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b6fe0bb8 | 1 | /* Various declarations for language-independent pretty-print subroutines. |
cbe34bb5 | 2 | Copyright (C) 2003-2017 Free Software Foundation, Inc. |
b6fe0bb8 GDR |
3 | Contributed by Gabriel Dos Reis <gdr@integrable-solutions.net> |
4 | ||
5 | This file is part of GCC. | |
6 | ||
7 | GCC is free software; you can redistribute it and/or modify it under | |
8 | the terms of the GNU General Public License as published by the Free | |
9dcd6f09 | 9 | Software Foundation; either version 3, or (at your option) any later |
b6fe0bb8 GDR |
10 | version. |
11 | ||
12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
13 | 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 | |
9dcd6f09 NC |
18 | along with GCC; see the file COPYING3. If not see |
19 | <http://www.gnu.org/licenses/>. */ | |
b6fe0bb8 GDR |
20 | |
21 | #include "config.h" | |
b6fe0bb8 GDR |
22 | #include "system.h" |
23 | #include "coretypes.h" | |
a668adb2 | 24 | #include "intl.h" |
b6fe0bb8 | 25 | #include "pretty-print.h" |
4b84d650 | 26 | #include "diagnostic-color.h" |
4ccab56d | 27 | #include "selftest.h" |
a3af5087 JM |
28 | |
29 | #if HAVE_ICONV | |
30 | #include <iconv.h> | |
31 | #endif | |
b6fe0bb8 | 32 | |
db0d1bae LH |
33 | #ifdef __MINGW32__ |
34 | ||
35 | /* Replacement for fputs() that handles ANSI escape codes on Windows NT. | |
36 | Contributed by: Liu Hao (lh_mouse at 126 dot com) | |
37 | ||
38 | XXX: This file is compiled into libcommon.a that will be self-contained. | |
39 | It looks like that these functions can be put nowhere else. */ | |
40 | ||
41 | #include <io.h> | |
42 | #define WIN32_LEAN_AND_MEAN 1 | |
43 | #include <windows.h> | |
44 | ||
45 | /* Write all bytes in [s,s+n) into the specified stream. | |
46 | Errors are ignored. */ | |
47 | static void | |
48 | write_all (HANDLE h, const char *s, size_t n) | |
49 | { | |
50 | size_t rem = n; | |
51 | DWORD step; | |
52 | ||
53 | while (rem != 0) | |
54 | { | |
55 | if (rem <= UINT_MAX) | |
56 | step = rem; | |
57 | else | |
58 | step = UINT_MAX; | |
59 | if (!WriteFile (h, s + n - rem, step, &step, NULL)) | |
60 | break; | |
61 | rem -= step; | |
62 | } | |
63 | } | |
64 | ||
65 | /* Find the beginning of an escape sequence. | |
66 | There are two cases: | |
67 | 1. If the sequence begins with an ESC character (0x1B) and a second | |
68 | character X in [0x40,0x5F], returns X and stores a pointer to | |
69 | the third character into *head. | |
70 | 2. If the sequence begins with a character X in [0x80,0x9F], returns | |
71 | (X-0x40) and stores a pointer to the second character into *head. | |
72 | Stores the number of ESC character(s) in *prefix_len. | |
73 | Returns 0 if no such sequence can be found. */ | |
74 | static int | |
75 | find_esc_head (int *prefix_len, const char **head, const char *str) | |
76 | { | |
77 | int c; | |
78 | const char *r = str; | |
79 | int escaped = 0; | |
80 | ||
81 | for (;;) | |
82 | { | |
83 | c = (unsigned char) *r; | |
84 | if (c == 0) | |
85 | { | |
86 | /* Not found. */ | |
87 | return 0; | |
88 | } | |
89 | if (escaped && 0x40 <= c && c <= 0x5F) | |
90 | { | |
91 | /* Found (case 1). */ | |
92 | *prefix_len = 2; | |
93 | *head = r + 1; | |
94 | return c; | |
95 | } | |
96 | if (0x80 <= c && c <= 0x9F) | |
97 | { | |
98 | /* Found (case 2). */ | |
99 | *prefix_len = 1; | |
100 | *head = r + 1; | |
101 | return c - 0x40; | |
102 | } | |
103 | ++r; | |
104 | escaped = c == 0x1B; | |
105 | } | |
106 | } | |
107 | ||
108 | /* Find the terminator of an escape sequence. | |
109 | str should be the value stored in *head by a previous successful | |
110 | call to find_esc_head(). | |
111 | Returns 0 if no such sequence can be found. */ | |
112 | static int | |
113 | find_esc_terminator (const char **term, const char *str) | |
114 | { | |
115 | int c; | |
116 | const char *r = str; | |
117 | ||
118 | for (;;) | |
119 | { | |
120 | c = (unsigned char) *r; | |
121 | if (c == 0) | |
122 | { | |
123 | /* Not found. */ | |
124 | return 0; | |
125 | } | |
126 | if (0x40 <= c && c <= 0x7E) | |
127 | { | |
128 | /* Found. */ | |
129 | *term = r; | |
130 | return c; | |
131 | } | |
132 | ++r; | |
133 | } | |
134 | } | |
135 | ||
136 | /* Handle a sequence of codes. Sequences that are invalid, reserved, | |
137 | unrecognized or unimplemented are ignored silently. | |
138 | There isn't much we can do because of lameness of Windows consoles. */ | |
139 | static void | |
140 | eat_esc_sequence (HANDLE h, int esc_code, | |
141 | const char *esc_head, const char *esc_term) | |
142 | { | |
143 | /* Numbers in an escape sequence cannot be negative, because | |
144 | a minus sign in the middle of it would have terminated it. */ | |
145 | long n1, n2; | |
146 | char *eptr, *delim; | |
147 | CONSOLE_SCREEN_BUFFER_INFO sb; | |
148 | COORD cr; | |
149 | /* ED and EL parameters. */ | |
150 | DWORD cnt, step; | |
151 | long rows; | |
152 | /* SGR parameters. */ | |
153 | WORD attrib_add, attrib_rm; | |
154 | const char *param; | |
155 | ||
156 | switch (MAKEWORD (esc_code, *esc_term)) | |
157 | { | |
158 | /* ESC [ n1 'A' | |
159 | Move the cursor up by n1 characters. */ | |
160 | case MAKEWORD ('[', 'A'): | |
161 | if (esc_head == esc_term) | |
162 | n1 = 1; | |
163 | else | |
164 | { | |
165 | n1 = strtol (esc_head, &eptr, 10); | |
166 | if (eptr != esc_term) | |
167 | break; | |
168 | } | |
169 | ||
170 | if (GetConsoleScreenBufferInfo (h, &sb)) | |
171 | { | |
172 | cr = sb.dwCursorPosition; | |
173 | /* Stop at the topmost boundary. */ | |
174 | if (cr.Y > n1) | |
175 | cr.Y -= n1; | |
176 | else | |
177 | cr.Y = 0; | |
178 | SetConsoleCursorPosition (h, cr); | |
179 | } | |
180 | break; | |
181 | ||
182 | /* ESC [ n1 'B' | |
183 | Move the cursor down by n1 characters. */ | |
184 | case MAKEWORD ('[', 'B'): | |
185 | if (esc_head == esc_term) | |
186 | n1 = 1; | |
187 | else | |
188 | { | |
189 | n1 = strtol (esc_head, &eptr, 10); | |
190 | if (eptr != esc_term) | |
191 | break; | |
192 | } | |
193 | ||
194 | if (GetConsoleScreenBufferInfo (h, &sb)) | |
195 | { | |
196 | cr = sb.dwCursorPosition; | |
197 | /* Stop at the bottommost boundary. */ | |
198 | if (sb.dwSize.Y - cr.Y > n1) | |
199 | cr.Y += n1; | |
200 | else | |
201 | cr.Y = sb.dwSize.Y; | |
202 | SetConsoleCursorPosition (h, cr); | |
203 | } | |
204 | break; | |
205 | ||
206 | /* ESC [ n1 'C' | |
207 | Move the cursor right by n1 characters. */ | |
208 | case MAKEWORD ('[', 'C'): | |
209 | if (esc_head == esc_term) | |
210 | n1 = 1; | |
211 | else | |
212 | { | |
213 | n1 = strtol (esc_head, &eptr, 10); | |
214 | if (eptr != esc_term) | |
215 | break; | |
216 | } | |
217 | ||
218 | if (GetConsoleScreenBufferInfo (h, &sb)) | |
219 | { | |
220 | cr = sb.dwCursorPosition; | |
221 | /* Stop at the rightmost boundary. */ | |
222 | if (sb.dwSize.X - cr.X > n1) | |
223 | cr.X += n1; | |
224 | else | |
225 | cr.X = sb.dwSize.X; | |
226 | SetConsoleCursorPosition (h, cr); | |
227 | } | |
228 | break; | |
229 | ||
230 | /* ESC [ n1 'D' | |
231 | Move the cursor left by n1 characters. */ | |
232 | case MAKEWORD ('[', 'D'): | |
233 | if (esc_head == esc_term) | |
234 | n1 = 1; | |
235 | else | |
236 | { | |
237 | n1 = strtol (esc_head, &eptr, 10); | |
238 | if (eptr != esc_term) | |
239 | break; | |
240 | } | |
241 | ||
242 | if (GetConsoleScreenBufferInfo (h, &sb)) | |
243 | { | |
244 | cr = sb.dwCursorPosition; | |
245 | /* Stop at the leftmost boundary. */ | |
246 | if (cr.X > n1) | |
247 | cr.X -= n1; | |
248 | else | |
249 | cr.X = 0; | |
250 | SetConsoleCursorPosition (h, cr); | |
251 | } | |
252 | break; | |
253 | ||
254 | /* ESC [ n1 'E' | |
255 | Move the cursor to the beginning of the n1-th line downwards. */ | |
256 | case MAKEWORD ('[', 'E'): | |
257 | if (esc_head == esc_term) | |
258 | n1 = 1; | |
259 | else | |
260 | { | |
261 | n1 = strtol (esc_head, &eptr, 10); | |
262 | if (eptr != esc_term) | |
263 | break; | |
264 | } | |
265 | ||
266 | if (GetConsoleScreenBufferInfo (h, &sb)) | |
267 | { | |
268 | cr = sb.dwCursorPosition; | |
269 | cr.X = 0; | |
270 | /* Stop at the bottommost boundary. */ | |
271 | if (sb.dwSize.Y - cr.Y > n1) | |
272 | cr.Y += n1; | |
273 | else | |
274 | cr.Y = sb.dwSize.Y; | |
275 | SetConsoleCursorPosition (h, cr); | |
276 | } | |
277 | break; | |
278 | ||
279 | /* ESC [ n1 'F' | |
280 | Move the cursor to the beginning of the n1-th line upwards. */ | |
281 | case MAKEWORD ('[', 'F'): | |
282 | if (esc_head == esc_term) | |
283 | n1 = 1; | |
284 | else | |
285 | { | |
286 | n1 = strtol (esc_head, &eptr, 10); | |
287 | if (eptr != esc_term) | |
288 | break; | |
289 | } | |
290 | ||
291 | if (GetConsoleScreenBufferInfo (h, &sb)) | |
292 | { | |
293 | cr = sb.dwCursorPosition; | |
294 | cr.X = 0; | |
295 | /* Stop at the topmost boundary. */ | |
296 | if (cr.Y > n1) | |
297 | cr.Y -= n1; | |
298 | else | |
299 | cr.Y = 0; | |
300 | SetConsoleCursorPosition (h, cr); | |
301 | } | |
302 | break; | |
303 | ||
304 | /* ESC [ n1 'G' | |
305 | Move the cursor to the (1-based) n1-th column. */ | |
306 | case MAKEWORD ('[', 'G'): | |
307 | if (esc_head == esc_term) | |
308 | n1 = 1; | |
309 | else | |
310 | { | |
311 | n1 = strtol (esc_head, &eptr, 10); | |
312 | if (eptr != esc_term) | |
313 | break; | |
314 | } | |
315 | ||
316 | if (GetConsoleScreenBufferInfo (h, &sb)) | |
317 | { | |
318 | cr = sb.dwCursorPosition; | |
319 | n1 -= 1; | |
320 | /* Stop at the leftmost or rightmost boundary. */ | |
321 | if (n1 < 0) | |
322 | cr.X = 0; | |
323 | else if (n1 > sb.dwSize.X) | |
324 | cr.X = sb.dwSize.X; | |
325 | else | |
326 | cr.X = n1; | |
327 | SetConsoleCursorPosition (h, cr); | |
328 | } | |
329 | break; | |
330 | ||
331 | /* ESC [ n1 ';' n2 'H' | |
332 | ESC [ n1 ';' n2 'f' | |
333 | Move the cursor to the (1-based) n1-th row and | |
334 | (also 1-based) n2-th column. */ | |
335 | case MAKEWORD ('[', 'H'): | |
336 | case MAKEWORD ('[', 'f'): | |
337 | if (esc_head == esc_term) | |
338 | { | |
339 | /* Both parameters are omitted and set to 1 by default. */ | |
340 | n1 = 1; | |
341 | n2 = 1; | |
342 | } | |
343 | else if (!(delim = (char *) memchr (esc_head, ';', | |
344 | esc_term - esc_head))) | |
345 | { | |
346 | /* Only the first parameter is given. The second one is | |
347 | set to 1 by default. */ | |
348 | n1 = strtol (esc_head, &eptr, 10); | |
349 | if (eptr != esc_term) | |
350 | break; | |
351 | n2 = 1; | |
352 | } | |
353 | else | |
354 | { | |
355 | /* Both parameters are given. The first one shall be | |
356 | terminated by the semicolon. */ | |
357 | n1 = strtol (esc_head, &eptr, 10); | |
358 | if (eptr != delim) | |
359 | break; | |
360 | n2 = strtol (delim + 1, &eptr, 10); | |
361 | if (eptr != esc_term) | |
362 | break; | |
363 | } | |
364 | ||
365 | if (GetConsoleScreenBufferInfo (h, &sb)) | |
366 | { | |
367 | cr = sb.dwCursorPosition; | |
368 | n1 -= 1; | |
369 | n2 -= 1; | |
370 | /* The cursor position shall be relative to the view coord of | |
371 | the console window, which is usually smaller than the actual | |
372 | buffer. FWIW, the 'appropriate' solution will be shrinking | |
373 | the buffer to match the size of the console window, | |
374 | destroying scrollback in the process. */ | |
375 | n1 += sb.srWindow.Top; | |
376 | n2 += sb.srWindow.Left; | |
377 | /* Stop at the topmost or bottommost boundary. */ | |
378 | if (n1 < 0) | |
379 | cr.Y = 0; | |
380 | else if (n1 > sb.dwSize.Y) | |
381 | cr.Y = sb.dwSize.Y; | |
382 | else | |
383 | cr.Y = n1; | |
384 | /* Stop at the leftmost or rightmost boundary. */ | |
385 | if (n2 < 0) | |
386 | cr.X = 0; | |
387 | else if (n2 > sb.dwSize.X) | |
388 | cr.X = sb.dwSize.X; | |
389 | else | |
390 | cr.X = n2; | |
391 | SetConsoleCursorPosition (h, cr); | |
392 | } | |
393 | break; | |
394 | ||
395 | /* ESC [ n1 'J' | |
396 | Erase display. */ | |
397 | case MAKEWORD ('[', 'J'): | |
398 | if (esc_head == esc_term) | |
399 | /* This is one of the very few codes whose parameters have | |
400 | a default value of zero. */ | |
401 | n1 = 0; | |
402 | else | |
403 | { | |
404 | n1 = strtol (esc_head, &eptr, 10); | |
405 | if (eptr != esc_term) | |
406 | break; | |
407 | } | |
408 | ||
409 | if (GetConsoleScreenBufferInfo (h, &sb)) | |
410 | { | |
411 | /* The cursor is not necessarily in the console window, which | |
412 | makes the behavior of this code harder to define. */ | |
413 | switch (n1) | |
414 | { | |
415 | case 0: | |
416 | /* If the cursor is in or above the window, erase from | |
417 | it to the bottom of the window; otherwise, do nothing. */ | |
418 | cr = sb.dwCursorPosition; | |
419 | cnt = sb.dwSize.X - sb.dwCursorPosition.X; | |
420 | rows = sb.srWindow.Bottom - sb.dwCursorPosition.Y; | |
421 | break; | |
422 | case 1: | |
423 | /* If the cursor is in or under the window, erase from | |
424 | it to the top of the window; otherwise, do nothing. */ | |
425 | cr.X = 0; | |
426 | cr.Y = sb.srWindow.Top; | |
427 | cnt = sb.dwCursorPosition.X + 1; | |
428 | rows = sb.dwCursorPosition.Y - sb.srWindow.Top; | |
429 | break; | |
430 | case 2: | |
431 | /* Erase the entire window. */ | |
432 | cr.X = sb.srWindow.Left; | |
433 | cr.Y = sb.srWindow.Top; | |
434 | cnt = 0; | |
435 | rows = sb.srWindow.Bottom - sb.srWindow.Top + 1; | |
436 | break; | |
437 | default: | |
438 | /* Erase the entire buffer. */ | |
439 | cr.X = 0; | |
440 | cr.Y = 0; | |
441 | cnt = 0; | |
442 | rows = sb.dwSize.Y; | |
443 | break; | |
444 | } | |
445 | if (rows < 0) | |
446 | break; | |
447 | cnt += rows * sb.dwSize.X; | |
448 | FillConsoleOutputCharacterW (h, L' ', cnt, cr, &step); | |
449 | FillConsoleOutputAttribute (h, sb.wAttributes, cnt, cr, &step); | |
450 | } | |
451 | break; | |
452 | ||
453 | /* ESC [ n1 'K' | |
454 | Erase line. */ | |
455 | case MAKEWORD ('[', 'K'): | |
456 | if (esc_head == esc_term) | |
457 | /* This is one of the very few codes whose parameters have | |
458 | a default value of zero. */ | |
459 | n1 = 0; | |
460 | else | |
461 | { | |
462 | n1 = strtol (esc_head, &eptr, 10); | |
463 | if (eptr != esc_term) | |
464 | break; | |
465 | } | |
466 | ||
467 | if (GetConsoleScreenBufferInfo (h, &sb)) | |
468 | { | |
469 | switch (n1) | |
470 | { | |
471 | case 0: | |
472 | /* Erase from the cursor to the end. */ | |
473 | cr = sb.dwCursorPosition; | |
474 | cnt = sb.dwSize.X - sb.dwCursorPosition.X; | |
475 | break; | |
476 | case 1: | |
477 | /* Erase from the cursor to the beginning. */ | |
478 | cr = sb.dwCursorPosition; | |
479 | cr.X = 0; | |
480 | cnt = sb.dwCursorPosition.X + 1; | |
481 | break; | |
482 | default: | |
483 | /* Erase the entire line. */ | |
484 | cr = sb.dwCursorPosition; | |
485 | cr.X = 0; | |
486 | cnt = sb.dwSize.X; | |
487 | break; | |
488 | } | |
489 | FillConsoleOutputCharacterW (h, L' ', cnt, cr, &step); | |
490 | FillConsoleOutputAttribute (h, sb.wAttributes, cnt, cr, &step); | |
491 | } | |
492 | break; | |
493 | ||
494 | /* ESC [ n1 ';' n2 'm' | |
495 | Set SGR parameters. Zero or more parameters will follow. */ | |
496 | case MAKEWORD ('[', 'm'): | |
497 | attrib_add = 0; | |
498 | attrib_rm = 0; | |
499 | if (esc_head == esc_term) | |
500 | { | |
501 | /* When no parameter is given, reset the console. */ | |
502 | attrib_add |= (FOREGROUND_RED | FOREGROUND_GREEN | |
503 | | FOREGROUND_BLUE); | |
504 | attrib_rm = -1; /* Removes everything. */ | |
505 | goto sgr_set_it; | |
506 | } | |
507 | param = esc_head; | |
508 | do | |
509 | { | |
510 | /* Parse a parameter. */ | |
511 | n1 = strtol (param, &eptr, 10); | |
512 | if (*eptr != ';' && eptr != esc_term) | |
513 | goto sgr_set_it; | |
514 | ||
515 | switch (n1) | |
516 | { | |
517 | case 0: | |
518 | /* Reset. */ | |
519 | attrib_add |= (FOREGROUND_RED | FOREGROUND_GREEN | |
520 | | FOREGROUND_BLUE); | |
521 | attrib_rm = -1; /* Removes everything. */ | |
522 | break; | |
523 | case 1: | |
524 | /* Bold. */ | |
525 | attrib_add |= FOREGROUND_INTENSITY; | |
526 | break; | |
527 | case 4: | |
528 | /* Underline. */ | |
529 | attrib_add |= COMMON_LVB_UNDERSCORE; | |
530 | break; | |
531 | case 5: | |
532 | /* Blink. */ | |
533 | /* XXX: It is not BLINKING at all! */ | |
534 | attrib_add |= BACKGROUND_INTENSITY; | |
535 | break; | |
536 | case 7: | |
537 | /* Reverse. */ | |
538 | attrib_add |= COMMON_LVB_REVERSE_VIDEO; | |
539 | break; | |
540 | case 22: | |
541 | /* No bold. */ | |
542 | attrib_add &= ~FOREGROUND_INTENSITY; | |
543 | attrib_rm |= FOREGROUND_INTENSITY; | |
544 | break; | |
545 | case 24: | |
546 | /* No underline. */ | |
547 | attrib_add &= ~COMMON_LVB_UNDERSCORE; | |
548 | attrib_rm |= COMMON_LVB_UNDERSCORE; | |
549 | break; | |
550 | case 25: | |
551 | /* No blink. */ | |
552 | /* XXX: It is not BLINKING at all! */ | |
553 | attrib_add &= ~BACKGROUND_INTENSITY; | |
554 | attrib_rm |= BACKGROUND_INTENSITY; | |
555 | break; | |
556 | case 27: | |
557 | /* No reverse. */ | |
558 | attrib_add &= ~COMMON_LVB_REVERSE_VIDEO; | |
559 | attrib_rm |= COMMON_LVB_REVERSE_VIDEO; | |
560 | break; | |
561 | case 30: | |
562 | case 31: | |
563 | case 32: | |
564 | case 33: | |
565 | case 34: | |
566 | case 35: | |
567 | case 36: | |
568 | case 37: | |
569 | /* Foreground color. */ | |
570 | attrib_add &= ~(FOREGROUND_RED | FOREGROUND_GREEN | |
571 | | FOREGROUND_BLUE); | |
572 | n1 -= 30; | |
573 | if (n1 & 1) | |
574 | attrib_add |= FOREGROUND_RED; | |
575 | if (n1 & 2) | |
576 | attrib_add |= FOREGROUND_GREEN; | |
577 | if (n1 & 4) | |
578 | attrib_add |= FOREGROUND_BLUE; | |
579 | attrib_rm |= (FOREGROUND_RED | FOREGROUND_GREEN | |
580 | | FOREGROUND_BLUE); | |
581 | break; | |
582 | case 38: | |
583 | /* Reserved for extended foreground color. | |
584 | Don't know how to handle parameters remaining. | |
585 | Bail out. */ | |
586 | goto sgr_set_it; | |
587 | case 39: | |
588 | /* Reset foreground color. */ | |
589 | /* Set to grey. */ | |
590 | attrib_add |= (FOREGROUND_RED | FOREGROUND_GREEN | |
591 | | FOREGROUND_BLUE); | |
592 | attrib_rm |= (FOREGROUND_RED | FOREGROUND_GREEN | |
593 | | FOREGROUND_BLUE); | |
594 | break; | |
595 | case 40: | |
596 | case 41: | |
597 | case 42: | |
598 | case 43: | |
599 | case 44: | |
600 | case 45: | |
601 | case 46: | |
602 | case 47: | |
603 | /* Background color. */ | |
604 | attrib_add &= ~(BACKGROUND_RED | BACKGROUND_GREEN | |
605 | | BACKGROUND_BLUE); | |
606 | n1 -= 40; | |
607 | if (n1 & 1) | |
608 | attrib_add |= BACKGROUND_RED; | |
609 | if (n1 & 2) | |
610 | attrib_add |= BACKGROUND_GREEN; | |
611 | if (n1 & 4) | |
612 | attrib_add |= BACKGROUND_BLUE; | |
613 | attrib_rm |= (BACKGROUND_RED | BACKGROUND_GREEN | |
614 | | BACKGROUND_BLUE); | |
615 | break; | |
616 | case 48: | |
617 | /* Reserved for extended background color. | |
618 | Don't know how to handle parameters remaining. | |
619 | Bail out. */ | |
620 | goto sgr_set_it; | |
621 | case 49: | |
622 | /* Reset background color. */ | |
623 | /* Set to black. */ | |
624 | attrib_add &= ~(BACKGROUND_RED | BACKGROUND_GREEN | |
625 | | BACKGROUND_BLUE); | |
626 | attrib_rm |= (BACKGROUND_RED | BACKGROUND_GREEN | |
627 | | BACKGROUND_BLUE); | |
628 | break; | |
629 | } | |
630 | ||
631 | /* Prepare the next parameter. */ | |
632 | param = eptr + 1; | |
633 | } | |
634 | while (param != esc_term); | |
635 | ||
636 | sgr_set_it: | |
637 | /* 0xFFFF removes everything. If it is not the case, | |
638 | care must be taken to preserve old attributes. */ | |
639 | if (attrib_rm != 0xFFFF && GetConsoleScreenBufferInfo (h, &sb)) | |
640 | { | |
641 | attrib_add |= sb.wAttributes & ~attrib_rm; | |
642 | } | |
643 | SetConsoleTextAttribute (h, attrib_add); | |
644 | break; | |
645 | } | |
646 | } | |
647 | ||
648 | int | |
649 | mingw_ansi_fputs (const char *str, FILE *fp) | |
650 | { | |
651 | const char *read = str; | |
652 | HANDLE h; | |
653 | DWORD mode; | |
654 | int esc_code, prefix_len; | |
655 | const char *esc_head, *esc_term; | |
656 | ||
657 | h = (HANDLE) _get_osfhandle (_fileno (fp)); | |
658 | if (h == INVALID_HANDLE_VALUE) | |
659 | return EOF; | |
660 | ||
661 | /* Don't mess up stdio functions with Windows APIs. */ | |
662 | fflush (fp); | |
663 | ||
664 | if (GetConsoleMode (h, &mode)) | |
665 | /* If it is a console, translate ANSI escape codes as needed. */ | |
666 | for (;;) | |
667 | { | |
668 | if ((esc_code = find_esc_head (&prefix_len, &esc_head, read)) == 0) | |
669 | { | |
670 | /* Write all remaining characters, then exit. */ | |
671 | write_all (h, read, strlen (read)); | |
672 | break; | |
673 | } | |
674 | if (find_esc_terminator (&esc_term, esc_head) == 0) | |
675 | /* Ignore incomplete escape sequences at the moment. | |
676 | FIXME: The escape state shall be cached for further calls | |
677 | to this function. */ | |
678 | break; | |
679 | write_all (h, read, esc_head - prefix_len - read); | |
680 | eat_esc_sequence (h, esc_code, esc_head, esc_term); | |
681 | read = esc_term + 1; | |
682 | } | |
683 | else | |
684 | /* If it is not a console, write everything as-is. */ | |
685 | write_all (h, read, strlen (read)); | |
686 | ||
687 | _close ((intptr_t) h); | |
688 | return 1; | |
689 | } | |
690 | ||
691 | #endif /* __MINGW32__ */ | |
692 | ||
3f0177e7 MS |
693 | static void pp_quoted_string (pretty_printer *, const char *, size_t = -1); |
694 | ||
f79520bb | 695 | /* Overwrite the given location/range within this text_info's rich_location. |
8a645150 DM |
696 | For use e.g. when implementing "+" in client format decoders. */ |
697 | ||
698 | void | |
f79520bb | 699 | text_info::set_location (unsigned int idx, location_t loc, bool show_caret_p) |
8a645150 DM |
700 | { |
701 | gcc_checking_assert (m_richloc); | |
f79520bb | 702 | m_richloc->set_range (line_table, idx, loc, show_caret_p); |
8a645150 DM |
703 | } |
704 | ||
705 | location_t | |
706 | text_info::get_location (unsigned int index_of_location) const | |
707 | { | |
708 | gcc_checking_assert (m_richloc); | |
709 | ||
710 | if (index_of_location == 0) | |
711 | return m_richloc->get_loc (); | |
712 | else | |
713 | return UNKNOWN_LOCATION; | |
714 | } | |
715 | ||
da6ca2b5 GDR |
716 | // Default construct an output buffer. |
717 | ||
718 | output_buffer::output_buffer () | |
719 | : formatted_obstack (), | |
720 | chunk_obstack (), | |
721 | obstack (&formatted_obstack), | |
722 | cur_chunk_array (), | |
723 | stream (stderr), | |
724 | line_length (), | |
48749dbc MLI |
725 | digit_buffer (), |
726 | flush_p (true) | |
da6ca2b5 GDR |
727 | { |
728 | obstack_init (&formatted_obstack); | |
729 | obstack_init (&chunk_obstack); | |
730 | } | |
731 | ||
025311c4 GDR |
732 | // Release resources owned by an output buffer at the end of lifetime. |
733 | ||
734 | output_buffer::~output_buffer () | |
735 | { | |
65f5c720 RB |
736 | obstack_free (&chunk_obstack, NULL); |
737 | obstack_free (&formatted_obstack, NULL); | |
025311c4 GDR |
738 | } |
739 | ||
b6fe0bb8 GDR |
740 | |
741 | /* Format an integer given by va_arg (ARG, type-specifier T) where | |
742 | type-specifier is a precision modifier as indicated by PREC. F is | |
743 | a string used to construct the appropriate format-specifier. */ | |
744 | #define pp_integer_with_precision(PP, ARG, PREC, T, F) \ | |
745 | do \ | |
746 | switch (PREC) \ | |
747 | { \ | |
748 | case 0: \ | |
749 | pp_scalar (PP, "%" F, va_arg (ARG, T)); \ | |
750 | break; \ | |
751 | \ | |
752 | case 1: \ | |
753 | pp_scalar (PP, "%l" F, va_arg (ARG, long T)); \ | |
754 | break; \ | |
755 | \ | |
756 | case 2: \ | |
2a157700 | 757 | pp_scalar (PP, "%" HOST_LONG_LONG_FORMAT F, va_arg (ARG, long long T)); \ |
b6fe0bb8 GDR |
758 | break; \ |
759 | \ | |
760 | default: \ | |
761 | break; \ | |
762 | } \ | |
763 | while (0) | |
764 | ||
765 | ||
766 | /* Subroutine of pp_set_maximum_length. Set up PRETTY-PRINTER's | |
767 | internal maximum characters per line. */ | |
768 | static void | |
769 | pp_set_real_maximum_length (pretty_printer *pp) | |
770 | { | |
771 | /* If we're told not to wrap lines then do the obvious thing. In case | |
772 | we'll emit prefix only once per message, it is appropriate | |
773 | not to increase unnecessarily the line-length cut-off. */ | |
774 | if (!pp_is_wrapping_line (pp) | |
775 | || pp_prefixing_rule (pp) == DIAGNOSTICS_SHOW_PREFIX_ONCE | |
776 | || pp_prefixing_rule (pp) == DIAGNOSTICS_SHOW_PREFIX_NEVER) | |
777 | pp->maximum_length = pp_line_cutoff (pp); | |
778 | else | |
779 | { | |
780 | int prefix_length = pp->prefix ? strlen (pp->prefix) : 0; | |
781 | /* If the prefix is ridiculously too long, output at least | |
782 | 32 characters. */ | |
783 | if (pp_line_cutoff (pp) - prefix_length < 32) | |
784 | pp->maximum_length = pp_line_cutoff (pp) + 32; | |
785 | else | |
786 | pp->maximum_length = pp_line_cutoff (pp); | |
787 | } | |
788 | } | |
789 | ||
790 | /* Clear PRETTY-PRINTER's output state. */ | |
791 | static inline void | |
792 | pp_clear_state (pretty_printer *pp) | |
793 | { | |
794 | pp->emitted_prefix = false; | |
795 | pp_indentation (pp) = 0; | |
796 | } | |
797 | ||
b6fe0bb8 | 798 | /* Flush the formatted text of PRETTY-PRINTER onto the attached stream. */ |
6de9cd9a | 799 | void |
b6fe0bb8 GDR |
800 | pp_write_text_to_stream (pretty_printer *pp) |
801 | { | |
802 | const char *text = pp_formatted_text (pp); | |
db0d1bae LH |
803 | #ifdef __MINGW32__ |
804 | mingw_ansi_fputs (text, pp_buffer (pp)->stream); | |
805 | #else | |
025311c4 | 806 | fputs (text, pp_buffer (pp)->stream); |
db0d1bae | 807 | #endif |
b6fe0bb8 GDR |
808 | pp_clear_output_area (pp); |
809 | } | |
810 | ||
7eba871a SB |
811 | /* As pp_write_text_to_stream, but for GraphViz label output. |
812 | ||
813 | Flush the formatted text of pretty-printer PP onto the attached stream. | |
814 | Replace characters in PPF that have special meaning in a GraphViz .dot | |
815 | file. | |
816 | ||
817 | This routine is not very fast, but it doesn't have to be as this is only | |
818 | be used by routines dumping intermediate representations in graph form. */ | |
819 | ||
820 | void | |
821 | pp_write_text_as_dot_label_to_stream (pretty_printer *pp, bool for_record) | |
822 | { | |
823 | const char *text = pp_formatted_text (pp); | |
824 | const char *p = text; | |
025311c4 | 825 | FILE *fp = pp_buffer (pp)->stream; |
7eba871a | 826 | |
da3ebf2d | 827 | for (;*p; p++) |
7eba871a | 828 | { |
da3ebf2d | 829 | bool escape_char; |
7eba871a SB |
830 | switch (*p) |
831 | { | |
832 | /* Print newlines as a left-aligned newline. */ | |
833 | case '\n': | |
da3ebf2d TV |
834 | fputs ("\\l", fp); |
835 | escape_char = true; | |
7eba871a SB |
836 | break; |
837 | ||
795391fb | 838 | /* The following characters are only special for record-shape nodes. */ |
7eba871a | 839 | case '|': |
795391fb TV |
840 | case '{': |
841 | case '}': | |
842 | case '<': | |
843 | case '>': | |
844 | case ' ': | |
da3ebf2d | 845 | escape_char = for_record; |
7eba871a SB |
846 | break; |
847 | ||
848 | /* The following characters always have to be escaped | |
849 | for use in labels. */ | |
b3de2446 TV |
850 | case '\\': |
851 | /* There is a bug in some (f.i. 2.36.0) versions of graphiz | |
852 | ( http://www.graphviz.org/mantisbt/view.php?id=2524 ) related to | |
853 | backslash as last char in label. Let's avoid triggering it. */ | |
854 | gcc_assert (*(p + 1) != '\0'); | |
855 | /* Fall through. */ | |
7eba871a | 856 | case '"': |
da3ebf2d TV |
857 | escape_char = true; |
858 | break; | |
859 | ||
7eba871a | 860 | default: |
da3ebf2d | 861 | escape_char = false; |
7eba871a SB |
862 | break; |
863 | } | |
da3ebf2d TV |
864 | |
865 | if (escape_char) | |
866 | fputc ('\\', fp); | |
867 | ||
868 | fputc (*p, fp); | |
7eba871a SB |
869 | } |
870 | ||
871 | pp_clear_output_area (pp); | |
872 | } | |
873 | ||
b6fe0bb8 GDR |
874 | /* Wrap a text delimited by START and END into PRETTY-PRINTER. */ |
875 | static void | |
876 | pp_wrap_text (pretty_printer *pp, const char *start, const char *end) | |
877 | { | |
878 | bool wrapping_line = pp_is_wrapping_line (pp); | |
879 | ||
880 | while (start != end) | |
881 | { | |
882 | /* Dump anything bordered by whitespaces. */ | |
883 | { | |
884 | const char *p = start; | |
885 | while (p != end && !ISBLANK (*p) && *p != '\n') | |
886 | ++p; | |
887 | if (wrapping_line | |
888 | && p - start >= pp_remaining_character_count_for_line (pp)) | |
889 | pp_newline (pp); | |
890 | pp_append_text (pp, start, p); | |
891 | start = p; | |
892 | } | |
893 | ||
894 | if (start != end && ISBLANK (*start)) | |
895 | { | |
896 | pp_space (pp); | |
897 | ++start; | |
898 | } | |
899 | if (start != end && *start == '\n') | |
900 | { | |
901 | pp_newline (pp); | |
902 | ++start; | |
903 | } | |
904 | } | |
905 | } | |
906 | ||
907 | /* Same as pp_wrap_text but wrap text only when in line-wrapping mode. */ | |
908 | static inline void | |
909 | pp_maybe_wrap_text (pretty_printer *pp, const char *start, const char *end) | |
910 | { | |
911 | if (pp_is_wrapping_line (pp)) | |
912 | pp_wrap_text (pp, start, end); | |
913 | else | |
914 | pp_append_text (pp, start, end); | |
915 | } | |
916 | ||
917 | /* Append to the output area of PRETTY-PRINTER a string specified by its | |
918 | STARTing character and LENGTH. */ | |
919 | static inline void | |
920 | pp_append_r (pretty_printer *pp, const char *start, int length) | |
921 | { | |
c4100eae | 922 | output_buffer_append_r (pp_buffer (pp), start, length); |
b6fe0bb8 GDR |
923 | } |
924 | ||
4b780675 GDR |
925 | /* Insert enough spaces into the output area of PRETTY-PRINTER to bring |
926 | the column position to the current indentation level, assuming that a | |
927 | newline has just been written to the buffer. */ | |
928 | void | |
b066401f | 929 | pp_indent (pretty_printer *pp) |
4b780675 GDR |
930 | { |
931 | int n = pp_indentation (pp); | |
932 | int i; | |
933 | ||
934 | for (i = 0; i < n; ++i) | |
935 | pp_space (pp); | |
936 | } | |
937 | ||
39ce81c9 | 938 | /* The following format specifiers are recognized as being client independent: |
b6fe0bb8 GDR |
939 | %d, %i: (signed) integer in base ten. |
940 | %u: unsigned integer in base ten. | |
941 | %o: unsigned integer in base eight. | |
942 | %x: unsigned integer in base sixteen. | |
943 | %ld, %li, %lo, %lu, %lx: long versions of the above. | |
944 | %lld, %lli, %llo, %llu, %llx: long long versions. | |
945 | %wd, %wi, %wo, %wu, %wx: HOST_WIDE_INT versions. | |
946 | %c: character. | |
947 | %s: string. | |
914bc2b9 | 948 | %p: pointer (printed in a host-dependent manner). |
4b84d650 JJ |
949 | %r: if pp_show_color(pp), switch to color identified by const char *. |
950 | %R: if pp_show_color(pp), reset color. | |
b6fe0bb8 | 951 | %m: strerror(text->err_no) - does not consume a value from args_ptr. |
a668adb2 | 952 | %%: '%'. |
ca09cd34 JM |
953 | %<: opening quote. |
954 | %>: closing quote. | |
955 | %': apostrophe (should only be used in untranslated messages; | |
956 | translations should use appropriate punctuation directly). | |
39ce81c9 ZW |
957 | %.*s: a substring the length of which is specified by an argument |
958 | integer. | |
959 | %Ns: likewise, but length specified as constant in the format string. | |
39ce81c9 | 960 | Flag 'q': quote formatted text (must come immediately after '%'). |
975672f3 PK |
961 | %Z: Requires two arguments - array of int, and len. Prints elements |
962 | of the array. | |
39ce81c9 ZW |
963 | |
964 | Arguments can be used sequentially, or through %N$ resp. *N$ | |
965 | notation Nth argument after the format string. If %N$ / *N$ | |
966 | notation is used, it must be used for all arguments, except %m, %%, | |
967 | %<, %> and %', which may not have a number, as they do not consume | |
968 | an argument. When %M$.*N$s is used, M must be N + 1. (This may | |
969 | also be written %M$.*s, provided N is not otherwise used.) The | |
970 | format string must have conversion specifiers with argument numbers | |
971 | 1 up to highest argument; each argument may only be used once. | |
972 | A format string can have at most 30 arguments. */ | |
973 | ||
974 | /* Formatting phases 1 and 2: render TEXT->format_spec plus | |
025311c4 | 975 | TEXT->args_ptr into a series of chunks in pp_buffer (PP)->args[]. |
4ccab56d | 976 | Phase 3 is in pp_output_formatted_text. */ |
39ce81c9 | 977 | |
b6fe0bb8 | 978 | void |
b066401f | 979 | pp_format (pretty_printer *pp, text_info *text) |
b6fe0bb8 | 980 | { |
025311c4 | 981 | output_buffer *buffer = pp_buffer (pp); |
39ce81c9 ZW |
982 | const char *p; |
983 | const char **args; | |
984 | struct chunk_info *new_chunk_array; | |
985 | ||
986 | unsigned int curarg = 0, chunk = 0, argno; | |
987 | pp_wrapping_mode_t old_wrapping_mode; | |
988 | bool any_unnumbered = false, any_numbered = false; | |
989 | const char **formatters[PP_NL_ARGMAX]; | |
990 | ||
991 | /* Allocate a new chunk structure. */ | |
992 | new_chunk_array = XOBNEW (&buffer->chunk_obstack, struct chunk_info); | |
993 | new_chunk_array->prev = buffer->cur_chunk_array; | |
994 | buffer->cur_chunk_array = new_chunk_array; | |
995 | args = new_chunk_array->args; | |
996 | ||
997 | /* Formatting phase 1: split up TEXT->format_spec into chunks in | |
025311c4 | 998 | pp_buffer (PP)->args[]. Even-numbered chunks are to be output |
39ce81c9 ZW |
999 | verbatim, odd-numbered chunks are format specifiers. |
1000 | %m, %%, %<, %>, and %' are replaced with the appropriate text at | |
1001 | this point. */ | |
1002 | ||
1003 | memset (formatters, 0, sizeof formatters); | |
b8698a0f | 1004 | |
39ce81c9 | 1005 | for (p = text->format_spec; *p; ) |
b6fe0bb8 | 1006 | { |
39ce81c9 ZW |
1007 | while (*p != '\0' && *p != '%') |
1008 | { | |
1009 | obstack_1grow (&buffer->chunk_obstack, *p); | |
1010 | p++; | |
1011 | } | |
b6fe0bb8 | 1012 | |
39ce81c9 ZW |
1013 | if (*p == '\0') |
1014 | break; | |
1015 | ||
1016 | switch (*++p) | |
1017 | { | |
1018 | case '\0': | |
1019 | gcc_unreachable (); | |
b8698a0f | 1020 | |
39ce81c9 ZW |
1021 | case '%': |
1022 | obstack_1grow (&buffer->chunk_obstack, '%'); | |
1023 | p++; | |
1024 | continue; | |
b6fe0bb8 | 1025 | |
39ce81c9 | 1026 | case '<': |
4b84d650 JJ |
1027 | { |
1028 | obstack_grow (&buffer->chunk_obstack, | |
1029 | open_quote, strlen (open_quote)); | |
1030 | const char *colorstr | |
1031 | = colorize_start (pp_show_color (pp), "quote"); | |
1032 | obstack_grow (&buffer->chunk_obstack, colorstr, strlen (colorstr)); | |
1033 | p++; | |
1034 | continue; | |
1035 | } | |
39ce81c9 ZW |
1036 | |
1037 | case '>': | |
4b84d650 JJ |
1038 | { |
1039 | const char *colorstr = colorize_stop (pp_show_color (pp)); | |
1040 | obstack_grow (&buffer->chunk_obstack, colorstr, strlen (colorstr)); | |
1041 | } | |
1042 | /* FALLTHRU */ | |
39ce81c9 ZW |
1043 | case '\'': |
1044 | obstack_grow (&buffer->chunk_obstack, | |
241de8a0 | 1045 | close_quote, strlen (close_quote)); |
39ce81c9 ZW |
1046 | p++; |
1047 | continue; | |
1048 | ||
4b84d650 JJ |
1049 | case 'R': |
1050 | { | |
1051 | const char *colorstr = colorize_stop (pp_show_color (pp)); | |
1052 | obstack_grow (&buffer->chunk_obstack, colorstr, | |
1053 | strlen (colorstr)); | |
1054 | p++; | |
1055 | continue; | |
1056 | } | |
1057 | ||
39ce81c9 ZW |
1058 | case 'm': |
1059 | { | |
1060 | const char *errstr = xstrerror (text->err_no); | |
1061 | obstack_grow (&buffer->chunk_obstack, errstr, strlen (errstr)); | |
1062 | } | |
1063 | p++; | |
1064 | continue; | |
1065 | ||
1066 | default: | |
1067 | /* Handled in phase 2. Terminate the plain chunk here. */ | |
1068 | obstack_1grow (&buffer->chunk_obstack, '\0'); | |
1069 | gcc_assert (chunk < PP_NL_ARGMAX * 2); | |
1070 | args[chunk++] = XOBFINISH (&buffer->chunk_obstack, const char *); | |
1071 | break; | |
1072 | } | |
1073 | ||
1074 | if (ISDIGIT (*p)) | |
1075 | { | |
1076 | char *end; | |
1077 | argno = strtoul (p, &end, 10) - 1; | |
1078 | p = end; | |
1079 | gcc_assert (*p == '$'); | |
1080 | p++; | |
1081 | ||
1082 | any_numbered = true; | |
1083 | gcc_assert (!any_unnumbered); | |
1084 | } | |
1085 | else | |
1086 | { | |
1087 | argno = curarg++; | |
1088 | any_unnumbered = true; | |
1089 | gcc_assert (!any_numbered); | |
1090 | } | |
1091 | gcc_assert (argno < PP_NL_ARGMAX); | |
1092 | gcc_assert (!formatters[argno]); | |
1093 | formatters[argno] = &args[chunk]; | |
1094 | do | |
1095 | { | |
1096 | obstack_1grow (&buffer->chunk_obstack, *p); | |
1097 | p++; | |
1098 | } | |
1099 | while (strchr ("qwl+#", p[-1])); | |
1100 | ||
1101 | if (p[-1] == '.') | |
1102 | { | |
1103 | /* We handle '%.Ns' and '%.*s' or '%M$.*N$s' | |
1104 | (where M == N + 1). */ | |
1105 | if (ISDIGIT (*p)) | |
1106 | { | |
1107 | do | |
1108 | { | |
1109 | obstack_1grow (&buffer->chunk_obstack, *p); | |
1110 | p++; | |
1111 | } | |
1112 | while (ISDIGIT (p[-1])); | |
1113 | gcc_assert (p[-1] == 's'); | |
1114 | } | |
1115 | else | |
1116 | { | |
1117 | gcc_assert (*p == '*'); | |
1118 | obstack_1grow (&buffer->chunk_obstack, '*'); | |
1119 | p++; | |
1120 | ||
1121 | if (ISDIGIT (*p)) | |
1122 | { | |
1123 | char *end; | |
1124 | unsigned int argno2 = strtoul (p, &end, 10) - 1; | |
1125 | p = end; | |
1126 | gcc_assert (argno2 == argno - 1); | |
1127 | gcc_assert (!any_unnumbered); | |
1128 | gcc_assert (*p == '$'); | |
1129 | ||
1130 | p++; | |
1131 | formatters[argno2] = formatters[argno]; | |
1132 | } | |
1133 | else | |
1134 | { | |
1135 | gcc_assert (!any_numbered); | |
1136 | formatters[argno+1] = formatters[argno]; | |
1137 | curarg++; | |
1138 | } | |
1139 | gcc_assert (*p == 's'); | |
1140 | obstack_1grow (&buffer->chunk_obstack, 's'); | |
1141 | p++; | |
1142 | } | |
1143 | } | |
1144 | if (*p == '\0') | |
b6fe0bb8 GDR |
1145 | break; |
1146 | ||
39ce81c9 ZW |
1147 | obstack_1grow (&buffer->chunk_obstack, '\0'); |
1148 | gcc_assert (chunk < PP_NL_ARGMAX * 2); | |
1149 | args[chunk++] = XOBFINISH (&buffer->chunk_obstack, const char *); | |
1150 | } | |
1151 | ||
1152 | obstack_1grow (&buffer->chunk_obstack, '\0'); | |
1153 | gcc_assert (chunk < PP_NL_ARGMAX * 2); | |
1154 | args[chunk++] = XOBFINISH (&buffer->chunk_obstack, const char *); | |
1155 | args[chunk] = 0; | |
b8698a0f | 1156 | |
39ce81c9 ZW |
1157 | /* Set output to the argument obstack, and switch line-wrapping and |
1158 | prefixing off. */ | |
1159 | buffer->obstack = &buffer->chunk_obstack; | |
1160 | old_wrapping_mode = pp_set_verbatim_wrapping (pp); | |
1161 | ||
1162 | /* Second phase. Replace each formatter with the formatted text it | |
1163 | corresponds to. */ | |
1164 | ||
1165 | for (argno = 0; formatters[argno]; argno++) | |
1166 | { | |
1167 | int precision = 0; | |
1168 | bool wide = false; | |
1169 | bool plus = false; | |
1170 | bool hash = false; | |
1171 | bool quote = false; | |
1172 | ||
1173 | /* We do not attempt to enforce any ordering on the modifier | |
1174 | characters. */ | |
1175 | ||
1176 | for (p = *formatters[argno];; p++) | |
a668adb2 | 1177 | { |
39ce81c9 ZW |
1178 | switch (*p) |
1179 | { | |
1180 | case 'q': | |
1181 | gcc_assert (!quote); | |
1182 | quote = true; | |
1183 | continue; | |
1184 | ||
1185 | case '+': | |
1186 | gcc_assert (!plus); | |
1187 | plus = true; | |
1188 | continue; | |
1189 | ||
1190 | case '#': | |
1191 | gcc_assert (!hash); | |
1192 | hash = true; | |
1193 | continue; | |
1194 | ||
1195 | case 'w': | |
1196 | gcc_assert (!wide); | |
1197 | wide = true; | |
1198 | continue; | |
1199 | ||
1200 | case 'l': | |
1201 | /* We don't support precision beyond that of "long long". */ | |
1202 | gcc_assert (precision < 2); | |
1203 | precision++; | |
1204 | continue; | |
1205 | } | |
1206 | break; | |
a668adb2 | 1207 | } |
39ce81c9 ZW |
1208 | |
1209 | gcc_assert (!wide || precision == 0); | |
1210 | ||
1211 | if (quote) | |
4b84d650 JJ |
1212 | { |
1213 | pp_string (pp, open_quote); | |
1214 | pp_string (pp, colorize_start (pp_show_color (pp), "quote")); | |
1215 | } | |
39ce81c9 ZW |
1216 | |
1217 | switch (*p) | |
b6fe0bb8 | 1218 | { |
4b84d650 JJ |
1219 | case 'r': |
1220 | pp_string (pp, colorize_start (pp_show_color (pp), | |
1221 | va_arg (*text->args_ptr, | |
1222 | const char *))); | |
1223 | break; | |
1224 | ||
b6fe0bb8 | 1225 | case 'c': |
3f0177e7 MS |
1226 | { |
1227 | /* When quoting, print alphanumeric, punctuation, and the space | |
1228 | character unchanged, and all others in hexadecimal with the | |
1229 | "\x" prefix. Otherwise print them all unchanged. */ | |
1230 | int chr = va_arg (*text->args_ptr, int); | |
1231 | if (ISPRINT (chr) || !quote) | |
1232 | pp_character (pp, chr); | |
1233 | else | |
1234 | { | |
1235 | const char str [2] = { chr, '\0' }; | |
1236 | pp_quoted_string (pp, str, 1); | |
1237 | } | |
1238 | break; | |
1239 | } | |
b6fe0bb8 GDR |
1240 | |
1241 | case 'd': | |
1242 | case 'i': | |
39ce81c9 ZW |
1243 | if (wide) |
1244 | pp_wide_integer (pp, va_arg (*text->args_ptr, HOST_WIDE_INT)); | |
1245 | else | |
1246 | pp_integer_with_precision | |
1247 | (pp, *text->args_ptr, precision, int, "d"); | |
b6fe0bb8 GDR |
1248 | break; |
1249 | ||
1250 | case 'o': | |
39ce81c9 ZW |
1251 | if (wide) |
1252 | pp_scalar (pp, "%" HOST_WIDE_INT_PRINT "o", | |
1253 | va_arg (*text->args_ptr, unsigned HOST_WIDE_INT)); | |
1254 | else | |
1255 | pp_integer_with_precision | |
1256 | (pp, *text->args_ptr, precision, unsigned, "o"); | |
b6fe0bb8 GDR |
1257 | break; |
1258 | ||
1259 | case 's': | |
3f0177e7 MS |
1260 | if (quote) |
1261 | pp_quoted_string (pp, va_arg (*text->args_ptr, const char *)); | |
1262 | else | |
1263 | pp_string (pp, va_arg (*text->args_ptr, const char *)); | |
b6fe0bb8 GDR |
1264 | break; |
1265 | ||
39ce81c9 ZW |
1266 | case 'p': |
1267 | pp_pointer (pp, va_arg (*text->args_ptr, void *)); | |
1268 | break; | |
b6fe0bb8 GDR |
1269 | |
1270 | case 'u': | |
39ce81c9 ZW |
1271 | if (wide) |
1272 | pp_scalar (pp, HOST_WIDE_INT_PRINT_UNSIGNED, | |
1273 | va_arg (*text->args_ptr, unsigned HOST_WIDE_INT)); | |
1274 | else | |
1275 | pp_integer_with_precision | |
1276 | (pp, *text->args_ptr, precision, unsigned, "u"); | |
b6fe0bb8 GDR |
1277 | break; |
1278 | ||
975672f3 PK |
1279 | case 'Z': |
1280 | { | |
1281 | int *v = va_arg (*text->args_ptr, int *); | |
1282 | unsigned len = va_arg (*text->args_ptr, unsigned); | |
1283 | ||
1284 | for (unsigned i = 0; i < len; ++i) | |
1285 | { | |
1286 | pp_scalar (pp, "%i", v[i]); | |
1287 | if (i < len - 1) | |
1288 | { | |
1289 | pp_comma (pp); | |
1290 | pp_space (pp); | |
1291 | } | |
1292 | } | |
1293 | break; | |
1294 | } | |
1295 | ||
b6fe0bb8 | 1296 | case 'x': |
39ce81c9 ZW |
1297 | if (wide) |
1298 | pp_scalar (pp, HOST_WIDE_INT_PRINT_HEX, | |
1299 | va_arg (*text->args_ptr, unsigned HOST_WIDE_INT)); | |
1300 | else | |
1301 | pp_integer_with_precision | |
1302 | (pp, *text->args_ptr, precision, unsigned, "x"); | |
b6fe0bb8 GDR |
1303 | break; |
1304 | ||
b6fe0bb8 GDR |
1305 | case '.': |
1306 | { | |
1307 | int n; | |
1308 | const char *s; | |
d5706a1e | 1309 | |
39ce81c9 ZW |
1310 | /* We handle '%.Ns' and '%.*s' or '%M$.*N$s' |
1311 | (where M == N + 1). The format string should be verified | |
1312 | already from the first phase. */ | |
1313 | p++; | |
1314 | if (ISDIGIT (*p)) | |
1315 | { | |
1316 | char *end; | |
1317 | n = strtoul (p, &end, 10); | |
1318 | p = end; | |
1319 | gcc_assert (*p == 's'); | |
1320 | } | |
1321 | else | |
1322 | { | |
1323 | gcc_assert (*p == '*'); | |
1324 | p++; | |
1325 | gcc_assert (*p == 's'); | |
1326 | n = va_arg (*text->args_ptr, int); | |
1327 | ||
1328 | /* This consumes a second entry in the formatters array. */ | |
1329 | gcc_assert (formatters[argno] == formatters[argno+1]); | |
1330 | argno++; | |
1331 | } | |
1332 | ||
b6fe0bb8 | 1333 | s = va_arg (*text->args_ptr, const char *); |
0a8923fa | 1334 | |
86ef85d3 MS |
1335 | /* Append the lesser of precision and strlen (s) characters |
1336 | from the array (which need not be a nul-terminated string). | |
1337 | Negative precision is treated as if it were omitted. */ | |
1338 | size_t len = n < 0 ? strlen (s) : strnlen (s, n); | |
0a8923fa MS |
1339 | |
1340 | pp_append_text (pp, s, s + len); | |
b6fe0bb8 GDR |
1341 | } |
1342 | break; | |
1343 | ||
1344 | default: | |
0e61db61 NS |
1345 | { |
1346 | bool ok; | |
39ce81c9 | 1347 | |
0e61db61 | 1348 | gcc_assert (pp_format_decoder (pp)); |
39ce81c9 | 1349 | ok = pp_format_decoder (pp) (pp, text, p, |
f012c8ef DM |
1350 | precision, wide, plus, hash, quote, |
1351 | formatters[argno]); | |
0e61db61 NS |
1352 | gcc_assert (ok); |
1353 | } | |
b6fe0bb8 | 1354 | } |
39ce81c9 ZW |
1355 | |
1356 | if (quote) | |
4b84d650 JJ |
1357 | { |
1358 | pp_string (pp, colorize_stop (pp_show_color (pp))); | |
1359 | pp_string (pp, close_quote); | |
1360 | } | |
39ce81c9 ZW |
1361 | |
1362 | obstack_1grow (&buffer->chunk_obstack, '\0'); | |
1363 | *formatters[argno] = XOBFINISH (&buffer->chunk_obstack, const char *); | |
b6fe0bb8 | 1364 | } |
39ce81c9 | 1365 | |
b2b29377 MM |
1366 | if (CHECKING_P) |
1367 | for (; argno < PP_NL_ARGMAX; argno++) | |
1368 | gcc_assert (!formatters[argno]); | |
39ce81c9 | 1369 | |
f012c8ef DM |
1370 | /* If the client supplied a postprocessing object, call its "handle" |
1371 | hook here. */ | |
1372 | if (pp->m_format_postprocessor) | |
1373 | pp->m_format_postprocessor->handle (pp); | |
1374 | ||
39ce81c9 ZW |
1375 | /* Revert to normal obstack and wrapping mode. */ |
1376 | buffer->obstack = &buffer->formatted_obstack; | |
1377 | buffer->line_length = 0; | |
1378 | pp_wrapping_mode (pp) = old_wrapping_mode; | |
1379 | pp_clear_state (pp); | |
1380 | } | |
1381 | ||
1382 | /* Format of a message pointed to by TEXT. */ | |
1383 | void | |
b066401f | 1384 | pp_output_formatted_text (pretty_printer *pp) |
39ce81c9 ZW |
1385 | { |
1386 | unsigned int chunk; | |
1387 | output_buffer *buffer = pp_buffer (pp); | |
1388 | struct chunk_info *chunk_array = buffer->cur_chunk_array; | |
1389 | const char **args = chunk_array->args; | |
1390 | ||
1391 | gcc_assert (buffer->obstack == &buffer->formatted_obstack); | |
1392 | gcc_assert (buffer->line_length == 0); | |
1393 | ||
b066401f | 1394 | /* This is a third phase, first 2 phases done in pp_format_args. |
39ce81c9 ZW |
1395 | Now we actually print it. */ |
1396 | for (chunk = 0; args[chunk]; chunk++) | |
1397 | pp_string (pp, args[chunk]); | |
1398 | ||
1399 | /* Deallocate the chunk structure and everything after it (i.e. the | |
1400 | associated series of formatted strings). */ | |
1401 | buffer->cur_chunk_array = chunk_array->prev; | |
1402 | obstack_free (&buffer->chunk_obstack, chunk_array); | |
b6fe0bb8 GDR |
1403 | } |
1404 | ||
1405 | /* Helper subroutine of output_verbatim and verbatim. Do the appropriate | |
1406 | settings needed by BUFFER for a verbatim formatting. */ | |
1407 | void | |
b066401f | 1408 | pp_format_verbatim (pretty_printer *pp, text_info *text) |
b6fe0bb8 | 1409 | { |
b6fe0bb8 | 1410 | /* Set verbatim mode. */ |
39ce81c9 ZW |
1411 | pp_wrapping_mode_t oldmode = pp_set_verbatim_wrapping (pp); |
1412 | ||
b6fe0bb8 | 1413 | /* Do the actual formatting. */ |
39ce81c9 ZW |
1414 | pp_format (pp, text); |
1415 | pp_output_formatted_text (pp); | |
1416 | ||
b6fe0bb8 | 1417 | /* Restore previous settings. */ |
39ce81c9 | 1418 | pp_wrapping_mode (pp) = oldmode; |
b6fe0bb8 GDR |
1419 | } |
1420 | ||
48749dbc MLI |
1421 | /* Flush the content of BUFFER onto the attached stream. This |
1422 | function does nothing unless pp->output_buffer->flush_p. */ | |
b6fe0bb8 | 1423 | void |
b066401f | 1424 | pp_flush (pretty_printer *pp) |
b6fe0bb8 | 1425 | { |
48749dbc MLI |
1426 | pp_clear_state (pp); |
1427 | if (!pp->buffer->flush_p) | |
1428 | return; | |
b6fe0bb8 | 1429 | pp_write_text_to_stream (pp); |
48749dbc MLI |
1430 | fflush (pp_buffer (pp)->stream); |
1431 | } | |
1432 | ||
1433 | /* Flush the content of BUFFER onto the attached stream independently | |
1434 | of the value of pp->output_buffer->flush_p. */ | |
1435 | void | |
1436 | pp_really_flush (pretty_printer *pp) | |
1437 | { | |
b6fe0bb8 | 1438 | pp_clear_state (pp); |
48749dbc | 1439 | pp_write_text_to_stream (pp); |
025311c4 | 1440 | fflush (pp_buffer (pp)->stream); |
b6fe0bb8 GDR |
1441 | } |
1442 | ||
1443 | /* Sets the number of maximum characters per line PRETTY-PRINTER can | |
1444 | output in line-wrapping mode. A LENGTH value 0 suppresses | |
1445 | line-wrapping. */ | |
1446 | void | |
b066401f | 1447 | pp_set_line_maximum_length (pretty_printer *pp, int length) |
b6fe0bb8 GDR |
1448 | { |
1449 | pp_line_cutoff (pp) = length; | |
1450 | pp_set_real_maximum_length (pp); | |
1451 | } | |
1452 | ||
1453 | /* Clear PRETTY-PRINTER output area text info. */ | |
1454 | void | |
b066401f | 1455 | pp_clear_output_area (pretty_printer *pp) |
b6fe0bb8 | 1456 | { |
025311c4 GDR |
1457 | obstack_free (pp_buffer (pp)->obstack, |
1458 | obstack_base (pp_buffer (pp)->obstack)); | |
1459 | pp_buffer (pp)->line_length = 0; | |
b6fe0bb8 GDR |
1460 | } |
1461 | ||
1462 | /* Set PREFIX for PRETTY-PRINTER. */ | |
1463 | void | |
b066401f | 1464 | pp_set_prefix (pretty_printer *pp, const char *prefix) |
b6fe0bb8 GDR |
1465 | { |
1466 | pp->prefix = prefix; | |
1467 | pp_set_real_maximum_length (pp); | |
1468 | pp->emitted_prefix = false; | |
1469 | pp_indentation (pp) = 0; | |
1470 | } | |
1471 | ||
1472 | /* Free PRETTY-PRINTER's prefix, a previously malloc()'d string. */ | |
1473 | void | |
b066401f | 1474 | pp_destroy_prefix (pretty_printer *pp) |
b6fe0bb8 GDR |
1475 | { |
1476 | if (pp->prefix != NULL) | |
1477 | { | |
b1d5455a | 1478 | free (CONST_CAST (char *, pp->prefix)); |
b6fe0bb8 GDR |
1479 | pp->prefix = NULL; |
1480 | } | |
1481 | } | |
1482 | ||
1483 | /* Write out PRETTY-PRINTER's prefix. */ | |
1484 | void | |
b066401f | 1485 | pp_emit_prefix (pretty_printer *pp) |
b6fe0bb8 GDR |
1486 | { |
1487 | if (pp->prefix != NULL) | |
1488 | { | |
1489 | switch (pp_prefixing_rule (pp)) | |
1490 | { | |
1491 | default: | |
1492 | case DIAGNOSTICS_SHOW_PREFIX_NEVER: | |
1493 | break; | |
1494 | ||
1495 | case DIAGNOSTICS_SHOW_PREFIX_ONCE: | |
1496 | if (pp->emitted_prefix) | |
1497 | { | |
b066401f | 1498 | pp_indent (pp); |
b6fe0bb8 GDR |
1499 | break; |
1500 | } | |
1501 | pp_indentation (pp) += 3; | |
1502 | /* Fall through. */ | |
1503 | ||
1504 | case DIAGNOSTICS_SHOW_PREFIX_EVERY_LINE: | |
1505 | { | |
1506 | int prefix_length = strlen (pp->prefix); | |
1507 | pp_append_r (pp, pp->prefix, prefix_length); | |
1508 | pp->emitted_prefix = true; | |
1509 | } | |
1510 | break; | |
1511 | } | |
1512 | } | |
1513 | } | |
1514 | ||
1515 | /* Construct a PRETTY-PRINTER with PREFIX and of MAXIMUM_LENGTH | |
1516 | characters per line. */ | |
da6ca2b5 GDR |
1517 | |
1518 | pretty_printer::pretty_printer (const char *p, int l) | |
1519 | : buffer (new (XCNEW (output_buffer)) output_buffer ()), | |
1520 | prefix (), | |
1521 | padding (pp_none), | |
1522 | maximum_length (), | |
1523 | indent_skip (), | |
1524 | wrapping (), | |
1525 | format_decoder (), | |
f012c8ef | 1526 | m_format_postprocessor (NULL), |
da6ca2b5 GDR |
1527 | emitted_prefix (), |
1528 | need_newline (), | |
c3284718 | 1529 | translate_identifiers (true), |
da6ca2b5 | 1530 | show_color () |
b6fe0bb8 | 1531 | { |
da6ca2b5 GDR |
1532 | pp_line_cutoff (this) = l; |
1533 | /* By default, we emit prefixes once per message. */ | |
1534 | pp_prefixing_rule (this) = DIAGNOSTICS_SHOW_PREFIX_ONCE; | |
1535 | pp_set_prefix (this, p); | |
b6fe0bb8 GDR |
1536 | } |
1537 | ||
025311c4 GDR |
1538 | pretty_printer::~pretty_printer () |
1539 | { | |
f012c8ef DM |
1540 | if (m_format_postprocessor) |
1541 | delete m_format_postprocessor; | |
025311c4 GDR |
1542 | buffer->~output_buffer (); |
1543 | XDELETE (buffer); | |
1544 | } | |
1545 | ||
b6fe0bb8 GDR |
1546 | /* Append a string delimited by START and END to the output area of |
1547 | PRETTY-PRINTER. No line wrapping is done. However, if beginning a | |
1548 | new line then emit PRETTY-PRINTER's prefix and skip any leading | |
1549 | whitespace if appropriate. The caller must ensure that it is | |
1550 | safe to do so. */ | |
1551 | void | |
b066401f | 1552 | pp_append_text (pretty_printer *pp, const char *start, const char *end) |
b6fe0bb8 GDR |
1553 | { |
1554 | /* Emit prefix and skip whitespace if we're starting a new line. */ | |
025311c4 | 1555 | if (pp_buffer (pp)->line_length == 0) |
b6fe0bb8 GDR |
1556 | { |
1557 | pp_emit_prefix (pp); | |
1558 | if (pp_is_wrapping_line (pp)) | |
1559 | while (start != end && *start == ' ') | |
1560 | ++start; | |
1561 | } | |
1562 | pp_append_r (pp, start, end - start); | |
1563 | } | |
1564 | ||
1565 | /* Finishes constructing a NULL-terminated character string representing | |
1566 | the PRETTY-PRINTED text. */ | |
1567 | const char * | |
b066401f | 1568 | pp_formatted_text (pretty_printer *pp) |
b6fe0bb8 | 1569 | { |
c4100eae | 1570 | return output_buffer_formatted_text (pp_buffer (pp)); |
b6fe0bb8 GDR |
1571 | } |
1572 | ||
1573 | /* Return a pointer to the last character emitted in PRETTY-PRINTER's | |
1574 | output area. A NULL pointer means no character available. */ | |
1575 | const char * | |
b066401f | 1576 | pp_last_position_in_text (const pretty_printer *pp) |
b6fe0bb8 | 1577 | { |
c4100eae | 1578 | return output_buffer_last_position_in_text (pp_buffer (pp)); |
b6fe0bb8 GDR |
1579 | } |
1580 | ||
1581 | /* Return the amount of characters PRETTY-PRINTER can accept to | |
ba228239 | 1582 | make a full line. Meaningful only in line-wrapping mode. */ |
b6fe0bb8 | 1583 | int |
b066401f | 1584 | pp_remaining_character_count_for_line (pretty_printer *pp) |
b6fe0bb8 | 1585 | { |
025311c4 | 1586 | return pp->maximum_length - pp_buffer (pp)->line_length; |
b6fe0bb8 GDR |
1587 | } |
1588 | ||
1589 | ||
1590 | /* Format a message into BUFFER a la printf. */ | |
1591 | void | |
1592 | pp_printf (pretty_printer *pp, const char *msg, ...) | |
1593 | { | |
1594 | text_info text; | |
1595 | va_list ap; | |
1596 | ||
1597 | va_start (ap, msg); | |
1598 | text.err_no = errno; | |
1599 | text.args_ptr = ≈ | |
1600 | text.format_spec = msg; | |
39ce81c9 ZW |
1601 | pp_format (pp, &text); |
1602 | pp_output_formatted_text (pp); | |
b6fe0bb8 GDR |
1603 | va_end (ap); |
1604 | } | |
1605 | ||
1606 | ||
1607 | /* Output MESSAGE verbatim into BUFFER. */ | |
1608 | void | |
1609 | pp_verbatim (pretty_printer *pp, const char *msg, ...) | |
1610 | { | |
1611 | text_info text; | |
1612 | va_list ap; | |
1613 | ||
1614 | va_start (ap, msg); | |
1615 | text.err_no = errno; | |
1616 | text.args_ptr = ≈ | |
1617 | text.format_spec = msg; | |
1618 | pp_format_verbatim (pp, &text); | |
1619 | va_end (ap); | |
1620 | } | |
1621 | ||
1622 | ||
1623 | ||
1624 | /* Have PRETTY-PRINTER start a new line. */ | |
1625 | void | |
b066401f | 1626 | pp_newline (pretty_printer *pp) |
b6fe0bb8 | 1627 | { |
025311c4 | 1628 | obstack_1grow (pp_buffer (pp)->obstack, '\n'); |
c4669594 | 1629 | pp_needs_newline (pp) = false; |
025311c4 | 1630 | pp_buffer (pp)->line_length = 0; |
b6fe0bb8 GDR |
1631 | } |
1632 | ||
1633 | /* Have PRETTY-PRINTER add a CHARACTER. */ | |
1634 | void | |
b066401f | 1635 | pp_character (pretty_printer *pp, int c) |
b6fe0bb8 GDR |
1636 | { |
1637 | if (pp_is_wrapping_line (pp) | |
1638 | && pp_remaining_character_count_for_line (pp) <= 0) | |
1639 | { | |
1640 | pp_newline (pp); | |
1641 | if (ISSPACE (c)) | |
1642 | return; | |
1643 | } | |
025311c4 GDR |
1644 | obstack_1grow (pp_buffer (pp)->obstack, c); |
1645 | ++pp_buffer (pp)->line_length; | |
b6fe0bb8 GDR |
1646 | } |
1647 | ||
1648 | /* Append a STRING to the output area of PRETTY-PRINTER; the STRING may | |
1649 | be line-wrapped if in appropriate mode. */ | |
1650 | void | |
b066401f | 1651 | pp_string (pretty_printer *pp, const char *str) |
b6fe0bb8 | 1652 | { |
41d9f1e0 MLI |
1653 | gcc_checking_assert (str); |
1654 | pp_maybe_wrap_text (pp, str, str + strlen (str)); | |
b6fe0bb8 GDR |
1655 | } |
1656 | ||
3f0177e7 MS |
1657 | /* Append the leading N characters of STRING to the output area of |
1658 | PRETTY-PRINTER, quoting in hexadecimal non-printable characters. | |
1659 | Setting N = -1 is as if N were set to strlen (STRING). The STRING | |
1660 | may be line-wrapped if in appropriate mode. */ | |
1661 | static void | |
1662 | pp_quoted_string (pretty_printer *pp, const char *str, size_t n /* = -1 */) | |
1663 | { | |
1664 | gcc_checking_assert (str); | |
1665 | ||
1666 | const char *last = str; | |
1667 | const char *ps; | |
1668 | ||
1669 | /* Compute the length if not specified. */ | |
1670 | if (n == (size_t) -1) | |
1671 | n = strlen (str); | |
1672 | ||
1673 | for (ps = str; n; ++ps, --n) | |
1674 | { | |
1675 | if (ISPRINT (*ps)) | |
1676 | continue; | |
1677 | ||
1678 | if (last < ps) | |
1679 | pp_maybe_wrap_text (pp, last, ps - 1); | |
1680 | ||
1681 | /* Append the hexadecimal value of the character. Allocate a buffer | |
1682 | that's large enough for a 32-bit char plus the hex prefix. */ | |
1683 | char buf [11]; | |
1684 | int n = sprintf (buf, "\\x%02x", (unsigned char)*ps); | |
1685 | pp_maybe_wrap_text (pp, buf, buf + n); | |
1686 | last = ps + 1; | |
1687 | } | |
1688 | ||
1689 | pp_maybe_wrap_text (pp, last, ps); | |
1690 | } | |
1691 | ||
471854f8 | 1692 | /* Maybe print out a whitespace if needed. */ |
b6fe0bb8 | 1693 | |
b9b44fb9 | 1694 | void |
b066401f | 1695 | pp_maybe_space (pretty_printer *pp) |
b9b44fb9 | 1696 | { |
b066401f | 1697 | if (pp->padding != pp_none) |
b9b44fb9 GDR |
1698 | { |
1699 | pp_space (pp); | |
b066401f | 1700 | pp->padding = pp_none; |
b9b44fb9 GDR |
1701 | } |
1702 | } | |
0fc80001 GDR |
1703 | |
1704 | // Add a newline to the pretty printer PP and flush formatted text. | |
1705 | ||
1706 | void | |
1707 | pp_newline_and_flush (pretty_printer *pp) | |
1708 | { | |
1709 | pp_newline (pp); | |
1710 | pp_flush (pp); | |
1711 | pp_needs_newline (pp) = false; | |
1712 | } | |
1713 | ||
1714 | // Add a newline to the pretty printer PP, followed by indentation. | |
1715 | ||
1716 | void | |
1717 | pp_newline_and_indent (pretty_printer *pp, int n) | |
1718 | { | |
1719 | pp_indentation (pp) += n; | |
1720 | pp_newline (pp); | |
1721 | pp_indent (pp); | |
1722 | pp_needs_newline (pp) = false; | |
1723 | } | |
1724 | ||
1725 | // Add separator C, followed by a single whitespace. | |
1726 | ||
1727 | void | |
1728 | pp_separate_with (pretty_printer *pp, char c) | |
1729 | { | |
1730 | pp_character (pp, c); | |
1731 | pp_space (pp); | |
1732 | } | |
1733 | ||
a3af5087 JM |
1734 | \f |
1735 | /* The string starting at P has LEN (at least 1) bytes left; if they | |
1736 | start with a valid UTF-8 sequence, return the length of that | |
1737 | sequence and set *VALUE to the value of that sequence, and | |
1738 | otherwise return 0 and set *VALUE to (unsigned int) -1. */ | |
1739 | ||
1740 | static int | |
1741 | decode_utf8_char (const unsigned char *p, size_t len, unsigned int *value) | |
1742 | { | |
1743 | unsigned int t = *p; | |
1744 | ||
1745 | if (len == 0) | |
1746 | abort (); | |
1747 | if (t & 0x80) | |
1748 | { | |
1749 | size_t utf8_len = 0; | |
1750 | unsigned int ch; | |
1751 | size_t i; | |
1752 | for (t = *p; t & 0x80; t <<= 1) | |
1753 | utf8_len++; | |
1754 | ||
1755 | if (utf8_len > len || utf8_len < 2 || utf8_len > 6) | |
1756 | { | |
1757 | *value = (unsigned int) -1; | |
1758 | return 0; | |
1759 | } | |
1760 | ch = *p & ((1 << (7 - utf8_len)) - 1); | |
1761 | for (i = 1; i < utf8_len; i++) | |
1762 | { | |
1763 | unsigned int u = p[i]; | |
1764 | if ((u & 0xC0) != 0x80) | |
1765 | { | |
1766 | *value = (unsigned int) -1; | |
1767 | return 0; | |
1768 | } | |
1769 | ch = (ch << 6) | (u & 0x3F); | |
1770 | } | |
1771 | if ( (ch <= 0x7F && utf8_len > 1) | |
1772 | || (ch <= 0x7FF && utf8_len > 2) | |
1773 | || (ch <= 0xFFFF && utf8_len > 3) | |
1774 | || (ch <= 0x1FFFFF && utf8_len > 4) | |
1775 | || (ch <= 0x3FFFFFF && utf8_len > 5) | |
1776 | || (ch >= 0xD800 && ch <= 0xDFFF)) | |
1777 | { | |
1778 | *value = (unsigned int) -1; | |
1779 | return 0; | |
1780 | } | |
1781 | *value = ch; | |
1782 | return utf8_len; | |
1783 | } | |
1784 | else | |
1785 | { | |
1786 | *value = t; | |
1787 | return 1; | |
1788 | } | |
1789 | } | |
1790 | ||
ab9b814d JM |
1791 | /* Allocator for identifier_to_locale and corresponding function to |
1792 | free memory. */ | |
1793 | ||
1794 | void *(*identifier_to_locale_alloc) (size_t) = xmalloc; | |
1795 | void (*identifier_to_locale_free) (void *) = free; | |
1796 | ||
a3af5087 JM |
1797 | /* Given IDENT, an identifier in the internal encoding, return a |
1798 | version of IDENT suitable for diagnostics in the locale character | |
ab9b814d JM |
1799 | set: either IDENT itself, or a string, allocated using |
1800 | identifier_to_locale_alloc, converted to the locale character set | |
1801 | and using escape sequences if not representable in the locale | |
1802 | character set or containing control characters or invalid byte | |
1803 | sequences. Existing backslashes in IDENT are not doubled, so the | |
1804 | result may not uniquely specify the contents of an arbitrary byte | |
1805 | sequence identifier. */ | |
a3af5087 JM |
1806 | |
1807 | const char * | |
1808 | identifier_to_locale (const char *ident) | |
1809 | { | |
1810 | const unsigned char *uid = (const unsigned char *) ident; | |
1811 | size_t idlen = strlen (ident); | |
1812 | bool valid_printable_utf8 = true; | |
1813 | bool all_ascii = true; | |
1814 | size_t i; | |
1815 | ||
1816 | for (i = 0; i < idlen;) | |
1817 | { | |
1818 | unsigned int c; | |
1819 | size_t utf8_len = decode_utf8_char (&uid[i], idlen - i, &c); | |
1820 | if (utf8_len == 0 || c <= 0x1F || (c >= 0x7F && c <= 0x9F)) | |
1821 | { | |
1822 | valid_printable_utf8 = false; | |
1823 | break; | |
1824 | } | |
1825 | if (utf8_len > 1) | |
1826 | all_ascii = false; | |
1827 | i += utf8_len; | |
1828 | } | |
1829 | ||
1830 | /* If IDENT contains invalid UTF-8 sequences (which may occur with | |
1831 | attributes putting arbitrary byte sequences in identifiers), or | |
1832 | control characters, we use octal escape sequences for all bytes | |
1833 | outside printable ASCII. */ | |
1834 | if (!valid_printable_utf8) | |
1835 | { | |
ab9b814d | 1836 | char *ret = (char *) identifier_to_locale_alloc (4 * idlen + 1); |
a3af5087 JM |
1837 | char *p = ret; |
1838 | for (i = 0; i < idlen; i++) | |
1839 | { | |
1840 | if (uid[i] > 0x1F && uid[i] < 0x7F) | |
1841 | *p++ = uid[i]; | |
1842 | else | |
1843 | { | |
1844 | sprintf (p, "\\%03o", uid[i]); | |
1845 | p += 4; | |
1846 | } | |
1847 | } | |
1848 | *p = 0; | |
1849 | return ret; | |
1850 | } | |
1851 | ||
1852 | /* Otherwise, if it is valid printable ASCII, or printable UTF-8 | |
1853 | with the locale character set being UTF-8, IDENT is used. */ | |
1854 | if (all_ascii || locale_utf8) | |
1855 | return ident; | |
1856 | ||
1857 | /* Otherwise IDENT is converted to the locale character set if | |
1858 | possible. */ | |
1859 | #if defined ENABLE_NLS && defined HAVE_LANGINFO_CODESET && HAVE_ICONV | |
1860 | if (locale_encoding != NULL) | |
1861 | { | |
1862 | iconv_t cd = iconv_open (locale_encoding, "UTF-8"); | |
1863 | bool conversion_ok = true; | |
1864 | char *ret = NULL; | |
1865 | if (cd != (iconv_t) -1) | |
1866 | { | |
1867 | size_t ret_alloc = 4 * idlen + 1; | |
1868 | for (;;) | |
1869 | { | |
1870 | /* Repeat the whole conversion process as needed with | |
1871 | larger buffers so non-reversible transformations can | |
1872 | always be detected. */ | |
1873 | ICONV_CONST char *inbuf = CONST_CAST (char *, ident); | |
1874 | char *outbuf; | |
1875 | size_t inbytesleft = idlen; | |
1876 | size_t outbytesleft = ret_alloc - 1; | |
1877 | size_t iconv_ret; | |
1878 | ||
ab9b814d | 1879 | ret = (char *) identifier_to_locale_alloc (ret_alloc); |
a3af5087 JM |
1880 | outbuf = ret; |
1881 | ||
1882 | if (iconv (cd, 0, 0, 0, 0) == (size_t) -1) | |
1883 | { | |
1884 | conversion_ok = false; | |
1885 | break; | |
1886 | } | |
1887 | ||
1888 | iconv_ret = iconv (cd, &inbuf, &inbytesleft, | |
1889 | &outbuf, &outbytesleft); | |
1890 | if (iconv_ret == (size_t) -1 || inbytesleft != 0) | |
1891 | { | |
1892 | if (errno == E2BIG) | |
1893 | { | |
1894 | ret_alloc *= 2; | |
ab9b814d | 1895 | identifier_to_locale_free (ret); |
a3af5087 JM |
1896 | ret = NULL; |
1897 | continue; | |
1898 | } | |
1899 | else | |
1900 | { | |
1901 | conversion_ok = false; | |
1902 | break; | |
1903 | } | |
1904 | } | |
1905 | else if (iconv_ret != 0) | |
1906 | { | |
1907 | conversion_ok = false; | |
1908 | break; | |
1909 | } | |
1910 | /* Return to initial shift state. */ | |
1911 | if (iconv (cd, 0, 0, &outbuf, &outbytesleft) == (size_t) -1) | |
1912 | { | |
1913 | if (errno == E2BIG) | |
1914 | { | |
1915 | ret_alloc *= 2; | |
ab9b814d | 1916 | identifier_to_locale_free (ret); |
a3af5087 JM |
1917 | ret = NULL; |
1918 | continue; | |
1919 | } | |
1920 | else | |
1921 | { | |
1922 | conversion_ok = false; | |
1923 | break; | |
1924 | } | |
1925 | } | |
1926 | *outbuf = 0; | |
1927 | break; | |
1928 | } | |
1929 | iconv_close (cd); | |
1930 | if (conversion_ok) | |
1931 | return ret; | |
1932 | } | |
1933 | } | |
1934 | #endif | |
1935 | ||
1936 | /* Otherwise, convert non-ASCII characters in IDENT to UCNs. */ | |
1937 | { | |
ab9b814d | 1938 | char *ret = (char *) identifier_to_locale_alloc (10 * idlen + 1); |
a3af5087 JM |
1939 | char *p = ret; |
1940 | for (i = 0; i < idlen;) | |
1941 | { | |
1942 | unsigned int c; | |
1943 | size_t utf8_len = decode_utf8_char (&uid[i], idlen - i, &c); | |
1944 | if (utf8_len == 1) | |
1945 | *p++ = uid[i]; | |
1946 | else | |
1947 | { | |
1948 | sprintf (p, "\\U%08x", c); | |
1949 | p += 10; | |
1950 | } | |
1951 | i += utf8_len; | |
1952 | } | |
1953 | *p = 0; | |
1954 | return ret; | |
1955 | } | |
1956 | } | |
4ccab56d DM |
1957 | |
1958 | #if CHECKING_P | |
1959 | ||
1960 | namespace selftest { | |
1961 | ||
1962 | /* Smoketest for pretty_printer. */ | |
1963 | ||
1964 | static void | |
1965 | test_basic_printing () | |
1966 | { | |
1967 | pretty_printer pp; | |
1968 | pp_string (&pp, "hello"); | |
1969 | pp_space (&pp); | |
1970 | pp_string (&pp, "world"); | |
1971 | ||
1972 | ASSERT_STREQ ("hello world", pp_formatted_text (&pp)); | |
1973 | } | |
1974 | ||
1975 | /* Helper function for testing pp_format. | |
1976 | Verify that pp_format (FMT, ...) followed by pp_output_formatted_text | |
1977 | prints EXPECTED, assuming that pp_show_color is SHOW_COLOR. */ | |
1978 | ||
1979 | static void | |
09765e3a DM |
1980 | assert_pp_format_va (const location &loc, const char *expected, |
1981 | bool show_color, const char *fmt, va_list *ap) | |
4ccab56d DM |
1982 | { |
1983 | pretty_printer pp; | |
1984 | text_info ti; | |
1985 | rich_location rich_loc (line_table, UNKNOWN_LOCATION); | |
1986 | ||
1987 | ti.format_spec = fmt; | |
1988 | ti.args_ptr = ap; | |
1989 | ti.err_no = 0; | |
1990 | ti.x_data = NULL; | |
1991 | ti.m_richloc = &rich_loc; | |
1992 | ||
1993 | pp_show_color (&pp) = show_color; | |
1994 | pp_format (&pp, &ti); | |
1995 | pp_output_formatted_text (&pp); | |
09765e3a | 1996 | ASSERT_STREQ_AT (loc, expected, pp_formatted_text (&pp)); |
4ccab56d DM |
1997 | } |
1998 | ||
1999 | /* Verify that pp_format (FMT, ...) followed by pp_output_formatted_text | |
2000 | prints EXPECTED, with show_color disabled. */ | |
2001 | ||
2002 | static void | |
09765e3a DM |
2003 | assert_pp_format (const location &loc, const char *expected, |
2004 | const char *fmt, ...) | |
4ccab56d DM |
2005 | { |
2006 | va_list ap; | |
2007 | ||
2008 | va_start (ap, fmt); | |
09765e3a | 2009 | assert_pp_format_va (loc, expected, false, fmt, &ap); |
4ccab56d DM |
2010 | va_end (ap); |
2011 | } | |
2012 | ||
2013 | /* As above, but with colorization enabled. */ | |
2014 | ||
2015 | static void | |
09765e3a DM |
2016 | assert_pp_format_colored (const location &loc, const char *expected, |
2017 | const char *fmt, ...) | |
4ccab56d | 2018 | { |
2fe00b1f DM |
2019 | /* The tests of colorization assume the default color scheme. |
2020 | If GCC_COLORS is set, then the colors have potentially been | |
2021 | overridden; skip the test. */ | |
2022 | if (getenv ("GCC_COLORS")) | |
2023 | return; | |
2024 | ||
4ccab56d DM |
2025 | va_list ap; |
2026 | ||
2027 | va_start (ap, fmt); | |
09765e3a | 2028 | assert_pp_format_va (loc, expected, true, fmt, &ap); |
4ccab56d DM |
2029 | va_end (ap); |
2030 | } | |
2031 | ||
09765e3a DM |
2032 | /* Helper function for calling testing pp_format, |
2033 | by calling assert_pp_format with various numbers of arguments. | |
2034 | These exist mostly to avoid having to write SELFTEST_LOCATION | |
2035 | throughout test_pp_format. */ | |
2036 | ||
2037 | #define ASSERT_PP_FORMAT_1(EXPECTED, FMT, ARG1) \ | |
2038 | SELFTEST_BEGIN_STMT \ | |
2039 | assert_pp_format ((SELFTEST_LOCATION), (EXPECTED), (FMT), \ | |
2040 | (ARG1)); \ | |
2041 | SELFTEST_END_STMT | |
2042 | ||
2043 | #define ASSERT_PP_FORMAT_2(EXPECTED, FMT, ARG1, ARG2) \ | |
2044 | SELFTEST_BEGIN_STMT \ | |
2045 | assert_pp_format ((SELFTEST_LOCATION), (EXPECTED), (FMT), \ | |
2046 | (ARG1), (ARG2)); \ | |
2047 | SELFTEST_END_STMT | |
2048 | ||
2049 | #define ASSERT_PP_FORMAT_3(EXPECTED, FMT, ARG1, ARG2, ARG3) \ | |
2050 | SELFTEST_BEGIN_STMT \ | |
2051 | assert_pp_format ((SELFTEST_LOCATION), (EXPECTED), (FMT), \ | |
2052 | (ARG1), (ARG2), (ARG3)); \ | |
2053 | SELFTEST_END_STMT | |
2054 | ||
4ccab56d DM |
2055 | /* Verify that pp_format works, for various format codes. */ |
2056 | ||
2057 | static void | |
2058 | test_pp_format () | |
2059 | { | |
2060 | /* Avoid introducing locale-specific differences in the results | |
2061 | by hardcoding open_quote and close_quote. */ | |
2062 | const char *old_open_quote = open_quote; | |
2063 | const char *old_close_quote = close_quote; | |
2064 | open_quote = "`"; | |
2065 | close_quote = "'"; | |
2066 | ||
2067 | /* Verify that plain text is passed through unchanged. */ | |
09765e3a | 2068 | assert_pp_format (SELFTEST_LOCATION, "unformatted", "unformatted"); |
4ccab56d DM |
2069 | |
2070 | /* Verify various individual format codes, in the order listed in the | |
2071 | comment for pp_format above. For each code, we append a second | |
2072 | argument with a known bit pattern (0x12345678), to ensure that we | |
2073 | are consuming arguments correctly. */ | |
09765e3a DM |
2074 | ASSERT_PP_FORMAT_2 ("-27 12345678", "%d %x", -27, 0x12345678); |
2075 | ASSERT_PP_FORMAT_2 ("-5 12345678", "%i %x", -5, 0x12345678); | |
2076 | ASSERT_PP_FORMAT_2 ("10 12345678", "%u %x", 10, 0x12345678); | |
2077 | ASSERT_PP_FORMAT_2 ("17 12345678", "%o %x", 15, 0x12345678); | |
2078 | ASSERT_PP_FORMAT_2 ("cafebabe 12345678", "%x %x", 0xcafebabe, 0x12345678); | |
2079 | ASSERT_PP_FORMAT_2 ("-27 12345678", "%ld %x", (long)-27, 0x12345678); | |
2080 | ASSERT_PP_FORMAT_2 ("-5 12345678", "%li %x", (long)-5, 0x12345678); | |
2081 | ASSERT_PP_FORMAT_2 ("10 12345678", "%lu %x", (long)10, 0x12345678); | |
2082 | ASSERT_PP_FORMAT_2 ("17 12345678", "%lo %x", (long)15, 0x12345678); | |
2083 | ASSERT_PP_FORMAT_2 ("cafebabe 12345678", "%lx %x", (long)0xcafebabe, | |
2084 | 0x12345678); | |
2085 | ASSERT_PP_FORMAT_2 ("-27 12345678", "%lld %x", (long long)-27, 0x12345678); | |
2086 | ASSERT_PP_FORMAT_2 ("-5 12345678", "%lli %x", (long long)-5, 0x12345678); | |
2087 | ASSERT_PP_FORMAT_2 ("10 12345678", "%llu %x", (long long)10, 0x12345678); | |
2088 | ASSERT_PP_FORMAT_2 ("17 12345678", "%llo %x", (long long)15, 0x12345678); | |
2089 | ASSERT_PP_FORMAT_2 ("cafebabe 12345678", "%llx %x", (long long)0xcafebabe, | |
2090 | 0x12345678); | |
2091 | ASSERT_PP_FORMAT_2 ("-27 12345678", "%wd %x", (HOST_WIDE_INT)-27, 0x12345678); | |
2092 | ASSERT_PP_FORMAT_2 ("-5 12345678", "%wi %x", (HOST_WIDE_INT)-5, 0x12345678); | |
2093 | ASSERT_PP_FORMAT_2 ("10 12345678", "%wu %x", (unsigned HOST_WIDE_INT)10, | |
2094 | 0x12345678); | |
2095 | ASSERT_PP_FORMAT_2 ("17 12345678", "%wo %x", (HOST_WIDE_INT)15, 0x12345678); | |
2096 | ASSERT_PP_FORMAT_2 ("0xcafebabe 12345678", "%wx %x", (HOST_WIDE_INT)0xcafebabe, | |
2097 | 0x12345678); | |
2098 | ASSERT_PP_FORMAT_2 ("A 12345678", "%c %x", 'A', 0x12345678); | |
2099 | ASSERT_PP_FORMAT_2 ("hello world 12345678", "%s %x", "hello world", | |
2100 | 0x12345678); | |
86ef85d3 MS |
2101 | |
2102 | /* Not nul-terminated. */ | |
2103 | char arr[5] = { '1', '2', '3', '4', '5' }; | |
2104 | ASSERT_PP_FORMAT_3 ("123 12345678", "%.*s %x", 3, arr, 0x12345678); | |
2105 | ASSERT_PP_FORMAT_3 ("1234 12345678", "%.*s %x", -1, "1234", 0x12345678); | |
2106 | ASSERT_PP_FORMAT_3 ("12345 12345678", "%.*s %x", 7, "12345", 0x12345678); | |
2107 | ||
914bc2b9 DM |
2108 | /* We can't test for %p; the pointer is printed in an implementation-defined |
2109 | manner. */ | |
09765e3a DM |
2110 | ASSERT_PP_FORMAT_2 ("normal colored normal 12345678", |
2111 | "normal %rcolored%R normal %x", | |
2112 | "error", 0x12345678); | |
4ccab56d | 2113 | assert_pp_format_colored |
09765e3a DM |
2114 | (SELFTEST_LOCATION, |
2115 | "normal \33[01;31m\33[Kcolored\33[m\33[K normal 12345678", | |
4ccab56d DM |
2116 | "normal %rcolored%R normal %x", "error", 0x12345678); |
2117 | /* TODO: | |
2118 | %m: strerror(text->err_no) - does not consume a value from args_ptr. */ | |
09765e3a DM |
2119 | ASSERT_PP_FORMAT_1 ("% 12345678", "%% %x", 0x12345678); |
2120 | ASSERT_PP_FORMAT_1 ("` 12345678", "%< %x", 0x12345678); | |
2121 | ASSERT_PP_FORMAT_1 ("' 12345678", "%> %x", 0x12345678); | |
2122 | ASSERT_PP_FORMAT_1 ("' 12345678", "%' %x", 0x12345678); | |
2123 | ASSERT_PP_FORMAT_3 ("abc 12345678", "%.*s %x", 3, "abcdef", 0x12345678); | |
2124 | ASSERT_PP_FORMAT_2 ("abc 12345678", "%.3s %x", "abcdef", 0x12345678); | |
4ccab56d DM |
2125 | |
2126 | /* Verify flag 'q'. */ | |
09765e3a DM |
2127 | ASSERT_PP_FORMAT_2 ("`foo' 12345678", "%qs %x", "foo", 0x12345678); |
2128 | assert_pp_format_colored (SELFTEST_LOCATION, | |
2129 | "`\33[01m\33[Kfoo\33[m\33[K' 12345678", "%qs %x", | |
4ccab56d DM |
2130 | "foo", 0x12345678); |
2131 | ||
975672f3 PK |
2132 | /* Verify %Z. */ |
2133 | int v[] = { 1, 2, 3 }; | |
2134 | ASSERT_PP_FORMAT_3 ("1, 2, 3 12345678", "%Z %x", v, 3, 0x12345678); | |
2135 | ||
2136 | int v2[] = { 0 }; | |
2137 | ASSERT_PP_FORMAT_3 ("0 12345678", "%Z %x", v2, 1, 0x12345678); | |
2138 | ||
4ccab56d | 2139 | /* Verify that combinations work, along with unformatted text. */ |
09765e3a DM |
2140 | assert_pp_format (SELFTEST_LOCATION, |
2141 | "the quick brown fox jumps over the lazy dog", | |
4ccab56d DM |
2142 | "the %s %s %s jumps over the %s %s", |
2143 | "quick", "brown", "fox", "lazy", "dog"); | |
09765e3a DM |
2144 | assert_pp_format (SELFTEST_LOCATION, "item 3 of 7", "item %i of %i", 3, 7); |
2145 | assert_pp_format (SELFTEST_LOCATION, "problem with `bar' at line 10", | |
4ccab56d DM |
2146 | "problem with %qs at line %i", "bar", 10); |
2147 | ||
2148 | /* Restore old values of open_quote and close_quote. */ | |
2149 | open_quote = old_open_quote; | |
2150 | close_quote = old_close_quote; | |
2151 | } | |
2152 | ||
2153 | /* Run all of the selftests within this file. */ | |
2154 | ||
2155 | void | |
2156 | pretty_print_c_tests () | |
2157 | { | |
2158 | test_basic_printing (); | |
2159 | test_pp_format (); | |
2160 | } | |
2161 | ||
2162 | } // namespace selftest | |
2163 | ||
2164 | #endif /* CHECKING_P */ |