|
2117
|
1 /* |
|
|
2 |
|
2847
|
3 Copyright (C) 1996, 1997 John W. Eaton |
|
2117
|
4 |
|
|
5 This file is part of Octave. |
|
|
6 |
|
|
7 Octave is free software; you can redistribute it and/or modify it |
|
|
8 under the terms of the GNU General Public License as published by the |
|
|
9 Free Software Foundation; either version 2, or (at your option) any |
|
|
10 later version. |
|
|
11 |
|
|
12 Octave is distributed in the hope that it will be useful, but WITHOUT |
|
|
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
|
|
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
|
|
15 for more details. |
|
|
16 |
|
|
17 You should have received a copy of the GNU General Public License |
|
|
18 along with Octave; see the file COPYING. If not, write to the Free |
|
|
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
|
|
20 |
|
|
21 */ |
|
|
22 |
|
|
23 #ifdef HAVE_CONFIG_H |
|
|
24 #include <config.h> |
|
|
25 #endif |
|
|
26 |
|
3268
|
27 #include <cassert> |
|
2215
|
28 #include <cstring> |
|
|
29 |
|
3503
|
30 #include <iomanip> |
|
3559
|
31 #include <fstream> |
|
3535
|
32 #include <string> |
|
2117
|
33 |
|
|
34 #include "lo-ieee.h" |
|
|
35 #include "lo-mappers.h" |
|
4051
|
36 #include "lo-sstream.h" |
|
2117
|
37 #include "lo-utils.h" |
|
|
38 #include "str-vec.h" |
|
4153
|
39 #include "quit.h" |
|
2117
|
40 |
|
|
41 #include "error.h" |
|
3342
|
42 #include "input.h" |
|
3775
|
43 #include "oct-stdstrm.h" |
|
2117
|
44 #include "oct-stream.h" |
|
2877
|
45 #include "oct-obj.h" |
|
2117
|
46 #include "utils.h" |
|
|
47 |
|
|
48 // Possible values for conv_err: |
|
|
49 // |
|
|
50 // 1 : not a real scalar |
|
2902
|
51 // 2 : value is NaN |
|
|
52 // 3 : value is not an integer |
|
2117
|
53 |
|
|
54 static int |
|
|
55 convert_to_valid_int (const octave_value& tc, int& conv_err) |
|
|
56 { |
|
|
57 int retval = 0; |
|
|
58 |
|
|
59 conv_err = 0; |
|
|
60 |
|
2902
|
61 double dval = tc.double_value (); |
|
|
62 |
|
|
63 if (! error_state) |
|
2117
|
64 { |
|
4693
|
65 if (! lo_ieee_is_NaN_or_NA (dval)) |
|
2117
|
66 { |
|
2902
|
67 int ival = NINT (dval); |
|
|
68 |
|
|
69 if (ival == dval) |
|
|
70 retval = ival; |
|
2117
|
71 else |
|
|
72 conv_err = 3; |
|
|
73 } |
|
|
74 else |
|
|
75 conv_err = 2; |
|
|
76 } |
|
|
77 else |
|
|
78 conv_err = 1; |
|
|
79 |
|
|
80 return retval; |
|
|
81 } |
|
|
82 |
|
|
83 static int |
|
4468
|
84 get_size (double d, const std::string& who) |
|
2117
|
85 { |
|
|
86 int retval = -1; |
|
|
87 |
|
4693
|
88 if (! lo_ieee_is_NaN_or_NA (d)) |
|
2117
|
89 { |
|
|
90 if (! xisinf (d)) |
|
|
91 { |
|
3268
|
92 if (d >= 0.0) |
|
2117
|
93 retval = NINT (d); |
|
|
94 else |
|
|
95 ::error ("%s: negative value invalid as size specification", |
|
4468
|
96 who.c_str ()); |
|
2117
|
97 } |
|
|
98 else |
|
|
99 retval = -1; |
|
|
100 } |
|
|
101 else |
|
4468
|
102 ::error ("%s: NaN is invalid as size specification", who.c_str ()); |
|
2117
|
103 |
|
|
104 return retval; |
|
|
105 } |
|
|
106 |
|
|
107 static void |
|
3810
|
108 get_size (const Array<double>& size, int& nr, int& nc, bool& one_elt_size_spec, |
|
4468
|
109 const std::string& who) |
|
2117
|
110 { |
|
|
111 nr = -1; |
|
|
112 nc = -1; |
|
|
113 |
|
3268
|
114 one_elt_size_spec = false; |
|
|
115 |
|
2117
|
116 double dnr = -1.0; |
|
|
117 double dnc = -1.0; |
|
|
118 |
|
3810
|
119 int sz_len = size.length (); |
|
|
120 |
|
|
121 if (sz_len == 1) |
|
2601
|
122 { |
|
3268
|
123 one_elt_size_spec = true; |
|
|
124 |
|
3810
|
125 dnr = size (0); |
|
4293
|
126 |
|
|
127 dnc = (dnr == 0.0) ? 0.0 : 1.0; |
|
2601
|
128 } |
|
3810
|
129 else if (sz_len == 2) |
|
2117
|
130 { |
|
3810
|
131 dnr = size (0); |
|
|
132 |
|
|
133 if (! xisinf (dnr)) |
|
|
134 dnc = size (1); |
|
|
135 else |
|
4468
|
136 ::error ("%s: invalid size specification", who.c_str ()); |
|
2117
|
137 } |
|
|
138 else |
|
4468
|
139 ::error ("%s: invalid size specification", who.c_str ()); |
|
2117
|
140 |
|
|
141 if (! error_state) |
|
|
142 { |
|
4468
|
143 nr = get_size (dnr, who); |
|
2117
|
144 |
|
3268
|
145 if (! error_state && dnc >= 0.0) |
|
4468
|
146 nc = get_size (dnc, who); |
|
2117
|
147 } |
|
|
148 } |
|
|
149 |
|
3523
|
150 scanf_format_list::scanf_format_list (const std::string& s) |
|
2117
|
151 : nconv (0), curr_idx (0), list (16), buf (0) |
|
|
152 { |
|
|
153 int num_elts = 0; |
|
|
154 |
|
|
155 int n = s.length (); |
|
|
156 |
|
|
157 int i = 0; |
|
|
158 |
|
2215
|
159 int width = 0; |
|
2117
|
160 bool discard = false; |
|
|
161 char modifier = '\0'; |
|
|
162 char type = '\0'; |
|
|
163 |
|
|
164 bool have_more = true; |
|
|
165 |
|
|
166 while (i < n) |
|
|
167 { |
|
|
168 have_more = true; |
|
|
169 |
|
|
170 if (! buf) |
|
4051
|
171 buf = new OSSTREAM (); |
|
2117
|
172 |
|
|
173 if (s[i] == '%') |
|
|
174 { |
|
3483
|
175 // Process percent-escape conversion type. |
|
|
176 |
|
2215
|
177 process_conversion (s, i, n, width, discard, type, modifier, |
|
|
178 num_elts); |
|
2117
|
179 have_more = (buf != 0); |
|
|
180 } |
|
3483
|
181 else if (isspace (s[i])) |
|
2117
|
182 { |
|
3483
|
183 type = scanf_format_elt::whitespace_conversion; |
|
|
184 |
|
2215
|
185 width = 0; |
|
2117
|
186 discard = false; |
|
|
187 modifier = '\0'; |
|
3483
|
188 *buf << " "; |
|
|
189 |
|
|
190 while (++i < n && isspace (s[i])) |
|
|
191 /* skip whitespace */; |
|
|
192 |
|
|
193 add_elt_to_list (width, discard, type, modifier, num_elts); |
|
|
194 |
|
|
195 have_more = false; |
|
|
196 } |
|
|
197 else |
|
|
198 { |
|
|
199 type = scanf_format_elt::literal_conversion; |
|
|
200 |
|
|
201 width = 0; |
|
|
202 discard = false; |
|
|
203 modifier = '\0'; |
|
|
204 |
|
|
205 while (i < n && ! isspace (s[i]) && s[i] != '%') |
|
|
206 *buf << s[i++]; |
|
|
207 |
|
|
208 add_elt_to_list (width, discard, type, modifier, num_elts); |
|
|
209 |
|
|
210 have_more = false; |
|
2117
|
211 } |
|
|
212 |
|
|
213 if (nconv < 0) |
|
|
214 { |
|
|
215 have_more = false; |
|
|
216 break; |
|
|
217 } |
|
|
218 } |
|
|
219 |
|
|
220 if (have_more) |
|
2215
|
221 add_elt_to_list (width, discard, type, modifier, num_elts); |
|
2117
|
222 |
|
|
223 list.resize (num_elts); |
|
|
224 |
|
|
225 delete buf; |
|
|
226 } |
|
|
227 |
|
|
228 scanf_format_list::~scanf_format_list (void) |
|
|
229 { |
|
|
230 int n = list.length (); |
|
|
231 |
|
|
232 for (int i = 0; i < n; i++) |
|
|
233 { |
|
3340
|
234 scanf_format_elt *elt = list(i); |
|
2117
|
235 delete elt; |
|
|
236 } |
|
|
237 } |
|
|
238 |
|
|
239 void |
|
2215
|
240 scanf_format_list::add_elt_to_list (int width, bool discard, char type, |
|
3483
|
241 char modifier, int& num_elts, |
|
3523
|
242 const std::string& char_class) |
|
2117
|
243 { |
|
|
244 if (buf) |
|
|
245 { |
|
4051
|
246 *buf << OSSTREAM_ENDS; |
|
|
247 |
|
|
248 std::string text = OSSTREAM_STR (*buf); |
|
|
249 |
|
|
250 OSSTREAM_FREEZE (*buf); |
|
|
251 |
|
|
252 if (! text.empty ()) |
|
2117
|
253 { |
|
4051
|
254 scanf_format_elt *elt |
|
|
255 = new scanf_format_elt (text.c_str (), width, discard, type, |
|
|
256 modifier, char_class); |
|
|
257 |
|
|
258 if (num_elts == list.length ()) |
|
|
259 list.resize (2 * num_elts); |
|
|
260 |
|
|
261 list(num_elts++) = elt; |
|
2117
|
262 } |
|
|
263 |
|
|
264 delete buf; |
|
|
265 buf = 0; |
|
|
266 } |
|
|
267 } |
|
|
268 |
|
3535
|
269 static std::string |
|
3523
|
270 expand_char_class (const std::string& s) |
|
3483
|
271 { |
|
3523
|
272 std::string retval; |
|
3483
|
273 |
|
|
274 size_t len = s.length (); |
|
|
275 |
|
|
276 size_t i = 0; |
|
|
277 |
|
|
278 while (i < len) |
|
|
279 { |
|
|
280 unsigned char c = s[i++]; |
|
|
281 |
|
|
282 if (c == '-' && i > 1 && i < len |
|
|
283 && (unsigned char) s[i-2] <= (unsigned char) s[i]) |
|
|
284 { |
|
|
285 // Add all characters from the range except the first (we |
|
|
286 // already added it below). |
|
|
287 |
|
|
288 for (c = s[i-2]+1; c < s[i]; c++) |
|
|
289 retval += c; |
|
|
290 } |
|
|
291 else |
|
|
292 { |
|
|
293 // Add the character to the class. Only add '-' if it is |
|
|
294 // the last character in the class. |
|
|
295 |
|
|
296 if (c != '-' || i == len) |
|
|
297 retval += c; |
|
|
298 } |
|
|
299 } |
|
|
300 |
|
|
301 return retval; |
|
|
302 } |
|
|
303 |
|
2117
|
304 void |
|
3523
|
305 scanf_format_list::process_conversion (const std::string& s, int& i, int n, |
|
2215
|
306 int& width, bool& discard, char& type, |
|
2117
|
307 char& modifier, int& num_elts) |
|
|
308 { |
|
2215
|
309 width = 0; |
|
2117
|
310 discard = false; |
|
|
311 modifier = '\0'; |
|
|
312 type = '\0'; |
|
|
313 |
|
|
314 *buf << s[i++]; |
|
|
315 |
|
|
316 bool have_width = false; |
|
|
317 |
|
|
318 while (i < n) |
|
|
319 { |
|
|
320 switch (s[i]) |
|
|
321 { |
|
|
322 case '*': |
|
|
323 if (discard) |
|
|
324 nconv = -1; |
|
|
325 else |
|
|
326 { |
|
|
327 discard = true; |
|
|
328 *buf << s[i++]; |
|
|
329 } |
|
|
330 break; |
|
|
331 |
|
|
332 case '0': case '1': case '2': case '3': case '4': |
|
|
333 case '5': case '6': case '7': case '8': case '9': |
|
|
334 if (have_width) |
|
|
335 nconv = -1; |
|
|
336 else |
|
|
337 { |
|
2215
|
338 char c = s[i++]; |
|
|
339 width = width * 10 + c - '0'; |
|
2117
|
340 have_width = true; |
|
2215
|
341 *buf << c; |
|
2117
|
342 while (i < n && isdigit (s[i])) |
|
2215
|
343 { |
|
|
344 c = s[i++]; |
|
|
345 width = width * 10 + c - '0'; |
|
|
346 *buf << c; |
|
|
347 } |
|
2117
|
348 } |
|
|
349 break; |
|
|
350 |
|
|
351 case 'h': case 'l': case 'L': |
|
|
352 if (modifier != '\0') |
|
|
353 nconv = -1; |
|
|
354 else |
|
2663
|
355 modifier = s[i++]; |
|
2117
|
356 break; |
|
|
357 |
|
|
358 case 'd': case 'i': case 'o': case 'u': case 'x': |
|
|
359 if (modifier == 'L') |
|
|
360 { |
|
|
361 nconv = -1; |
|
|
362 break; |
|
|
363 } |
|
|
364 goto fini; |
|
|
365 |
|
|
366 case 'e': case 'f': case 'g': |
|
|
367 if (modifier == 'h') |
|
|
368 { |
|
|
369 nconv = -1; |
|
|
370 break; |
|
|
371 } |
|
2663
|
372 |
|
|
373 // No float or long double conversions, thanks. |
|
|
374 *buf << 'l'; |
|
|
375 |
|
2117
|
376 goto fini; |
|
|
377 |
|
|
378 case 'c': case 's': case 'p': case '%': case '[': |
|
|
379 if (modifier != '\0') |
|
|
380 { |
|
|
381 nconv = -1; |
|
|
382 break; |
|
|
383 } |
|
|
384 goto fini; |
|
|
385 |
|
|
386 fini: |
|
|
387 { |
|
2215
|
388 if (finish_conversion (s, i, n, width, discard, type, |
|
2117
|
389 modifier, num_elts) == 0) |
|
|
390 return; |
|
|
391 } |
|
|
392 break; |
|
|
393 |
|
|
394 default: |
|
|
395 nconv = -1; |
|
|
396 break; |
|
|
397 } |
|
|
398 |
|
|
399 if (nconv < 0) |
|
|
400 break; |
|
|
401 } |
|
|
402 |
|
|
403 nconv = -1; |
|
|
404 } |
|
|
405 |
|
|
406 int |
|
3523
|
407 scanf_format_list::finish_conversion (const std::string& s, int& i, int n, |
|
2215
|
408 int& width, bool discard, char& type, |
|
2117
|
409 char modifier, int& num_elts) |
|
|
410 { |
|
|
411 int retval = 0; |
|
|
412 |
|
3523
|
413 std::string char_class; |
|
3483
|
414 |
|
3640
|
415 int beg_idx = -1; |
|
|
416 int end_idx = -1; |
|
|
417 |
|
2117
|
418 if (s[i] == '%') |
|
3640
|
419 { |
|
|
420 type = '%'; |
|
|
421 *buf << s[i++]; |
|
|
422 } |
|
2117
|
423 else |
|
|
424 { |
|
|
425 type = s[i]; |
|
|
426 |
|
|
427 if (s[i] == '[') |
|
|
428 { |
|
|
429 *buf << s[i++]; |
|
|
430 |
|
|
431 if (i < n) |
|
|
432 { |
|
3483
|
433 beg_idx = i; |
|
|
434 |
|
2117
|
435 if (s[i] == '^') |
|
|
436 { |
|
|
437 type = '^'; |
|
|
438 *buf << s[i++]; |
|
3483
|
439 |
|
|
440 if (i < n) |
|
|
441 { |
|
|
442 beg_idx = i; |
|
|
443 |
|
|
444 if (s[i] == ']') |
|
|
445 *buf << s[i++]; |
|
|
446 } |
|
2117
|
447 } |
|
|
448 else if (s[i] == ']') |
|
|
449 *buf << s[i++]; |
|
|
450 } |
|
|
451 |
|
|
452 while (i < n && s[i] != ']') |
|
|
453 *buf << s[i++]; |
|
|
454 |
|
|
455 if (i < n && s[i] == ']') |
|
3483
|
456 { |
|
|
457 end_idx = i-1; |
|
|
458 *buf << s[i++]; |
|
|
459 } |
|
2117
|
460 |
|
|
461 if (s[i-1] != ']') |
|
|
462 retval = nconv = -1; |
|
|
463 } |
|
|
464 else |
|
2215
|
465 *buf << s[i++]; |
|
3640
|
466 } |
|
|
467 |
|
|
468 nconv++; |
|
|
469 |
|
|
470 if (nconv > 0) |
|
|
471 { |
|
|
472 if (beg_idx >= 0 && end_idx >= 0) |
|
|
473 char_class = expand_char_class (s.substr (beg_idx, |
|
|
474 end_idx - beg_idx + 1)); |
|
|
475 |
|
|
476 add_elt_to_list (width, discard, type, modifier, num_elts, char_class); |
|
2117
|
477 } |
|
|
478 |
|
|
479 return retval; |
|
|
480 } |
|
|
481 |
|
|
482 void |
|
|
483 scanf_format_list::printme (void) const |
|
|
484 { |
|
|
485 int n = list.length (); |
|
|
486 |
|
|
487 for (int i = 0; i < n; i++) |
|
|
488 { |
|
3340
|
489 scanf_format_elt *elt = list(i); |
|
2117
|
490 |
|
3531
|
491 std::cerr |
|
|
492 << "width: " << elt->width << "\n" |
|
|
493 << "discard: " << elt->discard << "\n" |
|
|
494 << "type: "; |
|
3483
|
495 |
|
|
496 if (elt->type == scanf_format_elt::literal_conversion) |
|
3531
|
497 std::cerr << "literal text\n"; |
|
3483
|
498 else if (elt->type == scanf_format_elt::whitespace_conversion) |
|
3531
|
499 std::cerr << "whitespace\n"; |
|
3483
|
500 else |
|
3531
|
501 std::cerr << elt->type << "\n"; |
|
|
502 |
|
|
503 std::cerr |
|
|
504 << "modifier: " << elt->modifier << "\n" |
|
|
505 << "char_class: `" << undo_string_escapes (elt->char_class) << "'\n" |
|
|
506 << "text: `" << undo_string_escapes (elt->text) << "'\n\n"; |
|
2117
|
507 } |
|
|
508 } |
|
|
509 |
|
|
510 bool |
|
|
511 scanf_format_list::all_character_conversions (void) |
|
|
512 { |
|
|
513 int n = list.length (); |
|
|
514 |
|
|
515 if (n > 0) |
|
|
516 { |
|
|
517 for (int i = 0; i < n; i++) |
|
|
518 { |
|
3340
|
519 scanf_format_elt *elt = list(i); |
|
2117
|
520 |
|
|
521 switch (elt->type) |
|
|
522 { |
|
3483
|
523 case 'c': case 's': case '%': case '[': case '^': |
|
|
524 case scanf_format_elt::literal_conversion: |
|
|
525 case scanf_format_elt::whitespace_conversion: |
|
2117
|
526 break; |
|
|
527 |
|
|
528 default: |
|
|
529 return false; |
|
|
530 break; |
|
|
531 } |
|
|
532 } |
|
|
533 |
|
|
534 return true; |
|
|
535 } |
|
|
536 else |
|
|
537 return false; |
|
|
538 } |
|
|
539 |
|
|
540 bool |
|
|
541 scanf_format_list::all_numeric_conversions (void) |
|
|
542 { |
|
|
543 int n = list.length (); |
|
|
544 |
|
|
545 if (n > 0) |
|
|
546 { |
|
|
547 for (int i = 0; i < n; i++) |
|
|
548 { |
|
3340
|
549 scanf_format_elt *elt = list(i); |
|
2117
|
550 |
|
|
551 switch (elt->type) |
|
|
552 { |
|
|
553 case 'd': case 'i': case 'o': case 'u': case 'x': |
|
|
554 case 'e': case 'f': case 'g': |
|
|
555 break; |
|
|
556 |
|
|
557 default: |
|
|
558 return false; |
|
|
559 break; |
|
|
560 } |
|
|
561 } |
|
|
562 |
|
|
563 return true; |
|
|
564 } |
|
|
565 else |
|
|
566 return false; |
|
|
567 } |
|
|
568 |
|
|
569 // Ugh again. |
|
|
570 |
|
3523
|
571 printf_format_list::printf_format_list (const std::string& s) |
|
2117
|
572 : nconv (0), curr_idx (0), list (16), buf (0) |
|
|
573 { |
|
|
574 int num_elts = 0; |
|
|
575 |
|
|
576 int n = s.length (); |
|
|
577 |
|
|
578 int i = 0; |
|
|
579 |
|
|
580 int args = 0; |
|
3643
|
581 std::string flags; |
|
3640
|
582 int fw = 0; |
|
|
583 int prec = 0; |
|
2117
|
584 char modifier = '\0'; |
|
|
585 char type = '\0'; |
|
|
586 |
|
|
587 bool have_more = true; |
|
3640
|
588 bool empty_buf = true; |
|
2117
|
589 |
|
4223
|
590 if (n == 0) |
|
2117
|
591 { |
|
4223
|
592 printf_format_elt *elt |
|
|
593 = new printf_format_elt ("", args, fw, prec, flags, type, modifier); |
|
|
594 |
|
|
595 list(num_elts++) = elt; |
|
|
596 |
|
|
597 list.resize (num_elts); |
|
|
598 } |
|
|
599 else |
|
|
600 { |
|
|
601 while (i < n) |
|
3640
|
602 { |
|
4223
|
603 have_more = true; |
|
|
604 |
|
|
605 if (! buf) |
|
|
606 { |
|
|
607 buf = new OSSTREAM (); |
|
|
608 empty_buf = true; |
|
|
609 } |
|
|
610 |
|
|
611 switch (s[i]) |
|
|
612 { |
|
|
613 case '%': |
|
3640
|
614 { |
|
4223
|
615 if (empty_buf) |
|
|
616 { |
|
|
617 process_conversion (s, i, n, args, flags, fw, prec, |
|
|
618 type, modifier, num_elts); |
|
|
619 |
|
|
620 have_more = (buf != 0); |
|
|
621 } |
|
|
622 else |
|
|
623 add_elt_to_list (args, flags, fw, prec, type, modifier, |
|
|
624 num_elts); |
|
3640
|
625 } |
|
4223
|
626 break; |
|
|
627 |
|
|
628 default: |
|
|
629 { |
|
|
630 args = 0; |
|
|
631 flags = ""; |
|
|
632 fw = 0; |
|
|
633 prec = 0; |
|
|
634 modifier = '\0'; |
|
|
635 type = '\0'; |
|
|
636 *buf << s[i++]; |
|
|
637 empty_buf = false; |
|
|
638 } |
|
|
639 break; |
|
|
640 } |
|
|
641 |
|
|
642 if (nconv < 0) |
|
|
643 { |
|
|
644 have_more = false; |
|
|
645 break; |
|
|
646 } |
|
2117
|
647 } |
|
|
648 |
|
4223
|
649 if (have_more) |
|
|
650 add_elt_to_list (args, flags, fw, prec, type, modifier, num_elts); |
|
|
651 |
|
|
652 list.resize (num_elts); |
|
|
653 |
|
|
654 delete buf; |
|
2117
|
655 } |
|
|
656 } |
|
|
657 |
|
|
658 printf_format_list::~printf_format_list (void) |
|
|
659 { |
|
|
660 int n = list.length (); |
|
|
661 |
|
|
662 for (int i = 0; i < n; i++) |
|
|
663 { |
|
3340
|
664 printf_format_elt *elt = list(i); |
|
2117
|
665 delete elt; |
|
|
666 } |
|
|
667 } |
|
|
668 |
|
|
669 void |
|
3640
|
670 printf_format_list::add_elt_to_list (int args, const std::string& flags, |
|
|
671 int fw, int prec, char type, |
|
|
672 char modifier, int& num_elts) |
|
2117
|
673 { |
|
|
674 if (buf) |
|
|
675 { |
|
4051
|
676 *buf << OSSTREAM_ENDS; |
|
|
677 |
|
|
678 std::string text = OSSTREAM_STR (*buf); |
|
|
679 |
|
|
680 OSSTREAM_FREEZE (*buf); |
|
|
681 |
|
|
682 if (! text.empty ()) |
|
2117
|
683 { |
|
4051
|
684 printf_format_elt *elt |
|
|
685 = new printf_format_elt (text.c_str (), args, fw, prec, flags, |
|
|
686 type, modifier); |
|
|
687 |
|
|
688 if (num_elts == list.length ()) |
|
|
689 list.resize (2 * num_elts); |
|
|
690 |
|
|
691 list(num_elts++) = elt; |
|
2117
|
692 } |
|
|
693 |
|
|
694 delete buf; |
|
|
695 buf = 0; |
|
|
696 } |
|
|
697 } |
|
|
698 |
|
|
699 void |
|
3640
|
700 printf_format_list::process_conversion |
|
|
701 (const std::string& s, int& i, int n, int& args, std::string& flags, |
|
|
702 int& fw, int& prec, char& modifier, char& type, int& num_elts) |
|
2117
|
703 { |
|
|
704 args = 0; |
|
3640
|
705 flags = ""; |
|
|
706 fw = 0; |
|
|
707 prec = 0; |
|
2117
|
708 modifier = '\0'; |
|
|
709 type = '\0'; |
|
|
710 |
|
|
711 *buf << s[i++]; |
|
|
712 |
|
4587
|
713 bool nxt = false; |
|
2117
|
714 |
|
|
715 while (i < n) |
|
|
716 { |
|
|
717 switch (s[i]) |
|
|
718 { |
|
|
719 case '-': case '+': case ' ': case '0': case '#': |
|
3640
|
720 flags += s[i]; |
|
2117
|
721 *buf << s[i++]; |
|
|
722 break; |
|
|
723 |
|
|
724 default: |
|
4587
|
725 nxt = true; |
|
2117
|
726 break; |
|
|
727 } |
|
|
728 |
|
4587
|
729 if (nxt) |
|
2117
|
730 break; |
|
|
731 } |
|
|
732 |
|
|
733 if (i < n) |
|
|
734 { |
|
|
735 if (s[i] == '*') |
|
|
736 { |
|
3640
|
737 fw = -1; |
|
2117
|
738 args++; |
|
|
739 *buf << s[i++]; |
|
|
740 } |
|
|
741 else |
|
|
742 { |
|
3640
|
743 if (isdigit (s[i])) |
|
|
744 { |
|
4587
|
745 int nn = 0; |
|
3643
|
746 std::string tmp = s.substr (i); |
|
4587
|
747 sscanf (tmp.c_str (), "%d%n", &fw, &nn); |
|
3640
|
748 } |
|
|
749 |
|
2117
|
750 while (i < n && isdigit (s[i])) |
|
|
751 *buf << s[i++]; |
|
|
752 } |
|
|
753 } |
|
|
754 |
|
|
755 if (i < n && s[i] == '.') |
|
|
756 { |
|
|
757 *buf << s[i++]; |
|
|
758 |
|
|
759 if (i < n) |
|
|
760 { |
|
|
761 if (s[i] == '*') |
|
|
762 { |
|
3640
|
763 prec = -1; |
|
2117
|
764 args++; |
|
|
765 *buf << s[i++]; |
|
|
766 } |
|
|
767 else |
|
|
768 { |
|
3640
|
769 if (isdigit (s[i])) |
|
|
770 { |
|
4587
|
771 int nn = 0; |
|
3643
|
772 std::string tmp = s.substr (i); |
|
4587
|
773 sscanf (tmp.c_str (), "%d%n", &prec, &nn); |
|
3640
|
774 } |
|
|
775 |
|
2117
|
776 while (i < n && isdigit (s[i])) |
|
|
777 *buf << s[i++]; |
|
|
778 } |
|
|
779 } |
|
|
780 } |
|
|
781 |
|
|
782 if (i < n) |
|
|
783 { |
|
|
784 switch (s[i]) |
|
|
785 { |
|
|
786 case 'h': case 'l': case 'L': |
|
|
787 modifier = s[i]; |
|
|
788 *buf << s[i++]; |
|
|
789 break; |
|
|
790 |
|
|
791 default: |
|
|
792 break; |
|
|
793 } |
|
|
794 } |
|
|
795 |
|
|
796 if (i < n) |
|
3640
|
797 finish_conversion (s, i, args, flags, fw, prec, modifier, type, num_elts); |
|
2117
|
798 else |
|
|
799 nconv = -1; |
|
|
800 } |
|
|
801 |
|
|
802 void |
|
3640
|
803 printf_format_list::finish_conversion |
|
|
804 (const std::string& s, int& i, int args, const std::string& flags, |
|
|
805 int fw, int prec, char modifier, char& type, int& num_elts) |
|
2117
|
806 |
|
|
807 { |
|
|
808 switch (s[i]) |
|
|
809 { |
|
|
810 case 'd': case 'i': case 'o': case 'x': case 'X': |
|
|
811 case 'u': case 'c': |
|
|
812 if (modifier == 'L') |
|
|
813 { |
|
|
814 nconv = -1; |
|
|
815 break; |
|
|
816 } |
|
|
817 goto fini; |
|
|
818 |
|
|
819 case 'f': case 'e': case 'E': case 'g': case 'G': |
|
|
820 if (modifier == 'h' || modifier == 'l') |
|
|
821 { |
|
|
822 nconv = -1; |
|
|
823 break; |
|
|
824 } |
|
|
825 goto fini; |
|
|
826 |
|
|
827 case 's': case 'p': case '%': |
|
|
828 if (modifier != '\0') |
|
|
829 { |
|
|
830 nconv = -1; |
|
|
831 break; |
|
|
832 } |
|
|
833 goto fini; |
|
|
834 |
|
|
835 fini: |
|
|
836 |
|
3640
|
837 type = s[i]; |
|
|
838 |
|
|
839 *buf << s[i++]; |
|
|
840 |
|
|
841 if (type != '%' || args != 0) |
|
|
842 nconv++; |
|
|
843 |
|
|
844 if (type != '%') |
|
|
845 args++; |
|
|
846 |
|
|
847 add_elt_to_list (args, flags, fw, prec, type, modifier, num_elts); |
|
|
848 |
|
2117
|
849 break; |
|
|
850 |
|
|
851 default: |
|
|
852 nconv = -1; |
|
|
853 break; |
|
|
854 } |
|
|
855 } |
|
|
856 |
|
|
857 void |
|
|
858 printf_format_list::printme (void) const |
|
|
859 { |
|
|
860 int n = list.length (); |
|
|
861 |
|
|
862 for (int i = 0; i < n; i++) |
|
|
863 { |
|
3340
|
864 printf_format_elt *elt = list(i); |
|
2117
|
865 |
|
3640
|
866 std::cerr |
|
|
867 << "args: " << elt->args << "\n" |
|
|
868 << "flags: `" << elt->flags << "'\n" |
|
|
869 << "width: " << elt->fw << "\n" |
|
|
870 << "prec: " << elt->prec << "\n" |
|
|
871 << "type: `" << elt->type << "'\n" |
|
|
872 << "modifier: `" << elt->modifier << "'\n" |
|
|
873 << "text: `" << undo_string_escapes (elt->text) << "'\n\n"; |
|
2117
|
874 } |
|
|
875 } |
|
|
876 |
|
3145
|
877 int |
|
3148
|
878 octave_base_stream::file_number (void) |
|
3145
|
879 { |
|
|
880 // Kluge alert! |
|
|
881 |
|
|
882 if (name () == "stdin") |
|
|
883 return 0; |
|
|
884 |
|
|
885 if (name () == "stdout") |
|
|
886 return 1; |
|
|
887 |
|
|
888 if (name () == "stderr") |
|
|
889 return 2; |
|
|
890 |
|
|
891 int retval = -1; |
|
|
892 |
|
3523
|
893 std::istream *is = input_stream (); |
|
|
894 std::ostream *os = output_stream (); |
|
3145
|
895 |
|
3775
|
896 // There is no standard way to get the underlying file descriptor from |
|
|
897 // std::filebuf (nor in the GNU libstdc++-v3 implementation). We cache |
|
|
898 // the descriptor in c_file_ptr_buf, and then extract it here. |
|
|
899 |
|
|
900 c_file_ptr_buf *ibuf = is ? |
|
|
901 dynamic_cast<c_file_ptr_buf *> (is->rdbuf ()) : 0; |
|
|
902 c_file_ptr_buf *obuf = os ? |
|
|
903 dynamic_cast<c_file_ptr_buf *> (os->rdbuf ()) : 0; |
|
|
904 |
|
|
905 int i_fid = ibuf ? ibuf->file_number () : -1; |
|
|
906 int o_fid = obuf ? obuf->file_number () : -1; |
|
3145
|
907 |
|
|
908 if (i_fid >= 0) |
|
|
909 { |
|
|
910 if (o_fid >= 0) |
|
|
911 retval = (i_fid == o_fid) ? i_fid : -1; |
|
|
912 else |
|
|
913 retval = i_fid; |
|
|
914 } |
|
|
915 else if (o_fid >= 0) |
|
|
916 retval = o_fid; |
|
|
917 |
|
|
918 return retval; |
|
|
919 } |
|
|
920 |
|
2117
|
921 void |
|
3523
|
922 octave_base_stream::error (const std::string& msg) |
|
2117
|
923 { |
|
|
924 fail = true; |
|
|
925 errmsg = msg; |
|
|
926 } |
|
|
927 |
|
|
928 void |
|
4468
|
929 octave_base_stream::error (const std::string& who, const std::string& msg) |
|
|
930 { |
|
|
931 fail = true; |
|
|
932 errmsg = who + msg; |
|
|
933 } |
|
|
934 |
|
|
935 void |
|
2117
|
936 octave_base_stream::clear (void) |
|
|
937 { |
|
4889
|
938 fail = false; |
|
|
939 errmsg = ""; |
|
|
940 } |
|
|
941 |
|
|
942 void |
|
|
943 octave_base_stream::clearerr (void) |
|
|
944 { |
|
4888
|
945 std::istream *is = input_stream (); |
|
|
946 std::ostream *os = output_stream (); |
|
|
947 |
|
|
948 if (is) |
|
|
949 is->clear (); |
|
|
950 |
|
|
951 if (os) |
|
|
952 os->clear (); |
|
2117
|
953 } |
|
|
954 |
|
|
955 // Functions that are defined for all input streams (input streams |
|
|
956 // are those that define is). |
|
|
957 |
|
3536
|
958 std::string |
|
2117
|
959 octave_base_stream::do_gets (int max_len, bool& err, |
|
4468
|
960 bool strip_newline, const std::string& who) |
|
2117
|
961 { |
|
3523
|
962 std::string retval; |
|
2117
|
963 |
|
|
964 err = false; |
|
|
965 |
|
3523
|
966 std::istream *isp = input_stream (); |
|
2117
|
967 |
|
|
968 if (isp) |
|
|
969 { |
|
3523
|
970 std::istream& is = *isp; |
|
2117
|
971 |
|
4051
|
972 OSSTREAM buf; |
|
2117
|
973 |
|
|
974 int c = 0; |
|
3553
|
975 int char_count = 0; |
|
2117
|
976 int newline_stripped = 0; |
|
|
977 |
|
|
978 while (is && (c = is.get ()) != EOF) |
|
|
979 { |
|
3553
|
980 char_count++; |
|
2117
|
981 |
|
|
982 if (c == '\n') |
|
|
983 { |
|
|
984 if (! strip_newline) |
|
|
985 buf << (char) c; |
|
|
986 else |
|
|
987 newline_stripped = 1; |
|
|
988 |
|
|
989 break; |
|
|
990 } |
|
|
991 else |
|
|
992 buf << (char) c; |
|
|
993 |
|
3553
|
994 if (max_len > 0 && char_count == max_len) |
|
2117
|
995 break; |
|
|
996 } |
|
|
997 |
|
4224
|
998 if (is.good () || (is.eof () && char_count > 0)) |
|
2117
|
999 { |
|
4051
|
1000 buf << OSSTREAM_ENDS; |
|
|
1001 retval = OSSTREAM_STR (buf); |
|
|
1002 OSSTREAM_FREEZE (buf); |
|
2117
|
1003 } |
|
4224
|
1004 else |
|
|
1005 { |
|
|
1006 err = true; |
|
4468
|
1007 |
|
4224
|
1008 if (is.eof () && char_count == 0) |
|
4468
|
1009 error (who, "at end of file"); |
|
4224
|
1010 else |
|
4468
|
1011 error (who, "read error"); |
|
4224
|
1012 } |
|
2117
|
1013 } |
|
|
1014 else |
|
|
1015 { |
|
|
1016 err = true; |
|
4468
|
1017 invalid_operation (who, "reading"); |
|
2117
|
1018 } |
|
|
1019 |
|
|
1020 return retval; |
|
|
1021 } |
|
|
1022 |
|
3536
|
1023 std::string |
|
4468
|
1024 octave_base_stream::getl (int max_len, bool& err, const std::string& who) |
|
2117
|
1025 { |
|
4468
|
1026 return do_gets (max_len, err, true, who); |
|
2117
|
1027 } |
|
|
1028 |
|
3536
|
1029 std::string |
|
4468
|
1030 octave_base_stream::gets (int max_len, bool& err, const std::string& who) |
|
2117
|
1031 { |
|
4468
|
1032 return do_gets (max_len, err, false, who); |
|
2117
|
1033 } |
|
|
1034 |
|
|
1035 octave_value |
|
3810
|
1036 octave_base_stream::read (const Array<double>& size, |
|
2317
|
1037 oct_data_conv::data_type dt, int skip, |
|
3553
|
1038 oct_mach_info::float_format ffmt, |
|
|
1039 int& char_count) |
|
2117
|
1040 { |
|
2317
|
1041 Matrix retval; |
|
|
1042 |
|
3553
|
1043 char_count = 0; |
|
2117
|
1044 |
|
3523
|
1045 std::istream *isp = input_stream (); |
|
2117
|
1046 |
|
|
1047 if (isp) |
|
|
1048 { |
|
3523
|
1049 std::istream& is = *isp; |
|
2117
|
1050 |
|
|
1051 int nr = -1; |
|
|
1052 int nc = -1; |
|
|
1053 |
|
3268
|
1054 bool ignore; |
|
|
1055 |
|
|
1056 get_size (size, nr, nc, ignore, "fread"); |
|
2117
|
1057 |
|
|
1058 if (! error_state) |
|
2317
|
1059 { |
|
4574
|
1060 if (ffmt == oct_mach_info::flt_fmt_unknown) |
|
3553
|
1061 ffmt = float_format (); |
|
|
1062 |
|
|
1063 int tmp = retval.read (is, nr, nc, dt, skip, ffmt); |
|
2317
|
1064 |
|
|
1065 if (tmp < 0) |
|
|
1066 error ("fread: read error"); |
|
|
1067 else |
|
3553
|
1068 char_count = tmp; |
|
2317
|
1069 } |
|
2117
|
1070 } |
|
|
1071 else |
|
|
1072 invalid_operation ("fread", "reading"); |
|
|
1073 |
|
|
1074 return retval; |
|
|
1075 } |
|
|
1076 |
|
3779
|
1077 #if defined (__GNUG__) && ! defined (CXX_ISO_COMPLIANT_LIBRARY) |
|
3636
|
1078 |
|
3640
|
1079 #define OCTAVE_SCAN(is, fmt, arg) is.scan ((fmt).text, arg) |
|
3636
|
1080 |
|
|
1081 #else |
|
|
1082 |
|
3640
|
1083 #define OCTAVE_SCAN(is, fmt, arg) octave_scan (is, fmt, arg) |
|
3636
|
1084 |
|
3779
|
1085 // XXX FIXME XXX -- this needs to be fixed to handle formats which |
|
|
1086 // specify a maximum width. |
|
|
1087 |
|
3636
|
1088 template <class T> |
|
|
1089 std::istream& |
|
3779
|
1090 octave_scan (std::istream& is, const scanf_format_elt& fmt, T* valptr) |
|
3636
|
1091 { |
|
3779
|
1092 T& ref = *valptr; |
|
|
1093 |
|
|
1094 switch (fmt.type) |
|
|
1095 { |
|
|
1096 case 'o': |
|
4926
|
1097 is >> std::oct >> ref >> std::dec; |
|
3779
|
1098 break; |
|
|
1099 |
|
|
1100 case 'x': |
|
4926
|
1101 is >> std::hex >> ref >> std::dec; |
|
|
1102 break; |
|
|
1103 |
|
|
1104 case 'i': |
|
|
1105 { |
|
|
1106 int c1 = is.get (); |
|
|
1107 |
|
|
1108 if (! is.eof ()) |
|
|
1109 { |
|
|
1110 if (c1 == '0') |
|
|
1111 { |
|
4927
|
1112 int c2 = is.get (); |
|
4926
|
1113 |
|
|
1114 if (c2 == 'x' || c2 == 'X') |
|
|
1115 is >> std::hex >> ref >> std::dec; |
|
|
1116 else |
|
4927
|
1117 { |
|
|
1118 is.putback (c2); |
|
|
1119 |
|
|
1120 if (c2 == '0' || c2 == '1' || c2 == '2' |
|
|
1121 || c2 == '3' || c2 == '4' || c2 == '5' |
|
|
1122 || c2 == '6' || c2 == '7') |
|
|
1123 is >> std::oct >> ref >> std::dec; |
|
|
1124 else |
|
|
1125 ref = 0; |
|
|
1126 } |
|
4926
|
1127 } |
|
|
1128 else |
|
|
1129 { |
|
|
1130 is.putback (c1); |
|
|
1131 |
|
|
1132 is >> ref; |
|
|
1133 } |
|
|
1134 } |
|
|
1135 } |
|
3779
|
1136 break; |
|
|
1137 |
|
|
1138 default: |
|
|
1139 is >> ref; |
|
|
1140 break; |
|
|
1141 } |
|
3639
|
1142 |
|
3638
|
1143 return is; |
|
3636
|
1144 } |
|
|
1145 |
|
3779
|
1146 // Note that this specialization is only used for reading characters, not |
|
|
1147 // character strings. See BEGIN_S_CONVERSION for details. |
|
|
1148 |
|
|
1149 template<> |
|
|
1150 std::istream& |
|
4661
|
1151 octave_scan<> (std::istream& is, const scanf_format_elt& /* fmt */, |
|
|
1152 char* valptr) |
|
3779
|
1153 { |
|
|
1154 return is >> valptr; |
|
|
1155 } |
|
3636
|
1156 |
|
4595
|
1157 template std::istream& |
|
|
1158 octave_scan (std::istream&, const scanf_format_elt&, int*); |
|
|
1159 |
|
|
1160 template std::istream& |
|
|
1161 octave_scan (std::istream&, const scanf_format_elt&, long int*); |
|
|
1162 |
|
|
1163 template std::istream& |
|
|
1164 octave_scan (std::istream&, const scanf_format_elt&, short int*); |
|
|
1165 |
|
|
1166 template std::istream& |
|
|
1167 octave_scan (std::istream&, const scanf_format_elt&, unsigned int*); |
|
|
1168 |
|
|
1169 template std::istream& |
|
|
1170 octave_scan (std::istream&, const scanf_format_elt&, unsigned long int*); |
|
|
1171 |
|
|
1172 template std::istream& |
|
|
1173 octave_scan (std::istream&, const scanf_format_elt&, unsigned short int*); |
|
|
1174 |
|
|
1175 #if 0 |
|
|
1176 template std::istream& |
|
|
1177 octave_scan (std::istream&, const scanf_format_elt&, float*); |
|
|
1178 #endif |
|
|
1179 |
|
|
1180 template std::istream& |
|
|
1181 octave_scan (std::istream&, const scanf_format_elt&, double*); |
|
|
1182 |
|
3636
|
1183 #endif |
|
|
1184 |
|
2572
|
1185 template <class T> |
|
|
1186 void |
|
3636
|
1187 do_scanf_conv (std::istream& is, const scanf_format_elt& fmt, |
|
|
1188 T valptr, Matrix& mval, double *data, int& idx, |
|
|
1189 int& conversion_count, int nr, int max_size, |
|
|
1190 bool discard) |
|
2572
|
1191 { |
|
3640
|
1192 OCTAVE_SCAN (is, fmt, valptr); |
|
2572
|
1193 |
|
|
1194 if (is) |
|
|
1195 { |
|
|
1196 if (idx == max_size && ! discard) |
|
|
1197 { |
|
|
1198 max_size *= 2; |
|
|
1199 |
|
|
1200 if (nr > 0) |
|
|
1201 mval.resize (nr, max_size / nr, 0.0); |
|
|
1202 else |
|
|
1203 mval.resize (max_size, 1, 0.0); |
|
|
1204 |
|
|
1205 data = mval.fortran_vec (); |
|
|
1206 } |
|
|
1207 |
|
|
1208 if (! discard) |
|
3268
|
1209 { |
|
3559
|
1210 conversion_count++; |
|
3268
|
1211 data[idx++] = *(valptr); |
|
|
1212 } |
|
2572
|
1213 } |
|
|
1214 } |
|
|
1215 |
|
|
1216 template void |
|
3878
|
1217 do_scanf_conv (std::istream&, const scanf_format_elt&, int*, |
|
|
1218 Matrix&, double*, int&, int&, int, int, bool); |
|
2572
|
1219 |
|
3233
|
1220 template void |
|
3636
|
1221 do_scanf_conv (std::istream&, const scanf_format_elt&, long int*, |
|
|
1222 Matrix&, double*, int&, int&, int, int, bool); |
|
3233
|
1223 |
|
|
1224 template void |
|
3636
|
1225 do_scanf_conv (std::istream&, const scanf_format_elt&, short int*, |
|
|
1226 Matrix&, double*, int&, int&, int, int, bool); |
|
3233
|
1227 |
|
3878
|
1228 template void |
|
|
1229 do_scanf_conv (std::istream&, const scanf_format_elt&, unsigned int*, |
|
|
1230 Matrix&, double*, int&, int&, int, int, bool); |
|
|
1231 |
|
|
1232 template void |
|
|
1233 do_scanf_conv (std::istream&, const scanf_format_elt&, unsigned long int*, |
|
|
1234 Matrix&, double*, int&, int&, int, int, bool); |
|
|
1235 |
|
|
1236 template void |
|
|
1237 do_scanf_conv (std::istream&, const scanf_format_elt&, unsigned short int*, |
|
|
1238 Matrix&, double*, int&, int&, int, int, bool); |
|
|
1239 |
|
2600
|
1240 #if 0 |
|
2572
|
1241 template void |
|
3636
|
1242 do_scanf_conv (std::istream&, const scanf_format_elt&, float*, |
|
|
1243 Matrix&, double*, int&, int&, int, int, bool); |
|
2600
|
1244 #endif |
|
2572
|
1245 |
|
|
1246 template void |
|
3636
|
1247 do_scanf_conv (std::istream&, const scanf_format_elt&, double*, |
|
|
1248 Matrix&, double*, int&, int&, int, int, bool); |
|
2572
|
1249 |
|
3483
|
1250 #define DO_WHITESPACE_CONVERSION() \ |
|
|
1251 do \ |
|
|
1252 { \ |
|
|
1253 int c = EOF; \ |
|
|
1254 \ |
|
|
1255 while (is && (c = is.get ()) != EOF && isspace (c)) \ |
|
|
1256 /* skip whitespace */; \ |
|
|
1257 \ |
|
|
1258 if (c != EOF) \ |
|
|
1259 is.putback (c); \ |
|
|
1260 } \ |
|
|
1261 while (0) |
|
|
1262 |
|
|
1263 #define DO_LITERAL_CONVERSION() \ |
|
|
1264 do \ |
|
|
1265 { \ |
|
|
1266 int c = EOF; \ |
|
|
1267 \ |
|
|
1268 int n = strlen (fmt); \ |
|
|
1269 int i = 0; \ |
|
|
1270 \ |
|
|
1271 while (i < n && is && (c = is.get ()) != EOF) \ |
|
|
1272 { \ |
|
|
1273 if (c == fmt[i]) \ |
|
|
1274 { \ |
|
|
1275 i++; \ |
|
|
1276 continue; \ |
|
|
1277 } \ |
|
|
1278 else \ |
|
|
1279 { \ |
|
|
1280 is.putback (c); \ |
|
|
1281 break; \ |
|
|
1282 } \ |
|
|
1283 } \ |
|
|
1284 \ |
|
|
1285 if (i != n) \ |
|
3538
|
1286 is.setstate (std::ios::failbit); \ |
|
3483
|
1287 } \ |
|
|
1288 while (0) |
|
|
1289 |
|
3640
|
1290 #define DO_PCT_CONVERSION() \ |
|
|
1291 do \ |
|
|
1292 { \ |
|
|
1293 int c = is.get (); \ |
|
|
1294 \ |
|
|
1295 if (c != EOF) \ |
|
|
1296 { \ |
|
|
1297 if (c != '%') \ |
|
|
1298 { \ |
|
|
1299 is.putback (c); \ |
|
|
1300 is.setstate (std::ios::failbit); \ |
|
|
1301 } \ |
|
|
1302 } \ |
|
|
1303 else \ |
|
|
1304 is.setstate (std::ios::failbit); \ |
|
|
1305 } \ |
|
|
1306 while (0) |
|
|
1307 |
|
3483
|
1308 #define BEGIN_C_CONVERSION() \ |
|
3538
|
1309 is.unsetf (std::ios::skipws); \ |
|
3483
|
1310 \ |
|
|
1311 int width = elt->width ? elt->width : 1; \ |
|
|
1312 \ |
|
4051
|
1313 char *tbuf = new char[width + 1]; \ |
|
3483
|
1314 \ |
|
|
1315 int c = EOF; \ |
|
|
1316 int n = 0; \ |
|
|
1317 \ |
|
|
1318 while (is && n < width && (c = is.get ()) != EOF) \ |
|
4051
|
1319 tbuf[n++] = (char) c; \ |
|
|
1320 \ |
|
|
1321 tbuf[n] = '\0'; \ |
|
3483
|
1322 \ |
|
4051
|
1323 std::string tmp = tbuf; \ |
|
|
1324 \ |
|
|
1325 delete [] tbuf |
|
3483
|
1326 |
|
|
1327 // For a `%s' format, skip initial whitespace and then read until the |
|
|
1328 // next whitespace character. |
|
|
1329 #define BEGIN_S_CONVERSION() \ |
|
|
1330 int width = elt->width; \ |
|
|
1331 \ |
|
4051
|
1332 std::string tmp; \ |
|
3483
|
1333 \ |
|
|
1334 do \ |
|
|
1335 { \ |
|
|
1336 if (width) \ |
|
|
1337 { \ |
|
4051
|
1338 char *tbuf = new char [width+1]; \ |
|
|
1339 \ |
|
|
1340 OCTAVE_SCAN (is, *elt, tbuf); \ |
|
3483
|
1341 \ |
|
4051
|
1342 tbuf[width] = '\0'; \ |
|
|
1343 tmp = tbuf; \ |
|
|
1344 delete [] tbuf; \ |
|
3483
|
1345 } \ |
|
|
1346 else \ |
|
|
1347 { \ |
|
4051
|
1348 is >> std::ws >> tmp; \ |
|
3483
|
1349 } \ |
|
|
1350 } \ |
|
|
1351 while (0) |
|
|
1352 |
|
|
1353 // This format must match a nonempty sequence of characters. |
|
|
1354 #define BEGIN_CHAR_CLASS_CONVERSION() \ |
|
|
1355 int width = elt->width; \ |
|
|
1356 \ |
|
4051
|
1357 std::string tmp; \ |
|
3483
|
1358 \ |
|
|
1359 do \ |
|
|
1360 { \ |
|
|
1361 if (width) \ |
|
|
1362 { \ |
|
4051
|
1363 char *tbuf = new char[width+1]; \ |
|
|
1364 \ |
|
|
1365 OCTAVE_SCAN (is, *elt, tbuf); \ |
|
3483
|
1366 \ |
|
4051
|
1367 tbuf[width] = '\0'; \ |
|
|
1368 tmp = tbuf; \ |
|
|
1369 delete [] tbuf; \ |
|
3483
|
1370 } \ |
|
|
1371 else \ |
|
|
1372 { \ |
|
4051
|
1373 OSSTREAM buf; \ |
|
3483
|
1374 \ |
|
3523
|
1375 std::string char_class = elt->char_class; \ |
|
3483
|
1376 \ |
|
|
1377 int c = EOF; \ |
|
|
1378 \ |
|
|
1379 if (elt->type == '[') \ |
|
|
1380 { \ |
|
|
1381 while (is && (c = is.get ()) != EOF \ |
|
|
1382 && char_class.find (c) != NPOS) \ |
|
|
1383 buf << (char) c; \ |
|
|
1384 } \ |
|
|
1385 else \ |
|
|
1386 { \ |
|
|
1387 while (is && (c = is.get ()) != EOF \ |
|
|
1388 && char_class.find (c) == NPOS) \ |
|
|
1389 buf << (char) c; \ |
|
|
1390 } \ |
|
|
1391 \ |
|
|
1392 if (c != EOF) \ |
|
|
1393 is.putback (c); \ |
|
|
1394 \ |
|
4051
|
1395 buf << OSSTREAM_ENDS; \ |
|
|
1396 tmp = OSSTREAM_STR (buf); \ |
|
|
1397 OSSTREAM_FREEZE (buf); \ |
|
3483
|
1398 \ |
|
4051
|
1399 if (tmp.empty ()) \ |
|
3538
|
1400 is.setstate (std::ios::failbit); \ |
|
3483
|
1401 } \ |
|
|
1402 } \ |
|
|
1403 while (0) |
|
|
1404 |
|
3410
|
1405 #define FINISH_CHARACTER_CONVERSION() \ |
|
|
1406 do \ |
|
|
1407 { \ |
|
4051
|
1408 width = tmp.length (); \ |
|
3410
|
1409 \ |
|
|
1410 if (is) \ |
|
|
1411 { \ |
|
|
1412 int i = 0; \ |
|
|
1413 \ |
|
|
1414 if (! discard) \ |
|
|
1415 { \ |
|
|
1416 conversion_count++; \ |
|
|
1417 \ |
|
|
1418 while (i < width && tmp[i] != '\0') \ |
|
|
1419 { \ |
|
|
1420 if (data_index == max_size) \ |
|
|
1421 { \ |
|
|
1422 max_size *= 2; \ |
|
|
1423 \ |
|
4420
|
1424 if (all_char_conv) \ |
|
3410
|
1425 { \ |
|
4420
|
1426 if (one_elt_size_spec) \ |
|
3410
|
1427 mval.resize (1, max_size, 0.0); \ |
|
4420
|
1428 else if (nr > 0) \ |
|
|
1429 mval.resize (nr, max_size / nr, 0.0); \ |
|
3410
|
1430 else \ |
|
4420
|
1431 panic_impossible (); \ |
|
3410
|
1432 } \ |
|
4420
|
1433 else if (nr > 0) \ |
|
|
1434 { \ |
|
|
1435 if (nc <= 0) \ |
|
|
1436 mval.resize (nr, max_size / nr, 0.0); \ |
|
|
1437 else \ |
|
|
1438 panic_impossible (); \ |
|
|
1439 } \ |
|
|
1440 else \ |
|
|
1441 mval.resize (max_size, 1, 0.0); \ |
|
3410
|
1442 \ |
|
|
1443 data = mval.fortran_vec (); \ |
|
|
1444 } \ |
|
|
1445 \ |
|
|
1446 data[data_index++] = tmp[i++]; \ |
|
|
1447 } \ |
|
|
1448 } \ |
|
|
1449 } \ |
|
|
1450 } \ |
|
|
1451 while (0) |
|
2117
|
1452 |
|
|
1453 octave_value |
|
|
1454 octave_base_stream::do_scanf (scanf_format_list& fmt_list, |
|
3268
|
1455 int nr, int nc, bool one_elt_size_spec, |
|
4468
|
1456 int& conversion_count, const std::string& who) |
|
2117
|
1457 { |
|
3268
|
1458 conversion_count = 0; |
|
|
1459 |
|
3640
|
1460 int nconv = fmt_list.num_conversions (); |
|
|
1461 |
|
3268
|
1462 int data_index = 0; |
|
2121
|
1463 |
|
2117
|
1464 octave_value retval = Matrix (); |
|
|
1465 |
|
3268
|
1466 if (nr == 0 || nc == 0) |
|
|
1467 { |
|
|
1468 if (one_elt_size_spec) |
|
|
1469 nc = 0; |
|
|
1470 |
|
|
1471 return Matrix (nr, nc, 0.0); |
|
|
1472 } |
|
|
1473 |
|
3523
|
1474 std::istream *isp = input_stream (); |
|
2117
|
1475 |
|
|
1476 bool all_char_conv = fmt_list.all_character_conversions (); |
|
|
1477 |
|
|
1478 Matrix mval; |
|
|
1479 double *data = 0; |
|
|
1480 int max_size = 0; |
|
3268
|
1481 int max_conv = 0; |
|
2117
|
1482 |
|
|
1483 int final_nr = 0; |
|
|
1484 int final_nc = 0; |
|
|
1485 |
|
3268
|
1486 if (all_char_conv) |
|
|
1487 { |
|
4420
|
1488 // Any of these could be resized later (if we have %s |
|
|
1489 // conversions, we may read more than one element for each |
|
|
1490 // conversion). |
|
|
1491 |
|
3268
|
1492 if (one_elt_size_spec) |
|
|
1493 { |
|
3410
|
1494 max_size = 512; |
|
|
1495 mval.resize (1, max_size, 0.0); |
|
|
1496 |
|
3268
|
1497 if (nr > 0) |
|
|
1498 max_conv = nr; |
|
|
1499 } |
|
4420
|
1500 else if (nr > 0) |
|
3268
|
1501 { |
|
4420
|
1502 if (nc > 0) |
|
|
1503 { |
|
|
1504 mval.resize (nr, nc, 0.0); |
|
|
1505 max_size = max_conv = nr * nc; |
|
|
1506 } |
|
|
1507 else |
|
|
1508 { |
|
|
1509 mval.resize (nr, 32, 0.0); |
|
|
1510 max_size = nr * 32; |
|
|
1511 } |
|
3268
|
1512 } |
|
4420
|
1513 else |
|
|
1514 panic_impossible (); |
|
3268
|
1515 } |
|
|
1516 else if (nr > 0) |
|
2117
|
1517 { |
|
|
1518 if (nc > 0) |
|
|
1519 { |
|
4420
|
1520 // Will not resize later. |
|
2117
|
1521 mval.resize (nr, nc, 0.0); |
|
|
1522 max_size = nr * nc; |
|
3268
|
1523 max_conv = max_size; |
|
2117
|
1524 } |
|
|
1525 else |
|
|
1526 { |
|
4420
|
1527 // Maybe resize later. |
|
2117
|
1528 mval.resize (nr, 32, 0.0); |
|
2121
|
1529 max_size = nr * 32; |
|
2117
|
1530 } |
|
|
1531 } |
|
|
1532 else |
|
|
1533 { |
|
4420
|
1534 // Maybe resize later. |
|
2117
|
1535 mval.resize (32, 1, 0.0); |
|
|
1536 max_size = 32; |
|
|
1537 } |
|
|
1538 |
|
4420
|
1539 data = mval.fortran_vec (); |
|
|
1540 |
|
2117
|
1541 if (isp) |
|
|
1542 { |
|
3523
|
1543 std::istream& is = *isp; |
|
2117
|
1544 |
|
|
1545 const scanf_format_elt *elt = fmt_list.first (); |
|
|
1546 |
|
3538
|
1547 std::ios::fmtflags flags = is.flags (); |
|
2213
|
1548 |
|
2117
|
1549 for (;;) |
|
|
1550 { |
|
4153
|
1551 OCTAVE_QUIT; |
|
|
1552 |
|
2117
|
1553 if (elt) |
|
|
1554 { |
|
3268
|
1555 if (max_conv > 0 && conversion_count == max_conv) |
|
|
1556 { |
|
|
1557 if (all_char_conv && one_elt_size_spec) |
|
|
1558 { |
|
|
1559 final_nr = 1; |
|
|
1560 final_nc = data_index; |
|
|
1561 } |
|
|
1562 else |
|
|
1563 { |
|
|
1564 final_nr = nr; |
|
|
1565 final_nc = (data_index - 1) / nr + 1; |
|
|
1566 } |
|
|
1567 |
|
|
1568 break; |
|
|
1569 } |
|
|
1570 else if (data_index == max_size) |
|
2117
|
1571 { |
|
3410
|
1572 max_size *= 2; |
|
|
1573 |
|
4420
|
1574 if (all_char_conv) |
|
2687
|
1575 { |
|
4420
|
1576 if (one_elt_size_spec) |
|
3410
|
1577 mval.resize (1, max_size, 0.0); |
|
4420
|
1578 else if (nr > 0) |
|
|
1579 mval.resize (nr, max_size / nr, 0.0); |
|
3410
|
1580 else |
|
4420
|
1581 panic_impossible (); |
|
2687
|
1582 } |
|
4420
|
1583 else if (nr > 0) |
|
|
1584 { |
|
|
1585 if (nc <= 0) |
|
|
1586 mval.resize (nr, max_size / nr, 0.0); |
|
|
1587 else |
|
|
1588 panic_impossible (); |
|
|
1589 } |
|
|
1590 else |
|
|
1591 mval.resize (max_size, 1, 0.0); |
|
3410
|
1592 |
|
|
1593 data = mval.fortran_vec (); |
|
2117
|
1594 } |
|
|
1595 |
|
|
1596 const char *fmt = elt->text; |
|
|
1597 |
|
|
1598 bool discard = elt->discard; |
|
|
1599 |
|
|
1600 switch (elt->type) |
|
|
1601 { |
|
3483
|
1602 case scanf_format_elt::whitespace_conversion: |
|
|
1603 DO_WHITESPACE_CONVERSION (); |
|
|
1604 break; |
|
|
1605 |
|
|
1606 case scanf_format_elt::literal_conversion: |
|
|
1607 DO_LITERAL_CONVERSION (); |
|
|
1608 break; |
|
|
1609 |
|
2117
|
1610 case '%': |
|
3640
|
1611 DO_PCT_CONVERSION (); |
|
3483
|
1612 break; |
|
2117
|
1613 |
|
3878
|
1614 case 'd': case 'i': |
|
2117
|
1615 { |
|
3233
|
1616 switch (elt->modifier) |
|
|
1617 { |
|
|
1618 case 'h': |
|
|
1619 { |
|
|
1620 short int tmp; |
|
3779
|
1621 do_scanf_conv (is, *elt, &tmp, mval, data, |
|
3268
|
1622 data_index, conversion_count, |
|
3233
|
1623 nr, max_size, discard); |
|
|
1624 } |
|
3483
|
1625 break; |
|
3233
|
1626 |
|
|
1627 case 'l': |
|
|
1628 { |
|
|
1629 long int tmp; |
|
3779
|
1630 do_scanf_conv (is, *elt, &tmp, mval, data, |
|
3268
|
1631 data_index, conversion_count, |
|
3233
|
1632 nr, max_size, discard); |
|
|
1633 } |
|
3483
|
1634 break; |
|
3233
|
1635 |
|
|
1636 default: |
|
|
1637 { |
|
|
1638 int tmp; |
|
3779
|
1639 do_scanf_conv (is, *elt, &tmp, mval, data, |
|
3268
|
1640 data_index, conversion_count, |
|
3233
|
1641 nr, max_size, discard); |
|
|
1642 } |
|
3483
|
1643 break; |
|
3233
|
1644 } |
|
2117
|
1645 } |
|
3483
|
1646 break; |
|
2117
|
1647 |
|
3878
|
1648 case 'o': case 'u': case 'x': |
|
|
1649 { |
|
|
1650 switch (elt->modifier) |
|
|
1651 { |
|
|
1652 case 'h': |
|
|
1653 { |
|
|
1654 unsigned short int tmp; |
|
|
1655 do_scanf_conv (is, *elt, &tmp, mval, data, |
|
|
1656 data_index, conversion_count, |
|
|
1657 nr, max_size, discard); |
|
|
1658 } |
|
|
1659 break; |
|
|
1660 |
|
|
1661 case 'l': |
|
|
1662 { |
|
|
1663 unsigned long int tmp; |
|
|
1664 do_scanf_conv (is, *elt, &tmp, mval, data, |
|
|
1665 data_index, conversion_count, |
|
|
1666 nr, max_size, discard); |
|
|
1667 } |
|
|
1668 break; |
|
|
1669 |
|
|
1670 default: |
|
|
1671 { |
|
|
1672 unsigned int tmp; |
|
|
1673 do_scanf_conv (is, *elt, &tmp, mval, data, |
|
|
1674 data_index, conversion_count, |
|
|
1675 nr, max_size, discard); |
|
|
1676 } |
|
|
1677 break; |
|
|
1678 } |
|
|
1679 } |
|
|
1680 break; |
|
|
1681 |
|
2117
|
1682 case 'e': case 'f': case 'g': |
|
|
1683 { |
|
2600
|
1684 double tmp; |
|
|
1685 |
|
3779
|
1686 do_scanf_conv (is, *elt, &tmp, mval, data, |
|
3268
|
1687 data_index, conversion_count, |
|
2600
|
1688 nr, max_size, discard); |
|
2117
|
1689 } |
|
3483
|
1690 break; |
|
2117
|
1691 |
|
2213
|
1692 case 'c': |
|
3410
|
1693 { |
|
3483
|
1694 BEGIN_C_CONVERSION (); |
|
3410
|
1695 |
|
|
1696 FINISH_CHARACTER_CONVERSION (); |
|
3483
|
1697 |
|
|
1698 is.setf (flags); |
|
3410
|
1699 } |
|
|
1700 break; |
|
2213
|
1701 |
|
2117
|
1702 case 's': |
|
|
1703 { |
|
3483
|
1704 BEGIN_S_CONVERSION (); |
|
3268
|
1705 |
|
3410
|
1706 FINISH_CHARACTER_CONVERSION (); |
|
2117
|
1707 } |
|
3483
|
1708 break; |
|
|
1709 |
|
|
1710 case '[': case '^': |
|
|
1711 { |
|
|
1712 BEGIN_CHAR_CLASS_CONVERSION (); |
|
|
1713 |
|
|
1714 FINISH_CHARACTER_CONVERSION (); |
|
|
1715 } |
|
|
1716 break; |
|
|
1717 |
|
|
1718 case 'p': |
|
4468
|
1719 error ("%s: unsupported format specifier", who.c_str ()); |
|
2117
|
1720 break; |
|
|
1721 |
|
|
1722 default: |
|
4468
|
1723 error ("%s: internal format error", who.c_str ()); |
|
2117
|
1724 break; |
|
|
1725 } |
|
|
1726 |
|
|
1727 if (! ok ()) |
|
|
1728 { |
|
|
1729 break; |
|
|
1730 } |
|
|
1731 else if (! is) |
|
|
1732 { |
|
3268
|
1733 if (all_char_conv) |
|
2117
|
1734 { |
|
3268
|
1735 if (one_elt_size_spec) |
|
|
1736 { |
|
|
1737 final_nr = 1; |
|
|
1738 final_nc = data_index; |
|
|
1739 } |
|
|
1740 else if (data_index > nr) |
|
2117
|
1741 { |
|
2759
|
1742 final_nr = nr; |
|
3268
|
1743 final_nc = (data_index - 1) / nr + 1; |
|
2117
|
1744 } |
|
|
1745 else |
|
|
1746 { |
|
3268
|
1747 final_nr = data_index; |
|
|
1748 final_nc = 1; |
|
|
1749 } |
|
|
1750 } |
|
|
1751 else if (nr > 0) |
|
|
1752 { |
|
|
1753 if (data_index > nr) |
|
|
1754 { |
|
|
1755 final_nr = nr; |
|
|
1756 final_nc = (data_index - 1) / nr + 1; |
|
|
1757 } |
|
|
1758 else |
|
|
1759 { |
|
|
1760 final_nr = data_index; |
|
2117
|
1761 final_nc = 1; |
|
|
1762 } |
|
|
1763 } |
|
|
1764 else |
|
|
1765 { |
|
3268
|
1766 final_nr = data_index; |
|
2759
|
1767 final_nc = 1; |
|
|
1768 } |
|
|
1769 |
|
3337
|
1770 // If it looks like we have a matching failure, then |
|
|
1771 // reset the failbit in the stream state. |
|
|
1772 |
|
3538
|
1773 if (is.rdstate () & std::ios::failbit) |
|
|
1774 is.clear (is.rdstate () & (~std::ios::failbit)); |
|
3337
|
1775 |
|
2759
|
1776 // XXX FIXME XXX -- is this the right thing to do? |
|
3342
|
1777 |
|
|
1778 if (interactive && name () == "stdin") |
|
2759
|
1779 { |
|
|
1780 is.clear (); |
|
|
1781 |
|
|
1782 // Skip to end of line. |
|
|
1783 |
|
|
1784 bool err; |
|
4468
|
1785 do_gets (-1, err, false, who); |
|
2117
|
1786 } |
|
|
1787 |
|
|
1788 break; |
|
|
1789 } |
|
|
1790 } |
|
|
1791 else |
|
|
1792 { |
|
4468
|
1793 error ("%s: internal format error", who.c_str ()); |
|
2117
|
1794 break; |
|
|
1795 } |
|
|
1796 |
|
3640
|
1797 elt = fmt_list.next (nconv > 0); |
|
2117
|
1798 } |
|
|
1799 } |
|
|
1800 |
|
|
1801 if (ok ()) |
|
|
1802 { |
|
2121
|
1803 mval.resize (final_nr, final_nc, 0.0); |
|
2117
|
1804 |
|
3268
|
1805 retval = mval; |
|
|
1806 |
|
2117
|
1807 if (all_char_conv) |
|
3268
|
1808 retval = retval.convert_to_str (); |
|
2117
|
1809 } |
|
|
1810 |
|
|
1811 return retval; |
|
|
1812 } |
|
|
1813 |
|
|
1814 octave_value |
|
3810
|
1815 octave_base_stream::scanf (const std::string& fmt, const Array<double>& size, |
|
4468
|
1816 int& conversion_count, const std::string& who) |
|
2117
|
1817 { |
|
|
1818 octave_value retval = Matrix (); |
|
|
1819 |
|
3559
|
1820 conversion_count = 0; |
|
2117
|
1821 |
|
3523
|
1822 std::istream *isp = input_stream (); |
|
2117
|
1823 |
|
|
1824 if (isp) |
|
|
1825 { |
|
|
1826 scanf_format_list fmt_list (fmt); |
|
|
1827 |
|
3640
|
1828 if (fmt_list.num_conversions () == -1) |
|
4468
|
1829 ::error ("%s: invalid format specified", who.c_str ()); |
|
3640
|
1830 else |
|
2117
|
1831 { |
|
3640
|
1832 int nr = -1; |
|
|
1833 int nc = -1; |
|
|
1834 |
|
|
1835 bool one_elt_size_spec; |
|
|
1836 |
|
4468
|
1837 get_size (size, nr, nc, one_elt_size_spec, who); |
|
3640
|
1838 |
|
|
1839 if (! error_state) |
|
|
1840 retval = do_scanf (fmt_list, nr, nc, one_elt_size_spec, |
|
4468
|
1841 conversion_count, who); |
|
2215
|
1842 } |
|
|
1843 } |
|
|
1844 else |
|
4468
|
1845 invalid_operation (who, "reading"); |
|
2572
|
1846 |
|
|
1847 return retval; |
|
|
1848 } |
|
|
1849 |
|
2712
|
1850 bool |
|
|
1851 octave_base_stream::do_oscanf (const scanf_format_elt *elt, |
|
4468
|
1852 octave_value& retval, const std::string& who) |
|
2572
|
1853 { |
|
2712
|
1854 bool quit = false; |
|
2215
|
1855 |
|
3523
|
1856 std::istream *isp = input_stream (); |
|
2215
|
1857 |
|
|
1858 if (isp) |
|
|
1859 { |
|
3523
|
1860 std::istream& is = *isp; |
|
2215
|
1861 |
|
3538
|
1862 std::ios::fmtflags flags = is.flags (); |
|
2215
|
1863 |
|
|
1864 if (elt) |
|
|
1865 { |
|
|
1866 const char *fmt = elt->text; |
|
|
1867 |
|
|
1868 bool discard = elt->discard; |
|
|
1869 |
|
|
1870 switch (elt->type) |
|
|
1871 { |
|
3483
|
1872 case scanf_format_elt::whitespace_conversion: |
|
|
1873 DO_WHITESPACE_CONVERSION (); |
|
|
1874 break; |
|
|
1875 |
|
|
1876 case scanf_format_elt::literal_conversion: |
|
|
1877 DO_LITERAL_CONVERSION (); |
|
|
1878 break; |
|
|
1879 |
|
2215
|
1880 case '%': |
|
|
1881 { |
|
3640
|
1882 DO_PCT_CONVERSION (); |
|
|
1883 |
|
|
1884 if (! is) |
|
2712
|
1885 quit = true; |
|
3640
|
1886 |
|
2215
|
1887 } |
|
|
1888 break; |
|
|
1889 |
|
3878
|
1890 case 'd': case 'i': |
|
2215
|
1891 { |
|
|
1892 int tmp; |
|
|
1893 |
|
3640
|
1894 if (OCTAVE_SCAN (is, *elt, &tmp)) |
|
2712
|
1895 { |
|
|
1896 if (! discard) |
|
4233
|
1897 retval = tmp; |
|
2712
|
1898 } |
|
|
1899 else |
|
|
1900 quit = true; |
|
2215
|
1901 } |
|
|
1902 break; |
|
|
1903 |
|
3878
|
1904 case 'o': case 'u': case 'x': |
|
|
1905 { |
|
|
1906 long int tmp; |
|
|
1907 |
|
|
1908 if (OCTAVE_SCAN (is, *elt, &tmp)) |
|
|
1909 { |
|
|
1910 if (! discard) |
|
4254
|
1911 retval = tmp; |
|
3878
|
1912 } |
|
|
1913 else |
|
|
1914 quit = true; |
|
|
1915 } |
|
|
1916 break; |
|
|
1917 |
|
2215
|
1918 case 'e': case 'f': case 'g': |
|
|
1919 { |
|
2600
|
1920 double tmp; |
|
|
1921 |
|
3640
|
1922 if (OCTAVE_SCAN (is, *elt, &tmp)) |
|
2712
|
1923 { |
|
|
1924 if (! discard) |
|
|
1925 retval = tmp; |
|
|
1926 } |
|
|
1927 else |
|
|
1928 quit = true; |
|
2215
|
1929 } |
|
|
1930 break; |
|
|
1931 |
|
|
1932 case 'c': |
|
|
1933 { |
|
3483
|
1934 BEGIN_C_CONVERSION (); |
|
|
1935 |
|
|
1936 if (! discard) |
|
|
1937 retval = tmp; |
|
|
1938 |
|
|
1939 if (! is) |
|
2712
|
1940 quit = true; |
|
2215
|
1941 |
|
|
1942 is.setf (flags); |
|
|
1943 } |
|
|
1944 break; |
|
|
1945 |
|
|
1946 case 's': |
|
|
1947 { |
|
3483
|
1948 BEGIN_S_CONVERSION (); |
|
|
1949 |
|
|
1950 if (! discard) |
|
|
1951 retval = tmp; |
|
2572
|
1952 |
|
3268
|
1953 if (! is) |
|
|
1954 quit = true; |
|
2215
|
1955 } |
|
|
1956 break; |
|
|
1957 |
|
3483
|
1958 case '[': case '^': |
|
|
1959 { |
|
|
1960 BEGIN_CHAR_CLASS_CONVERSION (); |
|
|
1961 |
|
|
1962 if (! discard) |
|
|
1963 retval = tmp; |
|
|
1964 |
|
|
1965 if (! is) |
|
|
1966 quit = true; |
|
|
1967 } |
|
|
1968 break; |
|
|
1969 |
|
|
1970 case 'p': |
|
4468
|
1971 error ("%s: unsupported format specifier", who.c_str ()); |
|
2215
|
1972 break; |
|
|
1973 |
|
|
1974 default: |
|
4468
|
1975 error ("%s: internal format error", who.c_str ()); |
|
2215
|
1976 break; |
|
|
1977 } |
|
|
1978 } |
|
|
1979 |
|
|
1980 if (ok () && is.fail ()) |
|
|
1981 { |
|
4468
|
1982 error ("%s: read error", who.c_str ()); |
|
3483
|
1983 |
|
2215
|
1984 // XXX FIXME XXX -- is this the right thing to do? |
|
3342
|
1985 |
|
|
1986 if (interactive && name () == "stdin") |
|
2215
|
1987 { |
|
|
1988 // Skip to end of line. |
|
|
1989 |
|
|
1990 bool err; |
|
4468
|
1991 do_gets (-1, err, false, who); |
|
2215
|
1992 } |
|
|
1993 } |
|
|
1994 } |
|
|
1995 |
|
2712
|
1996 return quit; |
|
2215
|
1997 } |
|
|
1998 |
|
|
1999 octave_value_list |
|
4468
|
2000 octave_base_stream::oscanf (const std::string& fmt, const std::string& who) |
|
2215
|
2001 { |
|
|
2002 octave_value_list retval; |
|
|
2003 |
|
3523
|
2004 std::istream *isp = input_stream (); |
|
2215
|
2005 |
|
|
2006 if (isp) |
|
|
2007 { |
|
3523
|
2008 std::istream& is = *isp; |
|
2215
|
2009 |
|
|
2010 scanf_format_list fmt_list (fmt); |
|
|
2011 |
|
|
2012 int nconv = fmt_list.num_conversions (); |
|
|
2013 |
|
3640
|
2014 if (nconv == -1) |
|
4468
|
2015 ::error ("%s: invalid format specified", who.c_str ()); |
|
3640
|
2016 else |
|
2215
|
2017 { |
|
3640
|
2018 is.clear (); |
|
|
2019 |
|
|
2020 int len = fmt_list.length (); |
|
|
2021 |
|
|
2022 retval.resize (nconv+1, Matrix ()); |
|
|
2023 |
|
|
2024 const scanf_format_elt *elt = fmt_list.first (); |
|
|
2025 |
|
|
2026 int num_values = 0; |
|
|
2027 |
|
|
2028 bool quit = false; |
|
|
2029 |
|
|
2030 for (int i = 0; i < len; i++) |
|
|
2031 { |
|
|
2032 octave_value tmp; |
|
|
2033 |
|
4468
|
2034 quit = do_oscanf (elt, tmp, who); |
|
3640
|
2035 |
|
|
2036 if (quit) |
|
|
2037 break; |
|
|
2038 else |
|
|
2039 { |
|
|
2040 if (tmp.is_defined ()) |
|
|
2041 retval (num_values++) = tmp; |
|
|
2042 |
|
|
2043 if (! ok ()) |
|
|
2044 break; |
|
|
2045 |
|
|
2046 elt = fmt_list.next (nconv > 0); |
|
|
2047 } |
|
|
2048 } |
|
|
2049 |
|
4233
|
2050 retval(nconv) = num_values; |
|
3640
|
2051 |
|
|
2052 if (! quit) |
|
|
2053 { |
|
|
2054 // Pick up any trailing stuff. |
|
|
2055 if (ok () && len > nconv) |
|
|
2056 { |
|
|
2057 octave_value tmp; |
|
3704
|
2058 |
|
|
2059 elt = fmt_list.next (); |
|
|
2060 |
|
4468
|
2061 do_oscanf (elt, tmp, who); |
|
3640
|
2062 } |
|
|
2063 } |
|
2117
|
2064 } |
|
|
2065 } |
|
|
2066 else |
|
4468
|
2067 invalid_operation (who, "reading"); |
|
2117
|
2068 |
|
|
2069 return retval; |
|
|
2070 } |
|
|
2071 |
|
|
2072 // Functions that are defined for all output streams (output streams |
|
|
2073 // are those that define os). |
|
|
2074 |
|
|
2075 int |
|
|
2076 octave_base_stream::flush (void) |
|
|
2077 { |
|
|
2078 int retval = -1; |
|
|
2079 |
|
3523
|
2080 std::ostream *os = output_stream (); |
|
2117
|
2081 |
|
|
2082 if (os) |
|
|
2083 { |
|
|
2084 os->flush (); |
|
|
2085 |
|
|
2086 if (os->good ()) |
|
|
2087 retval = 0; |
|
|
2088 } |
|
|
2089 else |
|
|
2090 invalid_operation ("fflush", "writing"); |
|
|
2091 |
|
|
2092 return retval; |
|
|
2093 } |
|
|
2094 |
|
|
2095 int |
|
2317
|
2096 octave_base_stream::write (const octave_value& data, |
|
|
2097 oct_data_conv::data_type dt, int skip, |
|
3553
|
2098 oct_mach_info::float_format ffmt) |
|
2117
|
2099 { |
|
|
2100 int retval = -1; |
|
|
2101 |
|
3523
|
2102 std::ostream *osp = output_stream (); |
|
2117
|
2103 |
|
|
2104 if (osp) |
|
|
2105 { |
|
3523
|
2106 std::ostream& os = *osp; |
|
2117
|
2107 |
|
4691
|
2108 int status = 0; |
|
|
2109 |
|
|
2110 // XXX FIXME XXX -- the octave_value class should probably have |
|
|
2111 // a write method that would handle the dispatch for us? |
|
|
2112 // |
|
|
2113 // If DATA is a character matrix, then it is a bit of a kluge to |
|
|
2114 // force it to be a double matrix and then write it out as uchar |
|
|
2115 // data, but this is the quick fix... |
|
|
2116 |
|
|
2117 Matrix mval = data.matrix_value (true); |
|
2117
|
2118 |
|
|
2119 if (! error_state) |
|
|
2120 { |
|
4574
|
2121 if (ffmt == oct_mach_info::flt_fmt_unknown) |
|
3553
|
2122 ffmt = float_format (); |
|
|
2123 |
|
4691
|
2124 status = mval.write (os, dt, skip, ffmt); |
|
|
2125 |
|
|
2126 if (status < 0) |
|
2317
|
2127 error ("fwrite: write error"); |
|
|
2128 else |
|
4691
|
2129 retval = status; |
|
2117
|
2130 } |
|
|
2131 } |
|
|
2132 else |
|
|
2133 invalid_operation ("fwrite", "writing"); |
|
|
2134 |
|
|
2135 return retval; |
|
|
2136 } |
|
|
2137 |
|
|
2138 class |
|
|
2139 printf_value_cache |
|
|
2140 { |
|
|
2141 public: |
|
|
2142 |
|
3653
|
2143 enum state { ok, conversion_error }; |
|
2117
|
2144 |
|
|
2145 printf_value_cache (const octave_value_list& args) |
|
|
2146 : values (args), val_idx (0), elt_idx (0), |
|
|
2147 n_vals (values.length ()), n_elts (0), data (0), |
|
|
2148 curr_state (ok) { } |
|
|
2149 |
|
|
2150 ~printf_value_cache (void) { } |
|
|
2151 |
|
|
2152 // Get the current value as a double and advance the internal pointer. |
|
|
2153 double double_value (void); |
|
|
2154 |
|
|
2155 // Get the current value as an int and advance the internal pointer. |
|
|
2156 int int_value (void); |
|
|
2157 |
|
|
2158 // Get the current value as a string and advance the internal pointer. |
|
3523
|
2159 std::string string_value (void); |
|
2117
|
2160 |
|
3145
|
2161 operator bool () const { return (curr_state == ok); } |
|
2117
|
2162 |
|
3653
|
2163 bool exhausted (void) { return (val_idx >= n_vals); } |
|
2117
|
2164 |
|
|
2165 private: |
|
|
2166 |
|
|
2167 const octave_value_list values; |
|
|
2168 int val_idx; |
|
|
2169 int elt_idx; |
|
|
2170 int n_vals; |
|
|
2171 int n_elts; |
|
|
2172 const double *data; |
|
4874
|
2173 NDArray curr_val; |
|
2117
|
2174 state curr_state; |
|
|
2175 |
|
|
2176 // Must create value cache with values! |
|
|
2177 |
|
|
2178 printf_value_cache (void); |
|
|
2179 |
|
|
2180 // No copying! |
|
|
2181 |
|
|
2182 printf_value_cache (const printf_value_cache&); |
|
|
2183 |
|
|
2184 printf_value_cache& operator = (const printf_value_cache&); |
|
|
2185 }; |
|
|
2186 |
|
|
2187 double |
|
|
2188 printf_value_cache::double_value (void) |
|
|
2189 { |
|
|
2190 double retval = 0.0; |
|
|
2191 |
|
3711
|
2192 if (exhausted ()) |
|
|
2193 curr_state = conversion_error; |
|
|
2194 |
|
|
2195 while (! exhausted ()) |
|
2117
|
2196 { |
|
|
2197 if (! data) |
|
|
2198 { |
|
|
2199 octave_value tmp_val = values (val_idx); |
|
|
2200 |
|
4874
|
2201 curr_val = tmp_val.array_value (); |
|
2117
|
2202 |
|
|
2203 if (! error_state) |
|
|
2204 { |
|
|
2205 elt_idx = 0; |
|
|
2206 n_elts = curr_val.length (); |
|
|
2207 data = curr_val.data (); |
|
|
2208 } |
|
|
2209 else |
|
|
2210 { |
|
|
2211 curr_state = conversion_error; |
|
|
2212 break; |
|
|
2213 } |
|
|
2214 } |
|
|
2215 |
|
|
2216 if (elt_idx < n_elts) |
|
|
2217 { |
|
3653
|
2218 retval = data[elt_idx++]; |
|
|
2219 |
|
|
2220 if (elt_idx >= n_elts) |
|
|
2221 { |
|
|
2222 elt_idx = 0; |
|
|
2223 val_idx++; |
|
|
2224 data = 0; |
|
|
2225 } |
|
|
2226 |
|
2117
|
2227 break; |
|
|
2228 } |
|
|
2229 else |
|
|
2230 { |
|
|
2231 val_idx++; |
|
|
2232 data = 0; |
|
3969
|
2233 |
|
|
2234 if (n_elts == 0 && exhausted ()) |
|
|
2235 curr_state = conversion_error; |
|
|
2236 |
|
2117
|
2237 continue; |
|
|
2238 } |
|
|
2239 } |
|
|
2240 |
|
|
2241 return retval; |
|
|
2242 } |
|
|
2243 |
|
|
2244 int |
|
|
2245 printf_value_cache::int_value (void) |
|
|
2246 { |
|
|
2247 int retval = 0; |
|
|
2248 |
|
|
2249 double dval = double_value (); |
|
|
2250 |
|
|
2251 if (! error_state) |
|
|
2252 { |
|
|
2253 if (D_NINT (dval) == dval) |
|
|
2254 retval = NINT (dval); |
|
|
2255 else |
|
|
2256 curr_state = conversion_error; |
|
|
2257 } |
|
|
2258 |
|
|
2259 return retval; |
|
|
2260 } |
|
|
2261 |
|
3536
|
2262 std::string |
|
2117
|
2263 printf_value_cache::string_value (void) |
|
|
2264 { |
|
3523
|
2265 std::string retval; |
|
2117
|
2266 |
|
4425
|
2267 if (exhausted ()) |
|
|
2268 curr_state = conversion_error; |
|
4257
|
2269 else |
|
2117
|
2270 { |
|
4425
|
2271 octave_value tval = values (val_idx++); |
|
|
2272 |
|
|
2273 if (tval.rows () == 1) |
|
|
2274 retval = tval.string_value (); |
|
|
2275 else |
|
|
2276 { |
|
|
2277 // In the name of Matlab compatibility. |
|
|
2278 |
|
|
2279 charMatrix chm = tval.char_matrix_value (); |
|
|
2280 |
|
|
2281 int nr = chm.rows (); |
|
|
2282 int nc = chm.columns (); |
|
|
2283 |
|
|
2284 int k = 0; |
|
|
2285 |
|
|
2286 retval.resize (nr * nc, '\0'); |
|
|
2287 |
|
|
2288 for (int j = 0; j < nc; j++) |
|
|
2289 for (int i = 0; i < nr; i++) |
|
|
2290 retval[k++] = chm(i,j); |
|
|
2291 } |
|
|
2292 |
|
|
2293 if (error_state) |
|
|
2294 curr_state = conversion_error; |
|
2117
|
2295 } |
|
4257
|
2296 |
|
2117
|
2297 return retval; |
|
|
2298 } |
|
|
2299 |
|
|
2300 // Ugh again and again. |
|
|
2301 |
|
2572
|
2302 template <class T> |
|
3620
|
2303 int |
|
3523
|
2304 do_printf_conv (std::ostream& os, const char *fmt, int nsa, int sa_1, |
|
4468
|
2305 int sa_2, T arg, const std::string& who) |
|
2572
|
2306 { |
|
3620
|
2307 int retval = 0; |
|
|
2308 |
|
2572
|
2309 switch (nsa) |
|
|
2310 { |
|
|
2311 case 2: |
|
3640
|
2312 retval = octave_format (os, fmt, sa_1, sa_2, arg); |
|
2572
|
2313 break; |
|
|
2314 |
|
|
2315 case 1: |
|
3640
|
2316 retval = octave_format (os, fmt, sa_1, arg); |
|
2572
|
2317 break; |
|
|
2318 |
|
|
2319 case 0: |
|
3640
|
2320 retval = octave_format (os, fmt, arg); |
|
2572
|
2321 break; |
|
|
2322 |
|
|
2323 default: |
|
4468
|
2324 ::error ("%s: internal error handling format", who.c_str ()); |
|
2572
|
2325 break; |
|
|
2326 } |
|
3620
|
2327 |
|
|
2328 return retval; |
|
2572
|
2329 } |
|
|
2330 |
|
3620
|
2331 template int |
|
4468
|
2332 do_printf_conv (std::ostream&, const char*, int, int, int, int, |
|
|
2333 const std::string&); |
|
|
2334 |
|
|
2335 template int |
|
|
2336 do_printf_conv (std::ostream&, const char*, int, int, int, long, |
|
|
2337 const std::string&); |
|
|
2338 |
|
3878
|
2339 template int |
|
4468
|
2340 do_printf_conv (std::ostream&, const char*, int, int, int, unsigned int, |
|
|
2341 const std::string&); |
|
|
2342 |
|
|
2343 template int |
|
|
2344 do_printf_conv (std::ostream&, const char*, int, int, int, unsigned long, |
|
|
2345 const std::string&); |
|
|
2346 |
|
|
2347 template int |
|
|
2348 do_printf_conv (std::ostream&, const char*, int, int, int, double, |
|
|
2349 const std::string&); |
|
|
2350 |
|
|
2351 template int |
|
|
2352 do_printf_conv (std::ostream&, const char*, int, int, int, const char*, |
|
|
2353 const std::string&); |
|
2117
|
2354 |
|
|
2355 int |
|
|
2356 octave_base_stream::do_printf (printf_format_list& fmt_list, |
|
4468
|
2357 const octave_value_list& args, |
|
|
2358 const std::string& who) |
|
2117
|
2359 { |
|
3620
|
2360 int retval = 0; |
|
2117
|
2361 |
|
3640
|
2362 int nconv = fmt_list.num_conversions (); |
|
|
2363 |
|
3523
|
2364 std::ostream *osp = output_stream (); |
|
2117
|
2365 |
|
|
2366 if (osp) |
|
|
2367 { |
|
3523
|
2368 std::ostream& os = *osp; |
|
2117
|
2369 |
|
|
2370 const printf_format_elt *elt = fmt_list.first (); |
|
|
2371 |
|
|
2372 printf_value_cache val_cache (args); |
|
|
2373 |
|
|
2374 for (;;) |
|
|
2375 { |
|
4153
|
2376 OCTAVE_QUIT; |
|
|
2377 |
|
2117
|
2378 if (elt) |
|
|
2379 { |
|
3640
|
2380 // NSA is the number of `star' args to convert. |
|
|
2381 |
|
|
2382 int nsa = (elt->fw < 0) + (elt->prec < 0); |
|
2117
|
2383 |
|
|
2384 int sa_1 = 0; |
|
|
2385 int sa_2 = 0; |
|
|
2386 |
|
|
2387 if (nsa > 0) |
|
|
2388 { |
|
|
2389 sa_1 = val_cache.int_value (); |
|
|
2390 |
|
|
2391 if (! val_cache) |
|
|
2392 break; |
|
|
2393 else |
|
|
2394 { |
|
|
2395 if (nsa > 1) |
|
|
2396 { |
|
|
2397 sa_2 = val_cache.int_value (); |
|
|
2398 |
|
|
2399 if (! val_cache) |
|
|
2400 break; |
|
|
2401 } |
|
|
2402 } |
|
|
2403 } |
|
|
2404 |
|
|
2405 const char *fmt = elt->text; |
|
|
2406 |
|
3640
|
2407 if (elt->type == '%') |
|
|
2408 { |
|
|
2409 os << "%"; |
|
|
2410 retval++; |
|
|
2411 } |
|
|
2412 else if (elt->args == 0 && elt->text) |
|
|
2413 { |
|
|
2414 os << elt->text; |
|
|
2415 retval += strlen (elt->text); |
|
|
2416 } |
|
4257
|
2417 else if (elt->type == 's') |
|
3640
|
2418 { |
|
|
2419 std::string val = val_cache.string_value (); |
|
|
2420 |
|
|
2421 if (val_cache) |
|
|
2422 retval += do_printf_conv (os, fmt, nsa, sa_1, |
|
4468
|
2423 sa_2, val.c_str (), who); |
|
3640
|
2424 else |
|
|
2425 break; |
|
|
2426 } |
|
2117
|
2427 else |
|
|
2428 { |
|
3640
|
2429 double val = val_cache.double_value (); |
|
|
2430 |
|
|
2431 if (val_cache) |
|
2117
|
2432 { |
|
4693
|
2433 if (lo_ieee_is_NaN_or_NA (val) || xisinf (val) |
|
|
2434 || ((val > INT_MAX || val < INT_MIN) |
|
|
2435 && (elt->type == 'd' |
|
|
2436 || elt->type == 'i' |
|
|
2437 || elt->type == 'c' |
|
|
2438 || elt->type == 'o' |
|
|
2439 || elt->type == 'x' |
|
|
2440 || elt->type == 'X' |
|
|
2441 || elt->type == 'u'))) |
|
4303
|
2442 { |
|
|
2443 std::string tfmt = fmt; |
|
|
2444 |
|
4693
|
2445 if (lo_ieee_is_NaN_or_NA (val) || xisinf (val)) |
|
4305
|
2446 { |
|
|
2447 tfmt.replace (tfmt.rfind (elt->type), 1, 1, 's'); |
|
|
2448 |
|
|
2449 const char *tval = xisinf (val) |
|
4693
|
2450 ? (val < 0 ? "-Inf" : "Inf") |
|
|
2451 : (lo_ieee_is_NA (val) ? "NA" : "NaN"); |
|
4305
|
2452 |
|
|
2453 retval += do_printf_conv (os, tfmt.c_str (), |
|
4468
|
2454 nsa, sa_1, sa_2, |
|
|
2455 tval, who); |
|
4305
|
2456 } |
|
|
2457 else |
|
|
2458 { |
|
|
2459 tfmt.replace (tfmt.rfind (elt->type), 1, ".f"); |
|
|
2460 |
|
|
2461 retval += do_printf_conv (os, tfmt.c_str (), |
|
4468
|
2462 nsa, sa_1, sa_2, |
|
|
2463 val, who); |
|
4305
|
2464 } |
|
4303
|
2465 } |
|
|
2466 else |
|
3640
|
2467 { |
|
4303
|
2468 switch (elt->type) |
|
|
2469 { |
|
|
2470 case 'd': case 'i': case 'c': |
|
|
2471 { |
|
|
2472 if (elt->modifier == 'l') |
|
|
2473 retval += do_printf_conv |
|
|
2474 (os, fmt, nsa, sa_1, sa_2, |
|
4468
|
2475 static_cast<long int> (val), who); |
|
4303
|
2476 else |
|
|
2477 retval += do_printf_conv |
|
|
2478 (os, fmt, nsa, sa_1, sa_2, |
|
4468
|
2479 static_cast<int> (val), who); |
|
4303
|
2480 } |
|
|
2481 break; |
|
|
2482 |
|
|
2483 case 'o': case 'x': case 'X': case 'u': |
|
|
2484 { |
|
|
2485 if (elt->modifier == 'l') |
|
|
2486 retval += do_printf_conv |
|
|
2487 (os, fmt, nsa, sa_1, sa_2, |
|
4468
|
2488 static_cast<unsigned long int> (val), |
|
|
2489 who); |
|
4303
|
2490 else |
|
|
2491 retval += do_printf_conv |
|
|
2492 (os, fmt, nsa, sa_1, sa_2, |
|
4468
|
2493 static_cast<unsigned int> (val), who); |
|
4303
|
2494 } |
|
|
2495 break; |
|
|
2496 |
|
|
2497 case 'f': case 'e': case 'E': |
|
|
2498 case 'g': case 'G': |
|
|
2499 retval |
|
|
2500 += do_printf_conv (os, fmt, nsa, sa_1, sa_2, |
|
4468
|
2501 val, who); |
|
4303
|
2502 break; |
|
|
2503 |
|
|
2504 default: |
|
4468
|
2505 error ("%s: invalid format specifier", |
|
|
2506 who.c_str ()); |
|
4303
|
2507 return -1; |
|
|
2508 break; |
|
|
2509 } |
|
3640
|
2510 } |
|
2117
|
2511 } |
|
|
2512 else |
|
3620
|
2513 break; |
|
2117
|
2514 } |
|
|
2515 |
|
3620
|
2516 if (! os) |
|
2117
|
2517 { |
|
4468
|
2518 error ("%s: write error", who.c_str ()); |
|
2117
|
2519 break; |
|
|
2520 } |
|
|
2521 } |
|
|
2522 else |
|
|
2523 { |
|
4468
|
2524 ::error ("%s: internal error handling format", who.c_str ()); |
|
2117
|
2525 retval = -1; |
|
|
2526 break; |
|
|
2527 } |
|
|
2528 |
|
3640
|
2529 elt = fmt_list.next (nconv > 0 && ! val_cache.exhausted ()); |
|
|
2530 |
|
|
2531 if (! elt || (val_cache.exhausted () && elt->args > 0)) |
|
|
2532 break; |
|
|
2533 } |
|
2117
|
2534 } |
|
3640
|
2535 else |
|
4468
|
2536 invalid_operation (who, "writing"); |
|
2117
|
2537 |
|
|
2538 return retval; |
|
|
2539 } |
|
|
2540 |
|
|
2541 int |
|
3640
|
2542 octave_base_stream::printf (const std::string& fmt, |
|
4468
|
2543 const octave_value_list& args, |
|
|
2544 const std::string& who) |
|
2117
|
2545 { |
|
3640
|
2546 int retval = 0; |
|
|
2547 |
|
|
2548 printf_format_list fmt_list (fmt); |
|
|
2549 |
|
|
2550 if (fmt_list.num_conversions () == -1) |
|
4468
|
2551 ::error ("%s: invalid format specified", who.c_str ()); |
|
2117
|
2552 else |
|
4468
|
2553 retval = do_printf (fmt_list, args, who); |
|
2117
|
2554 |
|
|
2555 return retval; |
|
|
2556 } |
|
|
2557 |
|
|
2558 int |
|
4468
|
2559 octave_base_stream::puts (const std::string& s, const std::string& who) |
|
2117
|
2560 { |
|
|
2561 int retval = -1; |
|
|
2562 |
|
3523
|
2563 std::ostream *osp = output_stream (); |
|
2117
|
2564 |
|
|
2565 if (osp) |
|
|
2566 { |
|
3523
|
2567 std::ostream& os = *osp; |
|
2117
|
2568 |
|
|
2569 os << s; |
|
|
2570 |
|
|
2571 if (os) |
|
|
2572 { |
|
|
2573 // XXX FIXME XXX -- why does this seem to be necessary? |
|
|
2574 // Without it, output from a loop like |
|
|
2575 // |
|
|
2576 // for i = 1:100, fputs (stdout, "foo\n"); endfor |
|
|
2577 // |
|
|
2578 // doesn't seem to go to the pager immediately. |
|
|
2579 |
|
|
2580 os.flush (); |
|
|
2581 |
|
|
2582 if (os) |
|
|
2583 retval = 0; |
|
|
2584 else |
|
4468
|
2585 error ("%s: write error", who.c_str ()); |
|
2117
|
2586 } |
|
|
2587 else |
|
4468
|
2588 error ("%s: write error", who.c_str ()); |
|
2117
|
2589 } |
|
|
2590 else |
|
4468
|
2591 invalid_operation (who, "writing"); |
|
2117
|
2592 |
|
|
2593 return retval; |
|
|
2594 } |
|
|
2595 |
|
|
2596 int |
|
|
2597 octave_base_stream::rewind (void) |
|
|
2598 { |
|
3538
|
2599 return seek (0, std::ios::beg); |
|
2117
|
2600 } |
|
|
2601 |
|
|
2602 // Return current error message for this stream. |
|
|
2603 |
|
3536
|
2604 std::string |
|
2435
|
2605 octave_base_stream::error (bool clear_err, int& err_num) |
|
2117
|
2606 { |
|
2435
|
2607 err_num = fail ? -1 : 0; |
|
2117
|
2608 |
|
3523
|
2609 std::string tmp = errmsg; |
|
2117
|
2610 |
|
|
2611 if (clear_err) |
|
|
2612 clear (); |
|
|
2613 |
|
|
2614 return tmp; |
|
|
2615 } |
|
|
2616 |
|
|
2617 void |
|
4468
|
2618 octave_base_stream::invalid_operation (const std::string& who, const char *rw) |
|
2117
|
2619 { |
|
4468
|
2620 // Note that this is not ::error () ! |
|
|
2621 |
|
|
2622 error (who + ": stream not open for " + rw); |
|
2117
|
2623 } |
|
|
2624 |
|
3552
|
2625 octave_stream::octave_stream (octave_base_stream *bs) |
|
3340
|
2626 : rep (bs) |
|
|
2627 { |
|
|
2628 if (rep) |
|
|
2629 rep->count = 1; |
|
|
2630 } |
|
|
2631 |
|
|
2632 octave_stream::~octave_stream (void) |
|
|
2633 { |
|
|
2634 if (rep && --rep->count == 0) |
|
|
2635 delete rep; |
|
|
2636 } |
|
|
2637 |
|
|
2638 octave_stream::octave_stream (const octave_stream& s) |
|
|
2639 : rep (s.rep) |
|
|
2640 { |
|
|
2641 if (rep) |
|
|
2642 rep->count++; |
|
|
2643 } |
|
|
2644 |
|
|
2645 octave_stream& |
|
|
2646 octave_stream::operator = (const octave_stream& s) |
|
|
2647 { |
|
|
2648 if (rep != s.rep) |
|
|
2649 { |
|
|
2650 if (rep && --rep->count == 0) |
|
|
2651 delete rep; |
|
|
2652 |
|
|
2653 rep = s.rep; |
|
|
2654 |
|
|
2655 if (rep) |
|
|
2656 rep->count++; |
|
|
2657 } |
|
|
2658 |
|
|
2659 return *this; |
|
|
2660 } |
|
|
2661 |
|
2117
|
2662 int |
|
|
2663 octave_stream::flush (void) |
|
|
2664 { |
|
|
2665 int retval = -1; |
|
|
2666 |
|
|
2667 if (stream_ok ("fflush")) |
|
|
2668 retval = rep->flush (); |
|
|
2669 |
|
|
2670 return retval; |
|
|
2671 } |
|
|
2672 |
|
3536
|
2673 std::string |
|
4468
|
2674 octave_stream::getl (int max_len, bool& err, const std::string& who) |
|
2117
|
2675 { |
|
3523
|
2676 std::string retval; |
|
2117
|
2677 |
|
4468
|
2678 if (stream_ok (who)) |
|
|
2679 retval = rep->getl (max_len, err, who); |
|
2117
|
2680 |
|
|
2681 return retval; |
|
|
2682 } |
|
|
2683 |
|
3536
|
2684 std::string |
|
4468
|
2685 octave_stream::getl (const octave_value& tc_max_len, bool& err, |
|
|
2686 const std::string& who) |
|
2117
|
2687 { |
|
3523
|
2688 std::string retval; |
|
2117
|
2689 |
|
|
2690 err = false; |
|
|
2691 |
|
|
2692 int conv_err = 0; |
|
|
2693 |
|
|
2694 int max_len = convert_to_valid_int (tc_max_len, conv_err); |
|
|
2695 |
|
|
2696 if (conv_err || max_len < 0) |
|
|
2697 { |
|
|
2698 err = true; |
|
4468
|
2699 ::error ("%s: invalid maximum length specified", who.c_str ()); |
|
2117
|
2700 } |
|
|
2701 else |
|
4468
|
2702 retval = getl (max_len, err, who); |
|
2117
|
2703 |
|
|
2704 return retval; |
|
|
2705 } |
|
|
2706 |
|
3536
|
2707 std::string |
|
4468
|
2708 octave_stream::gets (int max_len, bool& err, const std::string& who) |
|
2117
|
2709 { |
|
3523
|
2710 std::string retval; |
|
2117
|
2711 |
|
4468
|
2712 if (stream_ok (who)) |
|
|
2713 retval = rep->gets (max_len, err, who); |
|
2117
|
2714 |
|
|
2715 return retval; |
|
|
2716 } |
|
|
2717 |
|
3536
|
2718 std::string |
|
4468
|
2719 octave_stream::gets (const octave_value& tc_max_len, bool& err, |
|
|
2720 const std::string& who) |
|
2117
|
2721 { |
|
3523
|
2722 std::string retval; |
|
2117
|
2723 |
|
|
2724 err = false; |
|
|
2725 |
|
|
2726 int conv_err = 0; |
|
|
2727 |
|
|
2728 int max_len = convert_to_valid_int (tc_max_len, conv_err); |
|
|
2729 |
|
|
2730 if (conv_err || max_len < 0) |
|
|
2731 { |
|
|
2732 err = true; |
|
4468
|
2733 ::error ("%s: invalid maximum length specified", who.c_str ()); |
|
2117
|
2734 } |
|
|
2735 else |
|
4468
|
2736 retval = gets (max_len, err, who); |
|
2117
|
2737 |
|
|
2738 return retval; |
|
|
2739 } |
|
|
2740 |
|
|
2741 int |
|
4797
|
2742 octave_stream::seek (long offset, int origin) |
|
2117
|
2743 { |
|
|
2744 int retval = -1; |
|
|
2745 |
|
|
2746 if (stream_ok ("fseek")) |
|
4889
|
2747 { |
|
|
2748 clearerr (); |
|
|
2749 |
|
|
2750 retval = rep->seek (offset, origin); |
|
|
2751 } |
|
2117
|
2752 |
|
|
2753 return retval; |
|
|
2754 } |
|
|
2755 |
|
|
2756 int |
|
|
2757 octave_stream::seek (const octave_value& tc_offset, |
|
|
2758 const octave_value& tc_origin) |
|
|
2759 { |
|
|
2760 int retval = -1; |
|
|
2761 |
|
4797
|
2762 long xoffset = tc_offset.long_value (true); |
|
4645
|
2763 |
|
|
2764 if (! error_state) |
|
2117
|
2765 { |
|
4645
|
2766 int conv_err = 0; |
|
|
2767 |
|
4797
|
2768 int origin = SEEK_SET; |
|
2117
|
2769 |
|
2341
|
2770 if (tc_origin.is_string ()) |
|
2117
|
2771 { |
|
3523
|
2772 std::string xorigin = tc_origin.string_value (); |
|
2341
|
2773 |
|
|
2774 if (xorigin == "bof") |
|
4797
|
2775 origin = SEEK_SET; |
|
2341
|
2776 else if (xorigin == "cof") |
|
4797
|
2777 origin = SEEK_CUR; |
|
2341
|
2778 else if (xorigin == "eof") |
|
4797
|
2779 origin = SEEK_END; |
|
2117
|
2780 else |
|
|
2781 conv_err = -1; |
|
|
2782 } |
|
2341
|
2783 else |
|
|
2784 { |
|
|
2785 int xorigin = convert_to_valid_int (tc_origin, conv_err); |
|
|
2786 |
|
|
2787 if (! conv_err) |
|
|
2788 { |
|
|
2789 if (xorigin == -1) |
|
4797
|
2790 origin = SEEK_SET; |
|
2341
|
2791 else if (xorigin == 0) |
|
4797
|
2792 origin = SEEK_CUR; |
|
2341
|
2793 else if (xorigin == 1) |
|
4797
|
2794 origin = SEEK_END; |
|
2341
|
2795 else |
|
|
2796 conv_err = -1; |
|
|
2797 } |
|
|
2798 } |
|
2117
|
2799 |
|
|
2800 if (! conv_err) |
|
|
2801 retval = seek (xoffset, origin); |
|
|
2802 else |
|
|
2803 error ("fseek: invalid value for origin"); |
|
|
2804 } |
|
|
2805 else |
|
|
2806 error ("fseek: invalid value for offset"); |
|
|
2807 |
|
|
2808 return retval; |
|
|
2809 } |
|
|
2810 |
|
4797
|
2811 long |
|
|
2812 octave_stream::tell (void) |
|
2117
|
2813 { |
|
4797
|
2814 long retval = -1; |
|
2117
|
2815 |
|
|
2816 if (stream_ok ("tell")) |
|
|
2817 retval = rep->tell (); |
|
|
2818 |
|
|
2819 return retval; |
|
|
2820 } |
|
|
2821 |
|
|
2822 int |
|
|
2823 octave_stream::rewind (void) |
|
|
2824 { |
|
|
2825 int retval = -1; |
|
|
2826 |
|
|
2827 if (stream_ok ("frewind")) |
|
|
2828 retval = rep->rewind (); |
|
|
2829 |
|
|
2830 return retval; |
|
|
2831 } |
|
|
2832 |
|
3340
|
2833 bool |
|
|
2834 octave_stream::is_open (void) const |
|
|
2835 { |
|
|
2836 bool retval = false; |
|
|
2837 |
|
|
2838 if (stream_ok ("is_open")) |
|
|
2839 retval = rep->is_open (); |
|
|
2840 |
|
|
2841 return retval; |
|
|
2842 } |
|
|
2843 |
|
|
2844 void |
|
|
2845 octave_stream::close (void) |
|
|
2846 { |
|
|
2847 if (stream_ok ("close")) |
|
|
2848 rep->close (); |
|
|
2849 } |
|
|
2850 |
|
2117
|
2851 octave_value |
|
3810
|
2852 octave_stream::read (const Array<double>& size, |
|
2317
|
2853 oct_data_conv::data_type dt, int skip, |
|
|
2854 oct_mach_info::float_format flt_fmt, int& count) |
|
2117
|
2855 { |
|
|
2856 octave_value retval; |
|
|
2857 |
|
|
2858 if (stream_ok ("fread")) |
|
2317
|
2859 retval = rep->read (size, dt, skip, flt_fmt, count); |
|
2117
|
2860 |
|
|
2861 return retval; |
|
|
2862 } |
|
|
2863 |
|
|
2864 int |
|
|
2865 octave_stream::write (const octave_value& data, |
|
2317
|
2866 oct_data_conv::data_type dt, int skip, |
|
|
2867 oct_mach_info::float_format flt_fmt) |
|
2117
|
2868 { |
|
|
2869 int retval = -1; |
|
|
2870 |
|
|
2871 if (stream_ok ("fwrite")) |
|
2317
|
2872 retval = rep->write (data, dt, skip, flt_fmt); |
|
2117
|
2873 |
|
|
2874 return retval; |
|
|
2875 } |
|
|
2876 |
|
|
2877 octave_value |
|
3810
|
2878 octave_stream::scanf (const std::string& fmt, const Array<double>& size, |
|
4468
|
2879 int& count, const std::string& who) |
|
2117
|
2880 { |
|
|
2881 octave_value retval; |
|
|
2882 |
|
4468
|
2883 if (stream_ok (who)) |
|
|
2884 retval = rep->scanf (fmt, size, count, who); |
|
2117
|
2885 |
|
|
2886 return retval; |
|
|
2887 } |
|
|
2888 |
|
2215
|
2889 octave_value_list |
|
4468
|
2890 octave_stream::oscanf (const std::string& fmt, const std::string& who) |
|
2215
|
2891 { |
|
|
2892 octave_value_list retval; |
|
|
2893 |
|
4468
|
2894 if (stream_ok (who)) |
|
|
2895 retval = rep->oscanf (fmt, who); |
|
2215
|
2896 |
|
|
2897 return retval; |
|
|
2898 } |
|
|
2899 |
|
2117
|
2900 int |
|
4468
|
2901 octave_stream::printf (const std::string& fmt, const octave_value_list& args, |
|
|
2902 const std::string& who) |
|
2117
|
2903 { |
|
|
2904 int retval = -1; |
|
|
2905 |
|
4468
|
2906 if (stream_ok (who)) |
|
|
2907 retval = rep->printf (fmt, args, who); |
|
2117
|
2908 |
|
|
2909 return retval; |
|
|
2910 } |
|
|
2911 |
|
|
2912 int |
|
4468
|
2913 octave_stream::puts (const std::string& s, const std::string& who) |
|
2117
|
2914 { |
|
|
2915 int retval = -1; |
|
|
2916 |
|
4468
|
2917 if (stream_ok (who)) |
|
|
2918 retval = rep->puts (s, who); |
|
2117
|
2919 |
|
|
2920 return retval; |
|
|
2921 } |
|
|
2922 |
|
|
2923 // XXX FIXME XXX -- maybe this should work for string arrays too. |
|
|
2924 |
|
|
2925 int |
|
4468
|
2926 octave_stream::puts (const octave_value& tc_s, const std::string& who) |
|
2117
|
2927 { |
|
|
2928 int retval = -1; |
|
|
2929 |
|
|
2930 if (tc_s.is_string ()) |
|
|
2931 { |
|
3523
|
2932 std::string s = tc_s.string_value (); |
|
4468
|
2933 retval = rep->puts (s, who); |
|
2117
|
2934 } |
|
|
2935 else |
|
4468
|
2936 { |
|
|
2937 // Note that this is not ::error () ! |
|
|
2938 |
|
|
2939 error (who + ": argument must be a string"); |
|
|
2940 } |
|
2117
|
2941 |
|
|
2942 return retval; |
|
|
2943 } |
|
|
2944 |
|
|
2945 bool |
|
|
2946 octave_stream::eof (void) const |
|
|
2947 { |
|
|
2948 int retval = -1; |
|
|
2949 |
|
|
2950 if (stream_ok ("feof")) |
|
|
2951 retval = rep->eof (); |
|
|
2952 |
|
|
2953 return retval; |
|
|
2954 } |
|
|
2955 |
|
3536
|
2956 std::string |
|
2435
|
2957 octave_stream::error (bool clear, int& err_num) |
|
2117
|
2958 { |
|
3523
|
2959 std::string retval; |
|
2117
|
2960 |
|
|
2961 if (stream_ok ("ferror", false)) |
|
2435
|
2962 retval = rep->error (clear, err_num); |
|
2117
|
2963 |
|
|
2964 return retval; |
|
|
2965 } |
|
|
2966 |
|
3536
|
2967 std::string |
|
3340
|
2968 octave_stream::name (void) const |
|
2117
|
2969 { |
|
3523
|
2970 std::string retval; |
|
2117
|
2971 |
|
|
2972 if (stream_ok ("name")) |
|
|
2973 retval = rep->name (); |
|
|
2974 |
|
|
2975 return retval; |
|
|
2976 } |
|
|
2977 |
|
|
2978 int |
|
3340
|
2979 octave_stream::mode (void) const |
|
2117
|
2980 { |
|
|
2981 int retval = 0; |
|
|
2982 |
|
|
2983 if (stream_ok ("mode")) |
|
|
2984 retval = rep->mode (); |
|
|
2985 |
|
|
2986 return retval; |
|
|
2987 } |
|
|
2988 |
|
2317
|
2989 oct_mach_info::float_format |
|
3340
|
2990 octave_stream::float_format (void) const |
|
2117
|
2991 { |
|
4574
|
2992 oct_mach_info::float_format retval = oct_mach_info::flt_fmt_unknown; |
|
2317
|
2993 |
|
|
2994 if (stream_ok ("float_format")) |
|
|
2995 retval = rep->float_format (); |
|
2117
|
2996 |
|
|
2997 return retval; |
|
|
2998 } |
|
|
2999 |
|
3536
|
3000 std::string |
|
2117
|
3001 octave_stream::mode_as_string (int mode) |
|
|
3002 { |
|
3523
|
3003 std::string retval = "???"; |
|
3775
|
3004 std::ios::openmode in_mode = static_cast<std::ios::openmode> (mode); |
|
|
3005 |
|
|
3006 if (in_mode == std::ios::in) |
|
|
3007 retval = "r"; |
|
|
3008 else if (in_mode == std::ios::out |
|
4078
|
3009 || in_mode == (std::ios::out | std::ios::trunc)) |
|
3775
|
3010 retval = "w"; |
|
4078
|
3011 else if (in_mode == (std::ios::out | std::ios::app)) |
|
3775
|
3012 retval = "a"; |
|
4078
|
3013 else if (in_mode == (std::ios::in | std::ios::out)) |
|
3775
|
3014 retval = "r+"; |
|
4078
|
3015 else if (in_mode == (std::ios::in | std::ios::out | std::ios::trunc)) |
|
3775
|
3016 retval = "w+"; |
|
4078
|
3017 else if (in_mode == (std::ios::in | std::ios::out | std::ios::ate)) |
|
3775
|
3018 retval = "a+"; |
|
4078
|
3019 else if (in_mode == (std::ios::in | std::ios::binary)) |
|
3775
|
3020 retval = "rb"; |
|
4078
|
3021 else if (in_mode == (std::ios::out | std::ios::binary) |
|
|
3022 || in_mode == (std::ios::out | std::ios::trunc | std::ios::binary)) |
|
3775
|
3023 retval = "wb"; |
|
4078
|
3024 else if (in_mode == (std::ios::out | std::ios::app | std::ios::binary)) |
|
3775
|
3025 retval = "ab"; |
|
4078
|
3026 else if (in_mode == (std::ios::in | std::ios::out | std::ios::binary)) |
|
3775
|
3027 retval = "r+b"; |
|
4078
|
3028 else if (in_mode == (std::ios::in | std::ios::out | std::ios::trunc |
|
|
3029 | std::ios::binary)) |
|
3775
|
3030 retval = "w+b"; |
|
4078
|
3031 else if (in_mode == (std::ios::in | std::ios::out | std::ios::ate |
|
|
3032 | std::ios::binary)) |
|
3775
|
3033 retval = "a+b"; |
|
2117
|
3034 |
|
|
3035 return retval; |
|
|
3036 } |
|
|
3037 |
|
|
3038 void |
|
4468
|
3039 octave_stream::invalid_stream_error (const std::string& who) const |
|
2117
|
3040 { |
|
4468
|
3041 ::error ("%s: attempt to use invalid I/O stream", who.c_str ()); |
|
2117
|
3042 } |
|
|
3043 |
|
|
3044 octave_stream_list *octave_stream_list::instance = 0; |
|
|
3045 |
|
2926
|
3046 bool |
|
|
3047 octave_stream_list::instance_ok (void) |
|
|
3048 { |
|
|
3049 bool retval = true; |
|
|
3050 |
|
|
3051 if (! instance) |
|
|
3052 instance = new octave_stream_list (); |
|
|
3053 |
|
|
3054 if (! instance) |
|
|
3055 { |
|
|
3056 ::error ("unable to create stream list object!"); |
|
|
3057 |
|
|
3058 retval = false; |
|
|
3059 } |
|
|
3060 |
|
|
3061 return retval; |
|
|
3062 } |
|
|
3063 |
|
|
3064 octave_value |
|
3340
|
3065 octave_stream_list::insert (const octave_stream& os) |
|
2926
|
3066 { |
|
3340
|
3067 return (instance_ok ()) ? instance->do_insert (os) : octave_value (-1.0); |
|
2926
|
3068 } |
|
|
3069 |
|
3340
|
3070 octave_stream |
|
3523
|
3071 octave_stream_list::lookup (int fid, const std::string& who) |
|
2926
|
3072 { |
|
3341
|
3073 return (instance_ok ()) ? instance->do_lookup (fid, who) : octave_stream (); |
|
2926
|
3074 } |
|
|
3075 |
|
3340
|
3076 octave_stream |
|
3523
|
3077 octave_stream_list::lookup (const octave_value& fid, const std::string& who) |
|
2926
|
3078 { |
|
3341
|
3079 return (instance_ok ()) ? instance->do_lookup (fid, who) : octave_stream (); |
|
2926
|
3080 } |
|
|
3081 |
|
|
3082 int |
|
3523
|
3083 octave_stream_list::remove (int fid, const std::string& who) |
|
2926
|
3084 { |
|
3341
|
3085 return (instance_ok ()) ? instance->do_remove (fid, who) : -1; |
|
2926
|
3086 } |
|
|
3087 |
|
|
3088 int |
|
3523
|
3089 octave_stream_list::remove (const octave_value& fid, const std::string& who) |
|
2926
|
3090 { |
|
3341
|
3091 return (instance_ok ()) ? instance->do_remove (fid, who) : -1; |
|
2926
|
3092 } |
|
|
3093 |
|
|
3094 void |
|
|
3095 octave_stream_list::clear (void) |
|
|
3096 { |
|
|
3097 if (instance) |
|
|
3098 instance->do_clear (); |
|
|
3099 } |
|
|
3100 |
|
|
3101 string_vector |
|
|
3102 octave_stream_list::get_info (int fid) |
|
|
3103 { |
|
|
3104 return (instance_ok ()) ? instance->do_get_info (fid) : string_vector (); |
|
|
3105 } |
|
|
3106 |
|
|
3107 string_vector |
|
|
3108 octave_stream_list::get_info (const octave_value& fid) |
|
|
3109 { |
|
|
3110 return (instance_ok ()) ? instance->do_get_info (fid) : string_vector (); |
|
|
3111 } |
|
|
3112 |
|
3536
|
3113 std::string |
|
2926
|
3114 octave_stream_list::list_open_files (void) |
|
|
3115 { |
|
3523
|
3116 return (instance_ok ()) ? instance->do_list_open_files () : std::string (); |
|
2926
|
3117 } |
|
|
3118 |
|
|
3119 octave_value |
|
|
3120 octave_stream_list::open_file_numbers (void) |
|
|
3121 { |
|
|
3122 return (instance_ok ()) |
|
|
3123 ? instance->do_open_file_numbers () : octave_value (); |
|
|
3124 } |
|
|
3125 |
|
|
3126 int |
|
|
3127 octave_stream_list::get_file_number (const octave_value& fid) |
|
|
3128 { |
|
|
3129 return (instance_ok ()) ? instance->do_get_file_number (fid) : -1; |
|
|
3130 } |
|
|
3131 |
|
2902
|
3132 octave_value |
|
3340
|
3133 octave_stream_list::do_insert (const octave_stream& os) |
|
2117
|
3134 { |
|
3340
|
3135 octave_value retval; |
|
|
3136 |
|
2902
|
3137 int stream_number = -1; |
|
|
3138 |
|
3340
|
3139 // Insert item in first open slot, increasing size of list if |
|
|
3140 // necessary. |
|
|
3141 |
|
|
3142 for (int i = 0; i < curr_len; i++) |
|
2117
|
3143 { |
|
3340
|
3144 octave_stream tmp = list(i); |
|
|
3145 |
|
|
3146 if (! tmp) |
|
2117
|
3147 { |
|
3340
|
3148 list(i) = os; |
|
|
3149 stream_number = i; |
|
|
3150 break; |
|
2117
|
3151 } |
|
|
3152 } |
|
3340
|
3153 |
|
|
3154 if (stream_number < 0) |
|
|
3155 { |
|
|
3156 int total_len = list.length (); |
|
|
3157 |
|
|
3158 if (curr_len == total_len) |
|
|
3159 list.resize (total_len * 2); |
|
|
3160 |
|
|
3161 list(curr_len) = os; |
|
|
3162 stream_number = curr_len; |
|
|
3163 curr_len++; |
|
|
3164 } |
|
2117
|
3165 |
|
2902
|
3166 return octave_value (os, stream_number); |
|
2117
|
3167 } |
|
|
3168 |
|
3341
|
3169 static void |
|
3523
|
3170 gripe_invalid_file_id (int fid, const std::string& who) |
|
3341
|
3171 { |
|
|
3172 if (who.empty ()) |
|
|
3173 ::error ("invalid stream number = %d", fid); |
|
|
3174 else |
|
|
3175 ::error ("%s: invalid stream number = %d", who.c_str (), fid); |
|
|
3176 } |
|
|
3177 |
|
3340
|
3178 octave_stream |
|
3523
|
3179 octave_stream_list::do_lookup (int fid, const std::string& who) const |
|
2117
|
3180 { |
|
3340
|
3181 octave_stream retval; |
|
2117
|
3182 |
|
|
3183 if (fid >= 0 && fid < curr_len) |
|
3340
|
3184 retval = list(fid); |
|
3341
|
3185 else |
|
|
3186 gripe_invalid_file_id (fid, who); |
|
2117
|
3187 |
|
|
3188 return retval; |
|
|
3189 } |
|
|
3190 |
|
3340
|
3191 octave_stream |
|
3341
|
3192 octave_stream_list::do_lookup (const octave_value& fid, |
|
3523
|
3193 const std::string& who) const |
|
2117
|
3194 { |
|
3340
|
3195 octave_stream retval; |
|
2117
|
3196 |
|
|
3197 int i = get_file_number (fid); |
|
|
3198 |
|
|
3199 if (! error_state) |
|
3341
|
3200 retval = do_lookup (i, who); |
|
2117
|
3201 |
|
|
3202 return retval; |
|
|
3203 } |
|
|
3204 |
|
|
3205 int |
|
3523
|
3206 octave_stream_list::do_remove (int fid, const std::string& who) |
|
2117
|
3207 { |
|
|
3208 int retval = -1; |
|
|
3209 |
|
3531
|
3210 // Can't remove stdin (std::cin), stdout (std::cout), or stderr |
|
|
3211 // (std::cerr). |
|
2117
|
3212 |
|
|
3213 if (fid > 2 && fid < curr_len) |
|
|
3214 { |
|
3340
|
3215 octave_stream os = list(fid); |
|
2117
|
3216 |
|
3341
|
3217 if (os.is_valid ()) |
|
2117
|
3218 { |
|
3340
|
3219 os.close (); |
|
|
3220 list(fid) = octave_stream (); |
|
2117
|
3221 retval = 0; |
|
|
3222 } |
|
3341
|
3223 else |
|
|
3224 gripe_invalid_file_id (fid, who); |
|
2117
|
3225 } |
|
3341
|
3226 else |
|
|
3227 gripe_invalid_file_id (fid, who); |
|
2117
|
3228 |
|
|
3229 return retval; |
|
|
3230 } |
|
|
3231 |
|
|
3232 int |
|
3523
|
3233 octave_stream_list::do_remove (const octave_value& fid, const std::string& who) |
|
2117
|
3234 { |
|
|
3235 int retval = -1; |
|
|
3236 |
|
|
3237 int i = get_file_number (fid); |
|
|
3238 |
|
|
3239 if (! error_state) |
|
3341
|
3240 retval = do_remove (i, who); |
|
2117
|
3241 |
|
|
3242 return retval; |
|
|
3243 } |
|
|
3244 |
|
|
3245 void |
|
|
3246 octave_stream_list::do_clear (void) |
|
|
3247 { |
|
|
3248 // Do flush stdout and stderr. |
|
|
3249 |
|
3340
|
3250 list(0) . flush (); |
|
|
3251 list(1) . flush (); |
|
2117
|
3252 |
|
|
3253 // But don't delete them or stdin. |
|
|
3254 |
|
|
3255 for (int i = 3; i < curr_len; i++) |
|
3340
|
3256 list(i) = octave_stream (); |
|
2117
|
3257 } |
|
|
3258 |
|
|
3259 string_vector |
|
|
3260 octave_stream_list::do_get_info (int fid) const |
|
|
3261 { |
|
|
3262 string_vector retval; |
|
|
3263 |
|
3340
|
3264 octave_stream os = do_lookup (fid); |
|
2117
|
3265 |
|
3341
|
3266 if (os.is_valid ()) |
|
2117
|
3267 { |
|
|
3268 retval.resize (3); |
|
|
3269 |
|
3340
|
3270 retval(0) = os.name (); |
|
|
3271 retval(1) = octave_stream::mode_as_string (os.mode ()); |
|
|
3272 retval(2) = oct_mach_info::float_format_as_string (os.float_format ()); |
|
2117
|
3273 } |
|
|
3274 else |
|
3341
|
3275 ::error ("invalid file id = %d", fid); |
|
2117
|
3276 |
|
|
3277 return retval; |
|
|
3278 } |
|
|
3279 |
|
|
3280 string_vector |
|
|
3281 octave_stream_list::do_get_info (const octave_value& fid) const |
|
|
3282 { |
|
|
3283 string_vector retval; |
|
|
3284 |
|
|
3285 int conv_err = 0; |
|
|
3286 |
|
|
3287 int int_fid = convert_to_valid_int (fid, conv_err); |
|
|
3288 |
|
|
3289 if (! conv_err) |
|
|
3290 retval = do_get_info (int_fid); |
|
|
3291 else |
|
2915
|
3292 ::error ("file id must be a file object or integer value"); |
|
2117
|
3293 |
|
|
3294 return retval; |
|
|
3295 } |
|
|
3296 |
|
3536
|
3297 std::string |
|
2117
|
3298 octave_stream_list::do_list_open_files (void) const |
|
|
3299 { |
|
3523
|
3300 std::string retval; |
|
2117
|
3301 |
|
4051
|
3302 OSSTREAM buf; |
|
2117
|
3303 |
|
|
3304 buf << "\n" |
|
|
3305 << " number mode arch name\n" |
|
|
3306 << " ------ ---- ---- ----\n"; |
|
|
3307 |
|
|
3308 for (int i = 0; i < curr_len; i++) |
|
|
3309 { |
|
3340
|
3310 octave_stream os = list(i); |
|
2117
|
3311 |
|
4326
|
3312 buf << " " |
|
|
3313 << std::setiosflags (std::ios::right) |
|
|
3314 << std::setw (4) << i << " " |
|
|
3315 << std::setiosflags (std::ios::left) |
|
|
3316 << std::setw (3) |
|
|
3317 << octave_stream::mode_as_string (os.mode ()) |
|
|
3318 << " " |
|
|
3319 << std::setw (9) |
|
|
3320 << oct_mach_info::float_format_as_string (os.float_format ()) |
|
|
3321 << " " |
|
|
3322 << os.name () << "\n"; |
|
2117
|
3323 } |
|
|
3324 |
|
4051
|
3325 buf << "\n" << OSSTREAM_ENDS; |
|
|
3326 |
|
|
3327 retval = OSSTREAM_STR (buf); |
|
|
3328 |
|
|
3329 OSSTREAM_FREEZE (buf); |
|
2117
|
3330 |
|
|
3331 return retval; |
|
|
3332 } |
|
|
3333 |
|
|
3334 octave_value |
|
|
3335 octave_stream_list::do_open_file_numbers (void) const |
|
|
3336 { |
|
|
3337 Matrix retval (1, curr_len, 0.0); |
|
|
3338 |
|
|
3339 int num_open = 0; |
|
|
3340 |
|
|
3341 // Skip stdin, stdout, and stderr. |
|
|
3342 |
|
|
3343 for (int i = 3; i < curr_len; i++) |
|
|
3344 { |
|
3340
|
3345 if (list(i)) |
|
2117
|
3346 retval (0, num_open++) = i; |
|
|
3347 } |
|
|
3348 |
|
|
3349 retval.resize ((num_open > 0), num_open); |
|
|
3350 |
|
|
3351 return retval; |
|
|
3352 } |
|
|
3353 |
|
|
3354 int |
|
2609
|
3355 octave_stream_list::do_get_file_number (const octave_value& fid) const |
|
2117
|
3356 { |
|
|
3357 int retval = -1; |
|
|
3358 |
|
|
3359 if (fid.is_string ()) |
|
|
3360 { |
|
3523
|
3361 std::string nm = fid.string_value (); |
|
2117
|
3362 |
|
3531
|
3363 // stdin (std::cin), stdout (std::cout), and stderr (std::cerr) |
|
|
3364 // are unnamed. |
|
2117
|
3365 |
|
|
3366 for (int i = 3; i < curr_len; i++) |
|
|
3367 { |
|
3340
|
3368 octave_stream os = list(i); |
|
|
3369 |
|
|
3370 if (os && os.name () == nm) |
|
2117
|
3371 { |
|
|
3372 retval = i; |
|
|
3373 break; |
|
|
3374 } |
|
|
3375 } |
|
|
3376 } |
|
|
3377 else |
|
|
3378 { |
|
|
3379 int conv_err = 0; |
|
|
3380 |
|
|
3381 int int_fid = convert_to_valid_int (fid, conv_err); |
|
|
3382 |
|
|
3383 if (conv_err) |
|
3523
|
3384 ::error ("file id must be a file object, std::string, or integer value"); |
|
2117
|
3385 else |
|
|
3386 retval = int_fid; |
|
|
3387 } |
|
|
3388 |
|
|
3389 return retval; |
|
|
3390 } |
|
|
3391 |
|
|
3392 /* |
|
|
3393 ;;; Local Variables: *** |
|
|
3394 ;;; mode: C++ *** |
|
|
3395 ;;; End: *** |
|
|
3396 */ |
