Mercurial > hg > octave-lyh
annotate src/oct-stream.cc @ 9309:fb8b8589dd46
Expand documentation for 'complex' function
| author | Rik <rdrider0-list@yahoo.com> |
|---|---|
| date | Sat, 06 Jun 2009 22:01:10 -0700 |
| parents | 4b2147b25e8d |
| children | e793865ede63 |
| 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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Jaroslav Hajek <highegg@gmail.com>
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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 | |
| 3640 | 1073 #define OCTAVE_SCAN(is, fmt, arg) octave_scan (is, fmt, arg) |
| 3636 | 1074 |
| 1075 template <class T> | |
| 1076 std::istream& | |
| 6767 | 1077 octave_scan_1 (std::istream& is, const scanf_format_elt& fmt, T* valptr) |
| 3636 | 1078 { |
| 3779 | 1079 T& ref = *valptr; |
| 1080 | |
| 1081 switch (fmt.type) | |
| 1082 { | |
| 1083 case 'o': | |
| 4926 | 1084 is >> std::oct >> ref >> std::dec; |
| 3779 | 1085 break; |
| 1086 | |
| 1087 case 'x': | |
| 4926 | 1088 is >> std::hex >> ref >> std::dec; |
| 1089 break; | |
| 1090 | |
| 1091 case 'i': | |
| 1092 { | |
| 1093 int c1 = is.get (); | |
| 1094 | |
| 1095 if (! is.eof ()) | |
| 1096 { | |
| 1097 if (c1 == '0') | |
| 1098 { | |
|
7709
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parents:
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changeset
|
1099 int c2 = is.peek (); |
| 4926 | 1100 |
| 1101 if (c2 == 'x' || c2 == 'X') | |
|
7709
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|
1102 { |
|
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diff
changeset
|
1103 is.ignore (); |
|
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parents:
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|
1104 if (std::isxdigit (is.peek ())) |
|
fa41af732801
octave_scan_1: fix reading of hex numbers
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diff
changeset
|
1105 is >> std::hex >> ref >> std::dec; |
|
fa41af732801
octave_scan_1: fix reading of hex numbers
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diff
changeset
|
1106 else |
|
fa41af732801
octave_scan_1: fix reading of hex numbers
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diff
changeset
|
1107 ref = 0; |
|
fa41af732801
octave_scan_1: fix reading of hex numbers
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parents:
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changeset
|
1108 } |
| 4926 | 1109 else |
| 4927 | 1110 { |
| 1111 if (c2 == '0' || c2 == '1' || c2 == '2' | |
| 1112 || c2 == '3' || c2 == '4' || c2 == '5' | |
| 1113 || c2 == '6' || c2 == '7') | |
| 1114 is >> std::oct >> ref >> std::dec; | |
| 1115 else | |
| 1116 ref = 0; | |
| 1117 } | |
| 4926 | 1118 } |
| 1119 else | |
| 1120 { | |
| 1121 is.putback (c1); | |
| 1122 | |
| 1123 is >> ref; | |
| 1124 } | |
| 1125 } | |
| 1126 } | |
| 3779 | 1127 break; |
| 1128 | |
| 1129 default: | |
| 1130 is >> ref; | |
| 1131 break; | |
| 1132 } | |
| 3639 | 1133 |
| 3638 | 1134 return is; |
| 3636 | 1135 } |
| 1136 | |
| 6767 | 1137 template <class T> |
| 1138 std::istream& | |
| 1139 octave_scan (std::istream& is, const scanf_format_elt& fmt, T* valptr) | |
| 1140 { | |
| 1141 if (fmt.width) | |
| 1142 { | |
| 1143 // Limit input to fmt.width characters by reading into a | |
| 1144 // temporary stringstream buffer. | |
| 1145 | |
| 1146 std::string tmp; | |
| 1147 | |
| 1148 is.width (fmt.width); | |
| 1149 is >> tmp; | |
| 1150 | |
| 1151 std::istringstream ss (tmp); | |
| 1152 | |
| 1153 octave_scan_1 (ss, fmt, valptr); | |
| 1154 } | |
| 1155 else | |
| 1156 octave_scan_1 (is, fmt, valptr); | |
| 1157 | |
| 1158 return is; | |
| 1159 } | |
| 1160 | |
| 3779 | 1161 // Note that this specialization is only used for reading characters, not |
| 1162 // character strings. See BEGIN_S_CONVERSION for details. | |
| 1163 | |
| 1164 template<> | |
| 1165 std::istream& | |
| 4661 | 1166 octave_scan<> (std::istream& is, const scanf_format_elt& /* fmt */, |
| 1167 char* valptr) | |
| 3779 | 1168 { |
| 1169 return is >> valptr; | |
| 1170 } | |
| 3636 | 1171 |
| 4595 | 1172 template std::istream& |
| 1173 octave_scan (std::istream&, const scanf_format_elt&, int*); | |
| 1174 | |
| 1175 template std::istream& | |
| 1176 octave_scan (std::istream&, const scanf_format_elt&, long int*); | |
| 1177 | |
| 1178 template std::istream& | |
| 1179 octave_scan (std::istream&, const scanf_format_elt&, short int*); | |
| 1180 | |
| 1181 template std::istream& | |
| 1182 octave_scan (std::istream&, const scanf_format_elt&, unsigned int*); | |
| 1183 | |
| 1184 template std::istream& | |
| 1185 octave_scan (std::istream&, const scanf_format_elt&, unsigned long int*); | |
| 1186 | |
| 1187 template std::istream& | |
| 1188 octave_scan (std::istream&, const scanf_format_elt&, unsigned short int*); | |
| 1189 | |
| 1190 #if 0 | |
| 1191 template std::istream& | |
| 1192 octave_scan (std::istream&, const scanf_format_elt&, float*); | |
| 1193 #endif | |
| 1194 | |
| 5403 | 1195 template<> |
| 5176 | 1196 std::istream& |
| 5403 | 1197 octave_scan<> (std::istream& is, const scanf_format_elt& fmt, double* valptr) |
| 5176 | 1198 { |
| 1199 double& ref = *valptr; | |
| 1200 | |
| 1201 switch (fmt.type) | |
| 1202 { | |
| 1203 case 'e': | |
| 1204 case 'f': | |
| 1205 case 'g': | |
| 1206 { | |
| 5259 | 1207 int c1 = EOF; |
| 5176 | 1208 |
| 1209 while (is && (c1 = is.get ()) != EOF && isspace (c1)) | |
| 1210 /* skip whitespace */; | |
| 1211 | |
| 1212 if (c1 != EOF) | |
| 1213 { | |
| 1214 if (c1 == 'N') | |
| 1215 { | |
| 1216 int c2 = is.get (); | |
| 1217 | |
| 1218 if (c2 != EOF) | |
| 1219 { | |
| 1220 if (c2 == 'A') | |
| 1221 { | |
| 1222 int c3 = is.get (); | |
| 1223 | |
| 1224 if (c3 != EOF) | |
| 1225 { | |
| 1226 is.putback (c3); | |
| 1227 | |
| 1228 if (isspace (c3) || ispunct (c3)) | |
| 1229 ref = octave_NA; | |
| 1230 else | |
| 1231 { | |
| 1232 is.putback (c2); | |
| 1233 is.putback (c1); | |
| 1234 | |
| 1235 is >> ref; | |
| 1236 } | |
| 1237 } | |
| 1238 else | |
| 1239 { | |
| 1240 is.clear (); | |
| 1241 | |
| 1242 ref = octave_NA; | |
| 1243 } | |
| 1244 } | |
| 1245 else if (c2 == 'a') | |
| 1246 { | |
| 1247 int c3 = is.get (); | |
| 1248 | |
| 1249 if (c3 != EOF) | |
| 1250 { | |
| 1251 if (c3 == 'N') | |
| 1252 { | |
| 1253 int c4 = is.get (); | |
| 1254 | |
| 1255 if (c4 != EOF) | |
| 1256 { | |
| 1257 is.putback (c4); | |
| 1258 | |
| 1259 if (isspace (c4) || ispunct (c4)) | |
| 1260 ref = octave_NaN; | |
| 1261 else | |
| 1262 { | |
| 1263 is.putback (c3); | |
| 1264 is.putback (c2); | |
| 1265 is.putback (c1); | |
| 1266 | |
| 1267 is >> ref; | |
| 1268 } | |
| 1269 } | |
| 1270 else | |
| 1271 { | |
| 1272 is.clear (); | |
| 1273 | |
| 1274 ref = octave_NaN; | |
| 1275 } | |
| 1276 } | |
| 1277 else | |
| 1278 { | |
| 1279 is.putback (c3); | |
| 1280 is.putback (c2); | |
| 1281 is.putback (c1); | |
| 1282 | |
| 1283 is >> ref; | |
| 1284 } | |
| 1285 } | |
| 1286 } | |
| 1287 else | |
| 1288 { | |
| 1289 is.putback (c2); | |
| 1290 is.putback (c1); | |
| 1291 | |
| 1292 is >> ref; | |
| 1293 } | |
| 1294 } | |
| 1295 } | |
| 1296 else if (c1 == 'I') | |
| 1297 { | |
| 1298 int c2 = is.get (); | |
| 1299 | |
| 1300 if (c2 != EOF) | |
| 1301 { | |
| 1302 if (c2 == 'n') | |
| 1303 { | |
| 1304 int c3 = is.get (); | |
| 1305 | |
| 1306 if (c3 != EOF) | |
| 6483 | 1307 { |
| 1308 if (c3 == 'f') | |
| 1309 { | |
| 1310 int c4 = is.get (); | |
| 1311 | |
| 1312 if (c4 != EOF) | |
| 1313 { | |
| 1314 is.putback (c4); | |
| 1315 | |
| 1316 if (isspace (c4) || ispunct (c4)) | |
| 1317 ref = octave_Inf; | |
| 1318 else | |
| 1319 { | |
| 1320 is.putback (c3); | |
| 1321 is.putback (c2); | |
| 1322 is.putback (c1); | |
| 1323 | |
| 1324 is >> ref; | |
| 1325 } | |
| 1326 } | |
| 1327 else | |
| 1328 { | |
| 1329 is.clear (); | |
| 1330 | |
| 5176 | 1331 ref = octave_Inf; |
| 6483 | 1332 } |
| 1333 } | |
| 1334 else | |
| 1335 { | |
| 1336 is.putback (c3); | |
| 1337 is.putback (c2); | |
| 1338 is.putback (c1); | |
| 1339 | |
| 1340 is >> ref; | |
| 1341 } | |
| 1342 } | |
| 1343 else | |
| 1344 { | |
| 1345 is.putback (c2); | |
| 1346 is.putback (c1); | |
| 1347 | |
| 1348 is >> ref; | |
| 1349 } | |
| 5176 | 1350 } |
| 1351 } | |
| 1352 } | |
| 1353 else | |
| 1354 { | |
| 1355 is.putback (c1); | |
| 1356 | |
| 1357 is >> ref; | |
| 1358 } | |
| 1359 } | |
| 1360 } | |
| 1361 break; | |
| 1362 | |
| 1363 default: | |
| 1364 panic_impossible (); | |
| 1365 break; | |
| 1366 } | |
| 1367 | |
| 1368 return is; | |
| 1369 } | |
| 1370 | |
| 2572 | 1371 template <class T> |
| 1372 void | |
| 3636 | 1373 do_scanf_conv (std::istream& is, const scanf_format_elt& fmt, |
| 5275 | 1374 T valptr, Matrix& mval, double *data, octave_idx_type& idx, |
| 1375 octave_idx_type& conversion_count, octave_idx_type nr, octave_idx_type max_size, | |
| 3636 | 1376 bool discard) |
| 2572 | 1377 { |
| 3640 | 1378 OCTAVE_SCAN (is, fmt, valptr); |
| 2572 | 1379 |
| 1380 if (is) | |
| 1381 { | |
| 1382 if (idx == max_size && ! discard) | |
| 1383 { | |
| 1384 max_size *= 2; | |
| 1385 | |
| 1386 if (nr > 0) | |
| 1387 mval.resize (nr, max_size / nr, 0.0); | |
| 1388 else | |
| 1389 mval.resize (max_size, 1, 0.0); | |
| 1390 | |
| 1391 data = mval.fortran_vec (); | |
| 1392 } | |
| 1393 | |
| 1394 if (! discard) | |
| 3268 | 1395 { |
| 3559 | 1396 conversion_count++; |
| 3268 | 1397 data[idx++] = *(valptr); |
| 1398 } | |
| 2572 | 1399 } |
| 1400 } | |
| 1401 | |
| 1402 template void | |
| 3878 | 1403 do_scanf_conv (std::istream&, const scanf_format_elt&, int*, |
| 5275 | 1404 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 2572 | 1405 |
| 3233 | 1406 template void |
| 3636 | 1407 do_scanf_conv (std::istream&, const scanf_format_elt&, long int*, |
| 5275 | 1408 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3233 | 1409 |
| 1410 template void | |
| 3636 | 1411 do_scanf_conv (std::istream&, const scanf_format_elt&, short int*, |
| 5275 | 1412 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3233 | 1413 |
| 3878 | 1414 template void |
| 1415 do_scanf_conv (std::istream&, const scanf_format_elt&, unsigned int*, | |
| 5275 | 1416 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3878 | 1417 |
| 1418 template void | |
| 1419 do_scanf_conv (std::istream&, const scanf_format_elt&, unsigned long int*, | |
| 5275 | 1420 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3878 | 1421 |
| 1422 template void | |
| 1423 do_scanf_conv (std::istream&, const scanf_format_elt&, unsigned short int*, | |
| 5275 | 1424 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3878 | 1425 |
| 2600 | 1426 #if 0 |
| 2572 | 1427 template void |
| 3636 | 1428 do_scanf_conv (std::istream&, const scanf_format_elt&, float*, |
| 5275 | 1429 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 2600 | 1430 #endif |
| 2572 | 1431 |
| 1432 template void | |
| 3636 | 1433 do_scanf_conv (std::istream&, const scanf_format_elt&, double*, |
| 5275 | 1434 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 2572 | 1435 |
| 3483 | 1436 #define DO_WHITESPACE_CONVERSION() \ |
| 1437 do \ | |
| 1438 { \ | |
| 1439 int c = EOF; \ | |
| 1440 \ | |
| 1441 while (is && (c = is.get ()) != EOF && isspace (c)) \ | |
| 1442 /* skip whitespace */; \ | |
| 1443 \ | |
| 1444 if (c != EOF) \ | |
| 1445 is.putback (c); \ | |
| 1446 } \ | |
| 1447 while (0) | |
| 1448 | |
| 1449 #define DO_LITERAL_CONVERSION() \ | |
| 1450 do \ | |
| 1451 { \ | |
| 1452 int c = EOF; \ | |
| 1453 \ | |
| 1454 int n = strlen (fmt); \ | |
| 1455 int i = 0; \ | |
| 1456 \ | |
| 1457 while (i < n && is && (c = is.get ()) != EOF) \ | |
| 1458 { \ | |
| 5326 | 1459 if (c == static_cast<unsigned char> (fmt[i])) \ |
| 3483 | 1460 { \ |
| 1461 i++; \ | |
| 1462 continue; \ | |
| 1463 } \ | |
| 1464 else \ | |
| 1465 { \ | |
| 1466 is.putback (c); \ | |
| 1467 break; \ | |
| 1468 } \ | |
| 1469 } \ | |
| 1470 \ | |
| 1471 if (i != n) \ | |
| 3538 | 1472 is.setstate (std::ios::failbit); \ |
| 3483 | 1473 } \ |
| 1474 while (0) | |
| 1475 | |
| 3640 | 1476 #define DO_PCT_CONVERSION() \ |
| 1477 do \ | |
| 1478 { \ | |
| 1479 int c = is.get (); \ | |
| 1480 \ | |
| 1481 if (c != EOF) \ | |
| 1482 { \ | |
| 1483 if (c != '%') \ | |
| 1484 { \ | |
| 1485 is.putback (c); \ | |
| 1486 is.setstate (std::ios::failbit); \ | |
| 1487 } \ | |
| 1488 } \ | |
| 1489 else \ | |
| 1490 is.setstate (std::ios::failbit); \ | |
| 1491 } \ | |
| 1492 while (0) | |
| 1493 | |
| 3483 | 1494 #define BEGIN_C_CONVERSION() \ |
| 3538 | 1495 is.unsetf (std::ios::skipws); \ |
| 3483 | 1496 \ |
| 1497 int width = elt->width ? elt->width : 1; \ | |
| 1498 \ | |
| 4051 | 1499 char *tbuf = new char[width + 1]; \ |
| 3483 | 1500 \ |
| 1501 int c = EOF; \ | |
| 1502 int n = 0; \ | |
| 1503 \ | |
| 1504 while (is && n < width && (c = is.get ()) != EOF) \ | |
| 5760 | 1505 tbuf[n++] = static_cast<char> (c); \ |
| 4051 | 1506 \ |
| 1507 tbuf[n] = '\0'; \ | |
| 3483 | 1508 \ |
| 5266 | 1509 if (n > 0 && c == EOF) \ |
| 1510 is.clear (); \ | |
| 1511 \ | |
| 4051 | 1512 std::string tmp = tbuf; \ |
| 1513 \ | |
| 1514 delete [] tbuf | |
| 3483 | 1515 |
| 1516 // For a `%s' format, skip initial whitespace and then read until the | |
| 5338 | 1517 // next whitespace character or until WIDTH characters have been read. |
| 3483 | 1518 #define BEGIN_S_CONVERSION() \ |
| 1519 int width = elt->width; \ | |
| 1520 \ | |
| 4051 | 1521 std::string tmp; \ |
| 3483 | 1522 \ |
| 1523 do \ | |
| 1524 { \ | |
| 1525 if (width) \ | |
| 5338 | 1526 { \ |
| 1527 char *tbuf = new char [width+1]; \ | |
| 1528 \ | |
| 1529 int c = EOF; \ | |
| 1530 \ | |
| 1531 int n = 0; \ | |
| 1532 \ | |
| 1533 while (is && (c = is.get ()) != EOF) \ | |
| 1534 { \ | |
| 1535 if (! isspace (c)) \ | |
| 1536 { \ | |
| 1537 tbuf[n++] = static_cast<char> (c); \ | |
| 1538 break; \ | |
| 1539 } \ | |
| 1540 } \ | |
| 4051 | 1541 \ |
| 5338 | 1542 while (is && n < width && (c = is.get ()) != EOF) \ |
| 1543 { \ | |
| 1544 if (isspace (c)) \ | |
| 1545 { \ | |
| 1546 is.putback (c); \ | |
| 1547 break; \ | |
| 1548 } \ | |
| 1549 else \ | |
| 1550 tbuf[n++] = static_cast<char> (c); \ | |
| 1551 } \ | |
| 3483 | 1552 \ |
| 5338 | 1553 tbuf[n] = '\0'; \ |
| 1554 \ | |
| 1555 if (n > 0 && c == EOF) \ | |
| 1556 is.clear (); \ | |
| 1557 \ | |
| 4051 | 1558 tmp = tbuf; \ |
| 5338 | 1559 \ |
| 4051 | 1560 delete [] tbuf; \ |
| 5338 | 1561 } \ |
| 3483 | 1562 else \ |
| 5338 | 1563 { \ |
| 1564 is >> std::ws >> tmp; \ | |
| 1565 } \ | |
| 3483 | 1566 } \ |
| 1567 while (0) | |
| 1568 | |
| 1569 // This format must match a nonempty sequence of characters. | |
| 1570 #define BEGIN_CHAR_CLASS_CONVERSION() \ | |
| 1571 int width = elt->width; \ | |
| 1572 \ | |
| 4051 | 1573 std::string tmp; \ |
| 3483 | 1574 \ |
| 1575 do \ | |
| 1576 { \ | |
| 7426 | 1577 if (! width) \ |
| 7427 | 1578 width = INT_MAX; \ |
| 1579 \ | |
| 7426 | 1580 std::ostringstream buf; \ |
| 1581 \ | |
| 1582 std::string char_class = elt->char_class; \ | |
| 4051 | 1583 \ |
| 7426 | 1584 int c = EOF; \ |
| 3483 | 1585 \ |
| 7426 | 1586 if (elt->type == '[') \ |
| 1587 { \ | |
| 1588 int chars_read = 0; \ | |
| 1589 while (is && chars_read++ < width && (c = is.get ()) != EOF \ | |
| 8021 | 1590 && char_class.find (c) != std::string::npos) \ |
| 7426 | 1591 buf << static_cast<char> (c); \ |
| 3483 | 1592 } \ |
| 1593 else \ | |
| 1594 { \ | |
| 7426 | 1595 int chars_read = 0; \ |
| 1596 while (is && chars_read++ < width && (c = is.get ()) != EOF \ | |
| 8021 | 1597 && char_class.find (c) == std::string::npos) \ |
| 7426 | 1598 buf << static_cast<char> (c); \ |
| 1599 } \ | |
| 3483 | 1600 \ |
| 7426 | 1601 if (width == INT_MAX && c != EOF) \ |
| 1602 is.putback (c); \ | |
| 3483 | 1603 \ |
| 7426 | 1604 tmp = buf.str (); \ |
| 3483 | 1605 \ |
| 7426 | 1606 if (tmp.empty ()) \ |
| 1607 is.setstate (std::ios::failbit); \ | |
| 3483 | 1608 } \ |
| 1609 while (0) | |
| 1610 | |
| 3410 | 1611 #define FINISH_CHARACTER_CONVERSION() \ |
| 1612 do \ | |
| 1613 { \ | |
| 4051 | 1614 width = tmp.length (); \ |
| 3410 | 1615 \ |
| 1616 if (is) \ | |
| 1617 { \ | |
| 1618 int i = 0; \ | |
| 1619 \ | |
| 1620 if (! discard) \ | |
| 1621 { \ | |
| 1622 conversion_count++; \ | |
| 1623 \ | |
| 1624 while (i < width && tmp[i] != '\0') \ | |
| 1625 { \ | |
| 1626 if (data_index == max_size) \ | |
| 1627 { \ | |
| 1628 max_size *= 2; \ | |
| 1629 \ | |
| 4420 | 1630 if (all_char_conv) \ |
| 3410 | 1631 { \ |
| 4420 | 1632 if (one_elt_size_spec) \ |
| 3410 | 1633 mval.resize (1, max_size, 0.0); \ |
| 4420 | 1634 else if (nr > 0) \ |
| 1635 mval.resize (nr, max_size / nr, 0.0); \ | |
| 3410 | 1636 else \ |
| 4420 | 1637 panic_impossible (); \ |
| 3410 | 1638 } \ |
| 4420 | 1639 else if (nr > 0) \ |
| 6970 | 1640 mval.resize (nr, max_size / nr, 0.0); \ |
| 4420 | 1641 else \ |
| 1642 mval.resize (max_size, 1, 0.0); \ | |
| 3410 | 1643 \ |
| 1644 data = mval.fortran_vec (); \ | |
| 1645 } \ | |
| 1646 \ | |
| 1647 data[data_index++] = tmp[i++]; \ | |
| 1648 } \ | |
| 1649 } \ | |
| 1650 } \ | |
| 1651 } \ | |
| 1652 while (0) | |
| 2117 | 1653 |
| 1654 octave_value | |
| 1655 octave_base_stream::do_scanf (scanf_format_list& fmt_list, | |
| 5275 | 1656 octave_idx_type nr, octave_idx_type nc, bool one_elt_size_spec, |
| 1657 octave_idx_type& conversion_count, const std::string& who) | |
| 2117 | 1658 { |
|
8773
9e3111d203c0
disallow reading from stdin while running interactively
John W. Eaton <jwe@octave.org>
parents:
8739
diff
changeset
|
1659 octave_value retval = Matrix (); |
|
9e3111d203c0
disallow reading from stdin while running interactively
John W. Eaton <jwe@octave.org>
parents:
8739
diff
changeset
|
1660 |
|
9e3111d203c0
disallow reading from stdin while running interactively
John W. Eaton <jwe@octave.org>
parents:
8739
diff
changeset
|
1661 if ((interactive || forced_interactive) && file_number () == 0) |
|
9e3111d203c0
disallow reading from stdin while running interactively
John W. Eaton <jwe@octave.org>
parents:
8739
diff
changeset
|
1662 { |
|
9e3111d203c0
disallow reading from stdin while running interactively
John W. Eaton <jwe@octave.org>
parents:
8739
diff
changeset
|
1663 ::error ("%s: unable to read from stdin while running interactively", |
|
9e3111d203c0
disallow reading from stdin while running interactively
John W. Eaton <jwe@octave.org>
parents:
8739
diff
changeset
|
1664 who.c_str ()); |
|
9e3111d203c0
disallow reading from stdin while running interactively
John W. Eaton <jwe@octave.org>
parents:
8739
diff
changeset
|
1665 |
|
9e3111d203c0
disallow reading from stdin while running interactively
John W. Eaton <jwe@octave.org>
parents:
8739
diff
changeset
|
1666 return retval; |
|
9e3111d203c0
disallow reading from stdin while running interactively
John W. Eaton <jwe@octave.org>
parents:
8739
diff
changeset
|
1667 } |
|
9e3111d203c0
disallow reading from stdin while running interactively
John W. Eaton <jwe@octave.org>
parents:
8739
diff
changeset
|
1668 |
| 3268 | 1669 conversion_count = 0; |
| 1670 | |
| 3640 | 1671 int nconv = fmt_list.num_conversions (); |
| 1672 | |
| 5275 | 1673 octave_idx_type data_index = 0; |
| 2121 | 1674 |
| 3268 | 1675 if (nr == 0 || nc == 0) |
| 1676 { | |
| 1677 if (one_elt_size_spec) | |
| 1678 nc = 0; | |
| 1679 | |
| 1680 return Matrix (nr, nc, 0.0); | |
| 1681 } | |
| 1682 | |
| 3523 | 1683 std::istream *isp = input_stream (); |
| 2117 | 1684 |
| 1685 bool all_char_conv = fmt_list.all_character_conversions (); | |
| 1686 | |
| 1687 Matrix mval; | |
| 1688 double *data = 0; | |
| 5275 | 1689 octave_idx_type max_size = 0; |
| 1690 octave_idx_type max_conv = 0; | |
| 1691 | |
| 1692 octave_idx_type final_nr = 0; | |
| 1693 octave_idx_type final_nc = 0; | |
| 2117 | 1694 |
| 3268 | 1695 if (all_char_conv) |
| 1696 { | |
| 4420 | 1697 // Any of these could be resized later (if we have %s |
| 1698 // conversions, we may read more than one element for each | |
| 1699 // conversion). | |
| 1700 | |
| 3268 | 1701 if (one_elt_size_spec) |
| 1702 { | |
| 3410 | 1703 max_size = 512; |
| 1704 mval.resize (1, max_size, 0.0); | |
| 1705 | |
| 3268 | 1706 if (nr > 0) |
| 1707 max_conv = nr; | |
| 1708 } | |
| 4420 | 1709 else if (nr > 0) |
| 3268 | 1710 { |
| 4420 | 1711 if (nc > 0) |
| 1712 { | |
| 1713 mval.resize (nr, nc, 0.0); | |
| 1714 max_size = max_conv = nr * nc; | |
| 1715 } | |
| 1716 else | |
| 1717 { | |
| 1718 mval.resize (nr, 32, 0.0); | |
| 1719 max_size = nr * 32; | |
| 1720 } | |
| 3268 | 1721 } |
| 4420 | 1722 else |
| 1723 panic_impossible (); | |
| 3268 | 1724 } |
| 1725 else if (nr > 0) | |
| 2117 | 1726 { |
| 1727 if (nc > 0) | |
| 1728 { | |
| 4420 | 1729 // Will not resize later. |
| 2117 | 1730 mval.resize (nr, nc, 0.0); |
| 1731 max_size = nr * nc; | |
| 3268 | 1732 max_conv = max_size; |
| 2117 | 1733 } |
| 1734 else | |
| 1735 { | |
| 4420 | 1736 // Maybe resize later. |
| 2117 | 1737 mval.resize (nr, 32, 0.0); |
| 2121 | 1738 max_size = nr * 32; |
| 2117 | 1739 } |
| 1740 } | |
| 1741 else | |
| 1742 { | |
| 4420 | 1743 // Maybe resize later. |
| 2117 | 1744 mval.resize (32, 1, 0.0); |
| 1745 max_size = 32; | |
| 1746 } | |
| 1747 | |
| 4420 | 1748 data = mval.fortran_vec (); |
| 1749 | |
| 2117 | 1750 if (isp) |
| 1751 { | |
| 3523 | 1752 std::istream& is = *isp; |
| 2117 | 1753 |
| 1754 const scanf_format_elt *elt = fmt_list.first (); | |
| 1755 | |
| 3538 | 1756 std::ios::fmtflags flags = is.flags (); |
| 2213 | 1757 |
| 2117 | 1758 for (;;) |
| 1759 { | |
| 4153 | 1760 OCTAVE_QUIT; |
| 1761 | |
| 2117 | 1762 if (elt) |
| 1763 { | |
| 3268 | 1764 if (max_conv > 0 && conversion_count == max_conv) |
| 1765 { | |
| 1766 if (all_char_conv && one_elt_size_spec) | |
| 1767 { | |
| 1768 final_nr = 1; | |
| 1769 final_nc = data_index; | |
| 1770 } | |
| 1771 else | |
| 1772 { | |
| 1773 final_nr = nr; | |
| 1774 final_nc = (data_index - 1) / nr + 1; | |
| 1775 } | |
| 1776 | |
| 1777 break; | |
| 1778 } | |
| 1779 else if (data_index == max_size) | |
| 2117 | 1780 { |
| 3410 | 1781 max_size *= 2; |
| 1782 | |
| 4420 | 1783 if (all_char_conv) |
| 2687 | 1784 { |
| 4420 | 1785 if (one_elt_size_spec) |
| 3410 | 1786 mval.resize (1, max_size, 0.0); |
| 4420 | 1787 else if (nr > 0) |
| 1788 mval.resize (nr, max_size / nr, 0.0); | |
| 3410 | 1789 else |
| 4420 | 1790 panic_impossible (); |
| 2687 | 1791 } |
| 4420 | 1792 else if (nr > 0) |
| 6970 | 1793 mval.resize (nr, max_size / nr, 0.0); |
| 4420 | 1794 else |
| 1795 mval.resize (max_size, 1, 0.0); | |
| 3410 | 1796 |
| 1797 data = mval.fortran_vec (); | |
| 2117 | 1798 } |
| 1799 | |
| 1800 const char *fmt = elt->text; | |
| 1801 | |
| 1802 bool discard = elt->discard; | |
| 1803 | |
| 1804 switch (elt->type) | |
| 1805 { | |
| 3483 | 1806 case scanf_format_elt::whitespace_conversion: |
| 1807 DO_WHITESPACE_CONVERSION (); | |
| 1808 break; | |
| 1809 | |
| 1810 case scanf_format_elt::literal_conversion: | |
| 1811 DO_LITERAL_CONVERSION (); | |
| 1812 break; | |
| 1813 | |
| 2117 | 1814 case '%': |
| 3640 | 1815 DO_PCT_CONVERSION (); |
| 3483 | 1816 break; |
| 2117 | 1817 |
| 3878 | 1818 case 'd': case 'i': |
| 2117 | 1819 { |
| 3233 | 1820 switch (elt->modifier) |
| 1821 { | |
| 1822 case 'h': | |
| 1823 { | |
| 1824 short int tmp; | |
| 3779 | 1825 do_scanf_conv (is, *elt, &tmp, mval, data, |
| 3268 | 1826 data_index, conversion_count, |
| 3233 | 1827 nr, max_size, discard); |
| 1828 } | |
| 3483 | 1829 break; |
| 3233 | 1830 |
| 1831 case 'l': | |
| 1832 { | |
| 1833 long int tmp; | |
| 3779 | 1834 do_scanf_conv (is, *elt, &tmp, mval, data, |
| 3268 | 1835 data_index, conversion_count, |
| 3233 | 1836 nr, max_size, discard); |
| 1837 } | |
| 3483 | 1838 break; |
| 3233 | 1839 |
| 1840 default: | |
| 1841 { | |
| 1842 int tmp; | |
| 3779 | 1843 do_scanf_conv (is, *elt, &tmp, mval, data, |
| 3268 | 1844 data_index, conversion_count, |
| 3233 | 1845 nr, max_size, discard); |
| 1846 } | |
| 3483 | 1847 break; |
| 3233 | 1848 } |
| 2117 | 1849 } |
| 3483 | 1850 break; |
| 2117 | 1851 |
| 3878 | 1852 case 'o': case 'u': case 'x': |
| 1853 { | |
| 1854 switch (elt->modifier) | |
| 1855 { | |
| 1856 case 'h': | |
| 1857 { | |
| 1858 unsigned short int tmp; | |
| 1859 do_scanf_conv (is, *elt, &tmp, mval, data, | |
| 1860 data_index, conversion_count, | |
| 1861 nr, max_size, discard); | |
| 1862 } | |
| 1863 break; | |
| 1864 | |
| 1865 case 'l': | |
| 1866 { | |
| 1867 unsigned long int tmp; | |
| 1868 do_scanf_conv (is, *elt, &tmp, mval, data, | |
| 1869 data_index, conversion_count, | |
| 1870 nr, max_size, discard); | |
| 1871 } | |
| 1872 break; | |
| 1873 | |
| 1874 default: | |
| 1875 { | |
| 1876 unsigned int tmp; | |
| 1877 do_scanf_conv (is, *elt, &tmp, mval, data, | |
| 1878 data_index, conversion_count, | |
| 1879 nr, max_size, discard); | |
| 1880 } | |
| 1881 break; | |
| 1882 } | |
| 1883 } | |
| 1884 break; | |
| 1885 | |
| 2117 | 1886 case 'e': case 'f': case 'g': |
| 1887 { | |
| 2600 | 1888 double tmp; |
| 1889 | |
| 3779 | 1890 do_scanf_conv (is, *elt, &tmp, mval, data, |
| 3268 | 1891 data_index, conversion_count, |
| 2600 | 1892 nr, max_size, discard); |
| 2117 | 1893 } |
| 3483 | 1894 break; |
| 2117 | 1895 |
| 2213 | 1896 case 'c': |
| 3410 | 1897 { |
| 3483 | 1898 BEGIN_C_CONVERSION (); |
| 3410 | 1899 |
| 1900 FINISH_CHARACTER_CONVERSION (); | |
| 3483 | 1901 |
| 1902 is.setf (flags); | |
| 3410 | 1903 } |
| 1904 break; | |
| 2213 | 1905 |
| 2117 | 1906 case 's': |
| 1907 { | |
| 3483 | 1908 BEGIN_S_CONVERSION (); |
| 3268 | 1909 |
| 3410 | 1910 FINISH_CHARACTER_CONVERSION (); |
| 2117 | 1911 } |
| 3483 | 1912 break; |
| 1913 | |
| 1914 case '[': case '^': | |
| 1915 { | |
| 1916 BEGIN_CHAR_CLASS_CONVERSION (); | |
| 1917 | |
| 1918 FINISH_CHARACTER_CONVERSION (); | |
| 1919 } | |
| 1920 break; | |
| 1921 | |
| 1922 case 'p': | |
| 4468 | 1923 error ("%s: unsupported format specifier", who.c_str ()); |
| 2117 | 1924 break; |
| 1925 | |
| 1926 default: | |
| 4468 | 1927 error ("%s: internal format error", who.c_str ()); |
| 2117 | 1928 break; |
| 1929 } | |
| 1930 | |
| 1931 if (! ok ()) | |
| 1932 { | |
| 1933 break; | |
| 1934 } | |
| 1935 else if (! is) | |
| 1936 { | |
| 3268 | 1937 if (all_char_conv) |
| 2117 | 1938 { |
| 3268 | 1939 if (one_elt_size_spec) |
| 1940 { | |
| 1941 final_nr = 1; | |
| 1942 final_nc = data_index; | |
| 1943 } | |
| 1944 else if (data_index > nr) | |
| 2117 | 1945 { |
| 2759 | 1946 final_nr = nr; |
| 3268 | 1947 final_nc = (data_index - 1) / nr + 1; |
| 2117 | 1948 } |
| 1949 else | |
| 1950 { | |
| 3268 | 1951 final_nr = data_index; |
| 1952 final_nc = 1; | |
| 1953 } | |
| 1954 } | |
| 1955 else if (nr > 0) | |
| 1956 { | |
| 1957 if (data_index > nr) | |
| 1958 { | |
| 1959 final_nr = nr; | |
| 1960 final_nc = (data_index - 1) / nr + 1; | |
| 1961 } | |
| 1962 else | |
| 1963 { | |
| 1964 final_nr = data_index; | |
| 2117 | 1965 final_nc = 1; |
| 1966 } | |
| 1967 } | |
| 1968 else | |
| 1969 { | |
| 3268 | 1970 final_nr = data_index; |
| 2759 | 1971 final_nc = 1; |
| 1972 } | |
| 1973 | |
| 3337 | 1974 // If it looks like we have a matching failure, then |
| 1975 // reset the failbit in the stream state. | |
| 1976 | |
| 3538 | 1977 if (is.rdstate () & std::ios::failbit) |
| 1978 is.clear (is.rdstate () & (~std::ios::failbit)); | |
| 3337 | 1979 |
| 5775 | 1980 // FIXME -- is this the right thing to do? |
| 3342 | 1981 |
| 1982 if (interactive && name () == "stdin") | |
| 2759 | 1983 { |
| 1984 is.clear (); | |
| 1985 | |
| 1986 // Skip to end of line. | |
| 1987 | |
| 1988 bool err; | |
| 4468 | 1989 do_gets (-1, err, false, who); |
| 2117 | 1990 } |
| 1991 | |
| 1992 break; | |
| 1993 } | |
| 1994 } | |
| 1995 else | |
| 1996 { | |
| 4468 | 1997 error ("%s: internal format error", who.c_str ()); |
| 2117 | 1998 break; |
| 1999 } | |
| 2000 | |
| 3640 | 2001 elt = fmt_list.next (nconv > 0); |
| 2117 | 2002 } |
| 2003 } | |
| 2004 | |
| 2005 if (ok ()) | |
| 2006 { | |
| 2121 | 2007 mval.resize (final_nr, final_nc, 0.0); |
| 2117 | 2008 |
| 3268 | 2009 retval = mval; |
| 2010 | |
| 2117 | 2011 if (all_char_conv) |
| 5279 | 2012 retval = retval.convert_to_str (false, true); |
| 2117 | 2013 } |
| 2014 | |
| 2015 return retval; | |
| 2016 } | |
| 2017 | |
| 2018 octave_value | |
| 3810 | 2019 octave_base_stream::scanf (const std::string& fmt, const Array<double>& size, |
| 5275 | 2020 octave_idx_type& conversion_count, const std::string& who) |
| 2117 | 2021 { |
| 2022 octave_value retval = Matrix (); | |
| 2023 | |
| 3559 | 2024 conversion_count = 0; |
| 2117 | 2025 |
| 3523 | 2026 std::istream *isp = input_stream (); |
| 2117 | 2027 |
| 2028 if (isp) | |
| 2029 { | |
| 2030 scanf_format_list fmt_list (fmt); | |
| 2031 | |
| 3640 | 2032 if (fmt_list.num_conversions () == -1) |
| 4468 | 2033 ::error ("%s: invalid format specified", who.c_str ()); |
| 3640 | 2034 else |
| 2117 | 2035 { |
| 5275 | 2036 octave_idx_type nr = -1; |
| 2037 octave_idx_type nc = -1; | |
| 3640 | 2038 |
| 2039 bool one_elt_size_spec; | |
| 2040 | |
| 4468 | 2041 get_size (size, nr, nc, one_elt_size_spec, who); |
| 3640 | 2042 |
| 2043 if (! error_state) | |
| 2044 retval = do_scanf (fmt_list, nr, nc, one_elt_size_spec, | |
| 4468 | 2045 conversion_count, who); |
| 2215 | 2046 } |
| 2047 } | |
| 2048 else | |
| 4468 | 2049 invalid_operation (who, "reading"); |
| 2572 | 2050 |
| 2051 return retval; | |
| 2052 } | |
| 2053 | |
| 2712 | 2054 bool |
| 2055 octave_base_stream::do_oscanf (const scanf_format_elt *elt, | |
| 4468 | 2056 octave_value& retval, const std::string& who) |
| 2572 | 2057 { |
| 2712 | 2058 bool quit = false; |
| 2215 | 2059 |
| 3523 | 2060 std::istream *isp = input_stream (); |
| 2215 | 2061 |
| 2062 if (isp) | |
| 2063 { | |
| 3523 | 2064 std::istream& is = *isp; |
| 2215 | 2065 |
| 3538 | 2066 std::ios::fmtflags flags = is.flags (); |
| 2215 | 2067 |
| 2068 if (elt) | |
| 2069 { | |
| 2070 const char *fmt = elt->text; | |
| 2071 | |
| 2072 bool discard = elt->discard; | |
| 2073 | |
| 2074 switch (elt->type) | |
| 2075 { | |
| 3483 | 2076 case scanf_format_elt::whitespace_conversion: |
| 2077 DO_WHITESPACE_CONVERSION (); | |
| 2078 break; | |
| 2079 | |
| 2080 case scanf_format_elt::literal_conversion: | |
| 2081 DO_LITERAL_CONVERSION (); | |
| 2082 break; | |
| 2083 | |
| 2215 | 2084 case '%': |
| 2085 { | |
| 3640 | 2086 DO_PCT_CONVERSION (); |
| 2087 | |
| 2088 if (! is) | |
| 2712 | 2089 quit = true; |
| 3640 | 2090 |
| 2215 | 2091 } |
| 2092 break; | |
| 2093 | |
| 3878 | 2094 case 'd': case 'i': |
| 2215 | 2095 { |
| 2096 int tmp; | |
| 2097 | |
| 3640 | 2098 if (OCTAVE_SCAN (is, *elt, &tmp)) |
| 2712 | 2099 { |
| 2100 if (! discard) | |
| 4233 | 2101 retval = tmp; |
| 2712 | 2102 } |
| 2103 else | |
| 2104 quit = true; | |
| 2215 | 2105 } |
| 2106 break; | |
| 2107 | |
| 3878 | 2108 case 'o': case 'u': case 'x': |
| 2109 { | |
| 2110 long int tmp; | |
| 2111 | |
| 2112 if (OCTAVE_SCAN (is, *elt, &tmp)) | |
| 2113 { | |
| 2114 if (! discard) | |
| 4254 | 2115 retval = tmp; |
| 3878 | 2116 } |
| 2117 else | |
| 2118 quit = true; | |
| 2119 } | |
| 2120 break; | |
| 2121 | |
| 2215 | 2122 case 'e': case 'f': case 'g': |
| 2123 { | |
| 2600 | 2124 double tmp; |
| 2125 | |
| 3640 | 2126 if (OCTAVE_SCAN (is, *elt, &tmp)) |
| 2712 | 2127 { |
| 2128 if (! discard) | |
| 2129 retval = tmp; | |
| 2130 } | |
| 2131 else | |
| 2132 quit = true; | |
| 2215 | 2133 } |
| 2134 break; | |
| 2135 | |
| 2136 case 'c': | |
| 2137 { | |
| 3483 | 2138 BEGIN_C_CONVERSION (); |
| 2139 | |
| 2140 if (! discard) | |
| 2141 retval = tmp; | |
| 2142 | |
| 2143 if (! is) | |
| 2712 | 2144 quit = true; |
| 2215 | 2145 |
| 2146 is.setf (flags); | |
| 2147 } | |
| 2148 break; | |
| 2149 | |
| 2150 case 's': | |
| 2151 { | |
| 3483 | 2152 BEGIN_S_CONVERSION (); |
| 2153 | |
| 2154 if (! discard) | |
| 2155 retval = tmp; | |
| 2572 | 2156 |
| 3268 | 2157 if (! is) |
| 2158 quit = true; | |
| 2215 | 2159 } |
| 2160 break; | |
| 2161 | |
| 3483 | 2162 case '[': case '^': |
| 2163 { | |
| 2164 BEGIN_CHAR_CLASS_CONVERSION (); | |
| 2165 | |
| 2166 if (! discard) | |
| 2167 retval = tmp; | |
| 2168 | |
| 2169 if (! is) | |
| 2170 quit = true; | |
| 2171 } | |
| 2172 break; | |
| 2173 | |
| 2174 case 'p': | |
| 4468 | 2175 error ("%s: unsupported format specifier", who.c_str ()); |
| 2215 | 2176 break; |
| 2177 | |
| 2178 default: | |
| 4468 | 2179 error ("%s: internal format error", who.c_str ()); |
| 2215 | 2180 break; |
| 2181 } | |
| 2182 } | |
| 2183 | |
| 2184 if (ok () && is.fail ()) | |
| 2185 { | |
| 4468 | 2186 error ("%s: read error", who.c_str ()); |
| 3483 | 2187 |
| 5775 | 2188 // FIXME -- is this the right thing to do? |
| 3342 | 2189 |
| 2190 if (interactive && name () == "stdin") | |
| 2215 | 2191 { |
| 2192 // Skip to end of line. | |
| 2193 | |
| 2194 bool err; | |
| 4468 | 2195 do_gets (-1, err, false, who); |
| 2215 | 2196 } |
| 2197 } | |
| 2198 } | |
| 2199 | |
| 2712 | 2200 return quit; |
| 2215 | 2201 } |
| 2202 | |
| 2203 octave_value_list | |
| 4468 | 2204 octave_base_stream::oscanf (const std::string& fmt, const std::string& who) |
| 2215 | 2205 { |
| 2206 octave_value_list retval; | |
| 2207 | |
| 3523 | 2208 std::istream *isp = input_stream (); |
| 2215 | 2209 |
| 2210 if (isp) | |
| 2211 { | |
| 3523 | 2212 std::istream& is = *isp; |
| 2215 | 2213 |
| 2214 scanf_format_list fmt_list (fmt); | |
| 2215 | |
| 2216 int nconv = fmt_list.num_conversions (); | |
| 2217 | |
| 3640 | 2218 if (nconv == -1) |
| 4468 | 2219 ::error ("%s: invalid format specified", who.c_str ()); |
| 3640 | 2220 else |
| 2215 | 2221 { |
| 3640 | 2222 is.clear (); |
| 2223 | |
| 2224 int len = fmt_list.length (); | |
| 2225 | |
| 2226 retval.resize (nconv+1, Matrix ()); | |
| 2227 | |
| 2228 const scanf_format_elt *elt = fmt_list.first (); | |
| 2229 | |
| 2230 int num_values = 0; | |
| 2231 | |
| 2232 bool quit = false; | |
| 2233 | |
| 5275 | 2234 for (octave_idx_type i = 0; i < len; i++) |
| 3640 | 2235 { |
| 2236 octave_value tmp; | |
| 2237 | |
| 4468 | 2238 quit = do_oscanf (elt, tmp, who); |
| 3640 | 2239 |
| 2240 if (quit) | |
| 2241 break; | |
| 2242 else | |
| 2243 { | |
| 2244 if (tmp.is_defined ()) | |
| 2245 retval (num_values++) = tmp; | |
| 2246 | |
| 2247 if (! ok ()) | |
| 2248 break; | |
| 2249 | |
| 2250 elt = fmt_list.next (nconv > 0); | |
| 2251 } | |
| 2252 } | |
| 2253 | |
| 4233 | 2254 retval(nconv) = num_values; |
| 3640 | 2255 |
| 2256 if (! quit) | |
| 2257 { | |
| 2258 // Pick up any trailing stuff. | |
| 2259 if (ok () && len > nconv) | |
| 2260 { | |
| 2261 octave_value tmp; | |
| 3704 | 2262 |
| 2263 elt = fmt_list.next (); | |
| 2264 | |
| 4468 | 2265 do_oscanf (elt, tmp, who); |
| 3640 | 2266 } |
| 2267 } | |
| 2117 | 2268 } |
| 2269 } | |
| 2270 else | |
| 4468 | 2271 invalid_operation (who, "reading"); |
| 2117 | 2272 |
| 2273 return retval; | |
| 2274 } | |
| 2275 | |
| 2276 // Functions that are defined for all output streams (output streams | |
| 2277 // are those that define os). | |
| 2278 | |
| 2279 int | |
| 2280 octave_base_stream::flush (void) | |
| 2281 { | |
| 2282 int retval = -1; | |
| 2283 | |
| 3523 | 2284 std::ostream *os = output_stream (); |
| 2117 | 2285 |
| 2286 if (os) | |
| 2287 { | |
| 2288 os->flush (); | |
| 2289 | |
| 2290 if (os->good ()) | |
| 2291 retval = 0; | |
| 2292 } | |
| 2293 else | |
| 2294 invalid_operation ("fflush", "writing"); | |
| 2295 | |
| 2296 return retval; | |
| 2297 } | |
| 2298 | |
| 2299 class | |
| 2300 printf_value_cache | |
| 2301 { | |
| 2302 public: | |
| 2303 | |
| 3653 | 2304 enum state { ok, conversion_error }; |
| 2117 | 2305 |
| 7352 | 2306 printf_value_cache (const octave_value_list& args, const std::string& who) |
| 2117 | 2307 : values (args), val_idx (0), elt_idx (0), |
| 2308 n_vals (values.length ()), n_elts (0), data (0), | |
| 7352 | 2309 curr_state (ok) |
| 2310 { | |
| 2311 for (octave_idx_type i = 0; i < values.length (); i++) | |
| 2312 { | |
| 2313 octave_value val = values(i); | |
| 2314 | |
| 2315 if (val.is_map () || val.is_cell () || val.is_object () | |
| 2316 || val.is_list ()) | |
| 2317 { | |
| 2318 gripe_wrong_type_arg (who, val); | |
| 2319 break; | |
| 2320 } | |
| 2321 } | |
| 2322 } | |
| 2117 | 2323 |
| 2324 ~printf_value_cache (void) { } | |
| 2325 | |
| 2326 // Get the current value as a double and advance the internal pointer. | |
| 2327 double double_value (void); | |
| 2328 | |
| 2329 // Get the current value as an int and advance the internal pointer. | |
| 2330 int int_value (void); | |
| 2331 | |
| 2332 // Get the current value as a string and advance the internal pointer. | |
| 3523 | 2333 std::string string_value (void); |
| 2117 | 2334 |
| 3145 | 2335 operator bool () const { return (curr_state == ok); } |
| 2117 | 2336 |
| 3653 | 2337 bool exhausted (void) { return (val_idx >= n_vals); } |
| 2117 | 2338 |
| 2339 private: | |
| 2340 | |
| 2341 const octave_value_list values; | |
| 2342 int val_idx; | |
| 2343 int elt_idx; | |
| 2344 int n_vals; | |
| 2345 int n_elts; | |
| 2346 const double *data; | |
| 4874 | 2347 NDArray curr_val; |
| 2117 | 2348 state curr_state; |
| 2349 | |
| 2350 // Must create value cache with values! | |
| 2351 | |
| 2352 printf_value_cache (void); | |
| 2353 | |
| 2354 // No copying! | |
| 2355 | |
| 2356 printf_value_cache (const printf_value_cache&); | |
| 2357 | |
| 2358 printf_value_cache& operator = (const printf_value_cache&); | |
| 2359 }; | |
| 2360 | |
| 2361 double | |
| 2362 printf_value_cache::double_value (void) | |
| 2363 { | |
| 2364 double retval = 0.0; | |
| 2365 | |
| 3711 | 2366 if (exhausted ()) |
| 2367 curr_state = conversion_error; | |
| 2368 | |
| 2369 while (! exhausted ()) | |
| 2117 | 2370 { |
| 2371 if (! data) | |
| 2372 { | |
| 2373 octave_value tmp_val = values (val_idx); | |
| 2374 | |
| 5476 | 2375 // Force string conversion here for compatibility. |
| 2376 | |
| 2377 curr_val = tmp_val.array_value (true); | |
| 2117 | 2378 |
| 2379 if (! error_state) | |
| 2380 { | |
| 2381 elt_idx = 0; | |
| 2382 n_elts = curr_val.length (); | |
| 2383 data = curr_val.data (); | |
| 2384 } | |
| 2385 else | |
| 2386 { | |
| 2387 curr_state = conversion_error; | |
| 2388 break; | |
| 2389 } | |
| 2390 } | |
| 2391 | |
| 2392 if (elt_idx < n_elts) | |
| 2393 { | |
| 3653 | 2394 retval = data[elt_idx++]; |
| 2395 | |
| 2396 if (elt_idx >= n_elts) | |
| 2397 { | |
| 2398 elt_idx = 0; | |
| 2399 val_idx++; | |
| 2400 data = 0; | |
| 2401 } | |
| 2402 | |
| 2117 | 2403 break; |
| 2404 } | |
| 2405 else | |
| 2406 { | |
| 2407 val_idx++; | |
| 2408 data = 0; | |
| 3969 | 2409 |
| 2410 if (n_elts == 0 && exhausted ()) | |
| 2411 curr_state = conversion_error; | |
| 2412 | |
| 2117 | 2413 continue; |
| 2414 } | |
| 2415 } | |
| 2416 | |
| 2417 return retval; | |
| 2418 } | |
| 2419 | |
| 2420 int | |
| 2421 printf_value_cache::int_value (void) | |
| 2422 { | |
| 2423 int retval = 0; | |
| 2424 | |
| 2425 double dval = double_value (); | |
| 2426 | |
| 2427 if (! error_state) | |
| 2428 { | |
| 2429 if (D_NINT (dval) == dval) | |
| 2430 retval = NINT (dval); | |
| 2431 else | |
| 2432 curr_state = conversion_error; | |
| 2433 } | |
| 2434 | |
| 2435 return retval; | |
| 2436 } | |
| 2437 | |
| 3536 | 2438 std::string |
| 2117 | 2439 printf_value_cache::string_value (void) |
| 2440 { | |
| 3523 | 2441 std::string retval; |
| 2117 | 2442 |
| 4425 | 2443 if (exhausted ()) |
| 2444 curr_state = conversion_error; | |
| 4257 | 2445 else |
| 2117 | 2446 { |
| 4425 | 2447 octave_value tval = values (val_idx++); |
| 2448 | |
| 2449 if (tval.rows () == 1) | |
| 2450 retval = tval.string_value (); | |
| 2451 else | |
| 2452 { | |
| 2453 // In the name of Matlab compatibility. | |
| 2454 | |
| 2455 charMatrix chm = tval.char_matrix_value (); | |
| 2456 | |
| 5275 | 2457 octave_idx_type nr = chm.rows (); |
| 2458 octave_idx_type nc = chm.columns (); | |
| 4425 | 2459 |
| 2460 int k = 0; | |
| 2461 | |
| 2462 retval.resize (nr * nc, '\0'); | |
| 2463 | |
| 5275 | 2464 for (octave_idx_type j = 0; j < nc; j++) |
| 2465 for (octave_idx_type i = 0; i < nr; i++) | |
| 4425 | 2466 retval[k++] = chm(i,j); |
| 2467 } | |
| 2468 | |
| 2469 if (error_state) | |
| 2470 curr_state = conversion_error; | |
| 2117 | 2471 } |
| 4257 | 2472 |
| 2117 | 2473 return retval; |
| 2474 } | |
| 2475 | |
| 2476 // Ugh again and again. | |
| 2477 | |
| 2572 | 2478 template <class T> |
| 3620 | 2479 int |
| 3523 | 2480 do_printf_conv (std::ostream& os, const char *fmt, int nsa, int sa_1, |
| 4468 | 2481 int sa_2, T arg, const std::string& who) |
| 2572 | 2482 { |
| 3620 | 2483 int retval = 0; |
| 2484 | |
| 2572 | 2485 switch (nsa) |
| 2486 { | |
| 2487 case 2: | |
| 3640 | 2488 retval = octave_format (os, fmt, sa_1, sa_2, arg); |
| 2572 | 2489 break; |
| 2490 | |
| 2491 case 1: | |
| 3640 | 2492 retval = octave_format (os, fmt, sa_1, arg); |
| 2572 | 2493 break; |
| 2494 | |
| 2495 case 0: | |
| 3640 | 2496 retval = octave_format (os, fmt, arg); |
| 2572 | 2497 break; |
| 2498 | |
| 2499 default: | |
| 4468 | 2500 ::error ("%s: internal error handling format", who.c_str ()); |
| 2572 | 2501 break; |
| 2502 } | |
| 3620 | 2503 |
| 2504 return retval; | |
| 2572 | 2505 } |
| 2506 | |
| 3620 | 2507 template int |
| 4468 | 2508 do_printf_conv (std::ostream&, const char*, int, int, int, int, |
| 2509 const std::string&); | |
| 2510 | |
| 2511 template int | |
| 2512 do_printf_conv (std::ostream&, const char*, int, int, int, long, | |
| 2513 const std::string&); | |
| 2514 | |
| 3878 | 2515 template int |
| 4468 | 2516 do_printf_conv (std::ostream&, const char*, int, int, int, unsigned int, |
| 2517 const std::string&); | |
| 2518 | |
| 2519 template int | |
| 2520 do_printf_conv (std::ostream&, const char*, int, int, int, unsigned long, | |
| 2521 const std::string&); | |
| 2522 | |
| 2523 template int | |
| 2524 do_printf_conv (std::ostream&, const char*, int, int, int, double, | |
| 2525 const std::string&); | |
| 2526 | |
| 2527 template int | |
| 2528 do_printf_conv (std::ostream&, const char*, int, int, int, const char*, | |
| 2529 const std::string&); | |
| 2117 | 2530 |
| 6492 | 2531 #define DO_DOUBLE_CONV(TQUAL) \ |
| 2532 do \ | |
| 2533 { \ | |
| 7199 | 2534 if (val > std::numeric_limits<TQUAL long>::max () \ |
| 2535 || val < std::numeric_limits<TQUAL long>::min ()) \ | |
| 6492 | 2536 { \ |
| 7199 | 2537 std::string tfmt = fmt; \ |
| 6492 | 2538 \ |
| 7199 | 2539 tfmt.replace (tfmt.rfind (elt->type), 1, ".f"); \ |
| 6492 | 2540 \ |
| 7199 | 2541 if (elt->modifier == 'l') \ |
| 2542 tfmt.replace (tfmt.rfind (elt->modifier), 1, ""); \ | |
| 2543 \ | |
| 2544 retval += do_printf_conv (os, tfmt.c_str (), nsa, sa_1, sa_2, \ | |
| 2545 val, who); \ | |
| 6492 | 2546 } \ |
| 2547 else \ | |
| 7199 | 2548 retval += do_printf_conv (os, fmt, nsa, sa_1, sa_2, \ |
| 2549 static_cast<TQUAL long> (val), who); \ | |
| 6492 | 2550 } \ |
| 2551 while (0) | |
| 2552 | |
| 2117 | 2553 int |
| 2554 octave_base_stream::do_printf (printf_format_list& fmt_list, | |
| 4468 | 2555 const octave_value_list& args, |
| 2556 const std::string& who) | |
| 2117 | 2557 { |
| 3620 | 2558 int retval = 0; |
| 2117 | 2559 |
| 3640 | 2560 int nconv = fmt_list.num_conversions (); |
| 2561 | |
| 3523 | 2562 std::ostream *osp = output_stream (); |
| 2117 | 2563 |
| 2564 if (osp) | |
| 2565 { | |
| 3523 | 2566 std::ostream& os = *osp; |
| 2117 | 2567 |
| 2568 const printf_format_elt *elt = fmt_list.first (); | |
| 2569 | |
| 7352 | 2570 printf_value_cache val_cache (args, who); |
| 2571 | |
| 2572 if (error_state) | |
| 2573 return retval; | |
| 2117 | 2574 |
| 2575 for (;;) | |
| 2576 { | |
| 4153 | 2577 OCTAVE_QUIT; |
| 2578 | |
| 2117 | 2579 if (elt) |
| 2580 { | |
| 3640 | 2581 // NSA is the number of `star' args to convert. |
| 2582 | |
| 2583 int nsa = (elt->fw < 0) + (elt->prec < 0); | |
| 2117 | 2584 |
| 2585 int sa_1 = 0; | |
| 2586 int sa_2 = 0; | |
| 2587 | |
| 2588 if (nsa > 0) | |
| 2589 { | |
| 2590 sa_1 = val_cache.int_value (); | |
| 2591 | |
| 2592 if (! val_cache) | |
| 2593 break; | |
| 2594 else | |
| 2595 { | |
| 2596 if (nsa > 1) | |
| 2597 { | |
| 2598 sa_2 = val_cache.int_value (); | |
| 2599 | |
| 2600 if (! val_cache) | |
| 2601 break; | |
| 2602 } | |
| 2603 } | |
| 2604 } | |
| 2605 | |
| 2606 const char *fmt = elt->text; | |
| 2607 | |
| 3640 | 2608 if (elt->type == '%') |
| 2609 { | |
| 2610 os << "%"; | |
| 2611 retval++; | |
| 2612 } | |
| 2613 else if (elt->args == 0 && elt->text) | |
| 2614 { | |
| 2615 os << elt->text; | |
| 2616 retval += strlen (elt->text); | |
| 2617 } | |
| 4257 | 2618 else if (elt->type == 's') |
| 3640 | 2619 { |
| 2620 std::string val = val_cache.string_value (); | |
| 2621 | |
| 2622 if (val_cache) | |
| 2623 retval += do_printf_conv (os, fmt, nsa, sa_1, | |
| 4468 | 2624 sa_2, val.c_str (), who); |
| 3640 | 2625 else |
| 2626 break; | |
| 2627 } | |
| 2117 | 2628 else |
| 2629 { | |
| 3640 | 2630 double val = val_cache.double_value (); |
| 2631 | |
| 2632 if (val_cache) | |
| 2117 | 2633 { |
| 6492 | 2634 if (lo_ieee_isnan (val) || xisinf (val)) |
| 4303 | 2635 { |
| 2636 std::string tfmt = fmt; | |
| 6865 | 2637 std::string::size_type i1, i2; |
| 2638 | |
| 2639 tfmt.replace ((i1 = tfmt.rfind (elt->type)), | |
| 2640 1, 1, 's'); | |
| 2641 | |
| 8021 | 2642 if ((i2 = tfmt.rfind ('.')) != std::string::npos && i2 < i1) |
| 6865 | 2643 { |
| 2644 tfmt.erase (i2, i1-i2); | |
| 2645 if (elt->prec < 0) | |
| 2646 nsa--; | |
| 2647 } | |
| 6492 | 2648 |
| 2649 const char *tval = xisinf (val) | |
| 2650 ? (val < 0 ? "-Inf" : "Inf") | |
| 2651 : (lo_ieee_is_NA (val) ? "NA" : "NaN"); | |
| 2652 | |
| 2653 retval += do_printf_conv (os, tfmt.c_str (), | |
| 2654 nsa, sa_1, sa_2, | |
| 2655 tval, who); | |
| 4303 | 2656 } |
| 2657 else | |
| 3640 | 2658 { |
| 6492 | 2659 char type = elt->type; |
| 2660 | |
| 2661 switch (type) | |
| 4303 | 2662 { |
| 2663 case 'd': case 'i': case 'c': | |
| 7227 | 2664 DO_DOUBLE_CONV (OCTAVE_EMPTY_CPP_ARG); |
| 4303 | 2665 break; |
| 2666 | |
| 2667 case 'o': case 'x': case 'X': case 'u': | |
| 6492 | 2668 DO_DOUBLE_CONV (unsigned); |
| 4303 | 2669 break; |
| 2670 | |
| 2671 case 'f': case 'e': case 'E': | |
| 2672 case 'g': case 'G': | |
| 2673 retval | |
| 2674 += do_printf_conv (os, fmt, nsa, sa_1, sa_2, | |
| 4468 | 2675 val, who); |
| 4303 | 2676 break; |
| 2677 | |
| 2678 default: | |
| 4468 | 2679 error ("%s: invalid format specifier", |
| 2680 who.c_str ()); | |
| 4303 | 2681 return -1; |
| 2682 break; | |
| 2683 } | |
| 3640 | 2684 } |
| 2117 | 2685 } |
| 2686 else | |
| 3620 | 2687 break; |
| 2117 | 2688 } |
| 2689 | |
| 3620 | 2690 if (! os) |
| 2117 | 2691 { |
| 4468 | 2692 error ("%s: write error", who.c_str ()); |
| 2117 | 2693 break; |
| 2694 } | |
| 2695 } | |
| 2696 else | |
| 2697 { | |
| 4468 | 2698 ::error ("%s: internal error handling format", who.c_str ()); |
| 2117 | 2699 retval = -1; |
| 2700 break; | |
| 2701 } | |
| 2702 | |
| 3640 | 2703 elt = fmt_list.next (nconv > 0 && ! val_cache.exhausted ()); |
| 2704 | |
| 2705 if (! elt || (val_cache.exhausted () && elt->args > 0)) | |
| 2706 break; | |
| 2707 } | |
| 2117 | 2708 } |
| 3640 | 2709 else |
| 4468 | 2710 invalid_operation (who, "writing"); |
| 2117 | 2711 |
| 2712 return retval; | |
| 2713 } | |
| 2714 | |
| 2715 int | |
| 3640 | 2716 octave_base_stream::printf (const std::string& fmt, |
| 4468 | 2717 const octave_value_list& args, |
| 2718 const std::string& who) | |
| 2117 | 2719 { |
| 3640 | 2720 int retval = 0; |
| 2721 | |
| 2722 printf_format_list fmt_list (fmt); | |
| 2723 | |
| 2724 if (fmt_list.num_conversions () == -1) | |
| 4468 | 2725 ::error ("%s: invalid format specified", who.c_str ()); |
| 2117 | 2726 else |
| 4468 | 2727 retval = do_printf (fmt_list, args, who); |
| 2117 | 2728 |
| 2729 return retval; | |
| 2730 } | |
| 2731 | |
| 2732 int | |
| 4468 | 2733 octave_base_stream::puts (const std::string& s, const std::string& who) |
| 2117 | 2734 { |
| 2735 int retval = -1; | |
| 2736 | |
| 3523 | 2737 std::ostream *osp = output_stream (); |
| 2117 | 2738 |
| 2739 if (osp) | |
| 2740 { | |
| 3523 | 2741 std::ostream& os = *osp; |
| 2117 | 2742 |
| 2743 os << s; | |
| 2744 | |
| 2745 if (os) | |
| 2746 { | |
| 5775 | 2747 // FIXME -- why does this seem to be necessary? |
| 2117 | 2748 // Without it, output from a loop like |
| 2749 // | |
| 2750 // for i = 1:100, fputs (stdout, "foo\n"); endfor | |
| 2751 // | |
| 2752 // doesn't seem to go to the pager immediately. | |
| 2753 | |
| 2754 os.flush (); | |
| 2755 | |
| 2756 if (os) | |
| 2757 retval = 0; | |
| 2758 else | |
| 4468 | 2759 error ("%s: write error", who.c_str ()); |
| 2117 | 2760 } |
| 2761 else | |
| 4468 | 2762 error ("%s: write error", who.c_str ()); |
| 2117 | 2763 } |
| 2764 else | |
| 4468 | 2765 invalid_operation (who, "writing"); |
| 2117 | 2766 |
| 2767 return retval; | |
| 2768 } | |
| 2769 | |
| 2770 // Return current error message for this stream. | |
| 2771 | |
| 3536 | 2772 std::string |
| 2435 | 2773 octave_base_stream::error (bool clear_err, int& err_num) |
| 2117 | 2774 { |
| 2435 | 2775 err_num = fail ? -1 : 0; |
| 2117 | 2776 |
| 3523 | 2777 std::string tmp = errmsg; |
| 2117 | 2778 |
| 2779 if (clear_err) | |
| 2780 clear (); | |
| 2781 | |
| 2782 return tmp; | |
| 2783 } | |
| 2784 | |
| 2785 void | |
| 4468 | 2786 octave_base_stream::invalid_operation (const std::string& who, const char *rw) |
| 2117 | 2787 { |
| 4468 | 2788 // Note that this is not ::error () ! |
| 2789 | |
| 6297 | 2790 error (who, std::string ("stream not open for ") + rw); |
| 2117 | 2791 } |
| 2792 | |
| 3552 | 2793 octave_stream::octave_stream (octave_base_stream *bs) |
| 3340 | 2794 : rep (bs) |
| 2795 { | |
| 2796 if (rep) | |
| 2797 rep->count = 1; | |
| 2798 } | |
| 2799 | |
| 2800 octave_stream::~octave_stream (void) | |
| 2801 { | |
| 2802 if (rep && --rep->count == 0) | |
| 2803 delete rep; | |
| 2804 } | |
| 2805 | |
| 2806 octave_stream::octave_stream (const octave_stream& s) | |
| 2807 : rep (s.rep) | |
| 2808 { | |
| 2809 if (rep) | |
| 2810 rep->count++; | |
| 2811 } | |
| 2812 | |
| 2813 octave_stream& | |
| 2814 octave_stream::operator = (const octave_stream& s) | |
| 2815 { | |
| 2816 if (rep != s.rep) | |
| 2817 { | |
| 2818 if (rep && --rep->count == 0) | |
| 2819 delete rep; | |
| 2820 | |
| 2821 rep = s.rep; | |
| 2822 | |
| 2823 if (rep) | |
| 2824 rep->count++; | |
| 2825 } | |
| 2826 | |
| 2827 return *this; | |
| 2828 } | |
| 2829 | |
| 2117 | 2830 int |
| 2831 octave_stream::flush (void) | |
| 2832 { | |
| 2833 int retval = -1; | |
| 2834 | |
| 5659 | 2835 if (stream_ok ()) |
| 2117 | 2836 retval = rep->flush (); |
| 2837 | |
| 2838 return retval; | |
| 2839 } | |
| 2840 | |
| 3536 | 2841 std::string |
| 5275 | 2842 octave_stream::getl (octave_idx_type max_len, bool& err, const std::string& who) |
| 2117 | 2843 { |
| 3523 | 2844 std::string retval; |
| 2117 | 2845 |
| 5659 | 2846 if (stream_ok ()) |
| 4468 | 2847 retval = rep->getl (max_len, err, who); |
| 2117 | 2848 |
| 2849 return retval; | |
| 2850 } | |
| 2851 | |
| 3536 | 2852 std::string |
| 4468 | 2853 octave_stream::getl (const octave_value& tc_max_len, bool& err, |
| 2854 const std::string& who) | |
| 2117 | 2855 { |
| 3523 | 2856 std::string retval; |
| 2117 | 2857 |
| 2858 err = false; | |
| 2859 | |
| 2860 int conv_err = 0; | |
| 2861 | |
| 6345 | 2862 int max_len = -1; |
| 2863 | |
| 2864 if (tc_max_len.is_defined ()) | |
| 2117 | 2865 { |
| 6345 | 2866 max_len = convert_to_valid_int (tc_max_len, conv_err); |
| 2867 | |
| 2868 if (conv_err || max_len < 0) | |
| 2869 { | |
| 2870 err = true; | |
| 2871 ::error ("%s: invalid maximum length specified", who.c_str ()); | |
| 2872 } | |
| 2117 | 2873 } |
| 6345 | 2874 |
| 2875 if (! error_state) | |
| 4468 | 2876 retval = getl (max_len, err, who); |
| 2117 | 2877 |
| 2878 return retval; | |
| 2879 } | |
| 2880 | |
| 3536 | 2881 std::string |
| 5275 | 2882 octave_stream::gets (octave_idx_type max_len, bool& err, const std::string& who) |
| 2117 | 2883 { |
| 3523 | 2884 std::string retval; |
| 2117 | 2885 |
| 5659 | 2886 if (stream_ok ()) |
| 4468 | 2887 retval = rep->gets (max_len, err, who); |
| 2117 | 2888 |
| 2889 return retval; | |
| 2890 } | |
| 2891 | |
| 3536 | 2892 std::string |
| 4468 | 2893 octave_stream::gets (const octave_value& tc_max_len, bool& err, |
| 2894 const std::string& who) | |
| 2117 | 2895 { |
| 3523 | 2896 std::string retval; |
| 2117 | 2897 |
| 2898 err = false; | |
| 2899 | |
| 2900 int conv_err = 0; | |
| 2901 | |
| 6345 | 2902 int max_len = -1; |
| 2903 | |
| 2904 if (tc_max_len.is_defined ()) | |
| 2117 | 2905 { |
| 6345 | 2906 max_len = convert_to_valid_int (tc_max_len, conv_err); |
| 2907 | |
| 2908 if (conv_err || max_len < 0) | |
| 2909 { | |
| 2910 err = true; | |
| 2911 ::error ("%s: invalid maximum length specified", who.c_str ()); | |
| 2912 } | |
| 2117 | 2913 } |
| 6345 | 2914 |
| 2915 if (! error_state) | |
| 4468 | 2916 retval = gets (max_len, err, who); |
| 2117 | 2917 |
| 2918 return retval; | |
| 2919 } | |
| 2920 | |
| 2921 int | |
| 4797 | 2922 octave_stream::seek (long offset, int origin) |
| 2117 | 2923 { |
| 5065 | 2924 int status = -1; |
| 2117 | 2925 |
| 5659 | 2926 if (stream_ok ()) |
| 4889 | 2927 { |
| 2928 clearerr (); | |
| 2929 | |
| 5065 | 2930 long orig_pos = rep->tell (); |
| 2931 | |
| 2932 status = rep->seek (offset, origin); | |
| 2933 | |
| 2934 if (status == 0) | |
| 2935 { | |
| 2936 long save_pos = rep->tell (); | |
| 2937 | |
| 2938 rep->seek (0, SEEK_END); | |
| 2939 | |
| 2940 long pos_eof = rep->tell (); | |
| 2941 | |
| 2942 // I don't think save_pos can be less than zero, but we'll | |
| 2943 // check anyway... | |
| 2944 | |
| 2945 if (save_pos > pos_eof || save_pos < 0) | |
| 2946 { | |
| 2947 // Seek outside bounds of file. Failure should leave | |
| 2948 // position unchanged. | |
| 2949 | |
| 2950 rep->seek (orig_pos, SEEK_SET); | |
| 2951 | |
| 2952 status = -1; | |
| 2953 } | |
| 2954 else | |
| 2955 { | |
| 2956 // Is it possible for this to fail? We are just | |
| 2957 // returning to a position after the first successful | |
| 2958 // seek. | |
| 2959 | |
| 2960 rep->seek (save_pos, SEEK_SET); | |
| 2961 } | |
| 2962 } | |
| 4889 | 2963 } |
| 2117 | 2964 |
| 5065 | 2965 return status; |
| 2117 | 2966 } |
| 2967 | |
| 2968 int | |
| 2969 octave_stream::seek (const octave_value& tc_offset, | |
| 2970 const octave_value& tc_origin) | |
| 2971 { | |
| 2972 int retval = -1; | |
| 2973 | |
| 4797 | 2974 long xoffset = tc_offset.long_value (true); |
| 4645 | 2975 |
| 2976 if (! error_state) | |
| 2117 | 2977 { |
| 4645 | 2978 int conv_err = 0; |
| 2979 | |
| 4797 | 2980 int origin = SEEK_SET; |
| 2117 | 2981 |
| 2341 | 2982 if (tc_origin.is_string ()) |
| 2117 | 2983 { |
| 3523 | 2984 std::string xorigin = tc_origin.string_value (); |
| 2341 | 2985 |
| 2986 if (xorigin == "bof") | |
| 4797 | 2987 origin = SEEK_SET; |
| 2341 | 2988 else if (xorigin == "cof") |
| 4797 | 2989 origin = SEEK_CUR; |
| 2341 | 2990 else if (xorigin == "eof") |
| 4797 | 2991 origin = SEEK_END; |
| 2117 | 2992 else |
| 2993 conv_err = -1; | |
| 2994 } | |
| 2341 | 2995 else |
| 2996 { | |
| 2997 int xorigin = convert_to_valid_int (tc_origin, conv_err); | |
| 2998 | |
| 2999 if (! conv_err) | |
| 3000 { | |
| 3001 if (xorigin == -1) | |
| 4797 | 3002 origin = SEEK_SET; |
| 2341 | 3003 else if (xorigin == 0) |
| 4797 | 3004 origin = SEEK_CUR; |
| 2341 | 3005 else if (xorigin == 1) |
| 4797 | 3006 origin = SEEK_END; |
| 2341 | 3007 else |
| 3008 conv_err = -1; | |
| 3009 } | |
| 3010 } | |
| 2117 | 3011 |
| 3012 if (! conv_err) | |
| 5065 | 3013 { |
| 3014 retval = seek (xoffset, origin); | |
| 3015 | |
| 3016 if (retval != 0) | |
| 3017 error ("fseek: failed to seek to requested position"); | |
| 3018 } | |
| 2117 | 3019 else |
| 3020 error ("fseek: invalid value for origin"); | |
| 3021 } | |
| 3022 else | |
| 3023 error ("fseek: invalid value for offset"); | |
| 3024 | |
| 3025 return retval; | |
| 3026 } | |
| 3027 | |
| 4797 | 3028 long |
| 3029 octave_stream::tell (void) | |
| 2117 | 3030 { |
| 4797 | 3031 long retval = -1; |
| 2117 | 3032 |
| 5659 | 3033 if (stream_ok ()) |
| 2117 | 3034 retval = rep->tell (); |
| 3035 | |
| 3036 return retval; | |
| 3037 } | |
| 3038 | |
| 3039 int | |
| 3040 octave_stream::rewind (void) | |
| 3041 { | |
| 6296 | 3042 return seek (0, SEEK_SET); |
| 2117 | 3043 } |
| 3044 | |
| 3340 | 3045 bool |
| 3046 octave_stream::is_open (void) const | |
| 3047 { | |
| 3048 bool retval = false; | |
| 3049 | |
| 5659 | 3050 if (stream_ok ()) |
| 3340 | 3051 retval = rep->is_open (); |
| 3052 | |
| 3053 return retval; | |
| 3054 } | |
| 3055 | |
| 3056 void | |
| 3057 octave_stream::close (void) | |
| 3058 { | |
| 5659 | 3059 if (stream_ok ()) |
| 3340 | 3060 rep->close (); |
| 3061 } | |
| 3062 | |
| 4944 | 3063 template <class RET_T, class READ_T> |
| 2117 | 3064 octave_value |
| 5275 | 3065 do_read (octave_stream& strm, octave_idx_type nr, octave_idx_type nc, octave_idx_type block_size, |
| 7995 | 3066 octave_idx_type skip, bool do_float_fmt_conv, bool do_NA_conv, |
| 5275 | 3067 oct_mach_info::float_format from_flt_fmt, octave_idx_type& count) |
| 2117 | 3068 { |
| 3069 octave_value retval; | |
| 3070 | |
| 4944 | 3071 RET_T nda; |
| 3072 | |
| 3073 count = 0; | |
| 3074 | |
| 3075 typename octave_array_type_traits<RET_T>::element_type elt_zero | |
| 3076 = typename octave_array_type_traits<RET_T>::element_type (); | |
| 3077 | |
| 3078 typename octave_array_type_traits<RET_T>::element_type *dat = 0; | |
| 3079 | |
| 5275 | 3080 octave_idx_type max_size = 0; |
| 3081 | |
| 3082 octave_idx_type final_nr = 0; | |
| 3083 octave_idx_type final_nc = 1; | |
| 4944 | 3084 |
| 3085 if (nr > 0) | |
| 3086 { | |
| 3087 if (nc > 0) | |
| 3088 { | |
| 3089 nda.resize (dim_vector (nr, nc), elt_zero); | |
| 3090 dat = nda.fortran_vec (); | |
| 3091 max_size = nr * nc; | |
| 3092 } | |
| 3093 else | |
| 3094 { | |
| 3095 nda.resize (dim_vector (nr, 32), elt_zero); | |
| 3096 dat = nda.fortran_vec (); | |
| 3097 max_size = nr * 32; | |
| 3098 } | |
| 3099 } | |
| 3100 else | |
| 3101 { | |
| 3102 nda.resize (dim_vector (32, 1), elt_zero); | |
| 3103 dat = nda.fortran_vec (); | |
| 3104 max_size = 32; | |
| 3105 } | |
| 3106 | |
| 5775 | 3107 // FIXME -- byte order for Cray? |
| 4944 | 3108 |
| 3109 bool swap = false; | |
| 3110 | |
| 3111 if (oct_mach_info::words_big_endian ()) | |
| 3112 swap = (from_flt_fmt == oct_mach_info::flt_fmt_ieee_little_endian | |
| 3113 || from_flt_fmt == oct_mach_info::flt_fmt_vax_g | |
| 3114 || from_flt_fmt == oct_mach_info::flt_fmt_vax_g); | |
| 3115 else | |
| 3116 swap = (from_flt_fmt == oct_mach_info::flt_fmt_ieee_big_endian); | |
| 3117 | |
| 3118 union | |
| 3119 { | |
| 3120 char buf[sizeof (typename octave_type_traits<READ_T>::val_type)]; | |
| 3121 typename octave_type_traits<READ_T>::val_type val; | |
| 3122 } u; | |
| 3123 | |
| 3124 std::istream *isp = strm.input_stream (); | |
| 3125 | |
| 3126 if (isp) | |
| 3127 { | |
| 3128 std::istream& is = *isp; | |
| 3129 | |
| 5275 | 3130 octave_idx_type elts_read = 0; |
| 4944 | 3131 |
| 3132 for (;;) | |
| 3133 { | |
| 5775 | 3134 // FIXME -- maybe there should be a special case for |
| 4944 | 3135 // skip == 0. |
| 3136 | |
| 3137 if (is) | |
| 3138 { | |
| 3139 if (nr > 0 && nc > 0 && count == max_size) | |
| 3140 { | |
| 3141 final_nr = nr; | |
| 3142 final_nc = nc; | |
| 3143 | |
| 3144 break; | |
| 3145 } | |
| 3146 | |
| 3147 is.read (u.buf, sizeof (typename octave_type_traits<READ_T>::val_type)); | |
| 3148 | |
| 3149 // We only swap bytes for integer types. For float | |
| 3150 // types, the format conversion will also handle byte | |
| 3151 // swapping. | |
| 3152 | |
| 3153 if (swap) | |
| 3154 swap_bytes<sizeof (typename octave_type_traits<READ_T>::val_type)> (u.buf); | |
| 3155 else if (do_float_fmt_conv) | |
| 3156 do_float_format_conversion | |
| 3157 (u.buf, | |
| 3158 sizeof (typename octave_type_traits<READ_T>::val_type), | |
| 3159 1, from_flt_fmt, oct_mach_info::float_format ()); | |
| 3160 | |
| 3161 typename octave_array_type_traits<RET_T>::element_type tmp | |
| 3162 = static_cast <typename octave_array_type_traits<RET_T>::element_type> (u.val); | |
| 3163 | |
| 5030 | 3164 if (is) |
| 4944 | 3165 { |
| 5030 | 3166 if (count == max_size) |
| 4944 | 3167 { |
| 5030 | 3168 max_size *= 2; |
| 3169 | |
| 3170 if (nr > 0) | |
| 3171 nda.resize (dim_vector (nr, max_size / nr), | |
| 3172 elt_zero); | |
| 3173 else | |
| 3174 nda.resize (dim_vector (max_size, 1), elt_zero); | |
| 3175 | |
| 3176 dat = nda.fortran_vec (); | |
| 4944 | 3177 } |
| 3178 | |
| 7995 | 3179 if (do_NA_conv && __lo_ieee_is_old_NA (tmp)) |
| 3180 tmp = __lo_ieee_replace_old_NA (tmp); | |
| 3181 | |
| 5030 | 3182 dat[count++] = tmp; |
| 3183 | |
| 3184 elts_read++; | |
| 3185 } | |
| 3186 | |
|
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diff
changeset
|
3187 int seek_status = 0; |
|
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7433
diff
changeset
|
3188 |
| 5030 | 3189 if (skip != 0 && elts_read == block_size) |
| 3190 { | |
|
7538
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7433
diff
changeset
|
3191 seek_status = strm.seek (skip, SEEK_CUR); |
| 5030 | 3192 elts_read = 0; |
| 3193 } | |
| 3194 | |
|
7538
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diff
changeset
|
3195 if (is.eof () || seek_status < 0) |
| 5030 | 3196 { |
| 3197 if (nr > 0) | |
| 4944 | 3198 { |
| 5030 | 3199 if (count > nr) |
| 4944 | 3200 { |
| 5030 | 3201 final_nr = nr; |
| 3202 final_nc = (count - 1) / nr + 1; | |
| 4944 | 3203 } |
| 3204 else | |
| 3205 { | |
| 3206 final_nr = count; | |
| 3207 final_nc = 1; | |
| 3208 } | |
| 3209 } | |
| 5030 | 3210 else |
| 3211 { | |
| 3212 final_nr = count; | |
| 3213 final_nc = 1; | |
| 3214 } | |
| 3215 | |
| 4944 | 3216 break; |
| 3217 } | |
| 3218 } | |
| 5030 | 3219 else if (is.eof ()) |
| 3220 break; | |
| 4944 | 3221 } |
| 3222 } | |
| 3223 | |
| 5030 | 3224 nda.resize (dim_vector (final_nr, final_nc), elt_zero); |
| 3225 | |
| 3226 retval = nda; | |
| 4944 | 3227 |
| 3228 return retval; | |
| 3229 } | |
| 3230 | |
| 3231 #define DO_READ_VAL_TEMPLATE(RET_T, READ_T) \ | |
| 3232 template octave_value \ | |
| 7995 | 3233 do_read<RET_T, READ_T> (octave_stream&, octave_idx_type, octave_idx_type, octave_idx_type, octave_idx_type, bool, bool, \ |
| 5275 | 3234 oct_mach_info::float_format, octave_idx_type&) |
| 4944 | 3235 |
| 5775 | 3236 // FIXME -- should we only have float if it is a different |
| 4944 | 3237 // size from double? |
| 3238 | |
| 3239 #define INSTANTIATE_DO_READ(VAL_T) \ | |
| 3240 DO_READ_VAL_TEMPLATE (VAL_T, octave_int8); \ | |
| 3241 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint8); \ | |
| 3242 DO_READ_VAL_TEMPLATE (VAL_T, octave_int16); \ | |
| 3243 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint16); \ | |
| 3244 DO_READ_VAL_TEMPLATE (VAL_T, octave_int32); \ | |
| 3245 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint32); \ | |
| 3246 DO_READ_VAL_TEMPLATE (VAL_T, octave_int64); \ | |
| 3247 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint64); \ | |
| 3248 DO_READ_VAL_TEMPLATE (VAL_T, float); \ | |
| 3249 DO_READ_VAL_TEMPLATE (VAL_T, double); \ | |
| 3250 DO_READ_VAL_TEMPLATE (VAL_T, char); \ | |
| 3251 DO_READ_VAL_TEMPLATE (VAL_T, signed char); \ | |
| 3252 DO_READ_VAL_TEMPLATE (VAL_T, unsigned char) | |
| 3253 | |
| 4970 | 3254 INSTANTIATE_DO_READ (int8NDArray); |
| 3255 INSTANTIATE_DO_READ (uint8NDArray); | |
| 3256 INSTANTIATE_DO_READ (int16NDArray); | |
| 3257 INSTANTIATE_DO_READ (uint16NDArray); | |
| 3258 INSTANTIATE_DO_READ (int32NDArray); | |
| 3259 INSTANTIATE_DO_READ (uint32NDArray); | |
| 3260 INSTANTIATE_DO_READ (int64NDArray); | |
| 3261 INSTANTIATE_DO_READ (uint64NDArray); | |
|
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diff
changeset
|
3262 INSTANTIATE_DO_READ (FloatNDArray); |
| 4970 | 3263 INSTANTIATE_DO_READ (NDArray); |
| 3264 INSTANTIATE_DO_READ (charNDArray); | |
| 5780 | 3265 INSTANTIATE_DO_READ (boolNDArray); |
| 4944 | 3266 |
| 7995 | 3267 typedef octave_value (*read_fptr) (octave_stream&, octave_idx_type, octave_idx_type, octave_idx_type, octave_idx_type, bool, bool, |
| 5275 | 3268 oct_mach_info::float_format ffmt, octave_idx_type&); |
| 4944 | 3269 |
| 3270 #define FILL_TABLE_ROW(R, VAL_T) \ | |
|
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changeset
|
3271 read_fptr_table[R][oct_data_conv::dt_int8] = do_read<VAL_T, octave_int8>; \ |
|
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diff
changeset
|
3272 read_fptr_table[R][oct_data_conv::dt_uint8] = do_read<VAL_T, octave_uint8>; \ |
|
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diff
changeset
|
3273 read_fptr_table[R][oct_data_conv::dt_int16] = do_read<VAL_T, octave_int16>; \ |
|
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diff
changeset
|
3274 read_fptr_table[R][oct_data_conv::dt_uint16] = do_read<VAL_T, octave_uint16>; \ |
|
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diff
changeset
|
3275 read_fptr_table[R][oct_data_conv::dt_int32] = do_read<VAL_T, octave_int32>; \ |
|
4b2147b25e8d
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diff
changeset
|
3276 read_fptr_table[R][oct_data_conv::dt_uint32] = do_read<VAL_T, octave_uint32>; \ |
|
4b2147b25e8d
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diff
changeset
|
3277 read_fptr_table[R][oct_data_conv::dt_int64] = do_read<VAL_T, octave_int64>; \ |
|
4b2147b25e8d
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diff
changeset
|
3278 read_fptr_table[R][oct_data_conv::dt_uint64] = do_read<VAL_T, octave_uint64>; \ |
|
4b2147b25e8d
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diff
changeset
|
3279 read_fptr_table[R][oct_data_conv::dt_single] = do_read<VAL_T, float>; \ |
|
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parents:
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diff
changeset
|
3280 read_fptr_table[R][oct_data_conv::dt_double] = do_read<VAL_T, double>; \ |
|
4b2147b25e8d
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diff
changeset
|
3281 read_fptr_table[R][oct_data_conv::dt_char] = do_read<VAL_T, char>; \ |
|
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diff
changeset
|
3282 read_fptr_table[R][oct_data_conv::dt_schar] = do_read<VAL_T, signed char>; \ |
|
4b2147b25e8d
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diff
changeset
|
3283 read_fptr_table[R][oct_data_conv::dt_uchar] = do_read<VAL_T, unsigned char>; \ |
|
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parents:
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diff
changeset
|
3284 read_fptr_table[R][oct_data_conv::dt_logical] = do_read<VAL_T, unsigned char> |
| 4944 | 3285 |
| 3286 octave_value | |
| 5275 | 3287 octave_stream::read (const Array<double>& size, octave_idx_type block_size, |
| 4944 | 3288 oct_data_conv::data_type input_type, |
| 3289 oct_data_conv::data_type output_type, | |
| 5275 | 3290 octave_idx_type skip, oct_mach_info::float_format ffmt, |
| 3291 octave_idx_type& char_count) | |
| 4944 | 3292 { |
| 3293 static bool initialized = false; | |
| 3294 | |
| 3295 // Table function pointers for return types x read types. | |
| 3296 | |
|
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diff
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|
3297 static read_fptr read_fptr_table[oct_data_conv::dt_unknown][14]; |
| 4944 | 3298 |
| 3299 if (! initialized) | |
| 3300 { | |
|
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|
3301 for (int i = 0; i < oct_data_conv::dt_unknown; i++) |
|
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diff
changeset
|
3302 for (int j = 0; j < 14; j++) |
|
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|
3303 read_fptr_table[i][j] = 0; |
|
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changeset
|
3304 |
| 4944 | 3305 FILL_TABLE_ROW (oct_data_conv::dt_int8, int8NDArray); |
| 3306 FILL_TABLE_ROW (oct_data_conv::dt_uint8, uint8NDArray); | |
| 3307 FILL_TABLE_ROW (oct_data_conv::dt_int16, int16NDArray); | |
| 3308 FILL_TABLE_ROW (oct_data_conv::dt_uint16, uint16NDArray); | |
| 3309 FILL_TABLE_ROW (oct_data_conv::dt_int32, int32NDArray); | |
| 3310 FILL_TABLE_ROW (oct_data_conv::dt_uint32, uint32NDArray); | |
| 3311 FILL_TABLE_ROW (oct_data_conv::dt_int64, int64NDArray); | |
| 3312 FILL_TABLE_ROW (oct_data_conv::dt_uint64, uint64NDArray); | |
|
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|
3313 FILL_TABLE_ROW (oct_data_conv::dt_single, FloatNDArray); |
| 4944 | 3314 FILL_TABLE_ROW (oct_data_conv::dt_double, NDArray); |
| 3315 FILL_TABLE_ROW (oct_data_conv::dt_char, charNDArray); | |
| 3316 FILL_TABLE_ROW (oct_data_conv::dt_schar, charNDArray); | |
| 3317 FILL_TABLE_ROW (oct_data_conv::dt_uchar, charNDArray); | |
| 4970 | 3318 FILL_TABLE_ROW (oct_data_conv::dt_logical, boolNDArray); |
| 4944 | 3319 |
| 3320 initialized = true; | |
| 3321 } | |
| 3322 | |
| 3323 octave_value retval; | |
| 3324 | |
| 5659 | 3325 if (stream_ok ()) |
| 4944 | 3326 { |
| 5775 | 3327 // FIXME -- we may eventually want to make this extensible. |
| 3328 | |
| 3329 // FIXME -- we need a better way to ensure that this | |
| 4944 | 3330 // numbering stays consistent with the order of the elements in the |
| 3331 // data_type enum in the oct_data_conv class. | |
| 3332 | |
| 3333 char_count = 0; | |
| 3334 | |
| 5275 | 3335 octave_idx_type nr = -1; |
| 3336 octave_idx_type nc = -1; | |
| 4944 | 3337 |
| 3338 bool ignore; | |
| 3339 | |
| 3340 get_size (size, nr, nc, ignore, "fread"); | |
| 3341 | |
| 3342 if (! error_state) | |
| 3343 { | |
| 3344 if (nr == 0 || nc == 0) | |
| 3345 retval = Matrix (nr, nc); | |
| 3346 else | |
| 3347 { | |
| 3348 if (ffmt == oct_mach_info::flt_fmt_unknown) | |
| 3349 ffmt = float_format (); | |
| 3350 | |
|
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|
3351 read_fptr fcn = read_fptr_table[output_type][input_type]; |
| 4944 | 3352 |
| 3353 bool do_float_fmt_conv = ((input_type == oct_data_conv::dt_double | |
| 3354 || input_type == oct_data_conv::dt_single) | |
| 3355 && ffmt != float_format ()); | |
| 3356 | |
| 7995 | 3357 bool do_NA_conv = (output_type == oct_data_conv::dt_double); |
| 3358 | |
| 4944 | 3359 if (fcn) |
| 3360 { | |
| 3361 retval = (*fcn) (*this, nr, nc, block_size, skip, | |
| 7995 | 3362 do_float_fmt_conv, do_NA_conv, |
| 3363 ffmt, char_count); | |
| 4944 | 3364 |
| 5775 | 3365 // FIXME -- kluge! |
| 4944 | 3366 |
| 3367 if (! error_state | |
| 3368 && (output_type == oct_data_conv::dt_char | |
| 3369 || output_type == oct_data_conv::dt_schar | |
| 3370 || output_type == oct_data_conv::dt_uchar)) | |
| 3371 retval = octave_value (retval.char_matrix_value (), true); | |
| 3372 } | |
| 3373 else | |
| 3374 error ("fread: unable to read and convert requested types"); | |
| 3375 } | |
| 3376 } | |
| 3377 else | |
| 3378 invalid_operation ("fread", "reading"); | |
| 3379 } | |
| 2117 | 3380 |
| 3381 return retval; | |
| 3382 } | |
| 3383 | |
| 5275 | 3384 octave_idx_type |
| 3385 octave_stream::write (const octave_value& data, octave_idx_type block_size, | |
| 3386 oct_data_conv::data_type output_type, octave_idx_type skip, | |
| 2317 | 3387 oct_mach_info::float_format flt_fmt) |
| 2117 | 3388 { |
| 5275 | 3389 octave_idx_type retval = -1; |
| 2117 | 3390 |
| 5659 | 3391 if (stream_ok ()) |
| 4944 | 3392 { |
| 3393 if (! error_state) | |
| 3394 { | |
| 3395 if (flt_fmt == oct_mach_info::flt_fmt_unknown) | |
| 3396 flt_fmt = float_format (); | |
| 3397 | |
| 5275 | 3398 octave_idx_type status = data.write (*this, block_size, output_type, |
| 4944 | 3399 skip, flt_fmt); |
| 3400 | |
| 3401 if (status < 0) | |
| 3402 error ("fwrite: write error"); | |
| 3403 else | |
| 3404 retval = status; | |
| 3405 } | |
| 3406 else | |
| 3407 invalid_operation ("fwrite", "writing"); | |
| 3408 } | |
| 2117 | 3409 |
| 3410 return retval; | |
| 3411 } | |
| 3412 | |
| 4944 | 3413 template <class T> |
| 3414 void | |
| 3415 write_int (std::ostream& os, bool swap, const T& val) | |
| 3416 { | |
| 3417 typename octave_type_traits<T>::val_type tmp = val.value (); | |
| 3418 | |
| 3419 if (swap) | |
| 3420 swap_bytes<sizeof (typename octave_type_traits<T>::val_type)> (&tmp); | |
| 3421 | |
| 3422 os.write (reinterpret_cast<const char *> (&tmp), | |
| 3423 sizeof (typename octave_type_traits<T>::val_type)); | |
| 3424 } | |
| 3425 | |
| 3426 template void write_int (std::ostream&, bool, const octave_int8&); | |
| 3427 template void write_int (std::ostream&, bool, const octave_uint8&); | |
| 3428 template void write_int (std::ostream&, bool, const octave_int16&); | |
| 3429 template void write_int (std::ostream&, bool, const octave_uint16&); | |
| 3430 template void write_int (std::ostream&, bool, const octave_int32&); | |
| 3431 template void write_int (std::ostream&, bool, const octave_uint32&); | |
| 3432 template void write_int (std::ostream&, bool, const octave_int64&); | |
| 3433 template void write_int (std::ostream&, bool, const octave_uint64&); | |
| 3434 | |
| 3435 template <class T> | |
| 3436 static inline bool | |
| 3437 do_write (std::ostream& os, const T& val, oct_data_conv::data_type output_type, | |
| 3438 oct_mach_info::float_format flt_fmt, bool swap, | |
| 3439 bool do_float_conversion) | |
| 3440 { | |
| 3441 bool retval = true; | |
| 3442 | |
| 3443 // For compatibility, Octave converts to the output type, then | |
| 3444 // writes. This means that truncation happens on the conversion. | |
| 3445 // For example, the following program prints 0: | |
| 3446 // | |
| 3447 // x = int8 (-1) | |
| 3448 // f = fopen ("foo.dat", "w"); | |
| 3449 // fwrite (f, x, "unsigned char"); | |
| 3450 // fclose (f); | |
| 3451 // f = fopen ("foo.dat", "r"); | |
| 3452 // y = fread (f, 1, "unsigned char"); | |
| 3453 // printf ("%d\n", y); | |
| 3454 | |
| 3455 switch (output_type) | |
| 3456 { | |
| 3457 case oct_data_conv::dt_char: | |
| 3458 case oct_data_conv::dt_schar: | |
| 3459 case oct_data_conv::dt_int8: | |
| 3460 write_int (os, swap, octave_int8 (val)); | |
| 3461 break; | |
| 3462 | |
| 3463 case oct_data_conv::dt_uchar: | |
| 3464 case oct_data_conv::dt_uint8: | |
| 3465 write_int (os, swap, octave_uint8 (val)); | |
| 3466 break; | |
| 3467 | |
| 3468 case oct_data_conv::dt_int16: | |
| 3469 write_int (os, swap, octave_int16 (val)); | |
| 3470 break; | |
| 3471 | |
| 3472 case oct_data_conv::dt_uint16: | |
| 3473 write_int (os, swap, octave_uint16 (val)); | |
| 3474 break; | |
| 3475 | |
| 3476 case oct_data_conv::dt_int32: | |
| 3477 write_int (os, swap, octave_int32 (val)); | |
| 3478 break; | |
| 3479 | |
| 3480 case oct_data_conv::dt_uint32: | |
| 3481 write_int (os, swap, octave_uint32 (val)); | |
| 3482 break; | |
| 3483 | |
| 3484 case oct_data_conv::dt_int64: | |
| 3485 write_int (os, swap, octave_int64 (val)); | |
| 3486 break; | |
| 3487 | |
| 3488 case oct_data_conv::dt_uint64: | |
| 3489 write_int (os, swap, octave_uint64 (val)); | |
| 3490 break; | |
| 3491 | |
| 3492 case oct_data_conv::dt_single: | |
| 3493 { | |
| 3494 float f = static_cast<float> (val); | |
| 3495 | |
| 3496 if (do_float_conversion) | |
| 3497 do_float_format_conversion (&f, 1, flt_fmt); | |
| 3498 | |
| 3499 os.write (reinterpret_cast<const char *> (&f), sizeof (float)); | |
| 3500 } | |
| 3501 break; | |
| 3502 | |
| 3503 case oct_data_conv::dt_double: | |
| 3504 { | |
| 3505 double d = static_cast<double> (val); | |
| 3506 if (do_float_conversion) | |
| 3507 do_double_format_conversion (&d, 1, flt_fmt); | |
| 3508 | |
| 3509 os.write (reinterpret_cast<const char *> (&d), sizeof (double)); | |
| 3510 } | |
| 3511 break; | |
| 3512 | |
| 3513 default: | |
| 3514 retval = false; | |
| 3515 (*current_liboctave_error_handler) | |
| 3516 ("write: invalid type specification"); | |
| 3517 break; | |
| 3518 } | |
| 3519 | |
| 3520 return retval; | |
| 3521 } | |
| 3522 | |
| 5887 | 3523 template bool |
| 3524 do_write (std::ostream&, const octave_int8&, oct_data_conv::data_type, | |
| 3525 oct_mach_info::float_format, bool, bool); | |
| 3526 | |
| 3527 template bool | |
| 3528 do_write (std::ostream&, const octave_uint8&, oct_data_conv::data_type, | |
| 3529 oct_mach_info::float_format, bool, bool); | |
| 3530 | |
| 3531 template bool | |
| 3532 do_write (std::ostream&, const octave_int16&, oct_data_conv::data_type, | |
| 3533 oct_mach_info::float_format, bool, bool); | |
| 3534 | |
| 3535 template bool | |
| 3536 do_write (std::ostream&, const octave_uint16&, oct_data_conv::data_type, | |
| 3537 oct_mach_info::float_format, bool, bool); | |
| 3538 | |
| 3539 template bool | |
| 3540 do_write (std::ostream&, const octave_int32&, oct_data_conv::data_type, | |
| 3541 oct_mach_info::float_format, bool, bool); | |
| 3542 | |
| 3543 template bool | |
| 3544 do_write (std::ostream&, const octave_uint32&, oct_data_conv::data_type, | |
| 3545 oct_mach_info::float_format, bool, bool); | |
| 3546 | |
| 3547 template bool | |
| 3548 do_write (std::ostream&, const octave_int64&, oct_data_conv::data_type, | |
| 3549 oct_mach_info::float_format, bool, bool); | |
| 3550 | |
| 3551 template bool | |
| 3552 do_write (std::ostream&, const octave_uint64&, oct_data_conv::data_type, | |
| 3553 oct_mach_info::float_format, bool, bool); | |
| 3554 | |
| 4944 | 3555 template <class T> |
| 5275 | 3556 octave_idx_type |
| 3557 octave_stream::write (const Array<T>& data, octave_idx_type block_size, | |
| 4944 | 3558 oct_data_conv::data_type output_type, |
| 5275 | 3559 octave_idx_type skip, oct_mach_info::float_format flt_fmt) |
| 4944 | 3560 { |
| 5275 | 3561 octave_idx_type retval = -1; |
| 4944 | 3562 |
| 3563 bool status = true; | |
| 3564 | |
| 5275 | 3565 octave_idx_type count = 0; |
| 4944 | 3566 |
| 3567 const T *d = data.data (); | |
| 3568 | |
| 5275 | 3569 octave_idx_type n = data.length (); |
| 4944 | 3570 |
| 3571 oct_mach_info::float_format native_flt_fmt | |
| 3572 = oct_mach_info::float_format (); | |
| 3573 | |
| 3574 bool do_float_conversion = (flt_fmt != native_flt_fmt); | |
| 3575 | |
| 5775 | 3576 // FIXME -- byte order for Cray? |
| 4944 | 3577 |
| 3578 bool swap = false; | |
| 3579 | |
| 3580 if (oct_mach_info::words_big_endian ()) | |
| 3581 swap = (flt_fmt == oct_mach_info::flt_fmt_ieee_little_endian | |
| 3582 || flt_fmt == oct_mach_info::flt_fmt_vax_g | |
| 3583 || flt_fmt == oct_mach_info::flt_fmt_vax_g); | |
| 3584 else | |
| 3585 swap = (flt_fmt == oct_mach_info::flt_fmt_ieee_big_endian); | |
| 3586 | |
| 5275 | 3587 for (octave_idx_type i = 0; i < n; i++) |
| 4944 | 3588 { |
| 3589 std::ostream *osp = output_stream (); | |
| 3590 | |
| 3591 if (osp) | |
| 3592 { | |
| 3593 std::ostream& os = *osp; | |
| 3594 | |
| 3595 if (skip != 0 && (i % block_size) == 0) | |
| 5254 | 3596 { |
|
9017
9543a90fac18
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John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3597 // Seek to skip when inside bounds of existing file. |
|
9543a90fac18
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parents:
8920
diff
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|
3598 // Otherwise, write NUL to skip. |
|
9543a90fac18
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John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3599 |
|
9543a90fac18
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3600 long orig_pos = tell (); |
|
9543a90fac18
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parents:
8920
diff
changeset
|
3601 |
|
9543a90fac18
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John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3602 seek (0, SEEK_END); |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
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parents:
8920
diff
changeset
|
3603 |
|
9543a90fac18
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John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3604 long eof_pos = tell (); |
|
9543a90fac18
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John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3605 |
|
9543a90fac18
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John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3606 // 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
|
3607 // original position? |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3608 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
|
3609 |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3610 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
|
3611 |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3612 if (remaining < skip) |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3613 { |
|
9543a90fac18
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John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3614 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
|
3615 |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3616 // 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
|
3617 // blocks... |
|
9543a90fac18
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John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3618 |
|
9543a90fac18
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John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3619 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
|
3620 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
|
3621 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
|
3622 } |
|
9543a90fac18
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John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3623 else |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3624 seek (skip, SEEK_CUR); |
| 5254 | 3625 } |
| 4944 | 3626 |
| 3627 if (os) | |
| 3628 { | |
| 3629 status = do_write (os, d[i], output_type, flt_fmt, swap, | |
| 3630 do_float_conversion); | |
| 3631 | |
| 3632 if (os && status) | |
| 3633 count++; | |
| 3634 else | |
| 3635 break; | |
| 3636 } | |
| 3637 else | |
| 3638 { | |
| 3639 status = false; | |
| 3640 break; | |
| 3641 } | |
| 3642 } | |
| 3643 else | |
| 3644 { | |
| 3645 status = false; | |
| 3646 break; | |
| 3647 } | |
| 3648 } | |
| 3649 | |
| 3650 if (status) | |
| 3651 retval = count; | |
| 3652 | |
| 3653 return retval; | |
| 3654 } | |
| 3655 | |
| 5275 | 3656 template octave_idx_type |
| 3657 octave_stream::write (const Array<char>&, octave_idx_type, | |
| 4944 | 3658 oct_data_conv::data_type, |
| 5275 | 3659 octave_idx_type, oct_mach_info::float_format); |
| 3660 | |
| 3661 template octave_idx_type | |
| 3662 octave_stream::write (const Array<bool>&, octave_idx_type, | |
| 4970 | 3663 oct_data_conv::data_type, |
| 5275 | 3664 octave_idx_type, oct_mach_info::float_format); |
| 3665 | |
| 3666 template octave_idx_type | |
| 3667 octave_stream::write (const Array<double>&, octave_idx_type, | |
| 4944 | 3668 oct_data_conv::data_type, |
| 5275 | 3669 octave_idx_type, oct_mach_info::float_format); |
| 3670 | |
| 3671 template octave_idx_type | |
|
7789
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7724
diff
changeset
|
3672 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
|
3673 oct_data_conv::data_type, |
|
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7724
diff
changeset
|
3674 octave_idx_type, oct_mach_info::float_format); |
|
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7724
diff
changeset
|
3675 |
|
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7724
diff
changeset
|
3676 template octave_idx_type |
| 5275 | 3677 octave_stream::write (const Array<octave_int8>&, octave_idx_type, |
| 4944 | 3678 oct_data_conv::data_type, |
| 5275 | 3679 octave_idx_type, oct_mach_info::float_format); |
| 3680 | |
| 3681 template octave_idx_type | |
| 3682 octave_stream::write (const Array<octave_uint8>&, octave_idx_type, | |
| 4944 | 3683 oct_data_conv::data_type, |
| 5275 | 3684 octave_idx_type, oct_mach_info::float_format); |
| 3685 | |
| 3686 template octave_idx_type | |
| 3687 octave_stream::write (const Array<octave_int16>&, octave_idx_type, | |
| 4944 | 3688 oct_data_conv::data_type, |
| 5275 | 3689 octave_idx_type, oct_mach_info::float_format); |
| 3690 | |
| 3691 template octave_idx_type | |
| 3692 octave_stream::write (const Array<octave_uint16>&, octave_idx_type, | |
| 4944 | 3693 oct_data_conv::data_type, |
| 5275 | 3694 octave_idx_type, oct_mach_info::float_format); |
| 3695 | |
| 3696 template octave_idx_type | |
| 3697 octave_stream::write (const Array<octave_int32>&, octave_idx_type, | |
| 4944 | 3698 oct_data_conv::data_type, |
| 5275 | 3699 octave_idx_type, oct_mach_info::float_format); |
| 3700 | |
| 3701 template octave_idx_type | |
| 3702 octave_stream::write (const Array<octave_uint32>&, octave_idx_type, | |
| 4944 | 3703 oct_data_conv::data_type, |
| 5275 | 3704 octave_idx_type, oct_mach_info::float_format); |
| 3705 | |
| 3706 template octave_idx_type | |
| 3707 octave_stream::write (const Array<octave_int64>&, octave_idx_type, | |
| 4944 | 3708 oct_data_conv::data_type, |
| 5275 | 3709 octave_idx_type, oct_mach_info::float_format); |
| 3710 | |
| 3711 template octave_idx_type | |
| 3712 octave_stream::write (const Array<octave_uint64>&, octave_idx_type, | |
| 4944 | 3713 oct_data_conv::data_type, |
| 5275 | 3714 octave_idx_type, oct_mach_info::float_format); |
| 4944 | 3715 |
| 2117 | 3716 octave_value |
| 3810 | 3717 octave_stream::scanf (const std::string& fmt, const Array<double>& size, |
| 5275 | 3718 octave_idx_type& count, const std::string& who) |
| 2117 | 3719 { |
| 3720 octave_value retval; | |
| 3721 | |
| 5659 | 3722 if (stream_ok ()) |
| 4468 | 3723 retval = rep->scanf (fmt, size, count, who); |
| 2117 | 3724 |
| 3725 return retval; | |
| 3726 } | |
| 3727 | |
| 5279 | 3728 octave_value |
| 3729 octave_stream::scanf (const octave_value& fmt, const Array<double>& size, | |
| 5299 | 3730 octave_idx_type& count, const std::string& who) |
| 5279 | 3731 { |
| 3732 octave_value retval = Matrix (); | |
| 3733 | |
| 3734 if (fmt.is_string ()) | |
| 3735 { | |
| 3736 std::string sfmt = fmt.string_value (); | |
| 3737 | |
| 3738 if (fmt.is_sq_string ()) | |
| 3739 sfmt = do_string_escapes (sfmt); | |
| 3740 | |
| 3741 retval = scanf (sfmt, size, count, who); | |
| 3742 } | |
| 3743 else | |
| 3744 { | |
| 3745 // Note that this is not ::error () ! | |
| 3746 | |
| 3747 error (who + ": format must be a string"); | |
| 3748 } | |
| 3749 | |
| 3750 return retval; | |
| 3751 } | |
| 3752 | |
| 2215 | 3753 octave_value_list |
| 4468 | 3754 octave_stream::oscanf (const std::string& fmt, const std::string& who) |
| 2215 | 3755 { |
| 3756 octave_value_list retval; | |
| 3757 | |
| 5659 | 3758 if (stream_ok ()) |
| 4468 | 3759 retval = rep->oscanf (fmt, who); |
| 2215 | 3760 |
| 3761 return retval; | |
| 3762 } | |
| 3763 | |
| 5279 | 3764 octave_value_list |
| 3765 octave_stream::oscanf (const octave_value& fmt, const std::string& who) | |
| 3766 { | |
| 3767 octave_value_list retval; | |
| 3768 | |
| 3769 if (fmt.is_string ()) | |
| 3770 { | |
| 3771 std::string sfmt = fmt.string_value (); | |
| 3772 | |
| 3773 if (fmt.is_sq_string ()) | |
| 3774 sfmt = do_string_escapes (sfmt); | |
| 3775 | |
| 3776 retval = oscanf (sfmt, who); | |
| 3777 } | |
| 3778 else | |
| 3779 { | |
| 3780 // Note that this is not ::error () ! | |
| 3781 | |
| 3782 error (who + ": format must be a string"); | |
| 3783 } | |
| 3784 | |
| 3785 return retval; | |
| 3786 } | |
| 3787 | |
| 2117 | 3788 int |
| 4468 | 3789 octave_stream::printf (const std::string& fmt, const octave_value_list& args, |
| 3790 const std::string& who) | |
| 2117 | 3791 { |
| 3792 int retval = -1; | |
| 3793 | |
| 5659 | 3794 if (stream_ok ()) |
| 4468 | 3795 retval = rep->printf (fmt, args, who); |
| 2117 | 3796 |
| 3797 return retval; | |
| 3798 } | |
| 3799 | |
| 3800 int | |
| 5279 | 3801 octave_stream::printf (const octave_value& fmt, const octave_value_list& args, |
| 3802 const std::string& who) | |
| 3803 { | |
| 3804 int retval = 0; | |
| 3805 | |
| 3806 if (fmt.is_string ()) | |
| 3807 { | |
| 3808 std::string sfmt = fmt.string_value (); | |
| 3809 | |
| 3810 if (fmt.is_sq_string ()) | |
| 3811 sfmt = do_string_escapes (sfmt); | |
| 3812 | |
| 3813 retval = printf (sfmt, args, who); | |
| 3814 } | |
| 3815 else | |
| 3816 { | |
| 3817 // Note that this is not ::error () ! | |
| 3818 | |
| 3819 error (who + ": format must be a string"); | |
| 3820 } | |
| 3821 | |
| 3822 return retval; | |
| 3823 } | |
| 3824 | |
| 3825 int | |
| 4468 | 3826 octave_stream::puts (const std::string& s, const std::string& who) |
| 2117 | 3827 { |
| 3828 int retval = -1; | |
| 3829 | |
| 5659 | 3830 if (stream_ok ()) |
| 4468 | 3831 retval = rep->puts (s, who); |
| 2117 | 3832 |
| 3833 return retval; | |
| 3834 } | |
| 3835 | |
| 5775 | 3836 // FIXME -- maybe this should work for string arrays too. |
| 2117 | 3837 |
| 3838 int | |
| 4468 | 3839 octave_stream::puts (const octave_value& tc_s, const std::string& who) |
| 2117 | 3840 { |
| 3841 int retval = -1; | |
| 3842 | |
| 3843 if (tc_s.is_string ()) | |
| 3844 { | |
| 3523 | 3845 std::string s = tc_s.string_value (); |
| 5279 | 3846 retval = puts (s, who); |
| 2117 | 3847 } |
| 3848 else | |
| 4468 | 3849 { |
| 3850 // Note that this is not ::error () ! | |
| 3851 | |
| 3852 error (who + ": argument must be a string"); | |
| 3853 } | |
| 2117 | 3854 |
| 3855 return retval; | |
| 3856 } | |
| 3857 | |
| 3858 bool | |
| 3859 octave_stream::eof (void) const | |
| 3860 { | |
| 3861 int retval = -1; | |
| 3862 | |
| 5659 | 3863 if (stream_ok ()) |
| 2117 | 3864 retval = rep->eof (); |
| 3865 | |
| 3866 return retval; | |
| 3867 } | |
| 3868 | |
| 3536 | 3869 std::string |
| 2435 | 3870 octave_stream::error (bool clear, int& err_num) |
| 2117 | 3871 { |
| 5649 | 3872 std::string retval = "invalid stream object"; |
| 3873 | |
| 5659 | 3874 if (stream_ok (false)) |
| 2435 | 3875 retval = rep->error (clear, err_num); |
| 2117 | 3876 |
| 3877 return retval; | |
| 3878 } | |
| 3879 | |
| 3536 | 3880 std::string |
| 3340 | 3881 octave_stream::name (void) const |
| 2117 | 3882 { |
| 3523 | 3883 std::string retval; |
| 2117 | 3884 |
| 5659 | 3885 if (stream_ok ()) |
| 2117 | 3886 retval = rep->name (); |
| 3887 | |
| 3888 return retval; | |
| 3889 } | |
| 3890 | |
| 3891 int | |
| 3340 | 3892 octave_stream::mode (void) const |
| 2117 | 3893 { |
| 3894 int retval = 0; | |
| 3895 | |
| 5659 | 3896 if (stream_ok ()) |
| 2117 | 3897 retval = rep->mode (); |
| 3898 | |
| 3899 return retval; | |
| 3900 } | |
| 3901 | |
| 2317 | 3902 oct_mach_info::float_format |
| 3340 | 3903 octave_stream::float_format (void) const |
| 2117 | 3904 { |
| 4574 | 3905 oct_mach_info::float_format retval = oct_mach_info::flt_fmt_unknown; |
| 2317 | 3906 |
| 5659 | 3907 if (stream_ok ()) |
| 2317 | 3908 retval = rep->float_format (); |
| 2117 | 3909 |
| 3910 return retval; | |
| 3911 } | |
| 3912 | |
| 3536 | 3913 std::string |
| 2117 | 3914 octave_stream::mode_as_string (int mode) |
| 3915 { | |
| 3523 | 3916 std::string retval = "???"; |
| 3775 | 3917 std::ios::openmode in_mode = static_cast<std::ios::openmode> (mode); |
| 3918 | |
| 3919 if (in_mode == std::ios::in) | |
| 3920 retval = "r"; | |
| 3921 else if (in_mode == std::ios::out | |
| 4078 | 3922 || in_mode == (std::ios::out | std::ios::trunc)) |
| 3775 | 3923 retval = "w"; |
| 4078 | 3924 else if (in_mode == (std::ios::out | std::ios::app)) |
| 3775 | 3925 retval = "a"; |
| 4078 | 3926 else if (in_mode == (std::ios::in | std::ios::out)) |
| 3775 | 3927 retval = "r+"; |
| 4078 | 3928 else if (in_mode == (std::ios::in | std::ios::out | std::ios::trunc)) |
| 3775 | 3929 retval = "w+"; |
| 4078 | 3930 else if (in_mode == (std::ios::in | std::ios::out | std::ios::ate)) |
| 3775 | 3931 retval = "a+"; |
| 4078 | 3932 else if (in_mode == (std::ios::in | std::ios::binary)) |
| 3775 | 3933 retval = "rb"; |
| 4078 | 3934 else if (in_mode == (std::ios::out | std::ios::binary) |
| 3935 || in_mode == (std::ios::out | std::ios::trunc | std::ios::binary)) | |
| 3775 | 3936 retval = "wb"; |
| 4078 | 3937 else if (in_mode == (std::ios::out | std::ios::app | std::ios::binary)) |
| 3775 | 3938 retval = "ab"; |
| 4078 | 3939 else if (in_mode == (std::ios::in | std::ios::out | std::ios::binary)) |
| 3775 | 3940 retval = "r+b"; |
| 4078 | 3941 else if (in_mode == (std::ios::in | std::ios::out | std::ios::trunc |
| 3942 | std::ios::binary)) | |
| 3775 | 3943 retval = "w+b"; |
| 4078 | 3944 else if (in_mode == (std::ios::in | std::ios::out | std::ios::ate |
| 3945 | std::ios::binary)) | |
| 3775 | 3946 retval = "a+b"; |
| 2117 | 3947 |
| 3948 return retval; | |
| 3949 } | |
| 3950 | |
| 3951 octave_stream_list *octave_stream_list::instance = 0; | |
| 3952 | |
| 2926 | 3953 bool |
| 3954 octave_stream_list::instance_ok (void) | |
| 3955 { | |
| 3956 bool retval = true; | |
| 3957 | |
| 3958 if (! instance) | |
| 3959 instance = new octave_stream_list (); | |
| 3960 | |
| 3961 if (! instance) | |
| 3962 { | |
| 3963 ::error ("unable to create stream list object!"); | |
| 3964 | |
| 3965 retval = false; | |
| 3966 } | |
| 3967 | |
| 3968 return retval; | |
| 3969 } | |
| 3970 | |
| 5353 | 3971 int |
| 6757 | 3972 octave_stream_list::insert (octave_stream& os) |
| 2926 | 3973 { |
| 5353 | 3974 return (instance_ok ()) ? instance->do_insert (os) : -1; |
| 2926 | 3975 } |
| 3976 | |
| 3340 | 3977 octave_stream |
| 3523 | 3978 octave_stream_list::lookup (int fid, const std::string& who) |
| 2926 | 3979 { |
| 3341 | 3980 return (instance_ok ()) ? instance->do_lookup (fid, who) : octave_stream (); |
| 2926 | 3981 } |
| 3982 | |
| 3340 | 3983 octave_stream |
| 3523 | 3984 octave_stream_list::lookup (const octave_value& fid, const std::string& who) |
| 2926 | 3985 { |
| 3341 | 3986 return (instance_ok ()) ? instance->do_lookup (fid, who) : octave_stream (); |
| 2926 | 3987 } |
| 3988 | |
| 3989 int | |
| 3523 | 3990 octave_stream_list::remove (int fid, const std::string& who) |
| 2926 | 3991 { |
| 3341 | 3992 return (instance_ok ()) ? instance->do_remove (fid, who) : -1; |
| 2926 | 3993 } |
| 3994 | |
| 3995 int | |
| 3523 | 3996 octave_stream_list::remove (const octave_value& fid, const std::string& who) |
| 2926 | 3997 { |
| 3341 | 3998 return (instance_ok ()) ? instance->do_remove (fid, who) : -1; |
| 2926 | 3999 } |
| 4000 | |
| 4001 void | |
|
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4002 octave_stream_list::clear (bool flush) |
| 2926 | 4003 { |
| 4004 if (instance) | |
|
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|
4005 instance->do_clear (flush); |
| 2926 | 4006 } |
| 4007 | |
| 4008 string_vector | |
| 4009 octave_stream_list::get_info (int fid) | |
| 4010 { | |
| 4011 return (instance_ok ()) ? instance->do_get_info (fid) : string_vector (); | |
| 4012 } | |
| 4013 | |
| 4014 string_vector | |
| 4015 octave_stream_list::get_info (const octave_value& fid) | |
| 4016 { | |
| 4017 return (instance_ok ()) ? instance->do_get_info (fid) : string_vector (); | |
| 4018 } | |
| 4019 | |
| 3536 | 4020 std::string |
| 2926 | 4021 octave_stream_list::list_open_files (void) |
| 4022 { | |
| 3523 | 4023 return (instance_ok ()) ? instance->do_list_open_files () : std::string (); |
| 2926 | 4024 } |
| 4025 | |
| 4026 octave_value | |
| 4027 octave_stream_list::open_file_numbers (void) | |
| 4028 { | |
| 4029 return (instance_ok ()) | |
| 4030 ? instance->do_open_file_numbers () : octave_value (); | |
| 4031 } | |
| 4032 | |
| 4033 int | |
| 4034 octave_stream_list::get_file_number (const octave_value& fid) | |
| 4035 { | |
| 4036 return (instance_ok ()) ? instance->do_get_file_number (fid) : -1; | |
| 4037 } | |
| 4038 | |
| 5353 | 4039 int |
| 6757 | 4040 octave_stream_list::do_insert (octave_stream& os) |
| 2117 | 4041 { |
| 6757 | 4042 // Insert item with key corresponding to file-descriptor. |
| 4043 | |
| 4044 int stream_number; | |
| 4045 | |
| 4046 if ((stream_number = os.file_number ()) == -1) | |
| 4047 return stream_number; | |
| 4048 | |
| 4049 // Should we test for "(list.find (stream_number) != list.end ()) && | |
| 4050 // list[stream_number].is_open ()" and respond with "error | |
| 4051 // ("internal error: ...")"? It should not happen except for some | |
| 4052 // bug or if the user has opened a stream with an interpreted | |
| 4053 // command, but closed it directly with a system call in an | |
| 4054 // oct-file; then the kernel knows the fd is free, but Octave does | |
| 4055 // not know. If it happens, it should not do harm here to simply | |
| 4056 // overwrite this entry, although the wrong entry might have done | |
| 4057 // harm before. | |
| 4058 | |
| 4059 if (list.size () < list.max_size ()) | |
| 4060 list[stream_number] = os; | |
| 4061 else | |
| 2117 | 4062 { |
| 6757 | 4063 stream_number = -1; |
| 4064 error ("could not create file id"); | |
| 3340 | 4065 } |
| 2117 | 4066 |
| 5353 | 4067 return stream_number; |
| 6757 | 4068 |
| 2117 | 4069 } |
| 4070 | |
| 3341 | 4071 static void |
| 3523 | 4072 gripe_invalid_file_id (int fid, const std::string& who) |
| 3341 | 4073 { |
| 4074 if (who.empty ()) | |
| 4075 ::error ("invalid stream number = %d", fid); | |
| 4076 else | |
| 4077 ::error ("%s: invalid stream number = %d", who.c_str (), fid); | |
| 4078 } | |
| 4079 | |
| 3340 | 4080 octave_stream |
| 3523 | 4081 octave_stream_list::do_lookup (int fid, const std::string& who) const |
| 2117 | 4082 { |
| 3340 | 4083 octave_stream retval; |
| 2117 | 4084 |
| 6757 | 4085 if (fid >= 0) |
| 4086 { | |
|
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4087 if (lookup_cache != list.end () && lookup_cache->first == fid) |
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|
4088 retval = lookup_cache->second; |
| 6757 | 4089 else |
|
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|
4090 { |
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|
4091 ostrl_map::const_iterator iter = list.find (fid); |
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|
4092 |
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|
4093 if (iter != list.end ()) |
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|
4094 { |
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|
4095 retval = iter->second; |
|
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|
4096 lookup_cache = iter; |
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|
4097 } |
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|
4098 else |
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diff
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|
4099 gripe_invalid_file_id (fid, who); |
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|
4100 } |
| 6757 | 4101 } |
| 3341 | 4102 else |
| 4103 gripe_invalid_file_id (fid, who); | |
| 2117 | 4104 |
| 4105 return retval; | |
| 4106 } | |
| 4107 | |
| 3340 | 4108 octave_stream |
| 3341 | 4109 octave_stream_list::do_lookup (const octave_value& fid, |
| 3523 | 4110 const std::string& who) const |
| 2117 | 4111 { |
| 3340 | 4112 octave_stream retval; |
| 2117 | 4113 |
| 4114 int i = get_file_number (fid); | |
| 4115 | |
| 4116 if (! error_state) | |
| 3341 | 4117 retval = do_lookup (i, who); |
| 2117 | 4118 |
| 4119 return retval; | |
| 4120 } | |
| 4121 | |
| 4122 int | |
| 3523 | 4123 octave_stream_list::do_remove (int fid, const std::string& who) |
| 2117 | 4124 { |
| 4125 int retval = -1; | |
| 4126 | |
| 3531 | 4127 // Can't remove stdin (std::cin), stdout (std::cout), or stderr |
| 4128 // (std::cerr). | |
| 2117 | 4129 |
| 6757 | 4130 if (fid > 2) |
| 2117 | 4131 { |
| 6757 | 4132 ostrl_map::iterator iter = list.find (fid); |
| 4133 | |
| 4134 if (iter != list.end ()) | |
| 2117 | 4135 { |
| 6757 | 4136 octave_stream os = iter->second; |
|
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|
4137 list.erase (iter); |
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|
4138 lookup_cache = list.end (); |
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|
4139 |
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|
4140 // FIXME: is this check redundant? |
| 6757 | 4141 if (os.is_valid ()) |
| 4142 { | |
| 4143 os.close (); | |
| 4144 retval = 0; | |
| 4145 } | |
| 4146 else | |
| 4147 gripe_invalid_file_id (fid, who); | |
| 2117 | 4148 } |
| 3341 | 4149 else |
| 4150 gripe_invalid_file_id (fid, who); | |
| 2117 | 4151 } |
| 3341 | 4152 else |
| 4153 gripe_invalid_file_id (fid, who); | |
| 2117 | 4154 |
| 4155 return retval; | |
| 4156 } | |
| 4157 | |
| 4158 int | |
| 3523 | 4159 octave_stream_list::do_remove (const octave_value& fid, const std::string& who) |
| 2117 | 4160 { |
| 4161 int retval = -1; | |
| 4162 | |
| 6054 | 4163 if (fid.is_string () && fid.string_value () == "all") |
| 4164 { | |
|
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|
4165 do_clear (false); |
| 6054 | 4166 |
| 4167 retval = 0; | |
| 4168 } | |
| 4169 else | |
| 4170 { | |
| 4171 int i = get_file_number (fid); | |
| 4172 | |
| 4173 if (! error_state) | |
| 4174 retval = do_remove (i, who); | |
| 4175 } | |
| 2117 | 4176 |
| 4177 return retval; | |
| 4178 } | |
| 4179 | |
| 4180 void | |
|
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4181 octave_stream_list::do_clear (bool flush) |
| 2117 | 4182 { |
|
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4183 if (flush) |
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|
4184 { |
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|
4185 // Do flush stdout and stderr. |
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|
4186 |
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4187 list[0].flush (); |
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4188 list[1].flush (); |
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4189 } |
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|
4190 |
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|
4191 octave_stream saved_os[3]; |
| 2117 | 4192 // But don't delete them or stdin. |
|
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4193 for (ostrl_map::iterator iter = list.begin (); iter != list.end (); iter++) |
| 6757 | 4194 { |
|
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4195 int fid = iter->first; |
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4196 octave_stream os = iter->second; |
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4197 if (fid < 3) |
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|
4198 saved_os[fid] = os; |
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|
4199 else if (os.is_valid ()) |
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|
4200 os.close (); |
| 6757 | 4201 } |
|
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4202 list.clear (); |
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|
4203 for (int fid = 0; fid < 3; fid++) list[fid] = saved_os[fid]; |
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|
4204 lookup_cache = list.end (); |
| 2117 | 4205 } |
| 4206 | |
| 4207 string_vector | |
| 4208 octave_stream_list::do_get_info (int fid) const | |
| 4209 { | |
| 4210 string_vector retval; | |
| 4211 | |
| 3340 | 4212 octave_stream os = do_lookup (fid); |
| 2117 | 4213 |
| 3341 | 4214 if (os.is_valid ()) |
| 2117 | 4215 { |
| 4216 retval.resize (3); | |
| 4217 | |
| 3340 | 4218 retval(0) = os.name (); |
| 4219 retval(1) = octave_stream::mode_as_string (os.mode ()); | |
| 4220 retval(2) = oct_mach_info::float_format_as_string (os.float_format ()); | |
| 2117 | 4221 } |
| 4222 else | |
| 3341 | 4223 ::error ("invalid file id = %d", fid); |
| 2117 | 4224 |
| 4225 return retval; | |
| 4226 } | |
| 4227 | |
| 4228 string_vector | |
| 4229 octave_stream_list::do_get_info (const octave_value& fid) const | |
| 4230 { | |
| 4231 string_vector retval; | |
| 4232 | |
| 4233 int conv_err = 0; | |
| 4234 | |
| 4235 int int_fid = convert_to_valid_int (fid, conv_err); | |
| 4236 | |
| 4237 if (! conv_err) | |
| 4238 retval = do_get_info (int_fid); | |
| 4239 else | |
| 2915 | 4240 ::error ("file id must be a file object or integer value"); |
| 2117 | 4241 |
| 4242 return retval; | |
| 4243 } | |
| 4244 | |
| 3536 | 4245 std::string |
| 2117 | 4246 octave_stream_list::do_list_open_files (void) const |
| 4247 { | |
| 3523 | 4248 std::string retval; |
| 2117 | 4249 |
| 5765 | 4250 std::ostringstream buf; |
| 2117 | 4251 |
| 4252 buf << "\n" | |
| 4253 << " number mode arch name\n" | |
| 4254 << " ------ ---- ---- ----\n"; | |
| 4255 | |
| 6757 | 4256 for (ostrl_map::const_iterator p = list.begin (); p != list.end (); p++) |
| 2117 | 4257 { |
| 6757 | 4258 octave_stream os = p->second; |
| 2117 | 4259 |
| 4326 | 4260 buf << " " |
| 4261 << std::setiosflags (std::ios::right) | |
| 6757 | 4262 << std::setw (4) << p->first << " " |
| 4326 | 4263 << std::setiosflags (std::ios::left) |
| 4264 << std::setw (3) | |
| 4265 << octave_stream::mode_as_string (os.mode ()) | |
| 4266 << " " | |
| 4267 << std::setw (9) | |
| 4268 << oct_mach_info::float_format_as_string (os.float_format ()) | |
| 4269 << " " | |
| 4270 << os.name () << "\n"; | |
| 2117 | 4271 } |
| 4272 | |
| 5765 | 4273 buf << "\n"; |
| 4274 | |
| 4275 retval = buf.str (); | |
| 2117 | 4276 |
| 4277 return retval; | |
| 4278 } | |
| 4279 | |
| 4280 octave_value | |
| 4281 octave_stream_list::do_open_file_numbers (void) const | |
| 4282 { | |
| 6757 | 4283 Matrix retval (1, list.size (), 0.0); |
| 2117 | 4284 |
| 4285 int num_open = 0; | |
| 4286 | |
| 6757 | 4287 for (ostrl_map::const_iterator p = list.begin (); p != list.end (); p++) |
| 2117 | 4288 { |
| 6757 | 4289 // Skip stdin, stdout, and stderr. |
| 4290 | |
| 4291 if (p->first > 2 && p->second) | |
| 4292 retval(0,num_open++) = p->first; | |
| 2117 | 4293 } |
| 4294 | |
| 4295 retval.resize ((num_open > 0), num_open); | |
| 4296 | |
| 4297 return retval; | |
| 4298 } | |
| 4299 | |
| 4300 int | |
| 2609 | 4301 octave_stream_list::do_get_file_number (const octave_value& fid) const |
| 2117 | 4302 { |
| 4303 int retval = -1; | |
| 4304 | |
| 4305 if (fid.is_string ()) | |
| 4306 { | |
| 3523 | 4307 std::string nm = fid.string_value (); |
| 2117 | 4308 |
| 6757 | 4309 for (ostrl_map::const_iterator p = list.begin (); p != list.end (); p++) |
| 2117 | 4310 { |
| 6757 | 4311 // stdin (std::cin), stdout (std::cout), and stderr (std::cerr) |
| 4312 // are unnamed. | |
| 4313 | |
| 4314 if (p->first > 2) | |
| 2117 | 4315 { |
| 6757 | 4316 octave_stream os = p->second; |
| 4317 | |
| 4318 if (os && os.name () == nm) | |
| 4319 { | |
| 4320 retval = p->first; | |
| 4321 break; | |
| 4322 } | |
| 2117 | 4323 } |
| 4324 } | |
| 4325 } | |
| 4326 else | |
| 4327 { | |
| 4328 int conv_err = 0; | |
| 4329 | |
| 4330 int int_fid = convert_to_valid_int (fid, conv_err); | |
| 4331 | |
| 4332 if (conv_err) | |
| 3523 | 4333 ::error ("file id must be a file object, std::string, or integer value"); |
| 2117 | 4334 else |
| 4335 retval = int_fid; | |
| 4336 } | |
| 4337 | |
| 4338 return retval; | |
| 4339 } | |
| 4340 | |
| 4341 /* | |
| 4342 ;;; Local Variables: *** | |
| 4343 ;;; mode: C++ *** | |
| 4344 ;;; End: *** | |
| 4345 */ |