|
428
|
1 /* Specifier implementation
|
|
|
2 Copyright (C) 1994, 1995 Board of Trustees, University of Illinois.
|
|
2953
|
3 Copyright (C) 1995, 1996, 2002, 2005 Ben Wing.
|
|
428
|
4 Copyright (C) 1995 Sun Microsystems, Inc.
|
|
|
5
|
|
|
6 This file is part of XEmacs.
|
|
|
7
|
|
|
8 XEmacs is free software; you can redistribute it and/or modify it
|
|
|
9 under the terms of the GNU General Public License as published by the
|
|
|
10 Free Software Foundation; either version 2, or (at your option) any
|
|
|
11 later version.
|
|
|
12
|
|
|
13 XEmacs is distributed in the hope that it will be useful, but WITHOUT
|
|
|
14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
|
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
|
16 for more details.
|
|
|
17
|
|
|
18 You should have received a copy of the GNU General Public License
|
|
|
19 along with XEmacs; see the file COPYING. If not, write to
|
|
|
20 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
|
21 Boston, MA 02111-1307, USA. */
|
|
|
22
|
|
|
23 /* Synched up with: Not in FSF. */
|
|
|
24
|
|
|
25 /* Design by Ben Wing;
|
|
2953
|
26 Written by Ben Wing based on prototype for 19.12 by Chuck Thompson.
|
|
|
27 Magic specifiers by Kirill Katsnelson.
|
|
428
|
28 */
|
|
|
29
|
|
|
30 #include <config.h>
|
|
|
31 #include "lisp.h"
|
|
|
32
|
|
|
33 #include "buffer.h"
|
|
800
|
34 #include "chartab.h"
|
|
872
|
35 #include "device-impl.h"
|
|
428
|
36 #include "frame.h"
|
|
800
|
37 #include "glyphs.h"
|
|
428
|
38 #include "opaque.h"
|
|
800
|
39 #include "rangetab.h"
|
|
428
|
40 #include "specifier.h"
|
|
|
41 #include "window.h"
|
|
|
42
|
|
|
43 Lisp_Object Qspecifierp;
|
|
442
|
44 Lisp_Object Qremove_tag_set_prepend, Qremove_tag_set_append;
|
|
|
45 Lisp_Object Qremove_locale, Qremove_locale_type;
|
|
428
|
46
|
|
|
47 Lisp_Object Qconsole_type, Qdevice_class;
|
|
|
48
|
|
|
49 static Lisp_Object Vuser_defined_tags;
|
|
|
50
|
|
|
51 typedef struct specifier_type_entry specifier_type_entry;
|
|
|
52 struct specifier_type_entry
|
|
|
53 {
|
|
|
54 Lisp_Object symbol;
|
|
|
55 struct specifier_methods *meths;
|
|
|
56 };
|
|
|
57
|
|
|
58 typedef struct
|
|
|
59 {
|
|
|
60 Dynarr_declare (specifier_type_entry);
|
|
|
61 } specifier_type_entry_dynarr;
|
|
|
62
|
|
|
63 static specifier_type_entry_dynarr *the_specifier_type_entry_dynarr;
|
|
|
64
|
|
1204
|
65 static const struct memory_description ste_description_1[] = {
|
|
440
|
66 { XD_LISP_OBJECT, offsetof (specifier_type_entry, symbol) },
|
|
2367
|
67 { XD_BLOCK_PTR, offsetof (specifier_type_entry, meths), 1,
|
|
2551
|
68 { &specifier_methods_description } },
|
|
428
|
69 { XD_END }
|
|
|
70 };
|
|
|
71
|
|
1204
|
72 static const struct sized_memory_description ste_description = {
|
|
440
|
73 sizeof (specifier_type_entry),
|
|
428
|
74 ste_description_1
|
|
|
75 };
|
|
|
76
|
|
1204
|
77 static const struct memory_description sted_description_1[] = {
|
|
440
|
78 XD_DYNARR_DESC (specifier_type_entry_dynarr, &ste_description),
|
|
428
|
79 { XD_END }
|
|
|
80 };
|
|
|
81
|
|
1204
|
82 static const struct sized_memory_description sted_description = {
|
|
440
|
83 sizeof (specifier_type_entry_dynarr),
|
|
428
|
84 sted_description_1
|
|
|
85 };
|
|
|
86
|
|
|
87 static Lisp_Object Vspecifier_type_list;
|
|
|
88
|
|
|
89 static Lisp_Object Vcached_specifiers;
|
|
|
90 /* Do NOT mark through this, or specifiers will never be GC'd. */
|
|
|
91 static Lisp_Object Vall_specifiers;
|
|
|
92
|
|
|
93 static Lisp_Object Vunlock_ghost_specifiers;
|
|
|
94
|
|
|
95 /* #### The purpose of this is to check for inheritance loops
|
|
|
96 in specifiers that can inherit from other specifiers, but it's
|
|
|
97 not yet implemented.
|
|
|
98
|
|
|
99 #### Look into this for 19.14. */
|
|
|
100 /* static Lisp_Object_dynarr current_specifiers; */
|
|
|
101
|
|
|
102 static void recompute_cached_specifier_everywhere (Lisp_Object specifier);
|
|
|
103
|
|
|
104 EXFUN (Fspecifier_specs, 4);
|
|
|
105 EXFUN (Fremove_specifier, 4);
|
|
|
106
|
|
|
107
|
|
|
108 /************************************************************************/
|
|
|
109 /* Specifier object methods */
|
|
|
110 /************************************************************************/
|
|
|
111
|
|
|
112 /* Remove dead objects from the specified assoc list. */
|
|
|
113
|
|
|
114 static Lisp_Object
|
|
|
115 cleanup_assoc_list (Lisp_Object list)
|
|
|
116 {
|
|
|
117 Lisp_Object loop, prev, retval;
|
|
|
118
|
|
|
119 loop = retval = list;
|
|
|
120 prev = Qnil;
|
|
|
121
|
|
|
122 while (!NILP (loop))
|
|
|
123 {
|
|
|
124 Lisp_Object entry = XCAR (loop);
|
|
|
125 Lisp_Object key = XCAR (entry);
|
|
|
126
|
|
|
127 /* remember, dead windows can become alive again. */
|
|
|
128 if (!WINDOWP (key) && object_dead_p (key))
|
|
|
129 {
|
|
|
130 if (NILP (prev))
|
|
|
131 {
|
|
|
132 /* Removing the head. */
|
|
|
133 retval = XCDR (retval);
|
|
|
134 }
|
|
|
135 else
|
|
|
136 {
|
|
|
137 Fsetcdr (prev, XCDR (loop));
|
|
|
138 }
|
|
|
139 }
|
|
|
140 else
|
|
|
141 prev = loop;
|
|
|
142
|
|
|
143 loop = XCDR (loop);
|
|
|
144 }
|
|
|
145
|
|
|
146 return retval;
|
|
|
147 }
|
|
|
148
|
|
|
149 /* Remove dead objects from the various lists so that they
|
|
|
150 don't keep getting marked as long as this specifier exists and
|
|
|
151 therefore wasting memory. */
|
|
|
152
|
|
|
153 void
|
|
|
154 cleanup_specifiers (void)
|
|
|
155 {
|
|
|
156 Lisp_Object rest;
|
|
|
157
|
|
|
158 for (rest = Vall_specifiers;
|
|
|
159 !NILP (rest);
|
|
|
160 rest = XSPECIFIER (rest)->next_specifier)
|
|
|
161 {
|
|
440
|
162 Lisp_Specifier *sp = XSPECIFIER (rest);
|
|
428
|
163 /* This effectively changes the specifier specs.
|
|
|
164 However, there's no need to call
|
|
|
165 recompute_cached_specifier_everywhere() or the
|
|
|
166 after-change methods because the only specs we
|
|
|
167 are removing are for dead objects, and they can
|
|
|
168 never have any effect on the specifier values:
|
|
|
169 specifiers can only be instantiated over live
|
|
|
170 objects, and you can't derive a dead object
|
|
|
171 from a live one. */
|
|
|
172 sp->device_specs = cleanup_assoc_list (sp->device_specs);
|
|
|
173 sp->frame_specs = cleanup_assoc_list (sp->frame_specs);
|
|
|
174 sp->buffer_specs = cleanup_assoc_list (sp->buffer_specs);
|
|
|
175 /* windows are handled specially because dead windows
|
|
|
176 can be resurrected */
|
|
|
177 }
|
|
|
178 }
|
|
|
179
|
|
|
180 void
|
|
|
181 kill_specifier_buffer_locals (Lisp_Object buffer)
|
|
|
182 {
|
|
|
183 Lisp_Object rest;
|
|
|
184
|
|
|
185 for (rest = Vall_specifiers;
|
|
|
186 !NILP (rest);
|
|
|
187 rest = XSPECIFIER (rest)->next_specifier)
|
|
|
188 {
|
|
440
|
189 Lisp_Specifier *sp = XSPECIFIER (rest);
|
|
428
|
190
|
|
|
191 /* Make sure we're actually going to be changing something.
|
|
|
192 Fremove_specifier() always calls
|
|
|
193 recompute_cached_specifier_everywhere() (#### but should
|
|
|
194 be smarter about this). */
|
|
|
195 if (!NILP (assq_no_quit (buffer, sp->buffer_specs)))
|
|
|
196 Fremove_specifier (rest, buffer, Qnil, Qnil);
|
|
|
197 }
|
|
|
198 }
|
|
|
199
|
|
|
200 static Lisp_Object
|
|
|
201 mark_specifier (Lisp_Object obj)
|
|
|
202 {
|
|
440
|
203 Lisp_Specifier *specifier = XSPECIFIER (obj);
|
|
428
|
204
|
|
|
205 mark_object (specifier->global_specs);
|
|
|
206 mark_object (specifier->device_specs);
|
|
|
207 mark_object (specifier->frame_specs);
|
|
|
208 mark_object (specifier->window_specs);
|
|
|
209 mark_object (specifier->buffer_specs);
|
|
|
210 mark_object (specifier->magic_parent);
|
|
|
211 mark_object (specifier->fallback);
|
|
|
212 if (!GHOST_SPECIFIER_P (XSPECIFIER (obj)))
|
|
|
213 MAYBE_SPECMETH (specifier, mark, (obj));
|
|
|
214 return Qnil;
|
|
|
215 }
|
|
|
216
|
|
|
217 /* The idea here is that the specifier specs point to locales
|
|
|
218 (windows, buffers, frames, and devices), and we want to make sure
|
|
|
219 that the specs disappear automatically when the associated locale
|
|
|
220 is no longer in use. For all but windows, "no longer in use"
|
|
|
221 corresponds exactly to when the object is deleted (non-deleted
|
|
|
222 objects are always held permanently in special lists, and deleted
|
|
|
223 objects are never on these lists and never reusable). To handle
|
|
|
224 this, we just have cleanup_specifiers() called periodically
|
|
|
225 (at the beginning of garbage collection); it removes all dead
|
|
|
226 objects.
|
|
|
227
|
|
|
228 For windows, however, it's trickier because dead objects can be
|
|
|
229 converted to live ones again if the dead object is in a window
|
|
|
230 configuration. Therefore, for windows, "no longer in use"
|
|
|
231 corresponds to when the window object is garbage-collected.
|
|
|
232 We now use weak lists for this purpose.
|
|
|
233
|
|
|
234 */
|
|
|
235
|
|
|
236 void
|
|
|
237 prune_specifiers (void)
|
|
|
238 {
|
|
|
239 Lisp_Object rest, prev = Qnil;
|
|
|
240
|
|
|
241 for (rest = Vall_specifiers;
|
|
|
242 !NILP (rest);
|
|
|
243 rest = XSPECIFIER (rest)->next_specifier)
|
|
|
244 {
|
|
|
245 if (! marked_p (rest))
|
|
|
246 {
|
|
440
|
247 Lisp_Specifier* sp = XSPECIFIER (rest);
|
|
428
|
248 /* A bit of assertion that we're removing both parts of the
|
|
|
249 magic one altogether */
|
|
|
250 assert (!MAGIC_SPECIFIER_P(sp)
|
|
|
251 || (BODILY_SPECIFIER_P(sp) && marked_p (sp->fallback))
|
|
|
252 || (GHOST_SPECIFIER_P(sp) && marked_p (sp->magic_parent)));
|
|
|
253 /* This specifier is garbage. Remove it from the list. */
|
|
|
254 if (NILP (prev))
|
|
|
255 Vall_specifiers = sp->next_specifier;
|
|
|
256 else
|
|
|
257 XSPECIFIER (prev)->next_specifier = sp->next_specifier;
|
|
|
258 }
|
|
|
259 else
|
|
|
260 prev = rest;
|
|
|
261 }
|
|
|
262 }
|
|
|
263
|
|
|
264 static void
|
|
2286
|
265 print_specifier (Lisp_Object obj, Lisp_Object printcharfun,
|
|
|
266 int UNUSED (escapeflag))
|
|
428
|
267 {
|
|
440
|
268 Lisp_Specifier *sp = XSPECIFIER (obj);
|
|
428
|
269 int count = specpdl_depth ();
|
|
|
270 Lisp_Object the_specs;
|
|
|
271
|
|
|
272 if (print_readably)
|
|
563
|
273 printing_unreadable_object ("#<%s-specifier 0x%x>",
|
|
|
274 sp->methods->name, sp->header.uid);
|
|
428
|
275
|
|
800
|
276 write_fmt_string (printcharfun, "#<%s-specifier global=", sp->methods->name);
|
|
872
|
277 #if 0
|
|
|
278 /* #### Not obvious this is useful, and overrides user settings; if we
|
|
|
279 resurrect this, create variables like `print-specifier-length' so it
|
|
|
280 can be controlled. */
|
|
428
|
281 specbind (Qprint_string_length, make_int (100));
|
|
|
282 specbind (Qprint_length, make_int (5));
|
|
872
|
283 #endif
|
|
428
|
284 the_specs = Fspecifier_specs (obj, Qglobal, Qnil, Qnil);
|
|
|
285 if (NILP (the_specs))
|
|
|
286 /* there are no global specs */
|
|
826
|
287 write_c_string (printcharfun, "<unspecified>");
|
|
428
|
288 else
|
|
|
289 print_internal (the_specs, printcharfun, 1);
|
|
|
290 if (!NILP (sp->fallback))
|
|
|
291 {
|
|
800
|
292 write_fmt_string_lisp (printcharfun, " fallback=%S", 1, sp->fallback);
|
|
428
|
293 }
|
|
771
|
294 unbind_to (count);
|
|
800
|
295 write_fmt_string (printcharfun, " 0x%x>", sp->header.uid);
|
|
428
|
296 }
|
|
|
297
|
|
|
298 static void
|
|
|
299 finalize_specifier (void *header, int for_disksave)
|
|
|
300 {
|
|
440
|
301 Lisp_Specifier *sp = (Lisp_Specifier *) header;
|
|
428
|
302 /* don't be snafued by the disksave finalization. */
|
|
|
303 if (!for_disksave && !GHOST_SPECIFIER_P(sp) && sp->caching)
|
|
|
304 {
|
|
3092
|
305 #ifdef NEW_GC
|
|
|
306 mc_free (sp->caching);
|
|
|
307 #else /* not NEW_GC */
|
|
1726
|
308 xfree (sp->caching, struct specifier_caching *);
|
|
3092
|
309 #endif /* not NEW_GC */
|
|
428
|
310 sp->caching = 0;
|
|
|
311 }
|
|
|
312 }
|
|
|
313
|
|
|
314 static int
|
|
|
315 specifier_equal (Lisp_Object obj1, Lisp_Object obj2, int depth)
|
|
|
316 {
|
|
440
|
317 Lisp_Specifier *s1 = XSPECIFIER (obj1);
|
|
|
318 Lisp_Specifier *s2 = XSPECIFIER (obj2);
|
|
428
|
319 int retval;
|
|
|
320 Lisp_Object old_inhibit_quit = Vinhibit_quit;
|
|
|
321
|
|
|
322 /* This function can be called from within redisplay.
|
|
|
323 internal_equal can trigger a quit. That leads to Bad Things. */
|
|
|
324 Vinhibit_quit = Qt;
|
|
|
325
|
|
|
326 depth++;
|
|
|
327 retval =
|
|
|
328 (s1->methods == s2->methods &&
|
|
|
329 internal_equal (s1->global_specs, s2->global_specs, depth) &&
|
|
|
330 internal_equal (s1->device_specs, s2->device_specs, depth) &&
|
|
|
331 internal_equal (s1->frame_specs, s2->frame_specs, depth) &&
|
|
|
332 internal_equal (s1->window_specs, s2->window_specs, depth) &&
|
|
|
333 internal_equal (s1->buffer_specs, s2->buffer_specs, depth) &&
|
|
|
334 internal_equal (s1->fallback, s2->fallback, depth));
|
|
|
335
|
|
|
336 if (retval && HAS_SPECMETH_P (s1, equal))
|
|
|
337 retval = SPECMETH (s1, equal, (obj1, obj2, depth - 1));
|
|
|
338
|
|
|
339 Vinhibit_quit = old_inhibit_quit;
|
|
|
340 return retval;
|
|
|
341 }
|
|
|
342
|
|
2515
|
343 static Hashcode
|
|
428
|
344 specifier_hash (Lisp_Object obj, int depth)
|
|
|
345 {
|
|
440
|
346 Lisp_Specifier *s = XSPECIFIER (obj);
|
|
428
|
347
|
|
|
348 /* specifier hashing is a bit problematic because there are so
|
|
|
349 many places where data can be stored. We pick what are perhaps
|
|
|
350 the most likely places where interesting stuff will be. */
|
|
|
351 return HASH5 ((HAS_SPECMETH_P (s, hash) ?
|
|
|
352 SPECMETH (s, hash, (obj, depth)) : 0),
|
|
2515
|
353 (Hashcode) s->methods,
|
|
428
|
354 internal_hash (s->global_specs, depth + 1),
|
|
|
355 internal_hash (s->frame_specs, depth + 1),
|
|
|
356 internal_hash (s->buffer_specs, depth + 1));
|
|
|
357 }
|
|
|
358
|
|
665
|
359 inline static Bytecount
|
|
|
360 aligned_sizeof_specifier (Bytecount specifier_type_specific_size)
|
|
456
|
361 {
|
|
826
|
362 return MAX_ALIGN_SIZE (offsetof (Lisp_Specifier, data)
|
|
|
363 + specifier_type_specific_size);
|
|
456
|
364 }
|
|
|
365
|
|
665
|
366 static Bytecount
|
|
442
|
367 sizeof_specifier (const void *header)
|
|
428
|
368 {
|
|
456
|
369 const Lisp_Specifier *p = (const Lisp_Specifier *) header;
|
|
|
370 return aligned_sizeof_specifier (GHOST_SPECIFIER_P (p)
|
|
|
371 ? 0
|
|
|
372 : p->methods->extra_data_size);
|
|
428
|
373 }
|
|
|
374
|
|
1204
|
375 static const struct memory_description specifier_methods_description_1[] = {
|
|
440
|
376 { XD_LISP_OBJECT, offsetof (struct specifier_methods, predicate_symbol) },
|
|
428
|
377 { XD_END }
|
|
|
378 };
|
|
|
379
|
|
1204
|
380 const struct sized_memory_description specifier_methods_description = {
|
|
440
|
381 sizeof (struct specifier_methods),
|
|
428
|
382 specifier_methods_description_1
|
|
|
383 };
|
|
|
384
|
|
1204
|
385 static const struct memory_description specifier_caching_description_1[] = {
|
|
428
|
386 { XD_END }
|
|
|
387 };
|
|
|
388
|
|
3092
|
389 #ifdef NEW_GC
|
|
|
390 DEFINE_LRECORD_IMPLEMENTATION ("specifier-caching",
|
|
|
391 specifier_caching,
|
|
|
392 1, /*dumpable-flag*/
|
|
|
393 0, 0, 0, 0, 0,
|
|
|
394 specifier_caching_description_1,
|
|
|
395 struct specifier_caching);
|
|
|
396 #else /* not NEW_GC */
|
|
1204
|
397 static const struct sized_memory_description specifier_caching_description = {
|
|
440
|
398 sizeof (struct specifier_caching),
|
|
428
|
399 specifier_caching_description_1
|
|
|
400 };
|
|
3092
|
401 #endif /* not NEW_GC */
|
|
428
|
402
|
|
1204
|
403 static const struct sized_memory_description specifier_extra_description_map[]
|
|
|
404 = {
|
|
|
405 { offsetof (Lisp_Specifier, methods) },
|
|
|
406 { offsetof (struct specifier_methods, extra_description) },
|
|
|
407 { -1 },
|
|
|
408 };
|
|
|
409
|
|
|
410 const struct memory_description specifier_description[] = {
|
|
2367
|
411 { XD_BLOCK_PTR, offsetof (Lisp_Specifier, methods), 1,
|
|
2551
|
412 { &specifier_methods_description } },
|
|
440
|
413 { XD_LO_LINK, offsetof (Lisp_Specifier, next_specifier) },
|
|
|
414 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, global_specs) },
|
|
|
415 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, device_specs) },
|
|
|
416 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, frame_specs) },
|
|
|
417 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, window_specs) },
|
|
|
418 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, buffer_specs) },
|
|
3092
|
419 #ifdef NEW_GC
|
|
|
420 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, caching) },
|
|
|
421 #else /* not NEW_GC */
|
|
2367
|
422 { XD_BLOCK_PTR, offsetof (Lisp_Specifier, caching), 1,
|
|
2551
|
423 { &specifier_caching_description } },
|
|
3092
|
424 #endif /* not NEW_GC */
|
|
440
|
425 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, magic_parent) },
|
|
|
426 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, fallback) },
|
|
2367
|
427 { XD_BLOCK_ARRAY, offsetof (Lisp_Specifier, data), 1,
|
|
2551
|
428 { specifier_extra_description_map } },
|
|
428
|
429 { XD_END }
|
|
|
430 };
|
|
|
431
|
|
1204
|
432 static const struct memory_description specifier_empty_extra_description_1[] =
|
|
|
433 {
|
|
|
434 { XD_END }
|
|
|
435 };
|
|
|
436
|
|
|
437 const struct sized_memory_description specifier_empty_extra_description = {
|
|
|
438 0, specifier_empty_extra_description_1
|
|
|
439 };
|
|
|
440
|
|
934
|
441 DEFINE_LRECORD_SEQUENCE_IMPLEMENTATION ("specifier", specifier,
|
|
|
442 1, /*dumpable-flag*/
|
|
|
443 mark_specifier, print_specifier,
|
|
|
444 finalize_specifier,
|
|
|
445 specifier_equal, specifier_hash,
|
|
|
446 specifier_description,
|
|
|
447 sizeof_specifier,
|
|
|
448 Lisp_Specifier);
|
|
428
|
449
|
|
|
450 /************************************************************************/
|
|
|
451 /* Creating specifiers */
|
|
|
452 /************************************************************************/
|
|
|
453
|
|
|
454 static struct specifier_methods *
|
|
578
|
455 decode_specifier_type (Lisp_Object type, Error_Behavior errb)
|
|
428
|
456 {
|
|
|
457 int i;
|
|
|
458
|
|
|
459 for (i = 0; i < Dynarr_length (the_specifier_type_entry_dynarr); i++)
|
|
|
460 {
|
|
|
461 if (EQ (type, Dynarr_at (the_specifier_type_entry_dynarr, i).symbol))
|
|
|
462 return Dynarr_at (the_specifier_type_entry_dynarr, i).meths;
|
|
|
463 }
|
|
|
464
|
|
563
|
465 maybe_invalid_argument ("Invalid specifier type",
|
|
442
|
466 type, Qspecifier, errb);
|
|
428
|
467
|
|
|
468 return 0;
|
|
|
469 }
|
|
|
470
|
|
|
471 static int
|
|
|
472 valid_specifier_type_p (Lisp_Object type)
|
|
|
473 {
|
|
|
474 return decode_specifier_type (type, ERROR_ME_NOT) != 0;
|
|
|
475 }
|
|
|
476
|
|
|
477 DEFUN ("valid-specifier-type-p", Fvalid_specifier_type_p, 1, 1, 0, /*
|
|
|
478 Given a SPECIFIER-TYPE, return non-nil if it is valid.
|
|
2953
|
479 Valid types are `generic', `integer', `boolean', `color', `font', `image',
|
|
|
480 `face-boolean', and `toolbar'.
|
|
428
|
481 */
|
|
|
482 (specifier_type))
|
|
|
483 {
|
|
|
484 return valid_specifier_type_p (specifier_type) ? Qt : Qnil;
|
|
|
485 }
|
|
|
486
|
|
|
487 DEFUN ("specifier-type-list", Fspecifier_type_list, 0, 0, 0, /*
|
|
|
488 Return a list of valid specifier types.
|
|
|
489 */
|
|
|
490 ())
|
|
|
491 {
|
|
|
492 return Fcopy_sequence (Vspecifier_type_list);
|
|
|
493 }
|
|
|
494
|
|
|
495 void
|
|
|
496 add_entry_to_specifier_type_list (Lisp_Object symbol,
|
|
|
497 struct specifier_methods *meths)
|
|
|
498 {
|
|
|
499 struct specifier_type_entry entry;
|
|
|
500
|
|
|
501 entry.symbol = symbol;
|
|
|
502 entry.meths = meths;
|
|
|
503 Dynarr_add (the_specifier_type_entry_dynarr, entry);
|
|
|
504 Vspecifier_type_list = Fcons (symbol, Vspecifier_type_list);
|
|
|
505 }
|
|
|
506
|
|
|
507 static Lisp_Object
|
|
|
508 make_specifier_internal (struct specifier_methods *spec_meths,
|
|
665
|
509 Bytecount data_size, int call_create_meth)
|
|
428
|
510 {
|
|
|
511 Lisp_Object specifier;
|
|
440
|
512 Lisp_Specifier *sp = (Lisp_Specifier *)
|
|
3017
|
513 BASIC_ALLOC_LCRECORD (aligned_sizeof_specifier (data_size),
|
|
1204
|
514 &lrecord_specifier);
|
|
428
|
515
|
|
|
516 sp->methods = spec_meths;
|
|
|
517 sp->global_specs = Qnil;
|
|
|
518 sp->device_specs = Qnil;
|
|
|
519 sp->frame_specs = Qnil;
|
|
|
520 sp->window_specs = make_weak_list (WEAK_LIST_KEY_ASSOC);
|
|
|
521 sp->buffer_specs = Qnil;
|
|
|
522 sp->fallback = Qnil;
|
|
|
523 sp->magic_parent = Qnil;
|
|
|
524 sp->caching = 0;
|
|
|
525 sp->next_specifier = Vall_specifiers;
|
|
|
526
|
|
793
|
527 specifier = wrap_specifier (sp);
|
|
428
|
528 Vall_specifiers = specifier;
|
|
|
529
|
|
|
530 if (call_create_meth)
|
|
|
531 {
|
|
|
532 struct gcpro gcpro1;
|
|
|
533 GCPRO1 (specifier);
|
|
|
534 MAYBE_SPECMETH (XSPECIFIER (specifier), create, (specifier));
|
|
|
535 UNGCPRO;
|
|
|
536 }
|
|
|
537 return specifier;
|
|
|
538 }
|
|
|
539
|
|
|
540 static Lisp_Object
|
|
|
541 make_specifier (struct specifier_methods *meths)
|
|
|
542 {
|
|
|
543 return make_specifier_internal (meths, meths->extra_data_size, 1);
|
|
|
544 }
|
|
|
545
|
|
|
546 Lisp_Object
|
|
|
547 make_magic_specifier (Lisp_Object type)
|
|
|
548 {
|
|
|
549 /* This function can GC */
|
|
|
550 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME);
|
|
|
551 Lisp_Object bodily, ghost;
|
|
|
552 struct gcpro gcpro1;
|
|
|
553
|
|
|
554 bodily = make_specifier (meths);
|
|
|
555 GCPRO1 (bodily);
|
|
|
556 ghost = make_specifier_internal (meths, 0, 0);
|
|
|
557 UNGCPRO;
|
|
|
558
|
|
|
559 /* Connect guys together */
|
|
|
560 XSPECIFIER(bodily)->magic_parent = Qt;
|
|
|
561 XSPECIFIER(bodily)->fallback = ghost;
|
|
|
562 XSPECIFIER(ghost)->magic_parent = bodily;
|
|
|
563
|
|
|
564 return bodily;
|
|
|
565 }
|
|
|
566
|
|
|
567 DEFUN ("make-specifier", Fmake_specifier, 1, 1, 0, /*
|
|
|
568 Return a new specifier object of type TYPE.
|
|
|
569
|
|
|
570 A specifier is an object that can be used to keep track of a property
|
|
|
571 whose value can be per-buffer, per-window, per-frame, or per-device,
|
|
442
|
572 and can further be restricted to a particular console-type or
|
|
|
573 device-class. Specifiers are used, for example, for the various
|
|
|
574 built-in properties of a face; this allows a face to have different
|
|
|
575 values in different frames, buffers, etc.
|
|
|
576
|
|
|
577 When speaking of the value of a specifier, it is important to
|
|
|
578 distinguish between the *setting* of a specifier, called an
|
|
|
579 \"instantiator\", and the *actual value*, called an \"instance\". You
|
|
|
580 put various possible instantiators (i.e. settings) into a specifier
|
|
|
581 and associate them with particular locales (buffer, window, frame,
|
|
|
582 device, global), and then the instance (i.e. actual value) is
|
|
|
583 retrieved in a specific domain (window, frame, device) by looking
|
|
|
584 through the possible instantiators (i.e. settings). This process is
|
|
|
585 called \"instantiation\".
|
|
444
|
586
|
|
442
|
587 To put settings into a specifier, use `set-specifier', or the
|
|
|
588 lower-level functions `add-spec-to-specifier' and
|
|
|
589 `add-spec-list-to-specifier'. You can also temporarily bind a setting
|
|
|
590 to a specifier using `let-specifier'. To retrieve settings, use
|
|
|
591 `specifier-specs', or its lower-level counterpart
|
|
2953
|
592 `specifier-spec-list'.
|
|
|
593
|
|
|
594 To determine the actual value (i.e. the instance) in a particular domain, use
|
|
|
595 `specifier-instance'. To determine the corresponding setting that yielded
|
|
|
596 the value (i.e. the instantiator), use `specifier-instantiator'.
|
|
442
|
597
|
|
|
598 For more information, see `set-specifier', `specifier-instance',
|
|
428
|
599 `specifier-specs', and `add-spec-to-specifier'; or, for a detailed
|
|
442
|
600 description of specifiers, including how exactly the instantiation
|
|
|
601 process works, see the chapter on specifiers in the XEmacs Lisp
|
|
|
602 Reference Manual.
|
|
428
|
603
|
|
|
604 TYPE specifies the particular type of specifier, and should be one of
|
|
2953
|
605 the symbols `generic', `integer', `natnum', `boolean', `color', `font',
|
|
|
606 `image', `face-boolean', `display-table', `gutter', `gutter-size',
|
|
|
607 `gutter-visible' or `toolbar'.
|
|
442
|
608
|
|
|
609 For more information on particular types of specifiers, see the
|
|
|
610 functions `make-generic-specifier', `make-integer-specifier',
|
|
|
611 `make-natnum-specifier', `make-boolean-specifier',
|
|
|
612 `make-color-specifier', `make-font-specifier', `make-image-specifier',
|
|
|
613 `make-face-boolean-specifier', `make-gutter-size-specifier',
|
|
|
614 `make-gutter-visible-specifier', `default-toolbar', `default-gutter',
|
|
|
615 and `current-display-table'.
|
|
428
|
616 */
|
|
|
617 (type))
|
|
|
618 {
|
|
|
619 /* This function can GC */
|
|
442
|
620 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME);
|
|
428
|
621
|
|
|
622 return make_specifier (meths);
|
|
|
623 }
|
|
|
624
|
|
|
625 DEFUN ("specifierp", Fspecifierp, 1, 1, 0, /*
|
|
|
626 Return t if OBJECT is a specifier.
|
|
|
627
|
|
|
628 A specifier is an object that can be used to keep track of a property
|
|
|
629 whose value can be per-buffer, per-window, per-frame, or per-device,
|
|
|
630 and can further be restricted to a particular console-type or device-class.
|
|
|
631 See `make-specifier'.
|
|
|
632 */
|
|
|
633 (object))
|
|
|
634 {
|
|
|
635 return SPECIFIERP (object) ? Qt : Qnil;
|
|
|
636 }
|
|
|
637
|
|
|
638 DEFUN ("specifier-type", Fspecifier_type, 1, 1, 0, /*
|
|
|
639 Return the type of SPECIFIER.
|
|
|
640 */
|
|
|
641 (specifier))
|
|
|
642 {
|
|
|
643 CHECK_SPECIFIER (specifier);
|
|
|
644 return intern (XSPECIFIER (specifier)->methods->name);
|
|
|
645 }
|
|
|
646
|
|
|
647
|
|
|
648 /************************************************************************/
|
|
|
649 /* Locales and domains */
|
|
|
650 /************************************************************************/
|
|
|
651
|
|
|
652 DEFUN ("valid-specifier-locale-p", Fvalid_specifier_locale_p, 1, 1, 0, /*
|
|
|
653 Return t if LOCALE is a valid specifier locale.
|
|
2953
|
654 Valid locales are devices, frames, windows, buffers, and `global'.
|
|
428
|
655 \(nil is not valid.)
|
|
|
656 */
|
|
|
657 (locale))
|
|
|
658 {
|
|
|
659 /* This cannot GC. */
|
|
|
660 return ((DEVICEP (locale) && DEVICE_LIVE_P (XDEVICE (locale))) ||
|
|
|
661 (FRAMEP (locale) && FRAME_LIVE_P (XFRAME (locale))) ||
|
|
|
662 (BUFFERP (locale) && BUFFER_LIVE_P (XBUFFER (locale))) ||
|
|
|
663 /* dead windows are allowed because they may become live
|
|
|
664 windows again when a window configuration is restored */
|
|
|
665 WINDOWP (locale) ||
|
|
|
666 EQ (locale, Qglobal))
|
|
|
667 ? Qt : Qnil;
|
|
|
668 }
|
|
|
669
|
|
|
670 DEFUN ("valid-specifier-domain-p", Fvalid_specifier_domain_p, 1, 1, 0, /*
|
|
|
671 Return t if DOMAIN is a valid specifier domain.
|
|
2953
|
672 A domain is used to instantiate a specifier (i.e. determine the specifier's
|
|
442
|
673 value in that domain). Valid domains are image instances, windows, frames,
|
|
|
674 and devices. \(nil is not valid.) image instances are pseudo-domains since
|
|
|
675 instantiation will actually occur in the window the image instance itself is
|
|
|
676 instantiated in.
|
|
428
|
677 */
|
|
|
678 (domain))
|
|
|
679 {
|
|
|
680 /* This cannot GC. */
|
|
|
681 return ((DEVICEP (domain) && DEVICE_LIVE_P (XDEVICE (domain))) ||
|
|
|
682 (FRAMEP (domain) && FRAME_LIVE_P (XFRAME (domain))) ||
|
|
442
|
683 (WINDOWP (domain) && WINDOW_LIVE_P (XWINDOW (domain))) ||
|
|
|
684 /* #### get image instances out of domains! */
|
|
|
685 IMAGE_INSTANCEP (domain))
|
|
428
|
686 ? Qt : Qnil;
|
|
|
687 }
|
|
|
688
|
|
442
|
689 DEFUN ("valid-specifier-locale-type-p", Fvalid_specifier_locale_type_p, 1, 1, 0,
|
|
|
690 /*
|
|
428
|
691 Given a specifier LOCALE-TYPE, return non-nil if it is valid.
|
|
2953
|
692 Valid locale types are `global', `device', `frame', `window', and `buffer'.
|
|
428
|
693 \(Note, however, that in functions that accept either a locale or a locale
|
|
2953
|
694 type, `global' is considered an individual locale.)
|
|
428
|
695 */
|
|
|
696 (locale_type))
|
|
|
697 {
|
|
|
698 /* This cannot GC. */
|
|
|
699 return (EQ (locale_type, Qglobal) ||
|
|
|
700 EQ (locale_type, Qdevice) ||
|
|
|
701 EQ (locale_type, Qframe) ||
|
|
|
702 EQ (locale_type, Qwindow) ||
|
|
|
703 EQ (locale_type, Qbuffer)) ? Qt : Qnil;
|
|
|
704 }
|
|
|
705
|
|
|
706 static void
|
|
|
707 check_valid_locale_or_locale_type (Lisp_Object locale)
|
|
|
708 {
|
|
|
709 /* This cannot GC. */
|
|
|
710 if (EQ (locale, Qall) ||
|
|
|
711 !NILP (Fvalid_specifier_locale_p (locale)) ||
|
|
|
712 !NILP (Fvalid_specifier_locale_type_p (locale)))
|
|
|
713 return;
|
|
563
|
714 invalid_argument ("Invalid specifier locale or locale type", locale);
|
|
428
|
715 }
|
|
|
716
|
|
|
717 DEFUN ("specifier-locale-type-from-locale", Fspecifier_locale_type_from_locale,
|
|
|
718 1, 1, 0, /*
|
|
|
719 Given a specifier LOCALE, return its type.
|
|
|
720 */
|
|
|
721 (locale))
|
|
|
722 {
|
|
|
723 /* This cannot GC. */
|
|
|
724 if (NILP (Fvalid_specifier_locale_p (locale)))
|
|
563
|
725 invalid_argument ("Invalid specifier locale",
|
|
442
|
726 locale);
|
|
428
|
727 if (DEVICEP (locale)) return Qdevice;
|
|
|
728 if (FRAMEP (locale)) return Qframe;
|
|
|
729 if (WINDOWP (locale)) return Qwindow;
|
|
|
730 if (BUFFERP (locale)) return Qbuffer;
|
|
|
731 assert (EQ (locale, Qglobal));
|
|
|
732 return Qglobal;
|
|
|
733 }
|
|
|
734
|
|
|
735 static Lisp_Object
|
|
|
736 decode_locale (Lisp_Object locale)
|
|
|
737 {
|
|
|
738 /* This cannot GC. */
|
|
|
739 if (NILP (locale))
|
|
|
740 return Qglobal;
|
|
|
741 else if (!NILP (Fvalid_specifier_locale_p (locale)))
|
|
|
742 return locale;
|
|
|
743 else
|
|
563
|
744 invalid_argument ("Invalid specifier locale",
|
|
442
|
745 locale);
|
|
428
|
746
|
|
|
747 return Qnil;
|
|
|
748 }
|
|
|
749
|
|
|
750 static enum spec_locale_type
|
|
|
751 decode_locale_type (Lisp_Object locale_type)
|
|
|
752 {
|
|
|
753 /* This cannot GC. */
|
|
|
754 if (EQ (locale_type, Qglobal)) return LOCALE_GLOBAL;
|
|
|
755 if (EQ (locale_type, Qdevice)) return LOCALE_DEVICE;
|
|
|
756 if (EQ (locale_type, Qframe)) return LOCALE_FRAME;
|
|
|
757 if (EQ (locale_type, Qwindow)) return LOCALE_WINDOW;
|
|
|
758 if (EQ (locale_type, Qbuffer)) return LOCALE_BUFFER;
|
|
|
759
|
|
563
|
760 invalid_argument ("Invalid specifier locale type",
|
|
442
|
761 locale_type);
|
|
1204
|
762 RETURN_NOT_REACHED (LOCALE_GLOBAL);
|
|
428
|
763 }
|
|
|
764
|
|
|
765 Lisp_Object
|
|
|
766 decode_locale_list (Lisp_Object locale)
|
|
|
767 {
|
|
|
768 /* This cannot GC. */
|
|
|
769 /* The return value of this function must be GCPRO'd. */
|
|
|
770 if (NILP (locale))
|
|
|
771 {
|
|
|
772 return list1 (Qall);
|
|
|
773 }
|
|
|
774 else if (CONSP (locale))
|
|
|
775 {
|
|
|
776 EXTERNAL_LIST_LOOP_2 (elt, locale)
|
|
|
777 check_valid_locale_or_locale_type (elt);
|
|
|
778 return locale;
|
|
|
779 }
|
|
|
780 else
|
|
|
781 {
|
|
|
782 check_valid_locale_or_locale_type (locale);
|
|
|
783 return list1 (locale);
|
|
|
784 }
|
|
|
785 }
|
|
|
786
|
|
|
787 static enum spec_locale_type
|
|
|
788 locale_type_from_locale (Lisp_Object locale)
|
|
|
789 {
|
|
|
790 return decode_locale_type (Fspecifier_locale_type_from_locale (locale));
|
|
|
791 }
|
|
|
792
|
|
|
793 static void
|
|
|
794 check_valid_domain (Lisp_Object domain)
|
|
|
795 {
|
|
|
796 if (NILP (Fvalid_specifier_domain_p (domain)))
|
|
563
|
797 invalid_argument ("Invalid specifier domain",
|
|
442
|
798 domain);
|
|
428
|
799 }
|
|
|
800
|
|
442
|
801 Lisp_Object
|
|
428
|
802 decode_domain (Lisp_Object domain)
|
|
|
803 {
|
|
|
804 if (NILP (domain))
|
|
|
805 return Fselected_window (Qnil);
|
|
|
806 check_valid_domain (domain);
|
|
|
807 return domain;
|
|
|
808 }
|
|
|
809
|
|
|
810
|
|
|
811 /************************************************************************/
|
|
|
812 /* Tags */
|
|
|
813 /************************************************************************/
|
|
|
814
|
|
|
815 DEFUN ("valid-specifier-tag-p", Fvalid_specifier_tag_p, 1, 1, 0, /*
|
|
|
816 Return non-nil if TAG is a valid specifier tag.
|
|
|
817 See also `valid-specifier-tag-set-p'.
|
|
|
818 */
|
|
|
819 (tag))
|
|
|
820 {
|
|
|
821 return (valid_console_type_p (tag) ||
|
|
|
822 valid_device_class_p (tag) ||
|
|
|
823 !NILP (assq_no_quit (tag, Vuser_defined_tags))) ? Qt : Qnil;
|
|
|
824 }
|
|
|
825
|
|
|
826 DEFUN ("valid-specifier-tag-set-p", Fvalid_specifier_tag_set_p, 1, 1, 0, /*
|
|
|
827 Return non-nil if TAG-SET is a valid specifier tag set.
|
|
|
828
|
|
|
829 A specifier tag set is an entity that is attached to an instantiator
|
|
|
830 and can be used to restrict the scope of that instantiator to a
|
|
|
831 particular device class or device type and/or to mark instantiators
|
|
|
832 added by a particular package so that they can be later removed.
|
|
|
833
|
|
|
834 A specifier tag set consists of a list of zero of more specifier tags,
|
|
|
835 each of which is a symbol that is recognized by XEmacs as a tag.
|
|
|
836 \(The valid device types and device classes are always tags, as are
|
|
|
837 any tags defined by `define-specifier-tag'.) It is called a "tag set"
|
|
|
838 \(as opposed to a list) because the order of the tags or the number of
|
|
|
839 times a particular tag occurs does not matter.
|
|
|
840
|
|
|
841 Each tag has a predicate associated with it, which specifies whether
|
|
|
842 that tag applies to a particular device. The tags which are device types
|
|
|
843 and classes match devices of that type or class. User-defined tags can
|
|
|
844 have any predicate, or none (meaning that all devices match). When
|
|
2953
|
845 attempting to instantiate a specifier, a particular instantiator is only
|
|
|
846 considered if the device of the domain being instantiated over matches
|
|
428
|
847 all tags in the tag set attached to that instantiator.
|
|
|
848
|
|
|
849 Most of the time, a tag set is not specified, and the instantiator
|
|
|
850 gets a null tag set, which matches all devices.
|
|
|
851 */
|
|
|
852 (tag_set))
|
|
|
853 {
|
|
|
854 Lisp_Object rest;
|
|
|
855
|
|
|
856 for (rest = tag_set; !NILP (rest); rest = XCDR (rest))
|
|
|
857 {
|
|
|
858 if (!CONSP (rest))
|
|
|
859 return Qnil;
|
|
|
860 if (NILP (Fvalid_specifier_tag_p (XCAR (rest))))
|
|
|
861 return Qnil;
|
|
|
862 QUIT;
|
|
|
863 }
|
|
|
864 return Qt;
|
|
|
865 }
|
|
|
866
|
|
|
867 Lisp_Object
|
|
|
868 decode_specifier_tag_set (Lisp_Object tag_set)
|
|
|
869 {
|
|
|
870 /* The return value of this function must be GCPRO'd. */
|
|
|
871 if (!NILP (Fvalid_specifier_tag_p (tag_set)))
|
|
|
872 return list1 (tag_set);
|
|
|
873 if (NILP (Fvalid_specifier_tag_set_p (tag_set)))
|
|
563
|
874 invalid_argument ("Invalid specifier tag-set",
|
|
442
|
875 tag_set);
|
|
428
|
876 return tag_set;
|
|
|
877 }
|
|
|
878
|
|
|
879 static Lisp_Object
|
|
|
880 canonicalize_tag_set (Lisp_Object tag_set)
|
|
|
881 {
|
|
|
882 int len = XINT (Flength (tag_set));
|
|
|
883 Lisp_Object *tags, rest;
|
|
|
884 int i, j;
|
|
|
885
|
|
|
886 /* We assume in this function that the tag_set has already been
|
|
|
887 validated, so there are no surprises. */
|
|
|
888
|
|
|
889 if (len == 0 || len == 1)
|
|
|
890 /* most common case */
|
|
|
891 return tag_set;
|
|
|
892
|
|
|
893 tags = alloca_array (Lisp_Object, len);
|
|
|
894
|
|
|
895 i = 0;
|
|
|
896 LIST_LOOP (rest, tag_set)
|
|
|
897 tags[i++] = XCAR (rest);
|
|
|
898
|
|
|
899 /* Sort the list of tags. We use a bubble sort here (copied from
|
|
|
900 extent_fragment_update()) -- reduces the function call overhead,
|
|
|
901 and is the fastest sort for small numbers of items. */
|
|
|
902
|
|
|
903 for (i = 1; i < len; i++)
|
|
|
904 {
|
|
|
905 j = i - 1;
|
|
|
906 while (j >= 0 &&
|
|
793
|
907 qxestrcmp (XSTRING_DATA (XSYMBOL (tags[j])->name),
|
|
|
908 XSTRING_DATA (XSYMBOL (tags[j+1])->name)) > 0)
|
|
428
|
909 {
|
|
|
910 Lisp_Object tmp = tags[j];
|
|
|
911 tags[j] = tags[j+1];
|
|
|
912 tags[j+1] = tmp;
|
|
|
913 j--;
|
|
|
914 }
|
|
|
915 }
|
|
|
916
|
|
|
917 /* Now eliminate duplicates. */
|
|
|
918
|
|
|
919 for (i = 1, j = 1; i < len; i++)
|
|
|
920 {
|
|
|
921 /* j holds the destination, i the source. */
|
|
|
922 if (!EQ (tags[i], tags[i-1]))
|
|
|
923 tags[j++] = tags[i];
|
|
|
924 }
|
|
|
925
|
|
|
926 return Flist (j, tags);
|
|
|
927 }
|
|
|
928
|
|
|
929 DEFUN ("canonicalize-tag-set", Fcanonicalize_tag_set, 1, 1, 0, /*
|
|
|
930 Canonicalize the given tag set.
|
|
|
931 Two canonicalized tag sets can be compared with `equal' to see if they
|
|
|
932 represent the same tag set. (Specifically, canonicalizing involves
|
|
|
933 sorting by symbol name and removing duplicates.)
|
|
|
934 */
|
|
|
935 (tag_set))
|
|
|
936 {
|
|
|
937 if (NILP (Fvalid_specifier_tag_set_p (tag_set)))
|
|
563
|
938 invalid_argument ("Invalid tag set", tag_set);
|
|
428
|
939 return canonicalize_tag_set (tag_set);
|
|
|
940 }
|
|
|
941
|
|
|
942 static int
|
|
|
943 device_matches_specifier_tag_set_p (Lisp_Object device, Lisp_Object tag_set)
|
|
|
944 {
|
|
|
945 Lisp_Object devtype, devclass, rest;
|
|
|
946 struct device *d = XDEVICE (device);
|
|
|
947
|
|
|
948 devtype = DEVICE_TYPE (d);
|
|
|
949 devclass = DEVICE_CLASS (d);
|
|
|
950
|
|
|
951 LIST_LOOP (rest, tag_set)
|
|
|
952 {
|
|
|
953 Lisp_Object tag = XCAR (rest);
|
|
|
954 Lisp_Object assoc;
|
|
|
955
|
|
|
956 if (EQ (tag, devtype) || EQ (tag, devclass))
|
|
|
957 continue;
|
|
|
958 assoc = assq_no_quit (tag, DEVICE_USER_DEFINED_TAGS (d));
|
|
|
959 /* other built-in tags (device types/classes) are not in
|
|
|
960 the user-defined-tags list. */
|
|
|
961 if (NILP (assoc) || NILP (XCDR (assoc)))
|
|
|
962 return 0;
|
|
|
963 }
|
|
|
964
|
|
|
965 return 1;
|
|
|
966 }
|
|
|
967
|
|
442
|
968 DEFUN ("device-matches-specifier-tag-set-p",
|
|
|
969 Fdevice_matches_specifier_tag_set_p, 2, 2, 0, /*
|
|
428
|
970 Return non-nil if DEVICE matches specifier tag set TAG-SET.
|
|
|
971 This means that DEVICE matches each tag in the tag set. (Every
|
|
|
972 tag recognized by XEmacs has a predicate associated with it that
|
|
|
973 specifies which devices match it.)
|
|
|
974 */
|
|
|
975 (device, tag_set))
|
|
|
976 {
|
|
|
977 CHECK_LIVE_DEVICE (device);
|
|
|
978
|
|
|
979 if (NILP (Fvalid_specifier_tag_set_p (tag_set)))
|
|
563
|
980 invalid_argument ("Invalid tag set", tag_set);
|
|
428
|
981
|
|
|
982 return device_matches_specifier_tag_set_p (device, tag_set) ? Qt : Qnil;
|
|
|
983 }
|
|
|
984
|
|
|
985 DEFUN ("define-specifier-tag", Fdefine_specifier_tag, 1, 2, 0, /*
|
|
|
986 Define a new specifier tag.
|
|
|
987 If PREDICATE is specified, it should be a function of one argument
|
|
|
988 \(a device) that specifies whether the tag matches that particular
|
|
|
989 device. If PREDICATE is omitted, the tag matches all devices.
|
|
|
990
|
|
|
991 You can redefine an existing user-defined specifier tag. However,
|
|
|
992 you cannot redefine the built-in specifier tags (the device types
|
|
2953
|
993 and classes) or the symbols nil, t, `all', or `global'.
|
|
428
|
994 */
|
|
|
995 (tag, predicate))
|
|
|
996 {
|
|
|
997 Lisp_Object assoc, devcons, concons;
|
|
|
998 int recompute = 0;
|
|
|
999
|
|
|
1000 CHECK_SYMBOL (tag);
|
|
|
1001 if (valid_device_class_p (tag) ||
|
|
|
1002 valid_console_type_p (tag))
|
|
563
|
1003 invalid_change ("Cannot redefine built-in specifier tags", tag);
|
|
428
|
1004 /* Try to prevent common instantiators and locales from being
|
|
|
1005 redefined, to reduce ambiguity */
|
|
|
1006 if (NILP (tag) || EQ (tag, Qt) || EQ (tag, Qall) || EQ (tag, Qglobal))
|
|
2953
|
1007 invalid_change ("Cannot define nil, t, `all', or `global'", tag);
|
|
428
|
1008 assoc = assq_no_quit (tag, Vuser_defined_tags);
|
|
|
1009 if (NILP (assoc))
|
|
|
1010 {
|
|
|
1011 recompute = 1;
|
|
|
1012 Vuser_defined_tags = Fcons (Fcons (tag, predicate), Vuser_defined_tags);
|
|
|
1013 DEVICE_LOOP_NO_BREAK (devcons, concons)
|
|
|
1014 {
|
|
|
1015 struct device *d = XDEVICE (XCAR (devcons));
|
|
|
1016 /* Initially set the value to t in case of error
|
|
|
1017 in predicate */
|
|
|
1018 DEVICE_USER_DEFINED_TAGS (d) =
|
|
|
1019 Fcons (Fcons (tag, Qt), DEVICE_USER_DEFINED_TAGS (d));
|
|
|
1020 }
|
|
|
1021 }
|
|
|
1022 else if (!NILP (predicate) && !NILP (XCDR (assoc)))
|
|
|
1023 {
|
|
|
1024 recompute = 1;
|
|
|
1025 XCDR (assoc) = predicate;
|
|
|
1026 }
|
|
|
1027
|
|
|
1028 /* recompute the tag values for all devices. However, in the special
|
|
|
1029 case where both the old and new predicates are nil, we know that
|
|
|
1030 we don't have to do this. (It's probably common for people to
|
|
|
1031 call (define-specifier-tag) more than once on the same tag,
|
|
|
1032 and the most common case is where PREDICATE is not specified.) */
|
|
|
1033
|
|
|
1034 if (recompute)
|
|
|
1035 {
|
|
|
1036 DEVICE_LOOP_NO_BREAK (devcons, concons)
|
|
|
1037 {
|
|
|
1038 Lisp_Object device = XCAR (devcons);
|
|
|
1039 assoc = assq_no_quit (tag,
|
|
|
1040 DEVICE_USER_DEFINED_TAGS (XDEVICE (device)));
|
|
|
1041 assert (CONSP (assoc));
|
|
|
1042 if (NILP (predicate))
|
|
|
1043 XCDR (assoc) = Qt;
|
|
|
1044 else
|
|
|
1045 XCDR (assoc) = !NILP (call1 (predicate, device)) ? Qt : Qnil;
|
|
|
1046 }
|
|
|
1047 }
|
|
|
1048
|
|
|
1049 return Qnil;
|
|
|
1050 }
|
|
|
1051
|
|
|
1052 /* Called at device-creation time to initialize the user-defined
|
|
|
1053 tag values for the newly-created device. */
|
|
|
1054
|
|
|
1055 void
|
|
|
1056 setup_device_initial_specifier_tags (struct device *d)
|
|
|
1057 {
|
|
|
1058 Lisp_Object rest, rest2;
|
|
793
|
1059 Lisp_Object device = wrap_device (d);
|
|
|
1060
|
|
428
|
1061 DEVICE_USER_DEFINED_TAGS (d) = Fcopy_alist (Vuser_defined_tags);
|
|
|
1062
|
|
|
1063 /* Now set up the initial values */
|
|
|
1064 LIST_LOOP (rest, DEVICE_USER_DEFINED_TAGS (d))
|
|
|
1065 XCDR (XCAR (rest)) = Qt;
|
|
|
1066
|
|
|
1067 for (rest = Vuser_defined_tags, rest2 = DEVICE_USER_DEFINED_TAGS (d);
|
|
|
1068 !NILP (rest); rest = XCDR (rest), rest2 = XCDR (rest2))
|
|
|
1069 {
|
|
|
1070 Lisp_Object predicate = XCDR (XCAR (rest));
|
|
|
1071 if (NILP (predicate))
|
|
|
1072 XCDR (XCAR (rest2)) = Qt;
|
|
|
1073 else
|
|
872
|
1074 XCDR (XCAR (rest2)) =
|
|
|
1075 !NILP (call_critical_lisp_code (d, predicate, device)) ? Qt : Qnil;
|
|
428
|
1076 }
|
|
|
1077 }
|
|
|
1078
|
|
442
|
1079 DEFUN ("device-matching-specifier-tag-list",
|
|
|
1080 Fdevice_matching_specifier_tag_list,
|
|
428
|
1081 0, 1, 0, /*
|
|
|
1082 Return a list of all specifier tags matching DEVICE.
|
|
|
1083 DEVICE defaults to the selected device if omitted.
|
|
|
1084 */
|
|
|
1085 (device))
|
|
|
1086 {
|
|
|
1087 struct device *d = decode_device (device);
|
|
|
1088 Lisp_Object rest, list = Qnil;
|
|
|
1089 struct gcpro gcpro1;
|
|
|
1090
|
|
|
1091 GCPRO1 (list);
|
|
|
1092
|
|
|
1093 LIST_LOOP (rest, DEVICE_USER_DEFINED_TAGS (d))
|
|
|
1094 {
|
|
|
1095 if (!NILP (XCDR (XCAR (rest))))
|
|
|
1096 list = Fcons (XCAR (XCAR (rest)), list);
|
|
|
1097 }
|
|
|
1098
|
|
|
1099 list = Fnreverse (list);
|
|
|
1100 list = Fcons (DEVICE_CLASS (d), list);
|
|
|
1101 list = Fcons (DEVICE_TYPE (d), list);
|
|
|
1102
|
|
|
1103 RETURN_UNGCPRO (list);
|
|
|
1104 }
|
|
|
1105
|
|
|
1106 DEFUN ("specifier-tag-list", Fspecifier_tag_list, 0, 0, 0, /*
|
|
|
1107 Return a list of all currently-defined specifier tags.
|
|
|
1108 This includes the built-in ones (the device types and classes).
|
|
|
1109 */
|
|
|
1110 ())
|
|
|
1111 {
|
|
|
1112 Lisp_Object list = Qnil, rest;
|
|
|
1113 struct gcpro gcpro1;
|
|
|
1114
|
|
|
1115 GCPRO1 (list);
|
|
|
1116
|
|
|
1117 LIST_LOOP (rest, Vuser_defined_tags)
|
|
|
1118 list = Fcons (XCAR (XCAR (rest)), list);
|
|
|
1119
|
|
|
1120 list = Fnreverse (list);
|
|
|
1121 list = nconc2 (Fcopy_sequence (Vdevice_class_list), list);
|
|
|
1122 list = nconc2 (Fcopy_sequence (Vconsole_type_list), list);
|
|
|
1123
|
|
|
1124 RETURN_UNGCPRO (list);
|
|
|
1125 }
|
|
|
1126
|
|
|
1127 DEFUN ("specifier-tag-predicate", Fspecifier_tag_predicate, 1, 1, 0, /*
|
|
|
1128 Return the predicate for the given specifier tag.
|
|
|
1129 */
|
|
|
1130 (tag))
|
|
|
1131 {
|
|
|
1132 /* The return value of this function must be GCPRO'd. */
|
|
|
1133 CHECK_SYMBOL (tag);
|
|
|
1134
|
|
|
1135 if (NILP (Fvalid_specifier_tag_p (tag)))
|
|
563
|
1136 invalid_argument ("Invalid specifier tag",
|
|
442
|
1137 tag);
|
|
428
|
1138
|
|
|
1139 /* Make up some predicates for the built-in types */
|
|
|
1140
|
|
|
1141 if (valid_console_type_p (tag))
|
|
|
1142 return list3 (Qlambda, list1 (Qdevice),
|
|
|
1143 list3 (Qeq, list2 (Qquote, tag),
|
|
|
1144 list2 (Qconsole_type, Qdevice)));
|
|
|
1145
|
|
|
1146 if (valid_device_class_p (tag))
|
|
|
1147 return list3 (Qlambda, list1 (Qdevice),
|
|
|
1148 list3 (Qeq, list2 (Qquote, tag),
|
|
|
1149 list2 (Qdevice_class, Qdevice)));
|
|
|
1150
|
|
|
1151 return XCDR (assq_no_quit (tag, Vuser_defined_tags));
|
|
|
1152 }
|
|
|
1153
|
|
|
1154 /* Return true if A "matches" B. If EXACT_P is 0, A must be a subset of B.
|
|
|
1155 Otherwise, A must be `equal' to B. The sets must be canonicalized. */
|
|
|
1156 static int
|
|
|
1157 tag_sets_match_p (Lisp_Object a, Lisp_Object b, int exact_p)
|
|
|
1158 {
|
|
|
1159 if (!exact_p)
|
|
|
1160 {
|
|
|
1161 while (!NILP (a) && !NILP (b))
|
|
|
1162 {
|
|
|
1163 if (EQ (XCAR (a), XCAR (b)))
|
|
|
1164 a = XCDR (a);
|
|
|
1165 b = XCDR (b);
|
|
|
1166 }
|
|
|
1167
|
|
|
1168 return NILP (a);
|
|
|
1169 }
|
|
|
1170 else
|
|
|
1171 {
|
|
|
1172 while (!NILP (a) && !NILP (b))
|
|
|
1173 {
|
|
|
1174 if (!EQ (XCAR (a), XCAR (b)))
|
|
|
1175 return 0;
|
|
|
1176 a = XCDR (a);
|
|
|
1177 b = XCDR (b);
|
|
|
1178 }
|
|
|
1179
|
|
|
1180 return NILP (a) && NILP (b);
|
|
|
1181 }
|
|
|
1182 }
|
|
|
1183
|
|
|
1184
|
|
|
1185 /************************************************************************/
|
|
|
1186 /* Spec-lists and inst-lists */
|
|
|
1187 /************************************************************************/
|
|
|
1188
|
|
|
1189 static Lisp_Object
|
|
|
1190 call_validate_method (Lisp_Object boxed_method, Lisp_Object instantiator)
|
|
|
1191 {
|
|
|
1192 ((void (*)(Lisp_Object)) get_opaque_ptr (boxed_method)) (instantiator);
|
|
|
1193 return Qt;
|
|
|
1194 }
|
|
|
1195
|
|
|
1196 static Lisp_Object
|
|
|
1197 check_valid_instantiator (Lisp_Object instantiator,
|
|
|
1198 struct specifier_methods *meths,
|
|
578
|
1199 Error_Behavior errb)
|
|
428
|
1200 {
|
|
|
1201 if (meths->validate_method)
|
|
|
1202 {
|
|
|
1203 Lisp_Object retval;
|
|
|
1204
|
|
|
1205 if (ERRB_EQ (errb, ERROR_ME))
|
|
|
1206 {
|
|
|
1207 (meths->validate_method) (instantiator);
|
|
|
1208 retval = Qt;
|
|
|
1209 }
|
|
|
1210 else
|
|
|
1211 {
|
|
|
1212 Lisp_Object opaque = make_opaque_ptr ((void *)
|
|
|
1213 meths->validate_method);
|
|
|
1214 struct gcpro gcpro1;
|
|
|
1215
|
|
|
1216 GCPRO1 (opaque);
|
|
|
1217 retval = call_with_suspended_errors
|
|
|
1218 ((lisp_fn_t) call_validate_method,
|
|
|
1219 Qnil, Qspecifier, errb, 2, opaque, instantiator);
|
|
|
1220
|
|
|
1221 free_opaque_ptr (opaque);
|
|
|
1222 UNGCPRO;
|
|
|
1223 }
|
|
|
1224
|
|
|
1225 return retval;
|
|
|
1226 }
|
|
|
1227 return Qt;
|
|
|
1228 }
|
|
|
1229
|
|
|
1230 DEFUN ("check-valid-instantiator", Fcheck_valid_instantiator, 2, 2, 0, /*
|
|
|
1231 Signal an error if INSTANTIATOR is invalid for SPECIFIER-TYPE.
|
|
|
1232 */
|
|
|
1233 (instantiator, specifier_type))
|
|
|
1234 {
|
|
|
1235 struct specifier_methods *meths = decode_specifier_type (specifier_type,
|
|
|
1236 ERROR_ME);
|
|
|
1237
|
|
|
1238 return check_valid_instantiator (instantiator, meths, ERROR_ME);
|
|
|
1239 }
|
|
|
1240
|
|
|
1241 DEFUN ("valid-instantiator-p", Fvalid_instantiator_p, 2, 2, 0, /*
|
|
|
1242 Return non-nil if INSTANTIATOR is valid for SPECIFIER-TYPE.
|
|
|
1243 */
|
|
|
1244 (instantiator, specifier_type))
|
|
|
1245 {
|
|
|
1246 struct specifier_methods *meths = decode_specifier_type (specifier_type,
|
|
|
1247 ERROR_ME);
|
|
|
1248
|
|
|
1249 return check_valid_instantiator (instantiator, meths, ERROR_ME_NOT);
|
|
|
1250 }
|
|
|
1251
|
|
|
1252 static Lisp_Object
|
|
|
1253 check_valid_inst_list (Lisp_Object inst_list, struct specifier_methods *meths,
|
|
578
|
1254 Error_Behavior errb)
|
|
428
|
1255 {
|
|
2159
|
1256 EXTERNAL_LIST_LOOP_2 (inst_pair, inst_list)
|
|
428
|
1257 {
|
|
2159
|
1258 Lisp_Object tag_set;
|
|
|
1259
|
|
|
1260 if (!CONSP (inst_pair))
|
|
428
|
1261 {
|
|
563
|
1262 maybe_sferror (
|
|
442
|
1263 "Invalid instantiator pair", inst_pair,
|
|
428
|
1264 Qspecifier, errb);
|
|
|
1265 return Qnil;
|
|
|
1266 }
|
|
|
1267 if (NILP (Fvalid_specifier_tag_set_p (tag_set = XCAR (inst_pair))))
|
|
|
1268 {
|
|
563
|
1269 maybe_invalid_argument (
|
|
442
|
1270 "Invalid specifier tag", tag_set,
|
|
428
|
1271 Qspecifier, errb);
|
|
|
1272 return Qnil;
|
|
|
1273 }
|
|
|
1274
|
|
|
1275 if (NILP (check_valid_instantiator (XCDR (inst_pair), meths, errb)))
|
|
|
1276 return Qnil;
|
|
|
1277 }
|
|
|
1278
|
|
|
1279 return Qt;
|
|
|
1280 }
|
|
|
1281
|
|
|
1282 DEFUN ("check-valid-inst-list", Fcheck_valid_inst_list, 2, 2, 0, /*
|
|
|
1283 Signal an error if INST-LIST is invalid for specifier type TYPE.
|
|
|
1284 */
|
|
|
1285 (inst_list, type))
|
|
|
1286 {
|
|
|
1287 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME);
|
|
|
1288
|
|
|
1289 return check_valid_inst_list (inst_list, meths, ERROR_ME);
|
|
|
1290 }
|
|
|
1291
|
|
|
1292 DEFUN ("valid-inst-list-p", Fvalid_inst_list_p, 2, 2, 0, /*
|
|
|
1293 Return non-nil if INST-LIST is valid for specifier type TYPE.
|
|
|
1294 */
|
|
|
1295 (inst_list, type))
|
|
|
1296 {
|
|
|
1297 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME);
|
|
|
1298
|
|
|
1299 return check_valid_inst_list (inst_list, meths, ERROR_ME_NOT);
|
|
|
1300 }
|
|
|
1301
|
|
|
1302 static Lisp_Object
|
|
|
1303 check_valid_spec_list (Lisp_Object spec_list, struct specifier_methods *meths,
|
|
578
|
1304 Error_Behavior errb)
|
|
428
|
1305 {
|
|
2159
|
1306 EXTERNAL_LIST_LOOP_2 (spec, spec_list)
|
|
428
|
1307 {
|
|
2159
|
1308 Lisp_Object locale;
|
|
|
1309 if (!CONSP (spec))
|
|
428
|
1310 {
|
|
563
|
1311 maybe_sferror (
|
|
442
|
1312 "Invalid specification list", spec_list,
|
|
428
|
1313 Qspecifier, errb);
|
|
|
1314 return Qnil;
|
|
|
1315 }
|
|
|
1316 if (NILP (Fvalid_specifier_locale_p (locale = XCAR (spec))))
|
|
|
1317 {
|
|
563
|
1318 maybe_invalid_argument (
|
|
442
|
1319 "Invalid specifier locale", locale,
|
|
428
|
1320 Qspecifier, errb);
|
|
|
1321 return Qnil;
|
|
|
1322 }
|
|
|
1323
|
|
|
1324 if (NILP (check_valid_inst_list (XCDR (spec), meths, errb)))
|
|
|
1325 return Qnil;
|
|
|
1326 }
|
|
|
1327
|
|
|
1328 return Qt;
|
|
|
1329 }
|
|
|
1330
|
|
|
1331 DEFUN ("check-valid-spec-list", Fcheck_valid_spec_list, 2, 2, 0, /*
|
|
|
1332 Signal an error if SPEC-LIST is invalid for specifier type TYPE.
|
|
|
1333 */
|
|
|
1334 (spec_list, type))
|
|
|
1335 {
|
|
|
1336 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME);
|
|
|
1337
|
|
|
1338 return check_valid_spec_list (spec_list, meths, ERROR_ME);
|
|
|
1339 }
|
|
|
1340
|
|
|
1341 DEFUN ("valid-spec-list-p", Fvalid_spec_list_p, 2, 2, 0, /*
|
|
|
1342 Return non-nil if SPEC-LIST is valid for specifier type TYPE.
|
|
|
1343 */
|
|
|
1344 (spec_list, type))
|
|
|
1345 {
|
|
|
1346 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME);
|
|
|
1347
|
|
|
1348 return check_valid_spec_list (spec_list, meths, ERROR_ME_NOT);
|
|
|
1349 }
|
|
|
1350
|
|
|
1351 enum spec_add_meth
|
|
|
1352 decode_how_to_add_specification (Lisp_Object how_to_add)
|
|
|
1353 {
|
|
|
1354 if (NILP (how_to_add) || EQ (Qremove_tag_set_prepend, how_to_add))
|
|
|
1355 return SPEC_REMOVE_TAG_SET_PREPEND;
|
|
|
1356 if (EQ (Qremove_tag_set_append, how_to_add))
|
|
|
1357 return SPEC_REMOVE_TAG_SET_APPEND;
|
|
|
1358 if (EQ (Qappend, how_to_add))
|
|
|
1359 return SPEC_APPEND;
|
|
|
1360 if (EQ (Qprepend, how_to_add))
|
|
|
1361 return SPEC_PREPEND;
|
|
|
1362 if (EQ (Qremove_locale, how_to_add))
|
|
|
1363 return SPEC_REMOVE_LOCALE;
|
|
|
1364 if (EQ (Qremove_locale_type, how_to_add))
|
|
|
1365 return SPEC_REMOVE_LOCALE_TYPE;
|
|
|
1366 if (EQ (Qremove_all, how_to_add))
|
|
|
1367 return SPEC_REMOVE_ALL;
|
|
|
1368
|
|
563
|
1369 invalid_constant ("Invalid `how-to-add' flag", how_to_add);
|
|
428
|
1370
|
|
1204
|
1371 RETURN_NOT_REACHED (SPEC_PREPEND);
|
|
428
|
1372 }
|
|
|
1373
|
|
|
1374 /* Given a specifier object SPEC, return bodily specifier if SPEC is a
|
|
|
1375 ghost specifier, otherwise return the object itself
|
|
|
1376 */
|
|
|
1377 static Lisp_Object
|
|
|
1378 bodily_specifier (Lisp_Object spec)
|
|
|
1379 {
|
|
|
1380 return (GHOST_SPECIFIER_P (XSPECIFIER (spec))
|
|
|
1381 ? XSPECIFIER(spec)->magic_parent : spec);
|
|
|
1382 }
|
|
|
1383
|
|
|
1384 /* Signal error if (specifier SPEC is read-only.
|
|
|
1385 Read only are ghost specifiers unless Vunlock_ghost_specifiers is
|
|
|
1386 non-nil. All other specifiers are read-write.
|
|
|
1387 */
|
|
|
1388 static void
|
|
|
1389 check_modifiable_specifier (Lisp_Object spec)
|
|
|
1390 {
|
|
|
1391 if (NILP (Vunlock_ghost_specifiers)
|
|
|
1392 && GHOST_SPECIFIER_P (XSPECIFIER (spec)))
|
|
563
|
1393 signal_error (Qsetting_constant,
|
|
|
1394 "Attempt to modify read-only specifier",
|
|
|
1395 spec);
|
|
428
|
1396 }
|
|
|
1397
|
|
|
1398 int
|
|
|
1399 unlock_ghost_specifiers_protected (void)
|
|
|
1400 {
|
|
853
|
1401 return internal_bind_lisp_object (&Vunlock_ghost_specifiers, Qt);
|
|
428
|
1402 }
|
|
|
1403
|
|
|
1404 /* This gets hit so much that the function call overhead had a
|
|
|
1405 measurable impact (according to Quantify). #### We should figure
|
|
|
1406 out the frequency with which this is called with the various types
|
|
|
1407 and reorder the check accordingly. */
|
|
|
1408 #define SPECIFIER_GET_SPEC_LIST(specifier, type) \
|
|
|
1409 (type == LOCALE_GLOBAL ? &(XSPECIFIER (specifier)->global_specs) : \
|
|
|
1410 type == LOCALE_DEVICE ? &(XSPECIFIER (specifier)->device_specs) : \
|
|
|
1411 type == LOCALE_FRAME ? &(XSPECIFIER (specifier)->frame_specs) : \
|
|
|
1412 type == LOCALE_WINDOW ? &(XWEAK_LIST_LIST \
|
|
|
1413 (XSPECIFIER (specifier)->window_specs)) : \
|
|
|
1414 type == LOCALE_BUFFER ? &(XSPECIFIER (specifier)->buffer_specs) : \
|
|
|
1415 0)
|
|
|
1416
|
|
|
1417 static Lisp_Object *
|
|
|
1418 specifier_get_inst_list (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1419 enum spec_locale_type type)
|
|
|
1420 {
|
|
|
1421 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type);
|
|
|
1422 Lisp_Object specification;
|
|
|
1423
|
|
|
1424 if (type == LOCALE_GLOBAL)
|
|
|
1425 return spec_list;
|
|
|
1426 /* Calling assq_no_quit when it is just going to return nil anyhow
|
|
|
1427 is extremely expensive. So sayeth Quantify. */
|
|
|
1428 if (!CONSP (*spec_list))
|
|
|
1429 return 0;
|
|
|
1430 specification = assq_no_quit (locale, *spec_list);
|
|
|
1431 if (NILP (specification))
|
|
|
1432 return 0;
|
|
|
1433 return &XCDR (specification);
|
|
|
1434 }
|
|
|
1435
|
|
|
1436 /* For the given INST_LIST, return a new INST_LIST containing all elements
|
|
|
1437 where TAG-SET matches the element's tag set. EXACT_P indicates whether
|
|
|
1438 the match must be exact (as opposed to a subset). SHORT_P indicates
|
|
|
1439 that the short form (for `specifier-specs') should be returned if
|
|
|
1440 possible. If COPY_TREE_P, `copy-tree' is used to ensure that no
|
|
|
1441 elements of the new list are shared with the initial list.
|
|
|
1442 */
|
|
|
1443
|
|
|
1444 static Lisp_Object
|
|
|
1445 specifier_process_inst_list (Lisp_Object inst_list,
|
|
|
1446 Lisp_Object tag_set, int exact_p,
|
|
|
1447 int short_p, int copy_tree_p)
|
|
|
1448 {
|
|
|
1449 Lisp_Object retval = Qnil;
|
|
|
1450 Lisp_Object rest;
|
|
|
1451 struct gcpro gcpro1;
|
|
|
1452
|
|
|
1453 GCPRO1 (retval);
|
|
|
1454 LIST_LOOP (rest, inst_list)
|
|
|
1455 {
|
|
|
1456 Lisp_Object tagged_inst = XCAR (rest);
|
|
|
1457 Lisp_Object tagged_inst_tag = XCAR (tagged_inst);
|
|
|
1458 if (tag_sets_match_p (tag_set, tagged_inst_tag, exact_p))
|
|
|
1459 {
|
|
|
1460 if (short_p && NILP (tagged_inst_tag))
|
|
|
1461 retval = Fcons (copy_tree_p ?
|
|
|
1462 Fcopy_tree (XCDR (tagged_inst), Qt) :
|
|
|
1463 XCDR (tagged_inst),
|
|
|
1464 retval);
|
|
|
1465 else
|
|
|
1466 retval = Fcons (copy_tree_p ? Fcopy_tree (tagged_inst, Qt) :
|
|
|
1467 tagged_inst, retval);
|
|
|
1468 }
|
|
|
1469 }
|
|
|
1470 retval = Fnreverse (retval);
|
|
|
1471 UNGCPRO;
|
|
|
1472 /* If there is a single instantiator and the short form is
|
|
|
1473 requested, return just the instantiator (rather than a one-element
|
|
|
1474 list of it) unless it is nil (so that it can be distinguished from
|
|
|
1475 no instantiators at all). */
|
|
|
1476 if (short_p && CONSP (retval) && !NILP (XCAR (retval)) &&
|
|
|
1477 NILP (XCDR (retval)))
|
|
|
1478 return XCAR (retval);
|
|
|
1479 else
|
|
|
1480 return retval;
|
|
|
1481 }
|
|
|
1482
|
|
|
1483 static Lisp_Object
|
|
|
1484 specifier_get_external_inst_list (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1485 enum spec_locale_type type,
|
|
|
1486 Lisp_Object tag_set, int exact_p,
|
|
|
1487 int short_p, int copy_tree_p)
|
|
|
1488 {
|
|
|
1489 Lisp_Object *inst_list = specifier_get_inst_list (specifier, locale,
|
|
|
1490 type);
|
|
|
1491 if (!inst_list || NILP (*inst_list))
|
|
|
1492 {
|
|
2953
|
1493 /* nil for *inst_list should only occur in `global' */
|
|
428
|
1494 assert (!inst_list || EQ (locale, Qglobal));
|
|
|
1495 return Qnil;
|
|
|
1496 }
|
|
|
1497
|
|
|
1498 return specifier_process_inst_list (*inst_list, tag_set, exact_p,
|
|
|
1499 short_p, copy_tree_p);
|
|
|
1500 }
|
|
|
1501
|
|
|
1502 static Lisp_Object
|
|
|
1503 specifier_get_external_spec_list (Lisp_Object specifier,
|
|
|
1504 enum spec_locale_type type,
|
|
|
1505 Lisp_Object tag_set, int exact_p)
|
|
|
1506 {
|
|
|
1507 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type);
|
|
|
1508 Lisp_Object retval = Qnil;
|
|
|
1509 Lisp_Object rest;
|
|
|
1510 struct gcpro gcpro1;
|
|
|
1511
|
|
|
1512 assert (type != LOCALE_GLOBAL);
|
|
|
1513 /* We're about to let stuff go external; make sure there aren't
|
|
|
1514 any dead objects */
|
|
|
1515 *spec_list = cleanup_assoc_list (*spec_list);
|
|
|
1516
|
|
|
1517 GCPRO1 (retval);
|
|
|
1518 LIST_LOOP (rest, *spec_list)
|
|
|
1519 {
|
|
|
1520 Lisp_Object spec = XCAR (rest);
|
|
|
1521 Lisp_Object inst_list =
|
|
|
1522 specifier_process_inst_list (XCDR (spec), tag_set, exact_p, 0, 1);
|
|
|
1523 if (!NILP (inst_list))
|
|
|
1524 retval = Fcons (Fcons (XCAR (spec), inst_list), retval);
|
|
|
1525 }
|
|
|
1526 RETURN_UNGCPRO (Fnreverse (retval));
|
|
|
1527 }
|
|
|
1528
|
|
|
1529 static Lisp_Object *
|
|
|
1530 specifier_new_spec (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1531 enum spec_locale_type type)
|
|
|
1532 {
|
|
|
1533 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type);
|
|
|
1534 Lisp_Object new_spec = Fcons (locale, Qnil);
|
|
|
1535 assert (type != LOCALE_GLOBAL);
|
|
|
1536 *spec_list = Fcons (new_spec, *spec_list);
|
|
|
1537 return &XCDR (new_spec);
|
|
|
1538 }
|
|
|
1539
|
|
|
1540 /* For the given INST_LIST, return a new list comprised of elements
|
|
|
1541 where TAG_SET does not match the element's tag set. This operation
|
|
|
1542 is destructive. */
|
|
|
1543
|
|
|
1544 static Lisp_Object
|
|
|
1545 specifier_process_remove_inst_list (Lisp_Object inst_list,
|
|
|
1546 Lisp_Object tag_set, int exact_p,
|
|
|
1547 int *was_removed)
|
|
|
1548 {
|
|
|
1549 Lisp_Object prev = Qnil, rest;
|
|
|
1550
|
|
|
1551 *was_removed = 0;
|
|
|
1552
|
|
|
1553 LIST_LOOP (rest, inst_list)
|
|
|
1554 {
|
|
|
1555 if (tag_sets_match_p (tag_set, XCAR (XCAR (rest)), exact_p))
|
|
|
1556 {
|
|
|
1557 /* time to remove. */
|
|
|
1558 *was_removed = 1;
|
|
|
1559 if (NILP (prev))
|
|
|
1560 inst_list = XCDR (rest);
|
|
|
1561 else
|
|
|
1562 XCDR (prev) = XCDR (rest);
|
|
|
1563 }
|
|
|
1564 else
|
|
|
1565 prev = rest;
|
|
|
1566 }
|
|
|
1567
|
|
|
1568 return inst_list;
|
|
|
1569 }
|
|
|
1570
|
|
|
1571 static void
|
|
|
1572 specifier_remove_spec (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1573 enum spec_locale_type type,
|
|
|
1574 Lisp_Object tag_set, int exact_p)
|
|
|
1575 {
|
|
|
1576 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type);
|
|
|
1577 Lisp_Object assoc;
|
|
|
1578 int was_removed;
|
|
|
1579
|
|
|
1580 if (type == LOCALE_GLOBAL)
|
|
|
1581 *spec_list = specifier_process_remove_inst_list (*spec_list, tag_set,
|
|
|
1582 exact_p, &was_removed);
|
|
|
1583 else
|
|
|
1584 {
|
|
|
1585 assoc = assq_no_quit (locale, *spec_list);
|
|
|
1586 if (NILP (assoc))
|
|
|
1587 /* this locale is not found. */
|
|
|
1588 return;
|
|
|
1589 XCDR (assoc) = specifier_process_remove_inst_list (XCDR (assoc),
|
|
|
1590 tag_set, exact_p,
|
|
|
1591 &was_removed);
|
|
|
1592 if (NILP (XCDR (assoc)))
|
|
|
1593 /* no inst-pairs left; remove this locale entirely. */
|
|
|
1594 *spec_list = remassq_no_quit (locale, *spec_list);
|
|
|
1595 }
|
|
|
1596
|
|
|
1597 if (was_removed)
|
|
|
1598 MAYBE_SPECMETH (XSPECIFIER (specifier), after_change,
|
|
|
1599 (bodily_specifier (specifier), locale));
|
|
|
1600 }
|
|
|
1601
|
|
|
1602 static void
|
|
|
1603 specifier_remove_locale_type (Lisp_Object specifier,
|
|
|
1604 enum spec_locale_type type,
|
|
|
1605 Lisp_Object tag_set, int exact_p)
|
|
|
1606 {
|
|
|
1607 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type);
|
|
|
1608 Lisp_Object prev = Qnil, rest;
|
|
|
1609
|
|
|
1610 assert (type != LOCALE_GLOBAL);
|
|
|
1611 LIST_LOOP (rest, *spec_list)
|
|
|
1612 {
|
|
|
1613 int was_removed;
|
|
|
1614 int remove_spec = 0;
|
|
|
1615 Lisp_Object spec = XCAR (rest);
|
|
|
1616
|
|
|
1617 /* There may be dead objects floating around */
|
|
|
1618 /* remember, dead windows can become alive again. */
|
|
|
1619 if (!WINDOWP (XCAR (spec)) && object_dead_p (XCAR (spec)))
|
|
|
1620 {
|
|
|
1621 remove_spec = 1;
|
|
|
1622 was_removed = 0;
|
|
|
1623 }
|
|
|
1624 else
|
|
|
1625 {
|
|
|
1626 XCDR (spec) = specifier_process_remove_inst_list (XCDR (spec),
|
|
|
1627 tag_set, exact_p,
|
|
|
1628 &was_removed);
|
|
|
1629 if (NILP (XCDR (spec)))
|
|
|
1630 remove_spec = 1;
|
|
|
1631 }
|
|
|
1632
|
|
|
1633 if (remove_spec)
|
|
|
1634 {
|
|
|
1635 if (NILP (prev))
|
|
|
1636 *spec_list = XCDR (rest);
|
|
|
1637 else
|
|
|
1638 XCDR (prev) = XCDR (rest);
|
|
|
1639 }
|
|
|
1640 else
|
|
|
1641 prev = rest;
|
|
|
1642
|
|
|
1643 if (was_removed)
|
|
|
1644 MAYBE_SPECMETH (XSPECIFIER (specifier), after_change,
|
|
|
1645 (bodily_specifier (specifier), XCAR (spec)));
|
|
|
1646 }
|
|
|
1647 }
|
|
|
1648
|
|
|
1649 /* NEW_LIST is going to be added to INST_LIST, with add method ADD_METH.
|
|
|
1650 Frob INST_LIST according to ADD_METH. No need to call an after-change
|
|
|
1651 function; the calling function will do this. Return either SPEC_PREPEND
|
|
|
1652 or SPEC_APPEND, indicating whether to prepend or append the NEW_LIST. */
|
|
|
1653
|
|
|
1654 static enum spec_add_meth
|
|
|
1655 handle_multiple_add_insts (Lisp_Object *inst_list,
|
|
|
1656 Lisp_Object new_list,
|
|
|
1657 enum spec_add_meth add_meth)
|
|
|
1658 {
|
|
|
1659 switch (add_meth)
|
|
|
1660 {
|
|
|
1661 case SPEC_REMOVE_TAG_SET_APPEND:
|
|
|
1662 add_meth = SPEC_APPEND;
|
|
|
1663 goto remove_tag_set;
|
|
|
1664 case SPEC_REMOVE_TAG_SET_PREPEND:
|
|
|
1665 add_meth = SPEC_PREPEND;
|
|
|
1666 remove_tag_set:
|
|
|
1667 {
|
|
|
1668 Lisp_Object rest;
|
|
|
1669
|
|
|
1670 LIST_LOOP (rest, new_list)
|
|
|
1671 {
|
|
|
1672 Lisp_Object canontag = canonicalize_tag_set (XCAR (XCAR (rest)));
|
|
|
1673 struct gcpro gcpro1;
|
|
|
1674
|
|
|
1675 GCPRO1 (canontag);
|
|
|
1676 /* pull out all elements from the existing list with the
|
|
|
1677 same tag as any tags in NEW_LIST. */
|
|
|
1678 *inst_list = remassoc_no_quit (canontag, *inst_list);
|
|
|
1679 UNGCPRO;
|
|
|
1680 }
|
|
|
1681 }
|
|
|
1682 return add_meth;
|
|
|
1683 case SPEC_REMOVE_LOCALE:
|
|
|
1684 *inst_list = Qnil;
|
|
|
1685 return SPEC_PREPEND;
|
|
|
1686 case SPEC_APPEND:
|
|
|
1687 return add_meth;
|
|
|
1688 default:
|
|
|
1689 return SPEC_PREPEND;
|
|
|
1690 }
|
|
|
1691 }
|
|
|
1692
|
|
|
1693 /* Given a LOCALE and INST_LIST that is going to be added to SPECIFIER,
|
|
|
1694 copy, canonicalize, and call the going_to_add methods as necessary
|
|
|
1695 to produce a new list that is the one that really will be added
|
|
|
1696 to the specifier. */
|
|
|
1697
|
|
|
1698 static Lisp_Object
|
|
|
1699 build_up_processed_list (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1700 Lisp_Object inst_list)
|
|
|
1701 {
|
|
|
1702 /* The return value of this function must be GCPRO'd. */
|
|
|
1703 Lisp_Object rest, list_to_build_up = Qnil;
|
|
440
|
1704 Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
428
|
1705 struct gcpro gcpro1;
|
|
|
1706
|
|
|
1707 GCPRO1 (list_to_build_up);
|
|
|
1708 LIST_LOOP (rest, inst_list)
|
|
|
1709 {
|
|
|
1710 Lisp_Object tag_set = XCAR (XCAR (rest));
|
|
|
1711 Lisp_Object sub_inst_list = Qnil;
|
|
434
|
1712 Lisp_Object instantiator;
|
|
428
|
1713 struct gcpro ngcpro1, ngcpro2;
|
|
|
1714
|
|
434
|
1715 if (HAS_SPECMETH_P (sp, copy_instantiator))
|
|
|
1716 instantiator = SPECMETH (sp, copy_instantiator,
|
|
|
1717 (XCDR (XCAR (rest))));
|
|
|
1718 else
|
|
|
1719 instantiator = Fcopy_tree (XCDR (XCAR (rest)), Qt);
|
|
|
1720
|
|
428
|
1721 NGCPRO2 (instantiator, sub_inst_list);
|
|
|
1722 /* call the will-add method; it may GC */
|
|
|
1723 sub_inst_list = HAS_SPECMETH_P (sp, going_to_add) ?
|
|
|
1724 SPECMETH (sp, going_to_add,
|
|
|
1725 (bodily_specifier (specifier), locale,
|
|
|
1726 tag_set, instantiator)) :
|
|
|
1727 Qt;
|
|
|
1728 if (EQ (sub_inst_list, Qt))
|
|
|
1729 /* no change here. */
|
|
|
1730 sub_inst_list = list1 (Fcons (canonicalize_tag_set (tag_set),
|
|
|
1731 instantiator));
|
|
|
1732 else
|
|
|
1733 {
|
|
|
1734 /* now canonicalize all the tag sets in the new objects */
|
|
|
1735 Lisp_Object rest2;
|
|
|
1736 LIST_LOOP (rest2, sub_inst_list)
|
|
|
1737 XCAR (XCAR (rest2)) = canonicalize_tag_set (XCAR (XCAR (rest2)));
|
|
|
1738 }
|
|
|
1739
|
|
|
1740 list_to_build_up = nconc2 (sub_inst_list, list_to_build_up);
|
|
|
1741 NUNGCPRO;
|
|
|
1742 }
|
|
|
1743
|
|
|
1744 RETURN_UNGCPRO (Fnreverse (list_to_build_up));
|
|
|
1745 }
|
|
|
1746
|
|
|
1747 /* Add a specification (locale and instantiator list) to a specifier.
|
|
|
1748 ADD_METH specifies what to do with existing specifications in the
|
|
|
1749 specifier, and is an enum that corresponds to the values in
|
|
|
1750 `add-spec-to-specifier'. The calling routine is responsible for
|
|
|
1751 validating LOCALE and INST-LIST, but the tag-sets in INST-LIST
|
|
|
1752 do not need to be canonicalized. */
|
|
|
1753
|
|
|
1754 /* #### I really need to rethink the after-change
|
|
|
1755 functions to make them easier to use and more efficient. */
|
|
|
1756
|
|
|
1757 static void
|
|
|
1758 specifier_add_spec (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1759 Lisp_Object inst_list, enum spec_add_meth add_meth)
|
|
|
1760 {
|
|
440
|
1761 Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
428
|
1762 enum spec_locale_type type = locale_type_from_locale (locale);
|
|
|
1763 Lisp_Object *orig_inst_list, tem;
|
|
|
1764 Lisp_Object list_to_build_up = Qnil;
|
|
|
1765 struct gcpro gcpro1;
|
|
|
1766
|
|
1015
|
1767 if (NILP (inst_list))
|
|
|
1768 return;
|
|
|
1769
|
|
428
|
1770 GCPRO1 (list_to_build_up);
|
|
|
1771 list_to_build_up = build_up_processed_list (specifier, locale, inst_list);
|
|
|
1772 /* Now handle REMOVE_LOCALE_TYPE and REMOVE_ALL. These are the
|
|
|
1773 add-meth types that affect locales other than this one. */
|
|
|
1774 if (add_meth == SPEC_REMOVE_LOCALE_TYPE)
|
|
|
1775 specifier_remove_locale_type (specifier, type, Qnil, 0);
|
|
|
1776 else if (add_meth == SPEC_REMOVE_ALL)
|
|
|
1777 {
|
|
|
1778 specifier_remove_locale_type (specifier, LOCALE_BUFFER, Qnil, 0);
|
|
|
1779 specifier_remove_locale_type (specifier, LOCALE_WINDOW, Qnil, 0);
|
|
|
1780 specifier_remove_locale_type (specifier, LOCALE_FRAME, Qnil, 0);
|
|
|
1781 specifier_remove_locale_type (specifier, LOCALE_DEVICE, Qnil, 0);
|
|
|
1782 specifier_remove_spec (specifier, Qglobal, LOCALE_GLOBAL, Qnil, 0);
|
|
|
1783 }
|
|
|
1784
|
|
|
1785 orig_inst_list = specifier_get_inst_list (specifier, locale, type);
|
|
|
1786 if (!orig_inst_list)
|
|
|
1787 orig_inst_list = specifier_new_spec (specifier, locale, type);
|
|
|
1788 add_meth = handle_multiple_add_insts (orig_inst_list, list_to_build_up,
|
|
|
1789 add_meth);
|
|
|
1790
|
|
|
1791 if (add_meth == SPEC_PREPEND)
|
|
|
1792 tem = nconc2 (list_to_build_up, *orig_inst_list);
|
|
|
1793 else if (add_meth == SPEC_APPEND)
|
|
|
1794 tem = nconc2 (*orig_inst_list, list_to_build_up);
|
|
|
1795 else
|
|
442
|
1796 {
|
|
2500
|
1797 ABORT ();
|
|
442
|
1798 tem = Qnil;
|
|
|
1799 }
|
|
428
|
1800
|
|
|
1801 *orig_inst_list = tem;
|
|
|
1802
|
|
|
1803 UNGCPRO;
|
|
|
1804
|
|
|
1805 /* call the after-change method */
|
|
|
1806 MAYBE_SPECMETH (sp, after_change,
|
|
|
1807 (bodily_specifier (specifier), locale));
|
|
|
1808 }
|
|
|
1809
|
|
|
1810 static void
|
|
|
1811 specifier_copy_spec (Lisp_Object specifier, Lisp_Object dest,
|
|
|
1812 Lisp_Object locale, enum spec_locale_type type,
|
|
|
1813 Lisp_Object tag_set, int exact_p,
|
|
|
1814 enum spec_add_meth add_meth)
|
|
|
1815 {
|
|
|
1816 Lisp_Object inst_list =
|
|
|
1817 specifier_get_external_inst_list (specifier, locale, type, tag_set,
|
|
|
1818 exact_p, 0, 0);
|
|
|
1819 specifier_add_spec (dest, locale, inst_list, add_meth);
|
|
|
1820 }
|
|
|
1821
|
|
|
1822 static void
|
|
|
1823 specifier_copy_locale_type (Lisp_Object specifier, Lisp_Object dest,
|
|
|
1824 enum spec_locale_type type,
|
|
|
1825 Lisp_Object tag_set, int exact_p,
|
|
|
1826 enum spec_add_meth add_meth)
|
|
|
1827 {
|
|
|
1828 Lisp_Object *src_list = SPECIFIER_GET_SPEC_LIST (specifier, type);
|
|
|
1829 Lisp_Object rest;
|
|
|
1830
|
|
|
1831 /* This algorithm is O(n^2) in running time.
|
|
|
1832 It's certainly possible to implement an O(n log n) algorithm,
|
|
|
1833 but I doubt there's any need to. */
|
|
|
1834
|
|
|
1835 LIST_LOOP (rest, *src_list)
|
|
|
1836 {
|
|
|
1837 Lisp_Object spec = XCAR (rest);
|
|
|
1838 /* There may be dead objects floating around */
|
|
|
1839 /* remember, dead windows can become alive again. */
|
|
|
1840 if (WINDOWP (XCAR (spec)) || !object_dead_p (XCAR (spec)))
|
|
|
1841 specifier_add_spec
|
|
|
1842 (dest, XCAR (spec),
|
|
|
1843 specifier_process_inst_list (XCDR (spec), tag_set, exact_p, 0, 0),
|
|
|
1844 add_meth);
|
|
|
1845 }
|
|
|
1846 }
|
|
|
1847
|
|
|
1848 /* map MAPFUN over the locales in SPECIFIER that are given in LOCALE.
|
|
|
1849 CLOSURE is passed unchanged to MAPFUN. LOCALE can be one of
|
|
|
1850
|
|
2953
|
1851 -- nil (same as `all')
|
|
|
1852 -- a single locale, locale type, or `all'
|
|
|
1853 -- a list of locales, locale types, and/or `all'
|
|
|
1854
|
|
|
1855 MAPFUN is called for each locale and locale type given; for `all',
|
|
|
1856 it is called for the locale `global' and for the four possible
|
|
428
|
1857 locale types. In each invocation, either LOCALE will be a locale
|
|
|
1858 and LOCALE_TYPE will be the locale type of this locale,
|
|
|
1859 or LOCALE will be nil and LOCALE_TYPE will be a locale type.
|
|
|
1860 If MAPFUN ever returns non-zero, the mapping is halted and the
|
|
|
1861 value returned is returned from map_specifier(). Otherwise, the
|
|
|
1862 mapping proceeds to the end and map_specifier() returns 0.
|
|
|
1863 */
|
|
|
1864
|
|
|
1865 static int
|
|
|
1866 map_specifier (Lisp_Object specifier, Lisp_Object locale,
|
|
|
1867 int (*mapfun) (Lisp_Object specifier,
|
|
|
1868 Lisp_Object locale,
|
|
|
1869 enum spec_locale_type locale_type,
|
|
|
1870 Lisp_Object tag_set,
|
|
|
1871 int exact_p,
|
|
|
1872 void *closure),
|
|
|
1873 Lisp_Object tag_set, Lisp_Object exact_p,
|
|
|
1874 void *closure)
|
|
|
1875 {
|
|
|
1876 int retval = 0;
|
|
|
1877 Lisp_Object rest;
|
|
|
1878 struct gcpro gcpro1, gcpro2;
|
|
|
1879
|
|
|
1880 GCPRO2 (tag_set, locale);
|
|
|
1881 locale = decode_locale_list (locale);
|
|
|
1882 tag_set = decode_specifier_tag_set (tag_set);
|
|
|
1883 tag_set = canonicalize_tag_set (tag_set);
|
|
|
1884
|
|
|
1885 LIST_LOOP (rest, locale)
|
|
|
1886 {
|
|
|
1887 Lisp_Object theloc = XCAR (rest);
|
|
|
1888 if (!NILP (Fvalid_specifier_locale_p (theloc)))
|
|
|
1889 {
|
|
|
1890 retval = (*mapfun) (specifier, theloc,
|
|
|
1891 locale_type_from_locale (theloc),
|
|
|
1892 tag_set, !NILP (exact_p), closure);
|
|
|
1893 if (retval)
|
|
|
1894 break;
|
|
|
1895 }
|
|
|
1896 else if (!NILP (Fvalid_specifier_locale_type_p (theloc)))
|
|
|
1897 {
|
|
|
1898 retval = (*mapfun) (specifier, Qnil,
|
|
|
1899 decode_locale_type (theloc), tag_set,
|
|
|
1900 !NILP (exact_p), closure);
|
|
|
1901 if (retval)
|
|
|
1902 break;
|
|
|
1903 }
|
|
|
1904 else
|
|
|
1905 {
|
|
|
1906 assert (EQ (theloc, Qall));
|
|
|
1907 retval = (*mapfun) (specifier, Qnil, LOCALE_BUFFER, tag_set,
|
|
|
1908 !NILP (exact_p), closure);
|
|
|
1909 if (retval)
|
|
|
1910 break;
|
|
|
1911 retval = (*mapfun) (specifier, Qnil, LOCALE_WINDOW, tag_set,
|
|
|
1912 !NILP (exact_p), closure);
|
|
|
1913 if (retval)
|
|
|
1914 break;
|
|
|
1915 retval = (*mapfun) (specifier, Qnil, LOCALE_FRAME, tag_set,
|
|
|
1916 !NILP (exact_p), closure);
|
|
|
1917 if (retval)
|
|
|
1918 break;
|
|
|
1919 retval = (*mapfun) (specifier, Qnil, LOCALE_DEVICE, tag_set,
|
|
|
1920 !NILP (exact_p), closure);
|
|
|
1921 if (retval)
|
|
|
1922 break;
|
|
|
1923 retval = (*mapfun) (specifier, Qglobal, LOCALE_GLOBAL, tag_set,
|
|
|
1924 !NILP (exact_p), closure);
|
|
|
1925 if (retval)
|
|
|
1926 break;
|
|
|
1927 }
|
|
|
1928 }
|
|
|
1929
|
|
|
1930 UNGCPRO;
|
|
|
1931 return retval;
|
|
|
1932 }
|
|
|
1933
|
|
|
1934 DEFUN ("add-spec-to-specifier", Fadd_spec_to_specifier, 2, 5, 0, /*
|
|
|
1935 Add a specification to SPECIFIER.
|
|
|
1936 The specification maps from LOCALE (which should be a window, buffer,
|
|
2953
|
1937 frame, device, or `global', and defaults to `global') to INSTANTIATOR,
|
|
428
|
1938 whose allowed values depend on the type of the specifier. Optional
|
|
|
1939 argument TAG-SET limits the instantiator to apply only to the specified
|
|
|
1940 tag set, which should be a list of tags all of which must match the
|
|
|
1941 device being instantiated over (tags are a device type, a device class,
|
|
|
1942 or tags defined with `define-specifier-tag'). Specifying a single
|
|
|
1943 symbol for TAG-SET is equivalent to specifying a one-element list
|
|
|
1944 containing that symbol. Optional argument HOW-TO-ADD specifies what to
|
|
|
1945 do if there are already specifications in the specifier.
|
|
|
1946 It should be one of
|
|
|
1947
|
|
2953
|
1948 `prepend' Put at the beginning of the current list of
|
|
428
|
1949 instantiators for LOCALE.
|
|
2953
|
1950 `append' Add to the end of the current list of
|
|
428
|
1951 instantiators for LOCALE.
|
|
2953
|
1952 `remove-tag-set-prepend' (this is the default)
|
|
428
|
1953 Remove any existing instantiators whose tag set is
|
|
|
1954 the same as TAG-SET; then put the new instantiator
|
|
|
1955 at the beginning of the current list. ("Same tag
|
|
|
1956 set" means that they contain the same elements.
|
|
|
1957 The order may be different.)
|
|
2953
|
1958 `remove-tag-set-append'
|
|
428
|
1959 Remove any existing instantiators whose tag set is
|
|
|
1960 the same as TAG-SET; then put the new instantiator
|
|
|
1961 at the end of the current list.
|
|
2953
|
1962 `remove-locale' Remove all previous instantiators for this locale
|
|
428
|
1963 before adding the new spec.
|
|
2953
|
1964 `remove-locale-type' Remove all specifications for all locales of the
|
|
428
|
1965 same type as LOCALE (this includes LOCALE itself)
|
|
|
1966 before adding the new spec.
|
|
2953
|
1967 `remove-all' Remove all specifications from the specifier
|
|
428
|
1968 before adding the new spec.
|
|
|
1969
|
|
|
1970 You can retrieve the specifications for a particular locale or locale type
|
|
|
1971 with the function `specifier-spec-list' or `specifier-specs'.
|
|
|
1972 */
|
|
|
1973 (specifier, instantiator, locale, tag_set, how_to_add))
|
|
|
1974 {
|
|
|
1975 enum spec_add_meth add_meth;
|
|
|
1976 Lisp_Object inst_list;
|
|
|
1977 struct gcpro gcpro1;
|
|
|
1978
|
|
|
1979 CHECK_SPECIFIER (specifier);
|
|
|
1980 check_modifiable_specifier (specifier);
|
|
|
1981
|
|
|
1982 locale = decode_locale (locale);
|
|
|
1983 check_valid_instantiator (instantiator,
|
|
|
1984 decode_specifier_type
|
|
|
1985 (Fspecifier_type (specifier), ERROR_ME),
|
|
|
1986 ERROR_ME);
|
|
|
1987 /* tag_set might be newly-created material, but it's part of inst_list
|
|
|
1988 so is properly GC-protected. */
|
|
|
1989 tag_set = decode_specifier_tag_set (tag_set);
|
|
|
1990 add_meth = decode_how_to_add_specification (how_to_add);
|
|
|
1991
|
|
|
1992 inst_list = list1 (Fcons (tag_set, instantiator));
|
|
|
1993 GCPRO1 (inst_list);
|
|
|
1994 specifier_add_spec (specifier, locale, inst_list, add_meth);
|
|
|
1995 recompute_cached_specifier_everywhere (specifier);
|
|
|
1996 RETURN_UNGCPRO (Qnil);
|
|
|
1997 }
|
|
|
1998
|
|
|
1999 DEFUN ("add-spec-list-to-specifier", Fadd_spec_list_to_specifier, 2, 3, 0, /*
|
|
444
|
2000 Add SPEC-LIST (a list of specifications) to SPECIFIER.
|
|
|
2001 The format of SPEC-LIST is
|
|
428
|
2002
|
|
|
2003 ((LOCALE (TAG-SET . INSTANTIATOR) ...) ...)
|
|
|
2004
|
|
|
2005 where
|
|
2953
|
2006 LOCALE := a window, a buffer, a frame, a device, or `global'
|
|
428
|
2007 TAG-SET := an unordered list of zero or more TAGS, each of which
|
|
|
2008 is a symbol
|
|
|
2009 TAG := a device class (see `valid-device-class-p'), a device type
|
|
|
2010 (see `valid-console-type-p'), or a tag defined with
|
|
|
2011 `define-specifier-tag'
|
|
|
2012 INSTANTIATOR := format determined by the type of specifier
|
|
|
2013
|
|
|
2014 The pair (TAG-SET . INSTANTIATOR) is called an `inst-pair'.
|
|
|
2015 A list of inst-pairs is called an `inst-list'.
|
|
|
2016 The pair (LOCALE . INST-LIST) is called a `specification' or `spec'.
|
|
|
2017 A spec-list, then, can be viewed as a list of specifications.
|
|
|
2018
|
|
|
2019 HOW-TO-ADD specifies how to combine the new specifications with
|
|
|
2020 the existing ones, and has the same semantics as for
|
|
|
2021 `add-spec-to-specifier'.
|
|
|
2022
|
|
|
2023 In many circumstances, the higher-level function `set-specifier' is
|
|
|
2024 more convenient and should be used instead.
|
|
|
2025 */
|
|
|
2026 (specifier, spec_list, how_to_add))
|
|
|
2027 {
|
|
|
2028 enum spec_add_meth add_meth;
|
|
|
2029 Lisp_Object rest;
|
|
|
2030
|
|
|
2031 CHECK_SPECIFIER (specifier);
|
|
|
2032 check_modifiable_specifier (specifier);
|
|
|
2033
|
|
|
2034 check_valid_spec_list (spec_list,
|
|
|
2035 decode_specifier_type
|
|
|
2036 (Fspecifier_type (specifier), ERROR_ME),
|
|
|
2037 ERROR_ME);
|
|
|
2038 add_meth = decode_how_to_add_specification (how_to_add);
|
|
|
2039
|
|
|
2040 LIST_LOOP (rest, spec_list)
|
|
|
2041 {
|
|
|
2042 /* Placating the GCC god. */
|
|
|
2043 Lisp_Object specification = XCAR (rest);
|
|
|
2044 Lisp_Object locale = XCAR (specification);
|
|
|
2045 Lisp_Object inst_list = XCDR (specification);
|
|
|
2046
|
|
|
2047 specifier_add_spec (specifier, locale, inst_list, add_meth);
|
|
|
2048 }
|
|
|
2049 recompute_cached_specifier_everywhere (specifier);
|
|
|
2050 return Qnil;
|
|
|
2051 }
|
|
|
2052
|
|
|
2053 void
|
|
|
2054 add_spec_to_ghost_specifier (Lisp_Object specifier, Lisp_Object instantiator,
|
|
|
2055 Lisp_Object locale, Lisp_Object tag_set,
|
|
|
2056 Lisp_Object how_to_add)
|
|
|
2057 {
|
|
|
2058 int depth = unlock_ghost_specifiers_protected ();
|
|
|
2059 Fadd_spec_to_specifier (XSPECIFIER(specifier)->fallback,
|
|
|
2060 instantiator, locale, tag_set, how_to_add);
|
|
771
|
2061 unbind_to (depth);
|
|
428
|
2062 }
|
|
|
2063
|
|
|
2064 struct specifier_spec_list_closure
|
|
|
2065 {
|
|
|
2066 Lisp_Object head, tail;
|
|
|
2067 };
|
|
|
2068
|
|
|
2069 static int
|
|
|
2070 specifier_spec_list_mapfun (Lisp_Object specifier,
|
|
|
2071 Lisp_Object locale,
|
|
|
2072 enum spec_locale_type locale_type,
|
|
|
2073 Lisp_Object tag_set,
|
|
|
2074 int exact_p,
|
|
|
2075 void *closure)
|
|
|
2076 {
|
|
|
2077 struct specifier_spec_list_closure *cl =
|
|
|
2078 (struct specifier_spec_list_closure *) closure;
|
|
|
2079 Lisp_Object partial;
|
|
|
2080
|
|
|
2081 if (NILP (locale))
|
|
|
2082 partial = specifier_get_external_spec_list (specifier,
|
|
|
2083 locale_type,
|
|
|
2084 tag_set, exact_p);
|
|
|
2085 else
|
|
|
2086 {
|
|
|
2087 partial = specifier_get_external_inst_list (specifier, locale,
|
|
|
2088 locale_type, tag_set,
|
|
|
2089 exact_p, 0, 1);
|
|
|
2090 if (!NILP (partial))
|
|
|
2091 partial = list1 (Fcons (locale, partial));
|
|
|
2092 }
|
|
|
2093 if (NILP (partial))
|
|
|
2094 return 0;
|
|
|
2095
|
|
|
2096 /* tack on the new list */
|
|
|
2097 if (NILP (cl->tail))
|
|
|
2098 cl->head = cl->tail = partial;
|
|
|
2099 else
|
|
|
2100 XCDR (cl->tail) = partial;
|
|
|
2101 /* find the new tail */
|
|
|
2102 while (CONSP (XCDR (cl->tail)))
|
|
|
2103 cl->tail = XCDR (cl->tail);
|
|
|
2104 return 0;
|
|
|
2105 }
|
|
|
2106
|
|
|
2107 /* For the given SPECIFIER create and return a list of all specs
|
|
|
2108 contained within it, subject to LOCALE. If LOCALE is a locale, only
|
|
|
2109 specs in that locale will be returned. If LOCALE is a locale type,
|
|
|
2110 all specs in all locales of that type will be returned. If LOCALE is
|
|
|
2111 nil, all specs will be returned. This always copies lists and never
|
|
|
2112 returns the actual lists, because we do not want someone manipulating
|
|
|
2113 the actual objects. This may cause a slight loss of potential
|
|
|
2114 functionality but if we were to allow it then a user could manage to
|
|
|
2115 violate our assertion that the specs contained in the actual
|
|
|
2116 specifier lists are all valid. */
|
|
|
2117
|
|
|
2118 DEFUN ("specifier-spec-list", Fspecifier_spec_list, 1, 4, 0, /*
|
|
|
2119 Return the spec-list of specifications for SPECIFIER in LOCALE.
|
|
|
2120
|
|
|
2121 If LOCALE is a particular locale (a buffer, window, frame, device,
|
|
2953
|
2122 or `global'), a spec-list consisting of the specification for that
|
|
428
|
2123 locale will be returned.
|
|
|
2124
|
|
2953
|
2125 If LOCALE is a locale type (i.e. `buffer', `window', `frame', or `device'),
|
|
428
|
2126 a spec-list of the specifications for all locales of that type will be
|
|
|
2127 returned.
|
|
|
2128
|
|
2953
|
2129 If LOCALE is nil or `all', a spec-list of all specifications in SPECIFIER
|
|
428
|
2130 will be returned.
|
|
|
2131
|
|
2953
|
2132 LOCALE can also be a list of locales, locale types, and/or `all'; the
|
|
428
|
2133 result is as if `specifier-spec-list' were called on each element of the
|
|
|
2134 list and the results concatenated together.
|
|
|
2135
|
|
|
2136 Only instantiators where TAG-SET (a list of zero or more tags) is a
|
|
|
2137 subset of (or possibly equal to) the instantiator's tag set are returned.
|
|
|
2138 \(The default value of nil is a subset of all tag sets, so in this case
|
|
|
2139 no instantiators will be screened out.) If EXACT-P is non-nil, however,
|
|
|
2140 TAG-SET must be equal to an instantiator's tag set for the instantiator
|
|
|
2141 to be returned.
|
|
|
2142 */
|
|
|
2143 (specifier, locale, tag_set, exact_p))
|
|
|
2144 {
|
|
|
2145 struct specifier_spec_list_closure cl;
|
|
|
2146 struct gcpro gcpro1, gcpro2;
|
|
|
2147
|
|
|
2148 CHECK_SPECIFIER (specifier);
|
|
|
2149 cl.head = cl.tail = Qnil;
|
|
|
2150 GCPRO2 (cl.head, cl.tail);
|
|
|
2151 map_specifier (specifier, locale, specifier_spec_list_mapfun,
|
|
|
2152 tag_set, exact_p, &cl);
|
|
|
2153 UNGCPRO;
|
|
|
2154 return cl.head;
|
|
|
2155 }
|
|
|
2156
|
|
|
2157
|
|
|
2158 DEFUN ("specifier-specs", Fspecifier_specs, 1, 4, 0, /*
|
|
|
2159 Return the specification(s) for SPECIFIER in LOCALE.
|
|
|
2160
|
|
|
2161 If LOCALE is a single locale or is a list of one element containing a
|
|
|
2162 single locale, then a "short form" of the instantiators for that locale
|
|
|
2163 will be returned. Otherwise, this function is identical to
|
|
|
2164 `specifier-spec-list'.
|
|
|
2165
|
|
|
2166 The "short form" is designed for readability and not for ease of use
|
|
|
2167 in Lisp programs, and is as follows:
|
|
|
2168
|
|
|
2169 1. If there is only one instantiator, then an inst-pair (i.e. cons of
|
|
|
2170 tag and instantiator) will be returned; otherwise a list of
|
|
|
2171 inst-pairs will be returned.
|
|
2953
|
2172 2. For each inst-pair returned, if the instantiator's tag is `any',
|
|
428
|
2173 the tag will be removed and the instantiator itself will be returned
|
|
|
2174 instead of the inst-pair.
|
|
|
2175 3. If there is only one instantiator, its value is nil, and its tag is
|
|
2953
|
2176 `any', a one-element list containing nil will be returned rather
|
|
428
|
2177 than just nil, to distinguish this case from there being no
|
|
|
2178 instantiators at all.
|
|
|
2179 */
|
|
|
2180 (specifier, locale, tag_set, exact_p))
|
|
|
2181 {
|
|
|
2182 if (!NILP (Fvalid_specifier_locale_p (locale)) ||
|
|
|
2183 (CONSP (locale) && !NILP (Fvalid_specifier_locale_p (XCAR (locale))) &&
|
|
|
2184 NILP (XCDR (locale))))
|
|
|
2185 {
|
|
|
2186 struct gcpro gcpro1;
|
|
|
2187
|
|
|
2188 CHECK_SPECIFIER (specifier);
|
|
|
2189 if (CONSP (locale))
|
|
|
2190 locale = XCAR (locale);
|
|
|
2191 GCPRO1 (tag_set);
|
|
|
2192 tag_set = decode_specifier_tag_set (tag_set);
|
|
|
2193 tag_set = canonicalize_tag_set (tag_set);
|
|
|
2194 RETURN_UNGCPRO
|
|
|
2195 (specifier_get_external_inst_list (specifier, locale,
|
|
|
2196 locale_type_from_locale (locale),
|
|
|
2197 tag_set, !NILP (exact_p), 1, 1));
|
|
|
2198 }
|
|
|
2199 else
|
|
|
2200 return Fspecifier_spec_list (specifier, locale, tag_set, exact_p);
|
|
|
2201 }
|
|
|
2202
|
|
|
2203 static int
|
|
|
2204 remove_specifier_mapfun (Lisp_Object specifier,
|
|
|
2205 Lisp_Object locale,
|
|
|
2206 enum spec_locale_type locale_type,
|
|
|
2207 Lisp_Object tag_set,
|
|
|
2208 int exact_p,
|
|
2286
|
2209 void *UNUSED (closure))
|
|
428
|
2210 {
|
|
|
2211 if (NILP (locale))
|
|
|
2212 specifier_remove_locale_type (specifier, locale_type, tag_set, exact_p);
|
|
|
2213 else
|
|
|
2214 specifier_remove_spec (specifier, locale, locale_type, tag_set, exact_p);
|
|
|
2215 return 0;
|
|
|
2216 }
|
|
|
2217
|
|
|
2218 DEFUN ("remove-specifier", Fremove_specifier, 1, 4, 0, /*
|
|
|
2219 Remove specification(s) for SPECIFIER.
|
|
|
2220
|
|
|
2221 If LOCALE is a particular locale (a window, buffer, frame, device,
|
|
2953
|
2222 or `global'), the specification for that locale will be removed.
|
|
|
2223
|
|
|
2224 If instead, LOCALE is a locale type (i.e. `window', `buffer', `frame',
|
|
|
2225 or `device'), the specifications for all locales of that type will be
|
|
428
|
2226 removed.
|
|
|
2227
|
|
2953
|
2228 If LOCALE is nil or `all', all specifications will be removed.
|
|
|
2229
|
|
|
2230 LOCALE can also be a list of locales, locale types, and/or `all'; this
|
|
428
|
2231 is equivalent to calling `remove-specifier' for each of the elements
|
|
|
2232 in the list.
|
|
|
2233
|
|
|
2234 Only instantiators where TAG-SET (a list of zero or more tags) is a
|
|
|
2235 subset of (or possibly equal to) the instantiator's tag set are removed.
|
|
|
2236 The default value of nil is a subset of all tag sets, so in this case
|
|
|
2237 no instantiators will be screened out. If EXACT-P is non-nil, however,
|
|
|
2238 TAG-SET must be equal to an instantiator's tag set for the instantiator
|
|
|
2239 to be removed.
|
|
|
2240 */
|
|
|
2241 (specifier, locale, tag_set, exact_p))
|
|
|
2242 {
|
|
|
2243 CHECK_SPECIFIER (specifier);
|
|
|
2244 check_modifiable_specifier (specifier);
|
|
|
2245
|
|
|
2246 map_specifier (specifier, locale, remove_specifier_mapfun,
|
|
|
2247 tag_set, exact_p, 0);
|
|
|
2248 recompute_cached_specifier_everywhere (specifier);
|
|
|
2249 return Qnil;
|
|
|
2250 }
|
|
|
2251
|
|
|
2252 void
|
|
|
2253 remove_ghost_specifier (Lisp_Object specifier, Lisp_Object locale,
|
|
|
2254 Lisp_Object tag_set, Lisp_Object exact_p)
|
|
|
2255 {
|
|
|
2256 int depth = unlock_ghost_specifiers_protected ();
|
|
|
2257 Fremove_specifier (XSPECIFIER(specifier)->fallback,
|
|
|
2258 locale, tag_set, exact_p);
|
|
771
|
2259 unbind_to (depth);
|
|
428
|
2260 }
|
|
|
2261
|
|
|
2262 struct copy_specifier_closure
|
|
|
2263 {
|
|
|
2264 Lisp_Object dest;
|
|
|
2265 enum spec_add_meth add_meth;
|
|
|
2266 int add_meth_is_nil;
|
|
|
2267 };
|
|
|
2268
|
|
|
2269 static int
|
|
|
2270 copy_specifier_mapfun (Lisp_Object specifier,
|
|
|
2271 Lisp_Object locale,
|
|
|
2272 enum spec_locale_type locale_type,
|
|
|
2273 Lisp_Object tag_set,
|
|
|
2274 int exact_p,
|
|
|
2275 void *closure)
|
|
|
2276 {
|
|
|
2277 struct copy_specifier_closure *cl =
|
|
|
2278 (struct copy_specifier_closure *) closure;
|
|
|
2279
|
|
|
2280 if (NILP (locale))
|
|
|
2281 specifier_copy_locale_type (specifier, cl->dest, locale_type,
|
|
|
2282 tag_set, exact_p,
|
|
|
2283 cl->add_meth_is_nil ?
|
|
|
2284 SPEC_REMOVE_LOCALE_TYPE :
|
|
|
2285 cl->add_meth);
|
|
|
2286 else
|
|
|
2287 specifier_copy_spec (specifier, cl->dest, locale, locale_type,
|
|
|
2288 tag_set, exact_p,
|
|
|
2289 cl->add_meth_is_nil ? SPEC_REMOVE_LOCALE :
|
|
|
2290 cl->add_meth);
|
|
|
2291 return 0;
|
|
|
2292 }
|
|
|
2293
|
|
|
2294 DEFUN ("copy-specifier", Fcopy_specifier, 1, 6, 0, /*
|
|
|
2295 Copy SPECIFIER to DEST, or create a new one if DEST is nil.
|
|
|
2296
|
|
|
2297 If DEST is nil or omitted, a new specifier will be created and the
|
|
|
2298 specifications copied into it. Otherwise, the specifications will be
|
|
|
2299 copied into the existing specifier in DEST.
|
|
|
2300
|
|
2953
|
2301 If LOCALE is nil or `all', all specifications will be copied. If LOCALE
|
|
428
|
2302 is a particular locale, the specification for that particular locale will
|
|
|
2303 be copied. If LOCALE is a locale type, the specifications for all locales
|
|
|
2304 of that type will be copied. LOCALE can also be a list of locales,
|
|
2953
|
2305 locale types, and/or `all'; this is equivalent to calling `copy-specifier'
|
|
428
|
2306 for each of the elements of the list. See `specifier-spec-list' for more
|
|
|
2307 information about LOCALE.
|
|
|
2308
|
|
|
2309 Only instantiators where TAG-SET (a list of zero or more tags) is a
|
|
|
2310 subset of (or possibly equal to) the instantiator's tag set are copied.
|
|
|
2311 The default value of nil is a subset of all tag sets, so in this case
|
|
|
2312 no instantiators will be screened out. If EXACT-P is non-nil, however,
|
|
|
2313 TAG-SET must be equal to an instantiator's tag set for the instantiator
|
|
|
2314 to be copied.
|
|
|
2315
|
|
|
2316 Optional argument HOW-TO-ADD specifies what to do with existing
|
|
|
2317 specifications in DEST. If nil, then whichever locales or locale types
|
|
|
2318 are copied will first be completely erased in DEST. Otherwise, it is
|
|
|
2319 the same as in `add-spec-to-specifier'.
|
|
|
2320 */
|
|
|
2321 (specifier, dest, locale, tag_set, exact_p, how_to_add))
|
|
|
2322 {
|
|
|
2323 struct gcpro gcpro1;
|
|
|
2324 struct copy_specifier_closure cl;
|
|
|
2325
|
|
|
2326 CHECK_SPECIFIER (specifier);
|
|
|
2327 if (NILP (how_to_add))
|
|
|
2328 cl.add_meth_is_nil = 1;
|
|
|
2329 else
|
|
|
2330 cl.add_meth_is_nil = 0;
|
|
|
2331 cl.add_meth = decode_how_to_add_specification (how_to_add);
|
|
|
2332 if (NILP (dest))
|
|
|
2333 {
|
|
|
2334 /* #### What about copying the extra data? */
|
|
|
2335 dest = make_specifier (XSPECIFIER (specifier)->methods);
|
|
|
2336 }
|
|
|
2337 else
|
|
|
2338 {
|
|
|
2339 CHECK_SPECIFIER (dest);
|
|
|
2340 check_modifiable_specifier (dest);
|
|
|
2341 if (XSPECIFIER (dest)->methods != XSPECIFIER (specifier)->methods)
|
|
563
|
2342 invalid_argument ("Specifiers not of same type", Qunbound);
|
|
428
|
2343 }
|
|
|
2344
|
|
|
2345 cl.dest = dest;
|
|
|
2346 GCPRO1 (dest);
|
|
|
2347 map_specifier (specifier, locale, copy_specifier_mapfun,
|
|
|
2348 tag_set, exact_p, &cl);
|
|
|
2349 UNGCPRO;
|
|
|
2350 recompute_cached_specifier_everywhere (dest);
|
|
|
2351 return dest;
|
|
|
2352 }
|
|
|
2353
|
|
|
2354
|
|
|
2355 /************************************************************************/
|
|
2953
|
2356 /* Instantiation */
|
|
428
|
2357 /************************************************************************/
|
|
|
2358
|
|
|
2359 static Lisp_Object
|
|
|
2360 call_validate_matchspec_method (Lisp_Object boxed_method,
|
|
|
2361 Lisp_Object matchspec)
|
|
|
2362 {
|
|
|
2363 ((void (*)(Lisp_Object)) get_opaque_ptr (boxed_method)) (matchspec);
|
|
|
2364 return Qt;
|
|
|
2365 }
|
|
|
2366
|
|
|
2367 static Lisp_Object
|
|
|
2368 check_valid_specifier_matchspec (Lisp_Object matchspec,
|
|
|
2369 struct specifier_methods *meths,
|
|
578
|
2370 Error_Behavior errb)
|
|
428
|
2371 {
|
|
|
2372 if (meths->validate_matchspec_method)
|
|
|
2373 {
|
|
|
2374 Lisp_Object retval;
|
|
|
2375
|
|
|
2376 if (ERRB_EQ (errb, ERROR_ME))
|
|
|
2377 {
|
|
|
2378 (meths->validate_matchspec_method) (matchspec);
|
|
|
2379 retval = Qt;
|
|
|
2380 }
|
|
|
2381 else
|
|
|
2382 {
|
|
|
2383 Lisp_Object opaque =
|
|
|
2384 make_opaque_ptr ((void *) meths->validate_matchspec_method);
|
|
|
2385 struct gcpro gcpro1;
|
|
|
2386
|
|
|
2387 GCPRO1 (opaque);
|
|
|
2388 retval = call_with_suspended_errors
|
|
|
2389 ((lisp_fn_t) call_validate_matchspec_method,
|
|
|
2390 Qnil, Qspecifier, errb, 2, opaque, matchspec);
|
|
|
2391
|
|
|
2392 free_opaque_ptr (opaque);
|
|
|
2393 UNGCPRO;
|
|
|
2394 }
|
|
|
2395
|
|
|
2396 return retval;
|
|
|
2397 }
|
|
|
2398 else
|
|
|
2399 {
|
|
563
|
2400 maybe_sferror
|
|
428
|
2401 ("Matchspecs not allowed for this specifier type",
|
|
|
2402 intern (meths->name), Qspecifier, errb);
|
|
|
2403 return Qnil;
|
|
|
2404 }
|
|
|
2405 }
|
|
|
2406
|
|
442
|
2407 DEFUN ("check-valid-specifier-matchspec", Fcheck_valid_specifier_matchspec, 2,
|
|
|
2408 2, 0, /*
|
|
428
|
2409 Signal an error if MATCHSPEC is invalid for SPECIFIER-TYPE.
|
|
|
2410 See `specifier-matching-instance' for a description of matchspecs.
|
|
|
2411 */
|
|
|
2412 (matchspec, specifier_type))
|
|
|
2413 {
|
|
|
2414 struct specifier_methods *meths = decode_specifier_type (specifier_type,
|
|
|
2415 ERROR_ME);
|
|
|
2416
|
|
|
2417 return check_valid_specifier_matchspec (matchspec, meths, ERROR_ME);
|
|
|
2418 }
|
|
|
2419
|
|
|
2420 DEFUN ("valid-specifier-matchspec-p", Fvalid_specifier_matchspec_p, 2, 2, 0, /*
|
|
|
2421 Return non-nil if MATCHSPEC is valid for SPECIFIER-TYPE.
|
|
|
2422 See `specifier-matching-instance' for a description of matchspecs.
|
|
|
2423 */
|
|
|
2424 (matchspec, specifier_type))
|
|
|
2425 {
|
|
|
2426 struct specifier_methods *meths = decode_specifier_type (specifier_type,
|
|
|
2427 ERROR_ME);
|
|
|
2428
|
|
|
2429 return check_valid_specifier_matchspec (matchspec, meths, ERROR_ME_NOT);
|
|
|
2430 }
|
|
|
2431
|
|
|
2432 /* This function is purposely not callable from Lisp. If a Lisp
|
|
|
2433 caller wants to set a fallback, they should just set the
|
|
|
2434 global value. */
|
|
|
2435
|
|
|
2436 void
|
|
|
2437 set_specifier_fallback (Lisp_Object specifier, Lisp_Object fallback)
|
|
|
2438 {
|
|
440
|
2439 Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
428
|
2440 assert (SPECIFIERP (fallback) ||
|
|
|
2441 !NILP (Fvalid_inst_list_p (fallback, Fspecifier_type (specifier))));
|
|
|
2442 if (SPECIFIERP (fallback))
|
|
|
2443 assert (EQ (Fspecifier_type (specifier), Fspecifier_type (fallback)));
|
|
|
2444 if (BODILY_SPECIFIER_P (sp))
|
|
|
2445 GHOST_SPECIFIER(sp)->fallback = fallback;
|
|
|
2446 else
|
|
|
2447 sp->fallback = fallback;
|
|
|
2448 /* call the after-change method */
|
|
|
2449 MAYBE_SPECMETH (sp, after_change,
|
|
|
2450 (bodily_specifier (specifier), Qfallback));
|
|
|
2451 recompute_cached_specifier_everywhere (specifier);
|
|
|
2452 }
|
|
|
2453
|
|
|
2454 DEFUN ("specifier-fallback", Fspecifier_fallback, 1, 1, 0, /*
|
|
|
2455 Return the fallback value for SPECIFIER.
|
|
|
2456 Fallback values are provided by the C code for certain built-in
|
|
2953
|
2457 specifiers to make sure that instantiation won't fail even if all
|
|
428
|
2458 specs are removed from the specifier, or to implement simple
|
|
|
2459 inheritance behavior (e.g. this method is used to ensure that
|
|
2953
|
2460 faces other than `default' inherit their attributes from `default').
|
|
428
|
2461 By design, you cannot change the fallback value, and specifiers
|
|
|
2462 created with `make-specifier' will never have a fallback (although
|
|
|
2463 a similar, Lisp-accessible capability may be provided in the future
|
|
|
2464 to allow for inheritance).
|
|
|
2465
|
|
2953
|
2466 The fallback value will be an inst-list that is instantiated like
|
|
428
|
2467 any other inst-list, a specifier of the same type as SPECIFIER
|
|
|
2468 \(results in inheritance), or nil for no fallback.
|
|
|
2469
|
|
2953
|
2470 When you instantiate a specifier, you can explicitly request that the
|
|
428
|
2471 fallback not be consulted. (The C code does this, for example, when
|
|
|
2472 merging faces.) See `specifier-instance'.
|
|
|
2473 */
|
|
|
2474 (specifier))
|
|
|
2475 {
|
|
|
2476 CHECK_SPECIFIER (specifier);
|
|
|
2477 return Fcopy_tree (XSPECIFIER (specifier)->fallback, Qt);
|
|
|
2478 }
|
|
|
2479
|
|
|
2480 static Lisp_Object
|
|
|
2481 specifier_instance_from_inst_list (Lisp_Object specifier,
|
|
|
2482 Lisp_Object matchspec,
|
|
|
2483 Lisp_Object domain,
|
|
|
2484 Lisp_Object inst_list,
|
|
578
|
2485 Error_Behavior errb, int no_quit,
|
|
2953
|
2486 Lisp_Object depth,
|
|
|
2487 Lisp_Object *instantiator)
|
|
428
|
2488 {
|
|
|
2489 /* This function can GC */
|
|
440
|
2490 Lisp_Specifier *sp;
|
|
428
|
2491 Lisp_Object device;
|
|
|
2492 Lisp_Object rest;
|
|
|
2493 int count = specpdl_depth ();
|
|
|
2494 struct gcpro gcpro1, gcpro2;
|
|
|
2495
|
|
|
2496 GCPRO2 (specifier, inst_list);
|
|
|
2497
|
|
|
2498 sp = XSPECIFIER (specifier);
|
|
442
|
2499 device = DOMAIN_DEVICE (domain);
|
|
428
|
2500
|
|
|
2501 if (no_quit)
|
|
|
2502 /* The instantiate method is allowed to call eval. Since it
|
|
|
2503 is quite common for this function to get called from somewhere in
|
|
|
2504 redisplay we need to make sure that quits are ignored. Otherwise
|
|
|
2505 Fsignal will abort. */
|
|
|
2506 specbind (Qinhibit_quit, Qt);
|
|
|
2507
|
|
|
2508 LIST_LOOP (rest, inst_list)
|
|
|
2509 {
|
|
|
2510 Lisp_Object tagged_inst = XCAR (rest);
|
|
|
2511 Lisp_Object tag_set = XCAR (tagged_inst);
|
|
|
2512
|
|
|
2513 if (device_matches_specifier_tag_set_p (device, tag_set))
|
|
|
2514 {
|
|
|
2515 Lisp_Object val = XCDR (tagged_inst);
|
|
2953
|
2516 Lisp_Object the_instantiator = val;
|
|
|
2517
|
|
428
|
2518
|
|
|
2519 if (HAS_SPECMETH_P (sp, instantiate))
|
|
|
2520 val = call_with_suspended_errors
|
|
|
2521 ((lisp_fn_t) RAW_SPECMETH (sp, instantiate),
|
|
|
2522 Qunbound, Qspecifier, errb, 5, specifier,
|
|
|
2523 matchspec, domain, val, depth);
|
|
|
2524
|
|
|
2525 if (!UNBOUNDP (val))
|
|
|
2526 {
|
|
771
|
2527 unbind_to (count);
|
|
428
|
2528 UNGCPRO;
|
|
2953
|
2529 if (instantiator)
|
|
|
2530 *instantiator = the_instantiator;
|
|
428
|
2531 return val;
|
|
|
2532 }
|
|
|
2533 }
|
|
|
2534 }
|
|
|
2535
|
|
771
|
2536 unbind_to (count);
|
|
428
|
2537 UNGCPRO;
|
|
|
2538 return Qunbound;
|
|
|
2539 }
|
|
|
2540
|
|
|
2541 /* Given a SPECIFIER and a DOMAIN, return a specific instance for that
|
|
|
2542 specifier. Try to find one by checking the specifier types from most
|
|
|
2543 specific (buffer) to most general (global). If we find an instance,
|
|
|
2544 return it. Otherwise return Qunbound. */
|
|
|
2545
|
|
|
2546 #define CHECK_INSTANCE_ENTRY(key, matchspec, type) do { \
|
|
|
2547 Lisp_Object *CIE_inst_list = \
|
|
|
2548 specifier_get_inst_list (specifier, key, type); \
|
|
|
2549 if (CIE_inst_list) \
|
|
|
2550 { \
|
|
|
2551 Lisp_Object CIE_val = \
|
|
|
2552 specifier_instance_from_inst_list (specifier, matchspec, \
|
|
|
2553 domain, *CIE_inst_list, \
|
|
2953
|
2554 errb, no_quit, depth, \
|
|
|
2555 instantiator); \
|
|
428
|
2556 if (!UNBOUNDP (CIE_val)) \
|
|
|
2557 return CIE_val; \
|
|
|
2558 } \
|
|
|
2559 } while (0)
|
|
|
2560
|
|
|
2561 /* We accept any window, frame or device domain and do our checking
|
|
|
2562 starting from as specific a locale type as we can determine from the
|
|
|
2563 domain we are passed and going on up through as many other locale types
|
|
|
2564 as we can determine. In practice, when called from redisplay the
|
|
|
2565 arg will usually be a window and occasionally a frame. If
|
|
|
2566 triggered by a user call, who knows what it will usually be. */
|
|
2953
|
2567
|
|
|
2568 static Lisp_Object
|
|
|
2569 specifier_instance_1 (Lisp_Object specifier, Lisp_Object matchspec,
|
|
|
2570 Lisp_Object domain, Error_Behavior errb, int no_quit,
|
|
|
2571 int no_fallback, Lisp_Object depth,
|
|
|
2572 Lisp_Object *instantiator)
|
|
428
|
2573 {
|
|
|
2574 Lisp_Object buffer = Qnil;
|
|
|
2575 Lisp_Object window = Qnil;
|
|
|
2576 Lisp_Object frame = Qnil;
|
|
|
2577 Lisp_Object device = Qnil;
|
|
444
|
2578 Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
428
|
2579
|
|
2953
|
2580 if (instantiator)
|
|
|
2581 *instantiator = Qunbound;
|
|
|
2582
|
|
428
|
2583 /* Attempt to determine buffer, window, frame, and device from the
|
|
|
2584 domain. */
|
|
442
|
2585 /* #### get image instances out of domains! */
|
|
|
2586 if (IMAGE_INSTANCEP (domain))
|
|
|
2587 window = DOMAIN_WINDOW (domain);
|
|
|
2588 else if (WINDOWP (domain))
|
|
428
|
2589 window = domain;
|
|
|
2590 else if (FRAMEP (domain))
|
|
|
2591 frame = domain;
|
|
|
2592 else if (DEVICEP (domain))
|
|
|
2593 device = domain;
|
|
|
2594 else
|
|
442
|
2595 /* dmoore writes: [dammit, this should just signal an error or something
|
|
|
2596 shouldn't it?]
|
|
|
2597
|
|
|
2598 No. Errors are handled in Lisp primitives implementation.
|
|
428
|
2599 Invalid domain is a design error here - kkm. */
|
|
2500
|
2600 ABORT ();
|
|
428
|
2601
|
|
|
2602 if (NILP (buffer) && !NILP (window))
|
|
444
|
2603 buffer = WINDOW_BUFFER (XWINDOW (window));
|
|
428
|
2604 if (NILP (frame) && !NILP (window))
|
|
|
2605 frame = XWINDOW (window)->frame;
|
|
|
2606 if (NILP (device))
|
|
|
2607 /* frame had better exist; if device is undeterminable, something
|
|
|
2608 really went wrong. */
|
|
444
|
2609 device = FRAME_DEVICE (XFRAME (frame));
|
|
428
|
2610
|
|
|
2611 /* device had better be determined by now; abort if not. */
|
|
2286
|
2612 (void) DEVICE_CLASS (XDEVICE (device));
|
|
428
|
2613
|
|
|
2614 depth = make_int (1 + XINT (depth));
|
|
|
2615 if (XINT (depth) > 20)
|
|
|
2616 {
|
|
563
|
2617 maybe_signal_error (Qstack_overflow,
|
|
|
2618 "Apparent loop in specifier inheritance",
|
|
|
2619 Qunbound, Qspecifier, errb);
|
|
428
|
2620 /* The specification is fucked; at least try the fallback
|
|
|
2621 (which better not be fucked, because it's not changeable
|
|
|
2622 from Lisp). */
|
|
|
2623 depth = Qzero;
|
|
|
2624 goto do_fallback;
|
|
|
2625 }
|
|
|
2626
|
|
434
|
2627 retry:
|
|
428
|
2628 /* First see if we can generate one from the window specifiers. */
|
|
|
2629 if (!NILP (window))
|
|
|
2630 CHECK_INSTANCE_ENTRY (window, matchspec, LOCALE_WINDOW);
|
|
|
2631
|
|
|
2632 /* Next see if we can generate one from the buffer specifiers. */
|
|
|
2633 if (!NILP (buffer))
|
|
|
2634 CHECK_INSTANCE_ENTRY (buffer, matchspec, LOCALE_BUFFER);
|
|
|
2635
|
|
|
2636 /* Next see if we can generate one from the frame specifiers. */
|
|
|
2637 if (!NILP (frame))
|
|
|
2638 CHECK_INSTANCE_ENTRY (frame, matchspec, LOCALE_FRAME);
|
|
|
2639
|
|
|
2640 /* If we still haven't succeeded try with the device specifiers. */
|
|
|
2641 CHECK_INSTANCE_ENTRY (device, matchspec, LOCALE_DEVICE);
|
|
|
2642
|
|
|
2643 /* Last and least try the global specifiers. */
|
|
|
2644 CHECK_INSTANCE_ENTRY (Qglobal, matchspec, LOCALE_GLOBAL);
|
|
|
2645
|
|
434
|
2646 do_fallback:
|
|
428
|
2647 /* We're out of specifiers and we still haven't generated an
|
|
|
2648 instance. At least try the fallback ... If this fails,
|
|
|
2649 then we just return Qunbound. */
|
|
|
2650
|
|
|
2651 if (no_fallback || NILP (sp->fallback))
|
|
|
2652 /* I said, I don't want the fallbacks. */
|
|
|
2653 return Qunbound;
|
|
|
2654
|
|
|
2655 if (SPECIFIERP (sp->fallback))
|
|
|
2656 {
|
|
|
2657 /* If you introduced loops in the default specifier chain,
|
|
|
2658 then you're fucked, so you better not do this. */
|
|
|
2659 specifier = sp->fallback;
|
|
|
2660 sp = XSPECIFIER (specifier);
|
|
|
2661 goto retry;
|
|
|
2662 }
|
|
|
2663
|
|
|
2664 assert (CONSP (sp->fallback));
|
|
|
2665 return specifier_instance_from_inst_list (specifier, matchspec, domain,
|
|
|
2666 sp->fallback, errb, no_quit,
|
|
2953
|
2667 depth, instantiator);
|
|
428
|
2668 }
|
|
|
2669 #undef CHECK_INSTANCE_ENTRY
|
|
|
2670
|
|
|
2671 Lisp_Object
|
|
2953
|
2672 specifier_instance (Lisp_Object specifier, Lisp_Object matchspec,
|
|
|
2673 Lisp_Object domain, Error_Behavior errb, int no_quit,
|
|
|
2674 int no_fallback, Lisp_Object depth)
|
|
|
2675 {
|
|
|
2676 return specifier_instance_1 (specifier, matchspec, domain, errb,
|
|
|
2677 no_quit, no_fallback, depth, NULL);
|
|
|
2678 }
|
|
|
2679
|
|
|
2680 Lisp_Object
|
|
428
|
2681 specifier_instance_no_quit (Lisp_Object specifier, Lisp_Object matchspec,
|
|
578
|
2682 Lisp_Object domain, Error_Behavior errb,
|
|
428
|
2683 int no_fallback, Lisp_Object depth)
|
|
|
2684 {
|
|
2953
|
2685 return specifier_instance_1 (specifier, matchspec, domain, errb,
|
|
|
2686 1, no_fallback, depth, NULL);
|
|
|
2687 }
|
|
|
2688
|
|
|
2689 static Lisp_Object
|
|
|
2690 specifier_matching_foo (Lisp_Object specifier,
|
|
|
2691 Lisp_Object matchspec,
|
|
|
2692 Lisp_Object domain,
|
|
|
2693 Lisp_Object default_,
|
|
|
2694 Lisp_Object no_fallback,
|
|
|
2695 int want_instantiator)
|
|
|
2696 {
|
|
|
2697 Lisp_Object instance, instantiator;
|
|
|
2698
|
|
|
2699 CHECK_SPECIFIER (specifier);
|
|
|
2700 if (!UNBOUNDP (matchspec))
|
|
|
2701 check_valid_specifier_matchspec (matchspec,
|
|
|
2702 XSPECIFIER (specifier)->methods,
|
|
|
2703 ERROR_ME);
|
|
|
2704 domain = decode_domain (domain);
|
|
|
2705
|
|
|
2706 instance = specifier_instance_1 (specifier, matchspec, domain, ERROR_ME,
|
|
|
2707 0, !NILP (no_fallback), Qzero,
|
|
|
2708 &instantiator);
|
|
|
2709 return UNBOUNDP (instance) ? default_ : want_instantiator ? instantiator :
|
|
|
2710 instance;
|
|
428
|
2711 }
|
|
|
2712
|
|
|
2713 DEFUN ("specifier-instance", Fspecifier_instance, 1, 4, 0, /*
|
|
|
2714 Instantiate SPECIFIER (return its value) in DOMAIN.
|
|
|
2715 If no instance can be generated for this domain, return DEFAULT.
|
|
|
2716
|
|
2953
|
2717 DOMAIN is nearly always a window (defaulting to the selected window if
|
|
|
2718 omitted), but can be a window, frame, or device. Other values that are legal
|
|
428
|
2719 as a locale (e.g. a buffer) are not valid as a domain because they do not
|
|
|
2720 provide enough information to identify a particular device (see
|
|
2953
|
2721 `valid-specifier-domain-p'). Window domains are used internally in nearly
|
|
|
2722 all circumstances when computing specifier instances of display properties.
|
|
|
2723 Frame domains are used in a few circumstances (such as when computing the
|
|
|
2724 geometry of a frame based on properties such as the toolbar widths), and
|
|
|
2725 device domains are rarely if ever used internally.
|
|
|
2726
|
|
|
2727 This function looks through the specifications in SPECIFIER that correspond
|
|
|
2728 to DOMAIN, from most specific (specifications for DOMAIN itself) to most
|
|
|
2729 general (global specifications), for matching instantiators, and attempts
|
|
|
2730 to compute an instance value for each instantiator found. The first
|
|
|
2731 successfully computed value is returned. The corresponding instantiator
|
|
|
2732 can be returned using `specifier-instantiator'.
|
|
|
2733
|
|
|
2734 A specifier is a generalized object for controlling the value of a property --
|
|
|
2735 typically, but not necessarily, a display-related property -- that can vary
|
|
|
2736 over particular buffers, frames, device types, etc.
|
|
|
2737
|
|
|
2738 A fundamental distinction must be made between the specification of a
|
|
|
2739 property's value, and the resulting value itself. This distinction is
|
|
|
2740 clearest in the case of an image -- the specification describes the source
|
|
|
2741 of the image (for example, a file of JPEG data), and the resulting value
|
|
|
2742 encapsulates a window-system object describing the image as displayed on a
|
|
|
2743 particular device (for example, a particular X display). The specification
|
|
|
2744 might also be an instruction of the form "use the background pixmap of the
|
|
|
2745 `modeline' face". A similar mapping exists between color strings and
|
|
|
2746 color-instance objects, and font strings and font-instance objects. In
|
|
|
2747 some cases, the specification and the resulting value are of the same type,
|
|
|
2748 but the distinction is still logically made.
|
|
|
2749
|
|
|
2750 The specification of a value is called an instantiator, and the resulting
|
|
|
2751 value the instance.
|
|
428
|
2752
|
|
|
2753 "Instantiating" a specifier in a particular domain means determining
|
|
|
2754 the specifier's "value" in that domain. This is accomplished by
|
|
|
2755 searching through the specifications in the specifier that correspond
|
|
|
2756 to all locales that can be derived from the given domain, from specific
|
|
|
2757 to general. In most cases, the domain is an Emacs window. In that case
|
|
|
2758 specifications are searched for as follows:
|
|
|
2759
|
|
|
2760 1. A specification whose locale is the window itself;
|
|
|
2761 2. A specification whose locale is the window's buffer;
|
|
|
2762 3. A specification whose locale is the window's frame;
|
|
|
2763 4. A specification whose locale is the window's frame's device;
|
|
2953
|
2764 5. A specification whose locale is `global'.
|
|
428
|
2765
|
|
|
2766 If all of those fail, then the C-code-provided fallback value for
|
|
|
2767 this specifier is consulted (see `specifier-fallback'). If it is
|
|
|
2768 an inst-list, then this function attempts to instantiate that list
|
|
|
2769 just as when a specification is located in the first five steps above.
|
|
|
2770 If the fallback is a specifier, `specifier-instance' is called
|
|
|
2771 recursively on this specifier and the return value used. Note,
|
|
|
2772 however, that if the optional argument NO-FALLBACK is non-nil,
|
|
|
2773 the fallback value will not be consulted.
|
|
|
2774
|
|
|
2775 Note that there may be more than one specification matching a particular
|
|
|
2776 locale; all such specifications are considered before looking for any
|
|
|
2777 specifications for more general locales. Any particular specification
|
|
|
2778 that is found may be rejected because its tag set does not match the
|
|
|
2779 device being instantiated over, or because the specification is not
|
|
|
2780 valid for the device of the given domain (e.g. the font or color name
|
|
|
2781 does not exist for this particular X server).
|
|
|
2782
|
|
793
|
2783 NOTE: When errors occur in the process of trying a particular instantiator,
|
|
|
2784 and the instantiator is thus skipped, warnings will be issued at level
|
|
|
2785 `debug'. Normally, such warnings are ignored entirely, but you can change
|
|
|
2786 this by setting `log-warning-minimum-level'. This is useful if you're
|
|
|
2787 trying to debug why particular instantiators are not being processed.
|
|
|
2788
|
|
428
|
2789 The returned value is dependent on the type of specifier. For example,
|
|
|
2790 for a font specifier (as returned by the `face-font' function), the returned
|
|
|
2791 value will be a font-instance object. For glyphs, the returned value
|
|
2953
|
2792 will be an image-instance object.
|
|
428
|
2793
|
|
|
2794 See also `specifier-matching-instance'.
|
|
|
2795 */
|
|
|
2796 (specifier, domain, default_, no_fallback))
|
|
|
2797 {
|
|
2953
|
2798 return specifier_matching_foo (specifier, Qunbound, domain, default_,
|
|
|
2799 no_fallback, 0);
|
|
|
2800 }
|
|
|
2801
|
|
|
2802 DEFUN ("specifier-instantiator", Fspecifier_instantiator, 1, 4, 0, /*
|
|
|
2803 Return instantiator that would be used to instantiate SPECIFIER in DOMAIN.
|
|
|
2804 If no instance can be generated for this domain, return DEFAULT.
|
|
|
2805
|
|
|
2806 DOMAIN should be a window, frame, or device. Other values that are legal
|
|
|
2807 as a locale (e.g. a buffer) are not valid as a domain because they do not
|
|
|
2808 provide enough information to identify a particular device (see
|
|
|
2809 `valid-specifier-domain-p'). DOMAIN defaults to the selected window
|
|
|
2810 if omitted.
|
|
|
2811
|
|
|
2812 See `specifier-instance' for more information about the instantiation process.
|
|
|
2813 */
|
|
|
2814 (specifier, domain, default_, no_fallback))
|
|
|
2815 {
|
|
|
2816 return specifier_matching_foo (specifier, Qunbound, domain, default_,
|
|
|
2817 no_fallback, 1);
|
|
428
|
2818 }
|
|
|
2819
|
|
|
2820 DEFUN ("specifier-matching-instance", Fspecifier_matching_instance, 2, 5, 0, /*
|
|
|
2821 Return an instance for SPECIFIER in DOMAIN that matches MATCHSPEC.
|
|
|
2822 If no instance can be generated for this domain, return DEFAULT.
|
|
|
2823
|
|
|
2824 This function is identical to `specifier-instance' except that a
|
|
|
2825 specification will only be considered if it matches MATCHSPEC.
|
|
|
2826 The definition of "match", and allowed values for MATCHSPEC, are
|
|
|
2827 dependent on the particular type of specifier. Here are some examples:
|
|
|
2828
|
|
|
2829 -- For chartable (e.g. display table) specifiers, MATCHSPEC should be a
|
|
|
2830 character, and the specification (a chartable) must give a value for
|
|
|
2831 that character in order to be considered. This allows you to specify,
|
|
|
2832 e.g., a buffer-local display table that only gives values for particular
|
|
|
2833 characters. All other characters are handled as if the buffer-local
|
|
|
2834 display table is not there. (Chartable specifiers are not yet
|
|
|
2835 implemented.)
|
|
|
2836
|
|
872
|
2837 -- For font specifiers, MATCHSPEC should be a list (CHARSET . SECOND-STAGE-P),
|
|
|
2838 and the specification (a font string) must have a registry that matches
|
|
|
2839 the charset's registry. (This only makes sense with Mule support.) This
|
|
|
2840 makes it easy to choose a font that can display a particular
|
|
|
2841 character. (This is what redisplay does, in fact.) SECOND-STAGE-P means
|
|
|
2842 to ignore the font's registry and instead look at the characters in the
|
|
|
2843 font to see if the font can support the charset. This currently only makes
|
|
|
2844 sense under MS Windows.
|
|
428
|
2845 */
|
|
|
2846 (specifier, matchspec, domain, default_, no_fallback))
|
|
|
2847 {
|
|
2953
|
2848 return specifier_matching_foo (specifier, matchspec, domain, default_,
|
|
|
2849 no_fallback, 0);
|
|
|
2850 }
|
|
|
2851
|
|
|
2852 DEFUN ("specifier-matching-instantiator", Fspecifier_matching_instantiator,
|
|
|
2853 2, 5, 0, /*
|
|
|
2854 Return instantiator for instance of SPECIFIER in DOMAIN that matches MATCHSPEC.
|
|
|
2855 If no instance can be generated for this domain, return DEFAULT.
|
|
|
2856
|
|
|
2857 This function is identical to `specifier-matching-instance' but returns
|
|
|
2858 the instantiator used to generate the instance, rather than the actual
|
|
|
2859 instance.
|
|
|
2860 */
|
|
|
2861 (specifier, matchspec, domain, default_, no_fallback))
|
|
|
2862 {
|
|
|
2863 return specifier_matching_foo (specifier, matchspec, domain, default_,
|
|
|
2864 no_fallback, 1);
|
|
|
2865 }
|
|
|
2866
|
|
|
2867 static Lisp_Object
|
|
|
2868 specifier_matching_foo_from_inst_list (Lisp_Object specifier,
|
|
|
2869 Lisp_Object matchspec,
|
|
|
2870 Lisp_Object domain,
|
|
|
2871 Lisp_Object inst_list,
|
|
|
2872 Lisp_Object default_,
|
|
|
2873 int want_instantiator)
|
|
|
2874 {
|
|
|
2875 Lisp_Object val = Qunbound;
|
|
|
2876 Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
|
2877 struct gcpro gcpro1;
|
|
|
2878 Lisp_Object built_up_list = Qnil;
|
|
|
2879 Lisp_Object instantiator;
|
|
428
|
2880
|
|
|
2881 CHECK_SPECIFIER (specifier);
|
|
2953
|
2882 if (!UNBOUNDP (matchspec))
|
|
|
2883 check_valid_specifier_matchspec (matchspec,
|
|
|
2884 XSPECIFIER (specifier)->methods,
|
|
|
2885 ERROR_ME);
|
|
|
2886 check_valid_domain (domain);
|
|
|
2887 check_valid_inst_list (inst_list, sp->methods, ERROR_ME);
|
|
|
2888 GCPRO1 (built_up_list);
|
|
|
2889 built_up_list = build_up_processed_list (specifier, domain, inst_list);
|
|
|
2890 if (!NILP (built_up_list))
|
|
|
2891 val = specifier_instance_from_inst_list (specifier, matchspec, domain,
|
|
|
2892 built_up_list, ERROR_ME,
|
|
|
2893 0, Qzero, &instantiator);
|
|
|
2894 UNGCPRO;
|
|
|
2895 return UNBOUNDP (val) ? default_ : want_instantiator ? instantiator : val;
|
|
|
2896
|
|
428
|
2897 }
|
|
|
2898
|
|
|
2899 DEFUN ("specifier-instance-from-inst-list", Fspecifier_instance_from_inst_list,
|
|
|
2900 3, 4, 0, /*
|
|
|
2901 Attempt to convert a particular inst-list into an instance.
|
|
|
2902 This attempts to instantiate INST-LIST in the given DOMAIN,
|
|
|
2903 as if INST-LIST existed in a specification in SPECIFIER. If
|
|
|
2904 the instantiation fails, DEFAULT is returned. In most circumstances,
|
|
|
2905 you should not use this function; use `specifier-instance' instead.
|
|
|
2906 */
|
|
|
2907 (specifier, domain, inst_list, default_))
|
|
|
2908 {
|
|
2953
|
2909 return specifier_matching_foo_from_inst_list (specifier, Qunbound,
|
|
|
2910 domain, inst_list, default_,
|
|
|
2911 0);
|
|
|
2912 }
|
|
|
2913
|
|
|
2914 DEFUN ("specifier-instantiator-from-inst-list", Fspecifier_instantiator_from_inst_list,
|
|
|
2915 3, 4, 0, /*
|
|
|
2916 Attempt to convert an inst-list into an instance; return instantiator.
|
|
|
2917 This is identical to `specifier-instance-from-inst-list' but returns
|
|
|
2918 the instantiator used to generate the instance, rather than the instance
|
|
|
2919 itself.
|
|
|
2920 */
|
|
|
2921 (specifier, domain, inst_list, default_))
|
|
|
2922 {
|
|
|
2923 return specifier_matching_foo_from_inst_list (specifier, Qunbound,
|
|
|
2924 domain, inst_list, default_,
|
|
|
2925 1);
|
|
428
|
2926 }
|
|
|
2927
|
|
442
|
2928 DEFUN ("specifier-matching-instance-from-inst-list",
|
|
|
2929 Fspecifier_matching_instance_from_inst_list,
|
|
428
|
2930 4, 5, 0, /*
|
|
|
2931 Attempt to convert a particular inst-list into an instance.
|
|
|
2932 This attempts to instantiate INST-LIST in the given DOMAIN
|
|
|
2933 \(as if INST-LIST existed in a specification in SPECIFIER),
|
|
|
2934 matching the specifications against MATCHSPEC.
|
|
|
2935
|
|
|
2936 This function is analogous to `specifier-instance-from-inst-list'
|
|
|
2937 but allows for specification-matching as in `specifier-matching-instance'.
|
|
|
2938 See that function for a description of exactly how the matching process
|
|
|
2939 works.
|
|
|
2940 */
|
|
|
2941 (specifier, matchspec, domain, inst_list, default_))
|
|
|
2942 {
|
|
2953
|
2943 return specifier_matching_foo_from_inst_list (specifier, matchspec,
|
|
|
2944 domain, inst_list, default_,
|
|
|
2945 0);
|
|
|
2946 }
|
|
|
2947
|
|
|
2948 DEFUN ("specifier-matching-instantiator-from-inst-list",
|
|
|
2949 Fspecifier_matching_instantiator_from_inst_list,
|
|
|
2950 4, 5, 0, /*
|
|
|
2951 Attempt to convert an inst-list into an instance; return instantiator.
|
|
|
2952 This is identical to `specifier-matching-instance-from-inst-list' but returns
|
|
|
2953 the instantiator used to generate the instance, rather than the instance
|
|
|
2954 itself.
|
|
|
2955 */
|
|
|
2956 (specifier, matchspec, domain, inst_list, default_))
|
|
|
2957 {
|
|
|
2958 return specifier_matching_foo_from_inst_list (specifier, matchspec,
|
|
|
2959 domain, inst_list, default_,
|
|
|
2960 1);
|
|
428
|
2961 }
|
|
|
2962
|
|
|
2963
|
|
|
2964 /************************************************************************/
|
|
|
2965 /* Caching in the struct window or frame */
|
|
|
2966 /************************************************************************/
|
|
|
2967
|
|
853
|
2968 /* Cause the current value of SPECIFIER in the domain of each frame and/or
|
|
|
2969 window to be cached in the struct frame at STRUCT_FRAME_OFFSET and the
|
|
|
2970 struct window at STRUCT_WINDOW_OFFSET. When the value changes in a
|
|
|
2971 particular window, VALUE_CHANGED_IN_WINDOW is called. When the value
|
|
|
2972 changes in a particular frame, VALUE_CHANGED_IN_FRAME is called.
|
|
|
2973
|
|
|
2974 Either STRUCT_WINDOW_OFFSET or STRUCT_FRAME_OFFSET can be 0 to indicate
|
|
|
2975 no caching in that sort of object. However, if they're not 0, you
|
|
|
2976 must supply a corresponding value-changed function. (This is the case
|
|
|
2977 so that you are forced to consider the ramifications of a value change.
|
|
|
2978 You nearly always need to do something, e.g. set a dirty flag.)
|
|
|
2979
|
|
|
2980 If you create a built-in specifier, you should do the following:
|
|
|
2981
|
|
|
2982 - Make sure the file you create the specifier in has a
|
|
|
2983 specifier_vars_of_foo() function. If not, create it, declare it in
|
|
|
2984 symsinit.h, and make sure it's called in the appropriate place in
|
|
|
2985 emacs.c.
|
|
|
2986 - In specifier_vars_of_foo(), do a DEFVAR_SPECIFIER(), followed by
|
|
|
2987 initializing the specifier using Fmake_specifier(), followed by
|
|
|
2988 set_specifier_fallback(), followed (optionally) by
|
|
|
2989 set_specifier_caching().
|
|
|
2990 - If you used set_specifier_caching(), make sure to create the
|
|
|
2991 appropriate value-changed functions. Also make sure to add the
|
|
|
2992 appropriate slots where the values are cached to frameslots.h and
|
|
|
2993 winslots.h.
|
|
|
2994
|
|
|
2995 Do a grep for menubar_visible_p for an example.
|
|
|
2996 */
|
|
428
|
2997
|
|
|
2998 /* #### It would be nice if the specifier caching automatically knew
|
|
|
2999 about specifier fallbacks, so we didn't have to do it ourselves. */
|
|
|
3000
|
|
|
3001 void
|
|
|
3002 set_specifier_caching (Lisp_Object specifier, int struct_window_offset,
|
|
|
3003 void (*value_changed_in_window)
|
|
|
3004 (Lisp_Object specifier, struct window *w,
|
|
|
3005 Lisp_Object oldval),
|
|
|
3006 int struct_frame_offset,
|
|
|
3007 void (*value_changed_in_frame)
|
|
|
3008 (Lisp_Object specifier, struct frame *f,
|
|
444
|
3009 Lisp_Object oldval),
|
|
|
3010 int always_recompute)
|
|
428
|
3011 {
|
|
440
|
3012 Lisp_Specifier *sp = XSPECIFIER (specifier);
|
|
428
|
3013 assert (!GHOST_SPECIFIER_P (sp));
|
|
|
3014
|
|
|
3015 if (!sp->caching)
|
|
3092
|
3016 #ifdef NEW_GC
|
|
|
3017 sp->caching = alloc_lrecord_type (struct specifier_caching,
|
|
|
3018 &lrecord_specifier_caching);
|
|
|
3019 #else /* not NEW_GC */
|
|
428
|
3020 sp->caching = xnew_and_zero (struct specifier_caching);
|
|
3092
|
3021 #endif /* not NEW_GC */
|
|
428
|
3022 sp->caching->offset_into_struct_window = struct_window_offset;
|
|
|
3023 sp->caching->value_changed_in_window = value_changed_in_window;
|
|
|
3024 sp->caching->offset_into_struct_frame = struct_frame_offset;
|
|
|
3025 sp->caching->value_changed_in_frame = value_changed_in_frame;
|
|
853
|
3026 if (struct_window_offset)
|
|
|
3027 assert (value_changed_in_window);
|
|
|
3028 if (struct_frame_offset)
|
|
|
3029 assert (value_changed_in_frame);
|
|
444
|
3030 sp->caching->always_recompute = always_recompute;
|
|
428
|
3031 Vcached_specifiers = Fcons (specifier, Vcached_specifiers);
|
|
|
3032 if (BODILY_SPECIFIER_P (sp))
|
|
|
3033 GHOST_SPECIFIER(sp)->caching = sp->caching;
|
|
|
3034 recompute_cached_specifier_everywhere (specifier);
|
|
|
3035 }
|
|
|
3036
|
|
|
3037 static void
|
|
|
3038 recompute_one_cached_specifier_in_window (Lisp_Object specifier,
|
|
|
3039 struct window *w)
|
|
|
3040 {
|
|
|
3041 Lisp_Object window;
|
|
444
|
3042 Lisp_Object newval, *location, oldval;
|
|
428
|
3043
|
|
|
3044 assert (!GHOST_SPECIFIER_P (XSPECIFIER (specifier)));
|
|
|
3045
|
|
793
|
3046 window = wrap_window (w);
|
|
428
|
3047
|
|
|
3048 newval = specifier_instance (specifier, Qunbound, window, ERROR_ME_WARN,
|
|
|
3049 0, 0, Qzero);
|
|
|
3050 /* If newval ended up Qunbound, then the calling functions
|
|
|
3051 better be able to deal. If not, set a default so this
|
|
|
3052 never happens or correct it in the value_changed_in_window
|
|
|
3053 method. */
|
|
|
3054 location = (Lisp_Object *)
|
|
|
3055 ((char *) w + XSPECIFIER (specifier)->caching->offset_into_struct_window);
|
|
442
|
3056 /* #### What's the point of this check, other than to optimize image
|
|
|
3057 instance instantiation? Unless you specify a caching instantiate
|
|
|
3058 method the instantiation that specifier_instance will do will
|
|
|
3059 always create a new copy. Thus EQ will always fail. Unfortunately
|
|
|
3060 calling equal is no good either as this doesn't take into account
|
|
|
3061 things attached to the specifier - for instance strings on
|
|
|
3062 extents. --andyp */
|
|
444
|
3063 if (!EQ (newval, *location) || XSPECIFIER (specifier)->caching->always_recompute)
|
|
428
|
3064 {
|
|
444
|
3065 oldval = *location;
|
|
428
|
3066 *location = newval;
|
|
|
3067 (XSPECIFIER (specifier)->caching->value_changed_in_window)
|
|
|
3068 (specifier, w, oldval);
|
|
|
3069 }
|
|
|
3070 }
|
|
|
3071
|
|
|
3072 static void
|
|
|
3073 recompute_one_cached_specifier_in_frame (Lisp_Object specifier,
|
|
|
3074 struct frame *f)
|
|
|
3075 {
|
|
|
3076 Lisp_Object frame;
|
|
444
|
3077 Lisp_Object newval, *location, oldval;
|
|
428
|
3078
|
|
|
3079 assert (!GHOST_SPECIFIER_P (XSPECIFIER (specifier)));
|
|
|
3080
|
|
793
|
3081 frame = wrap_frame (f);
|
|
428
|
3082
|
|
|
3083 newval = specifier_instance (specifier, Qunbound, frame, ERROR_ME_WARN,
|
|
|
3084 0, 0, Qzero);
|
|
|
3085 /* If newval ended up Qunbound, then the calling functions
|
|
|
3086 better be able to deal. If not, set a default so this
|
|
|
3087 never happens or correct it in the value_changed_in_frame
|
|
|
3088 method. */
|
|
|
3089 location = (Lisp_Object *)
|
|
|
3090 ((char *) f + XSPECIFIER (specifier)->caching->offset_into_struct_frame);
|
|
444
|
3091 if (!EQ (newval, *location) || XSPECIFIER (specifier)->caching->always_recompute)
|
|
428
|
3092 {
|
|
444
|
3093 oldval = *location;
|
|
428
|
3094 *location = newval;
|
|
|
3095 (XSPECIFIER (specifier)->caching->value_changed_in_frame)
|
|
|
3096 (specifier, f, oldval);
|
|
|
3097 }
|
|
|
3098 }
|
|
|
3099
|
|
|
3100 void
|
|
|
3101 recompute_all_cached_specifiers_in_window (struct window *w)
|
|
|
3102 {
|
|
|
3103 Lisp_Object rest;
|
|
|
3104
|
|
|
3105 LIST_LOOP (rest, Vcached_specifiers)
|
|
|
3106 {
|
|
|
3107 Lisp_Object specifier = XCAR (rest);
|
|
|
3108 if (XSPECIFIER (specifier)->caching->offset_into_struct_window)
|
|
|
3109 recompute_one_cached_specifier_in_window (specifier, w);
|
|
|
3110 }
|
|
|
3111 }
|
|
|
3112
|
|
|
3113 void
|
|
|
3114 recompute_all_cached_specifiers_in_frame (struct frame *f)
|
|
|
3115 {
|
|
|
3116 Lisp_Object rest;
|
|
|
3117
|
|
|
3118 LIST_LOOP (rest, Vcached_specifiers)
|
|
|
3119 {
|
|
|
3120 Lisp_Object specifier = XCAR (rest);
|
|
|
3121 if (XSPECIFIER (specifier)->caching->offset_into_struct_frame)
|
|
|
3122 recompute_one_cached_specifier_in_frame (specifier, f);
|
|
|
3123 }
|
|
|
3124 }
|
|
|
3125
|
|
|
3126 static int
|
|
|
3127 recompute_cached_specifier_everywhere_mapfun (struct window *w,
|
|
|
3128 void *closure)
|
|
|
3129 {
|
|
|
3130 Lisp_Object specifier = Qnil;
|
|
|
3131
|
|
826
|
3132 specifier = VOID_TO_LISP (closure);
|
|
428
|
3133 recompute_one_cached_specifier_in_window (specifier, w);
|
|
|
3134 return 0;
|
|
|
3135 }
|
|
|
3136
|
|
|
3137 static void
|
|
|
3138 recompute_cached_specifier_everywhere (Lisp_Object specifier)
|
|
|
3139 {
|
|
|
3140 Lisp_Object frmcons, devcons, concons;
|
|
|
3141
|
|
|
3142 specifier = bodily_specifier (specifier);
|
|
|
3143
|
|
|
3144 if (!XSPECIFIER (specifier)->caching)
|
|
|
3145 return;
|
|
|
3146
|
|
|
3147 if (XSPECIFIER (specifier)->caching->offset_into_struct_window)
|
|
|
3148 {
|
|
|
3149 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons)
|
|
|
3150 map_windows (XFRAME (XCAR (frmcons)),
|
|
|
3151 recompute_cached_specifier_everywhere_mapfun,
|
|
|
3152 LISP_TO_VOID (specifier));
|
|
|
3153 }
|
|
|
3154
|
|
|
3155 if (XSPECIFIER (specifier)->caching->offset_into_struct_frame)
|
|
|
3156 {
|
|
|
3157 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons)
|
|
|
3158 recompute_one_cached_specifier_in_frame (specifier,
|
|
|
3159 XFRAME (XCAR (frmcons)));
|
|
|
3160 }
|
|
|
3161 }
|
|
|
3162
|
|
|
3163 DEFUN ("set-specifier-dirty-flag", Fset_specifier_dirty_flag, 1, 1, 0, /*
|
|
|
3164 Force recomputation of any caches associated with SPECIFIER.
|
|
|
3165 Note that this automatically happens whenever you change a specification
|
|
|
3166 in SPECIFIER; you do not have to call this function then.
|
|
|
3167 One example of where this function is useful is when you have a
|
|
|
3168 toolbar button whose `active-p' field is an expression to be
|
|
|
3169 evaluated. Calling `set-specifier-dirty-flag' on the
|
|
|
3170 toolbar specifier will force the `active-p' fields to be
|
|
|
3171 recomputed.
|
|
|
3172 */
|
|
|
3173 (specifier))
|
|
|
3174 {
|
|
|
3175 CHECK_SPECIFIER (specifier);
|
|
|
3176 recompute_cached_specifier_everywhere (specifier);
|
|
|
3177 return Qnil;
|
|
|
3178 }
|
|
|
3179
|
|
|
3180
|
|
|
3181 /************************************************************************/
|
|
|
3182 /* Generic specifier type */
|
|
|
3183 /************************************************************************/
|
|
|
3184
|
|
|
3185 DEFINE_SPECIFIER_TYPE (generic);
|
|
|
3186
|
|
|
3187 #if 0
|
|
|
3188
|
|
|
3189 /* This is the string that used to be in `generic-specifier-p'.
|
|
|
3190 The idea is good, but it doesn't quite work in the form it's
|
|
|
3191 in. (One major problem is that validating an instantiator
|
|
|
3192 is supposed to require only that the specifier type is passed,
|
|
|
3193 while with this approach the actual specifier is needed.)
|
|
|
3194
|
|
|
3195 What really needs to be done is to write a function
|
|
|
3196 `make-specifier-type' that creates new specifier types.
|
|
442
|
3197
|
|
|
3198 #### [I'll look into this for 19.14.] Well, sometime. (Currently
|
|
|
3199 May 2000, 21.2 is in development. 19.14 was released in June 1996.) */
|
|
428
|
3200
|
|
|
3201 "A generic specifier is a generalized kind of specifier with user-defined\n"
|
|
|
3202 "semantics. The instantiator can be any kind of Lisp object, and the\n"
|
|
|
3203 "instance computed from it is likewise any kind of Lisp object. The\n"
|
|
|
3204 "SPECIFIER-DATA should be an alist of methods governing how the specifier\n"
|
|
|
3205 "works. All methods are optional, and reasonable default methods will be\n"
|
|
2953
|
3206 "provided. Currently there are two defined methods: `instantiate' and\n"
|
|
|
3207 "`validate'.\n"
|
|
428
|
3208 "\n"
|
|
2953
|
3209 "`instantiate' specifies how to do the instantiation; if omitted, the\n"
|
|
428
|
3210 "instantiator itself is simply returned as the instance. The method\n"
|
|
|
3211 "should be a function that accepts three parameters (a specifier, the\n"
|
|
|
3212 "instantiator that matched the domain being instantiated over, and that\n"
|
|
|
3213 "domain), and should return a one-element list containing the instance,\n"
|
|
|
3214 "or nil if no instance exists. Note that the domain passed to this function\n"
|
|
|
3215 "is the domain being instantiated over, which may not be the same as the\n"
|
|
|
3216 "locale contained in the specification corresponding to the instantiator\n"
|
|
|
3217 "(for example, the domain being instantiated over could be a window, but\n"
|
|
|
3218 "the locale corresponding to the passed instantiator could be the window's\n"
|
|
|
3219 "buffer or frame).\n"
|
|
|
3220 "\n"
|
|
2953
|
3221 "`validate' specifies whether a given instantiator is valid; if omitted,\n"
|
|
428
|
3222 "all instantiators are considered valid. It should be a function of\n"
|
|
|
3223 "two arguments: an instantiator and a flag CAN-SIGNAL-ERROR. If this\n"
|
|
|
3224 "flag is false, the function must simply return t or nil indicating\n"
|
|
|
3225 "whether the instantiator is valid. If this flag is true, the function\n"
|
|
|
3226 "is free to signal an error if it encounters an invalid instantiator\n"
|
|
|
3227 "(this can be useful for issuing a specific error about exactly why the\n"
|
|
|
3228 "instantiator is valid). It can also return nil to indicate an invalid\n"
|
|
|
3229 "instantiator; in this case, a general error will be signalled."
|
|
|
3230
|
|
|
3231 #endif /* 0 */
|
|
|
3232
|
|
|
3233 DEFUN ("generic-specifier-p", Fgeneric_specifier_p, 1, 1, 0, /*
|
|
|
3234 Return non-nil if OBJECT is a generic specifier.
|
|
|
3235
|
|
442
|
3236 See `make-generic-specifier' for a description of possible generic
|
|
|
3237 instantiators.
|
|
428
|
3238 */
|
|
|
3239 (object))
|
|
|
3240 {
|
|
|
3241 return GENERIC_SPECIFIERP (object) ? Qt : Qnil;
|
|
|
3242 }
|
|
|
3243
|
|
|
3244
|
|
|
3245 /************************************************************************/
|
|
|
3246 /* Integer specifier type */
|
|
|
3247 /************************************************************************/
|
|
|
3248
|
|
|
3249 DEFINE_SPECIFIER_TYPE (integer);
|
|
|
3250
|
|
|
3251 static void
|
|
|
3252 integer_validate (Lisp_Object instantiator)
|
|
|
3253 {
|
|
|
3254 CHECK_INT (instantiator);
|
|
|
3255 }
|
|
|
3256
|
|
|
3257 DEFUN ("integer-specifier-p", Finteger_specifier_p, 1, 1, 0, /*
|
|
|
3258 Return non-nil if OBJECT is an integer specifier.
|
|
442
|
3259
|
|
|
3260 See `make-integer-specifier' for a description of possible integer
|
|
|
3261 instantiators.
|
|
428
|
3262 */
|
|
|
3263 (object))
|
|
|
3264 {
|
|
|
3265 return INTEGER_SPECIFIERP (object) ? Qt : Qnil;
|
|
|
3266 }
|
|
|
3267
|
|
|
3268 /************************************************************************/
|
|
|
3269 /* Non-negative-integer specifier type */
|
|
|
3270 /************************************************************************/
|
|
|
3271
|
|
|
3272 DEFINE_SPECIFIER_TYPE (natnum);
|
|
|
3273
|
|
|
3274 static void
|
|
|
3275 natnum_validate (Lisp_Object instantiator)
|
|
|
3276 {
|
|
|
3277 CHECK_NATNUM (instantiator);
|
|
|
3278 }
|
|
|
3279
|
|
|
3280 DEFUN ("natnum-specifier-p", Fnatnum_specifier_p, 1, 1, 0, /*
|
|
|
3281 Return non-nil if OBJECT is a natnum (non-negative-integer) specifier.
|
|
442
|
3282
|
|
|
3283 See `make-natnum-specifier' for a description of possible natnum
|
|
|
3284 instantiators.
|
|
428
|
3285 */
|
|
|
3286 (object))
|
|
|
3287 {
|
|
|
3288 return NATNUM_SPECIFIERP (object) ? Qt : Qnil;
|
|
|
3289 }
|
|
|
3290
|
|
|
3291 /************************************************************************/
|
|
|
3292 /* Boolean specifier type */
|
|
|
3293 /************************************************************************/
|
|
|
3294
|
|
|
3295 DEFINE_SPECIFIER_TYPE (boolean);
|
|
|
3296
|
|
|
3297 static void
|
|
|
3298 boolean_validate (Lisp_Object instantiator)
|
|
|
3299 {
|
|
|
3300 if (!EQ (instantiator, Qt) && !EQ (instantiator, Qnil))
|
|
563
|
3301 invalid_constant ("Must be t or nil", instantiator);
|
|
428
|
3302 }
|
|
|
3303
|
|
|
3304 DEFUN ("boolean-specifier-p", Fboolean_specifier_p, 1, 1, 0, /*
|
|
|
3305 Return non-nil if OBJECT is a boolean specifier.
|
|
442
|
3306
|
|
|
3307 See `make-boolean-specifier' for a description of possible boolean
|
|
|
3308 instantiators.
|
|
428
|
3309 */
|
|
|
3310 (object))
|
|
|
3311 {
|
|
|
3312 return BOOLEAN_SPECIFIERP (object) ? Qt : Qnil;
|
|
|
3313 }
|
|
|
3314
|
|
|
3315 /************************************************************************/
|
|
|
3316 /* Display table specifier type */
|
|
|
3317 /************************************************************************/
|
|
|
3318
|
|
|
3319 DEFINE_SPECIFIER_TYPE (display_table);
|
|
|
3320
|
|
442
|
3321 #define VALID_SINGLE_DISPTABLE_INSTANTIATOR_P(instantiator) \
|
|
|
3322 (VECTORP (instantiator) \
|
|
|
3323 || (CHAR_TABLEP (instantiator) \
|
|
|
3324 && (XCHAR_TABLE_TYPE (instantiator) == CHAR_TABLE_TYPE_CHAR \
|
|
|
3325 || XCHAR_TABLE_TYPE (instantiator) == CHAR_TABLE_TYPE_GENERIC)) \
|
|
428
|
3326 || RANGE_TABLEP (instantiator))
|
|
|
3327
|
|
|
3328 static void
|
|
|
3329 display_table_validate (Lisp_Object instantiator)
|
|
|
3330 {
|
|
|
3331 if (NILP (instantiator))
|
|
|
3332 /* OK */
|
|
|
3333 ;
|
|
|
3334 else if (CONSP (instantiator))
|
|
|
3335 {
|
|
2367
|
3336 EXTERNAL_LIST_LOOP_2 (car, instantiator)
|
|
428
|
3337 {
|
|
|
3338 if (!VALID_SINGLE_DISPTABLE_INSTANTIATOR_P (car))
|
|
|
3339 goto lose;
|
|
|
3340 }
|
|
|
3341 }
|
|
|
3342 else
|
|
|
3343 {
|
|
|
3344 if (!VALID_SINGLE_DISPTABLE_INSTANTIATOR_P (instantiator))
|
|
|
3345 {
|
|
|
3346 lose:
|
|
442
|
3347 dead_wrong_type_argument
|
|
|
3348 (display_table_specifier_methods->predicate_symbol,
|
|
428
|
3349 instantiator);
|
|
|
3350 }
|
|
|
3351 }
|
|
|
3352 }
|
|
|
3353
|
|
|
3354 DEFUN ("display-table-specifier-p", Fdisplay_table_specifier_p, 1, 1, 0, /*
|
|
|
3355 Return non-nil if OBJECT is a display-table specifier.
|
|
442
|
3356
|
|
|
3357 See `current-display-table' for a description of possible display-table
|
|
|
3358 instantiators.
|
|
428
|
3359 */
|
|
|
3360 (object))
|
|
|
3361 {
|
|
|
3362 return DISPLAYTABLE_SPECIFIERP (object) ? Qt : Qnil;
|
|
|
3363 }
|
|
|
3364
|
|
|
3365
|
|
|
3366 /************************************************************************/
|
|
|
3367 /* Initialization */
|
|
|
3368 /************************************************************************/
|
|
|
3369
|
|
|
3370 void
|
|
|
3371 syms_of_specifier (void)
|
|
|
3372 {
|
|
442
|
3373 INIT_LRECORD_IMPLEMENTATION (specifier);
|
|
3092
|
3374 #ifdef NEW_GC
|
|
|
3375 INIT_LRECORD_IMPLEMENTATION (specifier_caching);
|
|
|
3376 #endif /* NEW_GC */
|
|
442
|
3377
|
|
|
3378 DEFSYMBOL (Qspecifierp);
|
|
|
3379
|
|
|
3380 DEFSYMBOL (Qconsole_type);
|
|
|
3381 DEFSYMBOL (Qdevice_class);
|
|
|
3382
|
|
|
3383 /* specifier types defined in general.c. */
|
|
428
|
3384
|
|
|
3385 DEFSUBR (Fvalid_specifier_type_p);
|
|
|
3386 DEFSUBR (Fspecifier_type_list);
|
|
|
3387 DEFSUBR (Fmake_specifier);
|
|
|
3388 DEFSUBR (Fspecifierp);
|
|
|
3389 DEFSUBR (Fspecifier_type);
|
|
|
3390
|
|
|
3391 DEFSUBR (Fvalid_specifier_locale_p);
|
|
|
3392 DEFSUBR (Fvalid_specifier_domain_p);
|
|
|
3393 DEFSUBR (Fvalid_specifier_locale_type_p);
|
|
|
3394 DEFSUBR (Fspecifier_locale_type_from_locale);
|
|
|
3395
|
|
|
3396 DEFSUBR (Fvalid_specifier_tag_p);
|
|
|
3397 DEFSUBR (Fvalid_specifier_tag_set_p);
|
|
|
3398 DEFSUBR (Fcanonicalize_tag_set);
|
|
|
3399 DEFSUBR (Fdevice_matches_specifier_tag_set_p);
|
|
|
3400 DEFSUBR (Fdefine_specifier_tag);
|
|
|
3401 DEFSUBR (Fdevice_matching_specifier_tag_list);
|
|
|
3402 DEFSUBR (Fspecifier_tag_list);
|
|
|
3403 DEFSUBR (Fspecifier_tag_predicate);
|
|
|
3404
|
|
|
3405 DEFSUBR (Fcheck_valid_instantiator);
|
|
|
3406 DEFSUBR (Fvalid_instantiator_p);
|
|
|
3407 DEFSUBR (Fcheck_valid_inst_list);
|
|
|
3408 DEFSUBR (Fvalid_inst_list_p);
|
|
|
3409 DEFSUBR (Fcheck_valid_spec_list);
|
|
|
3410 DEFSUBR (Fvalid_spec_list_p);
|
|
|
3411 DEFSUBR (Fadd_spec_to_specifier);
|
|
|
3412 DEFSUBR (Fadd_spec_list_to_specifier);
|
|
|
3413 DEFSUBR (Fspecifier_spec_list);
|
|
|
3414 DEFSUBR (Fspecifier_specs);
|
|
|
3415 DEFSUBR (Fremove_specifier);
|
|
|
3416 DEFSUBR (Fcopy_specifier);
|
|
|
3417
|
|
|
3418 DEFSUBR (Fcheck_valid_specifier_matchspec);
|
|
|
3419 DEFSUBR (Fvalid_specifier_matchspec_p);
|
|
|
3420 DEFSUBR (Fspecifier_fallback);
|
|
|
3421 DEFSUBR (Fspecifier_instance);
|
|
2953
|
3422 DEFSUBR (Fspecifier_instantiator);
|
|
428
|
3423 DEFSUBR (Fspecifier_matching_instance);
|
|
2953
|
3424 DEFSUBR (Fspecifier_matching_instantiator);
|
|
428
|
3425 DEFSUBR (Fspecifier_instance_from_inst_list);
|
|
2953
|
3426 DEFSUBR (Fspecifier_instantiator_from_inst_list);
|
|
428
|
3427 DEFSUBR (Fspecifier_matching_instance_from_inst_list);
|
|
2953
|
3428 DEFSUBR (Fspecifier_matching_instantiator_from_inst_list);
|
|
428
|
3429 DEFSUBR (Fset_specifier_dirty_flag);
|
|
|
3430
|
|
|
3431 DEFSUBR (Fgeneric_specifier_p);
|
|
|
3432 DEFSUBR (Finteger_specifier_p);
|
|
|
3433 DEFSUBR (Fnatnum_specifier_p);
|
|
|
3434 DEFSUBR (Fboolean_specifier_p);
|
|
|
3435 DEFSUBR (Fdisplay_table_specifier_p);
|
|
|
3436
|
|
|
3437 /* Symbols pertaining to specifier creation. Specifiers are created
|
|
|
3438 in the syms_of() functions. */
|
|
|
3439
|
|
|
3440 /* locales are defined in general.c. */
|
|
|
3441
|
|
442
|
3442 /* some how-to-add flags in general.c. */
|
|
|
3443 DEFSYMBOL (Qremove_tag_set_prepend);
|
|
|
3444 DEFSYMBOL (Qremove_tag_set_append);
|
|
|
3445 DEFSYMBOL (Qremove_locale);
|
|
|
3446 DEFSYMBOL (Qremove_locale_type);
|
|
428
|
3447 }
|
|
|
3448
|
|
|
3449 void
|
|
|
3450 specifier_type_create (void)
|
|
|
3451 {
|
|
|
3452 the_specifier_type_entry_dynarr = Dynarr_new (specifier_type_entry);
|
|
2367
|
3453 dump_add_root_block_ptr (&the_specifier_type_entry_dynarr, &sted_description);
|
|
428
|
3454
|
|
|
3455 Vspecifier_type_list = Qnil;
|
|
|
3456 staticpro (&Vspecifier_type_list);
|
|
|
3457
|
|
|
3458 INITIALIZE_SPECIFIER_TYPE (generic, "generic", "generic-specifier-p");
|
|
|
3459
|
|
|
3460 INITIALIZE_SPECIFIER_TYPE (integer, "integer", "integer-specifier-p");
|
|
|
3461
|
|
|
3462 SPECIFIER_HAS_METHOD (integer, validate);
|
|
|
3463
|
|
|
3464 INITIALIZE_SPECIFIER_TYPE (natnum, "natnum", "natnum-specifier-p");
|
|
|
3465
|
|
|
3466 SPECIFIER_HAS_METHOD (natnum, validate);
|
|
|
3467
|
|
|
3468 INITIALIZE_SPECIFIER_TYPE (boolean, "boolean", "boolean-specifier-p");
|
|
|
3469
|
|
|
3470 SPECIFIER_HAS_METHOD (boolean, validate);
|
|
|
3471
|
|
442
|
3472 INITIALIZE_SPECIFIER_TYPE (display_table, "display-table",
|
|
|
3473 "display-table-p");
|
|
428
|
3474
|
|
|
3475 SPECIFIER_HAS_METHOD (display_table, validate);
|
|
|
3476 }
|
|
|
3477
|
|
|
3478 void
|
|
|
3479 reinit_specifier_type_create (void)
|
|
|
3480 {
|
|
|
3481 REINITIALIZE_SPECIFIER_TYPE (generic);
|
|
|
3482 REINITIALIZE_SPECIFIER_TYPE (integer);
|
|
|
3483 REINITIALIZE_SPECIFIER_TYPE (natnum);
|
|
|
3484 REINITIALIZE_SPECIFIER_TYPE (boolean);
|
|
|
3485 REINITIALIZE_SPECIFIER_TYPE (display_table);
|
|
|
3486 }
|
|
|
3487
|
|
|
3488 void
|
|
|
3489 vars_of_specifier (void)
|
|
|
3490 {
|
|
|
3491 Vcached_specifiers = Qnil;
|
|
|
3492 staticpro (&Vcached_specifiers);
|
|
|
3493
|
|
|
3494 /* Do NOT mark through this, or specifiers will never be GC'd.
|
|
|
3495 This is the same deal as for weak hash tables. */
|
|
|
3496 Vall_specifiers = Qnil;
|
|
452
|
3497 dump_add_weak_object_chain (&Vall_specifiers);
|
|
428
|
3498
|
|
|
3499 Vuser_defined_tags = Qnil;
|
|
|
3500 staticpro (&Vuser_defined_tags);
|
|
|
3501
|
|
|
3502 Vunlock_ghost_specifiers = Qnil;
|
|
|
3503 staticpro (&Vunlock_ghost_specifiers);
|
|
|
3504 }
|
