Mercurial > octave
annotate src/ov-struct.cc @ 8031:d9987dbdf91b
octave_struct::subsref: don't resize for simple x(idx) case
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Tue, 12 Aug 2008 13:20:27 -0400 |
| parents | 443a8f5a50fd |
| children | 283989f2da9b |
| rev | line source |
|---|---|
| 2376 | 1 /* |
| 2 | |
| 7017 | 3 Copyright (C) 1996, 1997, 1998, 2000, 2002, 2003, 2004, 2005, 2006, |
| 4 2007 John W. Eaton | |
| 2376 | 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. | |
| 2376 | 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/>. | |
| 2376 | 21 |
| 22 */ | |
| 23 | |
| 24 #ifdef HAVE_CONFIG_H | |
| 25 #include <config.h> | |
| 26 #endif | |
| 27 | |
| 3503 | 28 #include <iostream> |
| 2376 | 29 |
| 3933 | 30 #include "Cell.h" |
| 4358 | 31 #include "defun.h" |
| 2376 | 32 #include "error.h" |
| 4358 | 33 #include "gripes.h" |
| 2979 | 34 #include "oct-lvalue.h" |
| 3932 | 35 #include "ov-list.h" |
| 2376 | 36 #include "ov-struct.h" |
| 37 #include "unwind-prot.h" | |
| 6811 | 38 #include "utils.h" |
| 2948 | 39 #include "variables.h" |
| 2376 | 40 |
| 4750 | 41 #include "Array-util.h" |
| 42 | |
| 4687 | 43 #include "byte-swap.h" |
| 44 #include "ls-oct-ascii.h" | |
| 45 #include "ls-oct-binary.h" | |
| 46 #include "ls-hdf5.h" | |
| 47 #include "ls-utils.h" | |
| 5759 | 48 #include "pr-output.h" |
| 4687 | 49 |
| 3219 | 50 DEFINE_OCTAVE_ALLOCATOR(octave_struct); |
| 2376 | 51 |
| 4612 | 52 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA(octave_struct, "struct", "struct"); |
| 2376 | 53 |
| 4513 | 54 Cell |
| 3933 | 55 octave_struct::dotref (const octave_value_list& idx) |
| 2962 | 56 { |
| 4513 | 57 Cell retval; |
| 3933 | 58 |
| 59 assert (idx.length () == 1); | |
| 2962 | 60 |
| 3933 | 61 std::string nm = idx(0).string_value (); |
| 62 | |
| 4219 | 63 Octave_map::const_iterator p = map.seek (nm); |
| 2376 | 64 |
| 4219 | 65 if (p != map.end ()) |
| 3933 | 66 retval = map.contents (p); |
| 67 else | |
| 2376 | 68 error ("structure has no member `%s'", nm.c_str ()); |
| 69 | |
| 70 return retval; | |
| 71 } | |
| 72 | |
| 4513 | 73 #if 0 |
| 3933 | 74 static void |
| 75 gripe_invalid_index (void) | |
| 76 { | |
| 77 error ("invalid index for structure array"); | |
| 78 } | |
| 4513 | 79 #endif |
| 3933 | 80 |
| 81 static void | |
| 82 gripe_invalid_index_for_assignment (void) | |
| 83 { | |
| 84 error ("invalid index for structure array assignment"); | |
| 85 } | |
| 86 | |
| 87 static void | |
| 88 gripe_invalid_index_type (const std::string& nm, char t) | |
| 89 { | |
| 90 error ("%s cannot be indexed with %c", nm.c_str (), t); | |
| 91 } | |
| 92 | |
| 93 static void | |
| 94 gripe_failed_assignment (void) | |
| 95 { | |
| 96 error ("assignment to structure element failed"); | |
| 97 } | |
| 98 | |
|
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99 octave_value_list |
| 4247 | 100 octave_struct::subsref (const std::string& type, |
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101 const std::list<octave_value_list>& idx, |
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102 int nargout) |
| 3933 | 103 { |
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104 octave_value_list retval; |
| 3933 | 105 |
| 106 int skip = 1; | |
| 107 | |
| 108 switch (type[0]) | |
| 109 { | |
| 110 case '(': | |
| 111 { | |
| 112 if (type.length () > 1 && type[1] == '.') | |
| 113 { | |
| 4219 | 114 std::list<octave_value_list>::const_iterator p = idx.begin (); |
| 115 octave_value_list key_idx = *++p; | |
| 3933 | 116 |
| 4513 | 117 Cell tmp = dotref (key_idx); |
| 3933 | 118 |
| 119 if (! error_state) | |
| 120 { | |
| 7460 | 121 Cell t = tmp.index (idx.front (), true); |
| 3933 | 122 |
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123 retval(0) = (t.length () == 1) ? t(0) : octave_value (t, true); |
| 3933 | 124 |
| 4513 | 125 // We handled two index elements, so tell |
| 126 // next_subsref to skip both of them. | |
| 3933 | 127 |
| 4513 | 128 skip++; |
| 3933 | 129 } |
| 130 } | |
| 131 else | |
|
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132 retval(0) = map.index (idx.front (), false); |
| 3933 | 133 } |
| 134 break; | |
| 135 | |
| 136 case '.': | |
| 137 { | |
| 5592 | 138 if (map.numel() > 0) |
| 139 { | |
| 140 Cell t = dotref (idx.front ()); | |
| 3933 | 141 |
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parents:
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142 retval(0) = (t.length () == 1) ? t(0) : octave_value (t, true); |
| 5592 | 143 } |
| 3933 | 144 } |
| 145 break; | |
| 146 | |
| 147 case '{': | |
| 148 gripe_invalid_index_type (type_name (), type[0]); | |
| 149 break; | |
| 150 | |
| 151 default: | |
| 152 panic_impossible (); | |
| 153 } | |
| 154 | |
| 5775 | 155 // FIXME -- perhaps there should be an |
| 4994 | 156 // octave_value_list::next_subsref member function? See also |
| 157 // octave_user_function::subsref. | |
| 158 | |
| 159 if (idx.size () > 1) | |
|
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parents:
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160 retval = retval(0).next_subsref (nargout, type, idx, skip); |
| 3933 | 161 |
| 162 return retval; | |
| 163 } | |
| 164 | |
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octave_struct::subsref: don't resize for simple x(idx) case
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165 /* |
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166 %!test |
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octave_struct::subsref: don't resize for simple x(idx) case
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167 %! x(1).a.a = 1; x(2).a.a = 2; |
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octave_struct::subsref: don't resize for simple x(idx) case
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168 %! assert (size (x), [1, 2]); |
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d9987dbdf91b
octave_struct::subsref: don't resize for simple x(idx) case
John W. Eaton <jwe@octave.org>
parents:
7651
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169 %! assert (x(1).a.a, 1); |
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d9987dbdf91b
octave_struct::subsref: don't resize for simple x(idx) case
John W. Eaton <jwe@octave.org>
parents:
7651
diff
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170 %! assert (x(2).a.a, 2); |
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octave_struct::subsref: don't resize for simple x(idx) case
John W. Eaton <jwe@octave.org>
parents:
7651
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171 */ |
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d9987dbdf91b
octave_struct::subsref: don't resize for simple x(idx) case
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parents:
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172 |
| 3933 | 173 octave_value |
| 4513 | 174 octave_struct::numeric_conv (const Cell& val, |
| 3933 | 175 const std::string& type) |
| 176 { | |
| 177 octave_value retval; | |
| 178 | |
| 179 if (val.length () == 1) | |
| 180 { | |
| 181 retval = val(0); | |
| 182 | |
| 183 if (type.length () > 0 && type[0] == '.' && ! retval.is_map ()) | |
| 184 retval = Octave_map (); | |
| 185 } | |
| 186 else | |
| 187 gripe_invalid_index_for_assignment (); | |
| 188 | |
| 189 return retval; | |
| 190 } | |
| 191 | |
| 192 octave_value | |
| 4247 | 193 octave_struct::subsasgn (const std::string& type, |
| 4219 | 194 const std::list<octave_value_list>& idx, |
| 3933 | 195 const octave_value& rhs) |
| 2376 | 196 { |
| 3933 | 197 octave_value retval; |
| 198 | |
| 199 int n = type.length (); | |
| 200 | |
| 201 octave_value t_rhs = rhs; | |
| 202 | |
| 203 if (n > 1 && ! (type.length () == 2 && type[0] == '(' && type[1] == '.')) | |
| 204 { | |
| 205 switch (type[0]) | |
| 206 { | |
| 207 case '(': | |
| 208 { | |
| 209 if (type.length () > 1 && type[1] == '.') | |
| 210 { | |
| 4219 | 211 std::list<octave_value_list>::const_iterator p = idx.begin (); |
| 212 octave_value_list t_idx = *p; | |
| 3933 | 213 |
| 4513 | 214 octave_value_list key_idx = *++p; |
| 215 | |
| 216 assert (key_idx.length () == 1); | |
| 3933 | 217 |
| 4513 | 218 std::string key = key_idx(0).string_value (); |
| 3933 | 219 |
| 4513 | 220 octave_value u; |
| 3933 | 221 |
| 4513 | 222 if (! map.contains (key)) |
| 223 u = octave_value::empty_conv (type.substr (2), rhs); | |
| 224 else | |
| 225 { | |
| 4675 | 226 Cell map_val = map.contents (key); |
| 3933 | 227 |
| 4513 | 228 Cell map_elt = map_val.index (idx.front (), true); |
| 3933 | 229 |
| 4513 | 230 u = numeric_conv (map_elt, type.substr (2)); |
| 231 } | |
| 3933 | 232 |
| 4513 | 233 if (! error_state) |
| 234 { | |
| 235 std::list<octave_value_list> next_idx (idx); | |
| 3933 | 236 |
| 4513 | 237 // We handled two index elements, so subsasgn to |
| 238 // needs to skip both of them. | |
| 3933 | 239 |
| 4513 | 240 next_idx.erase (next_idx.begin ()); |
| 241 next_idx.erase (next_idx.begin ()); | |
| 4059 | 242 |
| 4513 | 243 u.make_unique (); |
| 244 | |
| 245 t_rhs = u.subsasgn (type.substr (2), next_idx, rhs); | |
| 3933 | 246 } |
| 247 } | |
| 248 else | |
| 249 gripe_invalid_index_for_assignment (); | |
| 250 } | |
| 251 break; | |
| 252 | |
| 253 case '.': | |
| 254 { | |
| 255 octave_value_list key_idx = idx.front (); | |
| 256 | |
| 257 assert (key_idx.length () == 1); | |
| 258 | |
| 259 std::string key = key_idx(0).string_value (); | |
| 260 | |
| 261 octave_value u; | |
| 262 | |
| 263 if (! map.contains (key)) | |
| 264 u = octave_value::empty_conv (type.substr (1), rhs); | |
| 265 else | |
| 266 { | |
| 4675 | 267 Cell map_val = map.contents (key); |
| 3933 | 268 |
| 269 u = numeric_conv (map_val, type.substr (1)); | |
| 270 } | |
| 271 | |
| 272 if (! error_state) | |
| 273 { | |
| 4219 | 274 std::list<octave_value_list> next_idx (idx); |
| 3933 | 275 |
| 4219 | 276 next_idx.erase (next_idx.begin ()); |
| 3933 | 277 |
| 4059 | 278 u.make_unique (); |
| 279 | |
| 3933 | 280 t_rhs = u.subsasgn (type.substr (1), next_idx, rhs); |
| 281 } | |
| 282 } | |
| 283 break; | |
| 284 | |
| 285 case '{': | |
| 286 gripe_invalid_index_type (type_name (), type[0]); | |
| 287 break; | |
| 288 | |
| 289 default: | |
| 290 panic_impossible (); | |
| 291 } | |
| 292 } | |
| 293 | |
| 294 if (! error_state) | |
| 295 { | |
| 296 switch (type[0]) | |
| 297 { | |
| 298 case '(': | |
| 299 { | |
| 300 if (n > 1 && type[1] == '.') | |
| 301 { | |
| 4219 | 302 std::list<octave_value_list>::const_iterator p = idx.begin (); |
| 303 octave_value_list key_idx = *++p; | |
| 3933 | 304 |
| 305 assert (key_idx.length () == 1); | |
| 306 | |
| 307 std::string key = key_idx(0).string_value (); | |
| 308 | |
| 309 if (! error_state) | |
| 310 { | |
| 4513 | 311 map.assign (idx.front (), key, t_rhs); |
| 3933 | 312 |
| 4513 | 313 if (! error_state) |
| 5759 | 314 { |
| 315 count++; | |
| 316 retval = octave_value (this); | |
| 317 } | |
| 3933 | 318 else |
| 4513 | 319 gripe_failed_assignment (); |
| 3933 | 320 } |
| 321 else | |
| 322 gripe_failed_assignment (); | |
| 323 } | |
| 324 else | |
| 4197 | 325 { |
| 5592 | 326 if (t_rhs.is_map()) |
| 4197 | 327 { |
| 5592 | 328 Octave_map rhs_map = t_rhs.map_value (); |
| 4197 | 329 |
| 330 if (! error_state) | |
| 5592 | 331 { |
| 332 map.assign (idx.front (), rhs_map); | |
| 333 | |
| 334 if (! error_state) | |
| 5759 | 335 { |
| 336 count++; | |
| 337 retval = octave_value (this); | |
| 338 } | |
| 5592 | 339 else |
| 340 gripe_failed_assignment (); | |
| 341 } | |
| 4197 | 342 else |
| 5592 | 343 error ("invalid structure assignment"); |
| 4197 | 344 } |
| 4513 | 345 else |
| 5592 | 346 { |
| 347 if (t_rhs.is_empty()) | |
| 348 { | |
| 349 map.maybe_delete_elements (idx.front()); | |
| 350 | |
| 351 if (! error_state) | |
| 5759 | 352 { |
| 353 count++; | |
| 354 retval = octave_value (this); | |
| 355 } | |
| 5592 | 356 else |
| 357 gripe_failed_assignment (); | |
| 358 } | |
| 359 else | |
| 360 error ("invalid structure assignment"); | |
| 361 } | |
| 4197 | 362 } |
| 3933 | 363 } |
| 364 break; | |
| 365 | |
| 366 case '.': | |
| 367 { | |
| 368 octave_value_list key_idx = idx.front (); | |
| 369 | |
| 370 assert (key_idx.length () == 1); | |
| 371 | |
| 372 std::string key = key_idx(0).string_value (); | |
| 373 | |
| 6833 | 374 if (t_rhs.is_cs_list ()) |
| 375 { | |
| 376 Cell tmp_cell = Cell (t_rhs.list_value ()); | |
| 377 | |
| 7040 | 378 // The shape of the RHS is irrelevant, we just want |
| 379 // the number of elements to agree and to preserve the | |
| 380 // shape of the left hand side of the assignment. | |
| 381 | |
| 382 if (numel () == tmp_cell.numel ()) | |
| 383 tmp_cell = tmp_cell.reshape (dims ()); | |
| 6833 | 384 |
| 385 map.assign (key, tmp_cell); | |
| 386 } | |
| 387 else | |
| 388 map.assign (key, t_rhs); | |
| 3933 | 389 |
| 390 if (! error_state) | |
| 5759 | 391 { |
| 392 count++; | |
| 393 retval = octave_value (this); | |
| 394 } | |
| 3933 | 395 else |
| 396 gripe_failed_assignment (); | |
| 397 } | |
| 398 break; | |
| 399 | |
| 400 case '{': | |
| 401 gripe_invalid_index_type (type_name (), type[0]); | |
| 402 break; | |
| 403 | |
| 404 default: | |
| 405 panic_impossible (); | |
| 406 } | |
| 407 } | |
| 408 else | |
| 409 gripe_failed_assignment (); | |
| 410 | |
| 411 return retval; | |
| 2376 | 412 } |
| 413 | |
| 7046 | 414 octave_value |
| 415 octave_struct::do_index_op (const octave_value_list& idx, bool resize_ok) | |
| 416 { | |
| 417 octave_value retval; | |
| 418 | |
| 419 octave_idx_type n_idx = idx.length (); | |
| 420 | |
| 421 int nd = map.ndims (); | |
| 422 | |
| 423 switch (n_idx) | |
| 424 { | |
| 425 case 0: | |
| 426 retval = map; | |
| 427 break; | |
| 428 | |
| 429 case 1: | |
| 430 { | |
| 431 idx_vector i = idx (0).index_vector (); | |
| 432 | |
| 433 if (! error_state) | |
| 434 retval = map.index (i, resize_ok, Cell::resize_fill_value ()); | |
| 435 } | |
| 436 break; | |
| 437 | |
| 438 default: | |
| 439 { | |
| 440 if (n_idx == 2 && nd == 2) | |
| 441 { | |
| 442 idx_vector i = idx (0).index_vector (); | |
| 443 | |
| 444 if (! error_state) | |
| 445 { | |
| 446 idx_vector j = idx (1).index_vector (); | |
| 447 | |
| 448 if (! error_state) | |
| 449 retval = map.index (i, j, resize_ok, | |
| 450 Cell::resize_fill_value ()); | |
| 451 } | |
| 452 } | |
| 453 else | |
| 454 { | |
| 455 Array<idx_vector> idx_vec (n_idx); | |
| 456 | |
| 457 for (octave_idx_type i = 0; i < n_idx; i++) | |
| 458 { | |
| 459 idx_vec(i) = idx(i).index_vector (); | |
| 460 | |
| 461 if (error_state) | |
| 462 break; | |
| 463 } | |
| 464 | |
| 465 if (! error_state) | |
| 466 retval = map.index (idx_vec, resize_ok, | |
| 467 Cell::resize_fill_value ()); | |
| 468 } | |
| 469 } | |
| 470 break; | |
| 471 } | |
| 472 | |
| 473 return retval; | |
| 474 } | |
| 475 | |
| 4791 | 476 size_t |
| 477 octave_struct::byte_size (void) const | |
| 478 { | |
| 479 // Neglect the size of the fieldnames. | |
| 480 | |
| 481 size_t retval = 0; | |
| 482 | |
| 483 for (Octave_map::const_iterator p = map.begin (); p != map.end (); p++) | |
| 484 { | |
| 485 std::string key = map.key (p); | |
| 486 | |
| 487 octave_value val = octave_value (map.contents (p)); | |
| 488 | |
| 489 retval += val.byte_size (); | |
| 490 } | |
| 491 | |
| 492 return retval; | |
| 493 } | |
| 494 | |
| 2376 | 495 void |
| 3523 | 496 octave_struct::print (std::ostream& os, bool) const |
| 2901 | 497 { |
| 498 print_raw (os); | |
| 499 } | |
| 500 | |
| 501 void | |
| 3523 | 502 octave_struct::print_raw (std::ostream& os, bool) const |
| 2376 | 503 { |
| 2985 | 504 unwind_protect::begin_frame ("octave_struct_print"); |
| 2376 | 505 |
| 506 unwind_protect_int (Vstruct_levels_to_print); | |
| 507 | |
| 3961 | 508 if (Vstruct_levels_to_print >= 0) |
| 2376 | 509 { |
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parents:
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diff
changeset
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510 bool print_keys_only = Vstruct_levels_to_print-- == 0; |
| 3961 | 511 |
| 2901 | 512 indent (os); |
| 513 os << "{"; | |
| 514 newline (os); | |
| 2376 | 515 |
| 2901 | 516 increment_indent_level (); |
| 2376 | 517 |
| 5598 | 518 octave_idx_type n = map.numel (); |
| 3932 | 519 |
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parents:
7460
diff
changeset
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520 if (n != 1 || print_keys_only) |
| 4604 | 521 { |
| 522 indent (os); | |
| 523 dim_vector dv = dims (); | |
| 524 os << dv.str () << " struct array containing the fields:"; | |
| 525 newline (os); | |
| 526 newline (os); | |
| 527 | |
| 528 increment_indent_level (); | |
| 529 } | |
| 530 | |
| 5880 | 531 string_vector key_list = map.keys (); |
| 532 | |
| 533 for (octave_idx_type i = 0; i < key_list.length (); i++) | |
| 2376 | 534 { |
| 5880 | 535 std::string key = key_list[i]; |
| 536 | |
| 537 Cell val = map.contents (key); | |
| 2376 | 538 |
| 4499 | 539 octave_value tmp = (n == 1) ? val(0) : octave_value (val, true); |
| 3961 | 540 |
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7571
c01ff6818f4c
simplify struct array printing
John W. Eaton <jwe@octave.org>
parents:
7460
diff
changeset
|
541 if (n != 1 || print_keys_only) |
| 3932 | 542 { |
| 3961 | 543 indent (os); |
| 4604 | 544 os << key; |
| 545 if (n == 1) | |
| 546 { | |
| 547 dim_vector dv = tmp.dims (); | |
| 548 os << ": " << dv.str () << " " << tmp.type_name (); | |
| 549 } | |
| 3961 | 550 newline (os); |
| 3932 | 551 } |
| 3961 | 552 else |
| 4121 | 553 tmp.print_with_name (os, key); |
| 2376 | 554 } |
| 555 | |
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simplify struct array printing
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parents:
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diff
changeset
|
556 if (n != 1 || print_keys_only) |
| 4604 | 557 decrement_indent_level (); |
| 558 | |
| 2901 | 559 decrement_indent_level (); |
| 2376 | 560 |
| 2901 | 561 indent (os); |
| 562 os << "}"; | |
| 563 newline (os); | |
| 2376 | 564 } |
| 565 else | |
| 2901 | 566 { |
| 3961 | 567 indent (os); |
| 568 os << "<structure>"; | |
| 2901 | 569 newline (os); |
| 570 } | |
| 2376 | 571 |
| 2985 | 572 unwind_protect::run_frame ("octave_struct_print"); |
| 2376 | 573 } |
| 574 | |
| 2901 | 575 bool |
| 3523 | 576 octave_struct::print_name_tag (std::ostream& os, const std::string& name) const |
| 2901 | 577 { |
| 3961 | 578 bool retval = false; |
| 579 | |
| 2901 | 580 indent (os); |
| 3961 | 581 |
| 582 if (Vstruct_levels_to_print < 0) | |
| 583 os << name << " = "; | |
| 584 else | |
| 585 { | |
| 586 os << name << " ="; | |
| 587 newline (os); | |
| 588 retval = true; | |
| 589 } | |
| 590 | |
| 591 return retval; | |
| 2901 | 592 } |
| 593 | |
| 4744 | 594 static bool |
| 595 scalar (const dim_vector& dims) | |
| 596 { | |
| 597 return dims.length () == 2 && dims (0) == 1 && dims (1) == 1; | |
| 598 } | |
| 599 | |
| 600 /* | |
| 601 %!shared x | |
| 602 %! x(1).a=1; x(2).a=2; x(1).b=3; x(2).b=3; | |
| 603 %!assert(struct('a',1,'b',3),x(1)) | |
| 5592 | 604 %!assert(isempty(x([]))) |
| 605 %!assert(isempty(struct('a',{},'b',{}))) | |
| 4744 | 606 %!assert(struct('a',{1,2},'b',{3,3}),x) |
| 607 %!assert(struct('a',{1,2},'b',3),x) | |
| 608 %!assert(struct('a',{1,2},'b',{3}),x) | |
| 609 %!assert(struct('b',3,'a',{1,2}),x) | |
| 610 %!assert(struct('b',{3},'a',{1,2}),x) | |
| 611 %!test x=struct([]); | |
| 612 %!assert(size(x),[0,0]); | |
| 613 %!assert(isstruct(x)); | |
| 614 %!assert(isempty(fieldnames(x))); | |
| 615 %!fail("struct('a',{1,2},'b',{1,2,3})","dimensions of parameter 2 do not match those of parameter 4") | |
| 5582 | 616 %!fail("struct(1,2,3,4)","struct expects alternating \"field\", VALUE pairs"); |
| 617 %!fail("struct('1',2,'3')","struct expects alternating \"field\", VALUE pairs"); | |
| 4744 | 618 */ |
| 619 | |
| 620 DEFUN (struct, args, , | |
| 621 "-*- texinfo -*-\n\ | |
| 622 @deftypefn {Built-in Function} {} struct (\"field\", @var{value}, \"field\", @var{value}, @dots{})\n\ | |
| 623 \n\ | |
| 624 Create a structure and initialize its value.\n\ | |
| 625 \n\ | |
| 626 If the values are cell arrays, create a structure array and initialize\n\ | |
| 627 its values. The dimensions of each cell array of values must match.\n\ | |
| 628 Singleton cells and non-cell values are repeated so that they fill\n\ | |
| 629 the entire array. If the cells are empty, create an empty structure\n\ | |
| 4911 | 630 array with the specified field names.\n\ |
| 631 @end deftypefn") | |
| 4744 | 632 { |
| 6946 | 633 octave_value retval; |
| 4744 | 634 |
| 635 int nargin = args.length (); | |
| 636 | |
| 5444 | 637 // struct ([]) returns an empty struct. |
| 638 | |
| 639 // struct (empty_matrix) returns an empty struct with the same | |
| 640 // dimensions as the empty matrix. | |
| 641 | |
| 642 // Note that struct () creates a 1x1 struct with no fields for | |
| 643 // compatibility with Matlab. | |
| 4744 | 644 |
| 6946 | 645 if ((nargin == 1 || nargin == 2) |
| 646 && args(0).is_empty () && args(0).is_real_matrix ()) | |
| 647 { | |
| 648 Cell fields; | |
| 649 | |
| 650 if (nargin == 2) | |
| 651 { | |
| 652 if (args(1).is_cellstr ()) | |
| 653 retval = Octave_map (args(0).dims (), args(1).cell_value ()); | |
| 654 else | |
| 655 error ("struct: expecting cell array of field names as second argument"); | |
| 656 } | |
| 657 else | |
| 658 retval = Octave_map (args(0).dims ()); | |
| 659 | |
| 660 return retval; | |
| 661 } | |
| 4744 | 662 |
| 663 // Check for "field", VALUE pairs. | |
| 664 | |
| 665 for (int i = 0; i < nargin; i += 2) | |
| 666 { | |
| 667 if (! args(i).is_string () || i + 1 >= nargin) | |
| 668 { | |
| 669 error ("struct expects alternating \"field\", VALUE pairs"); | |
| 670 return retval; | |
| 671 } | |
| 672 } | |
| 673 | |
| 674 // Check that the dimensions of the values correspond. | |
| 675 | |
| 676 dim_vector dims (1, 1); | |
| 677 | |
| 678 int first_dimensioned_value = 0; | |
| 679 | |
| 680 for (int i = 1; i < nargin; i += 2) | |
| 681 { | |
| 682 if (args(i).is_cell ()) | |
| 683 { | |
| 684 dim_vector argdims (args(i).dims ()); | |
| 685 | |
| 686 if (! scalar (argdims)) | |
| 687 { | |
| 688 if (! first_dimensioned_value) | |
| 689 { | |
| 690 dims = argdims; | |
| 691 first_dimensioned_value = i + 1; | |
| 692 } | |
| 693 else if (dims != argdims) | |
| 694 { | |
| 695 error ("struct: dimensions of parameter %d do not match those of parameter %d", | |
| 696 first_dimensioned_value, i+1); | |
| 697 return retval; | |
| 698 } | |
| 699 } | |
| 700 } | |
| 701 } | |
| 702 | |
| 703 // Create the return value. | |
| 704 | |
| 705 Octave_map map (dims); | |
| 706 | |
| 707 for (int i = 0; i < nargin; i+= 2) | |
| 708 { | |
| 709 // Get key. | |
| 710 | |
| 711 std::string key (args(i).string_value ()); | |
| 712 | |
| 713 if (error_state) | |
| 714 return retval; | |
| 715 | |
| 6811 | 716 if (! valid_identifier (key)) |
| 717 { | |
| 718 error ("struct: invalid structure field name `%s'", key.c_str ()); | |
| 719 return retval; | |
| 720 } | |
| 721 | |
| 4744 | 722 // Value may be v, { v }, or { v1, v2, ... } |
| 723 // In the first two cases, we need to create a cell array of | |
| 724 // the appropriate dimensions filled with v. In the last case, | |
| 725 // the cell array has already been determined to be of the | |
| 726 // correct dimensions. | |
| 727 | |
| 728 if (args(i+1).is_cell ()) | |
| 729 { | |
| 730 const Cell c (args(i+1).cell_value ()); | |
| 731 | |
| 732 if (error_state) | |
| 733 return retval; | |
| 734 | |
| 735 if (scalar (c.dims ())) | |
| 736 map.assign (key, Cell (dims, c(0))); | |
| 737 else | |
| 738 map.assign (key, c); | |
| 739 } | |
| 740 else | |
| 741 map.assign (key, Cell (dims, args(i+1))); | |
| 742 | |
| 743 if (error_state) | |
| 744 return retval; | |
| 745 } | |
| 6946 | 746 |
| 4744 | 747 return octave_value (map); |
| 748 } | |
| 749 | |
| 4358 | 750 DEFUN (isstruct, args, , |
| 751 "-*- texinfo -*-\n\ | |
| 752 @deftypefn {Built-in Function} {} isstruct (@var{expr})\n\ | |
| 753 Return 1 if the value of the expression @var{expr} is a structure.\n\ | |
| 754 @end deftypefn") | |
| 755 { | |
| 756 octave_value retval; | |
| 757 | |
| 758 if (args.length () == 1) | |
| 759 retval = args(0).is_map (); | |
| 760 else | |
| 5823 | 761 print_usage (); |
| 4358 | 762 |
| 763 return retval; | |
| 764 } | |
| 765 | |
| 766 DEFUN (fieldnames, args, , | |
| 767 "-*- texinfo -*-\n\ | |
| 768 @deftypefn {Built-in Function} {} fieldnames (@var{struct})\n\ | |
| 769 Return a cell array of strings naming the elements of the structure\n\ | |
| 770 @var{struct}. It is an error to call @code{fieldnames} with an\n\ | |
| 771 argument that is not a structure.\n\ | |
| 772 @end deftypefn") | |
| 773 { | |
| 774 octave_value retval; | |
| 775 | |
| 776 int nargin = args.length (); | |
| 777 | |
| 778 if (nargin == 1) | |
| 779 { | |
| 7336 | 780 octave_value arg = args(0); |
| 781 | |
| 782 if (arg.is_map () || arg.is_object ()) | |
| 4358 | 783 { |
| 7336 | 784 Octave_map m = arg.map_value (); |
| 785 | |
| 4744 | 786 string_vector keys = m.keys (); |
| 7336 | 787 |
| 4744 | 788 if (keys.length () == 0) |
| 789 retval = Cell (0, 1); | |
| 790 else | |
| 791 retval = Cell (m.keys ()); | |
| 4358 | 792 } |
| 793 else | |
| 794 gripe_wrong_type_arg ("fieldnames", args(0)); | |
| 795 } | |
| 796 else | |
| 5823 | 797 print_usage (); |
| 4358 | 798 |
| 799 return retval; | |
| 800 } | |
| 801 | |
| 802 DEFUN (isfield, args, , | |
| 803 "-*- texinfo -*-\n\ | |
| 804 @deftypefn {Built-in Function} {} isfield (@var{expr}, @var{name})\n\ | |
| 805 Return true if the expression @var{expr} is a structure and it includes an\n\ | |
| 806 element named @var{name}. The first argument must be a structure and\n\ | |
| 807 the second must be a string.\n\ | |
| 808 @end deftypefn") | |
| 809 { | |
| 810 octave_value retval; | |
| 811 | |
| 812 int nargin = args.length (); | |
| 813 | |
| 814 if (nargin == 2) | |
| 815 { | |
| 816 retval = false; | |
| 817 | |
| 5775 | 818 // FIXME -- should this work for all types that can do |
| 4358 | 819 // structure reference operations? |
| 820 | |
| 821 if (args(0).is_map () && args(1).is_string ()) | |
| 822 { | |
| 823 std::string key = args(1).string_value (); | |
| 824 | |
| 825 Octave_map m = args(0).map_value (); | |
| 826 | |
| 827 retval = m.contains (key) != 0; | |
| 828 } | |
| 829 } | |
| 830 else | |
| 5823 | 831 print_usage (); |
| 4358 | 832 |
| 833 return retval; | |
| 834 } | |
| 835 | |
| 4750 | 836 // Check that the dimensions of the input arguments are correct. |
| 837 | |
| 838 static bool | |
| 839 cell2struct_check_args (const dim_vector& c_dv, const dim_vector& f_dv, | |
| 840 bool is_cell, int dim) | |
| 841 { | |
| 4751 | 842 bool retval = true; |
| 4750 | 843 |
| 844 if (dim >= 0 && dim < c_dv.length ()) | |
| 845 { | |
| 846 if (is_cell) | |
| 847 { | |
| 4752 | 848 if (f_dv.numel () != c_dv(dim)) |
| 4750 | 849 { |
| 4751 | 850 error ("cell2struct: numel (FIELD) != size (CELL, DIM)"); |
| 4750 | 851 |
| 852 retval = false; | |
| 853 } | |
| 854 } | |
| 855 else | |
| 856 { | |
| 857 if (f_dv.length () > 2) | |
| 858 { | |
| 4751 | 859 error ("cell2struct: field array must be a 2-d matrix"); |
| 4750 | 860 |
| 861 retval = false; | |
| 862 } | |
| 863 else if (f_dv(0) != c_dv(dim)) | |
| 864 { | |
| 4751 | 865 error ("cell2struct: size (FIELD, 1) != length (C, DIM)"); |
| 4750 | 866 |
| 867 retval = false; | |
| 868 } | |
| 869 } | |
| 870 } | |
| 871 else | |
| 872 { | |
| 873 error ("cell2struct: DIM out of range"); | |
| 874 | |
| 875 retval = false; | |
| 876 } | |
| 877 | |
| 878 return retval; | |
| 879 } | |
| 880 | |
| 881 static void | |
| 5275 | 882 cell2struct_construct_idx (Array<octave_idx_type>& ra_idx1, |
| 883 const Array<octave_idx_type>& ra_idx2, | |
| 884 octave_idx_type dim, octave_idx_type fill_value) | |
| 4750 | 885 { |
| 5275 | 886 octave_idx_type iidx = 0; |
| 4750 | 887 |
| 5275 | 888 for (octave_idx_type idx = 0; idx < ra_idx1.length (); idx++) |
| 4750 | 889 { |
| 890 if (idx == dim) | |
| 891 ra_idx1.elem (idx) = fill_value; | |
| 892 else | |
| 893 ra_idx1.elem (idx) = ra_idx2(iidx++); | |
| 894 } | |
| 895 } | |
| 896 | |
| 897 DEFUN (cell2struct, args, , | |
| 898 "-*- texinfo -*-\n\ | |
| 4817 | 899 @deftypefn {Built-in Function} {} cell2struct (@var{cell}, @var{fields}, @var{dim})\n\ |
| 900 Convert @var{cell} to a structure. The number of fields in @var{fields}\n\ | |
| 901 must match the number of elements in @var{cell} along dimension @var{dim},\n\ | |
| 902 that is @code{numel (@var{fields}) == size (@var{cell}, @var{dim})}.\n\ | |
| 4750 | 903 \n\ |
| 904 @example\n\ | |
| 905 @group\n\ | |
| 7031 | 906 A = cell2struct (@{'Peter', 'Hannah', 'Robert';\n\ |
| 907 185, 170, 168@},\n\ | |
| 6519 | 908 @{'Name','Height'@}, 1);\n\ |
| 4750 | 909 A(1)\n\ |
| 910 @result{} ans =\n\ | |
| 4780 | 911 @{\n\ |
| 912 Height = 185\n\ | |
| 913 Name = Peter\n\ | |
| 914 @}\n\ | |
| 4750 | 915 \n\ |
| 916 @end group\n\ | |
| 917 @end example\n\ | |
| 918 @end deftypefn") | |
| 919 { | |
| 920 octave_value retval; | |
| 921 | |
| 4751 | 922 if (args.length () == 3) |
| 4750 | 923 { |
| 4751 | 924 Cell c = args(0).cell_value (); |
| 4750 | 925 |
| 4751 | 926 if (! error_state) |
| 4750 | 927 { |
| 4751 | 928 octave_value field = args(1); |
| 4750 | 929 |
| 4751 | 930 // Field is either cell or character matrix. |
| 4750 | 931 |
| 5775 | 932 // FIXME -- this could be simplified if we had |
| 4752 | 933 // cellstr and iscellstr functions available. |
| 934 | |
| 4751 | 935 bool field_is_cell = field.is_cell (); |
| 4750 | 936 |
| 4751 | 937 Cell field_cell; |
| 938 charMatrix field_char; | |
| 4750 | 939 |
| 940 if (field_is_cell) | |
| 4751 | 941 field_cell = field.cell_value (); |
| 942 else | |
| 943 field_char = field.char_matrix_value (); | |
| 944 | |
| 945 if (! error_state) | |
| 4750 | 946 { |
| 4751 | 947 // Retrieve the dimension value. |
| 948 | |
| 5775 | 949 // FIXME -- int_value () should print out the |
| 4751 | 950 // conversions it does to be Matlab compatible. |
| 951 | |
| 5275 | 952 octave_idx_type dim = args(2).int_value () - 1; |
| 4751 | 953 |
| 954 if (! error_state) | |
| 955 { | |
| 956 dim_vector c_dv = c.dims (); | |
| 957 dim_vector field_dv = field.dims (); | |
| 958 | |
| 959 if (cell2struct_check_args (c_dv, field_dv, field_is_cell, | |
| 960 dim)) | |
| 961 { | |
| 5275 | 962 octave_idx_type c_dv_length = c_dv.length (); |
| 4751 | 963 |
| 964 // Dimension vector for the Cell arrays to be | |
| 965 // put into the structure. | |
| 966 | |
| 967 dim_vector value_dv; | |
| 968 | |
| 969 // Initialize c_value_dv. | |
| 4750 | 970 |
| 4751 | 971 if (c_dv_length == 2) |
| 972 value_dv = dim_vector (1, 1); | |
| 973 else | |
| 974 value_dv.resize (c_dv_length - 1); | |
| 975 | |
| 5275 | 976 octave_idx_type idx_tmp = 0; |
| 4751 | 977 |
| 5275 | 978 for (octave_idx_type i = 0; i < c_dv_length; i++) |
| 4751 | 979 { |
| 980 if (i != dim) | |
| 981 value_dv.elem (idx_tmp++) = c_dv.elem (i); | |
| 982 } | |
| 983 | |
| 984 // All initializing is done, we can start moving | |
| 985 // values. | |
| 986 | |
| 987 Octave_map map; | |
| 988 | |
| 989 // If field is a cell array then we use all | |
| 990 // elements in array, on the other hand when | |
| 991 // field is a character array the number of | |
| 992 // elements is equals the number of rows. | |
| 993 | |
| 5275 | 994 octave_idx_type field_numel |
| 4751 | 995 = field_is_cell ? field_dv.numel (): field_dv(0); |
| 996 | |
| 997 // For matlab compatibility. | |
| 998 | |
| 999 if (field_numel == 0) | |
| 1000 map.reshape (dim_vector (0, 1)); | |
| 4750 | 1001 |
| 5275 | 1002 for (octave_idx_type i = 0; i < field_numel; i++) |
| 4751 | 1003 { |
| 1004 // Construct cell array which goes into the | |
| 1005 // structure together with the appropriate | |
| 1006 // field name. | |
| 1007 | |
| 1008 Cell c_value (value_dv); | |
| 1009 | |
| 5275 | 1010 Array<octave_idx_type> value_idx (value_dv.length (), 0); |
| 1011 Array<octave_idx_type> c_idx (c_dv_length, 0); | |
| 4751 | 1012 |
| 5275 | 1013 for (octave_idx_type j = 0; j < value_dv.numel (); j++) |
| 4751 | 1014 { |
| 1015 // Need to do this to construct the | |
| 1016 // appropriate idx for getting elements | |
| 1017 // from the original cell array. | |
| 1018 | |
| 1019 cell2struct_construct_idx (c_idx, value_idx, | |
| 1020 dim, i); | |
| 1021 | |
| 1022 c_value.elem (value_idx) = c.elem (c_idx); | |
| 1023 | |
| 1024 increment_index (value_idx, value_dv); | |
| 1025 } | |
| 1026 | |
| 1027 std::string field_str; | |
| 4750 | 1028 |
| 4751 | 1029 if (field_is_cell) |
| 1030 { | |
| 1031 // Matlab retrieves the field values | |
| 1032 // column by column. | |
| 1033 | |
| 1034 octave_value field_tmp = field_cell.elem (i); | |
| 1035 | |
| 1036 field_str = field_tmp.string_value (); | |
| 1037 | |
| 1038 if (error_state) | |
| 1039 { | |
| 1040 error ("cell2struct: fields have to be of type string"); | |
| 1041 break; | |
| 1042 } | |
| 1043 } | |
| 1044 else | |
| 1045 { | |
| 1046 field_str = field_char.row_as_string (i); | |
| 1047 | |
| 1048 if (error_state) | |
| 1049 return retval; | |
| 1050 } | |
| 1051 | |
| 6811 | 1052 if (! valid_identifier (field_str)) |
| 1053 { | |
| 1054 error ("cell2struct: invalid field name `%s'", | |
| 1055 field_str.c_str ()); | |
| 1056 break; | |
| 1057 } | |
| 1058 | |
| 4751 | 1059 map.reshape (value_dv); |
| 1060 | |
| 1061 map.assign (field_str, c_value); | |
| 1062 } | |
| 1063 | |
| 1064 if (! error_state) | |
| 1065 retval = map; | |
| 1066 } | |
| 4750 | 1067 } |
| 4751 | 1068 else |
| 1069 error ("cell2struct: expecting third argument to be an integer"); | |
| 4750 | 1070 } |
| 1071 else | |
| 4751 | 1072 error ("cell2struct: expecting second argument to be a cell or character array"); |
| 4750 | 1073 } |
| 4751 | 1074 else |
| 1075 error ("cell2struct: expecting first argument to be a cell array"); | |
| 4750 | 1076 } |
| 4751 | 1077 else |
| 5823 | 1078 print_usage (); |
| 4750 | 1079 |
| 1080 return retval; | |
| 1081 } | |
| 1082 | |
| 4817 | 1083 // So we can call Fcellstr directly. |
| 1084 extern octave_value_list Fcellstr (const octave_value_list& args, int); | |
| 1085 | |
| 1086 DEFUN (rmfield, args, , | |
| 1087 "-*- texinfo -*-\n\ | |
| 1088 @deftypefn {Built-in Function} {} rmfield (@var{s}, @var{f})\n\ | |
| 1089 Remove field @var{f} from the structure @var{s}. If @var{f} is a\n\ | |
| 1090 cell array of character strings or a character array, remove the\n\ | |
| 1091 named fields.\n\ | |
| 5642 | 1092 @seealso{cellstr, iscellstr, setfield}\n\ |
| 1093 @end deftypefn") | |
| 4817 | 1094 { |
| 1095 octave_value retval; | |
| 1096 | |
| 1097 int nargin = args.length (); | |
| 1098 | |
| 1099 if (nargin == 2) | |
| 1100 { | |
| 1101 Octave_map m = args(0).map_value (); | |
| 1102 | |
| 1103 octave_value_list fval = Fcellstr (args(1), 1); | |
| 1104 | |
| 1105 if (! error_state) | |
| 1106 { | |
| 1107 Cell fcell = fval(0).cell_value (); | |
| 1108 | |
| 1109 for (int i = 0; i < fcell.numel (); i++) | |
| 1110 { | |
| 1111 std::string key = fcell(i).string_value (); | |
| 1112 | |
| 1113 if (m.contains (key)) | |
| 1114 m.del (key); | |
| 1115 else | |
| 1116 { | |
| 1117 error ("rmfield: structure does not contain field %s", | |
| 1118 key.c_str ()); | |
| 1119 | |
| 1120 break; | |
| 1121 } | |
| 1122 } | |
| 1123 | |
| 1124 if (! error_state) | |
| 1125 retval = m; | |
| 1126 } | |
| 1127 } | |
| 1128 else | |
| 5823 | 1129 print_usage (); |
| 4817 | 1130 |
| 1131 return retval; | |
| 1132 } | |
| 1133 | |
| 1134 bool | |
| 6974 | 1135 octave_struct::save_ascii (std::ostream& os) |
| 4817 | 1136 { |
| 1137 Octave_map m = map_value (); | |
| 6639 | 1138 os << "# length: " << m.nfields () << "\n"; |
| 4817 | 1139 |
| 1140 Octave_map::iterator i = m.begin (); | |
| 1141 while (i != m.end ()) | |
| 1142 { | |
| 5341 | 1143 octave_value val = map.contents (i); |
| 4817 | 1144 |
| 6974 | 1145 bool b = save_ascii_data (os, val, m.key (i), false, 0); |
| 4817 | 1146 |
| 1147 if (! b) | |
| 1148 return os; | |
| 1149 | |
| 1150 i++; | |
| 1151 } | |
| 1152 | |
| 1153 return true; | |
| 1154 } | |
| 1155 | |
| 1156 bool | |
| 1157 octave_struct::load_ascii (std::istream& is) | |
| 1158 { | |
| 5275 | 1159 octave_idx_type len = 0; |
| 4817 | 1160 bool success = true; |
| 1161 | |
| 1162 if (extract_keyword (is, "length", len) && len >= 0) | |
| 1163 { | |
| 1164 if (len > 0) | |
| 1165 { | |
| 1166 Octave_map m (map); | |
| 1167 | |
| 5275 | 1168 for (octave_idx_type j = 0; j < len; j++) |
| 4817 | 1169 { |
| 1170 octave_value t2; | |
| 1171 bool dummy; | |
| 1172 | |
| 1173 // recurse to read cell elements | |
| 1174 std::string nm | |
| 5756 | 1175 = read_ascii_data (is, std::string (), dummy, t2, j); |
| 4817 | 1176 |
| 1177 if (!is) | |
| 1178 break; | |
| 1179 | |
| 6293 | 1180 Cell tcell = t2.is_cell () ? t2.cell_value () : Cell (t2); |
| 5433 | 1181 |
| 6293 | 1182 if (error_state) |
| 1183 { | |
| 1184 error ("load: internal error loading struct elements"); | |
| 1185 return false; | |
| 1186 } | |
| 5433 | 1187 |
| 6293 | 1188 m.assign (nm, tcell); |
| 4817 | 1189 } |
| 1190 | |
| 1191 if (is) | |
| 1192 map = m; | |
| 1193 else | |
| 1194 { | |
| 1195 error ("load: failed to load structure"); | |
| 1196 success = false; | |
| 1197 } | |
| 1198 } | |
| 1199 else if (len == 0 ) | |
| 6292 | 1200 map = Octave_map (dim_vector (1, 1)); |
| 4817 | 1201 else |
| 1202 panic_impossible (); | |
| 1203 } | |
| 1204 else { | |
| 1205 error ("load: failed to extract number of elements in structure"); | |
| 1206 success = false; | |
| 1207 } | |
| 1208 | |
| 1209 return success; | |
| 1210 } | |
| 1211 | |
| 1212 bool | |
| 1213 octave_struct::save_binary (std::ostream& os, bool& save_as_floats) | |
| 1214 { | |
| 1215 Octave_map m = map_value (); | |
| 1216 | |
| 6639 | 1217 int32_t len = m.nfields (); |
| 5760 | 1218 os.write (reinterpret_cast<char *> (&len), 4); |
| 4817 | 1219 |
| 1220 Octave_map::iterator i = m.begin (); | |
| 1221 while (i != m.end ()) | |
| 1222 { | |
| 5341 | 1223 octave_value val = map.contents (i); |
| 4817 | 1224 |
| 5341 | 1225 bool b = save_binary_data (os, val, m.key (i), "", 0, save_as_floats); |
| 4817 | 1226 |
| 1227 if (! b) | |
| 1228 return os; | |
| 1229 | |
| 1230 i++; | |
| 1231 } | |
| 1232 | |
| 1233 return true; | |
| 1234 } | |
| 1235 | |
| 1236 bool | |
| 1237 octave_struct::load_binary (std::istream& is, bool swap, | |
| 5760 | 1238 oct_mach_info::float_format fmt) |
| 4817 | 1239 { |
| 1240 bool success = true; | |
| 5828 | 1241 int32_t len; |
| 5760 | 1242 if (! is.read (reinterpret_cast<char *> (&len), 4)) |
| 4817 | 1243 return false; |
| 1244 if (swap) | |
| 4944 | 1245 swap_bytes<4> (&len); |
| 4817 | 1246 |
| 1247 if (len > 0) | |
| 1248 { | |
| 1249 Octave_map m (map); | |
| 1250 | |
| 5275 | 1251 for (octave_idx_type j = 0; j < len; j++) |
| 4817 | 1252 { |
| 1253 octave_value t2; | |
| 1254 bool dummy; | |
| 1255 std::string doc; | |
| 1256 | |
| 1257 // recurse to read cell elements | |
| 1258 std::string nm = read_binary_data (is, swap, fmt, std::string (), | |
| 1259 dummy, t2, doc); | |
| 1260 | |
| 1261 if (!is) | |
| 1262 break; | |
| 1263 | |
| 6293 | 1264 Cell tcell = t2.is_cell () ? t2.cell_value () : Cell (t2); |
| 5433 | 1265 |
| 6293 | 1266 if (error_state) |
| 1267 { | |
| 1268 error ("load: internal error loading struct elements"); | |
| 1269 return false; | |
| 1270 } | |
| 5433 | 1271 |
| 6293 | 1272 m.assign (nm, tcell); |
| 4817 | 1273 } |
| 1274 | |
| 1275 if (is) | |
| 1276 map = m; | |
| 1277 else | |
| 1278 { | |
| 1279 error ("load: failed to load structure"); | |
| 1280 success = false; | |
| 1281 } | |
| 1282 } | |
| 1283 else if (len == 0 ) | |
| 6292 | 1284 map = Octave_map (dim_vector (1, 1)); |
| 4817 | 1285 else |
| 1286 panic_impossible (); | |
| 1287 | |
| 1288 return success; | |
| 1289 } | |
| 1290 | |
| 1291 #if defined (HAVE_HDF5) | |
| 1292 | |
| 1293 bool | |
| 1294 octave_struct::save_hdf5 (hid_t loc_id, const char *name, bool save_as_floats) | |
| 1295 { | |
| 1296 hid_t data_hid = -1; | |
| 1297 | |
| 1298 data_hid = H5Gcreate (loc_id, name, 0); | |
| 1299 if (data_hid < 0) return false; | |
| 1300 | |
| 1301 // recursively add each element of the structure to this group | |
| 1302 Octave_map m = map_value (); | |
| 1303 Octave_map::iterator i = m.begin (); | |
| 1304 while (i != m.end ()) | |
| 1305 { | |
| 5341 | 1306 octave_value val = map.contents (i); |
| 4817 | 1307 |
| 5341 | 1308 bool retval2 = add_hdf5_data (data_hid, val, m.key (i), "", false, |
| 4817 | 1309 save_as_floats); |
| 1310 | |
| 1311 if (! retval2) | |
| 1312 break; | |
| 1313 | |
| 1314 i++; | |
| 1315 } | |
| 1316 | |
| 1317 H5Gclose (data_hid); | |
| 4837 | 1318 |
| 4817 | 1319 return true; |
| 1320 } | |
| 1321 | |
| 1322 bool | |
| 1323 octave_struct::load_hdf5 (hid_t loc_id, const char *name, | |
| 1324 bool have_h5giterate_bug) | |
| 1325 { | |
| 1326 bool retval = false; | |
| 1327 | |
| 1328 hdf5_callback_data dsub; | |
| 1329 | |
| 1330 herr_t retval2 = 0; | |
| 6292 | 1331 Octave_map m (dim_vector (1, 1)); |
| 4817 | 1332 int current_item = 0; |
| 1333 #ifdef HAVE_H5GGET_NUM_OBJS | |
| 1334 hsize_t num_obj = 0; | |
| 5060 | 1335 hid_t group_id = H5Gopen (loc_id, name); |
| 1336 H5Gget_num_objs (group_id, &num_obj); | |
| 1337 H5Gclose (group_id); | |
| 4817 | 1338 |
| 1339 while (current_item < static_cast<int> (num_obj) | |
| 1340 && (retval2 = H5Giterate (loc_id, name, ¤t_item, | |
| 1341 hdf5_read_next_data, &dsub)) > 0) | |
| 1342 #else | |
| 1343 while ((retval2 = H5Giterate (loc_id, name, ¤t_item, | |
| 1344 hdf5_read_next_data, &dsub)) > 0) | |
| 1345 #endif | |
| 1346 { | |
| 5342 | 1347 octave_value t2 = dsub.tc; |
| 1348 | |
| 6293 | 1349 Cell tcell = t2.is_cell () ? t2.cell_value () : Cell (t2); |
| 5433 | 1350 |
| 6293 | 1351 if (error_state) |
| 1352 { | |
| 1353 error ("load: internal error loading struct elements"); | |
| 1354 return false; | |
| 1355 } | |
| 5433 | 1356 |
| 6293 | 1357 m.assign (dsub.name, tcell); |
| 5336 | 1358 |
| 4817 | 1359 if (have_h5giterate_bug) |
| 1360 current_item++; // H5Giterate returned the last index processed | |
| 1361 } | |
| 1362 | |
| 1363 if (retval2 >= 0) | |
| 1364 { | |
| 1365 map = m; | |
| 1366 retval = true; | |
| 1367 } | |
| 1368 | |
| 1369 return retval; | |
| 1370 } | |
| 1371 | |
| 4687 | 1372 #endif |
| 1373 | |
| 5900 | 1374 mxArray * |
| 1375 octave_struct::as_mxArray (void) const | |
| 1376 { | |
| 1377 int nf = nfields (); | |
| 1378 string_vector kv = map_keys (); | |
| 6065 | 1379 |
| 1380 OCTAVE_LOCAL_BUFFER (const char *, f, nf); | |
| 1381 | |
| 5900 | 1382 for (int i = 0; i < nf; i++) |
| 6065 | 1383 f[i] = kv[i].c_str (); |
| 5900 | 1384 |
| 1385 mxArray *retval = new mxArray (dims (), nf, f); | |
| 1386 | |
| 1387 mxArray **elts = static_cast<mxArray **> (retval->get_data ()); | |
| 1388 | |
| 6686 | 1389 mwSize nel = numel (); |
| 5900 | 1390 |
| 6686 | 1391 mwSize ntot = nf * nel; |
| 5900 | 1392 |
| 1393 for (int i = 0; i < nf; i++) | |
| 1394 { | |
| 1395 Cell c = map.contents (kv[i]); | |
| 1396 | |
| 1397 const octave_value *p = c.data (); | |
| 1398 | |
| 6686 | 1399 mwIndex k = 0; |
| 1400 for (mwIndex j = i; j < ntot; j += nf) | |
| 5900 | 1401 elts[j] = new mxArray (p[k++]); |
| 1402 } | |
| 1403 | |
| 1404 return retval; | |
| 1405 } | |
| 1406 | |
| 2376 | 1407 /* |
| 1408 ;;; Local Variables: *** | |
| 1409 ;;; mode: C++ *** | |
| 1410 ;;; End: *** | |
| 1411 */ |