Mercurial > hg > octave-nkf
annotate src/oct-stream.cc @ 8771:d3382daaf4d2
Use CARBON_LIBS instead of LIBS for framework Carbon.
| author | Thomas Treichl <Thomas.Treichl@gmx.net> |
|---|---|
| date | Tue, 17 Feb 2009 00:28:48 -0500 |
| parents | d477e57e811c |
| children | 9e3111d203c0 |
| 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 | |
|
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986 // Handle CRLF, CR, or LF as line ending. |
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987 |
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988 if (c == '\r') |
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989 { |
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990 if (! strip_newline) |
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991 buf << static_cast<char> (c); |
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992 |
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993 c = is.get (); |
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994 |
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995 if (c != EOF) |
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996 { |
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997 if (c == '\n') |
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998 { |
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999 char_count++; |
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1000 |
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1001 if (! strip_newline) |
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1002 buf << static_cast<char> (c); |
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1003 } |
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1004 else |
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1005 is.putback (c); |
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1006 } |
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1007 |
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1008 break; |
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1009 } |
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1010 else if (c == '\n') |
| 6345 | 1011 { |
| 1012 if (! strip_newline) | |
| 1013 buf << static_cast<char> (c); | |
| 1014 | |
| 1015 break; | |
| 1016 } | |
| 1017 else | |
| 5760 | 1018 buf << static_cast<char> (c); |
| 6345 | 1019 |
| 1020 if (max_len > 0 && char_count == max_len) | |
| 1021 break; | |
| 2117 | 1022 } |
| 6345 | 1023 } |
| 1024 | |
| 1025 if (! is.eof () && char_count > 0) | |
| 1026 { | |
| 1027 // GAGME. Matlab seems to check for EOF even if the last | |
| 1028 // character in a file is a newline character. This is NOT | |
| 1029 // what the corresponding C-library functions do. | |
| 1030 int disgusting_compatibility_hack = is.get (); | |
| 1031 if (! is.eof ()) | |
| 1032 is.putback (disgusting_compatibility_hack); | |
| 2117 | 1033 } |
| 1034 | |
| 4224 | 1035 if (is.good () || (is.eof () && char_count > 0)) |
| 5765 | 1036 retval = buf.str (); |
| 4224 | 1037 else |
| 1038 { | |
| 1039 err = true; | |
| 4468 | 1040 |
| 4224 | 1041 if (is.eof () && char_count == 0) |
| 4468 | 1042 error (who, "at end of file"); |
| 4224 | 1043 else |
| 4468 | 1044 error (who, "read error"); |
| 4224 | 1045 } |
| 2117 | 1046 } |
| 1047 else | |
| 1048 { | |
| 1049 err = true; | |
| 4468 | 1050 invalid_operation (who, "reading"); |
| 2117 | 1051 } |
| 1052 | |
| 1053 return retval; | |
| 1054 } | |
| 1055 | |
| 3536 | 1056 std::string |
| 5275 | 1057 octave_base_stream::getl (octave_idx_type max_len, bool& err, const std::string& who) |
| 2117 | 1058 { |
| 4468 | 1059 return do_gets (max_len, err, true, who); |
| 2117 | 1060 } |
| 1061 | |
| 3536 | 1062 std::string |
| 5275 | 1063 octave_base_stream::gets (octave_idx_type max_len, bool& err, const std::string& who) |
| 2117 | 1064 { |
| 4468 | 1065 return do_gets (max_len, err, false, who); |
| 2117 | 1066 } |
| 1067 | |
| 3640 | 1068 #define OCTAVE_SCAN(is, fmt, arg) octave_scan (is, fmt, arg) |
| 3636 | 1069 |
| 1070 template <class T> | |
| 1071 std::istream& | |
| 6767 | 1072 octave_scan_1 (std::istream& is, const scanf_format_elt& fmt, T* valptr) |
| 3636 | 1073 { |
| 3779 | 1074 T& ref = *valptr; |
| 1075 | |
| 1076 switch (fmt.type) | |
| 1077 { | |
| 1078 case 'o': | |
| 4926 | 1079 is >> std::oct >> ref >> std::dec; |
| 3779 | 1080 break; |
| 1081 | |
| 1082 case 'x': | |
| 4926 | 1083 is >> std::hex >> ref >> std::dec; |
| 1084 break; | |
| 1085 | |
| 1086 case 'i': | |
| 1087 { | |
| 1088 int c1 = is.get (); | |
| 1089 | |
| 1090 if (! is.eof ()) | |
| 1091 { | |
| 1092 if (c1 == '0') | |
| 1093 { | |
|
7709
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|
1094 int c2 = is.peek (); |
| 4926 | 1095 |
| 1096 if (c2 == 'x' || c2 == 'X') | |
|
7709
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|
1097 { |
|
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|
1098 is.ignore (); |
|
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|
1099 if (std::isxdigit (is.peek ())) |
|
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|
1100 is >> std::hex >> ref >> std::dec; |
|
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|
1101 else |
|
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1102 ref = 0; |
|
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|
1103 } |
| 4926 | 1104 else |
| 4927 | 1105 { |
| 1106 if (c2 == '0' || c2 == '1' || c2 == '2' | |
| 1107 || c2 == '3' || c2 == '4' || c2 == '5' | |
| 1108 || c2 == '6' || c2 == '7') | |
| 1109 is >> std::oct >> ref >> std::dec; | |
| 1110 else | |
| 1111 ref = 0; | |
| 1112 } | |
| 4926 | 1113 } |
| 1114 else | |
| 1115 { | |
| 1116 is.putback (c1); | |
| 1117 | |
| 1118 is >> ref; | |
| 1119 } | |
| 1120 } | |
| 1121 } | |
| 3779 | 1122 break; |
| 1123 | |
| 1124 default: | |
| 1125 is >> ref; | |
| 1126 break; | |
| 1127 } | |
| 3639 | 1128 |
| 3638 | 1129 return is; |
| 3636 | 1130 } |
| 1131 | |
| 6767 | 1132 template <class T> |
| 1133 std::istream& | |
| 1134 octave_scan (std::istream& is, const scanf_format_elt& fmt, T* valptr) | |
| 1135 { | |
| 1136 if (fmt.width) | |
| 1137 { | |
| 1138 // Limit input to fmt.width characters by reading into a | |
| 1139 // temporary stringstream buffer. | |
| 1140 | |
| 1141 std::string tmp; | |
| 1142 | |
| 1143 is.width (fmt.width); | |
| 1144 is >> tmp; | |
| 1145 | |
| 1146 std::istringstream ss (tmp); | |
| 1147 | |
| 1148 octave_scan_1 (ss, fmt, valptr); | |
| 1149 } | |
| 1150 else | |
| 1151 octave_scan_1 (is, fmt, valptr); | |
| 1152 | |
| 1153 return is; | |
| 1154 } | |
| 1155 | |
| 3779 | 1156 // Note that this specialization is only used for reading characters, not |
| 1157 // character strings. See BEGIN_S_CONVERSION for details. | |
| 1158 | |
| 1159 template<> | |
| 1160 std::istream& | |
| 4661 | 1161 octave_scan<> (std::istream& is, const scanf_format_elt& /* fmt */, |
| 1162 char* valptr) | |
| 3779 | 1163 { |
| 1164 return is >> valptr; | |
| 1165 } | |
| 3636 | 1166 |
| 4595 | 1167 template std::istream& |
| 1168 octave_scan (std::istream&, const scanf_format_elt&, int*); | |
| 1169 | |
| 1170 template std::istream& | |
| 1171 octave_scan (std::istream&, const scanf_format_elt&, long int*); | |
| 1172 | |
| 1173 template std::istream& | |
| 1174 octave_scan (std::istream&, const scanf_format_elt&, short int*); | |
| 1175 | |
| 1176 template std::istream& | |
| 1177 octave_scan (std::istream&, const scanf_format_elt&, unsigned int*); | |
| 1178 | |
| 1179 template std::istream& | |
| 1180 octave_scan (std::istream&, const scanf_format_elt&, unsigned long int*); | |
| 1181 | |
| 1182 template std::istream& | |
| 1183 octave_scan (std::istream&, const scanf_format_elt&, unsigned short int*); | |
| 1184 | |
| 1185 #if 0 | |
| 1186 template std::istream& | |
| 1187 octave_scan (std::istream&, const scanf_format_elt&, float*); | |
| 1188 #endif | |
| 1189 | |
| 5403 | 1190 template<> |
| 5176 | 1191 std::istream& |
| 5403 | 1192 octave_scan<> (std::istream& is, const scanf_format_elt& fmt, double* valptr) |
| 5176 | 1193 { |
| 1194 double& ref = *valptr; | |
| 1195 | |
| 1196 switch (fmt.type) | |
| 1197 { | |
| 1198 case 'e': | |
| 1199 case 'f': | |
| 1200 case 'g': | |
| 1201 { | |
| 5259 | 1202 int c1 = EOF; |
| 5176 | 1203 |
| 1204 while (is && (c1 = is.get ()) != EOF && isspace (c1)) | |
| 1205 /* skip whitespace */; | |
| 1206 | |
| 1207 if (c1 != EOF) | |
| 1208 { | |
| 1209 if (c1 == 'N') | |
| 1210 { | |
| 1211 int c2 = is.get (); | |
| 1212 | |
| 1213 if (c2 != EOF) | |
| 1214 { | |
| 1215 if (c2 == 'A') | |
| 1216 { | |
| 1217 int c3 = is.get (); | |
| 1218 | |
| 1219 if (c3 != EOF) | |
| 1220 { | |
| 1221 is.putback (c3); | |
| 1222 | |
| 1223 if (isspace (c3) || ispunct (c3)) | |
| 1224 ref = octave_NA; | |
| 1225 else | |
| 1226 { | |
| 1227 is.putback (c2); | |
| 1228 is.putback (c1); | |
| 1229 | |
| 1230 is >> ref; | |
| 1231 } | |
| 1232 } | |
| 1233 else | |
| 1234 { | |
| 1235 is.clear (); | |
| 1236 | |
| 1237 ref = octave_NA; | |
| 1238 } | |
| 1239 } | |
| 1240 else if (c2 == 'a') | |
| 1241 { | |
| 1242 int c3 = is.get (); | |
| 1243 | |
| 1244 if (c3 != EOF) | |
| 1245 { | |
| 1246 if (c3 == 'N') | |
| 1247 { | |
| 1248 int c4 = is.get (); | |
| 1249 | |
| 1250 if (c4 != EOF) | |
| 1251 { | |
| 1252 is.putback (c4); | |
| 1253 | |
| 1254 if (isspace (c4) || ispunct (c4)) | |
| 1255 ref = octave_NaN; | |
| 1256 else | |
| 1257 { | |
| 1258 is.putback (c3); | |
| 1259 is.putback (c2); | |
| 1260 is.putback (c1); | |
| 1261 | |
| 1262 is >> ref; | |
| 1263 } | |
| 1264 } | |
| 1265 else | |
| 1266 { | |
| 1267 is.clear (); | |
| 1268 | |
| 1269 ref = octave_NaN; | |
| 1270 } | |
| 1271 } | |
| 1272 else | |
| 1273 { | |
| 1274 is.putback (c3); | |
| 1275 is.putback (c2); | |
| 1276 is.putback (c1); | |
| 1277 | |
| 1278 is >> ref; | |
| 1279 } | |
| 1280 } | |
| 1281 } | |
| 1282 else | |
| 1283 { | |
| 1284 is.putback (c2); | |
| 1285 is.putback (c1); | |
| 1286 | |
| 1287 is >> ref; | |
| 1288 } | |
| 1289 } | |
| 1290 } | |
| 1291 else if (c1 == 'I') | |
| 1292 { | |
| 1293 int c2 = is.get (); | |
| 1294 | |
| 1295 if (c2 != EOF) | |
| 1296 { | |
| 1297 if (c2 == 'n') | |
| 1298 { | |
| 1299 int c3 = is.get (); | |
| 1300 | |
| 1301 if (c3 != EOF) | |
| 6483 | 1302 { |
| 1303 if (c3 == 'f') | |
| 1304 { | |
| 1305 int c4 = is.get (); | |
| 1306 | |
| 1307 if (c4 != EOF) | |
| 1308 { | |
| 1309 is.putback (c4); | |
| 1310 | |
| 1311 if (isspace (c4) || ispunct (c4)) | |
| 1312 ref = octave_Inf; | |
| 1313 else | |
| 1314 { | |
| 1315 is.putback (c3); | |
| 1316 is.putback (c2); | |
| 1317 is.putback (c1); | |
| 1318 | |
| 1319 is >> ref; | |
| 1320 } | |
| 1321 } | |
| 1322 else | |
| 1323 { | |
| 1324 is.clear (); | |
| 1325 | |
| 5176 | 1326 ref = octave_Inf; |
| 6483 | 1327 } |
| 1328 } | |
| 1329 else | |
| 1330 { | |
| 1331 is.putback (c3); | |
| 1332 is.putback (c2); | |
| 1333 is.putback (c1); | |
| 1334 | |
| 1335 is >> ref; | |
| 1336 } | |
| 1337 } | |
| 1338 else | |
| 1339 { | |
| 1340 is.putback (c2); | |
| 1341 is.putback (c1); | |
| 1342 | |
| 1343 is >> ref; | |
| 1344 } | |
| 5176 | 1345 } |
| 1346 } | |
| 1347 } | |
| 1348 else | |
| 1349 { | |
| 1350 is.putback (c1); | |
| 1351 | |
| 1352 is >> ref; | |
| 1353 } | |
| 1354 } | |
| 1355 } | |
| 1356 break; | |
| 1357 | |
| 1358 default: | |
| 1359 panic_impossible (); | |
| 1360 break; | |
| 1361 } | |
| 1362 | |
| 1363 return is; | |
| 1364 } | |
| 1365 | |
| 2572 | 1366 template <class T> |
| 1367 void | |
| 3636 | 1368 do_scanf_conv (std::istream& is, const scanf_format_elt& fmt, |
| 5275 | 1369 T valptr, Matrix& mval, double *data, octave_idx_type& idx, |
| 1370 octave_idx_type& conversion_count, octave_idx_type nr, octave_idx_type max_size, | |
| 3636 | 1371 bool discard) |
| 2572 | 1372 { |
| 3640 | 1373 OCTAVE_SCAN (is, fmt, valptr); |
| 2572 | 1374 |
| 1375 if (is) | |
| 1376 { | |
| 1377 if (idx == max_size && ! discard) | |
| 1378 { | |
| 1379 max_size *= 2; | |
| 1380 | |
| 1381 if (nr > 0) | |
| 1382 mval.resize (nr, max_size / nr, 0.0); | |
| 1383 else | |
| 1384 mval.resize (max_size, 1, 0.0); | |
| 1385 | |
| 1386 data = mval.fortran_vec (); | |
| 1387 } | |
| 1388 | |
| 1389 if (! discard) | |
| 3268 | 1390 { |
| 3559 | 1391 conversion_count++; |
| 3268 | 1392 data[idx++] = *(valptr); |
| 1393 } | |
| 2572 | 1394 } |
| 1395 } | |
| 1396 | |
| 1397 template void | |
| 3878 | 1398 do_scanf_conv (std::istream&, const scanf_format_elt&, int*, |
| 5275 | 1399 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 2572 | 1400 |
| 3233 | 1401 template void |
| 3636 | 1402 do_scanf_conv (std::istream&, const scanf_format_elt&, long int*, |
| 5275 | 1403 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3233 | 1404 |
| 1405 template void | |
| 3636 | 1406 do_scanf_conv (std::istream&, const scanf_format_elt&, short int*, |
| 5275 | 1407 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3233 | 1408 |
| 3878 | 1409 template void |
| 1410 do_scanf_conv (std::istream&, const scanf_format_elt&, unsigned int*, | |
| 5275 | 1411 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3878 | 1412 |
| 1413 template void | |
| 1414 do_scanf_conv (std::istream&, const scanf_format_elt&, unsigned long int*, | |
| 5275 | 1415 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3878 | 1416 |
| 1417 template void | |
| 1418 do_scanf_conv (std::istream&, const scanf_format_elt&, unsigned short int*, | |
| 5275 | 1419 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3878 | 1420 |
| 2600 | 1421 #if 0 |
| 2572 | 1422 template void |
| 3636 | 1423 do_scanf_conv (std::istream&, const scanf_format_elt&, float*, |
| 5275 | 1424 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 2600 | 1425 #endif |
| 2572 | 1426 |
| 1427 template void | |
| 3636 | 1428 do_scanf_conv (std::istream&, const scanf_format_elt&, double*, |
| 5275 | 1429 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 2572 | 1430 |
| 3483 | 1431 #define DO_WHITESPACE_CONVERSION() \ |
| 1432 do \ | |
| 1433 { \ | |
| 1434 int c = EOF; \ | |
| 1435 \ | |
| 1436 while (is && (c = is.get ()) != EOF && isspace (c)) \ | |
| 1437 /* skip whitespace */; \ | |
| 1438 \ | |
| 1439 if (c != EOF) \ | |
| 1440 is.putback (c); \ | |
| 1441 } \ | |
| 1442 while (0) | |
| 1443 | |
| 1444 #define DO_LITERAL_CONVERSION() \ | |
| 1445 do \ | |
| 1446 { \ | |
| 1447 int c = EOF; \ | |
| 1448 \ | |
| 1449 int n = strlen (fmt); \ | |
| 1450 int i = 0; \ | |
| 1451 \ | |
| 1452 while (i < n && is && (c = is.get ()) != EOF) \ | |
| 1453 { \ | |
| 5326 | 1454 if (c == static_cast<unsigned char> (fmt[i])) \ |
| 3483 | 1455 { \ |
| 1456 i++; \ | |
| 1457 continue; \ | |
| 1458 } \ | |
| 1459 else \ | |
| 1460 { \ | |
| 1461 is.putback (c); \ | |
| 1462 break; \ | |
| 1463 } \ | |
| 1464 } \ | |
| 1465 \ | |
| 1466 if (i != n) \ | |
| 3538 | 1467 is.setstate (std::ios::failbit); \ |
| 3483 | 1468 } \ |
| 1469 while (0) | |
| 1470 | |
| 3640 | 1471 #define DO_PCT_CONVERSION() \ |
| 1472 do \ | |
| 1473 { \ | |
| 1474 int c = is.get (); \ | |
| 1475 \ | |
| 1476 if (c != EOF) \ | |
| 1477 { \ | |
| 1478 if (c != '%') \ | |
| 1479 { \ | |
| 1480 is.putback (c); \ | |
| 1481 is.setstate (std::ios::failbit); \ | |
| 1482 } \ | |
| 1483 } \ | |
| 1484 else \ | |
| 1485 is.setstate (std::ios::failbit); \ | |
| 1486 } \ | |
| 1487 while (0) | |
| 1488 | |
| 3483 | 1489 #define BEGIN_C_CONVERSION() \ |
| 3538 | 1490 is.unsetf (std::ios::skipws); \ |
| 3483 | 1491 \ |
| 1492 int width = elt->width ? elt->width : 1; \ | |
| 1493 \ | |
| 4051 | 1494 char *tbuf = new char[width + 1]; \ |
| 3483 | 1495 \ |
| 1496 int c = EOF; \ | |
| 1497 int n = 0; \ | |
| 1498 \ | |
| 1499 while (is && n < width && (c = is.get ()) != EOF) \ | |
| 5760 | 1500 tbuf[n++] = static_cast<char> (c); \ |
| 4051 | 1501 \ |
| 1502 tbuf[n] = '\0'; \ | |
| 3483 | 1503 \ |
| 5266 | 1504 if (n > 0 && c == EOF) \ |
| 1505 is.clear (); \ | |
| 1506 \ | |
| 4051 | 1507 std::string tmp = tbuf; \ |
| 1508 \ | |
| 1509 delete [] tbuf | |
| 3483 | 1510 |
| 1511 // For a `%s' format, skip initial whitespace and then read until the | |
| 5338 | 1512 // next whitespace character or until WIDTH characters have been read. |
| 3483 | 1513 #define BEGIN_S_CONVERSION() \ |
| 1514 int width = elt->width; \ | |
| 1515 \ | |
| 4051 | 1516 std::string tmp; \ |
| 3483 | 1517 \ |
| 1518 do \ | |
| 1519 { \ | |
| 1520 if (width) \ | |
| 5338 | 1521 { \ |
| 1522 char *tbuf = new char [width+1]; \ | |
| 1523 \ | |
| 1524 int c = EOF; \ | |
| 1525 \ | |
| 1526 int n = 0; \ | |
| 1527 \ | |
| 1528 while (is && (c = is.get ()) != EOF) \ | |
| 1529 { \ | |
| 1530 if (! isspace (c)) \ | |
| 1531 { \ | |
| 1532 tbuf[n++] = static_cast<char> (c); \ | |
| 1533 break; \ | |
| 1534 } \ | |
| 1535 } \ | |
| 4051 | 1536 \ |
| 5338 | 1537 while (is && n < width && (c = is.get ()) != EOF) \ |
| 1538 { \ | |
| 1539 if (isspace (c)) \ | |
| 1540 { \ | |
| 1541 is.putback (c); \ | |
| 1542 break; \ | |
| 1543 } \ | |
| 1544 else \ | |
| 1545 tbuf[n++] = static_cast<char> (c); \ | |
| 1546 } \ | |
| 3483 | 1547 \ |
| 5338 | 1548 tbuf[n] = '\0'; \ |
| 1549 \ | |
| 1550 if (n > 0 && c == EOF) \ | |
| 1551 is.clear (); \ | |
| 1552 \ | |
| 4051 | 1553 tmp = tbuf; \ |
| 5338 | 1554 \ |
| 4051 | 1555 delete [] tbuf; \ |
| 5338 | 1556 } \ |
| 3483 | 1557 else \ |
| 5338 | 1558 { \ |
| 1559 is >> std::ws >> tmp; \ | |
| 1560 } \ | |
| 3483 | 1561 } \ |
| 1562 while (0) | |
| 1563 | |
| 1564 // This format must match a nonempty sequence of characters. | |
| 1565 #define BEGIN_CHAR_CLASS_CONVERSION() \ | |
| 1566 int width = elt->width; \ | |
| 1567 \ | |
| 4051 | 1568 std::string tmp; \ |
| 3483 | 1569 \ |
| 1570 do \ | |
| 1571 { \ | |
| 7426 | 1572 if (! width) \ |
| 7427 | 1573 width = INT_MAX; \ |
| 1574 \ | |
| 7426 | 1575 std::ostringstream buf; \ |
| 1576 \ | |
| 1577 std::string char_class = elt->char_class; \ | |
| 4051 | 1578 \ |
| 7426 | 1579 int c = EOF; \ |
| 3483 | 1580 \ |
| 7426 | 1581 if (elt->type == '[') \ |
| 1582 { \ | |
| 1583 int chars_read = 0; \ | |
| 1584 while (is && chars_read++ < width && (c = is.get ()) != EOF \ | |
| 8021 | 1585 && char_class.find (c) != std::string::npos) \ |
| 7426 | 1586 buf << static_cast<char> (c); \ |
| 3483 | 1587 } \ |
| 1588 else \ | |
| 1589 { \ | |
| 7426 | 1590 int chars_read = 0; \ |
| 1591 while (is && chars_read++ < width && (c = is.get ()) != EOF \ | |
| 8021 | 1592 && char_class.find (c) == std::string::npos) \ |
| 7426 | 1593 buf << static_cast<char> (c); \ |
| 1594 } \ | |
| 3483 | 1595 \ |
| 7426 | 1596 if (width == INT_MAX && c != EOF) \ |
| 1597 is.putback (c); \ | |
| 3483 | 1598 \ |
| 7426 | 1599 tmp = buf.str (); \ |
| 3483 | 1600 \ |
| 7426 | 1601 if (tmp.empty ()) \ |
| 1602 is.setstate (std::ios::failbit); \ | |
| 3483 | 1603 } \ |
| 1604 while (0) | |
| 1605 | |
| 3410 | 1606 #define FINISH_CHARACTER_CONVERSION() \ |
| 1607 do \ | |
| 1608 { \ | |
| 4051 | 1609 width = tmp.length (); \ |
| 3410 | 1610 \ |
| 1611 if (is) \ | |
| 1612 { \ | |
| 1613 int i = 0; \ | |
| 1614 \ | |
| 1615 if (! discard) \ | |
| 1616 { \ | |
| 1617 conversion_count++; \ | |
| 1618 \ | |
| 1619 while (i < width && tmp[i] != '\0') \ | |
| 1620 { \ | |
| 1621 if (data_index == max_size) \ | |
| 1622 { \ | |
| 1623 max_size *= 2; \ | |
| 1624 \ | |
| 4420 | 1625 if (all_char_conv) \ |
| 3410 | 1626 { \ |
| 4420 | 1627 if (one_elt_size_spec) \ |
| 3410 | 1628 mval.resize (1, max_size, 0.0); \ |
| 4420 | 1629 else if (nr > 0) \ |
| 1630 mval.resize (nr, max_size / nr, 0.0); \ | |
| 3410 | 1631 else \ |
| 4420 | 1632 panic_impossible (); \ |
| 3410 | 1633 } \ |
| 4420 | 1634 else if (nr > 0) \ |
| 6970 | 1635 mval.resize (nr, max_size / nr, 0.0); \ |
| 4420 | 1636 else \ |
| 1637 mval.resize (max_size, 1, 0.0); \ | |
| 3410 | 1638 \ |
| 1639 data = mval.fortran_vec (); \ | |
| 1640 } \ | |
| 1641 \ | |
| 1642 data[data_index++] = tmp[i++]; \ | |
| 1643 } \ | |
| 1644 } \ | |
| 1645 } \ | |
| 1646 } \ | |
| 1647 while (0) | |
| 2117 | 1648 |
| 1649 octave_value | |
| 1650 octave_base_stream::do_scanf (scanf_format_list& fmt_list, | |
| 5275 | 1651 octave_idx_type nr, octave_idx_type nc, bool one_elt_size_spec, |
| 1652 octave_idx_type& conversion_count, const std::string& who) | |
| 2117 | 1653 { |
| 3268 | 1654 conversion_count = 0; |
| 1655 | |
| 3640 | 1656 int nconv = fmt_list.num_conversions (); |
| 1657 | |
| 5275 | 1658 octave_idx_type data_index = 0; |
| 2121 | 1659 |
| 2117 | 1660 octave_value retval = Matrix (); |
| 1661 | |
| 3268 | 1662 if (nr == 0 || nc == 0) |
| 1663 { | |
| 1664 if (one_elt_size_spec) | |
| 1665 nc = 0; | |
| 1666 | |
| 1667 return Matrix (nr, nc, 0.0); | |
| 1668 } | |
| 1669 | |
| 3523 | 1670 std::istream *isp = input_stream (); |
| 2117 | 1671 |
| 1672 bool all_char_conv = fmt_list.all_character_conversions (); | |
| 1673 | |
| 1674 Matrix mval; | |
| 1675 double *data = 0; | |
| 5275 | 1676 octave_idx_type max_size = 0; |
| 1677 octave_idx_type max_conv = 0; | |
| 1678 | |
| 1679 octave_idx_type final_nr = 0; | |
| 1680 octave_idx_type final_nc = 0; | |
| 2117 | 1681 |
| 3268 | 1682 if (all_char_conv) |
| 1683 { | |
| 4420 | 1684 // Any of these could be resized later (if we have %s |
| 1685 // conversions, we may read more than one element for each | |
| 1686 // conversion). | |
| 1687 | |
| 3268 | 1688 if (one_elt_size_spec) |
| 1689 { | |
| 3410 | 1690 max_size = 512; |
| 1691 mval.resize (1, max_size, 0.0); | |
| 1692 | |
| 3268 | 1693 if (nr > 0) |
| 1694 max_conv = nr; | |
| 1695 } | |
| 4420 | 1696 else if (nr > 0) |
| 3268 | 1697 { |
| 4420 | 1698 if (nc > 0) |
| 1699 { | |
| 1700 mval.resize (nr, nc, 0.0); | |
| 1701 max_size = max_conv = nr * nc; | |
| 1702 } | |
| 1703 else | |
| 1704 { | |
| 1705 mval.resize (nr, 32, 0.0); | |
| 1706 max_size = nr * 32; | |
| 1707 } | |
| 3268 | 1708 } |
| 4420 | 1709 else |
| 1710 panic_impossible (); | |
| 3268 | 1711 } |
| 1712 else if (nr > 0) | |
| 2117 | 1713 { |
| 1714 if (nc > 0) | |
| 1715 { | |
| 4420 | 1716 // Will not resize later. |
| 2117 | 1717 mval.resize (nr, nc, 0.0); |
| 1718 max_size = nr * nc; | |
| 3268 | 1719 max_conv = max_size; |
| 2117 | 1720 } |
| 1721 else | |
| 1722 { | |
| 4420 | 1723 // Maybe resize later. |
| 2117 | 1724 mval.resize (nr, 32, 0.0); |
| 2121 | 1725 max_size = nr * 32; |
| 2117 | 1726 } |
| 1727 } | |
| 1728 else | |
| 1729 { | |
| 4420 | 1730 // Maybe resize later. |
| 2117 | 1731 mval.resize (32, 1, 0.0); |
| 1732 max_size = 32; | |
| 1733 } | |
| 1734 | |
| 4420 | 1735 data = mval.fortran_vec (); |
| 1736 | |
| 2117 | 1737 if (isp) |
| 1738 { | |
| 3523 | 1739 std::istream& is = *isp; |
| 2117 | 1740 |
| 1741 const scanf_format_elt *elt = fmt_list.first (); | |
| 1742 | |
| 3538 | 1743 std::ios::fmtflags flags = is.flags (); |
| 2213 | 1744 |
| 2117 | 1745 for (;;) |
| 1746 { | |
| 4153 | 1747 OCTAVE_QUIT; |
| 1748 | |
| 2117 | 1749 if (elt) |
| 1750 { | |
| 3268 | 1751 if (max_conv > 0 && conversion_count == max_conv) |
| 1752 { | |
| 1753 if (all_char_conv && one_elt_size_spec) | |
| 1754 { | |
| 1755 final_nr = 1; | |
| 1756 final_nc = data_index; | |
| 1757 } | |
| 1758 else | |
| 1759 { | |
| 1760 final_nr = nr; | |
| 1761 final_nc = (data_index - 1) / nr + 1; | |
| 1762 } | |
| 1763 | |
| 1764 break; | |
| 1765 } | |
| 1766 else if (data_index == max_size) | |
| 2117 | 1767 { |
| 3410 | 1768 max_size *= 2; |
| 1769 | |
| 4420 | 1770 if (all_char_conv) |
| 2687 | 1771 { |
| 4420 | 1772 if (one_elt_size_spec) |
| 3410 | 1773 mval.resize (1, max_size, 0.0); |
| 4420 | 1774 else if (nr > 0) |
| 1775 mval.resize (nr, max_size / nr, 0.0); | |
| 3410 | 1776 else |
| 4420 | 1777 panic_impossible (); |
| 2687 | 1778 } |
| 4420 | 1779 else if (nr > 0) |
| 6970 | 1780 mval.resize (nr, max_size / nr, 0.0); |
| 4420 | 1781 else |
| 1782 mval.resize (max_size, 1, 0.0); | |
| 3410 | 1783 |
| 1784 data = mval.fortran_vec (); | |
| 2117 | 1785 } |
| 1786 | |
| 1787 const char *fmt = elt->text; | |
| 1788 | |
| 1789 bool discard = elt->discard; | |
| 1790 | |
| 1791 switch (elt->type) | |
| 1792 { | |
| 3483 | 1793 case scanf_format_elt::whitespace_conversion: |
| 1794 DO_WHITESPACE_CONVERSION (); | |
| 1795 break; | |
| 1796 | |
| 1797 case scanf_format_elt::literal_conversion: | |
| 1798 DO_LITERAL_CONVERSION (); | |
| 1799 break; | |
| 1800 | |
| 2117 | 1801 case '%': |
| 3640 | 1802 DO_PCT_CONVERSION (); |
| 3483 | 1803 break; |
| 2117 | 1804 |
| 3878 | 1805 case 'd': case 'i': |
| 2117 | 1806 { |
| 3233 | 1807 switch (elt->modifier) |
| 1808 { | |
| 1809 case 'h': | |
| 1810 { | |
| 1811 short int tmp; | |
| 3779 | 1812 do_scanf_conv (is, *elt, &tmp, mval, data, |
| 3268 | 1813 data_index, conversion_count, |
| 3233 | 1814 nr, max_size, discard); |
| 1815 } | |
| 3483 | 1816 break; |
| 3233 | 1817 |
| 1818 case 'l': | |
| 1819 { | |
| 1820 long int tmp; | |
| 3779 | 1821 do_scanf_conv (is, *elt, &tmp, mval, data, |
| 3268 | 1822 data_index, conversion_count, |
| 3233 | 1823 nr, max_size, discard); |
| 1824 } | |
| 3483 | 1825 break; |
| 3233 | 1826 |
| 1827 default: | |
| 1828 { | |
| 1829 int tmp; | |
| 3779 | 1830 do_scanf_conv (is, *elt, &tmp, mval, data, |
| 3268 | 1831 data_index, conversion_count, |
| 3233 | 1832 nr, max_size, discard); |
| 1833 } | |
| 3483 | 1834 break; |
| 3233 | 1835 } |
| 2117 | 1836 } |
| 3483 | 1837 break; |
| 2117 | 1838 |
| 3878 | 1839 case 'o': case 'u': case 'x': |
| 1840 { | |
| 1841 switch (elt->modifier) | |
| 1842 { | |
| 1843 case 'h': | |
| 1844 { | |
| 1845 unsigned short int tmp; | |
| 1846 do_scanf_conv (is, *elt, &tmp, mval, data, | |
| 1847 data_index, conversion_count, | |
| 1848 nr, max_size, discard); | |
| 1849 } | |
| 1850 break; | |
| 1851 | |
| 1852 case 'l': | |
| 1853 { | |
| 1854 unsigned long int tmp; | |
| 1855 do_scanf_conv (is, *elt, &tmp, mval, data, | |
| 1856 data_index, conversion_count, | |
| 1857 nr, max_size, discard); | |
| 1858 } | |
| 1859 break; | |
| 1860 | |
| 1861 default: | |
| 1862 { | |
| 1863 unsigned int tmp; | |
| 1864 do_scanf_conv (is, *elt, &tmp, mval, data, | |
| 1865 data_index, conversion_count, | |
| 1866 nr, max_size, discard); | |
| 1867 } | |
| 1868 break; | |
| 1869 } | |
| 1870 } | |
| 1871 break; | |
| 1872 | |
| 2117 | 1873 case 'e': case 'f': case 'g': |
| 1874 { | |
| 2600 | 1875 double tmp; |
| 1876 | |
| 3779 | 1877 do_scanf_conv (is, *elt, &tmp, mval, data, |
| 3268 | 1878 data_index, conversion_count, |
| 2600 | 1879 nr, max_size, discard); |
| 2117 | 1880 } |
| 3483 | 1881 break; |
| 2117 | 1882 |
| 2213 | 1883 case 'c': |
| 3410 | 1884 { |
| 3483 | 1885 BEGIN_C_CONVERSION (); |
| 3410 | 1886 |
| 1887 FINISH_CHARACTER_CONVERSION (); | |
| 3483 | 1888 |
| 1889 is.setf (flags); | |
| 3410 | 1890 } |
| 1891 break; | |
| 2213 | 1892 |
| 2117 | 1893 case 's': |
| 1894 { | |
| 3483 | 1895 BEGIN_S_CONVERSION (); |
| 3268 | 1896 |
| 3410 | 1897 FINISH_CHARACTER_CONVERSION (); |
| 2117 | 1898 } |
| 3483 | 1899 break; |
| 1900 | |
| 1901 case '[': case '^': | |
| 1902 { | |
| 1903 BEGIN_CHAR_CLASS_CONVERSION (); | |
| 1904 | |
| 1905 FINISH_CHARACTER_CONVERSION (); | |
| 1906 } | |
| 1907 break; | |
| 1908 | |
| 1909 case 'p': | |
| 4468 | 1910 error ("%s: unsupported format specifier", who.c_str ()); |
| 2117 | 1911 break; |
| 1912 | |
| 1913 default: | |
| 4468 | 1914 error ("%s: internal format error", who.c_str ()); |
| 2117 | 1915 break; |
| 1916 } | |
| 1917 | |
| 1918 if (! ok ()) | |
| 1919 { | |
| 1920 break; | |
| 1921 } | |
| 1922 else if (! is) | |
| 1923 { | |
| 3268 | 1924 if (all_char_conv) |
| 2117 | 1925 { |
| 3268 | 1926 if (one_elt_size_spec) |
| 1927 { | |
| 1928 final_nr = 1; | |
| 1929 final_nc = data_index; | |
| 1930 } | |
| 1931 else if (data_index > nr) | |
| 2117 | 1932 { |
| 2759 | 1933 final_nr = nr; |
| 3268 | 1934 final_nc = (data_index - 1) / nr + 1; |
| 2117 | 1935 } |
| 1936 else | |
| 1937 { | |
| 3268 | 1938 final_nr = data_index; |
| 1939 final_nc = 1; | |
| 1940 } | |
| 1941 } | |
| 1942 else if (nr > 0) | |
| 1943 { | |
| 1944 if (data_index > nr) | |
| 1945 { | |
| 1946 final_nr = nr; | |
| 1947 final_nc = (data_index - 1) / nr + 1; | |
| 1948 } | |
| 1949 else | |
| 1950 { | |
| 1951 final_nr = data_index; | |
| 2117 | 1952 final_nc = 1; |
| 1953 } | |
| 1954 } | |
| 1955 else | |
| 1956 { | |
| 3268 | 1957 final_nr = data_index; |
| 2759 | 1958 final_nc = 1; |
| 1959 } | |
| 1960 | |
| 3337 | 1961 // If it looks like we have a matching failure, then |
| 1962 // reset the failbit in the stream state. | |
| 1963 | |
| 3538 | 1964 if (is.rdstate () & std::ios::failbit) |
| 1965 is.clear (is.rdstate () & (~std::ios::failbit)); | |
| 3337 | 1966 |
| 5775 | 1967 // FIXME -- is this the right thing to do? |
| 3342 | 1968 |
| 1969 if (interactive && name () == "stdin") | |
| 2759 | 1970 { |
| 1971 is.clear (); | |
| 1972 | |
| 1973 // Skip to end of line. | |
| 1974 | |
| 1975 bool err; | |
| 4468 | 1976 do_gets (-1, err, false, who); |
| 2117 | 1977 } |
| 1978 | |
| 1979 break; | |
| 1980 } | |
| 1981 } | |
| 1982 else | |
| 1983 { | |
| 4468 | 1984 error ("%s: internal format error", who.c_str ()); |
| 2117 | 1985 break; |
| 1986 } | |
| 1987 | |
| 3640 | 1988 elt = fmt_list.next (nconv > 0); |
| 2117 | 1989 } |
| 1990 } | |
| 1991 | |
| 1992 if (ok ()) | |
| 1993 { | |
| 2121 | 1994 mval.resize (final_nr, final_nc, 0.0); |
| 2117 | 1995 |
| 3268 | 1996 retval = mval; |
| 1997 | |
| 2117 | 1998 if (all_char_conv) |
| 5279 | 1999 retval = retval.convert_to_str (false, true); |
| 2117 | 2000 } |
| 2001 | |
| 2002 return retval; | |
| 2003 } | |
| 2004 | |
| 2005 octave_value | |
| 3810 | 2006 octave_base_stream::scanf (const std::string& fmt, const Array<double>& size, |
| 5275 | 2007 octave_idx_type& conversion_count, const std::string& who) |
| 2117 | 2008 { |
| 2009 octave_value retval = Matrix (); | |
| 2010 | |
| 3559 | 2011 conversion_count = 0; |
| 2117 | 2012 |
| 3523 | 2013 std::istream *isp = input_stream (); |
| 2117 | 2014 |
| 2015 if (isp) | |
| 2016 { | |
| 2017 scanf_format_list fmt_list (fmt); | |
| 2018 | |
| 3640 | 2019 if (fmt_list.num_conversions () == -1) |
| 4468 | 2020 ::error ("%s: invalid format specified", who.c_str ()); |
| 3640 | 2021 else |
| 2117 | 2022 { |
| 5275 | 2023 octave_idx_type nr = -1; |
| 2024 octave_idx_type nc = -1; | |
| 3640 | 2025 |
| 2026 bool one_elt_size_spec; | |
| 2027 | |
| 4468 | 2028 get_size (size, nr, nc, one_elt_size_spec, who); |
| 3640 | 2029 |
| 2030 if (! error_state) | |
| 2031 retval = do_scanf (fmt_list, nr, nc, one_elt_size_spec, | |
| 4468 | 2032 conversion_count, who); |
| 2215 | 2033 } |
| 2034 } | |
| 2035 else | |
| 4468 | 2036 invalid_operation (who, "reading"); |
| 2572 | 2037 |
| 2038 return retval; | |
| 2039 } | |
| 2040 | |
| 2712 | 2041 bool |
| 2042 octave_base_stream::do_oscanf (const scanf_format_elt *elt, | |
| 4468 | 2043 octave_value& retval, const std::string& who) |
| 2572 | 2044 { |
| 2712 | 2045 bool quit = false; |
| 2215 | 2046 |
| 3523 | 2047 std::istream *isp = input_stream (); |
| 2215 | 2048 |
| 2049 if (isp) | |
| 2050 { | |
| 3523 | 2051 std::istream& is = *isp; |
| 2215 | 2052 |
| 3538 | 2053 std::ios::fmtflags flags = is.flags (); |
| 2215 | 2054 |
| 2055 if (elt) | |
| 2056 { | |
| 2057 const char *fmt = elt->text; | |
| 2058 | |
| 2059 bool discard = elt->discard; | |
| 2060 | |
| 2061 switch (elt->type) | |
| 2062 { | |
| 3483 | 2063 case scanf_format_elt::whitespace_conversion: |
| 2064 DO_WHITESPACE_CONVERSION (); | |
| 2065 break; | |
| 2066 | |
| 2067 case scanf_format_elt::literal_conversion: | |
| 2068 DO_LITERAL_CONVERSION (); | |
| 2069 break; | |
| 2070 | |
| 2215 | 2071 case '%': |
| 2072 { | |
| 3640 | 2073 DO_PCT_CONVERSION (); |
| 2074 | |
| 2075 if (! is) | |
| 2712 | 2076 quit = true; |
| 3640 | 2077 |
| 2215 | 2078 } |
| 2079 break; | |
| 2080 | |
| 3878 | 2081 case 'd': case 'i': |
| 2215 | 2082 { |
| 2083 int tmp; | |
| 2084 | |
| 3640 | 2085 if (OCTAVE_SCAN (is, *elt, &tmp)) |
| 2712 | 2086 { |
| 2087 if (! discard) | |
| 4233 | 2088 retval = tmp; |
| 2712 | 2089 } |
| 2090 else | |
| 2091 quit = true; | |
| 2215 | 2092 } |
| 2093 break; | |
| 2094 | |
| 3878 | 2095 case 'o': case 'u': case 'x': |
| 2096 { | |
| 2097 long int tmp; | |
| 2098 | |
| 2099 if (OCTAVE_SCAN (is, *elt, &tmp)) | |
| 2100 { | |
| 2101 if (! discard) | |
| 4254 | 2102 retval = tmp; |
| 3878 | 2103 } |
| 2104 else | |
| 2105 quit = true; | |
| 2106 } | |
| 2107 break; | |
| 2108 | |
| 2215 | 2109 case 'e': case 'f': case 'g': |
| 2110 { | |
| 2600 | 2111 double tmp; |
| 2112 | |
| 3640 | 2113 if (OCTAVE_SCAN (is, *elt, &tmp)) |
| 2712 | 2114 { |
| 2115 if (! discard) | |
| 2116 retval = tmp; | |
| 2117 } | |
| 2118 else | |
| 2119 quit = true; | |
| 2215 | 2120 } |
| 2121 break; | |
| 2122 | |
| 2123 case 'c': | |
| 2124 { | |
| 3483 | 2125 BEGIN_C_CONVERSION (); |
| 2126 | |
| 2127 if (! discard) | |
| 2128 retval = tmp; | |
| 2129 | |
| 2130 if (! is) | |
| 2712 | 2131 quit = true; |
| 2215 | 2132 |
| 2133 is.setf (flags); | |
| 2134 } | |
| 2135 break; | |
| 2136 | |
| 2137 case 's': | |
| 2138 { | |
| 3483 | 2139 BEGIN_S_CONVERSION (); |
| 2140 | |
| 2141 if (! discard) | |
| 2142 retval = tmp; | |
| 2572 | 2143 |
| 3268 | 2144 if (! is) |
| 2145 quit = true; | |
| 2215 | 2146 } |
| 2147 break; | |
| 2148 | |
| 3483 | 2149 case '[': case '^': |
| 2150 { | |
| 2151 BEGIN_CHAR_CLASS_CONVERSION (); | |
| 2152 | |
| 2153 if (! discard) | |
| 2154 retval = tmp; | |
| 2155 | |
| 2156 if (! is) | |
| 2157 quit = true; | |
| 2158 } | |
| 2159 break; | |
| 2160 | |
| 2161 case 'p': | |
| 4468 | 2162 error ("%s: unsupported format specifier", who.c_str ()); |
| 2215 | 2163 break; |
| 2164 | |
| 2165 default: | |
| 4468 | 2166 error ("%s: internal format error", who.c_str ()); |
| 2215 | 2167 break; |
| 2168 } | |
| 2169 } | |
| 2170 | |
| 2171 if (ok () && is.fail ()) | |
| 2172 { | |
| 4468 | 2173 error ("%s: read error", who.c_str ()); |
| 3483 | 2174 |
| 5775 | 2175 // FIXME -- is this the right thing to do? |
| 3342 | 2176 |
| 2177 if (interactive && name () == "stdin") | |
| 2215 | 2178 { |
| 2179 // Skip to end of line. | |
| 2180 | |
| 2181 bool err; | |
| 4468 | 2182 do_gets (-1, err, false, who); |
| 2215 | 2183 } |
| 2184 } | |
| 2185 } | |
| 2186 | |
| 2712 | 2187 return quit; |
| 2215 | 2188 } |
| 2189 | |
| 2190 octave_value_list | |
| 4468 | 2191 octave_base_stream::oscanf (const std::string& fmt, const std::string& who) |
| 2215 | 2192 { |
| 2193 octave_value_list retval; | |
| 2194 | |
| 3523 | 2195 std::istream *isp = input_stream (); |
| 2215 | 2196 |
| 2197 if (isp) | |
| 2198 { | |
| 3523 | 2199 std::istream& is = *isp; |
| 2215 | 2200 |
| 2201 scanf_format_list fmt_list (fmt); | |
| 2202 | |
| 2203 int nconv = fmt_list.num_conversions (); | |
| 2204 | |
| 3640 | 2205 if (nconv == -1) |
| 4468 | 2206 ::error ("%s: invalid format specified", who.c_str ()); |
| 3640 | 2207 else |
| 2215 | 2208 { |
| 3640 | 2209 is.clear (); |
| 2210 | |
| 2211 int len = fmt_list.length (); | |
| 2212 | |
| 2213 retval.resize (nconv+1, Matrix ()); | |
| 2214 | |
| 2215 const scanf_format_elt *elt = fmt_list.first (); | |
| 2216 | |
| 2217 int num_values = 0; | |
| 2218 | |
| 2219 bool quit = false; | |
| 2220 | |
| 5275 | 2221 for (octave_idx_type i = 0; i < len; i++) |
| 3640 | 2222 { |
| 2223 octave_value tmp; | |
| 2224 | |
| 4468 | 2225 quit = do_oscanf (elt, tmp, who); |
| 3640 | 2226 |
| 2227 if (quit) | |
| 2228 break; | |
| 2229 else | |
| 2230 { | |
| 2231 if (tmp.is_defined ()) | |
| 2232 retval (num_values++) = tmp; | |
| 2233 | |
| 2234 if (! ok ()) | |
| 2235 break; | |
| 2236 | |
| 2237 elt = fmt_list.next (nconv > 0); | |
| 2238 } | |
| 2239 } | |
| 2240 | |
| 4233 | 2241 retval(nconv) = num_values; |
| 3640 | 2242 |
| 2243 if (! quit) | |
| 2244 { | |
| 2245 // Pick up any trailing stuff. | |
| 2246 if (ok () && len > nconv) | |
| 2247 { | |
| 2248 octave_value tmp; | |
| 3704 | 2249 |
| 2250 elt = fmt_list.next (); | |
| 2251 | |
| 4468 | 2252 do_oscanf (elt, tmp, who); |
| 3640 | 2253 } |
| 2254 } | |
| 2117 | 2255 } |
| 2256 } | |
| 2257 else | |
| 4468 | 2258 invalid_operation (who, "reading"); |
| 2117 | 2259 |
| 2260 return retval; | |
| 2261 } | |
| 2262 | |
| 2263 // Functions that are defined for all output streams (output streams | |
| 2264 // are those that define os). | |
| 2265 | |
| 2266 int | |
| 2267 octave_base_stream::flush (void) | |
| 2268 { | |
| 2269 int retval = -1; | |
| 2270 | |
| 3523 | 2271 std::ostream *os = output_stream (); |
| 2117 | 2272 |
| 2273 if (os) | |
| 2274 { | |
| 2275 os->flush (); | |
| 2276 | |
| 2277 if (os->good ()) | |
| 2278 retval = 0; | |
| 2279 } | |
| 2280 else | |
| 2281 invalid_operation ("fflush", "writing"); | |
| 2282 | |
| 2283 return retval; | |
| 2284 } | |
| 2285 | |
| 2286 class | |
| 2287 printf_value_cache | |
| 2288 { | |
| 2289 public: | |
| 2290 | |
| 3653 | 2291 enum state { ok, conversion_error }; |
| 2117 | 2292 |
| 7352 | 2293 printf_value_cache (const octave_value_list& args, const std::string& who) |
| 2117 | 2294 : values (args), val_idx (0), elt_idx (0), |
| 2295 n_vals (values.length ()), n_elts (0), data (0), | |
| 7352 | 2296 curr_state (ok) |
| 2297 { | |
| 2298 for (octave_idx_type i = 0; i < values.length (); i++) | |
| 2299 { | |
| 2300 octave_value val = values(i); | |
| 2301 | |
| 2302 if (val.is_map () || val.is_cell () || val.is_object () | |
| 2303 || val.is_list ()) | |
| 2304 { | |
| 2305 gripe_wrong_type_arg (who, val); | |
| 2306 break; | |
| 2307 } | |
| 2308 } | |
| 2309 } | |
| 2117 | 2310 |
| 2311 ~printf_value_cache (void) { } | |
| 2312 | |
| 2313 // Get the current value as a double and advance the internal pointer. | |
| 2314 double double_value (void); | |
| 2315 | |
| 2316 // Get the current value as an int and advance the internal pointer. | |
| 2317 int int_value (void); | |
| 2318 | |
| 2319 // Get the current value as a string and advance the internal pointer. | |
| 3523 | 2320 std::string string_value (void); |
| 2117 | 2321 |
| 3145 | 2322 operator bool () const { return (curr_state == ok); } |
| 2117 | 2323 |
| 3653 | 2324 bool exhausted (void) { return (val_idx >= n_vals); } |
| 2117 | 2325 |
| 2326 private: | |
| 2327 | |
| 2328 const octave_value_list values; | |
| 2329 int val_idx; | |
| 2330 int elt_idx; | |
| 2331 int n_vals; | |
| 2332 int n_elts; | |
| 2333 const double *data; | |
| 4874 | 2334 NDArray curr_val; |
| 2117 | 2335 state curr_state; |
| 2336 | |
| 2337 // Must create value cache with values! | |
| 2338 | |
| 2339 printf_value_cache (void); | |
| 2340 | |
| 2341 // No copying! | |
| 2342 | |
| 2343 printf_value_cache (const printf_value_cache&); | |
| 2344 | |
| 2345 printf_value_cache& operator = (const printf_value_cache&); | |
| 2346 }; | |
| 2347 | |
| 2348 double | |
| 2349 printf_value_cache::double_value (void) | |
| 2350 { | |
| 2351 double retval = 0.0; | |
| 2352 | |
| 3711 | 2353 if (exhausted ()) |
| 2354 curr_state = conversion_error; | |
| 2355 | |
| 2356 while (! exhausted ()) | |
| 2117 | 2357 { |
| 2358 if (! data) | |
| 2359 { | |
| 2360 octave_value tmp_val = values (val_idx); | |
| 2361 | |
| 5476 | 2362 // Force string conversion here for compatibility. |
| 2363 | |
| 2364 curr_val = tmp_val.array_value (true); | |
| 2117 | 2365 |
| 2366 if (! error_state) | |
| 2367 { | |
| 2368 elt_idx = 0; | |
| 2369 n_elts = curr_val.length (); | |
| 2370 data = curr_val.data (); | |
| 2371 } | |
| 2372 else | |
| 2373 { | |
| 2374 curr_state = conversion_error; | |
| 2375 break; | |
| 2376 } | |
| 2377 } | |
| 2378 | |
| 2379 if (elt_idx < n_elts) | |
| 2380 { | |
| 3653 | 2381 retval = data[elt_idx++]; |
| 2382 | |
| 2383 if (elt_idx >= n_elts) | |
| 2384 { | |
| 2385 elt_idx = 0; | |
| 2386 val_idx++; | |
| 2387 data = 0; | |
| 2388 } | |
| 2389 | |
| 2117 | 2390 break; |
| 2391 } | |
| 2392 else | |
| 2393 { | |
| 2394 val_idx++; | |
| 2395 data = 0; | |
| 3969 | 2396 |
| 2397 if (n_elts == 0 && exhausted ()) | |
| 2398 curr_state = conversion_error; | |
| 2399 | |
| 2117 | 2400 continue; |
| 2401 } | |
| 2402 } | |
| 2403 | |
| 2404 return retval; | |
| 2405 } | |
| 2406 | |
| 2407 int | |
| 2408 printf_value_cache::int_value (void) | |
| 2409 { | |
| 2410 int retval = 0; | |
| 2411 | |
| 2412 double dval = double_value (); | |
| 2413 | |
| 2414 if (! error_state) | |
| 2415 { | |
| 2416 if (D_NINT (dval) == dval) | |
| 2417 retval = NINT (dval); | |
| 2418 else | |
| 2419 curr_state = conversion_error; | |
| 2420 } | |
| 2421 | |
| 2422 return retval; | |
| 2423 } | |
| 2424 | |
| 3536 | 2425 std::string |
| 2117 | 2426 printf_value_cache::string_value (void) |
| 2427 { | |
| 3523 | 2428 std::string retval; |
| 2117 | 2429 |
| 4425 | 2430 if (exhausted ()) |
| 2431 curr_state = conversion_error; | |
| 4257 | 2432 else |
| 2117 | 2433 { |
| 4425 | 2434 octave_value tval = values (val_idx++); |
| 2435 | |
| 2436 if (tval.rows () == 1) | |
| 2437 retval = tval.string_value (); | |
| 2438 else | |
| 2439 { | |
| 2440 // In the name of Matlab compatibility. | |
| 2441 | |
| 2442 charMatrix chm = tval.char_matrix_value (); | |
| 2443 | |
| 5275 | 2444 octave_idx_type nr = chm.rows (); |
| 2445 octave_idx_type nc = chm.columns (); | |
| 4425 | 2446 |
| 2447 int k = 0; | |
| 2448 | |
| 2449 retval.resize (nr * nc, '\0'); | |
| 2450 | |
| 5275 | 2451 for (octave_idx_type j = 0; j < nc; j++) |
| 2452 for (octave_idx_type i = 0; i < nr; i++) | |
| 4425 | 2453 retval[k++] = chm(i,j); |
| 2454 } | |
| 2455 | |
| 2456 if (error_state) | |
| 2457 curr_state = conversion_error; | |
| 2117 | 2458 } |
| 4257 | 2459 |
| 2117 | 2460 return retval; |
| 2461 } | |
| 2462 | |
| 2463 // Ugh again and again. | |
| 2464 | |
| 2572 | 2465 template <class T> |
| 3620 | 2466 int |
| 3523 | 2467 do_printf_conv (std::ostream& os, const char *fmt, int nsa, int sa_1, |
| 4468 | 2468 int sa_2, T arg, const std::string& who) |
| 2572 | 2469 { |
| 3620 | 2470 int retval = 0; |
| 2471 | |
| 2572 | 2472 switch (nsa) |
| 2473 { | |
| 2474 case 2: | |
| 3640 | 2475 retval = octave_format (os, fmt, sa_1, sa_2, arg); |
| 2572 | 2476 break; |
| 2477 | |
| 2478 case 1: | |
| 3640 | 2479 retval = octave_format (os, fmt, sa_1, arg); |
| 2572 | 2480 break; |
| 2481 | |
| 2482 case 0: | |
| 3640 | 2483 retval = octave_format (os, fmt, arg); |
| 2572 | 2484 break; |
| 2485 | |
| 2486 default: | |
| 4468 | 2487 ::error ("%s: internal error handling format", who.c_str ()); |
| 2572 | 2488 break; |
| 2489 } | |
| 3620 | 2490 |
| 2491 return retval; | |
| 2572 | 2492 } |
| 2493 | |
| 3620 | 2494 template int |
| 4468 | 2495 do_printf_conv (std::ostream&, const char*, int, int, int, int, |
| 2496 const std::string&); | |
| 2497 | |
| 2498 template int | |
| 2499 do_printf_conv (std::ostream&, const char*, int, int, int, long, | |
| 2500 const std::string&); | |
| 2501 | |
| 3878 | 2502 template int |
| 4468 | 2503 do_printf_conv (std::ostream&, const char*, int, int, int, unsigned int, |
| 2504 const std::string&); | |
| 2505 | |
| 2506 template int | |
| 2507 do_printf_conv (std::ostream&, const char*, int, int, int, unsigned long, | |
| 2508 const std::string&); | |
| 2509 | |
| 2510 template int | |
| 2511 do_printf_conv (std::ostream&, const char*, int, int, int, double, | |
| 2512 const std::string&); | |
| 2513 | |
| 2514 template int | |
| 2515 do_printf_conv (std::ostream&, const char*, int, int, int, const char*, | |
| 2516 const std::string&); | |
| 2117 | 2517 |
| 6492 | 2518 #define DO_DOUBLE_CONV(TQUAL) \ |
| 2519 do \ | |
| 2520 { \ | |
| 7199 | 2521 if (val > std::numeric_limits<TQUAL long>::max () \ |
| 2522 || val < std::numeric_limits<TQUAL long>::min ()) \ | |
| 6492 | 2523 { \ |
| 7199 | 2524 std::string tfmt = fmt; \ |
| 6492 | 2525 \ |
| 7199 | 2526 tfmt.replace (tfmt.rfind (elt->type), 1, ".f"); \ |
| 6492 | 2527 \ |
| 7199 | 2528 if (elt->modifier == 'l') \ |
| 2529 tfmt.replace (tfmt.rfind (elt->modifier), 1, ""); \ | |
| 2530 \ | |
| 2531 retval += do_printf_conv (os, tfmt.c_str (), nsa, sa_1, sa_2, \ | |
| 2532 val, who); \ | |
| 6492 | 2533 } \ |
| 2534 else \ | |
| 7199 | 2535 retval += do_printf_conv (os, fmt, nsa, sa_1, sa_2, \ |
| 2536 static_cast<TQUAL long> (val), who); \ | |
| 6492 | 2537 } \ |
| 2538 while (0) | |
| 2539 | |
| 2117 | 2540 int |
| 2541 octave_base_stream::do_printf (printf_format_list& fmt_list, | |
| 4468 | 2542 const octave_value_list& args, |
| 2543 const std::string& who) | |
| 2117 | 2544 { |
| 3620 | 2545 int retval = 0; |
| 2117 | 2546 |
| 3640 | 2547 int nconv = fmt_list.num_conversions (); |
| 2548 | |
| 3523 | 2549 std::ostream *osp = output_stream (); |
| 2117 | 2550 |
| 2551 if (osp) | |
| 2552 { | |
| 3523 | 2553 std::ostream& os = *osp; |
| 2117 | 2554 |
| 2555 const printf_format_elt *elt = fmt_list.first (); | |
| 2556 | |
| 7352 | 2557 printf_value_cache val_cache (args, who); |
| 2558 | |
| 2559 if (error_state) | |
| 2560 return retval; | |
| 2117 | 2561 |
| 2562 for (;;) | |
| 2563 { | |
| 4153 | 2564 OCTAVE_QUIT; |
| 2565 | |
| 2117 | 2566 if (elt) |
| 2567 { | |
| 3640 | 2568 // NSA is the number of `star' args to convert. |
| 2569 | |
| 2570 int nsa = (elt->fw < 0) + (elt->prec < 0); | |
| 2117 | 2571 |
| 2572 int sa_1 = 0; | |
| 2573 int sa_2 = 0; | |
| 2574 | |
| 2575 if (nsa > 0) | |
| 2576 { | |
| 2577 sa_1 = val_cache.int_value (); | |
| 2578 | |
| 2579 if (! val_cache) | |
| 2580 break; | |
| 2581 else | |
| 2582 { | |
| 2583 if (nsa > 1) | |
| 2584 { | |
| 2585 sa_2 = val_cache.int_value (); | |
| 2586 | |
| 2587 if (! val_cache) | |
| 2588 break; | |
| 2589 } | |
| 2590 } | |
| 2591 } | |
| 2592 | |
| 2593 const char *fmt = elt->text; | |
| 2594 | |
| 3640 | 2595 if (elt->type == '%') |
| 2596 { | |
| 2597 os << "%"; | |
| 2598 retval++; | |
| 2599 } | |
| 2600 else if (elt->args == 0 && elt->text) | |
| 2601 { | |
| 2602 os << elt->text; | |
| 2603 retval += strlen (elt->text); | |
| 2604 } | |
| 4257 | 2605 else if (elt->type == 's') |
| 3640 | 2606 { |
| 2607 std::string val = val_cache.string_value (); | |
| 2608 | |
| 2609 if (val_cache) | |
| 2610 retval += do_printf_conv (os, fmt, nsa, sa_1, | |
| 4468 | 2611 sa_2, val.c_str (), who); |
| 3640 | 2612 else |
| 2613 break; | |
| 2614 } | |
| 2117 | 2615 else |
| 2616 { | |
| 3640 | 2617 double val = val_cache.double_value (); |
| 2618 | |
| 2619 if (val_cache) | |
| 2117 | 2620 { |
| 6492 | 2621 if (lo_ieee_isnan (val) || xisinf (val)) |
| 4303 | 2622 { |
| 2623 std::string tfmt = fmt; | |
| 6865 | 2624 std::string::size_type i1, i2; |
| 2625 | |
| 2626 tfmt.replace ((i1 = tfmt.rfind (elt->type)), | |
| 2627 1, 1, 's'); | |
| 2628 | |
| 8021 | 2629 if ((i2 = tfmt.rfind ('.')) != std::string::npos && i2 < i1) |
| 6865 | 2630 { |
| 2631 tfmt.erase (i2, i1-i2); | |
| 2632 if (elt->prec < 0) | |
| 2633 nsa--; | |
| 2634 } | |
| 6492 | 2635 |
| 2636 const char *tval = xisinf (val) | |
| 2637 ? (val < 0 ? "-Inf" : "Inf") | |
| 2638 : (lo_ieee_is_NA (val) ? "NA" : "NaN"); | |
| 2639 | |
| 2640 retval += do_printf_conv (os, tfmt.c_str (), | |
| 2641 nsa, sa_1, sa_2, | |
| 2642 tval, who); | |
| 4303 | 2643 } |
| 2644 else | |
| 3640 | 2645 { |
| 6492 | 2646 char type = elt->type; |
| 2647 | |
| 2648 switch (type) | |
| 4303 | 2649 { |
| 2650 case 'd': case 'i': case 'c': | |
| 7227 | 2651 DO_DOUBLE_CONV (OCTAVE_EMPTY_CPP_ARG); |
| 4303 | 2652 break; |
| 2653 | |
| 2654 case 'o': case 'x': case 'X': case 'u': | |
| 6492 | 2655 DO_DOUBLE_CONV (unsigned); |
| 4303 | 2656 break; |
| 2657 | |
| 2658 case 'f': case 'e': case 'E': | |
| 2659 case 'g': case 'G': | |
| 2660 retval | |
| 2661 += do_printf_conv (os, fmt, nsa, sa_1, sa_2, | |
| 4468 | 2662 val, who); |
| 4303 | 2663 break; |
| 2664 | |
| 2665 default: | |
| 4468 | 2666 error ("%s: invalid format specifier", |
| 2667 who.c_str ()); | |
| 4303 | 2668 return -1; |
| 2669 break; | |
| 2670 } | |
| 3640 | 2671 } |
| 2117 | 2672 } |
| 2673 else | |
| 3620 | 2674 break; |
| 2117 | 2675 } |
| 2676 | |
| 3620 | 2677 if (! os) |
| 2117 | 2678 { |
| 4468 | 2679 error ("%s: write error", who.c_str ()); |
| 2117 | 2680 break; |
| 2681 } | |
| 2682 } | |
| 2683 else | |
| 2684 { | |
| 4468 | 2685 ::error ("%s: internal error handling format", who.c_str ()); |
| 2117 | 2686 retval = -1; |
| 2687 break; | |
| 2688 } | |
| 2689 | |
| 3640 | 2690 elt = fmt_list.next (nconv > 0 && ! val_cache.exhausted ()); |
| 2691 | |
| 2692 if (! elt || (val_cache.exhausted () && elt->args > 0)) | |
| 2693 break; | |
| 2694 } | |
| 2117 | 2695 } |
| 3640 | 2696 else |
| 4468 | 2697 invalid_operation (who, "writing"); |
| 2117 | 2698 |
| 2699 return retval; | |
| 2700 } | |
| 2701 | |
| 2702 int | |
| 3640 | 2703 octave_base_stream::printf (const std::string& fmt, |
| 4468 | 2704 const octave_value_list& args, |
| 2705 const std::string& who) | |
| 2117 | 2706 { |
| 3640 | 2707 int retval = 0; |
| 2708 | |
| 2709 printf_format_list fmt_list (fmt); | |
| 2710 | |
| 2711 if (fmt_list.num_conversions () == -1) | |
| 4468 | 2712 ::error ("%s: invalid format specified", who.c_str ()); |
| 2117 | 2713 else |
| 4468 | 2714 retval = do_printf (fmt_list, args, who); |
| 2117 | 2715 |
| 2716 return retval; | |
| 2717 } | |
| 2718 | |
| 2719 int | |
| 4468 | 2720 octave_base_stream::puts (const std::string& s, const std::string& who) |
| 2117 | 2721 { |
| 2722 int retval = -1; | |
| 2723 | |
| 3523 | 2724 std::ostream *osp = output_stream (); |
| 2117 | 2725 |
| 2726 if (osp) | |
| 2727 { | |
| 3523 | 2728 std::ostream& os = *osp; |
| 2117 | 2729 |
| 2730 os << s; | |
| 2731 | |
| 2732 if (os) | |
| 2733 { | |
| 5775 | 2734 // FIXME -- why does this seem to be necessary? |
| 2117 | 2735 // Without it, output from a loop like |
| 2736 // | |
| 2737 // for i = 1:100, fputs (stdout, "foo\n"); endfor | |
| 2738 // | |
| 2739 // doesn't seem to go to the pager immediately. | |
| 2740 | |
| 2741 os.flush (); | |
| 2742 | |
| 2743 if (os) | |
| 2744 retval = 0; | |
| 2745 else | |
| 4468 | 2746 error ("%s: write error", who.c_str ()); |
| 2117 | 2747 } |
| 2748 else | |
| 4468 | 2749 error ("%s: write error", who.c_str ()); |
| 2117 | 2750 } |
| 2751 else | |
| 4468 | 2752 invalid_operation (who, "writing"); |
| 2117 | 2753 |
| 2754 return retval; | |
| 2755 } | |
| 2756 | |
| 2757 // Return current error message for this stream. | |
| 2758 | |
| 3536 | 2759 std::string |
| 2435 | 2760 octave_base_stream::error (bool clear_err, int& err_num) |
| 2117 | 2761 { |
| 2435 | 2762 err_num = fail ? -1 : 0; |
| 2117 | 2763 |
| 3523 | 2764 std::string tmp = errmsg; |
| 2117 | 2765 |
| 2766 if (clear_err) | |
| 2767 clear (); | |
| 2768 | |
| 2769 return tmp; | |
| 2770 } | |
| 2771 | |
| 2772 void | |
| 4468 | 2773 octave_base_stream::invalid_operation (const std::string& who, const char *rw) |
| 2117 | 2774 { |
| 4468 | 2775 // Note that this is not ::error () ! |
| 2776 | |
| 6297 | 2777 error (who, std::string ("stream not open for ") + rw); |
| 2117 | 2778 } |
| 2779 | |
| 3552 | 2780 octave_stream::octave_stream (octave_base_stream *bs) |
| 3340 | 2781 : rep (bs) |
| 2782 { | |
| 2783 if (rep) | |
| 2784 rep->count = 1; | |
| 2785 } | |
| 2786 | |
| 2787 octave_stream::~octave_stream (void) | |
| 2788 { | |
| 2789 if (rep && --rep->count == 0) | |
| 2790 delete rep; | |
| 2791 } | |
| 2792 | |
| 2793 octave_stream::octave_stream (const octave_stream& s) | |
| 2794 : rep (s.rep) | |
| 2795 { | |
| 2796 if (rep) | |
| 2797 rep->count++; | |
| 2798 } | |
| 2799 | |
| 2800 octave_stream& | |
| 2801 octave_stream::operator = (const octave_stream& s) | |
| 2802 { | |
| 2803 if (rep != s.rep) | |
| 2804 { | |
| 2805 if (rep && --rep->count == 0) | |
| 2806 delete rep; | |
| 2807 | |
| 2808 rep = s.rep; | |
| 2809 | |
| 2810 if (rep) | |
| 2811 rep->count++; | |
| 2812 } | |
| 2813 | |
| 2814 return *this; | |
| 2815 } | |
| 2816 | |
| 2117 | 2817 int |
| 2818 octave_stream::flush (void) | |
| 2819 { | |
| 2820 int retval = -1; | |
| 2821 | |
| 5659 | 2822 if (stream_ok ()) |
| 2117 | 2823 retval = rep->flush (); |
| 2824 | |
| 2825 return retval; | |
| 2826 } | |
| 2827 | |
| 3536 | 2828 std::string |
| 5275 | 2829 octave_stream::getl (octave_idx_type max_len, bool& err, const std::string& who) |
| 2117 | 2830 { |
| 3523 | 2831 std::string retval; |
| 2117 | 2832 |
| 5659 | 2833 if (stream_ok ()) |
| 4468 | 2834 retval = rep->getl (max_len, err, who); |
| 2117 | 2835 |
| 2836 return retval; | |
| 2837 } | |
| 2838 | |
| 3536 | 2839 std::string |
| 4468 | 2840 octave_stream::getl (const octave_value& tc_max_len, bool& err, |
| 2841 const std::string& who) | |
| 2117 | 2842 { |
| 3523 | 2843 std::string retval; |
| 2117 | 2844 |
| 2845 err = false; | |
| 2846 | |
| 2847 int conv_err = 0; | |
| 2848 | |
| 6345 | 2849 int max_len = -1; |
| 2850 | |
| 2851 if (tc_max_len.is_defined ()) | |
| 2117 | 2852 { |
| 6345 | 2853 max_len = convert_to_valid_int (tc_max_len, conv_err); |
| 2854 | |
| 2855 if (conv_err || max_len < 0) | |
| 2856 { | |
| 2857 err = true; | |
| 2858 ::error ("%s: invalid maximum length specified", who.c_str ()); | |
| 2859 } | |
| 2117 | 2860 } |
| 6345 | 2861 |
| 2862 if (! error_state) | |
| 4468 | 2863 retval = getl (max_len, err, who); |
| 2117 | 2864 |
| 2865 return retval; | |
| 2866 } | |
| 2867 | |
| 3536 | 2868 std::string |
| 5275 | 2869 octave_stream::gets (octave_idx_type max_len, bool& err, const std::string& who) |
| 2117 | 2870 { |
| 3523 | 2871 std::string retval; |
| 2117 | 2872 |
| 5659 | 2873 if (stream_ok ()) |
| 4468 | 2874 retval = rep->gets (max_len, err, who); |
| 2117 | 2875 |
| 2876 return retval; | |
| 2877 } | |
| 2878 | |
| 3536 | 2879 std::string |
| 4468 | 2880 octave_stream::gets (const octave_value& tc_max_len, bool& err, |
| 2881 const std::string& who) | |
| 2117 | 2882 { |
| 3523 | 2883 std::string retval; |
| 2117 | 2884 |
| 2885 err = false; | |
| 2886 | |
| 2887 int conv_err = 0; | |
| 2888 | |
| 6345 | 2889 int max_len = -1; |
| 2890 | |
| 2891 if (tc_max_len.is_defined ()) | |
| 2117 | 2892 { |
| 6345 | 2893 max_len = convert_to_valid_int (tc_max_len, conv_err); |
| 2894 | |
| 2895 if (conv_err || max_len < 0) | |
| 2896 { | |
| 2897 err = true; | |
| 2898 ::error ("%s: invalid maximum length specified", who.c_str ()); | |
| 2899 } | |
| 2117 | 2900 } |
| 6345 | 2901 |
| 2902 if (! error_state) | |
| 4468 | 2903 retval = gets (max_len, err, who); |
| 2117 | 2904 |
| 2905 return retval; | |
| 2906 } | |
| 2907 | |
| 2908 int | |
| 4797 | 2909 octave_stream::seek (long offset, int origin) |
| 2117 | 2910 { |
| 5065 | 2911 int status = -1; |
| 2117 | 2912 |
| 5659 | 2913 if (stream_ok ()) |
| 4889 | 2914 { |
| 2915 clearerr (); | |
| 2916 | |
| 5065 | 2917 long orig_pos = rep->tell (); |
| 2918 | |
| 2919 status = rep->seek (offset, origin); | |
| 2920 | |
| 2921 if (status == 0) | |
| 2922 { | |
| 2923 long save_pos = rep->tell (); | |
| 2924 | |
| 2925 rep->seek (0, SEEK_END); | |
| 2926 | |
| 2927 long pos_eof = rep->tell (); | |
| 2928 | |
| 2929 // I don't think save_pos can be less than zero, but we'll | |
| 2930 // check anyway... | |
| 2931 | |
| 2932 if (save_pos > pos_eof || save_pos < 0) | |
| 2933 { | |
| 2934 // Seek outside bounds of file. Failure should leave | |
| 2935 // position unchanged. | |
| 2936 | |
| 2937 rep->seek (orig_pos, SEEK_SET); | |
| 2938 | |
| 2939 status = -1; | |
| 2940 } | |
| 2941 else | |
| 2942 { | |
| 2943 // Is it possible for this to fail? We are just | |
| 2944 // returning to a position after the first successful | |
| 2945 // seek. | |
| 2946 | |
| 2947 rep->seek (save_pos, SEEK_SET); | |
| 2948 } | |
| 2949 } | |
| 4889 | 2950 } |
| 2117 | 2951 |
| 5065 | 2952 return status; |
| 2117 | 2953 } |
| 2954 | |
| 2955 int | |
| 2956 octave_stream::seek (const octave_value& tc_offset, | |
| 2957 const octave_value& tc_origin) | |
| 2958 { | |
| 2959 int retval = -1; | |
| 2960 | |
| 4797 | 2961 long xoffset = tc_offset.long_value (true); |
| 4645 | 2962 |
| 2963 if (! error_state) | |
| 2117 | 2964 { |
| 4645 | 2965 int conv_err = 0; |
| 2966 | |
| 4797 | 2967 int origin = SEEK_SET; |
| 2117 | 2968 |
| 2341 | 2969 if (tc_origin.is_string ()) |
| 2117 | 2970 { |
| 3523 | 2971 std::string xorigin = tc_origin.string_value (); |
| 2341 | 2972 |
| 2973 if (xorigin == "bof") | |
| 4797 | 2974 origin = SEEK_SET; |
| 2341 | 2975 else if (xorigin == "cof") |
| 4797 | 2976 origin = SEEK_CUR; |
| 2341 | 2977 else if (xorigin == "eof") |
| 4797 | 2978 origin = SEEK_END; |
| 2117 | 2979 else |
| 2980 conv_err = -1; | |
| 2981 } | |
| 2341 | 2982 else |
| 2983 { | |
| 2984 int xorigin = convert_to_valid_int (tc_origin, conv_err); | |
| 2985 | |
| 2986 if (! conv_err) | |
| 2987 { | |
| 2988 if (xorigin == -1) | |
| 4797 | 2989 origin = SEEK_SET; |
| 2341 | 2990 else if (xorigin == 0) |
| 4797 | 2991 origin = SEEK_CUR; |
| 2341 | 2992 else if (xorigin == 1) |
| 4797 | 2993 origin = SEEK_END; |
| 2341 | 2994 else |
| 2995 conv_err = -1; | |
| 2996 } | |
| 2997 } | |
| 2117 | 2998 |
| 2999 if (! conv_err) | |
| 5065 | 3000 { |
| 3001 retval = seek (xoffset, origin); | |
| 3002 | |
| 3003 if (retval != 0) | |
| 3004 error ("fseek: failed to seek to requested position"); | |
| 3005 } | |
| 2117 | 3006 else |
| 3007 error ("fseek: invalid value for origin"); | |
| 3008 } | |
| 3009 else | |
| 3010 error ("fseek: invalid value for offset"); | |
| 3011 | |
| 3012 return retval; | |
| 3013 } | |
| 3014 | |
| 4797 | 3015 long |
| 3016 octave_stream::tell (void) | |
| 2117 | 3017 { |
| 4797 | 3018 long retval = -1; |
| 2117 | 3019 |
| 5659 | 3020 if (stream_ok ()) |
| 2117 | 3021 retval = rep->tell (); |
| 3022 | |
| 3023 return retval; | |
| 3024 } | |
| 3025 | |
| 3026 int | |
| 3027 octave_stream::rewind (void) | |
| 3028 { | |
| 6296 | 3029 return seek (0, SEEK_SET); |
| 2117 | 3030 } |
| 3031 | |
| 3340 | 3032 bool |
| 3033 octave_stream::is_open (void) const | |
| 3034 { | |
| 3035 bool retval = false; | |
| 3036 | |
| 5659 | 3037 if (stream_ok ()) |
| 3340 | 3038 retval = rep->is_open (); |
| 3039 | |
| 3040 return retval; | |
| 3041 } | |
| 3042 | |
| 3043 void | |
| 3044 octave_stream::close (void) | |
| 3045 { | |
| 5659 | 3046 if (stream_ok ()) |
| 3340 | 3047 rep->close (); |
| 3048 } | |
| 3049 | |
| 4944 | 3050 template <class RET_T, class READ_T> |
| 2117 | 3051 octave_value |
| 5275 | 3052 do_read (octave_stream& strm, octave_idx_type nr, octave_idx_type nc, octave_idx_type block_size, |
| 7995 | 3053 octave_idx_type skip, bool do_float_fmt_conv, bool do_NA_conv, |
| 5275 | 3054 oct_mach_info::float_format from_flt_fmt, octave_idx_type& count) |
| 2117 | 3055 { |
| 3056 octave_value retval; | |
| 3057 | |
| 4944 | 3058 RET_T nda; |
| 3059 | |
| 3060 count = 0; | |
| 3061 | |
| 3062 typename octave_array_type_traits<RET_T>::element_type elt_zero | |
| 3063 = typename octave_array_type_traits<RET_T>::element_type (); | |
| 3064 | |
| 3065 typename octave_array_type_traits<RET_T>::element_type *dat = 0; | |
| 3066 | |
| 5275 | 3067 octave_idx_type max_size = 0; |
| 3068 | |
| 3069 octave_idx_type final_nr = 0; | |
| 3070 octave_idx_type final_nc = 1; | |
| 4944 | 3071 |
| 3072 if (nr > 0) | |
| 3073 { | |
| 3074 if (nc > 0) | |
| 3075 { | |
| 3076 nda.resize (dim_vector (nr, nc), elt_zero); | |
| 3077 dat = nda.fortran_vec (); | |
| 3078 max_size = nr * nc; | |
| 3079 } | |
| 3080 else | |
| 3081 { | |
| 3082 nda.resize (dim_vector (nr, 32), elt_zero); | |
| 3083 dat = nda.fortran_vec (); | |
| 3084 max_size = nr * 32; | |
| 3085 } | |
| 3086 } | |
| 3087 else | |
| 3088 { | |
| 3089 nda.resize (dim_vector (32, 1), elt_zero); | |
| 3090 dat = nda.fortran_vec (); | |
| 3091 max_size = 32; | |
| 3092 } | |
| 3093 | |
| 5775 | 3094 // FIXME -- byte order for Cray? |
| 4944 | 3095 |
| 3096 bool swap = false; | |
| 3097 | |
| 3098 if (oct_mach_info::words_big_endian ()) | |
| 3099 swap = (from_flt_fmt == oct_mach_info::flt_fmt_ieee_little_endian | |
| 3100 || from_flt_fmt == oct_mach_info::flt_fmt_vax_g | |
| 3101 || from_flt_fmt == oct_mach_info::flt_fmt_vax_g); | |
| 3102 else | |
| 3103 swap = (from_flt_fmt == oct_mach_info::flt_fmt_ieee_big_endian); | |
| 3104 | |
| 3105 union | |
| 3106 { | |
| 3107 char buf[sizeof (typename octave_type_traits<READ_T>::val_type)]; | |
| 3108 typename octave_type_traits<READ_T>::val_type val; | |
| 3109 } u; | |
| 3110 | |
| 3111 std::istream *isp = strm.input_stream (); | |
| 3112 | |
| 3113 if (isp) | |
| 3114 { | |
| 3115 std::istream& is = *isp; | |
| 3116 | |
| 5275 | 3117 octave_idx_type elts_read = 0; |
| 4944 | 3118 |
| 3119 for (;;) | |
| 3120 { | |
| 5775 | 3121 // FIXME -- maybe there should be a special case for |
| 4944 | 3122 // skip == 0. |
| 3123 | |
| 3124 if (is) | |
| 3125 { | |
| 3126 if (nr > 0 && nc > 0 && count == max_size) | |
| 3127 { | |
| 3128 final_nr = nr; | |
| 3129 final_nc = nc; | |
| 3130 | |
| 3131 break; | |
| 3132 } | |
| 3133 | |
| 3134 is.read (u.buf, sizeof (typename octave_type_traits<READ_T>::val_type)); | |
| 3135 | |
| 3136 // We only swap bytes for integer types. For float | |
| 3137 // types, the format conversion will also handle byte | |
| 3138 // swapping. | |
| 3139 | |
| 3140 if (swap) | |
| 3141 swap_bytes<sizeof (typename octave_type_traits<READ_T>::val_type)> (u.buf); | |
| 3142 else if (do_float_fmt_conv) | |
| 3143 do_float_format_conversion | |
| 3144 (u.buf, | |
| 3145 sizeof (typename octave_type_traits<READ_T>::val_type), | |
| 3146 1, from_flt_fmt, oct_mach_info::float_format ()); | |
| 3147 | |
| 3148 typename octave_array_type_traits<RET_T>::element_type tmp | |
| 3149 = static_cast <typename octave_array_type_traits<RET_T>::element_type> (u.val); | |
| 3150 | |
| 5030 | 3151 if (is) |
| 4944 | 3152 { |
| 5030 | 3153 if (count == max_size) |
| 4944 | 3154 { |
| 5030 | 3155 max_size *= 2; |
| 3156 | |
| 3157 if (nr > 0) | |
| 3158 nda.resize (dim_vector (nr, max_size / nr), | |
| 3159 elt_zero); | |
| 3160 else | |
| 3161 nda.resize (dim_vector (max_size, 1), elt_zero); | |
| 3162 | |
| 3163 dat = nda.fortran_vec (); | |
| 4944 | 3164 } |
| 3165 | |
| 7995 | 3166 if (do_NA_conv && __lo_ieee_is_old_NA (tmp)) |
| 3167 tmp = __lo_ieee_replace_old_NA (tmp); | |
| 3168 | |
| 5030 | 3169 dat[count++] = tmp; |
| 3170 | |
| 3171 elts_read++; | |
| 3172 } | |
| 3173 | |
|
7538
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John W. Eaton <jwe@octave.org>
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7433
diff
changeset
|
3174 int seek_status = 0; |
|
2c4b0cbda85a
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parents:
7433
diff
changeset
|
3175 |
| 5030 | 3176 if (skip != 0 && elts_read == block_size) |
| 3177 { | |
|
7538
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John W. Eaton <jwe@octave.org>
parents:
7433
diff
changeset
|
3178 seek_status = strm.seek (skip, SEEK_CUR); |
| 5030 | 3179 elts_read = 0; |
| 3180 } | |
| 3181 | |
|
7538
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John W. Eaton <jwe@octave.org>
parents:
7433
diff
changeset
|
3182 if (is.eof () || seek_status < 0) |
| 5030 | 3183 { |
| 3184 if (nr > 0) | |
| 4944 | 3185 { |
| 5030 | 3186 if (count > nr) |
| 4944 | 3187 { |
| 5030 | 3188 final_nr = nr; |
| 3189 final_nc = (count - 1) / nr + 1; | |
| 4944 | 3190 } |
| 3191 else | |
| 3192 { | |
| 3193 final_nr = count; | |
| 3194 final_nc = 1; | |
| 3195 } | |
| 3196 } | |
| 5030 | 3197 else |
| 3198 { | |
| 3199 final_nr = count; | |
| 3200 final_nc = 1; | |
| 3201 } | |
| 3202 | |
| 4944 | 3203 break; |
| 3204 } | |
| 3205 } | |
| 5030 | 3206 else if (is.eof ()) |
| 3207 break; | |
| 4944 | 3208 } |
| 3209 } | |
| 3210 | |
| 5030 | 3211 nda.resize (dim_vector (final_nr, final_nc), elt_zero); |
| 3212 | |
| 3213 retval = nda; | |
| 4944 | 3214 |
| 3215 return retval; | |
| 3216 } | |
| 3217 | |
| 3218 #define DO_READ_VAL_TEMPLATE(RET_T, READ_T) \ | |
| 3219 template octave_value \ | |
| 7995 | 3220 do_read<RET_T, READ_T> (octave_stream&, octave_idx_type, octave_idx_type, octave_idx_type, octave_idx_type, bool, bool, \ |
| 5275 | 3221 oct_mach_info::float_format, octave_idx_type&) |
| 4944 | 3222 |
| 5775 | 3223 // FIXME -- should we only have float if it is a different |
| 4944 | 3224 // size from double? |
| 3225 | |
| 3226 #define INSTANTIATE_DO_READ(VAL_T) \ | |
| 3227 DO_READ_VAL_TEMPLATE (VAL_T, octave_int8); \ | |
| 3228 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint8); \ | |
| 3229 DO_READ_VAL_TEMPLATE (VAL_T, octave_int16); \ | |
| 3230 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint16); \ | |
| 3231 DO_READ_VAL_TEMPLATE (VAL_T, octave_int32); \ | |
| 3232 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint32); \ | |
| 3233 DO_READ_VAL_TEMPLATE (VAL_T, octave_int64); \ | |
| 3234 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint64); \ | |
| 3235 DO_READ_VAL_TEMPLATE (VAL_T, float); \ | |
| 3236 DO_READ_VAL_TEMPLATE (VAL_T, double); \ | |
| 3237 DO_READ_VAL_TEMPLATE (VAL_T, char); \ | |
| 3238 DO_READ_VAL_TEMPLATE (VAL_T, signed char); \ | |
| 3239 DO_READ_VAL_TEMPLATE (VAL_T, unsigned char) | |
| 3240 | |
| 4970 | 3241 INSTANTIATE_DO_READ (int8NDArray); |
| 3242 INSTANTIATE_DO_READ (uint8NDArray); | |
| 3243 INSTANTIATE_DO_READ (int16NDArray); | |
| 3244 INSTANTIATE_DO_READ (uint16NDArray); | |
| 3245 INSTANTIATE_DO_READ (int32NDArray); | |
| 3246 INSTANTIATE_DO_READ (uint32NDArray); | |
| 3247 INSTANTIATE_DO_READ (int64NDArray); | |
| 3248 INSTANTIATE_DO_READ (uint64NDArray); | |
|
7789
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David Bateman <dbateman@free.fr>
parents:
7724
diff
changeset
|
3249 INSTANTIATE_DO_READ (FloatNDArray); |
| 4970 | 3250 INSTANTIATE_DO_READ (NDArray); |
| 3251 INSTANTIATE_DO_READ (charNDArray); | |
| 5780 | 3252 INSTANTIATE_DO_READ (boolNDArray); |
| 4944 | 3253 |
| 7995 | 3254 typedef octave_value (*read_fptr) (octave_stream&, octave_idx_type, octave_idx_type, octave_idx_type, octave_idx_type, bool, bool, |
| 5275 | 3255 oct_mach_info::float_format ffmt, octave_idx_type&); |
| 4944 | 3256 |
| 7433 | 3257 NO_INSTANTIATE_ARRAY_SORT (read_fptr); |
| 6708 | 3258 INSTANTIATE_ARRAY (read_fptr,); |
| 4944 | 3259 template class Array2<read_fptr>; |
| 3260 | |
| 3261 #define FILL_TABLE_ROW(R, VAL_T) \ | |
| 3262 read_fptr_table(R,oct_data_conv::dt_int8) = do_read<VAL_T, octave_int8>; \ | |
| 3263 read_fptr_table(R,oct_data_conv::dt_uint8) = do_read<VAL_T, octave_uint8>; \ | |
| 3264 read_fptr_table(R,oct_data_conv::dt_int16) = do_read<VAL_T, octave_int16>; \ | |
| 3265 read_fptr_table(R,oct_data_conv::dt_uint16) = do_read<VAL_T, octave_uint16>; \ | |
| 3266 read_fptr_table(R,oct_data_conv::dt_int32) = do_read<VAL_T, octave_int32>; \ | |
| 3267 read_fptr_table(R,oct_data_conv::dt_uint32) = do_read<VAL_T, octave_uint32>; \ | |
| 3268 read_fptr_table(R,oct_data_conv::dt_int64) = do_read<VAL_T, octave_int64>; \ | |
| 3269 read_fptr_table(R,oct_data_conv::dt_uint64) = do_read<VAL_T, octave_uint64>; \ | |
| 3270 read_fptr_table(R,oct_data_conv::dt_single) = do_read<VAL_T, float>; \ | |
| 3271 read_fptr_table(R,oct_data_conv::dt_double) = do_read<VAL_T, double>; \ | |
| 3272 read_fptr_table(R,oct_data_conv::dt_char) = do_read<VAL_T, char>; \ | |
| 3273 read_fptr_table(R,oct_data_conv::dt_schar) = do_read<VAL_T, signed char>; \ | |
| 4970 | 3274 read_fptr_table(R,oct_data_conv::dt_uchar) = do_read<VAL_T, unsigned char>; \ |
| 3275 read_fptr_table(R,oct_data_conv::dt_logical) = do_read<VAL_T, unsigned char> | |
| 4944 | 3276 |
| 3277 octave_value | |
| 5275 | 3278 octave_stream::read (const Array<double>& size, octave_idx_type block_size, |
| 4944 | 3279 oct_data_conv::data_type input_type, |
| 3280 oct_data_conv::data_type output_type, | |
| 5275 | 3281 octave_idx_type skip, oct_mach_info::float_format ffmt, |
| 3282 octave_idx_type& char_count) | |
| 4944 | 3283 { |
| 3284 static bool initialized = false; | |
| 3285 | |
| 3286 // Table function pointers for return types x read types. | |
| 3287 | |
| 4970 | 3288 static Array2<read_fptr> read_fptr_table (oct_data_conv::dt_unknown, 14, 0); |
| 4944 | 3289 |
| 3290 if (! initialized) | |
| 3291 { | |
| 3292 FILL_TABLE_ROW (oct_data_conv::dt_int8, int8NDArray); | |
| 3293 FILL_TABLE_ROW (oct_data_conv::dt_uint8, uint8NDArray); | |
| 3294 FILL_TABLE_ROW (oct_data_conv::dt_int16, int16NDArray); | |
| 3295 FILL_TABLE_ROW (oct_data_conv::dt_uint16, uint16NDArray); | |
| 3296 FILL_TABLE_ROW (oct_data_conv::dt_int32, int32NDArray); | |
| 3297 FILL_TABLE_ROW (oct_data_conv::dt_uint32, uint32NDArray); | |
| 3298 FILL_TABLE_ROW (oct_data_conv::dt_int64, int64NDArray); | |
| 3299 FILL_TABLE_ROW (oct_data_conv::dt_uint64, uint64NDArray); | |
|
7789
82be108cc558
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David Bateman <dbateman@free.fr>
parents:
7724
diff
changeset
|
3300 FILL_TABLE_ROW (oct_data_conv::dt_single, FloatNDArray); |
| 4944 | 3301 FILL_TABLE_ROW (oct_data_conv::dt_double, NDArray); |
| 3302 FILL_TABLE_ROW (oct_data_conv::dt_char, charNDArray); | |
| 3303 FILL_TABLE_ROW (oct_data_conv::dt_schar, charNDArray); | |
| 3304 FILL_TABLE_ROW (oct_data_conv::dt_uchar, charNDArray); | |
| 4970 | 3305 FILL_TABLE_ROW (oct_data_conv::dt_logical, boolNDArray); |
| 4944 | 3306 |
| 3307 initialized = true; | |
| 3308 } | |
| 3309 | |
| 3310 octave_value retval; | |
| 3311 | |
| 5659 | 3312 if (stream_ok ()) |
| 4944 | 3313 { |
| 5775 | 3314 // FIXME -- we may eventually want to make this extensible. |
| 3315 | |
| 3316 // FIXME -- we need a better way to ensure that this | |
| 4944 | 3317 // numbering stays consistent with the order of the elements in the |
| 3318 // data_type enum in the oct_data_conv class. | |
| 3319 | |
| 3320 char_count = 0; | |
| 3321 | |
| 5275 | 3322 octave_idx_type nr = -1; |
| 3323 octave_idx_type nc = -1; | |
| 4944 | 3324 |
| 3325 bool ignore; | |
| 3326 | |
| 3327 get_size (size, nr, nc, ignore, "fread"); | |
| 3328 | |
| 3329 if (! error_state) | |
| 3330 { | |
| 3331 if (nr == 0 || nc == 0) | |
| 3332 retval = Matrix (nr, nc); | |
| 3333 else | |
| 3334 { | |
| 3335 if (ffmt == oct_mach_info::flt_fmt_unknown) | |
| 3336 ffmt = float_format (); | |
| 3337 | |
| 3338 read_fptr fcn = read_fptr_table (output_type, input_type); | |
| 3339 | |
| 3340 bool do_float_fmt_conv = ((input_type == oct_data_conv::dt_double | |
| 3341 || input_type == oct_data_conv::dt_single) | |
| 3342 && ffmt != float_format ()); | |
| 3343 | |
| 7995 | 3344 bool do_NA_conv = (output_type == oct_data_conv::dt_double); |
| 3345 | |
| 4944 | 3346 if (fcn) |
| 3347 { | |
| 3348 retval = (*fcn) (*this, nr, nc, block_size, skip, | |
| 7995 | 3349 do_float_fmt_conv, do_NA_conv, |
| 3350 ffmt, char_count); | |
| 4944 | 3351 |
| 5775 | 3352 // FIXME -- kluge! |
| 4944 | 3353 |
| 3354 if (! error_state | |
| 3355 && (output_type == oct_data_conv::dt_char | |
| 3356 || output_type == oct_data_conv::dt_schar | |
| 3357 || output_type == oct_data_conv::dt_uchar)) | |
| 3358 retval = octave_value (retval.char_matrix_value (), true); | |
| 3359 } | |
| 3360 else | |
| 3361 error ("fread: unable to read and convert requested types"); | |
| 3362 } | |
| 3363 } | |
| 3364 else | |
| 3365 invalid_operation ("fread", "reading"); | |
| 3366 } | |
| 2117 | 3367 |
| 3368 return retval; | |
| 3369 } | |
| 3370 | |
| 5275 | 3371 octave_idx_type |
| 3372 octave_stream::write (const octave_value& data, octave_idx_type block_size, | |
| 3373 oct_data_conv::data_type output_type, octave_idx_type skip, | |
| 2317 | 3374 oct_mach_info::float_format flt_fmt) |
| 2117 | 3375 { |
| 5275 | 3376 octave_idx_type retval = -1; |
| 2117 | 3377 |
| 5659 | 3378 if (stream_ok ()) |
| 4944 | 3379 { |
| 3380 if (! error_state) | |
| 3381 { | |
| 3382 if (flt_fmt == oct_mach_info::flt_fmt_unknown) | |
| 3383 flt_fmt = float_format (); | |
| 3384 | |
| 5275 | 3385 octave_idx_type status = data.write (*this, block_size, output_type, |
| 4944 | 3386 skip, flt_fmt); |
| 3387 | |
| 3388 if (status < 0) | |
| 3389 error ("fwrite: write error"); | |
| 3390 else | |
| 3391 retval = status; | |
| 3392 } | |
| 3393 else | |
| 3394 invalid_operation ("fwrite", "writing"); | |
| 3395 } | |
| 2117 | 3396 |
| 3397 return retval; | |
| 3398 } | |
| 3399 | |
| 4944 | 3400 template <class T> |
| 3401 void | |
| 3402 write_int (std::ostream& os, bool swap, const T& val) | |
| 3403 { | |
| 3404 typename octave_type_traits<T>::val_type tmp = val.value (); | |
| 3405 | |
| 3406 if (swap) | |
| 3407 swap_bytes<sizeof (typename octave_type_traits<T>::val_type)> (&tmp); | |
| 3408 | |
| 3409 os.write (reinterpret_cast<const char *> (&tmp), | |
| 3410 sizeof (typename octave_type_traits<T>::val_type)); | |
| 3411 } | |
| 3412 | |
| 3413 template void write_int (std::ostream&, bool, const octave_int8&); | |
| 3414 template void write_int (std::ostream&, bool, const octave_uint8&); | |
| 3415 template void write_int (std::ostream&, bool, const octave_int16&); | |
| 3416 template void write_int (std::ostream&, bool, const octave_uint16&); | |
| 3417 template void write_int (std::ostream&, bool, const octave_int32&); | |
| 3418 template void write_int (std::ostream&, bool, const octave_uint32&); | |
| 3419 template void write_int (std::ostream&, bool, const octave_int64&); | |
| 3420 template void write_int (std::ostream&, bool, const octave_uint64&); | |
| 3421 | |
| 3422 template <class T> | |
| 3423 static inline bool | |
| 3424 do_write (std::ostream& os, const T& val, oct_data_conv::data_type output_type, | |
| 3425 oct_mach_info::float_format flt_fmt, bool swap, | |
| 3426 bool do_float_conversion) | |
| 3427 { | |
| 3428 bool retval = true; | |
| 3429 | |
| 3430 // For compatibility, Octave converts to the output type, then | |
| 3431 // writes. This means that truncation happens on the conversion. | |
| 3432 // For example, the following program prints 0: | |
| 3433 // | |
| 3434 // x = int8 (-1) | |
| 3435 // f = fopen ("foo.dat", "w"); | |
| 3436 // fwrite (f, x, "unsigned char"); | |
| 3437 // fclose (f); | |
| 3438 // f = fopen ("foo.dat", "r"); | |
| 3439 // y = fread (f, 1, "unsigned char"); | |
| 3440 // printf ("%d\n", y); | |
| 3441 | |
| 3442 switch (output_type) | |
| 3443 { | |
| 3444 case oct_data_conv::dt_char: | |
| 3445 case oct_data_conv::dt_schar: | |
| 3446 case oct_data_conv::dt_int8: | |
| 3447 write_int (os, swap, octave_int8 (val)); | |
| 3448 break; | |
| 3449 | |
| 3450 case oct_data_conv::dt_uchar: | |
| 3451 case oct_data_conv::dt_uint8: | |
| 3452 write_int (os, swap, octave_uint8 (val)); | |
| 3453 break; | |
| 3454 | |
| 3455 case oct_data_conv::dt_int16: | |
| 3456 write_int (os, swap, octave_int16 (val)); | |
| 3457 break; | |
| 3458 | |
| 3459 case oct_data_conv::dt_uint16: | |
| 3460 write_int (os, swap, octave_uint16 (val)); | |
| 3461 break; | |
| 3462 | |
| 3463 case oct_data_conv::dt_int32: | |
| 3464 write_int (os, swap, octave_int32 (val)); | |
| 3465 break; | |
| 3466 | |
| 3467 case oct_data_conv::dt_uint32: | |
| 3468 write_int (os, swap, octave_uint32 (val)); | |
| 3469 break; | |
| 3470 | |
| 3471 case oct_data_conv::dt_int64: | |
| 3472 write_int (os, swap, octave_int64 (val)); | |
| 3473 break; | |
| 3474 | |
| 3475 case oct_data_conv::dt_uint64: | |
| 3476 write_int (os, swap, octave_uint64 (val)); | |
| 3477 break; | |
| 3478 | |
| 3479 case oct_data_conv::dt_single: | |
| 3480 { | |
| 3481 float f = static_cast<float> (val); | |
| 3482 | |
| 3483 if (do_float_conversion) | |
| 3484 do_float_format_conversion (&f, 1, flt_fmt); | |
| 3485 | |
| 3486 os.write (reinterpret_cast<const char *> (&f), sizeof (float)); | |
| 3487 } | |
| 3488 break; | |
| 3489 | |
| 3490 case oct_data_conv::dt_double: | |
| 3491 { | |
| 3492 double d = static_cast<double> (val); | |
| 3493 if (do_float_conversion) | |
| 3494 do_double_format_conversion (&d, 1, flt_fmt); | |
| 3495 | |
| 3496 os.write (reinterpret_cast<const char *> (&d), sizeof (double)); | |
| 3497 } | |
| 3498 break; | |
| 3499 | |
| 3500 default: | |
| 3501 retval = false; | |
| 3502 (*current_liboctave_error_handler) | |
| 3503 ("write: invalid type specification"); | |
| 3504 break; | |
| 3505 } | |
| 3506 | |
| 3507 return retval; | |
| 3508 } | |
| 3509 | |
| 5887 | 3510 template bool |
| 3511 do_write (std::ostream&, const octave_int8&, oct_data_conv::data_type, | |
| 3512 oct_mach_info::float_format, bool, bool); | |
| 3513 | |
| 3514 template bool | |
| 3515 do_write (std::ostream&, const octave_uint8&, oct_data_conv::data_type, | |
| 3516 oct_mach_info::float_format, bool, bool); | |
| 3517 | |
| 3518 template bool | |
| 3519 do_write (std::ostream&, const octave_int16&, oct_data_conv::data_type, | |
| 3520 oct_mach_info::float_format, bool, bool); | |
| 3521 | |
| 3522 template bool | |
| 3523 do_write (std::ostream&, const octave_uint16&, oct_data_conv::data_type, | |
| 3524 oct_mach_info::float_format, bool, bool); | |
| 3525 | |
| 3526 template bool | |
| 3527 do_write (std::ostream&, const octave_int32&, oct_data_conv::data_type, | |
| 3528 oct_mach_info::float_format, bool, bool); | |
| 3529 | |
| 3530 template bool | |
| 3531 do_write (std::ostream&, const octave_uint32&, oct_data_conv::data_type, | |
| 3532 oct_mach_info::float_format, bool, bool); | |
| 3533 | |
| 3534 template bool | |
| 3535 do_write (std::ostream&, const octave_int64&, oct_data_conv::data_type, | |
| 3536 oct_mach_info::float_format, bool, bool); | |
| 3537 | |
| 3538 template bool | |
| 3539 do_write (std::ostream&, const octave_uint64&, oct_data_conv::data_type, | |
| 3540 oct_mach_info::float_format, bool, bool); | |
| 3541 | |
| 4944 | 3542 template <class T> |
| 5275 | 3543 octave_idx_type |
| 3544 octave_stream::write (const Array<T>& data, octave_idx_type block_size, | |
| 4944 | 3545 oct_data_conv::data_type output_type, |
| 5275 | 3546 octave_idx_type skip, oct_mach_info::float_format flt_fmt) |
| 4944 | 3547 { |
| 5275 | 3548 octave_idx_type retval = -1; |
| 4944 | 3549 |
| 3550 bool status = true; | |
| 3551 | |
| 5275 | 3552 octave_idx_type count = 0; |
| 4944 | 3553 |
| 3554 const T *d = data.data (); | |
| 3555 | |
| 5275 | 3556 octave_idx_type n = data.length (); |
| 4944 | 3557 |
| 3558 oct_mach_info::float_format native_flt_fmt | |
| 3559 = oct_mach_info::float_format (); | |
| 3560 | |
| 3561 bool do_float_conversion = (flt_fmt != native_flt_fmt); | |
| 3562 | |
| 5775 | 3563 // FIXME -- byte order for Cray? |
| 4944 | 3564 |
| 3565 bool swap = false; | |
| 3566 | |
| 3567 if (oct_mach_info::words_big_endian ()) | |
| 3568 swap = (flt_fmt == oct_mach_info::flt_fmt_ieee_little_endian | |
| 3569 || flt_fmt == oct_mach_info::flt_fmt_vax_g | |
| 3570 || flt_fmt == oct_mach_info::flt_fmt_vax_g); | |
| 3571 else | |
| 3572 swap = (flt_fmt == oct_mach_info::flt_fmt_ieee_big_endian); | |
| 3573 | |
| 5275 | 3574 for (octave_idx_type i = 0; i < n; i++) |
| 4944 | 3575 { |
| 3576 std::ostream *osp = output_stream (); | |
| 3577 | |
| 3578 if (osp) | |
| 3579 { | |
| 3580 std::ostream& os = *osp; | |
| 3581 | |
| 5254 | 3582 // It seems that Matlab writes zeros instead of actually |
| 3583 // seeking. Hmm... | |
| 3584 | |
| 4944 | 3585 if (skip != 0 && (i % block_size) == 0) |
| 5254 | 3586 { |
| 5775 | 3587 // FIXME -- probably should try to write larger |
| 5254 | 3588 // blocks... |
| 3589 | |
| 3590 unsigned char zero = 0; | |
| 3591 for (int j = 0; j < skip; j++) | |
| 3592 os.write (reinterpret_cast<const char *> (&zero), 1); | |
| 3593 } | |
| 4944 | 3594 |
| 3595 if (os) | |
| 3596 { | |
| 3597 status = do_write (os, d[i], output_type, flt_fmt, swap, | |
| 3598 do_float_conversion); | |
| 3599 | |
| 3600 if (os && status) | |
| 3601 count++; | |
| 3602 else | |
| 3603 break; | |
| 3604 } | |
| 3605 else | |
| 3606 { | |
| 3607 status = false; | |
| 3608 break; | |
| 3609 } | |
| 3610 } | |
| 3611 else | |
| 3612 { | |
| 3613 status = false; | |
| 3614 break; | |
| 3615 } | |
| 3616 } | |
| 3617 | |
| 3618 if (status) | |
| 3619 retval = count; | |
| 3620 | |
| 3621 return retval; | |
| 3622 } | |
| 3623 | |
| 5275 | 3624 template octave_idx_type |
| 3625 octave_stream::write (const Array<char>&, octave_idx_type, | |
| 4944 | 3626 oct_data_conv::data_type, |
| 5275 | 3627 octave_idx_type, oct_mach_info::float_format); |
| 3628 | |
| 3629 template octave_idx_type | |
| 3630 octave_stream::write (const Array<bool>&, octave_idx_type, | |
| 4970 | 3631 oct_data_conv::data_type, |
| 5275 | 3632 octave_idx_type, oct_mach_info::float_format); |
| 3633 | |
| 3634 template octave_idx_type | |
| 3635 octave_stream::write (const Array<double>&, octave_idx_type, | |
| 4944 | 3636 oct_data_conv::data_type, |
| 5275 | 3637 octave_idx_type, oct_mach_info::float_format); |
| 3638 | |
| 3639 template octave_idx_type | |
|
7789
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7724
diff
changeset
|
3640 octave_stream::write (const Array<float>&, octave_idx_type, |
|
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7724
diff
changeset
|
3641 oct_data_conv::data_type, |
|
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7724
diff
changeset
|
3642 octave_idx_type, oct_mach_info::float_format); |
|
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7724
diff
changeset
|
3643 |
|
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7724
diff
changeset
|
3644 template octave_idx_type |
| 5275 | 3645 octave_stream::write (const Array<octave_int8>&, octave_idx_type, |
| 4944 | 3646 oct_data_conv::data_type, |
| 5275 | 3647 octave_idx_type, oct_mach_info::float_format); |
| 3648 | |
| 3649 template octave_idx_type | |
| 3650 octave_stream::write (const Array<octave_uint8>&, octave_idx_type, | |
| 4944 | 3651 oct_data_conv::data_type, |
| 5275 | 3652 octave_idx_type, oct_mach_info::float_format); |
| 3653 | |
| 3654 template octave_idx_type | |
| 3655 octave_stream::write (const Array<octave_int16>&, octave_idx_type, | |
| 4944 | 3656 oct_data_conv::data_type, |
| 5275 | 3657 octave_idx_type, oct_mach_info::float_format); |
| 3658 | |
| 3659 template octave_idx_type | |
| 3660 octave_stream::write (const Array<octave_uint16>&, octave_idx_type, | |
| 4944 | 3661 oct_data_conv::data_type, |
| 5275 | 3662 octave_idx_type, oct_mach_info::float_format); |
| 3663 | |
| 3664 template octave_idx_type | |
| 3665 octave_stream::write (const Array<octave_int32>&, octave_idx_type, | |
| 4944 | 3666 oct_data_conv::data_type, |
| 5275 | 3667 octave_idx_type, oct_mach_info::float_format); |
| 3668 | |
| 3669 template octave_idx_type | |
| 3670 octave_stream::write (const Array<octave_uint32>&, octave_idx_type, | |
| 4944 | 3671 oct_data_conv::data_type, |
| 5275 | 3672 octave_idx_type, oct_mach_info::float_format); |
| 3673 | |
| 3674 template octave_idx_type | |
| 3675 octave_stream::write (const Array<octave_int64>&, octave_idx_type, | |
| 4944 | 3676 oct_data_conv::data_type, |
| 5275 | 3677 octave_idx_type, oct_mach_info::float_format); |
| 3678 | |
| 3679 template octave_idx_type | |
| 3680 octave_stream::write (const Array<octave_uint64>&, octave_idx_type, | |
| 4944 | 3681 oct_data_conv::data_type, |
| 5275 | 3682 octave_idx_type, oct_mach_info::float_format); |
| 4944 | 3683 |
| 2117 | 3684 octave_value |
| 3810 | 3685 octave_stream::scanf (const std::string& fmt, const Array<double>& size, |
| 5275 | 3686 octave_idx_type& count, const std::string& who) |
| 2117 | 3687 { |
| 3688 octave_value retval; | |
| 3689 | |
| 5659 | 3690 if (stream_ok ()) |
| 4468 | 3691 retval = rep->scanf (fmt, size, count, who); |
| 2117 | 3692 |
| 3693 return retval; | |
| 3694 } | |
| 3695 | |
| 5279 | 3696 octave_value |
| 3697 octave_stream::scanf (const octave_value& fmt, const Array<double>& size, | |
| 5299 | 3698 octave_idx_type& count, const std::string& who) |
| 5279 | 3699 { |
| 3700 octave_value retval = Matrix (); | |
| 3701 | |
| 3702 if (fmt.is_string ()) | |
| 3703 { | |
| 3704 std::string sfmt = fmt.string_value (); | |
| 3705 | |
| 3706 if (fmt.is_sq_string ()) | |
| 3707 sfmt = do_string_escapes (sfmt); | |
| 3708 | |
| 3709 retval = scanf (sfmt, size, count, who); | |
| 3710 } | |
| 3711 else | |
| 3712 { | |
| 3713 // Note that this is not ::error () ! | |
| 3714 | |
| 3715 error (who + ": format must be a string"); | |
| 3716 } | |
| 3717 | |
| 3718 return retval; | |
| 3719 } | |
| 3720 | |
| 2215 | 3721 octave_value_list |
| 4468 | 3722 octave_stream::oscanf (const std::string& fmt, const std::string& who) |
| 2215 | 3723 { |
| 3724 octave_value_list retval; | |
| 3725 | |
| 5659 | 3726 if (stream_ok ()) |
| 4468 | 3727 retval = rep->oscanf (fmt, who); |
| 2215 | 3728 |
| 3729 return retval; | |
| 3730 } | |
| 3731 | |
| 5279 | 3732 octave_value_list |
| 3733 octave_stream::oscanf (const octave_value& fmt, const std::string& who) | |
| 3734 { | |
| 3735 octave_value_list retval; | |
| 3736 | |
| 3737 if (fmt.is_string ()) | |
| 3738 { | |
| 3739 std::string sfmt = fmt.string_value (); | |
| 3740 | |
| 3741 if (fmt.is_sq_string ()) | |
| 3742 sfmt = do_string_escapes (sfmt); | |
| 3743 | |
| 3744 retval = oscanf (sfmt, who); | |
| 3745 } | |
| 3746 else | |
| 3747 { | |
| 3748 // Note that this is not ::error () ! | |
| 3749 | |
| 3750 error (who + ": format must be a string"); | |
| 3751 } | |
| 3752 | |
| 3753 return retval; | |
| 3754 } | |
| 3755 | |
| 2117 | 3756 int |
| 4468 | 3757 octave_stream::printf (const std::string& fmt, const octave_value_list& args, |
| 3758 const std::string& who) | |
| 2117 | 3759 { |
| 3760 int retval = -1; | |
| 3761 | |
| 5659 | 3762 if (stream_ok ()) |
| 4468 | 3763 retval = rep->printf (fmt, args, who); |
| 2117 | 3764 |
| 3765 return retval; | |
| 3766 } | |
| 3767 | |
| 3768 int | |
| 5279 | 3769 octave_stream::printf (const octave_value& fmt, const octave_value_list& args, |
| 3770 const std::string& who) | |
| 3771 { | |
| 3772 int retval = 0; | |
| 3773 | |
| 3774 if (fmt.is_string ()) | |
| 3775 { | |
| 3776 std::string sfmt = fmt.string_value (); | |
| 3777 | |
| 3778 if (fmt.is_sq_string ()) | |
| 3779 sfmt = do_string_escapes (sfmt); | |
| 3780 | |
| 3781 retval = printf (sfmt, args, who); | |
| 3782 } | |
| 3783 else | |
| 3784 { | |
| 3785 // Note that this is not ::error () ! | |
| 3786 | |
| 3787 error (who + ": format must be a string"); | |
| 3788 } | |
| 3789 | |
| 3790 return retval; | |
| 3791 } | |
| 3792 | |
| 3793 int | |
| 4468 | 3794 octave_stream::puts (const std::string& s, const std::string& who) |
| 2117 | 3795 { |
| 3796 int retval = -1; | |
| 3797 | |
| 5659 | 3798 if (stream_ok ()) |
| 4468 | 3799 retval = rep->puts (s, who); |
| 2117 | 3800 |
| 3801 return retval; | |
| 3802 } | |
| 3803 | |
| 5775 | 3804 // FIXME -- maybe this should work for string arrays too. |
| 2117 | 3805 |
| 3806 int | |
| 4468 | 3807 octave_stream::puts (const octave_value& tc_s, const std::string& who) |
| 2117 | 3808 { |
| 3809 int retval = -1; | |
| 3810 | |
| 3811 if (tc_s.is_string ()) | |
| 3812 { | |
| 3523 | 3813 std::string s = tc_s.string_value (); |
| 5279 | 3814 retval = puts (s, who); |
| 2117 | 3815 } |
| 3816 else | |
| 4468 | 3817 { |
| 3818 // Note that this is not ::error () ! | |
| 3819 | |
| 3820 error (who + ": argument must be a string"); | |
| 3821 } | |
| 2117 | 3822 |
| 3823 return retval; | |
| 3824 } | |
| 3825 | |
| 3826 bool | |
| 3827 octave_stream::eof (void) const | |
| 3828 { | |
| 3829 int retval = -1; | |
| 3830 | |
| 5659 | 3831 if (stream_ok ()) |
| 2117 | 3832 retval = rep->eof (); |
| 3833 | |
| 3834 return retval; | |
| 3835 } | |
| 3836 | |
| 3536 | 3837 std::string |
| 2435 | 3838 octave_stream::error (bool clear, int& err_num) |
| 2117 | 3839 { |
| 5649 | 3840 std::string retval = "invalid stream object"; |
| 3841 | |
| 5659 | 3842 if (stream_ok (false)) |
| 2435 | 3843 retval = rep->error (clear, err_num); |
| 2117 | 3844 |
| 3845 return retval; | |
| 3846 } | |
| 3847 | |
| 3536 | 3848 std::string |
| 3340 | 3849 octave_stream::name (void) const |
| 2117 | 3850 { |
| 3523 | 3851 std::string retval; |
| 2117 | 3852 |
| 5659 | 3853 if (stream_ok ()) |
| 2117 | 3854 retval = rep->name (); |
| 3855 | |
| 3856 return retval; | |
| 3857 } | |
| 3858 | |
| 3859 int | |
| 3340 | 3860 octave_stream::mode (void) const |
| 2117 | 3861 { |
| 3862 int retval = 0; | |
| 3863 | |
| 5659 | 3864 if (stream_ok ()) |
| 2117 | 3865 retval = rep->mode (); |
| 3866 | |
| 3867 return retval; | |
| 3868 } | |
| 3869 | |
| 2317 | 3870 oct_mach_info::float_format |
| 3340 | 3871 octave_stream::float_format (void) const |
| 2117 | 3872 { |
| 4574 | 3873 oct_mach_info::float_format retval = oct_mach_info::flt_fmt_unknown; |
| 2317 | 3874 |
| 5659 | 3875 if (stream_ok ()) |
| 2317 | 3876 retval = rep->float_format (); |
| 2117 | 3877 |
| 3878 return retval; | |
| 3879 } | |
| 3880 | |
| 3536 | 3881 std::string |
| 2117 | 3882 octave_stream::mode_as_string (int mode) |
| 3883 { | |
| 3523 | 3884 std::string retval = "???"; |
| 3775 | 3885 std::ios::openmode in_mode = static_cast<std::ios::openmode> (mode); |
| 3886 | |
| 3887 if (in_mode == std::ios::in) | |
| 3888 retval = "r"; | |
| 3889 else if (in_mode == std::ios::out | |
| 4078 | 3890 || in_mode == (std::ios::out | std::ios::trunc)) |
| 3775 | 3891 retval = "w"; |
| 4078 | 3892 else if (in_mode == (std::ios::out | std::ios::app)) |
| 3775 | 3893 retval = "a"; |
| 4078 | 3894 else if (in_mode == (std::ios::in | std::ios::out)) |
| 3775 | 3895 retval = "r+"; |
| 4078 | 3896 else if (in_mode == (std::ios::in | std::ios::out | std::ios::trunc)) |
| 3775 | 3897 retval = "w+"; |
| 4078 | 3898 else if (in_mode == (std::ios::in | std::ios::out | std::ios::ate)) |
| 3775 | 3899 retval = "a+"; |
| 4078 | 3900 else if (in_mode == (std::ios::in | std::ios::binary)) |
| 3775 | 3901 retval = "rb"; |
| 4078 | 3902 else if (in_mode == (std::ios::out | std::ios::binary) |
| 3903 || in_mode == (std::ios::out | std::ios::trunc | std::ios::binary)) | |
| 3775 | 3904 retval = "wb"; |
| 4078 | 3905 else if (in_mode == (std::ios::out | std::ios::app | std::ios::binary)) |
| 3775 | 3906 retval = "ab"; |
| 4078 | 3907 else if (in_mode == (std::ios::in | std::ios::out | std::ios::binary)) |
| 3775 | 3908 retval = "r+b"; |
| 4078 | 3909 else if (in_mode == (std::ios::in | std::ios::out | std::ios::trunc |
| 3910 | std::ios::binary)) | |
| 3775 | 3911 retval = "w+b"; |
| 4078 | 3912 else if (in_mode == (std::ios::in | std::ios::out | std::ios::ate |
| 3913 | std::ios::binary)) | |
| 3775 | 3914 retval = "a+b"; |
| 2117 | 3915 |
| 3916 return retval; | |
| 3917 } | |
| 3918 | |
| 3919 octave_stream_list *octave_stream_list::instance = 0; | |
| 3920 | |
| 2926 | 3921 bool |
| 3922 octave_stream_list::instance_ok (void) | |
| 3923 { | |
| 3924 bool retval = true; | |
| 3925 | |
| 3926 if (! instance) | |
| 3927 instance = new octave_stream_list (); | |
| 3928 | |
| 3929 if (! instance) | |
| 3930 { | |
| 3931 ::error ("unable to create stream list object!"); | |
| 3932 | |
| 3933 retval = false; | |
| 3934 } | |
| 3935 | |
| 3936 return retval; | |
| 3937 } | |
| 3938 | |
| 5353 | 3939 int |
| 6757 | 3940 octave_stream_list::insert (octave_stream& os) |
| 2926 | 3941 { |
| 5353 | 3942 return (instance_ok ()) ? instance->do_insert (os) : -1; |
| 2926 | 3943 } |
| 3944 | |
| 3340 | 3945 octave_stream |
| 3523 | 3946 octave_stream_list::lookup (int fid, const std::string& who) |
| 2926 | 3947 { |
| 3341 | 3948 return (instance_ok ()) ? instance->do_lookup (fid, who) : octave_stream (); |
| 2926 | 3949 } |
| 3950 | |
| 3340 | 3951 octave_stream |
| 3523 | 3952 octave_stream_list::lookup (const octave_value& fid, const std::string& who) |
| 2926 | 3953 { |
| 3341 | 3954 return (instance_ok ()) ? instance->do_lookup (fid, who) : octave_stream (); |
| 2926 | 3955 } |
| 3956 | |
| 3957 int | |
| 3523 | 3958 octave_stream_list::remove (int fid, const std::string& who) |
| 2926 | 3959 { |
| 3341 | 3960 return (instance_ok ()) ? instance->do_remove (fid, who) : -1; |
| 2926 | 3961 } |
| 3962 | |
| 3963 int | |
| 3523 | 3964 octave_stream_list::remove (const octave_value& fid, const std::string& who) |
| 2926 | 3965 { |
| 3341 | 3966 return (instance_ok ()) ? instance->do_remove (fid, who) : -1; |
| 2926 | 3967 } |
| 3968 | |
| 3969 void | |
| 3970 octave_stream_list::clear (void) | |
| 3971 { | |
| 3972 if (instance) | |
| 3973 instance->do_clear (); | |
| 3974 } | |
| 3975 | |
| 3976 string_vector | |
| 3977 octave_stream_list::get_info (int fid) | |
| 3978 { | |
| 3979 return (instance_ok ()) ? instance->do_get_info (fid) : string_vector (); | |
| 3980 } | |
| 3981 | |
| 3982 string_vector | |
| 3983 octave_stream_list::get_info (const octave_value& fid) | |
| 3984 { | |
| 3985 return (instance_ok ()) ? instance->do_get_info (fid) : string_vector (); | |
| 3986 } | |
| 3987 | |
| 3536 | 3988 std::string |
| 2926 | 3989 octave_stream_list::list_open_files (void) |
| 3990 { | |
| 3523 | 3991 return (instance_ok ()) ? instance->do_list_open_files () : std::string (); |
| 2926 | 3992 } |
| 3993 | |
| 3994 octave_value | |
| 3995 octave_stream_list::open_file_numbers (void) | |
| 3996 { | |
| 3997 return (instance_ok ()) | |
| 3998 ? instance->do_open_file_numbers () : octave_value (); | |
| 3999 } | |
| 4000 | |
| 4001 int | |
| 4002 octave_stream_list::get_file_number (const octave_value& fid) | |
| 4003 { | |
| 4004 return (instance_ok ()) ? instance->do_get_file_number (fid) : -1; | |
| 4005 } | |
| 4006 | |
| 5353 | 4007 int |
| 6757 | 4008 octave_stream_list::do_insert (octave_stream& os) |
| 2117 | 4009 { |
| 6757 | 4010 // Insert item with key corresponding to file-descriptor. |
| 4011 | |
| 4012 int stream_number; | |
| 4013 | |
| 4014 if ((stream_number = os.file_number ()) == -1) | |
| 4015 return stream_number; | |
| 4016 | |
| 4017 // Should we test for "(list.find (stream_number) != list.end ()) && | |
| 4018 // list[stream_number].is_open ()" and respond with "error | |
| 4019 // ("internal error: ...")"? It should not happen except for some | |
| 4020 // bug or if the user has opened a stream with an interpreted | |
| 4021 // command, but closed it directly with a system call in an | |
| 4022 // oct-file; then the kernel knows the fd is free, but Octave does | |
| 4023 // not know. If it happens, it should not do harm here to simply | |
| 4024 // overwrite this entry, although the wrong entry might have done | |
| 4025 // harm before. | |
| 4026 | |
| 4027 if (list.size () < list.max_size ()) | |
| 4028 list[stream_number] = os; | |
| 4029 else | |
| 2117 | 4030 { |
| 6757 | 4031 stream_number = -1; |
| 4032 error ("could not create file id"); | |
| 3340 | 4033 } |
| 2117 | 4034 |
| 5353 | 4035 return stream_number; |
| 6757 | 4036 |
| 2117 | 4037 } |
| 4038 | |
| 3341 | 4039 static void |
| 3523 | 4040 gripe_invalid_file_id (int fid, const std::string& who) |
| 3341 | 4041 { |
| 4042 if (who.empty ()) | |
| 4043 ::error ("invalid stream number = %d", fid); | |
| 4044 else | |
| 4045 ::error ("%s: invalid stream number = %d", who.c_str (), fid); | |
| 4046 } | |
| 4047 | |
| 3340 | 4048 octave_stream |
| 3523 | 4049 octave_stream_list::do_lookup (int fid, const std::string& who) const |
| 2117 | 4050 { |
| 3340 | 4051 octave_stream retval; |
| 2117 | 4052 |
| 6757 | 4053 if (fid >= 0) |
| 4054 { | |
| 4055 ostrl_map::const_iterator iter = list.find (fid); | |
| 4056 | |
| 4057 if (iter != list.end ()) | |
| 4058 retval = iter->second; | |
| 4059 else | |
| 4060 gripe_invalid_file_id (fid, who); | |
| 4061 } | |
| 3341 | 4062 else |
| 4063 gripe_invalid_file_id (fid, who); | |
| 2117 | 4064 |
| 4065 return retval; | |
| 4066 } | |
| 4067 | |
| 3340 | 4068 octave_stream |
| 3341 | 4069 octave_stream_list::do_lookup (const octave_value& fid, |
| 3523 | 4070 const std::string& who) const |
| 2117 | 4071 { |
| 3340 | 4072 octave_stream retval; |
| 2117 | 4073 |
| 4074 int i = get_file_number (fid); | |
| 4075 | |
| 4076 if (! error_state) | |
| 3341 | 4077 retval = do_lookup (i, who); |
| 2117 | 4078 |
| 4079 return retval; | |
| 4080 } | |
| 4081 | |
| 4082 int | |
| 3523 | 4083 octave_stream_list::do_remove (int fid, const std::string& who) |
| 2117 | 4084 { |
| 4085 int retval = -1; | |
| 4086 | |
| 3531 | 4087 // Can't remove stdin (std::cin), stdout (std::cout), or stderr |
| 4088 // (std::cerr). | |
| 2117 | 4089 |
| 6757 | 4090 if (fid > 2) |
| 2117 | 4091 { |
| 6757 | 4092 ostrl_map::iterator iter = list.find (fid); |
| 4093 | |
| 4094 if (iter != list.end ()) | |
| 2117 | 4095 { |
| 6757 | 4096 octave_stream os = iter->second; |
| 4097 | |
| 4098 if (os.is_valid ()) | |
| 4099 { | |
| 4100 os.close (); | |
| 4101 iter->second = octave_stream (); | |
| 4102 retval = 0; | |
| 4103 } | |
| 4104 else | |
| 4105 gripe_invalid_file_id (fid, who); | |
| 2117 | 4106 } |
| 3341 | 4107 else |
| 4108 gripe_invalid_file_id (fid, who); | |
| 2117 | 4109 } |
| 3341 | 4110 else |
| 4111 gripe_invalid_file_id (fid, who); | |
| 2117 | 4112 |
| 4113 return retval; | |
| 4114 } | |
| 4115 | |
| 4116 int | |
| 3523 | 4117 octave_stream_list::do_remove (const octave_value& fid, const std::string& who) |
| 2117 | 4118 { |
| 4119 int retval = -1; | |
| 4120 | |
| 6054 | 4121 if (fid.is_string () && fid.string_value () == "all") |
| 4122 { | |
| 6757 | 4123 for (ostrl_map::iterator p = list.begin (); p != list.end (); p++) |
| 6054 | 4124 { |
| 6757 | 4125 // Skip stdin, stdout, and stderr. |
| 4126 | |
| 4127 if (p->first > 2) | |
| 4128 { | |
| 4129 octave_stream os = p->second; | |
| 4130 | |
| 4131 if (os.is_valid ()) | |
| 4132 do_remove (p->first, who); | |
| 4133 } | |
| 6054 | 4134 } |
| 4135 | |
| 4136 retval = 0; | |
| 4137 } | |
| 4138 else | |
| 4139 { | |
| 4140 int i = get_file_number (fid); | |
| 4141 | |
| 4142 if (! error_state) | |
| 4143 retval = do_remove (i, who); | |
| 4144 } | |
| 2117 | 4145 |
| 4146 return retval; | |
| 4147 } | |
| 4148 | |
| 4149 void | |
| 4150 octave_stream_list::do_clear (void) | |
| 4151 { | |
| 4152 // Do flush stdout and stderr. | |
| 4153 | |
| 6757 | 4154 list[0].flush (); |
| 4155 list[1].flush (); | |
| 2117 | 4156 |
| 4157 // But don't delete them or stdin. | |
| 4158 | |
| 6757 | 4159 for (ostrl_map::iterator p = list.begin (); p != list.end (); p++) |
| 4160 { | |
| 4161 // Skip stdin, stdout, and stderr. | |
| 4162 | |
| 4163 if (p->first > 2) | |
| 4164 p->second = octave_stream (); | |
| 4165 } | |
| 2117 | 4166 } |
| 4167 | |
| 4168 string_vector | |
| 4169 octave_stream_list::do_get_info (int fid) const | |
| 4170 { | |
| 4171 string_vector retval; | |
| 4172 | |
| 3340 | 4173 octave_stream os = do_lookup (fid); |
| 2117 | 4174 |
| 3341 | 4175 if (os.is_valid ()) |
| 2117 | 4176 { |
| 4177 retval.resize (3); | |
| 4178 | |
| 3340 | 4179 retval(0) = os.name (); |
| 4180 retval(1) = octave_stream::mode_as_string (os.mode ()); | |
| 4181 retval(2) = oct_mach_info::float_format_as_string (os.float_format ()); | |
| 2117 | 4182 } |
| 4183 else | |
| 3341 | 4184 ::error ("invalid file id = %d", fid); |
| 2117 | 4185 |
| 4186 return retval; | |
| 4187 } | |
| 4188 | |
| 4189 string_vector | |
| 4190 octave_stream_list::do_get_info (const octave_value& fid) const | |
| 4191 { | |
| 4192 string_vector retval; | |
| 4193 | |
| 4194 int conv_err = 0; | |
| 4195 | |
| 4196 int int_fid = convert_to_valid_int (fid, conv_err); | |
| 4197 | |
| 4198 if (! conv_err) | |
| 4199 retval = do_get_info (int_fid); | |
| 4200 else | |
| 2915 | 4201 ::error ("file id must be a file object or integer value"); |
| 2117 | 4202 |
| 4203 return retval; | |
| 4204 } | |
| 4205 | |
| 3536 | 4206 std::string |
| 2117 | 4207 octave_stream_list::do_list_open_files (void) const |
| 4208 { | |
| 3523 | 4209 std::string retval; |
| 2117 | 4210 |
| 5765 | 4211 std::ostringstream buf; |
| 2117 | 4212 |
| 4213 buf << "\n" | |
| 4214 << " number mode arch name\n" | |
| 4215 << " ------ ---- ---- ----\n"; | |
| 4216 | |
| 6757 | 4217 for (ostrl_map::const_iterator p = list.begin (); p != list.end (); p++) |
| 2117 | 4218 { |
| 6757 | 4219 octave_stream os = p->second; |
| 2117 | 4220 |
| 4326 | 4221 buf << " " |
| 4222 << std::setiosflags (std::ios::right) | |
| 6757 | 4223 << std::setw (4) << p->first << " " |
| 4326 | 4224 << std::setiosflags (std::ios::left) |
| 4225 << std::setw (3) | |
| 4226 << octave_stream::mode_as_string (os.mode ()) | |
| 4227 << " " | |
| 4228 << std::setw (9) | |
| 4229 << oct_mach_info::float_format_as_string (os.float_format ()) | |
| 4230 << " " | |
| 4231 << os.name () << "\n"; | |
| 2117 | 4232 } |
| 4233 | |
| 5765 | 4234 buf << "\n"; |
| 4235 | |
| 4236 retval = buf.str (); | |
| 2117 | 4237 |
| 4238 return retval; | |
| 4239 } | |
| 4240 | |
| 4241 octave_value | |
| 4242 octave_stream_list::do_open_file_numbers (void) const | |
| 4243 { | |
| 6757 | 4244 Matrix retval (1, list.size (), 0.0); |
| 2117 | 4245 |
| 4246 int num_open = 0; | |
| 4247 | |
| 6757 | 4248 for (ostrl_map::const_iterator p = list.begin (); p != list.end (); p++) |
| 2117 | 4249 { |
| 6757 | 4250 // Skip stdin, stdout, and stderr. |
| 4251 | |
| 4252 if (p->first > 2 && p->second) | |
| 4253 retval(0,num_open++) = p->first; | |
| 2117 | 4254 } |
| 4255 | |
| 4256 retval.resize ((num_open > 0), num_open); | |
| 4257 | |
| 4258 return retval; | |
| 4259 } | |
| 4260 | |
| 4261 int | |
| 2609 | 4262 octave_stream_list::do_get_file_number (const octave_value& fid) const |
| 2117 | 4263 { |
| 4264 int retval = -1; | |
| 4265 | |
| 4266 if (fid.is_string ()) | |
| 4267 { | |
| 3523 | 4268 std::string nm = fid.string_value (); |
| 2117 | 4269 |
| 6757 | 4270 for (ostrl_map::const_iterator p = list.begin (); p != list.end (); p++) |
| 2117 | 4271 { |
| 6757 | 4272 // stdin (std::cin), stdout (std::cout), and stderr (std::cerr) |
| 4273 // are unnamed. | |
| 4274 | |
| 4275 if (p->first > 2) | |
| 2117 | 4276 { |
| 6757 | 4277 octave_stream os = p->second; |
| 4278 | |
| 4279 if (os && os.name () == nm) | |
| 4280 { | |
| 4281 retval = p->first; | |
| 4282 break; | |
| 4283 } | |
| 2117 | 4284 } |
| 4285 } | |
| 4286 } | |
| 4287 else | |
| 4288 { | |
| 4289 int conv_err = 0; | |
| 4290 | |
| 4291 int int_fid = convert_to_valid_int (fid, conv_err); | |
| 4292 | |
| 4293 if (conv_err) | |
| 3523 | 4294 ::error ("file id must be a file object, std::string, or integer value"); |
| 2117 | 4295 else |
| 4296 retval = int_fid; | |
| 4297 } | |
| 4298 | |
| 4299 return retval; | |
| 4300 } | |
| 4301 | |
| 4302 /* | |
| 4303 ;;; Local Variables: *** | |
| 4304 ;;; mode: C++ *** | |
| 4305 ;;; End: *** | |
| 4306 */ |