octave: libinterp/parse-tree/lex.ll annotate

annotate libinterp/parse-tree/lex.ll @ 28522:a5541f5a78dd

make parsing of spmd and endspmd keywords work properly (bug #58676) * lex.ll (base_lexer::make_keyword_token): Enable lines left commented out in changeset 6e8a9845d118. Now the spmd and endspmd keywords will be recognized properly and return the correct tokens. * oct-parse.yy (base_parser::make_spmd_command): Fix copy/paste error from changeset b8ab8b58547d so that END token checking will work properly.

author	John W. Eaton <jwe@octave.org>
date	Wed, 01 Jul 2020 13:18:19 -0400
parents	6e8a9845d118
children	0ecec070c086

rev	line source
1994 c2d20f365b84 [project @ 1996-03-03 01:19:32 by jwe] jwe parents: 1884 diff changeset	1 /*
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2
27923 bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	3 We are using the pure parser interface and the reentrant lexer interface
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	4 but the Octave parser and lexer are NOT properly reentrant because both
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	5 still use many global variables. It should be safe to create a parser
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	6 object and call it while another parser object is active (to parse a
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	7 callback function while the main interactive parser is waiting for
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	8 input, for example) if you take care to properly save and restore
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	9 (typically with an unwind_protect object) relevant global values before
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	10 and after the nested call.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	11
16150 891a2a4df71f * lex.ll: Use C-style comments in preamble. John W. Eaton <jwe@octave.org> parents: 16149 diff changeset	12 */
16149 49dfba4fd3c5 use pure parser and reentrant lexer interfaces John W. Eaton <jwe@octave.org> parents: 16148 diff changeset	13
21023 ec532a439c6f rework method of disabling warnings from GCC John W. Eaton <jwe@octave.org> parents: 20957 diff changeset	14 %top {
27923 bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	15 ////////////////////////////////////////////////////////////////////////
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	16 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	17 // Copyright (C) 1993-2020 The Octave Project Developers
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	18 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	19 // See the file COPYRIGHT.md in the top-level directory of this
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	20 // distribution or <https://octave.org/copyright/>.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	21 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	22 // This file is part of Octave.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	23 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	24 // Octave is free software: you can redistribute it and/or modify it
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	25 // under the terms of the GNU General Public License as published by
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	26 // the Free Software Foundation, either version 3 of the License, or
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	27 // (at your option) any later version.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	28 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	29 // Octave is distributed in the hope that it will be useful, but
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	30 // WITHOUT ANY WARRANTY; without even the implied warranty of
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	31 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	32 // GNU General Public License for more details.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	33 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	34 // You should have received a copy of the GNU General Public License
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	35 // along with Octave; see the file COPYING. If not, see
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	36 // <https://www.gnu.org/licenses/>.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	37 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	38 ////////////////////////////////////////////////////////////////////////
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	39
21724 aba2e6293dd8 use "#if ..." consistently instead of "#ifdef" and "#ifndef" John W. Eaton <jwe@octave.org> parents: 21722 diff changeset	40 #if defined (HAVE_CONFIG_H)
22003 2d3972b802ff use consistent style for including config.h in source files John W. Eaton <jwe@octave.org> parents: 21987 diff changeset	41 # include "config.h"
21023 ec532a439c6f rework method of disabling warnings from GCC John W. Eaton <jwe@octave.org> parents: 20957 diff changeset	42 #endif
ec532a439c6f rework method of disabling warnings from GCC John W. Eaton <jwe@octave.org> parents: 20957 diff changeset	43
ec532a439c6f rework method of disabling warnings from GCC John W. Eaton <jwe@octave.org> parents: 20957 diff changeset	44 #if defined (HAVE_PRAGMA_GCC_DIAGNOSTIC)
24444 53ca76c5cc8d maint: Indent pragmas as other preprocessor directives. John W. Eaton <jwe@octave.org> parents: 24387 diff changeset	45 // This one needs to be global.
53ca76c5cc8d maint: Indent pragmas as other preprocessor directives. John W. Eaton <jwe@octave.org> parents: 24387 diff changeset	46 # pragma GCC diagnostic ignored "-Wunused-function"
53ca76c5cc8d maint: Indent pragmas as other preprocessor directives. John W. Eaton <jwe@octave.org> parents: 24387 diff changeset	47 // Disable these warnings for code that is generated by flex,
53ca76c5cc8d maint: Indent pragmas as other preprocessor directives. John W. Eaton <jwe@octave.org> parents: 24387 diff changeset	48 // including pattern rules. Push the current state so we can
53ca76c5cc8d maint: Indent pragmas as other preprocessor directives. John W. Eaton <jwe@octave.org> parents: 24387 diff changeset	49 // restore the warning state prior to functions we define at
53ca76c5cc8d maint: Indent pragmas as other preprocessor directives. John W. Eaton <jwe@octave.org> parents: 24387 diff changeset	50 // the bottom of the file.
53ca76c5cc8d maint: Indent pragmas as other preprocessor directives. John W. Eaton <jwe@octave.org> parents: 24387 diff changeset	51 # pragma GCC diagnostic push
53ca76c5cc8d maint: Indent pragmas as other preprocessor directives. John W. Eaton <jwe@octave.org> parents: 24387 diff changeset	52 # pragma GCC diagnostic ignored "-Wold-style-cast"
53ca76c5cc8d maint: Indent pragmas as other preprocessor directives. John W. Eaton <jwe@octave.org> parents: 24387 diff changeset	53 # pragma GCC diagnostic ignored "-Wsign-compare"
53ca76c5cc8d maint: Indent pragmas as other preprocessor directives. John W. Eaton <jwe@octave.org> parents: 24387 diff changeset	54 # pragma GCC diagnostic ignored "-Wzero-as-null-pointer-constant"
24445 fe54e9633815 lex.ll: Fix macro for implicit fallthrough warning. John W. Eaton <jwe@octave.org> parents: 24444 diff changeset	55 # if defined (HAVE_WARN_IMPLICIT_FALLTHROUGH)
24444 53ca76c5cc8d maint: Indent pragmas as other preprocessor directives. John W. Eaton <jwe@octave.org> parents: 24387 diff changeset	56 # pragma GCC diagnostic ignored "-Wimplicit-fallthrough"
53ca76c5cc8d maint: Indent pragmas as other preprocessor directives. John W. Eaton <jwe@octave.org> parents: 24387 diff changeset	57 # endif
21023 ec532a439c6f rework method of disabling warnings from GCC John W. Eaton <jwe@octave.org> parents: 20957 diff changeset	58 #endif
ec532a439c6f rework method of disabling warnings from GCC John W. Eaton <jwe@octave.org> parents: 20957 diff changeset	59
21332 db574711df78 eliminate deprecated register storage class specifier John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	60 // Define away the deprecated register storage class specifier to avoid
db574711df78 eliminate deprecated register storage class specifier John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	61 // potential warnings about it.
db574711df78 eliminate deprecated register storage class specifier John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	62 #if ! defined (register)
21724 aba2e6293dd8 use "#if ..." consistently instead of "#ifdef" and "#ifndef" John W. Eaton <jwe@octave.org> parents: 21722 diff changeset	63 # define register
21332 db574711df78 eliminate deprecated register storage class specifier John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	64 #endif
db574711df78 eliminate deprecated register storage class specifier John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	65
21023 ec532a439c6f rework method of disabling warnings from GCC John W. Eaton <jwe@octave.org> parents: 20957 diff changeset	66 }
ec532a439c6f rework method of disabling warnings from GCC John W. Eaton <jwe@octave.org> parents: 20957 diff changeset	67
4753 9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	68 %option prefix = "octave_"
16146 b6050fc0a2d9 use %option noyywrap John W. Eaton <jwe@octave.org> parents: 16139 diff changeset	69 %option noyywrap
16149 49dfba4fd3c5 use pure parser and reentrant lexer interfaces John W. Eaton <jwe@octave.org> parents: 16148 diff changeset	70 %option reentrant
49dfba4fd3c5 use pure parser and reentrant lexer interfaces John W. Eaton <jwe@octave.org> parents: 16148 diff changeset	71 %option bison-bridge
4753 9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	72
19784 a3577622952c avoid some GCC unused parameter warnings John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	73 %option noyyalloc
a3577622952c avoid some GCC unused parameter warnings John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	74 %option noyyrealloc
a3577622952c avoid some GCC unused parameter warnings John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	75 %option noyyfree
a3577622952c avoid some GCC unused parameter warnings John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	76
18234 af8a70d6885c improve command parsing Michael C. Grant <mcg@cvxr.com> parents: 18231 diff changeset	77 %x COMMAND_START
4208 e96f52432059 [project @ 2002-12-03 19:48:57 by jwe] jwe parents: 4198 diff changeset	78 %s MATRIX_START
4240 8627d992beb8 [project @ 2002-12-25 23:07:03 by jwe] jwe parents: 4238 diff changeset	79
16224 4a848eb52de2 use stack for tracking lexer start states John W. Eaton <jwe@octave.org> parents: 16209 diff changeset	80 %x INPUT_FILE_START
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	81
16228 e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	82 %x BLOCK_COMMENT_START
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	83 %x LINE_COMMENT_START
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	84
16898 531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	85 %x DQ_STRING_START
531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	86 %x SQ_STRING_START
531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	87
18520 932aca9a7c57 Allow multi-level classdef package. Michael Goffioul <michael.goffioul@gmail.com> parents: 18497 diff changeset	88 %x FQ_IDENT_START
932aca9a7c57 Allow multi-level classdef package. Michael Goffioul <michael.goffioul@gmail.com> parents: 18497 diff changeset	89
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	90 %{
240 a99f28f5e351 [project @ 1993-11-30 20:24:36 by jwe] jwe parents: 216 diff changeset	91
1341 e4e4131b1648 [project @ 1995-09-04 00:13:33 by jwe] jwe parents: 1315 diff changeset	92 #include <cctype>
e4e4131b1648 [project @ 1995-09-04 00:13:33 by jwe] jwe parents: 1315 diff changeset	93 #include <cstring>
e4e4131b1648 [project @ 1995-09-04 00:13:33 by jwe] jwe parents: 1315 diff changeset	94
8950 d865363208d6 include <iosfwd> instead of <iostream> in header files John W. Eaton <jwe@octave.org> parents: 8920 diff changeset	95 #include <iostream>
8001 ff9e7873f8ea improve handling of command-style names in matrix_or_assign_lhs context John W. Eaton <jwe@octave.org> parents: 7898 diff changeset	96 #include <set>
5765 7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe] jwe parents: 5615 diff changeset	97 #include <sstream>
1823 5cdd59e7579a [project @ 1996-02-01 12:45:05 by jwe] jwe parents: 1755 diff changeset	98 #include <string>
4214 b9317f3973ec [project @ 2002-12-04 04:57:01 by jwe] jwe parents: 4208 diff changeset	99 #include <stack>
1823 5cdd59e7579a [project @ 1996-02-01 12:45:05 by jwe] jwe parents: 1755 diff changeset	100
2926 66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe] jwe parents: 2900 diff changeset	101 #include "cmd-edit.h"
21910 4d723ba06b4a provide wrappers for some unistd.h functions John W. Eaton <jwe@octave.org> parents: 21814 diff changeset	102 #include "lo-mappers.h"
4153 6b96ce9f5743 [project @ 2002-11-06 20:38:49 by jwe] jwe parents: 4131 diff changeset	103 #include "quit.h"
21910 4d723ba06b4a provide wrappers for some unistd.h functions John W. Eaton <jwe@octave.org> parents: 21814 diff changeset	104 #include "unistd-wrappers.h"
2926 66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe] jwe parents: 2900 diff changeset	105
16154 aa5e1e8dce66 * lex.ll: Change y.tab.h to oct-parse.h in comment. John W. Eaton <jwe@octave.org> parents: 16150 diff changeset	106 // These would be alphabetical, but oct-parse.h must be included before
aa5e1e8dce66 * lex.ll: Change y.tab.h to oct-parse.h in comment. John W. Eaton <jwe@octave.org> parents: 16150 diff changeset	107 // oct-gperf.h and oct-parse.h must be included after token.h and the tree
aa5e1e8dce66 * lex.ll: Change y.tab.h to oct-parse.h in comment. John W. Eaton <jwe@octave.org> parents: 16150 diff changeset	108 // class declarations. We can't include oct-parse.h in oct-gperf.h
1497 48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe] jwe parents: 1489 diff changeset	109 // because it may not be protected to allow it to be included multiple
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe] jwe parents: 1489 diff changeset	110 // times.
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe] jwe parents: 1489 diff changeset	111
4264 4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe] jwe parents: 4248 diff changeset	112 #include "Cell.h"
2181 138b3c98dc85 [project @ 1996-05-13 18:02:31 by jwe] jwe parents: 2167 diff changeset	113 #include "defun.h"
1355 94697d007075 [project @ 1995-09-05 20:04:15 by jwe] jwe parents: 1351 diff changeset	114 #include "error.h"
21100 e39e05d90788 Switch gripe_XXX to either err_XXX or warn_XXX naming scheme. Rik <rik@octave.org> parents: 21074 diff changeset	115 #include "errwarn.h"
1351 8256c4c57419 [project @ 1995-09-05 08:02:08 by jwe] jwe parents: 1341 diff changeset	116 #include "input.h"
22094 9203833cab7d move new interpreter class to separate file John W. Eaton <jwe@octave.org> parents: 22089 diff changeset	117 #include "interpreter.h"
1355 94697d007075 [project @ 1995-09-05 20:04:15 by jwe] jwe parents: 1351 diff changeset	118 #include "lex.h"
22089 c2c668b3051b use classes for octave application and interpreter John W. Eaton <jwe@octave.org> parents: 22003 diff changeset	119 #include "octave.h"
2891 1a30f46e1870 [project @ 1997-04-28 01:49:00 by jwe] jwe parents: 2877 diff changeset	120 #include "ov.h"
1355 94697d007075 [project @ 1995-09-05 20:04:15 by jwe] jwe parents: 1351 diff changeset	121 #include "parse.h"
2987 ae20b3f37f5e [project @ 1997-05-16 07:05:15 by jwe] jwe parents: 2982 diff changeset	122 #include "pt-all.h"
2891 1a30f46e1870 [project @ 1997-04-28 01:49:00 by jwe] jwe parents: 2877 diff changeset	123 #include "symtab.h"
1a30f46e1870 [project @ 1997-04-28 01:49:00 by jwe] jwe parents: 2877 diff changeset	124 #include "token.h"
1355 94697d007075 [project @ 1995-09-05 20:04:15 by jwe] jwe parents: 1351 diff changeset	125 #include "utils.h"
94697d007075 [project @ 1995-09-05 20:04:15 by jwe] jwe parents: 1351 diff changeset	126 #include "variables.h"
23479 06bf3a0b08bf maint: Use "" instead of <> for our own include files. John W. Eaton <jwe@octave.org> parents: 23220 diff changeset	127 #include "oct-parse.h"
06bf3a0b08bf maint: Use "" instead of <> for our own include files. John W. Eaton <jwe@octave.org> parents: 23220 diff changeset	128 #include "oct-gperf.h"
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	129
18974 d8abf813c69f handle changes in bison 3.x John W. Eaton <jwe@octave.org> parents: 18774 diff changeset	130 // FIXME: with bison 3.x, OCTAVE_STYPE appears in the generated
d8abf813c69f handle changes in bison 3.x John W. Eaton <jwe@octave.org> parents: 18774 diff changeset	131 // oct-parse.h file, but there is no definition for YYSTYPE, which is
d8abf813c69f handle changes in bison 3.x John W. Eaton <jwe@octave.org> parents: 18774 diff changeset	132 // needed by the code that is generated by flex. I can't seem to find a
d8abf813c69f handle changes in bison 3.x John W. Eaton <jwe@octave.org> parents: 18774 diff changeset	133 // way to tell flex to use OCTAVE_STYPE instead of YYSTYPE in the code
d8abf813c69f handle changes in bison 3.x John W. Eaton <jwe@octave.org> parents: 18774 diff changeset	134 // it generates, or to tell bison to provide the definition of YYSTYPE
d8abf813c69f handle changes in bison 3.x John W. Eaton <jwe@octave.org> parents: 18774 diff changeset	135 // in the generated oct-parse.h file.
d8abf813c69f handle changes in bison 3.x John W. Eaton <jwe@octave.org> parents: 18774 diff changeset	136
d8abf813c69f handle changes in bison 3.x John W. Eaton <jwe@octave.org> parents: 18774 diff changeset	137 #if defined (OCTAVE_STYPE_IS_DECLARED) && ! defined YYSTYPE
21724 aba2e6293dd8 use "#if ..." consistently instead of "#ifdef" and "#ifndef" John W. Eaton <jwe@octave.org> parents: 21722 diff changeset	138 # define YYSTYPE OCTAVE_STYPE
18974 d8abf813c69f handle changes in bison 3.x John W. Eaton <jwe@octave.org> parents: 18774 diff changeset	139 #endif
d8abf813c69f handle changes in bison 3.x John W. Eaton <jwe@octave.org> parents: 18774 diff changeset	140
21910 4d723ba06b4a provide wrappers for some unistd.h functions John W. Eaton <jwe@octave.org> parents: 21814 diff changeset	141 #define YY_NO_UNISTD_H 1
4d723ba06b4a provide wrappers for some unistd.h functions John W. Eaton <jwe@octave.org> parents: 21814 diff changeset	142 #define isatty octave_isatty_wrapper
4d723ba06b4a provide wrappers for some unistd.h functions John W. Eaton <jwe@octave.org> parents: 21814 diff changeset	143
22197 e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	144 #if ! (defined (FLEX_SCANNER) \
2716 2b5c27299cde [project @ 1997-02-22 08:40:55 by jwe] jwe parents: 2702 diff changeset	145 && defined (YY_FLEX_MAJOR_VERSION) && YY_FLEX_MAJOR_VERSION >= 2 \
2b5c27299cde [project @ 1997-02-22 08:40:55 by jwe] jwe parents: 2702 diff changeset	146 && defined (YY_FLEX_MINOR_VERSION) && YY_FLEX_MINOR_VERSION >= 5)
2b5c27299cde [project @ 1997-02-22 08:40:55 by jwe] jwe parents: 2702 diff changeset	147 #error lex.l requires flex version 2.5.4 or later
2b5c27299cde [project @ 1997-02-22 08:40:55 by jwe] jwe parents: 2702 diff changeset	148 #endif
2b5c27299cde [project @ 1997-02-22 08:40:55 by jwe] jwe parents: 2702 diff changeset	149
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	150 #define YY_EXTRA_TYPE octave::base_lexer *
16149 49dfba4fd3c5 use pure parser and reentrant lexer interfaces John W. Eaton <jwe@octave.org> parents: 16148 diff changeset	151 #define curr_lexer yyextra
4753 9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	152
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	153 // Arrange to get input via readline.
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	154
21724 aba2e6293dd8 use "#if ..." consistently instead of "#ifdef" and "#ifndef" John W. Eaton <jwe@octave.org> parents: 21722 diff changeset	155 #if defined (YY_INPUT)
aba2e6293dd8 use "#if ..." consistently instead of "#ifdef" and "#ifndef" John W. Eaton <jwe@octave.org> parents: 21722 diff changeset	156 # undef YY_INPUT
4753 9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	157 #endif
22197 e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	158 #define YY_INPUT(buf, result, max_size) \
16293 57e87ddfee14 create base class for lexer John W. Eaton <jwe@octave.org> parents: 16292 diff changeset	159 result = curr_lexer->fill_flex_buffer (buf, max_size)
4753 9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	160
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	161 // Try to avoid crashing out completely on fatal scanner errors.
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	162
21724 aba2e6293dd8 use "#if ..." consistently instead of "#ifdef" and "#ifndef" John W. Eaton <jwe@octave.org> parents: 21722 diff changeset	163 #if defined (YY_FATAL_ERROR)
aba2e6293dd8 use "#if ..." consistently instead of "#ifdef" and "#ifndef" John W. Eaton <jwe@octave.org> parents: 21722 diff changeset	164 # undef YY_FATAL_ERROR
4753 9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	165 #endif
22197 e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	166 #define YY_FATAL_ERROR(msg) \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	167 (yyget_extra (yyscanner))->fatal_error (msg)
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	168
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	169 #define CMD_OR_OP(PATTERN, TOK, COMPAT) \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	170 do \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	171 { \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	172 curr_lexer->lexer_debug (PATTERN); \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	173 \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	174 if (curr_lexer->looks_like_command_arg ()) \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	175 { \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	176 yyless (0); \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	177 curr_lexer->push_start_state (COMMAND_START); \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	178 } \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	179 else \
28149 026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	180 return curr_lexer->handle_op (TOK, false, COMPAT); \
22197 e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	181 } \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	182 while (0)
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	183
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	184 #define CMD_OR_COMPUTED_ASSIGN_OP(PATTERN, TOK) \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	185 do \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	186 { \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	187 curr_lexer->lexer_debug (PATTERN); \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	188 \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	189 if (curr_lexer->previous_token_may_be_command () \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	190 && curr_lexer->space_follows_previous_token ()) \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	191 { \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	192 yyless (0); \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	193 curr_lexer->push_start_state (COMMAND_START); \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	194 } \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	195 else \
28149 026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	196 return curr_lexer->handle_op (TOK, false, false); \
22197 e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	197 } \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	198 while (0)
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	199
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	200 #define CMD_OR_UNARY_OP(PATTERN, TOK, COMPAT) \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	201 do \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	202 { \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	203 curr_lexer->lexer_debug (PATTERN); \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	204 \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	205 if (curr_lexer->previous_token_may_be_command ()) \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	206 { \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	207 if (curr_lexer->looks_like_command_arg ()) \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	208 { \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	209 yyless (0); \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	210 curr_lexer->push_start_state (COMMAND_START); \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	211 } \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	212 else \
28149 026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	213 return curr_lexer->handle_op (TOK, false, COMPAT); \
22197 e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	214 } \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	215 else \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	216 { \
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	217 if (curr_lexer->maybe_unput_comma_before_unary_op (TOK)) \
22197 e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	218 { \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	219 yyless (0); \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	220 curr_lexer->xunput (','); \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	221 } \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	222 else \
28149 026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	223 return curr_lexer->handle_op (TOK, false, COMPAT); \
22197 e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	224 } \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	225 } \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	226 while (0)
16275 dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	227
28147 648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	228 #define HANDLE_EOB_OR_EOF(STATUS) \
648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	229 do \
648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	230 { \
648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	231 if (curr_lexer->is_push_lexer ()) \
648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	232 { \
648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	233 if (curr_lexer->at_end_of_buffer ()) \
648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	234 return STATUS; \
648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	235 \
648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	236 if (curr_lexer->at_end_of_file ()) \
648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	237 return curr_lexer->handle_end_of_input (); \
648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	238 } \
648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	239 } \
648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	240 while (0)
648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	241
648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	242 // If we are at the end of the buffer, ask for more input.
648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	243 // If we are at the end of the file, deal with it.
648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	244 // Otherwise, just keep going with the text from the current buffer.
22197 e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	245 #define HANDLE_STRING_CONTINUATION \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	246 do \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	247 { \
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	248 curr_lexer->m_filepos.next_line (); \
22197 e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	249 \
28147 648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	250 HANDLE_EOB_OR_EOF (-1); \
22197 e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	251 } \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	252 while (0)
16914 bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	253
22197 e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	254 #define HANDLE_IDENTIFIER(pattern, get_set) \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	255 do \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	256 { \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	257 curr_lexer->lexer_debug (pattern); \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	258 \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	259 int tok = curr_lexer->previous_token_value (); \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	260 \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	261 if (curr_lexer->whitespace_is_significant () \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	262 && curr_lexer->space_follows_previous_token () \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	263 && ! (tok == '[' \|\| tok == '{' \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	264 \|\| curr_lexer->previous_token_is_binop ())) \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	265 { \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	266 yyless (0); \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	267 unput (','); \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	268 } \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	269 else \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	270 { \
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	271 if (! curr_lexer->m_looking_at_decl_list \
22197 e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	272 && curr_lexer->previous_token_may_be_command ()) \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	273 { \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	274 yyless (0); \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	275 curr_lexer->push_start_state (COMMAND_START); \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	276 } \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	277 else \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	278 { \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	279 if (get_set) \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	280 { \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	281 yyless (3); \
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	282 curr_lexer->m_filepos.increment_column (3); \
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	283 curr_lexer->m_maybe_classdef_get_set_method = false; \
22197 e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	284 } \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	285 \
28149 026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	286 return curr_lexer->handle_identifier (); \
22197 e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	287 } \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	288 } \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	289 } \
e43d83253e28 refill multi-line macro definitions John W. Eaton <jwe@octave.org> parents: 22196 diff changeset	290 while (0)
16914 bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	291
26710 d6dd07dce2d2 use inline functions for matching whitespace in lexer John W. Eaton <jwe@octave.org> parents: 26709 diff changeset	292 static inline bool
d6dd07dce2d2 use inline functions for matching whitespace in lexer John W. Eaton <jwe@octave.org> parents: 26709 diff changeset	293 is_space_or_tab (char c)
d6dd07dce2d2 use inline functions for matching whitespace in lexer John W. Eaton <jwe@octave.org> parents: 26709 diff changeset	294 {
d6dd07dce2d2 use inline functions for matching whitespace in lexer John W. Eaton <jwe@octave.org> parents: 26709 diff changeset	295 return c == ' ' \|\| c == '\t';
d6dd07dce2d2 use inline functions for matching whitespace in lexer John W. Eaton <jwe@octave.org> parents: 26709 diff changeset	296 }
d6dd07dce2d2 use inline functions for matching whitespace in lexer John W. Eaton <jwe@octave.org> parents: 26709 diff changeset	297
d6dd07dce2d2 use inline functions for matching whitespace in lexer John W. Eaton <jwe@octave.org> parents: 26709 diff changeset	298 static inline bool
d6dd07dce2d2 use inline functions for matching whitespace in lexer John W. Eaton <jwe@octave.org> parents: 26709 diff changeset	299 is_space_or_tab_or_eol (char c)
d6dd07dce2d2 use inline functions for matching whitespace in lexer John W. Eaton <jwe@octave.org> parents: 26709 diff changeset	300 {
d6dd07dce2d2 use inline functions for matching whitespace in lexer John W. Eaton <jwe@octave.org> parents: 26709 diff changeset	301 return c == ' ' \|\| c == '\t' \|\| c == '\n' \|\| c == '\r';
d6dd07dce2d2 use inline functions for matching whitespace in lexer John W. Eaton <jwe@octave.org> parents: 26709 diff changeset	302 }
d6dd07dce2d2 use inline functions for matching whitespace in lexer John W. Eaton <jwe@octave.org> parents: 26709 diff changeset	303
28156 22cddebcb0d0 allow @get and @set to work properly again (bug #57988) John W. Eaton <jwe@octave.org> parents: 28149 diff changeset	304 namespace octave
22cddebcb0d0 allow @get and @set to work properly again (bug #57988) John W. Eaton <jwe@octave.org> parents: 28149 diff changeset	305 {
22cddebcb0d0 allow @get and @set to work properly again (bug #57988) John W. Eaton <jwe@octave.org> parents: 28149 diff changeset	306 bool iskeyword (const std::string& s)
22cddebcb0d0 allow @get and @set to work properly again (bug #57988) John W. Eaton <jwe@octave.org> parents: 28149 diff changeset	307 {
22cddebcb0d0 allow @get and @set to work properly again (bug #57988) John W. Eaton <jwe@octave.org> parents: 28149 diff changeset	308 // Parsing function names like "set.property_name" inside
22cddebcb0d0 allow @get and @set to work properly again (bug #57988) John W. Eaton <jwe@octave.org> parents: 28149 diff changeset	309 // classdef-style class definitions is simplified by handling the
22cddebcb0d0 allow @get and @set to work properly again (bug #57988) John W. Eaton <jwe@octave.org> parents: 28149 diff changeset	310 // "set" and "get" portions of the names using the same mechanism
22cddebcb0d0 allow @get and @set to work properly again (bug #57988) John W. Eaton <jwe@octave.org> parents: 28149 diff changeset	311 // as is used for keywords. However, they are not really keywords
22cddebcb0d0 allow @get and @set to work properly again (bug #57988) John W. Eaton <jwe@octave.org> parents: 28149 diff changeset	312 // in the language, so omit them from the list of possible
22cddebcb0d0 allow @get and @set to work properly again (bug #57988) John W. Eaton <jwe@octave.org> parents: 28149 diff changeset	313 // keywords. Likewise for "enumeration", "events", "methods", and
22cddebcb0d0 allow @get and @set to work properly again (bug #57988) John W. Eaton <jwe@octave.org> parents: 28149 diff changeset	314 // "properties".
22cddebcb0d0 allow @get and @set to work properly again (bug #57988) John W. Eaton <jwe@octave.org> parents: 28149 diff changeset	315
22cddebcb0d0 allow @get and @set to work properly again (bug #57988) John W. Eaton <jwe@octave.org> parents: 28149 diff changeset	316 return (octave_kw_hash::in_word_set (s.c_str (), s.length ()) != nullptr
22cddebcb0d0 allow @get and @set to work properly again (bug #57988) John W. Eaton <jwe@octave.org> parents: 28149 diff changeset	317 && ! (s == "set" \|\| s == "get"
22cddebcb0d0 allow @get and @set to work properly again (bug #57988) John W. Eaton <jwe@octave.org> parents: 28149 diff changeset	318 \|\| s == "enumeration" \|\| s == "events"
22cddebcb0d0 allow @get and @set to work properly again (bug #57988) John W. Eaton <jwe@octave.org> parents: 28149 diff changeset	319 \|\| s == "methods" \|\| s == "properties"));
22cddebcb0d0 allow @get and @set to work properly again (bug #57988) John W. Eaton <jwe@octave.org> parents: 28149 diff changeset	320 }
22cddebcb0d0 allow @get and @set to work properly again (bug #57988) John W. Eaton <jwe@octave.org> parents: 28149 diff changeset	321 }
22cddebcb0d0 allow @get and @set to work properly again (bug #57988) John W. Eaton <jwe@octave.org> parents: 28149 diff changeset	322
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	323 %}
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	324
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	325 D [0-9]
20588 e34692daf663 Extend parser to accept '_' in numbers. Rik <rik@octave.org> parents: 20547 diff changeset	326 D_ [0-9_]
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	327 S [ \t]
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	328 NL ((\n)\|(\r)\|(\r\n))
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	329 Im [iIjJ]
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	330 CCHAR [#%]
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	331 IDENT ([_$a-zA-Z][_$a-zA-Z0-9]*)
26708 606605d0cd31 allow spaces in FQ_IDENT, SUPERCLASSREF, and METAQUERY tokens in lexer John W. Eaton <jwe@octave.org> parents: 26686 diff changeset	332 FQIDENT ({IDENT}({S}\.{S}{IDENT})*)
20588 e34692daf663 Extend parser to accept '_' in numbers. Rik <rik@octave.org> parents: 20547 diff changeset	333 EXPON ([DdEe][+-]?{D}{D_}*)
20589 7c0e10f035bd Extend parser to accept binary constants that begin with '0b' or '0B'. Rik <rik@octave.org> parents: 20588 diff changeset	334 NUMBIN (0[bB][01_]+)
20588 e34692daf663 Extend parser to accept '_' in numbers. Rik <rik@octave.org> parents: 20547 diff changeset	335 NUMHEX (0[xX][0-9a-fA-F][0-9a-fA-F_]*)
20589 7c0e10f035bd Extend parser to accept binary constants that begin with '0b' or '0B'. Rik <rik@octave.org> parents: 20588 diff changeset	336 NUMREAL (({D}{D_}\.?{D_}{EXPON}?)\|(\.{D}{D_}*{EXPON}?))
7c0e10f035bd Extend parser to accept binary constants that begin with '0b' or '0B'. Rik <rik@octave.org> parents: 20588 diff changeset	337 NUMBER ({NUMREAL}\|{NUMHEX}\|{NUMBIN})
16228 e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	338
18311 b14cdae65abd prevent lexer from matching patterns across CR line endings (bug #41281) John W. Eaton <jwe@octave.org> parents: 18246 diff changeset	339 ANY_EXCEPT_NL [^\r\n]
16228 e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	340 ANY_INCLUDING_NL (.\|{NL})
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	341
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	342 %%
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	343
9474 25ed2d6aacf6 Parse nested functions more accurately. David Grundberg <individ@acc.umu.se> parents: 9324 diff changeset	344 %{
20835 14cd86258b3d use 'invalid' instead of 'bogus' in source files John W. Eaton <jwe@octave.org> parents: 20812 diff changeset	345 // Make script and function files start with an invalid token. This makes
9474 25ed2d6aacf6 Parse nested functions more accurately. David Grundberg <individ@acc.umu.se> parents: 9324 diff changeset	346 // the parser go down a special path.
25ed2d6aacf6 Parse nested functions more accurately. David Grundberg <individ@acc.umu.se> parents: 9324 diff changeset	347 %}
25ed2d6aacf6 Parse nested functions more accurately. David Grundberg <individ@acc.umu.se> parents: 9324 diff changeset	348
16228 e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	349 <INPUT_FILE_START>{ANY_INCLUDING_NL} {
16229 7b7b1e4968e8 use functions instead of token return macros in lexer John W. Eaton <jwe@octave.org> parents: 16228 diff changeset	350 curr_lexer->lexer_debug ("<INPUT_FILE_START>{ANY_INCLUDING_NL}");
16224 4a848eb52de2 use stack for tracking lexer start states John W. Eaton <jwe@octave.org> parents: 16209 diff changeset	351
16125 96a58f197f93 allow xunput to be called without buffer argument John W. Eaton <jwe@octave.org> parents: 16124 diff changeset	352 curr_lexer->xunput (yytext[0]);
16203 127cccb037bf move more global parser and lexer variables to classes John W. Eaton <jwe@octave.org> parents: 16199 diff changeset	353
127cccb037bf move more global parser and lexer variables to classes John W. Eaton <jwe@octave.org> parents: 16199 diff changeset	354 // May be reset later if we see "function" or "classdef" appears
127cccb037bf move more global parser and lexer variables to classes John W. Eaton <jwe@octave.org> parents: 16199 diff changeset	355 // as the first token.
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	356 curr_lexer->m_reading_script_file = true;
16203 127cccb037bf move more global parser and lexer variables to classes John W. Eaton <jwe@octave.org> parents: 16199 diff changeset	357
16224 4a848eb52de2 use stack for tracking lexer start states John W. Eaton <jwe@octave.org> parents: 16209 diff changeset	358 curr_lexer->pop_start_state ();
4a848eb52de2 use stack for tracking lexer start states John W. Eaton <jwe@octave.org> parents: 16209 diff changeset	359
16229 7b7b1e4968e8 use functions instead of token return macros in lexer John W. Eaton <jwe@octave.org> parents: 16228 diff changeset	360 return curr_lexer->show_token (INPUT_FILE);
4238 a5a68c0afe56 [project @ 2002-12-25 21:04:33 by jwe] jwe parents: 4237 diff changeset	361 }
a5a68c0afe56 [project @ 2002-12-25 21:04:33 by jwe] jwe parents: 4237 diff changeset	362
18774 4293f49795d9 don't crash on empty script files (bug #42064) John W. Eaton <jwe@octave.org> parents: 18531 diff changeset	363 <INPUT_FILE_START><<EOF>> {
4293f49795d9 don't crash on empty script files (bug #42064) John W. Eaton <jwe@octave.org> parents: 18531 diff changeset	364 curr_lexer->lexer_debug ("<INPUT_FILE_START><<EOF>>");
4293f49795d9 don't crash on empty script files (bug #42064) John W. Eaton <jwe@octave.org> parents: 18531 diff changeset	365
4293f49795d9 don't crash on empty script files (bug #42064) John W. Eaton <jwe@octave.org> parents: 18531 diff changeset	366 // May be reset later if we see "function" or "classdef" appears
4293f49795d9 don't crash on empty script files (bug #42064) John W. Eaton <jwe@octave.org> parents: 18531 diff changeset	367 // as the first token.
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	368 curr_lexer->m_reading_script_file = true;
18774 4293f49795d9 don't crash on empty script files (bug #42064) John W. Eaton <jwe@octave.org> parents: 18531 diff changeset	369
4293f49795d9 don't crash on empty script files (bug #42064) John W. Eaton <jwe@octave.org> parents: 18531 diff changeset	370 curr_lexer->pop_start_state ();
4293f49795d9 don't crash on empty script files (bug #42064) John W. Eaton <jwe@octave.org> parents: 18531 diff changeset	371
4293f49795d9 don't crash on empty script files (bug #42064) John W. Eaton <jwe@octave.org> parents: 18531 diff changeset	372 return curr_lexer->show_token (INPUT_FILE);
4293f49795d9 don't crash on empty script files (bug #42064) John W. Eaton <jwe@octave.org> parents: 18531 diff changeset	373 }
4293f49795d9 don't crash on empty script files (bug #42064) John W. Eaton <jwe@octave.org> parents: 18531 diff changeset	374
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	375 %{
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	376 // Help and other command-style functions.
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	377 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	378
18224 615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	379 %{
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	380 // Commands can be continued on a second line using the ellipsis.
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	381 // If an argument is in construction, it is completed.
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	382 %}
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	383
18312 7ac2a8b758fc maint: Periodic merge of stable to gui-release. John W. Eaton <jwe@octave.org> parents: 18247 18311 diff changeset	384 <COMMAND_START>(\.\.\.){ANY_EXCEPT_NL}*{NL} {
7ac2a8b758fc maint: Periodic merge of stable to gui-release. John W. Eaton <jwe@octave.org> parents: 18247 18311 diff changeset	385 curr_lexer->lexer_debug ("<COMMAND_START>(\\.\\.\\.){ANY_EXCEPT_NL}*{NL}");
18224 615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	386
27777 3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	387 if (! curr_lexer->m_string_text.empty ())
3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	388 {
3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	389 yyless (0);
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	390 curr_lexer->m_tok_end = curr_lexer->m_filepos;
27777 3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	391 return curr_lexer->finish_command_arg ();
3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	392 }
18224 615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	393
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	394 HANDLE_STRING_CONTINUATION;
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	395 }
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	396
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	397 %{
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	398 // Commands normally end at the end of a line or a semicolon.
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	399 %}
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	400
18312 7ac2a8b758fc maint: Periodic merge of stable to gui-release. John W. Eaton <jwe@octave.org> parents: 18247 18311 diff changeset	401 <COMMAND_START>({CCHAR}{ANY_EXCEPT_NL}*)?{NL} {
7ac2a8b758fc maint: Periodic merge of stable to gui-release. John W. Eaton <jwe@octave.org> parents: 18247 18311 diff changeset	402 curr_lexer->lexer_debug ("<COMMAND_START>({CCHAR}{ANY_EXCEPT_NL}*)?{NL}");
18224 615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	403
27777 3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	404 if (! curr_lexer->m_string_text.empty ())
3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	405 {
3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	406 yyless (0);
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	407 curr_lexer->m_tok_end = curr_lexer->m_filepos;
27777 3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	408 return curr_lexer->finish_command_arg ();
3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	409 }
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	410
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	411 curr_lexer->update_token_positions (yyleng);
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	412
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	413 curr_lexer->m_filepos.next_line ();
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	414 curr_lexer->m_looking_for_object_index = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	415 curr_lexer->m_at_beginning_of_statement = true;
16224 4a848eb52de2 use stack for tracking lexer start states John W. Eaton <jwe@octave.org> parents: 16209 diff changeset	416 curr_lexer->pop_start_state ();
4a848eb52de2 use stack for tracking lexer start states John W. Eaton <jwe@octave.org> parents: 16209 diff changeset	417
18224 615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	418 return curr_lexer->handle_token ('\n');
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	419 }
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	420
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	421 <COMMAND_START>[\,\;] {
18234 af8a70d6885c improve command parsing Michael C. Grant <mcg@cvxr.com> parents: 18231 diff changeset	422 curr_lexer->lexer_debug ("<COMMAND_START>[\\,\\;]");
18224 615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	423
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	424 if (yytext[0] != ',' \|\| curr_lexer->m_command_arg_paren_count == 0)
18224 615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	425 {
27777 3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	426 if (! curr_lexer->m_string_text.empty ())
3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	427 {
3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	428 yyless (0);
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	429 curr_lexer->m_tok_end = curr_lexer->m_filepos;
27777 3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	430 return curr_lexer->finish_command_arg ();
3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	431 }
3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	432
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	433 curr_lexer->update_token_positions (yyleng);
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	434
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	435 curr_lexer->m_looking_for_object_index = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	436 curr_lexer->m_at_beginning_of_statement = true;
18224 615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	437 curr_lexer->pop_start_state ();
27777 3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	438
18224 615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	439 return curr_lexer->handle_token (yytext[0]);
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	440 }
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	441 else
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	442 {
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	443 curr_lexer->m_string_text += yytext;
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	444 curr_lexer->m_filepos.increment_column (yyleng);
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	445 }
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	446 }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	447
18224 615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	448 %{
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	449 // Unbalanced parentheses serve as pseudo-quotes: they are included in
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	450 // the final argument string, but they cause parentheses and quotes to
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	451 // be slurped into that argument as well.
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	452 %}
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	453
18234 af8a70d6885c improve command parsing Michael C. Grant <mcg@cvxr.com> parents: 18231 diff changeset	454 <COMMAND_START>[\(\[\{]* {
18224 615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	455 curr_lexer->lexer_debug ("<COMMAND_START>[\\(\\[\\{]+");
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	456
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	457 curr_lexer->m_command_arg_paren_count += yyleng;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	458 curr_lexer->m_string_text += yytext;
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	459 curr_lexer->m_filepos.increment_column (yyleng);
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	460 }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	461
18234 af8a70d6885c improve command parsing Michael C. Grant <mcg@cvxr.com> parents: 18231 diff changeset	462 <COMMAND_START>[\)\]\}]* {
18224 615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	463 curr_lexer->lexer_debug ("<COMMAND_START>[\\)\\]\\}]+");
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	464
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	465 curr_lexer->m_command_arg_paren_count -= yyleng;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	466 curr_lexer->m_string_text += yytext;
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	467 curr_lexer->m_filepos.increment_column (yyleng);
18224 615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	468 }
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	469
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	470 %{
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	471 // Handle quoted strings. Quoted strings that are not separated by
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	472 // whitespace from other argument text are combined with that previous
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	473 // text. For instance,
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	474 //
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	475 // command 'text1'"text2"
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	476 //
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	477 // has a single argument text1text2, not two separate arguments.
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	478 // That's why we must test to see if we are in command argument mode
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	479 // when processing the end of a string.
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	480 %}
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	481
4208 e96f52432059 [project @ 2002-12-03 19:48:57 by jwe] jwe parents: 4198 diff changeset	482 <COMMAND_START>[\"\'] {
16229 7b7b1e4968e8 use functions instead of token return macros in lexer John W. Eaton <jwe@octave.org> parents: 16228 diff changeset	483 curr_lexer->lexer_debug ("<COMMAND_START>[\\\"\\']");
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	484
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	485 if (curr_lexer->m_command_arg_paren_count == 0)
18224 615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	486 curr_lexer->begin_string (yytext[0] == '"'
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	487 ? DQ_STRING_START : SQ_STRING_START);
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	488 else
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	489 curr_lexer->m_string_text += yytext;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	490
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	491 curr_lexer->m_filepos.increment_column (yyleng);
975 e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe] jwe parents: 973 diff changeset	492 }
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe] jwe parents: 973 diff changeset	493
18224 615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	494 %{
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	495 // In standard command argument processing, whitespace separates
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	496 // arguments. In the presence of unbalanced parentheses, it is
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	497 // incorporated into the argument.
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	498 %}
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	499
18234 af8a70d6885c improve command parsing Michael C. Grant <mcg@cvxr.com> parents: 18231 diff changeset	500 <COMMAND_START>{S}* {
af8a70d6885c improve command parsing Michael C. Grant <mcg@cvxr.com> parents: 18231 diff changeset	501 curr_lexer->lexer_debug ("<COMMAND_START>{S}*");
18224 615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	502
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	503 if (curr_lexer->m_command_arg_paren_count == 0)
27777 3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	504 {
3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	505 if (! curr_lexer->m_string_text.empty ())
3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	506 {
3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	507 yyless (0);
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	508 curr_lexer->m_tok_end = curr_lexer->m_filepos;
27777 3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	509 return curr_lexer->finish_command_arg ();
3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	510 }
3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	511 }
18224 615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	512 else
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	513 curr_lexer->m_string_text += yytext;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	514
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	515 curr_lexer->m_filepos.increment_column (yyleng);
18224 615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	516 }
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	517
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	518 %{
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	519 // Everything else is slurped into the command arguments.
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	520 %}
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	521
18234 af8a70d6885c improve command parsing Michael C. Grant <mcg@cvxr.com> parents: 18231 diff changeset	522 <COMMAND_START>([\.]\|[^#% \t\r\n\.\,\;\"\'$\[\{\}\]$]*) {
18458 ebb878596bcf Restore escaped backslashes accidentally deleted by cset af8a70d6885c Mike Miller <mtmiller@ieee.org> parents: 18437 diff changeset	523 curr_lexer->lexer_debug ("<COMMAND_START>([\\.]\|[^#% \\t\\r\\n\\.\\,\\;\\\"\\'\$\\[\\{\\}\\]\$]*");
18224 615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	524
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	525 curr_lexer->m_string_text += yytext;
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	526 curr_lexer->m_filepos.increment_column (yyleng);
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	527 }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	528
16257 db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	529 <MATRIX_START>{S}* {
db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	530 curr_lexer->lexer_debug ("<MATRIX_START>{S}*");
db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	531
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	532 curr_lexer->m_filepos.increment_column (yyleng);
25708 ca38400776bc track column count in lexer in a few more places (bug #34852) John W. Eaton <jwe@octave.org> parents: 25646 diff changeset	533
16257 db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	534 curr_lexer->mark_previous_token_trailing_space ();
db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	535 }
db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	536
db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	537 <MATRIX_START>{NL} {
db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	538 curr_lexer->lexer_debug ("<MATRIX_START>{NL}");
db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	539
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	540 curr_lexer->m_filepos.next_line ();
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	541
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	542 if (curr_lexer->m_nesting_level.is_paren ())
21102 dfcb9d74b253 Rename local gripe_XXX functions to err_XXX or warn_XXX. Rik <rik@octave.org> parents: 21100 diff changeset	543 curr_lexer->warn_language_extension ("bare newline inside parentheses");
16267 15f55df088e7 6/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16265 diff changeset	544 else
15f55df088e7 6/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16265 diff changeset	545 {
15f55df088e7 6/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16265 diff changeset	546 int tok = curr_lexer->previous_token_value ();
15f55df088e7 6/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16265 diff changeset	547
15f55df088e7 6/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16265 diff changeset	548 if (! (tok == ';' \|\| tok == '[' \|\| tok == '{'))
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	549 curr_lexer->xunput (';');
16267 15f55df088e7 6/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16265 diff changeset	550 }
16257 db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	551 }
db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	552
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	553 %{
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	554 // For this and the next two rules, we're looking at ']', and we
15466 d174210ce1ec use ' instead of ` in error messages, warnings and most comments John W. Eaton <jwe@octave.org> parents: 14161 diff changeset	555 // need to know if the next token is '=' or '=='.
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	556 //
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	557 // It would have been so much easier if the delimiters were simply
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	558 // different for the expression on the left hand side of the equals
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	559 // operator.
971 fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe] jwe parents: 970 diff changeset	560 //
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe] jwe parents: 970 diff changeset	561 // It's also a pain in the ass to decide whether to insert a comma
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe] jwe parents: 970 diff changeset	562 // after seeing a ']' character...
7723 74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	563
17861 870f3e12e163 maint: Use phrase "FIXME:" for problem areas in code. Rik <rik@octave.org> parents: 17744 diff changeset	564 // FIXME: we need to handle block comments here.
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	565 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	566
16257 db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	567 <MATRIX_START>\] {
db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	568 curr_lexer->lexer_debug ("<MATRIX_START>\\]");
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	569
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	570 curr_lexer->update_token_positions (yyleng);
25708 ca38400776bc track column count in lexer in a few more places (bug #34852) John W. Eaton <jwe@octave.org> parents: 25646 diff changeset	571 return curr_lexer->handle_close_bracket (']');
4608 22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe] jwe parents: 4476 diff changeset	572 }
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe] jwe parents: 4476 diff changeset	573
7723 74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	574 %{
17861 870f3e12e163 maint: Use phrase "FIXME:" for problem areas in code. Rik <rik@octave.org> parents: 17744 diff changeset	575 // FIXME: we need to handle block comments here.
7723 74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	576 %}
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	577
16257 db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	578 <MATRIX_START>\} {
db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	579 curr_lexer->lexer_debug ("<MATRIX_START>\\}*");
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	580
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	581 curr_lexer->update_token_positions (yyleng);
25708 ca38400776bc track column count in lexer in a few more places (bug #34852) John W. Eaton <jwe@octave.org> parents: 25646 diff changeset	582 return curr_lexer->handle_close_bracket ('}');
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	583 }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	584
16257 db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	585 \[ {
db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	586 curr_lexer->lexer_debug ("\\[");
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	587
16275 dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	588 bool unput_comma = false;
16263 9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	589
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	590 if (curr_lexer->whitespace_is_significant ()
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	591 && curr_lexer->space_follows_previous_token ())
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	592 {
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	593 int tok = curr_lexer->previous_token_value ();
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	594
16267 15f55df088e7 6/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16265 diff changeset	595 if (! (tok == '[' \|\| tok == '{'
16263 9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	596 \|\| curr_lexer->previous_token_is_binop ()))
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	597 unput_comma = true;
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	598 }
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	599
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	600 if (unput_comma)
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	601 {
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	602 yyless (0);
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	603 curr_lexer->xunput (',');
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	604 }
5615 d01f07aeaec5 [project @ 2006-02-10 21:30:41 by jwe] jwe parents: 5570 diff changeset	605 else
16263 9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	606 {
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	607 curr_lexer->update_token_positions (yyleng);
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	608
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	609 curr_lexer->m_nesting_level.bracket ();
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	610
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	611 curr_lexer->m_looking_at_object_index.push_front (false);
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	612
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	613 curr_lexer->m_looking_for_object_index = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	614 curr_lexer->m_at_beginning_of_statement = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	615
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	616 if (curr_lexer->m_defining_func
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	617 && ! curr_lexer->m_parsed_function_name.top ())
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	618 curr_lexer->m_looking_at_return_list = true;
16263 9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	619 else
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	620 curr_lexer->m_looking_at_matrix_or_assign_lhs = true;
16263 9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	621
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	622 curr_lexer->m_bracketflag++;
16263 9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	623
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	624 curr_lexer->push_start_state (MATRIX_START);
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	625
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	626 return curr_lexer->count_token ('[');
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	627 }
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	628 }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	629
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	630 \] {
16229 7b7b1e4968e8 use functions instead of token return macros in lexer John W. Eaton <jwe@octave.org> parents: 16228 diff changeset	631 curr_lexer->lexer_debug ("\\]");
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	632
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	633 curr_lexer->update_token_positions (yyleng);
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	634
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	635 curr_lexer->m_nesting_level.remove ();
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	636
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	637 curr_lexer->m_looking_at_object_index.pop_front ();
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	638
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	639 curr_lexer->m_looking_for_object_index = true;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	640 curr_lexer->m_at_beginning_of_statement = false;
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	641
16229 7b7b1e4968e8 use functions instead of token return macros in lexer John W. Eaton <jwe@octave.org> parents: 16228 diff changeset	642 return curr_lexer->handle_token (']');
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	643 }
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	644
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	645 %{
27578 5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	646 // Gobble comments. Both BLOCK_COMMENT_START and LINE_COMMENT_START
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	647 // are exclusive start states. We try to grab a continuous series of
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	648 // line-oriented comments as a single collection of comments.
16228 e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	649 %}
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	650
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	651 %{
27578 5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	652 // Start of a block comment. Since comment start states are exclusive,
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	653 // this pattern will not match a block comment that immediately follows
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	654 // a line-oriented comment. All we need to do is push the matched text
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	655 // back on the input stream and push the new start state.
16228 e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	656 %}
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	657
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	658 ^{S}{CCHAR}\{{S}{NL} {
16903 f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	659 curr_lexer->lexer_debug ("^{S}{CCHAR}\\{{S}{NL}");
16228 e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	660
16253 a89cf57ba3a5 partial cleanup of continuation handling in lexer John W. Eaton <jwe@octave.org> parents: 16231 diff changeset	661 yyless (0);
16228 e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	662
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	663 curr_lexer->push_start_state (BLOCK_COMMENT_START);
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	664 }
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	665
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	666 <BLOCK_COMMENT_START>^{S}{CCHAR}\{{S}{NL} {
16903 f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	667 curr_lexer->lexer_debug ("<BLOCK_COMMENT_START>^{S}{CCHAR}\\{{S}{NL}");
16228 e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	668
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	669 curr_lexer->m_filepos.next_line ();
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	670
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	671 if (curr_lexer->m_block_comment_nesting_level)
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	672 curr_lexer->m_comment_text = "\n";
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	673
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	674 curr_lexer->m_block_comment_nesting_level++;
28147 648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	675
648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	676 HANDLE_EOB_OR_EOF (-1);
16228 e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	677 }
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	678
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	679 %{
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	680 // End of a block comment. If this block comment is nested inside
27578 5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	681 // another, wait for the outermost block comment to be closed before
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	682 // storing the comment.
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	683
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	684 // NOTE: This pattern must appear before the one below. Both may match
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	685 // the same text and this one should take precedence over the one that
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	686 // follows.
16228 e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	687 %}
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	688
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	689 <BLOCK_COMMENT_START>^{S}{CCHAR}\}{S}{NL} {
16229 7b7b1e4968e8 use functions instead of token return macros in lexer John W. Eaton <jwe@octave.org> parents: 16228 diff changeset	690 curr_lexer->lexer_debug ("<BLOCK_COMMENT_START>^{S}{CCHAR}\\}{S}{NL}");
16228 e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	691
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	692 curr_lexer->m_filepos.next_line ();
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	693
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	694 if (curr_lexer->m_block_comment_nesting_level > 1)
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	695 curr_lexer->m_comment_text = "\n";
16228 e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	696 else
23750 ea879bc55272 move comment_list and comment_elt classes to octave namespace John W. Eaton <jwe@octave.org> parents: 23730 diff changeset	697 curr_lexer->finish_comment (octave::comment_elt::block);
16228 e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	698
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	699 curr_lexer->m_block_comment_nesting_level--;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	700
28147 648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	701 int status = -1;
648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	702
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	703 if (curr_lexer->m_block_comment_nesting_level == 0)
28147 648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	704 {
648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	705 status = -2;
648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	706
648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	707 curr_lexer->pop_start_state ();
648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	708 }
648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	709
648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	710 HANDLE_EOB_OR_EOF (status);
16228 e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	711 }
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	712
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	713 %{
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	714 // Body of a block comment.
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	715 %}
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	716
18311 b14cdae65abd prevent lexer from matching patterns across CR line endings (bug #41281) John W. Eaton <jwe@octave.org> parents: 18246 diff changeset	717 <BLOCK_COMMENT_START>{ANY_EXCEPT_NL}*{NL} {
b14cdae65abd prevent lexer from matching patterns across CR line endings (bug #41281) John W. Eaton <jwe@octave.org> parents: 18246 diff changeset	718 curr_lexer->lexer_debug ("<BLOCK_COMMENT_START>{ANY_EXCEPT_NL}*{NL}");
16228 e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	719
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	720 curr_lexer->m_filepos.next_line ();
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	721 curr_lexer->m_comment_text += yytext;
28147 648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	722
648202bebcb0 improve treatment of comments at interactive command line (bug #57924) John W. Eaton <jwe@octave.org> parents: 28112 diff changeset	723 HANDLE_EOB_OR_EOF (-1);
16228 e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	724 }
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	725
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	726 %{
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	727 // Full-line or end-of-line comment.
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	728 %}
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	729
18311 b14cdae65abd prevent lexer from matching patterns across CR line endings (bug #41281) John W. Eaton <jwe@octave.org> parents: 18246 diff changeset	730 {S}{CCHAR}{ANY_EXCEPT_NL}{NL} {
b14cdae65abd prevent lexer from matching patterns across CR line endings (bug #41281) John W. Eaton <jwe@octave.org> parents: 18246 diff changeset	731 curr_lexer->lexer_debug ("{S}{CCHAR}{ANY_EXCEPT_NL}{NL}");
16228 e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	732
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	733 curr_lexer->push_start_state (LINE_COMMENT_START);
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	734 yyless (0);
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	735 }
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	736
27578 5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	737 %{
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	738 // Beginning of a block comment while we are looking at a series of
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	739 // line-oriented comments. Finish previous comment, push current
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	740 // text back on input stream, and switch start states.
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	741
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	742 // NOTE: This pattern must appear before the one below. Both may match
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	743 // the same text and this one should take precedence over the one that
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	744 // follows.
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	745 %}
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	746
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	747 <LINE_COMMENT_START>^{S}{CCHAR}\{{S}{NL} {
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	748 curr_lexer->lexer_debug ("<LINE_COMMENT_START>^{S}{CCHAR}\\{{S}{NL}");
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	749
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	750 if (! curr_lexer->m_comment_text.empty ())
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	751 curr_lexer->finish_comment (octave::comment_elt::full_line);
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	752
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	753 curr_lexer->pop_start_state ();
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	754 curr_lexer->push_start_state (BLOCK_COMMENT_START);
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	755 yyless (0);
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	756 }
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	757
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	758 %{
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	759 // Line-oriented comment. If we are at the beginning of a line, this is
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	760 // part of a series of full-line comments. Otherwise, this is an end of
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	761 // line comment. We don't need to parse the matched text to determine
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	762 // whether we are looking at the start of a block comment as that
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	763 // pattern is handled above.
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	764
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	765 // NOTE: This pattern must appear before the one below. Both may match
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	766 // the same text and this one should take precedence over the one that
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	767 // follows.
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	768 %}
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	769
18311 b14cdae65abd prevent lexer from matching patterns across CR line endings (bug #41281) John W. Eaton <jwe@octave.org> parents: 18246 diff changeset	770 <LINE_COMMENT_START>{S}{CCHAR}{ANY_EXCEPT_NL}{NL} {
b14cdae65abd prevent lexer from matching patterns across CR line endings (bug #41281) John W. Eaton <jwe@octave.org> parents: 18246 diff changeset	771 curr_lexer->lexer_debug ("<LINE_COMMENT_START>{S}{CCHAR}{ANY_EXCEPT_NL}{NL}");
16228 e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	772
27578 5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	773 // Grab text of comment without leading space or comment
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	774 // characters.
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	775
16228 e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	776 size_t i = 0;
27578 5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	777 while (i < yyleng && is_space_or_tab (yytext[i]))
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	778 i++;
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	779
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	780 bool have_space = (i > 0);
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	781
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	782 while (i < yyleng && (yytext[i] == '#' \|\| yytext[i] == '%'))
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	783 i++;
16363 d16c255299c0 recognize block comment begin while processing line comments (bug #38559) John W. Eaton <jwe@octave.org> parents: 16361 diff changeset	784
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	785 curr_lexer->m_comment_text += &yytext[i];
16228 e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	786
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	787 if (curr_lexer->m_filepos.column () == 1)
16363 d16c255299c0 recognize block comment begin while processing line comments (bug #38559) John W. Eaton <jwe@octave.org> parents: 16361 diff changeset	788 {
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	789 curr_lexer->m_filepos.next_line ();
16363 d16c255299c0 recognize block comment begin while processing line comments (bug #38559) John W. Eaton <jwe@octave.org> parents: 16361 diff changeset	790 }
d16c255299c0 recognize block comment begin while processing line comments (bug #38559) John W. Eaton <jwe@octave.org> parents: 16361 diff changeset	791 else
16228 e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	792 {
27578 5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	793 // End of line comment.
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	794
16255 12bf6a3f8c45 store more info in token value class John W. Eaton <jwe@octave.org> parents: 16253 diff changeset	795 if (have_space)
12bf6a3f8c45 store more info in token value class John W. Eaton <jwe@octave.org> parents: 16253 diff changeset	796 curr_lexer->mark_previous_token_trailing_space ();
12bf6a3f8c45 store more info in token value class John W. Eaton <jwe@octave.org> parents: 16253 diff changeset	797
23750 ea879bc55272 move comment_list and comment_elt classes to octave namespace John W. Eaton <jwe@octave.org> parents: 23730 diff changeset	798 curr_lexer->finish_comment (octave::comment_elt::end_of_line);
16228 e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	799
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	800 curr_lexer->pop_start_state ();
16337 6bfd8dbd7d3c don't swallow statements that follow comment lines (bug #38549) John W. Eaton <jwe@octave.org> parents: 16334 diff changeset	801
27578 5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	802 // Push the newline character back on the input and skip
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	803 // incrementing the line count so we don't have to duplicate
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	804 // all the possible actions that happen with newlines here.
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	805
16337 6bfd8dbd7d3c don't swallow statements that follow comment lines (bug #38549) John W. Eaton <jwe@octave.org> parents: 16334 diff changeset	806 curr_lexer->xunput ('\n');
27578 5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	807
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	808 // The next action should recognize a newline character and set
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	809 // the input column back to 1, but we should try to keep the
5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	810 // input column location accurate anyway, so update here.
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	811 curr_lexer->m_filepos.increment_column (yyleng);
16228 e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	812 }
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	813 }
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	814
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	815 %{
27760 16e83787f970 fix handling of full line comments at command prompt (bug #57208) John W. Eaton <jwe@octave.org> parents: 27736 diff changeset	816 // End of a series of full-line because some other character was
16e83787f970 fix handling of full line comments at command prompt (bug #57208) John W. Eaton <jwe@octave.org> parents: 27736 diff changeset	817 // found on the input stream.
16228 e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	818 %}
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	819
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	820 <LINE_COMMENT_START>{ANY_INCLUDING_NL} {
16229 7b7b1e4968e8 use functions instead of token return macros in lexer John W. Eaton <jwe@octave.org> parents: 16228 diff changeset	821 curr_lexer->lexer_debug ("<LINE_COMMENT_START>{ANY_INCLUDING_NL}");
16228 e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	822
28264 d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	823 if (yytext[0] == '\001')
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	824 {
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	825 // We are here because we are using the push parser/lexer
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	826 // interface and we hit the end of the input buffer or file.
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	827 // The special ASCII 1 marker is added to the input by
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	828 // push_lexer::fill_flex_buffer.
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	829
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	830 if (curr_lexer->pending_token_count () > 0)
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	831 {
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	832 // We are in the middle of parsing a command, expresison,
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	833 // etc., so set the return status so that if we are at the
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	834 // end of the buffer we'll continue looking for more input,
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	835 // possibly buffering a series of line oriented comments as
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	836 // a single block.
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	837
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	838 HANDLE_EOB_OR_EOF (-1);
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	839 }
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	840 else
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	841 {
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	842 // We are not in the process of parsing a command,
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	843 // expression, etc., so end any current sequence of comments
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	844 // with this full line comment, pop the start state and
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	845 // return as if we have just finished parsing a complete
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	846 // statement.
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	847
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	848 curr_lexer->finish_comment (octave::comment_elt::full_line);
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	849
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	850 curr_lexer->pop_start_state ();
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	851
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	852 HANDLE_EOB_OR_EOF (-2);
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	853 }
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	854 }
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	855 else
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	856 {
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	857 // End any current sequence of comments, pop the start state,
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	858 // and unput the pending input character that ended the series
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	859 // of comments.
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	860
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	861 curr_lexer->finish_comment (octave::comment_elt::full_line);
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	862
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	863 curr_lexer->pop_start_state ();
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	864
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	865 curr_lexer->xunput (yytext[0]);
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	866 }
16228 e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	867 }
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	868
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	869 %{
27578 5aad387784aa fix line count in lexer when mixing line and block comments (bug #57121) John W. Eaton <jwe@octave.org> parents: 27528 diff changeset	870 // End of file will also end a series of full-line comments.
17722 5b0036d89d4a allow "help dir-name" to work when comment block ends at EOF (bug #40342) John W. Eaton <jwe@octave.org> parents: 17693 diff changeset	871 %}
5b0036d89d4a allow "help dir-name" to work when comment block ends at EOF (bug #40342) John W. Eaton <jwe@octave.org> parents: 17693 diff changeset	872
5b0036d89d4a allow "help dir-name" to work when comment block ends at EOF (bug #40342) John W. Eaton <jwe@octave.org> parents: 17693 diff changeset	873 <LINE_COMMENT_START><<EOF>> {
5b0036d89d4a allow "help dir-name" to work when comment block ends at EOF (bug #40342) John W. Eaton <jwe@octave.org> parents: 17693 diff changeset	874 curr_lexer->lexer_debug ("<LINE_COMMENT_START><<EOF>>");
5b0036d89d4a allow "help dir-name" to work when comment block ends at EOF (bug #40342) John W. Eaton <jwe@octave.org> parents: 17693 diff changeset	875
23750 ea879bc55272 move comment_list and comment_elt classes to octave namespace John W. Eaton <jwe@octave.org> parents: 23730 diff changeset	876 curr_lexer->finish_comment (octave::comment_elt::full_line);
17722 5b0036d89d4a allow "help dir-name" to work when comment block ends at EOF (bug #40342) John W. Eaton <jwe@octave.org> parents: 17693 diff changeset	877
5b0036d89d4a allow "help dir-name" to work when comment block ends at EOF (bug #40342) John W. Eaton <jwe@octave.org> parents: 17693 diff changeset	878 curr_lexer->pop_start_state ();
5b0036d89d4a allow "help dir-name" to work when comment block ends at EOF (bug #40342) John W. Eaton <jwe@octave.org> parents: 17693 diff changeset	879 }
5b0036d89d4a allow "help dir-name" to work when comment block ends at EOF (bug #40342) John W. Eaton <jwe@octave.org> parents: 17693 diff changeset	880
5b0036d89d4a allow "help dir-name" to work when comment block ends at EOF (bug #40342) John W. Eaton <jwe@octave.org> parents: 17693 diff changeset	881 %{
16898 531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	882 // Double-quoted character strings.
531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	883 %}
531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	884
531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	885 <DQ_STRING_START>\"\" {
16903 f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	886 curr_lexer->lexer_debug ("<DQ_STRING_START>\\\"\\\"");
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	887
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	888 curr_lexer->m_filepos.increment_column (yyleng);
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	889 curr_lexer->m_string_text += '"';
16898 531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	890 }
531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	891
531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	892 <DQ_STRING_START>\" {
16903 f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	893 curr_lexer->lexer_debug ("<DQ_STRING_START>\\\"");
16898 531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	894
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	895 // m_tok_beg was set when we started parsing the string.
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	896 curr_lexer->m_tok_end = curr_lexer->m_filepos;
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	897 curr_lexer->m_filepos.increment_column ();
16904 f29dd5a7591d more tweaks for parsing character strings John W. Eaton <jwe@octave.org> parents: 16903 diff changeset	898
16898 531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	899 curr_lexer->pop_start_state ();
531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	900
18224 615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	901 if (curr_lexer->start_state() != COMMAND_START)
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	902 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	903 curr_lexer->m_looking_for_object_index = true;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	904 curr_lexer->m_at_beginning_of_statement = false;
18224 615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	905
23075 4e3d47dc7e25 move parse tree classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23061 diff changeset	906 curr_lexer->push_token (new octave::token (DQ_STRING,
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	907 curr_lexer->m_string_text,
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	908 curr_lexer->m_tok_beg,
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	909 curr_lexer->m_tok_end));
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	910
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	911 curr_lexer->m_string_text = "";
18224 615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	912
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	913 return curr_lexer->count_token_internal (DQ_STRING);
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	914 }
16898 531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	915 }
531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	916
531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	917 <DQ_STRING_START>\\[0-7]{1,3} {
16903 f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	918 curr_lexer->lexer_debug ("<DQ_STRING_START>\\\\[0-7]{1,3}");
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	919
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	920 curr_lexer->update_token_positions (yyleng);
16904 f29dd5a7591d more tweaks for parsing character strings John W. Eaton <jwe@octave.org> parents: 16903 diff changeset	921
26450 af7faef288ad lex.ll: Fix static analyzer detected issues (bug #55347). Rik <rik@octave.org> parents: 26376 diff changeset	922 unsigned int result;
16898 531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	923 sscanf (yytext+1, "%o", &result);
531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	924
531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	925 if (result > 0xff)
21064 a9f2c2d72892 handle lexical errors as parser errors (bug #46877) John W. Eaton <jwe@octave.org> parents: 21055 diff changeset	926 {
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	927 // Use location of octal digits for error token.
23075 4e3d47dc7e25 move parse tree classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23061 diff changeset	928 octave::token *tok
4e3d47dc7e25 move parse tree classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23061 diff changeset	929 = new octave::token (LEXICAL_ERROR,
4e3d47dc7e25 move parse tree classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23061 diff changeset	930 "invalid octal escape sequence in character string",
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	931 curr_lexer->m_tok_beg, curr_lexer->m_tok_end);
21064 a9f2c2d72892 handle lexical errors as parser errors (bug #46877) John W. Eaton <jwe@octave.org> parents: 21055 diff changeset	932
a9f2c2d72892 handle lexical errors as parser errors (bug #46877) John W. Eaton <jwe@octave.org> parents: 21055 diff changeset	933 curr_lexer->push_token (tok);
a9f2c2d72892 handle lexical errors as parser errors (bug #46877) John W. Eaton <jwe@octave.org> parents: 21055 diff changeset	934
a9f2c2d72892 handle lexical errors as parser errors (bug #46877) John W. Eaton <jwe@octave.org> parents: 21055 diff changeset	935 return curr_lexer->count_token_internal (LEXICAL_ERROR);
a9f2c2d72892 handle lexical errors as parser errors (bug #46877) John W. Eaton <jwe@octave.org> parents: 21055 diff changeset	936 }
16898 531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	937 else
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	938 curr_lexer->m_string_text += static_cast<unsigned char> (result);
16898 531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	939 }
531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	940
17244 9de751a10910 Add support for hexadecimal escape sequences in double-quoted strings (bug #39775) Mike Miller <mtmiller@ieee.org> parents: 16914 diff changeset	941 <DQ_STRING_START>\\x[0-9a-fA-F]+ {
9de751a10910 Add support for hexadecimal escape sequences in double-quoted strings (bug #39775) Mike Miller <mtmiller@ieee.org> parents: 16914 diff changeset	942 curr_lexer->lexer_debug ("<DQ_STRING_START>\\\\x[0-9a-fA-F]+");
9de751a10910 Add support for hexadecimal escape sequences in double-quoted strings (bug #39775) Mike Miller <mtmiller@ieee.org> parents: 16914 diff changeset	943
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	944 curr_lexer->m_filepos.increment_column (yyleng);
17244 9de751a10910 Add support for hexadecimal escape sequences in double-quoted strings (bug #39775) Mike Miller <mtmiller@ieee.org> parents: 16914 diff changeset	945
26450 af7faef288ad lex.ll: Fix static analyzer detected issues (bug #55347). Rik <rik@octave.org> parents: 26376 diff changeset	946 unsigned int result;
17244 9de751a10910 Add support for hexadecimal escape sequences in double-quoted strings (bug #39775) Mike Miller <mtmiller@ieee.org> parents: 16914 diff changeset	947 sscanf (yytext+2, "%x", &result);
9de751a10910 Add support for hexadecimal escape sequences in double-quoted strings (bug #39775) Mike Miller <mtmiller@ieee.org> parents: 16914 diff changeset	948
9de751a10910 Add support for hexadecimal escape sequences in double-quoted strings (bug #39775) Mike Miller <mtmiller@ieee.org> parents: 16914 diff changeset	949 // Truncate the value silently instead of checking the range like
9de751a10910 Add support for hexadecimal escape sequences in double-quoted strings (bug #39775) Mike Miller <mtmiller@ieee.org> parents: 16914 diff changeset	950 // we do for octal above. This is to match C/C++ where any number
9de751a10910 Add support for hexadecimal escape sequences in double-quoted strings (bug #39775) Mike Miller <mtmiller@ieee.org> parents: 16914 diff changeset	951 // of digits is allowed but the value is implementation-defined if
9de751a10910 Add support for hexadecimal escape sequences in double-quoted strings (bug #39775) Mike Miller <mtmiller@ieee.org> parents: 16914 diff changeset	952 // it exceeds the range of the character type.
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	953 curr_lexer->m_string_text += static_cast<unsigned char> (result);
17244 9de751a10910 Add support for hexadecimal escape sequences in double-quoted strings (bug #39775) Mike Miller <mtmiller@ieee.org> parents: 16914 diff changeset	954 }
9de751a10910 Add support for hexadecimal escape sequences in double-quoted strings (bug #39775) Mike Miller <mtmiller@ieee.org> parents: 16914 diff changeset	955
16903 f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	956 <DQ_STRING_START>"\\a" {
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	957 curr_lexer->lexer_debug ("<DQ_STRING_START>\"\\\\a\"");
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	958
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	959 curr_lexer->m_filepos.increment_column (yyleng);
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	960 curr_lexer->m_string_text += '\a';
16903 f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	961 }
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	962
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	963 <DQ_STRING_START>"\\b" {
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	964 curr_lexer->lexer_debug ("<DQ_STRING_START>\"\\\\b\"");
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	965
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	966 curr_lexer->m_filepos.increment_column (yyleng);
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	967 curr_lexer->m_string_text += '\b';
16903 f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	968 }
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	969
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	970 <DQ_STRING_START>"\\f" {
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	971 curr_lexer->lexer_debug ("<DQ_STRING_START>\"\\\\f\"");
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	972
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	973 curr_lexer->m_filepos.increment_column (yyleng);
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	974 curr_lexer->m_string_text += '\f';
16903 f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	975 }
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	976
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	977 <DQ_STRING_START>"\\n" {
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	978 curr_lexer->lexer_debug ("<DQ_STRING_START>\"\\\\n\"");
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	979
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	980 curr_lexer->m_filepos.increment_column (yyleng);
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	981 curr_lexer->m_string_text += '\n';
16903 f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	982 }
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	983
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	984 <DQ_STRING_START>"\\r" {
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	985 curr_lexer->lexer_debug ("<DQ_STRING_START>\"\\\\r\"");
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	986
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	987 curr_lexer->m_filepos.increment_column (yyleng);
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	988 curr_lexer->m_string_text += '\r';
16903 f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	989 }
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	990
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	991 <DQ_STRING_START>"\\t" {
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	992 curr_lexer->lexer_debug ("<DQ_STRING_START>\"\\\\t\"");
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	993
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	994 curr_lexer->m_filepos.increment_column (yyleng);
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	995 curr_lexer->m_string_text += '\t';
16903 f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	996 }
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	997
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	998 <DQ_STRING_START>"\\v" {
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	999 curr_lexer->lexer_debug ("<DQ_STRING_START>\"\\\\v\"");
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	1000
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	1001 curr_lexer->m_filepos.increment_column (yyleng);
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1002 curr_lexer->m_string_text += '\v';
16903 f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	1003 }
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	1004
18428 4d2e15abe5e7 Disallow comments after continuation in double-quoted strings (bug #41415). Stefan Mahr <dac922@gmx.de> parents: 18319 diff changeset	1005 <DQ_STRING_START>(\.\.\.){S}*{NL} {
4d2e15abe5e7 Disallow comments after continuation in double-quoted strings (bug #41415). Stefan Mahr <dac922@gmx.de> parents: 18319 diff changeset	1006 curr_lexer->lexer_debug ("<DQ_STRING_START>(\\.\\.\\.){S}*{NL}");
16914 bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1007
bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1008 static const char *msg = "'...' continuations in double-quoted character strings are obsolete and will not be allowed in a future version of Octave; please use '\\' instead";
bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1009
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1010 std::string nm = curr_lexer->m_fcn_file_full_name;
16914 bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1011
bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1012 if (nm.empty ())
bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1013 warning_with_id ("Octave:deprecated-syntax", "%s", msg);
bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1014 else
bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1015 warning_with_id ("Octave:deprecated-syntax",
bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1016 "%s; near line %d of file '%s'", msg,
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	1017 curr_lexer->m_filepos.line (), nm.c_str ());
16914 bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1018
bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1019 HANDLE_STRING_CONTINUATION;
bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1020 }
bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1021
18428 4d2e15abe5e7 Disallow comments after continuation in double-quoted strings (bug #41415). Stefan Mahr <dac922@gmx.de> parents: 18319 diff changeset	1022 <DQ_STRING_START>\\{S}+{NL} {
4d2e15abe5e7 Disallow comments after continuation in double-quoted strings (bug #41415). Stefan Mahr <dac922@gmx.de> parents: 18319 diff changeset	1023 curr_lexer->lexer_debug ("<DQ_STRING_START>\\\\{S}+{NL}");
16914 bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1024
bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1025 static const char *msg = "white space and comments after continuation markers in double-quoted character strings are obsolete and will not be allowed in a future version of Octave";
bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1026
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1027 std::string nm = curr_lexer->m_fcn_file_full_name;
16914 bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1028
bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1029 if (nm.empty ())
bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1030 warning_with_id ("Octave:deprecated-syntax", "%s", msg);
bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1031 else
bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1032 warning_with_id ("Octave:deprecated-syntax",
bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1033 "%s; near line %d of file '%s'", msg,
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	1034 curr_lexer->m_filepos.line (), nm.c_str ());
16914 bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1035
bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1036 HANDLE_STRING_CONTINUATION;
bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1037 }
bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1038
16903 f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	1039 <DQ_STRING_START>\\{NL} {
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	1040 curr_lexer->lexer_debug ("<DQ_STRING_START>\\\\{NL}");
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	1041
16914 bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1042 HANDLE_STRING_CONTINUATION;
16903 f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	1043 }
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	1044
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	1045 <DQ_STRING_START>\\. {
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	1046 curr_lexer->lexer_debug ("<DQ_STRING_START>\\\\.");
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	1047
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	1048 curr_lexer->m_filepos.increment_column (yyleng);
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1049 curr_lexer->m_string_text += yytext[1];
16898 531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	1050 }
531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	1051
16914 bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1052 <DQ_STRING_START>\. {
bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1053 curr_lexer->lexer_debug ("<DQ_STRING_START>\\.");
bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1054
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	1055 curr_lexer->m_filepos.increment_column ();
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1056 curr_lexer->m_string_text += yytext[0];
16914 bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1057 }
bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1058
bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1059 <DQ_STRING_START>[^\.\\\r\n\"]+ {
bc12849bb6cc deprecate ... and whitespace/comments after continuation markers in strings John W. Eaton <jwe@octave.org> parents: 16904 diff changeset	1060 curr_lexer->lexer_debug ("<DQ_STRING_START>[^\\.\\\\\\r\\n\\\"]+");
16903 f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	1061
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	1062 curr_lexer->m_filepos.increment_column (yyleng);
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1063 curr_lexer->m_string_text += yytext;
16898 531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	1064 }
531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	1065
16903 f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	1066 <DQ_STRING_START>{NL} {
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	1067 curr_lexer->lexer_debug ("<DQ_STRING_START>{NL}");
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	1068
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1069 // Use current file position for error token.
23075 4e3d47dc7e25 move parse tree classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23061 diff changeset	1070 octave::token *tok
4e3d47dc7e25 move parse tree classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23061 diff changeset	1071 = new octave::token (LEXICAL_ERROR,
4e3d47dc7e25 move parse tree classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23061 diff changeset	1072 "unterminated character string constant",
27769 07ffed9878ad store begin and end position in tokens John W. Eaton <jwe@octave.org> parents: 27768 diff changeset	1073 curr_lexer->m_filepos, curr_lexer->m_filepos);
21064 a9f2c2d72892 handle lexical errors as parser errors (bug #46877) John W. Eaton <jwe@octave.org> parents: 21055 diff changeset	1074
a9f2c2d72892 handle lexical errors as parser errors (bug #46877) John W. Eaton <jwe@octave.org> parents: 21055 diff changeset	1075 curr_lexer->push_token (tok);
a9f2c2d72892 handle lexical errors as parser errors (bug #46877) John W. Eaton <jwe@octave.org> parents: 21055 diff changeset	1076
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	1077 curr_lexer->m_filepos.next_line ();
16903 f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	1078
21064 a9f2c2d72892 handle lexical errors as parser errors (bug #46877) John W. Eaton <jwe@octave.org> parents: 21055 diff changeset	1079 return curr_lexer->count_token_internal (LEXICAL_ERROR);
16903 f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	1080 }
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	1081
16898 531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	1082 %{
531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	1083 // Single-quoted character strings.
531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	1084 %}
531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	1085
16904 f29dd5a7591d more tweaks for parsing character strings John W. Eaton <jwe@octave.org> parents: 16903 diff changeset	1086 <SQ_STRING_START>\'\' {
f29dd5a7591d more tweaks for parsing character strings John W. Eaton <jwe@octave.org> parents: 16903 diff changeset	1087 curr_lexer->lexer_debug ("<SQ_STRING_START>\\'\\'");
16898 531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	1088
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	1089 curr_lexer->m_filepos.increment_column (yyleng);
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1090 curr_lexer->m_string_text += '\'';
16904 f29dd5a7591d more tweaks for parsing character strings John W. Eaton <jwe@octave.org> parents: 16903 diff changeset	1091 }
f29dd5a7591d more tweaks for parsing character strings John W. Eaton <jwe@octave.org> parents: 16903 diff changeset	1092
f29dd5a7591d more tweaks for parsing character strings John W. Eaton <jwe@octave.org> parents: 16903 diff changeset	1093 <SQ_STRING_START>\' {
f29dd5a7591d more tweaks for parsing character strings John W. Eaton <jwe@octave.org> parents: 16903 diff changeset	1094 curr_lexer->lexer_debug ("<SQ_STRING_START>\\'");
f29dd5a7591d more tweaks for parsing character strings John W. Eaton <jwe@octave.org> parents: 16903 diff changeset	1095
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1096 // m_tok_beg was set when we started parsing the string.
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1097 curr_lexer->m_tok_end = curr_lexer->m_filepos;
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	1098 curr_lexer->m_filepos.increment_column ();
16904 f29dd5a7591d more tweaks for parsing character strings John W. Eaton <jwe@octave.org> parents: 16903 diff changeset	1099
f29dd5a7591d more tweaks for parsing character strings John W. Eaton <jwe@octave.org> parents: 16903 diff changeset	1100 curr_lexer->pop_start_state ();
f29dd5a7591d more tweaks for parsing character strings John W. Eaton <jwe@octave.org> parents: 16903 diff changeset	1101
18224 615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	1102 if (curr_lexer->start_state() != COMMAND_START)
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	1103 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1104 curr_lexer->m_looking_for_object_index = true;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1105 curr_lexer->m_at_beginning_of_statement = false;
18224 615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	1106
23075 4e3d47dc7e25 move parse tree classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23061 diff changeset	1107 curr_lexer->push_token (new octave::token (SQ_STRING,
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1108 curr_lexer->m_string_text,
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1109 curr_lexer->m_tok_beg,
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1110 curr_lexer->m_tok_end));
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1111
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1112 curr_lexer->m_string_text = "";
18224 615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	1113
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	1114 return curr_lexer->count_token_internal (SQ_STRING);
615fdd2238c1 improve compatibility of command syntax parsing (bug #41032) Michael C. Grant <mcg@cvxr.com> parents: 18139 diff changeset	1115 }
16904 f29dd5a7591d more tweaks for parsing character strings John W. Eaton <jwe@octave.org> parents: 16903 diff changeset	1116 }
f29dd5a7591d more tweaks for parsing character strings John W. Eaton <jwe@octave.org> parents: 16903 diff changeset	1117
f29dd5a7591d more tweaks for parsing character strings John W. Eaton <jwe@octave.org> parents: 16903 diff changeset	1118 <SQ_STRING_START>[^\'\n\r]+ {
f29dd5a7591d more tweaks for parsing character strings John W. Eaton <jwe@octave.org> parents: 16903 diff changeset	1119 curr_lexer->lexer_debug ("<SQ_STRING_START>[^\\'\\n\\r]+");
f29dd5a7591d more tweaks for parsing character strings John W. Eaton <jwe@octave.org> parents: 16903 diff changeset	1120
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	1121 curr_lexer->m_filepos.increment_column (yyleng);
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1122 curr_lexer->m_string_text += yytext;
16898 531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	1123 }
531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	1124
531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	1125 <SQ_STRING_START>{NL} {
16903 f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	1126 curr_lexer->lexer_debug ("<SQ_STRING_START>{NL}");
f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	1127
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1128 // Use current file position for error token.
23075 4e3d47dc7e25 move parse tree classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23061 diff changeset	1129 octave::token *tok
4e3d47dc7e25 move parse tree classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23061 diff changeset	1130 = new octave::token (LEXICAL_ERROR,
4e3d47dc7e25 move parse tree classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23061 diff changeset	1131 "unterminated character string constant",
27769 07ffed9878ad store begin and end position in tokens John W. Eaton <jwe@octave.org> parents: 27768 diff changeset	1132 curr_lexer->m_filepos, curr_lexer->m_filepos);
21064 a9f2c2d72892 handle lexical errors as parser errors (bug #46877) John W. Eaton <jwe@octave.org> parents: 21055 diff changeset	1133
a9f2c2d72892 handle lexical errors as parser errors (bug #46877) John W. Eaton <jwe@octave.org> parents: 21055 diff changeset	1134 curr_lexer->push_token (tok);
a9f2c2d72892 handle lexical errors as parser errors (bug #46877) John W. Eaton <jwe@octave.org> parents: 21055 diff changeset	1135
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	1136 curr_lexer->m_filepos.next_line ();
16903 f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	1137
21064 a9f2c2d72892 handle lexical errors as parser errors (bug #46877) John W. Eaton <jwe@octave.org> parents: 21055 diff changeset	1138 return curr_lexer->count_token_internal (LEXICAL_ERROR);
16898 531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	1139 }
531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	1140
531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	1141 %{
18520 932aca9a7c57 Allow multi-level classdef package. Michael Goffioul <michael.goffioul@gmail.com> parents: 18497 diff changeset	1142 // Fully-qualified identifiers (used for classdef).
932aca9a7c57 Allow multi-level classdef package. Michael Goffioul <michael.goffioul@gmail.com> parents: 18497 diff changeset	1143 %}
932aca9a7c57 Allow multi-level classdef package. Michael Goffioul <michael.goffioul@gmail.com> parents: 18497 diff changeset	1144
932aca9a7c57 Allow multi-level classdef package. Michael Goffioul <michael.goffioul@gmail.com> parents: 18497 diff changeset	1145 <FQ_IDENT_START>{FQIDENT} {
26708 606605d0cd31 allow spaces in FQ_IDENT, SUPERCLASSREF, and METAQUERY tokens in lexer John W. Eaton <jwe@octave.org> parents: 26686 diff changeset	1146 curr_lexer->lexer_debug ("<FQ_IDENT_START>{FQIDENT}{S}*");
27052 44d1fe403c19 eliminate mysterious newline output (bug #44934) John W. Eaton <jwe@octave.org> parents: 26899 diff changeset	1147
18520 932aca9a7c57 Allow multi-level classdef package. Michael Goffioul <michael.goffioul@gmail.com> parents: 18497 diff changeset	1148 curr_lexer->pop_start_state ();
932aca9a7c57 Allow multi-level classdef package. Michael Goffioul <michael.goffioul@gmail.com> parents: 18497 diff changeset	1149
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1150 curr_lexer->update_token_positions (yyleng);
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1151
18520 932aca9a7c57 Allow multi-level classdef package. Michael Goffioul <michael.goffioul@gmail.com> parents: 18497 diff changeset	1152 int id_tok = curr_lexer->handle_fq_identifier ();
932aca9a7c57 Allow multi-level classdef package. Michael Goffioul <michael.goffioul@gmail.com> parents: 18497 diff changeset	1153
932aca9a7c57 Allow multi-level classdef package. Michael Goffioul <michael.goffioul@gmail.com> parents: 18497 diff changeset	1154 if (id_tok >= 0)
932aca9a7c57 Allow multi-level classdef package. Michael Goffioul <michael.goffioul@gmail.com> parents: 18497 diff changeset	1155 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1156 curr_lexer->m_looking_for_object_index = true;
18520 932aca9a7c57 Allow multi-level classdef package. Michael Goffioul <michael.goffioul@gmail.com> parents: 18497 diff changeset	1157
932aca9a7c57 Allow multi-level classdef package. Michael Goffioul <michael.goffioul@gmail.com> parents: 18497 diff changeset	1158 return curr_lexer->count_token_internal (id_tok);
932aca9a7c57 Allow multi-level classdef package. Michael Goffioul <michael.goffioul@gmail.com> parents: 18497 diff changeset	1159 }
932aca9a7c57 Allow multi-level classdef package. Michael Goffioul <michael.goffioul@gmail.com> parents: 18497 diff changeset	1160 }
932aca9a7c57 Allow multi-level classdef package. Michael Goffioul <michael.goffioul@gmail.com> parents: 18497 diff changeset	1161
932aca9a7c57 Allow multi-level classdef package. Michael Goffioul <michael.goffioul@gmail.com> parents: 18497 diff changeset	1162 <FQ_IDENT_START>{S}+ {
27052 44d1fe403c19 eliminate mysterious newline output (bug #44934) John W. Eaton <jwe@octave.org> parents: 26899 diff changeset	1163 curr_lexer->lexer_debug ("<FQ_IDENT_START>{S}+");
44d1fe403c19 eliminate mysterious newline output (bug #44934) John W. Eaton <jwe@octave.org> parents: 26899 diff changeset	1164
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	1165 curr_lexer->m_filepos.increment_column (yyleng);
18520 932aca9a7c57 Allow multi-level classdef package. Michael Goffioul <michael.goffioul@gmail.com> parents: 18497 diff changeset	1166
932aca9a7c57 Allow multi-level classdef package. Michael Goffioul <michael.goffioul@gmail.com> parents: 18497 diff changeset	1167 curr_lexer->mark_previous_token_trailing_space ();
932aca9a7c57 Allow multi-level classdef package. Michael Goffioul <michael.goffioul@gmail.com> parents: 18497 diff changeset	1168 }
932aca9a7c57 Allow multi-level classdef package. Michael Goffioul <michael.goffioul@gmail.com> parents: 18497 diff changeset	1169
27052 44d1fe403c19 eliminate mysterious newline output (bug #44934) John W. Eaton <jwe@octave.org> parents: 26899 diff changeset	1170 <FQ_IDENT_START>(\.\.\.){ANY_EXCEPT_NL}*{NL} {
44d1fe403c19 eliminate mysterious newline output (bug #44934) John W. Eaton <jwe@octave.org> parents: 26899 diff changeset	1171 curr_lexer->lexer_debug ("<FQ_IDENT_START>(\\.\\.\\.){ANY_EXCEPT_NL}*{NL}");
44d1fe403c19 eliminate mysterious newline output (bug #44934) John W. Eaton <jwe@octave.org> parents: 26899 diff changeset	1172
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	1173 curr_lexer->m_filepos.next_line ();
27052 44d1fe403c19 eliminate mysterious newline output (bug #44934) John W. Eaton <jwe@octave.org> parents: 26899 diff changeset	1174 }
44d1fe403c19 eliminate mysterious newline output (bug #44934) John W. Eaton <jwe@octave.org> parents: 26899 diff changeset	1175
44d1fe403c19 eliminate mysterious newline output (bug #44934) John W. Eaton <jwe@octave.org> parents: 26899 diff changeset	1176 <FQ_IDENT_START>{ANY_INCLUDING_NL} {
44d1fe403c19 eliminate mysterious newline output (bug #44934) John W. Eaton <jwe@octave.org> parents: 26899 diff changeset	1177 curr_lexer->lexer_debug ("<FQ_IDENT_START>{ANY_INCLUDING_NL}");
44d1fe403c19 eliminate mysterious newline output (bug #44934) John W. Eaton <jwe@octave.org> parents: 26899 diff changeset	1178
26708 606605d0cd31 allow spaces in FQ_IDENT, SUPERCLASSREF, and METAQUERY tokens in lexer John W. Eaton <jwe@octave.org> parents: 26686 diff changeset	1179 // If input doesn't match FQIDENT, return char and go to previous
606605d0cd31 allow spaces in FQ_IDENT, SUPERCLASSREF, and METAQUERY tokens in lexer John W. Eaton <jwe@octave.org> parents: 26686 diff changeset	1180 // start state.
27052 44d1fe403c19 eliminate mysterious newline output (bug #44934) John W. Eaton <jwe@octave.org> parents: 26899 diff changeset	1181
18520 932aca9a7c57 Allow multi-level classdef package. Michael Goffioul <michael.goffioul@gmail.com> parents: 18497 diff changeset	1182 yyless (0);
932aca9a7c57 Allow multi-level classdef package. Michael Goffioul <michael.goffioul@gmail.com> parents: 18497 diff changeset	1183 curr_lexer->pop_start_state ();
932aca9a7c57 Allow multi-level classdef package. Michael Goffioul <michael.goffioul@gmail.com> parents: 18497 diff changeset	1184 }
932aca9a7c57 Allow multi-level classdef package. Michael Goffioul <michael.goffioul@gmail.com> parents: 18497 diff changeset	1185
932aca9a7c57 Allow multi-level classdef package. Michael Goffioul <michael.goffioul@gmail.com> parents: 18497 diff changeset	1186 %{
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1187 // Imaginary numbers.
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1188 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1189
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1190 {NUMBER}{Im} {
16229 7b7b1e4968e8 use functions instead of token return macros in lexer John W. Eaton <jwe@octave.org> parents: 16228 diff changeset	1191 curr_lexer->lexer_debug ("{NUMBER}{Im}");
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1192
16361 e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1193 if (curr_lexer->previous_token_may_be_command ()
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1194 && curr_lexer->space_follows_previous_token ())
16257 db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	1195 {
db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	1196 yyless (0);
16361 e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1197 curr_lexer->push_start_state (COMMAND_START);
16257 db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	1198 }
db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	1199 else
db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	1200 {
16361 e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1201 int tok = curr_lexer->previous_token_value ();
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1202
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1203 if (curr_lexer->whitespace_is_significant ()
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1204 && curr_lexer->space_follows_previous_token ()
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1205 && ! (tok == '[' \|\| tok == '{'
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1206 \|\| curr_lexer->previous_token_is_binop ()))
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1207 {
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1208 yyless (0);
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1209 unput (',');
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1210 }
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1211 else
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1212 {
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1213 curr_lexer->handle_number ();
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1214 return curr_lexer->count_token_internal (IMAG_NUM);
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1215 }
16257 db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	1216 }
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1217 }
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1218
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1219 %{
15466 d174210ce1ec use ' instead of ` in error messages, warnings and most comments John W. Eaton <jwe@octave.org> parents: 14161 diff changeset	1220 // Real numbers. Don't grab the '.' part of a dot operator as part of
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1221 // the constant.
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1222 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1223
20588 e34692daf663 Extend parser to accept '_' in numbers. Rik <rik@octave.org> parents: 20547 diff changeset	1224 {D}{D_}/\.[\/\\^\'] \|
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1225 {NUMBER} {
20588 e34692daf663 Extend parser to accept '_' in numbers. Rik <rik@octave.org> parents: 20547 diff changeset	1226 curr_lexer->lexer_debug ("{D}{D_}/\\.[\\/\\\\^\\']\|{NUMBER}");
16257 db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	1227
16361 e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1228 if (curr_lexer->previous_token_may_be_command ()
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1229 && curr_lexer->space_follows_previous_token ())
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1230 {
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1231 yyless (0);
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1232 curr_lexer->push_start_state (COMMAND_START);
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1233 }
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1234 else
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1235 {
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1236 int tok = curr_lexer->previous_token_value ();
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1237
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1238 if (curr_lexer->whitespace_is_significant ()
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1239 && curr_lexer->space_follows_previous_token ()
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1240 && ! (tok == '[' \|\| tok == '{'
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1241 \|\| curr_lexer->previous_token_is_binop ()))
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1242 {
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1243 yyless (0);
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1244 unput (',');
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1245 }
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1246 else
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1247 {
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1248 curr_lexer->handle_number ();
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1249 return curr_lexer->count_token_internal (NUM);
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1250 }
e1dcd834751f and foo NUMBER as command syntax (bug #38565) John W. Eaton <jwe@octave.org> parents: 16360 diff changeset	1251 }
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1252 }
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1253
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1254 %{
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1255 // Eat whitespace. Whitespace inside matrix constants is handled by
4208 e96f52432059 [project @ 2002-12-03 19:48:57 by jwe] jwe parents: 4198 diff changeset	1256 // the <MATRIX_START> start state code above.
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1257 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1258
16363 d16c255299c0 recognize block comment begin while processing line comments (bug #38559) John W. Eaton <jwe@octave.org> parents: 16361 diff changeset	1259 {S}+ {
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	1260 curr_lexer->m_filepos.increment_column (yyleng);
16255 12bf6a3f8c45 store more info in token value class John W. Eaton <jwe@octave.org> parents: 16253 diff changeset	1261
12bf6a3f8c45 store more info in token value class John W. Eaton <jwe@octave.org> parents: 16253 diff changeset	1262 curr_lexer->mark_previous_token_trailing_space ();
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	1263 }
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	1264
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1265 %{
17247 e993fa124b46 Deprecate \ as continuation marker outside of double-quoted character strings. John W. Eaton <jwe@octave.org> parents: 17246 diff changeset	1266 // Continuation lines. Allow arbitrary text after continuations.
e993fa124b46 Deprecate \ as continuation marker outside of double-quoted character strings. John W. Eaton <jwe@octave.org> parents: 17246 diff changeset	1267 %}
e993fa124b46 Deprecate \ as continuation marker outside of double-quoted character strings. John W. Eaton <jwe@octave.org> parents: 17246 diff changeset	1268
18311 b14cdae65abd prevent lexer from matching patterns across CR line endings (bug #41281) John W. Eaton <jwe@octave.org> parents: 18246 diff changeset	1269 \.\.\.{ANY_EXCEPT_NL}*{NL} {
b14cdae65abd prevent lexer from matching patterns across CR line endings (bug #41281) John W. Eaton <jwe@octave.org> parents: 18246 diff changeset	1270 curr_lexer->lexer_debug ("\\.\\.\\.{ANY_EXCEPT_NL}*{NL}");
17247 e993fa124b46 Deprecate \ as continuation marker outside of double-quoted character strings. John W. Eaton <jwe@octave.org> parents: 17246 diff changeset	1271
e993fa124b46 Deprecate \ as continuation marker outside of double-quoted character strings. John W. Eaton <jwe@octave.org> parents: 17246 diff changeset	1272 curr_lexer->handle_continuation ();
e993fa124b46 Deprecate \ as continuation marker outside of double-quoted character strings. John W. Eaton <jwe@octave.org> parents: 17246 diff changeset	1273 }
e993fa124b46 Deprecate \ as continuation marker outside of double-quoted character strings. John W. Eaton <jwe@octave.org> parents: 17246 diff changeset	1274
e993fa124b46 Deprecate \ as continuation marker outside of double-quoted character strings. John W. Eaton <jwe@octave.org> parents: 17246 diff changeset	1275 %{
e993fa124b46 Deprecate \ as continuation marker outside of double-quoted character strings. John W. Eaton <jwe@octave.org> parents: 17246 diff changeset	1276 // Deprecated C preprocessor style continuation markers.
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1277 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1278
17246 8be8a65d3ca8 Ignore anything after the continuation marker '...' (bug #38653) Stefan Mahr <dac922@gmx.de> parents: 17244 diff changeset	1279 \\{S}*{NL} \|
18311 b14cdae65abd prevent lexer from matching patterns across CR line endings (bug #41281) John W. Eaton <jwe@octave.org> parents: 18246 diff changeset	1280 \\{S}{CCHAR}{ANY_EXCEPT_NL}{NL} {
b14cdae65abd prevent lexer from matching patterns across CR line endings (bug #41281) John W. Eaton <jwe@octave.org> parents: 18246 diff changeset	1281 curr_lexer->lexer_debug ("\\\\{S}{NL}\|\\\\{S}{CCHAR}{ANY_EXCEPT_NL}*{NL}");
17247 e993fa124b46 Deprecate \ as continuation marker outside of double-quoted character strings. John W. Eaton <jwe@octave.org> parents: 17246 diff changeset	1282
22505 7bdc80232cdc Expand warning for '\' continuation marker to recommend "..." (bug #48810). Rik <rik@octave.org> parents: 22323 diff changeset	1283 static const char *msg = "using continuation marker \\ outside of double quoted strings is deprecated and will be removed from a future version of Octave, use ... instead";
17247 e993fa124b46 Deprecate \ as continuation marker outside of double-quoted character strings. John W. Eaton <jwe@octave.org> parents: 17246 diff changeset	1284
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1285 std::string nm = curr_lexer->m_fcn_file_full_name;
17247 e993fa124b46 Deprecate \ as continuation marker outside of double-quoted character strings. John W. Eaton <jwe@octave.org> parents: 17246 diff changeset	1286
e993fa124b46 Deprecate \ as continuation marker outside of double-quoted character strings. John W. Eaton <jwe@octave.org> parents: 17246 diff changeset	1287 if (nm.empty ())
e993fa124b46 Deprecate \ as continuation marker outside of double-quoted character strings. John W. Eaton <jwe@octave.org> parents: 17246 diff changeset	1288 warning_with_id ("Octave:deprecated-syntax", "%s", msg);
e993fa124b46 Deprecate \ as continuation marker outside of double-quoted character strings. John W. Eaton <jwe@octave.org> parents: 17246 diff changeset	1289 else
e993fa124b46 Deprecate \ as continuation marker outside of double-quoted character strings. John W. Eaton <jwe@octave.org> parents: 17246 diff changeset	1290 warning_with_id ("Octave:deprecated-syntax",
e993fa124b46 Deprecate \ as continuation marker outside of double-quoted character strings. John W. Eaton <jwe@octave.org> parents: 17246 diff changeset	1291 "%s; near line %d of file '%s'", msg,
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	1292 curr_lexer->m_filepos.line (), nm.c_str ());
17343 6470a113eae2 correctly handle deprecated \ continuation markers John W. Eaton <jwe@octave.org> parents: 17247 diff changeset	1293
6470a113eae2 correctly handle deprecated \ continuation markers John W. Eaton <jwe@octave.org> parents: 17247 diff changeset	1294 curr_lexer->handle_continuation ();
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	1295 }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1296
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1297 %{
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1298 // End of file.
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1299 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1300
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	1301 <<EOF>> {
16164 c5bfdc4c0963 move end_of_input flag from octve_parser class to octave_lexer class John W. Eaton <jwe@octave.org> parents: 16158 diff changeset	1302 return curr_lexer->handle_end_of_input ();
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	1303 }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1304
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1305 %{
16259 0b5ab09dfce4 2/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16257 diff changeset	1306 // Identifiers.
18394 fc0ce9eb9d82 don't allow get and set followed by "(" to be recognized as keywords. John W. Eaton <jwe@octave.org> parents: 18341 diff changeset	1307
fc0ce9eb9d82 don't allow get and set followed by "(" to be recognized as keywords. John W. Eaton <jwe@octave.org> parents: 18341 diff changeset	1308 // Don't allow get and set to be recognized as keywords if they are
fc0ce9eb9d82 don't allow get and set followed by "(" to be recognized as keywords. John W. Eaton <jwe@octave.org> parents: 18341 diff changeset	1309 // followed by "(".
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1310 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1311
21705 764e586dca4b Avoid use of REJECT in parser (bug #45947). Rik <rik@octave.org> parents: 21635 diff changeset	1312 (set\|get){S}*\( {
21722 fb5dd9f7d697 * oct-parse.in.yy: Correct pattern string in call to HANDLE_IDENTIFIER. John W. Eaton <jwe@octave.org> parents: 21705 diff changeset	1313 HANDLE_IDENTIFIER ("(set\|get){S}*\\(", true);
18394 fc0ce9eb9d82 don't allow get and set followed by "(" to be recognized as keywords. John W. Eaton <jwe@octave.org> parents: 18341 diff changeset	1314 }
fc0ce9eb9d82 don't allow get and set followed by "(" to be recognized as keywords. John W. Eaton <jwe@octave.org> parents: 18341 diff changeset	1315
16257 db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	1316 {IDENT} {
18394 fc0ce9eb9d82 don't allow get and set followed by "(" to be recognized as keywords. John W. Eaton <jwe@octave.org> parents: 18341 diff changeset	1317 HANDLE_IDENTIFIER ("{IDENT}", false);
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	1318 }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1319
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1320 %{
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1321 // Superclass method identifiers.
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	1322 %}
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	1323
26708 606605d0cd31 allow spaces in FQ_IDENT, SUPERCLASSREF, and METAQUERY tokens in lexer John W. Eaton <jwe@octave.org> parents: 26686 diff changeset	1324 {FQIDENT}{S}@{S}{FQIDENT} {
606605d0cd31 allow spaces in FQ_IDENT, SUPERCLASSREF, and METAQUERY tokens in lexer John W. Eaton <jwe@octave.org> parents: 26686 diff changeset	1325 curr_lexer->lexer_debug ("{FQIDENT}{S}@{S}{FQIDENT}");
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	1326
16680 de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1327 if (curr_lexer->previous_token_may_be_command ())
de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1328 {
de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1329 yyless (0);
de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1330 curr_lexer->push_start_state (COMMAND_START);
de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1331 }
de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1332 else
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	1333 {
26899 236d8f52cbb3 identify "x .foo@bar" or "x @foo" as command syntax (bug #55891) John W. Eaton <jwe@octave.org> parents: 26740 diff changeset	1334 if (curr_lexer->m_at_beginning_of_statement)
236d8f52cbb3 identify "x .foo@bar" or "x @foo" as command syntax (bug #55891) John W. Eaton <jwe@octave.org> parents: 26740 diff changeset	1335 {
236d8f52cbb3 identify "x .foo@bar" or "x @foo" as command syntax (bug #55891) John W. Eaton <jwe@octave.org> parents: 26740 diff changeset	1336 std::string txt = yytext;
236d8f52cbb3 identify "x .foo@bar" or "x @foo" as command syntax (bug #55891) John W. Eaton <jwe@octave.org> parents: 26740 diff changeset	1337
236d8f52cbb3 identify "x .foo@bar" or "x @foo" as command syntax (bug #55891) John W. Eaton <jwe@octave.org> parents: 26740 diff changeset	1338 size_t at_or_dot_pos = txt.find_first_of ("@.");
236d8f52cbb3 identify "x .foo@bar" or "x @foo" as command syntax (bug #55891) John W. Eaton <jwe@octave.org> parents: 26740 diff changeset	1339
236d8f52cbb3 identify "x .foo@bar" or "x @foo" as command syntax (bug #55891) John W. Eaton <jwe@octave.org> parents: 26740 diff changeset	1340 if (at_or_dot_pos != std::string::npos)
236d8f52cbb3 identify "x .foo@bar" or "x @foo" as command syntax (bug #55891) John W. Eaton <jwe@octave.org> parents: 26740 diff changeset	1341 {
236d8f52cbb3 identify "x .foo@bar" or "x @foo" as command syntax (bug #55891) John W. Eaton <jwe@octave.org> parents: 26740 diff changeset	1342 size_t spc_pos = txt.find_first_of (" \t");
236d8f52cbb3 identify "x .foo@bar" or "x @foo" as command syntax (bug #55891) John W. Eaton <jwe@octave.org> parents: 26740 diff changeset	1343
236d8f52cbb3 identify "x .foo@bar" or "x @foo" as command syntax (bug #55891) John W. Eaton <jwe@octave.org> parents: 26740 diff changeset	1344 if (spc_pos != std::string::npos && spc_pos < at_or_dot_pos)
236d8f52cbb3 identify "x .foo@bar" or "x @foo" as command syntax (bug #55891) John W. Eaton <jwe@octave.org> parents: 26740 diff changeset	1345 {
236d8f52cbb3 identify "x .foo@bar" or "x @foo" as command syntax (bug #55891) John W. Eaton <jwe@octave.org> parents: 26740 diff changeset	1346 yyless (spc_pos);
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1347 curr_lexer->m_filepos.increment_column (spc_pos);
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1348
26899 236d8f52cbb3 identify "x .foo@bar" or "x @foo" as command syntax (bug #55891) John W. Eaton <jwe@octave.org> parents: 26740 diff changeset	1349 return curr_lexer->handle_identifier ();
236d8f52cbb3 identify "x .foo@bar" or "x @foo" as command syntax (bug #55891) John W. Eaton <jwe@octave.org> parents: 26740 diff changeset	1350 }
236d8f52cbb3 identify "x .foo@bar" or "x @foo" as command syntax (bug #55891) John W. Eaton <jwe@octave.org> parents: 26740 diff changeset	1351 }
236d8f52cbb3 identify "x .foo@bar" or "x @foo" as command syntax (bug #55891) John W. Eaton <jwe@octave.org> parents: 26740 diff changeset	1352 }
236d8f52cbb3 identify "x .foo@bar" or "x @foo" as command syntax (bug #55891) John W. Eaton <jwe@octave.org> parents: 26740 diff changeset	1353
28149 026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	1354 curr_lexer->m_looking_for_object_index = true;
026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	1355 curr_lexer->m_at_beginning_of_statement = false;
026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	1356
026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	1357 return curr_lexer->handle_superclass_identifier ();
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	1358 }
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	1359 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1360
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	1361 %{
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	1362 // Metaclass query
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1363 %}
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1364
26708 606605d0cd31 allow spaces in FQ_IDENT, SUPERCLASSREF, and METAQUERY tokens in lexer John W. Eaton <jwe@octave.org> parents: 26686 diff changeset	1365 \?{S}*{FQIDENT} {
606605d0cd31 allow spaces in FQ_IDENT, SUPERCLASSREF, and METAQUERY tokens in lexer John W. Eaton <jwe@octave.org> parents: 26686 diff changeset	1366 curr_lexer->lexer_debug ("\\?{S}*{FQIDENT}");
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1367
16680 de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1368 if (curr_lexer->previous_token_may_be_command ()
de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1369 && curr_lexer->space_follows_previous_token ())
de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1370 {
de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1371 yyless (0);
de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1372 curr_lexer->push_start_state (COMMAND_START);
de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1373 }
de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1374 else
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	1375 {
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1376 curr_lexer->update_token_positions (yyleng);
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1377
16680 de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1378 int id_tok = curr_lexer->handle_meta_identifier ();
de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1379
de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1380 if (id_tok >= 0)
de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1381 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1382 curr_lexer->m_looking_for_object_index = true;
16680 de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1383
16683 e1c6ad54259f maint: periodic merge of default to classdef John W. Eaton <jwe@octave.org> parents: 16645 16681 diff changeset	1384 return curr_lexer->count_token_internal (id_tok);
16680 de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1385 }
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	1386 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1387 }
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	1388
26740 cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1389 \@ \|
cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1390 \@{S}*{FQIDENT} {
cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1391 curr_lexer->lexer_debug ("\\@\|\\@{S}*{FQIDENT}");
18492 e4c319ed2414 Fix regression, allow space-separated cell array of function handles (bug #41569) Mike Miller <mtmiller@ieee.org> parents: 18428 diff changeset	1392
16334 06aa4c0f2018 handle foo @... as command syntax John W. Eaton <jwe@octave.org> parents: 16325 diff changeset	1393 if (curr_lexer->previous_token_may_be_command ()
06aa4c0f2018 handle foo @... as command syntax John W. Eaton <jwe@octave.org> parents: 16325 diff changeset	1394 && curr_lexer->space_follows_previous_token ())
06aa4c0f2018 handle foo @... as command syntax John W. Eaton <jwe@octave.org> parents: 16325 diff changeset	1395 {
06aa4c0f2018 handle foo @... as command syntax John W. Eaton <jwe@octave.org> parents: 16325 diff changeset	1396 yyless (0);
06aa4c0f2018 handle foo @... as command syntax John W. Eaton <jwe@octave.org> parents: 16325 diff changeset	1397 curr_lexer->push_start_state (COMMAND_START);
06aa4c0f2018 handle foo @... as command syntax John W. Eaton <jwe@octave.org> parents: 16325 diff changeset	1398 }
06aa4c0f2018 handle foo @... as command syntax John W. Eaton <jwe@octave.org> parents: 16325 diff changeset	1399 else
06aa4c0f2018 handle foo @... as command syntax John W. Eaton <jwe@octave.org> parents: 16325 diff changeset	1400 {
26740 cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1401 int tok_val = curr_lexer->previous_token_value ();
18492 e4c319ed2414 Fix regression, allow space-separated cell array of function handles (bug #41569) Mike Miller <mtmiller@ieee.org> parents: 18428 diff changeset	1402
e4c319ed2414 Fix regression, allow space-separated cell array of function handles (bug #41569) Mike Miller <mtmiller@ieee.org> parents: 18428 diff changeset	1403 if (curr_lexer->whitespace_is_significant ()
e4c319ed2414 Fix regression, allow space-separated cell array of function handles (bug #41569) Mike Miller <mtmiller@ieee.org> parents: 18428 diff changeset	1404 && curr_lexer->space_follows_previous_token ()
26740 cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1405 && ! (tok_val == '[' \|\| tok_val == '{'
18492 e4c319ed2414 Fix regression, allow space-separated cell array of function handles (bug #41569) Mike Miller <mtmiller@ieee.org> parents: 18428 diff changeset	1406 \|\| curr_lexer->previous_token_is_binop ()))
e4c319ed2414 Fix regression, allow space-separated cell array of function handles (bug #41569) Mike Miller <mtmiller@ieee.org> parents: 18428 diff changeset	1407 {
e4c319ed2414 Fix regression, allow space-separated cell array of function handles (bug #41569) Mike Miller <mtmiller@ieee.org> parents: 18428 diff changeset	1408 yyless (0);
e4c319ed2414 Fix regression, allow space-separated cell array of function handles (bug #41569) Mike Miller <mtmiller@ieee.org> parents: 18428 diff changeset	1409 unput (',');
e4c319ed2414 Fix regression, allow space-separated cell array of function handles (bug #41569) Mike Miller <mtmiller@ieee.org> parents: 18428 diff changeset	1410 }
e4c319ed2414 Fix regression, allow space-separated cell array of function handles (bug #41569) Mike Miller <mtmiller@ieee.org> parents: 18428 diff changeset	1411 else
e4c319ed2414 Fix regression, allow space-separated cell array of function handles (bug #41569) Mike Miller <mtmiller@ieee.org> parents: 18428 diff changeset	1412 {
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1413 curr_lexer->update_token_positions (yyleng);
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1414
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1415 curr_lexer->m_at_beginning_of_statement = false;
18492 e4c319ed2414 Fix regression, allow space-separated cell array of function handles (bug #41569) Mike Miller <mtmiller@ieee.org> parents: 18428 diff changeset	1416
26740 cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1417 std::string ident = yytext;
cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1418
cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1419 if (ident == "@")
cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1420 {
cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1421 curr_lexer->m_looking_at_function_handle++;
cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1422 curr_lexer->m_looking_for_object_index = false;
cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1423
cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1424 return curr_lexer->count_token ('@');
cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1425 }
cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1426 else
cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1427 {
cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1428 ident = ident.substr (1);
cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1429 ident.erase (std::remove_if (ident.begin (), ident.end (),
cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1430 is_space_or_tab), ident.end ());
cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1431
cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1432 octave::token *tok;
cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1433
28156 22cddebcb0d0 allow @get and @set to work properly again (bug #57988) John W. Eaton <jwe@octave.org> parents: 28149 diff changeset	1434 if (octave::iskeyword (ident))
26740 cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1435 tok = new octave::token (LEXICAL_ERROR,
cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1436 "function handles may not refer to keywords",
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1437 curr_lexer->m_tok_beg,
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1438 curr_lexer->m_tok_end);
26740 cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1439 else
cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1440 {
cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1441 curr_lexer->m_looking_for_object_index = true;
cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1442
cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1443 tok = new octave::token (FCN_HANDLE, ident,
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1444 curr_lexer->m_tok_beg,
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1445 curr_lexer->m_tok_end);
26740 cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1446 }
cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1447
cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1448 curr_lexer->push_token (tok);
cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1449
cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1450 return curr_lexer->count_token_internal (tok->token_value ());
cf271740922a allow parsing of function handles of the form @foo.bar John W. Eaton <jwe@octave.org> parents: 26718 diff changeset	1451 }
18492 e4c319ed2414 Fix regression, allow space-separated cell array of function handles (bug #41569) Mike Miller <mtmiller@ieee.org> parents: 18428 diff changeset	1452 }
16334 06aa4c0f2018 handle foo @... as command syntax John W. Eaton <jwe@octave.org> parents: 16325 diff changeset	1453 }
4342 813effe14ee1 [project @ 2003-02-20 08:35:55 by jwe] jwe parents: 4323 diff changeset	1454 }
813effe14ee1 [project @ 2003-02-20 08:35:55 by jwe] jwe parents: 4323 diff changeset	1455
813effe14ee1 [project @ 2003-02-20 08:35:55 by jwe] jwe parents: 4323 diff changeset	1456 %{
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1457 // A new line character. New line characters inside matrix constants
4208 e96f52432059 [project @ 2002-12-03 19:48:57 by jwe] jwe parents: 4198 diff changeset	1458 // are handled by the <MATRIX_START> start state code above. If closest
985 4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe] jwe parents: 975 diff changeset	1459 // nesting is inside parentheses, don't return a row separator.
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1460 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1461
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	1462 {NL} {
16229 7b7b1e4968e8 use functions instead of token return macros in lexer John W. Eaton <jwe@octave.org> parents: 16228 diff changeset	1463 curr_lexer->lexer_debug ("{NL}");
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1464
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1465 if (curr_lexer->m_nesting_level.is_paren ())
16309 e608de76742c allow newline to terminate anonymous function definition John W. Eaton <jwe@octave.org> parents: 16299 diff changeset	1466 {
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	1467 curr_lexer->m_filepos.next_line ();
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1468
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1469 curr_lexer->m_at_beginning_of_statement = false;
21102 dfcb9d74b253 Rename local gripe_XXX functions to err_XXX or warn_XXX. Rik <rik@octave.org> parents: 21100 diff changeset	1470 curr_lexer->warn_language_extension
16309 e608de76742c allow newline to terminate anonymous function definition John W. Eaton <jwe@octave.org> parents: 16299 diff changeset	1471 ("bare newline inside parentheses");
e608de76742c allow newline to terminate anonymous function definition John W. Eaton <jwe@octave.org> parents: 16299 diff changeset	1472 }
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1473 else if (curr_lexer->m_nesting_level.none ()
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1474 \|\| curr_lexer->m_nesting_level.is_anon_fcn_body ())
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	1475 {
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1476 curr_lexer->update_token_positions (yyleng);
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	1477 curr_lexer->m_filepos.next_line ();
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1478
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1479 curr_lexer->m_at_beginning_of_statement = true;
21064 a9f2c2d72892 handle lexical errors as parser errors (bug #46877) John W. Eaton <jwe@octave.org> parents: 21055 diff changeset	1480
16229 7b7b1e4968e8 use functions instead of token return macros in lexer John W. Eaton <jwe@octave.org> parents: 16228 diff changeset	1481 return curr_lexer->count_token ('\n');
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	1482 }
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1483 else if (curr_lexer->m_nesting_level.is_bracket_or_brace ())
21064 a9f2c2d72892 handle lexical errors as parser errors (bug #46877) John W. Eaton <jwe@octave.org> parents: 21055 diff changeset	1484 {
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1485 curr_lexer->update_token_positions (yyleng);
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1486 curr_lexer->m_filepos.next_line ();
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1487
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1488 // Use current file position for error token.
23075 4e3d47dc7e25 move parse tree classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23061 diff changeset	1489 octave::token *tok
4e3d47dc7e25 move parse tree classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23061 diff changeset	1490 = new octave::token (LEXICAL_ERROR,
4e3d47dc7e25 move parse tree classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23061 diff changeset	1491 "unexpected internal lexer error",
27769 07ffed9878ad store begin and end position in tokens John W. Eaton <jwe@octave.org> parents: 27768 diff changeset	1492 curr_lexer->m_filepos, curr_lexer->m_filepos);
21064 a9f2c2d72892 handle lexical errors as parser errors (bug #46877) John W. Eaton <jwe@octave.org> parents: 21055 diff changeset	1493
a9f2c2d72892 handle lexical errors as parser errors (bug #46877) John W. Eaton <jwe@octave.org> parents: 21055 diff changeset	1494 curr_lexer->push_token (tok);
a9f2c2d72892 handle lexical errors as parser errors (bug #46877) John W. Eaton <jwe@octave.org> parents: 21055 diff changeset	1495
a9f2c2d72892 handle lexical errors as parser errors (bug #46877) John W. Eaton <jwe@octave.org> parents: 21055 diff changeset	1496 return curr_lexer->count_token_internal (LEXICAL_ERROR);
a9f2c2d72892 handle lexical errors as parser errors (bug #46877) John W. Eaton <jwe@octave.org> parents: 21055 diff changeset	1497 }
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	1498 }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1499
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1500 %{
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1501 // Single quote can either be the beginning of a string or a transpose
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1502 // operator.
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1503 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1504
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	1505 "'" {
16229 7b7b1e4968e8 use functions instead of token return macros in lexer John W. Eaton <jwe@octave.org> parents: 16228 diff changeset	1506 curr_lexer->lexer_debug ("'");
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1507
16275 dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1508 if (curr_lexer->previous_token_may_be_command ()
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1509 && curr_lexer->space_follows_previous_token ())
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1510 {
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	1511 curr_lexer->m_filepos.increment_column ();
16275 dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1512 curr_lexer->push_start_state (COMMAND_START);
16898 531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	1513 curr_lexer->begin_string (SQ_STRING_START);
16275 dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1514 }
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1515 else if (curr_lexer->m_at_beginning_of_statement)
16681 d3619d4d267c recognize character string at beginning of statement (bug #38926, #38958) John W. Eaton <jwe@octave.org> parents: 16680 diff changeset	1516 {
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	1517 curr_lexer->m_filepos.increment_column ();
16898 531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	1518 curr_lexer->begin_string (SQ_STRING_START);
16681 d3619d4d267c recognize character string at beginning of statement (bug #38926, #38958) John W. Eaton <jwe@octave.org> parents: 16680 diff changeset	1519 }
16275 dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1520 else
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	1521 {
16275 dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1522 int tok = curr_lexer->previous_token_value ();
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1523
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1524 if (curr_lexer->whitespace_is_significant ())
16257 db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	1525 {
16275 dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1526 if (curr_lexer->space_follows_previous_token ())
16257 db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	1527 {
16275 dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1528 if (tok == '[' \|\| tok == '{'
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1529 \|\| curr_lexer->previous_token_is_binop ())
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1530 {
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	1531 curr_lexer->m_filepos.increment_column ();
16898 531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	1532 curr_lexer->begin_string (SQ_STRING_START);
16275 dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1533 }
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1534 else
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1535 {
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1536 yyless (0);
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1537 curr_lexer->xunput (',');
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1538 }
16257 db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	1539 }
db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	1540 else
db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	1541 {
16275 dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1542 if (tok == '[' \|\| tok == '{'
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1543 \|\| curr_lexer->previous_token_is_binop ()
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1544 \|\| curr_lexer->previous_token_is_keyword ())
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1545 {
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	1546 curr_lexer->m_filepos.increment_column ();
16898 531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	1547 curr_lexer->begin_string (SQ_STRING_START);
16275 dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1548 }
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1549 else
25719 e3c612c0b744 track column count in one more place in lexer John W. Eaton <jwe@octave.org> parents: 25708 diff changeset	1550 {
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	1551 curr_lexer->m_filepos.increment_column ();
25719 e3c612c0b744 track column count in one more place in lexer John W. Eaton <jwe@octave.org> parents: 25708 diff changeset	1552 return curr_lexer->count_token (HERMITIAN);
e3c612c0b744 track column count in one more place in lexer John W. Eaton <jwe@octave.org> parents: 25708 diff changeset	1553 }
16257 db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	1554 }
db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	1555 }
db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	1556 else
db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	1557 {
16275 dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1558 if (! tok \|\| tok == '[' \|\| tok == '{' \|\| tok == '('
16267 15f55df088e7 6/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16265 diff changeset	1559 \|\| curr_lexer->previous_token_is_binop ()
15f55df088e7 6/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16265 diff changeset	1560 \|\| curr_lexer->previous_token_is_keyword ())
16257 db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	1561 {
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	1562 curr_lexer->m_filepos.increment_column ();
16898 531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	1563 curr_lexer->begin_string (SQ_STRING_START);
16257 db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	1564 }
db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	1565 else
25719 e3c612c0b744 track column count in one more place in lexer John W. Eaton <jwe@octave.org> parents: 25708 diff changeset	1566 {
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	1567 curr_lexer->m_filepos.increment_column ();
25719 e3c612c0b744 track column count in one more place in lexer John W. Eaton <jwe@octave.org> parents: 25708 diff changeset	1568 return curr_lexer->count_token (HERMITIAN);
e3c612c0b744 track column count in one more place in lexer John W. Eaton <jwe@octave.org> parents: 25708 diff changeset	1569 }
16257 db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	1570 }
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	1571 }
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	1572 }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1573
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1574 %{
971 fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe] jwe parents: 970 diff changeset	1575 // Double quotes always begin strings.
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe] jwe parents: 970 diff changeset	1576 %}
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe] jwe parents: 970 diff changeset	1577
973 46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	1578 \" {
16903 f21194531877 improve character string handling in the lexer John W. Eaton <jwe@octave.org> parents: 16898 diff changeset	1579 curr_lexer->lexer_debug ("\\\"");
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1580
16275 dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1581 if (curr_lexer->previous_token_may_be_command ()
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1582 && curr_lexer->space_follows_previous_token ())
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1583 {
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	1584 curr_lexer->m_filepos.increment_column ();
16275 dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1585 curr_lexer->push_start_state (COMMAND_START);
16898 531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	1586 curr_lexer->begin_string (DQ_STRING_START);
16275 dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1587 }
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1588 else
16261 b45a90cdb0ae 3/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16259 diff changeset	1589 {
16275 dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1590 int tok = curr_lexer->previous_token_value ();
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1591
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1592 if (curr_lexer->whitespace_is_significant ())
16261 b45a90cdb0ae 3/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16259 diff changeset	1593 {
16275 dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1594 if (curr_lexer->space_follows_previous_token ())
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1595 {
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1596 if (tok == '[' \|\| tok == '{'
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1597 \|\| curr_lexer->previous_token_is_binop ())
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1598 {
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	1599 curr_lexer->m_filepos.increment_column ();
16898 531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	1600 curr_lexer->begin_string (DQ_STRING_START);
16275 dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1601 }
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1602 else
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1603 {
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1604 yyless (0);
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1605 curr_lexer->xunput (',');
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1606 }
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1607 }
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1608 else
16261 b45a90cdb0ae 3/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16259 diff changeset	1609 {
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	1610 curr_lexer->m_filepos.increment_column ();
16898 531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	1611 curr_lexer->begin_string (DQ_STRING_START);
16261 b45a90cdb0ae 3/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16259 diff changeset	1612 }
b45a90cdb0ae 3/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16259 diff changeset	1613 }
b45a90cdb0ae 3/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16259 diff changeset	1614 else
b45a90cdb0ae 3/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16259 diff changeset	1615 {
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	1616 curr_lexer->m_filepos.increment_column ();
16898 531473481084 rewrite string parsing to avoid unlimited lookahead John W. Eaton <jwe@octave.org> parents: 16788 diff changeset	1617 curr_lexer->begin_string (DQ_STRING_START);
16261 b45a90cdb0ae 3/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16259 diff changeset	1618 }
b45a90cdb0ae 3/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16259 diff changeset	1619 }
b45a90cdb0ae 3/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16259 diff changeset	1620 }
971 fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe] jwe parents: 970 diff changeset	1621
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe] jwe parents: 970 diff changeset	1622 %{
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1623 // Other operators.
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1624 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1625
16275 dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1626 ":" { CMD_OR_OP (":", ':', true); }
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1627 ".+" { CMD_OR_OP (".+", EPLUS, false); }
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1628 ".-" { CMD_OR_OP (".-", EMINUS, false); }
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1629 "." { CMD_OR_OP (".", EMUL, true); }
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1630 "./" { CMD_OR_OP ("./", EDIV, true); }
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1631 ".\\" { CMD_OR_OP (".\\", ELEFTDIV, true); }
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1632 ".^" { CMD_OR_OP (".^", EPOW, true); }
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1633 "." { CMD_OR_OP (".", EPOW, false); }
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1634 "<=" { CMD_OR_OP ("<=", EXPR_LE, true); }
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1635 "==" { CMD_OR_OP ("==", EXPR_EQ, true); }
27975 6931d95d1967 Use "!=" in preference to "~=" everywhere in code. Rik <rik@octave.org> parents: 27925 diff changeset	1636 "!=" { CMD_OR_OP ("!=", EXPR_NE, false); }
16275 dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1637 "~=" { CMD_OR_OP ("~=", EXPR_NE, true); }
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1638 ">=" { CMD_OR_OP (">=", EXPR_GE, true); }
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1639 "&" { CMD_OR_OP ("&", EXPR_AND, true); }
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1640 "\|" { CMD_OR_OP ("\|", EXPR_OR, true); }
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1641 "<" { CMD_OR_OP ("<", EXPR_LT, true); }
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1642 ">" { CMD_OR_OP (">", EXPR_GT, true); }
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1643 "" { CMD_OR_OP ("", '*', true); }
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1644 "/" { CMD_OR_OP ("/", '/', true); }
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1645
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1646 %{
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1647 // In Matlab, '\' may also trigger command syntax.
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1648 %}
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1649
28149 026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	1650 "\\" {
026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	1651 curr_lexer->lexer_debug ("\\");
026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	1652
026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	1653 return curr_lexer->handle_op (LEFTDIV);
026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	1654 }
16275 dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1655
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1656 "^" { CMD_OR_OP ("^", POW, true); }
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1657 "" { CMD_OR_OP ("", POW, false); }
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1658 "&&" { CMD_OR_OP ("&&", EXPR_AND_AND, true); }
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1659 "\|\|" { CMD_OR_OP ("\|\|", EXPR_OR_OR, true); }
16265 71ee3afedb69 5/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16263 diff changeset	1660
71ee3afedb69 5/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16263 diff changeset	1661 ";" {
28149 026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	1662 curr_lexer->lexer_debug (";");
026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	1663
16265 71ee3afedb69 5/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16263 diff changeset	1664 bool at_beginning_of_statement
71ee3afedb69 5/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16263 diff changeset	1665 = (! (curr_lexer->whitespace_is_significant ()
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1666 \|\| curr_lexer->m_looking_at_object_index.front ()));
16265 71ee3afedb69 5/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16263 diff changeset	1667
28149 026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	1668 return curr_lexer->handle_op (';', at_beginning_of_statement);
16263 9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1669 }
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1670
16275 dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1671 "+" { CMD_OR_UNARY_OP ("+", '+', true); }
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1672 "-" { CMD_OR_UNARY_OP ("-", '-', true); }
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1673
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1674 "~" { CMD_OR_UNARY_OP ("~", EXPR_NOT, true); }
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1675 "!" { CMD_OR_UNARY_OP ("!", EXPR_NOT, false); }
16263 9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1676
16229 7b7b1e4968e8 use functions instead of token return macros in lexer John W. Eaton <jwe@octave.org> parents: 16228 diff changeset	1677 "," {
28149 026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	1678 curr_lexer->lexer_debug (",");
026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	1679
16265 71ee3afedb69 5/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16263 diff changeset	1680 bool at_beginning_of_statement
71ee3afedb69 5/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16263 diff changeset	1681 = (! (curr_lexer->whitespace_is_significant ()
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1682 \|\| curr_lexer->m_looking_at_object_index.front ()));
16265 71ee3afedb69 5/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16263 diff changeset	1683
28149 026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	1684 return curr_lexer->handle_op (',', at_beginning_of_statement);
16229 7b7b1e4968e8 use functions instead of token return macros in lexer John W. Eaton <jwe@octave.org> parents: 16228 diff changeset	1685 }
7b7b1e4968e8 use functions instead of token return macros in lexer John W. Eaton <jwe@octave.org> parents: 16228 diff changeset	1686
7b7b1e4968e8 use functions instead of token return macros in lexer John W. Eaton <jwe@octave.org> parents: 16228 diff changeset	1687 ".'" {
28149 026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	1688 curr_lexer->lexer_debug (".'");
026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	1689
026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	1690 return curr_lexer->handle_op (TRANSPOSE);
16229 7b7b1e4968e8 use functions instead of token return macros in lexer John W. Eaton <jwe@octave.org> parents: 16228 diff changeset	1691 }
7b7b1e4968e8 use functions instead of token return macros in lexer John W. Eaton <jwe@octave.org> parents: 16228 diff changeset	1692
16680 de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1693 "++" { CMD_OR_UNARY_OP ("++", PLUS_PLUS, false); }
de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1694 "--" { CMD_OR_UNARY_OP ("--", MINUS_MINUS, false); }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1695
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	1696 "(" {
16229 7b7b1e4968e8 use functions instead of token return macros in lexer John W. Eaton <jwe@octave.org> parents: 16228 diff changeset	1697 curr_lexer->lexer_debug ("(");
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1698
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1699 curr_lexer->update_token_positions (yyleng);
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1700
16263 9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1701 bool unput_comma = false;
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1702
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1703 if (curr_lexer->whitespace_is_significant ()
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1704 && curr_lexer->space_follows_previous_token ())
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1705 {
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1706 int tok = curr_lexer->previous_token_value ();
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1707
16267 15f55df088e7 6/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16265 diff changeset	1708 if (! (tok == '[' \|\| tok == '{'
16263 9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1709 \|\| curr_lexer->previous_token_is_binop ()))
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1710 unput_comma = true;
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1711 }
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1712
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1713 if (unput_comma)
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1714 {
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1715 yyless (0);
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1716 curr_lexer->xunput (',');
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1717 }
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1718 else
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1719 {
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1720 curr_lexer->update_token_positions (yyleng);
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1721
16263 9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1722 // If we are looking for an object index, then push TRUE for
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1723 // m_looking_at_object_index. Otherwise, just push whatever state
16263 9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1724 // is current (so that we can pop it off the stack when we find
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1725 // the matching close paren).
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1726
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1727 curr_lexer->m_looking_at_object_index.push_front
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1728 (curr_lexer->m_looking_for_object_index);
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1729
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1730 curr_lexer->m_looking_at_indirect_ref = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1731 curr_lexer->m_looking_for_object_index = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1732 curr_lexer->m_at_beginning_of_statement = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1733
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1734 curr_lexer->m_nesting_level.paren ();
16263 9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1735
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1736 return curr_lexer->handle_token ('(');
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1737 }
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	1738 }
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	1739
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	1740 ")" {
16229 7b7b1e4968e8 use functions instead of token return macros in lexer John W. Eaton <jwe@octave.org> parents: 16228 diff changeset	1741 curr_lexer->lexer_debug (")");
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1742
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1743 curr_lexer->update_token_positions (yyleng);
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1744
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1745 curr_lexer->m_nesting_level.remove ();
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1746
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1747 curr_lexer->m_looking_at_object_index.pop_front ();
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1748
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1749 curr_lexer->m_looking_for_object_index = true;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1750 curr_lexer->m_at_beginning_of_statement = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1751
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1752 if (curr_lexer->m_looking_at_anon_fcn_args)
16265 71ee3afedb69 5/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16263 diff changeset	1753 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1754 curr_lexer->m_looking_at_anon_fcn_args = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1755 curr_lexer->m_nesting_level.anon_fcn_body ();
16265 71ee3afedb69 5/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16263 diff changeset	1756 }
13237 1bfca2bbea8b fix parsing of anonymous functions inside cell array lists. John W. Eaton <jwe@octave.org> parents: 12801 diff changeset	1757
16229 7b7b1e4968e8 use functions instead of token return macros in lexer John W. Eaton <jwe@octave.org> parents: 16228 diff changeset	1758 return curr_lexer->count_token (')');
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	1759 }
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	1760
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	1761 "." {
16229 7b7b1e4968e8 use functions instead of token return macros in lexer John W. Eaton <jwe@octave.org> parents: 16228 diff changeset	1762 curr_lexer->lexer_debug (".");
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	1763
16325 fc565603ccbb also accept "." as possibly beginning a command John W. Eaton <jwe@octave.org> parents: 16320 diff changeset	1764 if (curr_lexer->previous_token_may_be_command ()
fc565603ccbb also accept "." as possibly beginning a command John W. Eaton <jwe@octave.org> parents: 16320 diff changeset	1765 && curr_lexer->space_follows_previous_token ())
fc565603ccbb also accept "." as possibly beginning a command John W. Eaton <jwe@octave.org> parents: 16320 diff changeset	1766 {
fc565603ccbb also accept "." as possibly beginning a command John W. Eaton <jwe@octave.org> parents: 16320 diff changeset	1767 yyless (0);
fc565603ccbb also accept "." as possibly beginning a command John W. Eaton <jwe@octave.org> parents: 16320 diff changeset	1768 curr_lexer->push_start_state (COMMAND_START);
fc565603ccbb also accept "." as possibly beginning a command John W. Eaton <jwe@octave.org> parents: 16320 diff changeset	1769 }
fc565603ccbb also accept "." as possibly beginning a command John W. Eaton <jwe@octave.org> parents: 16320 diff changeset	1770 else
fc565603ccbb also accept "." as possibly beginning a command John W. Eaton <jwe@octave.org> parents: 16320 diff changeset	1771 {
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1772 curr_lexer->update_token_positions (yyleng);
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1773
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1774 curr_lexer->m_looking_for_object_index = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1775 curr_lexer->m_at_beginning_of_statement = false;
16325 fc565603ccbb also accept "." as possibly beginning a command John W. Eaton <jwe@octave.org> parents: 16320 diff changeset	1776
fc565603ccbb also accept "." as possibly beginning a command John W. Eaton <jwe@octave.org> parents: 16320 diff changeset	1777 return curr_lexer->handle_token ('.');
fc565603ccbb also accept "." as possibly beginning a command John W. Eaton <jwe@octave.org> parents: 16320 diff changeset	1778 }
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	1779 }
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1780
16229 7b7b1e4968e8 use functions instead of token return macros in lexer John W. Eaton <jwe@octave.org> parents: 16228 diff changeset	1781 %{
16257 db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	1782 // = and op= operators.
16229 7b7b1e4968e8 use functions instead of token return macros in lexer John W. Eaton <jwe@octave.org> parents: 16228 diff changeset	1783 %}
7b7b1e4968e8 use functions instead of token return macros in lexer John W. Eaton <jwe@octave.org> parents: 16228 diff changeset	1784
16360 11115c237231 recognize variables when parsing (bug #38576) John W. Eaton <jwe@octave.org> parents: 16337 diff changeset	1785 "=" {
28149 026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	1786 curr_lexer->lexer_debug ("=");
026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	1787
16360 11115c237231 recognize variables when parsing (bug #38576) John W. Eaton <jwe@octave.org> parents: 16337 diff changeset	1788 curr_lexer->maybe_mark_previous_token_as_variable ();
11115c237231 recognize variables when parsing (bug #38576) John W. Eaton <jwe@octave.org> parents: 16337 diff changeset	1789
28149 026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	1790 return curr_lexer->handle_op ('=');
16360 11115c237231 recognize variables when parsing (bug #38576) John W. Eaton <jwe@octave.org> parents: 16337 diff changeset	1791 }
11115c237231 recognize variables when parsing (bug #38576) John W. Eaton <jwe@octave.org> parents: 16337 diff changeset	1792
16680 de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1793 "+=" { CMD_OR_COMPUTED_ASSIGN_OP ("+=", ADD_EQ); }
de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1794 "-=" { CMD_OR_COMPUTED_ASSIGN_OP ("-=", SUB_EQ); }
de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1795 "=" { CMD_OR_COMPUTED_ASSIGN_OP ("=", MUL_EQ); }
de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1796 "/=" { CMD_OR_COMPUTED_ASSIGN_OP ("/=", DIV_EQ); }
de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1797 "\\=" { CMD_OR_COMPUTED_ASSIGN_OP ("\\=", LEFTDIV_EQ); }
de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1798 ".+=" { CMD_OR_COMPUTED_ASSIGN_OP (".+=", ADD_EQ); }
de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1799 ".-=" { CMD_OR_COMPUTED_ASSIGN_OP (".-=", SUB_EQ); }
de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1800 ".=" { CMD_OR_COMPUTED_ASSIGN_OP (".=", EMUL_EQ); }
de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1801 "./=" { CMD_OR_COMPUTED_ASSIGN_OP ("./=", EDIV_EQ); }
de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1802 ".\\=" { CMD_OR_COMPUTED_ASSIGN_OP (".\\=", ELEFTDIV_EQ); }
de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1803 "^=" { CMD_OR_COMPUTED_ASSIGN_OP ("^=", POW_EQ); }
de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1804 "**=" { CMD_OR_COMPUTED_ASSIGN_OP ("^=", POW_EQ); }
de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1805 ".^=" { CMD_OR_COMPUTED_ASSIGN_OP (".^=", EPOW_EQ); }
de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1806 ".**=" { CMD_OR_COMPUTED_ASSIGN_OP (".^=", EPOW_EQ); }
de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1807 "&=" { CMD_OR_COMPUTED_ASSIGN_OP ("&=", AND_EQ); }
de79cdbbdf7c improve parsing of commands John W. Eaton <jwe@octave.org> parents: 16643 diff changeset	1808 "\|=" { CMD_OR_COMPUTED_ASSIGN_OP ("\|=", OR_EQ); }
16257 db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	1809
16275 dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1810 %{
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1811 // In Matlab, '{' may also trigger command syntax.
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1812 %}
dd7de0345124 10/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16273 diff changeset	1813
16257 db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	1814 "{" {
db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	1815 curr_lexer->lexer_debug ("{");
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1816
16263 9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1817 bool unput_comma = false;
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1818
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1819 if (curr_lexer->whitespace_is_significant ()
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1820 && curr_lexer->space_follows_previous_token ())
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1821 {
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1822 int tok = curr_lexer->previous_token_value ();
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1823
16267 15f55df088e7 6/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16265 diff changeset	1824 if (! (tok == '[' \|\| tok == '{'
16263 9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1825 \|\| curr_lexer->previous_token_is_binop ()))
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1826 unput_comma = true;
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1827 }
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1828
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1829 if (unput_comma)
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1830 {
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1831 yyless (0);
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1832 curr_lexer->xunput (',');
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1833 }
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1834 else
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1835 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1836 curr_lexer->m_nesting_level.brace ();
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1837
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1838 curr_lexer->m_looking_at_object_index.push_front
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1839 (curr_lexer->m_looking_for_object_index);
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1840
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	1841 curr_lexer->m_filepos.increment_column (yyleng);
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1842 curr_lexer->m_looking_for_object_index = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1843 curr_lexer->m_at_beginning_of_statement = false;
16263 9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1844
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1845 curr_lexer->m_braceflag++;
16263 9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1846
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1847 curr_lexer->push_start_state (MATRIX_START);
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1848
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1849 return curr_lexer->count_token ('{');
9acb86e6ac90 4/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16261 diff changeset	1850 }
3351 8623649c967c [project @ 1999-11-15 16:17:01 by jwe] jwe parents: 3332 diff changeset	1851 }
8623649c967c [project @ 1999-11-15 16:17:01 by jwe] jwe parents: 3332 diff changeset	1852
8623649c967c [project @ 1999-11-15 16:17:01 by jwe] jwe parents: 3332 diff changeset	1853 "}" {
16229 7b7b1e4968e8 use functions instead of token return macros in lexer John W. Eaton <jwe@octave.org> parents: 16228 diff changeset	1854 curr_lexer->lexer_debug ("}");
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1855
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1856 curr_lexer->update_token_positions (yyleng);
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1857
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1858 curr_lexer->m_looking_at_object_index.pop_front ();
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1859
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1860 curr_lexer->m_looking_for_object_index = true;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1861 curr_lexer->m_at_beginning_of_statement = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1862
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	1863 curr_lexer->m_nesting_level.remove ();
3351 8623649c967c [project @ 1999-11-15 16:17:01 by jwe] jwe parents: 3332 diff changeset	1864
16229 7b7b1e4968e8 use functions instead of token return macros in lexer John W. Eaton <jwe@octave.org> parents: 16228 diff changeset	1865 return curr_lexer->handle_token ('}');
3351 8623649c967c [project @ 1999-11-15 16:17:01 by jwe] jwe parents: 3332 diff changeset	1866 }
8623649c967c [project @ 1999-11-15 16:17:01 by jwe] jwe parents: 3332 diff changeset	1867
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1868 %{
2066 a75d2a5d6783 [project @ 1996-04-11 21:20:43 by jwe] jwe parents: 2042 diff changeset	1869 // Unrecognized input is a lexical error.
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	1870 %}
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1871
2042 31f4f775b8c6 [project @ 1996-03-28 09:06:28 by jwe] jwe parents: 1994 diff changeset	1872 . {
16229 7b7b1e4968e8 use functions instead of token return macros in lexer John W. Eaton <jwe@octave.org> parents: 16228 diff changeset	1873 curr_lexer->lexer_debug (".");
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1874
16125 96a58f197f93 allow xunput to be called without buffer argument John W. Eaton <jwe@octave.org> parents: 16124 diff changeset	1875 curr_lexer->xunput (yytext[0]);
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1876
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1877 int c = curr_lexer->text_yyinput ();
4248 eef64f3f9a4c [project @ 2002-12-31 00:00:20 by jwe] jwe parents: 4241 diff changeset	1878
16294 0925d1f6875e push parser/lexer interface John W. Eaton <jwe@octave.org> parents: 16293 diff changeset	1879 if (c == 1)
0925d1f6875e push parser/lexer interface John W. Eaton <jwe@octave.org> parents: 16293 diff changeset	1880 return -1;
0925d1f6875e push parser/lexer interface John W. Eaton <jwe@octave.org> parents: 16293 diff changeset	1881 else if (c == EOF)
0925d1f6875e push parser/lexer interface John W. Eaton <jwe@octave.org> parents: 16293 diff changeset	1882 return curr_lexer->handle_end_of_input ();
0925d1f6875e push parser/lexer interface John W. Eaton <jwe@octave.org> parents: 16293 diff changeset	1883 else
4240 8627d992beb8 [project @ 2002-12-25 23:07:03 by jwe] jwe parents: 4238 diff changeset	1884 {
21064 a9f2c2d72892 handle lexical errors as parser errors (bug #46877) John W. Eaton <jwe@octave.org> parents: 21055 diff changeset	1885 std::ostringstream buf;
a9f2c2d72892 handle lexical errors as parser errors (bug #46877) John W. Eaton <jwe@octave.org> parents: 21055 diff changeset	1886
a9f2c2d72892 handle lexical errors as parser errors (bug #46877) John W. Eaton <jwe@octave.org> parents: 21055 diff changeset	1887 buf << "invalid character '"
25646 4d565baa475e move libinterp/utils functions inside octave namespace John W. Eaton <jwe@octave.org> parents: 25443 diff changeset	1888 << octave::undo_string_escape (static_cast<char> (c))
21064 a9f2c2d72892 handle lexical errors as parser errors (bug #46877) John W. Eaton <jwe@octave.org> parents: 21055 diff changeset	1889 << "' (ASCII " << c << ")";
a9f2c2d72892 handle lexical errors as parser errors (bug #46877) John W. Eaton <jwe@octave.org> parents: 21055 diff changeset	1890
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	1891 // Use current file position for error token.
23075 4e3d47dc7e25 move parse tree classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23061 diff changeset	1892 octave::token *tok
4e3d47dc7e25 move parse tree classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23061 diff changeset	1893 = new octave::token (LEXICAL_ERROR, buf.str (),
27769 07ffed9878ad store begin and end position in tokens John W. Eaton <jwe@octave.org> parents: 27768 diff changeset	1894 curr_lexer->m_filepos, curr_lexer->m_filepos);
21064 a9f2c2d72892 handle lexical errors as parser errors (bug #46877) John W. Eaton <jwe@octave.org> parents: 21055 diff changeset	1895
a9f2c2d72892 handle lexical errors as parser errors (bug #46877) John W. Eaton <jwe@octave.org> parents: 21055 diff changeset	1896 curr_lexer->push_token (tok);
a9f2c2d72892 handle lexical errors as parser errors (bug #46877) John W. Eaton <jwe@octave.org> parents: 21055 diff changeset	1897
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	1898 curr_lexer->m_filepos.increment_column ();
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1899
21064 a9f2c2d72892 handle lexical errors as parser errors (bug #46877) John W. Eaton <jwe@octave.org> parents: 21055 diff changeset	1900 return curr_lexer->count_token_internal (LEXICAL_ERROR);
4240 8627d992beb8 [project @ 2002-12-25 23:07:03 by jwe] jwe parents: 4238 diff changeset	1901 }
2066 a75d2a5d6783 [project @ 1996-04-11 21:20:43 by jwe] jwe parents: 2042 diff changeset	1902 }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1903
21023 ec532a439c6f rework method of disabling warnings from GCC John W. Eaton <jwe@octave.org> parents: 20957 diff changeset	1904 %{
ec532a439c6f rework method of disabling warnings from GCC John W. Eaton <jwe@octave.org> parents: 20957 diff changeset	1905 #if defined (HAVE_PRAGMA_GCC_DIAGNOSTIC)
24444 53ca76c5cc8d maint: Indent pragmas as other preprocessor directives. John W. Eaton <jwe@octave.org> parents: 24387 diff changeset	1906 // Disable these warnings for flex code.
53ca76c5cc8d maint: Indent pragmas as other preprocessor directives. John W. Eaton <jwe@octave.org> parents: 24387 diff changeset	1907 # pragma GCC diagnostic ignored "-Wold-style-cast"
53ca76c5cc8d maint: Indent pragmas as other preprocessor directives. John W. Eaton <jwe@octave.org> parents: 24387 diff changeset	1908 # pragma GCC diagnostic ignored "-Wunused-parameter"
21023 ec532a439c6f rework method of disabling warnings from GCC John W. Eaton <jwe@octave.org> parents: 20957 diff changeset	1909 #endif
ec532a439c6f rework method of disabling warnings from GCC John W. Eaton <jwe@octave.org> parents: 20957 diff changeset	1910 %}
ec532a439c6f rework method of disabling warnings from GCC John W. Eaton <jwe@octave.org> parents: 20957 diff changeset	1911
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1912 %%
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1913
21023 ec532a439c6f rework method of disabling warnings from GCC John W. Eaton <jwe@octave.org> parents: 20957 diff changeset	1914 #if defined (HAVE_PRAGMA_GCC_DIAGNOSTIC)
24444 53ca76c5cc8d maint: Indent pragmas as other preprocessor directives. John W. Eaton <jwe@octave.org> parents: 24387 diff changeset	1915 // Restore prevailing warning state for remainder of the file.
53ca76c5cc8d maint: Indent pragmas as other preprocessor directives. John W. Eaton <jwe@octave.org> parents: 24387 diff changeset	1916 # pragma GCC diagnostic pop
21023 ec532a439c6f rework method of disabling warnings from GCC John W. Eaton <jwe@octave.org> parents: 20957 diff changeset	1917 #endif
ec532a439c6f rework method of disabling warnings from GCC John W. Eaton <jwe@octave.org> parents: 20957 diff changeset	1918
19784 a3577622952c avoid some GCC unused parameter warnings John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1919 void *
a3577622952c avoid some GCC unused parameter warnings John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1920 octave_alloc (yy_size_t size, yyscan_t)
a3577622952c avoid some GCC unused parameter warnings John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1921 {
21942 aab79a1885cc limit gnulib headers to liboctave/wrappers directory John W. Eaton <jwe@octave.org> parents: 21912 diff changeset	1922 return std::malloc (size);
19784 a3577622952c avoid some GCC unused parameter warnings John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1923 }
a3577622952c avoid some GCC unused parameter warnings John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1924
a3577622952c avoid some GCC unused parameter warnings John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1925 void *
a3577622952c avoid some GCC unused parameter warnings John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1926 octave_realloc (void *ptr, yy_size_t size, yyscan_t)
a3577622952c avoid some GCC unused parameter warnings John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1927 {
21942 aab79a1885cc limit gnulib headers to liboctave/wrappers directory John W. Eaton <jwe@octave.org> parents: 21912 diff changeset	1928 return std::realloc (ptr, size);
19784 a3577622952c avoid some GCC unused parameter warnings John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1929 }
a3577622952c avoid some GCC unused parameter warnings John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1930
a3577622952c avoid some GCC unused parameter warnings John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1931 void
a3577622952c avoid some GCC unused parameter warnings John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1932 octave_free (void *ptr, yyscan_t)
a3577622952c avoid some GCC unused parameter warnings John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1933 {
21942 aab79a1885cc limit gnulib headers to liboctave/wrappers directory John W. Eaton <jwe@octave.org> parents: 21912 diff changeset	1934 std::free (ptr);
19784 a3577622952c avoid some GCC unused parameter warnings John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1935 }
a3577622952c avoid some GCC unused parameter warnings John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1936
8447 adab48231a03 make input_line_number work again John W. Eaton <jwe@octave.org> parents: 8312 diff changeset	1937 static void
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1938 display_character (char c)
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1939 {
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1940 if (isgraph (c))
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1941 std::cerr << c;
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1942 else
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1943 switch (c)
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1944 {
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1945 case 0:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1946 std::cerr << "NUL";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1947 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1948
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1949 case 1:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1950 std::cerr << "SOH";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1951 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1952
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1953 case 2:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1954 std::cerr << "STX";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1955 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1956
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1957 case 3:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1958 std::cerr << "ETX";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1959 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1960
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1961 case 4:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1962 std::cerr << "EOT";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1963 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1964
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1965 case 5:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1966 std::cerr << "ENQ";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1967 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1968
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1969 case 6:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1970 std::cerr << "ACK";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1971 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1972
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1973 case 7:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1974 std::cerr << "\\a";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1975 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1976
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1977 case 8:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1978 std::cerr << "\\b";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1979 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1980
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1981 case 9:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1982 std::cerr << "\\t";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1983 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1984
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1985 case 10:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1986 std::cerr << "\\n";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1987 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1988
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1989 case 11:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1990 std::cerr << "\\v";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1991 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1992
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1993 case 12:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1994 std::cerr << "\\f";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1995 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1996
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1997 case 13:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1998 std::cerr << "\\r";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1999 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2000
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2001 case 14:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2002 std::cerr << "SO";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2003 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2004
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2005 case 15:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2006 std::cerr << "SI";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2007 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2008
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2009 case 16:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2010 std::cerr << "DLE";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2011 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2012
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2013 case 17:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2014 std::cerr << "DC1";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2015 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2016
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2017 case 18:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2018 std::cerr << "DC2";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2019 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2020
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2021 case 19:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2022 std::cerr << "DC3";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2023 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2024
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2025 case 20:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2026 std::cerr << "DC4";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2027 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2028
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2029 case 21:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2030 std::cerr << "NAK";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2031 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2032
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2033 case 22:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2034 std::cerr << "SYN";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2035 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2036
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2037 case 23:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2038 std::cerr << "ETB";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2039 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2040
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2041 case 24:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2042 std::cerr << "CAN";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2043 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2044
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2045 case 25:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2046 std::cerr << "EM";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2047 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2048
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2049 case 26:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2050 std::cerr << "SUB";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2051 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2052
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2053 case 27:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2054 std::cerr << "ESC";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2055 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2056
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2057 case 28:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2058 std::cerr << "FS";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2059 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2060
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2061 case 29:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2062 std::cerr << "GS";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2063 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2064
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2065 case 30:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2066 std::cerr << "RS";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2067 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2068
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2069 case 31:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2070 std::cerr << "US";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2071 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2072
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2073 case 32:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2074 std::cerr << "SPACE";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2075 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2076
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2077 case 127:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2078 std::cerr << "DEL";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2079 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2080 }
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2081 }
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	2082
16114 73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2083 DEFUN (iskeyword, args, ,
21966 112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21942 diff changeset	2084 doc: /* -- texinfo --
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21942 diff changeset	2085 @deftypefn {} {} iskeyword ()
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21942 diff changeset	2086 @deftypefnx {} {} iskeyword (@var{name})
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21942 diff changeset	2087 Return true if @var{name} is an Octave keyword.
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21942 diff changeset	2088
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21942 diff changeset	2089 If @var{name} is omitted, return a list of keywords.
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21942 diff changeset	2090 @seealso{isvarname, exist}
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21942 diff changeset	2091 @end deftypefn */)
16114 73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2092 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2093 octave_value retval;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2094
20812 d9ca869ca124 maint: Clean-up more instances of print_usage(). Rik <rik@octave.org> parents: 20798 diff changeset	2095 int nargin = args.length ();
d9ca869ca124 maint: Clean-up more instances of print_usage(). Rik <rik@octave.org> parents: 20798 diff changeset	2096
d9ca869ca124 maint: Clean-up more instances of print_usage(). Rik <rik@octave.org> parents: 20798 diff changeset	2097 if (nargin > 1)
20798 bb585db6dee2 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20773 diff changeset	2098 print_usage ();
bb585db6dee2 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20773 diff changeset	2099
20812 d9ca869ca124 maint: Clean-up more instances of print_usage(). Rik <rik@octave.org> parents: 20798 diff changeset	2100 if (nargin == 0)
16114 73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2101 {
20812 d9ca869ca124 maint: Clean-up more instances of print_usage(). Rik <rik@octave.org> parents: 20798 diff changeset	2102 // Neither set nor get are keywords. See the note in the
26059 da2bbcf1fbcd Deprecate C++ function is_keyword in favor of iskeyword for readability. Rik <rik@octave.org> parents: 25994 diff changeset	2103 // iskeyword function for additional details.
16114 73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2104
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2105 string_vector lst (TOTAL_KEYWORDS);
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2106
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2107 int j = 0;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2108
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2109 for (int i = 0; i < TOTAL_KEYWORDS; i++)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2110 {
20812 d9ca869ca124 maint: Clean-up more instances of print_usage(). Rik <rik@octave.org> parents: 20798 diff changeset	2111 std::string kword = wordlist[i].name;
d9ca869ca124 maint: Clean-up more instances of print_usage(). Rik <rik@octave.org> parents: 20798 diff changeset	2112
28156 22cddebcb0d0 allow @get and @set to work properly again (bug #57988) John W. Eaton <jwe@octave.org> parents: 28149 diff changeset	2113 if (! (kword == "set" \|\| kword == "get"
22cddebcb0d0 allow @get and @set to work properly again (bug #57988) John W. Eaton <jwe@octave.org> parents: 28149 diff changeset	2114 \|\| kword == "enumeration" \|\| kword == "events"
22cddebcb0d0 allow @get and @set to work properly again (bug #57988) John W. Eaton <jwe@octave.org> parents: 28149 diff changeset	2115 \|\| kword == "methods" \|\| kword == "properties"))
20812 d9ca869ca124 maint: Clean-up more instances of print_usage(). Rik <rik@octave.org> parents: 20798 diff changeset	2116 lst[j++] = kword;
16114 73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2117 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2118
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2119 lst.resize (j);
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2120
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2121 retval = Cell (lst.sort ());
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2122 }
20812 d9ca869ca124 maint: Clean-up more instances of print_usage(). Rik <rik@octave.org> parents: 20798 diff changeset	2123 else
16114 73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2124 {
20812 d9ca869ca124 maint: Clean-up more instances of print_usage(). Rik <rik@octave.org> parents: 20798 diff changeset	2125 std::string name = args(0).xstring_value ("iskeyword: NAME must be a string");
26059 da2bbcf1fbcd Deprecate C++ function is_keyword in favor of iskeyword for readability. Rik <rik@octave.org> parents: 25994 diff changeset	2126 retval = octave::iskeyword (name);
16114 73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2127 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2128
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2129 return retval;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2130 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2131
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2132 /*
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2133
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2134 %!assert (iskeyword ("for"))
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2135 %!assert (iskeyword ("fort"), false)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2136 %!assert (iskeyword ("fft"), false)
20812 d9ca869ca124 maint: Clean-up more instances of print_usage(). Rik <rik@octave.org> parents: 20798 diff changeset	2137 %!assert (iskeyword ("get"), false)
d9ca869ca124 maint: Clean-up more instances of print_usage(). Rik <rik@octave.org> parents: 20798 diff changeset	2138 %!assert (iskeyword ("set"), false)
d9ca869ca124 maint: Clean-up more instances of print_usage(). Rik <rik@octave.org> parents: 20798 diff changeset	2139
d9ca869ca124 maint: Clean-up more instances of print_usage(). Rik <rik@octave.org> parents: 20798 diff changeset	2140 %!error iskeyword ("A", "B")
d9ca869ca124 maint: Clean-up more instances of print_usage(). Rik <rik@octave.org> parents: 20798 diff changeset	2141 %!error <NAME must be a string> iskeyword (1)
16114 73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2142
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2143 */
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	2144
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2145 namespace octave
16255 12bf6a3f8c45 store more info in token value class John W. Eaton <jwe@octave.org> parents: 16253 diff changeset	2146 {
23599 5cb3a2bb5e1e don't use singleton for symbol_table John W. Eaton <jwe@octave.org> parents: 23555 diff changeset	2147 void
5cb3a2bb5e1e don't use singleton for symbol_table John W. Eaton <jwe@octave.org> parents: 23555 diff changeset	2148 lexical_feedback::symbol_table_context::clear (void)
5cb3a2bb5e1e don't use singleton for symbol_table John W. Eaton <jwe@octave.org> parents: 23555 diff changeset	2149 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2150 while (! m_frame_stack.empty ())
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2151 m_frame_stack.pop_front ();
23599 5cb3a2bb5e1e don't use singleton for symbol_table John W. Eaton <jwe@octave.org> parents: 23555 diff changeset	2152 }
5cb3a2bb5e1e don't use singleton for symbol_table John W. Eaton <jwe@octave.org> parents: 23555 diff changeset	2153
5cb3a2bb5e1e don't use singleton for symbol_table John W. Eaton <jwe@octave.org> parents: 23555 diff changeset	2154 void
23602 214cb58ccc1c use pointer to scope instead of scope id John W. Eaton <jwe@octave.org> parents: 23599 diff changeset	2155 lexical_feedback::symbol_table_context::pop (void)
23599 5cb3a2bb5e1e don't use singleton for symbol_table John W. Eaton <jwe@octave.org> parents: 23555 diff changeset	2156 {
23602 214cb58ccc1c use pointer to scope instead of scope id John W. Eaton <jwe@octave.org> parents: 23599 diff changeset	2157 if (empty ())
214cb58ccc1c use pointer to scope instead of scope id John W. Eaton <jwe@octave.org> parents: 23599 diff changeset	2158 panic_impossible ();
214cb58ccc1c use pointer to scope instead of scope id John W. Eaton <jwe@octave.org> parents: 23599 diff changeset	2159
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2160 m_frame_stack.pop_front ();
23599 5cb3a2bb5e1e don't use singleton for symbol_table John W. Eaton <jwe@octave.org> parents: 23555 diff changeset	2161 }
5cb3a2bb5e1e don't use singleton for symbol_table John W. Eaton <jwe@octave.org> parents: 23555 diff changeset	2162
24361 8bcfddad15ec use shared_ptr to manage symbol_scope objects John W. Eaton <jwe@octave.org> parents: 24356 diff changeset	2163 symbol_scope
23599 5cb3a2bb5e1e don't use singleton for symbol_table John W. Eaton <jwe@octave.org> parents: 23555 diff changeset	2164 lexical_feedback::symbol_table_context::curr_scope (void) const
5cb3a2bb5e1e don't use singleton for symbol_table John W. Eaton <jwe@octave.org> parents: 23555 diff changeset	2165 {
5cb3a2bb5e1e don't use singleton for symbol_table John W. Eaton <jwe@octave.org> parents: 23555 diff changeset	2166 if (empty ())
27443 075602880383 store ref to interpreter in lexical_feedback and symbol_table_context classes John W. Eaton <jwe@octave.org> parents: 27301 diff changeset	2167 return m_interpreter.get_current_scope ();
23599 5cb3a2bb5e1e don't use singleton for symbol_table John W. Eaton <jwe@octave.org> parents: 23555 diff changeset	2168 else
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2169 return m_frame_stack.front ();
23599 5cb3a2bb5e1e don't use singleton for symbol_table John W. Eaton <jwe@octave.org> parents: 23555 diff changeset	2170 }
5cb3a2bb5e1e don't use singleton for symbol_table John W. Eaton <jwe@octave.org> parents: 23555 diff changeset	2171
24361 8bcfddad15ec use shared_ptr to manage symbol_scope objects John W. Eaton <jwe@octave.org> parents: 24356 diff changeset	2172 symbol_scope
23599 5cb3a2bb5e1e don't use singleton for symbol_table John W. Eaton <jwe@octave.org> parents: 23555 diff changeset	2173 lexical_feedback::symbol_table_context::parent_scope (void) const
5cb3a2bb5e1e don't use singleton for symbol_table John W. Eaton <jwe@octave.org> parents: 23555 diff changeset	2174 {
5cb3a2bb5e1e don't use singleton for symbol_table John W. Eaton <jwe@octave.org> parents: 23555 diff changeset	2175 size_t sz = size ();
5cb3a2bb5e1e don't use singleton for symbol_table John W. Eaton <jwe@octave.org> parents: 23555 diff changeset	2176
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2177 return (sz > 1
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2178 ? m_frame_stack[1]
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2179 : (sz == 1 ? m_frame_stack[0] : symbol_scope ()));
23599 5cb3a2bb5e1e don't use singleton for symbol_table John W. Eaton <jwe@octave.org> parents: 23555 diff changeset	2180 }
5cb3a2bb5e1e don't use singleton for symbol_table John W. Eaton <jwe@octave.org> parents: 23555 diff changeset	2181
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2182 lexical_feedback::~lexical_feedback (void)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2183 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2184 m_tokens.clear ();
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2185 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2186
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2187 void
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2188 lexical_feedback::init (void)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2189 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2190 // The closest paren, brace, or bracket nesting is not an object
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2191 // index.
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2192 m_looking_at_object_index.push_front (false);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2193 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2194
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2195 void
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2196 lexical_feedback::reset (void)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2197 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2198 m_end_of_input = false;
26662 05fc703b419a update handling of command-style function call syntax in eval John W. Eaton <jwe@octave.org> parents: 26661 diff changeset	2199 m_allow_command_syntax = true;
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2200 m_at_beginning_of_statement = true;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2201 m_looking_at_anon_fcn_args = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2202 m_looking_at_return_list = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2203 m_looking_at_parameter_list = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2204 m_looking_at_decl_list = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2205 m_looking_at_initializer_expression = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2206 m_looking_at_matrix_or_assign_lhs = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2207 m_looking_for_object_index = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2208 m_looking_at_indirect_ref = false;
27736 bd80e14f268a improve parse error message for @()x+=expr (bug #57255) John W. Eaton <jwe@octave.org> parents: 27578 diff changeset	2209 m_parsing_anon_fcn_body = false;
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2210 m_parsing_class_method = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2211 m_parsing_classdef = false;
26709 17e7d310def8 revamp parsing of superclass identifiers in classdef decls John W. Eaton <jwe@octave.org> parents: 26708 diff changeset	2212 m_parsing_classdef_decl = false;
17e7d310def8 revamp parsing of superclass identifiers in classdef decls John W. Eaton <jwe@octave.org> parents: 26708 diff changeset	2213 m_parsing_classdef_superclass = false;
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2214 m_maybe_classdef_get_set_method = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2215 m_parsing_classdef_get_method = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2216 m_parsing_classdef_set_method = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2217 m_quote_is_transpose = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2218 m_force_script = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2219 m_reading_fcn_file = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2220 m_reading_script_file = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2221 m_reading_classdef_file = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2222 m_buffer_function_text = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2223 m_bracketflag = 0;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2224 m_braceflag = 0;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2225 m_looping = 0;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2226 m_defining_func = 0;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2227 m_looking_at_function_handle = 0;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2228 m_block_comment_nesting_level = 0;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2229 m_command_arg_paren_count = 0;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2230 m_token_count = 0;
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	2231 m_filepos = filepos ();
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2232 m_tok_beg = filepos ();
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2233 m_tok_end = filepos ();
27768 d6701f835496 use filepos object to store beginning position of character strings John W. Eaton <jwe@octave.org> parents: 27766 diff changeset	2234 m_string_text = "";
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2235 m_current_input_line = "";
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2236 m_comment_text = "";
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2237 m_help_text = "";
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2238 m_function_text = "";
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2239 m_fcn_file_name = "";
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2240 m_fcn_file_full_name = "";
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2241 m_dir_name = "";
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2242 m_package_name = "";
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2243 m_looking_at_object_index.clear ();
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2244 m_looking_at_object_index.push_front (false);
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2245
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2246 while (! m_parsed_function_name.empty ())
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2247 m_parsed_function_name.pop ();
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2248
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2249 m_pending_local_variables.clear ();
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2250 m_symtab_context.clear ();
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2251 m_nesting_level.reset ();
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2252 m_tokens.clear ();
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2253 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2254
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2255 int
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2256 lexical_feedback::previous_token_value (void) const
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2257 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2258 const token *tok = m_tokens.front ();
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2259 return tok ? tok->token_value () : 0;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2260 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2261
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2262 bool
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2263 lexical_feedback::previous_token_value_is (int tok_val) const
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2264 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2265 const token *tok = m_tokens.front ();
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2266 return tok ? tok->token_value_is (tok_val) : false;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2267 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2268
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2269 void
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2270 lexical_feedback::mark_previous_token_trailing_space (void)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2271 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2272 token *tok = m_tokens.front ();
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2273 if (tok && ! previous_token_value_is ('\n'))
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2274 tok->mark_trailing_space ();
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2275 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2276
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2277 bool
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2278 lexical_feedback::space_follows_previous_token (void) const
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2279 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2280 const token *tok = m_tokens.front ();
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2281 return tok ? tok->space_follows_token () : false;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2282 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2283
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2284 bool
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2285 lexical_feedback::previous_token_is_binop (void) const
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2286 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2287 int tok = previous_token_value ();
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2288
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2289 return (tok == '+' \|\| tok == '-' \|\| tok == '@'
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2290 \|\| tok == ',' \|\| tok == ';' \|\| tok == '*' \|\| tok == '/'
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2291 \|\| tok == ':' \|\| tok == '=' \|\| tok == ADD_EQ
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2292 \|\| tok == AND_EQ \|\| tok == DIV_EQ \|\| tok == EDIV
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2293 \|\| tok == EDIV_EQ \|\| tok == ELEFTDIV \|\| tok == ELEFTDIV_EQ
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2294 \|\| tok == EMINUS \|\| tok == EMUL \|\| tok == EMUL_EQ
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2295 \|\| tok == EPOW \|\| tok == EPOW_EQ \|\| tok == EXPR_AND
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2296 \|\| tok == EXPR_AND_AND \|\| tok == EXPR_EQ \|\| tok == EXPR_GE
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2297 \|\| tok == EXPR_GT \|\| tok == EXPR_LE \|\| tok == EXPR_LT
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2298 \|\| tok == EXPR_NE \|\| tok == EXPR_NOT \|\| tok == EXPR_OR
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2299 \|\| tok == EXPR_OR_OR \|\| tok == LEFTDIV \|\| tok == LEFTDIV_EQ
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2300 \|\| tok == MUL_EQ \|\| tok == OR_EQ \|\| tok == POW
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2301 \|\| tok == POW_EQ \|\| tok == SUB_EQ);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2302 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2303
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2304 bool
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2305 lexical_feedback::previous_token_is_keyword (void) const
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2306 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2307 const token *tok = m_tokens.front ();
26059 da2bbcf1fbcd Deprecate C++ function is_keyword in favor of iskeyword for readability. Rik <rik@octave.org> parents: 25994 diff changeset	2308 return tok ? tok->iskeyword () : false;
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2309 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2310
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2311 bool
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2312 lexical_feedback::previous_token_may_be_command (void) const
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2313 {
26662 05fc703b419a update handling of command-style function call syntax in eval John W. Eaton <jwe@octave.org> parents: 26661 diff changeset	2314 if (! m_allow_command_syntax)
05fc703b419a update handling of command-style function call syntax in eval John W. Eaton <jwe@octave.org> parents: 26661 diff changeset	2315 return false;
05fc703b419a update handling of command-style function call syntax in eval John W. Eaton <jwe@octave.org> parents: 26661 diff changeset	2316
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2317 const token *tok = m_tokens.front ();
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2318 return tok ? tok->may_be_command () : false;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2319 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2320
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2321 void
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2322 lexical_feedback::maybe_mark_previous_token_as_variable (void)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2323 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2324 token *tok = m_tokens.front ();
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2325
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2326 if (tok && tok->is_symbol ())
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2327 m_pending_local_variables.insert (tok->symbol_name ());
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2328 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2329
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2330 void
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2331 lexical_feedback::mark_as_variables (const std::list<std::string>& lst)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2332 {
22872 551ac93c984c maint: Use C++ range feature to simplify some for loops in libinterp/parse-tree Rik <rik@octave.org> parents: 22857 diff changeset	2333 for (const auto& var : lst)
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2334 m_pending_local_variables.insert (var);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2335 }
16360 11115c237231 recognize variables when parsing (bug #38576) John W. Eaton <jwe@octave.org> parents: 16337 diff changeset	2336 }
11115c237231 recognize variables when parsing (bug #38576) John W. Eaton <jwe@octave.org> parents: 16337 diff changeset	2337
16228 e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	2338 static bool
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	2339 looks_like_copyright (const std::string& s)
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	2340 {
27925 cf45351fc7fa avoid parse exception when initial comment block is all whitespace John W. Eaton <jwe@octave.org> parents: 27923 diff changeset	2341 if (s.empty ())
cf45351fc7fa avoid parse exception when initial comment block is all whitespace John W. Eaton <jwe@octave.org> parents: 27923 diff changeset	2342 return false;
cf45351fc7fa avoid parse exception when initial comment block is all whitespace John W. Eaton <jwe@octave.org> parents: 27923 diff changeset	2343
cf45351fc7fa avoid parse exception when initial comment block is all whitespace John W. Eaton <jwe@octave.org> parents: 27923 diff changeset	2344 // Comment characters have been stripped but whitespace
cf45351fc7fa avoid parse exception when initial comment block is all whitespace John W. Eaton <jwe@octave.org> parents: 27923 diff changeset	2345 // (including newlines) remains.
cf45351fc7fa avoid parse exception when initial comment block is all whitespace John W. Eaton <jwe@octave.org> parents: 27923 diff changeset	2346
cf45351fc7fa avoid parse exception when initial comment block is all whitespace John W. Eaton <jwe@octave.org> parents: 27923 diff changeset	2347 size_t offset = s.find_first_not_of (" \t\n\r");
cf45351fc7fa avoid parse exception when initial comment block is all whitespace John W. Eaton <jwe@octave.org> parents: 27923 diff changeset	2348
cf45351fc7fa avoid parse exception when initial comment block is all whitespace John W. Eaton <jwe@octave.org> parents: 27923 diff changeset	2349 return (offset != std::string::npos
cf45351fc7fa avoid parse exception when initial comment block is all whitespace John W. Eaton <jwe@octave.org> parents: 27923 diff changeset	2350 && (s.substr (offset, 9) == "Copyright"
cf45351fc7fa avoid parse exception when initial comment block is all whitespace John W. Eaton <jwe@octave.org> parents: 27923 diff changeset	2351 \|\| s.substr (offset, 6) == "Author"
cf45351fc7fa avoid parse exception when initial comment block is all whitespace John W. Eaton <jwe@octave.org> parents: 27923 diff changeset	2352 \|\| s.substr (offset, 23) == "SPDX-License-Identifier"));
16228 e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	2353 }
e19b1632d7c1 revamp most comment handling John W. Eaton <jwe@octave.org> parents: 16224 diff changeset	2354
23555 9151922777e2 Pick correct help text when shebang is present (bug #51191). Rik <rik@octave.org> parents: 23479 diff changeset	2355 static bool
9151922777e2 Pick correct help text when shebang is present (bug #51191). Rik <rik@octave.org> parents: 23479 diff changeset	2356 looks_like_shebang (const std::string& s)
9151922777e2 Pick correct help text when shebang is present (bug #51191). Rik <rik@octave.org> parents: 23479 diff changeset	2357 {
9151922777e2 Pick correct help text when shebang is present (bug #51191). Rik <rik@octave.org> parents: 23479 diff changeset	2358 return ((! s.empty ()) && (s[0] == '!'));
9151922777e2 Pick correct help text when shebang is present (bug #51191). Rik <rik@octave.org> parents: 23479 diff changeset	2359 }
9151922777e2 Pick correct help text when shebang is present (bug #51191). Rik <rik@octave.org> parents: 23479 diff changeset	2360
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2361 namespace octave
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2362 {
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2363 void
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2364 base_lexer::input_buffer::fill (const std::string& input, bool eof_arg)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2365 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2366 m_buffer = input;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2367 m_chars_left = m_buffer.length ();
28407 808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2368 m_offset = 0;
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2369 m_eof = eof_arg;
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2370 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2371
28407 808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2372 // If BY_LINES is true, return chunks to the lexer line by line.
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2373 int
28407 808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2374 base_lexer::input_buffer::copy_chunk (char *buf, size_t max_size,
808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2375 bool by_lines)
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2376 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2377 static const char * const eol = "\n";
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2378
28407 808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2379 size_t len = 0;
808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2380 if (by_lines)
808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2381 {
808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2382 size_t newline_pos = m_buffer.find ('\n', m_offset);
808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2383 len = (newline_pos != std::string::npos
808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2384 ? newline_pos - m_offset + 1
808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2385 : (max_size > m_chars_left ? m_chars_left : max_size));
808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2386 }
808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2387 else
808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2388 len = max_size > m_chars_left ? m_chars_left : max_size;
808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2389
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2390 assert (len > 0);
28407 808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2391 memcpy (buf, m_buffer.c_str () + m_offset, len);
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2392
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2393 m_chars_left -= len;
28407 808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2394 m_offset += len;
808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2395
808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2396 // Make sure the final input returned to the lexer ends with a new
808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2397 // line character.
808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2398
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2399 if (m_chars_left == 0 && buf[len-1] != '\n')
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2400 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2401 if (len < max_size)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2402 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2403 // There is enough room to plug the newline character in
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2404 // the buffer.
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2405 buf[len++] = '\n';
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2406 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2407 else
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2408 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2409 // There isn't enough room to plug the newline character
28407 808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2410 // in BUF so arrange to have it returned on the next call
808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2411 // to base_lexer::read.
808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2412
808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2413 // At this point we've exhausted the original input
808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2414 // (m_chars_left is zero) so we can overwrite the initial
808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2415 // buffer with a single newline character to be returned on
808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2416 // the next call.
808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2417
808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2418 m_buffer = eol;
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2419 m_chars_left = 1;
28407 808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	2420 m_offset = 0;
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2421 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2422 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2423
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2424 return len;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2425 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2426
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2427 base_lexer::~base_lexer (void)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2428 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2429 yylex_destroy (m_scanner);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2430 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2431
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2432 void
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2433 base_lexer::init (void)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2434 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2435 yylex_init (&m_scanner);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2436
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2437 // Make base_lexer object available through yyextra in
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2438 // flex-generated lexer.
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2439 yyset_extra (this, m_scanner);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2440
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2441 clear_start_state ();
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2442 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2443
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2444 // Inside Flex-generated functions, yyg is the scanner cast to its real
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2445 // type. Some flex macros that we use in base_lexer member functions
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2446 // (for example, BEGIN) use yyg. If we could perform the actions of
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2447 // these macros with functions instead, we could eliminate the
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2448 // OCTAVE_YYG macro.
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2449
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2450 #define OCTAVE_YYG \
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2451 struct yyguts_t yyg = static_cast<struct yyguts_t> (m_scanner)
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2452
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2453 void
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2454 base_lexer::reset (void)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2455 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2456 // Start off on the right foot.
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2457 clear_start_state ();
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2458
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2459 m_symtab_context.clear ();
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2460
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2461 // Only ask for input from stdin if we are expecting interactive
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2462 // input.
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2463
27301 a2b1ba6c92d5 eliminate unnecessary application::interative function John W. Eaton <jwe@octave.org> parents: 27086 diff changeset	2464 if (m_interpreter.interactive ()
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2465 && ! (m_reading_fcn_file
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2466 \|\| m_reading_classdef_file
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2467 \|\| m_reading_script_file
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2468 \|\| input_from_eval_string ()))
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2469 yyrestart (stdin, m_scanner);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2470
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2471 lexical_feedback::reset ();
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2472
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2473 m_comment_buf.reset ();
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2474 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2475
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2476 void
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2477 base_lexer::prep_for_file (void)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2478 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2479 m_reading_script_file = true;
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2480
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2481 push_start_state (INPUT_FILE_START);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2482 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2483
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2484 void
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2485 base_lexer::begin_string (int state)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2486 {
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2487 m_tok_beg = m_filepos;
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2488
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2489 push_start_state (state);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2490 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2491
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2492 int
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2493 base_lexer::handle_end_of_input (void)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2494 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2495 lexer_debug ("<<EOF>>");
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2496
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2497 m_tok_beg = m_filepos;
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2498 m_tok_end = m_filepos;
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2499
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2500 if (m_block_comment_nesting_level != 0)
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2501 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2502 warning ("block comment open at end of input");
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2503
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2504 if ((m_reading_fcn_file \|\| m_reading_script_file \|\| m_reading_classdef_file)
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2505 && ! m_fcn_file_name.empty ())
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2506 warning ("near line %d of file '%s.m'",
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	2507 m_filepos.line (), m_fcn_file_name.c_str ());
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2508 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2509
28149 026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	2510 token *tok_val = new token (END_OF_INPUT, m_tok_beg, m_tok_end);
026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	2511
026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	2512 push_token (tok_val);
026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	2513
026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	2514 return count_token_internal (END_OF_INPUT);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2515 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2516
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2517 char *
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2518 base_lexer::flex_yytext (void)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2519 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2520 return yyget_text (m_scanner);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2521 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2522
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2523 int
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2524 base_lexer::flex_yyleng (void)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2525 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2526 return yyget_leng (m_scanner);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2527 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2528
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2529 int
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2530 base_lexer::text_yyinput (void)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2531 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2532 int c = yyinput (m_scanner);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2533
25443 2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	2534 if (debug_flag ())
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2535 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2536 std::cerr << "I: ";
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2537 display_character (c);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2538 std::cerr << std::endl;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2539 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2540
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2541 // Convert CRLF into just LF and single CR into LF.
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2542
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2543 if (c == '\r')
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2544 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2545 c = yyinput (m_scanner);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2546
25443 2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	2547 if (debug_flag ())
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2548 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2549 std::cerr << "I: ";
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2550 display_character (c);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2551 std::cerr << std::endl;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2552 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2553
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2554 if (c != '\n')
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2555 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2556 xunput (c);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2557 c = '\n';
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2558 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2559 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2560
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2561 return c;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2562 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2563
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2564 void
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2565 base_lexer::xunput (char c, char *buf)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2566 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2567 if (c != EOF)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2568 {
25443 2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	2569 if (debug_flag ())
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2570 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2571 std::cerr << "U: ";
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2572 display_character (c);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2573 std::cerr << std::endl;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2574 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2575
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2576 yyunput (c, buf, m_scanner);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2577 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2578 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2579
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2580 void
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2581 base_lexer::xunput (char c)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2582 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2583 char *yytxt = flex_yytext ();
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2584
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2585 xunput (c, yytxt);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2586 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2587
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2588 void
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2589 base_lexer::update_token_positions (int tok_len)
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2590 {
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2591 m_tok_beg = m_filepos;
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2592 m_tok_end = m_filepos;
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2593
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2594 if (tok_len > 1)
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2595 m_tok_end.increment_column (tok_len - 1);
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2596
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2597 m_filepos.increment_column (tok_len);
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2598 }
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2599
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2600 bool
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2601 base_lexer::looking_at_space (void)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2602 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2603 int c = text_yyinput ();
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2604 xunput (c);
26710 d6dd07dce2d2 use inline functions for matching whitespace in lexer John W. Eaton <jwe@octave.org> parents: 26709 diff changeset	2605 return is_space_or_tab (c);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2606 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2607
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2608 bool
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2609 base_lexer::inside_any_object_index (void)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2610 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2611 bool retval = false;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2612
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2613 for (const bool is_obj_idx : m_looking_at_object_index)
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2614 {
22872 551ac93c984c maint: Use C++ range feature to simplify some for loops in libinterp/parse-tree Rik <rik@octave.org> parents: 22857 diff changeset	2615 if (is_obj_idx)
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2616 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2617 retval = true;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2618 break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2619 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2620 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2621
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2622 return retval;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2623 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2624
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2625 bool
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2626 base_lexer::is_variable (const std::string& name,
26661 cf9e10ce3351 move variable values from symbol_record objects to stack_frame objects John W. Eaton <jwe@octave.org> parents: 26482 diff changeset	2627 const symbol_scope& /scope/)
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2628 {
26662 05fc703b419a update handling of command-style function call syntax in eval John W. Eaton <jwe@octave.org> parents: 26661 diff changeset	2629 return ((m_interpreter.at_top_level ()
05fc703b419a update handling of command-style function call syntax in eval John W. Eaton <jwe@octave.org> parents: 26661 diff changeset	2630 && m_interpreter.is_variable (name))
05fc703b419a update handling of command-style function call syntax in eval John W. Eaton <jwe@octave.org> parents: 26661 diff changeset	2631 \|\| (m_pending_local_variables.find (name)
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2632 != m_pending_local_variables.end ()));
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2633 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2634
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2635 int
27771 cd566153edd6 split base_lexer::is_keyword_token into two functions John W. Eaton <jwe@octave.org> parents: 27770 diff changeset	2636 base_lexer::make_keyword_token (const std::string& s)
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2637 {
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2638 int slen = s.length ();
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2639
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2640 const octave_kw *kw = octave_kw_hash::in_word_set (s.c_str (), slen);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2641
27770 7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2642 if (! kw)
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2643 return 0;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2644
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2645 bool previous_at_bos = m_at_beginning_of_statement;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2646
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2647 // May be reset to true for some token types.
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2648 m_at_beginning_of_statement = false;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2649
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2650 update_token_positions (slen);
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2651
27770 7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2652 token *tok_val = nullptr;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2653
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2654 switch (kw->kw_id)
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2655 {
27770 7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2656 case break_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2657 case catch_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2658 case continue_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2659 case else_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2660 case otherwise_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2661 case return_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2662 case unwind_protect_cleanup_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2663 m_at_beginning_of_statement = true;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2664 break;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2665
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2666 case persistent_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2667 case global_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2668 m_looking_at_decl_list = true;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2669 break;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2670
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2671 case case_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2672 case elseif_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2673 case until_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2674 break;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2675
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2676 case end_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2677 if (inside_any_object_index ()
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2678 \|\| (m_defining_func
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2679 && ! (m_looking_at_return_list
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2680 \|\| m_parsed_function_name.top ())))
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2681 {
27770 7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2682 m_at_beginning_of_statement = previous_at_bos;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2683 return 0;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2684 }
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2685
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2686 tok_val = new token (end_kw, token::simple_end, m_tok_beg, m_tok_end);
27770 7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2687 m_at_beginning_of_statement = true;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2688 break;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2689
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2690 case end_try_catch_kw:
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2691 tok_val = new token (end_try_catch_kw, token::try_catch_end, m_tok_beg,
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2692 m_tok_end);
27770 7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2693 m_at_beginning_of_statement = true;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2694 break;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2695
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2696 case end_unwind_protect_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2697 tok_val = new token (end_unwind_protect_kw,
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2698 token::unwind_protect_end, m_tok_beg, m_tok_end);
27770 7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2699 m_at_beginning_of_statement = true;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2700 break;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2701
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2702 case endfor_kw:
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2703 tok_val = new token (endfor_kw, token::for_end, m_tok_beg, m_tok_end);
27770 7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2704 m_at_beginning_of_statement = true;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2705 break;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2706
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2707 case endfunction_kw:
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2708 tok_val = new token (endfunction_kw, token::function_end, m_tok_beg,
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2709 m_tok_end);
27770 7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2710 m_at_beginning_of_statement = true;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2711 break;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2712
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2713 case endif_kw:
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2714 tok_val = new token (endif_kw, token::if_end, m_tok_beg, m_tok_end);
27770 7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2715 m_at_beginning_of_statement = true;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2716 break;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2717
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2718 case endparfor_kw:
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2719 tok_val = new token (endparfor_kw, token::parfor_end, m_tok_beg,
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2720 m_tok_end);
27770 7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2721 m_at_beginning_of_statement = true;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2722 break;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2723
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2724 case endswitch_kw:
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2725 tok_val = new token (endswitch_kw, token::switch_end, m_tok_beg,
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2726 m_tok_end);
27770 7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2727 m_at_beginning_of_statement = true;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2728 break;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2729
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2730 case endwhile_kw:
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2731 tok_val = new token (endwhile_kw, token::while_end, m_tok_beg,
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2732 m_tok_end);
27770 7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2733 m_at_beginning_of_statement = true;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2734 break;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2735
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2736 case endclassdef_kw:
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2737 tok_val = new token (endclassdef_kw, token::classdef_end, m_tok_beg,
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2738 m_tok_end);
27770 7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2739 m_at_beginning_of_statement = true;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2740 break;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2741
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2742 case endenumeration_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2743 tok_val = new token (endenumeration_kw, token::enumeration_end,
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2744 m_tok_beg, m_tok_end);
27770 7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2745 m_at_beginning_of_statement = true;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2746 break;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2747
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2748 case endevents_kw:
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2749 tok_val = new token (endevents_kw, token::events_end, m_tok_beg,
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2750 m_tok_end);
27770 7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2751 m_at_beginning_of_statement = true;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2752 break;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2753
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2754 case endmethods_kw:
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2755 tok_val = new token (endmethods_kw, token::methods_end, m_tok_beg,
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2756 m_tok_end);
27770 7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2757 m_at_beginning_of_statement = true;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2758 break;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2759
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2760 case endproperties_kw:
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2761 tok_val = new token (endproperties_kw, token::properties_end, m_tok_beg,
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2762 m_tok_end);
27770 7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2763 m_at_beginning_of_statement = true;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2764 break;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2765
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2766 case for_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2767 case parfor_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2768 case while_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2769 m_looping++;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2770 break;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2771
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2772 case do_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2773 m_at_beginning_of_statement = true;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2774 m_looping++;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2775 break;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2776
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2777 case try_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2778 case unwind_protect_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2779 m_at_beginning_of_statement = true;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2780 break;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2781
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2782 case if_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2783 case switch_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2784 break;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2785
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2786 case get_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2787 case set_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2788 // 'get' and 'set' are keywords in classdef method
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2789 // declarations.
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2790 if (! m_maybe_classdef_get_set_method)
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2791 {
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2792 m_at_beginning_of_statement = previous_at_bos;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2793 return 0;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2794 }
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2795 break;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2796
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2797 case enumeration_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2798 case events_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2799 case methods_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2800 case properties_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2801 // 'properties', 'methods' and 'events' are keywords for
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2802 // classdef blocks.
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2803 if (! m_parsing_classdef)
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2804 {
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2805 m_at_beginning_of_statement = previous_at_bos;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2806 return 0;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2807 }
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2808 // fall through ...
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2809
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2810 case classdef_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2811 // 'classdef' is always a keyword.
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2812 if (! m_force_script && m_token_count == 0 && input_from_file ())
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2813 {
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2814 m_reading_classdef_file = true;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2815 m_reading_script_file = false;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2816 }
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2817 break;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2818
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2819 case function_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2820 m_defining_func++;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2821 m_parsed_function_name.push (false);
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2822
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2823 if (! m_force_script && m_token_count == 0 && input_from_file ())
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2824 {
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2825 m_reading_fcn_file = true;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2826 m_reading_script_file = false;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2827 }
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2828
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2829 if (! (m_reading_fcn_file \|\| m_reading_script_file
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2830 \|\| m_reading_classdef_file))
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2831 {
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2832 // Input must be coming from the terminal or stdin?
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2833 m_buffer_function_text = true;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2834 m_function_text += (m_current_input_line + "\n");
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2835
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2836 // FIXME: do we need to save and restore the file position
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2837 // or just reset the line number here? The goal is to
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2838 // track line info for command-line functions relative
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2839 // to the function keyword.
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2840
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2841 m_filepos = filepos ();
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2842 update_token_positions (slen);
27770 7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2843 }
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2844 break;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2845
28517 6e8a9845d118 Add 'spmd' as interpreter keyword for Matlab compatibility (bug #58676). Rik <rik@octave.org> parents: 28407 diff changeset	2846 case spmd_kw:
28522 a5541f5a78dd make parsing of spmd and endspmd keywords work properly (bug #58676) John W. Eaton <jwe@octave.org> parents: 28517 diff changeset	2847 m_at_beginning_of_statement = true;
28517 6e8a9845d118 Add 'spmd' as interpreter keyword for Matlab compatibility (bug #58676). Rik <rik@octave.org> parents: 28407 diff changeset	2848 break;
6e8a9845d118 Add 'spmd' as interpreter keyword for Matlab compatibility (bug #58676). Rik <rik@octave.org> parents: 28407 diff changeset	2849
6e8a9845d118 Add 'spmd' as interpreter keyword for Matlab compatibility (bug #58676). Rik <rik@octave.org> parents: 28407 diff changeset	2850 case endspmd_kw:
28522 a5541f5a78dd make parsing of spmd and endspmd keywords work properly (bug #58676) John W. Eaton <jwe@octave.org> parents: 28517 diff changeset	2851 tok_val = new token (endspmd_kw, token::spmd_end, m_tok_beg, m_tok_end);
28517 6e8a9845d118 Add 'spmd' as interpreter keyword for Matlab compatibility (bug #58676). Rik <rik@octave.org> parents: 28407 diff changeset	2852 m_at_beginning_of_statement = true;
6e8a9845d118 Add 'spmd' as interpreter keyword for Matlab compatibility (bug #58676). Rik <rik@octave.org> parents: 28407 diff changeset	2853 break;
6e8a9845d118 Add 'spmd' as interpreter keyword for Matlab compatibility (bug #58676). Rik <rik@octave.org> parents: 28407 diff changeset	2854
27770 7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2855 case magic_file_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2856 {
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2857 if ((m_reading_fcn_file \|\| m_reading_script_file
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2858 \|\| m_reading_classdef_file)
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2859 && ! m_fcn_file_full_name.empty ())
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2860 tok_val = new token (magic_file_kw, m_fcn_file_full_name,
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2861 m_tok_beg, m_tok_end);
27770 7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2862 else
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2863 tok_val = new token (magic_file_kw, "stdin", m_tok_beg, m_tok_end);
27770 7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2864 }
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2865 break;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2866
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2867 case magic_line_kw:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2868 {
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2869 int l = m_tok_beg.line ();
27770 7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2870 tok_val = new token (magic_line_kw, static_cast<double> (l),
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2871 "", m_tok_beg, m_tok_end);
27770 7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2872 }
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2873 break;
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2874
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2875 default:
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2876 panic_impossible ();
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2877 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2878
27770 7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2879 if (! tok_val)
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	2880 tok_val = new token (kw->tok, true, m_tok_beg, m_tok_end);
27770 7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2881
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2882 push_token (tok_val);
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2883
7a06e352ac61 style fix John W. Eaton <jwe@octave.org> parents: 27769 diff changeset	2884 return kw->tok;
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2885 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2886
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2887 bool
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2888 base_lexer::fq_identifier_contains_keyword (const std::string& s)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2889 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2890 size_t p1 = 0;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2891 size_t p2;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2892
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2893 std::string s_part;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2894
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2895 do
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2896 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2897 p2 = s.find ('.', p1);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2898
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2899 if (p2 != std::string::npos)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2900 {
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2901 s_part = s.substr (p1, p2 - p1);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2902 p1 = p2 + 1;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2903 }
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2904 else
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2905 s_part = s.substr (p1);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2906
28156 22cddebcb0d0 allow @get and @set to work properly again (bug #57988) John W. Eaton <jwe@octave.org> parents: 28149 diff changeset	2907 if (iskeyword (s_part))
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2908 return true;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2909 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2910 while (p2 != std::string::npos);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2911
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2912 return false;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2913 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2914
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2915 bool
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2916 base_lexer::whitespace_is_significant (void)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2917 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2918 return (m_nesting_level.is_bracket ()
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2919 \|\| (m_nesting_level.is_brace ()
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	2920 && ! m_looking_at_object_index.front ()));
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2921 }
16257 db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	2922 }
db7f07b22b9b 1/10 commits reworking the lexer John W. Eaton <jwe@octave.org> parents: 16255 diff changeset	2923
3220 3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe] jwe parents: 3208 diff changeset	2924 static inline bool
20589 7c0e10f035bd Extend parser to accept binary constants that begin with '0b' or '0B'. Rik <rik@octave.org> parents: 20588 diff changeset	2925 looks_like_bin (const char *s, int len)
7c0e10f035bd Extend parser to accept binary constants that begin with '0b' or '0B'. Rik <rik@octave.org> parents: 20588 diff changeset	2926 {
7c0e10f035bd Extend parser to accept binary constants that begin with '0b' or '0B'. Rik <rik@octave.org> parents: 20588 diff changeset	2927 return (len > 2 && s[0] == '0' && (s[1] == 'b' \|\| s[1] == 'B'));
7c0e10f035bd Extend parser to accept binary constants that begin with '0b' or '0B'. Rik <rik@octave.org> parents: 20588 diff changeset	2928 }
7c0e10f035bd Extend parser to accept binary constants that begin with '0b' or '0B'. Rik <rik@octave.org> parents: 20588 diff changeset	2929
7c0e10f035bd Extend parser to accept binary constants that begin with '0b' or '0B'. Rik <rik@octave.org> parents: 20588 diff changeset	2930 static inline bool
3220 3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe] jwe parents: 3208 diff changeset	2931 looks_like_hex (const char *s, int len)
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe] jwe parents: 3208 diff changeset	2932 {
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe] jwe parents: 3208 diff changeset	2933 return (len > 2 && s[0] == '0' && (s[1] == 'x' \|\| s[1] == 'X'));
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe] jwe parents: 3208 diff changeset	2934 }
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe] jwe parents: 3208 diff changeset	2935
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2936 namespace octave
4037 7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe] jwe parents: 4018 diff changeset	2937 {
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2938 void
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2939 base_lexer::handle_number (void)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2940 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2941 double value = 0.0;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2942 int nread = 0;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2943
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2944 char *yytxt = flex_yytext ();
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2945
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2946 // Strip any underscores
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2947 char *tmptxt = strsave (yytxt);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2948 char *rptr = tmptxt;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2949 char *wptr = tmptxt;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2950 while (*rptr)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2951 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2952 wptr = rptr++;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2953 wptr += (*wptr != '_');
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2954 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2955 *wptr = '\0';
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2956
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2957 if (looks_like_hex (tmptxt, strlen (tmptxt)))
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2958 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2959 uintmax_t long_int_value;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2960
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2961 nread = sscanf (tmptxt, "%jx", &long_int_value);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2962
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2963 value = static_cast<double> (long_int_value);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2964 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2965 else if (looks_like_bin (tmptxt, strlen (tmptxt)))
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2966 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2967 uintmax_t long_int_value = 0;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2968
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2969 for (size_t i = 0; i < strlen (tmptxt); i++)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2970 {
23211 08042580fe93 Fix incorrect handling of 0b binary numbers in complex contstants. Rik <rik@octave.org> parents: 22505 diff changeset	2971 if (tmptxt[i] == '0')
08042580fe93 Fix incorrect handling of 0b binary numbers in complex contstants. Rik <rik@octave.org> parents: 22505 diff changeset	2972 long_int_value <<= 1;
08042580fe93 Fix incorrect handling of 0b binary numbers in complex contstants. Rik <rik@octave.org> parents: 22505 diff changeset	2973 else if (tmptxt[i] == '1')
08042580fe93 Fix incorrect handling of 0b binary numbers in complex contstants. Rik <rik@octave.org> parents: 22505 diff changeset	2974 {
08042580fe93 Fix incorrect handling of 0b binary numbers in complex contstants. Rik <rik@octave.org> parents: 22505 diff changeset	2975 long_int_value <<= 1;
08042580fe93 Fix incorrect handling of 0b binary numbers in complex contstants. Rik <rik@octave.org> parents: 22505 diff changeset	2976 long_int_value += 1;
08042580fe93 Fix incorrect handling of 0b binary numbers in complex contstants. Rik <rik@octave.org> parents: 22505 diff changeset	2977 }
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2978 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2979
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2980 value = static_cast<double> (long_int_value);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2981
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2982 nread = 1; // Just to pass the assert stmt below
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2983 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2984 else
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2985 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2986 char *idx = strpbrk (tmptxt, "Dd");
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2987
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2988 if (idx)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2989 *idx = 'e';
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2990
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2991 nread = sscanf (tmptxt, "%lf", &value);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2992 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2993
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2994 delete [] tmptxt;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2995
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2996 // If yytext doesn't contain a valid number, we are in deep doo doo.
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2997
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2998 assert (nread == 1);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	2999
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3000 m_looking_for_object_index = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3001 m_at_beginning_of_statement = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3002
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	3003 update_token_positions (flex_yyleng ());
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	3004
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	3005 push_token (new token (NUM, value, yytxt, m_tok_beg, m_tok_end));
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3006 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3007
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3008 void
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3009 base_lexer::handle_continuation (void)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3010 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3011 char *yytxt = flex_yytext ();
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3012 int yylng = flex_yyleng ();
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3013
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3014 int offset = 1;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3015 if (yytxt[0] == '\\')
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3016 warn_language_extension_continuation ();
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3017 else
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3018 offset = 3;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3019
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3020 bool have_space = false;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3021 while (offset < yylng)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3022 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3023 char c = yytxt[offset];
26710 d6dd07dce2d2 use inline functions for matching whitespace in lexer John W. Eaton <jwe@octave.org> parents: 26709 diff changeset	3024 if (is_space_or_tab (c))
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3025 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3026 have_space = true;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3027 offset++;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3028 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3029 else
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3030 break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3031 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3032
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3033 if (have_space)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3034 mark_previous_token_trailing_space ();
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3035
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3036 bool have_comment = false;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3037 while (offset < yylng)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3038 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3039 char c = yytxt[offset];
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3040 if (c == '#' \|\| c == '%')
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3041 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3042 have_comment = true;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3043 offset++;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3044 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3045 else
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3046 break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3047 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3048
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3049 if (have_comment)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3050 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3051 m_comment_text = &yytxt[offset];
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3052
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3053 // finish_comment sets m_at_beginning_of_statement to true but
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3054 // that's not be correct if we are handling a continued
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3055 // statement. Preserve the current state.
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3056
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3057 bool saved_bos = m_at_beginning_of_statement;
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3058
23750 ea879bc55272 move comment_list and comment_elt classes to octave namespace John W. Eaton <jwe@octave.org> parents: 23730 diff changeset	3059 finish_comment (comment_elt::end_of_line);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3060
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3061 m_at_beginning_of_statement = saved_bos;
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3062 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3063
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	3064 m_filepos.next_line ();
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3065 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3066
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3067 void
23750 ea879bc55272 move comment_list and comment_elt classes to octave namespace John W. Eaton <jwe@octave.org> parents: 23730 diff changeset	3068 base_lexer::finish_comment (comment_elt::comment_type typ)
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3069 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3070 bool copyright = looks_like_copyright (m_comment_text);
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3071
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3072 if (m_nesting_level.none () && m_help_text.empty () && ! m_comment_text.empty ()
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3073 && ! copyright && ! looks_like_shebang (m_comment_text))
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3074 m_help_text = m_comment_text;
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3075
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3076 if (copyright)
23750 ea879bc55272 move comment_list and comment_elt classes to octave namespace John W. Eaton <jwe@octave.org> parents: 23730 diff changeset	3077 typ = comment_elt::copyright;
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3078
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3079 m_comment_buf.append (m_comment_text, typ);
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3080
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3081 m_comment_text = "";
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3082
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3083 m_at_beginning_of_statement = true;
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3084 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3085
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3086 int
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3087 base_lexer::handle_close_bracket (int bracket_type)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3088 {
25708 ca38400776bc track column count in lexer in a few more places (bug #34852) John W. Eaton <jwe@octave.org> parents: 25646 diff changeset	3089 m_looking_at_object_index.pop_front ();
ca38400776bc track column count in lexer in a few more places (bug #34852) John W. Eaton <jwe@octave.org> parents: 25646 diff changeset	3090
ca38400776bc track column count in lexer in a few more places (bug #34852) John W. Eaton <jwe@octave.org> parents: 25646 diff changeset	3091 m_looking_for_object_index = true;
ca38400776bc track column count in lexer in a few more places (bug #34852) John W. Eaton <jwe@octave.org> parents: 25646 diff changeset	3092 m_at_beginning_of_statement = false;
ca38400776bc track column count in lexer in a few more places (bug #34852) John W. Eaton <jwe@octave.org> parents: 25646 diff changeset	3093
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3094 if (! m_nesting_level.none ())
16126 5c885c13bfa3 localize use of yylval.tok_val in lexical_feedback member functions John W. Eaton <jwe@octave.org> parents: 16125 diff changeset	3095 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3096 m_nesting_level.remove ();
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3097
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3098 if (bracket_type == ']')
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3099 m_bracketflag--;
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3100 else if (bracket_type == '}')
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3101 m_braceflag--;
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3102 else
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3103 panic_impossible ();
16126 5c885c13bfa3 localize use of yylval.tok_val in lexical_feedback member functions John W. Eaton <jwe@octave.org> parents: 16125 diff changeset	3104 }
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3105
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3106 pop_start_state ();
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3107
25708 ca38400776bc track column count in lexer in a few more places (bug #34852) John W. Eaton <jwe@octave.org> parents: 25646 diff changeset	3108 return count_token (bracket_type);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3109 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3110
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3111 bool
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3112 base_lexer::looks_like_command_arg (void)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3113 {
26662 05fc703b419a update handling of command-style function call syntax in eval John W. Eaton <jwe@octave.org> parents: 26661 diff changeset	3114 if (! m_allow_command_syntax)
05fc703b419a update handling of command-style function call syntax in eval John W. Eaton <jwe@octave.org> parents: 26661 diff changeset	3115 return false;
05fc703b419a update handling of command-style function call syntax in eval John W. Eaton <jwe@octave.org> parents: 26661 diff changeset	3116
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3117 bool space_before = space_follows_previous_token ();
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3118 bool space_after = looking_at_space ();
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3119
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3120 return (space_before && ! space_after
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3121 && previous_token_may_be_command ());
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3122 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3123
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3124 int
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3125 base_lexer::handle_superclass_identifier (void)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3126 {
28149 026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	3127 update_token_positions (flex_yyleng ());
026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	3128
26686 581d01526b34 eliminate unnecessary tree_funcall class John W. Eaton <jwe@octave.org> parents: 26662 diff changeset	3129 std::string txt = flex_yytext ();
581d01526b34 eliminate unnecessary tree_funcall class John W. Eaton <jwe@octave.org> parents: 26662 diff changeset	3130
26708 606605d0cd31 allow spaces in FQ_IDENT, SUPERCLASSREF, and METAQUERY tokens in lexer John W. Eaton <jwe@octave.org> parents: 26686 diff changeset	3131 txt.erase (std::remove_if (txt.begin (), txt.end (), is_space_or_tab),
606605d0cd31 allow spaces in FQ_IDENT, SUPERCLASSREF, and METAQUERY tokens in lexer John W. Eaton <jwe@octave.org> parents: 26686 diff changeset	3132 txt.end ());
606605d0cd31 allow spaces in FQ_IDENT, SUPERCLASSREF, and METAQUERY tokens in lexer John W. Eaton <jwe@octave.org> parents: 26686 diff changeset	3133
26686 581d01526b34 eliminate unnecessary tree_funcall class John W. Eaton <jwe@octave.org> parents: 26662 diff changeset	3134 size_t pos = txt.find ("@");
581d01526b34 eliminate unnecessary tree_funcall class John W. Eaton <jwe@octave.org> parents: 26662 diff changeset	3135
26718 9b0335f4bc74 revise naming of the parts of a superclass reference John W. Eaton <jwe@octave.org> parents: 26710 diff changeset	3136 std::string meth = txt.substr (0, pos);
26686 581d01526b34 eliminate unnecessary tree_funcall class John W. Eaton <jwe@octave.org> parents: 26662 diff changeset	3137 std::string cls = txt.substr (pos + 1);
581d01526b34 eliminate unnecessary tree_funcall class John W. Eaton <jwe@octave.org> parents: 26662 diff changeset	3138
28156 22cddebcb0d0 allow @get and @set to work properly again (bug #57988) John W. Eaton <jwe@octave.org> parents: 28149 diff changeset	3139 if (iskeyword (meth) \|\| fq_identifier_contains_keyword (cls))
16126 5c885c13bfa3 localize use of yylval.tok_val in lexical_feedback member functions John W. Eaton <jwe@octave.org> parents: 16125 diff changeset	3140 {
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3141 token *tok
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3142 = new token (LEXICAL_ERROR,
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3143 "method, class, and package names may not be keywords",
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	3144 m_tok_beg, m_tok_end);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3145
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3146 push_token (tok);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3147
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3148 return count_token_internal (LEXICAL_ERROR);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3149 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3150
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	3151 push_token (new token (SUPERCLASSREF, meth, cls, m_tok_beg, m_tok_end));
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	3152
0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	3153 m_filepos.increment_column (flex_yyleng ());
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3154
28149 026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	3155 return count_token_internal (SUPERCLASSREF);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3156 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3157
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3158 int
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3159 base_lexer::handle_meta_identifier (void)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3160 {
26708 606605d0cd31 allow spaces in FQ_IDENT, SUPERCLASSREF, and METAQUERY tokens in lexer John W. Eaton <jwe@octave.org> parents: 26686 diff changeset	3161 std::string txt = flex_yytext ();
606605d0cd31 allow spaces in FQ_IDENT, SUPERCLASSREF, and METAQUERY tokens in lexer John W. Eaton <jwe@octave.org> parents: 26686 diff changeset	3162
606605d0cd31 allow spaces in FQ_IDENT, SUPERCLASSREF, and METAQUERY tokens in lexer John W. Eaton <jwe@octave.org> parents: 26686 diff changeset	3163 txt.erase (std::remove_if (txt.begin (), txt.end (), is_space_or_tab),
606605d0cd31 allow spaces in FQ_IDENT, SUPERCLASSREF, and METAQUERY tokens in lexer John W. Eaton <jwe@octave.org> parents: 26686 diff changeset	3164 txt.end ());
606605d0cd31 allow spaces in FQ_IDENT, SUPERCLASSREF, and METAQUERY tokens in lexer John W. Eaton <jwe@octave.org> parents: 26686 diff changeset	3165
606605d0cd31 allow spaces in FQ_IDENT, SUPERCLASSREF, and METAQUERY tokens in lexer John W. Eaton <jwe@octave.org> parents: 26686 diff changeset	3166 // Eliminate leading '?'
606605d0cd31 allow spaces in FQ_IDENT, SUPERCLASSREF, and METAQUERY tokens in lexer John W. Eaton <jwe@octave.org> parents: 26686 diff changeset	3167 std::string cls = txt.substr (1);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3168
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	3169 // Token positions should have already been updated before this
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	3170 // function is called.
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	3171
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3172 if (fq_identifier_contains_keyword (cls))
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3173 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3174 token *tok = new token (LEXICAL_ERROR,
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3175 "class and package names may not be keywords",
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	3176 m_tok_beg, m_tok_end);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3177 push_token (tok);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3178
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3179 return count_token_internal (LEXICAL_ERROR);
16126 5c885c13bfa3 localize use of yylval.tok_val in lexical_feedback member functions John W. Eaton <jwe@octave.org> parents: 16125 diff changeset	3180 }
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3181
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	3182 push_token (new token (METAQUERY, cls, m_tok_beg, m_tok_end));
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	3183
0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	3184 m_filepos.increment_column (flex_yyleng ());
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3185
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3186 return METAQUERY;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3187 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3188
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3189 int
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3190 base_lexer::handle_fq_identifier (void)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3191 {
26708 606605d0cd31 allow spaces in FQ_IDENT, SUPERCLASSREF, and METAQUERY tokens in lexer John W. Eaton <jwe@octave.org> parents: 26686 diff changeset	3192 std::string txt = flex_yytext ();
606605d0cd31 allow spaces in FQ_IDENT, SUPERCLASSREF, and METAQUERY tokens in lexer John W. Eaton <jwe@octave.org> parents: 26686 diff changeset	3193
606605d0cd31 allow spaces in FQ_IDENT, SUPERCLASSREF, and METAQUERY tokens in lexer John W. Eaton <jwe@octave.org> parents: 26686 diff changeset	3194 txt.erase (std::remove_if (txt.begin (), txt.end (), is_space_or_tab),
606605d0cd31 allow spaces in FQ_IDENT, SUPERCLASSREF, and METAQUERY tokens in lexer John W. Eaton <jwe@octave.org> parents: 26686 diff changeset	3195 txt.end ());
606605d0cd31 allow spaces in FQ_IDENT, SUPERCLASSREF, and METAQUERY tokens in lexer John W. Eaton <jwe@octave.org> parents: 26686 diff changeset	3196
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	3197 // Token positions should have already been updated before this
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	3198 // function is called.
2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	3199
26708 606605d0cd31 allow spaces in FQ_IDENT, SUPERCLASSREF, and METAQUERY tokens in lexer John W. Eaton <jwe@octave.org> parents: 26686 diff changeset	3200 if (fq_identifier_contains_keyword (txt))
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3201 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3202 token *tok
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3203 = new token (LEXICAL_ERROR,
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3204 "function, method, class, and package names may not be keywords",
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	3205 m_tok_beg, m_tok_end);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3206
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3207 push_token (tok);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3208
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3209 return count_token_internal (LEXICAL_ERROR);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3210 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3211
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	3212 push_token (new token (FQ_IDENT, txt, m_tok_beg, m_tok_end));
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	3213
0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	3214 m_filepos.increment_column (flex_yyleng ());
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3215
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3216 return FQ_IDENT;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3217 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3218
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3219 // Figure out exactly what kind of token to return when we have seen
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3220 // an identifier. Handles keywords. Return -1 if the identifier
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3221 // should be ignored.
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3222
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3223 int
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3224 base_lexer::handle_identifier (void)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3225 {
28149 026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	3226 update_token_positions (flex_yyleng ());
026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	3227
026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	3228 std::string ident = flex_yytext ();
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3229
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3230 // If we are expecting a structure element, avoid recognizing
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3231 // keywords and other special names and return STRUCT_ELT, which is
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3232 // a string that is also a valid identifier.
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3233
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3234 if (m_looking_at_indirect_ref)
16119 b31eb56f4d84 maint: reorder class definitions in lex.ll John W. Eaton <jwe@octave.org> parents: 16118 diff changeset	3235 {
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	3236 push_token (new token (STRUCT_ELT, ident, m_tok_beg, m_tok_end));
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3237
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3238 m_looking_for_object_index = true;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3239
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3240 return STRUCT_ELT;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3241 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3242
28156 22cddebcb0d0 allow @get and @set to work properly again (bug #57988) John W. Eaton <jwe@octave.org> parents: 28149 diff changeset	3243 // If ident is a keyword token, then make_keyword_token will set
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3244 // m_at_beginning_of_statement. For example, if tok is an IF
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3245 // token, then m_at_beginning_of_statement will be false.
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3246
27771 cd566153edd6 split base_lexer::is_keyword_token into two functions John W. Eaton <jwe@octave.org> parents: 27770 diff changeset	3247 int kw_token = make_keyword_token (ident);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3248
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3249 // If we have a regular keyword, return it.
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3250 // Keywords can be followed by identifiers.
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3251
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3252 if (kw_token)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3253 {
28149 026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	3254 m_looking_for_object_index = false;
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3255
27771 cd566153edd6 split base_lexer::is_keyword_token into two functions John W. Eaton <jwe@octave.org> parents: 27770 diff changeset	3256 // The call to make_keyword_token set m_at_beginning_of_statement.
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3257
28149 026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	3258 return count_token_internal (kw_token);
16119 b31eb56f4d84 maint: reorder class definitions in lex.ll John W. Eaton <jwe@octave.org> parents: 16118 diff changeset	3259 }
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3260
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3261 // Find the token in the symbol table.
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3262
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3263 symbol_scope scope = m_symtab_context.curr_scope ();
24361 8bcfddad15ec use shared_ptr to manage symbol_scope objects John W. Eaton <jwe@octave.org> parents: 24356 diff changeset	3264
8bcfddad15ec use shared_ptr to manage symbol_scope objects John W. Eaton <jwe@octave.org> parents: 24356 diff changeset	3265 symbol_record sr = (scope ? scope.insert (ident) : symbol_record (ident));
23602 214cb58ccc1c use pointer to scope instead of scope id John W. Eaton <jwe@octave.org> parents: 23599 diff changeset	3266
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	3267 token *tok = new token (NAME, sr, m_tok_beg, m_tok_end);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3268
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3269 // The following symbols are handled specially so that things like
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3270 //
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3271 // pi +1
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3272 //
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3273 // are parsed as an addition expression instead of as a command-style
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3274 // function call with the argument "+1".
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3275
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3276 if (m_at_beginning_of_statement
27736 bd80e14f268a improve parse error message for @()x+=expr (bug #57255) John W. Eaton <jwe@octave.org> parents: 27578 diff changeset	3277 && ! (m_parsing_anon_fcn_body
bd80e14f268a improve parse error message for @()x+=expr (bug #57255) John W. Eaton <jwe@octave.org> parents: 27578 diff changeset	3278 \|\| is_variable (ident, scope)
bd80e14f268a improve parse error message for @()x+=expr (bug #57255) John W. Eaton <jwe@octave.org> parents: 27578 diff changeset	3279 \|\| ident == "e" \|\| ident == "pi"
bd80e14f268a improve parse error message for @()x+=expr (bug #57255) John W. Eaton <jwe@octave.org> parents: 27578 diff changeset	3280 \|\| ident == "I" \|\| ident == "i"
bd80e14f268a improve parse error message for @()x+=expr (bug #57255) John W. Eaton <jwe@octave.org> parents: 27578 diff changeset	3281 \|\| ident == "J" \|\| ident == "j"
bd80e14f268a improve parse error message for @()x+=expr (bug #57255) John W. Eaton <jwe@octave.org> parents: 27578 diff changeset	3282 \|\| ident == "Inf" \|\| ident == "inf"
bd80e14f268a improve parse error message for @()x+=expr (bug #57255) John W. Eaton <jwe@octave.org> parents: 27578 diff changeset	3283 \|\| ident == "NaN" \|\| ident == "nan"))
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3284 tok->mark_may_be_command ();
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3285
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3286 push_token (tok);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3287
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3288 // The magic end index can't be indexed.
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3289
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3290 if (ident != "end")
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3291 m_looking_for_object_index = true;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3292
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3293 m_at_beginning_of_statement = false;
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3294
28149 026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	3295 return count_token_internal (NAME);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3296 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3297
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3298 void
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3299 base_lexer::maybe_warn_separator_insert (char sep)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3300 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3301 std::string nm = m_fcn_file_full_name;
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3302
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3303 if (nm.empty ())
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3304 warning_with_id ("Octave:separator-insert",
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3305 "potential auto-insertion of '%c' near line %d",
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	3306 sep, m_filepos.line ());
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3307 else
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3308 warning_with_id ("Octave:separator-insert",
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3309 "potential auto-insertion of '%c' near line %d of file %s",
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	3310 sep, m_filepos.line (), nm.c_str ());
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3311 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3312
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3313 void
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3314 base_lexer::warn_single_quote_string (void)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3315 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3316 std::string nm = m_fcn_file_full_name;
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3317
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3318 if (nm.empty ())
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3319 warning_with_id ("Octave:single-quote-string",
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3320 "single quote delimited string near line %d",
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	3321 m_filepos.line ());
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3322 else
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3323 warning_with_id ("Octave:single-quote-string",
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3324 "single quote delimited string near line %d of file %s",
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	3325 m_filepos.line (), nm.c_str ());
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3326 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3327
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3328 void
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3329 base_lexer::warn_language_extension (const std::string& msg)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3330 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3331 std::string nm = m_fcn_file_full_name;
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3332
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3333 if (nm.empty ())
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3334 warning_with_id ("Octave:language-extension",
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3335 "Octave language extension used: %s",
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3336 msg.c_str ());
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3337 else
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3338 warning_with_id ("Octave:language-extension",
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3339 "Octave language extension used: %s near line %d offile %s",
27766 0ca7f17de041 use file position object to track line and column info in lexer and parser John W. Eaton <jwe@octave.org> parents: 27760 diff changeset	3340 msg.c_str (), m_filepos.line (), nm.c_str ());
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3341 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3342
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3343 void
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3344 base_lexer::maybe_warn_language_extension_comment (char c)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3345 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3346 if (c == '#')
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3347 warn_language_extension ("# used as comment character");
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3348 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3349
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3350 void
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3351 base_lexer::warn_language_extension_continuation (void)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3352 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3353 warn_language_extension ("\\ used as line continuation marker");
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3354 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3355
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3356 void
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3357 base_lexer::warn_language_extension_operator (const std::string& op)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3358 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3359 std::string t = op;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3360 int n = t.length ();
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3361 if (t[n-1] == '\n')
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3362 t.resize (n-1);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3363 warn_language_extension (t + " used as operator");
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3364 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3365
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3366 void
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3367 base_lexer::push_token (token *tok)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3368 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3369 YYSTYPE *lval = yyget_lval (m_scanner);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3370 lval->tok_val = tok;
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3371 m_tokens.push (tok);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3372 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3373
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3374 token *
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3375 base_lexer::current_token (void)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3376 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3377 YYSTYPE *lval = yyget_lval (m_scanner);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3378 return lval->tok_val;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3379 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3380
28264 d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	3381 size_t
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	3382 base_lexer::pending_token_count (void) const
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	3383 {
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	3384 return m_tokens.size ();
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	3385 }
d938c4d22200 handle comments in multi-line statements with push parser/lexer (bug #58198) John W. Eaton <jwe@octave.org> parents: 28262 diff changeset	3386
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3387 void
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3388 base_lexer::display_token (int tok)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3389 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3390 switch (tok)
16119 b31eb56f4d84 maint: reorder class definitions in lex.ll John W. Eaton <jwe@octave.org> parents: 16118 diff changeset	3391 {
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3392 case '=': std::cerr << "'='\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3393 case ':': std::cerr << "':'\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3394 case '-': std::cerr << "'-'\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3395 case '+': std::cerr << "'+'\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3396 case '': std::cerr << "''\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3397 case '/': std::cerr << "'/'\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3398 case ADD_EQ: std::cerr << "ADD_EQ\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3399 case SUB_EQ: std::cerr << "SUB_EQ\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3400 case MUL_EQ: std::cerr << "MUL_EQ\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3401 case DIV_EQ: std::cerr << "DIV_EQ\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3402 case LEFTDIV_EQ: std::cerr << "LEFTDIV_EQ\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3403 case POW_EQ: std::cerr << "POW_EQ\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3404 case EMUL_EQ: std::cerr << "EMUL_EQ\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3405 case EDIV_EQ: std::cerr << "EDIV_EQ\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3406 case ELEFTDIV_EQ: std::cerr << "ELEFTDIV_EQ\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3407 case EPOW_EQ: std::cerr << "EPOW_EQ\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3408 case AND_EQ: std::cerr << "AND_EQ\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3409 case OR_EQ: std::cerr << "OR_EQ\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3410 case EXPR_AND_AND: std::cerr << "EXPR_AND_AND\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3411 case EXPR_OR_OR: std::cerr << "EXPR_OR_OR\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3412 case EXPR_AND: std::cerr << "EXPR_AND\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3413 case EXPR_OR: std::cerr << "EXPR_OR\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3414 case EXPR_NOT: std::cerr << "EXPR_NOT\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3415 case EXPR_LT: std::cerr << "EXPR_LT\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3416 case EXPR_LE: std::cerr << "EXPR_LE\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3417 case EXPR_EQ: std::cerr << "EXPR_EQ\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3418 case EXPR_NE: std::cerr << "EXPR_NE\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3419 case EXPR_GE: std::cerr << "EXPR_GE\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3420 case EXPR_GT: std::cerr << "EXPR_GT\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3421 case LEFTDIV: std::cerr << "LEFTDIV\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3422 case EMUL: std::cerr << "EMUL\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3423 case EDIV: std::cerr << "EDIV\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3424 case ELEFTDIV: std::cerr << "ELEFTDIV\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3425 case EPLUS: std::cerr << "EPLUS\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3426 case EMINUS: std::cerr << "EMINUS\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3427 case HERMITIAN: std::cerr << "HERMITIAN\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3428 case TRANSPOSE: std::cerr << "TRANSPOSE\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3429 case PLUS_PLUS: std::cerr << "PLUS_PLUS\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3430 case MINUS_MINUS: std::cerr << "MINUS_MINUS\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3431 case POW: std::cerr << "POW\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3432 case EPOW: std::cerr << "EPOW\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3433
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3434 case NUM:
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3435 case IMAG_NUM:
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3436 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3437 token *tok_val = current_token ();
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3438 std::cerr << (tok == NUM ? "NUM" : "IMAG_NUM")
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3439 << " [" << tok_val->number () << "]\n";
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3440 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3441 break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3442
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3443 case STRUCT_ELT:
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3444 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3445 token *tok_val = current_token ();
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3446 std::cerr << "STRUCT_ELT [" << tok_val->text () << "]\n";
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3447 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3448 break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3449
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3450 case NAME:
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3451 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3452 token *tok_val = current_token ();
24270 bc3819b7cca1 don't use symbol_table:: nesting for symbol_record, symbol_scope, or fcn_info John W. Eaton <jwe@octave.org> parents: 24092 diff changeset	3453 symbol_record sr = tok_val->sym_rec ();
23602 214cb58ccc1c use pointer to scope instead of scope id John W. Eaton <jwe@octave.org> parents: 23599 diff changeset	3454 std::cerr << "NAME [" << sr.name () << "]\n";
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3455 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3456 break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3457
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3458 case END: std::cerr << "END\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3459
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3460 case DQ_STRING:
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3461 case SQ_STRING:
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3462 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3463 token *tok_val = current_token ();
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3464
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3465 std::cerr << (tok == DQ_STRING ? "DQ_STRING" : "SQ_STRING")
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3466 << " [" << tok_val->text () << "]\n";
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3467 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3468 break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3469
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3470 case FOR: std::cerr << "FOR\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3471 case WHILE: std::cerr << "WHILE\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3472 case DO: std::cerr << "DO\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3473 case UNTIL: std::cerr << "UNTIL\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3474 case IF: std::cerr << "IF\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3475 case ELSEIF: std::cerr << "ELSEIF\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3476 case ELSE: std::cerr << "ELSE\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3477 case SWITCH: std::cerr << "SWITCH\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3478 case CASE: std::cerr << "CASE\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3479 case OTHERWISE: std::cerr << "OTHERWISE\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3480 case BREAK: std::cerr << "BREAK\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3481 case CONTINUE: std::cerr << "CONTINUE\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3482 case FUNC_RET: std::cerr << "FUNC_RET\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3483 case UNWIND: std::cerr << "UNWIND\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3484 case CLEANUP: std::cerr << "CLEANUP\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3485 case TRY: std::cerr << "TRY\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3486 case CATCH: std::cerr << "CATCH\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3487 case GLOBAL: std::cerr << "GLOBAL\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3488 case PERSISTENT: std::cerr << "PERSISTENT\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3489 case FCN_HANDLE: std::cerr << "FCN_HANDLE\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3490 case END_OF_INPUT: std::cerr << "END_OF_INPUT\n\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3491 case LEXICAL_ERROR: std::cerr << "LEXICAL_ERROR\n\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3492 case FCN: std::cerr << "FCN\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3493 case INPUT_FILE: std::cerr << "INPUT_FILE\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3494 case SUPERCLASSREF: std::cerr << "SUPERCLASSREF\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3495 case METAQUERY: std::cerr << "METAQUERY\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3496 case GET: std::cerr << "GET\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3497 case SET: std::cerr << "SET\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3498 case PROPERTIES: std::cerr << "PROPERTIES\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3499 case METHODS: std::cerr << "METHODS\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3500 case EVENTS: std::cerr << "EVENTS\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3501 case CLASSDEF: std::cerr << "CLASSDEF\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3502 case '\n': std::cerr << "\\n\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3503 case '\r': std::cerr << "\\r\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3504 case '\t': std::cerr << "TAB\n"; break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3505 default:
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3506 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3507 if (tok < 256 && tok > 31)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3508 std::cerr << static_cast<char> (tok) << "\n";
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3509 else
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3510 std::cerr << "UNKNOWN(" << tok << ")\n";
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3511 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3512 break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3513 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3514 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3515
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3516 void
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3517 base_lexer::fatal_error (const char *msg)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3518 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3519 error ("fatal lexer error: %s", msg);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3520 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3521
25443 2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	3522 bool
2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	3523 base_lexer::debug_flag (void) const
2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	3524 {
2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	3525 settings& stgs = m_interpreter.get_settings ();
2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	3526 return stgs.lexer_debug_flag ();
2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	3527 }
2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	3528
2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	3529 bool
2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	3530 base_lexer::display_tokens (void) const
2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	3531 {
2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	3532 settings& stgs = m_interpreter.get_settings ();
2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	3533 return stgs.display_tokens ();
2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	3534 }
2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	3535
2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	3536 void
2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	3537 base_lexer::increment_token_count (void)
2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	3538 {
2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	3539 settings& stgs = m_interpreter.get_settings ();
2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	3540 stgs.increment_token_count ();
2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	3541
2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	3542 m_token_count++;
2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	3543 }
2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	3544
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3545 void
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3546 base_lexer::lexer_debug (const char *pattern)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3547 {
25443 2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	3548 if (debug_flag ())
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3549 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3550 std::cerr << std::endl;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3551
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3552 display_start_state ();
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3553
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3554 std::cerr << "P: " << pattern << std::endl;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3555 std::cerr << "T: " << flex_yytext () << std::endl;
16119 b31eb56f4d84 maint: reorder class definitions in lex.ll John W. Eaton <jwe@octave.org> parents: 16118 diff changeset	3556 }
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3557 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3558
25994 f881d3e271d2 eliminate global and file-scope static variables in oct-hist.cc John W. Eaton <jwe@octave.org> parents: 25719 diff changeset	3559 bool
f881d3e271d2 eliminate global and file-scope static variables in oct-hist.cc John W. Eaton <jwe@octave.org> parents: 25719 diff changeset	3560 base_lexer::input_from_tmp_history_file (void)
f881d3e271d2 eliminate global and file-scope static variables in oct-hist.cc John W. Eaton <jwe@octave.org> parents: 25719 diff changeset	3561 {
f881d3e271d2 eliminate global and file-scope static variables in oct-hist.cc John W. Eaton <jwe@octave.org> parents: 25719 diff changeset	3562 history_system& history_sys = m_interpreter.get_history_system ();
f881d3e271d2 eliminate global and file-scope static variables in oct-hist.cc John W. Eaton <jwe@octave.org> parents: 25719 diff changeset	3563
f881d3e271d2 eliminate global and file-scope static variables in oct-hist.cc John W. Eaton <jwe@octave.org> parents: 25719 diff changeset	3564 return history_sys.input_from_tmp_file ();
f881d3e271d2 eliminate global and file-scope static variables in oct-hist.cc John W. Eaton <jwe@octave.org> parents: 25719 diff changeset	3565 }
f881d3e271d2 eliminate global and file-scope static variables in oct-hist.cc John W. Eaton <jwe@octave.org> parents: 25719 diff changeset	3566
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3567 void
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3568 base_lexer::push_start_state (int state)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3569 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3570 OCTAVE_YYG;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3571
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3572 start_state_stack.push (state);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3573
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3574 BEGIN (start_state ());
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3575 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3576
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3577 void
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3578 base_lexer::pop_start_state (void)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3579 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3580 OCTAVE_YYG;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3581
16224 4a848eb52de2 use stack for tracking lexer start states John W. Eaton <jwe@octave.org> parents: 16209 diff changeset	3582 start_state_stack.pop ();
4a848eb52de2 use stack for tracking lexer start states John W. Eaton <jwe@octave.org> parents: 16209 diff changeset	3583
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3584 BEGIN (start_state ());
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3585 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3586
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3587 void
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3588 base_lexer::clear_start_state (void)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3589 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3590 while (! start_state_stack.empty ())
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3591 start_state_stack.pop ();
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3592
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3593 push_start_state (INITIAL);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3594 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3595
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3596 void
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3597 base_lexer::display_start_state (void) const
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3598 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3599 std::cerr << "S: ";
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3600
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3601 switch (start_state ())
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3602 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3603 case INITIAL:
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3604 std::cerr << "INITIAL" << std::endl;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3605 break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3606
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3607 case COMMAND_START:
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3608 std::cerr << "COMMAND_START" << std::endl;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3609 break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3610
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3611 case MATRIX_START:
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3612 std::cerr << "MATRIX_START" << std::endl;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3613 break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3614
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3615 case INPUT_FILE_START:
26709 17e7d310def8 revamp parsing of superclass identifiers in classdef decls John W. Eaton <jwe@octave.org> parents: 26708 diff changeset	3616 std::cerr << "INPUT_FILE_START" << std::endl;
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3617 break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3618
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3619 case BLOCK_COMMENT_START:
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3620 std::cerr << "BLOCK_COMMENT_START" << std::endl;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3621 break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3622
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3623 case LINE_COMMENT_START:
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3624 std::cerr << "LINE_COMMENT_START" << std::endl;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3625 break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3626
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3627 case DQ_STRING_START:
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3628 std::cerr << "DQ_STRING_START" << std::endl;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3629 break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3630
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3631 case SQ_STRING_START:
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3632 std::cerr << "SQ_STRING_START" << std::endl;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3633 break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3634
26709 17e7d310def8 revamp parsing of superclass identifiers in classdef decls John W. Eaton <jwe@octave.org> parents: 26708 diff changeset	3635 case FQ_IDENT_START:
17e7d310def8 revamp parsing of superclass identifiers in classdef decls John W. Eaton <jwe@octave.org> parents: 26708 diff changeset	3636 std::cerr << "FQ_IDENT_START" << std::endl;
17e7d310def8 revamp parsing of superclass identifiers in classdef decls John W. Eaton <jwe@octave.org> parents: 26708 diff changeset	3637 break;
17e7d310def8 revamp parsing of superclass identifiers in classdef decls John W. Eaton <jwe@octave.org> parents: 26708 diff changeset	3638
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3639 default:
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3640 std::cerr << "UNKNOWN START STATE!" << std::endl;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3641 break;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3642 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3643 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3644
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3645 bool
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3646 base_lexer::maybe_unput_comma_before_unary_op (int tok)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3647 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3648 int prev_tok = previous_token_value ();
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3649
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3650 bool unput_comma = false;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3651
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3652 if (whitespace_is_significant () && space_follows_previous_token ())
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3653 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3654 int c = text_yyinput ();
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3655 xunput (c);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3656
26710 d6dd07dce2d2 use inline functions for matching whitespace in lexer John W. Eaton <jwe@octave.org> parents: 26709 diff changeset	3657 bool space_after = is_space_or_tab (c);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3658
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3659 if (! (prev_tok == '[' \|\| prev_tok == '{'
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3660 \|\| previous_token_is_binop ()
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3661 \|\| ((tok == '+' \|\| tok == '-') && space_after)))
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3662 unput_comma = true;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3663 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3664
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3665 return unput_comma;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3666 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3667
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3668 int
28149 026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	3669 base_lexer::handle_op (int tok, bool bos, bool compat)
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3670 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3671 if (! compat)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3672 warn_language_extension_operator (flex_yytext ());
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3673
28149 026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	3674 update_token_positions (flex_yyleng ());
026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	3675
026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	3676 push_token (new token (tok, m_tok_beg, m_tok_end));
026bff6a54d7 improve position tracking in the lexer (bug #57924) John W. Eaton <jwe@octave.org> parents: 28147 diff changeset	3677
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3678 m_looking_for_object_index = false;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3679 m_at_beginning_of_statement = bos;
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3680
26709 17e7d310def8 revamp parsing of superclass identifiers in classdef decls John W. Eaton <jwe@octave.org> parents: 26708 diff changeset	3681 switch (tok)
17e7d310def8 revamp parsing of superclass identifiers in classdef decls John W. Eaton <jwe@octave.org> parents: 26708 diff changeset	3682 {
17e7d310def8 revamp parsing of superclass identifiers in classdef decls John W. Eaton <jwe@octave.org> parents: 26708 diff changeset	3683 case EXPR_LT:
17e7d310def8 revamp parsing of superclass identifiers in classdef decls John W. Eaton <jwe@octave.org> parents: 26708 diff changeset	3684 if (m_parsing_classdef_decl)
17e7d310def8 revamp parsing of superclass identifiers in classdef decls John W. Eaton <jwe@octave.org> parents: 26708 diff changeset	3685 {
17e7d310def8 revamp parsing of superclass identifiers in classdef decls John W. Eaton <jwe@octave.org> parents: 26708 diff changeset	3686 m_parsing_classdef_superclass = true;
17e7d310def8 revamp parsing of superclass identifiers in classdef decls John W. Eaton <jwe@octave.org> parents: 26708 diff changeset	3687 push_start_state (FQ_IDENT_START);
17e7d310def8 revamp parsing of superclass identifiers in classdef decls John W. Eaton <jwe@octave.org> parents: 26708 diff changeset	3688 }
17e7d310def8 revamp parsing of superclass identifiers in classdef decls John W. Eaton <jwe@octave.org> parents: 26708 diff changeset	3689 break;
17e7d310def8 revamp parsing of superclass identifiers in classdef decls John W. Eaton <jwe@octave.org> parents: 26708 diff changeset	3690
17e7d310def8 revamp parsing of superclass identifiers in classdef decls John W. Eaton <jwe@octave.org> parents: 26708 diff changeset	3691 case EXPR_AND:
17e7d310def8 revamp parsing of superclass identifiers in classdef decls John W. Eaton <jwe@octave.org> parents: 26708 diff changeset	3692 if (m_parsing_classdef_superclass)
17e7d310def8 revamp parsing of superclass identifiers in classdef decls John W. Eaton <jwe@octave.org> parents: 26708 diff changeset	3693 push_start_state (FQ_IDENT_START);
17e7d310def8 revamp parsing of superclass identifiers in classdef decls John W. Eaton <jwe@octave.org> parents: 26708 diff changeset	3694 break;
17e7d310def8 revamp parsing of superclass identifiers in classdef decls John W. Eaton <jwe@octave.org> parents: 26708 diff changeset	3695
17e7d310def8 revamp parsing of superclass identifiers in classdef decls John W. Eaton <jwe@octave.org> parents: 26708 diff changeset	3696 default:
17e7d310def8 revamp parsing of superclass identifiers in classdef decls John W. Eaton <jwe@octave.org> parents: 26708 diff changeset	3697 break;
17e7d310def8 revamp parsing of superclass identifiers in classdef decls John W. Eaton <jwe@octave.org> parents: 26708 diff changeset	3698 }
17e7d310def8 revamp parsing of superclass identifiers in classdef decls John W. Eaton <jwe@octave.org> parents: 26708 diff changeset	3699
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3700 return count_token_internal (tok);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3701 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3702
27777 3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	3703 // When a command argument boundary is detected, push out the current
3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	3704 // argument being built. This one seems like a good candidate for a
3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	3705 // function call.
3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	3706
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3707 int
27777 3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	3708 base_lexer::finish_command_arg (void)
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3709 {
27777 3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	3710 int tok = SQ_STRING;
3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	3711
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	3712 token *tok_val = new token (tok, m_string_text, m_tok_beg, m_tok_end);
27777 3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	3713
3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	3714 m_string_text = "";
3b6920ee4383 eliminate COMMAND_ARG_FINISH macro in lexer John W. Eaton <jwe@octave.org> parents: 27771 diff changeset	3715 m_command_arg_paren_count = 0;
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3716
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3717 return handle_token (tok, tok_val);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3718 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3719
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3720 int
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3721 base_lexer::handle_token (int tok, token *tok_val)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3722 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3723 if (! tok_val)
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	3724 tok_val = new token (tok, m_tok_beg, m_tok_end);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3725
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3726 push_token (tok_val);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3727
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3728 return count_token_internal (tok);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3729 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3730
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3731 int
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3732 base_lexer::count_token (int tok)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3733 {
27778 2f8559459314 store beginning and ending location info for tokens recognized by lexer John W. Eaton <jwe@octave.org> parents: 27777 diff changeset	3734 token *tok_val = new token (tok, m_tok_beg, m_tok_end);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3735
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3736 push_token (tok_val);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3737
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3738 return count_token_internal (tok);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3739 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3740
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3741 int
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3742 base_lexer::count_token_internal (int tok)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3743 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3744 if (tok != '\n')
25443 2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	3745 increment_token_count ();
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3746
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3747 return show_token (tok);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3748 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3749
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3750 int
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3751 base_lexer::show_token (int tok)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3752 {
25443 2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	3753
2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	3754 if (display_tokens ())
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3755 display_token (tok);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3756
25443 2fa7cd178c4a new class for miscellaneous interpreter settings John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	3757 if (debug_flag ())
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3758 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3759 std::cerr << "R: ";
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3760 display_token (tok);
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3761 std::cerr << std::endl;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3762 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3763
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3764 return tok;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3765 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3766
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3767 int
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3768 lexer::fill_flex_buffer (char *buf, unsigned max_size)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3769 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3770 int status = 0;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3771
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3772 if (m_input_buf.empty ())
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3773 {
27527 73be3c628eac refactor input_reader class and its use in lexer John W. Eaton <jwe@octave.org> parents: 27526 diff changeset	3774 input_system& input_sys = m_interpreter.get_input_system ();
73be3c628eac refactor input_reader class and its use in lexer John W. Eaton <jwe@octave.org> parents: 27526 diff changeset	3775
73be3c628eac refactor input_reader class and its use in lexer John W. Eaton <jwe@octave.org> parents: 27526 diff changeset	3776 std::string ps
27528 e51284fc0a51 eliminate promptflag from the lexer and input reader classes John W. Eaton <jwe@octave.org> parents: 27527 diff changeset	3777 = m_initial_input ? input_sys.PS1 () : input_sys.PS2 ();
27527 73be3c628eac refactor input_reader class and its use in lexer John W. Eaton <jwe@octave.org> parents: 27526 diff changeset	3778
73be3c628eac refactor input_reader class and its use in lexer John W. Eaton <jwe@octave.org> parents: 27526 diff changeset	3779 std::string prompt = command_editor::decode_prompt_string (ps);
73be3c628eac refactor input_reader class and its use in lexer John W. Eaton <jwe@octave.org> parents: 27526 diff changeset	3780
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3781 bool eof = false;
27527 73be3c628eac refactor input_reader class and its use in lexer John W. Eaton <jwe@octave.org> parents: 27526 diff changeset	3782 m_current_input_line = m_reader.get_input (prompt, eof);
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3783
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3784 m_input_buf.fill (m_current_input_line, eof);
23730 85f1d31956c0 make echo work for command-line functions John W. Eaton <jwe@octave.org> parents: 23696 diff changeset	3785
85f1d31956c0 make echo work for command-line functions John W. Eaton <jwe@octave.org> parents: 23696 diff changeset	3786 // Attempt to capture text for functions defined on the
85f1d31956c0 make echo work for command-line functions John W. Eaton <jwe@octave.org> parents: 23696 diff changeset	3787 // command line.
85f1d31956c0 make echo work for command-line functions John W. Eaton <jwe@octave.org> parents: 23696 diff changeset	3788 //
85f1d31956c0 make echo work for command-line functions John W. Eaton <jwe@octave.org> parents: 23696 diff changeset	3789 // FIXME: the handling of newline here seems a bit clumsy.
85f1d31956c0 make echo work for command-line functions John W. Eaton <jwe@octave.org> parents: 23696 diff changeset	3790 //
85f1d31956c0 make echo work for command-line functions John W. Eaton <jwe@octave.org> parents: 23696 diff changeset	3791 // See also comments in push_lexer::append_input.
85f1d31956c0 make echo work for command-line functions John W. Eaton <jwe@octave.org> parents: 23696 diff changeset	3792
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3793 if (m_buffer_function_text)
23730 85f1d31956c0 make echo work for command-line functions John W. Eaton <jwe@octave.org> parents: 23696 diff changeset	3794 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3795 if (! m_current_input_line.empty ())
23786 10136bfd46a3 lex.ll: Fix heap-buffer-overflow (bug #51533). Rik <rik@octave.org> parents: 23750 diff changeset	3796 {
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3797 m_function_text += m_current_input_line;
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3798 if (m_current_input_line.back () != '\n')
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3799 m_function_text += '\n';
23786 10136bfd46a3 lex.ll: Fix heap-buffer-overflow (bug #51533). Rik <rik@octave.org> parents: 23750 diff changeset	3800 }
23730 85f1d31956c0 make echo work for command-line functions John W. Eaton <jwe@octave.org> parents: 23696 diff changeset	3801 }
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3802 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3803
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3804 if (! m_input_buf.empty ())
7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3805 status = m_input_buf.copy_chunk (buf, max_size);
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3806 else
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3807 status = YY_NULL;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3808
27528 e51284fc0a51 eliminate promptflag from the lexer and input reader classes John W. Eaton <jwe@octave.org> parents: 27527 diff changeset	3809 m_initial_input = false;
e51284fc0a51 eliminate promptflag from the lexer and input reader classes John W. Eaton <jwe@octave.org> parents: 27527 diff changeset	3810
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3811 return status;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3812 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3813
23730 85f1d31956c0 make echo work for command-line functions John W. Eaton <jwe@octave.org> parents: 23696 diff changeset	3814 void
85f1d31956c0 make echo work for command-line functions John W. Eaton <jwe@octave.org> parents: 23696 diff changeset	3815 push_lexer::append_input (const std::string& input, bool eof)
85f1d31956c0 make echo work for command-line functions John W. Eaton <jwe@octave.org> parents: 23696 diff changeset	3816 {
85f1d31956c0 make echo work for command-line functions John W. Eaton <jwe@octave.org> parents: 23696 diff changeset	3817 // FIXME: input may contain more than one line, so how can we
85f1d31956c0 make echo work for command-line functions John W. Eaton <jwe@octave.org> parents: 23696 diff changeset	3818 // properly start buffering input for command-line functions?
85f1d31956c0 make echo work for command-line functions John W. Eaton <jwe@octave.org> parents: 23696 diff changeset	3819 //
27771 cd566153edd6 split base_lexer::is_keyword_token into two functions John W. Eaton <jwe@octave.org> parents: 27770 diff changeset	3820 // Currently, base_lexer::make_keyword_token starts buffering text
23730 85f1d31956c0 make echo work for command-line functions John W. Eaton <jwe@octave.org> parents: 23696 diff changeset	3821 // for command-line functions by setting the initial value of
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3822 // m_function_text to m_current_input_line when function_kw is
23730 85f1d31956c0 make echo work for command-line functions John W. Eaton <jwe@octave.org> parents: 23696 diff changeset	3823 // recognized. To make that work, we need to do something like
85f1d31956c0 make echo work for command-line functions John W. Eaton <jwe@octave.org> parents: 23696 diff changeset	3824 // maintain a queue of input strings and pass them to the flex
85f1d31956c0 make echo work for command-line functions John W. Eaton <jwe@octave.org> parents: 23696 diff changeset	3825 // buffer one line at a time, while also setting
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3826 // m_current_input_line. Some care will be needed if a single line
23730 85f1d31956c0 make echo work for command-line functions John W. Eaton <jwe@octave.org> parents: 23696 diff changeset	3827 // of input arrives in multiple calls to append_input.
27512 549273db93e4 cache current input line in push lexer John W. Eaton <jwe@octave.org> parents: 27443 diff changeset	3828 //
549273db93e4 cache current input line in push lexer John W. Eaton <jwe@octave.org> parents: 27443 diff changeset	3829 // OR, should we require that the input string to append_input
549273db93e4 cache current input line in push lexer John W. Eaton <jwe@octave.org> parents: 27443 diff changeset	3830 // IS a single line of input? That seems to be what we are doing
549273db93e4 cache current input line in push lexer John W. Eaton <jwe@octave.org> parents: 27443 diff changeset	3831 // here by setting m_current_input_line to input.
23730 85f1d31956c0 make echo work for command-line functions John W. Eaton <jwe@octave.org> parents: 23696 diff changeset	3832
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3833 m_input_buf.fill (input, eof);
27512 549273db93e4 cache current input line in push lexer John W. Eaton <jwe@octave.org> parents: 27443 diff changeset	3834 m_current_input_line = input;
23730 85f1d31956c0 make echo work for command-line functions John W. Eaton <jwe@octave.org> parents: 23696 diff changeset	3835 }
85f1d31956c0 make echo work for command-line functions John W. Eaton <jwe@octave.org> parents: 23696 diff changeset	3836
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3837 int
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3838 push_lexer::fill_flex_buffer (char *buf, unsigned max_size)
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3839 {
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3840 int status = 0;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3841
24833 7c88cf242111 use m_ prefix for data members in more classes John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	3842 if (m_input_buf.empty () && ! m_input_buf.at_eof ())
28112 1db62b2d6c39 in push lexer, don't insert NL with ASCII 1 marker (bug #57859) John W. Eaton <jwe@octave.org> parents: 27975 diff changeset	3843 {
1db62b2d6c39 in push lexer, don't insert NL with ASCII 1 marker (bug #57859) John W. Eaton <jwe@octave.org> parents: 27975 diff changeset	3844 // If the input buffer is empty or we are at the end of the
1db62b2d6c39 in push lexer, don't insert NL with ASCII 1 marker (bug #57859) John W. Eaton <jwe@octave.org> parents: 27975 diff changeset	3845 // buffer, insert ASCII 1 as a marker for subsequent rules.
1db62b2d6c39 in push lexer, don't insert NL with ASCII 1 marker (bug #57859) John W. Eaton <jwe@octave.org> parents: 27975 diff changeset	3846 // Don't insert a newline character in this case. Instead of
1db62b2d6c39 in push lexer, don't insert NL with ASCII 1 marker (bug #57859) John W. Eaton <jwe@octave.org> parents: 27975 diff changeset	3847 // calling input_buffer::fill followed immediately by
1db62b2d6c39 in push lexer, don't insert NL with ASCII 1 marker (bug #57859) John W. Eaton <jwe@octave.org> parents: 27975 diff changeset	3848 // input_buffer::copy_chunk, simply insert the marker directly
1db62b2d6c39 in push lexer, don't insert NL with ASCII 1 marker (bug #57859) John W. Eaton <jwe@octave.org> parents: 27975 diff changeset	3849 // in BUF.
1db62b2d6c39 in push lexer, don't insert NL with ASCII 1 marker (bug #57859) John W. Eaton <jwe@octave.org> parents: 27975 diff changeset	3850
1db62b2d6c39 in push lexer, don't insert NL with ASCII 1 marker (bug #57859) John W. Eaton <jwe@octave.org> parents: 27975 diff changeset	3851 assert (max_size > 0);
1db62b2d6c39 in push lexer, don't insert NL with ASCII 1 marker (bug #57859) John W. Eaton <jwe@octave.org> parents: 27975 diff changeset	3852
1db62b2d6c39 in push lexer, don't insert NL with ASCII 1 marker (bug #57859) John W. Eaton <jwe@octave.org> parents: 27975 diff changeset	3853 buf[0] = static_cast<char> (1);
1db62b2d6c39 in push lexer, don't insert NL with ASCII 1 marker (bug #57859) John W. Eaton <jwe@octave.org> parents: 27975 diff changeset	3854 status = 1;
1db62b2d6c39 in push lexer, don't insert NL with ASCII 1 marker (bug #57859) John W. Eaton <jwe@octave.org> parents: 27975 diff changeset	3855 }
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3856 else
28112 1db62b2d6c39 in push lexer, don't insert NL with ASCII 1 marker (bug #57859) John W. Eaton <jwe@octave.org> parents: 27975 diff changeset	3857 {
1db62b2d6c39 in push lexer, don't insert NL with ASCII 1 marker (bug #57859) John W. Eaton <jwe@octave.org> parents: 27975 diff changeset	3858 // Note that the copy_chunk function may append a newline
1db62b2d6c39 in push lexer, don't insert NL with ASCII 1 marker (bug #57859) John W. Eaton <jwe@octave.org> parents: 27975 diff changeset	3859 // character to the input.
1db62b2d6c39 in push lexer, don't insert NL with ASCII 1 marker (bug #57859) John W. Eaton <jwe@octave.org> parents: 27975 diff changeset	3860
1db62b2d6c39 in push lexer, don't insert NL with ASCII 1 marker (bug #57859) John W. Eaton <jwe@octave.org> parents: 27975 diff changeset	3861 if (! m_input_buf.empty ())
28407 808e3964987b accept multi-line interactive input (bug #58370) John W. Eaton <jwe@octave.org> parents: 28264 diff changeset	3862 status = m_input_buf.copy_chunk (buf, max_size, true);
28112 1db62b2d6c39 in push lexer, don't insert NL with ASCII 1 marker (bug #57859) John W. Eaton <jwe@octave.org> parents: 27975 diff changeset	3863 else
1db62b2d6c39 in push lexer, don't insert NL with ASCII 1 marker (bug #57859) John W. Eaton <jwe@octave.org> parents: 27975 diff changeset	3864 status = YY_NULL;
1db62b2d6c39 in push lexer, don't insert NL with ASCII 1 marker (bug #57859) John W. Eaton <jwe@octave.org> parents: 27975 diff changeset	3865 }
22196 dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3866
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3867 return status;
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator John W. Eaton <jwe@octave.org> parents: 22094 diff changeset	3868 }
16224 4a848eb52de2 use stack for tracking lexer start states John W. Eaton <jwe@octave.org> parents: 16209 diff changeset	3869 }

Mercurial > octave

annotate libinterp/parse-tree/lex.ll @ 28522:a5541f5a78dd