Mercurial > hg > octave-lyh
annotate src/ov-struct.cc @ 8150:283989f2da9b
make null assignment matlab compatible
| author | Jaroslav Hajek <highegg@gmail.com> |
|---|---|
| date | Fri, 26 Sep 2008 11:52:01 -0400 |
| parents | d9987dbdf91b |
| children | 25bc2d31e1bf |
| 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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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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160 retval = retval(0).next_subsref (nargout, type, idx, skip); |
| 3933 | 161 |
| 162 return retval; | |
| 163 } | |
| 164 | |
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165 /* |
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166 %!test |
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167 %! x(1).a.a = 1; x(2).a.a = 2; |
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168 %! assert (size (x), [1, 2]); |
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169 %! assert (x(1).a.a, 1); |
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170 %! assert (x(2).a.a, 2); |
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171 */ |
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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 { |
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347 if (t_rhs.is_null_value()) |
| 5592 | 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 | |
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388 // Regularize a null matrix if stored into a struct component. |
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parents:
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389 map.assign (key, t_rhs.non_null_value ()); |
| 3933 | 390 |
| 391 if (! error_state) | |
| 5759 | 392 { |
| 393 count++; | |
| 394 retval = octave_value (this); | |
| 395 } | |
| 3933 | 396 else |
| 397 gripe_failed_assignment (); | |
| 398 } | |
| 399 break; | |
| 400 | |
| 401 case '{': | |
| 402 gripe_invalid_index_type (type_name (), type[0]); | |
| 403 break; | |
| 404 | |
| 405 default: | |
| 406 panic_impossible (); | |
| 407 } | |
| 408 } | |
| 409 else | |
| 410 gripe_failed_assignment (); | |
| 411 | |
| 412 return retval; | |
| 2376 | 413 } |
| 414 | |
| 7046 | 415 octave_value |
| 416 octave_struct::do_index_op (const octave_value_list& idx, bool resize_ok) | |
| 417 { | |
| 418 octave_value retval; | |
| 419 | |
| 420 octave_idx_type n_idx = idx.length (); | |
| 421 | |
| 422 int nd = map.ndims (); | |
| 423 | |
| 424 switch (n_idx) | |
| 425 { | |
| 426 case 0: | |
| 427 retval = map; | |
| 428 break; | |
| 429 | |
| 430 case 1: | |
| 431 { | |
| 432 idx_vector i = idx (0).index_vector (); | |
| 433 | |
| 434 if (! error_state) | |
| 435 retval = map.index (i, resize_ok, Cell::resize_fill_value ()); | |
| 436 } | |
| 437 break; | |
| 438 | |
| 439 default: | |
| 440 { | |
| 441 if (n_idx == 2 && nd == 2) | |
| 442 { | |
| 443 idx_vector i = idx (0).index_vector (); | |
| 444 | |
| 445 if (! error_state) | |
| 446 { | |
| 447 idx_vector j = idx (1).index_vector (); | |
| 448 | |
| 449 if (! error_state) | |
| 450 retval = map.index (i, j, resize_ok, | |
| 451 Cell::resize_fill_value ()); | |
| 452 } | |
| 453 } | |
| 454 else | |
| 455 { | |
| 456 Array<idx_vector> idx_vec (n_idx); | |
| 457 | |
| 458 for (octave_idx_type i = 0; i < n_idx; i++) | |
| 459 { | |
| 460 idx_vec(i) = idx(i).index_vector (); | |
| 461 | |
| 462 if (error_state) | |
| 463 break; | |
| 464 } | |
| 465 | |
| 466 if (! error_state) | |
| 467 retval = map.index (idx_vec, resize_ok, | |
| 468 Cell::resize_fill_value ()); | |
| 469 } | |
| 470 } | |
| 471 break; | |
| 472 } | |
| 473 | |
| 474 return retval; | |
| 475 } | |
| 476 | |
| 4791 | 477 size_t |
| 478 octave_struct::byte_size (void) const | |
| 479 { | |
| 480 // Neglect the size of the fieldnames. | |
| 481 | |
| 482 size_t retval = 0; | |
| 483 | |
| 484 for (Octave_map::const_iterator p = map.begin (); p != map.end (); p++) | |
| 485 { | |
| 486 std::string key = map.key (p); | |
| 487 | |
| 488 octave_value val = octave_value (map.contents (p)); | |
| 489 | |
| 490 retval += val.byte_size (); | |
| 491 } | |
| 492 | |
| 493 return retval; | |
| 494 } | |
| 495 | |
| 2376 | 496 void |
| 3523 | 497 octave_struct::print (std::ostream& os, bool) const |
| 2901 | 498 { |
| 499 print_raw (os); | |
| 500 } | |
| 501 | |
| 502 void | |
| 3523 | 503 octave_struct::print_raw (std::ostream& os, bool) const |
| 2376 | 504 { |
| 2985 | 505 unwind_protect::begin_frame ("octave_struct_print"); |
| 2376 | 506 |
| 507 unwind_protect_int (Vstruct_levels_to_print); | |
| 508 | |
| 3961 | 509 if (Vstruct_levels_to_print >= 0) |
| 2376 | 510 { |
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511 bool print_keys_only = Vstruct_levels_to_print-- == 0; |
| 3961 | 512 |
| 2901 | 513 indent (os); |
| 514 os << "{"; | |
| 515 newline (os); | |
| 2376 | 516 |
| 2901 | 517 increment_indent_level (); |
| 2376 | 518 |
| 5598 | 519 octave_idx_type n = map.numel (); |
| 3932 | 520 |
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521 if (n != 1 || print_keys_only) |
| 4604 | 522 { |
| 523 indent (os); | |
| 524 dim_vector dv = dims (); | |
| 525 os << dv.str () << " struct array containing the fields:"; | |
| 526 newline (os); | |
| 527 newline (os); | |
| 528 | |
| 529 increment_indent_level (); | |
| 530 } | |
| 531 | |
| 5880 | 532 string_vector key_list = map.keys (); |
| 533 | |
| 534 for (octave_idx_type i = 0; i < key_list.length (); i++) | |
| 2376 | 535 { |
| 5880 | 536 std::string key = key_list[i]; |
| 537 | |
| 538 Cell val = map.contents (key); | |
| 2376 | 539 |
| 4499 | 540 octave_value tmp = (n == 1) ? val(0) : octave_value (val, true); |
| 3961 | 541 |
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542 if (n != 1 || print_keys_only) |
| 3932 | 543 { |
| 3961 | 544 indent (os); |
| 4604 | 545 os << key; |
| 546 if (n == 1) | |
| 547 { | |
| 548 dim_vector dv = tmp.dims (); | |
| 549 os << ": " << dv.str () << " " << tmp.type_name (); | |
| 550 } | |
| 3961 | 551 newline (os); |
| 3932 | 552 } |
| 3961 | 553 else |
| 4121 | 554 tmp.print_with_name (os, key); |
| 2376 | 555 } |
| 556 | |
|
7571
c01ff6818f4c
simplify struct array printing
John W. Eaton <jwe@octave.org>
parents:
7460
diff
changeset
|
557 if (n != 1 || print_keys_only) |
| 4604 | 558 decrement_indent_level (); |
| 559 | |
| 2901 | 560 decrement_indent_level (); |
| 2376 | 561 |
| 2901 | 562 indent (os); |
| 563 os << "}"; | |
| 564 newline (os); | |
| 2376 | 565 } |
| 566 else | |
| 2901 | 567 { |
| 3961 | 568 indent (os); |
| 569 os << "<structure>"; | |
| 2901 | 570 newline (os); |
| 571 } | |
| 2376 | 572 |
| 2985 | 573 unwind_protect::run_frame ("octave_struct_print"); |
| 2376 | 574 } |
| 575 | |
| 2901 | 576 bool |
| 3523 | 577 octave_struct::print_name_tag (std::ostream& os, const std::string& name) const |
| 2901 | 578 { |
| 3961 | 579 bool retval = false; |
| 580 | |
| 2901 | 581 indent (os); |
| 3961 | 582 |
| 583 if (Vstruct_levels_to_print < 0) | |
| 584 os << name << " = "; | |
| 585 else | |
| 586 { | |
| 587 os << name << " ="; | |
| 588 newline (os); | |
| 589 retval = true; | |
| 590 } | |
| 591 | |
| 592 return retval; | |
| 2901 | 593 } |
| 594 | |
| 4744 | 595 static bool |
| 596 scalar (const dim_vector& dims) | |
| 597 { | |
| 598 return dims.length () == 2 && dims (0) == 1 && dims (1) == 1; | |
| 599 } | |
| 600 | |
| 601 /* | |
| 602 %!shared x | |
| 603 %! x(1).a=1; x(2).a=2; x(1).b=3; x(2).b=3; | |
| 604 %!assert(struct('a',1,'b',3),x(1)) | |
| 5592 | 605 %!assert(isempty(x([]))) |
| 606 %!assert(isempty(struct('a',{},'b',{}))) | |
| 4744 | 607 %!assert(struct('a',{1,2},'b',{3,3}),x) |
| 608 %!assert(struct('a',{1,2},'b',3),x) | |
| 609 %!assert(struct('a',{1,2},'b',{3}),x) | |
| 610 %!assert(struct('b',3,'a',{1,2}),x) | |
| 611 %!assert(struct('b',{3},'a',{1,2}),x) | |
| 612 %!test x=struct([]); | |
| 613 %!assert(size(x),[0,0]); | |
| 614 %!assert(isstruct(x)); | |
| 615 %!assert(isempty(fieldnames(x))); | |
| 616 %!fail("struct('a',{1,2},'b',{1,2,3})","dimensions of parameter 2 do not match those of parameter 4") | |
| 5582 | 617 %!fail("struct(1,2,3,4)","struct expects alternating \"field\", VALUE pairs"); |
| 618 %!fail("struct('1',2,'3')","struct expects alternating \"field\", VALUE pairs"); | |
| 4744 | 619 */ |
| 620 | |
| 621 DEFUN (struct, args, , | |
| 622 "-*- texinfo -*-\n\ | |
| 623 @deftypefn {Built-in Function} {} struct (\"field\", @var{value}, \"field\", @var{value}, @dots{})\n\ | |
| 624 \n\ | |
| 625 Create a structure and initialize its value.\n\ | |
| 626 \n\ | |
| 627 If the values are cell arrays, create a structure array and initialize\n\ | |
| 628 its values. The dimensions of each cell array of values must match.\n\ | |
| 629 Singleton cells and non-cell values are repeated so that they fill\n\ | |
| 630 the entire array. If the cells are empty, create an empty structure\n\ | |
| 4911 | 631 array with the specified field names.\n\ |
| 632 @end deftypefn") | |
| 4744 | 633 { |
| 6946 | 634 octave_value retval; |
| 4744 | 635 |
| 636 int nargin = args.length (); | |
| 637 | |
| 5444 | 638 // struct ([]) returns an empty struct. |
| 639 | |
| 640 // struct (empty_matrix) returns an empty struct with the same | |
| 641 // dimensions as the empty matrix. | |
| 642 | |
| 643 // Note that struct () creates a 1x1 struct with no fields for | |
| 644 // compatibility with Matlab. | |
| 4744 | 645 |
| 6946 | 646 if ((nargin == 1 || nargin == 2) |
| 647 && args(0).is_empty () && args(0).is_real_matrix ()) | |
| 648 { | |
| 649 Cell fields; | |
| 650 | |
| 651 if (nargin == 2) | |
| 652 { | |
| 653 if (args(1).is_cellstr ()) | |
| 654 retval = Octave_map (args(0).dims (), args(1).cell_value ()); | |
| 655 else | |
| 656 error ("struct: expecting cell array of field names as second argument"); | |
| 657 } | |
| 658 else | |
| 659 retval = Octave_map (args(0).dims ()); | |
| 660 | |
| 661 return retval; | |
| 662 } | |
| 4744 | 663 |
| 664 // Check for "field", VALUE pairs. | |
| 665 | |
| 666 for (int i = 0; i < nargin; i += 2) | |
| 667 { | |
| 668 if (! args(i).is_string () || i + 1 >= nargin) | |
| 669 { | |
| 670 error ("struct expects alternating \"field\", VALUE pairs"); | |
| 671 return retval; | |
| 672 } | |
| 673 } | |
| 674 | |
| 675 // Check that the dimensions of the values correspond. | |
| 676 | |
| 677 dim_vector dims (1, 1); | |
| 678 | |
| 679 int first_dimensioned_value = 0; | |
| 680 | |
| 681 for (int i = 1; i < nargin; i += 2) | |
| 682 { | |
| 683 if (args(i).is_cell ()) | |
| 684 { | |
| 685 dim_vector argdims (args(i).dims ()); | |
| 686 | |
| 687 if (! scalar (argdims)) | |
| 688 { | |
| 689 if (! first_dimensioned_value) | |
| 690 { | |
| 691 dims = argdims; | |
| 692 first_dimensioned_value = i + 1; | |
| 693 } | |
| 694 else if (dims != argdims) | |
| 695 { | |
| 696 error ("struct: dimensions of parameter %d do not match those of parameter %d", | |
| 697 first_dimensioned_value, i+1); | |
| 698 return retval; | |
| 699 } | |
| 700 } | |
| 701 } | |
| 702 } | |
| 703 | |
| 704 // Create the return value. | |
| 705 | |
| 706 Octave_map map (dims); | |
| 707 | |
| 708 for (int i = 0; i < nargin; i+= 2) | |
| 709 { | |
| 710 // Get key. | |
| 711 | |
| 712 std::string key (args(i).string_value ()); | |
| 713 | |
| 714 if (error_state) | |
| 715 return retval; | |
| 716 | |
| 6811 | 717 if (! valid_identifier (key)) |
| 718 { | |
| 719 error ("struct: invalid structure field name `%s'", key.c_str ()); | |
| 720 return retval; | |
| 721 } | |
| 722 | |
| 4744 | 723 // Value may be v, { v }, or { v1, v2, ... } |
| 724 // In the first two cases, we need to create a cell array of | |
| 725 // the appropriate dimensions filled with v. In the last case, | |
| 726 // the cell array has already been determined to be of the | |
| 727 // correct dimensions. | |
| 728 | |
| 729 if (args(i+1).is_cell ()) | |
| 730 { | |
| 731 const Cell c (args(i+1).cell_value ()); | |
| 732 | |
| 733 if (error_state) | |
| 734 return retval; | |
| 735 | |
| 736 if (scalar (c.dims ())) | |
| 737 map.assign (key, Cell (dims, c(0))); | |
| 738 else | |
| 739 map.assign (key, c); | |
| 740 } | |
| 741 else | |
| 742 map.assign (key, Cell (dims, args(i+1))); | |
| 743 | |
| 744 if (error_state) | |
| 745 return retval; | |
| 746 } | |
| 6946 | 747 |
| 4744 | 748 return octave_value (map); |
| 749 } | |
| 750 | |
| 4358 | 751 DEFUN (isstruct, args, , |
| 752 "-*- texinfo -*-\n\ | |
| 753 @deftypefn {Built-in Function} {} isstruct (@var{expr})\n\ | |
| 754 Return 1 if the value of the expression @var{expr} is a structure.\n\ | |
| 755 @end deftypefn") | |
| 756 { | |
| 757 octave_value retval; | |
| 758 | |
| 759 if (args.length () == 1) | |
| 760 retval = args(0).is_map (); | |
| 761 else | |
| 5823 | 762 print_usage (); |
| 4358 | 763 |
| 764 return retval; | |
| 765 } | |
| 766 | |
| 767 DEFUN (fieldnames, args, , | |
| 768 "-*- texinfo -*-\n\ | |
| 769 @deftypefn {Built-in Function} {} fieldnames (@var{struct})\n\ | |
| 770 Return a cell array of strings naming the elements of the structure\n\ | |
| 771 @var{struct}. It is an error to call @code{fieldnames} with an\n\ | |
| 772 argument that is not a structure.\n\ | |
| 773 @end deftypefn") | |
| 774 { | |
| 775 octave_value retval; | |
| 776 | |
| 777 int nargin = args.length (); | |
| 778 | |
| 779 if (nargin == 1) | |
| 780 { | |
| 7336 | 781 octave_value arg = args(0); |
| 782 | |
| 783 if (arg.is_map () || arg.is_object ()) | |
| 4358 | 784 { |
| 7336 | 785 Octave_map m = arg.map_value (); |
| 786 | |
| 4744 | 787 string_vector keys = m.keys (); |
| 7336 | 788 |
| 4744 | 789 if (keys.length () == 0) |
| 790 retval = Cell (0, 1); | |
| 791 else | |
| 792 retval = Cell (m.keys ()); | |
| 4358 | 793 } |
| 794 else | |
| 795 gripe_wrong_type_arg ("fieldnames", args(0)); | |
| 796 } | |
| 797 else | |
| 5823 | 798 print_usage (); |
| 4358 | 799 |
| 800 return retval; | |
| 801 } | |
| 802 | |
| 803 DEFUN (isfield, args, , | |
| 804 "-*- texinfo -*-\n\ | |
| 805 @deftypefn {Built-in Function} {} isfield (@var{expr}, @var{name})\n\ | |
| 806 Return true if the expression @var{expr} is a structure and it includes an\n\ | |
| 807 element named @var{name}. The first argument must be a structure and\n\ | |
| 808 the second must be a string.\n\ | |
| 809 @end deftypefn") | |
| 810 { | |
| 811 octave_value retval; | |
| 812 | |
| 813 int nargin = args.length (); | |
| 814 | |
| 815 if (nargin == 2) | |
| 816 { | |
| 817 retval = false; | |
| 818 | |
| 5775 | 819 // FIXME -- should this work for all types that can do |
| 4358 | 820 // structure reference operations? |
| 821 | |
| 822 if (args(0).is_map () && args(1).is_string ()) | |
| 823 { | |
| 824 std::string key = args(1).string_value (); | |
| 825 | |
| 826 Octave_map m = args(0).map_value (); | |
| 827 | |
| 828 retval = m.contains (key) != 0; | |
| 829 } | |
| 830 } | |
| 831 else | |
| 5823 | 832 print_usage (); |
| 4358 | 833 |
| 834 return retval; | |
| 835 } | |
| 836 | |
| 4750 | 837 // Check that the dimensions of the input arguments are correct. |
| 838 | |
| 839 static bool | |
| 840 cell2struct_check_args (const dim_vector& c_dv, const dim_vector& f_dv, | |
| 841 bool is_cell, int dim) | |
| 842 { | |
| 4751 | 843 bool retval = true; |
| 4750 | 844 |
| 845 if (dim >= 0 && dim < c_dv.length ()) | |
| 846 { | |
| 847 if (is_cell) | |
| 848 { | |
| 4752 | 849 if (f_dv.numel () != c_dv(dim)) |
| 4750 | 850 { |
| 4751 | 851 error ("cell2struct: numel (FIELD) != size (CELL, DIM)"); |
| 4750 | 852 |
| 853 retval = false; | |
| 854 } | |
| 855 } | |
| 856 else | |
| 857 { | |
| 858 if (f_dv.length () > 2) | |
| 859 { | |
| 4751 | 860 error ("cell2struct: field array must be a 2-d matrix"); |
| 4750 | 861 |
| 862 retval = false; | |
| 863 } | |
| 864 else if (f_dv(0) != c_dv(dim)) | |
| 865 { | |
| 4751 | 866 error ("cell2struct: size (FIELD, 1) != length (C, DIM)"); |
| 4750 | 867 |
| 868 retval = false; | |
| 869 } | |
| 870 } | |
| 871 } | |
| 872 else | |
| 873 { | |
| 874 error ("cell2struct: DIM out of range"); | |
| 875 | |
| 876 retval = false; | |
| 877 } | |
| 878 | |
| 879 return retval; | |
| 880 } | |
| 881 | |
| 882 static void | |
| 5275 | 883 cell2struct_construct_idx (Array<octave_idx_type>& ra_idx1, |
| 884 const Array<octave_idx_type>& ra_idx2, | |
| 885 octave_idx_type dim, octave_idx_type fill_value) | |
| 4750 | 886 { |
| 5275 | 887 octave_idx_type iidx = 0; |
| 4750 | 888 |
| 5275 | 889 for (octave_idx_type idx = 0; idx < ra_idx1.length (); idx++) |
| 4750 | 890 { |
| 891 if (idx == dim) | |
| 892 ra_idx1.elem (idx) = fill_value; | |
| 893 else | |
| 894 ra_idx1.elem (idx) = ra_idx2(iidx++); | |
| 895 } | |
| 896 } | |
| 897 | |
| 898 DEFUN (cell2struct, args, , | |
| 899 "-*- texinfo -*-\n\ | |
| 4817 | 900 @deftypefn {Built-in Function} {} cell2struct (@var{cell}, @var{fields}, @var{dim})\n\ |
| 901 Convert @var{cell} to a structure. The number of fields in @var{fields}\n\ | |
| 902 must match the number of elements in @var{cell} along dimension @var{dim},\n\ | |
| 903 that is @code{numel (@var{fields}) == size (@var{cell}, @var{dim})}.\n\ | |
| 4750 | 904 \n\ |
| 905 @example\n\ | |
| 906 @group\n\ | |
| 7031 | 907 A = cell2struct (@{'Peter', 'Hannah', 'Robert';\n\ |
| 908 185, 170, 168@},\n\ | |
| 6519 | 909 @{'Name','Height'@}, 1);\n\ |
| 4750 | 910 A(1)\n\ |
| 911 @result{} ans =\n\ | |
| 4780 | 912 @{\n\ |
| 913 Height = 185\n\ | |
| 914 Name = Peter\n\ | |
| 915 @}\n\ | |
| 4750 | 916 \n\ |
| 917 @end group\n\ | |
| 918 @end example\n\ | |
| 919 @end deftypefn") | |
| 920 { | |
| 921 octave_value retval; | |
| 922 | |
| 4751 | 923 if (args.length () == 3) |
| 4750 | 924 { |
| 4751 | 925 Cell c = args(0).cell_value (); |
| 4750 | 926 |
| 4751 | 927 if (! error_state) |
| 4750 | 928 { |
| 4751 | 929 octave_value field = args(1); |
| 4750 | 930 |
| 4751 | 931 // Field is either cell or character matrix. |
| 4750 | 932 |
| 5775 | 933 // FIXME -- this could be simplified if we had |
| 4752 | 934 // cellstr and iscellstr functions available. |
| 935 | |
| 4751 | 936 bool field_is_cell = field.is_cell (); |
| 4750 | 937 |
| 4751 | 938 Cell field_cell; |
| 939 charMatrix field_char; | |
| 4750 | 940 |
| 941 if (field_is_cell) | |
| 4751 | 942 field_cell = field.cell_value (); |
| 943 else | |
| 944 field_char = field.char_matrix_value (); | |
| 945 | |
| 946 if (! error_state) | |
| 4750 | 947 { |
| 4751 | 948 // Retrieve the dimension value. |
| 949 | |
| 5775 | 950 // FIXME -- int_value () should print out the |
| 4751 | 951 // conversions it does to be Matlab compatible. |
| 952 | |
| 5275 | 953 octave_idx_type dim = args(2).int_value () - 1; |
| 4751 | 954 |
| 955 if (! error_state) | |
| 956 { | |
| 957 dim_vector c_dv = c.dims (); | |
| 958 dim_vector field_dv = field.dims (); | |
| 959 | |
| 960 if (cell2struct_check_args (c_dv, field_dv, field_is_cell, | |
| 961 dim)) | |
| 962 { | |
| 5275 | 963 octave_idx_type c_dv_length = c_dv.length (); |
| 4751 | 964 |
| 965 // Dimension vector for the Cell arrays to be | |
| 966 // put into the structure. | |
| 967 | |
| 968 dim_vector value_dv; | |
| 969 | |
| 970 // Initialize c_value_dv. | |
| 4750 | 971 |
| 4751 | 972 if (c_dv_length == 2) |
| 973 value_dv = dim_vector (1, 1); | |
| 974 else | |
| 975 value_dv.resize (c_dv_length - 1); | |
| 976 | |
| 5275 | 977 octave_idx_type idx_tmp = 0; |
| 4751 | 978 |
| 5275 | 979 for (octave_idx_type i = 0; i < c_dv_length; i++) |
| 4751 | 980 { |
| 981 if (i != dim) | |
| 982 value_dv.elem (idx_tmp++) = c_dv.elem (i); | |
| 983 } | |
| 984 | |
| 985 // All initializing is done, we can start moving | |
| 986 // values. | |
| 987 | |
| 988 Octave_map map; | |
| 989 | |
| 990 // If field is a cell array then we use all | |
| 991 // elements in array, on the other hand when | |
| 992 // field is a character array the number of | |
| 993 // elements is equals the number of rows. | |
| 994 | |
| 5275 | 995 octave_idx_type field_numel |
| 4751 | 996 = field_is_cell ? field_dv.numel (): field_dv(0); |
| 997 | |
| 998 // For matlab compatibility. | |
| 999 | |
| 1000 if (field_numel == 0) | |
| 1001 map.reshape (dim_vector (0, 1)); | |
| 4750 | 1002 |
| 5275 | 1003 for (octave_idx_type i = 0; i < field_numel; i++) |
| 4751 | 1004 { |
| 1005 // Construct cell array which goes into the | |
| 1006 // structure together with the appropriate | |
| 1007 // field name. | |
| 1008 | |
| 1009 Cell c_value (value_dv); | |
| 1010 | |
| 5275 | 1011 Array<octave_idx_type> value_idx (value_dv.length (), 0); |
| 1012 Array<octave_idx_type> c_idx (c_dv_length, 0); | |
| 4751 | 1013 |
| 5275 | 1014 for (octave_idx_type j = 0; j < value_dv.numel (); j++) |
| 4751 | 1015 { |
| 1016 // Need to do this to construct the | |
| 1017 // appropriate idx for getting elements | |
| 1018 // from the original cell array. | |
| 1019 | |
| 1020 cell2struct_construct_idx (c_idx, value_idx, | |
| 1021 dim, i); | |
| 1022 | |
| 1023 c_value.elem (value_idx) = c.elem (c_idx); | |
| 1024 | |
| 1025 increment_index (value_idx, value_dv); | |
| 1026 } | |
| 1027 | |
| 1028 std::string field_str; | |
| 4750 | 1029 |
| 4751 | 1030 if (field_is_cell) |
| 1031 { | |
| 1032 // Matlab retrieves the field values | |
| 1033 // column by column. | |
| 1034 | |
| 1035 octave_value field_tmp = field_cell.elem (i); | |
| 1036 | |
| 1037 field_str = field_tmp.string_value (); | |
| 1038 | |
| 1039 if (error_state) | |
| 1040 { | |
| 1041 error ("cell2struct: fields have to be of type string"); | |
| 1042 break; | |
| 1043 } | |
| 1044 } | |
| 1045 else | |
| 1046 { | |
| 1047 field_str = field_char.row_as_string (i); | |
| 1048 | |
| 1049 if (error_state) | |
| 1050 return retval; | |
| 1051 } | |
| 1052 | |
| 6811 | 1053 if (! valid_identifier (field_str)) |
| 1054 { | |
| 1055 error ("cell2struct: invalid field name `%s'", | |
| 1056 field_str.c_str ()); | |
| 1057 break; | |
| 1058 } | |
| 1059 | |
| 4751 | 1060 map.reshape (value_dv); |
| 1061 | |
| 1062 map.assign (field_str, c_value); | |
| 1063 } | |
| 1064 | |
| 1065 if (! error_state) | |
| 1066 retval = map; | |
| 1067 } | |
| 4750 | 1068 } |
| 4751 | 1069 else |
| 1070 error ("cell2struct: expecting third argument to be an integer"); | |
| 4750 | 1071 } |
| 1072 else | |
| 4751 | 1073 error ("cell2struct: expecting second argument to be a cell or character array"); |
| 4750 | 1074 } |
| 4751 | 1075 else |
| 1076 error ("cell2struct: expecting first argument to be a cell array"); | |
| 4750 | 1077 } |
| 4751 | 1078 else |
| 5823 | 1079 print_usage (); |
| 4750 | 1080 |
| 1081 return retval; | |
| 1082 } | |
| 1083 | |
| 4817 | 1084 // So we can call Fcellstr directly. |
| 1085 extern octave_value_list Fcellstr (const octave_value_list& args, int); | |
| 1086 | |
| 1087 DEFUN (rmfield, args, , | |
| 1088 "-*- texinfo -*-\n\ | |
| 1089 @deftypefn {Built-in Function} {} rmfield (@var{s}, @var{f})\n\ | |
| 1090 Remove field @var{f} from the structure @var{s}. If @var{f} is a\n\ | |
| 1091 cell array of character strings or a character array, remove the\n\ | |
| 1092 named fields.\n\ | |
| 5642 | 1093 @seealso{cellstr, iscellstr, setfield}\n\ |
| 1094 @end deftypefn") | |
| 4817 | 1095 { |
| 1096 octave_value retval; | |
| 1097 | |
| 1098 int nargin = args.length (); | |
| 1099 | |
| 1100 if (nargin == 2) | |
| 1101 { | |
| 1102 Octave_map m = args(0).map_value (); | |
| 1103 | |
| 1104 octave_value_list fval = Fcellstr (args(1), 1); | |
| 1105 | |
| 1106 if (! error_state) | |
| 1107 { | |
| 1108 Cell fcell = fval(0).cell_value (); | |
| 1109 | |
| 1110 for (int i = 0; i < fcell.numel (); i++) | |
| 1111 { | |
| 1112 std::string key = fcell(i).string_value (); | |
| 1113 | |
| 1114 if (m.contains (key)) | |
| 1115 m.del (key); | |
| 1116 else | |
| 1117 { | |
| 1118 error ("rmfield: structure does not contain field %s", | |
| 1119 key.c_str ()); | |
| 1120 | |
| 1121 break; | |
| 1122 } | |
| 1123 } | |
| 1124 | |
| 1125 if (! error_state) | |
| 1126 retval = m; | |
| 1127 } | |
| 1128 } | |
| 1129 else | |
| 5823 | 1130 print_usage (); |
| 4817 | 1131 |
| 1132 return retval; | |
| 1133 } | |
| 1134 | |
| 1135 bool | |
| 6974 | 1136 octave_struct::save_ascii (std::ostream& os) |
| 4817 | 1137 { |
| 1138 Octave_map m = map_value (); | |
| 6639 | 1139 os << "# length: " << m.nfields () << "\n"; |
| 4817 | 1140 |
| 1141 Octave_map::iterator i = m.begin (); | |
| 1142 while (i != m.end ()) | |
| 1143 { | |
| 5341 | 1144 octave_value val = map.contents (i); |
| 4817 | 1145 |
| 6974 | 1146 bool b = save_ascii_data (os, val, m.key (i), false, 0); |
| 4817 | 1147 |
| 1148 if (! b) | |
| 1149 return os; | |
| 1150 | |
| 1151 i++; | |
| 1152 } | |
| 1153 | |
| 1154 return true; | |
| 1155 } | |
| 1156 | |
| 1157 bool | |
| 1158 octave_struct::load_ascii (std::istream& is) | |
| 1159 { | |
| 5275 | 1160 octave_idx_type len = 0; |
| 4817 | 1161 bool success = true; |
| 1162 | |
| 1163 if (extract_keyword (is, "length", len) && len >= 0) | |
| 1164 { | |
| 1165 if (len > 0) | |
| 1166 { | |
| 1167 Octave_map m (map); | |
| 1168 | |
| 5275 | 1169 for (octave_idx_type j = 0; j < len; j++) |
| 4817 | 1170 { |
| 1171 octave_value t2; | |
| 1172 bool dummy; | |
| 1173 | |
| 1174 // recurse to read cell elements | |
| 1175 std::string nm | |
| 5756 | 1176 = read_ascii_data (is, std::string (), dummy, t2, j); |
| 4817 | 1177 |
| 1178 if (!is) | |
| 1179 break; | |
| 1180 | |
| 6293 | 1181 Cell tcell = t2.is_cell () ? t2.cell_value () : Cell (t2); |
| 5433 | 1182 |
| 6293 | 1183 if (error_state) |
| 1184 { | |
| 1185 error ("load: internal error loading struct elements"); | |
| 1186 return false; | |
| 1187 } | |
| 5433 | 1188 |
| 6293 | 1189 m.assign (nm, tcell); |
| 4817 | 1190 } |
| 1191 | |
| 1192 if (is) | |
| 1193 map = m; | |
| 1194 else | |
| 1195 { | |
| 1196 error ("load: failed to load structure"); | |
| 1197 success = false; | |
| 1198 } | |
| 1199 } | |
| 1200 else if (len == 0 ) | |
| 6292 | 1201 map = Octave_map (dim_vector (1, 1)); |
| 4817 | 1202 else |
| 1203 panic_impossible (); | |
| 1204 } | |
| 1205 else { | |
| 1206 error ("load: failed to extract number of elements in structure"); | |
| 1207 success = false; | |
| 1208 } | |
| 1209 | |
| 1210 return success; | |
| 1211 } | |
| 1212 | |
| 1213 bool | |
| 1214 octave_struct::save_binary (std::ostream& os, bool& save_as_floats) | |
| 1215 { | |
| 1216 Octave_map m = map_value (); | |
| 1217 | |
| 6639 | 1218 int32_t len = m.nfields (); |
| 5760 | 1219 os.write (reinterpret_cast<char *> (&len), 4); |
| 4817 | 1220 |
| 1221 Octave_map::iterator i = m.begin (); | |
| 1222 while (i != m.end ()) | |
| 1223 { | |
| 5341 | 1224 octave_value val = map.contents (i); |
| 4817 | 1225 |
| 5341 | 1226 bool b = save_binary_data (os, val, m.key (i), "", 0, save_as_floats); |
| 4817 | 1227 |
| 1228 if (! b) | |
| 1229 return os; | |
| 1230 | |
| 1231 i++; | |
| 1232 } | |
| 1233 | |
| 1234 return true; | |
| 1235 } | |
| 1236 | |
| 1237 bool | |
| 1238 octave_struct::load_binary (std::istream& is, bool swap, | |
| 5760 | 1239 oct_mach_info::float_format fmt) |
| 4817 | 1240 { |
| 1241 bool success = true; | |
| 5828 | 1242 int32_t len; |
| 5760 | 1243 if (! is.read (reinterpret_cast<char *> (&len), 4)) |
| 4817 | 1244 return false; |
| 1245 if (swap) | |
| 4944 | 1246 swap_bytes<4> (&len); |
| 4817 | 1247 |
| 1248 if (len > 0) | |
| 1249 { | |
| 1250 Octave_map m (map); | |
| 1251 | |
| 5275 | 1252 for (octave_idx_type j = 0; j < len; j++) |
| 4817 | 1253 { |
| 1254 octave_value t2; | |
| 1255 bool dummy; | |
| 1256 std::string doc; | |
| 1257 | |
| 1258 // recurse to read cell elements | |
| 1259 std::string nm = read_binary_data (is, swap, fmt, std::string (), | |
| 1260 dummy, t2, doc); | |
| 1261 | |
| 1262 if (!is) | |
| 1263 break; | |
| 1264 | |
| 6293 | 1265 Cell tcell = t2.is_cell () ? t2.cell_value () : Cell (t2); |
| 5433 | 1266 |
| 6293 | 1267 if (error_state) |
| 1268 { | |
| 1269 error ("load: internal error loading struct elements"); | |
| 1270 return false; | |
| 1271 } | |
| 5433 | 1272 |
| 6293 | 1273 m.assign (nm, tcell); |
| 4817 | 1274 } |
| 1275 | |
| 1276 if (is) | |
| 1277 map = m; | |
| 1278 else | |
| 1279 { | |
| 1280 error ("load: failed to load structure"); | |
| 1281 success = false; | |
| 1282 } | |
| 1283 } | |
| 1284 else if (len == 0 ) | |
| 6292 | 1285 map = Octave_map (dim_vector (1, 1)); |
| 4817 | 1286 else |
| 1287 panic_impossible (); | |
| 1288 | |
| 1289 return success; | |
| 1290 } | |
| 1291 | |
| 1292 #if defined (HAVE_HDF5) | |
| 1293 | |
| 1294 bool | |
| 1295 octave_struct::save_hdf5 (hid_t loc_id, const char *name, bool save_as_floats) | |
| 1296 { | |
| 1297 hid_t data_hid = -1; | |
| 1298 | |
| 1299 data_hid = H5Gcreate (loc_id, name, 0); | |
| 1300 if (data_hid < 0) return false; | |
| 1301 | |
| 1302 // recursively add each element of the structure to this group | |
| 1303 Octave_map m = map_value (); | |
| 1304 Octave_map::iterator i = m.begin (); | |
| 1305 while (i != m.end ()) | |
| 1306 { | |
| 5341 | 1307 octave_value val = map.contents (i); |
| 4817 | 1308 |
| 5341 | 1309 bool retval2 = add_hdf5_data (data_hid, val, m.key (i), "", false, |
| 4817 | 1310 save_as_floats); |
| 1311 | |
| 1312 if (! retval2) | |
| 1313 break; | |
| 1314 | |
| 1315 i++; | |
| 1316 } | |
| 1317 | |
| 1318 H5Gclose (data_hid); | |
| 4837 | 1319 |
| 4817 | 1320 return true; |
| 1321 } | |
| 1322 | |
| 1323 bool | |
| 1324 octave_struct::load_hdf5 (hid_t loc_id, const char *name, | |
| 1325 bool have_h5giterate_bug) | |
| 1326 { | |
| 1327 bool retval = false; | |
| 1328 | |
| 1329 hdf5_callback_data dsub; | |
| 1330 | |
| 1331 herr_t retval2 = 0; | |
| 6292 | 1332 Octave_map m (dim_vector (1, 1)); |
| 4817 | 1333 int current_item = 0; |
| 1334 #ifdef HAVE_H5GGET_NUM_OBJS | |
| 1335 hsize_t num_obj = 0; | |
| 5060 | 1336 hid_t group_id = H5Gopen (loc_id, name); |
| 1337 H5Gget_num_objs (group_id, &num_obj); | |
| 1338 H5Gclose (group_id); | |
| 4817 | 1339 |
| 1340 while (current_item < static_cast<int> (num_obj) | |
| 1341 && (retval2 = H5Giterate (loc_id, name, ¤t_item, | |
| 1342 hdf5_read_next_data, &dsub)) > 0) | |
| 1343 #else | |
| 1344 while ((retval2 = H5Giterate (loc_id, name, ¤t_item, | |
| 1345 hdf5_read_next_data, &dsub)) > 0) | |
| 1346 #endif | |
| 1347 { | |
| 5342 | 1348 octave_value t2 = dsub.tc; |
| 1349 | |
| 6293 | 1350 Cell tcell = t2.is_cell () ? t2.cell_value () : Cell (t2); |
| 5433 | 1351 |
| 6293 | 1352 if (error_state) |
| 1353 { | |
| 1354 error ("load: internal error loading struct elements"); | |
| 1355 return false; | |
| 1356 } | |
| 5433 | 1357 |
| 6293 | 1358 m.assign (dsub.name, tcell); |
| 5336 | 1359 |
| 4817 | 1360 if (have_h5giterate_bug) |
| 1361 current_item++; // H5Giterate returned the last index processed | |
| 1362 } | |
| 1363 | |
| 1364 if (retval2 >= 0) | |
| 1365 { | |
| 1366 map = m; | |
| 1367 retval = true; | |
| 1368 } | |
| 1369 | |
| 1370 return retval; | |
| 1371 } | |
| 1372 | |
| 4687 | 1373 #endif |
| 1374 | |
| 5900 | 1375 mxArray * |
| 1376 octave_struct::as_mxArray (void) const | |
| 1377 { | |
| 1378 int nf = nfields (); | |
| 1379 string_vector kv = map_keys (); | |
| 6065 | 1380 |
| 1381 OCTAVE_LOCAL_BUFFER (const char *, f, nf); | |
| 1382 | |
| 5900 | 1383 for (int i = 0; i < nf; i++) |
| 6065 | 1384 f[i] = kv[i].c_str (); |
| 5900 | 1385 |
| 1386 mxArray *retval = new mxArray (dims (), nf, f); | |
| 1387 | |
| 1388 mxArray **elts = static_cast<mxArray **> (retval->get_data ()); | |
| 1389 | |
| 6686 | 1390 mwSize nel = numel (); |
| 5900 | 1391 |
| 6686 | 1392 mwSize ntot = nf * nel; |
| 5900 | 1393 |
| 1394 for (int i = 0; i < nf; i++) | |
| 1395 { | |
| 1396 Cell c = map.contents (kv[i]); | |
| 1397 | |
| 1398 const octave_value *p = c.data (); | |
| 1399 | |
| 6686 | 1400 mwIndex k = 0; |
| 1401 for (mwIndex j = i; j < ntot; j += nf) | |
| 5900 | 1402 elts[j] = new mxArray (p[k++]); |
| 1403 } | |
| 1404 | |
| 1405 return retval; | |
| 1406 } | |
| 1407 | |
| 2376 | 1408 /* |
| 1409 ;;; Local Variables: *** | |
| 1410 ;;; mode: C++ *** | |
| 1411 ;;; End: *** | |
| 1412 */ |