Mercurial > octave
annotate src/ov-struct.cc @ 7622:c195bd0a5c64
treat structs and cells as "constants"
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Fri, 21 Mar 2008 16:28:47 -0400 |
| parents | c01ff6818f4c |
| children | 443a8f5a50fd |
| 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 | |
|
7622
c195bd0a5c64
treat structs and cells as "constants"
John W. Eaton <jwe@octave.org>
parents:
7571
diff
changeset
|
99 octave_value |
| 4247 | 100 octave_struct::subsref (const std::string& type, |
|
7622
c195bd0a5c64
treat structs and cells as "constants"
John W. Eaton <jwe@octave.org>
parents:
7571
diff
changeset
|
101 const std::list<octave_value_list>& idx) |
| 3933 | 102 { |
|
7622
c195bd0a5c64
treat structs and cells as "constants"
John W. Eaton <jwe@octave.org>
parents:
7571
diff
changeset
|
103 octave_value retval; |
| 3933 | 104 |
| 105 int skip = 1; | |
| 106 | |
| 107 switch (type[0]) | |
| 108 { | |
| 109 case '(': | |
| 110 { | |
| 111 if (type.length () > 1 && type[1] == '.') | |
| 112 { | |
| 4219 | 113 std::list<octave_value_list>::const_iterator p = idx.begin (); |
| 114 octave_value_list key_idx = *++p; | |
| 3933 | 115 |
| 4513 | 116 Cell tmp = dotref (key_idx); |
| 3933 | 117 |
| 118 if (! error_state) | |
| 119 { | |
| 7460 | 120 Cell t = tmp.index (idx.front (), true); |
| 3933 | 121 |
|
7622
c195bd0a5c64
treat structs and cells as "constants"
John W. Eaton <jwe@octave.org>
parents:
7571
diff
changeset
|
122 retval = (t.length () == 1) ? t(0) : octave_value (t, true); |
| 3933 | 123 |
| 4513 | 124 // We handled two index elements, so tell |
| 125 // next_subsref to skip both of them. | |
| 3933 | 126 |
| 4513 | 127 skip++; |
| 3933 | 128 } |
| 129 } | |
| 130 else | |
|
7622
c195bd0a5c64
treat structs and cells as "constants"
John W. Eaton <jwe@octave.org>
parents:
7571
diff
changeset
|
131 retval = map.index (idx.front (), true); |
| 3933 | 132 } |
| 133 break; | |
| 134 | |
| 135 case '.': | |
| 136 { | |
| 5592 | 137 if (map.numel() > 0) |
| 138 { | |
| 139 Cell t = dotref (idx.front ()); | |
| 3933 | 140 |
|
7622
c195bd0a5c64
treat structs and cells as "constants"
John W. Eaton <jwe@octave.org>
parents:
7571
diff
changeset
|
141 retval = (t.length () == 1) ? t(0) : octave_value (t, true); |
| 5592 | 142 } |
| 3933 | 143 } |
| 144 break; | |
| 145 | |
| 146 case '{': | |
| 147 gripe_invalid_index_type (type_name (), type[0]); | |
| 148 break; | |
| 149 | |
| 150 default: | |
| 151 panic_impossible (); | |
| 152 } | |
| 153 | |
| 5775 | 154 // FIXME -- perhaps there should be an |
| 4994 | 155 // octave_value_list::next_subsref member function? See also |
| 156 // octave_user_function::subsref. | |
| 157 | |
| 158 if (idx.size () > 1) | |
|
7622
c195bd0a5c64
treat structs and cells as "constants"
John W. Eaton <jwe@octave.org>
parents:
7571
diff
changeset
|
159 retval = retval.next_subsref (type, idx, skip); |
| 3933 | 160 |
| 161 return retval; | |
| 162 } | |
| 163 | |
| 164 octave_value | |
| 4513 | 165 octave_struct::numeric_conv (const Cell& val, |
| 3933 | 166 const std::string& type) |
| 167 { | |
| 168 octave_value retval; | |
| 169 | |
| 170 if (val.length () == 1) | |
| 171 { | |
| 172 retval = val(0); | |
| 173 | |
| 174 if (type.length () > 0 && type[0] == '.' && ! retval.is_map ()) | |
| 175 retval = Octave_map (); | |
| 176 } | |
| 177 else | |
| 178 gripe_invalid_index_for_assignment (); | |
| 179 | |
| 180 return retval; | |
| 181 } | |
| 182 | |
| 183 octave_value | |
| 4247 | 184 octave_struct::subsasgn (const std::string& type, |
| 4219 | 185 const std::list<octave_value_list>& idx, |
| 3933 | 186 const octave_value& rhs) |
| 2376 | 187 { |
| 3933 | 188 octave_value retval; |
| 189 | |
| 190 int n = type.length (); | |
| 191 | |
| 192 octave_value t_rhs = rhs; | |
| 193 | |
| 194 if (n > 1 && ! (type.length () == 2 && type[0] == '(' && type[1] == '.')) | |
| 195 { | |
| 196 switch (type[0]) | |
| 197 { | |
| 198 case '(': | |
| 199 { | |
| 200 if (type.length () > 1 && type[1] == '.') | |
| 201 { | |
| 4219 | 202 std::list<octave_value_list>::const_iterator p = idx.begin (); |
| 203 octave_value_list t_idx = *p; | |
| 3933 | 204 |
| 4513 | 205 octave_value_list key_idx = *++p; |
| 206 | |
| 207 assert (key_idx.length () == 1); | |
| 3933 | 208 |
| 4513 | 209 std::string key = key_idx(0).string_value (); |
| 3933 | 210 |
| 4513 | 211 octave_value u; |
| 3933 | 212 |
| 4513 | 213 if (! map.contains (key)) |
| 214 u = octave_value::empty_conv (type.substr (2), rhs); | |
| 215 else | |
| 216 { | |
| 4675 | 217 Cell map_val = map.contents (key); |
| 3933 | 218 |
| 4513 | 219 Cell map_elt = map_val.index (idx.front (), true); |
| 3933 | 220 |
| 4513 | 221 u = numeric_conv (map_elt, type.substr (2)); |
| 222 } | |
| 3933 | 223 |
| 4513 | 224 if (! error_state) |
| 225 { | |
| 226 std::list<octave_value_list> next_idx (idx); | |
| 3933 | 227 |
| 4513 | 228 // We handled two index elements, so subsasgn to |
| 229 // needs to skip both of them. | |
| 3933 | 230 |
| 4513 | 231 next_idx.erase (next_idx.begin ()); |
| 232 next_idx.erase (next_idx.begin ()); | |
| 4059 | 233 |
| 4513 | 234 u.make_unique (); |
| 235 | |
| 236 t_rhs = u.subsasgn (type.substr (2), next_idx, rhs); | |
| 3933 | 237 } |
| 238 } | |
| 239 else | |
| 240 gripe_invalid_index_for_assignment (); | |
| 241 } | |
| 242 break; | |
| 243 | |
| 244 case '.': | |
| 245 { | |
| 246 octave_value_list key_idx = idx.front (); | |
| 247 | |
| 248 assert (key_idx.length () == 1); | |
| 249 | |
| 250 std::string key = key_idx(0).string_value (); | |
| 251 | |
| 252 octave_value u; | |
| 253 | |
| 254 if (! map.contains (key)) | |
| 255 u = octave_value::empty_conv (type.substr (1), rhs); | |
| 256 else | |
| 257 { | |
| 4675 | 258 Cell map_val = map.contents (key); |
| 3933 | 259 |
| 260 u = numeric_conv (map_val, type.substr (1)); | |
| 261 } | |
| 262 | |
| 263 if (! error_state) | |
| 264 { | |
| 4219 | 265 std::list<octave_value_list> next_idx (idx); |
| 3933 | 266 |
| 4219 | 267 next_idx.erase (next_idx.begin ()); |
| 3933 | 268 |
| 4059 | 269 u.make_unique (); |
| 270 | |
| 3933 | 271 t_rhs = u.subsasgn (type.substr (1), next_idx, rhs); |
| 272 } | |
| 273 } | |
| 274 break; | |
| 275 | |
| 276 case '{': | |
| 277 gripe_invalid_index_type (type_name (), type[0]); | |
| 278 break; | |
| 279 | |
| 280 default: | |
| 281 panic_impossible (); | |
| 282 } | |
| 283 } | |
| 284 | |
| 285 if (! error_state) | |
| 286 { | |
| 287 switch (type[0]) | |
| 288 { | |
| 289 case '(': | |
| 290 { | |
| 291 if (n > 1 && type[1] == '.') | |
| 292 { | |
| 4219 | 293 std::list<octave_value_list>::const_iterator p = idx.begin (); |
| 294 octave_value_list key_idx = *++p; | |
| 3933 | 295 |
| 296 assert (key_idx.length () == 1); | |
| 297 | |
| 298 std::string key = key_idx(0).string_value (); | |
| 299 | |
| 300 if (! error_state) | |
| 301 { | |
| 4513 | 302 map.assign (idx.front (), key, t_rhs); |
| 3933 | 303 |
| 4513 | 304 if (! error_state) |
| 5759 | 305 { |
| 306 count++; | |
| 307 retval = octave_value (this); | |
| 308 } | |
| 3933 | 309 else |
| 4513 | 310 gripe_failed_assignment (); |
| 3933 | 311 } |
| 312 else | |
| 313 gripe_failed_assignment (); | |
| 314 } | |
| 315 else | |
| 4197 | 316 { |
| 5592 | 317 if (t_rhs.is_map()) |
| 4197 | 318 { |
| 5592 | 319 Octave_map rhs_map = t_rhs.map_value (); |
| 4197 | 320 |
| 321 if (! error_state) | |
| 5592 | 322 { |
| 323 map.assign (idx.front (), rhs_map); | |
| 324 | |
| 325 if (! error_state) | |
| 5759 | 326 { |
| 327 count++; | |
| 328 retval = octave_value (this); | |
| 329 } | |
| 5592 | 330 else |
| 331 gripe_failed_assignment (); | |
| 332 } | |
| 4197 | 333 else |
| 5592 | 334 error ("invalid structure assignment"); |
| 4197 | 335 } |
| 4513 | 336 else |
| 5592 | 337 { |
| 338 if (t_rhs.is_empty()) | |
| 339 { | |
| 340 map.maybe_delete_elements (idx.front()); | |
| 341 | |
| 342 if (! error_state) | |
| 5759 | 343 { |
| 344 count++; | |
| 345 retval = octave_value (this); | |
| 346 } | |
| 5592 | 347 else |
| 348 gripe_failed_assignment (); | |
| 349 } | |
| 350 else | |
| 351 error ("invalid structure assignment"); | |
| 352 } | |
| 4197 | 353 } |
| 3933 | 354 } |
| 355 break; | |
| 356 | |
| 357 case '.': | |
| 358 { | |
| 359 octave_value_list key_idx = idx.front (); | |
| 360 | |
| 361 assert (key_idx.length () == 1); | |
| 362 | |
| 363 std::string key = key_idx(0).string_value (); | |
| 364 | |
| 6833 | 365 if (t_rhs.is_cs_list ()) |
| 366 { | |
| 367 Cell tmp_cell = Cell (t_rhs.list_value ()); | |
| 368 | |
| 7040 | 369 // The shape of the RHS is irrelevant, we just want |
| 370 // the number of elements to agree and to preserve the | |
| 371 // shape of the left hand side of the assignment. | |
| 372 | |
| 373 if (numel () == tmp_cell.numel ()) | |
| 374 tmp_cell = tmp_cell.reshape (dims ()); | |
| 6833 | 375 |
| 376 map.assign (key, tmp_cell); | |
| 377 } | |
| 378 else | |
| 379 map.assign (key, t_rhs); | |
| 3933 | 380 |
| 381 if (! error_state) | |
| 5759 | 382 { |
| 383 count++; | |
| 384 retval = octave_value (this); | |
| 385 } | |
| 3933 | 386 else |
| 387 gripe_failed_assignment (); | |
| 388 } | |
| 389 break; | |
| 390 | |
| 391 case '{': | |
| 392 gripe_invalid_index_type (type_name (), type[0]); | |
| 393 break; | |
| 394 | |
| 395 default: | |
| 396 panic_impossible (); | |
| 397 } | |
| 398 } | |
| 399 else | |
| 400 gripe_failed_assignment (); | |
| 401 | |
| 402 return retval; | |
| 2376 | 403 } |
| 404 | |
| 7046 | 405 octave_value |
| 406 octave_struct::do_index_op (const octave_value_list& idx, bool resize_ok) | |
| 407 { | |
| 408 octave_value retval; | |
| 409 | |
| 410 octave_idx_type n_idx = idx.length (); | |
| 411 | |
| 412 int nd = map.ndims (); | |
| 413 | |
| 414 switch (n_idx) | |
| 415 { | |
| 416 case 0: | |
| 417 retval = map; | |
| 418 break; | |
| 419 | |
| 420 case 1: | |
| 421 { | |
| 422 idx_vector i = idx (0).index_vector (); | |
| 423 | |
| 424 if (! error_state) | |
| 425 retval = map.index (i, resize_ok, Cell::resize_fill_value ()); | |
| 426 } | |
| 427 break; | |
| 428 | |
| 429 default: | |
| 430 { | |
| 431 if (n_idx == 2 && nd == 2) | |
| 432 { | |
| 433 idx_vector i = idx (0).index_vector (); | |
| 434 | |
| 435 if (! error_state) | |
| 436 { | |
| 437 idx_vector j = idx (1).index_vector (); | |
| 438 | |
| 439 if (! error_state) | |
| 440 retval = map.index (i, j, resize_ok, | |
| 441 Cell::resize_fill_value ()); | |
| 442 } | |
| 443 } | |
| 444 else | |
| 445 { | |
| 446 Array<idx_vector> idx_vec (n_idx); | |
| 447 | |
| 448 for (octave_idx_type i = 0; i < n_idx; i++) | |
| 449 { | |
| 450 idx_vec(i) = idx(i).index_vector (); | |
| 451 | |
| 452 if (error_state) | |
| 453 break; | |
| 454 } | |
| 455 | |
| 456 if (! error_state) | |
| 457 retval = map.index (idx_vec, resize_ok, | |
| 458 Cell::resize_fill_value ()); | |
| 459 } | |
| 460 } | |
| 461 break; | |
| 462 } | |
| 463 | |
| 464 return retval; | |
| 465 } | |
| 466 | |
| 4791 | 467 size_t |
| 468 octave_struct::byte_size (void) const | |
| 469 { | |
| 470 // Neglect the size of the fieldnames. | |
| 471 | |
| 472 size_t retval = 0; | |
| 473 | |
| 474 for (Octave_map::const_iterator p = map.begin (); p != map.end (); p++) | |
| 475 { | |
| 476 std::string key = map.key (p); | |
| 477 | |
| 478 octave_value val = octave_value (map.contents (p)); | |
| 479 | |
| 480 retval += val.byte_size (); | |
| 481 } | |
| 482 | |
| 483 return retval; | |
| 484 } | |
| 485 | |
| 2376 | 486 void |
| 3523 | 487 octave_struct::print (std::ostream& os, bool) const |
| 2901 | 488 { |
| 489 print_raw (os); | |
| 490 } | |
| 491 | |
| 492 void | |
| 3523 | 493 octave_struct::print_raw (std::ostream& os, bool) const |
| 2376 | 494 { |
| 2985 | 495 unwind_protect::begin_frame ("octave_struct_print"); |
| 2376 | 496 |
| 497 unwind_protect_int (Vstruct_levels_to_print); | |
| 498 | |
| 3961 | 499 if (Vstruct_levels_to_print >= 0) |
| 2376 | 500 { |
|
7571
c01ff6818f4c
simplify struct array printing
John W. Eaton <jwe@octave.org>
parents:
7460
diff
changeset
|
501 bool print_keys_only = Vstruct_levels_to_print-- == 0; |
| 3961 | 502 |
| 2901 | 503 indent (os); |
| 504 os << "{"; | |
| 505 newline (os); | |
| 2376 | 506 |
| 2901 | 507 increment_indent_level (); |
| 2376 | 508 |
| 5598 | 509 octave_idx_type n = map.numel (); |
| 3932 | 510 |
|
7571
c01ff6818f4c
simplify struct array printing
John W. Eaton <jwe@octave.org>
parents:
7460
diff
changeset
|
511 if (n != 1 || print_keys_only) |
| 4604 | 512 { |
| 513 indent (os); | |
| 514 dim_vector dv = dims (); | |
| 515 os << dv.str () << " struct array containing the fields:"; | |
| 516 newline (os); | |
| 517 newline (os); | |
| 518 | |
| 519 increment_indent_level (); | |
| 520 } | |
| 521 | |
| 5880 | 522 string_vector key_list = map.keys (); |
| 523 | |
| 524 for (octave_idx_type i = 0; i < key_list.length (); i++) | |
| 2376 | 525 { |
| 5880 | 526 std::string key = key_list[i]; |
| 527 | |
| 528 Cell val = map.contents (key); | |
| 2376 | 529 |
| 4499 | 530 octave_value tmp = (n == 1) ? val(0) : octave_value (val, true); |
| 3961 | 531 |
|
7571
c01ff6818f4c
simplify struct array printing
John W. Eaton <jwe@octave.org>
parents:
7460
diff
changeset
|
532 if (n != 1 || print_keys_only) |
| 3932 | 533 { |
| 3961 | 534 indent (os); |
| 4604 | 535 os << key; |
| 536 if (n == 1) | |
| 537 { | |
| 538 dim_vector dv = tmp.dims (); | |
| 539 os << ": " << dv.str () << " " << tmp.type_name (); | |
| 540 } | |
| 3961 | 541 newline (os); |
| 3932 | 542 } |
| 3961 | 543 else |
| 4121 | 544 tmp.print_with_name (os, key); |
| 2376 | 545 } |
| 546 | |
|
7571
c01ff6818f4c
simplify struct array printing
John W. Eaton <jwe@octave.org>
parents:
7460
diff
changeset
|
547 if (n != 1 || print_keys_only) |
| 4604 | 548 decrement_indent_level (); |
| 549 | |
| 2901 | 550 decrement_indent_level (); |
| 2376 | 551 |
| 2901 | 552 indent (os); |
| 553 os << "}"; | |
| 554 newline (os); | |
| 2376 | 555 } |
| 556 else | |
| 2901 | 557 { |
| 3961 | 558 indent (os); |
| 559 os << "<structure>"; | |
| 2901 | 560 newline (os); |
| 561 } | |
| 2376 | 562 |
| 2985 | 563 unwind_protect::run_frame ("octave_struct_print"); |
| 2376 | 564 } |
| 565 | |
| 2901 | 566 bool |
| 3523 | 567 octave_struct::print_name_tag (std::ostream& os, const std::string& name) const |
| 2901 | 568 { |
| 3961 | 569 bool retval = false; |
| 570 | |
| 2901 | 571 indent (os); |
| 3961 | 572 |
| 573 if (Vstruct_levels_to_print < 0) | |
| 574 os << name << " = "; | |
| 575 else | |
| 576 { | |
| 577 os << name << " ="; | |
| 578 newline (os); | |
| 579 retval = true; | |
| 580 } | |
| 581 | |
| 582 return retval; | |
| 2901 | 583 } |
| 584 | |
| 4744 | 585 static bool |
| 586 scalar (const dim_vector& dims) | |
| 587 { | |
| 588 return dims.length () == 2 && dims (0) == 1 && dims (1) == 1; | |
| 589 } | |
| 590 | |
| 591 /* | |
| 592 %!shared x | |
| 593 %! x(1).a=1; x(2).a=2; x(1).b=3; x(2).b=3; | |
| 594 %!assert(struct('a',1,'b',3),x(1)) | |
| 5592 | 595 %!assert(isempty(x([]))) |
| 596 %!assert(isempty(struct('a',{},'b',{}))) | |
| 4744 | 597 %!assert(struct('a',{1,2},'b',{3,3}),x) |
| 598 %!assert(struct('a',{1,2},'b',3),x) | |
| 599 %!assert(struct('a',{1,2},'b',{3}),x) | |
| 600 %!assert(struct('b',3,'a',{1,2}),x) | |
| 601 %!assert(struct('b',{3},'a',{1,2}),x) | |
| 602 %!test x=struct([]); | |
| 603 %!assert(size(x),[0,0]); | |
| 604 %!assert(isstruct(x)); | |
| 605 %!assert(isempty(fieldnames(x))); | |
| 606 %!fail("struct('a',{1,2},'b',{1,2,3})","dimensions of parameter 2 do not match those of parameter 4") | |
| 5582 | 607 %!fail("struct(1,2,3,4)","struct expects alternating \"field\", VALUE pairs"); |
| 608 %!fail("struct('1',2,'3')","struct expects alternating \"field\", VALUE pairs"); | |
| 4744 | 609 */ |
| 610 | |
| 611 DEFUN (struct, args, , | |
| 612 "-*- texinfo -*-\n\ | |
| 613 @deftypefn {Built-in Function} {} struct (\"field\", @var{value}, \"field\", @var{value}, @dots{})\n\ | |
| 614 \n\ | |
| 615 Create a structure and initialize its value.\n\ | |
| 616 \n\ | |
| 617 If the values are cell arrays, create a structure array and initialize\n\ | |
| 618 its values. The dimensions of each cell array of values must match.\n\ | |
| 619 Singleton cells and non-cell values are repeated so that they fill\n\ | |
| 620 the entire array. If the cells are empty, create an empty structure\n\ | |
| 4911 | 621 array with the specified field names.\n\ |
| 622 @end deftypefn") | |
| 4744 | 623 { |
| 6946 | 624 octave_value retval; |
| 4744 | 625 |
| 626 int nargin = args.length (); | |
| 627 | |
| 5444 | 628 // struct ([]) returns an empty struct. |
| 629 | |
| 630 // struct (empty_matrix) returns an empty struct with the same | |
| 631 // dimensions as the empty matrix. | |
| 632 | |
| 633 // Note that struct () creates a 1x1 struct with no fields for | |
| 634 // compatibility with Matlab. | |
| 4744 | 635 |
| 6946 | 636 if ((nargin == 1 || nargin == 2) |
| 637 && args(0).is_empty () && args(0).is_real_matrix ()) | |
| 638 { | |
| 639 Cell fields; | |
| 640 | |
| 641 if (nargin == 2) | |
| 642 { | |
| 643 if (args(1).is_cellstr ()) | |
| 644 retval = Octave_map (args(0).dims (), args(1).cell_value ()); | |
| 645 else | |
| 646 error ("struct: expecting cell array of field names as second argument"); | |
| 647 } | |
| 648 else | |
| 649 retval = Octave_map (args(0).dims ()); | |
| 650 | |
| 651 return retval; | |
| 652 } | |
| 4744 | 653 |
| 654 // Check for "field", VALUE pairs. | |
| 655 | |
| 656 for (int i = 0; i < nargin; i += 2) | |
| 657 { | |
| 658 if (! args(i).is_string () || i + 1 >= nargin) | |
| 659 { | |
| 660 error ("struct expects alternating \"field\", VALUE pairs"); | |
| 661 return retval; | |
| 662 } | |
| 663 } | |
| 664 | |
| 665 // Check that the dimensions of the values correspond. | |
| 666 | |
| 667 dim_vector dims (1, 1); | |
| 668 | |
| 669 int first_dimensioned_value = 0; | |
| 670 | |
| 671 for (int i = 1; i < nargin; i += 2) | |
| 672 { | |
| 673 if (args(i).is_cell ()) | |
| 674 { | |
| 675 dim_vector argdims (args(i).dims ()); | |
| 676 | |
| 677 if (! scalar (argdims)) | |
| 678 { | |
| 679 if (! first_dimensioned_value) | |
| 680 { | |
| 681 dims = argdims; | |
| 682 first_dimensioned_value = i + 1; | |
| 683 } | |
| 684 else if (dims != argdims) | |
| 685 { | |
| 686 error ("struct: dimensions of parameter %d do not match those of parameter %d", | |
| 687 first_dimensioned_value, i+1); | |
| 688 return retval; | |
| 689 } | |
| 690 } | |
| 691 } | |
| 692 } | |
| 693 | |
| 694 // Create the return value. | |
| 695 | |
| 696 Octave_map map (dims); | |
| 697 | |
| 698 for (int i = 0; i < nargin; i+= 2) | |
| 699 { | |
| 700 // Get key. | |
| 701 | |
| 702 std::string key (args(i).string_value ()); | |
| 703 | |
| 704 if (error_state) | |
| 705 return retval; | |
| 706 | |
| 6811 | 707 if (! valid_identifier (key)) |
| 708 { | |
| 709 error ("struct: invalid structure field name `%s'", key.c_str ()); | |
| 710 return retval; | |
| 711 } | |
| 712 | |
| 4744 | 713 // Value may be v, { v }, or { v1, v2, ... } |
| 714 // In the first two cases, we need to create a cell array of | |
| 715 // the appropriate dimensions filled with v. In the last case, | |
| 716 // the cell array has already been determined to be of the | |
| 717 // correct dimensions. | |
| 718 | |
| 719 if (args(i+1).is_cell ()) | |
| 720 { | |
| 721 const Cell c (args(i+1).cell_value ()); | |
| 722 | |
| 723 if (error_state) | |
| 724 return retval; | |
| 725 | |
| 726 if (scalar (c.dims ())) | |
| 727 map.assign (key, Cell (dims, c(0))); | |
| 728 else | |
| 729 map.assign (key, c); | |
| 730 } | |
| 731 else | |
| 732 map.assign (key, Cell (dims, args(i+1))); | |
| 733 | |
| 734 if (error_state) | |
| 735 return retval; | |
| 736 } | |
| 6946 | 737 |
| 4744 | 738 return octave_value (map); |
| 739 } | |
| 740 | |
| 4358 | 741 DEFUN (isstruct, args, , |
| 742 "-*- texinfo -*-\n\ | |
| 743 @deftypefn {Built-in Function} {} isstruct (@var{expr})\n\ | |
| 744 Return 1 if the value of the expression @var{expr} is a structure.\n\ | |
| 745 @end deftypefn") | |
| 746 { | |
| 747 octave_value retval; | |
| 748 | |
| 749 if (args.length () == 1) | |
| 750 retval = args(0).is_map (); | |
| 751 else | |
| 5823 | 752 print_usage (); |
| 4358 | 753 |
| 754 return retval; | |
| 755 } | |
| 756 | |
| 757 DEFUN (fieldnames, args, , | |
| 758 "-*- texinfo -*-\n\ | |
| 759 @deftypefn {Built-in Function} {} fieldnames (@var{struct})\n\ | |
| 760 Return a cell array of strings naming the elements of the structure\n\ | |
| 761 @var{struct}. It is an error to call @code{fieldnames} with an\n\ | |
| 762 argument that is not a structure.\n\ | |
| 763 @end deftypefn") | |
| 764 { | |
| 765 octave_value retval; | |
| 766 | |
| 767 int nargin = args.length (); | |
| 768 | |
| 769 if (nargin == 1) | |
| 770 { | |
| 7336 | 771 octave_value arg = args(0); |
| 772 | |
| 773 if (arg.is_map () || arg.is_object ()) | |
| 4358 | 774 { |
| 7336 | 775 Octave_map m = arg.map_value (); |
| 776 | |
| 4744 | 777 string_vector keys = m.keys (); |
| 7336 | 778 |
| 4744 | 779 if (keys.length () == 0) |
| 780 retval = Cell (0, 1); | |
| 781 else | |
| 782 retval = Cell (m.keys ()); | |
| 4358 | 783 } |
| 784 else | |
| 785 gripe_wrong_type_arg ("fieldnames", args(0)); | |
| 786 } | |
| 787 else | |
| 5823 | 788 print_usage (); |
| 4358 | 789 |
| 790 return retval; | |
| 791 } | |
| 792 | |
| 793 DEFUN (isfield, args, , | |
| 794 "-*- texinfo -*-\n\ | |
| 795 @deftypefn {Built-in Function} {} isfield (@var{expr}, @var{name})\n\ | |
| 796 Return true if the expression @var{expr} is a structure and it includes an\n\ | |
| 797 element named @var{name}. The first argument must be a structure and\n\ | |
| 798 the second must be a string.\n\ | |
| 799 @end deftypefn") | |
| 800 { | |
| 801 octave_value retval; | |
| 802 | |
| 803 int nargin = args.length (); | |
| 804 | |
| 805 if (nargin == 2) | |
| 806 { | |
| 807 retval = false; | |
| 808 | |
| 5775 | 809 // FIXME -- should this work for all types that can do |
| 4358 | 810 // structure reference operations? |
| 811 | |
| 812 if (args(0).is_map () && args(1).is_string ()) | |
| 813 { | |
| 814 std::string key = args(1).string_value (); | |
| 815 | |
| 816 Octave_map m = args(0).map_value (); | |
| 817 | |
| 818 retval = m.contains (key) != 0; | |
| 819 } | |
| 820 } | |
| 821 else | |
| 5823 | 822 print_usage (); |
| 4358 | 823 |
| 824 return retval; | |
| 825 } | |
| 826 | |
| 4750 | 827 // Check that the dimensions of the input arguments are correct. |
| 828 | |
| 829 static bool | |
| 830 cell2struct_check_args (const dim_vector& c_dv, const dim_vector& f_dv, | |
| 831 bool is_cell, int dim) | |
| 832 { | |
| 4751 | 833 bool retval = true; |
| 4750 | 834 |
| 835 if (dim >= 0 && dim < c_dv.length ()) | |
| 836 { | |
| 837 if (is_cell) | |
| 838 { | |
| 4752 | 839 if (f_dv.numel () != c_dv(dim)) |
| 4750 | 840 { |
| 4751 | 841 error ("cell2struct: numel (FIELD) != size (CELL, DIM)"); |
| 4750 | 842 |
| 843 retval = false; | |
| 844 } | |
| 845 } | |
| 846 else | |
| 847 { | |
| 848 if (f_dv.length () > 2) | |
| 849 { | |
| 4751 | 850 error ("cell2struct: field array must be a 2-d matrix"); |
| 4750 | 851 |
| 852 retval = false; | |
| 853 } | |
| 854 else if (f_dv(0) != c_dv(dim)) | |
| 855 { | |
| 4751 | 856 error ("cell2struct: size (FIELD, 1) != length (C, DIM)"); |
| 4750 | 857 |
| 858 retval = false; | |
| 859 } | |
| 860 } | |
| 861 } | |
| 862 else | |
| 863 { | |
| 864 error ("cell2struct: DIM out of range"); | |
| 865 | |
| 866 retval = false; | |
| 867 } | |
| 868 | |
| 869 return retval; | |
| 870 } | |
| 871 | |
| 872 static void | |
| 5275 | 873 cell2struct_construct_idx (Array<octave_idx_type>& ra_idx1, |
| 874 const Array<octave_idx_type>& ra_idx2, | |
| 875 octave_idx_type dim, octave_idx_type fill_value) | |
| 4750 | 876 { |
| 5275 | 877 octave_idx_type iidx = 0; |
| 4750 | 878 |
| 5275 | 879 for (octave_idx_type idx = 0; idx < ra_idx1.length (); idx++) |
| 4750 | 880 { |
| 881 if (idx == dim) | |
| 882 ra_idx1.elem (idx) = fill_value; | |
| 883 else | |
| 884 ra_idx1.elem (idx) = ra_idx2(iidx++); | |
| 885 } | |
| 886 } | |
| 887 | |
| 888 DEFUN (cell2struct, args, , | |
| 889 "-*- texinfo -*-\n\ | |
| 4817 | 890 @deftypefn {Built-in Function} {} cell2struct (@var{cell}, @var{fields}, @var{dim})\n\ |
| 891 Convert @var{cell} to a structure. The number of fields in @var{fields}\n\ | |
| 892 must match the number of elements in @var{cell} along dimension @var{dim},\n\ | |
| 893 that is @code{numel (@var{fields}) == size (@var{cell}, @var{dim})}.\n\ | |
| 4750 | 894 \n\ |
| 895 @example\n\ | |
| 896 @group\n\ | |
| 7031 | 897 A = cell2struct (@{'Peter', 'Hannah', 'Robert';\n\ |
| 898 185, 170, 168@},\n\ | |
| 6519 | 899 @{'Name','Height'@}, 1);\n\ |
| 4750 | 900 A(1)\n\ |
| 901 @result{} ans =\n\ | |
| 4780 | 902 @{\n\ |
| 903 Height = 185\n\ | |
| 904 Name = Peter\n\ | |
| 905 @}\n\ | |
| 4750 | 906 \n\ |
| 907 @end group\n\ | |
| 908 @end example\n\ | |
| 909 @end deftypefn") | |
| 910 { | |
| 911 octave_value retval; | |
| 912 | |
| 4751 | 913 if (args.length () == 3) |
| 4750 | 914 { |
| 4751 | 915 Cell c = args(0).cell_value (); |
| 4750 | 916 |
| 4751 | 917 if (! error_state) |
| 4750 | 918 { |
| 4751 | 919 octave_value field = args(1); |
| 4750 | 920 |
| 4751 | 921 // Field is either cell or character matrix. |
| 4750 | 922 |
| 5775 | 923 // FIXME -- this could be simplified if we had |
| 4752 | 924 // cellstr and iscellstr functions available. |
| 925 | |
| 4751 | 926 bool field_is_cell = field.is_cell (); |
| 4750 | 927 |
| 4751 | 928 Cell field_cell; |
| 929 charMatrix field_char; | |
| 4750 | 930 |
| 931 if (field_is_cell) | |
| 4751 | 932 field_cell = field.cell_value (); |
| 933 else | |
| 934 field_char = field.char_matrix_value (); | |
| 935 | |
| 936 if (! error_state) | |
| 4750 | 937 { |
| 4751 | 938 // Retrieve the dimension value. |
| 939 | |
| 5775 | 940 // FIXME -- int_value () should print out the |
| 4751 | 941 // conversions it does to be Matlab compatible. |
| 942 | |
| 5275 | 943 octave_idx_type dim = args(2).int_value () - 1; |
| 4751 | 944 |
| 945 if (! error_state) | |
| 946 { | |
| 947 dim_vector c_dv = c.dims (); | |
| 948 dim_vector field_dv = field.dims (); | |
| 949 | |
| 950 if (cell2struct_check_args (c_dv, field_dv, field_is_cell, | |
| 951 dim)) | |
| 952 { | |
| 5275 | 953 octave_idx_type c_dv_length = c_dv.length (); |
| 4751 | 954 |
| 955 // Dimension vector for the Cell arrays to be | |
| 956 // put into the structure. | |
| 957 | |
| 958 dim_vector value_dv; | |
| 959 | |
| 960 // Initialize c_value_dv. | |
| 4750 | 961 |
| 4751 | 962 if (c_dv_length == 2) |
| 963 value_dv = dim_vector (1, 1); | |
| 964 else | |
| 965 value_dv.resize (c_dv_length - 1); | |
| 966 | |
| 5275 | 967 octave_idx_type idx_tmp = 0; |
| 4751 | 968 |
| 5275 | 969 for (octave_idx_type i = 0; i < c_dv_length; i++) |
| 4751 | 970 { |
| 971 if (i != dim) | |
| 972 value_dv.elem (idx_tmp++) = c_dv.elem (i); | |
| 973 } | |
| 974 | |
| 975 // All initializing is done, we can start moving | |
| 976 // values. | |
| 977 | |
| 978 Octave_map map; | |
| 979 | |
| 980 // If field is a cell array then we use all | |
| 981 // elements in array, on the other hand when | |
| 982 // field is a character array the number of | |
| 983 // elements is equals the number of rows. | |
| 984 | |
| 5275 | 985 octave_idx_type field_numel |
| 4751 | 986 = field_is_cell ? field_dv.numel (): field_dv(0); |
| 987 | |
| 988 // For matlab compatibility. | |
| 989 | |
| 990 if (field_numel == 0) | |
| 991 map.reshape (dim_vector (0, 1)); | |
| 4750 | 992 |
| 5275 | 993 for (octave_idx_type i = 0; i < field_numel; i++) |
| 4751 | 994 { |
| 995 // Construct cell array which goes into the | |
| 996 // structure together with the appropriate | |
| 997 // field name. | |
| 998 | |
| 999 Cell c_value (value_dv); | |
| 1000 | |
| 5275 | 1001 Array<octave_idx_type> value_idx (value_dv.length (), 0); |
| 1002 Array<octave_idx_type> c_idx (c_dv_length, 0); | |
| 4751 | 1003 |
| 5275 | 1004 for (octave_idx_type j = 0; j < value_dv.numel (); j++) |
| 4751 | 1005 { |
| 1006 // Need to do this to construct the | |
| 1007 // appropriate idx for getting elements | |
| 1008 // from the original cell array. | |
| 1009 | |
| 1010 cell2struct_construct_idx (c_idx, value_idx, | |
| 1011 dim, i); | |
| 1012 | |
| 1013 c_value.elem (value_idx) = c.elem (c_idx); | |
| 1014 | |
| 1015 increment_index (value_idx, value_dv); | |
| 1016 } | |
| 1017 | |
| 1018 std::string field_str; | |
| 4750 | 1019 |
| 4751 | 1020 if (field_is_cell) |
| 1021 { | |
| 1022 // Matlab retrieves the field values | |
| 1023 // column by column. | |
| 1024 | |
| 1025 octave_value field_tmp = field_cell.elem (i); | |
| 1026 | |
| 1027 field_str = field_tmp.string_value (); | |
| 1028 | |
| 1029 if (error_state) | |
| 1030 { | |
| 1031 error ("cell2struct: fields have to be of type string"); | |
| 1032 break; | |
| 1033 } | |
| 1034 } | |
| 1035 else | |
| 1036 { | |
| 1037 field_str = field_char.row_as_string (i); | |
| 1038 | |
| 1039 if (error_state) | |
| 1040 return retval; | |
| 1041 } | |
| 1042 | |
| 6811 | 1043 if (! valid_identifier (field_str)) |
| 1044 { | |
| 1045 error ("cell2struct: invalid field name `%s'", | |
| 1046 field_str.c_str ()); | |
| 1047 break; | |
| 1048 } | |
| 1049 | |
| 4751 | 1050 map.reshape (value_dv); |
| 1051 | |
| 1052 map.assign (field_str, c_value); | |
| 1053 } | |
| 1054 | |
| 1055 if (! error_state) | |
| 1056 retval = map; | |
| 1057 } | |
| 4750 | 1058 } |
| 4751 | 1059 else |
| 1060 error ("cell2struct: expecting third argument to be an integer"); | |
| 4750 | 1061 } |
| 1062 else | |
| 4751 | 1063 error ("cell2struct: expecting second argument to be a cell or character array"); |
| 4750 | 1064 } |
| 4751 | 1065 else |
| 1066 error ("cell2struct: expecting first argument to be a cell array"); | |
| 4750 | 1067 } |
| 4751 | 1068 else |
| 5823 | 1069 print_usage (); |
| 4750 | 1070 |
| 1071 return retval; | |
| 1072 } | |
| 1073 | |
| 4817 | 1074 // So we can call Fcellstr directly. |
| 1075 extern octave_value_list Fcellstr (const octave_value_list& args, int); | |
| 1076 | |
| 1077 DEFUN (rmfield, args, , | |
| 1078 "-*- texinfo -*-\n\ | |
| 1079 @deftypefn {Built-in Function} {} rmfield (@var{s}, @var{f})\n\ | |
| 1080 Remove field @var{f} from the structure @var{s}. If @var{f} is a\n\ | |
| 1081 cell array of character strings or a character array, remove the\n\ | |
| 1082 named fields.\n\ | |
| 5642 | 1083 @seealso{cellstr, iscellstr, setfield}\n\ |
| 1084 @end deftypefn") | |
| 4817 | 1085 { |
| 1086 octave_value retval; | |
| 1087 | |
| 1088 int nargin = args.length (); | |
| 1089 | |
| 1090 if (nargin == 2) | |
| 1091 { | |
| 1092 Octave_map m = args(0).map_value (); | |
| 1093 | |
| 1094 octave_value_list fval = Fcellstr (args(1), 1); | |
| 1095 | |
| 1096 if (! error_state) | |
| 1097 { | |
| 1098 Cell fcell = fval(0).cell_value (); | |
| 1099 | |
| 1100 for (int i = 0; i < fcell.numel (); i++) | |
| 1101 { | |
| 1102 std::string key = fcell(i).string_value (); | |
| 1103 | |
| 1104 if (m.contains (key)) | |
| 1105 m.del (key); | |
| 1106 else | |
| 1107 { | |
| 1108 error ("rmfield: structure does not contain field %s", | |
| 1109 key.c_str ()); | |
| 1110 | |
| 1111 break; | |
| 1112 } | |
| 1113 } | |
| 1114 | |
| 1115 if (! error_state) | |
| 1116 retval = m; | |
| 1117 } | |
| 1118 } | |
| 1119 else | |
| 5823 | 1120 print_usage (); |
| 4817 | 1121 |
| 1122 return retval; | |
| 1123 } | |
| 1124 | |
| 1125 bool | |
| 6974 | 1126 octave_struct::save_ascii (std::ostream& os) |
| 4817 | 1127 { |
| 1128 Octave_map m = map_value (); | |
| 6639 | 1129 os << "# length: " << m.nfields () << "\n"; |
| 4817 | 1130 |
| 1131 Octave_map::iterator i = m.begin (); | |
| 1132 while (i != m.end ()) | |
| 1133 { | |
| 5341 | 1134 octave_value val = map.contents (i); |
| 4817 | 1135 |
| 6974 | 1136 bool b = save_ascii_data (os, val, m.key (i), false, 0); |
| 4817 | 1137 |
| 1138 if (! b) | |
| 1139 return os; | |
| 1140 | |
| 1141 i++; | |
| 1142 } | |
| 1143 | |
| 1144 return true; | |
| 1145 } | |
| 1146 | |
| 1147 bool | |
| 1148 octave_struct::load_ascii (std::istream& is) | |
| 1149 { | |
| 5275 | 1150 octave_idx_type len = 0; |
| 4817 | 1151 bool success = true; |
| 1152 | |
| 1153 if (extract_keyword (is, "length", len) && len >= 0) | |
| 1154 { | |
| 1155 if (len > 0) | |
| 1156 { | |
| 1157 Octave_map m (map); | |
| 1158 | |
| 5275 | 1159 for (octave_idx_type j = 0; j < len; j++) |
| 4817 | 1160 { |
| 1161 octave_value t2; | |
| 1162 bool dummy; | |
| 1163 | |
| 1164 // recurse to read cell elements | |
| 1165 std::string nm | |
| 5756 | 1166 = read_ascii_data (is, std::string (), dummy, t2, j); |
| 4817 | 1167 |
| 1168 if (!is) | |
| 1169 break; | |
| 1170 | |
| 6293 | 1171 Cell tcell = t2.is_cell () ? t2.cell_value () : Cell (t2); |
| 5433 | 1172 |
| 6293 | 1173 if (error_state) |
| 1174 { | |
| 1175 error ("load: internal error loading struct elements"); | |
| 1176 return false; | |
| 1177 } | |
| 5433 | 1178 |
| 6293 | 1179 m.assign (nm, tcell); |
| 4817 | 1180 } |
| 1181 | |
| 1182 if (is) | |
| 1183 map = m; | |
| 1184 else | |
| 1185 { | |
| 1186 error ("load: failed to load structure"); | |
| 1187 success = false; | |
| 1188 } | |
| 1189 } | |
| 1190 else if (len == 0 ) | |
| 6292 | 1191 map = Octave_map (dim_vector (1, 1)); |
| 4817 | 1192 else |
| 1193 panic_impossible (); | |
| 1194 } | |
| 1195 else { | |
| 1196 error ("load: failed to extract number of elements in structure"); | |
| 1197 success = false; | |
| 1198 } | |
| 1199 | |
| 1200 return success; | |
| 1201 } | |
| 1202 | |
| 1203 bool | |
| 1204 octave_struct::save_binary (std::ostream& os, bool& save_as_floats) | |
| 1205 { | |
| 1206 Octave_map m = map_value (); | |
| 1207 | |
| 6639 | 1208 int32_t len = m.nfields (); |
| 5760 | 1209 os.write (reinterpret_cast<char *> (&len), 4); |
| 4817 | 1210 |
| 1211 Octave_map::iterator i = m.begin (); | |
| 1212 while (i != m.end ()) | |
| 1213 { | |
| 5341 | 1214 octave_value val = map.contents (i); |
| 4817 | 1215 |
| 5341 | 1216 bool b = save_binary_data (os, val, m.key (i), "", 0, save_as_floats); |
| 4817 | 1217 |
| 1218 if (! b) | |
| 1219 return os; | |
| 1220 | |
| 1221 i++; | |
| 1222 } | |
| 1223 | |
| 1224 return true; | |
| 1225 } | |
| 1226 | |
| 1227 bool | |
| 1228 octave_struct::load_binary (std::istream& is, bool swap, | |
| 5760 | 1229 oct_mach_info::float_format fmt) |
| 4817 | 1230 { |
| 1231 bool success = true; | |
| 5828 | 1232 int32_t len; |
| 5760 | 1233 if (! is.read (reinterpret_cast<char *> (&len), 4)) |
| 4817 | 1234 return false; |
| 1235 if (swap) | |
| 4944 | 1236 swap_bytes<4> (&len); |
| 4817 | 1237 |
| 1238 if (len > 0) | |
| 1239 { | |
| 1240 Octave_map m (map); | |
| 1241 | |
| 5275 | 1242 for (octave_idx_type j = 0; j < len; j++) |
| 4817 | 1243 { |
| 1244 octave_value t2; | |
| 1245 bool dummy; | |
| 1246 std::string doc; | |
| 1247 | |
| 1248 // recurse to read cell elements | |
| 1249 std::string nm = read_binary_data (is, swap, fmt, std::string (), | |
| 1250 dummy, t2, doc); | |
| 1251 | |
| 1252 if (!is) | |
| 1253 break; | |
| 1254 | |
| 6293 | 1255 Cell tcell = t2.is_cell () ? t2.cell_value () : Cell (t2); |
| 5433 | 1256 |
| 6293 | 1257 if (error_state) |
| 1258 { | |
| 1259 error ("load: internal error loading struct elements"); | |
| 1260 return false; | |
| 1261 } | |
| 5433 | 1262 |
| 6293 | 1263 m.assign (nm, tcell); |
| 4817 | 1264 } |
| 1265 | |
| 1266 if (is) | |
| 1267 map = m; | |
| 1268 else | |
| 1269 { | |
| 1270 error ("load: failed to load structure"); | |
| 1271 success = false; | |
| 1272 } | |
| 1273 } | |
| 1274 else if (len == 0 ) | |
| 6292 | 1275 map = Octave_map (dim_vector (1, 1)); |
| 4817 | 1276 else |
| 1277 panic_impossible (); | |
| 1278 | |
| 1279 return success; | |
| 1280 } | |
| 1281 | |
| 1282 #if defined (HAVE_HDF5) | |
| 1283 | |
| 1284 bool | |
| 1285 octave_struct::save_hdf5 (hid_t loc_id, const char *name, bool save_as_floats) | |
| 1286 { | |
| 1287 hid_t data_hid = -1; | |
| 1288 | |
| 1289 data_hid = H5Gcreate (loc_id, name, 0); | |
| 1290 if (data_hid < 0) return false; | |
| 1291 | |
| 1292 // recursively add each element of the structure to this group | |
| 1293 Octave_map m = map_value (); | |
| 1294 Octave_map::iterator i = m.begin (); | |
| 1295 while (i != m.end ()) | |
| 1296 { | |
| 5341 | 1297 octave_value val = map.contents (i); |
| 4817 | 1298 |
| 5341 | 1299 bool retval2 = add_hdf5_data (data_hid, val, m.key (i), "", false, |
| 4817 | 1300 save_as_floats); |
| 1301 | |
| 1302 if (! retval2) | |
| 1303 break; | |
| 1304 | |
| 1305 i++; | |
| 1306 } | |
| 1307 | |
| 1308 H5Gclose (data_hid); | |
| 4837 | 1309 |
| 4817 | 1310 return true; |
| 1311 } | |
| 1312 | |
| 1313 bool | |
| 1314 octave_struct::load_hdf5 (hid_t loc_id, const char *name, | |
| 1315 bool have_h5giterate_bug) | |
| 1316 { | |
| 1317 bool retval = false; | |
| 1318 | |
| 1319 hdf5_callback_data dsub; | |
| 1320 | |
| 1321 herr_t retval2 = 0; | |
| 6292 | 1322 Octave_map m (dim_vector (1, 1)); |
| 4817 | 1323 int current_item = 0; |
| 1324 #ifdef HAVE_H5GGET_NUM_OBJS | |
| 1325 hsize_t num_obj = 0; | |
| 5060 | 1326 hid_t group_id = H5Gopen (loc_id, name); |
| 1327 H5Gget_num_objs (group_id, &num_obj); | |
| 1328 H5Gclose (group_id); | |
| 4817 | 1329 |
| 1330 while (current_item < static_cast<int> (num_obj) | |
| 1331 && (retval2 = H5Giterate (loc_id, name, ¤t_item, | |
| 1332 hdf5_read_next_data, &dsub)) > 0) | |
| 1333 #else | |
| 1334 while ((retval2 = H5Giterate (loc_id, name, ¤t_item, | |
| 1335 hdf5_read_next_data, &dsub)) > 0) | |
| 1336 #endif | |
| 1337 { | |
| 5342 | 1338 octave_value t2 = dsub.tc; |
| 1339 | |
| 6293 | 1340 Cell tcell = t2.is_cell () ? t2.cell_value () : Cell (t2); |
| 5433 | 1341 |
| 6293 | 1342 if (error_state) |
| 1343 { | |
| 1344 error ("load: internal error loading struct elements"); | |
| 1345 return false; | |
| 1346 } | |
| 5433 | 1347 |
| 6293 | 1348 m.assign (dsub.name, tcell); |
| 5336 | 1349 |
| 4817 | 1350 if (have_h5giterate_bug) |
| 1351 current_item++; // H5Giterate returned the last index processed | |
| 1352 } | |
| 1353 | |
| 1354 if (retval2 >= 0) | |
| 1355 { | |
| 1356 map = m; | |
| 1357 retval = true; | |
| 1358 } | |
| 1359 | |
| 1360 return retval; | |
| 1361 } | |
| 1362 | |
| 4687 | 1363 #endif |
| 1364 | |
| 5900 | 1365 mxArray * |
| 1366 octave_struct::as_mxArray (void) const | |
| 1367 { | |
| 1368 int nf = nfields (); | |
| 1369 string_vector kv = map_keys (); | |
| 6065 | 1370 |
| 1371 OCTAVE_LOCAL_BUFFER (const char *, f, nf); | |
| 1372 | |
| 5900 | 1373 for (int i = 0; i < nf; i++) |
| 6065 | 1374 f[i] = kv[i].c_str (); |
| 5900 | 1375 |
| 1376 mxArray *retval = new mxArray (dims (), nf, f); | |
| 1377 | |
| 1378 mxArray **elts = static_cast<mxArray **> (retval->get_data ()); | |
| 1379 | |
| 6686 | 1380 mwSize nel = numel (); |
| 5900 | 1381 |
| 6686 | 1382 mwSize ntot = nf * nel; |
| 5900 | 1383 |
| 1384 for (int i = 0; i < nf; i++) | |
| 1385 { | |
| 1386 Cell c = map.contents (kv[i]); | |
| 1387 | |
| 1388 const octave_value *p = c.data (); | |
| 1389 | |
| 6686 | 1390 mwIndex k = 0; |
| 1391 for (mwIndex j = i; j < ntot; j += nf) | |
| 5900 | 1392 elts[j] = new mxArray (p[k++]); |
| 1393 } | |
| 1394 | |
| 1395 return retval; | |
| 1396 } | |
| 1397 | |
| 2376 | 1398 /* |
| 1399 ;;; Local Variables: *** | |
| 1400 ;;; mode: C++ *** | |
| 1401 ;;; End: *** | |
| 1402 */ |