Mercurial > hg > octave-lyh
annotate src/oct-stream.cc @ 7736:a059b5679fbb
implement dbstack
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Fri, 25 Apr 2008 15:11:03 -0400 |
| parents | 932b0cf51834 |
| children | 82be108cc558 |
| rev | line source |
|---|---|
| 2117 | 1 /* |
| 2 | |
| 7017 | 3 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
| 4 2005, 2006, 2007 John W. Eaton | |
| 2117 | 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. | |
| 2117 | 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/>. | |
| 2117 | 21 |
| 22 */ | |
| 23 | |
| 24 #ifdef HAVE_CONFIG_H | |
| 25 #include <config.h> | |
| 26 #endif | |
| 27 | |
| 3268 | 28 #include <cassert> |
|
7709
fa41af732801
octave_scan_1: fix reading of hex numbers
Jaroslav Hajek <highegg@gmail.com>
parents:
7538
diff
changeset
|
29 #include <cctype> |
| 2215 | 30 #include <cstring> |
| 31 | |
| 3503 | 32 #include <iomanip> |
| 3559 | 33 #include <fstream> |
| 5765 | 34 #include <sstream> |
| 3535 | 35 #include <string> |
| 2117 | 36 |
| 4944 | 37 #include <Array.h> |
| 38 #include <Array2.h> | |
| 39 #include <Array3.h> | |
| 40 | |
| 41 #include <Array.cc> | |
| 42 | |
| 43 #include "byte-swap.h" | |
| 2117 | 44 #include "lo-ieee.h" |
| 45 #include "lo-mappers.h" | |
| 46 #include "lo-utils.h" | |
| 47 #include "str-vec.h" | |
| 4153 | 48 #include "quit.h" |
| 2117 | 49 |
| 50 #include "error.h" | |
| 7352 | 51 #include "gripes.h" |
| 3342 | 52 #include "input.h" |
| 3775 | 53 #include "oct-stdstrm.h" |
| 2117 | 54 #include "oct-stream.h" |
| 2877 | 55 #include "oct-obj.h" |
| 2117 | 56 #include "utils.h" |
| 57 | |
| 58 // Possible values for conv_err: | |
| 59 // | |
| 60 // 1 : not a real scalar | |
| 2902 | 61 // 2 : value is NaN |
| 62 // 3 : value is not an integer | |
| 2117 | 63 |
| 64 static int | |
| 65 convert_to_valid_int (const octave_value& tc, int& conv_err) | |
| 66 { | |
| 67 int retval = 0; | |
| 68 | |
| 69 conv_err = 0; | |
| 70 | |
| 2902 | 71 double dval = tc.double_value (); |
| 72 | |
| 73 if (! error_state) | |
| 2117 | 74 { |
| 5389 | 75 if (! lo_ieee_isnan (dval)) |
| 2117 | 76 { |
| 2902 | 77 int ival = NINT (dval); |
| 78 | |
| 79 if (ival == dval) | |
| 80 retval = ival; | |
| 2117 | 81 else |
| 82 conv_err = 3; | |
| 83 } | |
| 84 else | |
| 85 conv_err = 2; | |
| 86 } | |
| 87 else | |
| 88 conv_err = 1; | |
| 89 | |
| 90 return retval; | |
| 91 } | |
| 92 | |
| 93 static int | |
| 4468 | 94 get_size (double d, const std::string& who) |
| 2117 | 95 { |
| 96 int retval = -1; | |
| 97 | |
| 5389 | 98 if (! lo_ieee_isnan (d)) |
| 2117 | 99 { |
| 100 if (! xisinf (d)) | |
| 101 { | |
| 3268 | 102 if (d >= 0.0) |
| 2117 | 103 retval = NINT (d); |
| 104 else | |
| 105 ::error ("%s: negative value invalid as size specification", | |
| 4468 | 106 who.c_str ()); |
| 2117 | 107 } |
| 108 else | |
| 109 retval = -1; | |
| 110 } | |
| 111 else | |
| 4468 | 112 ::error ("%s: NaN is invalid as size specification", who.c_str ()); |
| 2117 | 113 |
| 114 return retval; | |
| 115 } | |
| 116 | |
| 117 static void | |
| 5275 | 118 get_size (const Array<double>& size, octave_idx_type& nr, octave_idx_type& nc, bool& one_elt_size_spec, |
| 4468 | 119 const std::string& who) |
| 2117 | 120 { |
| 121 nr = -1; | |
| 122 nc = -1; | |
| 123 | |
| 3268 | 124 one_elt_size_spec = false; |
| 125 | |
| 2117 | 126 double dnr = -1.0; |
| 127 double dnc = -1.0; | |
| 128 | |
| 5275 | 129 octave_idx_type sz_len = size.length (); |
| 3810 | 130 |
| 131 if (sz_len == 1) | |
| 2601 | 132 { |
| 3268 | 133 one_elt_size_spec = true; |
| 134 | |
| 3810 | 135 dnr = size (0); |
| 4293 | 136 |
| 137 dnc = (dnr == 0.0) ? 0.0 : 1.0; | |
| 2601 | 138 } |
| 3810 | 139 else if (sz_len == 2) |
| 2117 | 140 { |
| 3810 | 141 dnr = size (0); |
| 142 | |
| 143 if (! xisinf (dnr)) | |
| 144 dnc = size (1); | |
| 145 else | |
| 4468 | 146 ::error ("%s: invalid size specification", who.c_str ()); |
| 2117 | 147 } |
| 148 else | |
| 4468 | 149 ::error ("%s: invalid size specification", who.c_str ()); |
| 2117 | 150 |
| 151 if (! error_state) | |
| 152 { | |
| 4468 | 153 nr = get_size (dnr, who); |
| 2117 | 154 |
| 3268 | 155 if (! error_state && dnc >= 0.0) |
| 4468 | 156 nc = get_size (dnc, who); |
| 2117 | 157 } |
| 158 } | |
| 159 | |
| 3523 | 160 scanf_format_list::scanf_format_list (const std::string& s) |
| 2117 | 161 : nconv (0), curr_idx (0), list (16), buf (0) |
| 162 { | |
| 163 int num_elts = 0; | |
| 164 | |
| 165 int n = s.length (); | |
| 166 | |
| 167 int i = 0; | |
| 168 | |
| 2215 | 169 int width = 0; |
| 2117 | 170 bool discard = false; |
| 171 char modifier = '\0'; | |
| 172 char type = '\0'; | |
| 173 | |
| 174 bool have_more = true; | |
| 175 | |
| 176 while (i < n) | |
| 177 { | |
| 178 have_more = true; | |
| 179 | |
| 180 if (! buf) | |
| 5765 | 181 buf = new std::ostringstream (); |
| 2117 | 182 |
| 183 if (s[i] == '%') | |
| 184 { | |
| 3483 | 185 // Process percent-escape conversion type. |
| 186 | |
| 2215 | 187 process_conversion (s, i, n, width, discard, type, modifier, |
| 188 num_elts); | |
| 2117 | 189 have_more = (buf != 0); |
| 190 } | |
| 3483 | 191 else if (isspace (s[i])) |
| 2117 | 192 { |
| 3483 | 193 type = scanf_format_elt::whitespace_conversion; |
| 194 | |
| 2215 | 195 width = 0; |
| 2117 | 196 discard = false; |
| 197 modifier = '\0'; | |
| 3483 | 198 *buf << " "; |
| 199 | |
| 200 while (++i < n && isspace (s[i])) | |
| 201 /* skip whitespace */; | |
| 202 | |
| 203 add_elt_to_list (width, discard, type, modifier, num_elts); | |
| 204 | |
| 205 have_more = false; | |
| 206 } | |
| 207 else | |
| 208 { | |
| 209 type = scanf_format_elt::literal_conversion; | |
| 210 | |
| 211 width = 0; | |
| 212 discard = false; | |
| 213 modifier = '\0'; | |
| 214 | |
| 215 while (i < n && ! isspace (s[i]) && s[i] != '%') | |
| 216 *buf << s[i++]; | |
| 217 | |
| 218 add_elt_to_list (width, discard, type, modifier, num_elts); | |
| 219 | |
| 220 have_more = false; | |
| 2117 | 221 } |
| 222 | |
| 223 if (nconv < 0) | |
| 224 { | |
| 225 have_more = false; | |
| 226 break; | |
| 227 } | |
| 228 } | |
| 229 | |
| 230 if (have_more) | |
| 2215 | 231 add_elt_to_list (width, discard, type, modifier, num_elts); |
| 2117 | 232 |
| 233 list.resize (num_elts); | |
| 234 | |
| 235 delete buf; | |
| 236 } | |
| 237 | |
| 238 scanf_format_list::~scanf_format_list (void) | |
| 239 { | |
| 5275 | 240 octave_idx_type n = list.length (); |
| 241 | |
| 242 for (octave_idx_type i = 0; i < n; i++) | |
| 2117 | 243 { |
| 3340 | 244 scanf_format_elt *elt = list(i); |
| 2117 | 245 delete elt; |
| 246 } | |
| 247 } | |
| 248 | |
| 249 void | |
| 2215 | 250 scanf_format_list::add_elt_to_list (int width, bool discard, char type, |
| 3483 | 251 char modifier, int& num_elts, |
| 3523 | 252 const std::string& char_class) |
| 2117 | 253 { |
| 254 if (buf) | |
| 255 { | |
| 5765 | 256 std::string text = buf->str (); |
| 4051 | 257 |
| 258 if (! text.empty ()) | |
| 2117 | 259 { |
| 4051 | 260 scanf_format_elt *elt |
| 261 = new scanf_format_elt (text.c_str (), width, discard, type, | |
| 262 modifier, char_class); | |
| 263 | |
| 264 if (num_elts == list.length ()) | |
| 265 list.resize (2 * num_elts); | |
| 266 | |
| 267 list(num_elts++) = elt; | |
| 2117 | 268 } |
| 269 | |
| 270 delete buf; | |
| 271 buf = 0; | |
| 272 } | |
| 273 } | |
| 274 | |
| 3535 | 275 static std::string |
| 3523 | 276 expand_char_class (const std::string& s) |
| 3483 | 277 { |
| 3523 | 278 std::string retval; |
| 3483 | 279 |
| 280 size_t len = s.length (); | |
| 281 | |
| 282 size_t i = 0; | |
| 283 | |
| 284 while (i < len) | |
| 285 { | |
| 286 unsigned char c = s[i++]; | |
| 287 | |
| 288 if (c == '-' && i > 1 && i < len | |
| 5760 | 289 && static_cast<unsigned char> (s[i-2]) <= static_cast<unsigned char> (s[i])) |
| 3483 | 290 { |
| 291 // Add all characters from the range except the first (we | |
| 292 // already added it below). | |
| 293 | |
| 294 for (c = s[i-2]+1; c < s[i]; c++) | |
| 295 retval += c; | |
| 296 } | |
| 297 else | |
| 298 { | |
| 299 // Add the character to the class. Only add '-' if it is | |
| 300 // the last character in the class. | |
| 301 | |
| 302 if (c != '-' || i == len) | |
| 303 retval += c; | |
| 304 } | |
| 305 } | |
| 306 | |
| 307 return retval; | |
| 308 } | |
| 309 | |
| 2117 | 310 void |
| 3523 | 311 scanf_format_list::process_conversion (const std::string& s, int& i, int n, |
| 2215 | 312 int& width, bool& discard, char& type, |
| 2117 | 313 char& modifier, int& num_elts) |
| 314 { | |
| 2215 | 315 width = 0; |
| 2117 | 316 discard = false; |
| 317 modifier = '\0'; | |
| 318 type = '\0'; | |
| 319 | |
| 320 *buf << s[i++]; | |
| 321 | |
| 322 bool have_width = false; | |
| 323 | |
| 324 while (i < n) | |
| 325 { | |
| 326 switch (s[i]) | |
| 327 { | |
| 328 case '*': | |
| 329 if (discard) | |
| 330 nconv = -1; | |
| 331 else | |
| 332 { | |
| 333 discard = true; | |
| 334 *buf << s[i++]; | |
| 335 } | |
| 336 break; | |
| 337 | |
| 338 case '0': case '1': case '2': case '3': case '4': | |
| 339 case '5': case '6': case '7': case '8': case '9': | |
| 340 if (have_width) | |
| 341 nconv = -1; | |
| 342 else | |
| 343 { | |
| 2215 | 344 char c = s[i++]; |
| 345 width = width * 10 + c - '0'; | |
| 2117 | 346 have_width = true; |
| 2215 | 347 *buf << c; |
| 2117 | 348 while (i < n && isdigit (s[i])) |
| 2215 | 349 { |
| 350 c = s[i++]; | |
| 351 width = width * 10 + c - '0'; | |
| 352 *buf << c; | |
| 353 } | |
| 2117 | 354 } |
| 355 break; | |
| 356 | |
| 357 case 'h': case 'l': case 'L': | |
| 358 if (modifier != '\0') | |
| 359 nconv = -1; | |
| 360 else | |
| 2663 | 361 modifier = s[i++]; |
| 2117 | 362 break; |
| 363 | |
| 364 case 'd': case 'i': case 'o': case 'u': case 'x': | |
| 365 if (modifier == 'L') | |
| 366 { | |
| 367 nconv = -1; | |
| 368 break; | |
| 369 } | |
| 370 goto fini; | |
| 371 | |
| 372 case 'e': case 'f': case 'g': | |
| 373 if (modifier == 'h') | |
| 374 { | |
| 375 nconv = -1; | |
| 376 break; | |
| 377 } | |
| 2663 | 378 |
| 379 // No float or long double conversions, thanks. | |
| 380 *buf << 'l'; | |
| 381 | |
| 2117 | 382 goto fini; |
| 383 | |
| 384 case 'c': case 's': case 'p': case '%': case '[': | |
| 385 if (modifier != '\0') | |
| 386 { | |
| 387 nconv = -1; | |
| 388 break; | |
| 389 } | |
| 390 goto fini; | |
| 391 | |
| 392 fini: | |
| 393 { | |
| 2215 | 394 if (finish_conversion (s, i, n, width, discard, type, |
| 2117 | 395 modifier, num_elts) == 0) |
| 396 return; | |
| 397 } | |
| 398 break; | |
| 399 | |
| 400 default: | |
| 401 nconv = -1; | |
| 402 break; | |
| 403 } | |
| 404 | |
| 405 if (nconv < 0) | |
| 406 break; | |
| 407 } | |
| 408 | |
| 409 nconv = -1; | |
| 410 } | |
| 411 | |
| 412 int | |
| 3523 | 413 scanf_format_list::finish_conversion (const std::string& s, int& i, int n, |
| 2215 | 414 int& width, bool discard, char& type, |
| 2117 | 415 char modifier, int& num_elts) |
| 416 { | |
| 417 int retval = 0; | |
| 418 | |
| 3523 | 419 std::string char_class; |
| 3483 | 420 |
| 3640 | 421 int beg_idx = -1; |
| 422 int end_idx = -1; | |
| 423 | |
| 2117 | 424 if (s[i] == '%') |
| 3640 | 425 { |
| 426 type = '%'; | |
| 427 *buf << s[i++]; | |
| 428 } | |
| 2117 | 429 else |
| 430 { | |
| 431 type = s[i]; | |
| 432 | |
| 433 if (s[i] == '[') | |
| 434 { | |
| 435 *buf << s[i++]; | |
| 436 | |
| 437 if (i < n) | |
| 438 { | |
| 3483 | 439 beg_idx = i; |
| 440 | |
| 2117 | 441 if (s[i] == '^') |
| 442 { | |
| 443 type = '^'; | |
| 444 *buf << s[i++]; | |
| 3483 | 445 |
| 446 if (i < n) | |
| 447 { | |
| 448 beg_idx = i; | |
| 449 | |
| 450 if (s[i] == ']') | |
| 451 *buf << s[i++]; | |
| 452 } | |
| 2117 | 453 } |
| 454 else if (s[i] == ']') | |
| 455 *buf << s[i++]; | |
| 456 } | |
| 457 | |
| 458 while (i < n && s[i] != ']') | |
| 459 *buf << s[i++]; | |
| 460 | |
| 461 if (i < n && s[i] == ']') | |
| 3483 | 462 { |
| 463 end_idx = i-1; | |
| 464 *buf << s[i++]; | |
| 465 } | |
| 2117 | 466 |
| 467 if (s[i-1] != ']') | |
| 468 retval = nconv = -1; | |
| 469 } | |
| 470 else | |
| 2215 | 471 *buf << s[i++]; |
| 3640 | 472 } |
| 473 | |
| 474 nconv++; | |
| 475 | |
| 476 if (nconv > 0) | |
| 477 { | |
| 478 if (beg_idx >= 0 && end_idx >= 0) | |
| 479 char_class = expand_char_class (s.substr (beg_idx, | |
| 480 end_idx - beg_idx + 1)); | |
| 481 | |
| 482 add_elt_to_list (width, discard, type, modifier, num_elts, char_class); | |
| 2117 | 483 } |
| 484 | |
| 485 return retval; | |
| 486 } | |
| 487 | |
| 488 void | |
| 489 scanf_format_list::printme (void) const | |
| 490 { | |
| 491 int n = list.length (); | |
| 492 | |
| 493 for (int i = 0; i < n; i++) | |
| 494 { | |
| 3340 | 495 scanf_format_elt *elt = list(i); |
| 2117 | 496 |
| 3531 | 497 std::cerr |
| 498 << "width: " << elt->width << "\n" | |
| 499 << "discard: " << elt->discard << "\n" | |
| 500 << "type: "; | |
| 3483 | 501 |
| 502 if (elt->type == scanf_format_elt::literal_conversion) | |
| 3531 | 503 std::cerr << "literal text\n"; |
| 3483 | 504 else if (elt->type == scanf_format_elt::whitespace_conversion) |
| 3531 | 505 std::cerr << "whitespace\n"; |
| 3483 | 506 else |
| 3531 | 507 std::cerr << elt->type << "\n"; |
| 508 | |
| 509 std::cerr | |
| 510 << "modifier: " << elt->modifier << "\n" | |
| 511 << "char_class: `" << undo_string_escapes (elt->char_class) << "'\n" | |
| 512 << "text: `" << undo_string_escapes (elt->text) << "'\n\n"; | |
| 2117 | 513 } |
| 514 } | |
| 515 | |
| 516 bool | |
| 517 scanf_format_list::all_character_conversions (void) | |
| 518 { | |
| 519 int n = list.length (); | |
| 520 | |
| 521 if (n > 0) | |
| 522 { | |
| 523 for (int i = 0; i < n; i++) | |
| 524 { | |
| 3340 | 525 scanf_format_elt *elt = list(i); |
| 2117 | 526 |
| 527 switch (elt->type) | |
| 528 { | |
| 3483 | 529 case 'c': case 's': case '%': case '[': case '^': |
| 530 case scanf_format_elt::literal_conversion: | |
| 531 case scanf_format_elt::whitespace_conversion: | |
| 2117 | 532 break; |
| 533 | |
| 534 default: | |
| 535 return false; | |
| 536 break; | |
| 537 } | |
| 538 } | |
| 539 | |
| 540 return true; | |
| 541 } | |
| 542 else | |
| 543 return false; | |
| 544 } | |
| 545 | |
| 546 bool | |
| 547 scanf_format_list::all_numeric_conversions (void) | |
| 548 { | |
| 549 int n = list.length (); | |
| 550 | |
| 551 if (n > 0) | |
| 552 { | |
| 553 for (int i = 0; i < n; i++) | |
| 554 { | |
| 3340 | 555 scanf_format_elt *elt = list(i); |
| 2117 | 556 |
| 557 switch (elt->type) | |
| 558 { | |
| 559 case 'd': case 'i': case 'o': case 'u': case 'x': | |
| 560 case 'e': case 'f': case 'g': | |
| 561 break; | |
| 562 | |
| 563 default: | |
| 564 return false; | |
| 565 break; | |
| 566 } | |
| 567 } | |
| 568 | |
| 569 return true; | |
| 570 } | |
| 571 else | |
| 572 return false; | |
| 573 } | |
| 574 | |
| 575 // Ugh again. | |
| 576 | |
| 3523 | 577 printf_format_list::printf_format_list (const std::string& s) |
| 2117 | 578 : nconv (0), curr_idx (0), list (16), buf (0) |
| 579 { | |
| 580 int num_elts = 0; | |
| 581 | |
| 582 int n = s.length (); | |
| 583 | |
| 584 int i = 0; | |
| 585 | |
| 586 int args = 0; | |
| 3643 | 587 std::string flags; |
| 3640 | 588 int fw = 0; |
| 589 int prec = 0; | |
| 2117 | 590 char modifier = '\0'; |
| 591 char type = '\0'; | |
| 592 | |
| 593 bool have_more = true; | |
| 3640 | 594 bool empty_buf = true; |
| 2117 | 595 |
| 4223 | 596 if (n == 0) |
| 2117 | 597 { |
| 4223 | 598 printf_format_elt *elt |
| 599 = new printf_format_elt ("", args, fw, prec, flags, type, modifier); | |
| 600 | |
| 601 list(num_elts++) = elt; | |
| 602 | |
| 603 list.resize (num_elts); | |
| 604 } | |
| 605 else | |
| 606 { | |
| 607 while (i < n) | |
| 3640 | 608 { |
| 4223 | 609 have_more = true; |
| 610 | |
| 611 if (! buf) | |
| 612 { | |
| 5765 | 613 buf = new std::ostringstream (); |
| 4223 | 614 empty_buf = true; |
| 615 } | |
| 616 | |
| 617 switch (s[i]) | |
| 618 { | |
| 619 case '%': | |
| 3640 | 620 { |
| 4223 | 621 if (empty_buf) |
| 622 { | |
| 623 process_conversion (s, i, n, args, flags, fw, prec, | |
| 624 type, modifier, num_elts); | |
| 625 | |
| 626 have_more = (buf != 0); | |
| 627 } | |
| 628 else | |
| 629 add_elt_to_list (args, flags, fw, prec, type, modifier, | |
| 630 num_elts); | |
| 3640 | 631 } |
| 4223 | 632 break; |
| 633 | |
| 634 default: | |
| 635 { | |
| 636 args = 0; | |
| 637 flags = ""; | |
| 638 fw = 0; | |
| 639 prec = 0; | |
| 640 modifier = '\0'; | |
| 641 type = '\0'; | |
| 642 *buf << s[i++]; | |
| 643 empty_buf = false; | |
| 644 } | |
| 645 break; | |
| 646 } | |
| 647 | |
| 648 if (nconv < 0) | |
| 649 { | |
| 650 have_more = false; | |
| 651 break; | |
| 652 } | |
| 2117 | 653 } |
| 654 | |
| 4223 | 655 if (have_more) |
| 656 add_elt_to_list (args, flags, fw, prec, type, modifier, num_elts); | |
| 657 | |
| 658 list.resize (num_elts); | |
| 659 | |
| 660 delete buf; | |
| 2117 | 661 } |
| 662 } | |
| 663 | |
| 664 printf_format_list::~printf_format_list (void) | |
| 665 { | |
| 666 int n = list.length (); | |
| 667 | |
| 668 for (int i = 0; i < n; i++) | |
| 669 { | |
| 3340 | 670 printf_format_elt *elt = list(i); |
| 2117 | 671 delete elt; |
| 672 } | |
| 673 } | |
| 674 | |
| 675 void | |
| 3640 | 676 printf_format_list::add_elt_to_list (int args, const std::string& flags, |
| 677 int fw, int prec, char type, | |
| 678 char modifier, int& num_elts) | |
| 2117 | 679 { |
| 680 if (buf) | |
| 681 { | |
| 5765 | 682 std::string text = buf->str (); |
| 4051 | 683 |
| 684 if (! text.empty ()) | |
| 2117 | 685 { |
| 4051 | 686 printf_format_elt *elt |
| 687 = new printf_format_elt (text.c_str (), args, fw, prec, flags, | |
| 688 type, modifier); | |
| 689 | |
| 690 if (num_elts == list.length ()) | |
| 691 list.resize (2 * num_elts); | |
| 692 | |
| 693 list(num_elts++) = elt; | |
| 2117 | 694 } |
| 695 | |
| 696 delete buf; | |
| 697 buf = 0; | |
| 698 } | |
| 699 } | |
| 700 | |
| 701 void | |
| 3640 | 702 printf_format_list::process_conversion |
| 703 (const std::string& s, int& i, int n, int& args, std::string& flags, | |
| 704 int& fw, int& prec, char& modifier, char& type, int& num_elts) | |
| 2117 | 705 { |
| 706 args = 0; | |
| 3640 | 707 flags = ""; |
| 708 fw = 0; | |
| 709 prec = 0; | |
| 2117 | 710 modifier = '\0'; |
| 711 type = '\0'; | |
| 712 | |
| 713 *buf << s[i++]; | |
| 714 | |
| 4587 | 715 bool nxt = false; |
| 2117 | 716 |
| 717 while (i < n) | |
| 718 { | |
| 719 switch (s[i]) | |
| 720 { | |
| 721 case '-': case '+': case ' ': case '0': case '#': | |
| 3640 | 722 flags += s[i]; |
| 2117 | 723 *buf << s[i++]; |
| 724 break; | |
| 725 | |
| 726 default: | |
| 4587 | 727 nxt = true; |
| 2117 | 728 break; |
| 729 } | |
| 730 | |
| 4587 | 731 if (nxt) |
| 2117 | 732 break; |
| 733 } | |
| 734 | |
| 735 if (i < n) | |
| 736 { | |
| 737 if (s[i] == '*') | |
| 738 { | |
| 3640 | 739 fw = -1; |
| 2117 | 740 args++; |
| 741 *buf << s[i++]; | |
| 742 } | |
| 743 else | |
| 744 { | |
| 3640 | 745 if (isdigit (s[i])) |
| 746 { | |
| 4587 | 747 int nn = 0; |
| 3643 | 748 std::string tmp = s.substr (i); |
| 4587 | 749 sscanf (tmp.c_str (), "%d%n", &fw, &nn); |
| 3640 | 750 } |
| 751 | |
| 2117 | 752 while (i < n && isdigit (s[i])) |
| 753 *buf << s[i++]; | |
| 754 } | |
| 755 } | |
| 756 | |
| 757 if (i < n && s[i] == '.') | |
| 758 { | |
| 759 *buf << s[i++]; | |
| 760 | |
| 761 if (i < n) | |
| 762 { | |
| 763 if (s[i] == '*') | |
| 764 { | |
| 3640 | 765 prec = -1; |
| 2117 | 766 args++; |
| 767 *buf << s[i++]; | |
| 768 } | |
| 769 else | |
| 770 { | |
| 3640 | 771 if (isdigit (s[i])) |
| 772 { | |
| 4587 | 773 int nn = 0; |
| 3643 | 774 std::string tmp = s.substr (i); |
| 4587 | 775 sscanf (tmp.c_str (), "%d%n", &prec, &nn); |
| 3640 | 776 } |
| 777 | |
| 2117 | 778 while (i < n && isdigit (s[i])) |
| 779 *buf << s[i++]; | |
| 780 } | |
| 781 } | |
| 782 } | |
| 783 | |
| 784 if (i < n) | |
| 785 { | |
| 786 switch (s[i]) | |
| 787 { | |
| 788 case 'h': case 'l': case 'L': | |
| 789 modifier = s[i]; | |
| 790 *buf << s[i++]; | |
| 791 break; | |
| 792 | |
| 793 default: | |
| 794 break; | |
| 795 } | |
| 796 } | |
| 797 | |
| 798 if (i < n) | |
| 3640 | 799 finish_conversion (s, i, args, flags, fw, prec, modifier, type, num_elts); |
| 2117 | 800 else |
| 801 nconv = -1; | |
| 802 } | |
| 803 | |
| 804 void | |
| 3640 | 805 printf_format_list::finish_conversion |
| 806 (const std::string& s, int& i, int args, const std::string& flags, | |
| 807 int fw, int prec, char modifier, char& type, int& num_elts) | |
| 2117 | 808 |
| 809 { | |
| 810 switch (s[i]) | |
| 811 { | |
| 812 case 'd': case 'i': case 'o': case 'x': case 'X': | |
| 813 case 'u': case 'c': | |
| 814 if (modifier == 'L') | |
| 815 { | |
| 816 nconv = -1; | |
| 817 break; | |
| 818 } | |
| 819 goto fini; | |
| 820 | |
| 821 case 'f': case 'e': case 'E': case 'g': case 'G': | |
| 822 if (modifier == 'h' || modifier == 'l') | |
| 823 { | |
| 824 nconv = -1; | |
| 825 break; | |
| 826 } | |
| 827 goto fini; | |
| 828 | |
| 829 case 's': case 'p': case '%': | |
| 830 if (modifier != '\0') | |
| 831 { | |
| 832 nconv = -1; | |
| 833 break; | |
| 834 } | |
| 835 goto fini; | |
| 836 | |
| 837 fini: | |
| 838 | |
| 3640 | 839 type = s[i]; |
| 840 | |
| 841 *buf << s[i++]; | |
| 842 | |
| 843 if (type != '%' || args != 0) | |
| 844 nconv++; | |
| 845 | |
| 846 if (type != '%') | |
| 847 args++; | |
| 848 | |
| 849 add_elt_to_list (args, flags, fw, prec, type, modifier, num_elts); | |
| 850 | |
| 2117 | 851 break; |
| 852 | |
| 853 default: | |
| 854 nconv = -1; | |
| 855 break; | |
| 856 } | |
| 857 } | |
| 858 | |
| 859 void | |
| 860 printf_format_list::printme (void) const | |
| 861 { | |
| 862 int n = list.length (); | |
| 863 | |
| 864 for (int i = 0; i < n; i++) | |
| 865 { | |
| 3340 | 866 printf_format_elt *elt = list(i); |
| 2117 | 867 |
| 3640 | 868 std::cerr |
| 869 << "args: " << elt->args << "\n" | |
| 870 << "flags: `" << elt->flags << "'\n" | |
| 871 << "width: " << elt->fw << "\n" | |
| 872 << "prec: " << elt->prec << "\n" | |
| 873 << "type: `" << elt->type << "'\n" | |
| 874 << "modifier: `" << elt->modifier << "'\n" | |
| 875 << "text: `" << undo_string_escapes (elt->text) << "'\n\n"; | |
| 2117 | 876 } |
| 877 } | |
| 878 | |
| 3145 | 879 int |
| 3148 | 880 octave_base_stream::file_number (void) |
| 3145 | 881 { |
| 882 // Kluge alert! | |
| 883 | |
| 884 if (name () == "stdin") | |
| 885 return 0; | |
| 886 | |
| 887 if (name () == "stdout") | |
| 888 return 1; | |
| 889 | |
| 890 if (name () == "stderr") | |
| 891 return 2; | |
| 892 | |
| 893 int retval = -1; | |
| 894 | |
| 3523 | 895 std::istream *is = input_stream (); |
| 896 std::ostream *os = output_stream (); | |
| 3145 | 897 |
| 3775 | 898 // There is no standard way to get the underlying file descriptor from |
| 899 // std::filebuf (nor in the GNU libstdc++-v3 implementation). We cache | |
| 900 // the descriptor in c_file_ptr_buf, and then extract it here. | |
| 901 | |
| 6757 | 902 c_file_ptr_buf *ibuf |
| 903 = is ? dynamic_cast<c_file_ptr_buf *> (is->rdbuf ()) : 0; | |
| 904 | |
| 905 c_file_ptr_buf *obuf | |
| 906 = os ? dynamic_cast<c_file_ptr_buf *> (os->rdbuf ()) : 0; | |
| 3775 | 907 |
| 908 int i_fid = ibuf ? ibuf->file_number () : -1; | |
| 909 int o_fid = obuf ? obuf->file_number () : -1; | |
| 3145 | 910 |
| 911 if (i_fid >= 0) | |
| 912 { | |
| 913 if (o_fid >= 0) | |
| 914 retval = (i_fid == o_fid) ? i_fid : -1; | |
| 915 else | |
| 916 retval = i_fid; | |
| 917 } | |
| 918 else if (o_fid >= 0) | |
| 919 retval = o_fid; | |
| 920 | |
| 921 return retval; | |
| 922 } | |
| 923 | |
| 2117 | 924 void |
| 3523 | 925 octave_base_stream::error (const std::string& msg) |
| 2117 | 926 { |
| 927 fail = true; | |
| 928 errmsg = msg; | |
| 929 } | |
| 930 | |
| 931 void | |
| 4468 | 932 octave_base_stream::error (const std::string& who, const std::string& msg) |
| 933 { | |
| 934 fail = true; | |
| 6296 | 935 errmsg = who + ": " + msg; |
| 4468 | 936 } |
| 937 | |
| 938 void | |
| 2117 | 939 octave_base_stream::clear (void) |
| 940 { | |
| 4889 | 941 fail = false; |
| 942 errmsg = ""; | |
| 943 } | |
| 944 | |
| 945 void | |
| 946 octave_base_stream::clearerr (void) | |
| 947 { | |
| 4888 | 948 std::istream *is = input_stream (); |
| 949 std::ostream *os = output_stream (); | |
| 950 | |
| 951 if (is) | |
| 952 is->clear (); | |
| 953 | |
| 954 if (os) | |
| 955 os->clear (); | |
| 2117 | 956 } |
| 957 | |
| 958 // Functions that are defined for all input streams (input streams | |
| 959 // are those that define is). | |
| 960 | |
| 3536 | 961 std::string |
| 5275 | 962 octave_base_stream::do_gets (octave_idx_type max_len, bool& err, |
| 4468 | 963 bool strip_newline, const std::string& who) |
| 2117 | 964 { |
| 3523 | 965 std::string retval; |
| 2117 | 966 |
| 967 err = false; | |
| 968 | |
| 3523 | 969 std::istream *isp = input_stream (); |
| 2117 | 970 |
| 971 if (isp) | |
| 972 { | |
| 3523 | 973 std::istream& is = *isp; |
| 2117 | 974 |
| 5765 | 975 std::ostringstream buf; |
| 2117 | 976 |
| 977 int c = 0; | |
| 3553 | 978 int char_count = 0; |
| 6345 | 979 |
| 980 if (max_len != 0) | |
| 2117 | 981 { |
| 6345 | 982 while (is && (c = is.get ()) != EOF) |
| 2117 | 983 { |
| 6345 | 984 char_count++; |
| 985 | |
| 986 if (c == '\n') | |
| 987 { | |
| 988 if (! strip_newline) | |
| 989 buf << static_cast<char> (c); | |
| 990 | |
| 991 break; | |
| 992 } | |
| 993 else | |
| 5760 | 994 buf << static_cast<char> (c); |
| 6345 | 995 |
| 996 if (max_len > 0 && char_count == max_len) | |
| 997 break; | |
| 2117 | 998 } |
| 6345 | 999 } |
| 1000 | |
| 1001 if (! is.eof () && char_count > 0) | |
| 1002 { | |
| 1003 // GAGME. Matlab seems to check for EOF even if the last | |
| 1004 // character in a file is a newline character. This is NOT | |
| 1005 // what the corresponding C-library functions do. | |
| 1006 int disgusting_compatibility_hack = is.get (); | |
| 1007 if (! is.eof ()) | |
| 1008 is.putback (disgusting_compatibility_hack); | |
| 2117 | 1009 } |
| 1010 | |
| 4224 | 1011 if (is.good () || (is.eof () && char_count > 0)) |
| 5765 | 1012 retval = buf.str (); |
| 4224 | 1013 else |
| 1014 { | |
| 1015 err = true; | |
| 4468 | 1016 |
| 4224 | 1017 if (is.eof () && char_count == 0) |
| 4468 | 1018 error (who, "at end of file"); |
| 4224 | 1019 else |
| 4468 | 1020 error (who, "read error"); |
| 4224 | 1021 } |
| 2117 | 1022 } |
| 1023 else | |
| 1024 { | |
| 1025 err = true; | |
| 4468 | 1026 invalid_operation (who, "reading"); |
| 2117 | 1027 } |
| 1028 | |
| 1029 return retval; | |
| 1030 } | |
| 1031 | |
| 3536 | 1032 std::string |
| 5275 | 1033 octave_base_stream::getl (octave_idx_type max_len, bool& err, const std::string& who) |
| 2117 | 1034 { |
| 4468 | 1035 return do_gets (max_len, err, true, who); |
| 2117 | 1036 } |
| 1037 | |
| 3536 | 1038 std::string |
| 5275 | 1039 octave_base_stream::gets (octave_idx_type max_len, bool& err, const std::string& who) |
| 2117 | 1040 { |
| 4468 | 1041 return do_gets (max_len, err, false, who); |
| 2117 | 1042 } |
| 1043 | |
| 3640 | 1044 #define OCTAVE_SCAN(is, fmt, arg) octave_scan (is, fmt, arg) |
| 3636 | 1045 |
| 1046 template <class T> | |
| 1047 std::istream& | |
| 6767 | 1048 octave_scan_1 (std::istream& is, const scanf_format_elt& fmt, T* valptr) |
| 3636 | 1049 { |
| 3779 | 1050 T& ref = *valptr; |
| 1051 | |
| 1052 switch (fmt.type) | |
| 1053 { | |
| 1054 case 'o': | |
| 4926 | 1055 is >> std::oct >> ref >> std::dec; |
| 3779 | 1056 break; |
| 1057 | |
| 1058 case 'x': | |
| 4926 | 1059 is >> std::hex >> ref >> std::dec; |
| 1060 break; | |
| 1061 | |
| 1062 case 'i': | |
| 1063 { | |
| 1064 int c1 = is.get (); | |
| 1065 | |
| 1066 if (! is.eof ()) | |
| 1067 { | |
| 1068 if (c1 == '0') | |
| 1069 { | |
|
7709
fa41af732801
octave_scan_1: fix reading of hex numbers
Jaroslav Hajek <highegg@gmail.com>
parents:
7538
diff
changeset
|
1070 int c2 = is.peek (); |
| 4926 | 1071 |
| 1072 if (c2 == 'x' || c2 == 'X') | |
|
7709
fa41af732801
octave_scan_1: fix reading of hex numbers
Jaroslav Hajek <highegg@gmail.com>
parents:
7538
diff
changeset
|
1073 { |
|
fa41af732801
octave_scan_1: fix reading of hex numbers
Jaroslav Hajek <highegg@gmail.com>
parents:
7538
diff
changeset
|
1074 is.ignore (); |
|
fa41af732801
octave_scan_1: fix reading of hex numbers
Jaroslav Hajek <highegg@gmail.com>
parents:
7538
diff
changeset
|
1075 if (std::isxdigit (is.peek ())) |
|
fa41af732801
octave_scan_1: fix reading of hex numbers
Jaroslav Hajek <highegg@gmail.com>
parents:
7538
diff
changeset
|
1076 is >> std::hex >> ref >> std::dec; |
|
fa41af732801
octave_scan_1: fix reading of hex numbers
Jaroslav Hajek <highegg@gmail.com>
parents:
7538
diff
changeset
|
1077 else |
|
fa41af732801
octave_scan_1: fix reading of hex numbers
Jaroslav Hajek <highegg@gmail.com>
parents:
7538
diff
changeset
|
1078 ref = 0; |
|
fa41af732801
octave_scan_1: fix reading of hex numbers
Jaroslav Hajek <highegg@gmail.com>
parents:
7538
diff
changeset
|
1079 } |
| 4926 | 1080 else |
| 4927 | 1081 { |
| 1082 if (c2 == '0' || c2 == '1' || c2 == '2' | |
| 1083 || c2 == '3' || c2 == '4' || c2 == '5' | |
| 1084 || c2 == '6' || c2 == '7') | |
| 1085 is >> std::oct >> ref >> std::dec; | |
| 1086 else | |
| 1087 ref = 0; | |
| 1088 } | |
| 4926 | 1089 } |
| 1090 else | |
| 1091 { | |
| 1092 is.putback (c1); | |
| 1093 | |
| 1094 is >> ref; | |
| 1095 } | |
| 1096 } | |
| 1097 } | |
| 3779 | 1098 break; |
| 1099 | |
| 1100 default: | |
| 1101 is >> ref; | |
| 1102 break; | |
| 1103 } | |
| 3639 | 1104 |
| 3638 | 1105 return is; |
| 3636 | 1106 } |
| 1107 | |
| 6767 | 1108 template <class T> |
| 1109 std::istream& | |
| 1110 octave_scan (std::istream& is, const scanf_format_elt& fmt, T* valptr) | |
| 1111 { | |
| 1112 if (fmt.width) | |
| 1113 { | |
| 1114 // Limit input to fmt.width characters by reading into a | |
| 1115 // temporary stringstream buffer. | |
| 1116 | |
| 1117 std::string tmp; | |
| 1118 | |
| 1119 is.width (fmt.width); | |
| 1120 is >> tmp; | |
| 1121 | |
| 1122 std::istringstream ss (tmp); | |
| 1123 | |
| 1124 octave_scan_1 (ss, fmt, valptr); | |
| 1125 } | |
| 1126 else | |
| 1127 octave_scan_1 (is, fmt, valptr); | |
| 1128 | |
| 1129 return is; | |
| 1130 } | |
| 1131 | |
| 3779 | 1132 // Note that this specialization is only used for reading characters, not |
| 1133 // character strings. See BEGIN_S_CONVERSION for details. | |
| 1134 | |
| 1135 template<> | |
| 1136 std::istream& | |
| 4661 | 1137 octave_scan<> (std::istream& is, const scanf_format_elt& /* fmt */, |
| 1138 char* valptr) | |
| 3779 | 1139 { |
| 1140 return is >> valptr; | |
| 1141 } | |
| 3636 | 1142 |
| 4595 | 1143 template std::istream& |
| 1144 octave_scan (std::istream&, const scanf_format_elt&, int*); | |
| 1145 | |
| 1146 template std::istream& | |
| 1147 octave_scan (std::istream&, const scanf_format_elt&, long int*); | |
| 1148 | |
| 1149 template std::istream& | |
| 1150 octave_scan (std::istream&, const scanf_format_elt&, short int*); | |
| 1151 | |
| 1152 template std::istream& | |
| 1153 octave_scan (std::istream&, const scanf_format_elt&, unsigned int*); | |
| 1154 | |
| 1155 template std::istream& | |
| 1156 octave_scan (std::istream&, const scanf_format_elt&, unsigned long int*); | |
| 1157 | |
| 1158 template std::istream& | |
| 1159 octave_scan (std::istream&, const scanf_format_elt&, unsigned short int*); | |
| 1160 | |
| 1161 #if 0 | |
| 1162 template std::istream& | |
| 1163 octave_scan (std::istream&, const scanf_format_elt&, float*); | |
| 1164 #endif | |
| 1165 | |
| 5403 | 1166 template<> |
| 5176 | 1167 std::istream& |
| 5403 | 1168 octave_scan<> (std::istream& is, const scanf_format_elt& fmt, double* valptr) |
| 5176 | 1169 { |
| 1170 double& ref = *valptr; | |
| 1171 | |
| 1172 switch (fmt.type) | |
| 1173 { | |
| 1174 case 'e': | |
| 1175 case 'f': | |
| 1176 case 'g': | |
| 1177 { | |
| 5259 | 1178 int c1 = EOF; |
| 5176 | 1179 |
| 1180 while (is && (c1 = is.get ()) != EOF && isspace (c1)) | |
| 1181 /* skip whitespace */; | |
| 1182 | |
| 1183 if (c1 != EOF) | |
| 1184 { | |
| 1185 if (c1 == 'N') | |
| 1186 { | |
| 1187 int c2 = is.get (); | |
| 1188 | |
| 1189 if (c2 != EOF) | |
| 1190 { | |
| 1191 if (c2 == 'A') | |
| 1192 { | |
| 1193 int c3 = is.get (); | |
| 1194 | |
| 1195 if (c3 != EOF) | |
| 1196 { | |
| 1197 is.putback (c3); | |
| 1198 | |
| 1199 if (isspace (c3) || ispunct (c3)) | |
| 1200 ref = octave_NA; | |
| 1201 else | |
| 1202 { | |
| 1203 is.putback (c2); | |
| 1204 is.putback (c1); | |
| 1205 | |
| 1206 is >> ref; | |
| 1207 } | |
| 1208 } | |
| 1209 else | |
| 1210 { | |
| 1211 is.clear (); | |
| 1212 | |
| 1213 ref = octave_NA; | |
| 1214 } | |
| 1215 } | |
| 1216 else if (c2 == 'a') | |
| 1217 { | |
| 1218 int c3 = is.get (); | |
| 1219 | |
| 1220 if (c3 != EOF) | |
| 1221 { | |
| 1222 if (c3 == 'N') | |
| 1223 { | |
| 1224 int c4 = is.get (); | |
| 1225 | |
| 1226 if (c4 != EOF) | |
| 1227 { | |
| 1228 is.putback (c4); | |
| 1229 | |
| 1230 if (isspace (c4) || ispunct (c4)) | |
| 1231 ref = octave_NaN; | |
| 1232 else | |
| 1233 { | |
| 1234 is.putback (c3); | |
| 1235 is.putback (c2); | |
| 1236 is.putback (c1); | |
| 1237 | |
| 1238 is >> ref; | |
| 1239 } | |
| 1240 } | |
| 1241 else | |
| 1242 { | |
| 1243 is.clear (); | |
| 1244 | |
| 1245 ref = octave_NaN; | |
| 1246 } | |
| 1247 } | |
| 1248 else | |
| 1249 { | |
| 1250 is.putback (c3); | |
| 1251 is.putback (c2); | |
| 1252 is.putback (c1); | |
| 1253 | |
| 1254 is >> ref; | |
| 1255 } | |
| 1256 } | |
| 1257 } | |
| 1258 else | |
| 1259 { | |
| 1260 is.putback (c2); | |
| 1261 is.putback (c1); | |
| 1262 | |
| 1263 is >> ref; | |
| 1264 } | |
| 1265 } | |
| 1266 } | |
| 1267 else if (c1 == 'I') | |
| 1268 { | |
| 1269 int c2 = is.get (); | |
| 1270 | |
| 1271 if (c2 != EOF) | |
| 1272 { | |
| 1273 if (c2 == 'n') | |
| 1274 { | |
| 1275 int c3 = is.get (); | |
| 1276 | |
| 1277 if (c3 != EOF) | |
| 6483 | 1278 { |
| 1279 if (c3 == 'f') | |
| 1280 { | |
| 1281 int c4 = is.get (); | |
| 1282 | |
| 1283 if (c4 != EOF) | |
| 1284 { | |
| 1285 is.putback (c4); | |
| 1286 | |
| 1287 if (isspace (c4) || ispunct (c4)) | |
| 1288 ref = octave_Inf; | |
| 1289 else | |
| 1290 { | |
| 1291 is.putback (c3); | |
| 1292 is.putback (c2); | |
| 1293 is.putback (c1); | |
| 1294 | |
| 1295 is >> ref; | |
| 1296 } | |
| 1297 } | |
| 1298 else | |
| 1299 { | |
| 1300 is.clear (); | |
| 1301 | |
| 5176 | 1302 ref = octave_Inf; |
| 6483 | 1303 } |
| 1304 } | |
| 1305 else | |
| 1306 { | |
| 1307 is.putback (c3); | |
| 1308 is.putback (c2); | |
| 1309 is.putback (c1); | |
| 1310 | |
| 1311 is >> ref; | |
| 1312 } | |
| 1313 } | |
| 1314 else | |
| 1315 { | |
| 1316 is.putback (c2); | |
| 1317 is.putback (c1); | |
| 1318 | |
| 1319 is >> ref; | |
| 1320 } | |
| 5176 | 1321 } |
| 1322 } | |
| 1323 } | |
| 1324 else | |
| 1325 { | |
| 1326 is.putback (c1); | |
| 1327 | |
| 1328 is >> ref; | |
| 1329 } | |
| 1330 } | |
| 1331 } | |
| 1332 break; | |
| 1333 | |
| 1334 default: | |
| 1335 panic_impossible (); | |
| 1336 break; | |
| 1337 } | |
| 1338 | |
| 1339 return is; | |
| 1340 } | |
| 1341 | |
| 2572 | 1342 template <class T> |
| 1343 void | |
| 3636 | 1344 do_scanf_conv (std::istream& is, const scanf_format_elt& fmt, |
| 5275 | 1345 T valptr, Matrix& mval, double *data, octave_idx_type& idx, |
| 1346 octave_idx_type& conversion_count, octave_idx_type nr, octave_idx_type max_size, | |
| 3636 | 1347 bool discard) |
| 2572 | 1348 { |
| 3640 | 1349 OCTAVE_SCAN (is, fmt, valptr); |
| 2572 | 1350 |
| 1351 if (is) | |
| 1352 { | |
| 1353 if (idx == max_size && ! discard) | |
| 1354 { | |
| 1355 max_size *= 2; | |
| 1356 | |
| 1357 if (nr > 0) | |
| 1358 mval.resize (nr, max_size / nr, 0.0); | |
| 1359 else | |
| 1360 mval.resize (max_size, 1, 0.0); | |
| 1361 | |
| 1362 data = mval.fortran_vec (); | |
| 1363 } | |
| 1364 | |
| 1365 if (! discard) | |
| 3268 | 1366 { |
| 3559 | 1367 conversion_count++; |
| 3268 | 1368 data[idx++] = *(valptr); |
| 1369 } | |
| 2572 | 1370 } |
| 1371 } | |
| 1372 | |
| 1373 template void | |
| 3878 | 1374 do_scanf_conv (std::istream&, const scanf_format_elt&, int*, |
| 5275 | 1375 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 2572 | 1376 |
| 3233 | 1377 template void |
| 3636 | 1378 do_scanf_conv (std::istream&, const scanf_format_elt&, long int*, |
| 5275 | 1379 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3233 | 1380 |
| 1381 template void | |
| 3636 | 1382 do_scanf_conv (std::istream&, const scanf_format_elt&, short int*, |
| 5275 | 1383 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3233 | 1384 |
| 3878 | 1385 template void |
| 1386 do_scanf_conv (std::istream&, const scanf_format_elt&, unsigned int*, | |
| 5275 | 1387 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3878 | 1388 |
| 1389 template void | |
| 1390 do_scanf_conv (std::istream&, const scanf_format_elt&, unsigned long int*, | |
| 5275 | 1391 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3878 | 1392 |
| 1393 template void | |
| 1394 do_scanf_conv (std::istream&, const scanf_format_elt&, unsigned short int*, | |
| 5275 | 1395 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3878 | 1396 |
| 2600 | 1397 #if 0 |
| 2572 | 1398 template void |
| 3636 | 1399 do_scanf_conv (std::istream&, const scanf_format_elt&, float*, |
| 5275 | 1400 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 2600 | 1401 #endif |
| 2572 | 1402 |
| 1403 template void | |
| 3636 | 1404 do_scanf_conv (std::istream&, const scanf_format_elt&, double*, |
| 5275 | 1405 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 2572 | 1406 |
| 3483 | 1407 #define DO_WHITESPACE_CONVERSION() \ |
| 1408 do \ | |
| 1409 { \ | |
| 1410 int c = EOF; \ | |
| 1411 \ | |
| 1412 while (is && (c = is.get ()) != EOF && isspace (c)) \ | |
| 1413 /* skip whitespace */; \ | |
| 1414 \ | |
| 1415 if (c != EOF) \ | |
| 1416 is.putback (c); \ | |
| 1417 } \ | |
| 1418 while (0) | |
| 1419 | |
| 1420 #define DO_LITERAL_CONVERSION() \ | |
| 1421 do \ | |
| 1422 { \ | |
| 1423 int c = EOF; \ | |
| 1424 \ | |
| 1425 int n = strlen (fmt); \ | |
| 1426 int i = 0; \ | |
| 1427 \ | |
| 1428 while (i < n && is && (c = is.get ()) != EOF) \ | |
| 1429 { \ | |
| 5326 | 1430 if (c == static_cast<unsigned char> (fmt[i])) \ |
| 3483 | 1431 { \ |
| 1432 i++; \ | |
| 1433 continue; \ | |
| 1434 } \ | |
| 1435 else \ | |
| 1436 { \ | |
| 1437 is.putback (c); \ | |
| 1438 break; \ | |
| 1439 } \ | |
| 1440 } \ | |
| 1441 \ | |
| 1442 if (i != n) \ | |
| 3538 | 1443 is.setstate (std::ios::failbit); \ |
| 3483 | 1444 } \ |
| 1445 while (0) | |
| 1446 | |
| 3640 | 1447 #define DO_PCT_CONVERSION() \ |
| 1448 do \ | |
| 1449 { \ | |
| 1450 int c = is.get (); \ | |
| 1451 \ | |
| 1452 if (c != EOF) \ | |
| 1453 { \ | |
| 1454 if (c != '%') \ | |
| 1455 { \ | |
| 1456 is.putback (c); \ | |
| 1457 is.setstate (std::ios::failbit); \ | |
| 1458 } \ | |
| 1459 } \ | |
| 1460 else \ | |
| 1461 is.setstate (std::ios::failbit); \ | |
| 1462 } \ | |
| 1463 while (0) | |
| 1464 | |
| 3483 | 1465 #define BEGIN_C_CONVERSION() \ |
| 3538 | 1466 is.unsetf (std::ios::skipws); \ |
| 3483 | 1467 \ |
| 1468 int width = elt->width ? elt->width : 1; \ | |
| 1469 \ | |
| 4051 | 1470 char *tbuf = new char[width + 1]; \ |
| 3483 | 1471 \ |
| 1472 int c = EOF; \ | |
| 1473 int n = 0; \ | |
| 1474 \ | |
| 1475 while (is && n < width && (c = is.get ()) != EOF) \ | |
| 5760 | 1476 tbuf[n++] = static_cast<char> (c); \ |
| 4051 | 1477 \ |
| 1478 tbuf[n] = '\0'; \ | |
| 3483 | 1479 \ |
| 5266 | 1480 if (n > 0 && c == EOF) \ |
| 1481 is.clear (); \ | |
| 1482 \ | |
| 4051 | 1483 std::string tmp = tbuf; \ |
| 1484 \ | |
| 1485 delete [] tbuf | |
| 3483 | 1486 |
| 1487 // For a `%s' format, skip initial whitespace and then read until the | |
| 5338 | 1488 // next whitespace character or until WIDTH characters have been read. |
| 3483 | 1489 #define BEGIN_S_CONVERSION() \ |
| 1490 int width = elt->width; \ | |
| 1491 \ | |
| 4051 | 1492 std::string tmp; \ |
| 3483 | 1493 \ |
| 1494 do \ | |
| 1495 { \ | |
| 1496 if (width) \ | |
| 5338 | 1497 { \ |
| 1498 char *tbuf = new char [width+1]; \ | |
| 1499 \ | |
| 1500 int c = EOF; \ | |
| 1501 \ | |
| 1502 int n = 0; \ | |
| 1503 \ | |
| 1504 while (is && (c = is.get ()) != EOF) \ | |
| 1505 { \ | |
| 1506 if (! isspace (c)) \ | |
| 1507 { \ | |
| 1508 tbuf[n++] = static_cast<char> (c); \ | |
| 1509 break; \ | |
| 1510 } \ | |
| 1511 } \ | |
| 4051 | 1512 \ |
| 5338 | 1513 while (is && n < width && (c = is.get ()) != EOF) \ |
| 1514 { \ | |
| 1515 if (isspace (c)) \ | |
| 1516 { \ | |
| 1517 is.putback (c); \ | |
| 1518 break; \ | |
| 1519 } \ | |
| 1520 else \ | |
| 1521 tbuf[n++] = static_cast<char> (c); \ | |
| 1522 } \ | |
| 3483 | 1523 \ |
| 5338 | 1524 tbuf[n] = '\0'; \ |
| 1525 \ | |
| 1526 if (n > 0 && c == EOF) \ | |
| 1527 is.clear (); \ | |
| 1528 \ | |
| 4051 | 1529 tmp = tbuf; \ |
| 5338 | 1530 \ |
| 4051 | 1531 delete [] tbuf; \ |
| 5338 | 1532 } \ |
| 3483 | 1533 else \ |
| 5338 | 1534 { \ |
| 1535 is >> std::ws >> tmp; \ | |
| 1536 } \ | |
| 3483 | 1537 } \ |
| 1538 while (0) | |
| 1539 | |
| 1540 // This format must match a nonempty sequence of characters. | |
| 1541 #define BEGIN_CHAR_CLASS_CONVERSION() \ | |
| 1542 int width = elt->width; \ | |
| 1543 \ | |
| 4051 | 1544 std::string tmp; \ |
| 3483 | 1545 \ |
| 1546 do \ | |
| 1547 { \ | |
| 7426 | 1548 if (! width) \ |
| 7427 | 1549 width = INT_MAX; \ |
| 1550 \ | |
| 7426 | 1551 std::ostringstream buf; \ |
| 1552 \ | |
| 1553 std::string char_class = elt->char_class; \ | |
| 4051 | 1554 \ |
| 7426 | 1555 int c = EOF; \ |
| 3483 | 1556 \ |
| 7426 | 1557 if (elt->type == '[') \ |
| 1558 { \ | |
| 1559 int chars_read = 0; \ | |
| 1560 while (is && chars_read++ < width && (c = is.get ()) != EOF \ | |
| 1561 && char_class.find (c) != NPOS) \ | |
| 1562 buf << static_cast<char> (c); \ | |
| 3483 | 1563 } \ |
| 1564 else \ | |
| 1565 { \ | |
| 7426 | 1566 int chars_read = 0; \ |
| 1567 while (is && chars_read++ < width && (c = is.get ()) != EOF \ | |
| 1568 && char_class.find (c) == NPOS) \ | |
| 1569 buf << static_cast<char> (c); \ | |
| 1570 } \ | |
| 3483 | 1571 \ |
| 7426 | 1572 if (width == INT_MAX && c != EOF) \ |
| 1573 is.putback (c); \ | |
| 3483 | 1574 \ |
| 7426 | 1575 tmp = buf.str (); \ |
| 3483 | 1576 \ |
| 7426 | 1577 if (tmp.empty ()) \ |
| 1578 is.setstate (std::ios::failbit); \ | |
| 3483 | 1579 } \ |
| 1580 while (0) | |
| 1581 | |
| 3410 | 1582 #define FINISH_CHARACTER_CONVERSION() \ |
| 1583 do \ | |
| 1584 { \ | |
| 4051 | 1585 width = tmp.length (); \ |
| 3410 | 1586 \ |
| 1587 if (is) \ | |
| 1588 { \ | |
| 1589 int i = 0; \ | |
| 1590 \ | |
| 1591 if (! discard) \ | |
| 1592 { \ | |
| 1593 conversion_count++; \ | |
| 1594 \ | |
| 1595 while (i < width && tmp[i] != '\0') \ | |
| 1596 { \ | |
| 1597 if (data_index == max_size) \ | |
| 1598 { \ | |
| 1599 max_size *= 2; \ | |
| 1600 \ | |
| 4420 | 1601 if (all_char_conv) \ |
| 3410 | 1602 { \ |
| 4420 | 1603 if (one_elt_size_spec) \ |
| 3410 | 1604 mval.resize (1, max_size, 0.0); \ |
| 4420 | 1605 else if (nr > 0) \ |
| 1606 mval.resize (nr, max_size / nr, 0.0); \ | |
| 3410 | 1607 else \ |
| 4420 | 1608 panic_impossible (); \ |
| 3410 | 1609 } \ |
| 4420 | 1610 else if (nr > 0) \ |
| 6970 | 1611 mval.resize (nr, max_size / nr, 0.0); \ |
| 4420 | 1612 else \ |
| 1613 mval.resize (max_size, 1, 0.0); \ | |
| 3410 | 1614 \ |
| 1615 data = mval.fortran_vec (); \ | |
| 1616 } \ | |
| 1617 \ | |
| 1618 data[data_index++] = tmp[i++]; \ | |
| 1619 } \ | |
| 1620 } \ | |
| 1621 } \ | |
| 1622 } \ | |
| 1623 while (0) | |
| 2117 | 1624 |
| 1625 octave_value | |
| 1626 octave_base_stream::do_scanf (scanf_format_list& fmt_list, | |
| 5275 | 1627 octave_idx_type nr, octave_idx_type nc, bool one_elt_size_spec, |
| 1628 octave_idx_type& conversion_count, const std::string& who) | |
| 2117 | 1629 { |
| 3268 | 1630 conversion_count = 0; |
| 1631 | |
| 3640 | 1632 int nconv = fmt_list.num_conversions (); |
| 1633 | |
| 5275 | 1634 octave_idx_type data_index = 0; |
| 2121 | 1635 |
| 2117 | 1636 octave_value retval = Matrix (); |
| 1637 | |
| 3268 | 1638 if (nr == 0 || nc == 0) |
| 1639 { | |
| 1640 if (one_elt_size_spec) | |
| 1641 nc = 0; | |
| 1642 | |
| 1643 return Matrix (nr, nc, 0.0); | |
| 1644 } | |
| 1645 | |
| 3523 | 1646 std::istream *isp = input_stream (); |
| 2117 | 1647 |
| 1648 bool all_char_conv = fmt_list.all_character_conversions (); | |
| 1649 | |
| 1650 Matrix mval; | |
| 1651 double *data = 0; | |
| 5275 | 1652 octave_idx_type max_size = 0; |
| 1653 octave_idx_type max_conv = 0; | |
| 1654 | |
| 1655 octave_idx_type final_nr = 0; | |
| 1656 octave_idx_type final_nc = 0; | |
| 2117 | 1657 |
| 3268 | 1658 if (all_char_conv) |
| 1659 { | |
| 4420 | 1660 // Any of these could be resized later (if we have %s |
| 1661 // conversions, we may read more than one element for each | |
| 1662 // conversion). | |
| 1663 | |
| 3268 | 1664 if (one_elt_size_spec) |
| 1665 { | |
| 3410 | 1666 max_size = 512; |
| 1667 mval.resize (1, max_size, 0.0); | |
| 1668 | |
| 3268 | 1669 if (nr > 0) |
| 1670 max_conv = nr; | |
| 1671 } | |
| 4420 | 1672 else if (nr > 0) |
| 3268 | 1673 { |
| 4420 | 1674 if (nc > 0) |
| 1675 { | |
| 1676 mval.resize (nr, nc, 0.0); | |
| 1677 max_size = max_conv = nr * nc; | |
| 1678 } | |
| 1679 else | |
| 1680 { | |
| 1681 mval.resize (nr, 32, 0.0); | |
| 1682 max_size = nr * 32; | |
| 1683 } | |
| 3268 | 1684 } |
| 4420 | 1685 else |
| 1686 panic_impossible (); | |
| 3268 | 1687 } |
| 1688 else if (nr > 0) | |
| 2117 | 1689 { |
| 1690 if (nc > 0) | |
| 1691 { | |
| 4420 | 1692 // Will not resize later. |
| 2117 | 1693 mval.resize (nr, nc, 0.0); |
| 1694 max_size = nr * nc; | |
| 3268 | 1695 max_conv = max_size; |
| 2117 | 1696 } |
| 1697 else | |
| 1698 { | |
| 4420 | 1699 // Maybe resize later. |
| 2117 | 1700 mval.resize (nr, 32, 0.0); |
| 2121 | 1701 max_size = nr * 32; |
| 2117 | 1702 } |
| 1703 } | |
| 1704 else | |
| 1705 { | |
| 4420 | 1706 // Maybe resize later. |
| 2117 | 1707 mval.resize (32, 1, 0.0); |
| 1708 max_size = 32; | |
| 1709 } | |
| 1710 | |
| 4420 | 1711 data = mval.fortran_vec (); |
| 1712 | |
| 2117 | 1713 if (isp) |
| 1714 { | |
| 3523 | 1715 std::istream& is = *isp; |
| 2117 | 1716 |
| 1717 const scanf_format_elt *elt = fmt_list.first (); | |
| 1718 | |
| 3538 | 1719 std::ios::fmtflags flags = is.flags (); |
| 2213 | 1720 |
| 2117 | 1721 for (;;) |
| 1722 { | |
| 4153 | 1723 OCTAVE_QUIT; |
| 1724 | |
| 2117 | 1725 if (elt) |
| 1726 { | |
| 3268 | 1727 if (max_conv > 0 && conversion_count == max_conv) |
| 1728 { | |
| 1729 if (all_char_conv && one_elt_size_spec) | |
| 1730 { | |
| 1731 final_nr = 1; | |
| 1732 final_nc = data_index; | |
| 1733 } | |
| 1734 else | |
| 1735 { | |
| 1736 final_nr = nr; | |
| 1737 final_nc = (data_index - 1) / nr + 1; | |
| 1738 } | |
| 1739 | |
| 1740 break; | |
| 1741 } | |
| 1742 else if (data_index == max_size) | |
| 2117 | 1743 { |
| 3410 | 1744 max_size *= 2; |
| 1745 | |
| 4420 | 1746 if (all_char_conv) |
| 2687 | 1747 { |
| 4420 | 1748 if (one_elt_size_spec) |
| 3410 | 1749 mval.resize (1, max_size, 0.0); |
| 4420 | 1750 else if (nr > 0) |
| 1751 mval.resize (nr, max_size / nr, 0.0); | |
| 3410 | 1752 else |
| 4420 | 1753 panic_impossible (); |
| 2687 | 1754 } |
| 4420 | 1755 else if (nr > 0) |
| 6970 | 1756 mval.resize (nr, max_size / nr, 0.0); |
| 4420 | 1757 else |
| 1758 mval.resize (max_size, 1, 0.0); | |
| 3410 | 1759 |
| 1760 data = mval.fortran_vec (); | |
| 2117 | 1761 } |
| 1762 | |
| 1763 const char *fmt = elt->text; | |
| 1764 | |
| 1765 bool discard = elt->discard; | |
| 1766 | |
| 1767 switch (elt->type) | |
| 1768 { | |
| 3483 | 1769 case scanf_format_elt::whitespace_conversion: |
| 1770 DO_WHITESPACE_CONVERSION (); | |
| 1771 break; | |
| 1772 | |
| 1773 case scanf_format_elt::literal_conversion: | |
| 1774 DO_LITERAL_CONVERSION (); | |
| 1775 break; | |
| 1776 | |
| 2117 | 1777 case '%': |
| 3640 | 1778 DO_PCT_CONVERSION (); |
| 3483 | 1779 break; |
| 2117 | 1780 |
| 3878 | 1781 case 'd': case 'i': |
| 2117 | 1782 { |
| 3233 | 1783 switch (elt->modifier) |
| 1784 { | |
| 1785 case 'h': | |
| 1786 { | |
| 1787 short int tmp; | |
| 3779 | 1788 do_scanf_conv (is, *elt, &tmp, mval, data, |
| 3268 | 1789 data_index, conversion_count, |
| 3233 | 1790 nr, max_size, discard); |
| 1791 } | |
| 3483 | 1792 break; |
| 3233 | 1793 |
| 1794 case 'l': | |
| 1795 { | |
| 1796 long int tmp; | |
| 3779 | 1797 do_scanf_conv (is, *elt, &tmp, mval, data, |
| 3268 | 1798 data_index, conversion_count, |
| 3233 | 1799 nr, max_size, discard); |
| 1800 } | |
| 3483 | 1801 break; |
| 3233 | 1802 |
| 1803 default: | |
| 1804 { | |
| 1805 int tmp; | |
| 3779 | 1806 do_scanf_conv (is, *elt, &tmp, mval, data, |
| 3268 | 1807 data_index, conversion_count, |
| 3233 | 1808 nr, max_size, discard); |
| 1809 } | |
| 3483 | 1810 break; |
| 3233 | 1811 } |
| 2117 | 1812 } |
| 3483 | 1813 break; |
| 2117 | 1814 |
| 3878 | 1815 case 'o': case 'u': case 'x': |
| 1816 { | |
| 1817 switch (elt->modifier) | |
| 1818 { | |
| 1819 case 'h': | |
| 1820 { | |
| 1821 unsigned short int tmp; | |
| 1822 do_scanf_conv (is, *elt, &tmp, mval, data, | |
| 1823 data_index, conversion_count, | |
| 1824 nr, max_size, discard); | |
| 1825 } | |
| 1826 break; | |
| 1827 | |
| 1828 case 'l': | |
| 1829 { | |
| 1830 unsigned long int tmp; | |
| 1831 do_scanf_conv (is, *elt, &tmp, mval, data, | |
| 1832 data_index, conversion_count, | |
| 1833 nr, max_size, discard); | |
| 1834 } | |
| 1835 break; | |
| 1836 | |
| 1837 default: | |
| 1838 { | |
| 1839 unsigned int tmp; | |
| 1840 do_scanf_conv (is, *elt, &tmp, mval, data, | |
| 1841 data_index, conversion_count, | |
| 1842 nr, max_size, discard); | |
| 1843 } | |
| 1844 break; | |
| 1845 } | |
| 1846 } | |
| 1847 break; | |
| 1848 | |
| 2117 | 1849 case 'e': case 'f': case 'g': |
| 1850 { | |
| 2600 | 1851 double tmp; |
| 1852 | |
| 3779 | 1853 do_scanf_conv (is, *elt, &tmp, mval, data, |
| 3268 | 1854 data_index, conversion_count, |
| 2600 | 1855 nr, max_size, discard); |
| 2117 | 1856 } |
| 3483 | 1857 break; |
| 2117 | 1858 |
| 2213 | 1859 case 'c': |
| 3410 | 1860 { |
| 3483 | 1861 BEGIN_C_CONVERSION (); |
| 3410 | 1862 |
| 1863 FINISH_CHARACTER_CONVERSION (); | |
| 3483 | 1864 |
| 1865 is.setf (flags); | |
| 3410 | 1866 } |
| 1867 break; | |
| 2213 | 1868 |
| 2117 | 1869 case 's': |
| 1870 { | |
| 3483 | 1871 BEGIN_S_CONVERSION (); |
| 3268 | 1872 |
| 3410 | 1873 FINISH_CHARACTER_CONVERSION (); |
| 2117 | 1874 } |
| 3483 | 1875 break; |
| 1876 | |
| 1877 case '[': case '^': | |
| 1878 { | |
| 1879 BEGIN_CHAR_CLASS_CONVERSION (); | |
| 1880 | |
| 1881 FINISH_CHARACTER_CONVERSION (); | |
| 1882 } | |
| 1883 break; | |
| 1884 | |
| 1885 case 'p': | |
| 4468 | 1886 error ("%s: unsupported format specifier", who.c_str ()); |
| 2117 | 1887 break; |
| 1888 | |
| 1889 default: | |
| 4468 | 1890 error ("%s: internal format error", who.c_str ()); |
| 2117 | 1891 break; |
| 1892 } | |
| 1893 | |
| 1894 if (! ok ()) | |
| 1895 { | |
| 1896 break; | |
| 1897 } | |
| 1898 else if (! is) | |
| 1899 { | |
| 3268 | 1900 if (all_char_conv) |
| 2117 | 1901 { |
| 3268 | 1902 if (one_elt_size_spec) |
| 1903 { | |
| 1904 final_nr = 1; | |
| 1905 final_nc = data_index; | |
| 1906 } | |
| 1907 else if (data_index > nr) | |
| 2117 | 1908 { |
| 2759 | 1909 final_nr = nr; |
| 3268 | 1910 final_nc = (data_index - 1) / nr + 1; |
| 2117 | 1911 } |
| 1912 else | |
| 1913 { | |
| 3268 | 1914 final_nr = data_index; |
| 1915 final_nc = 1; | |
| 1916 } | |
| 1917 } | |
| 1918 else if (nr > 0) | |
| 1919 { | |
| 1920 if (data_index > nr) | |
| 1921 { | |
| 1922 final_nr = nr; | |
| 1923 final_nc = (data_index - 1) / nr + 1; | |
| 1924 } | |
| 1925 else | |
| 1926 { | |
| 1927 final_nr = data_index; | |
| 2117 | 1928 final_nc = 1; |
| 1929 } | |
| 1930 } | |
| 1931 else | |
| 1932 { | |
| 3268 | 1933 final_nr = data_index; |
| 2759 | 1934 final_nc = 1; |
| 1935 } | |
| 1936 | |
| 3337 | 1937 // If it looks like we have a matching failure, then |
| 1938 // reset the failbit in the stream state. | |
| 1939 | |
| 3538 | 1940 if (is.rdstate () & std::ios::failbit) |
| 1941 is.clear (is.rdstate () & (~std::ios::failbit)); | |
| 3337 | 1942 |
| 5775 | 1943 // FIXME -- is this the right thing to do? |
| 3342 | 1944 |
| 1945 if (interactive && name () == "stdin") | |
| 2759 | 1946 { |
| 1947 is.clear (); | |
| 1948 | |
| 1949 // Skip to end of line. | |
| 1950 | |
| 1951 bool err; | |
| 4468 | 1952 do_gets (-1, err, false, who); |
| 2117 | 1953 } |
| 1954 | |
| 1955 break; | |
| 1956 } | |
| 1957 } | |
| 1958 else | |
| 1959 { | |
| 4468 | 1960 error ("%s: internal format error", who.c_str ()); |
| 2117 | 1961 break; |
| 1962 } | |
| 1963 | |
| 3640 | 1964 elt = fmt_list.next (nconv > 0); |
| 2117 | 1965 } |
| 1966 } | |
| 1967 | |
| 1968 if (ok ()) | |
| 1969 { | |
| 2121 | 1970 mval.resize (final_nr, final_nc, 0.0); |
| 2117 | 1971 |
| 3268 | 1972 retval = mval; |
| 1973 | |
| 2117 | 1974 if (all_char_conv) |
| 5279 | 1975 retval = retval.convert_to_str (false, true); |
| 2117 | 1976 } |
| 1977 | |
| 1978 return retval; | |
| 1979 } | |
| 1980 | |
| 1981 octave_value | |
| 3810 | 1982 octave_base_stream::scanf (const std::string& fmt, const Array<double>& size, |
| 5275 | 1983 octave_idx_type& conversion_count, const std::string& who) |
| 2117 | 1984 { |
| 1985 octave_value retval = Matrix (); | |
| 1986 | |
| 3559 | 1987 conversion_count = 0; |
| 2117 | 1988 |
| 3523 | 1989 std::istream *isp = input_stream (); |
| 2117 | 1990 |
| 1991 if (isp) | |
| 1992 { | |
| 1993 scanf_format_list fmt_list (fmt); | |
| 1994 | |
| 3640 | 1995 if (fmt_list.num_conversions () == -1) |
| 4468 | 1996 ::error ("%s: invalid format specified", who.c_str ()); |
| 3640 | 1997 else |
| 2117 | 1998 { |
| 5275 | 1999 octave_idx_type nr = -1; |
| 2000 octave_idx_type nc = -1; | |
| 3640 | 2001 |
| 2002 bool one_elt_size_spec; | |
| 2003 | |
| 4468 | 2004 get_size (size, nr, nc, one_elt_size_spec, who); |
| 3640 | 2005 |
| 2006 if (! error_state) | |
| 2007 retval = do_scanf (fmt_list, nr, nc, one_elt_size_spec, | |
| 4468 | 2008 conversion_count, who); |
| 2215 | 2009 } |
| 2010 } | |
| 2011 else | |
| 4468 | 2012 invalid_operation (who, "reading"); |
| 2572 | 2013 |
| 2014 return retval; | |
| 2015 } | |
| 2016 | |
| 2712 | 2017 bool |
| 2018 octave_base_stream::do_oscanf (const scanf_format_elt *elt, | |
| 4468 | 2019 octave_value& retval, const std::string& who) |
| 2572 | 2020 { |
| 2712 | 2021 bool quit = false; |
| 2215 | 2022 |
| 3523 | 2023 std::istream *isp = input_stream (); |
| 2215 | 2024 |
| 2025 if (isp) | |
| 2026 { | |
| 3523 | 2027 std::istream& is = *isp; |
| 2215 | 2028 |
| 3538 | 2029 std::ios::fmtflags flags = is.flags (); |
| 2215 | 2030 |
| 2031 if (elt) | |
| 2032 { | |
| 2033 const char *fmt = elt->text; | |
| 2034 | |
| 2035 bool discard = elt->discard; | |
| 2036 | |
| 2037 switch (elt->type) | |
| 2038 { | |
| 3483 | 2039 case scanf_format_elt::whitespace_conversion: |
| 2040 DO_WHITESPACE_CONVERSION (); | |
| 2041 break; | |
| 2042 | |
| 2043 case scanf_format_elt::literal_conversion: | |
| 2044 DO_LITERAL_CONVERSION (); | |
| 2045 break; | |
| 2046 | |
| 2215 | 2047 case '%': |
| 2048 { | |
| 3640 | 2049 DO_PCT_CONVERSION (); |
| 2050 | |
| 2051 if (! is) | |
| 2712 | 2052 quit = true; |
| 3640 | 2053 |
| 2215 | 2054 } |
| 2055 break; | |
| 2056 | |
| 3878 | 2057 case 'd': case 'i': |
| 2215 | 2058 { |
| 2059 int tmp; | |
| 2060 | |
| 3640 | 2061 if (OCTAVE_SCAN (is, *elt, &tmp)) |
| 2712 | 2062 { |
| 2063 if (! discard) | |
| 4233 | 2064 retval = tmp; |
| 2712 | 2065 } |
| 2066 else | |
| 2067 quit = true; | |
| 2215 | 2068 } |
| 2069 break; | |
| 2070 | |
| 3878 | 2071 case 'o': case 'u': case 'x': |
| 2072 { | |
| 2073 long int tmp; | |
| 2074 | |
| 2075 if (OCTAVE_SCAN (is, *elt, &tmp)) | |
| 2076 { | |
| 2077 if (! discard) | |
| 4254 | 2078 retval = tmp; |
| 3878 | 2079 } |
| 2080 else | |
| 2081 quit = true; | |
| 2082 } | |
| 2083 break; | |
| 2084 | |
| 2215 | 2085 case 'e': case 'f': case 'g': |
| 2086 { | |
| 2600 | 2087 double tmp; |
| 2088 | |
| 3640 | 2089 if (OCTAVE_SCAN (is, *elt, &tmp)) |
| 2712 | 2090 { |
| 2091 if (! discard) | |
| 2092 retval = tmp; | |
| 2093 } | |
| 2094 else | |
| 2095 quit = true; | |
| 2215 | 2096 } |
| 2097 break; | |
| 2098 | |
| 2099 case 'c': | |
| 2100 { | |
| 3483 | 2101 BEGIN_C_CONVERSION (); |
| 2102 | |
| 2103 if (! discard) | |
| 2104 retval = tmp; | |
| 2105 | |
| 2106 if (! is) | |
| 2712 | 2107 quit = true; |
| 2215 | 2108 |
| 2109 is.setf (flags); | |
| 2110 } | |
| 2111 break; | |
| 2112 | |
| 2113 case 's': | |
| 2114 { | |
| 3483 | 2115 BEGIN_S_CONVERSION (); |
| 2116 | |
| 2117 if (! discard) | |
| 2118 retval = tmp; | |
| 2572 | 2119 |
| 3268 | 2120 if (! is) |
| 2121 quit = true; | |
| 2215 | 2122 } |
| 2123 break; | |
| 2124 | |
| 3483 | 2125 case '[': case '^': |
| 2126 { | |
| 2127 BEGIN_CHAR_CLASS_CONVERSION (); | |
| 2128 | |
| 2129 if (! discard) | |
| 2130 retval = tmp; | |
| 2131 | |
| 2132 if (! is) | |
| 2133 quit = true; | |
| 2134 } | |
| 2135 break; | |
| 2136 | |
| 2137 case 'p': | |
| 4468 | 2138 error ("%s: unsupported format specifier", who.c_str ()); |
| 2215 | 2139 break; |
| 2140 | |
| 2141 default: | |
| 4468 | 2142 error ("%s: internal format error", who.c_str ()); |
| 2215 | 2143 break; |
| 2144 } | |
| 2145 } | |
| 2146 | |
| 2147 if (ok () && is.fail ()) | |
| 2148 { | |
| 4468 | 2149 error ("%s: read error", who.c_str ()); |
| 3483 | 2150 |
| 5775 | 2151 // FIXME -- is this the right thing to do? |
| 3342 | 2152 |
| 2153 if (interactive && name () == "stdin") | |
| 2215 | 2154 { |
| 2155 // Skip to end of line. | |
| 2156 | |
| 2157 bool err; | |
| 4468 | 2158 do_gets (-1, err, false, who); |
| 2215 | 2159 } |
| 2160 } | |
| 2161 } | |
| 2162 | |
| 2712 | 2163 return quit; |
| 2215 | 2164 } |
| 2165 | |
| 2166 octave_value_list | |
| 4468 | 2167 octave_base_stream::oscanf (const std::string& fmt, const std::string& who) |
| 2215 | 2168 { |
| 2169 octave_value_list retval; | |
| 2170 | |
| 3523 | 2171 std::istream *isp = input_stream (); |
| 2215 | 2172 |
| 2173 if (isp) | |
| 2174 { | |
| 3523 | 2175 std::istream& is = *isp; |
| 2215 | 2176 |
| 2177 scanf_format_list fmt_list (fmt); | |
| 2178 | |
| 2179 int nconv = fmt_list.num_conversions (); | |
| 2180 | |
| 3640 | 2181 if (nconv == -1) |
| 4468 | 2182 ::error ("%s: invalid format specified", who.c_str ()); |
| 3640 | 2183 else |
| 2215 | 2184 { |
| 3640 | 2185 is.clear (); |
| 2186 | |
| 2187 int len = fmt_list.length (); | |
| 2188 | |
| 2189 retval.resize (nconv+1, Matrix ()); | |
| 2190 | |
| 2191 const scanf_format_elt *elt = fmt_list.first (); | |
| 2192 | |
| 2193 int num_values = 0; | |
| 2194 | |
| 2195 bool quit = false; | |
| 2196 | |
| 5275 | 2197 for (octave_idx_type i = 0; i < len; i++) |
| 3640 | 2198 { |
| 2199 octave_value tmp; | |
| 2200 | |
| 4468 | 2201 quit = do_oscanf (elt, tmp, who); |
| 3640 | 2202 |
| 2203 if (quit) | |
| 2204 break; | |
| 2205 else | |
| 2206 { | |
| 2207 if (tmp.is_defined ()) | |
| 2208 retval (num_values++) = tmp; | |
| 2209 | |
| 2210 if (! ok ()) | |
| 2211 break; | |
| 2212 | |
| 2213 elt = fmt_list.next (nconv > 0); | |
| 2214 } | |
| 2215 } | |
| 2216 | |
| 4233 | 2217 retval(nconv) = num_values; |
| 3640 | 2218 |
| 2219 if (! quit) | |
| 2220 { | |
| 2221 // Pick up any trailing stuff. | |
| 2222 if (ok () && len > nconv) | |
| 2223 { | |
| 2224 octave_value tmp; | |
| 3704 | 2225 |
| 2226 elt = fmt_list.next (); | |
| 2227 | |
| 4468 | 2228 do_oscanf (elt, tmp, who); |
| 3640 | 2229 } |
| 2230 } | |
| 2117 | 2231 } |
| 2232 } | |
| 2233 else | |
| 4468 | 2234 invalid_operation (who, "reading"); |
| 2117 | 2235 |
| 2236 return retval; | |
| 2237 } | |
| 2238 | |
| 2239 // Functions that are defined for all output streams (output streams | |
| 2240 // are those that define os). | |
| 2241 | |
| 2242 int | |
| 2243 octave_base_stream::flush (void) | |
| 2244 { | |
| 2245 int retval = -1; | |
| 2246 | |
| 3523 | 2247 std::ostream *os = output_stream (); |
| 2117 | 2248 |
| 2249 if (os) | |
| 2250 { | |
| 2251 os->flush (); | |
| 2252 | |
| 2253 if (os->good ()) | |
| 2254 retval = 0; | |
| 2255 } | |
| 2256 else | |
| 2257 invalid_operation ("fflush", "writing"); | |
| 2258 | |
| 2259 return retval; | |
| 2260 } | |
| 2261 | |
| 2262 class | |
| 2263 printf_value_cache | |
| 2264 { | |
| 2265 public: | |
| 2266 | |
| 3653 | 2267 enum state { ok, conversion_error }; |
| 2117 | 2268 |
| 7352 | 2269 printf_value_cache (const octave_value_list& args, const std::string& who) |
| 2117 | 2270 : values (args), val_idx (0), elt_idx (0), |
| 2271 n_vals (values.length ()), n_elts (0), data (0), | |
| 7352 | 2272 curr_state (ok) |
| 2273 { | |
| 2274 for (octave_idx_type i = 0; i < values.length (); i++) | |
| 2275 { | |
| 2276 octave_value val = values(i); | |
| 2277 | |
| 2278 if (val.is_map () || val.is_cell () || val.is_object () | |
| 2279 || val.is_list ()) | |
| 2280 { | |
| 2281 gripe_wrong_type_arg (who, val); | |
| 2282 break; | |
| 2283 } | |
| 2284 } | |
| 2285 } | |
| 2117 | 2286 |
| 2287 ~printf_value_cache (void) { } | |
| 2288 | |
| 2289 // Get the current value as a double and advance the internal pointer. | |
| 2290 double double_value (void); | |
| 2291 | |
| 2292 // Get the current value as an int and advance the internal pointer. | |
| 2293 int int_value (void); | |
| 2294 | |
| 2295 // Get the current value as a string and advance the internal pointer. | |
| 3523 | 2296 std::string string_value (void); |
| 2117 | 2297 |
| 3145 | 2298 operator bool () const { return (curr_state == ok); } |
| 2117 | 2299 |
| 3653 | 2300 bool exhausted (void) { return (val_idx >= n_vals); } |
| 2117 | 2301 |
| 2302 private: | |
| 2303 | |
| 2304 const octave_value_list values; | |
| 2305 int val_idx; | |
| 2306 int elt_idx; | |
| 2307 int n_vals; | |
| 2308 int n_elts; | |
| 2309 const double *data; | |
| 4874 | 2310 NDArray curr_val; |
| 2117 | 2311 state curr_state; |
| 2312 | |
| 2313 // Must create value cache with values! | |
| 2314 | |
| 2315 printf_value_cache (void); | |
| 2316 | |
| 2317 // No copying! | |
| 2318 | |
| 2319 printf_value_cache (const printf_value_cache&); | |
| 2320 | |
| 2321 printf_value_cache& operator = (const printf_value_cache&); | |
| 2322 }; | |
| 2323 | |
| 2324 double | |
| 2325 printf_value_cache::double_value (void) | |
| 2326 { | |
| 2327 double retval = 0.0; | |
| 2328 | |
| 3711 | 2329 if (exhausted ()) |
| 2330 curr_state = conversion_error; | |
| 2331 | |
| 2332 while (! exhausted ()) | |
| 2117 | 2333 { |
| 2334 if (! data) | |
| 2335 { | |
| 2336 octave_value tmp_val = values (val_idx); | |
| 2337 | |
| 5476 | 2338 // Force string conversion here for compatibility. |
| 2339 | |
| 2340 curr_val = tmp_val.array_value (true); | |
| 2117 | 2341 |
| 2342 if (! error_state) | |
| 2343 { | |
| 2344 elt_idx = 0; | |
| 2345 n_elts = curr_val.length (); | |
| 2346 data = curr_val.data (); | |
| 2347 } | |
| 2348 else | |
| 2349 { | |
| 2350 curr_state = conversion_error; | |
| 2351 break; | |
| 2352 } | |
| 2353 } | |
| 2354 | |
| 2355 if (elt_idx < n_elts) | |
| 2356 { | |
| 3653 | 2357 retval = data[elt_idx++]; |
| 2358 | |
| 2359 if (elt_idx >= n_elts) | |
| 2360 { | |
| 2361 elt_idx = 0; | |
| 2362 val_idx++; | |
| 2363 data = 0; | |
| 2364 } | |
| 2365 | |
| 2117 | 2366 break; |
| 2367 } | |
| 2368 else | |
| 2369 { | |
| 2370 val_idx++; | |
| 2371 data = 0; | |
| 3969 | 2372 |
| 2373 if (n_elts == 0 && exhausted ()) | |
| 2374 curr_state = conversion_error; | |
| 2375 | |
| 2117 | 2376 continue; |
| 2377 } | |
| 2378 } | |
| 2379 | |
| 2380 return retval; | |
| 2381 } | |
| 2382 | |
| 2383 int | |
| 2384 printf_value_cache::int_value (void) | |
| 2385 { | |
| 2386 int retval = 0; | |
| 2387 | |
| 2388 double dval = double_value (); | |
| 2389 | |
| 2390 if (! error_state) | |
| 2391 { | |
| 2392 if (D_NINT (dval) == dval) | |
| 2393 retval = NINT (dval); | |
| 2394 else | |
| 2395 curr_state = conversion_error; | |
| 2396 } | |
| 2397 | |
| 2398 return retval; | |
| 2399 } | |
| 2400 | |
| 3536 | 2401 std::string |
| 2117 | 2402 printf_value_cache::string_value (void) |
| 2403 { | |
| 3523 | 2404 std::string retval; |
| 2117 | 2405 |
| 4425 | 2406 if (exhausted ()) |
| 2407 curr_state = conversion_error; | |
| 4257 | 2408 else |
| 2117 | 2409 { |
| 4425 | 2410 octave_value tval = values (val_idx++); |
| 2411 | |
| 2412 if (tval.rows () == 1) | |
| 2413 retval = tval.string_value (); | |
| 2414 else | |
| 2415 { | |
| 2416 // In the name of Matlab compatibility. | |
| 2417 | |
| 2418 charMatrix chm = tval.char_matrix_value (); | |
| 2419 | |
| 5275 | 2420 octave_idx_type nr = chm.rows (); |
| 2421 octave_idx_type nc = chm.columns (); | |
| 4425 | 2422 |
| 2423 int k = 0; | |
| 2424 | |
| 2425 retval.resize (nr * nc, '\0'); | |
| 2426 | |
| 5275 | 2427 for (octave_idx_type j = 0; j < nc; j++) |
| 2428 for (octave_idx_type i = 0; i < nr; i++) | |
| 4425 | 2429 retval[k++] = chm(i,j); |
| 2430 } | |
| 2431 | |
| 2432 if (error_state) | |
| 2433 curr_state = conversion_error; | |
| 2117 | 2434 } |
| 4257 | 2435 |
| 2117 | 2436 return retval; |
| 2437 } | |
| 2438 | |
| 2439 // Ugh again and again. | |
| 2440 | |
| 2572 | 2441 template <class T> |
| 3620 | 2442 int |
| 3523 | 2443 do_printf_conv (std::ostream& os, const char *fmt, int nsa, int sa_1, |
| 4468 | 2444 int sa_2, T arg, const std::string& who) |
| 2572 | 2445 { |
| 3620 | 2446 int retval = 0; |
| 2447 | |
| 2572 | 2448 switch (nsa) |
| 2449 { | |
| 2450 case 2: | |
| 3640 | 2451 retval = octave_format (os, fmt, sa_1, sa_2, arg); |
| 2572 | 2452 break; |
| 2453 | |
| 2454 case 1: | |
| 3640 | 2455 retval = octave_format (os, fmt, sa_1, arg); |
| 2572 | 2456 break; |
| 2457 | |
| 2458 case 0: | |
| 3640 | 2459 retval = octave_format (os, fmt, arg); |
| 2572 | 2460 break; |
| 2461 | |
| 2462 default: | |
| 4468 | 2463 ::error ("%s: internal error handling format", who.c_str ()); |
| 2572 | 2464 break; |
| 2465 } | |
| 3620 | 2466 |
| 2467 return retval; | |
| 2572 | 2468 } |
| 2469 | |
| 3620 | 2470 template int |
| 4468 | 2471 do_printf_conv (std::ostream&, const char*, int, int, int, int, |
| 2472 const std::string&); | |
| 2473 | |
| 2474 template int | |
| 2475 do_printf_conv (std::ostream&, const char*, int, int, int, long, | |
| 2476 const std::string&); | |
| 2477 | |
| 3878 | 2478 template int |
| 4468 | 2479 do_printf_conv (std::ostream&, const char*, int, int, int, unsigned int, |
| 2480 const std::string&); | |
| 2481 | |
| 2482 template int | |
| 2483 do_printf_conv (std::ostream&, const char*, int, int, int, unsigned long, | |
| 2484 const std::string&); | |
| 2485 | |
| 2486 template int | |
| 2487 do_printf_conv (std::ostream&, const char*, int, int, int, double, | |
| 2488 const std::string&); | |
| 2489 | |
| 2490 template int | |
| 2491 do_printf_conv (std::ostream&, const char*, int, int, int, const char*, | |
| 2492 const std::string&); | |
| 2117 | 2493 |
| 6492 | 2494 #define DO_DOUBLE_CONV(TQUAL) \ |
| 2495 do \ | |
| 2496 { \ | |
| 7199 | 2497 if (val > std::numeric_limits<TQUAL long>::max () \ |
| 2498 || val < std::numeric_limits<TQUAL long>::min ()) \ | |
| 6492 | 2499 { \ |
| 7199 | 2500 std::string tfmt = fmt; \ |
| 6492 | 2501 \ |
| 7199 | 2502 tfmt.replace (tfmt.rfind (elt->type), 1, ".f"); \ |
| 6492 | 2503 \ |
| 7199 | 2504 if (elt->modifier == 'l') \ |
| 2505 tfmt.replace (tfmt.rfind (elt->modifier), 1, ""); \ | |
| 2506 \ | |
| 2507 retval += do_printf_conv (os, tfmt.c_str (), nsa, sa_1, sa_2, \ | |
| 2508 val, who); \ | |
| 6492 | 2509 } \ |
| 2510 else \ | |
| 7199 | 2511 retval += do_printf_conv (os, fmt, nsa, sa_1, sa_2, \ |
| 2512 static_cast<TQUAL long> (val), who); \ | |
| 6492 | 2513 } \ |
| 2514 while (0) | |
| 2515 | |
| 2117 | 2516 int |
| 2517 octave_base_stream::do_printf (printf_format_list& fmt_list, | |
| 4468 | 2518 const octave_value_list& args, |
| 2519 const std::string& who) | |
| 2117 | 2520 { |
| 3620 | 2521 int retval = 0; |
| 2117 | 2522 |
| 3640 | 2523 int nconv = fmt_list.num_conversions (); |
| 2524 | |
| 3523 | 2525 std::ostream *osp = output_stream (); |
| 2117 | 2526 |
| 2527 if (osp) | |
| 2528 { | |
| 3523 | 2529 std::ostream& os = *osp; |
| 2117 | 2530 |
| 2531 const printf_format_elt *elt = fmt_list.first (); | |
| 2532 | |
| 7352 | 2533 printf_value_cache val_cache (args, who); |
| 2534 | |
| 2535 if (error_state) | |
| 2536 return retval; | |
| 2117 | 2537 |
| 2538 for (;;) | |
| 2539 { | |
| 4153 | 2540 OCTAVE_QUIT; |
| 2541 | |
| 2117 | 2542 if (elt) |
| 2543 { | |
| 3640 | 2544 // NSA is the number of `star' args to convert. |
| 2545 | |
| 2546 int nsa = (elt->fw < 0) + (elt->prec < 0); | |
| 2117 | 2547 |
| 2548 int sa_1 = 0; | |
| 2549 int sa_2 = 0; | |
| 2550 | |
| 2551 if (nsa > 0) | |
| 2552 { | |
| 2553 sa_1 = val_cache.int_value (); | |
| 2554 | |
| 2555 if (! val_cache) | |
| 2556 break; | |
| 2557 else | |
| 2558 { | |
| 2559 if (nsa > 1) | |
| 2560 { | |
| 2561 sa_2 = val_cache.int_value (); | |
| 2562 | |
| 2563 if (! val_cache) | |
| 2564 break; | |
| 2565 } | |
| 2566 } | |
| 2567 } | |
| 2568 | |
| 2569 const char *fmt = elt->text; | |
| 2570 | |
| 3640 | 2571 if (elt->type == '%') |
| 2572 { | |
| 2573 os << "%"; | |
| 2574 retval++; | |
| 2575 } | |
| 2576 else if (elt->args == 0 && elt->text) | |
| 2577 { | |
| 2578 os << elt->text; | |
| 2579 retval += strlen (elt->text); | |
| 2580 } | |
| 4257 | 2581 else if (elt->type == 's') |
| 3640 | 2582 { |
| 2583 std::string val = val_cache.string_value (); | |
| 2584 | |
| 2585 if (val_cache) | |
| 2586 retval += do_printf_conv (os, fmt, nsa, sa_1, | |
| 4468 | 2587 sa_2, val.c_str (), who); |
| 3640 | 2588 else |
| 2589 break; | |
| 2590 } | |
| 2117 | 2591 else |
| 2592 { | |
| 3640 | 2593 double val = val_cache.double_value (); |
| 2594 | |
| 2595 if (val_cache) | |
| 2117 | 2596 { |
| 6492 | 2597 if (lo_ieee_isnan (val) || xisinf (val)) |
| 4303 | 2598 { |
| 2599 std::string tfmt = fmt; | |
| 6865 | 2600 std::string::size_type i1, i2; |
| 2601 | |
| 2602 tfmt.replace ((i1 = tfmt.rfind (elt->type)), | |
| 2603 1, 1, 's'); | |
| 2604 | |
| 2605 if ((i2 = tfmt.rfind ('.')) != NPOS && i2 < i1) | |
| 2606 { | |
| 2607 tfmt.erase (i2, i1-i2); | |
| 2608 if (elt->prec < 0) | |
| 2609 nsa--; | |
| 2610 } | |
| 6492 | 2611 |
| 2612 const char *tval = xisinf (val) | |
| 2613 ? (val < 0 ? "-Inf" : "Inf") | |
| 2614 : (lo_ieee_is_NA (val) ? "NA" : "NaN"); | |
| 2615 | |
| 2616 retval += do_printf_conv (os, tfmt.c_str (), | |
| 2617 nsa, sa_1, sa_2, | |
| 2618 tval, who); | |
| 4303 | 2619 } |
| 2620 else | |
| 3640 | 2621 { |
| 6492 | 2622 char type = elt->type; |
| 2623 | |
| 2624 switch (type) | |
| 4303 | 2625 { |
| 2626 case 'd': case 'i': case 'c': | |
| 7227 | 2627 DO_DOUBLE_CONV (OCTAVE_EMPTY_CPP_ARG); |
| 4303 | 2628 break; |
| 2629 | |
| 2630 case 'o': case 'x': case 'X': case 'u': | |
| 6492 | 2631 DO_DOUBLE_CONV (unsigned); |
| 4303 | 2632 break; |
| 2633 | |
| 2634 case 'f': case 'e': case 'E': | |
| 2635 case 'g': case 'G': | |
| 2636 retval | |
| 2637 += do_printf_conv (os, fmt, nsa, sa_1, sa_2, | |
| 4468 | 2638 val, who); |
| 4303 | 2639 break; |
| 2640 | |
| 2641 default: | |
| 4468 | 2642 error ("%s: invalid format specifier", |
| 2643 who.c_str ()); | |
| 4303 | 2644 return -1; |
| 2645 break; | |
| 2646 } | |
| 3640 | 2647 } |
| 2117 | 2648 } |
| 2649 else | |
| 3620 | 2650 break; |
| 2117 | 2651 } |
| 2652 | |
| 3620 | 2653 if (! os) |
| 2117 | 2654 { |
| 4468 | 2655 error ("%s: write error", who.c_str ()); |
| 2117 | 2656 break; |
| 2657 } | |
| 2658 } | |
| 2659 else | |
| 2660 { | |
| 4468 | 2661 ::error ("%s: internal error handling format", who.c_str ()); |
| 2117 | 2662 retval = -1; |
| 2663 break; | |
| 2664 } | |
| 2665 | |
| 3640 | 2666 elt = fmt_list.next (nconv > 0 && ! val_cache.exhausted ()); |
| 2667 | |
| 2668 if (! elt || (val_cache.exhausted () && elt->args > 0)) | |
| 2669 break; | |
| 2670 } | |
| 2117 | 2671 } |
| 3640 | 2672 else |
| 4468 | 2673 invalid_operation (who, "writing"); |
| 2117 | 2674 |
| 2675 return retval; | |
| 2676 } | |
| 2677 | |
| 2678 int | |
| 3640 | 2679 octave_base_stream::printf (const std::string& fmt, |
| 4468 | 2680 const octave_value_list& args, |
| 2681 const std::string& who) | |
| 2117 | 2682 { |
| 3640 | 2683 int retval = 0; |
| 2684 | |
| 2685 printf_format_list fmt_list (fmt); | |
| 2686 | |
| 2687 if (fmt_list.num_conversions () == -1) | |
| 4468 | 2688 ::error ("%s: invalid format specified", who.c_str ()); |
| 2117 | 2689 else |
| 4468 | 2690 retval = do_printf (fmt_list, args, who); |
| 2117 | 2691 |
| 2692 return retval; | |
| 2693 } | |
| 2694 | |
| 2695 int | |
| 4468 | 2696 octave_base_stream::puts (const std::string& s, const std::string& who) |
| 2117 | 2697 { |
| 2698 int retval = -1; | |
| 2699 | |
| 3523 | 2700 std::ostream *osp = output_stream (); |
| 2117 | 2701 |
| 2702 if (osp) | |
| 2703 { | |
| 3523 | 2704 std::ostream& os = *osp; |
| 2117 | 2705 |
| 2706 os << s; | |
| 2707 | |
| 2708 if (os) | |
| 2709 { | |
| 5775 | 2710 // FIXME -- why does this seem to be necessary? |
| 2117 | 2711 // Without it, output from a loop like |
| 2712 // | |
| 2713 // for i = 1:100, fputs (stdout, "foo\n"); endfor | |
| 2714 // | |
| 2715 // doesn't seem to go to the pager immediately. | |
| 2716 | |
| 2717 os.flush (); | |
| 2718 | |
| 2719 if (os) | |
| 2720 retval = 0; | |
| 2721 else | |
| 4468 | 2722 error ("%s: write error", who.c_str ()); |
| 2117 | 2723 } |
| 2724 else | |
| 4468 | 2725 error ("%s: write error", who.c_str ()); |
| 2117 | 2726 } |
| 2727 else | |
| 4468 | 2728 invalid_operation (who, "writing"); |
| 2117 | 2729 |
| 2730 return retval; | |
| 2731 } | |
| 2732 | |
| 2733 // Return current error message for this stream. | |
| 2734 | |
| 3536 | 2735 std::string |
| 2435 | 2736 octave_base_stream::error (bool clear_err, int& err_num) |
| 2117 | 2737 { |
| 2435 | 2738 err_num = fail ? -1 : 0; |
| 2117 | 2739 |
| 3523 | 2740 std::string tmp = errmsg; |
| 2117 | 2741 |
| 2742 if (clear_err) | |
| 2743 clear (); | |
| 2744 | |
| 2745 return tmp; | |
| 2746 } | |
| 2747 | |
| 2748 void | |
| 4468 | 2749 octave_base_stream::invalid_operation (const std::string& who, const char *rw) |
| 2117 | 2750 { |
| 4468 | 2751 // Note that this is not ::error () ! |
| 2752 | |
| 6297 | 2753 error (who, std::string ("stream not open for ") + rw); |
| 2117 | 2754 } |
| 2755 | |
| 3552 | 2756 octave_stream::octave_stream (octave_base_stream *bs) |
| 3340 | 2757 : rep (bs) |
| 2758 { | |
| 2759 if (rep) | |
| 2760 rep->count = 1; | |
| 2761 } | |
| 2762 | |
| 2763 octave_stream::~octave_stream (void) | |
| 2764 { | |
| 2765 if (rep && --rep->count == 0) | |
| 2766 delete rep; | |
| 2767 } | |
| 2768 | |
| 2769 octave_stream::octave_stream (const octave_stream& s) | |
| 2770 : rep (s.rep) | |
| 2771 { | |
| 2772 if (rep) | |
| 2773 rep->count++; | |
| 2774 } | |
| 2775 | |
| 2776 octave_stream& | |
| 2777 octave_stream::operator = (const octave_stream& s) | |
| 2778 { | |
| 2779 if (rep != s.rep) | |
| 2780 { | |
| 2781 if (rep && --rep->count == 0) | |
| 2782 delete rep; | |
| 2783 | |
| 2784 rep = s.rep; | |
| 2785 | |
| 2786 if (rep) | |
| 2787 rep->count++; | |
| 2788 } | |
| 2789 | |
| 2790 return *this; | |
| 2791 } | |
| 2792 | |
| 2117 | 2793 int |
| 2794 octave_stream::flush (void) | |
| 2795 { | |
| 2796 int retval = -1; | |
| 2797 | |
| 5659 | 2798 if (stream_ok ()) |
| 2117 | 2799 retval = rep->flush (); |
| 2800 | |
| 2801 return retval; | |
| 2802 } | |
| 2803 | |
| 3536 | 2804 std::string |
| 5275 | 2805 octave_stream::getl (octave_idx_type max_len, bool& err, const std::string& who) |
| 2117 | 2806 { |
| 3523 | 2807 std::string retval; |
| 2117 | 2808 |
| 5659 | 2809 if (stream_ok ()) |
| 4468 | 2810 retval = rep->getl (max_len, err, who); |
| 2117 | 2811 |
| 2812 return retval; | |
| 2813 } | |
| 2814 | |
| 3536 | 2815 std::string |
| 4468 | 2816 octave_stream::getl (const octave_value& tc_max_len, bool& err, |
| 2817 const std::string& who) | |
| 2117 | 2818 { |
| 3523 | 2819 std::string retval; |
| 2117 | 2820 |
| 2821 err = false; | |
| 2822 | |
| 2823 int conv_err = 0; | |
| 2824 | |
| 6345 | 2825 int max_len = -1; |
| 2826 | |
| 2827 if (tc_max_len.is_defined ()) | |
| 2117 | 2828 { |
| 6345 | 2829 max_len = convert_to_valid_int (tc_max_len, conv_err); |
| 2830 | |
| 2831 if (conv_err || max_len < 0) | |
| 2832 { | |
| 2833 err = true; | |
| 2834 ::error ("%s: invalid maximum length specified", who.c_str ()); | |
| 2835 } | |
| 2117 | 2836 } |
| 6345 | 2837 |
| 2838 if (! error_state) | |
| 4468 | 2839 retval = getl (max_len, err, who); |
| 2117 | 2840 |
| 2841 return retval; | |
| 2842 } | |
| 2843 | |
| 3536 | 2844 std::string |
| 5275 | 2845 octave_stream::gets (octave_idx_type max_len, bool& err, const std::string& who) |
| 2117 | 2846 { |
| 3523 | 2847 std::string retval; |
| 2117 | 2848 |
| 5659 | 2849 if (stream_ok ()) |
| 4468 | 2850 retval = rep->gets (max_len, err, who); |
| 2117 | 2851 |
| 2852 return retval; | |
| 2853 } | |
| 2854 | |
| 3536 | 2855 std::string |
| 4468 | 2856 octave_stream::gets (const octave_value& tc_max_len, bool& err, |
| 2857 const std::string& who) | |
| 2117 | 2858 { |
| 3523 | 2859 std::string retval; |
| 2117 | 2860 |
| 2861 err = false; | |
| 2862 | |
| 2863 int conv_err = 0; | |
| 2864 | |
| 6345 | 2865 int max_len = -1; |
| 2866 | |
| 2867 if (tc_max_len.is_defined ()) | |
| 2117 | 2868 { |
| 6345 | 2869 max_len = convert_to_valid_int (tc_max_len, conv_err); |
| 2870 | |
| 2871 if (conv_err || max_len < 0) | |
| 2872 { | |
| 2873 err = true; | |
| 2874 ::error ("%s: invalid maximum length specified", who.c_str ()); | |
| 2875 } | |
| 2117 | 2876 } |
| 6345 | 2877 |
| 2878 if (! error_state) | |
| 4468 | 2879 retval = gets (max_len, err, who); |
| 2117 | 2880 |
| 2881 return retval; | |
| 2882 } | |
| 2883 | |
| 2884 int | |
| 4797 | 2885 octave_stream::seek (long offset, int origin) |
| 2117 | 2886 { |
| 5065 | 2887 int status = -1; |
| 2117 | 2888 |
| 5659 | 2889 if (stream_ok ()) |
| 4889 | 2890 { |
| 2891 clearerr (); | |
| 2892 | |
| 5065 | 2893 long orig_pos = rep->tell (); |
| 2894 | |
| 2895 status = rep->seek (offset, origin); | |
| 2896 | |
| 2897 if (status == 0) | |
| 2898 { | |
| 2899 long save_pos = rep->tell (); | |
| 2900 | |
| 2901 rep->seek (0, SEEK_END); | |
| 2902 | |
| 2903 long pos_eof = rep->tell (); | |
| 2904 | |
| 2905 // I don't think save_pos can be less than zero, but we'll | |
| 2906 // check anyway... | |
| 2907 | |
| 2908 if (save_pos > pos_eof || save_pos < 0) | |
| 2909 { | |
| 2910 // Seek outside bounds of file. Failure should leave | |
| 2911 // position unchanged. | |
| 2912 | |
| 2913 rep->seek (orig_pos, SEEK_SET); | |
| 2914 | |
| 2915 status = -1; | |
| 2916 } | |
| 2917 else | |
| 2918 { | |
| 2919 // Is it possible for this to fail? We are just | |
| 2920 // returning to a position after the first successful | |
| 2921 // seek. | |
| 2922 | |
| 2923 rep->seek (save_pos, SEEK_SET); | |
| 2924 } | |
| 2925 } | |
| 4889 | 2926 } |
| 2117 | 2927 |
| 5065 | 2928 return status; |
| 2117 | 2929 } |
| 2930 | |
| 2931 int | |
| 2932 octave_stream::seek (const octave_value& tc_offset, | |
| 2933 const octave_value& tc_origin) | |
| 2934 { | |
| 2935 int retval = -1; | |
| 2936 | |
| 4797 | 2937 long xoffset = tc_offset.long_value (true); |
| 4645 | 2938 |
| 2939 if (! error_state) | |
| 2117 | 2940 { |
| 4645 | 2941 int conv_err = 0; |
| 2942 | |
| 4797 | 2943 int origin = SEEK_SET; |
| 2117 | 2944 |
| 2341 | 2945 if (tc_origin.is_string ()) |
| 2117 | 2946 { |
| 3523 | 2947 std::string xorigin = tc_origin.string_value (); |
| 2341 | 2948 |
| 2949 if (xorigin == "bof") | |
| 4797 | 2950 origin = SEEK_SET; |
| 2341 | 2951 else if (xorigin == "cof") |
| 4797 | 2952 origin = SEEK_CUR; |
| 2341 | 2953 else if (xorigin == "eof") |
| 4797 | 2954 origin = SEEK_END; |
| 2117 | 2955 else |
| 2956 conv_err = -1; | |
| 2957 } | |
| 2341 | 2958 else |
| 2959 { | |
| 2960 int xorigin = convert_to_valid_int (tc_origin, conv_err); | |
| 2961 | |
| 2962 if (! conv_err) | |
| 2963 { | |
| 2964 if (xorigin == -1) | |
| 4797 | 2965 origin = SEEK_SET; |
| 2341 | 2966 else if (xorigin == 0) |
| 4797 | 2967 origin = SEEK_CUR; |
| 2341 | 2968 else if (xorigin == 1) |
| 4797 | 2969 origin = SEEK_END; |
| 2341 | 2970 else |
| 2971 conv_err = -1; | |
| 2972 } | |
| 2973 } | |
| 2117 | 2974 |
| 2975 if (! conv_err) | |
| 5065 | 2976 { |
| 2977 retval = seek (xoffset, origin); | |
| 2978 | |
| 2979 if (retval != 0) | |
| 2980 error ("fseek: failed to seek to requested position"); | |
| 2981 } | |
| 2117 | 2982 else |
| 2983 error ("fseek: invalid value for origin"); | |
| 2984 } | |
| 2985 else | |
| 2986 error ("fseek: invalid value for offset"); | |
| 2987 | |
| 2988 return retval; | |
| 2989 } | |
| 2990 | |
| 4797 | 2991 long |
| 2992 octave_stream::tell (void) | |
| 2117 | 2993 { |
| 4797 | 2994 long retval = -1; |
| 2117 | 2995 |
| 5659 | 2996 if (stream_ok ()) |
| 2117 | 2997 retval = rep->tell (); |
| 2998 | |
| 2999 return retval; | |
| 3000 } | |
| 3001 | |
| 3002 int | |
| 3003 octave_stream::rewind (void) | |
| 3004 { | |
| 6296 | 3005 return seek (0, SEEK_SET); |
| 2117 | 3006 } |
| 3007 | |
| 3340 | 3008 bool |
| 3009 octave_stream::is_open (void) const | |
| 3010 { | |
| 3011 bool retval = false; | |
| 3012 | |
| 5659 | 3013 if (stream_ok ()) |
| 3340 | 3014 retval = rep->is_open (); |
| 3015 | |
| 3016 return retval; | |
| 3017 } | |
| 3018 | |
| 3019 void | |
| 3020 octave_stream::close (void) | |
| 3021 { | |
| 5659 | 3022 if (stream_ok ()) |
| 3340 | 3023 rep->close (); |
| 3024 } | |
| 3025 | |
| 4944 | 3026 template <class RET_T, class READ_T> |
| 2117 | 3027 octave_value |
| 5275 | 3028 do_read (octave_stream& strm, octave_idx_type nr, octave_idx_type nc, octave_idx_type block_size, |
| 3029 octave_idx_type skip, bool do_float_fmt_conv, | |
| 3030 oct_mach_info::float_format from_flt_fmt, octave_idx_type& count) | |
| 2117 | 3031 { |
| 3032 octave_value retval; | |
| 3033 | |
| 4944 | 3034 RET_T nda; |
| 3035 | |
| 3036 count = 0; | |
| 3037 | |
| 3038 typename octave_array_type_traits<RET_T>::element_type elt_zero | |
| 3039 = typename octave_array_type_traits<RET_T>::element_type (); | |
| 3040 | |
| 3041 typename octave_array_type_traits<RET_T>::element_type *dat = 0; | |
| 3042 | |
| 5275 | 3043 octave_idx_type max_size = 0; |
| 3044 | |
| 3045 octave_idx_type final_nr = 0; | |
| 3046 octave_idx_type final_nc = 1; | |
| 4944 | 3047 |
| 3048 if (nr > 0) | |
| 3049 { | |
| 3050 if (nc > 0) | |
| 3051 { | |
| 3052 nda.resize (dim_vector (nr, nc), elt_zero); | |
| 3053 dat = nda.fortran_vec (); | |
| 3054 max_size = nr * nc; | |
| 3055 } | |
| 3056 else | |
| 3057 { | |
| 3058 nda.resize (dim_vector (nr, 32), elt_zero); | |
| 3059 dat = nda.fortran_vec (); | |
| 3060 max_size = nr * 32; | |
| 3061 } | |
| 3062 } | |
| 3063 else | |
| 3064 { | |
| 3065 nda.resize (dim_vector (32, 1), elt_zero); | |
| 3066 dat = nda.fortran_vec (); | |
| 3067 max_size = 32; | |
| 3068 } | |
| 3069 | |
| 5775 | 3070 // FIXME -- byte order for Cray? |
| 4944 | 3071 |
| 3072 bool swap = false; | |
| 3073 | |
| 3074 if (oct_mach_info::words_big_endian ()) | |
| 3075 swap = (from_flt_fmt == oct_mach_info::flt_fmt_ieee_little_endian | |
| 3076 || from_flt_fmt == oct_mach_info::flt_fmt_vax_g | |
| 3077 || from_flt_fmt == oct_mach_info::flt_fmt_vax_g); | |
| 3078 else | |
| 3079 swap = (from_flt_fmt == oct_mach_info::flt_fmt_ieee_big_endian); | |
| 3080 | |
| 3081 union | |
| 3082 { | |
| 3083 char buf[sizeof (typename octave_type_traits<READ_T>::val_type)]; | |
| 3084 typename octave_type_traits<READ_T>::val_type val; | |
| 3085 } u; | |
| 3086 | |
| 3087 std::istream *isp = strm.input_stream (); | |
| 3088 | |
| 3089 if (isp) | |
| 3090 { | |
| 3091 std::istream& is = *isp; | |
| 3092 | |
| 5275 | 3093 octave_idx_type elts_read = 0; |
| 4944 | 3094 |
| 3095 for (;;) | |
| 3096 { | |
| 5775 | 3097 // FIXME -- maybe there should be a special case for |
| 4944 | 3098 // skip == 0. |
| 3099 | |
| 3100 if (is) | |
| 3101 { | |
| 3102 if (nr > 0 && nc > 0 && count == max_size) | |
| 3103 { | |
| 3104 final_nr = nr; | |
| 3105 final_nc = nc; | |
| 3106 | |
| 3107 break; | |
| 3108 } | |
| 3109 | |
| 3110 is.read (u.buf, sizeof (typename octave_type_traits<READ_T>::val_type)); | |
| 3111 | |
| 3112 // We only swap bytes for integer types. For float | |
| 3113 // types, the format conversion will also handle byte | |
| 3114 // swapping. | |
| 3115 | |
| 3116 if (swap) | |
| 3117 swap_bytes<sizeof (typename octave_type_traits<READ_T>::val_type)> (u.buf); | |
| 3118 else if (do_float_fmt_conv) | |
| 3119 do_float_format_conversion | |
| 3120 (u.buf, | |
| 3121 sizeof (typename octave_type_traits<READ_T>::val_type), | |
| 3122 1, from_flt_fmt, oct_mach_info::float_format ()); | |
| 3123 | |
| 3124 typename octave_array_type_traits<RET_T>::element_type tmp | |
| 3125 = static_cast <typename octave_array_type_traits<RET_T>::element_type> (u.val); | |
| 3126 | |
| 5030 | 3127 if (is) |
| 4944 | 3128 { |
| 5030 | 3129 if (count == max_size) |
| 4944 | 3130 { |
| 5030 | 3131 max_size *= 2; |
| 3132 | |
| 3133 if (nr > 0) | |
| 3134 nda.resize (dim_vector (nr, max_size / nr), | |
| 3135 elt_zero); | |
| 3136 else | |
| 3137 nda.resize (dim_vector (max_size, 1), elt_zero); | |
| 3138 | |
| 3139 dat = nda.fortran_vec (); | |
| 4944 | 3140 } |
| 3141 | |
| 5030 | 3142 dat[count++] = tmp; |
| 3143 | |
| 3144 elts_read++; | |
| 3145 } | |
| 3146 | |
|
7538
2c4b0cbda85a
oct-stream.cc (do_read): stop reading if seek fails
John W. Eaton <jwe@octave.org>
parents:
7433
diff
changeset
|
3147 int seek_status = 0; |
|
2c4b0cbda85a
oct-stream.cc (do_read): stop reading if seek fails
John W. Eaton <jwe@octave.org>
parents:
7433
diff
changeset
|
3148 |
| 5030 | 3149 if (skip != 0 && elts_read == block_size) |
| 3150 { | |
|
7538
2c4b0cbda85a
oct-stream.cc (do_read): stop reading if seek fails
John W. Eaton <jwe@octave.org>
parents:
7433
diff
changeset
|
3151 seek_status = strm.seek (skip, SEEK_CUR); |
| 5030 | 3152 elts_read = 0; |
| 3153 } | |
| 3154 | |
|
7538
2c4b0cbda85a
oct-stream.cc (do_read): stop reading if seek fails
John W. Eaton <jwe@octave.org>
parents:
7433
diff
changeset
|
3155 if (is.eof () || seek_status < 0) |
| 5030 | 3156 { |
| 3157 if (nr > 0) | |
| 4944 | 3158 { |
| 5030 | 3159 if (count > nr) |
| 4944 | 3160 { |
| 5030 | 3161 final_nr = nr; |
| 3162 final_nc = (count - 1) / nr + 1; | |
| 4944 | 3163 } |
| 3164 else | |
| 3165 { | |
| 3166 final_nr = count; | |
| 3167 final_nc = 1; | |
| 3168 } | |
| 3169 } | |
| 5030 | 3170 else |
| 3171 { | |
| 3172 final_nr = count; | |
| 3173 final_nc = 1; | |
| 3174 } | |
| 3175 | |
| 4944 | 3176 break; |
| 3177 } | |
| 3178 } | |
| 5030 | 3179 else if (is.eof ()) |
| 3180 break; | |
| 4944 | 3181 } |
| 3182 } | |
| 3183 | |
| 5030 | 3184 nda.resize (dim_vector (final_nr, final_nc), elt_zero); |
| 3185 | |
| 3186 retval = nda; | |
| 4944 | 3187 |
| 3188 return retval; | |
| 3189 } | |
| 3190 | |
| 3191 #define DO_READ_VAL_TEMPLATE(RET_T, READ_T) \ | |
| 3192 template octave_value \ | |
| 5275 | 3193 do_read<RET_T, READ_T> (octave_stream&, octave_idx_type, octave_idx_type, octave_idx_type, octave_idx_type, bool, \ |
| 3194 oct_mach_info::float_format, octave_idx_type&) | |
| 4944 | 3195 |
| 5775 | 3196 // FIXME -- should we only have float if it is a different |
| 4944 | 3197 // size from double? |
| 3198 | |
| 3199 #define INSTANTIATE_DO_READ(VAL_T) \ | |
| 3200 DO_READ_VAL_TEMPLATE (VAL_T, octave_int8); \ | |
| 3201 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint8); \ | |
| 3202 DO_READ_VAL_TEMPLATE (VAL_T, octave_int16); \ | |
| 3203 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint16); \ | |
| 3204 DO_READ_VAL_TEMPLATE (VAL_T, octave_int32); \ | |
| 3205 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint32); \ | |
| 3206 DO_READ_VAL_TEMPLATE (VAL_T, octave_int64); \ | |
| 3207 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint64); \ | |
| 3208 DO_READ_VAL_TEMPLATE (VAL_T, float); \ | |
| 3209 DO_READ_VAL_TEMPLATE (VAL_T, double); \ | |
| 3210 DO_READ_VAL_TEMPLATE (VAL_T, char); \ | |
| 3211 DO_READ_VAL_TEMPLATE (VAL_T, signed char); \ | |
| 3212 DO_READ_VAL_TEMPLATE (VAL_T, unsigned char) | |
| 3213 | |
| 4970 | 3214 INSTANTIATE_DO_READ (int8NDArray); |
| 3215 INSTANTIATE_DO_READ (uint8NDArray); | |
| 3216 INSTANTIATE_DO_READ (int16NDArray); | |
| 3217 INSTANTIATE_DO_READ (uint16NDArray); | |
| 3218 INSTANTIATE_DO_READ (int32NDArray); | |
| 3219 INSTANTIATE_DO_READ (uint32NDArray); | |
| 3220 INSTANTIATE_DO_READ (int64NDArray); | |
| 3221 INSTANTIATE_DO_READ (uint64NDArray); | |
| 3222 // INSTANTIATE_DO_READ (floatNDArray); | |
| 3223 INSTANTIATE_DO_READ (NDArray); | |
| 3224 INSTANTIATE_DO_READ (charNDArray); | |
| 5780 | 3225 INSTANTIATE_DO_READ (boolNDArray); |
| 4944 | 3226 |
| 5275 | 3227 typedef octave_value (*read_fptr) (octave_stream&, octave_idx_type, octave_idx_type, octave_idx_type, octave_idx_type, bool, |
| 3228 oct_mach_info::float_format ffmt, octave_idx_type&); | |
| 4944 | 3229 |
| 7433 | 3230 NO_INSTANTIATE_ARRAY_SORT (read_fptr); |
| 6708 | 3231 INSTANTIATE_ARRAY (read_fptr,); |
| 4944 | 3232 template class Array2<read_fptr>; |
| 3233 | |
| 3234 #define FILL_TABLE_ROW(R, VAL_T) \ | |
| 3235 read_fptr_table(R,oct_data_conv::dt_int8) = do_read<VAL_T, octave_int8>; \ | |
| 3236 read_fptr_table(R,oct_data_conv::dt_uint8) = do_read<VAL_T, octave_uint8>; \ | |
| 3237 read_fptr_table(R,oct_data_conv::dt_int16) = do_read<VAL_T, octave_int16>; \ | |
| 3238 read_fptr_table(R,oct_data_conv::dt_uint16) = do_read<VAL_T, octave_uint16>; \ | |
| 3239 read_fptr_table(R,oct_data_conv::dt_int32) = do_read<VAL_T, octave_int32>; \ | |
| 3240 read_fptr_table(R,oct_data_conv::dt_uint32) = do_read<VAL_T, octave_uint32>; \ | |
| 3241 read_fptr_table(R,oct_data_conv::dt_int64) = do_read<VAL_T, octave_int64>; \ | |
| 3242 read_fptr_table(R,oct_data_conv::dt_uint64) = do_read<VAL_T, octave_uint64>; \ | |
| 3243 read_fptr_table(R,oct_data_conv::dt_single) = do_read<VAL_T, float>; \ | |
| 3244 read_fptr_table(R,oct_data_conv::dt_double) = do_read<VAL_T, double>; \ | |
| 3245 read_fptr_table(R,oct_data_conv::dt_char) = do_read<VAL_T, char>; \ | |
| 3246 read_fptr_table(R,oct_data_conv::dt_schar) = do_read<VAL_T, signed char>; \ | |
| 4970 | 3247 read_fptr_table(R,oct_data_conv::dt_uchar) = do_read<VAL_T, unsigned char>; \ |
| 3248 read_fptr_table(R,oct_data_conv::dt_logical) = do_read<VAL_T, unsigned char> | |
| 4944 | 3249 |
| 3250 octave_value | |
| 5275 | 3251 octave_stream::read (const Array<double>& size, octave_idx_type block_size, |
| 4944 | 3252 oct_data_conv::data_type input_type, |
| 3253 oct_data_conv::data_type output_type, | |
| 5275 | 3254 octave_idx_type skip, oct_mach_info::float_format ffmt, |
| 3255 octave_idx_type& char_count) | |
| 4944 | 3256 { |
| 3257 static bool initialized = false; | |
| 3258 | |
| 3259 // Table function pointers for return types x read types. | |
| 3260 | |
| 4970 | 3261 static Array2<read_fptr> read_fptr_table (oct_data_conv::dt_unknown, 14, 0); |
| 4944 | 3262 |
| 3263 if (! initialized) | |
| 3264 { | |
| 3265 FILL_TABLE_ROW (oct_data_conv::dt_int8, int8NDArray); | |
| 3266 FILL_TABLE_ROW (oct_data_conv::dt_uint8, uint8NDArray); | |
| 3267 FILL_TABLE_ROW (oct_data_conv::dt_int16, int16NDArray); | |
| 3268 FILL_TABLE_ROW (oct_data_conv::dt_uint16, uint16NDArray); | |
| 3269 FILL_TABLE_ROW (oct_data_conv::dt_int32, int32NDArray); | |
| 3270 FILL_TABLE_ROW (oct_data_conv::dt_uint32, uint32NDArray); | |
| 3271 FILL_TABLE_ROW (oct_data_conv::dt_int64, int64NDArray); | |
| 3272 FILL_TABLE_ROW (oct_data_conv::dt_uint64, uint64NDArray); | |
|
7724
932b0cf51834
octave_stream::read: allow single data type specification but return double
John W. Eaton <jwe@octave.org>
parents:
7709
diff
changeset
|
3273 // FIXME -- the following line allows things like int8=>single |
|
932b0cf51834
octave_stream::read: allow single data type specification but return double
John W. Eaton <jwe@octave.org>
parents:
7709
diff
changeset
|
3274 // to work, but they will actually return a double value. We |
|
932b0cf51834
octave_stream::read: allow single data type specification but return double
John W. Eaton <jwe@octave.org>
parents:
7709
diff
changeset
|
3275 // need a floatNDArray for this to work properly. |
|
932b0cf51834
octave_stream::read: allow single data type specification but return double
John W. Eaton <jwe@octave.org>
parents:
7709
diff
changeset
|
3276 FILL_TABLE_ROW (oct_data_conv::dt_single, NDArray); |
| 4944 | 3277 FILL_TABLE_ROW (oct_data_conv::dt_double, NDArray); |
| 3278 FILL_TABLE_ROW (oct_data_conv::dt_char, charNDArray); | |
| 3279 FILL_TABLE_ROW (oct_data_conv::dt_schar, charNDArray); | |
| 3280 FILL_TABLE_ROW (oct_data_conv::dt_uchar, charNDArray); | |
| 4970 | 3281 FILL_TABLE_ROW (oct_data_conv::dt_logical, boolNDArray); |
| 4944 | 3282 |
| 3283 initialized = true; | |
| 3284 } | |
| 3285 | |
| 3286 octave_value retval; | |
| 3287 | |
| 5659 | 3288 if (stream_ok ()) |
| 4944 | 3289 { |
| 5775 | 3290 // FIXME -- we may eventually want to make this extensible. |
| 3291 | |
| 3292 // FIXME -- we need a better way to ensure that this | |
| 4944 | 3293 // numbering stays consistent with the order of the elements in the |
| 3294 // data_type enum in the oct_data_conv class. | |
| 3295 | |
| 3296 char_count = 0; | |
| 3297 | |
| 5275 | 3298 octave_idx_type nr = -1; |
| 3299 octave_idx_type nc = -1; | |
| 4944 | 3300 |
| 3301 bool ignore; | |
| 3302 | |
| 3303 get_size (size, nr, nc, ignore, "fread"); | |
| 3304 | |
| 3305 if (! error_state) | |
| 3306 { | |
| 3307 if (nr == 0 || nc == 0) | |
| 3308 retval = Matrix (nr, nc); | |
| 3309 else | |
| 3310 { | |
| 3311 if (ffmt == oct_mach_info::flt_fmt_unknown) | |
| 3312 ffmt = float_format (); | |
| 3313 | |
| 3314 read_fptr fcn = read_fptr_table (output_type, input_type); | |
| 3315 | |
| 3316 bool do_float_fmt_conv = ((input_type == oct_data_conv::dt_double | |
| 3317 || input_type == oct_data_conv::dt_single) | |
| 3318 && ffmt != float_format ()); | |
| 3319 | |
| 3320 if (fcn) | |
| 3321 { | |
| 3322 retval = (*fcn) (*this, nr, nc, block_size, skip, | |
| 3323 do_float_fmt_conv, ffmt, char_count); | |
| 3324 | |
| 5775 | 3325 // FIXME -- kluge! |
| 4944 | 3326 |
| 3327 if (! error_state | |
| 3328 && (output_type == oct_data_conv::dt_char | |
| 3329 || output_type == oct_data_conv::dt_schar | |
| 3330 || output_type == oct_data_conv::dt_uchar)) | |
| 3331 retval = octave_value (retval.char_matrix_value (), true); | |
| 3332 } | |
| 3333 else | |
| 3334 error ("fread: unable to read and convert requested types"); | |
| 3335 } | |
| 3336 } | |
| 3337 else | |
| 3338 invalid_operation ("fread", "reading"); | |
| 3339 } | |
| 2117 | 3340 |
| 3341 return retval; | |
| 3342 } | |
| 3343 | |
| 5275 | 3344 octave_idx_type |
| 3345 octave_stream::write (const octave_value& data, octave_idx_type block_size, | |
| 3346 oct_data_conv::data_type output_type, octave_idx_type skip, | |
| 2317 | 3347 oct_mach_info::float_format flt_fmt) |
| 2117 | 3348 { |
| 5275 | 3349 octave_idx_type retval = -1; |
| 2117 | 3350 |
| 5659 | 3351 if (stream_ok ()) |
| 4944 | 3352 { |
| 3353 if (! error_state) | |
| 3354 { | |
| 3355 if (flt_fmt == oct_mach_info::flt_fmt_unknown) | |
| 3356 flt_fmt = float_format (); | |
| 3357 | |
| 5275 | 3358 octave_idx_type status = data.write (*this, block_size, output_type, |
| 4944 | 3359 skip, flt_fmt); |
| 3360 | |
| 3361 if (status < 0) | |
| 3362 error ("fwrite: write error"); | |
| 3363 else | |
| 3364 retval = status; | |
| 3365 } | |
| 3366 else | |
| 3367 invalid_operation ("fwrite", "writing"); | |
| 3368 } | |
| 2117 | 3369 |
| 3370 return retval; | |
| 3371 } | |
| 3372 | |
| 4944 | 3373 template <class T> |
| 3374 void | |
| 3375 write_int (std::ostream& os, bool swap, const T& val) | |
| 3376 { | |
| 3377 typename octave_type_traits<T>::val_type tmp = val.value (); | |
| 3378 | |
| 3379 if (swap) | |
| 3380 swap_bytes<sizeof (typename octave_type_traits<T>::val_type)> (&tmp); | |
| 3381 | |
| 3382 os.write (reinterpret_cast<const char *> (&tmp), | |
| 3383 sizeof (typename octave_type_traits<T>::val_type)); | |
| 3384 } | |
| 3385 | |
| 3386 template void write_int (std::ostream&, bool, const octave_int8&); | |
| 3387 template void write_int (std::ostream&, bool, const octave_uint8&); | |
| 3388 template void write_int (std::ostream&, bool, const octave_int16&); | |
| 3389 template void write_int (std::ostream&, bool, const octave_uint16&); | |
| 3390 template void write_int (std::ostream&, bool, const octave_int32&); | |
| 3391 template void write_int (std::ostream&, bool, const octave_uint32&); | |
| 3392 template void write_int (std::ostream&, bool, const octave_int64&); | |
| 3393 template void write_int (std::ostream&, bool, const octave_uint64&); | |
| 3394 | |
| 3395 template <class T> | |
| 3396 static inline bool | |
| 3397 do_write (std::ostream& os, const T& val, oct_data_conv::data_type output_type, | |
| 3398 oct_mach_info::float_format flt_fmt, bool swap, | |
| 3399 bool do_float_conversion) | |
| 3400 { | |
| 3401 bool retval = true; | |
| 3402 | |
| 3403 // For compatibility, Octave converts to the output type, then | |
| 3404 // writes. This means that truncation happens on the conversion. | |
| 3405 // For example, the following program prints 0: | |
| 3406 // | |
| 3407 // x = int8 (-1) | |
| 3408 // f = fopen ("foo.dat", "w"); | |
| 3409 // fwrite (f, x, "unsigned char"); | |
| 3410 // fclose (f); | |
| 3411 // f = fopen ("foo.dat", "r"); | |
| 3412 // y = fread (f, 1, "unsigned char"); | |
| 3413 // printf ("%d\n", y); | |
| 3414 | |
| 3415 switch (output_type) | |
| 3416 { | |
| 3417 case oct_data_conv::dt_char: | |
| 3418 case oct_data_conv::dt_schar: | |
| 3419 case oct_data_conv::dt_int8: | |
| 3420 write_int (os, swap, octave_int8 (val)); | |
| 3421 break; | |
| 3422 | |
| 3423 case oct_data_conv::dt_uchar: | |
| 3424 case oct_data_conv::dt_uint8: | |
| 3425 write_int (os, swap, octave_uint8 (val)); | |
| 3426 break; | |
| 3427 | |
| 3428 case oct_data_conv::dt_int16: | |
| 3429 write_int (os, swap, octave_int16 (val)); | |
| 3430 break; | |
| 3431 | |
| 3432 case oct_data_conv::dt_uint16: | |
| 3433 write_int (os, swap, octave_uint16 (val)); | |
| 3434 break; | |
| 3435 | |
| 3436 case oct_data_conv::dt_int32: | |
| 3437 write_int (os, swap, octave_int32 (val)); | |
| 3438 break; | |
| 3439 | |
| 3440 case oct_data_conv::dt_uint32: | |
| 3441 write_int (os, swap, octave_uint32 (val)); | |
| 3442 break; | |
| 3443 | |
| 3444 case oct_data_conv::dt_int64: | |
| 3445 write_int (os, swap, octave_int64 (val)); | |
| 3446 break; | |
| 3447 | |
| 3448 case oct_data_conv::dt_uint64: | |
| 3449 write_int (os, swap, octave_uint64 (val)); | |
| 3450 break; | |
| 3451 | |
| 3452 case oct_data_conv::dt_single: | |
| 3453 { | |
| 3454 float f = static_cast<float> (val); | |
| 3455 | |
| 3456 if (do_float_conversion) | |
| 3457 do_float_format_conversion (&f, 1, flt_fmt); | |
| 3458 | |
| 3459 os.write (reinterpret_cast<const char *> (&f), sizeof (float)); | |
| 3460 } | |
| 3461 break; | |
| 3462 | |
| 3463 case oct_data_conv::dt_double: | |
| 3464 { | |
| 3465 double d = static_cast<double> (val); | |
| 3466 if (do_float_conversion) | |
| 3467 do_double_format_conversion (&d, 1, flt_fmt); | |
| 3468 | |
| 3469 os.write (reinterpret_cast<const char *> (&d), sizeof (double)); | |
| 3470 } | |
| 3471 break; | |
| 3472 | |
| 3473 default: | |
| 3474 retval = false; | |
| 3475 (*current_liboctave_error_handler) | |
| 3476 ("write: invalid type specification"); | |
| 3477 break; | |
| 3478 } | |
| 3479 | |
| 3480 return retval; | |
| 3481 } | |
| 3482 | |
| 5887 | 3483 template bool |
| 3484 do_write (std::ostream&, const octave_int8&, oct_data_conv::data_type, | |
| 3485 oct_mach_info::float_format, bool, bool); | |
| 3486 | |
| 3487 template bool | |
| 3488 do_write (std::ostream&, const octave_uint8&, oct_data_conv::data_type, | |
| 3489 oct_mach_info::float_format, bool, bool); | |
| 3490 | |
| 3491 template bool | |
| 3492 do_write (std::ostream&, const octave_int16&, oct_data_conv::data_type, | |
| 3493 oct_mach_info::float_format, bool, bool); | |
| 3494 | |
| 3495 template bool | |
| 3496 do_write (std::ostream&, const octave_uint16&, oct_data_conv::data_type, | |
| 3497 oct_mach_info::float_format, bool, bool); | |
| 3498 | |
| 3499 template bool | |
| 3500 do_write (std::ostream&, const octave_int32&, oct_data_conv::data_type, | |
| 3501 oct_mach_info::float_format, bool, bool); | |
| 3502 | |
| 3503 template bool | |
| 3504 do_write (std::ostream&, const octave_uint32&, oct_data_conv::data_type, | |
| 3505 oct_mach_info::float_format, bool, bool); | |
| 3506 | |
| 3507 template bool | |
| 3508 do_write (std::ostream&, const octave_int64&, oct_data_conv::data_type, | |
| 3509 oct_mach_info::float_format, bool, bool); | |
| 3510 | |
| 3511 template bool | |
| 3512 do_write (std::ostream&, const octave_uint64&, oct_data_conv::data_type, | |
| 3513 oct_mach_info::float_format, bool, bool); | |
| 3514 | |
| 4944 | 3515 template <class T> |
| 5275 | 3516 octave_idx_type |
| 3517 octave_stream::write (const Array<T>& data, octave_idx_type block_size, | |
| 4944 | 3518 oct_data_conv::data_type output_type, |
| 5275 | 3519 octave_idx_type skip, oct_mach_info::float_format flt_fmt) |
| 4944 | 3520 { |
| 5275 | 3521 octave_idx_type retval = -1; |
| 4944 | 3522 |
| 3523 bool status = true; | |
| 3524 | |
| 5275 | 3525 octave_idx_type count = 0; |
| 4944 | 3526 |
| 3527 const T *d = data.data (); | |
| 3528 | |
| 5275 | 3529 octave_idx_type n = data.length (); |
| 4944 | 3530 |
| 3531 oct_mach_info::float_format native_flt_fmt | |
| 3532 = oct_mach_info::float_format (); | |
| 3533 | |
| 3534 bool do_float_conversion = (flt_fmt != native_flt_fmt); | |
| 3535 | |
| 5775 | 3536 // FIXME -- byte order for Cray? |
| 4944 | 3537 |
| 3538 bool swap = false; | |
| 3539 | |
| 3540 if (oct_mach_info::words_big_endian ()) | |
| 3541 swap = (flt_fmt == oct_mach_info::flt_fmt_ieee_little_endian | |
| 3542 || flt_fmt == oct_mach_info::flt_fmt_vax_g | |
| 3543 || flt_fmt == oct_mach_info::flt_fmt_vax_g); | |
| 3544 else | |
| 3545 swap = (flt_fmt == oct_mach_info::flt_fmt_ieee_big_endian); | |
| 3546 | |
| 5275 | 3547 for (octave_idx_type i = 0; i < n; i++) |
| 4944 | 3548 { |
| 3549 std::ostream *osp = output_stream (); | |
| 3550 | |
| 3551 if (osp) | |
| 3552 { | |
| 3553 std::ostream& os = *osp; | |
| 3554 | |
| 5254 | 3555 // It seems that Matlab writes zeros instead of actually |
| 3556 // seeking. Hmm... | |
| 3557 | |
| 4944 | 3558 if (skip != 0 && (i % block_size) == 0) |
| 5254 | 3559 { |
| 5775 | 3560 // FIXME -- probably should try to write larger |
| 5254 | 3561 // blocks... |
| 3562 | |
| 3563 unsigned char zero = 0; | |
| 3564 for (int j = 0; j < skip; j++) | |
| 3565 os.write (reinterpret_cast<const char *> (&zero), 1); | |
| 3566 } | |
| 4944 | 3567 |
| 3568 if (os) | |
| 3569 { | |
| 3570 status = do_write (os, d[i], output_type, flt_fmt, swap, | |
| 3571 do_float_conversion); | |
| 3572 | |
| 3573 if (os && status) | |
| 3574 count++; | |
| 3575 else | |
| 3576 break; | |
| 3577 } | |
| 3578 else | |
| 3579 { | |
| 3580 status = false; | |
| 3581 break; | |
| 3582 } | |
| 3583 } | |
| 3584 else | |
| 3585 { | |
| 3586 status = false; | |
| 3587 break; | |
| 3588 } | |
| 3589 } | |
| 3590 | |
| 3591 if (status) | |
| 3592 retval = count; | |
| 3593 | |
| 3594 return retval; | |
| 3595 } | |
| 3596 | |
| 5275 | 3597 template octave_idx_type |
| 3598 octave_stream::write (const Array<char>&, octave_idx_type, | |
| 4944 | 3599 oct_data_conv::data_type, |
| 5275 | 3600 octave_idx_type, oct_mach_info::float_format); |
| 3601 | |
| 3602 template octave_idx_type | |
| 3603 octave_stream::write (const Array<bool>&, octave_idx_type, | |
| 4970 | 3604 oct_data_conv::data_type, |
| 5275 | 3605 octave_idx_type, oct_mach_info::float_format); |
| 3606 | |
| 3607 template octave_idx_type | |
| 3608 octave_stream::write (const Array<double>&, octave_idx_type, | |
| 4944 | 3609 oct_data_conv::data_type, |
| 5275 | 3610 octave_idx_type, oct_mach_info::float_format); |
| 3611 | |
| 3612 template octave_idx_type | |
| 3613 octave_stream::write (const Array<octave_int8>&, octave_idx_type, | |
| 4944 | 3614 oct_data_conv::data_type, |
| 5275 | 3615 octave_idx_type, oct_mach_info::float_format); |
| 3616 | |
| 3617 template octave_idx_type | |
| 3618 octave_stream::write (const Array<octave_uint8>&, octave_idx_type, | |
| 4944 | 3619 oct_data_conv::data_type, |
| 5275 | 3620 octave_idx_type, oct_mach_info::float_format); |
| 3621 | |
| 3622 template octave_idx_type | |
| 3623 octave_stream::write (const Array<octave_int16>&, octave_idx_type, | |
| 4944 | 3624 oct_data_conv::data_type, |
| 5275 | 3625 octave_idx_type, oct_mach_info::float_format); |
| 3626 | |
| 3627 template octave_idx_type | |
| 3628 octave_stream::write (const Array<octave_uint16>&, octave_idx_type, | |
| 4944 | 3629 oct_data_conv::data_type, |
| 5275 | 3630 octave_idx_type, oct_mach_info::float_format); |
| 3631 | |
| 3632 template octave_idx_type | |
| 3633 octave_stream::write (const Array<octave_int32>&, octave_idx_type, | |
| 4944 | 3634 oct_data_conv::data_type, |
| 5275 | 3635 octave_idx_type, oct_mach_info::float_format); |
| 3636 | |
| 3637 template octave_idx_type | |
| 3638 octave_stream::write (const Array<octave_uint32>&, octave_idx_type, | |
| 4944 | 3639 oct_data_conv::data_type, |
| 5275 | 3640 octave_idx_type, oct_mach_info::float_format); |
| 3641 | |
| 3642 template octave_idx_type | |
| 3643 octave_stream::write (const Array<octave_int64>&, octave_idx_type, | |
| 4944 | 3644 oct_data_conv::data_type, |
| 5275 | 3645 octave_idx_type, oct_mach_info::float_format); |
| 3646 | |
| 3647 template octave_idx_type | |
| 3648 octave_stream::write (const Array<octave_uint64>&, octave_idx_type, | |
| 4944 | 3649 oct_data_conv::data_type, |
| 5275 | 3650 octave_idx_type, oct_mach_info::float_format); |
| 4944 | 3651 |
| 2117 | 3652 octave_value |
| 3810 | 3653 octave_stream::scanf (const std::string& fmt, const Array<double>& size, |
| 5275 | 3654 octave_idx_type& count, const std::string& who) |
| 2117 | 3655 { |
| 3656 octave_value retval; | |
| 3657 | |
| 5659 | 3658 if (stream_ok ()) |
| 4468 | 3659 retval = rep->scanf (fmt, size, count, who); |
| 2117 | 3660 |
| 3661 return retval; | |
| 3662 } | |
| 3663 | |
| 5279 | 3664 octave_value |
| 3665 octave_stream::scanf (const octave_value& fmt, const Array<double>& size, | |
| 5299 | 3666 octave_idx_type& count, const std::string& who) |
| 5279 | 3667 { |
| 3668 octave_value retval = Matrix (); | |
| 3669 | |
| 3670 if (fmt.is_string ()) | |
| 3671 { | |
| 3672 std::string sfmt = fmt.string_value (); | |
| 3673 | |
| 3674 if (fmt.is_sq_string ()) | |
| 3675 sfmt = do_string_escapes (sfmt); | |
| 3676 | |
| 3677 retval = scanf (sfmt, size, count, who); | |
| 3678 } | |
| 3679 else | |
| 3680 { | |
| 3681 // Note that this is not ::error () ! | |
| 3682 | |
| 3683 error (who + ": format must be a string"); | |
| 3684 } | |
| 3685 | |
| 3686 return retval; | |
| 3687 } | |
| 3688 | |
| 2215 | 3689 octave_value_list |
| 4468 | 3690 octave_stream::oscanf (const std::string& fmt, const std::string& who) |
| 2215 | 3691 { |
| 3692 octave_value_list retval; | |
| 3693 | |
| 5659 | 3694 if (stream_ok ()) |
| 4468 | 3695 retval = rep->oscanf (fmt, who); |
| 2215 | 3696 |
| 3697 return retval; | |
| 3698 } | |
| 3699 | |
| 5279 | 3700 octave_value_list |
| 3701 octave_stream::oscanf (const octave_value& fmt, const std::string& who) | |
| 3702 { | |
| 3703 octave_value_list retval; | |
| 3704 | |
| 3705 if (fmt.is_string ()) | |
| 3706 { | |
| 3707 std::string sfmt = fmt.string_value (); | |
| 3708 | |
| 3709 if (fmt.is_sq_string ()) | |
| 3710 sfmt = do_string_escapes (sfmt); | |
| 3711 | |
| 3712 retval = oscanf (sfmt, who); | |
| 3713 } | |
| 3714 else | |
| 3715 { | |
| 3716 // Note that this is not ::error () ! | |
| 3717 | |
| 3718 error (who + ": format must be a string"); | |
| 3719 } | |
| 3720 | |
| 3721 return retval; | |
| 3722 } | |
| 3723 | |
| 2117 | 3724 int |
| 4468 | 3725 octave_stream::printf (const std::string& fmt, const octave_value_list& args, |
| 3726 const std::string& who) | |
| 2117 | 3727 { |
| 3728 int retval = -1; | |
| 3729 | |
| 5659 | 3730 if (stream_ok ()) |
| 4468 | 3731 retval = rep->printf (fmt, args, who); |
| 2117 | 3732 |
| 3733 return retval; | |
| 3734 } | |
| 3735 | |
| 3736 int | |
| 5279 | 3737 octave_stream::printf (const octave_value& fmt, const octave_value_list& args, |
| 3738 const std::string& who) | |
| 3739 { | |
| 3740 int retval = 0; | |
| 3741 | |
| 3742 if (fmt.is_string ()) | |
| 3743 { | |
| 3744 std::string sfmt = fmt.string_value (); | |
| 3745 | |
| 3746 if (fmt.is_sq_string ()) | |
| 3747 sfmt = do_string_escapes (sfmt); | |
| 3748 | |
| 3749 retval = printf (sfmt, args, who); | |
| 3750 } | |
| 3751 else | |
| 3752 { | |
| 3753 // Note that this is not ::error () ! | |
| 3754 | |
| 3755 error (who + ": format must be a string"); | |
| 3756 } | |
| 3757 | |
| 3758 return retval; | |
| 3759 } | |
| 3760 | |
| 3761 int | |
| 4468 | 3762 octave_stream::puts (const std::string& s, const std::string& who) |
| 2117 | 3763 { |
| 3764 int retval = -1; | |
| 3765 | |
| 5659 | 3766 if (stream_ok ()) |
| 4468 | 3767 retval = rep->puts (s, who); |
| 2117 | 3768 |
| 3769 return retval; | |
| 3770 } | |
| 3771 | |
| 5775 | 3772 // FIXME -- maybe this should work for string arrays too. |
| 2117 | 3773 |
| 3774 int | |
| 4468 | 3775 octave_stream::puts (const octave_value& tc_s, const std::string& who) |
| 2117 | 3776 { |
| 3777 int retval = -1; | |
| 3778 | |
| 3779 if (tc_s.is_string ()) | |
| 3780 { | |
| 3523 | 3781 std::string s = tc_s.string_value (); |
| 5279 | 3782 retval = puts (s, who); |
| 2117 | 3783 } |
| 3784 else | |
| 4468 | 3785 { |
| 3786 // Note that this is not ::error () ! | |
| 3787 | |
| 3788 error (who + ": argument must be a string"); | |
| 3789 } | |
| 2117 | 3790 |
| 3791 return retval; | |
| 3792 } | |
| 3793 | |
| 3794 bool | |
| 3795 octave_stream::eof (void) const | |
| 3796 { | |
| 3797 int retval = -1; | |
| 3798 | |
| 5659 | 3799 if (stream_ok ()) |
| 2117 | 3800 retval = rep->eof (); |
| 3801 | |
| 3802 return retval; | |
| 3803 } | |
| 3804 | |
| 3536 | 3805 std::string |
| 2435 | 3806 octave_stream::error (bool clear, int& err_num) |
| 2117 | 3807 { |
| 5649 | 3808 std::string retval = "invalid stream object"; |
| 3809 | |
| 5659 | 3810 if (stream_ok (false)) |
| 2435 | 3811 retval = rep->error (clear, err_num); |
| 2117 | 3812 |
| 3813 return retval; | |
| 3814 } | |
| 3815 | |
| 3536 | 3816 std::string |
| 3340 | 3817 octave_stream::name (void) const |
| 2117 | 3818 { |
| 3523 | 3819 std::string retval; |
| 2117 | 3820 |
| 5659 | 3821 if (stream_ok ()) |
| 2117 | 3822 retval = rep->name (); |
| 3823 | |
| 3824 return retval; | |
| 3825 } | |
| 3826 | |
| 3827 int | |
| 3340 | 3828 octave_stream::mode (void) const |
| 2117 | 3829 { |
| 3830 int retval = 0; | |
| 3831 | |
| 5659 | 3832 if (stream_ok ()) |
| 2117 | 3833 retval = rep->mode (); |
| 3834 | |
| 3835 return retval; | |
| 3836 } | |
| 3837 | |
| 2317 | 3838 oct_mach_info::float_format |
| 3340 | 3839 octave_stream::float_format (void) const |
| 2117 | 3840 { |
| 4574 | 3841 oct_mach_info::float_format retval = oct_mach_info::flt_fmt_unknown; |
| 2317 | 3842 |
| 5659 | 3843 if (stream_ok ()) |
| 2317 | 3844 retval = rep->float_format (); |
| 2117 | 3845 |
| 3846 return retval; | |
| 3847 } | |
| 3848 | |
| 3536 | 3849 std::string |
| 2117 | 3850 octave_stream::mode_as_string (int mode) |
| 3851 { | |
| 3523 | 3852 std::string retval = "???"; |
| 3775 | 3853 std::ios::openmode in_mode = static_cast<std::ios::openmode> (mode); |
| 3854 | |
| 3855 if (in_mode == std::ios::in) | |
| 3856 retval = "r"; | |
| 3857 else if (in_mode == std::ios::out | |
| 4078 | 3858 || in_mode == (std::ios::out | std::ios::trunc)) |
| 3775 | 3859 retval = "w"; |
| 4078 | 3860 else if (in_mode == (std::ios::out | std::ios::app)) |
| 3775 | 3861 retval = "a"; |
| 4078 | 3862 else if (in_mode == (std::ios::in | std::ios::out)) |
| 3775 | 3863 retval = "r+"; |
| 4078 | 3864 else if (in_mode == (std::ios::in | std::ios::out | std::ios::trunc)) |
| 3775 | 3865 retval = "w+"; |
| 4078 | 3866 else if (in_mode == (std::ios::in | std::ios::out | std::ios::ate)) |
| 3775 | 3867 retval = "a+"; |
| 4078 | 3868 else if (in_mode == (std::ios::in | std::ios::binary)) |
| 3775 | 3869 retval = "rb"; |
| 4078 | 3870 else if (in_mode == (std::ios::out | std::ios::binary) |
| 3871 || in_mode == (std::ios::out | std::ios::trunc | std::ios::binary)) | |
| 3775 | 3872 retval = "wb"; |
| 4078 | 3873 else if (in_mode == (std::ios::out | std::ios::app | std::ios::binary)) |
| 3775 | 3874 retval = "ab"; |
| 4078 | 3875 else if (in_mode == (std::ios::in | std::ios::out | std::ios::binary)) |
| 3775 | 3876 retval = "r+b"; |
| 4078 | 3877 else if (in_mode == (std::ios::in | std::ios::out | std::ios::trunc |
| 3878 | std::ios::binary)) | |
| 3775 | 3879 retval = "w+b"; |
| 4078 | 3880 else if (in_mode == (std::ios::in | std::ios::out | std::ios::ate |
| 3881 | std::ios::binary)) | |
| 3775 | 3882 retval = "a+b"; |
| 2117 | 3883 |
| 3884 return retval; | |
| 3885 } | |
| 3886 | |
| 3887 octave_stream_list *octave_stream_list::instance = 0; | |
| 3888 | |
| 2926 | 3889 bool |
| 3890 octave_stream_list::instance_ok (void) | |
| 3891 { | |
| 3892 bool retval = true; | |
| 3893 | |
| 3894 if (! instance) | |
| 3895 instance = new octave_stream_list (); | |
| 3896 | |
| 3897 if (! instance) | |
| 3898 { | |
| 3899 ::error ("unable to create stream list object!"); | |
| 3900 | |
| 3901 retval = false; | |
| 3902 } | |
| 3903 | |
| 3904 return retval; | |
| 3905 } | |
| 3906 | |
| 5353 | 3907 int |
| 6757 | 3908 octave_stream_list::insert (octave_stream& os) |
| 2926 | 3909 { |
| 5353 | 3910 return (instance_ok ()) ? instance->do_insert (os) : -1; |
| 2926 | 3911 } |
| 3912 | |
| 3340 | 3913 octave_stream |
| 3523 | 3914 octave_stream_list::lookup (int fid, const std::string& who) |
| 2926 | 3915 { |
| 3341 | 3916 return (instance_ok ()) ? instance->do_lookup (fid, who) : octave_stream (); |
| 2926 | 3917 } |
| 3918 | |
| 3340 | 3919 octave_stream |
| 3523 | 3920 octave_stream_list::lookup (const octave_value& fid, const std::string& who) |
| 2926 | 3921 { |
| 3341 | 3922 return (instance_ok ()) ? instance->do_lookup (fid, who) : octave_stream (); |
| 2926 | 3923 } |
| 3924 | |
| 3925 int | |
| 3523 | 3926 octave_stream_list::remove (int fid, const std::string& who) |
| 2926 | 3927 { |
| 3341 | 3928 return (instance_ok ()) ? instance->do_remove (fid, who) : -1; |
| 2926 | 3929 } |
| 3930 | |
| 3931 int | |
| 3523 | 3932 octave_stream_list::remove (const octave_value& fid, const std::string& who) |
| 2926 | 3933 { |
| 3341 | 3934 return (instance_ok ()) ? instance->do_remove (fid, who) : -1; |
| 2926 | 3935 } |
| 3936 | |
| 3937 void | |
| 3938 octave_stream_list::clear (void) | |
| 3939 { | |
| 3940 if (instance) | |
| 3941 instance->do_clear (); | |
| 3942 } | |
| 3943 | |
| 3944 string_vector | |
| 3945 octave_stream_list::get_info (int fid) | |
| 3946 { | |
| 3947 return (instance_ok ()) ? instance->do_get_info (fid) : string_vector (); | |
| 3948 } | |
| 3949 | |
| 3950 string_vector | |
| 3951 octave_stream_list::get_info (const octave_value& fid) | |
| 3952 { | |
| 3953 return (instance_ok ()) ? instance->do_get_info (fid) : string_vector (); | |
| 3954 } | |
| 3955 | |
| 3536 | 3956 std::string |
| 2926 | 3957 octave_stream_list::list_open_files (void) |
| 3958 { | |
| 3523 | 3959 return (instance_ok ()) ? instance->do_list_open_files () : std::string (); |
| 2926 | 3960 } |
| 3961 | |
| 3962 octave_value | |
| 3963 octave_stream_list::open_file_numbers (void) | |
| 3964 { | |
| 3965 return (instance_ok ()) | |
| 3966 ? instance->do_open_file_numbers () : octave_value (); | |
| 3967 } | |
| 3968 | |
| 3969 int | |
| 3970 octave_stream_list::get_file_number (const octave_value& fid) | |
| 3971 { | |
| 3972 return (instance_ok ()) ? instance->do_get_file_number (fid) : -1; | |
| 3973 } | |
| 3974 | |
| 5353 | 3975 int |
| 6757 | 3976 octave_stream_list::do_insert (octave_stream& os) |
| 2117 | 3977 { |
| 6757 | 3978 // Insert item with key corresponding to file-descriptor. |
| 3979 | |
| 3980 int stream_number; | |
| 3981 | |
| 3982 if ((stream_number = os.file_number ()) == -1) | |
| 3983 return stream_number; | |
| 3984 | |
| 3985 // Should we test for "(list.find (stream_number) != list.end ()) && | |
| 3986 // list[stream_number].is_open ()" and respond with "error | |
| 3987 // ("internal error: ...")"? It should not happen except for some | |
| 3988 // bug or if the user has opened a stream with an interpreted | |
| 3989 // command, but closed it directly with a system call in an | |
| 3990 // oct-file; then the kernel knows the fd is free, but Octave does | |
| 3991 // not know. If it happens, it should not do harm here to simply | |
| 3992 // overwrite this entry, although the wrong entry might have done | |
| 3993 // harm before. | |
| 3994 | |
| 3995 if (list.size () < list.max_size ()) | |
| 3996 list[stream_number] = os; | |
| 3997 else | |
| 2117 | 3998 { |
| 6757 | 3999 stream_number = -1; |
| 4000 error ("could not create file id"); | |
| 3340 | 4001 } |
| 2117 | 4002 |
| 5353 | 4003 return stream_number; |
| 6757 | 4004 |
| 2117 | 4005 } |
| 4006 | |
| 3341 | 4007 static void |
| 3523 | 4008 gripe_invalid_file_id (int fid, const std::string& who) |
| 3341 | 4009 { |
| 4010 if (who.empty ()) | |
| 4011 ::error ("invalid stream number = %d", fid); | |
| 4012 else | |
| 4013 ::error ("%s: invalid stream number = %d", who.c_str (), fid); | |
| 4014 } | |
| 4015 | |
| 3340 | 4016 octave_stream |
| 3523 | 4017 octave_stream_list::do_lookup (int fid, const std::string& who) const |
| 2117 | 4018 { |
| 3340 | 4019 octave_stream retval; |
| 2117 | 4020 |
| 6757 | 4021 if (fid >= 0) |
| 4022 { | |
| 4023 ostrl_map::const_iterator iter = list.find (fid); | |
| 4024 | |
| 4025 if (iter != list.end ()) | |
| 4026 retval = iter->second; | |
| 4027 else | |
| 4028 gripe_invalid_file_id (fid, who); | |
| 4029 } | |
| 3341 | 4030 else |
| 4031 gripe_invalid_file_id (fid, who); | |
| 2117 | 4032 |
| 4033 return retval; | |
| 4034 } | |
| 4035 | |
| 3340 | 4036 octave_stream |
| 3341 | 4037 octave_stream_list::do_lookup (const octave_value& fid, |
| 3523 | 4038 const std::string& who) const |
| 2117 | 4039 { |
| 3340 | 4040 octave_stream retval; |
| 2117 | 4041 |
| 4042 int i = get_file_number (fid); | |
| 4043 | |
| 4044 if (! error_state) | |
| 3341 | 4045 retval = do_lookup (i, who); |
| 2117 | 4046 |
| 4047 return retval; | |
| 4048 } | |
| 4049 | |
| 4050 int | |
| 3523 | 4051 octave_stream_list::do_remove (int fid, const std::string& who) |
| 2117 | 4052 { |
| 4053 int retval = -1; | |
| 4054 | |
| 3531 | 4055 // Can't remove stdin (std::cin), stdout (std::cout), or stderr |
| 4056 // (std::cerr). | |
| 2117 | 4057 |
| 6757 | 4058 if (fid > 2) |
| 2117 | 4059 { |
| 6757 | 4060 ostrl_map::iterator iter = list.find (fid); |
| 4061 | |
| 4062 if (iter != list.end ()) | |
| 2117 | 4063 { |
| 6757 | 4064 octave_stream os = iter->second; |
| 4065 | |
| 4066 if (os.is_valid ()) | |
| 4067 { | |
| 4068 os.close (); | |
| 4069 iter->second = octave_stream (); | |
| 4070 retval = 0; | |
| 4071 } | |
| 4072 else | |
| 4073 gripe_invalid_file_id (fid, who); | |
| 2117 | 4074 } |
| 3341 | 4075 else |
| 4076 gripe_invalid_file_id (fid, who); | |
| 2117 | 4077 } |
| 3341 | 4078 else |
| 4079 gripe_invalid_file_id (fid, who); | |
| 2117 | 4080 |
| 4081 return retval; | |
| 4082 } | |
| 4083 | |
| 4084 int | |
| 3523 | 4085 octave_stream_list::do_remove (const octave_value& fid, const std::string& who) |
| 2117 | 4086 { |
| 4087 int retval = -1; | |
| 4088 | |
| 6054 | 4089 if (fid.is_string () && fid.string_value () == "all") |
| 4090 { | |
| 6757 | 4091 for (ostrl_map::iterator p = list.begin (); p != list.end (); p++) |
| 6054 | 4092 { |
| 6757 | 4093 // Skip stdin, stdout, and stderr. |
| 4094 | |
| 4095 if (p->first > 2) | |
| 4096 { | |
| 4097 octave_stream os = p->second; | |
| 4098 | |
| 4099 if (os.is_valid ()) | |
| 4100 do_remove (p->first, who); | |
| 4101 } | |
| 6054 | 4102 } |
| 4103 | |
| 4104 retval = 0; | |
| 4105 } | |
| 4106 else | |
| 4107 { | |
| 4108 int i = get_file_number (fid); | |
| 4109 | |
| 4110 if (! error_state) | |
| 4111 retval = do_remove (i, who); | |
| 4112 } | |
| 2117 | 4113 |
| 4114 return retval; | |
| 4115 } | |
| 4116 | |
| 4117 void | |
| 4118 octave_stream_list::do_clear (void) | |
| 4119 { | |
| 4120 // Do flush stdout and stderr. | |
| 4121 | |
| 6757 | 4122 list[0].flush (); |
| 4123 list[1].flush (); | |
| 2117 | 4124 |
| 4125 // But don't delete them or stdin. | |
| 4126 | |
| 6757 | 4127 for (ostrl_map::iterator p = list.begin (); p != list.end (); p++) |
| 4128 { | |
| 4129 // Skip stdin, stdout, and stderr. | |
| 4130 | |
| 4131 if (p->first > 2) | |
| 4132 p->second = octave_stream (); | |
| 4133 } | |
| 2117 | 4134 } |
| 4135 | |
| 4136 string_vector | |
| 4137 octave_stream_list::do_get_info (int fid) const | |
| 4138 { | |
| 4139 string_vector retval; | |
| 4140 | |
| 3340 | 4141 octave_stream os = do_lookup (fid); |
| 2117 | 4142 |
| 3341 | 4143 if (os.is_valid ()) |
| 2117 | 4144 { |
| 4145 retval.resize (3); | |
| 4146 | |
| 3340 | 4147 retval(0) = os.name (); |
| 4148 retval(1) = octave_stream::mode_as_string (os.mode ()); | |
| 4149 retval(2) = oct_mach_info::float_format_as_string (os.float_format ()); | |
| 2117 | 4150 } |
| 4151 else | |
| 3341 | 4152 ::error ("invalid file id = %d", fid); |
| 2117 | 4153 |
| 4154 return retval; | |
| 4155 } | |
| 4156 | |
| 4157 string_vector | |
| 4158 octave_stream_list::do_get_info (const octave_value& fid) const | |
| 4159 { | |
| 4160 string_vector retval; | |
| 4161 | |
| 4162 int conv_err = 0; | |
| 4163 | |
| 4164 int int_fid = convert_to_valid_int (fid, conv_err); | |
| 4165 | |
| 4166 if (! conv_err) | |
| 4167 retval = do_get_info (int_fid); | |
| 4168 else | |
| 2915 | 4169 ::error ("file id must be a file object or integer value"); |
| 2117 | 4170 |
| 4171 return retval; | |
| 4172 } | |
| 4173 | |
| 3536 | 4174 std::string |
| 2117 | 4175 octave_stream_list::do_list_open_files (void) const |
| 4176 { | |
| 3523 | 4177 std::string retval; |
| 2117 | 4178 |
| 5765 | 4179 std::ostringstream buf; |
| 2117 | 4180 |
| 4181 buf << "\n" | |
| 4182 << " number mode arch name\n" | |
| 4183 << " ------ ---- ---- ----\n"; | |
| 4184 | |
| 6757 | 4185 for (ostrl_map::const_iterator p = list.begin (); p != list.end (); p++) |
| 2117 | 4186 { |
| 6757 | 4187 octave_stream os = p->second; |
| 2117 | 4188 |
| 4326 | 4189 buf << " " |
| 4190 << std::setiosflags (std::ios::right) | |
| 6757 | 4191 << std::setw (4) << p->first << " " |
| 4326 | 4192 << std::setiosflags (std::ios::left) |
| 4193 << std::setw (3) | |
| 4194 << octave_stream::mode_as_string (os.mode ()) | |
| 4195 << " " | |
| 4196 << std::setw (9) | |
| 4197 << oct_mach_info::float_format_as_string (os.float_format ()) | |
| 4198 << " " | |
| 4199 << os.name () << "\n"; | |
| 2117 | 4200 } |
| 4201 | |
| 5765 | 4202 buf << "\n"; |
| 4203 | |
| 4204 retval = buf.str (); | |
| 2117 | 4205 |
| 4206 return retval; | |
| 4207 } | |
| 4208 | |
| 4209 octave_value | |
| 4210 octave_stream_list::do_open_file_numbers (void) const | |
| 4211 { | |
| 6757 | 4212 Matrix retval (1, list.size (), 0.0); |
| 2117 | 4213 |
| 4214 int num_open = 0; | |
| 4215 | |
| 6757 | 4216 for (ostrl_map::const_iterator p = list.begin (); p != list.end (); p++) |
| 2117 | 4217 { |
| 6757 | 4218 // Skip stdin, stdout, and stderr. |
| 4219 | |
| 4220 if (p->first > 2 && p->second) | |
| 4221 retval(0,num_open++) = p->first; | |
| 2117 | 4222 } |
| 4223 | |
| 4224 retval.resize ((num_open > 0), num_open); | |
| 4225 | |
| 4226 return retval; | |
| 4227 } | |
| 4228 | |
| 4229 int | |
| 2609 | 4230 octave_stream_list::do_get_file_number (const octave_value& fid) const |
| 2117 | 4231 { |
| 4232 int retval = -1; | |
| 4233 | |
| 4234 if (fid.is_string ()) | |
| 4235 { | |
| 3523 | 4236 std::string nm = fid.string_value (); |
| 2117 | 4237 |
| 6757 | 4238 for (ostrl_map::const_iterator p = list.begin (); p != list.end (); p++) |
| 2117 | 4239 { |
| 6757 | 4240 // stdin (std::cin), stdout (std::cout), and stderr (std::cerr) |
| 4241 // are unnamed. | |
| 4242 | |
| 4243 if (p->first > 2) | |
| 2117 | 4244 { |
| 6757 | 4245 octave_stream os = p->second; |
| 4246 | |
| 4247 if (os && os.name () == nm) | |
| 4248 { | |
| 4249 retval = p->first; | |
| 4250 break; | |
| 4251 } | |
| 2117 | 4252 } |
| 4253 } | |
| 4254 } | |
| 4255 else | |
| 4256 { | |
| 4257 int conv_err = 0; | |
| 4258 | |
| 4259 int int_fid = convert_to_valid_int (fid, conv_err); | |
| 4260 | |
| 4261 if (conv_err) | |
| 3523 | 4262 ::error ("file id must be a file object, std::string, or integer value"); |
| 2117 | 4263 else |
| 4264 retval = int_fid; | |
| 4265 } | |
| 4266 | |
| 4267 return retval; | |
| 4268 } | |
| 4269 | |
| 4270 /* | |
| 4271 ;;; Local Variables: *** | |
| 4272 ;;; mode: C++ *** | |
| 4273 ;;; End: *** | |
| 4274 */ |