Mercurial > octave-nkf
annotate src/oct-stream.cc @ 7538:2c4b0cbda85a
oct-stream.cc (do_read): stop reading if seek fails
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Wed, 27 Feb 2008 22:47:58 -0500 |
| parents | 402168152bb9 |
| children | fa41af732801 |
| 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> |
| 2215 | 29 #include <cstring> |
| 30 | |
| 3503 | 31 #include <iomanip> |
| 3559 | 32 #include <fstream> |
| 5765 | 33 #include <sstream> |
| 3535 | 34 #include <string> |
| 2117 | 35 |
| 4944 | 36 #include <Array.h> |
| 37 #include <Array2.h> | |
| 38 #include <Array3.h> | |
| 39 | |
| 40 #include <Array.cc> | |
| 41 | |
| 42 #include "byte-swap.h" | |
| 2117 | 43 #include "lo-ieee.h" |
| 44 #include "lo-mappers.h" | |
| 45 #include "lo-utils.h" | |
| 46 #include "str-vec.h" | |
| 4153 | 47 #include "quit.h" |
| 2117 | 48 |
| 49 #include "error.h" | |
| 7352 | 50 #include "gripes.h" |
| 3342 | 51 #include "input.h" |
| 3775 | 52 #include "oct-stdstrm.h" |
| 2117 | 53 #include "oct-stream.h" |
| 2877 | 54 #include "oct-obj.h" |
| 2117 | 55 #include "utils.h" |
| 56 | |
| 57 // Possible values for conv_err: | |
| 58 // | |
| 59 // 1 : not a real scalar | |
| 2902 | 60 // 2 : value is NaN |
| 61 // 3 : value is not an integer | |
| 2117 | 62 |
| 63 static int | |
| 64 convert_to_valid_int (const octave_value& tc, int& conv_err) | |
| 65 { | |
| 66 int retval = 0; | |
| 67 | |
| 68 conv_err = 0; | |
| 69 | |
| 2902 | 70 double dval = tc.double_value (); |
| 71 | |
| 72 if (! error_state) | |
| 2117 | 73 { |
| 5389 | 74 if (! lo_ieee_isnan (dval)) |
| 2117 | 75 { |
| 2902 | 76 int ival = NINT (dval); |
| 77 | |
| 78 if (ival == dval) | |
| 79 retval = ival; | |
| 2117 | 80 else |
| 81 conv_err = 3; | |
| 82 } | |
| 83 else | |
| 84 conv_err = 2; | |
| 85 } | |
| 86 else | |
| 87 conv_err = 1; | |
| 88 | |
| 89 return retval; | |
| 90 } | |
| 91 | |
| 92 static int | |
| 4468 | 93 get_size (double d, const std::string& who) |
| 2117 | 94 { |
| 95 int retval = -1; | |
| 96 | |
| 5389 | 97 if (! lo_ieee_isnan (d)) |
| 2117 | 98 { |
| 99 if (! xisinf (d)) | |
| 100 { | |
| 3268 | 101 if (d >= 0.0) |
| 2117 | 102 retval = NINT (d); |
| 103 else | |
| 104 ::error ("%s: negative value invalid as size specification", | |
| 4468 | 105 who.c_str ()); |
| 2117 | 106 } |
| 107 else | |
| 108 retval = -1; | |
| 109 } | |
| 110 else | |
| 4468 | 111 ::error ("%s: NaN is invalid as size specification", who.c_str ()); |
| 2117 | 112 |
| 113 return retval; | |
| 114 } | |
| 115 | |
| 116 static void | |
| 5275 | 117 get_size (const Array<double>& size, octave_idx_type& nr, octave_idx_type& nc, bool& one_elt_size_spec, |
| 4468 | 118 const std::string& who) |
| 2117 | 119 { |
| 120 nr = -1; | |
| 121 nc = -1; | |
| 122 | |
| 3268 | 123 one_elt_size_spec = false; |
| 124 | |
| 2117 | 125 double dnr = -1.0; |
| 126 double dnc = -1.0; | |
| 127 | |
| 5275 | 128 octave_idx_type sz_len = size.length (); |
| 3810 | 129 |
| 130 if (sz_len == 1) | |
| 2601 | 131 { |
| 3268 | 132 one_elt_size_spec = true; |
| 133 | |
| 3810 | 134 dnr = size (0); |
| 4293 | 135 |
| 136 dnc = (dnr == 0.0) ? 0.0 : 1.0; | |
| 2601 | 137 } |
| 3810 | 138 else if (sz_len == 2) |
| 2117 | 139 { |
| 3810 | 140 dnr = size (0); |
| 141 | |
| 142 if (! xisinf (dnr)) | |
| 143 dnc = size (1); | |
| 144 else | |
| 4468 | 145 ::error ("%s: invalid size specification", who.c_str ()); |
| 2117 | 146 } |
| 147 else | |
| 4468 | 148 ::error ("%s: invalid size specification", who.c_str ()); |
| 2117 | 149 |
| 150 if (! error_state) | |
| 151 { | |
| 4468 | 152 nr = get_size (dnr, who); |
| 2117 | 153 |
| 3268 | 154 if (! error_state && dnc >= 0.0) |
| 4468 | 155 nc = get_size (dnc, who); |
| 2117 | 156 } |
| 157 } | |
| 158 | |
| 3523 | 159 scanf_format_list::scanf_format_list (const std::string& s) |
| 2117 | 160 : nconv (0), curr_idx (0), list (16), buf (0) |
| 161 { | |
| 162 int num_elts = 0; | |
| 163 | |
| 164 int n = s.length (); | |
| 165 | |
| 166 int i = 0; | |
| 167 | |
| 2215 | 168 int width = 0; |
| 2117 | 169 bool discard = false; |
| 170 char modifier = '\0'; | |
| 171 char type = '\0'; | |
| 172 | |
| 173 bool have_more = true; | |
| 174 | |
| 175 while (i < n) | |
| 176 { | |
| 177 have_more = true; | |
| 178 | |
| 179 if (! buf) | |
| 5765 | 180 buf = new std::ostringstream (); |
| 2117 | 181 |
| 182 if (s[i] == '%') | |
| 183 { | |
| 3483 | 184 // Process percent-escape conversion type. |
| 185 | |
| 2215 | 186 process_conversion (s, i, n, width, discard, type, modifier, |
| 187 num_elts); | |
| 2117 | 188 have_more = (buf != 0); |
| 189 } | |
| 3483 | 190 else if (isspace (s[i])) |
| 2117 | 191 { |
| 3483 | 192 type = scanf_format_elt::whitespace_conversion; |
| 193 | |
| 2215 | 194 width = 0; |
| 2117 | 195 discard = false; |
| 196 modifier = '\0'; | |
| 3483 | 197 *buf << " "; |
| 198 | |
| 199 while (++i < n && isspace (s[i])) | |
| 200 /* skip whitespace */; | |
| 201 | |
| 202 add_elt_to_list (width, discard, type, modifier, num_elts); | |
| 203 | |
| 204 have_more = false; | |
| 205 } | |
| 206 else | |
| 207 { | |
| 208 type = scanf_format_elt::literal_conversion; | |
| 209 | |
| 210 width = 0; | |
| 211 discard = false; | |
| 212 modifier = '\0'; | |
| 213 | |
| 214 while (i < n && ! isspace (s[i]) && s[i] != '%') | |
| 215 *buf << s[i++]; | |
| 216 | |
| 217 add_elt_to_list (width, discard, type, modifier, num_elts); | |
| 218 | |
| 219 have_more = false; | |
| 2117 | 220 } |
| 221 | |
| 222 if (nconv < 0) | |
| 223 { | |
| 224 have_more = false; | |
| 225 break; | |
| 226 } | |
| 227 } | |
| 228 | |
| 229 if (have_more) | |
| 2215 | 230 add_elt_to_list (width, discard, type, modifier, num_elts); |
| 2117 | 231 |
| 232 list.resize (num_elts); | |
| 233 | |
| 234 delete buf; | |
| 235 } | |
| 236 | |
| 237 scanf_format_list::~scanf_format_list (void) | |
| 238 { | |
| 5275 | 239 octave_idx_type n = list.length (); |
| 240 | |
| 241 for (octave_idx_type i = 0; i < n; i++) | |
| 2117 | 242 { |
| 3340 | 243 scanf_format_elt *elt = list(i); |
| 2117 | 244 delete elt; |
| 245 } | |
| 246 } | |
| 247 | |
| 248 void | |
| 2215 | 249 scanf_format_list::add_elt_to_list (int width, bool discard, char type, |
| 3483 | 250 char modifier, int& num_elts, |
| 3523 | 251 const std::string& char_class) |
| 2117 | 252 { |
| 253 if (buf) | |
| 254 { | |
| 5765 | 255 std::string text = buf->str (); |
| 4051 | 256 |
| 257 if (! text.empty ()) | |
| 2117 | 258 { |
| 4051 | 259 scanf_format_elt *elt |
| 260 = new scanf_format_elt (text.c_str (), width, discard, type, | |
| 261 modifier, char_class); | |
| 262 | |
| 263 if (num_elts == list.length ()) | |
| 264 list.resize (2 * num_elts); | |
| 265 | |
| 266 list(num_elts++) = elt; | |
| 2117 | 267 } |
| 268 | |
| 269 delete buf; | |
| 270 buf = 0; | |
| 271 } | |
| 272 } | |
| 273 | |
| 3535 | 274 static std::string |
| 3523 | 275 expand_char_class (const std::string& s) |
| 3483 | 276 { |
| 3523 | 277 std::string retval; |
| 3483 | 278 |
| 279 size_t len = s.length (); | |
| 280 | |
| 281 size_t i = 0; | |
| 282 | |
| 283 while (i < len) | |
| 284 { | |
| 285 unsigned char c = s[i++]; | |
| 286 | |
| 287 if (c == '-' && i > 1 && i < len | |
| 5760 | 288 && static_cast<unsigned char> (s[i-2]) <= static_cast<unsigned char> (s[i])) |
| 3483 | 289 { |
| 290 // Add all characters from the range except the first (we | |
| 291 // already added it below). | |
| 292 | |
| 293 for (c = s[i-2]+1; c < s[i]; c++) | |
| 294 retval += c; | |
| 295 } | |
| 296 else | |
| 297 { | |
| 298 // Add the character to the class. Only add '-' if it is | |
| 299 // the last character in the class. | |
| 300 | |
| 301 if (c != '-' || i == len) | |
| 302 retval += c; | |
| 303 } | |
| 304 } | |
| 305 | |
| 306 return retval; | |
| 307 } | |
| 308 | |
| 2117 | 309 void |
| 3523 | 310 scanf_format_list::process_conversion (const std::string& s, int& i, int n, |
| 2215 | 311 int& width, bool& discard, char& type, |
| 2117 | 312 char& modifier, int& num_elts) |
| 313 { | |
| 2215 | 314 width = 0; |
| 2117 | 315 discard = false; |
| 316 modifier = '\0'; | |
| 317 type = '\0'; | |
| 318 | |
| 319 *buf << s[i++]; | |
| 320 | |
| 321 bool have_width = false; | |
| 322 | |
| 323 while (i < n) | |
| 324 { | |
| 325 switch (s[i]) | |
| 326 { | |
| 327 case '*': | |
| 328 if (discard) | |
| 329 nconv = -1; | |
| 330 else | |
| 331 { | |
| 332 discard = true; | |
| 333 *buf << s[i++]; | |
| 334 } | |
| 335 break; | |
| 336 | |
| 337 case '0': case '1': case '2': case '3': case '4': | |
| 338 case '5': case '6': case '7': case '8': case '9': | |
| 339 if (have_width) | |
| 340 nconv = -1; | |
| 341 else | |
| 342 { | |
| 2215 | 343 char c = s[i++]; |
| 344 width = width * 10 + c - '0'; | |
| 2117 | 345 have_width = true; |
| 2215 | 346 *buf << c; |
| 2117 | 347 while (i < n && isdigit (s[i])) |
| 2215 | 348 { |
| 349 c = s[i++]; | |
| 350 width = width * 10 + c - '0'; | |
| 351 *buf << c; | |
| 352 } | |
| 2117 | 353 } |
| 354 break; | |
| 355 | |
| 356 case 'h': case 'l': case 'L': | |
| 357 if (modifier != '\0') | |
| 358 nconv = -1; | |
| 359 else | |
| 2663 | 360 modifier = s[i++]; |
| 2117 | 361 break; |
| 362 | |
| 363 case 'd': case 'i': case 'o': case 'u': case 'x': | |
| 364 if (modifier == 'L') | |
| 365 { | |
| 366 nconv = -1; | |
| 367 break; | |
| 368 } | |
| 369 goto fini; | |
| 370 | |
| 371 case 'e': case 'f': case 'g': | |
| 372 if (modifier == 'h') | |
| 373 { | |
| 374 nconv = -1; | |
| 375 break; | |
| 376 } | |
| 2663 | 377 |
| 378 // No float or long double conversions, thanks. | |
| 379 *buf << 'l'; | |
| 380 | |
| 2117 | 381 goto fini; |
| 382 | |
| 383 case 'c': case 's': case 'p': case '%': case '[': | |
| 384 if (modifier != '\0') | |
| 385 { | |
| 386 nconv = -1; | |
| 387 break; | |
| 388 } | |
| 389 goto fini; | |
| 390 | |
| 391 fini: | |
| 392 { | |
| 2215 | 393 if (finish_conversion (s, i, n, width, discard, type, |
| 2117 | 394 modifier, num_elts) == 0) |
| 395 return; | |
| 396 } | |
| 397 break; | |
| 398 | |
| 399 default: | |
| 400 nconv = -1; | |
| 401 break; | |
| 402 } | |
| 403 | |
| 404 if (nconv < 0) | |
| 405 break; | |
| 406 } | |
| 407 | |
| 408 nconv = -1; | |
| 409 } | |
| 410 | |
| 411 int | |
| 3523 | 412 scanf_format_list::finish_conversion (const std::string& s, int& i, int n, |
| 2215 | 413 int& width, bool discard, char& type, |
| 2117 | 414 char modifier, int& num_elts) |
| 415 { | |
| 416 int retval = 0; | |
| 417 | |
| 3523 | 418 std::string char_class; |
| 3483 | 419 |
| 3640 | 420 int beg_idx = -1; |
| 421 int end_idx = -1; | |
| 422 | |
| 2117 | 423 if (s[i] == '%') |
| 3640 | 424 { |
| 425 type = '%'; | |
| 426 *buf << s[i++]; | |
| 427 } | |
| 2117 | 428 else |
| 429 { | |
| 430 type = s[i]; | |
| 431 | |
| 432 if (s[i] == '[') | |
| 433 { | |
| 434 *buf << s[i++]; | |
| 435 | |
| 436 if (i < n) | |
| 437 { | |
| 3483 | 438 beg_idx = i; |
| 439 | |
| 2117 | 440 if (s[i] == '^') |
| 441 { | |
| 442 type = '^'; | |
| 443 *buf << s[i++]; | |
| 3483 | 444 |
| 445 if (i < n) | |
| 446 { | |
| 447 beg_idx = i; | |
| 448 | |
| 449 if (s[i] == ']') | |
| 450 *buf << s[i++]; | |
| 451 } | |
| 2117 | 452 } |
| 453 else if (s[i] == ']') | |
| 454 *buf << s[i++]; | |
| 455 } | |
| 456 | |
| 457 while (i < n && s[i] != ']') | |
| 458 *buf << s[i++]; | |
| 459 | |
| 460 if (i < n && s[i] == ']') | |
| 3483 | 461 { |
| 462 end_idx = i-1; | |
| 463 *buf << s[i++]; | |
| 464 } | |
| 2117 | 465 |
| 466 if (s[i-1] != ']') | |
| 467 retval = nconv = -1; | |
| 468 } | |
| 469 else | |
| 2215 | 470 *buf << s[i++]; |
| 3640 | 471 } |
| 472 | |
| 473 nconv++; | |
| 474 | |
| 475 if (nconv > 0) | |
| 476 { | |
| 477 if (beg_idx >= 0 && end_idx >= 0) | |
| 478 char_class = expand_char_class (s.substr (beg_idx, | |
| 479 end_idx - beg_idx + 1)); | |
| 480 | |
| 481 add_elt_to_list (width, discard, type, modifier, num_elts, char_class); | |
| 2117 | 482 } |
| 483 | |
| 484 return retval; | |
| 485 } | |
| 486 | |
| 487 void | |
| 488 scanf_format_list::printme (void) const | |
| 489 { | |
| 490 int n = list.length (); | |
| 491 | |
| 492 for (int i = 0; i < n; i++) | |
| 493 { | |
| 3340 | 494 scanf_format_elt *elt = list(i); |
| 2117 | 495 |
| 3531 | 496 std::cerr |
| 497 << "width: " << elt->width << "\n" | |
| 498 << "discard: " << elt->discard << "\n" | |
| 499 << "type: "; | |
| 3483 | 500 |
| 501 if (elt->type == scanf_format_elt::literal_conversion) | |
| 3531 | 502 std::cerr << "literal text\n"; |
| 3483 | 503 else if (elt->type == scanf_format_elt::whitespace_conversion) |
| 3531 | 504 std::cerr << "whitespace\n"; |
| 3483 | 505 else |
| 3531 | 506 std::cerr << elt->type << "\n"; |
| 507 | |
| 508 std::cerr | |
| 509 << "modifier: " << elt->modifier << "\n" | |
| 510 << "char_class: `" << undo_string_escapes (elt->char_class) << "'\n" | |
| 511 << "text: `" << undo_string_escapes (elt->text) << "'\n\n"; | |
| 2117 | 512 } |
| 513 } | |
| 514 | |
| 515 bool | |
| 516 scanf_format_list::all_character_conversions (void) | |
| 517 { | |
| 518 int n = list.length (); | |
| 519 | |
| 520 if (n > 0) | |
| 521 { | |
| 522 for (int i = 0; i < n; i++) | |
| 523 { | |
| 3340 | 524 scanf_format_elt *elt = list(i); |
| 2117 | 525 |
| 526 switch (elt->type) | |
| 527 { | |
| 3483 | 528 case 'c': case 's': case '%': case '[': case '^': |
| 529 case scanf_format_elt::literal_conversion: | |
| 530 case scanf_format_elt::whitespace_conversion: | |
| 2117 | 531 break; |
| 532 | |
| 533 default: | |
| 534 return false; | |
| 535 break; | |
| 536 } | |
| 537 } | |
| 538 | |
| 539 return true; | |
| 540 } | |
| 541 else | |
| 542 return false; | |
| 543 } | |
| 544 | |
| 545 bool | |
| 546 scanf_format_list::all_numeric_conversions (void) | |
| 547 { | |
| 548 int n = list.length (); | |
| 549 | |
| 550 if (n > 0) | |
| 551 { | |
| 552 for (int i = 0; i < n; i++) | |
| 553 { | |
| 3340 | 554 scanf_format_elt *elt = list(i); |
| 2117 | 555 |
| 556 switch (elt->type) | |
| 557 { | |
| 558 case 'd': case 'i': case 'o': case 'u': case 'x': | |
| 559 case 'e': case 'f': case 'g': | |
| 560 break; | |
| 561 | |
| 562 default: | |
| 563 return false; | |
| 564 break; | |
| 565 } | |
| 566 } | |
| 567 | |
| 568 return true; | |
| 569 } | |
| 570 else | |
| 571 return false; | |
| 572 } | |
| 573 | |
| 574 // Ugh again. | |
| 575 | |
| 3523 | 576 printf_format_list::printf_format_list (const std::string& s) |
| 2117 | 577 : nconv (0), curr_idx (0), list (16), buf (0) |
| 578 { | |
| 579 int num_elts = 0; | |
| 580 | |
| 581 int n = s.length (); | |
| 582 | |
| 583 int i = 0; | |
| 584 | |
| 585 int args = 0; | |
| 3643 | 586 std::string flags; |
| 3640 | 587 int fw = 0; |
| 588 int prec = 0; | |
| 2117 | 589 char modifier = '\0'; |
| 590 char type = '\0'; | |
| 591 | |
| 592 bool have_more = true; | |
| 3640 | 593 bool empty_buf = true; |
| 2117 | 594 |
| 4223 | 595 if (n == 0) |
| 2117 | 596 { |
| 4223 | 597 printf_format_elt *elt |
| 598 = new printf_format_elt ("", args, fw, prec, flags, type, modifier); | |
| 599 | |
| 600 list(num_elts++) = elt; | |
| 601 | |
| 602 list.resize (num_elts); | |
| 603 } | |
| 604 else | |
| 605 { | |
| 606 while (i < n) | |
| 3640 | 607 { |
| 4223 | 608 have_more = true; |
| 609 | |
| 610 if (! buf) | |
| 611 { | |
| 5765 | 612 buf = new std::ostringstream (); |
| 4223 | 613 empty_buf = true; |
| 614 } | |
| 615 | |
| 616 switch (s[i]) | |
| 617 { | |
| 618 case '%': | |
| 3640 | 619 { |
| 4223 | 620 if (empty_buf) |
| 621 { | |
| 622 process_conversion (s, i, n, args, flags, fw, prec, | |
| 623 type, modifier, num_elts); | |
| 624 | |
| 625 have_more = (buf != 0); | |
| 626 } | |
| 627 else | |
| 628 add_elt_to_list (args, flags, fw, prec, type, modifier, | |
| 629 num_elts); | |
| 3640 | 630 } |
| 4223 | 631 break; |
| 632 | |
| 633 default: | |
| 634 { | |
| 635 args = 0; | |
| 636 flags = ""; | |
| 637 fw = 0; | |
| 638 prec = 0; | |
| 639 modifier = '\0'; | |
| 640 type = '\0'; | |
| 641 *buf << s[i++]; | |
| 642 empty_buf = false; | |
| 643 } | |
| 644 break; | |
| 645 } | |
| 646 | |
| 647 if (nconv < 0) | |
| 648 { | |
| 649 have_more = false; | |
| 650 break; | |
| 651 } | |
| 2117 | 652 } |
| 653 | |
| 4223 | 654 if (have_more) |
| 655 add_elt_to_list (args, flags, fw, prec, type, modifier, num_elts); | |
| 656 | |
| 657 list.resize (num_elts); | |
| 658 | |
| 659 delete buf; | |
| 2117 | 660 } |
| 661 } | |
| 662 | |
| 663 printf_format_list::~printf_format_list (void) | |
| 664 { | |
| 665 int n = list.length (); | |
| 666 | |
| 667 for (int i = 0; i < n; i++) | |
| 668 { | |
| 3340 | 669 printf_format_elt *elt = list(i); |
| 2117 | 670 delete elt; |
| 671 } | |
| 672 } | |
| 673 | |
| 674 void | |
| 3640 | 675 printf_format_list::add_elt_to_list (int args, const std::string& flags, |
| 676 int fw, int prec, char type, | |
| 677 char modifier, int& num_elts) | |
| 2117 | 678 { |
| 679 if (buf) | |
| 680 { | |
| 5765 | 681 std::string text = buf->str (); |
| 4051 | 682 |
| 683 if (! text.empty ()) | |
| 2117 | 684 { |
| 4051 | 685 printf_format_elt *elt |
| 686 = new printf_format_elt (text.c_str (), args, fw, prec, flags, | |
| 687 type, modifier); | |
| 688 | |
| 689 if (num_elts == list.length ()) | |
| 690 list.resize (2 * num_elts); | |
| 691 | |
| 692 list(num_elts++) = elt; | |
| 2117 | 693 } |
| 694 | |
| 695 delete buf; | |
| 696 buf = 0; | |
| 697 } | |
| 698 } | |
| 699 | |
| 700 void | |
| 3640 | 701 printf_format_list::process_conversion |
| 702 (const std::string& s, int& i, int n, int& args, std::string& flags, | |
| 703 int& fw, int& prec, char& modifier, char& type, int& num_elts) | |
| 2117 | 704 { |
| 705 args = 0; | |
| 3640 | 706 flags = ""; |
| 707 fw = 0; | |
| 708 prec = 0; | |
| 2117 | 709 modifier = '\0'; |
| 710 type = '\0'; | |
| 711 | |
| 712 *buf << s[i++]; | |
| 713 | |
| 4587 | 714 bool nxt = false; |
| 2117 | 715 |
| 716 while (i < n) | |
| 717 { | |
| 718 switch (s[i]) | |
| 719 { | |
| 720 case '-': case '+': case ' ': case '0': case '#': | |
| 3640 | 721 flags += s[i]; |
| 2117 | 722 *buf << s[i++]; |
| 723 break; | |
| 724 | |
| 725 default: | |
| 4587 | 726 nxt = true; |
| 2117 | 727 break; |
| 728 } | |
| 729 | |
| 4587 | 730 if (nxt) |
| 2117 | 731 break; |
| 732 } | |
| 733 | |
| 734 if (i < n) | |
| 735 { | |
| 736 if (s[i] == '*') | |
| 737 { | |
| 3640 | 738 fw = -1; |
| 2117 | 739 args++; |
| 740 *buf << s[i++]; | |
| 741 } | |
| 742 else | |
| 743 { | |
| 3640 | 744 if (isdigit (s[i])) |
| 745 { | |
| 4587 | 746 int nn = 0; |
| 3643 | 747 std::string tmp = s.substr (i); |
| 4587 | 748 sscanf (tmp.c_str (), "%d%n", &fw, &nn); |
| 3640 | 749 } |
| 750 | |
| 2117 | 751 while (i < n && isdigit (s[i])) |
| 752 *buf << s[i++]; | |
| 753 } | |
| 754 } | |
| 755 | |
| 756 if (i < n && s[i] == '.') | |
| 757 { | |
| 758 *buf << s[i++]; | |
| 759 | |
| 760 if (i < n) | |
| 761 { | |
| 762 if (s[i] == '*') | |
| 763 { | |
| 3640 | 764 prec = -1; |
| 2117 | 765 args++; |
| 766 *buf << s[i++]; | |
| 767 } | |
| 768 else | |
| 769 { | |
| 3640 | 770 if (isdigit (s[i])) |
| 771 { | |
| 4587 | 772 int nn = 0; |
| 3643 | 773 std::string tmp = s.substr (i); |
| 4587 | 774 sscanf (tmp.c_str (), "%d%n", &prec, &nn); |
| 3640 | 775 } |
| 776 | |
| 2117 | 777 while (i < n && isdigit (s[i])) |
| 778 *buf << s[i++]; | |
| 779 } | |
| 780 } | |
| 781 } | |
| 782 | |
| 783 if (i < n) | |
| 784 { | |
| 785 switch (s[i]) | |
| 786 { | |
| 787 case 'h': case 'l': case 'L': | |
| 788 modifier = s[i]; | |
| 789 *buf << s[i++]; | |
| 790 break; | |
| 791 | |
| 792 default: | |
| 793 break; | |
| 794 } | |
| 795 } | |
| 796 | |
| 797 if (i < n) | |
| 3640 | 798 finish_conversion (s, i, args, flags, fw, prec, modifier, type, num_elts); |
| 2117 | 799 else |
| 800 nconv = -1; | |
| 801 } | |
| 802 | |
| 803 void | |
| 3640 | 804 printf_format_list::finish_conversion |
| 805 (const std::string& s, int& i, int args, const std::string& flags, | |
| 806 int fw, int prec, char modifier, char& type, int& num_elts) | |
| 2117 | 807 |
| 808 { | |
| 809 switch (s[i]) | |
| 810 { | |
| 811 case 'd': case 'i': case 'o': case 'x': case 'X': | |
| 812 case 'u': case 'c': | |
| 813 if (modifier == 'L') | |
| 814 { | |
| 815 nconv = -1; | |
| 816 break; | |
| 817 } | |
| 818 goto fini; | |
| 819 | |
| 820 case 'f': case 'e': case 'E': case 'g': case 'G': | |
| 821 if (modifier == 'h' || modifier == 'l') | |
| 822 { | |
| 823 nconv = -1; | |
| 824 break; | |
| 825 } | |
| 826 goto fini; | |
| 827 | |
| 828 case 's': case 'p': case '%': | |
| 829 if (modifier != '\0') | |
| 830 { | |
| 831 nconv = -1; | |
| 832 break; | |
| 833 } | |
| 834 goto fini; | |
| 835 | |
| 836 fini: | |
| 837 | |
| 3640 | 838 type = s[i]; |
| 839 | |
| 840 *buf << s[i++]; | |
| 841 | |
| 842 if (type != '%' || args != 0) | |
| 843 nconv++; | |
| 844 | |
| 845 if (type != '%') | |
| 846 args++; | |
| 847 | |
| 848 add_elt_to_list (args, flags, fw, prec, type, modifier, num_elts); | |
| 849 | |
| 2117 | 850 break; |
| 851 | |
| 852 default: | |
| 853 nconv = -1; | |
| 854 break; | |
| 855 } | |
| 856 } | |
| 857 | |
| 858 void | |
| 859 printf_format_list::printme (void) const | |
| 860 { | |
| 861 int n = list.length (); | |
| 862 | |
| 863 for (int i = 0; i < n; i++) | |
| 864 { | |
| 3340 | 865 printf_format_elt *elt = list(i); |
| 2117 | 866 |
| 3640 | 867 std::cerr |
| 868 << "args: " << elt->args << "\n" | |
| 869 << "flags: `" << elt->flags << "'\n" | |
| 870 << "width: " << elt->fw << "\n" | |
| 871 << "prec: " << elt->prec << "\n" | |
| 872 << "type: `" << elt->type << "'\n" | |
| 873 << "modifier: `" << elt->modifier << "'\n" | |
| 874 << "text: `" << undo_string_escapes (elt->text) << "'\n\n"; | |
| 2117 | 875 } |
| 876 } | |
| 877 | |
| 3145 | 878 int |
| 3148 | 879 octave_base_stream::file_number (void) |
| 3145 | 880 { |
| 881 // Kluge alert! | |
| 882 | |
| 883 if (name () == "stdin") | |
| 884 return 0; | |
| 885 | |
| 886 if (name () == "stdout") | |
| 887 return 1; | |
| 888 | |
| 889 if (name () == "stderr") | |
| 890 return 2; | |
| 891 | |
| 892 int retval = -1; | |
| 893 | |
| 3523 | 894 std::istream *is = input_stream (); |
| 895 std::ostream *os = output_stream (); | |
| 3145 | 896 |
| 3775 | 897 // There is no standard way to get the underlying file descriptor from |
| 898 // std::filebuf (nor in the GNU libstdc++-v3 implementation). We cache | |
| 899 // the descriptor in c_file_ptr_buf, and then extract it here. | |
| 900 | |
| 6757 | 901 c_file_ptr_buf *ibuf |
| 902 = is ? dynamic_cast<c_file_ptr_buf *> (is->rdbuf ()) : 0; | |
| 903 | |
| 904 c_file_ptr_buf *obuf | |
| 905 = os ? dynamic_cast<c_file_ptr_buf *> (os->rdbuf ()) : 0; | |
| 3775 | 906 |
| 907 int i_fid = ibuf ? ibuf->file_number () : -1; | |
| 908 int o_fid = obuf ? obuf->file_number () : -1; | |
| 3145 | 909 |
| 910 if (i_fid >= 0) | |
| 911 { | |
| 912 if (o_fid >= 0) | |
| 913 retval = (i_fid == o_fid) ? i_fid : -1; | |
| 914 else | |
| 915 retval = i_fid; | |
| 916 } | |
| 917 else if (o_fid >= 0) | |
| 918 retval = o_fid; | |
| 919 | |
| 920 return retval; | |
| 921 } | |
| 922 | |
| 2117 | 923 void |
| 3523 | 924 octave_base_stream::error (const std::string& msg) |
| 2117 | 925 { |
| 926 fail = true; | |
| 927 errmsg = msg; | |
| 928 } | |
| 929 | |
| 930 void | |
| 4468 | 931 octave_base_stream::error (const std::string& who, const std::string& msg) |
| 932 { | |
| 933 fail = true; | |
| 6296 | 934 errmsg = who + ": " + msg; |
| 4468 | 935 } |
| 936 | |
| 937 void | |
| 2117 | 938 octave_base_stream::clear (void) |
| 939 { | |
| 4889 | 940 fail = false; |
| 941 errmsg = ""; | |
| 942 } | |
| 943 | |
| 944 void | |
| 945 octave_base_stream::clearerr (void) | |
| 946 { | |
| 4888 | 947 std::istream *is = input_stream (); |
| 948 std::ostream *os = output_stream (); | |
| 949 | |
| 950 if (is) | |
| 951 is->clear (); | |
| 952 | |
| 953 if (os) | |
| 954 os->clear (); | |
| 2117 | 955 } |
| 956 | |
| 957 // Functions that are defined for all input streams (input streams | |
| 958 // are those that define is). | |
| 959 | |
| 3536 | 960 std::string |
| 5275 | 961 octave_base_stream::do_gets (octave_idx_type max_len, bool& err, |
| 4468 | 962 bool strip_newline, const std::string& who) |
| 2117 | 963 { |
| 3523 | 964 std::string retval; |
| 2117 | 965 |
| 966 err = false; | |
| 967 | |
| 3523 | 968 std::istream *isp = input_stream (); |
| 2117 | 969 |
| 970 if (isp) | |
| 971 { | |
| 3523 | 972 std::istream& is = *isp; |
| 2117 | 973 |
| 5765 | 974 std::ostringstream buf; |
| 2117 | 975 |
| 976 int c = 0; | |
| 3553 | 977 int char_count = 0; |
| 6345 | 978 |
| 979 if (max_len != 0) | |
| 2117 | 980 { |
| 6345 | 981 while (is && (c = is.get ()) != EOF) |
| 2117 | 982 { |
| 6345 | 983 char_count++; |
| 984 | |
| 985 if (c == '\n') | |
| 986 { | |
| 987 if (! strip_newline) | |
| 988 buf << static_cast<char> (c); | |
| 989 | |
| 990 break; | |
| 991 } | |
| 992 else | |
| 5760 | 993 buf << static_cast<char> (c); |
| 6345 | 994 |
| 995 if (max_len > 0 && char_count == max_len) | |
| 996 break; | |
| 2117 | 997 } |
| 6345 | 998 } |
| 999 | |
| 1000 if (! is.eof () && char_count > 0) | |
| 1001 { | |
| 1002 // GAGME. Matlab seems to check for EOF even if the last | |
| 1003 // character in a file is a newline character. This is NOT | |
| 1004 // what the corresponding C-library functions do. | |
| 1005 int disgusting_compatibility_hack = is.get (); | |
| 1006 if (! is.eof ()) | |
| 1007 is.putback (disgusting_compatibility_hack); | |
| 2117 | 1008 } |
| 1009 | |
| 4224 | 1010 if (is.good () || (is.eof () && char_count > 0)) |
| 5765 | 1011 retval = buf.str (); |
| 4224 | 1012 else |
| 1013 { | |
| 1014 err = true; | |
| 4468 | 1015 |
| 4224 | 1016 if (is.eof () && char_count == 0) |
| 4468 | 1017 error (who, "at end of file"); |
| 4224 | 1018 else |
| 4468 | 1019 error (who, "read error"); |
| 4224 | 1020 } |
| 2117 | 1021 } |
| 1022 else | |
| 1023 { | |
| 1024 err = true; | |
| 4468 | 1025 invalid_operation (who, "reading"); |
| 2117 | 1026 } |
| 1027 | |
| 1028 return retval; | |
| 1029 } | |
| 1030 | |
| 3536 | 1031 std::string |
| 5275 | 1032 octave_base_stream::getl (octave_idx_type max_len, bool& err, const std::string& who) |
| 2117 | 1033 { |
| 4468 | 1034 return do_gets (max_len, err, true, who); |
| 2117 | 1035 } |
| 1036 | |
| 3536 | 1037 std::string |
| 5275 | 1038 octave_base_stream::gets (octave_idx_type max_len, bool& err, const std::string& who) |
| 2117 | 1039 { |
| 4468 | 1040 return do_gets (max_len, err, false, who); |
| 2117 | 1041 } |
| 1042 | |
| 3640 | 1043 #define OCTAVE_SCAN(is, fmt, arg) octave_scan (is, fmt, arg) |
| 3636 | 1044 |
| 1045 template <class T> | |
| 1046 std::istream& | |
| 6767 | 1047 octave_scan_1 (std::istream& is, const scanf_format_elt& fmt, T* valptr) |
| 3636 | 1048 { |
| 3779 | 1049 T& ref = *valptr; |
| 1050 | |
| 1051 switch (fmt.type) | |
| 1052 { | |
| 1053 case 'o': | |
| 4926 | 1054 is >> std::oct >> ref >> std::dec; |
| 3779 | 1055 break; |
| 1056 | |
| 1057 case 'x': | |
| 4926 | 1058 is >> std::hex >> ref >> std::dec; |
| 1059 break; | |
| 1060 | |
| 1061 case 'i': | |
| 1062 { | |
| 1063 int c1 = is.get (); | |
| 1064 | |
| 1065 if (! is.eof ()) | |
| 1066 { | |
| 1067 if (c1 == '0') | |
| 1068 { | |
| 4927 | 1069 int c2 = is.get (); |
| 4926 | 1070 |
| 1071 if (c2 == 'x' || c2 == 'X') | |
| 1072 is >> std::hex >> ref >> std::dec; | |
| 1073 else | |
| 4927 | 1074 { |
| 1075 is.putback (c2); | |
| 1076 | |
| 1077 if (c2 == '0' || c2 == '1' || c2 == '2' | |
| 1078 || c2 == '3' || c2 == '4' || c2 == '5' | |
| 1079 || c2 == '6' || c2 == '7') | |
| 1080 is >> std::oct >> ref >> std::dec; | |
| 1081 else | |
| 1082 ref = 0; | |
| 1083 } | |
| 4926 | 1084 } |
| 1085 else | |
| 1086 { | |
| 1087 is.putback (c1); | |
| 1088 | |
| 1089 is >> ref; | |
| 1090 } | |
| 1091 } | |
| 1092 } | |
| 3779 | 1093 break; |
| 1094 | |
| 1095 default: | |
| 1096 is >> ref; | |
| 1097 break; | |
| 1098 } | |
| 3639 | 1099 |
| 3638 | 1100 return is; |
| 3636 | 1101 } |
| 1102 | |
| 6767 | 1103 template <class T> |
| 1104 std::istream& | |
| 1105 octave_scan (std::istream& is, const scanf_format_elt& fmt, T* valptr) | |
| 1106 { | |
| 1107 if (fmt.width) | |
| 1108 { | |
| 1109 // Limit input to fmt.width characters by reading into a | |
| 1110 // temporary stringstream buffer. | |
| 1111 | |
| 1112 std::string tmp; | |
| 1113 | |
| 1114 is.width (fmt.width); | |
| 1115 is >> tmp; | |
| 1116 | |
| 1117 std::istringstream ss (tmp); | |
| 1118 | |
| 1119 octave_scan_1 (ss, fmt, valptr); | |
| 1120 } | |
| 1121 else | |
| 1122 octave_scan_1 (is, fmt, valptr); | |
| 1123 | |
| 1124 return is; | |
| 1125 } | |
| 1126 | |
| 3779 | 1127 // Note that this specialization is only used for reading characters, not |
| 1128 // character strings. See BEGIN_S_CONVERSION for details. | |
| 1129 | |
| 1130 template<> | |
| 1131 std::istream& | |
| 4661 | 1132 octave_scan<> (std::istream& is, const scanf_format_elt& /* fmt */, |
| 1133 char* valptr) | |
| 3779 | 1134 { |
| 1135 return is >> valptr; | |
| 1136 } | |
| 3636 | 1137 |
| 4595 | 1138 template std::istream& |
| 1139 octave_scan (std::istream&, const scanf_format_elt&, int*); | |
| 1140 | |
| 1141 template std::istream& | |
| 1142 octave_scan (std::istream&, const scanf_format_elt&, long int*); | |
| 1143 | |
| 1144 template std::istream& | |
| 1145 octave_scan (std::istream&, const scanf_format_elt&, short int*); | |
| 1146 | |
| 1147 template std::istream& | |
| 1148 octave_scan (std::istream&, const scanf_format_elt&, unsigned int*); | |
| 1149 | |
| 1150 template std::istream& | |
| 1151 octave_scan (std::istream&, const scanf_format_elt&, unsigned long int*); | |
| 1152 | |
| 1153 template std::istream& | |
| 1154 octave_scan (std::istream&, const scanf_format_elt&, unsigned short int*); | |
| 1155 | |
| 1156 #if 0 | |
| 1157 template std::istream& | |
| 1158 octave_scan (std::istream&, const scanf_format_elt&, float*); | |
| 1159 #endif | |
| 1160 | |
| 5403 | 1161 template<> |
| 5176 | 1162 std::istream& |
| 5403 | 1163 octave_scan<> (std::istream& is, const scanf_format_elt& fmt, double* valptr) |
| 5176 | 1164 { |
| 1165 double& ref = *valptr; | |
| 1166 | |
| 1167 switch (fmt.type) | |
| 1168 { | |
| 1169 case 'e': | |
| 1170 case 'f': | |
| 1171 case 'g': | |
| 1172 { | |
| 5259 | 1173 int c1 = EOF; |
| 5176 | 1174 |
| 1175 while (is && (c1 = is.get ()) != EOF && isspace (c1)) | |
| 1176 /* skip whitespace */; | |
| 1177 | |
| 1178 if (c1 != EOF) | |
| 1179 { | |
| 1180 if (c1 == 'N') | |
| 1181 { | |
| 1182 int c2 = is.get (); | |
| 1183 | |
| 1184 if (c2 != EOF) | |
| 1185 { | |
| 1186 if (c2 == 'A') | |
| 1187 { | |
| 1188 int c3 = is.get (); | |
| 1189 | |
| 1190 if (c3 != EOF) | |
| 1191 { | |
| 1192 is.putback (c3); | |
| 1193 | |
| 1194 if (isspace (c3) || ispunct (c3)) | |
| 1195 ref = octave_NA; | |
| 1196 else | |
| 1197 { | |
| 1198 is.putback (c2); | |
| 1199 is.putback (c1); | |
| 1200 | |
| 1201 is >> ref; | |
| 1202 } | |
| 1203 } | |
| 1204 else | |
| 1205 { | |
| 1206 is.clear (); | |
| 1207 | |
| 1208 ref = octave_NA; | |
| 1209 } | |
| 1210 } | |
| 1211 else if (c2 == 'a') | |
| 1212 { | |
| 1213 int c3 = is.get (); | |
| 1214 | |
| 1215 if (c3 != EOF) | |
| 1216 { | |
| 1217 if (c3 == 'N') | |
| 1218 { | |
| 1219 int c4 = is.get (); | |
| 1220 | |
| 1221 if (c4 != EOF) | |
| 1222 { | |
| 1223 is.putback (c4); | |
| 1224 | |
| 1225 if (isspace (c4) || ispunct (c4)) | |
| 1226 ref = octave_NaN; | |
| 1227 else | |
| 1228 { | |
| 1229 is.putback (c3); | |
| 1230 is.putback (c2); | |
| 1231 is.putback (c1); | |
| 1232 | |
| 1233 is >> ref; | |
| 1234 } | |
| 1235 } | |
| 1236 else | |
| 1237 { | |
| 1238 is.clear (); | |
| 1239 | |
| 1240 ref = octave_NaN; | |
| 1241 } | |
| 1242 } | |
| 1243 else | |
| 1244 { | |
| 1245 is.putback (c3); | |
| 1246 is.putback (c2); | |
| 1247 is.putback (c1); | |
| 1248 | |
| 1249 is >> ref; | |
| 1250 } | |
| 1251 } | |
| 1252 } | |
| 1253 else | |
| 1254 { | |
| 1255 is.putback (c2); | |
| 1256 is.putback (c1); | |
| 1257 | |
| 1258 is >> ref; | |
| 1259 } | |
| 1260 } | |
| 1261 } | |
| 1262 else if (c1 == 'I') | |
| 1263 { | |
| 1264 int c2 = is.get (); | |
| 1265 | |
| 1266 if (c2 != EOF) | |
| 1267 { | |
| 1268 if (c2 == 'n') | |
| 1269 { | |
| 1270 int c3 = is.get (); | |
| 1271 | |
| 1272 if (c3 != EOF) | |
| 6483 | 1273 { |
| 1274 if (c3 == 'f') | |
| 1275 { | |
| 1276 int c4 = is.get (); | |
| 1277 | |
| 1278 if (c4 != EOF) | |
| 1279 { | |
| 1280 is.putback (c4); | |
| 1281 | |
| 1282 if (isspace (c4) || ispunct (c4)) | |
| 1283 ref = octave_Inf; | |
| 1284 else | |
| 1285 { | |
| 1286 is.putback (c3); | |
| 1287 is.putback (c2); | |
| 1288 is.putback (c1); | |
| 1289 | |
| 1290 is >> ref; | |
| 1291 } | |
| 1292 } | |
| 1293 else | |
| 1294 { | |
| 1295 is.clear (); | |
| 1296 | |
| 5176 | 1297 ref = octave_Inf; |
| 6483 | 1298 } |
| 1299 } | |
| 1300 else | |
| 1301 { | |
| 1302 is.putback (c3); | |
| 1303 is.putback (c2); | |
| 1304 is.putback (c1); | |
| 1305 | |
| 1306 is >> ref; | |
| 1307 } | |
| 1308 } | |
| 1309 else | |
| 1310 { | |
| 1311 is.putback (c2); | |
| 1312 is.putback (c1); | |
| 1313 | |
| 1314 is >> ref; | |
| 1315 } | |
| 5176 | 1316 } |
| 1317 } | |
| 1318 } | |
| 1319 else | |
| 1320 { | |
| 1321 is.putback (c1); | |
| 1322 | |
| 1323 is >> ref; | |
| 1324 } | |
| 1325 } | |
| 1326 } | |
| 1327 break; | |
| 1328 | |
| 1329 default: | |
| 1330 panic_impossible (); | |
| 1331 break; | |
| 1332 } | |
| 1333 | |
| 1334 return is; | |
| 1335 } | |
| 1336 | |
| 2572 | 1337 template <class T> |
| 1338 void | |
| 3636 | 1339 do_scanf_conv (std::istream& is, const scanf_format_elt& fmt, |
| 5275 | 1340 T valptr, Matrix& mval, double *data, octave_idx_type& idx, |
| 1341 octave_idx_type& conversion_count, octave_idx_type nr, octave_idx_type max_size, | |
| 3636 | 1342 bool discard) |
| 2572 | 1343 { |
| 3640 | 1344 OCTAVE_SCAN (is, fmt, valptr); |
| 2572 | 1345 |
| 1346 if (is) | |
| 1347 { | |
| 1348 if (idx == max_size && ! discard) | |
| 1349 { | |
| 1350 max_size *= 2; | |
| 1351 | |
| 1352 if (nr > 0) | |
| 1353 mval.resize (nr, max_size / nr, 0.0); | |
| 1354 else | |
| 1355 mval.resize (max_size, 1, 0.0); | |
| 1356 | |
| 1357 data = mval.fortran_vec (); | |
| 1358 } | |
| 1359 | |
| 1360 if (! discard) | |
| 3268 | 1361 { |
| 3559 | 1362 conversion_count++; |
| 3268 | 1363 data[idx++] = *(valptr); |
| 1364 } | |
| 2572 | 1365 } |
| 1366 } | |
| 1367 | |
| 1368 template void | |
| 3878 | 1369 do_scanf_conv (std::istream&, const scanf_format_elt&, int*, |
| 5275 | 1370 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 2572 | 1371 |
| 3233 | 1372 template void |
| 3636 | 1373 do_scanf_conv (std::istream&, const scanf_format_elt&, long int*, |
| 5275 | 1374 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3233 | 1375 |
| 1376 template void | |
| 3636 | 1377 do_scanf_conv (std::istream&, const scanf_format_elt&, short int*, |
| 5275 | 1378 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3233 | 1379 |
| 3878 | 1380 template void |
| 1381 do_scanf_conv (std::istream&, const scanf_format_elt&, unsigned int*, | |
| 5275 | 1382 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3878 | 1383 |
| 1384 template void | |
| 1385 do_scanf_conv (std::istream&, const scanf_format_elt&, unsigned long int*, | |
| 5275 | 1386 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3878 | 1387 |
| 1388 template void | |
| 1389 do_scanf_conv (std::istream&, const scanf_format_elt&, unsigned short int*, | |
| 5275 | 1390 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3878 | 1391 |
| 2600 | 1392 #if 0 |
| 2572 | 1393 template void |
| 3636 | 1394 do_scanf_conv (std::istream&, const scanf_format_elt&, float*, |
| 5275 | 1395 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 2600 | 1396 #endif |
| 2572 | 1397 |
| 1398 template void | |
| 3636 | 1399 do_scanf_conv (std::istream&, const scanf_format_elt&, double*, |
| 5275 | 1400 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 2572 | 1401 |
| 3483 | 1402 #define DO_WHITESPACE_CONVERSION() \ |
| 1403 do \ | |
| 1404 { \ | |
| 1405 int c = EOF; \ | |
| 1406 \ | |
| 1407 while (is && (c = is.get ()) != EOF && isspace (c)) \ | |
| 1408 /* skip whitespace */; \ | |
| 1409 \ | |
| 1410 if (c != EOF) \ | |
| 1411 is.putback (c); \ | |
| 1412 } \ | |
| 1413 while (0) | |
| 1414 | |
| 1415 #define DO_LITERAL_CONVERSION() \ | |
| 1416 do \ | |
| 1417 { \ | |
| 1418 int c = EOF; \ | |
| 1419 \ | |
| 1420 int n = strlen (fmt); \ | |
| 1421 int i = 0; \ | |
| 1422 \ | |
| 1423 while (i < n && is && (c = is.get ()) != EOF) \ | |
| 1424 { \ | |
| 5326 | 1425 if (c == static_cast<unsigned char> (fmt[i])) \ |
| 3483 | 1426 { \ |
| 1427 i++; \ | |
| 1428 continue; \ | |
| 1429 } \ | |
| 1430 else \ | |
| 1431 { \ | |
| 1432 is.putback (c); \ | |
| 1433 break; \ | |
| 1434 } \ | |
| 1435 } \ | |
| 1436 \ | |
| 1437 if (i != n) \ | |
| 3538 | 1438 is.setstate (std::ios::failbit); \ |
| 3483 | 1439 } \ |
| 1440 while (0) | |
| 1441 | |
| 3640 | 1442 #define DO_PCT_CONVERSION() \ |
| 1443 do \ | |
| 1444 { \ | |
| 1445 int c = is.get (); \ | |
| 1446 \ | |
| 1447 if (c != EOF) \ | |
| 1448 { \ | |
| 1449 if (c != '%') \ | |
| 1450 { \ | |
| 1451 is.putback (c); \ | |
| 1452 is.setstate (std::ios::failbit); \ | |
| 1453 } \ | |
| 1454 } \ | |
| 1455 else \ | |
| 1456 is.setstate (std::ios::failbit); \ | |
| 1457 } \ | |
| 1458 while (0) | |
| 1459 | |
| 3483 | 1460 #define BEGIN_C_CONVERSION() \ |
| 3538 | 1461 is.unsetf (std::ios::skipws); \ |
| 3483 | 1462 \ |
| 1463 int width = elt->width ? elt->width : 1; \ | |
| 1464 \ | |
| 4051 | 1465 char *tbuf = new char[width + 1]; \ |
| 3483 | 1466 \ |
| 1467 int c = EOF; \ | |
| 1468 int n = 0; \ | |
| 1469 \ | |
| 1470 while (is && n < width && (c = is.get ()) != EOF) \ | |
| 5760 | 1471 tbuf[n++] = static_cast<char> (c); \ |
| 4051 | 1472 \ |
| 1473 tbuf[n] = '\0'; \ | |
| 3483 | 1474 \ |
| 5266 | 1475 if (n > 0 && c == EOF) \ |
| 1476 is.clear (); \ | |
| 1477 \ | |
| 4051 | 1478 std::string tmp = tbuf; \ |
| 1479 \ | |
| 1480 delete [] tbuf | |
| 3483 | 1481 |
| 1482 // For a `%s' format, skip initial whitespace and then read until the | |
| 5338 | 1483 // next whitespace character or until WIDTH characters have been read. |
| 3483 | 1484 #define BEGIN_S_CONVERSION() \ |
| 1485 int width = elt->width; \ | |
| 1486 \ | |
| 4051 | 1487 std::string tmp; \ |
| 3483 | 1488 \ |
| 1489 do \ | |
| 1490 { \ | |
| 1491 if (width) \ | |
| 5338 | 1492 { \ |
| 1493 char *tbuf = new char [width+1]; \ | |
| 1494 \ | |
| 1495 int c = EOF; \ | |
| 1496 \ | |
| 1497 int n = 0; \ | |
| 1498 \ | |
| 1499 while (is && (c = is.get ()) != EOF) \ | |
| 1500 { \ | |
| 1501 if (! isspace (c)) \ | |
| 1502 { \ | |
| 1503 tbuf[n++] = static_cast<char> (c); \ | |
| 1504 break; \ | |
| 1505 } \ | |
| 1506 } \ | |
| 4051 | 1507 \ |
| 5338 | 1508 while (is && n < width && (c = is.get ()) != EOF) \ |
| 1509 { \ | |
| 1510 if (isspace (c)) \ | |
| 1511 { \ | |
| 1512 is.putback (c); \ | |
| 1513 break; \ | |
| 1514 } \ | |
| 1515 else \ | |
| 1516 tbuf[n++] = static_cast<char> (c); \ | |
| 1517 } \ | |
| 3483 | 1518 \ |
| 5338 | 1519 tbuf[n] = '\0'; \ |
| 1520 \ | |
| 1521 if (n > 0 && c == EOF) \ | |
| 1522 is.clear (); \ | |
| 1523 \ | |
| 4051 | 1524 tmp = tbuf; \ |
| 5338 | 1525 \ |
| 4051 | 1526 delete [] tbuf; \ |
| 5338 | 1527 } \ |
| 3483 | 1528 else \ |
| 5338 | 1529 { \ |
| 1530 is >> std::ws >> tmp; \ | |
| 1531 } \ | |
| 3483 | 1532 } \ |
| 1533 while (0) | |
| 1534 | |
| 1535 // This format must match a nonempty sequence of characters. | |
| 1536 #define BEGIN_CHAR_CLASS_CONVERSION() \ | |
| 1537 int width = elt->width; \ | |
| 1538 \ | |
| 4051 | 1539 std::string tmp; \ |
| 3483 | 1540 \ |
| 1541 do \ | |
| 1542 { \ | |
| 7426 | 1543 if (! width) \ |
| 7427 | 1544 width = INT_MAX; \ |
| 1545 \ | |
| 7426 | 1546 std::ostringstream buf; \ |
| 1547 \ | |
| 1548 std::string char_class = elt->char_class; \ | |
| 4051 | 1549 \ |
| 7426 | 1550 int c = EOF; \ |
| 3483 | 1551 \ |
| 7426 | 1552 if (elt->type == '[') \ |
| 1553 { \ | |
| 1554 int chars_read = 0; \ | |
| 1555 while (is && chars_read++ < width && (c = is.get ()) != EOF \ | |
| 1556 && char_class.find (c) != NPOS) \ | |
| 1557 buf << static_cast<char> (c); \ | |
| 3483 | 1558 } \ |
| 1559 else \ | |
| 1560 { \ | |
| 7426 | 1561 int chars_read = 0; \ |
| 1562 while (is && chars_read++ < width && (c = is.get ()) != EOF \ | |
| 1563 && char_class.find (c) == NPOS) \ | |
| 1564 buf << static_cast<char> (c); \ | |
| 1565 } \ | |
| 3483 | 1566 \ |
| 7426 | 1567 if (width == INT_MAX && c != EOF) \ |
| 1568 is.putback (c); \ | |
| 3483 | 1569 \ |
| 7426 | 1570 tmp = buf.str (); \ |
| 3483 | 1571 \ |
| 7426 | 1572 if (tmp.empty ()) \ |
| 1573 is.setstate (std::ios::failbit); \ | |
| 3483 | 1574 } \ |
| 1575 while (0) | |
| 1576 | |
| 3410 | 1577 #define FINISH_CHARACTER_CONVERSION() \ |
| 1578 do \ | |
| 1579 { \ | |
| 4051 | 1580 width = tmp.length (); \ |
| 3410 | 1581 \ |
| 1582 if (is) \ | |
| 1583 { \ | |
| 1584 int i = 0; \ | |
| 1585 \ | |
| 1586 if (! discard) \ | |
| 1587 { \ | |
| 1588 conversion_count++; \ | |
| 1589 \ | |
| 1590 while (i < width && tmp[i] != '\0') \ | |
| 1591 { \ | |
| 1592 if (data_index == max_size) \ | |
| 1593 { \ | |
| 1594 max_size *= 2; \ | |
| 1595 \ | |
| 4420 | 1596 if (all_char_conv) \ |
| 3410 | 1597 { \ |
| 4420 | 1598 if (one_elt_size_spec) \ |
| 3410 | 1599 mval.resize (1, max_size, 0.0); \ |
| 4420 | 1600 else if (nr > 0) \ |
| 1601 mval.resize (nr, max_size / nr, 0.0); \ | |
| 3410 | 1602 else \ |
| 4420 | 1603 panic_impossible (); \ |
| 3410 | 1604 } \ |
| 4420 | 1605 else if (nr > 0) \ |
| 6970 | 1606 mval.resize (nr, max_size / nr, 0.0); \ |
| 4420 | 1607 else \ |
| 1608 mval.resize (max_size, 1, 0.0); \ | |
| 3410 | 1609 \ |
| 1610 data = mval.fortran_vec (); \ | |
| 1611 } \ | |
| 1612 \ | |
| 1613 data[data_index++] = tmp[i++]; \ | |
| 1614 } \ | |
| 1615 } \ | |
| 1616 } \ | |
| 1617 } \ | |
| 1618 while (0) | |
| 2117 | 1619 |
| 1620 octave_value | |
| 1621 octave_base_stream::do_scanf (scanf_format_list& fmt_list, | |
| 5275 | 1622 octave_idx_type nr, octave_idx_type nc, bool one_elt_size_spec, |
| 1623 octave_idx_type& conversion_count, const std::string& who) | |
| 2117 | 1624 { |
| 3268 | 1625 conversion_count = 0; |
| 1626 | |
| 3640 | 1627 int nconv = fmt_list.num_conversions (); |
| 1628 | |
| 5275 | 1629 octave_idx_type data_index = 0; |
| 2121 | 1630 |
| 2117 | 1631 octave_value retval = Matrix (); |
| 1632 | |
| 3268 | 1633 if (nr == 0 || nc == 0) |
| 1634 { | |
| 1635 if (one_elt_size_spec) | |
| 1636 nc = 0; | |
| 1637 | |
| 1638 return Matrix (nr, nc, 0.0); | |
| 1639 } | |
| 1640 | |
| 3523 | 1641 std::istream *isp = input_stream (); |
| 2117 | 1642 |
| 1643 bool all_char_conv = fmt_list.all_character_conversions (); | |
| 1644 | |
| 1645 Matrix mval; | |
| 1646 double *data = 0; | |
| 5275 | 1647 octave_idx_type max_size = 0; |
| 1648 octave_idx_type max_conv = 0; | |
| 1649 | |
| 1650 octave_idx_type final_nr = 0; | |
| 1651 octave_idx_type final_nc = 0; | |
| 2117 | 1652 |
| 3268 | 1653 if (all_char_conv) |
| 1654 { | |
| 4420 | 1655 // Any of these could be resized later (if we have %s |
| 1656 // conversions, we may read more than one element for each | |
| 1657 // conversion). | |
| 1658 | |
| 3268 | 1659 if (one_elt_size_spec) |
| 1660 { | |
| 3410 | 1661 max_size = 512; |
| 1662 mval.resize (1, max_size, 0.0); | |
| 1663 | |
| 3268 | 1664 if (nr > 0) |
| 1665 max_conv = nr; | |
| 1666 } | |
| 4420 | 1667 else if (nr > 0) |
| 3268 | 1668 { |
| 4420 | 1669 if (nc > 0) |
| 1670 { | |
| 1671 mval.resize (nr, nc, 0.0); | |
| 1672 max_size = max_conv = nr * nc; | |
| 1673 } | |
| 1674 else | |
| 1675 { | |
| 1676 mval.resize (nr, 32, 0.0); | |
| 1677 max_size = nr * 32; | |
| 1678 } | |
| 3268 | 1679 } |
| 4420 | 1680 else |
| 1681 panic_impossible (); | |
| 3268 | 1682 } |
| 1683 else if (nr > 0) | |
| 2117 | 1684 { |
| 1685 if (nc > 0) | |
| 1686 { | |
| 4420 | 1687 // Will not resize later. |
| 2117 | 1688 mval.resize (nr, nc, 0.0); |
| 1689 max_size = nr * nc; | |
| 3268 | 1690 max_conv = max_size; |
| 2117 | 1691 } |
| 1692 else | |
| 1693 { | |
| 4420 | 1694 // Maybe resize later. |
| 2117 | 1695 mval.resize (nr, 32, 0.0); |
| 2121 | 1696 max_size = nr * 32; |
| 2117 | 1697 } |
| 1698 } | |
| 1699 else | |
| 1700 { | |
| 4420 | 1701 // Maybe resize later. |
| 2117 | 1702 mval.resize (32, 1, 0.0); |
| 1703 max_size = 32; | |
| 1704 } | |
| 1705 | |
| 4420 | 1706 data = mval.fortran_vec (); |
| 1707 | |
| 2117 | 1708 if (isp) |
| 1709 { | |
| 3523 | 1710 std::istream& is = *isp; |
| 2117 | 1711 |
| 1712 const scanf_format_elt *elt = fmt_list.first (); | |
| 1713 | |
| 3538 | 1714 std::ios::fmtflags flags = is.flags (); |
| 2213 | 1715 |
| 2117 | 1716 for (;;) |
| 1717 { | |
| 4153 | 1718 OCTAVE_QUIT; |
| 1719 | |
| 2117 | 1720 if (elt) |
| 1721 { | |
| 3268 | 1722 if (max_conv > 0 && conversion_count == max_conv) |
| 1723 { | |
| 1724 if (all_char_conv && one_elt_size_spec) | |
| 1725 { | |
| 1726 final_nr = 1; | |
| 1727 final_nc = data_index; | |
| 1728 } | |
| 1729 else | |
| 1730 { | |
| 1731 final_nr = nr; | |
| 1732 final_nc = (data_index - 1) / nr + 1; | |
| 1733 } | |
| 1734 | |
| 1735 break; | |
| 1736 } | |
| 1737 else if (data_index == max_size) | |
| 2117 | 1738 { |
| 3410 | 1739 max_size *= 2; |
| 1740 | |
| 4420 | 1741 if (all_char_conv) |
| 2687 | 1742 { |
| 4420 | 1743 if (one_elt_size_spec) |
| 3410 | 1744 mval.resize (1, max_size, 0.0); |
| 4420 | 1745 else if (nr > 0) |
| 1746 mval.resize (nr, max_size / nr, 0.0); | |
| 3410 | 1747 else |
| 4420 | 1748 panic_impossible (); |
| 2687 | 1749 } |
| 4420 | 1750 else if (nr > 0) |
| 6970 | 1751 mval.resize (nr, max_size / nr, 0.0); |
| 4420 | 1752 else |
| 1753 mval.resize (max_size, 1, 0.0); | |
| 3410 | 1754 |
| 1755 data = mval.fortran_vec (); | |
| 2117 | 1756 } |
| 1757 | |
| 1758 const char *fmt = elt->text; | |
| 1759 | |
| 1760 bool discard = elt->discard; | |
| 1761 | |
| 1762 switch (elt->type) | |
| 1763 { | |
| 3483 | 1764 case scanf_format_elt::whitespace_conversion: |
| 1765 DO_WHITESPACE_CONVERSION (); | |
| 1766 break; | |
| 1767 | |
| 1768 case scanf_format_elt::literal_conversion: | |
| 1769 DO_LITERAL_CONVERSION (); | |
| 1770 break; | |
| 1771 | |
| 2117 | 1772 case '%': |
| 3640 | 1773 DO_PCT_CONVERSION (); |
| 3483 | 1774 break; |
| 2117 | 1775 |
| 3878 | 1776 case 'd': case 'i': |
| 2117 | 1777 { |
| 3233 | 1778 switch (elt->modifier) |
| 1779 { | |
| 1780 case 'h': | |
| 1781 { | |
| 1782 short int tmp; | |
| 3779 | 1783 do_scanf_conv (is, *elt, &tmp, mval, data, |
| 3268 | 1784 data_index, conversion_count, |
| 3233 | 1785 nr, max_size, discard); |
| 1786 } | |
| 3483 | 1787 break; |
| 3233 | 1788 |
| 1789 case 'l': | |
| 1790 { | |
| 1791 long int tmp; | |
| 3779 | 1792 do_scanf_conv (is, *elt, &tmp, mval, data, |
| 3268 | 1793 data_index, conversion_count, |
| 3233 | 1794 nr, max_size, discard); |
| 1795 } | |
| 3483 | 1796 break; |
| 3233 | 1797 |
| 1798 default: | |
| 1799 { | |
| 1800 int tmp; | |
| 3779 | 1801 do_scanf_conv (is, *elt, &tmp, mval, data, |
| 3268 | 1802 data_index, conversion_count, |
| 3233 | 1803 nr, max_size, discard); |
| 1804 } | |
| 3483 | 1805 break; |
| 3233 | 1806 } |
| 2117 | 1807 } |
| 3483 | 1808 break; |
| 2117 | 1809 |
| 3878 | 1810 case 'o': case 'u': case 'x': |
| 1811 { | |
| 1812 switch (elt->modifier) | |
| 1813 { | |
| 1814 case 'h': | |
| 1815 { | |
| 1816 unsigned short int tmp; | |
| 1817 do_scanf_conv (is, *elt, &tmp, mval, data, | |
| 1818 data_index, conversion_count, | |
| 1819 nr, max_size, discard); | |
| 1820 } | |
| 1821 break; | |
| 1822 | |
| 1823 case 'l': | |
| 1824 { | |
| 1825 unsigned long int tmp; | |
| 1826 do_scanf_conv (is, *elt, &tmp, mval, data, | |
| 1827 data_index, conversion_count, | |
| 1828 nr, max_size, discard); | |
| 1829 } | |
| 1830 break; | |
| 1831 | |
| 1832 default: | |
| 1833 { | |
| 1834 unsigned int tmp; | |
| 1835 do_scanf_conv (is, *elt, &tmp, mval, data, | |
| 1836 data_index, conversion_count, | |
| 1837 nr, max_size, discard); | |
| 1838 } | |
| 1839 break; | |
| 1840 } | |
| 1841 } | |
| 1842 break; | |
| 1843 | |
| 2117 | 1844 case 'e': case 'f': case 'g': |
| 1845 { | |
| 2600 | 1846 double tmp; |
| 1847 | |
| 3779 | 1848 do_scanf_conv (is, *elt, &tmp, mval, data, |
| 3268 | 1849 data_index, conversion_count, |
| 2600 | 1850 nr, max_size, discard); |
| 2117 | 1851 } |
| 3483 | 1852 break; |
| 2117 | 1853 |
| 2213 | 1854 case 'c': |
| 3410 | 1855 { |
| 3483 | 1856 BEGIN_C_CONVERSION (); |
| 3410 | 1857 |
| 1858 FINISH_CHARACTER_CONVERSION (); | |
| 3483 | 1859 |
| 1860 is.setf (flags); | |
| 3410 | 1861 } |
| 1862 break; | |
| 2213 | 1863 |
| 2117 | 1864 case 's': |
| 1865 { | |
| 3483 | 1866 BEGIN_S_CONVERSION (); |
| 3268 | 1867 |
| 3410 | 1868 FINISH_CHARACTER_CONVERSION (); |
| 2117 | 1869 } |
| 3483 | 1870 break; |
| 1871 | |
| 1872 case '[': case '^': | |
| 1873 { | |
| 1874 BEGIN_CHAR_CLASS_CONVERSION (); | |
| 1875 | |
| 1876 FINISH_CHARACTER_CONVERSION (); | |
| 1877 } | |
| 1878 break; | |
| 1879 | |
| 1880 case 'p': | |
| 4468 | 1881 error ("%s: unsupported format specifier", who.c_str ()); |
| 2117 | 1882 break; |
| 1883 | |
| 1884 default: | |
| 4468 | 1885 error ("%s: internal format error", who.c_str ()); |
| 2117 | 1886 break; |
| 1887 } | |
| 1888 | |
| 1889 if (! ok ()) | |
| 1890 { | |
| 1891 break; | |
| 1892 } | |
| 1893 else if (! is) | |
| 1894 { | |
| 3268 | 1895 if (all_char_conv) |
| 2117 | 1896 { |
| 3268 | 1897 if (one_elt_size_spec) |
| 1898 { | |
| 1899 final_nr = 1; | |
| 1900 final_nc = data_index; | |
| 1901 } | |
| 1902 else if (data_index > nr) | |
| 2117 | 1903 { |
| 2759 | 1904 final_nr = nr; |
| 3268 | 1905 final_nc = (data_index - 1) / nr + 1; |
| 2117 | 1906 } |
| 1907 else | |
| 1908 { | |
| 3268 | 1909 final_nr = data_index; |
| 1910 final_nc = 1; | |
| 1911 } | |
| 1912 } | |
| 1913 else if (nr > 0) | |
| 1914 { | |
| 1915 if (data_index > nr) | |
| 1916 { | |
| 1917 final_nr = nr; | |
| 1918 final_nc = (data_index - 1) / nr + 1; | |
| 1919 } | |
| 1920 else | |
| 1921 { | |
| 1922 final_nr = data_index; | |
| 2117 | 1923 final_nc = 1; |
| 1924 } | |
| 1925 } | |
| 1926 else | |
| 1927 { | |
| 3268 | 1928 final_nr = data_index; |
| 2759 | 1929 final_nc = 1; |
| 1930 } | |
| 1931 | |
| 3337 | 1932 // If it looks like we have a matching failure, then |
| 1933 // reset the failbit in the stream state. | |
| 1934 | |
| 3538 | 1935 if (is.rdstate () & std::ios::failbit) |
| 1936 is.clear (is.rdstate () & (~std::ios::failbit)); | |
| 3337 | 1937 |
| 5775 | 1938 // FIXME -- is this the right thing to do? |
| 3342 | 1939 |
| 1940 if (interactive && name () == "stdin") | |
| 2759 | 1941 { |
| 1942 is.clear (); | |
| 1943 | |
| 1944 // Skip to end of line. | |
| 1945 | |
| 1946 bool err; | |
| 4468 | 1947 do_gets (-1, err, false, who); |
| 2117 | 1948 } |
| 1949 | |
| 1950 break; | |
| 1951 } | |
| 1952 } | |
| 1953 else | |
| 1954 { | |
| 4468 | 1955 error ("%s: internal format error", who.c_str ()); |
| 2117 | 1956 break; |
| 1957 } | |
| 1958 | |
| 3640 | 1959 elt = fmt_list.next (nconv > 0); |
| 2117 | 1960 } |
| 1961 } | |
| 1962 | |
| 1963 if (ok ()) | |
| 1964 { | |
| 2121 | 1965 mval.resize (final_nr, final_nc, 0.0); |
| 2117 | 1966 |
| 3268 | 1967 retval = mval; |
| 1968 | |
| 2117 | 1969 if (all_char_conv) |
| 5279 | 1970 retval = retval.convert_to_str (false, true); |
| 2117 | 1971 } |
| 1972 | |
| 1973 return retval; | |
| 1974 } | |
| 1975 | |
| 1976 octave_value | |
| 3810 | 1977 octave_base_stream::scanf (const std::string& fmt, const Array<double>& size, |
| 5275 | 1978 octave_idx_type& conversion_count, const std::string& who) |
| 2117 | 1979 { |
| 1980 octave_value retval = Matrix (); | |
| 1981 | |
| 3559 | 1982 conversion_count = 0; |
| 2117 | 1983 |
| 3523 | 1984 std::istream *isp = input_stream (); |
| 2117 | 1985 |
| 1986 if (isp) | |
| 1987 { | |
| 1988 scanf_format_list fmt_list (fmt); | |
| 1989 | |
| 3640 | 1990 if (fmt_list.num_conversions () == -1) |
| 4468 | 1991 ::error ("%s: invalid format specified", who.c_str ()); |
| 3640 | 1992 else |
| 2117 | 1993 { |
| 5275 | 1994 octave_idx_type nr = -1; |
| 1995 octave_idx_type nc = -1; | |
| 3640 | 1996 |
| 1997 bool one_elt_size_spec; | |
| 1998 | |
| 4468 | 1999 get_size (size, nr, nc, one_elt_size_spec, who); |
| 3640 | 2000 |
| 2001 if (! error_state) | |
| 2002 retval = do_scanf (fmt_list, nr, nc, one_elt_size_spec, | |
| 4468 | 2003 conversion_count, who); |
| 2215 | 2004 } |
| 2005 } | |
| 2006 else | |
| 4468 | 2007 invalid_operation (who, "reading"); |
| 2572 | 2008 |
| 2009 return retval; | |
| 2010 } | |
| 2011 | |
| 2712 | 2012 bool |
| 2013 octave_base_stream::do_oscanf (const scanf_format_elt *elt, | |
| 4468 | 2014 octave_value& retval, const std::string& who) |
| 2572 | 2015 { |
| 2712 | 2016 bool quit = false; |
| 2215 | 2017 |
| 3523 | 2018 std::istream *isp = input_stream (); |
| 2215 | 2019 |
| 2020 if (isp) | |
| 2021 { | |
| 3523 | 2022 std::istream& is = *isp; |
| 2215 | 2023 |
| 3538 | 2024 std::ios::fmtflags flags = is.flags (); |
| 2215 | 2025 |
| 2026 if (elt) | |
| 2027 { | |
| 2028 const char *fmt = elt->text; | |
| 2029 | |
| 2030 bool discard = elt->discard; | |
| 2031 | |
| 2032 switch (elt->type) | |
| 2033 { | |
| 3483 | 2034 case scanf_format_elt::whitespace_conversion: |
| 2035 DO_WHITESPACE_CONVERSION (); | |
| 2036 break; | |
| 2037 | |
| 2038 case scanf_format_elt::literal_conversion: | |
| 2039 DO_LITERAL_CONVERSION (); | |
| 2040 break; | |
| 2041 | |
| 2215 | 2042 case '%': |
| 2043 { | |
| 3640 | 2044 DO_PCT_CONVERSION (); |
| 2045 | |
| 2046 if (! is) | |
| 2712 | 2047 quit = true; |
| 3640 | 2048 |
| 2215 | 2049 } |
| 2050 break; | |
| 2051 | |
| 3878 | 2052 case 'd': case 'i': |
| 2215 | 2053 { |
| 2054 int tmp; | |
| 2055 | |
| 3640 | 2056 if (OCTAVE_SCAN (is, *elt, &tmp)) |
| 2712 | 2057 { |
| 2058 if (! discard) | |
| 4233 | 2059 retval = tmp; |
| 2712 | 2060 } |
| 2061 else | |
| 2062 quit = true; | |
| 2215 | 2063 } |
| 2064 break; | |
| 2065 | |
| 3878 | 2066 case 'o': case 'u': case 'x': |
| 2067 { | |
| 2068 long int tmp; | |
| 2069 | |
| 2070 if (OCTAVE_SCAN (is, *elt, &tmp)) | |
| 2071 { | |
| 2072 if (! discard) | |
| 4254 | 2073 retval = tmp; |
| 3878 | 2074 } |
| 2075 else | |
| 2076 quit = true; | |
| 2077 } | |
| 2078 break; | |
| 2079 | |
| 2215 | 2080 case 'e': case 'f': case 'g': |
| 2081 { | |
| 2600 | 2082 double tmp; |
| 2083 | |
| 3640 | 2084 if (OCTAVE_SCAN (is, *elt, &tmp)) |
| 2712 | 2085 { |
| 2086 if (! discard) | |
| 2087 retval = tmp; | |
| 2088 } | |
| 2089 else | |
| 2090 quit = true; | |
| 2215 | 2091 } |
| 2092 break; | |
| 2093 | |
| 2094 case 'c': | |
| 2095 { | |
| 3483 | 2096 BEGIN_C_CONVERSION (); |
| 2097 | |
| 2098 if (! discard) | |
| 2099 retval = tmp; | |
| 2100 | |
| 2101 if (! is) | |
| 2712 | 2102 quit = true; |
| 2215 | 2103 |
| 2104 is.setf (flags); | |
| 2105 } | |
| 2106 break; | |
| 2107 | |
| 2108 case 's': | |
| 2109 { | |
| 3483 | 2110 BEGIN_S_CONVERSION (); |
| 2111 | |
| 2112 if (! discard) | |
| 2113 retval = tmp; | |
| 2572 | 2114 |
| 3268 | 2115 if (! is) |
| 2116 quit = true; | |
| 2215 | 2117 } |
| 2118 break; | |
| 2119 | |
| 3483 | 2120 case '[': case '^': |
| 2121 { | |
| 2122 BEGIN_CHAR_CLASS_CONVERSION (); | |
| 2123 | |
| 2124 if (! discard) | |
| 2125 retval = tmp; | |
| 2126 | |
| 2127 if (! is) | |
| 2128 quit = true; | |
| 2129 } | |
| 2130 break; | |
| 2131 | |
| 2132 case 'p': | |
| 4468 | 2133 error ("%s: unsupported format specifier", who.c_str ()); |
| 2215 | 2134 break; |
| 2135 | |
| 2136 default: | |
| 4468 | 2137 error ("%s: internal format error", who.c_str ()); |
| 2215 | 2138 break; |
| 2139 } | |
| 2140 } | |
| 2141 | |
| 2142 if (ok () && is.fail ()) | |
| 2143 { | |
| 4468 | 2144 error ("%s: read error", who.c_str ()); |
| 3483 | 2145 |
| 5775 | 2146 // FIXME -- is this the right thing to do? |
| 3342 | 2147 |
| 2148 if (interactive && name () == "stdin") | |
| 2215 | 2149 { |
| 2150 // Skip to end of line. | |
| 2151 | |
| 2152 bool err; | |
| 4468 | 2153 do_gets (-1, err, false, who); |
| 2215 | 2154 } |
| 2155 } | |
| 2156 } | |
| 2157 | |
| 2712 | 2158 return quit; |
| 2215 | 2159 } |
| 2160 | |
| 2161 octave_value_list | |
| 4468 | 2162 octave_base_stream::oscanf (const std::string& fmt, const std::string& who) |
| 2215 | 2163 { |
| 2164 octave_value_list retval; | |
| 2165 | |
| 3523 | 2166 std::istream *isp = input_stream (); |
| 2215 | 2167 |
| 2168 if (isp) | |
| 2169 { | |
| 3523 | 2170 std::istream& is = *isp; |
| 2215 | 2171 |
| 2172 scanf_format_list fmt_list (fmt); | |
| 2173 | |
| 2174 int nconv = fmt_list.num_conversions (); | |
| 2175 | |
| 3640 | 2176 if (nconv == -1) |
| 4468 | 2177 ::error ("%s: invalid format specified", who.c_str ()); |
| 3640 | 2178 else |
| 2215 | 2179 { |
| 3640 | 2180 is.clear (); |
| 2181 | |
| 2182 int len = fmt_list.length (); | |
| 2183 | |
| 2184 retval.resize (nconv+1, Matrix ()); | |
| 2185 | |
| 2186 const scanf_format_elt *elt = fmt_list.first (); | |
| 2187 | |
| 2188 int num_values = 0; | |
| 2189 | |
| 2190 bool quit = false; | |
| 2191 | |
| 5275 | 2192 for (octave_idx_type i = 0; i < len; i++) |
| 3640 | 2193 { |
| 2194 octave_value tmp; | |
| 2195 | |
| 4468 | 2196 quit = do_oscanf (elt, tmp, who); |
| 3640 | 2197 |
| 2198 if (quit) | |
| 2199 break; | |
| 2200 else | |
| 2201 { | |
| 2202 if (tmp.is_defined ()) | |
| 2203 retval (num_values++) = tmp; | |
| 2204 | |
| 2205 if (! ok ()) | |
| 2206 break; | |
| 2207 | |
| 2208 elt = fmt_list.next (nconv > 0); | |
| 2209 } | |
| 2210 } | |
| 2211 | |
| 4233 | 2212 retval(nconv) = num_values; |
| 3640 | 2213 |
| 2214 if (! quit) | |
| 2215 { | |
| 2216 // Pick up any trailing stuff. | |
| 2217 if (ok () && len > nconv) | |
| 2218 { | |
| 2219 octave_value tmp; | |
| 3704 | 2220 |
| 2221 elt = fmt_list.next (); | |
| 2222 | |
| 4468 | 2223 do_oscanf (elt, tmp, who); |
| 3640 | 2224 } |
| 2225 } | |
| 2117 | 2226 } |
| 2227 } | |
| 2228 else | |
| 4468 | 2229 invalid_operation (who, "reading"); |
| 2117 | 2230 |
| 2231 return retval; | |
| 2232 } | |
| 2233 | |
| 2234 // Functions that are defined for all output streams (output streams | |
| 2235 // are those that define os). | |
| 2236 | |
| 2237 int | |
| 2238 octave_base_stream::flush (void) | |
| 2239 { | |
| 2240 int retval = -1; | |
| 2241 | |
| 3523 | 2242 std::ostream *os = output_stream (); |
| 2117 | 2243 |
| 2244 if (os) | |
| 2245 { | |
| 2246 os->flush (); | |
| 2247 | |
| 2248 if (os->good ()) | |
| 2249 retval = 0; | |
| 2250 } | |
| 2251 else | |
| 2252 invalid_operation ("fflush", "writing"); | |
| 2253 | |
| 2254 return retval; | |
| 2255 } | |
| 2256 | |
| 2257 class | |
| 2258 printf_value_cache | |
| 2259 { | |
| 2260 public: | |
| 2261 | |
| 3653 | 2262 enum state { ok, conversion_error }; |
| 2117 | 2263 |
| 7352 | 2264 printf_value_cache (const octave_value_list& args, const std::string& who) |
| 2117 | 2265 : values (args), val_idx (0), elt_idx (0), |
| 2266 n_vals (values.length ()), n_elts (0), data (0), | |
| 7352 | 2267 curr_state (ok) |
| 2268 { | |
| 2269 for (octave_idx_type i = 0; i < values.length (); i++) | |
| 2270 { | |
| 2271 octave_value val = values(i); | |
| 2272 | |
| 2273 if (val.is_map () || val.is_cell () || val.is_object () | |
| 2274 || val.is_list ()) | |
| 2275 { | |
| 2276 gripe_wrong_type_arg (who, val); | |
| 2277 break; | |
| 2278 } | |
| 2279 } | |
| 2280 } | |
| 2117 | 2281 |
| 2282 ~printf_value_cache (void) { } | |
| 2283 | |
| 2284 // Get the current value as a double and advance the internal pointer. | |
| 2285 double double_value (void); | |
| 2286 | |
| 2287 // Get the current value as an int and advance the internal pointer. | |
| 2288 int int_value (void); | |
| 2289 | |
| 2290 // Get the current value as a string and advance the internal pointer. | |
| 3523 | 2291 std::string string_value (void); |
| 2117 | 2292 |
| 3145 | 2293 operator bool () const { return (curr_state == ok); } |
| 2117 | 2294 |
| 3653 | 2295 bool exhausted (void) { return (val_idx >= n_vals); } |
| 2117 | 2296 |
| 2297 private: | |
| 2298 | |
| 2299 const octave_value_list values; | |
| 2300 int val_idx; | |
| 2301 int elt_idx; | |
| 2302 int n_vals; | |
| 2303 int n_elts; | |
| 2304 const double *data; | |
| 4874 | 2305 NDArray curr_val; |
| 2117 | 2306 state curr_state; |
| 2307 | |
| 2308 // Must create value cache with values! | |
| 2309 | |
| 2310 printf_value_cache (void); | |
| 2311 | |
| 2312 // No copying! | |
| 2313 | |
| 2314 printf_value_cache (const printf_value_cache&); | |
| 2315 | |
| 2316 printf_value_cache& operator = (const printf_value_cache&); | |
| 2317 }; | |
| 2318 | |
| 2319 double | |
| 2320 printf_value_cache::double_value (void) | |
| 2321 { | |
| 2322 double retval = 0.0; | |
| 2323 | |
| 3711 | 2324 if (exhausted ()) |
| 2325 curr_state = conversion_error; | |
| 2326 | |
| 2327 while (! exhausted ()) | |
| 2117 | 2328 { |
| 2329 if (! data) | |
| 2330 { | |
| 2331 octave_value tmp_val = values (val_idx); | |
| 2332 | |
| 5476 | 2333 // Force string conversion here for compatibility. |
| 2334 | |
| 2335 curr_val = tmp_val.array_value (true); | |
| 2117 | 2336 |
| 2337 if (! error_state) | |
| 2338 { | |
| 2339 elt_idx = 0; | |
| 2340 n_elts = curr_val.length (); | |
| 2341 data = curr_val.data (); | |
| 2342 } | |
| 2343 else | |
| 2344 { | |
| 2345 curr_state = conversion_error; | |
| 2346 break; | |
| 2347 } | |
| 2348 } | |
| 2349 | |
| 2350 if (elt_idx < n_elts) | |
| 2351 { | |
| 3653 | 2352 retval = data[elt_idx++]; |
| 2353 | |
| 2354 if (elt_idx >= n_elts) | |
| 2355 { | |
| 2356 elt_idx = 0; | |
| 2357 val_idx++; | |
| 2358 data = 0; | |
| 2359 } | |
| 2360 | |
| 2117 | 2361 break; |
| 2362 } | |
| 2363 else | |
| 2364 { | |
| 2365 val_idx++; | |
| 2366 data = 0; | |
| 3969 | 2367 |
| 2368 if (n_elts == 0 && exhausted ()) | |
| 2369 curr_state = conversion_error; | |
| 2370 | |
| 2117 | 2371 continue; |
| 2372 } | |
| 2373 } | |
| 2374 | |
| 2375 return retval; | |
| 2376 } | |
| 2377 | |
| 2378 int | |
| 2379 printf_value_cache::int_value (void) | |
| 2380 { | |
| 2381 int retval = 0; | |
| 2382 | |
| 2383 double dval = double_value (); | |
| 2384 | |
| 2385 if (! error_state) | |
| 2386 { | |
| 2387 if (D_NINT (dval) == dval) | |
| 2388 retval = NINT (dval); | |
| 2389 else | |
| 2390 curr_state = conversion_error; | |
| 2391 } | |
| 2392 | |
| 2393 return retval; | |
| 2394 } | |
| 2395 | |
| 3536 | 2396 std::string |
| 2117 | 2397 printf_value_cache::string_value (void) |
| 2398 { | |
| 3523 | 2399 std::string retval; |
| 2117 | 2400 |
| 4425 | 2401 if (exhausted ()) |
| 2402 curr_state = conversion_error; | |
| 4257 | 2403 else |
| 2117 | 2404 { |
| 4425 | 2405 octave_value tval = values (val_idx++); |
| 2406 | |
| 2407 if (tval.rows () == 1) | |
| 2408 retval = tval.string_value (); | |
| 2409 else | |
| 2410 { | |
| 2411 // In the name of Matlab compatibility. | |
| 2412 | |
| 2413 charMatrix chm = tval.char_matrix_value (); | |
| 2414 | |
| 5275 | 2415 octave_idx_type nr = chm.rows (); |
| 2416 octave_idx_type nc = chm.columns (); | |
| 4425 | 2417 |
| 2418 int k = 0; | |
| 2419 | |
| 2420 retval.resize (nr * nc, '\0'); | |
| 2421 | |
| 5275 | 2422 for (octave_idx_type j = 0; j < nc; j++) |
| 2423 for (octave_idx_type i = 0; i < nr; i++) | |
| 4425 | 2424 retval[k++] = chm(i,j); |
| 2425 } | |
| 2426 | |
| 2427 if (error_state) | |
| 2428 curr_state = conversion_error; | |
| 2117 | 2429 } |
| 4257 | 2430 |
| 2117 | 2431 return retval; |
| 2432 } | |
| 2433 | |
| 2434 // Ugh again and again. | |
| 2435 | |
| 2572 | 2436 template <class T> |
| 3620 | 2437 int |
| 3523 | 2438 do_printf_conv (std::ostream& os, const char *fmt, int nsa, int sa_1, |
| 4468 | 2439 int sa_2, T arg, const std::string& who) |
| 2572 | 2440 { |
| 3620 | 2441 int retval = 0; |
| 2442 | |
| 2572 | 2443 switch (nsa) |
| 2444 { | |
| 2445 case 2: | |
| 3640 | 2446 retval = octave_format (os, fmt, sa_1, sa_2, arg); |
| 2572 | 2447 break; |
| 2448 | |
| 2449 case 1: | |
| 3640 | 2450 retval = octave_format (os, fmt, sa_1, arg); |
| 2572 | 2451 break; |
| 2452 | |
| 2453 case 0: | |
| 3640 | 2454 retval = octave_format (os, fmt, arg); |
| 2572 | 2455 break; |
| 2456 | |
| 2457 default: | |
| 4468 | 2458 ::error ("%s: internal error handling format", who.c_str ()); |
| 2572 | 2459 break; |
| 2460 } | |
| 3620 | 2461 |
| 2462 return retval; | |
| 2572 | 2463 } |
| 2464 | |
| 3620 | 2465 template int |
| 4468 | 2466 do_printf_conv (std::ostream&, const char*, int, int, int, int, |
| 2467 const std::string&); | |
| 2468 | |
| 2469 template int | |
| 2470 do_printf_conv (std::ostream&, const char*, int, int, int, long, | |
| 2471 const std::string&); | |
| 2472 | |
| 3878 | 2473 template int |
| 4468 | 2474 do_printf_conv (std::ostream&, const char*, int, int, int, unsigned int, |
| 2475 const std::string&); | |
| 2476 | |
| 2477 template int | |
| 2478 do_printf_conv (std::ostream&, const char*, int, int, int, unsigned long, | |
| 2479 const std::string&); | |
| 2480 | |
| 2481 template int | |
| 2482 do_printf_conv (std::ostream&, const char*, int, int, int, double, | |
| 2483 const std::string&); | |
| 2484 | |
| 2485 template int | |
| 2486 do_printf_conv (std::ostream&, const char*, int, int, int, const char*, | |
| 2487 const std::string&); | |
| 2117 | 2488 |
| 6492 | 2489 #define DO_DOUBLE_CONV(TQUAL) \ |
| 2490 do \ | |
| 2491 { \ | |
| 7199 | 2492 if (val > std::numeric_limits<TQUAL long>::max () \ |
| 2493 || val < std::numeric_limits<TQUAL long>::min ()) \ | |
| 6492 | 2494 { \ |
| 7199 | 2495 std::string tfmt = fmt; \ |
| 6492 | 2496 \ |
| 7199 | 2497 tfmt.replace (tfmt.rfind (elt->type), 1, ".f"); \ |
| 6492 | 2498 \ |
| 7199 | 2499 if (elt->modifier == 'l') \ |
| 2500 tfmt.replace (tfmt.rfind (elt->modifier), 1, ""); \ | |
| 2501 \ | |
| 2502 retval += do_printf_conv (os, tfmt.c_str (), nsa, sa_1, sa_2, \ | |
| 2503 val, who); \ | |
| 6492 | 2504 } \ |
| 2505 else \ | |
| 7199 | 2506 retval += do_printf_conv (os, fmt, nsa, sa_1, sa_2, \ |
| 2507 static_cast<TQUAL long> (val), who); \ | |
| 6492 | 2508 } \ |
| 2509 while (0) | |
| 2510 | |
| 2117 | 2511 int |
| 2512 octave_base_stream::do_printf (printf_format_list& fmt_list, | |
| 4468 | 2513 const octave_value_list& args, |
| 2514 const std::string& who) | |
| 2117 | 2515 { |
| 3620 | 2516 int retval = 0; |
| 2117 | 2517 |
| 3640 | 2518 int nconv = fmt_list.num_conversions (); |
| 2519 | |
| 3523 | 2520 std::ostream *osp = output_stream (); |
| 2117 | 2521 |
| 2522 if (osp) | |
| 2523 { | |
| 3523 | 2524 std::ostream& os = *osp; |
| 2117 | 2525 |
| 2526 const printf_format_elt *elt = fmt_list.first (); | |
| 2527 | |
| 7352 | 2528 printf_value_cache val_cache (args, who); |
| 2529 | |
| 2530 if (error_state) | |
| 2531 return retval; | |
| 2117 | 2532 |
| 2533 for (;;) | |
| 2534 { | |
| 4153 | 2535 OCTAVE_QUIT; |
| 2536 | |
| 2117 | 2537 if (elt) |
| 2538 { | |
| 3640 | 2539 // NSA is the number of `star' args to convert. |
| 2540 | |
| 2541 int nsa = (elt->fw < 0) + (elt->prec < 0); | |
| 2117 | 2542 |
| 2543 int sa_1 = 0; | |
| 2544 int sa_2 = 0; | |
| 2545 | |
| 2546 if (nsa > 0) | |
| 2547 { | |
| 2548 sa_1 = val_cache.int_value (); | |
| 2549 | |
| 2550 if (! val_cache) | |
| 2551 break; | |
| 2552 else | |
| 2553 { | |
| 2554 if (nsa > 1) | |
| 2555 { | |
| 2556 sa_2 = val_cache.int_value (); | |
| 2557 | |
| 2558 if (! val_cache) | |
| 2559 break; | |
| 2560 } | |
| 2561 } | |
| 2562 } | |
| 2563 | |
| 2564 const char *fmt = elt->text; | |
| 2565 | |
| 3640 | 2566 if (elt->type == '%') |
| 2567 { | |
| 2568 os << "%"; | |
| 2569 retval++; | |
| 2570 } | |
| 2571 else if (elt->args == 0 && elt->text) | |
| 2572 { | |
| 2573 os << elt->text; | |
| 2574 retval += strlen (elt->text); | |
| 2575 } | |
| 4257 | 2576 else if (elt->type == 's') |
| 3640 | 2577 { |
| 2578 std::string val = val_cache.string_value (); | |
| 2579 | |
| 2580 if (val_cache) | |
| 2581 retval += do_printf_conv (os, fmt, nsa, sa_1, | |
| 4468 | 2582 sa_2, val.c_str (), who); |
| 3640 | 2583 else |
| 2584 break; | |
| 2585 } | |
| 2117 | 2586 else |
| 2587 { | |
| 3640 | 2588 double val = val_cache.double_value (); |
| 2589 | |
| 2590 if (val_cache) | |
| 2117 | 2591 { |
| 6492 | 2592 if (lo_ieee_isnan (val) || xisinf (val)) |
| 4303 | 2593 { |
| 2594 std::string tfmt = fmt; | |
| 6865 | 2595 std::string::size_type i1, i2; |
| 2596 | |
| 2597 tfmt.replace ((i1 = tfmt.rfind (elt->type)), | |
| 2598 1, 1, 's'); | |
| 2599 | |
| 2600 if ((i2 = tfmt.rfind ('.')) != NPOS && i2 < i1) | |
| 2601 { | |
| 2602 tfmt.erase (i2, i1-i2); | |
| 2603 if (elt->prec < 0) | |
| 2604 nsa--; | |
| 2605 } | |
| 6492 | 2606 |
| 2607 const char *tval = xisinf (val) | |
| 2608 ? (val < 0 ? "-Inf" : "Inf") | |
| 2609 : (lo_ieee_is_NA (val) ? "NA" : "NaN"); | |
| 2610 | |
| 2611 retval += do_printf_conv (os, tfmt.c_str (), | |
| 2612 nsa, sa_1, sa_2, | |
| 2613 tval, who); | |
| 4303 | 2614 } |
| 2615 else | |
| 3640 | 2616 { |
| 6492 | 2617 char type = elt->type; |
| 2618 | |
| 2619 switch (type) | |
| 4303 | 2620 { |
| 2621 case 'd': case 'i': case 'c': | |
| 7227 | 2622 DO_DOUBLE_CONV (OCTAVE_EMPTY_CPP_ARG); |
| 4303 | 2623 break; |
| 2624 | |
| 2625 case 'o': case 'x': case 'X': case 'u': | |
| 6492 | 2626 DO_DOUBLE_CONV (unsigned); |
| 4303 | 2627 break; |
| 2628 | |
| 2629 case 'f': case 'e': case 'E': | |
| 2630 case 'g': case 'G': | |
| 2631 retval | |
| 2632 += do_printf_conv (os, fmt, nsa, sa_1, sa_2, | |
| 4468 | 2633 val, who); |
| 4303 | 2634 break; |
| 2635 | |
| 2636 default: | |
| 4468 | 2637 error ("%s: invalid format specifier", |
| 2638 who.c_str ()); | |
| 4303 | 2639 return -1; |
| 2640 break; | |
| 2641 } | |
| 3640 | 2642 } |
| 2117 | 2643 } |
| 2644 else | |
| 3620 | 2645 break; |
| 2117 | 2646 } |
| 2647 | |
| 3620 | 2648 if (! os) |
| 2117 | 2649 { |
| 4468 | 2650 error ("%s: write error", who.c_str ()); |
| 2117 | 2651 break; |
| 2652 } | |
| 2653 } | |
| 2654 else | |
| 2655 { | |
| 4468 | 2656 ::error ("%s: internal error handling format", who.c_str ()); |
| 2117 | 2657 retval = -1; |
| 2658 break; | |
| 2659 } | |
| 2660 | |
| 3640 | 2661 elt = fmt_list.next (nconv > 0 && ! val_cache.exhausted ()); |
| 2662 | |
| 2663 if (! elt || (val_cache.exhausted () && elt->args > 0)) | |
| 2664 break; | |
| 2665 } | |
| 2117 | 2666 } |
| 3640 | 2667 else |
| 4468 | 2668 invalid_operation (who, "writing"); |
| 2117 | 2669 |
| 2670 return retval; | |
| 2671 } | |
| 2672 | |
| 2673 int | |
| 3640 | 2674 octave_base_stream::printf (const std::string& fmt, |
| 4468 | 2675 const octave_value_list& args, |
| 2676 const std::string& who) | |
| 2117 | 2677 { |
| 3640 | 2678 int retval = 0; |
| 2679 | |
| 2680 printf_format_list fmt_list (fmt); | |
| 2681 | |
| 2682 if (fmt_list.num_conversions () == -1) | |
| 4468 | 2683 ::error ("%s: invalid format specified", who.c_str ()); |
| 2117 | 2684 else |
| 4468 | 2685 retval = do_printf (fmt_list, args, who); |
| 2117 | 2686 |
| 2687 return retval; | |
| 2688 } | |
| 2689 | |
| 2690 int | |
| 4468 | 2691 octave_base_stream::puts (const std::string& s, const std::string& who) |
| 2117 | 2692 { |
| 2693 int retval = -1; | |
| 2694 | |
| 3523 | 2695 std::ostream *osp = output_stream (); |
| 2117 | 2696 |
| 2697 if (osp) | |
| 2698 { | |
| 3523 | 2699 std::ostream& os = *osp; |
| 2117 | 2700 |
| 2701 os << s; | |
| 2702 | |
| 2703 if (os) | |
| 2704 { | |
| 5775 | 2705 // FIXME -- why does this seem to be necessary? |
| 2117 | 2706 // Without it, output from a loop like |
| 2707 // | |
| 2708 // for i = 1:100, fputs (stdout, "foo\n"); endfor | |
| 2709 // | |
| 2710 // doesn't seem to go to the pager immediately. | |
| 2711 | |
| 2712 os.flush (); | |
| 2713 | |
| 2714 if (os) | |
| 2715 retval = 0; | |
| 2716 else | |
| 4468 | 2717 error ("%s: write error", who.c_str ()); |
| 2117 | 2718 } |
| 2719 else | |
| 4468 | 2720 error ("%s: write error", who.c_str ()); |
| 2117 | 2721 } |
| 2722 else | |
| 4468 | 2723 invalid_operation (who, "writing"); |
| 2117 | 2724 |
| 2725 return retval; | |
| 2726 } | |
| 2727 | |
| 2728 // Return current error message for this stream. | |
| 2729 | |
| 3536 | 2730 std::string |
| 2435 | 2731 octave_base_stream::error (bool clear_err, int& err_num) |
| 2117 | 2732 { |
| 2435 | 2733 err_num = fail ? -1 : 0; |
| 2117 | 2734 |
| 3523 | 2735 std::string tmp = errmsg; |
| 2117 | 2736 |
| 2737 if (clear_err) | |
| 2738 clear (); | |
| 2739 | |
| 2740 return tmp; | |
| 2741 } | |
| 2742 | |
| 2743 void | |
| 4468 | 2744 octave_base_stream::invalid_operation (const std::string& who, const char *rw) |
| 2117 | 2745 { |
| 4468 | 2746 // Note that this is not ::error () ! |
| 2747 | |
| 6297 | 2748 error (who, std::string ("stream not open for ") + rw); |
| 2117 | 2749 } |
| 2750 | |
| 3552 | 2751 octave_stream::octave_stream (octave_base_stream *bs) |
| 3340 | 2752 : rep (bs) |
| 2753 { | |
| 2754 if (rep) | |
| 2755 rep->count = 1; | |
| 2756 } | |
| 2757 | |
| 2758 octave_stream::~octave_stream (void) | |
| 2759 { | |
| 2760 if (rep && --rep->count == 0) | |
| 2761 delete rep; | |
| 2762 } | |
| 2763 | |
| 2764 octave_stream::octave_stream (const octave_stream& s) | |
| 2765 : rep (s.rep) | |
| 2766 { | |
| 2767 if (rep) | |
| 2768 rep->count++; | |
| 2769 } | |
| 2770 | |
| 2771 octave_stream& | |
| 2772 octave_stream::operator = (const octave_stream& s) | |
| 2773 { | |
| 2774 if (rep != s.rep) | |
| 2775 { | |
| 2776 if (rep && --rep->count == 0) | |
| 2777 delete rep; | |
| 2778 | |
| 2779 rep = s.rep; | |
| 2780 | |
| 2781 if (rep) | |
| 2782 rep->count++; | |
| 2783 } | |
| 2784 | |
| 2785 return *this; | |
| 2786 } | |
| 2787 | |
| 2117 | 2788 int |
| 2789 octave_stream::flush (void) | |
| 2790 { | |
| 2791 int retval = -1; | |
| 2792 | |
| 5659 | 2793 if (stream_ok ()) |
| 2117 | 2794 retval = rep->flush (); |
| 2795 | |
| 2796 return retval; | |
| 2797 } | |
| 2798 | |
| 3536 | 2799 std::string |
| 5275 | 2800 octave_stream::getl (octave_idx_type max_len, bool& err, const std::string& who) |
| 2117 | 2801 { |
| 3523 | 2802 std::string retval; |
| 2117 | 2803 |
| 5659 | 2804 if (stream_ok ()) |
| 4468 | 2805 retval = rep->getl (max_len, err, who); |
| 2117 | 2806 |
| 2807 return retval; | |
| 2808 } | |
| 2809 | |
| 3536 | 2810 std::string |
| 4468 | 2811 octave_stream::getl (const octave_value& tc_max_len, bool& err, |
| 2812 const std::string& who) | |
| 2117 | 2813 { |
| 3523 | 2814 std::string retval; |
| 2117 | 2815 |
| 2816 err = false; | |
| 2817 | |
| 2818 int conv_err = 0; | |
| 2819 | |
| 6345 | 2820 int max_len = -1; |
| 2821 | |
| 2822 if (tc_max_len.is_defined ()) | |
| 2117 | 2823 { |
| 6345 | 2824 max_len = convert_to_valid_int (tc_max_len, conv_err); |
| 2825 | |
| 2826 if (conv_err || max_len < 0) | |
| 2827 { | |
| 2828 err = true; | |
| 2829 ::error ("%s: invalid maximum length specified", who.c_str ()); | |
| 2830 } | |
| 2117 | 2831 } |
| 6345 | 2832 |
| 2833 if (! error_state) | |
| 4468 | 2834 retval = getl (max_len, err, who); |
| 2117 | 2835 |
| 2836 return retval; | |
| 2837 } | |
| 2838 | |
| 3536 | 2839 std::string |
| 5275 | 2840 octave_stream::gets (octave_idx_type max_len, bool& err, const std::string& who) |
| 2117 | 2841 { |
| 3523 | 2842 std::string retval; |
| 2117 | 2843 |
| 5659 | 2844 if (stream_ok ()) |
| 4468 | 2845 retval = rep->gets (max_len, err, who); |
| 2117 | 2846 |
| 2847 return retval; | |
| 2848 } | |
| 2849 | |
| 3536 | 2850 std::string |
| 4468 | 2851 octave_stream::gets (const octave_value& tc_max_len, bool& err, |
| 2852 const std::string& who) | |
| 2117 | 2853 { |
| 3523 | 2854 std::string retval; |
| 2117 | 2855 |
| 2856 err = false; | |
| 2857 | |
| 2858 int conv_err = 0; | |
| 2859 | |
| 6345 | 2860 int max_len = -1; |
| 2861 | |
| 2862 if (tc_max_len.is_defined ()) | |
| 2117 | 2863 { |
| 6345 | 2864 max_len = convert_to_valid_int (tc_max_len, conv_err); |
| 2865 | |
| 2866 if (conv_err || max_len < 0) | |
| 2867 { | |
| 2868 err = true; | |
| 2869 ::error ("%s: invalid maximum length specified", who.c_str ()); | |
| 2870 } | |
| 2117 | 2871 } |
| 6345 | 2872 |
| 2873 if (! error_state) | |
| 4468 | 2874 retval = gets (max_len, err, who); |
| 2117 | 2875 |
| 2876 return retval; | |
| 2877 } | |
| 2878 | |
| 2879 int | |
| 4797 | 2880 octave_stream::seek (long offset, int origin) |
| 2117 | 2881 { |
| 5065 | 2882 int status = -1; |
| 2117 | 2883 |
| 5659 | 2884 if (stream_ok ()) |
| 4889 | 2885 { |
| 2886 clearerr (); | |
| 2887 | |
| 5065 | 2888 long orig_pos = rep->tell (); |
| 2889 | |
| 2890 status = rep->seek (offset, origin); | |
| 2891 | |
| 2892 if (status == 0) | |
| 2893 { | |
| 2894 long save_pos = rep->tell (); | |
| 2895 | |
| 2896 rep->seek (0, SEEK_END); | |
| 2897 | |
| 2898 long pos_eof = rep->tell (); | |
| 2899 | |
| 2900 // I don't think save_pos can be less than zero, but we'll | |
| 2901 // check anyway... | |
| 2902 | |
| 2903 if (save_pos > pos_eof || save_pos < 0) | |
| 2904 { | |
| 2905 // Seek outside bounds of file. Failure should leave | |
| 2906 // position unchanged. | |
| 2907 | |
| 2908 rep->seek (orig_pos, SEEK_SET); | |
| 2909 | |
| 2910 status = -1; | |
| 2911 } | |
| 2912 else | |
| 2913 { | |
| 2914 // Is it possible for this to fail? We are just | |
| 2915 // returning to a position after the first successful | |
| 2916 // seek. | |
| 2917 | |
| 2918 rep->seek (save_pos, SEEK_SET); | |
| 2919 } | |
| 2920 } | |
| 4889 | 2921 } |
| 2117 | 2922 |
| 5065 | 2923 return status; |
| 2117 | 2924 } |
| 2925 | |
| 2926 int | |
| 2927 octave_stream::seek (const octave_value& tc_offset, | |
| 2928 const octave_value& tc_origin) | |
| 2929 { | |
| 2930 int retval = -1; | |
| 2931 | |
| 4797 | 2932 long xoffset = tc_offset.long_value (true); |
| 4645 | 2933 |
| 2934 if (! error_state) | |
| 2117 | 2935 { |
| 4645 | 2936 int conv_err = 0; |
| 2937 | |
| 4797 | 2938 int origin = SEEK_SET; |
| 2117 | 2939 |
| 2341 | 2940 if (tc_origin.is_string ()) |
| 2117 | 2941 { |
| 3523 | 2942 std::string xorigin = tc_origin.string_value (); |
| 2341 | 2943 |
| 2944 if (xorigin == "bof") | |
| 4797 | 2945 origin = SEEK_SET; |
| 2341 | 2946 else if (xorigin == "cof") |
| 4797 | 2947 origin = SEEK_CUR; |
| 2341 | 2948 else if (xorigin == "eof") |
| 4797 | 2949 origin = SEEK_END; |
| 2117 | 2950 else |
| 2951 conv_err = -1; | |
| 2952 } | |
| 2341 | 2953 else |
| 2954 { | |
| 2955 int xorigin = convert_to_valid_int (tc_origin, conv_err); | |
| 2956 | |
| 2957 if (! conv_err) | |
| 2958 { | |
| 2959 if (xorigin == -1) | |
| 4797 | 2960 origin = SEEK_SET; |
| 2341 | 2961 else if (xorigin == 0) |
| 4797 | 2962 origin = SEEK_CUR; |
| 2341 | 2963 else if (xorigin == 1) |
| 4797 | 2964 origin = SEEK_END; |
| 2341 | 2965 else |
| 2966 conv_err = -1; | |
| 2967 } | |
| 2968 } | |
| 2117 | 2969 |
| 2970 if (! conv_err) | |
| 5065 | 2971 { |
| 2972 retval = seek (xoffset, origin); | |
| 2973 | |
| 2974 if (retval != 0) | |
| 2975 error ("fseek: failed to seek to requested position"); | |
| 2976 } | |
| 2117 | 2977 else |
| 2978 error ("fseek: invalid value for origin"); | |
| 2979 } | |
| 2980 else | |
| 2981 error ("fseek: invalid value for offset"); | |
| 2982 | |
| 2983 return retval; | |
| 2984 } | |
| 2985 | |
| 4797 | 2986 long |
| 2987 octave_stream::tell (void) | |
| 2117 | 2988 { |
| 4797 | 2989 long retval = -1; |
| 2117 | 2990 |
| 5659 | 2991 if (stream_ok ()) |
| 2117 | 2992 retval = rep->tell (); |
| 2993 | |
| 2994 return retval; | |
| 2995 } | |
| 2996 | |
| 2997 int | |
| 2998 octave_stream::rewind (void) | |
| 2999 { | |
| 6296 | 3000 return seek (0, SEEK_SET); |
| 2117 | 3001 } |
| 3002 | |
| 3340 | 3003 bool |
| 3004 octave_stream::is_open (void) const | |
| 3005 { | |
| 3006 bool retval = false; | |
| 3007 | |
| 5659 | 3008 if (stream_ok ()) |
| 3340 | 3009 retval = rep->is_open (); |
| 3010 | |
| 3011 return retval; | |
| 3012 } | |
| 3013 | |
| 3014 void | |
| 3015 octave_stream::close (void) | |
| 3016 { | |
| 5659 | 3017 if (stream_ok ()) |
| 3340 | 3018 rep->close (); |
| 3019 } | |
| 3020 | |
| 4944 | 3021 template <class RET_T, class READ_T> |
| 2117 | 3022 octave_value |
| 5275 | 3023 do_read (octave_stream& strm, octave_idx_type nr, octave_idx_type nc, octave_idx_type block_size, |
| 3024 octave_idx_type skip, bool do_float_fmt_conv, | |
| 3025 oct_mach_info::float_format from_flt_fmt, octave_idx_type& count) | |
| 2117 | 3026 { |
| 3027 octave_value retval; | |
| 3028 | |
| 4944 | 3029 RET_T nda; |
| 3030 | |
| 3031 count = 0; | |
| 3032 | |
| 3033 typename octave_array_type_traits<RET_T>::element_type elt_zero | |
| 3034 = typename octave_array_type_traits<RET_T>::element_type (); | |
| 3035 | |
| 3036 typename octave_array_type_traits<RET_T>::element_type *dat = 0; | |
| 3037 | |
| 5275 | 3038 octave_idx_type max_size = 0; |
| 3039 | |
| 3040 octave_idx_type final_nr = 0; | |
| 3041 octave_idx_type final_nc = 1; | |
| 4944 | 3042 |
| 3043 if (nr > 0) | |
| 3044 { | |
| 3045 if (nc > 0) | |
| 3046 { | |
| 3047 nda.resize (dim_vector (nr, nc), elt_zero); | |
| 3048 dat = nda.fortran_vec (); | |
| 3049 max_size = nr * nc; | |
| 3050 } | |
| 3051 else | |
| 3052 { | |
| 3053 nda.resize (dim_vector (nr, 32), elt_zero); | |
| 3054 dat = nda.fortran_vec (); | |
| 3055 max_size = nr * 32; | |
| 3056 } | |
| 3057 } | |
| 3058 else | |
| 3059 { | |
| 3060 nda.resize (dim_vector (32, 1), elt_zero); | |
| 3061 dat = nda.fortran_vec (); | |
| 3062 max_size = 32; | |
| 3063 } | |
| 3064 | |
| 5775 | 3065 // FIXME -- byte order for Cray? |
| 4944 | 3066 |
| 3067 bool swap = false; | |
| 3068 | |
| 3069 if (oct_mach_info::words_big_endian ()) | |
| 3070 swap = (from_flt_fmt == oct_mach_info::flt_fmt_ieee_little_endian | |
| 3071 || from_flt_fmt == oct_mach_info::flt_fmt_vax_g | |
| 3072 || from_flt_fmt == oct_mach_info::flt_fmt_vax_g); | |
| 3073 else | |
| 3074 swap = (from_flt_fmt == oct_mach_info::flt_fmt_ieee_big_endian); | |
| 3075 | |
| 3076 union | |
| 3077 { | |
| 3078 char buf[sizeof (typename octave_type_traits<READ_T>::val_type)]; | |
| 3079 typename octave_type_traits<READ_T>::val_type val; | |
| 3080 } u; | |
| 3081 | |
| 3082 std::istream *isp = strm.input_stream (); | |
| 3083 | |
| 3084 if (isp) | |
| 3085 { | |
| 3086 std::istream& is = *isp; | |
| 3087 | |
| 5275 | 3088 octave_idx_type elts_read = 0; |
| 4944 | 3089 |
| 3090 for (;;) | |
| 3091 { | |
| 5775 | 3092 // FIXME -- maybe there should be a special case for |
| 4944 | 3093 // skip == 0. |
| 3094 | |
| 3095 if (is) | |
| 3096 { | |
| 3097 if (nr > 0 && nc > 0 && count == max_size) | |
| 3098 { | |
| 3099 final_nr = nr; | |
| 3100 final_nc = nc; | |
| 3101 | |
| 3102 break; | |
| 3103 } | |
| 3104 | |
| 3105 is.read (u.buf, sizeof (typename octave_type_traits<READ_T>::val_type)); | |
| 3106 | |
| 3107 // We only swap bytes for integer types. For float | |
| 3108 // types, the format conversion will also handle byte | |
| 3109 // swapping. | |
| 3110 | |
| 3111 if (swap) | |
| 3112 swap_bytes<sizeof (typename octave_type_traits<READ_T>::val_type)> (u.buf); | |
| 3113 else if (do_float_fmt_conv) | |
| 3114 do_float_format_conversion | |
| 3115 (u.buf, | |
| 3116 sizeof (typename octave_type_traits<READ_T>::val_type), | |
| 3117 1, from_flt_fmt, oct_mach_info::float_format ()); | |
| 3118 | |
| 3119 typename octave_array_type_traits<RET_T>::element_type tmp | |
| 3120 = static_cast <typename octave_array_type_traits<RET_T>::element_type> (u.val); | |
| 3121 | |
| 5030 | 3122 if (is) |
| 4944 | 3123 { |
| 5030 | 3124 if (count == max_size) |
| 4944 | 3125 { |
| 5030 | 3126 max_size *= 2; |
| 3127 | |
| 3128 if (nr > 0) | |
| 3129 nda.resize (dim_vector (nr, max_size / nr), | |
| 3130 elt_zero); | |
| 3131 else | |
| 3132 nda.resize (dim_vector (max_size, 1), elt_zero); | |
| 3133 | |
| 3134 dat = nda.fortran_vec (); | |
| 4944 | 3135 } |
| 3136 | |
| 5030 | 3137 dat[count++] = tmp; |
| 3138 | |
| 3139 elts_read++; | |
| 3140 } | |
| 3141 | |
|
7538
2c4b0cbda85a
oct-stream.cc (do_read): stop reading if seek fails
John W. Eaton <jwe@octave.org>
parents:
7433
diff
changeset
|
3142 int seek_status = 0; |
|
2c4b0cbda85a
oct-stream.cc (do_read): stop reading if seek fails
John W. Eaton <jwe@octave.org>
parents:
7433
diff
changeset
|
3143 |
| 5030 | 3144 if (skip != 0 && elts_read == block_size) |
| 3145 { | |
|
7538
2c4b0cbda85a
oct-stream.cc (do_read): stop reading if seek fails
John W. Eaton <jwe@octave.org>
parents:
7433
diff
changeset
|
3146 seek_status = strm.seek (skip, SEEK_CUR); |
| 5030 | 3147 elts_read = 0; |
| 3148 } | |
| 3149 | |
|
7538
2c4b0cbda85a
oct-stream.cc (do_read): stop reading if seek fails
John W. Eaton <jwe@octave.org>
parents:
7433
diff
changeset
|
3150 if (is.eof () || seek_status < 0) |
| 5030 | 3151 { |
| 3152 if (nr > 0) | |
| 4944 | 3153 { |
| 5030 | 3154 if (count > nr) |
| 4944 | 3155 { |
| 5030 | 3156 final_nr = nr; |
| 3157 final_nc = (count - 1) / nr + 1; | |
| 4944 | 3158 } |
| 3159 else | |
| 3160 { | |
| 3161 final_nr = count; | |
| 3162 final_nc = 1; | |
| 3163 } | |
| 3164 } | |
| 5030 | 3165 else |
| 3166 { | |
| 3167 final_nr = count; | |
| 3168 final_nc = 1; | |
| 3169 } | |
| 3170 | |
| 4944 | 3171 break; |
| 3172 } | |
| 3173 } | |
| 5030 | 3174 else if (is.eof ()) |
| 3175 break; | |
| 4944 | 3176 } |
| 3177 } | |
| 3178 | |
| 5030 | 3179 nda.resize (dim_vector (final_nr, final_nc), elt_zero); |
| 3180 | |
| 3181 retval = nda; | |
| 4944 | 3182 |
| 3183 return retval; | |
| 3184 } | |
| 3185 | |
| 3186 #define DO_READ_VAL_TEMPLATE(RET_T, READ_T) \ | |
| 3187 template octave_value \ | |
| 5275 | 3188 do_read<RET_T, READ_T> (octave_stream&, octave_idx_type, octave_idx_type, octave_idx_type, octave_idx_type, bool, \ |
| 3189 oct_mach_info::float_format, octave_idx_type&) | |
| 4944 | 3190 |
| 5775 | 3191 // FIXME -- should we only have float if it is a different |
| 4944 | 3192 // size from double? |
| 3193 | |
| 3194 #define INSTANTIATE_DO_READ(VAL_T) \ | |
| 3195 DO_READ_VAL_TEMPLATE (VAL_T, octave_int8); \ | |
| 3196 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint8); \ | |
| 3197 DO_READ_VAL_TEMPLATE (VAL_T, octave_int16); \ | |
| 3198 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint16); \ | |
| 3199 DO_READ_VAL_TEMPLATE (VAL_T, octave_int32); \ | |
| 3200 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint32); \ | |
| 3201 DO_READ_VAL_TEMPLATE (VAL_T, octave_int64); \ | |
| 3202 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint64); \ | |
| 3203 DO_READ_VAL_TEMPLATE (VAL_T, float); \ | |
| 3204 DO_READ_VAL_TEMPLATE (VAL_T, double); \ | |
| 3205 DO_READ_VAL_TEMPLATE (VAL_T, char); \ | |
| 3206 DO_READ_VAL_TEMPLATE (VAL_T, signed char); \ | |
| 3207 DO_READ_VAL_TEMPLATE (VAL_T, unsigned char) | |
| 3208 | |
| 4970 | 3209 INSTANTIATE_DO_READ (int8NDArray); |
| 3210 INSTANTIATE_DO_READ (uint8NDArray); | |
| 3211 INSTANTIATE_DO_READ (int16NDArray); | |
| 3212 INSTANTIATE_DO_READ (uint16NDArray); | |
| 3213 INSTANTIATE_DO_READ (int32NDArray); | |
| 3214 INSTANTIATE_DO_READ (uint32NDArray); | |
| 3215 INSTANTIATE_DO_READ (int64NDArray); | |
| 3216 INSTANTIATE_DO_READ (uint64NDArray); | |
| 3217 // INSTANTIATE_DO_READ (floatNDArray); | |
| 3218 INSTANTIATE_DO_READ (NDArray); | |
| 3219 INSTANTIATE_DO_READ (charNDArray); | |
| 5780 | 3220 INSTANTIATE_DO_READ (boolNDArray); |
| 4944 | 3221 |
| 5275 | 3222 typedef octave_value (*read_fptr) (octave_stream&, octave_idx_type, octave_idx_type, octave_idx_type, octave_idx_type, bool, |
| 3223 oct_mach_info::float_format ffmt, octave_idx_type&); | |
| 4944 | 3224 |
| 7433 | 3225 NO_INSTANTIATE_ARRAY_SORT (read_fptr); |
| 6708 | 3226 INSTANTIATE_ARRAY (read_fptr,); |
| 4944 | 3227 template class Array2<read_fptr>; |
| 3228 | |
| 3229 #define FILL_TABLE_ROW(R, VAL_T) \ | |
| 3230 read_fptr_table(R,oct_data_conv::dt_int8) = do_read<VAL_T, octave_int8>; \ | |
| 3231 read_fptr_table(R,oct_data_conv::dt_uint8) = do_read<VAL_T, octave_uint8>; \ | |
| 3232 read_fptr_table(R,oct_data_conv::dt_int16) = do_read<VAL_T, octave_int16>; \ | |
| 3233 read_fptr_table(R,oct_data_conv::dt_uint16) = do_read<VAL_T, octave_uint16>; \ | |
| 3234 read_fptr_table(R,oct_data_conv::dt_int32) = do_read<VAL_T, octave_int32>; \ | |
| 3235 read_fptr_table(R,oct_data_conv::dt_uint32) = do_read<VAL_T, octave_uint32>; \ | |
| 3236 read_fptr_table(R,oct_data_conv::dt_int64) = do_read<VAL_T, octave_int64>; \ | |
| 3237 read_fptr_table(R,oct_data_conv::dt_uint64) = do_read<VAL_T, octave_uint64>; \ | |
| 3238 read_fptr_table(R,oct_data_conv::dt_single) = do_read<VAL_T, float>; \ | |
| 3239 read_fptr_table(R,oct_data_conv::dt_double) = do_read<VAL_T, double>; \ | |
| 3240 read_fptr_table(R,oct_data_conv::dt_char) = do_read<VAL_T, char>; \ | |
| 3241 read_fptr_table(R,oct_data_conv::dt_schar) = do_read<VAL_T, signed char>; \ | |
| 4970 | 3242 read_fptr_table(R,oct_data_conv::dt_uchar) = do_read<VAL_T, unsigned char>; \ |
| 3243 read_fptr_table(R,oct_data_conv::dt_logical) = do_read<VAL_T, unsigned char> | |
| 4944 | 3244 |
| 3245 octave_value | |
| 5275 | 3246 octave_stream::read (const Array<double>& size, octave_idx_type block_size, |
| 4944 | 3247 oct_data_conv::data_type input_type, |
| 3248 oct_data_conv::data_type output_type, | |
| 5275 | 3249 octave_idx_type skip, oct_mach_info::float_format ffmt, |
| 3250 octave_idx_type& char_count) | |
| 4944 | 3251 { |
| 3252 static bool initialized = false; | |
| 3253 | |
| 3254 // Table function pointers for return types x read types. | |
| 3255 | |
| 4970 | 3256 static Array2<read_fptr> read_fptr_table (oct_data_conv::dt_unknown, 14, 0); |
| 4944 | 3257 |
| 3258 if (! initialized) | |
| 3259 { | |
| 3260 FILL_TABLE_ROW (oct_data_conv::dt_int8, int8NDArray); | |
| 3261 FILL_TABLE_ROW (oct_data_conv::dt_uint8, uint8NDArray); | |
| 3262 FILL_TABLE_ROW (oct_data_conv::dt_int16, int16NDArray); | |
| 3263 FILL_TABLE_ROW (oct_data_conv::dt_uint16, uint16NDArray); | |
| 3264 FILL_TABLE_ROW (oct_data_conv::dt_int32, int32NDArray); | |
| 3265 FILL_TABLE_ROW (oct_data_conv::dt_uint32, uint32NDArray); | |
| 3266 FILL_TABLE_ROW (oct_data_conv::dt_int64, int64NDArray); | |
| 3267 FILL_TABLE_ROW (oct_data_conv::dt_uint64, uint64NDArray); | |
| 3268 FILL_TABLE_ROW (oct_data_conv::dt_double, NDArray); | |
| 3269 FILL_TABLE_ROW (oct_data_conv::dt_char, charNDArray); | |
| 3270 FILL_TABLE_ROW (oct_data_conv::dt_schar, charNDArray); | |
| 3271 FILL_TABLE_ROW (oct_data_conv::dt_uchar, charNDArray); | |
| 4970 | 3272 FILL_TABLE_ROW (oct_data_conv::dt_logical, boolNDArray); |
| 4944 | 3273 |
| 3274 initialized = true; | |
| 3275 } | |
| 3276 | |
| 3277 octave_value retval; | |
| 3278 | |
| 5659 | 3279 if (stream_ok ()) |
| 4944 | 3280 { |
| 5775 | 3281 // FIXME -- we may eventually want to make this extensible. |
| 3282 | |
| 3283 // FIXME -- we need a better way to ensure that this | |
| 4944 | 3284 // numbering stays consistent with the order of the elements in the |
| 3285 // data_type enum in the oct_data_conv class. | |
| 3286 | |
| 3287 char_count = 0; | |
| 3288 | |
| 5275 | 3289 octave_idx_type nr = -1; |
| 3290 octave_idx_type nc = -1; | |
| 4944 | 3291 |
| 3292 bool ignore; | |
| 3293 | |
| 3294 get_size (size, nr, nc, ignore, "fread"); | |
| 3295 | |
| 3296 if (! error_state) | |
| 3297 { | |
| 3298 if (nr == 0 || nc == 0) | |
| 3299 retval = Matrix (nr, nc); | |
| 3300 else | |
| 3301 { | |
| 3302 if (ffmt == oct_mach_info::flt_fmt_unknown) | |
| 3303 ffmt = float_format (); | |
| 3304 | |
| 3305 read_fptr fcn = read_fptr_table (output_type, input_type); | |
| 3306 | |
| 3307 bool do_float_fmt_conv = ((input_type == oct_data_conv::dt_double | |
| 3308 || input_type == oct_data_conv::dt_single) | |
| 3309 && ffmt != float_format ()); | |
| 3310 | |
| 3311 if (fcn) | |
| 3312 { | |
| 3313 retval = (*fcn) (*this, nr, nc, block_size, skip, | |
| 3314 do_float_fmt_conv, ffmt, char_count); | |
| 3315 | |
| 5775 | 3316 // FIXME -- kluge! |
| 4944 | 3317 |
| 3318 if (! error_state | |
| 3319 && (output_type == oct_data_conv::dt_char | |
| 3320 || output_type == oct_data_conv::dt_schar | |
| 3321 || output_type == oct_data_conv::dt_uchar)) | |
| 3322 retval = octave_value (retval.char_matrix_value (), true); | |
| 3323 } | |
| 3324 else | |
| 3325 error ("fread: unable to read and convert requested types"); | |
| 3326 } | |
| 3327 } | |
| 3328 else | |
| 3329 invalid_operation ("fread", "reading"); | |
| 3330 } | |
| 2117 | 3331 |
| 3332 return retval; | |
| 3333 } | |
| 3334 | |
| 5275 | 3335 octave_idx_type |
| 3336 octave_stream::write (const octave_value& data, octave_idx_type block_size, | |
| 3337 oct_data_conv::data_type output_type, octave_idx_type skip, | |
| 2317 | 3338 oct_mach_info::float_format flt_fmt) |
| 2117 | 3339 { |
| 5275 | 3340 octave_idx_type retval = -1; |
| 2117 | 3341 |
| 5659 | 3342 if (stream_ok ()) |
| 4944 | 3343 { |
| 3344 if (! error_state) | |
| 3345 { | |
| 3346 if (flt_fmt == oct_mach_info::flt_fmt_unknown) | |
| 3347 flt_fmt = float_format (); | |
| 3348 | |
| 5275 | 3349 octave_idx_type status = data.write (*this, block_size, output_type, |
| 4944 | 3350 skip, flt_fmt); |
| 3351 | |
| 3352 if (status < 0) | |
| 3353 error ("fwrite: write error"); | |
| 3354 else | |
| 3355 retval = status; | |
| 3356 } | |
| 3357 else | |
| 3358 invalid_operation ("fwrite", "writing"); | |
| 3359 } | |
| 2117 | 3360 |
| 3361 return retval; | |
| 3362 } | |
| 3363 | |
| 4944 | 3364 template <class T> |
| 3365 void | |
| 3366 write_int (std::ostream& os, bool swap, const T& val) | |
| 3367 { | |
| 3368 typename octave_type_traits<T>::val_type tmp = val.value (); | |
| 3369 | |
| 3370 if (swap) | |
| 3371 swap_bytes<sizeof (typename octave_type_traits<T>::val_type)> (&tmp); | |
| 3372 | |
| 3373 os.write (reinterpret_cast<const char *> (&tmp), | |
| 3374 sizeof (typename octave_type_traits<T>::val_type)); | |
| 3375 } | |
| 3376 | |
| 3377 template void write_int (std::ostream&, bool, const octave_int8&); | |
| 3378 template void write_int (std::ostream&, bool, const octave_uint8&); | |
| 3379 template void write_int (std::ostream&, bool, const octave_int16&); | |
| 3380 template void write_int (std::ostream&, bool, const octave_uint16&); | |
| 3381 template void write_int (std::ostream&, bool, const octave_int32&); | |
| 3382 template void write_int (std::ostream&, bool, const octave_uint32&); | |
| 3383 template void write_int (std::ostream&, bool, const octave_int64&); | |
| 3384 template void write_int (std::ostream&, bool, const octave_uint64&); | |
| 3385 | |
| 3386 template <class T> | |
| 3387 static inline bool | |
| 3388 do_write (std::ostream& os, const T& val, oct_data_conv::data_type output_type, | |
| 3389 oct_mach_info::float_format flt_fmt, bool swap, | |
| 3390 bool do_float_conversion) | |
| 3391 { | |
| 3392 bool retval = true; | |
| 3393 | |
| 3394 // For compatibility, Octave converts to the output type, then | |
| 3395 // writes. This means that truncation happens on the conversion. | |
| 3396 // For example, the following program prints 0: | |
| 3397 // | |
| 3398 // x = int8 (-1) | |
| 3399 // f = fopen ("foo.dat", "w"); | |
| 3400 // fwrite (f, x, "unsigned char"); | |
| 3401 // fclose (f); | |
| 3402 // f = fopen ("foo.dat", "r"); | |
| 3403 // y = fread (f, 1, "unsigned char"); | |
| 3404 // printf ("%d\n", y); | |
| 3405 | |
| 3406 switch (output_type) | |
| 3407 { | |
| 3408 case oct_data_conv::dt_char: | |
| 3409 case oct_data_conv::dt_schar: | |
| 3410 case oct_data_conv::dt_int8: | |
| 3411 write_int (os, swap, octave_int8 (val)); | |
| 3412 break; | |
| 3413 | |
| 3414 case oct_data_conv::dt_uchar: | |
| 3415 case oct_data_conv::dt_uint8: | |
| 3416 write_int (os, swap, octave_uint8 (val)); | |
| 3417 break; | |
| 3418 | |
| 3419 case oct_data_conv::dt_int16: | |
| 3420 write_int (os, swap, octave_int16 (val)); | |
| 3421 break; | |
| 3422 | |
| 3423 case oct_data_conv::dt_uint16: | |
| 3424 write_int (os, swap, octave_uint16 (val)); | |
| 3425 break; | |
| 3426 | |
| 3427 case oct_data_conv::dt_int32: | |
| 3428 write_int (os, swap, octave_int32 (val)); | |
| 3429 break; | |
| 3430 | |
| 3431 case oct_data_conv::dt_uint32: | |
| 3432 write_int (os, swap, octave_uint32 (val)); | |
| 3433 break; | |
| 3434 | |
| 3435 case oct_data_conv::dt_int64: | |
| 3436 write_int (os, swap, octave_int64 (val)); | |
| 3437 break; | |
| 3438 | |
| 3439 case oct_data_conv::dt_uint64: | |
| 3440 write_int (os, swap, octave_uint64 (val)); | |
| 3441 break; | |
| 3442 | |
| 3443 case oct_data_conv::dt_single: | |
| 3444 { | |
| 3445 float f = static_cast<float> (val); | |
| 3446 | |
| 3447 if (do_float_conversion) | |
| 3448 do_float_format_conversion (&f, 1, flt_fmt); | |
| 3449 | |
| 3450 os.write (reinterpret_cast<const char *> (&f), sizeof (float)); | |
| 3451 } | |
| 3452 break; | |
| 3453 | |
| 3454 case oct_data_conv::dt_double: | |
| 3455 { | |
| 3456 double d = static_cast<double> (val); | |
| 3457 if (do_float_conversion) | |
| 3458 do_double_format_conversion (&d, 1, flt_fmt); | |
| 3459 | |
| 3460 os.write (reinterpret_cast<const char *> (&d), sizeof (double)); | |
| 3461 } | |
| 3462 break; | |
| 3463 | |
| 3464 default: | |
| 3465 retval = false; | |
| 3466 (*current_liboctave_error_handler) | |
| 3467 ("write: invalid type specification"); | |
| 3468 break; | |
| 3469 } | |
| 3470 | |
| 3471 return retval; | |
| 3472 } | |
| 3473 | |
| 5887 | 3474 template bool |
| 3475 do_write (std::ostream&, const octave_int8&, oct_data_conv::data_type, | |
| 3476 oct_mach_info::float_format, bool, bool); | |
| 3477 | |
| 3478 template bool | |
| 3479 do_write (std::ostream&, const octave_uint8&, oct_data_conv::data_type, | |
| 3480 oct_mach_info::float_format, bool, bool); | |
| 3481 | |
| 3482 template bool | |
| 3483 do_write (std::ostream&, const octave_int16&, oct_data_conv::data_type, | |
| 3484 oct_mach_info::float_format, bool, bool); | |
| 3485 | |
| 3486 template bool | |
| 3487 do_write (std::ostream&, const octave_uint16&, oct_data_conv::data_type, | |
| 3488 oct_mach_info::float_format, bool, bool); | |
| 3489 | |
| 3490 template bool | |
| 3491 do_write (std::ostream&, const octave_int32&, oct_data_conv::data_type, | |
| 3492 oct_mach_info::float_format, bool, bool); | |
| 3493 | |
| 3494 template bool | |
| 3495 do_write (std::ostream&, const octave_uint32&, oct_data_conv::data_type, | |
| 3496 oct_mach_info::float_format, bool, bool); | |
| 3497 | |
| 3498 template bool | |
| 3499 do_write (std::ostream&, const octave_int64&, oct_data_conv::data_type, | |
| 3500 oct_mach_info::float_format, bool, bool); | |
| 3501 | |
| 3502 template bool | |
| 3503 do_write (std::ostream&, const octave_uint64&, oct_data_conv::data_type, | |
| 3504 oct_mach_info::float_format, bool, bool); | |
| 3505 | |
| 4944 | 3506 template <class T> |
| 5275 | 3507 octave_idx_type |
| 3508 octave_stream::write (const Array<T>& data, octave_idx_type block_size, | |
| 4944 | 3509 oct_data_conv::data_type output_type, |
| 5275 | 3510 octave_idx_type skip, oct_mach_info::float_format flt_fmt) |
| 4944 | 3511 { |
| 5275 | 3512 octave_idx_type retval = -1; |
| 4944 | 3513 |
| 3514 bool status = true; | |
| 3515 | |
| 5275 | 3516 octave_idx_type count = 0; |
| 4944 | 3517 |
| 3518 const T *d = data.data (); | |
| 3519 | |
| 5275 | 3520 octave_idx_type n = data.length (); |
| 4944 | 3521 |
| 3522 oct_mach_info::float_format native_flt_fmt | |
| 3523 = oct_mach_info::float_format (); | |
| 3524 | |
| 3525 bool do_float_conversion = (flt_fmt != native_flt_fmt); | |
| 3526 | |
| 5775 | 3527 // FIXME -- byte order for Cray? |
| 4944 | 3528 |
| 3529 bool swap = false; | |
| 3530 | |
| 3531 if (oct_mach_info::words_big_endian ()) | |
| 3532 swap = (flt_fmt == oct_mach_info::flt_fmt_ieee_little_endian | |
| 3533 || flt_fmt == oct_mach_info::flt_fmt_vax_g | |
| 3534 || flt_fmt == oct_mach_info::flt_fmt_vax_g); | |
| 3535 else | |
| 3536 swap = (flt_fmt == oct_mach_info::flt_fmt_ieee_big_endian); | |
| 3537 | |
| 5275 | 3538 for (octave_idx_type i = 0; i < n; i++) |
| 4944 | 3539 { |
| 3540 std::ostream *osp = output_stream (); | |
| 3541 | |
| 3542 if (osp) | |
| 3543 { | |
| 3544 std::ostream& os = *osp; | |
| 3545 | |
| 5254 | 3546 // It seems that Matlab writes zeros instead of actually |
| 3547 // seeking. Hmm... | |
| 3548 | |
| 4944 | 3549 if (skip != 0 && (i % block_size) == 0) |
| 5254 | 3550 { |
| 5775 | 3551 // FIXME -- probably should try to write larger |
| 5254 | 3552 // blocks... |
| 3553 | |
| 3554 unsigned char zero = 0; | |
| 3555 for (int j = 0; j < skip; j++) | |
| 3556 os.write (reinterpret_cast<const char *> (&zero), 1); | |
| 3557 } | |
| 4944 | 3558 |
| 3559 if (os) | |
| 3560 { | |
| 3561 status = do_write (os, d[i], output_type, flt_fmt, swap, | |
| 3562 do_float_conversion); | |
| 3563 | |
| 3564 if (os && status) | |
| 3565 count++; | |
| 3566 else | |
| 3567 break; | |
| 3568 } | |
| 3569 else | |
| 3570 { | |
| 3571 status = false; | |
| 3572 break; | |
| 3573 } | |
| 3574 } | |
| 3575 else | |
| 3576 { | |
| 3577 status = false; | |
| 3578 break; | |
| 3579 } | |
| 3580 } | |
| 3581 | |
| 3582 if (status) | |
| 3583 retval = count; | |
| 3584 | |
| 3585 return retval; | |
| 3586 } | |
| 3587 | |
| 5275 | 3588 template octave_idx_type |
| 3589 octave_stream::write (const Array<char>&, octave_idx_type, | |
| 4944 | 3590 oct_data_conv::data_type, |
| 5275 | 3591 octave_idx_type, oct_mach_info::float_format); |
| 3592 | |
| 3593 template octave_idx_type | |
| 3594 octave_stream::write (const Array<bool>&, octave_idx_type, | |
| 4970 | 3595 oct_data_conv::data_type, |
| 5275 | 3596 octave_idx_type, oct_mach_info::float_format); |
| 3597 | |
| 3598 template octave_idx_type | |
| 3599 octave_stream::write (const Array<double>&, octave_idx_type, | |
| 4944 | 3600 oct_data_conv::data_type, |
| 5275 | 3601 octave_idx_type, oct_mach_info::float_format); |
| 3602 | |
| 3603 template octave_idx_type | |
| 3604 octave_stream::write (const Array<octave_int8>&, octave_idx_type, | |
| 4944 | 3605 oct_data_conv::data_type, |
| 5275 | 3606 octave_idx_type, oct_mach_info::float_format); |
| 3607 | |
| 3608 template octave_idx_type | |
| 3609 octave_stream::write (const Array<octave_uint8>&, octave_idx_type, | |
| 4944 | 3610 oct_data_conv::data_type, |
| 5275 | 3611 octave_idx_type, oct_mach_info::float_format); |
| 3612 | |
| 3613 template octave_idx_type | |
| 3614 octave_stream::write (const Array<octave_int16>&, octave_idx_type, | |
| 4944 | 3615 oct_data_conv::data_type, |
| 5275 | 3616 octave_idx_type, oct_mach_info::float_format); |
| 3617 | |
| 3618 template octave_idx_type | |
| 3619 octave_stream::write (const Array<octave_uint16>&, octave_idx_type, | |
| 4944 | 3620 oct_data_conv::data_type, |
| 5275 | 3621 octave_idx_type, oct_mach_info::float_format); |
| 3622 | |
| 3623 template octave_idx_type | |
| 3624 octave_stream::write (const Array<octave_int32>&, octave_idx_type, | |
| 4944 | 3625 oct_data_conv::data_type, |
| 5275 | 3626 octave_idx_type, oct_mach_info::float_format); |
| 3627 | |
| 3628 template octave_idx_type | |
| 3629 octave_stream::write (const Array<octave_uint32>&, octave_idx_type, | |
| 4944 | 3630 oct_data_conv::data_type, |
| 5275 | 3631 octave_idx_type, oct_mach_info::float_format); |
| 3632 | |
| 3633 template octave_idx_type | |
| 3634 octave_stream::write (const Array<octave_int64>&, octave_idx_type, | |
| 4944 | 3635 oct_data_conv::data_type, |
| 5275 | 3636 octave_idx_type, oct_mach_info::float_format); |
| 3637 | |
| 3638 template octave_idx_type | |
| 3639 octave_stream::write (const Array<octave_uint64>&, octave_idx_type, | |
| 4944 | 3640 oct_data_conv::data_type, |
| 5275 | 3641 octave_idx_type, oct_mach_info::float_format); |
| 4944 | 3642 |
| 2117 | 3643 octave_value |
| 3810 | 3644 octave_stream::scanf (const std::string& fmt, const Array<double>& size, |
| 5275 | 3645 octave_idx_type& count, const std::string& who) |
| 2117 | 3646 { |
| 3647 octave_value retval; | |
| 3648 | |
| 5659 | 3649 if (stream_ok ()) |
| 4468 | 3650 retval = rep->scanf (fmt, size, count, who); |
| 2117 | 3651 |
| 3652 return retval; | |
| 3653 } | |
| 3654 | |
| 5279 | 3655 octave_value |
| 3656 octave_stream::scanf (const octave_value& fmt, const Array<double>& size, | |
| 5299 | 3657 octave_idx_type& count, const std::string& who) |
| 5279 | 3658 { |
| 3659 octave_value retval = Matrix (); | |
| 3660 | |
| 3661 if (fmt.is_string ()) | |
| 3662 { | |
| 3663 std::string sfmt = fmt.string_value (); | |
| 3664 | |
| 3665 if (fmt.is_sq_string ()) | |
| 3666 sfmt = do_string_escapes (sfmt); | |
| 3667 | |
| 3668 retval = scanf (sfmt, size, count, who); | |
| 3669 } | |
| 3670 else | |
| 3671 { | |
| 3672 // Note that this is not ::error () ! | |
| 3673 | |
| 3674 error (who + ": format must be a string"); | |
| 3675 } | |
| 3676 | |
| 3677 return retval; | |
| 3678 } | |
| 3679 | |
| 2215 | 3680 octave_value_list |
| 4468 | 3681 octave_stream::oscanf (const std::string& fmt, const std::string& who) |
| 2215 | 3682 { |
| 3683 octave_value_list retval; | |
| 3684 | |
| 5659 | 3685 if (stream_ok ()) |
| 4468 | 3686 retval = rep->oscanf (fmt, who); |
| 2215 | 3687 |
| 3688 return retval; | |
| 3689 } | |
| 3690 | |
| 5279 | 3691 octave_value_list |
| 3692 octave_stream::oscanf (const octave_value& fmt, const std::string& who) | |
| 3693 { | |
| 3694 octave_value_list retval; | |
| 3695 | |
| 3696 if (fmt.is_string ()) | |
| 3697 { | |
| 3698 std::string sfmt = fmt.string_value (); | |
| 3699 | |
| 3700 if (fmt.is_sq_string ()) | |
| 3701 sfmt = do_string_escapes (sfmt); | |
| 3702 | |
| 3703 retval = oscanf (sfmt, who); | |
| 3704 } | |
| 3705 else | |
| 3706 { | |
| 3707 // Note that this is not ::error () ! | |
| 3708 | |
| 3709 error (who + ": format must be a string"); | |
| 3710 } | |
| 3711 | |
| 3712 return retval; | |
| 3713 } | |
| 3714 | |
| 2117 | 3715 int |
| 4468 | 3716 octave_stream::printf (const std::string& fmt, const octave_value_list& args, |
| 3717 const std::string& who) | |
| 2117 | 3718 { |
| 3719 int retval = -1; | |
| 3720 | |
| 5659 | 3721 if (stream_ok ()) |
| 4468 | 3722 retval = rep->printf (fmt, args, who); |
| 2117 | 3723 |
| 3724 return retval; | |
| 3725 } | |
| 3726 | |
| 3727 int | |
| 5279 | 3728 octave_stream::printf (const octave_value& fmt, const octave_value_list& args, |
| 3729 const std::string& who) | |
| 3730 { | |
| 3731 int retval = 0; | |
| 3732 | |
| 3733 if (fmt.is_string ()) | |
| 3734 { | |
| 3735 std::string sfmt = fmt.string_value (); | |
| 3736 | |
| 3737 if (fmt.is_sq_string ()) | |
| 3738 sfmt = do_string_escapes (sfmt); | |
| 3739 | |
| 3740 retval = printf (sfmt, args, who); | |
| 3741 } | |
| 3742 else | |
| 3743 { | |
| 3744 // Note that this is not ::error () ! | |
| 3745 | |
| 3746 error (who + ": format must be a string"); | |
| 3747 } | |
| 3748 | |
| 3749 return retval; | |
| 3750 } | |
| 3751 | |
| 3752 int | |
| 4468 | 3753 octave_stream::puts (const std::string& s, const std::string& who) |
| 2117 | 3754 { |
| 3755 int retval = -1; | |
| 3756 | |
| 5659 | 3757 if (stream_ok ()) |
| 4468 | 3758 retval = rep->puts (s, who); |
| 2117 | 3759 |
| 3760 return retval; | |
| 3761 } | |
| 3762 | |
| 5775 | 3763 // FIXME -- maybe this should work for string arrays too. |
| 2117 | 3764 |
| 3765 int | |
| 4468 | 3766 octave_stream::puts (const octave_value& tc_s, const std::string& who) |
| 2117 | 3767 { |
| 3768 int retval = -1; | |
| 3769 | |
| 3770 if (tc_s.is_string ()) | |
| 3771 { | |
| 3523 | 3772 std::string s = tc_s.string_value (); |
| 5279 | 3773 retval = puts (s, who); |
| 2117 | 3774 } |
| 3775 else | |
| 4468 | 3776 { |
| 3777 // Note that this is not ::error () ! | |
| 3778 | |
| 3779 error (who + ": argument must be a string"); | |
| 3780 } | |
| 2117 | 3781 |
| 3782 return retval; | |
| 3783 } | |
| 3784 | |
| 3785 bool | |
| 3786 octave_stream::eof (void) const | |
| 3787 { | |
| 3788 int retval = -1; | |
| 3789 | |
| 5659 | 3790 if (stream_ok ()) |
| 2117 | 3791 retval = rep->eof (); |
| 3792 | |
| 3793 return retval; | |
| 3794 } | |
| 3795 | |
| 3536 | 3796 std::string |
| 2435 | 3797 octave_stream::error (bool clear, int& err_num) |
| 2117 | 3798 { |
| 5649 | 3799 std::string retval = "invalid stream object"; |
| 3800 | |
| 5659 | 3801 if (stream_ok (false)) |
| 2435 | 3802 retval = rep->error (clear, err_num); |
| 2117 | 3803 |
| 3804 return retval; | |
| 3805 } | |
| 3806 | |
| 3536 | 3807 std::string |
| 3340 | 3808 octave_stream::name (void) const |
| 2117 | 3809 { |
| 3523 | 3810 std::string retval; |
| 2117 | 3811 |
| 5659 | 3812 if (stream_ok ()) |
| 2117 | 3813 retval = rep->name (); |
| 3814 | |
| 3815 return retval; | |
| 3816 } | |
| 3817 | |
| 3818 int | |
| 3340 | 3819 octave_stream::mode (void) const |
| 2117 | 3820 { |
| 3821 int retval = 0; | |
| 3822 | |
| 5659 | 3823 if (stream_ok ()) |
| 2117 | 3824 retval = rep->mode (); |
| 3825 | |
| 3826 return retval; | |
| 3827 } | |
| 3828 | |
| 2317 | 3829 oct_mach_info::float_format |
| 3340 | 3830 octave_stream::float_format (void) const |
| 2117 | 3831 { |
| 4574 | 3832 oct_mach_info::float_format retval = oct_mach_info::flt_fmt_unknown; |
| 2317 | 3833 |
| 5659 | 3834 if (stream_ok ()) |
| 2317 | 3835 retval = rep->float_format (); |
| 2117 | 3836 |
| 3837 return retval; | |
| 3838 } | |
| 3839 | |
| 3536 | 3840 std::string |
| 2117 | 3841 octave_stream::mode_as_string (int mode) |
| 3842 { | |
| 3523 | 3843 std::string retval = "???"; |
| 3775 | 3844 std::ios::openmode in_mode = static_cast<std::ios::openmode> (mode); |
| 3845 | |
| 3846 if (in_mode == std::ios::in) | |
| 3847 retval = "r"; | |
| 3848 else if (in_mode == std::ios::out | |
| 4078 | 3849 || in_mode == (std::ios::out | std::ios::trunc)) |
| 3775 | 3850 retval = "w"; |
| 4078 | 3851 else if (in_mode == (std::ios::out | std::ios::app)) |
| 3775 | 3852 retval = "a"; |
| 4078 | 3853 else if (in_mode == (std::ios::in | std::ios::out)) |
| 3775 | 3854 retval = "r+"; |
| 4078 | 3855 else if (in_mode == (std::ios::in | std::ios::out | std::ios::trunc)) |
| 3775 | 3856 retval = "w+"; |
| 4078 | 3857 else if (in_mode == (std::ios::in | std::ios::out | std::ios::ate)) |
| 3775 | 3858 retval = "a+"; |
| 4078 | 3859 else if (in_mode == (std::ios::in | std::ios::binary)) |
| 3775 | 3860 retval = "rb"; |
| 4078 | 3861 else if (in_mode == (std::ios::out | std::ios::binary) |
| 3862 || in_mode == (std::ios::out | std::ios::trunc | std::ios::binary)) | |
| 3775 | 3863 retval = "wb"; |
| 4078 | 3864 else if (in_mode == (std::ios::out | std::ios::app | std::ios::binary)) |
| 3775 | 3865 retval = "ab"; |
| 4078 | 3866 else if (in_mode == (std::ios::in | std::ios::out | std::ios::binary)) |
| 3775 | 3867 retval = "r+b"; |
| 4078 | 3868 else if (in_mode == (std::ios::in | std::ios::out | std::ios::trunc |
| 3869 | std::ios::binary)) | |
| 3775 | 3870 retval = "w+b"; |
| 4078 | 3871 else if (in_mode == (std::ios::in | std::ios::out | std::ios::ate |
| 3872 | std::ios::binary)) | |
| 3775 | 3873 retval = "a+b"; |
| 2117 | 3874 |
| 3875 return retval; | |
| 3876 } | |
| 3877 | |
| 3878 octave_stream_list *octave_stream_list::instance = 0; | |
| 3879 | |
| 2926 | 3880 bool |
| 3881 octave_stream_list::instance_ok (void) | |
| 3882 { | |
| 3883 bool retval = true; | |
| 3884 | |
| 3885 if (! instance) | |
| 3886 instance = new octave_stream_list (); | |
| 3887 | |
| 3888 if (! instance) | |
| 3889 { | |
| 3890 ::error ("unable to create stream list object!"); | |
| 3891 | |
| 3892 retval = false; | |
| 3893 } | |
| 3894 | |
| 3895 return retval; | |
| 3896 } | |
| 3897 | |
| 5353 | 3898 int |
| 6757 | 3899 octave_stream_list::insert (octave_stream& os) |
| 2926 | 3900 { |
| 5353 | 3901 return (instance_ok ()) ? instance->do_insert (os) : -1; |
| 2926 | 3902 } |
| 3903 | |
| 3340 | 3904 octave_stream |
| 3523 | 3905 octave_stream_list::lookup (int fid, const std::string& who) |
| 2926 | 3906 { |
| 3341 | 3907 return (instance_ok ()) ? instance->do_lookup (fid, who) : octave_stream (); |
| 2926 | 3908 } |
| 3909 | |
| 3340 | 3910 octave_stream |
| 3523 | 3911 octave_stream_list::lookup (const octave_value& fid, const std::string& who) |
| 2926 | 3912 { |
| 3341 | 3913 return (instance_ok ()) ? instance->do_lookup (fid, who) : octave_stream (); |
| 2926 | 3914 } |
| 3915 | |
| 3916 int | |
| 3523 | 3917 octave_stream_list::remove (int fid, const std::string& who) |
| 2926 | 3918 { |
| 3341 | 3919 return (instance_ok ()) ? instance->do_remove (fid, who) : -1; |
| 2926 | 3920 } |
| 3921 | |
| 3922 int | |
| 3523 | 3923 octave_stream_list::remove (const octave_value& fid, const std::string& who) |
| 2926 | 3924 { |
| 3341 | 3925 return (instance_ok ()) ? instance->do_remove (fid, who) : -1; |
| 2926 | 3926 } |
| 3927 | |
| 3928 void | |
| 3929 octave_stream_list::clear (void) | |
| 3930 { | |
| 3931 if (instance) | |
| 3932 instance->do_clear (); | |
| 3933 } | |
| 3934 | |
| 3935 string_vector | |
| 3936 octave_stream_list::get_info (int fid) | |
| 3937 { | |
| 3938 return (instance_ok ()) ? instance->do_get_info (fid) : string_vector (); | |
| 3939 } | |
| 3940 | |
| 3941 string_vector | |
| 3942 octave_stream_list::get_info (const octave_value& fid) | |
| 3943 { | |
| 3944 return (instance_ok ()) ? instance->do_get_info (fid) : string_vector (); | |
| 3945 } | |
| 3946 | |
| 3536 | 3947 std::string |
| 2926 | 3948 octave_stream_list::list_open_files (void) |
| 3949 { | |
| 3523 | 3950 return (instance_ok ()) ? instance->do_list_open_files () : std::string (); |
| 2926 | 3951 } |
| 3952 | |
| 3953 octave_value | |
| 3954 octave_stream_list::open_file_numbers (void) | |
| 3955 { | |
| 3956 return (instance_ok ()) | |
| 3957 ? instance->do_open_file_numbers () : octave_value (); | |
| 3958 } | |
| 3959 | |
| 3960 int | |
| 3961 octave_stream_list::get_file_number (const octave_value& fid) | |
| 3962 { | |
| 3963 return (instance_ok ()) ? instance->do_get_file_number (fid) : -1; | |
| 3964 } | |
| 3965 | |
| 5353 | 3966 int |
| 6757 | 3967 octave_stream_list::do_insert (octave_stream& os) |
| 2117 | 3968 { |
| 6757 | 3969 // Insert item with key corresponding to file-descriptor. |
| 3970 | |
| 3971 int stream_number; | |
| 3972 | |
| 3973 if ((stream_number = os.file_number ()) == -1) | |
| 3974 return stream_number; | |
| 3975 | |
| 3976 // Should we test for "(list.find (stream_number) != list.end ()) && | |
| 3977 // list[stream_number].is_open ()" and respond with "error | |
| 3978 // ("internal error: ...")"? It should not happen except for some | |
| 3979 // bug or if the user has opened a stream with an interpreted | |
| 3980 // command, but closed it directly with a system call in an | |
| 3981 // oct-file; then the kernel knows the fd is free, but Octave does | |
| 3982 // not know. If it happens, it should not do harm here to simply | |
| 3983 // overwrite this entry, although the wrong entry might have done | |
| 3984 // harm before. | |
| 3985 | |
| 3986 if (list.size () < list.max_size ()) | |
| 3987 list[stream_number] = os; | |
| 3988 else | |
| 2117 | 3989 { |
| 6757 | 3990 stream_number = -1; |
| 3991 error ("could not create file id"); | |
| 3340 | 3992 } |
| 2117 | 3993 |
| 5353 | 3994 return stream_number; |
| 6757 | 3995 |
| 2117 | 3996 } |
| 3997 | |
| 3341 | 3998 static void |
| 3523 | 3999 gripe_invalid_file_id (int fid, const std::string& who) |
| 3341 | 4000 { |
| 4001 if (who.empty ()) | |
| 4002 ::error ("invalid stream number = %d", fid); | |
| 4003 else | |
| 4004 ::error ("%s: invalid stream number = %d", who.c_str (), fid); | |
| 4005 } | |
| 4006 | |
| 3340 | 4007 octave_stream |
| 3523 | 4008 octave_stream_list::do_lookup (int fid, const std::string& who) const |
| 2117 | 4009 { |
| 3340 | 4010 octave_stream retval; |
| 2117 | 4011 |
| 6757 | 4012 if (fid >= 0) |
| 4013 { | |
| 4014 ostrl_map::const_iterator iter = list.find (fid); | |
| 4015 | |
| 4016 if (iter != list.end ()) | |
| 4017 retval = iter->second; | |
| 4018 else | |
| 4019 gripe_invalid_file_id (fid, who); | |
| 4020 } | |
| 3341 | 4021 else |
| 4022 gripe_invalid_file_id (fid, who); | |
| 2117 | 4023 |
| 4024 return retval; | |
| 4025 } | |
| 4026 | |
| 3340 | 4027 octave_stream |
| 3341 | 4028 octave_stream_list::do_lookup (const octave_value& fid, |
| 3523 | 4029 const std::string& who) const |
| 2117 | 4030 { |
| 3340 | 4031 octave_stream retval; |
| 2117 | 4032 |
| 4033 int i = get_file_number (fid); | |
| 4034 | |
| 4035 if (! error_state) | |
| 3341 | 4036 retval = do_lookup (i, who); |
| 2117 | 4037 |
| 4038 return retval; | |
| 4039 } | |
| 4040 | |
| 4041 int | |
| 3523 | 4042 octave_stream_list::do_remove (int fid, const std::string& who) |
| 2117 | 4043 { |
| 4044 int retval = -1; | |
| 4045 | |
| 3531 | 4046 // Can't remove stdin (std::cin), stdout (std::cout), or stderr |
| 4047 // (std::cerr). | |
| 2117 | 4048 |
| 6757 | 4049 if (fid > 2) |
| 2117 | 4050 { |
| 6757 | 4051 ostrl_map::iterator iter = list.find (fid); |
| 4052 | |
| 4053 if (iter != list.end ()) | |
| 2117 | 4054 { |
| 6757 | 4055 octave_stream os = iter->second; |
| 4056 | |
| 4057 if (os.is_valid ()) | |
| 4058 { | |
| 4059 os.close (); | |
| 4060 iter->second = octave_stream (); | |
| 4061 retval = 0; | |
| 4062 } | |
| 4063 else | |
| 4064 gripe_invalid_file_id (fid, who); | |
| 2117 | 4065 } |
| 3341 | 4066 else |
| 4067 gripe_invalid_file_id (fid, who); | |
| 2117 | 4068 } |
| 3341 | 4069 else |
| 4070 gripe_invalid_file_id (fid, who); | |
| 2117 | 4071 |
| 4072 return retval; | |
| 4073 } | |
| 4074 | |
| 4075 int | |
| 3523 | 4076 octave_stream_list::do_remove (const octave_value& fid, const std::string& who) |
| 2117 | 4077 { |
| 4078 int retval = -1; | |
| 4079 | |
| 6054 | 4080 if (fid.is_string () && fid.string_value () == "all") |
| 4081 { | |
| 6757 | 4082 for (ostrl_map::iterator p = list.begin (); p != list.end (); p++) |
| 6054 | 4083 { |
| 6757 | 4084 // Skip stdin, stdout, and stderr. |
| 4085 | |
| 4086 if (p->first > 2) | |
| 4087 { | |
| 4088 octave_stream os = p->second; | |
| 4089 | |
| 4090 if (os.is_valid ()) | |
| 4091 do_remove (p->first, who); | |
| 4092 } | |
| 6054 | 4093 } |
| 4094 | |
| 4095 retval = 0; | |
| 4096 } | |
| 4097 else | |
| 4098 { | |
| 4099 int i = get_file_number (fid); | |
| 4100 | |
| 4101 if (! error_state) | |
| 4102 retval = do_remove (i, who); | |
| 4103 } | |
| 2117 | 4104 |
| 4105 return retval; | |
| 4106 } | |
| 4107 | |
| 4108 void | |
| 4109 octave_stream_list::do_clear (void) | |
| 4110 { | |
| 4111 // Do flush stdout and stderr. | |
| 4112 | |
| 6757 | 4113 list[0].flush (); |
| 4114 list[1].flush (); | |
| 2117 | 4115 |
| 4116 // But don't delete them or stdin. | |
| 4117 | |
| 6757 | 4118 for (ostrl_map::iterator p = list.begin (); p != list.end (); p++) |
| 4119 { | |
| 4120 // Skip stdin, stdout, and stderr. | |
| 4121 | |
| 4122 if (p->first > 2) | |
| 4123 p->second = octave_stream (); | |
| 4124 } | |
| 2117 | 4125 } |
| 4126 | |
| 4127 string_vector | |
| 4128 octave_stream_list::do_get_info (int fid) const | |
| 4129 { | |
| 4130 string_vector retval; | |
| 4131 | |
| 3340 | 4132 octave_stream os = do_lookup (fid); |
| 2117 | 4133 |
| 3341 | 4134 if (os.is_valid ()) |
| 2117 | 4135 { |
| 4136 retval.resize (3); | |
| 4137 | |
| 3340 | 4138 retval(0) = os.name (); |
| 4139 retval(1) = octave_stream::mode_as_string (os.mode ()); | |
| 4140 retval(2) = oct_mach_info::float_format_as_string (os.float_format ()); | |
| 2117 | 4141 } |
| 4142 else | |
| 3341 | 4143 ::error ("invalid file id = %d", fid); |
| 2117 | 4144 |
| 4145 return retval; | |
| 4146 } | |
| 4147 | |
| 4148 string_vector | |
| 4149 octave_stream_list::do_get_info (const octave_value& fid) const | |
| 4150 { | |
| 4151 string_vector retval; | |
| 4152 | |
| 4153 int conv_err = 0; | |
| 4154 | |
| 4155 int int_fid = convert_to_valid_int (fid, conv_err); | |
| 4156 | |
| 4157 if (! conv_err) | |
| 4158 retval = do_get_info (int_fid); | |
| 4159 else | |
| 2915 | 4160 ::error ("file id must be a file object or integer value"); |
| 2117 | 4161 |
| 4162 return retval; | |
| 4163 } | |
| 4164 | |
| 3536 | 4165 std::string |
| 2117 | 4166 octave_stream_list::do_list_open_files (void) const |
| 4167 { | |
| 3523 | 4168 std::string retval; |
| 2117 | 4169 |
| 5765 | 4170 std::ostringstream buf; |
| 2117 | 4171 |
| 4172 buf << "\n" | |
| 4173 << " number mode arch name\n" | |
| 4174 << " ------ ---- ---- ----\n"; | |
| 4175 | |
| 6757 | 4176 for (ostrl_map::const_iterator p = list.begin (); p != list.end (); p++) |
| 2117 | 4177 { |
| 6757 | 4178 octave_stream os = p->second; |
| 2117 | 4179 |
| 4326 | 4180 buf << " " |
| 4181 << std::setiosflags (std::ios::right) | |
| 6757 | 4182 << std::setw (4) << p->first << " " |
| 4326 | 4183 << std::setiosflags (std::ios::left) |
| 4184 << std::setw (3) | |
| 4185 << octave_stream::mode_as_string (os.mode ()) | |
| 4186 << " " | |
| 4187 << std::setw (9) | |
| 4188 << oct_mach_info::float_format_as_string (os.float_format ()) | |
| 4189 << " " | |
| 4190 << os.name () << "\n"; | |
| 2117 | 4191 } |
| 4192 | |
| 5765 | 4193 buf << "\n"; |
| 4194 | |
| 4195 retval = buf.str (); | |
| 2117 | 4196 |
| 4197 return retval; | |
| 4198 } | |
| 4199 | |
| 4200 octave_value | |
| 4201 octave_stream_list::do_open_file_numbers (void) const | |
| 4202 { | |
| 6757 | 4203 Matrix retval (1, list.size (), 0.0); |
| 2117 | 4204 |
| 4205 int num_open = 0; | |
| 4206 | |
| 6757 | 4207 for (ostrl_map::const_iterator p = list.begin (); p != list.end (); p++) |
| 2117 | 4208 { |
| 6757 | 4209 // Skip stdin, stdout, and stderr. |
| 4210 | |
| 4211 if (p->first > 2 && p->second) | |
| 4212 retval(0,num_open++) = p->first; | |
| 2117 | 4213 } |
| 4214 | |
| 4215 retval.resize ((num_open > 0), num_open); | |
| 4216 | |
| 4217 return retval; | |
| 4218 } | |
| 4219 | |
| 4220 int | |
| 2609 | 4221 octave_stream_list::do_get_file_number (const octave_value& fid) const |
| 2117 | 4222 { |
| 4223 int retval = -1; | |
| 4224 | |
| 4225 if (fid.is_string ()) | |
| 4226 { | |
| 3523 | 4227 std::string nm = fid.string_value (); |
| 2117 | 4228 |
| 6757 | 4229 for (ostrl_map::const_iterator p = list.begin (); p != list.end (); p++) |
| 2117 | 4230 { |
| 6757 | 4231 // stdin (std::cin), stdout (std::cout), and stderr (std::cerr) |
| 4232 // are unnamed. | |
| 4233 | |
| 4234 if (p->first > 2) | |
| 2117 | 4235 { |
| 6757 | 4236 octave_stream os = p->second; |
| 4237 | |
| 4238 if (os && os.name () == nm) | |
| 4239 { | |
| 4240 retval = p->first; | |
| 4241 break; | |
| 4242 } | |
| 2117 | 4243 } |
| 4244 } | |
| 4245 } | |
| 4246 else | |
| 4247 { | |
| 4248 int conv_err = 0; | |
| 4249 | |
| 4250 int int_fid = convert_to_valid_int (fid, conv_err); | |
| 4251 | |
| 4252 if (conv_err) | |
| 3523 | 4253 ::error ("file id must be a file object, std::string, or integer value"); |
| 2117 | 4254 else |
| 4255 retval = int_fid; | |
| 4256 } | |
| 4257 | |
| 4258 return retval; | |
| 4259 } | |
| 4260 | |
| 4261 /* | |
| 4262 ;;; Local Variables: *** | |
| 4263 ;;; mode: C++ *** | |
| 4264 ;;; End: *** | |
| 4265 */ |