MALLOC */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/display.c Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,1276 @@ +/* display.c -- readline redisplay facility. */ + +/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc. + + This file is part of the GNU Readline Library, a library for + reading lines of text with interactive input and history editing. + + The GNU Readline Library is free software; you can redistribute it + and/or modify it under the terms of the GNU General Public License + as published by the Free Software Foundation; either version 1, or + (at your option) any later version. + + The GNU Readline Library is distributed in the hope that it will be + useful, but WITHOUT ANY WARRANTY; without even the implied warranty + of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + The GNU General Public License is often shipped with GNU software, and + is generally kept in a file called COPYING or LICENSE. If you do not + have a copy of the license, write to the Free Software Foundation, + 675 Mass Ave, Cambridge, MA 02139, USA. */ +#define READLINE_LIBRARY + +#if defined (HAVE_CONFIG_H) +# include "config.h" +#endif + +#include <stdio.h> +#include <sys/types.h> + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif /* HAVE_UNISTD_H */ + +#if defined (HAVE_STDLIB_H) +# include <stdlib.h> +#else +# include "ansi_stdlib.h" +#endif /* HAVE_STDLIB_H */ + +#include "posixstat.h" + +/* System-specific feature definitions and include files. */ +#include "rldefs.h" + +/* Some standard library routines. */ +#include "readline.h" +#include "history.h" + +#if !defined (strchr) && !defined (__STDC__) +extern char *strchr (), *strrchr (); +#endif /* !strchr && !__STDC__ */ + +/* Global and pseudo-global variables and functions + imported from readline.c. */ +extern char *rl_prompt; +extern int readline_echoing_p; +extern char *term_clreol, *term_im, *term_ic, *term_ei, *term_DC; +/* Termcap variables. */ +extern char *term_up, *term_dc, *term_cr, *term_IC; +extern int screenheight, screenwidth, screenchars; +extern int terminal_can_insert, term_xn; + +extern void _rl_output_some_chars (); +extern int _rl_output_character_function (); + +extern int _rl_output_meta_chars; +extern int _rl_horizontal_scroll_mode; +extern int _rl_mark_modified_lines; +extern int _rl_prefer_visible_bell; + +/* Pseudo-global functions (local to the readline library) exported + by this file. */ +void _rl_move_cursor_relative (), _rl_output_some_chars (); +void _rl_move_vert (); + +static void update_line (), clear_to_eol (), space_to_eol (); +static void delete_chars (), insert_some_chars (); + +extern char *xmalloc (), *xrealloc (); + +/* Heuristic used to decide whether it is faster to move from CUR to NEW + by backing up or outputting a carriage return and moving forward. */ +#define CR_FASTER(new, cur) (((new) + 1) < ((cur) - (new))) + +/* **************************************************************** */ +/* */ +/* Display stuff */ +/* */ +/* **************************************************************** */ + +/* This is the stuff that is hard for me. I never seem to write good + display routines in C. Let's see how I do this time. */ + +/* (PWP) Well... Good for a simple line updater, but totally ignores + the problems of input lines longer than the screen width. + + update_line and the code that calls it makes a multiple line, + automatically wrapping line update. Careful attention needs + to be paid to the vertical position variables. */ + +/* Keep two buffers; one which reflects the current contents of the + screen, and the other to draw what we think the new contents should + be. Then compare the buffers, and make whatever changes to the + screen itself that we should. Finally, make the buffer that we + just drew into be the one which reflects the current contents of the + screen, and place the cursor where it belongs. + + Commands that want to can fix the display themselves, and then let + this function know that the display has been fixed by setting the + RL_DISPLAY_FIXED variable. This is good for efficiency. */ + +/* Global variables declared here. */ +/* What YOU turn on when you have handled all redisplay yourself. */ +int rl_display_fixed = 0; + +/* The stuff that gets printed out before the actual text of the line. + This is usually pointing to rl_prompt. */ +char *rl_display_prompt = (char *)NULL; + +/* Pseudo-global variables declared here. */ +/* The visible cursor position. If you print some text, adjust this. */ +int _rl_last_c_pos = 0; +int _rl_last_v_pos = 0; + +/* Number of lines currently on screen minus 1. */ +int _rl_vis_botlin = 0; + +/* Variables used only in this file. */ +/* The last left edge of text that was displayed. This is used when + doing horizontal scrolling. It shifts in thirds of a screenwidth. */ +static int last_lmargin = 0; + +/* The line display buffers. One is the line currently displayed on + the screen. The other is the line about to be displayed. */ +static char *visible_line = (char *)NULL; +static char *invisible_line = (char *)NULL; + +/* A buffer for `modeline' messages. */ +static char msg_buf[128]; + +/* Non-zero forces the redisplay even if we thought it was unnecessary. */ +static int forced_display = 0; + +/* Default and initial buffer size. Can grow. */ +static int line_size = 1024; + +static char *last_prompt_string = (char *)NULL; +static char *local_prompt, *local_prompt_prefix; +static int visible_length, prefix_length; + +/* The number of invisible characters in the line currently being + displayed on the screen. */ +static int visible_wrap_offset = 0; + +/* The length (buffer offset) of the first line of the last (possibly + multi-line) buffer displayed on the screen. */ +static int visible_first_line_len = 0; + +/* Expand the prompt string S and return the number of visible + characters in *LP, if LP is not null. This is currently more-or-less + a placeholder for expansion. */ + +/* Current implementation: + \001 (^A) start non-visible characters + \002 (^B) end non-visible characters + all characters except \001 and \002 (following a \001) are copied to + the returned string; all characters except those between \001 and + \002 are assumed to be `visible'. */ + +static char * +expand_prompt (pmt, lp) + char *pmt; + int *lp; +{ + char *r, *ret, *p; + int l, rl, ignoring; + + /* Short-circuit if we can. */ + if (strchr (pmt, RL_PROMPT_START_IGNORE) == 0) + { + r = savestring (pmt); + if (lp) + *lp = strlen (r); + return r; + } + + l = pmt ? strlen (pmt) : 0; + r = ret = xmalloc (l + 1); + + for (rl = ignoring = 0, p = pmt; p && *p; p++) + { + /* This code strips the invisible character string markers + RL_PROMPT_START_IGNORE and RL_PROMPT_END_IGNORE */ + if (*p == RL_PROMPT_START_IGNORE) + { + ignoring++; + continue; + } + else if (ignoring && *p == RL_PROMPT_END_IGNORE) + { + ignoring = 0; + continue; + } + else + { + *r++ = *p; + if (!ignoring) + rl++; + } + } + + *r = '\0'; + if (lp) + *lp = rl; + return ret; +} + +/* + * Expand the prompt string into the various display components, if + * necessary. + * + * local_prompt = expanded last line of string in rl_display_prompt + * (portion after the final newline) + * local_prompt_prefix = portion before last newline of rl_display_prompt, + * expanded via expand_prompt + * visible_length = number of visible characters in local_prompt + * prefix_length = number of visible characters in local_prompt_prefix + * + * This function is called once per call to readline(). It may also be + * called arbitrarily to expand the primary prompt. + * + * The return value is the number of visible characters on the last line + * of the (possibly multi-line) prompt. + */ +int +rl_expand_prompt (prompt) + char *prompt; +{ + char *p, *t; + int c; + + /* Clear out any saved values. */ + if (local_prompt) + free (local_prompt); + if (local_prompt_prefix) + free (local_prompt_prefix); + local_prompt = local_prompt_prefix = (char *)0; + + if (prompt == 0 || *prompt == '\0') + return (0); + + p = strrchr (prompt, '\n'); + if (!p) + { + /* The prompt is only one line. */ + local_prompt = expand_prompt (prompt, &visible_length); + local_prompt_prefix = (char *)0; + return (visible_length); + } + else + { + /* The prompt spans multiple lines. */ + t = ++p; + local_prompt = expand_prompt (p, &visible_length); + c = *t; *t = '\0'; + /* The portion of the prompt string up to and including the + final newline is now null-terminated. */ + local_prompt_prefix = expand_prompt (prompt, &prefix_length); + *t = c; + return (prefix_length); + } +} + +/* Basic redisplay algorithm. */ +void +rl_redisplay () +{ + register int in, out, c, linenum; + register char *line = invisible_line; + int c_pos = 0, inv_botlin = 0, wrap_offset, wrap_column; + char *prompt_this_line; + + if (!readline_echoing_p) + return; + + if (!rl_display_prompt) + rl_display_prompt = ""; + + if (!invisible_line) + { + visible_line = xmalloc (line_size); + invisible_line = xmalloc (line_size); + line = invisible_line; + for (in = 0; in < line_size; in++) + { + visible_line[in] = 0; + invisible_line[in] = 1; + } + rl_on_new_line (); + } + + /* Draw the line into the buffer. */ + c_pos = -1; + + /* Mark the line as modified or not. We only do this for history + lines. */ + out = 0; + if (_rl_mark_modified_lines && current_history () && rl_undo_list) + { + line[out++] = '*'; + line[out] = '\0'; + } + + /* If someone thought that the redisplay was handled, but the currently + visible line has a different modification state than the one about + to become visible, then correct the caller's misconception. */ + if (visible_line[0] != invisible_line[0]) + rl_display_fixed = 0; + + /* If the prompt to be displayed is the `primary' readline prompt (the + one passed to readline()), use the values we have already expanded. + If not, use what's already in rl_display_prompt. WRAP_OFFSET is the + number of non-visible characters in the prompt string. */ + if (rl_display_prompt == rl_prompt) + { + int local_len = local_prompt ? strlen (local_prompt) : 0; + if (local_prompt_prefix && forced_display) + _rl_output_some_chars (local_prompt_prefix, strlen (local_prompt_prefix)); + + if (local_len > 0) + strncpy (line + out, local_prompt, local_len); + out += local_len; + line[out] = '\0'; + wrap_offset = local_len - visible_length; + } + else + { + int pmtlen; + prompt_this_line = strrchr (rl_display_prompt, '\n'); + if (!prompt_this_line) + prompt_this_line = rl_display_prompt; + else + { + prompt_this_line++; + if (forced_display) + _rl_output_some_chars (rl_display_prompt, prompt_this_line - rl_display_prompt); + } + + pmtlen = strlen (prompt_this_line); + strncpy (line + out, prompt_this_line, pmtlen); + out += pmtlen; + line[out] = '\0'; + wrap_offset = 0; + } + + for (in = 0; in < rl_end; in++) + { + c = (unsigned char)rl_line_buffer[in]; + + if (out + 8 >= line_size) /* XXX - 8 for \t */ + { + line_size *= 2; + visible_line = xrealloc (visible_line, line_size); + invisible_line = xrealloc (invisible_line, line_size); + line = invisible_line; + } + + if (in == rl_point) + c_pos = out; + + if (META_CHAR (c)) + { + if (_rl_output_meta_chars == 0) + { + sprintf (line + out, "\\%o", c); + out += 4; + } + else + line[out++] = c; + } +#if defined (DISPLAY_TABS) + else if (c == '\t') + { + register int newout = (out | (int)7) + 1; + while (out < newout) + line[out++] = ' '; + } +#endif + else if (c < ' ') + { + line[out++] = '^'; + line[out++] = UNCTRL (c); /* XXX was c ^ 0x40 */ + } + else if (c == 127) + { + line[out++] = '^'; + line[out++] = '?'; + } + else + line[out++] = c; + } + line[out] = '\0'; + if (c_pos < 0) + c_pos = out; + + /* C_POS == position in buffer where cursor should be placed. */ + + /* PWP: now is when things get a bit hairy. The visible and invisible + line buffers are really multiple lines, which would wrap every + (screenwidth - 1) characters. Go through each in turn, finding + the changed region and updating it. The line order is top to bottom. */ + + /* If we can move the cursor up and down, then use multiple lines, + otherwise, let long lines display in a single terminal line, and + horizontally scroll it. */ + + if (!_rl_horizontal_scroll_mode && term_up && *term_up) + { + int total_screen_chars = screenchars; + int nleft, cursor_linenum, pos, changed_screen_line; + + if (!rl_display_fixed || forced_display) + { + forced_display = 0; + + /* If we have more than a screenful of material to display, then + only display a screenful. We should display the last screen, + not the first. I'll fix this in a minute. */ + if (out >= total_screen_chars) + out = total_screen_chars - 1; + + /* Number of screen lines to display. The first line wraps at + (screenwidth + wrap_offset) chars, the rest of the lines have + screenwidth chars. */ + nleft = out - wrap_offset + term_xn - 1; + inv_botlin = (nleft > 0) ? nleft / screenwidth : 0; + + /* The first line is at character position 0 in the buffer. The + second and subsequent lines start at N * screenwidth, offset by + OFFSET. OFFSET is wrap_offset for the invisible line and + visible_wrap_offset for the line currently displayed. */ + +#define W_OFFSET(line, offset) ((line) == 0 ? offset : 0) +#define L_OFFSET(n, offset) ((n) > 0 ? ((n) * screenwidth) + (offset) : 0) +#define VIS_CHARS(line) &visible_line[L_OFFSET((line), visible_wrap_offset)] +#define VIS_LINE(line) ((line) > _rl_vis_botlin) ? "" : VIS_CHARS(line) +#define INV_LINE(line) &invisible_line[L_OFFSET((line), wrap_offset)] + + /* For each line in the buffer, do the updating display. */ + for (linenum = 0; linenum <= inv_botlin; linenum++) + { + update_line (VIS_LINE(linenum), INV_LINE(linenum), linenum, + screenwidth + W_OFFSET(linenum, visible_wrap_offset), + screenwidth + W_OFFSET(linenum, wrap_offset), + inv_botlin); + + /* If this is the line with the prompt, we might need to + compensate for invisible characters in the new line. Do + this only if there is not more than one new line (which + implies that we completely overwrite the old visible line) + and the new line is shorter than the old. */ + if (linenum == 0 && + inv_botlin == 0 && + (wrap_offset > visible_wrap_offset) && + (_rl_last_c_pos < visible_first_line_len)) + { + nleft = screenwidth + wrap_offset - _rl_last_c_pos; + if (nleft) + clear_to_eol (nleft); + } + + /* Since the new first line is now visible, save its length. */ + if (linenum == 0) + visible_first_line_len = (inv_botlin > 0) ? screenwidth : out - wrap_offset; + } + + /* We may have deleted some lines. If so, clear the left over + blank ones at the bottom out. */ + if (_rl_vis_botlin > inv_botlin) + { + char *tt; + for (; linenum <= _rl_vis_botlin; linenum++) + { + tt = VIS_CHARS (linenum); + _rl_move_vert (linenum); + _rl_move_cursor_relative (0, tt); + clear_to_eol + ((linenum == _rl_vis_botlin) ? strlen (tt) : screenwidth); + } + } + _rl_vis_botlin = inv_botlin; + + /* Move the cursor where it should be. */ + /* Which line? */ + nleft = c_pos - wrap_offset + term_xn - 1; + cursor_linenum = (nleft > 0) ? nleft / screenwidth : 0; + + /* CHANGED_SCREEN_LINE is set to 1 if we have moved to a + different screen line during this redisplay. */ + changed_screen_line = _rl_last_v_pos != cursor_linenum; + if (changed_screen_line) + { + _rl_move_vert (cursor_linenum); + /* If we moved up to the line with the prompt using term_up, + the physical cursor position on the screen stays the same, + but the buffer position needs to be adjusted to account + for invisible characters. */ + if (cursor_linenum == 0 && wrap_offset) + _rl_last_c_pos += wrap_offset; + } + + /* We have to reprint the prompt if it contains invisible + characters, since it's not generally OK to just reprint + the characters from the current cursor position. */ + nleft = visible_length + wrap_offset; + if (cursor_linenum == 0 && wrap_offset > 0 && _rl_last_c_pos > 0 && + _rl_last_c_pos <= nleft && local_prompt) + { + if (term_cr) + tputs (term_cr, 1, _rl_output_character_function); + _rl_output_some_chars (local_prompt, nleft); + _rl_last_c_pos = nleft; + } + + /* Where on that line? And where does that line start + in the buffer? */ + pos = L_OFFSET(cursor_linenum, wrap_offset); + /* nleft == number of characters in the line buffer between the + start of the line and the cursor position. */ + nleft = c_pos - pos; + + /* Since backspace() doesn't know about invisible characters in the + prompt, and there's no good way to tell it, we compensate for + those characters here and call backspace() directly. */ + if (wrap_offset && cursor_linenum == 0 && nleft < _rl_last_c_pos) + { + backspace (_rl_last_c_pos - nleft); + _rl_last_c_pos = nleft; + } + + if (nleft != _rl_last_c_pos) + _rl_move_cursor_relative (nleft, &invisible_line[pos]); + } + } + else /* Do horizontal scrolling. */ + { +#define M_OFFSET(margin, offset) ((margin) == 0 ? offset : 0) + int lmargin, ndisp, nleft, phys_c_pos, t; + + /* Always at top line. */ + _rl_last_v_pos = 0; + + /* Compute where in the buffer the displayed line should start. This + will be LMARGIN. */ + + /* The number of characters that will be displayed before the cursor. */ + ndisp = c_pos - wrap_offset; + nleft = visible_length + wrap_offset; + /* Where the new cursor position will be on the screen. This can be + longer than SCREENWIDTH; if it is, lmargin will be adjusted. */ + phys_c_pos = c_pos - (last_lmargin ? last_lmargin : wrap_offset); + t = screenwidth / 3; + + /* If the number of characters had already exceeded the screenwidth, + last_lmargin will be > 0. */ + + /* If the number of characters to be displayed is more than the screen + width, compute the starting offset so that the cursor is about + two-thirds of the way across the screen. */ + if (phys_c_pos > screenwidth - 2) + { + lmargin = c_pos - (2 * t); + if (lmargin < 0) + lmargin = 0; + /* If the left margin would be in the middle of a prompt with + invisible characters, don't display the prompt at all. */ + if (wrap_offset && lmargin > 0 && lmargin < nleft) + lmargin = nleft; + } + else if (ndisp < screenwidth - 2) /* XXX - was -1 */ + lmargin = 0; + else if (phys_c_pos < 1) + { + /* If we are moving back towards the beginning of the line and + the last margin is no longer correct, compute a new one. */ + lmargin = ((c_pos - 1) / t) * t; /* XXX */ + if (wrap_offset && lmargin > 0 && lmargin < nleft) + lmargin = nleft; + } + else + lmargin = last_lmargin; + + /* If the first character on the screen isn't the first character + in the display line, indicate this with a special character. */ + if (lmargin > 0) + line[lmargin] = '<'; + + /* If SCREENWIDTH characters starting at LMARGIN do not encompass + the whole line, indicate that with a special characters at the + right edge of the screen. If LMARGIN is 0, we need to take the + wrap offset into account. */ + t = lmargin + M_OFFSET (lmargin, wrap_offset) + screenwidth; + if (t < out) + line[t - 1] = '>'; + + if (!rl_display_fixed || forced_display || lmargin != last_lmargin) + { + forced_display = 0; + update_line (&visible_line[last_lmargin], + &invisible_line[lmargin], + 0, + screenwidth + visible_wrap_offset, + screenwidth + (lmargin ? 0 : wrap_offset), + 0); + + /* If the visible new line is shorter than the old, but the number + of invisible characters is greater, and we are at the end of + the new line, we need to clear to eol. */ + t = _rl_last_c_pos - M_OFFSET (lmargin, wrap_offset); + if ((M_OFFSET (lmargin, wrap_offset) > visible_wrap_offset) && + (_rl_last_c_pos == out) && + t < visible_first_line_len) + { + nleft = screenwidth - t; + clear_to_eol (nleft); + } + visible_first_line_len = out - lmargin - M_OFFSET (lmargin, wrap_offset); + if (visible_first_line_len > screenwidth) + visible_first_line_len = screenwidth; + + _rl_move_cursor_relative (c_pos - lmargin, &invisible_line[lmargin]); + last_lmargin = lmargin; + } + } + fflush (rl_outstream); + + /* Swap visible and non-visible lines. */ + { + char *temp = visible_line; + visible_line = invisible_line; + invisible_line = temp; + rl_display_fixed = 0; + /* If we are displaying on a single line, and last_lmargin is > 0, we + are not displaying any invisible characters, so set visible_wrap_offset + to 0. */ + if (_rl_horizontal_scroll_mode && last_lmargin) + visible_wrap_offset = 0; + else + visible_wrap_offset = wrap_offset; + } +} + +/* PWP: update_line() is based on finding the middle difference of each + line on the screen; vis: + + /old first difference + /beginning of line | /old last same /old EOL + v v v v +old: eddie> Oh, my little gruntle-buggy is to me, as lurgid as +new: eddie> Oh, my little buggy says to me, as lurgid as + ^ ^ ^ ^ + \beginning of line | \new last same \new end of line + \new first difference + + All are character pointers for the sake of speed. Special cases for + no differences, as well as for end of line additions must be handeled. + + Could be made even smarter, but this works well enough */ +static void +update_line (old, new, current_line, omax, nmax, inv_botlin) + register char *old, *new; + int current_line, omax, nmax; +{ + register char *ofd, *ols, *oe, *nfd, *nls, *ne; + int temp, lendiff, wsatend, od, nd; + + /* If we're at the right edge of a terminal that supports xn, we're + ready to wrap around, so do so. This fixes problems with knowing + the exact cursor position and cut-and-paste with certain terminal + emulators. In this calculation, TEMP is the physical screen + position of the cursor. */ + temp = _rl_last_c_pos - W_OFFSET(_rl_last_v_pos, visible_wrap_offset); + if (temp == screenwidth && term_xn && !_rl_horizontal_scroll_mode + && _rl_last_v_pos == current_line - 1) + { + if (new[0]) + putc (new[0], rl_outstream); + else + putc (' ', rl_outstream); + _rl_last_c_pos = 1; /* XXX */ + _rl_last_v_pos++; + if (old[0] && new[0]) + old[0] = new[0]; + } + + /* Find first difference. */ + for (ofd = old, nfd = new; + (ofd - old < omax) && *ofd && (*ofd == *nfd); + ofd++, nfd++) + ; + + /* Move to the end of the screen line. ND and OD are used to keep track + of the distance between ne and new and oe and old, respectively, to + move a subtraction out of each loop. */ + for (od = ofd - old, oe = ofd; od < omax && *oe; oe++, od++); + for (nd = nfd - new, ne = nfd; nd < nmax && *ne; ne++, nd++); + + /* If no difference, continue to next line. */ + if (ofd == oe && nfd == ne) + return; + + wsatend = 1; /* flag for trailing whitespace */ + ols = oe - 1; /* find last same */ + nls = ne - 1; + while ((ols > ofd) && (nls > nfd) && (*ols == *nls)) + { + if (*ols != ' ') + wsatend = 0; + ols--; + nls--; + } + + if (wsatend) + { + ols = oe; + nls = ne; + } + else if (*ols != *nls) + { + if (*ols) /* don't step past the NUL */ + ols++; + if (*nls) + nls++; + } + + _rl_move_vert (current_line); + + /* If this is the first line and there are invisible characters in the + prompt string, and the prompt string has not changed, then redraw + the entire prompt string. We can only do this reliably if the + terminal supports a `cr' capability. + + This is more than just an efficiency hack -- there is a problem with + redrawing portions of the prompt string if they contain terminal + escape sequences (like drawing the `unbold' sequence without a + corresponding `bold') that manifests itself on certain terminals. */ + + lendiff = local_prompt ? strlen (local_prompt) : 0; + if (current_line == 0 && !_rl_horizontal_scroll_mode && + lendiff > visible_length && + _rl_last_c_pos > 0 && (ofd - old) >= lendiff && term_cr) + { + tputs (term_cr, 1, _rl_output_character_function); + _rl_output_some_chars (local_prompt, lendiff); + _rl_last_c_pos = lendiff; + } + + _rl_move_cursor_relative (ofd - old, old); + + /* if (len (new) > len (old)) */ + lendiff = (nls - nfd) - (ols - ofd); + + /* Insert (diff (len (old), len (new)) ch. */ + temp = ne - nfd; + if (lendiff > 0) + { + /* Non-zero if we're increasing the number of lines. */ + int gl = current_line >= _rl_vis_botlin && inv_botlin > _rl_vis_botlin; + /* Sometimes it is cheaper to print the characters rather than + use the terminal's capabilities. If we're growing the number + of lines, make sure we actually cause the new line to wrap + around on auto-wrapping terminals. */ + if (terminal_can_insert && ((2 * temp) >= lendiff || term_IC) && (!term_xn || !gl)) + { + /* If lendiff > visible_length and _rl_last_c_pos == 0 and + _rl_horizontal_scroll_mode == 1, inserting the characters with + term_IC or term_ic will screw up the screen because of the + invisible characters. We need to just draw them. */ + if (*ols && (!_rl_horizontal_scroll_mode || _rl_last_c_pos > 0 || + lendiff <= visible_length)) + { + insert_some_chars (nfd, lendiff); + _rl_last_c_pos += lendiff; + } + else + { + /* At the end of a line the characters do not have to + be "inserted". They can just be placed on the screen. */ + _rl_output_some_chars (nfd, lendiff); + _rl_last_c_pos += lendiff; + } + /* Copy (new) chars to screen from first diff to last match. */ + temp = nls - nfd; + if ((temp - lendiff) > 0) + { + _rl_output_some_chars (nfd + lendiff, temp - lendiff); + _rl_last_c_pos += temp - lendiff; + } + } + else + { + /* cannot insert chars, write to EOL */ + _rl_output_some_chars (nfd, temp); + _rl_last_c_pos += temp; + } + } + else /* Delete characters from line. */ + { + /* If possible and inexpensive to use terminal deletion, then do so. */ + if (term_dc && (2 * temp) >= -lendiff) + { + /* If all we're doing is erasing the invisible characters in the + prompt string, don't bother. It screws up the assumptions + about what's on the screen. */ + if (_rl_horizontal_scroll_mode && _rl_last_c_pos == 0 && + -lendiff == visible_wrap_offset) + lendiff = 0; + + if (lendiff) + delete_chars (-lendiff); /* delete (diff) characters */ + + /* Copy (new) chars to screen from first diff to last match */ + temp = nls - nfd; + if (temp > 0) + { + _rl_output_some_chars (nfd, temp); + _rl_last_c_pos += temp; + } + } + /* Otherwise, print over the existing material. */ + else + { + if (temp > 0) + { + _rl_output_some_chars (nfd, temp); + _rl_last_c_pos += temp; + } + lendiff = (oe - old) - (ne - new); + if (term_xn && current_line < inv_botlin) + space_to_eol (lendiff); + else + clear_to_eol (lendiff); + } + } +} + +/* Tell the update routines that we have moved onto a new (empty) line. */ +rl_on_new_line () +{ + if (visible_line) + visible_line[0] = '\0'; + + _rl_last_c_pos = _rl_last_v_pos = 0; + _rl_vis_botlin = last_lmargin = 0; + return 0; +} + +/* Actually update the display, period. */ +rl_forced_update_display () +{ + if (visible_line) + { + register char *temp = visible_line; + + while (*temp) *temp++ = '\0'; + } + rl_on_new_line (); + forced_display++; + rl_redisplay (); + return 0; +} + +/* Move the cursor from _rl_last_c_pos to NEW, which are buffer indices. + DATA is the contents of the screen line of interest; i.e., where + the movement is being done. */ +void +_rl_move_cursor_relative (new, data) + int new; + char *data; +{ + register int i; + + /* If we don't have to do anything, then return. */ + if (_rl_last_c_pos == new) return; + + /* It may be faster to output a CR, and then move forwards instead + of moving backwards. */ + /* i == current physical cursor position. */ + i = _rl_last_c_pos - W_OFFSET(_rl_last_v_pos, visible_wrap_offset); + if (CR_FASTER (new, _rl_last_c_pos) || (term_xn && i == screenwidth)) + { +#if defined (__MSDOS__) + putc ('\r', rl_outstream); +#else + tputs (term_cr, 1, _rl_output_character_function); +#endif /* !__MSDOS__ */ + _rl_last_c_pos = 0; + } + + if (_rl_last_c_pos < new) + { + /* Move the cursor forward. We do it by printing the command + to move the cursor forward if there is one, else print that + portion of the output buffer again. Which is cheaper? */ + + /* The above comment is left here for posterity. It is faster + to print one character (non-control) than to print a control + sequence telling the terminal to move forward one character. + That kind of control is for people who don't know what the + data is underneath the cursor. */ +#if defined (HACK_TERMCAP_MOTION) + extern char *term_forward_char; + + if (term_forward_char) + for (i = _rl_last_c_pos; i < new; i++) + tputs (term_forward_char, 1, _rl_output_character_function); + else + for (i = _rl_last_c_pos; i < new; i++) + putc (data[i], rl_outstream); +#else + for (i = _rl_last_c_pos; i < new; i++) + putc (data[i], rl_outstream); +#endif /* HACK_TERMCAP_MOTION */ + } + else if (_rl_last_c_pos != new) + backspace (_rl_last_c_pos - new); + _rl_last_c_pos = new; +} + +/* PWP: move the cursor up or down. */ +void +_rl_move_vert (to) + int to; +{ + register int delta, i; + + if (_rl_last_v_pos == to || to > screenheight) + return; + +#if defined (__GO32__) + { + int row, col; + + ScreenGetCursor (&row, &col); + ScreenSetCursor ((row + to - _rl_last_v_pos), col); + } +#else /* !__GO32__ */ + + if ((delta = to - _rl_last_v_pos) > 0) + { + for (i = 0; i < delta; i++) + putc ('\n', rl_outstream); + tputs (term_cr, 1, _rl_output_character_function); + _rl_last_c_pos = 0; + } + else + { /* delta < 0 */ + if (term_up && *term_up) + for (i = 0; i < -delta; i++) + tputs (term_up, 1, _rl_output_character_function); + } +#endif /* !__GO32__ */ + _rl_last_v_pos = to; /* Now TO is here */ +} + +/* Physically print C on rl_outstream. This is for functions which know + how to optimize the display. Return the number of characters output. */ +rl_show_char (c) + int c; +{ + int n = 1; + if (META_CHAR (c) && (_rl_output_meta_chars == 0)) + { + fprintf (rl_outstream, "M-"); + n += 2; + c = UNMETA (c); + } + +#if defined (DISPLAY_TABS) + if (c < 32 && c != '\t') +#else + if (c < 32) +#endif /* !DISPLAY_TABS */ + { + fprintf (rl_outstream, "C-"); + n += 2; + c += 64; + } + + putc (c, rl_outstream); + fflush (rl_outstream); + return n; +} + +int +rl_character_len (c, pos) + register int c, pos; +{ + unsigned char uc; + + uc = (unsigned char)c; + + if (META_CHAR (uc)) + return ((_rl_output_meta_chars == 0) ? 4 : 1); + + if (uc == '\t') + { +#if defined (DISPLAY_TABS) + return (((pos | 7) + 1) - pos); +#else + return (2); +#endif /* !DISPLAY_TABS */ + } + + return ((isprint (uc)) ? 1 : 2); +} + +/* How to print things in the "echo-area". The prompt is treated as a + mini-modeline. */ + +#if defined (HAVE_VARARGS_H) +rl_message (va_alist) + va_dcl +{ + char *format; + va_list args; + + va_start (args); + format = va_arg (args, char *); + vsprintf (msg_buf, format, args); + va_end (args); + + rl_display_prompt = msg_buf; + rl_redisplay (); + return 0; +} +#else /* !HAVE_VARARGS_H */ +rl_message (format, arg1, arg2) + char *format; +{ + sprintf (msg_buf, format, arg1, arg2); + rl_display_prompt = msg_buf; + rl_redisplay (); + return 0; +} +#endif /* !HAVE_VARARGS_H */ + +/* How to clear things from the "echo-area". */ +rl_clear_message () +{ + rl_display_prompt = rl_prompt; + rl_redisplay (); + return 0; +} + +rl_reset_line_state () +{ + rl_on_new_line (); + + rl_display_prompt = rl_prompt ? rl_prompt : ""; + forced_display = 1; + return 0; +} + +/* Quick redisplay hack when erasing characters at the end of the line. */ +void +_rl_erase_at_end_of_line (l) + int l; +{ + register int i; + + backspace (l); + for (i = 0; i < l; i++) + putc (' ', rl_outstream); + backspace (l); + for (i = 0; i < l; i++) + visible_line[--_rl_last_c_pos] = '\0'; + rl_display_fixed++; +} + +/* Clear to the end of the line. COUNT is the minimum + number of character spaces to clear, */ +static void +clear_to_eol (count) + int count; +{ +#if !defined (__GO32__) + if (term_clreol) + { + tputs (term_clreol, 1, _rl_output_character_function); + } + else +#endif /* !__GO32__ */ + space_to_eol (count); +} + +/* Clear to the end of the line using spaces. COUNT is the minimum + number of character spaces to clear, */ +static void +space_to_eol (count) + int count; +{ + register int i; + + for (i = 0; i < count; i++) + putc (' ', rl_outstream); + + _rl_last_c_pos += count; +} + +/* Insert COUNT characters from STRING to the output stream. */ +static void +insert_some_chars (string, count) + char *string; + int count; +{ +#if defined (__GO32__) + int row, col, width; + char *row_start; + + ScreenGetCursor (&row, &col); + width = ScreenCols (); + row_start = ScreenPrimary + (row * width); + + memcpy (row_start + col + count, row_start + col, width - col - count); + + /* Place the text on the screen. */ + _rl_output_some_chars (string, count); +#else /* !_GO32 */ + + /* If IC is defined, then we do not have to "enter" insert mode. */ + if (term_IC) + { + char *tgoto (), *buffer; + buffer = tgoto (term_IC, 0, count); + tputs (buffer, 1, _rl_output_character_function); + _rl_output_some_chars (string, count); + } + else + { + register int i; + + /* If we have to turn on insert-mode, then do so. */ + if (term_im && *term_im) + tputs (term_im, 1, _rl_output_character_function); + + /* If there is a special command for inserting characters, then + use that first to open up the space. */ + if (term_ic && *term_ic) + { + for (i = count; i--; ) + tputs (term_ic, 1, _rl_output_character_function); + } + + /* Print the text. */ + _rl_output_some_chars (string, count); + + /* If there is a string to turn off insert mode, we had best use + it now. */ + if (term_ei && *term_ei) + tputs (term_ei, 1, _rl_output_character_function); + } +#endif /* !__GO32__ */ +} + +/* Delete COUNT characters from the display line. */ +static void +delete_chars (count) + int count; +{ +#if defined (__GO32__) + int row, col, width; + char *row_start; + + ScreenGetCursor (&row, &col); + width = ScreenCols (); + row_start = ScreenPrimary + (row * width); + + memcpy (row_start + col, row_start + col + count, width - col - count); + memset (row_start + width - count, 0, count * 2); +#else /* !_GO32 */ + + if (count > screenwidth) /* XXX */ + return; + + if (term_DC && *term_DC) + { + char *tgoto (), *buffer; + buffer = tgoto (term_DC, count, count); + tputs (buffer, count, _rl_output_character_function); + } + else + { + if (term_dc && *term_dc) + while (count--) + tputs (term_dc, 1, _rl_output_character_function); + } +#endif /* !__GO32__ */ +} + +void +_rl_update_final () +{ + int full_lines; + + full_lines = 0; + if (_rl_vis_botlin && visible_line[screenwidth * _rl_vis_botlin] == 0) + { + _rl_vis_botlin--; + full_lines = 1; + } + _rl_move_vert (_rl_vis_botlin); + if (full_lines && term_xn) + { + /* Remove final line-wrap flag in xterm. */ + char *last_line; + last_line = &visible_line[screenwidth * _rl_vis_botlin]; + _rl_move_cursor_relative (screenwidth - 1, last_line); + clear_to_eol (0); + putc (last_line[screenwidth - 1], rl_outstream); + } + _rl_vis_botlin = 0; + crlf (); + fflush (rl_outstream); + rl_display_fixed++; +} + +/* Move to the start of the current line. */ +static void +cr () +{ + if (term_cr) + { + tputs (term_cr, 1, _rl_output_character_function); + _rl_last_c_pos = 0; + } +} + +/* Redisplay the current line after a SIGWINCH is received. */ +void +_rl_redisplay_after_sigwinch () +{ + char *t, *oldp; + + /* Clear the current line and put the cursor at column 0. Make sure + the right thing happens if we have wrapped to a new screen line. */ + if (term_cr) + { + tputs (term_cr, 1, _rl_output_character_function); + _rl_last_c_pos = 0; + if (term_clreol) + tputs (term_clreol, 1, _rl_output_character_function); + else + { + space_to_eol (screenwidth); + tputs (term_cr, 1, _rl_output_character_function); + } + if (_rl_last_v_pos > 0) + _rl_move_vert (0); + } + else + crlf (); + + /* Redraw only the last line of a multi-line prompt. */ + t = strrchr (rl_display_prompt, '\n'); + if (t) + { + oldp = rl_display_prompt; + rl_display_prompt = ++t; + rl_forced_update_display (); + rl_display_prompt = oldp; + } + else + rl_forced_update_display (); +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/doc/hist.texinfo Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,113 @@ +\input texinfo @c -*-texinfo-*- +@c %**start of header (This is for running Texinfo on a region.) +@setfilename history.info +@settitle GNU History Library +@c %**end of header (This is for running Texinfo on a region.) + +@setchapternewpage odd + +@ignore +last change: Wed Jul 20 09:57:17 EDT 1994 +@end ignore + +@set EDITION 2.0 +@set VERSION 2.0 +@set UPDATED 20 July 1994 +@set UPDATE-MONTH July 1994 + +@ifinfo +This document describes the GNU History library, a programming tool that +provides a consistent user interface for recalling lines of previously +typed input. + +Copyright (C) 1988, 1991 Free Software Foundation, Inc. + +Permission is granted to make and distribute verbatim copies of +this manual provided the copyright notice and this permission notice +pare preserved on all copies. + +@ignore +Permission is granted to process this file through TeX and print the +results, provided the printed document carries copying permission +notice identical to this one except for the removal of this paragraph +(this paragraph not being relevant to the printed manual). +@end ignore + +Permission is granted to copy and distribute modified versions of this +manual under the conditions for verbatim copying, provided that the entire +resulting derived work is distributed under the terms of a permission +notice identical to this one. + +Permission is granted to copy and distribute translations of this manual +into another language, under the above conditions for modified versions, +except that this permission notice may be stated in a translation approved +by the Foundation. +@end ifinfo + +@titlepage +@sp 10 +@title GNU History Library +@subtitle Edition @value{EDITION}, for @code{History Library} Version @value{VERSION}. +@subtitle @value{UPDATE-MONTH} +@author Brian Fox, Free Software Foundation +@author Chet Ramey, Case Western Reserve University + +@page +This document describes the GNU History library, a programming tool that +provides a consistent user interface for recalling lines of previously +typed input. + +Published by the Free Software Foundation @* +675 Massachusetts Avenue, @* +Cambridge, MA 02139 USA + +Permission is granted to make and distribute verbatim copies of +this manual provided the copyright notice and this permission notice +are preserved on all copies. + +Permission is granted to copy and distribute modified versions of this +manual under the conditions for verbatim copying, provided that the entire +resulting derived work is distributed under the terms of a permission +notice identical to this one. + +Permission is granted to copy and distribute translations of this manual +into another language, under the above conditions for modified versions, +except that this permission notice may be stated in a translation approved +by the Foundation. + +@vskip 0pt plus 1filll +Copyright @copyright{} 1989, 1991 Free Software Foundation, Inc. +@end titlepage + +@ifinfo +@node Top +@top GNU History Library + +This document describes the GNU History library, a programming tool that +provides a consistent user interface for recalling lines of previously +typed input. + +@menu +* Using History Interactively:: GNU History User's Manual. +* Programming with GNU History:: GNU History Programmer's Manual. +* Concept Index:: Index of concepts described in this manual. +* Function and Variable Index:: Index of externally visible functions + and variables. +@end menu +@end ifinfo + +@syncodeindex fn vr + +@include hsuser.texinfo +@include hstech.texinfo + +@node Concept Index +@appendix Concept Index +@printindex cp + +@node Function and Variable Index +@appendix Function and Variable Index +@printindex vr + +@contents +@bye
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/doc/hstech.texinfo Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,489 @@ +@ignore +This file documents the user interface to the GNU History library. + +Copyright (C) 1988, 1991 Free Software Foundation, Inc. +Authored by Brian Fox and Chet Ramey. + +Permission is granted to make and distribute verbatim copies of this manual +provided the copyright notice and this permission notice are preserved on +all copies. + +Permission is granted to process this file through Tex and print the +results, provided the printed document carries copying permission notice +identical to this one except for the removal of this paragraph (this +paragraph not being relevant to the printed manual). + +Permission is granted to copy and distribute modified versions of this +manual under the conditions for verbatim copying, provided also that the +GNU Copyright statement is available to the distributee, and provided that +the entire resulting derived work is distributed under the terms of a +permission notice identical to this one. + +Permission is granted to copy and distribute translations of this manual +into another language, under the above conditions for modified versions. +@end ignore + +@node Programming with GNU History +@chapter Programming with GNU History + +This chapter describes how to interface programs that you write +with the GNU History Library. +It should be considered a technical guide. +For information on the interactive use of GNU History, @pxref{Using +History Interactively}. + +@menu +* Introduction to History:: What is the GNU History library for? +* History Storage:: How information is stored. +* History Functions:: Functions that you can use. +* History Variables:: Variables that control behaviour. +* History Programming Example:: Example of using the GNU History Library. +@end menu + +@node Introduction to History +@section Introduction to History + +Many programs read input from the user a line at a time. The GNU History +library is able to keep track of those lines, associate arbitrary data with +each line, and utilize information from previous lines in composing new +ones. + +The programmer using the History library has available functions +for remembering lines on a history list, associating arbitrary data +with a line, removing lines from the list, searching through the list +for a line containing an arbitrary text string, and referencing any line +in the list directly. In addition, a history @dfn{expansion} function +is available which provides for a consistent user interface across +different programs. + +The user using programs written with the History library has the +benefit of a consistent user interface with a set of well-known +commands for manipulating the text of previous lines and using that text +in new commands. The basic history manipulation commands are similar to +the history substitution provided by @code{csh}. + +If the programmer desires, he can use the Readline library, which +includes some history manipulation by default, and has the added +advantage of command line editing. + +@node History Storage +@section History Storage + +The history list is an array of history entries. A history entry is +declared as follows: + +@example +typedef struct _hist_entry @{ + char *line; + char *data; +@} HIST_ENTRY; +@end example + +The history list itself might therefore be declared as + +@example +HIST_ENTRY **the_history_list; +@end example + +The state of the History library is encapsulated into a single structure: + +@example +/* A structure used to pass the current state of the history stuff around. */ +typedef struct _hist_state @{ + HIST_ENTRY **entries; /* Pointer to the entries themselves. */ + int offset; /* The location pointer within this array. */ + int length; /* Number of elements within this array. */ + int size; /* Number of slots allocated to this array. */ + int flags; +@} HISTORY_STATE; +@end example + +If the flags member includes @code{HS_STIFLED}, the history has been +stifled. + +@node History Functions +@section History Functions + +This section describes the calling sequence for the various functions +present in GNU History. + +@menu +* Initializing History and State Management:: Functions to call when you + want to use history in a + program. +* History List Management:: Functions used to manage the list + of history entries. +* Information About the History List:: Functions returning information about + the history list. +* Moving Around the History List:: Functions used to change the position + in the history list. +* Searching the History List:: Functions to search the history list + for entries containing a string. +* Managing the History File:: Functions that read and write a file + containing the history list. +* History Expansion:: Functions to perform csh-like history + expansion. +@end menu + +@node Initializing History and State Management +@subsection Initializing History and State Management + +This section describes functions used to initialize and manage +the state of the History library when you want to use the history +functions in your program. + +@deftypefun void using_history () +Begin a session in which the history functions might be used. This +initializes the interactive variables. +@end deftypefun + +@deftypefun {HISTORY_STATE *} history_get_history_state () +Return a structure describing the current state of the input history. +@end deftypefun + +@deftypefun void history_set_history_state (HISTORY_STATE *state) +Set the state of the history list according to @var{state}. +@end deftypefun + +@node History List Management +@subsection History List Management + +These functions manage individual entries on the history list, or set +parameters managing the list itself. + +@deftypefun void add_history (char *string) +Place @var{string} at the end of the history list. The associated data +field (if any) is set to @code{NULL}. +@end deftypefun + +@deftypefun {HIST_ENTRY *} remove_history (int which) +Remove history entry at offset @var{which} from the history. The +removed element is returned so you can free the line, data, +and containing structure. +@end deftypefun + +@deftypefun {HIST_ENTRY *} replace_history_entry (int which, char *line, char *data) +Make the history entry at offset @var{which} have @var{line} and @var{data}. +This returns the old entry so you can dispose of the data. In the case +of an invalid @var{which}, a @code{NULL} pointer is returned. +@end deftypefun + +@deftypefun void stifle_history (int max) +Stifle the history list, remembering only the last @var{max} entries. +@end deftypefun + +@deftypefun int unstifle_history () +Stop stifling the history. This returns the previous amount the +history was stifled. The value is positive if the history was +stifled, negative if it wasn't. +@end deftypefun + +@deftypefun int history_is_stifled () +Returns non-zero if the history is stifled, zero if it is not. +@end deftypefun + +@node Information About the History List +@subsection Information About the History List + +These functions return information about the entire history list or +individual list entries. + +@deftypefun {HIST_ENTRY **} history_list () +Return a @code{NULL} terminated array of @code{HIST_ENTRY} which is the +current input history. Element 0 of this list is the beginning of time. +If there is no history, return @code{NULL}. +@end deftypefun + +@deftypefun int where_history () +Returns the offset of the current history element. +@end deftypefun + +@deftypefun {HIST_ENTRY *} current_history () +Return the history entry at the current position, as determined by +@code{where_history ()}. If there is no entry there, return a @code{NULL} +pointer. +@end deftypefun + +@deftypefun {HIST_ENTRY *} history_get (int offset) +Return the history entry at position @var{offset}, starting from +@code{history_base}. If there is no entry there, or if @var{offset} +is greater than the history length, return a @code{NULL} pointer. +@end deftypefun + +@deftypefun int history_total_bytes () +Return the number of bytes that the primary history entries are using. +This function returns the sum of the lengths of all the lines in the +history. +@end deftypefun + +@node Moving Around the History List +@subsection Moving Around the History List + +These functions allow the current index into the history list to be +set or changed. + +@deftypefun int history_set_pos (int pos) +Set the position in the history list to @var{pos}, an absolute index +into the list. +@end deftypefun + +@deftypefun {HIST_ENTRY *} previous_history () +Back up the current history offset to the previous history entry, and +return a pointer to that entry. If there is no previous entry, return +a @code{NULL} pointer. +@end deftypefun + +@deftypefun {HIST_ENTRY *} next_history () +Move the current history offset forward to the next history entry, and +return the a pointer to that entry. If there is no next entry, return +a @code{NULL} pointer. +@end deftypefun + +@node Searching the History List +@subsection Searching the History List +@cindex History Searching + +These functions allow searching of the history list for entries containing +a specific string. Searching may be performed both forward and backward +from the current history position. The search may be @dfn{anchored}, +meaning that the string must match at the beginning of the history entry. +@cindex anchored search + +@deftypefun int history_search (char *string, int direction) +Search the history for @var{string}, starting at the current history +offset. If @var{direction} < 0, then the search is through previous entries, +else through subsequent. If @var{string} is found, then +the current history index is set to that history entry, and the value +returned is the offset in the line of the entry where +@var{string} was found. Otherwise, nothing is changed, and a -1 is +returned. +@end deftypefun + +@deftypefun int history_search_prefix (char *string, int direction) +Search the history for @var{string}, starting at the current history +offset. The search is anchored: matching lines must begin with +@var{string}. If @var{direction} < 0, then the search is through previous +entries, else through subsequent. If @var{string} is found, then the +current history index is set to that entry, and the return value is 0. +Otherwise, nothing is changed, and a -1 is returned. +@end deftypefun + +@deftypefun int history_search_pos (char *string, int direction, int pos) +Search for @var{string} in the history list, starting at @var{pos}, an +absolute index into the list. If @var{direction} is negative, the search +proceeds backward from @var{pos}, otherwise forward. Returns the absolute +index of the history element where @var{string} was found, or -1 otherwise. +@end deftypefun + +@node Managing the History File +@subsection Managing the History File + +The History library can read the history from and write it to a file. +This section documents the functions for managing a history file. + +@deftypefun int read_history (char *filename) +Add the contents of @var{filename} to the history list, a line at a +time. If @var{filename} is @code{NULL}, then read from +@file{~/.history}. Returns 0 if successful, or errno if not. +@end deftypefun + +@deftypefun int read_history_range (char *filename, int from, int to) +Read a range of lines from @var{filename}, adding them to the history list. +Start reading at line @var{from} and end at @var{to}. If +@var{from} is zero, start at the beginning. If @var{to} is less than +@var{from}, then read until the end of the file. If @var{filename} is +@code{NULL}, then read from @file{~/.history}. Returns 0 if successful, +or @code{errno} if not. +@end deftypefun + +@deftypefun int write_history (char *filename) +Write the current history to @var{filename}, overwriting @var{filename} +if necessary. If @var{filename} is +@code{NULL}, then write the history list to @file{~/.history}. Values +returned are as in @code{read_history ()}. +@end deftypefun + +@deftypefun int append_history (int nelements, char *filename) +Append the last @var{nelements} of the history list to @var{filename}. +@end deftypefun + +@deftypefun int history_truncate_file (char *filename, int nlines) +Truncate the history file @var{filename}, leaving only the last +@var{nlines} lines. +@end deftypefun + +@node History Expansion +@subsection History Expansion + +These functions implement @code{csh}-like history expansion. + +@deftypefun int history_expand (char *string, char **output) +Expand @var{string}, placing the result into @var{output}, a pointer +to a string (@pxref{History Interaction}). Returns: +@table @code +@item 0 +If no expansions took place (or, if the only change in +the text was the de-slashifying of the history expansion +character); +@item 1 +if expansions did take place; +@item -1 +if there was an error in expansion; +@item 2 +if the returned line should only be displayed, but not executed, +as with the @code{:p} modifier (@pxref{Modifiers}). +@end table + +If an error ocurred in expansion, then @var{output} contains a descriptive +error message. +@end deftypefun + +@deftypefun {char *} history_arg_extract (int first, int last, char *string) +Extract a string segment consisting of the @var{first} through @var{last} +arguments present in @var{string}. Arguments are broken up as in Bash. +@end deftypefun + +@deftypefun {char *} get_history_event (char *string, int *cindex, int qchar) +Returns the text of the history event beginning at @var{string} + +@var{*cindex}. @var{*cindex} is modified to point to after the event +specifier. At function entry, @var{cindex} points to the index into +@var{string} where the history event specification begins. @var{qchar} +is a character that is allowed to end the event specification in addition +to the ``normal'' terminating characters. +@end deftypefun + +@deftypefun {char **} history_tokenize (char *string) +Return an array of tokens parsed out of @var{string}, much as the +shell might. The tokens are split on white space and on the +characters @code{()<>;&|$}, and shell quoting conventions are +obeyed. +@end deftypefun + +@node History Variables +@section History Variables + +This section describes the externally visible variables exported by +the GNU History Library. + +@deftypevar int history_base +The logical offset of the first entry in the history list. +@end deftypevar + +@deftypevar int history_length +The number of entries currently stored in the history list. +@end deftypevar + +@deftypevar int max_input_history +The maximum number of history entries. This must be changed using +@code{stifle_history ()}. +@end deftypevar + +@deftypevar char history_expansion_char +The character that starts a history event. The default is @samp{!}. +@end deftypevar + +@deftypevar char history_subst_char +The character that invokes word substitution if found at the start of +a line. The default is @samp{^}. +@end deftypevar + +@deftypevar char history_comment_char +During tokenization, if this character is seen as the first character +of a word, then it and all subsequent characters up to a newline are +ignored, suppressing history expansion for the remainder of the line. +This is disabled by default. +@end deftypevar + +@deftypevar {char *} history_no_expand_chars +The list of characters which inhibit history expansion if found immediately +following @var{history_expansion_char}. The default is whitespace and +@samp{=}. +@end deftypevar + +@node History Programming Example +@section History Programming Example + +The following program demonstrates simple use of the GNU History Library. + +@smallexample +main () +@{ + char line[1024], *t; + int len, done = 0; + + line[0] = 0; + + using_history (); + while (!done) + @{ + printf ("history$ "); + fflush (stdout); + t = fgets (line, sizeof (line) - 1, stdin); + if (t && *t) + @{ + len = strlen (t); + if (t[len - 1] == '\n') + t[len - 1] = '\0'; + @} + + if (!t) + strcpy (line, "quit"); + + if (line[0]) + @{ + char *expansion; + int result; + + result = history_expand (line, &expansion); + if (result) + fprintf (stderr, "%s\n", expansion); + + if (result < 0 || result == 2) + @{ + free (expansion); + continue; + @} + + add_history (expansion); + strncpy (line, expansion, sizeof (line) - 1); + free (expansion); + @} + + if (strcmp (line, "quit") == 0) + done = 1; + else if (strcmp (line, "save") == 0) + write_history ("history_file"); + else if (strcmp (line, "read") == 0) + read_history ("history_file"); + else if (strcmp (line, "list") == 0) + @{ + register HIST_ENTRY **the_list; + register int i; + + the_list = history_list (); + if (the_list) + for (i = 0; the_list[i]; i++) + printf ("%d: %s\n", i + history_base, the_list[i]->line); + @} + else if (strncmp (line, "delete", 6) == 0) + @{ + int which; + if ((sscanf (line + 6, "%d", &which)) == 1) + @{ + HIST_ENTRY *entry = remove_history (which); + if (!entry) + fprintf (stderr, "No such entry %d\n", which); + else + @{ + free (entry->line); + free (entry); + @} + @} + else + @{ + fprintf (stderr, "non-numeric arg given to `delete'\n"); + @} + @} + @} +@} +@end smallexample
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/doc/hsuser.texinfo Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,198 @@ +@ignore +This file documents the user interface to the GNU History library. + +Copyright (C) 1988, 1991 Free Software Foundation, Inc. +Authored by Brian Fox and Chet Ramey. + +Permission is granted to make and distribute verbatim copies of this manual +provided the copyright notice and this permission notice are preserved on +all copies. + +Permission is granted to process this file through Tex and print the +results, provided the printed document carries copying permission notice +identical to this one except for the removal of this paragraph (this +paragraph not being relevant to the printed manual). + +Permission is granted to copy and distribute modified versions of this +manual under the conditions for verbatim copying, provided also that the +GNU Copyright statement is available to the distributee, and provided that +the entire resulting derived work is distributed under the terms of a +permission notice identical to this one. + +Permission is granted to copy and distribute translations of this manual +into another language, under the above conditions for modified versions. +@end ignore + +@node Using History Interactively +@chapter Using History Interactively + +@ifset BashFeatures +This chapter describes how to use the GNU History Library interactively, +from a user's standpoint. It should be considered a user's guide. For +information on using the GNU History Library in your own programs, +see the GNU Readline Library Manual. +@end ifset +@ifclear BashFeatures +This chapter describes how to use the GNU History Library interactively, +from a user's standpoint. It should be considered a user's guide. For +information on using the GNU History Library in your own programs, +@pxref{Programming with GNU History}. +@end ifclear + +@menu +* History Interaction:: What it feels like using History as a user. +@end menu + +@node History Interaction +@section History Interaction +@cindex expansion + +The History library provides a history expansion feature that is similar +to the history expansion provided by @code{csh}. The following text +describes the syntax used to manipulate the history information. + +History expansion takes place in two parts. The first is to determine +which line from the previous history should be used during substitution. +The second is to select portions of that line for inclusion into the +current one. The line selected from the previous history is called the +@dfn{event}, and the portions of that line that are acted upon are +called @dfn{words}. The line is broken into words in the same fashion +that Bash does, so that several English (or Unix) words +surrounded by quotes are considered as one word. + +@menu +* Event Designators:: How to specify which history line to use. +* Word Designators:: Specifying which words are of interest. +* Modifiers:: Modifying the results of substitution. +@end menu + +@node Event Designators +@subsection Event Designators +@cindex event designators + +An event designator is a reference to a command line entry in the +history list. +@cindex history events + +@table @asis + +@item @code{!} +Start a history substitution, except when followed by a space, tab, +the end of the line, @key{=} or @key{(}. + +@item @code{!!} +Refer to the previous command. This is a synonym for @code{!-1}. + +@item @code{!n} +Refer to command line @var{n}. + +@item @code{!-n} +Refer to the command @var{n} lines back. + +@item @code{!string} +Refer to the most recent command starting with @var{string}. + +@item @code{!?string}[@code{?}] +Refer to the most recent command containing @var{string}. + +@item @code{!#} +The entire command line typed so far. + +@item @code{^string1^string2^} +Quick Substitution. Repeat the last command, replacing @var{string1} +with @var{string2}. Equivalent to +@code{!!:s/string1/string2/}. + +@end table + +@node Word Designators +@subsection Word Designators + +A @key{:} separates the event specification from the word designator. It +can be omitted if the word designator begins with a @key{^}, @key{$}, +@key{*} or @key{%}. Words are numbered from the beginning of the line, +with the first word being denoted by a 0 (zero). + +@table @code + +@item 0 (zero) +The @code{0}th word. For many applications, this is the command word. + +@item n +The @var{n}th word. + +@item ^ +The first argument; that is, word 1. + +@item $ +The last argument. + +@item % +The word matched by the most recent @code{?string?} search. + +@item x-y +A range of words; @code{-@var{y}} abbreviates @code{0-@var{y}}. + +@item * +All of the words, except the @code{0}th. This is a synonym for @code{1-$}. +It is not an error to use @key{*} if there is just one word in the event; +the empty string is returned in that case. + +@item x* +Abbreviates @code{x-$} + +@item x- +Abbreviates @code{x-$} like @code{x*}, but omits the last word. + +@end table + +@node Modifiers +@subsection Modifiers + +After the optional word designator, you can add a sequence of one or more +of the following modifiers, each preceded by a @key{:}. + +@table @code + +@item h +Remove a trailing pathname component, leaving only the head. + +@item r +Remove a trailing suffix of the form @samp{.}@var{suffix}, leaving the basename. + +@item e +Remove all but the trailing suffix. + +@item t +Remove all leading pathname components, leaving the tail. + +@item p +Print the new command but do not execute it. + +@ifset BashFeatures +@item q +Quote the substituted words, escaping further substitutions. + +@item x +Quote the substituted words as with @code{q}, +but break into words at spaces, tabs, and newlines. +@end ifset + +@item s/old/new/ +Substitute @var{new} for the first occurrence of @var{old} in the +event line. Any delimiter may be used in place of @key{/}. +The delimiter may be quoted in @var{old} and @var{new} +with a single backslash. If @key{&} appears in @var{new}, +it is replaced by @var{old}. A single backslash will quote +the @key{&}. The final delimiter is optional if it is the last +character on the input line. + +@item & +Repeat the previous substitution. + +@item g +Cause changes to be applied over the entire event line. Used in +conjunction with @code{s}, as in @code{gs/old/new/}, or with +@code{&}. + +@end table
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/doc/rlman.texinfo Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,111 @@ +\input texinfo @c -*-texinfo-*- +@comment %**start of header (This is for running Texinfo on a region.) +@setfilename readline.info +@settitle GNU Readline Library +@comment %**end of header (This is for running Texinfo on a region.) +@synindex vr fn +@setchapternewpage odd + +@ignore +last change: Thu Jul 21 16:02:40 EDT 1994 +@end ignore + +@set EDITION 2.0 +@set VERSION 2.0 +@set UPDATED 21 July 1994 +@set UPDATE-MONTH July 1994 + +@ifinfo +This document describes the GNU Readline Library, a utility which aids +in the consistency of user interface across discrete programs that need +to provide a command line interface. + +Copyright (C) 1988, 1991 Free Software Foundation, Inc. + +Permission is granted to make and distribute verbatim copies of +this manual provided the copyright notice and this permission notice +pare preserved on all copies. + +@ignore +Permission is granted to process this file through TeX and print the +results, provided the printed document carries copying permission +notice identical to this one except for the removal of this paragraph +(this paragraph not being relevant to the printed manual). +@end ignore + +Permission is granted to copy and distribute modified versions of this +manual under the conditions for verbatim copying, provided that the entire +resulting derived work is distributed under the terms of a permission +notice identical to this one. + +Permission is granted to copy and distribute translations of this manual +into another language, under the above conditions for modified versions, +except that this permission notice may be stated in a translation approved +by the Foundation. +@end ifinfo + +@titlepage +@sp 10 +@title GNU Readline Library +@subtitle Edition @value{EDITION}, for @code{Readline Library} Version @value{VERSION}. +@subtitle @value{UPDATE-MONTH} +@author Brian Fox, Free Software Foundation +@author Chet Ramey, Case Western Reserve University + +@page +This document describes the GNU Readline Library, a utility which aids +in the consistency of user interface across discrete programs that need +to provide a command line interface. + +Published by the Free Software Foundation @* +675 Massachusetts Avenue, @* +Cambridge, MA 02139 USA + +Permission is granted to make and distribute verbatim copies of +this manual provided the copyright notice and this permission notice +are preserved on all copies. + +Permission is granted to copy and distribute modified versions of this +manual under the conditions for verbatim copying, provided that the entire +resulting derived work is distributed under the terms of a permission +notice identical to this one. + +Permission is granted to copy and distribute translations of this manual +into another language, under the above conditions for modified versions, +except that this permission notice may be stated in a translation approved +by the Foundation. + +@vskip 0pt plus 1filll +Copyright @copyright{} 1989, 1991 Free Software Foundation, Inc. +@end titlepage + +@ifinfo +@node Top +@top GNU Readline Library + +This document describes the GNU Readline Library, a utility which aids +in the consistency of user interface across discrete programs that need +to provide a command line interface. + +@menu +* Command Line Editing:: GNU Readline User's Manual. +* Programming with GNU Readline:: GNU Readline Programmer's Manual. +* Concept Index:: Index of concepts described in this manual. +* Function and Variable Index:: Index of externally visible functions + and variables. +@end menu +@end ifinfo + +@include rluser.texinfo +@include rltech.texinfo + +@node Concept Index +@unnumbered Concept Index +@printindex cp + +@node Function and Variable Index +@unnumbered Function and Variable Index +@printindex fn + +@contents +@bye
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/doc/rltech.texinfo Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,1406 @@ +@comment %**start of header (This is for running Texinfo on a region.) +@setfilename rltech.info +@comment %**end of header (This is for running Texinfo on a region.) +@setchapternewpage odd + +@ifinfo +This document describes the GNU Readline Library, a utility for aiding +in the consitency of user interface across discrete programs that need +to provide a command line interface. + +Copyright (C) 1988, 1994 Free Software Foundation, Inc. + +Permission is granted to make and distribute verbatim copies of +this manual provided the copyright notice and this permission notice +pare preserved on all copies. + +@ignore +Permission is granted to process this file through TeX and print the +results, provided the printed document carries copying permission +notice identical to this one except for the removal of this paragraph +(this paragraph not being relevant to the printed manual). +@end ignore + +Permission is granted to copy and distribute modified versions of this +manual under the conditions for verbatim copying, provided that the entire +resulting derived work is distributed under the terms of a permission +notice identical to this one. + +Permission is granted to copy and distribute translations of this manual +into another language, under the above conditions for modified versions, +except that this permission notice may be stated in a translation approved +by the Foundation. +@end ifinfo + +@node Programming with GNU Readline +@chapter Programming with GNU Readline + +This chapter describes the interface between the GNU Readline Library and +other programs. If you are a programmer, and you wish to include the +features found in GNU Readline +such as completion, line editing, and interactive history manipulation +in your own programs, this section is for you. + +@menu +* Basic Behavior:: Using the default behavior of Readline. +* Custom Functions:: Adding your own functions to Readline. +* Readline Variables:: Variables accessible to custom + functions. +* Readline Convenience Functions:: Functions which Readline supplies to + aid in writing your own +* Custom Completers:: Supplanting or supplementing Readline's + completion functions. +@end menu + +@node Basic Behavior +@section Basic Behavior + +Many programs provide a command line interface, such as @code{mail}, +@code{ftp}, and @code{sh}. For such programs, the default behaviour of +Readline is sufficient. This section describes how to use Readline in +the simplest way possible, perhaps to replace calls in your code to +@code{gets()} or @code{fgets ()}. + +@findex readline +@cindex readline, function +The function @code{readline ()} prints a prompt and then reads and returns +a single line of text from the user. The line @code{readline} +returns is allocated with @code{malloc ()}; you should @code{free ()} +the line when you are done with it. The declaration for @code{readline} +in ANSI C is + +@example +@code{char *readline (char *@var{prompt});} +@end example + +@noindent +So, one might say +@example +@code{char *line = readline ("Enter a line: ");} +@end example +@noindent +in order to read a line of text from the user. +The line returned has the final newline removed, so only the +text remains. + +If @code{readline} encounters an @code{EOF} while reading the line, and the +line is empty at that point, then @code{(char *)NULL} is returned. +Otherwise, the line is ended just as if a newline had been typed. + +If you want the user to be able to get at the line later, (with +@key{C-p} for example), you must call @code{add_history ()} to save the +line away in a @dfn{history} list of such lines. + +@example +@code{add_history (line)}; +@end example + +@noindent +For full details on the GNU History Library, see the associated manual. + +It is preferable to avoid saving empty lines on the history list, since +users rarely have a burning need to reuse a blank line. Here is +a function which usefully replaces the standard @code{gets ()} library +function, and has the advantage of no static buffer to overflow: + +@example +/* A static variable for holding the line. */ +static char *line_read = (char *)NULL; + +/* Read a string, and return a pointer to it. Returns NULL on EOF. */ +char * +rl_gets () +@{ + /* If the buffer has already been allocated, return the memory + to the free pool. */ + if (line_read) + @{ + free (line_read); + line_read = (char *)NULL; + @} + + /* Get a line from the user. */ + line_read = readline (""); + + /* If the line has any text in it, save it on the history. */ + if (line_read && *line_read) + add_history (line_read); + + return (line_read); +@} +@end example + +This function gives the user the default behaviour of @key{TAB} +completion: completion on file names. If you do not want Readline to +complete on filenames, you can change the binding of the @key{TAB} key +with @code{rl_bind_key ()}. + +@example +@code{int rl_bind_key (int @var{key}, int (*@var{function})());} +@end example + +@code{rl_bind_key ()} takes two arguments: @var{key} is the character that +you want to bind, and @var{function} is the address of the function to +call when @var{key} is pressed. Binding @key{TAB} to @code{rl_insert ()} +makes @key{TAB} insert itself. +@code{rl_bind_key ()} returns non-zero if @var{key} is not a valid +ASCII character code (between 0 and 255). + +Thus, to disable the default @key{TAB} behavior, the following suffices: +@example +@code{rl_bind_key ('\t', rl_insert);} +@end example + +This code should be executed once at the start of your program; you +might write a function called @code{initialize_readline ()} which +performs this and other desired initializations, such as installing +custom completers (@pxref{Custom Completers}). + +@node Custom Functions +@section Custom Functions + +Readline provides many functions for manipulating the text of +the line, but it isn't possible to anticipate the needs of all +programs. This section describes the various functions and variables +defined within the Readline library which allow a user program to add +customized functionality to Readline. + +@menu +* The Function Type:: C declarations to make code readable. +* Function Writing:: Variables and calling conventions. +@end menu + +@node The Function Type +@subsection The Function Type + +For readabilty, we declare a new type of object, called +@dfn{Function}. A @code{Function} is a C function which +returns an @code{int}. The type declaration for @code{Function} is: + +@noindent +@code{typedef int Function ();} + +The reason for declaring this new type is to make it easier to write +code describing pointers to C functions. Let us say we had a variable +called @var{func} which was a pointer to a function. Instead of the +classic C declaration + +@code{int (*)()func;} + +@noindent +we may write + +@code{Function *func;} + +@noindent +Similarly, there are + +@example +typedef void VFunction (); +typedef char *CPFunction (); @r{and} +typedef char **CPPFunction (); +@end example + +@noindent +for functions returning no value, @code{pointer to char}, and +@code{pointer to pointer to char}, respectively. + +@node Function Writing +@subsection Writing a New Function + +In order to write new functions for Readline, you need to know the +calling conventions for keyboard-invoked functions, and the names of the +variables that describe the current state of the line read so far. + +The calling sequence for a command @code{foo} looks like + +@example +@code{foo (int count, int key)} +@end example + +@noindent +where @var{count} is the numeric argument (or 1 if defaulted) and +@var{key} is the key that invoked this function. + +It is completely up to the function as to what should be done with the +numeric argument. Some functions use it as a repeat count, some +as a flag, and others to choose alternate behavior (refreshing the current +line as opposed to refreshing the screen, for example). Some choose to +ignore it. In general, if a +function uses the numeric argument as a repeat count, it should be able +to do something useful with both negative and positive arguments. +At the very least, it should be aware that it can be passed a +negative argument. + +@node Readline Variables +@section Readline Variables + +These variables are available to function writers. + +@deftypevar {char *} rl_line_buffer +This is the line gathered so far. You are welcome to modify the +contents of the line, but see @ref{Allowing Undoing}. +@end deftypevar + +@deftypevar int rl_point +The offset of the current cursor position in @code{rl_line_buffer} +(the @emph{point}). +@end deftypevar + +@deftypevar int rl_end +The number of characters present in @code{rl_line_buffer}. When +@code{rl_point} is at the end of the line, @code{rl_point} and +@code{rl_end} are equal. +@end deftypevar + +@deftypevar int rl_mark +The mark (saved position) in the current line. If set, the mark +and point define a @emph{region}. +@end deftypevar + +@deftypevar int rl_done +Setting this to a non-zero value causes Readline to return the current +line immediately. +@end deftypevar + +@deftypevar int rl_pending_input +Setting this to a value makes it the next keystroke read. This is a +way to stuff a single character into the input stream. +@end deftypevar + +@deftypevar {char *} rl_prompt +The prompt Readline uses. This is set from the argument to +@code{readline ()}, and should not be assigned to directly. +@end deftypevar + +@deftypevar {char *} rl_terminal_name +The terminal type, used for initialization. +@end deftypevar + +@deftypevar {char *} rl_readline_name +This variable is set to a unique name by each application using Readline. +The value allows conditional parsing of the inputrc file +(@pxref{Conditional Init Constructs}). +@end deftypevar + +@deftypevar {FILE *} rl_instream +The stdio stream from which Readline reads input. +@end deftypevar + +@deftypevar {FILE *} rl_outstream +The stdio stream to which Readline performs output. +@end deftypevar + +@deftypevar {Function *} rl_startup_hook +If non-zero, this is the address of a function to call just +before @code{readline} prints the first prompt. +@end deftypevar + +@deftypevar {Function *} rl_event_hook +If non-zero, this is the address of a function to call periodically +when readline is waiting for terminal input. +@end deftypevar + +@node Readline Convenience Functions +@section Readline Convenience Functions + +@menu +* Function Naming:: How to give a function you write a name. +* Keymaps:: Making keymaps. +* Binding Keys:: Changing Keymaps. +* Associating Function Names and Bindings:: Translate function names to + key sequences. +* Allowing Undoing:: How to make your functions undoable. +* Redisplay:: Functions to control line display. +* Modifying Text:: Functions to modify @code{rl_line_buffer}. +* Utility Functions:: Generally useful functions and hooks. +@end menu + +@node Function Naming +@subsection Naming a Function + +The user can dynamically change the bindings of keys while using +Readline. This is done by representing the function with a descriptive +name. The user is able to type the descriptive name when referring to +the function. Thus, in an init file, one might find + +@example +Meta-Rubout: backward-kill-word +@end example + +This binds the keystroke @key{Meta-Rubout} to the function +@emph{descriptively} named @code{backward-kill-word}. You, as the +programmer, should bind the functions you write to descriptive names as +well. Readline provides a function for doing that: + +@deftypefun int rl_add_defun (char *name, Function *function, int key) +Add @var{name} to the list of named functions. Make @var{function} be +the function that gets called. If @var{key} is not -1, then bind it to +@var{function} using @code{rl_bind_key ()}. +@end deftypefun + +Using this function alone is sufficient for most applications. It is +the recommended way to add a few functions to the default functions that +Readline has built in. If you need to do something other +than adding a function to Readline, you may need to use the +underlying functions described below. + +@node Keymaps +@subsection Selecting a Keymap + +Key bindings take place on a @dfn{keymap}. The keymap is the +association between the keys that the user types and the functions that +get run. You can make your own keymaps, copy existing keymaps, and tell +Readline which keymap to use. + +@deftypefun Keymap rl_make_bare_keymap () +Returns a new, empty keymap. The space for the keymap is allocated with +@code{malloc ()}; you should @code{free ()} it when you are done. +@end deftypefun + +@deftypefun Keymap rl_copy_keymap (Keymap map) +Return a new keymap which is a copy of @var{map}. +@end deftypefun + +@deftypefun Keymap rl_make_keymap () +Return a new keymap with the printing characters bound to rl_insert, +the lowercase Meta characters bound to run their equivalents, and +the Meta digits bound to produce numeric arguments. +@end deftypefun + +@deftypefun void rl_discard_keymap (Keymap keymap) +Free the storage associated with @var{keymap}. +@end deftypefun + +Readline has several internal keymaps. These functions allow you to +change which keymap is active. + +@deftypefun Keymap rl_get_keymap () +Returns the currently active keymap. +@end deftypefun + +@deftypefun void rl_set_keymap (Keymap keymap) +Makes @var{keymap} the currently active keymap. +@end deftypefun + +@deftypefun Keymap rl_get_keymap_by_name (char *name) +Return the keymap matching @var{name}. @var{name} is one which would +be supplied in a @code{set keymap} inputrc line (@pxref{Readline Init File}). +@end deftypefun + +@node Binding Keys +@subsection Binding Keys + +You associate keys with functions through the keymap. Readline has +several internal keymaps: @code{emacs_standard_keymap}, +@code{emacs_meta_keymap}, @code{emacs_ctlx_keymap}, +@code{vi_movement_keymap}, and @code{vi_insertion_keymap}. +@code{emacs_standard_keymap} is the default, and the examples in +this manual assume that. + +These functions manage key bindings. + +@deftypefun int rl_bind_key (int key, Function *function) +Binds @var{key} to @var{function} in the currently active keymap. +Returns non-zero in the case of an invalid @var{key}. +@end deftypefun + +@deftypefun int rl_bind_key_in_map (int key, Function *function, Keymap map) +Bind @var{key} to @var{function} in @var{map}. Returns non-zero in the case +of an invalid @var{key}. +@end deftypefun + +@deftypefun int rl_unbind_key (int key) +Bind @var{key} to the null function in the currently active keymap. +Returns non-zero in case of error. +@end deftypefun + +@deftypefun int rl_unbind_key_in_map (int key, Keymap map) +Bind @var{key} to the null function in @var{map}. +Returns non-zero in case of error. +@end deftypefun + +@deftypefun int rl_generic_bind (int type, char *keyseq, char *data, Keymap map) +Bind the key sequence represented by the string @var{keyseq} to the arbitrary +pointer @var{data}. @var{type} says what kind of data is pointed to by +@var{data}; this can be a function (@code{ISFUNC}), a macro +(@code{ISMACR}), or a keymap (@code{ISKMAP}). This makes new keymaps as +necessary. The initial keymap in which to do bindings is @var{map}. +@end deftypefun + +@deftypefun int rl_parse_and_bind (char *line) +Parse @var{line} as if it had been read from the @code{inputrc} file and +perform any key bindings and variable assignments found +(@pxref{Readline Init File}). +@end deftypefun + +@deftypefun int rl_read_init_file (char *filename) +Read keybindings and variable assignments from @var{filename} +(@pxref{Readline Init File}). +@end deftypefun + +@node Associating Function Names and Bindings +@subsection Associating Function Names and Bindings + +These functions allow you to find out what keys invoke named functions +and the functions invoked by a particular key sequence. + +@deftypefun {Function *} rl_named_function (char *name) +Return the function with name @var{name}. +@end deftypefun + +@deftypefun {Function *} rl_function_of_keyseq (char *keyseq, Keymap map, int *type) +Return the function invoked by @var{keyseq} in keymap @var{map}. +If @var{map} is NULL, the current keymap is used. If @var{type} is +not NULL, the type of the object is returned in it (one of @code{ISFUNC}, +@code{ISKMAP}, or @code{ISMACR}). +@end deftypefun + +@deftypefun {char **} rl_invoking_keyseqs (Function *function) +Return an array of strings representing the key sequences used to +invoke @var{function} in the current keymap. +@end deftypefun + +@deftypefun {char **} rl_invoking_keyseqs_in_map (Function *function, Keymap map) +Return an array of strings representing the key sequences used to +invoke @var{function} in the keymap @var{map}. +@end deftypefun + +@deftypefun void rl_function_dumper (int readable) +Print the readline function names and the key sequences currently +bound to them to @code{rl_outstream}. If @var{readable} is non-zero, +the list is formatted in such a way that it can be made part of an +@code{inputrc} file and re-read. +@end deftypefun + +@deftypefun void rl_list_funmap_names () +Print the names of all bindable Readline functions to @code{rl_outstream}. +@end deftypefun + +@node Allowing Undoing +@subsection Allowing Undoing + +Supporting the undo command is a painless thing, and makes your +functions much more useful. It is certainly easy to try +something if you know you can undo it. I could use an undo function for +the stock market. + +If your function simply inserts text once, or deletes text once, and +uses @code{rl_insert_text ()} or @code{rl_delete_text ()} to do it, then +undoing is already done for you automatically. + +If you do multiple insertions or multiple deletions, or any combination +of these operations, you should group them together into one operation. +This is done with @code{rl_begin_undo_group ()} and +@code{rl_end_undo_group ()}. + +The types of events that can be undone are: + +@example +enum undo_code @{ UNDO_DELETE, UNDO_INSERT, UNDO_BEGIN, UNDO_END @}; +@end example + +Notice that @code{UNDO_DELETE} means to insert some text, and +@code{UNDO_INSERT} means to delete some text. That is, the undo code +tells undo what to undo, not how to undo it. @code{UNDO_BEGIN} and +@code{UNDO_END} are tags added by @code{rl_begin_undo_group ()} and +@code{rl_end_undo_group ()}. + +@deftypefun int rl_begin_undo_group () +Begins saving undo information in a group construct. The undo +information usually comes from calls to @code{rl_insert_text ()} and +@code{rl_delete_text ()}, but could be the result of calls to +@code{rl_add_undo ()}. +@end deftypefun + +@deftypefun int rl_end_undo_group () +Closes the current undo group started with @code{rl_begin_undo_group +()}. There should be one call to @code{rl_end_undo_group ()} +for each call to @code{rl_begin_undo_group ()}. +@end deftypefun + +@deftypefun void rl_add_undo (enum undo_code what, int start, int end, char *text) +Remember how to undo an event (according to @var{what}). The affected +text runs from @var{start} to @var{end}, and encompasses @var{text}. +@end deftypefun + +@deftypefun void free_undo_list () +Free the existing undo list. +@end deftypefun + +@deftypefun int rl_do_undo () +Undo the first thing on the undo list. Returns @code{0} if there was +nothing to undo, non-zero if something was undone. +@end deftypefun + +Finally, if you neither insert nor delete text, but directly modify the +existing text (e.g., change its case), call @code{rl_modifying ()} +once, just before you modify the text. You must supply the indices of +the text range that you are going to modify. + +@deftypefun int rl_modifying (int start, int end) +Tell Readline to save the text between @var{start} and @var{end} as a +single undo unit. It is assumed that you will subsequently modify +that text. +@end deftypefun + +@node Redisplay +@subsection Redisplay + +@deftypefun int rl_redisplay () +Change what's displayed on the screen to reflect the current contents +of @code{rl_line_buffer}. +@end deftypefun + +@deftypefun int rl_forced_update_display () +Force the line to be updated and redisplayed, whether or not +Readline thinks the screen display is correct. +@end deftypefun + +@deftypefun int rl_on_new_line () +Tell the update routines that we have moved onto a new (empty) line, +usually after ouputting a newline. +@end deftypefun + +@deftypefun int rl_reset_line_state () +Reset the display state to a clean state and redisplay the current line +starting on a new line. +@end deftypefun + +@deftypefun int rl_message (va_alist) +The arguments are a string as would be supplied to @code{printf}. The +resulting string is displayed in the @dfn{echo area}. The echo area +is also used to display numeric arguments and search strings. +@end deftypefun + +@deftypefun int rl_clear_message () +Clear the message in the echo area. +@end deftypefun + +@node Modifying Text +@subsection Modifying Text + +@deftypefun int rl_insert_text (char *text) +Insert @var{text} into the line at the current cursor position. +@end deftypefun + +@deftypefun int rl_delete_text (int start, int end) +Delete the text between @var{start} and @var{end} in the current line. +@end deftypefun + +@deftypefun {char *} rl_copy_text (int start, int end) +Return a copy of the text between @var{start} and @var{end} in +the current line. +@end deftypefun + +@deftypefun int rl_kill_text (int start, int end) +Copy the text between @var{start} and @var{end} in the current line +to the kill ring, appending or prepending to the last kill if the +last command was a kill command. The text is deleted. +If @var{start} is less than @var{end}, +the text is appended, otherwise prepended. If the last command was +not a kill, a new kill ring slot is used. +@end deftypefun + +@node Utility Functions +@subsection Utility Functions + +@deftypefun int rl_read_key () +Return the next character available. This handles input inserted into +the input stream via @var{pending input} (@pxref{Readline Variables}) +and @code{rl_stuff_char ()}, macros, and characters read from the keyboard. +@end deftypefun + +@deftypefun int rl_stuff_char (int c) +Insert @var{c} into the Readline input stream. It will be "read" +before Readline attempts to read characters from the terminal with +@code{rl_read_key ()}. +@end deftypefun + +@deftypefun int rl_initialize () +Initialize or re-initialize Readline's internal state. +@end deftypefun + +@deftypefun int rl_reset_terminal (char *terminal_name) +Reinitialize Readline's idea of the terminal settings using +@var{terminal_name} as the terminal type (e.g., @code{vt100}). +@end deftypefun + +@deftypefun int alphabetic (int c) +Return 1 if @var{c} is an alphabetic character. +@end deftypefun + +@deftypefun int numeric (int c) +Return 1 if @var{c} is a numeric character. +@end deftypefun + +@deftypefun int ding () +Ring the terminal bell, obeying the setting of @code{bell-style}. +@end deftypefun + +The following are implemented as macros, defined in @code{chartypes.h}. + +@deftypefun int uppercase_p (int c) +Return 1 if @var{c} is an uppercase alphabetic character. +@end deftypefun + +@deftypefun int lowercase_p (int c) +Return 1 if @var{c} is a lowercase alphabetic character. +@end deftypefun + +@deftypefun int digit_p (int c) +Return 1 if @var{c} is a numeric character. +@end deftypefun + +@deftypefun int to_upper (int c) +If @var{c} is a lowercase alphabetic character, return the corresponding +uppercase character. +@end deftypefun + +@deftypefun int to_lower (int c) +If @var{c} is an uppercase alphabetic character, return the corresponding +lowercase character. +@end deftypefun + +@deftypefun int digit_value (int c) +If @var{c} is a number, return the value it represents. +@end deftypefun + +@subsection An Example + +Here is a function which changes lowercase characters to their uppercase +equivalents, and uppercase characters to lowercase. If +this function was bound to @samp{M-c}, then typing @samp{M-c} would +change the case of the character under point. Typing @samp{M-1 0 M-c} +would change the case of the following 10 characters, leaving the cursor on +the last character changed. + +@example +/* Invert the case of the COUNT following characters. */ +int +invert_case_line (count, key) + int count, key; +@{ + register int start, end, i; + + start = rl_point; + + if (rl_point >= rl_end) + return (0); + + if (count < 0) + @{ + direction = -1; + count = -count; + @} + else + direction = 1; + + /* Find the end of the range to modify. */ + end = start + (count * direction); + + /* Force it to be within range. */ + if (end > rl_end) + end = rl_end; + else if (end < 0) + end = 0; + + if (start == end) + return (0); + + if (start > end) + @{ + int temp = start; + start = end; + end = temp; + @} + + /* Tell readline that we are modifying the line, so it will save + the undo information. */ + rl_modifying (start, end); + + for (i = start; i != end; i++) + @{ + if (uppercase_p (rl_line_buffer[i])) + rl_line_buffer[i] = to_lower (rl_line_buffer[i]); + else if (lowercase_p (rl_line_buffer[i])) + rl_line_buffer[i] = to_upper (rl_line_buffer[i]); + @} + /* Move point to on top of the last character changed. */ + rl_point = (direction == 1) ? end - 1 : start; + return (0); +@} +@end example + +@node Custom Completers +@section Custom Completers + +Typically, a program that reads commands from the user has a way of +disambiguating commands and data. If your program is one of these, then +it can provide completion for commands, data, or both. +The following sections describe how your program and Readline +cooperate to provide this service. + +@menu +* How Completing Works:: The logic used to do completion. +* Completion Functions:: Functions provided by Readline. +* Completion Variables:: Variables which control completion. +* A Short Completion Example:: An example of writing completer subroutines. +@end menu + +@node How Completing Works +@subsection How Completing Works + +In order to complete some text, the full list of possible completions +must be available. That is, it is not possible to accurately +expand a partial word without knowing all of the possible words +which make sense in that context. The Readline library provides +the user interface to completion, and two of the most common +completion functions: filename and username. For completing other types +of text, you must write your own completion function. This section +describes exactly what such functions must do, and provides an example. + +There are three major functions used to perform completion: + +@enumerate +@item +The user-interface function @code{rl_complete ()}. This function is +called with the same arguments as other Readline +functions intended for interactive use: @var{count} and +@var{invoking_key}. It isolates the word to be completed and calls +@code{completion_matches ()} to generate a list of possible completions. +It then either lists the possible completions, inserts the possible +completions, or actually performs the +completion, depending on which behavior is desired. + +@item +The internal function @code{completion_matches ()} uses your +@dfn{generator} function to generate the list of possible matches, and +then returns the array of these matches. You should place the address +of your generator function in @code{rl_completion_entry_function}. + +@item +The generator function is called repeatedly from +@code{completion_matches ()}, returning a string each time. The +arguments to the generator function are @var{text} and @var{state}. +@var{text} is the partial word to be completed. @var{state} is zero the +first time the function is called, allowing the generator to perform +any necessary initialization, and a positive non-zero integer for +each subsequent call. When the generator function returns +@code{(char *)NULL} this signals @code{completion_matches ()} that there are +no more possibilities left. Usually the generator function computes the +list of possible completions when @var{state} is zero, and returns them +one at a time on subsequent calls. Each string the generator function +returns as a match must be allocated with @code{malloc()}; Readline +frees the strings when it has finished with them. + +@end enumerate + +@deftypefun int rl_complete (int ignore, int invoking_key) +Complete the word at or before point. You have supplied the function +that does the initial simple matching selection algorithm (see +@code{completion_matches ()}). The default is to do filename completion. +@end deftypefun + +@deftypevar {Function *} rl_completion_entry_function +This is a pointer to the generator function for @code{completion_matches +()}. If the value of @code{rl_completion_entry_function} is +@code{(Function *)NULL} then the default filename generator function, +@code{filename_entry_function ()}, is used. +@end deftypevar + +@node Completion Functions +@subsection Completion Functions + +Here is the complete list of callable completion functions present in +Readline. + +@deftypefun int rl_complete_internal (int what_to_do) +Complete the word at or before point. @var{what_to_do} says what to do +with the completion. A value of @samp{?} means list the possible +completions. @samp{TAB} means do standard completion. @samp{*} means +insert all of the possible completions. @samp{!} means to display +all of the possible completions, if there is more than one, as well as +performing partial completion. +@end deftypefun + +@deftypefun int rl_complete (int ignore, int invoking_key) +Complete the word at or before point. You have supplied the function +that does the initial simple matching selection algorithm (see +@code{completion_matches ()} and @code{rl_completion_entry_function}). +The default is to do filename +completion. This calls @code{rl_complete_internal ()} with an +argument depending on @var{invoking_key}. +@end deftypefun + +@deftypefun int rl_possible_completions (int count, int invoking_key)) +List the possible completions. See description of @code{rl_complete +()}. This calls @code{rl_complete_internal ()} with an argument of +@samp{?}. +@end deftypefun + +@deftypefun int rl_insert_completions (int count, int invoking_key)) +Insert the list of possible completions into the line, deleting the +partially-completed word. See description of @code{rl_complete ()}. +This calls @code{rl_complete_internal ()} with an argument of @samp{*}. +@end deftypefun + +@deftypefun {char **} completion_matches (char *text, CPFunction *entry_func) +Returns an array of @code{(char *)} which is a list of completions for +@var{text}. If there are no completions, returns @code{(char **)NULL}. +The first entry in the returned array is the substitution for @var{text}. +The remaining entries are the possible completions. The array is +terminated with a @code{NULL} pointer. + +@var{entry_func} is a function of two args, and returns a +@code{(char *)}. The first argument is @var{text}. The second is a +state argument; it is zero on the first call, and non-zero on subsequent +calls. @var{entry_func} returns a @code{NULL} pointer to the caller +when there are no more matches. +@end deftypefun + +@deftypefun {char *} filename_completion_function (char *text, int state) +A generator function for filename completion in the general case. Note +that completion in Bash is a little different because of all +the pathnames that must be followed when looking up completions for a +command. The Bash source is a useful reference for writing custom +completion functions. +@end deftypefun + +@deftypefun {char *} username_completion_function (char *text, int state) +A completion generator for usernames. @var{text} contains a partial +username preceded by a random character (usually @samp{~}). As with all +completion generators, @var{state} is zero on the first call and non-zero +for subsequent calls. +@end deftypefun + +@node Completion Variables +@subsection Completion Variables + +@deftypevar {Function *} rl_completion_entry_function +A pointer to the generator function for @code{completion_matches ()}. +@code{NULL} means to use @code{filename_entry_function ()}, the default +filename completer. +@end deftypevar + +@deftypevar {CPPFunction *} rl_attempted_completion_function +A pointer to an alternative function to create matches. +The function is called with @var{text}, @var{start}, and @var{end}. +@var{start} and @var{end} are indices in @code{rl_line_buffer} saying +what the boundaries of @var{text} are. If this function exists and +returns @code{NULL}, or if this variable is set to @code{NULL}, then +@code{rl_complete ()} will call the value of +@code{rl_completion_entry_function} to generate matches, otherwise the +array of strings returned will be used. +@end deftypevar + +@deftypevar int rl_completion_query_items +Up to this many items will be displayed in response to a +possible-completions call. After that, we ask the user if she is sure +she wants to see them all. The default value is 100. +@end deftypevar + +@deftypevar {char *} rl_basic_word_break_characters +The basic list of characters that signal a break between words for the +completer routine. The default value of this variable is the characters +which break words for completion in Bash, i.e., +@code{" \t\n\"\\'`@@$><=;|&@{("}. +@end deftypevar + +@deftypevar {char *} rl_completer_word_break_characters +The list of characters that signal a break between words for +@code{rl_complete_internal ()}. The default list is the value of +@code{rl_basic_word_break_characters}. +@end deftypevar + +@deftypevar {char *} rl_completer_quote_characters +List of characters which can be used to quote a substring of the line. +Completion occurs on the entire substring, and within the substring +@code{rl_completer_word_break_characters} are treated as any other character, +unless they also appear within this list. +@end deftypevar + +@deftypevar {char *} rl_special_prefixes +The list of characters that are word break characters, but should be +left in @var{text} when it is passed to the completion function. +Programs can use this to help determine what kind of completing to do. +For instance, Bash sets this variable to "$@@" so that it can complete +shell variables and hostnames. +@end deftypevar + +@deftypevar int rl_ignore_completion_duplicates +If non-zero, then disallow duplicates in the matches. Default is 1. +@end deftypevar + +@deftypevar int rl_filename_completion_desired +Non-zero means that the results of the matches are to be treated as +filenames. This is @emph{always} zero on entry, and can only be changed +within a completion entry generator function. If it is set to a non-zero +value, directory names have a slash appended and Readline attempts to +quote completed filenames if they contain any embedded word break +characters. +@end deftypevar + +@deftypevar int rl_filename_quoting_desired +Non-zero means that the results of the matches are to be quoted using +double quotes (or an application-specific quoting mechanism) if the +completed filename contains any characters in +@code{rl_completer_word_break_chars}. This is @emph{always} non-zero +on entry, and can only be changed within a completion entry generator +function. +@end deftypevar + +@deftypevar {Function *} rl_ignore_some_completions_function +This function, if defined, is called by the completer when real filename +completion is done, after all the matching names have been generated. +It is passed a @code{NULL} terminated array of matches. +The first element (@code{matches[0]}) is the +maximal substring common to all matches. This function can +re-arrange the list of matches as required, but each element deleted +from the array must be freed. +@end deftypevar + +@deftypevar {Function *} rl_directory_completion_hook +This function, if defined, is allowed to modify the directory portion +of filenames Readline completes. It is called with the address of a +string (the current directory name) as an argument. It could be used +to expand symbolic links or shell variables in pathnames. +@end deftypevar + +@node A Short Completion Example +@subsection A Short Completion Example + +Here is a small application demonstrating the use of the GNU Readline +library. It is called @code{fileman}, and the source code resides in +@file{examples/fileman.c}. This sample application provides +completion of command names, line editing features, and access to the +history list. + +@page +@smallexample +/* fileman.c -- A tiny application which demonstrates how to use the + GNU Readline library. This application interactively allows users + to manipulate files and their modes. */ + +#include <stdio.h> +#include <sys/types.h> +#include <sys/file.h> +#include <sys/stat.h> +#include <sys/errno.h> + +#include <readline/readline.h> +#include <readline/history.h> + +extern char *getwd (); +extern char *xmalloc (); + +/* The names of functions that actually do the manipulation. */ +int com_list (), com_view (), com_rename (), com_stat (), com_pwd (); +int com_delete (), com_help (), com_cd (), com_quit (); + +/* A structure which contains information on the commands this program + can understand. */ + +typedef struct @{ + char *name; /* User printable name of the function. */ + Function *func; /* Function to call to do the job. */ + char *doc; /* Documentation for this function. */ +@} COMMAND; + +COMMAND commands[] = @{ + @{ "cd", com_cd, "Change to directory DIR" @}, + @{ "delete", com_delete, "Delete FILE" @}, + @{ "help", com_help, "Display this text" @}, + @{ "?", com_help, "Synonym for `help'" @}, + @{ "list", com_list, "List files in DIR" @}, + @{ "ls", com_list, "Synonym for `list'" @}, + @{ "pwd", com_pwd, "Print the current working directory" @}, + @{ "quit", com_quit, "Quit using Fileman" @}, + @{ "rename", com_rename, "Rename FILE to NEWNAME" @}, + @{ "stat", com_stat, "Print out statistics on FILE" @}, + @{ "view", com_view, "View the contents of FILE" @}, + @{ (char *)NULL, (Function *)NULL, (char *)NULL @} +@}; + +/* Forward declarations. */ +char *stripwhite (); +COMMAND *find_command (); + +/* The name of this program, as taken from argv[0]. */ +char *progname; + +/* When non-zero, this global means the user is done using this program. */ +int done; + +char * +dupstr (s) + int s; +@{ + char *r; + + r = xmalloc (strlen (s) + 1); + strcpy (r, s); + return (r); +@} + +main (argc, argv) + int argc; + char **argv; +@{ + char *line, *s; + + progname = argv[0]; + + initialize_readline (); /* Bind our completer. */ + + /* Loop reading and executing lines until the user quits. */ + for ( ; done == 0; ) + @{ + line = readline ("FileMan: "); + + if (!line) + break; + + /* Remove leading and trailing whitespace from the line. + Then, if there is anything left, add it to the history list + and execute it. */ + s = stripwhite (line); + + if (*s) + @{ + add_history (s); + execute_line (s); + @} + + free (line); + @} + exit (0); +@} + +/* Execute a command line. */ +int +execute_line (line) + char *line; +@{ + register int i; + COMMAND *command; + char *word; + + /* Isolate the command word. */ + i = 0; + while (line[i] && whitespace (line[i])) + i++; + word = line + i; + + while (line[i] && !whitespace (line[i])) + i++; + + if (line[i]) + line[i++] = '\0'; + + command = find_command (word); + + if (!command) + @{ + fprintf (stderr, "%s: No such command for FileMan.\n", word); + return (-1); + @} + + /* Get argument to command, if any. */ + while (whitespace (line[i])) + i++; + + word = line + i; + + /* Call the function. */ + return ((*(command->func)) (word)); +@} + +/* Look up NAME as the name of a command, and return a pointer to that + command. Return a NULL pointer if NAME isn't a command name. */ +COMMAND * +find_command (name) + char *name; +@{ + register int i; + + for (i = 0; commands[i].name; i++) + if (strcmp (name, commands[i].name) == 0) + return (&commands[i]); + + return ((COMMAND *)NULL); +@} + +/* Strip whitespace from the start and end of STRING. Return a pointer + into STRING. */ +char * +stripwhite (string) + char *string; +@{ + register char *s, *t; + + for (s = string; whitespace (*s); s++) + ; + + if (*s == 0) + return (s); + + t = s + strlen (s) - 1; + while (t > s && whitespace (*t)) + t--; + *++t = '\0'; + + return s; +@} + +/* **************************************************************** */ +/* */ +/* Interface to Readline Completion */ +/* */ +/* **************************************************************** */ + +char *command_generator (); +char **fileman_completion (); + +/* Tell the GNU Readline library how to complete. We want to try to complete + on command names if this is the first word in the line, or on filenames + if not. */ +initialize_readline () +@{ + /* Allow conditional parsing of the ~/.inputrc file. */ + rl_readline_name = "FileMan"; + + /* Tell the completer that we want a crack first. */ + rl_attempted_completion_function = (CPPFunction *)fileman_completion; +@} + +/* Attempt to complete on the contents of TEXT. START and END show the + region of TEXT that contains the word to complete. We can use the + entire line in case we want to do some simple parsing. Return the + array of matches, or NULL if there aren't any. */ +char ** +fileman_completion (text, start, end) + char *text; + int start, end; +@{ + char **matches; + + matches = (char **)NULL; + + /* If this word is at the start of the line, then it is a command + to complete. Otherwise it is the name of a file in the current + directory. */ + if (start == 0) + matches = completion_matches (text, command_generator); + + return (matches); +@} + +/* Generator function for command completion. STATE lets us know whether + to start from scratch; without any state (i.e. STATE == 0), then we + start at the top of the list. */ +char * +command_generator (text, state) + char *text; + int state; +@{ + static int list_index, len; + char *name; + + /* If this is a new word to complete, initialize now. This includes + saving the length of TEXT for efficiency, and initializing the index + variable to 0. */ + if (!state) + @{ + list_index = 0; + len = strlen (text); + @} + + /* Return the next name which partially matches from the command list. */ + while (name = commands[list_index].name) + @{ + list_index++; + + if (strncmp (name, text, len) == 0) + return (dupstr(name)); + @} + + /* If no names matched, then return NULL. */ + return ((char *)NULL); +@} + +/* **************************************************************** */ +/* */ +/* FileMan Commands */ +/* */ +/* **************************************************************** */ + +/* String to pass to system (). This is for the LIST, VIEW and RENAME + commands. */ +static char syscom[1024]; + +/* List the file(s) named in arg. */ +com_list (arg) + char *arg; +@{ + if (!arg) + arg = ""; + + sprintf (syscom, "ls -FClg %s", arg); + return (system (syscom)); +@} + +com_view (arg) + char *arg; +@{ + if (!valid_argument ("view", arg)) + return 1; + + sprintf (syscom, "more %s", arg); + return (system (syscom)); +@} + +com_rename (arg) + char *arg; +@{ + too_dangerous ("rename"); + return (1); +@} + +com_stat (arg) + char *arg; +@{ + struct stat finfo; + + if (!valid_argument ("stat", arg)) + return (1); + + if (stat (arg, &finfo) == -1) + @{ + perror (arg); + return (1); + @} + + printf ("Statistics for `%s':\n", arg); + + printf ("%s has %d link%s, and is %d byte%s in length.\n", arg, + finfo.st_nlink, + (finfo.st_nlink == 1) ? "" : "s", + finfo.st_size, + (finfo.st_size == 1) ? "" : "s"); + printf ("Inode Last Change at: %s", ctime (&finfo.st_ctime)); + printf (" Last access at: %s", ctime (&finfo.st_atime)); + printf (" Last modified at: %s", ctime (&finfo.st_mtime)); + return (0); +@} + +com_delete (arg) + char *arg; +@{ + too_dangerous ("delete"); + return (1); +@} + +/* Print out help for ARG, or for all of the commands if ARG is + not present. */ +com_help (arg) + char *arg; +@{ + register int i; + int printed = 0; + + for (i = 0; commands[i].name; i++) + @{ + if (!*arg || (strcmp (arg, commands[i].name) == 0)) + @{ + printf ("%s\t\t%s.\n", commands[i].name, commands[i].doc); + printed++; + @} + @} + + if (!printed) + @{ + printf ("No commands match `%s'. Possibilties are:\n", arg); + + for (i = 0; commands[i].name; i++) + @{ + /* Print in six columns. */ + if (printed == 6) + @{ + printed = 0; + printf ("\n"); + @} + + printf ("%s\t", commands[i].name); + printed++; + @} + + if (printed) + printf ("\n"); + @} + return (0); +@} + +/* Change to the directory ARG. */ +com_cd (arg) + char *arg; +@{ + if (chdir (arg) == -1) + @{ + perror (arg); + return 1; + @} + + com_pwd (""); + return (0); +@} + +/* Print out the current working directory. */ +com_pwd (ignore) + char *ignore; +@{ + char dir[1024], *s; + + s = getwd (dir); + if (s == 0) + @{ + printf ("Error getting pwd: %s\n", dir); + return 1; + @} + + printf ("Current directory is %s\n", dir); + return 0; +@} + +/* The user wishes to quit using this program. Just set DONE non-zero. */ +com_quit (arg) + char *arg; +@{ + done = 1; + return (0); +@} + +/* Function which tells you that you can't do this. */ +too_dangerous (caller) + char *caller; +@{ + fprintf (stderr, + "%s: Too dangerous for me to distribute. Write it yourself.\n", + caller); +@} + +/* Return non-zero if ARG is a valid argument for CALLER, else print + an error message and return zero. */ +int +valid_argument (caller, arg) + char *caller, *arg; +@{ + if (!arg || !*arg) + @{ + fprintf (stderr, "%s: Argument required.\n", caller); + return (0); + @} + + return (1); +@} +@end smallexample
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/doc/rluser.texinfo Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,875 @@ +@comment %**start of header (This is for running Texinfo on a region.) +@setfilename rluser.info +@comment %**end of header (This is for running Texinfo on a region.) +@setchapternewpage odd + +@ignore +This file documents the end user interface to the GNU command line +editing features. It is to be an appendix to manuals for programs which +use these features. There is a document entitled "readline.texinfo" +which contains both end-user and programmer documentation for the GNU +Readline Library. + +Copyright (C) 1988 Free Software Foundation, Inc. + +Authored by Brian Fox and Chet Ramey. + +Permission is granted to process this file through Tex and print the +results, provided the printed document carries copying permission notice +identical to this one except for the removal of this paragraph (this +paragraph not being relevant to the printed manual). + +Permission is granted to make and distribute verbatim copies of this manual +provided the copyright notice and this permission notice are preserved on +all copies. + +Permission is granted to copy and distribute modified versions of this +manual under the conditions for verbatim copying, provided also that the +GNU Copyright statement is available to the distributee, and provided that +the entire resulting derived work is distributed under the terms of a +permission notice identical to this one. + +Permission is granted to copy and distribute translations of this manual +into another language, under the above conditions for modified versions. +@end ignore + +@comment If you are including this manual as an appendix, then set the +@comment variable readline-appendix. + +@node Command Line Editing +@chapter Command Line Editing + +This chapter describes the basic features of the GNU +command line editing interface. + +@menu +* Introduction and Notation:: Notation used in this text. +* Readline Interaction:: The minimum set of commands for editing a line. +* Readline Init File:: Customizing Readline from a user's view. +* Bindable Readline Commands:: A description of most of the Readline commands + available for binding +* Readline vi Mode:: A short description of how to make Readline + behave like the vi editor. +@end menu + +@node Introduction and Notation +@section Introduction to Line Editing + +The following paragraphs describe the notation used to represent +keystrokes. + +The text @key{C-k} is read as `Control-K' and describes the character +produced when the Control key is depressed and the @key{k} key is struck. + +The text @key{M-k} is read as `Meta-K' and describes the character +produced when the meta key (if you have one) is depressed, and the @key{k} +key is struck. If you do not have a meta key, the identical keystroke +can be generated by typing @key{ESC} @i{first}, and then typing @key{k}. +Either process is known as @dfn{metafying} the @key{k} key. + +The text @key{M-C-k} is read as `Meta-Control-k' and describes the +character produced by @dfn{metafying} @key{C-k}. + +In addition, several keys have their own names. Specifically, +@key{DEL}, @key{ESC}, @key{LFD}, @key{SPC}, @key{RET}, and @key{TAB} all +stand for themselves when seen in this text, or in an init file +(@pxref{Readline Init File}, for more info). + +@node Readline Interaction +@section Readline Interaction +@cindex interaction, readline + +Often during an interactive session you type in a long line of text, +only to notice that the first word on the line is misspelled. The +Readline library gives you a set of commands for manipulating the text +as you type it in, allowing you to just fix your typo, and not forcing +you to retype the majority of the line. Using these editing commands, +you move the cursor to the place that needs correction, and delete or +insert the text of the corrections. Then, when you are satisfied with +the line, you simply press @key{RETURN}. You do not have to be at the +end of the line to press @key{RETURN}; the entire line is accepted +regardless of the location of the cursor within the line. + +@menu +* Readline Bare Essentials:: The least you need to know about Readline. +* Readline Movement Commands:: Moving about the input line. +* Readline Killing Commands:: How to delete text, and how to get it back! +* Readline Arguments:: Giving numeric arguments to commands. +@end menu + +@node Readline Bare Essentials +@subsection Readline Bare Essentials + +In order to enter characters into the line, simply type them. The typed +character appears where the cursor was, and then the cursor moves one +space to the right. If you mistype a character, you can use your +erase character to back up and delete the mistyped character. + +Sometimes you may miss typing a character that you wanted to type, and +not notice your error until you have typed several other characters. In +that case, you can type @key{C-b} to move the cursor to the left, and then +correct your mistake. Afterwards, you can move the cursor to the right +with @key{C-f}. + +When you add text in the middle of a line, you will notice that characters +to the right of the cursor are `pushed over' to make room for the text +that you have inserted. Likewise, when you delete text behind the cursor, +characters to the right of the cursor are `pulled back' to fill in the +blank space created by the removal of the text. A list of the basic bare +essentials for editing the text of an input line follows. + +@table @asis +@item @key{C-b} +Move back one character. +@item @key{C-f} +Move forward one character. +@item @key{DEL} +Delete the character to the left of the cursor. +@item @key{C-d} +Delete the character underneath the cursor. +@item @w{Printing characters} +Insert the character into the line at the cursor. +@item @key{C-_} +Undo the last thing that you did. You can undo all the way back to an +empty line. +@end table + +@node Readline Movement Commands +@subsection Readline Movement Commands + + +The above table describes the most basic possible keystrokes that you need +in order to do editing of the input line. For your convenience, many +other commands have been added in addition to @key{C-b}, @key{C-f}, +@key{C-d}, and @key{DEL}. Here are some commands for moving more rapidly +about the line. + +@table @key +@item C-a +Move to the start of the line. +@item C-e +Move to the end of the line. +@item M-f +Move forward a word. +@item M-b +Move backward a word. +@item C-l +Clear the screen, reprinting the current line at the top. +@end table + +Notice how @key{C-f} moves forward a character, while @key{M-f} moves +forward a word. It is a loose convention that control keystrokes +operate on characters while meta keystrokes operate on words. + +@node Readline Killing Commands +@subsection Readline Killing Commands + +@cindex Killing text +@cindex Yanking text + +@dfn{Killing} text means to delete the text from the line, but to save +it away for later use, usually by @dfn{yanking} (re-inserting) +it back into the line. +If the description for a command says that it `kills' text, then you can +be sure that you can get the text back in a different (or the same) +place later. + +When you use a kill command, the text is saved in a @dfn{kill-ring}. +Any number of consecutive kills save all of the killed text together, so +that when you yank it back, you get it all. The kill +ring is not line specific; the text that you killed on a previously +typed line is available to be yanked back later, when you are typing +another line. +@cindex Kill ring + +Here is the list of commands for killing text. + +@table @key +@item C-k +Kill the text from the current cursor position to the end of the line. + +@item M-d +Kill from the cursor to the end of the current word, or if between +words, to the end of the next word. + +@item M-DEL +Kill from the cursor the start of the previous word, or if between +words, to the start of the previous word. + +@item C-w +Kill from the cursor to the previous whitespace. This is different than +@key{M-DEL} because the word boundaries differ. + +@end table + +And, here is how to @dfn{yank} the text back into the line. Yanking +means to copy the most-recently-killed text from the kill buffer. + +@table @key +@item C-y +Yank the most recently killed text back into the buffer at the cursor. + +@item M-y +Rotate the kill-ring, and yank the new top. You can only do this if +the prior command is @key{C-y} or @key{M-y}. +@end table + +@node Readline Arguments +@subsection Readline Arguments + +You can pass numeric arguments to Readline commands. Sometimes the +argument acts as a repeat count, other times it is the @i{sign} of the +argument that is significant. If you pass a negative argument to a +command which normally acts in a forward direction, that command will +act in a backward direction. For example, to kill text back to the +start of the line, you might type @key{M--} @key{C-k}. + +The general way to pass numeric arguments to a command is to type meta +digits before the command. If the first `digit' you type is a minus +sign (@key{-}), then the sign of the argument will be negative. Once +you have typed one meta digit to get the argument started, you can type +the remainder of the digits, and then the command. For example, to give +the @key{C-d} command an argument of 10, you could type @key{M-1 0 C-d}. + + +@node Readline Init File +@section Readline Init File + +Although the Readline library comes with a set of Emacs-like +keybindings installed by default, +it is possible that you would like to use a different set +of keybindings. You can customize programs that use Readline by putting +commands in an @dfn{init} file in your home directory. The name of this +@ifset BashFeatures +file is taken from the value of the shell variable @code{INPUTRC}. If +@end ifset +@ifclear BashFeatures +file is taken from the value of the environment variable @code{INPUTRC}. If +@end ifclear +that variable is unset, the default is @file{~/.inputrc}. + +When a program which uses the Readline library starts up, the +init file is read, and the key bindings are set. + +In addition, the @code{C-x C-r} command re-reads this init file, thus +incorporating any changes that you might have made to it. + +@menu +* Readline Init Syntax:: Syntax for the commands in the inputrc file. +* Conditional Init Constructs:: Conditional key bindings in the inputrc file. +@end menu + +@node Readline Init Syntax +@subsection Readline Init Syntax + +There are only a few basic constructs allowed in the +Readline init file. Blank lines are ignored. +Lines beginning with a @key{#} are comments. +Lines beginning with a @key{$} indicate conditional +constructs (@pxref{Conditional Init Constructs}). Other lines +denote variable settings and key bindings. + +@table @asis +@item Variable Settings +You can change the state of a few variables in Readline by +using the @code{set} command within the init file. Here is how you +would specify that you wish to use @code{vi} line editing commands: + +@example +set editing-mode vi +@end example + +Right now, there are only a few variables which can be set; +so few, in fact, that we just list them here: + +@table @code + +@item editing-mode +@vindex editing-mode +The @code{editing-mode} variable controls which editing mode you are +using. By default, Readline starts up in Emacs editing mode, where +the keystrokes are most similar to Emacs. This variable can be +set to either @code{emacs} or @code{vi}. + +@item horizontal-scroll-mode +@vindex horizontal-scroll-mode +This variable can be set to either @code{On} or @code{Off}. Setting it +to @code{On} means that the text of the lines that you edit will scroll +horizontally on a single screen line when they are longer than the width +of the screen, instead of wrapping onto a new screen line. By default, +this variable is set to @code{Off}. + +@item mark-modified-lines +@vindex mark-modified-lines +This variable, when set to @code{On}, says to display an asterisk +(@samp{*}) at the start of history lines which have been modified. +This variable is @code{off} by default. + +@item bell-style +@vindex bell-style +Controls what happens when Readline wants to ring the terminal bell. +If set to @code{none}, Readline never rings the bell. If set to +@code{visible}, Readline uses a visible bell if one is available. +If set to @code{audible} (the default), Readline attempts to ring +the terminal's bell. + +@item comment-begin +@vindex comment-begin +The string to insert at the beginning of the line when the +@code{vi-comment} command is executed. The default value +is @code{"#"}. + +@item meta-flag +@vindex meta-flag +If set to @code{on}, Readline will enable eight-bit input (it +will not strip the eighth bit from the characters it reads), +regardless of what the terminal claims it can support. The +default value is @code{off}. + +@item convert-meta +@vindex convert-meta +If set to @code{on}, Readline will convert characters with the +eigth bit set to an ASCII key sequence by stripping the eigth +bit and prepending an @key{ESC} character, converting them to a +meta-prefixed key sequence. The default value is @code{on}. + +@item output-meta +@vindex output-meta +If set to @code{on}, Readline will display characters with the +eighth bit set directly rather than as a meta-prefixed escape +sequence. The default is @code{off}. + +@item completion-query-items +@vindex completion-query-items +The number of possible completions that determines when the user is +asked whether he wants to see the list of possibilities. If the +number of possible completions is greater than this value, +Readline will ask the user whether or not he wishes to view +them; otherwise, they are simply listed. The default limit is +@code{100}. + +@item keymap +@vindex keymap +Sets Readline's idea of the current keymap for key binding commands. +Acceptable @code{keymap} names are +@code{emacs}, +@code{emacs-standard}, +@code{emacs-meta}, +@code{emacs-ctlx}, +@code{vi}, +@code{vi-move}, +@code{vi-command}, and +@code{vi-insert}. +@code{vi} is equivalent to @code{vi-command}; @code{emacs} is +equivalent to @code{emacs-standard}. The default value is @code{emacs}. +The value of the @code{editing-mode} variable also affects the +default keymap. + +@item show-all-if-ambiguous +@vindex show-all-if-ambiguous +This alters the default behavior of the completion functions. If +set to @code{on}, +words which have more than one possible completion cause the +matches to be listed immediately instead of ringing the bell. +The default value is @code{off}. + +@item expand-tilde +@vindex expand-tilde +If set to @code{on}, tilde expansion is performed when Readline +attempts word completion. The default is @code{off}. + +@end table + +@item Key Bindings +The syntax for controlling key bindings in the init file is +simple. First you have to know the name of the command that you +want to change. The following pages contain tables of the command name, +the default keybinding, and a short description of what the command +does. + +Once you know the name of the command, simply place the name of the key +you wish to bind the command to, a colon, and then the name of the +command on a line in the init file. The name of the key +can be expressed in different ways, depending on which is most +comfortable for you. + +@table @asis +@item @w{@var{keyname}: @var{function-name} or @var{macro}} +@var{keyname} is the name of a key spelled out in English. For example: +@example +Control-u: universal-argument +Meta-Rubout: backward-kill-word +Control-o: ">&output" +@end example + +In the above example, @samp{C-u} is bound to the function +@code{universal-argument}, and @samp{C-o} is bound to run the macro +expressed on the right hand side (that is, to insert the text +@samp{>&output} into the line). + +@item @w{"@var{keyseq}": @var{function-name} or @var{macro}} +@var{keyseq} differs from @var{keyname} above in that strings +denoting an entire key sequence can be specified, by placing +the key sequence in double quotes. Some GNU Emacs style key +escapes can be used, as in the following example, but the +special character names are not recognized. + +@example +"\C-u": universal-argument +"\C-x\C-r": re-read-init-file +"\e[11~": "Function Key 1" +@end example + +In the above example, @samp{C-u} is bound to the function +@code{universal-argument} (just as it was in the first example), +@samp{C-x C-r} is bound to the function @code{re-read-init-file}, and +@samp{ESC [ 1 1 ~} is bound to insert the text @samp{Function Key 1}. +The following escape sequences are available when specifying key +sequences: + +@table @code +@item @kbd{\C-} +control prefix +@item @kbd{\M-} +meta prefix +@item @kbd{\e} +an escape character +@item @kbd{\\} +backslash +@item @kbd{\"} +@key{"} +@item @kbd{\'} +@key{'} +@end table + +When entering the text of a macro, single or double quotes should +be used to indicate a macro definition. Unquoted text +is assumed to be a function name. Backslash +will quote any character in the macro text, including @key{"} +and @key{'}. +For example, the following binding will make @kbd{C-x \} +insert a single @key{\} into the line: +@example +"\C-x\\": "\\" +@end example + +@end table +@end table + +@node Conditional Init Constructs +@subsection Conditional Init Constructs + +Readline implements a facility similar in spirit to the conditional +compilation features of the C preprocessor which allows key +bindings and variable settings to be performed as the result +of tests. There are three parser directives used. + +@ftable @code +@item $if +The @code{$if} construct allows bindings to be made based on the +editing mode, the terminal being used, or the application using +Readline. The text of the test extends to the end of the line; +no characters are required to isolate it. + +@table @code +@item mode +The @code{mode=} form of the @code{$if} directive is used to test +whether Readline is in @code{emacs} or @code{vi} mode. +This may be used in conjunction +with the @samp{set keymap} command, for instance, to set bindings in +the @code{emacs-standard} and @code{emacs-ctlx} keymaps only if +Readline is starting out in @code{emacs} mode. + +@item term +The @code{term=} form may be used to include terminal-specific +key bindings, perhaps to bind the key sequences output by the +terminal's function keys. The word on the right side of the +@samp{=} is tested against the full name of the terminal and the +portion of the terminal name before the first @samp{-}. This +allows @var{sun} to match both @var{sun} and @var{sun-cmd}, +for instance. + +@item application +The @var{application} construct is used to include +application-specific settings. Each program using the Readline +library sets the @var{application name}, and you can test for it. +This could be used to bind key sequences to functions useful for +a specific program. For instance, the following command adds a +key sequence that quotes the current or previous word in Bash: +@example +$if bash +# Quote the current or previous word +"\C-xq": "\eb\"\ef\"" +$endif +@end example +@end table + +@item $endif +This command, as you saw in the previous example, terminates an +@code{$if} command. + +@item $else +Commands in this branch of the @code{$if} directive are executed if +the test fails. +@end ftable + +@node Bindable Readline Commands +@section Bindable Readline Commands + +@menu +* Commands For Moving:: Moving about the line. +* Commands For History:: Getting at previous lines. +* Commands For Text:: Commands for changing text. +* Commands For Killing:: Commands for killing and yanking. +* Numeric Arguments:: Specifying numeric arguments, repeat counts. +* Commands For Completion:: Getting Readline to do the typing for you. +* Keyboard Macros:: Saving and re-executing typed characters +* Miscellaneous Commands:: Other miscellaneous commands. +@end menu + +@node Commands For Moving +@subsection Commands For Moving +@ftable @code +@item beginning-of-line (C-a) +Move to the start of the current line. + +@item end-of-line (C-e) +Move to the end of the line. + +@item forward-char (C-f) +Move forward a character. + +@item backward-char (C-b) +Move back a character. + +@item forward-word (M-f) +Move forward to the end of the next word. Words are composed of +letters and digits. + +@item backward-word (M-b) +Move back to the start of this, or the previous, word. Words are +composed of letters and digits. + +@item clear-screen (C-l) +Clear the screen and redraw the current line, +leaving the current line at the top of the screen. + +@item redraw-current-line () +Refresh the current line. By default, this is unbound. + +@end ftable + +@node Commands For History +@subsection Commands For Manipulating The History + +@ftable @code +@item accept-line (Newline, Return) +@ifset BashFeatures +Accept the line regardless of where the cursor is. If this line is +non-empty, add it to the history list according to the setting of +the @code{HISTCONTROL} variable. If this line was a history +line, then restore the history line to its original state. +@end ifset +@ifclear BashFeatures +Accept the line regardless of where the cursor is. If this line is +non-empty, add it to the history list. If this line was a history +line, then restore the history line to its original state. +@end ifclear + +@item previous-history (C-p) +Move `up' through the history list. + +@item next-history (C-n) +Move `down' through the history list. + +@item beginning-of-history (M-<) +Move to the first line in the history. + +@item end-of-history (M->) +Move to the end of the input history, i.e., the line you are entering. + +@item reverse-search-history (C-r) +Search backward starting at the current line and moving `up' through +the history as necessary. This is an incremental search. + +@item forward-search-history (C-s) +Search forward starting at the current line and moving `down' through +the the history as necessary. This is an incremental search. + +@item non-incremental-reverse-search-history (M-p) +Search backward starting at the current line and moving `up' +through the history as necessary using a non-incremental search +for a string supplied by the user. + +@item non-incremental-forward-search-history (M-n) +Search forward starting at the current line and moving `down' +through the the history as necessary using a non-incremental search +for a string supplied by the user. + +@item history-search-forward () +Search forward through the history for the string of characters +between the start of the current line and the current point. This +is a non-incremental search. By default, this command is unbound. + +@item history-search-backward () +Search backward through the history for the string of characters +between the start of the current line and the current point. This +is a non-incremental search. By default, this command is unbound. + +@item yank-nth-arg (M-C-y) +Insert the first argument to the previous command (usually +the second word on the previous line). With an argument @var{n}, +insert the @var{n}th word from the previous command (the words +in the previous command begin with word 0). A negative argument +inserts the @var{n}th word from the end of the previous command. + +@item yank-last-arg (M-., M-_) +Insert last argument to the previous command (the last word on the +previous line). With an +argument, behave exactly like @code{yank-nth-arg}. + +@end ftable + +@node Commands For Text +@subsection Commands For Changing Text + +@ftable @code +@item delete-char (C-d) +Delete the character under the cursor. If the cursor is at the +beginning of the line, there are no characters in the line, and +the last character typed was not C-d, then return EOF. + +@item backward-delete-char (Rubout) +Delete the character behind the cursor. A numeric arg says to kill +the characters instead of deleting them. + +@item quoted-insert (C-q, C-v) +Add the next character that you type to the line verbatim. This is +how to insert key sequences like @key{C-q}, for example. + +@item tab-insert (M-TAB) +Insert a tab character. + +@item self-insert (a, b, A, 1, !, ...) +Insert yourself. + +@item transpose-chars (C-t) +Drag the character before the cursor forward over +the character at the cursor, moving the +cursor forward as well. If the insertion point +is at the end of the line, then this +transposes the last two characters of the line. +Negative argumentss don't work. + +@item transpose-words (M-t) +Drag the word behind the cursor past the word in front of the cursor +moving the cursor over that word as well. + +@item upcase-word (M-u) +Uppercase the current (or following) word. With a negative argument, +do the previous word, but do not move the cursor. + +@item downcase-word (M-l) +Lowercase the current (or following) word. With a negative argument, +do the previous word, but do not move the cursor. + +@item capitalize-word (M-c) +Capitalize the current (or following) word. With a negative argument, +do the previous word, but do not move the cursor. + +@end ftable + +@node Commands For Killing +@subsection Killing And Yanking + +@ftable @code + +@item kill-line (C-k) +Kill the text from the current cursor position to the end of the line. + +@item backward-kill-line (C-x Rubout) +Kill backward to the beginning of the line. + +@item unix-line-discard (C-u) +Kill backward from the cursor to the beginning of the current line. +Save the killed text on the kill-ring. + +@item kill-whole-line () +Kill all characters on the current line, no matter where the +cursor is. By default, this is unbound. + +@item kill-word (M-d) +Kill from the cursor to the end of the current word, or if between +words, to the end of the next word. Word boundaries are the same +as @code{forward-word}. + +@item backward-kill-word (M-DEL) +Kill the word behind the cursor. Word boundaries are the same +as @code{backward-word}. + +@item unix-word-rubout (C-w) +Kill the word behind the cursor, using white space as a word +boundary. The killed text is saved on the kill-ring. + +@item delete-horizontal-space () +Delete all spaces and tabs around point. By default, this is unbound. + +@item yank (C-y) +Yank the top of the kill ring into the buffer at the current +cursor position. + +@item yank-pop (M-y) +Rotate the kill-ring, and yank the new top. You can only do this if +the prior command is yank or yank-pop. +@end ftable + +@node Numeric Arguments +@subsection Specifying Numeric Arguments +@ftable @code + +@item digit-argument (M-0, M-1, ... M--) +Add this digit to the argument already accumulating, or start a new +argument. M-- starts a negative argument. + +@item universal-argument () +Each time this is executed, the argument count is multiplied by four. +The argument count is initially one, so executing this function the +first time makes the argument count four. By default, this is not +bound to a key. +@end ftable + +@node Commands For Completion +@subsection Letting Readline Type For You + +@ftable @code +@item complete (TAB) +Attempt to do completion on the text before the cursor. This is +application-specific. Generally, if you are typing a filename +argument, you can do filename completion; if you are typing a command, +you can do command completion, if you are typing in a symbol to GDB, you +can do symbol name completion, if you are typing in a variable to Bash, +you can do variable name completion, and so on. +@ifset BashFeatures +See the Bash manual page for a complete list of available completion +functions. +@end ifset + +@item possible-completions (M-?) +List the possible completions of the text before the cursor. + +@item insert-completions () +Insert all completions of the text before point that would have +been generated by @code{possible-completions}. By default, this +is not bound to a key. + +@end ftable + +@node Keyboard Macros +@subsection Keyboard Macros +@ftable @code + +@item start-kbd-macro (C-x () +Begin saving the characters typed into the current keyboard macro. + +@item end-kbd-macro (C-x )) +Stop saving the characters typed into the current keyboard macro +and save the definition. + +@item call-last-kbd-macro (C-x e) +Re-execute the last keyboard macro defined, by making the characters +in the macro appear as if typed at the keyboard. + +@end ftable + +@node Miscellaneous Commands +@subsection Some Miscellaneous Commands +@ftable @code + +@item re-read-init-file (C-x C-r) +Read in the contents of your init file, and incorporate +any bindings or variable assignments found there. + +@item abort (C-g) +Abort the current editing command and +ring the terminal's bell (subject to the setting of +@code{bell-style}). + +@item do-uppercase-version (M-a, M-b, ...) +Run the command that is bound to the corresoponding uppercase +character. + +@item prefix-meta (ESC) +Make the next character that you type be metafied. This is for people +without a meta key. Typing @samp{ESC f} is equivalent to typing +@samp{M-f}. + +@item undo (C-_, C-x C-u) +Incremental undo, separately remembered for each line. + +@item revert-line (M-r) +Undo all changes made to this line. This is like typing the @code{undo} +command enough times to get back to the beginning. + +@item tilde-expand (M-~) +Perform tilde expansion on the current word. + +@item dump-functions () +Print all of the functions and their key bindings to the +readline output stream. If a numeric argument is supplied, +the output is formatted in such a way that it can be made part +of an @var{inputrc} file. + +@ifset BashFeatures +@item display-shell-version (C-x C-v) +Display version information about the current instance of Bash. + +@item shell-expand-line (M-C-e) +Expand the line the way the shell does when it reads it. This +performs alias and history expansion as well as all of the shell +word expansions. + +@item history-expand-line (M-^) +Perform history expansion on the current line. + +@item insert-last-argument (M-., M-_) +A synonym for @code{yank-last-arg}. + +@item operate-and-get-next (C-o) +Accept the current line for execution and fetch the next line +relative to the current line from the history for editing. Any +argument is ignored. + +@item emacs-editing-mode (C-e) +When in @code{vi} editing mode, this causes a switch back to +emacs editing mode, as if the command @code{set -o emacs} had +been executed. + +@end ifset + +@end ftable + +@node Readline vi Mode +@section Readline vi Mode + +While the Readline library does not have a full set of @code{vi} +editing functions, it does contain enough to allow simple editing +of the line. The Readline @code{vi} mode behaves as specified in +the Posix 1003.2 standard. + +@ifset BashFeatures +In order to switch interactively between @code{Emacs} and @code{Vi} +editing modes, use the @code{set -o emacs} and @code{set -o vi} +commands (@pxref{The Set Builtin}). +@end ifset +@ifclear BashFeatures +In order to switch interactively between @code{Emacs} and @code{Vi} +editing modes, use the command M-C-j (toggle-editing-mode). +@end ifclear +The Readline default is @code{emacs} mode. + +When you enter a line in @code{vi} mode, you are already placed in +`insertion' mode, as if you had typed an @samp{i}. Pressing @key{ESC} +switches you into `command' mode, where you can edit the text of the +line with the standard @code{vi} movement keys, move to previous +history lines with @samp{k}, and following lines with @samp{j}, and +so forth.
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/doc/texindex.c Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,1666 @@ +/* Prepare TeX index dribble output into an actual index. + + Version 1.45 + + Copyright (C) 1987, 1991, 1992 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + + +#include <stdio.h> +#include <ctype.h> +#include <errno.h> +#include "getopt.h" +#include "bashansi.h" + +#if !defined (errno) +extern int errno; +#endif + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#else /* !HAVE_UNISTD_H */ +extern long lseek (); +#endif /* !HAVE_UNISTD_H */ + +extern char *mktemp (); + +#if !defined (HAVE_STRERROR) +extern int sys_nerr; +extern char *sys_errlist[]; +#endif + +#include <sys/types.h> + +#if defined (_AIX) || !defined (_POSIX_VERSION) +# include <sys/file.h> +#endif + +#include <fcntl.h> + +#define TI_NO_ERROR 0 +#define TI_FATAL_ERROR 1 + +#if !defined (SEEK_SET) +# define SEEK_SET 0 +# define SEEK_CUR 1 +# define SEEK_END 2 +#endif /* !SEEK_SET */ + +/* When sorting in core, this structure describes one line + and the position and length of its first keyfield. */ +struct lineinfo +{ + char *text; /* The actual text of the line. */ + union { + char *text; /* The start of the key (for textual comparison). */ + long number; /* The numeric value (for numeric comparison). */ + } key; + long keylen; /* Length of KEY field. */ +}; + +/* This structure describes a field to use as a sort key. */ +struct keyfield +{ + int startwords; /* Number of words to skip. */ + int startchars; /* Number of additional chars to skip. */ + int endwords; /* Number of words to ignore at end. */ + int endchars; /* Ditto for characters of last word. */ + char ignore_blanks; /* Non-zero means ignore spaces and tabs. */ + char fold_case; /* Non-zero means case doesn't matter. */ + char reverse; /* Non-zero means compare in reverse order. */ + char numeric; /* Non-zeros means field is ASCII numeric. */ + char positional; /* Sort according to file position. */ + char braced; /* Count balanced-braced groupings as fields. */ +}; + +/* Vector of keyfields to use. */ +struct keyfield keyfields[3]; + +/* Number of keyfields stored in that vector. */ +int num_keyfields = 3; + +/* Vector of input file names, terminated with a null pointer. */ +char **infiles; + +/* Vector of corresponding output file names, or NULL, meaning default it + (add an `s' to the end). */ +char **outfiles; + +/* Length of `infiles'. */ +int num_infiles; + +/* Pointer to the array of pointers to lines being sorted. */ +char **linearray; + +/* The allocated length of `linearray'. */ +long nlines; + +/* Directory to use for temporary files. On Unix, it ends with a slash. */ +char *tempdir; + +/* Start of filename to use for temporary files. */ +char *tempbase; + +/* Number of last temporary file. */ +int tempcount; + +/* Number of last temporary file already deleted. + Temporary files are deleted by `flush_tempfiles' in order of creation. */ +int last_deleted_tempcount; + +/* During in-core sort, this points to the base of the data block + which contains all the lines of data. */ +char *text_base; + +/* Additional command switches .*/ + +/* Nonzero means do not delete tempfiles -- for debugging. */ +int keep_tempfiles; + +/* The name this program was run with. */ +char *program_name; + +/* Forward declarations of functions in this file. */ + +void decode_command (); +void sort_in_core (); +void sort_offline (); +char **parsefile (); +char *find_field (); +char *find_pos (); +long find_value (); +char *find_braced_pos (); +char *find_braced_end (); +void writelines (); +int compare_field (); +int compare_full (); +long readline (); +int merge_files (); +int merge_direct (); +void pfatal_with_name (); +void fatal (); +void error (); +void *xmalloc (), *xrealloc (); +char *concat (); +char *maketempname (); +void flush_tempfiles (); +char *tempcopy (); + +#define MAX_IN_CORE_SORT 500000 + +void +main (argc, argv) + int argc; + char **argv; +{ + int i; + + tempcount = 0; + last_deleted_tempcount = 0; + program_name = argv[0]; + + /* Describe the kind of sorting to do. */ + /* The first keyfield uses the first braced field and folds case. */ + keyfields[0].braced = 1; + keyfields[0].fold_case = 1; + keyfields[0].endwords = -1; + keyfields[0].endchars = -1; + + /* The second keyfield uses the second braced field, numerically. */ + keyfields[1].braced = 1; + keyfields[1].numeric = 1; + keyfields[1].startwords = 1; + keyfields[1].endwords = -1; + keyfields[1].endchars = -1; + + /* The third keyfield (which is ignored while discarding duplicates) + compares the whole line. */ + keyfields[2].endwords = -1; + keyfields[2].endchars = -1; + + decode_command (argc, argv); + + tempbase = mktemp (concat ("txiXXXXXX", "", "")); + + /* Process input files completely, one by one. */ + + for (i = 0; i < num_infiles; i++) + { + int desc; + long ptr; + char *outfile; + + desc = open (infiles[i], O_RDONLY, 0); + if (desc < 0) + pfatal_with_name (infiles[i]); + lseek (desc, 0L, SEEK_END); + ptr = lseek (desc, 0L, SEEK_CUR); + + close (desc); + + outfile = outfiles[i]; + if (!outfile) + { + outfile = concat (infiles[i], "s", ""); + } + + if (ptr < MAX_IN_CORE_SORT) + /* Sort a small amount of data. */ + sort_in_core (infiles[i], ptr, outfile); + else + sort_offline (infiles[i], ptr, outfile); + } + + flush_tempfiles (tempcount); + exit (TI_NO_ERROR); +} + +void +usage () +{ + fprintf (stderr, "\ +Usage: %s [-k] infile [-o outfile] ...\n", program_name); + exit (1); +} + +/* Decode the command line arguments to set the parameter variables + and set up the vector of keyfields and the vector of input files. */ + +void +decode_command (argc, argv) + int argc; + char **argv; +{ + int optc; + char **ip; + char **op; + + /* Store default values into parameter variables. */ + + tempdir = getenv ("TMPDIR"); + if (tempdir == NULL) + tempdir = "/tmp/"; + else + tempdir = concat (tempdir, "/", ""); + + keep_tempfiles = 0; + + /* Allocate ARGC input files, which must be enough. */ + + infiles = (char **) xmalloc (argc * sizeof (char *)); + outfiles = (char **) xmalloc (argc * sizeof (char *)); + ip = infiles; + op = outfiles; + + while ((optc = getopt (argc, argv, "-ko:")) != EOF) + { + switch (optc) + { + case 1: /* Non-option filename. */ + *ip++ = optarg; + *op++ = NULL; + break; + + case 'k': + keep_tempfiles = 1; + break; + + case 'o': + if (op > outfiles) + *(op - 1) = optarg; + break; + + default: + usage (); + } + } + + /* Record number of keyfields and terminate list of filenames. */ + num_infiles = ip - infiles; + *ip = 0; + if (num_infiles == 0) + usage (); +} + +/* Return a name for a temporary file. */ + +char * +maketempname (count) + int count; +{ + char tempsuffix[10]; + sprintf (tempsuffix, "%d", count); + return concat (tempdir, tempbase, tempsuffix); +} + +/* Delete all temporary files up to TO_COUNT. */ + +void +flush_tempfiles (to_count) + int to_count; +{ + if (keep_tempfiles) + return; + while (last_deleted_tempcount < to_count) + unlink (maketempname (++last_deleted_tempcount)); +} + +/* Copy the input file open on IDESC into a temporary file + and return the temporary file name. */ + +#define BUFSIZE 1024 + +char * +tempcopy (idesc) + int idesc; +{ + char *outfile = maketempname (++tempcount); + int odesc; + char buffer[BUFSIZE]; + + odesc = open (outfile, O_WRONLY | O_CREAT, 0666); + + if (odesc < 0) + pfatal_with_name (outfile); + + while (1) + { + int nread = read (idesc, buffer, BUFSIZE); + write (odesc, buffer, nread); + if (!nread) + break; + } + + close (odesc); + + return outfile; +} + +/* Compare LINE1 and LINE2 according to the specified set of keyfields. */ + +int +compare_full (line1, line2) + char **line1, **line2; +{ + int i; + + /* Compare using the first keyfield; + if that does not distinguish the lines, try the second keyfield; + and so on. */ + + for (i = 0; i < num_keyfields; i++) + { + long length1, length2; + char *start1 = find_field (&keyfields[i], *line1, &length1); + char *start2 = find_field (&keyfields[i], *line2, &length2); + int tem = compare_field (&keyfields[i], start1, length1, *line1 - text_base, + start2, length2, *line2 - text_base); + if (tem) + { + if (keyfields[i].reverse) + return -tem; + return tem; + } + } + + return 0; /* Lines match exactly. */ +} + +/* Compare LINE1 and LINE2, described by structures + in which the first keyfield is identified in advance. + For positional sorting, assumes that the order of the lines in core + reflects their nominal order. */ + +int +compare_prepared (line1, line2) + struct lineinfo *line1, *line2; +{ + int i; + int tem; + char *text1, *text2; + + /* Compare using the first keyfield, which has been found for us already. */ + if (keyfields->positional) + { + if (line1->text - text_base > line2->text - text_base) + tem = 1; + else + tem = -1; + } + else if (keyfields->numeric) + tem = line1->key.number - line2->key.number; + else + tem = compare_field (keyfields, line1->key.text, line1->keylen, 0, + line2->key.text, line2->keylen, 0); + if (tem) + { + if (keyfields->reverse) + return -tem; + return tem; + } + + text1 = line1->text; + text2 = line2->text; + + /* Compare using the second keyfield; + if that does not distinguish the lines, try the third keyfield; + and so on. */ + + for (i = 1; i < num_keyfields; i++) + { + long length1, length2; + char *start1 = find_field (&keyfields[i], text1, &length1); + char *start2 = find_field (&keyfields[i], text2, &length2); + int tem = compare_field (&keyfields[i], start1, length1, text1 - text_base, + start2, length2, text2 - text_base); + if (tem) + { + if (keyfields[i].reverse) + return -tem; + return tem; + } + } + + return 0; /* Lines match exactly. */ +} + +/* Like compare_full but more general. + You can pass any strings, and you can say how many keyfields to use. + POS1 and POS2 should indicate the nominal positional ordering of + the two lines in the input. */ + +int +compare_general (str1, str2, pos1, pos2, use_keyfields) + char *str1, *str2; + long pos1, pos2; + int use_keyfields; +{ + int i; + + /* Compare using the first keyfield; + if that does not distinguish the lines, try the second keyfield; + and so on. */ + + for (i = 0; i < use_keyfields; i++) + { + long length1, length2; + char *start1 = find_field (&keyfields[i], str1, &length1); + char *start2 = find_field (&keyfields[i], str2, &length2); + int tem = compare_field (&keyfields[i], start1, length1, pos1, + start2, length2, pos2); + if (tem) + { + if (keyfields[i].reverse) + return -tem; + return tem; + } + } + + return 0; /* Lines match exactly. */ +} + +/* Find the start and length of a field in STR according to KEYFIELD. + A pointer to the starting character is returned, and the length + is stored into the int that LENGTHPTR points to. */ + +char * +find_field (keyfield, str, lengthptr) + struct keyfield *keyfield; + char *str; + long *lengthptr; +{ + char *start; + char *end; + char *(*fun) (); + + if (keyfield->braced) + fun = find_braced_pos; + else + fun = find_pos; + + start = (*fun) (str, keyfield->startwords, keyfield->startchars, + keyfield->ignore_blanks); + if (keyfield->endwords < 0) + { + if (keyfield->braced) + end = find_braced_end (start); + else + { + end = start; + while (*end && *end != '\n') + end++; + } + } + else + { + end = (*fun) (str, keyfield->endwords, keyfield->endchars, 0); + if (end - str < start - str) + end = start; + } + *lengthptr = end - start; + return start; +} + +/* Return a pointer to a specified place within STR, + skipping (from the beginning) WORDS words and then CHARS chars. + If IGNORE_BLANKS is nonzero, we skip all blanks + after finding the specified word. */ + +char * +find_pos (str, words, chars, ignore_blanks) + char *str; + int words, chars; + int ignore_blanks; +{ + int i; + char *p = str; + + for (i = 0; i < words; i++) + { + char c; + /* Find next bunch of nonblanks and skip them. */ + while ((c = *p) == ' ' || c == '\t') + p++; + while ((c = *p) && c != '\n' && !(c == ' ' || c == '\t')) + p++; + if (!*p || *p == '\n') + return p; + } + + while (*p == ' ' || *p == '\t') + p++; + + for (i = 0; i < chars; i++) + { + if (!*p || *p == '\n') + break; + p++; + } + return p; +} + +/* Like find_pos but assumes that each field is surrounded by braces + and that braces within fields are balanced. */ + +char * +find_braced_pos (str, words, chars, ignore_blanks) + char *str; + int words, chars; + int ignore_blanks; +{ + int i; + int bracelevel; + char *p = str; + char c; + + for (i = 0; i < words; i++) + { + bracelevel = 1; + while ((c = *p++) != '{' && c != '\n' && c) + /* Do nothing. */ ; + if (c != '{') + return p - 1; + while (bracelevel) + { + c = *p++; + if (c == '{') + bracelevel++; + if (c == '}') + bracelevel--; + if (c == 0 || c == '\n') + return p - 1; + } + } + + while ((c = *p++) != '{' && c != '\n' && c) + /* Do nothing. */ ; + + if (c != '{') + return p - 1; + + if (ignore_blanks) + while ((c = *p) == ' ' || c == '\t') + p++; + + for (i = 0; i < chars; i++) + { + if (!*p || *p == '\n') + break; + p++; + } + return p; +} + +/* Find the end of the balanced-brace field which starts at STR. + The position returned is just before the closing brace. */ + +char * +find_braced_end (str) + char *str; +{ + int bracelevel; + char *p = str; + char c; + + bracelevel = 1; + while (bracelevel) + { + c = *p++; + if (c == '{') + bracelevel++; + if (c == '}') + bracelevel--; + if (c == 0 || c == '\n') + return p - 1; + } + return p - 1; +} + +long +find_value (start, length) + char *start; + long length; +{ + while (length != 0L) + { + if (isdigit (*start)) + return atol (start); + length--; + start++; + } + return 0l; +} + +/* Vector used to translate characters for comparison. + This is how we make all alphanumerics follow all else, + and ignore case in the first sorting. */ +int char_order[256]; + +void +init_char_order () +{ + int i; + for (i = 1; i < 256; i++) + char_order[i] = i; + + for (i = '0'; i <= '9'; i++) + char_order[i] += 512; + + for (i = 'a'; i <= 'z'; i++) + { + char_order[i] = 512 + i; + char_order[i + 'A' - 'a'] = 512 + i; + } +} + +/* Compare two fields (each specified as a start pointer and a character count) + according to KEYFIELD. + The sign of the value reports the relation between the fields. */ + +int +compare_field (keyfield, start1, length1, pos1, start2, length2, pos2) + struct keyfield *keyfield; + char *start1; + long length1; + long pos1; + char *start2; + long length2; + long pos2; +{ + if (keyfields->positional) + { + if (pos1 > pos2) + return 1; + else + return -1; + } + if (keyfield->numeric) + { + long value = find_value (start1, length1) - find_value (start2, length2); + if (value > 0) + return 1; + if (value < 0) + return -1; + return 0; + } + else + { + char *p1 = start1; + char *p2 = start2; + char *e1 = start1 + length1; + char *e2 = start2 + length2; + + while (1) + { + int c1, c2; + + if (p1 == e1) + c1 = 0; + else + c1 = *p1++; + if (p2 == e2) + c2 = 0; + else + c2 = *p2++; + + if (char_order[c1] != char_order[c2]) + return char_order[c1] - char_order[c2]; + if (!c1) + break; + } + + /* Strings are equal except possibly for case. */ + p1 = start1; + p2 = start2; + while (1) + { + int c1, c2; + + if (p1 == e1) + c1 = 0; + else + c1 = *p1++; + if (p2 == e2) + c2 = 0; + else + c2 = *p2++; + + if (c1 != c2) + /* Reverse sign here so upper case comes out last. */ + return c2 - c1; + if (!c1) + break; + } + + return 0; + } +} + +/* A `struct linebuffer' is a structure which holds a line of text. + `readline' reads a line from a stream into a linebuffer + and works regardless of the length of the line. */ + +struct linebuffer +{ + long size; + char *buffer; +}; + +/* Initialize LINEBUFFER for use. */ + +void +initbuffer (linebuffer) + struct linebuffer *linebuffer; +{ + linebuffer->size = 200; + linebuffer->buffer = (char *) xmalloc (200); +} + +/* Read a line of text from STREAM into LINEBUFFER. + Return the length of the line. */ + +long +readline (linebuffer, stream) + struct linebuffer *linebuffer; + FILE *stream; +{ + char *buffer = linebuffer->buffer; + char *p = linebuffer->buffer; + char *end = p + linebuffer->size; + + while (1) + { + int c = getc (stream); + if (p == end) + { + buffer = (char *) xrealloc (buffer, linebuffer->size *= 2); + p += buffer - linebuffer->buffer; + end += buffer - linebuffer->buffer; + linebuffer->buffer = buffer; + } + if (c < 0 || c == '\n') + { + *p = 0; + break; + } + *p++ = c; + } + + return p - buffer; +} + +/* Sort an input file too big to sort in core. */ + +void +sort_offline (infile, nfiles, total, outfile) + char *infile; + int nfiles; + long total; + char *outfile; +{ + /* More than enough. */ + int ntemps = 2 * (total + MAX_IN_CORE_SORT - 1) / MAX_IN_CORE_SORT; + char **tempfiles = (char **) xmalloc (ntemps * sizeof (char *)); + FILE *istream = fopen (infile, "r"); + int i; + struct linebuffer lb; + long linelength; + int failure = 0; + + initbuffer (&lb); + + /* Read in one line of input data. */ + + linelength = readline (&lb, istream); + + if (lb.buffer[0] != '\\' && lb.buffer[0] != '@') + { + error ("%s: not a texinfo index file", infile); + return; + } + + /* Split up the input into `ntemps' temporary files, or maybe fewer, + and put the new files' names into `tempfiles' */ + + for (i = 0; i < ntemps; i++) + { + char *outname = maketempname (++tempcount); + FILE *ostream = fopen (outname, "w"); + long tempsize = 0; + + if (!ostream) + pfatal_with_name (outname); + tempfiles[i] = outname; + + /* Copy lines into this temp file as long as it does not make file + "too big" or until there are no more lines. */ + + while (tempsize + linelength + 1 <= MAX_IN_CORE_SORT) + { + tempsize += linelength + 1; + fputs (lb.buffer, ostream); + putc ('\n', ostream); + + /* Read another line of input data. */ + + linelength = readline (&lb, istream); + if (!linelength && feof (istream)) + break; + + if (lb.buffer[0] != '\\' && lb.buffer[0] != '@') + { + error ("%s: not a texinfo index file", infile); + failure = 1; + goto fail; + } + } + fclose (ostream); + if (feof (istream)) + break; + } + + free (lb.buffer); + +fail: + /* Record number of temp files we actually needed. */ + + ntemps = i; + + /* Sort each tempfile into another tempfile. + Delete the first set of tempfiles and put the names of the second + into `tempfiles'. */ + + for (i = 0; i < ntemps; i++) + { + char *newtemp = maketempname (++tempcount); + sort_in_core (&tempfiles[i], MAX_IN_CORE_SORT, newtemp); + if (!keep_tempfiles) + unlink (tempfiles[i]); + tempfiles[i] = newtemp; + } + + if (failure) + return; + + /* Merge the tempfiles together and indexify. */ + + merge_files (tempfiles, ntemps, outfile); +} + +/* Sort INFILE, whose size is TOTAL, + assuming that is small enough to be done in-core, + then indexify it and send the output to OUTFILE (or to stdout). */ + +void +sort_in_core (infile, total, outfile) + char *infile; + long total; + char *outfile; +{ + char **nextline; + char *data = (char *) xmalloc (total + 1); + char *file_data; + long file_size; + int i; + FILE *ostream = stdout; + struct lineinfo *lineinfo; + + /* Read the contents of the file into the moby array `data'. */ + + int desc = open (infile, O_RDONLY, 0); + + if (desc < 0) + fatal ("failure reopening %s", infile); + for (file_size = 0;;) + { + i = read (desc, data + file_size, total - file_size); + if (i <= 0) + break; + file_size += i; + } + file_data = data; + data[file_size] = 0; + + close (desc); + + if (file_size > 0 && data[0] != '\\' && data[0] != '@') + { + error ("%s: not a texinfo index file", infile); + return; + } + + init_char_order (); + + /* Sort routines want to know this address. */ + + text_base = data; + + /* Create the array of pointers to lines, with a default size + frequently enough. */ + + nlines = total / 50; + if (!nlines) + nlines = 2; + linearray = (char **) xmalloc (nlines * sizeof (char *)); + + /* `nextline' points to the next free slot in this array. + `nlines' is the allocated size. */ + + nextline = linearray; + + /* Parse the input file's data, and make entries for the lines. */ + + nextline = parsefile (infile, nextline, file_data, file_size); + if (nextline == 0) + { + error ("%s: not a texinfo index file", infile); + return; + } + + /* Sort the lines. */ + + /* If we have enough space, find the first keyfield of each line in advance. + Make a `struct lineinfo' for each line, which records the keyfield + as well as the line, and sort them. */ + + lineinfo = (struct lineinfo *) malloc ((nextline - linearray) * sizeof (struct lineinfo)); + + if (lineinfo) + { + struct lineinfo *lp; + char **p; + + for (lp = lineinfo, p = linearray; p != nextline; lp++, p++) + { + lp->text = *p; + lp->key.text = find_field (keyfields, *p, &lp->keylen); + if (keyfields->numeric) + lp->key.number = find_value (lp->key.text, lp->keylen); + } + + qsort (lineinfo, nextline - linearray, sizeof (struct lineinfo), compare_prepared); + + for (lp = lineinfo, p = linearray; p != nextline; lp++, p++) + *p = lp->text; + + free (lineinfo); + } + else + qsort (linearray, nextline - linearray, sizeof (char *), compare_full); + + /* Open the output file. */ + + if (outfile) + { + ostream = fopen (outfile, "w"); + if (!ostream) + pfatal_with_name (outfile); + } + + writelines (linearray, nextline - linearray, ostream); + if (outfile) + fclose (ostream); + + free (linearray); + free (data); +} + +/* Parse an input string in core into lines. + DATA is the input string, and SIZE is its length. + Data goes in LINEARRAY starting at NEXTLINE. + The value returned is the first entry in LINEARRAY still unused. + Value 0 means input file contents are invalid. */ + +char ** +parsefile (filename, nextline, data, size) + char *filename; + char **nextline; + char *data; + long size; +{ + char *p, *end; + char **line = nextline; + + p = data; + end = p + size; + *end = 0; + + while (p != end) + { + if (p[0] != '\\' && p[0] != '@') + return 0; + + *line = p; + while (*p && *p != '\n') + p++; + if (p != end) + p++; + + line++; + if (line == linearray + nlines) + { + char **old = linearray; + linearray = (char **) xrealloc (linearray, sizeof (char *) * (nlines *= 4)); + line += linearray - old; + } + } + + return line; +} + +/* Indexification is a filter applied to the sorted lines + as they are being written to the output file. + Multiple entries for the same name, with different page numbers, + get combined into a single entry with multiple page numbers. + The first braced field, which is used for sorting, is discarded. + However, its first character is examined, folded to lower case, + and if it is different from that in the previous line fed to us + a \initial line is written with one argument, the new initial. + + If an entry has four braced fields, then the second and third + constitute primary and secondary names. + In this case, each change of primary name + generates a \primary line which contains only the primary name, + and in between these are \secondary lines which contain + just a secondary name and page numbers. */ + +/* The last primary name we wrote a \primary entry for. + If only one level of indexing is being done, this is the last name seen. */ +char *lastprimary; +/* Length of storage allocated for lastprimary. */ +int lastprimarylength; + +/* Similar, for the secondary name. */ +char *lastsecondary; +int lastsecondarylength; + +/* Zero if we are not in the middle of writing an entry. + One if we have written the beginning of an entry but have not + yet written any page numbers into it. + Greater than one if we have written the beginning of an entry + plus at least one page number. */ +int pending; + +/* The initial (for sorting purposes) of the last primary entry written. + When this changes, a \initial {c} line is written */ + +char *lastinitial; + +int lastinitiallength; + +/* When we need a string of length 1 for the value of lastinitial, + store it here. */ + +char lastinitial1[2]; + +/* Initialize static storage for writing an index. */ + +static void +xbzero(s, n) + char *s; + int n; +{ + register char *p; + for (p = s; n--; ) + *p++ = '\0'; +} + +void +init_index () +{ + pending = 0; + lastinitial = lastinitial1; + lastinitial1[0] = 0; + lastinitial1[1] = 0; + lastinitiallength = 0; + lastprimarylength = 100; + lastprimary = (char *) xmalloc (lastprimarylength + 1); + xbzero (lastprimary, lastprimarylength + 1); + lastsecondarylength = 100; + lastsecondary = (char *) xmalloc (lastsecondarylength + 1); + xbzero (lastsecondary, lastsecondarylength + 1); +} + +/* Indexify. Merge entries for the same name, + insert headers for each initial character, etc. */ + +void +indexify (line, ostream) + char *line; + FILE *ostream; +{ + char *primary, *secondary, *pagenumber; + int primarylength, secondarylength = 0, pagelength; + int nosecondary; + int initiallength; + char *initial; + char initial1[2]; + register char *p; + + /* First, analyze the parts of the entry fed to us this time. */ + + p = find_braced_pos (line, 0, 0, 0); + if (*p == '{') + { + initial = p; + /* Get length of inner pair of braces starting at `p', + including that inner pair of braces. */ + initiallength = find_braced_end (p + 1) + 1 - p; + } + else + { + initial = initial1; + initial1[0] = *p; + initial1[1] = 0; + initiallength = 1; + + if (initial1[0] >= 'a' && initial1[0] <= 'z') + initial1[0] -= 040; + } + + pagenumber = find_braced_pos (line, 1, 0, 0); + pagelength = find_braced_end (pagenumber) - pagenumber; + if (pagelength == 0) + abort (); + + primary = find_braced_pos (line, 2, 0, 0); + primarylength = find_braced_end (primary) - primary; + + secondary = find_braced_pos (line, 3, 0, 0); + nosecondary = !*secondary; + if (!nosecondary) + secondarylength = find_braced_end (secondary) - secondary; + + /* If the primary is different from before, make a new primary entry. */ + if (strncmp (primary, lastprimary, primarylength)) + { + /* Close off current secondary entry first, if one is open. */ + if (pending) + { + fputs ("}\n", ostream); + pending = 0; + } + + /* If this primary has a different initial, include an entry for + the initial. */ + if (initiallength != lastinitiallength || + strncmp (initial, lastinitial, initiallength)) + { + fprintf (ostream, "\\initial {"); + fwrite (initial, 1, initiallength, ostream); + fprintf (ostream, "}\n", initial); + if (initial == initial1) + { + lastinitial = lastinitial1; + *lastinitial1 = *initial1; + } + else + { + lastinitial = initial; + } + lastinitiallength = initiallength; + } + + /* Make the entry for the primary. */ + if (nosecondary) + fputs ("\\entry {", ostream); + else + fputs ("\\primary {", ostream); + fwrite (primary, primarylength, 1, ostream); + if (nosecondary) + { + fputs ("}{", ostream); + pending = 1; + } + else + fputs ("}\n", ostream); + + /* Record name of most recent primary. */ + if (lastprimarylength < primarylength) + { + lastprimarylength = primarylength + 100; + lastprimary = (char *) xrealloc (lastprimary, + 1 + lastprimarylength); + } + strncpy (lastprimary, primary, primarylength); + lastprimary[primarylength] = 0; + + /* There is no current secondary within this primary, now. */ + lastsecondary[0] = 0; + } + + /* Should not have an entry with no subtopic following one with a subtopic. */ + + if (nosecondary && *lastsecondary) + error ("entry %s follows an entry with a secondary name", line); + + /* Start a new secondary entry if necessary. */ + if (!nosecondary && strncmp (secondary, lastsecondary, secondarylength)) + { + if (pending) + { + fputs ("}\n", ostream); + pending = 0; + } + + /* Write the entry for the secondary. */ + fputs ("\\secondary {", ostream); + fwrite (secondary, secondarylength, 1, ostream); + fputs ("}{", ostream); + pending = 1; + + /* Record name of most recent secondary. */ + if (lastsecondarylength < secondarylength) + { + lastsecondarylength = secondarylength + 100; + lastsecondary = (char *) xrealloc (lastsecondary, + 1 + lastsecondarylength); + } + strncpy (lastsecondary, secondary, secondarylength); + lastsecondary[secondarylength] = 0; + } + + /* Here to add one more page number to the current entry. */ + if (pending++ != 1) + fputs (", ", ostream); /* Punctuate first, if this is not the first. */ + fwrite (pagenumber, pagelength, 1, ostream); +} + +/* Close out any unfinished output entry. */ + +void +finish_index (ostream) + FILE *ostream; +{ + if (pending) + fputs ("}\n", ostream); + free (lastprimary); + free (lastsecondary); +} + +/* Copy the lines in the sorted order. + Each line is copied out of the input file it was found in. */ + +void +writelines (linearray, nlines, ostream) + char **linearray; + int nlines; + FILE *ostream; +{ + char **stop_line = linearray + nlines; + char **next_line; + + init_index (); + + /* Output the text of the lines, and free the buffer space. */ + + for (next_line = linearray; next_line != stop_line; next_line++) + { + /* If -u was specified, output the line only if distinct from previous one. */ + if (next_line == linearray + /* Compare previous line with this one, using only the + explicitly specd keyfields. */ + || compare_general (*(next_line - 1), *next_line, 0L, 0L, num_keyfields - 1)) + { + char *p = *next_line; + char c; + + while ((c = *p++) && c != '\n') + /* Do nothing. */ ; + *(p - 1) = 0; + indexify (*next_line, ostream); + } + } + + finish_index (ostream); +} + +/* Assume (and optionally verify) that each input file is sorted; + merge them and output the result. + Returns nonzero if any input file fails to be sorted. + + This is the high-level interface that can handle an unlimited + number of files. */ + +#define MAX_DIRECT_MERGE 10 + +int +merge_files (infiles, nfiles, outfile) + char **infiles; + int nfiles; + char *outfile; +{ + char **tempfiles; + int ntemps; + int i; + int value = 0; + int start_tempcount = tempcount; + + if (nfiles <= MAX_DIRECT_MERGE) + return merge_direct (infiles, nfiles, outfile); + + /* Merge groups of MAX_DIRECT_MERGE input files at a time, + making a temporary file to hold each group's result. */ + + ntemps = (nfiles + MAX_DIRECT_MERGE - 1) / MAX_DIRECT_MERGE; + tempfiles = (char **) xmalloc (ntemps * sizeof (char *)); + for (i = 0; i < ntemps; i++) + { + int nf = MAX_DIRECT_MERGE; + if (i + 1 == ntemps) + nf = nfiles - i * MAX_DIRECT_MERGE; + tempfiles[i] = maketempname (++tempcount); + value |= merge_direct (&infiles[i * MAX_DIRECT_MERGE], nf, tempfiles[i]); + } + + /* All temporary files that existed before are no longer needed + since their contents have been merged into our new tempfiles. + So delete them. */ + flush_tempfiles (start_tempcount); + + /* Now merge the temporary files we created. */ + + merge_files (tempfiles, ntemps, outfile); + + free (tempfiles); + + return value; +} + +/* Assume (and optionally verify) that each input file is sorted; + merge them and output the result. + Returns nonzero if any input file fails to be sorted. + + This version of merging will not work if the number of + input files gets too high. Higher level functions + use it only with a bounded number of input files. */ + +int +merge_direct (infiles, nfiles, outfile) + char **infiles; + int nfiles; + char *outfile; +{ + struct linebuffer *lb1, *lb2; + struct linebuffer **thisline, **prevline; + FILE **streams; + int i; + int nleft; + int lossage = 0; + int *file_lossage; + struct linebuffer *prev_out = 0; + FILE *ostream = stdout; + + if (outfile) + { + ostream = fopen (outfile, "w"); + } + if (!ostream) + pfatal_with_name (outfile); + + init_index (); + + if (nfiles == 0) + { + if (outfile) + fclose (ostream); + return 0; + } + + /* For each file, make two line buffers. + Also, for each file, there is an element of `thisline' + which points at any time to one of the file's two buffers, + and an element of `prevline' which points to the other buffer. + `thisline' is supposed to point to the next available line from the file, + while `prevline' holds the last file line used, + which is remembered so that we can verify that the file is properly sorted. */ + + /* lb1 and lb2 contain one buffer each per file. */ + lb1 = (struct linebuffer *) xmalloc (nfiles * sizeof (struct linebuffer)); + lb2 = (struct linebuffer *) xmalloc (nfiles * sizeof (struct linebuffer)); + + /* thisline[i] points to the linebuffer holding the next available line in file i, + or is zero if there are no lines left in that file. */ + thisline = (struct linebuffer **) + xmalloc (nfiles * sizeof (struct linebuffer *)); + /* prevline[i] points to the linebuffer holding the last used line + from file i. This is just for verifying that file i is properly + sorted. */ + prevline = (struct linebuffer **) + xmalloc (nfiles * sizeof (struct linebuffer *)); + /* streams[i] holds the input stream for file i. */ + streams = (FILE **) xmalloc (nfiles * sizeof (FILE *)); + /* file_lossage[i] is nonzero if we already know file i is not + properly sorted. */ + file_lossage = (int *) xmalloc (nfiles * sizeof (int)); + + /* Allocate and initialize all that storage. */ + + for (i = 0; i < nfiles; i++) + { + initbuffer (&lb1[i]); + initbuffer (&lb2[i]); + thisline[i] = &lb1[i]; + prevline[i] = &lb2[i]; + file_lossage[i] = 0; + streams[i] = fopen (infiles[i], "r"); + if (!streams[i]) + pfatal_with_name (infiles[i]); + + readline (thisline[i], streams[i]); + } + + /* Keep count of number of files not at eof. */ + nleft = nfiles; + + while (nleft) + { + struct linebuffer *best = 0; + struct linebuffer *exch; + int bestfile = -1; + int i; + + /* Look at the next avail line of each file; choose the least one. */ + + for (i = 0; i < nfiles; i++) + { + if (thisline[i] && + (!best || + 0 < compare_general (best->buffer, thisline[i]->buffer, + (long) bestfile, (long) i, num_keyfields))) + { + best = thisline[i]; + bestfile = i; + } + } + + /* Output that line, unless it matches the previous one and we + don't want duplicates. */ + + if (!(prev_out && + !compare_general (prev_out->buffer, + best->buffer, 0L, 1L, num_keyfields - 1))) + indexify (best->buffer, ostream); + prev_out = best; + + /* Now make the line the previous of its file, and fetch a new + line from that file. */ + + exch = prevline[bestfile]; + prevline[bestfile] = thisline[bestfile]; + thisline[bestfile] = exch; + + while (1) + { + /* If the file has no more, mark it empty. */ + + if (feof (streams[bestfile])) + { + thisline[bestfile] = 0; + /* Update the number of files still not empty. */ + nleft--; + break; + } + readline (thisline[bestfile], streams[bestfile]); + if (thisline[bestfile]->buffer[0] || !feof (streams[bestfile])) + break; + } + } + + finish_index (ostream); + + /* Free all storage and close all input streams. */ + + for (i = 0; i < nfiles; i++) + { + fclose (streams[i]); + free (lb1[i].buffer); + free (lb2[i].buffer); + } + free (file_lossage); + free (lb1); + free (lb2); + free (thisline); + free (prevline); + free (streams); + + if (outfile) + fclose (ostream); + + return lossage; +} + +/* Print error message and exit. */ + +void +fatal (s1, s2) + char *s1, *s2; +{ + error (s1, s2); + exit (TI_FATAL_ERROR); +} + +/* Print error message. S1 is printf control string, S2 is arg for it. */ + +void +error (s1, s2) + char *s1, *s2; +{ + printf ("%s: ", program_name); + printf (s1, s2); + printf ("\n"); +} + +#if !defined (HAVE_STRERROR) +static char * +strerror (n) + int n; +{ + static char ebuf[40]; + + if (n < sys_nerr) + return sys_errlist[n]; + else + { + sprintf (ebuf, "Unknown error %d", n); + return ebuf; + } +} +#endif + +void +perror_with_name (name) + char *name; +{ + char *s; + + s = concat ("", strerror (errno), " for %s"); + error (s, name); +} + +void +pfatal_with_name (name) + char *name; +{ + char *s; + + s = concat ("", strerror (errno), " for %s"); + fatal (s, name); +} + +/* Return a newly-allocated string whose contents concatenate those of + S1, S2, S3. */ + +char * +concat (s1, s2, s3) + char *s1, *s2, *s3; +{ + int len1 = strlen (s1), len2 = strlen (s2), len3 = strlen (s3); + char *result = (char *) xmalloc (len1 + len2 + len3 + 1); + + strcpy (result, s1); + strcpy (result + len1, s2); + strcpy (result + len1 + len2, s3); + *(result + len1 + len2 + len3) = 0; + + return result; +} + +/* Just like malloc, but kills the program in case of fatal error. */ +void * +xmalloc (nbytes) + int nbytes; +{ + void *temp = (void *) malloc (nbytes); + + if (nbytes && temp == (void *)NULL) + memory_error ("xmalloc", nbytes); + + return (temp); +} + +/* Like realloc (), but barfs if there isn't enough memory. */ +void * +xrealloc (pointer, nbytes) + void *pointer; + int nbytes; +{ + void *temp; + + if (!pointer) + temp = (void *)xmalloc (nbytes); + else + temp = (void *)realloc (pointer, nbytes); + + if (nbytes && !temp) + memory_error ("xrealloc", nbytes); + + return (temp); +} + +memory_error (callers_name, bytes_wanted) + char *callers_name; + int bytes_wanted; +{ + char printable_string[80]; + + sprintf (printable_string, + "Virtual memory exhausted in %s ()! Needed %d bytes.", + callers_name, bytes_wanted); + + error (printable_string, ""); + abort (); +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/emacs_keymap.c Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,885 @@ +/* emacs_keymap.c -- the keymap for emacs_mode in readline (). */ + +/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc. + + This file is part of the GNU Readline Library, a library for + reading lines of text with interactive input and history editing. + + The GNU Readline Library is free software; you can redistribute it + and/or modify it under the terms of the GNU General Public License + as published by the Free Software Foundation; either version 1, or + (at your option) any later version. + + The GNU Readline Library is distributed in the hope that it will be + useful, but WITHOUT ANY WARRANTY; without even the implied warranty + of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + The GNU General Public License is often shipped with GNU software, and + is generally kept in a file called COPYING or LICENSE. If you do not + have a copy of the license, write to the Free Software Foundation, + 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#if !defined (BUFSIZ) +#include <stdio.h> +#endif /* !BUFSIZ */ + +#include "readline.h" + +/* An array of function pointers, one for each possible key. + If the type byte is ISKMAP, then the pointer is the address of + a keymap. */ + +KEYMAP_ENTRY_ARRAY emacs_standard_keymap = { + + /* Control keys. */ + { ISFUNC, (Function *)0x0 }, /* Control-@ */ + { ISFUNC, rl_beg_of_line }, /* Control-a */ + { ISFUNC, rl_backward }, /* Control-b */ + { ISFUNC, (Function *)0x0 }, /* Control-c */ + { ISFUNC, rl_delete }, /* Control-d */ + { ISFUNC, rl_end_of_line }, /* Control-e */ + { ISFUNC, rl_forward }, /* Control-f */ + { ISFUNC, rl_abort }, /* Control-g */ + { ISFUNC, rl_rubout }, /* Control-h */ + { ISFUNC, rl_complete }, /* Control-i */ + { ISFUNC, rl_newline }, /* Control-j */ + { ISFUNC, rl_kill_line }, /* Control-k */ + { ISFUNC, rl_clear_screen }, /* Control-l */ + { ISFUNC, rl_newline }, /* Control-m */ + { ISFUNC, rl_get_next_history }, /* Control-n */ + { ISFUNC, (Function *)0x0 }, /* Control-o */ + { ISFUNC, rl_get_previous_history }, /* Control-p */ + { ISFUNC, rl_quoted_insert }, /* Control-q */ + { ISFUNC, rl_reverse_search_history }, /* Control-r */ + { ISFUNC, rl_forward_search_history }, /* Control-s */ + { ISFUNC, rl_transpose_chars }, /* Control-t */ + { ISFUNC, rl_unix_line_discard }, /* Control-u */ + { ISFUNC, rl_quoted_insert }, /* Control-v */ + { ISFUNC, rl_unix_word_rubout }, /* Control-w */ + { ISKMAP, (Function *)emacs_ctlx_keymap }, /* Control-x */ + { ISFUNC, rl_yank }, /* Control-y */ + { ISFUNC, (Function *)0x0 }, /* Control-z */ + { ISKMAP, (Function *)emacs_meta_keymap }, /* Control-[ */ + { ISFUNC, (Function *)0x0 }, /* Control-\ */ + { ISFUNC, (Function *)0x0 }, /* Control-] */ + { ISFUNC, (Function *)0x0 }, /* Control-^ */ + { ISFUNC, rl_undo_command }, /* Control-_ */ + + /* The start of printing characters. */ + { ISFUNC, rl_insert }, /* SPACE */ + { ISFUNC, rl_insert }, /* ! */ + { ISFUNC, rl_insert }, /* " */ + { ISFUNC, rl_insert }, /* # */ + { ISFUNC, rl_insert }, /* $ */ + { ISFUNC, rl_insert }, /* % */ + { ISFUNC, rl_insert }, /* & */ + { ISFUNC, rl_insert }, /* ' */ + { ISFUNC, rl_insert }, /* ( */ +#if defined (PAREN_MATCHING) + { ISFUNC, rl_insert_close }, /* ) */ +#else + { ISFUNC, rl_insert }, /* ) */ +#endif /* !PAREN_MATCHING */ + { ISFUNC, rl_insert }, /* * */ + { ISFUNC, rl_insert }, /* + */ + { ISFUNC, rl_insert }, /* , */ + { ISFUNC, rl_insert }, /* - */ + { ISFUNC, rl_insert }, /* . */ + { ISFUNC, rl_insert }, /* / */ + + /* Regular digits. */ + { ISFUNC, rl_insert }, /* 0 */ + { ISFUNC, rl_insert }, /* 1 */ + { ISFUNC, rl_insert }, /* 2 */ + { ISFUNC, rl_insert }, /* 3 */ + { ISFUNC, rl_insert }, /* 4 */ + { ISFUNC, rl_insert }, /* 5 */ + { ISFUNC, rl_insert }, /* 6 */ + { ISFUNC, rl_insert }, /* 7 */ + { ISFUNC, rl_insert }, /* 8 */ + { ISFUNC, rl_insert }, /* 9 */ + + /* A little more punctuation. */ + { ISFUNC, rl_insert }, /* : */ + { ISFUNC, rl_insert }, /* ; */ + { ISFUNC, rl_insert }, /* < */ + { ISFUNC, rl_insert }, /* = */ + { ISFUNC, rl_insert }, /* > */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* @ */ + + /* Uppercase alphabet. */ + { ISFUNC, rl_insert }, /* A */ + { ISFUNC, rl_insert }, /* B */ + { ISFUNC, rl_insert }, /* C */ + { ISFUNC, rl_insert }, /* D */ + { ISFUNC, rl_insert }, /* E */ + { ISFUNC, rl_insert }, /* F */ + { ISFUNC, rl_insert }, /* G */ + { ISFUNC, rl_insert }, /* H */ + { ISFUNC, rl_insert }, /* I */ + { ISFUNC, rl_insert }, /* J */ + { ISFUNC, rl_insert }, /* K */ + { ISFUNC, rl_insert }, /* L */ + { ISFUNC, rl_insert }, /* M */ + { ISFUNC, rl_insert }, /* N */ + { ISFUNC, rl_insert }, /* O */ + { ISFUNC, rl_insert }, /* P */ + { ISFUNC, rl_insert }, /* Q */ + { ISFUNC, rl_insert }, /* R */ + { ISFUNC, rl_insert }, /* S */ + { ISFUNC, rl_insert }, /* T */ + { ISFUNC, rl_insert }, /* U */ + { ISFUNC, rl_insert }, /* V */ + { ISFUNC, rl_insert }, /* W */ + { ISFUNC, rl_insert }, /* X */ + { ISFUNC, rl_insert }, /* Y */ + { ISFUNC, rl_insert }, /* Z */ + + /* Some more punctuation. */ + { ISFUNC, rl_insert }, /* [ */ + { ISFUNC, rl_insert }, /* \ */ +#if defined (PAREN_MATCHING) + { ISFUNC, rl_insert_close }, /* ] */ +#else + { ISFUNC, rl_insert }, /* ] */ +#endif /* !PAREN_MATCHING */ + { ISFUNC, rl_insert }, /* ^ */ + { ISFUNC, rl_insert }, /* _ */ + { ISFUNC, rl_insert }, /* ` */ + + /* Lowercase alphabet. */ + { ISFUNC, rl_insert }, /* a */ + { ISFUNC, rl_insert }, /* b */ + { ISFUNC, rl_insert }, /* c */ + { ISFUNC, rl_insert }, /* d */ + { ISFUNC, rl_insert }, /* e */ + { ISFUNC, rl_insert }, /* f */ + { ISFUNC, rl_insert }, /* g */ + { ISFUNC, rl_insert }, /* h */ + { ISFUNC, rl_insert }, /* i */ + { ISFUNC, rl_insert }, /* j */ + { ISFUNC, rl_insert }, /* k */ + { ISFUNC, rl_insert }, /* l */ + { ISFUNC, rl_insert }, /* m */ + { ISFUNC, rl_insert }, /* n */ + { ISFUNC, rl_insert }, /* o */ + { ISFUNC, rl_insert }, /* p */ + { ISFUNC, rl_insert }, /* q */ + { ISFUNC, rl_insert }, /* r */ + { ISFUNC, rl_insert }, /* s */ + { ISFUNC, rl_insert }, /* t */ + { ISFUNC, rl_insert }, /* u */ + { ISFUNC, rl_insert }, /* v */ + { ISFUNC, rl_insert }, /* w */ + { ISFUNC, rl_insert }, /* x */ + { ISFUNC, rl_insert }, /* y */ + { ISFUNC, rl_insert }, /* z */ + + /* Final punctuation. */ + { ISFUNC, rl_insert }, /* { */ + { ISFUNC, rl_insert }, /* | */ +#if defined (PAREN_MATCHING) + { ISFUNC, rl_insert_close }, /* } */ +#else + { ISFUNC, rl_insert }, /* } */ +#endif /* !PAREN_MATCHING */ + { ISFUNC, rl_insert }, /* ~ */ + { ISFUNC, rl_rubout }, /* RUBOUT */ + +#if KEYMAP_SIZE > 128 + /* Pure 8-bit characters (128 - 159). + These might be used in some + character sets. */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + + /* ISO Latin-1 characters (160 - 255) */ + { ISFUNC, rl_insert }, /* No-break space */ + { ISFUNC, rl_insert }, /* Inverted exclamation mark */ + { ISFUNC, rl_insert }, /* Cent sign */ + { ISFUNC, rl_insert }, /* Pound sign */ + { ISFUNC, rl_insert }, /* Currency sign */ + { ISFUNC, rl_insert }, /* Yen sign */ + { ISFUNC, rl_insert }, /* Broken bar */ + { ISFUNC, rl_insert }, /* Section sign */ + { ISFUNC, rl_insert }, /* Diaeresis */ + { ISFUNC, rl_insert }, /* Copyright sign */ + { ISFUNC, rl_insert }, /* Feminine ordinal indicator */ + { ISFUNC, rl_insert }, /* Left pointing double angle quotation mark */ + { ISFUNC, rl_insert }, /* Not sign */ + { ISFUNC, rl_insert }, /* Soft hyphen */ + { ISFUNC, rl_insert }, /* Registered sign */ + { ISFUNC, rl_insert }, /* Macron */ + { ISFUNC, rl_insert }, /* Degree sign */ + { ISFUNC, rl_insert }, /* Plus-minus sign */ + { ISFUNC, rl_insert }, /* Superscript two */ + { ISFUNC, rl_insert }, /* Superscript three */ + { ISFUNC, rl_insert }, /* Acute accent */ + { ISFUNC, rl_insert }, /* Micro sign */ + { ISFUNC, rl_insert }, /* Pilcrow sign */ + { ISFUNC, rl_insert }, /* Middle dot */ + { ISFUNC, rl_insert }, /* Cedilla */ + { ISFUNC, rl_insert }, /* Superscript one */ + { ISFUNC, rl_insert }, /* Masculine ordinal indicator */ + { ISFUNC, rl_insert }, /* Right pointing double angle quotation mark */ + { ISFUNC, rl_insert }, /* Vulgar fraction one quarter */ + { ISFUNC, rl_insert }, /* Vulgar fraction one half */ + { ISFUNC, rl_insert }, /* Vulgar fraction three quarters */ + { ISFUNC, rl_insert }, /* Inverted questionk mark */ + { ISFUNC, rl_insert }, /* Latin capital letter a with grave */ + { ISFUNC, rl_insert }, /* Latin capital letter a with acute */ + { ISFUNC, rl_insert }, /* Latin capital letter a with circumflex */ + { ISFUNC, rl_insert }, /* Latin capital letter a with tilde */ + { ISFUNC, rl_insert }, /* Latin capital letter a with diaeresis */ + { ISFUNC, rl_insert }, /* Latin capital letter a with ring above */ + { ISFUNC, rl_insert }, /* Latin capital letter ae */ + { ISFUNC, rl_insert }, /* Latin capital letter c with cedilla */ + { ISFUNC, rl_insert }, /* Latin capital letter e with grave */ + { ISFUNC, rl_insert }, /* Latin capital letter e with acute */ + { ISFUNC, rl_insert }, /* Latin capital letter e with circumflex */ + { ISFUNC, rl_insert }, /* Latin capital letter e with diaeresis */ + { ISFUNC, rl_insert }, /* Latin capital letter i with grave */ + { ISFUNC, rl_insert }, /* Latin capital letter i with acute */ + { ISFUNC, rl_insert }, /* Latin capital letter i with circumflex */ + { ISFUNC, rl_insert }, /* Latin capital letter i with diaeresis */ + { ISFUNC, rl_insert }, /* Latin capital letter eth (Icelandic) */ + { ISFUNC, rl_insert }, /* Latin capital letter n with tilde */ + { ISFUNC, rl_insert }, /* Latin capital letter o with grave */ + { ISFUNC, rl_insert }, /* Latin capital letter o with acute */ + { ISFUNC, rl_insert }, /* Latin capital letter o with circumflex */ + { ISFUNC, rl_insert }, /* Latin capital letter o with tilde */ + { ISFUNC, rl_insert }, /* Latin capital letter o with diaeresis */ + { ISFUNC, rl_insert }, /* Multiplication sign */ + { ISFUNC, rl_insert }, /* Latin capital letter o with stroke */ + { ISFUNC, rl_insert }, /* Latin capital letter u with grave */ + { ISFUNC, rl_insert }, /* Latin capital letter u with acute */ + { ISFUNC, rl_insert }, /* Latin capital letter u with circumflex */ + { ISFUNC, rl_insert }, /* Latin capital letter u with diaeresis */ + { ISFUNC, rl_insert }, /* Latin capital letter Y with acute */ + { ISFUNC, rl_insert }, /* Latin capital letter thorn (Icelandic) */ + { ISFUNC, rl_insert }, /* Latin small letter sharp s (German) */ + { ISFUNC, rl_insert }, /* Latin small letter a with grave */ + { ISFUNC, rl_insert }, /* Latin small letter a with acute */ + { ISFUNC, rl_insert }, /* Latin small letter a with circumflex */ + { ISFUNC, rl_insert }, /* Latin small letter a with tilde */ + { ISFUNC, rl_insert }, /* Latin small letter a with diaeresis */ + { ISFUNC, rl_insert }, /* Latin small letter a with ring above */ + { ISFUNC, rl_insert }, /* Latin small letter ae */ + { ISFUNC, rl_insert }, /* Latin small letter c with cedilla */ + { ISFUNC, rl_insert }, /* Latin small letter e with grave */ + { ISFUNC, rl_insert }, /* Latin small letter e with acute */ + { ISFUNC, rl_insert }, /* Latin small letter e with circumflex */ + { ISFUNC, rl_insert }, /* Latin small letter e with diaeresis */ + { ISFUNC, rl_insert }, /* Latin small letter i with grave */ + { ISFUNC, rl_insert }, /* Latin small letter i with acute */ + { ISFUNC, rl_insert }, /* Latin small letter i with circumflex */ + { ISFUNC, rl_insert }, /* Latin small letter i with diaeresis */ + { ISFUNC, rl_insert }, /* Latin small letter eth (Icelandic) */ + { ISFUNC, rl_insert }, /* Latin small letter n with tilde */ + { ISFUNC, rl_insert }, /* Latin small letter o with grave */ + { ISFUNC, rl_insert }, /* Latin small letter o with acute */ + { ISFUNC, rl_insert }, /* Latin small letter o with circumflex */ + { ISFUNC, rl_insert }, /* Latin small letter o with tilde */ + { ISFUNC, rl_insert }, /* Latin small letter o with diaeresis */ + { ISFUNC, rl_insert }, /* Division sign */ + { ISFUNC, rl_insert }, /* Latin small letter o with stroke */ + { ISFUNC, rl_insert }, /* Latin small letter u with grave */ + { ISFUNC, rl_insert }, /* Latin small letter u with acute */ + { ISFUNC, rl_insert }, /* Latin small letter u with circumflex */ + { ISFUNC, rl_insert }, /* Latin small letter u with diaeresis */ + { ISFUNC, rl_insert }, /* Latin small letter y with acute */ + { ISFUNC, rl_insert }, /* Latin small letter thorn (Icelandic) */ + { ISFUNC, rl_insert } /* Latin small letter y with diaeresis */ +#endif /* KEYMAP_SIZE > 128 */ +}; + +KEYMAP_ENTRY_ARRAY emacs_meta_keymap = { + + /* Meta keys. Just like above, but the high bit is set. */ + { ISFUNC, (Function *)0x0 }, /* Meta-Control-@ */ + { ISFUNC, (Function *)0x0 }, /* Meta-Control-a */ + { ISFUNC, (Function *)0x0 }, /* Meta-Control-b */ + { ISFUNC, (Function *)0x0 }, /* Meta-Control-c */ + { ISFUNC, (Function *)0x0 }, /* Meta-Control-d */ + { ISFUNC, (Function *)0x0 }, /* Meta-Control-e */ + { ISFUNC, (Function *)0x0 }, /* Meta-Control-f */ + { ISFUNC, rl_abort }, /* Meta-Control-g */ + { ISFUNC, rl_backward_kill_word }, /* Meta-Control-h */ + { ISFUNC, rl_tab_insert }, /* Meta-Control-i */ + { ISFUNC, rl_vi_editing_mode }, /* Meta-Control-j */ + { ISFUNC, (Function *)0x0 }, /* Meta-Control-k */ + { ISFUNC, (Function *)0x0 }, /* Meta-Control-l */ + { ISFUNC, rl_vi_editing_mode }, /* Meta-Control-m */ + { ISFUNC, (Function *)0x0 }, /* Meta-Control-n */ + { ISFUNC, (Function *)0x0 }, /* Meta-Control-o */ + { ISFUNC, (Function *)0x0 }, /* Meta-Control-p */ + { ISFUNC, (Function *)0x0 }, /* Meta-Control-q */ + { ISFUNC, rl_revert_line }, /* Meta-Control-r */ + { ISFUNC, (Function *)0x0 }, /* Meta-Control-s */ + { ISFUNC, (Function *)0x0 }, /* Meta-Control-t */ + { ISFUNC, (Function *)0x0 }, /* Meta-Control-u */ + { ISFUNC, (Function *)0x0 }, /* Meta-Control-v */ + { ISFUNC, (Function *)0x0 }, /* Meta-Control-w */ + { ISFUNC, (Function *)0x0 }, /* Meta-Control-x */ + { ISFUNC, rl_yank_nth_arg }, /* Meta-Control-y */ + { ISFUNC, (Function *)0x0 }, /* Meta-Control-z */ + + { ISFUNC, rl_complete }, /* Meta-Control-[ */ + { ISFUNC, (Function *)0x0 }, /* Meta-Control-\ */ + { ISFUNC, (Function *)0x0 }, /* Meta-Control-] */ + { ISFUNC, (Function *)0x0 }, /* Meta-Control-^ */ + { ISFUNC, (Function *)0x0 }, /* Meta-Control-_ */ + + /* The start of printing characters. */ + { ISFUNC, (Function *)0x0 }, /* Meta-SPACE */ + { ISFUNC, (Function *)0x0 }, /* Meta-! */ + { ISFUNC, (Function *)0x0 }, /* Meta-" */ + { ISFUNC, (Function *)0x0 }, /* Meta-# */ + { ISFUNC, (Function *)0x0 }, /* Meta-$ */ + { ISFUNC, (Function *)0x0 }, /* Meta-% */ + { ISFUNC, rl_tilde_expand }, /* Meta-& */ + { ISFUNC, (Function *)0x0 }, /* Meta-' */ + { ISFUNC, (Function *)0x0 }, /* Meta-( */ + { ISFUNC, (Function *)0x0 }, /* Meta-) */ + { ISFUNC, (Function *)0x0 }, /* Meta-* */ + { ISFUNC, (Function *)0x0 }, /* Meta-+ */ + { ISFUNC, (Function *)0x0 }, /* Meta-, */ + { ISFUNC, rl_digit_argument }, /* Meta-- */ + { ISFUNC, rl_yank_last_arg}, /* Meta-. */ + { ISFUNC, (Function *)0x0 }, /* Meta-/ */ + + /* Regular digits. */ + { ISFUNC, rl_digit_argument }, /* Meta-0 */ + { ISFUNC, rl_digit_argument }, /* Meta-1 */ + { ISFUNC, rl_digit_argument }, /* Meta-2 */ + { ISFUNC, rl_digit_argument }, /* Meta-3 */ + { ISFUNC, rl_digit_argument }, /* Meta-4 */ + { ISFUNC, rl_digit_argument }, /* Meta-5 */ + { ISFUNC, rl_digit_argument }, /* Meta-6 */ + { ISFUNC, rl_digit_argument }, /* Meta-7 */ + { ISFUNC, rl_digit_argument }, /* Meta-8 */ + { ISFUNC, rl_digit_argument }, /* Meta-9 */ + + /* A little more punctuation. */ + { ISFUNC, (Function *)0x0 }, /* Meta-: */ + { ISFUNC, (Function *)0x0 }, /* Meta-; */ + { ISFUNC, rl_beginning_of_history }, /* Meta-< */ + { ISFUNC, (Function *)0x0 }, /* Meta-= */ + { ISFUNC, rl_end_of_history }, /* Meta-> */ + { ISFUNC, rl_possible_completions }, /* Meta-? */ + { ISFUNC, (Function *)0x0 }, /* Meta-@ */ + + /* Uppercase alphabet. */ + { ISFUNC, rl_do_lowercase_version }, /* Meta-A */ + { ISFUNC, rl_do_lowercase_version }, /* Meta-B */ + { ISFUNC, rl_do_lowercase_version }, /* Meta-C */ + { ISFUNC, rl_do_lowercase_version }, /* Meta-D */ + { ISFUNC, rl_do_lowercase_version }, /* Meta-E */ + { ISFUNC, rl_do_lowercase_version }, /* Meta-F */ + { ISFUNC, rl_do_lowercase_version }, /* Meta-G */ + { ISFUNC, rl_do_lowercase_version }, /* Meta-H */ + { ISFUNC, rl_do_lowercase_version }, /* Meta-I */ + { ISFUNC, rl_do_lowercase_version }, /* Meta-J */ + { ISFUNC, rl_do_lowercase_version }, /* Meta-K */ + { ISFUNC, rl_do_lowercase_version }, /* Meta-L */ + { ISFUNC, rl_do_lowercase_version }, /* Meta-M */ + { ISFUNC, rl_do_lowercase_version }, /* Meta-N */ + { ISFUNC, rl_do_lowercase_version }, /* Meta-O */ + { ISFUNC, rl_do_lowercase_version }, /* Meta-P */ + { ISFUNC, rl_do_lowercase_version }, /* Meta-Q */ + { ISFUNC, rl_do_lowercase_version }, /* Meta-R */ + { ISFUNC, rl_do_lowercase_version }, /* Meta-S */ + { ISFUNC, rl_do_lowercase_version }, /* Meta-T */ + { ISFUNC, rl_do_lowercase_version }, /* Meta-U */ + { ISFUNC, rl_do_lowercase_version }, /* Meta-V */ + { ISFUNC, rl_do_lowercase_version }, /* Meta-W */ + { ISFUNC, rl_do_lowercase_version }, /* Meta-X */ + { ISFUNC, rl_do_lowercase_version }, /* Meta-Y */ + { ISFUNC, rl_do_lowercase_version }, /* Meta-Z */ + + /* Some more punctuation. */ + { ISFUNC, (Function *)0x0 }, /* Meta-[ */ /* was rl_arrow_keys */ + { ISFUNC, rl_delete_horizontal_space }, /* Meta-\ */ + { ISFUNC, (Function *)0x0 }, /* Meta-] */ + { ISFUNC, (Function *)0x0 }, /* Meta-^ */ + { ISFUNC, rl_yank_last_arg }, /* Meta-_ */ + { ISFUNC, (Function *)0x0 }, /* Meta-` */ + + /* Lowercase alphabet. */ + { ISFUNC, (Function *)0x0 }, /* Meta-a */ + { ISFUNC, rl_backward_word }, /* Meta-b */ + { ISFUNC, rl_capitalize_word }, /* Meta-c */ + { ISFUNC, rl_kill_word }, /* Meta-d */ + { ISFUNC, (Function *)0x0 }, /* Meta-e */ + { ISFUNC, rl_forward_word }, /* Meta-f */ + { ISFUNC, (Function *)0x0 }, /* Meta-g */ + { ISFUNC, (Function *)0x0 }, /* Meta-h */ + { ISFUNC, (Function *)0x0 }, /* Meta-i */ + { ISFUNC, (Function *)0x0 }, /* Meta-j */ + { ISFUNC, (Function *)0x0 }, /* Meta-k */ + { ISFUNC, rl_downcase_word }, /* Meta-l */ + { ISFUNC, (Function *)0x0 }, /* Meta-m */ + { ISFUNC, rl_noninc_forward_search }, /* Meta-n */ + { ISFUNC, (Function *)0x0 }, /* Meta-o */ /* was rl_arrow_keys */ + { ISFUNC, rl_noninc_reverse_search }, /* Meta-p */ + { ISFUNC, (Function *)0x0 }, /* Meta-q */ + { ISFUNC, rl_revert_line }, /* Meta-r */ + { ISFUNC, (Function *)0x0 }, /* Meta-s */ + { ISFUNC, rl_transpose_words }, /* Meta-t */ + { ISFUNC, rl_upcase_word }, /* Meta-u */ + { ISFUNC, (Function *)0x0 }, /* Meta-v */ + { ISFUNC, (Function *)0x0 }, /* Meta-w */ + { ISFUNC, (Function *)0x0 }, /* Meta-x */ + { ISFUNC, rl_yank_pop }, /* Meta-y */ + { ISFUNC, (Function *)0x0 }, /* Meta-z */ + + /* Final punctuation. */ + { ISFUNC, (Function *)0x0 }, /* Meta-{ */ + { ISFUNC, (Function *)0x0 }, /* Meta-| */ + { ISFUNC, (Function *)0x0 }, /* Meta-} */ + { ISFUNC, rl_tilde_expand }, /* Meta-~ */ + { ISFUNC, rl_backward_kill_word }, /* Meta-rubout */ + +#if KEYMAP_SIZE > 128 + /* Undefined keys. */ + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 } +#endif /* KEYMAP_SIZE > 128 */ +}; + +KEYMAP_ENTRY_ARRAY emacs_ctlx_keymap = { + + /* Control keys. */ + { ISFUNC, (Function *)0x0 }, /* Control-@ */ + { ISFUNC, (Function *)0x0 }, /* Control-a */ + { ISFUNC, (Function *)0x0 }, /* Control-b */ + { ISFUNC, (Function *)0x0 }, /* Control-c */ + { ISFUNC, (Function *)0x0 }, /* Control-d */ + { ISFUNC, (Function *)0x0 }, /* Control-e */ + { ISFUNC, (Function *)0x0 }, /* Control-f */ + { ISFUNC, rl_abort }, /* Control-g */ + { ISFUNC, (Function *)0x0 }, /* Control-h */ + { ISFUNC, (Function *)0x0 }, /* Control-i */ + { ISFUNC, (Function *)0x0 }, /* Control-j */ + { ISFUNC, (Function *)0x0 }, /* Control-k */ + { ISFUNC, (Function *)0x0 }, /* Control-l */ + { ISFUNC, (Function *)0x0 }, /* Control-m */ + { ISFUNC, (Function *)0x0 }, /* Control-n */ + { ISFUNC, (Function *)0x0 }, /* Control-o */ + { ISFUNC, (Function *)0x0 }, /* Control-p */ + { ISFUNC, (Function *)0x0 }, /* Control-q */ + { ISFUNC, rl_re_read_init_file }, /* Control-r */ + { ISFUNC, (Function *)0x0 }, /* Control-s */ + { ISFUNC, (Function *)0x0 }, /* Control-t */ + { ISFUNC, rl_undo_command }, /* Control-u */ + { ISFUNC, (Function *)0x0 }, /* Control-v */ + { ISFUNC, (Function *)0x0 }, /* Control-w */ + { ISFUNC, (Function *)0x0 }, /* Control-x */ + { ISFUNC, (Function *)0x0 }, /* Control-y */ + { ISFUNC, (Function *)0x0 }, /* Control-z */ + { ISFUNC, (Function *)0x0 }, /* Control-[ */ + { ISFUNC, (Function *)0x0 }, /* Control-\ */ + { ISFUNC, (Function *)0x0 }, /* Control-] */ + { ISFUNC, (Function *)0x0 }, /* Control-^ */ + { ISFUNC, (Function *)0x0 }, /* Control-_ */ + + /* The start of printing characters. */ + { ISFUNC, (Function *)0x0 }, /* SPACE */ + { ISFUNC, (Function *)0x0 }, /* ! */ + { ISFUNC, (Function *)0x0 }, /* " */ + { ISFUNC, (Function *)0x0 }, /* # */ + { ISFUNC, (Function *)0x0 }, /* $ */ + { ISFUNC, (Function *)0x0 }, /* % */ + { ISFUNC, (Function *)0x0 }, /* & */ + { ISFUNC, (Function *)0x0 }, /* ' */ + { ISFUNC, rl_start_kbd_macro }, /* ( */ + { ISFUNC, rl_end_kbd_macro }, /* ) */ + { ISFUNC, (Function *)0x0 }, /* * */ + { ISFUNC, (Function *)0x0 }, /* + */ + { ISFUNC, (Function *)0x0 }, /* , */ + { ISFUNC, (Function *)0x0 }, /* - */ + { ISFUNC, (Function *)0x0 }, /* . */ + { ISFUNC, (Function *)0x0 }, /* / */ + + /* Regular digits. */ + { ISFUNC, (Function *)0x0 }, /* 0 */ + { ISFUNC, (Function *)0x0 }, /* 1 */ + { ISFUNC, (Function *)0x0 }, /* 2 */ + { ISFUNC, (Function *)0x0 }, /* 3 */ + { ISFUNC, (Function *)0x0 }, /* 4 */ + { ISFUNC, (Function *)0x0 }, /* 5 */ + { ISFUNC, (Function *)0x0 }, /* 6 */ + { ISFUNC, (Function *)0x0 }, /* 7 */ + { ISFUNC, (Function *)0x0 }, /* 8 */ + { ISFUNC, (Function *)0x0 }, /* 9 */ + + /* A little more punctuation. */ + { ISFUNC, (Function *)0x0 }, /* : */ + { ISFUNC, (Function *)0x0 }, /* ; */ + { ISFUNC, (Function *)0x0 }, /* < */ + { ISFUNC, (Function *)0x0 }, /* = */ + { ISFUNC, (Function *)0x0 }, /* > */ + { ISFUNC, (Function *)0x0 }, /* ? */ + { ISFUNC, (Function *)0x0 }, /* @ */ + + /* Uppercase alphabet. */ + { ISFUNC, rl_do_lowercase_version }, /* A */ + { ISFUNC, rl_do_lowercase_version }, /* B */ + { ISFUNC, rl_do_lowercase_version }, /* C */ + { ISFUNC, rl_do_lowercase_version }, /* D */ + { ISFUNC, rl_do_lowercase_version }, /* E */ + { ISFUNC, rl_do_lowercase_version }, /* F */ + { ISFUNC, rl_do_lowercase_version }, /* G */ + { ISFUNC, rl_do_lowercase_version }, /* H */ + { ISFUNC, rl_do_lowercase_version }, /* I */ + { ISFUNC, rl_do_lowercase_version }, /* J */ + { ISFUNC, rl_do_lowercase_version }, /* K */ + { ISFUNC, rl_do_lowercase_version }, /* L */ + { ISFUNC, rl_do_lowercase_version }, /* M */ + { ISFUNC, rl_do_lowercase_version }, /* N */ + { ISFUNC, rl_do_lowercase_version }, /* O */ + { ISFUNC, rl_do_lowercase_version }, /* P */ + { ISFUNC, rl_do_lowercase_version }, /* Q */ + { ISFUNC, rl_do_lowercase_version }, /* R */ + { ISFUNC, rl_do_lowercase_version }, /* S */ + { ISFUNC, rl_do_lowercase_version }, /* T */ + { ISFUNC, rl_do_lowercase_version }, /* U */ + { ISFUNC, rl_do_lowercase_version }, /* V */ + { ISFUNC, rl_do_lowercase_version }, /* W */ + { ISFUNC, rl_do_lowercase_version }, /* X */ + { ISFUNC, rl_do_lowercase_version }, /* Y */ + { ISFUNC, rl_do_lowercase_version }, /* Z */ + + /* Some more punctuation. */ + { ISFUNC, (Function *)0x0 }, /* [ */ + { ISFUNC, (Function *)0x0 }, /* \ */ + { ISFUNC, (Function *)0x0 }, /* ] */ + { ISFUNC, (Function *)0x0 }, /* ^ */ + { ISFUNC, (Function *)0x0 }, /* _ */ + { ISFUNC, (Function *)0x0 }, /* ` */ + + /* Lowercase alphabet. */ + { ISFUNC, (Function *)0x0 }, /* a */ + { ISFUNC, (Function *)0x0 }, /* b */ + { ISFUNC, (Function *)0x0 }, /* c */ + { ISFUNC, (Function *)0x0 }, /* d */ + { ISFUNC, rl_call_last_kbd_macro }, /* e */ + { ISFUNC, (Function *)0x0 }, /* f */ + { ISFUNC, (Function *)0x0 }, /* g */ + { ISFUNC, (Function *)0x0 }, /* h */ + { ISFUNC, (Function *)0x0 }, /* i */ + { ISFUNC, (Function *)0x0 }, /* j */ + { ISFUNC, (Function *)0x0 }, /* k */ + { ISFUNC, (Function *)0x0 }, /* l */ + { ISFUNC, (Function *)0x0 }, /* m */ + { ISFUNC, (Function *)0x0 }, /* n */ + { ISFUNC, (Function *)0x0 }, /* o */ + { ISFUNC, (Function *)0x0 }, /* p */ + { ISFUNC, (Function *)0x0 }, /* q */ + { ISFUNC, (Function *)0x0 }, /* r */ + { ISFUNC, (Function *)0x0 }, /* s */ + { ISFUNC, (Function *)0x0 }, /* t */ + { ISFUNC, (Function *)0x0 }, /* u */ + { ISFUNC, (Function *)0x0 }, /* v */ + { ISFUNC, (Function *)0x0 }, /* w */ + { ISFUNC, (Function *)0x0 }, /* x */ + { ISFUNC, (Function *)0x0 }, /* y */ + { ISFUNC, (Function *)0x0 }, /* z */ + + /* Final punctuation. */ + { ISFUNC, (Function *)0x0 }, /* { */ + { ISFUNC, (Function *)0x0 }, /* | */ + { ISFUNC, (Function *)0x0 }, /* } */ + { ISFUNC, (Function *)0x0 }, /* ~ */ + { ISFUNC, rl_backward_kill_line }, /* RUBOUT */ + +#if KEYMAP_SIZE > 128 + /* Undefined keys. */ + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 } +#endif /* KEYMAP_SIZE > 128 */ +};
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/examples/Inputrc Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,65 @@ +# My ~/.inputrc file is in -*- text -*- for easy editing with Emacs. +# +# Notice the various bindings which are conditionalized depending +# on which program is running, or what terminal is active. +# + +# In all programs, all terminals, make sure this is bound. +"\C-x\C-r": re-read-init-file + +# Hp terminals (and some others) have ugly default behaviour for C-h. +"\C-h": backward-delete-char +"\e\C-h": backward-kill-word +"\C-xd": dump-functions + +# In xterm windows, make the arrow keys do the right thing. +$if TERM=xterm +"\e[A": previous-history +"\e[B": next-history +"\e[C": forward-char +"\e[D": backward-char + +# alternate arrow key prefix +"\eOA": previous-history +"\eOB": next-history +"\eOC": forward-char +"\eOD": backward-char + +# Under Xterm in Bash, we bind local Function keys to do something useful. +$if Bash +"\e[11~": "Function Key 1" +"\e[12~": "Function Key 2" +"\e[13~": "Function Key 3" +"\e[14~": "Function Key 4" +"\e[15~": "Function Key 5" + +# I know the following escape sequence numbers are 1 greater than +# the function key. Don't ask me why, I didn't design the xterm terminal. +"\e[17~": "Function Key 6" +"\e[18~": "Function Key 7" +"\e[19~": "Function Key 8" +"\e[20~": "Function Key 9" +"\e[21~": "Function Key 10" +$endif +$endif + +# For Bash, all terminals, add some Bash specific hacks. +$if Bash +"\C-xv": show-bash-version +"\C-x\C-e": shell-expand-line + +# Here is one for editing my path. +"\C-xp": "$PATH\C-x\C-e\C-e\"\C-aPATH=\":\C-b" + +# Make C-x r read my mail in emacs. +# "\C-xr": "emacs -f rmail\C-j" +$endif + +# For FTP, different hacks: +$if Ftp +"\C-xg": "get \M-?" +"\C-xt": "put \M-?" +"\M-.": yank-last-arg +$endif + +" ": self-insert
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/examples/fileman.c Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,425 @@ +/* fileman.c -- A tiny application which demonstrates how to use the + GNU Readline library. This application interactively allows users + to manipulate files and their modes. */ + +#include <stdio.h> +#include <sys/types.h> +#include <sys/file.h> +#include <sys/stat.h> +#include <sys/errno.h> + +#include <readline/readline.h> +#include <readline/history.h> + +extern char *getwd (); +extern char *xmalloc (); + +/* The names of functions that actually do the manipulation. */ +int com_list (), com_view (), com_rename (), com_stat (), com_pwd (); +int com_delete (), com_help (), com_cd (), com_quit (); + +/* A structure which contains information on the commands this program + can understand. */ + +typedef struct { + char *name; /* User printable name of the function. */ + Function *func; /* Function to call to do the job. */ + char *doc; /* Documentation for this function. */ +} COMMAND; + +COMMAND commands[] = { + { "cd", com_cd, "Change to directory DIR" }, + { "delete", com_delete, "Delete FILE" }, + { "help", com_help, "Display this text" }, + { "?", com_help, "Synonym for `help'" }, + { "list", com_list, "List files in DIR" }, + { "ls", com_list, "Synonym for `list'" }, + { "pwd", com_pwd, "Print the current working directory" }, + { "quit", com_quit, "Quit using Fileman" }, + { "rename", com_rename, "Rename FILE to NEWNAME" }, + { "stat", com_stat, "Print out statistics on FILE" }, + { "view", com_view, "View the contents of FILE" }, + { (char *)NULL, (Function *)NULL, (char *)NULL } +}; + +/* Forward declarations. */ +char *stripwhite (); +COMMAND *find_command (); + +/* The name of this program, as taken from argv[0]. */ +char *progname; + +/* When non-zero, this global means the user is done using this program. */ +int done; + +char * +dupstr (s) + int s; +{ + char *r; + + r = xmalloc (strlen (s) + 1); + strcpy (r, s); + return (r); +} + +main (argc, argv) + int argc; + char **argv; +{ + char *line, *s; + + progname = argv[0]; + + initialize_readline (); /* Bind our completer. */ + + /* Loop reading and executing lines until the user quits. */ + for ( ; done == 0; ) + { + line = readline ("FileMan: "); + + if (!line) + break; + + /* Remove leading and trailing whitespace from the line. + Then, if there is anything left, add it to the history list + and execute it. */ + s = stripwhite (line); + + if (*s) + { + add_history (s); + execute_line (s); + } + + free (line); + } + exit (0); +} + +/* Execute a command line. */ +int +execute_line (line) + char *line; +{ + register int i; + COMMAND *command; + char *word; + + /* Isolate the command word. */ + i = 0; + while (line[i] && whitespace (line[i])) + i++; + word = line + i; + + while (line[i] && !whitespace (line[i])) + i++; + + if (line[i]) + line[i++] = '\0'; + + command = find_command (word); + + if (!command) + { + fprintf (stderr, "%s: No such command for FileMan.\n", word); + return (-1); + } + + /* Get argument to command, if any. */ + while (whitespace (line[i])) + i++; + + word = line + i; + + /* Call the function. */ + return ((*(command->func)) (word)); +} + +/* Look up NAME as the name of a command, and return a pointer to that + command. Return a NULL pointer if NAME isn't a command name. */ +COMMAND * +find_command (name) + char *name; +{ + register int i; + + for (i = 0; commands[i].name; i++) + if (strcmp (name, commands[i].name) == 0) + return (&commands[i]); + + return ((COMMAND *)NULL); +} + +/* Strip whitespace from the start and end of STRING. Return a pointer + into STRING. */ +char * +stripwhite (string) + char *string; +{ + register char *s, *t; + + for (s = string; whitespace (*s); s++) + ; + + if (*s == 0) + return (s); + + t = s + strlen (s) - 1; + while (t > s && whitespace (*t)) + t--; + *++t = '\0'; + + return s; +} + +/* **************************************************************** */ +/* */ +/* Interface to Readline Completion */ +/* */ +/* **************************************************************** */ + +char *command_generator (); +char **fileman_completion (); + +/* Tell the GNU Readline library how to complete. We want to try to complete + on command names if this is the first word in the line, or on filenames + if not. */ +initialize_readline () +{ + /* Allow conditional parsing of the ~/.inputrc file. */ + rl_readline_name = "FileMan"; + + /* Tell the completer that we want a crack first. */ + rl_attempted_completion_function = (CPPFunction *)fileman_completion; +} + +/* Attempt to complete on the contents of TEXT. START and END show the + region of TEXT that contains the word to complete. We can use the + entire line in case we want to do some simple parsing. Return the + array of matches, or NULL if there aren't any. */ +char ** +fileman_completion (text, start, end) + char *text; + int start, end; +{ + char **matches; + + matches = (char **)NULL; + + /* If this word is at the start of the line, then it is a command + to complete. Otherwise it is the name of a file in the current + directory. */ + if (start == 0) + matches = completion_matches (text, command_generator); + + return (matches); +} + +/* Generator function for command completion. STATE lets us know whether + to start from scratch; without any state (i.e. STATE == 0), then we + start at the top of the list. */ +char * +command_generator (text, state) + char *text; + int state; +{ + static int list_index, len; + char *name; + + /* If this is a new word to complete, initialize now. This includes + saving the length of TEXT for efficiency, and initializing the index + variable to 0. */ + if (!state) + { + list_index = 0; + len = strlen (text); + } + + /* Return the next name which partially matches from the command list. */ + while (name = commands[list_index].name) + { + list_index++; + + if (strncmp (name, text, len) == 0) + return (dupstr(name)); + } + + /* If no names matched, then return NULL. */ + return ((char *)NULL); +} + +/* **************************************************************** */ +/* */ +/* FileMan Commands */ +/* */ +/* **************************************************************** */ + +/* String to pass to system (). This is for the LIST, VIEW and RENAME + commands. */ +static char syscom[1024]; + +/* List the file(s) named in arg. */ +com_list (arg) + char *arg; +{ + if (!arg) + arg = ""; + + sprintf (syscom, "ls -FClg %s", arg); + return (system (syscom)); +} + +com_view (arg) + char *arg; +{ + if (!valid_argument ("view", arg)) + return 1; + + sprintf (syscom, "more %s", arg); + return (system (syscom)); +} + +com_rename (arg) + char *arg; +{ + too_dangerous ("rename"); + return (1); +} + +com_stat (arg) + char *arg; +{ + struct stat finfo; + + if (!valid_argument ("stat", arg)) + return (1); + + if (stat (arg, &finfo) == -1) + { + perror (arg); + return (1); + } + + printf ("Statistics for `%s':\n", arg); + + printf ("%s has %d link%s, and is %d byte%s in length.\n", arg, + finfo.st_nlink, + (finfo.st_nlink == 1) ? "" : "s", + finfo.st_size, + (finfo.st_size == 1) ? "" : "s"); + printf ("Inode Last Change at: %s", ctime (&finfo.st_ctime)); + printf (" Last access at: %s", ctime (&finfo.st_atime)); + printf (" Last modified at: %s", ctime (&finfo.st_mtime)); + return (0); +} + +com_delete (arg) + char *arg; +{ + too_dangerous ("delete"); + return (1); +} + +/* Print out help for ARG, or for all of the commands if ARG is + not present. */ +com_help (arg) + char *arg; +{ + register int i; + int printed = 0; + + for (i = 0; commands[i].name; i++) + { + if (!*arg || (strcmp (arg, commands[i].name) == 0)) + { + printf ("%s\t\t%s.\n", commands[i].name, commands[i].doc); + printed++; + } + } + + if (!printed) + { + printf ("No commands match `%s'. Possibilties are:\n", arg); + + for (i = 0; commands[i].name; i++) + { + /* Print in six columns. */ + if (printed == 6) + { + printed = 0; + printf ("\n"); + } + + printf ("%s\t", commands[i].name); + printed++; + } + + if (printed) + printf ("\n"); + } + return (0); +} + +/* Change to the directory ARG. */ +com_cd (arg) + char *arg; +{ + if (chdir (arg) == -1) + { + perror (arg); + return 1; + } + + com_pwd (""); + return (0); +} + +/* Print out the current working directory. */ +com_pwd (ignore) + char *ignore; +{ + char dir[1024], *s; + + s = getwd (dir); + if (s == 0) + { + printf ("Error getting pwd: %s\n", dir); + return 1; + } + + printf ("Current directory is %s\n", dir); + return 0; +} + +/* The user wishes to quit using this program. Just set DONE non-zero. */ +com_quit (arg) + char *arg; +{ + done = 1; + return (0); +} + +/* Function which tells you that you can't do this. */ +too_dangerous (caller) + char *caller; +{ + fprintf (stderr, + "%s: Too dangerous for me to distribute. Write it yourself.\n", + caller); +} + +/* Return non-zero if ARG is a valid argument for CALLER, else print + an error message and return zero. */ +int +valid_argument (caller, arg) + char *caller, *arg; +{ + if (!arg || !*arg) + { + fprintf (stderr, "%s: Argument required.\n", caller); + return (0); + } + + return (1); +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/examples/histexamp.c Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,82 @@ +main () +{ + char line[1024], *t; + int len, done = 0; + + line[0] = 0; + + using_history (); + while (!done) + { + printf ("history$ "); + fflush (stdout); + t = fgets (line, sizeof (line) - 1, stdin); + if (t && *t) + { + len = strlen (t); + if (t[len - 1] == '\n') + t[len - 1] = '\0'; + } + + if (!t) + strcpy (line, "quit"); + + if (line[0]) + { + char *expansion; + int result; + + using_history (); + + result = history_expand (line, &expansion); + if (result) + fprintf (stderr, "%s\n", expansion); + + if (result < 0 || result == 2) + { + free (expansion); + continue; + } + + add_history (expansion); + strncpy (line, expansion, sizeof (line) - 1); + free (expansion); + } + + if (strcmp (line, "quit") == 0) + done = 1; + else if (strcmp (line, "save") == 0) + write_history ("history_file"); + else if (strcmp (line, "read") == 0) + read_history ("history_file"); + else if (strcmp (line, "list") == 0) + { + register HIST_ENTRY **the_list; + register int i; + + the_list = history_list (); + if (the_list) + for (i = 0; the_list[i]; i++) + printf ("%d: %s\n", i + history_base, the_list[i]->line); + } + else if (strncmp (line, "delete", 6) == 0) + { + int which; + if ((sscanf (line + 6, "%d", &which)) == 1) + { + HIST_ENTRY *entry = remove_history (which); + if (!entry) + fprintf (stderr, "No such entry %d\n", which); + else + { + free (entry->line); + free (entry); + } + } + else + { + fprintf (stderr, "non-numeric arg given to `delete'\n"); + } + } + } +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/examples/manexamp.c Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,94 @@ +/* manexamp.c -- The examples which appear in the documentation are here. */ + +#include <stdio.h> +#include <readline/readline.h> + + +/* **************************************************************** */ +/* */ +* How to Emulate gets () */ +/* */ +/* **************************************************************** */ + +/* A static variable for holding the line. */ +static char *line_read = (char *)NULL; + +/* Read a string, and return a pointer to it. Returns NULL on EOF. */ +char * +rl_gets () +{ + /* If the buffer has already been allocated, return the memory + to the free pool. */ + if (line_read) + { + free (line_read); + line_read = (char *)NULL; + } + + /* Get a line from the user. */ + line_read = readline (""); + + /* If the line has any text in it, save it on the history. */ + if (line_read && *line_read) + add_history (line_read); + + return (line_read); +} + +/* **************************************************************** */ +/* */ +/* Writing a Function to be Called by Readline. */ +/* */ +/* **************************************************************** */ + +/* Invert the case of the COUNT following characters. */ +invert_case_line (count, key) + int count, key; +{ + register int start, end; + + start = rl_point; + + if (count < 0) + { + direction = -1; + count = -count; + } + else + direction = 1; + + /* Find the end of the range to modify. */ + end = start + (count * direction); + + /* Force it to be within range. */ + if (end > rl_end) + end = rl_end; + else if (end < 0) + end = -1; + + if (start > end) + { + int temp = start; + start = end; + end = temp; + } + + if (start == end) + return; + + /* Tell readline that we are modifying the line, so save the undo + information. */ + rl_modifying (start, end); + + for (; start != end; start += direction) + { + if (uppercase_p (rl_line_buffer[start])) + rl_line_buffer[start] = to_lower (rl_line_buffer[start]); + else if (lowercase_p (rl_line_buffer[start])) + rl_line_buffer[start] = to_upper (rl_line_buffer[start]); + } + + /* Move point to on top of the last character changed. */ + rl_point = end - direction; +} +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/funmap.c Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,299 @@ +/* funmap.c -- attach names to functions. */ + +/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc. + + This file is part of the GNU Readline Library, a library for + reading lines of text with interactive input and history editing. + + The GNU Readline Library is free software; you can redistribute it + and/or modify it under the terms of the GNU General Public License + as published by the Free Software Foundation; either version 1, or + (at your option) any later version. + + The GNU Readline Library is distributed in the hope that it will be + useful, but WITHOUT ANY WARRANTY; without even the implied warranty + of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + The GNU General Public License is often shipped with GNU software, and + is generally kept in a file called COPYING or LICENSE. If you do not + have a copy of the license, write to the Free Software Foundation, + 675 Mass Ave, Cambridge, MA 02139, USA. */ +#define READLINE_LIBRARY + +#if defined (STATIC_MALLOC) +static char *xmalloc (), *xrealloc (); +#else +extern char *xmalloc (), *xrealloc (); +#endif /* STATIC_MALLOC */ + +#if !defined (BUFSIZ) +#include <stdio.h> +#endif /* BUFSIZ */ + +#if defined (HAVE_STDLIB_H) +# include <stdlib.h> +#else +# include "ansi_stdlib.h" +#endif /* HAVE_STDLIB_H */ + +#include "rlconf.h" +#include "readline.h" + +static int qsort_string_compare (); + +FUNMAP **funmap = (FUNMAP **)NULL; +static int funmap_size = 0; +static int funmap_entry = 0; + +/* After initializing the function map, this is the index of the first + program specific function. */ +int funmap_program_specific_entry_start; + +static FUNMAP default_funmap[] = { + + { "abort", rl_abort }, + { "accept-line", rl_newline }, + { "arrow-key-prefix", rl_arrow_keys }, + { "backward-char", rl_backward }, + { "backward-delete-char", rl_rubout }, + { "backward-kill-line", rl_backward_kill_line }, + { "backward-kill-word", rl_backward_kill_word }, + { "backward-word", rl_backward_word }, + { "beginning-of-history", rl_beginning_of_history }, + { "beginning-of-line", rl_beg_of_line }, + { "call-last-kbd-macro", rl_call_last_kbd_macro }, + { "capitalize-word", rl_capitalize_word }, + { "clear-screen", rl_clear_screen }, + { "complete", rl_complete }, + { "delete-char", rl_delete }, + { "delete-horizontal-space", rl_delete_horizontal_space }, + { "digit-argument", rl_digit_argument }, + { "do-lowercase-version", rl_do_lowercase_version }, + { "downcase-word", rl_downcase_word }, + { "dump-functions", rl_dump_functions }, + { "emacs-editing-mode", rl_emacs_editing_mode }, + { "end-kbd-macro", rl_end_kbd_macro }, + { "end-of-history", rl_end_of_history }, + { "end-of-line", rl_end_of_line }, + { "forward-char", rl_forward }, + { "forward-search-history", rl_forward_search_history }, + { "forward-word", rl_forward_word }, + { "history-search-backward", rl_history_search_backward }, + { "history-search-forward", rl_history_search_forward }, + { "insert-completions", rl_insert_completions }, + { "kill-whole-line", rl_kill_full_line }, + { "kill-line", rl_kill_line }, + { "kill-word", rl_kill_word }, + { "next-history", rl_get_next_history }, + { "non-incremental-forward-search-history", rl_noninc_forward_search }, + { "non-incremental-reverse-search-history", rl_noninc_reverse_search }, + { "non-incremental-forward-search-history-again", rl_noninc_forward_search_again }, + { "non-incremental-reverse-search-history-again", rl_noninc_reverse_search_again }, + { "possible-completions", rl_possible_completions }, + { "previous-history", rl_get_previous_history }, + { "quoted-insert", rl_quoted_insert }, + { "re-read-init-file", rl_re_read_init_file }, + { "redraw-current-line", rl_refresh_line}, + { "reverse-search-history", rl_reverse_search_history }, + { "revert-line", rl_revert_line }, + { "self-insert", rl_insert }, + { "start-kbd-macro", rl_start_kbd_macro }, + { "tab-insert", rl_tab_insert }, + { "tilde-expand", rl_tilde_expand }, + { "transpose-chars", rl_transpose_chars }, + { "transpose-words", rl_transpose_words }, + { "tty-status", rl_tty_status }, + { "undo", rl_undo_command }, + { "universal-argument", rl_universal_argument }, + { "unix-line-discard", rl_unix_line_discard }, + { "unix-word-rubout", rl_unix_word_rubout }, + { "upcase-word", rl_upcase_word }, + { "yank", rl_yank }, + { "yank-last-arg", rl_yank_last_arg }, + { "yank-nth-arg", rl_yank_nth_arg }, + { "yank-pop", rl_yank_pop }, + +#if defined (VI_MODE) + { "vi-append-eol", rl_vi_append_eol }, + { "vi-append-mode", rl_vi_append_mode }, + { "vi-arg-digit", rl_vi_arg_digit }, + { "vi-bWord", rl_vi_bWord }, + { "vi-bracktype", rl_vi_bracktype }, + { "vi-bword", rl_vi_bword }, + { "vi-change-case", rl_vi_change_case }, + { "vi-change-char", rl_vi_change_char }, + { "vi-change-to", rl_vi_change_to }, + { "vi-char-search", rl_vi_char_search }, + { "vi-column", rl_vi_column }, + { "vi-comment", rl_vi_comment }, + { "vi-complete", rl_vi_complete }, + { "vi-delete", rl_vi_delete }, + { "vi-delete-to", rl_vi_delete_to }, + { "vi-eWord", rl_vi_eWord }, + { "vi-editing-mode", rl_vi_editing_mode }, + { "vi-end-word", rl_vi_end_word }, + { "vi-eof-maybe", rl_vi_eof_maybe }, + { "vi-eword", rl_vi_eword }, + { "vi-fWord", rl_vi_fWord }, + { "vi-first-print", rl_vi_first_print }, + { "vi-fword", rl_vi_fword }, + { "vi-insert-beg", rl_vi_insert_beg }, + { "vi-insertion-mode", rl_vi_insertion_mode }, + { "vi-match", rl_vi_match }, + { "vi-movement-mode", rl_vi_movement_mode }, + { "vi-next-word", rl_vi_next_word }, + { "vi-overstrike", rl_vi_overstrike }, + { "vi-overstrike-delete", rl_vi_overstrike_delete }, + { "vi-prev-word", rl_vi_prev_word }, + { "vi-put", rl_vi_put }, + { "vi-redo", rl_vi_redo }, + { "vi-replace", rl_vi_replace }, + { "vi-search", rl_vi_search }, + { "vi-search-again", rl_vi_search_again }, + { "vi-subst", rl_vi_subst }, + { "vi-tilde-expand", rl_vi_tilde_expand }, + { "vi-yank-arg", rl_vi_yank_arg }, + { "vi-yank-to", rl_vi_yank_to }, +#endif /* VI_MODE */ + + {(char *)NULL, (Function *)NULL } +}; + +rl_add_funmap_entry (name, function) + char *name; + Function *function; +{ + if (funmap_entry + 2 >= funmap_size) + if (!funmap) + funmap = (FUNMAP **)xmalloc ((funmap_size = 80) * sizeof (FUNMAP *)); + else + funmap = + (FUNMAP **)xrealloc (funmap, (funmap_size += 80) * sizeof (FUNMAP *)); + + funmap[funmap_entry] = (FUNMAP *)xmalloc (sizeof (FUNMAP)); + funmap[funmap_entry]->name = name; + funmap[funmap_entry]->function = function; + + funmap[++funmap_entry] = (FUNMAP *)NULL; + return funmap_entry; +} + +static int funmap_initialized = 0; + +/* Make the funmap contain all of the default entries. */ +void +rl_initialize_funmap () +{ + register int i; + + if (funmap_initialized) + return; + + for (i = 0; default_funmap[i].name; i++) + rl_add_funmap_entry (default_funmap[i].name, default_funmap[i].function); + + funmap_initialized = 1; + funmap_program_specific_entry_start = i; +} + +/* Produce a NULL terminated array of known function names. The array + is sorted. The array itself is allocated, but not the strings inside. + You should free () the array when you done, but not the pointrs. */ +char ** +rl_funmap_names () +{ + char **result = (char **)NULL; + int result_size, result_index; + + result_size = result_index = 0; + + /* Make sure that the function map has been initialized. */ + rl_initialize_funmap (); + + for (result_index = 0; funmap[result_index]; result_index++) + { + if (result_index + 2 > result_size) + { + if (!result) + result = (char **)xmalloc ((result_size = 20) * sizeof (char *)); + else + result = (char **) + xrealloc (result, (result_size += 20) * sizeof (char *)); + } + + result[result_index] = funmap[result_index]->name; + result[result_index + 1] = (char *)NULL; + } + + qsort (result, result_index, sizeof (char *), qsort_string_compare); + return (result); +} + +/* Stupid comparison routine for qsort () ing strings. */ +static int +qsort_string_compare (s1, s2) + register char **s1, **s2; +{ + int r; + + r = **s1 - **s2; + if (r == 0) + r = strcmp (*s1, *s2); + return r; +} + +/* Things that mean `Control'. */ +char *possible_control_prefixes[] = { + "Control-", "C-", "CTRL-", (char *)NULL +}; + +char *possible_meta_prefixes[] = { + "Meta", "M-", (char *)NULL +}; + +#if defined (STATIC_MALLOC) + +/* **************************************************************** */ +/* */ +/* xmalloc and xrealloc () */ +/* */ +/* **************************************************************** */ + +static void memory_error_and_abort (); + +static char * +xmalloc (bytes) + int bytes; +{ + char *temp = (char *)malloc (bytes); + + if (!temp) + memory_error_and_abort (); + return (temp); +} + +static char * +xrealloc (pointer, bytes) + char *pointer; + int bytes; +{ + char *temp; + + if (!pointer) + temp = (char *)malloc (bytes); + else + temp = (char *)realloc (pointer, bytes); + + if (!temp) + memory_error_and_abort (); + return (temp); +} + +static void +memory_error_and_abort () +{ + fprintf (stderr, "history: Out of virtual memory!\n"); + abort (); +} +#endif /* STATIC_MALLOC */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/history.c Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,2216 @@ +/* History.c -- standalone history library */ + +/* Copyright (C) 1989, 1992 Free Software Foundation, Inc. + + This file contains the GNU History Library (the Library), a set of + routines for managing the text of previously typed lines. + + The Library is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 1, or (at your option) + any later version. + + The Library is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + The GNU General Public License is often shipped with GNU software, and + is generally kept in a file called COPYING or LICENSE. If you do not + have a copy of the license, write to the Free Software Foundation, + 675 Mass Ave, Cambridge, MA 02139, USA. */ + +/* The goal is to make the implementation transparent, so that you + don't have to know what data types are used, just what functions + you can call. I think I have done that. */ +#define READLINE_LIBRARY + +#include <stdio.h> +#include <sys/types.h> +#include <sys/file.h> +#include <sys/stat.h> +#include <fcntl.h> +#if defined (HAVE_STDLIB_H) +# include <stdlib.h> +#else +# include "ansi_stdlib.h" +#endif /* HAVE_STDLIB_H */ +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif +#if defined (HAVE_STRING_H) +# include <string.h> +#else +# include <strings.h> +#endif /* !HAVE_STRING_H */ +#include <errno.h> + +/* Not all systems declare ERRNO in errno.h... and some systems #define it! */ +#if !defined (errno) +extern int errno; +#endif /* !errno */ + +#include "memalloc.h" +#include "history.h" + +#if defined (STATIC_MALLOC) +static char *xmalloc (), *xrealloc (); +#else +extern char *xmalloc (), *xrealloc (); +#endif /* STATIC_MALLOC */ + +#define STREQ(a, b) (((a)[0] == (b)[0]) && (strcmp ((a), (b)) == 0)) +#define STREQN(a, b, n) (((a)[0] == (b)[0]) && (strncmp ((a), (b), (n)) == 0)) + +#ifndef savestring +# ifndef strcpy +extern char *strcpy (); +# endif +#define savestring(x) strcpy (xmalloc (1 + strlen (x)), (x)) +#endif + +#ifndef whitespace +#define whitespace(c) (((c) == ' ') || ((c) == '\t')) +#endif + +#ifndef digit_p +#define digit_p(c) ((c) >= '0' && (c) <= '9') +#endif + +#ifndef digit_value +#define digit_value(c) ((c) - '0') +#endif + +#ifndef member +# ifndef strchr +extern char *strchr (); +# endif +#define member(c, s) ((c) ? ((char *)strchr ((s), (c)) != (char *)NULL) : 0) +#endif + +/* Possible history errors passed to hist_error. */ +#define EVENT_NOT_FOUND 0 +#define BAD_WORD_SPEC 1 +#define SUBST_FAILED 2 +#define BAD_MODIFIER 3 + +static char error_pointer; + +static char *subst_lhs; +static char *subst_rhs; +static int subst_lhs_len = 0; +static int subst_rhs_len = 0; + +static char *get_history_word_specifier (); +static char *history_find_word (); + +#if defined (SHELL) +extern char *single_quote (); +#endif + +/* **************************************************************** */ +/* */ +/* History Functions */ +/* */ +/* **************************************************************** */ + +/* An array of HIST_ENTRY. This is where we store the history. */ +static HIST_ENTRY **the_history = (HIST_ENTRY **)NULL; + +/* Non-zero means that we have enforced a limit on the amount of + history that we save. */ +static int history_stifled = 0; + +/* If HISTORY_STIFLED is non-zero, then this is the maximum number of + entries to remember. */ +int max_input_history; + +/* The current location of the interactive history pointer. Just makes + life easier for outside callers. */ +static int history_offset = 0; + +/* The number of strings currently stored in the input_history list. */ +int history_length = 0; + +/* The current number of slots allocated to the input_history. */ +static int history_size = 0; + +/* The number of slots to increase the_history by. */ +#define DEFAULT_HISTORY_GROW_SIZE 50 + +/* The character that represents the start of a history expansion + request. This is usually `!'. */ +char history_expansion_char = '!'; + +/* The character that invokes word substitution if found at the start of + a line. This is usually `^'. */ +char history_subst_char = '^'; + +/* During tokenization, if this character is seen as the first character + of a word, then it, and all subsequent characters upto a newline are + ignored. For a Bourne shell, this should be '#'. Bash special cases + the interactive comment character to not be a comment delimiter. */ +char history_comment_char = '\0'; + +/* The list of characters which inhibit the expansion of text if found + immediately following history_expansion_char. */ +char *history_no_expand_chars = " \t\n\r="; + +/* The logical `base' of the history array. It defaults to 1. */ +int history_base = 1; + +/* Return the current HISTORY_STATE of the history. */ +HISTORY_STATE * +history_get_history_state () +{ + HISTORY_STATE *state; + + state = (HISTORY_STATE *)xmalloc (sizeof (HISTORY_STATE)); + state->entries = the_history; + state->offset = history_offset; + state->length = history_length; + state->size = history_size; + state->flags = 0; + if (history_stifled) + state->flags |= HS_STIFLED; + + return (state); +} + +/* Set the state of the current history array to STATE. */ +void +history_set_history_state (state) + HISTORY_STATE *state; +{ + the_history = state->entries; + history_offset = state->offset; + history_length = state->length; + history_size = state->size; + if (state->flags & HS_STIFLED) + history_stifled = 1; +} + +/* Begin a session in which the history functions might be used. This + initializes interactive variables. */ +void +using_history () +{ + history_offset = history_length; +} + +/* Return the number of bytes that the primary history entries are using. + This just adds up the lengths of the_history->lines. */ +int +history_total_bytes () +{ + register int i, result; + + result = 0; + + for (i = 0; the_history && the_history[i]; i++) + result += strlen (the_history[i]->line); + + return (result); +} + +/* Place STRING at the end of the history list. The data field + is set to NULL. */ +void +add_history (string) + char *string; +{ + HIST_ENTRY *temp; + + if (history_stifled && (history_length == max_input_history)) + { + register int i; + + /* If the history is stifled, and history_length is zero, + and it equals max_input_history, we don't save items. */ + if (history_length == 0) + return; + + /* If there is something in the slot, then remove it. */ + if (the_history[0]) + { + free (the_history[0]->line); + free (the_history[0]); + } + + /* Copy the rest of the entries, moving down one slot. */ + for (i = 0; i < history_length; i++) + the_history[i] = the_history[i + 1]; + + history_base++; + + } + else + { + if (!history_size) + { + history_size = DEFAULT_HISTORY_GROW_SIZE; + the_history = (HIST_ENTRY **)xmalloc (history_size * sizeof (HIST_ENTRY *)); + history_length = 1; + + } + else + { + if (history_length == (history_size - 1)) + { + history_size += DEFAULT_HISTORY_GROW_SIZE; + the_history = (HIST_ENTRY **) + xrealloc (the_history, history_size * sizeof (HIST_ENTRY *)); + } + history_length++; + } + } + + temp = (HIST_ENTRY *)xmalloc (sizeof (HIST_ENTRY)); + temp->line = savestring (string); + temp->data = (char *)NULL; + + the_history[history_length] = (HIST_ENTRY *)NULL; + the_history[history_length - 1] = temp; +} + +/* Make the history entry at WHICH have LINE and DATA. This returns + the old entry so you can dispose of the data. In the case of an + invalid WHICH, a NULL pointer is returned. */ +HIST_ENTRY * +replace_history_entry (which, line, data) + int which; + char *line; + char *data; +{ + HIST_ENTRY *temp = (HIST_ENTRY *)xmalloc (sizeof (HIST_ENTRY)); + HIST_ENTRY *old_value; + + if (which >= history_length) + return ((HIST_ENTRY *)NULL); + + old_value = the_history[which]; + + temp->line = savestring (line); + temp->data = data; + the_history[which] = temp; + + return (old_value); +} + +/* Returns the magic number which says what history element we are + looking at now. In this implementation, it returns history_offset. */ +int +where_history () +{ + return (history_offset); +} + +/* Search the history for STRING, starting at history_offset. + If DIRECTION < 0, then the search is through previous entries, else + through subsequent. If ANCHORED is non-zero, the string must + appear at the beginning of a history line, otherwise, the string + may appear anywhere in the line. If the string is found, then + current_history () is the history entry, and the value of this + function is the offset in the line of that history entry that the + string was found in. Otherwise, nothing is changed, and a -1 is + returned. */ + +#define ANCHORED_SEARCH 1 +#define NON_ANCHORED_SEARCH 0 + +static int +history_search_internal (string, direction, anchored) + char *string; + int direction, anchored; +{ + register int i, reverse; + register char *line; + register int line_index; + int string_len; + + i = history_offset; + reverse = (direction < 0); + + /* Take care of trivial cases first. */ + + if (!history_length || ((i == history_length) && !reverse)) + return (-1); + + if (reverse && (i == history_length)) + i--; + +#define NEXT_LINE() do { if (reverse) i--; else i++; } while (0) + + string_len = strlen (string); + while (1) + { + /* Search each line in the history list for STRING. */ + + /* At limit for direction? */ + if ((reverse && i < 0) || (!reverse && i == history_length)) + return (-1); + + line = the_history[i]->line; + line_index = strlen (line); + + /* If STRING is longer than line, no match. */ + if (string_len > line_index) + { + NEXT_LINE (); + continue; + } + + /* Handle anchored searches first. */ + if (anchored == ANCHORED_SEARCH) + { + if (STREQN (string, line, string_len)) + { + history_offset = i; + return (0); + } + + NEXT_LINE (); + continue; + } + + /* Do substring search. */ + if (reverse) + { + line_index -= string_len; + + while (line_index >= 0) + { + if (STREQN (string, line + line_index, string_len)) + { + history_offset = i; + return (line_index); + } + line_index--; + } + } + else + { + register int limit = line_index - string_len + 1; + line_index = 0; + + while (line_index < limit) + { + if (STREQN (string, line + line_index, string_len)) + { + history_offset = i; + return (line_index); + } + line_index++; + } + } + NEXT_LINE (); + } +} + +/* Do a non-anchored search for STRING through the history in DIRECTION. */ +int +history_search (string, direction) + char *string; + int direction; +{ + return (history_search_internal (string, direction, NON_ANCHORED_SEARCH)); +} + +/* Do an anchored search for string through the history in DIRECTION. */ +int +history_search_prefix (string, direction) + char *string; + int direction; +{ + return (history_search_internal (string, direction, ANCHORED_SEARCH)); +} + +/* Remove history element WHICH from the history. The removed + element is returned to you so you can free the line, data, + and containing structure. */ +HIST_ENTRY * +remove_history (which) + int which; +{ + HIST_ENTRY *return_value; + + if (which >= history_length || !history_length) + return_value = (HIST_ENTRY *)NULL; + else + { + register int i; + return_value = the_history[which]; + + for (i = which; i < history_length; i++) + the_history[i] = the_history[i + 1]; + + history_length--; + } + + return (return_value); +} + +/* Stifle the history list, remembering only MAX number of lines. */ +void +stifle_history (max) + int max; +{ + if (max < 0) + max = 0; + + if (history_length > max) + { + register int i, j; + + /* This loses because we cannot free the data. */ + for (i = 0; i < (history_length - max); i++) + { + free (the_history[i]->line); + free (the_history[i]); + } + + history_base = i; + for (j = 0, i = history_length - max; j < max; i++, j++) + the_history[j] = the_history[i]; + the_history[j] = (HIST_ENTRY *)NULL; + history_length = j; + } + + history_stifled = 1; + max_input_history = max; +} + +/* Stop stifling the history. This returns the previous amount the history + was stifled by. The value is positive if the history was stifled, negative + if it wasn't. */ +int +unstifle_history () +{ + int result = max_input_history; + + if (history_stifled) + { + result = -result; + history_stifled = 0; + } + + return (result); +} + +int +history_is_stifled () +{ + return (history_stifled); +} + +/* Return the string that should be used in the place of this + filename. This only matters when you don't specify the + filename to read_history (), or write_history (). */ +static char * +history_filename (filename) + char *filename; +{ + char *return_val = filename ? savestring (filename) : (char *)NULL; + + if (!return_val) + { + char *home; + int home_len; + + home = getenv ("HOME"); + + if (!home) + home = "."; + + home_len = strlen (home); + /* strlen(".history") == 8 */ + return_val = xmalloc (2 + home_len + 8); + + strcpy (return_val, home); + return_val[home_len] = '/'; + strcpy (return_val + home_len + 1, ".history"); + } + + return (return_val); +} + +/* Add the contents of FILENAME to the history list, a line at a time. + If FILENAME is NULL, then read from ~/.history. Returns 0 if + successful, or errno if not. */ +int +read_history (filename) + char *filename; +{ + return (read_history_range (filename, 0, -1)); +} + +/* Read a range of lines from FILENAME, adding them to the history list. + Start reading at the FROM'th line and end at the TO'th. If FROM + is zero, start at the beginning. If TO is less than FROM, read + until the end of the file. If FILENAME is NULL, then read from + ~/.history. Returns 0 if successful, or errno if not. */ +int +read_history_range (filename, from, to) + char *filename; + int from, to; +{ + register int line_start, line_end; + char *input, *buffer = (char *)NULL; + int file, current_line; + struct stat finfo; + + input = history_filename (filename); + file = open (input, O_RDONLY, 0666); + + if ((file < 0) || (fstat (file, &finfo) == -1)) + goto error_and_exit; + + buffer = xmalloc ((int)finfo.st_size + 1); + + if (read (file, buffer, finfo.st_size) != finfo.st_size) + { + error_and_exit: + if (file >= 0) + close (file); + + if (input) + free (input); + + if (buffer) + free (buffer); + + return (errno); + } + + close (file); + + /* Set TO to larger than end of file if negative. */ + if (to < 0) + to = finfo.st_size; + + /* Start at beginning of file, work to end. */ + line_start = line_end = current_line = 0; + + /* Skip lines until we are at FROM. */ + while (line_start < finfo.st_size && current_line < from) + { + for (line_end = line_start; line_end < finfo.st_size; line_end++) + if (buffer[line_end] == '\n') + { + current_line++; + line_start = line_end + 1; + if (current_line == from) + break; + } + } + + /* If there are lines left to gobble, then gobble them now. */ + for (line_end = line_start; line_end < finfo.st_size; line_end++) + if (buffer[line_end] == '\n') + { + buffer[line_end] = '\0'; + + if (buffer[line_start]) + add_history (buffer + line_start); + + current_line++; + + if (current_line >= to) + break; + + line_start = line_end + 1; + } + + if (input) + free (input); + + if (buffer) + free (buffer); + + return (0); +} + +/* Truncate the history file FNAME, leaving only LINES trailing lines. + If FNAME is NULL, then use ~/.history. */ +int +history_truncate_file (fname, lines) + char *fname; + register int lines; +{ + register int i; + int file, chars_read; + char *buffer = (char *)NULL, *filename; + struct stat finfo; + + filename = history_filename (fname); + file = open (filename, O_RDONLY, 0666); + + if (file == -1 || fstat (file, &finfo) == -1) + goto truncate_exit; + + buffer = xmalloc ((int)finfo.st_size + 1); + chars_read = read (file, buffer, finfo.st_size); + close (file); + + if (chars_read <= 0) + goto truncate_exit; + + /* Count backwards from the end of buffer until we have passed + LINES lines. */ + for (i = chars_read - 1; lines && i; i--) + { + if (buffer[i] == '\n') + lines--; + } + + /* If this is the first line, then the file contains exactly the + number of lines we want to truncate to, so we don't need to do + anything. It's the first line if we don't find a newline between + the current value of i and 0. Otherwise, write from the start of + this line until the end of the buffer. */ + for ( ; i; i--) + if (buffer[i] == '\n') + { + i++; + break; + } + + /* Write only if there are more lines in the file than we want to + truncate to. */ + if (i && ((file = open (filename, O_WRONLY|O_TRUNC, 0666)) != -1)) + { + write (file, buffer + i, finfo.st_size - i); + close (file); + } + + truncate_exit: + if (buffer) + free (buffer); + + free (filename); + return 0; +} + +#define HISTORY_APPEND 0 +#define HISTORY_OVERWRITE 1 + +/* Workhorse function for writing history. Writes NELEMENT entries + from the history list to FILENAME. OVERWRITE is non-zero if you + wish to replace FILENAME with the entries. */ +static int +history_do_write (filename, nelements, overwrite) + char *filename; + int nelements, overwrite; +{ + register int i; + char *output = history_filename (filename); + int file, mode; + + mode = overwrite ? O_WRONLY | O_CREAT | O_TRUNC : O_WRONLY | O_APPEND; + + if ((file = open (output, mode, 0666)) == -1) + { + if (output) + free (output); + + return (errno); + } + + if (nelements > history_length) + nelements = history_length; + + /* Build a buffer of all the lines to write, and write them in one syscall. + Suggested by Peter Ho (peter@robosts.oxford.ac.uk). */ + { + register int j = 0; + int buffer_size = 0; + char *buffer; + + /* Calculate the total number of bytes to write. */ + for (i = history_length - nelements; i < history_length; i++) + buffer_size += 1 + strlen (the_history[i]->line); + + /* Allocate the buffer, and fill it. */ + buffer = xmalloc (buffer_size); + + for (i = history_length - nelements; i < history_length; i++) + { + strcpy (buffer + j, the_history[i]->line); + j += strlen (the_history[i]->line); + buffer[j++] = '\n'; + } + + write (file, buffer, buffer_size); + free (buffer); + } + + close (file); + + if (output) + free (output); + + return (0); +} + +/* Append NELEMENT entries to FILENAME. The entries appended are from + the end of the list minus NELEMENTs up to the end of the list. */ +int +append_history (nelements, filename) + int nelements; + char *filename; +{ + return (history_do_write (filename, nelements, HISTORY_APPEND)); +} + +/* Overwrite FILENAME with the current history. If FILENAME is NULL, + then write the history list to ~/.history. Values returned + are as in read_history ().*/ +int +write_history (filename) + char *filename; +{ + return (history_do_write (filename, history_length, HISTORY_OVERWRITE)); +} + +/* Return the history entry at the current position, as determined by + history_offset. If there is no entry there, return a NULL pointer. */ +HIST_ENTRY * +current_history () +{ + if ((history_offset == history_length) || !the_history) + return ((HIST_ENTRY *)NULL); + else + return (the_history[history_offset]); +} + +/* Back up history_offset to the previous history entry, and return + a pointer to that entry. If there is no previous entry then return + a NULL pointer. */ +HIST_ENTRY * +previous_history () +{ + if (!history_offset) + return ((HIST_ENTRY *)NULL); + else + return (the_history[--history_offset]); +} + +/* Move history_offset forward to the next history entry, and return + a pointer to that entry. If there is no next entry then return a + NULL pointer. */ +HIST_ENTRY * +next_history () +{ + if (history_offset == history_length) + return ((HIST_ENTRY *)NULL); + else + return (the_history[++history_offset]); +} + +/* Return the current history array. The caller has to be carefull, since this + is the actual array of data, and could be bashed or made corrupt easily. + The array is terminated with a NULL pointer. */ +HIST_ENTRY ** +history_list () +{ + return (the_history); +} + +/* Return the history entry which is logically at OFFSET in the history array. + OFFSET is relative to history_base. */ +HIST_ENTRY * +history_get (offset) + int offset; +{ + int local_index = offset - history_base; + + if (local_index >= history_length || + local_index < 0 || + !the_history) + return ((HIST_ENTRY *)NULL); + return (the_history[local_index]); +} + +/* Search for STRING in the history list. DIR is < 0 for searching + backwards. POS is an absolute index into the history list at + which point to begin searching. */ +int +history_search_pos (string, dir, pos) + char *string; + int dir, pos; +{ + int ret, old = where_history (); + history_set_pos (pos); + if (history_search (string, dir) == -1) + { + history_set_pos (old); + return (-1); + } + ret = where_history (); + history_set_pos (old); + return ret; +} + +/* Make the current history item be the one at POS, an absolute index. + Returns zero if POS is out of range, else non-zero. */ +int +history_set_pos (pos) + int pos; +{ + if (pos > history_length || pos < 0 || !the_history) + return (0); + history_offset = pos; + return (1); +} + + +/* **************************************************************** */ +/* */ +/* History Expansion */ +/* */ +/* **************************************************************** */ + +/* Hairy history expansion on text, not tokens. This is of general + use, and thus belongs in this library. */ + +/* The last string searched for in a !?string? search. */ +static char *search_string = (char *)NULL; + +/* The last string matched by a !?string? search. */ +static char *search_match = (char *)NULL; + +/* Return the event specified at TEXT + OFFSET modifying OFFSET to + point to after the event specifier. Just a pointer to the history + line is returned; NULL is returned in the event of a bad specifier. + You pass STRING with *INDEX equal to the history_expansion_char that + begins this specification. + DELIMITING_QUOTE is a character that is allowed to end the string + specification for what to search for in addition to the normal + characters `:', ` ', `\t', `\n', and sometimes `?'. + So you might call this function like: + line = get_history_event ("!echo:p", &index, 0); */ +char * +get_history_event (string, caller_index, delimiting_quote) + char *string; + int *caller_index; + int delimiting_quote; +{ + register int i = *caller_index; + register char c; + HIST_ENTRY *entry; + int which, sign = 1; + int local_index, search_mode, substring_okay = 0; + char *temp; + + /* The event can be specified in a number of ways. + + !! the previous command + !n command line N + !-n current command-line minus N + !str the most recent command starting with STR + !?str[?] + the most recent command containing STR + + All values N are determined via HISTORY_BASE. */ + + if (string[i] != history_expansion_char) + return ((char *)NULL); + + /* Move on to the specification. */ + i++; + +#define RETURN_ENTRY(e, w) \ + return ((e = history_get (w)) ? e->line : (char *)NULL) + + /* Handle !! case. */ + if (string[i] == history_expansion_char) + { + i++; + which = history_base + (history_length - 1); + *caller_index = i; + RETURN_ENTRY (entry, which); + } + + /* Hack case of numeric line specification. */ + if (string[i] == '-') + { + sign = -1; + i++; + } + + if (digit_p (string[i])) + { + /* Get the extent of the digits and compute the value. */ + for (which = 0; digit_p (string[i]); i++) + which = (which * 10) + digit_value (string[i]); + + *caller_index = i; + + if (sign < 0) + which = (history_length + history_base) - which; + + RETURN_ENTRY (entry, which); + } + + /* This must be something to search for. If the spec begins with + a '?', then the string may be anywhere on the line. Otherwise, + the string must be found at the start of a line. */ + if (string[i] == '?') + { + substring_okay++; + i++; + } + + /* Only a closing `?' or a newline delimit a substring search string. */ + for (local_index = i; c = string[i]; i++) + if ((!substring_okay && (whitespace (c) || c == ':' || +#if defined (SHELL) + member (c, ";&()|<>") || +#endif /* SHELL */ + string[i] == delimiting_quote)) || + string[i] == '\n' || + (substring_okay && string[i] == '?')) + break; + + temp = xmalloc (1 + (i - local_index)); + strncpy (temp, &string[local_index], (i - local_index)); + temp[i - local_index] = '\0'; + + if (substring_okay && string[i] == '?') + i++; + + *caller_index = i; + +#define FAIL_SEARCH() \ + do { history_offset = history_length; free (temp) ; return (char *)NULL; } while (0) + + search_mode = substring_okay ? NON_ANCHORED_SEARCH : ANCHORED_SEARCH; + while (1) + { + local_index = history_search_internal (temp, -1, search_mode); + + if (local_index < 0) + FAIL_SEARCH (); + + if (local_index == 0 || substring_okay) + { + entry = current_history (); + history_offset = history_length; + + /* If this was a substring search, then remember the + string that we matched for word substitution. */ + if (substring_okay) + { + if (search_string) + free (search_string); + search_string = temp; + + if (search_match) + free (search_match); + search_match = history_find_word (entry->line, local_index); + } + else + free (temp); + return (entry->line); + } + + if (history_offset) + history_offset--; + else + FAIL_SEARCH (); + } +#undef FAIL_SEARCH +#undef RETURN_ENTRY +} +#if defined (SHELL) +/* Function for extracting single-quoted strings. Used for inhibiting + history expansion within single quotes. */ + +/* Extract the contents of STRING as if it is enclosed in single quotes. + SINDEX, when passed in, is the offset of the character immediately + following the opening single quote; on exit, SINDEX is left pointing + to the closing single quote. */ +static void +rl_string_extract_single_quoted (string, sindex) + char *string; + int *sindex; +{ + register int i = *sindex; + + while (string[i] && string[i] != '\'') + i++; + + *sindex = i; +} + +static char * +quote_breaks (s) + char *s; +{ + register char *p, *r; + char *ret; + int len = 3; + + for (p = s; p && *p; p++, len++) + { + if (*p == '\'') + len += 3; + else if (whitespace (*p) || *p == '\n') + len += 2; + } + + r = ret = xmalloc (len); + *r++ = '\''; + for (p = s; p && *p; ) + { + if (*p == '\'') + { + *r++ = '\''; + *r++ = '\\'; + *r++ = '\''; + *r++ = '\''; + p++; + } + else if (whitespace (*p) || *p == '\n') + { + *r++ = '\''; + *r++ = *p++; + *r++ = '\''; + } + else + *r++ = *p++; + } + *r++ = '\''; + *r = '\0'; + return ret; +} +#endif /* SHELL */ + +static char * +hist_error(s, start, current, errtype) + char *s; + int start, current, errtype; +{ + char *temp, *emsg; + int ll, elen; + + ll = current - start; + + switch (errtype) + { + case EVENT_NOT_FOUND: + emsg = "event not found"; + elen = 15; + break; + case BAD_WORD_SPEC: + emsg = "bad word specifier"; + elen = 18; + break; + case SUBST_FAILED: + emsg = "substitution failed"; + elen = 19; + break; + case BAD_MODIFIER: + emsg = "unrecognized history modifier"; + elen = 29; + break; + default: + emsg = "unknown expansion error"; + elen = 23; + break; + } + + temp = xmalloc (ll + elen + 3); + strncpy (temp, s + start, ll); + temp[ll] = ':'; + temp[ll + 1] = ' '; + strcpy (temp + ll + 2, emsg); + return (temp); +} + +/* Get a history substitution string from STR starting at *IPTR + and return it. The length is returned in LENPTR. + + A backslash can quote the delimiter. If the string is the + empty string, the previous pattern is used. If there is + no previous pattern for the lhs, the last history search + string is used. + + If IS_RHS is 1, we ignore empty strings and set the pattern + to "" anyway. subst_lhs is not changed if the lhs is empty; + subst_rhs is allowed to be set to the empty string. */ + +static char * +get_subst_pattern (str, iptr, delimiter, is_rhs, lenptr) + char *str; + int *iptr, delimiter, is_rhs, *lenptr; +{ + register int si, i, j, k; + char *s = (char *) NULL; + + i = *iptr; + + for (si = i; str[si] && str[si] != delimiter; si++) + if (str[si] == '\\' && str[si + 1] == delimiter) + si++; + + if (si > i || is_rhs) + { + s = xmalloc (si - i + 1); + for (j = 0, k = i; k < si; j++, k++) + { + /* Remove a backslash quoting the search string delimiter. */ + if (str[k] == '\\' && str[k + 1] == delimiter) + k++; + s[j] = str[k]; + } + s[j] = '\0'; + if (lenptr) + *lenptr = j; + } + + i = si; + if (str[i]) + i++; + *iptr = i; + + return s; +} + +static void +postproc_subst_rhs () +{ + char *new; + int i, j, new_size; + + new = xmalloc (new_size = subst_rhs_len + subst_lhs_len); + for (i = j = 0; i < subst_rhs_len; i++) + { + if (subst_rhs[i] == '&') + { + if (j + subst_lhs_len >= new_size) + new = xrealloc (new, (new_size = new_size * 2 + subst_lhs_len)); + strcpy (new + j, subst_lhs); + j += subst_lhs_len; + } + else + { + /* a single backslash protects the `&' from lhs interpolation */ + if (subst_rhs[i] == '\\' && subst_rhs[i + 1] == '&') + i++; + if (j >= new_size) + new = xrealloc (new, new_size *= 2); + new[j++] = subst_rhs[i]; + } + } + new[j] = '\0'; + free (subst_rhs); + subst_rhs = new; + subst_rhs_len = j; +} + +/* Expand the bulk of a history specifier starting at STRING[START]. + Returns 0 if everything is OK, -1 if an error occurred, and 1 + if the `p' modifier was supplied and the caller should just print + the returned string. Returns the new index into string in + *END_INDEX_PTR, and the expanded specifier in *RET_STRING. */ +static int +history_expand_internal (string, start, end_index_ptr, ret_string, current_line) + char *string; + int start, *end_index_ptr; + char **ret_string; + char *current_line; /* for !# */ +{ + int i, n, starting_index; + int substitute_globally, want_quotes, print_only; + char *event, *temp, *result, *tstr, *t, c, *word_spec; + int result_len; + + result = xmalloc (result_len = 128); + + i = start; + + /* If it is followed by something that starts a word specifier, + then !! is implied as the event specifier. */ + + if (member (string[i + 1], ":$*%^")) + { + char fake_s[3]; + int fake_i = 0; + i++; + fake_s[0] = fake_s[1] = history_expansion_char; + fake_s[2] = '\0'; + event = get_history_event (fake_s, &fake_i, 0); + } + else if (string[i + 1] == '#') + { + i += 2; + event = current_line; + } + else + { + int quoted_search_delimiter = 0; + + /* If the character before this `!' is a double or single + quote, then this expansion takes place inside of the + quoted string. If we have to search for some text ("!foo"), + allow the delimiter to end the search string. */ + if (i && (string[i - 1] == '\'' || string[i - 1] == '"')) + quoted_search_delimiter = string[i - 1]; + event = get_history_event (string, &i, quoted_search_delimiter); + } + + if (!event) + { + *ret_string = hist_error (string, start, i, EVENT_NOT_FOUND); + free (result); + return (-1); + } + + /* If a word specifier is found, then do what that requires. */ + starting_index = i; + word_spec = get_history_word_specifier (string, event, &i); + + /* There is no such thing as a `malformed word specifier'. However, + it is possible for a specifier that has no match. In that case, + we complain. */ + if (word_spec == (char *)&error_pointer) + { + *ret_string = hist_error (string, starting_index, i, BAD_WORD_SPEC); + free (result); + return (-1); + } + + /* If no word specifier, than the thing of interest was the event. */ + if (!word_spec) + temp = savestring (event); + else + { + temp = savestring (word_spec); + free (word_spec); + } + + /* Perhaps there are other modifiers involved. Do what they say. */ + want_quotes = substitute_globally = print_only = 0; + starting_index = i; + + while (string[i] == ':') + { + c = string[i + 1]; + + if (c == 'g') + { + substitute_globally = 1; + i++; + c = string[i + 1]; + } + + switch (c) + { + default: + *ret_string = hist_error (string, i+1, i+2, BAD_MODIFIER); + free (result); + free (temp); + return -1; + +#if defined (SHELL) + case 'q': + want_quotes = 'q'; + break; + + case 'x': + want_quotes = 'x'; + break; +#endif /* SHELL */ + + /* :p means make this the last executed line. So we + return an error state after adding this line to the + history. */ + case 'p': + print_only++; + break; + + /* :t discards all but the last part of the pathname. */ + case 't': + tstr = strrchr (temp, '/'); + if (tstr) + { + tstr++; + t = savestring (tstr); + free (temp); + temp = t; + } + break; + + /* :h discards the last part of a pathname. */ + case 'h': + tstr = strrchr (temp, '/'); + if (tstr) + *tstr = '\0'; + break; + + /* :r discards the suffix. */ + case 'r': + tstr = strrchr (temp, '.'); + if (tstr) + *tstr = '\0'; + break; + + /* :e discards everything but the suffix. */ + case 'e': + tstr = strrchr (temp, '.'); + if (tstr) + { + t = savestring (tstr); + free (temp); + temp = t; + } + break; + + /* :s/this/that substitutes `that' for the first + occurrence of `this'. :gs/this/that substitutes `that' + for each occurrence of `this'. :& repeats the last + substitution. :g& repeats the last substitution + globally. */ + + case '&': + case 's': + { + char *new_event, *t; + int delimiter, failed, si, l_temp; + + if (c == 's') + { + if (i + 2 < (int)strlen (string)) + delimiter = string[i + 2]; + else + break; /* no search delimiter */ + + i += 3; + + t = get_subst_pattern (string, &i, delimiter, 0, &subst_lhs_len); + /* An empty substitution lhs with no previous substitution + uses the last search string as the lhs. */ + if (t) + { + if (subst_lhs) + free (subst_lhs); + subst_lhs = t; + } + else if (!subst_lhs) + { + if (search_string && *search_string) + { + subst_lhs = savestring (search_string); + subst_lhs_len = strlen (subst_lhs); + } + else + { + subst_lhs = (char *) NULL; + subst_lhs_len = 0; + } + } + + /* If there is no lhs, the substitution can't succeed. */ + if (subst_lhs_len == 0) + { + *ret_string = hist_error (string, starting_index, i, SUBST_FAILED); + free (result); + free (temp); + return -1; + } + + if (subst_rhs) + free (subst_rhs); + subst_rhs = get_subst_pattern (string, &i, delimiter, 1, &subst_rhs_len); + + /* If `&' appears in the rhs, it's supposed to be replaced + with the lhs. */ + if (member ('&', subst_rhs)) + postproc_subst_rhs (); + } + else + i += 2; + + l_temp = strlen (temp); + /* Ignore impossible cases. */ + if (subst_lhs_len > l_temp) + { + *ret_string = hist_error (string, starting_index, i, SUBST_FAILED); + free (result); + free (temp); + return (-1); + } + + /* Find the first occurrence of THIS in TEMP. */ + si = 0; + for (failed = 1; (si + subst_lhs_len) <= l_temp; si++) + if (STREQN (temp+si, subst_lhs, subst_lhs_len)) + { + int len = subst_rhs_len - subst_lhs_len + l_temp; + new_event = xmalloc (1 + len); + strncpy (new_event, temp, si); + strncpy (new_event + si, subst_rhs, subst_rhs_len); + strncpy (new_event + si + subst_rhs_len, + temp + si + subst_lhs_len, + l_temp - (si + subst_lhs_len)); + new_event[len] = '\0'; + free (temp); + temp = new_event; + + failed = 0; + + if (substitute_globally) + { + si += subst_rhs_len; + l_temp = strlen (temp); + substitute_globally++; + continue; + } + else + break; + } + + if (substitute_globally > 1) + { + substitute_globally = 0; + continue; /* don't want to increment i */ + } + + if (failed == 0) + continue; /* don't want to increment i */ + + *ret_string = hist_error (string, starting_index, i, SUBST_FAILED); + free (result); + free (temp); + return (-1); + } + } + i += 2; + } + /* Done with modfiers. */ + /* Believe it or not, we have to back the pointer up by one. */ + --i; + +#if defined (SHELL) + if (want_quotes) + { + char *x; + + if (want_quotes == 'q') + x = single_quote (temp); + else if (want_quotes == 'x') + x = quote_breaks (temp); + else + x = savestring (temp); + + free (temp); + temp = x; + } +#endif /* SHELL */ + + n = strlen (temp); + if (n > result_len) + result = xrealloc (result, n + 2); + strcpy (result, temp); + free (temp); + + *end_index_ptr = i; + *ret_string = result; + return (print_only); +} + +/* Expand the string STRING, placing the result into OUTPUT, a pointer + to a string. Returns: + + -1) If there was an error in expansion. + 0) If no expansions took place (or, if the only change in + the text was the de-slashifying of the history expansion + character) + 1) If expansions did take place + 2) If the `p' modifier was given and the caller should print the result + + If an error ocurred in expansion, then OUTPUT contains a descriptive + error message. */ + +#define ADD_STRING(s) \ + do \ + { \ + int sl = strlen (s); \ + j += sl; \ + if (j >= result_len) \ + { \ + while (j >= result_len) \ + result_len += 128; \ + result = xrealloc (result, result_len); \ + } \ + strcpy (result + j - sl, s); \ + } \ + while (0) + +#define ADD_CHAR(c) \ + do \ + { \ + if (j >= result_len - 1) \ + result = xrealloc (result, result_len += 64); \ + result[j++] = c; \ + result[j] = '\0'; \ + } \ + while (0) + +int +history_expand (hstring, output) + char *hstring; + char **output; +{ + register int j; + int i, r, l, passc, cc, modified, eindex, only_printing; + char *string; + + /* The output string, and its length. */ + int result_len; + char *result; + + /* Used when adding the string. */ + char *temp; + + /* Setting the history expansion character to 0 inhibits all + history expansion. */ + if (history_expansion_char == 0) + { + *output = savestring (hstring); + return (0); + } + + /* Prepare the buffer for printing error messages. */ + result = xmalloc (result_len = 256); + result[0] = '\0'; + + only_printing = modified = 0; + l = strlen (hstring); + + /* Grovel the string. Only backslash can quote the history escape + character. We also handle arg specifiers. */ + + /* Before we grovel forever, see if the history_expansion_char appears + anywhere within the text. */ + + /* The quick substitution character is a history expansion all right. That + is to say, "^this^that^" is equivalent to "!!:s^this^that^", and in fact, + that is the substitution that we do. */ + if (hstring[0] == history_subst_char) + { + string = xmalloc (l + 5); + + string[0] = string[1] = history_expansion_char; + string[2] = ':'; + string[3] = 's'; + strcpy (string + 4, hstring); + l += 4; + } + else + { + string = hstring; + /* If not quick substitution, still maybe have to do expansion. */ + + /* `!' followed by one of the characters in history_no_expand_chars + is NOT an expansion. */ + for (i = 0; string[i]; i++) + { + cc = string[i + 1]; + if (string[i] == history_expansion_char) + { + if (!cc || member (cc, history_no_expand_chars)) + continue; +#if defined (SHELL) + /* The shell uses ! as a pattern negation character + in globbing [...] expressions, so let those pass + without expansion. */ + else if (i > 0 && (string[i - 1] == '[') && + member (']', string + i + 1)) + continue; +#endif /* SHELL */ + else + break; + } +#if defined (SHELL) + else if (string[i] == '\'') + { + /* If this is bash, single quotes inhibit history expansion. */ + i++; + rl_string_extract_single_quoted (string, &i); + } + else if (string[i] == '\\') + { + /* If this is bash, allow backslashes to quote single + quotes and + the history expansion character. */ + if (cc == '\'' || cc == history_expansion_char) + i++; + } +#endif /* SHELL */ + } + + if (string[i] != history_expansion_char) + { + free (result); + *output = savestring (string); + return (0); + } + } + + /* Extract and perform the substitution. */ + for (passc = i = j = 0; i < l; i++) + { + int tchar = string[i]; + + if (passc) + { + passc = 0; + ADD_CHAR (tchar); + continue; + } + + if (tchar == history_expansion_char) + tchar = -3; + + switch (tchar) + { + default: + ADD_CHAR (string[i]); + break; + + case '\\': + passc++; + ADD_CHAR (tchar); + break; + +#if defined (SHELL) + case '\'': + { + /* If this is bash, single quotes inhibit history expansion. */ + int quote, slen; + + quote = i++; + rl_string_extract_single_quoted (string, &i); + + slen = i - quote + 2; + temp = xmalloc (slen); + strncpy (temp, string + quote, slen); + temp[slen - 1] = '\0'; + ADD_STRING (temp); + free (temp); + break; + } +#endif /* SHELL */ + + case -3: /* history_expansion_char */ + cc = string[i + 1]; + + /* If the history_expansion_char is followed by one of the + characters in history_no_expand_chars, then it is not a + candidate for expansion of any kind. */ + if (member (cc, history_no_expand_chars)) + { + ADD_CHAR (string[i]); + break; + } + +#if defined (NO_BANG_HASH_MODIFIERS) + /* There is something that is listed as a `word specifier' in csh + documentation which means `the expanded text to this point'. + That is not a word specifier, it is an event specifier. If we + don't want to allow modifiers with `!#', just stick the current + output line in again. */ + if (cc == '#') + { + if (result) + { + temp = xmalloc (1 + strlen (result)); + strcpy (temp, result); + ADD_STRING (temp); + free (temp); + } + i++; + break; + } +#endif + + r = history_expand_internal (string, i, &eindex, &temp, result); + if (r < 0) + { + *output = temp; + free (result); + if (string != hstring) + free (string); + return -1; + } + else + { + if (temp) + { + modified++; + if (*temp) + ADD_STRING (temp); + free (temp); + } + only_printing = r == 1; + i = eindex; + } + break; + } + } + + *output = result; + if (string != hstring) + free (string); + + if (only_printing) + { + add_history (result); + return (2); + } + + return (modified != 0); +} + +/* Return a consed string which is the word specified in SPEC, and found + in FROM. NULL is returned if there is no spec. The address of + ERROR_POINTER is returned if the word specified cannot be found. + CALLER_INDEX is the offset in SPEC to start looking; it is updated + to point to just after the last character parsed. */ +static char * +get_history_word_specifier (spec, from, caller_index) + char *spec, *from; + int *caller_index; +{ + register int i = *caller_index; + int first, last; + int expecting_word_spec = 0; + char *result; + + /* The range of words to return doesn't exist yet. */ + first = last = 0; + result = (char *)NULL; + + /* If we found a colon, then this *must* be a word specification. If + it isn't, then it is an error. */ + if (spec[i] == ':') + { + i++; + expecting_word_spec++; + } + + /* Handle special cases first. */ + + /* `%' is the word last searched for. */ + if (spec[i] == '%') + { + *caller_index = i + 1; + return (search_match ? savestring (search_match) : savestring ("")); + } + + /* `*' matches all of the arguments, but not the command. */ + if (spec[i] == '*') + { + *caller_index = i + 1; + result = history_arg_extract (1, '$', from); + return (result ? result : savestring ("")); + } + + /* `$' is last arg. */ + if (spec[i] == '$') + { + *caller_index = i + 1; + return (history_arg_extract ('$', '$', from)); + } + + /* Try to get FIRST and LAST figured out. */ + + if (spec[i] == '-') + first = 0; + else if (spec[i] == '^') + first = 1; + else if (digit_p (spec[i]) && expecting_word_spec) + { + for (first = 0; digit_p (spec[i]); i++) + first = (first * 10) + digit_value (spec[i]); + } + else + return ((char *)NULL); /* no valid `first' for word specifier */ + + if (spec[i] == '^' || spec[i] == '*') + { + last = (spec[i] == '^') ? 1 : '$'; /* x* abbreviates x-$ */ + i++; + } + else if (spec[i] != '-') + last = first; + else + { + i++; + + if (digit_p (spec[i])) + { + for (last = 0; digit_p (spec[i]); i++) + last = (last * 10) + digit_value (spec[i]); + } + else if (spec[i] == '$') + { + i++; + last = '$'; + } + else if (!spec[i] || spec[i] == ':') /* could be modifier separator */ + last = -1; /* x- abbreviates x-$ omitting word `$' */ + } + + *caller_index = i; + + if (last >= first || last == '$' || last < 0) + result = history_arg_extract (first, last, from); + + return (result ? result : (char *)&error_pointer); +} + +/* Extract the args specified, starting at FIRST, and ending at LAST. + The args are taken from STRING. If either FIRST or LAST is < 0, + then make that arg count from the right (subtract from the number of + tokens, so that FIRST = -1 means the next to last token on the line). + If LAST is `$' the last arg from STRING is used. */ +char * +history_arg_extract (first, last, string) + int first, last; + char *string; +{ + register int i, len; + char *result = (char *)NULL; + int size = 0, offset = 0; + char **list; + + /* XXX - think about making history_tokenize return a struct array, + each struct in array being a string and a length to avoid the + calls to strlen below. */ + if ((list = history_tokenize (string)) == NULL) + return ((char *)NULL); + + for (len = 0; list[len]; len++) + ; + + if (last < 0) + last = len + last - 1; + + if (first < 0) + first = len + first - 1; + + if (last == '$') + last = len - 1; + + if (first == '$') + first = len - 1; + + last++; + + if (first >= len || last > len || first < 0 || last < 0 || first > last) + result = ((char *)NULL); + else + { + for (size = 0, i = first; i < last; i++) + size += strlen (list[i]) + 1; + result = xmalloc (size + 1); + result[0] = '\0'; + + for (i = first; i < last; i++) + { + strcpy (result + offset, list[i]); + offset += strlen (list[i]); + if (i + 1 < last) + { + result[offset++] = ' '; + result[offset] = 0; + } + } + } + + for (i = 0; i < len; i++) + free (list[i]); + free (list); + + return (result); +} + +#define slashify_in_quotes "\\`\"$" + +/* Parse STRING into tokens and return an array of strings. If WIND is + not -1 and INDP is not null, we also want the word surrounding index + WIND. The position in the returned array of strings is returned in + *INDP. */ +static char ** +history_tokenize_internal (string, wind, indp) + char *string; + int wind, *indp; +{ + char **result = (char **)NULL; + register int i, start, result_index, size; + int len; + + i = result_index = size = 0; + + /* Get a token, and stuff it into RESULT. The tokens are split + exactly where the shell would split them. */ + while (string[i]) + { + int delimiter = 0; + + /* Skip leading whitespace. */ + for (; string[i] && whitespace (string[i]); i++) + ; + if (!string[i] || string[i] == history_comment_char) + return (result); + + start = i; + + if (member (string[i], "()\n")) + { + i++; + goto got_token; + } + + if (member (string[i], "<>;&|$")) + { + int peek = string[i + 1]; + + if (peek == string[i] && peek != '$') + { + if (peek == '<' && string[i + 2] == '-') + i++; + i += 2; + goto got_token; + } + else + { + if ((peek == '&' && (string[i] == '>' || string[i] == '<')) || + ((peek == '>') && (string[i] == '&')) || + ((peek == '(') && (string[i] == '$'))) + { + i += 2; + goto got_token; + } + } + if (string[i] != '$') + { + i++; + goto got_token; + } + } + + /* Get word from string + i; */ + + if (member (string[i], "\"'`")) + delimiter = string[i++]; + + for (; string[i]; i++) + { + if (string[i] == '\\' && string[i + 1] == '\n') + { + i++; + continue; + } + + if (string[i] == '\\' && delimiter != '\'' && + (delimiter != '"' || member (string[i], slashify_in_quotes))) + { + i++; + continue; + } + + if (delimiter && string[i] == delimiter) + { + delimiter = 0; + continue; + } + + if (!delimiter && (member (string[i], " \t\n;&()|<>"))) + break; + + if (!delimiter && member (string[i], "\"'`")) + delimiter = string[i]; + } + got_token: + + /* If we are looking for the word in which the character at a + particular index falls, remember it. */ + if (indp && wind >= 0 && wind >= start && wind < i) + *indp = result_index; + + len = i - start; + if (result_index + 2 >= size) + result = (char **)xrealloc (result, ((size += 10) * sizeof (char *))); + result[result_index] = xmalloc (1 + len); + strncpy (result[result_index], string + start, len); + result[result_index][len] = '\0'; + result[++result_index] = (char *)NULL; + } + + return (result); +} + +/* Return an array of tokens, much as the shell might. The tokens are + parsed out of STRING. */ +char ** +history_tokenize (string) + char *string; +{ + return (history_tokenize_internal (string, -1, (int *)NULL)); +} + +/* Find and return the word which contains the character at index IND + in the history line LINE. Used to save the word matched by the + last history !?string? search. */ +static char * +history_find_word (line, ind) + char *line; + int ind; +{ + char **words, *s; + int i, wind; + + words = history_tokenize_internal (line, ind, &wind); + if (wind == -1) + return ((char *)NULL); + s = words[wind]; + for (i = 0; i < wind; i++) + free (words[i]); + for (i = wind + 1; words[i]; i++) + free (words[i]); + free (words); + return s; +} + +#if defined (STATIC_MALLOC) + +/* **************************************************************** */ +/* */ +/* xmalloc and xrealloc () */ +/* */ +/* **************************************************************** */ + +static void memory_error_and_abort (); + +static char * +xmalloc (bytes) + int bytes; +{ + char *temp = (char *)malloc (bytes); + + if (!temp) + memory_error_and_abort (); + return (temp); +} + +static char * +xrealloc (pointer, bytes) + char *pointer; + int bytes; +{ + char *temp; + + if (!pointer) + temp = (char *)xmalloc (bytes); + else + temp = (char *)realloc (pointer, bytes); + + if (!temp) + memory_error_and_abort (); + + return (temp); +} + +static void +memory_error_and_abort () +{ + fprintf (stderr, "history: Out of virtual memory!\n"); + abort (); +} +#endif /* STATIC_MALLOC */ + +/* **************************************************************** */ +/* */ +/* Test Code */ +/* */ +/* **************************************************************** */ +#ifdef TEST +main () +{ + char line[1024], *t; + int done = 0; + + line[0] = 0; + + while (!done) + { + fprintf (stdout, "history%% "); + t = gets (line); + + if (!t) + strcpy (line, "quit"); + + if (line[0]) + { + char *expansion; + int result; + + using_history (); + + result = history_expand (line, &expansion); + strcpy (line, expansion); + free (expansion); + if (result) + fprintf (stderr, "%s\n", line); + + if (result < 0) + continue; + + add_history (line); + } + + if (strcmp (line, "quit") == 0) done = 1; + if (strcmp (line, "save") == 0) write_history (0); + if (strcmp (line, "read") == 0) read_history (0); + if (strcmp (line, "list") == 0) + { + register HIST_ENTRY **the_list = history_list (); + register int i; + + if (the_list) + for (i = 0; the_list[i]; i++) + fprintf (stdout, "%d: %s\n", i + history_base, the_list[i]->line); + } + if (strncmp (line, "delete", strlen ("delete")) == 0) + { + int which; + if ((sscanf (line + strlen ("delete"), "%d", &which)) == 1) + { + HIST_ENTRY *entry = remove_history (which); + if (!entry) + fprintf (stderr, "No such entry %d\n", which); + else + { + free (entry->line); + free (entry); + } + } + else + { + fprintf (stderr, "non-numeric arg given to `delete'\n"); + } + } + } +} + +#endif /* TEST */ + +/* +* Local variables: +* compile-command: "gcc -g -DTEST -o history history.c" +* end: +*/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/history.h Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,181 @@ +/* History.h -- the names of functions that you can call in history. */ + +/* The structure used to store a history entry. */ +typedef struct _hist_entry { + char *line; + char *data; +} HIST_ENTRY; + +/* A structure used to pass the current state of the history stuff around. */ +typedef struct _hist_state { + HIST_ENTRY **entries; /* Pointer to the entries themselves. */ + int offset; /* The location pointer within this array. */ + int length; /* Number of elements within this array. */ + int size; /* Number of slots allocated to this array. */ + int flags; +} HISTORY_STATE; + +/* Flag values for the `flags' member of HISTORY_STATE. */ +#define HS_STIFLED 0x01 + +/* Initialization and state management. */ + +/* Begin a session in which the history functions might be used. This + just initializes the interactive variables. */ +extern void using_history (); + +/* Return the current HISTORY_STATE of the history. */ +extern HISTORY_STATE *history_get_history_state (); + +/* Set the state of the current history array to STATE. */ +extern void history_set_history_state (); + +/* Manage the history list. */ + +/* Place STRING at the end of the history list. + The associated data field (if any) is set to NULL. */ +extern void add_history (); + +/* A reasonably useless function, only here for completeness. WHICH + is the magic number that tells us which element to delete. The + elements are numbered from 0. */ +extern HIST_ENTRY *remove_history (); + +/* Make the history entry at WHICH have LINE and DATA. This returns + the old entry so you can dispose of the data. In the case of an + invalid WHICH, a NULL pointer is returned. */ +extern HIST_ENTRY *replace_history_entry (); + +/* Stifle the history list, remembering only MAX number of entries. */ +extern void stifle_history (); + +/* Stop stifling the history. This returns the previous amount the + history was stifled by. The value is positive if the history was + stifled, negative if it wasn't. */ +extern int unstifle_history (); + +/* Return 1 if the history is stifled, 0 if it is not. */ +extern int history_is_stifled (); + +/* Information about the history list. */ + +/* Return a NULL terminated array of HIST_ENTRY which is the current input + history. Element 0 of this list is the beginning of time. If there + is no history, return NULL. */ +extern HIST_ENTRY **history_list (); + +/* Returns the number which says what history element we are now + looking at. */ +extern int where_history (); + +/* Return the history entry at the current position, as determined by + history_offset. If there is no entry there, return a NULL pointer. */ +HIST_ENTRY *current_history (); + +/* Return the history entry which is logically at OFFSET in the history + array. OFFSET is relative to history_base. */ +extern HIST_ENTRY *history_get (); + +/* Return the number of bytes that the primary history entries are using. + This just adds up the lengths of the_history->lines. */ +extern int history_total_bytes (); + +/* Moving around the history list. */ + +/* Set the position in the history list to POS. */ +int history_set_pos (); + +/* Back up history_offset to the previous history entry, and return + a pointer to that entry. If there is no previous entry, return + a NULL pointer. */ +extern HIST_ENTRY *previous_history (); + +/* Move history_offset forward to the next item in the input_history, + and return the a pointer to that entry. If there is no next entry, + return a NULL pointer. */ +extern HIST_ENTRY *next_history (); + +/* Searching the history list. */ + +/* Search the history for STRING, starting at history_offset. + If DIRECTION < 0, then the search is through previous entries, + else through subsequent. If the string is found, then + current_history () is the history entry, and the value of this function + is the offset in the line of that history entry that the string was + found in. Otherwise, nothing is changed, and a -1 is returned. */ +extern int history_search (); + +/* Search the history for STRING, starting at history_offset. + The search is anchored: matching lines must begin with string. */ +extern int history_search_prefix (); + +/* Search for STRING in the history list, starting at POS, an + absolute index into the list. DIR, if negative, says to search + backwards from POS, else forwards. + Returns the absolute index of the history element where STRING + was found, or -1 otherwise. */ +extern int history_search_pos (); + +/* Managing the history file. */ + +/* Add the contents of FILENAME to the history list, a line at a time. + If FILENAME is NULL, then read from ~/.history. Returns 0 if + successful, or errno if not. */ +extern int read_history (); + +/* Read a range of lines from FILENAME, adding them to the history list. + Start reading at the FROM'th line and end at the TO'th. If FROM + is zero, start at the beginning. If TO is less than FROM, read + until the end of the file. If FILENAME is NULL, then read from + ~/.history. Returns 0 if successful, or errno if not. */ +extern int read_history_range (); + +/* Write the current history to FILENAME. If FILENAME is NULL, + then write the history list to ~/.history. Values returned + are as in read_history (). */ +extern int write_history (); + +/* Append NELEMENT entries to FILENAME. The entries appended are from + the end of the list minus NELEMENTs up to the end of the list. */ +int append_history (); + +/* Truncate the history file, leaving only the last NLINES lines. */ +extern int history_truncate_file (); + +/* History expansion. */ + +/* Expand the string STRING, placing the result into OUTPUT, a pointer + to a string. Returns: + + 0) If no expansions took place (or, if the only change in + the text was the de-slashifying of the history expansion + character) + 1) If expansions did take place + -1) If there was an error in expansion. + 2) If the returned line should just be printed. + + If an error ocurred in expansion, then OUTPUT contains a descriptive + error message. */ +extern int history_expand (); + +/* Extract a string segment consisting of the FIRST through LAST + arguments present in STRING. Arguments are broken up as in + the shell. */ +extern char *history_arg_extract (); + +/* Return the text of the history event beginning at the current + offset into STRING. */ +extern char *get_history_event (); + +/* Return an array of tokens, much as the shell might. The tokens are + parsed out of STRING. */ +extern char **history_tokenize (); + +/* Exported history variables. */ +extern int history_base; +extern int history_length; +extern int max_input_history; +extern char history_expansion_char; +extern char history_subst_char; +extern char history_comment_char; +extern char *history_no_expand_chars;
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/isearch.c Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,378 @@ +/* **************************************************************** */ +/* */ +/* I-Search and Searching */ +/* */ +/* **************************************************************** */ + +/* Copyright (C) 1987,1989 Free Software Foundation, Inc. + + This file contains the Readline Library (the Library), a set of + routines for providing Emacs style line input to programs that ask + for it. + + The Library is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 1, or (at your option) + any later version. + + The Library is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + The GNU General Public License is often shipped with GNU software, and + is generally kept in a file called COPYING or LICENSE. If you do not + have a copy of the license, write to the Free Software Foundation, + 675 Mass Ave, Cambridge, MA 02139, USA. */ +#define READLINE_LIBRARY + +#include <stdio.h> + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif + +#include "memalloc.h" +#include "readline.h" +#include "history.h" + +#define STREQ(a, b) (((a)[0] == (b)[0]) && (strcmp ((a), (b)) == 0)) +#define STREQN(a, b, n) (((a)[0] == (b)[0]) && (strncmp ((a), (b), (n)) == 0)) + +/* Variables imported from other files in the readline library. */ +extern Keymap _rl_keymap; +extern HIST_ENTRY *saved_line_for_history; +extern int rl_line_buffer_len; +extern int rl_point, rl_end; +extern char *rl_line_buffer; + +extern char *xmalloc (), *xrealloc (); + +static int rl_search_history (); + +/* Last line found by the current incremental search, so we don't `find' + identical lines many times in a row. */ +static char *prev_line_found; + +/* Search backwards through the history looking for a string which is typed + interactively. Start with the current line. */ +rl_reverse_search_history (sign, key) + int sign; + int key; +{ + return (rl_search_history (-sign, key)); +} + +/* Search forwards through the history looking for a string which is typed + interactively. Start with the current line. */ +rl_forward_search_history (sign, key) + int sign; + int key; +{ + return (rl_search_history (sign, key)); +} + +/* Display the current state of the search in the echo-area. + SEARCH_STRING contains the string that is being searched for, + DIRECTION is zero for forward, or 1 for reverse, + WHERE is the history list number of the current line. If it is + -1, then this line is the starting one. */ +static void +rl_display_search (search_string, reverse_p, where) + char *search_string; + int reverse_p, where; +{ + char *message; + + message = xmalloc (1 + (search_string ? strlen (search_string) : 0) + 30); + *message = '\0'; + +#if defined (NOTDEF) + if (where != -1) + sprintf (message, "[%d]", where + history_base); +#endif /* NOTDEF */ + + strcat (message, "("); + + if (reverse_p) + strcat (message, "reverse-"); + + strcat (message, "i-search)`"); + + if (search_string) + strcat (message, search_string); + + strcat (message, "': "); + rl_message ("%s", message, 0); + free (message); + rl_redisplay (); +} + +/* Search through the history looking for an interactively typed string. + This is analogous to i-search. We start the search in the current line. + DIRECTION is which direction to search; >= 0 means forward, < 0 means + backwards. */ +static int +rl_search_history (direction, invoking_key) + int direction; + int invoking_key; +{ + /* The string that the user types in to search for. */ + char *search_string; + + /* The current length of SEARCH_STRING. */ + int search_string_index; + + /* The amount of space that SEARCH_STRING has allocated to it. */ + int search_string_size; + + /* The list of lines to search through. */ + char **lines, *allocated_line = (char *)NULL; + + /* The length of LINES. */ + int hlen; + + /* Where we get LINES from. */ + HIST_ENTRY **hlist = history_list (); + + register int i = 0; + int orig_point = rl_point; + int orig_line = where_history (); + int last_found_line = orig_line; + int c, done = 0, found, failed, sline_len; + + /* The line currently being searched. */ + char *sline; + + /* Offset in that line. */ + int line_index; + + /* Non-zero if we are doing a reverse search. */ + int reverse = (direction < 0); + + /* Create an arrary of pointers to the lines that we want to search. */ + maybe_replace_line (); + if (hlist) + for (i = 0; hlist[i]; i++); + + /* Allocate space for this many lines, +1 for the current input line, + and remember those lines. */ + lines = (char **)xmalloc ((1 + (hlen = i)) * sizeof (char *)); + for (i = 0; i < hlen; i++) + lines[i] = hlist[i]->line; + + if (saved_line_for_history) + lines[i] = saved_line_for_history->line; + else + { + /* Keep track of this so we can free it. */ + allocated_line = xmalloc (1 + strlen (rl_line_buffer)); + strcpy (allocated_line, &rl_line_buffer[0]); + lines[i] = allocated_line; + } + + hlen++; + + /* The line where we start the search. */ + i = orig_line; + + /* Initialize search parameters. */ + search_string = xmalloc (search_string_size = 128); + *search_string = '\0'; + search_string_index = 0; + prev_line_found = (char *)0; /* XXX */ + + /* Normalize DIRECTION into 1 or -1. */ + direction = (direction >= 0) ? 1 : -1; + + rl_display_search (search_string, reverse, -1); + + sline = rl_line_buffer; + sline_len = strlen (sline); + line_index = rl_point; + + found = failed = 0; + while (!done) + { + Function *f = (Function *)NULL; + + /* Read a key and decide how to proceed. */ + c = rl_read_key (); + + /* Hack C to Do What I Mean. */ + if (_rl_keymap[c].type == ISFUNC) + { + f = _rl_keymap[c].function; + + if (f == rl_reverse_search_history) + c = reverse ? -1 : -2; + else if (f == rl_forward_search_history) + c = !reverse ? -1 : -2; + } + + switch (c) + { + case ESC: + done = 1; + continue; + + case -1: + if (!search_string_index) + continue; + else + { + if (reverse) + --line_index; + else + { + if (line_index != sline_len) + ++line_index; + else + ding (); + } + } + break; + + /* switch directions */ + case -2: + direction = -direction; + reverse = (direction < 0); + break; + + case CTRL ('G'): + strcpy (rl_line_buffer, lines[orig_line]); + rl_point = orig_point; + rl_end = strlen (rl_line_buffer); + rl_clear_message (); + free (allocated_line); + free (lines); + return 0; + + default: + if (CTRL_CHAR (c) || META_CHAR (c) || c == RUBOUT) + { + rl_execute_next (c); + done = 1; + continue; + } + else + { + /* Add character to search string and continue search. */ + if (search_string_index + 2 >= search_string_size) + { + search_string_size += 128; + search_string = xrealloc (search_string, search_string_size); + } + search_string[search_string_index++] = c; + search_string[search_string_index] = '\0'; + break; + } + } + + found = failed = 0; + while (1) + { + int limit = sline_len - search_string_index + 1; + + /* Search the current line. */ + while (reverse ? (line_index >= 0) : (line_index < limit)) + { + if (STREQN(search_string, sline + line_index, search_string_index)) + { + found++; + break; + } + else + line_index += direction; + } + if (found) + break; + + /* Move to the next line, but skip new copies of the line + we just found and lines shorter than the string we're + searching for. */ + do + { + /* Move to the next line. */ + i += direction; + + /* At limit for direction? */ + if (reverse ? (i < 0) : (i == hlen)) + { + failed++; + break; + } + + /* We will need these later. */ + sline = lines[i]; + sline_len = strlen (sline); + } + while ((prev_line_found && STREQ (prev_line_found, lines[i])) || + (search_string_index > sline_len)); + + if (failed) + break; + + /* Now set up the line for searching... */ + if (reverse) + line_index = sline_len - search_string_index; + else + line_index = 0; + } + + if (failed) + { + /* We cannot find the search string. Ding the bell. */ + ding (); + i = last_found_line; + continue; /* XXX - was break */ + } + + /* We have found the search string. Just display it. But don't + actually move there in the history list until the user accepts + the location. */ + if (found) + { + int line_len; + + prev_line_found = lines[i]; + line_len = strlen (lines[i]); + + if (line_len >= rl_line_buffer_len) + rl_extend_line_buffer (line_len); + + strcpy (rl_line_buffer, lines[i]); + rl_point = line_index; + rl_end = line_len; + last_found_line = i; + rl_display_search (search_string, reverse, (i == orig_line) ? -1 : i); + } + } + + /* The searching is over. The user may have found the string that she + was looking for, or else she may have exited a failing search. If + LINE_INDEX is -1, then that shows that the string searched for was + not found. We use this to determine where to place rl_point. */ + + /* First put back the original state. */ + strcpy (rl_line_buffer, lines[orig_line]); + + /* Free the search string. */ + free (search_string); + + if (last_found_line < orig_line) + rl_get_previous_history (orig_line - last_found_line); + else + rl_get_next_history (last_found_line - orig_line); + + /* If the string was not found, put point at the end of the line. */ + if (line_index < 0) + line_index = strlen (rl_line_buffer); + rl_point = line_index; + rl_clear_message (); + + free (allocated_line); + free (lines); + + return 0; +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/keymaps.c Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,200 @@ +/* keymaps.c -- Functions and keymaps for the GNU Readline library. */ + +/* Copyright (C) 1988,1989 Free Software Foundation, Inc. + + This file is part of GNU Readline, a library for reading lines + of text with interactive input and history editing. + + Readline is free software; you can redistribute it and/or modify it + under the terms of the GNU General Public License as published by the + Free Software Foundation; either version 1, or (at your option) any + later version. + + Readline is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public License + along with Readline; see the file COPYING. If not, write to the Free + Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ +#define READLINE_LIBRARY + +#if defined (HAVE_CONFIG_H) +# include "config.h" +#endif + +#if defined (HAVE_STDLIB_H) +# include <stdlib.h> +#else +# include "ansi_stdlib.h" +#endif /* HAVE_STDLIB_H */ + +#include "rlconf.h" +#include "keymaps.h" +#include "emacs_keymap.c" + +#if defined (VI_MODE) +#include "vi_keymap.c" +#endif + +extern int rl_do_lowercase_version (); +extern int rl_rubout (), rl_insert (); + +#if defined (STATIC_MALLOC) +static char *xmalloc (), *xrealloc (); +#else +extern char *xmalloc (), *xrealloc (); +#endif /* STATIC_MALLOC */ + +/* **************************************************************** */ +/* */ +/* Functions for manipulating Keymaps. */ +/* */ +/* **************************************************************** */ + + +/* Return a new, empty keymap. + Free it with free() when you are done. */ +Keymap +rl_make_bare_keymap () +{ + register int i; + Keymap keymap = (Keymap)xmalloc (KEYMAP_SIZE * sizeof (KEYMAP_ENTRY)); + + for (i = 0; i < KEYMAP_SIZE; i++) + { + keymap[i].type = ISFUNC; + keymap[i].function = (Function *)NULL; + } + + for (i = 'A'; i < ('Z' + 1); i++) + { + keymap[i].type = ISFUNC; + keymap[i].function = rl_do_lowercase_version; + } + + return (keymap); +} + +/* Return a new keymap which is a copy of MAP. */ +Keymap +rl_copy_keymap (map) + Keymap map; +{ + register int i; + Keymap temp = rl_make_bare_keymap (); + + for (i = 0; i < KEYMAP_SIZE; i++) + { + temp[i].type = map[i].type; + temp[i].function = map[i].function; + } + return (temp); +} + +/* Return a new keymap with the printing characters bound to rl_insert, + the uppercase Meta characters bound to run their lowercase equivalents, + and the Meta digits bound to produce numeric arguments. */ +Keymap +rl_make_keymap () +{ + register int i; + Keymap newmap; + + newmap = rl_make_bare_keymap (); + + /* All ASCII printing characters are self-inserting. */ + for (i = ' '; i < 127; i++) + newmap[i].function = rl_insert; + + newmap[TAB].function = rl_insert; + newmap[RUBOUT].function = rl_rubout; + newmap[CTRL('H')].function = rl_rubout; + +#if KEYMAP_SIZE > 128 + /* Printing characters in some 8-bit character sets. */ + for (i = 128; i < 160; i++) + newmap[i].function = rl_insert; + + /* ISO Latin-1 printing characters should self-insert. */ + for (i = 160; i < 256; i++) + newmap[i].function = rl_insert; +#endif /* KEYMAP_SIZE > 128 */ + + return (newmap); +} + +/* Free the storage associated with MAP. */ +void +rl_discard_keymap (map) + Keymap (map); +{ + int i; + + if (!map) + return; + + for (i = 0; i < KEYMAP_SIZE; i++) + { + switch (map[i].type) + { + case ISFUNC: + break; + + case ISKMAP: + rl_discard_keymap ((Keymap)map[i].function); + break; + + case ISMACR: + free ((char *)map[i].function); + break; + } + } +} + +#if defined (STATIC_MALLOC) + +/* **************************************************************** */ +/* */ +/* xmalloc and xrealloc () */ +/* */ +/* **************************************************************** */ + +static void memory_error_and_abort (); + +static char * +xmalloc (bytes) + int bytes; +{ + char *temp = (char *)malloc (bytes); + + if (!temp) + memory_error_and_abort (); + return (temp); +} + +static char * +xrealloc (pointer, bytes) + char *pointer; + int bytes; +{ + char *temp; + + if (!pointer) + temp = (char *)malloc (bytes); + else + temp = (char *)realloc (pointer, bytes); + + if (!temp) + memory_error_and_abort (); + return (temp); +} + +static void +memory_error_and_abort () +{ + fprintf (stderr, "readline: Out of virtual memory!\n"); + abort (); +} +#endif /* STATIC_MALLOC */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/keymaps.h Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,95 @@ +/* keymaps.h -- Manipulation of readline keymaps. */ + +/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc. + + This file is part of the GNU Readline Library, a library for + reading lines of text with interactive input and history editing. + + The GNU Readline Library is free software; you can redistribute it + and/or modify it under the terms of the GNU General Public License + as published by the Free Software Foundation; either version 1, or + (at your option) any later version. + + The GNU Readline Library is distributed in the hope that it will be + useful, but WITHOUT ANY WARRANTY; without even the implied warranty + of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + The GNU General Public License is often shipped with GNU software, and + is generally kept in a file called COPYING or LICENSE. If you do not + have a copy of the license, write to the Free Software Foundation, + 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#ifndef _KEYMAPS_H_ +#define _KEYMAPS_H_ + +#if defined (READLINE_LIBRARY) +# include "chardefs.h" +#else +# include <readline/chardefs.h> +#endif + +#if !defined (__FUNCTION_DEF) +# define __FUNCTION_DEF +typedef int Function (); +typedef void VFunction (); +typedef char *CPFunction (); +typedef char **CPPFunction (); +#endif + +/* A keymap contains one entry for each key in the ASCII set. + Each entry consists of a type and a pointer. + POINTER is the address of a function to run, or the + address of a keymap to indirect through. + TYPE says which kind of thing POINTER is. */ +typedef struct _keymap_entry { + char type; + Function *function; +} KEYMAP_ENTRY; + +/* This must be large enough to hold bindings for all of the characters + in a desired character set (e.g, 128 for ASCII, 256 for ISO Latin-x, + and so on). */ +#define KEYMAP_SIZE 256 + +/* I wanted to make the above structure contain a union of: + union { Function *function; struct _keymap_entry *keymap; } value; + but this made it impossible for me to create a static array. + Maybe I need C lessons. */ + +typedef KEYMAP_ENTRY KEYMAP_ENTRY_ARRAY[KEYMAP_SIZE]; +typedef KEYMAP_ENTRY *Keymap; + +/* The values that TYPE can have in a keymap entry. */ +#define ISFUNC 0 +#define ISKMAP 1 +#define ISMACR 2 + +extern KEYMAP_ENTRY_ARRAY emacs_standard_keymap, emacs_meta_keymap, emacs_ctlx_keymap; +extern KEYMAP_ENTRY_ARRAY vi_insertion_keymap, vi_movement_keymap; + +/* Return a new, empty keymap. + Free it with free() when you are done. */ +extern Keymap rl_make_bare_keymap (); + +/* Return a new keymap which is a copy of MAP. */ +extern Keymap rl_copy_keymap (); + +/* Return a new keymap with the printing characters bound to rl_insert, + the lowercase Meta characters bound to run their equivalents, and + the Meta digits bound to produce numeric arguments. */ +extern Keymap rl_make_keymap (); + +extern void rl_discard_keymap (); + +/* Return the keymap corresponding to a given name. Names look like + `emacs' or `emacs-meta' or `vi-insert'. */ +extern Keymap rl_get_keymap_by_name (); + +/* Return the current keymap. */ +extern Keymap rl_get_keymap (); + +/* Set the current keymap to MAP. */ +extern void rl_set_keymap (); + +#endif /* _KEYMAPS_H_ */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/memalloc.h Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,56 @@ +/* memalloc.h -- consolidate code for including alloca.h or malloc.h and + defining alloca. */ + +/* Copyright (C) 1993 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash is free software; you can redistribute it and/or modify it under + the terms of the GNU General Public License as published by the Free + Software Foundation; either version 2, or (at your option) any later + version. + + Bash is distributed in the hope that it will be useful, but WITHOUT ANY + WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + for more details. + + You should have received a copy of the GNU General Public License along + with Bash; see the file COPYING. If not, write to the Free Software + Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#if !defined (__MEMALLOC_H__) +# define __MEMALLOC_H__ + +#if defined (sparc) && defined (sun) && !defined (HAVE_ALLOCA_H) +# define HAVE_ALLOCA_H +#endif + +#if defined (__GNUC__) && !defined (HAVE_ALLOCA) +# define HAVE_ALLOCA +#endif + +#if defined (HAVE_ALLOCA_H) && !defined (HAVE_ALLOCA) +# define HAVE_ALLOCA +#endif /* HAVE_ALLOCA_H && !HAVE_ALLOCA */ + +#if !defined (BUILDING_MAKEFILE) + +#if defined (__GNUC__) +# undef alloca +# define alloca __builtin_alloca +#else /* !__GNUC__ */ +# if defined (HAVE_ALLOCA_H) +# if defined (IBMESA) +# include <malloc.h> +# else /* !IBMESA */ +# include <alloca.h> +# endif /* !IBMESA */ +# else +extern char *alloca (); +# endif /* !HAVE_ALLOCA_H */ +#endif /* !__GNUC__ */ + +#endif /* !BUILDING_MAKEFILE */ + +#endif /* __MEMALLOC_H__ */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/parens.c Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,130 @@ +/* parens.c -- Implemenation of matching parenthesis feature. */ + +/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc. + + This file is part of the GNU Readline Library, a library for + reading lines of text with interactive input and history editing. + + The GNU Readline Library is free software; you can redistribute it + and/or modify it under the terms of the GNU General Public License + as published by the Free Software Foundation; either version 1, or + (at your option) any later version. + + The GNU Readline Library is distributed in the hope that it will be + useful, but WITHOUT ANY WARRANTY; without even the implied warranty + of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + The GNU General Public License is often shipped with GNU software, and + is generally kept in a file called COPYING or LICENSE. If you do not + have a copy of the license, write to the Free Software Foundation, + 675 Mass Ave, Cambridge, MA 02139, USA. */ +#define READLINE_LIBRARY + +#include "rlconf.h" + +#if !defined (PAREN_MATCHING) + +rl_insert_close (count, invoking_key) + int count, invoking_key; +{ + return (rl_insert (count, invoking_key)); +} + +#else /* PAREN_MATCHING */ + +#include <stdio.h> +#include <sys/types.h> +#if defined (FD_SET) +# include <sys/time.h> +#endif /* FD_SET */ +#include "readline.h" + +extern int rl_explicit_arg; + +/* Non-zero means try to blink the matching open parenthesis when the + close parenthesis is inserted. */ +#if defined (FD_SET) +int rl_blink_matching_paren = 1; +#else /* !FD_SET */ +int rl_blink_matching_paren = 0; +#endif /* !FD_SET */ + +static int find_matching_open (); + +rl_insert_close (count, invoking_key) + int count, invoking_key; +{ + if (rl_explicit_arg || !rl_blink_matching_paren) + rl_insert (count, invoking_key); + else + { +#if defined (FD_SET) + int orig_point, match_point, ready; + struct timeval timer; + fd_set readfds; + + rl_insert (1, invoking_key); + rl_redisplay (); + match_point = + find_matching_open (rl_line_buffer, rl_point - 2, invoking_key); + + /* Emacs might message or ring the bell here, but I don't. */ + if (match_point < 0) + return -1; + + FD_ZERO (&readfds); + FD_SET (fileno (rl_instream), &readfds); + timer.tv_sec = 1; + timer.tv_usec = 500; + + orig_point = rl_point; + rl_point = match_point; + rl_redisplay (); + ready = select (1, &readfds, (fd_set *)NULL, (fd_set *)NULL, &timer); + rl_point = orig_point; +#else /* !FD_SET */ + rl_insert (count, invoking_key); +#endif /* !FD_SET */ + } + return 0; +} + +static int +find_matching_open (string, from, closer) + char *string; + int from, closer; +{ + register int i; + int opener, level, delimiter; + + switch (closer) + { + case ']': opener = '['; break; + case '}': opener = '{'; break; + case ')': opener = '('; break; + default: + return (-1); + } + + level = 1; /* The closer passed in counts as 1. */ + delimiter = 0; /* Delimited state unknown. */ + + for (i = from; i > -1; i--) + { + if (delimiter && (string[i] == delimiter)) + delimiter = 0; + else if ((string[i] == '\'') || (string[i] == '"')) + delimiter = rl_line_buffer[i]; + else if (!delimiter && (string[i] == closer)) + level++; + else if (!delimiter && (string[i] == opener)) + level--; + + if (!level) + break; + } + return (i); +} + +#endif /* PAREN_MATCHING */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/posixstat.h Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,149 @@ +/* posixstat.h -- Posix stat(2) definitions for systems that + don't have them. */ + +/* Copyright (C) 1987,1991 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash is free software; you can redistribute it and/or modify it + under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 1, or (at your option) + any later version. + + Bash is distributed in the hope that it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public + License for more details. + + You should have received a copy of the GNU General Public License + along with Bash; see the file COPYING. If not, write to the Free + Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ + +/* This file should be included instead of <sys/stat.h>. + It relies on the local sys/stat.h to work though. */ +#if !defined (_POSIXSTAT_H) +#define _POSIXSTAT_H + +#include <sys/stat.h> + +#if defined (isc386) +# if !defined (S_IFDIR) +# define S_IFDIR 0040000 +# endif /* !S_IFDIR */ +# if !defined (S_IFMT) +# define S_IFMT 0170000 +# endif /* !S_IFMT */ +#endif /* isc386 */ + +/* This text is taken directly from the Cadmus I was trying to + compile on: + the following MACROs are defined for X/OPEN compatibility + however, is the param correct ?? + #define S_ISBLK(s) ((s.st_mode & S_IFMT) == S_IFBLK) + + Well, the answer is no. Thus... */ +#if defined (BrainDeath) +# undef S_ISBLK +# undef S_ISCHR +# undef S_ISDIR +# undef S_ISFIFO +# undef S_ISREG +#endif /* BrainDeath */ + +/* Posix 1003.1 5.6.1.1 <sys/stat.h> file types */ + +/* Some Posix-wannabe systems define _S_IF* macros instead of S_IF*, but + do not provide the S_IS* macros that Posix requires. */ + +#if defined (_S_IFMT) && !defined (S_IFMT) +#define S_IFMT _S_IFMT +#endif +#if defined (_S_IFIFO) && !defined (S_IFIFO) +#define S_IFIFO _S_IFIFO +#endif +#if defined (_S_IFCHR) && !defined (S_IFCHR) +#define S_IFCHR _S_IFCHR +#endif +#if defined (_S_IFDIR) && !defined (S_IFDIR) +#define S_IFDIR _S_IFDIR +#endif +#if defined (_S_IFBLK) && !defined (S_IFBLK) +#define S_IFBLK _S_IFBLK +#endif +#if defined (_S_IFREG) && !defined (S_IFREG) +#define S_IFREG _S_IFREG +#endif +#if defined (_S_IFLNK) && !defined (S_IFLNK) +#define S_IFLNK _S_IFLNK +#endif +#if defined (_S_IFSOCK) && !defined (S_IFSOCK) +#define S_IFSOCK _S_IFSOCK +#endif + +/* Test for each symbol individually and define the ones necessary (some + systems claiming Posix compatibility define some but not all). */ + +#if defined (S_IFBLK) && !defined (S_ISBLK) +#define S_ISBLK(m) (((m)&S_IFMT) == S_IFBLK) /* block device */ +#endif + +#if defined (S_IFCHR) && !defined (S_ISCHR) +#define S_ISCHR(m) (((m)&S_IFMT) == S_IFCHR) /* character device */ +#endif + +#if defined (S_IFDIR) && !defined (S_ISDIR) +#define S_ISDIR(m) (((m)&S_IFMT) == S_IFDIR) /* directory */ +#endif + +#if defined (S_IFREG) && !defined (S_ISREG) +#define S_ISREG(m) (((m)&S_IFMT) == S_IFREG) /* file */ +#endif + +#if defined (S_IFIFO) && !defined (S_ISFIFO) +#define S_ISFIFO(m) (((m)&S_IFMT) == S_IFIFO) /* fifo - named pipe */ +#endif + +#if defined (S_IFLNK) && !defined (S_ISLNK) +#define S_ISLNK(m) (((m)&S_IFMT) == S_IFLNK) /* symbolic link */ +#endif + +#if defined (S_IFSOCK) && !defined (S_ISSOCK) +#define S_ISSOCK(m) (((m)&S_IFMT) == S_IFSOCK) /* socket */ +#endif + +/* + * POSIX 1003.1 5.6.1.2 <sys/stat.h> File Modes + */ + +#if !defined (S_IRWXU) +# if !defined (S_IREAD) +# define S_IREAD 00400 +# define S_IWRITE 00200 +# define S_IEXEC 00100 +# endif /* S_IREAD */ + +# if !defined (S_IRUSR) +# define S_IRUSR S_IREAD /* read, owner */ +# define S_IWUSR S_IWRITE /* write, owner */ +# define S_IXUSR S_IEXEC /* execute, owner */ + +# define S_IRGRP (S_IREAD >> 3) /* read, group */ +# define S_IWGRP (S_IWRITE >> 3) /* write, group */ +# define S_IXGRP (S_IEXEC >> 3) /* execute, group */ + +# define S_IROTH (S_IREAD >> 6) /* read, other */ +# define S_IWOTH (S_IWRITE >> 6) /* write, other */ +# define S_IXOTH (S_IEXEC >> 6) /* execute, other */ +# endif /* !S_IRUSR */ + +# define S_IRWXU (S_IRUSR | S_IWUSR | S_IXUSR) +# define S_IRWXG (S_IRGRP | S_IWGRP | S_IXGRP) +# define S_IRWXO (S_IROTH | S_IWOTH | S_IXOTH) +#endif /* !S_IRWXU */ + +/* These are non-standard, but are used in builtins.c$symbolic_umask() */ +#define S_IRUGO (S_IRUSR | S_IRGRP | S_IROTH) +#define S_IWUGO (S_IWUSR | S_IWGRP | S_IWOTH) +#define S_IXUGO (S_IXUSR | S_IXGRP | S_IXOTH) + +#endif /* _POSIXSTAT_H */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/readline.c Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,3539 @@ +/* readline.c -- a general facility for reading lines of input + with emacs style editing and completion. */ + +/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc. + + This file is part of the GNU Readline Library, a library for + reading lines of text with interactive input and history editing. + + The GNU Readline Library is free software; you can redistribute it + and/or modify it under the terms of the GNU General Public License + as published by the Free Software Foundation; either version 1, or + (at your option) any later version. + + The GNU Readline Library is distributed in the hope that it will be + useful, but WITHOUT ANY WARRANTY; without even the implied warranty + of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + The GNU General Public License is often shipped with GNU software, and + is generally kept in a file called COPYING or LICENSE. If you do not + have a copy of the license, write to the Free Software Foundation, + 675 Mass Ave, Cambridge, MA 02139, USA. */ +#define READLINE_LIBRARY + +#include <stdio.h> +#include <sys/types.h> +#include <fcntl.h> +#if !defined (NO_SYS_FILE) +# include <sys/file.h> +#endif /* !NO_SYS_FILE */ +#include <signal.h> + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif /* HAVE_UNISTD_H */ + +#if defined (HAVE_STDLIB_H) +# include <stdlib.h> +#else +# include "ansi_stdlib.h" +#endif /* HAVE_STDLIB_H */ + +#include <errno.h> +/* Not all systems declare ERRNO in errno.h... and some systems #define it! */ +#if !defined (errno) +extern int errno; +#endif /* !errno */ + +#include <setjmp.h> + +#include "posixstat.h" + +/* System-specific feature definitions and include files. */ +#include "rldefs.h" + +#if defined (GWINSZ_IN_SYS_IOCTL) || (defined (VSTATUS) && !defined (SunOS4)) +# include <sys/ioctl.h> +#endif /* GWINSZ_IN_SYS_IOCTL || VSTATUS */ + +/* Some standard library routines. */ +#include "readline.h" +#include "history.h" + +/* NOTE: Functions and variables prefixed with `_rl_' are + pseudo-global: they are global so they can be shared + between files in the readline library, but are not intended + to be visible to readline callers. */ + +/* Functions imported from other files in the library. */ +extern char *tgetstr (); +extern void rl_prep_terminal (), rl_deprep_terminal (); + +extern void _rl_bind_if_unbound (); + +/* External redisplay functions and variables from display.c */ +extern void _rl_move_vert (); +extern void _rl_update_final (); + +extern void _rl_erase_at_end_of_line (); +extern void _rl_move_cursor_relative (); + +extern int _rl_vis_botlin; +extern int _rl_last_c_pos; +extern int _rl_horizontal_scroll_mode; +extern int rl_display_fixed; +extern char *rl_display_prompt; + +/* Variables imported from complete.c. */ +extern char *rl_completer_word_break_characters; +extern char *rl_basic_word_break_characters; +extern int rl_completion_query_items; +extern int rl_complete_with_tilde_expansion; + +#if defined (VI_MODE) +extern void _rl_vi_set_last (); +extern void _rl_vi_reset_last (); +extern void _rl_vi_done_inserting (); +#endif /* VI_MODE */ + +/* Forward declarations used in this file. */ +void _rl_free_history_entry (); + +int _rl_dispatch (); +void _rl_set_screen_size (); +int _rl_output_character_function (); + +static char *readline_internal (); +static void readline_initialize_everything (); +static int init_terminal_io (); +static void start_using_history (); +static void bind_arrow_keys (); + +#if !defined (__GO32__) +static void readline_default_bindings (); +#endif /* !__GO32__ */ + +#if defined (__GO32__) +# include <sys/pc.h> +# undef HANDLE_SIGNALS +#endif /* __GO32__ */ + +#if defined (STATIC_MALLOC) +static char *xmalloc (), *xrealloc (); +#else +extern char *xmalloc (), *xrealloc (); +#endif /* STATIC_MALLOC */ + + +/* **************************************************************** */ +/* */ +/* Line editing input utility */ +/* */ +/* **************************************************************** */ + +static char *LibraryVersion = "2.0"; + +/* A pointer to the keymap that is currently in use. + By default, it is the standard emacs keymap. */ +Keymap _rl_keymap = emacs_standard_keymap; + +/* The current style of editing. */ +int rl_editing_mode = emacs_mode; + +/* Non-zero if the previous command was a kill command. */ +static int last_command_was_kill = 0; + +/* The current value of the numeric argument specified by the user. */ +int rl_numeric_arg = 1; + +/* Non-zero if an argument was typed. */ +int rl_explicit_arg = 0; + +/* Temporary value used while generating the argument. */ +int rl_arg_sign = 1; + +/* Non-zero means we have been called at least once before. */ +static int rl_initialized = 0; + +/* If non-zero, this program is running in an EMACS buffer. */ +static int running_in_emacs = 0; + +/* The current offset in the current input line. */ +int rl_point; + +/* Mark in the current input line. */ +int rl_mark; + +/* Length of the current input line. */ +int rl_end; + +/* Make this non-zero to return the current input_line. */ +int rl_done; + +/* The last function executed by readline. */ +Function *rl_last_func = (Function *)NULL; + +/* Top level environment for readline_internal (). */ +static jmp_buf readline_top_level; + +/* The streams we interact with. */ +static FILE *in_stream, *out_stream; + +/* The names of the streams that we do input and output to. */ +FILE *rl_instream = (FILE *)NULL; +FILE *rl_outstream = (FILE *)NULL; + +/* Non-zero means echo characters as they are read. */ +int readline_echoing_p = 1; + +/* Current prompt. */ +char *rl_prompt; +int rl_visible_prompt_length = 0; + +/* The number of characters read in order to type this complete command. */ +int rl_key_sequence_length = 0; + +/* If non-zero, then this is the address of a function to call just + before readline_internal () prints the first prompt. */ +Function *rl_startup_hook = (Function *)NULL; + +/* What we use internally. You should always refer to RL_LINE_BUFFER. */ +static char *the_line; + +/* The character that can generate an EOF. Really read from + the terminal driver... just defaulted here. */ +int _rl_eof_char = CTRL ('D'); + +/* Non-zero makes this the next keystroke to read. */ +int rl_pending_input = 0; + +/* Pointer to a useful terminal name. */ +char *rl_terminal_name = (char *)NULL; + +/* Non-zero means to always use horizontal scrolling in line display. */ +int _rl_horizontal_scroll_mode = 0; + +/* Non-zero means to display an asterisk at the starts of history lines + which have been modified. */ +int _rl_mark_modified_lines = 0; + +/* The style of `bell' notification preferred. This can be set to NO_BELL, + AUDIBLE_BELL, or VISIBLE_BELL. */ +int _rl_bell_preference = AUDIBLE_BELL; + +/* Line buffer and maintenence. */ +char *rl_line_buffer = (char *)NULL; +int rl_line_buffer_len = 0; +#define DEFAULT_BUFFER_SIZE 256 + +/* Forward declarations used by the display and termcap code. */ +int term_xn; +int screenwidth, screenheight, screenchars; + + +/* **************************************************************** */ +/* */ +/* `Forward' declarations */ +/* */ +/* **************************************************************** */ + +/* Non-zero means do not parse any lines other than comments and + parser directives. */ +unsigned char _rl_parsing_conditionalized_out = 0; + +/* Non-zero means to save keys that we dispatch on in a kbd macro. */ +static int defining_kbd_macro = 0; + +/* Non-zero means to convert characters with the meta bit set to + escape-prefixed characters so we can indirect through + emacs_meta_keymap or vi_escape_keymap. */ +int _rl_convert_meta_chars_to_ascii = 1; + +/* Non-zero means to output characters with the meta bit set directly + rather than as a meta-prefixed escape sequence. */ +int _rl_output_meta_chars = 0; + +/* Non-zero tells rl_delete_text and rl_insert_text to not add to + the undo list. */ +static int doing_an_undo = 0; + +/* **************************************************************** */ +/* */ +/* Top Level Functions */ +/* */ +/* **************************************************************** */ + +/* Non-zero means treat 0200 bit in terminal input as Meta bit. */ +int _rl_meta_flag = 0; /* Forward declaration */ + +/* Read a line of input. Prompt with PROMPT. A NULL PROMPT means + none. A return value of NULL means that EOF was encountered. */ +char * +readline (prompt) + char *prompt; +{ + char *value; + + rl_prompt = prompt; + + /* If we are at EOF return a NULL string. */ + if (rl_pending_input == EOF) + { + rl_pending_input = 0; + return ((char *)NULL); + } + + rl_visible_prompt_length = rl_expand_prompt (rl_prompt); + + rl_initialize (); + rl_prep_terminal (_rl_meta_flag); + +#if defined (HANDLE_SIGNALS) + rl_set_signals (); +#endif + + value = readline_internal (); + rl_deprep_terminal (); + +#if defined (HANDLE_SIGNALS) + rl_clear_signals (); +#endif + + return (value); +} + +/* Read a line of input from the global rl_instream, doing output on + the global rl_outstream. + If rl_prompt is non-null, then that is our prompt. */ +static char * +readline_internal () +{ + int lastc, c, eof_found; + + in_stream = rl_instream; + out_stream = rl_outstream; + + lastc = -1; + eof_found = 0; + + if (rl_startup_hook) + (*rl_startup_hook) (); + + if (!readline_echoing_p) + { + if (rl_prompt) + { + fprintf (out_stream, "%s", rl_prompt); + fflush (out_stream); + } + } + else + { + rl_on_new_line (); + rl_redisplay (); +#if defined (VI_MODE) + if (rl_editing_mode == vi_mode) + rl_vi_insertion_mode (); +#endif /* VI_MODE */ + } + + while (!rl_done) + { + int lk = last_command_was_kill; + int code; + + code = setjmp (readline_top_level); + + if (code) + rl_redisplay (); + + if (!rl_pending_input) + { + /* Then initialize the argument and number of keys read. */ + rl_init_argument (); + rl_key_sequence_length = 0; + } + + c = rl_read_key (); + + /* EOF typed to a non-blank line is a <NL>. */ + if (c == EOF && rl_end) + c = NEWLINE; + + /* The character _rl_eof_char typed to blank line, and not as the + previous character is interpreted as EOF. */ + if (((c == _rl_eof_char && lastc != c) || c == EOF) && !rl_end) + { + eof_found = 1; + break; + } + + lastc = c; + _rl_dispatch (c, _rl_keymap); + + /* If there was no change in last_command_was_kill, then no kill + has taken place. Note that if input is pending we are reading + a prefix command, so nothing has changed yet. */ + if (!rl_pending_input) + { + if (lk == last_command_was_kill) + last_command_was_kill = 0; + } + +#if defined (VI_MODE) + /* In vi mode, when you exit insert mode, the cursor moves back + over the previous character. We explicitly check for that here. */ + if (rl_editing_mode == vi_mode && _rl_keymap == vi_movement_keymap) + rl_vi_check (); +#endif /* VI_MODE */ + + if (!rl_done) + rl_redisplay (); + } + + /* Restore the original of this history line, iff the line that we + are editing was originally in the history, AND the line has changed. */ + { + HIST_ENTRY *entry = current_history (); + + if (entry && rl_undo_list) + { + char *temp = savestring (the_line); + rl_revert_line (); + entry = replace_history_entry (where_history (), the_line, + (HIST_ENTRY *)NULL); + _rl_free_history_entry (entry); + + strcpy (the_line, temp); + free (temp); + } + } + + /* At any rate, it is highly likely that this line has an undo list. Get + rid of it now. */ + if (rl_undo_list) + free_undo_list (); + + if (eof_found) + return (char *)NULL; + else + return (savestring (the_line)); +} + +/* **************************************************************** */ +/* */ +/* Character Input Buffering */ +/* */ +/* **************************************************************** */ + +static int pop_index = 0, push_index = 0, ibuffer_len = 511; +static unsigned char ibuffer[512]; + +/* Non-null means it is a pointer to a function to run while waiting for + character input. */ +Function *rl_event_hook = (Function *)NULL; + +#define any_typein (push_index != pop_index) + +/* Add KEY to the buffer of characters to be read. */ +rl_stuff_char (key) + int key; +{ + if (key == EOF) + { + key = NEWLINE; + rl_pending_input = EOF; + } + ibuffer[push_index++] = key; + if (push_index >= ibuffer_len) + push_index = 0; + return push_index; +} + +/* Return the amount of space available in the + buffer for stuffing characters. */ +int +ibuffer_space () +{ + if (pop_index > push_index) + return (pop_index - push_index); + else + return (ibuffer_len - (push_index - pop_index)); +} + +/* Get a key from the buffer of characters to be read. + Return the key in KEY. + Result is KEY if there was a key, or 0 if there wasn't. */ +int +rl_get_char (key) + int *key; +{ + if (push_index == pop_index) + return (0); + + *key = ibuffer[pop_index++]; + + if (pop_index >= ibuffer_len) + pop_index = 0; + + return (1); +} + +/* Stuff KEY into the *front* of the input buffer. + Returns non-zero if successful, zero if there is + no space left in the buffer. */ +int +rl_unget_char (key) + int key; +{ + if (ibuffer_space ()) + { + pop_index--; + if (pop_index < 0) + pop_index = ibuffer_len - 1; + ibuffer[pop_index] = key; + return (1); + } + return (0); +} + +/* If a character is available to be read, then read it + and stuff it into IBUFFER. Otherwise, just return. */ +void +rl_gather_tyi () +{ +#if defined (__GO32__) + char input; + + if (isatty (0)) + { + int i = rl_getc (); + + if (i != EOF) + rl_stuff_char (i); + } + else if (kbhit () && ibuffer_space ()) + rl_stuff_char (getkey ()); +#else /* !__GO32__ */ + + int tty = fileno (in_stream); + register int tem, result = -1; + int chars_avail; + char input; + +#if defined (FIONREAD) + result = ioctl (tty, FIONREAD, &chars_avail); +#endif + +#if defined (O_NDELAY) + if (result == -1) + { + int flags; + + flags = fcntl (tty, F_GETFL, 0); + + fcntl (tty, F_SETFL, (flags | O_NDELAY)); + chars_avail = read (tty, &input, 1); + + fcntl (tty, F_SETFL, flags); + if (chars_avail == -1 && errno == EAGAIN) + return; + } +#endif /* O_NDELAY */ + + /* If there's nothing available, don't waste time trying to read + something. */ + if (chars_avail == 0) + return; + + tem = ibuffer_space (); + + if (chars_avail > tem) + chars_avail = tem; + + /* One cannot read all of the available input. I can only read a single + character at a time, or else programs which require input can be + thwarted. If the buffer is larger than one character, I lose. + Damn! */ + if (tem < ibuffer_len) + chars_avail = 0; + + if (result != -1) + { + while (chars_avail--) + rl_stuff_char (rl_getc (in_stream)); + } + else + { + if (chars_avail) + rl_stuff_char (input); + } +#endif /* !__GO32__ */ +} + +static int next_macro_key (); +/* Read a key, including pending input. */ +int +rl_read_key () +{ + int c; + + rl_key_sequence_length++; + + if (rl_pending_input) + { + c = rl_pending_input; + rl_pending_input = 0; + } + else + { + /* If input is coming from a macro, then use that. */ + if (c = next_macro_key ()) + return (c); + + /* If the user has an event function, then call it periodically. */ + if (rl_event_hook) + { + while (rl_event_hook && !rl_get_char (&c)) + { + (*rl_event_hook) (); + rl_gather_tyi (); + } + } + else + { + if (!rl_get_char (&c)) + c = rl_getc (in_stream); + } + } + + return (c); +} + +/* Found later in this file. */ +static void add_macro_char (), with_macro_input (); + +/* Do the command associated with KEY in MAP. + If the associated command is really a keymap, then read + another key, and dispatch into that map. */ +int +_rl_dispatch (key, map) + register int key; + Keymap map; +{ + int r = 0; + + if (META_CHAR (key) && _rl_convert_meta_chars_to_ascii) + { + if (map[ESC].type == ISKMAP) + { + if (defining_kbd_macro) + add_macro_char (ESC); + map = FUNCTION_TO_KEYMAP (map, ESC); + key = UNMETA (key); + rl_key_sequence_length += 2; + return (_rl_dispatch (key, map)); + } + else + ding (); + return 0; + } + + if (defining_kbd_macro) + add_macro_char (key); + + switch (map[key].type) + { + case ISFUNC: + { + Function *func = map[key].function; + + if (func != (Function *)NULL) + { + /* Special case rl_do_lowercase_version (). */ + if (func == rl_do_lowercase_version) + return (_rl_dispatch (to_lower (key), map)); + + r = (*map[key].function)(rl_numeric_arg * rl_arg_sign, key); + + /* If we have input pending, then the last command was a prefix + command. Don't change the state of rl_last_func. Otherwise, + remember the last command executed in this variable. */ + if (!rl_pending_input) + rl_last_func = map[key].function; + } + else + { + rl_abort (); + return -1; + } + } + break; + + case ISKMAP: + if (map[key].function != (Function *)NULL) + { + int newkey; + + rl_key_sequence_length++; + newkey = rl_read_key (); + r = _rl_dispatch (newkey, FUNCTION_TO_KEYMAP (map, key)); + } + else + { + rl_abort (); + return -1; + } + break; + + case ISMACR: + if (map[key].function != (Function *)NULL) + { + char *macro; + + macro = savestring ((char *)map[key].function); + with_macro_input (macro); + return 0; + } + break; + } +#if defined (VI_MODE) + if (rl_editing_mode == vi_mode && _rl_keymap == vi_movement_keymap && + rl_vi_textmod_command (key)) + _rl_vi_set_last (key, rl_numeric_arg, rl_arg_sign); +#endif + return (r); +} + + +/* **************************************************************** */ +/* */ +/* Hacking Keyboard Macros */ +/* */ +/* **************************************************************** */ + +/* The currently executing macro string. If this is non-zero, + then it is a malloc ()'ed string where input is coming from. */ +static char *executing_macro = (char *)NULL; + +/* The offset in the above string to the next character to be read. */ +static int executing_macro_index = 0; + +/* The current macro string being built. Characters get stuffed + in here by add_macro_char (). */ +static char *current_macro = (char *)NULL; + +/* The size of the buffer allocated to current_macro. */ +static int current_macro_size = 0; + +/* The index at which characters are being added to current_macro. */ +static int current_macro_index = 0; + +/* A structure used to save nested macro strings. + It is a linked list of string/index for each saved macro. */ +struct saved_macro { + struct saved_macro *next; + char *string; + int sindex; +}; + +/* The list of saved macros. */ +struct saved_macro *macro_list = (struct saved_macro *)NULL; + +/* Forward declarations of static functions. Thank you C. */ +static void push_executing_macro (), pop_executing_macro (); + +/* This one has to be declared earlier in the file. */ +/* static void add_macro_char (); */ + +/* Set up to read subsequent input from STRING. + STRING is free ()'ed when we are done with it. */ +static void +with_macro_input (string) + char *string; +{ + push_executing_macro (); + executing_macro = string; + executing_macro_index = 0; +} + +/* Return the next character available from a macro, or 0 if + there are no macro characters. */ +static int +next_macro_key () +{ + if (!executing_macro) + return (0); + + if (!executing_macro[executing_macro_index]) + { + pop_executing_macro (); + return (next_macro_key ()); + } + + return (executing_macro[executing_macro_index++]); +} + +/* Save the currently executing macro on a stack of saved macros. */ +static void +push_executing_macro () +{ + struct saved_macro *saver; + + saver = (struct saved_macro *)xmalloc (sizeof (struct saved_macro)); + saver->next = macro_list; + saver->sindex = executing_macro_index; + saver->string = executing_macro; + + macro_list = saver; +} + +/* Discard the current macro, replacing it with the one + on the top of the stack of saved macros. */ +static void +pop_executing_macro () +{ + if (executing_macro) + free (executing_macro); + + executing_macro = (char *)NULL; + executing_macro_index = 0; + + if (macro_list) + { + struct saved_macro *disposer = macro_list; + executing_macro = macro_list->string; + executing_macro_index = macro_list->sindex; + macro_list = macro_list->next; + free (disposer); + } +} + +/* Add a character to the macro being built. */ +static void +add_macro_char (c) + int c; +{ + if (current_macro_index + 1 >= current_macro_size) + { + if (!current_macro) + current_macro = xmalloc (current_macro_size = 25); + else + current_macro = xrealloc (current_macro, current_macro_size += 25); + } + + current_macro[current_macro_index++] = c; + current_macro[current_macro_index] = '\0'; +} + +/* Begin defining a keyboard macro. + Keystrokes are recorded as they are executed. + End the definition with rl_end_kbd_macro (). + If a numeric argument was explicitly typed, then append this + definition to the end of the existing macro, and start by + re-executing the existing macro. */ +rl_start_kbd_macro (ignore1, ignore2) + int ignore1, ignore2; +{ + if (defining_kbd_macro) + { + rl_abort (); + return -1; + } + + if (rl_explicit_arg) + { + if (current_macro) + with_macro_input (savestring (current_macro)); + } + else + current_macro_index = 0; + + defining_kbd_macro = 1; + return 0; +} + +/* Stop defining a keyboard macro. + A numeric argument says to execute the macro right now, + that many times, counting the definition as the first time. */ +rl_end_kbd_macro (count, ignore) + int count, ignore; +{ + if (!defining_kbd_macro) + { + rl_abort (); + return -1; + } + + current_macro_index -= (rl_key_sequence_length - 1); + current_macro[current_macro_index] = '\0'; + + defining_kbd_macro = 0; + + return (rl_call_last_kbd_macro (--count, 0)); +} + +/* Execute the most recently defined keyboard macro. + COUNT says how many times to execute it. */ +rl_call_last_kbd_macro (count, ignore) + int count, ignore; +{ + if (!current_macro) + rl_abort (); + + if (defining_kbd_macro) + { + ding (); /* no recursive macros */ + current_macro[--current_macro_index] = '\0'; /* erase this char */ + return 0; + } + + while (count--) + with_macro_input (savestring (current_macro)); + return 0; +} + +void +_rl_kill_kbd_macro () +{ + if (current_macro) + { + free (current_macro); + current_macro = (char *) NULL; + } + current_macro_size = current_macro_index = 0; + + if (executing_macro) + { + free (executing_macro); + executing_macro = (char *) NULL; + } + executing_macro_index = 0; + + defining_kbd_macro = 0; +} + +/* **************************************************************** */ +/* */ +/* Initializations */ +/* */ +/* **************************************************************** */ + +/* Initliaze readline (and terminal if not already). */ +rl_initialize () +{ + /* If we have never been called before, initialize the + terminal and data structures. */ + if (!rl_initialized) + { + readline_initialize_everything (); + rl_initialized++; + } + + /* Initalize the current line information. */ + rl_point = rl_end = 0; + the_line = rl_line_buffer; + the_line[0] = 0; + + /* We aren't done yet. We haven't even gotten started yet! */ + rl_done = 0; + + /* Tell the history routines what is going on. */ + start_using_history (); + + /* Make the display buffer match the state of the line. */ + rl_reset_line_state (); + + /* No such function typed yet. */ + rl_last_func = (Function *)NULL; + + /* Parsing of key-bindings begins in an enabled state. */ + _rl_parsing_conditionalized_out = 0; + + return 0; +} + +/* Initialize the entire state of the world. */ +static void +readline_initialize_everything () +{ + char *t; + + /* Find out if we are running in Emacs. */ + running_in_emacs = getenv ("EMACS") != (char *)0; + + /* Set up input and output if they are not already set up. */ + if (!rl_instream) + rl_instream = stdin; + + if (!rl_outstream) + rl_outstream = stdout; + + /* Bind in_stream and out_stream immediately. These values may change, + but they may also be used before readline_internal () is called. */ + in_stream = rl_instream; + out_stream = rl_outstream; + + /* Allocate data structures. */ + if (!rl_line_buffer) + rl_line_buffer = xmalloc (rl_line_buffer_len = DEFAULT_BUFFER_SIZE); + + /* Initialize the terminal interface. */ + init_terminal_io ((char *)NULL); + +#if !defined (__GO32__) + /* Bind tty characters to readline functions. */ + readline_default_bindings (); +#endif /* !__GO32__ */ + + /* Initialize the function names. */ + rl_initialize_funmap (); + + /* Check for LC_CTYPE and use its value to decide the defaults for + 8-bit character input and output. */ + t = getenv ("LC_CTYPE"); + if (t && (strcmp (t, "iso-8859-1") == 0 || strcmp (t, "iso_8859_1") == 0 || + strcmp (t, "ISO-8859-1") == 0)) + { + _rl_meta_flag = 1; + _rl_convert_meta_chars_to_ascii = 0; + _rl_output_meta_chars = 1; + } + + /* Read in the init file. */ + rl_read_init_file ((char *)NULL); + + /* XXX */ + if (_rl_horizontal_scroll_mode && term_xn) + { + screenwidth--; + screenchars -= screenheight; + } + + /* Override the effect of any `set keymap' assignments in the + inputrc file. */ + rl_set_keymap_from_edit_mode (); + + /* Try to bind a common arrow key prefix, if not already bound. */ + bind_arrow_keys (); + + /* If the completion parser's default word break characters haven't + been set yet, then do so now. */ + if (rl_completer_word_break_characters == (char *)NULL) + rl_completer_word_break_characters = rl_basic_word_break_characters; +} + +/* If this system allows us to look at the values of the regular + input editing characters, then bind them to their readline + equivalents, iff the characters are not bound to keymaps. */ +static void +readline_default_bindings () +{ + rltty_set_default_bindings (_rl_keymap); +} + +static void +bind_arrow_keys_internal () +{ + Function *f; + + f = rl_function_of_keyseq ("\033[A", _rl_keymap, (int *)NULL); + if (!f || f == rl_do_lowercase_version) + { + _rl_bind_if_unbound ("\033[A", rl_get_previous_history); + _rl_bind_if_unbound ("\033[B", rl_get_next_history); + _rl_bind_if_unbound ("\033[C", rl_forward); + _rl_bind_if_unbound ("\033[D", rl_backward); + } + + f = rl_function_of_keyseq ("\033OA", _rl_keymap, (int *)NULL); + if (!f || f == rl_do_lowercase_version) + { + _rl_bind_if_unbound ("\033OA", rl_get_previous_history); + _rl_bind_if_unbound ("\033OB", rl_get_next_history); + _rl_bind_if_unbound ("\033OC", rl_forward); + _rl_bind_if_unbound ("\033OD", rl_backward); + } +} + +/* Try and bind the common arrow key prefix after giving termcap and + the inputrc file a chance to bind them and create `real' keymaps + for the arrow key prefix. */ +static void +bind_arrow_keys () +{ + Keymap xkeymap; + + xkeymap = _rl_keymap; + + _rl_keymap = emacs_standard_keymap; + bind_arrow_keys_internal (); + +#if defined (VI_MODE) + _rl_keymap = vi_movement_keymap; + bind_arrow_keys_internal (); +#endif + + _rl_keymap = xkeymap; +} + + +/* **************************************************************** */ +/* */ +/* Numeric Arguments */ +/* */ +/* **************************************************************** */ + +/* Handle C-u style numeric args, as well as M--, and M-digits. */ +static int +rl_digit_loop () +{ + int key, c; + + while (1) + { + rl_message ("(arg: %d) ", rl_arg_sign * rl_numeric_arg); + key = c = rl_read_key (); + + if (_rl_keymap[c].type == ISFUNC && + _rl_keymap[c].function == rl_universal_argument) + { + rl_numeric_arg *= 4; + continue; + } + c = UNMETA (c); + if (digit_p (c)) + { + if (rl_explicit_arg) + rl_numeric_arg = (rl_numeric_arg * 10) + (c - '0'); + else + rl_numeric_arg = (c - '0'); + rl_explicit_arg = 1; + } + else + { + if (c == '-' && !rl_explicit_arg) + { + rl_numeric_arg = 1; + rl_arg_sign = -1; + } + else + { + rl_clear_message (); + return (_rl_dispatch (key, _rl_keymap)); + } + } + } + return 0; +} + +/* Add the current digit to the argument in progress. */ +rl_digit_argument (ignore, key) + int ignore, key; +{ + rl_pending_input = key; + return (rl_digit_loop ()); +} + +/* What to do when you abort reading an argument. */ +rl_discard_argument () +{ + ding (); + rl_clear_message (); + rl_init_argument (); + return 0; +} + +/* Create a default argument. */ +rl_init_argument () +{ + rl_numeric_arg = rl_arg_sign = 1; + rl_explicit_arg = 0; + return 0; +} + +/* C-u, universal argument. Multiply the current argument by 4. + Read a key. If the key has nothing to do with arguments, then + dispatch on it. If the key is the abort character then abort. */ +rl_universal_argument () +{ + rl_numeric_arg *= 4; + return (rl_digit_loop ()); +} + +/* **************************************************************** */ +/* */ +/* Terminal and Termcap */ +/* */ +/* **************************************************************** */ + +static char *term_buffer = (char *)NULL; +static char *term_string_buffer = (char *)NULL; + +static int tcap_initialized = 0; + +/* Non-zero means this terminal can't really do anything. */ +int dumb_term = 0; +/* On Solaris2, sys/types.h #includes sys/reg.h, which #defines PC. + Unfortunately, PC is a global variable used by the termcap library. */ +#undef PC + +#if !defined (__linux__) +/* If this causes problems, add back the `extern'. */ +/*extern*/ char PC, *BC, *UP; +#endif /* __linux__ */ + +/* Some strings to control terminal actions. These are output by tputs (). */ +char *term_goto, *term_clreol, *term_cr, *term_clrpag, *term_backspace; +char *term_pc; + +/* Non-zero if we determine that the terminal can do character insertion. */ +int terminal_can_insert = 0; + +/* How to insert characters. */ +char *term_im, *term_ei, *term_ic, *term_ip, *term_IC; + +/* How to delete characters. */ +char *term_dc, *term_DC; + +#if defined (HACK_TERMCAP_MOTION) +char *term_forward_char; +#endif /* HACK_TERMCAP_MOTION */ + +/* How to go up a line. */ +char *term_up; + +/* A visible bell, if the terminal can be made to flash the screen. */ +char *visible_bell; + +/* Non-zero means that this terminal has a meta key. */ +int term_has_meta; + +/* The string to write to turn on the meta key, if this term has one. */ +char *term_mm; + +/* The string to write to turn off the meta key, if this term has one. */ +char *term_mo; + +/* The key sequences output by the arrow keys, if this terminal has any. */ +char *term_ku, *term_kd, *term_kr, *term_kl; + +/* How to initialize and reset the arrow keys, if this terminal has any. */ +char *term_ks, *term_ke; + +/* Re-initialize the terminal considering that the TERM/TERMCAP variable + has changed. */ +rl_reset_terminal (terminal_name) + char *terminal_name; +{ + init_terminal_io (terminal_name); + return 0; +} + +/* Set readline's idea of the screen size. TTY is a file descriptor open + to the terminal. If IGNORE_ENV is true, we do not pay attention to the + values of $LINES and $COLUMNS. The tests for TERM_STRING_BUFFER being + non-null serve to check whether or not we have initialized termcap. */ +void +_rl_set_screen_size (tty, ignore_env) + int tty, ignore_env; +{ +#if defined (TIOCGWINSZ) + struct winsize window_size; +#endif /* TIOCGWINSZ */ + +#if defined (TIOCGWINSZ) + if (ioctl (tty, TIOCGWINSZ, &window_size) == 0) + { + screenwidth = (int) window_size.ws_col; + screenheight = (int) window_size.ws_row; + } +#endif /* TIOCGWINSZ */ + + /* Environment variable COLUMNS overrides setting of "co" if IGNORE_ENV + is unset. */ + if (screenwidth <= 0) + { + char *sw; + + if (!ignore_env && (sw = getenv ("COLUMNS"))) + screenwidth = atoi (sw); + + if (screenwidth <= 0 && term_string_buffer) + screenwidth = tgetnum ("co"); + } + + /* Environment variable LINES overrides setting of "li" if IGNORE_ENV + is unset. */ + if (screenheight <= 0) + { + char *sh; + + if (!ignore_env && (sh = getenv ("LINES"))) + screenheight = atoi (sh); + + if (screenheight <= 0 && term_string_buffer) + screenheight = tgetnum ("li"); + } + + /* If all else fails, default to 80x24 terminal. */ + if (screenwidth <= 1) + screenwidth = 80; + + if (screenheight <= 0) + screenheight = 24; + +#if defined (SHELL) + /* If we're being compiled as part of bash, set the environment + variables $LINES and $COLUMNS to new values. */ + set_lines_and_columns (screenheight, screenwidth); +#endif + + if (!term_xn) + screenwidth--; + + screenchars = screenwidth * screenheight; +} + +struct _tc_string { + char *tc_var; + char **tc_value; +}; + +/* This should be kept sorted, just in case we decide to change the + search algorithm to something smarter. */ +static struct _tc_string tc_strings[] = +{ + "DC", &term_DC, + "IC", &term_IC, + "ce", &term_clreol, + "cl", &term_clrpag, + "cr", &term_cr, + "dc", &term_dc, + "ei", &term_ei, + "ic", &term_ic, + "im", &term_im, + "kd", &term_kd, + "kl", &term_kl, + "kr", &term_kr, + "ku", &term_ku, + "ks", &term_ks, + "ke", &term_ke, + "le", &term_backspace, + "mm", &term_mm, + "mo", &term_mo, +#if defined (HACK_TERMCAP_MOTION) + "nd", &term_forward_char, +#endif + "pc", &term_pc, + "up", &term_up, + "vb", &visible_bell, +}; + +#define NUM_TC_STRINGS (sizeof (tc_strings) / sizeof (struct _tc_string)) + +/* Read the desired terminal capability strings into BP. The capabilities + are described in the TC_STRINGS table. */ +static void +get_term_capabilities (bp) + char **bp; +{ + register int i; + + for (i = 0; i < NUM_TC_STRINGS; i++) + *(tc_strings[i].tc_value) = tgetstr (tc_strings[i].tc_var, bp); + tcap_initialized = 1; +} + +static int +init_terminal_io (terminal_name) + char *terminal_name; +{ +#if defined (__GO32__) + screenwidth = ScreenCols (); + screenheight = ScreenRows (); + screenchars = screenwidth * screenheight; + term_cr = "\r"; + term_im = term_ei = term_ic = term_IC = (char *)NULL; + term_up = term_dc = term_DC = visible_bell = (char *)NULL; + + /* Does the __GO32__ have a meta key? I don't know. */ + term_has_meta = 0; + term_mm = term_mo = (char *)NULL; + + /* It probably has arrow keys, but I don't know what they are. */ + term_ku = term_kd = term_kr = term_kl = (char *)NULL; + +#if defined (HACK_TERMCAP_MOTION) + term_forward_char = (char *)NULL; +#endif /* HACK_TERMCAP_MOTION */ + terminal_can_insert = term_xn = 0; + return; +#else /* !__GO32__ */ + + char *term, *buffer; + int tty; + Keymap xkeymap; + + term = terminal_name ? terminal_name : getenv ("TERM"); + + if (!term_string_buffer) + term_string_buffer = xmalloc (2048); + + if (!term_buffer) + term_buffer = xmalloc (2048); + + buffer = term_string_buffer; + + term_clrpag = term_cr = term_clreol = (char *)NULL; + + if (!term) + term = "dumb"; + + if (tgetent (term_buffer, term) <= 0) + { + dumb_term = 1; + screenwidth = 79; + screenheight = 24; + screenchars = 79 * 24; + term_cr = "\r"; + term_im = term_ei = term_ic = term_IC = (char *)NULL; + term_up = term_dc = term_DC = visible_bell = (char *)NULL; + term_ku = term_kd = term_kl = term_kr = (char *)NULL; +#if defined (HACK_TERMCAP_MOTION) + term_forward_char = (char *)NULL; +#endif + terminal_can_insert = 0; + return 0; + } + + get_term_capabilities (&buffer); + + /* Set up the variables that the termcap library expects the application + to provide. */ + PC = term_pc ? *term_pc : 0; + BC = term_backspace; + UP = term_up; + + if (!term_cr) + term_cr = "\r"; + + if (rl_instream) + tty = fileno (rl_instream); + else + tty = 0; + + screenwidth = screenheight = 0; + + term_xn = tgetflag ("am") && tgetflag ("xn"); + + _rl_set_screen_size (tty, 0); + + /* "An application program can assume that the terminal can do + character insertion if *any one of* the capabilities `IC', + `im', `ic' or `ip' is provided." But we can't do anything if + only `ip' is provided, so... */ + terminal_can_insert = (term_IC || term_im || term_ic); + + /* Check to see if this terminal has a meta key and clear the capability + variables if there is none. */ + term_has_meta = (tgetflag ("km") || tgetflag ("MT")); + if (!term_has_meta) + { + term_mm = (char *)NULL; + term_mo = (char *)NULL; + } + + /* Attempt to find and bind the arrow keys. Do not override already + bound keys in an overzealous attempt, however. */ + xkeymap = _rl_keymap; + + _rl_keymap = emacs_standard_keymap; + _rl_bind_if_unbound (term_ku, rl_get_previous_history); + _rl_bind_if_unbound (term_kd, rl_get_next_history); + _rl_bind_if_unbound (term_kr, rl_forward); + _rl_bind_if_unbound (term_kl, rl_backward); + +#if defined (VI_MODE) + _rl_keymap = vi_movement_keymap; + _rl_bind_if_unbound (term_ku, rl_get_previous_history); + _rl_bind_if_unbound (term_kd, rl_get_next_history); + _rl_bind_if_unbound (term_kr, rl_forward); + _rl_bind_if_unbound (term_kl, rl_backward); +#endif /* VI_MODE */ + + _rl_keymap = xkeymap; + +#endif /* !__GO32__ */ + return 0; +} + +char * +rl_get_termcap (cap) + char *cap; +{ + register int i; + + if (tcap_initialized == 0) + return ((char *)NULL); + for (i = 0; i < NUM_TC_STRINGS; i++) + { + if (tc_strings[i].tc_var[0] == cap[0] && strcmp (tc_strings[i].tc_var, cap) == 0) + return *(tc_strings[i].tc_value); + } + return ((char *)NULL); +} + +/* A function for the use of tputs () */ +int +_rl_output_character_function (c) + int c; +{ + return putc (c, out_stream); +} + +/* Write COUNT characters from STRING to the output stream. */ +void +_rl_output_some_chars (string, count) + char *string; + int count; +{ + fwrite (string, 1, count, out_stream); +} + +/* Move the cursor back. */ +backspace (count) + int count; +{ + register int i; + +#if !defined (__GO32__) + if (term_backspace) + for (i = 0; i < count; i++) + tputs (term_backspace, 1, _rl_output_character_function); + else +#endif /* !__GO32__ */ + for (i = 0; i < count; i++) + putc ('\b', out_stream); + return 0; +} + +/* Move to the start of the next line. */ +crlf () +{ +#if defined (NEW_TTY_DRIVER) + tputs (term_cr, 1, _rl_output_character_function); +#endif /* NEW_TTY_DRIVER */ + putc ('\n', out_stream); + return 0; +} + +rl_tty_status (count, key) + int count, key; +{ +#if defined (TIOCSTAT) + ioctl (1, TIOCSTAT, (char *)0); + rl_refresh_line (); +#else + ding (); +#endif + return 0; +} + + +/* **************************************************************** */ +/* */ +/* Utility Functions */ +/* */ +/* **************************************************************** */ + +/* Return 0 if C is not a member of the class of characters that belong + in words, or 1 if it is. */ + +int allow_pathname_alphabetic_chars = 0; +char *pathname_alphabetic_chars = "/-_=~.#$"; + +int +alphabetic (c) + int c; +{ + if (pure_alphabetic (c) || (digit_p (c))) + return (1); + + if (allow_pathname_alphabetic_chars) + return (strchr (pathname_alphabetic_chars, c) != NULL); + else + return (0); +} + +/* Ring the terminal bell. */ +int +ding () +{ + if (readline_echoing_p) + { +#if !defined (__GO32__) + switch (_rl_bell_preference) + { + case NO_BELL: + default: + break; + case VISIBLE_BELL: + if (visible_bell) + { + tputs (visible_bell, 1, _rl_output_character_function); + break; + } + /* FALLTHROUGH */ + case AUDIBLE_BELL: + fprintf (stderr, "\007"); + fflush (stderr); + break; + } +#else /* __GO32__ */ + fprintf (stderr, "\007"); + fflush (stderr); +#endif /* __GO32__ */ + return (0); + } + return (-1); +} + +/* How to abort things. */ +rl_abort (count, key) + int count, key; +{ + ding (); + rl_clear_message (); + rl_init_argument (); + rl_pending_input = 0; + + defining_kbd_macro = 0; + while (executing_macro) + pop_executing_macro (); + + rl_last_func = (Function *)NULL; + longjmp (readline_top_level, 1); +} + +/* Return a copy of the string between FROM and TO. + FROM is inclusive, TO is not. */ +char * +rl_copy_text (from, to) + int from, to; +{ + register int length; + char *copy; + + /* Fix it if the caller is confused. */ + if (from > to) + { + int t = from; + from = to; + to = t; + } + + length = to - from; + copy = xmalloc (1 + length); + strncpy (copy, the_line + from, length); + copy[length] = '\0'; + return (copy); +} + +/* Increase the size of RL_LINE_BUFFER until it has enough space to hold + LEN characters. */ +void +rl_extend_line_buffer (len) + int len; +{ + while (len >= rl_line_buffer_len) + { + rl_line_buffer_len += DEFAULT_BUFFER_SIZE; + rl_line_buffer = xrealloc (rl_line_buffer, rl_line_buffer_len); + } + + the_line = rl_line_buffer; +} + + +/* **************************************************************** */ +/* */ +/* Insert and Delete */ +/* */ +/* **************************************************************** */ + +/* Insert a string of text into the line at point. This is the only + way that you should do insertion. rl_insert () calls this + function. */ +rl_insert_text (string) + char *string; +{ + register int i, l = strlen (string); + + if (rl_end + l >= rl_line_buffer_len) + rl_extend_line_buffer (rl_end + l); + + for (i = rl_end; i >= rl_point; i--) + the_line[i + l] = the_line[i]; + strncpy (the_line + rl_point, string, l); + + /* Remember how to undo this if we aren't undoing something. */ + if (!doing_an_undo) + { + /* If possible and desirable, concatenate the undos. */ + if ((l == 1) && + rl_undo_list && + (rl_undo_list->what == UNDO_INSERT) && + (rl_undo_list->end == rl_point) && + (rl_undo_list->end - rl_undo_list->start < 20)) + rl_undo_list->end++; + else + rl_add_undo (UNDO_INSERT, rl_point, rl_point + l, (char *)NULL); + } + rl_point += l; + rl_end += l; + the_line[rl_end] = '\0'; + return l; +} + +/* Delete the string between FROM and TO. FROM is + inclusive, TO is not. */ +rl_delete_text (from, to) + int from, to; +{ + register char *text; + register int diff, i; + + /* Fix it if the caller is confused. */ + if (from > to) + { + int t = from; + from = to; + to = t; + } + + if (to > rl_end) + to = rl_end; + + text = rl_copy_text (from, to); + + /* Some versions of strncpy() can't handle overlapping arguments. */ + diff = to - from; + for (i = from; i < rl_end - diff; i++) + the_line[i] = the_line[i + diff]; + + /* Remember how to undo this delete. */ + if (!doing_an_undo) + rl_add_undo (UNDO_DELETE, from, to, text); + else + free (text); + + rl_end -= diff; + the_line[rl_end] = '\0'; + return (diff); +} + + +/* **************************************************************** */ +/* */ +/* Readline character functions */ +/* */ +/* **************************************************************** */ + +/* This is not a gap editor, just a stupid line input routine. No hair + is involved in writing any of the functions, and none should be. */ + +/* Note that: + + rl_end is the place in the string that we would place '\0'; + i.e., it is always safe to place '\0' there. + + rl_point is the place in the string where the cursor is. Sometimes + this is the same as rl_end. + + Any command that is called interactively receives two arguments. + The first is a count: the numeric arg pased to this command. + The second is the key which invoked this command. +*/ + + +/* **************************************************************** */ +/* */ +/* Movement Commands */ +/* */ +/* **************************************************************** */ + +/* Note that if you `optimize' the display for these functions, you cannot + use said functions in other functions which do not do optimizing display. + I.e., you will have to update the data base for rl_redisplay, and you + might as well let rl_redisplay do that job. */ + +/* Move forward COUNT characters. */ +rl_forward (count, key) + int count, key; +{ + if (count < 0) + rl_backward (-count); + else if (count > 0) + { + int end = rl_point + count; +#if defined (VI_MODE) + int lend = rl_end - (rl_editing_mode == vi_mode); +#else + int lend = rl_end; +#endif + + if (end > lend) + { + rl_point = lend; + ding (); + } + else + rl_point = end; + } + return 0; +} + +/* Move backward COUNT characters. */ +rl_backward (count, key) + int count, key; +{ + if (count < 0) + rl_forward (-count); + else if (count > 0) + { + if (rl_point < count) + { + rl_point = 0; + ding (); + } + else + rl_point -= count; + } + return 0; +} + +/* Move to the beginning of the line. */ +rl_beg_of_line (count, key) + int count, key; +{ + rl_point = 0; + return 0; +} + +/* Move to the end of the line. */ +rl_end_of_line (count, key) + int count, key; +{ + rl_point = rl_end; + return 0; +} + +/* Move forward a word. We do what Emacs does. */ +rl_forward_word (count, key) + int count, key; +{ + int c; + + if (count < 0) + { + rl_backward_word (-count); + return 0; + } + + while (count) + { + if (rl_point == rl_end) + return 0; + + /* If we are not in a word, move forward until we are in one. + Then, move forward until we hit a non-alphabetic character. */ + c = the_line[rl_point]; + if (!alphabetic (c)) + { + while (++rl_point < rl_end) + { + c = the_line[rl_point]; + if (alphabetic (c)) + break; + } + } + if (rl_point == rl_end) + return 0; + while (++rl_point < rl_end) + { + c = the_line[rl_point]; + if (!alphabetic (c)) + break; + } + --count; + } + return 0; +} + +/* Move backward a word. We do what Emacs does. */ +rl_backward_word (count, key) + int count, key; +{ + int c; + + if (count < 0) + { + rl_forward_word (-count); + return 0; + } + + while (count) + { + if (!rl_point) + return 0; + + /* Like rl_forward_word (), except that we look at the characters + just before point. */ + + c = the_line[rl_point - 1]; + if (!alphabetic (c)) + { + while (--rl_point) + { + c = the_line[rl_point - 1]; + if (alphabetic (c)) + break; + } + } + + while (rl_point) + { + c = the_line[rl_point - 1]; + if (!alphabetic (c)) + break; + else + --rl_point; + } + --count; + } + return 0; +} + +/* Clear the current line. Numeric argument to C-l does this. */ +rl_refresh_line () +{ + int curr_line, nleft; + + /* Find out whether or not there might be invisible characters in the + editing buffer. */ + if (rl_display_prompt == rl_prompt) + nleft = _rl_last_c_pos - screenwidth - rl_visible_prompt_length; + else + nleft = _rl_last_c_pos - screenwidth; + + if (nleft > 0) + curr_line = 1 + nleft / screenwidth; + else + curr_line = 0; + + _rl_move_vert (curr_line); + _rl_move_cursor_relative (0, the_line); /* XXX is this right */ + +#if defined (__GO32__) + { + int row, col, width, row_start; + + ScreenGetCursor (&row, &col); + width = ScreenCols (); + row_start = ScreenPrimary + (row * width); + memset (row_start + col, 0, (width - col) * 2); + } +#else /* !__GO32__ */ + if (term_clreol) + tputs (term_clreol, 1, _rl_output_character_function); +#endif /* !__GO32__ */ + + rl_forced_update_display (); + rl_display_fixed = 1; + + return 0; +} + +/* C-l typed to a line without quoting clears the screen, and then reprints + the prompt and the current input line. Given a numeric arg, redraw only + the current line. */ +rl_clear_screen (count, key) + int count, key; +{ + if (rl_explicit_arg) + { + rl_refresh_line (); + return 0; + } + +#if !defined (__GO32__) + if (term_clrpag) + tputs (term_clrpag, 1, _rl_output_character_function); + else +#endif /* !__GO32__ */ + crlf (); + + rl_forced_update_display (); + rl_display_fixed = 1; + + return 0; +} + +rl_arrow_keys (count, c) + int count, c; +{ + int ch; + + ch = rl_read_key (); + + switch (to_upper (ch)) + { + case 'A': + rl_get_previous_history (count); + break; + + case 'B': + rl_get_next_history (count); + break; + + case 'C': + rl_forward (count); + break; + + case 'D': + rl_backward (count); + break; + + default: + ding (); + } + return 0; +} + + +/* **************************************************************** */ +/* */ +/* Text commands */ +/* */ +/* **************************************************************** */ + +/* Insert the character C at the current location, moving point forward. */ +rl_insert (count, c) + int count, c; +{ + register int i; + char *string; + + if (count <= 0) + return 0; + + /* If we can optimize, then do it. But don't let people crash + readline because of extra large arguments. */ + if (count > 1 && count < 1024) + { + string = xmalloc (1 + count); + + for (i = 0; i < count; i++) + string[i] = c; + + string[i] = '\0'; + rl_insert_text (string); + free (string); + + return 0; + } + + if (count > 1024) + { + int decreaser; + char str[1024+1]; + + for (i = 0; i < 1024; i++) + str[i] = c; + + while (count) + { + decreaser = (count > 1024 ? 1024 : count); + str[decreaser] = '\0'; + rl_insert_text (str); + count -= decreaser; + } + + return 0; + } + + /* We are inserting a single character. + If there is pending input, then make a string of all of the + pending characters that are bound to rl_insert, and insert + them all. */ + if (any_typein) + { + int key = 0, t; + + i = 0; + string = xmalloc (ibuffer_len + 1); + string[i++] = c; + + while ((t = rl_get_char (&key)) && + (_rl_keymap[key].type == ISFUNC && + _rl_keymap[key].function == rl_insert)) + string[i++] = key; + + if (t) + rl_unget_char (key); + + string[i] = '\0'; + rl_insert_text (string); + free (string); + } + else + { + /* Inserting a single character. */ + char str[2]; + + str[1] = '\0'; + str[0] = c; + rl_insert_text (str); + } + return 0; +} + +/* Insert the next typed character verbatim. */ +rl_quoted_insert (count, key) + int count, key; +{ + int c; + + c = rl_read_key (); + return (rl_insert (count, c)); +} + +/* Insert a tab character. */ +rl_tab_insert (count, key) + int count, key; +{ + return (rl_insert (count, '\t')); +} + +/* What to do when a NEWLINE is pressed. We accept the whole line. + KEY is the key that invoked this command. I guess it could have + meaning in the future. */ +rl_newline (count, key) + int count, key; +{ + rl_done = 1; + +#if defined (VI_MODE) + _rl_vi_done_inserting (); + _rl_vi_reset_last (); + +#endif /* VI_MODE */ + + if (readline_echoing_p) + _rl_update_final (); + return 0; +} + +rl_clean_up_for_exit () +{ + if (readline_echoing_p) + { + _rl_move_vert (_rl_vis_botlin); + _rl_vis_botlin = 0; + fflush (out_stream); + rl_restart_output (); + } + return 0; +} + +/* What to do for some uppercase characters, like meta characters, + and some characters appearing in emacs_ctlx_keymap. This function + is just a stub, you bind keys to it and the code in _rl_dispatch () + is special cased. */ +rl_do_lowercase_version (ignore1, ignore2) + int ignore1, ignore2; +{ + return 0; +} + +/* Rubout the character behind point. */ +rl_rubout (count, key) + int count, key; +{ + if (count < 0) + { + rl_delete (-count); + return 0; + } + + if (!rl_point) + { + ding (); + return -1; + } + + if (count > 1 || rl_explicit_arg) + { + int orig_point = rl_point; + rl_backward (count); + rl_kill_text (orig_point, rl_point); + } + else + { + int c = the_line[--rl_point]; + rl_delete_text (rl_point, rl_point + 1); + + if (rl_point == rl_end && isprint (c) && _rl_last_c_pos) + { + int l; + l = rl_character_len (c, rl_point); + _rl_erase_at_end_of_line (l); + } + } + return 0; +} + +/* Delete the character under the cursor. Given a numeric argument, + kill that many characters instead. */ +rl_delete (count, invoking_key) + int count, invoking_key; +{ + if (count < 0) + { + return (rl_rubout (-count)); + } + + if (rl_point == rl_end) + { + ding (); + return -1; + } + + if (count > 1 || rl_explicit_arg) + { + int orig_point = rl_point; + rl_forward (count); + rl_kill_text (orig_point, rl_point); + rl_point = orig_point; + return 0; + } + else + return (rl_delete_text (rl_point, rl_point + 1)); + +} + +/* Delete all spaces and tabs around point. */ +rl_delete_horizontal_space (count, ignore) + int count, ignore; +{ + int start = rl_point; + + while (rl_point && whitespace (the_line[rl_point - 1])) + rl_point--; + + start = rl_point; + + while (rl_point < rl_end && whitespace (the_line[rl_point])) + rl_point++; + + if (start != rl_point) + { + rl_delete_text (start, rl_point); + rl_point = start; + } + return 0; +} + + +/* **************************************************************** */ +/* */ +/* Kill commands */ +/* */ +/* **************************************************************** */ + +/* The next two functions mimic unix line editing behaviour, except they + save the deleted text on the kill ring. This is safer than not saving + it, and since we have a ring, nobody should get screwed. */ + +/* This does what C-w does in Unix. We can't prevent people from + using behaviour that they expect. */ +rl_unix_word_rubout (count, key) + int count, key; +{ + if (!rl_point) + ding (); + else + { + int orig_point = rl_point; + if (count <= 0) + count = 1; + + while (count--) + { + while (rl_point && whitespace (the_line[rl_point - 1])) + rl_point--; + + while (rl_point && !whitespace (the_line[rl_point - 1])) + rl_point--; + } + + rl_kill_text (orig_point, rl_point); + } + return 0; +} + +/* Here is C-u doing what Unix does. You don't *have* to use these + key-bindings. We have a choice of killing the entire line, or + killing from where we are to the start of the line. We choose the + latter, because if you are a Unix weenie, then you haven't backspaced + into the line at all, and if you aren't, then you know what you are + doing. */ +rl_unix_line_discard (count, key) + int count, key; +{ + if (!rl_point) + ding (); + else + { + rl_kill_text (rl_point, 0); + rl_point = 0; + } + return 0; +} + + +/* **************************************************************** */ +/* */ +/* Commands For Typos */ +/* */ +/* **************************************************************** */ + +/* Random and interesting things in here. */ + +/* **************************************************************** */ +/* */ +/* Changing Case */ +/* */ +/* **************************************************************** */ + +/* The three kinds of things that we know how to do. */ +#define UpCase 1 +#define DownCase 2 +#define CapCase 3 + +static int rl_change_case (); + +/* Uppercase the word at point. */ +rl_upcase_word (count, key) + int count, key; +{ + return (rl_change_case (count, UpCase)); +} + +/* Lowercase the word at point. */ +rl_downcase_word (count, key) + int count, key; +{ + return (rl_change_case (count, DownCase)); +} + +/* Upcase the first letter, downcase the rest. */ +rl_capitalize_word (count, key) + int count, key; +{ + return (rl_change_case (count, CapCase)); +} + +/* The meaty function. + Change the case of COUNT words, performing OP on them. + OP is one of UpCase, DownCase, or CapCase. + If a negative argument is given, leave point where it started, + otherwise, leave it where it moves to. */ +static int +rl_change_case (count, op) + int count, op; +{ + register int start = rl_point, end; + int state = 0; + + rl_forward_word (count); + end = rl_point; + + if (count < 0) + { + int temp = start; + start = end; + end = temp; + } + + /* We are going to modify some text, so let's prepare to undo it. */ + rl_modifying (start, end); + + for (; start < end; start++) + { + switch (op) + { + case UpCase: + the_line[start] = to_upper (the_line[start]); + break; + + case DownCase: + the_line[start] = to_lower (the_line[start]); + break; + + case CapCase: + if (state == 0) + { + the_line[start] = to_upper (the_line[start]); + state = 1; + } + else + { + the_line[start] = to_lower (the_line[start]); + } + if (!pure_alphabetic (the_line[start])) + state = 0; + break; + + default: + ding (); + return -1; + } + } + rl_point = end; + return 0; +} + +/* **************************************************************** */ +/* */ +/* Transposition */ +/* */ +/* **************************************************************** */ + +/* Transpose the words at point. */ +rl_transpose_words (count, key) + int count, key; +{ + char *word1, *word2; + int w1_beg, w1_end, w2_beg, w2_end; + int orig_point = rl_point; + + if (!count) + return 0; + + /* Find the two words. */ + rl_forward_word (count); + w2_end = rl_point; + rl_backward_word (1); + w2_beg = rl_point; + rl_backward_word (count); + w1_beg = rl_point; + rl_forward_word (1); + w1_end = rl_point; + + /* Do some check to make sure that there really are two words. */ + if ((w1_beg == w2_beg) || (w2_beg < w1_end)) + { + ding (); + rl_point = orig_point; + return -1; + } + + /* Get the text of the words. */ + word1 = rl_copy_text (w1_beg, w1_end); + word2 = rl_copy_text (w2_beg, w2_end); + + /* We are about to do many insertions and deletions. Remember them + as one operation. */ + rl_begin_undo_group (); + + /* Do the stuff at word2 first, so that we don't have to worry + about word1 moving. */ + rl_point = w2_beg; + rl_delete_text (w2_beg, w2_end); + rl_insert_text (word1); + + rl_point = w1_beg; + rl_delete_text (w1_beg, w1_end); + rl_insert_text (word2); + + /* This is exactly correct since the text before this point has not + changed in length. */ + rl_point = w2_end; + + /* I think that does it. */ + rl_end_undo_group (); + free (word1); + free (word2); + + return 0; +} + +/* Transpose the characters at point. If point is at the end of the line, + then transpose the characters before point. */ +rl_transpose_chars (count, key) + int count, key; +{ + char dummy[2]; + + if (!count) + return 0; + + if (!rl_point || rl_end < 2) + { + ding (); + return -1; + } + + rl_begin_undo_group (); + + if (rl_point == rl_end) + { + --rl_point; + count = 1; + } + rl_point--; + + dummy[0] = the_line[rl_point]; + dummy[1] = '\0'; + + rl_delete_text (rl_point, rl_point + 1); + + rl_point += count; + if (rl_point > rl_end) + rl_point = rl_end; + else if (rl_point < 0) + rl_point = 0; + rl_insert_text (dummy); + + rl_end_undo_group (); + return 0; +} + +/* **************************************************************** */ +/* */ +/* Undo, and Undoing */ +/* */ +/* **************************************************************** */ + +/* The current undo list for THE_LINE. */ +UNDO_LIST *rl_undo_list = (UNDO_LIST *)NULL; + +/* Remember how to undo something. Concatenate some undos if that + seems right. */ +void +rl_add_undo (what, start, end, text) + enum undo_code what; + int start, end; + char *text; +{ + UNDO_LIST *temp = (UNDO_LIST *)xmalloc (sizeof (UNDO_LIST)); + temp->what = what; + temp->start = start; + temp->end = end; + temp->text = text; + temp->next = rl_undo_list; + rl_undo_list = temp; +} + +/* Free the existing undo list. */ +void +free_undo_list () +{ + while (rl_undo_list) + { + UNDO_LIST *release = rl_undo_list; + rl_undo_list = rl_undo_list->next; + + if (release->what == UNDO_DELETE) + free (release->text); + + free (release); + } + rl_undo_list = (UNDO_LIST *)NULL; +} + +/* Undo the next thing in the list. Return 0 if there + is nothing to undo, or non-zero if there was. */ +int +rl_do_undo () +{ + UNDO_LIST *release; + int waiting_for_begin = 0; + +undo_thing: + if (!rl_undo_list) + return (0); + + doing_an_undo = 1; + + switch (rl_undo_list->what) { + + /* Undoing deletes means inserting some text. */ + case UNDO_DELETE: + rl_point = rl_undo_list->start; + rl_insert_text (rl_undo_list->text); + free (rl_undo_list->text); + break; + + /* Undoing inserts means deleting some text. */ + case UNDO_INSERT: + rl_delete_text (rl_undo_list->start, rl_undo_list->end); + rl_point = rl_undo_list->start; + break; + + /* Undoing an END means undoing everything 'til we get to + a BEGIN. */ + case UNDO_END: + waiting_for_begin++; + break; + + /* Undoing a BEGIN means that we are done with this group. */ + case UNDO_BEGIN: + if (waiting_for_begin) + waiting_for_begin--; + else + ding (); + break; + } + + doing_an_undo = 0; + + release = rl_undo_list; + rl_undo_list = rl_undo_list->next; + free (release); + + if (waiting_for_begin) + goto undo_thing; + + return (1); +} + +/* Begin a group. Subsequent undos are undone as an atomic operation. */ +int +rl_begin_undo_group () +{ + rl_add_undo (UNDO_BEGIN, 0, 0, 0); + return 0; +} + +/* End an undo group started with rl_begin_undo_group (). */ +int +rl_end_undo_group () +{ + rl_add_undo (UNDO_END, 0, 0, 0); + return 0; +} + +/* Save an undo entry for the text from START to END. */ +rl_modifying (start, end) + int start, end; +{ + if (start > end) + { + int t = start; + start = end; + end = t; + } + + if (start != end) + { + char *temp = rl_copy_text (start, end); + rl_begin_undo_group (); + rl_add_undo (UNDO_DELETE, start, end, temp); + rl_add_undo (UNDO_INSERT, start, end, (char *)NULL); + rl_end_undo_group (); + } + return 0; +} + +/* Revert the current line to its previous state. */ +int +rl_revert_line (count, key) + int count, key; +{ + if (!rl_undo_list) + ding (); + else + { + while (rl_undo_list) + rl_do_undo (); + } + return 0; +} + +/* Do some undoing of things that were done. */ +int +rl_undo_command (count, key) + int count, key; +{ + if (count < 0) + return 0; /* Nothing to do. */ + + while (count) + { + if (rl_do_undo ()) + count--; + else + { + ding (); + break; + } + } + return 0; +} + +/* **************************************************************** */ +/* */ +/* History Utilities */ +/* */ +/* **************************************************************** */ + +/* We already have a history library, and that is what we use to control + the history features of readline. However, this is our local interface + to the history mechanism. */ + +/* While we are editing the history, this is the saved + version of the original line. */ +HIST_ENTRY *saved_line_for_history = (HIST_ENTRY *)NULL; + +/* Set the history pointer back to the last entry in the history. */ +static void +start_using_history () +{ + using_history (); + if (saved_line_for_history) + _rl_free_history_entry (saved_line_for_history); + + saved_line_for_history = (HIST_ENTRY *)NULL; +} + +/* Free the contents (and containing structure) of a HIST_ENTRY. */ +void +_rl_free_history_entry (entry) + HIST_ENTRY *entry; +{ + if (!entry) + return; + if (entry->line) + free (entry->line); + free (entry); +} + +/* Perhaps put back the current line if it has changed. */ +maybe_replace_line () +{ + HIST_ENTRY *temp = current_history (); + + /* If the current line has changed, save the changes. */ + if (temp && ((UNDO_LIST *)(temp->data) != rl_undo_list)) + { + temp = replace_history_entry (where_history (), the_line, rl_undo_list); + free (temp->line); + free (temp); + } + return 0; +} + +/* Put back the saved_line_for_history if there is one. */ +maybe_unsave_line () +{ + if (saved_line_for_history) + { + int line_len; + + line_len = strlen (saved_line_for_history->line); + + if (line_len >= rl_line_buffer_len) + rl_extend_line_buffer (line_len); + + strcpy (the_line, saved_line_for_history->line); + rl_undo_list = (UNDO_LIST *)saved_line_for_history->data; + _rl_free_history_entry (saved_line_for_history); + saved_line_for_history = (HIST_ENTRY *)NULL; + rl_end = rl_point = strlen (the_line); + } + else + ding (); + return 0; +} + +/* Save the current line in saved_line_for_history. */ +maybe_save_line () +{ + if (!saved_line_for_history) + { + saved_line_for_history = (HIST_ENTRY *)xmalloc (sizeof (HIST_ENTRY)); + saved_line_for_history->line = savestring (the_line); + saved_line_for_history->data = (char *)rl_undo_list; + } + return 0; +} + +/* **************************************************************** */ +/* */ +/* History Commands */ +/* */ +/* **************************************************************** */ + +/* Meta-< goes to the start of the history. */ +rl_beginning_of_history (count, key) + int count, key; +{ + return (rl_get_previous_history (1 + where_history ())); +} + +/* Meta-> goes to the end of the history. (The current line). */ +rl_end_of_history (count, key) + int count, key; +{ + maybe_replace_line (); + using_history (); + maybe_unsave_line (); + return 0; +} + +/* Move down to the next history line. */ +rl_get_next_history (count, key) + int count, key; +{ + HIST_ENTRY *temp = (HIST_ENTRY *)NULL; + + if (count < 0) + return (rl_get_previous_history (-count)); + + if (!count) + return 0; + + maybe_replace_line (); + + while (count) + { + temp = next_history (); + if (!temp) + break; + --count; + } + + if (!temp) + maybe_unsave_line (); + else + { + int line_len; + + line_len = strlen (temp->line); + + if (line_len >= rl_line_buffer_len) + rl_extend_line_buffer (line_len); + + strcpy (the_line, temp->line); + rl_undo_list = (UNDO_LIST *)temp->data; + rl_end = rl_point = strlen (the_line); +#if defined (VI_MODE) + if (rl_editing_mode == vi_mode) + rl_point = 0; +#endif /* VI_MODE */ + } + return 0; +} + +/* Get the previous item out of our interactive history, making it the current + line. If there is no previous history, just ding. */ +rl_get_previous_history (count, key) + int count, key; +{ + HIST_ENTRY *old_temp = (HIST_ENTRY *)NULL; + HIST_ENTRY *temp = (HIST_ENTRY *)NULL; + + if (count < 0) + return (rl_get_next_history (-count)); + + if (!count) + return 0; + + /* If we don't have a line saved, then save this one. */ + maybe_save_line (); + + /* If the current line has changed, save the changes. */ + maybe_replace_line (); + + while (count) + { + temp = previous_history (); + if (!temp) + break; + else + old_temp = temp; + --count; + } + + /* If there was a large argument, and we moved back to the start of the + history, that is not an error. So use the last value found. */ + if (!temp && old_temp) + temp = old_temp; + + if (!temp) + ding (); + else + { + int line_len; + + line_len = strlen (temp->line); + + if (line_len >= rl_line_buffer_len) + rl_extend_line_buffer (line_len); + + strcpy (the_line, temp->line); + rl_undo_list = (UNDO_LIST *)temp->data; + rl_end = rl_point = line_len; + +#if defined (VI_MODE) + if (rl_editing_mode == vi_mode) + rl_point = 0; +#endif /* VI_MODE */ + } + return 0; +} + +/* Make C be the next command to be executed. */ +rl_execute_next (c) + int c; +{ + rl_pending_input = c; + return 0; +} + +/* **************************************************************** */ +/* */ +/* The Mark and the Region. */ +/* */ +/* **************************************************************** */ + +/* Set the mark at POSITION. */ +rl_set_mark (position) + int position; +{ + if (position > rl_end) + return -1; + + rl_mark = position; + return 0; +} + +/* Exchange the position of mark and point. */ +rl_exchange_mark_and_point (count, key) + int count, key; +{ + if (rl_mark > rl_end) + rl_mark = -1; + + if (rl_mark == -1) + { + ding (); + return -1; + } + else + { + int temp = rl_point; + + rl_point = rl_mark; + rl_mark = temp; + } + return 0; +} + + +/* **************************************************************** */ +/* */ +/* Killing Mechanism */ +/* */ +/* **************************************************************** */ + +/* What we assume for a max number of kills. */ +#define DEFAULT_MAX_KILLS 10 + +/* The real variable to look at to find out when to flush kills. */ +int rl_max_kills = DEFAULT_MAX_KILLS; + +/* Where to store killed text. */ +char **rl_kill_ring = (char **)NULL; + +/* Where we are in the kill ring. */ +int rl_kill_index = 0; + +/* How many slots we have in the kill ring. */ +int rl_kill_ring_length = 0; + +/* How to say that you only want to save a certain amount + of kill material. */ +rl_set_retained_kills (num) + int num; +{ + return 0; +} + +/* The way to kill something. This appends or prepends to the last + kill, if the last command was a kill command. if FROM is less + than TO, then the text is appended, otherwise prepended. If the + last command was not a kill command, then a new slot is made for + this kill. */ +rl_kill_text (from, to) + int from, to; +{ + int slot; + char *text; + + /* Is there anything to kill? */ + if (from == to) + { + last_command_was_kill++; + return 0; + } + + text = rl_copy_text (from, to); + + /* Delete the copied text from the line. */ + rl_delete_text (from, to); + + /* First, find the slot to work with. */ + if (!last_command_was_kill) + { + /* Get a new slot. */ + if (!rl_kill_ring) + { + /* If we don't have any defined, then make one. */ + rl_kill_ring = (char **) + xmalloc (((rl_kill_ring_length = 1) + 1) * sizeof (char *)); + rl_kill_ring[slot = 0] = (char *)NULL; + } + else + { + /* We have to add a new slot on the end, unless we have + exceeded the max limit for remembering kills. */ + slot = rl_kill_ring_length; + if (slot == rl_max_kills) + { + register int i; + free (rl_kill_ring[0]); + for (i = 0; i < slot; i++) + rl_kill_ring[i] = rl_kill_ring[i + 1]; + } + else + { + slot = rl_kill_ring_length += 1; + rl_kill_ring = (char **)xrealloc (rl_kill_ring, slot * sizeof (char *)); + } + rl_kill_ring[--slot] = (char *)NULL; + } + } + else + slot = rl_kill_ring_length - 1; + + /* If the last command was a kill, prepend or append. */ + if (last_command_was_kill && rl_editing_mode != vi_mode) + { + char *old = rl_kill_ring[slot]; + char *new = xmalloc (1 + strlen (old) + strlen (text)); + + if (from < to) + { + strcpy (new, old); + strcat (new, text); + } + else + { + strcpy (new, text); + strcat (new, old); + } + free (old); + free (text); + rl_kill_ring[slot] = new; + } + else + { + rl_kill_ring[slot] = text; + } + rl_kill_index = slot; + last_command_was_kill++; + return 0; +} + +/* Now REMEMBER! In order to do prepending or appending correctly, kill + commands always make rl_point's original position be the FROM argument, + and rl_point's extent be the TO argument. */ + +/* **************************************************************** */ +/* */ +/* Killing Commands */ +/* */ +/* **************************************************************** */ + +/* Delete the word at point, saving the text in the kill ring. */ +rl_kill_word (count, key) + int count, key; +{ + int orig_point = rl_point; + + if (count < 0) + return (rl_backward_kill_word (-count)); + else + { + rl_forward_word (count); + + if (rl_point != orig_point) + rl_kill_text (orig_point, rl_point); + + rl_point = orig_point; + } + return 0; +} + +/* Rubout the word before point, placing it on the kill ring. */ +rl_backward_kill_word (count, ignore) + int count, ignore; +{ + int orig_point = rl_point; + + if (count < 0) + return (rl_kill_word (-count)); + else + { + rl_backward_word (count); + + if (rl_point != orig_point) + rl_kill_text (orig_point, rl_point); + } + return 0; +} + +/* Kill from here to the end of the line. If DIRECTION is negative, kill + back to the line start instead. */ +rl_kill_line (direction, ignore) + int direction, ignore; +{ + int orig_point = rl_point; + + if (direction < 0) + return (rl_backward_kill_line (1)); + else + { + rl_end_of_line (1, ignore); + if (orig_point != rl_point) + rl_kill_text (orig_point, rl_point); + rl_point = orig_point; + } + return 0; +} + +/* Kill backwards to the start of the line. If DIRECTION is negative, kill + forwards to the line end instead. */ +rl_backward_kill_line (direction, ignore) + int direction, ignore; +{ + int orig_point = rl_point; + + if (direction < 0) + return (rl_kill_line (1)); + else + { + if (!rl_point) + ding (); + else + { + rl_beg_of_line (1, ignore); + rl_kill_text (orig_point, rl_point); + } + } + return 0; +} + +/* Kill the whole line, no matter where point is. */ +rl_kill_full_line (count, ignore) + int count, ignore; +{ + rl_begin_undo_group (); + rl_point = 0; + rl_kill_text (rl_point, rl_end); + rl_end_undo_group (); + return 0; +} + +/* Yank back the last killed text. This ignores arguments. */ +rl_yank (count, ignore) + int count, ignore; +{ + if (!rl_kill_ring) + { + rl_abort (count, ignore); + return -1; + } + + rl_set_mark (rl_point); + rl_insert_text (rl_kill_ring[rl_kill_index]); + return 0; +} + +/* If the last command was yank, or yank_pop, and the text just + before point is identical to the current kill item, then + delete that text from the line, rotate the index down, and + yank back some other text. */ +rl_yank_pop (count, key) + int count, key; +{ + int l; + + if (((rl_last_func != rl_yank_pop) && (rl_last_func != rl_yank)) || + !rl_kill_ring) + { + rl_abort (1, key); + return -1; + } + + l = strlen (rl_kill_ring[rl_kill_index]); + if (((rl_point - l) >= 0) && + (strncmp (the_line + (rl_point - l), + rl_kill_ring[rl_kill_index], l) == 0)) + { + rl_delete_text ((rl_point - l), rl_point); + rl_point -= l; + rl_kill_index--; + if (rl_kill_index < 0) + rl_kill_index = rl_kill_ring_length - 1; + rl_yank (1, 0); + return 0; + } + else + { + rl_abort (1, key); + return -1; + } +} + +/* Yank the COUNTth argument from the previous history line. */ +rl_yank_nth_arg (count, ignore) + int count, ignore; +{ + register HIST_ENTRY *entry = previous_history (); + char *arg; + + if (entry) + next_history (); + else + { + ding (); + return -1; + } + + arg = history_arg_extract (count, count, entry->line); + if (!arg || !*arg) + { + ding (); + return -1; + } + + rl_begin_undo_group (); + +#if defined (VI_MODE) + /* Vi mode always inserts a space before yanking the argument, and it + inserts it right *after* rl_point. */ + if (rl_editing_mode == vi_mode) + { + rl_vi_append_mode (); + rl_insert_text (" "); + } +#endif /* VI_MODE */ + + rl_insert_text (arg); + free (arg); + + rl_end_undo_group (); + return 0; +} + +/* Yank the last argument from the previous history line. This `knows' + how rl_yank_nth_arg treats a count of `$'. With an argument, this + behaves the same as rl_yank_nth_arg. */ +int +rl_yank_last_arg (count, key) + int count, key; +{ + if (rl_explicit_arg) + return (rl_yank_nth_arg (count, key)); + else + return (rl_yank_nth_arg ('$', key)); +} + +/* How to toggle back and forth between editing modes. */ +rl_vi_editing_mode (count, key) + int count, key; +{ +#if defined (VI_MODE) + rl_editing_mode = vi_mode; + rl_vi_insertion_mode (); + return 0; +#endif /* VI_MODE */ +} + +rl_emacs_editing_mode (count, key) + int count, key; +{ + rl_editing_mode = emacs_mode; + _rl_keymap = emacs_standard_keymap; + return 0; +} + + +/* **************************************************************** */ +/* */ +/* USG (System V) Support */ +/* */ +/* **************************************************************** */ + +int +rl_getc (stream) + FILE *stream; +{ + int result; + unsigned char c; + +#if defined (__GO32__) + if (isatty (0)) + return (getkey () & 0x7F); +#endif /* __GO32__ */ + + while (1) + { + result = read (fileno (stream), &c, sizeof (unsigned char)); + + if (result == sizeof (unsigned char)) + return (c); + + /* If zero characters are returned, then the file that we are + reading from is empty! Return EOF in that case. */ + if (result == 0) + return (EOF); + +#if defined (EWOULDBLOCK) + if (errno == EWOULDBLOCK) + { + int flags; + + if ((flags = fcntl (fileno (stream), F_GETFL, 0)) < 0) + return (EOF); + if (flags & O_NDELAY) + { + flags &= ~O_NDELAY; + fcntl (fileno (stream), F_SETFL, flags); + continue; + } + continue; + } +#endif /* EWOULDBLOCK */ + +#if defined (_POSIX_VERSION) && defined (EAGAIN) && defined (O_NONBLOCK) + if (errno == EAGAIN) + { + int flags; + + if ((flags = fcntl (fileno (stream), F_GETFL, 0)) < 0) + return (EOF); + if (flags & O_NONBLOCK) + { + flags &= ~O_NONBLOCK; + fcntl (fileno (stream), F_SETFL, flags); + continue; + } + } +#endif /* _POSIX_VERSION && EAGAIN && O_NONBLOCK */ + +#if !defined (__GO32__) + /* If the error that we received was SIGINT, then try again, + this is simply an interrupted system call to read (). + Otherwise, some error ocurred, also signifying EOF. */ + if (errno != EINTR) + return (EOF); +#endif /* !__GO32__ */ + } +} + +#if !defined (SHELL) +#ifdef savestring +#undef savestring +#endif +/* Backwards compatibilty, now that savestring has been removed from + all `public' readline header files. */ +char * +savestring (s) + char *s; +{ + return ((char *)strcpy (xmalloc (1 + (int)strlen (s)), (s))); +} +#endif + +/* Function equivalents for the macros defined in chartypes.h. */ +#undef uppercase_p +int +uppercase_p (c) + int c; +{ + return (isupper (c)); +} + +#undef lowercase_p +int +lowercase_p (c) + int c; +{ + return (islower (c)); +} + +#undef pure_alphabetic +int +pure_alphabetic (c) + int c; +{ + return (isupper (c) || islower (c)); +} + +#undef digit_p +int +digit_p (c) + int c; +{ + return (isdigit (c)); +} + +#undef to_lower +int +to_lower (c) + int c; +{ + return (isupper (c) ? tolower (c) : c); +} + +#undef to_upper +int +to_upper (c) + int c; +{ + return (islower (c) ? toupper (c) : c); +} + +#undef digit_value +int +digit_value (c) + int c; +{ + return (isdigit (c) ? c - '0' : c); +} + +#if defined (STATIC_MALLOC) + +/* **************************************************************** */ +/* */ +/* xmalloc and xrealloc () */ +/* */ +/* **************************************************************** */ + +static void memory_error_and_abort (); + +static char * +xmalloc (bytes) + int bytes; +{ + char *temp = (char *)malloc (bytes); + + if (!temp) + memory_error_and_abort (); + return (temp); +} + +static char * +xrealloc (pointer, bytes) + char *pointer; + int bytes; +{ + char *temp; + + if (!pointer) + temp = (char *)malloc (bytes); + else + temp = (char *)realloc (pointer, bytes); + + if (!temp) + memory_error_and_abort (); + + return (temp); +} + +static void +memory_error_and_abort () +{ + fprintf (stderr, "readline: Out of virtual memory!\n"); + abort (); +} +#endif /* STATIC_MALLOC */ + + +/* **************************************************************** */ +/* */ +/* Testing Readline */ +/* */ +/* **************************************************************** */ + +#if defined (TEST) + +main () +{ + HIST_ENTRY **history_list (); + char *temp = (char *)NULL; + char *prompt = "readline% "; + int done = 0; + + while (!done) + { + temp = readline (prompt); + + /* Test for EOF. */ + if (!temp) + exit (1); + + /* If there is anything on the line, print it and remember it. */ + if (*temp) + { + fprintf (stderr, "%s\r\n", temp); + add_history (temp); + } + + /* Check for `command' that we handle. */ + if (strcmp (temp, "quit") == 0) + done = 1; + + if (strcmp (temp, "list") == 0) + { + HIST_ENTRY **list = history_list (); + register int i; + if (list) + { + for (i = 0; list[i]; i++) + { + fprintf (stderr, "%d: %s\r\n", i, list[i]->line); + free (list[i]->line); + } + free (list); + } + } + free (temp); + } +} + +#endif /* TEST */ + + +/* + * Local variables: + * compile-command: "gcc -g -traditional -I. -I.. -DTEST -o readline readline.c keymaps.o funmap.o history.o -ltermcap" + * end: + */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/readline.h Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,289 @@ +/* Readline.h -- the names of functions callable from within readline. */ + +/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc. + + This file is part of the GNU Readline Library, a library for + reading lines of text with interactive input and history editing. + + The GNU Readline Library is free software; you can redistribute it + and/or modify it under the terms of the GNU General Public License + as published by the Free Software Foundation; either version 1, or + (at your option) any later version. + + The GNU Readline Library is distributed in the hope that it will be + useful, but WITHOUT ANY WARRANTY; without even the implied warranty + of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + The GNU General Public License is often shipped with GNU software, and + is generally kept in a file called COPYING or LICENSE. If you do not + have a copy of the license, write to the Free Software Foundation, + 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#if !defined (_READLINE_H_) +#define _READLINE_H_ + +#if defined (READLINE_LIBRARY) +# include "keymaps.h" +# include "tilde.h" +#else +# include <readline/keymaps.h> +# include <readline/tilde.h> +#endif + +/* The functions for manipulating the text of the line within readline. +Most of these functions are bound to keys by default. */ +extern int + rl_tilde_expand (), + rl_beg_of_line (), rl_backward (), rl_delete (), rl_end_of_line (), + rl_forward (), ding (), rl_backward (), rl_newline (), rl_kill_line (), + rl_clear_screen (), rl_get_next_history (), rl_get_previous_history (), + rl_quoted_insert (), rl_reverse_search_history (), rl_transpose_chars (), + rl_unix_line_discard (), rl_quoted_insert (), rl_unix_word_rubout (), + rl_yank (), rl_rubout (), rl_backward_word (), rl_kill_word (), + rl_forward_word (), rl_tab_insert (), rl_yank_pop (), rl_yank_nth_arg (), + rl_backward_kill_word (), rl_backward_kill_line (), rl_transpose_words (), + rl_complete (), rl_possible_completions (), rl_insert_completions (), + rl_do_lowercase_version (), rl_kill_full_line (), + rl_digit_argument (), rl_universal_argument (), rl_abort (), + rl_undo_command (), rl_revert_line (), rl_beginning_of_history (), + rl_end_of_history (), rl_forward_search_history (), rl_insert (), + rl_upcase_word (), rl_downcase_word (), rl_capitalize_word (), + rl_restart_output (), rl_re_read_init_file (), rl_dump_functions (), + rl_delete_horizontal_space (), rl_history_search_forward (), + rl_history_search_backward (), rl_tty_status (), rl_yank_last_arg (); + +/* `Public' utility functions. */ +extern int rl_insert_text (), rl_delete_text (), rl_kill_text (); +extern int rl_complete_internal (); +extern int rl_expand_prompt (); +extern int rl_initialize (); +extern int rl_set_signals (), rl_clear_signals (); +extern int rl_init_argument (), rl_digit_argument (); +extern int rl_read_key (), rl_getc (), rl_stuff_char (); +extern int maybe_save_line (), maybe_unsave_line (), maybe_replace_line (); +extern int rl_modifying (); + +extern int rl_begin_undo_group (), rl_end_undo_group (); +extern void rl_add_undo (), free_undo_list (); +extern int rl_do_undo (); + +/* Not available unless readline is compiled -DPAREN_MATCHING. */ +extern int rl_insert_close (); + +/* These are *both* defined even when VI_MODE is not. */ +extern int rl_vi_editing_mode (), rl_emacs_editing_mode (); + +/* Non incremental history searching. */ +extern int + rl_noninc_forward_search (), rl_noninc_reverse_search (), + rl_noninc_forward_search_again (), rl_noninc_reverse_search_again (); + +/* Things for vi mode. Not available unless readline is compiled -DVI_MODE. */ +extern int rl_vi_check (), rl_vi_textmod_command (); +extern int + rl_vi_redo (), rl_vi_tilde_expand (), + rl_vi_movement_mode (), rl_vi_insertion_mode (), rl_vi_arg_digit (), + rl_vi_prev_word (), rl_vi_next_word (), rl_vi_char_search (), + rl_vi_eof_maybe (), rl_vi_append_mode (), rl_vi_put (), + rl_vi_append_eol (), rl_vi_insert_beg (), rl_vi_delete (), rl_vi_comment (), + rl_vi_first_print (), rl_vi_fword (), rl_vi_fWord (), rl_vi_bword (), + rl_vi_bWord (), rl_vi_eword (), rl_vi_eWord (), rl_vi_end_word (), + rl_vi_change_case (), rl_vi_match (), rl_vi_bracktype (), + rl_vi_change_char (), rl_vi_yank_arg (), rl_vi_search (), + rl_vi_search_again (), rl_vi_subst (), rl_vi_overstrike (), + rl_vi_overstrike_delete (), rl_vi_replace(), rl_vi_column (), + rl_vi_delete_to (), rl_vi_change_to (), rl_vi_yank_to (), + rl_vi_complete (), rl_vi_fetch_history (); + +/* Keyboard macro commands. */ +extern int rl_start_kbd_macro (), rl_end_kbd_macro (); +extern int rl_call_last_kbd_macro (); + +extern int rl_arrow_keys(), rl_refresh_line (); + +/* Maintaining the state of undo. We remember individual deletes and inserts + on a chain of things to do. */ + +/* The actions that undo knows how to undo. Notice that UNDO_DELETE means + to insert some text, and UNDO_INSERT means to delete some text. I.e., + the code tells undo what to undo, not how to undo it. */ +enum undo_code { UNDO_DELETE, UNDO_INSERT, UNDO_BEGIN, UNDO_END }; + +/* What an element of THE_UNDO_LIST looks like. */ +typedef struct undo_list { + struct undo_list *next; + int start, end; /* Where the change took place. */ + char *text; /* The text to insert, if undoing a delete. */ + enum undo_code what; /* Delete, Insert, Begin, End. */ +} UNDO_LIST; + +/* The current undo list for RL_LINE_BUFFER. */ +extern UNDO_LIST *rl_undo_list; + +/* The data structure for mapping textual names to code addresses. */ +typedef struct { + char *name; + Function *function; +} FUNMAP; + +extern FUNMAP **funmap; + +/* **************************************************************** */ +/* */ +/* Well Published Variables */ +/* */ +/* **************************************************************** */ + +/* The name of the calling program. You should initialize this to + whatever was in argv[0]. It is used when parsing conditionals. */ +extern char *rl_readline_name; + +/* The line buffer that is in use. */ +extern char *rl_line_buffer; + +/* The location of point, and end. */ +extern int rl_point, rl_end; + +/* The name of the terminal to use. */ +extern char *rl_terminal_name; + +/* The input and output streams. */ +extern FILE *rl_instream, *rl_outstream; + +/* The basic list of characters that signal a break between words for the + completer routine. The initial contents of this variable is what + breaks words in the shell, i.e. "n\"\\'`@$>". */ +extern char *rl_basic_word_break_characters; + +/* The list of characters that signal a break between words for + rl_complete_internal. The default list is the contents of + rl_basic_word_break_characters. */ +extern char *rl_completer_word_break_characters; + +/* List of characters which can be used to quote a substring of the line. + Completion occurs on the entire substring, and within the substring + rl_completer_word_break_characters are treated as any other character, + unless they also appear within this list. */ +extern char *rl_completer_quote_characters; + +/* List of characters that are word break characters, but should be left + in TEXT when it is passed to the completion function. The shell uses + this to help determine what kind of completing to do. */ +extern char *rl_special_prefixes; + +/* Pointer to the generator function for completion_matches (). + NULL means to use filename_entry_function (), the default filename + completer. */ +extern Function *rl_completion_entry_function; + +/* If rl_ignore_some_completions_function is non-NULL it is the address + of a function to call after all of the possible matches have been + generated, but before the actual completion is done to the input line. + The function is called with one argument; a NULL terminated array + of (char *). If your function removes any of the elements, they + must be free()'ed. */ +extern Function *rl_ignore_some_completions_function; + +/* Pointer to alternative function to create matches. + Function is called with TEXT, START, and END. + START and END are indices in RL_LINE_BUFFER saying what the boundaries + of TEXT are. + If this function exists and returns NULL then call the value of + rl_completion_entry_function to try to match, otherwise use the + array of strings returned. */ +extern CPPFunction *rl_attempted_completion_function; + +/* If non-zero, then this is the address of a function to call just + before readline_internal () prints the first prompt. */ +extern Function *rl_startup_hook; + +/* If non-zero, then this is the address of a function to call when + completing on a directory name. The function is called with + the address of a string (the current directory name) as an arg. */ +extern Function *rl_directory_completion_hook; + +/* Backwards compatibility with previous versions of readline. */ +#define rl_symbolic_link_hook rl_directory_completion_hook + +/* The address of a function to call periodically while Readline is + awaiting character input, or NULL, for no event handling. */ +extern Function *rl_event_hook; + +/* Non-zero means that modified history lines are preceded + with an asterisk. */ +extern int rl_show_star; + +/* Non-zero means that the results of the matches are to be treated + as filenames. This is ALWAYS zero on entry, and can only be changed + within a completion entry finder function. */ +extern int rl_filename_completion_desired; + +/* Non-zero means that the results of the matches are to be quoted using + double quotes (or an application-specific quoting mechanism) if the + filename contains any characters in rl_word_break_chars. This is + ALWAYS non-zero on entry, and can only be changed within a completion + entry finder function. */ +extern int rl_filename_quoting_desired; + +/* Non-zero means to suppress normal filename completion after the + user-specified completion function has been called. */ +extern int rl_attempted_completion_over; + +/* **************************************************************** */ +/* */ +/* Well Published Functions */ +/* */ +/* **************************************************************** */ + +/* Read a line of input. Prompt with PROMPT. A NULL PROMPT means none. */ +extern char *readline (); + +/* These functions are from complete.c. */ +/* Return an array of strings which are the result of repeatadly calling + FUNC with TEXT. */ +extern char **completion_matches (); +extern char *username_completion_function (); +extern char *filename_completion_function (); + +/* These functions are from bind.c. */ +/* rl_add_defun (char *name, Function *function, int key) + Add NAME to the list of named functions. Make FUNCTION + be the function that gets called. + If KEY is not -1, then bind it. */ +extern int rl_add_defun (); +extern int rl_bind_key (), rl_bind_key_in_map (); +extern int rl_unbind_key (), rl_unbind_key_in_map (); +extern int rl_set_key (); +extern int rl_macro_bind (), rl_generic_bind (), rl_variable_bind (); +extern int rl_translate_keyseq (); +extern Function *rl_named_function (), *rl_function_of_keyseq (); +extern int rl_parse_and_bind (); +extern Keymap rl_get_keymap (), rl_get_keymap_by_name (); +extern void rl_set_keymap (); +extern char **rl_invoking_keyseqs (), **rl_invoking_keyseqs_in_map (); +extern void rl_function_dumper (); +extern int rl_read_init_file (); + +/* Functions in funmap.c */ +extern void rl_list_funmap_names (); +extern void rl_initialize_funmap (); + +/* Functions in display.c */ +extern void rl_redisplay (); +extern int rl_message (), rl_clear_message (); +extern int rl_reset_line_state (); +extern int rl_character_len (); +extern int rl_show_char (); +extern int crlf (), rl_on_new_line (); +extern int rl_forced_update_display (); + +/* Definitions available for use by readline clients. */ +#define RL_PROMPT_START_IGNORE '\001' +#define RL_PROMPT_END_IGNORE '\002' + +#if !defined (savestring) +extern char *savestring (); /* XXX backwards compatibility */ +#endif + +#endif /* _READLINE_H_ */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/rlconf.h Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,57 @@ +/* rlconf.h -- readline configuration definitions */ + +/* Copyright (C) 1994 Free Software Foundation, Inc. + + This file contains the Readline Library (the Library), a set of + routines for providing Emacs style line input to programs that ask + for it. + + The Library is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 1, or (at your option) + any later version. + + The Library is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + The GNU General Public License is often shipped with GNU software, and + is generally kept in a file called COPYING or LICENSE. If you do not + have a copy of the license, write to the Free Software Foundation, + 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#if !defined (_RLCONF_H_) +#define _RLCONF_H_ + +/* Define this if you want the vi-mode editing available. */ +#define VI_MODE + +/* Define this to get an indication of file type when listing completions. */ +#define VISIBLE_STATS + +/* If defined, readline shows opening parens and braces when closing + paren or brace entered. */ +/* #define PAREN_MATCHING */ + +/* This definition is needed by readline.c, rltty.c, and signals.c. */ +/* If on, then readline handles signals in a way that doesn't screw. */ +#define HANDLE_SIGNALS + +/* Ugly but working hack for binding prefix meta. */ +#define PREFIX_META_HACK + +/* The final, last-ditch effort file name for an init file. */ +#define DEFAULT_INPUTRC "~/.inputrc" + +/* If defined, expand tabs to spaces. */ +#define DISPLAY_TABS + +/* If defined, use the terminal escape sequence to move the cursor forward + over a character when updating the line rather than rewriting it. */ +/* #define HACK_TERMCAP_MOTION */ + +/* The string inserted by the vi-mode `insert comment' command. */ +#define VI_COMMENT_BEGIN_DEFAULT "#" + +#endif /* _RLCONF_H_ */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/rldefs.h Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,212 @@ +/* rldefs.h -- an attempt to isolate some of the system-specific defines + for readline. This should be included after any files that define + system-specific constants like _POSIX_VERSION or USG. */ + +/* Copyright (C) 1987,1989 Free Software Foundation, Inc. + + This file contains the Readline Library (the Library), a set of + routines for providing Emacs style line input to programs that ask + for it. + + The Library is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 1, or (at your option) + any later version. + + The Library is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + The GNU General Public License is often shipped with GNU software, and + is generally kept in a file called COPYING or LICENSE. If you do not + have a copy of the license, write to the Free Software Foundation, + 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#if !defined (_RLDEFS_H) +#define _RLDEFS_H + +#if defined (HAVE_CONFIG_H) +# include "config.h" +#endif + +#if !defined (PRAGMA_ALLOCA) +# include "memalloc.h" +#endif + +#define NEW_TTY_DRIVER +#define HAVE_BSD_SIGNALS +/* #define USE_XON_XOFF */ + +#if defined (__linux__) || defined (HAVE_TERMCAP_H) +# include <termcap.h> +#endif /* __linux__ || HAVE_TERMCAP_H */ + +/* Some USG machines have BSD signal handling (sigblock, sigsetmask, etc.) */ +#if defined (USG) && !defined (hpux) +# undef HAVE_BSD_SIGNALS +#endif + +/* System V machines use termio. */ +#if !defined (_POSIX_VERSION) +# if defined (USG) || defined (hpux) || defined (Xenix) || defined (sgi) || \ + defined (DGUX) || defined (HAVE_TERMIO_H) +# undef NEW_TTY_DRIVER +# define TERMIO_TTY_DRIVER +# include <termio.h> +# if !defined (TCOON) +# define TCOON 1 +# endif +# endif /* USG || hpux || Xenix || sgi || DUGX || HAVE_TERMIO_H */ +#endif /* !_POSIX_VERSION */ + +/* Posix systems use termios and the Posix signal functions. */ +#if defined (_POSIX_VERSION) +# if !defined (TERMIOS_MISSING) +# undef NEW_TTY_DRIVER +# define TERMIOS_TTY_DRIVER +# include <termios.h> +# endif /* !TERMIOS_MISSING */ +# define HAVE_POSIX_SIGNALS +# if !defined (O_NDELAY) +# define O_NDELAY O_NONBLOCK /* Posix-style non-blocking i/o */ +# endif /* O_NDELAY */ +#endif /* _POSIX_VERSION */ + +/* System V.3 machines have the old 4.1 BSD `reliable' signal interface. */ +#if !defined (HAVE_BSD_SIGNALS) && !defined (HAVE_POSIX_SIGNALS) +# if defined (USGr3) && !defined (XENIX_22) +# if !defined (HAVE_USG_SIGHOLD) +# define HAVE_USG_SIGHOLD +# endif /* !HAVE_USG_SIGHOLD */ +# endif /* USGr3 && !XENIX_22 */ +#endif /* !HAVE_BSD_SIGNALS && !HAVE_POSIX_SIGNALS */ + +/* Other (BSD) machines use sgtty. */ +#if defined (NEW_TTY_DRIVER) +# include <sgtty.h> +#endif + +#if !defined (SHELL) && (defined (_POSIX_VERSION) || defined (USGr3)) +# if !defined (HAVE_DIRENT_H) +# define HAVE_DIRENT_H +# endif /* !HAVE_DIRENT_H */ +#endif /* !SHELL && (_POSIX_VERSION || USGr3) */ + +#if defined (HAVE_DIRENT_H) +# include <dirent.h> +# define D_NAMLEN(d) strlen ((d)->d_name) +#else /* !HAVE_DIRENT_H */ +# define D_NAMLEN(d) ((d)->d_namlen) +# if defined (USG) +# if defined (Xenix) +# include <sys/ndir.h> +# else /* !Xenix (but USG...) */ +# include "ndir.h" +# endif /* !Xenix */ +# else /* !USG */ +# include <sys/dir.h> +# endif /* !USG */ +# if !defined (dirent) +# define dirent direct +# endif /* !dirent */ +#endif /* !HAVE_DIRENT_H */ + +#if defined (USG) && defined (TIOCGWINSZ) && !defined (Linux) +# if defined (HAVE_SYS_STREAM_H) +# include <sys/stream.h> +# endif /* HAVE_SYS_STREAM_H */ +# if defined (HAVE_SYS_PTEM_H) +# include <sys/ptem.h> +# endif /* HAVE_SYS_PTEM_H */ +# if defined (HAVE_SYS_PTE_H) +# include <sys/pte.h> +# endif /* HAVE_SYS_PTE_H */ +#endif /* USG && TIOCGWINSZ && !Linux */ + +/* Posix macro to check file in statbuf for directory-ness. + This requires that <sys/stat.h> be included before this test. */ +#if defined (S_IFDIR) && !defined (S_ISDIR) +# define S_ISDIR(m) (((m)&S_IFMT) == S_IFDIR) +#endif + +/* Decide which flavor of the header file describing the C library + string functions to include and include it. */ + +#if defined (USG) || defined (NeXT) +# if !defined (HAVE_STRING_H) +# define HAVE_STRING_H +# endif /* !HAVE_STRING_H */ +#endif /* USG || NeXT */ + +#if defined (HAVE_STRING_H) +# include <string.h> +#else /* !HAVE_STRING_H */ +# include <strings.h> +#endif /* !HAVE_STRING_H */ + +#if !defined (strchr) && !defined (__STDC__) +extern char *strchr (), *strrchr (); +#endif /* !strchr && !__STDC__ */ + +#if defined (HAVE_VARARGS_H) +# include <varargs.h> +#endif /* HAVE_VARARGS_H */ + +/* This is needed to include support for TIOCGWINSZ and window resizing. */ +#if defined (OSF1) || defined (BSD386) || defined (NetBSD) || \ + defined (__BSD_4_4__) || defined (FreeBSD) || defined (_386BSD) || \ + defined (AIX) +# define GWINSZ_IN_SYS_IOCTL +#endif + +/* Define _POSIX_VDISABLE if we are not using the `new' tty driver and + it is not already defined. It is used both to determine if a + special character is disabled and to disable certain special + characters. Posix systems should set to 0, USG systems to -1. */ +#if !defined (NEW_TTY_DRIVER) && !defined (_POSIX_VDISABLE) +# if defined (_SVR4_VDISABLE) +# define _POSIX_VDISABLE _SVR4_VDISABLE +# else +# if defined (_POSIX_VERSION) +# define _POSIX_VDISABLE 0 +# else /* !_POSIX_VERSION */ +# define _POSIX_VDISABLE -1 +# endif /* !_POSIX_VERSION */ +# endif /* !_SVR4_VDISABLE */ +#endif /* !NEW_TTY_DRIVER && !_POSIX_VDISABLE */ + + +#if !defined (emacs_mode) +# define no_mode -1 +# define vi_mode 0 +# define emacs_mode 1 +#endif + +/* If you cast map[key].function to type (Keymap) on a Cray, + the compiler takes the value of map[key].function and + divides it by 4 to convert between pointer types (pointers + to functions and pointers to structs are different sizes). + This is not what is wanted. */ +#if defined (CRAY) +# define FUNCTION_TO_KEYMAP(map, key) (Keymap)((int)map[key].function) +# define KEYMAP_TO_FUNCTION(data) (Function *)((int)(data)) +#else +# define FUNCTION_TO_KEYMAP(map, key) (Keymap)(map[key].function) +# define KEYMAP_TO_FUNCTION(data) (Function *)(data) +#endif + +#ifndef savestring +extern char *xmalloc (); +#define savestring(x) strcpy (xmalloc (1 + strlen (x)), (x)) +#endif + +/* Possible values for _rl_bell_preference. */ +#define NO_BELL 0 +#define AUDIBLE_BELL 1 +#define VISIBLE_BELL 2 + +/* CONFIGURATION SECTION */ +#include "rlconf.h" + +#endif /* !_RLDEFS_H */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/rltty.c Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,705 @@ +/* rltty.c -- functions to prepare and restore the terminal for readline's + use. */ + +/* Copyright (C) 1992 Free Software Foundation, Inc. + + This file is part of the GNU Readline Library, a library for + reading lines of text with interactive input and history editing. + + The GNU Readline Library is free software; you can redistribute it + and/or modify it under the terms of the GNU General Public License + as published by the Free Software Foundation; either version 1, or + (at your option) any later version. + + The GNU Readline Library is distributed in the hope that it will be + useful, but WITHOUT ANY WARRANTY; without even the implied warranty + of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + The GNU General Public License is often shipped with GNU software, and + is generally kept in a file called COPYING or LICENSE. If you do not + have a copy of the license, write to the Free Software Foundation, + 675 Mass Ave, Cambridge, MA 02139, USA. */ +#define READLINE_LIBRARY + +#if defined (HAVE_CONFIG_H) +# include "config.h" +#endif + +#include <sys/types.h> +#include <signal.h> +#include <errno.h> +#include <stdio.h> + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif /* HAVE_UNISTD_H */ + +#include "rldefs.h" +#include "readline.h" + +#if !defined (errno) +extern int errno; +#endif /* !errno */ + +extern int readline_echoing_p; +extern int _rl_eof_char; + +#if defined (__GO32__) +# include <sys/pc.h> +# undef HANDLE_SIGNALS +#endif /* __GO32__ */ + +/* **************************************************************** */ +/* */ +/* Signal Management */ +/* */ +/* **************************************************************** */ + +#if defined (HAVE_POSIX_SIGNALS) +static sigset_t sigint_set, sigint_oset; +#else /* !HAVE_POSIX_SIGNALS */ +# if defined (HAVE_BSD_SIGNALS) +static int sigint_oldmask; +# endif /* HAVE_BSD_SIGNALS */ +#endif /* !HAVE_POSIX_SIGNALS */ + +static int sigint_blocked = 0; + +/* Cause SIGINT to not be delivered until the corresponding call to + release_sigint(). */ +static void +block_sigint () +{ + if (sigint_blocked) + return; + +#if defined (HAVE_POSIX_SIGNALS) + sigemptyset (&sigint_set); + sigemptyset (&sigint_oset); + sigaddset (&sigint_set, SIGINT); + sigprocmask (SIG_BLOCK, &sigint_set, &sigint_oset); +#else /* !HAVE_POSIX_SIGNALS */ +# if defined (HAVE_BSD_SIGNALS) + sigint_oldmask = sigblock (sigmask (SIGINT)); +# else /* !HAVE_BSD_SIGNALS */ +# if defined (HAVE_USG_SIGHOLD) + sighold (SIGINT); +# endif /* HAVE_USG_SIGHOLD */ +# endif /* !HAVE_BSD_SIGNALS */ +#endif /* !HAVE_POSIX_SIGNALS */ + sigint_blocked = 1; +} + +/* Allow SIGINT to be delivered. */ +static void +release_sigint () +{ + if (!sigint_blocked) + return; + +#if defined (HAVE_POSIX_SIGNALS) + sigprocmask (SIG_SETMASK, &sigint_oset, (sigset_t *)NULL); +#else +# if defined (HAVE_BSD_SIGNALS) + sigsetmask (sigint_oldmask); +# else /* !HAVE_BSD_SIGNALS */ +# if defined (HAVE_USG_SIGHOLD) + sigrelse (SIGINT); +# endif /* HAVE_USG_SIGHOLD */ +# endif /* !HAVE_BSD_SIGNALS */ +#endif /* !HAVE_POSIX_SIGNALS */ + + sigint_blocked = 0; +} + +/* **************************************************************** */ +/* */ +/* Controlling the Meta Key and Keypad */ +/* */ +/* **************************************************************** */ + +extern int term_has_meta; +extern char *term_mm; +extern char *term_mo; + +extern char *term_ks; +extern char *term_ke; + +static int +outchar (c) + int c; +{ + return putc (c, rl_outstream); +} + +/* Turn on/off the meta key depending on ON. */ +static void +control_meta_key (on) + int on; +{ + if (term_has_meta) + { + if (on && term_mm) + tputs (term_mm, 1, outchar); + else if (!on && term_mo) + tputs (term_mo, 1, outchar); + } +} + +#if 0 +static void +control_keypad (on) + int on; +{ + if (on && term_ks) + tputs (term_ks, 1, outchar); + else if (!on && term_ke) + tputs (term_ke, 1, outchar); +} +#endif + +/* **************************************************************** */ +/* */ +/* Saving and Restoring the TTY */ +/* */ +/* **************************************************************** */ + +/* Non-zero means that the terminal is in a prepped state. */ +static int terminal_prepped = 0; + +/* If non-zero, means that this process has called tcflow(fd, TCOOFF) + and output is suspended. */ +#if defined (__ksr1__) +static int ksrflow = 0; +#endif +#if defined (NEW_TTY_DRIVER) + +/* Values for the `flags' field of a struct bsdtty. This tells which + elements of the struct bsdtty have been fetched from the system and + are valid. */ +#define SGTTY_SET 0x01 +#define LFLAG_SET 0x02 +#define TCHARS_SET 0x04 +#define LTCHARS_SET 0x08 + +struct bsdtty { + struct sgttyb sgttyb; /* Basic BSD tty driver information. */ + int lflag; /* Local mode flags, like LPASS8. */ +#if defined (TIOCGETC) + struct tchars tchars; /* Terminal special characters, including ^S and ^Q. */ +#endif +#if defined (TIOCGLTC) + struct ltchars ltchars; /* 4.2 BSD editing characters */ +#endif + int flags; /* Bitmap saying which parts of the struct are valid. */ +}; + +#define TIOTYPE struct bsdtty + +static TIOTYPE otio; + +static int +get_tty_settings (tty, tiop) + int tty; + TIOTYPE *tiop; +{ +#if !defined (SHELL) && defined (TIOCGWINSZ) + struct winsize w; + + if (ioctl (tty, TIOCGWINSZ, &w) == 0) + (void) ioctl (tty, TIOCSWINSZ, &w); +#endif + + tiop->flags = tiop->lflag = 0; + + ioctl (tty, TIOCGETP, &(tiop->sgttyb)); + tiop->flags |= SGTTY_SET; + +#if defined (TIOCLGET) + ioctl (tty, TIOCLGET, &(tiop->lflag)); + tiop->flags |= LFLAG_SET; +#endif + +#if defined (TIOCGETC) + ioctl (tty, TIOCGETC, &(tiop->tchars)); + tiop->flags |= TCHARS_SET; +#endif + +#if defined (TIOCGLTC) + ioctl (tty, TIOCGLTC, &(tiop->ltchars)); + tiop->flags |= LTCHARS_SET; +#endif + + return 0; +} + +set_tty_settings (tty, tiop) + int tty; + TIOTYPE *tiop; +{ + if (tiop->flags & SGTTY_SET) + { + ioctl (tty, TIOCSETN, &(tiop->sgttyb)); + tiop->flags &= ~SGTTY_SET; + } + readline_echoing_p = 1; + +#if defined (TIOCLSET) + if (tiop->flags & LFLAG_SET) + { + ioctl (tty, TIOCLSET, &(tiop->lflag)); + tiop->flags &= ~LFLAG_SET; + } +#endif + +#if defined (TIOCSETC) + if (tiop->flags & TCHARS_SET) + { + ioctl (tty, TIOCSETC, &(tiop->tchars)); + tiop->flags &= ~TCHARS_SET; + } +#endif + +#if defined (TIOCSLTC) + if (tiop->flags & LTCHARS_SET) + { + ioctl (tty, TIOCSLTC, &(tiop->ltchars)); + tiop->flags &= ~LTCHARS_SET; + } +#endif + + return 0; +} + +static void +prepare_terminal_settings (meta_flag, otio, tiop) + int meta_flag; + TIOTYPE otio, *tiop; +{ +#if !defined (__GO32__) + readline_echoing_p = (otio.sgttyb.sg_flags & ECHO); + + /* Copy the original settings to the structure we're going to use for + our settings. */ + tiop->sgttyb = otio.sgttyb; + tiop->lflag = otio.lflag; +#if defined (TIOCGETC) + tiop->tchars = otio.tchars; +#endif +#if defined (TIOCGLTC) + tiop->ltchars = otio.ltchars; +#endif + tiop->flags = otio.flags; + + /* First, the basic settings to put us into character-at-a-time, no-echo + input mode. */ + tiop->sgttyb.sg_flags &= ~(ECHO | CRMOD); + tiop->sgttyb.sg_flags |= CBREAK; + + /* If this terminal doesn't care how the 8th bit is used, then we can + use it for the meta-key. If only one of even or odd parity is + specified, then the terminal is using parity, and we cannot. */ +#if !defined (ANYP) +# define ANYP (EVENP | ODDP) +#endif + if (((otio.sgttyb.sg_flags & ANYP) == ANYP) || + ((otio.sgttyb.sg_flags & ANYP) == 0)) + { + tiop->sgttyb.sg_flags |= ANYP; + + /* Hack on local mode flags if we can. */ +#if defined (TIOCLGET) +# if defined (LPASS8) + tiop->lflag |= LPASS8; +# endif /* LPASS8 */ +#endif /* TIOCLGET */ + } + +#if defined (TIOCGETC) +# if defined (USE_XON_XOFF) + /* Get rid of terminal output start and stop characters. */ + tiop->tchars.t_stopc = -1; /* C-s */ + tiop->tchars.t_startc = -1; /* C-q */ + + /* If there is an XON character, bind it to restart the output. */ + if (otio.tchars.t_startc != -1) + rl_bind_key (otio.tchars.t_startc, rl_restart_output); +# endif /* USE_XON_XOFF */ + + /* If there is an EOF char, bind _rl_eof_char to it. */ + if (otio.tchars.t_eofc != -1) + _rl_eof_char = otio.tchars.t_eofc; + +# if defined (NO_KILL_INTR) + /* Get rid of terminal-generated SIGQUIT and SIGINT. */ + tiop->tchars.t_quitc = -1; /* C-\ */ + tiop->tchars.t_intrc = -1; /* C-c */ +# endif /* NO_KILL_INTR */ +#endif /* TIOCGETC */ + +#if defined (TIOCGLTC) + /* Make the interrupt keys go away. Just enough to make people happy. */ + tiop->ltchars.t_dsuspc = -1; /* C-y */ + tiop->ltchars.t_lnextc = -1; /* C-v */ +#endif /* TIOCGLTC */ +#endif /* !__GO32__ */ +} + +#else /* !defined (NEW_TTY_DRIVER) */ + +#if !defined (VMIN) +# define VMIN VEOF +#endif + +#if !defined (VTIME) +# define VTIME VEOL +#endif + +#if defined (TERMIOS_TTY_DRIVER) +# define TIOTYPE struct termios +# define DRAIN_OUTPUT(fd) tcdrain (fd) +# define GETATTR(tty, tiop) (tcgetattr (tty, tiop)) +# define SETATTR(tty, tiop) (tcsetattr (tty, TCSANOW, tiop)) +#else +# define TIOTYPE struct termio +# define DRAIN_OUTPUT(fd) +# define GETATTR(tty, tiop) (ioctl (tty, TCGETA, tiop)) +# define SETATTR(tty, tiop) (ioctl (tty, TCSETA, tiop)) +#endif /* !TERMIOS_TTY_DRIVER */ + +static TIOTYPE otio; + +#if defined (FLUSHO) +# define OUTPUT_BEING_FLUSHED(tp) (tp->c_lflag & FLUSHO) +#else +# define OUTPUT_BEING_FLUSHED(tp) 0 +#endif + +static int +get_tty_settings (tty, tiop) + int tty; + TIOTYPE *tiop; +{ + int ioctl_ret; +#if !defined (SHELL) && defined (TIOCGWINSZ) + struct winsize w; + + if (ioctl (tty, TIOCGWINSZ, &w) == 0) + (void) ioctl (tty, TIOCSWINSZ, &w); +#endif + + /* Keep looping if output is being flushed after a ^O (or whatever + the flush character is). */ + while ((ioctl_ret = GETATTR (tty, tiop)) < 0 || OUTPUT_BEING_FLUSHED (tiop)) + { + if (ioctl_ret < 0 && errno != EINTR) + return -1; + if (OUTPUT_BEING_FLUSHED (tiop)) + continue; + errno = 0; + } + return 0; +} + +static int +set_tty_settings (tty, tiop) + int tty; + TIOTYPE *tiop; +{ + while (SETATTR (tty, tiop) < 0) + { + if (errno != EINTR) + return -1; + errno = 0; + } + +#if 0 + +#if defined (TERMIOS_TTY_DRIVER) +# if defined (__ksr1__) + if (ksrflow) + { + ksrflow = 0; + tcflow (tty, TCOON); + } +# else /* !ksr1 */ + tcflow (tty, TCOON); /* Simulate a ^Q. */ +# endif /* !ksr1 */ +#else + ioctl (tty, TCXONC, 1); /* Simulate a ^Q. */ +#endif /* !TERMIOS_TTY_DRIVER */ + +#endif + + return 0; +} + +static void +prepare_terminal_settings (meta_flag, otio, tiop) + int meta_flag; + TIOTYPE otio, *tiop; +{ + readline_echoing_p = (otio.c_lflag & ECHO); + + tiop->c_lflag &= ~(ICANON | ECHO); + + if ((unsigned char) otio.c_cc[VEOF] != (unsigned char) _POSIX_VDISABLE) + _rl_eof_char = otio.c_cc[VEOF]; + +#if defined (USE_XON_XOFF) +#if defined (IXANY) + tiop->c_iflag &= ~(IXON | IXOFF | IXANY); +#else + /* `strict' Posix systems do not define IXANY. */ + tiop->c_iflag &= ~(IXON | IXOFF); +#endif /* IXANY */ +#endif /* USE_XON_XOFF */ + + /* Only turn this off if we are using all 8 bits. */ + if (((tiop->c_cflag & CSIZE) == CS8) || meta_flag) + tiop->c_iflag &= ~(ISTRIP | INPCK); + + /* Make sure we differentiate between CR and NL on input. */ + tiop->c_iflag &= ~(ICRNL | INLCR); + +#if !defined (HANDLE_SIGNALS) + tiop->c_lflag &= ~ISIG; +#else + tiop->c_lflag |= ISIG; +#endif + + tiop->c_cc[VMIN] = 1; + tiop->c_cc[VTIME] = 0; + +#if defined (FLUSHO) + if (OUTPUT_BEING_FLUSHED (tiop)) + { + tiop->c_lflag &= ~FLUSHO; + otio.c_lflag &= ~FLUSHO; + } +#endif + + /* Turn off characters that we need on Posix systems with job control, + just to be sure. This includes ^Y and ^V. This should not really + be necessary. */ +#if defined (TERMIOS_TTY_DRIVER) && defined (_POSIX_VDISABLE) + +#if defined (VLNEXT) + tiop->c_cc[VLNEXT] = _POSIX_VDISABLE; +#endif + +#if defined (VDSUSP) + tiop->c_cc[VDSUSP] = _POSIX_VDISABLE; +#endif + +#endif /* TERMIOS_TTY_DRIVER && _POSIX_VDISABLE */ +} +#endif /* NEW_TTY_DRIVER */ + +/* Put the terminal in CBREAK mode so that we can detect key presses. */ +void +rl_prep_terminal (meta_flag) + int meta_flag; +{ +#if !defined (__GO32__) + int tty = fileno (rl_instream); + TIOTYPE tio; + + if (terminal_prepped) + return; + + /* Try to keep this function from being INTerrupted. */ + block_sigint (); + + if (get_tty_settings (tty, &tio) < 0) + { + release_sigint (); + return; + } + + otio = tio; + + prepare_terminal_settings (meta_flag, otio, &tio); + + if (set_tty_settings (tty, &tio) < 0) + { + release_sigint (); + return; + } + + control_meta_key (1); +#if 0 + control_keypad (1); +#endif + fflush (rl_outstream); + terminal_prepped = 1; + + release_sigint (); +#endif /* !__GO32__ */ +} + +/* Restore the terminal's normal settings and modes. */ +void +rl_deprep_terminal () +{ +#if !defined (__GO32__) + int tty = fileno (rl_instream); + + if (!terminal_prepped) + return; + + /* Try to keep this function from being INTerrupted. */ + block_sigint (); + + control_meta_key (0); +#if 0 + control_keypad (0); +#endif + fflush (rl_outstream); + + if (set_tty_settings (tty, &otio) < 0) + { + release_sigint (); + return; + } + + terminal_prepped = 0; + + release_sigint (); +#endif /* !__GO32__ */ +} + +/* **************************************************************** */ +/* */ +/* Bogus Flow Control */ +/* */ +/* **************************************************************** */ + +rl_restart_output (count, key) + int count, key; +{ + int fildes = fileno (rl_outstream); +#if defined (TIOCSTART) +#if defined (apollo) + ioctl (&fildes, TIOCSTART, 0); +#else + ioctl (fildes, TIOCSTART, 0); +#endif /* apollo */ + +#else /* !TIOCSTART */ +# if defined (TERMIOS_TTY_DRIVER) +# if defined (__ksr1__) + if (ksrflow) + { + ksrflow = 0; + tcflow (fildes, TCOON); + } +# else /* !ksr1 */ + tcflow (fildes, TCOON); /* Simulate a ^Q. */ +# endif /* !ksr1 */ +# else /* !TERMIOS_TTY_DRIVER */ +# if defined (TCXONC) + ioctl (fildes, TCXONC, TCOON); +# endif /* TCXONC */ +# endif /* !TERMIOS_TTY_DRIVER */ +#endif /* !TIOCSTART */ + + return 0; +} + +rl_stop_output (count, key) + int count, key; +{ + int fildes = fileno (rl_instream); + +#if defined (TIOCSTOP) +# if defined (apollo) + ioctl (&fildes, TIOCSTOP, 0); +# else + ioctl (fildes, TIOCSTOP, 0); +# endif /* apollo */ +#else /* !TIOCSTOP */ +# if defined (TERMIOS_TTY_DRIVER) +# if defined (__ksr1__) + ksrflow = 1; +# endif /* ksr1 */ + tcflow (fildes, TCOOFF); +# else +# if defined (TCXONC) + ioctl (fildes, TCXONC, TCOON); +# endif /* TCXONC */ +# endif /* !TERMIOS_TTY_DRIVER */ +#endif /* !TIOCSTOP */ + + return 0; +} + +/* **************************************************************** */ +/* */ +/* Default Key Bindings */ +/* */ +/* **************************************************************** */ +void +rltty_set_default_bindings (kmap) + Keymap kmap; +{ + TIOTYPE ttybuff; + int tty = fileno (rl_instream); + +#if defined (NEW_TTY_DRIVER) + +#define SET_SPECIAL(sc, func) \ + do \ + { \ + int ic; \ + ic = sc; \ + if (ic != -1 && kmap[ic].type == ISFUNC) \ + kmap[ic].function = func; \ + } \ + while (0) + + if (get_tty_settings (tty, &ttybuff) == 0) + { + if (ttybuff.flags & SGTTY_SET) + { + SET_SPECIAL (ttybuff.sgttyb.sg_erase, rl_rubout); + SET_SPECIAL (ttybuff.sgttyb.sg_kill, rl_unix_line_discard); + } + +# if defined (TIOCGLTC) + if (ttybuff.flags & LTCHARS_SET) + { + SET_SPECIAL (ttybuff.ltchars.t_werasc, rl_unix_word_rubout); + SET_SPECIAL (ttybuff.ltchars.t_lnextc, rl_quoted_insert); + } +# endif /* TIOCGLTC */ + } + +#else /* !NEW_TTY_DRIVER */ + +#define SET_SPECIAL(sc, func) \ + do \ + { \ + unsigned char uc; \ + uc = ttybuff.c_cc[sc]; \ + if (uc != (unsigned char)_POSIX_VDISABLE && kmap[uc].type == ISFUNC) \ + kmap[uc].function = func; \ + } \ + while (0) + + if (get_tty_settings (tty, &ttybuff) == 0) + { + SET_SPECIAL (VERASE, rl_rubout); + SET_SPECIAL (VKILL, rl_unix_line_discard); + +# if defined (VLNEXT) && defined (TERMIOS_TTY_DRIVER) + SET_SPECIAL (VLNEXT, rl_quoted_insert); +# endif /* VLNEXT && TERMIOS_TTY_DRIVER */ + +# if defined (VWERASE) && defined (TERMIOS_TTY_DRIVER) + SET_SPECIAL (VWERASE, rl_unix_word_rubout); +# endif /* VWERASE && TERMIOS_TTY_DRIVER */ + } +#endif /* !NEW_TTY_DRIVER */ +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/search.c Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,370 @@ +/* search.c - code for non-incremental searching in emacs and vi modes. */ + +/* Copyright (C) 1992 Free Software Foundation, Inc. + + This file is part of the Readline Library (the Library), a set of + routines for providing Emacs style line input to programs that ask + for it. + + The Library is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 1, or (at your option) + any later version. + + The Library is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + The GNU General Public License is often shipped with GNU software, and + is generally kept in a file called COPYING or LICENSE. If you do not + have a copy of the license, write to the Free Software Foundation, + 675 Mass Ave, Cambridge, MA 02139, USA. */ +#define READLINE_LIBRARY + +#include <sys/types.h> +#include <stdio.h> + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif + +#include "rldefs.h" +#include "readline.h" +#include "history.h" + +#define STREQ(a, b) (((a)[0] == (b)[0]) && (strcmp ((a), (b)) == 0)) +#define STREQN(a, b, n) (((a)[0] == (b)[0]) && (strncmp ((a), (b), (n)) == 0)) + +#define abs(x) (((x) > 0) ? (x) : -(x)) + +extern char *xmalloc (), *xrealloc (); + +/* Variables imported from readline.c */ +extern int rl_point, rl_end, rl_line_buffer_len; +extern Keymap _rl_keymap; +extern int rl_editing_mode; +extern char *rl_prompt; +extern char *rl_line_buffer; +extern HIST_ENTRY *saved_line_for_history; +extern Function *rl_last_func; + +/* Functions imported from the rest of the library. */ +extern int _rl_free_history_entry (); + +static char *noninc_search_string = (char *) NULL; +static int noninc_history_pos = 0; +static char *prev_line_found = (char *) NULL; + +/* Search the history list for STRING starting at absolute history position + POS. If STRING begins with `^', the search must match STRING at the + beginning of a history line, otherwise a full substring match is performed + for STRING. DIR < 0 means to search backwards through the history list, + DIR >= 0 means to search forward. */ +static int +noninc_search_from_pos (string, pos, dir) + char *string; + int pos, dir; +{ + int ret, old; + + old = where_history (); + history_set_pos (pos); + + if (*string == '^') + ret = history_search_prefix (string + 1, dir); + else + ret = history_search (string, dir); + + if (ret != -1) + ret = where_history (); + + history_set_pos (old); + return (ret); +} + +/* Search for a line in the history containing STRING. If DIR is < 0, the + search is backwards through previous entries, else through subsequent + entries. */ +static void +noninc_dosearch (string, dir) + char *string; + int dir; +{ + int oldpos, pos; + HIST_ENTRY *entry; + + if (string == 0 || *string == '\0' || noninc_history_pos < 0) + { + ding (); + return; + } + + pos = noninc_search_from_pos (string, noninc_history_pos + dir, dir); + if (pos == -1) + { + /* Search failed, current history position unchanged. */ + maybe_unsave_line (); + rl_clear_message (); + rl_point = 0; + ding (); + return; + } + + noninc_history_pos = pos; + + oldpos = where_history (); + history_set_pos (noninc_history_pos); + entry = current_history (); +#if defined (VI_MODE) + if (rl_editing_mode != vi_mode) +#endif + history_set_pos (oldpos); + + { + int line_len; + + line_len = strlen (entry->line); + if (line_len >= rl_line_buffer_len) + rl_extend_line_buffer (line_len); + strcpy (rl_line_buffer, entry->line); + } + + rl_undo_list = (UNDO_LIST *)entry->data; + rl_end = strlen (rl_line_buffer); + rl_point = 0; + rl_clear_message (); + + if (saved_line_for_history) + _rl_free_history_entry (saved_line_for_history); + saved_line_for_history = (HIST_ENTRY *)NULL; +} + +/* Search non-interactively through the history list. DIR < 0 means to + search backwards through the history of previous commands; otherwise + the search is for commands subsequent to the current position in the + history list. PCHAR is the character to use for prompting when reading + the search string; if not specified (0), it defaults to `:'. */ +static void +noninc_search (dir, pchar) + int dir; + int pchar; +{ + int saved_point, c, pmtlen; + char *p; + + maybe_save_line (); + saved_point = rl_point; + + /* Use the line buffer to read the search string. */ + rl_line_buffer[0] = 0; + rl_end = rl_point = 0; + + /* XXX - this needs fixing to work with the prompt expansion stuff - XXX */ + pmtlen = (rl_prompt && *rl_prompt) ? strlen (rl_prompt) : 0; + p = xmalloc (2 + pmtlen); + if (pmtlen) + strcpy (p, rl_prompt); + p[pmtlen] = pchar ? pchar : ':'; + p[pmtlen + 1] = '\0'; + + rl_message (p, 0, 0); + free (p); + + /* Read the search string. */ + while (c = rl_read_key ()) + { + switch (c) + { + case CTRL('H'): + case RUBOUT: + if (rl_point == 0) + { + maybe_unsave_line (); + rl_clear_message (); + rl_point = saved_point; + return; + } + rl_rubout (1); + break; + + case CTRL('W'): + rl_unix_word_rubout (1, c); + break; + + case CTRL('U'): + rl_unix_line_discard (1, c); + break; + + case RETURN: + case NEWLINE: + goto dosearch; + /* NOTREACHED */ + break; + + case CTRL('C'): + case CTRL('G'): + maybe_unsave_line (); + rl_clear_message (); + rl_point = saved_point; + ding (); + return; + + default: + rl_insert (1, c); + break; + } + rl_redisplay (); + } + + dosearch: + /* If rl_point == 0, we want to re-use the previous search string and + start from the saved history position. If there's no previous search + string, punt. */ + if (rl_point == 0) + { + if (!noninc_search_string) + { + ding (); + return; + } + } + else + { + /* We want to start the search from the current history position. */ + noninc_history_pos = where_history (); + if (noninc_search_string) + free (noninc_search_string); + noninc_search_string = savestring (rl_line_buffer); + } + + noninc_dosearch (noninc_search_string, dir); +} + +/* Search forward through the history list for a string. If the vi-mode + code calls this, KEY will be `?'. */ +rl_noninc_forward_search (count, key) + int count, key; +{ + if (key == '?') + noninc_search (1, '?'); + else + noninc_search (1, 0); + return 0; +} + +/* Reverse search the history list for a string. If the vi-mode code + calls this, KEY will be `/'. */ +rl_noninc_reverse_search (count, key) + int count, key; +{ + if (key == '/') + noninc_search (-1, '/'); + else + noninc_search (-1, 0); + return 0; +} + +/* Search forward through the history list for the last string searched + for. If there is no saved search string, abort. */ +rl_noninc_forward_search_again (count, key) + int count, key; +{ + if (!noninc_search_string) + { + ding (); + return (-1); + } + noninc_dosearch (noninc_search_string, 1); + return 0; +} + +/* Reverse search in the history list for the last string searched + for. If there is no saved search string, abort. */ +rl_noninc_reverse_search_again (count, key) + int count, key; +{ + if (!noninc_search_string) + { + ding (); + return (-1); + } + noninc_dosearch (noninc_search_string, -1); + return 0; +} + +static int +rl_history_search_internal (count, direction) + int count, direction; +{ + HIST_ENTRY *temp, *old_temp; + int line_len; + + maybe_save_line (); + + temp = old_temp = (HIST_ENTRY *)NULL; + while (count) + { + temp = (direction < 0) ? previous_history () : next_history (); + if (!temp) + break; + if (STREQN (rl_line_buffer, temp->line, rl_point)) + { + /* Don't find multiple instances of the same line. */ + if (prev_line_found && STREQ (prev_line_found, temp->line)) + continue; + if (direction < 0) + old_temp = temp; + prev_line_found = temp->line; + count--; + } + } + + if (!temp) + { + if (direction < 0 && old_temp) + temp = old_temp; + else + { + maybe_unsave_line (); + ding (); + return 1; + } + } + + line_len = strlen (temp->line); + if (line_len >= rl_line_buffer_len) + rl_extend_line_buffer (line_len); + strcpy (rl_line_buffer, temp->line); + rl_undo_list = (UNDO_LIST *)temp->data; + rl_end = line_len; + return 0; +} + +/* Search forward in the history for the string of characters + from the start of the line to rl_point. This is a non-incremental + search. */ +int +rl_history_search_forward (count, ignore) + int count, ignore; +{ + if (count == 0) + return (0); + if (rl_last_func != rl_history_search_forward) + prev_line_found = (char *)NULL; + return (rl_history_search_internal (abs (count), (count > 0) ? 1 : -1)); +} + +/* Search backward through the history for the string of characters + from the start of the line to rl_point. This is a non-incremental + search. */ +int +rl_history_search_backward (count, ignore) + int count, ignore; +{ + if (count == 0) + return (0); + if (rl_last_func != rl_history_search_backward) + prev_line_found = (char *)NULL; + return (rl_history_search_internal (abs (count), (count > 0) ? -1 : 1)); +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/signals.c Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,287 @@ +/* signals.c -- signal handling support for readline. */ + +/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc. + + This file is part of the GNU Readline Library, a library for + reading lines of text with interactive input and history editing. + + The GNU Readline Library is free software; you can redistribute it + and/or modify it under the terms of the GNU General Public License + as published by the Free Software Foundation; either version 1, or + (at your option) any later version. + + The GNU Readline Library is distributed in the hope that it will be + useful, but WITHOUT ANY WARRANTY; without even the implied warranty + of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + The GNU General Public License is often shipped with GNU software, and + is generally kept in a file called COPYING or LICENSE. If you do not + have a copy of the license, write to the Free Software Foundation, + 675 Mass Ave, Cambridge, MA 02139, USA. */ +#define READLINE_LIBRARY + +#include <stdio.h> +#include <sys/types.h> +#include <fcntl.h> +#if !defined (NO_SYS_FILE) +# include <sys/file.h> +#endif /* !NO_SYS_FILE */ +#include <signal.h> + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif /* HAVE_UNISTD_H */ + +#if defined (HAVE_STDLIB_H) +# include <stdlib.h> +#else +# include "ansi_stdlib.h" +#endif /* HAVE_STDLIB_H */ + +#include <errno.h> +/* Not all systems declare ERRNO in errno.h... and some systems #define it! */ +#if !defined (errno) +extern int errno; +#endif /* !errno */ + +#include "posixstat.h" + +/* System-specific feature definitions and include files. */ +#include "rldefs.h" + +#if defined (GWINSZ_IN_SYS_IOCTL) +# include <sys/ioctl.h> +#endif /* GWINSZ_IN_SYS_IOCTL */ + +/* Some standard library routines. */ +#include "readline.h" +#include "history.h" + +extern int readline_echoing_p; +extern int rl_pending_input; +extern int _rl_meta_flag; + +extern void free_undo_list (); + +#if defined (VOID_SIGHANDLER) +# define sighandler void +#else +# define sighandler int +#endif /* VOID_SIGHANDLER */ + +/* This typedef is equivalant to the one for Function; it allows us + to say SigHandler *foo = signal (SIGKILL, SIG_IGN); */ +typedef sighandler SigHandler (); + +#if defined (__GO32__) +# undef HANDLE_SIGNALS +#endif /* __GO32__ */ + +#if defined (STATIC_MALLOC) +static char *xmalloc (), *xrealloc (); +#else +extern char *xmalloc (), *xrealloc (); +#endif /* STATIC_MALLOC */ + + +/* **************************************************************** */ +/* */ +/* Signal Handling */ +/* */ +/* **************************************************************** */ + +#if defined (SIGWINCH) +static SigHandler *old_sigwinch = (SigHandler *)NULL; + +static sighandler +rl_handle_sigwinch (sig) + int sig; +{ + if (readline_echoing_p) + { + _rl_set_screen_size (fileno (rl_instream), 1); + _rl_redisplay_after_sigwinch (); + } + + if (old_sigwinch && + old_sigwinch != (SigHandler *)SIG_IGN && + old_sigwinch != (SigHandler *)SIG_DFL) + (*old_sigwinch) (sig); +#if !defined (VOID_SIGHANDLER) + return (0); +#endif /* VOID_SIGHANDLER */ +} +#endif /* SIGWINCH */ + +#if defined (HANDLE_SIGNALS) +/* Interrupt handling. */ +static SigHandler + *old_int = (SigHandler *)NULL, + *old_alrm = (SigHandler *)NULL; +#if !defined (SHELL) +static SigHandler + *old_tstp = (SigHandler *)NULL, + *old_ttou = (SigHandler *)NULL, + *old_ttin = (SigHandler *)NULL, + *old_cont = (SigHandler *)NULL; +#endif /* !SHELL */ + +/* Handle an interrupt character. */ +static sighandler +rl_signal_handler (sig) + int sig; +{ +#if defined (HAVE_POSIX_SIGNALS) + sigset_t set; +#else /* !HAVE_POSIX_SIGNALS */ +# if defined (HAVE_BSD_SIGNALS) + long omask; +# endif /* HAVE_BSD_SIGNALS */ +#endif /* !HAVE_POSIX_SIGNALS */ + +#if !defined (HAVE_BSD_SIGNALS) && !defined (HAVE_POSIX_SIGNALS) + /* Since the signal will not be blocked while we are in the signal + handler, ignore it until rl_clear_signals resets the catcher. */ + if (sig == SIGINT) + signal (sig, SIG_IGN); +#endif /* !HAVE_BSD_SIGNALS */ + + switch (sig) + { + case SIGINT: + { + register HIST_ENTRY *entry; + + free_undo_list (); + + entry = current_history (); + if (entry) + entry->data = (char *)NULL; + } + _rl_kill_kbd_macro (); + rl_clear_message (); + rl_init_argument (); + +#if defined (SIGTSTP) + case SIGTSTP: + case SIGTTOU: + case SIGTTIN: +#endif /* SIGTSTP */ + case SIGALRM: + rl_clean_up_for_exit (); + rl_deprep_terminal (); + rl_clear_signals (); + rl_pending_input = 0; + +#if defined (HAVE_POSIX_SIGNALS) + sigprocmask (SIG_BLOCK, (sigset_t *)NULL, &set); + sigdelset (&set, sig); +#else /* !HAVE_POSIX_SIGNALS */ +# if defined (HAVE_BSD_SIGNALS) + omask = sigblock (0); +# endif /* HAVE_BSD_SIGNALS */ +#endif /* !HAVE_POSIX_SIGNALS */ + + kill (getpid (), sig); + + /* Let the signal that we just sent through. */ +#if defined (HAVE_POSIX_SIGNALS) + sigprocmask (SIG_SETMASK, &set, (sigset_t *)NULL); +#else /* !HAVE_POSIX_SIGNALS */ +# if defined (HAVE_BSD_SIGNALS) + sigsetmask (omask & ~(sigmask (sig))); +# endif /* HAVE_BSD_SIGNALS */ +#endif /* !HAVE_POSIX_SIGNALS */ + + rl_prep_terminal (_rl_meta_flag); + rl_set_signals (); + } + +#if !defined (VOID_SIGHANDLER) + return (0); +#endif /* !VOID_SIGHANDLER */ +} + +#if defined (HAVE_POSIX_SIGNALS) +static SigHandler * +rl_set_sighandler (sig, handler) + int sig; + SigHandler *handler; +{ + struct sigaction act, oact; + + act.sa_handler = handler; + act.sa_flags = 0; + sigemptyset (&act.sa_mask); + sigemptyset (&oact.sa_mask); + sigaction (sig, &act, &oact); + return (oact.sa_handler); +} + +#else /* !HAVE_POSIX_SIGNALS */ +# define rl_set_sighandler(sig, handler) (SigHandler *)signal (sig, handler) +#endif /* !HAVE_POSIX_SIGNALS */ + +rl_set_signals () +{ + old_int = (SigHandler *)rl_set_sighandler (SIGINT, rl_signal_handler); + if (old_int == (SigHandler *)SIG_IGN) + signal (SIGINT, SIG_IGN); + + old_alrm = (SigHandler *)rl_set_sighandler (SIGALRM, rl_signal_handler); + if (old_alrm == (SigHandler *)SIG_IGN) + signal (SIGALRM, SIG_IGN); + +#if !defined (SHELL) + +#if defined (SIGTSTP) + old_tstp = (SigHandler *)rl_set_sighandler (SIGTSTP, rl_signal_handler); + if (old_tstp == (SigHandler *)SIG_IGN) + signal (SIGTSTP, SIG_IGN); +#endif /* SIGTSTP */ +#if defined (SIGTTOU) + old_ttou = (SigHandler *)rl_set_sighandler (SIGTTOU, rl_signal_handler); + old_ttin = (SigHandler *)rl_set_sighandler (SIGTTIN, rl_signal_handler); + + if (old_tstp == (SigHandler *)SIG_IGN) + { + signal (SIGTTOU, SIG_IGN); + signal (SIGTTIN, SIG_IGN); + } +#endif /* SIGTTOU */ + +#endif /* !SHELL */ + +#if defined (SIGWINCH) + old_sigwinch = + (SigHandler *) rl_set_sighandler (SIGWINCH, rl_handle_sigwinch); +#endif /* SIGWINCH */ + return 0; +} + +rl_clear_signals () +{ + rl_set_sighandler (SIGINT, old_int); + rl_set_sighandler (SIGALRM, old_alrm); + +#if !defined (SHELL) + +#if defined (SIGTSTP) + rl_set_sighandler (SIGTSTP, old_tstp); +#endif + +#if defined (SIGTTOU) + rl_set_sighandler (SIGTTOU, old_ttou); + rl_set_sighandler (SIGTTIN, old_ttin); +#endif /* SIGTTOU */ + +#endif /* !SHELL */ + +#if defined (SIGWINCH) + rl_set_sighandler (SIGWINCH, old_sigwinch); +#endif + + return 0; +} +#endif /* HANDLE_SIGNALS */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/tilde.c Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,380 @@ +/* tilde.c -- Tilde expansion code (~/foo := $HOME/foo). */ + +/* Copyright (C) 1988,1989 Free Software Foundation, Inc. + + This file is part of GNU Readline, a library for reading lines + of text with interactive input and history editing. + + Readline is free software; you can redistribute it and/or modify it + under the terms of the GNU General Public License as published by the + Free Software Foundation; either version 1, or (at your option) any + later version. + + Readline is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public License + along with Readline; see the file COPYING. If not, write to the Free + Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#if defined (HAVE_STRING_H) +# include <string.h> +#else /* !HAVE_STRING_H */ +# include <strings.h> +#endif /* !HAVE_STRING_H */ + +#if defined (HAVE_STDLIB_H) +# include <stdlib.h> +#else +# include "ansi_stdlib.h" +#endif /* HAVE_STDLIB_H */ + +#include "tilde.h" +#include <sys/types.h> +#include <pwd.h> + +#if defined (USG) && !defined (HAVE_GETPW_DECLS) +extern struct passwd *getpwuid (), *getpwnam (); +#endif /* USG && !defined (HAVE_GETPW_DECLS) */ + +#if !defined (savestring) +extern char *xmalloc (); +# ifndef strcpy +extern char *strcpy (); +# endif +#define savestring(x) strcpy (xmalloc (1 + strlen (x)), (x)) +#endif /* !savestring */ + +#if !defined (NULL) +# if defined (__STDC__) +# define NULL ((void *) 0) +# else +# define NULL 0x0 +# endif /* !__STDC__ */ +#endif /* !NULL */ + +#if defined (TEST) || defined (STATIC_MALLOC) +static char *xmalloc (), *xrealloc (); +#else +extern char *xmalloc (), *xrealloc (); +#endif /* TEST || STATIC_MALLOC */ + +/* The default value of tilde_additional_prefixes. This is set to + whitespace preceding a tilde so that simple programs which do not + perform any word separation get desired behaviour. */ +static char *default_prefixes[] = + { " ~", "\t~", (char *)NULL }; + +/* The default value of tilde_additional_suffixes. This is set to + whitespace or newline so that simple programs which do not + perform any word separation get desired behaviour. */ +static char *default_suffixes[] = + { " ", "\n", (char *)NULL }; + +/* If non-null, this contains the address of a function to call if the + standard meaning for expanding a tilde fails. The function is called + with the text (sans tilde, as in "foo"), and returns a malloc()'ed string + which is the expansion, or a NULL pointer if there is no expansion. */ +CPFunction *tilde_expansion_failure_hook = (CPFunction *)NULL; + +/* When non-null, this is a NULL terminated array of strings which + are duplicates for a tilde prefix. Bash uses this to expand + `=~' and `:~'. */ +char **tilde_additional_prefixes = default_prefixes; + +/* When non-null, this is a NULL terminated array of strings which match + the end of a username, instead of just "/". Bash sets this to + `:' and `=~'. */ +char **tilde_additional_suffixes = default_suffixes; + +/* Find the start of a tilde expansion in STRING, and return the index of + the tilde which starts the expansion. Place the length of the text + which identified this tilde starter in LEN, excluding the tilde itself. */ +static int +tilde_find_prefix (string, len) + char *string; + int *len; +{ + register int i, j, string_len; + register char **prefixes = tilde_additional_prefixes; + + string_len = strlen (string); + *len = 0; + + if (!*string || *string == '~') + return (0); + + if (prefixes) + { + for (i = 0; i < string_len; i++) + { + for (j = 0; prefixes[j]; j++) + { + if (strncmp (string + i, prefixes[j], strlen (prefixes[j])) == 0) + { + *len = strlen (prefixes[j]) - 1; + return (i + *len); + } + } + } + } + return (string_len); +} + +/* Find the end of a tilde expansion in STRING, and return the index of + the character which ends the tilde definition. */ +static int +tilde_find_suffix (string) + char *string; +{ + register int i, j, string_len; + register char **suffixes = tilde_additional_suffixes; + + string_len = strlen (string); + + for (i = 0; i < string_len; i++) + { + if (string[i] == '/' || !string[i]) + break; + + for (j = 0; suffixes && suffixes[j]; j++) + { + if (strncmp (string + i, suffixes[j], strlen (suffixes[j])) == 0) + return (i); + } + } + return (i); +} + +/* Return a new string which is the result of tilde expanding STRING. */ +char * +tilde_expand (string) + char *string; +{ + char *result, *tilde_expand_word (); + int result_size, result_index; + + result_size = result_index = 0; + result = (char *)NULL; + + /* Scan through STRING expanding tildes as we come to them. */ + while (1) + { + register int start, end; + char *tilde_word, *expansion; + int len; + + /* Make START point to the tilde which starts the expansion. */ + start = tilde_find_prefix (string, &len); + + /* Copy the skipped text into the result. */ + if ((result_index + start + 1) > result_size) + result = (char *)xrealloc (result, 1 + (result_size += (start + 20))); + + strncpy (result + result_index, string, start); + result_index += start; + + /* Advance STRING to the starting tilde. */ + string += start; + + /* Make END be the index of one after the last character of the + username. */ + end = tilde_find_suffix (string); + + /* If both START and END are zero, we are all done. */ + if (!start && !end) + break; + + /* Expand the entire tilde word, and copy it into RESULT. */ + tilde_word = (char *)xmalloc (1 + end); + strncpy (tilde_word, string, end); + tilde_word[end] = '\0'; + string += end; + + expansion = tilde_expand_word (tilde_word); + free (tilde_word); + + len = strlen (expansion); + if ((result_index + len + 1) > result_size) + result = (char *)xrealloc (result, 1 + (result_size += (len + 20))); + + strcpy (result + result_index, expansion); + result_index += len; + free (expansion); + } + + result[result_index] = '\0'; + + return (result); +} + +/* Do the work of tilde expansion on FILENAME. FILENAME starts with a + tilde. If there is no expansion, call tilde_expansion_failure_hook. */ +char * +tilde_expand_word (filename) + char *filename; +{ + char *dirname; + + dirname = filename ? savestring (filename) : (char *)NULL; + + if (dirname && *dirname == '~') + { + char *temp_name; + if (!dirname[1] || dirname[1] == '/') + { + /* Prepend $HOME to the rest of the string. */ + char *temp_home = (char *)getenv ("HOME"); + + /* If there is no HOME variable, look up the directory in + the password database. */ + if (!temp_home) + { + struct passwd *entry; + + entry = getpwuid (getuid ()); + if (entry) + temp_home = entry->pw_dir; + } + + temp_name = xmalloc (1 + strlen (&dirname[1]) + + (temp_home ? strlen (temp_home) : 0)); + temp_name[0] = '\0'; + if (temp_home) + strcpy (temp_name, temp_home); + strcat (temp_name, dirname + 1); + free (dirname); + dirname = temp_name; + } + else + { + char *username; + struct passwd *user_entry; + int i; + + username = xmalloc (strlen (dirname)); + for (i = 1; dirname[i] && dirname[i] != '/'; i++) + username[i - 1] = dirname[i]; + username[i - 1] = '\0'; + + if ((user_entry = getpwnam (username)) == 0) + { + /* If the calling program has a special syntax for + expanding tildes, and we couldn't find a standard + expansion, then let them try. */ + if (tilde_expansion_failure_hook) + { + char *expansion; + + expansion = (*tilde_expansion_failure_hook) (username); + + if (expansion) + { + temp_name = xmalloc (1 + strlen (expansion) + + strlen (&dirname[i])); + strcpy (temp_name, expansion); + strcat (temp_name, &dirname[i]); + free (expansion); + free (dirname); + dirname = temp_name; + } + } + /* We shouldn't report errors. */ + } + else + { + temp_name = xmalloc (1 + strlen (user_entry->pw_dir) + + strlen (&dirname[i])); + strcpy (temp_name, user_entry->pw_dir); + strcat (temp_name, &dirname[i]); + free (dirname); + dirname = temp_name; + } + endpwent (); + free (username); + } + } + return (dirname); +} + + +#if defined (TEST) +#undef NULL +#include <stdio.h> + +main (argc, argv) + int argc; + char **argv; +{ + char *result, line[512]; + int done = 0; + + while (!done) + { + printf ("~expand: "); + fflush (stdout); + + if (!gets (line)) + strcpy (line, "done"); + + if ((strcmp (line, "done") == 0) || + (strcmp (line, "quit") == 0) || + (strcmp (line, "exit") == 0)) + { + done = 1; + break; + } + + result = tilde_expand (line); + printf (" --> %s\n", result); + free (result); + } + exit (0); +} + +static void memory_error_and_abort (); + +static char * +xmalloc (bytes) + int bytes; +{ + char *temp = (char *)malloc (bytes); + + if (!temp) + memory_error_and_abort (); + return (temp); +} + +static char * +xrealloc (pointer, bytes) + char *pointer; + int bytes; +{ + char *temp; + + if (!pointer) + temp = (char *)malloc (bytes); + else + temp = (char *)realloc (pointer, bytes); + + if (!temp) + memory_error_and_abort (); + + return (temp); +} + +static void +memory_error_and_abort () +{ + fprintf (stderr, "readline: Out of virtual memory!\n"); + abort (); +} + +/* + * Local variables: + * compile-command: "gcc -g -DTEST -o tilde tilde.c" + * end: + */ +#endif /* TEST */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/tilde.h Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,38 @@ +/* tilde.h: Externally available variables and function in libtilde.a. */ + +#if !defined (__TILDE_H__) +# define __TILDE_H__ + +/* Function pointers can be declared as (Function *)foo. */ +#if !defined (__FUNCTION_DEF) +# define __FUNCTION_DEF +typedef int Function (); +typedef void VFunction (); +typedef char *CPFunction (); +typedef char **CPPFunction (); +#endif /* _FUNCTION_DEF */ + +/* If non-null, this contains the address of a function to call if the + standard meaning for expanding a tilde fails. The function is called + with the text (sans tilde, as in "foo"), and returns a malloc()'ed string + which is the expansion, or a NULL pointer if there is no expansion. */ +extern CPFunction *tilde_expansion_failure_hook; + +/* When non-null, this is a NULL terminated array of strings which + are duplicates for a tilde prefix. Bash uses this to expand + `=~' and `:~'. */ +extern char **tilde_additional_prefixes; + +/* When non-null, this is a NULL terminated array of strings which match + the end of a username, instead of just "/". Bash sets this to + `:' and `=~'. */ +extern char **tilde_additional_suffixes; + +/* Return a new string which is the result of tilde expanding STRING. */ +extern char *tilde_expand (); + +/* Do the work of tilde expansion on FILENAME. FILENAME starts with a + tilde. If there is no expansion, call tilde_expansion_failure_hook. */ +extern char *tilde_expand_word (); + +#endif /* __TILDE_H__ */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/vi_keymap.c Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,877 @@ +/* vi_keymap.c -- the keymap for vi_mode in readline (). */ + +/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc. + + This file is part of the GNU Readline Library, a library for + reading lines of text with interactive input and history editing. + + The GNU Readline Library is free software; you can redistribute it + and/or modify it under the terms of the GNU General Public License + as published by the Free Software Foundation; either version 1, or + (at your option) any later version. + + The GNU Readline Library is distributed in the hope that it will be + useful, but WITHOUT ANY WARRANTY; without even the implied warranty + of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + The GNU General Public License is often shipped with GNU software, and + is generally kept in a file called COPYING or LICENSE. If you do not + have a copy of the license, write to the Free Software Foundation, + 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#if !defined (BUFSIZ) +#include <stdio.h> +#endif /* !BUFSIZ */ + +#include "readline.h" + +#if 0 +extern KEYMAP_ENTRY_ARRAY vi_escape_keymap; +#endif + +/* The keymap arrays for handling vi mode. */ +KEYMAP_ENTRY_ARRAY vi_movement_keymap = { + /* The regular control keys come first. */ + { ISFUNC, (Function *)0x0 }, /* Control-@ */ + { ISFUNC, (Function *)0x0 }, /* Control-a */ + { ISFUNC, (Function *)0x0 }, /* Control-b */ + { ISFUNC, (Function *)0x0 }, /* Control-c */ + { ISFUNC, rl_vi_eof_maybe }, /* Control-d */ + { ISFUNC, rl_emacs_editing_mode }, /* Control-e */ + { ISFUNC, (Function *)0x0 }, /* Control-f */ + { ISFUNC, rl_abort }, /* Control-g */ + { ISFUNC, rl_backward }, /* Control-h */ + { ISFUNC, (Function *)0x0 }, /* Control-i */ + { ISFUNC, rl_newline }, /* Control-j */ + { ISFUNC, rl_kill_line }, /* Control-k */ + { ISFUNC, rl_clear_screen }, /* Control-l */ + { ISFUNC, rl_newline }, /* Control-m */ + { ISFUNC, rl_get_next_history }, /* Control-n */ + { ISFUNC, (Function *)0x0 }, /* Control-o */ + { ISFUNC, rl_get_previous_history }, /* Control-p */ + { ISFUNC, rl_quoted_insert }, /* Control-q */ + { ISFUNC, rl_reverse_search_history }, /* Control-r */ + { ISFUNC, rl_forward_search_history }, /* Control-s */ + { ISFUNC, rl_transpose_chars }, /* Control-t */ + { ISFUNC, rl_unix_line_discard }, /* Control-u */ + { ISFUNC, rl_quoted_insert }, /* Control-v */ + { ISFUNC, rl_unix_word_rubout }, /* Control-w */ + { ISFUNC, (Function *)0x0 }, /* Control-x */ + { ISFUNC, rl_yank }, /* Control-y */ + { ISFUNC, (Function *)0x0 }, /* Control-z */ + + { ISFUNC, (Function *)0x0 }, /* Control-[ */ /* vi_escape_keymap */ + { ISFUNC, (Function *)0x0 }, /* Control-\ */ + { ISFUNC, (Function *)0x0 }, /* Control-] */ + { ISFUNC, (Function *)0x0 }, /* Control-^ */ + { ISFUNC, rl_undo_command }, /* Control-_ */ + + /* The start of printing characters. */ + { ISFUNC, rl_forward }, /* SPACE */ + { ISFUNC, (Function *)0x0 }, /* ! */ + { ISFUNC, (Function *)0x0 }, /* " */ + { ISFUNC, rl_vi_comment }, /* # */ + { ISFUNC, rl_end_of_line }, /* $ */ + { ISFUNC, rl_vi_match }, /* % */ + { ISFUNC, rl_vi_tilde_expand }, /* & */ + { ISFUNC, (Function *)0x0 }, /* ' */ + { ISFUNC, (Function *)0x0 }, /* ( */ + { ISFUNC, (Function *)0x0 }, /* ) */ + { ISFUNC, rl_vi_complete }, /* * */ + { ISFUNC, rl_get_next_history}, /* + */ + { ISFUNC, rl_vi_char_search }, /* , */ + { ISFUNC, rl_get_previous_history }, /* - */ + { ISFUNC, rl_vi_redo }, /* . */ + { ISFUNC, rl_vi_search }, /* / */ + + /* Regular digits. */ + { ISFUNC, rl_beg_of_line }, /* 0 */ + { ISFUNC, rl_vi_arg_digit }, /* 1 */ + { ISFUNC, rl_vi_arg_digit }, /* 2 */ + { ISFUNC, rl_vi_arg_digit }, /* 3 */ + { ISFUNC, rl_vi_arg_digit }, /* 4 */ + { ISFUNC, rl_vi_arg_digit }, /* 5 */ + { ISFUNC, rl_vi_arg_digit }, /* 6 */ + { ISFUNC, rl_vi_arg_digit }, /* 7 */ + { ISFUNC, rl_vi_arg_digit }, /* 8 */ + { ISFUNC, rl_vi_arg_digit }, /* 9 */ + + /* A little more punctuation. */ + { ISFUNC, (Function *)0x0 }, /* : */ + { ISFUNC, rl_vi_char_search }, /* ; */ + { ISFUNC, (Function *)0x0 }, /* < */ + { ISFUNC, rl_vi_complete }, /* = */ + { ISFUNC, (Function *)0x0 }, /* > */ + { ISFUNC, rl_vi_search }, /* ? */ + { ISFUNC, (Function *)0x0 }, /* @ */ + + /* Uppercase alphabet. */ + { ISFUNC, rl_vi_append_eol }, /* A */ + { ISFUNC, rl_vi_prev_word}, /* B */ + { ISFUNC, rl_vi_change_to }, /* C */ + { ISFUNC, rl_vi_delete_to }, /* D */ + { ISFUNC, rl_vi_end_word }, /* E */ + { ISFUNC, rl_vi_char_search }, /* F */ + { ISFUNC, rl_vi_fetch_history }, /* G */ + { ISFUNC, (Function *)0x0 }, /* H */ + { ISFUNC, rl_vi_insert_beg }, /* I */ + { ISFUNC, (Function *)0x0 }, /* J */ + { ISFUNC, (Function *)0x0 }, /* K */ + { ISFUNC, (Function *)0x0 }, /* L */ + { ISFUNC, (Function *)0x0 }, /* M */ + { ISFUNC, rl_vi_search_again }, /* N */ + { ISFUNC, (Function *)0x0 }, /* O */ + { ISFUNC, rl_vi_put }, /* P */ + { ISFUNC, (Function *)0x0 }, /* Q */ + { ISFUNC, rl_vi_replace }, /* R */ + { ISFUNC, rl_vi_subst }, /* S */ + { ISFUNC, rl_vi_char_search }, /* T */ + { ISFUNC, rl_revert_line }, /* U */ + { ISFUNC, (Function *)0x0 }, /* V */ + { ISFUNC, rl_vi_next_word }, /* W */ + { ISFUNC, rl_rubout }, /* X */ + { ISFUNC, rl_vi_yank_to }, /* Y */ + { ISFUNC, (Function *)0x0 }, /* Z */ + + /* Some more punctuation. */ + { ISFUNC, (Function *)0x0 }, /* [ */ + { ISFUNC, rl_vi_complete }, /* \ */ + { ISFUNC, (Function *)0x0 }, /* ] */ + { ISFUNC, rl_vi_first_print }, /* ^ */ + { ISFUNC, rl_vi_yank_arg }, /* _ */ + { ISFUNC, (Function *)0x0 }, /* ` */ + + /* Lowercase alphabet. */ + { ISFUNC, rl_vi_append_mode }, /* a */ + { ISFUNC, rl_vi_prev_word }, /* b */ + { ISFUNC, rl_vi_change_to }, /* c */ + { ISFUNC, rl_vi_delete_to }, /* d */ + { ISFUNC, rl_vi_end_word }, /* e */ + { ISFUNC, rl_vi_char_search }, /* f */ + { ISFUNC, (Function *)0x0 }, /* g */ + { ISFUNC, rl_backward }, /* h */ + { ISFUNC, rl_vi_insertion_mode }, /* i */ + { ISFUNC, rl_get_next_history }, /* j */ + { ISFUNC, rl_get_previous_history }, /* k */ + { ISFUNC, rl_forward }, /* l */ + { ISFUNC, (Function *)0x0 }, /* m */ + { ISFUNC, rl_vi_search_again }, /* n */ + { ISFUNC, (Function *)0x0 }, /* o */ + { ISFUNC, rl_vi_put }, /* p */ + { ISFUNC, (Function *)0x0 }, /* q */ + { ISFUNC, rl_vi_change_char }, /* r */ + { ISFUNC, rl_vi_subst }, /* s */ + { ISFUNC, rl_vi_char_search }, /* t */ + { ISFUNC, rl_undo_command }, /* u */ + { ISFUNC, (Function *)0x0 }, /* v */ + { ISFUNC, rl_vi_next_word }, /* w */ + { ISFUNC, rl_vi_delete }, /* x */ + { ISFUNC, rl_vi_yank_to }, /* y */ + { ISFUNC, (Function *)0x0 }, /* z */ + + /* Final punctuation. */ + { ISFUNC, (Function *)0x0 }, /* { */ + { ISFUNC, rl_vi_column }, /* | */ + { ISFUNC, (Function *)0x0 }, /* } */ + { ISFUNC, rl_vi_change_case }, /* ~ */ + { ISFUNC, (Function *)0x0 }, /* RUBOUT */ + +#if KEYMAP_SIZE > 128 + /* Undefined keys. */ + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 } +#endif /* KEYMAP_SIZE > 128 */ +}; + + +KEYMAP_ENTRY_ARRAY vi_insertion_keymap = { + /* The regular control keys come first. */ + { ISFUNC, (Function *)0x0 }, /* Control-@ */ + { ISFUNC, rl_insert }, /* Control-a */ + { ISFUNC, rl_insert }, /* Control-b */ + { ISFUNC, rl_insert }, /* Control-c */ + { ISFUNC, rl_vi_eof_maybe }, /* Control-d */ + { ISFUNC, rl_insert }, /* Control-e */ + { ISFUNC, rl_insert }, /* Control-f */ + { ISFUNC, rl_insert }, /* Control-g */ + { ISFUNC, rl_rubout }, /* Control-h */ + { ISFUNC, rl_complete }, /* Control-i */ + { ISFUNC, rl_newline }, /* Control-j */ + { ISFUNC, rl_insert }, /* Control-k */ + { ISFUNC, rl_insert }, /* Control-l */ + { ISFUNC, rl_newline }, /* Control-m */ + { ISFUNC, rl_insert }, /* Control-n */ + { ISFUNC, rl_insert }, /* Control-o */ + { ISFUNC, rl_insert }, /* Control-p */ + { ISFUNC, rl_insert }, /* Control-q */ + { ISFUNC, rl_reverse_search_history }, /* Control-r */ + { ISFUNC, rl_forward_search_history }, /* Control-s */ + { ISFUNC, rl_transpose_chars }, /* Control-t */ + { ISFUNC, rl_unix_line_discard }, /* Control-u */ + { ISFUNC, rl_quoted_insert }, /* Control-v */ + { ISFUNC, rl_unix_word_rubout }, /* Control-w */ + { ISFUNC, rl_insert }, /* Control-x */ + { ISFUNC, rl_yank }, /* Control-y */ + { ISFUNC, rl_insert }, /* Control-z */ + + { ISFUNC, rl_vi_movement_mode }, /* Control-[ */ + { ISFUNC, rl_insert }, /* Control-\ */ + { ISFUNC, rl_insert }, /* Control-] */ + { ISFUNC, rl_insert }, /* Control-^ */ + { ISFUNC, rl_undo_command }, /* Control-_ */ + + /* The start of printing characters. */ + { ISFUNC, rl_insert }, /* SPACE */ + { ISFUNC, rl_insert }, /* ! */ + { ISFUNC, rl_insert }, /* " */ + { ISFUNC, rl_insert }, /* # */ + { ISFUNC, rl_insert }, /* $ */ + { ISFUNC, rl_insert }, /* % */ + { ISFUNC, rl_insert }, /* & */ + { ISFUNC, rl_insert }, /* ' */ + { ISFUNC, rl_insert }, /* ( */ + { ISFUNC, rl_insert }, /* ) */ + { ISFUNC, rl_insert }, /* * */ + { ISFUNC, rl_insert }, /* + */ + { ISFUNC, rl_insert }, /* , */ + { ISFUNC, rl_insert }, /* - */ + { ISFUNC, rl_insert }, /* . */ + { ISFUNC, rl_insert }, /* / */ + + /* Regular digits. */ + { ISFUNC, rl_insert }, /* 0 */ + { ISFUNC, rl_insert }, /* 1 */ + { ISFUNC, rl_insert }, /* 2 */ + { ISFUNC, rl_insert }, /* 3 */ + { ISFUNC, rl_insert }, /* 4 */ + { ISFUNC, rl_insert }, /* 5 */ + { ISFUNC, rl_insert }, /* 6 */ + { ISFUNC, rl_insert }, /* 7 */ + { ISFUNC, rl_insert }, /* 8 */ + { ISFUNC, rl_insert }, /* 9 */ + + /* A little more punctuation. */ + { ISFUNC, rl_insert }, /* : */ + { ISFUNC, rl_insert }, /* ; */ + { ISFUNC, rl_insert }, /* < */ + { ISFUNC, rl_insert }, /* = */ + { ISFUNC, rl_insert }, /* > */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* @ */ + + /* Uppercase alphabet. */ + { ISFUNC, rl_insert }, /* A */ + { ISFUNC, rl_insert }, /* B */ + { ISFUNC, rl_insert }, /* C */ + { ISFUNC, rl_insert }, /* D */ + { ISFUNC, rl_insert }, /* E */ + { ISFUNC, rl_insert }, /* F */ + { ISFUNC, rl_insert }, /* G */ + { ISFUNC, rl_insert }, /* H */ + { ISFUNC, rl_insert }, /* I */ + { ISFUNC, rl_insert }, /* J */ + { ISFUNC, rl_insert }, /* K */ + { ISFUNC, rl_insert }, /* L */ + { ISFUNC, rl_insert }, /* M */ + { ISFUNC, rl_insert }, /* N */ + { ISFUNC, rl_insert }, /* O */ + { ISFUNC, rl_insert }, /* P */ + { ISFUNC, rl_insert }, /* Q */ + { ISFUNC, rl_insert }, /* R */ + { ISFUNC, rl_insert }, /* S */ + { ISFUNC, rl_insert }, /* T */ + { ISFUNC, rl_insert }, /* U */ + { ISFUNC, rl_insert }, /* V */ + { ISFUNC, rl_insert }, /* W */ + { ISFUNC, rl_insert }, /* X */ + { ISFUNC, rl_insert }, /* Y */ + { ISFUNC, rl_insert }, /* Z */ + + /* Some more punctuation. */ + { ISFUNC, rl_insert }, /* [ */ + { ISFUNC, rl_insert }, /* \ */ + { ISFUNC, rl_insert }, /* ] */ + { ISFUNC, rl_insert }, /* ^ */ + { ISFUNC, rl_insert }, /* _ */ + { ISFUNC, rl_insert }, /* ` */ + + /* Lowercase alphabet. */ + { ISFUNC, rl_insert }, /* a */ + { ISFUNC, rl_insert }, /* b */ + { ISFUNC, rl_insert }, /* c */ + { ISFUNC, rl_insert }, /* d */ + { ISFUNC, rl_insert }, /* e */ + { ISFUNC, rl_insert }, /* f */ + { ISFUNC, rl_insert }, /* g */ + { ISFUNC, rl_insert }, /* h */ + { ISFUNC, rl_insert }, /* i */ + { ISFUNC, rl_insert }, /* j */ + { ISFUNC, rl_insert }, /* k */ + { ISFUNC, rl_insert }, /* l */ + { ISFUNC, rl_insert }, /* m */ + { ISFUNC, rl_insert }, /* n */ + { ISFUNC, rl_insert }, /* o */ + { ISFUNC, rl_insert }, /* p */ + { ISFUNC, rl_insert }, /* q */ + { ISFUNC, rl_insert }, /* r */ + { ISFUNC, rl_insert }, /* s */ + { ISFUNC, rl_insert }, /* t */ + { ISFUNC, rl_insert }, /* u */ + { ISFUNC, rl_insert }, /* v */ + { ISFUNC, rl_insert }, /* w */ + { ISFUNC, rl_insert }, /* x */ + { ISFUNC, rl_insert }, /* y */ + { ISFUNC, rl_insert }, /* z */ + + /* Final punctuation. */ + { ISFUNC, rl_insert }, /* { */ + { ISFUNC, rl_insert }, /* | */ + { ISFUNC, rl_insert }, /* } */ + { ISFUNC, rl_insert }, /* ~ */ + { ISFUNC, rl_rubout }, /* RUBOUT */ + +#if KEYMAP_SIZE > 128 + /* Pure 8-bit characters (128 - 159). + These might be used in some + character sets. */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + { ISFUNC, rl_insert }, /* ? */ + + /* ISO Latin-1 characters (160 - 255) */ + { ISFUNC, rl_insert }, /* No-break space */ + { ISFUNC, rl_insert }, /* Inverted exclamation mark */ + { ISFUNC, rl_insert }, /* Cent sign */ + { ISFUNC, rl_insert }, /* Pound sign */ + { ISFUNC, rl_insert }, /* Currency sign */ + { ISFUNC, rl_insert }, /* Yen sign */ + { ISFUNC, rl_insert }, /* Broken bar */ + { ISFUNC, rl_insert }, /* Section sign */ + { ISFUNC, rl_insert }, /* Diaeresis */ + { ISFUNC, rl_insert }, /* Copyright sign */ + { ISFUNC, rl_insert }, /* Feminine ordinal indicator */ + { ISFUNC, rl_insert }, /* Left pointing double angle quotation mark */ + { ISFUNC, rl_insert }, /* Not sign */ + { ISFUNC, rl_insert }, /* Soft hyphen */ + { ISFUNC, rl_insert }, /* Registered sign */ + { ISFUNC, rl_insert }, /* Macron */ + { ISFUNC, rl_insert }, /* Degree sign */ + { ISFUNC, rl_insert }, /* Plus-minus sign */ + { ISFUNC, rl_insert }, /* Superscript two */ + { ISFUNC, rl_insert }, /* Superscript three */ + { ISFUNC, rl_insert }, /* Acute accent */ + { ISFUNC, rl_insert }, /* Micro sign */ + { ISFUNC, rl_insert }, /* Pilcrow sign */ + { ISFUNC, rl_insert }, /* Middle dot */ + { ISFUNC, rl_insert }, /* Cedilla */ + { ISFUNC, rl_insert }, /* Superscript one */ + { ISFUNC, rl_insert }, /* Masculine ordinal indicator */ + { ISFUNC, rl_insert }, /* Right pointing double angle quotation mark */ + { ISFUNC, rl_insert }, /* Vulgar fraction one quarter */ + { ISFUNC, rl_insert }, /* Vulgar fraction one half */ + { ISFUNC, rl_insert }, /* Vulgar fraction three quarters */ + { ISFUNC, rl_insert }, /* Inverted questionk mark */ + { ISFUNC, rl_insert }, /* Latin capital letter a with grave */ + { ISFUNC, rl_insert }, /* Latin capital letter a with acute */ + { ISFUNC, rl_insert }, /* Latin capital letter a with circumflex */ + { ISFUNC, rl_insert }, /* Latin capital letter a with tilde */ + { ISFUNC, rl_insert }, /* Latin capital letter a with diaeresis */ + { ISFUNC, rl_insert }, /* Latin capital letter a with ring above */ + { ISFUNC, rl_insert }, /* Latin capital letter ae */ + { ISFUNC, rl_insert }, /* Latin capital letter c with cedilla */ + { ISFUNC, rl_insert }, /* Latin capital letter e with grave */ + { ISFUNC, rl_insert }, /* Latin capital letter e with acute */ + { ISFUNC, rl_insert }, /* Latin capital letter e with circumflex */ + { ISFUNC, rl_insert }, /* Latin capital letter e with diaeresis */ + { ISFUNC, rl_insert }, /* Latin capital letter i with grave */ + { ISFUNC, rl_insert }, /* Latin capital letter i with acute */ + { ISFUNC, rl_insert }, /* Latin capital letter i with circumflex */ + { ISFUNC, rl_insert }, /* Latin capital letter i with diaeresis */ + { ISFUNC, rl_insert }, /* Latin capital letter eth (Icelandic) */ + { ISFUNC, rl_insert }, /* Latin capital letter n with tilde */ + { ISFUNC, rl_insert }, /* Latin capital letter o with grave */ + { ISFUNC, rl_insert }, /* Latin capital letter o with acute */ + { ISFUNC, rl_insert }, /* Latin capital letter o with circumflex */ + { ISFUNC, rl_insert }, /* Latin capital letter o with tilde */ + { ISFUNC, rl_insert }, /* Latin capital letter o with diaeresis */ + { ISFUNC, rl_insert }, /* Multiplication sign */ + { ISFUNC, rl_insert }, /* Latin capital letter o with stroke */ + { ISFUNC, rl_insert }, /* Latin capital letter u with grave */ + { ISFUNC, rl_insert }, /* Latin capital letter u with acute */ + { ISFUNC, rl_insert }, /* Latin capital letter u with circumflex */ + { ISFUNC, rl_insert }, /* Latin capital letter u with diaeresis */ + { ISFUNC, rl_insert }, /* Latin capital letter Y with acute */ + { ISFUNC, rl_insert }, /* Latin capital letter thorn (Icelandic) */ + { ISFUNC, rl_insert }, /* Latin small letter sharp s (German) */ + { ISFUNC, rl_insert }, /* Latin small letter a with grave */ + { ISFUNC, rl_insert }, /* Latin small letter a with acute */ + { ISFUNC, rl_insert }, /* Latin small letter a with circumflex */ + { ISFUNC, rl_insert }, /* Latin small letter a with tilde */ + { ISFUNC, rl_insert }, /* Latin small letter a with diaeresis */ + { ISFUNC, rl_insert }, /* Latin small letter a with ring above */ + { ISFUNC, rl_insert }, /* Latin small letter ae */ + { ISFUNC, rl_insert }, /* Latin small letter c with cedilla */ + { ISFUNC, rl_insert }, /* Latin small letter e with grave */ + { ISFUNC, rl_insert }, /* Latin small letter e with acute */ + { ISFUNC, rl_insert }, /* Latin small letter e with circumflex */ + { ISFUNC, rl_insert }, /* Latin small letter e with diaeresis */ + { ISFUNC, rl_insert }, /* Latin small letter i with grave */ + { ISFUNC, rl_insert }, /* Latin small letter i with acute */ + { ISFUNC, rl_insert }, /* Latin small letter i with circumflex */ + { ISFUNC, rl_insert }, /* Latin small letter i with diaeresis */ + { ISFUNC, rl_insert }, /* Latin small letter eth (Icelandic) */ + { ISFUNC, rl_insert }, /* Latin small letter n with tilde */ + { ISFUNC, rl_insert }, /* Latin small letter o with grave */ + { ISFUNC, rl_insert }, /* Latin small letter o with acute */ + { ISFUNC, rl_insert }, /* Latin small letter o with circumflex */ + { ISFUNC, rl_insert }, /* Latin small letter o with tilde */ + { ISFUNC, rl_insert }, /* Latin small letter o with diaeresis */ + { ISFUNC, rl_insert }, /* Division sign */ + { ISFUNC, rl_insert }, /* Latin small letter o with stroke */ + { ISFUNC, rl_insert }, /* Latin small letter u with grave */ + { ISFUNC, rl_insert }, /* Latin small letter u with acute */ + { ISFUNC, rl_insert }, /* Latin small letter u with circumflex */ + { ISFUNC, rl_insert }, /* Latin small letter u with diaeresis */ + { ISFUNC, rl_insert }, /* Latin small letter y with acute */ + { ISFUNC, rl_insert }, /* Latin small letter thorn (Icelandic) */ + { ISFUNC, rl_insert } /* Latin small letter y with diaeresis */ +#endif /* KEYMAP_SIZE > 128 */ +}; + +/* Unused for the time being. */ +#if 0 +KEYMAP_ENTRY_ARRAY vi_escape_keymap = { + /* The regular control keys come first. */ + { ISFUNC, (Function *)0x0 }, /* Control-@ */ + { ISFUNC, (Function *)0x0 }, /* Control-a */ + { ISFUNC, (Function *)0x0 }, /* Control-b */ + { ISFUNC, (Function *)0x0 }, /* Control-c */ + { ISFUNC, (Function *)0x0 }, /* Control-d */ + { ISFUNC, (Function *)0x0 }, /* Control-e */ + { ISFUNC, (Function *)0x0 }, /* Control-f */ + { ISFUNC, (Function *)0x0 }, /* Control-g */ + { ISFUNC, (Function *)0x0 }, /* Control-h */ + { ISFUNC, rl_tab_insert}, /* Control-i */ + { ISFUNC, rl_emacs_editing_mode}, /* Control-j */ + { ISFUNC, rl_kill_line }, /* Control-k */ + { ISFUNC, (Function *)0x0 }, /* Control-l */ + { ISFUNC, rl_emacs_editing_mode}, /* Control-m */ + { ISFUNC, (Function *)0x0 }, /* Control-n */ + { ISFUNC, (Function *)0x0 }, /* Control-o */ + { ISFUNC, (Function *)0x0 }, /* Control-p */ + { ISFUNC, (Function *)0x0 }, /* Control-q */ + { ISFUNC, (Function *)0x0 }, /* Control-r */ + { ISFUNC, (Function *)0x0 }, /* Control-s */ + { ISFUNC, (Function *)0x0 }, /* Control-t */ + { ISFUNC, (Function *)0x0 }, /* Control-u */ + { ISFUNC, (Function *)0x0 }, /* Control-v */ + { ISFUNC, (Function *)0x0 }, /* Control-w */ + { ISFUNC, (Function *)0x0 }, /* Control-x */ + { ISFUNC, (Function *)0x0 }, /* Control-y */ + { ISFUNC, (Function *)0x0 }, /* Control-z */ + + { ISFUNC, rl_vi_movement_mode }, /* Control-[ */ + { ISFUNC, (Function *)0x0 }, /* Control-\ */ + { ISFUNC, (Function *)0x0 }, /* Control-] */ + { ISFUNC, (Function *)0x0 }, /* Control-^ */ + { ISFUNC, rl_undo_command }, /* Control-_ */ + + /* The start of printing characters. */ + { ISFUNC, (Function *)0x0 }, /* SPACE */ + { ISFUNC, (Function *)0x0 }, /* ! */ + { ISFUNC, (Function *)0x0 }, /* " */ + { ISFUNC, (Function *)0x0 }, /* # */ + { ISFUNC, (Function *)0x0 }, /* $ */ + { ISFUNC, (Function *)0x0 }, /* % */ + { ISFUNC, (Function *)0x0 }, /* & */ + { ISFUNC, (Function *)0x0 }, /* ' */ + { ISFUNC, (Function *)0x0 }, /* ( */ + { ISFUNC, (Function *)0x0 }, /* ) */ + { ISFUNC, (Function *)0x0 }, /* * */ + { ISFUNC, (Function *)0x0 }, /* + */ + { ISFUNC, (Function *)0x0 }, /* , */ + { ISFUNC, (Function *)0x0 }, /* - */ + { ISFUNC, (Function *)0x0 }, /* . */ + { ISFUNC, (Function *)0x0 }, /* / */ + + /* Regular digits. */ + { ISFUNC, rl_vi_arg_digit }, /* 0 */ + { ISFUNC, rl_vi_arg_digit }, /* 1 */ + { ISFUNC, rl_vi_arg_digit }, /* 2 */ + { ISFUNC, rl_vi_arg_digit }, /* 3 */ + { ISFUNC, rl_vi_arg_digit }, /* 4 */ + { ISFUNC, rl_vi_arg_digit }, /* 5 */ + { ISFUNC, rl_vi_arg_digit }, /* 6 */ + { ISFUNC, rl_vi_arg_digit }, /* 7 */ + { ISFUNC, rl_vi_arg_digit }, /* 8 */ + { ISFUNC, rl_vi_arg_digit }, /* 9 */ + + /* A little more punctuation. */ + { ISFUNC, (Function *)0x0 }, /* : */ + { ISFUNC, (Function *)0x0 }, /* ; */ + { ISFUNC, (Function *)0x0 }, /* < */ + { ISFUNC, (Function *)0x0 }, /* = */ + { ISFUNC, (Function *)0x0 }, /* > */ + { ISFUNC, (Function *)0x0 }, /* ? */ + { ISFUNC, (Function *)0x0 }, /* @ */ + + /* Uppercase alphabet. */ + { ISFUNC, rl_do_lowercase_version }, /* A */ + { ISFUNC, rl_do_lowercase_version }, /* B */ + { ISFUNC, rl_do_lowercase_version }, /* C */ + { ISFUNC, rl_do_lowercase_version }, /* D */ + { ISFUNC, rl_do_lowercase_version }, /* E */ + { ISFUNC, rl_do_lowercase_version }, /* F */ + { ISFUNC, rl_do_lowercase_version }, /* G */ + { ISFUNC, rl_do_lowercase_version }, /* H */ + { ISFUNC, rl_do_lowercase_version }, /* I */ + { ISFUNC, rl_do_lowercase_version }, /* J */ + { ISFUNC, rl_do_lowercase_version }, /* K */ + { ISFUNC, rl_do_lowercase_version }, /* L */ + { ISFUNC, rl_do_lowercase_version }, /* M */ + { ISFUNC, rl_do_lowercase_version }, /* N */ + { ISFUNC, rl_do_lowercase_version }, /* O */ + { ISFUNC, rl_do_lowercase_version }, /* P */ + { ISFUNC, rl_do_lowercase_version }, /* Q */ + { ISFUNC, rl_do_lowercase_version }, /* R */ + { ISFUNC, rl_do_lowercase_version }, /* S */ + { ISFUNC, rl_do_lowercase_version }, /* T */ + { ISFUNC, rl_do_lowercase_version }, /* U */ + { ISFUNC, rl_do_lowercase_version }, /* V */ + { ISFUNC, rl_do_lowercase_version }, /* W */ + { ISFUNC, rl_do_lowercase_version }, /* X */ + { ISFUNC, rl_do_lowercase_version }, /* Y */ + { ISFUNC, rl_do_lowercase_version }, /* Z */ + + /* Some more punctuation. */ + { ISFUNC, rl_arrow_keys }, /* [ */ + { ISFUNC, (Function *)0x0 }, /* \ */ + { ISFUNC, (Function *)0x0 }, /* ] */ + { ISFUNC, (Function *)0x0 }, /* ^ */ + { ISFUNC, (Function *)0x0 }, /* _ */ + { ISFUNC, (Function *)0x0 }, /* ` */ + + /* Lowercase alphabet. */ + { ISFUNC, (Function *)0x0 }, /* a */ + { ISFUNC, (Function *)0x0 }, /* b */ + { ISFUNC, (Function *)0x0 }, /* c */ + { ISFUNC, (Function *)0x0 }, /* d */ + { ISFUNC, (Function *)0x0 }, /* e */ + { ISFUNC, (Function *)0x0 }, /* f */ + { ISFUNC, (Function *)0x0 }, /* g */ + { ISFUNC, (Function *)0x0 }, /* h */ + { ISFUNC, (Function *)0x0 }, /* i */ + { ISFUNC, (Function *)0x0 }, /* j */ + { ISFUNC, (Function *)0x0 }, /* k */ + { ISFUNC, (Function *)0x0 }, /* l */ + { ISFUNC, (Function *)0x0 }, /* m */ + { ISFUNC, (Function *)0x0 }, /* n */ + { ISFUNC, rl_arrow_keys }, /* o */ + { ISFUNC, (Function *)0x0 }, /* p */ + { ISFUNC, (Function *)0x0 }, /* q */ + { ISFUNC, (Function *)0x0 }, /* r */ + { ISFUNC, (Function *)0x0 }, /* s */ + { ISFUNC, (Function *)0x0 }, /* t */ + { ISFUNC, (Function *)0x0 }, /* u */ + { ISFUNC, (Function *)0x0 }, /* v */ + { ISFUNC, (Function *)0x0 }, /* w */ + { ISFUNC, (Function *)0x0 }, /* x */ + { ISFUNC, (Function *)0x0 }, /* y */ + { ISFUNC, (Function *)0x0 }, /* z */ + + /* Final punctuation. */ + { ISFUNC, (Function *)0x0 }, /* { */ + { ISFUNC, (Function *)0x0 }, /* | */ + { ISFUNC, (Function *)0x0 }, /* } */ + { ISFUNC, (Function *)0x0 }, /* ~ */ + { ISFUNC, rl_backward_kill_word }, /* RUBOUT */ + +#if KEYMAP_SIZE > 128 + /* Undefined keys. */ + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 }, + { ISFUNC, (Function *)0x0 } +#endif /* KEYMAP_SIZE > 128 */ +}; +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/vi_mode.c Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,1329 @@ +/* vi_mode.c -- A vi emulation mode for Bash. + Derived from code written by Jeff Sparkes (jsparkes@bnr.ca). */ + +/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc. + + This file is part of the GNU Readline Library, a library for + reading lines of text with interactive input and history editing. + + The GNU Readline Library is free software; you can redistribute it + and/or modify it under the terms of the GNU General Public License + as published by the Free Software Foundation; either version 1, or + (at your option) any later version. + + The GNU Readline Library is distributed in the hope that it will be + useful, but WITHOUT ANY WARRANTY; without even the implied warranty + of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + The GNU General Public License is often shipped with GNU software, and + is generally kept in a file called COPYING or LICENSE. If you do not + have a copy of the license, write to the Free Software Foundation, + 675 Mass Ave, Cambridge, MA 02139, USA. */ +#define READLINE_LIBRARY + +/* **************************************************************** */ +/* */ +/* VI Emulation Mode */ +/* */ +/* **************************************************************** */ +#include "rlconf.h" + +#if defined (VI_MODE) + +#include <sys/types.h> + +#if defined (HAVE_STDLIB_H) +# include <stdlib.h> +#else +# include "ansi_stdlib.h" +#endif /* HAVE_STDLIB_H */ + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif + +#include <stdio.h> + +/* Some standard library routines. */ +#include "rldefs.h" +#include "readline.h" +#include "history.h" + +#ifndef digit_p +#define digit_p(c) ((c) >= '0' && (c) <= '9') +#endif + +#ifndef digit_value +#define digit_value(c) ((c) - '0') +#endif + +#ifndef member +#define member(c, s) ((c) ? (char *)strchr ((s), (c)) != (char *)NULL : 0) +#endif + +#ifndef isident +#define isident(c) ((pure_alphabetic (c) || digit_p (c) || c == '_')) +#endif + +#ifndef exchange +#define exchange(x, y) do {int temp = x; x = y; y = temp;} while (0) +#endif + +#ifndef VI_COMMENT_BEGIN_DEFAULT +#define VI_COMMENT_BEGIN_DEFAULT "#" +#endif + +#if defined (STATIC_MALLOC) +static char *xmalloc (), *xrealloc (); +#else +extern char *xmalloc (), *xrealloc (); +#endif /* STATIC_MALLOC */ + +/* Variables imported from readline.c */ +extern int rl_point, rl_end, rl_mark, rl_done; +extern FILE *rl_instream; +extern int rl_line_buffer_len, rl_explicit_arg, rl_numeric_arg; +extern Keymap _rl_keymap; +extern char *rl_prompt; +extern char *rl_line_buffer; +extern int rl_arg_sign; + +extern void _rl_dispatch (); + +extern void rl_extend_line_buffer (); +extern int rl_vi_check (); + +/* Non-zero means enter insertion mode. */ +static int _rl_vi_doing_insert = 0; + +/* String inserted into the line by rl_vi_comment (). */ +char *rl_vi_comment_begin = (char *)NULL; + +/* *** UNCLEAN *** */ +/* Command keys which do movement for xxx_to commands. */ +static char *vi_motion = " hl^$0ftFt;,%wbeWBE|"; + +/* Keymap used for vi replace characters. Created dynamically since + rarely used. */ +static Keymap vi_replace_map = (Keymap)NULL; + +/* The number of characters inserted in the last replace operation. */ +static int vi_replace_count = 0; + +/* If non-zero, we have text inserted after a c[motion] command that put + us implicitly into insert mode. Some people want this text to be + attached to the command so that it is `redoable' with `.'. */ +static int vi_continued_command = 0; + +static int _rl_vi_last_command = 'i'; /* default `.' puts you in insert mode */ +static int _rl_vi_last_repeat = 1; +static int _rl_vi_last_arg_sign = 1; +static int _rl_vi_last_motion = 0; +static int _rl_vi_last_search_char = 0; +static int _rl_vi_last_replacement = 0; + +static int vi_redoing = 0; + +/* Text modification commands. These are the `redoable' commands. */ +static char *vi_textmod = "_*\\AaIiCcDdPpYyRrSsXx~"; + +static int rl_digit_loop1 (); + +void +_rl_vi_reset_last () +{ + _rl_vi_last_command = 'i'; + _rl_vi_last_repeat = 1; + _rl_vi_last_arg_sign = 1; + _rl_vi_last_motion = 0; +} + +void +_rl_vi_set_last (key, repeat, sign) + int key, repeat, sign; +{ + _rl_vi_last_command = key; + _rl_vi_last_repeat = repeat; + _rl_vi_last_arg_sign = sign; +} + +/* Is the command C a VI mode text modification command? */ +int +rl_vi_textmod_command (c) + int c; +{ + return (member (c, vi_textmod)); +} + +/* Bound to `.'. Called from command mode, so we know that we have to + redo a text modification command. The default for _rl_vi_last_command + puts you back into insert mode. */ +rl_vi_redo (count, c) + int count, c; +{ + if (!rl_explicit_arg) + { + rl_numeric_arg = _rl_vi_last_repeat; + rl_arg_sign = _rl_vi_last_arg_sign; + } + + vi_redoing = 1; + _rl_dispatch (_rl_vi_last_command, _rl_keymap); + vi_redoing = 0; + + return (0); +} + +/* Yank the nth arg from the previous line into this line at point. */ +rl_vi_yank_arg (count, key) + int count, key; +{ + /* Readline thinks that the first word on a line is the 0th, while vi + thinks the first word on a line is the 1st. Compensate. */ + if (rl_explicit_arg) + rl_yank_nth_arg (count - 1, 0); + else + rl_yank_nth_arg ('$', 0); + + return (0); +} + +/* With an argument, move back that many history lines, else move to the + beginning of history. */ +rl_vi_fetch_history (count, c) + int count, c; +{ + int current = where_history (); + + /* Giving an argument of n means we want the nth command in the history + file. The command number is interpreted the same way that the bash + `history' command does it -- that is, giving an argument count of 450 + to this command would get the command listed as number 450 in the + output of `history'. */ + if (rl_explicit_arg) + { + int wanted = history_base + current - count; + if (wanted <= 0) + rl_beginning_of_history (0, 0); + else + rl_get_previous_history (wanted); + } + else + rl_beginning_of_history (count, 0); + return (0); +} + +/* Search again for the last thing searched for. */ +rl_vi_search_again (count, key) + int count, key; +{ + switch (key) + { + case 'n': + rl_noninc_reverse_search_again (count, key); + break; + + case 'N': + rl_noninc_forward_search_again (count, key); + break; + } + return (0); +} + +/* Do a vi style search. */ +rl_vi_search (count, key) + int count, key; +{ + switch (key) + { + case '?': + rl_noninc_forward_search (count, key); + break; + + case '/': + rl_noninc_reverse_search (count, key); + break; + + default: + ding (); + break; + } + return (0); +} + +/* Completion, from vi's point of view. */ +rl_vi_complete (ignore, key) + int ignore, key; +{ + if ((rl_point < rl_end) && (!whitespace (rl_line_buffer[rl_point]))) + { + if (!whitespace (rl_line_buffer[rl_point + 1])) + rl_vi_end_word (1, 'E'); + rl_point++; + } + + if (key == '*') + rl_complete_internal ('*'); /* Expansion and replacement. */ + else if (key == '=') + rl_complete_internal ('?'); /* List possible completions. */ + else if (key == '\\') + rl_complete_internal (TAB); /* Standard Readline completion. */ + else + rl_complete (0, key); + + if (key == '*' || key == '\\') + { + _rl_vi_set_last (key, 1, rl_arg_sign); + rl_vi_insertion_mode (1, key); + } + return (0); +} + +/* Tilde expansion for vi mode. */ +rl_vi_tilde_expand (ignore, key) + int ignore, key; +{ + rl_tilde_expand (0, key); + _rl_vi_set_last (key, 1, rl_arg_sign); /* XXX */ + rl_vi_insertion_mode (1, key); + return (0); +} + +/* Previous word in vi mode. */ +rl_vi_prev_word (count, key) + int count, key; +{ + if (count < 0) + return (rl_vi_next_word (-count, key)); + + if (rl_point == 0) + { + ding (); + return (0); + } + + if (uppercase_p (key)) + rl_vi_bWord (count); + else + rl_vi_bword (count); + + return (0); +} + +/* Next word in vi mode. */ +rl_vi_next_word (count, key) + int count, key; +{ + if (count < 0) + return (rl_vi_prev_word (-count, key)); + + if (rl_point >= (rl_end - 1)) + { + ding (); + return (0); + } + + if (uppercase_p (key)) + rl_vi_fWord (count); + else + rl_vi_fword (count); + return (0); +} + +/* Move to the end of the ?next? word. */ +rl_vi_end_word (count, key) + int count, key; +{ + if (count < 0) + { + ding (); + return -1; + } + + if (uppercase_p (key)) + rl_vi_eWord (count); + else + rl_vi_eword (count); + return (0); +} + +/* Move forward a word the way that 'W' does. */ +rl_vi_fWord (count) + int count; +{ + while (count-- && rl_point < (rl_end - 1)) + { + /* Skip until whitespace. */ + while (!whitespace (rl_line_buffer[rl_point]) && rl_point < rl_end) + rl_point++; + + /* Now skip whitespace. */ + while (whitespace (rl_line_buffer[rl_point]) && rl_point < rl_end) + rl_point++; + } + return (0); +} + +rl_vi_bWord (count) + int count; +{ + while (count-- && rl_point > 0) + { + /* If we are at the start of a word, move back to whitespace so + we will go back to the start of the previous word. */ + if (!whitespace (rl_line_buffer[rl_point]) && + whitespace (rl_line_buffer[rl_point - 1])) + rl_point--; + + while (rl_point > 0 && whitespace (rl_line_buffer[rl_point])) + rl_point--; + + if (rl_point > 0) + { + while (--rl_point >= 0 && !whitespace (rl_line_buffer[rl_point])); + rl_point++; + } + } + return (0); +} + +rl_vi_eWord (count) + int count; +{ + while (count-- && rl_point < (rl_end - 1)) + { + if (!whitespace (rl_line_buffer[rl_point])) + rl_point++; + + /* Move to the next non-whitespace character (to the start of the + next word). */ + while (++rl_point < rl_end && whitespace (rl_line_buffer[rl_point])); + + if (rl_point && rl_point < rl_end) + { + /* Skip whitespace. */ + while (rl_point < rl_end && whitespace (rl_line_buffer[rl_point])) + rl_point++; + + /* Skip until whitespace. */ + while (rl_point < rl_end && !whitespace (rl_line_buffer[rl_point])) + rl_point++; + + /* Move back to the last character of the word. */ + rl_point--; + } + } + return (0); +} + +rl_vi_fword (count) + int count; +{ + while (count-- && rl_point < (rl_end - 1)) + { + /* Move to white space (really non-identifer). */ + if (isident (rl_line_buffer[rl_point])) + { + while (isident (rl_line_buffer[rl_point]) && rl_point < rl_end) + rl_point++; + } + else /* if (!whitespace (rl_line_buffer[rl_point])) */ + { + while (!isident (rl_line_buffer[rl_point]) && + !whitespace (rl_line_buffer[rl_point]) && rl_point < rl_end) + rl_point++; + } + + /* Move past whitespace. */ + while (whitespace (rl_line_buffer[rl_point]) && rl_point < rl_end) + rl_point++; + } + return (0); +} + +rl_vi_bword (count) + int count; +{ + while (count-- && rl_point > 0) + { + int last_is_ident; + + /* If we are at the start of a word, move back to whitespace + so we will go back to the start of the previous word. */ + if (!whitespace (rl_line_buffer[rl_point]) && + whitespace (rl_line_buffer[rl_point - 1])) + rl_point--; + + /* If this character and the previous character are `opposite', move + back so we don't get messed up by the rl_point++ down there in + the while loop. Without this code, words like `l;' screw up the + function. */ + last_is_ident = isident (rl_line_buffer[rl_point - 1]); + if ((isident (rl_line_buffer[rl_point]) && !last_is_ident) || + (!isident (rl_line_buffer[rl_point]) && last_is_ident)) + rl_point--; + + while (rl_point > 0 && whitespace (rl_line_buffer[rl_point])) + rl_point--; + + if (rl_point > 0) + { + if (isident (rl_line_buffer[rl_point])) + while (--rl_point >= 0 && isident (rl_line_buffer[rl_point])); + else + while (--rl_point >= 0 && !isident (rl_line_buffer[rl_point]) && + !whitespace (rl_line_buffer[rl_point])); + rl_point++; + } + } + return (0); +} + +rl_vi_eword (count) + int count; +{ + while (count-- && rl_point < rl_end - 1) + { + if (!whitespace (rl_line_buffer[rl_point])) + rl_point++; + + while (rl_point < rl_end && whitespace (rl_line_buffer[rl_point])) + rl_point++; + + if (rl_point < rl_end) + { + if (isident (rl_line_buffer[rl_point])) + while (++rl_point < rl_end && isident (rl_line_buffer[rl_point])); + else + while (++rl_point < rl_end && !isident (rl_line_buffer[rl_point]) + && !whitespace (rl_line_buffer[rl_point])); + } + rl_point--; + } + return (0); +} + +rl_vi_insert_beg (count, key) + int count, key; +{ + rl_beg_of_line (1, key); + rl_vi_insertion_mode (1, key); + return (0); +} + +rl_vi_append_mode (count, key) + int count, key; +{ + if (rl_point < rl_end) + rl_point++; + rl_vi_insertion_mode (1, key); + return (0); +} + +rl_vi_append_eol (count, key) + int count, key; +{ + rl_end_of_line (1, key); + rl_vi_append_mode (1, key); + return (0); +} + +/* What to do in the case of C-d. */ +rl_vi_eof_maybe (count, c) + int count, c; +{ + return (rl_newline (1, '\n')); +} + +/* Insertion mode stuff. */ + +/* Switching from one mode to the other really just involves + switching keymaps. */ +rl_vi_insertion_mode (count, key) + int count, key; +{ + _rl_keymap = vi_insertion_keymap; + return (0); +} + +void +_rl_vi_done_inserting () +{ + if (_rl_vi_doing_insert) + { + rl_end_undo_group (); + /* Now, the text between rl_undo_list->next->start and + rl_undo_list->next->end is what was inserted while in insert + mode. */ + _rl_vi_doing_insert = 0; + vi_continued_command = 1; + } + else + vi_continued_command = 0; +} + +rl_vi_movement_mode (count, key) + int count, key; +{ + if (rl_point > 0) + rl_backward (1); + +#if 0 + _rl_vi_reset_last (); +#endif + + _rl_keymap = vi_movement_keymap; + _rl_vi_done_inserting (); + return (0); +} + +rl_vi_arg_digit (count, c) + int count, c; +{ + if (c == '0' && rl_numeric_arg == 1 && !rl_explicit_arg) + return (rl_beg_of_line ()); + else + return (rl_digit_argument (count, c)); +} + +rl_vi_change_case (count, ignore) + int count, ignore; +{ + char c = 0; + + /* Don't try this on an empty line. */ + if (rl_point >= rl_end) + return (0); + + while (count-- && rl_point < rl_end) + { + if (uppercase_p (rl_line_buffer[rl_point])) + c = to_lower (rl_line_buffer[rl_point]); + else if (lowercase_p (rl_line_buffer[rl_point])) + c = to_upper (rl_line_buffer[rl_point]); + else + { + /* Just skip over characters neither upper nor lower case. */ + rl_forward (1); + continue; + } + + /* Vi is kind of strange here. */ + if (c) + { + rl_begin_undo_group (); + rl_delete (1, c); + rl_insert (1, c); + rl_end_undo_group (); + rl_vi_check (); + } + else + rl_forward (1); + } + return (0); +} + +rl_vi_put (count, key) + int count, key; +{ + if (!uppercase_p (key) && (rl_point + 1 <= rl_end)) + rl_point++; + + rl_yank (); + rl_backward (1); + return (0); +} + +rl_vi_check () +{ + if (rl_point && rl_point == rl_end) + rl_point--; + return (0); +} + +rl_vi_column (count, key) + int count, key; +{ + if (count > rl_end) + rl_end_of_line (); + else + rl_point = count - 1; + return (0); +} + +int +rl_vi_domove (key, nextkey) + int key, *nextkey; +{ + int c, save; + int old_end; + + rl_mark = rl_point; + c = rl_read_key (); + *nextkey = c; + + if (!member (c, vi_motion)) + { + if (digit_p (c)) + { + save = rl_numeric_arg; + rl_numeric_arg = digit_value (c); + rl_digit_loop1 (); + rl_numeric_arg *= save; + c = rl_read_key (); /* real command */ + *nextkey = c; + } + else if (key == c && (key == 'd' || key == 'y' || key == 'c')) + { + rl_mark = rl_end; + rl_beg_of_line (); + _rl_vi_last_motion = c; + return (0); + } + else + return (-1); + } + + _rl_vi_last_motion = c; + + /* Append a blank character temporarily so that the motion routines + work right at the end of the line. */ + old_end = rl_end; + rl_line_buffer[rl_end++] = ' '; + rl_line_buffer[rl_end] = '\0'; + + _rl_dispatch (c, _rl_keymap); + + /* Remove the blank that we added. */ + rl_end = old_end; + rl_line_buffer[rl_end] = '\0'; + if (rl_point > rl_end) + rl_point = rl_end; + + /* No change in position means the command failed. */ + if (rl_mark == rl_point) + return (-1); + + /* rl_vi_f[wW]ord () leaves the cursor on the first character of the next + word. If we are not at the end of the line, and we are on a + non-whitespace character, move back one (presumably to whitespace). */ + if ((to_upper (c) == 'W') && rl_point < rl_end && rl_point > rl_mark && + !whitespace (rl_line_buffer[rl_point])) + rl_point--; + + /* If cw or cW, back up to the end of a word, so the behaviour of ce + or cE is the actual result. Brute-force, no subtlety. */ + if (key == 'c' && rl_point >= rl_mark && (to_upper (c) == 'W')) + { + /* Don't move farther back than where we started. */ + while (rl_point > rl_mark && whitespace (rl_line_buffer[rl_point])) + rl_point--; + + /* Posix.2 says that if cw or cW moves the cursor towards the end of + the line, the character under the cursor should be deleted. */ + if (rl_point == rl_mark) + rl_point++; + else + { + /* Move past the end of the word so that the kill doesn't + remove the last letter of the previous word. Only do this + if we are not at the end of the line. */ + if (rl_point >= 0 && rl_point < (rl_end - 1) && !whitespace (rl_line_buffer[rl_point])) + rl_point++; + } + } + + if (rl_mark < rl_point) + exchange (rl_point, rl_mark); + + return (0); +} + +/* A simplified loop for vi. Don't dispatch key at end. + Don't recognize minus sign? */ +static int +rl_digit_loop1 () +{ + int key, c; + + while (1) + { + rl_message ("(arg: %d) ", rl_arg_sign * rl_numeric_arg, 0); + key = c = rl_read_key (); + + if (_rl_keymap[c].type == ISFUNC && + _rl_keymap[c].function == rl_universal_argument) + { + rl_numeric_arg *= 4; + continue; + } + + c = UNMETA (c); + if (digit_p (c)) + { + if (rl_explicit_arg) + rl_numeric_arg = (rl_numeric_arg * 10) + digit_value (c); + else + rl_numeric_arg = digit_value (c); + rl_explicit_arg = 1; + } + else + { + rl_clear_message (); + rl_stuff_char (key); + break; + } + } + return (0); +} + +rl_vi_delete_to (count, key) + int count, key; +{ + int c; + + if (uppercase_p (key)) + rl_stuff_char ('$'); + else if (vi_redoing) + rl_stuff_char (_rl_vi_last_motion); + + if (rl_vi_domove (key, &c)) + { + ding (); + return -1; + } + + /* These are the motion commands that do not require adjusting the + mark. */ + if ((strchr (" l|h^0bB", c) == 0) && (rl_mark < rl_end)) + rl_mark++; + + rl_kill_text (rl_point, rl_mark); + return (0); +} + +rl_vi_change_to (count, key) + int count, key; +{ + int c, start_pos; + + if (uppercase_p (key)) + rl_stuff_char ('$'); + else if (vi_redoing) + rl_stuff_char (_rl_vi_last_motion); + + start_pos = rl_point; + + if (rl_vi_domove (key, &c)) + { + ding (); + return -1; + } + + /* These are the motion commands that do not require adjusting the + mark. c[wW] are handled by special-case code in rl_vi_domove(), + and already leave the mark at the correct location. */ + if ((strchr (" l|hwW^0bB", c) == 0) && (rl_mark < rl_end)) + rl_mark++; + + /* The cursor never moves with c[wW]. */ + if ((to_upper (c) == 'W') && rl_point < start_pos) + rl_point = start_pos; + + rl_kill_text (rl_point, rl_mark); + + rl_begin_undo_group (); + _rl_vi_doing_insert = 1; + _rl_vi_set_last (key, count, rl_arg_sign); + rl_vi_insertion_mode (1, key); + + return (0); +} + +rl_vi_yank_to (count, key) + int count, key; +{ + int c, save = rl_point; + + if (uppercase_p (key)) + rl_stuff_char ('$'); + + if (rl_vi_domove (key, &c)) + { + ding (); + return -1; + } + + /* These are the motion commands that do not require adjusting the + mark. */ + if ((strchr (" l|h^0%bB", c) == 0) && (rl_mark < rl_end)) + rl_mark++; + + rl_begin_undo_group (); + rl_kill_text (rl_point, rl_mark); + rl_end_undo_group (); + rl_do_undo (); + rl_point = save; + + return (0); +} + +rl_vi_delete (count, key) + int count, key; +{ + int end; + + if (rl_end == 0) + { + ding (); + return -1; + } + + end = rl_point + count; + + if (end >= rl_end) + end = rl_end; + + rl_kill_text (rl_point, end); + + if (rl_point > 0 && rl_point == rl_end) + rl_backward (1); + return (0); +} + +/* Turn the current line into a comment in shell history. + A K*rn shell style function. */ +rl_vi_comment (count, key) + int count, key; +{ + rl_beg_of_line (); + + if (rl_vi_comment_begin != (char *)NULL) + rl_insert_text (rl_vi_comment_begin); + else + rl_insert_text (VI_COMMENT_BEGIN_DEFAULT); /* Default. */ + + rl_redisplay (); + rl_newline (1, '\n'); + return (0); +} + +rl_vi_first_print (count, key) + int count, key; +{ + return (rl_back_to_indent ()); +} + +rl_back_to_indent (ignore1, ignore2) + int ignore1, ignore2; +{ + rl_beg_of_line (); + while (rl_point < rl_end && whitespace (rl_line_buffer[rl_point])) + rl_point++; + return (0); +} + +/* NOTE: it is necessary that opposite directions are inverses */ +#define FTO 1 /* forward to */ +#define BTO -1 /* backward to */ +#define FFIND 2 /* forward find */ +#define BFIND -2 /* backward find */ + +rl_vi_char_search (count, key) + int count, key; +{ + static char target; + static int orig_dir, dir; + int pos; + + if (key == ';' || key == ',') + dir = (key == ';' ? orig_dir : -orig_dir); + else + { + if (vi_redoing) + target = _rl_vi_last_search_char; + else + _rl_vi_last_search_char = target = rl_getc (rl_instream); + + switch (key) + { + case 't': + orig_dir = dir = FTO; + break; + + case 'T': + orig_dir = dir = BTO; + break; + + case 'f': + orig_dir = dir = FFIND; + break; + + case 'F': + orig_dir = dir = BFIND; + break; + } + } + + pos = rl_point; + + while (count--) + { + if (dir < 0) + { + if (pos == 0) + { + ding (); + return -1; + } + + pos--; + do + { + if (rl_line_buffer[pos] == target) + { + if (dir == BTO) + rl_point = pos + 1; + else + rl_point = pos; + break; + } + } + while (pos--); + + if (pos < 0) + { + ding (); + return -1; + } + } + else + { /* dir > 0 */ + if (pos >= rl_end) + { + ding (); + return -1; + } + + pos++; + do + { + if (rl_line_buffer[pos] == target) + { + if (dir == FTO) + rl_point = pos - 1; + else + rl_point = pos; + break; + } + } + while (++pos < rl_end); + + if (pos >= (rl_end - 1)) + { + ding (); + return -1; + } + } + } + return (0); +} + +/* Match brackets */ +rl_vi_match (ignore, key) + int ignore, key; +{ + int count = 1, brack, pos; + + pos = rl_point; + if ((brack = rl_vi_bracktype (rl_line_buffer[rl_point])) == 0) + { + while ((brack = rl_vi_bracktype (rl_line_buffer[rl_point])) == 0 && + rl_point < rl_end - 1) + rl_forward (1); + + if (brack <= 0) + { + rl_point = pos; + ding (); + return -1; + } + } + + pos = rl_point; + + if (brack < 0) + { + while (count) + { + if (--pos >= 0) + { + int b = rl_vi_bracktype (rl_line_buffer[pos]); + if (b == -brack) + count--; + else if (b == brack) + count++; + } + else + { + ding (); + return -1; + } + } + } + else + { /* brack > 0 */ + while (count) + { + if (++pos < rl_end) + { + int b = rl_vi_bracktype (rl_line_buffer[pos]); + if (b == -brack) + count--; + else if (b == brack) + count++; + } + else + { + ding (); + return -1; + } + } + } + rl_point = pos; + return (0); +} + +int +rl_vi_bracktype (c) + int c; +{ + switch (c) + { + case '(': return 1; + case ')': return -1; + case '[': return 2; + case ']': return -2; + case '{': return 3; + case '}': return -3; + default: return 0; + } +} + +rl_vi_change_char (count, key) + int count, key; +{ + int c; + + if (vi_redoing) + c = _rl_vi_last_replacement; + else + _rl_vi_last_replacement = c = rl_getc (rl_instream); + + if (c == '\033' || c == CTRL ('C')) + return -1; + + while (count-- && rl_point < rl_end) + { + rl_begin_undo_group (); + + rl_delete (1, c); + rl_insert (1, c); + if (count == 0) + rl_backward (1); + + rl_end_undo_group (); + } + return (0); +} + +rl_vi_subst (count, key) + int count, key; +{ + rl_begin_undo_group (); + + if (uppercase_p (key)) + { + rl_beg_of_line (); + rl_kill_line (1); + } + else + rl_delete_text (rl_point, rl_point+count); + + rl_end_undo_group (); + + _rl_vi_set_last (key, count, rl_arg_sign); + + rl_begin_undo_group (); + _rl_vi_doing_insert = 1; + rl_vi_insertion_mode (1, key); + + return (0); +} + +rl_vi_overstrike (count, key) + int count, key; +{ + int i; + + if (_rl_vi_doing_insert == 0) + { + _rl_vi_doing_insert = 1; + rl_begin_undo_group (); + } + + for (i = 0; i < count; i++) + { + vi_replace_count++; + rl_begin_undo_group (); + + if (rl_point < rl_end) + { + rl_delete (1, key); + rl_insert (1, key); + } + else + rl_insert (1, key); + + rl_end_undo_group (); + } + return (0); +} + +rl_vi_overstrike_delete (count) + int count; +{ + int i, s; + + for (i = 0; i < count; i++) + { + if (vi_replace_count == 0) + { + ding (); + break; + } + s = rl_point; + + if (rl_do_undo ()) + vi_replace_count--; + + if (rl_point == s) + rl_backward (1); + } + + if (vi_replace_count == 0 && _rl_vi_doing_insert) + { + rl_end_undo_group (); + rl_do_undo (); + _rl_vi_doing_insert = 0; + } + return (0); +} + +rl_vi_replace (count, key) + int count, key; +{ + int i; + + vi_replace_count = 0; + + if (!vi_replace_map) + { + vi_replace_map = rl_make_bare_keymap (); + + for (i = ' '; i < KEYMAP_SIZE; i++) + vi_replace_map[i].function = rl_vi_overstrike; + + vi_replace_map[RUBOUT].function = rl_vi_overstrike_delete; + vi_replace_map[ESC].function = rl_vi_movement_mode; + vi_replace_map[RETURN].function = rl_newline; + vi_replace_map[NEWLINE].function = rl_newline; + + /* If the normal vi insertion keymap has ^H bound to erase, do the + same here. Probably should remove the assignment to RUBOUT up + there, but I don't think it will make a difference in real life. */ + if (vi_insertion_keymap[CTRL ('H')].type == ISFUNC && + vi_insertion_keymap[CTRL ('H')].function == rl_rubout) + vi_replace_map[CTRL ('H')].function = rl_vi_overstrike_delete; + + } + _rl_keymap = vi_replace_map; + return (0); +} + +#if 0 +/* Try to complete the word we are standing on or the word that ends with + the previous character. A space matches everything. Word delimiters are + space and ;. */ +rl_vi_possible_completions() +{ + int save_pos = rl_point; + + if (rl_line_buffer[rl_point] != ' ' && rl_line_buffer[rl_point] != ';') + { + while (rl_point < rl_end && rl_line_buffer[rl_point] != ' ' && + rl_line_buffer[rl_point] != ';') + rl_point++; + } + else if (rl_line_buffer[rl_point - 1] == ';') + { + ding (); + return (0); + } + + rl_possible_completions (); + rl_point = save_pos; + + return (0); +} +#endif + +#if defined (STATIC_MALLOC) + +/* **************************************************************** */ +/* */ +/* xmalloc and xrealloc () */ +/* */ +/* **************************************************************** */ + +static void memory_error_and_abort (); + +static char * +xmalloc (bytes) + int bytes; +{ + char *temp = (char *)malloc (bytes); + + if (!temp) + memory_error_and_abort (); + return (temp); +} + +static char * +xrealloc (pointer, bytes) + char *pointer; + int bytes; +{ + char *temp; + + if (!pointer) + temp = (char *)xmalloc (bytes); + else + temp = (char *)realloc (pointer, bytes); + + if (!temp) + memory_error_and_abort (); + + return (temp); +} + +static void +memory_error_and_abort () +{ + fprintf (stderr, "readline: Out of virtual memory!\n"); + abort (); +} +#endif /* STATIC_MALLOC */ + +#endif /* VI_MODE */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readline/xmalloc.c Tue Sep 19 07:21:00 1995 +0000 @@ -0,0 +1,78 @@ +/* xmalloc.c -- safe versions of malloc and realloc */ + +/* Copyright (C) 1991 Free Software Foundation, Inc. + + This file is part of GNU Readline, a library for reading lines + of text with interactive input and history editing. + + Readline is free software; you can redistribute it and/or modify it + under the terms of the GNU General Public License as published by the + Free Software Foundation; either version 1, or (at your option) any + later version. + + Readline is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public License + along with Readline; see the file COPYING. If not, write to the Free + Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#if defined (ALREADY_HAVE_XMALLOC) +#else +#include <stdio.h> + +#if defined (HAVE_STDLIB_H) +# include <stdlib.h> +#else +# include "ansi_stdlib.h" +#endif /* HAVE_STDLIB_H */ + +static void memory_error_and_abort (); + +/* **************************************************************** */ +/* */ +/* Memory Allocation and Deallocation. */ +/* */ +/* **************************************************************** */ + +/* Return a pointer to free()able block of memory large enough + to hold BYTES number of bytes. If the memory cannot be allocated, + print an error message and abort. */ +char * +xmalloc (bytes) + int bytes; +{ + char *temp = (char *)malloc (bytes); + + if (!temp) + memory_error_and_abort ("xmalloc"); + return (temp); +} + +char * +xrealloc (pointer, bytes) + char *pointer; + int bytes; +{ + char *temp; + + if (!pointer) + temp = (char *)malloc (bytes); + else + temp = (char *)realloc (pointer, bytes); + + if (!temp) + memory_error_and_abort ("xrealloc"); + return (temp); +} + +static void +memory_error_and_abort (fname) + char *fname; +{ + fprintf (stderr, "%s: Out of virtual memory!\n", fname); + abort (); +} +#endif /* !ALREADY_HAVE_XMALLOC */