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annotate src/oct-stream.cc @ 11740:72830070a17b release-3-0-x
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| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Mon, 07 Apr 2008 13:40:38 -0400 |
| parents | 31443b3c5d3b |
| children | 3d929f68d226 |
| rev | line source |
|---|---|
| 2117 | 1 /* |
| 2 | |
| 7017 | 3 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
| 11740 | 4 2005, 2006, 2007, 2008 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" | |
| 3342 | 50 #include "input.h" |
| 3775 | 51 #include "oct-stdstrm.h" |
| 2117 | 52 #include "oct-stream.h" |
| 2877 | 53 #include "oct-obj.h" |
| 2117 | 54 #include "utils.h" |
| 55 | |
| 56 // Possible values for conv_err: | |
| 57 // | |
| 58 // 1 : not a real scalar | |
| 2902 | 59 // 2 : value is NaN |
| 60 // 3 : value is not an integer | |
| 2117 | 61 |
| 62 static int | |
| 63 convert_to_valid_int (const octave_value& tc, int& conv_err) | |
| 64 { | |
| 65 int retval = 0; | |
| 66 | |
| 67 conv_err = 0; | |
| 68 | |
| 2902 | 69 double dval = tc.double_value (); |
| 70 | |
| 71 if (! error_state) | |
| 2117 | 72 { |
| 5389 | 73 if (! lo_ieee_isnan (dval)) |
| 2117 | 74 { |
| 2902 | 75 int ival = NINT (dval); |
| 76 | |
| 77 if (ival == dval) | |
| 78 retval = ival; | |
| 2117 | 79 else |
| 80 conv_err = 3; | |
| 81 } | |
| 82 else | |
| 83 conv_err = 2; | |
| 84 } | |
| 85 else | |
| 86 conv_err = 1; | |
| 87 | |
| 88 return retval; | |
| 89 } | |
| 90 | |
| 91 static int | |
| 4468 | 92 get_size (double d, const std::string& who) |
| 2117 | 93 { |
| 94 int retval = -1; | |
| 95 | |
| 5389 | 96 if (! lo_ieee_isnan (d)) |
| 2117 | 97 { |
| 98 if (! xisinf (d)) | |
| 99 { | |
| 3268 | 100 if (d >= 0.0) |
| 2117 | 101 retval = NINT (d); |
| 102 else | |
| 103 ::error ("%s: negative value invalid as size specification", | |
| 4468 | 104 who.c_str ()); |
| 2117 | 105 } |
| 106 else | |
| 107 retval = -1; | |
| 108 } | |
| 109 else | |
| 4468 | 110 ::error ("%s: NaN is invalid as size specification", who.c_str ()); |
| 2117 | 111 |
| 112 return retval; | |
| 113 } | |
| 114 | |
| 115 static void | |
| 5275 | 116 get_size (const Array<double>& size, octave_idx_type& nr, octave_idx_type& nc, bool& one_elt_size_spec, |
| 4468 | 117 const std::string& who) |
| 2117 | 118 { |
| 119 nr = -1; | |
| 120 nc = -1; | |
| 121 | |
| 3268 | 122 one_elt_size_spec = false; |
| 123 | |
| 2117 | 124 double dnr = -1.0; |
| 125 double dnc = -1.0; | |
| 126 | |
| 5275 | 127 octave_idx_type sz_len = size.length (); |
| 3810 | 128 |
| 129 if (sz_len == 1) | |
| 2601 | 130 { |
| 3268 | 131 one_elt_size_spec = true; |
| 132 | |
| 3810 | 133 dnr = size (0); |
| 4293 | 134 |
| 135 dnc = (dnr == 0.0) ? 0.0 : 1.0; | |
| 2601 | 136 } |
| 3810 | 137 else if (sz_len == 2) |
| 2117 | 138 { |
| 3810 | 139 dnr = size (0); |
| 140 | |
| 141 if (! xisinf (dnr)) | |
| 142 dnc = size (1); | |
| 143 else | |
| 4468 | 144 ::error ("%s: invalid size specification", who.c_str ()); |
| 2117 | 145 } |
| 146 else | |
| 4468 | 147 ::error ("%s: invalid size specification", who.c_str ()); |
| 2117 | 148 |
| 149 if (! error_state) | |
| 150 { | |
| 4468 | 151 nr = get_size (dnr, who); |
| 2117 | 152 |
| 3268 | 153 if (! error_state && dnc >= 0.0) |
| 4468 | 154 nc = get_size (dnc, who); |
| 2117 | 155 } |
| 156 } | |
| 157 | |
| 3523 | 158 scanf_format_list::scanf_format_list (const std::string& s) |
| 2117 | 159 : nconv (0), curr_idx (0), list (16), buf (0) |
| 160 { | |
| 161 int num_elts = 0; | |
| 162 | |
| 163 int n = s.length (); | |
| 164 | |
| 165 int i = 0; | |
| 166 | |
| 2215 | 167 int width = 0; |
| 2117 | 168 bool discard = false; |
| 169 char modifier = '\0'; | |
| 170 char type = '\0'; | |
| 171 | |
| 172 bool have_more = true; | |
| 173 | |
| 174 while (i < n) | |
| 175 { | |
| 176 have_more = true; | |
| 177 | |
| 178 if (! buf) | |
| 5765 | 179 buf = new std::ostringstream (); |
| 2117 | 180 |
| 181 if (s[i] == '%') | |
| 182 { | |
| 3483 | 183 // Process percent-escape conversion type. |
| 184 | |
| 2215 | 185 process_conversion (s, i, n, width, discard, type, modifier, |
| 186 num_elts); | |
| 2117 | 187 have_more = (buf != 0); |
| 188 } | |
| 3483 | 189 else if (isspace (s[i])) |
| 2117 | 190 { |
| 3483 | 191 type = scanf_format_elt::whitespace_conversion; |
| 192 | |
| 2215 | 193 width = 0; |
| 2117 | 194 discard = false; |
| 195 modifier = '\0'; | |
| 3483 | 196 *buf << " "; |
| 197 | |
| 198 while (++i < n && isspace (s[i])) | |
| 199 /* skip whitespace */; | |
| 200 | |
| 201 add_elt_to_list (width, discard, type, modifier, num_elts); | |
| 202 | |
| 203 have_more = false; | |
| 204 } | |
| 205 else | |
| 206 { | |
| 207 type = scanf_format_elt::literal_conversion; | |
| 208 | |
| 209 width = 0; | |
| 210 discard = false; | |
| 211 modifier = '\0'; | |
| 212 | |
| 213 while (i < n && ! isspace (s[i]) && s[i] != '%') | |
| 214 *buf << s[i++]; | |
| 215 | |
| 216 add_elt_to_list (width, discard, type, modifier, num_elts); | |
| 217 | |
| 218 have_more = false; | |
| 2117 | 219 } |
| 220 | |
| 221 if (nconv < 0) | |
| 222 { | |
| 223 have_more = false; | |
| 224 break; | |
| 225 } | |
| 226 } | |
| 227 | |
| 228 if (have_more) | |
| 2215 | 229 add_elt_to_list (width, discard, type, modifier, num_elts); |
| 2117 | 230 |
| 231 list.resize (num_elts); | |
| 232 | |
| 233 delete buf; | |
| 234 } | |
| 235 | |
| 236 scanf_format_list::~scanf_format_list (void) | |
| 237 { | |
| 5275 | 238 octave_idx_type n = list.length (); |
| 239 | |
| 240 for (octave_idx_type i = 0; i < n; i++) | |
| 2117 | 241 { |
| 3340 | 242 scanf_format_elt *elt = list(i); |
| 2117 | 243 delete elt; |
| 244 } | |
| 245 } | |
| 246 | |
| 247 void | |
| 2215 | 248 scanf_format_list::add_elt_to_list (int width, bool discard, char type, |
| 3483 | 249 char modifier, int& num_elts, |
| 3523 | 250 const std::string& char_class) |
| 2117 | 251 { |
| 252 if (buf) | |
| 253 { | |
| 5765 | 254 std::string text = buf->str (); |
| 4051 | 255 |
| 256 if (! text.empty ()) | |
| 2117 | 257 { |
| 4051 | 258 scanf_format_elt *elt |
| 259 = new scanf_format_elt (text.c_str (), width, discard, type, | |
| 260 modifier, char_class); | |
| 261 | |
| 262 if (num_elts == list.length ()) | |
| 263 list.resize (2 * num_elts); | |
| 264 | |
| 265 list(num_elts++) = elt; | |
| 2117 | 266 } |
| 267 | |
| 268 delete buf; | |
| 269 buf = 0; | |
| 270 } | |
| 271 } | |
| 272 | |
| 3535 | 273 static std::string |
| 3523 | 274 expand_char_class (const std::string& s) |
| 3483 | 275 { |
| 3523 | 276 std::string retval; |
| 3483 | 277 |
| 278 size_t len = s.length (); | |
| 279 | |
| 280 size_t i = 0; | |
| 281 | |
| 282 while (i < len) | |
| 283 { | |
| 284 unsigned char c = s[i++]; | |
| 285 | |
| 286 if (c == '-' && i > 1 && i < len | |
| 5760 | 287 && static_cast<unsigned char> (s[i-2]) <= static_cast<unsigned char> (s[i])) |
| 3483 | 288 { |
| 289 // Add all characters from the range except the first (we | |
| 290 // already added it below). | |
| 291 | |
| 292 for (c = s[i-2]+1; c < s[i]; c++) | |
| 293 retval += c; | |
| 294 } | |
| 295 else | |
| 296 { | |
| 297 // Add the character to the class. Only add '-' if it is | |
| 298 // the last character in the class. | |
| 299 | |
| 300 if (c != '-' || i == len) | |
| 301 retval += c; | |
| 302 } | |
| 303 } | |
| 304 | |
| 305 return retval; | |
| 306 } | |
| 307 | |
| 2117 | 308 void |
| 3523 | 309 scanf_format_list::process_conversion (const std::string& s, int& i, int n, |
| 2215 | 310 int& width, bool& discard, char& type, |
| 2117 | 311 char& modifier, int& num_elts) |
| 312 { | |
| 2215 | 313 width = 0; |
| 2117 | 314 discard = false; |
| 315 modifier = '\0'; | |
| 316 type = '\0'; | |
| 317 | |
| 318 *buf << s[i++]; | |
| 319 | |
| 320 bool have_width = false; | |
| 321 | |
| 322 while (i < n) | |
| 323 { | |
| 324 switch (s[i]) | |
| 325 { | |
| 326 case '*': | |
| 327 if (discard) | |
| 328 nconv = -1; | |
| 329 else | |
| 330 { | |
| 331 discard = true; | |
| 332 *buf << s[i++]; | |
| 333 } | |
| 334 break; | |
| 335 | |
| 336 case '0': case '1': case '2': case '3': case '4': | |
| 337 case '5': case '6': case '7': case '8': case '9': | |
| 338 if (have_width) | |
| 339 nconv = -1; | |
| 340 else | |
| 341 { | |
| 2215 | 342 char c = s[i++]; |
| 343 width = width * 10 + c - '0'; | |
| 2117 | 344 have_width = true; |
| 2215 | 345 *buf << c; |
| 2117 | 346 while (i < n && isdigit (s[i])) |
| 2215 | 347 { |
| 348 c = s[i++]; | |
| 349 width = width * 10 + c - '0'; | |
| 350 *buf << c; | |
| 351 } | |
| 2117 | 352 } |
| 353 break; | |
| 354 | |
| 355 case 'h': case 'l': case 'L': | |
| 356 if (modifier != '\0') | |
| 357 nconv = -1; | |
| 358 else | |
| 2663 | 359 modifier = s[i++]; |
| 2117 | 360 break; |
| 361 | |
| 362 case 'd': case 'i': case 'o': case 'u': case 'x': | |
| 363 if (modifier == 'L') | |
| 364 { | |
| 365 nconv = -1; | |
| 366 break; | |
| 367 } | |
| 368 goto fini; | |
| 369 | |
| 370 case 'e': case 'f': case 'g': | |
| 371 if (modifier == 'h') | |
| 372 { | |
| 373 nconv = -1; | |
| 374 break; | |
| 375 } | |
| 2663 | 376 |
| 377 // No float or long double conversions, thanks. | |
| 378 *buf << 'l'; | |
| 379 | |
| 2117 | 380 goto fini; |
| 381 | |
| 382 case 'c': case 's': case 'p': case '%': case '[': | |
| 383 if (modifier != '\0') | |
| 384 { | |
| 385 nconv = -1; | |
| 386 break; | |
| 387 } | |
| 388 goto fini; | |
| 389 | |
| 390 fini: | |
| 391 { | |
| 2215 | 392 if (finish_conversion (s, i, n, width, discard, type, |
| 2117 | 393 modifier, num_elts) == 0) |
| 394 return; | |
| 395 } | |
| 396 break; | |
| 397 | |
| 398 default: | |
| 399 nconv = -1; | |
| 400 break; | |
| 401 } | |
| 402 | |
| 403 if (nconv < 0) | |
| 404 break; | |
| 405 } | |
| 406 | |
| 407 nconv = -1; | |
| 408 } | |
| 409 | |
| 410 int | |
| 3523 | 411 scanf_format_list::finish_conversion (const std::string& s, int& i, int n, |
| 2215 | 412 int& width, bool discard, char& type, |
| 2117 | 413 char modifier, int& num_elts) |
| 414 { | |
| 415 int retval = 0; | |
| 416 | |
| 3523 | 417 std::string char_class; |
| 3483 | 418 |
| 3640 | 419 int beg_idx = -1; |
| 420 int end_idx = -1; | |
| 421 | |
| 2117 | 422 if (s[i] == '%') |
| 3640 | 423 { |
| 424 type = '%'; | |
| 425 *buf << s[i++]; | |
| 426 } | |
| 2117 | 427 else |
| 428 { | |
| 429 type = s[i]; | |
| 430 | |
| 431 if (s[i] == '[') | |
| 432 { | |
| 433 *buf << s[i++]; | |
| 434 | |
| 435 if (i < n) | |
| 436 { | |
| 3483 | 437 beg_idx = i; |
| 438 | |
| 2117 | 439 if (s[i] == '^') |
| 440 { | |
| 441 type = '^'; | |
| 442 *buf << s[i++]; | |
| 3483 | 443 |
| 444 if (i < n) | |
| 445 { | |
| 446 beg_idx = i; | |
| 447 | |
| 448 if (s[i] == ']') | |
| 449 *buf << s[i++]; | |
| 450 } | |
| 2117 | 451 } |
| 452 else if (s[i] == ']') | |
| 453 *buf << s[i++]; | |
| 454 } | |
| 455 | |
| 456 while (i < n && s[i] != ']') | |
| 457 *buf << s[i++]; | |
| 458 | |
| 459 if (i < n && s[i] == ']') | |
| 3483 | 460 { |
| 461 end_idx = i-1; | |
| 462 *buf << s[i++]; | |
| 463 } | |
| 2117 | 464 |
| 465 if (s[i-1] != ']') | |
| 466 retval = nconv = -1; | |
| 467 } | |
| 468 else | |
| 2215 | 469 *buf << s[i++]; |
| 3640 | 470 } |
| 471 | |
| 472 nconv++; | |
| 473 | |
| 474 if (nconv > 0) | |
| 475 { | |
| 476 if (beg_idx >= 0 && end_idx >= 0) | |
| 477 char_class = expand_char_class (s.substr (beg_idx, | |
| 478 end_idx - beg_idx + 1)); | |
| 479 | |
| 480 add_elt_to_list (width, discard, type, modifier, num_elts, char_class); | |
| 2117 | 481 } |
| 482 | |
| 483 return retval; | |
| 484 } | |
| 485 | |
| 486 void | |
| 487 scanf_format_list::printme (void) const | |
| 488 { | |
| 489 int n = list.length (); | |
| 490 | |
| 491 for (int i = 0; i < n; i++) | |
| 492 { | |
| 3340 | 493 scanf_format_elt *elt = list(i); |
| 2117 | 494 |
| 3531 | 495 std::cerr |
| 496 << "width: " << elt->width << "\n" | |
| 497 << "discard: " << elt->discard << "\n" | |
| 498 << "type: "; | |
| 3483 | 499 |
| 500 if (elt->type == scanf_format_elt::literal_conversion) | |
| 3531 | 501 std::cerr << "literal text\n"; |
| 3483 | 502 else if (elt->type == scanf_format_elt::whitespace_conversion) |
| 3531 | 503 std::cerr << "whitespace\n"; |
| 3483 | 504 else |
| 3531 | 505 std::cerr << elt->type << "\n"; |
| 506 | |
| 507 std::cerr | |
| 508 << "modifier: " << elt->modifier << "\n" | |
| 509 << "char_class: `" << undo_string_escapes (elt->char_class) << "'\n" | |
| 510 << "text: `" << undo_string_escapes (elt->text) << "'\n\n"; | |
| 2117 | 511 } |
| 512 } | |
| 513 | |
| 514 bool | |
| 515 scanf_format_list::all_character_conversions (void) | |
| 516 { | |
| 517 int n = list.length (); | |
| 518 | |
| 519 if (n > 0) | |
| 520 { | |
| 521 for (int i = 0; i < n; i++) | |
| 522 { | |
| 3340 | 523 scanf_format_elt *elt = list(i); |
| 2117 | 524 |
| 525 switch (elt->type) | |
| 526 { | |
| 3483 | 527 case 'c': case 's': case '%': case '[': case '^': |
| 528 case scanf_format_elt::literal_conversion: | |
| 529 case scanf_format_elt::whitespace_conversion: | |
| 2117 | 530 break; |
| 531 | |
| 532 default: | |
| 533 return false; | |
| 534 break; | |
| 535 } | |
| 536 } | |
| 537 | |
| 538 return true; | |
| 539 } | |
| 540 else | |
| 541 return false; | |
| 542 } | |
| 543 | |
| 544 bool | |
| 545 scanf_format_list::all_numeric_conversions (void) | |
| 546 { | |
| 547 int n = list.length (); | |
| 548 | |
| 549 if (n > 0) | |
| 550 { | |
| 551 for (int i = 0; i < n; i++) | |
| 552 { | |
| 3340 | 553 scanf_format_elt *elt = list(i); |
| 2117 | 554 |
| 555 switch (elt->type) | |
| 556 { | |
| 557 case 'd': case 'i': case 'o': case 'u': case 'x': | |
| 558 case 'e': case 'f': case 'g': | |
| 559 break; | |
| 560 | |
| 561 default: | |
| 562 return false; | |
| 563 break; | |
| 564 } | |
| 565 } | |
| 566 | |
| 567 return true; | |
| 568 } | |
| 569 else | |
| 570 return false; | |
| 571 } | |
| 572 | |
| 573 // Ugh again. | |
| 574 | |
| 3523 | 575 printf_format_list::printf_format_list (const std::string& s) |
| 2117 | 576 : nconv (0), curr_idx (0), list (16), buf (0) |
| 577 { | |
| 578 int num_elts = 0; | |
| 579 | |
| 580 int n = s.length (); | |
| 581 | |
| 582 int i = 0; | |
| 583 | |
| 584 int args = 0; | |
| 3643 | 585 std::string flags; |
| 3640 | 586 int fw = 0; |
| 587 int prec = 0; | |
| 2117 | 588 char modifier = '\0'; |
| 589 char type = '\0'; | |
| 590 | |
| 591 bool have_more = true; | |
| 3640 | 592 bool empty_buf = true; |
| 2117 | 593 |
| 4223 | 594 if (n == 0) |
| 2117 | 595 { |
| 4223 | 596 printf_format_elt *elt |
| 597 = new printf_format_elt ("", args, fw, prec, flags, type, modifier); | |
| 598 | |
| 599 list(num_elts++) = elt; | |
| 600 | |
| 601 list.resize (num_elts); | |
| 602 } | |
| 603 else | |
| 604 { | |
| 605 while (i < n) | |
| 3640 | 606 { |
| 4223 | 607 have_more = true; |
| 608 | |
| 609 if (! buf) | |
| 610 { | |
| 5765 | 611 buf = new std::ostringstream (); |
| 4223 | 612 empty_buf = true; |
| 613 } | |
| 614 | |
| 615 switch (s[i]) | |
| 616 { | |
| 617 case '%': | |
| 3640 | 618 { |
| 4223 | 619 if (empty_buf) |
| 620 { | |
| 621 process_conversion (s, i, n, args, flags, fw, prec, | |
| 622 type, modifier, num_elts); | |
| 623 | |
| 624 have_more = (buf != 0); | |
| 625 } | |
| 626 else | |
| 627 add_elt_to_list (args, flags, fw, prec, type, modifier, | |
| 628 num_elts); | |
| 3640 | 629 } |
| 4223 | 630 break; |
| 631 | |
| 632 default: | |
| 633 { | |
| 634 args = 0; | |
| 635 flags = ""; | |
| 636 fw = 0; | |
| 637 prec = 0; | |
| 638 modifier = '\0'; | |
| 639 type = '\0'; | |
| 640 *buf << s[i++]; | |
| 641 empty_buf = false; | |
| 642 } | |
| 643 break; | |
| 644 } | |
| 645 | |
| 646 if (nconv < 0) | |
| 647 { | |
| 648 have_more = false; | |
| 649 break; | |
| 650 } | |
| 2117 | 651 } |
| 652 | |
| 4223 | 653 if (have_more) |
| 654 add_elt_to_list (args, flags, fw, prec, type, modifier, num_elts); | |
| 655 | |
| 656 list.resize (num_elts); | |
| 657 | |
| 658 delete buf; | |
| 2117 | 659 } |
| 660 } | |
| 661 | |
| 662 printf_format_list::~printf_format_list (void) | |
| 663 { | |
| 664 int n = list.length (); | |
| 665 | |
| 666 for (int i = 0; i < n; i++) | |
| 667 { | |
| 3340 | 668 printf_format_elt *elt = list(i); |
| 2117 | 669 delete elt; |
| 670 } | |
| 671 } | |
| 672 | |
| 673 void | |
| 3640 | 674 printf_format_list::add_elt_to_list (int args, const std::string& flags, |
| 675 int fw, int prec, char type, | |
| 676 char modifier, int& num_elts) | |
| 2117 | 677 { |
| 678 if (buf) | |
| 679 { | |
| 5765 | 680 std::string text = buf->str (); |
| 4051 | 681 |
| 682 if (! text.empty ()) | |
| 2117 | 683 { |
| 4051 | 684 printf_format_elt *elt |
| 685 = new printf_format_elt (text.c_str (), args, fw, prec, flags, | |
| 686 type, modifier); | |
| 687 | |
| 688 if (num_elts == list.length ()) | |
| 689 list.resize (2 * num_elts); | |
| 690 | |
| 691 list(num_elts++) = elt; | |
| 2117 | 692 } |
| 693 | |
| 694 delete buf; | |
| 695 buf = 0; | |
| 696 } | |
| 697 } | |
| 698 | |
| 699 void | |
| 3640 | 700 printf_format_list::process_conversion |
| 701 (const std::string& s, int& i, int n, int& args, std::string& flags, | |
| 702 int& fw, int& prec, char& modifier, char& type, int& num_elts) | |
| 2117 | 703 { |
| 704 args = 0; | |
| 3640 | 705 flags = ""; |
| 706 fw = 0; | |
| 707 prec = 0; | |
| 2117 | 708 modifier = '\0'; |
| 709 type = '\0'; | |
| 710 | |
| 711 *buf << s[i++]; | |
| 712 | |
| 4587 | 713 bool nxt = false; |
| 2117 | 714 |
| 715 while (i < n) | |
| 716 { | |
| 717 switch (s[i]) | |
| 718 { | |
| 719 case '-': case '+': case ' ': case '0': case '#': | |
| 3640 | 720 flags += s[i]; |
| 2117 | 721 *buf << s[i++]; |
| 722 break; | |
| 723 | |
| 724 default: | |
| 4587 | 725 nxt = true; |
| 2117 | 726 break; |
| 727 } | |
| 728 | |
| 4587 | 729 if (nxt) |
| 2117 | 730 break; |
| 731 } | |
| 732 | |
| 733 if (i < n) | |
| 734 { | |
| 735 if (s[i] == '*') | |
| 736 { | |
| 3640 | 737 fw = -1; |
| 2117 | 738 args++; |
| 739 *buf << s[i++]; | |
| 740 } | |
| 741 else | |
| 742 { | |
| 3640 | 743 if (isdigit (s[i])) |
| 744 { | |
| 4587 | 745 int nn = 0; |
| 3643 | 746 std::string tmp = s.substr (i); |
| 4587 | 747 sscanf (tmp.c_str (), "%d%n", &fw, &nn); |
| 3640 | 748 } |
| 749 | |
| 2117 | 750 while (i < n && isdigit (s[i])) |
| 751 *buf << s[i++]; | |
| 752 } | |
| 753 } | |
| 754 | |
| 755 if (i < n && s[i] == '.') | |
| 756 { | |
| 757 *buf << s[i++]; | |
| 758 | |
| 759 if (i < n) | |
| 760 { | |
| 761 if (s[i] == '*') | |
| 762 { | |
| 3640 | 763 prec = -1; |
| 2117 | 764 args++; |
| 765 *buf << s[i++]; | |
| 766 } | |
| 767 else | |
| 768 { | |
| 3640 | 769 if (isdigit (s[i])) |
| 770 { | |
| 4587 | 771 int nn = 0; |
| 3643 | 772 std::string tmp = s.substr (i); |
| 4587 | 773 sscanf (tmp.c_str (), "%d%n", &prec, &nn); |
| 3640 | 774 } |
| 775 | |
| 2117 | 776 while (i < n && isdigit (s[i])) |
| 777 *buf << s[i++]; | |
| 778 } | |
| 779 } | |
| 780 } | |
| 781 | |
| 782 if (i < n) | |
| 783 { | |
| 784 switch (s[i]) | |
| 785 { | |
| 786 case 'h': case 'l': case 'L': | |
| 787 modifier = s[i]; | |
| 788 *buf << s[i++]; | |
| 789 break; | |
| 790 | |
| 791 default: | |
| 792 break; | |
| 793 } | |
| 794 } | |
| 795 | |
| 796 if (i < n) | |
| 3640 | 797 finish_conversion (s, i, args, flags, fw, prec, modifier, type, num_elts); |
| 2117 | 798 else |
| 799 nconv = -1; | |
| 800 } | |
| 801 | |
| 802 void | |
| 3640 | 803 printf_format_list::finish_conversion |
| 804 (const std::string& s, int& i, int args, const std::string& flags, | |
| 805 int fw, int prec, char modifier, char& type, int& num_elts) | |
| 2117 | 806 |
| 807 { | |
| 808 switch (s[i]) | |
| 809 { | |
| 810 case 'd': case 'i': case 'o': case 'x': case 'X': | |
| 811 case 'u': case 'c': | |
| 812 if (modifier == 'L') | |
| 813 { | |
| 814 nconv = -1; | |
| 815 break; | |
| 816 } | |
| 817 goto fini; | |
| 818 | |
| 819 case 'f': case 'e': case 'E': case 'g': case 'G': | |
| 820 if (modifier == 'h' || modifier == 'l') | |
| 821 { | |
| 822 nconv = -1; | |
| 823 break; | |
| 824 } | |
| 825 goto fini; | |
| 826 | |
| 827 case 's': case 'p': case '%': | |
| 828 if (modifier != '\0') | |
| 829 { | |
| 830 nconv = -1; | |
| 831 break; | |
| 832 } | |
| 833 goto fini; | |
| 834 | |
| 835 fini: | |
| 836 | |
| 3640 | 837 type = s[i]; |
| 838 | |
| 839 *buf << s[i++]; | |
| 840 | |
| 841 if (type != '%' || args != 0) | |
| 842 nconv++; | |
| 843 | |
| 844 if (type != '%') | |
| 845 args++; | |
| 846 | |
| 847 add_elt_to_list (args, flags, fw, prec, type, modifier, num_elts); | |
| 848 | |
| 2117 | 849 break; |
| 850 | |
| 851 default: | |
| 852 nconv = -1; | |
| 853 break; | |
| 854 } | |
| 855 } | |
| 856 | |
| 857 void | |
| 858 printf_format_list::printme (void) const | |
| 859 { | |
| 860 int n = list.length (); | |
| 861 | |
| 862 for (int i = 0; i < n; i++) | |
| 863 { | |
| 3340 | 864 printf_format_elt *elt = list(i); |
| 2117 | 865 |
| 3640 | 866 std::cerr |
| 867 << "args: " << elt->args << "\n" | |
| 868 << "flags: `" << elt->flags << "'\n" | |
| 869 << "width: " << elt->fw << "\n" | |
| 870 << "prec: " << elt->prec << "\n" | |
| 871 << "type: `" << elt->type << "'\n" | |
| 872 << "modifier: `" << elt->modifier << "'\n" | |
| 873 << "text: `" << undo_string_escapes (elt->text) << "'\n\n"; | |
| 2117 | 874 } |
| 875 } | |
| 876 | |
| 3145 | 877 int |
| 3148 | 878 octave_base_stream::file_number (void) |
| 3145 | 879 { |
| 880 // Kluge alert! | |
| 881 | |
| 882 if (name () == "stdin") | |
| 883 return 0; | |
| 884 | |
| 885 if (name () == "stdout") | |
| 886 return 1; | |
| 887 | |
| 888 if (name () == "stderr") | |
| 889 return 2; | |
| 890 | |
| 891 int retval = -1; | |
| 892 | |
| 3523 | 893 std::istream *is = input_stream (); |
| 894 std::ostream *os = output_stream (); | |
| 3145 | 895 |
| 3775 | 896 // There is no standard way to get the underlying file descriptor from |
| 897 // std::filebuf (nor in the GNU libstdc++-v3 implementation). We cache | |
| 898 // the descriptor in c_file_ptr_buf, and then extract it here. | |
| 899 | |
| 6757 | 900 c_file_ptr_buf *ibuf |
| 901 = is ? dynamic_cast<c_file_ptr_buf *> (is->rdbuf ()) : 0; | |
| 902 | |
| 903 c_file_ptr_buf *obuf | |
| 904 = os ? dynamic_cast<c_file_ptr_buf *> (os->rdbuf ()) : 0; | |
| 3775 | 905 |
| 906 int i_fid = ibuf ? ibuf->file_number () : -1; | |
| 907 int o_fid = obuf ? obuf->file_number () : -1; | |
| 3145 | 908 |
| 909 if (i_fid >= 0) | |
| 910 { | |
| 911 if (o_fid >= 0) | |
| 912 retval = (i_fid == o_fid) ? i_fid : -1; | |
| 913 else | |
| 914 retval = i_fid; | |
| 915 } | |
| 916 else if (o_fid >= 0) | |
| 917 retval = o_fid; | |
| 918 | |
| 919 return retval; | |
| 920 } | |
| 921 | |
| 2117 | 922 void |
| 3523 | 923 octave_base_stream::error (const std::string& msg) |
| 2117 | 924 { |
| 925 fail = true; | |
| 926 errmsg = msg; | |
| 927 } | |
| 928 | |
| 929 void | |
| 4468 | 930 octave_base_stream::error (const std::string& who, const std::string& msg) |
| 931 { | |
| 932 fail = true; | |
| 6296 | 933 errmsg = who + ": " + msg; |
| 4468 | 934 } |
| 935 | |
| 936 void | |
| 2117 | 937 octave_base_stream::clear (void) |
| 938 { | |
| 4889 | 939 fail = false; |
| 940 errmsg = ""; | |
| 941 } | |
| 942 | |
| 943 void | |
| 944 octave_base_stream::clearerr (void) | |
| 945 { | |
| 4888 | 946 std::istream *is = input_stream (); |
| 947 std::ostream *os = output_stream (); | |
| 948 | |
| 949 if (is) | |
| 950 is->clear (); | |
| 951 | |
| 952 if (os) | |
| 953 os->clear (); | |
| 2117 | 954 } |
| 955 | |
| 956 // Functions that are defined for all input streams (input streams | |
| 957 // are those that define is). | |
| 958 | |
| 3536 | 959 std::string |
| 5275 | 960 octave_base_stream::do_gets (octave_idx_type max_len, bool& err, |
| 4468 | 961 bool strip_newline, const std::string& who) |
| 2117 | 962 { |
| 3523 | 963 std::string retval; |
| 2117 | 964 |
| 965 err = false; | |
| 966 | |
| 3523 | 967 std::istream *isp = input_stream (); |
| 2117 | 968 |
| 969 if (isp) | |
| 970 { | |
| 3523 | 971 std::istream& is = *isp; |
| 2117 | 972 |
| 5765 | 973 std::ostringstream buf; |
| 2117 | 974 |
| 975 int c = 0; | |
| 3553 | 976 int char_count = 0; |
| 6345 | 977 |
| 978 if (max_len != 0) | |
| 2117 | 979 { |
| 6345 | 980 while (is && (c = is.get ()) != EOF) |
| 2117 | 981 { |
| 6345 | 982 char_count++; |
| 983 | |
| 984 if (c == '\n') | |
| 985 { | |
| 986 if (! strip_newline) | |
| 987 buf << static_cast<char> (c); | |
| 988 | |
| 989 break; | |
| 990 } | |
| 991 else | |
| 5760 | 992 buf << static_cast<char> (c); |
| 6345 | 993 |
| 994 if (max_len > 0 && char_count == max_len) | |
| 995 break; | |
| 2117 | 996 } |
| 6345 | 997 } |
| 998 | |
| 999 if (! is.eof () && char_count > 0) | |
| 1000 { | |
| 1001 // GAGME. Matlab seems to check for EOF even if the last | |
| 1002 // character in a file is a newline character. This is NOT | |
| 1003 // what the corresponding C-library functions do. | |
| 1004 int disgusting_compatibility_hack = is.get (); | |
| 1005 if (! is.eof ()) | |
| 1006 is.putback (disgusting_compatibility_hack); | |
| 2117 | 1007 } |
| 1008 | |
| 4224 | 1009 if (is.good () || (is.eof () && char_count > 0)) |
| 5765 | 1010 retval = buf.str (); |
| 4224 | 1011 else |
| 1012 { | |
| 1013 err = true; | |
| 4468 | 1014 |
| 4224 | 1015 if (is.eof () && char_count == 0) |
| 4468 | 1016 error (who, "at end of file"); |
| 4224 | 1017 else |
| 4468 | 1018 error (who, "read error"); |
| 4224 | 1019 } |
| 2117 | 1020 } |
| 1021 else | |
| 1022 { | |
| 1023 err = true; | |
| 4468 | 1024 invalid_operation (who, "reading"); |
| 2117 | 1025 } |
| 1026 | |
| 1027 return retval; | |
| 1028 } | |
| 1029 | |
| 3536 | 1030 std::string |
| 5275 | 1031 octave_base_stream::getl (octave_idx_type max_len, bool& err, const std::string& who) |
| 2117 | 1032 { |
| 4468 | 1033 return do_gets (max_len, err, true, who); |
| 2117 | 1034 } |
| 1035 | |
| 3536 | 1036 std::string |
| 5275 | 1037 octave_base_stream::gets (octave_idx_type max_len, bool& err, const std::string& who) |
| 2117 | 1038 { |
| 4468 | 1039 return do_gets (max_len, err, false, who); |
| 2117 | 1040 } |
| 1041 | |
| 3640 | 1042 #define OCTAVE_SCAN(is, fmt, arg) octave_scan (is, fmt, arg) |
| 3636 | 1043 |
| 1044 template <class T> | |
| 1045 std::istream& | |
| 6767 | 1046 octave_scan_1 (std::istream& is, const scanf_format_elt& fmt, T* valptr) |
| 3636 | 1047 { |
| 3779 | 1048 T& ref = *valptr; |
| 1049 | |
| 1050 switch (fmt.type) | |
| 1051 { | |
| 1052 case 'o': | |
| 4926 | 1053 is >> std::oct >> ref >> std::dec; |
| 3779 | 1054 break; |
| 1055 | |
| 1056 case 'x': | |
| 4926 | 1057 is >> std::hex >> ref >> std::dec; |
| 1058 break; | |
| 1059 | |
| 1060 case 'i': | |
| 1061 { | |
| 1062 int c1 = is.get (); | |
| 1063 | |
| 1064 if (! is.eof ()) | |
| 1065 { | |
| 1066 if (c1 == '0') | |
| 1067 { | |
| 4927 | 1068 int c2 = is.get (); |
| 4926 | 1069 |
| 1070 if (c2 == 'x' || c2 == 'X') | |
| 1071 is >> std::hex >> ref >> std::dec; | |
| 1072 else | |
| 4927 | 1073 { |
| 1074 is.putback (c2); | |
| 1075 | |
| 1076 if (c2 == '0' || c2 == '1' || c2 == '2' | |
| 1077 || c2 == '3' || c2 == '4' || c2 == '5' | |
| 1078 || c2 == '6' || c2 == '7') | |
| 1079 is >> std::oct >> ref >> std::dec; | |
| 1080 else | |
| 1081 ref = 0; | |
| 1082 } | |
| 4926 | 1083 } |
| 1084 else | |
| 1085 { | |
| 1086 is.putback (c1); | |
| 1087 | |
| 1088 is >> ref; | |
| 1089 } | |
| 1090 } | |
| 1091 } | |
| 3779 | 1092 break; |
| 1093 | |
| 1094 default: | |
| 1095 is >> ref; | |
| 1096 break; | |
| 1097 } | |
| 3639 | 1098 |
| 3638 | 1099 return is; |
| 3636 | 1100 } |
| 1101 | |
| 6767 | 1102 template <class T> |
| 1103 std::istream& | |
| 1104 octave_scan (std::istream& is, const scanf_format_elt& fmt, T* valptr) | |
| 1105 { | |
| 1106 if (fmt.width) | |
| 1107 { | |
| 1108 // Limit input to fmt.width characters by reading into a | |
| 1109 // temporary stringstream buffer. | |
| 1110 | |
| 1111 std::string tmp; | |
| 1112 | |
| 1113 is.width (fmt.width); | |
| 1114 is >> tmp; | |
| 1115 | |
| 1116 std::istringstream ss (tmp); | |
| 1117 | |
| 1118 octave_scan_1 (ss, fmt, valptr); | |
| 1119 } | |
| 1120 else | |
| 1121 octave_scan_1 (is, fmt, valptr); | |
| 1122 | |
| 1123 return is; | |
| 1124 } | |
| 1125 | |
| 3779 | 1126 // Note that this specialization is only used for reading characters, not |
| 1127 // character strings. See BEGIN_S_CONVERSION for details. | |
| 1128 | |
| 1129 template<> | |
| 1130 std::istream& | |
| 4661 | 1131 octave_scan<> (std::istream& is, const scanf_format_elt& /* fmt */, |
| 1132 char* valptr) | |
| 3779 | 1133 { |
| 1134 return is >> valptr; | |
| 1135 } | |
| 3636 | 1136 |
| 4595 | 1137 template std::istream& |
| 1138 octave_scan (std::istream&, const scanf_format_elt&, int*); | |
| 1139 | |
| 1140 template std::istream& | |
| 1141 octave_scan (std::istream&, const scanf_format_elt&, long int*); | |
| 1142 | |
| 1143 template std::istream& | |
| 1144 octave_scan (std::istream&, const scanf_format_elt&, short int*); | |
| 1145 | |
| 1146 template std::istream& | |
| 1147 octave_scan (std::istream&, const scanf_format_elt&, unsigned int*); | |
| 1148 | |
| 1149 template std::istream& | |
| 1150 octave_scan (std::istream&, const scanf_format_elt&, unsigned long int*); | |
| 1151 | |
| 1152 template std::istream& | |
| 1153 octave_scan (std::istream&, const scanf_format_elt&, unsigned short int*); | |
| 1154 | |
| 1155 #if 0 | |
| 1156 template std::istream& | |
| 1157 octave_scan (std::istream&, const scanf_format_elt&, float*); | |
| 1158 #endif | |
| 1159 | |
| 5403 | 1160 template<> |
| 5176 | 1161 std::istream& |
| 5403 | 1162 octave_scan<> (std::istream& is, const scanf_format_elt& fmt, double* valptr) |
| 5176 | 1163 { |
| 1164 double& ref = *valptr; | |
| 1165 | |
| 1166 switch (fmt.type) | |
| 1167 { | |
| 1168 case 'e': | |
| 1169 case 'f': | |
| 1170 case 'g': | |
| 1171 { | |
| 5259 | 1172 int c1 = EOF; |
| 5176 | 1173 |
| 1174 while (is && (c1 = is.get ()) != EOF && isspace (c1)) | |
| 1175 /* skip whitespace */; | |
| 1176 | |
| 1177 if (c1 != EOF) | |
| 1178 { | |
| 1179 if (c1 == 'N') | |
| 1180 { | |
| 1181 int c2 = is.get (); | |
| 1182 | |
| 1183 if (c2 != EOF) | |
| 1184 { | |
| 1185 if (c2 == 'A') | |
| 1186 { | |
| 1187 int c3 = is.get (); | |
| 1188 | |
| 1189 if (c3 != EOF) | |
| 1190 { | |
| 1191 is.putback (c3); | |
| 1192 | |
| 1193 if (isspace (c3) || ispunct (c3)) | |
| 1194 ref = octave_NA; | |
| 1195 else | |
| 1196 { | |
| 1197 is.putback (c2); | |
| 1198 is.putback (c1); | |
| 1199 | |
| 1200 is >> ref; | |
| 1201 } | |
| 1202 } | |
| 1203 else | |
| 1204 { | |
| 1205 is.clear (); | |
| 1206 | |
| 1207 ref = octave_NA; | |
| 1208 } | |
| 1209 } | |
| 1210 else if (c2 == 'a') | |
| 1211 { | |
| 1212 int c3 = is.get (); | |
| 1213 | |
| 1214 if (c3 != EOF) | |
| 1215 { | |
| 1216 if (c3 == 'N') | |
| 1217 { | |
| 1218 int c4 = is.get (); | |
| 1219 | |
| 1220 if (c4 != EOF) | |
| 1221 { | |
| 1222 is.putback (c4); | |
| 1223 | |
| 1224 if (isspace (c4) || ispunct (c4)) | |
| 1225 ref = octave_NaN; | |
| 1226 else | |
| 1227 { | |
| 1228 is.putback (c3); | |
| 1229 is.putback (c2); | |
| 1230 is.putback (c1); | |
| 1231 | |
| 1232 is >> ref; | |
| 1233 } | |
| 1234 } | |
| 1235 else | |
| 1236 { | |
| 1237 is.clear (); | |
| 1238 | |
| 1239 ref = octave_NaN; | |
| 1240 } | |
| 1241 } | |
| 1242 else | |
| 1243 { | |
| 1244 is.putback (c3); | |
| 1245 is.putback (c2); | |
| 1246 is.putback (c1); | |
| 1247 | |
| 1248 is >> ref; | |
| 1249 } | |
| 1250 } | |
| 1251 } | |
| 1252 else | |
| 1253 { | |
| 1254 is.putback (c2); | |
| 1255 is.putback (c1); | |
| 1256 | |
| 1257 is >> ref; | |
| 1258 } | |
| 1259 } | |
| 1260 } | |
| 1261 else if (c1 == 'I') | |
| 1262 { | |
| 1263 int c2 = is.get (); | |
| 1264 | |
| 1265 if (c2 != EOF) | |
| 1266 { | |
| 1267 if (c2 == 'n') | |
| 1268 { | |
| 1269 int c3 = is.get (); | |
| 1270 | |
| 1271 if (c3 != EOF) | |
| 6483 | 1272 { |
| 1273 if (c3 == 'f') | |
| 1274 { | |
| 1275 int c4 = is.get (); | |
| 1276 | |
| 1277 if (c4 != EOF) | |
| 1278 { | |
| 1279 is.putback (c4); | |
| 1280 | |
| 1281 if (isspace (c4) || ispunct (c4)) | |
| 1282 ref = octave_Inf; | |
| 1283 else | |
| 1284 { | |
| 1285 is.putback (c3); | |
| 1286 is.putback (c2); | |
| 1287 is.putback (c1); | |
| 1288 | |
| 1289 is >> ref; | |
| 1290 } | |
| 1291 } | |
| 1292 else | |
| 1293 { | |
| 1294 is.clear (); | |
| 1295 | |
| 5176 | 1296 ref = octave_Inf; |
| 6483 | 1297 } |
| 1298 } | |
| 1299 else | |
| 1300 { | |
| 1301 is.putback (c3); | |
| 1302 is.putback (c2); | |
| 1303 is.putback (c1); | |
| 1304 | |
| 1305 is >> ref; | |
| 1306 } | |
| 1307 } | |
| 1308 else | |
| 1309 { | |
| 1310 is.putback (c2); | |
| 1311 is.putback (c1); | |
| 1312 | |
| 1313 is >> ref; | |
| 1314 } | |
| 5176 | 1315 } |
| 1316 } | |
| 1317 } | |
| 1318 else | |
| 1319 { | |
| 1320 is.putback (c1); | |
| 1321 | |
| 1322 is >> ref; | |
| 1323 } | |
| 1324 } | |
| 1325 } | |
| 1326 break; | |
| 1327 | |
| 1328 default: | |
| 1329 panic_impossible (); | |
| 1330 break; | |
| 1331 } | |
| 1332 | |
| 1333 return is; | |
| 1334 } | |
| 1335 | |
| 2572 | 1336 template <class T> |
| 1337 void | |
| 3636 | 1338 do_scanf_conv (std::istream& is, const scanf_format_elt& fmt, |
| 5275 | 1339 T valptr, Matrix& mval, double *data, octave_idx_type& idx, |
| 1340 octave_idx_type& conversion_count, octave_idx_type nr, octave_idx_type max_size, | |
| 3636 | 1341 bool discard) |
| 2572 | 1342 { |
| 3640 | 1343 OCTAVE_SCAN (is, fmt, valptr); |
| 2572 | 1344 |
| 1345 if (is) | |
| 1346 { | |
| 1347 if (idx == max_size && ! discard) | |
| 1348 { | |
| 1349 max_size *= 2; | |
| 1350 | |
| 1351 if (nr > 0) | |
| 1352 mval.resize (nr, max_size / nr, 0.0); | |
| 1353 else | |
| 1354 mval.resize (max_size, 1, 0.0); | |
| 1355 | |
| 1356 data = mval.fortran_vec (); | |
| 1357 } | |
| 1358 | |
| 1359 if (! discard) | |
| 3268 | 1360 { |
| 3559 | 1361 conversion_count++; |
| 3268 | 1362 data[idx++] = *(valptr); |
| 1363 } | |
| 2572 | 1364 } |
| 1365 } | |
| 1366 | |
| 1367 template void | |
| 3878 | 1368 do_scanf_conv (std::istream&, const scanf_format_elt&, int*, |
| 5275 | 1369 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 2572 | 1370 |
| 3233 | 1371 template void |
| 3636 | 1372 do_scanf_conv (std::istream&, const scanf_format_elt&, long int*, |
| 5275 | 1373 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3233 | 1374 |
| 1375 template void | |
| 3636 | 1376 do_scanf_conv (std::istream&, const scanf_format_elt&, short int*, |
| 5275 | 1377 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3233 | 1378 |
| 3878 | 1379 template void |
| 1380 do_scanf_conv (std::istream&, const scanf_format_elt&, unsigned int*, | |
| 5275 | 1381 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3878 | 1382 |
| 1383 template void | |
| 1384 do_scanf_conv (std::istream&, const scanf_format_elt&, unsigned long int*, | |
| 5275 | 1385 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3878 | 1386 |
| 1387 template void | |
| 1388 do_scanf_conv (std::istream&, const scanf_format_elt&, unsigned short int*, | |
| 5275 | 1389 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3878 | 1390 |
| 2600 | 1391 #if 0 |
| 2572 | 1392 template void |
| 3636 | 1393 do_scanf_conv (std::istream&, const scanf_format_elt&, float*, |
| 5275 | 1394 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 2600 | 1395 #endif |
| 2572 | 1396 |
| 1397 template void | |
| 3636 | 1398 do_scanf_conv (std::istream&, const scanf_format_elt&, double*, |
| 5275 | 1399 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 2572 | 1400 |
| 3483 | 1401 #define DO_WHITESPACE_CONVERSION() \ |
| 1402 do \ | |
| 1403 { \ | |
| 1404 int c = EOF; \ | |
| 1405 \ | |
| 1406 while (is && (c = is.get ()) != EOF && isspace (c)) \ | |
| 1407 /* skip whitespace */; \ | |
| 1408 \ | |
| 1409 if (c != EOF) \ | |
| 1410 is.putback (c); \ | |
| 1411 } \ | |
| 1412 while (0) | |
| 1413 | |
| 1414 #define DO_LITERAL_CONVERSION() \ | |
| 1415 do \ | |
| 1416 { \ | |
| 1417 int c = EOF; \ | |
| 1418 \ | |
| 1419 int n = strlen (fmt); \ | |
| 1420 int i = 0; \ | |
| 1421 \ | |
| 1422 while (i < n && is && (c = is.get ()) != EOF) \ | |
| 1423 { \ | |
| 5326 | 1424 if (c == static_cast<unsigned char> (fmt[i])) \ |
| 3483 | 1425 { \ |
| 1426 i++; \ | |
| 1427 continue; \ | |
| 1428 } \ | |
| 1429 else \ | |
| 1430 { \ | |
| 1431 is.putback (c); \ | |
| 1432 break; \ | |
| 1433 } \ | |
| 1434 } \ | |
| 1435 \ | |
| 1436 if (i != n) \ | |
| 3538 | 1437 is.setstate (std::ios::failbit); \ |
| 3483 | 1438 } \ |
| 1439 while (0) | |
| 1440 | |
| 3640 | 1441 #define DO_PCT_CONVERSION() \ |
| 1442 do \ | |
| 1443 { \ | |
| 1444 int c = is.get (); \ | |
| 1445 \ | |
| 1446 if (c != EOF) \ | |
| 1447 { \ | |
| 1448 if (c != '%') \ | |
| 1449 { \ | |
| 1450 is.putback (c); \ | |
| 1451 is.setstate (std::ios::failbit); \ | |
| 1452 } \ | |
| 1453 } \ | |
| 1454 else \ | |
| 1455 is.setstate (std::ios::failbit); \ | |
| 1456 } \ | |
| 1457 while (0) | |
| 1458 | |
| 3483 | 1459 #define BEGIN_C_CONVERSION() \ |
| 3538 | 1460 is.unsetf (std::ios::skipws); \ |
| 3483 | 1461 \ |
| 1462 int width = elt->width ? elt->width : 1; \ | |
| 1463 \ | |
| 4051 | 1464 char *tbuf = new char[width + 1]; \ |
| 3483 | 1465 \ |
| 1466 int c = EOF; \ | |
| 1467 int n = 0; \ | |
| 1468 \ | |
| 1469 while (is && n < width && (c = is.get ()) != EOF) \ | |
| 5760 | 1470 tbuf[n++] = static_cast<char> (c); \ |
| 4051 | 1471 \ |
| 1472 tbuf[n] = '\0'; \ | |
| 3483 | 1473 \ |
| 5266 | 1474 if (n > 0 && c == EOF) \ |
| 1475 is.clear (); \ | |
| 1476 \ | |
| 4051 | 1477 std::string tmp = tbuf; \ |
| 1478 \ | |
| 1479 delete [] tbuf | |
| 3483 | 1480 |
| 1481 // For a `%s' format, skip initial whitespace and then read until the | |
| 5338 | 1482 // next whitespace character or until WIDTH characters have been read. |
| 3483 | 1483 #define BEGIN_S_CONVERSION() \ |
| 1484 int width = elt->width; \ | |
| 1485 \ | |
| 4051 | 1486 std::string tmp; \ |
| 3483 | 1487 \ |
| 1488 do \ | |
| 1489 { \ | |
| 1490 if (width) \ | |
| 5338 | 1491 { \ |
| 1492 char *tbuf = new char [width+1]; \ | |
| 1493 \ | |
| 1494 int c = EOF; \ | |
| 1495 \ | |
| 1496 int n = 0; \ | |
| 1497 \ | |
| 1498 while (is && (c = is.get ()) != EOF) \ | |
| 1499 { \ | |
| 1500 if (! isspace (c)) \ | |
| 1501 { \ | |
| 1502 tbuf[n++] = static_cast<char> (c); \ | |
| 1503 break; \ | |
| 1504 } \ | |
| 1505 } \ | |
| 4051 | 1506 \ |
| 5338 | 1507 while (is && n < width && (c = is.get ()) != EOF) \ |
| 1508 { \ | |
| 1509 if (isspace (c)) \ | |
| 1510 { \ | |
| 1511 is.putback (c); \ | |
| 1512 break; \ | |
| 1513 } \ | |
| 1514 else \ | |
| 1515 tbuf[n++] = static_cast<char> (c); \ | |
| 1516 } \ | |
| 3483 | 1517 \ |
| 5338 | 1518 tbuf[n] = '\0'; \ |
| 1519 \ | |
| 1520 if (n > 0 && c == EOF) \ | |
| 1521 is.clear (); \ | |
| 1522 \ | |
| 4051 | 1523 tmp = tbuf; \ |
| 5338 | 1524 \ |
| 4051 | 1525 delete [] tbuf; \ |
| 5338 | 1526 } \ |
| 3483 | 1527 else \ |
| 5338 | 1528 { \ |
| 1529 is >> std::ws >> tmp; \ | |
| 1530 } \ | |
| 3483 | 1531 } \ |
| 1532 while (0) | |
| 1533 | |
| 1534 // This format must match a nonempty sequence of characters. | |
| 1535 #define BEGIN_CHAR_CLASS_CONVERSION() \ | |
| 1536 int width = elt->width; \ | |
| 1537 \ | |
| 4051 | 1538 std::string tmp; \ |
| 3483 | 1539 \ |
| 1540 do \ | |
| 1541 { \ | |
| 11625 | 1542 if (! width) \ |
|
11643
5d17672228d5
fix missing line continuation in BEGIN_CHAR_CLASS_CONVERSION macro
John W. Eaton <jwe@octave.org>
parents:
11625
diff
changeset
|
1543 width = INT_MAX; \ |
|
5d17672228d5
fix missing line continuation in BEGIN_CHAR_CLASS_CONVERSION macro
John W. Eaton <jwe@octave.org>
parents:
11625
diff
changeset
|
1544 \ |
| 11625 | 1545 std::ostringstream buf; \ |
| 1546 \ | |
| 1547 std::string char_class = elt->char_class; \ | |
| 4051 | 1548 \ |
| 11625 | 1549 int c = EOF; \ |
| 3483 | 1550 \ |
| 11625 | 1551 if (elt->type == '[') \ |
| 1552 { \ | |
| 1553 int chars_read = 0; \ | |
| 1554 while (is && chars_read++ < width && (c = is.get ()) != EOF \ | |
| 1555 && char_class.find (c) != NPOS) \ | |
| 1556 buf << static_cast<char> (c); \ | |
| 3483 | 1557 } \ |
| 1558 else \ | |
| 1559 { \ | |
| 11625 | 1560 int chars_read = 0; \ |
| 1561 while (is && chars_read++ < width && (c = is.get ()) != EOF \ | |
| 1562 && char_class.find (c) == NPOS) \ | |
| 1563 buf << static_cast<char> (c); \ | |
| 1564 } \ | |
| 3483 | 1565 \ |
| 11625 | 1566 if (width == INT_MAX && c != EOF) \ |
| 1567 is.putback (c); \ | |
| 3483 | 1568 \ |
| 11625 | 1569 tmp = buf.str (); \ |
| 3483 | 1570 \ |
| 11625 | 1571 if (tmp.empty ()) \ |
| 1572 is.setstate (std::ios::failbit); \ | |
| 3483 | 1573 } \ |
| 1574 while (0) | |
| 1575 | |
| 3410 | 1576 #define FINISH_CHARACTER_CONVERSION() \ |
| 1577 do \ | |
| 1578 { \ | |
| 4051 | 1579 width = tmp.length (); \ |
| 3410 | 1580 \ |
| 1581 if (is) \ | |
| 1582 { \ | |
| 1583 int i = 0; \ | |
| 1584 \ | |
| 1585 if (! discard) \ | |
| 1586 { \ | |
| 1587 conversion_count++; \ | |
| 1588 \ | |
| 1589 while (i < width && tmp[i] != '\0') \ | |
| 1590 { \ | |
| 1591 if (data_index == max_size) \ | |
| 1592 { \ | |
| 1593 max_size *= 2; \ | |
| 1594 \ | |
| 4420 | 1595 if (all_char_conv) \ |
| 3410 | 1596 { \ |
| 4420 | 1597 if (one_elt_size_spec) \ |
| 3410 | 1598 mval.resize (1, max_size, 0.0); \ |
| 4420 | 1599 else if (nr > 0) \ |
| 1600 mval.resize (nr, max_size / nr, 0.0); \ | |
| 3410 | 1601 else \ |
| 4420 | 1602 panic_impossible (); \ |
| 3410 | 1603 } \ |
| 4420 | 1604 else if (nr > 0) \ |
| 6970 | 1605 mval.resize (nr, max_size / nr, 0.0); \ |
| 4420 | 1606 else \ |
| 1607 mval.resize (max_size, 1, 0.0); \ | |
| 3410 | 1608 \ |
| 1609 data = mval.fortran_vec (); \ | |
| 1610 } \ | |
| 1611 \ | |
| 1612 data[data_index++] = tmp[i++]; \ | |
| 1613 } \ | |
| 1614 } \ | |
| 1615 } \ | |
| 1616 } \ | |
| 1617 while (0) | |
| 2117 | 1618 |
| 1619 octave_value | |
| 1620 octave_base_stream::do_scanf (scanf_format_list& fmt_list, | |
| 5275 | 1621 octave_idx_type nr, octave_idx_type nc, bool one_elt_size_spec, |
| 1622 octave_idx_type& conversion_count, const std::string& who) | |
| 2117 | 1623 { |
| 3268 | 1624 conversion_count = 0; |
| 1625 | |
| 3640 | 1626 int nconv = fmt_list.num_conversions (); |
| 1627 | |
| 5275 | 1628 octave_idx_type data_index = 0; |
| 2121 | 1629 |
| 2117 | 1630 octave_value retval = Matrix (); |
| 1631 | |
| 3268 | 1632 if (nr == 0 || nc == 0) |
| 1633 { | |
| 1634 if (one_elt_size_spec) | |
| 1635 nc = 0; | |
| 1636 | |
| 1637 return Matrix (nr, nc, 0.0); | |
| 1638 } | |
| 1639 | |
| 3523 | 1640 std::istream *isp = input_stream (); |
| 2117 | 1641 |
| 1642 bool all_char_conv = fmt_list.all_character_conversions (); | |
| 1643 | |
| 1644 Matrix mval; | |
| 1645 double *data = 0; | |
| 5275 | 1646 octave_idx_type max_size = 0; |
| 1647 octave_idx_type max_conv = 0; | |
| 1648 | |
| 1649 octave_idx_type final_nr = 0; | |
| 1650 octave_idx_type final_nc = 0; | |
| 2117 | 1651 |
| 3268 | 1652 if (all_char_conv) |
| 1653 { | |
| 4420 | 1654 // Any of these could be resized later (if we have %s |
| 1655 // conversions, we may read more than one element for each | |
| 1656 // conversion). | |
| 1657 | |
| 3268 | 1658 if (one_elt_size_spec) |
| 1659 { | |
| 3410 | 1660 max_size = 512; |
| 1661 mval.resize (1, max_size, 0.0); | |
| 1662 | |
| 3268 | 1663 if (nr > 0) |
| 1664 max_conv = nr; | |
| 1665 } | |
| 4420 | 1666 else if (nr > 0) |
| 3268 | 1667 { |
| 4420 | 1668 if (nc > 0) |
| 1669 { | |
| 1670 mval.resize (nr, nc, 0.0); | |
| 1671 max_size = max_conv = nr * nc; | |
| 1672 } | |
| 1673 else | |
| 1674 { | |
| 1675 mval.resize (nr, 32, 0.0); | |
| 1676 max_size = nr * 32; | |
| 1677 } | |
| 3268 | 1678 } |
| 4420 | 1679 else |
| 1680 panic_impossible (); | |
| 3268 | 1681 } |
| 1682 else if (nr > 0) | |
| 2117 | 1683 { |
| 1684 if (nc > 0) | |
| 1685 { | |
| 4420 | 1686 // Will not resize later. |
| 2117 | 1687 mval.resize (nr, nc, 0.0); |
| 1688 max_size = nr * nc; | |
| 3268 | 1689 max_conv = max_size; |
| 2117 | 1690 } |
| 1691 else | |
| 1692 { | |
| 4420 | 1693 // Maybe resize later. |
| 2117 | 1694 mval.resize (nr, 32, 0.0); |
| 2121 | 1695 max_size = nr * 32; |
| 2117 | 1696 } |
| 1697 } | |
| 1698 else | |
| 1699 { | |
| 4420 | 1700 // Maybe resize later. |
| 2117 | 1701 mval.resize (32, 1, 0.0); |
| 1702 max_size = 32; | |
| 1703 } | |
| 1704 | |
| 4420 | 1705 data = mval.fortran_vec (); |
| 1706 | |
| 2117 | 1707 if (isp) |
| 1708 { | |
| 3523 | 1709 std::istream& is = *isp; |
| 2117 | 1710 |
| 1711 const scanf_format_elt *elt = fmt_list.first (); | |
| 1712 | |
| 3538 | 1713 std::ios::fmtflags flags = is.flags (); |
| 2213 | 1714 |
| 2117 | 1715 for (;;) |
| 1716 { | |
| 4153 | 1717 OCTAVE_QUIT; |
| 1718 | |
| 2117 | 1719 if (elt) |
| 1720 { | |
| 3268 | 1721 if (max_conv > 0 && conversion_count == max_conv) |
| 1722 { | |
| 1723 if (all_char_conv && one_elt_size_spec) | |
| 1724 { | |
| 1725 final_nr = 1; | |
| 1726 final_nc = data_index; | |
| 1727 } | |
| 1728 else | |
| 1729 { | |
| 1730 final_nr = nr; | |
| 1731 final_nc = (data_index - 1) / nr + 1; | |
| 1732 } | |
| 1733 | |
| 1734 break; | |
| 1735 } | |
| 1736 else if (data_index == max_size) | |
| 2117 | 1737 { |
| 3410 | 1738 max_size *= 2; |
| 1739 | |
| 4420 | 1740 if (all_char_conv) |
| 2687 | 1741 { |
| 4420 | 1742 if (one_elt_size_spec) |
| 3410 | 1743 mval.resize (1, max_size, 0.0); |
| 4420 | 1744 else if (nr > 0) |
| 1745 mval.resize (nr, max_size / nr, 0.0); | |
| 3410 | 1746 else |
| 4420 | 1747 panic_impossible (); |
| 2687 | 1748 } |
| 4420 | 1749 else if (nr > 0) |
| 6970 | 1750 mval.resize (nr, max_size / nr, 0.0); |
| 4420 | 1751 else |
| 1752 mval.resize (max_size, 1, 0.0); | |
| 3410 | 1753 |
| 1754 data = mval.fortran_vec (); | |
| 2117 | 1755 } |
| 1756 | |
| 1757 const char *fmt = elt->text; | |
| 1758 | |
| 1759 bool discard = elt->discard; | |
| 1760 | |
| 1761 switch (elt->type) | |
| 1762 { | |
| 3483 | 1763 case scanf_format_elt::whitespace_conversion: |
| 1764 DO_WHITESPACE_CONVERSION (); | |
| 1765 break; | |
| 1766 | |
| 1767 case scanf_format_elt::literal_conversion: | |
| 1768 DO_LITERAL_CONVERSION (); | |
| 1769 break; | |
| 1770 | |
| 2117 | 1771 case '%': |
| 3640 | 1772 DO_PCT_CONVERSION (); |
| 3483 | 1773 break; |
| 2117 | 1774 |
| 3878 | 1775 case 'd': case 'i': |
| 2117 | 1776 { |
| 3233 | 1777 switch (elt->modifier) |
| 1778 { | |
| 1779 case 'h': | |
| 1780 { | |
| 1781 short int tmp; | |
| 3779 | 1782 do_scanf_conv (is, *elt, &tmp, mval, data, |
| 3268 | 1783 data_index, conversion_count, |
| 3233 | 1784 nr, max_size, discard); |
| 1785 } | |
| 3483 | 1786 break; |
| 3233 | 1787 |
| 1788 case 'l': | |
| 1789 { | |
| 1790 long int tmp; | |
| 3779 | 1791 do_scanf_conv (is, *elt, &tmp, mval, data, |
| 3268 | 1792 data_index, conversion_count, |
| 3233 | 1793 nr, max_size, discard); |
| 1794 } | |
| 3483 | 1795 break; |
| 3233 | 1796 |
| 1797 default: | |
| 1798 { | |
| 1799 int tmp; | |
| 3779 | 1800 do_scanf_conv (is, *elt, &tmp, mval, data, |
| 3268 | 1801 data_index, conversion_count, |
| 3233 | 1802 nr, max_size, discard); |
| 1803 } | |
| 3483 | 1804 break; |
| 3233 | 1805 } |
| 2117 | 1806 } |
| 3483 | 1807 break; |
| 2117 | 1808 |
| 3878 | 1809 case 'o': case 'u': case 'x': |
| 1810 { | |
| 1811 switch (elt->modifier) | |
| 1812 { | |
| 1813 case 'h': | |
| 1814 { | |
| 1815 unsigned short int tmp; | |
| 1816 do_scanf_conv (is, *elt, &tmp, mval, data, | |
| 1817 data_index, conversion_count, | |
| 1818 nr, max_size, discard); | |
| 1819 } | |
| 1820 break; | |
| 1821 | |
| 1822 case 'l': | |
| 1823 { | |
| 1824 unsigned long int tmp; | |
| 1825 do_scanf_conv (is, *elt, &tmp, mval, data, | |
| 1826 data_index, conversion_count, | |
| 1827 nr, max_size, discard); | |
| 1828 } | |
| 1829 break; | |
| 1830 | |
| 1831 default: | |
| 1832 { | |
| 1833 unsigned int tmp; | |
| 1834 do_scanf_conv (is, *elt, &tmp, mval, data, | |
| 1835 data_index, conversion_count, | |
| 1836 nr, max_size, discard); | |
| 1837 } | |
| 1838 break; | |
| 1839 } | |
| 1840 } | |
| 1841 break; | |
| 1842 | |
| 2117 | 1843 case 'e': case 'f': case 'g': |
| 1844 { | |
| 2600 | 1845 double tmp; |
| 1846 | |
| 3779 | 1847 do_scanf_conv (is, *elt, &tmp, mval, data, |
| 3268 | 1848 data_index, conversion_count, |
| 2600 | 1849 nr, max_size, discard); |
| 2117 | 1850 } |
| 3483 | 1851 break; |
| 2117 | 1852 |
| 2213 | 1853 case 'c': |
| 3410 | 1854 { |
| 3483 | 1855 BEGIN_C_CONVERSION (); |
| 3410 | 1856 |
| 1857 FINISH_CHARACTER_CONVERSION (); | |
| 3483 | 1858 |
| 1859 is.setf (flags); | |
| 3410 | 1860 } |
| 1861 break; | |
| 2213 | 1862 |
| 2117 | 1863 case 's': |
| 1864 { | |
| 3483 | 1865 BEGIN_S_CONVERSION (); |
| 3268 | 1866 |
| 3410 | 1867 FINISH_CHARACTER_CONVERSION (); |
| 2117 | 1868 } |
| 3483 | 1869 break; |
| 1870 | |
| 1871 case '[': case '^': | |
| 1872 { | |
| 1873 BEGIN_CHAR_CLASS_CONVERSION (); | |
| 1874 | |
| 1875 FINISH_CHARACTER_CONVERSION (); | |
| 1876 } | |
| 1877 break; | |
| 1878 | |
| 1879 case 'p': | |
| 4468 | 1880 error ("%s: unsupported format specifier", who.c_str ()); |
| 2117 | 1881 break; |
| 1882 | |
| 1883 default: | |
| 4468 | 1884 error ("%s: internal format error", who.c_str ()); |
| 2117 | 1885 break; |
| 1886 } | |
| 1887 | |
| 1888 if (! ok ()) | |
| 1889 { | |
| 1890 break; | |
| 1891 } | |
| 1892 else if (! is) | |
| 1893 { | |
| 3268 | 1894 if (all_char_conv) |
| 2117 | 1895 { |
| 3268 | 1896 if (one_elt_size_spec) |
| 1897 { | |
| 1898 final_nr = 1; | |
| 1899 final_nc = data_index; | |
| 1900 } | |
| 1901 else if (data_index > nr) | |
| 2117 | 1902 { |
| 2759 | 1903 final_nr = nr; |
| 3268 | 1904 final_nc = (data_index - 1) / nr + 1; |
| 2117 | 1905 } |
| 1906 else | |
| 1907 { | |
| 3268 | 1908 final_nr = data_index; |
| 1909 final_nc = 1; | |
| 1910 } | |
| 1911 } | |
| 1912 else if (nr > 0) | |
| 1913 { | |
| 1914 if (data_index > nr) | |
| 1915 { | |
| 1916 final_nr = nr; | |
| 1917 final_nc = (data_index - 1) / nr + 1; | |
| 1918 } | |
| 1919 else | |
| 1920 { | |
| 1921 final_nr = data_index; | |
| 2117 | 1922 final_nc = 1; |
| 1923 } | |
| 1924 } | |
| 1925 else | |
| 1926 { | |
| 3268 | 1927 final_nr = data_index; |
| 2759 | 1928 final_nc = 1; |
| 1929 } | |
| 1930 | |
| 3337 | 1931 // If it looks like we have a matching failure, then |
| 1932 // reset the failbit in the stream state. | |
| 1933 | |
| 3538 | 1934 if (is.rdstate () & std::ios::failbit) |
| 1935 is.clear (is.rdstate () & (~std::ios::failbit)); | |
| 3337 | 1936 |
| 5775 | 1937 // FIXME -- is this the right thing to do? |
| 3342 | 1938 |
| 1939 if (interactive && name () == "stdin") | |
| 2759 | 1940 { |
| 1941 is.clear (); | |
| 1942 | |
| 1943 // Skip to end of line. | |
| 1944 | |
| 1945 bool err; | |
| 4468 | 1946 do_gets (-1, err, false, who); |
| 2117 | 1947 } |
| 1948 | |
| 1949 break; | |
| 1950 } | |
| 1951 } | |
| 1952 else | |
| 1953 { | |
| 4468 | 1954 error ("%s: internal format error", who.c_str ()); |
| 2117 | 1955 break; |
| 1956 } | |
| 1957 | |
| 3640 | 1958 elt = fmt_list.next (nconv > 0); |
| 2117 | 1959 } |
| 1960 } | |
| 1961 | |
| 1962 if (ok ()) | |
| 1963 { | |
| 2121 | 1964 mval.resize (final_nr, final_nc, 0.0); |
| 2117 | 1965 |
| 3268 | 1966 retval = mval; |
| 1967 | |
| 2117 | 1968 if (all_char_conv) |
| 5279 | 1969 retval = retval.convert_to_str (false, true); |
| 2117 | 1970 } |
| 1971 | |
| 1972 return retval; | |
| 1973 } | |
| 1974 | |
| 1975 octave_value | |
| 3810 | 1976 octave_base_stream::scanf (const std::string& fmt, const Array<double>& size, |
| 5275 | 1977 octave_idx_type& conversion_count, const std::string& who) |
| 2117 | 1978 { |
| 1979 octave_value retval = Matrix (); | |
| 1980 | |
| 3559 | 1981 conversion_count = 0; |
| 2117 | 1982 |
| 3523 | 1983 std::istream *isp = input_stream (); |
| 2117 | 1984 |
| 1985 if (isp) | |
| 1986 { | |
| 1987 scanf_format_list fmt_list (fmt); | |
| 1988 | |
| 3640 | 1989 if (fmt_list.num_conversions () == -1) |
| 4468 | 1990 ::error ("%s: invalid format specified", who.c_str ()); |
| 3640 | 1991 else |
| 2117 | 1992 { |
| 5275 | 1993 octave_idx_type nr = -1; |
| 1994 octave_idx_type nc = -1; | |
| 3640 | 1995 |
| 1996 bool one_elt_size_spec; | |
| 1997 | |
| 4468 | 1998 get_size (size, nr, nc, one_elt_size_spec, who); |
| 3640 | 1999 |
| 2000 if (! error_state) | |
| 2001 retval = do_scanf (fmt_list, nr, nc, one_elt_size_spec, | |
| 4468 | 2002 conversion_count, who); |
| 2215 | 2003 } |
| 2004 } | |
| 2005 else | |
| 4468 | 2006 invalid_operation (who, "reading"); |
| 2572 | 2007 |
| 2008 return retval; | |
| 2009 } | |
| 2010 | |
| 2712 | 2011 bool |
| 2012 octave_base_stream::do_oscanf (const scanf_format_elt *elt, | |
| 4468 | 2013 octave_value& retval, const std::string& who) |
| 2572 | 2014 { |
| 2712 | 2015 bool quit = false; |
| 2215 | 2016 |
| 3523 | 2017 std::istream *isp = input_stream (); |
| 2215 | 2018 |
| 2019 if (isp) | |
| 2020 { | |
| 3523 | 2021 std::istream& is = *isp; |
| 2215 | 2022 |
| 3538 | 2023 std::ios::fmtflags flags = is.flags (); |
| 2215 | 2024 |
| 2025 if (elt) | |
| 2026 { | |
| 2027 const char *fmt = elt->text; | |
| 2028 | |
| 2029 bool discard = elt->discard; | |
| 2030 | |
| 2031 switch (elt->type) | |
| 2032 { | |
| 3483 | 2033 case scanf_format_elt::whitespace_conversion: |
| 2034 DO_WHITESPACE_CONVERSION (); | |
| 2035 break; | |
| 2036 | |
| 2037 case scanf_format_elt::literal_conversion: | |
| 2038 DO_LITERAL_CONVERSION (); | |
| 2039 break; | |
| 2040 | |
| 2215 | 2041 case '%': |
| 2042 { | |
| 3640 | 2043 DO_PCT_CONVERSION (); |
| 2044 | |
| 2045 if (! is) | |
| 2712 | 2046 quit = true; |
| 3640 | 2047 |
| 2215 | 2048 } |
| 2049 break; | |
| 2050 | |
| 3878 | 2051 case 'd': case 'i': |
| 2215 | 2052 { |
| 2053 int tmp; | |
| 2054 | |
| 3640 | 2055 if (OCTAVE_SCAN (is, *elt, &tmp)) |
| 2712 | 2056 { |
| 2057 if (! discard) | |
| 4233 | 2058 retval = tmp; |
| 2712 | 2059 } |
| 2060 else | |
| 2061 quit = true; | |
| 2215 | 2062 } |
| 2063 break; | |
| 2064 | |
| 3878 | 2065 case 'o': case 'u': case 'x': |
| 2066 { | |
| 2067 long int tmp; | |
| 2068 | |
| 2069 if (OCTAVE_SCAN (is, *elt, &tmp)) | |
| 2070 { | |
| 2071 if (! discard) | |
| 4254 | 2072 retval = tmp; |
| 3878 | 2073 } |
| 2074 else | |
| 2075 quit = true; | |
| 2076 } | |
| 2077 break; | |
| 2078 | |
| 2215 | 2079 case 'e': case 'f': case 'g': |
| 2080 { | |
| 2600 | 2081 double tmp; |
| 2082 | |
| 3640 | 2083 if (OCTAVE_SCAN (is, *elt, &tmp)) |
| 2712 | 2084 { |
| 2085 if (! discard) | |
| 2086 retval = tmp; | |
| 2087 } | |
| 2088 else | |
| 2089 quit = true; | |
| 2215 | 2090 } |
| 2091 break; | |
| 2092 | |
| 2093 case 'c': | |
| 2094 { | |
| 3483 | 2095 BEGIN_C_CONVERSION (); |
| 2096 | |
| 2097 if (! discard) | |
| 2098 retval = tmp; | |
| 2099 | |
| 2100 if (! is) | |
| 2712 | 2101 quit = true; |
| 2215 | 2102 |
| 2103 is.setf (flags); | |
| 2104 } | |
| 2105 break; | |
| 2106 | |
| 2107 case 's': | |
| 2108 { | |
| 3483 | 2109 BEGIN_S_CONVERSION (); |
| 2110 | |
| 2111 if (! discard) | |
| 2112 retval = tmp; | |
| 2572 | 2113 |
| 3268 | 2114 if (! is) |
| 2115 quit = true; | |
| 2215 | 2116 } |
| 2117 break; | |
| 2118 | |
| 3483 | 2119 case '[': case '^': |
| 2120 { | |
| 2121 BEGIN_CHAR_CLASS_CONVERSION (); | |
| 2122 | |
| 2123 if (! discard) | |
| 2124 retval = tmp; | |
| 2125 | |
| 2126 if (! is) | |
| 2127 quit = true; | |
| 2128 } | |
| 2129 break; | |
| 2130 | |
| 2131 case 'p': | |
| 4468 | 2132 error ("%s: unsupported format specifier", who.c_str ()); |
| 2215 | 2133 break; |
| 2134 | |
| 2135 default: | |
| 4468 | 2136 error ("%s: internal format error", who.c_str ()); |
| 2215 | 2137 break; |
| 2138 } | |
| 2139 } | |
| 2140 | |
| 2141 if (ok () && is.fail ()) | |
| 2142 { | |
| 4468 | 2143 error ("%s: read error", who.c_str ()); |
| 3483 | 2144 |
| 5775 | 2145 // FIXME -- is this the right thing to do? |
| 3342 | 2146 |
| 2147 if (interactive && name () == "stdin") | |
| 2215 | 2148 { |
| 2149 // Skip to end of line. | |
| 2150 | |
| 2151 bool err; | |
| 4468 | 2152 do_gets (-1, err, false, who); |
| 2215 | 2153 } |
| 2154 } | |
| 2155 } | |
| 2156 | |
| 2712 | 2157 return quit; |
| 2215 | 2158 } |
| 2159 | |
| 2160 octave_value_list | |
| 4468 | 2161 octave_base_stream::oscanf (const std::string& fmt, const std::string& who) |
| 2215 | 2162 { |
| 2163 octave_value_list retval; | |
| 2164 | |
| 3523 | 2165 std::istream *isp = input_stream (); |
| 2215 | 2166 |
| 2167 if (isp) | |
| 2168 { | |
| 3523 | 2169 std::istream& is = *isp; |
| 2215 | 2170 |
| 2171 scanf_format_list fmt_list (fmt); | |
| 2172 | |
| 2173 int nconv = fmt_list.num_conversions (); | |
| 2174 | |
| 3640 | 2175 if (nconv == -1) |
| 4468 | 2176 ::error ("%s: invalid format specified", who.c_str ()); |
| 3640 | 2177 else |
| 2215 | 2178 { |
| 3640 | 2179 is.clear (); |
| 2180 | |
| 2181 int len = fmt_list.length (); | |
| 2182 | |
| 2183 retval.resize (nconv+1, Matrix ()); | |
| 2184 | |
| 2185 const scanf_format_elt *elt = fmt_list.first (); | |
| 2186 | |
| 2187 int num_values = 0; | |
| 2188 | |
| 2189 bool quit = false; | |
| 2190 | |
| 5275 | 2191 for (octave_idx_type i = 0; i < len; i++) |
| 3640 | 2192 { |
| 2193 octave_value tmp; | |
| 2194 | |
| 4468 | 2195 quit = do_oscanf (elt, tmp, who); |
| 3640 | 2196 |
| 2197 if (quit) | |
| 2198 break; | |
| 2199 else | |
| 2200 { | |
| 2201 if (tmp.is_defined ()) | |
| 2202 retval (num_values++) = tmp; | |
| 2203 | |
| 2204 if (! ok ()) | |
| 2205 break; | |
| 2206 | |
| 2207 elt = fmt_list.next (nconv > 0); | |
| 2208 } | |
| 2209 } | |
| 2210 | |
| 4233 | 2211 retval(nconv) = num_values; |
| 3640 | 2212 |
| 2213 if (! quit) | |
| 2214 { | |
| 2215 // Pick up any trailing stuff. | |
| 2216 if (ok () && len > nconv) | |
| 2217 { | |
| 2218 octave_value tmp; | |
| 3704 | 2219 |
| 2220 elt = fmt_list.next (); | |
| 2221 | |
| 4468 | 2222 do_oscanf (elt, tmp, who); |
| 3640 | 2223 } |
| 2224 } | |
| 2117 | 2225 } |
| 2226 } | |
| 2227 else | |
| 4468 | 2228 invalid_operation (who, "reading"); |
| 2117 | 2229 |
| 2230 return retval; | |
| 2231 } | |
| 2232 | |
| 2233 // Functions that are defined for all output streams (output streams | |
| 2234 // are those that define os). | |
| 2235 | |
| 2236 int | |
| 2237 octave_base_stream::flush (void) | |
| 2238 { | |
| 2239 int retval = -1; | |
| 2240 | |
| 3523 | 2241 std::ostream *os = output_stream (); |
| 2117 | 2242 |
| 2243 if (os) | |
| 2244 { | |
| 2245 os->flush (); | |
| 2246 | |
| 2247 if (os->good ()) | |
| 2248 retval = 0; | |
| 2249 } | |
| 2250 else | |
| 2251 invalid_operation ("fflush", "writing"); | |
| 2252 | |
| 2253 return retval; | |
| 2254 } | |
| 2255 | |
| 2256 class | |
| 2257 printf_value_cache | |
| 2258 { | |
| 2259 public: | |
| 2260 | |
| 3653 | 2261 enum state { ok, conversion_error }; |
| 2117 | 2262 |
| 2263 printf_value_cache (const octave_value_list& args) | |
| 2264 : values (args), val_idx (0), elt_idx (0), | |
| 2265 n_vals (values.length ()), n_elts (0), data (0), | |
| 2266 curr_state (ok) { } | |
| 2267 | |
| 2268 ~printf_value_cache (void) { } | |
| 2269 | |
| 2270 // Get the current value as a double and advance the internal pointer. | |
| 2271 double double_value (void); | |
| 2272 | |
| 2273 // Get the current value as an int and advance the internal pointer. | |
| 2274 int int_value (void); | |
| 2275 | |
| 2276 // Get the current value as a string and advance the internal pointer. | |
| 3523 | 2277 std::string string_value (void); |
| 2117 | 2278 |
| 3145 | 2279 operator bool () const { return (curr_state == ok); } |
| 2117 | 2280 |
| 3653 | 2281 bool exhausted (void) { return (val_idx >= n_vals); } |
| 2117 | 2282 |
| 2283 private: | |
| 2284 | |
| 2285 const octave_value_list values; | |
| 2286 int val_idx; | |
| 2287 int elt_idx; | |
| 2288 int n_vals; | |
| 2289 int n_elts; | |
| 2290 const double *data; | |
| 4874 | 2291 NDArray curr_val; |
| 2117 | 2292 state curr_state; |
| 2293 | |
| 2294 // Must create value cache with values! | |
| 2295 | |
| 2296 printf_value_cache (void); | |
| 2297 | |
| 2298 // No copying! | |
| 2299 | |
| 2300 printf_value_cache (const printf_value_cache&); | |
| 2301 | |
| 2302 printf_value_cache& operator = (const printf_value_cache&); | |
| 2303 }; | |
| 2304 | |
| 2305 double | |
| 2306 printf_value_cache::double_value (void) | |
| 2307 { | |
| 2308 double retval = 0.0; | |
| 2309 | |
| 3711 | 2310 if (exhausted ()) |
| 2311 curr_state = conversion_error; | |
| 2312 | |
| 2313 while (! exhausted ()) | |
| 2117 | 2314 { |
| 2315 if (! data) | |
| 2316 { | |
| 2317 octave_value tmp_val = values (val_idx); | |
| 2318 | |
| 5476 | 2319 // Force string conversion here for compatibility. |
| 2320 | |
| 2321 curr_val = tmp_val.array_value (true); | |
| 2117 | 2322 |
| 2323 if (! error_state) | |
| 2324 { | |
| 2325 elt_idx = 0; | |
| 2326 n_elts = curr_val.length (); | |
| 2327 data = curr_val.data (); | |
| 2328 } | |
| 2329 else | |
| 2330 { | |
| 2331 curr_state = conversion_error; | |
| 2332 break; | |
| 2333 } | |
| 2334 } | |
| 2335 | |
| 2336 if (elt_idx < n_elts) | |
| 2337 { | |
| 3653 | 2338 retval = data[elt_idx++]; |
| 2339 | |
| 2340 if (elt_idx >= n_elts) | |
| 2341 { | |
| 2342 elt_idx = 0; | |
| 2343 val_idx++; | |
| 2344 data = 0; | |
| 2345 } | |
| 2346 | |
| 2117 | 2347 break; |
| 2348 } | |
| 2349 else | |
| 2350 { | |
| 2351 val_idx++; | |
| 2352 data = 0; | |
| 3969 | 2353 |
| 2354 if (n_elts == 0 && exhausted ()) | |
| 2355 curr_state = conversion_error; | |
| 2356 | |
| 2117 | 2357 continue; |
| 2358 } | |
| 2359 } | |
| 2360 | |
| 2361 return retval; | |
| 2362 } | |
| 2363 | |
| 2364 int | |
| 2365 printf_value_cache::int_value (void) | |
| 2366 { | |
| 2367 int retval = 0; | |
| 2368 | |
| 2369 double dval = double_value (); | |
| 2370 | |
| 2371 if (! error_state) | |
| 2372 { | |
| 2373 if (D_NINT (dval) == dval) | |
| 2374 retval = NINT (dval); | |
| 2375 else | |
| 2376 curr_state = conversion_error; | |
| 2377 } | |
| 2378 | |
| 2379 return retval; | |
| 2380 } | |
| 2381 | |
| 3536 | 2382 std::string |
| 2117 | 2383 printf_value_cache::string_value (void) |
| 2384 { | |
| 3523 | 2385 std::string retval; |
| 2117 | 2386 |
| 4425 | 2387 if (exhausted ()) |
| 2388 curr_state = conversion_error; | |
| 4257 | 2389 else |
| 2117 | 2390 { |
| 4425 | 2391 octave_value tval = values (val_idx++); |
| 2392 | |
| 2393 if (tval.rows () == 1) | |
| 2394 retval = tval.string_value (); | |
| 2395 else | |
| 2396 { | |
| 2397 // In the name of Matlab compatibility. | |
| 2398 | |
| 2399 charMatrix chm = tval.char_matrix_value (); | |
| 2400 | |
| 5275 | 2401 octave_idx_type nr = chm.rows (); |
| 2402 octave_idx_type nc = chm.columns (); | |
| 4425 | 2403 |
| 2404 int k = 0; | |
| 2405 | |
| 2406 retval.resize (nr * nc, '\0'); | |
| 2407 | |
| 5275 | 2408 for (octave_idx_type j = 0; j < nc; j++) |
| 2409 for (octave_idx_type i = 0; i < nr; i++) | |
| 4425 | 2410 retval[k++] = chm(i,j); |
| 2411 } | |
| 2412 | |
| 2413 if (error_state) | |
| 2414 curr_state = conversion_error; | |
| 2117 | 2415 } |
| 4257 | 2416 |
| 2117 | 2417 return retval; |
| 2418 } | |
| 2419 | |
| 2420 // Ugh again and again. | |
| 2421 | |
| 2572 | 2422 template <class T> |
| 3620 | 2423 int |
| 3523 | 2424 do_printf_conv (std::ostream& os, const char *fmt, int nsa, int sa_1, |
| 4468 | 2425 int sa_2, T arg, const std::string& who) |
| 2572 | 2426 { |
| 3620 | 2427 int retval = 0; |
| 2428 | |
| 2572 | 2429 switch (nsa) |
| 2430 { | |
| 2431 case 2: | |
| 3640 | 2432 retval = octave_format (os, fmt, sa_1, sa_2, arg); |
| 2572 | 2433 break; |
| 2434 | |
| 2435 case 1: | |
| 3640 | 2436 retval = octave_format (os, fmt, sa_1, arg); |
| 2572 | 2437 break; |
| 2438 | |
| 2439 case 0: | |
| 3640 | 2440 retval = octave_format (os, fmt, arg); |
| 2572 | 2441 break; |
| 2442 | |
| 2443 default: | |
| 4468 | 2444 ::error ("%s: internal error handling format", who.c_str ()); |
| 2572 | 2445 break; |
| 2446 } | |
| 3620 | 2447 |
| 2448 return retval; | |
| 2572 | 2449 } |
| 2450 | |
| 3620 | 2451 template int |
| 4468 | 2452 do_printf_conv (std::ostream&, const char*, int, int, int, int, |
| 2453 const std::string&); | |
| 2454 | |
| 2455 template int | |
| 2456 do_printf_conv (std::ostream&, const char*, int, int, int, long, | |
| 2457 const std::string&); | |
| 2458 | |
| 3878 | 2459 template int |
| 4468 | 2460 do_printf_conv (std::ostream&, const char*, int, int, int, unsigned int, |
| 2461 const std::string&); | |
| 2462 | |
| 2463 template int | |
| 2464 do_printf_conv (std::ostream&, const char*, int, int, int, unsigned long, | |
| 2465 const std::string&); | |
| 2466 | |
| 2467 template int | |
| 2468 do_printf_conv (std::ostream&, const char*, int, int, int, double, | |
| 2469 const std::string&); | |
| 2470 | |
| 2471 template int | |
| 2472 do_printf_conv (std::ostream&, const char*, int, int, int, const char*, | |
| 2473 const std::string&); | |
| 2117 | 2474 |
| 6492 | 2475 #define DO_DOUBLE_CONV(TQUAL) \ |
| 2476 do \ | |
| 2477 { \ | |
| 7199 | 2478 if (val > std::numeric_limits<TQUAL long>::max () \ |
| 2479 || val < std::numeric_limits<TQUAL long>::min ()) \ | |
| 6492 | 2480 { \ |
| 7199 | 2481 std::string tfmt = fmt; \ |
| 6492 | 2482 \ |
| 7199 | 2483 tfmt.replace (tfmt.rfind (elt->type), 1, ".f"); \ |
| 6492 | 2484 \ |
| 7199 | 2485 if (elt->modifier == 'l') \ |
| 2486 tfmt.replace (tfmt.rfind (elt->modifier), 1, ""); \ | |
| 2487 \ | |
| 2488 retval += do_printf_conv (os, tfmt.c_str (), nsa, sa_1, sa_2, \ | |
| 2489 val, who); \ | |
| 6492 | 2490 } \ |
| 2491 else \ | |
| 7199 | 2492 retval += do_printf_conv (os, fmt, nsa, sa_1, sa_2, \ |
| 2493 static_cast<TQUAL long> (val), who); \ | |
| 6492 | 2494 } \ |
| 2495 while (0) | |
| 2496 | |
| 2117 | 2497 int |
| 2498 octave_base_stream::do_printf (printf_format_list& fmt_list, | |
| 4468 | 2499 const octave_value_list& args, |
| 2500 const std::string& who) | |
| 2117 | 2501 { |
| 3620 | 2502 int retval = 0; |
| 2117 | 2503 |
| 3640 | 2504 int nconv = fmt_list.num_conversions (); |
| 2505 | |
| 3523 | 2506 std::ostream *osp = output_stream (); |
| 2117 | 2507 |
| 2508 if (osp) | |
| 2509 { | |
| 3523 | 2510 std::ostream& os = *osp; |
| 2117 | 2511 |
| 2512 const printf_format_elt *elt = fmt_list.first (); | |
| 2513 | |
| 2514 printf_value_cache val_cache (args); | |
| 2515 | |
| 2516 for (;;) | |
| 2517 { | |
| 4153 | 2518 OCTAVE_QUIT; |
| 2519 | |
| 2117 | 2520 if (elt) |
| 2521 { | |
| 3640 | 2522 // NSA is the number of `star' args to convert. |
| 2523 | |
| 2524 int nsa = (elt->fw < 0) + (elt->prec < 0); | |
| 2117 | 2525 |
| 2526 int sa_1 = 0; | |
| 2527 int sa_2 = 0; | |
| 2528 | |
| 2529 if (nsa > 0) | |
| 2530 { | |
| 2531 sa_1 = val_cache.int_value (); | |
| 2532 | |
| 2533 if (! val_cache) | |
| 2534 break; | |
| 2535 else | |
| 2536 { | |
| 2537 if (nsa > 1) | |
| 2538 { | |
| 2539 sa_2 = val_cache.int_value (); | |
| 2540 | |
| 2541 if (! val_cache) | |
| 2542 break; | |
| 2543 } | |
| 2544 } | |
| 2545 } | |
| 2546 | |
| 2547 const char *fmt = elt->text; | |
| 2548 | |
| 3640 | 2549 if (elt->type == '%') |
| 2550 { | |
| 2551 os << "%"; | |
| 2552 retval++; | |
| 2553 } | |
| 2554 else if (elt->args == 0 && elt->text) | |
| 2555 { | |
| 2556 os << elt->text; | |
| 2557 retval += strlen (elt->text); | |
| 2558 } | |
| 4257 | 2559 else if (elt->type == 's') |
| 3640 | 2560 { |
| 2561 std::string val = val_cache.string_value (); | |
| 2562 | |
| 2563 if (val_cache) | |
| 2564 retval += do_printf_conv (os, fmt, nsa, sa_1, | |
| 4468 | 2565 sa_2, val.c_str (), who); |
| 3640 | 2566 else |
| 2567 break; | |
| 2568 } | |
| 2117 | 2569 else |
| 2570 { | |
| 3640 | 2571 double val = val_cache.double_value (); |
| 2572 | |
| 2573 if (val_cache) | |
| 2117 | 2574 { |
| 6492 | 2575 if (lo_ieee_isnan (val) || xisinf (val)) |
| 4303 | 2576 { |
| 2577 std::string tfmt = fmt; | |
| 6865 | 2578 std::string::size_type i1, i2; |
| 2579 | |
| 2580 tfmt.replace ((i1 = tfmt.rfind (elt->type)), | |
| 2581 1, 1, 's'); | |
| 2582 | |
| 2583 if ((i2 = tfmt.rfind ('.')) != NPOS && i2 < i1) | |
| 2584 { | |
| 2585 tfmt.erase (i2, i1-i2); | |
| 2586 if (elt->prec < 0) | |
| 2587 nsa--; | |
| 2588 } | |
| 6492 | 2589 |
| 2590 const char *tval = xisinf (val) | |
| 2591 ? (val < 0 ? "-Inf" : "Inf") | |
| 2592 : (lo_ieee_is_NA (val) ? "NA" : "NaN"); | |
| 2593 | |
| 2594 retval += do_printf_conv (os, tfmt.c_str (), | |
| 2595 nsa, sa_1, sa_2, | |
| 2596 tval, who); | |
| 4303 | 2597 } |
| 2598 else | |
| 3640 | 2599 { |
| 6492 | 2600 char type = elt->type; |
| 2601 | |
| 2602 switch (type) | |
| 4303 | 2603 { |
| 2604 case 'd': case 'i': case 'c': | |
| 7227 | 2605 DO_DOUBLE_CONV (OCTAVE_EMPTY_CPP_ARG); |
| 4303 | 2606 break; |
| 2607 | |
| 2608 case 'o': case 'x': case 'X': case 'u': | |
| 6492 | 2609 DO_DOUBLE_CONV (unsigned); |
| 4303 | 2610 break; |
| 2611 | |
| 2612 case 'f': case 'e': case 'E': | |
| 2613 case 'g': case 'G': | |
| 2614 retval | |
| 2615 += do_printf_conv (os, fmt, nsa, sa_1, sa_2, | |
| 4468 | 2616 val, who); |
| 4303 | 2617 break; |
| 2618 | |
| 2619 default: | |
| 4468 | 2620 error ("%s: invalid format specifier", |
| 2621 who.c_str ()); | |
| 4303 | 2622 return -1; |
| 2623 break; | |
| 2624 } | |
| 3640 | 2625 } |
| 2117 | 2626 } |
| 2627 else | |
| 3620 | 2628 break; |
| 2117 | 2629 } |
| 2630 | |
| 3620 | 2631 if (! os) |
| 2117 | 2632 { |
| 4468 | 2633 error ("%s: write error", who.c_str ()); |
| 2117 | 2634 break; |
| 2635 } | |
| 2636 } | |
| 2637 else | |
| 2638 { | |
| 4468 | 2639 ::error ("%s: internal error handling format", who.c_str ()); |
| 2117 | 2640 retval = -1; |
| 2641 break; | |
| 2642 } | |
| 2643 | |
| 3640 | 2644 elt = fmt_list.next (nconv > 0 && ! val_cache.exhausted ()); |
| 2645 | |
| 2646 if (! elt || (val_cache.exhausted () && elt->args > 0)) | |
| 2647 break; | |
| 2648 } | |
| 2117 | 2649 } |
| 3640 | 2650 else |
| 4468 | 2651 invalid_operation (who, "writing"); |
| 2117 | 2652 |
| 2653 return retval; | |
| 2654 } | |
| 2655 | |
| 2656 int | |
| 3640 | 2657 octave_base_stream::printf (const std::string& fmt, |
| 4468 | 2658 const octave_value_list& args, |
| 2659 const std::string& who) | |
| 2117 | 2660 { |
| 3640 | 2661 int retval = 0; |
| 2662 | |
| 2663 printf_format_list fmt_list (fmt); | |
| 2664 | |
| 2665 if (fmt_list.num_conversions () == -1) | |
| 4468 | 2666 ::error ("%s: invalid format specified", who.c_str ()); |
| 2117 | 2667 else |
| 4468 | 2668 retval = do_printf (fmt_list, args, who); |
| 2117 | 2669 |
| 2670 return retval; | |
| 2671 } | |
| 2672 | |
| 2673 int | |
| 4468 | 2674 octave_base_stream::puts (const std::string& s, const std::string& who) |
| 2117 | 2675 { |
| 2676 int retval = -1; | |
| 2677 | |
| 3523 | 2678 std::ostream *osp = output_stream (); |
| 2117 | 2679 |
| 2680 if (osp) | |
| 2681 { | |
| 3523 | 2682 std::ostream& os = *osp; |
| 2117 | 2683 |
| 2684 os << s; | |
| 2685 | |
| 2686 if (os) | |
| 2687 { | |
| 5775 | 2688 // FIXME -- why does this seem to be necessary? |
| 2117 | 2689 // Without it, output from a loop like |
| 2690 // | |
| 2691 // for i = 1:100, fputs (stdout, "foo\n"); endfor | |
| 2692 // | |
| 2693 // doesn't seem to go to the pager immediately. | |
| 2694 | |
| 2695 os.flush (); | |
| 2696 | |
| 2697 if (os) | |
| 2698 retval = 0; | |
| 2699 else | |
| 4468 | 2700 error ("%s: write error", who.c_str ()); |
| 2117 | 2701 } |
| 2702 else | |
| 4468 | 2703 error ("%s: write error", who.c_str ()); |
| 2117 | 2704 } |
| 2705 else | |
| 4468 | 2706 invalid_operation (who, "writing"); |
| 2117 | 2707 |
| 2708 return retval; | |
| 2709 } | |
| 2710 | |
| 2711 // Return current error message for this stream. | |
| 2712 | |
| 3536 | 2713 std::string |
| 2435 | 2714 octave_base_stream::error (bool clear_err, int& err_num) |
| 2117 | 2715 { |
| 2435 | 2716 err_num = fail ? -1 : 0; |
| 2117 | 2717 |
| 3523 | 2718 std::string tmp = errmsg; |
| 2117 | 2719 |
| 2720 if (clear_err) | |
| 2721 clear (); | |
| 2722 | |
| 2723 return tmp; | |
| 2724 } | |
| 2725 | |
| 2726 void | |
| 4468 | 2727 octave_base_stream::invalid_operation (const std::string& who, const char *rw) |
| 2117 | 2728 { |
| 4468 | 2729 // Note that this is not ::error () ! |
| 2730 | |
| 6297 | 2731 error (who, std::string ("stream not open for ") + rw); |
| 2117 | 2732 } |
| 2733 | |
| 3552 | 2734 octave_stream::octave_stream (octave_base_stream *bs) |
| 3340 | 2735 : rep (bs) |
| 2736 { | |
| 2737 if (rep) | |
| 2738 rep->count = 1; | |
| 2739 } | |
| 2740 | |
| 2741 octave_stream::~octave_stream (void) | |
| 2742 { | |
| 2743 if (rep && --rep->count == 0) | |
| 2744 delete rep; | |
| 2745 } | |
| 2746 | |
| 2747 octave_stream::octave_stream (const octave_stream& s) | |
| 2748 : rep (s.rep) | |
| 2749 { | |
| 2750 if (rep) | |
| 2751 rep->count++; | |
| 2752 } | |
| 2753 | |
| 2754 octave_stream& | |
| 2755 octave_stream::operator = (const octave_stream& s) | |
| 2756 { | |
| 2757 if (rep != s.rep) | |
| 2758 { | |
| 2759 if (rep && --rep->count == 0) | |
| 2760 delete rep; | |
| 2761 | |
| 2762 rep = s.rep; | |
| 2763 | |
| 2764 if (rep) | |
| 2765 rep->count++; | |
| 2766 } | |
| 2767 | |
| 2768 return *this; | |
| 2769 } | |
| 2770 | |
| 2117 | 2771 int |
| 2772 octave_stream::flush (void) | |
| 2773 { | |
| 2774 int retval = -1; | |
| 2775 | |
| 5659 | 2776 if (stream_ok ()) |
| 2117 | 2777 retval = rep->flush (); |
| 2778 | |
| 2779 return retval; | |
| 2780 } | |
| 2781 | |
| 3536 | 2782 std::string |
| 5275 | 2783 octave_stream::getl (octave_idx_type max_len, bool& err, const std::string& who) |
| 2117 | 2784 { |
| 3523 | 2785 std::string retval; |
| 2117 | 2786 |
| 5659 | 2787 if (stream_ok ()) |
| 4468 | 2788 retval = rep->getl (max_len, err, who); |
| 2117 | 2789 |
| 2790 return retval; | |
| 2791 } | |
| 2792 | |
| 3536 | 2793 std::string |
| 4468 | 2794 octave_stream::getl (const octave_value& tc_max_len, bool& err, |
| 2795 const std::string& who) | |
| 2117 | 2796 { |
| 3523 | 2797 std::string retval; |
| 2117 | 2798 |
| 2799 err = false; | |
| 2800 | |
| 2801 int conv_err = 0; | |
| 2802 | |
| 6345 | 2803 int max_len = -1; |
| 2804 | |
| 2805 if (tc_max_len.is_defined ()) | |
| 2117 | 2806 { |
| 6345 | 2807 max_len = convert_to_valid_int (tc_max_len, conv_err); |
| 2808 | |
| 2809 if (conv_err || max_len < 0) | |
| 2810 { | |
| 2811 err = true; | |
| 2812 ::error ("%s: invalid maximum length specified", who.c_str ()); | |
| 2813 } | |
| 2117 | 2814 } |
| 6345 | 2815 |
| 2816 if (! error_state) | |
| 4468 | 2817 retval = getl (max_len, err, who); |
| 2117 | 2818 |
| 2819 return retval; | |
| 2820 } | |
| 2821 | |
| 3536 | 2822 std::string |
| 5275 | 2823 octave_stream::gets (octave_idx_type max_len, bool& err, const std::string& who) |
| 2117 | 2824 { |
| 3523 | 2825 std::string retval; |
| 2117 | 2826 |
| 5659 | 2827 if (stream_ok ()) |
| 4468 | 2828 retval = rep->gets (max_len, err, who); |
| 2117 | 2829 |
| 2830 return retval; | |
| 2831 } | |
| 2832 | |
| 3536 | 2833 std::string |
| 4468 | 2834 octave_stream::gets (const octave_value& tc_max_len, bool& err, |
| 2835 const std::string& who) | |
| 2117 | 2836 { |
| 3523 | 2837 std::string retval; |
| 2117 | 2838 |
| 2839 err = false; | |
| 2840 | |
| 2841 int conv_err = 0; | |
| 2842 | |
| 6345 | 2843 int max_len = -1; |
| 2844 | |
| 2845 if (tc_max_len.is_defined ()) | |
| 2117 | 2846 { |
| 6345 | 2847 max_len = convert_to_valid_int (tc_max_len, conv_err); |
| 2848 | |
| 2849 if (conv_err || max_len < 0) | |
| 2850 { | |
| 2851 err = true; | |
| 2852 ::error ("%s: invalid maximum length specified", who.c_str ()); | |
| 2853 } | |
| 2117 | 2854 } |
| 6345 | 2855 |
| 2856 if (! error_state) | |
| 4468 | 2857 retval = gets (max_len, err, who); |
| 2117 | 2858 |
| 2859 return retval; | |
| 2860 } | |
| 2861 | |
| 2862 int | |
| 4797 | 2863 octave_stream::seek (long offset, int origin) |
| 2117 | 2864 { |
| 5065 | 2865 int status = -1; |
| 2117 | 2866 |
| 5659 | 2867 if (stream_ok ()) |
| 4889 | 2868 { |
| 2869 clearerr (); | |
| 2870 | |
| 5065 | 2871 long orig_pos = rep->tell (); |
| 2872 | |
| 2873 status = rep->seek (offset, origin); | |
| 2874 | |
| 2875 if (status == 0) | |
| 2876 { | |
| 2877 long save_pos = rep->tell (); | |
| 2878 | |
| 2879 rep->seek (0, SEEK_END); | |
| 2880 | |
| 2881 long pos_eof = rep->tell (); | |
| 2882 | |
| 2883 // I don't think save_pos can be less than zero, but we'll | |
| 2884 // check anyway... | |
| 2885 | |
| 2886 if (save_pos > pos_eof || save_pos < 0) | |
| 2887 { | |
| 2888 // Seek outside bounds of file. Failure should leave | |
| 2889 // position unchanged. | |
| 2890 | |
| 2891 rep->seek (orig_pos, SEEK_SET); | |
| 2892 | |
| 2893 status = -1; | |
| 2894 } | |
| 2895 else | |
| 2896 { | |
| 2897 // Is it possible for this to fail? We are just | |
| 2898 // returning to a position after the first successful | |
| 2899 // seek. | |
| 2900 | |
| 2901 rep->seek (save_pos, SEEK_SET); | |
| 2902 } | |
| 2903 } | |
| 4889 | 2904 } |
| 2117 | 2905 |
| 5065 | 2906 return status; |
| 2117 | 2907 } |
| 2908 | |
| 2909 int | |
| 2910 octave_stream::seek (const octave_value& tc_offset, | |
| 2911 const octave_value& tc_origin) | |
| 2912 { | |
| 2913 int retval = -1; | |
| 2914 | |
| 4797 | 2915 long xoffset = tc_offset.long_value (true); |
| 4645 | 2916 |
| 2917 if (! error_state) | |
| 2117 | 2918 { |
| 4645 | 2919 int conv_err = 0; |
| 2920 | |
| 4797 | 2921 int origin = SEEK_SET; |
| 2117 | 2922 |
| 2341 | 2923 if (tc_origin.is_string ()) |
| 2117 | 2924 { |
| 3523 | 2925 std::string xorigin = tc_origin.string_value (); |
| 2341 | 2926 |
| 2927 if (xorigin == "bof") | |
| 4797 | 2928 origin = SEEK_SET; |
| 2341 | 2929 else if (xorigin == "cof") |
| 4797 | 2930 origin = SEEK_CUR; |
| 2341 | 2931 else if (xorigin == "eof") |
| 4797 | 2932 origin = SEEK_END; |
| 2117 | 2933 else |
| 2934 conv_err = -1; | |
| 2935 } | |
| 2341 | 2936 else |
| 2937 { | |
| 2938 int xorigin = convert_to_valid_int (tc_origin, conv_err); | |
| 2939 | |
| 2940 if (! conv_err) | |
| 2941 { | |
| 2942 if (xorigin == -1) | |
| 4797 | 2943 origin = SEEK_SET; |
| 2341 | 2944 else if (xorigin == 0) |
| 4797 | 2945 origin = SEEK_CUR; |
| 2341 | 2946 else if (xorigin == 1) |
| 4797 | 2947 origin = SEEK_END; |
| 2341 | 2948 else |
| 2949 conv_err = -1; | |
| 2950 } | |
| 2951 } | |
| 2117 | 2952 |
| 2953 if (! conv_err) | |
| 5065 | 2954 { |
| 2955 retval = seek (xoffset, origin); | |
| 2956 | |
| 2957 if (retval != 0) | |
| 2958 error ("fseek: failed to seek to requested position"); | |
| 2959 } | |
| 2117 | 2960 else |
| 2961 error ("fseek: invalid value for origin"); | |
| 2962 } | |
| 2963 else | |
| 2964 error ("fseek: invalid value for offset"); | |
| 2965 | |
| 2966 return retval; | |
| 2967 } | |
| 2968 | |
| 4797 | 2969 long |
| 2970 octave_stream::tell (void) | |
| 2117 | 2971 { |
| 4797 | 2972 long retval = -1; |
| 2117 | 2973 |
| 5659 | 2974 if (stream_ok ()) |
| 2117 | 2975 retval = rep->tell (); |
| 2976 | |
| 2977 return retval; | |
| 2978 } | |
| 2979 | |
| 2980 int | |
| 2981 octave_stream::rewind (void) | |
| 2982 { | |
| 6296 | 2983 return seek (0, SEEK_SET); |
| 2117 | 2984 } |
| 2985 | |
| 3340 | 2986 bool |
| 2987 octave_stream::is_open (void) const | |
| 2988 { | |
| 2989 bool retval = false; | |
| 2990 | |
| 5659 | 2991 if (stream_ok ()) |
| 3340 | 2992 retval = rep->is_open (); |
| 2993 | |
| 2994 return retval; | |
| 2995 } | |
| 2996 | |
| 2997 void | |
| 2998 octave_stream::close (void) | |
| 2999 { | |
| 5659 | 3000 if (stream_ok ()) |
| 3340 | 3001 rep->close (); |
| 3002 } | |
| 3003 | |
| 4944 | 3004 template <class RET_T, class READ_T> |
| 2117 | 3005 octave_value |
| 5275 | 3006 do_read (octave_stream& strm, octave_idx_type nr, octave_idx_type nc, octave_idx_type block_size, |
| 3007 octave_idx_type skip, bool do_float_fmt_conv, | |
| 3008 oct_mach_info::float_format from_flt_fmt, octave_idx_type& count) | |
| 2117 | 3009 { |
| 3010 octave_value retval; | |
| 3011 | |
| 4944 | 3012 RET_T nda; |
| 3013 | |
| 3014 count = 0; | |
| 3015 | |
| 3016 typename octave_array_type_traits<RET_T>::element_type elt_zero | |
| 3017 = typename octave_array_type_traits<RET_T>::element_type (); | |
| 3018 | |
| 3019 typename octave_array_type_traits<RET_T>::element_type *dat = 0; | |
| 3020 | |
| 5275 | 3021 octave_idx_type max_size = 0; |
| 3022 | |
| 3023 octave_idx_type final_nr = 0; | |
| 3024 octave_idx_type final_nc = 1; | |
| 4944 | 3025 |
| 3026 if (nr > 0) | |
| 3027 { | |
| 3028 if (nc > 0) | |
| 3029 { | |
| 3030 nda.resize (dim_vector (nr, nc), elt_zero); | |
| 3031 dat = nda.fortran_vec (); | |
| 3032 max_size = nr * nc; | |
| 3033 } | |
| 3034 else | |
| 3035 { | |
| 3036 nda.resize (dim_vector (nr, 32), elt_zero); | |
| 3037 dat = nda.fortran_vec (); | |
| 3038 max_size = nr * 32; | |
| 3039 } | |
| 3040 } | |
| 3041 else | |
| 3042 { | |
| 3043 nda.resize (dim_vector (32, 1), elt_zero); | |
| 3044 dat = nda.fortran_vec (); | |
| 3045 max_size = 32; | |
| 3046 } | |
| 3047 | |
| 5775 | 3048 // FIXME -- byte order for Cray? |
| 4944 | 3049 |
| 3050 bool swap = false; | |
| 3051 | |
| 3052 if (oct_mach_info::words_big_endian ()) | |
| 3053 swap = (from_flt_fmt == oct_mach_info::flt_fmt_ieee_little_endian | |
| 3054 || from_flt_fmt == oct_mach_info::flt_fmt_vax_g | |
| 3055 || from_flt_fmt == oct_mach_info::flt_fmt_vax_g); | |
| 3056 else | |
| 3057 swap = (from_flt_fmt == oct_mach_info::flt_fmt_ieee_big_endian); | |
| 3058 | |
| 3059 union | |
| 3060 { | |
| 3061 char buf[sizeof (typename octave_type_traits<READ_T>::val_type)]; | |
| 3062 typename octave_type_traits<READ_T>::val_type val; | |
| 3063 } u; | |
| 3064 | |
| 3065 std::istream *isp = strm.input_stream (); | |
| 3066 | |
| 3067 if (isp) | |
| 3068 { | |
| 3069 std::istream& is = *isp; | |
| 3070 | |
| 5275 | 3071 octave_idx_type elts_read = 0; |
| 4944 | 3072 |
| 3073 for (;;) | |
| 3074 { | |
| 5775 | 3075 // FIXME -- maybe there should be a special case for |
| 4944 | 3076 // skip == 0. |
| 3077 | |
| 3078 if (is) | |
| 3079 { | |
| 3080 if (nr > 0 && nc > 0 && count == max_size) | |
| 3081 { | |
| 3082 final_nr = nr; | |
| 3083 final_nc = nc; | |
| 3084 | |
| 3085 break; | |
| 3086 } | |
| 3087 | |
| 3088 is.read (u.buf, sizeof (typename octave_type_traits<READ_T>::val_type)); | |
| 3089 | |
| 3090 // We only swap bytes for integer types. For float | |
| 3091 // types, the format conversion will also handle byte | |
| 3092 // swapping. | |
| 3093 | |
| 3094 if (swap) | |
| 3095 swap_bytes<sizeof (typename octave_type_traits<READ_T>::val_type)> (u.buf); | |
| 3096 else if (do_float_fmt_conv) | |
| 3097 do_float_format_conversion | |
| 3098 (u.buf, | |
| 3099 sizeof (typename octave_type_traits<READ_T>::val_type), | |
| 3100 1, from_flt_fmt, oct_mach_info::float_format ()); | |
| 3101 | |
| 3102 typename octave_array_type_traits<RET_T>::element_type tmp | |
| 3103 = static_cast <typename octave_array_type_traits<RET_T>::element_type> (u.val); | |
| 3104 | |
| 5030 | 3105 if (is) |
| 4944 | 3106 { |
| 5030 | 3107 if (count == max_size) |
| 4944 | 3108 { |
| 5030 | 3109 max_size *= 2; |
| 3110 | |
| 3111 if (nr > 0) | |
| 3112 nda.resize (dim_vector (nr, max_size / nr), | |
| 3113 elt_zero); | |
| 3114 else | |
| 3115 nda.resize (dim_vector (max_size, 1), elt_zero); | |
| 3116 | |
| 3117 dat = nda.fortran_vec (); | |
| 4944 | 3118 } |
| 3119 | |
| 5030 | 3120 dat[count++] = tmp; |
| 3121 | |
| 3122 elts_read++; | |
| 3123 } | |
| 3124 | |
|
11665
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diff
changeset
|
3125 int seek_status = 0; |
|
31443b3c5d3b
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parents:
11643
diff
changeset
|
3126 |
| 5030 | 3127 if (skip != 0 && elts_read == block_size) |
| 3128 { | |
|
11665
31443b3c5d3b
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John W. Eaton <jwe@octave.org>
parents:
11643
diff
changeset
|
3129 seek_status = strm.seek (skip, SEEK_CUR); |
| 5030 | 3130 elts_read = 0; |
| 3131 } | |
| 3132 | |
|
11665
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John W. Eaton <jwe@octave.org>
parents:
11643
diff
changeset
|
3133 if (is.eof () || seek_status < 0) |
| 5030 | 3134 { |
| 3135 if (nr > 0) | |
| 4944 | 3136 { |
| 5030 | 3137 if (count > nr) |
| 4944 | 3138 { |
| 5030 | 3139 final_nr = nr; |
| 3140 final_nc = (count - 1) / nr + 1; | |
| 4944 | 3141 } |
| 3142 else | |
| 3143 { | |
| 3144 final_nr = count; | |
| 3145 final_nc = 1; | |
| 3146 } | |
| 3147 } | |
| 5030 | 3148 else |
| 3149 { | |
| 3150 final_nr = count; | |
| 3151 final_nc = 1; | |
| 3152 } | |
| 3153 | |
| 4944 | 3154 break; |
| 3155 } | |
| 3156 } | |
| 5030 | 3157 else if (is.eof ()) |
| 3158 break; | |
| 4944 | 3159 } |
| 3160 } | |
| 3161 | |
| 5030 | 3162 nda.resize (dim_vector (final_nr, final_nc), elt_zero); |
| 3163 | |
| 3164 retval = nda; | |
| 4944 | 3165 |
| 3166 return retval; | |
| 3167 } | |
| 3168 | |
| 3169 #define DO_READ_VAL_TEMPLATE(RET_T, READ_T) \ | |
| 3170 template octave_value \ | |
| 5275 | 3171 do_read<RET_T, READ_T> (octave_stream&, octave_idx_type, octave_idx_type, octave_idx_type, octave_idx_type, bool, \ |
| 3172 oct_mach_info::float_format, octave_idx_type&) | |
| 4944 | 3173 |
| 5775 | 3174 // FIXME -- should we only have float if it is a different |
| 4944 | 3175 // size from double? |
| 3176 | |
| 3177 #define INSTANTIATE_DO_READ(VAL_T) \ | |
| 3178 DO_READ_VAL_TEMPLATE (VAL_T, octave_int8); \ | |
| 3179 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint8); \ | |
| 3180 DO_READ_VAL_TEMPLATE (VAL_T, octave_int16); \ | |
| 3181 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint16); \ | |
| 3182 DO_READ_VAL_TEMPLATE (VAL_T, octave_int32); \ | |
| 3183 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint32); \ | |
| 3184 DO_READ_VAL_TEMPLATE (VAL_T, octave_int64); \ | |
| 3185 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint64); \ | |
| 3186 DO_READ_VAL_TEMPLATE (VAL_T, float); \ | |
| 3187 DO_READ_VAL_TEMPLATE (VAL_T, double); \ | |
| 3188 DO_READ_VAL_TEMPLATE (VAL_T, char); \ | |
| 3189 DO_READ_VAL_TEMPLATE (VAL_T, signed char); \ | |
| 3190 DO_READ_VAL_TEMPLATE (VAL_T, unsigned char) | |
| 3191 | |
| 4970 | 3192 INSTANTIATE_DO_READ (int8NDArray); |
| 3193 INSTANTIATE_DO_READ (uint8NDArray); | |
| 3194 INSTANTIATE_DO_READ (int16NDArray); | |
| 3195 INSTANTIATE_DO_READ (uint16NDArray); | |
| 3196 INSTANTIATE_DO_READ (int32NDArray); | |
| 3197 INSTANTIATE_DO_READ (uint32NDArray); | |
| 3198 INSTANTIATE_DO_READ (int64NDArray); | |
| 3199 INSTANTIATE_DO_READ (uint64NDArray); | |
| 3200 // INSTANTIATE_DO_READ (floatNDArray); | |
| 3201 INSTANTIATE_DO_READ (NDArray); | |
| 3202 INSTANTIATE_DO_READ (charNDArray); | |
| 5780 | 3203 INSTANTIATE_DO_READ (boolNDArray); |
| 4944 | 3204 |
| 5275 | 3205 typedef octave_value (*read_fptr) (octave_stream&, octave_idx_type, octave_idx_type, octave_idx_type, octave_idx_type, bool, |
| 3206 oct_mach_info::float_format ffmt, octave_idx_type&); | |
| 4944 | 3207 |
| 6708 | 3208 INSTANTIATE_ARRAY (read_fptr,); |
| 4944 | 3209 template class Array2<read_fptr>; |
| 3210 | |
| 3211 #define FILL_TABLE_ROW(R, VAL_T) \ | |
| 3212 read_fptr_table(R,oct_data_conv::dt_int8) = do_read<VAL_T, octave_int8>; \ | |
| 3213 read_fptr_table(R,oct_data_conv::dt_uint8) = do_read<VAL_T, octave_uint8>; \ | |
| 3214 read_fptr_table(R,oct_data_conv::dt_int16) = do_read<VAL_T, octave_int16>; \ | |
| 3215 read_fptr_table(R,oct_data_conv::dt_uint16) = do_read<VAL_T, octave_uint16>; \ | |
| 3216 read_fptr_table(R,oct_data_conv::dt_int32) = do_read<VAL_T, octave_int32>; \ | |
| 3217 read_fptr_table(R,oct_data_conv::dt_uint32) = do_read<VAL_T, octave_uint32>; \ | |
| 3218 read_fptr_table(R,oct_data_conv::dt_int64) = do_read<VAL_T, octave_int64>; \ | |
| 3219 read_fptr_table(R,oct_data_conv::dt_uint64) = do_read<VAL_T, octave_uint64>; \ | |
| 3220 read_fptr_table(R,oct_data_conv::dt_single) = do_read<VAL_T, float>; \ | |
| 3221 read_fptr_table(R,oct_data_conv::dt_double) = do_read<VAL_T, double>; \ | |
| 3222 read_fptr_table(R,oct_data_conv::dt_char) = do_read<VAL_T, char>; \ | |
| 3223 read_fptr_table(R,oct_data_conv::dt_schar) = do_read<VAL_T, signed char>; \ | |
| 4970 | 3224 read_fptr_table(R,oct_data_conv::dt_uchar) = do_read<VAL_T, unsigned char>; \ |
| 3225 read_fptr_table(R,oct_data_conv::dt_logical) = do_read<VAL_T, unsigned char> | |
| 4944 | 3226 |
| 3227 octave_value | |
| 5275 | 3228 octave_stream::read (const Array<double>& size, octave_idx_type block_size, |
| 4944 | 3229 oct_data_conv::data_type input_type, |
| 3230 oct_data_conv::data_type output_type, | |
| 5275 | 3231 octave_idx_type skip, oct_mach_info::float_format ffmt, |
| 3232 octave_idx_type& char_count) | |
| 4944 | 3233 { |
| 3234 static bool initialized = false; | |
| 3235 | |
| 3236 // Table function pointers for return types x read types. | |
| 3237 | |
| 4970 | 3238 static Array2<read_fptr> read_fptr_table (oct_data_conv::dt_unknown, 14, 0); |
| 4944 | 3239 |
| 3240 if (! initialized) | |
| 3241 { | |
| 3242 FILL_TABLE_ROW (oct_data_conv::dt_int8, int8NDArray); | |
| 3243 FILL_TABLE_ROW (oct_data_conv::dt_uint8, uint8NDArray); | |
| 3244 FILL_TABLE_ROW (oct_data_conv::dt_int16, int16NDArray); | |
| 3245 FILL_TABLE_ROW (oct_data_conv::dt_uint16, uint16NDArray); | |
| 3246 FILL_TABLE_ROW (oct_data_conv::dt_int32, int32NDArray); | |
| 3247 FILL_TABLE_ROW (oct_data_conv::dt_uint32, uint32NDArray); | |
| 3248 FILL_TABLE_ROW (oct_data_conv::dt_int64, int64NDArray); | |
| 3249 FILL_TABLE_ROW (oct_data_conv::dt_uint64, uint64NDArray); | |
| 3250 FILL_TABLE_ROW (oct_data_conv::dt_double, NDArray); | |
| 3251 FILL_TABLE_ROW (oct_data_conv::dt_char, charNDArray); | |
| 3252 FILL_TABLE_ROW (oct_data_conv::dt_schar, charNDArray); | |
| 3253 FILL_TABLE_ROW (oct_data_conv::dt_uchar, charNDArray); | |
| 4970 | 3254 FILL_TABLE_ROW (oct_data_conv::dt_logical, boolNDArray); |
| 4944 | 3255 |
| 3256 initialized = true; | |
| 3257 } | |
| 3258 | |
| 3259 octave_value retval; | |
| 3260 | |
| 5659 | 3261 if (stream_ok ()) |
| 4944 | 3262 { |
| 5775 | 3263 // FIXME -- we may eventually want to make this extensible. |
| 3264 | |
| 3265 // FIXME -- we need a better way to ensure that this | |
| 4944 | 3266 // numbering stays consistent with the order of the elements in the |
| 3267 // data_type enum in the oct_data_conv class. | |
| 3268 | |
| 3269 char_count = 0; | |
| 3270 | |
| 5275 | 3271 octave_idx_type nr = -1; |
| 3272 octave_idx_type nc = -1; | |
| 4944 | 3273 |
| 3274 bool ignore; | |
| 3275 | |
| 3276 get_size (size, nr, nc, ignore, "fread"); | |
| 3277 | |
| 3278 if (! error_state) | |
| 3279 { | |
| 3280 if (nr == 0 || nc == 0) | |
| 3281 retval = Matrix (nr, nc); | |
| 3282 else | |
| 3283 { | |
| 3284 if (ffmt == oct_mach_info::flt_fmt_unknown) | |
| 3285 ffmt = float_format (); | |
| 3286 | |
| 3287 read_fptr fcn = read_fptr_table (output_type, input_type); | |
| 3288 | |
| 3289 bool do_float_fmt_conv = ((input_type == oct_data_conv::dt_double | |
| 3290 || input_type == oct_data_conv::dt_single) | |
| 3291 && ffmt != float_format ()); | |
| 3292 | |
| 3293 if (fcn) | |
| 3294 { | |
| 3295 retval = (*fcn) (*this, nr, nc, block_size, skip, | |
| 3296 do_float_fmt_conv, ffmt, char_count); | |
| 3297 | |
| 5775 | 3298 // FIXME -- kluge! |
| 4944 | 3299 |
| 3300 if (! error_state | |
| 3301 && (output_type == oct_data_conv::dt_char | |
| 3302 || output_type == oct_data_conv::dt_schar | |
| 3303 || output_type == oct_data_conv::dt_uchar)) | |
| 3304 retval = octave_value (retval.char_matrix_value (), true); | |
| 3305 } | |
| 3306 else | |
| 3307 error ("fread: unable to read and convert requested types"); | |
| 3308 } | |
| 3309 } | |
| 3310 else | |
| 3311 invalid_operation ("fread", "reading"); | |
| 3312 } | |
| 2117 | 3313 |
| 3314 return retval; | |
| 3315 } | |
| 3316 | |
| 5275 | 3317 octave_idx_type |
| 3318 octave_stream::write (const octave_value& data, octave_idx_type block_size, | |
| 3319 oct_data_conv::data_type output_type, octave_idx_type skip, | |
| 2317 | 3320 oct_mach_info::float_format flt_fmt) |
| 2117 | 3321 { |
| 5275 | 3322 octave_idx_type retval = -1; |
| 2117 | 3323 |
| 5659 | 3324 if (stream_ok ()) |
| 4944 | 3325 { |
| 3326 if (! error_state) | |
| 3327 { | |
| 3328 if (flt_fmt == oct_mach_info::flt_fmt_unknown) | |
| 3329 flt_fmt = float_format (); | |
| 3330 | |
| 5275 | 3331 octave_idx_type status = data.write (*this, block_size, output_type, |
| 4944 | 3332 skip, flt_fmt); |
| 3333 | |
| 3334 if (status < 0) | |
| 3335 error ("fwrite: write error"); | |
| 3336 else | |
| 3337 retval = status; | |
| 3338 } | |
| 3339 else | |
| 3340 invalid_operation ("fwrite", "writing"); | |
| 3341 } | |
| 2117 | 3342 |
| 3343 return retval; | |
| 3344 } | |
| 3345 | |
| 4944 | 3346 template <class T> |
| 3347 void | |
| 3348 write_int (std::ostream& os, bool swap, const T& val) | |
| 3349 { | |
| 3350 typename octave_type_traits<T>::val_type tmp = val.value (); | |
| 3351 | |
| 3352 if (swap) | |
| 3353 swap_bytes<sizeof (typename octave_type_traits<T>::val_type)> (&tmp); | |
| 3354 | |
| 3355 os.write (reinterpret_cast<const char *> (&tmp), | |
| 3356 sizeof (typename octave_type_traits<T>::val_type)); | |
| 3357 } | |
| 3358 | |
| 3359 template void write_int (std::ostream&, bool, const octave_int8&); | |
| 3360 template void write_int (std::ostream&, bool, const octave_uint8&); | |
| 3361 template void write_int (std::ostream&, bool, const octave_int16&); | |
| 3362 template void write_int (std::ostream&, bool, const octave_uint16&); | |
| 3363 template void write_int (std::ostream&, bool, const octave_int32&); | |
| 3364 template void write_int (std::ostream&, bool, const octave_uint32&); | |
| 3365 template void write_int (std::ostream&, bool, const octave_int64&); | |
| 3366 template void write_int (std::ostream&, bool, const octave_uint64&); | |
| 3367 | |
| 3368 template <class T> | |
| 3369 static inline bool | |
| 3370 do_write (std::ostream& os, const T& val, oct_data_conv::data_type output_type, | |
| 3371 oct_mach_info::float_format flt_fmt, bool swap, | |
| 3372 bool do_float_conversion) | |
| 3373 { | |
| 3374 bool retval = true; | |
| 3375 | |
| 3376 // For compatibility, Octave converts to the output type, then | |
| 3377 // writes. This means that truncation happens on the conversion. | |
| 3378 // For example, the following program prints 0: | |
| 3379 // | |
| 3380 // x = int8 (-1) | |
| 3381 // f = fopen ("foo.dat", "w"); | |
| 3382 // fwrite (f, x, "unsigned char"); | |
| 3383 // fclose (f); | |
| 3384 // f = fopen ("foo.dat", "r"); | |
| 3385 // y = fread (f, 1, "unsigned char"); | |
| 3386 // printf ("%d\n", y); | |
| 3387 | |
| 3388 switch (output_type) | |
| 3389 { | |
| 3390 case oct_data_conv::dt_char: | |
| 3391 case oct_data_conv::dt_schar: | |
| 3392 case oct_data_conv::dt_int8: | |
| 3393 write_int (os, swap, octave_int8 (val)); | |
| 3394 break; | |
| 3395 | |
| 3396 case oct_data_conv::dt_uchar: | |
| 3397 case oct_data_conv::dt_uint8: | |
| 3398 write_int (os, swap, octave_uint8 (val)); | |
| 3399 break; | |
| 3400 | |
| 3401 case oct_data_conv::dt_int16: | |
| 3402 write_int (os, swap, octave_int16 (val)); | |
| 3403 break; | |
| 3404 | |
| 3405 case oct_data_conv::dt_uint16: | |
| 3406 write_int (os, swap, octave_uint16 (val)); | |
| 3407 break; | |
| 3408 | |
| 3409 case oct_data_conv::dt_int32: | |
| 3410 write_int (os, swap, octave_int32 (val)); | |
| 3411 break; | |
| 3412 | |
| 3413 case oct_data_conv::dt_uint32: | |
| 3414 write_int (os, swap, octave_uint32 (val)); | |
| 3415 break; | |
| 3416 | |
| 3417 case oct_data_conv::dt_int64: | |
| 3418 write_int (os, swap, octave_int64 (val)); | |
| 3419 break; | |
| 3420 | |
| 3421 case oct_data_conv::dt_uint64: | |
| 3422 write_int (os, swap, octave_uint64 (val)); | |
| 3423 break; | |
| 3424 | |
| 3425 case oct_data_conv::dt_single: | |
| 3426 { | |
| 3427 float f = static_cast<float> (val); | |
| 3428 | |
| 3429 if (do_float_conversion) | |
| 3430 do_float_format_conversion (&f, 1, flt_fmt); | |
| 3431 | |
| 3432 os.write (reinterpret_cast<const char *> (&f), sizeof (float)); | |
| 3433 } | |
| 3434 break; | |
| 3435 | |
| 3436 case oct_data_conv::dt_double: | |
| 3437 { | |
| 3438 double d = static_cast<double> (val); | |
| 3439 if (do_float_conversion) | |
| 3440 do_double_format_conversion (&d, 1, flt_fmt); | |
| 3441 | |
| 3442 os.write (reinterpret_cast<const char *> (&d), sizeof (double)); | |
| 3443 } | |
| 3444 break; | |
| 3445 | |
| 3446 default: | |
| 3447 retval = false; | |
| 3448 (*current_liboctave_error_handler) | |
| 3449 ("write: invalid type specification"); | |
| 3450 break; | |
| 3451 } | |
| 3452 | |
| 3453 return retval; | |
| 3454 } | |
| 3455 | |
| 5887 | 3456 template bool |
| 3457 do_write (std::ostream&, const octave_int8&, oct_data_conv::data_type, | |
| 3458 oct_mach_info::float_format, bool, bool); | |
| 3459 | |
| 3460 template bool | |
| 3461 do_write (std::ostream&, const octave_uint8&, oct_data_conv::data_type, | |
| 3462 oct_mach_info::float_format, bool, bool); | |
| 3463 | |
| 3464 template bool | |
| 3465 do_write (std::ostream&, const octave_int16&, oct_data_conv::data_type, | |
| 3466 oct_mach_info::float_format, bool, bool); | |
| 3467 | |
| 3468 template bool | |
| 3469 do_write (std::ostream&, const octave_uint16&, oct_data_conv::data_type, | |
| 3470 oct_mach_info::float_format, bool, bool); | |
| 3471 | |
| 3472 template bool | |
| 3473 do_write (std::ostream&, const octave_int32&, oct_data_conv::data_type, | |
| 3474 oct_mach_info::float_format, bool, bool); | |
| 3475 | |
| 3476 template bool | |
| 3477 do_write (std::ostream&, const octave_uint32&, oct_data_conv::data_type, | |
| 3478 oct_mach_info::float_format, bool, bool); | |
| 3479 | |
| 3480 template bool | |
| 3481 do_write (std::ostream&, const octave_int64&, oct_data_conv::data_type, | |
| 3482 oct_mach_info::float_format, bool, bool); | |
| 3483 | |
| 3484 template bool | |
| 3485 do_write (std::ostream&, const octave_uint64&, oct_data_conv::data_type, | |
| 3486 oct_mach_info::float_format, bool, bool); | |
| 3487 | |
| 4944 | 3488 template <class T> |
| 5275 | 3489 octave_idx_type |
| 3490 octave_stream::write (const Array<T>& data, octave_idx_type block_size, | |
| 4944 | 3491 oct_data_conv::data_type output_type, |
| 5275 | 3492 octave_idx_type skip, oct_mach_info::float_format flt_fmt) |
| 4944 | 3493 { |
| 5275 | 3494 octave_idx_type retval = -1; |
| 4944 | 3495 |
| 3496 bool status = true; | |
| 3497 | |
| 5275 | 3498 octave_idx_type count = 0; |
| 4944 | 3499 |
| 3500 const T *d = data.data (); | |
| 3501 | |
| 5275 | 3502 octave_idx_type n = data.length (); |
| 4944 | 3503 |
| 3504 oct_mach_info::float_format native_flt_fmt | |
| 3505 = oct_mach_info::float_format (); | |
| 3506 | |
| 3507 bool do_float_conversion = (flt_fmt != native_flt_fmt); | |
| 3508 | |
| 5775 | 3509 // FIXME -- byte order for Cray? |
| 4944 | 3510 |
| 3511 bool swap = false; | |
| 3512 | |
| 3513 if (oct_mach_info::words_big_endian ()) | |
| 3514 swap = (flt_fmt == oct_mach_info::flt_fmt_ieee_little_endian | |
| 3515 || flt_fmt == oct_mach_info::flt_fmt_vax_g | |
| 3516 || flt_fmt == oct_mach_info::flt_fmt_vax_g); | |
| 3517 else | |
| 3518 swap = (flt_fmt == oct_mach_info::flt_fmt_ieee_big_endian); | |
| 3519 | |
| 5275 | 3520 for (octave_idx_type i = 0; i < n; i++) |
| 4944 | 3521 { |
| 3522 std::ostream *osp = output_stream (); | |
| 3523 | |
| 3524 if (osp) | |
| 3525 { | |
| 3526 std::ostream& os = *osp; | |
| 3527 | |
| 5254 | 3528 // It seems that Matlab writes zeros instead of actually |
| 3529 // seeking. Hmm... | |
| 3530 | |
| 4944 | 3531 if (skip != 0 && (i % block_size) == 0) |
| 5254 | 3532 { |
| 5775 | 3533 // FIXME -- probably should try to write larger |
| 5254 | 3534 // blocks... |
| 3535 | |
| 3536 unsigned char zero = 0; | |
| 3537 for (int j = 0; j < skip; j++) | |
| 3538 os.write (reinterpret_cast<const char *> (&zero), 1); | |
| 3539 } | |
| 4944 | 3540 |
| 3541 if (os) | |
| 3542 { | |
| 3543 status = do_write (os, d[i], output_type, flt_fmt, swap, | |
| 3544 do_float_conversion); | |
| 3545 | |
| 3546 if (os && status) | |
| 3547 count++; | |
| 3548 else | |
| 3549 break; | |
| 3550 } | |
| 3551 else | |
| 3552 { | |
| 3553 status = false; | |
| 3554 break; | |
| 3555 } | |
| 3556 } | |
| 3557 else | |
| 3558 { | |
| 3559 status = false; | |
| 3560 break; | |
| 3561 } | |
| 3562 } | |
| 3563 | |
| 3564 if (status) | |
| 3565 retval = count; | |
| 3566 | |
| 3567 return retval; | |
| 3568 } | |
| 3569 | |
| 5275 | 3570 template octave_idx_type |
| 3571 octave_stream::write (const Array<char>&, octave_idx_type, | |
| 4944 | 3572 oct_data_conv::data_type, |
| 5275 | 3573 octave_idx_type, oct_mach_info::float_format); |
| 3574 | |
| 3575 template octave_idx_type | |
| 3576 octave_stream::write (const Array<bool>&, octave_idx_type, | |
| 4970 | 3577 oct_data_conv::data_type, |
| 5275 | 3578 octave_idx_type, oct_mach_info::float_format); |
| 3579 | |
| 3580 template octave_idx_type | |
| 3581 octave_stream::write (const Array<double>&, octave_idx_type, | |
| 4944 | 3582 oct_data_conv::data_type, |
| 5275 | 3583 octave_idx_type, oct_mach_info::float_format); |
| 3584 | |
| 3585 template octave_idx_type | |
| 3586 octave_stream::write (const Array<octave_int8>&, octave_idx_type, | |
| 4944 | 3587 oct_data_conv::data_type, |
| 5275 | 3588 octave_idx_type, oct_mach_info::float_format); |
| 3589 | |
| 3590 template octave_idx_type | |
| 3591 octave_stream::write (const Array<octave_uint8>&, octave_idx_type, | |
| 4944 | 3592 oct_data_conv::data_type, |
| 5275 | 3593 octave_idx_type, oct_mach_info::float_format); |
| 3594 | |
| 3595 template octave_idx_type | |
| 3596 octave_stream::write (const Array<octave_int16>&, octave_idx_type, | |
| 4944 | 3597 oct_data_conv::data_type, |
| 5275 | 3598 octave_idx_type, oct_mach_info::float_format); |
| 3599 | |
| 3600 template octave_idx_type | |
| 3601 octave_stream::write (const Array<octave_uint16>&, octave_idx_type, | |
| 4944 | 3602 oct_data_conv::data_type, |
| 5275 | 3603 octave_idx_type, oct_mach_info::float_format); |
| 3604 | |
| 3605 template octave_idx_type | |
| 3606 octave_stream::write (const Array<octave_int32>&, octave_idx_type, | |
| 4944 | 3607 oct_data_conv::data_type, |
| 5275 | 3608 octave_idx_type, oct_mach_info::float_format); |
| 3609 | |
| 3610 template octave_idx_type | |
| 3611 octave_stream::write (const Array<octave_uint32>&, octave_idx_type, | |
| 4944 | 3612 oct_data_conv::data_type, |
| 5275 | 3613 octave_idx_type, oct_mach_info::float_format); |
| 3614 | |
| 3615 template octave_idx_type | |
| 3616 octave_stream::write (const Array<octave_int64>&, octave_idx_type, | |
| 4944 | 3617 oct_data_conv::data_type, |
| 5275 | 3618 octave_idx_type, oct_mach_info::float_format); |
| 3619 | |
| 3620 template octave_idx_type | |
| 3621 octave_stream::write (const Array<octave_uint64>&, octave_idx_type, | |
| 4944 | 3622 oct_data_conv::data_type, |
| 5275 | 3623 octave_idx_type, oct_mach_info::float_format); |
| 4944 | 3624 |
| 2117 | 3625 octave_value |
| 3810 | 3626 octave_stream::scanf (const std::string& fmt, const Array<double>& size, |
| 5275 | 3627 octave_idx_type& count, const std::string& who) |
| 2117 | 3628 { |
| 3629 octave_value retval; | |
| 3630 | |
| 5659 | 3631 if (stream_ok ()) |
| 4468 | 3632 retval = rep->scanf (fmt, size, count, who); |
| 2117 | 3633 |
| 3634 return retval; | |
| 3635 } | |
| 3636 | |
| 5279 | 3637 octave_value |
| 3638 octave_stream::scanf (const octave_value& fmt, const Array<double>& size, | |
| 5299 | 3639 octave_idx_type& count, const std::string& who) |
| 5279 | 3640 { |
| 3641 octave_value retval = Matrix (); | |
| 3642 | |
| 3643 if (fmt.is_string ()) | |
| 3644 { | |
| 3645 std::string sfmt = fmt.string_value (); | |
| 3646 | |
| 3647 if (fmt.is_sq_string ()) | |
| 3648 sfmt = do_string_escapes (sfmt); | |
| 3649 | |
| 3650 retval = scanf (sfmt, size, count, who); | |
| 3651 } | |
| 3652 else | |
| 3653 { | |
| 3654 // Note that this is not ::error () ! | |
| 3655 | |
| 3656 error (who + ": format must be a string"); | |
| 3657 } | |
| 3658 | |
| 3659 return retval; | |
| 3660 } | |
| 3661 | |
| 2215 | 3662 octave_value_list |
| 4468 | 3663 octave_stream::oscanf (const std::string& fmt, const std::string& who) |
| 2215 | 3664 { |
| 3665 octave_value_list retval; | |
| 3666 | |
| 5659 | 3667 if (stream_ok ()) |
| 4468 | 3668 retval = rep->oscanf (fmt, who); |
| 2215 | 3669 |
| 3670 return retval; | |
| 3671 } | |
| 3672 | |
| 5279 | 3673 octave_value_list |
| 3674 octave_stream::oscanf (const octave_value& fmt, const std::string& who) | |
| 3675 { | |
| 3676 octave_value_list retval; | |
| 3677 | |
| 3678 if (fmt.is_string ()) | |
| 3679 { | |
| 3680 std::string sfmt = fmt.string_value (); | |
| 3681 | |
| 3682 if (fmt.is_sq_string ()) | |
| 3683 sfmt = do_string_escapes (sfmt); | |
| 3684 | |
| 3685 retval = oscanf (sfmt, who); | |
| 3686 } | |
| 3687 else | |
| 3688 { | |
| 3689 // Note that this is not ::error () ! | |
| 3690 | |
| 3691 error (who + ": format must be a string"); | |
| 3692 } | |
| 3693 | |
| 3694 return retval; | |
| 3695 } | |
| 3696 | |
| 2117 | 3697 int |
| 4468 | 3698 octave_stream::printf (const std::string& fmt, const octave_value_list& args, |
| 3699 const std::string& who) | |
| 2117 | 3700 { |
| 3701 int retval = -1; | |
| 3702 | |
| 5659 | 3703 if (stream_ok ()) |
| 4468 | 3704 retval = rep->printf (fmt, args, who); |
| 2117 | 3705 |
| 3706 return retval; | |
| 3707 } | |
| 3708 | |
| 3709 int | |
| 5279 | 3710 octave_stream::printf (const octave_value& fmt, const octave_value_list& args, |
| 3711 const std::string& who) | |
| 3712 { | |
| 3713 int retval = 0; | |
| 3714 | |
| 3715 if (fmt.is_string ()) | |
| 3716 { | |
| 3717 std::string sfmt = fmt.string_value (); | |
| 3718 | |
| 3719 if (fmt.is_sq_string ()) | |
| 3720 sfmt = do_string_escapes (sfmt); | |
| 3721 | |
| 3722 retval = printf (sfmt, args, who); | |
| 3723 } | |
| 3724 else | |
| 3725 { | |
| 3726 // Note that this is not ::error () ! | |
| 3727 | |
| 3728 error (who + ": format must be a string"); | |
| 3729 } | |
| 3730 | |
| 3731 return retval; | |
| 3732 } | |
| 3733 | |
| 3734 int | |
| 4468 | 3735 octave_stream::puts (const std::string& s, const std::string& who) |
| 2117 | 3736 { |
| 3737 int retval = -1; | |
| 3738 | |
| 5659 | 3739 if (stream_ok ()) |
| 4468 | 3740 retval = rep->puts (s, who); |
| 2117 | 3741 |
| 3742 return retval; | |
| 3743 } | |
| 3744 | |
| 5775 | 3745 // FIXME -- maybe this should work for string arrays too. |
| 2117 | 3746 |
| 3747 int | |
| 4468 | 3748 octave_stream::puts (const octave_value& tc_s, const std::string& who) |
| 2117 | 3749 { |
| 3750 int retval = -1; | |
| 3751 | |
| 3752 if (tc_s.is_string ()) | |
| 3753 { | |
| 3523 | 3754 std::string s = tc_s.string_value (); |
| 5279 | 3755 retval = puts (s, who); |
| 2117 | 3756 } |
| 3757 else | |
| 4468 | 3758 { |
| 3759 // Note that this is not ::error () ! | |
| 3760 | |
| 3761 error (who + ": argument must be a string"); | |
| 3762 } | |
| 2117 | 3763 |
| 3764 return retval; | |
| 3765 } | |
| 3766 | |
| 3767 bool | |
| 3768 octave_stream::eof (void) const | |
| 3769 { | |
| 3770 int retval = -1; | |
| 3771 | |
| 5659 | 3772 if (stream_ok ()) |
| 2117 | 3773 retval = rep->eof (); |
| 3774 | |
| 3775 return retval; | |
| 3776 } | |
| 3777 | |
| 3536 | 3778 std::string |
| 2435 | 3779 octave_stream::error (bool clear, int& err_num) |
| 2117 | 3780 { |
| 5649 | 3781 std::string retval = "invalid stream object"; |
| 3782 | |
| 5659 | 3783 if (stream_ok (false)) |
| 2435 | 3784 retval = rep->error (clear, err_num); |
| 2117 | 3785 |
| 3786 return retval; | |
| 3787 } | |
| 3788 | |
| 3536 | 3789 std::string |
| 3340 | 3790 octave_stream::name (void) const |
| 2117 | 3791 { |
| 3523 | 3792 std::string retval; |
| 2117 | 3793 |
| 5659 | 3794 if (stream_ok ()) |
| 2117 | 3795 retval = rep->name (); |
| 3796 | |
| 3797 return retval; | |
| 3798 } | |
| 3799 | |
| 3800 int | |
| 3340 | 3801 octave_stream::mode (void) const |
| 2117 | 3802 { |
| 3803 int retval = 0; | |
| 3804 | |
| 5659 | 3805 if (stream_ok ()) |
| 2117 | 3806 retval = rep->mode (); |
| 3807 | |
| 3808 return retval; | |
| 3809 } | |
| 3810 | |
| 2317 | 3811 oct_mach_info::float_format |
| 3340 | 3812 octave_stream::float_format (void) const |
| 2117 | 3813 { |
| 4574 | 3814 oct_mach_info::float_format retval = oct_mach_info::flt_fmt_unknown; |
| 2317 | 3815 |
| 5659 | 3816 if (stream_ok ()) |
| 2317 | 3817 retval = rep->float_format (); |
| 2117 | 3818 |
| 3819 return retval; | |
| 3820 } | |
| 3821 | |
| 3536 | 3822 std::string |
| 2117 | 3823 octave_stream::mode_as_string (int mode) |
| 3824 { | |
| 3523 | 3825 std::string retval = "???"; |
| 3775 | 3826 std::ios::openmode in_mode = static_cast<std::ios::openmode> (mode); |
| 3827 | |
| 3828 if (in_mode == std::ios::in) | |
| 3829 retval = "r"; | |
| 3830 else if (in_mode == std::ios::out | |
| 4078 | 3831 || in_mode == (std::ios::out | std::ios::trunc)) |
| 3775 | 3832 retval = "w"; |
| 4078 | 3833 else if (in_mode == (std::ios::out | std::ios::app)) |
| 3775 | 3834 retval = "a"; |
| 4078 | 3835 else if (in_mode == (std::ios::in | std::ios::out)) |
| 3775 | 3836 retval = "r+"; |
| 4078 | 3837 else if (in_mode == (std::ios::in | std::ios::out | std::ios::trunc)) |
| 3775 | 3838 retval = "w+"; |
| 4078 | 3839 else if (in_mode == (std::ios::in | std::ios::out | std::ios::ate)) |
| 3775 | 3840 retval = "a+"; |
| 4078 | 3841 else if (in_mode == (std::ios::in | std::ios::binary)) |
| 3775 | 3842 retval = "rb"; |
| 4078 | 3843 else if (in_mode == (std::ios::out | std::ios::binary) |
| 3844 || in_mode == (std::ios::out | std::ios::trunc | std::ios::binary)) | |
| 3775 | 3845 retval = "wb"; |
| 4078 | 3846 else if (in_mode == (std::ios::out | std::ios::app | std::ios::binary)) |
| 3775 | 3847 retval = "ab"; |
| 4078 | 3848 else if (in_mode == (std::ios::in | std::ios::out | std::ios::binary)) |
| 3775 | 3849 retval = "r+b"; |
| 4078 | 3850 else if (in_mode == (std::ios::in | std::ios::out | std::ios::trunc |
| 3851 | std::ios::binary)) | |
| 3775 | 3852 retval = "w+b"; |
| 4078 | 3853 else if (in_mode == (std::ios::in | std::ios::out | std::ios::ate |
| 3854 | std::ios::binary)) | |
| 3775 | 3855 retval = "a+b"; |
| 2117 | 3856 |
| 3857 return retval; | |
| 3858 } | |
| 3859 | |
| 3860 octave_stream_list *octave_stream_list::instance = 0; | |
| 3861 | |
| 2926 | 3862 bool |
| 3863 octave_stream_list::instance_ok (void) | |
| 3864 { | |
| 3865 bool retval = true; | |
| 3866 | |
| 3867 if (! instance) | |
| 3868 instance = new octave_stream_list (); | |
| 3869 | |
| 3870 if (! instance) | |
| 3871 { | |
| 3872 ::error ("unable to create stream list object!"); | |
| 3873 | |
| 3874 retval = false; | |
| 3875 } | |
| 3876 | |
| 3877 return retval; | |
| 3878 } | |
| 3879 | |
| 5353 | 3880 int |
| 6757 | 3881 octave_stream_list::insert (octave_stream& os) |
| 2926 | 3882 { |
| 5353 | 3883 return (instance_ok ()) ? instance->do_insert (os) : -1; |
| 2926 | 3884 } |
| 3885 | |
| 3340 | 3886 octave_stream |
| 3523 | 3887 octave_stream_list::lookup (int fid, const std::string& who) |
| 2926 | 3888 { |
| 3341 | 3889 return (instance_ok ()) ? instance->do_lookup (fid, who) : octave_stream (); |
| 2926 | 3890 } |
| 3891 | |
| 3340 | 3892 octave_stream |
| 3523 | 3893 octave_stream_list::lookup (const octave_value& fid, const std::string& who) |
| 2926 | 3894 { |
| 3341 | 3895 return (instance_ok ()) ? instance->do_lookup (fid, who) : octave_stream (); |
| 2926 | 3896 } |
| 3897 | |
| 3898 int | |
| 3523 | 3899 octave_stream_list::remove (int fid, const std::string& who) |
| 2926 | 3900 { |
| 3341 | 3901 return (instance_ok ()) ? instance->do_remove (fid, who) : -1; |
| 2926 | 3902 } |
| 3903 | |
| 3904 int | |
| 3523 | 3905 octave_stream_list::remove (const octave_value& fid, const std::string& who) |
| 2926 | 3906 { |
| 3341 | 3907 return (instance_ok ()) ? instance->do_remove (fid, who) : -1; |
| 2926 | 3908 } |
| 3909 | |
| 3910 void | |
| 3911 octave_stream_list::clear (void) | |
| 3912 { | |
| 3913 if (instance) | |
| 3914 instance->do_clear (); | |
| 3915 } | |
| 3916 | |
| 3917 string_vector | |
| 3918 octave_stream_list::get_info (int fid) | |
| 3919 { | |
| 3920 return (instance_ok ()) ? instance->do_get_info (fid) : string_vector (); | |
| 3921 } | |
| 3922 | |
| 3923 string_vector | |
| 3924 octave_stream_list::get_info (const octave_value& fid) | |
| 3925 { | |
| 3926 return (instance_ok ()) ? instance->do_get_info (fid) : string_vector (); | |
| 3927 } | |
| 3928 | |
| 3536 | 3929 std::string |
| 2926 | 3930 octave_stream_list::list_open_files (void) |
| 3931 { | |
| 3523 | 3932 return (instance_ok ()) ? instance->do_list_open_files () : std::string (); |
| 2926 | 3933 } |
| 3934 | |
| 3935 octave_value | |
| 3936 octave_stream_list::open_file_numbers (void) | |
| 3937 { | |
| 3938 return (instance_ok ()) | |
| 3939 ? instance->do_open_file_numbers () : octave_value (); | |
| 3940 } | |
| 3941 | |
| 3942 int | |
| 3943 octave_stream_list::get_file_number (const octave_value& fid) | |
| 3944 { | |
| 3945 return (instance_ok ()) ? instance->do_get_file_number (fid) : -1; | |
| 3946 } | |
| 3947 | |
| 5353 | 3948 int |
| 6757 | 3949 octave_stream_list::do_insert (octave_stream& os) |
| 2117 | 3950 { |
| 6757 | 3951 // Insert item with key corresponding to file-descriptor. |
| 3952 | |
| 3953 int stream_number; | |
| 3954 | |
| 3955 if ((stream_number = os.file_number ()) == -1) | |
| 3956 return stream_number; | |
| 3957 | |
| 3958 // Should we test for "(list.find (stream_number) != list.end ()) && | |
| 3959 // list[stream_number].is_open ()" and respond with "error | |
| 3960 // ("internal error: ...")"? It should not happen except for some | |
| 3961 // bug or if the user has opened a stream with an interpreted | |
| 3962 // command, but closed it directly with a system call in an | |
| 3963 // oct-file; then the kernel knows the fd is free, but Octave does | |
| 3964 // not know. If it happens, it should not do harm here to simply | |
| 3965 // overwrite this entry, although the wrong entry might have done | |
| 3966 // harm before. | |
| 3967 | |
| 3968 if (list.size () < list.max_size ()) | |
| 3969 list[stream_number] = os; | |
| 3970 else | |
| 2117 | 3971 { |
| 6757 | 3972 stream_number = -1; |
| 3973 error ("could not create file id"); | |
| 3340 | 3974 } |
| 2117 | 3975 |
| 5353 | 3976 return stream_number; |
| 6757 | 3977 |
| 2117 | 3978 } |
| 3979 | |
| 3341 | 3980 static void |
| 3523 | 3981 gripe_invalid_file_id (int fid, const std::string& who) |
| 3341 | 3982 { |
| 3983 if (who.empty ()) | |
| 3984 ::error ("invalid stream number = %d", fid); | |
| 3985 else | |
| 3986 ::error ("%s: invalid stream number = %d", who.c_str (), fid); | |
| 3987 } | |
| 3988 | |
| 3340 | 3989 octave_stream |
| 3523 | 3990 octave_stream_list::do_lookup (int fid, const std::string& who) const |
| 2117 | 3991 { |
| 3340 | 3992 octave_stream retval; |
| 2117 | 3993 |
| 6757 | 3994 if (fid >= 0) |
| 3995 { | |
| 3996 ostrl_map::const_iterator iter = list.find (fid); | |
| 3997 | |
| 3998 if (iter != list.end ()) | |
| 3999 retval = iter->second; | |
| 4000 else | |
| 4001 gripe_invalid_file_id (fid, who); | |
| 4002 } | |
| 3341 | 4003 else |
| 4004 gripe_invalid_file_id (fid, who); | |
| 2117 | 4005 |
| 4006 return retval; | |
| 4007 } | |
| 4008 | |
| 3340 | 4009 octave_stream |
| 3341 | 4010 octave_stream_list::do_lookup (const octave_value& fid, |
| 3523 | 4011 const std::string& who) const |
| 2117 | 4012 { |
| 3340 | 4013 octave_stream retval; |
| 2117 | 4014 |
| 4015 int i = get_file_number (fid); | |
| 4016 | |
| 4017 if (! error_state) | |
| 3341 | 4018 retval = do_lookup (i, who); |
| 2117 | 4019 |
| 4020 return retval; | |
| 4021 } | |
| 4022 | |
| 4023 int | |
| 3523 | 4024 octave_stream_list::do_remove (int fid, const std::string& who) |
| 2117 | 4025 { |
| 4026 int retval = -1; | |
| 4027 | |
| 3531 | 4028 // Can't remove stdin (std::cin), stdout (std::cout), or stderr |
| 4029 // (std::cerr). | |
| 2117 | 4030 |
| 6757 | 4031 if (fid > 2) |
| 2117 | 4032 { |
| 6757 | 4033 ostrl_map::iterator iter = list.find (fid); |
| 4034 | |
| 4035 if (iter != list.end ()) | |
| 2117 | 4036 { |
| 6757 | 4037 octave_stream os = iter->second; |
| 4038 | |
| 4039 if (os.is_valid ()) | |
| 4040 { | |
| 4041 os.close (); | |
| 4042 iter->second = octave_stream (); | |
| 4043 retval = 0; | |
| 4044 } | |
| 4045 else | |
| 4046 gripe_invalid_file_id (fid, who); | |
| 2117 | 4047 } |
| 3341 | 4048 else |
| 4049 gripe_invalid_file_id (fid, who); | |
| 2117 | 4050 } |
| 3341 | 4051 else |
| 4052 gripe_invalid_file_id (fid, who); | |
| 2117 | 4053 |
| 4054 return retval; | |
| 4055 } | |
| 4056 | |
| 4057 int | |
| 3523 | 4058 octave_stream_list::do_remove (const octave_value& fid, const std::string& who) |
| 2117 | 4059 { |
| 4060 int retval = -1; | |
| 4061 | |
| 6054 | 4062 if (fid.is_string () && fid.string_value () == "all") |
| 4063 { | |
| 6757 | 4064 for (ostrl_map::iterator p = list.begin (); p != list.end (); p++) |
| 6054 | 4065 { |
| 6757 | 4066 // Skip stdin, stdout, and stderr. |
| 4067 | |
| 4068 if (p->first > 2) | |
| 4069 { | |
| 4070 octave_stream os = p->second; | |
| 4071 | |
| 4072 if (os.is_valid ()) | |
| 4073 do_remove (p->first, who); | |
| 4074 } | |
| 6054 | 4075 } |
| 4076 | |
| 4077 retval = 0; | |
| 4078 } | |
| 4079 else | |
| 4080 { | |
| 4081 int i = get_file_number (fid); | |
| 4082 | |
| 4083 if (! error_state) | |
| 4084 retval = do_remove (i, who); | |
| 4085 } | |
| 2117 | 4086 |
| 4087 return retval; | |
| 4088 } | |
| 4089 | |
| 4090 void | |
| 4091 octave_stream_list::do_clear (void) | |
| 4092 { | |
| 4093 // Do flush stdout and stderr. | |
| 4094 | |
| 6757 | 4095 list[0].flush (); |
| 4096 list[1].flush (); | |
| 2117 | 4097 |
| 4098 // But don't delete them or stdin. | |
| 4099 | |
| 6757 | 4100 for (ostrl_map::iterator p = list.begin (); p != list.end (); p++) |
| 4101 { | |
| 4102 // Skip stdin, stdout, and stderr. | |
| 4103 | |
| 4104 if (p->first > 2) | |
| 4105 p->second = octave_stream (); | |
| 4106 } | |
| 2117 | 4107 } |
| 4108 | |
| 4109 string_vector | |
| 4110 octave_stream_list::do_get_info (int fid) const | |
| 4111 { | |
| 4112 string_vector retval; | |
| 4113 | |
| 3340 | 4114 octave_stream os = do_lookup (fid); |
| 2117 | 4115 |
| 3341 | 4116 if (os.is_valid ()) |
| 2117 | 4117 { |
| 4118 retval.resize (3); | |
| 4119 | |
| 3340 | 4120 retval(0) = os.name (); |
| 4121 retval(1) = octave_stream::mode_as_string (os.mode ()); | |
| 4122 retval(2) = oct_mach_info::float_format_as_string (os.float_format ()); | |
| 2117 | 4123 } |
| 4124 else | |
| 3341 | 4125 ::error ("invalid file id = %d", fid); |
| 2117 | 4126 |
| 4127 return retval; | |
| 4128 } | |
| 4129 | |
| 4130 string_vector | |
| 4131 octave_stream_list::do_get_info (const octave_value& fid) const | |
| 4132 { | |
| 4133 string_vector retval; | |
| 4134 | |
| 4135 int conv_err = 0; | |
| 4136 | |
| 4137 int int_fid = convert_to_valid_int (fid, conv_err); | |
| 4138 | |
| 4139 if (! conv_err) | |
| 4140 retval = do_get_info (int_fid); | |
| 4141 else | |
| 2915 | 4142 ::error ("file id must be a file object or integer value"); |
| 2117 | 4143 |
| 4144 return retval; | |
| 4145 } | |
| 4146 | |
| 3536 | 4147 std::string |
| 2117 | 4148 octave_stream_list::do_list_open_files (void) const |
| 4149 { | |
| 3523 | 4150 std::string retval; |
| 2117 | 4151 |
| 5765 | 4152 std::ostringstream buf; |
| 2117 | 4153 |
| 4154 buf << "\n" | |
| 4155 << " number mode arch name\n" | |
| 4156 << " ------ ---- ---- ----\n"; | |
| 4157 | |
| 6757 | 4158 for (ostrl_map::const_iterator p = list.begin (); p != list.end (); p++) |
| 2117 | 4159 { |
| 6757 | 4160 octave_stream os = p->second; |
| 2117 | 4161 |
| 4326 | 4162 buf << " " |
| 4163 << std::setiosflags (std::ios::right) | |
| 6757 | 4164 << std::setw (4) << p->first << " " |
| 4326 | 4165 << std::setiosflags (std::ios::left) |
| 4166 << std::setw (3) | |
| 4167 << octave_stream::mode_as_string (os.mode ()) | |
| 4168 << " " | |
| 4169 << std::setw (9) | |
| 4170 << oct_mach_info::float_format_as_string (os.float_format ()) | |
| 4171 << " " | |
| 4172 << os.name () << "\n"; | |
| 2117 | 4173 } |
| 4174 | |
| 5765 | 4175 buf << "\n"; |
| 4176 | |
| 4177 retval = buf.str (); | |
| 2117 | 4178 |
| 4179 return retval; | |
| 4180 } | |
| 4181 | |
| 4182 octave_value | |
| 4183 octave_stream_list::do_open_file_numbers (void) const | |
| 4184 { | |
| 6757 | 4185 Matrix retval (1, list.size (), 0.0); |
| 2117 | 4186 |
| 4187 int num_open = 0; | |
| 4188 | |
| 6757 | 4189 for (ostrl_map::const_iterator p = list.begin (); p != list.end (); p++) |
| 2117 | 4190 { |
| 6757 | 4191 // Skip stdin, stdout, and stderr. |
| 4192 | |
| 4193 if (p->first > 2 && p->second) | |
| 4194 retval(0,num_open++) = p->first; | |
| 2117 | 4195 } |
| 4196 | |
| 4197 retval.resize ((num_open > 0), num_open); | |
| 4198 | |
| 4199 return retval; | |
| 4200 } | |
| 4201 | |
| 4202 int | |
| 2609 | 4203 octave_stream_list::do_get_file_number (const octave_value& fid) const |
| 2117 | 4204 { |
| 4205 int retval = -1; | |
| 4206 | |
| 4207 if (fid.is_string ()) | |
| 4208 { | |
| 3523 | 4209 std::string nm = fid.string_value (); |
| 2117 | 4210 |
| 6757 | 4211 for (ostrl_map::const_iterator p = list.begin (); p != list.end (); p++) |
| 2117 | 4212 { |
| 6757 | 4213 // stdin (std::cin), stdout (std::cout), and stderr (std::cerr) |
| 4214 // are unnamed. | |
| 4215 | |
| 4216 if (p->first > 2) | |
| 2117 | 4217 { |
| 6757 | 4218 octave_stream os = p->second; |
| 4219 | |
| 4220 if (os && os.name () == nm) | |
| 4221 { | |
| 4222 retval = p->first; | |
| 4223 break; | |
| 4224 } | |
| 2117 | 4225 } |
| 4226 } | |
| 4227 } | |
| 4228 else | |
| 4229 { | |
| 4230 int conv_err = 0; | |
| 4231 | |
| 4232 int int_fid = convert_to_valid_int (fid, conv_err); | |
| 4233 | |
| 4234 if (conv_err) | |
| 3523 | 4235 ::error ("file id must be a file object, std::string, or integer value"); |
| 2117 | 4236 else |
| 4237 retval = int_fid; | |
| 4238 } | |
| 4239 | |
| 4240 return retval; | |
| 4241 } | |
| 4242 | |
| 4243 /* | |
| 4244 ;;; Local Variables: *** | |
| 4245 ;;; mode: C++ *** | |
| 4246 ;;; End: *** | |
| 4247 */ |