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Commit | Line | Data |
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e78998df MS |
1 | /* |
2 | * "$Id$" | |
3 | * | |
4 | * Option marking routines for the Common UNIX Printing System (CUPS). | |
5 | * | |
c168a833 | 6 | * Copyright 2007-2009 by Apple Inc. |
e78998df MS |
7 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
8 | * | |
9 | * These coded instructions, statements, and computer programs are the | |
10 | * property of Apple Inc. and are protected by Federal copyright | |
11 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
12 | * which should have been included with this file. If this file is | |
13 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
14 | * | |
15 | * PostScript is a trademark of Adobe Systems, Inc. | |
16 | * | |
17 | * This file is subject to the Apple OS-Developed Software exception. | |
18 | * | |
19 | * Contents: | |
20 | * | |
d2354e63 MS |
21 | * cupsGetConflicts() - Get a list of conflicting options in a marked |
22 | * PPD. | |
06d4e77b | 23 | * cupsResolveConflicts() - Resolve conflicts in a marked PPD. |
e78998df MS |
24 | * ppdConflicts() - Check to see if there are any conflicts among |
25 | * the marked option choices. | |
26 | * ppdInstallableConflict() - Test whether an option choice conflicts with an | |
27 | * installable option. | |
e78998df MS |
28 | * ppd_is_installable() - Determine whether an option is in the |
29 | * InstallableOptions group. | |
30 | * ppd_load_constraints() - Load constraints from a PPD file. | |
31 | * ppd_test_constraints() - See if any constraints are active. | |
32 | */ | |
33 | ||
34 | /* | |
35 | * Include necessary headers... | |
36 | */ | |
37 | ||
38 | #include "ppd-private.h" | |
39 | #include "string.h" | |
40 | #include "debug.h" | |
41 | ||
42 | ||
43 | /* | |
44 | * Local constants... | |
45 | */ | |
46 | ||
47 | enum | |
48 | { | |
49 | _PPD_NORMAL_CONSTRAINTS, | |
50 | _PPD_INSTALLABLE_CONSTRAINTS, | |
51 | _PPD_ALL_CONSTRAINTS | |
52 | }; | |
53 | ||
54 | ||
55 | /* | |
56 | * Local functions... | |
57 | */ | |
58 | ||
59 | static int ppd_is_installable(ppd_group_t *installable, | |
60 | const char *option); | |
61 | static void ppd_load_constraints(ppd_file_t *ppd); | |
06d4e77b MS |
62 | static cups_array_t *ppd_test_constraints(ppd_file_t *ppd, |
63 | const char *option, | |
64 | const char *choice, | |
65 | int num_options, | |
e78998df MS |
66 | cups_option_t *options, |
67 | int which); | |
68 | ||
69 | ||
d2354e63 MS |
70 | /* |
71 | * 'cupsGetConflicts()' - Get a list of conflicting options in a marked PPD. | |
72 | * | |
73 | * This function gets a list of options that would conflict if "option" and | |
74 | * "choice" were marked in the PPD. You would typically call this function | |
75 | * after marking the currently selected options in the PPD in order to | |
76 | * determine whether a new option selection would cause a conflict. | |
77 | * | |
78 | * The number of conflicting options are returned with "options" pointing to | |
79 | * the conflicting options. The returned option array must be freed using | |
80 | * @link cupsFreeOptions@. | |
81 | * | |
82 | * @since CUPS 1.4@ | |
83 | */ | |
84 | ||
85 | int /* O - Number of conflicting options */ | |
86 | cupsGetConflicts( | |
87 | ppd_file_t *ppd, /* I - PPD file */ | |
88 | const char *option, /* I - Option to test */ | |
89 | const char *choice, /* I - Choice to test */ | |
90 | cups_option_t **options) /* O - Conflicting options */ | |
91 | { | |
92 | int i, /* Looping var */ | |
93 | num_options; /* Number of conflicting options */ | |
94 | cups_array_t *active; /* Active conflicts */ | |
95 | _ppd_cups_uiconsts_t *c; /* Current constraints */ | |
96 | _ppd_cups_uiconst_t *cptr; /* Current constraint */ | |
97 | ||
98 | ||
99 | /* | |
100 | * Range check input... | |
101 | */ | |
102 | ||
103 | if (options) | |
104 | *options = NULL; | |
105 | ||
106 | if (!ppd || !option || !choice || !options) | |
107 | return (0); | |
108 | ||
109 | /* | |
110 | * Test for conflicts... | |
111 | */ | |
112 | ||
113 | active = ppd_test_constraints(ppd, option, choice, 0, NULL, | |
114 | _PPD_ALL_CONSTRAINTS); | |
115 | ||
116 | /* | |
117 | * Loop through all of the UI constraints and add any options that conflict... | |
118 | */ | |
119 | ||
120 | for (num_options = 0, c = (_ppd_cups_uiconsts_t *)cupsArrayFirst(active); | |
121 | c; | |
122 | c = (_ppd_cups_uiconsts_t *)cupsArrayNext(active)) | |
123 | { | |
124 | for (i = c->num_constraints, cptr = c->constraints; | |
125 | i > 0; | |
126 | i --, cptr ++) | |
127 | if (strcasecmp(cptr->option->keyword, option)) | |
128 | num_options = cupsAddOption(cptr->option->keyword, cptr->choice->choice, | |
129 | num_options, options); | |
130 | } | |
131 | ||
132 | cupsArrayDelete(active); | |
133 | ||
134 | return (num_options); | |
135 | } | |
136 | ||
137 | ||
e78998df MS |
138 | /* |
139 | * 'cupsResolveConflicts()' - Resolve conflicts in a marked PPD. | |
140 | * | |
141 | * This function attempts to resolve any conflicts in a marked PPD, returning | |
06d4e77b MS |
142 | * a list of option changes that are required to resolve them. On input, |
143 | * "num_options" and "options" contain any pending option changes that have | |
144 | * not yet been marked, while "option" and "choice" contain the most recent | |
e78998df MS |
145 | * selection which may or may not be in "num_options" or "options". |
146 | * | |
147 | * On successful return, "num_options" and "options" are updated to contain | |
148 | * "option" and "choice" along with any changes required to resolve conflicts | |
06d4e77b MS |
149 | * specified in the PPD file and 1 is returned. |
150 | * | |
151 | * If option conflicts cannot be resolved, "num_options" and "options" are not | |
152 | * changed and 0 is returned. | |
e78998df | 153 | * |
06d4e77b MS |
154 | * When resolving conflicts, @code cupsResolveConflicts@ does not consider |
155 | * changes to the current page size (@code media@, @code PageSize@, and | |
156 | * @code PageRegion@) or to the most recent option specified in "option". | |
157 | * Thus, if the only way to resolve a conflict is to change the page size | |
158 | * or the option the user most recently changed, @code cupsResolveConflicts@ | |
159 | * will return 0 to indicate it was unable to resolve the conflicts. | |
160 | * | |
161 | * The @code cupsResolveConflicts@ function uses one of two sources of option | |
162 | * constraint information. The preferred constraint information is defined by | |
e78998df | 163 | * @code cupsUIConstraints@ and @code cupsUIResolver@ attributes - in this |
06d4e77b | 164 | * case, the PPD file provides constraint resolution actions. |
e78998df | 165 | * |
06d4e77b | 166 | * The backup constraint information is defined by the |
e78998df | 167 | * @code UIConstraints@ and @code NonUIConstraints@ attributes. These |
06d4e77b MS |
168 | * constraints are resolved algorithmically by first selecting the default |
169 | * choice for the conflicting option, then iterating over all possible choices | |
170 | * until a non-conflicting option choice is found. | |
e78998df MS |
171 | * |
172 | * @since CUPS 1.4@ | |
173 | */ | |
174 | ||
175 | int /* O - 1 on success, 0 on failure */ | |
176 | cupsResolveConflicts( | |
177 | ppd_file_t *ppd, /* I - PPD file */ | |
178 | const char *option, /* I - Newly selected option or @code NULL@ for none */ | |
179 | const char *choice, /* I - Newly selected choice or @code NULL@ for none */ | |
180 | int *num_options, /* IO - Number of additional selected options */ | |
181 | cups_option_t **options) /* IO - Additional selected options */ | |
182 | { | |
183 | int i, /* Looping var */ | |
1340db2d MS |
184 | num_newopts; /* Number of new options */ |
185 | cups_option_t *newopts; /* New options */ | |
e78998df MS |
186 | cups_array_t *active, /* Active constraints */ |
187 | *pass, /* Resolvers for this pass */ | |
1340db2d MS |
188 | *resolvers, /* Resolvers we have used */ |
189 | *test; /* Test array for conflicts */ | |
e78998df MS |
190 | _ppd_cups_uiconsts_t *consts; /* Current constraints */ |
191 | _ppd_cups_uiconst_t *constptr; /* Current constraint */ | |
192 | ppd_attr_t *resolver; /* Current resolver */ | |
1340db2d MS |
193 | const char *resval; /* Pointer into resolver value */ |
194 | char resoption[PPD_MAX_NAME], | |
195 | /* Current resolver option */ | |
196 | reschoice[PPD_MAX_NAME], | |
197 | /* Current resolver choice */ | |
198 | *resptr; /* Pointer into option/choice */ | |
e78998df MS |
199 | const char *value; /* Selected option value */ |
200 | int changed; /* Did we change anything? */ | |
201 | ppd_choice_t *marked; /* Marked choice */ | |
e78998df MS |
202 | |
203 | ||
204 | /* | |
205 | * Range check input... | |
206 | */ | |
207 | ||
208 | if (!ppd || !num_options || !options || (option == NULL) != (choice == NULL)) | |
209 | return (0); | |
210 | ||
211 | /* | |
212 | * Build a shadow option array... | |
213 | */ | |
214 | ||
215 | num_newopts = 0; | |
216 | newopts = NULL; | |
217 | ||
218 | for (i = 0; i < *num_options; i ++) | |
219 | num_newopts = cupsAddOption((*options)[i].name, (*options)[i].value, | |
220 | num_newopts, &newopts); | |
005dd1eb | 221 | if (option && strcasecmp(option, "Collate")) |
e78998df MS |
222 | num_newopts = cupsAddOption(option, choice, num_newopts, &newopts); |
223 | ||
224 | /* | |
225 | * Loop until we have no conflicts... | |
226 | */ | |
227 | ||
228 | cupsArraySave(ppd->sorted_attrs); | |
229 | ||
230 | resolvers = NULL; | |
231 | pass = cupsArrayNew((cups_array_func_t)strcasecmp, NULL); | |
232 | ||
06d4e77b | 233 | while ((active = ppd_test_constraints(ppd, NULL, NULL, num_newopts, newopts, |
e78998df MS |
234 | _PPD_ALL_CONSTRAINTS)) != NULL) |
235 | { | |
236 | if (!resolvers) | |
237 | resolvers = cupsArrayNew((cups_array_func_t)strcasecmp, NULL); | |
238 | ||
239 | for (consts = (_ppd_cups_uiconsts_t *)cupsArrayFirst(active), changed = 0; | |
240 | consts; | |
241 | consts = (_ppd_cups_uiconsts_t *)cupsArrayNext(active)) | |
242 | { | |
243 | if (consts->resolver[0]) | |
244 | { | |
245 | /* | |
246 | * Look up the resolver... | |
247 | */ | |
248 | ||
249 | if (cupsArrayFind(pass, consts->resolver)) | |
250 | continue; /* Already applied this resolver... */ | |
251 | ||
252 | if (cupsArrayFind(resolvers, consts->resolver)) | |
253 | { | |
254 | /* | |
255 | * Resolver loop! | |
256 | */ | |
257 | ||
258 | DEBUG_printf(("ppdResolveConflicts: Resolver loop with %s!\n", | |
259 | consts->resolver)); | |
260 | goto error; | |
261 | } | |
262 | ||
263 | if ((resolver = ppdFindAttr(ppd, "cupsUIResolver", | |
264 | consts->resolver)) == NULL) | |
265 | { | |
266 | DEBUG_printf(("ppdResolveConflicts: Resolver %s not found!\n", | |
267 | consts->resolver)); | |
268 | goto error; | |
269 | } | |
270 | ||
271 | if (!resolver->value) | |
272 | { | |
273 | DEBUG_printf(("ppdResolveConflicts: Resolver %s has no value!\n", | |
274 | consts->resolver)); | |
275 | goto error; | |
276 | } | |
277 | ||
278 | /* | |
279 | * Add the options from the resolver... | |
280 | */ | |
281 | ||
282 | cupsArrayAdd(pass, consts->resolver); | |
283 | cupsArrayAdd(resolvers, consts->resolver); | |
284 | ||
1340db2d | 285 | for (resval = resolver->value; *resval && !changed;) |
06d4e77b | 286 | { |
1340db2d MS |
287 | while (isspace(*resval & 255)) |
288 | resval ++; | |
06d4e77b | 289 | |
1340db2d MS |
290 | if (*resval != '*') |
291 | break; | |
292 | ||
293 | for (resval ++, resptr = resoption; | |
294 | *resval && !isspace(*resval & 255); | |
295 | resval ++) | |
296 | if (resptr < (resoption + sizeof(resoption) - 1)) | |
297 | *resptr++ = *resval; | |
298 | ||
299 | *resptr = '\0'; | |
300 | ||
301 | while (isspace(*resval & 255)) | |
302 | resval ++; | |
303 | ||
304 | for (resptr = reschoice; | |
305 | *resval && !isspace(*resval & 255); | |
306 | resval ++) | |
307 | if (resptr < (reschoice + sizeof(reschoice) - 1)) | |
308 | *resptr++ = *resval; | |
309 | ||
310 | *resptr = '\0'; | |
311 | ||
312 | if (!resoption[0] || !reschoice[0]) | |
313 | break; | |
314 | ||
315 | /* | |
316 | * Is this the option we are changing? | |
317 | */ | |
318 | ||
319 | if (option && | |
320 | (!strcasecmp(resoption, option) || | |
321 | (!strcasecmp(option, "PageSize") && | |
322 | !strcasecmp(resoption, "PageRegion")) || | |
323 | (!strcasecmp(option, "PageRegion") && | |
324 | !strcasecmp(resoption, "PageSize")))) | |
325 | continue; | |
326 | ||
327 | /* | |
328 | * Try this choice... | |
329 | */ | |
330 | ||
331 | if ((test = ppd_test_constraints(ppd, resoption, reschoice, | |
332 | num_newopts, newopts, | |
333 | _PPD_ALL_CONSTRAINTS)) == NULL) | |
06d4e77b | 334 | { |
1340db2d MS |
335 | /* |
336 | * That worked... | |
337 | */ | |
06d4e77b | 338 | |
1340db2d MS |
339 | changed = 1; |
340 | } | |
341 | else | |
342 | cupsArrayDelete(test); | |
06d4e77b | 343 | |
1340db2d MS |
344 | /* |
345 | * Add the option/choice from the resolver regardless of whether it | |
346 | * worked; this makes sure that we can cascade several changes to | |
347 | * make things resolve... | |
348 | */ | |
349 | ||
350 | num_newopts = cupsAddOption(resoption, reschoice, num_newopts, | |
351 | &newopts); | |
352 | } | |
e78998df MS |
353 | } |
354 | else | |
355 | { | |
356 | /* | |
357 | * Try resolving by choosing the default values for non-installable | |
06d4e77b | 358 | * options, then by iterating through the possible choices... |
e78998df MS |
359 | */ |
360 | ||
06d4e77b MS |
361 | int j; /* Looping var */ |
362 | ppd_choice_t *cptr; /* Current choice */ | |
d1c13e16 | 363 | ppd_size_t *size; /* Current page size */ |
06d4e77b MS |
364 | |
365 | ||
366 | for (i = consts->num_constraints, constptr = consts->constraints; | |
c168a833 | 367 | i > 0 && !changed; |
e78998df MS |
368 | i --, constptr ++) |
369 | { | |
c168a833 MS |
370 | /* |
371 | * Can't resolve by changing an installable option... | |
372 | */ | |
373 | ||
374 | if (constptr->installable) | |
e78998df MS |
375 | continue; |
376 | ||
c168a833 MS |
377 | /* |
378 | * Is this the option we are changing? | |
379 | */ | |
380 | ||
d1c13e16 MS |
381 | if (option && |
382 | (!strcasecmp(constptr->option->keyword, option) || | |
383 | (!strcasecmp(option, "PageSize") && | |
384 | !strcasecmp(constptr->option->keyword, "PageRegion")) || | |
385 | (!strcasecmp(option, "PageRegion") && | |
386 | !strcasecmp(constptr->option->keyword, "PageSize")))) | |
e78998df | 387 | continue; |
e78998df | 388 | |
c168a833 MS |
389 | /* |
390 | * Get the current option choice... | |
391 | */ | |
392 | ||
e78998df MS |
393 | if ((value = cupsGetOption(constptr->option->keyword, num_newopts, |
394 | newopts)) == NULL) | |
395 | { | |
d1c13e16 MS |
396 | if (!strcasecmp(constptr->option->keyword, "PageSize") || |
397 | !strcasecmp(constptr->option->keyword, "PageRegion")) | |
398 | { | |
399 | if ((value = cupsGetOption("PageSize", num_newopts, | |
400 | newopts)) == NULL) | |
401 | value = cupsGetOption("PageRegion", num_newopts, newopts); | |
402 | ||
403 | if (!value) | |
404 | { | |
405 | if ((size = ppdPageSize(ppd, NULL)) != NULL) | |
406 | value = size->name; | |
407 | else | |
408 | value = ""; | |
409 | } | |
410 | } | |
411 | else | |
412 | { | |
413 | marked = ppdFindMarkedChoice(ppd, constptr->option->keyword); | |
414 | value = marked ? marked->choice : ""; | |
415 | } | |
e78998df MS |
416 | } |
417 | ||
d1c13e16 MS |
418 | if (!strncasecmp(value, "Custom.", 7)) |
419 | value = "Custom"; | |
420 | ||
06d4e77b MS |
421 | /* |
422 | * Try the default choice... | |
e78998df MS |
423 | */ |
424 | ||
06d4e77b | 425 | test = NULL; |
e78998df | 426 | |
06d4e77b MS |
427 | if (strcasecmp(value, constptr->option->defchoice) && |
428 | (test = ppd_test_constraints(ppd, constptr->option->keyword, | |
429 | constptr->option->defchoice, | |
430 | num_newopts, newopts, | |
431 | _PPD_ALL_CONSTRAINTS)) == NULL) | |
e78998df | 432 | { |
06d4e77b MS |
433 | /* |
434 | * That worked... | |
435 | */ | |
436 | ||
437 | num_newopts = cupsAddOption(constptr->option->keyword, | |
438 | constptr->option->defchoice, | |
e78998df MS |
439 | num_newopts, &newopts); |
440 | changed = 1; | |
441 | } | |
06d4e77b MS |
442 | else |
443 | { | |
444 | /* | |
445 | * Try each choice instead... | |
446 | */ | |
447 | ||
06d4e77b MS |
448 | for (j = constptr->option->num_choices, |
449 | cptr = constptr->option->choices; | |
450 | j > 0; | |
451 | j --, cptr ++) | |
452 | { | |
c168a833 | 453 | cupsArrayDelete(test); |
06d4e77b MS |
454 | test = NULL; |
455 | ||
456 | if (strcasecmp(value, cptr->choice) && | |
457 | strcasecmp(constptr->option->defchoice, cptr->choice) && | |
d1c13e16 | 458 | strcasecmp("Custom", cptr->choice) && |
06d4e77b MS |
459 | (test = ppd_test_constraints(ppd, constptr->option->keyword, |
460 | cptr->choice, num_newopts, | |
461 | newopts, | |
462 | _PPD_ALL_CONSTRAINTS)) == NULL) | |
463 | { | |
464 | /* | |
465 | * This choice works... | |
466 | */ | |
467 | ||
468 | num_newopts = cupsAddOption(constptr->option->keyword, | |
469 | cptr->choice, num_newopts, | |
470 | &newopts); | |
471 | changed = 1; | |
472 | break; | |
473 | } | |
06d4e77b | 474 | } |
c168a833 MS |
475 | |
476 | cupsArrayDelete(test); | |
06d4e77b MS |
477 | } |
478 | } | |
e78998df MS |
479 | } |
480 | ||
481 | if (!changed) | |
482 | { | |
483 | DEBUG_puts("ppdResolveConflicts: Unable to automatically resolve " | |
484 | "constraint!"); | |
485 | goto error; | |
486 | } | |
487 | } | |
488 | ||
489 | cupsArrayClear(pass); | |
490 | cupsArrayDelete(active); | |
491 | } | |
492 | ||
493 | /* | |
005dd1eb | 494 | * Free the caller's option array... |
e78998df MS |
495 | */ |
496 | ||
005dd1eb MS |
497 | cupsFreeOptions(*num_options, *options); |
498 | ||
499 | /* | |
500 | * If Collate is the option we are testing, add it here. Otherwise, remove | |
501 | * any Collate option from the resolve list since the filters automatically | |
502 | * handle manual collation... | |
503 | */ | |
504 | ||
505 | if (option && !strcasecmp(option, "Collate")) | |
506 | num_newopts = cupsAddOption(option, choice, num_newopts, &newopts); | |
e78998df | 507 | else |
005dd1eb MS |
508 | num_newopts = cupsRemoveOption("Collate", num_newopts, &newopts); |
509 | ||
510 | /* | |
511 | * Return the new list of options to the caller... | |
512 | */ | |
513 | ||
514 | *num_options = num_newopts; | |
515 | *options = newopts; | |
e78998df MS |
516 | |
517 | cupsArrayDelete(pass); | |
518 | cupsArrayDelete(resolvers); | |
519 | ||
520 | cupsArrayRestore(ppd->sorted_attrs); | |
521 | ||
d1c13e16 MS |
522 | DEBUG_printf(("cupsResolveConflicts: Returning %d options:", num_newopts)); |
523 | #ifdef DEBUG | |
524 | for (i = 0; i < num_newopts; i ++) | |
525 | DEBUG_printf(("cupsResolveConflicts: options[%d]: %s=%s", i, | |
526 | newopts[i].name, newopts[i].value)); | |
527 | #endif /* DEBUG */ | |
528 | ||
e78998df MS |
529 | return (1); |
530 | ||
531 | /* | |
532 | * If we get here, we failed to resolve... | |
533 | */ | |
534 | ||
535 | error: | |
536 | ||
537 | cupsFreeOptions(num_newopts, newopts); | |
538 | ||
539 | cupsArrayDelete(pass); | |
540 | cupsArrayDelete(resolvers); | |
541 | ||
542 | cupsArrayRestore(ppd->sorted_attrs); | |
543 | ||
d1c13e16 MS |
544 | DEBUG_puts("cupsResolveConflicts: Unable to resolve conflicts!"); |
545 | ||
e78998df MS |
546 | return (0); |
547 | } | |
548 | ||
549 | ||
06d4e77b MS |
550 | /* |
551 | * 'ppdConflicts()' - Check to see if there are any conflicts among the | |
552 | * marked option choices. | |
553 | * | |
554 | * The returned value is the same as returned by @link ppdMarkOption@. | |
555 | */ | |
556 | ||
557 | int /* O - Number of conflicts found */ | |
558 | ppdConflicts(ppd_file_t *ppd) /* I - PPD to check */ | |
559 | { | |
560 | int i, /* Looping variable */ | |
561 | conflicts; /* Number of conflicts */ | |
562 | cups_array_t *active; /* Active conflicts */ | |
563 | _ppd_cups_uiconsts_t *c; /* Current constraints */ | |
564 | _ppd_cups_uiconst_t *cptr; /* Current constraint */ | |
565 | ppd_option_t *o; /* Current option */ | |
566 | ||
567 | ||
568 | if (!ppd) | |
569 | return (0); | |
570 | ||
571 | /* | |
572 | * Clear all conflicts... | |
573 | */ | |
574 | ||
575 | for (o = ppdFirstOption(ppd); o; o = ppdNextOption(ppd)) | |
576 | o->conflicted = 0; | |
577 | ||
578 | /* | |
579 | * Test for conflicts... | |
580 | */ | |
581 | ||
582 | active = ppd_test_constraints(ppd, NULL, NULL, 0, NULL, | |
583 | _PPD_ALL_CONSTRAINTS); | |
584 | conflicts = cupsArrayCount(active); | |
585 | ||
586 | /* | |
587 | * Loop through all of the UI constraints and flag any options | |
588 | * that conflict... | |
589 | */ | |
590 | ||
591 | for (c = (_ppd_cups_uiconsts_t *)cupsArrayFirst(active); | |
592 | c; | |
593 | c = (_ppd_cups_uiconsts_t *)cupsArrayNext(active)) | |
594 | { | |
595 | for (i = c->num_constraints, cptr = c->constraints; | |
596 | i > 0; | |
597 | i --, cptr ++) | |
598 | cptr->option->conflicted = 1; | |
599 | } | |
600 | ||
601 | cupsArrayDelete(active); | |
602 | ||
603 | /* | |
604 | * Return the number of conflicts found... | |
605 | */ | |
606 | ||
607 | return (conflicts); | |
608 | } | |
609 | ||
610 | ||
611 | /* | |
612 | * 'ppdInstallableConflict()' - Test whether an option choice conflicts with | |
613 | * an installable option. | |
614 | * | |
615 | * This function tests whether a particular option choice is available based | |
616 | * on constraints against options in the "InstallableOptions" group. | |
617 | * | |
618 | * @since CUPS 1.4@ | |
619 | */ | |
620 | ||
621 | int /* O - 1 if conflicting, 0 if not conflicting */ | |
622 | ppdInstallableConflict( | |
623 | ppd_file_t *ppd, /* I - PPD file */ | |
624 | const char *option, /* I - Option */ | |
625 | const char *choice) /* I - Choice */ | |
626 | { | |
627 | cups_array_t *active; /* Active conflicts */ | |
628 | ||
629 | ||
630 | /* | |
631 | * Range check input... | |
632 | */ | |
633 | ||
634 | if (!ppd || !option || !choice) | |
635 | return (0); | |
636 | ||
637 | /* | |
638 | * Test constraints using the new option... | |
639 | */ | |
640 | ||
641 | active = ppd_test_constraints(ppd, option, choice, 0, NULL, | |
642 | _PPD_INSTALLABLE_CONSTRAINTS); | |
643 | ||
644 | cupsArrayDelete(active); | |
645 | ||
646 | return (active != NULL); | |
647 | } | |
648 | ||
649 | ||
e78998df MS |
650 | /* |
651 | * 'ppd_is_installable()' - Determine whether an option is in the | |
652 | * InstallableOptions group. | |
653 | */ | |
654 | ||
655 | static int /* O - 1 if installable, 0 if normal */ | |
656 | ppd_is_installable( | |
657 | ppd_group_t *installable, /* I - InstallableOptions group */ | |
658 | const char *name) /* I - Option name */ | |
659 | { | |
660 | if (installable) | |
661 | { | |
662 | int i; /* Looping var */ | |
663 | ppd_option_t *option; /* Current option */ | |
664 | ||
665 | ||
666 | for (i = installable->num_options, option = installable->options; | |
667 | i > 0; | |
668 | i --, option ++) | |
669 | if (!strcasecmp(option->keyword, name)) | |
670 | return (1); | |
671 | } | |
672 | ||
673 | return (0); | |
674 | } | |
675 | ||
676 | ||
677 | /* | |
678 | * 'ppd_load_constraints()' - Load constraints from a PPD file. | |
679 | */ | |
680 | ||
681 | static void | |
682 | ppd_load_constraints(ppd_file_t *ppd) /* I - PPD file */ | |
683 | { | |
684 | int i; /* Looping var */ | |
685 | ppd_const_t *oldconst; /* Current UIConstraints data */ | |
686 | ppd_attr_t *constattr; /* Current cupsUIConstraints attribute */ | |
687 | _ppd_cups_uiconsts_t *consts; /* Current cupsUIConstraints data */ | |
688 | _ppd_cups_uiconst_t *constptr; /* Current constraint */ | |
689 | ppd_group_t *installable; /* Installable options group */ | |
690 | const char *vptr; /* Pointer into constraint value */ | |
691 | char option[PPD_MAX_NAME], /* Option name/MainKeyword */ | |
692 | choice[PPD_MAX_NAME], /* Choice/OptionKeyword */ | |
693 | *ptr; /* Pointer into option or choice */ | |
694 | ||
695 | ||
696 | /* | |
697 | * Create an array to hold the constraint data... | |
698 | */ | |
699 | ||
700 | ppd->cups_uiconstraints = cupsArrayNew(NULL, NULL); | |
701 | ||
702 | /* | |
703 | * Find the installable options group if it exists... | |
704 | */ | |
705 | ||
706 | for (i = ppd->num_groups, installable = ppd->groups; | |
707 | i > 0; | |
708 | i --, installable ++) | |
709 | if (!strcasecmp(installable->name, "InstallableOptions")) | |
710 | break; | |
711 | ||
712 | if (i <= 0) | |
713 | installable = NULL; | |
714 | ||
715 | /* | |
28b9d139 | 716 | * Load old-style [Non]UIConstraints data... |
e78998df MS |
717 | */ |
718 | ||
28b9d139 | 719 | for (i = ppd->num_consts, oldconst = ppd->consts; i > 0; i --, oldconst ++) |
e78998df MS |
720 | { |
721 | /* | |
28b9d139 MS |
722 | * Weed out nearby duplicates, since the PPD spec requires that you |
723 | * define both "*Foo foo *Bar bar" and "*Bar bar *Foo foo"... | |
e78998df MS |
724 | */ |
725 | ||
28b9d139 MS |
726 | if (i > 1 && |
727 | !strcasecmp(oldconst[0].option1, oldconst[1].option2) && | |
728 | !strcasecmp(oldconst[0].choice1, oldconst[1].choice2) && | |
729 | !strcasecmp(oldconst[0].option2, oldconst[1].option1) && | |
730 | !strcasecmp(oldconst[0].choice2, oldconst[1].choice1)) | |
731 | continue; | |
e78998df | 732 | |
28b9d139 MS |
733 | /* |
734 | * Allocate memory... | |
735 | */ | |
e78998df | 736 | |
28b9d139 MS |
737 | if ((consts = calloc(1, sizeof(_ppd_cups_uiconsts_t))) == NULL) |
738 | { | |
739 | DEBUG_puts("ppd_load_constraints: Unable to allocate memory for " | |
740 | "UIConstraints!"); | |
741 | return; | |
742 | } | |
e78998df | 743 | |
28b9d139 MS |
744 | if ((constptr = calloc(2, sizeof(_ppd_cups_uiconst_t))) == NULL) |
745 | { | |
746 | free(consts); | |
747 | DEBUG_puts("ppd_load_constraints: Unable to allocate memory for " | |
748 | "UIConstraints!"); | |
749 | return; | |
750 | } | |
e78998df | 751 | |
28b9d139 MS |
752 | /* |
753 | * Fill in the information... | |
754 | */ | |
e78998df | 755 | |
28b9d139 MS |
756 | consts->num_constraints = 2; |
757 | consts->constraints = constptr; | |
e78998df | 758 | |
28b9d139 MS |
759 | if (!strncasecmp(oldconst->option1, "Custom", 6) && |
760 | !strcasecmp(oldconst->choice1, "True")) | |
761 | { | |
762 | constptr[0].option = ppdFindOption(ppd, oldconst->option1 + 6); | |
763 | constptr[0].choice = ppdFindChoice(constptr[0].option, "Custom"); | |
764 | constptr[0].installable = 0; | |
765 | } | |
766 | else | |
767 | { | |
768 | constptr[0].option = ppdFindOption(ppd, oldconst->option1); | |
769 | constptr[0].choice = ppdFindChoice(constptr[0].option, | |
770 | oldconst->choice1); | |
771 | constptr[0].installable = ppd_is_installable(installable, | |
772 | oldconst->option1); | |
773 | } | |
e78998df | 774 | |
28b9d139 MS |
775 | if (!constptr[0].option || (!constptr[0].choice && oldconst->choice1[0])) |
776 | { | |
777 | DEBUG_printf(("ppd_load_constraints: Unknown option *%s %s!\n", | |
778 | oldconst->option1, oldconst->choice1)); | |
779 | free(consts->constraints); | |
780 | free(consts); | |
781 | continue; | |
782 | } | |
e78998df | 783 | |
28b9d139 MS |
784 | if (!strncasecmp(oldconst->option2, "Custom", 6) && |
785 | !strcasecmp(oldconst->choice2, "True")) | |
786 | { | |
787 | constptr[1].option = ppdFindOption(ppd, oldconst->option2 + 6); | |
788 | constptr[1].choice = ppdFindChoice(constptr[1].option, "Custom"); | |
789 | constptr[1].installable = 0; | |
790 | } | |
791 | else | |
792 | { | |
793 | constptr[1].option = ppdFindOption(ppd, oldconst->option2); | |
794 | constptr[1].choice = ppdFindChoice(constptr[1].option, | |
795 | oldconst->choice2); | |
796 | constptr[1].installable = ppd_is_installable(installable, | |
797 | oldconst->option2); | |
798 | } | |
e78998df | 799 | |
28b9d139 MS |
800 | if (!constptr[1].option || (!constptr[1].choice && oldconst->choice2[0])) |
801 | { | |
802 | DEBUG_printf(("ppd_load_constraints: Unknown option *%s %s!\n", | |
803 | oldconst->option2, oldconst->choice2)); | |
804 | free(consts->constraints); | |
805 | free(consts); | |
806 | continue; | |
807 | } | |
e78998df | 808 | |
28b9d139 | 809 | consts->installable = constptr[0].installable || constptr[1].installable; |
e78998df | 810 | |
28b9d139 MS |
811 | /* |
812 | * Add it to the constraints array... | |
813 | */ | |
e78998df | 814 | |
28b9d139 MS |
815 | cupsArrayAdd(ppd->cups_uiconstraints, consts); |
816 | } | |
e78998df | 817 | |
28b9d139 MS |
818 | /* |
819 | * Then load new-style constraints... | |
820 | */ | |
e78998df | 821 | |
28b9d139 MS |
822 | for (constattr = ppdFindAttr(ppd, "cupsUIConstraints", NULL); |
823 | constattr; | |
824 | constattr = ppdFindNextAttr(ppd, "cupsUIConstraints", NULL)) | |
825 | { | |
826 | if (!constattr->value) | |
827 | { | |
828 | DEBUG_puts("ppd_load_constraints: Bad cupsUIConstraints value!"); | |
829 | continue; | |
830 | } | |
e78998df | 831 | |
28b9d139 MS |
832 | for (i = 0, vptr = strchr(constattr->value, '*'); |
833 | vptr; | |
834 | i ++, vptr = strchr(vptr + 1, '*')); | |
e78998df | 835 | |
28b9d139 MS |
836 | if (i == 0) |
837 | { | |
838 | DEBUG_puts("ppd_load_constraints: Bad cupsUIConstraints value!"); | |
839 | continue; | |
e78998df | 840 | } |
e78998df | 841 | |
28b9d139 | 842 | if ((consts = calloc(1, sizeof(_ppd_cups_uiconsts_t))) == NULL) |
e78998df | 843 | { |
28b9d139 MS |
844 | DEBUG_puts("ppd_load_constraints: Unable to allocate memory for " |
845 | "cupsUIConstraints!"); | |
846 | return; | |
847 | } | |
e78998df | 848 | |
28b9d139 MS |
849 | if ((constptr = calloc(i, sizeof(_ppd_cups_uiconst_t))) == NULL) |
850 | { | |
851 | free(consts); | |
852 | DEBUG_puts("ppd_load_constraints: Unable to allocate memory for " | |
853 | "cupsUIConstraints!"); | |
854 | return; | |
855 | } | |
e78998df | 856 | |
28b9d139 MS |
857 | consts->num_constraints = i; |
858 | consts->constraints = constptr; | |
e78998df | 859 | |
28b9d139 | 860 | strlcpy(consts->resolver, constattr->spec, sizeof(consts->resolver)); |
e78998df | 861 | |
28b9d139 MS |
862 | for (i = 0, vptr = strchr(constattr->value, '*'); |
863 | vptr; | |
864 | i ++, vptr = strchr(vptr, '*'), constptr ++) | |
865 | { | |
e78998df | 866 | /* |
28b9d139 | 867 | * Extract "*Option Choice" or just "*Option"... |
e78998df MS |
868 | */ |
869 | ||
28b9d139 MS |
870 | for (vptr ++, ptr = option; *vptr && !isspace(*vptr & 255); vptr ++) |
871 | if (ptr < (option + sizeof(option) - 1)) | |
872 | *ptr++ = *vptr; | |
e78998df | 873 | |
28b9d139 | 874 | *ptr = '\0'; |
e78998df | 875 | |
28b9d139 MS |
876 | while (isspace(*vptr & 255)) |
877 | vptr ++; | |
e78998df | 878 | |
28b9d139 MS |
879 | if (*vptr == '*') |
880 | choice[0] = '\0'; | |
e78998df MS |
881 | else |
882 | { | |
28b9d139 MS |
883 | for (ptr = choice; *vptr && !isspace(*vptr & 255); vptr ++) |
884 | if (ptr < (choice + sizeof(choice) - 1)) | |
885 | *ptr++ = *vptr; | |
886 | ||
887 | *ptr = '\0'; | |
e78998df MS |
888 | } |
889 | ||
28b9d139 | 890 | if (!strncasecmp(option, "Custom", 6) && !strcasecmp(choice, "True")) |
e78998df | 891 | { |
28b9d139 MS |
892 | _cups_strcpy(option, option + 6); |
893 | strcpy(choice, "Custom"); | |
e78998df MS |
894 | } |
895 | ||
28b9d139 MS |
896 | constptr->option = ppdFindOption(ppd, option); |
897 | constptr->choice = ppdFindChoice(constptr->option, choice); | |
898 | constptr->installable = ppd_is_installable(installable, option); | |
899 | consts->installable |= constptr->installable; | |
e78998df | 900 | |
28b9d139 MS |
901 | if (!constptr->option || (!constptr->choice && choice[0])) |
902 | { | |
903 | DEBUG_printf(("ppd_load_constraints: Unknown option *%s %s!\n", | |
904 | option, choice)); | |
905 | break; | |
906 | } | |
907 | } | |
e78998df | 908 | |
28b9d139 | 909 | if (!vptr) |
e78998df | 910 | cupsArrayAdd(ppd->cups_uiconstraints, consts); |
28b9d139 MS |
911 | else |
912 | { | |
913 | free(consts->constraints); | |
914 | free(consts); | |
e78998df MS |
915 | } |
916 | } | |
917 | } | |
918 | ||
919 | ||
e78998df MS |
920 | /* |
921 | * 'ppd_test_constraints()' - See if any constraints are active. | |
922 | */ | |
923 | ||
924 | static cups_array_t * /* O - Array of active constraints */ | |
925 | ppd_test_constraints( | |
926 | ppd_file_t *ppd, /* I - PPD file */ | |
06d4e77b MS |
927 | const char *option, /* I - Current option */ |
928 | const char *choice, /* I - Current choice */ | |
e78998df MS |
929 | int num_options, /* I - Number of additional options */ |
930 | cups_option_t *options, /* I - Additional options */ | |
931 | int which) /* I - Which constraints to test */ | |
932 | { | |
933 | int i; /* Looping var */ | |
934 | _ppd_cups_uiconsts_t *consts; /* Current constraints */ | |
935 | _ppd_cups_uiconst_t *constptr; /* Current constraint */ | |
936 | ppd_choice_t key, /* Search key */ | |
937 | *marked; /* Marked choice */ | |
938 | cups_array_t *active = NULL; /* Active constraints */ | |
939 | const char *value; /* Current value */ | |
06d4e77b | 940 | |
e78998df | 941 | |
06d4e77b MS |
942 | DEBUG_printf(("ppd_test_constraints(ppd=%p, num_options=%d, options=%p, " |
943 | "which=%d)\n", ppd, num_options, options, which)); | |
e78998df MS |
944 | |
945 | if (!ppd->cups_uiconstraints) | |
946 | ppd_load_constraints(ppd); | |
947 | ||
06d4e77b MS |
948 | DEBUG_printf(("ppd_test_constraints: %d constraints!\n", |
949 | cupsArrayCount(ppd->cups_uiconstraints))); | |
950 | ||
e78998df MS |
951 | cupsArraySave(ppd->marked); |
952 | ||
953 | for (consts = (_ppd_cups_uiconsts_t *)cupsArrayFirst(ppd->cups_uiconstraints); | |
954 | consts; | |
955 | consts = (_ppd_cups_uiconsts_t *)cupsArrayNext(ppd->cups_uiconstraints)) | |
956 | { | |
06d4e77b MS |
957 | DEBUG_printf(("ppd_test_constraints: installable=%d, resolver=\"%s\", " |
958 | "num_constraints=%d option1=\"%s\", choice1=\"%s\", " | |
959 | "option2=\"%s\", choice2=\"%s\", ...\n", | |
960 | consts->installable, consts->resolver, consts->num_constraints, | |
961 | consts->constraints[0].option->keyword, | |
962 | consts->constraints[0].choice ? | |
963 | consts->constraints[0].choice->choice : "", | |
964 | consts->constraints[1].option->keyword, | |
965 | consts->constraints[1].choice ? | |
966 | consts->constraints[1].choice->choice : "")); | |
967 | ||
e78998df MS |
968 | if (which != _PPD_ALL_CONSTRAINTS && which != consts->installable) |
969 | continue; | |
970 | ||
06d4e77b MS |
971 | DEBUG_puts("ppd_test_constraints: Testing..."); |
972 | ||
d1c13e16 | 973 | for (i = consts->num_constraints, constptr = consts->constraints; |
e78998df MS |
974 | i > 0; |
975 | i --, constptr ++) | |
976 | { | |
06d4e77b MS |
977 | DEBUG_printf(("ppd_test_constraints: %s=%s?\n", constptr->option->keyword, |
978 | constptr->choice ? constptr->choice->choice : "")); | |
979 | ||
e78998df MS |
980 | if (constptr->choice && |
981 | (!strcasecmp(constptr->option->keyword, "PageSize") || | |
982 | !strcasecmp(constptr->option->keyword, "PageRegion"))) | |
983 | { | |
984 | /* | |
985 | * PageSize and PageRegion are used depending on the selected input slot | |
986 | * and manual feed mode. Validate against the selected page size instead | |
987 | * of an individual option... | |
988 | */ | |
989 | ||
06d4e77b MS |
990 | if (option && choice && |
991 | (!strcasecmp(option, "PageSize") || | |
992 | !strcasecmp(option, "PageRegion"))) | |
993 | { | |
994 | value = choice; | |
06d4e77b MS |
995 | } |
996 | else if ((value = cupsGetOption("PageSize", num_options, | |
997 | options)) == NULL) | |
e78998df MS |
998 | if ((value = cupsGetOption("PageRegion", num_options, |
999 | options)) == NULL) | |
1000 | if ((value = cupsGetOption("media", num_options, options)) == NULL) | |
1001 | { | |
1002 | ppd_size_t *size = ppdPageSize(ppd, NULL); | |
1003 | ||
1004 | if (size) | |
1005 | value = size->name; | |
1006 | } | |
1007 | ||
d1c13e16 MS |
1008 | if (value && !strncasecmp(value, "Custom.", 7)) |
1009 | value = "Custom"; | |
1010 | ||
e78998df | 1011 | if (!value || strcasecmp(value, constptr->choice->choice)) |
06d4e77b MS |
1012 | { |
1013 | DEBUG_puts("ppd_test_constraints: NO"); | |
e78998df | 1014 | break; |
06d4e77b | 1015 | } |
e78998df MS |
1016 | } |
1017 | else if (constptr->choice) | |
1018 | { | |
06d4e77b MS |
1019 | if (option && choice && !strcasecmp(option, constptr->option->keyword)) |
1020 | { | |
d1c13e16 MS |
1021 | if (!strncasecmp(choice, "Custom.", 7)) |
1022 | value = "Custom"; | |
1023 | else | |
1024 | value = choice; | |
06d4e77b | 1025 | |
d1c13e16 MS |
1026 | if (strcasecmp(value, constptr->choice->choice)) |
1027 | { | |
1028 | DEBUG_puts("ppd_test_constraints: NO"); | |
1029 | break; | |
1030 | } | |
06d4e77b MS |
1031 | } |
1032 | else if ((value = cupsGetOption(constptr->option->keyword, num_options, | |
1033 | options)) != NULL) | |
e78998df | 1034 | { |
d1c13e16 MS |
1035 | if (!strncasecmp(value, "Custom.", 7)) |
1036 | value = "Custom"; | |
1037 | ||
e78998df | 1038 | if (strcasecmp(value, constptr->choice->choice)) |
06d4e77b MS |
1039 | { |
1040 | DEBUG_puts("ppd_test_constraints: NO"); | |
e78998df | 1041 | break; |
06d4e77b | 1042 | } |
e78998df MS |
1043 | } |
1044 | else if (!constptr->choice->marked) | |
06d4e77b MS |
1045 | { |
1046 | DEBUG_puts("ppd_test_constraints: NO"); | |
1047 | break; | |
1048 | } | |
1049 | } | |
1050 | else if (option && choice && | |
1051 | !strcasecmp(option, constptr->option->keyword)) | |
1052 | { | |
1053 | if (!strcasecmp(choice, "None") || !strcasecmp(choice, "Off") || | |
1054 | !strcasecmp(choice, "False")) | |
d1c13e16 MS |
1055 | { |
1056 | DEBUG_puts("ppd_test_constraints: NO"); | |
e78998df | 1057 | break; |
d1c13e16 | 1058 | } |
e78998df MS |
1059 | } |
1060 | else if ((value = cupsGetOption(constptr->option->keyword, num_options, | |
1061 | options)) != NULL) | |
1062 | { | |
1063 | if (!strcasecmp(value, "None") || !strcasecmp(value, "Off") || | |
1064 | !strcasecmp(value, "False")) | |
06d4e77b MS |
1065 | { |
1066 | DEBUG_puts("ppd_test_constraints: NO"); | |
1067 | break; | |
1068 | } | |
e78998df MS |
1069 | } |
1070 | else | |
1071 | { | |
1072 | key.option = constptr->option; | |
1073 | ||
1074 | if ((marked = (ppd_choice_t *)cupsArrayFind(ppd->marked, &key)) | |
1340db2d | 1075 | == NULL || |
e78998df MS |
1076 | (!strcasecmp(marked->choice, "None") || |
1077 | !strcasecmp(marked->choice, "Off") || | |
1078 | !strcasecmp(marked->choice, "False"))) | |
06d4e77b MS |
1079 | { |
1080 | DEBUG_puts("ppd_test_constraints: NO"); | |
e78998df | 1081 | break; |
06d4e77b | 1082 | } |
e78998df MS |
1083 | } |
1084 | } | |
1085 | ||
d1c13e16 | 1086 | if (i <= 0) |
e78998df MS |
1087 | { |
1088 | if (!active) | |
1089 | active = cupsArrayNew(NULL, NULL); | |
1090 | ||
1091 | cupsArrayAdd(active, consts); | |
06d4e77b | 1092 | DEBUG_puts("ppd_test_constraints: Added..."); |
e78998df MS |
1093 | } |
1094 | } | |
1095 | ||
1096 | cupsArrayRestore(ppd->marked); | |
1097 | ||
06d4e77b MS |
1098 | DEBUG_printf(("ppd_test_constraints: Found %d active constraints!\n", |
1099 | cupsArrayCount(active))); | |
1100 | ||
e78998df MS |
1101 | return (active); |
1102 | } | |
1103 | ||
1104 | ||
1105 | /* | |
1106 | * End of "$Id$". | |
1107 | */ |