Mercurial > hg > octave-nkf
annotate src/oct-stream.h @ 8950:d865363208d6
include <iosfwd> instead of <iostream> in header files
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Tue, 10 Mar 2009 13:55:52 -0400 |
| parents | eb63fbe60fab |
| children | 531280b07625 |
| rev | line source |
|---|---|
| 2117 | 1 /* |
| 2 | |
| 7017 | 3 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
| 8920 | 4 2005, 2006, 2007, 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 #if !defined (octave_octave_stream_h) | |
| 25 #define octave_octave_stream_h 1 | |
| 26 | |
| 2877 | 27 class Matrix; |
| 28 class string_vector; | |
| 29 class octave_value; | |
| 30 class octave_value_list; | |
| 2117 | 31 |
|
8950
d865363208d6
include <iosfwd> instead of <iostream> in header files
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
32 #include <iosfwd> |
| 5765 | 33 #include <sstream> |
| 2877 | 34 #include <string> |
| 6757 | 35 #include <map> |
| 2117 | 36 |
| 37 #include "Array.h" | |
| 2317 | 38 #include "data-conv.h" |
| 3640 | 39 #include "lo-utils.h" |
| 2317 | 40 #include "mach-info.h" |
| 2117 | 41 |
| 3640 | 42 class |
| 6109 | 43 OCTINTERP_API |
| 2117 | 44 scanf_format_elt |
| 45 { | |
| 3640 | 46 public: |
| 47 | |
| 3483 | 48 enum special_conversion |
| 49 { | |
| 50 whitespace_conversion = 1, | |
| 51 literal_conversion = 2 | |
| 52 }; | |
| 53 | |
| 2215 | 54 scanf_format_elt (const char *txt = 0, int w = 0, bool d = false, |
| 3483 | 55 char typ = '\0', char mod = '\0', |
| 3523 | 56 const std::string& ch_class = std::string ()) |
| 3640 | 57 : text (strsave (txt)), width (w), discard (d), type (typ), |
| 58 modifier (mod), char_class (ch_class) { } | |
| 59 | |
| 60 scanf_format_elt (const scanf_format_elt& e) | |
| 61 : text (strsave (e.text)), width (e.width), discard (e.discard), | |
| 62 type (e.type), modifier (e.modifier), char_class (e.char_class) { } | |
| 2117 | 63 |
| 3640 | 64 scanf_format_elt& operator = (const scanf_format_elt& e) |
| 65 { | |
| 66 if (this != &e) | |
| 67 { | |
| 68 text = strsave (e.text); | |
| 69 width = e.width; | |
| 70 discard = e.discard; | |
| 71 type = e.type; | |
| 72 modifier = e.modifier; | |
| 73 char_class = e.char_class; | |
| 74 } | |
| 2117 | 75 |
| 3640 | 76 return *this; |
| 77 } | |
| 78 | |
| 79 ~scanf_format_elt (void) { delete [] text; } | |
| 80 | |
| 81 // The C-style format string. | |
| 2117 | 82 const char *text; |
| 3640 | 83 |
| 84 // The maximum field width. | |
| 2215 | 85 int width; |
| 3640 | 86 |
| 87 // TRUE if we are not storing the result of this conversion. | |
| 2117 | 88 bool discard; |
| 3640 | 89 |
| 90 // Type of conversion -- `d', `i', `o', `u', `x', `e', `f', `g', | |
| 91 // `c', `s', `p', `%', or `['. | |
| 2117 | 92 char type; |
| 3640 | 93 |
| 94 // A length modifier -- `h', `l', or `L'. | |
| 2117 | 95 char modifier; |
| 3640 | 96 |
| 97 // The class of characters in a `[' format. | |
| 3523 | 98 std::string char_class; |
| 2117 | 99 }; |
| 100 | |
| 101 class | |
| 6109 | 102 OCTINTERP_API |
| 2117 | 103 scanf_format_list |
| 104 { | |
| 105 public: | |
| 106 | |
| 3523 | 107 scanf_format_list (const std::string& fmt = std::string ()); |
| 2117 | 108 |
| 109 ~scanf_format_list (void); | |
| 110 | |
| 111 int num_conversions (void) { return nconv; } | |
| 112 | |
| 2215 | 113 // The length can be different than the number of conversions. |
| 114 // For example, "x %d y %d z" has 2 conversions but the length of | |
| 115 // the list is 3 because of the characters that appear after the | |
| 116 // last conversion. | |
| 117 | |
| 118 int length (void) { return list.length (); } | |
| 119 | |
| 2117 | 120 const scanf_format_elt *first (void) |
| 121 { | |
| 122 curr_idx = 0; | |
| 123 return current (); | |
| 124 } | |
| 125 | |
| 126 const scanf_format_elt *current (void) const | |
| 127 { return list.length () > 0 ? list.elem (curr_idx) : 0; } | |
| 128 | |
| 3640 | 129 const scanf_format_elt *next (bool cycle = true) |
| 2117 | 130 { |
| 131 curr_idx++; | |
| 3640 | 132 |
| 2117 | 133 if (curr_idx >= list.length ()) |
| 3640 | 134 { |
| 135 if (cycle) | |
| 136 curr_idx = 0; | |
| 137 else | |
| 138 return 0; | |
| 139 } | |
| 2117 | 140 return current (); |
| 141 } | |
| 142 | |
| 143 void printme (void) const; | |
| 144 | |
| 145 bool ok (void) const { return (nconv >= 0); } | |
| 146 | |
| 3145 | 147 operator bool () const { return ok (); } |
| 2117 | 148 |
| 149 bool all_character_conversions (void); | |
| 150 | |
| 151 bool all_numeric_conversions (void); | |
| 152 | |
| 153 private: | |
| 154 | |
| 3642 | 155 // Number of conversions specified by this format string, or -1 if |
| 2117 | 156 // invalid conversions have been found. |
| 157 int nconv; | |
| 158 | |
| 159 // Index to current element; | |
| 160 int curr_idx; | |
| 161 | |
| 162 // List of format elements. | |
| 163 Array<scanf_format_elt*> list; | |
| 164 | |
| 165 // Temporary buffer. | |
| 5765 | 166 std::ostringstream *buf; |
| 2117 | 167 |
| 2215 | 168 void add_elt_to_list (int width, bool discard, char type, char modifier, |
| 3640 | 169 int& num_elts, |
| 170 const std::string& char_class = std::string ()); | |
| 2117 | 171 |
| 3523 | 172 void process_conversion (const std::string& s, int& i, int n, int& width, |
| 2215 | 173 bool& discard, char& type, char& modifier, |
| 174 int& num_elts); | |
| 2117 | 175 |
| 3523 | 176 int finish_conversion (const std::string& s, int& i, int n, int& width, |
| 2215 | 177 bool discard, char& type, char modifier, |
| 178 int& num_elts); | |
| 2117 | 179 // No copying! |
| 180 | |
| 181 scanf_format_list (const scanf_format_list&); | |
| 182 | |
| 183 scanf_format_list& operator = (const scanf_format_list&); | |
| 184 }; | |
| 185 | |
| 3640 | 186 class |
| 2117 | 187 printf_format_elt |
| 188 { | |
| 3640 | 189 public: |
| 190 | |
| 191 printf_format_elt (const char *txt = 0, int n = 0, int w = 0, | |
| 192 int p = 0, const std::string& f = std::string (), | |
| 193 char typ = '\0', char mod = '\0') | |
| 194 : text (strsave (txt)), args (n), fw (w), prec (p), flags (f), | |
| 195 type (typ), modifier (mod) { } | |
| 196 | |
| 197 printf_format_elt (const printf_format_elt& e) | |
| 198 : text (strsave (e.text)), args (e.args), fw (e.fw), prec (e.prec), | |
| 199 flags (e.flags), type (e.type), modifier (e.modifier) { } | |
| 200 | |
| 201 printf_format_elt& operator = (const printf_format_elt& e) | |
| 202 { | |
| 203 if (this != &e) | |
| 204 { | |
| 205 text = strsave (e.text); | |
| 206 args = e.args; | |
| 207 fw = e.fw; | |
| 208 prec = e.prec; | |
| 209 flags = e.flags; | |
| 210 type = e.type; | |
| 211 modifier = e.modifier; | |
| 212 } | |
| 2117 | 213 |
| 3640 | 214 return *this; |
| 215 } | |
| 2117 | 216 |
| 3640 | 217 ~printf_format_elt (void) { delete [] text; } |
| 218 | |
| 219 // The C-style format string. | |
| 2117 | 220 const char *text; |
| 3640 | 221 |
| 222 // How many args do we expect to consume? | |
| 2117 | 223 int args; |
| 3640 | 224 |
| 225 // Field width. | |
| 226 int fw; | |
| 227 | |
| 228 // Precision. | |
| 229 int prec; | |
| 230 | |
| 231 // Flags -- `-', `+', ` ', `0', or `#'. | |
| 3642 | 232 std::string flags; |
| 3640 | 233 |
| 234 // Type of conversion -- `d', `i', `o', `x', `X', `u', `c', `s', | |
| 235 // `f', `e', `E', `g', `G', `p', or `%' | |
| 2117 | 236 char type; |
| 3640 | 237 |
| 238 // A length modifier -- `h', `l', or `L'. | |
| 2117 | 239 char modifier; |
| 240 }; | |
| 241 | |
| 242 class | |
| 6109 | 243 OCTINTERP_API |
| 2117 | 244 printf_format_list |
| 245 { | |
| 246 public: | |
| 247 | |
| 3523 | 248 printf_format_list (const std::string& fmt = std::string ()); |
| 2117 | 249 |
| 250 ~printf_format_list (void); | |
| 251 | |
| 252 int num_conversions (void) { return nconv; } | |
| 253 | |
| 254 const printf_format_elt *first (void) | |
| 255 { | |
| 256 curr_idx = 0; | |
| 257 return current (); | |
| 258 } | |
| 259 | |
| 260 const printf_format_elt *current (void) const | |
| 261 { return list.length () > 0 ? list.elem (curr_idx) : 0; } | |
| 262 | |
| 3640 | 263 const printf_format_elt *next (bool cycle = true) |
| 2117 | 264 { |
| 265 curr_idx++; | |
| 3640 | 266 |
| 2117 | 267 if (curr_idx >= list.length ()) |
| 3640 | 268 { |
| 269 if (cycle) | |
| 270 curr_idx = 0; | |
| 271 else | |
| 272 return 0; | |
| 273 } | |
| 274 | |
| 2117 | 275 return current (); |
| 276 } | |
| 277 | |
| 3640 | 278 bool last_elt_p (void) { return (curr_idx + 1 == list.length ()); } |
| 279 | |
| 2117 | 280 void printme (void) const; |
| 281 | |
| 282 bool ok (void) const { return (nconv >= 0); } | |
| 283 | |
| 3145 | 284 operator bool () const { return ok (); } |
| 2117 | 285 |
| 286 private: | |
| 287 | |
| 3642 | 288 // Number of conversions specified by this format string, or -1 if |
| 2117 | 289 // invalid conversions have been found. |
| 290 int nconv; | |
| 291 | |
| 292 // Index to current element; | |
| 293 int curr_idx; | |
| 294 | |
| 295 // List of format elements. | |
| 296 Array<printf_format_elt*> list; | |
| 297 | |
| 298 // Temporary buffer. | |
| 5765 | 299 std::ostringstream *buf; |
| 2117 | 300 |
| 3640 | 301 void add_elt_to_list (int args, const std::string& flags, int fw, |
| 302 int prec, char type, char modifier, | |
| 303 int& num_elts); | |
| 304 | |
| 305 void process_conversion (const std::string& s, int& i, int n, | |
| 306 int& args, std::string& flags, int& fw, | |
| 307 int& prec, char& modifier, char& type, | |
| 308 int& num_elts); | |
| 309 | |
| 3523 | 310 void finish_conversion (const std::string& s, int& i, int args, |
| 3640 | 311 const std::string& flags, int fw, int prec, |
| 2117 | 312 char modifier, char& type, int& num_elts); |
| 313 | |
| 314 // No copying! | |
| 315 | |
| 316 printf_format_list (const printf_format_list&); | |
| 317 | |
| 318 printf_format_list& operator = (const printf_format_list&); | |
| 319 }; | |
| 320 | |
| 321 // Provide an interface for Octave streams. | |
| 322 | |
| 323 class | |
| 6109 | 324 OCTINTERP_API |
| 2117 | 325 octave_base_stream |
| 326 { | |
| 327 friend class octave_stream; | |
| 328 | |
| 329 public: | |
| 330 | |
| 3544 | 331 octave_base_stream (std::ios::openmode arg_md = std::ios::in|std::ios::out, |
| 5015 | 332 oct_mach_info::float_format ff |
| 333 = oct_mach_info::native_float_format ()) | |
| 3340 | 334 : count (0), md (arg_md), flt_fmt (ff), fail (false), open_state (true) |
| 335 { } | |
| 2117 | 336 |
| 337 virtual ~octave_base_stream (void) { } | |
| 338 | |
| 339 // The remaining functions are not specific to input or output only, | |
| 340 // and must be provided by the derived classes. | |
| 341 | |
| 342 // Position a stream at OFFSET relative to ORIGIN. | |
| 343 | |
| 4797 | 344 virtual int seek (long offset, int origin) = 0; |
| 2117 | 345 |
| 346 // Return current stream position. | |
| 347 | |
| 4797 | 348 virtual long tell (void) = 0; |
| 2117 | 349 |
| 3340 | 350 // Return TRUE if EOF has been reached on this stream. |
| 2117 | 351 |
| 352 virtual bool eof (void) const = 0; | |
| 353 | |
| 354 // The name of the file. | |
| 355 | |
| 3523 | 356 virtual std::string name (void) const = 0; |
| 2117 | 357 |
| 358 // If the derived class provides this function and it returns a | |
| 359 // pointer to a valid istream, scanf(), read(), getl(), and gets() | |
| 360 // will automatically work for this stream. | |
| 361 | |
| 3523 | 362 virtual std::istream *input_stream (void) { return 0; } |
| 2117 | 363 |
| 364 // If the derived class provides this function and it returns a | |
| 365 // pointer to a valid ostream, flush(), write(), and printf() will | |
| 366 // automatically work for this stream. | |
| 367 | |
| 3523 | 368 virtual std::ostream *output_stream (void) { return 0; } |
| 2117 | 369 |
| 3340 | 370 // Return TRUE if this stream is open. |
| 371 | |
| 372 bool is_open (void) const { return open_state; } | |
| 373 | |
| 3652 | 374 virtual void do_close (void) { } |
| 375 | |
| 376 void close (void) | |
| 377 { | |
| 378 if (is_open ()) | |
| 379 { | |
| 380 open_state = false; | |
| 381 do_close (); | |
| 382 } | |
| 383 } | |
| 3340 | 384 |
| 3148 | 385 int file_number (void); |
| 3145 | 386 |
| 2117 | 387 bool ok (void) const { return ! fail; } |
| 388 | |
| 389 // Return current error message for this stream. | |
| 390 | |
| 3523 | 391 std::string error (bool clear, int& err_num); |
| 2117 | 392 |
| 393 protected: | |
| 394 | |
| 3340 | 395 int mode (void) const { return md; } |
| 2117 | 396 |
| 3340 | 397 oct_mach_info::float_format float_format (void) const { return flt_fmt; } |
| 2117 | 398 |
| 399 // Set current error state and set fail to TRUE. | |
| 400 | |
| 3523 | 401 void error (const std::string& msg); |
| 4468 | 402 void error (const std::string& who, const std::string& msg); |
| 2117 | 403 |
| 404 // Clear any error message and set fail to FALSE. | |
| 405 | |
| 406 void clear (void); | |
| 407 | |
| 4889 | 408 // Clear stream state. |
| 409 | |
| 410 void clearerr (void); | |
| 411 | |
| 2117 | 412 private: |
| 413 | |
| 3340 | 414 // A reference count. |
| 5275 | 415 octave_idx_type count; |
| 3340 | 416 |
| 2117 | 417 // The permission bits for the file. Should be some combination of |
| 3544 | 418 // std::ios::open_mode bits. |
| 2117 | 419 int md; |
| 420 | |
| 421 // Data format. | |
| 2317 | 422 oct_mach_info::float_format flt_fmt; |
| 2117 | 423 |
| 424 // TRUE if an error has occurred. | |
| 425 bool fail; | |
| 426 | |
| 3340 | 427 // TRUE if this stream is open. |
| 428 bool open_state; | |
| 429 | |
| 2117 | 430 // Should contain error message if fail is TRUE. |
| 3523 | 431 std::string errmsg; |
| 2117 | 432 |
| 433 // Functions that are defined for all input streams (input streams | |
| 434 // are those that define is). | |
| 435 | |
| 5275 | 436 std::string do_gets (octave_idx_type max_len, bool& err, bool strip_newline, |
| 4468 | 437 const std::string& who /* = "gets" */); |
| 2117 | 438 |
| 5275 | 439 std::string getl (octave_idx_type max_len, bool& err, const std::string& who /* = "getl" */); |
| 440 std::string gets (octave_idx_type max_len, bool& err, const std::string& who /* = "gets" */); | |
| 2117 | 441 |
| 5275 | 442 octave_value do_scanf (scanf_format_list& fmt_list, octave_idx_type nr, octave_idx_type nc, |
| 443 bool one_elt_size_spec, octave_idx_type& count, | |
| 4468 | 444 const std::string& who /* = "scanf" */); |
| 2117 | 445 |
| 4468 | 446 octave_value scanf (const std::string& fmt, const Array<double>& size, |
| 5275 | 447 octave_idx_type& count, const std::string& who /* = "scanf" */); |
| 2117 | 448 |
| 4468 | 449 bool do_oscanf (const scanf_format_elt *elt, octave_value&, |
| 450 const std::string& who /* = "scanf" */); | |
| 2117 | 451 |
| 4468 | 452 octave_value_list oscanf (const std::string& fmt, |
| 453 const std::string& who /* = "scanf" */); | |
| 2215 | 454 |
| 2117 | 455 // Functions that are defined for all output streams (output streams |
| 456 // are those that define os). | |
| 457 | |
| 458 int flush (void); | |
| 459 | |
| 4468 | 460 int do_printf (printf_format_list& fmt_list, const octave_value_list& args, |
| 461 const std::string& who /* = "printf" */); | |
| 2117 | 462 |
| 4468 | 463 int printf (const std::string& fmt, const octave_value_list& args, |
| 464 const std::string& who /* = "printf" */); | |
| 2117 | 465 |
| 4468 | 466 int puts (const std::string& s, const std::string& who /* = "puts" */); |
| 2117 | 467 |
| 468 // We can always do this in terms of seek(), so the derived class | |
| 469 // only has to provide that. | |
| 470 | |
| 4468 | 471 void invalid_operation (const std::string& who, const char *rw); |
| 2117 | 472 |
| 473 // No copying! | |
| 474 | |
| 475 octave_base_stream (const octave_base_stream&); | |
| 476 | |
| 477 octave_base_stream& operator = (const octave_base_stream&); | |
| 478 }; | |
| 479 | |
| 480 class | |
| 6109 | 481 OCTINTERP_API |
| 2117 | 482 octave_stream |
| 483 { | |
| 484 public: | |
| 485 | |
| 3340 | 486 octave_stream (octave_base_stream *bs = 0); |
| 487 | |
| 488 ~octave_stream (void); | |
| 2117 | 489 |
| 3340 | 490 octave_stream (const octave_stream&); |
| 491 | |
| 492 octave_stream& operator = (const octave_stream&); | |
| 2117 | 493 |
| 494 int flush (void); | |
| 495 | |
| 5275 | 496 std::string getl (octave_idx_type max_len, bool& err, const std::string& who /* = "getl" */); |
| 4468 | 497 std::string getl (const octave_value& max_len, bool& err, |
| 498 const std::string& who /* = "getl" */); | |
| 2117 | 499 |
| 5275 | 500 std::string gets (octave_idx_type max_len, bool& err, const std::string& who /* = "gets" */); |
| 4468 | 501 std::string gets (const octave_value& max_len, bool& err, |
| 502 const std::string& who /* = "gets" */); | |
| 2117 | 503 |
| 4797 | 504 int seek (long offset, int origin); |
| 2117 | 505 int seek (const octave_value& offset, const octave_value& origin); |
| 506 | |
| 4797 | 507 long tell (void); |
| 2117 | 508 |
| 509 int rewind (void); | |
| 510 | |
| 3340 | 511 bool is_open (void) const; |
| 512 | |
| 513 void close (void); | |
| 514 | |
| 5275 | 515 octave_value read (const Array<double>& size, octave_idx_type block_size, |
| 4944 | 516 oct_data_conv::data_type input_type, |
| 517 oct_data_conv::data_type output_type, | |
| 5275 | 518 octave_idx_type skip, oct_mach_info::float_format flt_fmt, |
| 519 octave_idx_type& count); | |
| 2117 | 520 |
| 5275 | 521 octave_idx_type write (const octave_value& data, octave_idx_type block_size, |
| 4944 | 522 oct_data_conv::data_type output_type, |
| 5275 | 523 octave_idx_type skip, oct_mach_info::float_format flt_fmt); |
| 4944 | 524 |
| 525 template <class T> | |
| 5275 | 526 octave_idx_type write (const Array<T>&, octave_idx_type block_size, |
| 4944 | 527 oct_data_conv::data_type output_type, |
| 5275 | 528 octave_idx_type skip, oct_mach_info::float_format flt_fmt); |
| 2117 | 529 |
| 4468 | 530 octave_value scanf (const std::string& fmt, const Array<double>& size, |
| 5275 | 531 octave_idx_type& count, const std::string& who /* = "scanf" */); |
| 2117 | 532 |
| 5279 | 533 octave_value scanf (const octave_value& fmt, const Array<double>& size, |
| 5299 | 534 octave_idx_type& count, const std::string& who /* = "scanf" */); |
| 5279 | 535 |
| 4468 | 536 octave_value_list oscanf (const std::string& fmt, |
| 537 const std::string& who /* = "scanf" */); | |
| 2215 | 538 |
| 5279 | 539 octave_value_list oscanf (const octave_value& fmt, |
| 540 const std::string& who /* = "scanf" */); | |
| 541 | |
| 4468 | 542 int printf (const std::string& fmt, const octave_value_list& args, |
| 543 const std::string& who /* = "printf" */); | |
| 2117 | 544 |
| 5279 | 545 int printf (const octave_value& fmt, const octave_value_list& args, |
| 546 const std::string& who /* = "printf" */); | |
| 547 | |
| 4468 | 548 int puts (const std::string& s, const std::string& who /* = "puts" */); |
| 549 int puts (const octave_value& s, const std::string& who /* = "puts" */); | |
| 2117 | 550 |
| 551 bool eof (void) const; | |
| 552 | |
| 3523 | 553 std::string error (bool clear, int& err_num); |
| 2117 | 554 |
| 3523 | 555 std::string error (bool clear = false) |
| 2117 | 556 { |
| 2435 | 557 int err_num; |
| 558 return error (clear, err_num); | |
| 2117 | 559 } |
| 560 | |
| 4799 | 561 // Set the error message and state. |
| 562 | |
| 563 void error (const std::string& msg) | |
| 564 { | |
| 565 if (rep) | |
| 566 rep->error (msg); | |
| 567 } | |
| 568 | |
| 569 void error (const char *msg) { error (std::string (msg)); } | |
| 570 | |
| 3148 | 571 int file_number (void) { return rep ? rep->file_number () : -1; } |
| 3145 | 572 |
| 3340 | 573 bool is_valid (void) const { return (rep != 0); } |
| 574 | |
| 2117 | 575 bool ok (void) const { return rep && rep->ok (); } |
| 576 | |
| 3145 | 577 operator bool () const { return ok (); } |
| 2117 | 578 |
| 3523 | 579 std::string name (void) const; |
| 2117 | 580 |
| 3340 | 581 int mode (void) const; |
| 2117 | 582 |
| 3340 | 583 oct_mach_info::float_format float_format (void) const; |
| 2117 | 584 |
| 3523 | 585 static std::string mode_as_string (int mode); |
| 2117 | 586 |
| 6757 | 587 std::istream *input_stream (void) |
| 588 { | |
| 589 return rep ? rep->input_stream () : 0; | |
| 590 } | |
| 2902 | 591 |
| 6757 | 592 std::ostream *output_stream (void) |
| 593 { | |
| 594 return rep ? rep->output_stream () : 0; | |
| 595 } | |
| 2902 | 596 |
| 4889 | 597 void clearerr (void) { if (rep) rep->clearerr (); } |
| 598 | |
| 2117 | 599 private: |
| 600 | |
| 601 // The actual representation of this stream. | |
| 602 octave_base_stream *rep; | |
| 603 | |
| 5659 | 604 bool stream_ok (bool clear = true) const |
| 605 { | |
| 606 bool retval = true; | |
| 607 | |
| 608 if (rep) | |
| 609 { | |
| 610 if (clear) | |
| 611 rep->clear (); | |
| 612 } | |
| 613 else | |
| 614 retval = false; | |
| 615 | |
| 616 return retval; | |
| 617 } | |
| 4944 | 618 |
| 619 void invalid_operation (const std::string& who, const char *rw) | |
| 620 { | |
| 621 if (rep) | |
| 622 rep->invalid_operation (who, rw); | |
| 623 } | |
| 2117 | 624 }; |
| 625 | |
| 626 class | |
| 6109 | 627 OCTINTERP_API |
| 2117 | 628 octave_stream_list |
| 629 { | |
| 630 protected: | |
| 631 | |
|
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parents:
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changeset
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632 octave_stream_list (void) : list (), lookup_cache (list.end ()) { } |
| 2117 | 633 |
| 634 public: | |
| 635 | |
| 636 ~octave_stream_list (void) { } | |
| 637 | |
| 2926 | 638 static bool instance_ok (void); |
| 639 | |
| 6757 | 640 static int insert (octave_stream& os); |
| 2117 | 641 |
| 4468 | 642 static octave_stream |
| 643 lookup (int fid, const std::string& who = std::string ()); | |
| 644 | |
| 645 static octave_stream | |
| 646 lookup (const octave_value& fid, const std::string& who = std::string ()); | |
| 2117 | 647 |
| 3523 | 648 static int remove (int fid, const std::string& who = std::string ()); |
| 3341 | 649 static int remove (const octave_value& fid, |
| 3523 | 650 const std::string& who = std::string ()); |
| 2117 | 651 |
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parents:
7017
diff
changeset
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652 static void clear (bool flush = true); |
| 2117 | 653 |
| 654 static string_vector get_info (int fid); | |
| 655 static string_vector get_info (const octave_value& fid); | |
| 656 | |
| 3523 | 657 static std::string list_open_files (void); |
| 2117 | 658 |
| 659 static octave_value open_file_numbers (void); | |
| 660 | |
| 2609 | 661 static int get_file_number (const octave_value& fid); |
| 662 | |
| 2117 | 663 private: |
| 664 | |
| 6757 | 665 typedef std::map<int, octave_stream> ostrl_map; |
| 2117 | 666 |
| 6757 | 667 ostrl_map list; |
| 2117 | 668 |
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Jaroslav Hajek <highegg@gmail.com>
parents:
7017
diff
changeset
|
669 mutable ostrl_map::const_iterator lookup_cache; |
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5d5db7a347c6
erase closed files from file list & cache lookup
Jaroslav Hajek <highegg@gmail.com>
parents:
7017
diff
changeset
|
670 |
| 2117 | 671 static octave_stream_list *instance; |
| 672 | |
| 6757 | 673 int do_insert (octave_stream& os); |
| 2117 | 674 |
| 3523 | 675 octave_stream do_lookup (int fid, const std::string& who = std::string ()) const; |
| 3341 | 676 octave_stream do_lookup (const octave_value& fid, |
| 3523 | 677 const std::string& who = std::string ()) const; |
| 2117 | 678 |
| 3523 | 679 int do_remove (int fid, const std::string& who = std::string ()); |
| 680 int do_remove (const octave_value& fid, const std::string& who = std::string ()); | |
| 2117 | 681 |
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Jaroslav Hajek <highegg@gmail.com>
parents:
7017
diff
changeset
|
682 void do_clear (bool flush = true); |
| 2117 | 683 |
| 684 string_vector do_get_info (int fid) const; | |
| 685 string_vector do_get_info (const octave_value& fid) const; | |
| 686 | |
| 3523 | 687 std::string do_list_open_files (void) const; |
| 2117 | 688 |
| 689 octave_value do_open_file_numbers (void) const; | |
| 690 | |
| 2609 | 691 int do_get_file_number (const octave_value& fid) const; |
| 2117 | 692 }; |
| 693 | |
| 694 #endif | |
| 695 | |
| 696 /* | |
| 697 ;;; Local Variables: *** | |
| 698 ;;; mode: C++ *** | |
| 699 ;;; End: *** | |
| 700 */ |