Mercurial > octave-nkf
annotate src/oct-stream.cc @ 10187:a44d15813a39
don't skip literal text elements in scanf formats
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Fri, 22 Jan 2010 12:12:21 -0500 |
| parents | cd96d29c5efa |
| children | e317791645c4 |
| 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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29 #include <cctype> |
| 2215 | 30 #include <cstring> |
| 31 | |
| 3503 | 32 #include <iomanip> |
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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 { | |
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160 octave_idx_type num_elts = 0; |
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161 |
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162 size_t n = s.length (); |
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163 |
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164 size_t i = 0; |
| 2117 | 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); | |
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parents:
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diff
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186 |
| 2117 | 187 have_more = (buf != 0); |
| 188 } | |
| 3483 | 189 else if (isspace (s[i])) |
| 2117 | 190 { |
| 3483 | 191 type = scanf_format_elt::whitespace_conversion; |
| 192 | |
| 2215 | 193 width = 0; |
| 2117 | 194 discard = false; |
| 195 modifier = '\0'; | |
| 3483 | 196 *buf << " "; |
| 197 | |
| 198 while (++i < n && isspace (s[i])) | |
| 199 /* skip whitespace */; | |
| 200 | |
| 201 add_elt_to_list (width, discard, type, modifier, num_elts); | |
| 202 | |
| 203 have_more = false; | |
| 204 } | |
| 205 else | |
| 206 { | |
| 207 type = scanf_format_elt::literal_conversion; | |
| 208 | |
| 209 width = 0; | |
| 210 discard = false; | |
| 211 modifier = '\0'; | |
| 212 | |
| 213 while (i < n && ! isspace (s[i]) && s[i] != '%') | |
| 214 *buf << s[i++]; | |
| 215 | |
| 216 add_elt_to_list (width, discard, type, modifier, num_elts); | |
| 217 | |
| 218 have_more = false; | |
| 2117 | 219 } |
| 220 | |
| 221 if (nconv < 0) | |
| 222 { | |
| 223 have_more = false; | |
| 224 break; | |
| 225 } | |
| 226 } | |
| 227 | |
| 228 if (have_more) | |
| 2215 | 229 add_elt_to_list (width, discard, type, modifier, num_elts); |
| 2117 | 230 |
| 231 list.resize (num_elts); | |
| 232 | |
| 233 delete buf; | |
| 234 } | |
| 235 | |
| 236 scanf_format_list::~scanf_format_list (void) | |
| 237 { | |
| 5275 | 238 octave_idx_type n = list.length (); |
| 239 | |
| 240 for (octave_idx_type i = 0; i < n; i++) | |
| 2117 | 241 { |
| 3340 | 242 scanf_format_elt *elt = list(i); |
| 2117 | 243 delete elt; |
| 244 } | |
| 245 } | |
| 246 | |
| 247 void | |
| 2215 | 248 scanf_format_list::add_elt_to_list (int width, bool discard, char type, |
| 3483 | 249 char modifier, int& num_elts, |
| 3523 | 250 const std::string& char_class) |
| 2117 | 251 { |
| 252 if (buf) | |
| 253 { | |
| 5765 | 254 std::string text = buf->str (); |
| 4051 | 255 |
| 256 if (! text.empty ()) | |
| 2117 | 257 { |
| 4051 | 258 scanf_format_elt *elt |
| 259 = new scanf_format_elt (text.c_str (), width, discard, type, | |
| 260 modifier, char_class); | |
| 261 | |
| 262 if (num_elts == list.length ()) | |
| 263 list.resize (2 * num_elts); | |
| 264 | |
| 265 list(num_elts++) = elt; | |
| 2117 | 266 } |
| 267 | |
| 268 delete buf; | |
| 269 buf = 0; | |
| 270 } | |
| 271 } | |
| 272 | |
| 3535 | 273 static std::string |
| 3523 | 274 expand_char_class (const std::string& s) |
| 3483 | 275 { |
| 3523 | 276 std::string retval; |
| 3483 | 277 |
| 278 size_t len = s.length (); | |
| 279 | |
| 280 size_t i = 0; | |
| 281 | |
| 282 while (i < len) | |
| 283 { | |
| 284 unsigned char c = s[i++]; | |
| 285 | |
| 286 if (c == '-' && i > 1 && i < len | |
| 5760 | 287 && static_cast<unsigned char> (s[i-2]) <= static_cast<unsigned char> (s[i])) |
| 3483 | 288 { |
| 289 // Add all characters from the range except the first (we | |
| 290 // already added it below). | |
| 291 | |
| 292 for (c = s[i-2]+1; c < s[i]; c++) | |
| 293 retval += c; | |
| 294 } | |
| 295 else | |
| 296 { | |
| 297 // Add the character to the class. Only add '-' if it is | |
| 298 // the last character in the class. | |
| 299 | |
| 300 if (c != '-' || i == len) | |
| 301 retval += c; | |
| 302 } | |
| 303 } | |
| 304 | |
| 305 return retval; | |
| 306 } | |
| 307 | |
| 2117 | 308 void |
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309 scanf_format_list::process_conversion (const std::string& s, size_t& i, |
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310 size_t n, int& width, bool& discard, |
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311 char& type, char& modifier, |
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312 octave_idx_type& num_elts) |
| 2117 | 313 { |
| 2215 | 314 width = 0; |
| 2117 | 315 discard = false; |
| 316 modifier = '\0'; | |
| 317 type = '\0'; | |
| 318 | |
| 319 *buf << s[i++]; | |
| 320 | |
| 321 bool have_width = false; | |
| 322 | |
| 323 while (i < n) | |
| 324 { | |
| 325 switch (s[i]) | |
| 326 { | |
| 327 case '*': | |
| 328 if (discard) | |
| 329 nconv = -1; | |
| 330 else | |
| 331 { | |
| 332 discard = true; | |
| 333 *buf << s[i++]; | |
| 334 } | |
| 335 break; | |
| 336 | |
| 337 case '0': case '1': case '2': case '3': case '4': | |
| 338 case '5': case '6': case '7': case '8': case '9': | |
| 339 if (have_width) | |
| 340 nconv = -1; | |
| 341 else | |
| 342 { | |
| 2215 | 343 char c = s[i++]; |
| 344 width = width * 10 + c - '0'; | |
| 2117 | 345 have_width = true; |
| 2215 | 346 *buf << c; |
| 2117 | 347 while (i < n && isdigit (s[i])) |
| 2215 | 348 { |
| 349 c = s[i++]; | |
| 350 width = width * 10 + c - '0'; | |
| 351 *buf << c; | |
| 352 } | |
| 2117 | 353 } |
| 354 break; | |
| 355 | |
| 356 case 'h': case 'l': case 'L': | |
| 357 if (modifier != '\0') | |
| 358 nconv = -1; | |
| 359 else | |
| 2663 | 360 modifier = s[i++]; |
| 2117 | 361 break; |
| 362 | |
| 363 case 'd': case 'i': case 'o': case 'u': case 'x': | |
| 364 if (modifier == 'L') | |
| 365 { | |
| 366 nconv = -1; | |
| 367 break; | |
| 368 } | |
| 369 goto fini; | |
| 370 | |
| 371 case 'e': case 'f': case 'g': | |
| 372 if (modifier == 'h') | |
| 373 { | |
| 374 nconv = -1; | |
| 375 break; | |
| 376 } | |
| 2663 | 377 |
| 378 // No float or long double conversions, thanks. | |
| 379 *buf << 'l'; | |
| 380 | |
| 2117 | 381 goto fini; |
| 382 | |
| 383 case 'c': case 's': case 'p': case '%': case '[': | |
| 384 if (modifier != '\0') | |
| 385 { | |
| 386 nconv = -1; | |
| 387 break; | |
| 388 } | |
| 389 goto fini; | |
| 390 | |
| 391 fini: | |
| 392 { | |
| 2215 | 393 if (finish_conversion (s, i, n, width, discard, type, |
| 2117 | 394 modifier, num_elts) == 0) |
| 395 return; | |
| 396 } | |
| 397 break; | |
| 398 | |
| 399 default: | |
| 400 nconv = -1; | |
| 401 break; | |
| 402 } | |
| 403 | |
| 404 if (nconv < 0) | |
| 405 break; | |
| 406 } | |
| 407 | |
| 408 nconv = -1; | |
| 409 } | |
| 410 | |
| 411 int | |
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412 scanf_format_list::finish_conversion (const std::string& s, size_t& i, |
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413 size_t n, int& width, bool discard, |
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414 char& type, char modifier, |
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415 octave_idx_type& num_elts) |
| 2117 | 416 { |
| 417 int retval = 0; | |
| 418 | |
| 3523 | 419 std::string char_class; |
| 3483 | 420 |
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421 size_t beg_idx = std::string::npos; |
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422 size_t end_idx = std::string::npos; |
| 3640 | 423 |
| 2117 | 424 if (s[i] == '%') |
| 3640 | 425 { |
| 426 type = '%'; | |
| 427 *buf << s[i++]; | |
| 428 } | |
| 2117 | 429 else |
| 430 { | |
| 431 type = s[i]; | |
| 432 | |
| 433 if (s[i] == '[') | |
| 434 { | |
| 435 *buf << s[i++]; | |
| 436 | |
| 437 if (i < n) | |
| 438 { | |
| 3483 | 439 beg_idx = i; |
| 440 | |
| 2117 | 441 if (s[i] == '^') |
| 442 { | |
| 443 type = '^'; | |
| 444 *buf << s[i++]; | |
| 3483 | 445 |
| 446 if (i < n) | |
| 447 { | |
| 448 beg_idx = i; | |
| 449 | |
| 450 if (s[i] == ']') | |
| 451 *buf << s[i++]; | |
| 452 } | |
| 2117 | 453 } |
| 454 else if (s[i] == ']') | |
| 455 *buf << s[i++]; | |
| 456 } | |
| 457 | |
| 458 while (i < n && s[i] != ']') | |
| 459 *buf << s[i++]; | |
| 460 | |
| 461 if (i < n && s[i] == ']') | |
| 3483 | 462 { |
| 463 end_idx = i-1; | |
| 464 *buf << s[i++]; | |
| 465 } | |
| 2117 | 466 |
| 467 if (s[i-1] != ']') | |
| 468 retval = nconv = -1; | |
| 469 } | |
| 470 else | |
| 2215 | 471 *buf << s[i++]; |
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472 |
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473 nconv++; |
| 3640 | 474 } |
| 475 | |
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476 if (nconv >= 0) |
| 3640 | 477 { |
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478 if (beg_idx != std::string::npos && end_idx != std::string::npos) |
| 3640 | 479 char_class = expand_char_class (s.substr (beg_idx, |
| 480 end_idx - beg_idx + 1)); | |
| 481 | |
| 482 add_elt_to_list (width, discard, type, modifier, num_elts, char_class); | |
| 2117 | 483 } |
| 484 | |
| 485 return retval; | |
| 486 } | |
| 487 | |
| 488 void | |
| 489 scanf_format_list::printme (void) const | |
| 490 { | |
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491 octave_idx_type n = list.length (); |
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492 |
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493 for (octave_idx_type i = 0; i < n; i++) |
| 2117 | 494 { |
| 3340 | 495 scanf_format_elt *elt = list(i); |
| 2117 | 496 |
| 3531 | 497 std::cerr |
| 498 << "width: " << elt->width << "\n" | |
| 499 << "discard: " << elt->discard << "\n" | |
| 500 << "type: "; | |
| 3483 | 501 |
| 502 if (elt->type == scanf_format_elt::literal_conversion) | |
| 3531 | 503 std::cerr << "literal text\n"; |
| 3483 | 504 else if (elt->type == scanf_format_elt::whitespace_conversion) |
| 3531 | 505 std::cerr << "whitespace\n"; |
| 3483 | 506 else |
| 3531 | 507 std::cerr << elt->type << "\n"; |
| 508 | |
| 509 std::cerr | |
| 510 << "modifier: " << elt->modifier << "\n" | |
| 511 << "char_class: `" << undo_string_escapes (elt->char_class) << "'\n" | |
| 512 << "text: `" << undo_string_escapes (elt->text) << "'\n\n"; | |
| 2117 | 513 } |
| 514 } | |
| 515 | |
| 516 bool | |
| 517 scanf_format_list::all_character_conversions (void) | |
| 518 { | |
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519 octave_idx_type n = list.length (); |
| 2117 | 520 |
| 521 if (n > 0) | |
| 522 { | |
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diff
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523 for (octave_idx_type i = 0; i < n; i++) |
| 2117 | 524 { |
| 3340 | 525 scanf_format_elt *elt = list(i); |
| 2117 | 526 |
| 527 switch (elt->type) | |
| 528 { | |
| 3483 | 529 case 'c': case 's': case '%': case '[': case '^': |
| 530 case scanf_format_elt::literal_conversion: | |
| 531 case scanf_format_elt::whitespace_conversion: | |
| 2117 | 532 break; |
| 533 | |
| 534 default: | |
| 535 return false; | |
| 536 break; | |
| 537 } | |
| 538 } | |
| 539 | |
| 540 return true; | |
| 541 } | |
| 542 else | |
| 543 return false; | |
| 544 } | |
| 545 | |
| 546 bool | |
| 547 scanf_format_list::all_numeric_conversions (void) | |
| 548 { | |
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549 octave_idx_type n = list.length (); |
| 2117 | 550 |
| 551 if (n > 0) | |
| 552 { | |
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553 for (octave_idx_type i = 0; i < n; i++) |
| 2117 | 554 { |
| 3340 | 555 scanf_format_elt *elt = list(i); |
| 2117 | 556 |
| 557 switch (elt->type) | |
| 558 { | |
| 559 case 'd': case 'i': case 'o': case 'u': case 'x': | |
| 560 case 'e': case 'f': case 'g': | |
| 561 break; | |
| 562 | |
| 563 default: | |
| 564 return false; | |
| 565 break; | |
| 566 } | |
| 567 } | |
| 568 | |
| 569 return true; | |
| 570 } | |
| 571 else | |
| 572 return false; | |
| 573 } | |
| 574 | |
| 575 // Ugh again. | |
| 576 | |
| 3523 | 577 printf_format_list::printf_format_list (const std::string& s) |
| 2117 | 578 : nconv (0), curr_idx (0), list (16), buf (0) |
| 579 { | |
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580 octave_idx_type num_elts = 0; |
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581 |
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582 size_t n = s.length (); |
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583 |
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584 size_t i = 0; |
| 2117 | 585 |
| 586 int args = 0; | |
| 3643 | 587 std::string flags; |
| 3640 | 588 int fw = 0; |
| 589 int prec = 0; | |
| 2117 | 590 char modifier = '\0'; |
| 591 char type = '\0'; | |
| 592 | |
| 593 bool have_more = true; | |
| 3640 | 594 bool empty_buf = true; |
| 2117 | 595 |
| 4223 | 596 if (n == 0) |
| 2117 | 597 { |
| 4223 | 598 printf_format_elt *elt |
| 599 = new printf_format_elt ("", args, fw, prec, flags, type, modifier); | |
| 600 | |
| 601 list(num_elts++) = elt; | |
| 602 | |
| 603 list.resize (num_elts); | |
| 604 } | |
| 605 else | |
| 606 { | |
| 607 while (i < n) | |
| 3640 | 608 { |
| 4223 | 609 have_more = true; |
| 610 | |
| 611 if (! buf) | |
| 612 { | |
| 5765 | 613 buf = new std::ostringstream (); |
| 4223 | 614 empty_buf = true; |
| 615 } | |
| 616 | |
| 617 switch (s[i]) | |
| 618 { | |
| 619 case '%': | |
| 3640 | 620 { |
| 4223 | 621 if (empty_buf) |
| 622 { | |
| 623 process_conversion (s, i, n, args, flags, fw, prec, | |
| 624 type, modifier, num_elts); | |
| 625 | |
| 626 have_more = (buf != 0); | |
| 627 } | |
| 628 else | |
| 629 add_elt_to_list (args, flags, fw, prec, type, modifier, | |
| 630 num_elts); | |
| 3640 | 631 } |
| 4223 | 632 break; |
| 633 | |
| 634 default: | |
| 635 { | |
| 636 args = 0; | |
| 637 flags = ""; | |
| 638 fw = 0; | |
| 639 prec = 0; | |
| 640 modifier = '\0'; | |
| 641 type = '\0'; | |
| 642 *buf << s[i++]; | |
| 643 empty_buf = false; | |
| 644 } | |
| 645 break; | |
| 646 } | |
| 647 | |
| 648 if (nconv < 0) | |
| 649 { | |
| 650 have_more = false; | |
| 651 break; | |
| 652 } | |
| 2117 | 653 } |
| 654 | |
| 4223 | 655 if (have_more) |
| 656 add_elt_to_list (args, flags, fw, prec, type, modifier, num_elts); | |
| 657 | |
| 658 list.resize (num_elts); | |
| 659 | |
| 660 delete buf; | |
| 2117 | 661 } |
| 662 } | |
| 663 | |
| 664 printf_format_list::~printf_format_list (void) | |
| 665 { | |
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666 octave_idx_type n = list.length (); |
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667 |
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668 for (octave_idx_type i = 0; i < n; i++) |
| 2117 | 669 { |
| 3340 | 670 printf_format_elt *elt = list(i); |
| 2117 | 671 delete elt; |
| 672 } | |
| 673 } | |
| 674 | |
| 675 void | |
| 3640 | 676 printf_format_list::add_elt_to_list (int args, const std::string& flags, |
| 677 int fw, int prec, char type, | |
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678 char modifier, octave_idx_type& num_elts) |
| 2117 | 679 { |
| 680 if (buf) | |
| 681 { | |
| 5765 | 682 std::string text = buf->str (); |
| 4051 | 683 |
| 684 if (! text.empty ()) | |
| 2117 | 685 { |
| 4051 | 686 printf_format_elt *elt |
| 687 = new printf_format_elt (text.c_str (), args, fw, prec, flags, | |
| 688 type, modifier); | |
| 689 | |
| 690 if (num_elts == list.length ()) | |
| 691 list.resize (2 * num_elts); | |
| 692 | |
| 693 list(num_elts++) = elt; | |
| 2117 | 694 } |
| 695 | |
| 696 delete buf; | |
| 697 buf = 0; | |
| 698 } | |
| 699 } | |
| 700 | |
| 701 void | |
| 3640 | 702 printf_format_list::process_conversion |
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703 (const std::string& s, size_t& i, size_t n, int& args, std::string& flags, |
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704 int& fw, int& prec, char& modifier, char& type, octave_idx_type& num_elts) |
| 2117 | 705 { |
| 706 args = 0; | |
| 3640 | 707 flags = ""; |
| 708 fw = 0; | |
| 709 prec = 0; | |
| 2117 | 710 modifier = '\0'; |
| 711 type = '\0'; | |
| 712 | |
| 713 *buf << s[i++]; | |
| 714 | |
| 4587 | 715 bool nxt = false; |
| 2117 | 716 |
| 717 while (i < n) | |
| 718 { | |
| 719 switch (s[i]) | |
| 720 { | |
| 721 case '-': case '+': case ' ': case '0': case '#': | |
| 3640 | 722 flags += s[i]; |
| 2117 | 723 *buf << s[i++]; |
| 724 break; | |
| 725 | |
| 726 default: | |
| 4587 | 727 nxt = true; |
| 2117 | 728 break; |
| 729 } | |
| 730 | |
| 4587 | 731 if (nxt) |
| 2117 | 732 break; |
| 733 } | |
| 734 | |
| 735 if (i < n) | |
| 736 { | |
| 737 if (s[i] == '*') | |
| 738 { | |
| 3640 | 739 fw = -1; |
| 2117 | 740 args++; |
| 741 *buf << s[i++]; | |
| 742 } | |
| 743 else | |
| 744 { | |
| 3640 | 745 if (isdigit (s[i])) |
| 746 { | |
| 4587 | 747 int nn = 0; |
| 3643 | 748 std::string tmp = s.substr (i); |
| 4587 | 749 sscanf (tmp.c_str (), "%d%n", &fw, &nn); |
| 3640 | 750 } |
| 751 | |
| 2117 | 752 while (i < n && isdigit (s[i])) |
| 753 *buf << s[i++]; | |
| 754 } | |
| 755 } | |
| 756 | |
| 757 if (i < n && s[i] == '.') | |
| 758 { | |
| 759 *buf << s[i++]; | |
| 760 | |
| 761 if (i < n) | |
| 762 { | |
| 763 if (s[i] == '*') | |
| 764 { | |
| 3640 | 765 prec = -1; |
| 2117 | 766 args++; |
| 767 *buf << s[i++]; | |
| 768 } | |
| 769 else | |
| 770 { | |
| 3640 | 771 if (isdigit (s[i])) |
| 772 { | |
| 4587 | 773 int nn = 0; |
| 3643 | 774 std::string tmp = s.substr (i); |
| 4587 | 775 sscanf (tmp.c_str (), "%d%n", &prec, &nn); |
| 3640 | 776 } |
| 777 | |
| 2117 | 778 while (i < n && isdigit (s[i])) |
| 779 *buf << s[i++]; | |
| 780 } | |
| 781 } | |
| 782 } | |
| 783 | |
| 784 if (i < n) | |
| 785 { | |
| 786 switch (s[i]) | |
| 787 { | |
| 788 case 'h': case 'l': case 'L': | |
| 789 modifier = s[i]; | |
| 790 *buf << s[i++]; | |
| 791 break; | |
| 792 | |
| 793 default: | |
| 794 break; | |
| 795 } | |
| 796 } | |
| 797 | |
| 798 if (i < n) | |
| 3640 | 799 finish_conversion (s, i, args, flags, fw, prec, modifier, type, num_elts); |
| 2117 | 800 else |
| 801 nconv = -1; | |
| 802 } | |
| 803 | |
| 804 void | |
| 3640 | 805 printf_format_list::finish_conversion |
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806 (const std::string& s, size_t& i, int args, const std::string& flags, |
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807 int fw, int prec, char modifier, char& type, octave_idx_type& num_elts) |
| 2117 | 808 |
| 809 { | |
| 810 switch (s[i]) | |
| 811 { | |
| 812 case 'd': case 'i': case 'o': case 'x': case 'X': | |
| 813 case 'u': case 'c': | |
| 814 if (modifier == 'L') | |
| 815 { | |
| 816 nconv = -1; | |
| 817 break; | |
| 818 } | |
| 819 goto fini; | |
| 820 | |
| 821 case 'f': case 'e': case 'E': case 'g': case 'G': | |
| 822 if (modifier == 'h' || modifier == 'l') | |
| 823 { | |
| 824 nconv = -1; | |
| 825 break; | |
| 826 } | |
| 827 goto fini; | |
| 828 | |
| 829 case 's': case 'p': case '%': | |
| 830 if (modifier != '\0') | |
| 831 { | |
| 832 nconv = -1; | |
| 833 break; | |
| 834 } | |
| 835 goto fini; | |
| 836 | |
| 837 fini: | |
| 838 | |
| 3640 | 839 type = s[i]; |
| 840 | |
| 841 *buf << s[i++]; | |
| 842 | |
| 843 if (type != '%' || args != 0) | |
| 844 nconv++; | |
| 845 | |
| 846 if (type != '%') | |
| 847 args++; | |
| 848 | |
| 849 add_elt_to_list (args, flags, fw, prec, type, modifier, num_elts); | |
| 850 | |
| 2117 | 851 break; |
| 852 | |
| 853 default: | |
| 854 nconv = -1; | |
| 855 break; | |
| 856 } | |
| 857 } | |
| 858 | |
| 859 void | |
| 860 printf_format_list::printme (void) const | |
| 861 { | |
| 862 int n = list.length (); | |
| 863 | |
| 864 for (int i = 0; i < n; i++) | |
| 865 { | |
| 3340 | 866 printf_format_elt *elt = list(i); |
| 2117 | 867 |
| 3640 | 868 std::cerr |
| 869 << "args: " << elt->args << "\n" | |
| 870 << "flags: `" << elt->flags << "'\n" | |
| 871 << "width: " << elt->fw << "\n" | |
| 872 << "prec: " << elt->prec << "\n" | |
| 873 << "type: `" << elt->type << "'\n" | |
| 874 << "modifier: `" << elt->modifier << "'\n" | |
| 875 << "text: `" << undo_string_escapes (elt->text) << "'\n\n"; | |
| 2117 | 876 } |
| 877 } | |
| 878 | |
| 3145 | 879 int |
| 3148 | 880 octave_base_stream::file_number (void) |
| 3145 | 881 { |
| 882 // Kluge alert! | |
| 883 | |
| 884 if (name () == "stdin") | |
| 885 return 0; | |
| 886 | |
| 887 if (name () == "stdout") | |
| 888 return 1; | |
| 889 | |
| 890 if (name () == "stderr") | |
| 891 return 2; | |
| 892 | |
| 893 int retval = -1; | |
| 894 | |
| 3523 | 895 std::istream *is = input_stream (); |
| 896 std::ostream *os = output_stream (); | |
| 3145 | 897 |
| 3775 | 898 // There is no standard way to get the underlying file descriptor from |
| 899 // std::filebuf (nor in the GNU libstdc++-v3 implementation). We cache | |
| 900 // the descriptor in c_file_ptr_buf, and then extract it here. | |
| 901 | |
| 6757 | 902 c_file_ptr_buf *ibuf |
| 903 = is ? dynamic_cast<c_file_ptr_buf *> (is->rdbuf ()) : 0; | |
| 904 | |
| 905 c_file_ptr_buf *obuf | |
| 906 = os ? dynamic_cast<c_file_ptr_buf *> (os->rdbuf ()) : 0; | |
| 3775 | 907 |
| 908 int i_fid = ibuf ? ibuf->file_number () : -1; | |
| 909 int o_fid = obuf ? obuf->file_number () : -1; | |
| 3145 | 910 |
| 911 if (i_fid >= 0) | |
| 912 { | |
| 913 if (o_fid >= 0) | |
| 914 retval = (i_fid == o_fid) ? i_fid : -1; | |
| 915 else | |
| 916 retval = i_fid; | |
| 917 } | |
| 918 else if (o_fid >= 0) | |
| 919 retval = o_fid; | |
| 920 | |
| 921 return retval; | |
| 922 } | |
| 923 | |
| 2117 | 924 void |
| 3523 | 925 octave_base_stream::error (const std::string& msg) |
| 2117 | 926 { |
| 927 fail = true; | |
| 928 errmsg = msg; | |
| 929 } | |
| 930 | |
| 931 void | |
| 4468 | 932 octave_base_stream::error (const std::string& who, const std::string& msg) |
| 933 { | |
| 934 fail = true; | |
| 6296 | 935 errmsg = who + ": " + msg; |
| 4468 | 936 } |
| 937 | |
| 938 void | |
| 2117 | 939 octave_base_stream::clear (void) |
| 940 { | |
| 4889 | 941 fail = false; |
| 942 errmsg = ""; | |
| 943 } | |
| 944 | |
| 945 void | |
| 946 octave_base_stream::clearerr (void) | |
| 947 { | |
| 4888 | 948 std::istream *is = input_stream (); |
| 949 std::ostream *os = output_stream (); | |
| 950 | |
| 951 if (is) | |
| 952 is->clear (); | |
| 953 | |
| 954 if (os) | |
| 955 os->clear (); | |
| 2117 | 956 } |
| 957 | |
| 958 // Functions that are defined for all input streams (input streams | |
| 959 // are those that define is). | |
| 960 | |
| 3536 | 961 std::string |
| 5275 | 962 octave_base_stream::do_gets (octave_idx_type max_len, bool& err, |
| 4468 | 963 bool strip_newline, const std::string& who) |
| 2117 | 964 { |
| 3523 | 965 std::string retval; |
| 2117 | 966 |
|
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967 if ((interactive || forced_interactive) && file_number () == 0) |
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968 { |
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969 ::error ("%s: unable to read from stdin while running interactively", |
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970 who.c_str ()); |
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971 |
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972 return retval; |
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973 } |
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974 |
| 2117 | 975 err = false; |
| 976 | |
| 3523 | 977 std::istream *isp = input_stream (); |
| 2117 | 978 |
| 979 if (isp) | |
| 980 { | |
| 3523 | 981 std::istream& is = *isp; |
| 2117 | 982 |
| 5765 | 983 std::ostringstream buf; |
| 2117 | 984 |
| 985 int c = 0; | |
| 3553 | 986 int char_count = 0; |
| 6345 | 987 |
| 988 if (max_len != 0) | |
| 2117 | 989 { |
| 6345 | 990 while (is && (c = is.get ()) != EOF) |
| 2117 | 991 { |
| 6345 | 992 char_count++; |
| 993 | |
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994 // Handle CRLF, CR, or LF as line ending. |
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995 |
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996 if (c == '\r') |
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997 { |
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998 if (! strip_newline) |
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999 buf << static_cast<char> (c); |
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1000 |
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1001 c = is.get (); |
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1002 |
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1003 if (c != EOF) |
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1004 { |
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1005 if (c == '\n') |
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1006 { |
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1007 char_count++; |
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1008 |
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1009 if (! strip_newline) |
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1010 buf << static_cast<char> (c); |
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1011 } |
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1012 else |
|
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1013 is.putback (c); |
|
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1014 } |
|
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1015 |
|
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1016 break; |
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1017 } |
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1018 else if (c == '\n') |
| 6345 | 1019 { |
| 1020 if (! strip_newline) | |
| 1021 buf << static_cast<char> (c); | |
| 1022 | |
| 1023 break; | |
| 1024 } | |
| 1025 else | |
| 5760 | 1026 buf << static_cast<char> (c); |
| 6345 | 1027 |
| 1028 if (max_len > 0 && char_count == max_len) | |
| 1029 break; | |
| 2117 | 1030 } |
| 6345 | 1031 } |
| 1032 | |
| 1033 if (! is.eof () && char_count > 0) | |
| 1034 { | |
| 1035 // GAGME. Matlab seems to check for EOF even if the last | |
| 1036 // character in a file is a newline character. This is NOT | |
| 1037 // what the corresponding C-library functions do. | |
| 1038 int disgusting_compatibility_hack = is.get (); | |
| 1039 if (! is.eof ()) | |
| 1040 is.putback (disgusting_compatibility_hack); | |
| 2117 | 1041 } |
| 1042 | |
| 4224 | 1043 if (is.good () || (is.eof () && char_count > 0)) |
| 5765 | 1044 retval = buf.str (); |
| 4224 | 1045 else |
| 1046 { | |
| 1047 err = true; | |
| 4468 | 1048 |
| 4224 | 1049 if (is.eof () && char_count == 0) |
| 4468 | 1050 error (who, "at end of file"); |
| 4224 | 1051 else |
| 4468 | 1052 error (who, "read error"); |
| 4224 | 1053 } |
| 2117 | 1054 } |
| 1055 else | |
| 1056 { | |
| 1057 err = true; | |
| 4468 | 1058 invalid_operation (who, "reading"); |
| 2117 | 1059 } |
| 1060 | |
| 1061 return retval; | |
| 1062 } | |
| 1063 | |
| 3536 | 1064 std::string |
| 5275 | 1065 octave_base_stream::getl (octave_idx_type max_len, bool& err, const std::string& who) |
| 2117 | 1066 { |
| 4468 | 1067 return do_gets (max_len, err, true, who); |
| 2117 | 1068 } |
| 1069 | |
| 3536 | 1070 std::string |
| 5275 | 1071 octave_base_stream::gets (octave_idx_type max_len, bool& err, const std::string& who) |
| 2117 | 1072 { |
| 4468 | 1073 return do_gets (max_len, err, false, who); |
| 2117 | 1074 } |
| 1075 | |
| 9701 | 1076 long |
| 1077 octave_base_stream::skipl (long num, bool& err, const std::string& who) | |
| 1078 { | |
| 1079 long cnt = -1; | |
| 1080 | |
| 1081 if ((interactive || forced_interactive) && file_number () == 0) | |
| 1082 { | |
| 1083 ::error ("%s: unable to read from stdin while running interactively", | |
| 1084 who.c_str ()); | |
| 1085 | |
| 1086 return count; | |
| 1087 } | |
| 1088 | |
| 1089 err = false; | |
| 1090 | |
| 1091 std::istream *isp = input_stream (); | |
| 1092 | |
| 1093 if (isp) | |
| 1094 { | |
| 1095 std::istream& is = *isp; | |
| 1096 | |
| 1097 int c = 0, lastc = -1; | |
| 1098 cnt = 0; | |
| 1099 | |
| 1100 while (is && (c = is.get ()) != EOF) | |
| 1101 { | |
| 1102 // Handle CRLF, CR, or LF as line ending. | |
| 1103 | |
| 1104 if (c == '\r' || (c == '\n' && lastc != '\r')) | |
| 1105 { | |
| 1106 if (++cnt == num) | |
| 1107 break; | |
| 1108 } | |
| 1109 | |
| 1110 lastc = c; | |
| 1111 } | |
| 1112 | |
| 1113 // Maybe eat the following \n if \r was just met. | |
| 1114 if (c == '\r' && is.peek () == '\n') | |
| 1115 is.get (); | |
| 1116 | |
| 1117 if (is.bad ()) | |
| 1118 { | |
| 1119 err = true; | |
| 1120 error (who, "read error"); | |
| 1121 } | |
| 1122 | |
| 1123 if (err) | |
| 1124 cnt = -1; | |
| 1125 } | |
| 1126 else | |
| 1127 { | |
| 1128 err = true; | |
| 1129 invalid_operation (who, "reading"); | |
| 1130 } | |
| 1131 | |
| 1132 return cnt; | |
| 1133 } | |
| 1134 | |
| 3640 | 1135 #define OCTAVE_SCAN(is, fmt, arg) octave_scan (is, fmt, arg) |
| 3636 | 1136 |
| 1137 template <class T> | |
| 1138 std::istream& | |
| 6767 | 1139 octave_scan_1 (std::istream& is, const scanf_format_elt& fmt, T* valptr) |
| 3636 | 1140 { |
| 3779 | 1141 T& ref = *valptr; |
| 1142 | |
| 1143 switch (fmt.type) | |
| 1144 { | |
| 1145 case 'o': | |
| 4926 | 1146 is >> std::oct >> ref >> std::dec; |
| 3779 | 1147 break; |
| 1148 | |
| 1149 case 'x': | |
| 4926 | 1150 is >> std::hex >> ref >> std::dec; |
| 1151 break; | |
| 1152 | |
| 1153 case 'i': | |
| 1154 { | |
| 1155 int c1 = is.get (); | |
| 1156 | |
| 1157 if (! is.eof ()) | |
| 1158 { | |
| 1159 if (c1 == '0') | |
| 1160 { | |
|
7709
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parents:
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changeset
|
1161 int c2 = is.peek (); |
| 4926 | 1162 |
| 1163 if (c2 == 'x' || c2 == 'X') | |
|
7709
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|
1164 { |
|
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|
1165 is.ignore (); |
|
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|
1166 if (std::isxdigit (is.peek ())) |
|
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|
1167 is >> std::hex >> ref >> std::dec; |
|
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1168 else |
|
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1169 ref = 0; |
|
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|
1170 } |
| 4926 | 1171 else |
| 4927 | 1172 { |
| 1173 if (c2 == '0' || c2 == '1' || c2 == '2' | |
| 1174 || c2 == '3' || c2 == '4' || c2 == '5' | |
| 1175 || c2 == '6' || c2 == '7') | |
| 1176 is >> std::oct >> ref >> std::dec; | |
| 1177 else | |
| 1178 ref = 0; | |
| 1179 } | |
| 4926 | 1180 } |
| 1181 else | |
| 1182 { | |
| 1183 is.putback (c1); | |
| 1184 | |
| 1185 is >> ref; | |
| 1186 } | |
| 1187 } | |
| 1188 } | |
| 3779 | 1189 break; |
| 1190 | |
| 1191 default: | |
| 1192 is >> ref; | |
| 1193 break; | |
| 1194 } | |
| 3639 | 1195 |
| 3638 | 1196 return is; |
| 3636 | 1197 } |
| 1198 | |
| 6767 | 1199 template <class T> |
| 1200 std::istream& | |
| 1201 octave_scan (std::istream& is, const scanf_format_elt& fmt, T* valptr) | |
| 1202 { | |
| 1203 if (fmt.width) | |
| 1204 { | |
| 1205 // Limit input to fmt.width characters by reading into a | |
| 1206 // temporary stringstream buffer. | |
| 1207 | |
| 1208 std::string tmp; | |
| 1209 | |
| 1210 is.width (fmt.width); | |
| 1211 is >> tmp; | |
| 1212 | |
| 1213 std::istringstream ss (tmp); | |
| 1214 | |
| 1215 octave_scan_1 (ss, fmt, valptr); | |
| 1216 } | |
| 1217 else | |
| 1218 octave_scan_1 (is, fmt, valptr); | |
| 1219 | |
| 1220 return is; | |
| 1221 } | |
| 1222 | |
| 3779 | 1223 // Note that this specialization is only used for reading characters, not |
| 1224 // character strings. See BEGIN_S_CONVERSION for details. | |
| 1225 | |
| 1226 template<> | |
| 1227 std::istream& | |
| 4661 | 1228 octave_scan<> (std::istream& is, const scanf_format_elt& /* fmt */, |
| 1229 char* valptr) | |
| 3779 | 1230 { |
| 1231 return is >> valptr; | |
| 1232 } | |
| 3636 | 1233 |
| 4595 | 1234 template std::istream& |
| 1235 octave_scan (std::istream&, const scanf_format_elt&, int*); | |
| 1236 | |
| 1237 template std::istream& | |
| 1238 octave_scan (std::istream&, const scanf_format_elt&, long int*); | |
| 1239 | |
| 1240 template std::istream& | |
| 1241 octave_scan (std::istream&, const scanf_format_elt&, short int*); | |
| 1242 | |
| 1243 template std::istream& | |
| 1244 octave_scan (std::istream&, const scanf_format_elt&, unsigned int*); | |
| 1245 | |
| 1246 template std::istream& | |
| 1247 octave_scan (std::istream&, const scanf_format_elt&, unsigned long int*); | |
| 1248 | |
| 1249 template std::istream& | |
| 1250 octave_scan (std::istream&, const scanf_format_elt&, unsigned short int*); | |
| 1251 | |
| 1252 #if 0 | |
| 1253 template std::istream& | |
| 1254 octave_scan (std::istream&, const scanf_format_elt&, float*); | |
| 1255 #endif | |
| 1256 | |
| 5403 | 1257 template<> |
| 5176 | 1258 std::istream& |
| 5403 | 1259 octave_scan<> (std::istream& is, const scanf_format_elt& fmt, double* valptr) |
| 5176 | 1260 { |
| 1261 double& ref = *valptr; | |
| 1262 | |
| 1263 switch (fmt.type) | |
| 1264 { | |
| 1265 case 'e': | |
| 1266 case 'f': | |
| 1267 case 'g': | |
| 1268 { | |
| 5259 | 1269 int c1 = EOF; |
| 5176 | 1270 |
| 1271 while (is && (c1 = is.get ()) != EOF && isspace (c1)) | |
| 1272 /* skip whitespace */; | |
| 1273 | |
| 1274 if (c1 != EOF) | |
| 1275 { | |
| 1276 if (c1 == 'N') | |
| 1277 { | |
| 1278 int c2 = is.get (); | |
| 1279 | |
| 1280 if (c2 != EOF) | |
| 1281 { | |
| 1282 if (c2 == 'A') | |
| 1283 { | |
| 1284 int c3 = is.get (); | |
| 1285 | |
| 1286 if (c3 != EOF) | |
| 1287 { | |
| 1288 is.putback (c3); | |
| 1289 | |
| 1290 if (isspace (c3) || ispunct (c3)) | |
| 1291 ref = octave_NA; | |
| 1292 else | |
| 1293 { | |
| 1294 is.putback (c2); | |
| 1295 is.putback (c1); | |
| 1296 | |
| 1297 is >> ref; | |
| 1298 } | |
| 1299 } | |
| 1300 else | |
| 1301 { | |
| 1302 is.clear (); | |
| 1303 | |
| 1304 ref = octave_NA; | |
| 1305 } | |
| 1306 } | |
| 1307 else if (c2 == 'a') | |
| 1308 { | |
| 1309 int c3 = is.get (); | |
| 1310 | |
| 1311 if (c3 != EOF) | |
| 1312 { | |
| 1313 if (c3 == 'N') | |
| 1314 { | |
| 1315 int c4 = is.get (); | |
| 1316 | |
| 1317 if (c4 != EOF) | |
| 1318 { | |
| 1319 is.putback (c4); | |
| 1320 | |
| 1321 if (isspace (c4) || ispunct (c4)) | |
| 1322 ref = octave_NaN; | |
| 1323 else | |
| 1324 { | |
| 1325 is.putback (c3); | |
| 1326 is.putback (c2); | |
| 1327 is.putback (c1); | |
| 1328 | |
| 1329 is >> ref; | |
| 1330 } | |
| 1331 } | |
| 1332 else | |
| 1333 { | |
| 1334 is.clear (); | |
| 1335 | |
| 1336 ref = octave_NaN; | |
| 1337 } | |
| 1338 } | |
| 1339 else | |
| 1340 { | |
| 1341 is.putback (c3); | |
| 1342 is.putback (c2); | |
| 1343 is.putback (c1); | |
| 1344 | |
| 1345 is >> ref; | |
| 1346 } | |
| 1347 } | |
| 1348 } | |
| 1349 else | |
| 1350 { | |
| 1351 is.putback (c2); | |
| 1352 is.putback (c1); | |
| 1353 | |
| 1354 is >> ref; | |
| 1355 } | |
| 1356 } | |
| 1357 } | |
| 1358 else if (c1 == 'I') | |
| 1359 { | |
| 1360 int c2 = is.get (); | |
| 1361 | |
| 1362 if (c2 != EOF) | |
| 1363 { | |
| 1364 if (c2 == 'n') | |
| 1365 { | |
| 1366 int c3 = is.get (); | |
| 1367 | |
| 1368 if (c3 != EOF) | |
| 6483 | 1369 { |
| 1370 if (c3 == 'f') | |
| 1371 { | |
| 1372 int c4 = is.get (); | |
| 1373 | |
| 1374 if (c4 != EOF) | |
| 1375 { | |
| 1376 is.putback (c4); | |
| 1377 | |
| 1378 if (isspace (c4) || ispunct (c4)) | |
| 1379 ref = octave_Inf; | |
| 1380 else | |
| 1381 { | |
| 1382 is.putback (c3); | |
| 1383 is.putback (c2); | |
| 1384 is.putback (c1); | |
| 1385 | |
| 1386 is >> ref; | |
| 1387 } | |
| 1388 } | |
| 1389 else | |
| 1390 { | |
| 1391 is.clear (); | |
| 1392 | |
| 5176 | 1393 ref = octave_Inf; |
| 6483 | 1394 } |
| 1395 } | |
| 1396 else | |
| 1397 { | |
| 1398 is.putback (c3); | |
| 1399 is.putback (c2); | |
| 1400 is.putback (c1); | |
| 1401 | |
| 1402 is >> ref; | |
| 1403 } | |
| 1404 } | |
| 1405 else | |
| 1406 { | |
| 1407 is.putback (c2); | |
| 1408 is.putback (c1); | |
| 1409 | |
| 1410 is >> ref; | |
| 1411 } | |
| 5176 | 1412 } |
| 1413 } | |
| 1414 } | |
| 1415 else | |
| 1416 { | |
| 1417 is.putback (c1); | |
| 1418 | |
| 1419 is >> ref; | |
| 1420 } | |
| 1421 } | |
| 1422 } | |
| 1423 break; | |
| 1424 | |
| 1425 default: | |
| 1426 panic_impossible (); | |
| 1427 break; | |
| 1428 } | |
| 1429 | |
| 1430 return is; | |
| 1431 } | |
| 1432 | |
| 2572 | 1433 template <class T> |
| 1434 void | |
| 3636 | 1435 do_scanf_conv (std::istream& is, const scanf_format_elt& fmt, |
| 5275 | 1436 T valptr, Matrix& mval, double *data, octave_idx_type& idx, |
| 1437 octave_idx_type& conversion_count, octave_idx_type nr, octave_idx_type max_size, | |
| 3636 | 1438 bool discard) |
| 2572 | 1439 { |
| 3640 | 1440 OCTAVE_SCAN (is, fmt, valptr); |
| 2572 | 1441 |
| 1442 if (is) | |
| 1443 { | |
| 1444 if (idx == max_size && ! discard) | |
| 1445 { | |
| 1446 max_size *= 2; | |
| 1447 | |
| 1448 if (nr > 0) | |
| 1449 mval.resize (nr, max_size / nr, 0.0); | |
| 1450 else | |
| 1451 mval.resize (max_size, 1, 0.0); | |
| 1452 | |
| 1453 data = mval.fortran_vec (); | |
| 1454 } | |
| 1455 | |
| 1456 if (! discard) | |
| 3268 | 1457 { |
| 3559 | 1458 conversion_count++; |
| 3268 | 1459 data[idx++] = *(valptr); |
| 1460 } | |
| 2572 | 1461 } |
| 1462 } | |
| 1463 | |
| 1464 template void | |
| 3878 | 1465 do_scanf_conv (std::istream&, const scanf_format_elt&, int*, |
| 5275 | 1466 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 2572 | 1467 |
| 3233 | 1468 template void |
| 3636 | 1469 do_scanf_conv (std::istream&, const scanf_format_elt&, long int*, |
| 5275 | 1470 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3233 | 1471 |
| 1472 template void | |
| 3636 | 1473 do_scanf_conv (std::istream&, const scanf_format_elt&, short int*, |
| 5275 | 1474 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3233 | 1475 |
| 3878 | 1476 template void |
| 1477 do_scanf_conv (std::istream&, const scanf_format_elt&, unsigned int*, | |
| 5275 | 1478 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3878 | 1479 |
| 1480 template void | |
| 1481 do_scanf_conv (std::istream&, const scanf_format_elt&, unsigned long int*, | |
| 5275 | 1482 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3878 | 1483 |
| 1484 template void | |
| 1485 do_scanf_conv (std::istream&, const scanf_format_elt&, unsigned short int*, | |
| 5275 | 1486 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 3878 | 1487 |
| 2600 | 1488 #if 0 |
| 2572 | 1489 template void |
| 3636 | 1490 do_scanf_conv (std::istream&, const scanf_format_elt&, float*, |
| 5275 | 1491 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 2600 | 1492 #endif |
| 2572 | 1493 |
| 1494 template void | |
| 3636 | 1495 do_scanf_conv (std::istream&, const scanf_format_elt&, double*, |
| 5275 | 1496 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
| 2572 | 1497 |
| 3483 | 1498 #define DO_WHITESPACE_CONVERSION() \ |
| 1499 do \ | |
| 1500 { \ | |
| 1501 int c = EOF; \ | |
| 1502 \ | |
| 1503 while (is && (c = is.get ()) != EOF && isspace (c)) \ | |
| 1504 /* skip whitespace */; \ | |
| 1505 \ | |
| 1506 if (c != EOF) \ | |
| 1507 is.putback (c); \ | |
| 1508 } \ | |
| 1509 while (0) | |
| 1510 | |
| 1511 #define DO_LITERAL_CONVERSION() \ | |
| 1512 do \ | |
| 1513 { \ | |
| 1514 int c = EOF; \ | |
| 1515 \ | |
| 1516 int n = strlen (fmt); \ | |
| 1517 int i = 0; \ | |
| 1518 \ | |
| 1519 while (i < n && is && (c = is.get ()) != EOF) \ | |
| 1520 { \ | |
| 5326 | 1521 if (c == static_cast<unsigned char> (fmt[i])) \ |
| 3483 | 1522 { \ |
| 1523 i++; \ | |
| 1524 continue; \ | |
| 1525 } \ | |
| 1526 else \ | |
| 1527 { \ | |
| 1528 is.putback (c); \ | |
| 1529 break; \ | |
| 1530 } \ | |
| 1531 } \ | |
| 1532 \ | |
| 1533 if (i != n) \ | |
| 3538 | 1534 is.setstate (std::ios::failbit); \ |
| 3483 | 1535 } \ |
| 1536 while (0) | |
| 1537 | |
| 3640 | 1538 #define DO_PCT_CONVERSION() \ |
| 1539 do \ | |
| 1540 { \ | |
| 1541 int c = is.get (); \ | |
| 1542 \ | |
| 1543 if (c != EOF) \ | |
| 1544 { \ | |
| 1545 if (c != '%') \ | |
| 1546 { \ | |
| 1547 is.putback (c); \ | |
| 1548 is.setstate (std::ios::failbit); \ | |
| 1549 } \ | |
| 1550 } \ | |
| 1551 else \ | |
| 1552 is.setstate (std::ios::failbit); \ | |
| 1553 } \ | |
| 1554 while (0) | |
| 1555 | |
| 3483 | 1556 #define BEGIN_C_CONVERSION() \ |
| 3538 | 1557 is.unsetf (std::ios::skipws); \ |
| 3483 | 1558 \ |
| 1559 int width = elt->width ? elt->width : 1; \ | |
| 1560 \ | |
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1561 std::string tmp (width, '\0'); \ |
| 3483 | 1562 \ |
| 1563 int c = EOF; \ | |
| 1564 int n = 0; \ | |
| 1565 \ | |
| 1566 while (is && n < width && (c = is.get ()) != EOF) \ | |
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1567 tmp[n++] = static_cast<char> (c); \ |
| 3483 | 1568 \ |
| 5266 | 1569 if (n > 0 && c == EOF) \ |
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1570 is.clear () |
| 3483 | 1571 |
| 1572 // For a `%s' format, skip initial whitespace and then read until the | |
| 5338 | 1573 // next whitespace character or until WIDTH characters have been read. |
| 3483 | 1574 #define BEGIN_S_CONVERSION() \ |
| 1575 int width = elt->width; \ | |
| 1576 \ | |
| 4051 | 1577 std::string tmp; \ |
| 3483 | 1578 \ |
| 1579 do \ | |
| 1580 { \ | |
| 1581 if (width) \ | |
| 5338 | 1582 { \ |
| 10076 | 1583 tmp = std::string (width, '\0'); \ |
| 5338 | 1584 \ |
| 1585 int c = EOF; \ | |
| 1586 \ | |
| 1587 int n = 0; \ | |
| 1588 \ | |
| 1589 while (is && (c = is.get ()) != EOF) \ | |
| 1590 { \ | |
| 1591 if (! isspace (c)) \ | |
| 1592 { \ | |
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1593 tmp[n++] = static_cast<char> (c); \ |
| 5338 | 1594 break; \ |
| 1595 } \ | |
| 1596 } \ | |
| 4051 | 1597 \ |
| 5338 | 1598 while (is && n < width && (c = is.get ()) != EOF) \ |
| 1599 { \ | |
| 1600 if (isspace (c)) \ | |
| 1601 { \ | |
| 1602 is.putback (c); \ | |
| 1603 break; \ | |
| 1604 } \ | |
| 1605 else \ | |
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1606 tmp[n++] = static_cast<char> (c); \ |
| 5338 | 1607 } \ |
| 3483 | 1608 \ |
| 5338 | 1609 if (n > 0 && c == EOF) \ |
| 1610 is.clear (); \ | |
| 1611 \ | |
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1612 tmp.resize (n); \ |
| 5338 | 1613 } \ |
| 3483 | 1614 else \ |
| 5338 | 1615 { \ |
| 1616 is >> std::ws >> tmp; \ | |
| 1617 } \ | |
| 3483 | 1618 } \ |
| 1619 while (0) | |
| 1620 | |
| 1621 // This format must match a nonempty sequence of characters. | |
| 1622 #define BEGIN_CHAR_CLASS_CONVERSION() \ | |
| 1623 int width = elt->width; \ | |
| 1624 \ | |
| 4051 | 1625 std::string tmp; \ |
| 3483 | 1626 \ |
| 1627 do \ | |
| 1628 { \ | |
| 7426 | 1629 if (! width) \ |
| 7427 | 1630 width = INT_MAX; \ |
| 1631 \ | |
| 7426 | 1632 std::ostringstream buf; \ |
| 1633 \ | |
| 1634 std::string char_class = elt->char_class; \ | |
| 4051 | 1635 \ |
| 7426 | 1636 int c = EOF; \ |
| 3483 | 1637 \ |
| 7426 | 1638 if (elt->type == '[') \ |
| 1639 { \ | |
| 1640 int chars_read = 0; \ | |
| 1641 while (is && chars_read++ < width && (c = is.get ()) != EOF \ | |
| 8021 | 1642 && char_class.find (c) != std::string::npos) \ |
| 7426 | 1643 buf << static_cast<char> (c); \ |
| 3483 | 1644 } \ |
| 1645 else \ | |
| 1646 { \ | |
| 7426 | 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); \ |
| 1651 } \ | |
| 3483 | 1652 \ |
| 7426 | 1653 if (width == INT_MAX && c != EOF) \ |
| 1654 is.putback (c); \ | |
| 3483 | 1655 \ |
| 7426 | 1656 tmp = buf.str (); \ |
| 3483 | 1657 \ |
| 7426 | 1658 if (tmp.empty ()) \ |
| 1659 is.setstate (std::ios::failbit); \ | |
| 3483 | 1660 } \ |
| 1661 while (0) | |
| 1662 | |
| 3410 | 1663 #define FINISH_CHARACTER_CONVERSION() \ |
| 1664 do \ | |
| 1665 { \ | |
| 4051 | 1666 width = tmp.length (); \ |
| 3410 | 1667 \ |
| 1668 if (is) \ | |
| 1669 { \ | |
| 1670 int i = 0; \ | |
| 1671 \ | |
| 1672 if (! discard) \ | |
| 1673 { \ | |
| 1674 conversion_count++; \ | |
| 1675 \ | |
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1676 while (i < width) \ |
| 3410 | 1677 { \ |
| 1678 if (data_index == max_size) \ | |
| 1679 { \ | |
| 1680 max_size *= 2; \ | |
| 1681 \ | |
| 4420 | 1682 if (all_char_conv) \ |
| 3410 | 1683 { \ |
| 4420 | 1684 if (one_elt_size_spec) \ |
| 3410 | 1685 mval.resize (1, max_size, 0.0); \ |
| 4420 | 1686 else if (nr > 0) \ |
| 1687 mval.resize (nr, max_size / nr, 0.0); \ | |
| 3410 | 1688 else \ |
| 4420 | 1689 panic_impossible (); \ |
| 3410 | 1690 } \ |
| 4420 | 1691 else if (nr > 0) \ |
| 6970 | 1692 mval.resize (nr, max_size / nr, 0.0); \ |
| 4420 | 1693 else \ |
| 1694 mval.resize (max_size, 1, 0.0); \ | |
| 3410 | 1695 \ |
| 1696 data = mval.fortran_vec (); \ | |
| 1697 } \ | |
| 1698 \ | |
| 1699 data[data_index++] = tmp[i++]; \ | |
| 1700 } \ | |
| 1701 } \ | |
| 1702 } \ | |
| 1703 } \ | |
| 1704 while (0) | |
| 2117 | 1705 |
| 1706 octave_value | |
| 1707 octave_base_stream::do_scanf (scanf_format_list& fmt_list, | |
| 5275 | 1708 octave_idx_type nr, octave_idx_type nc, bool one_elt_size_spec, |
| 1709 octave_idx_type& conversion_count, const std::string& who) | |
| 2117 | 1710 { |
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1711 octave_value retval = Matrix (); |
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1712 |
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1713 if ((interactive || forced_interactive) && file_number () == 0) |
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1714 { |
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1715 ::error ("%s: unable to read from stdin while running interactively", |
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1716 who.c_str ()); |
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1717 |
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1718 return retval; |
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1719 } |
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1720 |
| 3268 | 1721 conversion_count = 0; |
| 1722 | |
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1723 octave_idx_type nconv = fmt_list.num_conversions (); |
| 3640 | 1724 |
| 5275 | 1725 octave_idx_type data_index = 0; |
| 2121 | 1726 |
| 3268 | 1727 if (nr == 0 || nc == 0) |
| 1728 { | |
| 1729 if (one_elt_size_spec) | |
| 1730 nc = 0; | |
| 1731 | |
| 1732 return Matrix (nr, nc, 0.0); | |
| 1733 } | |
| 1734 | |
| 3523 | 1735 std::istream *isp = input_stream (); |
| 2117 | 1736 |
| 1737 bool all_char_conv = fmt_list.all_character_conversions (); | |
| 1738 | |
| 1739 Matrix mval; | |
| 1740 double *data = 0; | |
| 5275 | 1741 octave_idx_type max_size = 0; |
| 1742 octave_idx_type max_conv = 0; | |
| 1743 | |
| 1744 octave_idx_type final_nr = 0; | |
| 1745 octave_idx_type final_nc = 0; | |
| 2117 | 1746 |
| 3268 | 1747 if (all_char_conv) |
| 1748 { | |
| 4420 | 1749 // Any of these could be resized later (if we have %s |
| 1750 // conversions, we may read more than one element for each | |
| 1751 // conversion). | |
| 1752 | |
| 3268 | 1753 if (one_elt_size_spec) |
| 1754 { | |
| 3410 | 1755 max_size = 512; |
| 1756 mval.resize (1, max_size, 0.0); | |
| 1757 | |
| 3268 | 1758 if (nr > 0) |
| 1759 max_conv = nr; | |
| 1760 } | |
| 4420 | 1761 else if (nr > 0) |
| 3268 | 1762 { |
| 4420 | 1763 if (nc > 0) |
| 1764 { | |
| 1765 mval.resize (nr, nc, 0.0); | |
| 1766 max_size = max_conv = nr * nc; | |
| 1767 } | |
| 1768 else | |
| 1769 { | |
| 1770 mval.resize (nr, 32, 0.0); | |
| 1771 max_size = nr * 32; | |
| 1772 } | |
| 3268 | 1773 } |
| 4420 | 1774 else |
| 1775 panic_impossible (); | |
| 3268 | 1776 } |
| 1777 else if (nr > 0) | |
| 2117 | 1778 { |
| 1779 if (nc > 0) | |
| 1780 { | |
| 4420 | 1781 // Will not resize later. |
| 2117 | 1782 mval.resize (nr, nc, 0.0); |
| 1783 max_size = nr * nc; | |
| 3268 | 1784 max_conv = max_size; |
| 2117 | 1785 } |
| 1786 else | |
| 1787 { | |
| 4420 | 1788 // Maybe resize later. |
| 2117 | 1789 mval.resize (nr, 32, 0.0); |
| 2121 | 1790 max_size = nr * 32; |
| 2117 | 1791 } |
| 1792 } | |
| 1793 else | |
| 1794 { | |
| 4420 | 1795 // Maybe resize later. |
| 2117 | 1796 mval.resize (32, 1, 0.0); |
| 1797 max_size = 32; | |
| 1798 } | |
| 1799 | |
| 4420 | 1800 data = mval.fortran_vec (); |
| 1801 | |
| 2117 | 1802 if (isp) |
| 1803 { | |
| 3523 | 1804 std::istream& is = *isp; |
| 2117 | 1805 |
| 1806 const scanf_format_elt *elt = fmt_list.first (); | |
| 1807 | |
| 3538 | 1808 std::ios::fmtflags flags = is.flags (); |
| 2213 | 1809 |
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1810 octave_idx_type trips = 0; |
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1811 |
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1812 octave_idx_type num_fmt_elts = fmt_list.length (); |
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1813 |
| 2117 | 1814 for (;;) |
| 1815 { | |
|
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1816 octave_quit (); |
| 4153 | 1817 |
| 2117 | 1818 if (elt) |
| 1819 { | |
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1820 if (! (elt->type == scanf_format_elt::whitespace_conversion |
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1821 || elt->type == scanf_format_elt::literal_conversion |
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1822 || elt->type == '%') |
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1823 && max_conv > 0 && conversion_count == max_conv) |
| 3268 | 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 | |
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2060 if (nconv == 0 && ++trips == num_fmt_elts) |
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2061 { |
|
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2062 if (all_char_conv && one_elt_size_spec) |
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2063 { |
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2064 final_nr = 1; |
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2065 final_nc = data_index; |
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2066 } |
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2067 else |
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2068 { |
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2069 final_nr = nr; |
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2070 final_nc = (data_index - 1) / nr + 1; |
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2071 } |
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2072 |
|
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2073 break; |
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2074 } |
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2075 else |
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2076 elt = fmt_list.next (nconv > 0); |
| 2117 | 2077 } |
| 2078 } | |
| 2079 | |
| 2080 if (ok ()) | |
| 2081 { | |
| 2121 | 2082 mval.resize (final_nr, final_nc, 0.0); |
| 2117 | 2083 |
| 3268 | 2084 retval = mval; |
| 2085 | |
| 2117 | 2086 if (all_char_conv) |
| 5279 | 2087 retval = retval.convert_to_str (false, true); |
| 2117 | 2088 } |
| 2089 | |
| 2090 return retval; | |
| 2091 } | |
| 2092 | |
| 2093 octave_value | |
| 3810 | 2094 octave_base_stream::scanf (const std::string& fmt, const Array<double>& size, |
| 5275 | 2095 octave_idx_type& conversion_count, const std::string& who) |
| 2117 | 2096 { |
| 2097 octave_value retval = Matrix (); | |
| 2098 | |
| 3559 | 2099 conversion_count = 0; |
| 2117 | 2100 |
| 3523 | 2101 std::istream *isp = input_stream (); |
| 2117 | 2102 |
| 2103 if (isp) | |
| 2104 { | |
| 2105 scanf_format_list fmt_list (fmt); | |
| 2106 | |
| 3640 | 2107 if (fmt_list.num_conversions () == -1) |
| 4468 | 2108 ::error ("%s: invalid format specified", who.c_str ()); |
| 3640 | 2109 else |
| 2117 | 2110 { |
| 5275 | 2111 octave_idx_type nr = -1; |
| 2112 octave_idx_type nc = -1; | |
| 3640 | 2113 |
| 2114 bool one_elt_size_spec; | |
| 2115 | |
| 4468 | 2116 get_size (size, nr, nc, one_elt_size_spec, who); |
| 3640 | 2117 |
| 2118 if (! error_state) | |
| 2119 retval = do_scanf (fmt_list, nr, nc, one_elt_size_spec, | |
| 4468 | 2120 conversion_count, who); |
| 2215 | 2121 } |
| 2122 } | |
| 2123 else | |
| 4468 | 2124 invalid_operation (who, "reading"); |
| 2572 | 2125 |
| 2126 return retval; | |
| 2127 } | |
| 2128 | |
| 2712 | 2129 bool |
| 2130 octave_base_stream::do_oscanf (const scanf_format_elt *elt, | |
| 4468 | 2131 octave_value& retval, const std::string& who) |
| 2572 | 2132 { |
| 2712 | 2133 bool quit = false; |
| 2215 | 2134 |
| 3523 | 2135 std::istream *isp = input_stream (); |
| 2215 | 2136 |
| 2137 if (isp) | |
| 2138 { | |
| 3523 | 2139 std::istream& is = *isp; |
| 2215 | 2140 |
| 3538 | 2141 std::ios::fmtflags flags = is.flags (); |
| 2215 | 2142 |
| 2143 if (elt) | |
| 2144 { | |
| 2145 const char *fmt = elt->text; | |
| 2146 | |
| 2147 bool discard = elt->discard; | |
| 2148 | |
| 2149 switch (elt->type) | |
| 2150 { | |
| 3483 | 2151 case scanf_format_elt::whitespace_conversion: |
| 2152 DO_WHITESPACE_CONVERSION (); | |
| 2153 break; | |
| 2154 | |
| 2155 case scanf_format_elt::literal_conversion: | |
| 2156 DO_LITERAL_CONVERSION (); | |
| 2157 break; | |
| 2158 | |
| 2215 | 2159 case '%': |
| 2160 { | |
| 3640 | 2161 DO_PCT_CONVERSION (); |
| 2162 | |
| 2163 if (! is) | |
| 2712 | 2164 quit = true; |
| 3640 | 2165 |
| 2215 | 2166 } |
| 2167 break; | |
| 2168 | |
| 3878 | 2169 case 'd': case 'i': |
| 2215 | 2170 { |
| 2171 int tmp; | |
| 2172 | |
| 3640 | 2173 if (OCTAVE_SCAN (is, *elt, &tmp)) |
| 2712 | 2174 { |
| 2175 if (! discard) | |
| 4233 | 2176 retval = tmp; |
| 2712 | 2177 } |
| 2178 else | |
| 2179 quit = true; | |
| 2215 | 2180 } |
| 2181 break; | |
| 2182 | |
| 3878 | 2183 case 'o': case 'u': case 'x': |
| 2184 { | |
| 2185 long int tmp; | |
| 2186 | |
| 2187 if (OCTAVE_SCAN (is, *elt, &tmp)) | |
| 2188 { | |
| 2189 if (! discard) | |
| 4254 | 2190 retval = tmp; |
| 3878 | 2191 } |
| 2192 else | |
| 2193 quit = true; | |
| 2194 } | |
| 2195 break; | |
| 2196 | |
| 2215 | 2197 case 'e': case 'f': case 'g': |
| 2198 { | |
| 2600 | 2199 double tmp; |
| 2200 | |
| 3640 | 2201 if (OCTAVE_SCAN (is, *elt, &tmp)) |
| 2712 | 2202 { |
| 2203 if (! discard) | |
| 2204 retval = tmp; | |
| 2205 } | |
| 2206 else | |
| 2207 quit = true; | |
| 2215 | 2208 } |
| 2209 break; | |
| 2210 | |
| 2211 case 'c': | |
| 2212 { | |
| 3483 | 2213 BEGIN_C_CONVERSION (); |
| 2214 | |
| 2215 if (! discard) | |
| 2216 retval = tmp; | |
| 2217 | |
| 2218 if (! is) | |
| 2712 | 2219 quit = true; |
| 2215 | 2220 |
| 2221 is.setf (flags); | |
| 2222 } | |
| 2223 break; | |
| 2224 | |
| 2225 case 's': | |
| 2226 { | |
| 3483 | 2227 BEGIN_S_CONVERSION (); |
| 2228 | |
| 2229 if (! discard) | |
| 2230 retval = tmp; | |
| 2572 | 2231 |
| 3268 | 2232 if (! is) |
| 2233 quit = true; | |
| 2215 | 2234 } |
| 2235 break; | |
| 2236 | |
| 3483 | 2237 case '[': case '^': |
| 2238 { | |
| 2239 BEGIN_CHAR_CLASS_CONVERSION (); | |
| 2240 | |
| 2241 if (! discard) | |
| 2242 retval = tmp; | |
| 2243 | |
| 2244 if (! is) | |
| 2245 quit = true; | |
| 2246 } | |
| 2247 break; | |
| 2248 | |
| 2249 case 'p': | |
| 4468 | 2250 error ("%s: unsupported format specifier", who.c_str ()); |
| 2215 | 2251 break; |
| 2252 | |
| 2253 default: | |
| 4468 | 2254 error ("%s: internal format error", who.c_str ()); |
| 2215 | 2255 break; |
| 2256 } | |
| 2257 } | |
| 2258 | |
| 2259 if (ok () && is.fail ()) | |
| 2260 { | |
| 4468 | 2261 error ("%s: read error", who.c_str ()); |
| 3483 | 2262 |
| 5775 | 2263 // FIXME -- is this the right thing to do? |
| 3342 | 2264 |
| 2265 if (interactive && name () == "stdin") | |
| 2215 | 2266 { |
| 2267 // Skip to end of line. | |
| 2268 | |
| 2269 bool err; | |
| 4468 | 2270 do_gets (-1, err, false, who); |
| 2215 | 2271 } |
| 2272 } | |
| 2273 } | |
| 2274 | |
| 2712 | 2275 return quit; |
| 2215 | 2276 } |
| 2277 | |
| 2278 octave_value_list | |
| 4468 | 2279 octave_base_stream::oscanf (const std::string& fmt, const std::string& who) |
| 2215 | 2280 { |
| 2281 octave_value_list retval; | |
| 2282 | |
| 3523 | 2283 std::istream *isp = input_stream (); |
| 2215 | 2284 |
| 2285 if (isp) | |
| 2286 { | |
| 3523 | 2287 std::istream& is = *isp; |
| 2215 | 2288 |
| 2289 scanf_format_list fmt_list (fmt); | |
| 2290 | |
|
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2291 octave_idx_type nconv = fmt_list.num_conversions (); |
| 2215 | 2292 |
| 3640 | 2293 if (nconv == -1) |
| 4468 | 2294 ::error ("%s: invalid format specified", who.c_str ()); |
| 3640 | 2295 else |
| 2215 | 2296 { |
| 3640 | 2297 is.clear (); |
| 2298 | |
|
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2299 octave_idx_type len = fmt_list.length (); |
| 3640 | 2300 |
| 2301 retval.resize (nconv+1, Matrix ()); | |
| 2302 | |
| 2303 const scanf_format_elt *elt = fmt_list.first (); | |
| 2304 | |
| 2305 int num_values = 0; | |
| 2306 | |
| 2307 bool quit = false; | |
| 2308 | |
| 5275 | 2309 for (octave_idx_type i = 0; i < len; i++) |
| 3640 | 2310 { |
| 2311 octave_value tmp; | |
| 2312 | |
| 4468 | 2313 quit = do_oscanf (elt, tmp, who); |
| 3640 | 2314 |
| 2315 if (quit) | |
| 2316 break; | |
| 2317 else | |
| 2318 { | |
| 2319 if (tmp.is_defined ()) | |
| 2320 retval (num_values++) = tmp; | |
| 2321 | |
| 2322 if (! ok ()) | |
| 2323 break; | |
| 2324 | |
| 2325 elt = fmt_list.next (nconv > 0); | |
| 2326 } | |
| 2327 } | |
| 2328 | |
| 4233 | 2329 retval(nconv) = num_values; |
| 3640 | 2330 |
| 2331 if (! quit) | |
| 2332 { | |
| 2333 // Pick up any trailing stuff. | |
| 2334 if (ok () && len > nconv) | |
| 2335 { | |
| 2336 octave_value tmp; | |
| 3704 | 2337 |
| 2338 elt = fmt_list.next (); | |
| 2339 | |
| 4468 | 2340 do_oscanf (elt, tmp, who); |
| 3640 | 2341 } |
| 2342 } | |
| 2117 | 2343 } |
| 2344 } | |
| 2345 else | |
| 4468 | 2346 invalid_operation (who, "reading"); |
| 2117 | 2347 |
| 2348 return retval; | |
| 2349 } | |
| 2350 | |
| 2351 // Functions that are defined for all output streams (output streams | |
| 2352 // are those that define os). | |
| 2353 | |
| 2354 int | |
| 2355 octave_base_stream::flush (void) | |
| 2356 { | |
| 2357 int retval = -1; | |
| 2358 | |
| 3523 | 2359 std::ostream *os = output_stream (); |
| 2117 | 2360 |
| 2361 if (os) | |
| 2362 { | |
| 2363 os->flush (); | |
| 2364 | |
| 2365 if (os->good ()) | |
| 2366 retval = 0; | |
| 2367 } | |
| 2368 else | |
| 2369 invalid_operation ("fflush", "writing"); | |
| 2370 | |
| 2371 return retval; | |
| 2372 } | |
| 2373 | |
| 2374 class | |
| 2375 printf_value_cache | |
| 2376 { | |
| 2377 public: | |
| 2378 | |
| 3653 | 2379 enum state { ok, conversion_error }; |
| 2117 | 2380 |
| 7352 | 2381 printf_value_cache (const octave_value_list& args, const std::string& who) |
| 2117 | 2382 : values (args), val_idx (0), elt_idx (0), |
| 2383 n_vals (values.length ()), n_elts (0), data (0), | |
| 7352 | 2384 curr_state (ok) |
| 2385 { | |
| 2386 for (octave_idx_type i = 0; i < values.length (); i++) | |
| 2387 { | |
| 2388 octave_value val = values(i); | |
| 2389 | |
| 2390 if (val.is_map () || val.is_cell () || val.is_object () | |
| 2391 || val.is_list ()) | |
| 2392 { | |
| 2393 gripe_wrong_type_arg (who, val); | |
| 2394 break; | |
| 2395 } | |
| 2396 } | |
| 2397 } | |
| 2117 | 2398 |
| 2399 ~printf_value_cache (void) { } | |
| 2400 | |
| 2401 // Get the current value as a double and advance the internal pointer. | |
| 2402 double double_value (void); | |
| 2403 | |
| 2404 // Get the current value as an int and advance the internal pointer. | |
| 2405 int int_value (void); | |
| 2406 | |
| 2407 // Get the current value as a string and advance the internal pointer. | |
| 3523 | 2408 std::string string_value (void); |
| 2117 | 2409 |
| 3145 | 2410 operator bool () const { return (curr_state == ok); } |
| 2117 | 2411 |
| 3653 | 2412 bool exhausted (void) { return (val_idx >= n_vals); } |
| 2117 | 2413 |
| 2414 private: | |
| 2415 | |
| 2416 const octave_value_list values; | |
| 2417 int val_idx; | |
| 2418 int elt_idx; | |
| 2419 int n_vals; | |
| 2420 int n_elts; | |
| 2421 const double *data; | |
| 4874 | 2422 NDArray curr_val; |
| 2117 | 2423 state curr_state; |
| 2424 | |
| 2425 // Must create value cache with values! | |
| 2426 | |
| 2427 printf_value_cache (void); | |
| 2428 | |
| 2429 // No copying! | |
| 2430 | |
| 2431 printf_value_cache (const printf_value_cache&); | |
| 2432 | |
| 2433 printf_value_cache& operator = (const printf_value_cache&); | |
| 2434 }; | |
| 2435 | |
| 2436 double | |
| 2437 printf_value_cache::double_value (void) | |
| 2438 { | |
| 2439 double retval = 0.0; | |
| 2440 | |
| 3711 | 2441 if (exhausted ()) |
| 2442 curr_state = conversion_error; | |
| 2443 | |
| 2444 while (! exhausted ()) | |
| 2117 | 2445 { |
| 2446 if (! data) | |
| 2447 { | |
| 2448 octave_value tmp_val = values (val_idx); | |
| 2449 | |
| 5476 | 2450 // Force string conversion here for compatibility. |
| 2451 | |
| 2452 curr_val = tmp_val.array_value (true); | |
| 2117 | 2453 |
| 2454 if (! error_state) | |
| 2455 { | |
| 2456 elt_idx = 0; | |
| 2457 n_elts = curr_val.length (); | |
| 2458 data = curr_val.data (); | |
| 2459 } | |
| 2460 else | |
| 2461 { | |
| 2462 curr_state = conversion_error; | |
| 2463 break; | |
| 2464 } | |
| 2465 } | |
| 2466 | |
| 2467 if (elt_idx < n_elts) | |
| 2468 { | |
| 3653 | 2469 retval = data[elt_idx++]; |
| 2470 | |
| 2471 if (elt_idx >= n_elts) | |
| 2472 { | |
| 2473 elt_idx = 0; | |
| 2474 val_idx++; | |
| 2475 data = 0; | |
| 2476 } | |
| 2477 | |
| 2117 | 2478 break; |
| 2479 } | |
| 2480 else | |
| 2481 { | |
| 2482 val_idx++; | |
| 2483 data = 0; | |
| 3969 | 2484 |
| 2485 if (n_elts == 0 && exhausted ()) | |
| 2486 curr_state = conversion_error; | |
| 2487 | |
| 2117 | 2488 continue; |
| 2489 } | |
| 2490 } | |
| 2491 | |
| 2492 return retval; | |
| 2493 } | |
| 2494 | |
| 2495 int | |
| 2496 printf_value_cache::int_value (void) | |
| 2497 { | |
| 2498 int retval = 0; | |
| 2499 | |
| 2500 double dval = double_value (); | |
| 2501 | |
| 2502 if (! error_state) | |
| 2503 { | |
| 2504 if (D_NINT (dval) == dval) | |
| 2505 retval = NINT (dval); | |
| 2506 else | |
| 2507 curr_state = conversion_error; | |
| 2508 } | |
| 2509 | |
| 2510 return retval; | |
| 2511 } | |
| 2512 | |
| 3536 | 2513 std::string |
| 2117 | 2514 printf_value_cache::string_value (void) |
| 2515 { | |
| 3523 | 2516 std::string retval; |
| 2117 | 2517 |
| 4425 | 2518 if (exhausted ()) |
| 2519 curr_state = conversion_error; | |
| 4257 | 2520 else |
| 2117 | 2521 { |
| 4425 | 2522 octave_value tval = values (val_idx++); |
| 2523 | |
| 2524 if (tval.rows () == 1) | |
| 2525 retval = tval.string_value (); | |
| 2526 else | |
| 2527 { | |
| 2528 // In the name of Matlab compatibility. | |
| 2529 | |
| 2530 charMatrix chm = tval.char_matrix_value (); | |
| 2531 | |
| 5275 | 2532 octave_idx_type nr = chm.rows (); |
| 2533 octave_idx_type nc = chm.columns (); | |
| 4425 | 2534 |
| 2535 int k = 0; | |
| 2536 | |
| 2537 retval.resize (nr * nc, '\0'); | |
| 2538 | |
| 5275 | 2539 for (octave_idx_type j = 0; j < nc; j++) |
| 2540 for (octave_idx_type i = 0; i < nr; i++) | |
| 4425 | 2541 retval[k++] = chm(i,j); |
| 2542 } | |
| 2543 | |
| 2544 if (error_state) | |
| 2545 curr_state = conversion_error; | |
| 2117 | 2546 } |
| 4257 | 2547 |
| 2117 | 2548 return retval; |
| 2549 } | |
| 2550 | |
| 2551 // Ugh again and again. | |
| 2552 | |
| 2572 | 2553 template <class T> |
| 3620 | 2554 int |
| 3523 | 2555 do_printf_conv (std::ostream& os, const char *fmt, int nsa, int sa_1, |
| 4468 | 2556 int sa_2, T arg, const std::string& who) |
| 2572 | 2557 { |
| 3620 | 2558 int retval = 0; |
| 2559 | |
| 2572 | 2560 switch (nsa) |
| 2561 { | |
| 2562 case 2: | |
| 3640 | 2563 retval = octave_format (os, fmt, sa_1, sa_2, arg); |
| 2572 | 2564 break; |
| 2565 | |
| 2566 case 1: | |
| 3640 | 2567 retval = octave_format (os, fmt, sa_1, arg); |
| 2572 | 2568 break; |
| 2569 | |
| 2570 case 0: | |
| 3640 | 2571 retval = octave_format (os, fmt, arg); |
| 2572 | 2572 break; |
| 2573 | |
| 2574 default: | |
| 4468 | 2575 ::error ("%s: internal error handling format", who.c_str ()); |
| 2572 | 2576 break; |
| 2577 } | |
| 3620 | 2578 |
| 2579 return retval; | |
| 2572 | 2580 } |
| 2581 | |
| 3620 | 2582 template int |
| 4468 | 2583 do_printf_conv (std::ostream&, const char*, int, int, int, int, |
| 2584 const std::string&); | |
| 2585 | |
| 2586 template int | |
| 2587 do_printf_conv (std::ostream&, const char*, int, int, int, long, | |
| 2588 const std::string&); | |
| 2589 | |
| 3878 | 2590 template int |
| 4468 | 2591 do_printf_conv (std::ostream&, const char*, int, int, int, unsigned int, |
| 2592 const std::string&); | |
| 2593 | |
| 2594 template int | |
| 2595 do_printf_conv (std::ostream&, const char*, int, int, int, unsigned long, | |
| 2596 const std::string&); | |
| 2597 | |
| 2598 template int | |
| 2599 do_printf_conv (std::ostream&, const char*, int, int, int, double, | |
| 2600 const std::string&); | |
| 2601 | |
| 2602 template int | |
| 2603 do_printf_conv (std::ostream&, const char*, int, int, int, const char*, | |
| 2604 const std::string&); | |
| 2117 | 2605 |
| 6492 | 2606 #define DO_DOUBLE_CONV(TQUAL) \ |
| 2607 do \ | |
| 2608 { \ | |
| 7199 | 2609 if (val > std::numeric_limits<TQUAL long>::max () \ |
| 2610 || val < std::numeric_limits<TQUAL long>::min ()) \ | |
| 6492 | 2611 { \ |
| 7199 | 2612 std::string tfmt = fmt; \ |
| 6492 | 2613 \ |
| 7199 | 2614 tfmt.replace (tfmt.rfind (elt->type), 1, ".f"); \ |
| 6492 | 2615 \ |
| 7199 | 2616 if (elt->modifier == 'l') \ |
| 2617 tfmt.replace (tfmt.rfind (elt->modifier), 1, ""); \ | |
| 2618 \ | |
| 2619 retval += do_printf_conv (os, tfmt.c_str (), nsa, sa_1, sa_2, \ | |
| 2620 val, who); \ | |
| 6492 | 2621 } \ |
| 2622 else \ | |
| 7199 | 2623 retval += do_printf_conv (os, fmt, nsa, sa_1, sa_2, \ |
| 2624 static_cast<TQUAL long> (val), who); \ | |
| 6492 | 2625 } \ |
| 2626 while (0) | |
| 2627 | |
| 2117 | 2628 int |
| 2629 octave_base_stream::do_printf (printf_format_list& fmt_list, | |
| 4468 | 2630 const octave_value_list& args, |
| 2631 const std::string& who) | |
| 2117 | 2632 { |
| 3620 | 2633 int retval = 0; |
| 2117 | 2634 |
|
10187
a44d15813a39
don't skip literal text elements in scanf formats
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
2635 octave_idx_type nconv = fmt_list.num_conversions (); |
| 3640 | 2636 |
| 3523 | 2637 std::ostream *osp = output_stream (); |
| 2117 | 2638 |
| 2639 if (osp) | |
| 2640 { | |
| 3523 | 2641 std::ostream& os = *osp; |
| 2117 | 2642 |
| 2643 const printf_format_elt *elt = fmt_list.first (); | |
| 2644 | |
| 7352 | 2645 printf_value_cache val_cache (args, who); |
| 2646 | |
| 2647 if (error_state) | |
| 2648 return retval; | |
| 2117 | 2649 |
| 2650 for (;;) | |
| 2651 { | |
|
10142
829e69ec3110
make OCTAVE_QUIT a function
Jaroslav Hajek <highegg@gmail.com>
parents:
10076
diff
changeset
|
2652 octave_quit (); |
| 4153 | 2653 |
| 2117 | 2654 if (elt) |
| 2655 { | |
| 3640 | 2656 // NSA is the number of `star' args to convert. |
| 2657 | |
| 2658 int nsa = (elt->fw < 0) + (elt->prec < 0); | |
| 2117 | 2659 |
| 2660 int sa_1 = 0; | |
| 2661 int sa_2 = 0; | |
| 2662 | |
| 2663 if (nsa > 0) | |
| 2664 { | |
| 2665 sa_1 = val_cache.int_value (); | |
| 2666 | |
| 2667 if (! val_cache) | |
| 2668 break; | |
| 2669 else | |
| 2670 { | |
| 2671 if (nsa > 1) | |
| 2672 { | |
| 2673 sa_2 = val_cache.int_value (); | |
| 2674 | |
| 2675 if (! val_cache) | |
| 2676 break; | |
| 2677 } | |
| 2678 } | |
| 2679 } | |
| 2680 | |
| 2681 const char *fmt = elt->text; | |
| 2682 | |
| 3640 | 2683 if (elt->type == '%') |
| 2684 { | |
| 2685 os << "%"; | |
| 2686 retval++; | |
| 2687 } | |
| 2688 else if (elt->args == 0 && elt->text) | |
| 2689 { | |
| 2690 os << elt->text; | |
| 2691 retval += strlen (elt->text); | |
| 2692 } | |
| 4257 | 2693 else if (elt->type == 's') |
| 3640 | 2694 { |
| 2695 std::string val = val_cache.string_value (); | |
| 2696 | |
| 2697 if (val_cache) | |
| 2698 retval += do_printf_conv (os, fmt, nsa, sa_1, | |
| 4468 | 2699 sa_2, val.c_str (), who); |
| 3640 | 2700 else |
| 2701 break; | |
| 2702 } | |
| 2117 | 2703 else |
| 2704 { | |
| 3640 | 2705 double val = val_cache.double_value (); |
| 2706 | |
| 2707 if (val_cache) | |
| 2117 | 2708 { |
| 6492 | 2709 if (lo_ieee_isnan (val) || xisinf (val)) |
| 4303 | 2710 { |
| 2711 std::string tfmt = fmt; | |
| 6865 | 2712 std::string::size_type i1, i2; |
| 2713 | |
| 2714 tfmt.replace ((i1 = tfmt.rfind (elt->type)), | |
| 2715 1, 1, 's'); | |
| 2716 | |
| 8021 | 2717 if ((i2 = tfmt.rfind ('.')) != std::string::npos && i2 < i1) |
| 6865 | 2718 { |
| 2719 tfmt.erase (i2, i1-i2); | |
| 2720 if (elt->prec < 0) | |
| 2721 nsa--; | |
| 2722 } | |
| 6492 | 2723 |
| 2724 const char *tval = xisinf (val) | |
| 2725 ? (val < 0 ? "-Inf" : "Inf") | |
| 2726 : (lo_ieee_is_NA (val) ? "NA" : "NaN"); | |
| 2727 | |
| 2728 retval += do_printf_conv (os, tfmt.c_str (), | |
| 2729 nsa, sa_1, sa_2, | |
| 2730 tval, who); | |
| 4303 | 2731 } |
| 2732 else | |
| 3640 | 2733 { |
| 6492 | 2734 char type = elt->type; |
| 2735 | |
| 2736 switch (type) | |
| 4303 | 2737 { |
| 2738 case 'd': case 'i': case 'c': | |
| 7227 | 2739 DO_DOUBLE_CONV (OCTAVE_EMPTY_CPP_ARG); |
| 4303 | 2740 break; |
| 2741 | |
| 2742 case 'o': case 'x': case 'X': case 'u': | |
| 6492 | 2743 DO_DOUBLE_CONV (unsigned); |
| 4303 | 2744 break; |
| 2745 | |
| 2746 case 'f': case 'e': case 'E': | |
| 2747 case 'g': case 'G': | |
| 2748 retval | |
| 2749 += do_printf_conv (os, fmt, nsa, sa_1, sa_2, | |
| 4468 | 2750 val, who); |
| 4303 | 2751 break; |
| 2752 | |
| 2753 default: | |
| 4468 | 2754 error ("%s: invalid format specifier", |
| 2755 who.c_str ()); | |
| 4303 | 2756 return -1; |
| 2757 break; | |
| 2758 } | |
| 3640 | 2759 } |
| 2117 | 2760 } |
| 2761 else | |
| 3620 | 2762 break; |
| 2117 | 2763 } |
| 2764 | |
| 3620 | 2765 if (! os) |
| 2117 | 2766 { |
| 4468 | 2767 error ("%s: write error", who.c_str ()); |
| 2117 | 2768 break; |
| 2769 } | |
| 2770 } | |
| 2771 else | |
| 2772 { | |
| 4468 | 2773 ::error ("%s: internal error handling format", who.c_str ()); |
| 2117 | 2774 retval = -1; |
| 2775 break; | |
| 2776 } | |
| 2777 | |
| 3640 | 2778 elt = fmt_list.next (nconv > 0 && ! val_cache.exhausted ()); |
| 2779 | |
| 2780 if (! elt || (val_cache.exhausted () && elt->args > 0)) | |
| 2781 break; | |
| 2782 } | |
| 2117 | 2783 } |
| 3640 | 2784 else |
| 4468 | 2785 invalid_operation (who, "writing"); |
| 2117 | 2786 |
| 2787 return retval; | |
| 2788 } | |
| 2789 | |
| 2790 int | |
| 3640 | 2791 octave_base_stream::printf (const std::string& fmt, |
| 4468 | 2792 const octave_value_list& args, |
| 2793 const std::string& who) | |
| 2117 | 2794 { |
| 3640 | 2795 int retval = 0; |
| 2796 | |
| 2797 printf_format_list fmt_list (fmt); | |
| 2798 | |
| 2799 if (fmt_list.num_conversions () == -1) | |
| 4468 | 2800 ::error ("%s: invalid format specified", who.c_str ()); |
| 2117 | 2801 else |
| 4468 | 2802 retval = do_printf (fmt_list, args, who); |
| 2117 | 2803 |
| 2804 return retval; | |
| 2805 } | |
| 2806 | |
| 2807 int | |
| 4468 | 2808 octave_base_stream::puts (const std::string& s, const std::string& who) |
| 2117 | 2809 { |
| 2810 int retval = -1; | |
| 2811 | |
| 3523 | 2812 std::ostream *osp = output_stream (); |
| 2117 | 2813 |
| 2814 if (osp) | |
| 2815 { | |
| 3523 | 2816 std::ostream& os = *osp; |
| 2117 | 2817 |
| 2818 os << s; | |
| 2819 | |
| 2820 if (os) | |
| 2821 { | |
| 5775 | 2822 // FIXME -- why does this seem to be necessary? |
| 2117 | 2823 // Without it, output from a loop like |
| 2824 // | |
| 2825 // for i = 1:100, fputs (stdout, "foo\n"); endfor | |
| 2826 // | |
| 2827 // doesn't seem to go to the pager immediately. | |
| 2828 | |
| 2829 os.flush (); | |
| 2830 | |
| 2831 if (os) | |
| 2832 retval = 0; | |
| 2833 else | |
| 4468 | 2834 error ("%s: write error", who.c_str ()); |
| 2117 | 2835 } |
| 2836 else | |
| 4468 | 2837 error ("%s: write error", who.c_str ()); |
| 2117 | 2838 } |
| 2839 else | |
| 4468 | 2840 invalid_operation (who, "writing"); |
| 2117 | 2841 |
| 2842 return retval; | |
| 2843 } | |
| 2844 | |
| 2845 // Return current error message for this stream. | |
| 2846 | |
| 3536 | 2847 std::string |
| 2435 | 2848 octave_base_stream::error (bool clear_err, int& err_num) |
| 2117 | 2849 { |
| 2435 | 2850 err_num = fail ? -1 : 0; |
| 2117 | 2851 |
| 3523 | 2852 std::string tmp = errmsg; |
| 2117 | 2853 |
| 2854 if (clear_err) | |
| 2855 clear (); | |
| 2856 | |
| 2857 return tmp; | |
| 2858 } | |
| 2859 | |
| 2860 void | |
| 4468 | 2861 octave_base_stream::invalid_operation (const std::string& who, const char *rw) |
| 2117 | 2862 { |
| 4468 | 2863 // Note that this is not ::error () ! |
| 2864 | |
| 6297 | 2865 error (who, std::string ("stream not open for ") + rw); |
| 2117 | 2866 } |
| 2867 | |
| 3552 | 2868 octave_stream::octave_stream (octave_base_stream *bs) |
| 3340 | 2869 : rep (bs) |
| 2870 { | |
| 2871 if (rep) | |
| 2872 rep->count = 1; | |
| 2873 } | |
| 2874 | |
| 2875 octave_stream::~octave_stream (void) | |
| 2876 { | |
| 2877 if (rep && --rep->count == 0) | |
| 2878 delete rep; | |
| 2879 } | |
| 2880 | |
| 2881 octave_stream::octave_stream (const octave_stream& s) | |
| 2882 : rep (s.rep) | |
| 2883 { | |
| 2884 if (rep) | |
| 2885 rep->count++; | |
| 2886 } | |
| 2887 | |
| 2888 octave_stream& | |
| 2889 octave_stream::operator = (const octave_stream& s) | |
| 2890 { | |
| 2891 if (rep != s.rep) | |
| 2892 { | |
| 2893 if (rep && --rep->count == 0) | |
| 2894 delete rep; | |
| 2895 | |
| 2896 rep = s.rep; | |
| 2897 | |
| 2898 if (rep) | |
| 2899 rep->count++; | |
| 2900 } | |
| 2901 | |
| 2902 return *this; | |
| 2903 } | |
| 2904 | |
| 2117 | 2905 int |
| 2906 octave_stream::flush (void) | |
| 2907 { | |
| 2908 int retval = -1; | |
| 2909 | |
| 5659 | 2910 if (stream_ok ()) |
| 2117 | 2911 retval = rep->flush (); |
| 2912 | |
| 2913 return retval; | |
| 2914 } | |
| 2915 | |
| 3536 | 2916 std::string |
| 5275 | 2917 octave_stream::getl (octave_idx_type max_len, bool& err, const std::string& who) |
| 2117 | 2918 { |
| 3523 | 2919 std::string retval; |
| 2117 | 2920 |
| 5659 | 2921 if (stream_ok ()) |
| 4468 | 2922 retval = rep->getl (max_len, err, who); |
| 2117 | 2923 |
| 2924 return retval; | |
| 2925 } | |
| 2926 | |
| 3536 | 2927 std::string |
| 4468 | 2928 octave_stream::getl (const octave_value& tc_max_len, bool& err, |
| 2929 const std::string& who) | |
| 2117 | 2930 { |
| 3523 | 2931 std::string retval; |
| 2117 | 2932 |
| 2933 err = false; | |
| 2934 | |
| 2935 int conv_err = 0; | |
| 2936 | |
| 6345 | 2937 int max_len = -1; |
| 2938 | |
| 2939 if (tc_max_len.is_defined ()) | |
| 2117 | 2940 { |
| 6345 | 2941 max_len = convert_to_valid_int (tc_max_len, conv_err); |
| 2942 | |
| 2943 if (conv_err || max_len < 0) | |
| 2944 { | |
| 2945 err = true; | |
| 2946 ::error ("%s: invalid maximum length specified", who.c_str ()); | |
| 2947 } | |
| 2117 | 2948 } |
| 6345 | 2949 |
| 2950 if (! error_state) | |
| 4468 | 2951 retval = getl (max_len, err, who); |
| 2117 | 2952 |
| 2953 return retval; | |
| 2954 } | |
| 2955 | |
| 3536 | 2956 std::string |
| 5275 | 2957 octave_stream::gets (octave_idx_type max_len, bool& err, const std::string& who) |
| 2117 | 2958 { |
| 3523 | 2959 std::string retval; |
| 2117 | 2960 |
| 5659 | 2961 if (stream_ok ()) |
| 4468 | 2962 retval = rep->gets (max_len, err, who); |
| 2117 | 2963 |
| 2964 return retval; | |
| 2965 } | |
| 2966 | |
| 3536 | 2967 std::string |
| 4468 | 2968 octave_stream::gets (const octave_value& tc_max_len, bool& err, |
| 2969 const std::string& who) | |
| 2117 | 2970 { |
| 3523 | 2971 std::string retval; |
| 2117 | 2972 |
| 2973 err = false; | |
| 2974 | |
| 2975 int conv_err = 0; | |
| 2976 | |
| 6345 | 2977 int max_len = -1; |
| 2978 | |
| 2979 if (tc_max_len.is_defined ()) | |
| 2117 | 2980 { |
| 6345 | 2981 max_len = convert_to_valid_int (tc_max_len, conv_err); |
| 2982 | |
| 2983 if (conv_err || max_len < 0) | |
| 2984 { | |
| 2985 err = true; | |
| 2986 ::error ("%s: invalid maximum length specified", who.c_str ()); | |
| 2987 } | |
| 2117 | 2988 } |
| 6345 | 2989 |
| 2990 if (! error_state) | |
| 4468 | 2991 retval = gets (max_len, err, who); |
| 2117 | 2992 |
| 2993 return retval; | |
| 2994 } | |
| 2995 | |
| 9701 | 2996 long |
| 2997 octave_stream::skipl (long count, bool& err, const std::string& who) | |
| 2998 { | |
| 2999 long retval = -1; | |
| 3000 | |
| 3001 if (stream_ok ()) | |
| 3002 retval = rep->skipl (count, err, who); | |
| 3003 | |
| 3004 return retval; | |
| 3005 } | |
| 3006 | |
| 3007 long | |
| 3008 octave_stream::skipl (const octave_value& tc_count, bool& err, const std::string& who) | |
| 3009 { | |
| 3010 long retval = -1; | |
| 3011 | |
| 3012 err = false; | |
| 3013 | |
| 3014 int conv_err = 0; | |
| 3015 | |
| 3016 int count = 1; | |
| 3017 | |
| 3018 if (tc_count.is_defined ()) | |
| 3019 { | |
| 3020 if (tc_count.is_scalar_type () && xisinf (tc_count.scalar_value ())) | |
| 3021 count = -1; | |
| 3022 else | |
| 3023 { | |
| 3024 count = convert_to_valid_int (tc_count, conv_err); | |
| 3025 | |
| 3026 if (conv_err || count < 0) | |
| 3027 { | |
| 3028 err = true; | |
| 3029 ::error ("%s: invalid number of lines specified", who.c_str ()); | |
| 3030 } | |
| 3031 } | |
| 3032 } | |
| 3033 | |
| 3034 if (! error_state) | |
| 3035 retval = skipl (count, err, who); | |
| 3036 | |
| 3037 return retval; | |
| 3038 } | |
| 3039 | |
| 2117 | 3040 int |
| 4797 | 3041 octave_stream::seek (long offset, int origin) |
| 2117 | 3042 { |
| 5065 | 3043 int status = -1; |
| 2117 | 3044 |
| 5659 | 3045 if (stream_ok ()) |
| 4889 | 3046 { |
| 3047 clearerr (); | |
| 3048 | |
| 5065 | 3049 long orig_pos = rep->tell (); |
| 3050 | |
| 3051 status = rep->seek (offset, origin); | |
| 3052 | |
| 3053 if (status == 0) | |
| 3054 { | |
| 3055 long save_pos = rep->tell (); | |
| 3056 | |
| 3057 rep->seek (0, SEEK_END); | |
| 3058 | |
| 3059 long pos_eof = rep->tell (); | |
| 3060 | |
| 3061 // I don't think save_pos can be less than zero, but we'll | |
| 3062 // check anyway... | |
| 3063 | |
| 3064 if (save_pos > pos_eof || save_pos < 0) | |
| 3065 { | |
| 3066 // Seek outside bounds of file. Failure should leave | |
| 3067 // position unchanged. | |
| 3068 | |
| 3069 rep->seek (orig_pos, SEEK_SET); | |
| 3070 | |
| 3071 status = -1; | |
| 3072 } | |
| 3073 else | |
| 3074 { | |
| 3075 // Is it possible for this to fail? We are just | |
| 3076 // returning to a position after the first successful | |
| 3077 // seek. | |
| 3078 | |
| 3079 rep->seek (save_pos, SEEK_SET); | |
| 3080 } | |
| 3081 } | |
| 4889 | 3082 } |
| 2117 | 3083 |
| 5065 | 3084 return status; |
| 2117 | 3085 } |
| 3086 | |
| 3087 int | |
| 3088 octave_stream::seek (const octave_value& tc_offset, | |
| 3089 const octave_value& tc_origin) | |
| 3090 { | |
| 3091 int retval = -1; | |
| 3092 | |
| 4797 | 3093 long xoffset = tc_offset.long_value (true); |
| 4645 | 3094 |
| 3095 if (! error_state) | |
| 2117 | 3096 { |
| 4645 | 3097 int conv_err = 0; |
| 3098 | |
| 4797 | 3099 int origin = SEEK_SET; |
| 2117 | 3100 |
| 2341 | 3101 if (tc_origin.is_string ()) |
| 2117 | 3102 { |
| 3523 | 3103 std::string xorigin = tc_origin.string_value (); |
| 2341 | 3104 |
| 3105 if (xorigin == "bof") | |
| 4797 | 3106 origin = SEEK_SET; |
| 2341 | 3107 else if (xorigin == "cof") |
| 4797 | 3108 origin = SEEK_CUR; |
| 2341 | 3109 else if (xorigin == "eof") |
| 4797 | 3110 origin = SEEK_END; |
| 2117 | 3111 else |
| 3112 conv_err = -1; | |
| 3113 } | |
| 2341 | 3114 else |
| 3115 { | |
| 3116 int xorigin = convert_to_valid_int (tc_origin, conv_err); | |
| 3117 | |
| 3118 if (! conv_err) | |
| 3119 { | |
| 3120 if (xorigin == -1) | |
| 4797 | 3121 origin = SEEK_SET; |
| 2341 | 3122 else if (xorigin == 0) |
| 4797 | 3123 origin = SEEK_CUR; |
| 2341 | 3124 else if (xorigin == 1) |
| 4797 | 3125 origin = SEEK_END; |
| 2341 | 3126 else |
| 3127 conv_err = -1; | |
| 3128 } | |
| 3129 } | |
| 2117 | 3130 |
| 3131 if (! conv_err) | |
| 5065 | 3132 { |
| 3133 retval = seek (xoffset, origin); | |
| 3134 | |
| 3135 if (retval != 0) | |
| 3136 error ("fseek: failed to seek to requested position"); | |
| 3137 } | |
| 2117 | 3138 else |
| 3139 error ("fseek: invalid value for origin"); | |
| 3140 } | |
| 3141 else | |
| 3142 error ("fseek: invalid value for offset"); | |
| 3143 | |
| 3144 return retval; | |
| 3145 } | |
| 3146 | |
| 4797 | 3147 long |
| 3148 octave_stream::tell (void) | |
| 2117 | 3149 { |
| 4797 | 3150 long retval = -1; |
| 2117 | 3151 |
| 5659 | 3152 if (stream_ok ()) |
| 2117 | 3153 retval = rep->tell (); |
| 3154 | |
| 3155 return retval; | |
| 3156 } | |
| 3157 | |
| 3158 int | |
| 3159 octave_stream::rewind (void) | |
| 3160 { | |
| 6296 | 3161 return seek (0, SEEK_SET); |
| 2117 | 3162 } |
| 3163 | |
| 3340 | 3164 bool |
| 3165 octave_stream::is_open (void) const | |
| 3166 { | |
| 3167 bool retval = false; | |
| 3168 | |
| 5659 | 3169 if (stream_ok ()) |
| 3340 | 3170 retval = rep->is_open (); |
| 3171 | |
| 3172 return retval; | |
| 3173 } | |
| 3174 | |
| 3175 void | |
| 3176 octave_stream::close (void) | |
| 3177 { | |
| 5659 | 3178 if (stream_ok ()) |
| 3340 | 3179 rep->close (); |
| 3180 } | |
| 3181 | |
| 4944 | 3182 template <class RET_T, class READ_T> |
| 2117 | 3183 octave_value |
| 5275 | 3184 do_read (octave_stream& strm, octave_idx_type nr, octave_idx_type nc, octave_idx_type block_size, |
| 7995 | 3185 octave_idx_type skip, bool do_float_fmt_conv, bool do_NA_conv, |
| 5275 | 3186 oct_mach_info::float_format from_flt_fmt, octave_idx_type& count) |
| 2117 | 3187 { |
| 3188 octave_value retval; | |
| 3189 | |
| 4944 | 3190 RET_T nda; |
| 3191 | |
| 3192 count = 0; | |
| 3193 | |
|
9941
1369f13ae6b2
several fixes by M. Goffioul
Jaroslav Hajek <highegg@gmail.com>
parents:
9701
diff
changeset
|
3194 typedef typename RET_T::element_type ELMT; |
|
1369f13ae6b2
several fixes by M. Goffioul
Jaroslav Hajek <highegg@gmail.com>
parents:
9701
diff
changeset
|
3195 ELMT elt_zero = ELMT (); |
|
1369f13ae6b2
several fixes by M. Goffioul
Jaroslav Hajek <highegg@gmail.com>
parents:
9701
diff
changeset
|
3196 |
|
1369f13ae6b2
several fixes by M. Goffioul
Jaroslav Hajek <highegg@gmail.com>
parents:
9701
diff
changeset
|
3197 ELMT *dat = 0; |
| 4944 | 3198 |
| 5275 | 3199 octave_idx_type max_size = 0; |
| 3200 | |
| 3201 octave_idx_type final_nr = 0; | |
| 3202 octave_idx_type final_nc = 1; | |
| 4944 | 3203 |
| 3204 if (nr > 0) | |
| 3205 { | |
| 3206 if (nc > 0) | |
| 3207 { | |
| 3208 nda.resize (dim_vector (nr, nc), elt_zero); | |
| 3209 dat = nda.fortran_vec (); | |
| 3210 max_size = nr * nc; | |
| 3211 } | |
| 3212 else | |
| 3213 { | |
| 3214 nda.resize (dim_vector (nr, 32), elt_zero); | |
| 3215 dat = nda.fortran_vec (); | |
| 3216 max_size = nr * 32; | |
| 3217 } | |
| 3218 } | |
| 3219 else | |
| 3220 { | |
| 3221 nda.resize (dim_vector (32, 1), elt_zero); | |
| 3222 dat = nda.fortran_vec (); | |
| 3223 max_size = 32; | |
| 3224 } | |
| 3225 | |
| 5775 | 3226 // FIXME -- byte order for Cray? |
| 4944 | 3227 |
| 3228 bool swap = false; | |
| 3229 | |
| 3230 if (oct_mach_info::words_big_endian ()) | |
| 3231 swap = (from_flt_fmt == oct_mach_info::flt_fmt_ieee_little_endian | |
| 3232 || from_flt_fmt == oct_mach_info::flt_fmt_vax_g | |
| 3233 || from_flt_fmt == oct_mach_info::flt_fmt_vax_g); | |
| 3234 else | |
| 3235 swap = (from_flt_fmt == oct_mach_info::flt_fmt_ieee_big_endian); | |
| 3236 | |
| 3237 union | |
| 3238 { | |
| 9685 | 3239 char buf[sizeof (typename strip_template_param<octave_int, READ_T>::type)]; |
| 3240 typename strip_template_param<octave_int, READ_T>::type val; | |
| 4944 | 3241 } u; |
| 3242 | |
| 3243 std::istream *isp = strm.input_stream (); | |
| 3244 | |
| 3245 if (isp) | |
| 3246 { | |
| 3247 std::istream& is = *isp; | |
| 3248 | |
| 5275 | 3249 octave_idx_type elts_read = 0; |
| 4944 | 3250 |
| 3251 for (;;) | |
| 3252 { | |
| 5775 | 3253 // FIXME -- maybe there should be a special case for |
| 4944 | 3254 // skip == 0. |
| 3255 | |
| 3256 if (is) | |
| 3257 { | |
| 3258 if (nr > 0 && nc > 0 && count == max_size) | |
| 3259 { | |
| 3260 final_nr = nr; | |
| 3261 final_nc = nc; | |
| 3262 | |
| 3263 break; | |
| 3264 } | |
| 3265 | |
| 9685 | 3266 is.read (u.buf, sizeof (typename strip_template_param<octave_int, READ_T>::type)); |
| 4944 | 3267 |
| 3268 // We only swap bytes for integer types. For float | |
| 3269 // types, the format conversion will also handle byte | |
| 3270 // swapping. | |
| 3271 | |
| 3272 if (swap) | |
| 9685 | 3273 swap_bytes<sizeof (typename strip_template_param<octave_int, READ_T>::type)> (u.buf); |
| 4944 | 3274 else if (do_float_fmt_conv) |
| 3275 do_float_format_conversion | |
| 3276 (u.buf, | |
| 9685 | 3277 sizeof (typename strip_template_param<octave_int, READ_T>::type), |
| 4944 | 3278 1, from_flt_fmt, oct_mach_info::float_format ()); |
| 3279 | |
| 9685 | 3280 typename RET_T::element_type tmp |
| 3281 = static_cast <typename RET_T::element_type> (u.val); | |
| 4944 | 3282 |
| 5030 | 3283 if (is) |
| 4944 | 3284 { |
| 5030 | 3285 if (count == max_size) |
| 4944 | 3286 { |
| 5030 | 3287 max_size *= 2; |
| 3288 | |
| 3289 if (nr > 0) | |
| 3290 nda.resize (dim_vector (nr, max_size / nr), | |
| 3291 elt_zero); | |
| 3292 else | |
| 3293 nda.resize (dim_vector (max_size, 1), elt_zero); | |
| 3294 | |
| 3295 dat = nda.fortran_vec (); | |
| 4944 | 3296 } |
| 3297 | |
| 7995 | 3298 if (do_NA_conv && __lo_ieee_is_old_NA (tmp)) |
| 3299 tmp = __lo_ieee_replace_old_NA (tmp); | |
| 3300 | |
| 5030 | 3301 dat[count++] = tmp; |
| 3302 | |
| 3303 elts_read++; | |
| 3304 } | |
| 3305 | |
|
7538
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oct-stream.cc (do_read): stop reading if seek fails
John W. Eaton <jwe@octave.org>
parents:
7433
diff
changeset
|
3306 int seek_status = 0; |
|
2c4b0cbda85a
oct-stream.cc (do_read): stop reading if seek fails
John W. Eaton <jwe@octave.org>
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7433
diff
changeset
|
3307 |
| 5030 | 3308 if (skip != 0 && elts_read == block_size) |
| 3309 { | |
|
7538
2c4b0cbda85a
oct-stream.cc (do_read): stop reading if seek fails
John W. Eaton <jwe@octave.org>
parents:
7433
diff
changeset
|
3310 seek_status = strm.seek (skip, SEEK_CUR); |
| 5030 | 3311 elts_read = 0; |
| 3312 } | |
| 3313 | |
|
7538
2c4b0cbda85a
oct-stream.cc (do_read): stop reading if seek fails
John W. Eaton <jwe@octave.org>
parents:
7433
diff
changeset
|
3314 if (is.eof () || seek_status < 0) |
| 5030 | 3315 { |
| 3316 if (nr > 0) | |
| 4944 | 3317 { |
| 5030 | 3318 if (count > nr) |
| 4944 | 3319 { |
| 5030 | 3320 final_nr = nr; |
| 3321 final_nc = (count - 1) / nr + 1; | |
| 4944 | 3322 } |
| 3323 else | |
| 3324 { | |
| 3325 final_nr = count; | |
| 3326 final_nc = 1; | |
| 3327 } | |
| 3328 } | |
| 5030 | 3329 else |
| 3330 { | |
| 3331 final_nr = count; | |
| 3332 final_nc = 1; | |
| 3333 } | |
| 3334 | |
| 4944 | 3335 break; |
| 3336 } | |
| 3337 } | |
| 5030 | 3338 else if (is.eof ()) |
| 3339 break; | |
| 4944 | 3340 } |
| 3341 } | |
| 3342 | |
| 5030 | 3343 nda.resize (dim_vector (final_nr, final_nc), elt_zero); |
| 3344 | |
| 3345 retval = nda; | |
| 4944 | 3346 |
| 3347 return retval; | |
| 3348 } | |
| 3349 | |
| 3350 #define DO_READ_VAL_TEMPLATE(RET_T, READ_T) \ | |
| 3351 template octave_value \ | |
| 7995 | 3352 do_read<RET_T, READ_T> (octave_stream&, octave_idx_type, octave_idx_type, octave_idx_type, octave_idx_type, bool, bool, \ |
| 5275 | 3353 oct_mach_info::float_format, octave_idx_type&) |
| 4944 | 3354 |
| 5775 | 3355 // FIXME -- should we only have float if it is a different |
| 4944 | 3356 // size from double? |
| 3357 | |
| 3358 #define INSTANTIATE_DO_READ(VAL_T) \ | |
| 3359 DO_READ_VAL_TEMPLATE (VAL_T, octave_int8); \ | |
| 3360 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint8); \ | |
| 3361 DO_READ_VAL_TEMPLATE (VAL_T, octave_int16); \ | |
| 3362 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint16); \ | |
| 3363 DO_READ_VAL_TEMPLATE (VAL_T, octave_int32); \ | |
| 3364 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint32); \ | |
| 3365 DO_READ_VAL_TEMPLATE (VAL_T, octave_int64); \ | |
| 3366 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint64); \ | |
| 3367 DO_READ_VAL_TEMPLATE (VAL_T, float); \ | |
| 3368 DO_READ_VAL_TEMPLATE (VAL_T, double); \ | |
| 3369 DO_READ_VAL_TEMPLATE (VAL_T, char); \ | |
| 3370 DO_READ_VAL_TEMPLATE (VAL_T, signed char); \ | |
| 3371 DO_READ_VAL_TEMPLATE (VAL_T, unsigned char) | |
| 3372 | |
| 4970 | 3373 INSTANTIATE_DO_READ (int8NDArray); |
| 3374 INSTANTIATE_DO_READ (uint8NDArray); | |
| 3375 INSTANTIATE_DO_READ (int16NDArray); | |
| 3376 INSTANTIATE_DO_READ (uint16NDArray); | |
| 3377 INSTANTIATE_DO_READ (int32NDArray); | |
| 3378 INSTANTIATE_DO_READ (uint32NDArray); | |
| 3379 INSTANTIATE_DO_READ (int64NDArray); | |
| 3380 INSTANTIATE_DO_READ (uint64NDArray); | |
|
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David Bateman <dbateman@free.fr>
parents:
7724
diff
changeset
|
3381 INSTANTIATE_DO_READ (FloatNDArray); |
| 4970 | 3382 INSTANTIATE_DO_READ (NDArray); |
| 3383 INSTANTIATE_DO_READ (charNDArray); | |
| 5780 | 3384 INSTANTIATE_DO_READ (boolNDArray); |
| 4944 | 3385 |
| 7995 | 3386 typedef octave_value (*read_fptr) (octave_stream&, octave_idx_type, octave_idx_type, octave_idx_type, octave_idx_type, bool, bool, |
| 5275 | 3387 oct_mach_info::float_format ffmt, octave_idx_type&); |
| 4944 | 3388 |
| 3389 #define FILL_TABLE_ROW(R, VAL_T) \ | |
|
9202
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clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3390 read_fptr_table[R][oct_data_conv::dt_int8] = do_read<VAL_T, octave_int8>; \ |
|
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3391 read_fptr_table[R][oct_data_conv::dt_uint8] = do_read<VAL_T, octave_uint8>; \ |
|
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3392 read_fptr_table[R][oct_data_conv::dt_int16] = do_read<VAL_T, octave_int16>; \ |
|
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3393 read_fptr_table[R][oct_data_conv::dt_uint16] = do_read<VAL_T, octave_uint16>; \ |
|
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3394 read_fptr_table[R][oct_data_conv::dt_int32] = do_read<VAL_T, octave_int32>; \ |
|
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3395 read_fptr_table[R][oct_data_conv::dt_uint32] = do_read<VAL_T, octave_uint32>; \ |
|
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3396 read_fptr_table[R][oct_data_conv::dt_int64] = do_read<VAL_T, octave_int64>; \ |
|
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3397 read_fptr_table[R][oct_data_conv::dt_uint64] = do_read<VAL_T, octave_uint64>; \ |
|
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3398 read_fptr_table[R][oct_data_conv::dt_single] = do_read<VAL_T, float>; \ |
|
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3399 read_fptr_table[R][oct_data_conv::dt_double] = do_read<VAL_T, double>; \ |
|
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3400 read_fptr_table[R][oct_data_conv::dt_char] = do_read<VAL_T, char>; \ |
|
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3401 read_fptr_table[R][oct_data_conv::dt_schar] = do_read<VAL_T, signed char>; \ |
|
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3402 read_fptr_table[R][oct_data_conv::dt_uchar] = do_read<VAL_T, unsigned char>; \ |
|
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3403 read_fptr_table[R][oct_data_conv::dt_logical] = do_read<VAL_T, unsigned char> |
| 4944 | 3404 |
| 3405 octave_value | |
| 5275 | 3406 octave_stream::read (const Array<double>& size, octave_idx_type block_size, |
| 4944 | 3407 oct_data_conv::data_type input_type, |
| 3408 oct_data_conv::data_type output_type, | |
| 5275 | 3409 octave_idx_type skip, oct_mach_info::float_format ffmt, |
| 3410 octave_idx_type& char_count) | |
| 4944 | 3411 { |
| 3412 static bool initialized = false; | |
| 3413 | |
| 3414 // Table function pointers for return types x read types. | |
| 3415 | |
|
9202
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3416 static read_fptr read_fptr_table[oct_data_conv::dt_unknown][14]; |
| 4944 | 3417 |
| 3418 if (! initialized) | |
| 3419 { | |
|
9202
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3420 for (int i = 0; i < oct_data_conv::dt_unknown; i++) |
|
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3421 for (int j = 0; j < 14; j++) |
|
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3422 read_fptr_table[i][j] = 0; |
|
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3423 |
| 4944 | 3424 FILL_TABLE_ROW (oct_data_conv::dt_int8, int8NDArray); |
| 3425 FILL_TABLE_ROW (oct_data_conv::dt_uint8, uint8NDArray); | |
| 3426 FILL_TABLE_ROW (oct_data_conv::dt_int16, int16NDArray); | |
| 3427 FILL_TABLE_ROW (oct_data_conv::dt_uint16, uint16NDArray); | |
| 3428 FILL_TABLE_ROW (oct_data_conv::dt_int32, int32NDArray); | |
| 3429 FILL_TABLE_ROW (oct_data_conv::dt_uint32, uint32NDArray); | |
| 3430 FILL_TABLE_ROW (oct_data_conv::dt_int64, int64NDArray); | |
| 3431 FILL_TABLE_ROW (oct_data_conv::dt_uint64, uint64NDArray); | |
|
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David Bateman <dbateman@free.fr>
parents:
7724
diff
changeset
|
3432 FILL_TABLE_ROW (oct_data_conv::dt_single, FloatNDArray); |
| 4944 | 3433 FILL_TABLE_ROW (oct_data_conv::dt_double, NDArray); |
| 3434 FILL_TABLE_ROW (oct_data_conv::dt_char, charNDArray); | |
| 3435 FILL_TABLE_ROW (oct_data_conv::dt_schar, charNDArray); | |
| 3436 FILL_TABLE_ROW (oct_data_conv::dt_uchar, charNDArray); | |
| 4970 | 3437 FILL_TABLE_ROW (oct_data_conv::dt_logical, boolNDArray); |
| 4944 | 3438 |
| 3439 initialized = true; | |
| 3440 } | |
| 3441 | |
| 3442 octave_value retval; | |
| 3443 | |
| 5659 | 3444 if (stream_ok ()) |
| 4944 | 3445 { |
| 5775 | 3446 // FIXME -- we may eventually want to make this extensible. |
| 3447 | |
| 3448 // FIXME -- we need a better way to ensure that this | |
| 4944 | 3449 // numbering stays consistent with the order of the elements in the |
| 3450 // data_type enum in the oct_data_conv class. | |
| 3451 | |
| 3452 char_count = 0; | |
| 3453 | |
| 5275 | 3454 octave_idx_type nr = -1; |
| 3455 octave_idx_type nc = -1; | |
| 4944 | 3456 |
| 3457 bool ignore; | |
| 3458 | |
| 3459 get_size (size, nr, nc, ignore, "fread"); | |
| 3460 | |
| 3461 if (! error_state) | |
| 3462 { | |
| 3463 if (nr == 0 || nc == 0) | |
| 3464 retval = Matrix (nr, nc); | |
| 3465 else | |
| 3466 { | |
| 3467 if (ffmt == oct_mach_info::flt_fmt_unknown) | |
| 3468 ffmt = float_format (); | |
| 3469 | |
|
9202
4b2147b25e8d
clean up Array instantiation mess in oct-stream.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
9017
diff
changeset
|
3470 read_fptr fcn = read_fptr_table[output_type][input_type]; |
| 4944 | 3471 |
| 3472 bool do_float_fmt_conv = ((input_type == oct_data_conv::dt_double | |
| 3473 || input_type == oct_data_conv::dt_single) | |
| 3474 && ffmt != float_format ()); | |
| 3475 | |
| 7995 | 3476 bool do_NA_conv = (output_type == oct_data_conv::dt_double); |
| 3477 | |
| 4944 | 3478 if (fcn) |
| 3479 { | |
| 3480 retval = (*fcn) (*this, nr, nc, block_size, skip, | |
| 7995 | 3481 do_float_fmt_conv, do_NA_conv, |
| 3482 ffmt, char_count); | |
| 4944 | 3483 |
| 5775 | 3484 // FIXME -- kluge! |
| 4944 | 3485 |
| 3486 if (! error_state | |
| 3487 && (output_type == oct_data_conv::dt_char | |
| 3488 || output_type == oct_data_conv::dt_schar | |
| 3489 || 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
|
3490 retval = retval.char_matrix_value (); |
| 4944 | 3491 } |
| 3492 else | |
| 3493 error ("fread: unable to read and convert requested types"); | |
| 3494 } | |
| 3495 } | |
| 3496 else | |
| 3497 invalid_operation ("fread", "reading"); | |
| 3498 } | |
| 2117 | 3499 |
| 3500 return retval; | |
| 3501 } | |
| 3502 | |
| 5275 | 3503 octave_idx_type |
| 3504 octave_stream::write (const octave_value& data, octave_idx_type block_size, | |
| 3505 oct_data_conv::data_type output_type, octave_idx_type skip, | |
| 2317 | 3506 oct_mach_info::float_format flt_fmt) |
| 2117 | 3507 { |
| 5275 | 3508 octave_idx_type retval = -1; |
| 2117 | 3509 |
| 5659 | 3510 if (stream_ok ()) |
| 4944 | 3511 { |
| 3512 if (! error_state) | |
| 3513 { | |
| 3514 if (flt_fmt == oct_mach_info::flt_fmt_unknown) | |
| 3515 flt_fmt = float_format (); | |
| 3516 | |
| 5275 | 3517 octave_idx_type status = data.write (*this, block_size, output_type, |
| 4944 | 3518 skip, flt_fmt); |
| 3519 | |
| 3520 if (status < 0) | |
| 3521 error ("fwrite: write error"); | |
| 3522 else | |
| 3523 retval = status; | |
| 3524 } | |
| 3525 else | |
| 3526 invalid_operation ("fwrite", "writing"); | |
| 3527 } | |
| 2117 | 3528 |
| 3529 return retval; | |
| 3530 } | |
| 3531 | |
| 4944 | 3532 template <class T> |
| 3533 void | |
| 3534 write_int (std::ostream& os, bool swap, const T& val) | |
| 3535 { | |
| 9685 | 3536 typename T::val_type tmp = val.value (); |
| 4944 | 3537 |
| 3538 if (swap) | |
| 9685 | 3539 swap_bytes<sizeof (typename T::val_type)> (&tmp); |
| 4944 | 3540 |
| 3541 os.write (reinterpret_cast<const char *> (&tmp), | |
| 9685 | 3542 sizeof (typename T::val_type)); |
| 4944 | 3543 } |
| 3544 | |
| 3545 template void write_int (std::ostream&, bool, const octave_int8&); | |
| 3546 template void write_int (std::ostream&, bool, const octave_uint8&); | |
| 3547 template void write_int (std::ostream&, bool, const octave_int16&); | |
| 3548 template void write_int (std::ostream&, bool, const octave_uint16&); | |
| 3549 template void write_int (std::ostream&, bool, const octave_int32&); | |
| 3550 template void write_int (std::ostream&, bool, const octave_uint32&); | |
| 3551 template void write_int (std::ostream&, bool, const octave_int64&); | |
| 3552 template void write_int (std::ostream&, bool, const octave_uint64&); | |
| 3553 | |
| 3554 template <class T> | |
| 3555 static inline bool | |
| 3556 do_write (std::ostream& os, const T& val, oct_data_conv::data_type output_type, | |
| 3557 oct_mach_info::float_format flt_fmt, bool swap, | |
| 3558 bool do_float_conversion) | |
| 3559 { | |
| 3560 bool retval = true; | |
| 3561 | |
| 3562 // For compatibility, Octave converts to the output type, then | |
| 3563 // writes. This means that truncation happens on the conversion. | |
| 3564 // For example, the following program prints 0: | |
| 3565 // | |
| 3566 // x = int8 (-1) | |
| 3567 // f = fopen ("foo.dat", "w"); | |
| 3568 // fwrite (f, x, "unsigned char"); | |
| 3569 // fclose (f); | |
| 3570 // f = fopen ("foo.dat", "r"); | |
| 3571 // y = fread (f, 1, "unsigned char"); | |
| 3572 // printf ("%d\n", y); | |
| 3573 | |
| 3574 switch (output_type) | |
| 3575 { | |
| 3576 case oct_data_conv::dt_char: | |
| 3577 case oct_data_conv::dt_schar: | |
| 3578 case oct_data_conv::dt_int8: | |
| 3579 write_int (os, swap, octave_int8 (val)); | |
| 3580 break; | |
| 3581 | |
| 3582 case oct_data_conv::dt_uchar: | |
| 3583 case oct_data_conv::dt_uint8: | |
| 3584 write_int (os, swap, octave_uint8 (val)); | |
| 3585 break; | |
| 3586 | |
| 3587 case oct_data_conv::dt_int16: | |
| 3588 write_int (os, swap, octave_int16 (val)); | |
| 3589 break; | |
| 3590 | |
| 3591 case oct_data_conv::dt_uint16: | |
| 3592 write_int (os, swap, octave_uint16 (val)); | |
| 3593 break; | |
| 3594 | |
| 3595 case oct_data_conv::dt_int32: | |
| 3596 write_int (os, swap, octave_int32 (val)); | |
| 3597 break; | |
| 3598 | |
| 3599 case oct_data_conv::dt_uint32: | |
| 3600 write_int (os, swap, octave_uint32 (val)); | |
| 3601 break; | |
| 3602 | |
| 3603 case oct_data_conv::dt_int64: | |
| 3604 write_int (os, swap, octave_int64 (val)); | |
| 3605 break; | |
| 3606 | |
| 3607 case oct_data_conv::dt_uint64: | |
| 3608 write_int (os, swap, octave_uint64 (val)); | |
| 3609 break; | |
| 3610 | |
| 3611 case oct_data_conv::dt_single: | |
| 3612 { | |
| 3613 float f = static_cast<float> (val); | |
| 3614 | |
| 3615 if (do_float_conversion) | |
| 3616 do_float_format_conversion (&f, 1, flt_fmt); | |
| 3617 | |
| 3618 os.write (reinterpret_cast<const char *> (&f), sizeof (float)); | |
| 3619 } | |
| 3620 break; | |
| 3621 | |
| 3622 case oct_data_conv::dt_double: | |
| 3623 { | |
| 3624 double d = static_cast<double> (val); | |
| 3625 if (do_float_conversion) | |
| 3626 do_double_format_conversion (&d, 1, flt_fmt); | |
| 3627 | |
| 3628 os.write (reinterpret_cast<const char *> (&d), sizeof (double)); | |
| 3629 } | |
| 3630 break; | |
| 3631 | |
| 3632 default: | |
| 3633 retval = false; | |
| 3634 (*current_liboctave_error_handler) | |
| 3635 ("write: invalid type specification"); | |
| 3636 break; | |
| 3637 } | |
| 3638 | |
| 3639 return retval; | |
| 3640 } | |
| 3641 | |
| 5887 | 3642 template bool |
| 3643 do_write (std::ostream&, const octave_int8&, oct_data_conv::data_type, | |
| 3644 oct_mach_info::float_format, bool, bool); | |
| 3645 | |
| 3646 template bool | |
| 3647 do_write (std::ostream&, const octave_uint8&, oct_data_conv::data_type, | |
| 3648 oct_mach_info::float_format, bool, bool); | |
| 3649 | |
| 3650 template bool | |
| 3651 do_write (std::ostream&, const octave_int16&, oct_data_conv::data_type, | |
| 3652 oct_mach_info::float_format, bool, bool); | |
| 3653 | |
| 3654 template bool | |
| 3655 do_write (std::ostream&, const octave_uint16&, oct_data_conv::data_type, | |
| 3656 oct_mach_info::float_format, bool, bool); | |
| 3657 | |
| 3658 template bool | |
| 3659 do_write (std::ostream&, const octave_int32&, oct_data_conv::data_type, | |
| 3660 oct_mach_info::float_format, bool, bool); | |
| 3661 | |
| 3662 template bool | |
| 3663 do_write (std::ostream&, const octave_uint32&, oct_data_conv::data_type, | |
| 3664 oct_mach_info::float_format, bool, bool); | |
| 3665 | |
| 3666 template bool | |
| 3667 do_write (std::ostream&, const octave_int64&, oct_data_conv::data_type, | |
| 3668 oct_mach_info::float_format, bool, bool); | |
| 3669 | |
| 3670 template bool | |
| 3671 do_write (std::ostream&, const octave_uint64&, oct_data_conv::data_type, | |
| 3672 oct_mach_info::float_format, bool, bool); | |
| 3673 | |
| 4944 | 3674 template <class T> |
| 5275 | 3675 octave_idx_type |
| 3676 octave_stream::write (const Array<T>& data, octave_idx_type block_size, | |
| 4944 | 3677 oct_data_conv::data_type output_type, |
| 5275 | 3678 octave_idx_type skip, oct_mach_info::float_format flt_fmt) |
| 4944 | 3679 { |
| 5275 | 3680 octave_idx_type retval = -1; |
| 4944 | 3681 |
| 3682 bool status = true; | |
| 3683 | |
| 5275 | 3684 octave_idx_type count = 0; |
| 4944 | 3685 |
| 3686 const T *d = data.data (); | |
| 3687 | |
| 5275 | 3688 octave_idx_type n = data.length (); |
| 4944 | 3689 |
| 3690 oct_mach_info::float_format native_flt_fmt | |
| 3691 = oct_mach_info::float_format (); | |
| 3692 | |
| 3693 bool do_float_conversion = (flt_fmt != native_flt_fmt); | |
| 3694 | |
| 5775 | 3695 // FIXME -- byte order for Cray? |
| 4944 | 3696 |
| 3697 bool swap = false; | |
| 3698 | |
| 3699 if (oct_mach_info::words_big_endian ()) | |
| 3700 swap = (flt_fmt == oct_mach_info::flt_fmt_ieee_little_endian | |
| 3701 || flt_fmt == oct_mach_info::flt_fmt_vax_g | |
| 3702 || flt_fmt == oct_mach_info::flt_fmt_vax_g); | |
| 3703 else | |
| 3704 swap = (flt_fmt == oct_mach_info::flt_fmt_ieee_big_endian); | |
| 3705 | |
| 5275 | 3706 for (octave_idx_type i = 0; i < n; i++) |
| 4944 | 3707 { |
| 3708 std::ostream *osp = output_stream (); | |
| 3709 | |
| 3710 if (osp) | |
| 3711 { | |
| 3712 std::ostream& os = *osp; | |
| 3713 | |
| 3714 if (skip != 0 && (i % block_size) == 0) | |
| 5254 | 3715 { |
|
9017
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3716 // 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
|
3717 // 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
|
3718 |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3719 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
|
3720 |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3721 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
|
3722 |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3723 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
|
3724 |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3725 // 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
|
3726 // original position? |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3727 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
|
3728 |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3729 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
|
3730 |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3731 if (remaining < skip) |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3732 { |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3733 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
|
3734 |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3735 // 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
|
3736 // blocks... |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3737 |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3738 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
|
3739 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
|
3740 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
|
3741 } |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3742 else |
|
9543a90fac18
seek to skip if writing inside bounds of existing file
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
3743 seek (skip, SEEK_CUR); |
| 5254 | 3744 } |
| 4944 | 3745 |
| 3746 if (os) | |
| 3747 { | |
| 3748 status = do_write (os, d[i], output_type, flt_fmt, swap, | |
| 3749 do_float_conversion); | |
| 3750 | |
| 3751 if (os && status) | |
| 3752 count++; | |
| 3753 else | |
| 3754 break; | |
| 3755 } | |
| 3756 else | |
| 3757 { | |
| 3758 status = false; | |
| 3759 break; | |
| 3760 } | |
| 3761 } | |
| 3762 else | |
| 3763 { | |
| 3764 status = false; | |
| 3765 break; | |
| 3766 } | |
| 3767 } | |
| 3768 | |
| 3769 if (status) | |
| 3770 retval = count; | |
| 3771 | |
| 3772 return retval; | |
| 3773 } | |
| 3774 | |
| 5275 | 3775 template octave_idx_type |
| 3776 octave_stream::write (const Array<char>&, octave_idx_type, | |
| 4944 | 3777 oct_data_conv::data_type, |
| 5275 | 3778 octave_idx_type, oct_mach_info::float_format); |
| 3779 | |
| 3780 template octave_idx_type | |
| 3781 octave_stream::write (const Array<bool>&, octave_idx_type, | |
| 4970 | 3782 oct_data_conv::data_type, |
| 5275 | 3783 octave_idx_type, oct_mach_info::float_format); |
| 3784 | |
| 3785 template octave_idx_type | |
| 3786 octave_stream::write (const Array<double>&, octave_idx_type, | |
| 4944 | 3787 oct_data_conv::data_type, |
| 5275 | 3788 octave_idx_type, oct_mach_info::float_format); |
| 3789 | |
| 3790 template octave_idx_type | |
|
7789
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7724
diff
changeset
|
3791 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
|
3792 oct_data_conv::data_type, |
|
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7724
diff
changeset
|
3793 octave_idx_type, oct_mach_info::float_format); |
|
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7724
diff
changeset
|
3794 |
|
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7724
diff
changeset
|
3795 template octave_idx_type |
| 5275 | 3796 octave_stream::write (const Array<octave_int8>&, octave_idx_type, |
| 4944 | 3797 oct_data_conv::data_type, |
| 5275 | 3798 octave_idx_type, oct_mach_info::float_format); |
| 3799 | |
| 3800 template octave_idx_type | |
| 3801 octave_stream::write (const Array<octave_uint8>&, octave_idx_type, | |
| 4944 | 3802 oct_data_conv::data_type, |
| 5275 | 3803 octave_idx_type, oct_mach_info::float_format); |
| 3804 | |
| 3805 template octave_idx_type | |
| 3806 octave_stream::write (const Array<octave_int16>&, octave_idx_type, | |
| 4944 | 3807 oct_data_conv::data_type, |
| 5275 | 3808 octave_idx_type, oct_mach_info::float_format); |
| 3809 | |
| 3810 template octave_idx_type | |
| 3811 octave_stream::write (const Array<octave_uint16>&, octave_idx_type, | |
| 4944 | 3812 oct_data_conv::data_type, |
| 5275 | 3813 octave_idx_type, oct_mach_info::float_format); |
| 3814 | |
| 3815 template octave_idx_type | |
| 3816 octave_stream::write (const Array<octave_int32>&, octave_idx_type, | |
| 4944 | 3817 oct_data_conv::data_type, |
| 5275 | 3818 octave_idx_type, oct_mach_info::float_format); |
| 3819 | |
| 3820 template octave_idx_type | |
| 3821 octave_stream::write (const Array<octave_uint32>&, octave_idx_type, | |
| 4944 | 3822 oct_data_conv::data_type, |
| 5275 | 3823 octave_idx_type, oct_mach_info::float_format); |
| 3824 | |
| 3825 template octave_idx_type | |
| 3826 octave_stream::write (const Array<octave_int64>&, octave_idx_type, | |
| 4944 | 3827 oct_data_conv::data_type, |
| 5275 | 3828 octave_idx_type, oct_mach_info::float_format); |
| 3829 | |
| 3830 template octave_idx_type | |
| 3831 octave_stream::write (const Array<octave_uint64>&, octave_idx_type, | |
| 4944 | 3832 oct_data_conv::data_type, |
| 5275 | 3833 octave_idx_type, oct_mach_info::float_format); |
| 4944 | 3834 |
| 2117 | 3835 octave_value |
| 3810 | 3836 octave_stream::scanf (const std::string& fmt, const Array<double>& size, |
| 5275 | 3837 octave_idx_type& count, const std::string& who) |
| 2117 | 3838 { |
| 3839 octave_value retval; | |
| 3840 | |
| 5659 | 3841 if (stream_ok ()) |
| 4468 | 3842 retval = rep->scanf (fmt, size, count, who); |
| 2117 | 3843 |
| 3844 return retval; | |
| 3845 } | |
| 3846 | |
| 5279 | 3847 octave_value |
| 3848 octave_stream::scanf (const octave_value& fmt, const Array<double>& size, | |
| 5299 | 3849 octave_idx_type& count, const std::string& who) |
| 5279 | 3850 { |
| 3851 octave_value retval = Matrix (); | |
| 3852 | |
| 3853 if (fmt.is_string ()) | |
| 3854 { | |
| 3855 std::string sfmt = fmt.string_value (); | |
| 3856 | |
| 3857 if (fmt.is_sq_string ()) | |
| 3858 sfmt = do_string_escapes (sfmt); | |
| 3859 | |
| 3860 retval = scanf (sfmt, size, count, who); | |
| 3861 } | |
| 3862 else | |
| 3863 { | |
| 3864 // Note that this is not ::error () ! | |
| 3865 | |
| 3866 error (who + ": format must be a string"); | |
| 3867 } | |
| 3868 | |
| 3869 return retval; | |
| 3870 } | |
| 3871 | |
| 2215 | 3872 octave_value_list |
| 4468 | 3873 octave_stream::oscanf (const std::string& fmt, const std::string& who) |
| 2215 | 3874 { |
| 3875 octave_value_list retval; | |
| 3876 | |
| 5659 | 3877 if (stream_ok ()) |
| 4468 | 3878 retval = rep->oscanf (fmt, who); |
| 2215 | 3879 |
| 3880 return retval; | |
| 3881 } | |
| 3882 | |
| 5279 | 3883 octave_value_list |
| 3884 octave_stream::oscanf (const octave_value& fmt, const std::string& who) | |
| 3885 { | |
| 3886 octave_value_list retval; | |
| 3887 | |
| 3888 if (fmt.is_string ()) | |
| 3889 { | |
| 3890 std::string sfmt = fmt.string_value (); | |
| 3891 | |
| 3892 if (fmt.is_sq_string ()) | |
| 3893 sfmt = do_string_escapes (sfmt); | |
| 3894 | |
| 3895 retval = oscanf (sfmt, who); | |
| 3896 } | |
| 3897 else | |
| 3898 { | |
| 3899 // Note that this is not ::error () ! | |
| 3900 | |
| 3901 error (who + ": format must be a string"); | |
| 3902 } | |
| 3903 | |
| 3904 return retval; | |
| 3905 } | |
| 3906 | |
| 2117 | 3907 int |
| 4468 | 3908 octave_stream::printf (const std::string& fmt, const octave_value_list& args, |
| 3909 const std::string& who) | |
| 2117 | 3910 { |
| 3911 int retval = -1; | |
| 3912 | |
| 5659 | 3913 if (stream_ok ()) |
| 4468 | 3914 retval = rep->printf (fmt, args, who); |
| 2117 | 3915 |
| 3916 return retval; | |
| 3917 } | |
| 3918 | |
| 3919 int | |
| 5279 | 3920 octave_stream::printf (const octave_value& fmt, const octave_value_list& args, |
| 3921 const std::string& who) | |
| 3922 { | |
| 3923 int retval = 0; | |
| 3924 | |
| 3925 if (fmt.is_string ()) | |
| 3926 { | |
| 3927 std::string sfmt = fmt.string_value (); | |
| 3928 | |
| 3929 if (fmt.is_sq_string ()) | |
| 3930 sfmt = do_string_escapes (sfmt); | |
| 3931 | |
| 3932 retval = printf (sfmt, args, who); | |
| 3933 } | |
| 3934 else | |
| 3935 { | |
| 3936 // Note that this is not ::error () ! | |
| 3937 | |
| 3938 error (who + ": format must be a string"); | |
| 3939 } | |
| 3940 | |
| 3941 return retval; | |
| 3942 } | |
| 3943 | |
| 3944 int | |
| 4468 | 3945 octave_stream::puts (const std::string& s, const std::string& who) |
| 2117 | 3946 { |
| 3947 int retval = -1; | |
| 3948 | |
| 5659 | 3949 if (stream_ok ()) |
| 4468 | 3950 retval = rep->puts (s, who); |
| 2117 | 3951 |
| 3952 return retval; | |
| 3953 } | |
| 3954 | |
| 5775 | 3955 // FIXME -- maybe this should work for string arrays too. |
| 2117 | 3956 |
| 3957 int | |
| 4468 | 3958 octave_stream::puts (const octave_value& tc_s, const std::string& who) |
| 2117 | 3959 { |
| 3960 int retval = -1; | |
| 3961 | |
| 3962 if (tc_s.is_string ()) | |
| 3963 { | |
| 3523 | 3964 std::string s = tc_s.string_value (); |
| 5279 | 3965 retval = puts (s, who); |
| 2117 | 3966 } |
| 3967 else | |
| 4468 | 3968 { |
| 3969 // Note that this is not ::error () ! | |
| 3970 | |
| 3971 error (who + ": argument must be a string"); | |
| 3972 } | |
| 2117 | 3973 |
| 3974 return retval; | |
| 3975 } | |
| 3976 | |
| 3977 bool | |
| 3978 octave_stream::eof (void) const | |
| 3979 { | |
| 3980 int retval = -1; | |
| 3981 | |
| 5659 | 3982 if (stream_ok ()) |
| 2117 | 3983 retval = rep->eof (); |
| 3984 | |
| 3985 return retval; | |
| 3986 } | |
| 3987 | |
| 3536 | 3988 std::string |
| 2435 | 3989 octave_stream::error (bool clear, int& err_num) |
| 2117 | 3990 { |
| 5649 | 3991 std::string retval = "invalid stream object"; |
| 3992 | |
| 5659 | 3993 if (stream_ok (false)) |
| 2435 | 3994 retval = rep->error (clear, err_num); |
| 2117 | 3995 |
| 3996 return retval; | |
| 3997 } | |
| 3998 | |
| 3536 | 3999 std::string |
| 3340 | 4000 octave_stream::name (void) const |
| 2117 | 4001 { |
| 3523 | 4002 std::string retval; |
| 2117 | 4003 |
| 5659 | 4004 if (stream_ok ()) |
| 2117 | 4005 retval = rep->name (); |
| 4006 | |
| 4007 return retval; | |
| 4008 } | |
| 4009 | |
| 4010 int | |
| 3340 | 4011 octave_stream::mode (void) const |
| 2117 | 4012 { |
| 4013 int retval = 0; | |
| 4014 | |
| 5659 | 4015 if (stream_ok ()) |
| 2117 | 4016 retval = rep->mode (); |
| 4017 | |
| 4018 return retval; | |
| 4019 } | |
| 4020 | |
| 2317 | 4021 oct_mach_info::float_format |
| 3340 | 4022 octave_stream::float_format (void) const |
| 2117 | 4023 { |
| 4574 | 4024 oct_mach_info::float_format retval = oct_mach_info::flt_fmt_unknown; |
| 2317 | 4025 |
| 5659 | 4026 if (stream_ok ()) |
| 2317 | 4027 retval = rep->float_format (); |
| 2117 | 4028 |
| 4029 return retval; | |
| 4030 } | |
| 4031 | |
| 3536 | 4032 std::string |
| 2117 | 4033 octave_stream::mode_as_string (int mode) |
| 4034 { | |
| 3523 | 4035 std::string retval = "???"; |
| 3775 | 4036 std::ios::openmode in_mode = static_cast<std::ios::openmode> (mode); |
| 4037 | |
| 4038 if (in_mode == std::ios::in) | |
| 4039 retval = "r"; | |
| 4040 else if (in_mode == std::ios::out | |
| 4078 | 4041 || in_mode == (std::ios::out | std::ios::trunc)) |
| 3775 | 4042 retval = "w"; |
| 4078 | 4043 else if (in_mode == (std::ios::out | std::ios::app)) |
| 3775 | 4044 retval = "a"; |
| 4078 | 4045 else if (in_mode == (std::ios::in | std::ios::out)) |
| 3775 | 4046 retval = "r+"; |
| 4078 | 4047 else if (in_mode == (std::ios::in | std::ios::out | std::ios::trunc)) |
| 3775 | 4048 retval = "w+"; |
| 4078 | 4049 else if (in_mode == (std::ios::in | std::ios::out | std::ios::ate)) |
| 3775 | 4050 retval = "a+"; |
| 4078 | 4051 else if (in_mode == (std::ios::in | std::ios::binary)) |
| 3775 | 4052 retval = "rb"; |
| 4078 | 4053 else if (in_mode == (std::ios::out | std::ios::binary) |
| 4054 || in_mode == (std::ios::out | std::ios::trunc | std::ios::binary)) | |
| 3775 | 4055 retval = "wb"; |
| 4078 | 4056 else if (in_mode == (std::ios::out | std::ios::app | std::ios::binary)) |
| 3775 | 4057 retval = "ab"; |
| 4078 | 4058 else if (in_mode == (std::ios::in | std::ios::out | std::ios::binary)) |
| 3775 | 4059 retval = "r+b"; |
| 4078 | 4060 else if (in_mode == (std::ios::in | std::ios::out | std::ios::trunc |
| 4061 | std::ios::binary)) | |
| 3775 | 4062 retval = "w+b"; |
| 4078 | 4063 else if (in_mode == (std::ios::in | std::ios::out | std::ios::ate |
| 4064 | std::ios::binary)) | |
| 3775 | 4065 retval = "a+b"; |
| 2117 | 4066 |
| 4067 return retval; | |
| 4068 } | |
| 4069 | |
| 4070 octave_stream_list *octave_stream_list::instance = 0; | |
| 4071 | |
| 2926 | 4072 bool |
| 4073 octave_stream_list::instance_ok (void) | |
| 4074 { | |
| 4075 bool retval = true; | |
| 4076 | |
| 4077 if (! instance) | |
| 4078 instance = new octave_stream_list (); | |
| 4079 | |
| 4080 if (! instance) | |
| 4081 { | |
| 4082 ::error ("unable to create stream list object!"); | |
| 4083 | |
| 4084 retval = false; | |
| 4085 } | |
| 4086 | |
| 4087 return retval; | |
| 4088 } | |
| 4089 | |
| 5353 | 4090 int |
| 6757 | 4091 octave_stream_list::insert (octave_stream& os) |
| 2926 | 4092 { |
| 5353 | 4093 return (instance_ok ()) ? instance->do_insert (os) : -1; |
| 2926 | 4094 } |
| 4095 | |
| 3340 | 4096 octave_stream |
| 3523 | 4097 octave_stream_list::lookup (int fid, const std::string& who) |
| 2926 | 4098 { |
| 3341 | 4099 return (instance_ok ()) ? instance->do_lookup (fid, who) : octave_stream (); |
| 2926 | 4100 } |
| 4101 | |
| 3340 | 4102 octave_stream |
| 3523 | 4103 octave_stream_list::lookup (const octave_value& fid, const std::string& who) |
| 2926 | 4104 { |
| 3341 | 4105 return (instance_ok ()) ? instance->do_lookup (fid, who) : octave_stream (); |
| 2926 | 4106 } |
| 4107 | |
| 4108 int | |
| 3523 | 4109 octave_stream_list::remove (int fid, const std::string& who) |
| 2926 | 4110 { |
| 3341 | 4111 return (instance_ok ()) ? instance->do_remove (fid, who) : -1; |
| 2926 | 4112 } |
| 4113 | |
| 4114 int | |
| 3523 | 4115 octave_stream_list::remove (const octave_value& fid, const std::string& who) |
| 2926 | 4116 { |
| 3341 | 4117 return (instance_ok ()) ? instance->do_remove (fid, who) : -1; |
| 2926 | 4118 } |
| 4119 | |
| 4120 void | |
|
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|
4121 octave_stream_list::clear (bool flush) |
| 2926 | 4122 { |
| 4123 if (instance) | |
|
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|
4124 instance->do_clear (flush); |
| 2926 | 4125 } |
| 4126 | |
| 4127 string_vector | |
| 4128 octave_stream_list::get_info (int fid) | |
| 4129 { | |
| 4130 return (instance_ok ()) ? instance->do_get_info (fid) : string_vector (); | |
| 4131 } | |
| 4132 | |
| 4133 string_vector | |
| 4134 octave_stream_list::get_info (const octave_value& fid) | |
| 4135 { | |
| 4136 return (instance_ok ()) ? instance->do_get_info (fid) : string_vector (); | |
| 4137 } | |
| 4138 | |
| 3536 | 4139 std::string |
| 2926 | 4140 octave_stream_list::list_open_files (void) |
| 4141 { | |
| 3523 | 4142 return (instance_ok ()) ? instance->do_list_open_files () : std::string (); |
| 2926 | 4143 } |
| 4144 | |
| 4145 octave_value | |
| 4146 octave_stream_list::open_file_numbers (void) | |
| 4147 { | |
| 4148 return (instance_ok ()) | |
| 4149 ? instance->do_open_file_numbers () : octave_value (); | |
| 4150 } | |
| 4151 | |
| 4152 int | |
| 4153 octave_stream_list::get_file_number (const octave_value& fid) | |
| 4154 { | |
| 4155 return (instance_ok ()) ? instance->do_get_file_number (fid) : -1; | |
| 4156 } | |
| 4157 | |
| 5353 | 4158 int |
| 6757 | 4159 octave_stream_list::do_insert (octave_stream& os) |
| 2117 | 4160 { |
| 6757 | 4161 // Insert item with key corresponding to file-descriptor. |
| 4162 | |
| 4163 int stream_number; | |
| 4164 | |
| 4165 if ((stream_number = os.file_number ()) == -1) | |
| 4166 return stream_number; | |
| 4167 | |
| 4168 // Should we test for "(list.find (stream_number) != list.end ()) && | |
| 4169 // list[stream_number].is_open ()" and respond with "error | |
| 4170 // ("internal error: ...")"? It should not happen except for some | |
| 4171 // bug or if the user has opened a stream with an interpreted | |
| 4172 // command, but closed it directly with a system call in an | |
| 4173 // oct-file; then the kernel knows the fd is free, but Octave does | |
| 4174 // not know. If it happens, it should not do harm here to simply | |
| 4175 // overwrite this entry, although the wrong entry might have done | |
| 4176 // harm before. | |
| 4177 | |
| 4178 if (list.size () < list.max_size ()) | |
| 4179 list[stream_number] = os; | |
| 4180 else | |
| 2117 | 4181 { |
| 6757 | 4182 stream_number = -1; |
| 4183 error ("could not create file id"); | |
| 3340 | 4184 } |
| 2117 | 4185 |
| 5353 | 4186 return stream_number; |
| 6757 | 4187 |
| 2117 | 4188 } |
| 4189 | |
| 3341 | 4190 static void |
| 3523 | 4191 gripe_invalid_file_id (int fid, const std::string& who) |
| 3341 | 4192 { |
| 4193 if (who.empty ()) | |
| 4194 ::error ("invalid stream number = %d", fid); | |
| 4195 else | |
| 4196 ::error ("%s: invalid stream number = %d", who.c_str (), fid); | |
| 4197 } | |
| 4198 | |
| 3340 | 4199 octave_stream |
| 3523 | 4200 octave_stream_list::do_lookup (int fid, const std::string& who) const |
| 2117 | 4201 { |
| 3340 | 4202 octave_stream retval; |
| 2117 | 4203 |
| 6757 | 4204 if (fid >= 0) |
| 4205 { | |
|
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|
4206 if (lookup_cache != list.end () && lookup_cache->first == fid) |
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|
4207 retval = lookup_cache->second; |
| 6757 | 4208 else |
|
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|
4209 { |
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|
4210 ostrl_map::const_iterator iter = list.find (fid); |
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|
4211 |
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|
4212 if (iter != list.end ()) |
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diff
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|
4213 { |
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diff
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|
4214 retval = iter->second; |
|
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|
4215 lookup_cache = iter; |
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diff
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|
4216 } |
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|
4217 else |
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parents:
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diff
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|
4218 gripe_invalid_file_id (fid, who); |
|
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diff
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|
4219 } |
| 6757 | 4220 } |
| 3341 | 4221 else |
| 4222 gripe_invalid_file_id (fid, who); | |
| 2117 | 4223 |
| 4224 return retval; | |
| 4225 } | |
| 4226 | |
| 3340 | 4227 octave_stream |
| 3341 | 4228 octave_stream_list::do_lookup (const octave_value& fid, |
| 3523 | 4229 const std::string& who) const |
| 2117 | 4230 { |
| 3340 | 4231 octave_stream retval; |
| 2117 | 4232 |
| 4233 int i = get_file_number (fid); | |
| 4234 | |
| 4235 if (! error_state) | |
| 3341 | 4236 retval = do_lookup (i, who); |
| 2117 | 4237 |
| 4238 return retval; | |
| 4239 } | |
| 4240 | |
| 4241 int | |
| 3523 | 4242 octave_stream_list::do_remove (int fid, const std::string& who) |
| 2117 | 4243 { |
| 4244 int retval = -1; | |
| 4245 | |
| 3531 | 4246 // Can't remove stdin (std::cin), stdout (std::cout), or stderr |
| 4247 // (std::cerr). | |
| 2117 | 4248 |
| 6757 | 4249 if (fid > 2) |
| 2117 | 4250 { |
| 6757 | 4251 ostrl_map::iterator iter = list.find (fid); |
| 4252 | |
| 4253 if (iter != list.end ()) | |
| 2117 | 4254 { |
| 6757 | 4255 octave_stream os = iter->second; |
|
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|
4256 list.erase (iter); |
|
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diff
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|
4257 lookup_cache = list.end (); |
|
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|
4258 |
|
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parents:
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diff
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|
4259 // FIXME: is this check redundant? |
| 6757 | 4260 if (os.is_valid ()) |
| 4261 { | |
| 4262 os.close (); | |
| 4263 retval = 0; | |
| 4264 } | |
| 4265 else | |
| 4266 gripe_invalid_file_id (fid, who); | |
| 2117 | 4267 } |
| 3341 | 4268 else |
| 4269 gripe_invalid_file_id (fid, who); | |
| 2117 | 4270 } |
| 3341 | 4271 else |
| 4272 gripe_invalid_file_id (fid, who); | |
| 2117 | 4273 |
| 4274 return retval; | |
| 4275 } | |
| 4276 | |
| 4277 int | |
| 3523 | 4278 octave_stream_list::do_remove (const octave_value& fid, const std::string& who) |
| 2117 | 4279 { |
| 4280 int retval = -1; | |
| 4281 | |
| 6054 | 4282 if (fid.is_string () && fid.string_value () == "all") |
| 4283 { | |
|
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diff
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|
4284 do_clear (false); |
| 6054 | 4285 |
| 4286 retval = 0; | |
| 4287 } | |
| 4288 else | |
| 4289 { | |
| 4290 int i = get_file_number (fid); | |
| 4291 | |
| 4292 if (! error_state) | |
| 4293 retval = do_remove (i, who); | |
| 4294 } | |
| 2117 | 4295 |
| 4296 return retval; | |
| 4297 } | |
| 4298 | |
| 4299 void | |
|
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|
4300 octave_stream_list::do_clear (bool flush) |
| 2117 | 4301 { |
|
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|
4302 if (flush) |
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|
4303 { |
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|
4304 // Do flush stdout and stderr. |
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|
4305 |
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|
4306 list[0].flush (); |
|
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|
4307 list[1].flush (); |
|
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|
4308 } |
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diff
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|
4309 |
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diff
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|
4310 octave_stream saved_os[3]; |
| 2117 | 4311 // But don't delete them or stdin. |
|
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|
4312 for (ostrl_map::iterator iter = list.begin (); iter != list.end (); iter++) |
| 6757 | 4313 { |
|
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diff
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|
4314 int fid = iter->first; |
|
5d5db7a347c6
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parents:
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diff
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|
4315 octave_stream os = iter->second; |
|
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diff
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|
4316 if (fid < 3) |
|
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diff
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|
4317 saved_os[fid] = os; |
|
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diff
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|
4318 else if (os.is_valid ()) |
|
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diff
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|
4319 os.close (); |
| 6757 | 4320 } |
|
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diff
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|
4321 list.clear (); |
|
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diff
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|
4322 for (int fid = 0; fid < 3; fid++) list[fid] = saved_os[fid]; |
|
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|
4323 lookup_cache = list.end (); |
| 2117 | 4324 } |
| 4325 | |
| 4326 string_vector | |
| 4327 octave_stream_list::do_get_info (int fid) const | |
| 4328 { | |
| 4329 string_vector retval; | |
| 4330 | |
| 3340 | 4331 octave_stream os = do_lookup (fid); |
| 2117 | 4332 |
| 3341 | 4333 if (os.is_valid ()) |
| 2117 | 4334 { |
| 4335 retval.resize (3); | |
| 4336 | |
| 3340 | 4337 retval(0) = os.name (); |
| 4338 retval(1) = octave_stream::mode_as_string (os.mode ()); | |
| 4339 retval(2) = oct_mach_info::float_format_as_string (os.float_format ()); | |
| 2117 | 4340 } |
| 4341 else | |
| 3341 | 4342 ::error ("invalid file id = %d", fid); |
| 2117 | 4343 |
| 4344 return retval; | |
| 4345 } | |
| 4346 | |
| 4347 string_vector | |
| 4348 octave_stream_list::do_get_info (const octave_value& fid) const | |
| 4349 { | |
| 4350 string_vector retval; | |
| 4351 | |
| 4352 int conv_err = 0; | |
| 4353 | |
| 4354 int int_fid = convert_to_valid_int (fid, conv_err); | |
| 4355 | |
| 4356 if (! conv_err) | |
| 4357 retval = do_get_info (int_fid); | |
| 4358 else | |
| 2915 | 4359 ::error ("file id must be a file object or integer value"); |
| 2117 | 4360 |
| 4361 return retval; | |
| 4362 } | |
| 4363 | |
| 3536 | 4364 std::string |
| 2117 | 4365 octave_stream_list::do_list_open_files (void) const |
| 4366 { | |
| 3523 | 4367 std::string retval; |
| 2117 | 4368 |
| 5765 | 4369 std::ostringstream buf; |
| 2117 | 4370 |
| 4371 buf << "\n" | |
| 4372 << " number mode arch name\n" | |
| 4373 << " ------ ---- ---- ----\n"; | |
| 4374 | |
| 6757 | 4375 for (ostrl_map::const_iterator p = list.begin (); p != list.end (); p++) |
| 2117 | 4376 { |
| 6757 | 4377 octave_stream os = p->second; |
| 2117 | 4378 |
| 4326 | 4379 buf << " " |
| 4380 << std::setiosflags (std::ios::right) | |
| 6757 | 4381 << std::setw (4) << p->first << " " |
| 4326 | 4382 << std::setiosflags (std::ios::left) |
| 4383 << std::setw (3) | |
| 4384 << octave_stream::mode_as_string (os.mode ()) | |
| 4385 << " " | |
| 4386 << std::setw (9) | |
| 4387 << oct_mach_info::float_format_as_string (os.float_format ()) | |
| 4388 << " " | |
| 4389 << os.name () << "\n"; | |
| 2117 | 4390 } |
| 4391 | |
| 5765 | 4392 buf << "\n"; |
| 4393 | |
| 4394 retval = buf.str (); | |
| 2117 | 4395 |
| 4396 return retval; | |
| 4397 } | |
| 4398 | |
| 4399 octave_value | |
| 4400 octave_stream_list::do_open_file_numbers (void) const | |
| 4401 { | |
| 6757 | 4402 Matrix retval (1, list.size (), 0.0); |
| 2117 | 4403 |
| 4404 int num_open = 0; | |
| 4405 | |
| 6757 | 4406 for (ostrl_map::const_iterator p = list.begin (); p != list.end (); p++) |
| 2117 | 4407 { |
| 6757 | 4408 // Skip stdin, stdout, and stderr. |
| 4409 | |
| 4410 if (p->first > 2 && p->second) | |
| 4411 retval(0,num_open++) = p->first; | |
| 2117 | 4412 } |
| 4413 | |
| 4414 retval.resize ((num_open > 0), num_open); | |
| 4415 | |
| 4416 return retval; | |
| 4417 } | |
| 4418 | |
| 4419 int | |
| 2609 | 4420 octave_stream_list::do_get_file_number (const octave_value& fid) const |
| 2117 | 4421 { |
| 4422 int retval = -1; | |
| 4423 | |
| 4424 if (fid.is_string ()) | |
| 4425 { | |
| 3523 | 4426 std::string nm = fid.string_value (); |
| 2117 | 4427 |
| 6757 | 4428 for (ostrl_map::const_iterator p = list.begin (); p != list.end (); p++) |
| 2117 | 4429 { |
| 6757 | 4430 // stdin (std::cin), stdout (std::cout), and stderr (std::cerr) |
| 4431 // are unnamed. | |
| 4432 | |
| 4433 if (p->first > 2) | |
| 2117 | 4434 { |
| 6757 | 4435 octave_stream os = p->second; |
| 4436 | |
| 4437 if (os && os.name () == nm) | |
| 4438 { | |
| 4439 retval = p->first; | |
| 4440 break; | |
| 4441 } | |
| 2117 | 4442 } |
| 4443 } | |
| 4444 } | |
| 4445 else | |
| 4446 { | |
| 4447 int conv_err = 0; | |
| 4448 | |
| 4449 int int_fid = convert_to_valid_int (fid, conv_err); | |
| 4450 | |
| 4451 if (conv_err) | |
| 3523 | 4452 ::error ("file id must be a file object, std::string, or integer value"); |
| 2117 | 4453 else |
| 4454 retval = int_fid; | |
| 4455 } | |
| 4456 | |
| 4457 return retval; | |
| 4458 } |