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1 /* |
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2 |
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2847
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3 Copyright (C) 1996, 1997 John W. Eaton |
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1683
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #ifdef HAVE_CONFIG_H |
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24 #include <config.h> |
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25 #endif |
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26 |
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27 #include <cassert> |
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28 #include <cstdlib> |
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29 #include <cstring> |
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4221
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30 #include <new> |
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31 |
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3503
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32 #include <fstream> |
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33 #include <iostream> |
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1728
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34 #include <string> |
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35 |
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36 #ifdef HAVE_UNISTD_H |
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2442
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37 #ifdef HAVE_SYS_TYPES_H |
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38 #include <sys/types.h> |
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2442
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39 #endif |
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40 #include <unistd.h> |
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41 #endif |
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42 |
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2926
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43 #include "cmd-edit.h" |
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44 #include "file-ops.h" |
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1683
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45 #include "lo-error.h" |
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2370
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46 #include "lo-mappers.h" |
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4051
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47 #include "lo-sstream.h" |
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3020
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48 #include "oct-env.h" |
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4153
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49 #include "quit.h" |
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1755
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50 #include "str-vec.h" |
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51 |
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2492
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52 #include <defaults.h> |
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53 #include "defun.h" |
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54 #include "error.h" |
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55 #include "file-io.h" |
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56 #include "input.h" |
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57 #include "lex.h" |
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2492
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58 #include <oct-conf.h> |
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1742
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59 #include "oct-hist.h" |
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2162
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60 #include "oct-map.h" |
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2862
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61 #include "oct-obj.h" |
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1683
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62 #include "pager.h" |
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63 #include "parse.h" |
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64 #include "pathsearch.h" |
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65 #include "procstream.h" |
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2370
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66 #include "ov.h" |
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2985
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67 #include "pt-jump.h" |
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1750
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68 #include "pt-plot.h" |
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2982
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69 #include "pt-stmt.h" |
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70 #include "sighandlers.h" |
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71 #include "sysdep.h" |
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2693
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72 #include "syswait.h" |
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1750
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73 #include "toplev.h" |
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74 #include "unwind-prot.h" |
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75 #include "utils.h" |
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76 #include "variables.h" |
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2492
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77 #include <version.h> |
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78 |
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79 // TRUE means we are exiting via the builtin exit or quit functions. |
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80 static bool quitting_gracefully = false; |
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81 |
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4217
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82 // TRUE means we are ready to interpret commands, but not everything |
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83 // is ready for interactive use. |
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84 bool octave_interpreter_ready = false; |
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85 |
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4172
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86 // TRUE means we've processed all the init code and we are good to go. |
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87 bool octave_initialized = false; |
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88 |
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89 // Current command to execute. |
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90 tree_statement_list *global_command = 0; |
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91 |
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92 // Pointer to function that is currently being evaluated. |
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93 octave_user_function *curr_function = 0; |
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94 |
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95 // Pointer to parent function that is currently being evaluated. |
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96 octave_user_function *curr_parent_function = 0; |
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97 |
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3834
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98 // Original value of TEXMFDBS environment variable. |
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99 std::string octave_original_texmfdbs; |
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100 |
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4180
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101 static void |
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102 recover_from_exception (void) |
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103 { |
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104 unwind_protect::run_all (); |
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105 can_interrupt = true; |
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106 octave_interrupt_immediately = 0; |
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4180
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107 octave_interrupt_state = 0; |
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108 octave_allocation_error = 0; |
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109 octave_restore_signal_mask (); |
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110 octave_catch_interrupts (); |
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111 } |
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112 |
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113 int |
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114 main_loop (const std::string& fun_to_call) |
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1907
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115 { |
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116 octave_save_signal_mask (); |
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117 |
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4153
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118 if (octave_set_current_context) |
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1907
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119 { |
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120 #if defined (USE_EXCEPTIONS_FOR_INTERRUPTS) |
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121 panic_impossible (); |
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122 #else |
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123 unwind_protect::run_all (); |
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124 raw_mode (0); |
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125 std::cout << "\n"; |
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126 octave_restore_signal_mask (); |
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127 #endif |
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1907
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128 } |
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129 |
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130 can_interrupt = true; |
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1907
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131 |
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132 octave_catch_interrupts (); |
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133 |
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4172
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134 octave_initialized = true; |
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135 |
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4356
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136 if (! fun_to_call.empty ()) |
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137 feval (fun_to_call); |
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138 |
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1907
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139 // The big loop. |
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140 |
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141 int retval = 0; |
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1907
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142 do |
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143 { |
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4180
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144 try |
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1907
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145 { |
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146 curr_sym_tab = top_level_sym_tab; |
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147 |
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4318
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148 reset_error_handler (); |
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149 |
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150 reset_parser (); |
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2620
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151 |
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152 retval = yyparse (); |
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153 |
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154 if (retval == 0) |
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155 { |
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156 if (global_command) |
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157 { |
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158 global_command->eval (); |
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159 |
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160 delete global_command; |
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161 |
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162 global_command = 0; |
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163 |
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164 OCTAVE_QUIT; |
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165 |
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166 if (! (interactive || forced_interactive)) |
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167 { |
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4207
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168 bool quit = (tree_return_command::returning |
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169 || tree_break_command::breaking); |
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170 |
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4207
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171 if (tree_return_command::returning) |
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172 tree_return_command::returning = 0; |
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173 |
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4207
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174 if (tree_break_command::breaking) |
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175 tree_break_command::breaking--; |
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176 |
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177 if (quit) |
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178 break; |
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179 } |
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180 |
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181 if (error_state) |
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182 { |
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183 if (! (interactive || forced_interactive)) |
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184 { |
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185 // We should exit with a non-zero status. |
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186 retval = 1; |
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187 break; |
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188 } |
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189 } |
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190 else |
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191 { |
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192 if (octave_completion_matches_called) |
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193 octave_completion_matches_called = false; |
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194 else |
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195 command_editor::increment_current_command_number (); |
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196 } |
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197 } |
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198 else if (parser_end_of_input) |
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199 break; |
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200 } |
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201 } |
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4182
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202 catch (octave_interrupt_exception) |
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203 { |
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4180
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204 recover_from_exception (); |
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205 std::cout << "\n"; |
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206 } |
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4181
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207 catch (std::bad_alloc) |
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208 { |
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209 recover_from_exception (); |
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210 std::cerr |
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211 << "error: memory exhausted -- trying to return to prompt\n"; |
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1907
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212 } |
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213 } |
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214 while (retval == 0); |
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215 |
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216 return retval; |
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217 } |
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218 |
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219 // Fix up things before exiting. |
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220 |
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221 void |
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3162
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222 clean_up_and_exit (int retval) |
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223 { |
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3216
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224 do_octave_atexit (); |
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225 |
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3162
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226 exit (retval == EOF ? 0 : retval); |
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227 } |
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228 |
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4208
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229 DEFCMD (casesen, args, , |
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230 "-*- texinfo -*-\n\ |
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231 @deffn {Command} casesen arg\n\ |
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232 Provided for compatibility with Matlab, but does nothing.\n\ |
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233 @end deffn") |
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234 { |
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235 octave_value_list retval; |
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236 |
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237 int argc = args.length () + 1; |
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238 |
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1965
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239 string_vector argv = args.make_argv ("casesen"); |
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240 |
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1755
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241 if (error_state) |
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242 return retval; |
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243 |
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244 if (argc == 1 || (argc > 1 && argv[1] == "off")) |
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245 warning ("casesen: sorry, Octave is always case sensitive"); |
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246 else if (argc > 1 && argv[1] == "on") |
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247 ; // ok. |
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248 else |
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249 print_usage ("casesen"); |
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250 |
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251 return retval; |
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252 } |
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253 |
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1957
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254 DEFUN (computer, args, nargout, |
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255 "-*- texinfo -*-\n\ |
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256 @deftypefn {Built-in Function} {} computer ()\n\ |
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257 Print or return a string of the form @var{cpu}-@var{vendor}-@var{os}\n\ |
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258 that identifies the kind of computer Octave is running on. If invoked\n\ |
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259 with an output argument, the value is returned instead of printed. For\n\ |
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260 example,\n\ |
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261 \n\ |
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3301
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262 @example\n\ |
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263 @group\n\ |
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264 computer ()\n\ |
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265 @print{} i586-pc-linux-gnu\n\ |
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266 \n\ |
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267 x = computer ()\n\ |
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268 @result{} x = \"i586-pc-linux-gnu\"\n\ |
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269 @end group\n\ |
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270 @end example\n\ |
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271 @end deftypefn") |
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272 { |
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4233
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273 octave_value retval; |
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274 |
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275 int nargin = args.length (); |
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276 |
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277 if (nargin != 0) |
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278 warning ("computer: ignoring extra arguments"); |
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279 |
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3523
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280 std::string msg; |
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281 |
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3584
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282 if (strcmp (OCTAVE_CANONICAL_HOST_TYPE, "unknown") == 0) |
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283 msg = "Hi Dave, I'm a HAL-9000"; |
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284 else |
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285 msg = OCTAVE_CANONICAL_HOST_TYPE; |
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286 |
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287 if (nargout == 0) |
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288 octave_stdout << msg << "\n"; |
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289 else |
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290 retval = msg; |
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291 |
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292 return retval; |
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293 } |
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294 |
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3180
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295 DEFUN (quit, args, nargout, |
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3332
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296 "-*- texinfo -*-\n\ |
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297 @deftypefn {Built-in Function} {} exit (@var{status})\n\ |
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298 @deftypefnx {Built-in Function} {} quit (@var{status})\n\ |
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299 Exit the current Octave session. If the optional integer value\n\ |
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300 @var{status} is supplied, pass that value to the operating system as the\n\ |
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301 Octave's exit status.\n\ |
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3333
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302 @end deftypefn") |
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1683
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303 { |
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2086
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304 octave_value_list retval; |
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2068
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305 |
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3180
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306 if (nargout == 0) |
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2068
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307 { |
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3180
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308 int exit_status = 0; |
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309 |
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310 quitting_gracefully = true; |
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311 |
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3180
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312 if (args.length () > 0) |
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313 { |
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3202
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314 int tmp = args(0).nint_value (); |
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315 |
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3202
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316 if (! error_state) |
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317 exit_status = tmp; |
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3180
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318 } |
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319 |
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320 clean_up_and_exit (exit_status); |
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2068
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321 } |
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3180
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322 else |
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323 error ("quit: invalid number of output arguments"); |
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2068
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324 |
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325 return retval; |
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326 } |
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327 |
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328 DEFALIAS (exit, quit); |
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329 |
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1957
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330 DEFUN (warranty, , , |
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3446
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331 "-*- texinfo -*-\n\ |
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332 @deftypefn {Built-in Function} {} warranty ()\n\ |
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333 Describe the conditions for copying and distributing Octave.\n\ |
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334 @end deftypefn") |
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1683
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335 { |
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2086
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336 octave_value_list retval; |
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337 |
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3922
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338 octave_stdout << "\n" \ |
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339 OCTAVE_NAME_VERSION_AND_COPYRIGHT "\n\ |
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340 \n\ |
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1683
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341 This program is free software; you can redistribute it and/or modify\n\ |
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342 it under the terms of the GNU General Public License as published by\n\ |
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343 the Free Software Foundation; either version 2 of the License, or\n\ |
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344 (at your option) any later version.\n\ |
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345 \n\ |
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346 This program is distributed in the hope that it will be useful,\n\ |
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347 but WITHOUT ANY WARRANTY; without even the implied warranty of\n\ |
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348 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n\ |
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349 GNU General Public License for more details.\n\ |
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350 \n\ |
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351 You should have received a copy of the GNU General Public License\n\ |
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352 along with this program. If not, write to the Free Software\n\ |
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353 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.\n\ |
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354 \n"; |
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355 |
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356 return retval; |
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357 } |
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358 |
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359 // Execute a shell command. |
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360 |
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1965
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361 static void |
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362 cleanup_iprocstream (void *p) |
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363 { |
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3060
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364 iprocstream *cmd = static_cast<iprocstream *> (p); |
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365 |
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366 octave_child_list::remove (cmd->pid ()); |
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367 |
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368 delete cmd; |
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1965
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369 } |
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370 |
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2086
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371 static octave_value_list |
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3523
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372 run_command_and_return_output (const std::string& cmd_str) |
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2083
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373 { |
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2086
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374 octave_value_list retval; |
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2083
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375 |
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376 iprocstream *cmd = new iprocstream (cmd_str.c_str ()); |
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377 |
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3060
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378 if (cmd) |
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2083
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379 { |
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3060
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380 unwind_protect::add (cleanup_iprocstream, cmd); |
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381 |
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382 if (*cmd) |
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383 { |
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4051
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384 OSSTREAM output_buf; |
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2095
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385 |
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3147
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386 // XXX FIXME XXX -- sometimes, the subprocess hasn't written |
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387 // anything before we try to read from the procstream. The |
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388 // kluge below (simply waiting and trying again) is ugly, |
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389 // but it seems to work, at least most of the time. It |
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390 // could probably still fail if the subprocess hasn't |
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391 // started writing after the snooze. Isn't there a better |
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392 // way? If there is, you should also fix the code for the |
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393 // ls function in dirfns.cc. |
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394 |
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3060
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395 char ch; |
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3147
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396 |
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397 if (cmd->get (ch)) |
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398 output_buf.put (ch); |
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399 else |
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400 { |
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401 cmd->clear (); |
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402 |
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3308
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403 octave_usleep (100); |
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3147
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404 } |
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405 |
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3060
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406 while (cmd->get (ch)) |
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407 output_buf.put (ch); |
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2083
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408 |
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3252
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409 int cmd_status = cmd->close (); |
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2083
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410 |
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3060
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411 if (WIFEXITED (cmd_status)) |
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412 cmd_status = WEXITSTATUS (cmd_status); |
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413 else |
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414 cmd_status = 127; |
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2083
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415 |
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4051
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416 output_buf << OSSTREAM_ENDS; |
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2083
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417 |
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3060
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418 retval(1) = (double) cmd_status; |
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4051
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419 retval(0) = OSSTREAM_STR (output_buf); |
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2083
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420 |
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4051
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421 OSSTREAM_FREEZE (output_buf); |
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3060
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422 } |
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423 |
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424 unwind_protect::run (); |
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2083
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425 } |
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426 else |
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427 error ("unable to start subprocess for `%s'", cmd_str.c_str ()); |
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428 |
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429 return retval; |
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430 } |
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431 |
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3834
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432 static void |
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433 restore_texmfdbs_envvar (void *ptr) |
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434 { |
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435 std::string *s = static_cast<std::string *> (ptr); |
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436 |
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437 octave_env::putenv ("TEXMFDBS", *s); |
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438 } |
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439 |
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1957
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440 DEFUN (system, args, nargout, |
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3301
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441 "-*- texinfo -*-\n\ |
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442 @deftypefn {Built-in Function} {} system (@var{string}, @var{return_output}, @var{type})\n\ |
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443 Execute a shell command specified by @var{string}. The second\n\ |
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444 argument is optional. If @var{type} is @code{\"async\"}, the process\n\ |
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445 is started in the background and the process id of the child process\n\ |
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446 is returned immediately. Otherwise, the process is started, and\n\ |
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447 Octave waits until it exits. If @var{type} argument is omitted, a\n\ |
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448 value of @code{\"sync\"} is assumed.\n\ |
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2083
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449 \n\ |
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3301
|
450 If two input arguments are given (the actual value of\n\ |
|
|
451 @var{return_output} is irrelevant) and the subprocess is started\n\ |
|
|
452 synchronously, or if @var{system} is called with one input argument and\n\ |
|
|
453 one or more output arguments, the output from the command is returned.\n\ |
|
2083
|
454 Otherwise, if the subprocess is executed synchronously, it's output is\n\ |
|
2321
|
455 sent to the standard output. To send the output of a command executed\n\ |
|
3301
|
456 with @var{system} through the pager, use a command like\n\ |
|
2321
|
457 \n\ |
|
3301
|
458 @example\n\ |
|
|
459 disp (system (cmd, 1));\n\ |
|
|
460 @end example\n\ |
|
2321
|
461 \n\ |
|
3301
|
462 @noindent\n\ |
|
2321
|
463 or\n\ |
|
|
464 \n\ |
|
3301
|
465 @example\n\ |
|
|
466 printf (\"%s\n\", system (cmd, 1));\n\ |
|
|
467 @end example\n\ |
|
|
468 \n\ |
|
|
469 The @code{system} function can return two values. The first is any\n\ |
|
|
470 output from the command that was written to the standard output stream,\n\ |
|
|
471 and the second is the output status of the command. For example,\n\ |
|
|
472 \n\ |
|
|
473 @example\n\ |
|
|
474 [output, status] = system (\"echo foo; exit 2\");\n\ |
|
|
475 @end example\n\ |
|
|
476 \n\ |
|
|
477 @noindent\n\ |
|
|
478 will set the variable @code{output} to the string @samp{foo}, and the\n\ |
|
|
479 variable @code{status} to the integer @samp{2}.\n\ |
|
|
480 @end deftypefn") |
|
1683
|
481 { |
|
2086
|
482 octave_value_list retval; |
|
1683
|
483 |
|
3834
|
484 unwind_protect::begin_frame ("Fsystem"); |
|
|
485 |
|
1683
|
486 int nargin = args.length (); |
|
|
487 |
|
2083
|
488 if (nargin > 0 && nargin < 4) |
|
1683
|
489 { |
|
2083
|
490 bool return_output = (nargout > 0 || nargin > 1); |
|
|
491 |
|
3523
|
492 std::string cmd_str = args(0).string_value (); |
|
2083
|
493 |
|
|
494 enum exec_type { sync, async }; |
|
|
495 |
|
|
496 exec_type type = sync; |
|
|
497 |
|
|
498 if (! error_state) |
|
|
499 { |
|
|
500 if (nargin > 2) |
|
|
501 { |
|
3523
|
502 std::string type_str = args(2).string_value (); |
|
1683
|
503 |
|
2083
|
504 if (! error_state) |
|
|
505 { |
|
|
506 if (type_str == "sync") |
|
|
507 type = sync; |
|
|
508 else if (type_str == "async") |
|
|
509 type = async; |
|
|
510 else |
|
|
511 error ("system: third arg must be \"sync\" or \"async\""); |
|
|
512 } |
|
|
513 else |
|
|
514 error ("system: third argument must be a string"); |
|
|
515 } |
|
|
516 } |
|
|
517 else |
|
3523
|
518 error ("system: expecting std::string as first argument"); |
|
1683
|
519 |
|
2083
|
520 if (! error_state) |
|
|
521 { |
|
3834
|
522 // The value of TEXMFDBS that Octave puts in the environment |
|
|
523 // will cause trouble if we are asked to run TeX, so we |
|
|
524 // should reset it to whatever it was before Octave started. |
|
|
525 // |
|
|
526 // XXX FIXME XXX -- it would be better to fix the |
|
|
527 // kpathsearch library to not always do TeX-specific |
|
|
528 // things... |
|
|
529 |
|
3841
|
530 static std::string odb; |
|
3834
|
531 |
|
|
532 odb = octave_env::getenv ("TEXMFDBS"); |
|
|
533 |
|
|
534 unwind_protect::add (restore_texmfdbs_envvar, &odb); |
|
|
535 |
|
|
536 octave_env::putenv ("TEXMFDBS", octave_original_texmfdbs); |
|
|
537 |
|
2083
|
538 if (type == async) |
|
|
539 { |
|
4086
|
540 #ifdef HAVE_FORK |
|
2083
|
541 pid_t pid = fork (); |
|
|
542 |
|
|
543 if (pid < 0) |
|
|
544 error ("system: fork failed -- can't create child process"); |
|
|
545 else if (pid == 0) |
|
|
546 { |
|
3273
|
547 // XXX FIXME XXX -- should probably replace this |
|
|
548 // call with something portable. |
|
|
549 |
|
|
550 execl ("/bin/sh", "sh", "-c", cmd_str.c_str (), 0); |
|
|
551 |
|
|
552 panic_impossible (); |
|
2083
|
553 } |
|
|
554 else |
|
4254
|
555 retval(0) = pid; |
|
4086
|
556 #else |
|
|
557 error ("asynchronous system calls are not supported"); |
|
|
558 #endif |
|
2083
|
559 } |
|
2321
|
560 else if (return_output) |
|
|
561 retval = run_command_and_return_output (cmd_str); |
|
2083
|
562 else |
|
2321
|
563 { |
|
|
564 int status = system (cmd_str.c_str ()); |
|
|
565 |
|
|
566 // The value in status is as returned by waitpid. If |
|
|
567 // the process exited normally, extract the actual exit |
|
|
568 // status of the command. Otherwise, return 127 as a |
|
|
569 // failure code. |
|
|
570 |
|
2693
|
571 if (WIFEXITED (status)) |
|
|
572 status = WEXITSTATUS (status); |
|
2321
|
573 |
|
4233
|
574 retval(0) = status; |
|
2321
|
575 } |
|
2083
|
576 } |
|
1683
|
577 } |
|
|
578 else |
|
2083
|
579 print_usage ("system"); |
|
1683
|
580 |
|
3834
|
581 unwind_protect::run_frame ("Fsystem"); |
|
|
582 |
|
1683
|
583 return retval; |
|
|
584 } |
|
|
585 |
|
|
586 DEFALIAS (shell_cmd, system); |
|
|
587 |
|
2614
|
588 // XXX FIXME XXX -- this should really be static, but that causes |
|
|
589 // problems on some systems. |
|
4214
|
590 std::stack<std::string> octave_atexit_functions; |
|
2077
|
591 |
|
|
592 void |
|
|
593 do_octave_atexit (void) |
|
|
594 { |
|
3216
|
595 static bool deja_vu = false; |
|
|
596 |
|
2077
|
597 while (! octave_atexit_functions.empty ()) |
|
|
598 { |
|
4233
|
599 std::string fcn = octave_atexit_functions.top (); |
|
4214
|
600 |
|
|
601 octave_atexit_functions.pop (); |
|
2077
|
602 |
|
4233
|
603 feval (fcn, octave_value_list (), 0); |
|
3215
|
604 |
|
|
605 flush_octave_stdout (); |
|
2077
|
606 } |
|
3216
|
607 |
|
|
608 if (! deja_vu) |
|
|
609 { |
|
|
610 deja_vu = true; |
|
|
611 |
|
|
612 command_editor::restore_terminal_state (); |
|
|
613 |
|
|
614 // XXX FIXME XXX -- is this needed? Can it cause any trouble? |
|
|
615 raw_mode (0); |
|
|
616 |
|
|
617 command_history::clean_up_and_save (); |
|
|
618 |
|
|
619 close_plot_stream (); |
|
|
620 |
|
|
621 close_files (); |
|
|
622 |
|
|
623 cleanup_tmp_files (); |
|
|
624 |
|
|
625 flush_octave_stdout (); |
|
|
626 |
|
|
627 if (!quitting_gracefully && (interactive || forced_interactive)) |
|
3531
|
628 std::cout << "\n"; |
|
3216
|
629 } |
|
2077
|
630 } |
|
|
631 |
|
2162
|
632 DEFUN (atexit, args, , |
|
3332
|
633 "-*- texinfo -*-\n\ |
|
|
634 @deftypefn {Built-in Function} {} atexit (@var{fcn})\n\ |
|
|
635 Register a function to be called when Octave exits. For example,\n\ |
|
2077
|
636 \n\ |
|
3332
|
637 @example\n\ |
|
|
638 @group\n\ |
|
3686
|
639 function print_fortune ()\n\ |
|
3332
|
640 printf (\"\\n%s\\n\", system (\"fortune\"));\n\ |
|
|
641 fflush (stdout);\n\ |
|
|
642 endfunction\n\ |
|
3686
|
643 atexit (\"print_fortune\");\n\ |
|
3332
|
644 @end group\n\ |
|
|
645 @end example\n\ |
|
|
646 \n\ |
|
|
647 @noindent\n\ |
|
|
648 will print a message when Octave exits.\n\ |
|
3333
|
649 @end deftypefn") |
|
2077
|
650 { |
|
2086
|
651 octave_value_list retval; |
|
2077
|
652 |
|
|
653 int nargin = args.length (); |
|
|
654 |
|
|
655 if (nargin == 1) |
|
|
656 { |
|
2475
|
657 #if defined (HAVE_ATEXIT) || defined (HAVE_ON_EXIT) |
|
3523
|
658 std::string arg = args(0).string_value (); |
|
2077
|
659 |
|
|
660 if (! error_state) |
|
|
661 octave_atexit_functions.push (arg); |
|
|
662 else |
|
|
663 error ("atexit: argument must be a string"); |
|
2475
|
664 #else |
|
|
665 gripe_not_supported ("atexit"); |
|
|
666 #endif |
|
2077
|
667 } |
|
|
668 else |
|
|
669 print_usage ("atexit"); |
|
|
670 |
|
|
671 return retval; |
|
|
672 } |
|
|
673 |
|
2689
|
674 DEFUN (octave_config_info, args, , |
|
3301
|
675 "-*- texinfo -*-\n\ |
|
|
676 @deftypefn {Built-in Function} {} octave_config_info (@var{option})\n\ |
|
|
677 Return a structure containing configuration and installation\n\ |
|
|
678 information for Octave.\n\ |
|
2689
|
679 \n\ |
|
3301
|
680 if @var{option} is a string, return the configuration information for the\n\ |
|
2689
|
681 specified option.\n\ |
|
|
682 \n\ |
|
3301
|
683 @end deftypefn") |
|
2162
|
684 { |
|
2689
|
685 octave_value retval; |
|
|
686 |
|
4128
|
687 #if defined (ENABLE_DYNAMIC_LINKING) |
|
2689
|
688 bool octave_supports_dynamic_linking = true; |
|
|
689 #else |
|
|
690 bool octave_supports_dynamic_linking = false; |
|
|
691 #endif |
|
|
692 |
|
4357
|
693 // We do it this way instead of using a series of "m[KEY](0) = VAL" |
|
|
694 // statements to avoid problems with gcc 2.96 (and possibly other |
|
|
695 // compilers) that can't handle a long series of lines like that. |
|
|
696 |
|
|
697 static bool initialized = false; |
|
|
698 static Octave_map m; |
|
2162
|
699 |
|
4357
|
700 static const char * const conf_info[] = |
|
|
701 { |
|
|
702 "ALL_CFLAGS", OCTAVE_CONF_ALL_CFLAGS, |
|
|
703 "ALL_CXXFLAGS", OCTAVE_CONF_ALL_CXXFLAGS, |
|
|
704 "ALL_FFLAGS", OCTAVE_CONF_ALL_FFLAGS, |
|
|
705 "ALL_LDFLAGS", OCTAVE_CONF_ALL_LDFLAGS, |
|
|
706 "AR", OCTAVE_CONF_AR, |
|
|
707 "ARFLAGS", OCTAVE_CONF_ARFLAGS, |
|
|
708 "BLAS_LIBS", OCTAVE_CONF_BLAS_LIBS, |
|
|
709 "CC", OCTAVE_CONF_CC, |
|
|
710 "CC_VERSION", OCTAVE_CONF_CC_VERSION, |
|
|
711 "CFLAGS", OCTAVE_CONF_CFLAGS, |
|
|
712 "CPICFLAG", OCTAVE_CONF_CPICFLAG, |
|
|
713 "CPPFLAGS", OCTAVE_CONF_CPPFLAGS, |
|
|
714 "CXX", OCTAVE_CONF_CXX, |
|
|
715 "CXXCPP", OCTAVE_CONF_CXXCPP, |
|
|
716 "CXXFLAGS", OCTAVE_CONF_CXXFLAGS, |
|
|
717 "CXXPICFLAG", OCTAVE_CONF_CXXPICFLAG, |
|
|
718 "CXX_VERSION", OCTAVE_CONF_CXX_VERSION, |
|
|
719 "DEFAULT_PAGER", OCTAVE_DEFAULT_PAGER, |
|
|
720 "DLFCN_INCFLAGS", OCTAVE_CONF_DLFCN_INCFLAGS, |
|
|
721 "EXEEXT", OCTAVE_CONF_EXEEXT, |
|
|
722 "F2C", OCTAVE_CONF_F2C, |
|
|
723 "F2CFLAGS", OCTAVE_CONF_F2CFLAGS, |
|
|
724 "F77", OCTAVE_CONF_F77, |
|
|
725 "FC", OCTAVE_CONF_FC, |
|
|
726 "FFLAGS", OCTAVE_CONF_FFLAGS, |
|
|
727 "FFTW_LIBS", OCTAVE_CONF_FFTW_LIBS, |
|
|
728 "FLIBS", OCTAVE_CONF_FLIBS, |
|
|
729 "FPICFLAG", OCTAVE_CONF_FPICFLAG, |
|
|
730 "GLOB_INCFLAGS", OCTAVE_CONF_GLOB_INCFLAGS, |
|
|
731 "INCFLAGS", OCTAVE_CONF_INCFLAGS, |
|
|
732 "LDFLAGS", OCTAVE_CONF_LDFLAGS, |
|
|
733 "LD_CXX", OCTAVE_CONF_LD_CXX, |
|
|
734 "LD_STATIC_FLAG", OCTAVE_CONF_LD_STATIC_FLAG, |
|
|
735 "LEX", OCTAVE_CONF_LEX, |
|
|
736 "LEXLIB", OCTAVE_CONF_LEXLIB, |
|
|
737 "LFLAGS", OCTAVE_CONF_LFLAGS, |
|
|
738 "LIBCRUFT", OCTAVE_CONF_LIBCRUFT, |
|
|
739 "LIBDLFCN", OCTAVE_CONF_LIBDLFCN, |
|
|
740 "LIBEXT", OCTAVE_CONF_LIBEXT, |
|
|
741 "LIBFLAGS", OCTAVE_CONF_LIBFLAGS, |
|
|
742 "LIBGLOB", OCTAVE_CONF_LIBGLOB, |
|
|
743 "LIBKPATHSEA", OCTAVE_CONF_LIBKPATHSEA, |
|
|
744 "LIBOCTAVE", OCTAVE_CONF_LIBOCTAVE, |
|
|
745 "LIBOCTINTERP", OCTAVE_CONF_LIBOCTINTERP, |
|
|
746 "LIBPLPLOT", OCTAVE_CONF_LIBPLPLOT, |
|
|
747 "LIBREADLINE", OCTAVE_CONF_LIBREADLINE, |
|
|
748 "LIBS", OCTAVE_CONF_LIBS, |
|
|
749 "LN_S", OCTAVE_CONF_LN_S, |
|
|
750 "MKOCTFILE_INCFLAGS", OCTAVE_CONF_MKOCTFILE_INCFLAGS, |
|
|
751 "MKOCTFILE_LFLAGS", OCTAVE_CONF_MKOCTFILE_LFLAGS, |
|
|
752 "MKOCTFILE_SH_LDFLAGS", OCTAVE_CONF_MKOCTFILE_SH_LDFLAGS, |
|
|
753 "RANLIB", OCTAVE_CONF_RANLIB, |
|
|
754 "RDYNAMIC_FLAG", OCTAVE_CONF_RDYNAMIC_FLAG, |
|
|
755 "RLD_FLAG", OCTAVE_CONF_RLD_FLAG, |
|
|
756 "RUNTEST", OCTAVE_CONF_RUNTEST, |
|
|
757 "SED", OCTAVE_CONF_SED, |
|
|
758 "SHARED_LIBS", OCTAVE_CONF_SHARED_LIBS, |
|
|
759 "SHLEXT", OCTAVE_CONF_SHLEXT, |
|
|
760 "SHLEXT_VER", OCTAVE_CONF_SHLEXT_VER, |
|
|
761 "SH_LD", OCTAVE_CONF_SH_LD, |
|
|
762 "SH_LDFLAGS", OCTAVE_CONF_SH_LDFLAGS, |
|
|
763 "SONAME_FLAGS", OCTAVE_CONF_SONAME_FLAGS, |
|
|
764 "STATIC_LIBS", OCTAVE_CONF_STATIC_LIBS, |
|
|
765 "UGLY_DEFS", OCTAVE_CONF_DEFS, |
|
|
766 "UGLY_DEFS", OCTAVE_CONF_UGLY_DEFS, |
|
|
767 "ENABLE_DYNAMIC_LINKING", OCTAVE_CONF_ENABLE_DYNAMIC_LINKING, |
|
|
768 "XTRA_CFLAGS", OCTAVE_CONF_XTRA_CFLAGS, |
|
|
769 "XTRA_CXXFLAGS", OCTAVE_CONF_XTRA_CXXFLAGS, |
|
|
770 "YACC", OCTAVE_CONF_YACC, |
|
|
771 "YFLAGS", OCTAVE_CONF_YFLAGS, |
|
|
772 "archlibdir", OCTAVE_ARCHLIBDIR, |
|
|
773 "bindir", OCTAVE_BINDIR, |
|
|
774 "canonical_host_type", OCTAVE_CANONICAL_HOST_TYPE, |
|
|
775 "config_opts", OCTAVE_CONF_config_opts, |
|
|
776 "datadir", OCTAVE_DATADIR, |
|
|
777 "exec_prefix", OCTAVE_EXEC_PREFIX, |
|
|
778 "fcnfiledir", OCTAVE_FCNFILEDIR, |
|
|
779 "fcnfilepath", OCTAVE_FCNFILEPATH, |
|
|
780 "imagedir", OCTAVE_IMAGEDIR, |
|
|
781 "imagepath", OCTAVE_IMAGEPATH, |
|
|
782 "includedir", OCTAVE_INCLUDEDIR, |
|
|
783 "infodir", OCTAVE_INFODIR, |
|
|
784 "infofile", OCTAVE_INFOFILE, |
|
|
785 "libdir", OCTAVE_LIBDIR, |
|
|
786 "libexecdir", OCTAVE_LIBEXECDIR, |
|
|
787 "localarchlibdir", OCTAVE_LOCALARCHLIBDIR, |
|
|
788 "localfcnfiledir", OCTAVE_LOCALFCNFILEDIR, |
|
|
789 "localfcnfilepath", OCTAVE_LOCALFCNFILEPATH, |
|
|
790 "localoctfiledir", OCTAVE_LOCALOCTFILEDIR, |
|
|
791 "localoctfilepath", OCTAVE_LOCALOCTFILEPATH, |
|
|
792 "localstartupfiledir", OCTAVE_LOCALSTARTUPFILEDIR, |
|
|
793 "localverarchlibdir", OCTAVE_LOCALVERARCHLIBDIR, |
|
|
794 "localverfcnfiledir", OCTAVE_LOCALVERFCNFILEDIR, |
|
|
795 "localveroctfiledir", OCTAVE_LOCALVEROCTFILEDIR, |
|
|
796 "man1dir", OCTAVE_MAN1DIR, |
|
|
797 "man1ext", OCTAVE_MAN1EXT, |
|
|
798 "mandir", OCTAVE_MANDIR, |
|
|
799 "octfiledir", OCTAVE_OCTFILEDIR, |
|
|
800 "octincludedir", OCTAVE_OCTINCLUDEDIR, |
|
|
801 "octlibdir", OCTAVE_OCTLIBDIR, |
|
|
802 "prefix", OCTAVE_PREFIX, |
|
|
803 "startupfiledir", OCTAVE_STARTUPFILEDIR, |
|
|
804 "version", OCTAVE_VERSION, |
|
|
805 0, 0 |
|
|
806 }; |
|
|
807 |
|
|
808 if (! initialized) |
|
|
809 { |
|
|
810 m ["dld"](0) = octave_value (octave_supports_dynamic_linking); |
|
|
811 |
|
|
812 int i = 0; |
|
|
813 while (1) |
|
|
814 { |
|
|
815 const char *key = conf_info[i++]; |
|
|
816 |
|
|
817 if (key) |
|
|
818 m [key](0) = octave_value (conf_info[i++]); |
|
|
819 else |
|
|
820 break; |
|
|
821 } |
|
|
822 |
|
|
823 initialized = true; |
|
|
824 } |
|
2162
|
825 |
|
2689
|
826 int nargin = args.length (); |
|
|
827 |
|
|
828 if (nargin == 1) |
|
|
829 { |
|
3523
|
830 std::string arg = args(0).string_value (); |
|
2689
|
831 |
|
|
832 if (! error_state) |
|
4233
|
833 retval = m [arg.c_str ()](0); |
|
2689
|
834 } |
|
|
835 else if (nargin == 0) |
|
4233
|
836 retval = m; |
|
2689
|
837 else |
|
|
838 print_usage ("octave_config_info"); |
|
|
839 |
|
|
840 return retval; |
|
2162
|
841 } |
|
|
842 |
|
1683
|
843 #if defined (__GNUG__) && defined (DEBUG_NEW_DELETE) |
|
2806
|
844 |
|
1683
|
845 int debug_new_delete = 0; |
|
|
846 |
|
|
847 typedef void (*vfp)(void); |
|
|
848 extern vfp __new_handler; |
|
|
849 |
|
|
850 void * |
|
|
851 __builtin_new (size_t sz) |
|
|
852 { |
|
|
853 void *p; |
|
|
854 |
|
|
855 /* malloc (0) is unpredictable; avoid it. */ |
|
|
856 if (sz == 0) |
|
|
857 sz = 1; |
|
2800
|
858 p = malloc (sz); |
|
1683
|
859 while (p == 0) |
|
|
860 { |
|
|
861 (*__new_handler) (); |
|
2800
|
862 p = malloc (sz); |
|
1683
|
863 } |
|
|
864 |
|
|
865 if (debug_new_delete) |
|
3538
|
866 std::cout << "__builtin_new: " << p << std::endl; |
|
1683
|
867 |
|
|
868 return p; |
|
|
869 } |
|
|
870 |
|
|
871 void |
|
|
872 __builtin_delete (void *ptr) |
|
|
873 { |
|
|
874 if (debug_new_delete) |
|
3538
|
875 std::cout << "__builtin_delete: " << ptr << std::endl; |
|
1683
|
876 |
|
|
877 if (ptr) |
|
|
878 free (ptr); |
|
|
879 } |
|
2806
|
880 |
|
1683
|
881 #endif |
|
|
882 |
|
2806
|
883 void |
|
|
884 symbols_of_toplev (void) |
|
|
885 { |
|
3141
|
886 DEFCONST (argv, , |
|
3332
|
887 "-*- texinfo -*-\n\ |
|
|
888 @defvr {Built-in Variable} argv\n\ |
|
|
889 The command line arguments passed to Octave are available in this\n\ |
|
|
890 variable. For example, if you invoked Octave using the command\n\ |
|
|
891 \n\ |
|
|
892 @example\n\ |
|
|
893 octave --no-line-editing --silent\n\ |
|
|
894 @end example\n\ |
|
|
895 \n\ |
|
|
896 @noindent\n\ |
|
3971
|
897 @code{argv} would be a cell array of strings with the elements\n\ |
|
3332
|
898 @code{--no-line-editing} and @code{--silent}.\n\ |
|
|
899 \n\ |
|
|
900 If you write an executable Octave script, @code{argv} will contain the\n\ |
|
3402
|
901 list of arguments passed to the script. @xref{Executable Octave Programs},\n\ |
|
|
902 for an example of how to create an executable Octave script.\n\ |
|
3333
|
903 @end defvr"); |
|
2806
|
904 |
|
3020
|
905 DEFCONST (program_invocation_name, |
|
3141
|
906 octave_env::get_program_invocation_name (), |
|
3332
|
907 "-*- texinfo -*-\n\ |
|
|
908 @defvr {Built-in Variable} program_invocation_name\n\ |
|
|
909 @defvrx {Built-in Variable} program_name\n\ |
|
|
910 When Octave starts, the value of the built-in variable\n\ |
|
|
911 @code{program_invocation_name} is automatically set to the name that was\n\ |
|
|
912 typed at the shell prompt to run Octave, and the value of\n\ |
|
|
913 @code{program_name} is automatically set to the final component of\n\ |
|
|
914 @code{program_invocation_name}. For example, if you typed\n\ |
|
|
915 @samp{@value{OCTAVEHOME}/bin/octave} to start Octave,\n\ |
|
|
916 @code{program_invocation_name} would have the value\n\ |
|
|
917 @code{\"@value{OCTAVEHOME}/bin/octave\"}, and @code{program_name} would\n\ |
|
|
918 have the value @code{\"octave\"}.\n\ |
|
|
919 \n\ |
|
|
920 If executing a script from the command line (e.g., @code{octave foo.m})\n\ |
|
|
921 or using an executable Octave script, the program name is set to the\n\ |
|
3402
|
922 name of the script. @xref{Executable Octave Programs}, for an example of\n\ |
|
3332
|
923 how to create an executable Octave script.\n\ |
|
3333
|
924 @end defvr"); |
|
3020
|
925 |
|
3141
|
926 DEFCONST (program_name, octave_env::get_program_name (), |
|
3332
|
927 "-*- texinfo -*-\n\ |
|
|
928 @defvr {Built-in Variable} program_invocation_name\n\ |
|
|
929 @defvrx {Built-in Variable} program_name\n\ |
|
|
930 When Octave starts, the value of the built-in variable\n\ |
|
|
931 @code{program_invocation_name} is automatically set to the name that was\n\ |
|
|
932 typed at the shell prompt to run Octave, and the value of\n\ |
|
|
933 @code{program_name} is automatically set to the final component of\n\ |
|
|
934 @code{program_invocation_name}. For example, if you typed\n\ |
|
|
935 @samp{@value{OCTAVEHOME}/bin/octave} to start Octave,\n\ |
|
|
936 @code{program_invocation_name} would have the value\n\ |
|
|
937 @code{\"@value{OCTAVEHOME}/bin/octave\"}, and @code{program_name} would\n\ |
|
|
938 have the value @code{\"octave\"}.\n\ |
|
|
939 \n\ |
|
|
940 If executing a script from the command line (e.g., @code{octave foo.m})\n\ |
|
|
941 or using an executable Octave script, the program name is set to the\n\ |
|
3402
|
942 name of the script. @xref{Executable Octave Programs}, for an example of\n\ |
|
3332
|
943 how to create an executable Octave script.\n\ |
|
3333
|
944 @end defvr"); |
|
|
945 |
|
2806
|
946 } |
|
|
947 |
|
1683
|
948 /* |
|
|
949 ;;; Local Variables: *** |
|
|
950 ;;; mode: C++ *** |
|
|
951 ;;; End: *** |
|
|
952 */ |
