Mercurial > hg > octave-nkf
annotate src/utils.cc @ 14005:f8556baf1949
rename octave_vsnprintf and octave_snprintf
* utils.h, utils.cc (octave_vasprintf): Rename from octave_vsnprintf.
Use gnulib:: tag for calling vasprintf. Change all callers
(octave_asprintf): Rename from octave_snprintf. Change all callers.
* build-aux/bootstrap.conf (gnulib_modules): Delete vsnprintf from the
list.
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Wed, 07 Dec 2011 06:47:15 -0500 |
| parents | 051a8f94b6f8 |
| children | 72c96de7a403 |
| rev | line source |
|---|---|
| 1 | 1 /* |
| 2 | |
| 11523 | 3 Copyright (C) 1993-2011 John W. Eaton |
| 11012 | 4 Copyright (C) 2010 VZLU Prague |
| 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 |
|
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39 #include "vasnprintf.h" |
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40 |
| 4302 | 41 #include "quit.h" |
| 42 | |
| 3040 | 43 #include "dir-ops.h" |
| 44 #include "file-ops.h" | |
| 2926 | 45 #include "file-stat.h" |
| 4732 | 46 #include "lo-mappers.h" |
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47 #include "lo-utils.h" |
| 1651 | 48 #include "oct-cmplx.h" |
| 2926 | 49 #include "oct-env.h" |
| 3040 | 50 #include "pathsearch.h" |
| 1755 | 51 #include "str-vec.h" |
| 1651 | 52 |
| 4216 | 53 #include "Cell.h" |
| 2492 | 54 #include <defaults.h> |
| 1352 | 55 #include "defun.h" |
| 56 #include "dirfns.h" | |
| 57 #include "error.h" | |
| 58 #include "gripes.h" | |
| 59 #include "input.h" | |
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60 #include "lex.h" |
| 5832 | 61 #include "load-path.h" |
| 5465 | 62 #include "oct-errno.h" |
| 1742 | 63 #include "oct-hist.h" |
| 1750 | 64 #include "oct-obj.h" |
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65 #include "ov-range.h" |
| 1352 | 66 #include "pager.h" |
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67 #include "parse.h" |
| 1690 | 68 #include "sysdep.h" |
| 1750 | 69 #include "toplev.h" |
| 1 | 70 #include "unwind-prot.h" |
| 1352 | 71 #include "utils.h" |
| 72 #include "variables.h" | |
| 1 | 73 |
| 4143 | 74 // Return TRUE if S is a valid identifier. |
| 75 | |
| 76 bool | |
| 77 valid_identifier (const char *s) | |
| 78 { | |
| 5290 | 79 if (! s || ! (isalpha (*s) || *s == '_' || *s == '$')) |
| 4143 | 80 return false; |
| 81 | |
| 82 while (*++s != '\0') | |
| 5290 | 83 if (! (isalnum (*s) || *s == '_' || *s == '$')) |
| 4143 | 84 return false; |
| 85 | |
| 86 return true; | |
| 87 } | |
| 88 | |
| 89 bool | |
| 90 valid_identifier (const std::string& s) | |
| 91 { | |
| 92 return valid_identifier (s.c_str ()); | |
| 93 } | |
| 94 | |
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95 DEFUN (isvarname, args, , |
| 5040 | 96 "-*- texinfo -*-\n\ |
| 97 @deftypefn {Built-in Function} {} isvarname (@var{name})\n\ | |
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98 Return true if @var{name} is a valid variable name.\n\ |
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99 @seealso{iskeyword, exist, who}\n\ |
| 4264 | 100 @end deftypefn") |
| 101 { | |
| 102 octave_value retval; | |
| 103 | |
| 104 int argc = args.length () + 1; | |
| 105 | |
| 4610 | 106 string_vector argv = args.make_argv ("isvarname"); |
| 4264 | 107 |
| 108 if (error_state) | |
| 109 return retval; | |
| 110 | |
| 111 if (argc == 2) | |
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112 retval = valid_identifier (argv[1]) && ! is_keyword (argv[1]); |
| 4264 | 113 else |
| 5823 | 114 print_usage (); |
| 4264 | 115 |
| 116 return retval; | |
| 117 } | |
| 118 | |
| 13094 | 119 /* |
| 120 %!error isvarname (); | |
| 121 %!error isvarname ("foo", "bar"); | |
| 122 | |
| 123 %!assert (isvarname ("foo"), true); | |
| 124 %!assert (isvarname ("_foo"), true); | |
| 125 %!assert (isvarname ("_1"), true); | |
| 126 %!assert (isvarname ("1foo"), false); | |
| 127 %!assert (isvarname (""), false); | |
| 128 */ | |
| 129 | |
| 6323 | 130 // Return TRUE if F and G are both names for the same file. |
| 131 | |
| 132 bool | |
| 133 same_file (const std::string& f, const std::string& g) | |
| 134 { | |
| 6598 | 135 return same_file_internal (f, g); |
| 6323 | 136 } |
| 137 | |
| 1 | 138 int |
| 3523 | 139 almost_match (const std::string& std, const std::string& s, int min_match_len, |
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140 int case_sens) |
| 1 | 141 { |
| 1755 | 142 int stdlen = std.length (); |
| 143 int slen = s.length (); | |
| 1 | 144 |
| 145 return (slen <= stdlen | |
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146 && slen >= min_match_len |
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147 && (case_sens |
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148 ? (strncmp (std.c_str (), s.c_str (), slen) == 0) |
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149 : (octave_strncasecmp (std.c_str (), s.c_str (), slen) == 0))); |
| 287 | 150 } |
| 151 | |
| 581 | 152 // Ugh. |
| 153 | |
| 287 | 154 int |
| 3523 | 155 keyword_almost_match (const char * const *std, int *min_len, const std::string& s, |
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156 int min_toks_to_match, int max_toks) |
| 287 | 157 { |
| 158 int status = 0; | |
| 159 int tok_count = 0; | |
| 160 int toks_matched = 0; | |
| 161 | |
| 1755 | 162 if (s.empty () || max_toks < 1) |
| 287 | 163 return status; |
| 164 | |
| 1755 | 165 char *kw = strsave (s.c_str ()); |
| 287 | 166 |
| 167 char *t = kw; | |
| 168 while (*t != '\0') | |
| 169 { | |
| 170 if (*t == '\t') | |
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171 *t = ' '; |
| 287 | 172 t++; |
| 173 } | |
| 174 | |
| 175 char *beg = kw; | |
| 176 while (*beg == ' ') | |
| 177 beg++; | |
| 178 | |
| 179 if (*beg == '\0') | |
| 180 return status; | |
| 181 | |
| 182 | |
| 3072 | 183 const char **to_match = new const char * [max_toks + 1]; |
| 184 const char * const *s1 = std; | |
| 185 const char **s2 = to_match; | |
| 287 | 186 |
| 526 | 187 if (! s1 || ! s2) |
| 287 | 188 goto done; |
| 189 | |
| 190 s2[tok_count] = beg; | |
| 191 char *end; | |
| 526 | 192 while ((end = strchr (beg, ' ')) != 0) |
| 287 | 193 { |
| 194 *end = '\0'; | |
| 195 beg = end + 1; | |
| 196 | |
| 197 while (*beg == ' ') | |
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198 beg++; |
| 287 | 199 |
| 200 if (*beg == '\0') | |
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201 break; |
| 287 | 202 |
| 203 tok_count++; | |
| 204 if (tok_count >= max_toks) | |
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205 goto done; |
| 287 | 206 |
| 207 s2[tok_count] = beg; | |
| 208 } | |
| 526 | 209 s2[tok_count+1] = 0; |
| 287 | 210 |
| 211 s2 = to_match; | |
| 212 | |
| 213 for (;;) | |
| 214 { | |
| 215 if (! almost_match (*s1, *s2, min_len[toks_matched], 0)) | |
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216 goto done; |
| 287 | 217 |
| 218 toks_matched++; | |
| 219 | |
| 220 s1++; | |
| 221 s2++; | |
| 222 | |
| 223 if (! *s2) | |
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224 { |
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225 status = (toks_matched >= min_toks_to_match); |
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226 goto done; |
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227 } |
| 287 | 228 |
| 229 if (! *s1) | |
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230 goto done; |
| 287 | 231 } |
| 232 | |
| 233 done: | |
| 234 | |
| 235 delete [] kw; | |
| 236 delete [] to_match; | |
| 237 | |
| 238 return status; | |
| 1 | 239 } |
| 240 | |
| 2234 | 241 // Return non-zero if either NR or NC is zero. Return -1 if this |
| 242 // should be considered fatal; return 1 if this is ok. | |
| 243 | |
| 244 int | |
| 5275 | 245 empty_arg (const char * /* name */, octave_idx_type nr, octave_idx_type nc) |
| 2234 | 246 { |
| 4478 | 247 return (nr == 0 || nc == 0); |
| 2234 | 248 } |
| 249 | |
| 581 | 250 // See if the given file is in the path. |
| 251 | |
| 3536 | 252 std::string |
| 4243 | 253 search_path_for_file (const std::string& path, const string_vector& names) |
| 686 | 254 { |
| 3174 | 255 dir_path p (path); |
| 686 | 256 |
| 10250 | 257 return octave_env::make_absolute (p.find_first_of (names)); |
| 686 | 258 } |
| 259 | |
| 4216 | 260 // Find all locations of the given file in the path. |
| 261 | |
| 262 string_vector | |
| 4243 | 263 search_path_for_all_files (const std::string& path, const string_vector& names) |
| 4216 | 264 { |
| 265 dir_path p (path); | |
| 266 | |
| 4243 | 267 string_vector sv = p.find_all_first_of (names); |
| 4216 | 268 |
| 6379 | 269 octave_idx_type len = sv.length (); |
| 4216 | 270 |
| 6379 | 271 for (octave_idx_type i = 0; i < len; i++) |
| 10250 | 272 sv[i] = octave_env::make_absolute (sv[i]); |
| 4216 | 273 |
| 274 return sv; | |
| 275 } | |
| 276 | |
| 277 static string_vector | |
| 278 make_absolute (const string_vector& sv) | |
| 279 { | |
| 6379 | 280 octave_idx_type len = sv.length (); |
| 281 | |
| 282 string_vector retval (len); | |
| 4216 | 283 |
| 6379 | 284 for (octave_idx_type i = 0; i < len; i++) |
| 10250 | 285 retval[i] = octave_env::make_absolute (sv[i]); |
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286 |
| 6379 | 287 return retval; |
| 4216 | 288 } |
| 289 | |
| 3195 | 290 DEFUN (file_in_loadpath, args, , |
| 3446 | 291 "-*- texinfo -*-\n\ |
| 10840 | 292 @deftypefn {Built-in Function} {} file_in_loadpath (@var{file})\n\ |
| 4216 | 293 @deftypefnx {Built-in Function} {} file_in_loadpath (@var{file}, \"all\")\n\ |
| 3195 | 294 \n\ |
| 5448 | 295 Return the absolute name of @var{file} if it can be found in\n\ |
| 5814 | 296 the list of directories specified by @code{path}.\n\ |
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297 If no file is found, return an empty character string.\n\ |
| 4216 | 298 \n\ |
| 5448 | 299 If the first argument is a cell array of strings, search each\n\ |
| 4243 | 300 directory of the loadpath for element of the cell array and return\n\ |
| 301 the first that matches.\n\ | |
| 302 \n\ | |
| 4216 | 303 If the second optional argument @code{\"all\"} is supplied, return\n\ |
| 304 a cell array containing the list of all files that have the same\n\ | |
| 305 name in the path. If no files are found, return an empty cell array.\n\ | |
| 5814 | 306 @seealso{file_in_path, path}\n\ |
| 5642 | 307 @end deftypefn") |
| 3195 | 308 { |
| 4216 | 309 octave_value retval; |
| 3195 | 310 |
| 4243 | 311 int nargin = args.length (); |
| 3195 | 312 |
| 4243 | 313 if (nargin == 1 || nargin == 2) |
| 4216 | 314 { |
| 4243 | 315 string_vector names = args(0).all_strings (); |
| 316 | |
| 317 if (! error_state && names.length () > 0) | |
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318 { |
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319 if (nargin == 1) |
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320 retval = octave_env::make_absolute (load_path::find_first_of (names)); |
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321 else if (nargin == 2) |
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322 { |
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323 std::string opt = args(1).string_value (); |
| 4243 | 324 |
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325 if (! error_state && opt == "all") |
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326 retval = Cell (make_absolute |
| 10250 | 327 (load_path::find_all_first_of (names))); |
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328 else |
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329 error ("file_in_loadpath: invalid option"); |
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330 } |
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331 } |
| 4216 | 332 else |
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333 error ("file_in_loadpath: FILE argument must be a string"); |
| 4216 | 334 } |
| 3195 | 335 else |
| 5823 | 336 print_usage (); |
| 3195 | 337 |
| 338 return retval; | |
| 339 } | |
| 340 | |
| 13094 | 341 /* |
| 342 %!error file_in_loadpath (); | |
| 343 %!error file_in_loadpath ("foo", "bar", 1); | |
| 344 | |
| 345 %!test | |
| 346 %! f = file_in_loadpath ("plot.m"); | |
| 347 %! assert (ischar (f)); | |
| 348 %! assert (! isempty (f)); | |
| 349 | |
| 350 %!test | |
| 351 %! f = file_in_loadpath ("$$probably_!!_not_&&_a_!!_file$$"); | |
| 352 %! assert (f, ""); | |
| 353 | |
| 354 %!test | |
| 355 %! lst = file_in_loadpath ("$$probably_!!_not_&&_a_!!_file$$", "all"); | |
| 356 %! assert (lst, {}); | |
| 357 */ | |
| 358 | |
| 1957 | 359 DEFUN (file_in_path, args, , |
| 3301 | 360 "-*- texinfo -*-\n\ |
| 10840 | 361 @deftypefn {Built-in Function} {} file_in_path (@var{path}, @var{file})\n\ |
| 4216 | 362 @deftypefnx {Built-in Function} {} file_in_path (@var{path}, @var{file}, \"all\")\n\ |
| 5448 | 363 Return the absolute name of @var{file} if it can be found in\n\ |
| 3301 | 364 @var{path}. The value of @var{path} should be a colon-separated list of\n\ |
| 5814 | 365 directories in the format described for @code{path}. If no file\n\ |
| 10840 | 366 is found, return an empty character string. For example:\n\ |
| 3301 | 367 \n\ |
| 368 @example\n\ | |
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369 @group\n\ |
| 5456 | 370 file_in_path (EXEC_PATH, \"sh\")\n\ |
| 371 @result{} \"/bin/sh\"\n\ | |
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372 @end group\n\ |
| 3301 | 373 @end example\n\ |
| 4216 | 374 \n\ |
| 5448 | 375 If the second argument is a cell array of strings, search each\n\ |
| 4243 | 376 directory of the path for element of the cell array and return\n\ |
| 377 the first that matches.\n\ | |
| 378 \n\ | |
| 4216 | 379 If the third optional argument @code{\"all\"} is supplied, return\n\ |
| 380 a cell array containing the list of all files that have the same\n\ | |
| 381 name in the path. If no files are found, return an empty cell array.\n\ | |
| 4249 | 382 @seealso{file_in_loadpath}\n\ |
| 3301 | 383 @end deftypefn") |
| 686 | 384 { |
| 4216 | 385 octave_value retval; |
| 686 | 386 |
| 4243 | 387 int nargin = args.length (); |
| 1755 | 388 |
| 4243 | 389 if (nargin == 2 || nargin == 3) |
| 686 | 390 { |
| 4243 | 391 std::string path = args(0).string_value (); |
| 392 | |
| 393 if (! error_state) | |
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394 { |
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395 string_vector names = args(1).all_strings (); |
| 4243 | 396 |
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397 if (! error_state && names.length () > 0) |
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398 { |
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399 if (nargin == 2) |
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400 retval = search_path_for_file (path, names); |
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401 else if (nargin == 3) |
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402 { |
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403 std::string opt = args(2).string_value (); |
| 4243 | 404 |
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405 if (! error_state && opt == "all") |
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406 retval = Cell (make_absolute |
| 10250 | 407 (search_path_for_all_files (path, names))); |
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408 else |
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409 error ("file_in_path: invalid option"); |
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410 } |
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411 } |
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412 else |
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413 error ("file_in_path: all arguments must be strings"); |
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414 } |
| 1755 | 415 else |
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416 error ("file_in_path: PATH must be a string"); |
| 686 | 417 } |
| 418 else | |
| 5823 | 419 print_usage (); |
| 686 | 420 |
| 421 return retval; | |
| 422 } | |
| 423 | |
| 13094 | 424 /* |
| 425 %!error file_in_path (); | |
| 426 %!error file_in_path ("foo"); | |
| 427 %!error file_in_path ("foo", "bar", "baz", 1); | |
| 428 | |
| 429 %!test | |
| 430 %! f = file_in_path (path (), "plot.m"); | |
| 431 %! assert (ischar (f)); | |
| 432 %! assert (! isempty (f)); | |
| 433 | |
| 434 %!test | |
| 435 %! f = file_in_path (path (), "$$probably_!!_not_&&_a_!!_file$$"); | |
| 436 %! assert (f, ""); | |
| 437 | |
| 438 %!test | |
| 439 %! lst = file_in_path (path (), "$$probably_!!_not_&&_a_!!_file$$", "all"); | |
| 440 %! assert (lst, {}); | |
| 441 */ | |
| 442 | |
| 3536 | 443 std::string |
| 3523 | 444 file_in_path (const std::string& name, const std::string& suffix) |
| 526 | 445 { |
| 3523 | 446 std::string nm = name; |
| 526 | 447 |
| 1755 | 448 if (! suffix.empty ()) |
| 449 nm.append (suffix); | |
| 686 | 450 |
| 10250 | 451 return octave_env::make_absolute (load_path::find_file (nm)); |
| 526 | 452 } |
| 453 | |
| 581 | 454 // See if there is an function file in the path. If so, return the |
| 455 // full path to the file. | |
| 456 | |
| 3536 | 457 std::string |
| 3523 | 458 fcn_file_in_path (const std::string& name) |
| 526 | 459 { |
| 3523 | 460 std::string retval; |
| 908 | 461 |
| 1755 | 462 int len = name.length (); |
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463 |
| 1755 | 464 if (len > 0) |
| 465 { | |
| 5832 | 466 if (octave_env::absolute_pathname (name)) |
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467 { |
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468 file_stat fs (name); |
| 5832 | 469 |
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470 if (fs.exists ()) |
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471 retval = name; |
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472 } |
| 5832 | 473 else if (len > 2 && name [len - 2] == '.' && name [len - 1] == 'm') |
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474 retval = load_path::find_fcn_file (name.substr (0, len-2)); |
| 908 | 475 else |
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476 { |
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477 std::string fname = name; |
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478 size_t pos = name.find_first_of (Vfilemarker); |
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479 if (pos != std::string::npos) |
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480 fname = name.substr (0, pos); |
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481 |
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482 retval = load_path::find_fcn_file (fname); |
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483 } |
| 908 | 484 } |
| 1755 | 485 |
| 486 return retval; | |
| 526 | 487 } |
| 488 | |
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489 // See if there is a directory called "name" in the path and if it |
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490 // contains a Contents.m file return the full path to this file. |
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491 |
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492 std::string |
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493 contents_file_in_path (const std::string& dir) |
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494 { |
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495 std::string retval; |
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496 |
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497 if (dir.length () > 0) |
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498 { |
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499 std::string tcontents = file_ops::concat (load_path::find_dir (dir), |
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500 std::string ("Contents.m")); |
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501 |
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502 file_stat fs (tcontents); |
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503 |
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504 if (fs.exists ()) |
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505 retval = octave_env::make_absolute (tcontents); |
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506 } |
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507 |
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508 return retval; |
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509 } |
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510 |
| 5864 | 511 // See if there is a .oct file in the path. If so, return the |
| 581 | 512 // full path to the file. |
| 513 | |
| 3536 | 514 std::string |
| 3523 | 515 oct_file_in_path (const std::string& name) |
| 572 | 516 { |
| 3523 | 517 std::string retval; |
| 908 | 518 |
| 1755 | 519 int len = name.length (); |
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520 |
| 1755 | 521 if (len > 0) |
| 522 { | |
| 5832 | 523 if (octave_env::absolute_pathname (name)) |
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524 { |
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525 file_stat fs (name); |
| 5832 | 526 |
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527 if (fs.exists ()) |
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528 retval = name; |
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529 } |
| 5832 | 530 else if (len > 4 && name [len - 4] == '.' && name [len - 3] == 'o' |
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531 && name [len - 2] == 'c' && name [len - 1] == 't') |
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532 retval = load_path::find_oct_file (name.substr (0, len-4)); |
| 908 | 533 else |
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534 retval = load_path::find_oct_file (name); |
| 908 | 535 } |
| 1755 | 536 |
| 537 return retval; | |
| 572 | 538 } |
| 539 | |
| 5864 | 540 // See if there is a .mex file in the path. If so, return the |
| 541 // full path to the file. | |
| 542 | |
| 543 std::string | |
| 544 mex_file_in_path (const std::string& name) | |
| 545 { | |
| 546 std::string retval; | |
| 547 | |
| 548 int len = name.length (); | |
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549 |
| 5864 | 550 if (len > 0) |
| 551 { | |
| 552 if (octave_env::absolute_pathname (name)) | |
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553 { |
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554 file_stat fs (name); |
| 5864 | 555 |
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556 if (fs.exists ()) |
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557 retval = name; |
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558 } |
| 5864 | 559 else if (len > 4 && name [len - 4] == '.' && name [len - 3] == 'm' |
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560 && name [len - 2] == 'e' && name [len - 1] == 'x') |
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561 retval = load_path::find_mex_file (name.substr (0, len-4)); |
| 5864 | 562 else |
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563 retval = load_path::find_mex_file (name); |
| 5864 | 564 } |
| 565 | |
| 566 return retval; | |
| 567 } | |
| 568 | |
| 3103 | 569 // Replace backslash escapes in a string with the real values. |
| 570 | |
| 3536 | 571 std::string |
| 3523 | 572 do_string_escapes (const std::string& s) |
| 3103 | 573 { |
| 3523 | 574 std::string retval; |
| 3103 | 575 |
| 576 size_t i = 0; | |
| 577 size_t j = 0; | |
| 578 size_t len = s.length (); | |
| 579 | |
| 580 retval.resize (len); | |
| 581 | |
| 582 while (j < len) | |
| 583 { | |
| 584 if (s[j] == '\\' && j+1 < len) | |
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585 { |
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586 switch (s[++j]) |
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587 { |
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588 case '0': |
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589 retval[i] = '\0'; |
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590 break; |
| 3893 | 591 |
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592 case 'a': |
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593 retval[i] = '\a'; |
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594 break; |
| 3103 | 595 |
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596 case 'b': // backspace |
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597 retval[i] = '\b'; |
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598 break; |
| 3103 | 599 |
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600 case 'f': // formfeed |
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601 retval[i] = '\f'; |
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602 break; |
| 3103 | 603 |
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604 case 'n': // newline |
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605 retval[i] = '\n'; |
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606 break; |
| 3103 | 607 |
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608 case 'r': // carriage return |
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609 retval[i] = '\r'; |
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610 break; |
| 3103 | 611 |
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612 case 't': // horizontal tab |
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613 retval[i] = '\t'; |
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614 break; |
| 3103 | 615 |
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616 case 'v': // vertical tab |
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617 retval[i] = '\v'; |
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618 break; |
| 3103 | 619 |
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620 case '\\': // backslash |
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621 retval[i] = '\\'; |
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622 break; |
| 3103 | 623 |
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624 case '\'': // quote |
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625 retval[i] = '\''; |
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626 break; |
| 3103 | 627 |
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628 case '"': // double quote |
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629 retval[i] = '"'; |
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630 break; |
| 3103 | 631 |
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632 default: |
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633 warning ("unrecognized escape sequence `\\%c' --\ |
| 3103 | 634 converting to `%c'", s[j], s[j]); |
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635 retval[i] = s[j]; |
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636 break; |
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637 } |
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638 } |
| 3103 | 639 else |
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640 { |
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641 retval[i] = s[j]; |
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642 } |
| 3103 | 643 |
| 644 i++; | |
| 645 j++; | |
| 646 } | |
| 647 | |
| 3105 | 648 retval.resize (i); |
| 3103 | 649 |
| 650 return retval; | |
| 651 } | |
| 652 | |
| 653 DEFUN (do_string_escapes, args, , | |
| 3446 | 654 "-*- texinfo -*-\n\ |
| 655 @deftypefn {Built-in Function} {} do_string_escapes (@var{string})\n\ | |
| 656 Convert special characters in @var{string} to their escaped forms.\n\ | |
| 657 @end deftypefn") | |
| 3103 | 658 { |
| 659 octave_value retval; | |
| 660 | |
| 661 int nargin = args.length (); | |
| 662 | |
| 663 if (nargin == 1) | |
| 664 { | |
| 665 if (args(0).is_string ()) | |
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666 retval = do_string_escapes (args(0).string_value ()); |
| 3103 | 667 else |
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668 error ("do_string_escapes: STRING argument must be of type string"); |
| 3103 | 669 } |
| 670 else | |
| 5823 | 671 print_usage (); |
| 3103 | 672 |
| 673 return retval; | |
| 674 } | |
| 675 | |
| 13094 | 676 /* |
| 677 %!error do_string_escapes (); | |
| 678 %!error do_string_escapes ("foo", "bar"); | |
| 679 | |
| 680 %!assert (do_string_escapes ('foo\nbar'), "foo\nbar"); | |
| 681 %!assert (do_string_escapes ("foo\\nbar"), "foo\nbar"); | |
| 682 %!assert (do_string_escapes ("foo\\nbar"), ["foo", char(10), "bar"]); | |
|
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683 %!assert ("foo\nbar", ["foo", char(10), "bar"]); |
| 13094 | 684 |
| 685 %!assert (do_string_escapes ('\a\b\f\n\r\t\v'), "\a\b\f\n\r\t\v"); | |
| 686 %!assert (do_string_escapes ("\\a\\b\\f\\n\\r\\t\\v"), "\a\b\f\n\r\t\v"); | |
| 687 %!assert (do_string_escapes ("\\a\\b\\f\\n\\r\\t\\v"), | |
| 688 %! char ([7, 8, 12, 10, 13, 9, 11])); | |
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689 %!assert ("\a\b\f\n\r\t\v", char ([7, 8, 12, 10, 13, 9, 11])); |
| 13094 | 690 */ |
| 691 | |
| 1755 | 692 const char * |
| 801 | 693 undo_string_escape (char c) |
| 694 { | |
| 695 if (! c) | |
| 1755 | 696 return ""; |
| 801 | 697 |
| 698 switch (c) | |
| 699 { | |
| 3893 | 700 case '\0': |
| 701 return "\\0"; | |
| 702 | |
| 801 | 703 case '\a': |
| 704 return "\\a"; | |
| 705 | |
| 706 case '\b': // backspace | |
| 707 return "\\b"; | |
| 708 | |
| 709 case '\f': // formfeed | |
| 710 return "\\f"; | |
| 711 | |
| 712 case '\n': // newline | |
| 713 return "\\n"; | |
| 714 | |
| 715 case '\r': // carriage return | |
| 716 return "\\r"; | |
| 717 | |
| 718 case '\t': // horizontal tab | |
| 719 return "\\t"; | |
| 720 | |
| 721 case '\v': // vertical tab | |
| 722 return "\\v"; | |
| 723 | |
| 724 case '\\': // backslash | |
| 725 return "\\\\"; | |
| 726 | |
| 727 case '"': // double quote | |
| 728 return "\\\""; | |
| 729 | |
| 730 default: | |
| 1755 | 731 { |
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732 static char retval[2]; |
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733 retval[0] = c; |
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734 retval[1] = '\0'; |
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735 return retval; |
| 1755 | 736 } |
| 801 | 737 } |
| 738 } | |
| 739 | |
| 3536 | 740 std::string |
| 3523 | 741 undo_string_escapes (const std::string& s) |
| 801 | 742 { |
| 3523 | 743 std::string retval; |
| 801 | 744 |
| 1755 | 745 for (size_t i = 0; i < s.length (); i++) |
| 746 retval.append (undo_string_escape (s[i])); | |
| 801 | 747 |
| 1755 | 748 return retval; |
| 801 | 749 } |
| 750 | |
| 1957 | 751 DEFUN (undo_string_escapes, args, , |
| 3361 | 752 "-*- texinfo -*-\n\ |
| 753 @deftypefn {Built-in Function} {} undo_string_escapes (@var{s})\n\ | |
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754 Convert special characters in strings back to their escaped forms. For\n\ |
| 3361 | 755 example, the expression\n\ |
| 756 \n\ | |
| 757 @example\n\ | |
| 758 bell = \"\\a\";\n\ | |
| 759 @end example\n\ | |
| 760 \n\ | |
| 761 @noindent\n\ | |
| 762 assigns the value of the alert character (control-g, ASCII code 7) to\n\ | |
| 763 the string variable @code{bell}. If this string is printed, the\n\ | |
| 764 system will ring the terminal bell (if it is possible). This is\n\ | |
| 765 normally the desired outcome. However, sometimes it is useful to be\n\ | |
| 766 able to print the original representation of the string, with the\n\ | |
| 767 special characters replaced by their escape sequences. For example,\n\ | |
| 768 \n\ | |
| 769 @example\n\ | |
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770 @group\n\ |
| 3361 | 771 octave:13> undo_string_escapes (bell)\n\ |
| 772 ans = \\a\n\ | |
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773 @end group\n\ |
| 3361 | 774 @end example\n\ |
| 775 \n\ | |
| 776 @noindent\n\ | |
| 777 replaces the unprintable alert character with its printable\n\ | |
| 778 representation.\n\ | |
| 779 @end deftypefn") | |
| 801 | 780 { |
| 2086 | 781 octave_value retval; |
| 801 | 782 |
| 783 int nargin = args.length (); | |
| 784 | |
| 3103 | 785 if (nargin == 1) |
| 786 { | |
| 787 if (args(0).is_string ()) | |
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788 retval = undo_string_escapes (args(0).string_value ()); |
| 3103 | 789 else |
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790 error ("undo_string_escapes: S argument must be a string"); |
| 3103 | 791 } |
| 801 | 792 else |
| 5823 | 793 print_usage (); |
| 801 | 794 |
| 795 return retval; | |
| 796 } | |
| 797 | |
| 13094 | 798 /* |
| 799 %!error undo_string_escapes (); | |
| 800 %!error undo_string_escapes ("foo", "bar"); | |
| 801 | |
| 802 %!assert (undo_string_escapes ("foo\nbar"), 'foo\nbar'); | |
| 803 %!assert (undo_string_escapes ("foo\nbar"), "foo\\nbar"); | |
| 804 %!assert (undo_string_escapes (["foo", char(10), "bar"]), "foo\\nbar"); | |
| 805 | |
| 806 %!assert (undo_string_escapes ("\a\b\f\n\r\t\v"), '\a\b\f\n\r\t\v'); | |
| 807 %!assert (undo_string_escapes ("\a\b\f\n\r\t\v"), "\\a\\b\\f\\n\\r\\t\\v"); | |
| 808 %!assert (undo_string_escapes (char ([7, 8, 12, 10, 13, 9, 11])), | |
| 809 %! "\\a\\b\\f\\n\\r\\t\\v"); | |
| 810 */ | |
| 811 | |
| 8229 | 812 DEFUN (is_absolute_filename, args, , |
| 813 "-*- texinfo -*-\n\ | |
| 814 @deftypefn {Built-in Function} {} is_absolute_filename (@var{file})\n\ | |
| 815 Return true if @var{file} is an absolute filename.\n\ | |
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816 @seealso{is_rooted_relative_filename, make_absolute_filename, isdir}\n\ |
| 8229 | 817 @end deftypefn") |
| 818 { | |
| 819 octave_value retval = false; | |
| 820 | |
| 821 if (args.length () == 1) | |
| 822 retval = (args(0).is_string () | |
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823 && octave_env::absolute_pathname (args(0).string_value ())); |
| 8229 | 824 else |
| 825 print_usage (); | |
| 826 | |
| 827 return retval; | |
| 828 } | |
| 829 | |
| 13094 | 830 /* |
| 831 %!error is_absolute_filename (); | |
| 832 %!error is_absolute_filename ("foo", "bar"); | |
| 833 | |
| 834 FIXME -- we need system-dependent tests here. | |
| 835 */ | |
| 836 | |
| 8229 | 837 DEFUN (is_rooted_relative_filename, args, , |
| 838 "-*- texinfo -*-\n\ | |
| 839 @deftypefn {Built-in Function} {} is_rooted_relative_filename (@var{file})\n\ | |
| 840 Return true if @var{file} is a rooted-relative filename.\n\ | |
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841 @seealso{is_absolute_filename, make_absolute_filename, isdir}\n\ |
| 8229 | 842 @end deftypefn") |
| 843 { | |
| 844 octave_value retval = false; | |
| 845 | |
| 846 if (args.length () == 1) | |
| 847 retval = (args(0).is_string () | |
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848 && octave_env::rooted_relative_pathname (args(0).string_value ())); |
| 8229 | 849 else |
| 850 print_usage (); | |
| 851 | |
| 852 return retval; | |
| 853 } | |
| 854 | |
| 13094 | 855 /* |
| 856 %!error is_rooted_relative_filename (); | |
| 857 %!error is_rooted_relative_filename ("foo", "bar"); | |
| 858 | |
| 859 FIXME -- we need system-dependent tests here. | |
| 860 */ | |
| 861 | |
| 8229 | 862 DEFUN (make_absolute_filename, args, , |
| 863 "-*- texinfo -*-\n\ | |
| 864 @deftypefn {Built-in Function} {} make_absolute_filename (@var{file})\n\ | |
| 865 Return the full name of @var{file}, relative to the current directory.\n\ | |
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866 @seealso{is_absolute_filename, is_rooted_relative_filename, isdir}\n\ |
| 8229 | 867 @end deftypefn") |
| 868 { | |
| 869 octave_value retval = std::string (); | |
| 870 | |
| 871 if (args.length () == 1) | |
| 872 { | |
| 873 std::string nm = args(0).string_value (); | |
| 874 | |
| 875 if (! error_state) | |
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876 retval = octave_env::make_absolute (nm); |
| 8229 | 877 else |
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878 error ("make_absolute_filename: FILE argument must be a file name"); |
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879 } |
| 8229 | 880 else |
| 881 print_usage (); | |
| 882 | |
| 883 return retval; | |
| 884 } | |
| 885 | |
| 13094 | 886 /* |
| 887 %!error make_absolute_filename (); | |
| 888 %!error make_absolute_filename ("foo", "bar"); | |
| 889 | |
| 890 FIXME -- we need system-dependent tests here. | |
| 891 */ | |
| 892 | |
| 8229 | 893 DEFUN (find_dir_in_path, args, , |
| 894 "-*- texinfo -*-\n\ | |
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895 @deftypefn {Built-in Function} {} find_dir_in_path (@var{dir})\n\ |
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896 @deftypefnx {Built-in Function} {} find_dir_in_path (@var{dir}, \"all\")\n\ |
| 8229 | 897 Return the full name of the path element matching @var{dir}. The\n\ |
| 898 match is performed at the end of each path element. For example, if\n\ | |
| 899 @var{dir} is @code{\"foo/bar\"}, it matches the path element\n\ | |
| 900 @code{\"/some/dir/foo/bar\"}, but not @code{\"/some/dir/foo/bar/baz\"}\n\ | |
| 8715 | 901 or @code{\"/some/dir/allfoo/bar\"}.\n\ |
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902 \n\ |
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903 The second argument is optional. If it is supplied, return a cell array\n\ |
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904 containing all name matches rather than just the first.\n\ |
| 8229 | 905 @end deftypefn") |
| 906 { | |
| 907 octave_value retval = std::string (); | |
| 908 | |
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909 int nargin = args.length (); |
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910 |
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911 std::string dir; |
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912 |
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913 if (nargin == 1 || nargin == 2) |
| 8229 | 914 { |
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915 dir = args(0).string_value (); |
| 8229 | 916 |
| 917 if (! error_state) | |
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918 { |
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919 if (nargin == 1) |
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920 retval = load_path::find_dir (dir); |
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921 else if (nargin == 2) |
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922 retval = Cell (load_path::find_matching_dirs (dir)); |
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923 } |
| 8229 | 924 else |
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925 error ("find_dir_in_path: DIR must be a directory name"); |
| 8229 | 926 } |
| 927 else | |
| 928 print_usage (); | |
| 929 | |
| 930 return retval; | |
| 931 } | |
| 932 | |
| 13094 | 933 /* |
| 934 %!error find_dir_in_path (); | |
| 935 %!error find_dir_in_path ("foo", "bar", 1); | |
| 936 | |
| 937 FIXME -- need to create tests using current path, pathsep, and dirsep. | |
| 938 */ | |
| 939 | |
| 5465 | 940 DEFUNX ("errno", Ferrno, args, , |
| 3716 | 941 "-*- texinfo -*-\n\ |
| 10840 | 942 @deftypefn {Built-in Function} {@var{err} =} errno ()\n\ |
| 5465 | 943 @deftypefnx {Built-in Function} {@var{err} =} errno (@var{val})\n\ |
| 944 @deftypefnx {Built-in Function} {@var{err} =} errno (@var{name})\n\ | |
| 945 Return the current value of the system-dependent variable errno,\n\ | |
| 946 set its value to @var{val} and return the previous value, or return\n\ | |
| 947 the named error code given @var{name} as a character string, or -1\n\ | |
| 948 if @var{name} is not found.\n\ | |
| 3716 | 949 @end deftypefn") |
| 950 { | |
| 951 octave_value retval; | |
| 952 | |
| 5465 | 953 int nargin = args.length (); |
| 954 | |
| 955 if (nargin == 1) | |
| 956 { | |
| 957 if (args(0).is_string ()) | |
|
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958 { |
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959 std::string nm = args(0).string_value (); |
| 5465 | 960 |
|
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961 if (! error_state) |
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962 retval = octave_errno::lookup (nm); |
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963 else |
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964 error ("errno: expecting character string argument"); |
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965 } |
| 5465 | 966 else |
|
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967 { |
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968 int val = args(0).int_value (); |
| 5465 | 969 |
|
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970 if (! error_state) |
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971 retval = octave_errno::set (val); |
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972 else |
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973 error ("errno: expecting integer argument"); |
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974 } |
| 5465 | 975 } |
| 976 else if (nargin == 0) | |
| 977 retval = octave_errno::get (); | |
| 3716 | 978 else |
| 5823 | 979 print_usage (); |
| 3716 | 980 |
| 981 return retval; | |
| 982 } | |
| 983 | |
| 13094 | 984 /* |
| 985 %!error errno ("foo", 1); | |
| 986 | |
| 987 %!assert (isnumeric (errno ())); | |
| 988 | |
| 989 %!test | |
| 990 %! lst = errno_list (); | |
| 991 %! fns = fieldnames (lst); | |
| 992 %! oldval = errno (fns{1}); | |
| 993 %! assert (isnumeric (oldval)); | |
| 994 %! errno (oldval); | |
| 995 %! newval = errno (); | |
| 996 %! assert (oldval, newval); | |
| 997 */ | |
| 998 | |
| 5465 | 999 DEFUN (errno_list, args, , |
| 1000 "-*- texinfo -*-\n\ | |
| 1001 @deftypefn {Built-in Function} {} errno_list ()\n\ | |
| 1002 Return a structure containing the system-dependent errno values.\n\ | |
| 1003 @end deftypefn") | |
| 1004 { | |
| 1005 octave_value retval; | |
| 1006 | |
| 1007 if (args.length () == 0) | |
| 1008 retval = octave_errno::list (); | |
| 1009 else | |
| 5823 | 1010 print_usage (); |
| 5465 | 1011 |
| 1012 return retval; | |
| 1013 } | |
| 3716 | 1014 |
| 13094 | 1015 /* |
| 1016 %!error errno_list ("foo"); | |
| 1017 | |
| 1018 %!assert (isstruct (errno_list ())); | |
| 1019 */ | |
| 1020 | |
| 2285 | 1021 static void |
| 5275 | 1022 check_dimensions (octave_idx_type& nr, octave_idx_type& nc, const char *warnfor) |
| 3354 | 1023 { |
| 1024 if (nr < 0 || nc < 0) | |
| 1025 { | |
| 5781 | 1026 warning_with_id ("Octave:neg-dim-as-zero", |
|
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1027 "%s: converting negative dimension to zero", warnfor); |
| 3354 | 1028 |
| 4457 | 1029 nr = (nr < 0) ? 0 : nr; |
| 1030 nc = (nc < 0) ? 0 : nc; | |
| 3354 | 1031 } |
| 1032 } | |
| 1033 | |
| 1034 void | |
| 4513 | 1035 check_dimensions (dim_vector& dim, const char *warnfor) |
| 4481 | 1036 { |
| 1037 bool neg = false; | |
| 1038 | |
| 1039 for (int i = 0; i < dim.length (); i++) | |
| 1040 { | |
| 1041 if (dim(i) < 0) | |
| 1042 { | |
| 1043 dim(i) = 0; | |
| 1044 neg = true; | |
| 1045 } | |
| 1046 } | |
| 1047 | |
| 5781 | 1048 if (neg) |
| 1049 warning_with_id ("Octave:neg-dim-as-zero", | |
|
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1050 "%s: converting negative dimension to zero", warnfor); |
| 4481 | 1051 } |
| 1052 | |
| 1053 | |
| 1054 void | |
| 1055 get_dimensions (const octave_value& a, const char *warn_for, | |
| 4513 | 1056 dim_vector& dim) |
| 4481 | 1057 { |
| 1058 if (a.is_scalar_type ()) | |
| 1059 { | |
| 1060 dim.resize (2); | |
| 4732 | 1061 dim(0) = a.int_value (); |
| 4481 | 1062 dim(1) = dim(0); |
| 1063 } | |
| 1064 else | |
| 1065 { | |
| 5275 | 1066 octave_idx_type nr = a.rows (); |
| 1067 octave_idx_type nc = a.columns (); | |
| 4481 | 1068 |
| 1069 if (nr == 1 || nc == 1) | |
| 1070 { | |
| 1071 Array<double> v = a.vector_value (); | |
| 1072 | |
| 1073 if (error_state) | |
| 1074 return; | |
| 1075 | |
| 5275 | 1076 octave_idx_type n = v.length (); |
| 4481 | 1077 dim.resize (n); |
| 5275 | 1078 for (octave_idx_type i = 0; i < n; i++) |
| 4783 | 1079 dim(i) = static_cast<int> (fix (v(i))); |
| 4481 | 1080 } |
| 1081 else | |
| 5257 | 1082 error ("%s (A): use %s (size (A)) instead", warn_for, warn_for); |
| 4481 | 1083 } |
| 1084 | |
| 5258 | 1085 if (! error_state) |
| 1086 check_dimensions (dim, warn_for); // May set error_state. | |
| 4481 | 1087 } |
| 1088 | |
| 1089 | |
| 1090 void | |
| 3354 | 1091 get_dimensions (const octave_value& a, const char *warn_for, |
|
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1092 octave_idx_type& nr, octave_idx_type& nc) |
| 3354 | 1093 { |
| 1094 if (a.is_scalar_type ()) | |
| 1095 { | |
| 4732 | 1096 nr = nc = a.int_value (); |
| 3354 | 1097 } |
| 1098 else | |
| 1099 { | |
| 1100 nr = a.rows (); | |
| 1101 nc = a.columns (); | |
| 1102 | |
| 1103 if ((nr == 1 && nc == 2) || (nr == 2 && nc == 1)) | |
|
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1104 { |
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1105 Array<double> v = a.vector_value (); |
| 3354 | 1106 |
|
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1107 if (error_state) |
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1108 return; |
| 3354 | 1109 |
|
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1110 nr = static_cast<octave_idx_type> (fix (v (0))); |
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1111 nc = static_cast<octave_idx_type> (fix (v (1))); |
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1112 } |
| 3354 | 1113 else |
|
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1114 error ("%s (A): use %s (size (A)) instead", warn_for, warn_for); |
| 3354 | 1115 } |
| 1116 | |
| 5258 | 1117 if (! error_state) |
| 1118 check_dimensions (nr, nc, warn_for); // May set error_state. | |
| 3354 | 1119 } |
| 1120 | |
| 1121 void | |
| 1122 get_dimensions (const octave_value& a, const octave_value& b, | |
|
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1123 const char *warn_for, octave_idx_type& nr, octave_idx_type& nc) |
| 3354 | 1124 { |
| 4732 | 1125 nr = a.is_empty () ? 0 : a.int_value (); |
| 1126 nc = b.is_empty () ? 0 : b.int_value (); | |
| 3354 | 1127 |
| 1128 if (error_state) | |
| 1129 error ("%s: expecting two scalar arguments", warn_for); | |
| 1130 else | |
| 1131 check_dimensions (nr, nc, warn_for); // May set error_state. | |
| 1132 } | |
| 1133 | |
|
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1134 octave_idx_type |
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1135 dims_to_numel (const dim_vector& dims, const octave_value_list& idx) |
|
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1136 { |
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1137 octave_idx_type retval; |
|
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1138 |
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1139 octave_idx_type len = idx.length (); |
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1140 |
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1141 if (len == 0) |
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1142 retval = dims.numel (); |
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1143 else |
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1144 { |
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1145 const dim_vector dv = dims.redim (len); |
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1146 retval = 1; |
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1147 for (octave_idx_type i = 0; i < len; i++) |
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1148 { |
|
9842
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1149 octave_value idxi = idx(i); |
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1150 if (idxi.is_magic_colon ()) |
|
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1151 retval *= dv(i); |
|
9842
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1152 else if (idxi.is_numeric_type ()) |
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1153 retval *= idxi.numel (); |
|
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1154 else |
|
9842
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1155 { |
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1156 idx_vector jdx = idxi.index_vector (); |
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1157 if (error_state) |
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1158 break; |
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1159 retval *= jdx.length (dv(i)); |
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1160 } |
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1161 } |
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1162 } |
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1163 |
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1164 return retval; |
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1165 } |
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1166 |
| 4478 | 1167 Matrix |
| 5275 | 1168 identity_matrix (octave_idx_type nr, octave_idx_type nc) |
| 4478 | 1169 { |
| 1170 Matrix m (nr, nc, 0.0); | |
| 1171 | |
| 1172 if (nr > 0 && nc > 0) | |
| 1173 { | |
| 5275 | 1174 octave_idx_type n = std::min (nr, nc); |
| 4478 | 1175 |
| 5275 | 1176 for (octave_idx_type i = 0; i < n; i++) |
|
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1177 m (i, i) = 1.0; |
| 4478 | 1178 } |
| 1179 | |
| 1180 return m; | |
| 1181 } | |
| 1182 | |
|
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1183 FloatMatrix |
|
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1184 float_identity_matrix (octave_idx_type nr, octave_idx_type nc) |
|
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1185 { |
|
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1186 FloatMatrix m (nr, nc, 0.0); |
|
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1187 |
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1188 if (nr > 0 && nc > 0) |
|
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1189 { |
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1190 octave_idx_type n = std::min (nr, nc); |
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1191 |
|
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1192 for (octave_idx_type i = 0; i < n; i++) |
|
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1193 m (i, i) = 1.0; |
|
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1194 } |
|
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1195 |
|
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1196 return m; |
|
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1197 } |
|
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1198 |
|
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1199 size_t |
| 3622 | 1200 octave_format (std::ostream& os, const char *fmt, ...) |
| 3620 | 1201 { |
|
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1202 size_t retval; |
| 3620 | 1203 |
| 1204 va_list args; | |
| 1205 va_start (args, fmt); | |
| 1206 | |
| 1207 retval = octave_vformat (os, fmt, args); | |
| 1208 | |
| 1209 va_end (args); | |
| 1210 | |
| 1211 return retval; | |
| 1212 } | |
| 1213 | |
|
13991
051a8f94b6f8
avoid memory issue with octave_vsnprintf
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1214 size_t |
| 3622 | 1215 octave_vformat (std::ostream& os, const char *fmt, va_list args) |
| 3620 | 1216 { |
|
14005
f8556baf1949
rename octave_vsnprintf and octave_snprintf
John W. Eaton <jwe@octave.org>
parents:
13991
diff
changeset
|
1217 std::string s = octave_vasprintf (fmt, args); |
| 3620 | 1218 |
|
13991
051a8f94b6f8
avoid memory issue with octave_vsnprintf
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1219 os << s; |
| 3620 | 1220 |
|
13991
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John W. Eaton <jwe@octave.org>
parents:
13932
diff
changeset
|
1221 return s.length (); |
|
051a8f94b6f8
avoid memory issue with octave_vsnprintf
John W. Eaton <jwe@octave.org>
parents:
13932
diff
changeset
|
1222 } |
| 4135 | 1223 |
|
13991
051a8f94b6f8
avoid memory issue with octave_vsnprintf
John W. Eaton <jwe@octave.org>
parents:
13932
diff
changeset
|
1224 std::string |
|
14005
f8556baf1949
rename octave_vsnprintf and octave_snprintf
John W. Eaton <jwe@octave.org>
parents:
13991
diff
changeset
|
1225 octave_vasprintf (const char *fmt, va_list args) |
|
13991
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avoid memory issue with octave_vsnprintf
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1226 { |
|
051a8f94b6f8
avoid memory issue with octave_vsnprintf
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1227 std::string retval; |
|
051a8f94b6f8
avoid memory issue with octave_vsnprintf
John W. Eaton <jwe@octave.org>
parents:
13932
diff
changeset
|
1228 |
|
051a8f94b6f8
avoid memory issue with octave_vsnprintf
John W. Eaton <jwe@octave.org>
parents:
13932
diff
changeset
|
1229 char *result; |
| 4302 | 1230 |
|
14005
f8556baf1949
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John W. Eaton <jwe@octave.org>
parents:
13991
diff
changeset
|
1231 int status = gnulib::vasprintf (&result, fmt, args); |
| 4302 | 1232 |
|
13991
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avoid memory issue with octave_vsnprintf
John W. Eaton <jwe@octave.org>
parents:
13932
diff
changeset
|
1233 if (status >= 0) |
|
051a8f94b6f8
avoid memory issue with octave_vsnprintf
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1234 { |
|
051a8f94b6f8
avoid memory issue with octave_vsnprintf
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1235 retval = result; |
|
051a8f94b6f8
avoid memory issue with octave_vsnprintf
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1236 ::free (result); |
| 4302 | 1237 } |
| 3620 | 1238 |
| 1239 return retval; | |
| 1240 } | |
| 1241 | |
|
13991
051a8f94b6f8
avoid memory issue with octave_vsnprintf
John W. Eaton <jwe@octave.org>
parents:
13932
diff
changeset
|
1242 std::string |
|
14005
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rename octave_vsnprintf and octave_snprintf
John W. Eaton <jwe@octave.org>
parents:
13991
diff
changeset
|
1243 octave_asprintf (const char *fmt, ...) |
| 4302 | 1244 { |
|
13991
051a8f94b6f8
avoid memory issue with octave_vsnprintf
John W. Eaton <jwe@octave.org>
parents:
13932
diff
changeset
|
1245 std::string retval; |
| 4302 | 1246 |
| 1247 va_list args; | |
| 1248 va_start (args, fmt); | |
| 1249 | |
|
14005
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rename octave_vsnprintf and octave_snprintf
John W. Eaton <jwe@octave.org>
parents:
13991
diff
changeset
|
1250 retval = octave_vasprintf (fmt, args); |
| 4302 | 1251 |
| 1252 va_end (args); | |
| 1253 | |
| 1254 return retval; | |
| 1255 } | |
| 1256 | |
| 4086 | 1257 void |
| 1258 octave_sleep (double seconds) | |
| 1259 { | |
| 1260 if (seconds > 0) | |
| 1261 { | |
| 1262 double t; | |
| 1263 | |
| 4093 | 1264 unsigned int usec |
|
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10257
diff
changeset
|
1265 = static_cast<unsigned int> (modf (seconds, &t) * 1000000); |
| 4086 | 1266 |
| 4093 | 1267 unsigned int sec |
|
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10257
diff
changeset
|
1268 = (t > UINT_MAX) ? UINT_MAX : static_cast<unsigned int> (t); |
| 4086 | 1269 |
| 5770 | 1270 // Versions of these functions that accept unsigned int args are |
| 1271 // defined in cutils.c. | |
| 4086 | 1272 octave_sleep (sec); |
| 1273 octave_usleep (usec); | |
|
10070
897e62651c0a
correctly handle interrupts in pause()
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parents:
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diff
changeset
|
1274 |
|
10142
829e69ec3110
make OCTAVE_QUIT a function
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parents:
10086
diff
changeset
|
1275 octave_quit (); |
| 4086 | 1276 } |
| 1277 } | |
| 1278 | |
|
9487
2894af292e69
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|
1279 DEFUN (isindex, args, , |
|
2894af292e69
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diff
changeset
|
1280 "-*- texinfo -*-\n\ |
|
11431
0d9640d755b1
Improve docstrings for all isXXX functions.
Rik <octave@nomad.inbox5.com>
parents:
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diff
changeset
|
1281 @deftypefn {Built-in Function} {} isindex (@var{ind})\n\ |
|
0d9640d755b1
Improve docstrings for all isXXX functions.
Rik <octave@nomad.inbox5.com>
parents:
11066
diff
changeset
|
1282 @deftypefnx {Built-in Function} {} isindex (@var{ind}, @var{n})\n\ |
|
0d9640d755b1
Improve docstrings for all isXXX functions.
Rik <octave@nomad.inbox5.com>
parents:
11066
diff
changeset
|
1283 Return true if @var{ind} is a valid index. Valid indices are\n\ |
|
11575
d6619410e79c
Spellcheck documentation before 3.4 release.
Rik <octave@nomad.inbox5.com>
parents:
11572
diff
changeset
|
1284 either positive integers (although possibly of real data type), or logical\n\ |
|
11431
0d9640d755b1
Improve docstrings for all isXXX functions.
Rik <octave@nomad.inbox5.com>
parents:
11066
diff
changeset
|
1285 arrays. If present, @var{n} specifies the maximum extent of the dimension\n\ |
|
0d9640d755b1
Improve docstrings for all isXXX functions.
Rik <octave@nomad.inbox5.com>
parents:
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diff
changeset
|
1286 to be indexed. When possible the internal result is cached so that\n\ |
|
0d9640d755b1
Improve docstrings for all isXXX functions.
Rik <octave@nomad.inbox5.com>
parents:
11066
diff
changeset
|
1287 subsequent indexing using @var{ind} will not perform the check again.\n\ |
|
9487
2894af292e69
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diff
changeset
|
1288 @end deftypefn") |
|
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diff
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|
1289 { |
|
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diff
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|
1290 octave_value retval; |
|
2894af292e69
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diff
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|
1291 int nargin = args.length (); |
|
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diff
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|
1292 octave_idx_type n = 0; |
|
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diff
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|
1293 |
|
2894af292e69
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diff
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|
1294 if (nargin == 2) |
|
2894af292e69
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|
1295 n = args(1).idx_type_value (); |
|
2894af292e69
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diff
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|
1296 else if (nargin != 1) |
|
2894af292e69
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parents:
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diff
changeset
|
1297 print_usage (); |
|
2894af292e69
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diff
changeset
|
1298 |
|
2894af292e69
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diff
changeset
|
1299 if (! error_state) |
|
2894af292e69
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parents:
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diff
changeset
|
1300 { |
|
10066
2cd940306a06
make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents:
10033
diff
changeset
|
1301 unwind_protect frame; |
|
10605
1834132fb50b
allow non-integer ranges as indices conditionally
John W. Eaton <jwe@octave.org>
parents:
10502
diff
changeset
|
1302 |
|
10613
e103fb2182ce
use internal variable instead of warning state to control whether to allow non-integer ranges as indices
John W. Eaton <jwe@octave.org>
parents:
10605
diff
changeset
|
1303 frame.protect_var (Vallow_noninteger_range_as_index); |
|
e103fb2182ce
use internal variable instead of warning state to control whether to allow non-integer ranges as indices
John W. Eaton <jwe@octave.org>
parents:
10605
diff
changeset
|
1304 Vallow_noninteger_range_as_index = false; |
|
10605
1834132fb50b
allow non-integer ranges as indices conditionally
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parents:
10502
diff
changeset
|
1305 |
|
10066
2cd940306a06
make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents:
10033
diff
changeset
|
1306 frame.protect_var (error_state); |
|
10605
1834132fb50b
allow non-integer ranges as indices conditionally
John W. Eaton <jwe@octave.org>
parents:
10502
diff
changeset
|
1307 |
|
10066
2cd940306a06
make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents:
10033
diff
changeset
|
1308 frame.protect_var (discard_error_messages); |
|
9487
2894af292e69
implement isindex function
Jaroslav Hajek <highegg@gmail.com>
parents:
9173
diff
changeset
|
1309 discard_error_messages = true; |
|
2894af292e69
implement isindex function
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parents:
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diff
changeset
|
1310 |
|
2894af292e69
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Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
1311 try |
|
2894af292e69
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Jaroslav Hajek <highegg@gmail.com>
parents:
9173
diff
changeset
|
1312 { |
|
2894af292e69
implement isindex function
Jaroslav Hajek <highegg@gmail.com>
parents:
9173
diff
changeset
|
1313 idx_vector idx = args(0).index_vector (); |
|
2894af292e69
implement isindex function
Jaroslav Hajek <highegg@gmail.com>
parents:
9173
diff
changeset
|
1314 if (! error_state) |
|
2894af292e69
implement isindex function
Jaroslav Hajek <highegg@gmail.com>
parents:
9173
diff
changeset
|
1315 { |
|
2894af292e69
implement isindex function
Jaroslav Hajek <highegg@gmail.com>
parents:
9173
diff
changeset
|
1316 if (nargin == 2) |
|
2894af292e69
implement isindex function
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1317 retval = idx.extent (n) <= n; |
|
2894af292e69
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Jaroslav Hajek <highegg@gmail.com>
parents:
9173
diff
changeset
|
1318 else |
|
2894af292e69
implement isindex function
Jaroslav Hajek <highegg@gmail.com>
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9173
diff
changeset
|
1319 retval = true; |
|
2894af292e69
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Jaroslav Hajek <highegg@gmail.com>
parents:
9173
diff
changeset
|
1320 } |
|
2894af292e69
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Jaroslav Hajek <highegg@gmail.com>
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9173
diff
changeset
|
1321 else |
|
2894af292e69
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parents:
9173
diff
changeset
|
1322 retval = false; |
|
2894af292e69
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Jaroslav Hajek <highegg@gmail.com>
parents:
9173
diff
changeset
|
1323 } |
|
2894af292e69
implement isindex function
Jaroslav Hajek <highegg@gmail.com>
parents:
9173
diff
changeset
|
1324 catch (octave_execution_exception) |
|
2894af292e69
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parents:
9173
diff
changeset
|
1325 { |
|
2894af292e69
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9173
diff
changeset
|
1326 retval = false; |
|
2894af292e69
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parents:
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diff
changeset
|
1327 } |
|
2894af292e69
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Jaroslav Hajek <highegg@gmail.com>
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9173
diff
changeset
|
1328 } |
|
2894af292e69
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diff
changeset
|
1329 |
|
2894af292e69
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diff
changeset
|
1330 return retval; |
|
2894af292e69
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diff
changeset
|
1331 } |
|
2894af292e69
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diff
changeset
|
1332 |
| 13094 | 1333 /* |
| 1334 %!error isindex (); | |
| 1335 | |
| 1336 %!assert (isindex ([1, 2, 3])); | |
| 1337 %!assert (isindex (1:3)); | |
| 1338 %!assert (isindex ([1, 2, -3]), false); | |
| 1339 */ | |
| 1340 | |
|
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parents:
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|
1341 octave_value_list |
|
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parents:
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diff
changeset
|
1342 do_simple_cellfun (octave_value_list (*fun) (const octave_value_list&, int), |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11575
diff
changeset
|
1343 const char *fun_name, const octave_value_list& args, |
|
10086
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diff
changeset
|
1344 int nargout) |
|
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diff
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|
1345 { |
|
76df75b10c80
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parents:
10070
diff
changeset
|
1346 octave_value_list new_args = args, retval; |
|
76df75b10c80
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parents:
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diff
changeset
|
1347 int nargin = args.length (); |
|
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diff
changeset
|
1348 OCTAVE_LOCAL_BUFFER (bool, iscell, nargin); |
|
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diff
changeset
|
1349 OCTAVE_LOCAL_BUFFER (Cell, cells, nargin); |
|
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diff
changeset
|
1350 OCTAVE_LOCAL_BUFFER (Cell, rcells, nargout); |
|
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|
1351 |
|
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parents:
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diff
changeset
|
1352 const Cell *ccells = cells; |
|
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|
1353 |
|
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changeset
|
1354 octave_idx_type numel = 1; |
|
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diff
changeset
|
1355 dim_vector dims (1, 1); |
|
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changeset
|
1356 |
|
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|
1357 for (int i = 0; i < nargin; i++) |
|
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|
1358 { |
|
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changeset
|
1359 octave_value arg = new_args(i); |
|
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|
1360 iscell[i] = arg.is_cell (); |
|
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|
1361 if (iscell[i]) |
|
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|
1362 { |
|
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diff
changeset
|
1363 cells[i] = arg.cell_value (); |
|
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changeset
|
1364 octave_idx_type n = ccells[i].numel (); |
|
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changeset
|
1365 if (n == 1) |
|
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changeset
|
1366 { |
|
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changeset
|
1367 iscell[i] = false; |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1368 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:
10070
diff
changeset
|
1369 } |
|
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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
|
1370 else if (numel == 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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|
1371 { |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1372 numel = n; |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1373 dims = ccells[i].dims (); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11575
diff
changeset
|
1374 } |
|
10086
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1375 else if (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
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|
1376 { |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
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|
1377 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:
10070
diff
changeset
|
1378 break; |
|
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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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|
1379 } |
|
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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|
1380 } |
|
76df75b10c80
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
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|
1381 } |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1382 |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1383 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
|
1384 { |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1385 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
|
1386 rcells[i].clear (dims); |
|
76df75b10c80
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Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1387 |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1388 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
|
1389 { |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1390 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
|
1391 if (iscell[i]) |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1392 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
|
1393 |
|
10142
829e69ec3110
make OCTAVE_QUIT a function
Jaroslav Hajek <highegg@gmail.com>
parents:
10086
diff
changeset
|
1394 octave_quit (); |
|
10086
76df75b10c80
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Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1395 |
|
76df75b10c80
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Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1396 const octave_value_list tmp = fun (new_args, nargout); |
|
76df75b10c80
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Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1397 |
|
76df75b10c80
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Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1398 if (tmp.length () < nargout) |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1399 { |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1400 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:
10070
diff
changeset
|
1401 break; |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1402 } |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
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parents:
10070
diff
changeset
|
1403 else |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1404 { |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1405 for (int i = 0; i < nargout; i++) |
|
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Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1406 rcells[i](j) = tmp(i); |
|
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1407 } |
|
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parents:
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diff
changeset
|
1408 } |
|
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parents:
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diff
changeset
|
1409 } |
|
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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
|
1410 |
|
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Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1411 if (! error_state) |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1412 { |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1413 retval.resize (nargout); |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1414 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
|
1415 retval(i) = rcells[i]; |
|
76df75b10c80
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parents:
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diff
changeset
|
1416 } |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
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parents:
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diff
changeset
|
1417 |
|
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parents:
10070
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changeset
|
1418 return retval; |
|
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1419 } |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1420 |
|
76df75b10c80
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parents:
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changeset
|
1421 octave_value |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1422 do_simple_cellfun (octave_value_list (*fun) (const octave_value_list&, int), |
|
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parents:
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|
1423 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
|
1424 { |
|
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
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|
1425 octave_value retval; |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
1426 const octave_value_list tmp = do_simple_cellfun (fun, fun_name, args, 1); |
|
76df75b10c80
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parents:
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diff
changeset
|
1427 if (tmp.length () > 0) |
|
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1428 retval = tmp(0); |
|
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
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1430 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
|
1431 } |