Mercurial > octave-nkf
annotate src/octave.cc @ 10485:b4e14e628fc9
Truncate argv() for scripts used without command line parameters. Bug #29423
| author | Judd Storrs <jstorrs@gmail.com> |
|---|---|
| date | Fri, 02 Apr 2010 13:28:02 -0400 |
| parents | 9c4daf174387 |
| children | 1834132fb50b |
| 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" |
| 1670 | 62 #include "toplev.h" |
| 1 | 63 #include "parse.h" |
| 562 | 64 #include "procstream.h" |
| 1355 | 65 #include "sighandlers.h" |
| 66 #include "sysdep.h" | |
| 2375 | 67 #include "ov.h" |
| 1 | 68 #include "unwind-prot.h" |
| 1355 | 69 #include "utils.h" |
| 70 #include "variables.h" | |
| 2492 | 71 #include <version.h> |
| 1 | 72 |
| 4159 | 73 // Kluge. |
| 5990 | 74 extern "C" F77_RET_T |
| 75 F77_FUNC (xerbla, XERBLA) (F77_CONST_CHAR_ARG_DECL, const octave_idx_type& | |
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76 F77_CHAR_ARG_LEN_DECL); |
| 4159 | 77 |
| 2910 | 78 extern void install_builtins (void); |
| 79 | |
| 1907 | 80 // The command-line options. |
| 81 static string_vector octave_argv; | |
| 1 | 82 |
| 5780 | 83 // The name used to invoke Octave. |
| 84 static std::string | |
| 85 octave_program_invocation_name; | |
| 86 | |
| 87 // The last component of octave_program_invocation_name. | |
| 88 static std::string octave_program_name; | |
| 89 | |
| 2239 | 90 // TRUE means we read ~/.octaverc and ./.octaverc. |
| 91 // (--norc; --no-init-file; -f) | |
| 92 static bool read_init_files = true; | |
| 93 | |
| 94 // TRUE means we read the site-wide octaverc files. | |
| 95 // (--norc; --no-site-file; -f) | |
| 2240 | 96 static bool read_site_files = true; |
| 1 | 97 |
| 6365 | 98 // TRUE means we set the initial path to configured defaults. |
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99 // (--no-init-path) |
| 6365 | 100 static bool set_initial_path = true; |
| 101 | |
| 3019 | 102 // TRUE means we don't print the usual startup message. |
| 616 | 103 // (--quiet; --silent; -q) |
| 2239 | 104 static bool inhibit_startup_message = false; |
| 1 | 105 |
| 3019 | 106 // TRUE means we turn on compatibility options. |
| 1410 | 107 // (--traditional) |
| 2239 | 108 static bool traditional = false; |
| 1410 | 109 |
| 3019 | 110 // If TRUE, print verbose info in some cases. |
| 1825 | 111 // (--verbose; -V) |
| 2239 | 112 static bool verbose_flag = false; |
| 1825 | 113 |
| 1 | 114 // Usage message |
| 139 | 115 static const char *usage_string = |
| 5189 | 116 "octave [-?HVdfhiqvx] [--debug] [--echo-commands] [--eval CODE]\n\ |
| 5814 | 117 [--exec-path path] [--help] [--image-path path] [--info-file file]\n\ |
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118 [--info-program prog] [--interactive] [--line-editing]\n\ |
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119 [--no-history] [--no-init-file] [--no-init-path] [--no-line-editing]\n\ |
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120 [--no-site-file] [--no-window-system] [-p path] [--path path]\n\ |
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121 [--silent] [--traditional] [--verbose] [--version] [file]"; |
| 1 | 122 |
| 1358 | 123 // This is here so that it's more likely that the usage message and |
| 1410 | 124 // the real set of options will agree. Note: the `+' must come first |
| 125 // to prevent getopt from permuting arguments! | |
| 3180 | 126 static const char *short_opts = "+?HVdfhip:qvx"; |
| 139 | 127 |
| 5189 | 128 // The code to evaluate at startup (--eval CODE) |
| 129 static std::string code_to_eval; | |
| 130 | |
| 131 // If TRUE, don't exit after evaluating code given by --eval option. | |
| 132 static bool persist = false; | |
| 4356 | 133 |
| 1103 | 134 // Long options. See the comments in getopt.h for the meanings of the |
| 135 // fields in this structure. | |
| 8861 | 136 #define DOC_CACHE_FILE_OPTION 1 |
| 137 #define EVAL_OPTION 2 | |
| 138 #define EXEC_PATH_OPTION 3 | |
| 139 #define IMAGE_PATH_OPTION 4 | |
| 140 #define INFO_FILE_OPTION 5 | |
| 141 #define INFO_PROG_OPTION 6 | |
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142 #define LINE_EDITING_OPTION 7 |
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143 #define NO_INIT_FILE_OPTION 8 |
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144 #define NO_INIT_PATH_OPTION 9 |
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145 #define NO_LINE_EDITING_OPTION 10 |
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146 #define NO_SITE_FILE_OPTION 11 |
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147 #define NO_WINDOW_SYSTEM_OPTION 12 |
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148 #define PERSIST_OPTION 13 |
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149 #define TRADITIONAL_OPTION 14 |
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150 struct option long_opts[] = |
| 139 | 151 { |
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152 { "braindead", no_argument, 0, TRADITIONAL_OPTION }, |
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153 { "debug", no_argument, 0, 'd' }, |
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154 { "doc-cache-file", required_argument, 0, DOC_CACHE_FILE_OPTION }, |
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155 { "echo-commands", no_argument, 0, 'x' }, |
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156 { "eval", required_argument, 0, EVAL_OPTION }, |
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157 { "exec-path", required_argument, 0, EXEC_PATH_OPTION }, |
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158 { "help", no_argument, 0, 'h' }, |
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159 { "image-path", required_argument, 0, IMAGE_PATH_OPTION }, |
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160 { "info-file", required_argument, 0, INFO_FILE_OPTION }, |
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161 { "info-program", required_argument, 0, INFO_PROG_OPTION }, |
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162 { "interactive", no_argument, 0, 'i' }, |
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163 { "line-editing", no_argument, 0, LINE_EDITING_OPTION }, |
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164 { "no-history", no_argument, 0, 'H' }, |
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165 { "no-init-file", no_argument, 0, NO_INIT_FILE_OPTION }, |
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166 { "no-init-path", no_argument, 0, NO_INIT_PATH_OPTION }, |
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167 { "no-line-editing", no_argument, 0, NO_LINE_EDITING_OPTION }, |
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168 { "no-site-file", no_argument, 0, NO_SITE_FILE_OPTION }, |
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169 { "no-window-system", no_argument, 0, NO_WINDOW_SYSTEM_OPTION }, |
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170 { "norc", no_argument, 0, 'f' }, |
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171 { "path", required_argument, 0, 'p' }, |
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172 { "persist", no_argument, 0, PERSIST_OPTION }, |
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173 { "quiet", no_argument, 0, 'q' }, |
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174 { "silent", no_argument, 0, 'q' }, |
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175 { "traditional", no_argument, 0, TRADITIONAL_OPTION }, |
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176 { "verbose", no_argument, 0, 'V' }, |
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177 { "version", no_argument, 0, 'v' }, |
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178 { 0, 0, 0, 0 } |
| 139 | 179 }; |
| 1 | 180 |
| 1355 | 181 // Store the command-line options for later use. |
| 182 | |
| 183 static void | |
| 184 intern_argv (int argc, char **argv) | |
| 185 { | |
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186 assert (symbol_table::at_top_level ()); |
| 4892 | 187 |
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188 symbol_table::varref (".nargin.") = argc - 1; |
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189 |
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190 symbol_table::mark_hidden (".nargin."); |
| 3195 | 191 |
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192 if (argc > 0) |
| 1355 | 193 { |
| 7336 | 194 octave_argv.resize (argc - 1); |
| 3933 | 195 |
| 2495 | 196 // Skip program name in argv. |
| 3933 | 197 int i = argc; |
| 198 while (--i > 0) | |
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199 octave_argv[i-1] = *(argv+i); |
| 1355 | 200 } |
| 201 } | |
| 202 | |
| 1792 | 203 static void |
| 204 initialize_pathsearch (void) | |
| 205 { | |
| 206 // This may seem odd, but doing it this way means that we don't have | |
| 207 // to modify the kpathsea library... | |
| 208 | |
| 3523 | 209 std::string odb = octave_env::getenv ("OCTAVE_DB_PATH"); |
| 3141 | 210 |
| 211 // For backward compatibility. | |
| 1792 | 212 |
| 2926 | 213 if (odb.empty ()) |
| 3141 | 214 odb = octave_env::getenv ("OCTAVE_DB_DIR"); |
| 1792 | 215 |
| 3141 | 216 if (odb.empty ()) |
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217 odb = Vdata_dir + file_ops::dir_sep_str () + "octave:" |
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218 + Vlibexec_dir + file_ops::dir_sep_str () + "octave"; |
| 1792 | 219 } |
| 220 | |
| 5654 | 221 DEFUN (__version_info__, args, , |
| 222 "-*- texinfo -*-\n\ | |
| 6678 | 223 @deftypefn {Built-in Function} {retval =} __version_info__ (@var{name}, @var{version}, @var{release}, @var{date})\n\ |
| 6945 | 224 Undocumented internal function.\n\ |
| 5654 | 225 @end deftypefn") |
| 226 { | |
| 227 octave_value retval; | |
| 228 | |
| 229 static Octave_map vinfo; | |
| 230 | |
| 231 int nargin = args.length (); | |
| 232 | |
| 5658 | 233 if (nargin == 4) |
| 5654 | 234 { |
| 6639 | 235 if (vinfo.nfields () == 0) |
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236 { |
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237 vinfo.assign ("Name", args (0)); |
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238 vinfo.assign ("Version", args (1)); |
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239 vinfo.assign ("Release", args (2)); |
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240 vinfo.assign ("Date", args (3)); |
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241 } |
| 5781 | 242 else |
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243 { |
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244 octave_idx_type n = vinfo.numel () + 1; |
| 5654 | 245 |
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246 vinfo.resize (dim_vector (n, 1)); |
| 5781 | 247 |
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248 octave_value idx (n); |
| 5781 | 249 |
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250 vinfo.assign (idx, "Name", Cell (octave_value (args (0)))); |
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251 vinfo.assign (idx, "Version", Cell (octave_value (args (1)))); |
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252 vinfo.assign (idx, "Release", Cell (octave_value (args (2)))); |
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253 vinfo.assign (idx, "Date", Cell (octave_value (args (3)))); |
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254 } |
| 5654 | 255 } |
| 256 else if (nargin == 0) | |
| 257 retval = vinfo; | |
| 258 else | |
| 5823 | 259 print_usage (); |
| 5654 | 260 |
| 261 return retval; | |
| 262 } | |
| 263 | |
| 264 static void | |
| 265 initialize_version_info (void) | |
| 266 { | |
| 267 octave_value_list args; | |
| 268 | |
| 5658 | 269 args(3) = OCTAVE_RELEASE_DATE; |
| 270 args(2) = OCTAVE_RELEASE; | |
| 5654 | 271 args(1) = OCTAVE_VERSION; |
| 272 args(0) = "GNU Octave"; | |
| 273 | |
| 274 F__version_info__ (args, 0); | |
| 275 } | |
| 276 | |
| 581 | 277 // Initialize by reading startup files. |
| 278 | |
| 1 | 279 static void |
| 280 execute_startup_files (void) | |
| 281 { | |
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282 unwind_protect frame; |
| 315 | 283 |
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284 frame.protect_var (input_from_startup_file); |
| 1651 | 285 |
| 3019 | 286 input_from_startup_file = true; |
| 315 | 287 |
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288 std::string context; |
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289 |
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290 bool verbose = (verbose_flag && ! inhibit_startup_message); |
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291 |
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292 bool require_file = false; |
| 578 | 293 |
| 2239 | 294 if (read_site_files) |
| 1 | 295 { |
| 2239 | 296 // Execute commands from the site-wide configuration file. |
| 297 // First from the file $(prefix)/lib/octave/site/m/octaverc | |
| 298 // (if it exists), then from the file | |
| 3597 | 299 // $(prefix)/share/octave/$(version)/m/octaverc (if it exists). |
| 1755 | 300 |
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301 source_file (Vlocal_site_defaults_file, context, verbose, require_file); |
| 1755 | 302 |
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303 source_file (Vsite_defaults_file, context, verbose, require_file); |
| 1 | 304 } |
| 305 | |
| 2239 | 306 if (read_init_files) |
| 307 { | |
| 2512 | 308 // Try to execute commands from $HOME/$OCTAVE_INITFILE and |
| 309 // $OCTAVE_INITFILE. If $OCTAVE_INITFILE is not set, .octaverc | |
| 310 // is assumed. | |
| 2239 | 311 |
| 4804 | 312 bool home_rc_already_executed = false; |
| 2512 | 313 |
| 3523 | 314 std::string initfile = octave_env::getenv ("OCTAVE_INITFILE"); |
| 2512 | 315 |
| 2926 | 316 if (initfile.empty ()) |
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317 initfile = ".octaverc"; |
| 2512 | 318 |
| 3523 | 319 std::string home_dir = octave_env::get_home_directory (); |
| 2926 | 320 |
| 4804 | 321 std::string home_rc = octave_env::make_absolute (initfile, home_dir); |
| 322 | |
| 323 std::string local_rc; | |
| 2239 | 324 |
| 5781 | 325 if (! home_rc.empty ()) |
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326 { |
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327 source_file (home_rc, context, verbose, require_file); |
| 2239 | 328 |
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329 // Names alone are not enough. |
| 2239 | 330 |
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331 file_stat fs_home_rc (home_rc); |
| 2239 | 332 |
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333 if (fs_home_rc) |
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334 { |
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335 // We want to check for curr_dir after executing home_rc |
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336 // because doing that may change the working directory. |
| 4804 | 337 |
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338 local_rc = octave_env::make_absolute (initfile); |
| 4804 | 339 |
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340 home_rc_already_executed = same_file (home_rc, local_rc); |
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341 } |
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342 } |
| 2239 | 343 |
| 344 if (! home_rc_already_executed) | |
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345 { |
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346 if (local_rc.empty ()) |
| 10250 | 347 local_rc = octave_env::make_absolute (initfile); |
| 4804 | 348 |
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349 source_file (local_rc, context, verbose, require_file); |
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350 } |
| 2239 | 351 } |
| 1 | 352 } |
| 353 | |
| 5189 | 354 static int |
| 355 execute_eval_option_code (const std::string& code) | |
| 356 { | |
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357 unwind_protect frame; |
| 5189 | 358 |
| 7202 | 359 octave_save_signal_mask (); |
| 360 | |
| 361 can_interrupt = true; | |
| 362 | |
| 363 octave_signal_hook = octave_signal_handler; | |
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364 octave_interrupt_hook = 0; |
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365 octave_bad_alloc_hook = 0; |
| 7202 | 366 |
| 367 octave_catch_interrupts (); | |
| 368 | |
| 369 octave_initialized = true; | |
| 370 | |
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371 frame.protect_var (interactive); |
| 5189 | 372 |
| 373 interactive = false; | |
| 374 | |
| 375 int parse_status = 0; | |
| 376 | |
| 6487 | 377 try |
| 378 { | |
| 379 eval_string (code, false, parse_status, 0); | |
| 380 } | |
| 7202 | 381 catch (octave_interrupt_exception) |
| 382 { | |
| 383 recover_from_exception (); | |
| 384 octave_stdout << "\n"; | |
| 9383 | 385 if (quitting_gracefully) |
| 386 clean_up_and_exit (exit_status); | |
| 7202 | 387 } |
| 6487 | 388 catch (std::bad_alloc) |
| 389 { | |
| 6680 | 390 std::cerr << "error: memory exhausted or requested size too large for range of Octave's index type -- eval failed" |
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391 << std::endl; |
| 6487 | 392 } |
| 5189 | 393 |
| 394 return parse_status; | |
| 395 } | |
| 396 | |
| 397 static void | |
| 398 execute_command_line_file (const std::string& fname) | |
| 399 { | |
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400 unwind_protect frame; |
| 5189 | 401 |
| 7202 | 402 octave_save_signal_mask (); |
| 403 | |
| 404 can_interrupt = true; | |
| 405 | |
| 406 octave_signal_hook = octave_signal_handler; | |
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407 octave_interrupt_hook = 0; |
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408 octave_bad_alloc_hook = 0; |
| 7202 | 409 |
| 410 octave_catch_interrupts (); | |
| 411 | |
| 412 octave_initialized = true; | |
| 413 | |
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414 frame.protect_var (interactive); |
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415 frame.protect_var (reading_script_file); |
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416 frame.protect_var (input_from_command_line_file); |
| 5189 | 417 |
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418 frame.protect_var (curr_fcn_file_name); |
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419 frame.protect_var (curr_fcn_file_full_name); |
| 5189 | 420 |
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421 frame.protect_var (octave_program_invocation_name); |
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422 frame.protect_var (octave_program_name); |
| 5189 | 423 |
| 424 interactive = false; | |
| 425 reading_script_file = true; | |
| 426 input_from_command_line_file = true; | |
| 427 | |
| 428 curr_fcn_file_name = fname; | |
| 429 curr_fcn_file_full_name = curr_fcn_file_name; | |
| 430 | |
| 5780 | 431 octave_program_invocation_name = curr_fcn_file_name; |
| 5189 | 432 |
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433 size_t pos = curr_fcn_file_name.find_last_of (file_ops::dir_sep_chars ()); |
| 5189 | 434 |
| 8021 | 435 std::string tmp = (pos != std::string::npos) |
| 5189 | 436 ? curr_fcn_file_name.substr (pos+1) : curr_fcn_file_name; |
| 437 | |
| 5780 | 438 octave_program_name = tmp; |
| 5189 | 439 |
| 6504 | 440 try |
| 441 { | |
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442 std::string context; |
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443 bool verbose = false; |
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444 bool require_file = true; |
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445 |
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446 source_file (fname, context, verbose, require_file, "octave"); |
| 6504 | 447 } |
| 7202 | 448 catch (octave_interrupt_exception) |
| 449 { | |
| 450 recover_from_exception (); | |
| 451 octave_stdout << "\n"; | |
| 9383 | 452 if (quitting_gracefully) |
| 453 clean_up_and_exit (exit_status); | |
| 7202 | 454 } |
| 6504 | 455 catch (std::bad_alloc) |
| 456 { | |
| 6680 | 457 std::cerr << "error: memory exhausted or requested size too large for range of Octave's index type -- execution of " |
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458 << fname << " failed" << std::endl; |
| 6504 | 459 } |
| 5189 | 460 } |
| 461 | |
| 581 | 462 // Usage message with extra help. |
| 463 | |
| 1 | 464 static void |
| 465 verbose_usage (void) | |
| 466 { | |
| 3922 | 467 std::cout << OCTAVE_NAME_VERSION_COPYRIGHT_COPYING_AND_WARRANTY "\n\ |
| 1613 | 468 \n\ |
| 469 Usage: octave [options]\n\ | |
| 470 \n\ | |
| 471 Options:\n\ | |
| 1119 | 472 \n\ |
| 3180 | 473 --debug, -d Enter parser debugging mode.\n\ |
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474 --doc-cache-file FILE Use doc cache file FILE.\n\ |
| 3180 | 475 --echo-commands, -x Echo commands as they are executed.\n\ |
| 5191 | 476 --eval CODE Evaluate CODE. Exit when done unless --persist.\n\ |
| 1613 | 477 --exec-path PATH Set path for executing subprograms.\n\ |
| 3180 | 478 --help, -h, -? Print short help message and exit.\n\ |
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479 --image-path PATH Add PATH to head of image search path.\n\ |
| 1613 | 480 --info-file FILE Use top-level info file FILE.\n\ |
| 481 --info-program PROGRAM Use PROGRAM for reading info files.\n\ | |
| 3180 | 482 --interactive, -i Force interactive behavior.\n\ |
| 6938 | 483 --line-editing Force readline use for command-line editing.\n\ |
| 3180 | 484 --no-history, -H Don't save commands to the history list\n\ |
| 2470 | 485 --no-init-file Don't read the ~/.octaverc or .octaverc files.\n\ |
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486 --no-init-path Don't initialize function search path.\n\ |
| 2212 | 487 --no-line-editing Don't use readline for command-line editing.\n\ |
| 2470 | 488 --no-site-file Don't read the site-wide octaverc file.\n\ |
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489 --no-window-system Disable window system, including graphics.\n\ |
| 3238 | 490 --norc, -f Don't read any initialization files.\n\ |
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491 --path PATH, -p PATH Add PATH to head of function search path.\n\ |
| 5189 | 492 --persist Go interactive after --eval or reading from FILE.\n\ |
| 3180 | 493 --silent, -q Don't print message at startup.\n\ |
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494 --traditional Set variables for closer MATLAB compatibility.\n\ |
| 3180 | 495 --verbose, -V Enable verbose output in some cases.\n\ |
| 496 --version, -v Print version number and exit.\n\ | |
| 1119 | 497 \n\ |
| 5190 | 498 FILE Execute commands from FILE. Exit when done\n\ |
| 5191 | 499 unless --persist is also specified.\n\ |
| 4829 | 500 \n" |
| 501 OCTAVE_WWW_STATEMENT "\n\ | |
| 4356 | 502 \n" |
| 503 OCTAVE_CONTRIB_STATEMENT "\n\ | |
| 504 \n" | |
| 505 OCTAVE_BUGS_STATEMENT "\n"; | |
| 285 | 506 |
| 613 | 507 exit (0); |
| 1 | 508 } |
| 509 | |
| 581 | 510 // Terse usage messsage. |
| 511 | |
| 1 | 512 static void |
| 513 usage (void) | |
| 514 { | |
| 3531 | 515 std::cerr << "usage: " << usage_string << "\n"; |
| 1 | 516 exit (1); |
| 517 } | |
| 518 | |
| 519 static void | |
| 520 print_version_and_exit (void) | |
| 521 { | |
| 3922 | 522 std::cout << OCTAVE_NAME_VERSION_COPYRIGHT_COPYING_WARRANTY_AND_BUGS "\n"; |
| 1 | 523 exit (0); |
| 524 } | |
| 525 | |
| 721 | 526 static void |
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527 lo_error_handler (const char *fmt, ...) |
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528 { |
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529 va_list args; |
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530 va_start (args, fmt); |
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531 verror_with_cfn (fmt, args); |
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532 va_end (args); |
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533 |
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534 octave_throw_execution_exception (); |
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535 } |
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536 |
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537 static void |
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538 lo_error_with_id_handler (const char *id, const char *fmt, ...) |
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539 { |
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540 va_list args; |
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541 va_start (args, fmt); |
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542 verror_with_id_cfn (id, fmt, args); |
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543 va_end (args); |
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544 |
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545 octave_throw_execution_exception (); |
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546 } |
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547 |
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548 static void |
| 721 | 549 initialize_error_handlers () |
| 550 { | |
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551 set_liboctave_error_handler (lo_error_handler); |
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552 set_liboctave_error_with_id_handler (lo_error_with_id_handler); |
| 3325 | 553 set_liboctave_warning_handler (warning); |
| 5781 | 554 set_liboctave_warning_with_id_handler (warning_with_id); |
| 721 | 555 } |
| 556 | |
| 1410 | 557 // What happens on --traditional. |
| 558 | |
| 559 static void | |
| 560 maximum_braindamage (void) | |
| 561 { | |
| 5189 | 562 persist = true; |
| 563 | |
| 5794 | 564 bind_internal_variable ("PS1", ">> "); |
| 565 bind_internal_variable ("PS2", ""); | |
| 566 bind_internal_variable ("beep_on_error", true); | |
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567 bind_internal_variable ("confirm_recursive_rmdir", false); |
| 5794 | 568 bind_internal_variable ("crash_dumps_octave_core", false); |
| 569 bind_internal_variable ("default_save_options", "-mat-binary"); | |
| 570 bind_internal_variable ("fixed_point_format", true); | |
| 571 bind_internal_variable ("history_timestamp_format_string", | |
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572 "%%-- %D %I:%M %p --%%"); |
| 5794 | 573 bind_internal_variable ("page_screen_output", false); |
| 574 bind_internal_variable ("print_empty_dimensions", false); | |
| 5904 | 575 |
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576 disable_warning ("Octave:abbreviated-property-match"); |
| 6159 | 577 disable_warning ("Octave:fopen-file-in-path"); |
| 5904 | 578 disable_warning ("Octave:function-name-clash"); |
| 6159 | 579 disable_warning ("Octave:load-file-in-path"); |
| 1410 | 580 } |
| 581 | |
| 581 | 582 // You guessed it. |
| 583 | |
| 1 | 584 int |
| 4368 | 585 octave_main (int argc, char **argv, int embedded) |
| 1 | 586 { |
| 3019 | 587 octave_env::set_program_name (argv[0]); |
| 588 | |
| 5780 | 589 octave_program_invocation_name = octave_env::get_program_invocation_name (); |
| 590 octave_program_name = octave_env::get_program_name (); | |
| 591 | |
| 2205 | 592 // The order of these calls is important. The call to |
| 2926 | 593 // install_defaults must come before install_builtins because |
| 3019 | 594 // default variable values must be available for the variables to be |
| 2205 | 595 // installed, and the call to install_builtins must come before the |
| 596 // options are processed because some command line options override | |
| 5794 | 597 // defaults by calling bind_internal_variable. |
| 721 | 598 |
| 5844 | 599 init_signals (); |
| 600 | |
| 1 | 601 sysdep_init (); |
| 602 | |
| 4159 | 603 // The idea here is to force xerbla to be referenced so that we will |
| 604 // link to our own version instead of the one provided by the BLAS | |
| 605 // library. But octave_NaN should never be -1, so we should never | |
| 606 // actually call xerbla. | |
| 607 | |
| 608 if (octave_NaN == -1) | |
| 609 F77_FUNC (xerbla, XERBLA) ("octave", 13, 6L); | |
| 610 | |
| 721 | 611 initialize_error_handlers (); |
| 223 | 612 |
| 5794 | 613 initialize_default_warning_state (); |
| 614 | |
| 2926 | 615 install_defaults (); |
| 1 | 616 |
| 1792 | 617 initialize_pathsearch (); |
| 1744 | 618 |
| 4368 | 619 if (! embedded) |
| 620 install_signal_handlers (); | |
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621 else |
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622 quit_allowed = false; |
| 2205 | 623 |
| 624 initialize_file_io (); | |
| 625 | |
| 2375 | 626 install_types (); |
| 627 | |
| 628 install_ops (); | |
| 2205 | 629 |
| 630 install_builtins (); | |
| 631 | |
| 6938 | 632 bool forced_line_editing = false; |
| 633 | |
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634 bool read_history_file = true; |
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635 |
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636 while (true) |
| 1 | 637 { |
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638 int long_idx; |
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639 |
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640 int optc = getopt_long (argc, argv, short_opts, long_opts, &long_idx); |
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641 |
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642 if (optc < 0) |
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643 break; |
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644 |
| 139 | 645 switch (optc) |
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646 { |
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647 case 'H': |
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648 read_history_file = false; |
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649 bind_internal_variable ("saving_history", false); |
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650 break; |
| 3180 | 651 |
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652 case 'V': |
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653 verbose_flag = true; |
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654 break; |
| 793 | 655 |
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656 case 'd': |
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657 // This is the same as yydebug in parse.y. |
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658 octave_debug++; |
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659 break; |
| 777 | 660 |
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661 case 'f': |
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662 read_init_files = false; |
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663 read_site_files = false; |
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664 break; |
| 777 | 665 |
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666 case 'h': |
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667 case '?': |
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668 verbose_usage (); |
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669 break; |
| 777 | 670 |
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671 case 'i': |
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672 forced_interactive = true; |
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673 break; |
| 777 | 674 |
|
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675 case 'p': |
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676 if (optarg) |
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677 load_path::set_command_line_path (optarg); |
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678 break; |
| 777 | 679 |
|
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680 case 'q': |
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681 inhibit_startup_message = true; |
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682 break; |
| 777 | 683 |
|
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684 case 'x': |
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685 { |
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686 double tmp = (ECHO_SCRIPTS | ECHO_FUNCTIONS | ECHO_CMD_LINE); |
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687 bind_internal_variable ("echo_executing_commands", tmp); |
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688 } |
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689 break; |
| 777 | 690 |
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691 case 'v': |
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692 print_version_and_exit (); |
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693 break; |
| 777 | 694 |
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695 case DOC_CACHE_FILE_OPTION: |
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696 if (optarg) |
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697 bind_internal_variable ("doc_cache_file", optarg); |
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698 break; |
| 8861 | 699 |
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700 case EVAL_OPTION: |
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701 if (optarg) |
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702 { |
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703 if (code_to_eval.empty ()) |
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704 code_to_eval = optarg; |
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705 else |
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706 code_to_eval += std::string (" ") + optarg; |
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707 } |
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708 break; |
| 5189 | 709 |
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710 case EXEC_PATH_OPTION: |
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711 if (optarg) |
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712 set_exec_path (optarg); |
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713 break; |
| 5814 | 714 |
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715 case IMAGE_PATH_OPTION: |
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716 if (optarg) |
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717 set_image_path (optarg); |
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718 break; |
| 1613 | 719 |
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720 case INFO_FILE_OPTION: |
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721 if (optarg) |
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722 bind_internal_variable ("info_file", optarg); |
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723 break; |
| 777 | 724 |
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725 case INFO_PROG_OPTION: |
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726 if (optarg) |
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727 bind_internal_variable ("info_program", optarg); |
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728 break; |
| 1613 | 729 |
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730 case LINE_EDITING_OPTION: |
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731 forced_line_editing = true; |
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732 break; |
| 6938 | 733 |
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734 case NO_INIT_FILE_OPTION: |
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735 read_init_files = false; |
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736 break; |
| 2239 | 737 |
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738 case NO_INIT_PATH_OPTION: |
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739 set_initial_path = false; |
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740 break; |
|
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741 |
|
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742 case NO_LINE_EDITING_OPTION: |
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743 line_editing = false; |
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744 break; |
| 2239 | 745 |
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746 case NO_SITE_FILE_OPTION: |
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747 read_site_files = 0; |
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748 break; |
| 1821 | 749 |
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750 case NO_WINDOW_SYSTEM_OPTION: |
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751 display_info::no_window_system (); |
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752 break; |
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753 |
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754 case PERSIST_OPTION: |
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755 persist = true; |
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756 break; |
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757 |
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758 case TRADITIONAL_OPTION: |
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759 traditional = true; |
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760 break; |
| 1410 | 761 |
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762 default: |
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763 usage (); |
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764 break; |
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765 } |
| 1 | 766 } |
| 767 | |
| 2077 | 768 // Make sure we clean up when we exit. Also allow users to register |
| 769 // functions. If we don't have atexit or on_exit, we're going to | |
| 770 // leave some junk files around if we exit abnormally. | |
| 771 | |
| 772 atexit (do_octave_atexit); | |
| 1 | 773 |
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774 // Is input coming from a terminal? If so, we are probably |
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775 // interactive. |
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776 |
|
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777 // If stdin is not a tty, then we are reading commands from a pipe or |
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778 // a redirected file. |
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779 stdin_is_tty = isatty (fileno (stdin)); |
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780 |
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781 interactive = (! embedded && stdin_is_tty && isatty (fileno (stdout))); |
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782 |
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783 if (! interactive && ! forced_line_editing) |
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784 line_editing = false; |
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785 |
|
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786 // Force default line editor if we don't want readline editing. |
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787 if (! line_editing) |
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788 command_editor::force_default_editor (); |
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789 |
| 1358 | 790 // These can come after command line args since none of them set any |
| 791 // defaults that might be changed by command line options. | |
| 581 | 792 |
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793 if (line_editing) |
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794 initialize_command_input (); |
| 315 | 795 |
| 578 | 796 if (! inhibit_startup_message) |
| 3538 | 797 std::cout << OCTAVE_STARTUP_MESSAGE "\n" << std::endl; |
| 578 | 798 |
| 1410 | 799 if (traditional) |
| 800 maximum_braindamage (); | |
| 801 | |
| 4217 | 802 octave_interpreter_ready = true; |
| 803 | |
| 5654 | 804 initialize_version_info (); |
| 805 | |
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806 // Make all command-line arguments available to startup files, |
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807 // including PKG_ADD files. |
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808 |
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809 intern_argv (argc, argv); |
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810 |
| 6365 | 811 load_path::initialize (set_initial_path); |
| 4217 | 812 |
| 2239 | 813 execute_startup_files (); |
| 1651 | 814 |
|
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815 initialize_history (read_history_file); |
| 1 | 816 |
| 578 | 817 if (! inhibit_startup_message && reading_startup_message_printed) |
| 3538 | 818 std::cout << std::endl; |
| 578 | 819 |
| 1358 | 820 // If there is an extra argument, see if it names a file to read. |
| 821 // Additional arguments are taken as command line options for the | |
| 822 // script. | |
| 1 | 823 |
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824 int last_arg_idx = optind; |
| 3019 | 825 |
| 1817 | 826 int remaining_args = argc - last_arg_idx; |
| 3019 | 827 |
| 5189 | 828 if (! code_to_eval.empty ()) |
| 149 | 829 { |
| 5189 | 830 int parse_status = execute_eval_option_code (code_to_eval); |
| 831 | |
| 5242 | 832 if (! (persist || remaining_args > 0)) |
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833 clean_up_and_exit (parse_status || error_state ? 1 : 0); |
| 1 | 834 } |
| 835 | |
| 5189 | 836 if (remaining_args > 0) |
| 837 { | |
| 838 // If we are running an executable script (#! /bin/octave) then | |
| 839 // we should only see the args passed to the script. | |
| 840 | |
| 841 intern_argv (remaining_args, argv+last_arg_idx); | |
| 842 | |
| 843 execute_command_line_file (argv[last_arg_idx]); | |
| 844 | |
| 845 if (! persist) | |
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846 clean_up_and_exit (error_state ? 1 : 0); |
| 5189 | 847 } |
| 848 | |
| 849 // Avoid counting commands executed from startup files. | |
| 850 | |
| 851 command_editor::reset_current_command_number (1); | |
| 852 | |
| 853 // Now argv should have the full set of args. | |
| 854 intern_argv (argc, argv); | |
| 855 | |
| 856 if (! embedded) | |
| 857 switch_to_buffer (create_buffer (get_input_from_stdin ())); | |
| 858 | |
| 1358 | 859 // Force input to be echoed if not really interactive, but the user |
| 860 // has forced interactive behavior. | |
| 1 | 861 |
| 1907 | 862 if (! interactive && forced_interactive) |
| 287 | 863 { |
| 2926 | 864 command_editor::blink_matching_paren (false); |
| 1588 | 865 |
| 5775 | 866 // FIXME -- is this the right thing to do? |
| 1588 | 867 |
| 5794 | 868 bind_internal_variable ("echo_executing_commands", ECHO_CMD_LINE); |
| 287 | 869 } |
| 1 | 870 |
| 4368 | 871 if (embedded) |
| 5502 | 872 { |
| 5775 | 873 // FIXME -- do we need to do any cleanup here before |
| 5502 | 874 // returning? If we don't, what will happen to Octave functions |
| 875 // that have been registered to execute with atexit, for example? | |
| 876 | |
| 877 return 1; | |
| 878 } | |
| 4368 | 879 |
| 5189 | 880 int retval = main_loop (); |
| 1 | 881 |
| 1005 | 882 if (retval == 1 && ! error_state) |
| 883 retval = 0; | |
| 884 | |
| 1 | 885 clean_up_and_exit (retval); |
| 4247 | 886 |
| 887 return 0; | |
| 1 | 888 } |
| 889 | |
| 5780 | 890 DEFUN (argv, args, , |
| 891 "-*- texinfo -*-\n\ | |
| 892 @deftypefn {Built-in Function} {} argv ()\n\ | |
| 893 Return the command line arguments passed to Octave. For example,\n\ | |
| 894 if you invoked Octave using the command\n\ | |
| 895 \n\ | |
| 896 @example\n\ | |
| 897 octave --no-line-editing --silent\n\ | |
| 898 @end example\n\ | |
| 899 \n\ | |
| 900 @noindent\n\ | |
| 901 @code{argv} would return a cell array of strings with the elements\n\ | |
| 902 @code{--no-line-editing} and @code{--silent}.\n\ | |
| 903 \n\ | |
| 904 If you write an executable Octave script, @code{argv} will return the\n\ | |
| 905 list of arguments passed to the script. @xref{Executable Octave Programs},\n\ | |
| 906 for an example of how to create an executable Octave script.\n\ | |
| 907 @end deftypefn") | |
| 908 { | |
| 909 octave_value retval; | |
| 910 | |
| 911 if (args.length () == 0) | |
| 912 retval = Cell (octave_argv); | |
| 913 else | |
| 5823 | 914 print_usage (); |
| 5780 | 915 |
| 916 return retval; | |
| 917 } | |
| 918 | |
| 919 DEFUN (program_invocation_name, args, , | |
| 920 "-*- texinfo -*-\n\ | |
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921 @deftypefn {Built-in Function} {} program_invocation_name ()\n\ |
| 5780 | 922 Return the name that was typed at the shell prompt to run Octave.\n\ |
| 923 \n\ | |
| 924 If executing a script from the command line (e.g., @code{octave foo.m})\n\ | |
| 925 or using an executable Octave script, the program name is set to the\n\ | |
| 926 name of the script. @xref{Executable Octave Programs}, for an example of\n\ | |
| 927 how to create an executable Octave script.\n\ | |
| 928 @seealso{program_name}\n\ | |
| 929 @end deftypefn") | |
| 930 { | |
| 931 octave_value retval; | |
| 932 | |
| 933 if (args.length () == 0) | |
| 934 retval = octave_program_invocation_name; | |
| 935 else | |
| 5823 | 936 print_usage (); |
| 5780 | 937 |
| 938 return retval; | |
| 939 } | |
| 940 | |
| 941 DEFUN (program_name, args, , | |
| 942 "-*- texinfo -*-\n\ | |
| 943 @deftypefn {Built-in Function} {} program_name ()\n\ | |
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944 Return the last component of the value returned by\n\ |
| 5780 | 945 @code{program_invocation_name}.\n\ |
| 946 @seealso{program_invocation_name}\n\ | |
| 947 @end deftypefn") | |
| 948 { | |
| 949 octave_value retval; | |
| 950 | |
| 951 if (args.length () == 0) | |
| 952 retval = octave_program_name; | |
| 953 else | |
| 5823 | 954 print_usage (); |
| 5780 | 955 |
| 956 return retval; | |
| 957 } |