Mercurial > octave
annotate src/octave.cc @ 11234:2718e1fdf82f
IEEE math initialization tweaks
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Wed, 10 Nov 2010 21:52:51 -0500 |
| parents | c75130f19440 |
| children | 944b7e20fc5a |
| rev | line source |
|---|---|
| 1 | 1 /* |
| 2 | |
| 7017 | 3 Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, |
| 8920 | 4 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 John W. Eaton |
| 1 | 5 |
| 6 This file is part of Octave. | |
| 7 | |
| 8 Octave is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published by the | |
| 7016 | 10 Free Software Foundation; either version 3 of the License, or (at your |
| 11 option) any later version. | |
| 1 | 12 |
| 13 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 7016 | 19 along with Octave; see the file COPYING. If not, see |
| 20 <http://www.gnu.org/licenses/>. | |
| 1 | 21 |
| 22 */ | |
| 23 | |
| 24 // Born February 20, 1992. | |
| 25 | |
| 240 | 26 #ifdef HAVE_CONFIG_H |
| 1192 | 27 #include <config.h> |
| 1 | 28 #endif |
| 29 | |
| 1355 | 30 #include <cassert> |
| 31 #include <cstdlib> | |
| 32 #include <cstring> | |
| 33 #include <ctime> | |
| 34 | |
| 3503 | 35 #include <iostream> |
| 1355 | 36 |
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37 #include <getopt.h> |
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38 |
| 2926 | 39 #include "cmd-edit.h" |
| 3690 | 40 #include "f77-fcn.h" |
| 4097 | 41 #include "file-ops.h" |
| 2926 | 42 #include "file-stat.h" |
| 240 | 43 #include "lo-error.h" |
| 2926 | 44 #include "oct-env.h" |
| 3019 | 45 #include "pathsearch.h" |
| 1907 | 46 #include "str-vec.h" |
| 223 | 47 |
| 2492 | 48 #include <defaults.h> |
| 3933 | 49 #include "Cell.h" |
| 1355 | 50 #include "defun.h" |
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51 #include "display.h" |
| 1355 | 52 #include "error.h" |
| 53 #include "file-io.h" | |
| 1 | 54 #include "input.h" |
| 55 #include "lex.h" | |
| 5832 | 56 #include "load-path.h" |
| 4113 | 57 #include "octave.h" |
| 1742 | 58 #include "oct-hist.h" |
| 5654 | 59 #include "oct-map.h" |
| 3195 | 60 #include "oct-obj.h" |
| 2375 | 61 #include "ops.h" |
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62 #include "ov.h" |
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63 #include "ov-range.h" |
| 1670 | 64 #include "toplev.h" |
| 1 | 65 #include "parse.h" |
| 562 | 66 #include "procstream.h" |
| 1355 | 67 #include "sighandlers.h" |
| 68 #include "sysdep.h" | |
| 1 | 69 #include "unwind-prot.h" |
| 1355 | 70 #include "utils.h" |
| 71 #include "variables.h" | |
| 2492 | 72 #include <version.h> |
| 1 | 73 |
| 4159 | 74 // Kluge. |
| 5990 | 75 extern "C" F77_RET_T |
| 76 F77_FUNC (xerbla, XERBLA) (F77_CONST_CHAR_ARG_DECL, const octave_idx_type& | |
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77 F77_CHAR_ARG_LEN_DECL); |
| 4159 | 78 |
| 2910 | 79 extern void install_builtins (void); |
| 80 | |
| 1907 | 81 // The command-line options. |
| 82 static string_vector octave_argv; | |
| 1 | 83 |
| 5780 | 84 // The name used to invoke Octave. |
| 85 static std::string | |
| 86 octave_program_invocation_name; | |
| 87 | |
| 88 // The last component of octave_program_invocation_name. | |
| 89 static std::string octave_program_name; | |
| 90 | |
| 2239 | 91 // TRUE means we read ~/.octaverc and ./.octaverc. |
| 92 // (--norc; --no-init-file; -f) | |
| 93 static bool read_init_files = true; | |
| 94 | |
| 95 // TRUE means we read the site-wide octaverc files. | |
| 96 // (--norc; --no-site-file; -f) | |
| 2240 | 97 static bool read_site_files = true; |
| 1 | 98 |
| 6365 | 99 // TRUE means we set the initial path to configured defaults. |
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100 // (--no-init-path) |
| 6365 | 101 static bool set_initial_path = true; |
| 102 | |
| 3019 | 103 // TRUE means we don't print the usual startup message. |
| 616 | 104 // (--quiet; --silent; -q) |
| 2239 | 105 static bool inhibit_startup_message = false; |
| 1 | 106 |
| 3019 | 107 // TRUE means we turn on compatibility options. |
| 1410 | 108 // (--traditional) |
| 2239 | 109 static bool traditional = false; |
| 1410 | 110 |
| 3019 | 111 // If TRUE, print verbose info in some cases. |
| 1825 | 112 // (--verbose; -V) |
| 2239 | 113 static bool verbose_flag = false; |
| 1825 | 114 |
| 1 | 115 // Usage message |
| 139 | 116 static const char *usage_string = |
| 11140 | 117 "octave [-HVdfhiqvx] [--debug] [--echo-commands] [--eval CODE]\n\ |
| 5814 | 118 [--exec-path path] [--help] [--image-path path] [--info-file file]\n\ |
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119 [--info-program prog] [--interactive] [--line-editing]\n\ |
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120 [--no-history] [--no-init-file] [--no-init-path] [--no-line-editing]\n\ |
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121 [--no-site-file] [--no-window-system] [-p path] [--path path]\n\ |
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122 [--silent] [--traditional] [--verbose] [--version] [file]"; |
| 1 | 123 |
| 1358 | 124 // This is here so that it's more likely that the usage message and |
| 1410 | 125 // the real set of options will agree. Note: the `+' must come first |
| 126 // to prevent getopt from permuting arguments! | |
| 11140 | 127 static const char *short_opts = "+HVdfhip:qvx"; |
| 139 | 128 |
| 5189 | 129 // The code to evaluate at startup (--eval CODE) |
| 130 static std::string code_to_eval; | |
| 131 | |
| 132 // If TRUE, don't exit after evaluating code given by --eval option. | |
| 133 static bool persist = false; | |
| 4356 | 134 |
| 1103 | 135 // Long options. See the comments in getopt.h for the meanings of the |
| 136 // fields in this structure. | |
| 8861 | 137 #define DOC_CACHE_FILE_OPTION 1 |
| 138 #define EVAL_OPTION 2 | |
| 139 #define EXEC_PATH_OPTION 3 | |
| 140 #define IMAGE_PATH_OPTION 4 | |
| 141 #define INFO_FILE_OPTION 5 | |
| 142 #define INFO_PROG_OPTION 6 | |
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143 #define LINE_EDITING_OPTION 7 |
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144 #define NO_INIT_FILE_OPTION 8 |
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145 #define NO_INIT_PATH_OPTION 9 |
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146 #define NO_LINE_EDITING_OPTION 10 |
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147 #define NO_SITE_FILE_OPTION 11 |
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148 #define NO_WINDOW_SYSTEM_OPTION 12 |
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149 #define PERSIST_OPTION 13 |
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150 #define TRADITIONAL_OPTION 14 |
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151 struct option long_opts[] = |
| 139 | 152 { |
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153 { "braindead", no_argument, 0, TRADITIONAL_OPTION }, |
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154 { "debug", no_argument, 0, 'd' }, |
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155 { "doc-cache-file", required_argument, 0, DOC_CACHE_FILE_OPTION }, |
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156 { "echo-commands", no_argument, 0, 'x' }, |
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157 { "eval", required_argument, 0, EVAL_OPTION }, |
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158 { "exec-path", required_argument, 0, EXEC_PATH_OPTION }, |
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159 { "help", no_argument, 0, 'h' }, |
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160 { "image-path", required_argument, 0, IMAGE_PATH_OPTION }, |
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161 { "info-file", required_argument, 0, INFO_FILE_OPTION }, |
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162 { "info-program", required_argument, 0, INFO_PROG_OPTION }, |
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163 { "interactive", no_argument, 0, 'i' }, |
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164 { "line-editing", no_argument, 0, LINE_EDITING_OPTION }, |
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165 { "no-history", no_argument, 0, 'H' }, |
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166 { "no-init-file", no_argument, 0, NO_INIT_FILE_OPTION }, |
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167 { "no-init-path", no_argument, 0, NO_INIT_PATH_OPTION }, |
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168 { "no-line-editing", no_argument, 0, NO_LINE_EDITING_OPTION }, |
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169 { "no-site-file", no_argument, 0, NO_SITE_FILE_OPTION }, |
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170 { "no-window-system", no_argument, 0, NO_WINDOW_SYSTEM_OPTION }, |
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171 { "norc", no_argument, 0, 'f' }, |
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172 { "path", required_argument, 0, 'p' }, |
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173 { "persist", no_argument, 0, PERSIST_OPTION }, |
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174 { "quiet", no_argument, 0, 'q' }, |
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175 { "silent", no_argument, 0, 'q' }, |
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176 { "traditional", no_argument, 0, TRADITIONAL_OPTION }, |
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177 { "verbose", no_argument, 0, 'V' }, |
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178 { "version", no_argument, 0, 'v' }, |
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179 { 0, 0, 0, 0 } |
| 139 | 180 }; |
| 1 | 181 |
| 1355 | 182 // Store the command-line options for later use. |
| 183 | |
| 184 static void | |
| 185 intern_argv (int argc, char **argv) | |
| 186 { | |
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187 assert (symbol_table::at_top_level ()); |
| 4892 | 188 |
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189 symbol_table::varref (".nargin.") = argc - 1; |
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190 |
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191 symbol_table::mark_hidden (".nargin."); |
| 3195 | 192 |
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193 if (argc > 0) |
| 1355 | 194 { |
| 7336 | 195 octave_argv.resize (argc - 1); |
| 3933 | 196 |
| 2495 | 197 // Skip program name in argv. |
| 3933 | 198 int i = argc; |
| 199 while (--i > 0) | |
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200 octave_argv[i-1] = *(argv+i); |
| 1355 | 201 } |
| 202 } | |
| 203 | |
| 1792 | 204 static void |
| 205 initialize_pathsearch (void) | |
| 206 { | |
| 207 // This may seem odd, but doing it this way means that we don't have | |
| 208 // to modify the kpathsea library... | |
| 209 | |
| 3523 | 210 std::string odb = octave_env::getenv ("OCTAVE_DB_PATH"); |
| 3141 | 211 |
| 212 // For backward compatibility. | |
| 1792 | 213 |
| 2926 | 214 if (odb.empty ()) |
| 3141 | 215 odb = octave_env::getenv ("OCTAVE_DB_DIR"); |
| 1792 | 216 |
| 3141 | 217 if (odb.empty ()) |
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218 odb = Vdata_dir + file_ops::dir_sep_str () + "octave:" |
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219 + Vlibexec_dir + file_ops::dir_sep_str () + "octave"; |
| 1792 | 220 } |
| 221 | |
| 5654 | 222 DEFUN (__version_info__, args, , |
| 223 "-*- texinfo -*-\n\ | |
| 6678 | 224 @deftypefn {Built-in Function} {retval =} __version_info__ (@var{name}, @var{version}, @var{release}, @var{date})\n\ |
| 6945 | 225 Undocumented internal function.\n\ |
| 5654 | 226 @end deftypefn") |
| 227 { | |
| 228 octave_value retval; | |
| 229 | |
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230 static octave_map vinfo; |
| 5654 | 231 |
| 232 int nargin = args.length (); | |
| 233 | |
| 5658 | 234 if (nargin == 4) |
| 5654 | 235 { |
| 6639 | 236 if (vinfo.nfields () == 0) |
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237 { |
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238 vinfo.assign ("Name", args (0)); |
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239 vinfo.assign ("Version", args (1)); |
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240 vinfo.assign ("Release", args (2)); |
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241 vinfo.assign ("Date", args (3)); |
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242 } |
| 5781 | 243 else |
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244 { |
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245 octave_idx_type n = vinfo.numel () + 1; |
| 5654 | 246 |
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247 vinfo.resize (dim_vector (n, 1)); |
| 5781 | 248 |
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249 octave_value idx (n); |
| 5781 | 250 |
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251 vinfo.assign (idx, "Name", Cell (octave_value (args (0)))); |
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252 vinfo.assign (idx, "Version", Cell (octave_value (args (1)))); |
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253 vinfo.assign (idx, "Release", Cell (octave_value (args (2)))); |
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254 vinfo.assign (idx, "Date", Cell (octave_value (args (3)))); |
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255 } |
| 5654 | 256 } |
| 257 else if (nargin == 0) | |
| 258 retval = vinfo; | |
| 259 else | |
| 5823 | 260 print_usage (); |
| 5654 | 261 |
| 262 return retval; | |
| 263 } | |
| 264 | |
| 265 static void | |
| 266 initialize_version_info (void) | |
| 267 { | |
| 268 octave_value_list args; | |
| 269 | |
| 5658 | 270 args(3) = OCTAVE_RELEASE_DATE; |
| 271 args(2) = OCTAVE_RELEASE; | |
| 5654 | 272 args(1) = OCTAVE_VERSION; |
| 273 args(0) = "GNU Octave"; | |
| 274 | |
| 275 F__version_info__ (args, 0); | |
| 276 } | |
| 277 | |
| 581 | 278 // Initialize by reading startup files. |
| 279 | |
| 1 | 280 static void |
| 281 execute_startup_files (void) | |
| 282 { | |
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283 unwind_protect frame; |
| 315 | 284 |
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285 frame.protect_var (input_from_startup_file); |
| 1651 | 286 |
| 3019 | 287 input_from_startup_file = true; |
| 315 | 288 |
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289 std::string context; |
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290 |
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291 bool verbose = (verbose_flag && ! inhibit_startup_message); |
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292 |
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293 bool require_file = false; |
| 578 | 294 |
| 2239 | 295 if (read_site_files) |
| 1 | 296 { |
| 2239 | 297 // Execute commands from the site-wide configuration file. |
| 298 // First from the file $(prefix)/lib/octave/site/m/octaverc | |
| 299 // (if it exists), then from the file | |
| 3597 | 300 // $(prefix)/share/octave/$(version)/m/octaverc (if it exists). |
| 1755 | 301 |
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302 source_file (Vlocal_site_defaults_file, context, verbose, require_file); |
| 1755 | 303 |
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304 source_file (Vsite_defaults_file, context, verbose, require_file); |
| 1 | 305 } |
| 306 | |
| 2239 | 307 if (read_init_files) |
| 308 { | |
| 2512 | 309 // Try to execute commands from $HOME/$OCTAVE_INITFILE and |
| 310 // $OCTAVE_INITFILE. If $OCTAVE_INITFILE is not set, .octaverc | |
| 311 // is assumed. | |
| 2239 | 312 |
| 4804 | 313 bool home_rc_already_executed = false; |
| 2512 | 314 |
| 3523 | 315 std::string initfile = octave_env::getenv ("OCTAVE_INITFILE"); |
| 2512 | 316 |
| 2926 | 317 if (initfile.empty ()) |
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318 initfile = ".octaverc"; |
| 2512 | 319 |
| 3523 | 320 std::string home_dir = octave_env::get_home_directory (); |
| 2926 | 321 |
| 4804 | 322 std::string home_rc = octave_env::make_absolute (initfile, home_dir); |
| 323 | |
| 324 std::string local_rc; | |
| 2239 | 325 |
| 5781 | 326 if (! home_rc.empty ()) |
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327 { |
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328 source_file (home_rc, context, verbose, require_file); |
| 2239 | 329 |
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330 // Names alone are not enough. |
| 2239 | 331 |
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332 file_stat fs_home_rc (home_rc); |
| 2239 | 333 |
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334 if (fs_home_rc) |
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335 { |
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336 // We want to check for curr_dir after executing home_rc |
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337 // because doing that may change the working directory. |
| 4804 | 338 |
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339 local_rc = octave_env::make_absolute (initfile); |
| 4804 | 340 |
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341 home_rc_already_executed = same_file (home_rc, local_rc); |
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342 } |
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343 } |
| 2239 | 344 |
| 345 if (! home_rc_already_executed) | |
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346 { |
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347 if (local_rc.empty ()) |
| 10250 | 348 local_rc = octave_env::make_absolute (initfile); |
| 4804 | 349 |
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350 source_file (local_rc, context, verbose, require_file); |
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351 } |
| 2239 | 352 } |
| 1 | 353 } |
| 354 | |
| 5189 | 355 static int |
| 356 execute_eval_option_code (const std::string& code) | |
| 357 { | |
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358 unwind_protect frame; |
| 5189 | 359 |
| 7202 | 360 octave_save_signal_mask (); |
| 361 | |
| 362 can_interrupt = true; | |
| 363 | |
| 364 octave_signal_hook = octave_signal_handler; | |
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365 octave_interrupt_hook = 0; |
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366 octave_bad_alloc_hook = 0; |
| 7202 | 367 |
| 368 octave_catch_interrupts (); | |
| 369 | |
| 370 octave_initialized = true; | |
| 371 | |
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372 frame.protect_var (interactive); |
| 5189 | 373 |
| 374 interactive = false; | |
| 375 | |
| 376 int parse_status = 0; | |
| 377 | |
| 6487 | 378 try |
| 379 { | |
| 380 eval_string (code, false, parse_status, 0); | |
| 381 } | |
| 7202 | 382 catch (octave_interrupt_exception) |
| 383 { | |
| 384 recover_from_exception (); | |
| 385 octave_stdout << "\n"; | |
| 9383 | 386 if (quitting_gracefully) |
| 387 clean_up_and_exit (exit_status); | |
| 7202 | 388 } |
| 6487 | 389 catch (std::bad_alloc) |
| 390 { | |
| 6680 | 391 std::cerr << "error: memory exhausted or requested size too large for range of Octave's index type -- eval failed" |
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392 << std::endl; |
| 6487 | 393 } |
| 5189 | 394 |
| 395 return parse_status; | |
| 396 } | |
| 397 | |
| 398 static void | |
| 399 execute_command_line_file (const std::string& fname) | |
| 400 { | |
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401 unwind_protect frame; |
| 5189 | 402 |
| 7202 | 403 octave_save_signal_mask (); |
| 404 | |
| 405 can_interrupt = true; | |
| 406 | |
| 407 octave_signal_hook = octave_signal_handler; | |
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408 octave_interrupt_hook = 0; |
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409 octave_bad_alloc_hook = 0; |
| 7202 | 410 |
| 411 octave_catch_interrupts (); | |
| 412 | |
| 413 octave_initialized = true; | |
| 414 | |
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415 frame.protect_var (interactive); |
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416 frame.protect_var (reading_script_file); |
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417 frame.protect_var (input_from_command_line_file); |
| 5189 | 418 |
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419 frame.protect_var (curr_fcn_file_name); |
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420 frame.protect_var (curr_fcn_file_full_name); |
| 5189 | 421 |
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422 frame.protect_var (octave_program_invocation_name); |
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423 frame.protect_var (octave_program_name); |
| 5189 | 424 |
| 425 interactive = false; | |
| 426 reading_script_file = true; | |
| 427 input_from_command_line_file = true; | |
| 428 | |
| 429 curr_fcn_file_name = fname; | |
| 430 curr_fcn_file_full_name = curr_fcn_file_name; | |
| 431 | |
| 5780 | 432 octave_program_invocation_name = curr_fcn_file_name; |
| 5189 | 433 |
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434 size_t pos = curr_fcn_file_name.find_last_of (file_ops::dir_sep_chars ()); |
| 5189 | 435 |
| 8021 | 436 std::string tmp = (pos != std::string::npos) |
| 5189 | 437 ? curr_fcn_file_name.substr (pos+1) : curr_fcn_file_name; |
| 438 | |
| 5780 | 439 octave_program_name = tmp; |
| 5189 | 440 |
| 6504 | 441 try |
| 442 { | |
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443 std::string context; |
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444 bool verbose = false; |
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445 bool require_file = true; |
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446 |
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447 source_file (fname, context, verbose, require_file, "octave"); |
| 6504 | 448 } |
| 7202 | 449 catch (octave_interrupt_exception) |
| 450 { | |
| 451 recover_from_exception (); | |
| 452 octave_stdout << "\n"; | |
| 9383 | 453 if (quitting_gracefully) |
| 454 clean_up_and_exit (exit_status); | |
| 7202 | 455 } |
| 6504 | 456 catch (std::bad_alloc) |
| 457 { | |
| 6680 | 458 std::cerr << "error: memory exhausted or requested size too large for range of Octave's index type -- execution of " |
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459 << fname << " failed" << std::endl; |
| 6504 | 460 } |
| 5189 | 461 } |
| 462 | |
| 581 | 463 // Usage message with extra help. |
| 464 | |
| 1 | 465 static void |
| 466 verbose_usage (void) | |
| 467 { | |
| 3922 | 468 std::cout << OCTAVE_NAME_VERSION_COPYRIGHT_COPYING_AND_WARRANTY "\n\ |
| 1613 | 469 \n\ |
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470 Usage: octave [options] [FILE]\n\ |
| 1613 | 471 \n\ |
| 472 Options:\n\ | |
| 1119 | 473 \n\ |
| 3180 | 474 --debug, -d Enter parser debugging mode.\n\ |
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475 --doc-cache-file FILE Use doc cache file FILE.\n\ |
| 3180 | 476 --echo-commands, -x Echo commands as they are executed.\n\ |
| 5191 | 477 --eval CODE Evaluate CODE. Exit when done unless --persist.\n\ |
| 1613 | 478 --exec-path PATH Set path for executing subprograms.\n\ |
| 11140 | 479 --help, -h, Print short help message and exit.\n\ |
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480 --image-path PATH Add PATH to head of image search path.\n\ |
| 1613 | 481 --info-file FILE Use top-level info file FILE.\n\ |
| 482 --info-program PROGRAM Use PROGRAM for reading info files.\n\ | |
| 3180 | 483 --interactive, -i Force interactive behavior.\n\ |
| 6938 | 484 --line-editing Force readline use for command-line editing.\n\ |
| 3180 | 485 --no-history, -H Don't save commands to the history list\n\ |
| 2470 | 486 --no-init-file Don't read the ~/.octaverc or .octaverc files.\n\ |
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487 --no-init-path Don't initialize function search path.\n\ |
| 2212 | 488 --no-line-editing Don't use readline for command-line editing.\n\ |
| 2470 | 489 --no-site-file Don't read the site-wide octaverc file.\n\ |
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490 --no-window-system Disable window system, including graphics.\n\ |
| 3238 | 491 --norc, -f Don't read any initialization files.\n\ |
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492 --path PATH, -p PATH Add PATH to head of function search path.\n\ |
| 5189 | 493 --persist Go interactive after --eval or reading from FILE.\n\ |
| 3180 | 494 --silent, -q Don't print message at startup.\n\ |
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495 --traditional Set variables for closer MATLAB compatibility.\n\ |
| 3180 | 496 --verbose, -V Enable verbose output in some cases.\n\ |
| 497 --version, -v Print version number and exit.\n\ | |
| 1119 | 498 \n\ |
| 5190 | 499 FILE Execute commands from FILE. Exit when done\n\ |
| 5191 | 500 unless --persist is also specified.\n\ |
| 4829 | 501 \n" |
| 502 OCTAVE_WWW_STATEMENT "\n\ | |
| 4356 | 503 \n" |
| 504 OCTAVE_CONTRIB_STATEMENT "\n\ | |
| 505 \n" | |
| 506 OCTAVE_BUGS_STATEMENT "\n"; | |
| 285 | 507 |
| 613 | 508 exit (0); |
| 1 | 509 } |
| 510 | |
| 581 | 511 // Terse usage messsage. |
| 512 | |
| 1 | 513 static void |
| 514 usage (void) | |
| 515 { | |
| 11140 | 516 std::cerr << "\nusage: " << usage_string << "\n\n"; |
| 1 | 517 exit (1); |
| 518 } | |
| 519 | |
| 520 static void | |
| 521 print_version_and_exit (void) | |
| 522 { | |
| 3922 | 523 std::cout << OCTAVE_NAME_VERSION_COPYRIGHT_COPYING_WARRANTY_AND_BUGS "\n"; |
| 1 | 524 exit (0); |
| 525 } | |
| 526 | |
| 721 | 527 static void |
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528 lo_error_handler (const char *fmt, ...) |
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529 { |
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530 va_list args; |
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531 va_start (args, fmt); |
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532 verror_with_cfn (fmt, args); |
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533 va_end (args); |
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534 |
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535 octave_throw_execution_exception (); |
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536 } |
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537 |
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538 static void |
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539 lo_error_with_id_handler (const char *id, const char *fmt, ...) |
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540 { |
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541 va_list args; |
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542 va_start (args, fmt); |
|
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543 verror_with_id_cfn (id, fmt, args); |
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544 va_end (args); |
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545 |
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546 octave_throw_execution_exception (); |
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547 } |
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548 |
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549 static void |
| 721 | 550 initialize_error_handlers () |
| 551 { | |
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552 set_liboctave_error_handler (lo_error_handler); |
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553 set_liboctave_error_with_id_handler (lo_error_with_id_handler); |
| 3325 | 554 set_liboctave_warning_handler (warning); |
| 5781 | 555 set_liboctave_warning_with_id_handler (warning_with_id); |
| 721 | 556 } |
| 557 | |
| 1410 | 558 // What happens on --traditional. |
| 559 | |
| 560 static void | |
| 561 maximum_braindamage (void) | |
| 562 { | |
| 5189 | 563 persist = true; |
| 564 | |
| 5794 | 565 bind_internal_variable ("PS1", ">> "); |
| 566 bind_internal_variable ("PS2", ""); | |
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567 bind_internal_variable ("allow_noninteger_range_as_index", true); |
| 5794 | 568 bind_internal_variable ("beep_on_error", true); |
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569 bind_internal_variable ("confirm_recursive_rmdir", false); |
| 5794 | 570 bind_internal_variable ("crash_dumps_octave_core", false); |
| 571 bind_internal_variable ("default_save_options", "-mat-binary"); | |
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572 bind_internal_variable ("do_braindead_shortcircuit_evaluation", true); |
| 5794 | 573 bind_internal_variable ("fixed_point_format", true); |
| 574 bind_internal_variable ("history_timestamp_format_string", | |
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575 "%%-- %D %I:%M %p --%%"); |
| 5794 | 576 bind_internal_variable ("page_screen_output", false); |
| 577 bind_internal_variable ("print_empty_dimensions", false); | |
| 5904 | 578 |
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579 disable_warning ("Octave:abbreviated-property-match"); |
| 6159 | 580 disable_warning ("Octave:fopen-file-in-path"); |
| 5904 | 581 disable_warning ("Octave:function-name-clash"); |
| 6159 | 582 disable_warning ("Octave:load-file-in-path"); |
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583 disable_warning ("Octave:possible-matlab-short-circuit-operator"); |
| 1410 | 584 } |
| 585 | |
| 581 | 586 // You guessed it. |
| 587 | |
| 1 | 588 int |
| 4368 | 589 octave_main (int argc, char **argv, int embedded) |
| 1 | 590 { |
| 3019 | 591 octave_env::set_program_name (argv[0]); |
| 592 | |
| 5780 | 593 octave_program_invocation_name = octave_env::get_program_invocation_name (); |
| 594 octave_program_name = octave_env::get_program_name (); | |
| 595 | |
| 2205 | 596 // The order of these calls is important. The call to |
| 2926 | 597 // install_defaults must come before install_builtins because |
| 3019 | 598 // default variable values must be available for the variables to be |
| 2205 | 599 // installed, and the call to install_builtins must come before the |
| 600 // options are processed because some command line options override | |
| 5794 | 601 // defaults by calling bind_internal_variable. |
| 721 | 602 |
| 5844 | 603 init_signals (); |
| 604 | |
| 1 | 605 sysdep_init (); |
| 606 | |
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607 octave_ieee_init (); |
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608 |
| 4159 | 609 // The idea here is to force xerbla to be referenced so that we will |
| 610 // link to our own version instead of the one provided by the BLAS | |
| 611 // library. But octave_NaN should never be -1, so we should never | |
| 612 // actually call xerbla. | |
| 613 | |
| 614 if (octave_NaN == -1) | |
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615 F77_FUNC (xerbla, XERBLA) ("octave", 13 F77_CHAR_ARG_LEN (6)); |
| 4159 | 616 |
| 721 | 617 initialize_error_handlers (); |
| 223 | 618 |
| 5794 | 619 initialize_default_warning_state (); |
| 620 | |
| 2926 | 621 install_defaults (); |
| 1 | 622 |
| 1792 | 623 initialize_pathsearch (); |
| 1744 | 624 |
| 4368 | 625 if (! embedded) |
| 626 install_signal_handlers (); | |
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627 else |
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628 quit_allowed = false; |
| 2205 | 629 |
| 630 initialize_file_io (); | |
| 631 | |
| 2375 | 632 install_types (); |
| 633 | |
| 634 install_ops (); | |
| 2205 | 635 |
| 636 install_builtins (); | |
| 637 | |
| 6938 | 638 bool forced_line_editing = false; |
| 639 | |
|
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640 bool read_history_file = true; |
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641 |
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642 while (true) |
| 1 | 643 { |
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644 int long_idx; |
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645 |
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646 int optc = getopt_long (argc, argv, short_opts, long_opts, &long_idx); |
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647 |
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648 if (optc < 0) |
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649 break; |
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650 |
| 139 | 651 switch (optc) |
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652 { |
| 11140 | 653 case '?': |
| 654 // Unrecognized option. getopt_long already printed a | |
| 655 // message about that, so we will just print the usage string | |
| 656 // and exit. | |
| 657 usage (); | |
| 658 break; | |
| 659 | |
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660 case 'H': |
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661 read_history_file = false; |
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662 bind_internal_variable ("saving_history", false); |
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663 break; |
| 3180 | 664 |
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665 case 'V': |
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666 verbose_flag = true; |
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667 break; |
| 793 | 668 |
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669 case 'd': |
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670 // This is the same as yydebug in parse.y. |
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671 octave_debug++; |
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672 break; |
| 777 | 673 |
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674 case 'f': |
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675 read_init_files = false; |
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676 read_site_files = false; |
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677 break; |
| 777 | 678 |
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679 case 'h': |
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680 verbose_usage (); |
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681 break; |
| 777 | 682 |
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683 case 'i': |
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684 forced_interactive = true; |
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685 break; |
| 777 | 686 |
|
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687 case 'p': |
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688 if (optarg) |
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689 load_path::set_command_line_path (optarg); |
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690 break; |
| 777 | 691 |
|
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692 case 'q': |
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693 inhibit_startup_message = true; |
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694 break; |
| 777 | 695 |
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696 case 'x': |
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697 { |
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698 double tmp = (ECHO_SCRIPTS | ECHO_FUNCTIONS | ECHO_CMD_LINE); |
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699 bind_internal_variable ("echo_executing_commands", tmp); |
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700 } |
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701 break; |
| 777 | 702 |
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703 case 'v': |
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704 print_version_and_exit (); |
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705 break; |
| 777 | 706 |
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707 case DOC_CACHE_FILE_OPTION: |
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708 if (optarg) |
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709 bind_internal_variable ("doc_cache_file", optarg); |
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710 break; |
| 8861 | 711 |
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712 case EVAL_OPTION: |
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713 if (optarg) |
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714 { |
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715 if (code_to_eval.empty ()) |
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716 code_to_eval = optarg; |
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717 else |
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718 code_to_eval += std::string (" ") + optarg; |
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719 } |
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720 break; |
| 5189 | 721 |
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722 case EXEC_PATH_OPTION: |
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723 if (optarg) |
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724 set_exec_path (optarg); |
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725 break; |
| 5814 | 726 |
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727 case IMAGE_PATH_OPTION: |
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728 if (optarg) |
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729 set_image_path (optarg); |
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730 break; |
| 1613 | 731 |
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732 case INFO_FILE_OPTION: |
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733 if (optarg) |
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734 bind_internal_variable ("info_file", optarg); |
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735 break; |
| 777 | 736 |
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737 case INFO_PROG_OPTION: |
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738 if (optarg) |
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739 bind_internal_variable ("info_program", optarg); |
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740 break; |
| 1613 | 741 |
|
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742 case LINE_EDITING_OPTION: |
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743 forced_line_editing = true; |
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744 break; |
| 6938 | 745 |
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746 case NO_INIT_FILE_OPTION: |
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747 read_init_files = false; |
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748 break; |
| 2239 | 749 |
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750 case NO_INIT_PATH_OPTION: |
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751 set_initial_path = false; |
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752 break; |
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753 |
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754 case NO_LINE_EDITING_OPTION: |
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755 line_editing = false; |
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756 break; |
| 2239 | 757 |
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758 case NO_SITE_FILE_OPTION: |
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759 read_site_files = 0; |
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760 break; |
| 1821 | 761 |
|
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762 case NO_WINDOW_SYSTEM_OPTION: |
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763 display_info::no_window_system (); |
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764 break; |
|
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765 |
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766 case PERSIST_OPTION: |
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767 persist = true; |
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768 break; |
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769 |
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770 case TRADITIONAL_OPTION: |
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771 traditional = true; |
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772 break; |
| 1410 | 773 |
|
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774 default: |
| 11140 | 775 // getopt_long should print a message about unrecognized |
| 776 // options and return '?', which is handled above. So if we | |
| 777 // end up here, it is because there was an option but we | |
| 778 // forgot to handle it. That should be fatal. | |
| 779 panic_impossible (); | |
|
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780 break; |
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781 } |
| 1 | 782 } |
| 783 | |
| 2077 | 784 // Make sure we clean up when we exit. Also allow users to register |
| 785 // functions. If we don't have atexit or on_exit, we're going to | |
| 786 // leave some junk files around if we exit abnormally. | |
| 787 | |
| 788 atexit (do_octave_atexit); | |
| 1 | 789 |
|
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790 // Is input coming from a terminal? If so, we are probably |
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791 // interactive. |
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792 |
|
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793 // If stdin is not a tty, then we are reading commands from a pipe or |
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794 // a redirected file. |
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795 stdin_is_tty = isatty (fileno (stdin)); |
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796 |
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797 interactive = (! embedded && stdin_is_tty && isatty (fileno (stdout))); |
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798 |
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799 if (! interactive && ! forced_line_editing) |
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800 line_editing = false; |
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801 |
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802 // Force default line editor if we don't want readline editing. |
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803 if (! line_editing) |
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804 command_editor::force_default_editor (); |
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805 |
| 1358 | 806 // These can come after command line args since none of them set any |
| 807 // defaults that might be changed by command line options. | |
| 581 | 808 |
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809 if (line_editing) |
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810 initialize_command_input (); |
| 315 | 811 |
| 578 | 812 if (! inhibit_startup_message) |
| 3538 | 813 std::cout << OCTAVE_STARTUP_MESSAGE "\n" << std::endl; |
| 578 | 814 |
| 1410 | 815 if (traditional) |
| 816 maximum_braindamage (); | |
| 817 | |
| 4217 | 818 octave_interpreter_ready = true; |
| 819 | |
| 5654 | 820 initialize_version_info (); |
| 821 | |
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822 // Make all command-line arguments available to startup files, |
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823 // including PKG_ADD files. |
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824 |
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825 intern_argv (argc, argv); |
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826 |
| 6365 | 827 load_path::initialize (set_initial_path); |
| 4217 | 828 |
| 2239 | 829 execute_startup_files (); |
| 1651 | 830 |
|
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831 initialize_history (read_history_file); |
| 1 | 832 |
| 578 | 833 if (! inhibit_startup_message && reading_startup_message_printed) |
| 3538 | 834 std::cout << std::endl; |
| 578 | 835 |
| 1358 | 836 // If there is an extra argument, see if it names a file to read. |
| 837 // Additional arguments are taken as command line options for the | |
| 838 // script. | |
| 1 | 839 |
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840 int last_arg_idx = optind; |
| 3019 | 841 |
| 1817 | 842 int remaining_args = argc - last_arg_idx; |
| 3019 | 843 |
| 5189 | 844 if (! code_to_eval.empty ()) |
| 149 | 845 { |
| 5189 | 846 int parse_status = execute_eval_option_code (code_to_eval); |
| 847 | |
| 5242 | 848 if (! (persist || remaining_args > 0)) |
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849 clean_up_and_exit (parse_status || error_state ? 1 : 0); |
| 1 | 850 } |
| 851 | |
| 5189 | 852 if (remaining_args > 0) |
| 853 { | |
| 854 // If we are running an executable script (#! /bin/octave) then | |
| 855 // we should only see the args passed to the script. | |
| 856 | |
| 857 intern_argv (remaining_args, argv+last_arg_idx); | |
| 858 | |
| 859 execute_command_line_file (argv[last_arg_idx]); | |
| 860 | |
| 861 if (! persist) | |
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862 clean_up_and_exit (error_state ? 1 : 0); |
| 5189 | 863 } |
| 864 | |
| 865 // Avoid counting commands executed from startup files. | |
| 866 | |
| 867 command_editor::reset_current_command_number (1); | |
| 868 | |
| 869 // Now argv should have the full set of args. | |
| 870 intern_argv (argc, argv); | |
| 871 | |
| 872 if (! embedded) | |
| 873 switch_to_buffer (create_buffer (get_input_from_stdin ())); | |
| 874 | |
| 1358 | 875 // Force input to be echoed if not really interactive, but the user |
| 876 // has forced interactive behavior. | |
| 1 | 877 |
| 1907 | 878 if (! interactive && forced_interactive) |
| 287 | 879 { |
| 2926 | 880 command_editor::blink_matching_paren (false); |
| 1588 | 881 |
| 5775 | 882 // FIXME -- is this the right thing to do? |
| 1588 | 883 |
| 5794 | 884 bind_internal_variable ("echo_executing_commands", ECHO_CMD_LINE); |
| 287 | 885 } |
| 1 | 886 |
| 4368 | 887 if (embedded) |
| 5502 | 888 { |
| 5775 | 889 // FIXME -- do we need to do any cleanup here before |
| 5502 | 890 // returning? If we don't, what will happen to Octave functions |
| 891 // that have been registered to execute with atexit, for example? | |
| 892 | |
| 893 return 1; | |
| 894 } | |
| 4368 | 895 |
| 5189 | 896 int retval = main_loop (); |
| 1 | 897 |
| 1005 | 898 if (retval == 1 && ! error_state) |
| 899 retval = 0; | |
| 900 | |
| 1 | 901 clean_up_and_exit (retval); |
| 4247 | 902 |
| 903 return 0; | |
| 1 | 904 } |
| 905 | |
| 5780 | 906 DEFUN (argv, args, , |
| 907 "-*- texinfo -*-\n\ | |
| 908 @deftypefn {Built-in Function} {} argv ()\n\ | |
| 909 Return the command line arguments passed to Octave. For example,\n\ | |
| 910 if you invoked Octave using the command\n\ | |
| 911 \n\ | |
| 912 @example\n\ | |
| 913 octave --no-line-editing --silent\n\ | |
| 914 @end example\n\ | |
| 915 \n\ | |
| 916 @noindent\n\ | |
| 917 @code{argv} would return a cell array of strings with the elements\n\ | |
| 10840 | 918 @option{--no-line-editing} and @option{--silent}.\n\ |
| 5780 | 919 \n\ |
| 920 If you write an executable Octave script, @code{argv} will return the\n\ | |
| 921 list of arguments passed to the script. @xref{Executable Octave Programs},\n\ | |
| 922 for an example of how to create an executable Octave script.\n\ | |
| 923 @end deftypefn") | |
| 924 { | |
| 925 octave_value retval; | |
| 926 | |
| 927 if (args.length () == 0) | |
| 928 retval = Cell (octave_argv); | |
| 929 else | |
| 5823 | 930 print_usage (); |
| 5780 | 931 |
| 932 return retval; | |
| 933 } | |
| 934 | |
| 935 DEFUN (program_invocation_name, args, , | |
| 936 "-*- texinfo -*-\n\ | |
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937 @deftypefn {Built-in Function} {} program_invocation_name ()\n\ |
| 5780 | 938 Return the name that was typed at the shell prompt to run 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\ | |
| 942 name of the script. @xref{Executable Octave Programs}, for an example of\n\ | |
| 943 how to create an executable Octave script.\n\ | |
| 944 @seealso{program_name}\n\ | |
| 945 @end deftypefn") | |
| 946 { | |
| 947 octave_value retval; | |
| 948 | |
| 949 if (args.length () == 0) | |
| 950 retval = octave_program_invocation_name; | |
| 951 else | |
| 5823 | 952 print_usage (); |
| 5780 | 953 |
| 954 return retval; | |
| 955 } | |
| 956 | |
| 957 DEFUN (program_name, args, , | |
| 958 "-*- texinfo -*-\n\ | |
| 959 @deftypefn {Built-in Function} {} program_name ()\n\ | |
|
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960 Return the last component of the value returned by\n\ |
| 5780 | 961 @code{program_invocation_name}.\n\ |
| 962 @seealso{program_invocation_name}\n\ | |
| 963 @end deftypefn") | |
| 964 { | |
| 965 octave_value retval; | |
| 966 | |
| 967 if (args.length () == 0) | |
| 968 retval = octave_program_name; | |
| 969 else | |
| 5823 | 970 print_usage (); |
| 5780 | 971 |
| 972 return retval; | |
| 973 } |