Mercurial > hg > octave-nkf
annotate libinterp/corefcn/utils.cc @ 19007:9ac2357f19bc
doc: Replace "non-zero" with "nonzero" to match existing usage.
Replace all occurrences in both documentation and code comments.
* doc/interpreter/contrib.txi, doc/interpreter/diagperm.txi,
doc/interpreter/external.txi, doc/interpreter/sparse.txi,
doc/interpreter/stmt.txi, doc/interpreter/testfun.txi, doc/refcard/refcard.tex,
examples/mysparse.c, libinterp/corefcn/balance.cc,
libinterp/corefcn/cellfun.cc, libinterp/corefcn/data.cc,
libinterp/corefcn/filter.cc, libinterp/corefcn/find.cc,
libinterp/corefcn/kron.cc, libinterp/corefcn/ls-mat5.cc,
libinterp/corefcn/luinc.cc, libinterp/corefcn/mappers.cc,
libinterp/corefcn/oct-fstrm.cc, libinterp/corefcn/oct-fstrm.h,
libinterp/corefcn/oct-iostrm.cc, libinterp/corefcn/oct-iostrm.h,
libinterp/corefcn/oct-stdstrm.h, libinterp/corefcn/oct-strstrm.h,
libinterp/corefcn/spparms.cc, libinterp/corefcn/toplev.cc,
libinterp/corefcn/utils.cc, libinterp/dldfcn/symrcm.cc,
libinterp/octave-value/ov-bool-mat.cc, liboctave/array/CSparse.cc,
liboctave/array/Sparse.cc, liboctave/array/Sparse.h,
liboctave/array/dSparse.cc, liboctave/numeric/randmtzig.c,
liboctave/operators/Sparse-op-defs.h, scripts/help/get_first_help_sentence.m,
scripts/miscellaneous/edit.m, scripts/plot/draw/pie.m,
scripts/plot/draw/pie3.m, scripts/sparse/colperm.m, scripts/sparse/nonzeros.m,
scripts/sparse/spdiags.m, scripts/sparse/spfun.m, scripts/sparse/spones.m,
scripts/sparse/sprand.m, scripts/sparse/sprandn.m, scripts/sparse/sprandsym.m,
scripts/sparse/spstats.m, scripts/sparse/svds.m,
scripts/special-matrix/gallery.m, scripts/statistics/base/moment.m,
scripts/statistics/tests/cor_test.m:
Replace "non-zero" with "nonzero" to match existing usage.
| author | Rik <rik@octave.org> |
|---|---|
| date | Sun, 08 Jun 2014 17:59:59 -0700 |
| parents | c7b68a11074b |
| children | 9ef10e6a5987 |
| rev | line source |
|---|---|
| 1 | 1 /* |
| 2 | |
|
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3 Copyright (C) 1993-2013 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> |
| 1346 | 29 #include <cstring> |
| 1343 | 30 |
| 3503 | 31 #include <fstream> |
| 32 #include <iostream> | |
|
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33 #include <limits> |
| 1728 | 34 #include <string> |
| 35 | |
| 1 | 36 #include <sys/types.h> |
| 37 #include <unistd.h> | |
| 367 | 38 |
|
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39 #include "vasnprintf.h" |
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40 |
| 4302 | 41 #include "quit.h" |
| 42 | |
| 3040 | 43 #include "dir-ops.h" |
| 44 #include "file-ops.h" | |
| 2926 | 45 #include "file-stat.h" |
| 4732 | 46 #include "lo-mappers.h" |
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47 #include "lo-utils.h" |
| 1651 | 48 #include "oct-cmplx.h" |
| 2926 | 49 #include "oct-env.h" |
| 3040 | 50 #include "pathsearch.h" |
| 1755 | 51 #include "str-vec.h" |
| 1651 | 52 |
| 4216 | 53 #include "Cell.h" |
| 2492 | 54 #include <defaults.h> |
| 1352 | 55 #include "defun.h" |
| 56 #include "dirfns.h" | |
| 57 #include "error.h" | |
| 58 #include "gripes.h" | |
| 59 #include "input.h" | |
|
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60 #include "lex.h" |
| 5832 | 61 #include "load-path.h" |
| 5465 | 62 #include "oct-errno.h" |
| 1742 | 63 #include "oct-hist.h" |
| 1750 | 64 #include "oct-obj.h" |
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65 #include "ov-range.h" |
| 1352 | 66 #include "pager.h" |
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67 #include "parse.h" |
| 1690 | 68 #include "sysdep.h" |
| 1750 | 69 #include "toplev.h" |
| 1 | 70 #include "unwind-prot.h" |
| 1352 | 71 #include "utils.h" |
| 72 #include "variables.h" | |
| 1 | 73 |
| 4143 | 74 // Return TRUE if S is a valid identifier. |
| 75 | |
| 76 bool | |
| 77 valid_identifier (const char *s) | |
| 78 { | |
| 5290 | 79 if (! s || ! (isalpha (*s) || *s == '_' || *s == '$')) |
|
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80 return false; |
| 4143 | 81 |
| 82 while (*++s != '\0') | |
| 5290 | 83 if (! (isalnum (*s) || *s == '_' || *s == '$')) |
| 4143 | 84 return false; |
| 85 | |
| 86 return true; | |
| 87 } | |
| 88 | |
| 89 bool | |
| 90 valid_identifier (const std::string& s) | |
| 91 { | |
| 92 return valid_identifier (s.c_str ()); | |
| 93 } | |
| 94 | |
|
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95 DEFUN (isvarname, args, , |
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96 "-*- texinfo -*-\n\ |
| 5040 | 97 @deftypefn {Built-in Function} {} isvarname (@var{name})\n\ |
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98 Return true if @var{name} is a valid variable name.\n\ |
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99 @seealso{iskeyword, exist, who}\n\ |
| 4264 | 100 @end deftypefn") |
| 101 { | |
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102 octave_value retval = false; |
| 4264 | 103 |
|
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104 int nargin = args.length (); |
| 4264 | 105 |
|
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106 if (nargin != 1) |
| 5823 | 107 print_usage (); |
|
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108 else if (args(0).is_string ()) |
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109 { |
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110 std::string varname = args(0).string_value (); |
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111 retval = valid_identifier (varname) && ! is_keyword (varname); |
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112 } |
| 4264 | 113 |
| 114 return retval; | |
| 115 } | |
| 116 | |
| 13094 | 117 /* |
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118 %!assert (isvarname ("foo"), true) |
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119 %!assert (isvarname ("_foo"), true) |
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120 %!assert (isvarname ("_1"), true) |
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121 %!assert (isvarname ("1foo"), false) |
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122 %!assert (isvarname (""), false) |
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123 %!assert (isvarname (12), false) |
| 13094 | 124 |
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125 %!error isvarname () |
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126 %!error isvarname ("foo", "bar"); |
| 13094 | 127 */ |
| 128 | |
| 6323 | 129 // Return TRUE if F and G are both names for the same file. |
| 130 | |
| 131 bool | |
| 132 same_file (const std::string& f, const std::string& g) | |
| 133 { | |
| 6598 | 134 return same_file_internal (f, g); |
| 6323 | 135 } |
| 136 | |
| 1 | 137 int |
| 3523 | 138 almost_match (const std::string& std, const std::string& s, int min_match_len, |
|
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139 int case_sens) |
| 1 | 140 { |
| 1755 | 141 int stdlen = std.length (); |
| 142 int slen = s.length (); | |
| 1 | 143 |
| 144 return (slen <= stdlen | |
|
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145 && slen >= min_match_len |
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146 && (case_sens |
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147 ? (strncmp (std.c_str (), s.c_str (), slen) == 0) |
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148 : (octave_strncasecmp (std.c_str (), s.c_str (), slen) == 0))); |
| 287 | 149 } |
| 150 | |
| 581 | 151 // Ugh. |
| 152 | |
| 287 | 153 int |
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154 keyword_almost_match (const char * const *std, int *min_len, |
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155 const std::string& s, |
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156 int min_toks_to_match, int max_toks) |
| 287 | 157 { |
| 158 int status = 0; | |
| 159 int tok_count = 0; | |
| 160 int toks_matched = 0; | |
| 161 | |
| 1755 | 162 if (s.empty () || max_toks < 1) |
| 287 | 163 return status; |
| 164 | |
| 1755 | 165 char *kw = strsave (s.c_str ()); |
| 287 | 166 |
| 167 char *t = kw; | |
| 168 while (*t != '\0') | |
| 169 { | |
| 170 if (*t == '\t') | |
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171 *t = ' '; |
| 287 | 172 t++; |
| 173 } | |
| 174 | |
| 175 char *beg = kw; | |
| 176 while (*beg == ' ') | |
| 177 beg++; | |
| 178 | |
| 179 if (*beg == '\0') | |
| 180 return status; | |
| 181 | |
| 182 | |
| 3072 | 183 const char **to_match = new const char * [max_toks + 1]; |
| 184 const char * const *s1 = std; | |
| 185 const char **s2 = to_match; | |
| 287 | 186 |
| 526 | 187 if (! s1 || ! s2) |
| 287 | 188 goto done; |
| 189 | |
| 190 s2[tok_count] = beg; | |
| 191 char *end; | |
| 526 | 192 while ((end = strchr (beg, ' ')) != 0) |
| 287 | 193 { |
| 194 *end = '\0'; | |
| 195 beg = end + 1; | |
| 196 | |
| 197 while (*beg == ' ') | |
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198 beg++; |
| 287 | 199 |
| 200 if (*beg == '\0') | |
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201 break; |
| 287 | 202 |
| 203 tok_count++; | |
| 204 if (tok_count >= max_toks) | |
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205 goto done; |
| 287 | 206 |
| 207 s2[tok_count] = beg; | |
| 208 } | |
| 526 | 209 s2[tok_count+1] = 0; |
| 287 | 210 |
| 211 s2 = to_match; | |
| 212 | |
| 213 for (;;) | |
| 214 { | |
| 215 if (! almost_match (*s1, *s2, min_len[toks_matched], 0)) | |
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216 goto done; |
| 287 | 217 |
| 218 toks_matched++; | |
| 219 | |
| 220 s1++; | |
| 221 s2++; | |
| 222 | |
| 223 if (! *s2) | |
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224 { |
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225 status = (toks_matched >= min_toks_to_match); |
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226 goto done; |
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227 } |
| 287 | 228 |
| 229 if (! *s1) | |
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230 goto done; |
| 287 | 231 } |
| 232 | |
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233 done: |
| 287 | 234 |
| 235 delete [] kw; | |
| 236 delete [] to_match; | |
| 237 | |
| 238 return status; | |
| 1 | 239 } |
| 240 | |
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241 // Return nonzero if either NR or NC is zero. Return -1 if this |
| 2234 | 242 // should be considered fatal; return 1 if this is ok. |
| 243 | |
| 244 int | |
| 5275 | 245 empty_arg (const char * /* name */, octave_idx_type nr, octave_idx_type nc) |
| 2234 | 246 { |
| 4478 | 247 return (nr == 0 || nc == 0); |
| 2234 | 248 } |
| 249 | |
| 581 | 250 // See if the given file is in the path. |
| 251 | |
| 3536 | 252 std::string |
| 4243 | 253 search_path_for_file (const std::string& path, const string_vector& names) |
| 686 | 254 { |
| 3174 | 255 dir_path p (path); |
| 686 | 256 |
| 10250 | 257 return octave_env::make_absolute (p.find_first_of (names)); |
| 686 | 258 } |
| 259 | |
| 4216 | 260 // Find all locations of the given file in the path. |
| 261 | |
| 262 string_vector | |
| 4243 | 263 search_path_for_all_files (const std::string& path, const string_vector& names) |
| 4216 | 264 { |
| 265 dir_path p (path); | |
| 266 | |
| 4243 | 267 string_vector sv = p.find_all_first_of (names); |
| 4216 | 268 |
| 6379 | 269 octave_idx_type len = sv.length (); |
| 4216 | 270 |
| 6379 | 271 for (octave_idx_type i = 0; i < len; i++) |
| 10250 | 272 sv[i] = octave_env::make_absolute (sv[i]); |
| 4216 | 273 |
| 274 return sv; | |
| 275 } | |
| 276 | |
| 277 static string_vector | |
| 278 make_absolute (const string_vector& sv) | |
| 279 { | |
| 6379 | 280 octave_idx_type len = sv.length (); |
| 281 | |
| 282 string_vector retval (len); | |
| 4216 | 283 |
| 6379 | 284 for (octave_idx_type i = 0; i < len; i++) |
| 10250 | 285 retval[i] = octave_env::make_absolute (sv[i]); |
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286 |
| 6379 | 287 return retval; |
| 4216 | 288 } |
| 289 | |
| 3195 | 290 DEFUN (file_in_loadpath, args, , |
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291 "-*- texinfo -*-\n\ |
| 10840 | 292 @deftypefn {Built-in Function} {} file_in_loadpath (@var{file})\n\ |
| 4216 | 293 @deftypefnx {Built-in Function} {} file_in_loadpath (@var{file}, \"all\")\n\ |
| 3195 | 294 \n\ |
| 5448 | 295 Return the absolute name of @var{file} if it can be found in\n\ |
| 5814 | 296 the list of directories specified by @code{path}.\n\ |
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297 If no file is found, return an empty character string.\n\ |
| 4216 | 298 \n\ |
| 5448 | 299 If the first argument is a cell array of strings, search each\n\ |
| 4243 | 300 directory of the loadpath for element of the cell array and return\n\ |
| 301 the first that matches.\n\ | |
| 302 \n\ | |
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303 If the second optional argument @qcode{\"all\"} is supplied, return\n\ |
| 4216 | 304 a cell array containing the list of all files that have the same\n\ |
| 305 name in the path. If no files are found, return an empty cell array.\n\ | |
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306 @seealso{file_in_path, dir_in_loadpath, path}\n\ |
| 5642 | 307 @end deftypefn") |
| 3195 | 308 { |
| 4216 | 309 octave_value retval; |
| 3195 | 310 |
| 4243 | 311 int nargin = args.length (); |
| 3195 | 312 |
| 4243 | 313 if (nargin == 1 || nargin == 2) |
| 4216 | 314 { |
| 4243 | 315 string_vector names = args(0).all_strings (); |
| 316 | |
| 317 if (! error_state && names.length () > 0) | |
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318 { |
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319 if (nargin == 1) |
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320 retval = |
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321 octave_env::make_absolute (load_path::find_first_of (names)); |
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322 else if (nargin == 2) |
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323 { |
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324 std::string opt = args(1).string_value (); |
| 4243 | 325 |
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326 if (! error_state && opt == "all") |
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327 retval = Cell (make_absolute |
| 10250 | 328 (load_path::find_all_first_of (names))); |
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329 else |
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330 error ("file_in_loadpath: invalid option"); |
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331 } |
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332 } |
| 4216 | 333 else |
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334 error ("file_in_loadpath: FILE argument must be a string"); |
| 4216 | 335 } |
| 3195 | 336 else |
| 5823 | 337 print_usage (); |
| 3195 | 338 |
| 339 return retval; | |
| 340 } | |
| 341 | |
| 13094 | 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, {}); | |
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355 |
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356 %!error file_in_loadpath () |
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357 %!error file_in_loadpath ("foo", "bar", 1) |
| 13094 | 358 */ |
| 359 | |
| 1957 | 360 DEFUN (file_in_path, args, , |
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361 "-*- texinfo -*-\n\ |
| 10840 | 362 @deftypefn {Built-in Function} {} file_in_path (@var{path}, @var{file})\n\ |
| 4216 | 363 @deftypefnx {Built-in Function} {} file_in_path (@var{path}, @var{file}, \"all\")\n\ |
| 5448 | 364 Return the absolute name of @var{file} if it can be found in\n\ |
| 3301 | 365 @var{path}. The value of @var{path} should be a colon-separated list of\n\ |
| 5814 | 366 directories in the format described for @code{path}. If no file\n\ |
| 10840 | 367 is found, return an empty character string. For example:\n\ |
| 3301 | 368 \n\ |
| 369 @example\n\ | |
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370 @group\n\ |
| 5456 | 371 file_in_path (EXEC_PATH, \"sh\")\n\ |
| 372 @result{} \"/bin/sh\"\n\ | |
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373 @end group\n\ |
| 3301 | 374 @end example\n\ |
| 4216 | 375 \n\ |
| 5448 | 376 If the second argument is a cell array of strings, search each\n\ |
| 4243 | 377 directory of the path for element of the cell array and return\n\ |
| 378 the first that matches.\n\ | |
| 379 \n\ | |
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380 If the third optional argument @qcode{\"all\"} is supplied, return\n\ |
| 4216 | 381 a cell array containing the list of all files that have the same\n\ |
| 382 name in the path. If no files are found, return an empty cell array.\n\ | |
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383 @seealso{file_in_loadpath, dir_in_loadpath, path}\n\ |
| 3301 | 384 @end deftypefn") |
| 686 | 385 { |
| 4216 | 386 octave_value retval; |
| 686 | 387 |
| 4243 | 388 int nargin = args.length (); |
| 1755 | 389 |
| 4243 | 390 if (nargin == 2 || nargin == 3) |
| 686 | 391 { |
| 4243 | 392 std::string path = args(0).string_value (); |
| 393 | |
| 394 if (! error_state) | |
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395 { |
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396 string_vector names = args(1).all_strings (); |
| 4243 | 397 |
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398 if (! error_state && names.length () > 0) |
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399 { |
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400 if (nargin == 2) |
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401 retval = search_path_for_file (path, names); |
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402 else if (nargin == 3) |
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403 { |
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404 std::string opt = args(2).string_value (); |
| 4243 | 405 |
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406 if (! error_state && opt == "all") |
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407 retval = Cell (make_absolute |
| 10250 | 408 (search_path_for_all_files (path, names))); |
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409 else |
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410 error ("file_in_path: invalid option"); |
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411 } |
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412 } |
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413 else |
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414 error ("file_in_path: all arguments must be strings"); |
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415 } |
| 1755 | 416 else |
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417 error ("file_in_path: PATH must be a string"); |
| 686 | 418 } |
| 419 else | |
| 5823 | 420 print_usage (); |
| 686 | 421 |
| 422 return retval; | |
| 423 } | |
| 424 | |
| 13094 | 425 /* |
| 426 %!test | |
| 427 %! f = file_in_path (path (), "plot.m"); | |
| 428 %! assert (ischar (f)); | |
| 429 %! assert (! isempty (f)); | |
| 430 | |
| 431 %!test | |
| 432 %! f = file_in_path (path (), "$$probably_!!_not_&&_a_!!_file$$"); | |
| 433 %! assert (f, ""); | |
| 434 | |
| 435 %!test | |
| 436 %! lst = file_in_path (path (), "$$probably_!!_not_&&_a_!!_file$$", "all"); | |
| 437 %! assert (lst, {}); | |
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438 |
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439 %!error file_in_path () |
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440 %!error file_in_path ("foo") |
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441 %!error file_in_path ("foo", "bar", "baz", 1) |
| 13094 | 442 */ |
| 443 | |
| 3536 | 444 std::string |
| 3523 | 445 file_in_path (const std::string& name, const std::string& suffix) |
| 526 | 446 { |
| 3523 | 447 std::string nm = name; |
| 526 | 448 |
| 1755 | 449 if (! suffix.empty ()) |
| 450 nm.append (suffix); | |
| 686 | 451 |
| 10250 | 452 return octave_env::make_absolute (load_path::find_file (nm)); |
| 526 | 453 } |
| 454 | |
| 581 | 455 // See if there is an function file in the path. If so, return the |
| 456 // full path to the file. | |
| 457 | |
| 3536 | 458 std::string |
| 3523 | 459 fcn_file_in_path (const std::string& name) |
| 526 | 460 { |
| 3523 | 461 std::string retval; |
| 908 | 462 |
| 1755 | 463 int len = name.length (); |
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464 |
| 1755 | 465 if (len > 0) |
| 466 { | |
| 5832 | 467 if (octave_env::absolute_pathname (name)) |
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468 { |
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469 file_stat fs (name); |
| 5832 | 470 |
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471 if (fs.exists () && ! fs.is_dir ()) |
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472 retval = name; |
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473 } |
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474 else if (len > 2 && name[len - 2] == '.' && name[len - 1] == 'm') |
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475 retval = load_path::find_fcn_file (name.substr (0, len-2)); |
| 908 | 476 else |
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477 { |
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478 std::string fname = name; |
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479 size_t pos = name.find_first_of (Vfilemarker); |
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480 if (pos != std::string::npos) |
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481 fname = name.substr (0, pos); |
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482 |
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483 retval = load_path::find_fcn_file (fname); |
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484 } |
| 908 | 485 } |
| 1755 | 486 |
| 487 return retval; | |
| 526 | 488 } |
| 489 | |
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490 // See if there is a directory called "name" in the path and if it |
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491 // contains a Contents.m file return the full path to this file. |
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492 |
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493 std::string |
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494 contents_file_in_path (const std::string& dir) |
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495 { |
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496 std::string retval; |
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497 |
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498 if (dir.length () > 0) |
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499 { |
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500 std::string tcontents = file_ops::concat (load_path::find_dir (dir), |
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501 std::string ("Contents.m")); |
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502 |
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503 file_stat fs (tcontents); |
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504 |
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505 if (fs.exists ()) |
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506 retval = octave_env::make_absolute (tcontents); |
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507 } |
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508 |
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509 return retval; |
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510 } |
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511 |
| 5864 | 512 // See if there is a .oct file in the path. If so, return the |
| 581 | 513 // full path to the file. |
| 514 | |
| 3536 | 515 std::string |
| 3523 | 516 oct_file_in_path (const std::string& name) |
| 572 | 517 { |
| 3523 | 518 std::string retval; |
| 908 | 519 |
| 1755 | 520 int len = name.length (); |
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521 |
| 1755 | 522 if (len > 0) |
| 523 { | |
| 5832 | 524 if (octave_env::absolute_pathname (name)) |
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525 { |
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526 file_stat fs (name); |
| 5832 | 527 |
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528 if (fs.exists ()) |
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529 retval = name; |
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530 } |
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531 else if (len > 4 && name[len - 4] == '.' && name[len - 3] == 'o' |
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532 && name[len - 2] == 'c' && name[len - 1] == 't') |
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533 retval = load_path::find_oct_file (name.substr (0, len-4)); |
| 908 | 534 else |
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535 retval = load_path::find_oct_file (name); |
| 908 | 536 } |
| 1755 | 537 |
| 538 return retval; | |
| 572 | 539 } |
| 540 | |
| 5864 | 541 // See if there is a .mex file in the path. If so, return the |
| 542 // full path to the file. | |
| 543 | |
| 544 std::string | |
| 545 mex_file_in_path (const std::string& name) | |
| 546 { | |
| 547 std::string retval; | |
| 548 | |
| 549 int len = name.length (); | |
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550 |
| 5864 | 551 if (len > 0) |
| 552 { | |
| 553 if (octave_env::absolute_pathname (name)) | |
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554 { |
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555 file_stat fs (name); |
| 5864 | 556 |
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557 if (fs.exists ()) |
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558 retval = name; |
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559 } |
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560 else if (len > 4 && name[len - 4] == '.' && name[len - 3] == 'm' |
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561 && name[len - 2] == 'e' && name[len - 1] == 'x') |
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562 retval = load_path::find_mex_file (name.substr (0, len-4)); |
| 5864 | 563 else |
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564 retval = load_path::find_mex_file (name); |
| 5864 | 565 } |
| 566 | |
| 567 return retval; | |
| 568 } | |
| 569 | |
| 3103 | 570 // Replace backslash escapes in a string with the real values. |
| 571 | |
| 3536 | 572 std::string |
| 3523 | 573 do_string_escapes (const std::string& s) |
| 3103 | 574 { |
| 3523 | 575 std::string retval; |
| 3103 | 576 |
| 577 size_t i = 0; | |
| 578 size_t j = 0; | |
| 579 size_t len = s.length (); | |
| 580 | |
| 581 retval.resize (len); | |
| 582 | |
| 583 while (j < len) | |
| 584 { | |
| 585 if (s[j] == '\\' && j+1 < len) | |
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586 { |
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587 switch (s[++j]) |
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588 { |
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589 case '0': |
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590 retval[i] = '\0'; |
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591 break; |
| 3893 | 592 |
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593 case 'a': |
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594 retval[i] = '\a'; |
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595 break; |
| 3103 | 596 |
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597 case 'b': // backspace |
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598 retval[i] = '\b'; |
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599 break; |
| 3103 | 600 |
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601 case 'f': // formfeed |
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602 retval[i] = '\f'; |
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603 break; |
| 3103 | 604 |
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605 case 'n': // newline |
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606 retval[i] = '\n'; |
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607 break; |
| 3103 | 608 |
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609 case 'r': // carriage return |
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610 retval[i] = '\r'; |
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611 break; |
| 3103 | 612 |
|
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613 case 't': // horizontal tab |
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614 retval[i] = '\t'; |
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615 break; |
| 3103 | 616 |
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617 case 'v': // vertical tab |
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618 retval[i] = '\v'; |
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619 break; |
| 3103 | 620 |
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621 case '\\': // backslash |
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622 retval[i] = '\\'; |
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623 break; |
| 3103 | 624 |
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625 case '\'': // quote |
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626 retval[i] = '\''; |
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627 break; |
| 3103 | 628 |
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629 case '"': // double quote |
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630 retval[i] = '"'; |
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631 break; |
| 3103 | 632 |
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633 default: |
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634 warning ("unrecognized escape sequence '\\%c' --\ |
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635 converting to '%c'", s[j], s[j]); |
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636 retval[i] = s[j]; |
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637 break; |
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638 } |
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639 } |
| 3103 | 640 else |
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641 { |
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642 retval[i] = s[j]; |
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643 } |
| 3103 | 644 |
| 645 i++; | |
| 646 j++; | |
| 647 } | |
| 648 | |
| 3105 | 649 retval.resize (i); |
| 3103 | 650 |
| 651 return retval; | |
| 652 } | |
| 653 | |
| 654 DEFUN (do_string_escapes, args, , | |
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655 "-*- texinfo -*-\n\ |
| 3446 | 656 @deftypefn {Built-in Function} {} do_string_escapes (@var{string})\n\ |
| 657 Convert special characters in @var{string} to their escaped forms.\n\ | |
| 658 @end deftypefn") | |
| 3103 | 659 { |
| 660 octave_value retval; | |
| 661 | |
| 662 int nargin = args.length (); | |
| 663 | |
| 664 if (nargin == 1) | |
| 665 { | |
| 666 if (args(0).is_string ()) | |
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667 retval = do_string_escapes (args(0).string_value ()); |
| 3103 | 668 else |
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669 error ("do_string_escapes: STRING argument must be of type string"); |
| 3103 | 670 } |
| 671 else | |
| 5823 | 672 print_usage (); |
| 3103 | 673 |
| 674 return retval; | |
| 675 } | |
| 676 | |
| 13094 | 677 /* |
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678 %!assert (do_string_escapes ('foo\nbar'), "foo\nbar") |
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679 %!assert (do_string_escapes ("foo\\nbar"), "foo\nbar") |
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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 |
|
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683 %!assert (do_string_escapes ('\a\b\f\n\r\t\v'), "\a\b\f\n\r\t\v") |
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684 %!assert (do_string_escapes ("\\a\\b\\f\\n\\r\\t\\v"), "\a\b\f\n\r\t\v") |
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685 %!assert (do_string_escapes ("\\a\\b\\f\\n\\r\\t\\v"), |
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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 |
|
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689 %!error do_string_escapes () |
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690 %!error do_string_escapes ("foo", "bar") |
| 13094 | 691 */ |
| 692 | |
| 1755 | 693 const char * |
| 801 | 694 undo_string_escape (char c) |
| 695 { | |
| 696 if (! c) | |
| 1755 | 697 return ""; |
| 801 | 698 |
| 699 switch (c) | |
| 700 { | |
| 3893 | 701 case '\0': |
| 702 return "\\0"; | |
| 703 | |
| 801 | 704 case '\a': |
| 705 return "\\a"; | |
| 706 | |
| 707 case '\b': // backspace | |
| 708 return "\\b"; | |
| 709 | |
| 710 case '\f': // formfeed | |
| 711 return "\\f"; | |
| 712 | |
| 713 case '\n': // newline | |
| 714 return "\\n"; | |
| 715 | |
| 716 case '\r': // carriage return | |
| 717 return "\\r"; | |
| 718 | |
| 719 case '\t': // horizontal tab | |
| 720 return "\\t"; | |
| 721 | |
| 722 case '\v': // vertical tab | |
| 723 return "\\v"; | |
| 724 | |
| 725 case '\\': // backslash | |
| 726 return "\\\\"; | |
| 727 | |
| 728 case '"': // double quote | |
| 729 return "\\\""; | |
| 730 | |
| 731 default: | |
| 1755 | 732 { |
|
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733 static char retval[2]; |
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734 retval[0] = c; |
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735 retval[1] = '\0'; |
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736 return retval; |
| 1755 | 737 } |
| 801 | 738 } |
| 739 } | |
| 740 | |
| 3536 | 741 std::string |
| 3523 | 742 undo_string_escapes (const std::string& s) |
| 801 | 743 { |
| 3523 | 744 std::string retval; |
| 801 | 745 |
| 1755 | 746 for (size_t i = 0; i < s.length (); i++) |
| 747 retval.append (undo_string_escape (s[i])); | |
| 801 | 748 |
| 1755 | 749 return retval; |
| 801 | 750 } |
| 751 | |
| 1957 | 752 DEFUN (undo_string_escapes, args, , |
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753 "-*- texinfo -*-\n\ |
| 3361 | 754 @deftypefn {Built-in Function} {} undo_string_escapes (@var{s})\n\ |
|
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755 Convert special characters in strings back to their escaped forms. For\n\ |
| 3361 | 756 example, the expression\n\ |
| 757 \n\ | |
| 758 @example\n\ | |
| 759 bell = \"\\a\";\n\ | |
| 760 @end example\n\ | |
| 761 \n\ | |
| 762 @noindent\n\ | |
| 763 assigns the value of the alert character (control-g, ASCII code 7) to\n\ | |
| 764 the string variable @code{bell}. If this string is printed, the\n\ | |
| 765 system will ring the terminal bell (if it is possible). This is\n\ | |
| 766 normally the desired outcome. However, sometimes it is useful to be\n\ | |
| 767 able to print the original representation of the string, with the\n\ | |
| 768 special characters replaced by their escape sequences. For example,\n\ | |
| 769 \n\ | |
| 770 @example\n\ | |
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771 @group\n\ |
| 3361 | 772 octave:13> undo_string_escapes (bell)\n\ |
| 773 ans = \\a\n\ | |
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774 @end group\n\ |
| 3361 | 775 @end example\n\ |
| 776 \n\ | |
| 777 @noindent\n\ | |
| 778 replaces the unprintable alert character with its printable\n\ | |
| 779 representation.\n\ | |
| 780 @end deftypefn") | |
| 801 | 781 { |
| 2086 | 782 octave_value retval; |
| 801 | 783 |
| 784 int nargin = args.length (); | |
| 785 | |
| 3103 | 786 if (nargin == 1) |
| 787 { | |
| 788 if (args(0).is_string ()) | |
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789 retval = undo_string_escapes (args(0).string_value ()); |
| 3103 | 790 else |
|
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791 error ("undo_string_escapes: S argument must be a string"); |
| 3103 | 792 } |
| 801 | 793 else |
| 5823 | 794 print_usage (); |
| 801 | 795 |
| 796 return retval; | |
| 797 } | |
| 798 | |
| 13094 | 799 /* |
|
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800 %!assert (undo_string_escapes ("foo\nbar"), 'foo\nbar') |
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801 %!assert (undo_string_escapes ("foo\nbar"), "foo\\nbar") |
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802 %!assert (undo_string_escapes (["foo", char(10), "bar"]), "foo\\nbar") |
| 13094 | 803 |
|
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804 %!assert (undo_string_escapes ("\a\b\f\n\r\t\v"), '\a\b\f\n\r\t\v') |
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805 %!assert (undo_string_escapes ("\a\b\f\n\r\t\v"), "\\a\\b\\f\\n\\r\\t\\v") |
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806 %!assert (undo_string_escapes (char ([7, 8, 12, 10, 13, 9, 11])), |
|
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807 %! "\\a\\b\\f\\n\\r\\t\\v") |
| 13094 | 808 |
|
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809 %!error undo_string_escapes () |
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810 %!error undo_string_escapes ("foo", "bar") |
| 13094 | 811 */ |
| 812 | |
| 8229 | 813 DEFUN (is_absolute_filename, args, , |
|
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814 "-*- texinfo -*-\n\ |
| 8229 | 815 @deftypefn {Built-in Function} {} is_absolute_filename (@var{file})\n\ |
| 816 Return true if @var{file} is an absolute filename.\n\ | |
|
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817 @seealso{is_rooted_relative_filename, make_absolute_filename, isdir}\n\ |
| 8229 | 818 @end deftypefn") |
| 819 { | |
| 820 octave_value retval = false; | |
| 821 | |
| 822 if (args.length () == 1) | |
| 823 retval = (args(0).is_string () | |
|
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824 && octave_env::absolute_pathname (args(0).string_value ())); |
| 8229 | 825 else |
| 826 print_usage (); | |
| 827 | |
| 828 return retval; | |
| 829 } | |
| 830 | |
| 13094 | 831 /* |
|
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832 ## FIXME: We need system-dependent tests here. |
| 13094 | 833 |
|
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834 %!error is_absolute_filename () |
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835 %!error is_absolute_filename ("foo", "bar") |
| 13094 | 836 */ |
| 837 | |
| 8229 | 838 DEFUN (is_rooted_relative_filename, args, , |
|
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839 "-*- texinfo -*-\n\ |
| 8229 | 840 @deftypefn {Built-in Function} {} is_rooted_relative_filename (@var{file})\n\ |
| 841 Return true if @var{file} is a rooted-relative filename.\n\ | |
|
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|
842 @seealso{is_absolute_filename, make_absolute_filename, isdir}\n\ |
| 8229 | 843 @end deftypefn") |
| 844 { | |
| 845 octave_value retval = false; | |
| 846 | |
| 847 if (args.length () == 1) | |
| 848 retval = (args(0).is_string () | |
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849 && octave_env::rooted_relative_pathname (args(0).string_value ())); |
| 8229 | 850 else |
| 851 print_usage (); | |
| 852 | |
| 853 return retval; | |
| 854 } | |
| 855 | |
| 13094 | 856 /* |
|
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|
857 ## FIXME: We need system-dependent tests here. |
| 13094 | 858 |
|
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859 %!error is_rooted_relative_filename () |
|
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860 %!error is_rooted_relative_filename ("foo", "bar") |
| 13094 | 861 */ |
| 862 | |
| 8229 | 863 DEFUN (make_absolute_filename, args, , |
|
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864 "-*- texinfo -*-\n\ |
| 8229 | 865 @deftypefn {Built-in Function} {} make_absolute_filename (@var{file})\n\ |
|
14819
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866 Return the full name of @var{file} beginning from the root of the file\n\ |
|
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867 system. No check is done for the existence of @var{file}.\n\ |
|
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868 @seealso{canonicalize_file_name, is_absolute_filename, is_rooted_relative_filename, isdir}\n\ |
| 8229 | 869 @end deftypefn") |
| 870 { | |
| 871 octave_value retval = std::string (); | |
| 872 | |
| 873 if (args.length () == 1) | |
| 874 { | |
| 875 std::string nm = args(0).string_value (); | |
| 876 | |
| 877 if (! error_state) | |
|
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878 retval = octave_env::make_absolute (nm); |
| 8229 | 879 else |
|
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880 error ("make_absolute_filename: FILE argument must be a file name"); |
|
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881 } |
| 8229 | 882 else |
| 883 print_usage (); | |
| 884 | |
| 885 return retval; | |
| 886 } | |
| 887 | |
| 13094 | 888 /* |
|
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889 ## FIXME: We need system-dependent tests here. |
| 13094 | 890 |
|
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891 %!error make_absolute_filename () |
|
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892 %!error make_absolute_filename ("foo", "bar") |
| 13094 | 893 */ |
| 894 | |
|
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895 DEFUN (dir_in_loadpath, args, , |
|
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896 "-*- texinfo -*-\n\ |
|
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897 @deftypefn {Built-in Function} {} dir_in_loadpath (@var{dir})\n\ |
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898 @deftypefnx {Built-in Function} {} dir_in_loadpath (@var{dir}, \"all\")\n\ |
| 8229 | 899 Return the full name of the path element matching @var{dir}. The\n\ |
| 900 match is performed at the end of each path element. For example, if\n\ | |
|
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901 @var{dir} is @qcode{\"foo/bar\"}, it matches the path element\n\ |
|
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902 @nospell{@qcode{\"/some/dir/foo/bar\"}}, but not\n\ |
|
17be601bc783
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903 @nospell{@qcode{\"/some/dir/foo/bar/baz\"}}\n\ |
|
17be601bc783
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904 @nospell{@qcode{\"/some/dir/allfoo/bar\"}}.\n\ |
|
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|
905 \n\ |
|
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906 The second argument is optional. If it is supplied, return a cell array\n\ |
|
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907 containing all name matches rather than just the first.\n\ |
|
18062
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908 @seealso{file_in_path, file_in_loadpath, path}\n\ |
| 8229 | 909 @end deftypefn") |
| 910 { | |
| 911 octave_value retval = std::string (); | |
| 912 | |
|
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913 int nargin = args.length (); |
|
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914 |
|
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915 std::string dir; |
|
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916 |
|
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|
917 if (nargin == 1 || nargin == 2) |
| 8229 | 918 { |
|
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919 dir = args(0).string_value (); |
| 8229 | 920 |
| 921 if (! error_state) | |
|
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922 { |
|
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923 if (nargin == 1) |
|
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924 retval = load_path::find_dir (dir); |
|
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925 else if (nargin == 2) |
|
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926 retval = Cell (load_path::find_matching_dirs (dir)); |
|
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927 } |
| 8229 | 928 else |
|
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|
929 error ("dir_in_loadpath: DIR must be a directory name"); |
| 8229 | 930 } |
| 931 else | |
| 932 print_usage (); | |
| 933 | |
| 934 return retval; | |
| 935 } | |
| 936 | |
| 13094 | 937 /* |
|
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938 ## FIXME: We need system-dependent tests here. |
| 13094 | 939 |
|
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940 %!error dir_in_loadpath () |
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|
941 %!error dir_in_loadpath ("foo", "bar", 1) |
| 13094 | 942 */ |
| 943 | |
| 5465 | 944 DEFUNX ("errno", Ferrno, args, , |
|
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945 "-*- texinfo -*-\n\ |
| 10840 | 946 @deftypefn {Built-in Function} {@var{err} =} errno ()\n\ |
| 5465 | 947 @deftypefnx {Built-in Function} {@var{err} =} errno (@var{val})\n\ |
| 948 @deftypefnx {Built-in Function} {@var{err} =} errno (@var{name})\n\ | |
| 949 Return the current value of the system-dependent variable errno,\n\ | |
| 950 set its value to @var{val} and return the previous value, or return\n\ | |
| 951 the named error code given @var{name} as a character string, or -1\n\ | |
| 952 if @var{name} is not found.\n\ | |
| 3716 | 953 @end deftypefn") |
| 954 { | |
| 955 octave_value retval; | |
| 956 | |
| 5465 | 957 int nargin = args.length (); |
| 958 | |
| 959 if (nargin == 1) | |
| 960 { | |
| 961 if (args(0).is_string ()) | |
|
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|
962 { |
|
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963 std::string nm = args(0).string_value (); |
| 5465 | 964 |
|
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965 if (! error_state) |
|
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966 retval = octave_errno::lookup (nm); |
|
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967 else |
|
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968 error ("errno: expecting character string argument"); |
|
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969 } |
| 5465 | 970 else |
|
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971 { |
|
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972 int val = args(0).int_value (); |
| 5465 | 973 |
|
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974 if (! error_state) |
|
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975 retval = octave_errno::set (val); |
|
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976 else |
|
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|
977 error ("errno: expecting integer argument"); |
|
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|
978 } |
| 5465 | 979 } |
| 980 else if (nargin == 0) | |
| 981 retval = octave_errno::get (); | |
| 3716 | 982 else |
| 5823 | 983 print_usage (); |
| 3716 | 984 |
| 985 return retval; | |
| 986 } | |
| 987 | |
| 13094 | 988 /* |
|
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|
989 %!assert (isnumeric (errno ())) |
| 13094 | 990 |
| 991 %!test | |
| 992 %! lst = errno_list (); | |
| 993 %! fns = fieldnames (lst); | |
| 994 %! oldval = errno (fns{1}); | |
| 995 %! assert (isnumeric (oldval)); | |
| 996 %! errno (oldval); | |
| 997 %! newval = errno (); | |
| 998 %! assert (oldval, newval); | |
|
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|
999 |
|
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|
1000 %!error errno ("foo", 1) |
| 13094 | 1001 */ |
| 1002 | |
| 5465 | 1003 DEFUN (errno_list, args, , |
|
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1004 "-*- texinfo -*-\n\ |
| 5465 | 1005 @deftypefn {Built-in Function} {} errno_list ()\n\ |
| 1006 Return a structure containing the system-dependent errno values.\n\ | |
| 1007 @end deftypefn") | |
| 1008 { | |
| 1009 octave_value retval; | |
| 1010 | |
| 1011 if (args.length () == 0) | |
| 1012 retval = octave_errno::list (); | |
| 1013 else | |
| 5823 | 1014 print_usage (); |
| 5465 | 1015 |
| 1016 return retval; | |
| 1017 } | |
| 3716 | 1018 |
| 13094 | 1019 /* |
|
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1020 %!assert (isstruct (errno_list ())) |
| 13094 | 1021 |
|
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|
1022 %!error errno_list ("foo") |
| 13094 | 1023 */ |
| 1024 | |
| 2285 | 1025 static void |
| 5275 | 1026 check_dimensions (octave_idx_type& nr, octave_idx_type& nc, const char *warnfor) |
| 3354 | 1027 { |
| 1028 if (nr < 0 || nc < 0) | |
| 1029 { | |
| 5781 | 1030 warning_with_id ("Octave:neg-dim-as-zero", |
|
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1031 "%s: converting negative dimension to zero", warnfor); |
| 3354 | 1032 |
| 4457 | 1033 nr = (nr < 0) ? 0 : nr; |
| 1034 nc = (nc < 0) ? 0 : nc; | |
| 3354 | 1035 } |
| 1036 } | |
| 1037 | |
| 1038 void | |
| 4513 | 1039 check_dimensions (dim_vector& dim, const char *warnfor) |
| 4481 | 1040 { |
| 1041 bool neg = false; | |
| 1042 | |
| 1043 for (int i = 0; i < dim.length (); i++) | |
| 1044 { | |
| 1045 if (dim(i) < 0) | |
| 1046 { | |
| 1047 dim(i) = 0; | |
| 1048 neg = true; | |
| 1049 } | |
| 1050 } | |
| 1051 | |
| 5781 | 1052 if (neg) |
| 1053 warning_with_id ("Octave:neg-dim-as-zero", | |
|
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1054 "%s: converting negative dimension to zero", warnfor); |
| 4481 | 1055 } |
| 1056 | |
| 1057 | |
| 1058 void | |
| 1059 get_dimensions (const octave_value& a, const char *warn_for, | |
| 4513 | 1060 dim_vector& dim) |
| 4481 | 1061 { |
| 1062 if (a.is_scalar_type ()) | |
| 1063 { | |
| 1064 dim.resize (2); | |
| 4732 | 1065 dim(0) = a.int_value (); |
| 4481 | 1066 dim(1) = dim(0); |
| 1067 } | |
| 1068 else | |
| 1069 { | |
| 5275 | 1070 octave_idx_type nr = a.rows (); |
| 1071 octave_idx_type nc = a.columns (); | |
| 4481 | 1072 |
| 1073 if (nr == 1 || nc == 1) | |
| 1074 { | |
| 1075 Array<double> v = a.vector_value (); | |
| 1076 | |
| 1077 if (error_state) | |
| 1078 return; | |
| 1079 | |
| 5275 | 1080 octave_idx_type n = v.length (); |
| 4481 | 1081 dim.resize (n); |
| 5275 | 1082 for (octave_idx_type i = 0; i < n; i++) |
| 4783 | 1083 dim(i) = static_cast<int> (fix (v(i))); |
| 4481 | 1084 } |
| 1085 else | |
| 5257 | 1086 error ("%s (A): use %s (size (A)) instead", warn_for, warn_for); |
| 4481 | 1087 } |
| 1088 | |
| 5258 | 1089 if (! error_state) |
| 1090 check_dimensions (dim, warn_for); // May set error_state. | |
| 4481 | 1091 } |
| 1092 | |
| 1093 | |
| 1094 void | |
| 3354 | 1095 get_dimensions (const octave_value& a, const char *warn_for, |
|
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1096 octave_idx_type& nr, octave_idx_type& nc) |
| 3354 | 1097 { |
| 1098 if (a.is_scalar_type ()) | |
| 1099 { | |
| 4732 | 1100 nr = nc = a.int_value (); |
| 3354 | 1101 } |
| 1102 else | |
| 1103 { | |
| 1104 nr = a.rows (); | |
| 1105 nc = a.columns (); | |
| 1106 | |
| 1107 if ((nr == 1 && nc == 2) || (nr == 2 && nc == 1)) | |
|
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1108 { |
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1109 Array<double> v = a.vector_value (); |
| 3354 | 1110 |
|
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1111 if (error_state) |
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1112 return; |
| 3354 | 1113 |
|
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1114 nr = static_cast<octave_idx_type> (fix (v (0))); |
|
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1115 nc = static_cast<octave_idx_type> (fix (v (1))); |
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1116 } |
| 3354 | 1117 else |
|
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1118 error ("%s (A): use %s (size (A)) instead", warn_for, warn_for); |
| 3354 | 1119 } |
| 1120 | |
| 5258 | 1121 if (! error_state) |
| 1122 check_dimensions (nr, nc, warn_for); // May set error_state. | |
| 3354 | 1123 } |
| 1124 | |
| 1125 void | |
| 1126 get_dimensions (const octave_value& a, const octave_value& b, | |
|
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1127 const char *warn_for, octave_idx_type& nr, octave_idx_type& nc) |
| 3354 | 1128 { |
| 4732 | 1129 nr = a.is_empty () ? 0 : a.int_value (); |
| 1130 nc = b.is_empty () ? 0 : b.int_value (); | |
| 3354 | 1131 |
| 1132 if (error_state) | |
| 1133 error ("%s: expecting two scalar arguments", warn_for); | |
| 1134 else | |
| 1135 check_dimensions (nr, nc, warn_for); // May set error_state. | |
| 1136 } | |
| 1137 | |
|
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1138 octave_idx_type |
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1139 dims_to_numel (const dim_vector& dims, const octave_value_list& idx) |
|
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1140 { |
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1141 octave_idx_type retval; |
|
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1142 |
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1143 octave_idx_type len = idx.length (); |
|
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1144 |
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1145 if (len == 0) |
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1146 retval = dims.numel (); |
|
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1147 else |
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1148 { |
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|
1149 const dim_vector dv = dims.redim (len); |
|
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1150 retval = 1; |
|
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1151 for (octave_idx_type i = 0; i < len; i++) |
|
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1152 { |
|
9842
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|
1153 octave_value idxi = idx(i); |
|
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1154 if (idxi.is_magic_colon ()) |
|
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1155 retval *= dv(i); |
|
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1156 else if (idxi.is_numeric_type ()) |
|
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1157 retval *= idxi.numel (); |
|
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1158 else |
|
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1159 { |
|
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|
1160 idx_vector jdx = idxi.index_vector (); |
|
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1161 if (error_state) |
|
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|
1162 break; |
|
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1163 retval *= jdx.length (dv(i)); |
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1164 } |
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1165 } |
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1166 } |
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1167 |
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1168 return retval; |
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1169 } |
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|
1170 |
| 4478 | 1171 Matrix |
| 5275 | 1172 identity_matrix (octave_idx_type nr, octave_idx_type nc) |
| 4478 | 1173 { |
| 1174 Matrix m (nr, nc, 0.0); | |
| 1175 | |
| 1176 if (nr > 0 && nc > 0) | |
| 1177 { | |
| 5275 | 1178 octave_idx_type n = std::min (nr, nc); |
| 4478 | 1179 |
| 5275 | 1180 for (octave_idx_type i = 0; i < n; i++) |
|
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1181 m (i, i) = 1.0; |
| 4478 | 1182 } |
| 1183 | |
| 1184 return m; | |
| 1185 } | |
| 1186 | |
|
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1187 FloatMatrix |
|
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|
1188 float_identity_matrix (octave_idx_type nr, octave_idx_type nc) |
|
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1189 { |
|
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1190 FloatMatrix m (nr, nc, 0.0); |
|
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1191 |
|
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1192 if (nr > 0 && nc > 0) |
|
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1193 { |
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1194 octave_idx_type n = std::min (nr, nc); |
|
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1195 |
|
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1196 for (octave_idx_type i = 0; i < n; i++) |
|
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1197 m (i, i) = 1.0; |
|
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1198 } |
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1199 |
|
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1200 return m; |
|
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1201 } |
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1202 |
|
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1203 size_t |
| 3622 | 1204 octave_format (std::ostream& os, const char *fmt, ...) |
| 3620 | 1205 { |
|
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1206 size_t retval; |
| 3620 | 1207 |
| 1208 va_list args; | |
| 1209 va_start (args, fmt); | |
| 1210 | |
| 1211 retval = octave_vformat (os, fmt, args); | |
| 1212 | |
| 1213 va_end (args); | |
| 1214 | |
| 1215 return retval; | |
| 1216 } | |
| 1217 | |
|
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1218 size_t |
| 3622 | 1219 octave_vformat (std::ostream& os, const char *fmt, va_list args) |
| 3620 | 1220 { |
|
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1221 std::string s = octave_vasprintf (fmt, args); |
| 3620 | 1222 |
|
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1223 os << s; |
| 3620 | 1224 |
|
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1225 return s.length (); |
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1226 } |
| 4135 | 1227 |
|
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1228 std::string |
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|
1229 octave_vasprintf (const char *fmt, va_list args) |
|
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1230 { |
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1231 std::string retval; |
|
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1232 |
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1233 char *result; |
| 4302 | 1234 |
|
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1235 int status = gnulib::vasprintf (&result, fmt, args); |
| 4302 | 1236 |
|
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1237 if (status >= 0) |
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1238 { |
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|
1239 retval = result; |
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|
1240 ::free (result); |
| 4302 | 1241 } |
| 3620 | 1242 |
| 1243 return retval; | |
| 1244 } | |
| 1245 | |
|
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1246 std::string |
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1247 octave_asprintf (const char *fmt, ...) |
| 4302 | 1248 { |
|
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|
1249 std::string retval; |
| 4302 | 1250 |
| 1251 va_list args; | |
| 1252 va_start (args, fmt); | |
| 1253 | |
|
14005
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John W. Eaton <jwe@octave.org>
parents:
13991
diff
changeset
|
1254 retval = octave_vasprintf (fmt, args); |
| 4302 | 1255 |
| 1256 va_end (args); | |
| 1257 | |
| 1258 return retval; | |
| 1259 } | |
| 1260 | |
| 4086 | 1261 void |
| 1262 octave_sleep (double seconds) | |
| 1263 { | |
| 1264 if (seconds > 0) | |
| 1265 { | |
| 1266 double t; | |
| 1267 | |
| 4093 | 1268 unsigned int usec |
|
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10257
diff
changeset
|
1269 = static_cast<unsigned int> (modf (seconds, &t) * 1000000); |
| 4086 | 1270 |
| 4093 | 1271 unsigned int sec |
|
15215
9020dddc925a
use std::numeric_limits for integer max and min values
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|
1272 = ((t > std::numeric_limits<unsigned int>::max ()) |
|
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diff
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|
1273 ? std::numeric_limits<unsigned int>::max () |
|
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|
1274 : static_cast<unsigned int> (t)); |
| 4086 | 1275 |
| 5770 | 1276 // Versions of these functions that accept unsigned int args are |
| 1277 // defined in cutils.c. | |
| 4086 | 1278 octave_sleep (sec); |
| 1279 octave_usleep (usec); | |
|
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|
1280 |
|
10142
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|
1281 octave_quit (); |
| 4086 | 1282 } |
| 1283 } | |
| 1284 | |
|
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|
1285 DEFUN (isindex, args, , |
|
17787
175b392e91fe
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|
1286 "-*- texinfo -*-\n\ |
|
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|
1287 @deftypefn {Built-in Function} {} isindex (@var{ind})\n\ |
|
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Improve docstrings for all isXXX functions.
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diff
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|
1288 @deftypefnx {Built-in Function} {} isindex (@var{ind}, @var{n})\n\ |
|
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|
1289 Return true if @var{ind} is a valid index. Valid indices are\n\ |
|
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|
1290 either positive integers (although possibly of real data type), or logical\n\ |
|
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|
1291 arrays. If present, @var{n} specifies the maximum extent of the dimension\n\ |
|
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|
1292 to be indexed. When possible the internal result is cached so that\n\ |
|
0d9640d755b1
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|
1293 subsequent indexing using @var{ind} will not perform the check again.\n\ |
|
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|
1294 @end deftypefn") |
|
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|
1295 { |
|
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|
1296 octave_value retval; |
|
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|
1297 int nargin = args.length (); |
|
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|
1298 octave_idx_type n = 0; |
|
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|
1299 |
|
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|
1300 if (nargin == 2) |
|
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|
1301 n = args(1).idx_type_value (); |
|
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|
1302 else if (nargin != 1) |
|
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|
1303 print_usage (); |
|
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|
1304 |
|
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|
1305 if (! error_state) |
|
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|
1306 { |
|
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Jaroslav Hajek <highegg@gmail.com>
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diff
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|
1307 unwind_protect frame; |
|
10605
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|
1308 |
|
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|
1309 frame.protect_var (error_state); |
|
10605
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|
1310 |
|
10066
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|
1311 frame.protect_var (discard_error_messages); |
|
9487
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|
1312 discard_error_messages = true; |
|
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|
1313 |
|
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diff
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|
1314 try |
|
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diff
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|
1315 { |
|
18129
e473c4853afc
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parents:
18104
diff
changeset
|
1316 idx_vector idx = args(0).index_vector (true); |
|
e473c4853afc
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John W. Eaton <jwe@octave.org>
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|
1317 |
|
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|
1318 if (! error_state) |
|
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|
1319 { |
|
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Jaroslav Hajek <highegg@gmail.com>
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|
1320 if (nargin == 2) |
|
2894af292e69
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parents:
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diff
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|
1321 retval = idx.extent (n) <= n; |
|
2894af292e69
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diff
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|
1322 else |
|
2894af292e69
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diff
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|
1323 retval = true; |
|
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diff
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|
1324 } |
|
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diff
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|
1325 else |
|
2894af292e69
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diff
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|
1326 retval = false; |
|
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|
1327 } |
|
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changeset
|
1328 catch (octave_execution_exception) |
|
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diff
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|
1329 { |
|
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|
1330 retval = false; |
|
2894af292e69
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|
1331 } |
|
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|
1332 } |
|
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|
1333 |
|
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|
1334 return retval; |
|
2894af292e69
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diff
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|
1335 } |
|
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diff
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|
1336 |
| 13094 | 1337 /* |
|
14429
eff4a5933e28
Update %!tests in src/ directory with Octave coding conventions.
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parents:
14138
diff
changeset
|
1338 %!assert (isindex ([1, 2, 3])) |
|
eff4a5933e28
Update %!tests in src/ directory with Octave coding conventions.
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parents:
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diff
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|
1339 %!assert (isindex (1:3)) |
|
eff4a5933e28
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Rik <octave@nomad.inbox5.com>
parents:
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diff
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|
1340 %!assert (isindex ([1, 2, -3]), false) |
| 13094 | 1341 |
|
14429
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diff
changeset
|
1342 %!error isindex () |
| 13094 | 1343 */ |
| 1344 | |
|
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|
1345 octave_value_list |
|
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parents:
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diff
changeset
|
1346 do_simple_cellfun (octave_value_list (*fun) (const octave_value_list&, int), |
|
11586
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strip trailing whitespace from source files
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parents:
11575
diff
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|
1347 const char *fun_name, const octave_value_list& args, |
|
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|
1348 int nargout) |
|
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|
1349 { |
|
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diff
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|
1350 octave_value_list new_args = args, retval; |
|
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|
1351 int nargin = args.length (); |
|
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diff
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|
1352 OCTAVE_LOCAL_BUFFER (bool, iscell, nargin); |
|
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diff
changeset
|
1353 OCTAVE_LOCAL_BUFFER (Cell, cells, nargin); |
|
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diff
changeset
|
1354 OCTAVE_LOCAL_BUFFER (Cell, rcells, nargout); |
|
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|
1355 |
|
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|
1356 const Cell *ccells = cells; |
|
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|
1357 |
|
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|
1358 octave_idx_type numel = 1; |
|
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|
1359 dim_vector dims (1, 1); |
|
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|
1360 |
|
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|
1361 for (int i = 0; i < nargin; i++) |
|
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|
1362 { |
|
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|
1363 octave_value arg = new_args(i); |
|
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|
1364 iscell[i] = arg.is_cell (); |
|
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|
1365 if (iscell[i]) |
|
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1366 { |
|
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|
1367 cells[i] = arg.cell_value (); |
|
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|
1368 octave_idx_type n = ccells[i].numel (); |
|
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|
1369 if (n == 1) |
|
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|
1370 { |
|
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|
1371 iscell[i] = false; |
|
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|
1372 new_args(i) = ccells[i](0); |
|
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1373 } |
|
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|
1374 else if (numel == 1) |
|
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1375 { |
|
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|
1376 numel = n; |
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|
1377 dims = ccells[i].dims (); |
|
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|
1378 } |
|
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|
1379 else if (dims != ccells[i].dims ()) |
|
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1380 { |
|
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|
1381 error ("%s: cell arguments must have matching sizes", fun_name); |
|
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1382 break; |
|
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1383 } |
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1384 } |
|
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1385 } |
|
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1386 |
|
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1387 if (! error_state) |
|
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1388 { |
|
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|
1389 for (int i = 0; i < nargout; i++) |
|
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|
1390 rcells[i].clear (dims); |
|
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1391 |
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1392 for (octave_idx_type j = 0; j < numel; j++) |
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1393 { |
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1394 for (int i = 0; i < nargin; i++) |
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1395 if (iscell[i]) |
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1396 new_args(i) = ccells[i](j); |
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1397 |
|
10142
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1398 octave_quit (); |
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1399 |
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1400 const octave_value_list tmp = fun (new_args, nargout); |
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1401 |
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1402 if (tmp.length () < nargout) |
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1403 { |
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1404 error ("%s: do_simple_cellfun: internal error", fun_name); |
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1405 break; |
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1406 } |
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1407 else |
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1408 { |
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1409 for (int i = 0; i < nargout; i++) |
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1410 rcells[i](j) = tmp(i); |
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1411 } |
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1412 } |
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1413 } |
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1414 |
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1415 if (! error_state) |
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1416 { |
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1417 retval.resize (nargout); |
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1418 for (int i = 0; i < nargout; i++) |
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1419 retval(i) = rcells[i]; |
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1420 } |
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1421 |
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1422 return retval; |
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1423 } |
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1424 |
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1425 octave_value |
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1426 do_simple_cellfun (octave_value_list (*fun) (const octave_value_list&, int), |
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1427 const char *fun_name, const octave_value_list& args) |
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1428 { |
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1429 octave_value retval; |
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1430 const octave_value_list tmp = do_simple_cellfun (fun, fun_name, args, 1); |
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1431 if (tmp.length () > 0) |
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1432 retval = tmp(0); |
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1433 |
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1434 return retval; |
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1435 } |
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1436 |
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1437 octave_preserve_stream_state::~octave_preserve_stream_state (void) |
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1438 { |
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1439 stream.flags (oflags); |
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1440 stream.precision (oprecision); |
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1441 stream.width (owidth); |
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1442 stream.fill (ofill); |
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1443 } |