Mercurial > hg > octave-lyh
annotate src/utils.cc @ 10182:0522a65bcd56
assume unistd.h and sys/types.h exist
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Thu, 21 Jan 2010 15:41:19 -0500 |
| parents | cd96d29c5efa |
| children | 2d47356a7a1a |
| 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 | |
| 240 | 24 #ifdef HAVE_CONFIG_H |
| 1192 | 25 #include <config.h> |
| 1 | 26 #endif |
| 27 | |
| 3716 | 28 #include <cerrno> |
| 1343 | 29 #include <climits> |
| 1346 | 30 #include <cstring> |
| 1343 | 31 |
| 3503 | 32 #include <fstream> |
| 33 #include <iostream> | |
| 1728 | 34 #include <string> |
| 35 | |
| 1 | 36 #include <sys/types.h> |
| 37 #include <unistd.h> | |
| 367 | 38 |
| 4302 | 39 #include "quit.h" |
| 40 | |
| 3040 | 41 #include "dir-ops.h" |
| 42 #include "file-ops.h" | |
| 2926 | 43 #include "file-stat.h" |
| 4732 | 44 #include "lo-mappers.h" |
| 1651 | 45 #include "oct-cmplx.h" |
| 2926 | 46 #include "oct-env.h" |
| 3040 | 47 #include "pathsearch.h" |
| 1755 | 48 #include "str-vec.h" |
| 1651 | 49 |
| 4216 | 50 #include "Cell.h" |
| 2492 | 51 #include <defaults.h> |
| 1352 | 52 #include "defun.h" |
| 53 #include "dirfns.h" | |
| 54 #include "error.h" | |
| 55 #include "gripes.h" | |
| 56 #include "input.h" | |
| 5832 | 57 #include "load-path.h" |
| 5465 | 58 #include "oct-errno.h" |
| 1742 | 59 #include "oct-hist.h" |
| 1750 | 60 #include "oct-obj.h" |
| 1352 | 61 #include "pager.h" |
| 1690 | 62 #include "sysdep.h" |
| 1750 | 63 #include "toplev.h" |
| 1 | 64 #include "unwind-prot.h" |
| 1352 | 65 #include "utils.h" |
| 66 #include "variables.h" | |
| 1 | 67 |
| 4143 | 68 // Return TRUE if S is a valid identifier. |
| 69 | |
| 70 bool | |
| 71 valid_identifier (const char *s) | |
| 72 { | |
| 5290 | 73 if (! s || ! (isalpha (*s) || *s == '_' || *s == '$')) |
| 4143 | 74 return false; |
| 75 | |
| 76 while (*++s != '\0') | |
| 5290 | 77 if (! (isalnum (*s) || *s == '_' || *s == '$')) |
| 4143 | 78 return false; |
| 79 | |
| 80 return true; | |
| 81 } | |
| 82 | |
| 83 bool | |
| 84 valid_identifier (const std::string& s) | |
| 85 { | |
| 86 return valid_identifier (s.c_str ()); | |
| 87 } | |
| 88 | |
|
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89 DEFUN (isvarname, args, , |
| 5040 | 90 "-*- texinfo -*-\n\ |
| 91 @deftypefn {Built-in Function} {} isvarname (@var{name})\n\ | |
| 4264 | 92 Return true if @var{name} is a valid variable name\n\ |
| 93 @end deftypefn") | |
| 94 { | |
| 95 octave_value retval; | |
| 96 | |
| 97 int argc = args.length () + 1; | |
| 98 | |
| 4610 | 99 string_vector argv = args.make_argv ("isvarname"); |
| 4264 | 100 |
| 101 if (error_state) | |
| 102 return retval; | |
| 103 | |
| 104 if (argc == 2) | |
| 105 retval = valid_identifier (argv[1]); | |
| 106 else | |
| 5823 | 107 print_usage (); |
| 4264 | 108 |
| 109 return retval; | |
| 110 } | |
| 111 | |
| 6323 | 112 // Return TRUE if F and G are both names for the same file. |
| 113 | |
| 114 bool | |
| 115 same_file (const std::string& f, const std::string& g) | |
| 116 { | |
| 6598 | 117 return same_file_internal (f, g); |
| 6323 | 118 } |
| 119 | |
| 1 | 120 int |
| 3523 | 121 almost_match (const std::string& std, const std::string& s, int min_match_len, |
| 526 | 122 int case_sens) |
| 1 | 123 { |
| 1755 | 124 int stdlen = std.length (); |
| 125 int slen = s.length (); | |
| 1 | 126 |
| 127 return (slen <= stdlen | |
| 128 && slen >= min_match_len | |
| 287 | 129 && (case_sens |
| 1755 | 130 ? (strncmp (std.c_str (), s.c_str (), slen) == 0) |
| 3350 | 131 : (octave_strncasecmp (std.c_str (), s.c_str (), slen) == 0))); |
| 287 | 132 } |
| 133 | |
| 581 | 134 // Ugh. |
| 135 | |
| 287 | 136 int |
| 3523 | 137 keyword_almost_match (const char * const *std, int *min_len, const std::string& s, |
| 287 | 138 int min_toks_to_match, int max_toks) |
| 139 { | |
| 140 int status = 0; | |
| 141 int tok_count = 0; | |
| 142 int toks_matched = 0; | |
| 143 | |
| 1755 | 144 if (s.empty () || max_toks < 1) |
| 287 | 145 return status; |
| 146 | |
| 1755 | 147 char *kw = strsave (s.c_str ()); |
| 287 | 148 |
| 149 char *t = kw; | |
| 150 while (*t != '\0') | |
| 151 { | |
| 152 if (*t == '\t') | |
| 153 *t = ' '; | |
| 154 t++; | |
| 155 } | |
| 156 | |
| 157 char *beg = kw; | |
| 158 while (*beg == ' ') | |
| 159 beg++; | |
| 160 | |
| 161 if (*beg == '\0') | |
| 162 return status; | |
| 163 | |
| 164 | |
| 3072 | 165 const char **to_match = new const char * [max_toks + 1]; |
| 166 const char * const *s1 = std; | |
| 167 const char **s2 = to_match; | |
| 287 | 168 |
| 526 | 169 if (! s1 || ! s2) |
| 287 | 170 goto done; |
| 171 | |
| 172 s2[tok_count] = beg; | |
| 173 char *end; | |
| 526 | 174 while ((end = strchr (beg, ' ')) != 0) |
| 287 | 175 { |
| 176 *end = '\0'; | |
| 177 beg = end + 1; | |
| 178 | |
| 179 while (*beg == ' ') | |
| 180 beg++; | |
| 181 | |
| 182 if (*beg == '\0') | |
| 183 break; | |
| 184 | |
| 185 tok_count++; | |
| 186 if (tok_count >= max_toks) | |
| 187 goto done; | |
| 188 | |
| 189 s2[tok_count] = beg; | |
| 190 } | |
| 526 | 191 s2[tok_count+1] = 0; |
| 287 | 192 |
| 193 s2 = to_match; | |
| 194 | |
| 195 for (;;) | |
| 196 { | |
| 197 if (! almost_match (*s1, *s2, min_len[toks_matched], 0)) | |
| 198 goto done; | |
| 199 | |
| 200 toks_matched++; | |
| 201 | |
| 202 s1++; | |
| 203 s2++; | |
| 204 | |
| 205 if (! *s2) | |
| 206 { | |
| 207 status = (toks_matched >= min_toks_to_match); | |
| 208 goto done; | |
| 209 } | |
| 210 | |
| 211 if (! *s1) | |
| 212 goto done; | |
| 213 } | |
| 214 | |
| 215 done: | |
| 216 | |
| 217 delete [] kw; | |
| 218 delete [] to_match; | |
| 219 | |
| 220 return status; | |
| 1 | 221 } |
| 222 | |
| 2234 | 223 // Return non-zero if either NR or NC is zero. Return -1 if this |
| 224 // should be considered fatal; return 1 if this is ok. | |
| 225 | |
| 226 int | |
| 5275 | 227 empty_arg (const char * /* name */, octave_idx_type nr, octave_idx_type nc) |
| 2234 | 228 { |
| 4478 | 229 return (nr == 0 || nc == 0); |
| 2234 | 230 } |
| 231 | |
| 581 | 232 // See if the given file is in the path. |
| 233 | |
| 3536 | 234 std::string |
| 4243 | 235 search_path_for_file (const std::string& path, const string_vector& names) |
| 686 | 236 { |
| 3174 | 237 dir_path p (path); |
| 686 | 238 |
| 4243 | 239 return octave_env::make_absolute (p.find_first_of (names), |
| 240 octave_env::getcwd ()); | |
| 686 | 241 } |
| 242 | |
| 4216 | 243 // Find all locations of the given file in the path. |
| 244 | |
| 245 string_vector | |
| 4243 | 246 search_path_for_all_files (const std::string& path, const string_vector& names) |
| 4216 | 247 { |
| 248 dir_path p (path); | |
| 249 | |
| 4243 | 250 string_vector sv = p.find_all_first_of (names); |
| 4216 | 251 |
| 6379 | 252 octave_idx_type len = sv.length (); |
| 4216 | 253 |
| 6379 | 254 for (octave_idx_type i = 0; i < len; i++) |
| 4216 | 255 sv[i] = octave_env::make_absolute (sv[i], octave_env::getcwd ()); |
| 256 | |
| 257 return sv; | |
| 258 } | |
| 259 | |
| 260 static string_vector | |
| 261 make_absolute (const string_vector& sv) | |
| 262 { | |
| 6379 | 263 octave_idx_type len = sv.length (); |
| 264 | |
| 265 string_vector retval (len); | |
| 4216 | 266 |
| 6379 | 267 for (octave_idx_type i = 0; i < len; i++) |
| 268 retval[i] = octave_env::make_absolute (sv[i], octave_env::getcwd ()); | |
| 269 | |
| 270 return retval; | |
| 4216 | 271 } |
| 272 | |
| 3195 | 273 DEFUN (file_in_loadpath, args, , |
| 3446 | 274 "-*- texinfo -*-\n\ |
| 4216 | 275 @deftypefn {Built-in Function} {} file_in_loadpath (@var{file})\n\ |
| 276 @deftypefnx {Built-in Function} {} file_in_loadpath (@var{file}, \"all\")\n\ | |
| 3195 | 277 \n\ |
| 5448 | 278 Return the absolute name of @var{file} if it can be found in\n\ |
| 5814 | 279 the list of directories specified by @code{path}.\n\ |
| 4216 | 280 If no file is found, return an empty matrix.\n\ |
| 281 \n\ | |
| 5448 | 282 If the first argument is a cell array of strings, search each\n\ |
| 4243 | 283 directory of the loadpath for element of the cell array and return\n\ |
| 284 the first that matches.\n\ | |
| 285 \n\ | |
| 4216 | 286 If the second optional argument @code{\"all\"} is supplied, return\n\ |
| 287 a cell array containing the list of all files that have the same\n\ | |
| 288 name in the path. If no files are found, return an empty cell array.\n\ | |
| 5814 | 289 @seealso{file_in_path, path}\n\ |
| 5642 | 290 @end deftypefn") |
| 3195 | 291 { |
| 4216 | 292 octave_value retval; |
| 3195 | 293 |
| 4243 | 294 int nargin = args.length (); |
| 3195 | 295 |
| 4243 | 296 if (nargin == 1 || nargin == 2) |
| 4216 | 297 { |
| 4243 | 298 string_vector names = args(0).all_strings (); |
| 299 | |
| 300 if (! error_state && names.length () > 0) | |
| 301 { | |
| 302 if (nargin == 1) | |
| 303 { | |
| 304 std::string fname = octave_env::make_absolute | |
| 5832 | 305 (load_path::find_first_of (names), octave_env::getcwd ()); |
| 4243 | 306 |
| 307 if (fname.empty ()) | |
| 308 retval = Matrix (); | |
| 309 else | |
| 310 retval = fname; | |
| 311 } | |
| 312 else if (nargin == 2) | |
| 313 { | |
| 314 std::string opt = args(1).string_value (); | |
| 315 | |
| 316 if (! error_state && opt == "all") | |
| 5832 | 317 retval = Cell (make_absolute (load_path::find_all_first_of (names))); |
| 4243 | 318 else |
| 4249 | 319 error ("file_in_loadpath: invalid option"); |
| 4243 | 320 } |
| 321 } | |
| 4216 | 322 else |
| 4243 | 323 error ("file_in_loadpath: expecting string as first argument"); |
| 4216 | 324 } |
| 3195 | 325 else |
| 5823 | 326 print_usage (); |
| 3195 | 327 |
| 328 return retval; | |
| 329 } | |
| 330 | |
| 1957 | 331 DEFUN (file_in_path, args, , |
| 3301 | 332 "-*- texinfo -*-\n\ |
| 333 @deftypefn {Built-in Function} {} file_in_path (@var{path}, @var{file})\n\ | |
| 4216 | 334 @deftypefnx {Built-in Function} {} file_in_path (@var{path}, @var{file}, \"all\")\n\ |
| 5448 | 335 Return the absolute name of @var{file} if it can be found in\n\ |
| 3301 | 336 @var{path}. The value of @var{path} should be a colon-separated list of\n\ |
| 5814 | 337 directories in the format described for @code{path}. If no file\n\ |
| 5794 | 338 is found, return an empty matrix. For example,\n\ |
| 3301 | 339 \n\ |
| 340 @example\n\ | |
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341 @group\n\ |
| 5456 | 342 file_in_path (EXEC_PATH, \"sh\")\n\ |
| 343 @result{} \"/bin/sh\"\n\ | |
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344 @end group\n\ |
| 3301 | 345 @end example\n\ |
| 4216 | 346 \n\ |
| 5448 | 347 If the second argument is a cell array of strings, search each\n\ |
| 4243 | 348 directory of the path for element of the cell array and return\n\ |
| 349 the first that matches.\n\ | |
| 350 \n\ | |
| 4216 | 351 If the third optional argument @code{\"all\"} is supplied, return\n\ |
| 352 a cell array containing the list of all files that have the same\n\ | |
| 353 name in the path. If no files are found, return an empty cell array.\n\ | |
| 4249 | 354 @seealso{file_in_loadpath}\n\ |
| 3301 | 355 @end deftypefn") |
| 686 | 356 { |
| 4216 | 357 octave_value retval; |
| 686 | 358 |
| 4243 | 359 int nargin = args.length (); |
| 1755 | 360 |
| 4243 | 361 if (nargin == 2 || nargin == 3) |
| 686 | 362 { |
| 4243 | 363 std::string path = args(0).string_value (); |
| 364 | |
| 365 if (! error_state) | |
| 366 { | |
| 4249 | 367 string_vector names = args(1).all_strings (); |
| 4243 | 368 |
| 369 if (! error_state && names.length () > 0) | |
| 370 { | |
| 371 if (nargin == 2) | |
| 372 { | |
| 373 std::string fname = search_path_for_file (path, names); | |
| 686 | 374 |
| 4243 | 375 if (fname.empty ()) |
| 376 retval = Matrix (); | |
| 377 else | |
| 378 retval = fname; | |
| 379 } | |
| 380 else if (nargin == 3) | |
| 381 { | |
| 4249 | 382 std::string opt = args(2).string_value (); |
| 4243 | 383 |
| 384 if (! error_state && opt == "all") | |
| 385 retval = Cell (make_absolute (search_path_for_all_files (path, names))); | |
| 386 else | |
| 4249 | 387 error ("file_in_path: invalid option"); |
| 4243 | 388 } |
| 389 } | |
| 390 else | |
| 391 error ("file_in_path: expecting string as second argument"); | |
| 392 } | |
| 1755 | 393 else |
| 4243 | 394 error ("file_in_path: expecting string as first argument"); |
| 686 | 395 } |
| 396 else | |
| 5823 | 397 print_usage (); |
| 686 | 398 |
| 399 return retval; | |
| 400 } | |
| 401 | |
| 3536 | 402 std::string |
| 3523 | 403 file_in_path (const std::string& name, const std::string& suffix) |
| 526 | 404 { |
| 3523 | 405 std::string nm = name; |
| 526 | 406 |
| 1755 | 407 if (! suffix.empty ()) |
| 408 nm.append (suffix); | |
| 686 | 409 |
| 5832 | 410 return octave_env::make_absolute |
| 411 (load_path::find_file (nm), octave_env::getcwd ()); | |
| 526 | 412 } |
| 413 | |
| 581 | 414 // See if there is an function file in the path. If so, return the |
| 415 // full path to the file. | |
| 416 | |
| 3536 | 417 std::string |
| 3523 | 418 fcn_file_in_path (const std::string& name) |
| 526 | 419 { |
| 3523 | 420 std::string retval; |
| 908 | 421 |
| 1755 | 422 int len = name.length (); |
| 423 | |
| 424 if (len > 0) | |
| 425 { | |
| 5832 | 426 if (octave_env::absolute_pathname (name)) |
| 427 { | |
| 428 file_stat fs (name); | |
| 429 | |
| 430 if (fs.exists ()) | |
| 431 retval = name; | |
| 432 } | |
| 433 else if (len > 2 && name [len - 2] == '.' && name [len - 1] == 'm') | |
| 434 retval = load_path::find_fcn_file (name.substr (0, len-2)); | |
| 908 | 435 else |
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436 { |
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437 std::string fname = name; |
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438 size_t pos = name.find_first_of (Vfilemarker); |
| 8021 | 439 if (pos != std::string::npos) |
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440 fname = name.substr (0, pos); |
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441 |
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442 retval = load_path::find_fcn_file (fname); |
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443 } |
| 908 | 444 } |
| 1755 | 445 |
| 446 return retval; | |
| 526 | 447 } |
| 448 | |
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449 // See if there is a directory called "name" in the path and if it |
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450 // contains a Contents.m file return the full path to this file. |
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451 |
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452 std::string |
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453 contents_file_in_path (const std::string& dir) |
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454 { |
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455 std::string retval; |
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456 |
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457 if (dir.length () > 0) |
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458 { |
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459 std::string tcontents = file_ops::concat (load_path::find_dir (dir), |
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460 std::string ("Contents.m")); |
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461 |
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462 file_stat fs (tcontents); |
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463 |
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464 if (fs.exists ()) |
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465 retval = octave_env::make_absolute (tcontents, octave_env::getcwd ()); |
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466 } |
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467 |
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468 return retval; |
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469 } |
|
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470 |
| 5864 | 471 // See if there is a .oct file in the path. If so, return the |
| 581 | 472 // full path to the file. |
| 473 | |
| 3536 | 474 std::string |
| 3523 | 475 oct_file_in_path (const std::string& name) |
| 572 | 476 { |
| 3523 | 477 std::string retval; |
| 908 | 478 |
| 1755 | 479 int len = name.length (); |
| 480 | |
| 481 if (len > 0) | |
| 482 { | |
| 5832 | 483 if (octave_env::absolute_pathname (name)) |
| 484 { | |
| 485 file_stat fs (name); | |
| 486 | |
| 487 if (fs.exists ()) | |
| 488 retval = name; | |
| 489 } | |
| 490 else if (len > 4 && name [len - 4] == '.' && name [len - 3] == 'o' | |
| 491 && name [len - 2] == 'c' && name [len - 1] == 't') | |
| 492 retval = load_path::find_oct_file (name.substr (0, len-4)); | |
| 908 | 493 else |
| 5832 | 494 retval = load_path::find_oct_file (name); |
| 908 | 495 } |
| 1755 | 496 |
| 497 return retval; | |
| 572 | 498 } |
| 499 | |
| 5864 | 500 // See if there is a .mex file in the path. If so, return the |
| 501 // full path to the file. | |
| 502 | |
| 503 std::string | |
| 504 mex_file_in_path (const std::string& name) | |
| 505 { | |
| 506 std::string retval; | |
| 507 | |
| 508 int len = name.length (); | |
| 509 | |
| 510 if (len > 0) | |
| 511 { | |
| 512 if (octave_env::absolute_pathname (name)) | |
| 513 { | |
| 514 file_stat fs (name); | |
| 515 | |
| 516 if (fs.exists ()) | |
| 517 retval = name; | |
| 518 } | |
| 519 else if (len > 4 && name [len - 4] == '.' && name [len - 3] == 'm' | |
| 520 && name [len - 2] == 'e' && name [len - 1] == 'x') | |
| 521 retval = load_path::find_mex_file (name.substr (0, len-4)); | |
| 522 else | |
| 523 retval = load_path::find_mex_file (name); | |
| 524 } | |
| 525 | |
| 526 return retval; | |
| 527 } | |
| 528 | |
| 3103 | 529 // Replace backslash escapes in a string with the real values. |
| 530 | |
| 3536 | 531 std::string |
| 3523 | 532 do_string_escapes (const std::string& s) |
| 3103 | 533 { |
| 3523 | 534 std::string retval; |
| 3103 | 535 |
| 536 size_t i = 0; | |
| 537 size_t j = 0; | |
| 538 size_t len = s.length (); | |
| 539 | |
| 540 retval.resize (len); | |
| 541 | |
| 542 while (j < len) | |
| 543 { | |
| 544 if (s[j] == '\\' && j+1 < len) | |
| 545 { | |
| 546 switch (s[++j]) | |
| 547 { | |
| 3893 | 548 case '0': |
| 549 retval[i] = '\0'; | |
| 550 break; | |
| 551 | |
| 3103 | 552 case 'a': |
| 553 retval[i] = '\a'; | |
| 554 break; | |
| 555 | |
| 556 case 'b': // backspace | |
| 557 retval[i] = '\b'; | |
| 558 break; | |
| 559 | |
| 560 case 'f': // formfeed | |
| 561 retval[i] = '\f'; | |
| 562 break; | |
| 563 | |
| 564 case 'n': // newline | |
| 565 retval[i] = '\n'; | |
| 566 break; | |
| 567 | |
| 568 case 'r': // carriage return | |
| 569 retval[i] = '\r'; | |
| 570 break; | |
| 571 | |
| 572 case 't': // horizontal tab | |
| 573 retval[i] = '\t'; | |
| 574 break; | |
| 575 | |
| 576 case 'v': // vertical tab | |
| 577 retval[i] = '\v'; | |
| 578 break; | |
| 579 | |
| 580 case '\\': // backslash | |
| 581 retval[i] = '\\'; | |
| 582 break; | |
| 583 | |
| 584 case '\'': // quote | |
| 585 retval[i] = '\''; | |
| 586 break; | |
| 587 | |
| 588 case '"': // double quote | |
| 589 retval[i] = '"'; | |
| 590 break; | |
| 591 | |
| 592 default: | |
| 593 warning ("unrecognized escape sequence `\\%c' --\ | |
| 594 converting to `%c'", s[j], s[j]); | |
| 595 retval[i] = s[j]; | |
| 596 break; | |
| 597 } | |
| 598 } | |
| 599 else | |
| 600 { | |
| 601 retval[i] = s[j]; | |
| 602 } | |
| 603 | |
| 604 i++; | |
| 605 j++; | |
| 606 } | |
| 607 | |
| 3105 | 608 retval.resize (i); |
| 3103 | 609 |
| 610 return retval; | |
| 611 } | |
| 612 | |
| 613 DEFUN (do_string_escapes, args, , | |
| 3446 | 614 "-*- texinfo -*-\n\ |
| 615 @deftypefn {Built-in Function} {} do_string_escapes (@var{string})\n\ | |
| 616 Convert special characters in @var{string} to their escaped forms.\n\ | |
| 617 @end deftypefn") | |
| 3103 | 618 { |
| 619 octave_value retval; | |
| 620 | |
| 621 int nargin = args.length (); | |
| 622 | |
| 623 if (nargin == 1) | |
| 624 { | |
| 625 if (args(0).is_string ()) | |
| 626 retval = do_string_escapes (args(0).string_value ()); | |
| 627 else | |
| 628 error ("do_string_escapes: argument must be a string"); | |
| 629 } | |
| 630 else | |
| 5823 | 631 print_usage (); |
| 3103 | 632 |
| 633 return retval; | |
| 634 } | |
| 635 | |
| 1755 | 636 const char * |
| 801 | 637 undo_string_escape (char c) |
| 638 { | |
| 639 if (! c) | |
| 1755 | 640 return ""; |
| 801 | 641 |
| 642 switch (c) | |
| 643 { | |
| 3893 | 644 case '\0': |
| 645 return "\\0"; | |
| 646 | |
| 801 | 647 case '\a': |
| 648 return "\\a"; | |
| 649 | |
| 650 case '\b': // backspace | |
| 651 return "\\b"; | |
| 652 | |
| 653 case '\f': // formfeed | |
| 654 return "\\f"; | |
| 655 | |
| 656 case '\n': // newline | |
| 657 return "\\n"; | |
| 658 | |
| 659 case '\r': // carriage return | |
| 660 return "\\r"; | |
| 661 | |
| 662 case '\t': // horizontal tab | |
| 663 return "\\t"; | |
| 664 | |
| 665 case '\v': // vertical tab | |
| 666 return "\\v"; | |
| 667 | |
| 668 case '\\': // backslash | |
| 669 return "\\\\"; | |
| 670 | |
| 671 case '"': // double quote | |
| 672 return "\\\""; | |
| 673 | |
| 674 default: | |
| 1755 | 675 { |
| 676 static char retval[2]; | |
| 677 retval[0] = c; | |
| 678 retval[1] = '\0'; | |
| 679 return retval; | |
| 680 } | |
| 801 | 681 } |
| 682 } | |
| 683 | |
| 3536 | 684 std::string |
| 3523 | 685 undo_string_escapes (const std::string& s) |
| 801 | 686 { |
| 3523 | 687 std::string retval; |
| 801 | 688 |
| 1755 | 689 for (size_t i = 0; i < s.length (); i++) |
| 690 retval.append (undo_string_escape (s[i])); | |
| 801 | 691 |
| 1755 | 692 return retval; |
| 801 | 693 } |
| 694 | |
| 1957 | 695 DEFUN (undo_string_escapes, args, , |
| 3361 | 696 "-*- texinfo -*-\n\ |
| 697 @deftypefn {Built-in Function} {} undo_string_escapes (@var{s})\n\ | |
| 698 Converts special characters in strings back to their escaped forms. For\n\ | |
| 699 example, the expression\n\ | |
| 700 \n\ | |
| 701 @example\n\ | |
| 702 bell = \"\\a\";\n\ | |
| 703 @end example\n\ | |
| 704 \n\ | |
| 705 @noindent\n\ | |
| 706 assigns the value of the alert character (control-g, ASCII code 7) to\n\ | |
| 707 the string variable @code{bell}. If this string is printed, the\n\ | |
| 708 system will ring the terminal bell (if it is possible). This is\n\ | |
| 709 normally the desired outcome. However, sometimes it is useful to be\n\ | |
| 710 able to print the original representation of the string, with the\n\ | |
| 711 special characters replaced by their escape sequences. For example,\n\ | |
| 712 \n\ | |
| 713 @example\n\ | |
|
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714 @group\n\ |
| 3361 | 715 octave:13> undo_string_escapes (bell)\n\ |
| 716 ans = \\a\n\ | |
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717 @end group\n\ |
| 3361 | 718 @end example\n\ |
| 719 \n\ | |
| 720 @noindent\n\ | |
| 721 replaces the unprintable alert character with its printable\n\ | |
| 722 representation.\n\ | |
| 723 @end deftypefn") | |
| 801 | 724 { |
| 2086 | 725 octave_value retval; |
| 801 | 726 |
| 727 int nargin = args.length (); | |
| 728 | |
| 3103 | 729 if (nargin == 1) |
| 730 { | |
| 731 if (args(0).is_string ()) | |
| 732 retval = undo_string_escapes (args(0).string_value ()); | |
| 733 else | |
| 734 error ("undo_string_escapes: argument must be a string"); | |
| 735 } | |
| 801 | 736 else |
| 5823 | 737 print_usage (); |
| 801 | 738 |
| 739 return retval; | |
| 740 } | |
| 741 | |
| 8229 | 742 DEFUN (is_absolute_filename, args, , |
| 743 "-*- texinfo -*-\n\ | |
| 744 @deftypefn {Built-in Function} {} is_absolute_filename (@var{file})\n\ | |
| 745 Return true if @var{file} is an absolute filename.\n\ | |
| 746 @end deftypefn") | |
| 747 { | |
| 748 octave_value retval = false; | |
| 749 | |
| 750 if (args.length () == 1) | |
| 751 retval = (args(0).is_string () | |
| 752 && octave_env::absolute_pathname (args(0).string_value ())); | |
| 753 else | |
| 754 print_usage (); | |
| 755 | |
| 756 return retval; | |
| 757 } | |
| 758 | |
| 759 DEFUN (is_rooted_relative_filename, args, , | |
| 760 "-*- texinfo -*-\n\ | |
| 761 @deftypefn {Built-in Function} {} is_rooted_relative_filename (@var{file})\n\ | |
| 762 Return true if @var{file} is a rooted-relative filename.\n\ | |
| 763 @end deftypefn") | |
| 764 { | |
| 765 octave_value retval = false; | |
| 766 | |
| 767 if (args.length () == 1) | |
| 768 retval = (args(0).is_string () | |
| 769 && octave_env::rooted_relative_pathname (args(0).string_value ())); | |
| 770 else | |
| 771 print_usage (); | |
| 772 | |
| 773 return retval; | |
| 774 } | |
| 775 | |
| 776 DEFUN (make_absolute_filename, args, , | |
| 777 "-*- texinfo -*-\n\ | |
| 778 @deftypefn {Built-in Function} {} make_absolute_filename (@var{file})\n\ | |
| 779 Return the full name of @var{file}, relative to the current directory.\n\ | |
| 780 @end deftypefn") | |
| 781 { | |
| 782 octave_value retval = std::string (); | |
| 783 | |
| 784 if (args.length () == 1) | |
| 785 { | |
| 786 std::string nm = args(0).string_value (); | |
| 787 | |
| 788 if (! error_state) | |
| 789 retval = octave_env::make_absolute (nm, octave_env::getcwd ()); | |
| 790 else | |
| 791 error ("make_absolute_filename: expecting argument to be a file name"); | |
| 792 } | |
| 793 else | |
| 794 print_usage (); | |
| 795 | |
| 796 return retval; | |
| 797 } | |
| 798 | |
| 799 DEFUN (find_dir_in_path, args, , | |
| 800 "-*- texinfo -*-\n\ | |
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801 @deftypefn {Built-in Function} {} find_dir_in_path (@var{dir}, \"all\")\n\ |
| 8229 | 802 Return the full name of the path element matching @var{dir}. The\n\ |
| 803 match is performed at the end of each path element. For example, if\n\ | |
| 804 @var{dir} is @code{\"foo/bar\"}, it matches the path element\n\ | |
| 805 @code{\"/some/dir/foo/bar\"}, but not @code{\"/some/dir/foo/bar/baz\"}\n\ | |
| 8715 | 806 or @code{\"/some/dir/allfoo/bar\"}.\n\ |
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807 \n\ |
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808 The second argument is optional. If it is supplied, return a cell array\n\ |
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809 containing all the directory names that match.\n\ |
| 8229 | 810 @end deftypefn") |
| 811 { | |
| 812 octave_value retval = std::string (); | |
| 813 | |
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814 int nargin = args.length (); |
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815 |
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816 std::string dir; |
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817 |
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818 if (nargin == 1 || nargin == 2) |
| 8229 | 819 { |
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820 dir = args(0).string_value (); |
| 8229 | 821 |
| 822 if (! error_state) | |
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823 { |
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824 if (nargin == 1) |
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825 retval = load_path::find_dir (dir); |
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826 else if (nargin == 2) |
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827 retval = Cell (load_path::find_matching_dirs (dir)); |
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828 } |
| 8229 | 829 else |
| 830 error ("find_dir_in_path: expecting argument to be a directory name"); | |
| 831 } | |
| 832 else | |
| 833 print_usage (); | |
| 834 | |
| 835 return retval; | |
| 836 } | |
| 837 | |
| 5465 | 838 DEFUNX ("errno", Ferrno, args, , |
| 3716 | 839 "-*- texinfo -*-\n\ |
| 5465 | 840 @deftypefn {Built-in Function} {@var{err} =} errno ()\n\ |
| 841 @deftypefnx {Built-in Function} {@var{err} =} errno (@var{val})\n\ | |
| 842 @deftypefnx {Built-in Function} {@var{err} =} errno (@var{name})\n\ | |
| 843 Return the current value of the system-dependent variable errno,\n\ | |
| 844 set its value to @var{val} and return the previous value, or return\n\ | |
| 845 the named error code given @var{name} as a character string, or -1\n\ | |
| 846 if @var{name} is not found.\n\ | |
| 3716 | 847 @end deftypefn") |
| 848 { | |
| 849 octave_value retval; | |
| 850 | |
| 5465 | 851 int nargin = args.length (); |
| 852 | |
| 853 if (nargin == 1) | |
| 854 { | |
| 855 if (args(0).is_string ()) | |
| 856 { | |
| 857 std::string nm = args(0).string_value (); | |
| 858 | |
| 859 if (! error_state) | |
| 860 retval = octave_errno::lookup (nm); | |
| 861 else | |
| 862 error ("errno: expecting character string argument"); | |
| 863 } | |
| 864 else | |
| 865 { | |
| 866 int val = args(0).int_value (); | |
| 867 | |
| 868 if (! error_state) | |
| 869 retval = octave_errno::set (val); | |
| 870 else | |
| 871 error ("errno: expecting integer argument"); | |
| 872 } | |
| 873 } | |
| 874 else if (nargin == 0) | |
| 875 retval = octave_errno::get (); | |
| 3716 | 876 else |
| 5823 | 877 print_usage (); |
| 3716 | 878 |
| 879 return retval; | |
| 880 } | |
| 881 | |
| 5465 | 882 DEFUN (errno_list, args, , |
| 883 "-*- texinfo -*-\n\ | |
| 884 @deftypefn {Built-in Function} {} errno_list ()\n\ | |
| 885 Return a structure containing the system-dependent errno values.\n\ | |
| 886 @end deftypefn") | |
| 887 { | |
| 888 octave_value retval; | |
| 889 | |
| 890 if (args.length () == 0) | |
| 891 retval = octave_errno::list (); | |
| 892 else | |
| 5823 | 893 print_usage (); |
| 5465 | 894 |
| 895 return retval; | |
| 896 } | |
| 3716 | 897 |
| 2285 | 898 static void |
| 5275 | 899 check_dimensions (octave_idx_type& nr, octave_idx_type& nc, const char *warnfor) |
| 3354 | 900 { |
| 901 if (nr < 0 || nc < 0) | |
| 902 { | |
| 5781 | 903 warning_with_id ("Octave:neg-dim-as-zero", |
| 904 "%s: converting negative dimension to zero", warnfor); | |
| 3354 | 905 |
| 4457 | 906 nr = (nr < 0) ? 0 : nr; |
| 907 nc = (nc < 0) ? 0 : nc; | |
| 3354 | 908 } |
| 909 } | |
| 910 | |
| 911 void | |
| 4513 | 912 check_dimensions (dim_vector& dim, const char *warnfor) |
| 4481 | 913 { |
| 914 bool neg = false; | |
| 915 | |
| 916 for (int i = 0; i < dim.length (); i++) | |
| 917 { | |
| 918 if (dim(i) < 0) | |
| 919 { | |
| 920 dim(i) = 0; | |
| 921 neg = true; | |
| 922 } | |
| 923 } | |
| 924 | |
| 5781 | 925 if (neg) |
| 926 warning_with_id ("Octave:neg-dim-as-zero", | |
| 927 "%s: converting negative dimension to zero", warnfor); | |
| 4481 | 928 } |
| 929 | |
| 930 | |
| 931 void | |
| 932 get_dimensions (const octave_value& a, const char *warn_for, | |
| 4513 | 933 dim_vector& dim) |
| 4481 | 934 { |
| 935 if (a.is_scalar_type ()) | |
| 936 { | |
| 937 dim.resize (2); | |
| 4732 | 938 dim(0) = a.int_value (); |
| 4481 | 939 dim(1) = dim(0); |
| 940 } | |
| 941 else | |
| 942 { | |
| 5275 | 943 octave_idx_type nr = a.rows (); |
| 944 octave_idx_type nc = a.columns (); | |
| 4481 | 945 |
| 946 if (nr == 1 || nc == 1) | |
| 947 { | |
| 948 Array<double> v = a.vector_value (); | |
| 949 | |
| 950 if (error_state) | |
| 951 return; | |
| 952 | |
| 5275 | 953 octave_idx_type n = v.length (); |
| 4481 | 954 dim.resize (n); |
| 5275 | 955 for (octave_idx_type i = 0; i < n; i++) |
| 4783 | 956 dim(i) = static_cast<int> (fix (v(i))); |
| 4481 | 957 } |
| 958 else | |
| 5257 | 959 error ("%s (A): use %s (size (A)) instead", warn_for, warn_for); |
| 4481 | 960 } |
| 961 | |
| 5258 | 962 if (! error_state) |
| 963 check_dimensions (dim, warn_for); // May set error_state. | |
| 4481 | 964 } |
| 965 | |
| 966 | |
| 967 void | |
| 3354 | 968 get_dimensions (const octave_value& a, const char *warn_for, |
| 5275 | 969 octave_idx_type& nr, octave_idx_type& nc) |
| 3354 | 970 { |
| 971 if (a.is_scalar_type ()) | |
| 972 { | |
| 4732 | 973 nr = nc = a.int_value (); |
| 3354 | 974 } |
| 975 else | |
| 976 { | |
| 977 nr = a.rows (); | |
| 978 nc = a.columns (); | |
| 979 | |
| 980 if ((nr == 1 && nc == 2) || (nr == 2 && nc == 1)) | |
| 981 { | |
| 3419 | 982 Array<double> v = a.vector_value (); |
| 3354 | 983 |
| 984 if (error_state) | |
| 985 return; | |
| 986 | |
| 5275 | 987 nr = static_cast<octave_idx_type> (fix (v (0))); |
| 988 nc = static_cast<octave_idx_type> (fix (v (1))); | |
| 3354 | 989 } |
| 990 else | |
| 5257 | 991 error ("%s (A): use %s (size (A)) instead", warn_for, warn_for); |
| 3354 | 992 } |
| 993 | |
| 5258 | 994 if (! error_state) |
| 995 check_dimensions (nr, nc, warn_for); // May set error_state. | |
| 3354 | 996 } |
| 997 | |
| 998 void | |
| 999 get_dimensions (const octave_value& a, const octave_value& b, | |
| 5275 | 1000 const char *warn_for, octave_idx_type& nr, octave_idx_type& nc) |
| 3354 | 1001 { |
| 4732 | 1002 nr = a.is_empty () ? 0 : a.int_value (); |
| 1003 nc = b.is_empty () ? 0 : b.int_value (); | |
| 3354 | 1004 |
| 1005 if (error_state) | |
| 1006 error ("%s: expecting two scalar arguments", warn_for); | |
| 1007 else | |
| 1008 check_dimensions (nr, nc, warn_for); // May set error_state. | |
| 1009 } | |
| 1010 | |
|
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1011 octave_idx_type |
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1012 dims_to_numel (const dim_vector& dims, const octave_value_list& idx) |
|
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1013 { |
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1014 octave_idx_type retval; |
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1015 |
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1016 octave_idx_type len = idx.length (); |
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1017 |
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1018 if (len == 0) |
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1019 retval = dims.numel (); |
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1020 else |
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1021 { |
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1022 const dim_vector dv = dims.redim (len); |
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1023 retval = 1; |
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1024 for (octave_idx_type i = 0; i < len; i++) |
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1025 { |
|
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1026 octave_value idxi = idx(i); |
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1027 if (idxi.is_magic_colon ()) |
|
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1028 retval *= dv(i); |
|
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1029 else if (idxi.is_numeric_type ()) |
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1030 retval *= idxi.numel (); |
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1031 else |
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1032 { |
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1033 idx_vector jdx = idxi.index_vector (); |
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1034 if (error_state) |
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1035 break; |
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1036 retval *= jdx.length (dv(i)); |
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1037 } |
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1038 } |
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1039 } |
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|
1040 |
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1041 return retval; |
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1042 } |
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|
1043 |
|
10033
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|
1044 void |
|
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1045 decode_subscripts (const char* name, const octave_value& arg, |
|
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1046 std::string& type_string, |
|
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1047 std::list<octave_value_list>& idx) |
|
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|
1048 { |
|
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|
1049 Octave_map m = arg.map_value (); |
|
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|
1050 |
|
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1051 if (! error_state |
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1052 && m.nfields () == 2 && m.contains ("type") && m.contains ("subs")) |
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1053 { |
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1054 Cell& type = m.contents ("type"); |
|
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1055 Cell& subs = m.contents ("subs"); |
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|
1056 |
|
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|
1057 type_string = std::string (type.length(), '\0'); |
|
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1058 |
|
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1059 for (int k = 0; k < type.length (); k++) |
|
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|
1060 { |
|
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|
1061 std::string item = type(k).string_value (); |
|
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|
1062 |
|
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|
1063 if (! error_state) |
|
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|
1064 { |
|
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|
1065 if (item == "{}") |
|
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|
1066 type_string[k] = '{'; |
|
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|
1067 else if (item == "()") |
|
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|
1068 type_string[k] = '('; |
|
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|
1069 else if (item == ".") |
|
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|
1070 type_string[k] = '.'; |
|
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1071 else |
|
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1072 { |
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1073 error("%s: invalid indexing type `%s'", name, item.c_str ()); |
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1074 return; |
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1075 } |
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1076 } |
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1077 else |
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1078 { |
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1079 error ("%s: expecting type(%d) to be a character string", |
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1080 name, k+1); |
|
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1081 return; |
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1082 } |
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|
1083 |
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1084 octave_value_list idx_item; |
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1085 |
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1086 if (subs(k).is_string ()) |
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1087 idx_item(0) = subs(k); |
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1088 else if (subs(k).is_cell ()) |
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1089 { |
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1090 Cell subs_cell = subs(k).cell_value (); |
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1091 |
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1092 for (int n = 0; n < subs_cell.length (); n++) |
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1093 { |
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1094 if (subs_cell(n).is_string () |
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1095 && subs_cell(n).string_value () == ":") |
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1096 idx_item(n) = octave_value(octave_value::magic_colon_t); |
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1097 else |
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1098 idx_item(n) = subs_cell(n); |
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1099 } |
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1100 } |
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1101 else |
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1102 { |
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1103 error ("%s: expecting subs(%d) to be a character string or cell array", |
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1104 name, k+1); |
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1105 return; |
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1106 } |
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1107 |
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1108 idx.push_back (idx_item); |
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1109 } |
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1110 } |
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1111 else |
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|
1112 error ("%s: second argument must be a structure with fields `type' and `subs'", name); |
|
f349847c4541
optimize cellfun (@subsref, args, {subs}, uniformoutput, true) case
Jaroslav Hajek <highegg@gmail.com>
parents:
9842
diff
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|
1113 } |
|
f349847c4541
optimize cellfun (@subsref, args, {subs}, uniformoutput, true) case
Jaroslav Hajek <highegg@gmail.com>
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diff
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|
1114 |
| 4478 | 1115 Matrix |
| 5275 | 1116 identity_matrix (octave_idx_type nr, octave_idx_type nc) |
| 4478 | 1117 { |
| 1118 Matrix m (nr, nc, 0.0); | |
| 1119 | |
| 1120 if (nr > 0 && nc > 0) | |
| 1121 { | |
| 5275 | 1122 octave_idx_type n = std::min (nr, nc); |
| 4478 | 1123 |
| 5275 | 1124 for (octave_idx_type i = 0; i < n; i++) |
| 4478 | 1125 m (i, i) = 1.0; |
| 1126 } | |
| 1127 | |
| 1128 return m; | |
| 1129 } | |
| 1130 | |
|
7789
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First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
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diff
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|
1131 FloatMatrix |
|
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1132 float_identity_matrix (octave_idx_type nr, octave_idx_type nc) |
|
82be108cc558
First attempt at single precision tyeps
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parents:
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diff
changeset
|
1133 { |
|
82be108cc558
First attempt at single precision tyeps
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diff
changeset
|
1134 FloatMatrix m (nr, nc, 0.0); |
|
82be108cc558
First attempt at single precision tyeps
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diff
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|
1135 |
|
82be108cc558
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diff
changeset
|
1136 if (nr > 0 && nc > 0) |
|
82be108cc558
First attempt at single precision tyeps
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diff
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|
1137 { |
|
82be108cc558
First attempt at single precision tyeps
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diff
changeset
|
1138 octave_idx_type n = std::min (nr, nc); |
|
82be108cc558
First attempt at single precision tyeps
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|
1139 |
|
82be108cc558
First attempt at single precision tyeps
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changeset
|
1140 for (octave_idx_type i = 0; i < n; i++) |
|
82be108cc558
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diff
changeset
|
1141 m (i, i) = 1.0; |
|
82be108cc558
First attempt at single precision tyeps
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diff
changeset
|
1142 } |
|
82be108cc558
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parents:
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diff
changeset
|
1143 |
|
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1144 return m; |
|
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
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diff
changeset
|
1145 } |
|
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1146 |
|
8012
63dbb85452cc
fix extern decls in .cc files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1147 int |
| 3622 | 1148 octave_format (std::ostream& os, const char *fmt, ...) |
| 3620 | 1149 { |
| 1150 int retval = -1; | |
| 1151 | |
| 1152 va_list args; | |
| 1153 va_start (args, fmt); | |
| 1154 | |
| 1155 retval = octave_vformat (os, fmt, args); | |
| 1156 | |
| 1157 va_end (args); | |
| 1158 | |
| 1159 return retval; | |
| 1160 } | |
| 1161 | |
|
8012
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fix extern decls in .cc files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1162 int |
| 3622 | 1163 octave_vformat (std::ostream& os, const char *fmt, va_list args) |
| 3620 | 1164 { |
| 1165 int retval = -1; | |
| 1166 | |
| 3775 | 1167 #if defined (__GNUG__) && !CXX_ISO_COMPLIANT_LIBRARY |
| 3620 | 1168 |
| 4135 | 1169 std::streambuf *sb = os.rdbuf (); |
| 1170 | |
| 1171 if (sb) | |
| 4302 | 1172 { |
| 1173 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; | |
| 1174 | |
| 1175 retval = sb->vform (fmt, args); | |
| 1176 | |
| 1177 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; | |
| 1178 } | |
| 3620 | 1179 |
| 1180 #else | |
| 1181 | |
| 1182 char *s = octave_vsnprintf (fmt, args); | |
| 1183 | |
| 1184 if (s) | |
| 1185 { | |
| 1186 os << s; | |
| 1187 | |
| 1188 retval = strlen (s); | |
| 1189 } | |
| 1190 | |
| 1191 #endif | |
| 1192 | |
| 1193 return retval; | |
| 1194 } | |
| 1195 | |
| 4302 | 1196 // We manage storage. User should not free it, and its contents are |
| 1197 // only valid until next call to vsnprintf. | |
| 1198 | |
| 1199 // Interrupts might happen if someone makes a call with something that | |
| 1200 // will require a very large buffer. If we are interrupted in that | |
| 1201 // case, we should make the buffer size smaller for the next call. | |
| 1202 | |
| 1203 #define BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE_FOR_VSNPRINTF \ | |
| 1204 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE_1; \ | |
| 1205 delete [] buf; \ | |
| 1206 buf = 0; \ | |
| 1207 size = initial_size; \ | |
|
7481
78f3811155f7
use exceptions in liboctave error handler
John W. Eaton <jwe@octave.org>
parents:
7017
diff
changeset
|
1208 octave_rethrow_exception (); \ |
| 4302 | 1209 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE_2 |
| 1210 | |
| 4485 | 1211 #if defined __GNUC__ && defined __va_copy |
| 1212 #define SAVE_ARGS(saved_args, args) __va_copy (saved_args, args) | |
| 1213 #elif defined va_copy | |
| 1214 #define SAVE_ARGS(saved_args, args) va_copy (saved_args, args) | |
| 1215 #else | |
| 1216 #define SAVE_ARGS(saved_args, args) saved_args = args | |
| 1217 #endif | |
| 1218 | |
| 4302 | 1219 char * |
| 1220 octave_vsnprintf (const char *fmt, va_list args) | |
| 1221 { | |
| 1222 static const size_t initial_size = 100; | |
| 1223 | |
| 1224 static size_t size = initial_size; | |
| 1225 | |
| 1226 static char *buf = 0; | |
| 1227 | |
| 4482 | 1228 #if defined (HAVE_C99_VSNPRINTF) |
|
8929
379297a149f0
utils.cc (octave_vsnprintf): avoid uninitialized variable warning
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
1229 size_t nchars = 0; |
| 4482 | 1230 #else |
|
8929
379297a149f0
utils.cc (octave_vsnprintf): avoid uninitialized variable warning
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
1231 int nchars = 0; |
| 4482 | 1232 #endif |
| 4302 | 1233 |
| 1234 if (! buf) | |
| 1235 buf = new char [size]; | |
| 1236 | |
| 1237 if (! buf) | |
| 1238 return 0; | |
| 1239 | |
| 1240 #if defined (HAVE_C99_VSNPRINTF) | |
| 1241 | |
| 4485 | 1242 // Note that the caller is responsible for calling va_end on args. |
| 1243 // We will do it for saved_args. | |
| 1244 | |
| 1245 va_list saved_args; | |
| 1246 | |
| 1247 SAVE_ARGS (saved_args, args); | |
| 1248 | |
| 4302 | 1249 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE_FOR_VSNPRINTF; |
| 1250 | |
| 1251 nchars = octave_raw_vsnprintf (buf, size, fmt, args); | |
| 1252 | |
| 1253 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; | |
| 1254 | |
| 1255 if (nchars >= size) | |
| 1256 { | |
| 1257 size = nchars + 1; | |
| 1258 | |
| 1259 delete [] buf; | |
| 1260 | |
| 1261 buf = new char [size]; | |
| 1262 | |
| 1263 if (buf) | |
| 1264 { | |
| 1265 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE_FOR_VSNPRINTF; | |
| 1266 | |
| 4485 | 1267 octave_raw_vsnprintf (buf, size, fmt, saved_args); |
| 4302 | 1268 |
| 1269 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; | |
| 1270 } | |
| 1271 } | |
| 1272 | |
| 4485 | 1273 va_end (saved_args); |
| 1274 | |
| 4302 | 1275 #else |
| 1276 | |
| 1277 while (1) | |
| 1278 { | |
| 4485 | 1279 va_list saved_args; |
| 1280 | |
| 1281 SAVE_ARGS (saved_args, args); | |
| 1282 | |
| 4302 | 1283 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE_FOR_VSNPRINTF; |
| 1284 | |
| 4485 | 1285 nchars = octave_raw_vsnprintf (buf, size, fmt, saved_args); |
| 1286 | |
| 1287 va_end (saved_args); | |
| 4302 | 1288 |
| 1289 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; | |
| 1290 | |
| 4351 | 1291 if (nchars > -1 && nchars < size-1) |
| 4302 | 1292 return buf; |
| 1293 else | |
| 1294 { | |
| 1295 delete [] buf; | |
| 1296 | |
| 1297 size *= 2; | |
| 1298 | |
| 1299 buf = new char [size]; | |
| 1300 | |
| 1301 if (! buf) | |
| 1302 return 0; | |
| 1303 } | |
| 1304 } | |
| 1305 | |
| 1306 #endif | |
| 1307 | |
| 1308 return buf; | |
| 1309 } | |
| 1310 | |
| 1311 char * | |
| 1312 octave_snprintf (const char *fmt, ...) | |
| 1313 { | |
| 1314 char *retval = 0; | |
| 1315 | |
| 1316 va_list args; | |
| 1317 va_start (args, fmt); | |
| 1318 | |
| 1319 retval = octave_vsnprintf (fmt, args); | |
| 1320 | |
| 1321 va_end (args); | |
| 1322 | |
| 1323 return retval; | |
| 1324 } | |
| 1325 | |
| 4086 | 1326 void |
| 1327 octave_sleep (double seconds) | |
| 1328 { | |
| 1329 if (seconds > 0) | |
| 1330 { | |
| 1331 double t; | |
| 1332 | |
| 4093 | 1333 unsigned int usec |
| 4783 | 1334 = static_cast<unsigned int> (modf (seconds, &t) * 1000000); |
| 4086 | 1335 |
| 4093 | 1336 unsigned int sec |
| 4783 | 1337 = (t > UINT_MAX) ? UINT_MAX : static_cast<unsigned int> (t); |
| 4086 | 1338 |
| 5770 | 1339 // Versions of these functions that accept unsigned int args are |
| 1340 // defined in cutils.c. | |
| 4086 | 1341 octave_sleep (sec); |
| 1342 octave_usleep (usec); | |
|
10070
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correctly handle interrupts in pause()
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1343 |
|
10142
829e69ec3110
make OCTAVE_QUIT a function
Jaroslav Hajek <highegg@gmail.com>
parents:
10086
diff
changeset
|
1344 octave_quit (); |
| 4086 | 1345 } |
| 1346 } | |
| 1347 | |
|
9487
2894af292e69
implement isindex function
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1348 DEFUN (isindex, args, , |
|
2894af292e69
implement isindex function
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diff
changeset
|
1349 "-*- texinfo -*-\n\ |
|
2894af292e69
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parents:
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diff
changeset
|
1350 @deftypefn {Built-in Function} {} isindex (@var{ind}, @var{n})\n\ |
|
9758
09da0bd91412
Periodic grammar check of Octave documentation files to ensure common format
Rik <rdrider0-list@yahoo.com>
parents:
9705
diff
changeset
|
1351 Returns true if @var{ind} is a valid index. Valid indices can be\n\ |
|
9487
2894af292e69
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parents:
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diff
changeset
|
1352 either positive integers (though possibly real data), or logical arrays.\n\ |
|
2894af292e69
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diff
changeset
|
1353 If present, @var{n} specifies the extent of the dimension to be indexed.\n\ |
|
2894af292e69
implement isindex function
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parents:
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diff
changeset
|
1354 Note that, if possible, the internal conversion result is cached so that\n\ |
|
2894af292e69
implement isindex function
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diff
changeset
|
1355 subsequent indexing will not perform the checking again.\n\ |
|
2894af292e69
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diff
changeset
|
1356 @end deftypefn") |
|
2894af292e69
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diff
changeset
|
1357 { |
|
2894af292e69
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diff
changeset
|
1358 octave_value retval; |
|
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changeset
|
1359 int nargin = args.length (); |
|
2894af292e69
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changeset
|
1360 octave_idx_type n = 0; |
|
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diff
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|
1361 |
|
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diff
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|
1362 if (nargin == 2) |
|
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diff
changeset
|
1363 n = args(1).idx_type_value (); |
|
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diff
changeset
|
1364 else if (nargin != 1) |
|
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diff
changeset
|
1365 print_usage (); |
|
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changeset
|
1366 |
|
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|
1367 if (! error_state) |
|
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changeset
|
1368 { |
|
10066
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make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1369 unwind_protect frame; |
|
2cd940306a06
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diff
changeset
|
1370 frame.protect_var (error_state); |
|
2cd940306a06
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changeset
|
1371 frame.protect_var (discard_error_messages); |
|
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|
1372 discard_error_messages = true; |
|
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|
1373 |
|
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|
1374 try |
|
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|
1375 { |
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|
1376 idx_vector idx = args(0).index_vector (); |
|
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|
1377 if (! error_state) |
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|
1378 { |
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1379 if (nargin == 2) |
|
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1380 retval = idx.extent (n) <= n; |
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1381 else |
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|
1382 retval = true; |
|
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|
1383 } |
|
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|
1384 else |
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|
1385 retval = false; |
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|
1386 } |
|
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1387 catch (octave_execution_exception) |
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|
1388 { |
|
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|
1389 retval = false; |
|
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|
1390 } |
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|
1391 } |
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1392 |
|
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1393 return retval; |
|
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|
1394 } |
|
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1395 |
|
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|
1396 octave_value_list |
|
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1397 do_simple_cellfun (octave_value_list (*fun) (const octave_value_list&, int), |
|
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1398 const char *fun_name, const octave_value_list& args, |
|
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|
1399 int nargout) |
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1400 { |
|
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|
1401 octave_value_list new_args = args, retval; |
|
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1402 int nargin = args.length (); |
|
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changeset
|
1403 OCTAVE_LOCAL_BUFFER (bool, iscell, nargin); |
|
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Jaroslav Hajek <highegg@gmail.com>
parents:
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|
1404 OCTAVE_LOCAL_BUFFER (Cell, cells, nargin); |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
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|
1405 OCTAVE_LOCAL_BUFFER (Cell, rcells, nargout); |
|
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allow more cells in strfind/strrep + supply a general mechanism
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parents:
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diff
changeset
|
1406 |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
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|
1407 const Cell *ccells = cells; |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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|
1408 |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
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|
1409 octave_idx_type numel = 1; |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1410 dim_vector dims (1, 1); |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
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|
1411 |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
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|
1412 for (int i = 0; i < nargin; i++) |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1413 { |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1414 octave_value arg = new_args(i); |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1415 iscell[i] = arg.is_cell (); |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1416 if (iscell[i]) |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1417 { |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1418 cells[i] = arg.cell_value (); |
|
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
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|
1419 octave_idx_type n = ccells[i].numel (); |
|
76df75b10c80
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1420 if (n == 1) |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
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|
1421 { |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1422 iscell[i] = false; |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1423 new_args(i) = ccells[i](0); |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1424 } |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1425 else if (numel == 1) |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1426 { |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1427 numel = n; |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1428 dims = ccells[i].dims (); |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1429 } |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1430 else if (dims != ccells[i].dims ()) |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1431 { |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1432 error ("%s: cell arguments must have matching sizes", fun_name); |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1433 break; |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1434 } |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1435 } |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1436 } |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1437 |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1438 if (! error_state) |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1439 { |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1440 for (int i = 0; i < nargout; i++) |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1441 rcells[i].clear (dims); |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1442 |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1443 for (octave_idx_type j = 0; j < numel; j++) |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1444 { |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1445 for (int i = 0; i < nargin; i++) |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1446 if (iscell[i]) |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1447 new_args(i) = ccells[i](j); |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1448 |
|
10142
829e69ec3110
make OCTAVE_QUIT a function
Jaroslav Hajek <highegg@gmail.com>
parents:
10086
diff
changeset
|
1449 octave_quit (); |
|
10086
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1450 |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1451 const octave_value_list tmp = fun (new_args, nargout); |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1452 |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1453 if (tmp.length () < nargout) |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1454 { |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1455 error ("%s: do_simple_cellfun: internal error", fun_name); |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
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|
1456 break; |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1457 } |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1458 else |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1459 { |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1460 for (int i = 0; i < nargout; i++) |
|
76df75b10c80
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Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1461 rcells[i](j) = tmp(i); |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1462 } |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
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parents:
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diff
changeset
|
1463 } |
|
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allow more cells in strfind/strrep + supply a general mechanism
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parents:
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diff
changeset
|
1464 } |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
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parents:
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diff
changeset
|
1465 |
|
76df75b10c80
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1466 if (! error_state) |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1467 { |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1468 retval.resize (nargout); |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1469 for (int i = 0; i < nargout; i++) |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1470 retval(i) = rcells[i]; |
|
76df75b10c80
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parents:
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diff
changeset
|
1471 } |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
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parents:
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diff
changeset
|
1472 |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1473 return retval; |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1474 } |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1475 |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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changeset
|
1476 octave_value |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1477 do_simple_cellfun (octave_value_list (*fun) (const octave_value_list&, int), |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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changeset
|
1478 const char *fun_name, const octave_value_list& args) |
|
76df75b10c80
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1479 { |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1480 octave_value retval; |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1481 const octave_value_list tmp = do_simple_cellfun (fun, fun_name, args, 1); |
|
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allow more cells in strfind/strrep + supply a general mechanism
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parents:
10070
diff
changeset
|
1482 if (tmp.length () > 0) |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1483 retval = tmp(0); |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
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parents:
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changeset
|
1484 |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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changeset
|
1485 return retval; |
|
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allow more cells in strfind/strrep + supply a general mechanism
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parents:
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diff
changeset
|
1486 } |