Mercurial > octave-nkf
annotate src/oct-stream.cc @ 10142:829e69ec3110
make OCTAVE_QUIT a function
| author | Jaroslav Hajek <highegg@gmail.com> |
|---|---|
| date | Wed, 20 Jan 2010 10:38:00 +0100 |
| parents | 4b270d1540f7 |
| children | cd96d29c5efa |
| rev | line source |
|---|---|
| 2117 | 1 /* |
| 2 | |
| 7017 | 3 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
| 8920 | 4 2005, 2006, 2007, 2008, 2009 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> |
|
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octave_scan_1: fix reading of hex numbers
Jaroslav Hajek <highegg@gmail.com>
parents:
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changeset
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29 #include <cctype> |
| 2215 | 30 #include <cstring> |
| 31 | |
| 3503 | 32 #include <iomanip> |
|
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clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
33 #include <iostream> |
| 3559 | 34 #include <fstream> |
| 5765 | 35 #include <sstream> |
| 3535 | 36 #include <string> |
| 2117 | 37 |
| 4944 | 38 #include <Array.h> |
| 39 | |
| 40 #include "byte-swap.h" | |
| 2117 | 41 #include "lo-ieee.h" |
| 42 #include "lo-mappers.h" | |
| 43 #include "lo-utils.h" | |
| 44 #include "str-vec.h" | |
| 4153 | 45 #include "quit.h" |
| 2117 | 46 |
| 47 #include "error.h" | |
| 7352 | 48 #include "gripes.h" |
| 3342 | 49 #include "input.h" |
| 3775 | 50 #include "oct-stdstrm.h" |
| 2117 | 51 #include "oct-stream.h" |
| 2877 | 52 #include "oct-obj.h" |
| 2117 | 53 #include "utils.h" |
| 54 | |
| 55 // Possible values for conv_err: | |
| 56 // | |
| 57 // 1 : not a real scalar | |
| 2902 | 58 // 2 : value is NaN |
| 59 // 3 : value is not an integer | |
| 2117 | 60 |
| 61 static int | |
| 62 convert_to_valid_int (const octave_value& tc, int& conv_err) | |
| 63 { | |
| 64 int retval = 0; | |
| 65 | |
| 66 conv_err = 0; | |
| 67 | |
| 2902 | 68 double dval = tc.double_value (); |
| 69 | |
| 70 if (! error_state) | |
| 2117 | 71 { |
| 5389 | 72 if (! lo_ieee_isnan (dval)) |
| 2117 | 73 { |
| 2902 | 74 int ival = NINT (dval); |
| 75 | |
| 76 if (ival == dval) | |
| 77 retval = ival; | |
| 2117 | 78 else |
| 79 conv_err = 3; | |
| 80 } | |
| 81 else | |
| 82 conv_err = 2; | |
| 83 } | |
| 84 else | |
| 85 conv_err = 1; | |
| 86 | |
| 87 return retval; | |
| 88 } | |
| 89 | |
| 90 static int | |
| 4468 | 91 get_size (double d, const std::string& who) |
| 2117 | 92 { |
| 93 int retval = -1; | |
| 94 | |
| 5389 | 95 if (! lo_ieee_isnan (d)) |
| 2117 | 96 { |
| 97 if (! xisinf (d)) | |
| 98 { | |
| 3268 | 99 if (d >= 0.0) |
| 2117 | 100 retval = NINT (d); |
| 101 else | |
| 102 ::error ("%s: negative value invalid as size specification", | |
| 4468 | 103 who.c_str ()); |
| 2117 | 104 } |
| 105 else | |
| 106 retval = -1; | |
| 107 } | |
| 108 else | |
| 4468 | 109 ::error ("%s: NaN is invalid as size specification", who.c_str ()); |
| 2117 | 110 |
| 111 return retval; | |
| 112 } | |
| 113 | |
| 114 static void | |
| 5275 | 115 get_size (const Array<double>& size, octave_idx_type& nr, octave_idx_type& nc, bool& one_elt_size_spec, |
| 4468 | 116 const std::string& who) |
| 2117 | 117 { |
| 118 nr = -1; | |
| 119 nc = -1; | |
| 120 | |
| 3268 | 121 one_elt_size_spec = false; |
| 122 | |
| 2117 | 123 double dnr = -1.0; |
| 124 double dnc = -1.0; | |
| 125 | |
| 5275 | 126 octave_idx_type sz_len = size.length (); |
| 3810 | 127 |
| 128 if (sz_len == 1) | |
| 2601 | 129 { |
| 3268 | 130 one_elt_size_spec = true; |
| 131 | |
| 3810 | 132 dnr = size (0); |
| 4293 | 133 |
| 134 dnc = (dnr == 0.0) ? 0.0 : 1.0; | |
| 2601 | 135 } |
| 3810 | 136 else if (sz_len == 2) |
| 2117 | 137 { |
| 3810 | 138 dnr = size (0); |
| 139 | |
| 140 if (! xisinf (dnr)) | |
| 141 dnc = size (1); | |
| 142 else | |
| 4468 | 143 ::error ("%s: invalid size specification", who.c_str ()); |
| 2117 | 144 } |
| 145 else | |
| 4468 | 146 ::error ("%s: invalid size specification", who.c_str ()); |
| 2117 | 147 |
| 148 if (! error_state) | |
| 149 { | |
| 4468 | 150 nr = get_size (dnr, who); |
| 2117 | 151 |
| 3268 | 152 if (! error_state && dnc >= 0.0) |
| 4468 | 153 nc = get_size (dnc, who); |
| 2117 | 154 } |
| 155 } | |
| 156 | |
| 3523 | 157 scanf_format_list::scanf_format_list (const std::string& s) |
| 2117 | 158 : nconv (0), curr_idx (0), list (16), buf (0) |
| 159 { | |
| 160 int num_elts = 0; | |
| 161 | |
| 162 int n = s.length (); | |
| 163 | |
| 164 int i = 0; | |
| 165 | |
| 2215 | 166 int width = 0; |
| 2117 | 167 bool discard = false; |
| 168 char modifier = '\0'; | |
| 169 char type = '\0'; | |
| 170 | |
| 171 bool have_more = true; | |
| 172 | |
| 173 while (i < n) | |
| 174 { | |
| 175 have_more = true; | |
| 176 | |
| 177 if (! buf) | |
| 5765 | 178 buf = new std::ostringstream (); |
| 2117 | 179 |
| 180 if (s[i] == '%') | |
| 181 { | |
| 3483 | 182 // Process percent-escape conversion type. |
| 183 | |
| 2215 | 184 process_conversion (s, i, n, width, discard, type, modifier, |
| 185 num_elts); | |
| 2117 | 186 have_more = (buf != 0); |
| 187 } | |
| 3483 | 188 else if (isspace (s[i])) |
| 2117 | 189 { |
| 3483 | 190 type = scanf_format_elt::whitespace_conversion; |
| 191 | |
| 2215 | 192 width = 0; |
| 2117 | 193 discard = false; |
| 194 modifier = '\0'; | |
| 3483 | 195 *buf << " "; |
| 196 | |
| 197 while (++i < n && isspace (s[i])) | |
| 198 /* skip whitespace */; | |
| 199 | |
| 200 add_elt_to_list (width, discard, type, modifier, num_elts); | |
| 201 | |
| 202 have_more = false; | |
| 203 } | |
| 204 else | |
| 205 { | |
| 206 type = scanf_format_elt::literal_conversion; | |
| 207 | |
| 208 width = 0; | |
| 209 discard = false; | |
| 210 modifier = '\0'; | |
| 211 | |
| 212 while (i < n && ! isspace (s[i]) && s[i] != '%') | |
| 213 *buf << s[i++]; | |
| 214 | |
| 215 add_elt_to_list (width, discard, type, modifier, num_elts); | |
| 216 | |
| 217 have_more = false; | |
| 2117 | 218 } |
| 219 | |
| 220 if (nconv < 0) | |
| 221 { | |
| 222 have_more = false; | |
| 223 break; | |
| 224 } | |
| 225 } | |
| 226 | |
| 227 if (have_more) | |
| 2215 | 228 add_elt_to_list (width, discard, type, modifier, num_elts); |
| 2117 | 229 |
| 230 list.resize (num_elts); | |
| 231 | |
| 232 delete buf; | |
| 233 } | |
| 234 | |
| 235 scanf_format_list::~scanf_format_list (void) | |
| 236 { | |
| 5275 | 237 octave_idx_type n = list.length (); |
| 238 | |
| 239 for (octave_idx_type i = 0; i < n; i++) | |
| 2117 | 240 { |
| 3340 | 241 scanf_format_elt *elt = list(i); |
| 2117 | 242 delete elt; |
| 243 } | |
| 244 } | |
| 245 | |
| 246 void | |
| 2215 | 247 scanf_format_list::add_elt_to_list (int width, bool discard, char type, |
| 3483 | 248 char modifier, int& num_elts, |
| 3523 | 249 const std::string& char_class) |
| 2117 | 250 { |
| 251 if (buf) | |
| 252 { | |
| 5765 | 253 std::string text = buf->str (); |
| 4051 | 254 |
| 255 if (! text.empty ()) | |
| 2117 | 256 { |
| 4051 | 257 scanf_format_elt *elt |
| 258 = new scanf_format_elt (text.c_str (), width, discard, type, | |
| 259 modifier, char_class); | |
| 260 | |
| 261 if (num_elts == list.length ()) | |
| 262 list.resize (2 * num_elts); | |
| 263 | |
| 264 list(num_elts++) = elt; | |
| 2117 | 265 } |
| 266 | |
| 267 delete buf; | |
| 268 buf = 0; | |
| 269 } | |
| 270 } | |
| 271 | |
| 3535 | 272 static std::string |
| 3523 | 273 expand_char_class (const std::string& s) |
| 3483 | 274 { |
| 3523 | 275 std::string retval; |
| 3483 | 276 |
| 277 size_t len = s.length (); | |
| 278 | |
| 279 size_t i = 0; | |
| 280 | |
| 281 while (i < len) | |
| 282 { | |
| 283 unsigned char c = s[i++]; | |
| 284 | |
| 285 if (c == '-' && i > 1 && i < len | |
| 5760 | 286 && static_cast<unsigned char> (s[i-2]) <= static_cast<unsigned char> (s[i])) |
| 3483 | 287 { |
| 288 // Add all characters from the range except the first (we | |
| 289 // already added it below). | |
| 290 | |
| 291 for (c = s[i-2]+1; c < s[i]; c++) | |
| 292 retval += c; | |
| 293 } | |
| 294 else | |
| 295 { | |
| 296 // Add the character to the class. Only add '-' if it is | |
| 297 // the last character in the class. | |
| 298 | |
| 299 if (c != '-' || i == len) | |
| 300 retval += c; | |
| 301 } | |
| 302 } | |
| 303 | |
| 304 return retval; | |
| 305 } | |
| 306 | |
| 2117 | 307 void |
| 3523 | 308 scanf_format_list::process_conversion (const std::string& s, int& i, int n, |
| 2215 | 309 int& width, bool& discard, char& type, |
| 2117 | 310 char& modifier, int& num_elts) |
| 311 { | |
| 2215 | 312 width = 0; |
| 2117 | 313 discard = false; |
| 314 modifier = '\0'; | |
| 315 type = '\0'; | |
| 316 | |
| 317 *buf << s[i++]; | |
| 318 | |
| 319 bool have_width = false; | |
| 320 | |
| 321 while (i < n) | |
| 322 { | |
| 323 switch (s[i]) | |
| 324 { | |
| 325 case '*': | |
| 326 if (discard) | |
| 327 nconv = -1; | |
| 328 else | |
| 329 { | |
| 330 discard = true; | |
| 331 *buf << s[i++]; | |
| 332 } | |
| 333 break; | |
| 334 | |
| 335 case '0': case '1': case '2': case '3': case '4': | |
| 336 case '5': case '6': case '7': case '8': case '9': | |
| 337 if (have_width) | |
| 338 nconv = -1; | |
| 339 else | |
| 340 { | |
| 2215 | 341 char c = s[i++]; |
| 342 width = width * 10 + c - '0'; | |
| 2117 | 343 have_width = true; |
| 2215 | 344 *buf << c; |
| 2117 | 345 while (i < n && isdigit (s[i])) |
| 2215 | 346 { |
| 347 c = s[i++]; | |
| 348 width = width * 10 + c - '0'; | |
| 349 *buf << c; | |
| 350 } | |
| 2117 | 351 } |
| 352 break; | |
| 353 | |
| 354 case 'h': case 'l': case 'L': | |
| 355 if (modifier != '\0') | |
| 356 nconv = -1; | |
| 357 else | |
| 2663 | 358 modifier = s[i++]; |
| 2117 | 359 break; |
| 360 | |
| 361 case 'd': case 'i': case 'o': case 'u': case 'x': | |
| 362 if (modifier == 'L') | |
| 363 { | |
| 364 nconv = -1; | |
| 365 break; | |
| 366 } | |
| 367 goto fini; | |
| 368 | |
| 369 case 'e': case 'f': case 'g': | |
| 370 if (modifier == 'h') | |
| 371 { | |
| 372 nconv = -1; | |
| 373 break; | |
| 374 } | |
| 2663 | 375 |
| 376 // No float or long double conversions, thanks. | |
| 377 *buf << 'l'; | |
| 378 | |
| 2117 | 379 goto fini; |
| 380 | |
| 381 case 'c': case 's': case 'p': case '%': case '[': | |
| 382 if (modifier != '\0') | |
| 383 { | |
| 384 nconv = -1; | |
| 385 break; | |
| 386 } | |
| 387 goto fini; | |
| 388 | |
| 389 fini: | |
| 390 { | |
| 2215 | 391 if (finish_conversion (s, i, n, width, discard, type, |
| 2117 | 392 modifier, num_elts) == 0) |
| 393 return; | |
| 394 } | |
| 395 break; | |
| 396 | |
| 397 default: | |
| 398 nconv = -1; | |
| 399 break; | |
| 400 } | |
| 401 | |
| 402 if (nconv < 0) | |
| 403 break; | |
| 404 } | |
| 405 | |
| 406 nconv = -1; | |
| 407 } | |
| 408 | |
| 409 int | |
| 3523 | 410 scanf_format_list::finish_conversion (const std::string& s, int& i, int n, |
| 2215 | 411 int& width, bool discard, char& type, |
| 2117 | 412 char modifier, int& num_elts) |
| 413 { | |
| 414 int retval = 0; | |
| 415 | |
| 3523 | 416 std::string char_class; |
| 3483 | 417 |
| 3640 | 418 int beg_idx = -1; |
| 419 int end_idx = -1; | |
| 420 | |
| 2117 | 421 if (s[i] == '%') |
| 3640 | 422 { |
| 423 type = '%'; | |
| 424 *buf << s[i++]; | |
| 425 } | |
| 2117 | 426 else |
| 427 { | |
| 428 type = s[i]; | |
| 429 | |
| 430 if (s[i] == '[') | |
| 431 { | |
| 432 *buf << s[i++]; | |
| 433 | |
| 434 if (i < n) | |
| 435 { | |
| 3483 | 436 beg_idx = i; |
| 437 | |
| 2117 | 438 if (s[i] == '^') |
| 439 { | |
| 440 type = '^'; | |
| 441 *buf << s[i++]; | |
| 3483 | 442 |
| 443 if (i < n) | |
| 444 { | |
| 445 beg_idx = i; | |
| 446 | |
| 447 if (s[i] == ']') | |
| 448 *buf << s[i++]; | |
| 449 } | |
| 2117 | 450 } |
| 451 else if (s[i] == ']') | |
| 452 *buf << s[i++]; | |
| 453 } | |
| 454 | |
| 455 while (i < n && s[i] != ']') | |
| 456 *buf << s[i++]; | |
| 457 | |
| 458 if (i < n && s[i] == ']') | |
| 3483 | 459 { |
| 460 end_idx = i-1; | |
| 461 *buf << s[i++]; | |
| 462 } | |
| 2117 | 463 |
| 464 if (s[i-1] != ']') | |
| 465 retval = nconv = -1; | |
| 466 } | |
| 467 else | |
| 2215 | 468 *buf << s[i++]; |
| 3640 | 469 } |
| 470 | |
| 471 nconv++; | |
| 472 | |
| 473 if (nconv > 0) | |
| 474 { | |
| 475 if (beg_idx >= 0 && end_idx >= 0) | |
| 476 char_class = expand_char_class (s.substr (beg_idx, | |
| 477 end_idx - beg_idx + 1)); | |
| 478 | |
| 479 add_elt_to_list (width, discard, type, modifier, num_elts, char_class); | |
| 2117 | 480 } |
| 481 | |
| 482 return retval; | |
| 483 } | |
| 484 | |
| 485 void | |
| 486 scanf_format_list::printme (void) const | |
| 487 { | |
| 488 int n = list.length (); | |
| 489 | |
| 490 for (int i = 0; i < n; i++) | |
| 491 { | |
| 3340 | 492 scanf_format_elt *elt = list(i); |
| 2117 | 493 |
| 3531 | 494 std::cerr |
| 495 << "width: " << elt->width << "\n" | |
| 496 << "discard: " << elt->discard << "\n" | |
| 497 << "type: "; | |
| 3483 | 498 |
| 499 if (elt->type == scanf_format_elt::literal_conversion) | |
| 3531 | 500 std::cerr << "literal text\n"; |
| 3483 | 501 else if (elt->type == scanf_format_elt::whitespace_conversion) |
| 3531 | 502 std::cerr << "whitespace\n"; |
| 3483 | 503 else |
| 3531 | 504 std::cerr << elt->type << "\n"; |
| 505 | |
| 506 std::cerr | |
| 507 << "modifier: " << elt->modifier << "\n" | |
| 508 << "char_class: `" << undo_string_escapes (elt->char_class) << "'\n" | |
| 509 << "text: `" << undo_string_escapes (elt->text) << "'\n\n"; | |
| 2117 | 510 } |
| 511 } | |
| 512 | |
| 513 bool | |
| 514 scanf_format_list::all_character_conversions (void) | |
| 515 { | |
| 516 int n = list.length (); | |
| 517 | |
| 518 if (n > 0) | |
| 519 { | |
| 520 for (int i = 0; i < n; i++) | |
| 521 { | |
| 3340 | 522 scanf_format_elt *elt = list(i); |
| 2117 | 523 |
| 524 switch (elt->type) | |
| 525 { | |
| 3483 | 526 case 'c': case 's': case '%': case '[': case '^': |
| 527 case scanf_format_elt::literal_conversion: | |
| 528 case scanf_format_elt::whitespace_conversion: | |
| 2117 | 529 break; |
| 530 | |
| 531 default: | |
| 532 return false; | |
| 533 break; | |
| 534 } | |
| 535 } | |
| 536 | |
| 537 return true; | |
| 538 } | |
| 539 else | |
| 540 return false; | |
| 541 } | |
| 542 | |
| 543 bool | |
| 544 scanf_format_list::all_numeric_conversions (void) | |
| 545 { | |
| 546 int n = list.length (); | |
| 547 | |
| 548 if (n > 0) | |
| 549 { | |
| 550 for (int i = 0; i < n; i++) | |
| 551 { | |
| 3340 | 552 scanf_format_elt *elt = list(i); |
| 2117 | 553 |
| 554 switch (elt->type) | |
| 555 { | |
| 556 case 'd': case 'i': case 'o': case 'u': case 'x': | |
| 557 case 'e': case 'f': case 'g': | |
| 558 break; | |
| 559 | |
| 560 default: | |
| 561 return false; | |
| 562 break; | |
| 563 } | |
| 564 } | |
| 565 | |
| 566 return true; | |
| 567 } | |
| 568 else | |
| 569 return false; | |
| 570 } | |
| 571 | |
| 572 // Ugh again. | |
| 573 | |
| 3523 | 574 printf_format_list::printf_format_list (const std::string& s) |
| 2117 | 575 : nconv (0), curr_idx (0), list (16), buf (0) |
| 576 { | |
| 577 int num_elts = 0; | |
| 578 | |
| 579 int n = s.length (); | |
| 580 | |
| 581 int i = 0; | |
| 582 | |
| 583 int args = 0; | |
| 3643 | 584 std::string flags; |
| 3640 | 585 int fw = 0; |
| 586 int prec = 0; | |
| 2117 | 587 char modifier = '\0'; |
| 588 char type = '\0'; | |
| 589 | |
| 590 bool have_more = true; | |
| 3640 | 591 bool empty_buf = true; |
| 2117 | 592 |
| 4223 | 593 if (n == 0) |
| 2117 | 594 { |
| 4223 | 595 printf_format_elt *elt |
| 596 = new printf_format_elt ("", args, fw, prec, flags, type, modifier); | |
| 597 | |
| 598 list(num_elts++) = elt; | |
| 599 | |
| 600 list.resize (num_elts); | |
| 601 } | |
| 602 else | |
| 603 { | |
| 604 while (i < n) | |
| 3640 | 605 { |
| 4223 | 606 have_more = true; |
| 607 | |
| 608 if (! buf) | |
| 609 { | |
| 5765 | 610 buf = new std::ostringstream (); |
| 4223 | 611 empty_buf = true; |
| 612 } | |
| 613 | |
| 614 switch (s[i]) | |
| 615 { | |
| 616 case '%': | |
| 3640 | 617 { |
| 4223 | 618 if (empty_buf) |
| 619 { | |
| 620 process_conversion (s, i, n, args, flags, fw, prec, | |
| 621 type, modifier, num_elts); | |
| 622 | |
| 623 have_more = (buf != 0); | |
| 624 } | |
| 625 else | |
| 626 add_elt_to_list (args, flags, fw, prec, type, modifier, | |
| 627 num_elts); | |
| 3640 | 628 } |
| 4223 | 629 break; |
| 630 | |
| 631 default: | |
| 632 { | |
| 633 args = 0; | |
| 634 flags = ""; | |
| 635 fw = 0; | |
| 636 prec = 0; | |
| 637 modifier = '\0'; | |
| 638 type = '\0'; | |
| 639 *buf << s[i++]; | |
| 640 empty_buf = false; | |
| 641 } | |
| 642 break; | |
| 643 } | |
| 644 | |
| 645 if (nconv < 0) | |
| 646 { | |
| 647 have_more = false; | |
| 648 break; | |
| 649 } | |
| 2117 | 650 } |
| 651 | |
| 4223 | 652 if (have_more) |
| 653 add_elt_to_list (args, flags, fw, prec, type, modifier, num_elts); | |
| 654 | |
| 655 list.resize (num_elts); | |
| 656 | |
| 657 delete buf; | |
| 2117 | 658 } |
| 659 } | |
| 660 | |
| 661 printf_format_list::~printf_format_list (void) | |
| 662 { | |
| 663 int n = list.length (); | |
| 664 | |
| 665 for (int i = 0; i < n; i++) | |
| 666 { | |
| 3340 | 667 printf_format_elt *elt = list(i); |
| 2117 | 668 delete elt; |
| 669 } | |
| 670 } | |
| 671 | |
| 672 void | |
| 3640 | 673 printf_format_list::add_elt_to_list (int args, const std::string& flags, |
| 674 int fw, int prec, char type, | |
| 675 char modifier, int& num_elts) | |
| 2117 | 676 { |
| 677 if (buf) | |
| 678 { | |
| 5765 | 679 std::string text = buf->str (); |
| 4051 | 680 |
| 681 if (! text.empty ()) | |
| 2117 | 682 { |
| 4051 | 683 printf_format_elt *elt |
| 684 = new printf_format_elt (text.c_str (), args, fw, prec, flags, | |
| 685 type, modifier); | |
| 686 | |
| 687 if (num_elts == list.length ()) | |
| 688 list.resize (2 * num_elts); | |
| 689 | |
| 690 list(num_elts++) = elt; | |
| 2117 | 691 } |
| 692 | |
| 693 delete buf; | |
| 694 buf = 0; | |
| 695 } | |
| 696 } | |
| 697 | |
| 698 void | |
| 3640 | 699 printf_format_list::process_conversion |
| 700 (const std::string& s, int& i, int n, int& args, std::string& flags, | |
| 701 int& fw, int& prec, char& modifier, char& type, int& num_elts) | |
| 2117 | 702 { |
| 703 args = 0; | |
| 3640 | 704 flags = ""; |
| 705 fw = 0; | |
| 706 prec = 0; | |
| 2117 | 707 modifier = '\0'; |
| 708 type = '\0'; | |
| 709 | |
| 710 *buf << s[i++]; | |
| 711 | |
| 4587 | 712 bool nxt = false; |
| 2117 | 713 |
| 714 while (i < n) | |
| 715 { | |
| 716 switch (s[i]) | |
| 717 { | |
| 718 case '-': case '+': case ' ': case '0': case '#': | |
| 3640 | 719 flags += s[i]; |
| 2117 | 720 *buf << s[i++]; |
| 721 break; | |
| 722 | |
| 723 default: | |
| 4587 | 724 nxt = true; |
| 2117 | 725 break; |
| 726 } | |
| 727 | |
| 4587 | 728 if (nxt) |
| 2117 | 729 break; |
| 730 } | |
| 731 | |
| 732 if (i < n) | |
| 733 { | |
| 734 if (s[i] == '*') | |
| 735 { | |
| 3640 | 736 fw = -1; |
| 2117 | 737 args++; |
| 738 *buf << s[i++]; | |
| 739 } | |
| 740 else | |
| 741 { | |
| 3640 | 742 if (isdigit (s[i])) |
| 743 { | |
| 4587 | 744 int nn = 0; |
| 3643 | 745 std::string tmp = s.substr (i); |
| 4587 | 746 sscanf (tmp.c_str (), "%d%n", &fw, &nn); |
| 3640 | 747 } |
| 748 | |
| 2117 | 749 while (i < n && isdigit (s[i])) |
| 750 *buf << s[i++]; | |
| 751 } | |
| 752 } | |
| 753 | |
| 754 if (i < n && s[i] == '.') | |
| 755 { | |
| 756 *buf << s[i++]; | |
| 757 | |
| 758 if (i < n) | |
| 759 { | |
| 760 if (s[i] == '*') | |
| 761 { | |
| 3640 | 762 prec = -1; |
| 2117 | 763 args++; |
| 764 *buf << s[i++]; | |
| 765 } | |
| 766 else | |
| 767 { | |
| 3640 | 768 if (isdigit (s[i])) |
| 769 { | |
| 4587 | 770 int nn = 0; |
| 3643 | 771 std::string tmp = s.substr (i); |
| 4587 | 772 sscanf (tmp.c_str (), "%d%n", &prec, &nn); |
| 3640 | 773 } |
| 774 | |
| 2117 | 775 while (i < n && isdigit (s[i])) |
| 776 *buf << s[i++]; | |
| 777 } | |
| 778 } | |
| 779 } | |
| 780 | |
| 781 if (i < n) | |
| 782 { | |
| 783 switch (s[i]) | |
| 784 { | |
| 785 case 'h': case 'l': case 'L': | |
| 786 modifier = s[i]; | |
| 787 *buf << s[i++]; | |
| 788 break; | |
| 789 | |
| 790 default: | |
| 791 break; | |
| 792 } | |
| 793 } | |
| 794 | |
| 795 if (i < n) | |
| 3640 | 796 finish_conversion (s, i, args, flags, fw, prec, modifier, type, num_elts); |
| 2117 | 797 else |
| 798 nconv = -1; | |
| 799 } | |
| 800 | |
| 801 void | |
| 3640 | 802 printf_format_list::finish_conversion |
| 803 (const std::string& s, int& i, int args, const std::string& flags, | |
| 804 int fw, int prec, char modifier, char& type, int& num_elts) | |
| 2117 | 805 |
| 806 { | |
| 807 switch (s[i]) | |
| 808 { | |
| 809 case 'd': case 'i': case 'o': case 'x': case 'X': | |
| 810 case 'u': case 'c': | |
| 811 if (modifier == 'L') | |
| 812 { | |
| 813 nconv = -1; | |
| 814 break; | |
| 815 } | |
| 816 goto fini; | |
| 817 | |
| 818 case 'f': case 'e': case 'E': case 'g': case 'G': | |
| 819 if (modifier == 'h' || modifier == 'l') | |
| 820 { | |
| 821 nconv = -1; | |
| 822 break; | |
| 823 } | |
| 824 goto fini; | |
| 825 | |
| 826 case 's': case 'p': case '%': | |
| 827 if (modifier != '\0') | |
| 828 { | |
| 829 nconv = -1; | |
| 830 break; | |
| 831 } | |
| 832 goto fini; | |
| 833 | |
| 834 fini: | |
| 835 | |
| 3640 | 836 type = s[i]; |
| 837 | |
| 838 *buf << s[i++]; | |
| 839 | |
| 840 if (type != '%' || args != 0) | |
| 841 nconv++; | |
| 842 | |
| 843 if (type != '%') | |
| 844 args++; | |
| 845 | |
| 846 add_elt_to_list (args, flags, fw, prec, type, modifier, num_elts); | |
| 847 | |
| 2117 | 848 break; |
| 849 | |
| 850 default: | |
| 851 nconv = -1; | |
| 852 break; | |
| 853 } | |
| 854 } | |
| 855 | |
| 856 void | |
| 857 printf_format_list::printme (void) const | |
| 858 { | |
| 859 int n = list.length (); | |
| 860 | |
| 861 for (int i = 0; i < n; i++) | |
| 862 { | |
| 3340 | 863 printf_format_elt *elt = list(i); |
| 2117 | 864 |
| 3640 | 865 std::cerr |
| 866 << "args: " << elt->args << "\n" | |
| 867 << "flags: `" << elt->flags << "'\n" | |
| 868 << "width: " << elt->fw << "\n" | |
| 869 << "prec: " << elt->prec << "\n" | |
| 870 << "type: `" << elt->type << "'\n" | |
| 871 << "modifier: `" << elt->modifier << "'\n" | |
| 872 << "text: `" << undo_string_escapes (elt->text) << "'\n\n"; | |
| 2117 | 873 } |
| 874 } | |
| 875 | |
| 3145 | 876 int |
| 3148 | 877 octave_base_stream::file_number (void) |
| 3145 | 878 { |
| 879 // Kluge alert! | |
| 880 | |
| 881 if (name () == "stdin") | |
| 882 return 0; | |
| 883 | |
| 884 if (name () == "stdout") | |
| 885 return 1; | |
| 886 | |
| 887 if (name () == "stderr") | |
| 888 return 2; | |
| 889 | |
| 890 int retval = -1; | |
| 891 | |
| 3523 | 892 std::istream *is = input_stream (); |
| 893 std::ostream *os = output_stream (); | |
| 3145 | 894 |
| 3775 | 895 // There is no standard way to get the underlying file descriptor from |
| 896 // std::filebuf (nor in the GNU libstdc++-v3 implementation). We cache | |
| 897 // the descriptor in c_file_ptr_buf, and then extract it here. | |
| 898 | |
| 6757 | 899 c_file_ptr_buf *ibuf |
| 900 = is ? dynamic_cast<c_file_ptr_buf *> (is->rdbuf ()) : 0; | |
| 901 | |
| 902 c_file_ptr_buf *obuf | |
| 903 = os ? dynamic_cast<c_file_ptr_buf *> (os->rdbuf ()) : 0; | |
| 3775 | 904 |
| 905 int i_fid = ibuf ? ibuf->file_number () : -1; | |
| 906 int o_fid = obuf ? obuf->file_number () : -1; | |
| 3145 | 907 |
| 908 if (i_fid >= 0) | |
| 909 { | |
| 910 if (o_fid >= 0) | |
| 911 retval = (i_fid == o_fid) ? i_fid : -1; | |
| 912 else | |
| 913 retval = i_fid; | |
| 914 } | |
| 915 else if (o_fid >= 0) | |
| 916 retval = o_fid; | |
| 917 | |
| 918 return retval; | |
| 919 } | |
| 920 | |
| 2117 | 921 void |
| 3523 | 922 octave_base_stream::error (const std::string& msg) |
| 2117 | 923 { |
| 924 fail = true; | |
| 925 errmsg = msg; | |
| 926 } | |
| 927 | |
| 928 void | |
| 4468 | 929 octave_base_stream::error (const std::string& who, const std::string& msg) |
| 930 { | |
| 931 fail = true; | |
| 6296 | 932 errmsg = who + ": " + msg; |
| 4468 | 933 } |
| 934 | |
| 935 void | |
| 2117 | 936 octave_base_stream::clear (void) |
| 937 { | |
| 4889 | 938 fail = false; |
| 939 errmsg = ""; | |
| 940 } | |
| 941 | |
| 942 void | |
| 943 octave_base_stream::clearerr (void) | |
| 944 { | |
| 4888 | 945 std::istream *is = input_stream (); |
| 946 std::ostream *os = output_stream (); | |
| 947 | |
| 948 if (is) | |
| 949 is->clear (); | |
| 950 | |
| 951 if (os) | |
| 952 os->clear (); | |
| 2117 | 953 } |
| 954 | |
| 955 // Functions that are defined for all input streams (input streams | |
| 956 // are those that define is). | |
| 957 | |
| 3536 | 958 std::string |
| 5275 | 959 octave_base_stream::do_gets (octave_idx_type max_len, bool& err, |
| 4468 | 960 bool strip_newline, const std::string& who) |
| 2117 | 961 { |
| 3523 | 962 std::string retval; |
| 2117 | 963 |
|
8773
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964 if ((interactive || forced_interactive) && file_number () == 0) |
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965 { |
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966 ::error ("%s: unable to read from stdin while running interactively", |
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967 who.c_str ()); |
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968 |
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969 return retval; |
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970 } |
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971 |
| 2117 | 972 err = false; |
| 973 | |
| 3523 | 974 std::istream *isp = input_stream (); |
| 2117 | 975 |
| 976 if (isp) | |
| 977 { | |
| 3523 | 978 std::istream& is = *isp; |
| 2117 | 979 |
| 5765 | 980 std::ostringstream buf; |
| 2117 | 981 |
| 982 int c = 0; | |
| 3553 | 983 int char_count = 0; |
| 6345 | 984 |
| 985 if (max_len != 0) | |
| 2117 | 986 { |
| 6345 | 987 while (is && (c = is.get ()) != EOF) |
| 2117 | 988 { |
| 6345 | 989 char_count++; |
| 990 | |
|
8739
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991 // Handle CRLF, CR, or LF as line ending. |
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992 |
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993 if (c == '\r') |
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994 { |
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995 if (! strip_newline) |
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996 buf << static_cast<char> (c); |
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997 |
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998 c = is.get (); |
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999 |
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1000 if (c != EOF) |
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1001 { |
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1002 if (c == '\n') |
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1003 { |
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1004 char_count++; |
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1005 |
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1006 if (! strip_newline) |
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1007 buf << static_cast<char> (c); |
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1008 } |
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1009 else |
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1010 is.putback (c); |
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1011 } |
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1012 |
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1013 break; |
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1014 } |
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1015 else if (c == '\n') |
| 6345 | 1016 { |
| 1017 if (! strip_newline) | |
| 1018 buf << static_cast<char> (c); | |
| 1019 | |
| 1020 break; | |
| 1021 } | |
| 1022 else | |
| 5760 | 1023 buf << static_cast<char> (c); |
| 6345 | 1024 |
| 1025 if (max_len > 0 && char_count == max_len) | |
| 1026 break; | |
| 2117 | 1027 } |
| 6345 | 1028 } |
| 1029 | |
| 1030 if (! is.eof () && char_count > 0) | |
| 1031 { | |
| 1032 // GAGME. Matlab seems to check for EOF even if the last | |
| 1033 // character in a file is a newline character. This is NOT | |
| 1034 // what the corresponding C-library functions do. | |
| 1035 int disgusting_compatibility_hack = is.get (); | |
| 1036 if (! is.eof ()) | |
| 1037 is.putback (disgusting_compatibility_hack); | |
| 2117 | 1038 } |
| 1039 | |
| 4224 | 1040 if (is.good () || (is.eof () && char_count > 0)) |
| 5765 | 1041 retval = buf.str (); |
| 4224 | 1042 else |
| 1043 { | |
| 1044 err = true; | |
| 4468 | 1045 |
| 4224 | 1046 if (is.eof () && char_count == 0) |
| 4468 | 1047 error (who, "at end of file"); |
| 4224 | 1048 else |
| 4468 | 1049 error (who, "read error"); |
| 4224 | 1050 } |
| 2117 | 1051 } |
| 1052 else | |
| 1053 { | |
| 1054 err = true; | |
| 4468 | 1055 invalid_operation (who, "reading"); |
| 2117 | 1056 } |
| 1057 | |
| 1058 return retval; | |
| 1059 } | |
| 1060 | |
| 3536 | 1061 std::string |
| 5275 | 1062 octave_base_stream::getl (octave_idx_type max_len, bool& err, const std::string& who) |
| 2117 | 1063 { |
| 4468 | 1064 return do_gets (max_len, err, true, who); |
| 2117 | 1065 } |
| 1066 | |
| 3536 | 1067 std::string |
| 5275 | 1068 octave_base_stream::gets (octave_idx_type max_len, bool& err, const std::string& who) |
| 2117 | 1069 { |
| 4468 | 1070 return do_gets (max_len, err, false, who); |
| 2117 | 1071 } |
| 1072 | |
| 9701 | 1073 long |
| 1074 octave_base_stream::skipl (long num, bool& err, const std::string& who) | |
| 1075 { | |
| 1076 long cnt = -1; | |
| 1077 | |
| 1078 if ((interactive || forced_interactive) && file_number () == 0) | |
| 1079 { | |
| 1080 ::error ("%s: unable to read from stdin while running interactively", | |
| 1081 who.c_str ()); | |
| 1082 | |
| 1083 return count; | |
| 1084 } | |
| 1085 | |
| 1086 err = false; | |
| 1087 | |
| 1088 std::istream *isp = input_stream (); | |
| 1089 | |
| 1090 if (isp) | |
| 1091 { | |
| 1092 std::istream& is = *isp; | |
| 1093 | |
| 1094 int c = 0, lastc = -1; | |
| 1095 cnt = 0; | |
| 1096 | |
| 1097 while (is && (c = is.get ()) != EOF) | |
| 1098 { | |
| 1099 // Handle CRLF, CR, or LF as line ending. | |
| 1100 | |
| 1101 if (c == '\r' || (c == '\n' && lastc != '\r')) | |
| 1102 { | |
| 1103 if (++cnt == num) | |
| 1104 break; | |
| 1105 } | |
| 1106 | |
| 1107 lastc = c; | |
| 1108 } | |
| 1109 | |
| 1110 // Maybe eat the following \n if \r was just met. | |
| 1111 if (c == '\r' && is.peek () == '\n') | |
| 1112 is.get (); | |
| 1113 | |
| 1114 if (is.bad ()) | |
| 1115 { | |
| 1116 err = true; | |
| 1117 error (who, "read error"); | |
| 1118 } | |
| 1119 | |
| 1120 if (err) | |
| 1121 cnt = -1; | |
| 1122 } | |
| 1123 else | |
| 1124 { | |
| 1125 err = true; | |
| 1126 invalid_operation (who, "reading"); | |
| 1127 } | |
| 1128 | |
| 1129 return cnt; | |
| 1130 } | |
| 1131 | |
| 3640 | 1132 #define OCTAVE_SCAN(is, fmt, arg) octave_scan (is, fmt, arg) |
| 3636 | 1133 |
| 1134 template <class T> | |
| 1135 std::istream& | |
| 6767 | 1136 octave_scan_1 (std::istream& is, const scanf_format_elt& fmt, T* valptr) |
| 3636 | 1137 { |
| 3779 | 1138 T& ref = *valptr; |
| 1139 | |
| 1140 switch (fmt.type) | |
| 1141 { | |
| 1142 case 'o': | |
| 4926 | 1143 is >> std::oct >> ref >> std::dec; |
| 3779 | 1144 break; |
| 1145 | |
| 1146 case 'x': | |
| 4926 | 1147 is >> std::hex >> ref >> std::dec; |
| 1148 break; | |
| 1149 | |
| 1150 case 'i': | |
| 1151 { | |
| 1152 int c1 = is.get (); | |
| 1153 | |
| 1154 if (! is.eof ()) | |
| 1155 { | |
| 1156 if (c1 == '0') | |
| 1157 { | |
|
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1158 int c2 = is.peek (); |
| 4926 | 1159 |
| 1160 if (c2 == 'x' || c2 == 'X') | |
|
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|
1161 { |
|
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|
1162 is.ignore (); |
|
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|
1163 if (std::isxdigit (is.peek ())) |
|
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|
1164 is >> std::hex >> ref >> std::dec; |
|
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1165 else |
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1166 ref = 0; |
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|
1167 } |
| 4926 | 1168 else |
| 4927 | 1169 { |
| 1170 if (c2 == '0' || c2 == '1' || c2 == '2' | |
| 1171 || c2 == '3' || c2 == '4' || c2 == '5' | |
| 1172 || c2 == '6' || c2 == '7') | |
| 1173 is >> std::oct >> ref >> std::dec; | |
| 1174 else | |
| 1175 ref = 0; | |
| 1176 } | |
| 4926 | 1177 } |
| 1178 else | |
| 1179 { | |
| 1180 is.putback (c1); | |
| 1181 | |
| 1182 is >> ref; | |
| 1183 } | |
| 1184 } | |
| 1185 } | |
| 3779 | 1186 break; |
| 1187 | |
| 1188 default: | |
| 1189 is >> ref; | |
| 1190 break; | |
| 1191 } | |
| 3639 | 1192 |
| 3638 | 1193 return is; |
| 3636 | 1194 } |
| 1195 | |
| 6767 | 1196 template <class T> |
| 1197 std::istream& | |
| 1198 octave_scan (std::istream& is, const scanf_format_elt& fmt, T* valptr) | |
| 1199 { | |
| 1200 if (fmt.width) | |
| 1201 { | |
| 1202 // Limit input to fmt.width characters by reading into a | |
| 1203 // temporary stringstream buffer. | |
| 1204 | |
| 1205 std::string tmp; | |
| 1206 | |
| 1207 is.width (fmt.width); | |
| 1208 is >> tmp; | |
| 1209 | |
| 1210 std::istringstream ss (tmp); | |
| 1211 | |
| 1212 octave_scan_1 (ss, fmt, valptr); | |
| 1213 } | |
| 1214 else | |
| 1215 octave_scan_1 (is, fmt, valptr); | |
| 1216 | |
| 1217 return is; | |
| 1218 } | |
| 1219 | |
| 3779 | 1220 // Note that this specialization is only used for reading characters, not |
| 1221 // character strings. See BEGIN_S_CONVERSION for details. | |
| 1222 | |
| 1223 template<> | |
| 1224 std::istream& | |
| 4661 | 1225 octave_scan<> (std::istream& is, const scanf_format_elt& /* fmt */, |
| 1226 char* valptr) | |
| 3779 | 1227 { |
| 1228 return is >> valptr; | |
| 1229 } | |
| 3636 | 1230 |
| 4595 | 1231 template std::istream& |
| 1232 octave_scan (std::istream&, const scanf_format_elt&, int*); | |
| 1233 | |
| 1234 template std::istream& | |
| 1235 octave_scan (std::istream&, const scanf_format_elt&, long int*); | |
| 1236 | |
| 1237 template std::istream& | |
| 1238 octave_scan (std::istream&, const scanf_format_elt&, short int*); | |
| 1239 | |
| 1240 template std::istream& | |
| 1241 octave_scan (std::istream&, const scanf_format_elt&, unsigned int*); | |
| 1242 | |
| 1243 template std::istream& | |
| 1244 octave_scan (std::istream&, const scanf_format_elt&, unsigned long int*); | |
| 1245 | |
| 1246 template std::istream& | |
| 1247 octave_scan (std::istream&, const scanf_format_elt&, unsigned short int*); | |
| 1248 | |
| 1249 #if 0 | |
| 1250 template std::istream& | |
| 1251 octave_scan (std::istream&, const scanf_format_elt&, float*); | |
| 1252 #endif | |
| 1253 | |
| 5403 | 1254 template<> |
| 5176 | 1255 std::istream& |
| 5403 | 1256 octave_scan<> (std::istream& is, const scanf_format_elt& fmt, double* valptr) |
| 5176 | 1257 { |
| 1258 double& ref = *valptr; | |
| 1259 | |
| 1260 switch (fmt.type) | |
| 1261 { | |
| 1262 case 'e': | |
| 1263 case 'f': | |
| 1264 case 'g': | |
| 1265 { | |
| 5259 | 1266 int c1 = EOF; |
| 5176 | 1267 |
| 1268 while (is && (c1 = is.get ()) != EOF && isspace (c1)) | |
| 1269 /* skip whitespace */; | |
| 1270 | |
| 1271 if (c1 != EOF) | |
| 1272 { | |
| 1273 if (c1 == 'N') | |
| 1274 { | |
| 1275 int c2 = is.get (); | |
| 1276 | |
| 1277 if (c2 != EOF) | |
| 1278 { | |
| 1279 if (c2 == 'A') | |
| 1280 { | |
| 1281 int c3 = is.get (); | |
| 1282 | |
| 1283 if (c3 != EOF) | |
| 1284 { | |
| 1285 is.putback (c3); | |
| 1286 | |
| 1287 if (isspace (c3) || ispunct (c3)) | |
| 1288 ref = octave_NA; | |
| 1289 else | |
| 1290 { | |
| 1291 is.putback (c2); | |
| 1292 is.putback (c1); | |
| 1293 | |
| 1294 is >> ref; | |
| 1295 } | |
| 1296 } | |
| 1297 else | |
| 1298 { | |
| 1299 is.clear (); | |
| 1300 | |
| 1301 ref = octave_NA; | |
| 1302 } | |
| 1303 } | |
| 1304 else if (c2 == 'a') | |
| 1305 { | |
| 1306 int c3 = is.get (); | |
| 1307 | |
| 1308 if (c3 != EOF) | |
| 1309 { | |
| 1310 if (c3 == 'N') | |
| 1311 { | |
| 1312 int c4 = is.get (); | |
| 1313 | |
| 1314 if (c4 != EOF) | |
| 1315 { | |
| 1316 is.putback (c4); | |
| 1317 | |
| 1318 if (isspace (c4) || ispunct (c4)) | |
| 1319 ref = octave_NaN; | |
| 1320 else | |
| 1321 { | |
| 1322 is.putback (c3); | |
| 1323 is.putback (c2); | |
| 1324 is.putback (c1); | |
| 1325 | |
| 1326 is >> ref; | |
| 1327 } | |
| 1328 } | |
| 1329 else | |
| 1330 { | |
| 1331 is.clear (); | |
| 1332 | |
| 1333 ref = octave_NaN; | |
| 1334 } | |
| 1335 } | |
| 1336 else | |
| 1337 { | |
| 1338 is.putback (c3); | |
| 1339 is.putback (c2); | |
| 1340 is.putback (c1); | |
| 1341 | |
| 1342 is >> ref; | |
| 1343 } | |
| 1344 } | |
| 1345 } | |
| 1346 else | |
| 1347 { | |
| 1348 is.putback (c2); | |
| 1349 is.putback (c1); | |
| 1350 | |
| 1351 is >> ref; | |
| 1352 } | |
| 1353 } | |
| 1354 } | |
| 1355 else if (c1 == 'I') | |
| 1356 { | |
| 1357 int c2 = is.get (); | |
| 1358 | |
| 1359 if (c2 != EOF) | |
| 1360 { | |
| 1361 if (c2 == 'n') | |
| 1362 { | |
| 1363 int c3 = is.get (); | |
| 1364 | |
| 1365 if (c3 != EOF) | |
| 6483 | 1366 { |
| 1367 if (c3 == 'f') | |
| 1368 { | |
| 1369 int c4 = is.get (); | |
| 1370 | |
| 1371 if (c4 != EOF) | |
| 1372 { | |
| 1373 is.putback (c4); | |
| 1374 | |
| 1375 if (isspace (c4) || ispunct (c4)) | |
| 1376 ref = octave_Inf; | |
| 1377 else | |
| 1378 { | |
| 1379 is.putback (c3); | |
| 1380 is.putback (c2); | |
| 1381 is.putback (c1); | |
| 1382 | |
| 1383 is >> ref; | |
| 1384 } | |
| 1385 } | |
| 1386 else | |
| 1387 { | |
| 1388 is.clear (); | |
| 1389 | |
| 5176 | 1390 ref = octave_Inf; |
| 6483 | 1391 } |
| 1392 } | |
| 1393 else | |
| 1394 { | |
| 1395 is.putback (c3); | |
| 1396 is.putback (c2); | |
| 1397 is.putback (c1); | |
| 1398 | |
| 1399 is >> ref; | |
| 1400 } | |
| 1401 } | |
| 1402 else | |
| 1403 { | |
| 1404 is.putback (c2); | |
| 1405 is.putback (c1); | |
| 1406 | |
| 1407 is >> ref; | |
| 1408 } | |
| 5176 | 1409 } |
| 1410 } | |
| 1411 } | |
| 1412 else | |
| 1413 { | |
| 1414 is.putback (c1); | |
| 1415 | |
| 1416 is >> ref; | |
| 1417 } | |
| 1418 } | |
| 1419 } | |
| 1420 break; | |
| 1421 | |
| 1422 default: | |
| 1423 panic_impossible (); | |
| 1424 break; | |
| 1425 } | |
| 1426 | |
| 1427 return is; | |
| 1428 } | |
| 1429 | |
| 2572 | 1430 template <class T> |
| 1431 void | |
| 3636 | 1432 do_scanf_conv (std::istream& is, const scanf_format_elt& fmt, |
| 5275 | 1433 T valptr, Matrix& mval, double *data, octave_idx_type& idx, |
| 1434 octave_idx_type& conversion_count, octave_idx_type nr, octave_idx_type max_size, | |
| 3636 | 1435 bool discard) |
| 2572 | 1436 { |
| 3640 | 1437 OCTAVE_SCAN (is, fmt, valptr); |
| 2572 | 1438 |
| 1439 if (is) | |
| 1440 { | |
| 1441 if (idx == max_size && ! discard) | |
| 1442 { | |
| 1443 max_size *= 2; | |
| 1444 | |
| 1445 if (nr > 0) | |
| 1446 mval.resize (nr, max_size / nr, 0.0); | |
| 1447 else | |
| 1448 mval.resize (max_size, 1, 0.0); | |
| 1449 | |
| 1450 data = mval.fortran_vec (); | |
| 1451 } | |
| 1452 | |
| 1453 if (! discard) | |
| 3268 | 1454 { |
| 3559 | 1455 conversion_count++; |
| 3268 | 1456 data[idx++] = *(valptr); |
| 1457 } | |
| 2572 | 1458 } |
| 1459 } | |
| 1460 | |
| 1461 template void | |
| 3878 | 1462 do_scanf_conv (std::istream&, const scanf_format_elt&, int*, |
| 5275 | 1463 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 2572 | 1464 |
| 3233 | 1465 template void |
| 3636 | 1466 do_scanf_conv (std::istream&, const scanf_format_elt&, long int*, |
| 5275 | 1467 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3233 | 1468 |
| 1469 template void | |
| 3636 | 1470 do_scanf_conv (std::istream&, const scanf_format_elt&, short int*, |
| 5275 | 1471 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3233 | 1472 |
| 3878 | 1473 template void |
| 1474 do_scanf_conv (std::istream&, const scanf_format_elt&, unsigned int*, | |
| 5275 | 1475 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3878 | 1476 |
| 1477 template void | |
| 1478 do_scanf_conv (std::istream&, const scanf_format_elt&, unsigned long int*, | |
| 5275 | 1479 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3878 | 1480 |
| 1481 template void | |
| 1482 do_scanf_conv (std::istream&, const scanf_format_elt&, unsigned short int*, | |
| 5275 | 1483 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3878 | 1484 |
| 2600 | 1485 #if 0 |
| 2572 | 1486 template void |
| 3636 | 1487 do_scanf_conv (std::istream&, const scanf_format_elt&, float*, |
| 5275 | 1488 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 2600 | 1489 #endif |
| 2572 | 1490 |
| 1491 template void | |
| 3636 | 1492 do_scanf_conv (std::istream&, const scanf_format_elt&, double*, |
| 5275 | 1493 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 2572 | 1494 |
| 3483 | 1495 #define DO_WHITESPACE_CONVERSION() \ |
| 1496 do \ | |
| 1497 { \ | |
| 1498 int c = EOF; \ | |
| 1499 \ | |
| 1500 while (is && (c = is.get ()) != EOF && isspace (c)) \ | |
| 1501 /* skip whitespace */; \ | |
| 1502 \ | |
| 1503 if (c != EOF) \ | |
| 1504 is.putback (c); \ | |
| 1505 } \ | |
| 1506 while (0) | |
| 1507 | |
| 1508 #define DO_LITERAL_CONVERSION() \ | |
| 1509 do \ | |
| 1510 { \ | |
| 1511 int c = EOF; \ | |
| 1512 \ | |
| 1513 int n = strlen (fmt); \ | |
| 1514 int i = 0; \ | |
| 1515 \ | |
| 1516 while (i < n && is && (c = is.get ()) != EOF) \ | |
| 1517 { \ | |
| 5326 | 1518 if (c == static_cast<unsigned char> (fmt[i])) \ |
| 3483 | 1519 { \ |
| 1520 i++; \ | |
| 1521 continue; \ | |
| 1522 } \ | |
| 1523 else \ | |
| 1524 { \ | |
| 1525 is.putback (c); \ | |
| 1526 break; \ | |
| 1527 } \ | |
| 1528 } \ | |
| 1529 \ | |
| 1530 if (i != n) \ | |
| 3538 | 1531 is.setstate (std::ios::failbit); \ |
| 3483 | 1532 } \ |
| 1533 while (0) | |
| 1534 | |
| 3640 | 1535 #define DO_PCT_CONVERSION() \ |
| 1536 do \ | |
| 1537 { \ | |
| 1538 int c = is.get (); \ | |
| 1539 \ | |
| 1540 if (c != EOF) \ | |
| 1541 { \ | |
| 1542 if (c != '%') \ | |
| 1543 { \ | |
| 1544 is.putback (c); \ | |
| 1545 is.setstate (std::ios::failbit); \ | |
| 1546 } \ | |
| 1547 } \ | |
| 1548 else \ | |
| 1549 is.setstate (std::ios::failbit); \ | |
| 1550 } \ | |
| 1551 while (0) | |
| 1552 | |
| 3483 | 1553 #define BEGIN_C_CONVERSION() \ |
| 3538 | 1554 is.unsetf (std::ios::skipws); \ |
| 3483 | 1555 \ |
| 1556 int width = elt->width ? elt->width : 1; \ | |
| 1557 \ | |
|
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parents:
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diff
changeset
|
1558 std::string tmp (width, '\0'); \ |
| 3483 | 1559 \ |
| 1560 int c = EOF; \ | |
| 1561 int n = 0; \ | |
| 1562 \ | |
| 1563 while (is && n < width && (c = is.get ()) != EOF) \ | |
|
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changeset
|
1564 tmp[n++] = static_cast<char> (c); \ |
| 3483 | 1565 \ |
| 5266 | 1566 if (n > 0 && c == EOF) \ |
|
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changeset
|
1567 is.clear () |
| 3483 | 1568 |
| 1569 // For a `%s' format, skip initial whitespace and then read until the | |
| 5338 | 1570 // next whitespace character or until WIDTH characters have been read. |
| 3483 | 1571 #define BEGIN_S_CONVERSION() \ |
| 1572 int width = elt->width; \ | |
| 1573 \ | |
| 4051 | 1574 std::string tmp; \ |
| 3483 | 1575 \ |
| 1576 do \ | |
| 1577 { \ | |
| 1578 if (width) \ | |
| 5338 | 1579 { \ |
| 10076 | 1580 tmp = std::string (width, '\0'); \ |
| 5338 | 1581 \ |
| 1582 int c = EOF; \ | |
| 1583 \ | |
| 1584 int n = 0; \ | |
| 1585 \ | |
| 1586 while (is && (c = is.get ()) != EOF) \ | |
| 1587 { \ | |
| 1588 if (! isspace (c)) \ | |
| 1589 { \ | |
|
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changeset
|
1590 tmp[n++] = static_cast<char> (c); \ |
| 5338 | 1591 break; \ |
| 1592 } \ | |
| 1593 } \ | |
| 4051 | 1594 \ |
| 5338 | 1595 while (is && n < width && (c = is.get ()) != EOF) \ |
| 1596 { \ | |
| 1597 if (isspace (c)) \ | |
| 1598 { \ | |
| 1599 is.putback (c); \ | |
| 1600 break; \ | |
| 1601 } \ | |
| 1602 else \ | |
|
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|
1603 tmp[n++] = static_cast<char> (c); \ |
| 5338 | 1604 } \ |
| 3483 | 1605 \ |
| 5338 | 1606 if (n > 0 && c == EOF) \ |
| 1607 is.clear (); \ | |
| 1608 \ | |
|
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|
1609 tmp.resize (n); \ |
| 5338 | 1610 } \ |
| 3483 | 1611 else \ |
| 5338 | 1612 { \ |
| 1613 is >> std::ws >> tmp; \ | |
| 1614 } \ | |
| 3483 | 1615 } \ |
| 1616 while (0) | |
| 1617 | |
| 1618 // This format must match a nonempty sequence of characters. | |
| 1619 #define BEGIN_CHAR_CLASS_CONVERSION() \ | |
| 1620 int width = elt->width; \ | |
| 1621 \ | |
| 4051 | 1622 std::string tmp; \ |
| 3483 | 1623 \ |
| 1624 do \ | |
| 1625 { \ | |
| 7426 | 1626 if (! width) \ |
| 7427 | 1627 width = INT_MAX; \ |
| 1628 \ | |
| 7426 | 1629 std::ostringstream buf; \ |
| 1630 \ | |
| 1631 std::string char_class = elt->char_class; \ | |
| 4051 | 1632 \ |
| 7426 | 1633 int c = EOF; \ |
| 3483 | 1634 \ |
| 7426 | 1635 if (elt->type == '[') \ |
| 1636 { \ | |
| 1637 int chars_read = 0; \ | |
| 1638 while (is && chars_read++ < width && (c = is.get ()) != EOF \ | |
| 8021 | 1639 && char_class.find (c) != std::string::npos) \ |
| 7426 | 1640 buf << static_cast<char> (c); \ |
| 3483 | 1641 } \ |
| 1642 else \ | |
| 1643 { \ | |
| 7426 | 1644 int chars_read = 0; \ |
| 1645 while (is && chars_read++ < width && (c = is.get ()) != EOF \ | |
| 8021 | 1646 && char_class.find (c) == std::string::npos) \ |
| 7426 | 1647 buf << static_cast<char> (c); \ |
| 1648 } \ | |
| 3483 | 1649 \ |
| 7426 | 1650 if (width == INT_MAX && c != EOF) \ |
| 1651 is.putback (c); \ | |
| 3483 | 1652 \ |
| 7426 | 1653 tmp = buf.str (); \ |
| 3483 | 1654 \ |
| 7426 | 1655 if (tmp.empty ()) \ |
| 1656 is.setstate (std::ios::failbit); \ | |
| 3483 | 1657 } \ |
| 1658 while (0) | |
| 1659 | |
| 3410 | 1660 #define FINISH_CHARACTER_CONVERSION() \ |
| 1661 do \ | |
| 1662 { \ | |
| 4051 | 1663 width = tmp.length (); \ |
| 3410 | 1664 \ |
| 1665 if (is) \ | |
| 1666 { \ | |
| 1667 int i = 0; \ | |
| 1668 \ | |
| 1669 if (! discard) \ | |
| 1670 { \ | |
| 1671 conversion_count++; \ | |
| 1672 \ | |
|
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|
1673 while (i < width) \ |
| 3410 | 1674 { \ |
| 1675 if (data_index == max_size) \ | |
| 1676 { \ | |
| 1677 max_size *= 2; \ | |
| 1678 \ | |
| 4420 | 1679 if (all_char_conv) \ |
| 3410 | 1680 { \ |
| 4420 | 1681 if (one_elt_size_spec) \ |
| 3410 | 1682 mval.resize (1, max_size, 0.0); \ |
| 4420 | 1683 else if (nr > 0) \ |
| 1684 mval.resize (nr, max_size / nr, 0.0); \ | |
| 3410 | 1685 else \ |
| 4420 | 1686 panic_impossible (); \ |
| 3410 | 1687 } \ |
| 4420 | 1688 else if (nr > 0) \ |
| 6970 | 1689 mval.resize (nr, max_size / nr, 0.0); \ |
| 4420 | 1690 else \ |
| 1691 mval.resize (max_size, 1, 0.0); \ | |
| 3410 | 1692 \ |
| 1693 data = mval.fortran_vec (); \ | |
| 1694 } \ | |
| 1695 \ | |
| 1696 data[data_index++] = tmp[i++]; \ | |
| 1697 } \ | |
| 1698 } \ | |
| 1699 } \ | |
| 1700 } \ | |
| 1701 while (0) | |
| 2117 | 1702 |
| 1703 octave_value | |
| 1704 octave_base_stream::do_scanf (scanf_format_list& fmt_list, | |
| 5275 | 1705 octave_idx_type nr, octave_idx_type nc, bool one_elt_size_spec, |
| 1706 octave_idx_type& conversion_count, const std::string& who) | |
| 2117 | 1707 { |
|
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|
1708 octave_value retval = Matrix (); |
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1709 |
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1710 if ((interactive || forced_interactive) && file_number () == 0) |
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1711 { |
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|
1712 ::error ("%s: unable to read from stdin while running interactively", |
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|
1713 who.c_str ()); |
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1714 |
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|
1715 return retval; |
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|
1716 } |
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|
1717 |
| 3268 | 1718 conversion_count = 0; |
| 1719 | |
| 3640 | 1720 int nconv = fmt_list.num_conversions (); |
| 1721 | |
| 5275 | 1722 octave_idx_type data_index = 0; |
| 2121 | 1723 |
| 3268 | 1724 if (nr == 0 || nc == 0) |
| 1725 { | |
| 1726 if (one_elt_size_spec) | |
| 1727 nc = 0; | |
| 1728 | |
| 1729 return Matrix (nr, nc, 0.0); | |
| 1730 } | |
| 1731 | |
| 3523 | 1732 std::istream *isp = input_stream (); |
| 2117 | 1733 |
| 1734 bool all_char_conv = fmt_list.all_character_conversions (); | |
| 1735 | |
| 1736 Matrix mval; | |
| 1737 double *data = 0; | |
| 5275 | 1738 octave_idx_type max_size = 0; |
| 1739 octave_idx_type max_conv = 0; | |
| 1740 | |
| 1741 octave_idx_type final_nr = 0; | |
| 1742 octave_idx_type final_nc = 0; | |
| 2117 | 1743 |
| 3268 | 1744 if (all_char_conv) |
| 1745 { | |
| 4420 | 1746 // Any of these could be resized later (if we have %s |
| 1747 // conversions, we may read more than one element for each | |
| 1748 // conversion). | |
| 1749 | |
| 3268 | 1750 if (one_elt_size_spec) |
| 1751 { | |
| 3410 | 1752 max_size = 512; |
| 1753 mval.resize (1, max_size, 0.0); | |
| 1754 | |
| 3268 | 1755 if (nr > 0) |
| 1756 max_conv = nr; | |
| 1757 } | |
| 4420 | 1758 else if (nr > 0) |
| 3268 | 1759 { |
| 4420 | 1760 if (nc > 0) |
| 1761 { | |
| 1762 mval.resize (nr, nc, 0.0); | |
| 1763 max_size = max_conv = nr * nc; | |
| 1764 } | |
| 1765 else | |
| 1766 { | |
| 1767 mval.resize (nr, 32, 0.0); | |
| 1768 max_size = nr * 32; | |
| 1769 } | |
| 3268 | 1770 } |
| 4420 | 1771 else |
| 1772 panic_impossible (); | |
| 3268 | 1773 } |
| 1774 else if (nr > 0) | |
| 2117 | 1775 { |
| 1776 if (nc > 0) | |
| 1777 { | |
| 4420 | 1778 // Will not resize later. |
| 2117 | 1779 mval.resize (nr, nc, 0.0); |
| 1780 max_size = nr * nc; | |
| 3268 | 1781 max_conv = max_size; |
| 2117 | 1782 } |
| 1783 else | |
| 1784 { | |
| 4420 | 1785 // Maybe resize later. |
| 2117 | 1786 mval.resize (nr, 32, 0.0); |
| 2121 | 1787 max_size = nr * 32; |
| 2117 | 1788 } |
| 1789 } | |
| 1790 else | |
| 1791 { | |
| 4420 | 1792 // Maybe resize later. |
| 2117 | 1793 mval.resize (32, 1, 0.0); |
| 1794 max_size = 32; | |
| 1795 } | |
| 1796 | |
| 4420 | 1797 data = mval.fortran_vec (); |
| 1798 | |
| 2117 | 1799 if (isp) |
| 1800 { | |
| 3523 | 1801 std::istream& is = *isp; |
| 2117 | 1802 |
| 1803 const scanf_format_elt *elt = fmt_list.first (); | |
| 1804 | |
| 3538 | 1805 std::ios::fmtflags flags = is.flags (); |
| 2213 | 1806 |
| 2117 | 1807 for (;;) |
| 1808 { | |
|
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|
1809 octave_quit (); |
| 4153 | 1810 |
| 2117 | 1811 if (elt) |
| 1812 { | |
| 3268 | 1813 if (max_conv > 0 && conversion_count == max_conv) |
| 1814 { | |
| 1815 if (all_char_conv && one_elt_size_spec) | |
| 1816 { | |
| 1817 final_nr = 1; | |
| 1818 final_nc = data_index; | |
| 1819 } | |
| 1820 else | |
| 1821 { | |
| 1822 final_nr = nr; | |
| 1823 final_nc = (data_index - 1) / nr + 1; | |
| 1824 } | |
| 1825 | |
| 1826 break; | |
| 1827 } | |
| 1828 else if (data_index == max_size) | |
| 2117 | 1829 { |
| 3410 | 1830 max_size *= 2; |
| 1831 | |
| 4420 | 1832 if (all_char_conv) |
| 2687 | 1833 { |
| 4420 | 1834 if (one_elt_size_spec) |
| 3410 | 1835 mval.resize (1, max_size, 0.0); |
| 4420 | 1836 else if (nr > 0) |
| 1837 mval.resize (nr, max_size / nr, 0.0); | |
| 3410 | 1838 else |
| 4420 | 1839 panic_impossible (); |
| 2687 | 1840 } |
| 4420 | 1841 else if (nr > 0) |
| 6970 | 1842 mval.resize (nr, max_size / nr, 0.0); |
| 4420 | 1843 else |
| 1844 mval.resize (max_size, 1, 0.0); | |
| 3410 | 1845 |
| 1846 data = mval.fortran_vec (); | |
| 2117 | 1847 } |
| 1848 | |
| 1849 const char *fmt = elt->text; | |
| 1850 | |
| 1851 bool discard = elt->discard; | |
| 1852 | |
| 1853 switch (elt->type) | |
| 1854 { | |
| 3483 | 1855 case scanf_format_elt::whitespace_conversion: |
| 1856 DO_WHITESPACE_CONVERSION (); | |
| 1857 break; | |
| 1858 | |
| 1859 case scanf_format_elt::literal_conversion: | |
| 1860 DO_LITERAL_CONVERSION (); | |
| 1861 break; | |
| 1862 | |
| 2117 | 1863 case '%': |
| 3640 | 1864 DO_PCT_CONVERSION (); |
| 3483 | 1865 break; |
| 2117 | 1866 |
| 3878 | 1867 case 'd': case 'i': |
| 2117 | 1868 { |
| 3233 | 1869 switch (elt->modifier) |
| 1870 { | |
| 1871 case 'h': | |
| 1872 { | |
| 1873 short int tmp; | |
| 3779 | 1874 do_scanf_conv (is, *elt, &tmp, mval, data, |
| 3268 | 1875 data_index, conversion_count, |
| 3233 | 1876 nr, max_size, discard); |
| 1877 } | |
| 3483 | 1878 break; |
| 3233 | 1879 |
| 1880 case 'l': | |
| 1881 { | |
| 1882 long int tmp; | |
| 3779 | 1883 do_scanf_conv (is, *elt, &tmp, mval, data, |
| 3268 | 1884 data_index, conversion_count, |
| 3233 | 1885 nr, max_size, discard); |
| 1886 } | |
| 3483 | 1887 break; |
| 3233 | 1888 |
| 1889 default: | |
| 1890 { | |
| 1891 int tmp; | |
| 3779 | 1892 do_scanf_conv (is, *elt, &tmp, mval, data, |
| 3268 | 1893 data_index, conversion_count, |
| 3233 | 1894 nr, max_size, discard); |
| 1895 } | |
| 3483 | 1896 break; |
| 3233 | 1897 } |
| 2117 | 1898 } |
| 3483 | 1899 break; |
| 2117 | 1900 |
| 3878 | 1901 case 'o': case 'u': case 'x': |
| 1902 { | |
| 1903 switch (elt->modifier) | |
| 1904 { | |
| 1905 case 'h': | |
| 1906 { | |
| 1907 unsigned short int tmp; | |
| 1908 do_scanf_conv (is, *elt, &tmp, mval, data, | |
| 1909 data_index, conversion_count, | |
| 1910 nr, max_size, discard); | |
| 1911 } | |
| 1912 break; | |
| 1913 | |
| 1914 case 'l': | |
| 1915 { | |
| 1916 unsigned long int tmp; | |
| 1917 do_scanf_conv (is, *elt, &tmp, mval, data, | |
| 1918 data_index, conversion_count, | |
| 1919 nr, max_size, discard); | |
| 1920 } | |
| 1921 break; | |
| 1922 | |
| 1923 default: | |
| 1924 { | |
| 1925 unsigned int tmp; | |
| 1926 do_scanf_conv (is, *elt, &tmp, mval, data, | |
| 1927 data_index, conversion_count, | |
| 1928 nr, max_size, discard); | |
| 1929 } | |
| 1930 break; | |
| 1931 } | |
| 1932 } | |
| 1933 break; | |
| 1934 | |
| 2117 | 1935 case 'e': case 'f': case 'g': |
| 1936 { | |
| 2600 | 1937 double tmp; |
| 1938 | |
| 3779 | 1939 do_scanf_conv (is, *elt, &tmp, mval, data, |
| 3268 | 1940 data_index, conversion_count, |
| 2600 | 1941 nr, max_size, discard); |
| 2117 | 1942 } |
| 3483 | 1943 break; |
| 2117 | 1944 |
| 2213 | 1945 case 'c': |
| 3410 | 1946 { |
| 3483 | 1947 BEGIN_C_CONVERSION (); |
| 3410 | 1948 |
| 1949 FINISH_CHARACTER_CONVERSION (); | |
| 3483 | 1950 |
| 1951 is.setf (flags); | |
| 3410 | 1952 } |
| 1953 break; | |
| 2213 | 1954 |
| 2117 | 1955 case 's': |
| 1956 { | |
| 3483 | 1957 BEGIN_S_CONVERSION (); |
| 3268 | 1958 |
| 3410 | 1959 FINISH_CHARACTER_CONVERSION (); |
| 2117 | 1960 } |
| 3483 | 1961 break; |
| 1962 | |
| 1963 case '[': case '^': | |
| 1964 { | |
| 1965 BEGIN_CHAR_CLASS_CONVERSION (); | |
| 1966 | |
| 1967 FINISH_CHARACTER_CONVERSION (); | |
| 1968 } | |
| 1969 break; | |
| 1970 | |
| 1971 case 'p': | |
| 4468 | 1972 error ("%s: unsupported format specifier", who.c_str ()); |
| 2117 | 1973 break; |
| 1974 | |
| 1975 default: | |
| 4468 | 1976 error ("%s: internal format error", who.c_str ()); |
| 2117 | 1977 break; |
| 1978 } | |
| 1979 | |
| 1980 if (! ok ()) | |
| 1981 { | |
| 1982 break; | |
| 1983 } | |
| 1984 else if (! is) | |
| 1985 { | |
| 3268 | 1986 if (all_char_conv) |
| 2117 | 1987 { |
| 3268 | 1988 if (one_elt_size_spec) |
| 1989 { | |
| 1990 final_nr = 1; | |
| 1991 final_nc = data_index; | |
| 1992 } | |
| 1993 else if (data_index > nr) | |
| 2117 | 1994 { |
| 2759 | 1995 final_nr = nr; |
| 3268 | 1996 final_nc = (data_index - 1) / nr + 1; |
| 2117 | 1997 } |
| 1998 else | |
| 1999 { | |
| 3268 | 2000 final_nr = data_index; |
| 2001 final_nc = 1; | |
| 2002 } | |
| 2003 } | |
| 2004 else if (nr > 0) | |
| 2005 { | |
| 2006 if (data_index > nr) | |
| 2007 { | |
| 2008 final_nr = nr; | |
| 2009 final_nc = (data_index - 1) / nr + 1; | |
| 2010 } | |
| 2011 else | |
| 2012 { | |
| 2013 final_nr = data_index; | |
| 2117 | 2014 final_nc = 1; |
| 2015 } | |
| 2016 } | |
| 2017 else | |
| 2018 { | |
| 3268 | 2019 final_nr = data_index; |
| 2759 | 2020 final_nc = 1; |
| 2021 } | |
| 2022 | |
| 3337 | 2023 // If it looks like we have a matching failure, then |
| 2024 // reset the failbit in the stream state. | |
| 2025 | |
| 3538 | 2026 if (is.rdstate () & std::ios::failbit) |
| 2027 is.clear (is.rdstate () & (~std::ios::failbit)); | |
| 3337 | 2028 |
| 5775 | 2029 // FIXME -- is this the right thing to do? |
| 3342 | 2030 |
| 2031 if (interactive && name () == "stdin") | |
| 2759 | 2032 { |
| 2033 is.clear (); | |
| 2034 | |
| 2035 // Skip to end of line. | |
| 2036 | |
| 2037 bool err; | |
| 4468 | 2038 do_gets (-1, err, false, who); |
| 2117 | 2039 } |
| 2040 | |
| 2041 break; | |
| 2042 } | |
| 2043 } | |
| 2044 else | |
| 2045 { | |
| 4468 | 2046 error ("%s: internal format error", who.c_str ()); |
| 2117 | 2047 break; |
| 2048 } | |
| 2049 | |
| 3640 | 2050 elt = fmt_list.next (nconv > 0); |
| 2117 | 2051 } |
| 2052 } | |
| 2053 | |
| 2054 if (ok ()) | |
| 2055 { | |
| 2121 | 2056 mval.resize (final_nr, final_nc, 0.0); |
| 2117 | 2057 |
| 3268 | 2058 retval = mval; |
| 2059 | |
| 2117 | 2060 if (all_char_conv) |
| 5279 | 2061 retval = retval.convert_to_str (false, true); |
| 2117 | 2062 } |
| 2063 | |
| 2064 return retval; | |
| 2065 } | |
| 2066 | |
| 2067 octave_value | |
| 3810 | 2068 octave_base_stream::scanf (const std::string& fmt, const Array<double>& size, |
| 5275 | 2069 octave_idx_type& conversion_count, const std::string& who) |
| 2117 | 2070 { |
| 2071 octave_value retval = Matrix (); | |
| 2072 | |
| 3559 | 2073 conversion_count = 0; |
| 2117 | 2074 |
| 3523 | 2075 std::istream *isp = input_stream (); |
| 2117 | 2076 |
| 2077 if (isp) | |
| 2078 { | |
| 2079 scanf_format_list fmt_list (fmt); | |
| 2080 | |
| 3640 | 2081 if (fmt_list.num_conversions () == -1) |
| 4468 | 2082 ::error ("%s: invalid format specified", who.c_str ()); |
| 3640 | 2083 else |
| 2117 | 2084 { |
| 5275 | 2085 octave_idx_type nr = -1; |
| 2086 octave_idx_type nc = -1; | |
| 3640 | 2087 |
| 2088 bool one_elt_size_spec; | |
| 2089 | |
| 4468 | 2090 get_size (size, nr, nc, one_elt_size_spec, who); |
| 3640 | 2091 |
| 2092 if (! error_state) | |
| 2093 retval = do_scanf (fmt_list, nr, nc, one_elt_size_spec, | |
| 4468 | 2094 conversion_count, who); |
| 2215 | 2095 } |
| 2096 } | |
| 2097 else | |
| 4468 | 2098 invalid_operation (who, "reading"); |
| 2572 | 2099 |
| 2100 return retval; | |
| 2101 } | |
| 2102 | |
| 2712 | 2103 bool |
| 2104 octave_base_stream::do_oscanf (const scanf_format_elt *elt, | |
| 4468 | 2105 octave_value& retval, const std::string& who) |
| 2572 | 2106 { |
| 2712 | 2107 bool quit = false; |
| 2215 | 2108 |
| 3523 | 2109 std::istream *isp = input_stream (); |
| 2215 | 2110 |
| 2111 if (isp) | |
| 2112 { | |
| 3523 | 2113 std::istream& is = *isp; |
| 2215 | 2114 |
| 3538 | 2115 std::ios::fmtflags flags = is.flags (); |
| 2215 | 2116 |
| 2117 if (elt) | |
| 2118 { | |
| 2119 const char *fmt = elt->text; | |
| 2120 | |
| 2121 bool discard = elt->discard; | |
| 2122 | |
| 2123 switch (elt->type) | |
| 2124 { | |
| 3483 | 2125 case scanf_format_elt::whitespace_conversion: |
| 2126 DO_WHITESPACE_CONVERSION (); | |
| 2127 break; | |
| 2128 | |
| 2129 case scanf_format_elt::literal_conversion: | |
| 2130 DO_LITERAL_CONVERSION (); | |
| 2131 break; | |
| 2132 | |
| 2215 | 2133 case '%': |
| 2134 { | |
| 3640 | 2135 DO_PCT_CONVERSION (); |
| 2136 | |
| 2137 if (! is) | |
| 2712 | 2138 quit = true; |
| 3640 | 2139 |
| 2215 | 2140 } |
| 2141 break; | |
| 2142 | |
| 3878 | 2143 case 'd': case 'i': |
| 2215 | 2144 { |
| 2145 int tmp; | |
| 2146 | |
| 3640 | 2147 if (OCTAVE_SCAN (is, *elt, &tmp)) |
| 2712 | 2148 { |
| 2149 if (! discard) | |
| 4233 | 2150 retval = tmp; |
| 2712 | 2151 } |
| 2152 else | |
| 2153 quit = true; | |
| 2215 | 2154 } |
| 2155 break; | |
| 2156 | |
| 3878 | 2157 case 'o': case 'u': case 'x': |
| 2158 { | |
| 2159 long int tmp; | |
| 2160 | |
| 2161 if (OCTAVE_SCAN (is, *elt, &tmp)) | |
| 2162 { | |
| 2163 if (! discard) | |
| 4254 | 2164 retval = tmp; |
| 3878 | 2165 } |
| 2166 else | |
| 2167 quit = true; | |
| 2168 } | |
| 2169 break; | |
| 2170 | |
| 2215 | 2171 case 'e': case 'f': case 'g': |
| 2172 { | |
| 2600 | 2173 double tmp; |
| 2174 | |
| 3640 | 2175 if (OCTAVE_SCAN (is, *elt, &tmp)) |
| 2712 | 2176 { |
| 2177 if (! discard) | |
| 2178 retval = tmp; | |
| 2179 } | |
| 2180 else | |
| 2181 quit = true; | |
| 2215 | 2182 } |
| 2183 break; | |
| 2184 | |
| 2185 case 'c': | |
| 2186 { | |
| 3483 | 2187 BEGIN_C_CONVERSION (); |
| 2188 | |
| 2189 if (! discard) | |
| 2190 retval = tmp; | |
| 2191 | |
| 2192 if (! is) | |
| 2712 | 2193 quit = true; |
| 2215 | 2194 |
| 2195 is.setf (flags); | |
| 2196 } | |
| 2197 break; | |
| 2198 | |
| 2199 case 's': | |
| 2200 { | |
| 3483 | 2201 BEGIN_S_CONVERSION (); |
| 2202 | |
| 2203 if (! discard) | |
| 2204 retval = tmp; | |
| 2572 | 2205 |
| 3268 | 2206 if (! is) |
| 2207 quit = true; | |
| 2215 | 2208 } |
| 2209 break; | |
| 2210 | |
| 3483 | 2211 case '[': case '^': |
| 2212 { | |
| 2213 BEGIN_CHAR_CLASS_CONVERSION (); | |
| 2214 | |
| 2215 if (! discard) | |
| 2216 retval = tmp; | |
| 2217 | |
| 2218 if (! is) | |
| 2219 quit = true; | |
| 2220 } | |
| 2221 break; | |
| 2222 | |
| 2223 case 'p': | |
| 4468 | 2224 error ("%s: unsupported format specifier", who.c_str ()); |
| 2215 | 2225 break; |
| 2226 | |
| 2227 default: | |
| 4468 | 2228 error ("%s: internal format error", who.c_str ()); |
| 2215 | 2229 break; |
| 2230 } | |
| 2231 } | |
| 2232 | |
| 2233 if (ok () && is.fail ()) | |
| 2234 { | |
| 4468 | 2235 error ("%s: read error", who.c_str ()); |
| 3483 | 2236 |
| 5775 | 2237 // FIXME -- is this the right thing to do? |
| 3342 | 2238 |
| 2239 if (interactive && name () == "stdin") | |
| 2215 | 2240 { |
| 2241 // Skip to end of line. | |
| 2242 | |
| 2243 bool err; | |
| 4468 | 2244 do_gets (-1, err, false, who); |
| 2215 | 2245 } |
| 2246 } | |
| 2247 } | |
| 2248 | |
| 2712 | 2249 return quit; |
| 2215 | 2250 } |
| 2251 | |
| 2252 octave_value_list | |
| 4468 | 2253 octave_base_stream::oscanf (const std::string& fmt, const std::string& who) |
| 2215 | 2254 { |
| 2255 octave_value_list retval; | |
| 2256 | |
| 3523 | 2257 std::istream *isp = input_stream (); |
| 2215 | 2258 |
| 2259 if (isp) | |
| 2260 { | |
| 3523 | 2261 std::istream& is = *isp; |
| 2215 | 2262 |
| 2263 scanf_format_list fmt_list (fmt); | |
| 2264 | |
| 2265 int nconv = fmt_list.num_conversions (); | |
| 2266 | |
| 3640 | 2267 if (nconv == -1) |
| 4468 | 2268 ::error ("%s: invalid format specified", who.c_str ()); |
| 3640 | 2269 else |
| 2215 | 2270 { |
| 3640 | 2271 is.clear (); |
| 2272 | |
| 2273 int len = fmt_list.length (); | |
| 2274 | |
| 2275 retval.resize (nconv+1, Matrix ()); | |
| 2276 | |
| 2277 const scanf_format_elt *elt = fmt_list.first (); | |
| 2278 | |
| 2279 int num_values = 0; | |
| 2280 | |
| 2281 bool quit = false; | |
| 2282 | |
| 5275 | 2283 for (octave_idx_type i = 0; i < len; i++) |
| 3640 | 2284 { |
| 2285 octave_value tmp; | |
| 2286 | |
| 4468 | 2287 quit = do_oscanf (elt, tmp, who); |
| 3640 | 2288 |
| 2289 if (quit) | |
| 2290 break; | |
| 2291 else | |
| 2292 { | |
| 2293 if (tmp.is_defined ()) | |
| 2294 retval (num_values++) = tmp; | |
| 2295 | |
| 2296 if (! ok ()) | |
| 2297 break; | |
| 2298 | |
| 2299 elt = fmt_list.next (nconv > 0); | |
| 2300 } | |
| 2301 } | |
| 2302 | |
| 4233 | 2303 retval(nconv) = num_values; |
| 3640 | 2304 |
| 2305 if (! quit) | |
| 2306 { | |
| 2307 // Pick up any trailing stuff. | |
| 2308 if (ok () && len > nconv) | |
| 2309 { | |
| 2310 octave_value tmp; | |
| 3704 | 2311 |
| 2312 elt = fmt_list.next (); | |
| 2313 | |
| 4468 | 2314 do_oscanf (elt, tmp, who); |
| 3640 | 2315 } |
| 2316 } | |
| 2117 | 2317 } |
| 2318 } | |
| 2319 else | |
| 4468 | 2320 invalid_operation (who, "reading"); |
| 2117 | 2321 |
| 2322 return retval; | |
| 2323 } | |
| 2324 | |
| 2325 // Functions that are defined for all output streams (output streams | |
| 2326 // are those that define os). | |
| 2327 | |
| 2328 int | |
| 2329 octave_base_stream::flush (void) | |
| 2330 { | |
| 2331 int retval = -1; | |
| 2332 | |
| 3523 | 2333 std::ostream *os = output_stream (); |
| 2117 | 2334 |
| 2335 if (os) | |
| 2336 { | |
| 2337 os->flush (); | |
| 2338 | |
| 2339 if (os->good ()) | |
| 2340 retval = 0; | |
| 2341 } | |
| 2342 else | |
| 2343 invalid_operation ("fflush", "writing"); | |
| 2344 | |
| 2345 return retval; | |
| 2346 } | |
| 2347 | |
| 2348 class | |
| 2349 printf_value_cache | |
| 2350 { | |
| 2351 public: | |
| 2352 | |
| 3653 | 2353 enum state { ok, conversion_error }; |
| 2117 | 2354 |
| 7352 | 2355 printf_value_cache (const octave_value_list& args, const std::string& who) |
| 2117 | 2356 : values (args), val_idx (0), elt_idx (0), |
| 2357 n_vals (values.length ()), n_elts (0), data (0), | |
| 7352 | 2358 curr_state (ok) |
| 2359 { | |
| 2360 for (octave_idx_type i = 0; i < values.length (); i++) | |
| 2361 { | |
| 2362 octave_value val = values(i); | |
| 2363 | |
| 2364 if (val.is_map () || val.is_cell () || val.is_object () | |
| 2365 || val.is_list ()) | |
| 2366 { | |
| 2367 gripe_wrong_type_arg (who, val); | |
| 2368 break; | |
| 2369 } | |
| 2370 } | |
| 2371 } | |
| 2117 | 2372 |
| 2373 ~printf_value_cache (void) { } | |
| 2374 | |
| 2375 // Get the current value as a double and advance the internal pointer. | |
| 2376 double double_value (void); | |
| 2377 | |
| 2378 // Get the current value as an int and advance the internal pointer. | |
| 2379 int int_value (void); | |
| 2380 | |
| 2381 // Get the current value as a string and advance the internal pointer. | |
| 3523 | 2382 std::string string_value (void); |
| 2117 | 2383 |
| 3145 | 2384 operator bool () const { return (curr_state == ok); } |
| 2117 | 2385 |
| 3653 | 2386 bool exhausted (void) { return (val_idx >= n_vals); } |
| 2117 | 2387 |
| 2388 private: | |
| 2389 | |
| 2390 const octave_value_list values; | |
| 2391 int val_idx; | |
| 2392 int elt_idx; | |
| 2393 int n_vals; | |
| 2394 int n_elts; | |
| 2395 const double *data; | |
| 4874 | 2396 NDArray curr_val; |
| 2117 | 2397 state curr_state; |
| 2398 | |
| 2399 // Must create value cache with values! | |
| 2400 | |
| 2401 printf_value_cache (void); | |
| 2402 | |
| 2403 // No copying! | |
| 2404 | |
| 2405 printf_value_cache (const printf_value_cache&); | |
| 2406 | |
| 2407 printf_value_cache& operator = (const printf_value_cache&); | |
| 2408 }; | |
| 2409 | |
| 2410 double | |
| 2411 printf_value_cache::double_value (void) | |
| 2412 { | |
| 2413 double retval = 0.0; | |
| 2414 | |
| 3711 | 2415 if (exhausted ()) |
| 2416 curr_state = conversion_error; | |
| 2417 | |
| 2418 while (! exhausted ()) | |
| 2117 | 2419 { |
| 2420 if (! data) | |
| 2421 { | |
| 2422 octave_value tmp_val = values (val_idx); | |
| 2423 | |
| 5476 | 2424 // Force string conversion here for compatibility. |
| 2425 | |
| 2426 curr_val = tmp_val.array_value (true); | |
| 2117 | 2427 |
| 2428 if (! error_state) | |
| 2429 { | |
| 2430 elt_idx = 0; | |
| 2431 n_elts = curr_val.length (); | |
| 2432 data = curr_val.data (); | |
| 2433 } | |
| 2434 else | |
| 2435 { | |
| 2436 curr_state = conversion_error; | |
| 2437 break; | |
| 2438 } | |
| 2439 } | |
| 2440 | |
| 2441 if (elt_idx < n_elts) | |
| 2442 { | |
| 3653 | 2443 retval = data[elt_idx++]; |
| 2444 | |
| 2445 if (elt_idx >= n_elts) | |
| 2446 { | |
| 2447 elt_idx = 0; | |
| 2448 val_idx++; | |
| 2449 data = 0; | |
| 2450 } | |
| 2451 | |
| 2117 | 2452 break; |
| 2453 } | |
| 2454 else | |
| 2455 { | |
| 2456 val_idx++; | |
| 2457 data = 0; | |
| 3969 | 2458 |
| 2459 if (n_elts == 0 && exhausted ()) | |
| 2460 curr_state = conversion_error; | |
| 2461 | |
| 2117 | 2462 continue; |
| 2463 } | |
| 2464 } | |
| 2465 | |
| 2466 return retval; | |
| 2467 } | |
| 2468 | |
| 2469 int | |
| 2470 printf_value_cache::int_value (void) | |
| 2471 { | |
| 2472 int retval = 0; | |
| 2473 | |
| 2474 double dval = double_value (); | |
| 2475 | |
| 2476 if (! error_state) | |
| 2477 { | |
| 2478 if (D_NINT (dval) == dval) | |
| 2479 retval = NINT (dval); | |
| 2480 else | |
| 2481 curr_state = conversion_error; | |
| 2482 } | |
| 2483 | |
| 2484 return retval; | |
| 2485 } | |
| 2486 | |
| 3536 | 2487 std::string |
| 2117 | 2488 printf_value_cache::string_value (void) |
| 2489 { | |
| 3523 | 2490 std::string retval; |
| 2117 | 2491 |
| 4425 | 2492 if (exhausted ()) |
| 2493 curr_state = conversion_error; | |
| 4257 | 2494 else |
| 2117 | 2495 { |
| 4425 | 2496 octave_value tval = values (val_idx++); |
| 2497 | |
| 2498 if (tval.rows () == 1) | |
| 2499 retval = tval.string_value (); | |
| 2500 else | |
| 2501 { | |
| 2502 // In the name of Matlab compatibility. | |
| 2503 | |
| 2504 charMatrix chm = tval.char_matrix_value (); | |
| 2505 | |
| 5275 | 2506 octave_idx_type nr = chm.rows (); |
| 2507 octave_idx_type nc = chm.columns (); | |
| 4425 | 2508 |
| 2509 int k = 0; | |
| 2510 | |
| 2511 retval.resize (nr * nc, '\0'); | |
| 2512 | |
| 5275 | 2513 for (octave_idx_type j = 0; j < nc; j++) |
| 2514 for (octave_idx_type i = 0; i < nr; i++) | |
| 4425 | 2515 retval[k++] = chm(i,j); |
| 2516 } | |
| 2517 | |
| 2518 if (error_state) | |
| 2519 curr_state = conversion_error; | |
| 2117 | 2520 } |
| 4257 | 2521 |
| 2117 | 2522 return retval; |
| 2523 } | |
| 2524 | |
| 2525 // Ugh again and again. | |
| 2526 | |
| 2572 | 2527 template <class T> |
| 3620 | 2528 int |
| 3523 | 2529 do_printf_conv (std::ostream& os, const char *fmt, int nsa, int sa_1, |
| 4468 | 2530 int sa_2, T arg, const std::string& who) |
| 2572 | 2531 { |
| 3620 | 2532 int retval = 0; |
| 2533 | |
| 2572 | 2534 switch (nsa) |
| 2535 { | |
| 2536 case 2: | |
| 3640 | 2537 retval = octave_format (os, fmt, sa_1, sa_2, arg); |
| 2572 | 2538 break; |
| 2539 | |
| 2540 case 1: | |
| 3640 | 2541 retval = octave_format (os, fmt, sa_1, arg); |
| 2572 | 2542 break; |
| 2543 | |
| 2544 case 0: | |
| 3640 | 2545 retval = octave_format (os, fmt, arg); |
| 2572 | 2546 break; |
| 2547 | |
| 2548 default: | |
| 4468 | 2549 ::error ("%s: internal error handling format", who.c_str ()); |
| 2572 | 2550 break; |
| 2551 } | |
| 3620 | 2552 |
| 2553 return retval; | |
| 2572 | 2554 } |
| 2555 | |
| 3620 | 2556 template int |
| 4468 | 2557 do_printf_conv (std::ostream&, const char*, int, int, int, int, |
| 2558 const std::string&); | |
| 2559 | |
| 2560 template int | |
| 2561 do_printf_conv (std::ostream&, const char*, int, int, int, long, | |
| 2562 const std::string&); | |
| 2563 | |
| 3878 | 2564 template int |
| 4468 | 2565 do_printf_conv (std::ostream&, const char*, int, int, int, unsigned int, |
| 2566 const std::string&); | |
| 2567 | |
| 2568 template int | |
| 2569 do_printf_conv (std::ostream&, const char*, int, int, int, unsigned long, | |
| 2570 const std::string&); | |
| 2571 | |
| 2572 template int | |
| 2573 do_printf_conv (std::ostream&, const char*, int, int, int, double, | |
| 2574 const std::string&); | |
| 2575 | |
| 2576 template int | |
| 2577 do_printf_conv (std::ostream&, const char*, int, int, int, const char*, | |
| 2578 const std::string&); | |
| 2117 | 2579 |
| 6492 | 2580 #define DO_DOUBLE_CONV(TQUAL) \ |
| 2581 do \ | |
| 2582 { \ | |
| 7199 | 2583 if (val > std::numeric_limits<TQUAL long>::max () \ |
| 2584 || val < std::numeric_limits<TQUAL long>::min ()) \ | |
| 6492 | 2585 { \ |
| 7199 | 2586 std::string tfmt = fmt; \ |
| 6492 | 2587 \ |
| 7199 | 2588 tfmt.replace (tfmt.rfind (elt->type), 1, ".f"); \ |
| 6492 | 2589 \ |
| 7199 | 2590 if (elt->modifier == 'l') \ |
| 2591 tfmt.replace (tfmt.rfind (elt->modifier), 1, ""); \ | |
| 2592 \ | |
| 2593 retval += do_printf_conv (os, tfmt.c_str (), nsa, sa_1, sa_2, \ | |
| 2594 val, who); \ | |
| 6492 | 2595 } \ |
| 2596 else \ | |
| 7199 | 2597 retval += do_printf_conv (os, fmt, nsa, sa_1, sa_2, \ |
| 2598 static_cast<TQUAL long> (val), who); \ | |
| 6492 | 2599 } \ |
| 2600 while (0) | |
| 2601 | |
| 2117 | 2602 int |
| 2603 octave_base_stream::do_printf (printf_format_list& fmt_list, | |
| 4468 | 2604 const octave_value_list& args, |
| 2605 const std::string& who) | |
| 2117 | 2606 { |
| 3620 | 2607 int retval = 0; |
| 2117 | 2608 |
| 3640 | 2609 int nconv = fmt_list.num_conversions (); |
| 2610 | |
| 3523 | 2611 std::ostream *osp = output_stream (); |
| 2117 | 2612 |
| 2613 if (osp) | |
| 2614 { | |
| 3523 | 2615 std::ostream& os = *osp; |
| 2117 | 2616 |
| 2617 const printf_format_elt *elt = fmt_list.first (); | |
| 2618 | |
| 7352 | 2619 printf_value_cache val_cache (args, who); |
| 2620 | |
| 2621 if (error_state) | |
| 2622 return retval; | |
| 2117 | 2623 |
| 2624 for (;;) | |
| 2625 { | |
|
10142
829e69ec3110
make OCTAVE_QUIT a function
Jaroslav Hajek <highegg@gmail.com>
parents:
10076
diff
changeset
|
2626 octave_quit (); |
| 4153 | 2627 |
| 2117 | 2628 if (elt) |
| 2629 { | |
| 3640 | 2630 // NSA is the number of `star' args to convert. |
| 2631 | |
| 2632 int nsa = (elt->fw < 0) + (elt->prec < 0); | |
| 2117 | 2633 |
| 2634 int sa_1 = 0; | |
| 2635 int sa_2 = 0; | |
| 2636 | |
| 2637 if (nsa > 0) | |
| 2638 { | |
| 2639 sa_1 = val_cache.int_value (); | |
| 2640 | |
| 2641 if (! val_cache) | |
| 2642 break; | |
| 2643 else | |
| 2644 { | |
| 2645 if (nsa > 1) | |
| 2646 { | |
| 2647 sa_2 = val_cache.int_value (); | |
| 2648 | |
| 2649 if (! val_cache) | |
| 2650 break; | |
| 2651 } | |
| 2652 } | |
| 2653 } | |
| 2654 | |
| 2655 const char *fmt = elt->text; | |
| 2656 | |
| 3640 | 2657 if (elt->type == '%') |
| 2658 { | |
| 2659 os << "%"; | |
| 2660 retval++; | |
| 2661 } | |
| 2662 else if (elt->args == 0 && elt->text) | |
| 2663 { | |
| 2664 os << elt->text; | |
| 2665 retval += strlen (elt->text); | |
| 2666 } | |
| 4257 | 2667 else if (elt->type == 's') |
| 3640 | 2668 { |
| 2669 std::string val = val_cache.string_value (); | |
| 2670 | |
| 2671 if (val_cache) | |
| 2672 retval += do_printf_conv (os, fmt, nsa, sa_1, | |
| 4468 | 2673 sa_2, val.c_str (), who); |
| 3640 | 2674 else |
| 2675 break; | |
| 2676 } | |
| 2117 | 2677 else |
| 2678 { | |
| 3640 | 2679 double val = val_cache.double_value (); |
| 2680 | |
| 2681 if (val_cache) | |
| 2117 | 2682 { |
| 6492 | 2683 if (lo_ieee_isnan (val) || xisinf (val)) |
| 4303 | 2684 { |
| 2685 std::string tfmt = fmt; | |
| 6865 | 2686 std::string::size_type i1, i2; |
| 2687 | |
| 2688 tfmt.replace ((i1 = tfmt.rfind (elt->type)), | |
| 2689 1, 1, 's'); | |
| 2690 | |
| 8021 | 2691 if ((i2 = tfmt.rfind ('.')) != std::string::npos && i2 < i1) |
| 6865 | 2692 { |
| 2693 tfmt.erase (i2, i1-i2); | |
| 2694 if (elt->prec < 0) | |
| 2695 nsa--; | |
| 2696 } | |
| 6492 | 2697 |
| 2698 const char *tval = xisinf (val) | |
| 2699 ? (val < 0 ? "-Inf" : "Inf") | |
| 2700 : (lo_ieee_is_NA (val) ? "NA" : "NaN"); | |
| 2701 | |
| 2702 retval += do_printf_conv (os, tfmt.c_str (), | |
| 2703 nsa, sa_1, sa_2, | |
| 2704 tval, who); | |
| 4303 | 2705 } |
| 2706 else | |
| 3640 | 2707 { |
| 6492 | 2708 char type = elt->type; |
| 2709 | |
| 2710 switch (type) | |
| 4303 | 2711 { |
| 2712 case 'd': case 'i': case 'c': | |
| 7227 | 2713 DO_DOUBLE_CONV (OCTAVE_EMPTY_CPP_ARG); |
| 4303 | 2714 break; |
| 2715 | |
| 2716 case 'o': case 'x': case 'X': case 'u': | |
| 6492 | 2717 DO_DOUBLE_CONV (unsigned); |
| 4303 | 2718 break; |
| 2719 | |
| 2720 case 'f': case 'e': case 'E': | |
| 2721 case 'g': case 'G': | |
| 2722 retval | |
| 2723 += do_printf_conv (os, fmt, nsa, sa_1, sa_2, | |
| 4468 | 2724 val, who); |
| 4303 | 2725 break; |
| 2726 | |
| 2727 default: | |
| 4468 | 2728 error ("%s: invalid format specifier", |
| 2729 who.c_str ()); | |
| 4303 | 2730 return -1; |
| 2731 break; | |
| 2732 } | |
| 3640 | 2733 } |
| 2117 | 2734 } |
| 2735 else | |
| 3620 | 2736 break; |
| 2117 | 2737 } |
| 2738 | |
| 3620 | 2739 if (! os) |
| 2117 | 2740 { |
| 4468 | 2741 error ("%s: write error", who.c_str ()); |
| 2117 | 2742 break; |
| 2743 } | |
| 2744 } | |
| 2745 else | |
| 2746 { | |
| 4468 | 2747 ::error ("%s: internal error handling format", who.c_str ()); |
| 2117 | 2748 retval = -1; |
| 2749 break; | |
| 2750 } | |
| 2751 | |
| 3640 | 2752 elt = fmt_list.next (nconv > 0 && ! val_cache.exhausted ()); |
| 2753 | |
| 2754 if (! elt || (val_cache.exhausted () && elt->args > 0)) | |
| 2755 break; | |
| 2756 } | |
| 2117 | 2757 } |
| 3640 | 2758 else |
| 4468 | 2759 invalid_operation (who, "writing"); |
| 2117 | 2760 |
| 2761 return retval; | |
| 2762 } | |
| 2763 | |
| 2764 int | |
| 3640 | 2765 octave_base_stream::printf (const std::string& fmt, |
| 4468 | 2766 const octave_value_list& args, |
| 2767 const std::string& who) | |
| 2117 | 2768 { |
| 3640 | 2769 int retval = 0; |
| 2770 | |
| 2771 printf_format_list fmt_list (fmt); | |
| 2772 | |
| 2773 if (fmt_list.num_conversions () == -1) | |
| 4468 | 2774 ::error ("%s: invalid format specified", who.c_str ()); |
| 2117 | 2775 else |
| 4468 | 2776 retval = do_printf (fmt_list, args, who); |
| 2117 | 2777 |
| 2778 return retval; | |
| 2779 } | |
| 2780 | |
| 2781 int | |
| 4468 | 2782 octave_base_stream::puts (const std::string& s, const std::string& who) |
| 2117 | 2783 { |
| 2784 int retval = -1; | |
| 2785 | |
| 3523 | 2786 std::ostream *osp = output_stream (); |
| 2117 | 2787 |
| 2788 if (osp) | |
| 2789 { | |
| 3523 | 2790 std::ostream& os = *osp; |
| 2117 | 2791 |
| 2792 os << s; | |
| 2793 | |
| 2794 if (os) | |
| 2795 { | |
| 5775 | 2796 // FIXME -- why does this seem to be necessary? |
| 2117 | 2797 // Without it, output from a loop like |
| 2798 // | |
| 2799 // for i = 1:100, fputs (stdout, "foo\n"); endfor | |
| 2800 // | |
| 2801 // doesn't seem to go to the pager immediately. | |
| 2802 | |
| 2803 os.flush (); | |
| 2804 | |
| 2805 if (os) | |
| 2806 retval = 0; | |
| 2807 else | |
| 4468 | 2808 error ("%s: write error", who.c_str ()); |
| 2117 | 2809 } |
| 2810 else | |
| 4468 | 2811 error ("%s: write error", who.c_str ()); |
| 2117 | 2812 } |
| 2813 else | |
| 4468 | 2814 invalid_operation (who, "writing"); |
| 2117 | 2815 |
| 2816 return retval; | |
| 2817 } | |
| 2818 | |
| 2819 // Return current error message for this stream. | |
| 2820 | |
| 3536 | 2821 std::string |
| 2435 | 2822 octave_base_stream::error (bool clear_err, int& err_num) |
| 2117 | 2823 { |
| 2435 | 2824 err_num = fail ? -1 : 0; |
| 2117 | 2825 |
| 3523 | 2826 std::string tmp = errmsg; |
| 2117 | 2827 |
| 2828 if (clear_err) | |
| 2829 clear (); | |
| 2830 | |
| 2831 return tmp; | |
| 2832 } | |
| 2833 | |
| 2834 void | |
| 4468 | 2835 octave_base_stream::invalid_operation (const std::string& who, const char *rw) |
| 2117 | 2836 { |
| 4468 | 2837 // Note that this is not ::error () ! |
| 2838 | |
| 6297 | 2839 error (who, std::string ("stream not open for ") + rw); |
| 2117 | 2840 } |
| 2841 | |
| 3552 | 2842 octave_stream::octave_stream (octave_base_stream *bs) |
| 3340 | 2843 : rep (bs) |
| 2844 { | |
| 2845 if (rep) | |
| 2846 rep->count = 1; | |
| 2847 } | |
| 2848 | |
| 2849 octave_stream::~octave_stream (void) | |
| 2850 { | |
| 2851 if (rep && --rep->count == 0) | |
| 2852 delete rep; | |
| 2853 } | |
| 2854 | |
| 2855 octave_stream::octave_stream (const octave_stream& s) | |
| 2856 : rep (s.rep) | |
| 2857 { | |
| 2858 if (rep) | |
| 2859 rep->count++; | |
| 2860 } | |
| 2861 | |
| 2862 octave_stream& | |
| 2863 octave_stream::operator = (const octave_stream& s) | |
| 2864 { | |
| 2865 if (rep != s.rep) | |
| 2866 { | |
| 2867 if (rep && --rep->count == 0) | |
| 2868 delete rep; | |
| 2869 | |
| 2870 rep = s.rep; | |
| 2871 | |
| 2872 if (rep) | |
| 2873 rep->count++; | |
| 2874 } | |
| 2875 | |
| 2876 return *this; | |
| 2877 } | |
| 2878 | |
| 2117 | 2879 int |
| 2880 octave_stream::flush (void) | |
| 2881 { | |
| 2882 int retval = -1; | |
| 2883 | |
| 5659 | 2884 if (stream_ok ()) |
| 2117 | 2885 retval = rep->flush (); |
| 2886 | |
| 2887 return retval; | |
| 2888 } | |
| 2889 | |
| 3536 | 2890 std::string |
| 5275 | 2891 octave_stream::getl (octave_idx_type max_len, bool& err, const std::string& who) |
| 2117 | 2892 { |
| 3523 | 2893 std::string retval; |
| 2117 | 2894 |
| 5659 | 2895 if (stream_ok ()) |
| 4468 | 2896 retval = rep->getl (max_len, err, who); |
| 2117 | 2897 |
| 2898 return retval; | |
| 2899 } | |
| 2900 | |
| 3536 | 2901 std::string |
| 4468 | 2902 octave_stream::getl (const octave_value& tc_max_len, bool& err, |
| 2903 const std::string& who) | |
| 2117 | 2904 { |
| 3523 | 2905 std::string retval; |
| 2117 | 2906 |
| 2907 err = false; | |
| 2908 | |
| 2909 int conv_err = 0; | |
| 2910 | |
| 6345 | 2911 int max_len = -1; |
| 2912 | |
| 2913 if (tc_max_len.is_defined ()) | |
| 2117 | 2914 { |
| 6345 | 2915 max_len = convert_to_valid_int (tc_max_len, conv_err); |
| 2916 | |
| 2917 if (conv_err || max_len < 0) | |
| 2918 { | |
| 2919 err = true; | |
| 2920 ::error ("%s: invalid maximum length specified", who.c_str ()); | |
| 2921 } | |
| 2117 | 2922 } |
| 6345 | 2923 |
| 2924 if (! error_state) | |
| 4468 | 2925 retval = getl (max_len, err, who); |
| 2117 | 2926 |
| 2927 return retval; | |
| 2928 } | |
| 2929 | |
| 3536 | 2930 std::string |
| 5275 | 2931 octave_stream::gets (octave_idx_type max_len, bool& err, const std::string& who) |
| 2117 | 2932 { |
| 3523 | 2933 std::string retval; |
| 2117 | 2934 |
| 5659 | 2935 if (stream_ok ()) |
| 4468 | 2936 retval = rep->gets (max_len, err, who); |
| 2117 | 2937 |
| 2938 return retval; | |
| 2939 } | |
| 2940 | |
| 3536 | 2941 std::string |
| 4468 | 2942 octave_stream::gets (const octave_value& tc_max_len, bool& err, |
| 2943 const std::string& who) | |
| 2117 | 2944 { |
| 3523 | 2945 std::string retval; |
| 2117 | 2946 |
| 2947 err = false; | |
| 2948 | |
| 2949 int conv_err = 0; | |
| 2950 | |
| 6345 | 2951 int max_len = -1; |
| 2952 | |
| 2953 if (tc_max_len.is_defined ()) | |
| 2117 | 2954 { |
| 6345 | 2955 max_len = convert_to_valid_int (tc_max_len, conv_err); |
| 2956 | |
| 2957 if (conv_err || max_len < 0) | |
| 2958 { | |
| 2959 err = true; | |
| 2960 ::error ("%s: invalid maximum length specified", who.c_str ()); | |
| 2961 } | |
| 2117 | 2962 } |
| 6345 | 2963 |
| 2964 if (! error_state) | |
| 4468 | 2965 retval = gets (max_len, err, who); |
| 2117 | 2966 |
| 2967 return retval; | |
| 2968 } | |
| 2969 | |
| 9701 | 2970 long |
| 2971 octave_stream::skipl (long count, bool& err, const std::string& who) | |
| 2972 { | |
| 2973 long retval = -1; | |
| 2974 | |
| 2975 if (stream_ok ()) | |
| 2976 retval = rep->skipl (count, err, who); | |
| 2977 | |
| 2978 return retval; | |
| 2979 } | |
| 2980 | |
| 2981 long | |
| 2982 octave_stream::skipl (const octave_value& tc_count, bool& err, const std::string& who) | |
| 2983 { | |
| 2984 long retval = -1; | |
| 2985 | |
| 2986 err = false; | |
| 2987 | |
| 2988 int conv_err = 0; | |
| 2989 | |
| 2990 int count = 1; | |
| 2991 | |
| 2992 if (tc_count.is_defined ()) | |
| 2993 { | |
| 2994 if (tc_count.is_scalar_type () && xisinf (tc_count.scalar_value ())) | |
| 2995 count = -1; | |
| 2996 else | |
| 2997 { | |
| 2998 count = convert_to_valid_int (tc_count, conv_err); | |
| 2999 | |
| 3000 if (conv_err || count < 0) | |
| 3001 { | |
| 3002 err = true; | |
| 3003 ::error ("%s: invalid number of lines specified", who.c_str ()); | |
| 3004 } | |
| 3005 } | |
| 3006 } | |
| 3007 | |
| 3008 if (! error_state) | |
| 3009 retval = skipl (count, err, who); | |
| 3010 | |
| 3011 return retval; | |
| 3012 } | |
| 3013 | |
| 2117 | 3014 int |
| 4797 | 3015 octave_stream::seek (long offset, int origin) |
| 2117 | 3016 { |
| 5065 | 3017 int status = -1; |
| 2117 | 3018 |
| 5659 | 3019 if (stream_ok ()) |
| 4889 | 3020 { |
| 3021 clearerr (); | |
| 3022 | |
| 5065 | 3023 long orig_pos = rep->tell (); |
| 3024 | |
| 3025 status = rep->seek (offset, origin); | |
| 3026 | |
| 3027 if (status == 0) | |
| 3028 { | |
| 3029 long save_pos = rep->tell (); | |
| 3030 | |
| 3031 rep->seek (0, SEEK_END); | |
| 3032 | |
| 3033 long pos_eof = rep->tell (); | |
| 3034 | |
| 3035 // I don't think save_pos can be less than zero, but we'll | |
| 3036 // check anyway... | |
| 3037 | |
| 3038 if (save_pos > pos_eof || save_pos < 0) | |
| 3039 { | |
| 3040 // Seek outside bounds of file. Failure should leave | |
| 3041 // position unchanged. | |
| 3042 | |
| 3043 rep->seek (orig_pos, SEEK_SET); | |
| 3044 | |
| 3045 status = -1; | |
| 3046 } | |
| 3047 else | |
| 3048 { | |
| 3049 // Is it possible for this to fail? We are just | |
| 3050 // returning to a position after the first successful | |
| 3051 // seek. | |
| 3052 | |
| 3053 rep->seek (save_pos, SEEK_SET); | |
| 3054 } | |
| 3055 } | |
| 4889 | 3056 } |
| 2117 | 3057 |
| 5065 | 3058 return status; |
| 2117 | 3059 } |
| 3060 | |
| 3061 int | |
| 3062 octave_stream::seek (const octave_value& tc_offset, | |
| 3063 const octave_value& tc_origin) | |
| 3064 { | |
| 3065 int retval = -1; | |
| 3066 | |
| 4797 | 3067 long xoffset = tc_offset.long_value (true); |
| 4645 | 3068 |
| 3069 if (! error_state) | |
| 2117 | 3070 { |
| 4645 | 3071 int conv_err = 0; |
| 3072 | |
| 4797 | 3073 int origin = SEEK_SET; |
| 2117 | 3074 |
| 2341 | 3075 if (tc_origin.is_string ()) |
| 2117 | 3076 { |
| 3523 | 3077 std::string xorigin = tc_origin.string_value (); |
| 2341 | 3078 |
| 3079 if (xorigin == "bof") | |
| 4797 | 3080 origin = SEEK_SET; |
| 2341 | 3081 else if (xorigin == "cof") |
| 4797 | 3082 origin = SEEK_CUR; |
| 2341 | 3083 else if (xorigin == "eof") |
| 4797 | 3084 origin = SEEK_END; |
| 2117 | 3085 else |
| 3086 conv_err = -1; | |
| 3087 } | |
| 2341 | 3088 else |
| 3089 { | |
| 3090 int xorigin = convert_to_valid_int (tc_origin, conv_err); | |
| 3091 | |
| 3092 if (! conv_err) | |
| 3093 { | |
| 3094 if (xorigin == -1) | |
| 4797 | 3095 origin = SEEK_SET; |
| 2341 | 3096 else if (xorigin == 0) |
| 4797 | 3097 origin = SEEK_CUR; |
| 2341 | 3098 else if (xorigin == 1) |
| 4797 | 3099 origin = SEEK_END; |
| 2341 | 3100 else |
| 3101 conv_err = -1; | |
| 3102 } | |
| 3103 } | |
| 2117 | 3104 |
| 3105 if (! conv_err) | |
| 5065 | 3106 { |
| 3107 retval = seek (xoffset, origin); | |
| 3108 | |
| 3109 if (retval != 0) | |
| 3110 error ("fseek: failed to seek to requested position"); | |
| 3111 } | |
| 2117 | 3112 else |
| 3113 error ("fseek: invalid value for origin"); | |
| 3114 } | |
| 3115 else | |
| 3116 error ("fseek: invalid value for offset"); | |
| 3117 | |
| 3118 return retval; | |
| 3119 } | |
| 3120 | |
| 4797 | 3121 long |
| 3122 octave_stream::tell (void) | |
| 2117 | 3123 { |
| 4797 | 3124 long retval = -1; |
| 2117 | 3125 |
| 5659 | 3126 if (stream_ok ()) |
| 2117 | 3127 retval = rep->tell (); |
| 3128 | |
| 3129 return retval; | |
| 3130 } | |
| 3131 | |
| 3132 int | |
| 3133 octave_stream::rewind (void) | |
| 3134 { | |
| 6296 | 3135 return seek (0, SEEK_SET); |
| 2117 | 3136 } |
| 3137 | |
| 3340 | 3138 bool |
| 3139 octave_stream::is_open (void) const | |
| 3140 { | |
| 3141 bool retval = false; | |
| 3142 | |
| 5659 | 3143 if (stream_ok ()) |
| 3340 | 3144 retval = rep->is_open (); |
| 3145 | |
| 3146 return retval; | |
| 3147 } | |
| 3148 | |
| 3149 void | |
| 3150 octave_stream::close (void) | |
| 3151 { | |
| 5659 | 3152 if (stream_ok ()) |
| 3340 | 3153 rep->close (); |
| 3154 } | |
| 3155 | |
| 4944 | 3156 template <class RET_T, class READ_T> |
| 2117 | 3157 octave_value |
| 5275 | 3158 do_read (octave_stream& strm, octave_idx_type nr, octave_idx_type nc, octave_idx_type block_size, |
| 7995 | 3159 octave_idx_type skip, bool do_float_fmt_conv, bool do_NA_conv, |
| 5275 | 3160 oct_mach_info::float_format from_flt_fmt, octave_idx_type& count) |
| 2117 | 3161 { |
| 3162 octave_value retval; | |
| 3163 | |
| 4944 | 3164 RET_T nda; |
| 3165 | |
| 3166 count = 0; | |
| 3167 | |
|
9941
1369f13ae6b2
several fixes by M. Goffioul
Jaroslav Hajek <highegg@gmail.com>
parents:
9701
diff
changeset
|
3168 typedef typename RET_T::element_type ELMT; |
|
1369f13ae6b2
several fixes by M. Goffioul
Jaroslav Hajek <highegg@gmail.com>
parents:
9701
diff
changeset
|
3169 ELMT elt_zero = ELMT (); |
|
1369f13ae6b2
several fixes by M. Goffioul
Jaroslav Hajek <highegg@gmail.com>
parents:
9701
diff
changeset
|
3170 |
|
1369f13ae6b2
several fixes by M. Goffioul
Jaroslav Hajek <highegg@gmail.com>
parents:
9701
diff
changeset
|
3171 ELMT *dat = 0; |
| 4944 | 3172 |
| 5275 | 3173 octave_idx_type max_size = 0; |
| 3174 | |
| 3175 octave_idx_type final_nr = 0; | |
| 3176 octave_idx_type final_nc = 1; | |
| 4944 | 3177 |
| 3178 if (nr > 0) | |
| 3179 { | |
| 3180 if (nc > 0) | |
| 3181 { | |
| 3182 nda.resize (dim_vector (nr, nc), elt_zero); | |
| 3183 dat = nda.fortran_vec (); | |
| 3184 max_size = nr * nc; | |
| 3185 } | |
| 3186 else | |
| 3187 { | |
| 3188 nda.resize (dim_vector (nr, 32), elt_zero); | |
| 3189 dat = nda.fortran_vec (); | |
| 3190 max_size = nr * 32; | |
| 3191 } | |
| 3192 } | |
| 3193 else | |
| 3194 { | |
| 3195 nda.resize (dim_vector (32, 1), elt_zero); | |
| 3196 dat = nda.fortran_vec (); | |
| 3197 max_size = 32; | |
| 3198 } | |
| 3199 | |
| 5775 | 3200 // FIXME -- byte order for Cray? |
| 4944 | 3201 |
| 3202 bool swap = false; | |
| 3203 | |
| 3204 if (oct_mach_info::words_big_endian ()) | |
| 3205 swap = (from_flt_fmt == oct_mach_info::flt_fmt_ieee_little_endian | |
| 3206 || from_flt_fmt == oct_mach_info::flt_fmt_vax_g | |
| 3207 || from_flt_fmt == oct_mach_info::flt_fmt_vax_g); | |
| 3208 else | |
| 3209 swap = (from_flt_fmt == oct_mach_info::flt_fmt_ieee_big_endian); | |
| 3210 | |
| 3211 union | |
| 3212 { | |
| 9685 | 3213 char buf[sizeof (typename strip_template_param<octave_int, READ_T>::type)]; |
| 3214 typename strip_template_param<octave_int, READ_T>::type val; | |
| 4944 | 3215 } u; |
| 3216 | |
| 3217 std::istream *isp = strm.input_stream (); | |
| 3218 | |
| 3219 if (isp) | |
| 3220 { | |
| 3221 std::istream& is = *isp; | |
| 3222 | |
| 5275 | 3223 octave_idx_type elts_read = 0; |
| 4944 | 3224 |
| 3225 for (;;) | |
| 3226 { | |
| 5775 | 3227 // FIXME -- maybe there should be a special case for |
| 4944 | 3228 // skip == 0. |
| 3229 | |
| 3230 if (is) | |
| 3231 { | |
| 3232 if (nr > 0 && nc > 0 && count == max_size) | |
| 3233 { | |
| 3234 final_nr = nr; | |
| 3235 final_nc = nc; | |
| 3236 | |
| 3237 break; | |
| 3238 } | |
| 3239 | |
| 9685 | 3240 is.read (u.buf, sizeof (typename strip_template_param<octave_int, READ_T>::type)); |
| 4944 | 3241 |
| 3242 // We only swap bytes for integer types. For float | |
| 3243 // types, the format conversion will also handle byte | |
| 3244 // swapping. | |
| 3245 | |
| 3246 if (swap) | |
| 9685 | 3247 swap_bytes<sizeof (typename strip_template_param<octave_int, READ_T>::type)> (u.buf); |
| 4944 | 3248 else if (do_float_fmt_conv) |
| 3249 do_float_format_conversion | |
| 3250 (u.buf, | |
| 9685 | 3251 sizeof (typename strip_template_param<octave_int, READ_T>::type), |
| 4944 | 3252 1, from_flt_fmt, oct_mach_info::float_format ()); |
| 3253 | |
| 9685 | 3254 typename RET_T::element_type tmp |
| 3255 = static_cast <typename RET_T::element_type> (u.val); | |
| 4944 | 3256 |
| 5030 | 3257 if (is) |
| 4944 | 3258 { |
| 5030 | 3259 if (count == max_size) |
| 4944 | 3260 { |
| 5030 | 3261 max_size *= 2; |
| 3262 | |
| 3263 if (nr > 0) | |
| 3264 nda.resize (dim_vector (nr, max_size / nr), | |
| 3265 elt_zero); | |
| 3266 else | |
| 3267 nda.resize (dim_vector (max_size, 1), elt_zero); | |
| 3268 | |
| 3269 dat = nda.fortran_vec (); | |
| 4944 | 3270 } |
| 3271 | |
| 7995 | 3272 if (do_NA_conv && __lo_ieee_is_old_NA (tmp)) |
| 3273 tmp = __lo_ieee_replace_old_NA (tmp); | |
| 3274 | |
| 5030 | 3275 dat[count++] = tmp; |
| 3276 | |
| 3277 elts_read++; | |
| 3278 } | |
| 3279 | |
|
7538
2c4b0cbda85a
oct-stream.cc (do_read): stop reading if seek fails
John W. Eaton <jwe@octave.org>
parents:
7433
diff
changeset
|
3280 int seek_status = 0; |
|
2c4b0cbda85a
oct-stream.cc (do_read): stop reading if seek fails
John W. Eaton <jwe@octave.org>
parents:
7433
diff
changeset
|
3281 |
| 5030 | 3282 if (skip != 0 && elts_read == block_size) |
| 3283 { | |
|
7538
2c4b0cbda85a
oct-stream.cc (do_read): stop reading if seek fails
John W. Eaton <jwe@octave.org>
parents:
7433
diff
changeset
|
3284 seek_status = strm.seek (skip, SEEK_CUR); |
| 5030 | 3285 elts_read = 0; |
| 3286 } | |
| 3287 | |
|
7538
2c4b0cbda85a
oct-stream.cc (do_read): stop reading if seek fails
John W. Eaton <jwe@octave.org>
parents:
7433
diff
changeset
|
3288 if (is.eof () || seek_status < 0) |
| 5030 | 3289 { |
| 3290 if (nr > 0) | |
| 4944 | 3291 { |
| 5030 | 3292 if (count > nr) |
| 4944 | 3293 { |
| 5030 | 3294 final_nr = nr; |
| 3295 final_nc = (count - 1) / nr + 1; | |
| 4944 | 3296 } |
| 3297 else | |
| 3298 { | |
| 3299 final_nr = count; | |
| 3300 final_nc = 1; | |
| 3301 } | |
| 3302 } | |
| 5030 | 3303 else |
| 3304 { | |
| 3305 final_nr = count; | |
| 3306 final_nc = 1; | |
| 3307 } | |
| 3308 | |
| 4944 | 3309 break; |
| 3310 } | |
| 3311 } | |
| 5030 | 3312 else if (is.eof ()) |
| 3313 break; | |
| 4944 | 3314 } |
| 3315 } | |
| 3316 | |
| 5030 | 3317 nda.resize (dim_vector (final_nr, final_nc), elt_zero); |
| 3318 | |
| 3319 retval = nda; | |
| 4944 | 3320 |
| 3321 return retval; | |
| 3322 } | |
| 3323 | |
| 3324 #define DO_READ_VAL_TEMPLATE(RET_T, READ_T) \ | |
| 3325 template octave_value \ | |
| 7995 | 3326 do_read<RET_T, READ_T> (octave_stream&, octave_idx_type, octave_idx_type, octave_idx_type, octave_idx_type, bool, bool, \ |
| 5275 | 3327 oct_mach_info::float_format, octave_idx_type&) |
| 4944 | 3328 |
| 5775 | 3329 // FIXME -- should we only have float if it is a different |
| 4944 | 3330 // size from double? |
| 3331 | |
| 3332 #define INSTANTIATE_DO_READ(VAL_T) \ | |
| 3333 DO_READ_VAL_TEMPLATE (VAL_T, octave_int8); \ | |
| 3334 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint8); \ | |
| 3335 DO_READ_VAL_TEMPLATE (VAL_T, octave_int16); \ | |
| 3336 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint16); \ | |
| 3337 DO_READ_VAL_TEMPLATE (VAL_T, octave_int32); \ | |
| 3338 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint32); \ | |
| 3339 DO_READ_VAL_TEMPLATE (VAL_T, octave_int64); \ | |
| 3340 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint64); \ | |
| 3341 DO_READ_VAL_TEMPLATE (VAL_T, float); \ | |
| 3342 DO_READ_VAL_TEMPLATE (VAL_T, double); \ | |
| 3343 DO_READ_VAL_TEMPLATE (VAL_T, char); \ | |
| 3344 DO_READ_VAL_TEMPLATE (VAL_T, signed char); \ | |
| 3345 DO_READ_VAL_TEMPLATE (VAL_T, unsigned char) | |
| 3346 | |
| 4970 | 3347 INSTANTIATE_DO_READ (int8NDArray); |
| 3348 INSTANTIATE_DO_READ (uint8NDArray); | |
| 3349 INSTANTIATE_DO_READ (int16NDArray); | |
| 3350 INSTANTIATE_DO_READ (uint16NDArray); | |
| 3351 INSTANTIATE_DO_READ (int32NDArray); | |
| 3352 INSTANTIATE_DO_READ (uint32NDArray); | |
| 3353 INSTANTIATE_DO_READ (int64NDArray); | |
| 3354 INSTANTIATE_DO_READ (uint64NDArray); | |
|
7789
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7724
diff
changeset
|
3355 INSTANTIATE_DO_READ (FloatNDArray); |
| 4970 | 3356 INSTANTIATE_DO_READ (NDArray); |
| 3357 INSTANTIATE_DO_READ (charNDArray); | |
| 5780 | 3358 INSTANTIATE_DO_READ (boolNDArray); |
| 4944 | 3359 |
| 7995 | 3360 typedef octave_value (*read_fptr) (octave_stream&, octave_idx_type, octave_idx_type, octave_idx_type, octave_idx_type, bool, bool, |
| 5275 | 3361 oct_mach_info::float_format ffmt, octave_idx_type&); |
| 4944 | 3362 |
| 3363 #define FILL_TABLE_ROW(R, VAL_T) \ | |
|
9202
4b2147b25e8d
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Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3364 read_fptr_table[R][oct_data_conv::dt_int8] = do_read<VAL_T, octave_int8>; \ |
|
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3365 read_fptr_table[R][oct_data_conv::dt_uint8] = do_read<VAL_T, octave_uint8>; \ |
|
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3366 read_fptr_table[R][oct_data_conv::dt_int16] = do_read<VAL_T, octave_int16>; \ |
|
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3367 read_fptr_table[R][oct_data_conv::dt_uint16] = do_read<VAL_T, octave_uint16>; \ |
|
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3368 read_fptr_table[R][oct_data_conv::dt_int32] = do_read<VAL_T, octave_int32>; \ |
|
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3369 read_fptr_table[R][oct_data_conv::dt_uint32] = do_read<VAL_T, octave_uint32>; \ |
|
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3370 read_fptr_table[R][oct_data_conv::dt_int64] = do_read<VAL_T, octave_int64>; \ |
|
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3371 read_fptr_table[R][oct_data_conv::dt_uint64] = do_read<VAL_T, octave_uint64>; \ |
|
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3372 read_fptr_table[R][oct_data_conv::dt_single] = do_read<VAL_T, float>; \ |
|
4b2147b25e8d
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Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3373 read_fptr_table[R][oct_data_conv::dt_double] = do_read<VAL_T, double>; \ |
|
4b2147b25e8d
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Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3374 read_fptr_table[R][oct_data_conv::dt_char] = do_read<VAL_T, char>; \ |
|
4b2147b25e8d
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Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3375 read_fptr_table[R][oct_data_conv::dt_schar] = do_read<VAL_T, signed char>; \ |
|
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3376 read_fptr_table[R][oct_data_conv::dt_uchar] = do_read<VAL_T, unsigned char>; \ |
|
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3377 read_fptr_table[R][oct_data_conv::dt_logical] = do_read<VAL_T, unsigned char> |
| 4944 | 3378 |
| 3379 octave_value | |
| 5275 | 3380 octave_stream::read (const Array<double>& size, octave_idx_type block_size, |
| 4944 | 3381 oct_data_conv::data_type input_type, |
| 3382 oct_data_conv::data_type output_type, | |
| 5275 | 3383 octave_idx_type skip, oct_mach_info::float_format ffmt, |
| 3384 octave_idx_type& char_count) | |
| 4944 | 3385 { |
| 3386 static bool initialized = false; | |
| 3387 | |
| 3388 // Table function pointers for return types x read types. | |
| 3389 | |
|
9202
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3390 static read_fptr read_fptr_table[oct_data_conv::dt_unknown][14]; |
| 4944 | 3391 |
| 3392 if (! initialized) | |
| 3393 { | |
|
9202
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3394 for (int i = 0; i < oct_data_conv::dt_unknown; i++) |
|
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3395 for (int j = 0; j < 14; j++) |
|
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3396 read_fptr_table[i][j] = 0; |
|
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3397 |
| 4944 | 3398 FILL_TABLE_ROW (oct_data_conv::dt_int8, int8NDArray); |
| 3399 FILL_TABLE_ROW (oct_data_conv::dt_uint8, uint8NDArray); | |
| 3400 FILL_TABLE_ROW (oct_data_conv::dt_int16, int16NDArray); | |
| 3401 FILL_TABLE_ROW (oct_data_conv::dt_uint16, uint16NDArray); | |
| 3402 FILL_TABLE_ROW (oct_data_conv::dt_int32, int32NDArray); | |
| 3403 FILL_TABLE_ROW (oct_data_conv::dt_uint32, uint32NDArray); | |
| 3404 FILL_TABLE_ROW (oct_data_conv::dt_int64, int64NDArray); | |
| 3405 FILL_TABLE_ROW (oct_data_conv::dt_uint64, uint64NDArray); | |
|
7789
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7724
diff
changeset
|
3406 FILL_TABLE_ROW (oct_data_conv::dt_single, FloatNDArray); |
| 4944 | 3407 FILL_TABLE_ROW (oct_data_conv::dt_double, NDArray); |
| 3408 FILL_TABLE_ROW (oct_data_conv::dt_char, charNDArray); | |
| 3409 FILL_TABLE_ROW (oct_data_conv::dt_schar, charNDArray); | |
| 3410 FILL_TABLE_ROW (oct_data_conv::dt_uchar, charNDArray); | |
| 4970 | 3411 FILL_TABLE_ROW (oct_data_conv::dt_logical, boolNDArray); |
| 4944 | 3412 |
| 3413 initialized = true; | |
| 3414 } | |
| 3415 | |
| 3416 octave_value retval; | |
| 3417 | |
| 5659 | 3418 if (stream_ok ()) |
| 4944 | 3419 { |
| 5775 | 3420 // FIXME -- we may eventually want to make this extensible. |
| 3421 | |
| 3422 // FIXME -- we need a better way to ensure that this | |
| 4944 | 3423 // numbering stays consistent with the order of the elements in the |
| 3424 // data_type enum in the oct_data_conv class. | |
| 3425 | |
| 3426 char_count = 0; | |
| 3427 | |
| 5275 | 3428 octave_idx_type nr = -1; |
| 3429 octave_idx_type nc = -1; | |
| 4944 | 3430 |
| 3431 bool ignore; | |
| 3432 | |
| 3433 get_size (size, nr, nc, ignore, "fread"); | |
| 3434 | |
| 3435 if (! error_state) | |
| 3436 { | |
| 3437 if (nr == 0 || nc == 0) | |
| 3438 retval = Matrix (nr, nc); | |
| 3439 else | |
| 3440 { | |
| 3441 if (ffmt == oct_mach_info::flt_fmt_unknown) | |
| 3442 ffmt = float_format (); | |
| 3443 | |
|
9202
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3444 read_fptr fcn = read_fptr_table[output_type][input_type]; |
| 4944 | 3445 |
| 3446 bool do_float_fmt_conv = ((input_type == oct_data_conv::dt_double | |
| 3447 || input_type == oct_data_conv::dt_single) | |
| 3448 && ffmt != float_format ()); | |
| 3449 | |
| 7995 | 3450 bool do_NA_conv = (output_type == oct_data_conv::dt_double); |
| 3451 | |
| 4944 | 3452 if (fcn) |
| 3453 { | |
| 3454 retval = (*fcn) (*this, nr, nc, block_size, skip, | |
| 7995 | 3455 do_float_fmt_conv, do_NA_conv, |
| 3456 ffmt, char_count); | |
| 4944 | 3457 |
| 5775 | 3458 // FIXME -- kluge! |
| 4944 | 3459 |
| 3460 if (! error_state | |
| 3461 && (output_type == oct_data_conv::dt_char | |
| 3462 || output_type == oct_data_conv::dt_schar | |
| 3463 || output_type == oct_data_conv::dt_uchar)) | |
|
9689
34d6f005db4b
eliminate is_string argument from octave_value character array constructors
John W. Eaton <jwe@octave.org>
parents:
9685
diff
changeset
|
3464 retval = retval.char_matrix_value (); |
| 4944 | 3465 } |
| 3466 else | |
| 3467 error ("fread: unable to read and convert requested types"); | |
| 3468 } | |
| 3469 } | |
| 3470 else | |
| 3471 invalid_operation ("fread", "reading"); | |
| 3472 } | |
| 2117 | 3473 |
| 3474 return retval; | |
| 3475 } | |
| 3476 | |
| 5275 | 3477 octave_idx_type |
| 3478 octave_stream::write (const octave_value& data, octave_idx_type block_size, | |
| 3479 oct_data_conv::data_type output_type, octave_idx_type skip, | |
| 2317 | 3480 oct_mach_info::float_format flt_fmt) |
| 2117 | 3481 { |
| 5275 | 3482 octave_idx_type retval = -1; |
| 2117 | 3483 |
| 5659 | 3484 if (stream_ok ()) |
| 4944 | 3485 { |
| 3486 if (! error_state) | |
| 3487 { | |
| 3488 if (flt_fmt == oct_mach_info::flt_fmt_unknown) | |
| 3489 flt_fmt = float_format (); | |
| 3490 | |
| 5275 | 3491 octave_idx_type status = data.write (*this, block_size, output_type, |
| 4944 | 3492 skip, flt_fmt); |
| 3493 | |
| 3494 if (status < 0) | |
| 3495 error ("fwrite: write error"); | |
| 3496 else | |
| 3497 retval = status; | |
| 3498 } | |
| 3499 else | |
| 3500 invalid_operation ("fwrite", "writing"); | |
| 3501 } | |
| 2117 | 3502 |
| 3503 return retval; | |
| 3504 } | |
| 3505 | |
| 4944 | 3506 template <class T> |
| 3507 void | |
| 3508 write_int (std::ostream& os, bool swap, const T& val) | |
| 3509 { | |
| 9685 | 3510 typename T::val_type tmp = val.value (); |
| 4944 | 3511 |
| 3512 if (swap) | |
| 9685 | 3513 swap_bytes<sizeof (typename T::val_type)> (&tmp); |
| 4944 | 3514 |
| 3515 os.write (reinterpret_cast<const char *> (&tmp), | |
| 9685 | 3516 sizeof (typename T::val_type)); |
| 4944 | 3517 } |
| 3518 | |
| 3519 template void write_int (std::ostream&, bool, const octave_int8&); | |
| 3520 template void write_int (std::ostream&, bool, const octave_uint8&); | |
| 3521 template void write_int (std::ostream&, bool, const octave_int16&); | |
| 3522 template void write_int (std::ostream&, bool, const octave_uint16&); | |
| 3523 template void write_int (std::ostream&, bool, const octave_int32&); | |
| 3524 template void write_int (std::ostream&, bool, const octave_uint32&); | |
| 3525 template void write_int (std::ostream&, bool, const octave_int64&); | |
| 3526 template void write_int (std::ostream&, bool, const octave_uint64&); | |
| 3527 | |
| 3528 template <class T> | |
| 3529 static inline bool | |
| 3530 do_write (std::ostream& os, const T& val, oct_data_conv::data_type output_type, | |
| 3531 oct_mach_info::float_format flt_fmt, bool swap, | |
| 3532 bool do_float_conversion) | |
| 3533 { | |
| 3534 bool retval = true; | |
| 3535 | |
| 3536 // For compatibility, Octave converts to the output type, then | |
| 3537 // writes. This means that truncation happens on the conversion. | |
| 3538 // For example, the following program prints 0: | |
| 3539 // | |
| 3540 // x = int8 (-1) | |
| 3541 // f = fopen ("foo.dat", "w"); | |
| 3542 // fwrite (f, x, "unsigned char"); | |
| 3543 // fclose (f); | |
| 3544 // f = fopen ("foo.dat", "r"); | |
| 3545 // y = fread (f, 1, "unsigned char"); | |
| 3546 // printf ("%d\n", y); | |
| 3547 | |
| 3548 switch (output_type) | |
| 3549 { | |
| 3550 case oct_data_conv::dt_char: | |
| 3551 case oct_data_conv::dt_schar: | |
| 3552 case oct_data_conv::dt_int8: | |
| 3553 write_int (os, swap, octave_int8 (val)); | |
| 3554 break; | |
| 3555 | |
| 3556 case oct_data_conv::dt_uchar: | |
| 3557 case oct_data_conv::dt_uint8: | |
| 3558 write_int (os, swap, octave_uint8 (val)); | |
| 3559 break; | |
| 3560 | |
| 3561 case oct_data_conv::dt_int16: | |
| 3562 write_int (os, swap, octave_int16 (val)); | |
| 3563 break; | |
| 3564 | |
| 3565 case oct_data_conv::dt_uint16: | |
| 3566 write_int (os, swap, octave_uint16 (val)); | |
| 3567 break; | |
| 3568 | |
| 3569 case oct_data_conv::dt_int32: | |
| 3570 write_int (os, swap, octave_int32 (val)); | |
| 3571 break; | |
| 3572 | |
| 3573 case oct_data_conv::dt_uint32: | |
| 3574 write_int (os, swap, octave_uint32 (val)); | |
| 3575 break; | |
| 3576 | |
| 3577 case oct_data_conv::dt_int64: | |
| 3578 write_int (os, swap, octave_int64 (val)); | |
| 3579 break; | |
| 3580 | |
| 3581 case oct_data_conv::dt_uint64: | |
| 3582 write_int (os, swap, octave_uint64 (val)); | |
| 3583 break; | |
| 3584 | |
| 3585 case oct_data_conv::dt_single: | |
| 3586 { | |
| 3587 float f = static_cast<float> (val); | |
| 3588 | |
| 3589 if (do_float_conversion) | |
| 3590 do_float_format_conversion (&f, 1, flt_fmt); | |
| 3591 | |
| 3592 os.write (reinterpret_cast<const char *> (&f), sizeof (float)); | |
| 3593 } | |
| 3594 break; | |
| 3595 | |
| 3596 case oct_data_conv::dt_double: | |
| 3597 { | |
| 3598 double d = static_cast<double> (val); | |
| 3599 if (do_float_conversion) | |
| 3600 do_double_format_conversion (&d, 1, flt_fmt); | |
| 3601 | |
| 3602 os.write (reinterpret_cast<const char *> (&d), sizeof (double)); | |
| 3603 } | |
| 3604 break; | |
| 3605 | |
| 3606 default: | |
| 3607 retval = false; | |
| 3608 (*current_liboctave_error_handler) | |
| 3609 ("write: invalid type specification"); | |
| 3610 break; | |
| 3611 } | |
| 3612 | |
| 3613 return retval; | |
| 3614 } | |
| 3615 | |
| 5887 | 3616 template bool |
| 3617 do_write (std::ostream&, const octave_int8&, oct_data_conv::data_type, | |
| 3618 oct_mach_info::float_format, bool, bool); | |
| 3619 | |
| 3620 template bool | |
| 3621 do_write (std::ostream&, const octave_uint8&, oct_data_conv::data_type, | |
| 3622 oct_mach_info::float_format, bool, bool); | |
| 3623 | |
| 3624 template bool | |
| 3625 do_write (std::ostream&, const octave_int16&, oct_data_conv::data_type, | |
| 3626 oct_mach_info::float_format, bool, bool); | |
| 3627 | |
| 3628 template bool | |
| 3629 do_write (std::ostream&, const octave_uint16&, oct_data_conv::data_type, | |
| 3630 oct_mach_info::float_format, bool, bool); | |
| 3631 | |
| 3632 template bool | |
| 3633 do_write (std::ostream&, const octave_int32&, oct_data_conv::data_type, | |
| 3634 oct_mach_info::float_format, bool, bool); | |
| 3635 | |
| 3636 template bool | |
| 3637 do_write (std::ostream&, const octave_uint32&, oct_data_conv::data_type, | |
| 3638 oct_mach_info::float_format, bool, bool); | |
| 3639 | |
| 3640 template bool | |
| 3641 do_write (std::ostream&, const octave_int64&, oct_data_conv::data_type, | |
| 3642 oct_mach_info::float_format, bool, bool); | |
| 3643 | |
| 3644 template bool | |
| 3645 do_write (std::ostream&, const octave_uint64&, oct_data_conv::data_type, | |
| 3646 oct_mach_info::float_format, bool, bool); | |
| 3647 | |
| 4944 | 3648 template <class T> |
| 5275 | 3649 octave_idx_type |
| 3650 octave_stream::write (const Array<T>& data, octave_idx_type block_size, | |
| 4944 | 3651 oct_data_conv::data_type output_type, |
| 5275 | 3652 octave_idx_type skip, oct_mach_info::float_format flt_fmt) |
| 4944 | 3653 { |
| 5275 | 3654 octave_idx_type retval = -1; |
| 4944 | 3655 |
| 3656 bool status = true; | |
| 3657 | |
| 5275 | 3658 octave_idx_type count = 0; |
| 4944 | 3659 |
| 3660 const T *d = data.data (); | |
| 3661 | |
| 5275 | 3662 octave_idx_type n = data.length (); |
| 4944 | 3663 |
| 3664 oct_mach_info::float_format native_flt_fmt | |
| 3665 = oct_mach_info::float_format (); | |
| 3666 | |
| 3667 bool do_float_conversion = (flt_fmt != native_flt_fmt); | |
| 3668 | |
| 5775 | 3669 // FIXME -- byte order for Cray? |
| 4944 | 3670 |
| 3671 bool swap = false; | |
| 3672 | |
| 3673 if (oct_mach_info::words_big_endian ()) | |
| 3674 swap = (flt_fmt == oct_mach_info::flt_fmt_ieee_little_endian | |
| 3675 || flt_fmt == oct_mach_info::flt_fmt_vax_g | |
| 3676 || flt_fmt == oct_mach_info::flt_fmt_vax_g); | |
| 3677 else | |
| 3678 swap = (flt_fmt == oct_mach_info::flt_fmt_ieee_big_endian); | |
| 3679 | |
| 5275 | 3680 for (octave_idx_type i = 0; i < n; i++) |
| 4944 | 3681 { |
| 3682 std::ostream *osp = output_stream (); | |
| 3683 | |
| 3684 if (osp) | |
| 3685 { | |
| 3686 std::ostream& os = *osp; | |
| 3687 | |
| 3688 if (skip != 0 && (i % block_size) == 0) | |
| 5254 | 3689 { |
|
9017
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3690 // Seek to skip when inside bounds of existing file. |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3691 // Otherwise, write NUL to skip. |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3692 |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3693 long orig_pos = tell (); |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3694 |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3695 seek (0, SEEK_END); |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3696 |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3697 long eof_pos = tell (); |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3698 |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3699 // Is it possible for this to fail to return us to the |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3700 // original position? |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3701 seek (orig_pos, SEEK_SET); |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3702 |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3703 long remaining = eof_pos - orig_pos; |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3704 |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3705 if (remaining < skip) |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3706 { |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3707 seek (0, SEEK_END); |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3708 |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3709 // FIXME -- probably should try to write larger |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3710 // blocks... |
|
9543a90fac18
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John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3711 |
|
9543a90fac18
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John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3712 unsigned char zero = 0; |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3713 for (octave_idx_type j = 0; j < skip - remaining; j++) |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3714 os.write (reinterpret_cast<const char *> (&zero), 1); |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3715 } |
|
9543a90fac18
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John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3716 else |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3717 seek (skip, SEEK_CUR); |
| 5254 | 3718 } |
| 4944 | 3719 |
| 3720 if (os) | |
| 3721 { | |
| 3722 status = do_write (os, d[i], output_type, flt_fmt, swap, | |
| 3723 do_float_conversion); | |
| 3724 | |
| 3725 if (os && status) | |
| 3726 count++; | |
| 3727 else | |
| 3728 break; | |
| 3729 } | |
| 3730 else | |
| 3731 { | |
| 3732 status = false; | |
| 3733 break; | |
| 3734 } | |
| 3735 } | |
| 3736 else | |
| 3737 { | |
| 3738 status = false; | |
| 3739 break; | |
| 3740 } | |
| 3741 } | |
| 3742 | |
| 3743 if (status) | |
| 3744 retval = count; | |
| 3745 | |
| 3746 return retval; | |
| 3747 } | |
| 3748 | |
| 5275 | 3749 template octave_idx_type |
| 3750 octave_stream::write (const Array<char>&, octave_idx_type, | |
| 4944 | 3751 oct_data_conv::data_type, |
| 5275 | 3752 octave_idx_type, oct_mach_info::float_format); |
| 3753 | |
| 3754 template octave_idx_type | |
| 3755 octave_stream::write (const Array<bool>&, octave_idx_type, | |
| 4970 | 3756 oct_data_conv::data_type, |
| 5275 | 3757 octave_idx_type, oct_mach_info::float_format); |
| 3758 | |
| 3759 template octave_idx_type | |
| 3760 octave_stream::write (const Array<double>&, octave_idx_type, | |
| 4944 | 3761 oct_data_conv::data_type, |
| 5275 | 3762 octave_idx_type, oct_mach_info::float_format); |
| 3763 | |
| 3764 template octave_idx_type | |
|
7789
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7724
diff
changeset
|
3765 octave_stream::write (const Array<float>&, octave_idx_type, |
|
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7724
diff
changeset
|
3766 oct_data_conv::data_type, |
|
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7724
diff
changeset
|
3767 octave_idx_type, oct_mach_info::float_format); |
|
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7724
diff
changeset
|
3768 |
|
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7724
diff
changeset
|
3769 template octave_idx_type |
| 5275 | 3770 octave_stream::write (const Array<octave_int8>&, octave_idx_type, |
| 4944 | 3771 oct_data_conv::data_type, |
| 5275 | 3772 octave_idx_type, oct_mach_info::float_format); |
| 3773 | |
| 3774 template octave_idx_type | |
| 3775 octave_stream::write (const Array<octave_uint8>&, octave_idx_type, | |
| 4944 | 3776 oct_data_conv::data_type, |
| 5275 | 3777 octave_idx_type, oct_mach_info::float_format); |
| 3778 | |
| 3779 template octave_idx_type | |
| 3780 octave_stream::write (const Array<octave_int16>&, octave_idx_type, | |
| 4944 | 3781 oct_data_conv::data_type, |
| 5275 | 3782 octave_idx_type, oct_mach_info::float_format); |
| 3783 | |
| 3784 template octave_idx_type | |
| 3785 octave_stream::write (const Array<octave_uint16>&, octave_idx_type, | |
| 4944 | 3786 oct_data_conv::data_type, |
| 5275 | 3787 octave_idx_type, oct_mach_info::float_format); |
| 3788 | |
| 3789 template octave_idx_type | |
| 3790 octave_stream::write (const Array<octave_int32>&, octave_idx_type, | |
| 4944 | 3791 oct_data_conv::data_type, |
| 5275 | 3792 octave_idx_type, oct_mach_info::float_format); |
| 3793 | |
| 3794 template octave_idx_type | |
| 3795 octave_stream::write (const Array<octave_uint32>&, octave_idx_type, | |
| 4944 | 3796 oct_data_conv::data_type, |
| 5275 | 3797 octave_idx_type, oct_mach_info::float_format); |
| 3798 | |
| 3799 template octave_idx_type | |
| 3800 octave_stream::write (const Array<octave_int64>&, octave_idx_type, | |
| 4944 | 3801 oct_data_conv::data_type, |
| 5275 | 3802 octave_idx_type, oct_mach_info::float_format); |
| 3803 | |
| 3804 template octave_idx_type | |
| 3805 octave_stream::write (const Array<octave_uint64>&, octave_idx_type, | |
| 4944 | 3806 oct_data_conv::data_type, |
| 5275 | 3807 octave_idx_type, oct_mach_info::float_format); |
| 4944 | 3808 |
| 2117 | 3809 octave_value |
| 3810 | 3810 octave_stream::scanf (const std::string& fmt, const Array<double>& size, |
| 5275 | 3811 octave_idx_type& count, const std::string& who) |
| 2117 | 3812 { |
| 3813 octave_value retval; | |
| 3814 | |
| 5659 | 3815 if (stream_ok ()) |
| 4468 | 3816 retval = rep->scanf (fmt, size, count, who); |
| 2117 | 3817 |
| 3818 return retval; | |
| 3819 } | |
| 3820 | |
| 5279 | 3821 octave_value |
| 3822 octave_stream::scanf (const octave_value& fmt, const Array<double>& size, | |
| 5299 | 3823 octave_idx_type& count, const std::string& who) |
| 5279 | 3824 { |
| 3825 octave_value retval = Matrix (); | |
| 3826 | |
| 3827 if (fmt.is_string ()) | |
| 3828 { | |
| 3829 std::string sfmt = fmt.string_value (); | |
| 3830 | |
| 3831 if (fmt.is_sq_string ()) | |
| 3832 sfmt = do_string_escapes (sfmt); | |
| 3833 | |
| 3834 retval = scanf (sfmt, size, count, who); | |
| 3835 } | |
| 3836 else | |
| 3837 { | |
| 3838 // Note that this is not ::error () ! | |
| 3839 | |
| 3840 error (who + ": format must be a string"); | |
| 3841 } | |
| 3842 | |
| 3843 return retval; | |
| 3844 } | |
| 3845 | |
| 2215 | 3846 octave_value_list |
| 4468 | 3847 octave_stream::oscanf (const std::string& fmt, const std::string& who) |
| 2215 | 3848 { |
| 3849 octave_value_list retval; | |
| 3850 | |
| 5659 | 3851 if (stream_ok ()) |
| 4468 | 3852 retval = rep->oscanf (fmt, who); |
| 2215 | 3853 |
| 3854 return retval; | |
| 3855 } | |
| 3856 | |
| 5279 | 3857 octave_value_list |
| 3858 octave_stream::oscanf (const octave_value& fmt, const std::string& who) | |
| 3859 { | |
| 3860 octave_value_list retval; | |
| 3861 | |
| 3862 if (fmt.is_string ()) | |
| 3863 { | |
| 3864 std::string sfmt = fmt.string_value (); | |
| 3865 | |
| 3866 if (fmt.is_sq_string ()) | |
| 3867 sfmt = do_string_escapes (sfmt); | |
| 3868 | |
| 3869 retval = oscanf (sfmt, who); | |
| 3870 } | |
| 3871 else | |
| 3872 { | |
| 3873 // Note that this is not ::error () ! | |
| 3874 | |
| 3875 error (who + ": format must be a string"); | |
| 3876 } | |
| 3877 | |
| 3878 return retval; | |
| 3879 } | |
| 3880 | |
| 2117 | 3881 int |
| 4468 | 3882 octave_stream::printf (const std::string& fmt, const octave_value_list& args, |
| 3883 const std::string& who) | |
| 2117 | 3884 { |
| 3885 int retval = -1; | |
| 3886 | |
| 5659 | 3887 if (stream_ok ()) |
| 4468 | 3888 retval = rep->printf (fmt, args, who); |
| 2117 | 3889 |
| 3890 return retval; | |
| 3891 } | |
| 3892 | |
| 3893 int | |
| 5279 | 3894 octave_stream::printf (const octave_value& fmt, const octave_value_list& args, |
| 3895 const std::string& who) | |
| 3896 { | |
| 3897 int retval = 0; | |
| 3898 | |
| 3899 if (fmt.is_string ()) | |
| 3900 { | |
| 3901 std::string sfmt = fmt.string_value (); | |
| 3902 | |
| 3903 if (fmt.is_sq_string ()) | |
| 3904 sfmt = do_string_escapes (sfmt); | |
| 3905 | |
| 3906 retval = printf (sfmt, args, who); | |
| 3907 } | |
| 3908 else | |
| 3909 { | |
| 3910 // Note that this is not ::error () ! | |
| 3911 | |
| 3912 error (who + ": format must be a string"); | |
| 3913 } | |
| 3914 | |
| 3915 return retval; | |
| 3916 } | |
| 3917 | |
| 3918 int | |
| 4468 | 3919 octave_stream::puts (const std::string& s, const std::string& who) |
| 2117 | 3920 { |
| 3921 int retval = -1; | |
| 3922 | |
| 5659 | 3923 if (stream_ok ()) |
| 4468 | 3924 retval = rep->puts (s, who); |
| 2117 | 3925 |
| 3926 return retval; | |
| 3927 } | |
| 3928 | |
| 5775 | 3929 // FIXME -- maybe this should work for string arrays too. |
| 2117 | 3930 |
| 3931 int | |
| 4468 | 3932 octave_stream::puts (const octave_value& tc_s, const std::string& who) |
| 2117 | 3933 { |
| 3934 int retval = -1; | |
| 3935 | |
| 3936 if (tc_s.is_string ()) | |
| 3937 { | |
| 3523 | 3938 std::string s = tc_s.string_value (); |
| 5279 | 3939 retval = puts (s, who); |
| 2117 | 3940 } |
| 3941 else | |
| 4468 | 3942 { |
| 3943 // Note that this is not ::error () ! | |
| 3944 | |
| 3945 error (who + ": argument must be a string"); | |
| 3946 } | |
| 2117 | 3947 |
| 3948 return retval; | |
| 3949 } | |
| 3950 | |
| 3951 bool | |
| 3952 octave_stream::eof (void) const | |
| 3953 { | |
| 3954 int retval = -1; | |
| 3955 | |
| 5659 | 3956 if (stream_ok ()) |
| 2117 | 3957 retval = rep->eof (); |
| 3958 | |
| 3959 return retval; | |
| 3960 } | |
| 3961 | |
| 3536 | 3962 std::string |
| 2435 | 3963 octave_stream::error (bool clear, int& err_num) |
| 2117 | 3964 { |
| 5649 | 3965 std::string retval = "invalid stream object"; |
| 3966 | |
| 5659 | 3967 if (stream_ok (false)) |
| 2435 | 3968 retval = rep->error (clear, err_num); |
| 2117 | 3969 |
| 3970 return retval; | |
| 3971 } | |
| 3972 | |
| 3536 | 3973 std::string |
| 3340 | 3974 octave_stream::name (void) const |
| 2117 | 3975 { |
| 3523 | 3976 std::string retval; |
| 2117 | 3977 |
| 5659 | 3978 if (stream_ok ()) |
| 2117 | 3979 retval = rep->name (); |
| 3980 | |
| 3981 return retval; | |
| 3982 } | |
| 3983 | |
| 3984 int | |
| 3340 | 3985 octave_stream::mode (void) const |
| 2117 | 3986 { |
| 3987 int retval = 0; | |
| 3988 | |
| 5659 | 3989 if (stream_ok ()) |
| 2117 | 3990 retval = rep->mode (); |
| 3991 | |
| 3992 return retval; | |
| 3993 } | |
| 3994 | |
| 2317 | 3995 oct_mach_info::float_format |
| 3340 | 3996 octave_stream::float_format (void) const |
| 2117 | 3997 { |
| 4574 | 3998 oct_mach_info::float_format retval = oct_mach_info::flt_fmt_unknown; |
| 2317 | 3999 |
| 5659 | 4000 if (stream_ok ()) |
| 2317 | 4001 retval = rep->float_format (); |
| 2117 | 4002 |
| 4003 return retval; | |
| 4004 } | |
| 4005 | |
| 3536 | 4006 std::string |
| 2117 | 4007 octave_stream::mode_as_string (int mode) |
| 4008 { | |
| 3523 | 4009 std::string retval = "???"; |
| 3775 | 4010 std::ios::openmode in_mode = static_cast<std::ios::openmode> (mode); |
| 4011 | |
| 4012 if (in_mode == std::ios::in) | |
| 4013 retval = "r"; | |
| 4014 else if (in_mode == std::ios::out | |
| 4078 | 4015 || in_mode == (std::ios::out | std::ios::trunc)) |
| 3775 | 4016 retval = "w"; |
| 4078 | 4017 else if (in_mode == (std::ios::out | std::ios::app)) |
| 3775 | 4018 retval = "a"; |
| 4078 | 4019 else if (in_mode == (std::ios::in | std::ios::out)) |
| 3775 | 4020 retval = "r+"; |
| 4078 | 4021 else if (in_mode == (std::ios::in | std::ios::out | std::ios::trunc)) |
| 3775 | 4022 retval = "w+"; |
| 4078 | 4023 else if (in_mode == (std::ios::in | std::ios::out | std::ios::ate)) |
| 3775 | 4024 retval = "a+"; |
| 4078 | 4025 else if (in_mode == (std::ios::in | std::ios::binary)) |
| 3775 | 4026 retval = "rb"; |
| 4078 | 4027 else if (in_mode == (std::ios::out | std::ios::binary) |
| 4028 || in_mode == (std::ios::out | std::ios::trunc | std::ios::binary)) | |
| 3775 | 4029 retval = "wb"; |
| 4078 | 4030 else if (in_mode == (std::ios::out | std::ios::app | std::ios::binary)) |
| 3775 | 4031 retval = "ab"; |
| 4078 | 4032 else if (in_mode == (std::ios::in | std::ios::out | std::ios::binary)) |
| 3775 | 4033 retval = "r+b"; |
| 4078 | 4034 else if (in_mode == (std::ios::in | std::ios::out | std::ios::trunc |
| 4035 | std::ios::binary)) | |
| 3775 | 4036 retval = "w+b"; |
| 4078 | 4037 else if (in_mode == (std::ios::in | std::ios::out | std::ios::ate |
| 4038 | std::ios::binary)) | |
| 3775 | 4039 retval = "a+b"; |
| 2117 | 4040 |
| 4041 return retval; | |
| 4042 } | |
| 4043 | |
| 4044 octave_stream_list *octave_stream_list::instance = 0; | |
| 4045 | |
| 2926 | 4046 bool |
| 4047 octave_stream_list::instance_ok (void) | |
| 4048 { | |
| 4049 bool retval = true; | |
| 4050 | |
| 4051 if (! instance) | |
| 4052 instance = new octave_stream_list (); | |
| 4053 | |
| 4054 if (! instance) | |
| 4055 { | |
| 4056 ::error ("unable to create stream list object!"); | |
| 4057 | |
| 4058 retval = false; | |
| 4059 } | |
| 4060 | |
| 4061 return retval; | |
| 4062 } | |
| 4063 | |
| 5353 | 4064 int |
| 6757 | 4065 octave_stream_list::insert (octave_stream& os) |
| 2926 | 4066 { |
| 5353 | 4067 return (instance_ok ()) ? instance->do_insert (os) : -1; |
| 2926 | 4068 } |
| 4069 | |
| 3340 | 4070 octave_stream |
| 3523 | 4071 octave_stream_list::lookup (int fid, const std::string& who) |
| 2926 | 4072 { |
| 3341 | 4073 return (instance_ok ()) ? instance->do_lookup (fid, who) : octave_stream (); |
| 2926 | 4074 } |
| 4075 | |
| 3340 | 4076 octave_stream |
| 3523 | 4077 octave_stream_list::lookup (const octave_value& fid, const std::string& who) |
| 2926 | 4078 { |
| 3341 | 4079 return (instance_ok ()) ? instance->do_lookup (fid, who) : octave_stream (); |
| 2926 | 4080 } |
| 4081 | |
| 4082 int | |
| 3523 | 4083 octave_stream_list::remove (int fid, const std::string& who) |
| 2926 | 4084 { |
| 3341 | 4085 return (instance_ok ()) ? instance->do_remove (fid, who) : -1; |
| 2926 | 4086 } |
| 4087 | |
| 4088 int | |
| 3523 | 4089 octave_stream_list::remove (const octave_value& fid, const std::string& who) |
| 2926 | 4090 { |
| 3341 | 4091 return (instance_ok ()) ? instance->do_remove (fid, who) : -1; |
| 2926 | 4092 } |
| 4093 | |
| 4094 void | |
|
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Jaroslav Hajek <highegg@gmail.com>
parents:
8773
diff
changeset
|
4095 octave_stream_list::clear (bool flush) |
| 2926 | 4096 { |
| 4097 if (instance) | |
|
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erase closed files from file list & cache lookup
Jaroslav Hajek <highegg@gmail.com>
parents:
8773
diff
changeset
|
4098 instance->do_clear (flush); |
| 2926 | 4099 } |
| 4100 | |
| 4101 string_vector | |
| 4102 octave_stream_list::get_info (int fid) | |
| 4103 { | |
| 4104 return (instance_ok ()) ? instance->do_get_info (fid) : string_vector (); | |
| 4105 } | |
| 4106 | |
| 4107 string_vector | |
| 4108 octave_stream_list::get_info (const octave_value& fid) | |
| 4109 { | |
| 4110 return (instance_ok ()) ? instance->do_get_info (fid) : string_vector (); | |
| 4111 } | |
| 4112 | |
| 3536 | 4113 std::string |
| 2926 | 4114 octave_stream_list::list_open_files (void) |
| 4115 { | |
| 3523 | 4116 return (instance_ok ()) ? instance->do_list_open_files () : std::string (); |
| 2926 | 4117 } |
| 4118 | |
| 4119 octave_value | |
| 4120 octave_stream_list::open_file_numbers (void) | |
| 4121 { | |
| 4122 return (instance_ok ()) | |
| 4123 ? instance->do_open_file_numbers () : octave_value (); | |
| 4124 } | |
| 4125 | |
| 4126 int | |
| 4127 octave_stream_list::get_file_number (const octave_value& fid) | |
| 4128 { | |
| 4129 return (instance_ok ()) ? instance->do_get_file_number (fid) : -1; | |
| 4130 } | |
| 4131 | |
| 5353 | 4132 int |
| 6757 | 4133 octave_stream_list::do_insert (octave_stream& os) |
| 2117 | 4134 { |
| 6757 | 4135 // Insert item with key corresponding to file-descriptor. |
| 4136 | |
| 4137 int stream_number; | |
| 4138 | |
| 4139 if ((stream_number = os.file_number ()) == -1) | |
| 4140 return stream_number; | |
| 4141 | |
| 4142 // Should we test for "(list.find (stream_number) != list.end ()) && | |
| 4143 // list[stream_number].is_open ()" and respond with "error | |
| 4144 // ("internal error: ...")"? It should not happen except for some | |
| 4145 // bug or if the user has opened a stream with an interpreted | |
| 4146 // command, but closed it directly with a system call in an | |
| 4147 // oct-file; then the kernel knows the fd is free, but Octave does | |
| 4148 // not know. If it happens, it should not do harm here to simply | |
| 4149 // overwrite this entry, although the wrong entry might have done | |
| 4150 // harm before. | |
| 4151 | |
| 4152 if (list.size () < list.max_size ()) | |
| 4153 list[stream_number] = os; | |
| 4154 else | |
| 2117 | 4155 { |
| 6757 | 4156 stream_number = -1; |
| 4157 error ("could not create file id"); | |
| 3340 | 4158 } |
| 2117 | 4159 |
| 5353 | 4160 return stream_number; |
| 6757 | 4161 |
| 2117 | 4162 } |
| 4163 | |
| 3341 | 4164 static void |
| 3523 | 4165 gripe_invalid_file_id (int fid, const std::string& who) |
| 3341 | 4166 { |
| 4167 if (who.empty ()) | |
| 4168 ::error ("invalid stream number = %d", fid); | |
| 4169 else | |
| 4170 ::error ("%s: invalid stream number = %d", who.c_str (), fid); | |
| 4171 } | |
| 4172 | |
| 3340 | 4173 octave_stream |
| 3523 | 4174 octave_stream_list::do_lookup (int fid, const std::string& who) const |
| 2117 | 4175 { |
| 3340 | 4176 octave_stream retval; |
| 2117 | 4177 |
| 6757 | 4178 if (fid >= 0) |
| 4179 { | |
|
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
4180 if (lookup_cache != list.end () && lookup_cache->first == fid) |
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
4181 retval = lookup_cache->second; |
| 6757 | 4182 else |
|
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parents:
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diff
changeset
|
4183 { |
|
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parents:
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diff
changeset
|
4184 ostrl_map::const_iterator iter = list.find (fid); |
|
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parents:
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diff
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|
4185 |
|
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parents:
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diff
changeset
|
4186 if (iter != list.end ()) |
|
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Jaroslav Hajek <highegg@gmail.com>
parents:
8773
diff
changeset
|
4187 { |
|
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erase closed files from file list & cache lookup
Jaroslav Hajek <highegg@gmail.com>
parents:
8773
diff
changeset
|
4188 retval = iter->second; |
|
5d5db7a347c6
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
4189 lookup_cache = iter; |
|
5d5db7a347c6
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
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|
4190 } |
|
5d5db7a347c6
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
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|
4191 else |
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Jaroslav Hajek <highegg@gmail.com>
parents:
8773
diff
changeset
|
4192 gripe_invalid_file_id (fid, who); |
|
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
4193 } |
| 6757 | 4194 } |
| 3341 | 4195 else |
| 4196 gripe_invalid_file_id (fid, who); | |
| 2117 | 4197 |
| 4198 return retval; | |
| 4199 } | |
| 4200 | |
| 3340 | 4201 octave_stream |
| 3341 | 4202 octave_stream_list::do_lookup (const octave_value& fid, |
| 3523 | 4203 const std::string& who) const |
| 2117 | 4204 { |
| 3340 | 4205 octave_stream retval; |
| 2117 | 4206 |
| 4207 int i = get_file_number (fid); | |
| 4208 | |
| 4209 if (! error_state) | |
| 3341 | 4210 retval = do_lookup (i, who); |
| 2117 | 4211 |
| 4212 return retval; | |
| 4213 } | |
| 4214 | |
| 4215 int | |
| 3523 | 4216 octave_stream_list::do_remove (int fid, const std::string& who) |
| 2117 | 4217 { |
| 4218 int retval = -1; | |
| 4219 | |
| 3531 | 4220 // Can't remove stdin (std::cin), stdout (std::cout), or stderr |
| 4221 // (std::cerr). | |
| 2117 | 4222 |
| 6757 | 4223 if (fid > 2) |
| 2117 | 4224 { |
| 6757 | 4225 ostrl_map::iterator iter = list.find (fid); |
| 4226 | |
| 4227 if (iter != list.end ()) | |
| 2117 | 4228 { |
| 6757 | 4229 octave_stream os = iter->second; |
|
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parents:
8773
diff
changeset
|
4230 list.erase (iter); |
|
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parents:
8773
diff
changeset
|
4231 lookup_cache = list.end (); |
|
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
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|
4232 |
|
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parents:
8773
diff
changeset
|
4233 // FIXME: is this check redundant? |
| 6757 | 4234 if (os.is_valid ()) |
| 4235 { | |
| 4236 os.close (); | |
| 4237 retval = 0; | |
| 4238 } | |
| 4239 else | |
| 4240 gripe_invalid_file_id (fid, who); | |
| 2117 | 4241 } |
| 3341 | 4242 else |
| 4243 gripe_invalid_file_id (fid, who); | |
| 2117 | 4244 } |
| 3341 | 4245 else |
| 4246 gripe_invalid_file_id (fid, who); | |
| 2117 | 4247 |
| 4248 return retval; | |
| 4249 } | |
| 4250 | |
| 4251 int | |
| 3523 | 4252 octave_stream_list::do_remove (const octave_value& fid, const std::string& who) |
| 2117 | 4253 { |
| 4254 int retval = -1; | |
| 4255 | |
| 6054 | 4256 if (fid.is_string () && fid.string_value () == "all") |
| 4257 { | |
|
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4258 do_clear (false); |
| 6054 | 4259 |
| 4260 retval = 0; | |
| 4261 } | |
| 4262 else | |
| 4263 { | |
| 4264 int i = get_file_number (fid); | |
| 4265 | |
| 4266 if (! error_state) | |
| 4267 retval = do_remove (i, who); | |
| 4268 } | |
| 2117 | 4269 |
| 4270 return retval; | |
| 4271 } | |
| 4272 | |
| 4273 void | |
|
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4274 octave_stream_list::do_clear (bool flush) |
| 2117 | 4275 { |
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4276 if (flush) |
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parents:
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4277 { |
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parents:
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4278 // Do flush stdout and stderr. |
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parents:
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|
4279 |
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parents:
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4280 list[0].flush (); |
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4281 list[1].flush (); |
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4282 } |
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4283 |
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parents:
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|
4284 octave_stream saved_os[3]; |
| 2117 | 4285 // But don't delete them or stdin. |
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4286 for (ostrl_map::iterator iter = list.begin (); iter != list.end (); iter++) |
| 6757 | 4287 { |
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4288 int fid = iter->first; |
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4289 octave_stream os = iter->second; |
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parents:
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4290 if (fid < 3) |
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|
4291 saved_os[fid] = os; |
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|
4292 else if (os.is_valid ()) |
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|
4293 os.close (); |
| 6757 | 4294 } |
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4295 list.clear (); |
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|
4296 for (int fid = 0; fid < 3; fid++) list[fid] = saved_os[fid]; |
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4297 lookup_cache = list.end (); |
| 2117 | 4298 } |
| 4299 | |
| 4300 string_vector | |
| 4301 octave_stream_list::do_get_info (int fid) const | |
| 4302 { | |
| 4303 string_vector retval; | |
| 4304 | |
| 3340 | 4305 octave_stream os = do_lookup (fid); |
| 2117 | 4306 |
| 3341 | 4307 if (os.is_valid ()) |
| 2117 | 4308 { |
| 4309 retval.resize (3); | |
| 4310 | |
| 3340 | 4311 retval(0) = os.name (); |
| 4312 retval(1) = octave_stream::mode_as_string (os.mode ()); | |
| 4313 retval(2) = oct_mach_info::float_format_as_string (os.float_format ()); | |
| 2117 | 4314 } |
| 4315 else | |
| 3341 | 4316 ::error ("invalid file id = %d", fid); |
| 2117 | 4317 |
| 4318 return retval; | |
| 4319 } | |
| 4320 | |
| 4321 string_vector | |
| 4322 octave_stream_list::do_get_info (const octave_value& fid) const | |
| 4323 { | |
| 4324 string_vector retval; | |
| 4325 | |
| 4326 int conv_err = 0; | |
| 4327 | |
| 4328 int int_fid = convert_to_valid_int (fid, conv_err); | |
| 4329 | |
| 4330 if (! conv_err) | |
| 4331 retval = do_get_info (int_fid); | |
| 4332 else | |
| 2915 | 4333 ::error ("file id must be a file object or integer value"); |
| 2117 | 4334 |
| 4335 return retval; | |
| 4336 } | |
| 4337 | |
| 3536 | 4338 std::string |
| 2117 | 4339 octave_stream_list::do_list_open_files (void) const |
| 4340 { | |
| 3523 | 4341 std::string retval; |
| 2117 | 4342 |
| 5765 | 4343 std::ostringstream buf; |
| 2117 | 4344 |
| 4345 buf << "\n" | |
| 4346 << " number mode arch name\n" | |
| 4347 << " ------ ---- ---- ----\n"; | |
| 4348 | |
| 6757 | 4349 for (ostrl_map::const_iterator p = list.begin (); p != list.end (); p++) |
| 2117 | 4350 { |
| 6757 | 4351 octave_stream os = p->second; |
| 2117 | 4352 |
| 4326 | 4353 buf << " " |
| 4354 << std::setiosflags (std::ios::right) | |
| 6757 | 4355 << std::setw (4) << p->first << " " |
| 4326 | 4356 << std::setiosflags (std::ios::left) |
| 4357 << std::setw (3) | |
| 4358 << octave_stream::mode_as_string (os.mode ()) | |
| 4359 << " " | |
| 4360 << std::setw (9) | |
| 4361 << oct_mach_info::float_format_as_string (os.float_format ()) | |
| 4362 << " " | |
| 4363 << os.name () << "\n"; | |
| 2117 | 4364 } |
| 4365 | |
| 5765 | 4366 buf << "\n"; |
| 4367 | |
| 4368 retval = buf.str (); | |
| 2117 | 4369 |
| 4370 return retval; | |
| 4371 } | |
| 4372 | |
| 4373 octave_value | |
| 4374 octave_stream_list::do_open_file_numbers (void) const | |
| 4375 { | |
| 6757 | 4376 Matrix retval (1, list.size (), 0.0); |
| 2117 | 4377 |
| 4378 int num_open = 0; | |
| 4379 | |
| 6757 | 4380 for (ostrl_map::const_iterator p = list.begin (); p != list.end (); p++) |
| 2117 | 4381 { |
| 6757 | 4382 // Skip stdin, stdout, and stderr. |
| 4383 | |
| 4384 if (p->first > 2 && p->second) | |
| 4385 retval(0,num_open++) = p->first; | |
| 2117 | 4386 } |
| 4387 | |
| 4388 retval.resize ((num_open > 0), num_open); | |
| 4389 | |
| 4390 return retval; | |
| 4391 } | |
| 4392 | |
| 4393 int | |
| 2609 | 4394 octave_stream_list::do_get_file_number (const octave_value& fid) const |
| 2117 | 4395 { |
| 4396 int retval = -1; | |
| 4397 | |
| 4398 if (fid.is_string ()) | |
| 4399 { | |
| 3523 | 4400 std::string nm = fid.string_value (); |
| 2117 | 4401 |
| 6757 | 4402 for (ostrl_map::const_iterator p = list.begin (); p != list.end (); p++) |
| 2117 | 4403 { |
| 6757 | 4404 // stdin (std::cin), stdout (std::cout), and stderr (std::cerr) |
| 4405 // are unnamed. | |
| 4406 | |
| 4407 if (p->first > 2) | |
| 2117 | 4408 { |
| 6757 | 4409 octave_stream os = p->second; |
| 4410 | |
| 4411 if (os && os.name () == nm) | |
| 4412 { | |
| 4413 retval = p->first; | |
| 4414 break; | |
| 4415 } | |
| 2117 | 4416 } |
| 4417 } | |
| 4418 } | |
| 4419 else | |
| 4420 { | |
| 4421 int conv_err = 0; | |
| 4422 | |
| 4423 int int_fid = convert_to_valid_int (fid, conv_err); | |
| 4424 | |
| 4425 if (conv_err) | |
| 3523 | 4426 ::error ("file id must be a file object, std::string, or integer value"); |
| 2117 | 4427 else |
| 4428 retval = int_fid; | |
| 4429 } | |
| 4430 | |
| 4431 return retval; | |
| 4432 } | |
| 4433 | |
| 4434 /* | |
| 4435 ;;; Local Variables: *** | |
| 4436 ;;; mode: C++ *** | |
| 4437 ;;; End: *** | |
| 4438 */ |