Mercurial > hg > octave-nkf
annotate src/utils.cc @ 10828:322f43e0e170
Grammarcheck .txi documentation files.
| author | Rik <octave@nomad.inbox5.com> |
|---|---|
| date | Wed, 28 Jul 2010 12:45:04 -0700 |
| parents | 6c50b56824aa |
| children | 89f4d7e294cc |
| 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" | |
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57 #include "lex.h" |
| 5832 | 58 #include "load-path.h" |
| 5465 | 59 #include "oct-errno.h" |
| 1742 | 60 #include "oct-hist.h" |
| 1750 | 61 #include "oct-obj.h" |
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62 #include "ov-range.h" |
| 1352 | 63 #include "pager.h" |
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64 #include "parse.h" |
| 1690 | 65 #include "sysdep.h" |
| 1750 | 66 #include "toplev.h" |
| 1 | 67 #include "unwind-prot.h" |
| 1352 | 68 #include "utils.h" |
| 69 #include "variables.h" | |
| 1 | 70 |
| 4143 | 71 // Return TRUE if S is a valid identifier. |
| 72 | |
| 73 bool | |
| 74 valid_identifier (const char *s) | |
| 75 { | |
| 5290 | 76 if (! s || ! (isalpha (*s) || *s == '_' || *s == '$')) |
| 4143 | 77 return false; |
| 78 | |
| 79 while (*++s != '\0') | |
| 5290 | 80 if (! (isalnum (*s) || *s == '_' || *s == '$')) |
| 4143 | 81 return false; |
| 82 | |
| 83 return true; | |
| 84 } | |
| 85 | |
| 86 bool | |
| 87 valid_identifier (const std::string& s) | |
| 88 { | |
| 89 return valid_identifier (s.c_str ()); | |
| 90 } | |
| 91 | |
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92 DEFUN (isvarname, args, , |
| 5040 | 93 "-*- texinfo -*-\n\ |
| 94 @deftypefn {Built-in Function} {} isvarname (@var{name})\n\ | |
| 4264 | 95 Return true if @var{name} is a valid variable name\n\ |
| 96 @end deftypefn") | |
| 97 { | |
| 98 octave_value retval; | |
| 99 | |
| 100 int argc = args.length () + 1; | |
| 101 | |
| 4610 | 102 string_vector argv = args.make_argv ("isvarname"); |
| 4264 | 103 |
| 104 if (error_state) | |
| 105 return retval; | |
| 106 | |
| 107 if (argc == 2) | |
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108 retval = valid_identifier (argv[1]) && ! is_keyword (argv[1]); |
| 4264 | 109 else |
| 5823 | 110 print_usage (); |
| 4264 | 111 |
| 112 return retval; | |
| 113 } | |
| 114 | |
| 6323 | 115 // Return TRUE if F and G are both names for the same file. |
| 116 | |
| 117 bool | |
| 118 same_file (const std::string& f, const std::string& g) | |
| 119 { | |
| 6598 | 120 return same_file_internal (f, g); |
| 6323 | 121 } |
| 122 | |
| 1 | 123 int |
| 3523 | 124 almost_match (const std::string& std, const std::string& s, int min_match_len, |
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125 int case_sens) |
| 1 | 126 { |
| 1755 | 127 int stdlen = std.length (); |
| 128 int slen = s.length (); | |
| 1 | 129 |
| 130 return (slen <= stdlen | |
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131 && slen >= min_match_len |
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132 && (case_sens |
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133 ? (strncmp (std.c_str (), s.c_str (), slen) == 0) |
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134 : (octave_strncasecmp (std.c_str (), s.c_str (), slen) == 0))); |
| 287 | 135 } |
| 136 | |
| 581 | 137 // Ugh. |
| 138 | |
| 287 | 139 int |
| 3523 | 140 keyword_almost_match (const char * const *std, int *min_len, const std::string& s, |
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141 int min_toks_to_match, int max_toks) |
| 287 | 142 { |
| 143 int status = 0; | |
| 144 int tok_count = 0; | |
| 145 int toks_matched = 0; | |
| 146 | |
| 1755 | 147 if (s.empty () || max_toks < 1) |
| 287 | 148 return status; |
| 149 | |
| 1755 | 150 char *kw = strsave (s.c_str ()); |
| 287 | 151 |
| 152 char *t = kw; | |
| 153 while (*t != '\0') | |
| 154 { | |
| 155 if (*t == '\t') | |
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156 *t = ' '; |
| 287 | 157 t++; |
| 158 } | |
| 159 | |
| 160 char *beg = kw; | |
| 161 while (*beg == ' ') | |
| 162 beg++; | |
| 163 | |
| 164 if (*beg == '\0') | |
| 165 return status; | |
| 166 | |
| 167 | |
| 3072 | 168 const char **to_match = new const char * [max_toks + 1]; |
| 169 const char * const *s1 = std; | |
| 170 const char **s2 = to_match; | |
| 287 | 171 |
| 526 | 172 if (! s1 || ! s2) |
| 287 | 173 goto done; |
| 174 | |
| 175 s2[tok_count] = beg; | |
| 176 char *end; | |
| 526 | 177 while ((end = strchr (beg, ' ')) != 0) |
| 287 | 178 { |
| 179 *end = '\0'; | |
| 180 beg = end + 1; | |
| 181 | |
| 182 while (*beg == ' ') | |
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183 beg++; |
| 287 | 184 |
| 185 if (*beg == '\0') | |
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186 break; |
| 287 | 187 |
| 188 tok_count++; | |
| 189 if (tok_count >= max_toks) | |
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190 goto done; |
| 287 | 191 |
| 192 s2[tok_count] = beg; | |
| 193 } | |
| 526 | 194 s2[tok_count+1] = 0; |
| 287 | 195 |
| 196 s2 = to_match; | |
| 197 | |
| 198 for (;;) | |
| 199 { | |
| 200 if (! almost_match (*s1, *s2, min_len[toks_matched], 0)) | |
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201 goto done; |
| 287 | 202 |
| 203 toks_matched++; | |
| 204 | |
| 205 s1++; | |
| 206 s2++; | |
| 207 | |
| 208 if (! *s2) | |
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209 { |
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210 status = (toks_matched >= min_toks_to_match); |
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211 goto done; |
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212 } |
| 287 | 213 |
| 214 if (! *s1) | |
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215 goto done; |
| 287 | 216 } |
| 217 | |
| 218 done: | |
| 219 | |
| 220 delete [] kw; | |
| 221 delete [] to_match; | |
| 222 | |
| 223 return status; | |
| 1 | 224 } |
| 225 | |
| 2234 | 226 // Return non-zero if either NR or NC is zero. Return -1 if this |
| 227 // should be considered fatal; return 1 if this is ok. | |
| 228 | |
| 229 int | |
| 5275 | 230 empty_arg (const char * /* name */, octave_idx_type nr, octave_idx_type nc) |
| 2234 | 231 { |
| 4478 | 232 return (nr == 0 || nc == 0); |
| 2234 | 233 } |
| 234 | |
| 581 | 235 // See if the given file is in the path. |
| 236 | |
| 3536 | 237 std::string |
| 4243 | 238 search_path_for_file (const std::string& path, const string_vector& names) |
| 686 | 239 { |
| 3174 | 240 dir_path p (path); |
| 686 | 241 |
| 10250 | 242 return octave_env::make_absolute (p.find_first_of (names)); |
| 686 | 243 } |
| 244 | |
| 4216 | 245 // Find all locations of the given file in the path. |
| 246 | |
| 247 string_vector | |
| 4243 | 248 search_path_for_all_files (const std::string& path, const string_vector& names) |
| 4216 | 249 { |
| 250 dir_path p (path); | |
| 251 | |
| 4243 | 252 string_vector sv = p.find_all_first_of (names); |
| 4216 | 253 |
| 6379 | 254 octave_idx_type len = sv.length (); |
| 4216 | 255 |
| 6379 | 256 for (octave_idx_type i = 0; i < len; i++) |
| 10250 | 257 sv[i] = octave_env::make_absolute (sv[i]); |
| 4216 | 258 |
| 259 return sv; | |
| 260 } | |
| 261 | |
| 262 static string_vector | |
| 263 make_absolute (const string_vector& sv) | |
| 264 { | |
| 6379 | 265 octave_idx_type len = sv.length (); |
| 266 | |
| 267 string_vector retval (len); | |
| 4216 | 268 |
| 6379 | 269 for (octave_idx_type i = 0; i < len; i++) |
| 10250 | 270 retval[i] = octave_env::make_absolute (sv[i]); |
| 6379 | 271 |
| 272 return retval; | |
| 4216 | 273 } |
| 274 | |
| 3195 | 275 DEFUN (file_in_loadpath, args, , |
| 3446 | 276 "-*- texinfo -*-\n\ |
| 4216 | 277 @deftypefn {Built-in Function} {} file_in_loadpath (@var{file})\n\ |
| 278 @deftypefnx {Built-in Function} {} file_in_loadpath (@var{file}, \"all\")\n\ | |
| 3195 | 279 \n\ |
| 5448 | 280 Return the absolute name of @var{file} if it can be found in\n\ |
| 5814 | 281 the list of directories specified by @code{path}.\n\ |
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282 If no file is found, return an empty character string.\n\ |
| 4216 | 283 \n\ |
| 5448 | 284 If the first argument is a cell array of strings, search each\n\ |
| 4243 | 285 directory of the loadpath for element of the cell array and return\n\ |
| 286 the first that matches.\n\ | |
| 287 \n\ | |
| 4216 | 288 If the second optional argument @code{\"all\"} is supplied, return\n\ |
| 289 a cell array containing the list of all files that have the same\n\ | |
| 290 name in the path. If no files are found, return an empty cell array.\n\ | |
| 5814 | 291 @seealso{file_in_path, path}\n\ |
| 5642 | 292 @end deftypefn") |
| 3195 | 293 { |
| 4216 | 294 octave_value retval; |
| 3195 | 295 |
| 4243 | 296 int nargin = args.length (); |
| 3195 | 297 |
| 4243 | 298 if (nargin == 1 || nargin == 2) |
| 4216 | 299 { |
| 4243 | 300 string_vector names = args(0).all_strings (); |
| 301 | |
| 302 if (! error_state && names.length () > 0) | |
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303 { |
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304 if (nargin == 1) |
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305 retval = octave_env::make_absolute (load_path::find_first_of (names)); |
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306 else if (nargin == 2) |
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307 { |
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308 std::string opt = args(1).string_value (); |
| 4243 | 309 |
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310 if (! error_state && opt == "all") |
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311 retval = Cell (make_absolute |
| 10250 | 312 (load_path::find_all_first_of (names))); |
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313 else |
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314 error ("file_in_loadpath: invalid option"); |
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315 } |
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316 } |
| 4216 | 317 else |
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318 error ("file_in_loadpath: expecting string as first argument"); |
| 4216 | 319 } |
| 3195 | 320 else |
| 5823 | 321 print_usage (); |
| 3195 | 322 |
| 323 return retval; | |
| 324 } | |
| 325 | |
| 1957 | 326 DEFUN (file_in_path, args, , |
| 3301 | 327 "-*- texinfo -*-\n\ |
| 328 @deftypefn {Built-in Function} {} file_in_path (@var{path}, @var{file})\n\ | |
| 4216 | 329 @deftypefnx {Built-in Function} {} file_in_path (@var{path}, @var{file}, \"all\")\n\ |
| 5448 | 330 Return the absolute name of @var{file} if it can be found in\n\ |
| 3301 | 331 @var{path}. The value of @var{path} should be a colon-separated list of\n\ |
| 5814 | 332 directories in the format described for @code{path}. If no file\n\ |
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333 is found, return an empty character string. For example,\n\ |
| 3301 | 334 \n\ |
| 335 @example\n\ | |
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336 @group\n\ |
| 5456 | 337 file_in_path (EXEC_PATH, \"sh\")\n\ |
| 338 @result{} \"/bin/sh\"\n\ | |
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339 @end group\n\ |
| 3301 | 340 @end example\n\ |
| 4216 | 341 \n\ |
| 5448 | 342 If the second argument is a cell array of strings, search each\n\ |
| 4243 | 343 directory of the path for element of the cell array and return\n\ |
| 344 the first that matches.\n\ | |
| 345 \n\ | |
| 4216 | 346 If the third optional argument @code{\"all\"} is supplied, return\n\ |
| 347 a cell array containing the list of all files that have the same\n\ | |
| 348 name in the path. If no files are found, return an empty cell array.\n\ | |
| 4249 | 349 @seealso{file_in_loadpath}\n\ |
| 3301 | 350 @end deftypefn") |
| 686 | 351 { |
| 4216 | 352 octave_value retval; |
| 686 | 353 |
| 4243 | 354 int nargin = args.length (); |
| 1755 | 355 |
| 4243 | 356 if (nargin == 2 || nargin == 3) |
| 686 | 357 { |
| 4243 | 358 std::string path = args(0).string_value (); |
| 359 | |
| 360 if (! error_state) | |
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361 { |
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362 string_vector names = args(1).all_strings (); |
| 4243 | 363 |
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364 if (! error_state && names.length () > 0) |
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365 { |
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366 if (nargin == 2) |
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367 retval = search_path_for_file (path, names); |
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368 else if (nargin == 3) |
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369 { |
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370 std::string opt = args(2).string_value (); |
| 4243 | 371 |
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372 if (! error_state && opt == "all") |
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373 retval = Cell (make_absolute |
| 10250 | 374 (search_path_for_all_files (path, names))); |
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375 else |
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376 error ("file_in_path: invalid option"); |
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377 } |
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378 } |
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379 else |
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380 error ("file_in_path: expecting string as second argument"); |
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381 } |
| 1755 | 382 else |
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383 error ("file_in_path: expecting string as first argument"); |
| 686 | 384 } |
| 385 else | |
| 5823 | 386 print_usage (); |
| 686 | 387 |
| 388 return retval; | |
| 389 } | |
| 390 | |
| 3536 | 391 std::string |
| 3523 | 392 file_in_path (const std::string& name, const std::string& suffix) |
| 526 | 393 { |
| 3523 | 394 std::string nm = name; |
| 526 | 395 |
| 1755 | 396 if (! suffix.empty ()) |
| 397 nm.append (suffix); | |
| 686 | 398 |
| 10250 | 399 return octave_env::make_absolute (load_path::find_file (nm)); |
| 526 | 400 } |
| 401 | |
| 581 | 402 // See if there is an function file in the path. If so, return the |
| 403 // full path to the file. | |
| 404 | |
| 3536 | 405 std::string |
| 3523 | 406 fcn_file_in_path (const std::string& name) |
| 526 | 407 { |
| 3523 | 408 std::string retval; |
| 908 | 409 |
| 1755 | 410 int len = name.length (); |
| 411 | |
| 412 if (len > 0) | |
| 413 { | |
| 5832 | 414 if (octave_env::absolute_pathname (name)) |
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415 { |
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416 file_stat fs (name); |
| 5832 | 417 |
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418 if (fs.exists ()) |
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419 retval = name; |
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420 } |
| 5832 | 421 else if (len > 2 && name [len - 2] == '.' && name [len - 1] == 'm') |
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422 retval = load_path::find_fcn_file (name.substr (0, len-2)); |
| 908 | 423 else |
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424 { |
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425 std::string fname = name; |
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426 size_t pos = name.find_first_of (Vfilemarker); |
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427 if (pos != std::string::npos) |
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428 fname = name.substr (0, pos); |
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429 |
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430 retval = load_path::find_fcn_file (fname); |
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431 } |
| 908 | 432 } |
| 1755 | 433 |
| 434 return retval; | |
| 526 | 435 } |
| 436 | |
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437 // See if there is a directory called "name" in the path and if it |
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438 // contains a Contents.m file return the full path to this file. |
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439 |
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440 std::string |
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441 contents_file_in_path (const std::string& dir) |
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442 { |
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443 std::string retval; |
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444 |
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445 if (dir.length () > 0) |
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446 { |
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447 std::string tcontents = file_ops::concat (load_path::find_dir (dir), |
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448 std::string ("Contents.m")); |
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449 |
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450 file_stat fs (tcontents); |
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451 |
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452 if (fs.exists ()) |
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453 retval = octave_env::make_absolute (tcontents); |
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454 } |
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455 |
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456 return retval; |
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457 } |
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458 |
| 5864 | 459 // See if there is a .oct file in the path. If so, return the |
| 581 | 460 // full path to the file. |
| 461 | |
| 3536 | 462 std::string |
| 3523 | 463 oct_file_in_path (const std::string& name) |
| 572 | 464 { |
| 3523 | 465 std::string retval; |
| 908 | 466 |
| 1755 | 467 int len = name.length (); |
| 468 | |
| 469 if (len > 0) | |
| 470 { | |
| 5832 | 471 if (octave_env::absolute_pathname (name)) |
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472 { |
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473 file_stat fs (name); |
| 5832 | 474 |
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475 if (fs.exists ()) |
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476 retval = name; |
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477 } |
| 5832 | 478 else if (len > 4 && name [len - 4] == '.' && name [len - 3] == 'o' |
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479 && name [len - 2] == 'c' && name [len - 1] == 't') |
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480 retval = load_path::find_oct_file (name.substr (0, len-4)); |
| 908 | 481 else |
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482 retval = load_path::find_oct_file (name); |
| 908 | 483 } |
| 1755 | 484 |
| 485 return retval; | |
| 572 | 486 } |
| 487 | |
| 5864 | 488 // See if there is a .mex file in the path. If so, return the |
| 489 // full path to the file. | |
| 490 | |
| 491 std::string | |
| 492 mex_file_in_path (const std::string& name) | |
| 493 { | |
| 494 std::string retval; | |
| 495 | |
| 496 int len = name.length (); | |
| 497 | |
| 498 if (len > 0) | |
| 499 { | |
| 500 if (octave_env::absolute_pathname (name)) | |
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501 { |
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502 file_stat fs (name); |
| 5864 | 503 |
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504 if (fs.exists ()) |
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505 retval = name; |
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506 } |
| 5864 | 507 else if (len > 4 && name [len - 4] == '.' && name [len - 3] == 'm' |
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508 && name [len - 2] == 'e' && name [len - 1] == 'x') |
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509 retval = load_path::find_mex_file (name.substr (0, len-4)); |
| 5864 | 510 else |
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511 retval = load_path::find_mex_file (name); |
| 5864 | 512 } |
| 513 | |
| 514 return retval; | |
| 515 } | |
| 516 | |
| 3103 | 517 // Replace backslash escapes in a string with the real values. |
| 518 | |
| 3536 | 519 std::string |
| 3523 | 520 do_string_escapes (const std::string& s) |
| 3103 | 521 { |
| 3523 | 522 std::string retval; |
| 3103 | 523 |
| 524 size_t i = 0; | |
| 525 size_t j = 0; | |
| 526 size_t len = s.length (); | |
| 527 | |
| 528 retval.resize (len); | |
| 529 | |
| 530 while (j < len) | |
| 531 { | |
| 532 if (s[j] == '\\' && j+1 < len) | |
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533 { |
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534 switch (s[++j]) |
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535 { |
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536 case '0': |
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537 retval[i] = '\0'; |
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538 break; |
| 3893 | 539 |
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540 case 'a': |
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541 retval[i] = '\a'; |
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542 break; |
| 3103 | 543 |
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544 case 'b': // backspace |
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545 retval[i] = '\b'; |
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546 break; |
| 3103 | 547 |
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548 case 'f': // formfeed |
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549 retval[i] = '\f'; |
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550 break; |
| 3103 | 551 |
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552 case 'n': // newline |
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553 retval[i] = '\n'; |
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554 break; |
| 3103 | 555 |
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556 case 'r': // carriage return |
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557 retval[i] = '\r'; |
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558 break; |
| 3103 | 559 |
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560 case 't': // horizontal tab |
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561 retval[i] = '\t'; |
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562 break; |
| 3103 | 563 |
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564 case 'v': // vertical tab |
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565 retval[i] = '\v'; |
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566 break; |
| 3103 | 567 |
|
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568 case '\\': // backslash |
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569 retval[i] = '\\'; |
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570 break; |
| 3103 | 571 |
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572 case '\'': // quote |
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573 retval[i] = '\''; |
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574 break; |
| 3103 | 575 |
|
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576 case '"': // double quote |
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577 retval[i] = '"'; |
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578 break; |
| 3103 | 579 |
|
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580 default: |
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581 warning ("unrecognized escape sequence `\\%c' --\ |
| 3103 | 582 converting to `%c'", s[j], s[j]); |
|
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583 retval[i] = s[j]; |
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584 break; |
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585 } |
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586 } |
| 3103 | 587 else |
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588 { |
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589 retval[i] = s[j]; |
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590 } |
| 3103 | 591 |
| 592 i++; | |
| 593 j++; | |
| 594 } | |
| 595 | |
| 3105 | 596 retval.resize (i); |
| 3103 | 597 |
| 598 return retval; | |
| 599 } | |
| 600 | |
| 601 DEFUN (do_string_escapes, args, , | |
| 3446 | 602 "-*- texinfo -*-\n\ |
| 603 @deftypefn {Built-in Function} {} do_string_escapes (@var{string})\n\ | |
| 604 Convert special characters in @var{string} to their escaped forms.\n\ | |
| 605 @end deftypefn") | |
| 3103 | 606 { |
| 607 octave_value retval; | |
| 608 | |
| 609 int nargin = args.length (); | |
| 610 | |
| 611 if (nargin == 1) | |
| 612 { | |
| 613 if (args(0).is_string ()) | |
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614 retval = do_string_escapes (args(0).string_value ()); |
| 3103 | 615 else |
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616 error ("do_string_escapes: argument must be a string"); |
| 3103 | 617 } |
| 618 else | |
| 5823 | 619 print_usage (); |
| 3103 | 620 |
| 621 return retval; | |
| 622 } | |
| 623 | |
| 1755 | 624 const char * |
| 801 | 625 undo_string_escape (char c) |
| 626 { | |
| 627 if (! c) | |
| 1755 | 628 return ""; |
| 801 | 629 |
| 630 switch (c) | |
| 631 { | |
| 3893 | 632 case '\0': |
| 633 return "\\0"; | |
| 634 | |
| 801 | 635 case '\a': |
| 636 return "\\a"; | |
| 637 | |
| 638 case '\b': // backspace | |
| 639 return "\\b"; | |
| 640 | |
| 641 case '\f': // formfeed | |
| 642 return "\\f"; | |
| 643 | |
| 644 case '\n': // newline | |
| 645 return "\\n"; | |
| 646 | |
| 647 case '\r': // carriage return | |
| 648 return "\\r"; | |
| 649 | |
| 650 case '\t': // horizontal tab | |
| 651 return "\\t"; | |
| 652 | |
| 653 case '\v': // vertical tab | |
| 654 return "\\v"; | |
| 655 | |
| 656 case '\\': // backslash | |
| 657 return "\\\\"; | |
| 658 | |
| 659 case '"': // double quote | |
| 660 return "\\\""; | |
| 661 | |
| 662 default: | |
| 1755 | 663 { |
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664 static char retval[2]; |
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665 retval[0] = c; |
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666 retval[1] = '\0'; |
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667 return retval; |
| 1755 | 668 } |
| 801 | 669 } |
| 670 } | |
| 671 | |
| 3536 | 672 std::string |
| 3523 | 673 undo_string_escapes (const std::string& s) |
| 801 | 674 { |
| 3523 | 675 std::string retval; |
| 801 | 676 |
| 1755 | 677 for (size_t i = 0; i < s.length (); i++) |
| 678 retval.append (undo_string_escape (s[i])); | |
| 801 | 679 |
| 1755 | 680 return retval; |
| 801 | 681 } |
| 682 | |
| 1957 | 683 DEFUN (undo_string_escapes, args, , |
| 3361 | 684 "-*- texinfo -*-\n\ |
| 685 @deftypefn {Built-in Function} {} undo_string_escapes (@var{s})\n\ | |
| 686 Converts special characters in strings back to their escaped forms. For\n\ | |
| 687 example, the expression\n\ | |
| 688 \n\ | |
| 689 @example\n\ | |
| 690 bell = \"\\a\";\n\ | |
| 691 @end example\n\ | |
| 692 \n\ | |
| 693 @noindent\n\ | |
| 694 assigns the value of the alert character (control-g, ASCII code 7) to\n\ | |
| 695 the string variable @code{bell}. If this string is printed, the\n\ | |
| 696 system will ring the terminal bell (if it is possible). This is\n\ | |
| 697 normally the desired outcome. However, sometimes it is useful to be\n\ | |
| 698 able to print the original representation of the string, with the\n\ | |
| 699 special characters replaced by their escape sequences. For example,\n\ | |
| 700 \n\ | |
| 701 @example\n\ | |
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702 @group\n\ |
| 3361 | 703 octave:13> undo_string_escapes (bell)\n\ |
| 704 ans = \\a\n\ | |
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705 @end group\n\ |
| 3361 | 706 @end example\n\ |
| 707 \n\ | |
| 708 @noindent\n\ | |
| 709 replaces the unprintable alert character with its printable\n\ | |
| 710 representation.\n\ | |
| 711 @end deftypefn") | |
| 801 | 712 { |
| 2086 | 713 octave_value retval; |
| 801 | 714 |
| 715 int nargin = args.length (); | |
| 716 | |
| 3103 | 717 if (nargin == 1) |
| 718 { | |
| 719 if (args(0).is_string ()) | |
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720 retval = undo_string_escapes (args(0).string_value ()); |
| 3103 | 721 else |
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722 error ("undo_string_escapes: argument must be a string"); |
| 3103 | 723 } |
| 801 | 724 else |
| 5823 | 725 print_usage (); |
| 801 | 726 |
| 727 return retval; | |
| 728 } | |
| 729 | |
| 8229 | 730 DEFUN (is_absolute_filename, args, , |
| 731 "-*- texinfo -*-\n\ | |
| 732 @deftypefn {Built-in Function} {} is_absolute_filename (@var{file})\n\ | |
| 733 Return true if @var{file} is an absolute filename.\n\ | |
| 734 @end deftypefn") | |
| 735 { | |
| 736 octave_value retval = false; | |
| 737 | |
| 738 if (args.length () == 1) | |
| 739 retval = (args(0).is_string () | |
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740 && octave_env::absolute_pathname (args(0).string_value ())); |
| 8229 | 741 else |
| 742 print_usage (); | |
| 743 | |
| 744 return retval; | |
| 745 } | |
| 746 | |
| 747 DEFUN (is_rooted_relative_filename, args, , | |
| 748 "-*- texinfo -*-\n\ | |
| 749 @deftypefn {Built-in Function} {} is_rooted_relative_filename (@var{file})\n\ | |
| 750 Return true if @var{file} is a rooted-relative filename.\n\ | |
| 751 @end deftypefn") | |
| 752 { | |
| 753 octave_value retval = false; | |
| 754 | |
| 755 if (args.length () == 1) | |
| 756 retval = (args(0).is_string () | |
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757 && octave_env::rooted_relative_pathname (args(0).string_value ())); |
| 8229 | 758 else |
| 759 print_usage (); | |
| 760 | |
| 761 return retval; | |
| 762 } | |
| 763 | |
| 764 DEFUN (make_absolute_filename, args, , | |
| 765 "-*- texinfo -*-\n\ | |
| 766 @deftypefn {Built-in Function} {} make_absolute_filename (@var{file})\n\ | |
| 767 Return the full name of @var{file}, relative to the current directory.\n\ | |
| 768 @end deftypefn") | |
| 769 { | |
| 770 octave_value retval = std::string (); | |
| 771 | |
| 772 if (args.length () == 1) | |
| 773 { | |
| 774 std::string nm = args(0).string_value (); | |
| 775 | |
| 776 if (! error_state) | |
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777 retval = octave_env::make_absolute (nm); |
| 8229 | 778 else |
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779 error ("make_absolute_filename: expecting argument to be a file name"); |
| 8229 | 780 } |
| 781 else | |
| 782 print_usage (); | |
| 783 | |
| 784 return retval; | |
| 785 } | |
| 786 | |
| 787 DEFUN (find_dir_in_path, args, , | |
| 788 "-*- texinfo -*-\n\ | |
|
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789 @deftypefn {Built-in Function} {} find_dir_in_path (@var{dir}, \"all\")\n\ |
| 8229 | 790 Return the full name of the path element matching @var{dir}. The\n\ |
| 791 match is performed at the end of each path element. For example, if\n\ | |
| 792 @var{dir} is @code{\"foo/bar\"}, it matches the path element\n\ | |
| 793 @code{\"/some/dir/foo/bar\"}, but not @code{\"/some/dir/foo/bar/baz\"}\n\ | |
| 8715 | 794 or @code{\"/some/dir/allfoo/bar\"}.\n\ |
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795 \n\ |
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796 The second argument is optional. If it is supplied, return a cell array\n\ |
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797 containing all the directory names that match.\n\ |
| 8229 | 798 @end deftypefn") |
| 799 { | |
| 800 octave_value retval = std::string (); | |
| 801 | |
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802 int nargin = args.length (); |
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803 |
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804 std::string dir; |
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805 |
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806 if (nargin == 1 || nargin == 2) |
| 8229 | 807 { |
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808 dir = args(0).string_value (); |
| 8229 | 809 |
| 810 if (! error_state) | |
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811 { |
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812 if (nargin == 1) |
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813 retval = load_path::find_dir (dir); |
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814 else if (nargin == 2) |
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815 retval = Cell (load_path::find_matching_dirs (dir)); |
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816 } |
| 8229 | 817 else |
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818 error ("find_dir_in_path: expecting argument to be a directory name"); |
| 8229 | 819 } |
| 820 else | |
| 821 print_usage (); | |
| 822 | |
| 823 return retval; | |
| 824 } | |
| 825 | |
| 5465 | 826 DEFUNX ("errno", Ferrno, args, , |
| 3716 | 827 "-*- texinfo -*-\n\ |
| 5465 | 828 @deftypefn {Built-in Function} {@var{err} =} errno ()\n\ |
| 829 @deftypefnx {Built-in Function} {@var{err} =} errno (@var{val})\n\ | |
| 830 @deftypefnx {Built-in Function} {@var{err} =} errno (@var{name})\n\ | |
| 831 Return the current value of the system-dependent variable errno,\n\ | |
| 832 set its value to @var{val} and return the previous value, or return\n\ | |
| 833 the named error code given @var{name} as a character string, or -1\n\ | |
| 834 if @var{name} is not found.\n\ | |
| 3716 | 835 @end deftypefn") |
| 836 { | |
| 837 octave_value retval; | |
| 838 | |
| 5465 | 839 int nargin = args.length (); |
| 840 | |
| 841 if (nargin == 1) | |
| 842 { | |
| 843 if (args(0).is_string ()) | |
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844 { |
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845 std::string nm = args(0).string_value (); |
| 5465 | 846 |
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847 if (! error_state) |
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848 retval = octave_errno::lookup (nm); |
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849 else |
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850 error ("errno: expecting character string argument"); |
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851 } |
| 5465 | 852 else |
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853 { |
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854 int val = args(0).int_value (); |
| 5465 | 855 |
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856 if (! error_state) |
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857 retval = octave_errno::set (val); |
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858 else |
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859 error ("errno: expecting integer argument"); |
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860 } |
| 5465 | 861 } |
| 862 else if (nargin == 0) | |
| 863 retval = octave_errno::get (); | |
| 3716 | 864 else |
| 5823 | 865 print_usage (); |
| 3716 | 866 |
| 867 return retval; | |
| 868 } | |
| 869 | |
| 5465 | 870 DEFUN (errno_list, args, , |
| 871 "-*- texinfo -*-\n\ | |
| 872 @deftypefn {Built-in Function} {} errno_list ()\n\ | |
| 873 Return a structure containing the system-dependent errno values.\n\ | |
| 874 @end deftypefn") | |
| 875 { | |
| 876 octave_value retval; | |
| 877 | |
| 878 if (args.length () == 0) | |
| 879 retval = octave_errno::list (); | |
| 880 else | |
| 5823 | 881 print_usage (); |
| 5465 | 882 |
| 883 return retval; | |
| 884 } | |
| 3716 | 885 |
| 2285 | 886 static void |
| 5275 | 887 check_dimensions (octave_idx_type& nr, octave_idx_type& nc, const char *warnfor) |
| 3354 | 888 { |
| 889 if (nr < 0 || nc < 0) | |
| 890 { | |
| 5781 | 891 warning_with_id ("Octave:neg-dim-as-zero", |
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892 "%s: converting negative dimension to zero", warnfor); |
| 3354 | 893 |
| 4457 | 894 nr = (nr < 0) ? 0 : nr; |
| 895 nc = (nc < 0) ? 0 : nc; | |
| 3354 | 896 } |
| 897 } | |
| 898 | |
| 899 void | |
| 4513 | 900 check_dimensions (dim_vector& dim, const char *warnfor) |
| 4481 | 901 { |
| 902 bool neg = false; | |
| 903 | |
| 904 for (int i = 0; i < dim.length (); i++) | |
| 905 { | |
| 906 if (dim(i) < 0) | |
| 907 { | |
| 908 dim(i) = 0; | |
| 909 neg = true; | |
| 910 } | |
| 911 } | |
| 912 | |
| 5781 | 913 if (neg) |
| 914 warning_with_id ("Octave:neg-dim-as-zero", | |
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915 "%s: converting negative dimension to zero", warnfor); |
| 4481 | 916 } |
| 917 | |
| 918 | |
| 919 void | |
| 920 get_dimensions (const octave_value& a, const char *warn_for, | |
| 4513 | 921 dim_vector& dim) |
| 4481 | 922 { |
| 923 if (a.is_scalar_type ()) | |
| 924 { | |
| 925 dim.resize (2); | |
| 4732 | 926 dim(0) = a.int_value (); |
| 4481 | 927 dim(1) = dim(0); |
| 928 } | |
| 929 else | |
| 930 { | |
| 5275 | 931 octave_idx_type nr = a.rows (); |
| 932 octave_idx_type nc = a.columns (); | |
| 4481 | 933 |
| 934 if (nr == 1 || nc == 1) | |
| 935 { | |
| 936 Array<double> v = a.vector_value (); | |
| 937 | |
| 938 if (error_state) | |
| 939 return; | |
| 940 | |
| 5275 | 941 octave_idx_type n = v.length (); |
| 4481 | 942 dim.resize (n); |
| 5275 | 943 for (octave_idx_type i = 0; i < n; i++) |
| 4783 | 944 dim(i) = static_cast<int> (fix (v(i))); |
| 4481 | 945 } |
| 946 else | |
| 5257 | 947 error ("%s (A): use %s (size (A)) instead", warn_for, warn_for); |
| 4481 | 948 } |
| 949 | |
| 5258 | 950 if (! error_state) |
| 951 check_dimensions (dim, warn_for); // May set error_state. | |
| 4481 | 952 } |
| 953 | |
| 954 | |
| 955 void | |
| 3354 | 956 get_dimensions (const octave_value& a, const char *warn_for, |
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957 octave_idx_type& nr, octave_idx_type& nc) |
| 3354 | 958 { |
| 959 if (a.is_scalar_type ()) | |
| 960 { | |
| 4732 | 961 nr = nc = a.int_value (); |
| 3354 | 962 } |
| 963 else | |
| 964 { | |
| 965 nr = a.rows (); | |
| 966 nc = a.columns (); | |
| 967 | |
| 968 if ((nr == 1 && nc == 2) || (nr == 2 && nc == 1)) | |
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969 { |
|
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|
970 Array<double> v = a.vector_value (); |
| 3354 | 971 |
|
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changeset
|
972 if (error_state) |
|
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diff
changeset
|
973 return; |
| 3354 | 974 |
|
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changeset
|
975 nr = static_cast<octave_idx_type> (fix (v (0))); |
|
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untabify src C++ source files
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diff
changeset
|
976 nc = static_cast<octave_idx_type> (fix (v (1))); |
|
57a59eae83cc
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diff
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|
977 } |
| 3354 | 978 else |
|
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diff
changeset
|
979 error ("%s (A): use %s (size (A)) instead", warn_for, warn_for); |
| 3354 | 980 } |
| 981 | |
| 5258 | 982 if (! error_state) |
| 983 check_dimensions (nr, nc, warn_for); // May set error_state. | |
| 3354 | 984 } |
| 985 | |
| 986 void | |
| 987 get_dimensions (const octave_value& a, const octave_value& b, | |
|
10315
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untabify src C++ source files
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|
988 const char *warn_for, octave_idx_type& nr, octave_idx_type& nc) |
| 3354 | 989 { |
| 4732 | 990 nr = a.is_empty () ? 0 : a.int_value (); |
| 991 nc = b.is_empty () ? 0 : b.int_value (); | |
| 3354 | 992 |
| 993 if (error_state) | |
| 994 error ("%s: expecting two scalar arguments", warn_for); | |
| 995 else | |
| 996 check_dimensions (nr, nc, warn_for); // May set error_state. | |
| 997 } | |
| 998 | |
|
9705
5acd99c3e794
avoid recursive overloaded calls in builtin numel
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diff
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|
999 octave_idx_type |
|
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avoid recursive overloaded calls in builtin numel
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diff
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|
1000 dims_to_numel (const dim_vector& dims, const octave_value_list& idx) |
|
5acd99c3e794
avoid recursive overloaded calls in builtin numel
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diff
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|
1001 { |
|
5acd99c3e794
avoid recursive overloaded calls in builtin numel
Jaroslav Hajek <highegg@gmail.com>
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diff
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|
1002 octave_idx_type retval; |
|
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avoid recursive overloaded calls in builtin numel
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diff
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|
1003 |
|
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avoid recursive overloaded calls in builtin numel
Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
1004 octave_idx_type len = idx.length (); |
|
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avoid recursive overloaded calls in builtin numel
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diff
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|
1005 |
|
5acd99c3e794
avoid recursive overloaded calls in builtin numel
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diff
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|
1006 if (len == 0) |
|
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avoid recursive overloaded calls in builtin numel
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9487
diff
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|
1007 retval = dims.numel (); |
|
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avoid recursive overloaded calls in builtin numel
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diff
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|
1008 else |
|
5acd99c3e794
avoid recursive overloaded calls in builtin numel
Jaroslav Hajek <highegg@gmail.com>
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9487
diff
changeset
|
1009 { |
|
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avoid recursive overloaded calls in builtin numel
Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
1010 const dim_vector dv = dims.redim (len); |
|
5acd99c3e794
avoid recursive overloaded calls in builtin numel
Jaroslav Hajek <highegg@gmail.com>
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|
1011 retval = 1; |
|
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avoid recursive overloaded calls in builtin numel
Jaroslav Hajek <highegg@gmail.com>
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9487
diff
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|
1012 for (octave_idx_type i = 0; i < len; i++) |
|
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avoid recursive overloaded calls in builtin numel
Jaroslav Hajek <highegg@gmail.com>
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|
1013 { |
|
9842
10519b4d6507
fix indexed numel for non-numeric indices
Jaroslav Hajek <highegg@gmail.com>
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9806
diff
changeset
|
1014 octave_value idxi = idx(i); |
|
10519b4d6507
fix indexed numel for non-numeric indices
Jaroslav Hajek <highegg@gmail.com>
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diff
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|
1015 if (idxi.is_magic_colon ()) |
|
9705
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avoid recursive overloaded calls in builtin numel
Jaroslav Hajek <highegg@gmail.com>
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9487
diff
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|
1016 retval *= dv(i); |
|
9842
10519b4d6507
fix indexed numel for non-numeric indices
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9806
diff
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|
1017 else if (idxi.is_numeric_type ()) |
|
10519b4d6507
fix indexed numel for non-numeric indices
Jaroslav Hajek <highegg@gmail.com>
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diff
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|
1018 retval *= idxi.numel (); |
|
9705
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avoid recursive overloaded calls in builtin numel
Jaroslav Hajek <highegg@gmail.com>
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|
1019 else |
|
9842
10519b4d6507
fix indexed numel for non-numeric indices
Jaroslav Hajek <highegg@gmail.com>
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9806
diff
changeset
|
1020 { |
|
10519b4d6507
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Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
1021 idx_vector jdx = idxi.index_vector (); |
|
10519b4d6507
fix indexed numel for non-numeric indices
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diff
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|
1022 if (error_state) |
|
10519b4d6507
fix indexed numel for non-numeric indices
Jaroslav Hajek <highegg@gmail.com>
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9806
diff
changeset
|
1023 break; |
|
10519b4d6507
fix indexed numel for non-numeric indices
Jaroslav Hajek <highegg@gmail.com>
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9806
diff
changeset
|
1024 retval *= jdx.length (dv(i)); |
|
10519b4d6507
fix indexed numel for non-numeric indices
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diff
changeset
|
1025 } |
|
9705
5acd99c3e794
avoid recursive overloaded calls in builtin numel
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9487
diff
changeset
|
1026 } |
|
5acd99c3e794
avoid recursive overloaded calls in builtin numel
Jaroslav Hajek <highegg@gmail.com>
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9487
diff
changeset
|
1027 } |
|
5acd99c3e794
avoid recursive overloaded calls in builtin numel
Jaroslav Hajek <highegg@gmail.com>
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changeset
|
1028 |
|
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avoid recursive overloaded calls in builtin numel
Jaroslav Hajek <highegg@gmail.com>
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|
1029 return retval; |
|
5acd99c3e794
avoid recursive overloaded calls in builtin numel
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diff
changeset
|
1030 } |
|
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avoid recursive overloaded calls in builtin numel
Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
1031 |
|
10033
f349847c4541
optimize cellfun (@subsref, args, {subs}, uniformoutput, true) case
Jaroslav Hajek <highegg@gmail.com>
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9842
diff
changeset
|
1032 void |
|
f349847c4541
optimize cellfun (@subsref, args, {subs}, uniformoutput, true) case
Jaroslav Hajek <highegg@gmail.com>
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9842
diff
changeset
|
1033 decode_subscripts (const char* name, const octave_value& arg, |
|
10315
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untabify src C++ source files
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|
1034 std::string& type_string, |
|
57a59eae83cc
untabify src C++ source files
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|
1035 std::list<octave_value_list>& idx) |
|
10033
f349847c4541
optimize cellfun (@subsref, args, {subs}, uniformoutput, true) case
Jaroslav Hajek <highegg@gmail.com>
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9842
diff
changeset
|
1036 { |
|
f349847c4541
optimize cellfun (@subsref, args, {subs}, uniformoutput, true) case
Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
1037 Octave_map m = arg.map_value (); |
|
f349847c4541
optimize cellfun (@subsref, args, {subs}, uniformoutput, true) case
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9842
diff
changeset
|
1038 |
|
f349847c4541
optimize cellfun (@subsref, args, {subs}, uniformoutput, true) case
Jaroslav Hajek <highegg@gmail.com>
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9842
diff
changeset
|
1039 if (! error_state |
|
f349847c4541
optimize cellfun (@subsref, args, {subs}, uniformoutput, true) case
Jaroslav Hajek <highegg@gmail.com>
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9842
diff
changeset
|
1040 && m.nfields () == 2 && m.contains ("type") && m.contains ("subs")) |
|
f349847c4541
optimize cellfun (@subsref, args, {subs}, uniformoutput, true) case
Jaroslav Hajek <highegg@gmail.com>
parents:
9842
diff
changeset
|
1041 { |
|
f349847c4541
optimize cellfun (@subsref, args, {subs}, uniformoutput, true) case
Jaroslav Hajek <highegg@gmail.com>
parents:
9842
diff
changeset
|
1042 Cell& type = m.contents ("type"); |
|
f349847c4541
optimize cellfun (@subsref, args, {subs}, uniformoutput, true) case
Jaroslav Hajek <highegg@gmail.com>
parents:
9842
diff
changeset
|
1043 Cell& subs = m.contents ("subs"); |
|
f349847c4541
optimize cellfun (@subsref, args, {subs}, uniformoutput, true) case
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diff
changeset
|
1044 |
|
f349847c4541
optimize cellfun (@subsref, args, {subs}, uniformoutput, true) case
Jaroslav Hajek <highegg@gmail.com>
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9842
diff
changeset
|
1045 type_string = std::string (type.length(), '\0'); |
|
f349847c4541
optimize cellfun (@subsref, args, {subs}, uniformoutput, true) case
Jaroslav Hajek <highegg@gmail.com>
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9842
diff
changeset
|
1046 |
|
f349847c4541
optimize cellfun (@subsref, args, {subs}, uniformoutput, true) case
Jaroslav Hajek <highegg@gmail.com>
parents:
9842
diff
changeset
|
1047 for (int k = 0; k < type.length (); k++) |
|
10315
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untabify src C++ source files
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|
1048 { |
|
57a59eae83cc
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10257
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changeset
|
1049 std::string item = type(k).string_value (); |
|
10033
f349847c4541
optimize cellfun (@subsref, args, {subs}, uniformoutput, true) case
Jaroslav Hajek <highegg@gmail.com>
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9842
diff
changeset
|
1050 |
|
10315
57a59eae83cc
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changeset
|
1051 if (! error_state) |
|
57a59eae83cc
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10257
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changeset
|
1052 { |
|
57a59eae83cc
untabify src C++ source files
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10257
diff
changeset
|
1053 if (item == "{}") |
|
57a59eae83cc
untabify src C++ source files
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parents:
10257
diff
changeset
|
1054 type_string[k] = '{'; |
|
57a59eae83cc
untabify src C++ source files
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10257
diff
changeset
|
1055 else if (item == "()") |
|
57a59eae83cc
untabify src C++ source files
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10257
diff
changeset
|
1056 type_string[k] = '('; |
|
57a59eae83cc
untabify src C++ source files
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10257
diff
changeset
|
1057 else if (item == ".") |
|
57a59eae83cc
untabify src C++ source files
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10257
diff
changeset
|
1058 type_string[k] = '.'; |
|
57a59eae83cc
untabify src C++ source files
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changeset
|
1059 else |
|
57a59eae83cc
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changeset
|
1060 { |
|
57a59eae83cc
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changeset
|
1061 error("%s: invalid indexing type `%s'", name, item.c_str ()); |
|
57a59eae83cc
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changeset
|
1062 return; |
|
57a59eae83cc
untabify src C++ source files
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10257
diff
changeset
|
1063 } |
|
57a59eae83cc
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changeset
|
1064 } |
|
57a59eae83cc
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10257
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changeset
|
1065 else |
|
57a59eae83cc
untabify src C++ source files
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changeset
|
1066 { |
|
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1067 error ("%s: expecting type(%d) to be a character string", |
|
57a59eae83cc
untabify src C++ source files
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changeset
|
1068 name, k+1); |
|
57a59eae83cc
untabify src C++ source files
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changeset
|
1069 return; |
|
57a59eae83cc
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diff
changeset
|
1070 } |
|
10033
f349847c4541
optimize cellfun (@subsref, args, {subs}, uniformoutput, true) case
Jaroslav Hajek <highegg@gmail.com>
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9842
diff
changeset
|
1071 |
|
10315
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changeset
|
1072 octave_value_list idx_item; |
|
10033
f349847c4541
optimize cellfun (@subsref, args, {subs}, uniformoutput, true) case
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9842
diff
changeset
|
1073 |
|
10315
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changeset
|
1074 if (subs(k).is_string ()) |
|
57a59eae83cc
untabify src C++ source files
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changeset
|
1075 idx_item(0) = subs(k); |
|
57a59eae83cc
untabify src C++ source files
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changeset
|
1076 else if (subs(k).is_cell ()) |
|
57a59eae83cc
untabify src C++ source files
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changeset
|
1077 { |
|
57a59eae83cc
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changeset
|
1078 Cell subs_cell = subs(k).cell_value (); |
|
10033
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optimize cellfun (@subsref, args, {subs}, uniformoutput, true) case
Jaroslav Hajek <highegg@gmail.com>
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9842
diff
changeset
|
1079 |
|
10315
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untabify src C++ source files
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changeset
|
1080 for (int n = 0; n < subs_cell.length (); n++) |
|
57a59eae83cc
untabify src C++ source files
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10257
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changeset
|
1081 { |
|
57a59eae83cc
untabify src C++ source files
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10257
diff
changeset
|
1082 if (subs_cell(n).is_string () |
|
57a59eae83cc
untabify src C++ source files
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10257
diff
changeset
|
1083 && subs_cell(n).string_value () == ":") |
|
57a59eae83cc
untabify src C++ source files
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10257
diff
changeset
|
1084 idx_item(n) = octave_value(octave_value::magic_colon_t); |
|
57a59eae83cc
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diff
changeset
|
1085 else |
|
57a59eae83cc
untabify src C++ source files
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10257
diff
changeset
|
1086 idx_item(n) = subs_cell(n); |
|
57a59eae83cc
untabify src C++ source files
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10257
diff
changeset
|
1087 } |
|
57a59eae83cc
untabify src C++ source files
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10257
diff
changeset
|
1088 } |
|
57a59eae83cc
untabify src C++ source files
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10257
diff
changeset
|
1089 else |
|
57a59eae83cc
untabify src C++ source files
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parents:
10257
diff
changeset
|
1090 { |
|
57a59eae83cc
untabify src C++ source files
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10257
diff
changeset
|
1091 error ("%s: expecting subs(%d) to be a character string or cell array", |
|
57a59eae83cc
untabify src C++ source files
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10257
diff
changeset
|
1092 name, k+1); |
|
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1093 return; |
|
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1094 } |
|
10033
f349847c4541
optimize cellfun (@subsref, args, {subs}, uniformoutput, true) case
Jaroslav Hajek <highegg@gmail.com>
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9842
diff
changeset
|
1095 |
|
10315
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changeset
|
1096 idx.push_back (idx_item); |
|
57a59eae83cc
untabify src C++ source files
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10257
diff
changeset
|
1097 } |
|
10033
f349847c4541
optimize cellfun (@subsref, args, {subs}, uniformoutput, true) case
Jaroslav Hajek <highegg@gmail.com>
parents:
9842
diff
changeset
|
1098 } |
|
f349847c4541
optimize cellfun (@subsref, args, {subs}, uniformoutput, true) case
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1099 else |
|
f349847c4541
optimize cellfun (@subsref, args, {subs}, uniformoutput, true) case
Jaroslav Hajek <highegg@gmail.com>
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|
1100 error ("%s: second argument must be a structure with fields `type' and `subs'", name); |
|
f349847c4541
optimize cellfun (@subsref, args, {subs}, uniformoutput, true) case
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|
1101 } |
|
f349847c4541
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|
1102 |
| 4478 | 1103 Matrix |
| 5275 | 1104 identity_matrix (octave_idx_type nr, octave_idx_type nc) |
| 4478 | 1105 { |
| 1106 Matrix m (nr, nc, 0.0); | |
| 1107 | |
| 1108 if (nr > 0 && nc > 0) | |
| 1109 { | |
| 5275 | 1110 octave_idx_type n = std::min (nr, nc); |
| 4478 | 1111 |
| 5275 | 1112 for (octave_idx_type i = 0; i < n; i++) |
|
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untabify src C++ source files
John W. Eaton <jwe@octave.org>
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|
1113 m (i, i) = 1.0; |
| 4478 | 1114 } |
| 1115 | |
| 1116 return m; | |
| 1117 } | |
| 1118 | |
|
7789
82be108cc558
First attempt at single precision tyeps
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parents:
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diff
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|
1119 FloatMatrix |
|
82be108cc558
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diff
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|
1120 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
|
1121 { |
|
82be108cc558
First attempt at single precision tyeps
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diff
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|
1122 FloatMatrix m (nr, nc, 0.0); |
|
82be108cc558
First attempt at single precision tyeps
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diff
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|
1123 |
|
82be108cc558
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|
1124 if (nr > 0 && nc > 0) |
|
82be108cc558
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diff
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|
1125 { |
|
82be108cc558
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diff
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|
1126 octave_idx_type n = std::min (nr, nc); |
|
82be108cc558
First attempt at single precision tyeps
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|
1127 |
|
82be108cc558
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|
1128 for (octave_idx_type i = 0; i < n; i++) |
|
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untabify src C++ source files
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|
1129 m (i, i) = 1.0; |
|
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|
1130 } |
|
82be108cc558
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diff
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|
1131 |
|
82be108cc558
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diff
changeset
|
1132 return m; |
|
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diff
changeset
|
1133 } |
|
82be108cc558
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diff
changeset
|
1134 |
|
8012
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fix extern decls in .cc files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1135 int |
| 3622 | 1136 octave_format (std::ostream& os, const char *fmt, ...) |
| 3620 | 1137 { |
| 1138 int retval = -1; | |
| 1139 | |
| 1140 va_list args; | |
| 1141 va_start (args, fmt); | |
| 1142 | |
| 1143 retval = octave_vformat (os, fmt, args); | |
| 1144 | |
| 1145 va_end (args); | |
| 1146 | |
| 1147 return retval; | |
| 1148 } | |
| 1149 | |
|
8012
63dbb85452cc
fix extern decls in .cc files
John W. Eaton <jwe@octave.org>
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|
1150 int |
| 3622 | 1151 octave_vformat (std::ostream& os, const char *fmt, va_list args) |
| 3620 | 1152 { |
| 1153 int retval = -1; | |
| 1154 | |
| 3775 | 1155 #if defined (__GNUG__) && !CXX_ISO_COMPLIANT_LIBRARY |
| 3620 | 1156 |
| 4135 | 1157 std::streambuf *sb = os.rdbuf (); |
| 1158 | |
| 1159 if (sb) | |
| 4302 | 1160 { |
| 1161 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; | |
| 1162 | |
| 1163 retval = sb->vform (fmt, args); | |
| 1164 | |
| 1165 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; | |
| 1166 } | |
| 3620 | 1167 |
| 1168 #else | |
| 1169 | |
| 1170 char *s = octave_vsnprintf (fmt, args); | |
| 1171 | |
| 1172 if (s) | |
| 1173 { | |
| 1174 os << s; | |
| 1175 | |
| 1176 retval = strlen (s); | |
| 1177 } | |
| 1178 | |
| 1179 #endif | |
| 1180 | |
| 1181 return retval; | |
| 1182 } | |
| 1183 | |
| 4302 | 1184 // We manage storage. User should not free it, and its contents are |
| 1185 // only valid until next call to vsnprintf. | |
| 1186 | |
| 1187 // Interrupts might happen if someone makes a call with something that | |
| 1188 // will require a very large buffer. If we are interrupted in that | |
| 1189 // case, we should make the buffer size smaller for the next call. | |
| 1190 | |
| 1191 #define BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE_FOR_VSNPRINTF \ | |
| 1192 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE_1; \ | |
| 1193 delete [] buf; \ | |
| 1194 buf = 0; \ | |
| 1195 size = initial_size; \ | |
|
7481
78f3811155f7
use exceptions in liboctave error handler
John W. Eaton <jwe@octave.org>
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diff
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|
1196 octave_rethrow_exception (); \ |
| 4302 | 1197 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE_2 |
| 1198 | |
| 4485 | 1199 #if defined __GNUC__ && defined __va_copy |
| 1200 #define SAVE_ARGS(saved_args, args) __va_copy (saved_args, args) | |
| 1201 #elif defined va_copy | |
| 1202 #define SAVE_ARGS(saved_args, args) va_copy (saved_args, args) | |
| 1203 #else | |
| 1204 #define SAVE_ARGS(saved_args, args) saved_args = args | |
| 1205 #endif | |
| 1206 | |
| 4302 | 1207 char * |
| 1208 octave_vsnprintf (const char *fmt, va_list args) | |
| 1209 { | |
| 1210 static const size_t initial_size = 100; | |
| 1211 | |
| 1212 static size_t size = initial_size; | |
| 1213 | |
| 1214 static char *buf = 0; | |
| 1215 | |
|
8929
379297a149f0
utils.cc (octave_vsnprintf): avoid uninitialized variable warning
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
1216 int nchars = 0; |
| 4302 | 1217 |
| 1218 if (! buf) | |
| 1219 buf = new char [size]; | |
| 1220 | |
| 1221 if (! buf) | |
| 1222 return 0; | |
| 1223 | |
| 1224 while (1) | |
| 1225 { | |
| 4485 | 1226 va_list saved_args; |
| 1227 | |
| 1228 SAVE_ARGS (saved_args, args); | |
| 1229 | |
| 4302 | 1230 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE_FOR_VSNPRINTF; |
| 1231 | |
| 4485 | 1232 nchars = octave_raw_vsnprintf (buf, size, fmt, saved_args); |
| 1233 | |
| 1234 va_end (saved_args); | |
| 4302 | 1235 |
| 1236 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; | |
| 1237 | |
|
10257
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
1238 if (nchars > -1 && nchars < size) |
|
cd550069240e
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
1239 break; |
| 4302 | 1240 else |
|
10257
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diff
changeset
|
1241 { |
|
cd550069240e
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
1242 delete [] buf; |
| 4302 | 1243 |
|
10257
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diff
changeset
|
1244 size = nchars + 1;; |
|
cd550069240e
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diff
changeset
|
1245 |
|
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diff
changeset
|
1246 buf = new char [size]; |
| 4302 | 1247 |
|
10257
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diff
changeset
|
1248 if (! buf) |
|
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diff
changeset
|
1249 return 0; |
|
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
1250 } |
| 4302 | 1251 } |
| 1252 | |
| 1253 return buf; | |
| 1254 } | |
| 1255 | |
| 1256 char * | |
| 1257 octave_snprintf (const char *fmt, ...) | |
| 1258 { | |
| 1259 char *retval = 0; | |
| 1260 | |
| 1261 va_list args; | |
| 1262 va_start (args, fmt); | |
| 1263 | |
| 1264 retval = octave_vsnprintf (fmt, args); | |
| 1265 | |
| 1266 va_end (args); | |
| 1267 | |
| 1268 return retval; | |
| 1269 } | |
| 1270 | |
| 4086 | 1271 void |
| 1272 octave_sleep (double seconds) | |
| 1273 { | |
| 1274 if (seconds > 0) | |
| 1275 { | |
| 1276 double t; | |
| 1277 | |
| 4093 | 1278 unsigned int usec |
|
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|
1279 = static_cast<unsigned int> (modf (seconds, &t) * 1000000); |
| 4086 | 1280 |
| 4093 | 1281 unsigned int sec |
|
10315
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diff
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|
1282 = (t > UINT_MAX) ? UINT_MAX : static_cast<unsigned int> (t); |
| 4086 | 1283 |
| 5770 | 1284 // Versions of these functions that accept unsigned int args are |
| 1285 // defined in cutils.c. | |
| 4086 | 1286 octave_sleep (sec); |
| 1287 octave_usleep (usec); | |
|
10070
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correctly handle interrupts in pause()
Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
1288 |
|
10142
829e69ec3110
make OCTAVE_QUIT a function
Jaroslav Hajek <highegg@gmail.com>
parents:
10086
diff
changeset
|
1289 octave_quit (); |
| 4086 | 1290 } |
| 1291 } | |
| 1292 | |
|
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|
1293 DEFUN (isindex, args, , |
|
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|
1294 "-*- texinfo -*-\n\ |
|
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diff
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|
1295 @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
|
1296 Returns true if @var{ind} is a valid index. Valid indices can be\n\ |
|
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|
1297 either positive integers (though possibly real data), or logical arrays.\n\ |
|
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1298 If present, @var{n} specifies the extent of the dimension to be indexed.\n\ |
|
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|
1299 Note that, if possible, the internal conversion result is cached so that\n\ |
|
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|
1300 subsequent indexing will not perform the checking again.\n\ |
|
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|
1301 @end deftypefn") |
|
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|
1302 { |
|
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|
1303 octave_value retval; |
|
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|
1304 int nargin = args.length (); |
|
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|
1305 octave_idx_type n = 0; |
|
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|
1306 |
|
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|
1307 if (nargin == 2) |
|
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1308 n = args(1).idx_type_value (); |
|
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1309 else if (nargin != 1) |
|
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|
1310 print_usage (); |
|
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|
1311 |
|
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1312 if (! error_state) |
|
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|
1313 { |
|
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|
1314 unwind_protect frame; |
|
10605
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1315 |
|
10613
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diff
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|
1316 frame.protect_var (Vallow_noninteger_range_as_index); |
|
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1317 Vallow_noninteger_range_as_index = false; |
|
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1318 |
|
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1319 frame.protect_var (error_state); |
|
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1320 |
|
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|
1321 frame.protect_var (discard_error_messages); |
|
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1322 discard_error_messages = true; |
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1323 |
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1324 try |
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1325 { |
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1326 idx_vector idx = args(0).index_vector (); |
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1327 if (! error_state) |
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1328 { |
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1329 if (nargin == 2) |
|
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1330 retval = idx.extent (n) <= n; |
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1331 else |
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1332 retval = true; |
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1333 } |
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1334 else |
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1335 retval = false; |
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|
1336 } |
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1337 catch (octave_execution_exception) |
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1338 { |
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1339 retval = false; |
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1340 } |
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1341 } |
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1342 |
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1343 return retval; |
|
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1344 } |
|
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1345 |
|
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|
1346 octave_value_list |
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1347 do_simple_cellfun (octave_value_list (*fun) (const octave_value_list&, int), |
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1348 const char *fun_name, const octave_value_list& args, |
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1349 int nargout) |
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1350 { |
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1351 octave_value_list new_args = args, retval; |
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1352 int nargin = args.length (); |
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1353 OCTAVE_LOCAL_BUFFER (bool, iscell, nargin); |
|
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1354 OCTAVE_LOCAL_BUFFER (Cell, cells, nargin); |
|
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1355 OCTAVE_LOCAL_BUFFER (Cell, rcells, nargout); |
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1356 |
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1357 const Cell *ccells = cells; |
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1358 |
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1359 octave_idx_type numel = 1; |
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1360 dim_vector dims (1, 1); |
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1361 |
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1362 for (int i = 0; i < nargin; i++) |
|
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1363 { |
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1364 octave_value arg = new_args(i); |
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1365 iscell[i] = arg.is_cell (); |
|
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1366 if (iscell[i]) |
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1367 { |
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1368 cells[i] = arg.cell_value (); |
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Jaroslav Hajek <highegg@gmail.com>
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1369 octave_idx_type n = ccells[i].numel (); |
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1370 if (n == 1) |
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1371 { |
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1372 iscell[i] = false; |
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1373 new_args(i) = ccells[i](0); |
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1374 } |
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1375 else if (numel == 1) |
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1376 { |
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1377 numel = n; |
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1378 dims = ccells[i].dims (); |
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1379 } |
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1380 else if (dims != ccells[i].dims ()) |
|
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1381 { |
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|
1382 error ("%s: cell arguments must have matching sizes", fun_name); |
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1383 break; |
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1384 } |
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1385 } |
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1386 } |
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|
1387 |
|
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1388 if (! error_state) |
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1389 { |
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1390 for (int i = 0; i < nargout; i++) |
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1391 rcells[i].clear (dims); |
|
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1392 |
|
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1393 for (octave_idx_type j = 0; j < numel; j++) |
|
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1394 { |
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1395 for (int i = 0; i < nargin; i++) |
|
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1396 if (iscell[i]) |
|
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1397 new_args(i) = ccells[i](j); |
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1398 |
|
10142
829e69ec3110
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|
1399 octave_quit (); |
|
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1400 |
|
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1401 const octave_value_list tmp = fun (new_args, nargout); |
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1402 |
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1403 if (tmp.length () < nargout) |
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1404 { |
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1405 error ("%s: do_simple_cellfun: internal error", fun_name); |
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1406 break; |
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1407 } |
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1408 else |
|
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1409 { |
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1410 for (int i = 0; i < nargout; i++) |
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1411 rcells[i](j) = tmp(i); |
|
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1412 } |
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1413 } |
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1414 } |
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1415 |
|
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1416 if (! error_state) |
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|
1417 { |
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1418 retval.resize (nargout); |
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1419 for (int i = 0; i < nargout; i++) |
|
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1420 retval(i) = rcells[i]; |
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1421 } |
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|
1422 |
|
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1423 return retval; |
|
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1424 } |
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|
1425 |
|
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1426 octave_value |
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1427 do_simple_cellfun (octave_value_list (*fun) (const octave_value_list&, int), |
|
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1428 const char *fun_name, const octave_value_list& args) |
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1429 { |
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1430 octave_value retval; |
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1431 const octave_value_list tmp = do_simple_cellfun (fun, fun_name, args, 1); |
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1432 if (tmp.length () > 0) |
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1433 retval = tmp(0); |
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|
1434 |
|
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1435 return retval; |
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1436 } |