Mercurial > hg > xemacs-beta
annotate src/specifier.c @ 5273:799742b751c8
Accept circular lists where that is useful in #'mapcar*, #'map* and friends.
src/ChangeLog addition:
2010-09-16 Aidan Kehoe <kehoea@parhasard.net>
* fns.c (Flist_length): New, moved here from cl-extra.el, needed
by the next function.
(shortest_length_among_sequences): New.
(Fmapconcat, FmapcarX, Fmapvector, Fmapcan, Fmapc, Fmap)
(Fmap_into, Fsome, Fevery):
Use shortest_length_among_sequences() when working out how many
iterations to do, only giving circular list errors if all
arguments are circular.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Thu, 16 Sep 2010 20:34:49 +0100 |
| parents | 1c615eb1e4b2 |
| children | d185fa593d5f 308d34e9f07d |
| rev | line source |
|---|---|
| 428 | 1 /* Specifier implementation |
| 2 Copyright (C) 1994, 1995 Board of Trustees, University of Illinois. | |
|
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3 Copyright (C) 1995, 1996, 2002, 2005, 2010 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" |
|
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36 #include "elhash.h" |
| 428 | 37 #include "frame.h" |
| 800 | 38 #include "glyphs.h" |
| 428 | 39 #include "opaque.h" |
| 800 | 40 #include "rangetab.h" |
| 428 | 41 #include "specifier.h" |
| 42 #include "window.h" | |
| 43 | |
| 44 Lisp_Object Qspecifierp; | |
| 442 | 45 Lisp_Object Qremove_tag_set_prepend, Qremove_tag_set_append; |
| 46 Lisp_Object Qremove_locale, Qremove_locale_type; | |
| 428 | 47 |
| 48 Lisp_Object Qconsole_type, Qdevice_class; | |
| 49 | |
| 50 static Lisp_Object Vuser_defined_tags; | |
|
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51 /* This is a hash table mapping charsets to "tag lists". A tag list here |
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52 is an assoc list mapping charset tags to size-two vectors (one for the |
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53 initial stage, one for the final stage) containing t or nil, indicating |
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54 whether the charset tag matches the charset for the given stage. These |
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55 values are determined at the time a charset tag is defined by calling |
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56 the charset predicate on all the existing charsets, and at the time a |
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57 charset is defined by calling the predicate on all existing charset |
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58 tags. */ |
| 3659 | 59 static Lisp_Object Vcharset_tag_lists; |
| 428 | 60 |
| 61 typedef struct specifier_type_entry specifier_type_entry; | |
| 62 struct specifier_type_entry | |
| 63 { | |
| 64 Lisp_Object symbol; | |
| 65 struct specifier_methods *meths; | |
| 66 }; | |
| 67 | |
| 68 typedef struct | |
| 69 { | |
| 70 Dynarr_declare (specifier_type_entry); | |
| 71 } specifier_type_entry_dynarr; | |
| 72 | |
| 73 static specifier_type_entry_dynarr *the_specifier_type_entry_dynarr; | |
| 74 | |
| 1204 | 75 static const struct memory_description ste_description_1[] = { |
| 440 | 76 { XD_LISP_OBJECT, offsetof (specifier_type_entry, symbol) }, |
| 2367 | 77 { XD_BLOCK_PTR, offsetof (specifier_type_entry, meths), 1, |
| 2551 | 78 { &specifier_methods_description } }, |
| 428 | 79 { XD_END } |
| 80 }; | |
| 81 | |
| 1204 | 82 static const struct sized_memory_description ste_description = { |
| 440 | 83 sizeof (specifier_type_entry), |
| 428 | 84 ste_description_1 |
| 85 }; | |
| 86 | |
| 1204 | 87 static const struct memory_description sted_description_1[] = { |
| 440 | 88 XD_DYNARR_DESC (specifier_type_entry_dynarr, &ste_description), |
| 428 | 89 { XD_END } |
| 90 }; | |
| 91 | |
| 1204 | 92 static const struct sized_memory_description sted_description = { |
| 440 | 93 sizeof (specifier_type_entry_dynarr), |
| 428 | 94 sted_description_1 |
| 95 }; | |
| 96 | |
| 97 static Lisp_Object Vspecifier_type_list; | |
| 98 | |
| 99 static Lisp_Object Vcached_specifiers; | |
| 100 /* Do NOT mark through this, or specifiers will never be GC'd. */ | |
| 101 static Lisp_Object Vall_specifiers; | |
| 102 | |
| 103 static Lisp_Object Vunlock_ghost_specifiers; | |
| 104 | |
| 105 /* #### The purpose of this is to check for inheritance loops | |
| 106 in specifiers that can inherit from other specifiers, but it's | |
| 107 not yet implemented. | |
| 108 | |
| 109 #### Look into this for 19.14. */ | |
| 110 /* static Lisp_Object_dynarr current_specifiers; */ | |
| 111 | |
| 112 static void recompute_cached_specifier_everywhere (Lisp_Object specifier); | |
| 113 | |
| 114 EXFUN (Fspecifier_specs, 4); | |
| 115 EXFUN (Fremove_specifier, 4); | |
| 116 | |
| 117 | |
| 118 /************************************************************************/ | |
| 119 /* Specifier object methods */ | |
| 120 /************************************************************************/ | |
| 121 | |
| 122 /* Remove dead objects from the specified assoc list. */ | |
| 123 | |
| 124 static Lisp_Object | |
| 125 cleanup_assoc_list (Lisp_Object list) | |
| 126 { | |
| 127 Lisp_Object loop, prev, retval; | |
| 128 | |
| 129 loop = retval = list; | |
| 130 prev = Qnil; | |
| 131 | |
| 132 while (!NILP (loop)) | |
| 133 { | |
| 134 Lisp_Object entry = XCAR (loop); | |
| 135 Lisp_Object key = XCAR (entry); | |
| 136 | |
| 137 /* remember, dead windows can become alive again. */ | |
| 138 if (!WINDOWP (key) && object_dead_p (key)) | |
| 139 { | |
| 140 if (NILP (prev)) | |
| 141 { | |
| 142 /* Removing the head. */ | |
| 143 retval = XCDR (retval); | |
| 144 } | |
| 145 else | |
| 146 { | |
| 147 Fsetcdr (prev, XCDR (loop)); | |
| 148 } | |
| 149 } | |
| 150 else | |
| 151 prev = loop; | |
| 152 | |
| 153 loop = XCDR (loop); | |
| 154 } | |
| 155 | |
| 156 return retval; | |
| 157 } | |
| 158 | |
| 159 /* Remove dead objects from the various lists so that they | |
| 160 don't keep getting marked as long as this specifier exists and | |
| 161 therefore wasting memory. */ | |
| 162 | |
| 163 void | |
| 164 cleanup_specifiers (void) | |
| 165 { | |
| 166 Lisp_Object rest; | |
| 167 | |
| 168 for (rest = Vall_specifiers; | |
| 169 !NILP (rest); | |
| 170 rest = XSPECIFIER (rest)->next_specifier) | |
| 171 { | |
| 440 | 172 Lisp_Specifier *sp = XSPECIFIER (rest); |
| 428 | 173 /* This effectively changes the specifier specs. |
| 174 However, there's no need to call | |
| 175 recompute_cached_specifier_everywhere() or the | |
| 176 after-change methods because the only specs we | |
| 177 are removing are for dead objects, and they can | |
| 178 never have any effect on the specifier values: | |
| 179 specifiers can only be instantiated over live | |
| 180 objects, and you can't derive a dead object | |
| 181 from a live one. */ | |
| 182 sp->device_specs = cleanup_assoc_list (sp->device_specs); | |
| 183 sp->frame_specs = cleanup_assoc_list (sp->frame_specs); | |
| 184 sp->buffer_specs = cleanup_assoc_list (sp->buffer_specs); | |
| 185 /* windows are handled specially because dead windows | |
| 186 can be resurrected */ | |
| 187 } | |
| 188 } | |
| 189 | |
| 190 void | |
| 191 kill_specifier_buffer_locals (Lisp_Object buffer) | |
| 192 { | |
| 193 Lisp_Object rest; | |
| 194 | |
| 195 for (rest = Vall_specifiers; | |
| 196 !NILP (rest); | |
| 197 rest = XSPECIFIER (rest)->next_specifier) | |
| 198 { | |
| 440 | 199 Lisp_Specifier *sp = XSPECIFIER (rest); |
| 428 | 200 |
| 201 /* Make sure we're actually going to be changing something. | |
| 202 Fremove_specifier() always calls | |
| 203 recompute_cached_specifier_everywhere() (#### but should | |
| 204 be smarter about this). */ | |
| 205 if (!NILP (assq_no_quit (buffer, sp->buffer_specs))) | |
| 206 Fremove_specifier (rest, buffer, Qnil, Qnil); | |
| 207 } | |
| 208 } | |
| 209 | |
| 210 static Lisp_Object | |
| 211 mark_specifier (Lisp_Object obj) | |
| 212 { | |
| 440 | 213 Lisp_Specifier *specifier = XSPECIFIER (obj); |
| 428 | 214 |
| 215 mark_object (specifier->global_specs); | |
| 216 mark_object (specifier->device_specs); | |
| 217 mark_object (specifier->frame_specs); | |
| 218 mark_object (specifier->window_specs); | |
| 219 mark_object (specifier->buffer_specs); | |
| 220 mark_object (specifier->magic_parent); | |
| 221 mark_object (specifier->fallback); | |
| 222 if (!GHOST_SPECIFIER_P (XSPECIFIER (obj))) | |
| 223 MAYBE_SPECMETH (specifier, mark, (obj)); | |
| 224 return Qnil; | |
| 225 } | |
| 226 | |
| 227 /* The idea here is that the specifier specs point to locales | |
| 228 (windows, buffers, frames, and devices), and we want to make sure | |
| 229 that the specs disappear automatically when the associated locale | |
| 230 is no longer in use. For all but windows, "no longer in use" | |
| 231 corresponds exactly to when the object is deleted (non-deleted | |
| 232 objects are always held permanently in special lists, and deleted | |
| 233 objects are never on these lists and never reusable). To handle | |
| 234 this, we just have cleanup_specifiers() called periodically | |
| 235 (at the beginning of garbage collection); it removes all dead | |
| 236 objects. | |
| 237 | |
| 238 For windows, however, it's trickier because dead objects can be | |
| 239 converted to live ones again if the dead object is in a window | |
| 240 configuration. Therefore, for windows, "no longer in use" | |
| 241 corresponds to when the window object is garbage-collected. | |
| 242 We now use weak lists for this purpose. | |
| 243 | |
| 244 */ | |
| 245 | |
| 246 void | |
| 247 prune_specifiers (void) | |
| 248 { | |
| 249 Lisp_Object rest, prev = Qnil; | |
| 250 | |
| 251 for (rest = Vall_specifiers; | |
| 252 !NILP (rest); | |
| 253 rest = XSPECIFIER (rest)->next_specifier) | |
| 254 { | |
| 255 if (! marked_p (rest)) | |
| 256 { | |
| 440 | 257 Lisp_Specifier* sp = XSPECIFIER (rest); |
| 428 | 258 /* A bit of assertion that we're removing both parts of the |
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259 magic one altogether */ |
| 5198 | 260 assert (!MAGIC_SPECIFIER_P (sp) |
| 261 || (BODILY_SPECIFIER_P (sp) && marked_p (sp->fallback)) | |
| 262 || (GHOST_SPECIFIER_P (sp) && marked_p (sp->magic_parent))); | |
| 428 | 263 /* This specifier is garbage. Remove it from the list. */ |
| 264 if (NILP (prev)) | |
| 265 Vall_specifiers = sp->next_specifier; | |
| 266 else | |
| 267 XSPECIFIER (prev)->next_specifier = sp->next_specifier; | |
| 268 } | |
| 269 else | |
| 270 prev = rest; | |
| 271 } | |
| 272 } | |
| 273 | |
| 274 static void | |
| 2286 | 275 print_specifier (Lisp_Object obj, Lisp_Object printcharfun, |
| 276 int UNUSED (escapeflag)) | |
| 428 | 277 { |
| 440 | 278 Lisp_Specifier *sp = XSPECIFIER (obj); |
| 428 | 279 int count = specpdl_depth (); |
| 280 Lisp_Object the_specs; | |
| 281 | |
| 282 if (print_readably) | |
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283 printing_unreadable_object_fmt ("#<%s-specifier 0x%x>", |
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284 sp->methods->name, LISP_OBJECT_UID (obj)); |
| 428 | 285 |
| 800 | 286 write_fmt_string (printcharfun, "#<%s-specifier global=", sp->methods->name); |
| 872 | 287 #if 0 |
| 288 /* #### Not obvious this is useful, and overrides user settings; if we | |
| 289 resurrect this, create variables like `print-specifier-length' so it | |
| 290 can be controlled. */ | |
| 428 | 291 specbind (Qprint_string_length, make_int (100)); |
| 292 specbind (Qprint_length, make_int (5)); | |
| 872 | 293 #endif |
| 428 | 294 the_specs = Fspecifier_specs (obj, Qglobal, Qnil, Qnil); |
| 295 if (NILP (the_specs)) | |
| 296 /* there are no global specs */ | |
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297 write_ascstring (printcharfun, "<unspecified>"); |
| 428 | 298 else |
| 299 print_internal (the_specs, printcharfun, 1); | |
| 300 if (!NILP (sp->fallback)) | |
| 301 { | |
| 800 | 302 write_fmt_string_lisp (printcharfun, " fallback=%S", 1, sp->fallback); |
| 428 | 303 } |
| 771 | 304 unbind_to (count); |
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305 write_fmt_string (printcharfun, " 0x%x>", LISP_OBJECT_UID (obj)); |
| 428 | 306 } |
| 307 | |
| 3263 | 308 #ifndef NEW_GC |
| 428 | 309 static void |
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310 finalize_specifier (Lisp_Object obj) |
| 428 | 311 { |
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312 Lisp_Specifier *sp = XSPECIFIER (obj); |
| 5198 | 313 if (!GHOST_SPECIFIER_P (sp) && sp->caching) |
| 428 | 314 { |
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315 xfree (sp->caching); |
| 428 | 316 sp->caching = 0; |
| 317 } | |
| 318 } | |
| 3263 | 319 #endif /* not NEW_GC */ |
| 428 | 320 |
| 321 static int | |
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322 specifier_equal (Lisp_Object obj1, Lisp_Object obj2, int depth, int foldcase) |
| 428 | 323 { |
| 440 | 324 Lisp_Specifier *s1 = XSPECIFIER (obj1); |
| 325 Lisp_Specifier *s2 = XSPECIFIER (obj2); | |
| 428 | 326 int retval; |
| 327 Lisp_Object old_inhibit_quit = Vinhibit_quit; | |
| 328 | |
| 329 /* This function can be called from within redisplay. | |
| 330 internal_equal can trigger a quit. That leads to Bad Things. */ | |
| 331 Vinhibit_quit = Qt; | |
| 332 | |
| 333 depth++; | |
| 334 retval = | |
| 335 (s1->methods == s2->methods && | |
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336 internal_equal_0 (s1->global_specs, s2->global_specs, depth, foldcase) && |
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337 internal_equal_0 (s1->device_specs, s2->device_specs, depth, foldcase) && |
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338 internal_equal_0 (s1->frame_specs, s2->frame_specs, depth, foldcase) && |
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339 internal_equal_0 (s1->window_specs, s2->window_specs, depth, foldcase) && |
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340 internal_equal_0 (s1->buffer_specs, s2->buffer_specs, depth, foldcase) && |
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341 internal_equal_0 (s1->fallback, s2->fallback, depth, foldcase)); |
| 428 | 342 |
| 343 if (retval && HAS_SPECMETH_P (s1, equal)) | |
| 344 retval = SPECMETH (s1, equal, (obj1, obj2, depth - 1)); | |
| 345 | |
| 346 Vinhibit_quit = old_inhibit_quit; | |
| 347 return retval; | |
| 348 } | |
| 349 | |
| 2515 | 350 static Hashcode |
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351 specifier_hash (Lisp_Object obj, int depth, Boolint equalp) |
| 428 | 352 { |
| 440 | 353 Lisp_Specifier *s = XSPECIFIER (obj); |
| 428 | 354 |
| 355 /* specifier hashing is a bit problematic because there are so | |
| 356 many places where data can be stored. We pick what are perhaps | |
| 357 the most likely places where interesting stuff will be. */ | |
| 358 return HASH5 ((HAS_SPECMETH_P (s, hash) ? | |
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359 SPECMETH (s, hash, (obj, depth, equalp)) : 0), |
| 2515 | 360 (Hashcode) s->methods, |
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361 internal_hash (s->global_specs, depth + 1, equalp), |
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362 internal_hash (s->frame_specs, depth + 1, equalp), |
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363 internal_hash (s->buffer_specs, depth + 1, equalp)); |
| 428 | 364 } |
| 365 | |
| 665 | 366 inline static Bytecount |
| 367 aligned_sizeof_specifier (Bytecount specifier_type_specific_size) | |
| 456 | 368 { |
| 826 | 369 return MAX_ALIGN_SIZE (offsetof (Lisp_Specifier, data) |
| 370 + specifier_type_specific_size); | |
| 456 | 371 } |
| 372 | |
| 665 | 373 static Bytecount |
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374 sizeof_specifier (Lisp_Object obj) |
| 428 | 375 { |
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376 const Lisp_Specifier *p = XSPECIFIER (obj); |
| 456 | 377 return aligned_sizeof_specifier (GHOST_SPECIFIER_P (p) |
| 378 ? 0 | |
| 379 : p->methods->extra_data_size); | |
| 428 | 380 } |
| 381 | |
| 1204 | 382 static const struct memory_description specifier_methods_description_1[] = { |
| 440 | 383 { XD_LISP_OBJECT, offsetof (struct specifier_methods, predicate_symbol) }, |
| 428 | 384 { XD_END } |
| 385 }; | |
| 386 | |
| 1204 | 387 const struct sized_memory_description specifier_methods_description = { |
| 440 | 388 sizeof (struct specifier_methods), |
| 428 | 389 specifier_methods_description_1 |
| 390 }; | |
| 391 | |
| 1204 | 392 static const struct memory_description specifier_caching_description_1[] = { |
| 428 | 393 { XD_END } |
| 394 }; | |
| 395 | |
| 3092 | 396 #ifdef NEW_GC |
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397 DEFINE_DUMPABLE_INTERNAL_LISP_OBJECT ("specifier-caching", specifier_caching, |
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398 0, specifier_caching_description_1, |
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399 struct specifier_caching); |
| 3092 | 400 #else /* not NEW_GC */ |
| 1204 | 401 static const struct sized_memory_description specifier_caching_description = { |
| 440 | 402 sizeof (struct specifier_caching), |
| 428 | 403 specifier_caching_description_1 |
| 404 }; | |
| 3092 | 405 #endif /* not NEW_GC */ |
| 428 | 406 |
| 1204 | 407 static const struct sized_memory_description specifier_extra_description_map[] |
| 408 = { | |
| 409 { offsetof (Lisp_Specifier, methods) }, | |
| 410 { offsetof (struct specifier_methods, extra_description) }, | |
| 411 { -1 }, | |
| 412 }; | |
| 413 | |
| 414 const struct memory_description specifier_description[] = { | |
| 2367 | 415 { XD_BLOCK_PTR, offsetof (Lisp_Specifier, methods), 1, |
| 2551 | 416 { &specifier_methods_description } }, |
| 440 | 417 { XD_LO_LINK, offsetof (Lisp_Specifier, next_specifier) }, |
| 418 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, global_specs) }, | |
| 419 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, device_specs) }, | |
| 420 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, frame_specs) }, | |
| 421 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, window_specs) }, | |
| 422 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, buffer_specs) }, | |
| 3092 | 423 #ifdef NEW_GC |
| 424 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, caching) }, | |
| 425 #else /* not NEW_GC */ | |
| 2367 | 426 { XD_BLOCK_PTR, offsetof (Lisp_Specifier, caching), 1, |
| 2551 | 427 { &specifier_caching_description } }, |
| 3092 | 428 #endif /* not NEW_GC */ |
| 440 | 429 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, magic_parent) }, |
| 430 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, fallback) }, | |
| 2367 | 431 { XD_BLOCK_ARRAY, offsetof (Lisp_Specifier, data), 1, |
| 2551 | 432 { specifier_extra_description_map } }, |
| 428 | 433 { XD_END } |
| 434 }; | |
| 435 | |
| 1204 | 436 static const struct memory_description specifier_empty_extra_description_1[] = |
| 3659 | 437 { |
| 438 { XD_END } | |
| 439 }; | |
| 1204 | 440 |
| 441 const struct sized_memory_description specifier_empty_extra_description = { | |
| 442 0, specifier_empty_extra_description_1 | |
| 443 }; | |
| 444 | |
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445 DEFINE_DUMPABLE_SIZABLE_LISP_OBJECT ("specifier", specifier, |
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446 mark_specifier, print_specifier, |
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447 IF_OLD_GC (finalize_specifier), |
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448 specifier_equal, specifier_hash, |
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449 specifier_description, |
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450 sizeof_specifier, |
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451 Lisp_Specifier); |
| 428 | 452 |
| 453 /************************************************************************/ | |
| 454 /* Creating specifiers */ | |
| 455 /************************************************************************/ | |
| 456 | |
| 457 static struct specifier_methods * | |
| 578 | 458 decode_specifier_type (Lisp_Object type, Error_Behavior errb) |
| 428 | 459 { |
| 460 int i; | |
| 461 | |
| 462 for (i = 0; i < Dynarr_length (the_specifier_type_entry_dynarr); i++) | |
| 463 { | |
| 464 if (EQ (type, Dynarr_at (the_specifier_type_entry_dynarr, i).symbol)) | |
| 465 return Dynarr_at (the_specifier_type_entry_dynarr, i).meths; | |
| 466 } | |
| 467 | |
| 563 | 468 maybe_invalid_argument ("Invalid specifier type", |
| 3659 | 469 type, Qspecifier, errb); |
| 428 | 470 |
| 471 return 0; | |
| 472 } | |
| 473 | |
| 474 static int | |
| 475 valid_specifier_type_p (Lisp_Object type) | |
| 476 { | |
| 477 return decode_specifier_type (type, ERROR_ME_NOT) != 0; | |
| 478 } | |
| 479 | |
| 480 DEFUN ("valid-specifier-type-p", Fvalid_specifier_type_p, 1, 1, 0, /* | |
| 481 Given a SPECIFIER-TYPE, return non-nil if it is valid. | |
| 2953 | 482 Valid types are `generic', `integer', `boolean', `color', `font', `image', |
| 483 `face-boolean', and `toolbar'. | |
| 428 | 484 */ |
| 485 (specifier_type)) | |
| 486 { | |
| 487 return valid_specifier_type_p (specifier_type) ? Qt : Qnil; | |
| 488 } | |
| 489 | |
| 490 DEFUN ("specifier-type-list", Fspecifier_type_list, 0, 0, 0, /* | |
| 491 Return a list of valid specifier types. | |
| 492 */ | |
| 493 ()) | |
| 494 { | |
| 495 return Fcopy_sequence (Vspecifier_type_list); | |
| 496 } | |
| 497 | |
| 498 void | |
| 499 add_entry_to_specifier_type_list (Lisp_Object symbol, | |
| 500 struct specifier_methods *meths) | |
| 501 { | |
| 502 struct specifier_type_entry entry; | |
| 503 | |
| 504 entry.symbol = symbol; | |
| 505 entry.meths = meths; | |
| 506 Dynarr_add (the_specifier_type_entry_dynarr, entry); | |
| 507 Vspecifier_type_list = Fcons (symbol, Vspecifier_type_list); | |
| 508 } | |
| 509 | |
| 510 static Lisp_Object | |
| 511 make_specifier_internal (struct specifier_methods *spec_meths, | |
| 665 | 512 Bytecount data_size, int call_create_meth) |
| 428 | 513 { |
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514 Lisp_Object specifier = |
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515 ALLOC_SIZED_LISP_OBJECT (aligned_sizeof_specifier (data_size), specifier); |
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516 Lisp_Specifier *sp = XSPECIFIER (specifier); |
| 428 | 517 |
| 518 sp->methods = spec_meths; | |
| 519 sp->global_specs = Qnil; | |
| 520 sp->device_specs = Qnil; | |
| 521 sp->frame_specs = Qnil; | |
| 522 sp->window_specs = make_weak_list (WEAK_LIST_KEY_ASSOC); | |
| 523 sp->buffer_specs = Qnil; | |
| 524 sp->fallback = Qnil; | |
| 525 sp->magic_parent = Qnil; | |
| 526 sp->caching = 0; | |
| 527 sp->next_specifier = Vall_specifiers; | |
| 528 | |
| 529 Vall_specifiers = specifier; | |
| 530 | |
| 531 if (call_create_meth) | |
| 532 { | |
| 533 struct gcpro gcpro1; | |
| 534 GCPRO1 (specifier); | |
| 535 MAYBE_SPECMETH (XSPECIFIER (specifier), create, (specifier)); | |
| 536 UNGCPRO; | |
| 537 } | |
| 538 return specifier; | |
| 539 } | |
| 540 | |
| 541 static Lisp_Object | |
| 542 make_specifier (struct specifier_methods *meths) | |
| 543 { | |
| 544 return make_specifier_internal (meths, meths->extra_data_size, 1); | |
| 545 } | |
| 546 | |
| 547 Lisp_Object | |
| 548 make_magic_specifier (Lisp_Object type) | |
| 549 { | |
| 550 /* This function can GC */ | |
| 551 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME); | |
| 552 Lisp_Object bodily, ghost; | |
| 553 struct gcpro gcpro1; | |
| 554 | |
| 555 bodily = make_specifier (meths); | |
| 556 GCPRO1 (bodily); | |
| 557 ghost = make_specifier_internal (meths, 0, 0); | |
| 558 UNGCPRO; | |
| 559 | |
| 560 /* Connect guys together */ | |
| 5198 | 561 XSPECIFIER (bodily)->magic_parent = Qt; |
| 562 XSPECIFIER (bodily)->fallback = ghost; | |
| 563 XSPECIFIER (ghost)->magic_parent = bodily; | |
| 428 | 564 |
| 565 return bodily; | |
| 566 } | |
| 567 | |
| 568 DEFUN ("make-specifier", Fmake_specifier, 1, 1, 0, /* | |
| 569 Return a new specifier object of type TYPE. | |
| 570 | |
| 571 A specifier is an object that can be used to keep track of a property | |
| 572 whose value can be per-buffer, per-window, per-frame, or per-device, | |
| 442 | 573 and can further be restricted to a particular console-type or |
| 574 device-class. Specifiers are used, for example, for the various | |
| 575 built-in properties of a face; this allows a face to have different | |
| 576 values in different frames, buffers, etc. | |
| 577 | |
| 578 When speaking of the value of a specifier, it is important to | |
| 579 distinguish between the *setting* of a specifier, called an | |
| 580 \"instantiator\", and the *actual value*, called an \"instance\". You | |
| 581 put various possible instantiators (i.e. settings) into a specifier | |
| 582 and associate them with particular locales (buffer, window, frame, | |
| 583 device, global), and then the instance (i.e. actual value) is | |
| 584 retrieved in a specific domain (window, frame, device) by looking | |
| 585 through the possible instantiators (i.e. settings). This process is | |
| 586 called \"instantiation\". | |
| 444 | 587 |
| 442 | 588 To put settings into a specifier, use `set-specifier', or the |
| 589 lower-level functions `add-spec-to-specifier' and | |
| 590 `add-spec-list-to-specifier'. You can also temporarily bind a setting | |
| 591 to a specifier using `let-specifier'. To retrieve settings, use | |
| 592 `specifier-specs', or its lower-level counterpart | |
| 2953 | 593 `specifier-spec-list'. |
| 594 | |
| 595 To determine the actual value (i.e. the instance) in a particular domain, use | |
| 596 `specifier-instance'. To determine the corresponding setting that yielded | |
| 597 the value (i.e. the instantiator), use `specifier-instantiator'. | |
| 442 | 598 |
| 599 For more information, see `set-specifier', `specifier-instance', | |
| 428 | 600 `specifier-specs', and `add-spec-to-specifier'; or, for a detailed |
| 442 | 601 description of specifiers, including how exactly the instantiation |
| 602 process works, see the chapter on specifiers in the XEmacs Lisp | |
| 603 Reference Manual. | |
| 428 | 604 |
| 605 TYPE specifies the particular type of specifier, and should be one of | |
| 2953 | 606 the symbols `generic', `integer', `natnum', `boolean', `color', `font', |
| 607 `image', `face-boolean', `display-table', `gutter', `gutter-size', | |
| 608 `gutter-visible' or `toolbar'. | |
| 442 | 609 |
| 610 For more information on particular types of specifiers, see the | |
| 611 functions `make-generic-specifier', `make-integer-specifier', | |
| 612 `make-natnum-specifier', `make-boolean-specifier', | |
| 613 `make-color-specifier', `make-font-specifier', `make-image-specifier', | |
| 614 `make-face-boolean-specifier', `make-gutter-size-specifier', | |
| 615 `make-gutter-visible-specifier', `default-toolbar', `default-gutter', | |
| 616 and `current-display-table'. | |
| 428 | 617 */ |
| 618 (type)) | |
| 619 { | |
| 620 /* This function can GC */ | |
| 442 | 621 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME); |
| 428 | 622 |
| 623 return make_specifier (meths); | |
| 624 } | |
| 625 | |
| 626 DEFUN ("specifierp", Fspecifierp, 1, 1, 0, /* | |
| 627 Return t if OBJECT is a specifier. | |
| 628 | |
| 629 A specifier is an object that can be used to keep track of a property | |
| 630 whose value can be per-buffer, per-window, per-frame, or per-device, | |
| 631 and can further be restricted to a particular console-type or device-class. | |
| 632 See `make-specifier'. | |
| 633 */ | |
| 634 (object)) | |
| 635 { | |
| 636 return SPECIFIERP (object) ? Qt : Qnil; | |
| 637 } | |
| 638 | |
| 639 DEFUN ("specifier-type", Fspecifier_type, 1, 1, 0, /* | |
| 640 Return the type of SPECIFIER. | |
| 641 */ | |
| 642 (specifier)) | |
| 643 { | |
| 644 CHECK_SPECIFIER (specifier); | |
| 645 return intern (XSPECIFIER (specifier)->methods->name); | |
| 646 } | |
| 647 | |
| 648 | |
| 649 /************************************************************************/ | |
| 650 /* Locales and domains */ | |
| 651 /************************************************************************/ | |
| 652 | |
| 653 DEFUN ("valid-specifier-locale-p", Fvalid_specifier_locale_p, 1, 1, 0, /* | |
| 654 Return t if LOCALE is a valid specifier locale. | |
| 2953 | 655 Valid locales are devices, frames, windows, buffers, and `global'. |
| 428 | 656 \(nil is not valid.) |
| 657 */ | |
| 658 (locale)) | |
| 659 { | |
| 660 /* This cannot GC. */ | |
| 661 return ((DEVICEP (locale) && DEVICE_LIVE_P (XDEVICE (locale))) || | |
| 662 (FRAMEP (locale) && FRAME_LIVE_P (XFRAME (locale))) || | |
| 663 (BUFFERP (locale) && BUFFER_LIVE_P (XBUFFER (locale))) || | |
| 664 /* dead windows are allowed because they may become live | |
| 665 windows again when a window configuration is restored */ | |
| 666 WINDOWP (locale) || | |
| 667 EQ (locale, Qglobal)) | |
| 668 ? Qt : Qnil; | |
| 669 } | |
| 670 | |
| 671 DEFUN ("valid-specifier-domain-p", Fvalid_specifier_domain_p, 1, 1, 0, /* | |
| 672 Return t if DOMAIN is a valid specifier domain. | |
| 2953 | 673 A domain is used to instantiate a specifier (i.e. determine the specifier's |
| 442 | 674 value in that domain). Valid domains are image instances, windows, frames, |
| 675 and devices. \(nil is not valid.) image instances are pseudo-domains since | |
| 676 instantiation will actually occur in the window the image instance itself is | |
| 677 instantiated in. | |
| 428 | 678 */ |
| 3659 | 679 (domain)) |
| 428 | 680 { |
| 681 /* This cannot GC. */ | |
| 682 return ((DEVICEP (domain) && DEVICE_LIVE_P (XDEVICE (domain))) || | |
| 683 (FRAMEP (domain) && FRAME_LIVE_P (XFRAME (domain))) || | |
| 442 | 684 (WINDOWP (domain) && WINDOW_LIVE_P (XWINDOW (domain))) || |
| 685 /* #### get image instances out of domains! */ | |
| 686 IMAGE_INSTANCEP (domain)) | |
| 428 | 687 ? Qt : Qnil; |
| 688 } | |
| 689 | |
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690 DEFUN ("valid-specifier-locale-type-p", Fvalid_specifier_locale_type_p, 1, |
| 3659 | 691 1, 0, /* |
| 428 | 692 Given a specifier LOCALE-TYPE, return non-nil if it is valid. |
| 2953 | 693 Valid locale types are `global', `device', `frame', `window', and `buffer'. |
| 428 | 694 \(Note, however, that in functions that accept either a locale or a locale |
| 2953 | 695 type, `global' is considered an individual locale.) |
| 428 | 696 */ |
| 3659 | 697 (locale_type)) |
| 428 | 698 { |
| 699 /* This cannot GC. */ | |
| 700 return (EQ (locale_type, Qglobal) || | |
| 701 EQ (locale_type, Qdevice) || | |
| 702 EQ (locale_type, Qframe) || | |
| 703 EQ (locale_type, Qwindow) || | |
| 704 EQ (locale_type, Qbuffer)) ? Qt : Qnil; | |
| 705 } | |
| 706 | |
| 707 static void | |
| 708 check_valid_locale_or_locale_type (Lisp_Object locale) | |
| 709 { | |
| 710 /* This cannot GC. */ | |
| 711 if (EQ (locale, Qall) || | |
| 712 !NILP (Fvalid_specifier_locale_p (locale)) || | |
| 713 !NILP (Fvalid_specifier_locale_type_p (locale))) | |
| 714 return; | |
| 563 | 715 invalid_argument ("Invalid specifier locale or locale type", locale); |
| 428 | 716 } |
| 717 | |
| 718 DEFUN ("specifier-locale-type-from-locale", Fspecifier_locale_type_from_locale, | |
| 719 1, 1, 0, /* | |
| 720 Given a specifier LOCALE, return its type. | |
| 721 */ | |
| 722 (locale)) | |
| 723 { | |
| 724 /* This cannot GC. */ | |
| 725 if (NILP (Fvalid_specifier_locale_p (locale))) | |
| 563 | 726 invalid_argument ("Invalid specifier locale", |
| 3659 | 727 locale); |
| 428 | 728 if (DEVICEP (locale)) return Qdevice; |
| 729 if (FRAMEP (locale)) return Qframe; | |
| 730 if (WINDOWP (locale)) return Qwindow; | |
| 731 if (BUFFERP (locale)) return Qbuffer; | |
| 732 assert (EQ (locale, Qglobal)); | |
| 733 return Qglobal; | |
| 734 } | |
| 735 | |
| 736 static Lisp_Object | |
| 737 decode_locale (Lisp_Object locale) | |
| 738 { | |
| 739 /* This cannot GC. */ | |
| 740 if (NILP (locale)) | |
| 741 return Qglobal; | |
| 742 else if (!NILP (Fvalid_specifier_locale_p (locale))) | |
| 743 return locale; | |
| 744 else | |
| 563 | 745 invalid_argument ("Invalid specifier locale", |
| 3659 | 746 locale); |
| 428 | 747 |
| 748 return Qnil; | |
| 749 } | |
| 750 | |
| 751 static enum spec_locale_type | |
| 752 decode_locale_type (Lisp_Object locale_type) | |
| 753 { | |
| 754 /* This cannot GC. */ | |
| 755 if (EQ (locale_type, Qglobal)) return LOCALE_GLOBAL; | |
| 756 if (EQ (locale_type, Qdevice)) return LOCALE_DEVICE; | |
| 757 if (EQ (locale_type, Qframe)) return LOCALE_FRAME; | |
| 758 if (EQ (locale_type, Qwindow)) return LOCALE_WINDOW; | |
| 759 if (EQ (locale_type, Qbuffer)) return LOCALE_BUFFER; | |
| 760 | |
| 563 | 761 invalid_argument ("Invalid specifier locale type", |
| 3659 | 762 locale_type); |
| 1204 | 763 RETURN_NOT_REACHED (LOCALE_GLOBAL); |
| 428 | 764 } |
| 765 | |
| 766 Lisp_Object | |
| 767 decode_locale_list (Lisp_Object locale) | |
| 768 { | |
| 769 /* This cannot GC. */ | |
| 770 /* The return value of this function must be GCPRO'd. */ | |
| 771 if (NILP (locale)) | |
| 772 { | |
| 773 return list1 (Qall); | |
| 774 } | |
| 775 else if (CONSP (locale)) | |
| 776 { | |
| 777 EXTERNAL_LIST_LOOP_2 (elt, locale) | |
| 778 check_valid_locale_or_locale_type (elt); | |
| 779 return locale; | |
| 780 } | |
| 781 else | |
| 782 { | |
| 783 check_valid_locale_or_locale_type (locale); | |
| 784 return list1 (locale); | |
| 785 } | |
| 786 } | |
| 787 | |
| 788 static enum spec_locale_type | |
| 789 locale_type_from_locale (Lisp_Object locale) | |
| 790 { | |
| 791 return decode_locale_type (Fspecifier_locale_type_from_locale (locale)); | |
| 792 } | |
| 793 | |
| 794 static void | |
| 795 check_valid_domain (Lisp_Object domain) | |
| 796 { | |
| 797 if (NILP (Fvalid_specifier_domain_p (domain))) | |
| 563 | 798 invalid_argument ("Invalid specifier domain", |
| 3659 | 799 domain); |
| 428 | 800 } |
| 801 | |
| 442 | 802 Lisp_Object |
| 428 | 803 decode_domain (Lisp_Object domain) |
| 804 { | |
| 805 if (NILP (domain)) | |
| 806 return Fselected_window (Qnil); | |
| 807 check_valid_domain (domain); | |
| 808 return domain; | |
| 809 } | |
| 810 | |
| 811 | |
| 812 /************************************************************************/ | |
| 813 /* Tags */ | |
| 814 /************************************************************************/ | |
| 815 | |
| 816 DEFUN ("valid-specifier-tag-p", Fvalid_specifier_tag_p, 1, 1, 0, /* | |
| 817 Return non-nil if TAG is a valid specifier tag. | |
| 818 See also `valid-specifier-tag-set-p'. | |
| 819 */ | |
| 820 (tag)) | |
| 821 { | |
| 822 return (valid_console_type_p (tag) || | |
| 823 valid_device_class_p (tag) || | |
| 824 !NILP (assq_no_quit (tag, Vuser_defined_tags))) ? Qt : Qnil; | |
| 825 } | |
| 826 | |
| 827 DEFUN ("valid-specifier-tag-set-p", Fvalid_specifier_tag_set_p, 1, 1, 0, /* | |
| 828 Return non-nil if TAG-SET is a valid specifier tag set. | |
| 829 | |
| 3659 | 830 A specifier tag set is an entity that is attached to an instantiator and can |
| 831 be used to restrict the scope of that instantiator to a particular device | |
| 832 class, device type, or charset. It can also be used to mark instantiators | |
| 833 added by a particular package so that they can be later removed as a group. | |
| 428 | 834 |
| 835 A specifier tag set consists of a list of zero of more specifier tags, | |
| 836 each of which is a symbol that is recognized by XEmacs as a tag. | |
| 837 \(The valid device types and device classes are always tags, as are | |
| 838 any tags defined by `define-specifier-tag'.) It is called a "tag set" | |
| 839 \(as opposed to a list) because the order of the tags or the number of | |
| 840 times a particular tag occurs does not matter. | |
| 841 | |
| 3659 | 842 Each tag has two predicates associated with it, which specify, respectively, |
| 843 whether that tag applies to a particular device and whether it applies to a | |
| 844 particular character set. The predefined tags which are device types and | |
| 845 classes match devices of that type or class. User-defined tags can have any | |
| 846 device predicate, or none (meaning that all devices match). When attempting | |
| 847 to instantiate a specifier, a particular instantiator is only considered if | |
| 848 the device of the domain being instantiated over matches all tags in the tag | |
| 849 set attached to that instantiator. | |
| 850 | |
| 851 If a charset is to be considered--which is only the case for face | |
| 852 instantiators--this consideration may be done twice. The first iteration | |
| 853 pays attention to the character set predicates; if no instantiator can be | |
| 854 found in that case, the search is repeated ignoring the character set | |
| 855 predicates. | |
| 428 | 856 |
| 857 Most of the time, a tag set is not specified, and the instantiator | |
| 858 gets a null tag set, which matches all devices. | |
| 859 */ | |
| 3659 | 860 (tag_set)) |
| 428 | 861 { |
| 862 Lisp_Object rest; | |
| 863 | |
| 864 for (rest = tag_set; !NILP (rest); rest = XCDR (rest)) | |
| 865 { | |
| 866 if (!CONSP (rest)) | |
| 867 return Qnil; | |
| 868 if (NILP (Fvalid_specifier_tag_p (XCAR (rest)))) | |
| 869 return Qnil; | |
| 870 QUIT; | |
| 871 } | |
| 872 return Qt; | |
| 873 } | |
| 874 | |
| 875 Lisp_Object | |
| 876 decode_specifier_tag_set (Lisp_Object tag_set) | |
| 877 { | |
| 878 /* The return value of this function must be GCPRO'd. */ | |
| 879 if (!NILP (Fvalid_specifier_tag_p (tag_set))) | |
| 880 return list1 (tag_set); | |
| 881 if (NILP (Fvalid_specifier_tag_set_p (tag_set))) | |
| 563 | 882 invalid_argument ("Invalid specifier tag-set", |
| 3659 | 883 tag_set); |
| 428 | 884 return tag_set; |
| 885 } | |
| 886 | |
| 887 static Lisp_Object | |
| 888 canonicalize_tag_set (Lisp_Object tag_set) | |
| 889 { | |
| 890 int len = XINT (Flength (tag_set)); | |
| 891 Lisp_Object *tags, rest; | |
| 892 int i, j; | |
| 893 | |
| 894 /* We assume in this function that the tag_set has already been | |
| 895 validated, so there are no surprises. */ | |
| 896 | |
| 897 if (len == 0 || len == 1) | |
| 898 /* most common case */ | |
| 899 return tag_set; | |
| 900 | |
| 901 tags = alloca_array (Lisp_Object, len); | |
| 902 | |
| 903 i = 0; | |
| 904 LIST_LOOP (rest, tag_set) | |
| 905 tags[i++] = XCAR (rest); | |
| 906 | |
| 907 /* Sort the list of tags. We use a bubble sort here (copied from | |
| 908 extent_fragment_update()) -- reduces the function call overhead, | |
| 909 and is the fastest sort for small numbers of items. */ | |
| 910 | |
| 911 for (i = 1; i < len; i++) | |
| 912 { | |
| 913 j = i - 1; | |
| 914 while (j >= 0 && | |
| 793 | 915 qxestrcmp (XSTRING_DATA (XSYMBOL (tags[j])->name), |
| 916 XSTRING_DATA (XSYMBOL (tags[j+1])->name)) > 0) | |
| 428 | 917 { |
| 918 Lisp_Object tmp = tags[j]; | |
| 919 tags[j] = tags[j+1]; | |
| 920 tags[j+1] = tmp; | |
| 921 j--; | |
| 922 } | |
| 923 } | |
| 924 | |
| 925 /* Now eliminate duplicates. */ | |
| 926 | |
| 927 for (i = 1, j = 1; i < len; i++) | |
| 928 { | |
| 929 /* j holds the destination, i the source. */ | |
| 930 if (!EQ (tags[i], tags[i-1])) | |
| 931 tags[j++] = tags[i]; | |
| 932 } | |
| 933 | |
| 934 return Flist (j, tags); | |
| 935 } | |
| 936 | |
| 937 DEFUN ("canonicalize-tag-set", Fcanonicalize_tag_set, 1, 1, 0, /* | |
| 938 Canonicalize the given tag set. | |
| 939 Two canonicalized tag sets can be compared with `equal' to see if they | |
| 940 represent the same tag set. (Specifically, canonicalizing involves | |
| 941 sorting by symbol name and removing duplicates.) | |
| 942 */ | |
| 943 (tag_set)) | |
| 944 { | |
| 945 if (NILP (Fvalid_specifier_tag_set_p (tag_set))) | |
| 563 | 946 invalid_argument ("Invalid tag set", tag_set); |
| 428 | 947 return canonicalize_tag_set (tag_set); |
| 948 } | |
| 949 | |
| 950 static int | |
| 951 device_matches_specifier_tag_set_p (Lisp_Object device, Lisp_Object tag_set) | |
| 952 { | |
| 953 Lisp_Object devtype, devclass, rest; | |
| 954 struct device *d = XDEVICE (device); | |
| 955 | |
| 956 devtype = DEVICE_TYPE (d); | |
| 957 devclass = DEVICE_CLASS (d); | |
| 958 | |
| 959 LIST_LOOP (rest, tag_set) | |
| 960 { | |
| 961 Lisp_Object tag = XCAR (rest); | |
| 962 Lisp_Object assoc; | |
| 963 | |
| 964 if (EQ (tag, devtype) || EQ (tag, devclass)) | |
| 965 continue; | |
| 966 assoc = assq_no_quit (tag, DEVICE_USER_DEFINED_TAGS (d)); | |
| 967 /* other built-in tags (device types/classes) are not in | |
| 968 the user-defined-tags list. */ | |
| 969 if (NILP (assoc) || NILP (XCDR (assoc))) | |
| 970 return 0; | |
| 971 } | |
| 972 | |
| 973 return 1; | |
| 974 } | |
| 975 | |
| 3659 | 976 static int |
|
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977 charset_matches_specifier_tag_set_p (Lisp_Object charset, Lisp_Object tag_set, |
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978 enum font_specifier_matchspec_stages |
| 3659 | 979 stage) |
| 980 { | |
| 981 Lisp_Object rest; | |
| 982 int res = 0; | |
| 983 | |
| 5198 | 984 assert (stage < NUM_MATCHSPEC_STAGES); |
| 3659 | 985 |
| 986 LIST_LOOP (rest, tag_set) | |
| 987 { | |
| 988 Lisp_Object tag = XCAR (rest); | |
| 989 Lisp_Object assoc; | |
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990 Lisp_Object tag_list = Fgethash (charset, Vcharset_tag_lists, Qnil); |
| 3659 | 991 |
| 3736 | 992 /* In the event that, during the creation of a charset, no specifier |
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993 tags exist for which CHARSET-PREDICATE has been specified, then |
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994 that charset's entry in Vcharset_tag_lists will be nil, and this |
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995 charset shouldn't match. */ |
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996 |
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997 if (NILP (tag_list)) |
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998 { |
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999 return 0; |
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1000 } |
| 3659 | 1001 |
| 1002 /* Now, find out what the pre-calculated value is. */ | |
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1003 assoc = assq_no_quit (tag, tag_list); |
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1004 |
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1005 if (!(NILP (assoc))) |
| 3659 | 1006 { |
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1007 assert (VECTORP (XCDR (assoc))); |
| 3659 | 1008 |
| 1009 /* In the event that a tag specifies a charset, then the specifier | |
| 1010 must match for (this stage and this charset) for all | |
| 1011 charset-specifying tags. */ | |
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1012 if (NILP (XVECTOR_DATA (XCDR (assoc))[stage])) |
| 3659 | 1013 { |
| 1014 /* It doesn't match for this tag, even though the tag | |
| 1015 specifies a charset. Return 0. */ | |
| 1016 return 0; | |
| 1017 } | |
| 1018 | |
| 1019 /* This tag specifies charset limitations, and this charset and | |
| 1020 stage match those charset limitations. | |
| 1021 | |
| 1022 In the event that a later tag specifies charset limitations | |
| 1023 that don't match, the return 0 above prevents us giving a | |
| 1024 positive match. */ | |
| 1025 res = 1; | |
| 1026 } | |
| 1027 } | |
| 1028 | |
| 1029 return res; | |
| 1030 } | |
| 1031 | |
| 1032 | |
| 442 | 1033 DEFUN ("device-matches-specifier-tag-set-p", |
| 1034 Fdevice_matches_specifier_tag_set_p, 2, 2, 0, /* | |
| 428 | 1035 Return non-nil if DEVICE matches specifier tag set TAG-SET. |
| 1036 This means that DEVICE matches each tag in the tag set. (Every | |
| 1037 tag recognized by XEmacs has a predicate associated with it that | |
| 1038 specifies which devices match it.) | |
| 1039 */ | |
| 1040 (device, tag_set)) | |
| 1041 { | |
| 1042 CHECK_LIVE_DEVICE (device); | |
| 1043 | |
| 1044 if (NILP (Fvalid_specifier_tag_set_p (tag_set))) | |
| 563 | 1045 invalid_argument ("Invalid tag set", tag_set); |
| 428 | 1046 |
| 1047 return device_matches_specifier_tag_set_p (device, tag_set) ? Qt : Qnil; | |
| 1048 } | |
| 1049 | |
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1050 /* Call CHARSET_PREDICATE on CHARSET, evaluating it at both stages (initial |
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1051 and final) and returning a size-two vector of the results. */ |
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1052 |
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1053 static Lisp_Object |
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1054 call_charset_predicate (Lisp_Object charset_predicate, Lisp_Object charset) |
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1055 { |
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1056 struct gcpro gcpro1; |
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1057 Lisp_Object charpres = make_vector (NUM_MATCHSPEC_STAGES, Qnil); |
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1058 int max_args = XINT (Ffunction_max_args (charset_predicate)); |
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1059 GCPRO1 (charpres); |
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1060 |
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1061 |
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1062 #define DEFINE_SPECIFIER_TAG_FROB(stage, enumstage) \ |
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1063 do { \ |
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1064 if (max_args > 1) \ |
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1065 { \ |
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1066 XVECTOR_DATA (charpres)[enumstage] = \ |
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1067 call2_trapping_problems \ |
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1068 ("Error during specifier tag charset predicate," \ |
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1069 " stage " #stage, charset_predicate, \ |
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1070 charset, Q##stage, 0); \ |
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1071 } \ |
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1072 else \ |
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1073 { \ |
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1074 XVECTOR_DATA (charpres)[enumstage] = \ |
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1075 call1_trapping_problems \ |
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1076 ("Error during specifier tag charset predicate," \ |
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1077 " stage " #stage, charset_predicate, \ |
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1078 charset, 0); \ |
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1079 } \ |
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1080 \ |
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1081 if (UNBOUNDP (XVECTOR_DATA (charpres)[enumstage])) \ |
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1082 { \ |
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1083 XVECTOR_DATA (charpres)[enumstage] = Qnil; \ |
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1084 } \ |
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1085 else if (!NILP (XVECTOR_DATA (charpres)[enumstage])) \ |
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1086 { \ |
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1087 /* Don't want refs to random other objects. */ \ |
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1088 XVECTOR_DATA (charpres)[enumstage] = Qt; \ |
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1089 } \ |
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1090 } while (0) |
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1091 |
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1092 DEFINE_SPECIFIER_TAG_FROB (initial, STAGE_INITIAL); |
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1093 DEFINE_SPECIFIER_TAG_FROB (final, STAGE_FINAL); |
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1094 |
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1095 #undef DEFINE_SPECIFIER_TAG_FROB |
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1096 |
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1097 UNGCPRO; |
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1098 |
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1099 return charpres; |
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1100 } |
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1101 |
| 3659 | 1102 Lisp_Object |
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1103 define_specifier_tag (Lisp_Object tag, Lisp_Object device_predicate, |
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1104 Lisp_Object charset_predicate) |
| 428 | 1105 { |
|
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1106 Lisp_Object assoc = assq_no_quit (tag, Vuser_defined_tags), |
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1107 concons, devcons; |
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1108 int recompute_devices = 0, recompute_charsets = 0; |
| 3659 | 1109 |
| 428 | 1110 if (NILP (assoc)) |
| 1111 { | |
| 3659 | 1112 recompute_devices = recompute_charsets = 1; |
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1113 Vuser_defined_tags = Fcons (list3 (tag, device_predicate, |
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1114 charset_predicate), |
| 3659 | 1115 Vuser_defined_tags); |
| 428 | 1116 DEVICE_LOOP_NO_BREAK (devcons, concons) |
| 1117 { | |
| 1118 struct device *d = XDEVICE (XCAR (devcons)); | |
| 1119 /* Initially set the value to t in case of error | |
| 3659 | 1120 in device_predicate */ |
| 428 | 1121 DEVICE_USER_DEFINED_TAGS (d) = |
| 1122 Fcons (Fcons (tag, Qt), DEVICE_USER_DEFINED_TAGS (d)); | |
| 1123 } | |
| 1124 } | |
| 3659 | 1125 else if (!NILP (device_predicate) && !NILP (XCADR (assoc))) |
| 428 | 1126 { |
| 3659 | 1127 recompute_devices = 1; |
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1128 XCDR (assoc) = list2 (device_predicate, charset_predicate); |
| 428 | 1129 } |
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1130 else if (!NILP (charset_predicate) || !NILP (XCADDR (assoc))) |
| 3659 | 1131 { |
| 1132 /* If there exists a charset_predicate for the tag currently (even if | |
| 1133 the new charset_predicate is nil), or if we're adding one, we need | |
| 1134 to recompute. This contrasts with the device predicates, where we | |
| 1135 don't need to recompute if the old and new device predicates are | |
| 1136 both nil. */ | |
| 1137 | |
| 1138 recompute_charsets = 1; | |
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1139 XCDR (assoc) = list2 (device_predicate, charset_predicate); |
| 3659 | 1140 } |
| 1141 | |
| 1142 /* Recompute the tag values for all devices and charsets, if necessary. In | |
| 1143 the special case where both the old and new device_predicates are nil, | |
| 1144 we know that we don't have to do it for the device. (It's probably | |
| 1145 common for people to call (define-specifier-tag) more than once on the | |
| 1146 same tag, and the most common case is where DEVICE_PREDICATE is not | |
| 1147 specified.) */ | |
| 1148 | |
| 1149 if (recompute_devices) | |
| 428 | 1150 { |
| 1151 DEVICE_LOOP_NO_BREAK (devcons, concons) | |
| 1152 { | |
| 1153 Lisp_Object device = XCAR (devcons); | |
| 1154 assoc = assq_no_quit (tag, | |
| 1155 DEVICE_USER_DEFINED_TAGS (XDEVICE (device))); | |
| 1156 assert (CONSP (assoc)); | |
| 3659 | 1157 if (NILP (device_predicate)) |
| 428 | 1158 XCDR (assoc) = Qt; |
| 1159 else | |
| 3659 | 1160 XCDR (assoc) = !NILP (call1 (device_predicate, device)) ? Qt |
| 1161 : Qnil; | |
| 428 | 1162 } |
| 1163 } | |
| 1164 | |
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1165 if (recompute_charsets) |
| 3659 | 1166 { |
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1167 |
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1168 LIST_LOOP_2 (charset_name, Fcharset_list ()) |
| 3659 | 1169 { |
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1170 Lisp_Object charset = Fget_charset (charset_name); |
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1171 Lisp_Object tag_list = Fgethash (charset, Vcharset_tag_lists, Qnil); |
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1172 Lisp_Object charpres; |
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1173 |
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1174 if (NILP (charset_predicate)) |
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1175 continue; |
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1176 |
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1177 charpres = call_charset_predicate (charset_predicate, charset); |
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1178 |
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1179 assoc = assq_no_quit (tag, tag_list); |
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1180 if (!NILP (assoc)) |
| 3659 | 1181 { |
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1182 assert (CONSP (assoc)); |
| 3659 | 1183 XCDR (assoc) = charpres; |
| 1184 } | |
| 1185 else | |
| 1186 { | |
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1187 Fputhash (charset, Fcons (Fcons (tag, charpres), tag_list), |
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1188 Vcharset_tag_lists); |
| 3659 | 1189 } |
| 1190 } | |
| 1191 } | |
| 1192 return Qt; | |
| 1193 } | |
| 1194 | |
| 1195 DEFUN ("define-specifier-tag", Fdefine_specifier_tag, 1, 3, 0, /* | |
| 1196 Define a new specifier tag. | |
| 1197 | |
| 1198 If DEVICE-PREDICATE is specified, it should be a function of one argument | |
| 1199 \(a device) that specifies whether the tag matches that particular device. | |
| 1200 If DEVICE-PREDICATE is omitted, the tag matches all devices. | |
| 1201 | |
| 1202 If CHARSET-PREDICATE is supplied, it should be a function taking a single | |
| 1203 Lisp character set argument. A tag's charset predicate is primarily used to | |
| 1204 determine what font to use for a given \(set of) charset\(s) when that tag | |
| 1205 is used in a set-face-font call; a non-nil return value indicates that the | |
| 1206 tag matches the charset. | |
| 1207 | |
| 1208 The font matching process also has a concept of stages; the defined stages | |
| 1209 are currently `initial' and `final', and there exist specifier tags with | |
| 1210 those names that correspond to those stages. On X11, 'initial is used when | |
| 1211 the font matching process is looking for fonts that match the desired | |
| 1212 registries of the charset--see the `charset-registries' function. If that | |
| 1213 match process fails, then the 'final tag becomes relevant; this means that a | |
| 1214 more general lookup is desired, and that a font doesn't necessarily have to | |
| 1215 match the desired XLFD for the face, just the charset repertoire for this | |
| 1216 charset. It also means that the charset registry and encoding used will be | |
| 1217 `iso10646-1', and the characters will be converted to display using that | |
| 1218 registry. | |
| 1219 | |
| 1220 If a tag set matches no character set; the two-stage match process will | |
| 1221 ignore the tag on its first pass, but if no match is found, it will respect | |
| 1222 it on the second pass, where character set information is ignored. | |
| 1223 | |
| 1224 You can redefine an existing user-defined specifier tag. However, you | |
| 1225 cannot redefine most of the built-in specifier tags \(the device types and | |
| 1226 classes, `initial', and `final') or the symbols nil, t, `all', or `global'. | |
| 1227 Note that if a device type is not supported in this XEmacs, it will not be | |
| 1228 available as a built-in specifier tag; this is probably something we should | |
| 1229 change. | |
| 1230 */ | |
| 1231 (tag, device_predicate, charset_predicate)) | |
| 1232 { | |
| 1233 CHECK_SYMBOL (tag); | |
| 1234 if (valid_device_class_p (tag) || | |
| 1235 valid_console_type_p (tag) || | |
| 1236 EQ (tag, Qinitial) || EQ (tag, Qfinal)) | |
| 1237 invalid_change ("Cannot redefine built-in specifier tags", tag); | |
| 1238 /* Try to prevent common instantiators and locales from being | |
| 1239 redefined, to reduce ambiguity */ | |
| 1240 if (NILP (tag) || EQ (tag, Qt) || EQ (tag, Qall) || EQ (tag, Qglobal)) | |
| 1241 invalid_change ("Cannot define nil, t, `all', or `global'", tag); | |
| 1242 | |
| 1243 if (!NILP (charset_predicate)) | |
| 1244 { | |
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1245 Lisp_Object min_args = Ffunction_min_args (charset_predicate); |
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1246 Lisp_Object max_args = Ffunction_max_args (charset_predicate); |
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1247 if (!(INTP (min_args) && XINT (min_args) == 1 && |
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1248 INTP (max_args) && XINT (max_args) == 1)) |
| 3659 | 1249 { |
| 1250 /* We only allow the stage argument to be specifed from C. */ | |
| 1251 invalid_change ("Charset predicate must take one argument", | |
| 1252 tag); | |
| 1253 } | |
| 1254 } | |
| 1255 | |
| 5198 | 1256 return define_specifier_tag (tag, device_predicate, charset_predicate); |
| 428 | 1257 } |
| 1258 | |
| 1259 /* Called at device-creation time to initialize the user-defined | |
| 1260 tag values for the newly-created device. */ | |
| 1261 | |
| 1262 void | |
| 1263 setup_device_initial_specifier_tags (struct device *d) | |
| 1264 { | |
| 1265 Lisp_Object rest, rest2; | |
| 793 | 1266 Lisp_Object device = wrap_device (d); |
| 3836 | 1267 Lisp_Object device_predicate; |
| 3659 | 1268 int list_len; |
| 793 | 1269 |
| 428 | 1270 DEVICE_USER_DEFINED_TAGS (d) = Fcopy_alist (Vuser_defined_tags); |
| 1271 | |
| 1272 /* Now set up the initial values */ | |
| 1273 LIST_LOOP (rest, DEVICE_USER_DEFINED_TAGS (d)) | |
| 1274 XCDR (XCAR (rest)) = Qt; | |
| 1275 | |
| 1276 for (rest = Vuser_defined_tags, rest2 = DEVICE_USER_DEFINED_TAGS (d); | |
| 1277 !NILP (rest); rest = XCDR (rest), rest2 = XCDR (rest2)) | |
| 1278 { | |
| 5198 | 1279 GET_LIST_LENGTH (XCAR(rest), list_len); |
| 1280 | |
| 1281 assert (3 == list_len); | |
| 1282 | |
| 1283 device_predicate = XCADR (XCAR (rest)); | |
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1284 |
| 3659 | 1285 if (NILP (device_predicate)) |
| 1286 { | |
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1287 XCDR (XCAR (rest2)) = Qt; |
| 3659 | 1288 } |
| 428 | 1289 else |
| 3659 | 1290 { |
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1291 device_predicate = !NILP (call_critical_lisp_code |
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1292 (d, device_predicate, device)) |
| 3659 | 1293 ? Qt : Qnil; |
| 3817 | 1294 XCDR (XCAR (rest2)) = device_predicate; |
| 3659 | 1295 } |
| 428 | 1296 } |
| 1297 } | |
| 1298 | |
| 3659 | 1299 void |
| 1300 setup_charset_initial_specifier_tags (Lisp_Object charset) | |
| 1301 { | |
| 1302 Lisp_Object rest, charset_predicate, tag, new_value; | |
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1303 Lisp_Object charset_tag_list = Qnil; |
| 3659 | 1304 |
| 1305 LIST_LOOP (rest, Vuser_defined_tags) | |
| 1306 { | |
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1307 tag = XCAR (XCAR (rest)); |
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1308 charset_predicate = XCADDR (XCAR (rest)); |
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1309 |
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1310 if (NILP (charset_predicate)) |
| 3659 | 1311 { |
| 1312 continue; | |
| 1313 } | |
| 1314 | |
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1315 new_value = call_charset_predicate (charset_predicate, charset); |
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1316 charset_tag_list = Fcons (Fcons (tag, new_value), charset_tag_list); |
| 3659 | 1317 } |
| 1318 | |
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1319 Fputhash (charset, charset_tag_list, Vcharset_tag_lists); |
| 3659 | 1320 } |
| 1321 | |
| 3673 | 1322 /* VM calls this, in vm-multiple-frames-possible-p, in the event that you're |
| 1323 considering taking it out. */ | |
| 3659 | 1324 |
| 442 | 1325 DEFUN ("device-matching-specifier-tag-list", |
| 1326 Fdevice_matching_specifier_tag_list, | |
| 428 | 1327 0, 1, 0, /* |
| 3673 | 1328 Return a list of all specifier tags matching DEVICE. |
| 1329 DEVICE defaults to the selected device if omitted. | |
| 1330 */ | |
| 428 | 1331 (device)) |
| 1332 { | |
| 1333 struct device *d = decode_device (device); | |
| 1334 Lisp_Object rest, list = Qnil; | |
| 1335 struct gcpro gcpro1; | |
| 1336 | |
| 1337 GCPRO1 (list); | |
| 1338 | |
| 1339 LIST_LOOP (rest, DEVICE_USER_DEFINED_TAGS (d)) | |
| 1340 { | |
| 3836 | 1341 if (!NILP (XCDR (XCAR (rest)))) |
| 428 | 1342 list = Fcons (XCAR (XCAR (rest)), list); |
| 1343 } | |
| 1344 | |
| 1345 list = Fnreverse (list); | |
| 1346 list = Fcons (DEVICE_CLASS (d), list); | |
| 1347 list = Fcons (DEVICE_TYPE (d), list); | |
| 1348 | |
| 1349 RETURN_UNGCPRO (list); | |
| 1350 } | |
| 1351 | |
| 1352 DEFUN ("specifier-tag-list", Fspecifier_tag_list, 0, 0, 0, /* | |
| 1353 Return a list of all currently-defined specifier tags. | |
| 1354 This includes the built-in ones (the device types and classes). | |
| 1355 */ | |
| 1356 ()) | |
| 1357 { | |
| 1358 Lisp_Object list = Qnil, rest; | |
| 1359 struct gcpro gcpro1; | |
| 1360 | |
| 1361 GCPRO1 (list); | |
| 1362 | |
| 1363 LIST_LOOP (rest, Vuser_defined_tags) | |
| 1364 list = Fcons (XCAR (XCAR (rest)), list); | |
| 1365 | |
| 1366 list = Fnreverse (list); | |
| 1367 list = nconc2 (Fcopy_sequence (Vdevice_class_list), list); | |
| 1368 list = nconc2 (Fcopy_sequence (Vconsole_type_list), list); | |
| 1369 | |
| 1370 RETURN_UNGCPRO (list); | |
| 1371 } | |
| 1372 | |
| 3659 | 1373 DEFUN ("specifier-tag-device-predicate", Fspecifier_tag_device_predicate, |
| 1374 1, 1, 0, /* | |
| 1375 Return the device predicate for the given specifier tag. | |
| 428 | 1376 */ |
| 1377 (tag)) | |
| 1378 { | |
| 1379 /* The return value of this function must be GCPRO'd. */ | |
| 1380 CHECK_SYMBOL (tag); | |
| 1381 | |
| 1382 if (NILP (Fvalid_specifier_tag_p (tag))) | |
| 563 | 1383 invalid_argument ("Invalid specifier tag", |
| 3659 | 1384 tag); |
| 428 | 1385 |
| 1386 /* Make up some predicates for the built-in types */ | |
| 1387 | |
| 1388 if (valid_console_type_p (tag)) | |
| 1389 return list3 (Qlambda, list1 (Qdevice), | |
| 1390 list3 (Qeq, list2 (Qquote, tag), | |
| 1391 list2 (Qconsole_type, Qdevice))); | |
| 1392 | |
| 1393 if (valid_device_class_p (tag)) | |
| 1394 return list3 (Qlambda, list1 (Qdevice), | |
| 1395 list3 (Qeq, list2 (Qquote, tag), | |
| 1396 list2 (Qdevice_class, Qdevice))); | |
| 1397 | |
| 3659 | 1398 return XCADR (assq_no_quit (tag, Vuser_defined_tags)); |
| 1399 } | |
| 1400 | |
| 1401 DEFUN ("specifier-tag-charset-predicate", Fspecifier_tag_charset_predicate, | |
| 1402 1, 1, 0, /* | |
| 3673 | 1403 Return the charset predicate for the given specifier tag. |
| 1404 */ | |
| 3659 | 1405 (tag)) |
| 1406 { | |
| 1407 /* The return value of this function must be GCPRO'd. */ | |
| 1408 CHECK_SYMBOL (tag); | |
| 1409 | |
| 1410 if (NILP (Fvalid_specifier_tag_p (tag))) | |
| 1411 invalid_argument ("Invalid specifier tag", | |
| 1412 tag); | |
| 1413 | |
| 1414 return XCADDR (assq_no_quit (tag, Vuser_defined_tags)); | |
| 428 | 1415 } |
| 1416 | |
| 1417 /* Return true if A "matches" B. If EXACT_P is 0, A must be a subset of B. | |
| 3659 | 1418 Otherwise, A must be `equal' to B. The sets must be canonicalized. */ |
| 428 | 1419 static int |
| 1420 tag_sets_match_p (Lisp_Object a, Lisp_Object b, int exact_p) | |
| 1421 { | |
| 1422 if (!exact_p) | |
| 1423 { | |
| 1424 while (!NILP (a) && !NILP (b)) | |
| 1425 { | |
| 1426 if (EQ (XCAR (a), XCAR (b))) | |
| 1427 a = XCDR (a); | |
| 1428 b = XCDR (b); | |
| 1429 } | |
| 1430 | |
| 1431 return NILP (a); | |
| 1432 } | |
| 1433 else | |
| 1434 { | |
| 1435 while (!NILP (a) && !NILP (b)) | |
| 1436 { | |
| 1437 if (!EQ (XCAR (a), XCAR (b))) | |
| 1438 return 0; | |
| 1439 a = XCDR (a); | |
| 1440 b = XCDR (b); | |
| 1441 } | |
| 1442 | |
| 1443 return NILP (a) && NILP (b); | |
| 1444 } | |
| 1445 } | |
| 1446 | |
| 1447 | |
| 1448 /************************************************************************/ | |
| 1449 /* Spec-lists and inst-lists */ | |
| 1450 /************************************************************************/ | |
| 1451 | |
| 1452 static Lisp_Object | |
| 1453 call_validate_method (Lisp_Object boxed_method, Lisp_Object instantiator) | |
| 1454 { | |
| 1455 ((void (*)(Lisp_Object)) get_opaque_ptr (boxed_method)) (instantiator); | |
| 1456 return Qt; | |
| 1457 } | |
| 1458 | |
| 1459 static Lisp_Object | |
| 1460 check_valid_instantiator (Lisp_Object instantiator, | |
| 1461 struct specifier_methods *meths, | |
| 578 | 1462 Error_Behavior errb) |
| 428 | 1463 { |
| 1464 if (meths->validate_method) | |
| 1465 { | |
| 1466 Lisp_Object retval; | |
| 1467 | |
| 1468 if (ERRB_EQ (errb, ERROR_ME)) | |
| 1469 { | |
| 1470 (meths->validate_method) (instantiator); | |
| 1471 retval = Qt; | |
| 1472 } | |
| 1473 else | |
| 1474 { | |
| 1475 Lisp_Object opaque = make_opaque_ptr ((void *) | |
| 1476 meths->validate_method); | |
| 1477 struct gcpro gcpro1; | |
| 1478 | |
| 1479 GCPRO1 (opaque); | |
| 1480 retval = call_with_suspended_errors | |
| 1481 ((lisp_fn_t) call_validate_method, | |
| 1482 Qnil, Qspecifier, errb, 2, opaque, instantiator); | |
| 1483 | |
| 1484 free_opaque_ptr (opaque); | |
| 1485 UNGCPRO; | |
| 1486 } | |
| 1487 | |
| 1488 return retval; | |
| 1489 } | |
| 1490 return Qt; | |
| 1491 } | |
| 1492 | |
| 1493 DEFUN ("check-valid-instantiator", Fcheck_valid_instantiator, 2, 2, 0, /* | |
| 1494 Signal an error if INSTANTIATOR is invalid for SPECIFIER-TYPE. | |
| 1495 */ | |
| 1496 (instantiator, specifier_type)) | |
| 1497 { | |
| 1498 struct specifier_methods *meths = decode_specifier_type (specifier_type, | |
| 1499 ERROR_ME); | |
| 1500 | |
| 1501 return check_valid_instantiator (instantiator, meths, ERROR_ME); | |
| 1502 } | |
| 1503 | |
| 1504 DEFUN ("valid-instantiator-p", Fvalid_instantiator_p, 2, 2, 0, /* | |
| 1505 Return non-nil if INSTANTIATOR is valid for SPECIFIER-TYPE. | |
| 1506 */ | |
| 1507 (instantiator, specifier_type)) | |
| 1508 { | |
| 1509 struct specifier_methods *meths = decode_specifier_type (specifier_type, | |
| 1510 ERROR_ME); | |
| 1511 | |
| 1512 return check_valid_instantiator (instantiator, meths, ERROR_ME_NOT); | |
| 1513 } | |
| 1514 | |
| 1515 static Lisp_Object | |
| 1516 check_valid_inst_list (Lisp_Object inst_list, struct specifier_methods *meths, | |
| 578 | 1517 Error_Behavior errb) |
| 428 | 1518 { |
| 2159 | 1519 EXTERNAL_LIST_LOOP_2 (inst_pair, inst_list) |
| 428 | 1520 { |
| 2159 | 1521 Lisp_Object tag_set; |
| 1522 | |
| 1523 if (!CONSP (inst_pair)) | |
| 428 | 1524 { |
| 563 | 1525 maybe_sferror ( |
| 3659 | 1526 "Invalid instantiator pair", inst_pair, |
| 1527 Qspecifier, errb); | |
| 428 | 1528 return Qnil; |
| 1529 } | |
| 1530 if (NILP (Fvalid_specifier_tag_set_p (tag_set = XCAR (inst_pair)))) | |
| 1531 { | |
| 563 | 1532 maybe_invalid_argument ( |
| 3659 | 1533 "Invalid specifier tag", tag_set, |
| 1534 Qspecifier, errb); | |
| 428 | 1535 return Qnil; |
| 1536 } | |
| 1537 | |
| 1538 if (NILP (check_valid_instantiator (XCDR (inst_pair), meths, errb))) | |
| 1539 return Qnil; | |
| 1540 } | |
| 1541 | |
| 1542 return Qt; | |
| 1543 } | |
| 1544 | |
| 1545 DEFUN ("check-valid-inst-list", Fcheck_valid_inst_list, 2, 2, 0, /* | |
| 1546 Signal an error if INST-LIST is invalid for specifier type TYPE. | |
| 1547 */ | |
| 1548 (inst_list, type)) | |
| 1549 { | |
| 1550 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME); | |
| 1551 | |
| 1552 return check_valid_inst_list (inst_list, meths, ERROR_ME); | |
| 1553 } | |
| 1554 | |
| 1555 DEFUN ("valid-inst-list-p", Fvalid_inst_list_p, 2, 2, 0, /* | |
| 1556 Return non-nil if INST-LIST is valid for specifier type TYPE. | |
| 1557 */ | |
| 1558 (inst_list, type)) | |
| 1559 { | |
| 1560 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME); | |
| 1561 | |
| 1562 return check_valid_inst_list (inst_list, meths, ERROR_ME_NOT); | |
| 1563 } | |
| 1564 | |
| 1565 static Lisp_Object | |
| 1566 check_valid_spec_list (Lisp_Object spec_list, struct specifier_methods *meths, | |
| 578 | 1567 Error_Behavior errb) |
| 428 | 1568 { |
| 2159 | 1569 EXTERNAL_LIST_LOOP_2 (spec, spec_list) |
| 428 | 1570 { |
| 2159 | 1571 Lisp_Object locale; |
| 1572 if (!CONSP (spec)) | |
| 428 | 1573 { |
| 563 | 1574 maybe_sferror ( |
| 3659 | 1575 "Invalid specification list", spec_list, |
| 1576 Qspecifier, errb); | |
| 428 | 1577 return Qnil; |
| 1578 } | |
| 1579 if (NILP (Fvalid_specifier_locale_p (locale = XCAR (spec)))) | |
| 1580 { | |
| 563 | 1581 maybe_invalid_argument ( |
| 3659 | 1582 "Invalid specifier locale", locale, |
| 1583 Qspecifier, errb); | |
| 428 | 1584 return Qnil; |
| 1585 } | |
| 1586 | |
| 1587 if (NILP (check_valid_inst_list (XCDR (spec), meths, errb))) | |
| 1588 return Qnil; | |
| 1589 } | |
| 1590 | |
| 1591 return Qt; | |
| 1592 } | |
| 1593 | |
| 1594 DEFUN ("check-valid-spec-list", Fcheck_valid_spec_list, 2, 2, 0, /* | |
| 1595 Signal an error if SPEC-LIST is invalid for specifier type TYPE. | |
| 1596 */ | |
| 1597 (spec_list, type)) | |
| 1598 { | |
| 1599 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME); | |
| 1600 | |
| 1601 return check_valid_spec_list (spec_list, meths, ERROR_ME); | |
| 1602 } | |
| 1603 | |
| 1604 DEFUN ("valid-spec-list-p", Fvalid_spec_list_p, 2, 2, 0, /* | |
| 1605 Return non-nil if SPEC-LIST is valid for specifier type TYPE. | |
| 1606 */ | |
| 1607 (spec_list, type)) | |
| 1608 { | |
| 1609 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME); | |
| 1610 | |
| 1611 return check_valid_spec_list (spec_list, meths, ERROR_ME_NOT); | |
| 1612 } | |
| 1613 | |
| 1614 enum spec_add_meth | |
| 1615 decode_how_to_add_specification (Lisp_Object how_to_add) | |
| 1616 { | |
| 1617 if (NILP (how_to_add) || EQ (Qremove_tag_set_prepend, how_to_add)) | |
| 1618 return SPEC_REMOVE_TAG_SET_PREPEND; | |
| 1619 if (EQ (Qremove_tag_set_append, how_to_add)) | |
| 1620 return SPEC_REMOVE_TAG_SET_APPEND; | |
| 1621 if (EQ (Qappend, how_to_add)) | |
| 1622 return SPEC_APPEND; | |
| 1623 if (EQ (Qprepend, how_to_add)) | |
| 1624 return SPEC_PREPEND; | |
| 1625 if (EQ (Qremove_locale, how_to_add)) | |
| 1626 return SPEC_REMOVE_LOCALE; | |
| 1627 if (EQ (Qremove_locale_type, how_to_add)) | |
| 1628 return SPEC_REMOVE_LOCALE_TYPE; | |
| 1629 if (EQ (Qremove_all, how_to_add)) | |
| 1630 return SPEC_REMOVE_ALL; | |
| 1631 | |
| 563 | 1632 invalid_constant ("Invalid `how-to-add' flag", how_to_add); |
| 428 | 1633 |
| 1204 | 1634 RETURN_NOT_REACHED (SPEC_PREPEND); |
| 428 | 1635 } |
| 1636 | |
| 1637 /* Given a specifier object SPEC, return bodily specifier if SPEC is a | |
| 1638 ghost specifier, otherwise return the object itself | |
| 1639 */ | |
| 1640 static Lisp_Object | |
| 1641 bodily_specifier (Lisp_Object spec) | |
| 1642 { | |
| 1643 return (GHOST_SPECIFIER_P (XSPECIFIER (spec)) | |
| 5198 | 1644 ? XSPECIFIER (spec)->magic_parent : spec); |
| 428 | 1645 } |
| 1646 | |
| 1647 /* Signal error if (specifier SPEC is read-only. | |
| 1648 Read only are ghost specifiers unless Vunlock_ghost_specifiers is | |
| 1649 non-nil. All other specifiers are read-write. | |
| 1650 */ | |
| 1651 static void | |
| 1652 check_modifiable_specifier (Lisp_Object spec) | |
| 1653 { | |
| 1654 if (NILP (Vunlock_ghost_specifiers) | |
| 1655 && GHOST_SPECIFIER_P (XSPECIFIER (spec))) | |
| 563 | 1656 signal_error (Qsetting_constant, |
| 1657 "Attempt to modify read-only specifier", | |
| 1658 spec); | |
| 428 | 1659 } |
| 1660 | |
| 1661 int | |
| 1662 unlock_ghost_specifiers_protected (void) | |
| 1663 { | |
| 853 | 1664 return internal_bind_lisp_object (&Vunlock_ghost_specifiers, Qt); |
| 428 | 1665 } |
| 1666 | |
| 1667 /* This gets hit so much that the function call overhead had a | |
| 1668 measurable impact (according to Quantify). #### We should figure | |
| 1669 out the frequency with which this is called with the various types | |
| 1670 and reorder the check accordingly. */ | |
| 1671 #define SPECIFIER_GET_SPEC_LIST(specifier, type) \ | |
| 3659 | 1672 (type == LOCALE_GLOBAL ? &(XSPECIFIER (specifier)->global_specs) : \ |
| 1673 type == LOCALE_DEVICE ? &(XSPECIFIER (specifier)->device_specs) : \ | |
| 1674 type == LOCALE_FRAME ? &(XSPECIFIER (specifier)->frame_specs) : \ | |
| 1675 type == LOCALE_WINDOW ? &(XWEAK_LIST_LIST \ | |
| 1676 (XSPECIFIER (specifier)->window_specs)) : \ | |
| 1677 type == LOCALE_BUFFER ? &(XSPECIFIER (specifier)->buffer_specs) : \ | |
| 1678 0) | |
| 428 | 1679 |
| 1680 static Lisp_Object * | |
| 1681 specifier_get_inst_list (Lisp_Object specifier, Lisp_Object locale, | |
| 1682 enum spec_locale_type type) | |
| 1683 { | |
| 1684 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type); | |
| 1685 Lisp_Object specification; | |
| 1686 | |
| 1687 if (type == LOCALE_GLOBAL) | |
| 1688 return spec_list; | |
| 1689 /* Calling assq_no_quit when it is just going to return nil anyhow | |
| 1690 is extremely expensive. So sayeth Quantify. */ | |
| 1691 if (!CONSP (*spec_list)) | |
| 1692 return 0; | |
| 1693 specification = assq_no_quit (locale, *spec_list); | |
| 1694 if (NILP (specification)) | |
| 1695 return 0; | |
| 1696 return &XCDR (specification); | |
| 1697 } | |
| 1698 | |
| 1699 /* For the given INST_LIST, return a new INST_LIST containing all elements | |
| 1700 where TAG-SET matches the element's tag set. EXACT_P indicates whether | |
| 1701 the match must be exact (as opposed to a subset). SHORT_P indicates | |
| 1702 that the short form (for `specifier-specs') should be returned if | |
| 1703 possible. If COPY_TREE_P, `copy-tree' is used to ensure that no | |
| 1704 elements of the new list are shared with the initial list. | |
| 1705 */ | |
| 1706 | |
| 1707 static Lisp_Object | |
| 1708 specifier_process_inst_list (Lisp_Object inst_list, | |
| 1709 Lisp_Object tag_set, int exact_p, | |
| 1710 int short_p, int copy_tree_p) | |
| 1711 { | |
| 1712 Lisp_Object retval = Qnil; | |
| 1713 Lisp_Object rest; | |
| 1714 struct gcpro gcpro1; | |
| 1715 | |
| 1716 GCPRO1 (retval); | |
| 1717 LIST_LOOP (rest, inst_list) | |
| 1718 { | |
| 1719 Lisp_Object tagged_inst = XCAR (rest); | |
| 1720 Lisp_Object tagged_inst_tag = XCAR (tagged_inst); | |
| 1721 if (tag_sets_match_p (tag_set, tagged_inst_tag, exact_p)) | |
| 1722 { | |
| 1723 if (short_p && NILP (tagged_inst_tag)) | |
| 1724 retval = Fcons (copy_tree_p ? | |
| 1725 Fcopy_tree (XCDR (tagged_inst), Qt) : | |
| 1726 XCDR (tagged_inst), | |
| 1727 retval); | |
| 1728 else | |
| 1729 retval = Fcons (copy_tree_p ? Fcopy_tree (tagged_inst, Qt) : | |
| 1730 tagged_inst, retval); | |
| 1731 } | |
| 1732 } | |
| 1733 retval = Fnreverse (retval); | |
| 1734 UNGCPRO; | |
| 1735 /* If there is a single instantiator and the short form is | |
| 1736 requested, return just the instantiator (rather than a one-element | |
| 1737 list of it) unless it is nil (so that it can be distinguished from | |
| 1738 no instantiators at all). */ | |
| 1739 if (short_p && CONSP (retval) && !NILP (XCAR (retval)) && | |
| 1740 NILP (XCDR (retval))) | |
| 1741 return XCAR (retval); | |
| 1742 else | |
| 1743 return retval; | |
| 1744 } | |
| 1745 | |
| 1746 static Lisp_Object | |
| 1747 specifier_get_external_inst_list (Lisp_Object specifier, Lisp_Object locale, | |
| 1748 enum spec_locale_type type, | |
| 1749 Lisp_Object tag_set, int exact_p, | |
| 1750 int short_p, int copy_tree_p) | |
| 1751 { | |
| 1752 Lisp_Object *inst_list = specifier_get_inst_list (specifier, locale, | |
| 1753 type); | |
| 1754 if (!inst_list || NILP (*inst_list)) | |
| 1755 { | |
| 2953 | 1756 /* nil for *inst_list should only occur in `global' */ |
| 428 | 1757 assert (!inst_list || EQ (locale, Qglobal)); |
| 1758 return Qnil; | |
| 1759 } | |
| 1760 | |
| 1761 return specifier_process_inst_list (*inst_list, tag_set, exact_p, | |
| 1762 short_p, copy_tree_p); | |
| 1763 } | |
| 1764 | |
| 1765 static Lisp_Object | |
| 1766 specifier_get_external_spec_list (Lisp_Object specifier, | |
| 1767 enum spec_locale_type type, | |
| 1768 Lisp_Object tag_set, int exact_p) | |
| 1769 { | |
| 1770 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type); | |
| 1771 Lisp_Object retval = Qnil; | |
| 1772 Lisp_Object rest; | |
| 1773 struct gcpro gcpro1; | |
| 1774 | |
| 1775 assert (type != LOCALE_GLOBAL); | |
| 1776 /* We're about to let stuff go external; make sure there aren't | |
| 1777 any dead objects */ | |
| 1778 *spec_list = cleanup_assoc_list (*spec_list); | |
| 1779 | |
| 1780 GCPRO1 (retval); | |
| 1781 LIST_LOOP (rest, *spec_list) | |
| 1782 { | |
| 1783 Lisp_Object spec = XCAR (rest); | |
| 1784 Lisp_Object inst_list = | |
| 1785 specifier_process_inst_list (XCDR (spec), tag_set, exact_p, 0, 1); | |
| 1786 if (!NILP (inst_list)) | |
| 1787 retval = Fcons (Fcons (XCAR (spec), inst_list), retval); | |
| 1788 } | |
| 1789 RETURN_UNGCPRO (Fnreverse (retval)); | |
| 1790 } | |
| 1791 | |
| 1792 static Lisp_Object * | |
| 1793 specifier_new_spec (Lisp_Object specifier, Lisp_Object locale, | |
| 1794 enum spec_locale_type type) | |
| 1795 { | |
| 1796 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type); | |
| 1797 Lisp_Object new_spec = Fcons (locale, Qnil); | |
| 1798 assert (type != LOCALE_GLOBAL); | |
| 1799 *spec_list = Fcons (new_spec, *spec_list); | |
| 1800 return &XCDR (new_spec); | |
| 1801 } | |
| 1802 | |
| 1803 /* For the given INST_LIST, return a new list comprised of elements | |
| 1804 where TAG_SET does not match the element's tag set. This operation | |
| 1805 is destructive. */ | |
| 1806 | |
| 1807 static Lisp_Object | |
| 1808 specifier_process_remove_inst_list (Lisp_Object inst_list, | |
| 1809 Lisp_Object tag_set, int exact_p, | |
| 1810 int *was_removed) | |
| 1811 { | |
| 1812 Lisp_Object prev = Qnil, rest; | |
| 1813 | |
| 1814 *was_removed = 0; | |
| 1815 | |
| 1816 LIST_LOOP (rest, inst_list) | |
| 1817 { | |
| 1818 if (tag_sets_match_p (tag_set, XCAR (XCAR (rest)), exact_p)) | |
| 1819 { | |
| 1820 /* time to remove. */ | |
| 1821 *was_removed = 1; | |
| 1822 if (NILP (prev)) | |
| 1823 inst_list = XCDR (rest); | |
| 1824 else | |
| 1825 XCDR (prev) = XCDR (rest); | |
| 1826 } | |
| 1827 else | |
| 1828 prev = rest; | |
| 1829 } | |
| 1830 | |
| 1831 return inst_list; | |
| 1832 } | |
| 1833 | |
| 1834 static void | |
| 1835 specifier_remove_spec (Lisp_Object specifier, Lisp_Object locale, | |
| 1836 enum spec_locale_type type, | |
| 1837 Lisp_Object tag_set, int exact_p) | |
| 1838 { | |
| 1839 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type); | |
| 1840 Lisp_Object assoc; | |
| 1841 int was_removed; | |
| 1842 | |
| 1843 if (type == LOCALE_GLOBAL) | |
| 1844 *spec_list = specifier_process_remove_inst_list (*spec_list, tag_set, | |
| 1845 exact_p, &was_removed); | |
| 1846 else | |
| 1847 { | |
| 1848 assoc = assq_no_quit (locale, *spec_list); | |
| 1849 if (NILP (assoc)) | |
| 1850 /* this locale is not found. */ | |
| 1851 return; | |
| 1852 XCDR (assoc) = specifier_process_remove_inst_list (XCDR (assoc), | |
| 1853 tag_set, exact_p, | |
| 1854 &was_removed); | |
| 1855 if (NILP (XCDR (assoc))) | |
| 1856 /* no inst-pairs left; remove this locale entirely. */ | |
| 1857 *spec_list = remassq_no_quit (locale, *spec_list); | |
| 1858 } | |
| 1859 | |
| 1860 if (was_removed) | |
| 1861 MAYBE_SPECMETH (XSPECIFIER (specifier), after_change, | |
| 1862 (bodily_specifier (specifier), locale)); | |
| 1863 } | |
| 1864 | |
| 1865 static void | |
| 1866 specifier_remove_locale_type (Lisp_Object specifier, | |
| 1867 enum spec_locale_type type, | |
| 1868 Lisp_Object tag_set, int exact_p) | |
| 1869 { | |
| 1870 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type); | |
| 1871 Lisp_Object prev = Qnil, rest; | |
| 1872 | |
| 1873 assert (type != LOCALE_GLOBAL); | |
| 1874 LIST_LOOP (rest, *spec_list) | |
| 1875 { | |
| 1876 int was_removed; | |
| 1877 int remove_spec = 0; | |
| 1878 Lisp_Object spec = XCAR (rest); | |
| 1879 | |
| 1880 /* There may be dead objects floating around */ | |
| 1881 /* remember, dead windows can become alive again. */ | |
| 1882 if (!WINDOWP (XCAR (spec)) && object_dead_p (XCAR (spec))) | |
| 1883 { | |
| 1884 remove_spec = 1; | |
| 1885 was_removed = 0; | |
| 1886 } | |
| 1887 else | |
| 1888 { | |
| 1889 XCDR (spec) = specifier_process_remove_inst_list (XCDR (spec), | |
| 1890 tag_set, exact_p, | |
| 1891 &was_removed); | |
| 1892 if (NILP (XCDR (spec))) | |
| 1893 remove_spec = 1; | |
| 1894 } | |
| 1895 | |
| 1896 if (remove_spec) | |
| 1897 { | |
| 1898 if (NILP (prev)) | |
| 1899 *spec_list = XCDR (rest); | |
| 1900 else | |
| 1901 XCDR (prev) = XCDR (rest); | |
| 1902 } | |
| 1903 else | |
| 1904 prev = rest; | |
| 1905 | |
| 1906 if (was_removed) | |
| 1907 MAYBE_SPECMETH (XSPECIFIER (specifier), after_change, | |
| 1908 (bodily_specifier (specifier), XCAR (spec))); | |
| 1909 } | |
| 1910 } | |
| 1911 | |
| 1912 /* NEW_LIST is going to be added to INST_LIST, with add method ADD_METH. | |
| 1913 Frob INST_LIST according to ADD_METH. No need to call an after-change | |
| 1914 function; the calling function will do this. Return either SPEC_PREPEND | |
| 1915 or SPEC_APPEND, indicating whether to prepend or append the NEW_LIST. */ | |
| 1916 | |
| 1917 static enum spec_add_meth | |
| 1918 handle_multiple_add_insts (Lisp_Object *inst_list, | |
| 1919 Lisp_Object new_list, | |
| 1920 enum spec_add_meth add_meth) | |
| 1921 { | |
| 1922 switch (add_meth) | |
| 1923 { | |
| 1924 case SPEC_REMOVE_TAG_SET_APPEND: | |
| 1925 add_meth = SPEC_APPEND; | |
| 1926 goto remove_tag_set; | |
| 1927 case SPEC_REMOVE_TAG_SET_PREPEND: | |
| 1928 add_meth = SPEC_PREPEND; | |
| 1929 remove_tag_set: | |
| 1930 { | |
| 1931 Lisp_Object rest; | |
| 1932 | |
| 1933 LIST_LOOP (rest, new_list) | |
| 1934 { | |
| 1935 Lisp_Object canontag = canonicalize_tag_set (XCAR (XCAR (rest))); | |
| 1936 struct gcpro gcpro1; | |
| 1937 | |
| 1938 GCPRO1 (canontag); | |
| 1939 /* pull out all elements from the existing list with the | |
| 1940 same tag as any tags in NEW_LIST. */ | |
| 1941 *inst_list = remassoc_no_quit (canontag, *inst_list); | |
| 1942 UNGCPRO; | |
| 1943 } | |
| 1944 } | |
| 1945 return add_meth; | |
| 1946 case SPEC_REMOVE_LOCALE: | |
| 1947 *inst_list = Qnil; | |
| 1948 return SPEC_PREPEND; | |
| 1949 case SPEC_APPEND: | |
| 1950 return add_meth; | |
| 1951 default: | |
| 1952 return SPEC_PREPEND; | |
| 1953 } | |
| 1954 } | |
| 1955 | |
| 1956 /* Given a LOCALE and INST_LIST that is going to be added to SPECIFIER, | |
| 1957 copy, canonicalize, and call the going_to_add methods as necessary | |
| 1958 to produce a new list that is the one that really will be added | |
| 1959 to the specifier. */ | |
| 1960 | |
| 1961 static Lisp_Object | |
| 1962 build_up_processed_list (Lisp_Object specifier, Lisp_Object locale, | |
| 1963 Lisp_Object inst_list) | |
| 1964 { | |
| 1965 /* The return value of this function must be GCPRO'd. */ | |
| 1966 Lisp_Object rest, list_to_build_up = Qnil; | |
| 440 | 1967 Lisp_Specifier *sp = XSPECIFIER (specifier); |
| 428 | 1968 struct gcpro gcpro1; |
| 1969 | |
| 1970 GCPRO1 (list_to_build_up); | |
| 1971 LIST_LOOP (rest, inst_list) | |
| 1972 { | |
| 1973 Lisp_Object tag_set = XCAR (XCAR (rest)); | |
| 1974 Lisp_Object sub_inst_list = Qnil; | |
| 434 | 1975 Lisp_Object instantiator; |
| 428 | 1976 struct gcpro ngcpro1, ngcpro2; |
| 1977 | |
| 434 | 1978 if (HAS_SPECMETH_P (sp, copy_instantiator)) |
| 1979 instantiator = SPECMETH (sp, copy_instantiator, | |
| 1980 (XCDR (XCAR (rest)))); | |
| 1981 else | |
| 1982 instantiator = Fcopy_tree (XCDR (XCAR (rest)), Qt); | |
| 1983 | |
| 428 | 1984 NGCPRO2 (instantiator, sub_inst_list); |
| 1985 /* call the will-add method; it may GC */ | |
| 1986 sub_inst_list = HAS_SPECMETH_P (sp, going_to_add) ? | |
| 1987 SPECMETH (sp, going_to_add, | |
| 1988 (bodily_specifier (specifier), locale, | |
| 1989 tag_set, instantiator)) : | |
| 1990 Qt; | |
| 1991 if (EQ (sub_inst_list, Qt)) | |
| 1992 /* no change here. */ | |
| 1993 sub_inst_list = list1 (Fcons (canonicalize_tag_set (tag_set), | |
| 1994 instantiator)); | |
| 1995 else | |
| 1996 { | |
| 1997 /* now canonicalize all the tag sets in the new objects */ | |
| 1998 Lisp_Object rest2; | |
| 1999 LIST_LOOP (rest2, sub_inst_list) | |
| 2000 XCAR (XCAR (rest2)) = canonicalize_tag_set (XCAR (XCAR (rest2))); | |
| 2001 } | |
| 2002 | |
| 2003 list_to_build_up = nconc2 (sub_inst_list, list_to_build_up); | |
| 2004 NUNGCPRO; | |
| 2005 } | |
| 2006 | |
| 2007 RETURN_UNGCPRO (Fnreverse (list_to_build_up)); | |
| 2008 } | |
| 2009 | |
| 2010 /* Add a specification (locale and instantiator list) to a specifier. | |
| 2011 ADD_METH specifies what to do with existing specifications in the | |
| 2012 specifier, and is an enum that corresponds to the values in | |
| 2013 `add-spec-to-specifier'. The calling routine is responsible for | |
| 2014 validating LOCALE and INST-LIST, but the tag-sets in INST-LIST | |
| 2015 do not need to be canonicalized. */ | |
| 2016 | |
| 3659 | 2017 /* #### I really need to rethink the after-change |
| 2018 functions to make them easier to use and more efficient. */ | |
| 428 | 2019 |
| 2020 static void | |
| 2021 specifier_add_spec (Lisp_Object specifier, Lisp_Object locale, | |
| 2022 Lisp_Object inst_list, enum spec_add_meth add_meth) | |
| 2023 { | |
| 440 | 2024 Lisp_Specifier *sp = XSPECIFIER (specifier); |
| 428 | 2025 enum spec_locale_type type = locale_type_from_locale (locale); |
| 2026 Lisp_Object *orig_inst_list, tem; | |
| 2027 Lisp_Object list_to_build_up = Qnil; | |
| 2028 struct gcpro gcpro1; | |
| 2029 | |
| 1015 | 2030 if (NILP (inst_list)) |
| 2031 return; | |
| 2032 | |
| 428 | 2033 GCPRO1 (list_to_build_up); |
| 2034 list_to_build_up = build_up_processed_list (specifier, locale, inst_list); | |
| 2035 /* Now handle REMOVE_LOCALE_TYPE and REMOVE_ALL. These are the | |
| 2036 add-meth types that affect locales other than this one. */ | |
| 2037 if (add_meth == SPEC_REMOVE_LOCALE_TYPE) | |
| 2038 specifier_remove_locale_type (specifier, type, Qnil, 0); | |
| 2039 else if (add_meth == SPEC_REMOVE_ALL) | |
| 2040 { | |
| 2041 specifier_remove_locale_type (specifier, LOCALE_BUFFER, Qnil, 0); | |
| 2042 specifier_remove_locale_type (specifier, LOCALE_WINDOW, Qnil, 0); | |
| 2043 specifier_remove_locale_type (specifier, LOCALE_FRAME, Qnil, 0); | |
| 2044 specifier_remove_locale_type (specifier, LOCALE_DEVICE, Qnil, 0); | |
| 2045 specifier_remove_spec (specifier, Qglobal, LOCALE_GLOBAL, Qnil, 0); | |
| 2046 } | |
| 2047 | |
| 2048 orig_inst_list = specifier_get_inst_list (specifier, locale, type); | |
| 2049 if (!orig_inst_list) | |
| 2050 orig_inst_list = specifier_new_spec (specifier, locale, type); | |
| 2051 add_meth = handle_multiple_add_insts (orig_inst_list, list_to_build_up, | |
| 2052 add_meth); | |
| 2053 | |
| 2054 if (add_meth == SPEC_PREPEND) | |
| 2055 tem = nconc2 (list_to_build_up, *orig_inst_list); | |
| 2056 else if (add_meth == SPEC_APPEND) | |
| 2057 tem = nconc2 (*orig_inst_list, list_to_build_up); | |
| 2058 else | |
| 442 | 2059 { |
| 2500 | 2060 ABORT (); |
| 442 | 2061 tem = Qnil; |
| 2062 } | |
| 428 | 2063 |
| 2064 *orig_inst_list = tem; | |
| 2065 | |
| 2066 UNGCPRO; | |
| 2067 | |
| 2068 /* call the after-change method */ | |
| 2069 MAYBE_SPECMETH (sp, after_change, | |
| 2070 (bodily_specifier (specifier), locale)); | |
| 2071 } | |
| 2072 | |
| 2073 static void | |
| 2074 specifier_copy_spec (Lisp_Object specifier, Lisp_Object dest, | |
| 2075 Lisp_Object locale, enum spec_locale_type type, | |
| 2076 Lisp_Object tag_set, int exact_p, | |
| 2077 enum spec_add_meth add_meth) | |
| 2078 { | |
| 2079 Lisp_Object inst_list = | |
| 2080 specifier_get_external_inst_list (specifier, locale, type, tag_set, | |
| 2081 exact_p, 0, 0); | |
| 2082 specifier_add_spec (dest, locale, inst_list, add_meth); | |
| 2083 } | |
| 2084 | |
| 2085 static void | |
| 2086 specifier_copy_locale_type (Lisp_Object specifier, Lisp_Object dest, | |
| 2087 enum spec_locale_type type, | |
| 2088 Lisp_Object tag_set, int exact_p, | |
| 2089 enum spec_add_meth add_meth) | |
| 2090 { | |
| 2091 Lisp_Object *src_list = SPECIFIER_GET_SPEC_LIST (specifier, type); | |
| 2092 Lisp_Object rest; | |
| 2093 | |
| 2094 /* This algorithm is O(n^2) in running time. | |
| 2095 It's certainly possible to implement an O(n log n) algorithm, | |
| 2096 but I doubt there's any need to. */ | |
| 2097 | |
| 2098 LIST_LOOP (rest, *src_list) | |
| 2099 { | |
| 2100 Lisp_Object spec = XCAR (rest); | |
| 2101 /* There may be dead objects floating around */ | |
| 2102 /* remember, dead windows can become alive again. */ | |
| 2103 if (WINDOWP (XCAR (spec)) || !object_dead_p (XCAR (spec))) | |
| 2104 specifier_add_spec | |
| 2105 (dest, XCAR (spec), | |
| 2106 specifier_process_inst_list (XCDR (spec), tag_set, exact_p, 0, 0), | |
| 2107 add_meth); | |
| 2108 } | |
| 2109 } | |
| 2110 | |
| 2111 /* map MAPFUN over the locales in SPECIFIER that are given in LOCALE. | |
| 2112 CLOSURE is passed unchanged to MAPFUN. LOCALE can be one of | |
| 2113 | |
| 3659 | 2114 -- nil (same as `all') |
| 2115 -- a single locale, locale type, or `all' | |
| 2116 -- a list of locales, locale types, and/or `all' | |
| 2953 | 2117 |
| 2118 MAPFUN is called for each locale and locale type given; for `all', | |
| 2119 it is called for the locale `global' and for the four possible | |
| 428 | 2120 locale types. In each invocation, either LOCALE will be a locale |
| 2121 and LOCALE_TYPE will be the locale type of this locale, | |
| 2122 or LOCALE will be nil and LOCALE_TYPE will be a locale type. | |
| 2123 If MAPFUN ever returns non-zero, the mapping is halted and the | |
| 2124 value returned is returned from map_specifier(). Otherwise, the | |
| 2125 mapping proceeds to the end and map_specifier() returns 0. | |
| 3659 | 2126 */ |
| 428 | 2127 |
| 2128 static int | |
| 2129 map_specifier (Lisp_Object specifier, Lisp_Object locale, | |
| 2130 int (*mapfun) (Lisp_Object specifier, | |
| 2131 Lisp_Object locale, | |
| 2132 enum spec_locale_type locale_type, | |
| 2133 Lisp_Object tag_set, | |
| 2134 int exact_p, | |
| 2135 void *closure), | |
| 2136 Lisp_Object tag_set, Lisp_Object exact_p, | |
| 2137 void *closure) | |
| 2138 { | |
| 2139 int retval = 0; | |
| 2140 Lisp_Object rest; | |
| 2141 struct gcpro gcpro1, gcpro2; | |
| 2142 | |
| 2143 GCPRO2 (tag_set, locale); | |
| 2144 locale = decode_locale_list (locale); | |
| 2145 tag_set = decode_specifier_tag_set (tag_set); | |
| 2146 tag_set = canonicalize_tag_set (tag_set); | |
| 2147 | |
| 2148 LIST_LOOP (rest, locale) | |
| 2149 { | |
| 2150 Lisp_Object theloc = XCAR (rest); | |
| 2151 if (!NILP (Fvalid_specifier_locale_p (theloc))) | |
| 2152 { | |
| 2153 retval = (*mapfun) (specifier, theloc, | |
| 2154 locale_type_from_locale (theloc), | |
| 2155 tag_set, !NILP (exact_p), closure); | |
| 2156 if (retval) | |
| 2157 break; | |
| 2158 } | |
| 2159 else if (!NILP (Fvalid_specifier_locale_type_p (theloc))) | |
| 2160 { | |
| 2161 retval = (*mapfun) (specifier, Qnil, | |
| 2162 decode_locale_type (theloc), tag_set, | |
| 2163 !NILP (exact_p), closure); | |
| 2164 if (retval) | |
| 2165 break; | |
| 2166 } | |
| 2167 else | |
| 2168 { | |
| 2169 assert (EQ (theloc, Qall)); | |
| 2170 retval = (*mapfun) (specifier, Qnil, LOCALE_BUFFER, tag_set, | |
| 2171 !NILP (exact_p), closure); | |
| 2172 if (retval) | |
| 2173 break; | |
| 2174 retval = (*mapfun) (specifier, Qnil, LOCALE_WINDOW, tag_set, | |
| 2175 !NILP (exact_p), closure); | |
| 2176 if (retval) | |
| 2177 break; | |
| 2178 retval = (*mapfun) (specifier, Qnil, LOCALE_FRAME, tag_set, | |
| 2179 !NILP (exact_p), closure); | |
| 2180 if (retval) | |
| 2181 break; | |
| 2182 retval = (*mapfun) (specifier, Qnil, LOCALE_DEVICE, tag_set, | |
| 2183 !NILP (exact_p), closure); | |
| 2184 if (retval) | |
| 2185 break; | |
| 2186 retval = (*mapfun) (specifier, Qglobal, LOCALE_GLOBAL, tag_set, | |
| 2187 !NILP (exact_p), closure); | |
| 2188 if (retval) | |
| 2189 break; | |
| 2190 } | |
| 2191 } | |
| 2192 | |
| 2193 UNGCPRO; | |
| 2194 return retval; | |
| 2195 } | |
| 2196 | |
| 2197 DEFUN ("add-spec-to-specifier", Fadd_spec_to_specifier, 2, 5, 0, /* | |
| 2198 Add a specification to SPECIFIER. | |
| 2199 The specification maps from LOCALE (which should be a window, buffer, | |
| 2953 | 2200 frame, device, or `global', and defaults to `global') to INSTANTIATOR, |
| 428 | 2201 whose allowed values depend on the type of the specifier. Optional |
| 2202 argument TAG-SET limits the instantiator to apply only to the specified | |
| 2203 tag set, which should be a list of tags all of which must match the | |
| 2204 device being instantiated over (tags are a device type, a device class, | |
| 2205 or tags defined with `define-specifier-tag'). Specifying a single | |
| 2206 symbol for TAG-SET is equivalent to specifying a one-element list | |
| 2207 containing that symbol. Optional argument HOW-TO-ADD specifies what to | |
| 2208 do if there are already specifications in the specifier. | |
| 2209 It should be one of | |
| 2210 | |
| 2953 | 2211 `prepend' Put at the beginning of the current list of |
| 428 | 2212 instantiators for LOCALE. |
| 2953 | 2213 `append' Add to the end of the current list of |
| 428 | 2214 instantiators for LOCALE. |
| 2953 | 2215 `remove-tag-set-prepend' (this is the default) |
| 428 | 2216 Remove any existing instantiators whose tag set is |
| 2217 the same as TAG-SET; then put the new instantiator | |
| 2218 at the beginning of the current list. ("Same tag | |
| 2219 set" means that they contain the same elements. | |
| 2220 The order may be different.) | |
| 2953 | 2221 `remove-tag-set-append' |
| 428 | 2222 Remove any existing instantiators whose tag set is |
| 2223 the same as TAG-SET; then put the new instantiator | |
| 2224 at the end of the current list. | |
| 2953 | 2225 `remove-locale' Remove all previous instantiators for this locale |
| 428 | 2226 before adding the new spec. |
| 2953 | 2227 `remove-locale-type' Remove all specifications for all locales of the |
| 428 | 2228 same type as LOCALE (this includes LOCALE itself) |
| 2229 before adding the new spec. | |
| 2953 | 2230 `remove-all' Remove all specifications from the specifier |
| 428 | 2231 before adding the new spec. |
| 2232 | |
| 2233 You can retrieve the specifications for a particular locale or locale type | |
| 2234 with the function `specifier-spec-list' or `specifier-specs'. | |
| 2235 */ | |
| 2236 (specifier, instantiator, locale, tag_set, how_to_add)) | |
| 2237 { | |
| 2238 enum spec_add_meth add_meth; | |
| 2239 Lisp_Object inst_list; | |
| 2240 struct gcpro gcpro1; | |
| 2241 | |
| 2242 CHECK_SPECIFIER (specifier); | |
| 2243 check_modifiable_specifier (specifier); | |
| 2244 | |
| 2245 locale = decode_locale (locale); | |
| 2246 check_valid_instantiator (instantiator, | |
| 2247 decode_specifier_type | |
| 2248 (Fspecifier_type (specifier), ERROR_ME), | |
| 2249 ERROR_ME); | |
| 2250 /* tag_set might be newly-created material, but it's part of inst_list | |
| 2251 so is properly GC-protected. */ | |
| 2252 tag_set = decode_specifier_tag_set (tag_set); | |
| 2253 add_meth = decode_how_to_add_specification (how_to_add); | |
| 2254 | |
| 2255 inst_list = list1 (Fcons (tag_set, instantiator)); | |
| 2256 GCPRO1 (inst_list); | |
| 2257 specifier_add_spec (specifier, locale, inst_list, add_meth); | |
| 2258 recompute_cached_specifier_everywhere (specifier); | |
| 2259 RETURN_UNGCPRO (Qnil); | |
| 2260 } | |
| 2261 | |
| 2262 DEFUN ("add-spec-list-to-specifier", Fadd_spec_list_to_specifier, 2, 3, 0, /* | |
| 444 | 2263 Add SPEC-LIST (a list of specifications) to SPECIFIER. |
| 2264 The format of SPEC-LIST is | |
| 428 | 2265 |
| 2266 ((LOCALE (TAG-SET . INSTANTIATOR) ...) ...) | |
| 2267 | |
| 2268 where | |
| 2953 | 2269 LOCALE := a window, a buffer, a frame, a device, or `global' |
| 428 | 2270 TAG-SET := an unordered list of zero or more TAGS, each of which |
|
4426
515b91f904c1
Fix specifier inheritance behavior
Didier Verna <didier@xemacs.org>
parents:
3836
diff
changeset
|
2271 is a symbol |
| 428 | 2272 TAG := a device class (see `valid-device-class-p'), a device type |
|
4426
515b91f904c1
Fix specifier inheritance behavior
Didier Verna <didier@xemacs.org>
parents:
3836
diff
changeset
|
2273 (see `valid-console-type-p'), or a tag defined with |
|
515b91f904c1
Fix specifier inheritance behavior
Didier Verna <didier@xemacs.org>
parents:
3836
diff
changeset
|
2274 `define-specifier-tag' |
| 428 | 2275 INSTANTIATOR := format determined by the type of specifier |
| 2276 | |
| 2277 The pair (TAG-SET . INSTANTIATOR) is called an `inst-pair'. | |
| 2278 A list of inst-pairs is called an `inst-list'. | |
| 2279 The pair (LOCALE . INST-LIST) is called a `specification' or `spec'. | |
| 2280 A spec-list, then, can be viewed as a list of specifications. | |
| 2281 | |
| 2282 HOW-TO-ADD specifies how to combine the new specifications with | |
| 2283 the existing ones, and has the same semantics as for | |
| 2284 `add-spec-to-specifier'. | |
| 2285 | |
| 2286 In many circumstances, the higher-level function `set-specifier' is | |
| 2287 more convenient and should be used instead. | |
| 2288 */ | |
| 2289 (specifier, spec_list, how_to_add)) | |
| 2290 { | |
| 2291 enum spec_add_meth add_meth; | |
| 2292 Lisp_Object rest; | |
| 2293 | |
| 2294 CHECK_SPECIFIER (specifier); | |
| 2295 check_modifiable_specifier (specifier); | |
| 2296 | |
| 2297 check_valid_spec_list (spec_list, | |
| 2298 decode_specifier_type | |
| 2299 (Fspecifier_type (specifier), ERROR_ME), | |
| 2300 ERROR_ME); | |
| 2301 add_meth = decode_how_to_add_specification (how_to_add); | |
| 2302 | |
| 2303 LIST_LOOP (rest, spec_list) | |
| 2304 { | |
| 2305 /* Placating the GCC god. */ | |
| 2306 Lisp_Object specification = XCAR (rest); | |
| 2307 Lisp_Object locale = XCAR (specification); | |
| 2308 Lisp_Object inst_list = XCDR (specification); | |
| 2309 | |
| 2310 specifier_add_spec (specifier, locale, inst_list, add_meth); | |
| 2311 } | |
| 2312 recompute_cached_specifier_everywhere (specifier); | |
| 2313 return Qnil; | |
| 2314 } | |
| 2315 | |
| 2316 void | |
| 2317 add_spec_to_ghost_specifier (Lisp_Object specifier, Lisp_Object instantiator, | |
| 2318 Lisp_Object locale, Lisp_Object tag_set, | |
| 2319 Lisp_Object how_to_add) | |
| 2320 { | |
| 2321 int depth = unlock_ghost_specifiers_protected (); | |
| 5198 | 2322 Fadd_spec_to_specifier (XSPECIFIER (specifier)->fallback, |
| 428 | 2323 instantiator, locale, tag_set, how_to_add); |
| 771 | 2324 unbind_to (depth); |
| 428 | 2325 } |
| 2326 | |
| 2327 struct specifier_spec_list_closure | |
| 2328 { | |
| 2329 Lisp_Object head, tail; | |
| 2330 }; | |
| 2331 | |
| 2332 static int | |
| 2333 specifier_spec_list_mapfun (Lisp_Object specifier, | |
| 2334 Lisp_Object locale, | |
| 2335 enum spec_locale_type locale_type, | |
| 2336 Lisp_Object tag_set, | |
| 2337 int exact_p, | |
| 2338 void *closure) | |
| 2339 { | |
| 2340 struct specifier_spec_list_closure *cl = | |
| 2341 (struct specifier_spec_list_closure *) closure; | |
| 2342 Lisp_Object partial; | |
| 2343 | |
| 2344 if (NILP (locale)) | |
| 2345 partial = specifier_get_external_spec_list (specifier, | |
| 2346 locale_type, | |
| 2347 tag_set, exact_p); | |
| 2348 else | |
| 2349 { | |
| 2350 partial = specifier_get_external_inst_list (specifier, locale, | |
| 2351 locale_type, tag_set, | |
| 2352 exact_p, 0, 1); | |
| 2353 if (!NILP (partial)) | |
| 2354 partial = list1 (Fcons (locale, partial)); | |
| 2355 } | |
| 2356 if (NILP (partial)) | |
| 2357 return 0; | |
| 2358 | |
| 2359 /* tack on the new list */ | |
| 2360 if (NILP (cl->tail)) | |
| 2361 cl->head = cl->tail = partial; | |
| 2362 else | |
| 2363 XCDR (cl->tail) = partial; | |
| 2364 /* find the new tail */ | |
| 2365 while (CONSP (XCDR (cl->tail))) | |
| 2366 cl->tail = XCDR (cl->tail); | |
| 2367 return 0; | |
| 2368 } | |
| 2369 | |
| 2370 /* For the given SPECIFIER create and return a list of all specs | |
| 2371 contained within it, subject to LOCALE. If LOCALE is a locale, only | |
| 2372 specs in that locale will be returned. If LOCALE is a locale type, | |
| 2373 all specs in all locales of that type will be returned. If LOCALE is | |
| 2374 nil, all specs will be returned. This always copies lists and never | |
| 2375 returns the actual lists, because we do not want someone manipulating | |
| 2376 the actual objects. This may cause a slight loss of potential | |
| 2377 functionality but if we were to allow it then a user could manage to | |
| 2378 violate our assertion that the specs contained in the actual | |
| 2379 specifier lists are all valid. */ | |
| 2380 | |
| 2381 DEFUN ("specifier-spec-list", Fspecifier_spec_list, 1, 4, 0, /* | |
| 2382 Return the spec-list of specifications for SPECIFIER in LOCALE. | |
| 2383 | |
| 2384 If LOCALE is a particular locale (a buffer, window, frame, device, | |
| 2953 | 2385 or `global'), a spec-list consisting of the specification for that |
| 428 | 2386 locale will be returned. |
| 2387 | |
| 2953 | 2388 If LOCALE is a locale type (i.e. `buffer', `window', `frame', or `device'), |
| 428 | 2389 a spec-list of the specifications for all locales of that type will be |
| 2390 returned. | |
| 2391 | |
| 2953 | 2392 If LOCALE is nil or `all', a spec-list of all specifications in SPECIFIER |
| 428 | 2393 will be returned. |
| 2394 | |
| 2953 | 2395 LOCALE can also be a list of locales, locale types, and/or `all'; the |
| 428 | 2396 result is as if `specifier-spec-list' were called on each element of the |
| 2397 list and the results concatenated together. | |
| 2398 | |
| 2399 Only instantiators where TAG-SET (a list of zero or more tags) is a | |
| 2400 subset of (or possibly equal to) the instantiator's tag set are returned. | |
| 2401 \(The default value of nil is a subset of all tag sets, so in this case | |
| 2402 no instantiators will be screened out.) If EXACT-P is non-nil, however, | |
| 2403 TAG-SET must be equal to an instantiator's tag set for the instantiator | |
| 2404 to be returned. | |
| 2405 */ | |
| 3659 | 2406 (specifier, locale, tag_set, exact_p)) |
| 428 | 2407 { |
| 2408 struct specifier_spec_list_closure cl; | |
| 2409 struct gcpro gcpro1, gcpro2; | |
| 2410 | |
| 2411 CHECK_SPECIFIER (specifier); | |
| 2412 cl.head = cl.tail = Qnil; | |
| 2413 GCPRO2 (cl.head, cl.tail); | |
| 2414 map_specifier (specifier, locale, specifier_spec_list_mapfun, | |
| 2415 tag_set, exact_p, &cl); | |
| 2416 UNGCPRO; | |
| 2417 return cl.head; | |
| 2418 } | |
| 2419 | |
| 2420 | |
| 2421 DEFUN ("specifier-specs", Fspecifier_specs, 1, 4, 0, /* | |
| 2422 Return the specification(s) for SPECIFIER in LOCALE. | |
| 2423 | |
| 2424 If LOCALE is a single locale or is a list of one element containing a | |
| 2425 single locale, then a "short form" of the instantiators for that locale | |
| 2426 will be returned. Otherwise, this function is identical to | |
| 2427 `specifier-spec-list'. | |
| 2428 | |
| 2429 The "short form" is designed for readability and not for ease of use | |
| 2430 in Lisp programs, and is as follows: | |
| 2431 | |
| 2432 1. If there is only one instantiator, then an inst-pair (i.e. cons of | |
| 2433 tag and instantiator) will be returned; otherwise a list of | |
| 2434 inst-pairs will be returned. | |
| 2953 | 2435 2. For each inst-pair returned, if the instantiator's tag is `any', |
| 428 | 2436 the tag will be removed and the instantiator itself will be returned |
| 2437 instead of the inst-pair. | |
| 2438 3. If there is only one instantiator, its value is nil, and its tag is | |
| 2953 | 2439 `any', a one-element list containing nil will be returned rather |
| 428 | 2440 than just nil, to distinguish this case from there being no |
| 2441 instantiators at all. | |
| 2442 */ | |
| 2443 (specifier, locale, tag_set, exact_p)) | |
| 2444 { | |
| 2445 if (!NILP (Fvalid_specifier_locale_p (locale)) || | |
| 2446 (CONSP (locale) && !NILP (Fvalid_specifier_locale_p (XCAR (locale))) && | |
| 2447 NILP (XCDR (locale)))) | |
| 2448 { | |
| 2449 struct gcpro gcpro1; | |
| 2450 | |
| 2451 CHECK_SPECIFIER (specifier); | |
| 2452 if (CONSP (locale)) | |
| 2453 locale = XCAR (locale); | |
| 2454 GCPRO1 (tag_set); | |
| 2455 tag_set = decode_specifier_tag_set (tag_set); | |
| 2456 tag_set = canonicalize_tag_set (tag_set); | |
| 2457 RETURN_UNGCPRO | |
| 2458 (specifier_get_external_inst_list (specifier, locale, | |
| 2459 locale_type_from_locale (locale), | |
| 2460 tag_set, !NILP (exact_p), 1, 1)); | |
| 2461 } | |
| 2462 else | |
| 2463 return Fspecifier_spec_list (specifier, locale, tag_set, exact_p); | |
| 2464 } | |
| 2465 | |
| 2466 static int | |
| 2467 remove_specifier_mapfun (Lisp_Object specifier, | |
| 2468 Lisp_Object locale, | |
| 2469 enum spec_locale_type locale_type, | |
| 2470 Lisp_Object tag_set, | |
| 2471 int exact_p, | |
| 2286 | 2472 void *UNUSED (closure)) |
| 428 | 2473 { |
| 2474 if (NILP (locale)) | |
| 2475 specifier_remove_locale_type (specifier, locale_type, tag_set, exact_p); | |
| 2476 else | |
| 2477 specifier_remove_spec (specifier, locale, locale_type, tag_set, exact_p); | |
| 2478 return 0; | |
| 2479 } | |
| 2480 | |
| 2481 DEFUN ("remove-specifier", Fremove_specifier, 1, 4, 0, /* | |
| 2482 Remove specification(s) for SPECIFIER. | |
| 2483 | |
| 2484 If LOCALE is a particular locale (a window, buffer, frame, device, | |
| 2953 | 2485 or `global'), the specification for that locale will be removed. |
| 2486 | |
| 2487 If instead, LOCALE is a locale type (i.e. `window', `buffer', `frame', | |
| 2488 or `device'), the specifications for all locales of that type will be | |
| 428 | 2489 removed. |
| 2490 | |
| 2953 | 2491 If LOCALE is nil or `all', all specifications will be removed. |
| 2492 | |
| 2493 LOCALE can also be a list of locales, locale types, and/or `all'; this | |
| 428 | 2494 is equivalent to calling `remove-specifier' for each of the elements |
| 2495 in the list. | |
| 2496 | |
| 2497 Only instantiators where TAG-SET (a list of zero or more tags) is a | |
| 2498 subset of (or possibly equal to) the instantiator's tag set are removed. | |
| 2499 The default value of nil is a subset of all tag sets, so in this case | |
| 2500 no instantiators will be screened out. If EXACT-P is non-nil, however, | |
| 2501 TAG-SET must be equal to an instantiator's tag set for the instantiator | |
| 2502 to be removed. | |
| 2503 */ | |
| 2504 (specifier, locale, tag_set, exact_p)) | |
| 2505 { | |
| 2506 CHECK_SPECIFIER (specifier); | |
| 2507 check_modifiable_specifier (specifier); | |
| 2508 | |
| 2509 map_specifier (specifier, locale, remove_specifier_mapfun, | |
| 2510 tag_set, exact_p, 0); | |
| 2511 recompute_cached_specifier_everywhere (specifier); | |
| 2512 return Qnil; | |
| 2513 } | |
| 2514 | |
| 2515 void | |
| 2516 remove_ghost_specifier (Lisp_Object specifier, Lisp_Object locale, | |
| 2517 Lisp_Object tag_set, Lisp_Object exact_p) | |
| 2518 { | |
| 2519 int depth = unlock_ghost_specifiers_protected (); | |
| 5198 | 2520 Fremove_specifier (XSPECIFIER (specifier)->fallback, |
| 428 | 2521 locale, tag_set, exact_p); |
| 771 | 2522 unbind_to (depth); |
| 428 | 2523 } |
| 2524 | |
| 2525 struct copy_specifier_closure | |
| 2526 { | |
| 2527 Lisp_Object dest; | |
| 2528 enum spec_add_meth add_meth; | |
| 2529 int add_meth_is_nil; | |
| 2530 }; | |
| 2531 | |
| 2532 static int | |
| 2533 copy_specifier_mapfun (Lisp_Object specifier, | |
| 2534 Lisp_Object locale, | |
| 2535 enum spec_locale_type locale_type, | |
| 2536 Lisp_Object tag_set, | |
| 2537 int exact_p, | |
| 2538 void *closure) | |
| 2539 { | |
| 2540 struct copy_specifier_closure *cl = | |
| 2541 (struct copy_specifier_closure *) closure; | |
| 2542 | |
| 2543 if (NILP (locale)) | |
| 2544 specifier_copy_locale_type (specifier, cl->dest, locale_type, | |
| 2545 tag_set, exact_p, | |
| 2546 cl->add_meth_is_nil ? | |
| 2547 SPEC_REMOVE_LOCALE_TYPE : | |
| 2548 cl->add_meth); | |
| 2549 else | |
| 2550 specifier_copy_spec (specifier, cl->dest, locale, locale_type, | |
| 2551 tag_set, exact_p, | |
| 2552 cl->add_meth_is_nil ? SPEC_REMOVE_LOCALE : | |
| 2553 cl->add_meth); | |
| 2554 return 0; | |
| 2555 } | |
| 2556 | |
| 2557 DEFUN ("copy-specifier", Fcopy_specifier, 1, 6, 0, /* | |
| 2558 Copy SPECIFIER to DEST, or create a new one if DEST is nil. | |
| 2559 | |
| 2560 If DEST is nil or omitted, a new specifier will be created and the | |
| 2561 specifications copied into it. Otherwise, the specifications will be | |
| 2562 copied into the existing specifier in DEST. | |
| 2563 | |
| 2953 | 2564 If LOCALE is nil or `all', all specifications will be copied. If LOCALE |
| 428 | 2565 is a particular locale, the specification for that particular locale will |
| 2566 be copied. If LOCALE is a locale type, the specifications for all locales | |
| 2567 of that type will be copied. LOCALE can also be a list of locales, | |
| 2953 | 2568 locale types, and/or `all'; this is equivalent to calling `copy-specifier' |
| 428 | 2569 for each of the elements of the list. See `specifier-spec-list' for more |
| 2570 information about LOCALE. | |
| 2571 | |
| 2572 Only instantiators where TAG-SET (a list of zero or more tags) is a | |
| 2573 subset of (or possibly equal to) the instantiator's tag set are copied. | |
| 2574 The default value of nil is a subset of all tag sets, so in this case | |
| 2575 no instantiators will be screened out. If EXACT-P is non-nil, however, | |
| 2576 TAG-SET must be equal to an instantiator's tag set for the instantiator | |
| 2577 to be copied. | |
| 2578 | |
| 2579 Optional argument HOW-TO-ADD specifies what to do with existing | |
| 2580 specifications in DEST. If nil, then whichever locales or locale types | |
| 2581 are copied will first be completely erased in DEST. Otherwise, it is | |
| 2582 the same as in `add-spec-to-specifier'. | |
| 2583 */ | |
| 2584 (specifier, dest, locale, tag_set, exact_p, how_to_add)) | |
| 2585 { | |
| 2586 struct gcpro gcpro1; | |
| 2587 struct copy_specifier_closure cl; | |
| 2588 | |
| 2589 CHECK_SPECIFIER (specifier); | |
| 2590 if (NILP (how_to_add)) | |
| 2591 cl.add_meth_is_nil = 1; | |
| 2592 else | |
| 2593 cl.add_meth_is_nil = 0; | |
| 2594 cl.add_meth = decode_how_to_add_specification (how_to_add); | |
| 2595 if (NILP (dest)) | |
| 2596 { | |
| 2597 /* #### What about copying the extra data? */ | |
| 2598 dest = make_specifier (XSPECIFIER (specifier)->methods); | |
| 2599 } | |
| 2600 else | |
| 2601 { | |
| 2602 CHECK_SPECIFIER (dest); | |
| 2603 check_modifiable_specifier (dest); | |
| 2604 if (XSPECIFIER (dest)->methods != XSPECIFIER (specifier)->methods) | |
| 3659 | 2605 invalid_argument ("Specifiers not of same type", Qunbound); |
| 428 | 2606 } |
| 2607 | |
| 2608 cl.dest = dest; | |
| 2609 GCPRO1 (dest); | |
| 2610 map_specifier (specifier, locale, copy_specifier_mapfun, | |
| 2611 tag_set, exact_p, &cl); | |
| 2612 UNGCPRO; | |
| 2613 recompute_cached_specifier_everywhere (dest); | |
| 2614 return dest; | |
| 2615 } | |
| 2616 | |
| 2617 | |
| 2618 /************************************************************************/ | |
| 2953 | 2619 /* Instantiation */ |
| 428 | 2620 /************************************************************************/ |
| 2621 | |
| 2622 static Lisp_Object | |
| 2623 call_validate_matchspec_method (Lisp_Object boxed_method, | |
| 2624 Lisp_Object matchspec) | |
| 2625 { | |
| 2626 ((void (*)(Lisp_Object)) get_opaque_ptr (boxed_method)) (matchspec); | |
| 2627 return Qt; | |
| 2628 } | |
| 2629 | |
| 2630 static Lisp_Object | |
| 2631 check_valid_specifier_matchspec (Lisp_Object matchspec, | |
| 2632 struct specifier_methods *meths, | |
| 578 | 2633 Error_Behavior errb) |
| 428 | 2634 { |
| 2635 if (meths->validate_matchspec_method) | |
| 2636 { | |
| 2637 Lisp_Object retval; | |
| 2638 | |
| 2639 if (ERRB_EQ (errb, ERROR_ME)) | |
| 2640 { | |
| 2641 (meths->validate_matchspec_method) (matchspec); | |
| 2642 retval = Qt; | |
| 2643 } | |
| 2644 else | |
| 2645 { | |
| 2646 Lisp_Object opaque = | |
| 2647 make_opaque_ptr ((void *) meths->validate_matchspec_method); | |
| 2648 struct gcpro gcpro1; | |
| 2649 | |
| 2650 GCPRO1 (opaque); | |
| 2651 retval = call_with_suspended_errors | |
| 2652 ((lisp_fn_t) call_validate_matchspec_method, | |
| 2653 Qnil, Qspecifier, errb, 2, opaque, matchspec); | |
| 2654 | |
| 2655 free_opaque_ptr (opaque); | |
| 2656 UNGCPRO; | |
| 2657 } | |
| 2658 | |
| 2659 return retval; | |
| 2660 } | |
| 2661 else | |
| 2662 { | |
| 563 | 2663 maybe_sferror |
| 428 | 2664 ("Matchspecs not allowed for this specifier type", |
| 2665 intern (meths->name), Qspecifier, errb); | |
| 2666 return Qnil; | |
| 2667 } | |
| 2668 } | |
| 2669 | |
| 442 | 2670 DEFUN ("check-valid-specifier-matchspec", Fcheck_valid_specifier_matchspec, 2, |
| 2671 2, 0, /* | |
| 428 | 2672 Signal an error if MATCHSPEC is invalid for SPECIFIER-TYPE. |
| 2673 See `specifier-matching-instance' for a description of matchspecs. | |
| 2674 */ | |
| 2675 (matchspec, specifier_type)) | |
| 2676 { | |
| 2677 struct specifier_methods *meths = decode_specifier_type (specifier_type, | |
| 2678 ERROR_ME); | |
| 2679 | |
| 2680 return check_valid_specifier_matchspec (matchspec, meths, ERROR_ME); | |
| 2681 } | |
| 2682 | |
| 2683 DEFUN ("valid-specifier-matchspec-p", Fvalid_specifier_matchspec_p, 2, 2, 0, /* | |
| 2684 Return non-nil if MATCHSPEC is valid for SPECIFIER-TYPE. | |
| 2685 See `specifier-matching-instance' for a description of matchspecs. | |
| 2686 */ | |
| 2687 (matchspec, specifier_type)) | |
| 2688 { | |
| 2689 struct specifier_methods *meths = decode_specifier_type (specifier_type, | |
| 2690 ERROR_ME); | |
| 2691 | |
| 2692 return check_valid_specifier_matchspec (matchspec, meths, ERROR_ME_NOT); | |
| 2693 } | |
| 2694 | |
| 2695 /* This function is purposely not callable from Lisp. If a Lisp | |
| 2696 caller wants to set a fallback, they should just set the | |
| 2697 global value. */ | |
| 2698 | |
| 2699 void | |
| 2700 set_specifier_fallback (Lisp_Object specifier, Lisp_Object fallback) | |
| 2701 { | |
| 440 | 2702 Lisp_Specifier *sp = XSPECIFIER (specifier); |
| 428 | 2703 assert (SPECIFIERP (fallback) || |
| 2704 !NILP (Fvalid_inst_list_p (fallback, Fspecifier_type (specifier)))); | |
| 2705 if (SPECIFIERP (fallback)) | |
| 2706 assert (EQ (Fspecifier_type (specifier), Fspecifier_type (fallback))); | |
| 2707 if (BODILY_SPECIFIER_P (sp)) | |
| 5198 | 2708 GHOST_SPECIFIER (sp)->fallback = fallback; |
| 428 | 2709 else |
| 2710 sp->fallback = fallback; | |
| 2711 /* call the after-change method */ | |
| 2712 MAYBE_SPECMETH (sp, after_change, | |
| 2713 (bodily_specifier (specifier), Qfallback)); | |
| 2714 recompute_cached_specifier_everywhere (specifier); | |
| 2715 } | |
| 2716 | |
| 2717 DEFUN ("specifier-fallback", Fspecifier_fallback, 1, 1, 0, /* | |
| 2718 Return the fallback value for SPECIFIER. | |
| 2719 Fallback values are provided by the C code for certain built-in | |
| 2953 | 2720 specifiers to make sure that instantiation won't fail even if all |
| 428 | 2721 specs are removed from the specifier, or to implement simple |
| 2722 inheritance behavior (e.g. this method is used to ensure that | |
| 2953 | 2723 faces other than `default' inherit their attributes from `default'). |
| 428 | 2724 By design, you cannot change the fallback value, and specifiers |
| 2725 created with `make-specifier' will never have a fallback (although | |
| 2726 a similar, Lisp-accessible capability may be provided in the future | |
| 2727 to allow for inheritance). | |
| 2728 | |
| 2953 | 2729 The fallback value will be an inst-list that is instantiated like |
| 428 | 2730 any other inst-list, a specifier of the same type as SPECIFIER |
| 2731 \(results in inheritance), or nil for no fallback. | |
| 2732 | |
| 2953 | 2733 When you instantiate a specifier, you can explicitly request that the |
| 428 | 2734 fallback not be consulted. (The C code does this, for example, when |
| 2735 merging faces.) See `specifier-instance'. | |
| 2736 */ | |
| 2737 (specifier)) | |
| 2738 { | |
| 2739 CHECK_SPECIFIER (specifier); | |
| 2740 return Fcopy_tree (XSPECIFIER (specifier)->fallback, Qt); | |
| 2741 } | |
| 2742 | |
| 2743 static Lisp_Object | |
| 2744 specifier_instance_from_inst_list (Lisp_Object specifier, | |
| 2745 Lisp_Object matchspec, | |
| 2746 Lisp_Object domain, | |
| 2747 Lisp_Object inst_list, | |
| 578 | 2748 Error_Behavior errb, int no_quit, |
| 2953 | 2749 Lisp_Object depth, |
|
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2750 Lisp_Object *instantiator, |
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2751 int no_fallback) |
| 428 | 2752 { |
| 2753 /* This function can GC */ | |
| 440 | 2754 Lisp_Specifier *sp; |
| 3659 | 2755 Lisp_Object device, charset = Qnil, rest; |
| 2756 int count = specpdl_depth (), respected_charsets = 0; | |
| 428 | 2757 struct gcpro gcpro1, gcpro2; |
|
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|
2758 enum font_specifier_matchspec_stages stage = STAGE_INITIAL; |
| 428 | 2759 |
| 2760 GCPRO2 (specifier, inst_list); | |
| 2761 | |
| 2762 sp = XSPECIFIER (specifier); | |
| 442 | 2763 device = DOMAIN_DEVICE (domain); |
| 428 | 2764 |
| 2765 if (no_quit) | |
| 3659 | 2766 /* The instantiate method is allowed to call eval. Since it |
| 2767 is quite common for this function to get called from somewhere in | |
| 2768 redisplay we need to make sure that quits are ignored. Otherwise | |
| 2769 Fsignal will abort. */ | |
| 428 | 2770 specbind (Qinhibit_quit, Qt); |
| 2771 | |
| 3659 | 2772 #ifdef MULE |
| 4828 | 2773 /* #### FIXME Does this font-specific stuff need to be here and not in |
| 2774 the font-specifier-specific code? --ben */ | |
|
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|
2775 if (CONSP (matchspec) && (CHARSETP (Ffind_charset (XCAR (matchspec))))) |
| 3659 | 2776 { |
|
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2777 charset = Ffind_charset (XCAR (matchspec)); |
| 3659 | 2778 |
| 2779 #ifdef DEBUG_XEMACS | |
| 2780 /* This is mostly to have somewhere to set debug breakpoints. */ | |
| 4853 | 2781 if (!EQ (charset, Vcharset_ascii)) |
| 3659 | 2782 { |
| 4853 | 2783 (void) 0; |
| 3659 | 2784 } |
| 2785 #endif /* DEBUG_XEMACS */ | |
| 2786 | |
|
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|
2787 if (!NILP (XCDR (matchspec))) |
| 3659 | 2788 { |
| 2789 | |
|
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|
2790 #define FROB(new_stage, enumstage) \ |
|
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2791 if (EQ (Q##new_stage, XCDR (matchspec))) \ |
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|
2792 { \ |
|
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2793 stage = enumstage; \ |
| 3659 | 2794 } |
| 2795 | |
|
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2796 FROB (initial, STAGE_INITIAL) |
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2797 else FROB (final, STAGE_FINAL) |
| 5198 | 2798 else assert (0); |
| 3659 | 2799 #undef FROB |
| 2800 | |
| 2801 } | |
| 2802 } | |
| 2803 #endif /* MULE */ | |
| 2804 | |
| 5198 | 2805 LIST_LOOP (rest, inst_list) |
| 3659 | 2806 { |
| 2807 Lisp_Object tagged_inst = XCAR (rest); | |
| 2808 Lisp_Object tag_set = XCAR (tagged_inst); | |
| 2809 Lisp_Object val, the_instantiator; | |
| 2810 | |
| 2811 if (!device_matches_specifier_tag_set_p (device, tag_set)) | |
| 2812 { | |
|
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2813 continue; |
| 3659 | 2814 } |
| 2815 | |
| 2816 val = XCDR (tagged_inst); | |
| 2817 the_instantiator = val; | |
| 2818 | |
| 5198 | 2819 if (!NILP (charset) && |
| 3659 | 2820 !(charset_matches_specifier_tag_set_p (charset, tag_set, stage))) |
| 2821 { | |
| 2822 ++respected_charsets; | |
| 2823 continue; | |
| 2824 } | |
| 2825 | |
| 2826 if (HAS_SPECMETH_P (sp, instantiate)) | |
| 2827 val = call_with_suspended_errors | |
| 2828 ((lisp_fn_t) RAW_SPECMETH (sp, instantiate), | |
| 2829 Qunbound, Qspecifier, errb, 5, specifier, | |
|
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2830 matchspec, domain, val, depth, no_fallback); |
| 3659 | 2831 |
| 2832 if (!UNBOUNDP (val)) | |
| 2833 { | |
| 2834 unbind_to (count); | |
| 2835 UNGCPRO; | |
| 2836 if (instantiator) | |
| 2837 *instantiator = the_instantiator; | |
| 2838 return val; | |
| 2839 } | |
| 2840 } | |
| 2841 | |
| 2842 /* We've checked all the tag sets, and checking the charset part of the | |
| 2843 specifier never returned 0 (preventing the attempted instantiation), so | |
| 2844 there's no need to loop for the second time to avoid checking the | |
| 2845 charsets. */ | |
| 2846 if (!respected_charsets) | |
| 2847 { | |
| 2848 unbind_to (count); | |
| 2849 UNGCPRO; | |
| 2850 return Qunbound; | |
| 2851 } | |
| 2852 | |
| 2853 /* Right, didn't instantiate a specifier last time, perhaps because we | |
| 2854 paid attention to the charset-specific aspects of the specifier. Try | |
| 2855 again without checking the charset information. | |
| 2856 | |
| 2857 We can't emulate the approach for devices, defaulting to matching all | |
| 2858 character sets for a given specifier, because $random font instantiator | |
| 2859 cannot usefully show all character sets, and indeed having it try is a | |
| 2860 failure on our part. */ | |
| 428 | 2861 LIST_LOOP (rest, inst_list) |
| 2862 { | |
| 2863 Lisp_Object tagged_inst = XCAR (rest); | |
| 2864 Lisp_Object tag_set = XCAR (tagged_inst); | |
| 3659 | 2865 Lisp_Object val, the_instantiator; |
| 2866 | |
| 2867 if (!device_matches_specifier_tag_set_p (device, tag_set)) | |
| 428 | 2868 { |
|
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2869 continue; |
| 3659 | 2870 } |
| 2871 | |
| 2872 val = XCDR (tagged_inst); | |
| 2873 the_instantiator = val; | |
| 2874 | |
| 2875 if (HAS_SPECMETH_P (sp, instantiate)) | |
| 2876 val = call_with_suspended_errors | |
| 2877 ((lisp_fn_t) RAW_SPECMETH (sp, instantiate), | |
| 2878 Qunbound, Qspecifier, errb, 5, specifier, | |
|
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|
2879 matchspec, domain, val, depth, no_fallback); |
| 3659 | 2880 |
| 2881 if (!UNBOUNDP (val)) | |
| 2882 { | |
| 2883 unbind_to (count); | |
| 2884 UNGCPRO; | |
| 2885 if (instantiator) | |
| 2886 *instantiator = the_instantiator; | |
| 2887 return val; | |
| 428 | 2888 } |
| 2889 } | |
| 2890 | |
| 771 | 2891 unbind_to (count); |
| 428 | 2892 UNGCPRO; |
| 2893 return Qunbound; | |
| 2894 } | |
| 2895 | |
| 2896 /* Given a SPECIFIER and a DOMAIN, return a specific instance for that | |
| 2897 specifier. Try to find one by checking the specifier types from most | |
| 4437 | 2898 specific (window) to most general (global). If we find an instance, |
| 428 | 2899 return it. Otherwise return Qunbound. */ |
| 2900 | |
| 2901 #define CHECK_INSTANCE_ENTRY(key, matchspec, type) do { \ | |
| 3659 | 2902 Lisp_Object *CIE_inst_list = \ |
| 2903 specifier_get_inst_list (specifier, key, type); \ | |
| 2904 if (CIE_inst_list) \ | |
| 2905 { \ | |
| 2906 Lisp_Object CIE_val = \ | |
| 2907 specifier_instance_from_inst_list (specifier, matchspec, \ | |
| 2908 domain, *CIE_inst_list, \ | |
| 2909 errb, no_quit, depth, \ | |
|
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2910 instantiator, no_fallback); \ |
| 3659 | 2911 if (!UNBOUNDP (CIE_val)) \ |
| 2912 return CIE_val; \ | |
| 2913 } \ | |
| 2914 } while (0) | |
| 428 | 2915 |
| 2916 /* We accept any window, frame or device domain and do our checking | |
| 2917 starting from as specific a locale type as we can determine from the | |
| 2918 domain we are passed and going on up through as many other locale types | |
| 2919 as we can determine. In practice, when called from redisplay the | |
| 2920 arg will usually be a window and occasionally a frame. If | |
| 2921 triggered by a user call, who knows what it will usually be. */ | |
| 2953 | 2922 |
| 2923 static Lisp_Object | |
| 2924 specifier_instance_1 (Lisp_Object specifier, Lisp_Object matchspec, | |
| 2925 Lisp_Object domain, Error_Behavior errb, int no_quit, | |
| 2926 int no_fallback, Lisp_Object depth, | |
| 2927 Lisp_Object *instantiator) | |
| 428 | 2928 { |
| 2929 Lisp_Object buffer = Qnil; | |
| 2930 Lisp_Object window = Qnil; | |
| 2931 Lisp_Object frame = Qnil; | |
| 2932 Lisp_Object device = Qnil; | |
| 444 | 2933 Lisp_Specifier *sp = XSPECIFIER (specifier); |
| 428 | 2934 |
| 2953 | 2935 if (instantiator) |
| 2936 *instantiator = Qunbound; | |
| 2937 | |
| 428 | 2938 /* Attempt to determine buffer, window, frame, and device from the |
| 2939 domain. */ | |
| 442 | 2940 /* #### get image instances out of domains! */ |
| 2941 if (IMAGE_INSTANCEP (domain)) | |
| 2942 window = DOMAIN_WINDOW (domain); | |
| 2943 else if (WINDOWP (domain)) | |
| 428 | 2944 window = domain; |
| 2945 else if (FRAMEP (domain)) | |
| 2946 frame = domain; | |
| 2947 else if (DEVICEP (domain)) | |
| 2948 device = domain; | |
| 2949 else | |
| 442 | 2950 /* dmoore writes: [dammit, this should just signal an error or something |
| 2951 shouldn't it?] | |
| 2952 | |
| 2953 No. Errors are handled in Lisp primitives implementation. | |
| 428 | 2954 Invalid domain is a design error here - kkm. */ |
| 2500 | 2955 ABORT (); |
| 428 | 2956 |
| 2957 if (NILP (buffer) && !NILP (window)) | |
| 444 | 2958 buffer = WINDOW_BUFFER (XWINDOW (window)); |
| 428 | 2959 if (NILP (frame) && !NILP (window)) |
| 2960 frame = XWINDOW (window)->frame; | |
| 2961 if (NILP (device)) | |
| 2962 /* frame had better exist; if device is undeterminable, something | |
| 2963 really went wrong. */ | |
| 444 | 2964 device = FRAME_DEVICE (XFRAME (frame)); |
| 428 | 2965 |
| 2966 /* device had better be determined by now; abort if not. */ | |
| 2286 | 2967 (void) DEVICE_CLASS (XDEVICE (device)); |
| 428 | 2968 |
| 2969 depth = make_int (1 + XINT (depth)); | |
| 2970 if (XINT (depth) > 20) | |
| 2971 { | |
| 563 | 2972 maybe_signal_error (Qstack_overflow, |
| 2973 "Apparent loop in specifier inheritance", | |
| 2974 Qunbound, Qspecifier, errb); | |
| 428 | 2975 /* The specification is fucked; at least try the fallback |
| 2976 (which better not be fucked, because it's not changeable | |
| 2977 from Lisp). */ | |
| 2978 depth = Qzero; | |
| 2979 goto do_fallback; | |
| 2980 } | |
| 2981 | |
| 434 | 2982 retry: |
| 428 | 2983 /* First see if we can generate one from the window specifiers. */ |
| 2984 if (!NILP (window)) | |
| 2985 CHECK_INSTANCE_ENTRY (window, matchspec, LOCALE_WINDOW); | |
| 2986 | |
| 2987 /* Next see if we can generate one from the buffer specifiers. */ | |
| 2988 if (!NILP (buffer)) | |
| 2989 CHECK_INSTANCE_ENTRY (buffer, matchspec, LOCALE_BUFFER); | |
| 2990 | |
| 2991 /* Next see if we can generate one from the frame specifiers. */ | |
| 2992 if (!NILP (frame)) | |
| 2993 CHECK_INSTANCE_ENTRY (frame, matchspec, LOCALE_FRAME); | |
| 2994 | |
| 2995 /* If we still haven't succeeded try with the device specifiers. */ | |
| 2996 CHECK_INSTANCE_ENTRY (device, matchspec, LOCALE_DEVICE); | |
| 2997 | |
| 2998 /* Last and least try the global specifiers. */ | |
| 2999 CHECK_INSTANCE_ENTRY (Qglobal, matchspec, LOCALE_GLOBAL); | |
| 3000 | |
| 434 | 3001 do_fallback: |
| 428 | 3002 /* We're out of specifiers and we still haven't generated an |
| 3003 instance. At least try the fallback ... If this fails, | |
| 3004 then we just return Qunbound. */ | |
| 3005 | |
| 3006 if (no_fallback || NILP (sp->fallback)) | |
| 3007 /* I said, I don't want the fallbacks. */ | |
| 3008 return Qunbound; | |
| 3009 | |
| 3010 if (SPECIFIERP (sp->fallback)) | |
| 3011 { | |
| 3012 /* If you introduced loops in the default specifier chain, | |
| 3013 then you're fucked, so you better not do this. */ | |
| 3014 specifier = sp->fallback; | |
| 3015 sp = XSPECIFIER (specifier); | |
| 3016 goto retry; | |
| 3017 } | |
| 3018 | |
| 3019 assert (CONSP (sp->fallback)); | |
| 3020 return specifier_instance_from_inst_list (specifier, matchspec, domain, | |
| 3021 sp->fallback, errb, no_quit, | |
|
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diff
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|
3022 depth, instantiator, |
|
515b91f904c1
Fix specifier inheritance behavior
Didier Verna <didier@xemacs.org>
parents:
3836
diff
changeset
|
3023 no_fallback); |
| 428 | 3024 } |
| 3025 #undef CHECK_INSTANCE_ENTRY | |
| 3026 | |
| 3027 Lisp_Object | |
| 2953 | 3028 specifier_instance (Lisp_Object specifier, Lisp_Object matchspec, |
| 3029 Lisp_Object domain, Error_Behavior errb, int no_quit, | |
| 3030 int no_fallback, Lisp_Object depth) | |
| 3031 { | |
| 3032 return specifier_instance_1 (specifier, matchspec, domain, errb, | |
| 3033 no_quit, no_fallback, depth, NULL); | |
| 3034 } | |
| 3035 | |
| 3036 Lisp_Object | |
| 428 | 3037 specifier_instance_no_quit (Lisp_Object specifier, Lisp_Object matchspec, |
| 578 | 3038 Lisp_Object domain, Error_Behavior errb, |
| 428 | 3039 int no_fallback, Lisp_Object depth) |
| 3040 { | |
| 2953 | 3041 return specifier_instance_1 (specifier, matchspec, domain, errb, |
| 3042 1, no_fallback, depth, NULL); | |
| 3043 } | |
| 3044 | |
| 3045 static Lisp_Object | |
| 3046 specifier_matching_foo (Lisp_Object specifier, | |
| 3047 Lisp_Object matchspec, | |
| 3048 Lisp_Object domain, | |
| 3049 Lisp_Object default_, | |
| 3050 Lisp_Object no_fallback, | |
| 3051 int want_instantiator) | |
| 3052 { | |
| 3053 Lisp_Object instance, instantiator; | |
| 3054 | |
| 3055 CHECK_SPECIFIER (specifier); | |
| 3056 if (!UNBOUNDP (matchspec)) | |
| 3057 check_valid_specifier_matchspec (matchspec, | |
| 3058 XSPECIFIER (specifier)->methods, | |
| 3059 ERROR_ME); | |
| 3060 domain = decode_domain (domain); | |
| 3061 | |
| 3062 instance = specifier_instance_1 (specifier, matchspec, domain, ERROR_ME, | |
| 3063 0, !NILP (no_fallback), Qzero, | |
| 3064 &instantiator); | |
| 3065 return UNBOUNDP (instance) ? default_ : want_instantiator ? instantiator : | |
| 3066 instance; | |
| 428 | 3067 } |
| 3068 | |
| 3069 DEFUN ("specifier-instance", Fspecifier_instance, 1, 4, 0, /* | |
| 3070 Instantiate SPECIFIER (return its value) in DOMAIN. | |
| 3071 If no instance can be generated for this domain, return DEFAULT. | |
| 3072 | |
| 2953 | 3073 DOMAIN is nearly always a window (defaulting to the selected window if |
| 3074 omitted), but can be a window, frame, or device. Other values that are legal | |
| 428 | 3075 as a locale (e.g. a buffer) are not valid as a domain because they do not |
| 3076 provide enough information to identify a particular device (see | |
| 2953 | 3077 `valid-specifier-domain-p'). Window domains are used internally in nearly |
| 3078 all circumstances when computing specifier instances of display properties. | |
| 3079 Frame domains are used in a few circumstances (such as when computing the | |
| 3080 geometry of a frame based on properties such as the toolbar widths), and | |
| 3081 device domains are rarely if ever used internally. | |
| 3082 | |
| 3083 This function looks through the specifications in SPECIFIER that correspond | |
| 3084 to DOMAIN, from most specific (specifications for DOMAIN itself) to most | |
| 3085 general (global specifications), for matching instantiators, and attempts | |
| 3086 to compute an instance value for each instantiator found. The first | |
| 3087 successfully computed value is returned. The corresponding instantiator | |
| 3088 can be returned using `specifier-instantiator'. | |
| 3089 | |
| 3090 A specifier is a generalized object for controlling the value of a property -- | |
| 3091 typically, but not necessarily, a display-related property -- that can vary | |
| 3092 over particular buffers, frames, device types, etc. | |
| 3093 | |
| 3094 A fundamental distinction must be made between the specification of a | |
| 3095 property's value, and the resulting value itself. This distinction is | |
| 3096 clearest in the case of an image -- the specification describes the source | |
| 3097 of the image (for example, a file of JPEG data), and the resulting value | |
| 3098 encapsulates a window-system object describing the image as displayed on a | |
| 3099 particular device (for example, a particular X display). The specification | |
| 3100 might also be an instruction of the form "use the background pixmap of the | |
| 3101 `modeline' face". A similar mapping exists between color strings and | |
| 3102 color-instance objects, and font strings and font-instance objects. In | |
| 3103 some cases, the specification and the resulting value are of the same type, | |
| 3104 but the distinction is still logically made. | |
| 3105 | |
| 3106 The specification of a value is called an instantiator, and the resulting | |
| 3107 value the instance. | |
| 428 | 3108 |
| 3109 "Instantiating" a specifier in a particular domain means determining | |
| 3110 the specifier's "value" in that domain. This is accomplished by | |
| 3111 searching through the specifications in the specifier that correspond | |
| 3112 to all locales that can be derived from the given domain, from specific | |
| 3113 to general. In most cases, the domain is an Emacs window. In that case | |
| 3114 specifications are searched for as follows: | |
| 3115 | |
| 3116 1. A specification whose locale is the window itself; | |
| 3117 2. A specification whose locale is the window's buffer; | |
| 3118 3. A specification whose locale is the window's frame; | |
| 3119 4. A specification whose locale is the window's frame's device; | |
| 2953 | 3120 5. A specification whose locale is `global'. |
| 428 | 3121 |
| 3122 If all of those fail, then the C-code-provided fallback value for | |
| 3123 this specifier is consulted (see `specifier-fallback'). If it is | |
| 3124 an inst-list, then this function attempts to instantiate that list | |
| 3125 just as when a specification is located in the first five steps above. | |
| 3126 If the fallback is a specifier, `specifier-instance' is called | |
| 3127 recursively on this specifier and the return value used. Note, | |
| 3128 however, that if the optional argument NO-FALLBACK is non-nil, | |
| 3129 the fallback value will not be consulted. | |
| 3130 | |
| 3131 Note that there may be more than one specification matching a particular | |
| 3132 locale; all such specifications are considered before looking for any | |
| 3133 specifications for more general locales. Any particular specification | |
| 3134 that is found may be rejected because its tag set does not match the | |
| 3135 device being instantiated over, or because the specification is not | |
| 3136 valid for the device of the given domain (e.g. the font or color name | |
| 3137 does not exist for this particular X server). | |
| 3138 | |
| 793 | 3139 NOTE: When errors occur in the process of trying a particular instantiator, |
| 3140 and the instantiator is thus skipped, warnings will be issued at level | |
| 3141 `debug'. Normally, such warnings are ignored entirely, but you can change | |
| 3142 this by setting `log-warning-minimum-level'. This is useful if you're | |
| 3143 trying to debug why particular instantiators are not being processed. | |
| 3144 | |
| 428 | 3145 The returned value is dependent on the type of specifier. For example, |
| 3146 for a font specifier (as returned by the `face-font' function), the returned | |
| 3147 value will be a font-instance object. For glyphs, the returned value | |
| 2953 | 3148 will be an image-instance object. |
| 428 | 3149 |
| 3150 See also `specifier-matching-instance'. | |
| 3151 */ | |
| 3152 (specifier, domain, default_, no_fallback)) | |
| 3153 { | |
| 2953 | 3154 return specifier_matching_foo (specifier, Qunbound, domain, default_, |
| 3155 no_fallback, 0); | |
| 3156 } | |
| 3157 | |
| 3158 DEFUN ("specifier-instantiator", Fspecifier_instantiator, 1, 4, 0, /* | |
| 3159 Return instantiator that would be used to instantiate SPECIFIER in DOMAIN. | |
| 3160 If no instance can be generated for this domain, return DEFAULT. | |
| 3161 | |
| 3162 DOMAIN should be a window, frame, or device. Other values that are legal | |
| 3163 as a locale (e.g. a buffer) are not valid as a domain because they do not | |
| 3164 provide enough information to identify a particular device (see | |
| 3165 `valid-specifier-domain-p'). DOMAIN defaults to the selected window | |
| 3166 if omitted. | |
| 3167 | |
| 3168 See `specifier-instance' for more information about the instantiation process. | |
| 3169 */ | |
| 3170 (specifier, domain, default_, no_fallback)) | |
| 3171 { | |
| 3172 return specifier_matching_foo (specifier, Qunbound, domain, default_, | |
| 3173 no_fallback, 1); | |
| 428 | 3174 } |
| 3175 | |
| 3176 DEFUN ("specifier-matching-instance", Fspecifier_matching_instance, 2, 5, 0, /* | |
| 3177 Return an instance for SPECIFIER in DOMAIN that matches MATCHSPEC. | |
| 3178 If no instance can be generated for this domain, return DEFAULT. | |
| 3179 | |
| 3180 This function is identical to `specifier-instance' except that a | |
| 3181 specification will only be considered if it matches MATCHSPEC. | |
| 3182 The definition of "match", and allowed values for MATCHSPEC, are | |
| 3183 dependent on the particular type of specifier. Here are some examples: | |
| 3184 | |
| 3185 -- For chartable (e.g. display table) specifiers, MATCHSPEC should be a | |
| 3186 character, and the specification (a chartable) must give a value for | |
| 3187 that character in order to be considered. This allows you to specify, | |
| 3188 e.g., a buffer-local display table that only gives values for particular | |
| 3189 characters. All other characters are handled as if the buffer-local | |
| 3190 display table is not there. (Chartable specifiers are not yet | |
| 3191 implemented.) | |
| 3192 | |
|
4426
515b91f904c1
Fix specifier inheritance behavior
Didier Verna <didier@xemacs.org>
parents:
3836
diff
changeset
|
3193 -- For font specifiers, MATCHSPEC should be a cons (CHARSET . STAGE). |
| 3674 | 3194 The defined stages are currently `initial' and `final'. On X11, 'initial |
| 3195 is used when the font matching process is looking for fonts that match | |
| 3196 the desired registries of the charset--see the `charset-registries' | |
| 3197 function. If that match process fails, then the 'final stage comes into | |
| 3198 play; this means that a more general lookup is desired, and that a font | |
| 3199 doesn't necessarily have to match the desired XLFD for the face, just the | |
| 3200 charset repertoire for this charset. It also means that the charset | |
| 3201 registry and encoding used will be `iso10646-1', and the characters will | |
| 3202 be converted to display using that registry. | |
| 3203 | |
| 3204 See `define-specifier-tag' for details on how to create a tag that | |
| 3205 specifies a given character set and stage combination. You can supply | |
| 3206 such a tag to `set-face-font' in order to set a face's font for that | |
| 3207 character set and stage combination. | |
| 428 | 3208 */ |
| 3209 (specifier, matchspec, domain, default_, no_fallback)) | |
| 3210 { | |
| 2953 | 3211 return specifier_matching_foo (specifier, matchspec, domain, default_, |
| 3212 no_fallback, 0); | |
| 3213 } | |
| 3214 | |
| 3215 DEFUN ("specifier-matching-instantiator", Fspecifier_matching_instantiator, | |
| 3216 2, 5, 0, /* | |
| 3217 Return instantiator for instance of SPECIFIER in DOMAIN that matches MATCHSPEC. | |
| 3218 If no instance can be generated for this domain, return DEFAULT. | |
| 3219 | |
| 3220 This function is identical to `specifier-matching-instance' but returns | |
| 3221 the instantiator used to generate the instance, rather than the actual | |
| 3222 instance. | |
| 3223 */ | |
| 3224 (specifier, matchspec, domain, default_, no_fallback)) | |
| 3225 { | |
| 3226 return specifier_matching_foo (specifier, matchspec, domain, default_, | |
| 3227 no_fallback, 1); | |
| 3228 } | |
| 3229 | |
| 3230 static Lisp_Object | |
| 3231 specifier_matching_foo_from_inst_list (Lisp_Object specifier, | |
| 3232 Lisp_Object matchspec, | |
| 3233 Lisp_Object domain, | |
| 3234 Lisp_Object inst_list, | |
| 3235 Lisp_Object default_, | |
| 3236 int want_instantiator) | |
| 3237 { | |
| 3238 Lisp_Object val = Qunbound; | |
| 3239 Lisp_Specifier *sp = XSPECIFIER (specifier); | |
| 3240 struct gcpro gcpro1; | |
| 3241 Lisp_Object built_up_list = Qnil; | |
| 3242 Lisp_Object instantiator; | |
| 428 | 3243 |
| 3244 CHECK_SPECIFIER (specifier); | |
| 2953 | 3245 if (!UNBOUNDP (matchspec)) |
| 3246 check_valid_specifier_matchspec (matchspec, | |
| 3247 XSPECIFIER (specifier)->methods, | |
| 3248 ERROR_ME); | |
| 3249 check_valid_domain (domain); | |
| 3250 check_valid_inst_list (inst_list, sp->methods, ERROR_ME); | |
| 3251 GCPRO1 (built_up_list); | |
| 3252 built_up_list = build_up_processed_list (specifier, domain, inst_list); | |
| 3253 if (!NILP (built_up_list)) | |
| 3254 val = specifier_instance_from_inst_list (specifier, matchspec, domain, | |
| 3255 built_up_list, ERROR_ME, | |
|
4426
515b91f904c1
Fix specifier inheritance behavior
Didier Verna <didier@xemacs.org>
parents:
3836
diff
changeset
|
3256 0, Qzero, &instantiator, 0); |
| 2953 | 3257 UNGCPRO; |
| 3258 return UNBOUNDP (val) ? default_ : want_instantiator ? instantiator : val; | |
| 3259 | |
| 428 | 3260 } |
| 3261 | |
| 3262 DEFUN ("specifier-instance-from-inst-list", Fspecifier_instance_from_inst_list, | |
| 3263 3, 4, 0, /* | |
| 3264 Attempt to convert a particular inst-list into an instance. | |
| 3265 This attempts to instantiate INST-LIST in the given DOMAIN, | |
| 3266 as if INST-LIST existed in a specification in SPECIFIER. If | |
| 3267 the instantiation fails, DEFAULT is returned. In most circumstances, | |
| 3268 you should not use this function; use `specifier-instance' instead. | |
| 3269 */ | |
| 3270 (specifier, domain, inst_list, default_)) | |
| 3271 { | |
| 2953 | 3272 return specifier_matching_foo_from_inst_list (specifier, Qunbound, |
| 3273 domain, inst_list, default_, | |
| 3274 0); | |
| 3275 } | |
| 3276 | |
|
4426
515b91f904c1
Fix specifier inheritance behavior
Didier Verna <didier@xemacs.org>
parents:
3836
diff
changeset
|
3277 DEFUN ("specifier-instantiator-from-inst-list", |
| 3659 | 3278 Fspecifier_instantiator_from_inst_list, 3, 4, 0, /* |
| 2953 | 3279 Attempt to convert an inst-list into an instance; return instantiator. |
| 3280 This is identical to `specifier-instance-from-inst-list' but returns | |
| 3281 the instantiator used to generate the instance, rather than the instance | |
| 3282 itself. | |
| 3283 */ | |
| 3284 (specifier, domain, inst_list, default_)) | |
| 3285 { | |
| 3286 return specifier_matching_foo_from_inst_list (specifier, Qunbound, | |
| 3287 domain, inst_list, default_, | |
| 3288 1); | |
| 428 | 3289 } |
| 3290 | |
| 442 | 3291 DEFUN ("specifier-matching-instance-from-inst-list", |
| 3292 Fspecifier_matching_instance_from_inst_list, | |
| 428 | 3293 4, 5, 0, /* |
| 3294 Attempt to convert a particular inst-list into an instance. | |
| 3295 This attempts to instantiate INST-LIST in the given DOMAIN | |
| 3296 \(as if INST-LIST existed in a specification in SPECIFIER), | |
| 3297 matching the specifications against MATCHSPEC. | |
| 3298 | |
| 3299 This function is analogous to `specifier-instance-from-inst-list' | |
| 3300 but allows for specification-matching as in `specifier-matching-instance'. | |
| 3301 See that function for a description of exactly how the matching process | |
| 3302 works. | |
| 3303 */ | |
| 3304 (specifier, matchspec, domain, inst_list, default_)) | |
| 3305 { | |
| 2953 | 3306 return specifier_matching_foo_from_inst_list (specifier, matchspec, |
| 3307 domain, inst_list, default_, | |
| 3308 0); | |
| 3309 } | |
| 3310 | |
| 3311 DEFUN ("specifier-matching-instantiator-from-inst-list", | |
| 3312 Fspecifier_matching_instantiator_from_inst_list, | |
| 3313 4, 5, 0, /* | |
| 3314 Attempt to convert an inst-list into an instance; return instantiator. | |
| 3315 This is identical to `specifier-matching-instance-from-inst-list' but returns | |
| 3316 the instantiator used to generate the instance, rather than the instance | |
| 3317 itself. | |
| 3318 */ | |
| 3319 (specifier, matchspec, domain, inst_list, default_)) | |
| 3320 { | |
| 3321 return specifier_matching_foo_from_inst_list (specifier, matchspec, | |
| 3322 domain, inst_list, default_, | |
| 3323 1); | |
| 428 | 3324 } |
| 3325 | |
| 3326 | |
| 3327 /************************************************************************/ | |
| 3328 /* Caching in the struct window or frame */ | |
| 3329 /************************************************************************/ | |
| 3330 | |
| 853 | 3331 /* Cause the current value of SPECIFIER in the domain of each frame and/or |
| 3332 window to be cached in the struct frame at STRUCT_FRAME_OFFSET and the | |
| 3333 struct window at STRUCT_WINDOW_OFFSET. When the value changes in a | |
| 3334 particular window, VALUE_CHANGED_IN_WINDOW is called. When the value | |
| 3335 changes in a particular frame, VALUE_CHANGED_IN_FRAME is called. | |
| 3336 | |
| 3337 Either STRUCT_WINDOW_OFFSET or STRUCT_FRAME_OFFSET can be 0 to indicate | |
| 3338 no caching in that sort of object. However, if they're not 0, you | |
| 3339 must supply a corresponding value-changed function. (This is the case | |
| 3340 so that you are forced to consider the ramifications of a value change. | |
| 3341 You nearly always need to do something, e.g. set a dirty flag.) | |
| 3342 | |
| 3343 If you create a built-in specifier, you should do the following: | |
| 3344 | |
| 3345 - Make sure the file you create the specifier in has a | |
| 3659 | 3346 specifier_vars_of_foo() function. If not, create it, declare it in |
| 3347 symsinit.h, and make sure it's called in the appropriate place in | |
| 3348 emacs.c. | |
| 853 | 3349 - In specifier_vars_of_foo(), do a DEFVAR_SPECIFIER(), followed by |
| 3659 | 3350 initializing the specifier using Fmake_specifier(), followed by |
| 3351 set_specifier_fallback(), followed (optionally) by | |
| 3352 set_specifier_caching(). | |
| 853 | 3353 - If you used set_specifier_caching(), make sure to create the |
| 3659 | 3354 appropriate value-changed functions. Also make sure to add the |
| 3355 appropriate slots where the values are cached to frameslots.h and | |
| 3356 winslots.h. | |
| 853 | 3357 |
| 3358 Do a grep for menubar_visible_p for an example. | |
| 3359 */ | |
| 428 | 3360 |
| 3361 /* #### It would be nice if the specifier caching automatically knew | |
| 3362 about specifier fallbacks, so we didn't have to do it ourselves. */ | |
| 3363 | |
| 3364 void | |
| 3365 set_specifier_caching (Lisp_Object specifier, int struct_window_offset, | |
| 3366 void (*value_changed_in_window) | |
| 3367 (Lisp_Object specifier, struct window *w, | |
| 3368 Lisp_Object oldval), | |
| 3369 int struct_frame_offset, | |
| 3370 void (*value_changed_in_frame) | |
| 3371 (Lisp_Object specifier, struct frame *f, | |
| 444 | 3372 Lisp_Object oldval), |
| 3373 int always_recompute) | |
| 428 | 3374 { |
| 440 | 3375 Lisp_Specifier *sp = XSPECIFIER (specifier); |
| 428 | 3376 assert (!GHOST_SPECIFIER_P (sp)); |
| 3377 | |
| 3378 if (!sp->caching) | |
| 3092 | 3379 #ifdef NEW_GC |
|
5127
a9c41067dd88
more cleanups, terminology clarification, lots of doc work
Ben Wing <ben@xemacs.org>
parents:
5125
diff
changeset
|
3380 sp->caching = XSPECIFIER_CACHING (ALLOC_NORMAL_LISP_OBJECT (specifier_caching)); |
| 3092 | 3381 #else /* not NEW_GC */ |
| 3659 | 3382 sp->caching = xnew_and_zero (struct specifier_caching); |
| 3092 | 3383 #endif /* not NEW_GC */ |
| 428 | 3384 sp->caching->offset_into_struct_window = struct_window_offset; |
| 3385 sp->caching->value_changed_in_window = value_changed_in_window; | |
| 3386 sp->caching->offset_into_struct_frame = struct_frame_offset; | |
| 3387 sp->caching->value_changed_in_frame = value_changed_in_frame; | |
| 853 | 3388 if (struct_window_offset) |
| 3389 assert (value_changed_in_window); | |
| 3390 if (struct_frame_offset) | |
| 3391 assert (value_changed_in_frame); | |
| 444 | 3392 sp->caching->always_recompute = always_recompute; |
| 428 | 3393 Vcached_specifiers = Fcons (specifier, Vcached_specifiers); |
| 3394 if (BODILY_SPECIFIER_P (sp)) | |
| 5198 | 3395 GHOST_SPECIFIER (sp)->caching = sp->caching; |
| 428 | 3396 recompute_cached_specifier_everywhere (specifier); |
| 3397 } | |
| 3398 | |
| 3399 static void | |
| 3400 recompute_one_cached_specifier_in_window (Lisp_Object specifier, | |
| 3401 struct window *w) | |
| 3402 { | |
| 3403 Lisp_Object window; | |
| 444 | 3404 Lisp_Object newval, *location, oldval; |
| 428 | 3405 |
| 3406 assert (!GHOST_SPECIFIER_P (XSPECIFIER (specifier))); | |
| 3407 | |
| 793 | 3408 window = wrap_window (w); |
| 428 | 3409 |
| 3410 newval = specifier_instance (specifier, Qunbound, window, ERROR_ME_WARN, | |
| 3411 0, 0, Qzero); | |
| 3412 /* If newval ended up Qunbound, then the calling functions | |
| 3413 better be able to deal. If not, set a default so this | |
| 3414 never happens or correct it in the value_changed_in_window | |
| 3415 method. */ | |
| 3416 location = (Lisp_Object *) | |
| 3417 ((char *) w + XSPECIFIER (specifier)->caching->offset_into_struct_window); | |
| 442 | 3418 /* #### What's the point of this check, other than to optimize image |
| 3419 instance instantiation? Unless you specify a caching instantiate | |
| 3420 method the instantiation that specifier_instance will do will | |
| 3421 always create a new copy. Thus EQ will always fail. Unfortunately | |
| 3422 calling equal is no good either as this doesn't take into account | |
| 3423 things attached to the specifier - for instance strings on | |
| 3424 extents. --andyp */ | |
| 444 | 3425 if (!EQ (newval, *location) || XSPECIFIER (specifier)->caching->always_recompute) |
| 428 | 3426 { |
| 444 | 3427 oldval = *location; |
| 428 | 3428 *location = newval; |
| 3429 (XSPECIFIER (specifier)->caching->value_changed_in_window) | |
| 3430 (specifier, w, oldval); | |
| 3431 } | |
| 3432 } | |
| 3433 | |
| 3434 static void | |
| 3435 recompute_one_cached_specifier_in_frame (Lisp_Object specifier, | |
| 3436 struct frame *f) | |
| 3437 { | |
| 3438 Lisp_Object frame; | |
| 444 | 3439 Lisp_Object newval, *location, oldval; |
| 428 | 3440 |
| 3441 assert (!GHOST_SPECIFIER_P (XSPECIFIER (specifier))); | |
| 3442 | |
| 793 | 3443 frame = wrap_frame (f); |
| 428 | 3444 |
| 3445 newval = specifier_instance (specifier, Qunbound, frame, ERROR_ME_WARN, | |
| 3446 0, 0, Qzero); | |
| 3447 /* If newval ended up Qunbound, then the calling functions | |
| 3448 better be able to deal. If not, set a default so this | |
| 3449 never happens or correct it in the value_changed_in_frame | |
| 3450 method. */ | |
| 3451 location = (Lisp_Object *) | |
| 3452 ((char *) f + XSPECIFIER (specifier)->caching->offset_into_struct_frame); | |
| 444 | 3453 if (!EQ (newval, *location) || XSPECIFIER (specifier)->caching->always_recompute) |
| 428 | 3454 { |
| 444 | 3455 oldval = *location; |
| 428 | 3456 *location = newval; |
| 3457 (XSPECIFIER (specifier)->caching->value_changed_in_frame) | |
| 3458 (specifier, f, oldval); | |
| 3459 } | |
| 3460 } | |
| 3461 | |
| 3462 void | |
| 3463 recompute_all_cached_specifiers_in_window (struct window *w) | |
| 3464 { | |
| 3465 Lisp_Object rest; | |
| 3466 | |
| 3467 LIST_LOOP (rest, Vcached_specifiers) | |
| 3468 { | |
| 3469 Lisp_Object specifier = XCAR (rest); | |
| 3470 if (XSPECIFIER (specifier)->caching->offset_into_struct_window) | |
| 3471 recompute_one_cached_specifier_in_window (specifier, w); | |
| 3472 } | |
| 3473 } | |
| 3474 | |
| 3475 void | |
| 3476 recompute_all_cached_specifiers_in_frame (struct frame *f) | |
| 3477 { | |
| 3478 Lisp_Object rest; | |
| 3479 | |
| 3480 LIST_LOOP (rest, Vcached_specifiers) | |
| 3481 { | |
| 3482 Lisp_Object specifier = XCAR (rest); | |
| 3483 if (XSPECIFIER (specifier)->caching->offset_into_struct_frame) | |
| 3484 recompute_one_cached_specifier_in_frame (specifier, f); | |
| 3485 } | |
| 3486 } | |
| 3487 | |
| 3488 static int | |
| 3489 recompute_cached_specifier_everywhere_mapfun (struct window *w, | |
| 3490 void *closure) | |
| 3491 { | |
| 3492 Lisp_Object specifier = Qnil; | |
| 3493 | |
| 5013 | 3494 specifier = GET_LISP_FROM_VOID (closure); |
| 428 | 3495 recompute_one_cached_specifier_in_window (specifier, w); |
| 3496 return 0; | |
| 3497 } | |
| 3498 | |
| 3499 static void | |
| 3500 recompute_cached_specifier_everywhere (Lisp_Object specifier) | |
| 3501 { | |
| 3502 Lisp_Object frmcons, devcons, concons; | |
| 3503 | |
| 3504 specifier = bodily_specifier (specifier); | |
| 3505 | |
| 3506 if (!XSPECIFIER (specifier)->caching) | |
| 3507 return; | |
| 3508 | |
| 3509 if (XSPECIFIER (specifier)->caching->offset_into_struct_window) | |
| 3510 { | |
| 3511 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons) | |
| 3512 map_windows (XFRAME (XCAR (frmcons)), | |
| 3513 recompute_cached_specifier_everywhere_mapfun, | |
| 5013 | 3514 STORE_LISP_IN_VOID (specifier)); |
| 428 | 3515 } |
| 3516 | |
| 3517 if (XSPECIFIER (specifier)->caching->offset_into_struct_frame) | |
| 3518 { | |
| 3519 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons) | |
| 3520 recompute_one_cached_specifier_in_frame (specifier, | |
| 3521 XFRAME (XCAR (frmcons))); | |
| 3522 } | |
| 3523 } | |
| 3524 | |
| 3525 DEFUN ("set-specifier-dirty-flag", Fset_specifier_dirty_flag, 1, 1, 0, /* | |
| 3526 Force recomputation of any caches associated with SPECIFIER. | |
| 3527 Note that this automatically happens whenever you change a specification | |
| 3528 in SPECIFIER; you do not have to call this function then. | |
| 3529 One example of where this function is useful is when you have a | |
| 3530 toolbar button whose `active-p' field is an expression to be | |
| 3531 evaluated. Calling `set-specifier-dirty-flag' on the | |
| 3532 toolbar specifier will force the `active-p' fields to be | |
| 3533 recomputed. | |
| 3534 */ | |
| 3535 (specifier)) | |
| 3536 { | |
| 3537 CHECK_SPECIFIER (specifier); | |
| 3538 recompute_cached_specifier_everywhere (specifier); | |
| 3539 return Qnil; | |
| 3540 } | |
| 3541 | |
| 3542 | |
| 3543 /************************************************************************/ | |
| 3544 /* Generic specifier type */ | |
| 3545 /************************************************************************/ | |
| 3546 | |
| 3547 DEFINE_SPECIFIER_TYPE (generic); | |
| 3548 | |
| 3549 #if 0 | |
| 3550 | |
| 3551 /* This is the string that used to be in `generic-specifier-p'. | |
| 3552 The idea is good, but it doesn't quite work in the form it's | |
| 3553 in. (One major problem is that validating an instantiator | |
| 3554 is supposed to require only that the specifier type is passed, | |
| 3555 while with this approach the actual specifier is needed.) | |
| 3556 | |
| 3557 What really needs to be done is to write a function | |
| 3558 `make-specifier-type' that creates new specifier types. | |
| 442 | 3559 |
| 3560 #### [I'll look into this for 19.14.] Well, sometime. (Currently | |
| 3561 May 2000, 21.2 is in development. 19.14 was released in June 1996.) */ | |
| 428 | 3562 |
| 3563 "A generic specifier is a generalized kind of specifier with user-defined\n" | |
| 3564 "semantics. The instantiator can be any kind of Lisp object, and the\n" | |
| 3565 "instance computed from it is likewise any kind of Lisp object. The\n" | |
| 3566 "SPECIFIER-DATA should be an alist of methods governing how the specifier\n" | |
| 3567 "works. All methods are optional, and reasonable default methods will be\n" | |
| 2953 | 3568 "provided. Currently there are two defined methods: `instantiate' and\n" |
| 3569 "`validate'.\n" | |
| 428 | 3570 "\n" |
| 2953 | 3571 "`instantiate' specifies how to do the instantiation; if omitted, the\n" |
| 428 | 3572 "instantiator itself is simply returned as the instance. The method\n" |
| 3573 "should be a function that accepts three parameters (a specifier, the\n" | |
| 3574 "instantiator that matched the domain being instantiated over, and that\n" | |
| 3575 "domain), and should return a one-element list containing the instance,\n" | |
| 3576 "or nil if no instance exists. Note that the domain passed to this function\n" | |
| 3577 "is the domain being instantiated over, which may not be the same as the\n" | |
| 3578 "locale contained in the specification corresponding to the instantiator\n" | |
| 3579 "(for example, the domain being instantiated over could be a window, but\n" | |
| 3580 "the locale corresponding to the passed instantiator could be the window's\n" | |
| 3581 "buffer or frame).\n" | |
| 3582 "\n" | |
| 2953 | 3583 "`validate' specifies whether a given instantiator is valid; if omitted,\n" |
| 428 | 3584 "all instantiators are considered valid. It should be a function of\n" |
| 3585 "two arguments: an instantiator and a flag CAN-SIGNAL-ERROR. If this\n" | |
| 3586 "flag is false, the function must simply return t or nil indicating\n" | |
| 3587 "whether the instantiator is valid. If this flag is true, the function\n" | |
| 3588 "is free to signal an error if it encounters an invalid instantiator\n" | |
| 3589 "(this can be useful for issuing a specific error about exactly why the\n" | |
| 3590 "instantiator is valid). It can also return nil to indicate an invalid\n" | |
| 3591 "instantiator; in this case, a general error will be signalled." | |
| 3592 | |
| 3593 #endif /* 0 */ | |
| 3594 | |
| 3595 DEFUN ("generic-specifier-p", Fgeneric_specifier_p, 1, 1, 0, /* | |
| 3596 Return non-nil if OBJECT is a generic specifier. | |
| 3597 | |
| 442 | 3598 See `make-generic-specifier' for a description of possible generic |
| 3599 instantiators. | |
| 428 | 3600 */ |
| 3601 (object)) | |
| 3602 { | |
| 3603 return GENERIC_SPECIFIERP (object) ? Qt : Qnil; | |
| 3604 } | |
| 3605 | |
| 3606 | |
| 3607 /************************************************************************/ | |
| 3608 /* Integer specifier type */ | |
| 3609 /************************************************************************/ | |
| 3610 | |
| 3611 DEFINE_SPECIFIER_TYPE (integer); | |
| 3612 | |
| 3613 static void | |
| 3614 integer_validate (Lisp_Object instantiator) | |
| 3615 { | |
| 3616 CHECK_INT (instantiator); | |
| 3617 } | |
| 3618 | |
| 3619 DEFUN ("integer-specifier-p", Finteger_specifier_p, 1, 1, 0, /* | |
| 3620 Return non-nil if OBJECT is an integer specifier. | |
| 442 | 3621 |
| 3622 See `make-integer-specifier' for a description of possible integer | |
| 3623 instantiators. | |
| 428 | 3624 */ |
| 3625 (object)) | |
| 3626 { | |
| 3627 return INTEGER_SPECIFIERP (object) ? Qt : Qnil; | |
| 3628 } | |
| 3629 | |
| 3630 /************************************************************************/ | |
| 3631 /* Non-negative-integer specifier type */ | |
| 3632 /************************************************************************/ | |
| 3633 | |
| 3634 DEFINE_SPECIFIER_TYPE (natnum); | |
| 3635 | |
| 3636 static void | |
| 3637 natnum_validate (Lisp_Object instantiator) | |
| 3638 { | |
| 3639 CHECK_NATNUM (instantiator); | |
| 3640 } | |
| 3641 | |
| 3642 DEFUN ("natnum-specifier-p", Fnatnum_specifier_p, 1, 1, 0, /* | |
| 3643 Return non-nil if OBJECT is a natnum (non-negative-integer) specifier. | |
| 442 | 3644 |
| 3645 See `make-natnum-specifier' for a description of possible natnum | |
| 3646 instantiators. | |
| 428 | 3647 */ |
| 3648 (object)) | |
| 3649 { | |
| 3650 return NATNUM_SPECIFIERP (object) ? Qt : Qnil; | |
| 3651 } | |
| 3652 | |
| 3653 /************************************************************************/ | |
| 3654 /* Boolean specifier type */ | |
| 3655 /************************************************************************/ | |
| 3656 | |
| 3657 DEFINE_SPECIFIER_TYPE (boolean); | |
| 3658 | |
| 3659 static void | |
| 3660 boolean_validate (Lisp_Object instantiator) | |
| 3661 { | |
| 3662 if (!EQ (instantiator, Qt) && !EQ (instantiator, Qnil)) | |
| 563 | 3663 invalid_constant ("Must be t or nil", instantiator); |
| 428 | 3664 } |
| 3665 | |
| 3666 DEFUN ("boolean-specifier-p", Fboolean_specifier_p, 1, 1, 0, /* | |
| 3667 Return non-nil if OBJECT is a boolean specifier. | |
| 442 | 3668 |
| 3669 See `make-boolean-specifier' for a description of possible boolean | |
| 3670 instantiators. | |
| 428 | 3671 */ |
| 3672 (object)) | |
| 3673 { | |
| 3674 return BOOLEAN_SPECIFIERP (object) ? Qt : Qnil; | |
| 3675 } | |
| 3676 | |
| 3677 /************************************************************************/ | |
| 3678 /* Display table specifier type */ | |
| 3679 /************************************************************************/ | |
| 3680 | |
| 3681 DEFINE_SPECIFIER_TYPE (display_table); | |
| 3682 | |
| 3659 | 3683 #define VALID_SINGLE_DISPTABLE_INSTANTIATOR_P(instantiator) \ |
| 3684 (VECTORP (instantiator) \ | |
| 3685 || (CHAR_TABLEP (instantiator) \ | |
| 3686 && (XCHAR_TABLE_TYPE (instantiator) == CHAR_TABLE_TYPE_CHAR \ | |
| 442 | 3687 || XCHAR_TABLE_TYPE (instantiator) == CHAR_TABLE_TYPE_GENERIC)) \ |
| 428 | 3688 || RANGE_TABLEP (instantiator)) |
| 3689 | |
| 3690 static void | |
| 3691 display_table_validate (Lisp_Object instantiator) | |
| 3692 { | |
| 3693 if (NILP (instantiator)) | |
| 3694 /* OK */ | |
| 3695 ; | |
| 3696 else if (CONSP (instantiator)) | |
| 3697 { | |
| 2367 | 3698 EXTERNAL_LIST_LOOP_2 (car, instantiator) |
| 428 | 3699 { |
| 3700 if (!VALID_SINGLE_DISPTABLE_INSTANTIATOR_P (car)) | |
| 3701 goto lose; | |
| 3702 } | |
| 3703 } | |
| 3704 else | |
| 3705 { | |
| 3706 if (!VALID_SINGLE_DISPTABLE_INSTANTIATOR_P (instantiator)) | |
| 3707 { | |
| 3708 lose: | |
| 442 | 3709 dead_wrong_type_argument |
| 3710 (display_table_specifier_methods->predicate_symbol, | |
| 3659 | 3711 instantiator); |
| 428 | 3712 } |
| 3713 } | |
| 3714 } | |
| 3715 | |
| 3716 DEFUN ("display-table-specifier-p", Fdisplay_table_specifier_p, 1, 1, 0, /* | |
| 3717 Return non-nil if OBJECT is a display-table specifier. | |
| 442 | 3718 |
| 3719 See `current-display-table' for a description of possible display-table | |
| 3720 instantiators. | |
| 428 | 3721 */ |
| 3722 (object)) | |
| 3723 { | |
| 3724 return DISPLAYTABLE_SPECIFIERP (object) ? Qt : Qnil; | |
| 3725 } | |
| 3726 | |
|
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|
3727 |
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|
3728 |
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14fda1dbdb26
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|
3729 #ifdef MEMORY_USAGE_STATS |
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|
3730 |
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|
3731 struct specifier_stats |
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|
3732 { |
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|
3733 struct usage_stats u; |
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|
3734 /* Ancillary Lisp */ |
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|
3735 Bytecount global, device, frame, window, buffer, fallback; |
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|
3736 Bytecount magic_parent; |
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|
3737 }; |
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|
3738 |
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|
3739 static void |
|
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|
3740 specifier_memory_usage (Lisp_Object UNUSED (specifier), |
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|
3741 struct generic_usage_stats * UNUSED (gustats)) |
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|
3742 { |
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|
3743 #if 0 |
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3744 struct specifier_stats *stats = (struct specifier_stats *) gustats; |
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3745 Lisp_Specifier *spec = XSPECIFIER (specifier); |
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3746 |
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3747 /* #### FIXME -- sometimes it appears that the specs, or at least global |
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3748 specs, can have circularities in the tree structure. This makes |
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3749 everything much slower and in fact can result in a hang with 100% CPU. |
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3750 Need to investigate properly and figure out what's going on here, |
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3751 since the specs are copied when stored in and so supposedly, circular |
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|
3752 structures shouldn't exist. */ |
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3753 stats->global = tree_memory_usage (spec->global_specs, 1); |
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3754 stats->device = tree_memory_usage (spec->device_specs, 1); |
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3755 stats->frame = tree_memory_usage (spec->frame_specs, 1); |
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3756 stats->window = tree_memory_usage (spec->window_specs, 1); |
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|
3757 stats->buffer = tree_memory_usage (spec->buffer_specs, 1); |
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3758 stats->fallback = tree_memory_usage (spec->fallback, 1); |
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3759 if (SPECIFIERP (spec->magic_parent)) |
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3760 stats->magic_parent = lisp_object_memory_usage (spec->magic_parent); |
|
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3761 #endif |
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3762 } |
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3763 |
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|
3764 #endif /* MEMORY_USAGE_STATS */ |
| 428 | 3765 |
| 3766 /************************************************************************/ | |
| 3767 /* Initialization */ | |
| 3768 /************************************************************************/ | |
|
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3769 |
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3770 void |
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3771 specifier_objects_create (void) |
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3772 { |
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3773 #ifdef MEMORY_USAGE_STATS |
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3774 OBJECT_HAS_METHOD (specifier, memory_usage); |
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3775 #endif |
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3776 } |
| 428 | 3777 |
| 3778 void | |
| 3779 syms_of_specifier (void) | |
| 3780 { | |
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3781 INIT_LISP_OBJECT (specifier); |
| 3092 | 3782 #ifdef NEW_GC |
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3783 INIT_LISP_OBJECT (specifier_caching); |
| 3092 | 3784 #endif /* NEW_GC */ |
| 442 | 3785 |
| 3786 DEFSYMBOL (Qspecifierp); | |
| 3787 | |
| 3788 DEFSYMBOL (Qconsole_type); | |
| 3789 DEFSYMBOL (Qdevice_class); | |
| 3790 | |
| 3791 /* specifier types defined in general.c. */ | |
| 428 | 3792 |
| 3793 DEFSUBR (Fvalid_specifier_type_p); | |
| 3794 DEFSUBR (Fspecifier_type_list); | |
| 3795 DEFSUBR (Fmake_specifier); | |
| 3796 DEFSUBR (Fspecifierp); | |
| 3797 DEFSUBR (Fspecifier_type); | |
| 3798 | |
| 3799 DEFSUBR (Fvalid_specifier_locale_p); | |
| 3800 DEFSUBR (Fvalid_specifier_domain_p); | |
| 3801 DEFSUBR (Fvalid_specifier_locale_type_p); | |
| 3802 DEFSUBR (Fspecifier_locale_type_from_locale); | |
| 3803 | |
| 3804 DEFSUBR (Fvalid_specifier_tag_p); | |
| 3805 DEFSUBR (Fvalid_specifier_tag_set_p); | |
| 3806 DEFSUBR (Fcanonicalize_tag_set); | |
| 3807 DEFSUBR (Fdevice_matches_specifier_tag_set_p); | |
| 3808 DEFSUBR (Fdefine_specifier_tag); | |
| 3809 DEFSUBR (Fdevice_matching_specifier_tag_list); | |
| 3673 | 3810 |
| 428 | 3811 DEFSUBR (Fspecifier_tag_list); |
| 3659 | 3812 DEFSUBR (Fspecifier_tag_device_predicate); |
| 3813 DEFSUBR (Fspecifier_tag_charset_predicate); | |
| 428 | 3814 |
| 3815 DEFSUBR (Fcheck_valid_instantiator); | |
| 3816 DEFSUBR (Fvalid_instantiator_p); | |
| 3817 DEFSUBR (Fcheck_valid_inst_list); | |
| 3818 DEFSUBR (Fvalid_inst_list_p); | |
| 3819 DEFSUBR (Fcheck_valid_spec_list); | |
| 3820 DEFSUBR (Fvalid_spec_list_p); | |
| 3821 DEFSUBR (Fadd_spec_to_specifier); | |
| 3822 DEFSUBR (Fadd_spec_list_to_specifier); | |
| 3823 DEFSUBR (Fspecifier_spec_list); | |
| 3824 DEFSUBR (Fspecifier_specs); | |
| 3825 DEFSUBR (Fremove_specifier); | |
| 3826 DEFSUBR (Fcopy_specifier); | |
| 3827 | |
| 3828 DEFSUBR (Fcheck_valid_specifier_matchspec); | |
| 3829 DEFSUBR (Fvalid_specifier_matchspec_p); | |
| 3830 DEFSUBR (Fspecifier_fallback); | |
| 3831 DEFSUBR (Fspecifier_instance); | |
| 2953 | 3832 DEFSUBR (Fspecifier_instantiator); |
| 428 | 3833 DEFSUBR (Fspecifier_matching_instance); |
| 2953 | 3834 DEFSUBR (Fspecifier_matching_instantiator); |
| 428 | 3835 DEFSUBR (Fspecifier_instance_from_inst_list); |
| 2953 | 3836 DEFSUBR (Fspecifier_instantiator_from_inst_list); |
| 428 | 3837 DEFSUBR (Fspecifier_matching_instance_from_inst_list); |
| 2953 | 3838 DEFSUBR (Fspecifier_matching_instantiator_from_inst_list); |
| 428 | 3839 DEFSUBR (Fset_specifier_dirty_flag); |
| 3840 | |
| 3841 DEFSUBR (Fgeneric_specifier_p); | |
| 3842 DEFSUBR (Finteger_specifier_p); | |
| 3843 DEFSUBR (Fnatnum_specifier_p); | |
| 3844 DEFSUBR (Fboolean_specifier_p); | |
| 3845 DEFSUBR (Fdisplay_table_specifier_p); | |
| 3846 | |
| 3847 /* Symbols pertaining to specifier creation. Specifiers are created | |
| 3848 in the syms_of() functions. */ | |
| 3849 | |
| 3850 /* locales are defined in general.c. */ | |
| 3851 | |
| 442 | 3852 /* some how-to-add flags in general.c. */ |
| 3853 DEFSYMBOL (Qremove_tag_set_prepend); | |
| 3854 DEFSYMBOL (Qremove_tag_set_append); | |
| 3855 DEFSYMBOL (Qremove_locale); | |
| 3856 DEFSYMBOL (Qremove_locale_type); | |
| 428 | 3857 } |
| 3858 | |
| 3859 void | |
| 3860 specifier_type_create (void) | |
| 3861 { | |
| 3862 the_specifier_type_entry_dynarr = Dynarr_new (specifier_type_entry); | |
| 2367 | 3863 dump_add_root_block_ptr (&the_specifier_type_entry_dynarr, &sted_description); |
| 428 | 3864 |
| 3865 Vspecifier_type_list = Qnil; | |
| 3866 staticpro (&Vspecifier_type_list); | |
| 3867 | |
| 3868 INITIALIZE_SPECIFIER_TYPE (generic, "generic", "generic-specifier-p"); | |
| 3869 | |
| 3870 INITIALIZE_SPECIFIER_TYPE (integer, "integer", "integer-specifier-p"); | |
| 3871 | |
| 3872 SPECIFIER_HAS_METHOD (integer, validate); | |
| 3873 | |
| 3874 INITIALIZE_SPECIFIER_TYPE (natnum, "natnum", "natnum-specifier-p"); | |
| 3875 | |
| 3876 SPECIFIER_HAS_METHOD (natnum, validate); | |
| 3877 | |
| 3878 INITIALIZE_SPECIFIER_TYPE (boolean, "boolean", "boolean-specifier-p"); | |
| 3879 | |
| 3880 SPECIFIER_HAS_METHOD (boolean, validate); | |
| 3881 | |
| 442 | 3882 INITIALIZE_SPECIFIER_TYPE (display_table, "display-table", |
| 3883 "display-table-p"); | |
| 428 | 3884 |
| 3885 SPECIFIER_HAS_METHOD (display_table, validate); | |
| 3886 } | |
| 3887 | |
| 3888 void | |
| 3889 reinit_specifier_type_create (void) | |
| 3890 { | |
| 3891 REINITIALIZE_SPECIFIER_TYPE (generic); | |
| 3892 REINITIALIZE_SPECIFIER_TYPE (integer); | |
| 3893 REINITIALIZE_SPECIFIER_TYPE (natnum); | |
| 3894 REINITIALIZE_SPECIFIER_TYPE (boolean); | |
| 3895 REINITIALIZE_SPECIFIER_TYPE (display_table); | |
| 3896 } | |
| 3897 | |
| 3898 void | |
| 3899 vars_of_specifier (void) | |
| 3900 { | |
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3901 #ifdef MEMORY_USAGE_STATS |
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3902 OBJECT_HAS_PROPERTY (specifier, memusage_stats_list, |
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3903 listu (Qt, Qglobal, Qdevice, Qframe, Qwindow, Qbuffer, |
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3904 Qfallback, intern ("magic-parent"), |
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3905 Qunbound)); |
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3906 #endif /* MEMORY_USAGE_STATS */ |
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3907 |
| 428 | 3908 Vcached_specifiers = Qnil; |
| 3909 staticpro (&Vcached_specifiers); | |
| 3910 | |
| 3911 /* Do NOT mark through this, or specifiers will never be GC'd. | |
| 3912 This is the same deal as for weak hash tables. */ | |
| 3913 Vall_specifiers = Qnil; | |
| 452 | 3914 dump_add_weak_object_chain (&Vall_specifiers); |
| 428 | 3915 |
| 3916 Vuser_defined_tags = Qnil; | |
| 3917 staticpro (&Vuser_defined_tags); | |
| 3918 | |
| 3919 Vunlock_ghost_specifiers = Qnil; | |
| 3920 staticpro (&Vunlock_ghost_specifiers); | |
| 3659 | 3921 |
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3922 Vcharset_tag_lists = |
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3923 make_lisp_hash_table (50, HASH_TABLE_NON_WEAK, Qeq); |
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3924 staticpro (&Vcharset_tag_lists); |
| 428 | 3925 } |