Mercurial > hg > octave-nkf
annotate src/oct-stream.cc @ 9784:f786dca09f79
implement nfields
| author | Jaroslav Hajek <highegg@gmail.com> |
|---|---|
| date | Sun, 08 Nov 2009 21:25:46 +0100 |
| parents | 531280b07625 |
| children | 1369f13ae6b2 |
| rev | line source |
|---|---|
| 2117 | 1 /* |
| 2 | |
| 7017 | 3 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
| 8920 | 4 2005, 2006, 2007, 2008, 2009 John W. Eaton |
| 2117 | 5 |
| 6 This file is part of Octave. | |
| 7 | |
| 8 Octave is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published by the | |
| 7016 | 10 Free Software Foundation; either version 3 of the License, or (at your |
| 11 option) any later version. | |
| 2117 | 12 |
| 13 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 7016 | 19 along with Octave; see the file COPYING. If not, see |
| 20 <http://www.gnu.org/licenses/>. | |
| 2117 | 21 |
| 22 */ | |
| 23 | |
| 24 #ifdef HAVE_CONFIG_H | |
| 25 #include <config.h> | |
| 26 #endif | |
| 27 | |
| 3268 | 28 #include <cassert> |
|
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octave_scan_1: fix reading of hex numbers
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
29 #include <cctype> |
| 2215 | 30 #include <cstring> |
| 31 | |
| 3503 | 32 #include <iomanip> |
|
9202
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
33 #include <iostream> |
| 3559 | 34 #include <fstream> |
| 5765 | 35 #include <sstream> |
| 3535 | 36 #include <string> |
| 2117 | 37 |
| 4944 | 38 #include <Array.h> |
| 39 | |
| 40 #include "byte-swap.h" | |
| 2117 | 41 #include "lo-ieee.h" |
| 42 #include "lo-mappers.h" | |
| 43 #include "lo-utils.h" | |
| 44 #include "str-vec.h" | |
| 4153 | 45 #include "quit.h" |
| 2117 | 46 |
| 47 #include "error.h" | |
| 7352 | 48 #include "gripes.h" |
| 3342 | 49 #include "input.h" |
| 3775 | 50 #include "oct-stdstrm.h" |
| 2117 | 51 #include "oct-stream.h" |
| 2877 | 52 #include "oct-obj.h" |
| 2117 | 53 #include "utils.h" |
| 54 | |
| 55 // Possible values for conv_err: | |
| 56 // | |
| 57 // 1 : not a real scalar | |
| 2902 | 58 // 2 : value is NaN |
| 59 // 3 : value is not an integer | |
| 2117 | 60 |
| 61 static int | |
| 62 convert_to_valid_int (const octave_value& tc, int& conv_err) | |
| 63 { | |
| 64 int retval = 0; | |
| 65 | |
| 66 conv_err = 0; | |
| 67 | |
| 2902 | 68 double dval = tc.double_value (); |
| 69 | |
| 70 if (! error_state) | |
| 2117 | 71 { |
| 5389 | 72 if (! lo_ieee_isnan (dval)) |
| 2117 | 73 { |
| 2902 | 74 int ival = NINT (dval); |
| 75 | |
| 76 if (ival == dval) | |
| 77 retval = ival; | |
| 2117 | 78 else |
| 79 conv_err = 3; | |
| 80 } | |
| 81 else | |
| 82 conv_err = 2; | |
| 83 } | |
| 84 else | |
| 85 conv_err = 1; | |
| 86 | |
| 87 return retval; | |
| 88 } | |
| 89 | |
| 90 static int | |
| 4468 | 91 get_size (double d, const std::string& who) |
| 2117 | 92 { |
| 93 int retval = -1; | |
| 94 | |
| 5389 | 95 if (! lo_ieee_isnan (d)) |
| 2117 | 96 { |
| 97 if (! xisinf (d)) | |
| 98 { | |
| 3268 | 99 if (d >= 0.0) |
| 2117 | 100 retval = NINT (d); |
| 101 else | |
| 102 ::error ("%s: negative value invalid as size specification", | |
| 4468 | 103 who.c_str ()); |
| 2117 | 104 } |
| 105 else | |
| 106 retval = -1; | |
| 107 } | |
| 108 else | |
| 4468 | 109 ::error ("%s: NaN is invalid as size specification", who.c_str ()); |
| 2117 | 110 |
| 111 return retval; | |
| 112 } | |
| 113 | |
| 114 static void | |
| 5275 | 115 get_size (const Array<double>& size, octave_idx_type& nr, octave_idx_type& nc, bool& one_elt_size_spec, |
| 4468 | 116 const std::string& who) |
| 2117 | 117 { |
| 118 nr = -1; | |
| 119 nc = -1; | |
| 120 | |
| 3268 | 121 one_elt_size_spec = false; |
| 122 | |
| 2117 | 123 double dnr = -1.0; |
| 124 double dnc = -1.0; | |
| 125 | |
| 5275 | 126 octave_idx_type sz_len = size.length (); |
| 3810 | 127 |
| 128 if (sz_len == 1) | |
| 2601 | 129 { |
| 3268 | 130 one_elt_size_spec = true; |
| 131 | |
| 3810 | 132 dnr = size (0); |
| 4293 | 133 |
| 134 dnc = (dnr == 0.0) ? 0.0 : 1.0; | |
| 2601 | 135 } |
| 3810 | 136 else if (sz_len == 2) |
| 2117 | 137 { |
| 3810 | 138 dnr = size (0); |
| 139 | |
| 140 if (! xisinf (dnr)) | |
| 141 dnc = size (1); | |
| 142 else | |
| 4468 | 143 ::error ("%s: invalid size specification", who.c_str ()); |
| 2117 | 144 } |
| 145 else | |
| 4468 | 146 ::error ("%s: invalid size specification", who.c_str ()); |
| 2117 | 147 |
| 148 if (! error_state) | |
| 149 { | |
| 4468 | 150 nr = get_size (dnr, who); |
| 2117 | 151 |
| 3268 | 152 if (! error_state && dnc >= 0.0) |
| 4468 | 153 nc = get_size (dnc, who); |
| 2117 | 154 } |
| 155 } | |
| 156 | |
| 3523 | 157 scanf_format_list::scanf_format_list (const std::string& s) |
| 2117 | 158 : nconv (0), curr_idx (0), list (16), buf (0) |
| 159 { | |
| 160 int num_elts = 0; | |
| 161 | |
| 162 int n = s.length (); | |
| 163 | |
| 164 int i = 0; | |
| 165 | |
| 2215 | 166 int width = 0; |
| 2117 | 167 bool discard = false; |
| 168 char modifier = '\0'; | |
| 169 char type = '\0'; | |
| 170 | |
| 171 bool have_more = true; | |
| 172 | |
| 173 while (i < n) | |
| 174 { | |
| 175 have_more = true; | |
| 176 | |
| 177 if (! buf) | |
| 5765 | 178 buf = new std::ostringstream (); |
| 2117 | 179 |
| 180 if (s[i] == '%') | |
| 181 { | |
| 3483 | 182 // Process percent-escape conversion type. |
| 183 | |
| 2215 | 184 process_conversion (s, i, n, width, discard, type, modifier, |
| 185 num_elts); | |
| 2117 | 186 have_more = (buf != 0); |
| 187 } | |
| 3483 | 188 else if (isspace (s[i])) |
| 2117 | 189 { |
| 3483 | 190 type = scanf_format_elt::whitespace_conversion; |
| 191 | |
| 2215 | 192 width = 0; |
| 2117 | 193 discard = false; |
| 194 modifier = '\0'; | |
| 3483 | 195 *buf << " "; |
| 196 | |
| 197 while (++i < n && isspace (s[i])) | |
| 198 /* skip whitespace */; | |
| 199 | |
| 200 add_elt_to_list (width, discard, type, modifier, num_elts); | |
| 201 | |
| 202 have_more = false; | |
| 203 } | |
| 204 else | |
| 205 { | |
| 206 type = scanf_format_elt::literal_conversion; | |
| 207 | |
| 208 width = 0; | |
| 209 discard = false; | |
| 210 modifier = '\0'; | |
| 211 | |
| 212 while (i < n && ! isspace (s[i]) && s[i] != '%') | |
| 213 *buf << s[i++]; | |
| 214 | |
| 215 add_elt_to_list (width, discard, type, modifier, num_elts); | |
| 216 | |
| 217 have_more = false; | |
| 2117 | 218 } |
| 219 | |
| 220 if (nconv < 0) | |
| 221 { | |
| 222 have_more = false; | |
| 223 break; | |
| 224 } | |
| 225 } | |
| 226 | |
| 227 if (have_more) | |
| 2215 | 228 add_elt_to_list (width, discard, type, modifier, num_elts); |
| 2117 | 229 |
| 230 list.resize (num_elts); | |
| 231 | |
| 232 delete buf; | |
| 233 } | |
| 234 | |
| 235 scanf_format_list::~scanf_format_list (void) | |
| 236 { | |
| 5275 | 237 octave_idx_type n = list.length (); |
| 238 | |
| 239 for (octave_idx_type i = 0; i < n; i++) | |
| 2117 | 240 { |
| 3340 | 241 scanf_format_elt *elt = list(i); |
| 2117 | 242 delete elt; |
| 243 } | |
| 244 } | |
| 245 | |
| 246 void | |
| 2215 | 247 scanf_format_list::add_elt_to_list (int width, bool discard, char type, |
| 3483 | 248 char modifier, int& num_elts, |
| 3523 | 249 const std::string& char_class) |
| 2117 | 250 { |
| 251 if (buf) | |
| 252 { | |
| 5765 | 253 std::string text = buf->str (); |
| 4051 | 254 |
| 255 if (! text.empty ()) | |
| 2117 | 256 { |
| 4051 | 257 scanf_format_elt *elt |
| 258 = new scanf_format_elt (text.c_str (), width, discard, type, | |
| 259 modifier, char_class); | |
| 260 | |
| 261 if (num_elts == list.length ()) | |
| 262 list.resize (2 * num_elts); | |
| 263 | |
| 264 list(num_elts++) = elt; | |
| 2117 | 265 } |
| 266 | |
| 267 delete buf; | |
| 268 buf = 0; | |
| 269 } | |
| 270 } | |
| 271 | |
| 3535 | 272 static std::string |
| 3523 | 273 expand_char_class (const std::string& s) |
| 3483 | 274 { |
| 3523 | 275 std::string retval; |
| 3483 | 276 |
| 277 size_t len = s.length (); | |
| 278 | |
| 279 size_t i = 0; | |
| 280 | |
| 281 while (i < len) | |
| 282 { | |
| 283 unsigned char c = s[i++]; | |
| 284 | |
| 285 if (c == '-' && i > 1 && i < len | |
| 5760 | 286 && static_cast<unsigned char> (s[i-2]) <= static_cast<unsigned char> (s[i])) |
| 3483 | 287 { |
| 288 // Add all characters from the range except the first (we | |
| 289 // already added it below). | |
| 290 | |
| 291 for (c = s[i-2]+1; c < s[i]; c++) | |
| 292 retval += c; | |
| 293 } | |
| 294 else | |
| 295 { | |
| 296 // Add the character to the class. Only add '-' if it is | |
| 297 // the last character in the class. | |
| 298 | |
| 299 if (c != '-' || i == len) | |
| 300 retval += c; | |
| 301 } | |
| 302 } | |
| 303 | |
| 304 return retval; | |
| 305 } | |
| 306 | |
| 2117 | 307 void |
| 3523 | 308 scanf_format_list::process_conversion (const std::string& s, int& i, int n, |
| 2215 | 309 int& width, bool& discard, char& type, |
| 2117 | 310 char& modifier, int& num_elts) |
| 311 { | |
| 2215 | 312 width = 0; |
| 2117 | 313 discard = false; |
| 314 modifier = '\0'; | |
| 315 type = '\0'; | |
| 316 | |
| 317 *buf << s[i++]; | |
| 318 | |
| 319 bool have_width = false; | |
| 320 | |
| 321 while (i < n) | |
| 322 { | |
| 323 switch (s[i]) | |
| 324 { | |
| 325 case '*': | |
| 326 if (discard) | |
| 327 nconv = -1; | |
| 328 else | |
| 329 { | |
| 330 discard = true; | |
| 331 *buf << s[i++]; | |
| 332 } | |
| 333 break; | |
| 334 | |
| 335 case '0': case '1': case '2': case '3': case '4': | |
| 336 case '5': case '6': case '7': case '8': case '9': | |
| 337 if (have_width) | |
| 338 nconv = -1; | |
| 339 else | |
| 340 { | |
| 2215 | 341 char c = s[i++]; |
| 342 width = width * 10 + c - '0'; | |
| 2117 | 343 have_width = true; |
| 2215 | 344 *buf << c; |
| 2117 | 345 while (i < n && isdigit (s[i])) |
| 2215 | 346 { |
| 347 c = s[i++]; | |
| 348 width = width * 10 + c - '0'; | |
| 349 *buf << c; | |
| 350 } | |
| 2117 | 351 } |
| 352 break; | |
| 353 | |
| 354 case 'h': case 'l': case 'L': | |
| 355 if (modifier != '\0') | |
| 356 nconv = -1; | |
| 357 else | |
| 2663 | 358 modifier = s[i++]; |
| 2117 | 359 break; |
| 360 | |
| 361 case 'd': case 'i': case 'o': case 'u': case 'x': | |
| 362 if (modifier == 'L') | |
| 363 { | |
| 364 nconv = -1; | |
| 365 break; | |
| 366 } | |
| 367 goto fini; | |
| 368 | |
| 369 case 'e': case 'f': case 'g': | |
| 370 if (modifier == 'h') | |
| 371 { | |
| 372 nconv = -1; | |
| 373 break; | |
| 374 } | |
| 2663 | 375 |
| 376 // No float or long double conversions, thanks. | |
| 377 *buf << 'l'; | |
| 378 | |
| 2117 | 379 goto fini; |
| 380 | |
| 381 case 'c': case 's': case 'p': case '%': case '[': | |
| 382 if (modifier != '\0') | |
| 383 { | |
| 384 nconv = -1; | |
| 385 break; | |
| 386 } | |
| 387 goto fini; | |
| 388 | |
| 389 fini: | |
| 390 { | |
| 2215 | 391 if (finish_conversion (s, i, n, width, discard, type, |
| 2117 | 392 modifier, num_elts) == 0) |
| 393 return; | |
| 394 } | |
| 395 break; | |
| 396 | |
| 397 default: | |
| 398 nconv = -1; | |
| 399 break; | |
| 400 } | |
| 401 | |
| 402 if (nconv < 0) | |
| 403 break; | |
| 404 } | |
| 405 | |
| 406 nconv = -1; | |
| 407 } | |
| 408 | |
| 409 int | |
| 3523 | 410 scanf_format_list::finish_conversion (const std::string& s, int& i, int n, |
| 2215 | 411 int& width, bool discard, char& type, |
| 2117 | 412 char modifier, int& num_elts) |
| 413 { | |
| 414 int retval = 0; | |
| 415 | |
| 3523 | 416 std::string char_class; |
| 3483 | 417 |
| 3640 | 418 int beg_idx = -1; |
| 419 int end_idx = -1; | |
| 420 | |
| 2117 | 421 if (s[i] == '%') |
| 3640 | 422 { |
| 423 type = '%'; | |
| 424 *buf << s[i++]; | |
| 425 } | |
| 2117 | 426 else |
| 427 { | |
| 428 type = s[i]; | |
| 429 | |
| 430 if (s[i] == '[') | |
| 431 { | |
| 432 *buf << s[i++]; | |
| 433 | |
| 434 if (i < n) | |
| 435 { | |
| 3483 | 436 beg_idx = i; |
| 437 | |
| 2117 | 438 if (s[i] == '^') |
| 439 { | |
| 440 type = '^'; | |
| 441 *buf << s[i++]; | |
| 3483 | 442 |
| 443 if (i < n) | |
| 444 { | |
| 445 beg_idx = i; | |
| 446 | |
| 447 if (s[i] == ']') | |
| 448 *buf << s[i++]; | |
| 449 } | |
| 2117 | 450 } |
| 451 else if (s[i] == ']') | |
| 452 *buf << s[i++]; | |
| 453 } | |
| 454 | |
| 455 while (i < n && s[i] != ']') | |
| 456 *buf << s[i++]; | |
| 457 | |
| 458 if (i < n && s[i] == ']') | |
| 3483 | 459 { |
| 460 end_idx = i-1; | |
| 461 *buf << s[i++]; | |
| 462 } | |
| 2117 | 463 |
| 464 if (s[i-1] != ']') | |
| 465 retval = nconv = -1; | |
| 466 } | |
| 467 else | |
| 2215 | 468 *buf << s[i++]; |
| 3640 | 469 } |
| 470 | |
| 471 nconv++; | |
| 472 | |
| 473 if (nconv > 0) | |
| 474 { | |
| 475 if (beg_idx >= 0 && end_idx >= 0) | |
| 476 char_class = expand_char_class (s.substr (beg_idx, | |
| 477 end_idx - beg_idx + 1)); | |
| 478 | |
| 479 add_elt_to_list (width, discard, type, modifier, num_elts, char_class); | |
| 2117 | 480 } |
| 481 | |
| 482 return retval; | |
| 483 } | |
| 484 | |
| 485 void | |
| 486 scanf_format_list::printme (void) const | |
| 487 { | |
| 488 int n = list.length (); | |
| 489 | |
| 490 for (int i = 0; i < n; i++) | |
| 491 { | |
| 3340 | 492 scanf_format_elt *elt = list(i); |
| 2117 | 493 |
| 3531 | 494 std::cerr |
| 495 << "width: " << elt->width << "\n" | |
| 496 << "discard: " << elt->discard << "\n" | |
| 497 << "type: "; | |
| 3483 | 498 |
| 499 if (elt->type == scanf_format_elt::literal_conversion) | |
| 3531 | 500 std::cerr << "literal text\n"; |
| 3483 | 501 else if (elt->type == scanf_format_elt::whitespace_conversion) |
| 3531 | 502 std::cerr << "whitespace\n"; |
| 3483 | 503 else |
| 3531 | 504 std::cerr << elt->type << "\n"; |
| 505 | |
| 506 std::cerr | |
| 507 << "modifier: " << elt->modifier << "\n" | |
| 508 << "char_class: `" << undo_string_escapes (elt->char_class) << "'\n" | |
| 509 << "text: `" << undo_string_escapes (elt->text) << "'\n\n"; | |
| 2117 | 510 } |
| 511 } | |
| 512 | |
| 513 bool | |
| 514 scanf_format_list::all_character_conversions (void) | |
| 515 { | |
| 516 int n = list.length (); | |
| 517 | |
| 518 if (n > 0) | |
| 519 { | |
| 520 for (int i = 0; i < n; i++) | |
| 521 { | |
| 3340 | 522 scanf_format_elt *elt = list(i); |
| 2117 | 523 |
| 524 switch (elt->type) | |
| 525 { | |
| 3483 | 526 case 'c': case 's': case '%': case '[': case '^': |
| 527 case scanf_format_elt::literal_conversion: | |
| 528 case scanf_format_elt::whitespace_conversion: | |
| 2117 | 529 break; |
| 530 | |
| 531 default: | |
| 532 return false; | |
| 533 break; | |
| 534 } | |
| 535 } | |
| 536 | |
| 537 return true; | |
| 538 } | |
| 539 else | |
| 540 return false; | |
| 541 } | |
| 542 | |
| 543 bool | |
| 544 scanf_format_list::all_numeric_conversions (void) | |
| 545 { | |
| 546 int n = list.length (); | |
| 547 | |
| 548 if (n > 0) | |
| 549 { | |
| 550 for (int i = 0; i < n; i++) | |
| 551 { | |
| 3340 | 552 scanf_format_elt *elt = list(i); |
| 2117 | 553 |
| 554 switch (elt->type) | |
| 555 { | |
| 556 case 'd': case 'i': case 'o': case 'u': case 'x': | |
| 557 case 'e': case 'f': case 'g': | |
| 558 break; | |
| 559 | |
| 560 default: | |
| 561 return false; | |
| 562 break; | |
| 563 } | |
| 564 } | |
| 565 | |
| 566 return true; | |
| 567 } | |
| 568 else | |
| 569 return false; | |
| 570 } | |
| 571 | |
| 572 // Ugh again. | |
| 573 | |
| 3523 | 574 printf_format_list::printf_format_list (const std::string& s) |
| 2117 | 575 : nconv (0), curr_idx (0), list (16), buf (0) |
| 576 { | |
| 577 int num_elts = 0; | |
| 578 | |
| 579 int n = s.length (); | |
| 580 | |
| 581 int i = 0; | |
| 582 | |
| 583 int args = 0; | |
| 3643 | 584 std::string flags; |
| 3640 | 585 int fw = 0; |
| 586 int prec = 0; | |
| 2117 | 587 char modifier = '\0'; |
| 588 char type = '\0'; | |
| 589 | |
| 590 bool have_more = true; | |
| 3640 | 591 bool empty_buf = true; |
| 2117 | 592 |
| 4223 | 593 if (n == 0) |
| 2117 | 594 { |
| 4223 | 595 printf_format_elt *elt |
| 596 = new printf_format_elt ("", args, fw, prec, flags, type, modifier); | |
| 597 | |
| 598 list(num_elts++) = elt; | |
| 599 | |
| 600 list.resize (num_elts); | |
| 601 } | |
| 602 else | |
| 603 { | |
| 604 while (i < n) | |
| 3640 | 605 { |
| 4223 | 606 have_more = true; |
| 607 | |
| 608 if (! buf) | |
| 609 { | |
| 5765 | 610 buf = new std::ostringstream (); |
| 4223 | 611 empty_buf = true; |
| 612 } | |
| 613 | |
| 614 switch (s[i]) | |
| 615 { | |
| 616 case '%': | |
| 3640 | 617 { |
| 4223 | 618 if (empty_buf) |
| 619 { | |
| 620 process_conversion (s, i, n, args, flags, fw, prec, | |
| 621 type, modifier, num_elts); | |
| 622 | |
| 623 have_more = (buf != 0); | |
| 624 } | |
| 625 else | |
| 626 add_elt_to_list (args, flags, fw, prec, type, modifier, | |
| 627 num_elts); | |
| 3640 | 628 } |
| 4223 | 629 break; |
| 630 | |
| 631 default: | |
| 632 { | |
| 633 args = 0; | |
| 634 flags = ""; | |
| 635 fw = 0; | |
| 636 prec = 0; | |
| 637 modifier = '\0'; | |
| 638 type = '\0'; | |
| 639 *buf << s[i++]; | |
| 640 empty_buf = false; | |
| 641 } | |
| 642 break; | |
| 643 } | |
| 644 | |
| 645 if (nconv < 0) | |
| 646 { | |
| 647 have_more = false; | |
| 648 break; | |
| 649 } | |
| 2117 | 650 } |
| 651 | |
| 4223 | 652 if (have_more) |
| 653 add_elt_to_list (args, flags, fw, prec, type, modifier, num_elts); | |
| 654 | |
| 655 list.resize (num_elts); | |
| 656 | |
| 657 delete buf; | |
| 2117 | 658 } |
| 659 } | |
| 660 | |
| 661 printf_format_list::~printf_format_list (void) | |
| 662 { | |
| 663 int n = list.length (); | |
| 664 | |
| 665 for (int i = 0; i < n; i++) | |
| 666 { | |
| 3340 | 667 printf_format_elt *elt = list(i); |
| 2117 | 668 delete elt; |
| 669 } | |
| 670 } | |
| 671 | |
| 672 void | |
| 3640 | 673 printf_format_list::add_elt_to_list (int args, const std::string& flags, |
| 674 int fw, int prec, char type, | |
| 675 char modifier, int& num_elts) | |
| 2117 | 676 { |
| 677 if (buf) | |
| 678 { | |
| 5765 | 679 std::string text = buf->str (); |
| 4051 | 680 |
| 681 if (! text.empty ()) | |
| 2117 | 682 { |
| 4051 | 683 printf_format_elt *elt |
| 684 = new printf_format_elt (text.c_str (), args, fw, prec, flags, | |
| 685 type, modifier); | |
| 686 | |
| 687 if (num_elts == list.length ()) | |
| 688 list.resize (2 * num_elts); | |
| 689 | |
| 690 list(num_elts++) = elt; | |
| 2117 | 691 } |
| 692 | |
| 693 delete buf; | |
| 694 buf = 0; | |
| 695 } | |
| 696 } | |
| 697 | |
| 698 void | |
| 3640 | 699 printf_format_list::process_conversion |
| 700 (const std::string& s, int& i, int n, int& args, std::string& flags, | |
| 701 int& fw, int& prec, char& modifier, char& type, int& num_elts) | |
| 2117 | 702 { |
| 703 args = 0; | |
| 3640 | 704 flags = ""; |
| 705 fw = 0; | |
| 706 prec = 0; | |
| 2117 | 707 modifier = '\0'; |
| 708 type = '\0'; | |
| 709 | |
| 710 *buf << s[i++]; | |
| 711 | |
| 4587 | 712 bool nxt = false; |
| 2117 | 713 |
| 714 while (i < n) | |
| 715 { | |
| 716 switch (s[i]) | |
| 717 { | |
| 718 case '-': case '+': case ' ': case '0': case '#': | |
| 3640 | 719 flags += s[i]; |
| 2117 | 720 *buf << s[i++]; |
| 721 break; | |
| 722 | |
| 723 default: | |
| 4587 | 724 nxt = true; |
| 2117 | 725 break; |
| 726 } | |
| 727 | |
| 4587 | 728 if (nxt) |
| 2117 | 729 break; |
| 730 } | |
| 731 | |
| 732 if (i < n) | |
| 733 { | |
| 734 if (s[i] == '*') | |
| 735 { | |
| 3640 | 736 fw = -1; |
| 2117 | 737 args++; |
| 738 *buf << s[i++]; | |
| 739 } | |
| 740 else | |
| 741 { | |
| 3640 | 742 if (isdigit (s[i])) |
| 743 { | |
| 4587 | 744 int nn = 0; |
| 3643 | 745 std::string tmp = s.substr (i); |
| 4587 | 746 sscanf (tmp.c_str (), "%d%n", &fw, &nn); |
| 3640 | 747 } |
| 748 | |
| 2117 | 749 while (i < n && isdigit (s[i])) |
| 750 *buf << s[i++]; | |
| 751 } | |
| 752 } | |
| 753 | |
| 754 if (i < n && s[i] == '.') | |
| 755 { | |
| 756 *buf << s[i++]; | |
| 757 | |
| 758 if (i < n) | |
| 759 { | |
| 760 if (s[i] == '*') | |
| 761 { | |
| 3640 | 762 prec = -1; |
| 2117 | 763 args++; |
| 764 *buf << s[i++]; | |
| 765 } | |
| 766 else | |
| 767 { | |
| 3640 | 768 if (isdigit (s[i])) |
| 769 { | |
| 4587 | 770 int nn = 0; |
| 3643 | 771 std::string tmp = s.substr (i); |
| 4587 | 772 sscanf (tmp.c_str (), "%d%n", &prec, &nn); |
| 3640 | 773 } |
| 774 | |
| 2117 | 775 while (i < n && isdigit (s[i])) |
| 776 *buf << s[i++]; | |
| 777 } | |
| 778 } | |
| 779 } | |
| 780 | |
| 781 if (i < n) | |
| 782 { | |
| 783 switch (s[i]) | |
| 784 { | |
| 785 case 'h': case 'l': case 'L': | |
| 786 modifier = s[i]; | |
| 787 *buf << s[i++]; | |
| 788 break; | |
| 789 | |
| 790 default: | |
| 791 break; | |
| 792 } | |
| 793 } | |
| 794 | |
| 795 if (i < n) | |
| 3640 | 796 finish_conversion (s, i, args, flags, fw, prec, modifier, type, num_elts); |
| 2117 | 797 else |
| 798 nconv = -1; | |
| 799 } | |
| 800 | |
| 801 void | |
| 3640 | 802 printf_format_list::finish_conversion |
| 803 (const std::string& s, int& i, int args, const std::string& flags, | |
| 804 int fw, int prec, char modifier, char& type, int& num_elts) | |
| 2117 | 805 |
| 806 { | |
| 807 switch (s[i]) | |
| 808 { | |
| 809 case 'd': case 'i': case 'o': case 'x': case 'X': | |
| 810 case 'u': case 'c': | |
| 811 if (modifier == 'L') | |
| 812 { | |
| 813 nconv = -1; | |
| 814 break; | |
| 815 } | |
| 816 goto fini; | |
| 817 | |
| 818 case 'f': case 'e': case 'E': case 'g': case 'G': | |
| 819 if (modifier == 'h' || modifier == 'l') | |
| 820 { | |
| 821 nconv = -1; | |
| 822 break; | |
| 823 } | |
| 824 goto fini; | |
| 825 | |
| 826 case 's': case 'p': case '%': | |
| 827 if (modifier != '\0') | |
| 828 { | |
| 829 nconv = -1; | |
| 830 break; | |
| 831 } | |
| 832 goto fini; | |
| 833 | |
| 834 fini: | |
| 835 | |
| 3640 | 836 type = s[i]; |
| 837 | |
| 838 *buf << s[i++]; | |
| 839 | |
| 840 if (type != '%' || args != 0) | |
| 841 nconv++; | |
| 842 | |
| 843 if (type != '%') | |
| 844 args++; | |
| 845 | |
| 846 add_elt_to_list (args, flags, fw, prec, type, modifier, num_elts); | |
| 847 | |
| 2117 | 848 break; |
| 849 | |
| 850 default: | |
| 851 nconv = -1; | |
| 852 break; | |
| 853 } | |
| 854 } | |
| 855 | |
| 856 void | |
| 857 printf_format_list::printme (void) const | |
| 858 { | |
| 859 int n = list.length (); | |
| 860 | |
| 861 for (int i = 0; i < n; i++) | |
| 862 { | |
| 3340 | 863 printf_format_elt *elt = list(i); |
| 2117 | 864 |
| 3640 | 865 std::cerr |
| 866 << "args: " << elt->args << "\n" | |
| 867 << "flags: `" << elt->flags << "'\n" | |
| 868 << "width: " << elt->fw << "\n" | |
| 869 << "prec: " << elt->prec << "\n" | |
| 870 << "type: `" << elt->type << "'\n" | |
| 871 << "modifier: `" << elt->modifier << "'\n" | |
| 872 << "text: `" << undo_string_escapes (elt->text) << "'\n\n"; | |
| 2117 | 873 } |
| 874 } | |
| 875 | |
| 3145 | 876 int |
| 3148 | 877 octave_base_stream::file_number (void) |
| 3145 | 878 { |
| 879 // Kluge alert! | |
| 880 | |
| 881 if (name () == "stdin") | |
| 882 return 0; | |
| 883 | |
| 884 if (name () == "stdout") | |
| 885 return 1; | |
| 886 | |
| 887 if (name () == "stderr") | |
| 888 return 2; | |
| 889 | |
| 890 int retval = -1; | |
| 891 | |
| 3523 | 892 std::istream *is = input_stream (); |
| 893 std::ostream *os = output_stream (); | |
| 3145 | 894 |
| 3775 | 895 // There is no standard way to get the underlying file descriptor from |
| 896 // std::filebuf (nor in the GNU libstdc++-v3 implementation). We cache | |
| 897 // the descriptor in c_file_ptr_buf, and then extract it here. | |
| 898 | |
| 6757 | 899 c_file_ptr_buf *ibuf |
| 900 = is ? dynamic_cast<c_file_ptr_buf *> (is->rdbuf ()) : 0; | |
| 901 | |
| 902 c_file_ptr_buf *obuf | |
| 903 = os ? dynamic_cast<c_file_ptr_buf *> (os->rdbuf ()) : 0; | |
| 3775 | 904 |
| 905 int i_fid = ibuf ? ibuf->file_number () : -1; | |
| 906 int o_fid = obuf ? obuf->file_number () : -1; | |
| 3145 | 907 |
| 908 if (i_fid >= 0) | |
| 909 { | |
| 910 if (o_fid >= 0) | |
| 911 retval = (i_fid == o_fid) ? i_fid : -1; | |
| 912 else | |
| 913 retval = i_fid; | |
| 914 } | |
| 915 else if (o_fid >= 0) | |
| 916 retval = o_fid; | |
| 917 | |
| 918 return retval; | |
| 919 } | |
| 920 | |
| 2117 | 921 void |
| 3523 | 922 octave_base_stream::error (const std::string& msg) |
| 2117 | 923 { |
| 924 fail = true; | |
| 925 errmsg = msg; | |
| 926 } | |
| 927 | |
| 928 void | |
| 4468 | 929 octave_base_stream::error (const std::string& who, const std::string& msg) |
| 930 { | |
| 931 fail = true; | |
| 6296 | 932 errmsg = who + ": " + msg; |
| 4468 | 933 } |
| 934 | |
| 935 void | |
| 2117 | 936 octave_base_stream::clear (void) |
| 937 { | |
| 4889 | 938 fail = false; |
| 939 errmsg = ""; | |
| 940 } | |
| 941 | |
| 942 void | |
| 943 octave_base_stream::clearerr (void) | |
| 944 { | |
| 4888 | 945 std::istream *is = input_stream (); |
| 946 std::ostream *os = output_stream (); | |
| 947 | |
| 948 if (is) | |
| 949 is->clear (); | |
| 950 | |
| 951 if (os) | |
| 952 os->clear (); | |
| 2117 | 953 } |
| 954 | |
| 955 // Functions that are defined for all input streams (input streams | |
| 956 // are those that define is). | |
| 957 | |
| 3536 | 958 std::string |
| 5275 | 959 octave_base_stream::do_gets (octave_idx_type max_len, bool& err, |
| 4468 | 960 bool strip_newline, const std::string& who) |
| 2117 | 961 { |
| 3523 | 962 std::string retval; |
| 2117 | 963 |
|
8773
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964 if ((interactive || forced_interactive) && file_number () == 0) |
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965 { |
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966 ::error ("%s: unable to read from stdin while running interactively", |
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967 who.c_str ()); |
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968 |
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969 return retval; |
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970 } |
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971 |
| 2117 | 972 err = false; |
| 973 | |
| 3523 | 974 std::istream *isp = input_stream (); |
| 2117 | 975 |
| 976 if (isp) | |
| 977 { | |
| 3523 | 978 std::istream& is = *isp; |
| 2117 | 979 |
| 5765 | 980 std::ostringstream buf; |
| 2117 | 981 |
| 982 int c = 0; | |
| 3553 | 983 int char_count = 0; |
| 6345 | 984 |
| 985 if (max_len != 0) | |
| 2117 | 986 { |
| 6345 | 987 while (is && (c = is.get ()) != EOF) |
| 2117 | 988 { |
| 6345 | 989 char_count++; |
| 990 | |
|
8739
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991 // Handle CRLF, CR, or LF as line ending. |
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992 |
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993 if (c == '\r') |
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994 { |
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995 if (! strip_newline) |
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996 buf << static_cast<char> (c); |
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997 |
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998 c = is.get (); |
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999 |
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1000 if (c != EOF) |
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1001 { |
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1002 if (c == '\n') |
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1003 { |
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1004 char_count++; |
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1005 |
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1006 if (! strip_newline) |
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1007 buf << static_cast<char> (c); |
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1008 } |
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1009 else |
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1010 is.putback (c); |
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1011 } |
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1012 |
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1013 break; |
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1014 } |
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1015 else if (c == '\n') |
| 6345 | 1016 { |
| 1017 if (! strip_newline) | |
| 1018 buf << static_cast<char> (c); | |
| 1019 | |
| 1020 break; | |
| 1021 } | |
| 1022 else | |
| 5760 | 1023 buf << static_cast<char> (c); |
| 6345 | 1024 |
| 1025 if (max_len > 0 && char_count == max_len) | |
| 1026 break; | |
| 2117 | 1027 } |
| 6345 | 1028 } |
| 1029 | |
| 1030 if (! is.eof () && char_count > 0) | |
| 1031 { | |
| 1032 // GAGME. Matlab seems to check for EOF even if the last | |
| 1033 // character in a file is a newline character. This is NOT | |
| 1034 // what the corresponding C-library functions do. | |
| 1035 int disgusting_compatibility_hack = is.get (); | |
| 1036 if (! is.eof ()) | |
| 1037 is.putback (disgusting_compatibility_hack); | |
| 2117 | 1038 } |
| 1039 | |
| 4224 | 1040 if (is.good () || (is.eof () && char_count > 0)) |
| 5765 | 1041 retval = buf.str (); |
| 4224 | 1042 else |
| 1043 { | |
| 1044 err = true; | |
| 4468 | 1045 |
| 4224 | 1046 if (is.eof () && char_count == 0) |
| 4468 | 1047 error (who, "at end of file"); |
| 4224 | 1048 else |
| 4468 | 1049 error (who, "read error"); |
| 4224 | 1050 } |
| 2117 | 1051 } |
| 1052 else | |
| 1053 { | |
| 1054 err = true; | |
| 4468 | 1055 invalid_operation (who, "reading"); |
| 2117 | 1056 } |
| 1057 | |
| 1058 return retval; | |
| 1059 } | |
| 1060 | |
| 3536 | 1061 std::string |
| 5275 | 1062 octave_base_stream::getl (octave_idx_type max_len, bool& err, const std::string& who) |
| 2117 | 1063 { |
| 4468 | 1064 return do_gets (max_len, err, true, who); |
| 2117 | 1065 } |
| 1066 | |
| 3536 | 1067 std::string |
| 5275 | 1068 octave_base_stream::gets (octave_idx_type max_len, bool& err, const std::string& who) |
| 2117 | 1069 { |
| 4468 | 1070 return do_gets (max_len, err, false, who); |
| 2117 | 1071 } |
| 1072 | |
| 9701 | 1073 long |
| 1074 octave_base_stream::skipl (long num, bool& err, const std::string& who) | |
| 1075 { | |
| 1076 long cnt = -1; | |
| 1077 | |
| 1078 if ((interactive || forced_interactive) && file_number () == 0) | |
| 1079 { | |
| 1080 ::error ("%s: unable to read from stdin while running interactively", | |
| 1081 who.c_str ()); | |
| 1082 | |
| 1083 return count; | |
| 1084 } | |
| 1085 | |
| 1086 err = false; | |
| 1087 | |
| 1088 std::istream *isp = input_stream (); | |
| 1089 | |
| 1090 if (isp) | |
| 1091 { | |
| 1092 std::istream& is = *isp; | |
| 1093 | |
| 1094 int c = 0, lastc = -1; | |
| 1095 cnt = 0; | |
| 1096 | |
| 1097 while (is && (c = is.get ()) != EOF) | |
| 1098 { | |
| 1099 // Handle CRLF, CR, or LF as line ending. | |
| 1100 | |
| 1101 if (c == '\r' || (c == '\n' && lastc != '\r')) | |
| 1102 { | |
| 1103 if (++cnt == num) | |
| 1104 break; | |
| 1105 } | |
| 1106 | |
| 1107 lastc = c; | |
| 1108 } | |
| 1109 | |
| 1110 // Maybe eat the following \n if \r was just met. | |
| 1111 if (c == '\r' && is.peek () == '\n') | |
| 1112 is.get (); | |
| 1113 | |
| 1114 if (is.bad ()) | |
| 1115 { | |
| 1116 err = true; | |
| 1117 error (who, "read error"); | |
| 1118 } | |
| 1119 | |
| 1120 if (err) | |
| 1121 cnt = -1; | |
| 1122 } | |
| 1123 else | |
| 1124 { | |
| 1125 err = true; | |
| 1126 invalid_operation (who, "reading"); | |
| 1127 } | |
| 1128 | |
| 1129 return cnt; | |
| 1130 } | |
| 1131 | |
| 3640 | 1132 #define OCTAVE_SCAN(is, fmt, arg) octave_scan (is, fmt, arg) |
| 3636 | 1133 |
| 1134 template <class T> | |
| 1135 std::istream& | |
| 6767 | 1136 octave_scan_1 (std::istream& is, const scanf_format_elt& fmt, T* valptr) |
| 3636 | 1137 { |
| 3779 | 1138 T& ref = *valptr; |
| 1139 | |
| 1140 switch (fmt.type) | |
| 1141 { | |
| 1142 case 'o': | |
| 4926 | 1143 is >> std::oct >> ref >> std::dec; |
| 3779 | 1144 break; |
| 1145 | |
| 1146 case 'x': | |
| 4926 | 1147 is >> std::hex >> ref >> std::dec; |
| 1148 break; | |
| 1149 | |
| 1150 case 'i': | |
| 1151 { | |
| 1152 int c1 = is.get (); | |
| 1153 | |
| 1154 if (! is.eof ()) | |
| 1155 { | |
| 1156 if (c1 == '0') | |
| 1157 { | |
|
7709
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octave_scan_1: fix reading of hex numbers
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parents:
7538
diff
changeset
|
1158 int c2 = is.peek (); |
| 4926 | 1159 |
| 1160 if (c2 == 'x' || c2 == 'X') | |
|
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octave_scan_1: fix reading of hex numbers
Jaroslav Hajek <highegg@gmail.com>
parents:
7538
diff
changeset
|
1161 { |
|
fa41af732801
octave_scan_1: fix reading of hex numbers
Jaroslav Hajek <highegg@gmail.com>
parents:
7538
diff
changeset
|
1162 is.ignore (); |
|
fa41af732801
octave_scan_1: fix reading of hex numbers
Jaroslav Hajek <highegg@gmail.com>
parents:
7538
diff
changeset
|
1163 if (std::isxdigit (is.peek ())) |
|
fa41af732801
octave_scan_1: fix reading of hex numbers
Jaroslav Hajek <highegg@gmail.com>
parents:
7538
diff
changeset
|
1164 is >> std::hex >> ref >> std::dec; |
|
fa41af732801
octave_scan_1: fix reading of hex numbers
Jaroslav Hajek <highegg@gmail.com>
parents:
7538
diff
changeset
|
1165 else |
|
fa41af732801
octave_scan_1: fix reading of hex numbers
Jaroslav Hajek <highegg@gmail.com>
parents:
7538
diff
changeset
|
1166 ref = 0; |
|
fa41af732801
octave_scan_1: fix reading of hex numbers
Jaroslav Hajek <highegg@gmail.com>
parents:
7538
diff
changeset
|
1167 } |
| 4926 | 1168 else |
| 4927 | 1169 { |
| 1170 if (c2 == '0' || c2 == '1' || c2 == '2' | |
| 1171 || c2 == '3' || c2 == '4' || c2 == '5' | |
| 1172 || c2 == '6' || c2 == '7') | |
| 1173 is >> std::oct >> ref >> std::dec; | |
| 1174 else | |
| 1175 ref = 0; | |
| 1176 } | |
| 4926 | 1177 } |
| 1178 else | |
| 1179 { | |
| 1180 is.putback (c1); | |
| 1181 | |
| 1182 is >> ref; | |
| 1183 } | |
| 1184 } | |
| 1185 } | |
| 3779 | 1186 break; |
| 1187 | |
| 1188 default: | |
| 1189 is >> ref; | |
| 1190 break; | |
| 1191 } | |
| 3639 | 1192 |
| 3638 | 1193 return is; |
| 3636 | 1194 } |
| 1195 | |
| 6767 | 1196 template <class T> |
| 1197 std::istream& | |
| 1198 octave_scan (std::istream& is, const scanf_format_elt& fmt, T* valptr) | |
| 1199 { | |
| 1200 if (fmt.width) | |
| 1201 { | |
| 1202 // Limit input to fmt.width characters by reading into a | |
| 1203 // temporary stringstream buffer. | |
| 1204 | |
| 1205 std::string tmp; | |
| 1206 | |
| 1207 is.width (fmt.width); | |
| 1208 is >> tmp; | |
| 1209 | |
| 1210 std::istringstream ss (tmp); | |
| 1211 | |
| 1212 octave_scan_1 (ss, fmt, valptr); | |
| 1213 } | |
| 1214 else | |
| 1215 octave_scan_1 (is, fmt, valptr); | |
| 1216 | |
| 1217 return is; | |
| 1218 } | |
| 1219 | |
| 3779 | 1220 // Note that this specialization is only used for reading characters, not |
| 1221 // character strings. See BEGIN_S_CONVERSION for details. | |
| 1222 | |
| 1223 template<> | |
| 1224 std::istream& | |
| 4661 | 1225 octave_scan<> (std::istream& is, const scanf_format_elt& /* fmt */, |
| 1226 char* valptr) | |
| 3779 | 1227 { |
| 1228 return is >> valptr; | |
| 1229 } | |
| 3636 | 1230 |
| 4595 | 1231 template std::istream& |
| 1232 octave_scan (std::istream&, const scanf_format_elt&, int*); | |
| 1233 | |
| 1234 template std::istream& | |
| 1235 octave_scan (std::istream&, const scanf_format_elt&, long int*); | |
| 1236 | |
| 1237 template std::istream& | |
| 1238 octave_scan (std::istream&, const scanf_format_elt&, short int*); | |
| 1239 | |
| 1240 template std::istream& | |
| 1241 octave_scan (std::istream&, const scanf_format_elt&, unsigned int*); | |
| 1242 | |
| 1243 template std::istream& | |
| 1244 octave_scan (std::istream&, const scanf_format_elt&, unsigned long int*); | |
| 1245 | |
| 1246 template std::istream& | |
| 1247 octave_scan (std::istream&, const scanf_format_elt&, unsigned short int*); | |
| 1248 | |
| 1249 #if 0 | |
| 1250 template std::istream& | |
| 1251 octave_scan (std::istream&, const scanf_format_elt&, float*); | |
| 1252 #endif | |
| 1253 | |
| 5403 | 1254 template<> |
| 5176 | 1255 std::istream& |
| 5403 | 1256 octave_scan<> (std::istream& is, const scanf_format_elt& fmt, double* valptr) |
| 5176 | 1257 { |
| 1258 double& ref = *valptr; | |
| 1259 | |
| 1260 switch (fmt.type) | |
| 1261 { | |
| 1262 case 'e': | |
| 1263 case 'f': | |
| 1264 case 'g': | |
| 1265 { | |
| 5259 | 1266 int c1 = EOF; |
| 5176 | 1267 |
| 1268 while (is && (c1 = is.get ()) != EOF && isspace (c1)) | |
| 1269 /* skip whitespace */; | |
| 1270 | |
| 1271 if (c1 != EOF) | |
| 1272 { | |
| 1273 if (c1 == 'N') | |
| 1274 { | |
| 1275 int c2 = is.get (); | |
| 1276 | |
| 1277 if (c2 != EOF) | |
| 1278 { | |
| 1279 if (c2 == 'A') | |
| 1280 { | |
| 1281 int c3 = is.get (); | |
| 1282 | |
| 1283 if (c3 != EOF) | |
| 1284 { | |
| 1285 is.putback (c3); | |
| 1286 | |
| 1287 if (isspace (c3) || ispunct (c3)) | |
| 1288 ref = octave_NA; | |
| 1289 else | |
| 1290 { | |
| 1291 is.putback (c2); | |
| 1292 is.putback (c1); | |
| 1293 | |
| 1294 is >> ref; | |
| 1295 } | |
| 1296 } | |
| 1297 else | |
| 1298 { | |
| 1299 is.clear (); | |
| 1300 | |
| 1301 ref = octave_NA; | |
| 1302 } | |
| 1303 } | |
| 1304 else if (c2 == 'a') | |
| 1305 { | |
| 1306 int c3 = is.get (); | |
| 1307 | |
| 1308 if (c3 != EOF) | |
| 1309 { | |
| 1310 if (c3 == 'N') | |
| 1311 { | |
| 1312 int c4 = is.get (); | |
| 1313 | |
| 1314 if (c4 != EOF) | |
| 1315 { | |
| 1316 is.putback (c4); | |
| 1317 | |
| 1318 if (isspace (c4) || ispunct (c4)) | |
| 1319 ref = octave_NaN; | |
| 1320 else | |
| 1321 { | |
| 1322 is.putback (c3); | |
| 1323 is.putback (c2); | |
| 1324 is.putback (c1); | |
| 1325 | |
| 1326 is >> ref; | |
| 1327 } | |
| 1328 } | |
| 1329 else | |
| 1330 { | |
| 1331 is.clear (); | |
| 1332 | |
| 1333 ref = octave_NaN; | |
| 1334 } | |
| 1335 } | |
| 1336 else | |
| 1337 { | |
| 1338 is.putback (c3); | |
| 1339 is.putback (c2); | |
| 1340 is.putback (c1); | |
| 1341 | |
| 1342 is >> ref; | |
| 1343 } | |
| 1344 } | |
| 1345 } | |
| 1346 else | |
| 1347 { | |
| 1348 is.putback (c2); | |
| 1349 is.putback (c1); | |
| 1350 | |
| 1351 is >> ref; | |
| 1352 } | |
| 1353 } | |
| 1354 } | |
| 1355 else if (c1 == 'I') | |
| 1356 { | |
| 1357 int c2 = is.get (); | |
| 1358 | |
| 1359 if (c2 != EOF) | |
| 1360 { | |
| 1361 if (c2 == 'n') | |
| 1362 { | |
| 1363 int c3 = is.get (); | |
| 1364 | |
| 1365 if (c3 != EOF) | |
| 6483 | 1366 { |
| 1367 if (c3 == 'f') | |
| 1368 { | |
| 1369 int c4 = is.get (); | |
| 1370 | |
| 1371 if (c4 != EOF) | |
| 1372 { | |
| 1373 is.putback (c4); | |
| 1374 | |
| 1375 if (isspace (c4) || ispunct (c4)) | |
| 1376 ref = octave_Inf; | |
| 1377 else | |
| 1378 { | |
| 1379 is.putback (c3); | |
| 1380 is.putback (c2); | |
| 1381 is.putback (c1); | |
| 1382 | |
| 1383 is >> ref; | |
| 1384 } | |
| 1385 } | |
| 1386 else | |
| 1387 { | |
| 1388 is.clear (); | |
| 1389 | |
| 5176 | 1390 ref = octave_Inf; |
| 6483 | 1391 } |
| 1392 } | |
| 1393 else | |
| 1394 { | |
| 1395 is.putback (c3); | |
| 1396 is.putback (c2); | |
| 1397 is.putback (c1); | |
| 1398 | |
| 1399 is >> ref; | |
| 1400 } | |
| 1401 } | |
| 1402 else | |
| 1403 { | |
| 1404 is.putback (c2); | |
| 1405 is.putback (c1); | |
| 1406 | |
| 1407 is >> ref; | |
| 1408 } | |
| 5176 | 1409 } |
| 1410 } | |
| 1411 } | |
| 1412 else | |
| 1413 { | |
| 1414 is.putback (c1); | |
| 1415 | |
| 1416 is >> ref; | |
| 1417 } | |
| 1418 } | |
| 1419 } | |
| 1420 break; | |
| 1421 | |
| 1422 default: | |
| 1423 panic_impossible (); | |
| 1424 break; | |
| 1425 } | |
| 1426 | |
| 1427 return is; | |
| 1428 } | |
| 1429 | |
| 2572 | 1430 template <class T> |
| 1431 void | |
| 3636 | 1432 do_scanf_conv (std::istream& is, const scanf_format_elt& fmt, |
| 5275 | 1433 T valptr, Matrix& mval, double *data, octave_idx_type& idx, |
| 1434 octave_idx_type& conversion_count, octave_idx_type nr, octave_idx_type max_size, | |
| 3636 | 1435 bool discard) |
| 2572 | 1436 { |
| 3640 | 1437 OCTAVE_SCAN (is, fmt, valptr); |
| 2572 | 1438 |
| 1439 if (is) | |
| 1440 { | |
| 1441 if (idx == max_size && ! discard) | |
| 1442 { | |
| 1443 max_size *= 2; | |
| 1444 | |
| 1445 if (nr > 0) | |
| 1446 mval.resize (nr, max_size / nr, 0.0); | |
| 1447 else | |
| 1448 mval.resize (max_size, 1, 0.0); | |
| 1449 | |
| 1450 data = mval.fortran_vec (); | |
| 1451 } | |
| 1452 | |
| 1453 if (! discard) | |
| 3268 | 1454 { |
| 3559 | 1455 conversion_count++; |
| 3268 | 1456 data[idx++] = *(valptr); |
| 1457 } | |
| 2572 | 1458 } |
| 1459 } | |
| 1460 | |
| 1461 template void | |
| 3878 | 1462 do_scanf_conv (std::istream&, const scanf_format_elt&, int*, |
| 5275 | 1463 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 2572 | 1464 |
| 3233 | 1465 template void |
| 3636 | 1466 do_scanf_conv (std::istream&, const scanf_format_elt&, long int*, |
| 5275 | 1467 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3233 | 1468 |
| 1469 template void | |
| 3636 | 1470 do_scanf_conv (std::istream&, const scanf_format_elt&, short int*, |
| 5275 | 1471 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3233 | 1472 |
| 3878 | 1473 template void |
| 1474 do_scanf_conv (std::istream&, const scanf_format_elt&, unsigned int*, | |
| 5275 | 1475 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3878 | 1476 |
| 1477 template void | |
| 1478 do_scanf_conv (std::istream&, const scanf_format_elt&, unsigned long int*, | |
| 5275 | 1479 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3878 | 1480 |
| 1481 template void | |
| 1482 do_scanf_conv (std::istream&, const scanf_format_elt&, unsigned short int*, | |
| 5275 | 1483 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3878 | 1484 |
| 2600 | 1485 #if 0 |
| 2572 | 1486 template void |
| 3636 | 1487 do_scanf_conv (std::istream&, const scanf_format_elt&, float*, |
| 5275 | 1488 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 2600 | 1489 #endif |
| 2572 | 1490 |
| 1491 template void | |
| 3636 | 1492 do_scanf_conv (std::istream&, const scanf_format_elt&, double*, |
| 5275 | 1493 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 2572 | 1494 |
| 3483 | 1495 #define DO_WHITESPACE_CONVERSION() \ |
| 1496 do \ | |
| 1497 { \ | |
| 1498 int c = EOF; \ | |
| 1499 \ | |
| 1500 while (is && (c = is.get ()) != EOF && isspace (c)) \ | |
| 1501 /* skip whitespace */; \ | |
| 1502 \ | |
| 1503 if (c != EOF) \ | |
| 1504 is.putback (c); \ | |
| 1505 } \ | |
| 1506 while (0) | |
| 1507 | |
| 1508 #define DO_LITERAL_CONVERSION() \ | |
| 1509 do \ | |
| 1510 { \ | |
| 1511 int c = EOF; \ | |
| 1512 \ | |
| 1513 int n = strlen (fmt); \ | |
| 1514 int i = 0; \ | |
| 1515 \ | |
| 1516 while (i < n && is && (c = is.get ()) != EOF) \ | |
| 1517 { \ | |
| 5326 | 1518 if (c == static_cast<unsigned char> (fmt[i])) \ |
| 3483 | 1519 { \ |
| 1520 i++; \ | |
| 1521 continue; \ | |
| 1522 } \ | |
| 1523 else \ | |
| 1524 { \ | |
| 1525 is.putback (c); \ | |
| 1526 break; \ | |
| 1527 } \ | |
| 1528 } \ | |
| 1529 \ | |
| 1530 if (i != n) \ | |
| 3538 | 1531 is.setstate (std::ios::failbit); \ |
| 3483 | 1532 } \ |
| 1533 while (0) | |
| 1534 | |
| 3640 | 1535 #define DO_PCT_CONVERSION() \ |
| 1536 do \ | |
| 1537 { \ | |
| 1538 int c = is.get (); \ | |
| 1539 \ | |
| 1540 if (c != EOF) \ | |
| 1541 { \ | |
| 1542 if (c != '%') \ | |
| 1543 { \ | |
| 1544 is.putback (c); \ | |
| 1545 is.setstate (std::ios::failbit); \ | |
| 1546 } \ | |
| 1547 } \ | |
| 1548 else \ | |
| 1549 is.setstate (std::ios::failbit); \ | |
| 1550 } \ | |
| 1551 while (0) | |
| 1552 | |
| 3483 | 1553 #define BEGIN_C_CONVERSION() \ |
| 3538 | 1554 is.unsetf (std::ios::skipws); \ |
| 3483 | 1555 \ |
| 1556 int width = elt->width ? elt->width : 1; \ | |
| 1557 \ | |
| 4051 | 1558 char *tbuf = new char[width + 1]; \ |
| 3483 | 1559 \ |
| 1560 int c = EOF; \ | |
| 1561 int n = 0; \ | |
| 1562 \ | |
| 1563 while (is && n < width && (c = is.get ()) != EOF) \ | |
| 5760 | 1564 tbuf[n++] = static_cast<char> (c); \ |
| 4051 | 1565 \ |
| 1566 tbuf[n] = '\0'; \ | |
| 3483 | 1567 \ |
| 5266 | 1568 if (n > 0 && c == EOF) \ |
| 1569 is.clear (); \ | |
| 1570 \ | |
| 4051 | 1571 std::string tmp = tbuf; \ |
| 1572 \ | |
| 1573 delete [] tbuf | |
| 3483 | 1574 |
| 1575 // For a `%s' format, skip initial whitespace and then read until the | |
| 5338 | 1576 // next whitespace character or until WIDTH characters have been read. |
| 3483 | 1577 #define BEGIN_S_CONVERSION() \ |
| 1578 int width = elt->width; \ | |
| 1579 \ | |
| 4051 | 1580 std::string tmp; \ |
| 3483 | 1581 \ |
| 1582 do \ | |
| 1583 { \ | |
| 1584 if (width) \ | |
| 5338 | 1585 { \ |
| 1586 char *tbuf = new char [width+1]; \ | |
| 1587 \ | |
| 1588 int c = EOF; \ | |
| 1589 \ | |
| 1590 int n = 0; \ | |
| 1591 \ | |
| 1592 while (is && (c = is.get ()) != EOF) \ | |
| 1593 { \ | |
| 1594 if (! isspace (c)) \ | |
| 1595 { \ | |
| 1596 tbuf[n++] = static_cast<char> (c); \ | |
| 1597 break; \ | |
| 1598 } \ | |
| 1599 } \ | |
| 4051 | 1600 \ |
| 5338 | 1601 while (is && n < width && (c = is.get ()) != EOF) \ |
| 1602 { \ | |
| 1603 if (isspace (c)) \ | |
| 1604 { \ | |
| 1605 is.putback (c); \ | |
| 1606 break; \ | |
| 1607 } \ | |
| 1608 else \ | |
| 1609 tbuf[n++] = static_cast<char> (c); \ | |
| 1610 } \ | |
| 3483 | 1611 \ |
| 5338 | 1612 tbuf[n] = '\0'; \ |
| 1613 \ | |
| 1614 if (n > 0 && c == EOF) \ | |
| 1615 is.clear (); \ | |
| 1616 \ | |
| 4051 | 1617 tmp = tbuf; \ |
| 5338 | 1618 \ |
| 4051 | 1619 delete [] tbuf; \ |
| 5338 | 1620 } \ |
| 3483 | 1621 else \ |
| 5338 | 1622 { \ |
| 1623 is >> std::ws >> tmp; \ | |
| 1624 } \ | |
| 3483 | 1625 } \ |
| 1626 while (0) | |
| 1627 | |
| 1628 // This format must match a nonempty sequence of characters. | |
| 1629 #define BEGIN_CHAR_CLASS_CONVERSION() \ | |
| 1630 int width = elt->width; \ | |
| 1631 \ | |
| 4051 | 1632 std::string tmp; \ |
| 3483 | 1633 \ |
| 1634 do \ | |
| 1635 { \ | |
| 7426 | 1636 if (! width) \ |
| 7427 | 1637 width = INT_MAX; \ |
| 1638 \ | |
| 7426 | 1639 std::ostringstream buf; \ |
| 1640 \ | |
| 1641 std::string char_class = elt->char_class; \ | |
| 4051 | 1642 \ |
| 7426 | 1643 int c = EOF; \ |
| 3483 | 1644 \ |
| 7426 | 1645 if (elt->type == '[') \ |
| 1646 { \ | |
| 1647 int chars_read = 0; \ | |
| 1648 while (is && chars_read++ < width && (c = is.get ()) != EOF \ | |
| 8021 | 1649 && char_class.find (c) != std::string::npos) \ |
| 7426 | 1650 buf << static_cast<char> (c); \ |
| 3483 | 1651 } \ |
| 1652 else \ | |
| 1653 { \ | |
| 7426 | 1654 int chars_read = 0; \ |
| 1655 while (is && chars_read++ < width && (c = is.get ()) != EOF \ | |
| 8021 | 1656 && char_class.find (c) == std::string::npos) \ |
| 7426 | 1657 buf << static_cast<char> (c); \ |
| 1658 } \ | |
| 3483 | 1659 \ |
| 7426 | 1660 if (width == INT_MAX && c != EOF) \ |
| 1661 is.putback (c); \ | |
| 3483 | 1662 \ |
| 7426 | 1663 tmp = buf.str (); \ |
| 3483 | 1664 \ |
| 7426 | 1665 if (tmp.empty ()) \ |
| 1666 is.setstate (std::ios::failbit); \ | |
| 3483 | 1667 } \ |
| 1668 while (0) | |
| 1669 | |
| 3410 | 1670 #define FINISH_CHARACTER_CONVERSION() \ |
| 1671 do \ | |
| 1672 { \ | |
| 4051 | 1673 width = tmp.length (); \ |
| 3410 | 1674 \ |
| 1675 if (is) \ | |
| 1676 { \ | |
| 1677 int i = 0; \ | |
| 1678 \ | |
| 1679 if (! discard) \ | |
| 1680 { \ | |
| 1681 conversion_count++; \ | |
| 1682 \ | |
| 1683 while (i < width && tmp[i] != '\0') \ | |
| 1684 { \ | |
| 1685 if (data_index == max_size) \ | |
| 1686 { \ | |
| 1687 max_size *= 2; \ | |
| 1688 \ | |
| 4420 | 1689 if (all_char_conv) \ |
| 3410 | 1690 { \ |
| 4420 | 1691 if (one_elt_size_spec) \ |
| 3410 | 1692 mval.resize (1, max_size, 0.0); \ |
| 4420 | 1693 else if (nr > 0) \ |
| 1694 mval.resize (nr, max_size / nr, 0.0); \ | |
| 3410 | 1695 else \ |
| 4420 | 1696 panic_impossible (); \ |
| 3410 | 1697 } \ |
| 4420 | 1698 else if (nr > 0) \ |
| 6970 | 1699 mval.resize (nr, max_size / nr, 0.0); \ |
| 4420 | 1700 else \ |
| 1701 mval.resize (max_size, 1, 0.0); \ | |
| 3410 | 1702 \ |
| 1703 data = mval.fortran_vec (); \ | |
| 1704 } \ | |
| 1705 \ | |
| 1706 data[data_index++] = tmp[i++]; \ | |
| 1707 } \ | |
| 1708 } \ | |
| 1709 } \ | |
| 1710 } \ | |
| 1711 while (0) | |
| 2117 | 1712 |
| 1713 octave_value | |
| 1714 octave_base_stream::do_scanf (scanf_format_list& fmt_list, | |
| 5275 | 1715 octave_idx_type nr, octave_idx_type nc, bool one_elt_size_spec, |
| 1716 octave_idx_type& conversion_count, const std::string& who) | |
| 2117 | 1717 { |
|
8773
9e3111d203c0
disallow reading from stdin while running interactively
John W. Eaton <jwe@octave.org>
parents:
8739
diff
changeset
|
1718 octave_value retval = Matrix (); |
|
9e3111d203c0
disallow reading from stdin while running interactively
John W. Eaton <jwe@octave.org>
parents:
8739
diff
changeset
|
1719 |
|
9e3111d203c0
disallow reading from stdin while running interactively
John W. Eaton <jwe@octave.org>
parents:
8739
diff
changeset
|
1720 if ((interactive || forced_interactive) && file_number () == 0) |
|
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parents:
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changeset
|
1721 { |
|
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parents:
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diff
changeset
|
1722 ::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
|
1723 who.c_str ()); |
|
9e3111d203c0
disallow reading from stdin while running interactively
John W. Eaton <jwe@octave.org>
parents:
8739
diff
changeset
|
1724 |
|
9e3111d203c0
disallow reading from stdin while running interactively
John W. Eaton <jwe@octave.org>
parents:
8739
diff
changeset
|
1725 return retval; |
|
9e3111d203c0
disallow reading from stdin while running interactively
John W. Eaton <jwe@octave.org>
parents:
8739
diff
changeset
|
1726 } |
|
9e3111d203c0
disallow reading from stdin while running interactively
John W. Eaton <jwe@octave.org>
parents:
8739
diff
changeset
|
1727 |
| 3268 | 1728 conversion_count = 0; |
| 1729 | |
| 3640 | 1730 int nconv = fmt_list.num_conversions (); |
| 1731 | |
| 5275 | 1732 octave_idx_type data_index = 0; |
| 2121 | 1733 |
| 3268 | 1734 if (nr == 0 || nc == 0) |
| 1735 { | |
| 1736 if (one_elt_size_spec) | |
| 1737 nc = 0; | |
| 1738 | |
| 1739 return Matrix (nr, nc, 0.0); | |
| 1740 } | |
| 1741 | |
| 3523 | 1742 std::istream *isp = input_stream (); |
| 2117 | 1743 |
| 1744 bool all_char_conv = fmt_list.all_character_conversions (); | |
| 1745 | |
| 1746 Matrix mval; | |
| 1747 double *data = 0; | |
| 5275 | 1748 octave_idx_type max_size = 0; |
| 1749 octave_idx_type max_conv = 0; | |
| 1750 | |
| 1751 octave_idx_type final_nr = 0; | |
| 1752 octave_idx_type final_nc = 0; | |
| 2117 | 1753 |
| 3268 | 1754 if (all_char_conv) |
| 1755 { | |
| 4420 | 1756 // Any of these could be resized later (if we have %s |
| 1757 // conversions, we may read more than one element for each | |
| 1758 // conversion). | |
| 1759 | |
| 3268 | 1760 if (one_elt_size_spec) |
| 1761 { | |
| 3410 | 1762 max_size = 512; |
| 1763 mval.resize (1, max_size, 0.0); | |
| 1764 | |
| 3268 | 1765 if (nr > 0) |
| 1766 max_conv = nr; | |
| 1767 } | |
| 4420 | 1768 else if (nr > 0) |
| 3268 | 1769 { |
| 4420 | 1770 if (nc > 0) |
| 1771 { | |
| 1772 mval.resize (nr, nc, 0.0); | |
| 1773 max_size = max_conv = nr * nc; | |
| 1774 } | |
| 1775 else | |
| 1776 { | |
| 1777 mval.resize (nr, 32, 0.0); | |
| 1778 max_size = nr * 32; | |
| 1779 } | |
| 3268 | 1780 } |
| 4420 | 1781 else |
| 1782 panic_impossible (); | |
| 3268 | 1783 } |
| 1784 else if (nr > 0) | |
| 2117 | 1785 { |
| 1786 if (nc > 0) | |
| 1787 { | |
| 4420 | 1788 // Will not resize later. |
| 2117 | 1789 mval.resize (nr, nc, 0.0); |
| 1790 max_size = nr * nc; | |
| 3268 | 1791 max_conv = max_size; |
| 2117 | 1792 } |
| 1793 else | |
| 1794 { | |
| 4420 | 1795 // Maybe resize later. |
| 2117 | 1796 mval.resize (nr, 32, 0.0); |
| 2121 | 1797 max_size = nr * 32; |
| 2117 | 1798 } |
| 1799 } | |
| 1800 else | |
| 1801 { | |
| 4420 | 1802 // Maybe resize later. |
| 2117 | 1803 mval.resize (32, 1, 0.0); |
| 1804 max_size = 32; | |
| 1805 } | |
| 1806 | |
| 4420 | 1807 data = mval.fortran_vec (); |
| 1808 | |
| 2117 | 1809 if (isp) |
| 1810 { | |
| 3523 | 1811 std::istream& is = *isp; |
| 2117 | 1812 |
| 1813 const scanf_format_elt *elt = fmt_list.first (); | |
| 1814 | |
| 3538 | 1815 std::ios::fmtflags flags = is.flags (); |
| 2213 | 1816 |
| 2117 | 1817 for (;;) |
| 1818 { | |
| 4153 | 1819 OCTAVE_QUIT; |
| 1820 | |
| 2117 | 1821 if (elt) |
| 1822 { | |
| 3268 | 1823 if (max_conv > 0 && conversion_count == max_conv) |
| 1824 { | |
| 1825 if (all_char_conv && one_elt_size_spec) | |
| 1826 { | |
| 1827 final_nr = 1; | |
| 1828 final_nc = data_index; | |
| 1829 } | |
| 1830 else | |
| 1831 { | |
| 1832 final_nr = nr; | |
| 1833 final_nc = (data_index - 1) / nr + 1; | |
| 1834 } | |
| 1835 | |
| 1836 break; | |
| 1837 } | |
| 1838 else if (data_index == max_size) | |
| 2117 | 1839 { |
| 3410 | 1840 max_size *= 2; |
| 1841 | |
| 4420 | 1842 if (all_char_conv) |
| 2687 | 1843 { |
| 4420 | 1844 if (one_elt_size_spec) |
| 3410 | 1845 mval.resize (1, max_size, 0.0); |
| 4420 | 1846 else if (nr > 0) |
| 1847 mval.resize (nr, max_size / nr, 0.0); | |
| 3410 | 1848 else |
| 4420 | 1849 panic_impossible (); |
| 2687 | 1850 } |
| 4420 | 1851 else if (nr > 0) |
| 6970 | 1852 mval.resize (nr, max_size / nr, 0.0); |
| 4420 | 1853 else |
| 1854 mval.resize (max_size, 1, 0.0); | |
| 3410 | 1855 |
| 1856 data = mval.fortran_vec (); | |
| 2117 | 1857 } |
| 1858 | |
| 1859 const char *fmt = elt->text; | |
| 1860 | |
| 1861 bool discard = elt->discard; | |
| 1862 | |
| 1863 switch (elt->type) | |
| 1864 { | |
| 3483 | 1865 case scanf_format_elt::whitespace_conversion: |
| 1866 DO_WHITESPACE_CONVERSION (); | |
| 1867 break; | |
| 1868 | |
| 1869 case scanf_format_elt::literal_conversion: | |
| 1870 DO_LITERAL_CONVERSION (); | |
| 1871 break; | |
| 1872 | |
| 2117 | 1873 case '%': |
| 3640 | 1874 DO_PCT_CONVERSION (); |
| 3483 | 1875 break; |
| 2117 | 1876 |
| 3878 | 1877 case 'd': case 'i': |
| 2117 | 1878 { |
| 3233 | 1879 switch (elt->modifier) |
| 1880 { | |
| 1881 case 'h': | |
| 1882 { | |
| 1883 short int tmp; | |
| 3779 | 1884 do_scanf_conv (is, *elt, &tmp, mval, data, |
| 3268 | 1885 data_index, conversion_count, |
| 3233 | 1886 nr, max_size, discard); |
| 1887 } | |
| 3483 | 1888 break; |
| 3233 | 1889 |
| 1890 case 'l': | |
| 1891 { | |
| 1892 long int tmp; | |
| 3779 | 1893 do_scanf_conv (is, *elt, &tmp, mval, data, |
| 3268 | 1894 data_index, conversion_count, |
| 3233 | 1895 nr, max_size, discard); |
| 1896 } | |
| 3483 | 1897 break; |
| 3233 | 1898 |
| 1899 default: | |
| 1900 { | |
| 1901 int tmp; | |
| 3779 | 1902 do_scanf_conv (is, *elt, &tmp, mval, data, |
| 3268 | 1903 data_index, conversion_count, |
| 3233 | 1904 nr, max_size, discard); |
| 1905 } | |
| 3483 | 1906 break; |
| 3233 | 1907 } |
| 2117 | 1908 } |
| 3483 | 1909 break; |
| 2117 | 1910 |
| 3878 | 1911 case 'o': case 'u': case 'x': |
| 1912 { | |
| 1913 switch (elt->modifier) | |
| 1914 { | |
| 1915 case 'h': | |
| 1916 { | |
| 1917 unsigned short int tmp; | |
| 1918 do_scanf_conv (is, *elt, &tmp, mval, data, | |
| 1919 data_index, conversion_count, | |
| 1920 nr, max_size, discard); | |
| 1921 } | |
| 1922 break; | |
| 1923 | |
| 1924 case 'l': | |
| 1925 { | |
| 1926 unsigned long int tmp; | |
| 1927 do_scanf_conv (is, *elt, &tmp, mval, data, | |
| 1928 data_index, conversion_count, | |
| 1929 nr, max_size, discard); | |
| 1930 } | |
| 1931 break; | |
| 1932 | |
| 1933 default: | |
| 1934 { | |
| 1935 unsigned int tmp; | |
| 1936 do_scanf_conv (is, *elt, &tmp, mval, data, | |
| 1937 data_index, conversion_count, | |
| 1938 nr, max_size, discard); | |
| 1939 } | |
| 1940 break; | |
| 1941 } | |
| 1942 } | |
| 1943 break; | |
| 1944 | |
| 2117 | 1945 case 'e': case 'f': case 'g': |
| 1946 { | |
| 2600 | 1947 double tmp; |
| 1948 | |
| 3779 | 1949 do_scanf_conv (is, *elt, &tmp, mval, data, |
| 3268 | 1950 data_index, conversion_count, |
| 2600 | 1951 nr, max_size, discard); |
| 2117 | 1952 } |
| 3483 | 1953 break; |
| 2117 | 1954 |
| 2213 | 1955 case 'c': |
| 3410 | 1956 { |
| 3483 | 1957 BEGIN_C_CONVERSION (); |
| 3410 | 1958 |
| 1959 FINISH_CHARACTER_CONVERSION (); | |
| 3483 | 1960 |
| 1961 is.setf (flags); | |
| 3410 | 1962 } |
| 1963 break; | |
| 2213 | 1964 |
| 2117 | 1965 case 's': |
| 1966 { | |
| 3483 | 1967 BEGIN_S_CONVERSION (); |
| 3268 | 1968 |
| 3410 | 1969 FINISH_CHARACTER_CONVERSION (); |
| 2117 | 1970 } |
| 3483 | 1971 break; |
| 1972 | |
| 1973 case '[': case '^': | |
| 1974 { | |
| 1975 BEGIN_CHAR_CLASS_CONVERSION (); | |
| 1976 | |
| 1977 FINISH_CHARACTER_CONVERSION (); | |
| 1978 } | |
| 1979 break; | |
| 1980 | |
| 1981 case 'p': | |
| 4468 | 1982 error ("%s: unsupported format specifier", who.c_str ()); |
| 2117 | 1983 break; |
| 1984 | |
| 1985 default: | |
| 4468 | 1986 error ("%s: internal format error", who.c_str ()); |
| 2117 | 1987 break; |
| 1988 } | |
| 1989 | |
| 1990 if (! ok ()) | |
| 1991 { | |
| 1992 break; | |
| 1993 } | |
| 1994 else if (! is) | |
| 1995 { | |
| 3268 | 1996 if (all_char_conv) |
| 2117 | 1997 { |
| 3268 | 1998 if (one_elt_size_spec) |
| 1999 { | |
| 2000 final_nr = 1; | |
| 2001 final_nc = data_index; | |
| 2002 } | |
| 2003 else if (data_index > nr) | |
| 2117 | 2004 { |
| 2759 | 2005 final_nr = nr; |
| 3268 | 2006 final_nc = (data_index - 1) / nr + 1; |
| 2117 | 2007 } |
| 2008 else | |
| 2009 { | |
| 3268 | 2010 final_nr = data_index; |
| 2011 final_nc = 1; | |
| 2012 } | |
| 2013 } | |
| 2014 else if (nr > 0) | |
| 2015 { | |
| 2016 if (data_index > nr) | |
| 2017 { | |
| 2018 final_nr = nr; | |
| 2019 final_nc = (data_index - 1) / nr + 1; | |
| 2020 } | |
| 2021 else | |
| 2022 { | |
| 2023 final_nr = data_index; | |
| 2117 | 2024 final_nc = 1; |
| 2025 } | |
| 2026 } | |
| 2027 else | |
| 2028 { | |
| 3268 | 2029 final_nr = data_index; |
| 2759 | 2030 final_nc = 1; |
| 2031 } | |
| 2032 | |
| 3337 | 2033 // If it looks like we have a matching failure, then |
| 2034 // reset the failbit in the stream state. | |
| 2035 | |
| 3538 | 2036 if (is.rdstate () & std::ios::failbit) |
| 2037 is.clear (is.rdstate () & (~std::ios::failbit)); | |
| 3337 | 2038 |
| 5775 | 2039 // FIXME -- is this the right thing to do? |
| 3342 | 2040 |
| 2041 if (interactive && name () == "stdin") | |
| 2759 | 2042 { |
| 2043 is.clear (); | |
| 2044 | |
| 2045 // Skip to end of line. | |
| 2046 | |
| 2047 bool err; | |
| 4468 | 2048 do_gets (-1, err, false, who); |
| 2117 | 2049 } |
| 2050 | |
| 2051 break; | |
| 2052 } | |
| 2053 } | |
| 2054 else | |
| 2055 { | |
| 4468 | 2056 error ("%s: internal format error", who.c_str ()); |
| 2117 | 2057 break; |
| 2058 } | |
| 2059 | |
| 3640 | 2060 elt = fmt_list.next (nconv > 0); |
| 2117 | 2061 } |
| 2062 } | |
| 2063 | |
| 2064 if (ok ()) | |
| 2065 { | |
| 2121 | 2066 mval.resize (final_nr, final_nc, 0.0); |
| 2117 | 2067 |
| 3268 | 2068 retval = mval; |
| 2069 | |
| 2117 | 2070 if (all_char_conv) |
| 5279 | 2071 retval = retval.convert_to_str (false, true); |
| 2117 | 2072 } |
| 2073 | |
| 2074 return retval; | |
| 2075 } | |
| 2076 | |
| 2077 octave_value | |
| 3810 | 2078 octave_base_stream::scanf (const std::string& fmt, const Array<double>& size, |
| 5275 | 2079 octave_idx_type& conversion_count, const std::string& who) |
| 2117 | 2080 { |
| 2081 octave_value retval = Matrix (); | |
| 2082 | |
| 3559 | 2083 conversion_count = 0; |
| 2117 | 2084 |
| 3523 | 2085 std::istream *isp = input_stream (); |
| 2117 | 2086 |
| 2087 if (isp) | |
| 2088 { | |
| 2089 scanf_format_list fmt_list (fmt); | |
| 2090 | |
| 3640 | 2091 if (fmt_list.num_conversions () == -1) |
| 4468 | 2092 ::error ("%s: invalid format specified", who.c_str ()); |
| 3640 | 2093 else |
| 2117 | 2094 { |
| 5275 | 2095 octave_idx_type nr = -1; |
| 2096 octave_idx_type nc = -1; | |
| 3640 | 2097 |
| 2098 bool one_elt_size_spec; | |
| 2099 | |
| 4468 | 2100 get_size (size, nr, nc, one_elt_size_spec, who); |
| 3640 | 2101 |
| 2102 if (! error_state) | |
| 2103 retval = do_scanf (fmt_list, nr, nc, one_elt_size_spec, | |
| 4468 | 2104 conversion_count, who); |
| 2215 | 2105 } |
| 2106 } | |
| 2107 else | |
| 4468 | 2108 invalid_operation (who, "reading"); |
| 2572 | 2109 |
| 2110 return retval; | |
| 2111 } | |
| 2112 | |
| 2712 | 2113 bool |
| 2114 octave_base_stream::do_oscanf (const scanf_format_elt *elt, | |
| 4468 | 2115 octave_value& retval, const std::string& who) |
| 2572 | 2116 { |
| 2712 | 2117 bool quit = false; |
| 2215 | 2118 |
| 3523 | 2119 std::istream *isp = input_stream (); |
| 2215 | 2120 |
| 2121 if (isp) | |
| 2122 { | |
| 3523 | 2123 std::istream& is = *isp; |
| 2215 | 2124 |
| 3538 | 2125 std::ios::fmtflags flags = is.flags (); |
| 2215 | 2126 |
| 2127 if (elt) | |
| 2128 { | |
| 2129 const char *fmt = elt->text; | |
| 2130 | |
| 2131 bool discard = elt->discard; | |
| 2132 | |
| 2133 switch (elt->type) | |
| 2134 { | |
| 3483 | 2135 case scanf_format_elt::whitespace_conversion: |
| 2136 DO_WHITESPACE_CONVERSION (); | |
| 2137 break; | |
| 2138 | |
| 2139 case scanf_format_elt::literal_conversion: | |
| 2140 DO_LITERAL_CONVERSION (); | |
| 2141 break; | |
| 2142 | |
| 2215 | 2143 case '%': |
| 2144 { | |
| 3640 | 2145 DO_PCT_CONVERSION (); |
| 2146 | |
| 2147 if (! is) | |
| 2712 | 2148 quit = true; |
| 3640 | 2149 |
| 2215 | 2150 } |
| 2151 break; | |
| 2152 | |
| 3878 | 2153 case 'd': case 'i': |
| 2215 | 2154 { |
| 2155 int tmp; | |
| 2156 | |
| 3640 | 2157 if (OCTAVE_SCAN (is, *elt, &tmp)) |
| 2712 | 2158 { |
| 2159 if (! discard) | |
| 4233 | 2160 retval = tmp; |
| 2712 | 2161 } |
| 2162 else | |
| 2163 quit = true; | |
| 2215 | 2164 } |
| 2165 break; | |
| 2166 | |
| 3878 | 2167 case 'o': case 'u': case 'x': |
| 2168 { | |
| 2169 long int tmp; | |
| 2170 | |
| 2171 if (OCTAVE_SCAN (is, *elt, &tmp)) | |
| 2172 { | |
| 2173 if (! discard) | |
| 4254 | 2174 retval = tmp; |
| 3878 | 2175 } |
| 2176 else | |
| 2177 quit = true; | |
| 2178 } | |
| 2179 break; | |
| 2180 | |
| 2215 | 2181 case 'e': case 'f': case 'g': |
| 2182 { | |
| 2600 | 2183 double tmp; |
| 2184 | |
| 3640 | 2185 if (OCTAVE_SCAN (is, *elt, &tmp)) |
| 2712 | 2186 { |
| 2187 if (! discard) | |
| 2188 retval = tmp; | |
| 2189 } | |
| 2190 else | |
| 2191 quit = true; | |
| 2215 | 2192 } |
| 2193 break; | |
| 2194 | |
| 2195 case 'c': | |
| 2196 { | |
| 3483 | 2197 BEGIN_C_CONVERSION (); |
| 2198 | |
| 2199 if (! discard) | |
| 2200 retval = tmp; | |
| 2201 | |
| 2202 if (! is) | |
| 2712 | 2203 quit = true; |
| 2215 | 2204 |
| 2205 is.setf (flags); | |
| 2206 } | |
| 2207 break; | |
| 2208 | |
| 2209 case 's': | |
| 2210 { | |
| 3483 | 2211 BEGIN_S_CONVERSION (); |
| 2212 | |
| 2213 if (! discard) | |
| 2214 retval = tmp; | |
| 2572 | 2215 |
| 3268 | 2216 if (! is) |
| 2217 quit = true; | |
| 2215 | 2218 } |
| 2219 break; | |
| 2220 | |
| 3483 | 2221 case '[': case '^': |
| 2222 { | |
| 2223 BEGIN_CHAR_CLASS_CONVERSION (); | |
| 2224 | |
| 2225 if (! discard) | |
| 2226 retval = tmp; | |
| 2227 | |
| 2228 if (! is) | |
| 2229 quit = true; | |
| 2230 } | |
| 2231 break; | |
| 2232 | |
| 2233 case 'p': | |
| 4468 | 2234 error ("%s: unsupported format specifier", who.c_str ()); |
| 2215 | 2235 break; |
| 2236 | |
| 2237 default: | |
| 4468 | 2238 error ("%s: internal format error", who.c_str ()); |
| 2215 | 2239 break; |
| 2240 } | |
| 2241 } | |
| 2242 | |
| 2243 if (ok () && is.fail ()) | |
| 2244 { | |
| 4468 | 2245 error ("%s: read error", who.c_str ()); |
| 3483 | 2246 |
| 5775 | 2247 // FIXME -- is this the right thing to do? |
| 3342 | 2248 |
| 2249 if (interactive && name () == "stdin") | |
| 2215 | 2250 { |
| 2251 // Skip to end of line. | |
| 2252 | |
| 2253 bool err; | |
| 4468 | 2254 do_gets (-1, err, false, who); |
| 2215 | 2255 } |
| 2256 } | |
| 2257 } | |
| 2258 | |
| 2712 | 2259 return quit; |
| 2215 | 2260 } |
| 2261 | |
| 2262 octave_value_list | |
| 4468 | 2263 octave_base_stream::oscanf (const std::string& fmt, const std::string& who) |
| 2215 | 2264 { |
| 2265 octave_value_list retval; | |
| 2266 | |
| 3523 | 2267 std::istream *isp = input_stream (); |
| 2215 | 2268 |
| 2269 if (isp) | |
| 2270 { | |
| 3523 | 2271 std::istream& is = *isp; |
| 2215 | 2272 |
| 2273 scanf_format_list fmt_list (fmt); | |
| 2274 | |
| 2275 int nconv = fmt_list.num_conversions (); | |
| 2276 | |
| 3640 | 2277 if (nconv == -1) |
| 4468 | 2278 ::error ("%s: invalid format specified", who.c_str ()); |
| 3640 | 2279 else |
| 2215 | 2280 { |
| 3640 | 2281 is.clear (); |
| 2282 | |
| 2283 int len = fmt_list.length (); | |
| 2284 | |
| 2285 retval.resize (nconv+1, Matrix ()); | |
| 2286 | |
| 2287 const scanf_format_elt *elt = fmt_list.first (); | |
| 2288 | |
| 2289 int num_values = 0; | |
| 2290 | |
| 2291 bool quit = false; | |
| 2292 | |
| 5275 | 2293 for (octave_idx_type i = 0; i < len; i++) |
| 3640 | 2294 { |
| 2295 octave_value tmp; | |
| 2296 | |
| 4468 | 2297 quit = do_oscanf (elt, tmp, who); |
| 3640 | 2298 |
| 2299 if (quit) | |
| 2300 break; | |
| 2301 else | |
| 2302 { | |
| 2303 if (tmp.is_defined ()) | |
| 2304 retval (num_values++) = tmp; | |
| 2305 | |
| 2306 if (! ok ()) | |
| 2307 break; | |
| 2308 | |
| 2309 elt = fmt_list.next (nconv > 0); | |
| 2310 } | |
| 2311 } | |
| 2312 | |
| 4233 | 2313 retval(nconv) = num_values; |
| 3640 | 2314 |
| 2315 if (! quit) | |
| 2316 { | |
| 2317 // Pick up any trailing stuff. | |
| 2318 if (ok () && len > nconv) | |
| 2319 { | |
| 2320 octave_value tmp; | |
| 3704 | 2321 |
| 2322 elt = fmt_list.next (); | |
| 2323 | |
| 4468 | 2324 do_oscanf (elt, tmp, who); |
| 3640 | 2325 } |
| 2326 } | |
| 2117 | 2327 } |
| 2328 } | |
| 2329 else | |
| 4468 | 2330 invalid_operation (who, "reading"); |
| 2117 | 2331 |
| 2332 return retval; | |
| 2333 } | |
| 2334 | |
| 2335 // Functions that are defined for all output streams (output streams | |
| 2336 // are those that define os). | |
| 2337 | |
| 2338 int | |
| 2339 octave_base_stream::flush (void) | |
| 2340 { | |
| 2341 int retval = -1; | |
| 2342 | |
| 3523 | 2343 std::ostream *os = output_stream (); |
| 2117 | 2344 |
| 2345 if (os) | |
| 2346 { | |
| 2347 os->flush (); | |
| 2348 | |
| 2349 if (os->good ()) | |
| 2350 retval = 0; | |
| 2351 } | |
| 2352 else | |
| 2353 invalid_operation ("fflush", "writing"); | |
| 2354 | |
| 2355 return retval; | |
| 2356 } | |
| 2357 | |
| 2358 class | |
| 2359 printf_value_cache | |
| 2360 { | |
| 2361 public: | |
| 2362 | |
| 3653 | 2363 enum state { ok, conversion_error }; |
| 2117 | 2364 |
| 7352 | 2365 printf_value_cache (const octave_value_list& args, const std::string& who) |
| 2117 | 2366 : values (args), val_idx (0), elt_idx (0), |
| 2367 n_vals (values.length ()), n_elts (0), data (0), | |
| 7352 | 2368 curr_state (ok) |
| 2369 { | |
| 2370 for (octave_idx_type i = 0; i < values.length (); i++) | |
| 2371 { | |
| 2372 octave_value val = values(i); | |
| 2373 | |
| 2374 if (val.is_map () || val.is_cell () || val.is_object () | |
| 2375 || val.is_list ()) | |
| 2376 { | |
| 2377 gripe_wrong_type_arg (who, val); | |
| 2378 break; | |
| 2379 } | |
| 2380 } | |
| 2381 } | |
| 2117 | 2382 |
| 2383 ~printf_value_cache (void) { } | |
| 2384 | |
| 2385 // Get the current value as a double and advance the internal pointer. | |
| 2386 double double_value (void); | |
| 2387 | |
| 2388 // Get the current value as an int and advance the internal pointer. | |
| 2389 int int_value (void); | |
| 2390 | |
| 2391 // Get the current value as a string and advance the internal pointer. | |
| 3523 | 2392 std::string string_value (void); |
| 2117 | 2393 |
| 3145 | 2394 operator bool () const { return (curr_state == ok); } |
| 2117 | 2395 |
| 3653 | 2396 bool exhausted (void) { return (val_idx >= n_vals); } |
| 2117 | 2397 |
| 2398 private: | |
| 2399 | |
| 2400 const octave_value_list values; | |
| 2401 int val_idx; | |
| 2402 int elt_idx; | |
| 2403 int n_vals; | |
| 2404 int n_elts; | |
| 2405 const double *data; | |
| 4874 | 2406 NDArray curr_val; |
| 2117 | 2407 state curr_state; |
| 2408 | |
| 2409 // Must create value cache with values! | |
| 2410 | |
| 2411 printf_value_cache (void); | |
| 2412 | |
| 2413 // No copying! | |
| 2414 | |
| 2415 printf_value_cache (const printf_value_cache&); | |
| 2416 | |
| 2417 printf_value_cache& operator = (const printf_value_cache&); | |
| 2418 }; | |
| 2419 | |
| 2420 double | |
| 2421 printf_value_cache::double_value (void) | |
| 2422 { | |
| 2423 double retval = 0.0; | |
| 2424 | |
| 3711 | 2425 if (exhausted ()) |
| 2426 curr_state = conversion_error; | |
| 2427 | |
| 2428 while (! exhausted ()) | |
| 2117 | 2429 { |
| 2430 if (! data) | |
| 2431 { | |
| 2432 octave_value tmp_val = values (val_idx); | |
| 2433 | |
| 5476 | 2434 // Force string conversion here for compatibility. |
| 2435 | |
| 2436 curr_val = tmp_val.array_value (true); | |
| 2117 | 2437 |
| 2438 if (! error_state) | |
| 2439 { | |
| 2440 elt_idx = 0; | |
| 2441 n_elts = curr_val.length (); | |
| 2442 data = curr_val.data (); | |
| 2443 } | |
| 2444 else | |
| 2445 { | |
| 2446 curr_state = conversion_error; | |
| 2447 break; | |
| 2448 } | |
| 2449 } | |
| 2450 | |
| 2451 if (elt_idx < n_elts) | |
| 2452 { | |
| 3653 | 2453 retval = data[elt_idx++]; |
| 2454 | |
| 2455 if (elt_idx >= n_elts) | |
| 2456 { | |
| 2457 elt_idx = 0; | |
| 2458 val_idx++; | |
| 2459 data = 0; | |
| 2460 } | |
| 2461 | |
| 2117 | 2462 break; |
| 2463 } | |
| 2464 else | |
| 2465 { | |
| 2466 val_idx++; | |
| 2467 data = 0; | |
| 3969 | 2468 |
| 2469 if (n_elts == 0 && exhausted ()) | |
| 2470 curr_state = conversion_error; | |
| 2471 | |
| 2117 | 2472 continue; |
| 2473 } | |
| 2474 } | |
| 2475 | |
| 2476 return retval; | |
| 2477 } | |
| 2478 | |
| 2479 int | |
| 2480 printf_value_cache::int_value (void) | |
| 2481 { | |
| 2482 int retval = 0; | |
| 2483 | |
| 2484 double dval = double_value (); | |
| 2485 | |
| 2486 if (! error_state) | |
| 2487 { | |
| 2488 if (D_NINT (dval) == dval) | |
| 2489 retval = NINT (dval); | |
| 2490 else | |
| 2491 curr_state = conversion_error; | |
| 2492 } | |
| 2493 | |
| 2494 return retval; | |
| 2495 } | |
| 2496 | |
| 3536 | 2497 std::string |
| 2117 | 2498 printf_value_cache::string_value (void) |
| 2499 { | |
| 3523 | 2500 std::string retval; |
| 2117 | 2501 |
| 4425 | 2502 if (exhausted ()) |
| 2503 curr_state = conversion_error; | |
| 4257 | 2504 else |
| 2117 | 2505 { |
| 4425 | 2506 octave_value tval = values (val_idx++); |
| 2507 | |
| 2508 if (tval.rows () == 1) | |
| 2509 retval = tval.string_value (); | |
| 2510 else | |
| 2511 { | |
| 2512 // In the name of Matlab compatibility. | |
| 2513 | |
| 2514 charMatrix chm = tval.char_matrix_value (); | |
| 2515 | |
| 5275 | 2516 octave_idx_type nr = chm.rows (); |
| 2517 octave_idx_type nc = chm.columns (); | |
| 4425 | 2518 |
| 2519 int k = 0; | |
| 2520 | |
| 2521 retval.resize (nr * nc, '\0'); | |
| 2522 | |
| 5275 | 2523 for (octave_idx_type j = 0; j < nc; j++) |
| 2524 for (octave_idx_type i = 0; i < nr; i++) | |
| 4425 | 2525 retval[k++] = chm(i,j); |
| 2526 } | |
| 2527 | |
| 2528 if (error_state) | |
| 2529 curr_state = conversion_error; | |
| 2117 | 2530 } |
| 4257 | 2531 |
| 2117 | 2532 return retval; |
| 2533 } | |
| 2534 | |
| 2535 // Ugh again and again. | |
| 2536 | |
| 2572 | 2537 template <class T> |
| 3620 | 2538 int |
| 3523 | 2539 do_printf_conv (std::ostream& os, const char *fmt, int nsa, int sa_1, |
| 4468 | 2540 int sa_2, T arg, const std::string& who) |
| 2572 | 2541 { |
| 3620 | 2542 int retval = 0; |
| 2543 | |
| 2572 | 2544 switch (nsa) |
| 2545 { | |
| 2546 case 2: | |
| 3640 | 2547 retval = octave_format (os, fmt, sa_1, sa_2, arg); |
| 2572 | 2548 break; |
| 2549 | |
| 2550 case 1: | |
| 3640 | 2551 retval = octave_format (os, fmt, sa_1, arg); |
| 2572 | 2552 break; |
| 2553 | |
| 2554 case 0: | |
| 3640 | 2555 retval = octave_format (os, fmt, arg); |
| 2572 | 2556 break; |
| 2557 | |
| 2558 default: | |
| 4468 | 2559 ::error ("%s: internal error handling format", who.c_str ()); |
| 2572 | 2560 break; |
| 2561 } | |
| 3620 | 2562 |
| 2563 return retval; | |
| 2572 | 2564 } |
| 2565 | |
| 3620 | 2566 template int |
| 4468 | 2567 do_printf_conv (std::ostream&, const char*, int, int, int, int, |
| 2568 const std::string&); | |
| 2569 | |
| 2570 template int | |
| 2571 do_printf_conv (std::ostream&, const char*, int, int, int, long, | |
| 2572 const std::string&); | |
| 2573 | |
| 3878 | 2574 template int |
| 4468 | 2575 do_printf_conv (std::ostream&, const char*, int, int, int, unsigned int, |
| 2576 const std::string&); | |
| 2577 | |
| 2578 template int | |
| 2579 do_printf_conv (std::ostream&, const char*, int, int, int, unsigned long, | |
| 2580 const std::string&); | |
| 2581 | |
| 2582 template int | |
| 2583 do_printf_conv (std::ostream&, const char*, int, int, int, double, | |
| 2584 const std::string&); | |
| 2585 | |
| 2586 template int | |
| 2587 do_printf_conv (std::ostream&, const char*, int, int, int, const char*, | |
| 2588 const std::string&); | |
| 2117 | 2589 |
| 6492 | 2590 #define DO_DOUBLE_CONV(TQUAL) \ |
| 2591 do \ | |
| 2592 { \ | |
| 7199 | 2593 if (val > std::numeric_limits<TQUAL long>::max () \ |
| 2594 || val < std::numeric_limits<TQUAL long>::min ()) \ | |
| 6492 | 2595 { \ |
| 7199 | 2596 std::string tfmt = fmt; \ |
| 6492 | 2597 \ |
| 7199 | 2598 tfmt.replace (tfmt.rfind (elt->type), 1, ".f"); \ |
| 6492 | 2599 \ |
| 7199 | 2600 if (elt->modifier == 'l') \ |
| 2601 tfmt.replace (tfmt.rfind (elt->modifier), 1, ""); \ | |
| 2602 \ | |
| 2603 retval += do_printf_conv (os, tfmt.c_str (), nsa, sa_1, sa_2, \ | |
| 2604 val, who); \ | |
| 6492 | 2605 } \ |
| 2606 else \ | |
| 7199 | 2607 retval += do_printf_conv (os, fmt, nsa, sa_1, sa_2, \ |
| 2608 static_cast<TQUAL long> (val), who); \ | |
| 6492 | 2609 } \ |
| 2610 while (0) | |
| 2611 | |
| 2117 | 2612 int |
| 2613 octave_base_stream::do_printf (printf_format_list& fmt_list, | |
| 4468 | 2614 const octave_value_list& args, |
| 2615 const std::string& who) | |
| 2117 | 2616 { |
| 3620 | 2617 int retval = 0; |
| 2117 | 2618 |
| 3640 | 2619 int nconv = fmt_list.num_conversions (); |
| 2620 | |
| 3523 | 2621 std::ostream *osp = output_stream (); |
| 2117 | 2622 |
| 2623 if (osp) | |
| 2624 { | |
| 3523 | 2625 std::ostream& os = *osp; |
| 2117 | 2626 |
| 2627 const printf_format_elt *elt = fmt_list.first (); | |
| 2628 | |
| 7352 | 2629 printf_value_cache val_cache (args, who); |
| 2630 | |
| 2631 if (error_state) | |
| 2632 return retval; | |
| 2117 | 2633 |
| 2634 for (;;) | |
| 2635 { | |
| 4153 | 2636 OCTAVE_QUIT; |
| 2637 | |
| 2117 | 2638 if (elt) |
| 2639 { | |
| 3640 | 2640 // NSA is the number of `star' args to convert. |
| 2641 | |
| 2642 int nsa = (elt->fw < 0) + (elt->prec < 0); | |
| 2117 | 2643 |
| 2644 int sa_1 = 0; | |
| 2645 int sa_2 = 0; | |
| 2646 | |
| 2647 if (nsa > 0) | |
| 2648 { | |
| 2649 sa_1 = val_cache.int_value (); | |
| 2650 | |
| 2651 if (! val_cache) | |
| 2652 break; | |
| 2653 else | |
| 2654 { | |
| 2655 if (nsa > 1) | |
| 2656 { | |
| 2657 sa_2 = val_cache.int_value (); | |
| 2658 | |
| 2659 if (! val_cache) | |
| 2660 break; | |
| 2661 } | |
| 2662 } | |
| 2663 } | |
| 2664 | |
| 2665 const char *fmt = elt->text; | |
| 2666 | |
| 3640 | 2667 if (elt->type == '%') |
| 2668 { | |
| 2669 os << "%"; | |
| 2670 retval++; | |
| 2671 } | |
| 2672 else if (elt->args == 0 && elt->text) | |
| 2673 { | |
| 2674 os << elt->text; | |
| 2675 retval += strlen (elt->text); | |
| 2676 } | |
| 4257 | 2677 else if (elt->type == 's') |
| 3640 | 2678 { |
| 2679 std::string val = val_cache.string_value (); | |
| 2680 | |
| 2681 if (val_cache) | |
| 2682 retval += do_printf_conv (os, fmt, nsa, sa_1, | |
| 4468 | 2683 sa_2, val.c_str (), who); |
| 3640 | 2684 else |
| 2685 break; | |
| 2686 } | |
| 2117 | 2687 else |
| 2688 { | |
| 3640 | 2689 double val = val_cache.double_value (); |
| 2690 | |
| 2691 if (val_cache) | |
| 2117 | 2692 { |
| 6492 | 2693 if (lo_ieee_isnan (val) || xisinf (val)) |
| 4303 | 2694 { |
| 2695 std::string tfmt = fmt; | |
| 6865 | 2696 std::string::size_type i1, i2; |
| 2697 | |
| 2698 tfmt.replace ((i1 = tfmt.rfind (elt->type)), | |
| 2699 1, 1, 's'); | |
| 2700 | |
| 8021 | 2701 if ((i2 = tfmt.rfind ('.')) != std::string::npos && i2 < i1) |
| 6865 | 2702 { |
| 2703 tfmt.erase (i2, i1-i2); | |
| 2704 if (elt->prec < 0) | |
| 2705 nsa--; | |
| 2706 } | |
| 6492 | 2707 |
| 2708 const char *tval = xisinf (val) | |
| 2709 ? (val < 0 ? "-Inf" : "Inf") | |
| 2710 : (lo_ieee_is_NA (val) ? "NA" : "NaN"); | |
| 2711 | |
| 2712 retval += do_printf_conv (os, tfmt.c_str (), | |
| 2713 nsa, sa_1, sa_2, | |
| 2714 tval, who); | |
| 4303 | 2715 } |
| 2716 else | |
| 3640 | 2717 { |
| 6492 | 2718 char type = elt->type; |
| 2719 | |
| 2720 switch (type) | |
| 4303 | 2721 { |
| 2722 case 'd': case 'i': case 'c': | |
| 7227 | 2723 DO_DOUBLE_CONV (OCTAVE_EMPTY_CPP_ARG); |
| 4303 | 2724 break; |
| 2725 | |
| 2726 case 'o': case 'x': case 'X': case 'u': | |
| 6492 | 2727 DO_DOUBLE_CONV (unsigned); |
| 4303 | 2728 break; |
| 2729 | |
| 2730 case 'f': case 'e': case 'E': | |
| 2731 case 'g': case 'G': | |
| 2732 retval | |
| 2733 += do_printf_conv (os, fmt, nsa, sa_1, sa_2, | |
| 4468 | 2734 val, who); |
| 4303 | 2735 break; |
| 2736 | |
| 2737 default: | |
| 4468 | 2738 error ("%s: invalid format specifier", |
| 2739 who.c_str ()); | |
| 4303 | 2740 return -1; |
| 2741 break; | |
| 2742 } | |
| 3640 | 2743 } |
| 2117 | 2744 } |
| 2745 else | |
| 3620 | 2746 break; |
| 2117 | 2747 } |
| 2748 | |
| 3620 | 2749 if (! os) |
| 2117 | 2750 { |
| 4468 | 2751 error ("%s: write error", who.c_str ()); |
| 2117 | 2752 break; |
| 2753 } | |
| 2754 } | |
| 2755 else | |
| 2756 { | |
| 4468 | 2757 ::error ("%s: internal error handling format", who.c_str ()); |
| 2117 | 2758 retval = -1; |
| 2759 break; | |
| 2760 } | |
| 2761 | |
| 3640 | 2762 elt = fmt_list.next (nconv > 0 && ! val_cache.exhausted ()); |
| 2763 | |
| 2764 if (! elt || (val_cache.exhausted () && elt->args > 0)) | |
| 2765 break; | |
| 2766 } | |
| 2117 | 2767 } |
| 3640 | 2768 else |
| 4468 | 2769 invalid_operation (who, "writing"); |
| 2117 | 2770 |
| 2771 return retval; | |
| 2772 } | |
| 2773 | |
| 2774 int | |
| 3640 | 2775 octave_base_stream::printf (const std::string& fmt, |
| 4468 | 2776 const octave_value_list& args, |
| 2777 const std::string& who) | |
| 2117 | 2778 { |
| 3640 | 2779 int retval = 0; |
| 2780 | |
| 2781 printf_format_list fmt_list (fmt); | |
| 2782 | |
| 2783 if (fmt_list.num_conversions () == -1) | |
| 4468 | 2784 ::error ("%s: invalid format specified", who.c_str ()); |
| 2117 | 2785 else |
| 4468 | 2786 retval = do_printf (fmt_list, args, who); |
| 2117 | 2787 |
| 2788 return retval; | |
| 2789 } | |
| 2790 | |
| 2791 int | |
| 4468 | 2792 octave_base_stream::puts (const std::string& s, const std::string& who) |
| 2117 | 2793 { |
| 2794 int retval = -1; | |
| 2795 | |
| 3523 | 2796 std::ostream *osp = output_stream (); |
| 2117 | 2797 |
| 2798 if (osp) | |
| 2799 { | |
| 3523 | 2800 std::ostream& os = *osp; |
| 2117 | 2801 |
| 2802 os << s; | |
| 2803 | |
| 2804 if (os) | |
| 2805 { | |
| 5775 | 2806 // FIXME -- why does this seem to be necessary? |
| 2117 | 2807 // Without it, output from a loop like |
| 2808 // | |
| 2809 // for i = 1:100, fputs (stdout, "foo\n"); endfor | |
| 2810 // | |
| 2811 // doesn't seem to go to the pager immediately. | |
| 2812 | |
| 2813 os.flush (); | |
| 2814 | |
| 2815 if (os) | |
| 2816 retval = 0; | |
| 2817 else | |
| 4468 | 2818 error ("%s: write error", who.c_str ()); |
| 2117 | 2819 } |
| 2820 else | |
| 4468 | 2821 error ("%s: write error", who.c_str ()); |
| 2117 | 2822 } |
| 2823 else | |
| 4468 | 2824 invalid_operation (who, "writing"); |
| 2117 | 2825 |
| 2826 return retval; | |
| 2827 } | |
| 2828 | |
| 2829 // Return current error message for this stream. | |
| 2830 | |
| 3536 | 2831 std::string |
| 2435 | 2832 octave_base_stream::error (bool clear_err, int& err_num) |
| 2117 | 2833 { |
| 2435 | 2834 err_num = fail ? -1 : 0; |
| 2117 | 2835 |
| 3523 | 2836 std::string tmp = errmsg; |
| 2117 | 2837 |
| 2838 if (clear_err) | |
| 2839 clear (); | |
| 2840 | |
| 2841 return tmp; | |
| 2842 } | |
| 2843 | |
| 2844 void | |
| 4468 | 2845 octave_base_stream::invalid_operation (const std::string& who, const char *rw) |
| 2117 | 2846 { |
| 4468 | 2847 // Note that this is not ::error () ! |
| 2848 | |
| 6297 | 2849 error (who, std::string ("stream not open for ") + rw); |
| 2117 | 2850 } |
| 2851 | |
| 3552 | 2852 octave_stream::octave_stream (octave_base_stream *bs) |
| 3340 | 2853 : rep (bs) |
| 2854 { | |
| 2855 if (rep) | |
| 2856 rep->count = 1; | |
| 2857 } | |
| 2858 | |
| 2859 octave_stream::~octave_stream (void) | |
| 2860 { | |
| 2861 if (rep && --rep->count == 0) | |
| 2862 delete rep; | |
| 2863 } | |
| 2864 | |
| 2865 octave_stream::octave_stream (const octave_stream& s) | |
| 2866 : rep (s.rep) | |
| 2867 { | |
| 2868 if (rep) | |
| 2869 rep->count++; | |
| 2870 } | |
| 2871 | |
| 2872 octave_stream& | |
| 2873 octave_stream::operator = (const octave_stream& s) | |
| 2874 { | |
| 2875 if (rep != s.rep) | |
| 2876 { | |
| 2877 if (rep && --rep->count == 0) | |
| 2878 delete rep; | |
| 2879 | |
| 2880 rep = s.rep; | |
| 2881 | |
| 2882 if (rep) | |
| 2883 rep->count++; | |
| 2884 } | |
| 2885 | |
| 2886 return *this; | |
| 2887 } | |
| 2888 | |
| 2117 | 2889 int |
| 2890 octave_stream::flush (void) | |
| 2891 { | |
| 2892 int retval = -1; | |
| 2893 | |
| 5659 | 2894 if (stream_ok ()) |
| 2117 | 2895 retval = rep->flush (); |
| 2896 | |
| 2897 return retval; | |
| 2898 } | |
| 2899 | |
| 3536 | 2900 std::string |
| 5275 | 2901 octave_stream::getl (octave_idx_type max_len, bool& err, const std::string& who) |
| 2117 | 2902 { |
| 3523 | 2903 std::string retval; |
| 2117 | 2904 |
| 5659 | 2905 if (stream_ok ()) |
| 4468 | 2906 retval = rep->getl (max_len, err, who); |
| 2117 | 2907 |
| 2908 return retval; | |
| 2909 } | |
| 2910 | |
| 3536 | 2911 std::string |
| 4468 | 2912 octave_stream::getl (const octave_value& tc_max_len, bool& err, |
| 2913 const std::string& who) | |
| 2117 | 2914 { |
| 3523 | 2915 std::string retval; |
| 2117 | 2916 |
| 2917 err = false; | |
| 2918 | |
| 2919 int conv_err = 0; | |
| 2920 | |
| 6345 | 2921 int max_len = -1; |
| 2922 | |
| 2923 if (tc_max_len.is_defined ()) | |
| 2117 | 2924 { |
| 6345 | 2925 max_len = convert_to_valid_int (tc_max_len, conv_err); |
| 2926 | |
| 2927 if (conv_err || max_len < 0) | |
| 2928 { | |
| 2929 err = true; | |
| 2930 ::error ("%s: invalid maximum length specified", who.c_str ()); | |
| 2931 } | |
| 2117 | 2932 } |
| 6345 | 2933 |
| 2934 if (! error_state) | |
| 4468 | 2935 retval = getl (max_len, err, who); |
| 2117 | 2936 |
| 2937 return retval; | |
| 2938 } | |
| 2939 | |
| 3536 | 2940 std::string |
| 5275 | 2941 octave_stream::gets (octave_idx_type max_len, bool& err, const std::string& who) |
| 2117 | 2942 { |
| 3523 | 2943 std::string retval; |
| 2117 | 2944 |
| 5659 | 2945 if (stream_ok ()) |
| 4468 | 2946 retval = rep->gets (max_len, err, who); |
| 2117 | 2947 |
| 2948 return retval; | |
| 2949 } | |
| 2950 | |
| 3536 | 2951 std::string |
| 4468 | 2952 octave_stream::gets (const octave_value& tc_max_len, bool& err, |
| 2953 const std::string& who) | |
| 2117 | 2954 { |
| 3523 | 2955 std::string retval; |
| 2117 | 2956 |
| 2957 err = false; | |
| 2958 | |
| 2959 int conv_err = 0; | |
| 2960 | |
| 6345 | 2961 int max_len = -1; |
| 2962 | |
| 2963 if (tc_max_len.is_defined ()) | |
| 2117 | 2964 { |
| 6345 | 2965 max_len = convert_to_valid_int (tc_max_len, conv_err); |
| 2966 | |
| 2967 if (conv_err || max_len < 0) | |
| 2968 { | |
| 2969 err = true; | |
| 2970 ::error ("%s: invalid maximum length specified", who.c_str ()); | |
| 2971 } | |
| 2117 | 2972 } |
| 6345 | 2973 |
| 2974 if (! error_state) | |
| 4468 | 2975 retval = gets (max_len, err, who); |
| 2117 | 2976 |
| 2977 return retval; | |
| 2978 } | |
| 2979 | |
| 9701 | 2980 long |
| 2981 octave_stream::skipl (long count, bool& err, const std::string& who) | |
| 2982 { | |
| 2983 long retval = -1; | |
| 2984 | |
| 2985 if (stream_ok ()) | |
| 2986 retval = rep->skipl (count, err, who); | |
| 2987 | |
| 2988 return retval; | |
| 2989 } | |
| 2990 | |
| 2991 long | |
| 2992 octave_stream::skipl (const octave_value& tc_count, bool& err, const std::string& who) | |
| 2993 { | |
| 2994 long retval = -1; | |
| 2995 | |
| 2996 err = false; | |
| 2997 | |
| 2998 int conv_err = 0; | |
| 2999 | |
| 3000 int count = 1; | |
| 3001 | |
| 3002 if (tc_count.is_defined ()) | |
| 3003 { | |
| 3004 if (tc_count.is_scalar_type () && xisinf (tc_count.scalar_value ())) | |
| 3005 count = -1; | |
| 3006 else | |
| 3007 { | |
| 3008 count = convert_to_valid_int (tc_count, conv_err); | |
| 3009 | |
| 3010 if (conv_err || count < 0) | |
| 3011 { | |
| 3012 err = true; | |
| 3013 ::error ("%s: invalid number of lines specified", who.c_str ()); | |
| 3014 } | |
| 3015 } | |
| 3016 } | |
| 3017 | |
| 3018 if (! error_state) | |
| 3019 retval = skipl (count, err, who); | |
| 3020 | |
| 3021 return retval; | |
| 3022 } | |
| 3023 | |
| 2117 | 3024 int |
| 4797 | 3025 octave_stream::seek (long offset, int origin) |
| 2117 | 3026 { |
| 5065 | 3027 int status = -1; |
| 2117 | 3028 |
| 5659 | 3029 if (stream_ok ()) |
| 4889 | 3030 { |
| 3031 clearerr (); | |
| 3032 | |
| 5065 | 3033 long orig_pos = rep->tell (); |
| 3034 | |
| 3035 status = rep->seek (offset, origin); | |
| 3036 | |
| 3037 if (status == 0) | |
| 3038 { | |
| 3039 long save_pos = rep->tell (); | |
| 3040 | |
| 3041 rep->seek (0, SEEK_END); | |
| 3042 | |
| 3043 long pos_eof = rep->tell (); | |
| 3044 | |
| 3045 // I don't think save_pos can be less than zero, but we'll | |
| 3046 // check anyway... | |
| 3047 | |
| 3048 if (save_pos > pos_eof || save_pos < 0) | |
| 3049 { | |
| 3050 // Seek outside bounds of file. Failure should leave | |
| 3051 // position unchanged. | |
| 3052 | |
| 3053 rep->seek (orig_pos, SEEK_SET); | |
| 3054 | |
| 3055 status = -1; | |
| 3056 } | |
| 3057 else | |
| 3058 { | |
| 3059 // Is it possible for this to fail? We are just | |
| 3060 // returning to a position after the first successful | |
| 3061 // seek. | |
| 3062 | |
| 3063 rep->seek (save_pos, SEEK_SET); | |
| 3064 } | |
| 3065 } | |
| 4889 | 3066 } |
| 2117 | 3067 |
| 5065 | 3068 return status; |
| 2117 | 3069 } |
| 3070 | |
| 3071 int | |
| 3072 octave_stream::seek (const octave_value& tc_offset, | |
| 3073 const octave_value& tc_origin) | |
| 3074 { | |
| 3075 int retval = -1; | |
| 3076 | |
| 4797 | 3077 long xoffset = tc_offset.long_value (true); |
| 4645 | 3078 |
| 3079 if (! error_state) | |
| 2117 | 3080 { |
| 4645 | 3081 int conv_err = 0; |
| 3082 | |
| 4797 | 3083 int origin = SEEK_SET; |
| 2117 | 3084 |
| 2341 | 3085 if (tc_origin.is_string ()) |
| 2117 | 3086 { |
| 3523 | 3087 std::string xorigin = tc_origin.string_value (); |
| 2341 | 3088 |
| 3089 if (xorigin == "bof") | |
| 4797 | 3090 origin = SEEK_SET; |
| 2341 | 3091 else if (xorigin == "cof") |
| 4797 | 3092 origin = SEEK_CUR; |
| 2341 | 3093 else if (xorigin == "eof") |
| 4797 | 3094 origin = SEEK_END; |
| 2117 | 3095 else |
| 3096 conv_err = -1; | |
| 3097 } | |
| 2341 | 3098 else |
| 3099 { | |
| 3100 int xorigin = convert_to_valid_int (tc_origin, conv_err); | |
| 3101 | |
| 3102 if (! conv_err) | |
| 3103 { | |
| 3104 if (xorigin == -1) | |
| 4797 | 3105 origin = SEEK_SET; |
| 2341 | 3106 else if (xorigin == 0) |
| 4797 | 3107 origin = SEEK_CUR; |
| 2341 | 3108 else if (xorigin == 1) |
| 4797 | 3109 origin = SEEK_END; |
| 2341 | 3110 else |
| 3111 conv_err = -1; | |
| 3112 } | |
| 3113 } | |
| 2117 | 3114 |
| 3115 if (! conv_err) | |
| 5065 | 3116 { |
| 3117 retval = seek (xoffset, origin); | |
| 3118 | |
| 3119 if (retval != 0) | |
| 3120 error ("fseek: failed to seek to requested position"); | |
| 3121 } | |
| 2117 | 3122 else |
| 3123 error ("fseek: invalid value for origin"); | |
| 3124 } | |
| 3125 else | |
| 3126 error ("fseek: invalid value for offset"); | |
| 3127 | |
| 3128 return retval; | |
| 3129 } | |
| 3130 | |
| 4797 | 3131 long |
| 3132 octave_stream::tell (void) | |
| 2117 | 3133 { |
| 4797 | 3134 long retval = -1; |
| 2117 | 3135 |
| 5659 | 3136 if (stream_ok ()) |
| 2117 | 3137 retval = rep->tell (); |
| 3138 | |
| 3139 return retval; | |
| 3140 } | |
| 3141 | |
| 3142 int | |
| 3143 octave_stream::rewind (void) | |
| 3144 { | |
| 6296 | 3145 return seek (0, SEEK_SET); |
| 2117 | 3146 } |
| 3147 | |
| 3340 | 3148 bool |
| 3149 octave_stream::is_open (void) const | |
| 3150 { | |
| 3151 bool retval = false; | |
| 3152 | |
| 5659 | 3153 if (stream_ok ()) |
| 3340 | 3154 retval = rep->is_open (); |
| 3155 | |
| 3156 return retval; | |
| 3157 } | |
| 3158 | |
| 3159 void | |
| 3160 octave_stream::close (void) | |
| 3161 { | |
| 5659 | 3162 if (stream_ok ()) |
| 3340 | 3163 rep->close (); |
| 3164 } | |
| 3165 | |
| 4944 | 3166 template <class RET_T, class READ_T> |
| 2117 | 3167 octave_value |
| 5275 | 3168 do_read (octave_stream& strm, octave_idx_type nr, octave_idx_type nc, octave_idx_type block_size, |
| 7995 | 3169 octave_idx_type skip, bool do_float_fmt_conv, bool do_NA_conv, |
| 5275 | 3170 oct_mach_info::float_format from_flt_fmt, octave_idx_type& count) |
| 2117 | 3171 { |
| 3172 octave_value retval; | |
| 3173 | |
| 4944 | 3174 RET_T nda; |
| 3175 | |
| 3176 count = 0; | |
| 3177 | |
| 9685 | 3178 typename RET_T::element_type elt_zero |
| 3179 = typename RET_T::element_type (); | |
| 3180 | |
| 3181 typename RET_T::element_type *dat = 0; | |
| 4944 | 3182 |
| 5275 | 3183 octave_idx_type max_size = 0; |
| 3184 | |
| 3185 octave_idx_type final_nr = 0; | |
| 3186 octave_idx_type final_nc = 1; | |
| 4944 | 3187 |
| 3188 if (nr > 0) | |
| 3189 { | |
| 3190 if (nc > 0) | |
| 3191 { | |
| 3192 nda.resize (dim_vector (nr, nc), elt_zero); | |
| 3193 dat = nda.fortran_vec (); | |
| 3194 max_size = nr * nc; | |
| 3195 } | |
| 3196 else | |
| 3197 { | |
| 3198 nda.resize (dim_vector (nr, 32), elt_zero); | |
| 3199 dat = nda.fortran_vec (); | |
| 3200 max_size = nr * 32; | |
| 3201 } | |
| 3202 } | |
| 3203 else | |
| 3204 { | |
| 3205 nda.resize (dim_vector (32, 1), elt_zero); | |
| 3206 dat = nda.fortran_vec (); | |
| 3207 max_size = 32; | |
| 3208 } | |
| 3209 | |
| 5775 | 3210 // FIXME -- byte order for Cray? |
| 4944 | 3211 |
| 3212 bool swap = false; | |
| 3213 | |
| 3214 if (oct_mach_info::words_big_endian ()) | |
| 3215 swap = (from_flt_fmt == oct_mach_info::flt_fmt_ieee_little_endian | |
| 3216 || from_flt_fmt == oct_mach_info::flt_fmt_vax_g | |
| 3217 || from_flt_fmt == oct_mach_info::flt_fmt_vax_g); | |
| 3218 else | |
| 3219 swap = (from_flt_fmt == oct_mach_info::flt_fmt_ieee_big_endian); | |
| 3220 | |
| 3221 union | |
| 3222 { | |
| 9685 | 3223 char buf[sizeof (typename strip_template_param<octave_int, READ_T>::type)]; |
| 3224 typename strip_template_param<octave_int, READ_T>::type val; | |
| 4944 | 3225 } u; |
| 3226 | |
| 3227 std::istream *isp = strm.input_stream (); | |
| 3228 | |
| 3229 if (isp) | |
| 3230 { | |
| 3231 std::istream& is = *isp; | |
| 3232 | |
| 5275 | 3233 octave_idx_type elts_read = 0; |
| 4944 | 3234 |
| 3235 for (;;) | |
| 3236 { | |
| 5775 | 3237 // FIXME -- maybe there should be a special case for |
| 4944 | 3238 // skip == 0. |
| 3239 | |
| 3240 if (is) | |
| 3241 { | |
| 3242 if (nr > 0 && nc > 0 && count == max_size) | |
| 3243 { | |
| 3244 final_nr = nr; | |
| 3245 final_nc = nc; | |
| 3246 | |
| 3247 break; | |
| 3248 } | |
| 3249 | |
| 9685 | 3250 is.read (u.buf, sizeof (typename strip_template_param<octave_int, READ_T>::type)); |
| 4944 | 3251 |
| 3252 // We only swap bytes for integer types. For float | |
| 3253 // types, the format conversion will also handle byte | |
| 3254 // swapping. | |
| 3255 | |
| 3256 if (swap) | |
| 9685 | 3257 swap_bytes<sizeof (typename strip_template_param<octave_int, READ_T>::type)> (u.buf); |
| 4944 | 3258 else if (do_float_fmt_conv) |
| 3259 do_float_format_conversion | |
| 3260 (u.buf, | |
| 9685 | 3261 sizeof (typename strip_template_param<octave_int, READ_T>::type), |
| 4944 | 3262 1, from_flt_fmt, oct_mach_info::float_format ()); |
| 3263 | |
| 9685 | 3264 typename RET_T::element_type tmp |
| 3265 = static_cast <typename RET_T::element_type> (u.val); | |
| 4944 | 3266 |
| 5030 | 3267 if (is) |
| 4944 | 3268 { |
| 5030 | 3269 if (count == max_size) |
| 4944 | 3270 { |
| 5030 | 3271 max_size *= 2; |
| 3272 | |
| 3273 if (nr > 0) | |
| 3274 nda.resize (dim_vector (nr, max_size / nr), | |
| 3275 elt_zero); | |
| 3276 else | |
| 3277 nda.resize (dim_vector (max_size, 1), elt_zero); | |
| 3278 | |
| 3279 dat = nda.fortran_vec (); | |
| 4944 | 3280 } |
| 3281 | |
| 7995 | 3282 if (do_NA_conv && __lo_ieee_is_old_NA (tmp)) |
| 3283 tmp = __lo_ieee_replace_old_NA (tmp); | |
| 3284 | |
| 5030 | 3285 dat[count++] = tmp; |
| 3286 | |
| 3287 elts_read++; | |
| 3288 } | |
| 3289 | |
|
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3290 int seek_status = 0; |
|
2c4b0cbda85a
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John W. Eaton <jwe@octave.org>
parents:
7433
diff
changeset
|
3291 |
| 5030 | 3292 if (skip != 0 && elts_read == block_size) |
| 3293 { | |
|
7538
2c4b0cbda85a
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John W. Eaton <jwe@octave.org>
parents:
7433
diff
changeset
|
3294 seek_status = strm.seek (skip, SEEK_CUR); |
| 5030 | 3295 elts_read = 0; |
| 3296 } | |
| 3297 | |
|
7538
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parents:
7433
diff
changeset
|
3298 if (is.eof () || seek_status < 0) |
| 5030 | 3299 { |
| 3300 if (nr > 0) | |
| 4944 | 3301 { |
| 5030 | 3302 if (count > nr) |
| 4944 | 3303 { |
| 5030 | 3304 final_nr = nr; |
| 3305 final_nc = (count - 1) / nr + 1; | |
| 4944 | 3306 } |
| 3307 else | |
| 3308 { | |
| 3309 final_nr = count; | |
| 3310 final_nc = 1; | |
| 3311 } | |
| 3312 } | |
| 5030 | 3313 else |
| 3314 { | |
| 3315 final_nr = count; | |
| 3316 final_nc = 1; | |
| 3317 } | |
| 3318 | |
| 4944 | 3319 break; |
| 3320 } | |
| 3321 } | |
| 5030 | 3322 else if (is.eof ()) |
| 3323 break; | |
| 4944 | 3324 } |
| 3325 } | |
| 3326 | |
| 5030 | 3327 nda.resize (dim_vector (final_nr, final_nc), elt_zero); |
| 3328 | |
| 3329 retval = nda; | |
| 4944 | 3330 |
| 3331 return retval; | |
| 3332 } | |
| 3333 | |
| 3334 #define DO_READ_VAL_TEMPLATE(RET_T, READ_T) \ | |
| 3335 template octave_value \ | |
| 7995 | 3336 do_read<RET_T, READ_T> (octave_stream&, octave_idx_type, octave_idx_type, octave_idx_type, octave_idx_type, bool, bool, \ |
| 5275 | 3337 oct_mach_info::float_format, octave_idx_type&) |
| 4944 | 3338 |
| 5775 | 3339 // FIXME -- should we only have float if it is a different |
| 4944 | 3340 // size from double? |
| 3341 | |
| 3342 #define INSTANTIATE_DO_READ(VAL_T) \ | |
| 3343 DO_READ_VAL_TEMPLATE (VAL_T, octave_int8); \ | |
| 3344 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint8); \ | |
| 3345 DO_READ_VAL_TEMPLATE (VAL_T, octave_int16); \ | |
| 3346 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint16); \ | |
| 3347 DO_READ_VAL_TEMPLATE (VAL_T, octave_int32); \ | |
| 3348 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint32); \ | |
| 3349 DO_READ_VAL_TEMPLATE (VAL_T, octave_int64); \ | |
| 3350 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint64); \ | |
| 3351 DO_READ_VAL_TEMPLATE (VAL_T, float); \ | |
| 3352 DO_READ_VAL_TEMPLATE (VAL_T, double); \ | |
| 3353 DO_READ_VAL_TEMPLATE (VAL_T, char); \ | |
| 3354 DO_READ_VAL_TEMPLATE (VAL_T, signed char); \ | |
| 3355 DO_READ_VAL_TEMPLATE (VAL_T, unsigned char) | |
| 3356 | |
| 4970 | 3357 INSTANTIATE_DO_READ (int8NDArray); |
| 3358 INSTANTIATE_DO_READ (uint8NDArray); | |
| 3359 INSTANTIATE_DO_READ (int16NDArray); | |
| 3360 INSTANTIATE_DO_READ (uint16NDArray); | |
| 3361 INSTANTIATE_DO_READ (int32NDArray); | |
| 3362 INSTANTIATE_DO_READ (uint32NDArray); | |
| 3363 INSTANTIATE_DO_READ (int64NDArray); | |
| 3364 INSTANTIATE_DO_READ (uint64NDArray); | |
|
7789
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David Bateman <dbateman@free.fr>
parents:
7724
diff
changeset
|
3365 INSTANTIATE_DO_READ (FloatNDArray); |
| 4970 | 3366 INSTANTIATE_DO_READ (NDArray); |
| 3367 INSTANTIATE_DO_READ (charNDArray); | |
| 5780 | 3368 INSTANTIATE_DO_READ (boolNDArray); |
| 4944 | 3369 |
| 7995 | 3370 typedef octave_value (*read_fptr) (octave_stream&, octave_idx_type, octave_idx_type, octave_idx_type, octave_idx_type, bool, bool, |
| 5275 | 3371 oct_mach_info::float_format ffmt, octave_idx_type&); |
| 4944 | 3372 |
| 3373 #define FILL_TABLE_ROW(R, VAL_T) \ | |
|
9202
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diff
changeset
|
3374 read_fptr_table[R][oct_data_conv::dt_int8] = do_read<VAL_T, octave_int8>; \ |
|
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parents:
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diff
changeset
|
3375 read_fptr_table[R][oct_data_conv::dt_uint8] = do_read<VAL_T, octave_uint8>; \ |
|
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parents:
9017
diff
changeset
|
3376 read_fptr_table[R][oct_data_conv::dt_int16] = do_read<VAL_T, octave_int16>; \ |
|
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diff
changeset
|
3377 read_fptr_table[R][oct_data_conv::dt_uint16] = do_read<VAL_T, octave_uint16>; \ |
|
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diff
changeset
|
3378 read_fptr_table[R][oct_data_conv::dt_int32] = do_read<VAL_T, octave_int32>; \ |
|
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
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diff
changeset
|
3379 read_fptr_table[R][oct_data_conv::dt_uint32] = do_read<VAL_T, octave_uint32>; \ |
|
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Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
3380 read_fptr_table[R][oct_data_conv::dt_int64] = do_read<VAL_T, octave_int64>; \ |
|
4b2147b25e8d
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Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
3381 read_fptr_table[R][oct_data_conv::dt_uint64] = do_read<VAL_T, octave_uint64>; \ |
|
4b2147b25e8d
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Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3382 read_fptr_table[R][oct_data_conv::dt_single] = do_read<VAL_T, float>; \ |
|
4b2147b25e8d
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parents:
9017
diff
changeset
|
3383 read_fptr_table[R][oct_data_conv::dt_double] = do_read<VAL_T, double>; \ |
|
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
3384 read_fptr_table[R][oct_data_conv::dt_char] = do_read<VAL_T, char>; \ |
|
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parents:
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diff
changeset
|
3385 read_fptr_table[R][oct_data_conv::dt_schar] = do_read<VAL_T, signed char>; \ |
|
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parents:
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diff
changeset
|
3386 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
|
3387 read_fptr_table[R][oct_data_conv::dt_logical] = do_read<VAL_T, unsigned char> |
| 4944 | 3388 |
| 3389 octave_value | |
| 5275 | 3390 octave_stream::read (const Array<double>& size, octave_idx_type block_size, |
| 4944 | 3391 oct_data_conv::data_type input_type, |
| 3392 oct_data_conv::data_type output_type, | |
| 5275 | 3393 octave_idx_type skip, oct_mach_info::float_format ffmt, |
| 3394 octave_idx_type& char_count) | |
| 4944 | 3395 { |
| 3396 static bool initialized = false; | |
| 3397 | |
| 3398 // Table function pointers for return types x read types. | |
| 3399 | |
|
9202
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diff
changeset
|
3400 static read_fptr read_fptr_table[oct_data_conv::dt_unknown][14]; |
| 4944 | 3401 |
| 3402 if (! initialized) | |
| 3403 { | |
|
9202
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clean up Array instantiation mess in oct-stream.cc
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parents:
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diff
changeset
|
3404 for (int i = 0; i < oct_data_conv::dt_unknown; i++) |
|
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diff
changeset
|
3405 for (int j = 0; j < 14; j++) |
|
4b2147b25e8d
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parents:
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diff
changeset
|
3406 read_fptr_table[i][j] = 0; |
|
4b2147b25e8d
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diff
changeset
|
3407 |
| 4944 | 3408 FILL_TABLE_ROW (oct_data_conv::dt_int8, int8NDArray); |
| 3409 FILL_TABLE_ROW (oct_data_conv::dt_uint8, uint8NDArray); | |
| 3410 FILL_TABLE_ROW (oct_data_conv::dt_int16, int16NDArray); | |
| 3411 FILL_TABLE_ROW (oct_data_conv::dt_uint16, uint16NDArray); | |
| 3412 FILL_TABLE_ROW (oct_data_conv::dt_int32, int32NDArray); | |
| 3413 FILL_TABLE_ROW (oct_data_conv::dt_uint32, uint32NDArray); | |
| 3414 FILL_TABLE_ROW (oct_data_conv::dt_int64, int64NDArray); | |
| 3415 FILL_TABLE_ROW (oct_data_conv::dt_uint64, uint64NDArray); | |
|
7789
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7724
diff
changeset
|
3416 FILL_TABLE_ROW (oct_data_conv::dt_single, FloatNDArray); |
| 4944 | 3417 FILL_TABLE_ROW (oct_data_conv::dt_double, NDArray); |
| 3418 FILL_TABLE_ROW (oct_data_conv::dt_char, charNDArray); | |
| 3419 FILL_TABLE_ROW (oct_data_conv::dt_schar, charNDArray); | |
| 3420 FILL_TABLE_ROW (oct_data_conv::dt_uchar, charNDArray); | |
| 4970 | 3421 FILL_TABLE_ROW (oct_data_conv::dt_logical, boolNDArray); |
| 4944 | 3422 |
| 3423 initialized = true; | |
| 3424 } | |
| 3425 | |
| 3426 octave_value retval; | |
| 3427 | |
| 5659 | 3428 if (stream_ok ()) |
| 4944 | 3429 { |
| 5775 | 3430 // FIXME -- we may eventually want to make this extensible. |
| 3431 | |
| 3432 // FIXME -- we need a better way to ensure that this | |
| 4944 | 3433 // numbering stays consistent with the order of the elements in the |
| 3434 // data_type enum in the oct_data_conv class. | |
| 3435 | |
| 3436 char_count = 0; | |
| 3437 | |
| 5275 | 3438 octave_idx_type nr = -1; |
| 3439 octave_idx_type nc = -1; | |
| 4944 | 3440 |
| 3441 bool ignore; | |
| 3442 | |
| 3443 get_size (size, nr, nc, ignore, "fread"); | |
| 3444 | |
| 3445 if (! error_state) | |
| 3446 { | |
| 3447 if (nr == 0 || nc == 0) | |
| 3448 retval = Matrix (nr, nc); | |
| 3449 else | |
| 3450 { | |
| 3451 if (ffmt == oct_mach_info::flt_fmt_unknown) | |
| 3452 ffmt = float_format (); | |
| 3453 | |
|
9202
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3454 read_fptr fcn = read_fptr_table[output_type][input_type]; |
| 4944 | 3455 |
| 3456 bool do_float_fmt_conv = ((input_type == oct_data_conv::dt_double | |
| 3457 || input_type == oct_data_conv::dt_single) | |
| 3458 && ffmt != float_format ()); | |
| 3459 | |
| 7995 | 3460 bool do_NA_conv = (output_type == oct_data_conv::dt_double); |
| 3461 | |
| 4944 | 3462 if (fcn) |
| 3463 { | |
| 3464 retval = (*fcn) (*this, nr, nc, block_size, skip, | |
| 7995 | 3465 do_float_fmt_conv, do_NA_conv, |
| 3466 ffmt, char_count); | |
| 4944 | 3467 |
| 5775 | 3468 // FIXME -- kluge! |
| 4944 | 3469 |
| 3470 if (! error_state | |
| 3471 && (output_type == oct_data_conv::dt_char | |
| 3472 || output_type == oct_data_conv::dt_schar | |
| 3473 || output_type == oct_data_conv::dt_uchar)) | |
|
9689
34d6f005db4b
eliminate is_string argument from octave_value character array constructors
John W. Eaton <jwe@octave.org>
parents:
9685
diff
changeset
|
3474 retval = retval.char_matrix_value (); |
| 4944 | 3475 } |
| 3476 else | |
| 3477 error ("fread: unable to read and convert requested types"); | |
| 3478 } | |
| 3479 } | |
| 3480 else | |
| 3481 invalid_operation ("fread", "reading"); | |
| 3482 } | |
| 2117 | 3483 |
| 3484 return retval; | |
| 3485 } | |
| 3486 | |
| 5275 | 3487 octave_idx_type |
| 3488 octave_stream::write (const octave_value& data, octave_idx_type block_size, | |
| 3489 oct_data_conv::data_type output_type, octave_idx_type skip, | |
| 2317 | 3490 oct_mach_info::float_format flt_fmt) |
| 2117 | 3491 { |
| 5275 | 3492 octave_idx_type retval = -1; |
| 2117 | 3493 |
| 5659 | 3494 if (stream_ok ()) |
| 4944 | 3495 { |
| 3496 if (! error_state) | |
| 3497 { | |
| 3498 if (flt_fmt == oct_mach_info::flt_fmt_unknown) | |
| 3499 flt_fmt = float_format (); | |
| 3500 | |
| 5275 | 3501 octave_idx_type status = data.write (*this, block_size, output_type, |
| 4944 | 3502 skip, flt_fmt); |
| 3503 | |
| 3504 if (status < 0) | |
| 3505 error ("fwrite: write error"); | |
| 3506 else | |
| 3507 retval = status; | |
| 3508 } | |
| 3509 else | |
| 3510 invalid_operation ("fwrite", "writing"); | |
| 3511 } | |
| 2117 | 3512 |
| 3513 return retval; | |
| 3514 } | |
| 3515 | |
| 4944 | 3516 template <class T> |
| 3517 void | |
| 3518 write_int (std::ostream& os, bool swap, const T& val) | |
| 3519 { | |
| 9685 | 3520 typename T::val_type tmp = val.value (); |
| 4944 | 3521 |
| 3522 if (swap) | |
| 9685 | 3523 swap_bytes<sizeof (typename T::val_type)> (&tmp); |
| 4944 | 3524 |
| 3525 os.write (reinterpret_cast<const char *> (&tmp), | |
| 9685 | 3526 sizeof (typename T::val_type)); |
| 4944 | 3527 } |
| 3528 | |
| 3529 template void write_int (std::ostream&, bool, const octave_int8&); | |
| 3530 template void write_int (std::ostream&, bool, const octave_uint8&); | |
| 3531 template void write_int (std::ostream&, bool, const octave_int16&); | |
| 3532 template void write_int (std::ostream&, bool, const octave_uint16&); | |
| 3533 template void write_int (std::ostream&, bool, const octave_int32&); | |
| 3534 template void write_int (std::ostream&, bool, const octave_uint32&); | |
| 3535 template void write_int (std::ostream&, bool, const octave_int64&); | |
| 3536 template void write_int (std::ostream&, bool, const octave_uint64&); | |
| 3537 | |
| 3538 template <class T> | |
| 3539 static inline bool | |
| 3540 do_write (std::ostream& os, const T& val, oct_data_conv::data_type output_type, | |
| 3541 oct_mach_info::float_format flt_fmt, bool swap, | |
| 3542 bool do_float_conversion) | |
| 3543 { | |
| 3544 bool retval = true; | |
| 3545 | |
| 3546 // For compatibility, Octave converts to the output type, then | |
| 3547 // writes. This means that truncation happens on the conversion. | |
| 3548 // For example, the following program prints 0: | |
| 3549 // | |
| 3550 // x = int8 (-1) | |
| 3551 // f = fopen ("foo.dat", "w"); | |
| 3552 // fwrite (f, x, "unsigned char"); | |
| 3553 // fclose (f); | |
| 3554 // f = fopen ("foo.dat", "r"); | |
| 3555 // y = fread (f, 1, "unsigned char"); | |
| 3556 // printf ("%d\n", y); | |
| 3557 | |
| 3558 switch (output_type) | |
| 3559 { | |
| 3560 case oct_data_conv::dt_char: | |
| 3561 case oct_data_conv::dt_schar: | |
| 3562 case oct_data_conv::dt_int8: | |
| 3563 write_int (os, swap, octave_int8 (val)); | |
| 3564 break; | |
| 3565 | |
| 3566 case oct_data_conv::dt_uchar: | |
| 3567 case oct_data_conv::dt_uint8: | |
| 3568 write_int (os, swap, octave_uint8 (val)); | |
| 3569 break; | |
| 3570 | |
| 3571 case oct_data_conv::dt_int16: | |
| 3572 write_int (os, swap, octave_int16 (val)); | |
| 3573 break; | |
| 3574 | |
| 3575 case oct_data_conv::dt_uint16: | |
| 3576 write_int (os, swap, octave_uint16 (val)); | |
| 3577 break; | |
| 3578 | |
| 3579 case oct_data_conv::dt_int32: | |
| 3580 write_int (os, swap, octave_int32 (val)); | |
| 3581 break; | |
| 3582 | |
| 3583 case oct_data_conv::dt_uint32: | |
| 3584 write_int (os, swap, octave_uint32 (val)); | |
| 3585 break; | |
| 3586 | |
| 3587 case oct_data_conv::dt_int64: | |
| 3588 write_int (os, swap, octave_int64 (val)); | |
| 3589 break; | |
| 3590 | |
| 3591 case oct_data_conv::dt_uint64: | |
| 3592 write_int (os, swap, octave_uint64 (val)); | |
| 3593 break; | |
| 3594 | |
| 3595 case oct_data_conv::dt_single: | |
| 3596 { | |
| 3597 float f = static_cast<float> (val); | |
| 3598 | |
| 3599 if (do_float_conversion) | |
| 3600 do_float_format_conversion (&f, 1, flt_fmt); | |
| 3601 | |
| 3602 os.write (reinterpret_cast<const char *> (&f), sizeof (float)); | |
| 3603 } | |
| 3604 break; | |
| 3605 | |
| 3606 case oct_data_conv::dt_double: | |
| 3607 { | |
| 3608 double d = static_cast<double> (val); | |
| 3609 if (do_float_conversion) | |
| 3610 do_double_format_conversion (&d, 1, flt_fmt); | |
| 3611 | |
| 3612 os.write (reinterpret_cast<const char *> (&d), sizeof (double)); | |
| 3613 } | |
| 3614 break; | |
| 3615 | |
| 3616 default: | |
| 3617 retval = false; | |
| 3618 (*current_liboctave_error_handler) | |
| 3619 ("write: invalid type specification"); | |
| 3620 break; | |
| 3621 } | |
| 3622 | |
| 3623 return retval; | |
| 3624 } | |
| 3625 | |
| 5887 | 3626 template bool |
| 3627 do_write (std::ostream&, const octave_int8&, oct_data_conv::data_type, | |
| 3628 oct_mach_info::float_format, bool, bool); | |
| 3629 | |
| 3630 template bool | |
| 3631 do_write (std::ostream&, const octave_uint8&, oct_data_conv::data_type, | |
| 3632 oct_mach_info::float_format, bool, bool); | |
| 3633 | |
| 3634 template bool | |
| 3635 do_write (std::ostream&, const octave_int16&, oct_data_conv::data_type, | |
| 3636 oct_mach_info::float_format, bool, bool); | |
| 3637 | |
| 3638 template bool | |
| 3639 do_write (std::ostream&, const octave_uint16&, oct_data_conv::data_type, | |
| 3640 oct_mach_info::float_format, bool, bool); | |
| 3641 | |
| 3642 template bool | |
| 3643 do_write (std::ostream&, const octave_int32&, oct_data_conv::data_type, | |
| 3644 oct_mach_info::float_format, bool, bool); | |
| 3645 | |
| 3646 template bool | |
| 3647 do_write (std::ostream&, const octave_uint32&, oct_data_conv::data_type, | |
| 3648 oct_mach_info::float_format, bool, bool); | |
| 3649 | |
| 3650 template bool | |
| 3651 do_write (std::ostream&, const octave_int64&, oct_data_conv::data_type, | |
| 3652 oct_mach_info::float_format, bool, bool); | |
| 3653 | |
| 3654 template bool | |
| 3655 do_write (std::ostream&, const octave_uint64&, oct_data_conv::data_type, | |
| 3656 oct_mach_info::float_format, bool, bool); | |
| 3657 | |
| 4944 | 3658 template <class T> |
| 5275 | 3659 octave_idx_type |
| 3660 octave_stream::write (const Array<T>& data, octave_idx_type block_size, | |
| 4944 | 3661 oct_data_conv::data_type output_type, |
| 5275 | 3662 octave_idx_type skip, oct_mach_info::float_format flt_fmt) |
| 4944 | 3663 { |
| 5275 | 3664 octave_idx_type retval = -1; |
| 4944 | 3665 |
| 3666 bool status = true; | |
| 3667 | |
| 5275 | 3668 octave_idx_type count = 0; |
| 4944 | 3669 |
| 3670 const T *d = data.data (); | |
| 3671 | |
| 5275 | 3672 octave_idx_type n = data.length (); |
| 4944 | 3673 |
| 3674 oct_mach_info::float_format native_flt_fmt | |
| 3675 = oct_mach_info::float_format (); | |
| 3676 | |
| 3677 bool do_float_conversion = (flt_fmt != native_flt_fmt); | |
| 3678 | |
| 5775 | 3679 // FIXME -- byte order for Cray? |
| 4944 | 3680 |
| 3681 bool swap = false; | |
| 3682 | |
| 3683 if (oct_mach_info::words_big_endian ()) | |
| 3684 swap = (flt_fmt == oct_mach_info::flt_fmt_ieee_little_endian | |
| 3685 || flt_fmt == oct_mach_info::flt_fmt_vax_g | |
| 3686 || flt_fmt == oct_mach_info::flt_fmt_vax_g); | |
| 3687 else | |
| 3688 swap = (flt_fmt == oct_mach_info::flt_fmt_ieee_big_endian); | |
| 3689 | |
| 5275 | 3690 for (octave_idx_type i = 0; i < n; i++) |
| 4944 | 3691 { |
| 3692 std::ostream *osp = output_stream (); | |
| 3693 | |
| 3694 if (osp) | |
| 3695 { | |
| 3696 std::ostream& os = *osp; | |
| 3697 | |
| 3698 if (skip != 0 && (i % block_size) == 0) | |
| 5254 | 3699 { |
|
9017
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3700 // Seek to skip when inside bounds of existing file. |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3701 // Otherwise, write NUL to skip. |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3702 |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3703 long orig_pos = tell (); |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3704 |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3705 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
|
3706 |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3707 long eof_pos = tell (); |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3708 |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3709 // 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
|
3710 // original position? |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3711 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
|
3712 |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3713 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
|
3714 |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3715 if (remaining < skip) |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3716 { |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3717 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
|
3718 |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3719 // 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
|
3720 // blocks... |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3721 |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3722 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
|
3723 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
|
3724 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
|
3725 } |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3726 else |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3727 seek (skip, SEEK_CUR); |
| 5254 | 3728 } |
| 4944 | 3729 |
| 3730 if (os) | |
| 3731 { | |
| 3732 status = do_write (os, d[i], output_type, flt_fmt, swap, | |
| 3733 do_float_conversion); | |
| 3734 | |
| 3735 if (os && status) | |
| 3736 count++; | |
| 3737 else | |
| 3738 break; | |
| 3739 } | |
| 3740 else | |
| 3741 { | |
| 3742 status = false; | |
| 3743 break; | |
| 3744 } | |
| 3745 } | |
| 3746 else | |
| 3747 { | |
| 3748 status = false; | |
| 3749 break; | |
| 3750 } | |
| 3751 } | |
| 3752 | |
| 3753 if (status) | |
| 3754 retval = count; | |
| 3755 | |
| 3756 return retval; | |
| 3757 } | |
| 3758 | |
| 5275 | 3759 template octave_idx_type |
| 3760 octave_stream::write (const Array<char>&, octave_idx_type, | |
| 4944 | 3761 oct_data_conv::data_type, |
| 5275 | 3762 octave_idx_type, oct_mach_info::float_format); |
| 3763 | |
| 3764 template octave_idx_type | |
| 3765 octave_stream::write (const Array<bool>&, octave_idx_type, | |
| 4970 | 3766 oct_data_conv::data_type, |
| 5275 | 3767 octave_idx_type, oct_mach_info::float_format); |
| 3768 | |
| 3769 template octave_idx_type | |
| 3770 octave_stream::write (const Array<double>&, octave_idx_type, | |
| 4944 | 3771 oct_data_conv::data_type, |
| 5275 | 3772 octave_idx_type, oct_mach_info::float_format); |
| 3773 | |
| 3774 template octave_idx_type | |
|
7789
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7724
diff
changeset
|
3775 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
|
3776 oct_data_conv::data_type, |
|
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7724
diff
changeset
|
3777 octave_idx_type, oct_mach_info::float_format); |
|
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7724
diff
changeset
|
3778 |
|
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7724
diff
changeset
|
3779 template octave_idx_type |
| 5275 | 3780 octave_stream::write (const Array<octave_int8>&, octave_idx_type, |
| 4944 | 3781 oct_data_conv::data_type, |
| 5275 | 3782 octave_idx_type, oct_mach_info::float_format); |
| 3783 | |
| 3784 template octave_idx_type | |
| 3785 octave_stream::write (const Array<octave_uint8>&, octave_idx_type, | |
| 4944 | 3786 oct_data_conv::data_type, |
| 5275 | 3787 octave_idx_type, oct_mach_info::float_format); |
| 3788 | |
| 3789 template octave_idx_type | |
| 3790 octave_stream::write (const Array<octave_int16>&, octave_idx_type, | |
| 4944 | 3791 oct_data_conv::data_type, |
| 5275 | 3792 octave_idx_type, oct_mach_info::float_format); |
| 3793 | |
| 3794 template octave_idx_type | |
| 3795 octave_stream::write (const Array<octave_uint16>&, octave_idx_type, | |
| 4944 | 3796 oct_data_conv::data_type, |
| 5275 | 3797 octave_idx_type, oct_mach_info::float_format); |
| 3798 | |
| 3799 template octave_idx_type | |
| 3800 octave_stream::write (const Array<octave_int32>&, octave_idx_type, | |
| 4944 | 3801 oct_data_conv::data_type, |
| 5275 | 3802 octave_idx_type, oct_mach_info::float_format); |
| 3803 | |
| 3804 template octave_idx_type | |
| 3805 octave_stream::write (const Array<octave_uint32>&, octave_idx_type, | |
| 4944 | 3806 oct_data_conv::data_type, |
| 5275 | 3807 octave_idx_type, oct_mach_info::float_format); |
| 3808 | |
| 3809 template octave_idx_type | |
| 3810 octave_stream::write (const Array<octave_int64>&, octave_idx_type, | |
| 4944 | 3811 oct_data_conv::data_type, |
| 5275 | 3812 octave_idx_type, oct_mach_info::float_format); |
| 3813 | |
| 3814 template octave_idx_type | |
| 3815 octave_stream::write (const Array<octave_uint64>&, octave_idx_type, | |
| 4944 | 3816 oct_data_conv::data_type, |
| 5275 | 3817 octave_idx_type, oct_mach_info::float_format); |
| 4944 | 3818 |
| 2117 | 3819 octave_value |
| 3810 | 3820 octave_stream::scanf (const std::string& fmt, const Array<double>& size, |
| 5275 | 3821 octave_idx_type& count, const std::string& who) |
| 2117 | 3822 { |
| 3823 octave_value retval; | |
| 3824 | |
| 5659 | 3825 if (stream_ok ()) |
| 4468 | 3826 retval = rep->scanf (fmt, size, count, who); |
| 2117 | 3827 |
| 3828 return retval; | |
| 3829 } | |
| 3830 | |
| 5279 | 3831 octave_value |
| 3832 octave_stream::scanf (const octave_value& fmt, const Array<double>& size, | |
| 5299 | 3833 octave_idx_type& count, const std::string& who) |
| 5279 | 3834 { |
| 3835 octave_value retval = Matrix (); | |
| 3836 | |
| 3837 if (fmt.is_string ()) | |
| 3838 { | |
| 3839 std::string sfmt = fmt.string_value (); | |
| 3840 | |
| 3841 if (fmt.is_sq_string ()) | |
| 3842 sfmt = do_string_escapes (sfmt); | |
| 3843 | |
| 3844 retval = scanf (sfmt, size, count, who); | |
| 3845 } | |
| 3846 else | |
| 3847 { | |
| 3848 // Note that this is not ::error () ! | |
| 3849 | |
| 3850 error (who + ": format must be a string"); | |
| 3851 } | |
| 3852 | |
| 3853 return retval; | |
| 3854 } | |
| 3855 | |
| 2215 | 3856 octave_value_list |
| 4468 | 3857 octave_stream::oscanf (const std::string& fmt, const std::string& who) |
| 2215 | 3858 { |
| 3859 octave_value_list retval; | |
| 3860 | |
| 5659 | 3861 if (stream_ok ()) |
| 4468 | 3862 retval = rep->oscanf (fmt, who); |
| 2215 | 3863 |
| 3864 return retval; | |
| 3865 } | |
| 3866 | |
| 5279 | 3867 octave_value_list |
| 3868 octave_stream::oscanf (const octave_value& fmt, const std::string& who) | |
| 3869 { | |
| 3870 octave_value_list retval; | |
| 3871 | |
| 3872 if (fmt.is_string ()) | |
| 3873 { | |
| 3874 std::string sfmt = fmt.string_value (); | |
| 3875 | |
| 3876 if (fmt.is_sq_string ()) | |
| 3877 sfmt = do_string_escapes (sfmt); | |
| 3878 | |
| 3879 retval = oscanf (sfmt, who); | |
| 3880 } | |
| 3881 else | |
| 3882 { | |
| 3883 // Note that this is not ::error () ! | |
| 3884 | |
| 3885 error (who + ": format must be a string"); | |
| 3886 } | |
| 3887 | |
| 3888 return retval; | |
| 3889 } | |
| 3890 | |
| 2117 | 3891 int |
| 4468 | 3892 octave_stream::printf (const std::string& fmt, const octave_value_list& args, |
| 3893 const std::string& who) | |
| 2117 | 3894 { |
| 3895 int retval = -1; | |
| 3896 | |
| 5659 | 3897 if (stream_ok ()) |
| 4468 | 3898 retval = rep->printf (fmt, args, who); |
| 2117 | 3899 |
| 3900 return retval; | |
| 3901 } | |
| 3902 | |
| 3903 int | |
| 5279 | 3904 octave_stream::printf (const octave_value& fmt, const octave_value_list& args, |
| 3905 const std::string& who) | |
| 3906 { | |
| 3907 int retval = 0; | |
| 3908 | |
| 3909 if (fmt.is_string ()) | |
| 3910 { | |
| 3911 std::string sfmt = fmt.string_value (); | |
| 3912 | |
| 3913 if (fmt.is_sq_string ()) | |
| 3914 sfmt = do_string_escapes (sfmt); | |
| 3915 | |
| 3916 retval = printf (sfmt, args, who); | |
| 3917 } | |
| 3918 else | |
| 3919 { | |
| 3920 // Note that this is not ::error () ! | |
| 3921 | |
| 3922 error (who + ": format must be a string"); | |
| 3923 } | |
| 3924 | |
| 3925 return retval; | |
| 3926 } | |
| 3927 | |
| 3928 int | |
| 4468 | 3929 octave_stream::puts (const std::string& s, const std::string& who) |
| 2117 | 3930 { |
| 3931 int retval = -1; | |
| 3932 | |
| 5659 | 3933 if (stream_ok ()) |
| 4468 | 3934 retval = rep->puts (s, who); |
| 2117 | 3935 |
| 3936 return retval; | |
| 3937 } | |
| 3938 | |
| 5775 | 3939 // FIXME -- maybe this should work for string arrays too. |
| 2117 | 3940 |
| 3941 int | |
| 4468 | 3942 octave_stream::puts (const octave_value& tc_s, const std::string& who) |
| 2117 | 3943 { |
| 3944 int retval = -1; | |
| 3945 | |
| 3946 if (tc_s.is_string ()) | |
| 3947 { | |
| 3523 | 3948 std::string s = tc_s.string_value (); |
| 5279 | 3949 retval = puts (s, who); |
| 2117 | 3950 } |
| 3951 else | |
| 4468 | 3952 { |
| 3953 // Note that this is not ::error () ! | |
| 3954 | |
| 3955 error (who + ": argument must be a string"); | |
| 3956 } | |
| 2117 | 3957 |
| 3958 return retval; | |
| 3959 } | |
| 3960 | |
| 3961 bool | |
| 3962 octave_stream::eof (void) const | |
| 3963 { | |
| 3964 int retval = -1; | |
| 3965 | |
| 5659 | 3966 if (stream_ok ()) |
| 2117 | 3967 retval = rep->eof (); |
| 3968 | |
| 3969 return retval; | |
| 3970 } | |
| 3971 | |
| 3536 | 3972 std::string |
| 2435 | 3973 octave_stream::error (bool clear, int& err_num) |
| 2117 | 3974 { |
| 5649 | 3975 std::string retval = "invalid stream object"; |
| 3976 | |
| 5659 | 3977 if (stream_ok (false)) |
| 2435 | 3978 retval = rep->error (clear, err_num); |
| 2117 | 3979 |
| 3980 return retval; | |
| 3981 } | |
| 3982 | |
| 3536 | 3983 std::string |
| 3340 | 3984 octave_stream::name (void) const |
| 2117 | 3985 { |
| 3523 | 3986 std::string retval; |
| 2117 | 3987 |
| 5659 | 3988 if (stream_ok ()) |
| 2117 | 3989 retval = rep->name (); |
| 3990 | |
| 3991 return retval; | |
| 3992 } | |
| 3993 | |
| 3994 int | |
| 3340 | 3995 octave_stream::mode (void) const |
| 2117 | 3996 { |
| 3997 int retval = 0; | |
| 3998 | |
| 5659 | 3999 if (stream_ok ()) |
| 2117 | 4000 retval = rep->mode (); |
| 4001 | |
| 4002 return retval; | |
| 4003 } | |
| 4004 | |
| 2317 | 4005 oct_mach_info::float_format |
| 3340 | 4006 octave_stream::float_format (void) const |
| 2117 | 4007 { |
| 4574 | 4008 oct_mach_info::float_format retval = oct_mach_info::flt_fmt_unknown; |
| 2317 | 4009 |
| 5659 | 4010 if (stream_ok ()) |
| 2317 | 4011 retval = rep->float_format (); |
| 2117 | 4012 |
| 4013 return retval; | |
| 4014 } | |
| 4015 | |
| 3536 | 4016 std::string |
| 2117 | 4017 octave_stream::mode_as_string (int mode) |
| 4018 { | |
| 3523 | 4019 std::string retval = "???"; |
| 3775 | 4020 std::ios::openmode in_mode = static_cast<std::ios::openmode> (mode); |
| 4021 | |
| 4022 if (in_mode == std::ios::in) | |
| 4023 retval = "r"; | |
| 4024 else if (in_mode == std::ios::out | |
| 4078 | 4025 || in_mode == (std::ios::out | std::ios::trunc)) |
| 3775 | 4026 retval = "w"; |
| 4078 | 4027 else if (in_mode == (std::ios::out | std::ios::app)) |
| 3775 | 4028 retval = "a"; |
| 4078 | 4029 else if (in_mode == (std::ios::in | std::ios::out)) |
| 3775 | 4030 retval = "r+"; |
| 4078 | 4031 else if (in_mode == (std::ios::in | std::ios::out | std::ios::trunc)) |
| 3775 | 4032 retval = "w+"; |
| 4078 | 4033 else if (in_mode == (std::ios::in | std::ios::out | std::ios::ate)) |
| 3775 | 4034 retval = "a+"; |
| 4078 | 4035 else if (in_mode == (std::ios::in | std::ios::binary)) |
| 3775 | 4036 retval = "rb"; |
| 4078 | 4037 else if (in_mode == (std::ios::out | std::ios::binary) |
| 4038 || in_mode == (std::ios::out | std::ios::trunc | std::ios::binary)) | |
| 3775 | 4039 retval = "wb"; |
| 4078 | 4040 else if (in_mode == (std::ios::out | std::ios::app | std::ios::binary)) |
| 3775 | 4041 retval = "ab"; |
| 4078 | 4042 else if (in_mode == (std::ios::in | std::ios::out | std::ios::binary)) |
| 3775 | 4043 retval = "r+b"; |
| 4078 | 4044 else if (in_mode == (std::ios::in | std::ios::out | std::ios::trunc |
| 4045 | std::ios::binary)) | |
| 3775 | 4046 retval = "w+b"; |
| 4078 | 4047 else if (in_mode == (std::ios::in | std::ios::out | std::ios::ate |
| 4048 | std::ios::binary)) | |
| 3775 | 4049 retval = "a+b"; |
| 2117 | 4050 |
| 4051 return retval; | |
| 4052 } | |
| 4053 | |
| 4054 octave_stream_list *octave_stream_list::instance = 0; | |
| 4055 | |
| 2926 | 4056 bool |
| 4057 octave_stream_list::instance_ok (void) | |
| 4058 { | |
| 4059 bool retval = true; | |
| 4060 | |
| 4061 if (! instance) | |
| 4062 instance = new octave_stream_list (); | |
| 4063 | |
| 4064 if (! instance) | |
| 4065 { | |
| 4066 ::error ("unable to create stream list object!"); | |
| 4067 | |
| 4068 retval = false; | |
| 4069 } | |
| 4070 | |
| 4071 return retval; | |
| 4072 } | |
| 4073 | |
| 5353 | 4074 int |
| 6757 | 4075 octave_stream_list::insert (octave_stream& os) |
| 2926 | 4076 { |
| 5353 | 4077 return (instance_ok ()) ? instance->do_insert (os) : -1; |
| 2926 | 4078 } |
| 4079 | |
| 3340 | 4080 octave_stream |
| 3523 | 4081 octave_stream_list::lookup (int fid, const std::string& who) |
| 2926 | 4082 { |
| 3341 | 4083 return (instance_ok ()) ? instance->do_lookup (fid, who) : octave_stream (); |
| 2926 | 4084 } |
| 4085 | |
| 3340 | 4086 octave_stream |
| 3523 | 4087 octave_stream_list::lookup (const octave_value& fid, const std::string& who) |
| 2926 | 4088 { |
| 3341 | 4089 return (instance_ok ()) ? instance->do_lookup (fid, who) : octave_stream (); |
| 2926 | 4090 } |
| 4091 | |
| 4092 int | |
| 3523 | 4093 octave_stream_list::remove (int fid, const std::string& who) |
| 2926 | 4094 { |
| 3341 | 4095 return (instance_ok ()) ? instance->do_remove (fid, who) : -1; |
| 2926 | 4096 } |
| 4097 | |
| 4098 int | |
| 3523 | 4099 octave_stream_list::remove (const octave_value& fid, const std::string& who) |
| 2926 | 4100 { |
| 3341 | 4101 return (instance_ok ()) ? instance->do_remove (fid, who) : -1; |
| 2926 | 4102 } |
| 4103 | |
| 4104 void | |
|
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diff
changeset
|
4105 octave_stream_list::clear (bool flush) |
| 2926 | 4106 { |
| 4107 if (instance) | |
|
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parents:
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diff
changeset
|
4108 instance->do_clear (flush); |
| 2926 | 4109 } |
| 4110 | |
| 4111 string_vector | |
| 4112 octave_stream_list::get_info (int fid) | |
| 4113 { | |
| 4114 return (instance_ok ()) ? instance->do_get_info (fid) : string_vector (); | |
| 4115 } | |
| 4116 | |
| 4117 string_vector | |
| 4118 octave_stream_list::get_info (const octave_value& fid) | |
| 4119 { | |
| 4120 return (instance_ok ()) ? instance->do_get_info (fid) : string_vector (); | |
| 4121 } | |
| 4122 | |
| 3536 | 4123 std::string |
| 2926 | 4124 octave_stream_list::list_open_files (void) |
| 4125 { | |
| 3523 | 4126 return (instance_ok ()) ? instance->do_list_open_files () : std::string (); |
| 2926 | 4127 } |
| 4128 | |
| 4129 octave_value | |
| 4130 octave_stream_list::open_file_numbers (void) | |
| 4131 { | |
| 4132 return (instance_ok ()) | |
| 4133 ? instance->do_open_file_numbers () : octave_value (); | |
| 4134 } | |
| 4135 | |
| 4136 int | |
| 4137 octave_stream_list::get_file_number (const octave_value& fid) | |
| 4138 { | |
| 4139 return (instance_ok ()) ? instance->do_get_file_number (fid) : -1; | |
| 4140 } | |
| 4141 | |
| 5353 | 4142 int |
| 6757 | 4143 octave_stream_list::do_insert (octave_stream& os) |
| 2117 | 4144 { |
| 6757 | 4145 // Insert item with key corresponding to file-descriptor. |
| 4146 | |
| 4147 int stream_number; | |
| 4148 | |
| 4149 if ((stream_number = os.file_number ()) == -1) | |
| 4150 return stream_number; | |
| 4151 | |
| 4152 // Should we test for "(list.find (stream_number) != list.end ()) && | |
| 4153 // list[stream_number].is_open ()" and respond with "error | |
| 4154 // ("internal error: ...")"? It should not happen except for some | |
| 4155 // bug or if the user has opened a stream with an interpreted | |
| 4156 // command, but closed it directly with a system call in an | |
| 4157 // oct-file; then the kernel knows the fd is free, but Octave does | |
| 4158 // not know. If it happens, it should not do harm here to simply | |
| 4159 // overwrite this entry, although the wrong entry might have done | |
| 4160 // harm before. | |
| 4161 | |
| 4162 if (list.size () < list.max_size ()) | |
| 4163 list[stream_number] = os; | |
| 4164 else | |
| 2117 | 4165 { |
| 6757 | 4166 stream_number = -1; |
| 4167 error ("could not create file id"); | |
| 3340 | 4168 } |
| 2117 | 4169 |
| 5353 | 4170 return stream_number; |
| 6757 | 4171 |
| 2117 | 4172 } |
| 4173 | |
| 3341 | 4174 static void |
| 3523 | 4175 gripe_invalid_file_id (int fid, const std::string& who) |
| 3341 | 4176 { |
| 4177 if (who.empty ()) | |
| 4178 ::error ("invalid stream number = %d", fid); | |
| 4179 else | |
| 4180 ::error ("%s: invalid stream number = %d", who.c_str (), fid); | |
| 4181 } | |
| 4182 | |
| 3340 | 4183 octave_stream |
| 3523 | 4184 octave_stream_list::do_lookup (int fid, const std::string& who) const |
| 2117 | 4185 { |
| 3340 | 4186 octave_stream retval; |
| 2117 | 4187 |
| 6757 | 4188 if (fid >= 0) |
| 4189 { | |
|
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parents:
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diff
changeset
|
4190 if (lookup_cache != list.end () && lookup_cache->first == fid) |
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parents:
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diff
changeset
|
4191 retval = lookup_cache->second; |
| 6757 | 4192 else |
|
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parents:
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diff
changeset
|
4193 { |
|
5d5db7a347c6
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parents:
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diff
changeset
|
4194 ostrl_map::const_iterator iter = list.find (fid); |
|
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diff
changeset
|
4195 |
|
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diff
changeset
|
4196 if (iter != list.end ()) |
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parents:
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diff
changeset
|
4197 { |
|
5d5db7a347c6
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parents:
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diff
changeset
|
4198 retval = iter->second; |
|
5d5db7a347c6
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parents:
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diff
changeset
|
4199 lookup_cache = iter; |
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parents:
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diff
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|
4200 } |
|
5d5db7a347c6
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parents:
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diff
changeset
|
4201 else |
|
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
4202 gripe_invalid_file_id (fid, who); |
|
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
4203 } |
| 6757 | 4204 } |
| 3341 | 4205 else |
| 4206 gripe_invalid_file_id (fid, who); | |
| 2117 | 4207 |
| 4208 return retval; | |
| 4209 } | |
| 4210 | |
| 3340 | 4211 octave_stream |
| 3341 | 4212 octave_stream_list::do_lookup (const octave_value& fid, |
| 3523 | 4213 const std::string& who) const |
| 2117 | 4214 { |
| 3340 | 4215 octave_stream retval; |
| 2117 | 4216 |
| 4217 int i = get_file_number (fid); | |
| 4218 | |
| 4219 if (! error_state) | |
| 3341 | 4220 retval = do_lookup (i, who); |
| 2117 | 4221 |
| 4222 return retval; | |
| 4223 } | |
| 4224 | |
| 4225 int | |
| 3523 | 4226 octave_stream_list::do_remove (int fid, const std::string& who) |
| 2117 | 4227 { |
| 4228 int retval = -1; | |
| 4229 | |
| 3531 | 4230 // Can't remove stdin (std::cin), stdout (std::cout), or stderr |
| 4231 // (std::cerr). | |
| 2117 | 4232 |
| 6757 | 4233 if (fid > 2) |
| 2117 | 4234 { |
| 6757 | 4235 ostrl_map::iterator iter = list.find (fid); |
| 4236 | |
| 4237 if (iter != list.end ()) | |
| 2117 | 4238 { |
| 6757 | 4239 octave_stream os = iter->second; |
|
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parents:
8773
diff
changeset
|
4240 list.erase (iter); |
|
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parents:
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diff
changeset
|
4241 lookup_cache = list.end (); |
|
5d5db7a347c6
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
4242 |
|
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parents:
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diff
changeset
|
4243 // FIXME: is this check redundant? |
| 6757 | 4244 if (os.is_valid ()) |
| 4245 { | |
| 4246 os.close (); | |
| 4247 retval = 0; | |
| 4248 } | |
| 4249 else | |
| 4250 gripe_invalid_file_id (fid, who); | |
| 2117 | 4251 } |
| 3341 | 4252 else |
| 4253 gripe_invalid_file_id (fid, who); | |
| 2117 | 4254 } |
| 3341 | 4255 else |
| 4256 gripe_invalid_file_id (fid, who); | |
| 2117 | 4257 |
| 4258 return retval; | |
| 4259 } | |
| 4260 | |
| 4261 int | |
| 3523 | 4262 octave_stream_list::do_remove (const octave_value& fid, const std::string& who) |
| 2117 | 4263 { |
| 4264 int retval = -1; | |
| 4265 | |
| 6054 | 4266 if (fid.is_string () && fid.string_value () == "all") |
| 4267 { | |
|
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parents:
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diff
changeset
|
4268 do_clear (false); |
| 6054 | 4269 |
| 4270 retval = 0; | |
| 4271 } | |
| 4272 else | |
| 4273 { | |
| 4274 int i = get_file_number (fid); | |
| 4275 | |
| 4276 if (! error_state) | |
| 4277 retval = do_remove (i, who); | |
| 4278 } | |
| 2117 | 4279 |
| 4280 return retval; | |
| 4281 } | |
| 4282 | |
| 4283 void | |
|
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parents:
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diff
changeset
|
4284 octave_stream_list::do_clear (bool flush) |
| 2117 | 4285 { |
|
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
4286 if (flush) |
|
5d5db7a347c6
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
4287 { |
|
5d5db7a347c6
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parents:
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4288 // Do flush stdout and stderr. |
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Jaroslav Hajek <highegg@gmail.com>
parents:
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|
4289 |
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parents:
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4290 list[0].flush (); |
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parents:
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4291 list[1].flush (); |
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Jaroslav Hajek <highegg@gmail.com>
parents:
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4292 } |
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parents:
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4293 |
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Jaroslav Hajek <highegg@gmail.com>
parents:
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4294 octave_stream saved_os[3]; |
| 2117 | 4295 // But don't delete them or stdin. |
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4296 for (ostrl_map::iterator iter = list.begin (); iter != list.end (); iter++) |
| 6757 | 4297 { |
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4298 int fid = iter->first; |
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parents:
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|
4299 octave_stream os = iter->second; |
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parents:
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4300 if (fid < 3) |
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parents:
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|
4301 saved_os[fid] = os; |
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parents:
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|
4302 else if (os.is_valid ()) |
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parents:
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|
4303 os.close (); |
| 6757 | 4304 } |
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4305 list.clear (); |
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parents:
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|
4306 for (int fid = 0; fid < 3; fid++) list[fid] = saved_os[fid]; |
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4307 lookup_cache = list.end (); |
| 2117 | 4308 } |
| 4309 | |
| 4310 string_vector | |
| 4311 octave_stream_list::do_get_info (int fid) const | |
| 4312 { | |
| 4313 string_vector retval; | |
| 4314 | |
| 3340 | 4315 octave_stream os = do_lookup (fid); |
| 2117 | 4316 |
| 3341 | 4317 if (os.is_valid ()) |
| 2117 | 4318 { |
| 4319 retval.resize (3); | |
| 4320 | |
| 3340 | 4321 retval(0) = os.name (); |
| 4322 retval(1) = octave_stream::mode_as_string (os.mode ()); | |
| 4323 retval(2) = oct_mach_info::float_format_as_string (os.float_format ()); | |
| 2117 | 4324 } |
| 4325 else | |
| 3341 | 4326 ::error ("invalid file id = %d", fid); |
| 2117 | 4327 |
| 4328 return retval; | |
| 4329 } | |
| 4330 | |
| 4331 string_vector | |
| 4332 octave_stream_list::do_get_info (const octave_value& fid) const | |
| 4333 { | |
| 4334 string_vector retval; | |
| 4335 | |
| 4336 int conv_err = 0; | |
| 4337 | |
| 4338 int int_fid = convert_to_valid_int (fid, conv_err); | |
| 4339 | |
| 4340 if (! conv_err) | |
| 4341 retval = do_get_info (int_fid); | |
| 4342 else | |
| 2915 | 4343 ::error ("file id must be a file object or integer value"); |
| 2117 | 4344 |
| 4345 return retval; | |
| 4346 } | |
| 4347 | |
| 3536 | 4348 std::string |
| 2117 | 4349 octave_stream_list::do_list_open_files (void) const |
| 4350 { | |
| 3523 | 4351 std::string retval; |
| 2117 | 4352 |
| 5765 | 4353 std::ostringstream buf; |
| 2117 | 4354 |
| 4355 buf << "\n" | |
| 4356 << " number mode arch name\n" | |
| 4357 << " ------ ---- ---- ----\n"; | |
| 4358 | |
| 6757 | 4359 for (ostrl_map::const_iterator p = list.begin (); p != list.end (); p++) |
| 2117 | 4360 { |
| 6757 | 4361 octave_stream os = p->second; |
| 2117 | 4362 |
| 4326 | 4363 buf << " " |
| 4364 << std::setiosflags (std::ios::right) | |
| 6757 | 4365 << std::setw (4) << p->first << " " |
| 4326 | 4366 << std::setiosflags (std::ios::left) |
| 4367 << std::setw (3) | |
| 4368 << octave_stream::mode_as_string (os.mode ()) | |
| 4369 << " " | |
| 4370 << std::setw (9) | |
| 4371 << oct_mach_info::float_format_as_string (os.float_format ()) | |
| 4372 << " " | |
| 4373 << os.name () << "\n"; | |
| 2117 | 4374 } |
| 4375 | |
| 5765 | 4376 buf << "\n"; |
| 4377 | |
| 4378 retval = buf.str (); | |
| 2117 | 4379 |
| 4380 return retval; | |
| 4381 } | |
| 4382 | |
| 4383 octave_value | |
| 4384 octave_stream_list::do_open_file_numbers (void) const | |
| 4385 { | |
| 6757 | 4386 Matrix retval (1, list.size (), 0.0); |
| 2117 | 4387 |
| 4388 int num_open = 0; | |
| 4389 | |
| 6757 | 4390 for (ostrl_map::const_iterator p = list.begin (); p != list.end (); p++) |
| 2117 | 4391 { |
| 6757 | 4392 // Skip stdin, stdout, and stderr. |
| 4393 | |
| 4394 if (p->first > 2 && p->second) | |
| 4395 retval(0,num_open++) = p->first; | |
| 2117 | 4396 } |
| 4397 | |
| 4398 retval.resize ((num_open > 0), num_open); | |
| 4399 | |
| 4400 return retval; | |
| 4401 } | |
| 4402 | |
| 4403 int | |
| 2609 | 4404 octave_stream_list::do_get_file_number (const octave_value& fid) const |
| 2117 | 4405 { |
| 4406 int retval = -1; | |
| 4407 | |
| 4408 if (fid.is_string ()) | |
| 4409 { | |
| 3523 | 4410 std::string nm = fid.string_value (); |
| 2117 | 4411 |
| 6757 | 4412 for (ostrl_map::const_iterator p = list.begin (); p != list.end (); p++) |
| 2117 | 4413 { |
| 6757 | 4414 // stdin (std::cin), stdout (std::cout), and stderr (std::cerr) |
| 4415 // are unnamed. | |
| 4416 | |
| 4417 if (p->first > 2) | |
| 2117 | 4418 { |
| 6757 | 4419 octave_stream os = p->second; |
| 4420 | |
| 4421 if (os && os.name () == nm) | |
| 4422 { | |
| 4423 retval = p->first; | |
| 4424 break; | |
| 4425 } | |
| 2117 | 4426 } |
| 4427 } | |
| 4428 } | |
| 4429 else | |
| 4430 { | |
| 4431 int conv_err = 0; | |
| 4432 | |
| 4433 int int_fid = convert_to_valid_int (fid, conv_err); | |
| 4434 | |
| 4435 if (conv_err) | |
| 3523 | 4436 ::error ("file id must be a file object, std::string, or integer value"); |
| 2117 | 4437 else |
| 4438 retval = int_fid; | |
| 4439 } | |
| 4440 | |
| 4441 return retval; | |
| 4442 } | |
| 4443 | |
| 4444 /* | |
| 4445 ;;; Local Variables: *** | |
| 4446 ;;; mode: C++ *** | |
| 4447 ;;; End: *** | |
| 4448 */ |