Mercurial > hg > octave-nkf
annotate src/utils.cc @ 13985:43cc49c7abd1
Use thread-safe atomic reference counting (GCC and MSVC).
* configure.ac: New --enable-atomic-refcount argument.
(octave_allocator): Fix USE_OCTAVE_ALLOCATOR variable assignment.
(OCTAVE_CONFIG_INCLUDED): New macro in config.h.
* oct-refcount.h (OCTREFCOUNT_ATOMIC_INCREMENT,
OCTREFCOUNT_ATOMIC_INCREMENT_POST, OCTREFCOUNT_ATOMIC_DECREMENT,
OCTREFCOUNT_ATOMIC_DECREMENT_POST): New macro, defined for MSVC and GCC
when USE_ATOMIC_REFCOUNT is defined.
(octave_refcount:operator++, octave_refcount::operator--): Use them.
(octave_refcount::operator count_type): Cast returned value to volatile.
(octave_refcount::direct): Remove unsafe member.
* Array.h (Array::make_unique): Delete rep if refcount reaches 0.
* Sparse.h (Sparse::make_unique): Delete rep if refcount reaches 0.
* Array.h (Array:~Array, Array::operator=): Delete rep only when refcount is
excatly 0.
* Array.cc (Array::clear): Likewise.
* Sparse.cc (Sparse::~Sparse, Sparse::operator=): Likewise.
* SparseCmplxQR.h (SparseCmplxQR::~SparseCmplxQR, SparseCmplxQR::operator=):
Likewise.
* SparseQR.h (SparseQR::~SparseQR, SparseQR::operator=): Likewise.
* sparse-base-chol.h (sparse_base_chol::~sparse_base_chol,
sparse_base_chol::operator): Likewise.
* dim-vector.h (oct-refcount.h): New included header.
(dim_vector::make_unique, dim_vector::resize): Use OCTREFCOUNT_ATOMIC_DECREMENT
macro and delete rep when refcount reaches 0.
(dim_vector::dim_vector): Use OCTREFCOUNT_ATOMIC_INCREMENT.
(dim_vector::operator=): Use OCTREFCOUNT_ATOMIC_INCREMENT and
OCTREFCOUNT_ATOMIC_DECREMENT.
(dim_vector::~dim_vector): Use OCTREFCOUNT_ATOMIC_DECREMENT.
* oct-mutex.h (oct-refcount.h): New included header.
(octave_base_mutex::count): Use octave_refcount class.
* gl-render.cc (oct-refcount.h): New included header.
* graphics.h.in (oct-refcount.h): Likewise.
(base_property::count, base_graphics_toolkit::count,
base_graphics_object::count, base_graphics_event::count): Use octave_refcount.
(property::~property, property::operator=): Delete rep only when refcountn is
excatly 0.
* oct-map.h (octave_fields::make_unique): Delete rep when refcount reaches 0.
* oct-stream.h (oct-refcount.h): New included header.
(octave_base_stream::count): Use octave_refcount class.
* ov.h (octave_value::make_unique): Delete rep when refcount reaches 0.
* symtab.h (oct-refcount.h): New included header.
(symbol_record_rep::count, fcn_info_rep::count): Use octave_refcount class.
* DLD-FUNCTIONS/urlwrite.cc (oct-refcount.h): New included header.
(curl_handle_rep::count): Use octave_refcount class.
| author | Michael Goffioul <michael.goffioul@gmail.com> |
|---|---|
| date | Sat, 03 Dec 2011 15:19:42 +0000 |
| parents | 6ead4dc1ca55 |
| children | 051a8f94b6f8 |
| 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 |
| 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" |
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45 #include "lo-utils.h" |
| 1651 | 46 #include "oct-cmplx.h" |
| 2926 | 47 #include "oct-env.h" |
| 3040 | 48 #include "pathsearch.h" |
| 1755 | 49 #include "str-vec.h" |
| 1651 | 50 |
| 4216 | 51 #include "Cell.h" |
| 2492 | 52 #include <defaults.h> |
| 1352 | 53 #include "defun.h" |
| 54 #include "dirfns.h" | |
| 55 #include "error.h" | |
| 56 #include "gripes.h" | |
| 57 #include "input.h" | |
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58 #include "lex.h" |
| 5832 | 59 #include "load-path.h" |
| 5465 | 60 #include "oct-errno.h" |
| 1742 | 61 #include "oct-hist.h" |
| 1750 | 62 #include "oct-obj.h" |
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63 #include "ov-range.h" |
| 1352 | 64 #include "pager.h" |
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65 #include "parse.h" |
| 1690 | 66 #include "sysdep.h" |
| 1750 | 67 #include "toplev.h" |
| 1 | 68 #include "unwind-prot.h" |
| 1352 | 69 #include "utils.h" |
| 70 #include "variables.h" | |
| 1 | 71 |
| 4143 | 72 // Return TRUE if S is a valid identifier. |
| 73 | |
| 74 bool | |
| 75 valid_identifier (const char *s) | |
| 76 { | |
| 5290 | 77 if (! s || ! (isalpha (*s) || *s == '_' || *s == '$')) |
| 4143 | 78 return false; |
| 79 | |
| 80 while (*++s != '\0') | |
| 5290 | 81 if (! (isalnum (*s) || *s == '_' || *s == '$')) |
| 4143 | 82 return false; |
| 83 | |
| 84 return true; | |
| 85 } | |
| 86 | |
| 87 bool | |
| 88 valid_identifier (const std::string& s) | |
| 89 { | |
| 90 return valid_identifier (s.c_str ()); | |
| 91 } | |
| 92 | |
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93 DEFUN (isvarname, args, , |
| 5040 | 94 "-*- texinfo -*-\n\ |
| 95 @deftypefn {Built-in Function} {} isvarname (@var{name})\n\ | |
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96 Return true if @var{name} is a valid variable name.\n\ |
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97 @seealso{iskeyword, exist, who}\n\ |
| 4264 | 98 @end deftypefn") |
| 99 { | |
| 100 octave_value retval; | |
| 101 | |
| 102 int argc = args.length () + 1; | |
| 103 | |
| 4610 | 104 string_vector argv = args.make_argv ("isvarname"); |
| 4264 | 105 |
| 106 if (error_state) | |
| 107 return retval; | |
| 108 | |
| 109 if (argc == 2) | |
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110 retval = valid_identifier (argv[1]) && ! is_keyword (argv[1]); |
| 4264 | 111 else |
| 5823 | 112 print_usage (); |
| 4264 | 113 |
| 114 return retval; | |
| 115 } | |
| 116 | |
| 13094 | 117 /* |
| 118 %!error isvarname (); | |
| 119 %!error isvarname ("foo", "bar"); | |
| 120 | |
| 121 %!assert (isvarname ("foo"), true); | |
| 122 %!assert (isvarname ("_foo"), true); | |
| 123 %!assert (isvarname ("_1"), true); | |
| 124 %!assert (isvarname ("1foo"), false); | |
| 125 %!assert (isvarname (""), false); | |
| 126 */ | |
| 127 | |
| 6323 | 128 // Return TRUE if F and G are both names for the same file. |
| 129 | |
| 130 bool | |
| 131 same_file (const std::string& f, const std::string& g) | |
| 132 { | |
| 6598 | 133 return same_file_internal (f, g); |
| 6323 | 134 } |
| 135 | |
| 1 | 136 int |
| 3523 | 137 almost_match (const std::string& std, const std::string& s, int min_match_len, |
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138 int case_sens) |
| 1 | 139 { |
| 1755 | 140 int stdlen = std.length (); |
| 141 int slen = s.length (); | |
| 1 | 142 |
| 143 return (slen <= stdlen | |
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144 && slen >= min_match_len |
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145 && (case_sens |
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146 ? (strncmp (std.c_str (), s.c_str (), slen) == 0) |
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147 : (octave_strncasecmp (std.c_str (), s.c_str (), slen) == 0))); |
| 287 | 148 } |
| 149 | |
| 581 | 150 // Ugh. |
| 151 | |
| 287 | 152 int |
| 3523 | 153 keyword_almost_match (const char * const *std, int *min_len, const std::string& s, |
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154 int min_toks_to_match, int max_toks) |
| 287 | 155 { |
| 156 int status = 0; | |
| 157 int tok_count = 0; | |
| 158 int toks_matched = 0; | |
| 159 | |
| 1755 | 160 if (s.empty () || max_toks < 1) |
| 287 | 161 return status; |
| 162 | |
| 1755 | 163 char *kw = strsave (s.c_str ()); |
| 287 | 164 |
| 165 char *t = kw; | |
| 166 while (*t != '\0') | |
| 167 { | |
| 168 if (*t == '\t') | |
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169 *t = ' '; |
| 287 | 170 t++; |
| 171 } | |
| 172 | |
| 173 char *beg = kw; | |
| 174 while (*beg == ' ') | |
| 175 beg++; | |
| 176 | |
| 177 if (*beg == '\0') | |
| 178 return status; | |
| 179 | |
| 180 | |
| 3072 | 181 const char **to_match = new const char * [max_toks + 1]; |
| 182 const char * const *s1 = std; | |
| 183 const char **s2 = to_match; | |
| 287 | 184 |
| 526 | 185 if (! s1 || ! s2) |
| 287 | 186 goto done; |
| 187 | |
| 188 s2[tok_count] = beg; | |
| 189 char *end; | |
| 526 | 190 while ((end = strchr (beg, ' ')) != 0) |
| 287 | 191 { |
| 192 *end = '\0'; | |
| 193 beg = end + 1; | |
| 194 | |
| 195 while (*beg == ' ') | |
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196 beg++; |
| 287 | 197 |
| 198 if (*beg == '\0') | |
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199 break; |
| 287 | 200 |
| 201 tok_count++; | |
| 202 if (tok_count >= max_toks) | |
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203 goto done; |
| 287 | 204 |
| 205 s2[tok_count] = beg; | |
| 206 } | |
| 526 | 207 s2[tok_count+1] = 0; |
| 287 | 208 |
| 209 s2 = to_match; | |
| 210 | |
| 211 for (;;) | |
| 212 { | |
| 213 if (! almost_match (*s1, *s2, min_len[toks_matched], 0)) | |
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214 goto done; |
| 287 | 215 |
| 216 toks_matched++; | |
| 217 | |
| 218 s1++; | |
| 219 s2++; | |
| 220 | |
| 221 if (! *s2) | |
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222 { |
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223 status = (toks_matched >= min_toks_to_match); |
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224 goto done; |
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225 } |
| 287 | 226 |
| 227 if (! *s1) | |
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228 goto done; |
| 287 | 229 } |
| 230 | |
| 231 done: | |
| 232 | |
| 233 delete [] kw; | |
| 234 delete [] to_match; | |
| 235 | |
| 236 return status; | |
| 1 | 237 } |
| 238 | |
| 2234 | 239 // Return non-zero if either NR or NC is zero. Return -1 if this |
| 240 // should be considered fatal; return 1 if this is ok. | |
| 241 | |
| 242 int | |
| 5275 | 243 empty_arg (const char * /* name */, octave_idx_type nr, octave_idx_type nc) |
| 2234 | 244 { |
| 4478 | 245 return (nr == 0 || nc == 0); |
| 2234 | 246 } |
| 247 | |
| 581 | 248 // See if the given file is in the path. |
| 249 | |
| 3536 | 250 std::string |
| 4243 | 251 search_path_for_file (const std::string& path, const string_vector& names) |
| 686 | 252 { |
| 3174 | 253 dir_path p (path); |
| 686 | 254 |
| 10250 | 255 return octave_env::make_absolute (p.find_first_of (names)); |
| 686 | 256 } |
| 257 | |
| 4216 | 258 // Find all locations of the given file in the path. |
| 259 | |
| 260 string_vector | |
| 4243 | 261 search_path_for_all_files (const std::string& path, const string_vector& names) |
| 4216 | 262 { |
| 263 dir_path p (path); | |
| 264 | |
| 4243 | 265 string_vector sv = p.find_all_first_of (names); |
| 4216 | 266 |
| 6379 | 267 octave_idx_type len = sv.length (); |
| 4216 | 268 |
| 6379 | 269 for (octave_idx_type i = 0; i < len; i++) |
| 10250 | 270 sv[i] = octave_env::make_absolute (sv[i]); |
| 4216 | 271 |
| 272 return sv; | |
| 273 } | |
| 274 | |
| 275 static string_vector | |
| 276 make_absolute (const string_vector& sv) | |
| 277 { | |
| 6379 | 278 octave_idx_type len = sv.length (); |
| 279 | |
| 280 string_vector retval (len); | |
| 4216 | 281 |
| 6379 | 282 for (octave_idx_type i = 0; i < len; i++) |
| 10250 | 283 retval[i] = octave_env::make_absolute (sv[i]); |
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284 |
| 6379 | 285 return retval; |
| 4216 | 286 } |
| 287 | |
| 3195 | 288 DEFUN (file_in_loadpath, args, , |
| 3446 | 289 "-*- texinfo -*-\n\ |
| 10840 | 290 @deftypefn {Built-in Function} {} file_in_loadpath (@var{file})\n\ |
| 4216 | 291 @deftypefnx {Built-in Function} {} file_in_loadpath (@var{file}, \"all\")\n\ |
| 3195 | 292 \n\ |
| 5448 | 293 Return the absolute name of @var{file} if it can be found in\n\ |
| 5814 | 294 the list of directories specified by @code{path}.\n\ |
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295 If no file is found, return an empty character string.\n\ |
| 4216 | 296 \n\ |
| 5448 | 297 If the first argument is a cell array of strings, search each\n\ |
| 4243 | 298 directory of the loadpath for element of the cell array and return\n\ |
| 299 the first that matches.\n\ | |
| 300 \n\ | |
| 4216 | 301 If the second optional argument @code{\"all\"} is supplied, return\n\ |
| 302 a cell array containing the list of all files that have the same\n\ | |
| 303 name in the path. If no files are found, return an empty cell array.\n\ | |
| 5814 | 304 @seealso{file_in_path, path}\n\ |
| 5642 | 305 @end deftypefn") |
| 3195 | 306 { |
| 4216 | 307 octave_value retval; |
| 3195 | 308 |
| 4243 | 309 int nargin = args.length (); |
| 3195 | 310 |
| 4243 | 311 if (nargin == 1 || nargin == 2) |
| 4216 | 312 { |
| 4243 | 313 string_vector names = args(0).all_strings (); |
| 314 | |
| 315 if (! error_state && names.length () > 0) | |
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316 { |
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317 if (nargin == 1) |
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318 retval = octave_env::make_absolute (load_path::find_first_of (names)); |
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319 else if (nargin == 2) |
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320 { |
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321 std::string opt = args(1).string_value (); |
| 4243 | 322 |
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323 if (! error_state && opt == "all") |
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324 retval = Cell (make_absolute |
| 10250 | 325 (load_path::find_all_first_of (names))); |
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326 else |
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327 error ("file_in_loadpath: invalid option"); |
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328 } |
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329 } |
| 4216 | 330 else |
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331 error ("file_in_loadpath: FILE argument must be a string"); |
| 4216 | 332 } |
| 3195 | 333 else |
| 5823 | 334 print_usage (); |
| 3195 | 335 |
| 336 return retval; | |
| 337 } | |
| 338 | |
| 13094 | 339 /* |
| 340 %!error file_in_loadpath (); | |
| 341 %!error file_in_loadpath ("foo", "bar", 1); | |
| 342 | |
| 343 %!test | |
| 344 %! f = file_in_loadpath ("plot.m"); | |
| 345 %! assert (ischar (f)); | |
| 346 %! assert (! isempty (f)); | |
| 347 | |
| 348 %!test | |
| 349 %! f = file_in_loadpath ("$$probably_!!_not_&&_a_!!_file$$"); | |
| 350 %! assert (f, ""); | |
| 351 | |
| 352 %!test | |
| 353 %! lst = file_in_loadpath ("$$probably_!!_not_&&_a_!!_file$$", "all"); | |
| 354 %! assert (lst, {}); | |
| 355 */ | |
| 356 | |
| 1957 | 357 DEFUN (file_in_path, args, , |
| 3301 | 358 "-*- texinfo -*-\n\ |
| 10840 | 359 @deftypefn {Built-in Function} {} file_in_path (@var{path}, @var{file})\n\ |
| 4216 | 360 @deftypefnx {Built-in Function} {} file_in_path (@var{path}, @var{file}, \"all\")\n\ |
| 5448 | 361 Return the absolute name of @var{file} if it can be found in\n\ |
| 3301 | 362 @var{path}. The value of @var{path} should be a colon-separated list of\n\ |
| 5814 | 363 directories in the format described for @code{path}. If no file\n\ |
| 10840 | 364 is found, return an empty character string. For example:\n\ |
| 3301 | 365 \n\ |
| 366 @example\n\ | |
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367 @group\n\ |
| 5456 | 368 file_in_path (EXEC_PATH, \"sh\")\n\ |
| 369 @result{} \"/bin/sh\"\n\ | |
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370 @end group\n\ |
| 3301 | 371 @end example\n\ |
| 4216 | 372 \n\ |
| 5448 | 373 If the second argument is a cell array of strings, search each\n\ |
| 4243 | 374 directory of the path for element of the cell array and return\n\ |
| 375 the first that matches.\n\ | |
| 376 \n\ | |
| 4216 | 377 If the third optional argument @code{\"all\"} is supplied, return\n\ |
| 378 a cell array containing the list of all files that have the same\n\ | |
| 379 name in the path. If no files are found, return an empty cell array.\n\ | |
| 4249 | 380 @seealso{file_in_loadpath}\n\ |
| 3301 | 381 @end deftypefn") |
| 686 | 382 { |
| 4216 | 383 octave_value retval; |
| 686 | 384 |
| 4243 | 385 int nargin = args.length (); |
| 1755 | 386 |
| 4243 | 387 if (nargin == 2 || nargin == 3) |
| 686 | 388 { |
| 4243 | 389 std::string path = args(0).string_value (); |
| 390 | |
| 391 if (! error_state) | |
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392 { |
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393 string_vector names = args(1).all_strings (); |
| 4243 | 394 |
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395 if (! error_state && names.length () > 0) |
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396 { |
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397 if (nargin == 2) |
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398 retval = search_path_for_file (path, names); |
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399 else if (nargin == 3) |
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400 { |
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401 std::string opt = args(2).string_value (); |
| 4243 | 402 |
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403 if (! error_state && opt == "all") |
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404 retval = Cell (make_absolute |
| 10250 | 405 (search_path_for_all_files (path, names))); |
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406 else |
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407 error ("file_in_path: invalid option"); |
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408 } |
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409 } |
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410 else |
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411 error ("file_in_path: all arguments must be strings"); |
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412 } |
| 1755 | 413 else |
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414 error ("file_in_path: PATH must be a string"); |
| 686 | 415 } |
| 416 else | |
| 5823 | 417 print_usage (); |
| 686 | 418 |
| 419 return retval; | |
| 420 } | |
| 421 | |
| 13094 | 422 /* |
| 423 %!error file_in_path (); | |
| 424 %!error file_in_path ("foo"); | |
| 425 %!error file_in_path ("foo", "bar", "baz", 1); | |
| 426 | |
| 427 %!test | |
| 428 %! f = file_in_path (path (), "plot.m"); | |
| 429 %! assert (ischar (f)); | |
| 430 %! assert (! isempty (f)); | |
| 431 | |
| 432 %!test | |
| 433 %! f = file_in_path (path (), "$$probably_!!_not_&&_a_!!_file$$"); | |
| 434 %! assert (f, ""); | |
| 435 | |
| 436 %!test | |
| 437 %! lst = file_in_path (path (), "$$probably_!!_not_&&_a_!!_file$$", "all"); | |
| 438 %! assert (lst, {}); | |
| 439 */ | |
| 440 | |
| 3536 | 441 std::string |
| 3523 | 442 file_in_path (const std::string& name, const std::string& suffix) |
| 526 | 443 { |
| 3523 | 444 std::string nm = name; |
| 526 | 445 |
| 1755 | 446 if (! suffix.empty ()) |
| 447 nm.append (suffix); | |
| 686 | 448 |
| 10250 | 449 return octave_env::make_absolute (load_path::find_file (nm)); |
| 526 | 450 } |
| 451 | |
| 581 | 452 // See if there is an function file in the path. If so, return the |
| 453 // full path to the file. | |
| 454 | |
| 3536 | 455 std::string |
| 3523 | 456 fcn_file_in_path (const std::string& name) |
| 526 | 457 { |
| 3523 | 458 std::string retval; |
| 908 | 459 |
| 1755 | 460 int len = name.length (); |
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461 |
| 1755 | 462 if (len > 0) |
| 463 { | |
| 5832 | 464 if (octave_env::absolute_pathname (name)) |
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465 { |
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466 file_stat fs (name); |
| 5832 | 467 |
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468 if (fs.exists ()) |
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469 retval = name; |
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470 } |
| 5832 | 471 else if (len > 2 && name [len - 2] == '.' && name [len - 1] == 'm') |
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472 retval = load_path::find_fcn_file (name.substr (0, len-2)); |
| 908 | 473 else |
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474 { |
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475 std::string fname = name; |
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476 size_t pos = name.find_first_of (Vfilemarker); |
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477 if (pos != std::string::npos) |
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478 fname = name.substr (0, pos); |
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479 |
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480 retval = load_path::find_fcn_file (fname); |
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481 } |
| 908 | 482 } |
| 1755 | 483 |
| 484 return retval; | |
| 526 | 485 } |
| 486 | |
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487 // See if there is a directory called "name" in the path and if it |
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488 // contains a Contents.m file return the full path to this file. |
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489 |
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490 std::string |
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491 contents_file_in_path (const std::string& dir) |
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492 { |
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493 std::string retval; |
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494 |
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495 if (dir.length () > 0) |
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496 { |
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497 std::string tcontents = file_ops::concat (load_path::find_dir (dir), |
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498 std::string ("Contents.m")); |
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499 |
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500 file_stat fs (tcontents); |
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501 |
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502 if (fs.exists ()) |
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503 retval = octave_env::make_absolute (tcontents); |
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504 } |
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505 |
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506 return retval; |
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507 } |
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508 |
| 5864 | 509 // See if there is a .oct file in the path. If so, return the |
| 581 | 510 // full path to the file. |
| 511 | |
| 3536 | 512 std::string |
| 3523 | 513 oct_file_in_path (const std::string& name) |
| 572 | 514 { |
| 3523 | 515 std::string retval; |
| 908 | 516 |
| 1755 | 517 int len = name.length (); |
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518 |
| 1755 | 519 if (len > 0) |
| 520 { | |
| 5832 | 521 if (octave_env::absolute_pathname (name)) |
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522 { |
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523 file_stat fs (name); |
| 5832 | 524 |
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525 if (fs.exists ()) |
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526 retval = name; |
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527 } |
| 5832 | 528 else if (len > 4 && name [len - 4] == '.' && name [len - 3] == 'o' |
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529 && name [len - 2] == 'c' && name [len - 1] == 't') |
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530 retval = load_path::find_oct_file (name.substr (0, len-4)); |
| 908 | 531 else |
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532 retval = load_path::find_oct_file (name); |
| 908 | 533 } |
| 1755 | 534 |
| 535 return retval; | |
| 572 | 536 } |
| 537 | |
| 5864 | 538 // See if there is a .mex file in the path. If so, return the |
| 539 // full path to the file. | |
| 540 | |
| 541 std::string | |
| 542 mex_file_in_path (const std::string& name) | |
| 543 { | |
| 544 std::string retval; | |
| 545 | |
| 546 int len = name.length (); | |
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547 |
| 5864 | 548 if (len > 0) |
| 549 { | |
| 550 if (octave_env::absolute_pathname (name)) | |
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551 { |
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552 file_stat fs (name); |
| 5864 | 553 |
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554 if (fs.exists ()) |
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555 retval = name; |
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556 } |
| 5864 | 557 else if (len > 4 && name [len - 4] == '.' && name [len - 3] == 'm' |
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558 && name [len - 2] == 'e' && name [len - 1] == 'x') |
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559 retval = load_path::find_mex_file (name.substr (0, len-4)); |
| 5864 | 560 else |
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561 retval = load_path::find_mex_file (name); |
| 5864 | 562 } |
| 563 | |
| 564 return retval; | |
| 565 } | |
| 566 | |
| 3103 | 567 // Replace backslash escapes in a string with the real values. |
| 568 | |
| 3536 | 569 std::string |
| 3523 | 570 do_string_escapes (const std::string& s) |
| 3103 | 571 { |
| 3523 | 572 std::string retval; |
| 3103 | 573 |
| 574 size_t i = 0; | |
| 575 size_t j = 0; | |
| 576 size_t len = s.length (); | |
| 577 | |
| 578 retval.resize (len); | |
| 579 | |
| 580 while (j < len) | |
| 581 { | |
| 582 if (s[j] == '\\' && j+1 < len) | |
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583 { |
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584 switch (s[++j]) |
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585 { |
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586 case '0': |
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587 retval[i] = '\0'; |
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588 break; |
| 3893 | 589 |
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590 case 'a': |
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591 retval[i] = '\a'; |
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592 break; |
| 3103 | 593 |
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594 case 'b': // backspace |
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595 retval[i] = '\b'; |
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596 break; |
| 3103 | 597 |
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598 case 'f': // formfeed |
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599 retval[i] = '\f'; |
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600 break; |
| 3103 | 601 |
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602 case 'n': // newline |
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603 retval[i] = '\n'; |
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604 break; |
| 3103 | 605 |
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606 case 'r': // carriage return |
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607 retval[i] = '\r'; |
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608 break; |
| 3103 | 609 |
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610 case 't': // horizontal tab |
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611 retval[i] = '\t'; |
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612 break; |
| 3103 | 613 |
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614 case 'v': // vertical tab |
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615 retval[i] = '\v'; |
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616 break; |
| 3103 | 617 |
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618 case '\\': // backslash |
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619 retval[i] = '\\'; |
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620 break; |
| 3103 | 621 |
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622 case '\'': // quote |
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623 retval[i] = '\''; |
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624 break; |
| 3103 | 625 |
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626 case '"': // double quote |
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627 retval[i] = '"'; |
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628 break; |
| 3103 | 629 |
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630 default: |
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631 warning ("unrecognized escape sequence `\\%c' --\ |
| 3103 | 632 converting to `%c'", s[j], s[j]); |
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633 retval[i] = s[j]; |
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634 break; |
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635 } |
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636 } |
| 3103 | 637 else |
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638 { |
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639 retval[i] = s[j]; |
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640 } |
| 3103 | 641 |
| 642 i++; | |
| 643 j++; | |
| 644 } | |
| 645 | |
| 3105 | 646 retval.resize (i); |
| 3103 | 647 |
| 648 return retval; | |
| 649 } | |
| 650 | |
| 651 DEFUN (do_string_escapes, args, , | |
| 3446 | 652 "-*- texinfo -*-\n\ |
| 653 @deftypefn {Built-in Function} {} do_string_escapes (@var{string})\n\ | |
| 654 Convert special characters in @var{string} to their escaped forms.\n\ | |
| 655 @end deftypefn") | |
| 3103 | 656 { |
| 657 octave_value retval; | |
| 658 | |
| 659 int nargin = args.length (); | |
| 660 | |
| 661 if (nargin == 1) | |
| 662 { | |
| 663 if (args(0).is_string ()) | |
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664 retval = do_string_escapes (args(0).string_value ()); |
| 3103 | 665 else |
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666 error ("do_string_escapes: STRING argument must be of type string"); |
| 3103 | 667 } |
| 668 else | |
| 5823 | 669 print_usage (); |
| 3103 | 670 |
| 671 return retval; | |
| 672 } | |
| 673 | |
| 13094 | 674 /* |
| 675 %!error do_string_escapes (); | |
| 676 %!error do_string_escapes ("foo", "bar"); | |
| 677 | |
| 678 %!assert (do_string_escapes ('foo\nbar'), "foo\nbar"); | |
| 679 %!assert (do_string_escapes ("foo\\nbar"), "foo\nbar"); | |
| 680 %!assert (do_string_escapes ("foo\\nbar"), ["foo", char(10), "bar"]); | |
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681 %!assert ("foo\nbar", ["foo", char(10), "bar"]); |
| 13094 | 682 |
| 683 %!assert (do_string_escapes ('\a\b\f\n\r\t\v'), "\a\b\f\n\r\t\v"); | |
| 684 %!assert (do_string_escapes ("\\a\\b\\f\\n\\r\\t\\v"), "\a\b\f\n\r\t\v"); | |
| 685 %!assert (do_string_escapes ("\\a\\b\\f\\n\\r\\t\\v"), | |
| 686 %! char ([7, 8, 12, 10, 13, 9, 11])); | |
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687 %!assert ("\a\b\f\n\r\t\v", char ([7, 8, 12, 10, 13, 9, 11])); |
| 13094 | 688 */ |
| 689 | |
| 1755 | 690 const char * |
| 801 | 691 undo_string_escape (char c) |
| 692 { | |
| 693 if (! c) | |
| 1755 | 694 return ""; |
| 801 | 695 |
| 696 switch (c) | |
| 697 { | |
| 3893 | 698 case '\0': |
| 699 return "\\0"; | |
| 700 | |
| 801 | 701 case '\a': |
| 702 return "\\a"; | |
| 703 | |
| 704 case '\b': // backspace | |
| 705 return "\\b"; | |
| 706 | |
| 707 case '\f': // formfeed | |
| 708 return "\\f"; | |
| 709 | |
| 710 case '\n': // newline | |
| 711 return "\\n"; | |
| 712 | |
| 713 case '\r': // carriage return | |
| 714 return "\\r"; | |
| 715 | |
| 716 case '\t': // horizontal tab | |
| 717 return "\\t"; | |
| 718 | |
| 719 case '\v': // vertical tab | |
| 720 return "\\v"; | |
| 721 | |
| 722 case '\\': // backslash | |
| 723 return "\\\\"; | |
| 724 | |
| 725 case '"': // double quote | |
| 726 return "\\\""; | |
| 727 | |
| 728 default: | |
| 1755 | 729 { |
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730 static char retval[2]; |
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731 retval[0] = c; |
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732 retval[1] = '\0'; |
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733 return retval; |
| 1755 | 734 } |
| 801 | 735 } |
| 736 } | |
| 737 | |
| 3536 | 738 std::string |
| 3523 | 739 undo_string_escapes (const std::string& s) |
| 801 | 740 { |
| 3523 | 741 std::string retval; |
| 801 | 742 |
| 1755 | 743 for (size_t i = 0; i < s.length (); i++) |
| 744 retval.append (undo_string_escape (s[i])); | |
| 801 | 745 |
| 1755 | 746 return retval; |
| 801 | 747 } |
| 748 | |
| 1957 | 749 DEFUN (undo_string_escapes, args, , |
| 3361 | 750 "-*- texinfo -*-\n\ |
| 751 @deftypefn {Built-in Function} {} undo_string_escapes (@var{s})\n\ | |
|
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752 Convert special characters in strings back to their escaped forms. For\n\ |
| 3361 | 753 example, the expression\n\ |
| 754 \n\ | |
| 755 @example\n\ | |
| 756 bell = \"\\a\";\n\ | |
| 757 @end example\n\ | |
| 758 \n\ | |
| 759 @noindent\n\ | |
| 760 assigns the value of the alert character (control-g, ASCII code 7) to\n\ | |
| 761 the string variable @code{bell}. If this string is printed, the\n\ | |
| 762 system will ring the terminal bell (if it is possible). This is\n\ | |
| 763 normally the desired outcome. However, sometimes it is useful to be\n\ | |
| 764 able to print the original representation of the string, with the\n\ | |
| 765 special characters replaced by their escape sequences. For example,\n\ | |
| 766 \n\ | |
| 767 @example\n\ | |
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768 @group\n\ |
| 3361 | 769 octave:13> undo_string_escapes (bell)\n\ |
| 770 ans = \\a\n\ | |
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771 @end group\n\ |
| 3361 | 772 @end example\n\ |
| 773 \n\ | |
| 774 @noindent\n\ | |
| 775 replaces the unprintable alert character with its printable\n\ | |
| 776 representation.\n\ | |
| 777 @end deftypefn") | |
| 801 | 778 { |
| 2086 | 779 octave_value retval; |
| 801 | 780 |
| 781 int nargin = args.length (); | |
| 782 | |
| 3103 | 783 if (nargin == 1) |
| 784 { | |
| 785 if (args(0).is_string ()) | |
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786 retval = undo_string_escapes (args(0).string_value ()); |
| 3103 | 787 else |
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788 error ("undo_string_escapes: S argument must be a string"); |
| 3103 | 789 } |
| 801 | 790 else |
| 5823 | 791 print_usage (); |
| 801 | 792 |
| 793 return retval; | |
| 794 } | |
| 795 | |
| 13094 | 796 /* |
| 797 %!error undo_string_escapes (); | |
| 798 %!error undo_string_escapes ("foo", "bar"); | |
| 799 | |
| 800 %!assert (undo_string_escapes ("foo\nbar"), 'foo\nbar'); | |
| 801 %!assert (undo_string_escapes ("foo\nbar"), "foo\\nbar"); | |
| 802 %!assert (undo_string_escapes (["foo", char(10), "bar"]), "foo\\nbar"); | |
| 803 | |
| 804 %!assert (undo_string_escapes ("\a\b\f\n\r\t\v"), '\a\b\f\n\r\t\v'); | |
| 805 %!assert (undo_string_escapes ("\a\b\f\n\r\t\v"), "\\a\\b\\f\\n\\r\\t\\v"); | |
| 806 %!assert (undo_string_escapes (char ([7, 8, 12, 10, 13, 9, 11])), | |
| 807 %! "\\a\\b\\f\\n\\r\\t\\v"); | |
| 808 */ | |
| 809 | |
| 8229 | 810 DEFUN (is_absolute_filename, args, , |
| 811 "-*- texinfo -*-\n\ | |
| 812 @deftypefn {Built-in Function} {} is_absolute_filename (@var{file})\n\ | |
| 813 Return true if @var{file} is an absolute filename.\n\ | |
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814 @seealso{is_rooted_relative_filename, make_absolute_filename, isdir}\n\ |
| 8229 | 815 @end deftypefn") |
| 816 { | |
| 817 octave_value retval = false; | |
| 818 | |
| 819 if (args.length () == 1) | |
| 820 retval = (args(0).is_string () | |
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821 && octave_env::absolute_pathname (args(0).string_value ())); |
| 8229 | 822 else |
| 823 print_usage (); | |
| 824 | |
| 825 return retval; | |
| 826 } | |
| 827 | |
| 13094 | 828 /* |
| 829 %!error is_absolute_filename (); | |
| 830 %!error is_absolute_filename ("foo", "bar"); | |
| 831 | |
| 832 FIXME -- we need system-dependent tests here. | |
| 833 */ | |
| 834 | |
| 8229 | 835 DEFUN (is_rooted_relative_filename, args, , |
| 836 "-*- texinfo -*-\n\ | |
| 837 @deftypefn {Built-in Function} {} is_rooted_relative_filename (@var{file})\n\ | |
| 838 Return true if @var{file} is a rooted-relative filename.\n\ | |
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839 @seealso{is_absolute_filename, make_absolute_filename, isdir}\n\ |
| 8229 | 840 @end deftypefn") |
| 841 { | |
| 842 octave_value retval = false; | |
| 843 | |
| 844 if (args.length () == 1) | |
| 845 retval = (args(0).is_string () | |
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846 && octave_env::rooted_relative_pathname (args(0).string_value ())); |
| 8229 | 847 else |
| 848 print_usage (); | |
| 849 | |
| 850 return retval; | |
| 851 } | |
| 852 | |
| 13094 | 853 /* |
| 854 %!error is_rooted_relative_filename (); | |
| 855 %!error is_rooted_relative_filename ("foo", "bar"); | |
| 856 | |
| 857 FIXME -- we need system-dependent tests here. | |
| 858 */ | |
| 859 | |
| 8229 | 860 DEFUN (make_absolute_filename, args, , |
| 861 "-*- texinfo -*-\n\ | |
| 862 @deftypefn {Built-in Function} {} make_absolute_filename (@var{file})\n\ | |
| 863 Return the full name of @var{file}, relative to the current directory.\n\ | |
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864 @seealso{is_absolute_filename, is_rooted_relative_filename, isdir}\n\ |
| 8229 | 865 @end deftypefn") |
| 866 { | |
| 867 octave_value retval = std::string (); | |
| 868 | |
| 869 if (args.length () == 1) | |
| 870 { | |
| 871 std::string nm = args(0).string_value (); | |
| 872 | |
| 873 if (! error_state) | |
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874 retval = octave_env::make_absolute (nm); |
| 8229 | 875 else |
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876 error ("make_absolute_filename: FILE argument must be a file name"); |
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877 } |
| 8229 | 878 else |
| 879 print_usage (); | |
| 880 | |
| 881 return retval; | |
| 882 } | |
| 883 | |
| 13094 | 884 /* |
| 885 %!error make_absolute_filename (); | |
| 886 %!error make_absolute_filename ("foo", "bar"); | |
| 887 | |
| 888 FIXME -- we need system-dependent tests here. | |
| 889 */ | |
| 890 | |
| 8229 | 891 DEFUN (find_dir_in_path, args, , |
| 892 "-*- texinfo -*-\n\ | |
|
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893 @deftypefn {Built-in Function} {} find_dir_in_path (@var{dir})\n\ |
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894 @deftypefnx {Built-in Function} {} find_dir_in_path (@var{dir}, \"all\")\n\ |
| 8229 | 895 Return the full name of the path element matching @var{dir}. The\n\ |
| 896 match is performed at the end of each path element. For example, if\n\ | |
| 897 @var{dir} is @code{\"foo/bar\"}, it matches the path element\n\ | |
| 898 @code{\"/some/dir/foo/bar\"}, but not @code{\"/some/dir/foo/bar/baz\"}\n\ | |
| 8715 | 899 or @code{\"/some/dir/allfoo/bar\"}.\n\ |
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900 \n\ |
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901 The second argument is optional. If it is supplied, return a cell array\n\ |
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902 containing all name matches rather than just the first.\n\ |
| 8229 | 903 @end deftypefn") |
| 904 { | |
| 905 octave_value retval = std::string (); | |
| 906 | |
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907 int nargin = args.length (); |
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908 |
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909 std::string dir; |
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910 |
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|
911 if (nargin == 1 || nargin == 2) |
| 8229 | 912 { |
|
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|
913 dir = args(0).string_value (); |
| 8229 | 914 |
| 915 if (! error_state) | |
|
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916 { |
|
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917 if (nargin == 1) |
|
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918 retval = load_path::find_dir (dir); |
|
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919 else if (nargin == 2) |
|
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920 retval = Cell (load_path::find_matching_dirs (dir)); |
|
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921 } |
| 8229 | 922 else |
|
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|
923 error ("find_dir_in_path: DIR must be a directory name"); |
| 8229 | 924 } |
| 925 else | |
| 926 print_usage (); | |
| 927 | |
| 928 return retval; | |
| 929 } | |
| 930 | |
| 13094 | 931 /* |
| 932 %!error find_dir_in_path (); | |
| 933 %!error find_dir_in_path ("foo", "bar", 1); | |
| 934 | |
| 935 FIXME -- need to create tests using current path, pathsep, and dirsep. | |
| 936 */ | |
| 937 | |
| 5465 | 938 DEFUNX ("errno", Ferrno, args, , |
| 3716 | 939 "-*- texinfo -*-\n\ |
| 10840 | 940 @deftypefn {Built-in Function} {@var{err} =} errno ()\n\ |
| 5465 | 941 @deftypefnx {Built-in Function} {@var{err} =} errno (@var{val})\n\ |
| 942 @deftypefnx {Built-in Function} {@var{err} =} errno (@var{name})\n\ | |
| 943 Return the current value of the system-dependent variable errno,\n\ | |
| 944 set its value to @var{val} and return the previous value, or return\n\ | |
| 945 the named error code given @var{name} as a character string, or -1\n\ | |
| 946 if @var{name} is not found.\n\ | |
| 3716 | 947 @end deftypefn") |
| 948 { | |
| 949 octave_value retval; | |
| 950 | |
| 5465 | 951 int nargin = args.length (); |
| 952 | |
| 953 if (nargin == 1) | |
| 954 { | |
| 955 if (args(0).is_string ()) | |
|
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956 { |
|
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957 std::string nm = args(0).string_value (); |
| 5465 | 958 |
|
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959 if (! error_state) |
|
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960 retval = octave_errno::lookup (nm); |
|
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961 else |
|
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962 error ("errno: expecting character string argument"); |
|
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963 } |
| 5465 | 964 else |
|
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965 { |
|
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966 int val = args(0).int_value (); |
| 5465 | 967 |
|
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968 if (! error_state) |
|
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969 retval = octave_errno::set (val); |
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970 else |
|
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971 error ("errno: expecting integer argument"); |
|
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972 } |
| 5465 | 973 } |
| 974 else if (nargin == 0) | |
| 975 retval = octave_errno::get (); | |
| 3716 | 976 else |
| 5823 | 977 print_usage (); |
| 3716 | 978 |
| 979 return retval; | |
| 980 } | |
| 981 | |
| 13094 | 982 /* |
| 983 %!error errno ("foo", 1); | |
| 984 | |
| 985 %!assert (isnumeric (errno ())); | |
| 986 | |
| 987 %!test | |
| 988 %! lst = errno_list (); | |
| 989 %! fns = fieldnames (lst); | |
| 990 %! oldval = errno (fns{1}); | |
| 991 %! assert (isnumeric (oldval)); | |
| 992 %! errno (oldval); | |
| 993 %! newval = errno (); | |
| 994 %! assert (oldval, newval); | |
| 995 */ | |
| 996 | |
| 5465 | 997 DEFUN (errno_list, args, , |
| 998 "-*- texinfo -*-\n\ | |
| 999 @deftypefn {Built-in Function} {} errno_list ()\n\ | |
| 1000 Return a structure containing the system-dependent errno values.\n\ | |
| 1001 @end deftypefn") | |
| 1002 { | |
| 1003 octave_value retval; | |
| 1004 | |
| 1005 if (args.length () == 0) | |
| 1006 retval = octave_errno::list (); | |
| 1007 else | |
| 5823 | 1008 print_usage (); |
| 5465 | 1009 |
| 1010 return retval; | |
| 1011 } | |
| 3716 | 1012 |
| 13094 | 1013 /* |
| 1014 %!error errno_list ("foo"); | |
| 1015 | |
| 1016 %!assert (isstruct (errno_list ())); | |
| 1017 */ | |
| 1018 | |
| 2285 | 1019 static void |
| 5275 | 1020 check_dimensions (octave_idx_type& nr, octave_idx_type& nc, const char *warnfor) |
| 3354 | 1021 { |
| 1022 if (nr < 0 || nc < 0) | |
| 1023 { | |
| 5781 | 1024 warning_with_id ("Octave:neg-dim-as-zero", |
|
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1025 "%s: converting negative dimension to zero", warnfor); |
| 3354 | 1026 |
| 4457 | 1027 nr = (nr < 0) ? 0 : nr; |
| 1028 nc = (nc < 0) ? 0 : nc; | |
| 3354 | 1029 } |
| 1030 } | |
| 1031 | |
| 1032 void | |
| 4513 | 1033 check_dimensions (dim_vector& dim, const char *warnfor) |
| 4481 | 1034 { |
| 1035 bool neg = false; | |
| 1036 | |
| 1037 for (int i = 0; i < dim.length (); i++) | |
| 1038 { | |
| 1039 if (dim(i) < 0) | |
| 1040 { | |
| 1041 dim(i) = 0; | |
| 1042 neg = true; | |
| 1043 } | |
| 1044 } | |
| 1045 | |
| 5781 | 1046 if (neg) |
| 1047 warning_with_id ("Octave:neg-dim-as-zero", | |
|
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1048 "%s: converting negative dimension to zero", warnfor); |
| 4481 | 1049 } |
| 1050 | |
| 1051 | |
| 1052 void | |
| 1053 get_dimensions (const octave_value& a, const char *warn_for, | |
| 4513 | 1054 dim_vector& dim) |
| 4481 | 1055 { |
| 1056 if (a.is_scalar_type ()) | |
| 1057 { | |
| 1058 dim.resize (2); | |
| 4732 | 1059 dim(0) = a.int_value (); |
| 4481 | 1060 dim(1) = dim(0); |
| 1061 } | |
| 1062 else | |
| 1063 { | |
| 5275 | 1064 octave_idx_type nr = a.rows (); |
| 1065 octave_idx_type nc = a.columns (); | |
| 4481 | 1066 |
| 1067 if (nr == 1 || nc == 1) | |
| 1068 { | |
| 1069 Array<double> v = a.vector_value (); | |
| 1070 | |
| 1071 if (error_state) | |
| 1072 return; | |
| 1073 | |
| 5275 | 1074 octave_idx_type n = v.length (); |
| 4481 | 1075 dim.resize (n); |
| 5275 | 1076 for (octave_idx_type i = 0; i < n; i++) |
| 4783 | 1077 dim(i) = static_cast<int> (fix (v(i))); |
| 4481 | 1078 } |
| 1079 else | |
| 5257 | 1080 error ("%s (A): use %s (size (A)) instead", warn_for, warn_for); |
| 4481 | 1081 } |
| 1082 | |
| 5258 | 1083 if (! error_state) |
| 1084 check_dimensions (dim, warn_for); // May set error_state. | |
| 4481 | 1085 } |
| 1086 | |
| 1087 | |
| 1088 void | |
| 3354 | 1089 get_dimensions (const octave_value& a, const char *warn_for, |
|
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1090 octave_idx_type& nr, octave_idx_type& nc) |
| 3354 | 1091 { |
| 1092 if (a.is_scalar_type ()) | |
| 1093 { | |
| 4732 | 1094 nr = nc = a.int_value (); |
| 3354 | 1095 } |
| 1096 else | |
| 1097 { | |
| 1098 nr = a.rows (); | |
| 1099 nc = a.columns (); | |
| 1100 | |
| 1101 if ((nr == 1 && nc == 2) || (nr == 2 && nc == 1)) | |
|
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1102 { |
|
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1103 Array<double> v = a.vector_value (); |
| 3354 | 1104 |
|
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1105 if (error_state) |
|
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1106 return; |
| 3354 | 1107 |
|
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1108 nr = static_cast<octave_idx_type> (fix (v (0))); |
|
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1109 nc = static_cast<octave_idx_type> (fix (v (1))); |
|
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1110 } |
| 3354 | 1111 else |
|
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|
1112 error ("%s (A): use %s (size (A)) instead", warn_for, warn_for); |
| 3354 | 1113 } |
| 1114 | |
| 5258 | 1115 if (! error_state) |
| 1116 check_dimensions (nr, nc, warn_for); // May set error_state. | |
| 3354 | 1117 } |
| 1118 | |
| 1119 void | |
| 1120 get_dimensions (const octave_value& a, const octave_value& b, | |
|
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1121 const char *warn_for, octave_idx_type& nr, octave_idx_type& nc) |
| 3354 | 1122 { |
| 4732 | 1123 nr = a.is_empty () ? 0 : a.int_value (); |
| 1124 nc = b.is_empty () ? 0 : b.int_value (); | |
| 3354 | 1125 |
| 1126 if (error_state) | |
| 1127 error ("%s: expecting two scalar arguments", warn_for); | |
| 1128 else | |
| 1129 check_dimensions (nr, nc, warn_for); // May set error_state. | |
| 1130 } | |
| 1131 | |
|
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|
1132 octave_idx_type |
|
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1133 dims_to_numel (const dim_vector& dims, const octave_value_list& idx) |
|
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|
1134 { |
|
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|
1135 octave_idx_type retval; |
|
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1136 |
|
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1137 octave_idx_type len = idx.length (); |
|
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1138 |
|
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1139 if (len == 0) |
|
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1140 retval = dims.numel (); |
|
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1141 else |
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1142 { |
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1143 const dim_vector dv = dims.redim (len); |
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1144 retval = 1; |
|
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1145 for (octave_idx_type i = 0; i < len; i++) |
|
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1146 { |
|
9842
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1147 octave_value idxi = idx(i); |
|
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1148 if (idxi.is_magic_colon ()) |
|
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1149 retval *= dv(i); |
|
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1150 else if (idxi.is_numeric_type ()) |
|
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1151 retval *= idxi.numel (); |
|
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1152 else |
|
9842
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1153 { |
|
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1154 idx_vector jdx = idxi.index_vector (); |
|
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1155 if (error_state) |
|
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1156 break; |
|
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1157 retval *= jdx.length (dv(i)); |
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1158 } |
|
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1159 } |
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1160 } |
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1161 |
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1162 return retval; |
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1163 } |
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1164 |
| 4478 | 1165 Matrix |
| 5275 | 1166 identity_matrix (octave_idx_type nr, octave_idx_type nc) |
| 4478 | 1167 { |
| 1168 Matrix m (nr, nc, 0.0); | |
| 1169 | |
| 1170 if (nr > 0 && nc > 0) | |
| 1171 { | |
| 5275 | 1172 octave_idx_type n = std::min (nr, nc); |
| 4478 | 1173 |
| 5275 | 1174 for (octave_idx_type i = 0; i < n; i++) |
|
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1175 m (i, i) = 1.0; |
| 4478 | 1176 } |
| 1177 | |
| 1178 return m; | |
| 1179 } | |
| 1180 | |
|
7789
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|
1181 FloatMatrix |
|
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1182 float_identity_matrix (octave_idx_type nr, octave_idx_type nc) |
|
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1183 { |
|
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1184 FloatMatrix m (nr, nc, 0.0); |
|
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|
1185 |
|
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|
1186 if (nr > 0 && nc > 0) |
|
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1187 { |
|
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|
1188 octave_idx_type n = std::min (nr, nc); |
|
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First attempt at single precision tyeps
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|
1189 |
|
82be108cc558
First attempt at single precision tyeps
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|
1190 for (octave_idx_type i = 0; i < n; i++) |
|
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untabify src C++ source files
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|
1191 m (i, i) = 1.0; |
|
7789
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
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diff
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|
1192 } |
|
82be108cc558
First attempt at single precision tyeps
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|
1193 |
|
82be108cc558
First attempt at single precision tyeps
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|
1194 return m; |
|
82be108cc558
First attempt at single precision tyeps
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|
1195 } |
|
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|
1196 |
|
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fix extern decls in .cc files
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|
1197 int |
| 3622 | 1198 octave_format (std::ostream& os, const char *fmt, ...) |
| 3620 | 1199 { |
| 1200 int retval = -1; | |
| 1201 | |
| 1202 va_list args; | |
| 1203 va_start (args, fmt); | |
| 1204 | |
| 1205 retval = octave_vformat (os, fmt, args); | |
| 1206 | |
| 1207 va_end (args); | |
| 1208 | |
| 1209 return retval; | |
| 1210 } | |
| 1211 | |
|
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fix extern decls in .cc files
John W. Eaton <jwe@octave.org>
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diff
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|
1212 int |
| 3622 | 1213 octave_vformat (std::ostream& os, const char *fmt, va_list args) |
| 3620 | 1214 { |
| 1215 int retval = -1; | |
| 1216 | |
| 3775 | 1217 #if defined (__GNUG__) && !CXX_ISO_COMPLIANT_LIBRARY |
| 3620 | 1218 |
| 4135 | 1219 std::streambuf *sb = os.rdbuf (); |
| 1220 | |
| 1221 if (sb) | |
| 4302 | 1222 { |
| 1223 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; | |
| 1224 | |
| 1225 retval = sb->vform (fmt, args); | |
| 1226 | |
| 1227 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; | |
| 1228 } | |
| 3620 | 1229 |
| 1230 #else | |
| 1231 | |
| 1232 char *s = octave_vsnprintf (fmt, args); | |
| 1233 | |
| 1234 if (s) | |
| 1235 { | |
| 1236 os << s; | |
| 1237 | |
| 1238 retval = strlen (s); | |
| 1239 } | |
| 1240 | |
| 1241 #endif | |
| 1242 | |
| 1243 return retval; | |
| 1244 } | |
| 1245 | |
| 4302 | 1246 // We manage storage. User should not free it, and its contents are |
| 1247 // only valid until next call to vsnprintf. | |
| 1248 | |
| 1249 // Interrupts might happen if someone makes a call with something that | |
| 1250 // will require a very large buffer. If we are interrupted in that | |
| 1251 // case, we should make the buffer size smaller for the next call. | |
| 1252 | |
| 1253 #define BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE_FOR_VSNPRINTF \ | |
| 1254 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE_1; \ | |
| 1255 delete [] buf; \ | |
| 1256 buf = 0; \ | |
| 1257 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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|
1258 octave_rethrow_exception (); \ |
| 4302 | 1259 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE_2 |
| 1260 | |
| 4485 | 1261 #if defined __GNUC__ && defined __va_copy |
| 1262 #define SAVE_ARGS(saved_args, args) __va_copy (saved_args, args) | |
| 1263 #elif defined va_copy | |
| 1264 #define SAVE_ARGS(saved_args, args) va_copy (saved_args, args) | |
| 1265 #else | |
| 1266 #define SAVE_ARGS(saved_args, args) saved_args = args | |
| 1267 #endif | |
| 1268 | |
| 4302 | 1269 char * |
| 1270 octave_vsnprintf (const char *fmt, va_list args) | |
| 1271 { | |
| 1272 static const size_t initial_size = 100; | |
| 1273 | |
| 1274 static size_t size = initial_size; | |
| 1275 | |
| 1276 static char *buf = 0; | |
| 1277 | |
|
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eec74ee00b32
eliminate some GCC warnings
John W. Eaton <jwe@octave.org>
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diff
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|
1278 volatile int nchars = 0; |
| 4302 | 1279 |
| 1280 if (! buf) | |
| 1281 buf = new char [size]; | |
| 1282 | |
| 1283 if (! buf) | |
| 1284 return 0; | |
| 1285 | |
| 1286 while (1) | |
| 1287 { | |
| 4485 | 1288 va_list saved_args; |
| 1289 | |
| 1290 SAVE_ARGS (saved_args, args); | |
| 1291 | |
| 4302 | 1292 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE_FOR_VSNPRINTF; |
| 1293 | |
| 4485 | 1294 nchars = octave_raw_vsnprintf (buf, size, fmt, saved_args); |
| 1295 | |
| 1296 va_end (saved_args); | |
| 4302 | 1297 |
| 1298 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; | |
| 1299 | |
|
13113
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Fix warning about signed/unsigned comparison
Jordi Gutiérrez Hermoso <jordigh@octave.org>
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diff
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|
1300 // Cast to avoid signed/unsigned comparison is safe due to |
|
40f935b15a22
Fix warning about signed/unsigned comparison
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|
1301 // short-circuiting |
|
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Jordi Gutiérrez Hermoso <jordigh@octave.org>
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13094
diff
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|
1302 if (nchars > -1 && static_cast<size_t>(nchars) < size) |
|
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John W. Eaton <jwe@octave.org>
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diff
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|
1303 break; |
| 4302 | 1304 else |
|
10257
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John W. Eaton <jwe@octave.org>
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diff
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|
1305 { |
|
cd550069240e
assume vsnprintf from gnulib; use sstream instead of snprintf
John W. Eaton <jwe@octave.org>
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diff
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|
1306 delete [] buf; |
| 4302 | 1307 |
|
10257
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1308 size = nchars + 1;; |
|
cd550069240e
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John W. Eaton <jwe@octave.org>
parents:
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diff
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|
1309 |
|
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
1310 buf = new char [size]; |
| 4302 | 1311 |
|
10257
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
1312 if (! buf) |
|
cd550069240e
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1313 return 0; |
|
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
1314 } |
| 4302 | 1315 } |
| 1316 | |
| 1317 return buf; | |
| 1318 } | |
| 1319 | |
| 1320 char * | |
| 1321 octave_snprintf (const char *fmt, ...) | |
| 1322 { | |
| 1323 char *retval = 0; | |
| 1324 | |
| 1325 va_list args; | |
| 1326 va_start (args, fmt); | |
| 1327 | |
| 1328 retval = octave_vsnprintf (fmt, args); | |
| 1329 | |
| 1330 va_end (args); | |
| 1331 | |
| 1332 return retval; | |
| 1333 } | |
| 1334 | |
| 4086 | 1335 void |
| 1336 octave_sleep (double seconds) | |
| 1337 { | |
| 1338 if (seconds > 0) | |
| 1339 { | |
| 1340 double t; | |
| 1341 | |
| 4093 | 1342 unsigned int usec |
|
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
1343 = static_cast<unsigned int> (modf (seconds, &t) * 1000000); |
| 4086 | 1344 |
| 4093 | 1345 unsigned int sec |
|
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John W. Eaton <jwe@octave.org>
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|
1346 = (t > UINT_MAX) ? UINT_MAX : static_cast<unsigned int> (t); |
| 4086 | 1347 |
| 5770 | 1348 // Versions of these functions that accept unsigned int args are |
| 1349 // defined in cutils.c. | |
| 4086 | 1350 octave_sleep (sec); |
| 1351 octave_usleep (usec); | |
|
10070
897e62651c0a
correctly handle interrupts in pause()
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
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|
1352 |
|
10142
829e69ec3110
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Jaroslav Hajek <highegg@gmail.com>
parents:
10086
diff
changeset
|
1353 octave_quit (); |
| 4086 | 1354 } |
| 1355 } | |
| 1356 | |
|
9487
2894af292e69
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|
1357 DEFUN (isindex, args, , |
|
2894af292e69
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|
1358 "-*- texinfo -*-\n\ |
|
11431
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Improve docstrings for all isXXX functions.
Rik <octave@nomad.inbox5.com>
parents:
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diff
changeset
|
1359 @deftypefn {Built-in Function} {} isindex (@var{ind})\n\ |
|
0d9640d755b1
Improve docstrings for all isXXX functions.
Rik <octave@nomad.inbox5.com>
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diff
changeset
|
1360 @deftypefnx {Built-in Function} {} isindex (@var{ind}, @var{n})\n\ |
|
0d9640d755b1
Improve docstrings for all isXXX functions.
Rik <octave@nomad.inbox5.com>
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diff
changeset
|
1361 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
|
1362 either positive integers (although possibly of real data type), or logical\n\ |
|
11431
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Rik <octave@nomad.inbox5.com>
parents:
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diff
changeset
|
1363 arrays. If present, @var{n} specifies the maximum extent of the dimension\n\ |
|
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diff
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|
1364 to be indexed. When possible the internal result is cached so that\n\ |
|
0d9640d755b1
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Rik <octave@nomad.inbox5.com>
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diff
changeset
|
1365 subsequent indexing using @var{ind} will not perform the check again.\n\ |
|
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diff
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|
1366 @end deftypefn") |
|
2894af292e69
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|
1367 { |
|
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|
1368 octave_value retval; |
|
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|
1369 int nargin = args.length (); |
|
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|
1370 octave_idx_type n = 0; |
|
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diff
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|
1371 |
|
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|
1372 if (nargin == 2) |
|
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|
1373 n = args(1).idx_type_value (); |
|
2894af292e69
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|
1374 else if (nargin != 1) |
|
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diff
changeset
|
1375 print_usage (); |
|
2894af292e69
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diff
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|
1376 |
|
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|
1377 if (! error_state) |
|
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|
1378 { |
|
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make unwind_protect frames local
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parents:
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diff
changeset
|
1379 unwind_protect frame; |
|
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diff
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|
1380 |
|
10613
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10605
diff
changeset
|
1381 frame.protect_var (Vallow_noninteger_range_as_index); |
|
e103fb2182ce
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diff
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|
1382 Vallow_noninteger_range_as_index = false; |
|
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|
1383 |
|
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|
1384 frame.protect_var (error_state); |
|
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|
1385 |
|
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|
1386 frame.protect_var (discard_error_messages); |
|
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|
1387 discard_error_messages = true; |
|
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1388 |
|
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|
1389 try |
|
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|
1390 { |
|
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|
1391 idx_vector idx = args(0).index_vector (); |
|
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1392 if (! error_state) |
|
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|
1393 { |
|
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|
1394 if (nargin == 2) |
|
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1395 retval = idx.extent (n) <= n; |
|
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|
1396 else |
|
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|
1397 retval = true; |
|
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|
1398 } |
|
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|
1399 else |
|
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|
1400 retval = false; |
|
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|
1401 } |
|
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|
1402 catch (octave_execution_exception) |
|
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|
1403 { |
|
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|
1404 retval = false; |
|
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|
1405 } |
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|
1406 } |
|
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1407 |
|
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|
1408 return retval; |
|
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|
1409 } |
|
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|
1410 |
| 13094 | 1411 /* |
| 1412 %!error isindex (); | |
| 1413 | |
| 1414 %!assert (isindex ([1, 2, 3])); | |
| 1415 %!assert (isindex (1:3)); | |
| 1416 %!assert (isindex ([1, 2, -3]), false); | |
| 1417 */ | |
| 1418 | |
|
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1419 octave_value_list |
|
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1420 do_simple_cellfun (octave_value_list (*fun) (const octave_value_list&, int), |
|
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|
1421 const char *fun_name, const octave_value_list& args, |
|
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1422 int nargout) |
|
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1423 { |
|
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|
1424 octave_value_list new_args = args, retval; |
|
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|
1425 int nargin = args.length (); |
|
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changeset
|
1426 OCTAVE_LOCAL_BUFFER (bool, iscell, nargin); |
|
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|
1427 OCTAVE_LOCAL_BUFFER (Cell, cells, nargin); |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
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|
1428 OCTAVE_LOCAL_BUFFER (Cell, rcells, nargout); |
|
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parents:
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diff
changeset
|
1429 |
|
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allow more cells in strfind/strrep + supply a general mechanism
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parents:
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diff
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|
1430 const Cell *ccells = cells; |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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|
1431 |
|
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
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|
1432 octave_idx_type numel = 1; |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1433 dim_vector dims (1, 1); |
|
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1434 |
|
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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
|
1435 for (int i = 0; i < nargin; i++) |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1436 { |
|
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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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|
1437 octave_value arg = new_args(i); |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1438 iscell[i] = arg.is_cell (); |
|
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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
|
1439 if (iscell[i]) |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1440 { |
|
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Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
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|
1441 cells[i] = arg.cell_value (); |
|
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Jaroslav Hajek <highegg@gmail.com>
parents:
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|
1442 octave_idx_type n = ccells[i].numel (); |
|
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1443 if (n == 1) |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11575
diff
changeset
|
1444 { |
|
10086
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1445 iscell[i] = false; |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1446 new_args(i) = ccells[i](0); |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1447 } |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1448 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
changeset
|
1449 { |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
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|
1450 numel = n; |
|
76df75b10c80
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1451 dims = ccells[i].dims (); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11575
diff
changeset
|
1452 } |
|
10086
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1453 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
changeset
|
1454 { |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1455 error ("%s: cell arguments must have matching sizes", fun_name); |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1456 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
changeset
|
1457 } |
|
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parents:
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diff
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|
1458 } |
|
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parents:
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diff
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|
1459 } |
|
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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
|
1460 |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1461 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
|
1462 { |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1463 for (int i = 0; i < nargout; i++) |
|
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1464 rcells[i].clear (dims); |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1465 |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1466 for (octave_idx_type j = 0; j < numel; j++) |
|
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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
|
1467 { |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1468 for (int i = 0; i < nargin; i++) |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1469 if (iscell[i]) |
|
76df75b10c80
allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1470 new_args(i) = ccells[i](j); |
|
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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
|
1471 |
|
10142
829e69ec3110
make OCTAVE_QUIT a function
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1472 octave_quit (); |
|
10086
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parents:
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changeset
|
1473 |
|
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1474 const octave_value_list tmp = fun (new_args, nargout); |
|
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1475 |
|
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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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|
1476 if (tmp.length () < nargout) |
|
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1477 { |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
10070
diff
changeset
|
1478 error ("%s: do_simple_cellfun: internal error", fun_name); |
|
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allow more cells in strfind/strrep + supply a general mechanism
Jaroslav Hajek <highegg@gmail.com>
parents:
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|
1479 break; |
|
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allow more cells in strfind/strrep + supply a general mechanism
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changeset
|
1480 } |
|
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allow more cells in strfind/strrep + supply a general mechanism
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parents:
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changeset
|
1481 else |
|
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parents:
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changeset
|
1482 { |
|
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changeset
|
1483 for (int i = 0; i < nargout; i++) |
|
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changeset
|
1484 rcells[i](j) = tmp(i); |
|
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changeset
|
1485 } |
|
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changeset
|
1486 } |
|
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changeset
|
1487 } |
|
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changeset
|
1488 |
|
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diff
changeset
|
1489 if (! error_state) |
|
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changeset
|
1490 { |
|
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changeset
|
1491 retval.resize (nargout); |
|
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changeset
|
1492 for (int i = 0; i < nargout; i++) |
|
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changeset
|
1493 retval(i) = rcells[i]; |
|
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changeset
|
1494 } |
|
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changeset
|
1495 |
|
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changeset
|
1496 return retval; |
|
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changeset
|
1497 } |
|
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changeset
|
1498 |
|
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Jaroslav Hajek <highegg@gmail.com>
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changeset
|
1499 octave_value |
|
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1500 do_simple_cellfun (octave_value_list (*fun) (const octave_value_list&, int), |
|
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|
1501 const char *fun_name, const octave_value_list& args) |
|
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|
1502 { |
|
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|
1503 octave_value retval; |
|
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allow more cells in strfind/strrep + supply a general mechanism
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|
1504 const octave_value_list tmp = do_simple_cellfun (fun, fun_name, args, 1); |
|
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|
1505 if (tmp.length () > 0) |
|
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|
1506 retval = tmp(0); |
|
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changeset
|
1507 |
|
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changeset
|
1508 return retval; |
|
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|
1509 } |