]>
Commit | Line | Data |
---|---|---|
ccc6cda3 JA |
1 | /* pathexp.c -- The shell interface to the globbing library. */ |
2 | ||
ac50fbac | 3 | /* Copyright (C) 1995-2014 Free Software Foundation, Inc. |
ccc6cda3 JA |
4 | |
5 | This file is part of GNU Bash, the Bourne Again SHell. | |
6 | ||
3185942a JA |
7 | Bash is free software: you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation, either version 3 of the License, or | |
10 | (at your option) any later version. | |
ccc6cda3 | 11 | |
3185942a JA |
12 | Bash is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
ccc6cda3 | 16 | |
3185942a JA |
17 | You should have received a copy of the GNU General Public License |
18 | along with Bash. If not, see <http://www.gnu.org/licenses/>. | |
19 | */ | |
ccc6cda3 JA |
20 | |
21 | #include "config.h" | |
22 | ||
23 | #include "bashtypes.h" | |
24 | #include <stdio.h> | |
25 | ||
26 | #if defined (HAVE_UNISTD_H) | |
27 | # include <unistd.h> | |
28 | #endif | |
29 | ||
30 | #include "bashansi.h" | |
31 | ||
32 | #include "shell.h" | |
33 | #include "pathexp.h" | |
34 | #include "flags.h" | |
35 | ||
7117c2d2 | 36 | #include "shmbutil.h" |
3185942a | 37 | #include "bashintl.h" |
7117c2d2 | 38 | |
f73dda09 | 39 | #include <glob/strmatch.h> |
b72432fd | 40 | |
7117c2d2 JA |
41 | static int glob_name_is_acceptable __P((const char *)); |
42 | static void ignore_globbed_names __P((char **, sh_ignore_func_t *)); | |
495aee44 | 43 | static char *split_ignorespec __P((char *, int *)); |
ac50fbac | 44 | |
b72432fd JA |
45 | #if defined (USE_POSIX_GLOB_LIBRARY) |
46 | # include <glob.h> | |
f73dda09 | 47 | typedef int posix_glob_errfunc_t __P((const char *, int)); |
b72432fd JA |
48 | #else |
49 | # include <glob/glob.h> | |
50 | #endif | |
ccc6cda3 JA |
51 | |
52 | /* Control whether * matches .files in globbing. */ | |
53 | int glob_dot_filenames; | |
54 | ||
cce855bc | 55 | /* Control whether the extended globbing features are enabled. */ |
0001803f | 56 | int extended_glob = EXTGLOB_DEFAULT; |
cce855bc | 57 | |
3185942a JA |
58 | /* Control enabling special handling of `**' */ |
59 | int glob_star = 0; | |
60 | ||
ccc6cda3 JA |
61 | /* Return nonzero if STRING has any unquoted special globbing chars in it. */ |
62 | int | |
63 | unquoted_glob_pattern_p (string) | |
64 | register char *string; | |
65 | { | |
66 | register int c; | |
7117c2d2 | 67 | char *send; |
ccc6cda3 JA |
68 | int open; |
69 | ||
7117c2d2 JA |
70 | DECLARE_MBSTATE; |
71 | ||
ccc6cda3 | 72 | open = 0; |
7117c2d2 JA |
73 | send = string + strlen (string); |
74 | ||
ccc6cda3 JA |
75 | while (c = *string++) |
76 | { | |
77 | switch (c) | |
78 | { | |
79 | case '?': | |
80 | case '*': | |
81 | return (1); | |
82 | ||
83 | case '[': | |
84 | open++; | |
85 | continue; | |
86 | ||
87 | case ']': | |
88 | if (open) | |
89 | return (1); | |
90 | continue; | |
91 | ||
cce855bc JA |
92 | case '+': |
93 | case '@': | |
94 | case '!': | |
95 | if (*string == '(') /*)*/ | |
96 | return (1); | |
97 | continue; | |
98 | ||
d233b485 CR |
99 | /* A pattern can't end with a backslash, but a backslash in the pattern |
100 | can be removed by the matching engine, so we have to run it through | |
101 | globbing. */ | |
ccc6cda3 | 102 | case '\\': |
d233b485 CR |
103 | return (*string != 0); |
104 | ||
105 | case CTLESC: | |
ccc6cda3 JA |
106 | if (*string++ == '\0') |
107 | return (0); | |
108 | } | |
7117c2d2 JA |
109 | |
110 | /* Advance one fewer byte than an entire multibyte character to | |
111 | account for the auto-increment in the loop above. */ | |
112 | #ifdef HANDLE_MULTIBYTE | |
113 | string--; | |
114 | ADVANCE_CHAR_P (string, send - string); | |
115 | string++; | |
116 | #else | |
117 | ADVANCE_CHAR_P (string, send - string); | |
118 | #endif | |
ccc6cda3 JA |
119 | } |
120 | return (0); | |
121 | } | |
122 | ||
f1be666c JA |
123 | /* Return 1 if C is a character that is `special' in a POSIX ERE and needs to |
124 | be quoted to match itself. */ | |
125 | static inline int | |
126 | ere_char (c) | |
127 | int c; | |
128 | { | |
129 | switch (c) | |
130 | { | |
131 | case '.': | |
132 | case '[': | |
133 | case '\\': | |
134 | case '(': | |
135 | case ')': | |
136 | case '*': | |
137 | case '+': | |
138 | case '?': | |
139 | case '{': | |
140 | case '|': | |
141 | case '^': | |
142 | case '$': | |
143 | return 1; | |
144 | default: | |
145 | return 0; | |
146 | } | |
147 | return (0); | |
148 | } | |
149 | ||
3185942a JA |
150 | int |
151 | glob_char_p (s) | |
152 | const char *s; | |
153 | { | |
154 | switch (*s) | |
155 | { | |
156 | case '*': | |
157 | case '[': | |
158 | case ']': | |
159 | case '?': | |
160 | case '\\': | |
161 | return 1; | |
162 | case '+': | |
163 | case '@': | |
164 | case '!': | |
ac50fbac | 165 | if (s[1] == '(') /*(*/ |
3185942a JA |
166 | return 1; |
167 | break; | |
168 | } | |
169 | return 0; | |
170 | } | |
171 | ||
ccc6cda3 JA |
172 | /* PATHNAME can contain characters prefixed by CTLESC; this indicates |
173 | that the character is to be quoted. We quote it here in the style | |
cce855bc | 174 | that the glob library recognizes. If flags includes QGLOB_CVTNULL, |
ccc6cda3 JA |
175 | we change quoted null strings (pathname[0] == CTLNUL) into empty |
176 | strings (pathname[0] == 0). If this is called after quote removal | |
cce855bc | 177 | is performed, (flags & QGLOB_CVTNULL) should be 0; if called when quote |
ccc6cda3 | 178 | removal has not been done (for example, before attempting to match a |
cce855bc | 179 | pattern while executing a case statement), flags should include |
d233b485 CR |
180 | QGLOB_CVTNULL. If flags includes QGLOB_CTLESC, we need to remove CTLESC |
181 | quoting CTLESC or CTLNUL (as if dequote_string were called). If flags | |
182 | includes QGLOB_FILENAME, appropriate quoting to match a filename should be | |
183 | performed. QGLOB_REGEXP means we're quoting for a Posix ERE (for | |
184 | [[ string =~ pat ]]) and that requires some special handling. */ | |
ccc6cda3 | 185 | char * |
cce855bc | 186 | quote_string_for_globbing (pathname, qflags) |
28ef6c31 | 187 | const char *pathname; |
cce855bc | 188 | int qflags; |
ccc6cda3 JA |
189 | { |
190 | char *temp; | |
cce855bc | 191 | register int i, j; |
d233b485 | 192 | int cclass, collsym, equiv, c, last_was_backslash; |
a0c0a00f | 193 | int savei, savej; |
ccc6cda3 | 194 | |
ac50fbac | 195 | temp = (char *)xmalloc (2 * strlen (pathname) + 1); |
ccc6cda3 | 196 | |
cce855bc | 197 | if ((qflags & QGLOB_CVTNULL) && QUOTED_NULL (pathname)) |
ccc6cda3 JA |
198 | { |
199 | temp[0] = '\0'; | |
200 | return temp; | |
201 | } | |
202 | ||
d233b485 | 203 | cclass = collsym = equiv = last_was_backslash = 0; |
cce855bc | 204 | for (i = j = 0; pathname[i]; i++) |
ccc6cda3 | 205 | { |
ac50fbac CR |
206 | /* Fix for CTLESC at the end of the string? */ |
207 | if (pathname[i] == CTLESC && pathname[i+1] == '\0') | |
208 | { | |
209 | temp[j++] = pathname[i++]; | |
210 | break; | |
211 | } | |
212 | /* If we are parsing regexp, turn CTLESC CTLESC into CTLESC. It's not an | |
213 | ERE special character, so we should just be able to pass it through. */ | |
d233b485 | 214 | else if ((qflags & (QGLOB_REGEXP|QGLOB_CTLESC)) && pathname[i] == CTLESC && (pathname[i+1] == CTLESC || pathname[i+1] == CTLNUL)) |
ac50fbac CR |
215 | { |
216 | i++; | |
217 | temp[j++] = pathname[i]; | |
218 | continue; | |
219 | } | |
220 | else if (pathname[i] == CTLESC) | |
28ef6c31 JA |
221 | { |
222 | if ((qflags & QGLOB_FILENAME) && pathname[i+1] == '/') | |
223 | continue; | |
ac50fbac | 224 | /* What to do if preceding char is backslash? */ |
25db9a70 | 225 | if (pathname[i+1] != CTLESC && (qflags & QGLOB_REGEXP) && ere_char (pathname[i+1]) == 0) |
f1be666c | 226 | continue; |
cce855bc | 227 | temp[j++] = '\\'; |
7117c2d2 JA |
228 | i++; |
229 | if (pathname[i] == '\0') | |
230 | break; | |
28ef6c31 | 231 | } |
ac50fbac CR |
232 | else if ((qflags & QGLOB_REGEXP) && (i == 0 || pathname[i-1] != CTLESC) && pathname[i] == '[') /*]*/ |
233 | { | |
ac50fbac | 234 | temp[j++] = pathname[i++]; /* open bracket */ |
a0c0a00f CR |
235 | savej = j; |
236 | savei = i; | |
ac50fbac | 237 | c = pathname[i++]; /* c == char after open bracket */ |
d233b485 CR |
238 | if (c == '^') /* ignore pattern negation */ |
239 | { | |
240 | temp[j++] = c; | |
241 | c = pathname[i++]; | |
242 | } | |
243 | if (c == ']') /* ignore right bracket if first char */ | |
244 | { | |
245 | temp[j++] = c; | |
246 | c = pathname[i++]; | |
247 | } | |
ac50fbac CR |
248 | do |
249 | { | |
250 | if (c == 0) | |
251 | goto endpat; | |
252 | else if (c == CTLESC) | |
253 | { | |
254 | /* skip c, check for EOS, let assignment at end of loop */ | |
255 | /* pathname[i] == backslash-escaped character */ | |
256 | if (pathname[i] == 0) | |
257 | goto endpat; | |
258 | temp[j++] = pathname[i++]; | |
259 | } | |
260 | else if (c == '[' && pathname[i] == ':') | |
261 | { | |
262 | temp[j++] = c; | |
263 | temp[j++] = pathname[i++]; | |
264 | cclass = 1; | |
265 | } | |
266 | else if (cclass && c == ':' && pathname[i] == ']') | |
267 | { | |
268 | temp[j++] = c; | |
269 | temp[j++] = pathname[i++]; | |
270 | cclass = 0; | |
271 | } | |
272 | else if (c == '[' && pathname[i] == '=') | |
273 | { | |
274 | temp[j++] = c; | |
275 | temp[j++] = pathname[i++]; | |
276 | if (pathname[i] == ']') | |
277 | temp[j++] = pathname[i++]; /* right brack can be in equiv */ | |
278 | equiv = 1; | |
279 | } | |
280 | else if (equiv && c == '=' && pathname[i] == ']') | |
281 | { | |
282 | temp[j++] = c; | |
283 | temp[j++] = pathname[i++]; | |
284 | equiv = 0; | |
285 | } | |
286 | else if (c == '[' && pathname[i] == '.') | |
287 | { | |
288 | temp[j++] = c; | |
289 | temp[j++] = pathname[i++]; | |
290 | if (pathname[i] == ']') | |
291 | temp[j++] = pathname[i++]; /* right brack can be in collsym */ | |
292 | collsym = 1; | |
293 | } | |
294 | else if (collsym && c == '.' && pathname[i] == ']') | |
295 | { | |
296 | temp[j++] = c; | |
297 | temp[j++] = pathname[i++]; | |
298 | collsym = 0; | |
299 | } | |
300 | else | |
301 | temp[j++] = c; | |
302 | } | |
a0c0a00f CR |
303 | while (((c = pathname[i++]) != ']') && c != 0); |
304 | ||
305 | /* If we don't find the closing bracket before we hit the end of | |
306 | the string, rescan string without treating it as a bracket | |
307 | expression (has implications for backslash and special ERE | |
308 | chars) */ | |
309 | if (c == 0) | |
310 | { | |
311 | i = savei - 1; /* -1 for autoincrement above */ | |
312 | j = savej; | |
313 | continue; | |
314 | } | |
315 | ||
ac50fbac CR |
316 | temp[j++] = c; /* closing right bracket */ |
317 | i--; /* increment will happen above in loop */ | |
318 | continue; /* skip double assignment below */ | |
319 | } | |
320 | else if (pathname[i] == '\\' && (qflags & QGLOB_REGEXP) == 0) | |
3185942a | 321 | { |
ac50fbac CR |
322 | /* XXX - if not quoting regexp, use backslash as quote char. Should |
323 | we just pass it through without treating it as special? That is | |
324 | what ksh93 seems to do. */ | |
325 | ||
326 | /* If we want to pass through backslash unaltered, comment out these | |
327 | lines. */ | |
3185942a | 328 | temp[j++] = '\\'; |
ac50fbac | 329 | |
3185942a JA |
330 | i++; |
331 | if (pathname[i] == '\0') | |
332 | break; | |
d233b485 CR |
333 | /* If we are turning CTLESC CTLESC into CTLESC, we need to do that |
334 | even when the first CTLESC is preceded by a backslash. */ | |
335 | if ((qflags & QGLOB_CTLESC) && pathname[i] == CTLESC && (pathname[i+1] == CTLESC || pathname[i+1] == CTLNUL)) | |
336 | i++; /* skip over the CTLESC */ | |
3185942a | 337 | } |
ac50fbac CR |
338 | else if (pathname[i] == '\\' && (qflags & QGLOB_REGEXP)) |
339 | last_was_backslash = 1; | |
7117c2d2 | 340 | temp[j++] = pathname[i]; |
ccc6cda3 | 341 | } |
ac50fbac | 342 | endpat: |
cce855bc | 343 | temp[j] = '\0'; |
ccc6cda3 JA |
344 | |
345 | return (temp); | |
346 | } | |
347 | ||
348 | char * | |
349 | quote_globbing_chars (string) | |
a0c0a00f | 350 | const char *string; |
ccc6cda3 | 351 | { |
7117c2d2 | 352 | size_t slen; |
a0c0a00f CR |
353 | char *temp, *t; |
354 | const char *s, *send; | |
7117c2d2 JA |
355 | DECLARE_MBSTATE; |
356 | ||
357 | slen = strlen (string); | |
358 | send = string + slen; | |
ccc6cda3 | 359 | |
7117c2d2 | 360 | temp = (char *)xmalloc (slen * 2 + 1); |
ccc6cda3 JA |
361 | for (t = temp, s = string; *s; ) |
362 | { | |
3185942a JA |
363 | if (glob_char_p (s)) |
364 | *t++ = '\\'; | |
7117c2d2 JA |
365 | |
366 | /* Copy a single (possibly multibyte) character from s to t, | |
ac50fbac | 367 | incrementing both. */ |
7117c2d2 | 368 | COPY_CHAR_P (t, s, send); |
ccc6cda3 JA |
369 | } |
370 | *t = '\0'; | |
371 | return temp; | |
372 | } | |
373 | ||
374 | /* Call the glob library to do globbing on PATHNAME. */ | |
375 | char ** | |
376 | shell_glob_filename (pathname) | |
28ef6c31 | 377 | const char *pathname; |
ccc6cda3 JA |
378 | { |
379 | #if defined (USE_POSIX_GLOB_LIBRARY) | |
380 | register int i; | |
28ef6c31 | 381 | char *temp, **results; |
ccc6cda3 JA |
382 | glob_t filenames; |
383 | int glob_flags; | |
384 | ||
cce855bc | 385 | temp = quote_string_for_globbing (pathname, QGLOB_FILENAME); |
ccc6cda3 JA |
386 | |
387 | filenames.gl_offs = 0; | |
388 | ||
b72432fd | 389 | # if defined (GLOB_PERIOD) |
ccc6cda3 | 390 | glob_flags = glob_dot_filenames ? GLOB_PERIOD : 0; |
b72432fd JA |
391 | # else |
392 | glob_flags = 0; | |
393 | # endif /* !GLOB_PERIOD */ | |
394 | ||
ccc6cda3 JA |
395 | glob_flags |= (GLOB_ERR | GLOB_DOOFFS); |
396 | ||
f73dda09 | 397 | i = glob (temp, glob_flags, (posix_glob_errfunc_t *)NULL, &filenames); |
ccc6cda3 JA |
398 | |
399 | free (temp); | |
400 | ||
28ef6c31 | 401 | if (i == GLOB_NOSPACE || i == GLOB_ABORTED) |
ccc6cda3 | 402 | return ((char **)NULL); |
b72432fd JA |
403 | else if (i == GLOB_NOMATCH) |
404 | filenames.gl_pathv = (char **)NULL; | |
405 | else if (i != 0) /* other error codes not in POSIX.2 */ | |
cce855bc | 406 | filenames.gl_pathv = (char **)NULL; |
ccc6cda3 | 407 | |
bb70624e JA |
408 | results = filenames.gl_pathv; |
409 | ||
410 | if (results && ((GLOB_FAILED (results)) == 0)) | |
411 | { | |
412 | if (should_ignore_glob_matches ()) | |
413 | ignore_glob_matches (results); | |
414 | if (results && results[0]) | |
7117c2d2 | 415 | strvec_sort (results); |
bb70624e JA |
416 | else |
417 | { | |
418 | FREE (results); | |
419 | results = (char **)NULL; | |
420 | } | |
421 | } | |
422 | ||
423 | return (results); | |
ccc6cda3 JA |
424 | |
425 | #else /* !USE_POSIX_GLOB_LIBRARY */ | |
426 | ||
427 | char *temp, **results; | |
d233b485 | 428 | int gflags; |
ccc6cda3 JA |
429 | |
430 | noglob_dot_filenames = glob_dot_filenames == 0; | |
431 | ||
cce855bc | 432 | temp = quote_string_for_globbing (pathname, QGLOB_FILENAME); |
d233b485 CR |
433 | gflags = glob_star ? GX_GLOBSTAR : 0; |
434 | results = glob_filename (temp, gflags); | |
ccc6cda3 JA |
435 | free (temp); |
436 | ||
437 | if (results && ((GLOB_FAILED (results)) == 0)) | |
438 | { | |
439 | if (should_ignore_glob_matches ()) | |
440 | ignore_glob_matches (results); | |
441 | if (results && results[0]) | |
7117c2d2 | 442 | strvec_sort (results); |
ccc6cda3 JA |
443 | else |
444 | { | |
445 | FREE (results); | |
446 | results = (char **)&glob_error_return; | |
447 | } | |
448 | } | |
449 | ||
450 | return (results); | |
451 | #endif /* !USE_POSIX_GLOB_LIBRARY */ | |
452 | } | |
453 | ||
454 | /* Stuff for GLOBIGNORE. */ | |
455 | ||
456 | static struct ignorevar globignore = | |
457 | { | |
458 | "GLOBIGNORE", | |
459 | (struct ign *)0, | |
460 | 0, | |
461 | (char *)0, | |
f73dda09 | 462 | (sh_iv_item_func_t *)0, |
ccc6cda3 JA |
463 | }; |
464 | ||
465 | /* Set up to ignore some glob matches because the value of GLOBIGNORE | |
466 | has changed. If GLOBIGNORE is being unset, we also need to disable | |
467 | the globbing of filenames beginning with a `.'. */ | |
468 | void | |
469 | setup_glob_ignore (name) | |
470 | char *name; | |
471 | { | |
472 | char *v; | |
473 | ||
474 | v = get_string_value (name); | |
475 | setup_ignore_patterns (&globignore); | |
476 | ||
477 | if (globignore.num_ignores) | |
478 | glob_dot_filenames = 1; | |
479 | else if (v == 0) | |
480 | glob_dot_filenames = 0; | |
481 | } | |
482 | ||
483 | int | |
484 | should_ignore_glob_matches () | |
485 | { | |
486 | return globignore.num_ignores; | |
487 | } | |
488 | ||
489 | /* Return 0 if NAME matches a pattern in the globignore.ignores list. */ | |
490 | static int | |
491 | glob_name_is_acceptable (name) | |
f73dda09 | 492 | const char *name; |
ccc6cda3 JA |
493 | { |
494 | struct ign *p; | |
cce855bc | 495 | int flags; |
ccc6cda3 JA |
496 | |
497 | /* . and .. are never matched */ | |
498 | if (name[0] == '.' && (name[1] == '\0' || (name[1] == '.' && name[2] == '\0'))) | |
499 | return (0); | |
500 | ||
a0c0a00f | 501 | flags = FNM_PATHNAME | FNMATCH_EXTFLAG | FNMATCH_NOCASEGLOB; |
ccc6cda3 JA |
502 | for (p = globignore.ignores; p->val; p++) |
503 | { | |
f73dda09 | 504 | if (strmatch (p->val, (char *)name, flags) != FNM_NOMATCH) |
28ef6c31 | 505 | return (0); |
ccc6cda3 JA |
506 | } |
507 | return (1); | |
508 | } | |
509 | ||
510 | /* Internal function to test whether filenames in NAMES should be | |
511 | ignored. NAME_FUNC is a pointer to a function to call with each | |
512 | name. It returns non-zero if the name is acceptable to the particular | |
513 | ignore function which called _ignore_names; zero if the name should | |
514 | be removed from NAMES. */ | |
515 | ||
516 | static void | |
517 | ignore_globbed_names (names, name_func) | |
518 | char **names; | |
f73dda09 | 519 | sh_ignore_func_t *name_func; |
ccc6cda3 JA |
520 | { |
521 | char **newnames; | |
522 | int n, i; | |
523 | ||
524 | for (i = 0; names[i]; i++) | |
525 | ; | |
7117c2d2 | 526 | newnames = strvec_create (i + 1); |
ccc6cda3 JA |
527 | |
528 | for (n = i = 0; names[i]; i++) | |
529 | { | |
530 | if ((*name_func) (names[i])) | |
28ef6c31 | 531 | newnames[n++] = names[i]; |
ccc6cda3 JA |
532 | else |
533 | free (names[i]); | |
534 | } | |
535 | ||
536 | newnames[n] = (char *)NULL; | |
537 | ||
538 | if (n == 0) | |
539 | { | |
540 | names[0] = (char *)NULL; | |
541 | free (newnames); | |
542 | return; | |
543 | } | |
544 | ||
545 | /* Copy the acceptable names from NEWNAMES back to NAMES and set the | |
546 | new array end. */ | |
547 | for (n = 0; newnames[n]; n++) | |
548 | names[n] = newnames[n]; | |
549 | names[n] = (char *)NULL; | |
d166f048 | 550 | free (newnames); |
ccc6cda3 JA |
551 | } |
552 | ||
553 | void | |
554 | ignore_glob_matches (names) | |
555 | char **names; | |
556 | { | |
557 | if (globignore.num_ignores == 0) | |
558 | return; | |
559 | ||
560 | ignore_globbed_names (names, glob_name_is_acceptable); | |
561 | } | |
562 | ||
495aee44 CR |
563 | static char * |
564 | split_ignorespec (s, ip) | |
565 | char *s; | |
566 | int *ip; | |
567 | { | |
568 | char *t; | |
569 | int n, i; | |
570 | ||
571 | if (s == 0) | |
572 | return 0; | |
573 | ||
574 | i = *ip; | |
575 | if (s[i] == 0) | |
576 | return 0; | |
577 | ||
a0c0a00f | 578 | n = skip_to_delim (s, i, ":", SD_NOJMP|SD_EXTGLOB|SD_GLOB); |
495aee44 CR |
579 | t = substring (s, i, n); |
580 | ||
581 | if (s[n] == ':') | |
582 | n++; | |
583 | *ip = n; | |
584 | return t; | |
585 | } | |
586 | ||
ccc6cda3 JA |
587 | void |
588 | setup_ignore_patterns (ivp) | |
589 | struct ignorevar *ivp; | |
590 | { | |
591 | int numitems, maxitems, ptr; | |
592 | char *colon_bit, *this_ignoreval; | |
593 | struct ign *p; | |
594 | ||
595 | this_ignoreval = get_string_value (ivp->varname); | |
596 | ||
597 | /* If nothing has changed then just exit now. */ | |
598 | if ((this_ignoreval && ivp->last_ignoreval && STREQ (this_ignoreval, ivp->last_ignoreval)) || | |
599 | (!this_ignoreval && !ivp->last_ignoreval)) | |
600 | return; | |
601 | ||
602 | /* Oops. The ignore variable has changed. Re-parse it. */ | |
603 | ivp->num_ignores = 0; | |
604 | ||
605 | if (ivp->ignores) | |
606 | { | |
607 | for (p = ivp->ignores; p->val; p++) | |
608 | free(p->val); | |
609 | free (ivp->ignores); | |
610 | ivp->ignores = (struct ign *)NULL; | |
611 | } | |
612 | ||
613 | if (ivp->last_ignoreval) | |
614 | { | |
615 | free (ivp->last_ignoreval); | |
616 | ivp->last_ignoreval = (char *)NULL; | |
617 | } | |
618 | ||
619 | if (this_ignoreval == 0 || *this_ignoreval == '\0') | |
620 | return; | |
621 | ||
622 | ivp->last_ignoreval = savestring (this_ignoreval); | |
623 | ||
624 | numitems = maxitems = ptr = 0; | |
625 | ||
495aee44 | 626 | #if 0 |
ccc6cda3 | 627 | while (colon_bit = extract_colon_unit (this_ignoreval, &ptr)) |
495aee44 CR |
628 | #else |
629 | while (colon_bit = split_ignorespec (this_ignoreval, &ptr)) | |
630 | #endif | |
ccc6cda3 JA |
631 | { |
632 | if (numitems + 1 >= maxitems) | |
633 | { | |
634 | maxitems += 10; | |
635 | ivp->ignores = (struct ign *)xrealloc (ivp->ignores, maxitems * sizeof (struct ign)); | |
636 | } | |
637 | ivp->ignores[numitems].val = colon_bit; | |
638 | ivp->ignores[numitems].len = strlen (colon_bit); | |
639 | ivp->ignores[numitems].flags = 0; | |
640 | if (ivp->item_func) | |
28ef6c31 | 641 | (*ivp->item_func) (&ivp->ignores[numitems]); |
ccc6cda3 JA |
642 | numitems++; |
643 | } | |
644 | ivp->ignores[numitems].val = (char *)NULL; | |
645 | ivp->num_ignores = numitems; | |
646 | } |