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1
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1 // octave.cc -*- C++ -*- |
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2 /* |
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3 |
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1009
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4 Copyright (C) 1992, 1993, 1994, 1995 John W. Eaton |
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5 |
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6 This file is part of Octave. |
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7 |
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8 Octave is free software; you can redistribute it and/or modify it |
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9 under the terms of the GNU General Public License as published by the |
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10 Free Software Foundation; either version 2, or (at your option) any |
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11 later version. |
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12 |
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13 Octave is distributed in the hope that it will be useful, but WITHOUT |
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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16 for more details. |
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17 |
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18 You should have received a copy of the GNU General Public License |
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19 along with Octave; see the file COPYING. If not, write to the Free |
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20 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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21 |
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22 */ |
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23 |
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24 // Born February 20, 1992. |
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25 |
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240
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26 #ifdef HAVE_CONFIG_H |
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1192
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27 #include <config.h> |
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1
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28 #endif |
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29 |
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1355
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30 #include <cassert> |
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31 #include <csetjmp> |
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32 #include <csignal> |
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33 #include <cstdlib> |
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34 #include <cstring> |
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35 #include <ctime> |
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36 |
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37 #include <fstream.h> |
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38 #include <iostream.h> |
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39 #include <strstream.h> |
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40 |
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41 #ifdef HAVE_UNISTD_H |
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1
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42 #include <sys/types.h> |
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139
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43 #include <unistd.h> |
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44 #endif |
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1355
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45 |
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1
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46 #include <pwd.h> |
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636
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47 |
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139
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48 #include "getopt.h" |
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1
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49 |
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240
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50 #include "lo-error.h" |
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223
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51 |
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1355
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52 #include "builtins.h" |
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53 #include "defaults.h" |
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54 #include "defun.h" |
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703
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55 #include "dynamic-ld.h" |
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1355
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56 #include "error.h" |
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57 #include "file-io.h" |
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58 #include "help.h" |
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1
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59 #include "input.h" |
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60 #include "lex.h" |
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1742
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61 #include "oct-hist.h" |
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1670
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62 #include "toplev.h" |
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1355
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63 #include "pager.h" |
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1
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64 #include "parse.h" |
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1355
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65 #include "pathsearch.h" |
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562
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66 #include "procstream.h" |
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1355
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67 #include "sighandlers.h" |
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68 #include "statdefs.h" |
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69 #include "sysdep.h" |
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1742
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70 #include "pt-const.h" |
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71 #include "pt-misc.h" |
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72 #include "pt-plot.h" |
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1
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73 #include "unwind-prot.h" |
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1355
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74 #include "user-prefs.h" |
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75 #include "utils.h" |
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76 #include "variables.h" |
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1
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77 #include "version.h" |
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78 |
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1704
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79 #if !defined (HAVE_ATEXIT) && defined (HAVE_ON_EXIT) |
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80 extern "C" int on_exit (); |
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81 #define atexit on_exit |
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82 #endif |
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83 |
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1684
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84 // This is from readline's paren.c: |
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85 extern int rl_blink_matching_paren; |
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1516
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86 |
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1
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87 // Top level context (?) |
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88 jmp_buf toplevel; |
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89 |
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90 // Nonzero means we read ~/.octaverc and ./.octaverc. |
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616
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91 // (--norc; --ignore-init-file; -f) |
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1
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92 static int read_init_files = 1; |
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93 |
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1358
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94 // Nonzero means we don't print the usual startup message. |
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616
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95 // (--quiet; --silent; -q) |
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1
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96 static int inhibit_startup_message = 0; |
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97 |
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1410
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98 // Nonzero means we turn on compatibility options. |
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99 // (--traditional) |
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100 static int traditional = 0; |
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101 |
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1
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102 // Usage message |
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139
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103 static const char *usage_string = |
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1613
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104 "octave [-?Vdfhiqvx] [--debug] [--echo-commands] [--exec-path path]\n\ |
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105 [--help] [--ignore-init-file] [--info-file file] [--info-program prog]\n\ |
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106 [--interactive] [-p path] [--path path] [--silent] [--traditional]\n\ |
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107 [--verbose] [--version] [file]"; |
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108 |
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1358
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109 // This is here so that it's more likely that the usage message and |
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1410
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110 // the real set of options will agree. Note: the `+' must come first |
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111 // to prevent getopt from permuting arguments! |
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112 static const char *short_opts = "+?Vdfhip:qvx"; |
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139
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113 |
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1103
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114 // Long options. See the comments in getopt.h for the meanings of the |
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115 // fields in this structure. |
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1613
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116 #define EXEC_PATH_OPTION 1 |
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117 #define INFO_FILE_OPTION 2 |
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118 #define INFO_PROG_OPTION 3 |
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119 #define TRADITIONAL_OPTION 4 |
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139
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120 static struct option long_opts[] = |
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121 { |
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1103
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122 { "debug", no_argument, 0, 'd' }, |
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123 { "echo-commands", no_argument, 0, 'x' }, |
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124 { "exec-path", required_argument, 0, EXEC_PATH_OPTION }, |
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1103
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125 { "help", no_argument, 0, 'h' }, |
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126 { "interactive", no_argument, 0, 'i' }, |
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127 { "info-file", required_argument, 0, INFO_FILE_OPTION }, |
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1613
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128 { "info-program", required_argument, 0, INFO_PROG_OPTION }, |
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129 { "ignore-init-file", no_argument, 0, 'f' }, |
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1103
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130 { "norc", no_argument, 0, 'f' }, |
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131 { "path", required_argument, 0, 'p' }, |
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132 { "quiet", no_argument, 0, 'q' }, |
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133 { "silent", no_argument, 0, 'q' }, |
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134 { "traditional", no_argument, 0, TRADITIONAL_OPTION }, |
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1103
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135 { "verbose", no_argument, 0, 'V' }, |
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136 { "version", no_argument, 0, 'v' }, |
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137 { 0, 0, 0, 0 } |
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139
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138 }; |
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1
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139 |
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1355
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140 // Store the command-line options for later use. |
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141 |
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142 static void |
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143 intern_argv (int argc, char **argv) |
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144 { |
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145 if (argc > 1) |
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146 { |
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1572
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147 int max_len = 0; |
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148 for (int i = 1; i < argc; i++) |
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1572
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149 { |
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150 int tmp_len = strlen (argv[i]); |
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151 if (tmp_len > max_len) |
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152 max_len = tmp_len; |
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153 } |
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154 |
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155 octave_argv.resize (argc-1, max_len, 0); |
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156 |
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157 for (int i = 1; i < argc; i++) |
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158 octave_argv.insert (argv[i], i-1, 0); |
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1411
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159 |
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160 bind_builtin_variable ("argv", octave_argv, 1, 1, 0); |
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1355
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161 } |
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162 } |
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163 |
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581
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164 // Initialize some global variables for later use. |
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165 |
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1
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166 static void |
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167 initialize_globals (char *name) |
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168 { |
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169 raw_prog_name = strsave (name); |
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170 char *tmp = strrchr (raw_prog_name, '/'); |
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171 prog_name = tmp ? strsave (tmp+1) : strsave (raw_prog_name); |
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172 |
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173 kpse_set_progname (name); |
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174 |
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1
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175 struct passwd *entry = getpwuid (getuid ()); |
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176 if (entry) |
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177 user_name = strsave (entry->pw_name); |
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178 else |
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179 user_name = strsave ("I have no name!"); |
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180 endpwent (); |
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181 |
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182 char hostname[256]; |
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183 if (gethostname (hostname, 255) < 0) |
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184 host_name = strsave ("I have no host!"); |
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185 else |
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186 host_name = strsave (hostname); |
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187 |
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188 char *hd = getenv ("HOME"); |
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529
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189 if (hd) |
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190 home_directory = strsave (hd); |
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191 else |
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529
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192 home_directory = strsave ("I have no home!"); |
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193 |
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194 // This may seem odd, but doing it this way means that we don't have |
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195 // to modify the kpathsea library... |
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196 |
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197 char *odb = getenv ("OCTAVE_DB_DIR"); |
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198 |
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199 if (odb) |
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200 oct_putenv ("TEXMF", odb); |
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201 else |
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202 { |
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203 char *oh = getenv ("OCTAVE_HOME"); |
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204 |
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205 if (oh) |
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206 { |
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207 int len = strlen (oh) + 12; |
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208 char *putenv_val = new char [len]; |
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209 sprintf (putenv_val, "%s/lib/octave", oh); |
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210 oct_putenv ("TEXMF", putenv_val); |
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211 } |
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212 else |
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213 oct_putenv ("TEXMF", OCTAVE_DATADIR "/octave"); |
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1153
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214 } |
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215 |
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216 exec_path = default_exec_path (); |
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217 |
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218 load_path = default_path (); |
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186
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219 |
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220 info_file = default_info_file (); |
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195
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221 |
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222 info_prog = default_info_prog (); |
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223 |
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195
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224 editor = default_editor (); |
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225 } |
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226 |
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581
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227 // Initialize by reading startup files. |
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228 |
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229 static void |
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230 execute_startup_files (void) |
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231 { |
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315
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232 begin_unwind_frame ("execute_startup_files"); |
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233 |
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234 // XXX FIXME XXX -- need to make it possible to set this in startup |
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235 // files. |
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236 |
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237 unwind_protect_int (input_from_startup_file); |
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238 unwind_protect_int (user_pref.echo_executing_commands); |
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239 |
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240 input_from_startup_file = 1; |
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241 user_pref.echo_executing_commands = ECHO_OFF; |
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315
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242 |
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793
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243 int verbose = (verbose_flag && ! inhibit_startup_message); |
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578
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244 |
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1477
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245 // Execute commands from the site-wide configuration file. First |
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246 // from the file $(prefix)/lib/octave/site/m/octaverc (if it exists), |
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247 // then from the file $(prefix)/lib/octave/$(version)/m/octaverc (if |
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248 // it exists). |
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249 |
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250 char *lsd = get_local_site_defaults (); |
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251 parse_and_execute (lsd, 0, verbose); |
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1
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252 |
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253 char *sd = get_site_defaults (); |
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578
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254 parse_and_execute (sd, 0, verbose); |
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1
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255 |
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1358
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256 // Try to execute commands from $HOME/.octaverc and ./.octaverc. |
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1
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257 |
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529
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258 char *home_rc = 0; |
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259 if (home_directory) |
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1
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260 { |
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85
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261 home_rc = strconcat (home_directory, "/.octaverc"); |
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578
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262 parse_and_execute (home_rc, 0, verbose); |
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1
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263 } |
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264 |
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1358
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265 // Names alone are not enough. |
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85
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266 |
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267 struct stat home_rc_statbuf; |
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268 stat (home_rc, &home_rc_statbuf); |
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269 delete [] home_rc; |
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270 |
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271 struct stat dot_rc_statbuf; |
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272 stat ("./.octaverc", &dot_rc_statbuf); |
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273 |
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274 if (home_rc_statbuf.st_ino != dot_rc_statbuf.st_ino) |
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578
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275 parse_and_execute ("./.octaverc", 0, verbose); |
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315
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276 |
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277 run_unwind_frame ("execute_startup_files"); |
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1
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278 } |
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279 |
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581
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280 // Usage message with extra help. |
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281 |
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1
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282 static void |
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283 verbose_usage (void) |
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284 { |
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1613
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285 cout << "\n" OCTAVE_NAME_VERSION_AND_COPYRIGHT "\n\ |
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286 \n\ |
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287 Usage: octave [options]\n\ |
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288 \n\ |
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289 Options:\n\ |
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1119
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290 \n\ |
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1613
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291 -d, --debug Enter parser debugging mode.\n\ |
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292 -x, --echo-commands Echo commands as they are executed.\n\ |
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293 --exec-path PATH Set path for executing subprograms.\n\ |
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294 -h, -?, --help Print short help message and exit.\n\ |
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295 -f, --ignore-init-file Don't read any initialization files.\n\ |
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296 --info-file FILE Use top-level info file FILE.\n\ |
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297 --info-program PROGRAM Use PROGRAM for reading info files.\n\ |
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298 -i, --interactive Force interactive behavior.\n\ |
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299 -p PATH, --path PATH Set initial LOADPATH to PATH.\n\ |
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300 -q, --silent Don't print message at startup.\n\ |
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301 --traditional Set compatibility variables.\n\ |
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302 -V, --verbose Enable verbose output in some cases.\n\ |
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303 -v, --version Print version number and exit.\n\ |
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1119
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304 \n\ |
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1613
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305 FILE Execute commands from FILE.\n\ |
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1119
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306 \n"; |
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285
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307 |
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613
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308 exit (0); |
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1
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309 } |
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310 |
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581
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311 // Terse usage messsage. |
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312 |
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1
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313 static void |
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314 usage (void) |
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315 { |
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613
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316 cerr << "usage: " << usage_string << "\n"; |
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1
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317 exit (1); |
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318 } |
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319 |
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320 static void |
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321 print_version_and_exit (void) |
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322 { |
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1107
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323 cout << OCTAVE_NAME_AND_VERSION << "\n"; |
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1
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324 exit (0); |
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325 } |
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326 |
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721
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327 static void |
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328 initialize_error_handlers () |
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329 { |
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330 set_liboctave_error_handler (error); |
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331 } |
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332 |
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1410
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333 // What happens on --traditional. |
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334 |
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335 static void |
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336 maximum_braindamage (void) |
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337 { |
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338 bind_builtin_variable ("PS1", ">> "); |
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339 bind_builtin_variable ("PS2", ""); |
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1423
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340 bind_builtin_variable ("beep_on_error", "true"); |
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1410
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341 bind_builtin_variable ("default_save_format", "mat-binary"); |
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342 bind_builtin_variable ("define_all_return_values", "true"); |
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343 bind_builtin_variable ("do_fortran_indexing", "true"); |
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344 bind_builtin_variable ("empty_list_elements_ok", "true"); |
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345 bind_builtin_variable ("implicit_str_to_num_ok", "true"); |
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346 bind_builtin_variable ("ok_to_lose_imaginary_part", "true"); |
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347 bind_builtin_variable ("page_screen_output", "false"); |
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348 bind_builtin_variable ("prefer_column_vectors", "false"); |
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349 bind_builtin_variable ("prefer_zero_one_indexing", "true"); |
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350 bind_builtin_variable ("print_empty_dimensions", "false"); |
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351 bind_builtin_variable ("treat_neg_dim_as_zero", "true"); |
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352 bind_builtin_variable ("warn_function_name_clash", "false"); |
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353 bind_builtin_variable ("whitespace_in_literal_matrix", "traditional"); |
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354 } |
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355 |
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581
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356 // You guessed it. |
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357 |
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1
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358 int |
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359 main (int argc, char **argv) |
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360 { |
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1588
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361 int echo_commands = ECHO_OFF; |
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362 |
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1358
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363 // The order of these calls is important, and initialize_globals |
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364 // must come before the options are processed because some command |
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365 // line options override defaults. |
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721
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366 |
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367 init_user_prefs (); |
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368 |
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369 initialize_pager (); |
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370 |
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1
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371 sysdep_init (); |
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372 |
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721
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373 initialize_error_handlers (); |
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223
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374 |
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1
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375 initialize_globals (argv[0]); |
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376 |
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139
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377 int optc; |
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378 while ((optc = getopt_long (argc, argv, short_opts, long_opts, 0)) != EOF) |
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1
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379 { |
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139
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380 switch (optc) |
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1
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381 { |
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793
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382 case 'V': |
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383 verbose_flag++; |
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384 break; |
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385 |
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1
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386 case 'd': |
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387 yydebug++; |
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388 break; |
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777
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389 |
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1
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390 case 'f': |
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391 read_init_files = 0; |
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392 break; |
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777
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393 |
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1
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394 case 'h': |
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395 case '?': |
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396 verbose_usage (); |
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397 break; |
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777
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398 |
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1
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399 case 'i': |
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400 forced_interactive = 1; |
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401 break; |
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777
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402 |
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1
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403 case 'p': |
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529
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404 if (optarg) |
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139
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405 load_path = strsave (optarg); |
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1
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406 break; |
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777
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407 |
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1
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408 case 'q': |
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409 inhibit_startup_message = 1; |
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410 break; |
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777
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411 |
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1
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412 case 'x': |
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1588
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413 echo_commands = (ECHO_SCRIPTS | ECHO_FUNCTIONS | ECHO_CMD_LINE); |
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1
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414 break; |
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777
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415 |
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1
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416 case 'v': |
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417 print_version_and_exit (); |
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418 break; |
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777
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419 |
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1613
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420 case EXEC_PATH_OPTION: |
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421 if (optarg) |
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422 exec_path = strsave (optarg); |
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423 break; |
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424 |
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186
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425 case INFO_FILE_OPTION: |
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529
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426 if (optarg) |
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186
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427 info_file = strsave (optarg); |
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428 break; |
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777
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429 |
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1613
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430 case INFO_PROG_OPTION: |
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431 if (optarg) |
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432 info_prog = strsave (optarg); |
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433 break; |
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434 |
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1410
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435 case TRADITIONAL_OPTION: |
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436 traditional = 1; |
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437 break; |
|
|
438 |
|
1
|
439 default: |
|
|
440 usage (); |
|
|
441 break; |
|
|
442 } |
|
|
443 } |
|
|
444 |
|
1651
|
445 #if defined (HAVE_ATEXIT) || defined (HAVE_ON_EXIT) |
|
1358
|
446 // Make sure we clean up when we exit. If we don't have atexit or |
|
|
447 // on_exit, we're going to leave some junk files around if we exit |
|
|
448 // abnormally. |
|
1
|
449 atexit (cleanup_tmp_files); |
|
318
|
450 #endif |
|
1
|
451 |
|
1358
|
452 // These can come after command line args since none of them set any |
|
|
453 // defaults that might be changed by command line options. |
|
581
|
454 |
|
636
|
455 install_signal_handlers (); |
|
|
456 |
|
1
|
457 initialize_file_io (); |
|
|
458 |
|
581
|
459 initialize_symbol_tables (); |
|
1
|
460 |
|
|
461 install_builtins (); |
|
|
462 |
|
315
|
463 initialize_readline (); |
|
|
464 |
|
721
|
465 init_dynamic_linker (); |
|
|
466 |
|
578
|
467 if (! inhibit_startup_message) |
|
1106
|
468 cout << OCTAVE_STARTUP_MESSAGE "\n" << endl; |
|
578
|
469 |
|
1410
|
470 if (traditional) |
|
|
471 maximum_braindamage (); |
|
|
472 |
|
1588
|
473 bind_builtin_variable ("echo_executing_commands", |
|
|
474 (double) echo_commands); |
|
|
475 |
|
1
|
476 if (read_init_files) |
|
1651
|
477 execute_startup_files (); |
|
|
478 |
|
|
479 initialize_history (); |
|
1
|
480 |
|
578
|
481 if (! inhibit_startup_message && reading_startup_message_printed) |
|
|
482 cout << endl; |
|
|
483 |
|
1358
|
484 // Avoid counting commands executed from startup files. |
|
|
485 |
|
1
|
486 current_command_number = 1; |
|
|
487 |
|
1358
|
488 // If there is an extra argument, see if it names a file to read. |
|
|
489 // Additional arguments are taken as command line options for the |
|
|
490 // script. |
|
1
|
491 |
|
149
|
492 int remaining_args = argc - optind; |
|
1355
|
493 if (remaining_args > 0) |
|
149
|
494 { |
|
984
|
495 reading_script_file = 1; |
|
|
496 curr_fcn_file_name = argv[optind]; |
|
1608
|
497 curr_fcn_file_full_name = curr_fcn_file_name; |
|
1411
|
498 |
|
984
|
499 FILE *infile = get_input_from_file (curr_fcn_file_name); |
|
1411
|
500 |
|
529
|
501 if (infile) |
|
287
|
502 { |
|
1516
|
503 input_from_command_line_file = 1; |
|
|
504 |
|
1411
|
505 bind_builtin_variable ("program_invocation_name", |
|
|
506 curr_fcn_file_name); |
|
|
507 |
|
1608
|
508 const char *tmp = strrchr (curr_fcn_file_name, '/'); |
|
1411
|
509 tmp = tmp ? tmp+1 : curr_fcn_file_name; |
|
|
510 |
|
|
511 bind_builtin_variable ("program_name", tmp); |
|
|
512 |
|
|
513 intern_argv (remaining_args, argv+optind); |
|
|
514 |
|
287
|
515 rl_blink_matching_paren = 0; |
|
|
516 switch_to_buffer (create_buffer (infile)); |
|
|
517 } |
|
529
|
518 else |
|
|
519 clean_up_and_exit (1); |
|
1
|
520 } |
|
|
521 else |
|
|
522 { |
|
1355
|
523 // Is input coming from a terminal? If so, we are probably |
|
|
524 // interactive. |
|
1
|
525 |
|
|
526 interactive = (isatty (fileno (stdin)) && isatty (fileno (stdout))); |
|
1355
|
527 |
|
|
528 intern_argv (argc, argv); |
|
|
529 |
|
|
530 switch_to_buffer (create_buffer (get_input_from_stdin ())); |
|
1
|
531 } |
|
|
532 |
|
1358
|
533 // Force input to be echoed if not really interactive, but the user |
|
|
534 // has forced interactive behavior. |
|
1
|
535 |
|
|
536 if (!interactive && forced_interactive) |
|
287
|
537 { |
|
|
538 rl_blink_matching_paren = 0; |
|
1588
|
539 |
|
|
540 // XXX FIXME XXX -- is this the right thing to do? |
|
|
541 |
|
|
542 bind_builtin_variable ("echo_executing_commands", |
|
|
543 (double) ECHO_CMD_LINE); |
|
287
|
544 } |
|
1
|
545 |
|
1410
|
546 if (! interactive) |
|
1
|
547 using_readline = 0; |
|
|
548 |
|
1358
|
549 // Allow the user to interrupt us without exiting. |
|
1
|
550 |
|
|
551 if (setjmp (toplevel) != 0) |
|
|
552 { |
|
|
553 raw_mode (0); |
|
176
|
554 |
|
1
|
555 cout << "\n"; |
|
|
556 } |
|
|
557 |
|
|
558 can_interrupt = 1; |
|
|
559 |
|
1651
|
560 catch_interrupts (); |
|
1
|
561 |
|
1358
|
562 // The big loop. |
|
1
|
563 |
|
|
564 int retval; |
|
|
565 do |
|
|
566 { |
|
287
|
567 curr_sym_tab = top_level_sym_tab; |
|
|
568 |
|
1
|
569 reset_parser (); |
|
287
|
570 |
|
1
|
571 retval = yyparse (); |
|
287
|
572 |
|
529
|
573 if (retval == 0 && global_command) |
|
1
|
574 { |
|
|
575 global_command->eval (1); |
|
|
576 delete global_command; |
|
|
577 current_command_number++; |
|
|
578 } |
|
|
579 } |
|
|
580 while (retval == 0); |
|
|
581 |
|
1005
|
582 if (retval == 1 && ! error_state) |
|
|
583 retval = 0; |
|
|
584 |
|
1
|
585 clean_up_and_exit (retval); |
|
|
586 } |
|
|
587 |
|
560
|
588 /* |
|
1
|
589 ;;; Local Variables: *** |
|
|
590 ;;; mode: C++ *** |
|
|
591 ;;; page-delimiter: "^/\\*" *** |
|
|
592 ;;; End: *** |
|
|
593 */ |
