Mercurial > hg > xemacs-beta
annotate src/specifier.c @ 5117:3742ea8250b5 ben-lisp-object ben-lisp-object-final-ws-year-2005
Checking in final CVS version of workspace 'ben-lisp-object'
| author | Ben Wing <ben@xemacs.org> |
|---|---|
| date | Sat, 26 Dec 2009 00:20:27 -0600 |
| parents | 1e7cc382eb16 |
| children | e0db3c197671 |
| rev | line source |
|---|---|
| 428 | 1 /* Specifier implementation |
| 2 Copyright (C) 1994, 1995 Board of Trustees, University of Illinois. | |
| 2953 | 3 Copyright (C) 1995, 1996, 2002, 2005 Ben Wing. |
| 428 | 4 Copyright (C) 1995 Sun Microsystems, Inc. |
| 5 | |
| 6 This file is part of XEmacs. | |
| 7 | |
| 8 XEmacs is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published by the | |
| 10 Free Software Foundation; either version 2, or (at your option) any | |
| 11 later version. | |
| 12 | |
| 13 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 19 along with XEmacs; see the file COPYING. If not, write to | |
| 20 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 21 Boston, MA 02111-1307, USA. */ | |
| 22 | |
| 23 /* Synched up with: Not in FSF. */ | |
| 24 | |
| 25 /* Design by Ben Wing; | |
| 2953 | 26 Written by Ben Wing based on prototype for 19.12 by Chuck Thompson. |
| 27 Magic specifiers by Kirill Katsnelson. | |
| 428 | 28 */ |
| 29 | |
| 30 #include <config.h> | |
| 31 #include "lisp.h" | |
| 32 | |
| 33 #include "buffer.h" | |
| 800 | 34 #include "chartab.h" |
| 872 | 35 #include "device-impl.h" |
| 428 | 36 #include "frame.h" |
| 800 | 37 #include "glyphs.h" |
| 428 | 38 #include "opaque.h" |
| 800 | 39 #include "rangetab.h" |
| 428 | 40 #include "specifier.h" |
| 41 #include "window.h" | |
| 42 | |
| 43 Lisp_Object Qspecifierp; | |
| 442 | 44 Lisp_Object Qremove_tag_set_prepend, Qremove_tag_set_append; |
| 45 Lisp_Object Qremove_locale, Qremove_locale_type; | |
| 428 | 46 |
| 47 Lisp_Object Qconsole_type, Qdevice_class; | |
| 48 | |
| 49 static Lisp_Object Vuser_defined_tags; | |
| 50 | |
| 51 typedef struct specifier_type_entry specifier_type_entry; | |
| 52 struct specifier_type_entry | |
| 53 { | |
| 54 Lisp_Object symbol; | |
| 55 struct specifier_methods *meths; | |
| 56 }; | |
| 57 | |
| 58 typedef struct | |
| 59 { | |
| 60 Dynarr_declare (specifier_type_entry); | |
| 61 } specifier_type_entry_dynarr; | |
| 62 | |
| 63 static specifier_type_entry_dynarr *the_specifier_type_entry_dynarr; | |
| 64 | |
| 1204 | 65 static const struct memory_description ste_description_1[] = { |
| 440 | 66 { XD_LISP_OBJECT, offsetof (specifier_type_entry, symbol) }, |
| 2367 | 67 { XD_BLOCK_PTR, offsetof (specifier_type_entry, meths), 1, |
| 2551 | 68 { &specifier_methods_description } }, |
| 428 | 69 { XD_END } |
| 70 }; | |
| 71 | |
| 1204 | 72 static const struct sized_memory_description ste_description = { |
| 440 | 73 sizeof (specifier_type_entry), |
| 428 | 74 ste_description_1 |
| 75 }; | |
| 76 | |
| 1204 | 77 static const struct memory_description sted_description_1[] = { |
| 440 | 78 XD_DYNARR_DESC (specifier_type_entry_dynarr, &ste_description), |
| 428 | 79 { XD_END } |
| 80 }; | |
| 81 | |
| 1204 | 82 static const struct sized_memory_description sted_description = { |
| 440 | 83 sizeof (specifier_type_entry_dynarr), |
| 428 | 84 sted_description_1 |
| 85 }; | |
| 86 | |
| 87 static Lisp_Object Vspecifier_type_list; | |
| 88 | |
| 89 static Lisp_Object Vcached_specifiers; | |
| 90 /* Do NOT mark through this, or specifiers will never be GC'd. */ | |
| 91 static Lisp_Object Vall_specifiers; | |
| 92 | |
| 93 static Lisp_Object Vunlock_ghost_specifiers; | |
| 94 | |
| 95 /* #### The purpose of this is to check for inheritance loops | |
| 96 in specifiers that can inherit from other specifiers, but it's | |
| 97 not yet implemented. | |
| 98 | |
| 99 #### Look into this for 19.14. */ | |
| 100 /* static Lisp_Object_dynarr current_specifiers; */ | |
| 101 | |
| 102 static void recompute_cached_specifier_everywhere (Lisp_Object specifier); | |
| 103 | |
| 104 EXFUN (Fspecifier_specs, 4); | |
| 105 EXFUN (Fremove_specifier, 4); | |
| 106 | |
| 107 | |
| 108 /************************************************************************/ | |
| 109 /* Specifier object methods */ | |
| 110 /************************************************************************/ | |
| 111 | |
| 112 /* Remove dead objects from the specified assoc list. */ | |
| 113 | |
| 114 static Lisp_Object | |
| 115 cleanup_assoc_list (Lisp_Object list) | |
| 116 { | |
| 117 Lisp_Object loop, prev, retval; | |
| 118 | |
| 119 loop = retval = list; | |
| 120 prev = Qnil; | |
| 121 | |
| 122 while (!NILP (loop)) | |
| 123 { | |
| 124 Lisp_Object entry = XCAR (loop); | |
| 125 Lisp_Object key = XCAR (entry); | |
| 126 | |
| 127 /* remember, dead windows can become alive again. */ | |
| 128 if (!WINDOWP (key) && object_dead_p (key)) | |
| 129 { | |
| 130 if (NILP (prev)) | |
| 131 { | |
| 132 /* Removing the head. */ | |
| 133 retval = XCDR (retval); | |
| 134 } | |
| 135 else | |
| 136 { | |
| 137 Fsetcdr (prev, XCDR (loop)); | |
| 138 } | |
| 139 } | |
| 140 else | |
| 141 prev = loop; | |
| 142 | |
| 143 loop = XCDR (loop); | |
| 144 } | |
| 145 | |
| 146 return retval; | |
| 147 } | |
| 148 | |
| 149 /* Remove dead objects from the various lists so that they | |
| 150 don't keep getting marked as long as this specifier exists and | |
| 151 therefore wasting memory. */ | |
| 152 | |
| 153 void | |
| 154 cleanup_specifiers (void) | |
| 155 { | |
| 156 Lisp_Object rest; | |
| 157 | |
| 158 for (rest = Vall_specifiers; | |
| 159 !NILP (rest); | |
| 160 rest = XSPECIFIER (rest)->next_specifier) | |
| 161 { | |
| 440 | 162 Lisp_Specifier *sp = XSPECIFIER (rest); |
| 428 | 163 /* This effectively changes the specifier specs. |
| 164 However, there's no need to call | |
| 165 recompute_cached_specifier_everywhere() or the | |
| 166 after-change methods because the only specs we | |
| 167 are removing are for dead objects, and they can | |
| 168 never have any effect on the specifier values: | |
| 169 specifiers can only be instantiated over live | |
| 170 objects, and you can't derive a dead object | |
| 171 from a live one. */ | |
| 172 sp->device_specs = cleanup_assoc_list (sp->device_specs); | |
| 173 sp->frame_specs = cleanup_assoc_list (sp->frame_specs); | |
| 174 sp->buffer_specs = cleanup_assoc_list (sp->buffer_specs); | |
| 175 /* windows are handled specially because dead windows | |
| 176 can be resurrected */ | |
| 177 } | |
| 178 } | |
| 179 | |
| 180 void | |
| 181 kill_specifier_buffer_locals (Lisp_Object buffer) | |
| 182 { | |
| 183 Lisp_Object rest; | |
| 184 | |
| 185 for (rest = Vall_specifiers; | |
| 186 !NILP (rest); | |
| 187 rest = XSPECIFIER (rest)->next_specifier) | |
| 188 { | |
| 440 | 189 Lisp_Specifier *sp = XSPECIFIER (rest); |
| 428 | 190 |
| 191 /* Make sure we're actually going to be changing something. | |
| 192 Fremove_specifier() always calls | |
| 193 recompute_cached_specifier_everywhere() (#### but should | |
| 194 be smarter about this). */ | |
| 195 if (!NILP (assq_no_quit (buffer, sp->buffer_specs))) | |
| 196 Fremove_specifier (rest, buffer, Qnil, Qnil); | |
| 197 } | |
| 198 } | |
| 199 | |
| 200 static Lisp_Object | |
| 201 mark_specifier (Lisp_Object obj) | |
| 202 { | |
| 440 | 203 Lisp_Specifier *specifier = XSPECIFIER (obj); |
| 428 | 204 |
| 205 mark_object (specifier->global_specs); | |
| 206 mark_object (specifier->device_specs); | |
| 207 mark_object (specifier->frame_specs); | |
| 208 mark_object (specifier->window_specs); | |
| 209 mark_object (specifier->buffer_specs); | |
| 210 mark_object (specifier->magic_parent); | |
| 211 mark_object (specifier->fallback); | |
| 212 if (!GHOST_SPECIFIER_P (XSPECIFIER (obj))) | |
| 213 MAYBE_SPECMETH (specifier, mark, (obj)); | |
| 214 return Qnil; | |
| 215 } | |
| 216 | |
| 217 /* The idea here is that the specifier specs point to locales | |
| 218 (windows, buffers, frames, and devices), and we want to make sure | |
| 219 that the specs disappear automatically when the associated locale | |
| 220 is no longer in use. For all but windows, "no longer in use" | |
| 221 corresponds exactly to when the object is deleted (non-deleted | |
| 222 objects are always held permanently in special lists, and deleted | |
| 223 objects are never on these lists and never reusable). To handle | |
| 224 this, we just have cleanup_specifiers() called periodically | |
| 225 (at the beginning of garbage collection); it removes all dead | |
| 226 objects. | |
| 227 | |
| 228 For windows, however, it's trickier because dead objects can be | |
| 229 converted to live ones again if the dead object is in a window | |
| 230 configuration. Therefore, for windows, "no longer in use" | |
| 231 corresponds to when the window object is garbage-collected. | |
| 232 We now use weak lists for this purpose. | |
| 233 | |
| 234 */ | |
| 235 | |
| 236 void | |
| 237 prune_specifiers (void) | |
| 238 { | |
| 239 Lisp_Object rest, prev = Qnil; | |
| 240 | |
| 241 for (rest = Vall_specifiers; | |
| 242 !NILP (rest); | |
| 243 rest = XSPECIFIER (rest)->next_specifier) | |
| 244 { | |
| 245 if (! marked_p (rest)) | |
| 246 { | |
| 440 | 247 Lisp_Specifier* sp = XSPECIFIER (rest); |
| 428 | 248 /* A bit of assertion that we're removing both parts of the |
| 249 magic one altogether */ | |
| 250 assert (!MAGIC_SPECIFIER_P(sp) | |
| 251 || (BODILY_SPECIFIER_P(sp) && marked_p (sp->fallback)) | |
| 252 || (GHOST_SPECIFIER_P(sp) && marked_p (sp->magic_parent))); | |
| 253 /* This specifier is garbage. Remove it from the list. */ | |
| 254 if (NILP (prev)) | |
| 255 Vall_specifiers = sp->next_specifier; | |
| 256 else | |
| 257 XSPECIFIER (prev)->next_specifier = sp->next_specifier; | |
| 258 } | |
| 259 else | |
| 260 prev = rest; | |
| 261 } | |
| 262 } | |
| 263 | |
| 264 static void | |
| 2286 | 265 print_specifier (Lisp_Object obj, Lisp_Object printcharfun, |
| 266 int UNUSED (escapeflag)) | |
| 428 | 267 { |
| 440 | 268 Lisp_Specifier *sp = XSPECIFIER (obj); |
| 428 | 269 int count = specpdl_depth (); |
| 270 Lisp_Object the_specs; | |
| 271 | |
| 272 if (print_readably) | |
| 563 | 273 printing_unreadable_object ("#<%s-specifier 0x%x>", |
| 274 sp->methods->name, sp->header.uid); | |
| 428 | 275 |
| 800 | 276 write_fmt_string (printcharfun, "#<%s-specifier global=", sp->methods->name); |
| 872 | 277 #if 0 |
| 278 /* #### Not obvious this is useful, and overrides user settings; if we | |
| 279 resurrect this, create variables like `print-specifier-length' so it | |
| 280 can be controlled. */ | |
| 428 | 281 specbind (Qprint_string_length, make_int (100)); |
| 282 specbind (Qprint_length, make_int (5)); | |
| 872 | 283 #endif |
| 428 | 284 the_specs = Fspecifier_specs (obj, Qglobal, Qnil, Qnil); |
| 285 if (NILP (the_specs)) | |
| 286 /* there are no global specs */ | |
| 826 | 287 write_c_string (printcharfun, "<unspecified>"); |
| 428 | 288 else |
| 289 print_internal (the_specs, printcharfun, 1); | |
| 290 if (!NILP (sp->fallback)) | |
| 291 { | |
| 800 | 292 write_fmt_string_lisp (printcharfun, " fallback=%S", 1, sp->fallback); |
| 428 | 293 } |
| 771 | 294 unbind_to (count); |
| 800 | 295 write_fmt_string (printcharfun, " 0x%x>", sp->header.uid); |
| 428 | 296 } |
| 297 | |
| 298 static void | |
| 299 finalize_specifier (void *header, int for_disksave) | |
| 300 { | |
| 440 | 301 Lisp_Specifier *sp = (Lisp_Specifier *) header; |
| 428 | 302 /* don't be snafued by the disksave finalization. */ |
| 303 if (!for_disksave && !GHOST_SPECIFIER_P(sp) && sp->caching) | |
| 304 { | |
| 1726 | 305 xfree (sp->caching, struct specifier_caching *); |
| 428 | 306 sp->caching = 0; |
| 307 } | |
| 308 } | |
| 309 | |
| 310 static int | |
| 311 specifier_equal (Lisp_Object obj1, Lisp_Object obj2, int depth) | |
| 312 { | |
| 440 | 313 Lisp_Specifier *s1 = XSPECIFIER (obj1); |
| 314 Lisp_Specifier *s2 = XSPECIFIER (obj2); | |
| 428 | 315 int retval; |
| 316 Lisp_Object old_inhibit_quit = Vinhibit_quit; | |
| 317 | |
| 318 /* This function can be called from within redisplay. | |
| 319 internal_equal can trigger a quit. That leads to Bad Things. */ | |
| 320 Vinhibit_quit = Qt; | |
| 321 | |
| 322 depth++; | |
| 323 retval = | |
| 324 (s1->methods == s2->methods && | |
| 325 internal_equal (s1->global_specs, s2->global_specs, depth) && | |
| 326 internal_equal (s1->device_specs, s2->device_specs, depth) && | |
| 327 internal_equal (s1->frame_specs, s2->frame_specs, depth) && | |
| 328 internal_equal (s1->window_specs, s2->window_specs, depth) && | |
| 329 internal_equal (s1->buffer_specs, s2->buffer_specs, depth) && | |
| 330 internal_equal (s1->fallback, s2->fallback, depth)); | |
| 331 | |
| 332 if (retval && HAS_SPECMETH_P (s1, equal)) | |
| 333 retval = SPECMETH (s1, equal, (obj1, obj2, depth - 1)); | |
| 334 | |
| 335 Vinhibit_quit = old_inhibit_quit; | |
| 336 return retval; | |
| 337 } | |
| 338 | |
| 2515 | 339 static Hashcode |
| 428 | 340 specifier_hash (Lisp_Object obj, int depth) |
| 341 { | |
| 440 | 342 Lisp_Specifier *s = XSPECIFIER (obj); |
| 428 | 343 |
| 344 /* specifier hashing is a bit problematic because there are so | |
| 345 many places where data can be stored. We pick what are perhaps | |
| 346 the most likely places where interesting stuff will be. */ | |
| 347 return HASH5 ((HAS_SPECMETH_P (s, hash) ? | |
| 348 SPECMETH (s, hash, (obj, depth)) : 0), | |
| 2515 | 349 (Hashcode) s->methods, |
| 428 | 350 internal_hash (s->global_specs, depth + 1), |
| 351 internal_hash (s->frame_specs, depth + 1), | |
| 352 internal_hash (s->buffer_specs, depth + 1)); | |
| 353 } | |
| 354 | |
| 665 | 355 inline static Bytecount |
| 356 aligned_sizeof_specifier (Bytecount specifier_type_specific_size) | |
| 456 | 357 { |
| 826 | 358 return MAX_ALIGN_SIZE (offsetof (Lisp_Specifier, data) |
| 359 + specifier_type_specific_size); | |
| 456 | 360 } |
| 361 | |
| 665 | 362 static Bytecount |
| 442 | 363 sizeof_specifier (const void *header) |
| 428 | 364 { |
| 456 | 365 const Lisp_Specifier *p = (const Lisp_Specifier *) header; |
| 366 return aligned_sizeof_specifier (GHOST_SPECIFIER_P (p) | |
| 367 ? 0 | |
| 368 : p->methods->extra_data_size); | |
| 428 | 369 } |
| 370 | |
| 1204 | 371 static const struct memory_description specifier_methods_description_1[] = { |
| 440 | 372 { XD_LISP_OBJECT, offsetof (struct specifier_methods, predicate_symbol) }, |
| 428 | 373 { XD_END } |
| 374 }; | |
| 375 | |
| 1204 | 376 const struct sized_memory_description specifier_methods_description = { |
| 440 | 377 sizeof (struct specifier_methods), |
| 428 | 378 specifier_methods_description_1 |
| 379 }; | |
| 380 | |
| 1204 | 381 static const struct memory_description specifier_caching_description_1[] = { |
| 428 | 382 { XD_END } |
| 383 }; | |
| 384 | |
| 1204 | 385 static const struct sized_memory_description specifier_caching_description = { |
| 440 | 386 sizeof (struct specifier_caching), |
| 428 | 387 specifier_caching_description_1 |
| 388 }; | |
| 389 | |
| 1204 | 390 static const struct sized_memory_description specifier_extra_description_map[] |
| 391 = { | |
| 392 { offsetof (Lisp_Specifier, methods) }, | |
| 393 { offsetof (struct specifier_methods, extra_description) }, | |
| 394 { -1 }, | |
| 395 }; | |
| 396 | |
| 397 const struct memory_description specifier_description[] = { | |
| 2367 | 398 { XD_BLOCK_PTR, offsetof (Lisp_Specifier, methods), 1, |
| 2551 | 399 { &specifier_methods_description } }, |
| 440 | 400 { XD_LO_LINK, offsetof (Lisp_Specifier, next_specifier) }, |
| 401 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, global_specs) }, | |
| 402 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, device_specs) }, | |
| 403 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, frame_specs) }, | |
| 404 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, window_specs) }, | |
| 405 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, buffer_specs) }, | |
| 2367 | 406 { XD_BLOCK_PTR, offsetof (Lisp_Specifier, caching), 1, |
| 2551 | 407 { &specifier_caching_description } }, |
| 440 | 408 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, magic_parent) }, |
| 409 { XD_LISP_OBJECT, offsetof (Lisp_Specifier, fallback) }, | |
| 2367 | 410 { XD_BLOCK_ARRAY, offsetof (Lisp_Specifier, data), 1, |
| 2551 | 411 { specifier_extra_description_map } }, |
| 428 | 412 { XD_END } |
| 413 }; | |
| 414 | |
| 1204 | 415 static const struct memory_description specifier_empty_extra_description_1[] = |
| 416 { | |
| 417 { XD_END } | |
| 418 }; | |
| 419 | |
| 420 const struct sized_memory_description specifier_empty_extra_description = { | |
| 421 0, specifier_empty_extra_description_1 | |
| 422 }; | |
| 423 | |
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424 DEFINE_SIZABLE_LISP_OBJECT ("specifier", specifier, |
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425 mark_specifier, print_specifier, |
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426 finalize_specifier, |
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427 specifier_equal, specifier_hash, |
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428 specifier_description, |
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429 sizeof_specifier, |
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430 Lisp_Specifier); |
| 428 | 431 |
| 432 /************************************************************************/ | |
| 433 /* Creating specifiers */ | |
| 434 /************************************************************************/ | |
| 435 | |
| 436 static struct specifier_methods * | |
| 578 | 437 decode_specifier_type (Lisp_Object type, Error_Behavior errb) |
| 428 | 438 { |
| 439 int i; | |
| 440 | |
| 441 for (i = 0; i < Dynarr_length (the_specifier_type_entry_dynarr); i++) | |
| 442 { | |
| 443 if (EQ (type, Dynarr_at (the_specifier_type_entry_dynarr, i).symbol)) | |
| 444 return Dynarr_at (the_specifier_type_entry_dynarr, i).meths; | |
| 445 } | |
| 446 | |
| 563 | 447 maybe_invalid_argument ("Invalid specifier type", |
| 442 | 448 type, Qspecifier, errb); |
| 428 | 449 |
| 450 return 0; | |
| 451 } | |
| 452 | |
| 453 static int | |
| 454 valid_specifier_type_p (Lisp_Object type) | |
| 455 { | |
| 456 return decode_specifier_type (type, ERROR_ME_NOT) != 0; | |
| 457 } | |
| 458 | |
| 459 DEFUN ("valid-specifier-type-p", Fvalid_specifier_type_p, 1, 1, 0, /* | |
| 460 Given a SPECIFIER-TYPE, return non-nil if it is valid. | |
| 2953 | 461 Valid types are `generic', `integer', `boolean', `color', `font', `image', |
| 462 `face-boolean', and `toolbar'. | |
| 428 | 463 */ |
| 464 (specifier_type)) | |
| 465 { | |
| 466 return valid_specifier_type_p (specifier_type) ? Qt : Qnil; | |
| 467 } | |
| 468 | |
| 469 DEFUN ("specifier-type-list", Fspecifier_type_list, 0, 0, 0, /* | |
| 470 Return a list of valid specifier types. | |
| 471 */ | |
| 472 ()) | |
| 473 { | |
| 474 return Fcopy_sequence (Vspecifier_type_list); | |
| 475 } | |
| 476 | |
| 477 void | |
| 478 add_entry_to_specifier_type_list (Lisp_Object symbol, | |
| 479 struct specifier_methods *meths) | |
| 480 { | |
| 481 struct specifier_type_entry entry; | |
| 482 | |
| 483 entry.symbol = symbol; | |
| 484 entry.meths = meths; | |
| 485 Dynarr_add (the_specifier_type_entry_dynarr, entry); | |
| 486 Vspecifier_type_list = Fcons (symbol, Vspecifier_type_list); | |
| 487 } | |
| 488 | |
| 489 static Lisp_Object | |
| 490 make_specifier_internal (struct specifier_methods *spec_meths, | |
| 665 | 491 Bytecount data_size, int call_create_meth) |
| 428 | 492 { |
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493 Lisp_Object specifier = |
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494 ALLOC_SIZED_LISP_OBJECT (aligned_sizeof_specifier (data_size), specifier); |
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495 Lisp_Specifier *sp = XSPECIFIER (specifier); |
| 428 | 496 |
| 497 sp->methods = spec_meths; | |
| 498 sp->global_specs = Qnil; | |
| 499 sp->device_specs = Qnil; | |
| 500 sp->frame_specs = Qnil; | |
| 501 sp->window_specs = make_weak_list (WEAK_LIST_KEY_ASSOC); | |
| 502 sp->buffer_specs = Qnil; | |
| 503 sp->fallback = Qnil; | |
| 504 sp->magic_parent = Qnil; | |
| 505 sp->caching = 0; | |
| 506 sp->next_specifier = Vall_specifiers; | |
| 507 | |
| 508 Vall_specifiers = specifier; | |
| 509 | |
| 510 if (call_create_meth) | |
| 511 { | |
| 512 struct gcpro gcpro1; | |
| 513 GCPRO1 (specifier); | |
| 514 MAYBE_SPECMETH (XSPECIFIER (specifier), create, (specifier)); | |
| 515 UNGCPRO; | |
| 516 } | |
| 517 return specifier; | |
| 518 } | |
| 519 | |
| 520 static Lisp_Object | |
| 521 make_specifier (struct specifier_methods *meths) | |
| 522 { | |
| 523 return make_specifier_internal (meths, meths->extra_data_size, 1); | |
| 524 } | |
| 525 | |
| 526 Lisp_Object | |
| 527 make_magic_specifier (Lisp_Object type) | |
| 528 { | |
| 529 /* This function can GC */ | |
| 530 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME); | |
| 531 Lisp_Object bodily, ghost; | |
| 532 struct gcpro gcpro1; | |
| 533 | |
| 534 bodily = make_specifier (meths); | |
| 535 GCPRO1 (bodily); | |
| 536 ghost = make_specifier_internal (meths, 0, 0); | |
| 537 UNGCPRO; | |
| 538 | |
| 539 /* Connect guys together */ | |
| 540 XSPECIFIER(bodily)->magic_parent = Qt; | |
| 541 XSPECIFIER(bodily)->fallback = ghost; | |
| 542 XSPECIFIER(ghost)->magic_parent = bodily; | |
| 543 | |
| 544 return bodily; | |
| 545 } | |
| 546 | |
| 547 DEFUN ("make-specifier", Fmake_specifier, 1, 1, 0, /* | |
| 548 Return a new specifier object of type TYPE. | |
| 549 | |
| 550 A specifier is an object that can be used to keep track of a property | |
| 551 whose value can be per-buffer, per-window, per-frame, or per-device, | |
| 442 | 552 and can further be restricted to a particular console-type or |
| 553 device-class. Specifiers are used, for example, for the various | |
| 554 built-in properties of a face; this allows a face to have different | |
| 555 values in different frames, buffers, etc. | |
| 556 | |
| 557 When speaking of the value of a specifier, it is important to | |
| 558 distinguish between the *setting* of a specifier, called an | |
| 559 \"instantiator\", and the *actual value*, called an \"instance\". You | |
| 560 put various possible instantiators (i.e. settings) into a specifier | |
| 561 and associate them with particular locales (buffer, window, frame, | |
| 562 device, global), and then the instance (i.e. actual value) is | |
| 563 retrieved in a specific domain (window, frame, device) by looking | |
| 564 through the possible instantiators (i.e. settings). This process is | |
| 565 called \"instantiation\". | |
| 444 | 566 |
| 442 | 567 To put settings into a specifier, use `set-specifier', or the |
| 568 lower-level functions `add-spec-to-specifier' and | |
| 569 `add-spec-list-to-specifier'. You can also temporarily bind a setting | |
| 570 to a specifier using `let-specifier'. To retrieve settings, use | |
| 571 `specifier-specs', or its lower-level counterpart | |
| 2953 | 572 `specifier-spec-list'. |
| 573 | |
| 574 To determine the actual value (i.e. the instance) in a particular domain, use | |
| 575 `specifier-instance'. To determine the corresponding setting that yielded | |
| 576 the value (i.e. the instantiator), use `specifier-instantiator'. | |
| 442 | 577 |
| 578 For more information, see `set-specifier', `specifier-instance', | |
| 428 | 579 `specifier-specs', and `add-spec-to-specifier'; or, for a detailed |
| 442 | 580 description of specifiers, including how exactly the instantiation |
| 581 process works, see the chapter on specifiers in the XEmacs Lisp | |
| 582 Reference Manual. | |
| 428 | 583 |
| 584 TYPE specifies the particular type of specifier, and should be one of | |
| 2953 | 585 the symbols `generic', `integer', `natnum', `boolean', `color', `font', |
| 586 `image', `face-boolean', `display-table', `gutter', `gutter-size', | |
| 587 `gutter-visible' or `toolbar'. | |
| 442 | 588 |
| 589 For more information on particular types of specifiers, see the | |
| 590 functions `make-generic-specifier', `make-integer-specifier', | |
| 591 `make-natnum-specifier', `make-boolean-specifier', | |
| 592 `make-color-specifier', `make-font-specifier', `make-image-specifier', | |
| 593 `make-face-boolean-specifier', `make-gutter-size-specifier', | |
| 594 `make-gutter-visible-specifier', `default-toolbar', `default-gutter', | |
| 595 and `current-display-table'. | |
| 428 | 596 */ |
| 597 (type)) | |
| 598 { | |
| 599 /* This function can GC */ | |
| 442 | 600 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME); |
| 428 | 601 |
| 602 return make_specifier (meths); | |
| 603 } | |
| 604 | |
| 605 DEFUN ("specifierp", Fspecifierp, 1, 1, 0, /* | |
| 606 Return t if OBJECT is a specifier. | |
| 607 | |
| 608 A specifier is an object that can be used to keep track of a property | |
| 609 whose value can be per-buffer, per-window, per-frame, or per-device, | |
| 610 and can further be restricted to a particular console-type or device-class. | |
| 611 See `make-specifier'. | |
| 612 */ | |
| 613 (object)) | |
| 614 { | |
| 615 return SPECIFIERP (object) ? Qt : Qnil; | |
| 616 } | |
| 617 | |
| 618 DEFUN ("specifier-type", Fspecifier_type, 1, 1, 0, /* | |
| 619 Return the type of SPECIFIER. | |
| 620 */ | |
| 621 (specifier)) | |
| 622 { | |
| 623 CHECK_SPECIFIER (specifier); | |
| 624 return intern (XSPECIFIER (specifier)->methods->name); | |
| 625 } | |
| 626 | |
| 627 | |
| 628 /************************************************************************/ | |
| 629 /* Locales and domains */ | |
| 630 /************************************************************************/ | |
| 631 | |
| 632 DEFUN ("valid-specifier-locale-p", Fvalid_specifier_locale_p, 1, 1, 0, /* | |
| 633 Return t if LOCALE is a valid specifier locale. | |
| 2953 | 634 Valid locales are devices, frames, windows, buffers, and `global'. |
| 428 | 635 \(nil is not valid.) |
| 636 */ | |
| 637 (locale)) | |
| 638 { | |
| 639 /* This cannot GC. */ | |
| 640 return ((DEVICEP (locale) && DEVICE_LIVE_P (XDEVICE (locale))) || | |
| 641 (FRAMEP (locale) && FRAME_LIVE_P (XFRAME (locale))) || | |
| 642 (BUFFERP (locale) && BUFFER_LIVE_P (XBUFFER (locale))) || | |
| 643 /* dead windows are allowed because they may become live | |
| 644 windows again when a window configuration is restored */ | |
| 645 WINDOWP (locale) || | |
| 646 EQ (locale, Qglobal)) | |
| 647 ? Qt : Qnil; | |
| 648 } | |
| 649 | |
| 650 DEFUN ("valid-specifier-domain-p", Fvalid_specifier_domain_p, 1, 1, 0, /* | |
| 651 Return t if DOMAIN is a valid specifier domain. | |
| 2953 | 652 A domain is used to instantiate a specifier (i.e. determine the specifier's |
| 442 | 653 value in that domain). Valid domains are image instances, windows, frames, |
| 654 and devices. \(nil is not valid.) image instances are pseudo-domains since | |
| 655 instantiation will actually occur in the window the image instance itself is | |
| 656 instantiated in. | |
| 428 | 657 */ |
| 658 (domain)) | |
| 659 { | |
| 660 /* This cannot GC. */ | |
| 661 return ((DEVICEP (domain) && DEVICE_LIVE_P (XDEVICE (domain))) || | |
| 662 (FRAMEP (domain) && FRAME_LIVE_P (XFRAME (domain))) || | |
| 442 | 663 (WINDOWP (domain) && WINDOW_LIVE_P (XWINDOW (domain))) || |
| 664 /* #### get image instances out of domains! */ | |
| 665 IMAGE_INSTANCEP (domain)) | |
| 428 | 666 ? Qt : Qnil; |
| 667 } | |
| 668 | |
| 442 | 669 DEFUN ("valid-specifier-locale-type-p", Fvalid_specifier_locale_type_p, 1, 1, 0, |
| 670 /* | |
| 428 | 671 Given a specifier LOCALE-TYPE, return non-nil if it is valid. |
| 2953 | 672 Valid locale types are `global', `device', `frame', `window', and `buffer'. |
| 428 | 673 \(Note, however, that in functions that accept either a locale or a locale |
| 2953 | 674 type, `global' is considered an individual locale.) |
| 428 | 675 */ |
| 676 (locale_type)) | |
| 677 { | |
| 678 /* This cannot GC. */ | |
| 679 return (EQ (locale_type, Qglobal) || | |
| 680 EQ (locale_type, Qdevice) || | |
| 681 EQ (locale_type, Qframe) || | |
| 682 EQ (locale_type, Qwindow) || | |
| 683 EQ (locale_type, Qbuffer)) ? Qt : Qnil; | |
| 684 } | |
| 685 | |
| 686 static void | |
| 687 check_valid_locale_or_locale_type (Lisp_Object locale) | |
| 688 { | |
| 689 /* This cannot GC. */ | |
| 690 if (EQ (locale, Qall) || | |
| 691 !NILP (Fvalid_specifier_locale_p (locale)) || | |
| 692 !NILP (Fvalid_specifier_locale_type_p (locale))) | |
| 693 return; | |
| 563 | 694 invalid_argument ("Invalid specifier locale or locale type", locale); |
| 428 | 695 } |
| 696 | |
| 697 DEFUN ("specifier-locale-type-from-locale", Fspecifier_locale_type_from_locale, | |
| 698 1, 1, 0, /* | |
| 699 Given a specifier LOCALE, return its type. | |
| 700 */ | |
| 701 (locale)) | |
| 702 { | |
| 703 /* This cannot GC. */ | |
| 704 if (NILP (Fvalid_specifier_locale_p (locale))) | |
| 563 | 705 invalid_argument ("Invalid specifier locale", |
| 442 | 706 locale); |
| 428 | 707 if (DEVICEP (locale)) return Qdevice; |
| 708 if (FRAMEP (locale)) return Qframe; | |
| 709 if (WINDOWP (locale)) return Qwindow; | |
| 710 if (BUFFERP (locale)) return Qbuffer; | |
| 711 assert (EQ (locale, Qglobal)); | |
| 712 return Qglobal; | |
| 713 } | |
| 714 | |
| 715 static Lisp_Object | |
| 716 decode_locale (Lisp_Object locale) | |
| 717 { | |
| 718 /* This cannot GC. */ | |
| 719 if (NILP (locale)) | |
| 720 return Qglobal; | |
| 721 else if (!NILP (Fvalid_specifier_locale_p (locale))) | |
| 722 return locale; | |
| 723 else | |
| 563 | 724 invalid_argument ("Invalid specifier locale", |
| 442 | 725 locale); |
| 428 | 726 |
| 727 return Qnil; | |
| 728 } | |
| 729 | |
| 730 static enum spec_locale_type | |
| 731 decode_locale_type (Lisp_Object locale_type) | |
| 732 { | |
| 733 /* This cannot GC. */ | |
| 734 if (EQ (locale_type, Qglobal)) return LOCALE_GLOBAL; | |
| 735 if (EQ (locale_type, Qdevice)) return LOCALE_DEVICE; | |
| 736 if (EQ (locale_type, Qframe)) return LOCALE_FRAME; | |
| 737 if (EQ (locale_type, Qwindow)) return LOCALE_WINDOW; | |
| 738 if (EQ (locale_type, Qbuffer)) return LOCALE_BUFFER; | |
| 739 | |
| 563 | 740 invalid_argument ("Invalid specifier locale type", |
| 442 | 741 locale_type); |
| 1204 | 742 RETURN_NOT_REACHED (LOCALE_GLOBAL); |
| 428 | 743 } |
| 744 | |
| 745 Lisp_Object | |
| 746 decode_locale_list (Lisp_Object locale) | |
| 747 { | |
| 748 /* This cannot GC. */ | |
| 749 /* The return value of this function must be GCPRO'd. */ | |
| 750 if (NILP (locale)) | |
| 751 { | |
| 752 return list1 (Qall); | |
| 753 } | |
| 754 else if (CONSP (locale)) | |
| 755 { | |
| 756 EXTERNAL_LIST_LOOP_2 (elt, locale) | |
| 757 check_valid_locale_or_locale_type (elt); | |
| 758 return locale; | |
| 759 } | |
| 760 else | |
| 761 { | |
| 762 check_valid_locale_or_locale_type (locale); | |
| 763 return list1 (locale); | |
| 764 } | |
| 765 } | |
| 766 | |
| 767 static enum spec_locale_type | |
| 768 locale_type_from_locale (Lisp_Object locale) | |
| 769 { | |
| 770 return decode_locale_type (Fspecifier_locale_type_from_locale (locale)); | |
| 771 } | |
| 772 | |
| 773 static void | |
| 774 check_valid_domain (Lisp_Object domain) | |
| 775 { | |
| 776 if (NILP (Fvalid_specifier_domain_p (domain))) | |
| 563 | 777 invalid_argument ("Invalid specifier domain", |
| 442 | 778 domain); |
| 428 | 779 } |
| 780 | |
| 442 | 781 Lisp_Object |
| 428 | 782 decode_domain (Lisp_Object domain) |
| 783 { | |
| 784 if (NILP (domain)) | |
| 785 return Fselected_window (Qnil); | |
| 786 check_valid_domain (domain); | |
| 787 return domain; | |
| 788 } | |
| 789 | |
| 790 | |
| 791 /************************************************************************/ | |
| 792 /* Tags */ | |
| 793 /************************************************************************/ | |
| 794 | |
| 795 DEFUN ("valid-specifier-tag-p", Fvalid_specifier_tag_p, 1, 1, 0, /* | |
| 796 Return non-nil if TAG is a valid specifier tag. | |
| 797 See also `valid-specifier-tag-set-p'. | |
| 798 */ | |
| 799 (tag)) | |
| 800 { | |
| 801 return (valid_console_type_p (tag) || | |
| 802 valid_device_class_p (tag) || | |
| 803 !NILP (assq_no_quit (tag, Vuser_defined_tags))) ? Qt : Qnil; | |
| 804 } | |
| 805 | |
| 806 DEFUN ("valid-specifier-tag-set-p", Fvalid_specifier_tag_set_p, 1, 1, 0, /* | |
| 807 Return non-nil if TAG-SET is a valid specifier tag set. | |
| 808 | |
| 809 A specifier tag set is an entity that is attached to an instantiator | |
| 810 and can be used to restrict the scope of that instantiator to a | |
| 811 particular device class or device type and/or to mark instantiators | |
| 812 added by a particular package so that they can be later removed. | |
| 813 | |
| 814 A specifier tag set consists of a list of zero of more specifier tags, | |
| 815 each of which is a symbol that is recognized by XEmacs as a tag. | |
| 816 \(The valid device types and device classes are always tags, as are | |
| 817 any tags defined by `define-specifier-tag'.) It is called a "tag set" | |
| 818 \(as opposed to a list) because the order of the tags or the number of | |
| 819 times a particular tag occurs does not matter. | |
| 820 | |
| 821 Each tag has a predicate associated with it, which specifies whether | |
| 822 that tag applies to a particular device. The tags which are device types | |
| 823 and classes match devices of that type or class. User-defined tags can | |
| 824 have any predicate, or none (meaning that all devices match). When | |
| 2953 | 825 attempting to instantiate a specifier, a particular instantiator is only |
| 826 considered if the device of the domain being instantiated over matches | |
| 428 | 827 all tags in the tag set attached to that instantiator. |
| 828 | |
| 829 Most of the time, a tag set is not specified, and the instantiator | |
| 830 gets a null tag set, which matches all devices. | |
| 831 */ | |
| 832 (tag_set)) | |
| 833 { | |
| 834 Lisp_Object rest; | |
| 835 | |
| 836 for (rest = tag_set; !NILP (rest); rest = XCDR (rest)) | |
| 837 { | |
| 838 if (!CONSP (rest)) | |
| 839 return Qnil; | |
| 840 if (NILP (Fvalid_specifier_tag_p (XCAR (rest)))) | |
| 841 return Qnil; | |
| 842 QUIT; | |
| 843 } | |
| 844 return Qt; | |
| 845 } | |
| 846 | |
| 847 Lisp_Object | |
| 848 decode_specifier_tag_set (Lisp_Object tag_set) | |
| 849 { | |
| 850 /* The return value of this function must be GCPRO'd. */ | |
| 851 if (!NILP (Fvalid_specifier_tag_p (tag_set))) | |
| 852 return list1 (tag_set); | |
| 853 if (NILP (Fvalid_specifier_tag_set_p (tag_set))) | |
| 563 | 854 invalid_argument ("Invalid specifier tag-set", |
| 442 | 855 tag_set); |
| 428 | 856 return tag_set; |
| 857 } | |
| 858 | |
| 859 static Lisp_Object | |
| 860 canonicalize_tag_set (Lisp_Object tag_set) | |
| 861 { | |
| 862 int len = XINT (Flength (tag_set)); | |
| 863 Lisp_Object *tags, rest; | |
| 864 int i, j; | |
| 865 | |
| 866 /* We assume in this function that the tag_set has already been | |
| 867 validated, so there are no surprises. */ | |
| 868 | |
| 869 if (len == 0 || len == 1) | |
| 870 /* most common case */ | |
| 871 return tag_set; | |
| 872 | |
| 873 tags = alloca_array (Lisp_Object, len); | |
| 874 | |
| 875 i = 0; | |
| 876 LIST_LOOP (rest, tag_set) | |
| 877 tags[i++] = XCAR (rest); | |
| 878 | |
| 879 /* Sort the list of tags. We use a bubble sort here (copied from | |
| 880 extent_fragment_update()) -- reduces the function call overhead, | |
| 881 and is the fastest sort for small numbers of items. */ | |
| 882 | |
| 883 for (i = 1; i < len; i++) | |
| 884 { | |
| 885 j = i - 1; | |
| 886 while (j >= 0 && | |
| 793 | 887 qxestrcmp (XSTRING_DATA (XSYMBOL (tags[j])->name), |
| 888 XSTRING_DATA (XSYMBOL (tags[j+1])->name)) > 0) | |
| 428 | 889 { |
| 890 Lisp_Object tmp = tags[j]; | |
| 891 tags[j] = tags[j+1]; | |
| 892 tags[j+1] = tmp; | |
| 893 j--; | |
| 894 } | |
| 895 } | |
| 896 | |
| 897 /* Now eliminate duplicates. */ | |
| 898 | |
| 899 for (i = 1, j = 1; i < len; i++) | |
| 900 { | |
| 901 /* j holds the destination, i the source. */ | |
| 902 if (!EQ (tags[i], tags[i-1])) | |
| 903 tags[j++] = tags[i]; | |
| 904 } | |
| 905 | |
| 906 return Flist (j, tags); | |
| 907 } | |
| 908 | |
| 909 DEFUN ("canonicalize-tag-set", Fcanonicalize_tag_set, 1, 1, 0, /* | |
| 910 Canonicalize the given tag set. | |
| 911 Two canonicalized tag sets can be compared with `equal' to see if they | |
| 912 represent the same tag set. (Specifically, canonicalizing involves | |
| 913 sorting by symbol name and removing duplicates.) | |
| 914 */ | |
| 915 (tag_set)) | |
| 916 { | |
| 917 if (NILP (Fvalid_specifier_tag_set_p (tag_set))) | |
| 563 | 918 invalid_argument ("Invalid tag set", tag_set); |
| 428 | 919 return canonicalize_tag_set (tag_set); |
| 920 } | |
| 921 | |
| 922 static int | |
| 923 device_matches_specifier_tag_set_p (Lisp_Object device, Lisp_Object tag_set) | |
| 924 { | |
| 925 Lisp_Object devtype, devclass, rest; | |
| 926 struct device *d = XDEVICE (device); | |
| 927 | |
| 928 devtype = DEVICE_TYPE (d); | |
| 929 devclass = DEVICE_CLASS (d); | |
| 930 | |
| 931 LIST_LOOP (rest, tag_set) | |
| 932 { | |
| 933 Lisp_Object tag = XCAR (rest); | |
| 934 Lisp_Object assoc; | |
| 935 | |
| 936 if (EQ (tag, devtype) || EQ (tag, devclass)) | |
| 937 continue; | |
| 938 assoc = assq_no_quit (tag, DEVICE_USER_DEFINED_TAGS (d)); | |
| 939 /* other built-in tags (device types/classes) are not in | |
| 940 the user-defined-tags list. */ | |
| 941 if (NILP (assoc) || NILP (XCDR (assoc))) | |
| 942 return 0; | |
| 943 } | |
| 944 | |
| 945 return 1; | |
| 946 } | |
| 947 | |
| 442 | 948 DEFUN ("device-matches-specifier-tag-set-p", |
| 949 Fdevice_matches_specifier_tag_set_p, 2, 2, 0, /* | |
| 428 | 950 Return non-nil if DEVICE matches specifier tag set TAG-SET. |
| 951 This means that DEVICE matches each tag in the tag set. (Every | |
| 952 tag recognized by XEmacs has a predicate associated with it that | |
| 953 specifies which devices match it.) | |
| 954 */ | |
| 955 (device, tag_set)) | |
| 956 { | |
| 957 CHECK_LIVE_DEVICE (device); | |
| 958 | |
| 959 if (NILP (Fvalid_specifier_tag_set_p (tag_set))) | |
| 563 | 960 invalid_argument ("Invalid tag set", tag_set); |
| 428 | 961 |
| 962 return device_matches_specifier_tag_set_p (device, tag_set) ? Qt : Qnil; | |
| 963 } | |
| 964 | |
| 965 DEFUN ("define-specifier-tag", Fdefine_specifier_tag, 1, 2, 0, /* | |
| 966 Define a new specifier tag. | |
| 967 If PREDICATE is specified, it should be a function of one argument | |
| 968 \(a device) that specifies whether the tag matches that particular | |
| 969 device. If PREDICATE is omitted, the tag matches all devices. | |
| 970 | |
| 971 You can redefine an existing user-defined specifier tag. However, | |
| 972 you cannot redefine the built-in specifier tags (the device types | |
| 2953 | 973 and classes) or the symbols nil, t, `all', or `global'. |
| 428 | 974 */ |
| 975 (tag, predicate)) | |
| 976 { | |
| 977 Lisp_Object assoc, devcons, concons; | |
| 978 int recompute = 0; | |
| 979 | |
| 980 CHECK_SYMBOL (tag); | |
| 981 if (valid_device_class_p (tag) || | |
| 982 valid_console_type_p (tag)) | |
| 563 | 983 invalid_change ("Cannot redefine built-in specifier tags", tag); |
| 428 | 984 /* Try to prevent common instantiators and locales from being |
| 985 redefined, to reduce ambiguity */ | |
| 986 if (NILP (tag) || EQ (tag, Qt) || EQ (tag, Qall) || EQ (tag, Qglobal)) | |
| 2953 | 987 invalid_change ("Cannot define nil, t, `all', or `global'", tag); |
| 428 | 988 assoc = assq_no_quit (tag, Vuser_defined_tags); |
| 989 if (NILP (assoc)) | |
| 990 { | |
| 991 recompute = 1; | |
| 992 Vuser_defined_tags = Fcons (Fcons (tag, predicate), Vuser_defined_tags); | |
| 993 DEVICE_LOOP_NO_BREAK (devcons, concons) | |
| 994 { | |
| 995 struct device *d = XDEVICE (XCAR (devcons)); | |
| 996 /* Initially set the value to t in case of error | |
| 997 in predicate */ | |
| 998 DEVICE_USER_DEFINED_TAGS (d) = | |
| 999 Fcons (Fcons (tag, Qt), DEVICE_USER_DEFINED_TAGS (d)); | |
| 1000 } | |
| 1001 } | |
| 1002 else if (!NILP (predicate) && !NILP (XCDR (assoc))) | |
| 1003 { | |
| 1004 recompute = 1; | |
| 1005 XCDR (assoc) = predicate; | |
| 1006 } | |
| 1007 | |
| 1008 /* recompute the tag values for all devices. However, in the special | |
| 1009 case where both the old and new predicates are nil, we know that | |
| 1010 we don't have to do this. (It's probably common for people to | |
| 1011 call (define-specifier-tag) more than once on the same tag, | |
| 1012 and the most common case is where PREDICATE is not specified.) */ | |
| 1013 | |
| 1014 if (recompute) | |
| 1015 { | |
| 1016 DEVICE_LOOP_NO_BREAK (devcons, concons) | |
| 1017 { | |
| 1018 Lisp_Object device = XCAR (devcons); | |
| 1019 assoc = assq_no_quit (tag, | |
| 1020 DEVICE_USER_DEFINED_TAGS (XDEVICE (device))); | |
| 1021 assert (CONSP (assoc)); | |
| 1022 if (NILP (predicate)) | |
| 1023 XCDR (assoc) = Qt; | |
| 1024 else | |
| 1025 XCDR (assoc) = !NILP (call1 (predicate, device)) ? Qt : Qnil; | |
| 1026 } | |
| 1027 } | |
| 1028 | |
| 1029 return Qnil; | |
| 1030 } | |
| 1031 | |
| 1032 /* Called at device-creation time to initialize the user-defined | |
| 1033 tag values for the newly-created device. */ | |
| 1034 | |
| 1035 void | |
| 1036 setup_device_initial_specifier_tags (struct device *d) | |
| 1037 { | |
| 1038 Lisp_Object rest, rest2; | |
| 793 | 1039 Lisp_Object device = wrap_device (d); |
| 1040 | |
| 428 | 1041 DEVICE_USER_DEFINED_TAGS (d) = Fcopy_alist (Vuser_defined_tags); |
| 1042 | |
| 1043 /* Now set up the initial values */ | |
| 1044 LIST_LOOP (rest, DEVICE_USER_DEFINED_TAGS (d)) | |
| 1045 XCDR (XCAR (rest)) = Qt; | |
| 1046 | |
| 1047 for (rest = Vuser_defined_tags, rest2 = DEVICE_USER_DEFINED_TAGS (d); | |
| 1048 !NILP (rest); rest = XCDR (rest), rest2 = XCDR (rest2)) | |
| 1049 { | |
| 1050 Lisp_Object predicate = XCDR (XCAR (rest)); | |
| 1051 if (NILP (predicate)) | |
| 1052 XCDR (XCAR (rest2)) = Qt; | |
| 1053 else | |
| 872 | 1054 XCDR (XCAR (rest2)) = |
| 1055 !NILP (call_critical_lisp_code (d, predicate, device)) ? Qt : Qnil; | |
| 428 | 1056 } |
| 1057 } | |
| 1058 | |
| 442 | 1059 DEFUN ("device-matching-specifier-tag-list", |
| 1060 Fdevice_matching_specifier_tag_list, | |
| 428 | 1061 0, 1, 0, /* |
| 1062 Return a list of all specifier tags matching DEVICE. | |
| 1063 DEVICE defaults to the selected device if omitted. | |
| 1064 */ | |
| 1065 (device)) | |
| 1066 { | |
| 1067 struct device *d = decode_device (device); | |
| 1068 Lisp_Object rest, list = Qnil; | |
| 1069 struct gcpro gcpro1; | |
| 1070 | |
| 1071 GCPRO1 (list); | |
| 1072 | |
| 1073 LIST_LOOP (rest, DEVICE_USER_DEFINED_TAGS (d)) | |
| 1074 { | |
| 1075 if (!NILP (XCDR (XCAR (rest)))) | |
| 1076 list = Fcons (XCAR (XCAR (rest)), list); | |
| 1077 } | |
| 1078 | |
| 1079 list = Fnreverse (list); | |
| 1080 list = Fcons (DEVICE_CLASS (d), list); | |
| 1081 list = Fcons (DEVICE_TYPE (d), list); | |
| 1082 | |
| 1083 RETURN_UNGCPRO (list); | |
| 1084 } | |
| 1085 | |
| 1086 DEFUN ("specifier-tag-list", Fspecifier_tag_list, 0, 0, 0, /* | |
| 1087 Return a list of all currently-defined specifier tags. | |
| 1088 This includes the built-in ones (the device types and classes). | |
| 1089 */ | |
| 1090 ()) | |
| 1091 { | |
| 1092 Lisp_Object list = Qnil, rest; | |
| 1093 struct gcpro gcpro1; | |
| 1094 | |
| 1095 GCPRO1 (list); | |
| 1096 | |
| 1097 LIST_LOOP (rest, Vuser_defined_tags) | |
| 1098 list = Fcons (XCAR (XCAR (rest)), list); | |
| 1099 | |
| 1100 list = Fnreverse (list); | |
| 1101 list = nconc2 (Fcopy_sequence (Vdevice_class_list), list); | |
| 1102 list = nconc2 (Fcopy_sequence (Vconsole_type_list), list); | |
| 1103 | |
| 1104 RETURN_UNGCPRO (list); | |
| 1105 } | |
| 1106 | |
| 1107 DEFUN ("specifier-tag-predicate", Fspecifier_tag_predicate, 1, 1, 0, /* | |
| 1108 Return the predicate for the given specifier tag. | |
| 1109 */ | |
| 1110 (tag)) | |
| 1111 { | |
| 1112 /* The return value of this function must be GCPRO'd. */ | |
| 1113 CHECK_SYMBOL (tag); | |
| 1114 | |
| 1115 if (NILP (Fvalid_specifier_tag_p (tag))) | |
| 563 | 1116 invalid_argument ("Invalid specifier tag", |
| 442 | 1117 tag); |
| 428 | 1118 |
| 1119 /* Make up some predicates for the built-in types */ | |
| 1120 | |
| 1121 if (valid_console_type_p (tag)) | |
| 1122 return list3 (Qlambda, list1 (Qdevice), | |
| 1123 list3 (Qeq, list2 (Qquote, tag), | |
| 1124 list2 (Qconsole_type, Qdevice))); | |
| 1125 | |
| 1126 if (valid_device_class_p (tag)) | |
| 1127 return list3 (Qlambda, list1 (Qdevice), | |
| 1128 list3 (Qeq, list2 (Qquote, tag), | |
| 1129 list2 (Qdevice_class, Qdevice))); | |
| 1130 | |
| 1131 return XCDR (assq_no_quit (tag, Vuser_defined_tags)); | |
| 1132 } | |
| 1133 | |
| 1134 /* Return true if A "matches" B. If EXACT_P is 0, A must be a subset of B. | |
| 1135 Otherwise, A must be `equal' to B. The sets must be canonicalized. */ | |
| 1136 static int | |
| 1137 tag_sets_match_p (Lisp_Object a, Lisp_Object b, int exact_p) | |
| 1138 { | |
| 1139 if (!exact_p) | |
| 1140 { | |
| 1141 while (!NILP (a) && !NILP (b)) | |
| 1142 { | |
| 1143 if (EQ (XCAR (a), XCAR (b))) | |
| 1144 a = XCDR (a); | |
| 1145 b = XCDR (b); | |
| 1146 } | |
| 1147 | |
| 1148 return NILP (a); | |
| 1149 } | |
| 1150 else | |
| 1151 { | |
| 1152 while (!NILP (a) && !NILP (b)) | |
| 1153 { | |
| 1154 if (!EQ (XCAR (a), XCAR (b))) | |
| 1155 return 0; | |
| 1156 a = XCDR (a); | |
| 1157 b = XCDR (b); | |
| 1158 } | |
| 1159 | |
| 1160 return NILP (a) && NILP (b); | |
| 1161 } | |
| 1162 } | |
| 1163 | |
| 1164 | |
| 1165 /************************************************************************/ | |
| 1166 /* Spec-lists and inst-lists */ | |
| 1167 /************************************************************************/ | |
| 1168 | |
| 1169 static Lisp_Object | |
| 1170 call_validate_method (Lisp_Object boxed_method, Lisp_Object instantiator) | |
| 1171 { | |
| 1172 ((void (*)(Lisp_Object)) get_opaque_ptr (boxed_method)) (instantiator); | |
| 1173 return Qt; | |
| 1174 } | |
| 1175 | |
| 1176 static Lisp_Object | |
| 1177 check_valid_instantiator (Lisp_Object instantiator, | |
| 1178 struct specifier_methods *meths, | |
| 578 | 1179 Error_Behavior errb) |
| 428 | 1180 { |
| 1181 if (meths->validate_method) | |
| 1182 { | |
| 1183 Lisp_Object retval; | |
| 1184 | |
| 1185 if (ERRB_EQ (errb, ERROR_ME)) | |
| 1186 { | |
| 1187 (meths->validate_method) (instantiator); | |
| 1188 retval = Qt; | |
| 1189 } | |
| 1190 else | |
| 1191 { | |
| 1192 Lisp_Object opaque = make_opaque_ptr ((void *) | |
| 1193 meths->validate_method); | |
| 1194 struct gcpro gcpro1; | |
| 1195 | |
| 1196 GCPRO1 (opaque); | |
| 1197 retval = call_with_suspended_errors | |
| 1198 ((lisp_fn_t) call_validate_method, | |
| 1199 Qnil, Qspecifier, errb, 2, opaque, instantiator); | |
| 1200 | |
| 1201 free_opaque_ptr (opaque); | |
| 1202 UNGCPRO; | |
| 1203 } | |
| 1204 | |
| 1205 return retval; | |
| 1206 } | |
| 1207 return Qt; | |
| 1208 } | |
| 1209 | |
| 1210 DEFUN ("check-valid-instantiator", Fcheck_valid_instantiator, 2, 2, 0, /* | |
| 1211 Signal an error if INSTANTIATOR is invalid for SPECIFIER-TYPE. | |
| 1212 */ | |
| 1213 (instantiator, specifier_type)) | |
| 1214 { | |
| 1215 struct specifier_methods *meths = decode_specifier_type (specifier_type, | |
| 1216 ERROR_ME); | |
| 1217 | |
| 1218 return check_valid_instantiator (instantiator, meths, ERROR_ME); | |
| 1219 } | |
| 1220 | |
| 1221 DEFUN ("valid-instantiator-p", Fvalid_instantiator_p, 2, 2, 0, /* | |
| 1222 Return non-nil if INSTANTIATOR is valid for SPECIFIER-TYPE. | |
| 1223 */ | |
| 1224 (instantiator, specifier_type)) | |
| 1225 { | |
| 1226 struct specifier_methods *meths = decode_specifier_type (specifier_type, | |
| 1227 ERROR_ME); | |
| 1228 | |
| 1229 return check_valid_instantiator (instantiator, meths, ERROR_ME_NOT); | |
| 1230 } | |
| 1231 | |
| 1232 static Lisp_Object | |
| 1233 check_valid_inst_list (Lisp_Object inst_list, struct specifier_methods *meths, | |
| 578 | 1234 Error_Behavior errb) |
| 428 | 1235 { |
| 2159 | 1236 EXTERNAL_LIST_LOOP_2 (inst_pair, inst_list) |
| 428 | 1237 { |
| 2159 | 1238 Lisp_Object tag_set; |
| 1239 | |
| 1240 if (!CONSP (inst_pair)) | |
| 428 | 1241 { |
| 563 | 1242 maybe_sferror ( |
| 442 | 1243 "Invalid instantiator pair", inst_pair, |
| 428 | 1244 Qspecifier, errb); |
| 1245 return Qnil; | |
| 1246 } | |
| 1247 if (NILP (Fvalid_specifier_tag_set_p (tag_set = XCAR (inst_pair)))) | |
| 1248 { | |
| 563 | 1249 maybe_invalid_argument ( |
| 442 | 1250 "Invalid specifier tag", tag_set, |
| 428 | 1251 Qspecifier, errb); |
| 1252 return Qnil; | |
| 1253 } | |
| 1254 | |
| 1255 if (NILP (check_valid_instantiator (XCDR (inst_pair), meths, errb))) | |
| 1256 return Qnil; | |
| 1257 } | |
| 1258 | |
| 1259 return Qt; | |
| 1260 } | |
| 1261 | |
| 1262 DEFUN ("check-valid-inst-list", Fcheck_valid_inst_list, 2, 2, 0, /* | |
| 1263 Signal an error if INST-LIST is invalid for specifier type TYPE. | |
| 1264 */ | |
| 1265 (inst_list, type)) | |
| 1266 { | |
| 1267 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME); | |
| 1268 | |
| 1269 return check_valid_inst_list (inst_list, meths, ERROR_ME); | |
| 1270 } | |
| 1271 | |
| 1272 DEFUN ("valid-inst-list-p", Fvalid_inst_list_p, 2, 2, 0, /* | |
| 1273 Return non-nil if INST-LIST is valid for specifier type TYPE. | |
| 1274 */ | |
| 1275 (inst_list, type)) | |
| 1276 { | |
| 1277 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME); | |
| 1278 | |
| 1279 return check_valid_inst_list (inst_list, meths, ERROR_ME_NOT); | |
| 1280 } | |
| 1281 | |
| 1282 static Lisp_Object | |
| 1283 check_valid_spec_list (Lisp_Object spec_list, struct specifier_methods *meths, | |
| 578 | 1284 Error_Behavior errb) |
| 428 | 1285 { |
| 2159 | 1286 EXTERNAL_LIST_LOOP_2 (spec, spec_list) |
| 428 | 1287 { |
| 2159 | 1288 Lisp_Object locale; |
| 1289 if (!CONSP (spec)) | |
| 428 | 1290 { |
| 563 | 1291 maybe_sferror ( |
| 442 | 1292 "Invalid specification list", spec_list, |
| 428 | 1293 Qspecifier, errb); |
| 1294 return Qnil; | |
| 1295 } | |
| 1296 if (NILP (Fvalid_specifier_locale_p (locale = XCAR (spec)))) | |
| 1297 { | |
| 563 | 1298 maybe_invalid_argument ( |
| 442 | 1299 "Invalid specifier locale", locale, |
| 428 | 1300 Qspecifier, errb); |
| 1301 return Qnil; | |
| 1302 } | |
| 1303 | |
| 1304 if (NILP (check_valid_inst_list (XCDR (spec), meths, errb))) | |
| 1305 return Qnil; | |
| 1306 } | |
| 1307 | |
| 1308 return Qt; | |
| 1309 } | |
| 1310 | |
| 1311 DEFUN ("check-valid-spec-list", Fcheck_valid_spec_list, 2, 2, 0, /* | |
| 1312 Signal an error if SPEC-LIST is invalid for specifier type TYPE. | |
| 1313 */ | |
| 1314 (spec_list, type)) | |
| 1315 { | |
| 1316 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME); | |
| 1317 | |
| 1318 return check_valid_spec_list (spec_list, meths, ERROR_ME); | |
| 1319 } | |
| 1320 | |
| 1321 DEFUN ("valid-spec-list-p", Fvalid_spec_list_p, 2, 2, 0, /* | |
| 1322 Return non-nil if SPEC-LIST is valid for specifier type TYPE. | |
| 1323 */ | |
| 1324 (spec_list, type)) | |
| 1325 { | |
| 1326 struct specifier_methods *meths = decode_specifier_type (type, ERROR_ME); | |
| 1327 | |
| 1328 return check_valid_spec_list (spec_list, meths, ERROR_ME_NOT); | |
| 1329 } | |
| 1330 | |
| 1331 enum spec_add_meth | |
| 1332 decode_how_to_add_specification (Lisp_Object how_to_add) | |
| 1333 { | |
| 1334 if (NILP (how_to_add) || EQ (Qremove_tag_set_prepend, how_to_add)) | |
| 1335 return SPEC_REMOVE_TAG_SET_PREPEND; | |
| 1336 if (EQ (Qremove_tag_set_append, how_to_add)) | |
| 1337 return SPEC_REMOVE_TAG_SET_APPEND; | |
| 1338 if (EQ (Qappend, how_to_add)) | |
| 1339 return SPEC_APPEND; | |
| 1340 if (EQ (Qprepend, how_to_add)) | |
| 1341 return SPEC_PREPEND; | |
| 1342 if (EQ (Qremove_locale, how_to_add)) | |
| 1343 return SPEC_REMOVE_LOCALE; | |
| 1344 if (EQ (Qremove_locale_type, how_to_add)) | |
| 1345 return SPEC_REMOVE_LOCALE_TYPE; | |
| 1346 if (EQ (Qremove_all, how_to_add)) | |
| 1347 return SPEC_REMOVE_ALL; | |
| 1348 | |
| 563 | 1349 invalid_constant ("Invalid `how-to-add' flag", how_to_add); |
| 428 | 1350 |
| 1204 | 1351 RETURN_NOT_REACHED (SPEC_PREPEND); |
| 428 | 1352 } |
| 1353 | |
| 1354 /* Given a specifier object SPEC, return bodily specifier if SPEC is a | |
| 1355 ghost specifier, otherwise return the object itself | |
| 1356 */ | |
| 1357 static Lisp_Object | |
| 1358 bodily_specifier (Lisp_Object spec) | |
| 1359 { | |
| 1360 return (GHOST_SPECIFIER_P (XSPECIFIER (spec)) | |
| 1361 ? XSPECIFIER(spec)->magic_parent : spec); | |
| 1362 } | |
| 1363 | |
| 1364 /* Signal error if (specifier SPEC is read-only. | |
| 1365 Read only are ghost specifiers unless Vunlock_ghost_specifiers is | |
| 1366 non-nil. All other specifiers are read-write. | |
| 1367 */ | |
| 1368 static void | |
| 1369 check_modifiable_specifier (Lisp_Object spec) | |
| 1370 { | |
| 1371 if (NILP (Vunlock_ghost_specifiers) | |
| 1372 && GHOST_SPECIFIER_P (XSPECIFIER (spec))) | |
| 563 | 1373 signal_error (Qsetting_constant, |
| 1374 "Attempt to modify read-only specifier", | |
| 1375 spec); | |
| 428 | 1376 } |
| 1377 | |
| 1378 int | |
| 1379 unlock_ghost_specifiers_protected (void) | |
| 1380 { | |
| 853 | 1381 return internal_bind_lisp_object (&Vunlock_ghost_specifiers, Qt); |
| 428 | 1382 } |
| 1383 | |
| 1384 /* This gets hit so much that the function call overhead had a | |
| 1385 measurable impact (according to Quantify). #### We should figure | |
| 1386 out the frequency with which this is called with the various types | |
| 1387 and reorder the check accordingly. */ | |
| 1388 #define SPECIFIER_GET_SPEC_LIST(specifier, type) \ | |
| 1389 (type == LOCALE_GLOBAL ? &(XSPECIFIER (specifier)->global_specs) : \ | |
| 1390 type == LOCALE_DEVICE ? &(XSPECIFIER (specifier)->device_specs) : \ | |
| 1391 type == LOCALE_FRAME ? &(XSPECIFIER (specifier)->frame_specs) : \ | |
| 1392 type == LOCALE_WINDOW ? &(XWEAK_LIST_LIST \ | |
| 1393 (XSPECIFIER (specifier)->window_specs)) : \ | |
| 1394 type == LOCALE_BUFFER ? &(XSPECIFIER (specifier)->buffer_specs) : \ | |
| 1395 0) | |
| 1396 | |
| 1397 static Lisp_Object * | |
| 1398 specifier_get_inst_list (Lisp_Object specifier, Lisp_Object locale, | |
| 1399 enum spec_locale_type type) | |
| 1400 { | |
| 1401 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type); | |
| 1402 Lisp_Object specification; | |
| 1403 | |
| 1404 if (type == LOCALE_GLOBAL) | |
| 1405 return spec_list; | |
| 1406 /* Calling assq_no_quit when it is just going to return nil anyhow | |
| 1407 is extremely expensive. So sayeth Quantify. */ | |
| 1408 if (!CONSP (*spec_list)) | |
| 1409 return 0; | |
| 1410 specification = assq_no_quit (locale, *spec_list); | |
| 1411 if (NILP (specification)) | |
| 1412 return 0; | |
| 1413 return &XCDR (specification); | |
| 1414 } | |
| 1415 | |
| 1416 /* For the given INST_LIST, return a new INST_LIST containing all elements | |
| 1417 where TAG-SET matches the element's tag set. EXACT_P indicates whether | |
| 1418 the match must be exact (as opposed to a subset). SHORT_P indicates | |
| 1419 that the short form (for `specifier-specs') should be returned if | |
| 1420 possible. If COPY_TREE_P, `copy-tree' is used to ensure that no | |
| 1421 elements of the new list are shared with the initial list. | |
| 1422 */ | |
| 1423 | |
| 1424 static Lisp_Object | |
| 1425 specifier_process_inst_list (Lisp_Object inst_list, | |
| 1426 Lisp_Object tag_set, int exact_p, | |
| 1427 int short_p, int copy_tree_p) | |
| 1428 { | |
| 1429 Lisp_Object retval = Qnil; | |
| 1430 Lisp_Object rest; | |
| 1431 struct gcpro gcpro1; | |
| 1432 | |
| 1433 GCPRO1 (retval); | |
| 1434 LIST_LOOP (rest, inst_list) | |
| 1435 { | |
| 1436 Lisp_Object tagged_inst = XCAR (rest); | |
| 1437 Lisp_Object tagged_inst_tag = XCAR (tagged_inst); | |
| 1438 if (tag_sets_match_p (tag_set, tagged_inst_tag, exact_p)) | |
| 1439 { | |
| 1440 if (short_p && NILP (tagged_inst_tag)) | |
| 1441 retval = Fcons (copy_tree_p ? | |
| 1442 Fcopy_tree (XCDR (tagged_inst), Qt) : | |
| 1443 XCDR (tagged_inst), | |
| 1444 retval); | |
| 1445 else | |
| 1446 retval = Fcons (copy_tree_p ? Fcopy_tree (tagged_inst, Qt) : | |
| 1447 tagged_inst, retval); | |
| 1448 } | |
| 1449 } | |
| 1450 retval = Fnreverse (retval); | |
| 1451 UNGCPRO; | |
| 1452 /* If there is a single instantiator and the short form is | |
| 1453 requested, return just the instantiator (rather than a one-element | |
| 1454 list of it) unless it is nil (so that it can be distinguished from | |
| 1455 no instantiators at all). */ | |
| 1456 if (short_p && CONSP (retval) && !NILP (XCAR (retval)) && | |
| 1457 NILP (XCDR (retval))) | |
| 1458 return XCAR (retval); | |
| 1459 else | |
| 1460 return retval; | |
| 1461 } | |
| 1462 | |
| 1463 static Lisp_Object | |
| 1464 specifier_get_external_inst_list (Lisp_Object specifier, Lisp_Object locale, | |
| 1465 enum spec_locale_type type, | |
| 1466 Lisp_Object tag_set, int exact_p, | |
| 1467 int short_p, int copy_tree_p) | |
| 1468 { | |
| 1469 Lisp_Object *inst_list = specifier_get_inst_list (specifier, locale, | |
| 1470 type); | |
| 1471 if (!inst_list || NILP (*inst_list)) | |
| 1472 { | |
| 2953 | 1473 /* nil for *inst_list should only occur in `global' */ |
| 428 | 1474 assert (!inst_list || EQ (locale, Qglobal)); |
| 1475 return Qnil; | |
| 1476 } | |
| 1477 | |
| 1478 return specifier_process_inst_list (*inst_list, tag_set, exact_p, | |
| 1479 short_p, copy_tree_p); | |
| 1480 } | |
| 1481 | |
| 1482 static Lisp_Object | |
| 1483 specifier_get_external_spec_list (Lisp_Object specifier, | |
| 1484 enum spec_locale_type type, | |
| 1485 Lisp_Object tag_set, int exact_p) | |
| 1486 { | |
| 1487 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type); | |
| 1488 Lisp_Object retval = Qnil; | |
| 1489 Lisp_Object rest; | |
| 1490 struct gcpro gcpro1; | |
| 1491 | |
| 1492 assert (type != LOCALE_GLOBAL); | |
| 1493 /* We're about to let stuff go external; make sure there aren't | |
| 1494 any dead objects */ | |
| 1495 *spec_list = cleanup_assoc_list (*spec_list); | |
| 1496 | |
| 1497 GCPRO1 (retval); | |
| 1498 LIST_LOOP (rest, *spec_list) | |
| 1499 { | |
| 1500 Lisp_Object spec = XCAR (rest); | |
| 1501 Lisp_Object inst_list = | |
| 1502 specifier_process_inst_list (XCDR (spec), tag_set, exact_p, 0, 1); | |
| 1503 if (!NILP (inst_list)) | |
| 1504 retval = Fcons (Fcons (XCAR (spec), inst_list), retval); | |
| 1505 } | |
| 1506 RETURN_UNGCPRO (Fnreverse (retval)); | |
| 1507 } | |
| 1508 | |
| 1509 static Lisp_Object * | |
| 1510 specifier_new_spec (Lisp_Object specifier, Lisp_Object locale, | |
| 1511 enum spec_locale_type type) | |
| 1512 { | |
| 1513 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type); | |
| 1514 Lisp_Object new_spec = Fcons (locale, Qnil); | |
| 1515 assert (type != LOCALE_GLOBAL); | |
| 1516 *spec_list = Fcons (new_spec, *spec_list); | |
| 1517 return &XCDR (new_spec); | |
| 1518 } | |
| 1519 | |
| 1520 /* For the given INST_LIST, return a new list comprised of elements | |
| 1521 where TAG_SET does not match the element's tag set. This operation | |
| 1522 is destructive. */ | |
| 1523 | |
| 1524 static Lisp_Object | |
| 1525 specifier_process_remove_inst_list (Lisp_Object inst_list, | |
| 1526 Lisp_Object tag_set, int exact_p, | |
| 1527 int *was_removed) | |
| 1528 { | |
| 1529 Lisp_Object prev = Qnil, rest; | |
| 1530 | |
| 1531 *was_removed = 0; | |
| 1532 | |
| 1533 LIST_LOOP (rest, inst_list) | |
| 1534 { | |
| 1535 if (tag_sets_match_p (tag_set, XCAR (XCAR (rest)), exact_p)) | |
| 1536 { | |
| 1537 /* time to remove. */ | |
| 1538 *was_removed = 1; | |
| 1539 if (NILP (prev)) | |
| 1540 inst_list = XCDR (rest); | |
| 1541 else | |
| 1542 XCDR (prev) = XCDR (rest); | |
| 1543 } | |
| 1544 else | |
| 1545 prev = rest; | |
| 1546 } | |
| 1547 | |
| 1548 return inst_list; | |
| 1549 } | |
| 1550 | |
| 1551 static void | |
| 1552 specifier_remove_spec (Lisp_Object specifier, Lisp_Object locale, | |
| 1553 enum spec_locale_type type, | |
| 1554 Lisp_Object tag_set, int exact_p) | |
| 1555 { | |
| 1556 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type); | |
| 1557 Lisp_Object assoc; | |
| 1558 int was_removed; | |
| 1559 | |
| 1560 if (type == LOCALE_GLOBAL) | |
| 1561 *spec_list = specifier_process_remove_inst_list (*spec_list, tag_set, | |
| 1562 exact_p, &was_removed); | |
| 1563 else | |
| 1564 { | |
| 1565 assoc = assq_no_quit (locale, *spec_list); | |
| 1566 if (NILP (assoc)) | |
| 1567 /* this locale is not found. */ | |
| 1568 return; | |
| 1569 XCDR (assoc) = specifier_process_remove_inst_list (XCDR (assoc), | |
| 1570 tag_set, exact_p, | |
| 1571 &was_removed); | |
| 1572 if (NILP (XCDR (assoc))) | |
| 1573 /* no inst-pairs left; remove this locale entirely. */ | |
| 1574 *spec_list = remassq_no_quit (locale, *spec_list); | |
| 1575 } | |
| 1576 | |
| 1577 if (was_removed) | |
| 1578 MAYBE_SPECMETH (XSPECIFIER (specifier), after_change, | |
| 1579 (bodily_specifier (specifier), locale)); | |
| 1580 } | |
| 1581 | |
| 1582 static void | |
| 1583 specifier_remove_locale_type (Lisp_Object specifier, | |
| 1584 enum spec_locale_type type, | |
| 1585 Lisp_Object tag_set, int exact_p) | |
| 1586 { | |
| 1587 Lisp_Object *spec_list = SPECIFIER_GET_SPEC_LIST (specifier, type); | |
| 1588 Lisp_Object prev = Qnil, rest; | |
| 1589 | |
| 1590 assert (type != LOCALE_GLOBAL); | |
| 1591 LIST_LOOP (rest, *spec_list) | |
| 1592 { | |
| 1593 int was_removed; | |
| 1594 int remove_spec = 0; | |
| 1595 Lisp_Object spec = XCAR (rest); | |
| 1596 | |
| 1597 /* There may be dead objects floating around */ | |
| 1598 /* remember, dead windows can become alive again. */ | |
| 1599 if (!WINDOWP (XCAR (spec)) && object_dead_p (XCAR (spec))) | |
| 1600 { | |
| 1601 remove_spec = 1; | |
| 1602 was_removed = 0; | |
| 1603 } | |
| 1604 else | |
| 1605 { | |
| 1606 XCDR (spec) = specifier_process_remove_inst_list (XCDR (spec), | |
| 1607 tag_set, exact_p, | |
| 1608 &was_removed); | |
| 1609 if (NILP (XCDR (spec))) | |
| 1610 remove_spec = 1; | |
| 1611 } | |
| 1612 | |
| 1613 if (remove_spec) | |
| 1614 { | |
| 1615 if (NILP (prev)) | |
| 1616 *spec_list = XCDR (rest); | |
| 1617 else | |
| 1618 XCDR (prev) = XCDR (rest); | |
| 1619 } | |
| 1620 else | |
| 1621 prev = rest; | |
| 1622 | |
| 1623 if (was_removed) | |
| 1624 MAYBE_SPECMETH (XSPECIFIER (specifier), after_change, | |
| 1625 (bodily_specifier (specifier), XCAR (spec))); | |
| 1626 } | |
| 1627 } | |
| 1628 | |
| 1629 /* NEW_LIST is going to be added to INST_LIST, with add method ADD_METH. | |
| 1630 Frob INST_LIST according to ADD_METH. No need to call an after-change | |
| 1631 function; the calling function will do this. Return either SPEC_PREPEND | |
| 1632 or SPEC_APPEND, indicating whether to prepend or append the NEW_LIST. */ | |
| 1633 | |
| 1634 static enum spec_add_meth | |
| 1635 handle_multiple_add_insts (Lisp_Object *inst_list, | |
| 1636 Lisp_Object new_list, | |
| 1637 enum spec_add_meth add_meth) | |
| 1638 { | |
| 1639 switch (add_meth) | |
| 1640 { | |
| 1641 case SPEC_REMOVE_TAG_SET_APPEND: | |
| 1642 add_meth = SPEC_APPEND; | |
| 1643 goto remove_tag_set; | |
| 1644 case SPEC_REMOVE_TAG_SET_PREPEND: | |
| 1645 add_meth = SPEC_PREPEND; | |
| 1646 remove_tag_set: | |
| 1647 { | |
| 1648 Lisp_Object rest; | |
| 1649 | |
| 1650 LIST_LOOP (rest, new_list) | |
| 1651 { | |
| 1652 Lisp_Object canontag = canonicalize_tag_set (XCAR (XCAR (rest))); | |
| 1653 struct gcpro gcpro1; | |
| 1654 | |
| 1655 GCPRO1 (canontag); | |
| 1656 /* pull out all elements from the existing list with the | |
| 1657 same tag as any tags in NEW_LIST. */ | |
| 1658 *inst_list = remassoc_no_quit (canontag, *inst_list); | |
| 1659 UNGCPRO; | |
| 1660 } | |
| 1661 } | |
| 1662 return add_meth; | |
| 1663 case SPEC_REMOVE_LOCALE: | |
| 1664 *inst_list = Qnil; | |
| 1665 return SPEC_PREPEND; | |
| 1666 case SPEC_APPEND: | |
| 1667 return add_meth; | |
| 1668 default: | |
| 1669 return SPEC_PREPEND; | |
| 1670 } | |
| 1671 } | |
| 1672 | |
| 1673 /* Given a LOCALE and INST_LIST that is going to be added to SPECIFIER, | |
| 1674 copy, canonicalize, and call the going_to_add methods as necessary | |
| 1675 to produce a new list that is the one that really will be added | |
| 1676 to the specifier. */ | |
| 1677 | |
| 1678 static Lisp_Object | |
| 1679 build_up_processed_list (Lisp_Object specifier, Lisp_Object locale, | |
| 1680 Lisp_Object inst_list) | |
| 1681 { | |
| 1682 /* The return value of this function must be GCPRO'd. */ | |
| 1683 Lisp_Object rest, list_to_build_up = Qnil; | |
| 440 | 1684 Lisp_Specifier *sp = XSPECIFIER (specifier); |
| 428 | 1685 struct gcpro gcpro1; |
| 1686 | |
| 1687 GCPRO1 (list_to_build_up); | |
| 1688 LIST_LOOP (rest, inst_list) | |
| 1689 { | |
| 1690 Lisp_Object tag_set = XCAR (XCAR (rest)); | |
| 1691 Lisp_Object sub_inst_list = Qnil; | |
| 434 | 1692 Lisp_Object instantiator; |
| 428 | 1693 struct gcpro ngcpro1, ngcpro2; |
| 1694 | |
| 434 | 1695 if (HAS_SPECMETH_P (sp, copy_instantiator)) |
| 1696 instantiator = SPECMETH (sp, copy_instantiator, | |
| 1697 (XCDR (XCAR (rest)))); | |
| 1698 else | |
| 1699 instantiator = Fcopy_tree (XCDR (XCAR (rest)), Qt); | |
| 1700 | |
| 428 | 1701 NGCPRO2 (instantiator, sub_inst_list); |
| 1702 /* call the will-add method; it may GC */ | |
| 1703 sub_inst_list = HAS_SPECMETH_P (sp, going_to_add) ? | |
| 1704 SPECMETH (sp, going_to_add, | |
| 1705 (bodily_specifier (specifier), locale, | |
| 1706 tag_set, instantiator)) : | |
| 1707 Qt; | |
| 1708 if (EQ (sub_inst_list, Qt)) | |
| 1709 /* no change here. */ | |
| 1710 sub_inst_list = list1 (Fcons (canonicalize_tag_set (tag_set), | |
| 1711 instantiator)); | |
| 1712 else | |
| 1713 { | |
| 1714 /* now canonicalize all the tag sets in the new objects */ | |
| 1715 Lisp_Object rest2; | |
| 1716 LIST_LOOP (rest2, sub_inst_list) | |
| 1717 XCAR (XCAR (rest2)) = canonicalize_tag_set (XCAR (XCAR (rest2))); | |
| 1718 } | |
| 1719 | |
| 1720 list_to_build_up = nconc2 (sub_inst_list, list_to_build_up); | |
| 1721 NUNGCPRO; | |
| 1722 } | |
| 1723 | |
| 1724 RETURN_UNGCPRO (Fnreverse (list_to_build_up)); | |
| 1725 } | |
| 1726 | |
| 1727 /* Add a specification (locale and instantiator list) to a specifier. | |
| 1728 ADD_METH specifies what to do with existing specifications in the | |
| 1729 specifier, and is an enum that corresponds to the values in | |
| 1730 `add-spec-to-specifier'. The calling routine is responsible for | |
| 1731 validating LOCALE and INST-LIST, but the tag-sets in INST-LIST | |
| 1732 do not need to be canonicalized. */ | |
| 1733 | |
| 1734 /* #### I really need to rethink the after-change | |
| 1735 functions to make them easier to use and more efficient. */ | |
| 1736 | |
| 1737 static void | |
| 1738 specifier_add_spec (Lisp_Object specifier, Lisp_Object locale, | |
| 1739 Lisp_Object inst_list, enum spec_add_meth add_meth) | |
| 1740 { | |
| 440 | 1741 Lisp_Specifier *sp = XSPECIFIER (specifier); |
| 428 | 1742 enum spec_locale_type type = locale_type_from_locale (locale); |
| 1743 Lisp_Object *orig_inst_list, tem; | |
| 1744 Lisp_Object list_to_build_up = Qnil; | |
| 1745 struct gcpro gcpro1; | |
| 1746 | |
| 1015 | 1747 if (NILP (inst_list)) |
| 1748 return; | |
| 1749 | |
| 428 | 1750 GCPRO1 (list_to_build_up); |
| 1751 list_to_build_up = build_up_processed_list (specifier, locale, inst_list); | |
| 1752 /* Now handle REMOVE_LOCALE_TYPE and REMOVE_ALL. These are the | |
| 1753 add-meth types that affect locales other than this one. */ | |
| 1754 if (add_meth == SPEC_REMOVE_LOCALE_TYPE) | |
| 1755 specifier_remove_locale_type (specifier, type, Qnil, 0); | |
| 1756 else if (add_meth == SPEC_REMOVE_ALL) | |
| 1757 { | |
| 1758 specifier_remove_locale_type (specifier, LOCALE_BUFFER, Qnil, 0); | |
| 1759 specifier_remove_locale_type (specifier, LOCALE_WINDOW, Qnil, 0); | |
| 1760 specifier_remove_locale_type (specifier, LOCALE_FRAME, Qnil, 0); | |
| 1761 specifier_remove_locale_type (specifier, LOCALE_DEVICE, Qnil, 0); | |
| 1762 specifier_remove_spec (specifier, Qglobal, LOCALE_GLOBAL, Qnil, 0); | |
| 1763 } | |
| 1764 | |
| 1765 orig_inst_list = specifier_get_inst_list (specifier, locale, type); | |
| 1766 if (!orig_inst_list) | |
| 1767 orig_inst_list = specifier_new_spec (specifier, locale, type); | |
| 1768 add_meth = handle_multiple_add_insts (orig_inst_list, list_to_build_up, | |
| 1769 add_meth); | |
| 1770 | |
| 1771 if (add_meth == SPEC_PREPEND) | |
| 1772 tem = nconc2 (list_to_build_up, *orig_inst_list); | |
| 1773 else if (add_meth == SPEC_APPEND) | |
| 1774 tem = nconc2 (*orig_inst_list, list_to_build_up); | |
| 1775 else | |
| 442 | 1776 { |
| 2500 | 1777 ABORT (); |
| 442 | 1778 tem = Qnil; |
| 1779 } | |
| 428 | 1780 |
| 1781 *orig_inst_list = tem; | |
| 1782 | |
| 1783 UNGCPRO; | |
| 1784 | |
| 1785 /* call the after-change method */ | |
| 1786 MAYBE_SPECMETH (sp, after_change, | |
| 1787 (bodily_specifier (specifier), locale)); | |
| 1788 } | |
| 1789 | |
| 1790 static void | |
| 1791 specifier_copy_spec (Lisp_Object specifier, Lisp_Object dest, | |
| 1792 Lisp_Object locale, enum spec_locale_type type, | |
| 1793 Lisp_Object tag_set, int exact_p, | |
| 1794 enum spec_add_meth add_meth) | |
| 1795 { | |
| 1796 Lisp_Object inst_list = | |
| 1797 specifier_get_external_inst_list (specifier, locale, type, tag_set, | |
| 1798 exact_p, 0, 0); | |
| 1799 specifier_add_spec (dest, locale, inst_list, add_meth); | |
| 1800 } | |
| 1801 | |
| 1802 static void | |
| 1803 specifier_copy_locale_type (Lisp_Object specifier, Lisp_Object dest, | |
| 1804 enum spec_locale_type type, | |
| 1805 Lisp_Object tag_set, int exact_p, | |
| 1806 enum spec_add_meth add_meth) | |
| 1807 { | |
| 1808 Lisp_Object *src_list = SPECIFIER_GET_SPEC_LIST (specifier, type); | |
| 1809 Lisp_Object rest; | |
| 1810 | |
| 1811 /* This algorithm is O(n^2) in running time. | |
| 1812 It's certainly possible to implement an O(n log n) algorithm, | |
| 1813 but I doubt there's any need to. */ | |
| 1814 | |
| 1815 LIST_LOOP (rest, *src_list) | |
| 1816 { | |
| 1817 Lisp_Object spec = XCAR (rest); | |
| 1818 /* There may be dead objects floating around */ | |
| 1819 /* remember, dead windows can become alive again. */ | |
| 1820 if (WINDOWP (XCAR (spec)) || !object_dead_p (XCAR (spec))) | |
| 1821 specifier_add_spec | |
| 1822 (dest, XCAR (spec), | |
| 1823 specifier_process_inst_list (XCDR (spec), tag_set, exact_p, 0, 0), | |
| 1824 add_meth); | |
| 1825 } | |
| 1826 } | |
| 1827 | |
| 1828 /* map MAPFUN over the locales in SPECIFIER that are given in LOCALE. | |
| 1829 CLOSURE is passed unchanged to MAPFUN. LOCALE can be one of | |
| 1830 | |
| 2953 | 1831 -- nil (same as `all') |
| 1832 -- a single locale, locale type, or `all' | |
| 1833 -- a list of locales, locale types, and/or `all' | |
| 1834 | |
| 1835 MAPFUN is called for each locale and locale type given; for `all', | |
| 1836 it is called for the locale `global' and for the four possible | |
| 428 | 1837 locale types. In each invocation, either LOCALE will be a locale |
| 1838 and LOCALE_TYPE will be the locale type of this locale, | |
| 1839 or LOCALE will be nil and LOCALE_TYPE will be a locale type. | |
| 1840 If MAPFUN ever returns non-zero, the mapping is halted and the | |
| 1841 value returned is returned from map_specifier(). Otherwise, the | |
| 1842 mapping proceeds to the end and map_specifier() returns 0. | |
| 1843 */ | |
| 1844 | |
| 1845 static int | |
| 1846 map_specifier (Lisp_Object specifier, Lisp_Object locale, | |
| 1847 int (*mapfun) (Lisp_Object specifier, | |
| 1848 Lisp_Object locale, | |
| 1849 enum spec_locale_type locale_type, | |
| 1850 Lisp_Object tag_set, | |
| 1851 int exact_p, | |
| 1852 void *closure), | |
| 1853 Lisp_Object tag_set, Lisp_Object exact_p, | |
| 1854 void *closure) | |
| 1855 { | |
| 1856 int retval = 0; | |
| 1857 Lisp_Object rest; | |
| 1858 struct gcpro gcpro1, gcpro2; | |
| 1859 | |
| 1860 GCPRO2 (tag_set, locale); | |
| 1861 locale = decode_locale_list (locale); | |
| 1862 tag_set = decode_specifier_tag_set (tag_set); | |
| 1863 tag_set = canonicalize_tag_set (tag_set); | |
| 1864 | |
| 1865 LIST_LOOP (rest, locale) | |
| 1866 { | |
| 1867 Lisp_Object theloc = XCAR (rest); | |
| 1868 if (!NILP (Fvalid_specifier_locale_p (theloc))) | |
| 1869 { | |
| 1870 retval = (*mapfun) (specifier, theloc, | |
| 1871 locale_type_from_locale (theloc), | |
| 1872 tag_set, !NILP (exact_p), closure); | |
| 1873 if (retval) | |
| 1874 break; | |
| 1875 } | |
| 1876 else if (!NILP (Fvalid_specifier_locale_type_p (theloc))) | |
| 1877 { | |
| 1878 retval = (*mapfun) (specifier, Qnil, | |
| 1879 decode_locale_type (theloc), tag_set, | |
| 1880 !NILP (exact_p), closure); | |
| 1881 if (retval) | |
| 1882 break; | |
| 1883 } | |
| 1884 else | |
| 1885 { | |
| 1886 assert (EQ (theloc, Qall)); | |
| 1887 retval = (*mapfun) (specifier, Qnil, LOCALE_BUFFER, tag_set, | |
| 1888 !NILP (exact_p), closure); | |
| 1889 if (retval) | |
| 1890 break; | |
| 1891 retval = (*mapfun) (specifier, Qnil, LOCALE_WINDOW, tag_set, | |
| 1892 !NILP (exact_p), closure); | |
| 1893 if (retval) | |
| 1894 break; | |
| 1895 retval = (*mapfun) (specifier, Qnil, LOCALE_FRAME, tag_set, | |
| 1896 !NILP (exact_p), closure); | |
| 1897 if (retval) | |
| 1898 break; | |
| 1899 retval = (*mapfun) (specifier, Qnil, LOCALE_DEVICE, tag_set, | |
| 1900 !NILP (exact_p), closure); | |
| 1901 if (retval) | |
| 1902 break; | |
| 1903 retval = (*mapfun) (specifier, Qglobal, LOCALE_GLOBAL, tag_set, | |
| 1904 !NILP (exact_p), closure); | |
| 1905 if (retval) | |
| 1906 break; | |
| 1907 } | |
| 1908 } | |
| 1909 | |
| 1910 UNGCPRO; | |
| 1911 return retval; | |
| 1912 } | |
| 1913 | |
| 1914 DEFUN ("add-spec-to-specifier", Fadd_spec_to_specifier, 2, 5, 0, /* | |
| 1915 Add a specification to SPECIFIER. | |
| 1916 The specification maps from LOCALE (which should be a window, buffer, | |
| 2953 | 1917 frame, device, or `global', and defaults to `global') to INSTANTIATOR, |
| 428 | 1918 whose allowed values depend on the type of the specifier. Optional |
| 1919 argument TAG-SET limits the instantiator to apply only to the specified | |
| 1920 tag set, which should be a list of tags all of which must match the | |
| 1921 device being instantiated over (tags are a device type, a device class, | |
| 1922 or tags defined with `define-specifier-tag'). Specifying a single | |
| 1923 symbol for TAG-SET is equivalent to specifying a one-element list | |
| 1924 containing that symbol. Optional argument HOW-TO-ADD specifies what to | |
| 1925 do if there are already specifications in the specifier. | |
| 1926 It should be one of | |
| 1927 | |
| 2953 | 1928 `prepend' Put at the beginning of the current list of |
| 428 | 1929 instantiators for LOCALE. |
| 2953 | 1930 `append' Add to the end of the current list of |
| 428 | 1931 instantiators for LOCALE. |
| 2953 | 1932 `remove-tag-set-prepend' (this is the default) |
| 428 | 1933 Remove any existing instantiators whose tag set is |
| 1934 the same as TAG-SET; then put the new instantiator | |
| 1935 at the beginning of the current list. ("Same tag | |
| 1936 set" means that they contain the same elements. | |
| 1937 The order may be different.) | |
| 2953 | 1938 `remove-tag-set-append' |
| 428 | 1939 Remove any existing instantiators whose tag set is |
| 1940 the same as TAG-SET; then put the new instantiator | |
| 1941 at the end of the current list. | |
| 2953 | 1942 `remove-locale' Remove all previous instantiators for this locale |
| 428 | 1943 before adding the new spec. |
| 2953 | 1944 `remove-locale-type' Remove all specifications for all locales of the |
| 428 | 1945 same type as LOCALE (this includes LOCALE itself) |
| 1946 before adding the new spec. | |
| 2953 | 1947 `remove-all' Remove all specifications from the specifier |
| 428 | 1948 before adding the new spec. |
| 1949 | |
| 1950 You can retrieve the specifications for a particular locale or locale type | |
| 1951 with the function `specifier-spec-list' or `specifier-specs'. | |
| 1952 */ | |
| 1953 (specifier, instantiator, locale, tag_set, how_to_add)) | |
| 1954 { | |
| 1955 enum spec_add_meth add_meth; | |
| 1956 Lisp_Object inst_list; | |
| 1957 struct gcpro gcpro1; | |
| 1958 | |
| 1959 CHECK_SPECIFIER (specifier); | |
| 1960 check_modifiable_specifier (specifier); | |
| 1961 | |
| 1962 locale = decode_locale (locale); | |
| 1963 check_valid_instantiator (instantiator, | |
| 1964 decode_specifier_type | |
| 1965 (Fspecifier_type (specifier), ERROR_ME), | |
| 1966 ERROR_ME); | |
| 1967 /* tag_set might be newly-created material, but it's part of inst_list | |
| 1968 so is properly GC-protected. */ | |
| 1969 tag_set = decode_specifier_tag_set (tag_set); | |
| 1970 add_meth = decode_how_to_add_specification (how_to_add); | |
| 1971 | |
| 1972 inst_list = list1 (Fcons (tag_set, instantiator)); | |
| 1973 GCPRO1 (inst_list); | |
| 1974 specifier_add_spec (specifier, locale, inst_list, add_meth); | |
| 1975 recompute_cached_specifier_everywhere (specifier); | |
| 1976 RETURN_UNGCPRO (Qnil); | |
| 1977 } | |
| 1978 | |
| 1979 DEFUN ("add-spec-list-to-specifier", Fadd_spec_list_to_specifier, 2, 3, 0, /* | |
| 444 | 1980 Add SPEC-LIST (a list of specifications) to SPECIFIER. |
| 1981 The format of SPEC-LIST is | |
| 428 | 1982 |
| 1983 ((LOCALE (TAG-SET . INSTANTIATOR) ...) ...) | |
| 1984 | |
| 1985 where | |
| 2953 | 1986 LOCALE := a window, a buffer, a frame, a device, or `global' |
| 428 | 1987 TAG-SET := an unordered list of zero or more TAGS, each of which |
| 1988 is a symbol | |
| 1989 TAG := a device class (see `valid-device-class-p'), a device type | |
| 1990 (see `valid-console-type-p'), or a tag defined with | |
| 1991 `define-specifier-tag' | |
| 1992 INSTANTIATOR := format determined by the type of specifier | |
| 1993 | |
| 1994 The pair (TAG-SET . INSTANTIATOR) is called an `inst-pair'. | |
| 1995 A list of inst-pairs is called an `inst-list'. | |
| 1996 The pair (LOCALE . INST-LIST) is called a `specification' or `spec'. | |
| 1997 A spec-list, then, can be viewed as a list of specifications. | |
| 1998 | |
| 1999 HOW-TO-ADD specifies how to combine the new specifications with | |
| 2000 the existing ones, and has the same semantics as for | |
| 2001 `add-spec-to-specifier'. | |
| 2002 | |
| 2003 In many circumstances, the higher-level function `set-specifier' is | |
| 2004 more convenient and should be used instead. | |
| 2005 */ | |
| 2006 (specifier, spec_list, how_to_add)) | |
| 2007 { | |
| 2008 enum spec_add_meth add_meth; | |
| 2009 Lisp_Object rest; | |
| 2010 | |
| 2011 CHECK_SPECIFIER (specifier); | |
| 2012 check_modifiable_specifier (specifier); | |
| 2013 | |
| 2014 check_valid_spec_list (spec_list, | |
| 2015 decode_specifier_type | |
| 2016 (Fspecifier_type (specifier), ERROR_ME), | |
| 2017 ERROR_ME); | |
| 2018 add_meth = decode_how_to_add_specification (how_to_add); | |
| 2019 | |
| 2020 LIST_LOOP (rest, spec_list) | |
| 2021 { | |
| 2022 /* Placating the GCC god. */ | |
| 2023 Lisp_Object specification = XCAR (rest); | |
| 2024 Lisp_Object locale = XCAR (specification); | |
| 2025 Lisp_Object inst_list = XCDR (specification); | |
| 2026 | |
| 2027 specifier_add_spec (specifier, locale, inst_list, add_meth); | |
| 2028 } | |
| 2029 recompute_cached_specifier_everywhere (specifier); | |
| 2030 return Qnil; | |
| 2031 } | |
| 2032 | |
| 2033 void | |
| 2034 add_spec_to_ghost_specifier (Lisp_Object specifier, Lisp_Object instantiator, | |
| 2035 Lisp_Object locale, Lisp_Object tag_set, | |
| 2036 Lisp_Object how_to_add) | |
| 2037 { | |
| 2038 int depth = unlock_ghost_specifiers_protected (); | |
| 2039 Fadd_spec_to_specifier (XSPECIFIER(specifier)->fallback, | |
| 2040 instantiator, locale, tag_set, how_to_add); | |
| 771 | 2041 unbind_to (depth); |
| 428 | 2042 } |
| 2043 | |
| 2044 struct specifier_spec_list_closure | |
| 2045 { | |
| 2046 Lisp_Object head, tail; | |
| 2047 }; | |
| 2048 | |
| 2049 static int | |
| 2050 specifier_spec_list_mapfun (Lisp_Object specifier, | |
| 2051 Lisp_Object locale, | |
| 2052 enum spec_locale_type locale_type, | |
| 2053 Lisp_Object tag_set, | |
| 2054 int exact_p, | |
| 2055 void *closure) | |
| 2056 { | |
| 2057 struct specifier_spec_list_closure *cl = | |
| 2058 (struct specifier_spec_list_closure *) closure; | |
| 2059 Lisp_Object partial; | |
| 2060 | |
| 2061 if (NILP (locale)) | |
| 2062 partial = specifier_get_external_spec_list (specifier, | |
| 2063 locale_type, | |
| 2064 tag_set, exact_p); | |
| 2065 else | |
| 2066 { | |
| 2067 partial = specifier_get_external_inst_list (specifier, locale, | |
| 2068 locale_type, tag_set, | |
| 2069 exact_p, 0, 1); | |
| 2070 if (!NILP (partial)) | |
| 2071 partial = list1 (Fcons (locale, partial)); | |
| 2072 } | |
| 2073 if (NILP (partial)) | |
| 2074 return 0; | |
| 2075 | |
| 2076 /* tack on the new list */ | |
| 2077 if (NILP (cl->tail)) | |
| 2078 cl->head = cl->tail = partial; | |
| 2079 else | |
| 2080 XCDR (cl->tail) = partial; | |
| 2081 /* find the new tail */ | |
| 2082 while (CONSP (XCDR (cl->tail))) | |
| 2083 cl->tail = XCDR (cl->tail); | |
| 2084 return 0; | |
| 2085 } | |
| 2086 | |
| 2087 /* For the given SPECIFIER create and return a list of all specs | |
| 2088 contained within it, subject to LOCALE. If LOCALE is a locale, only | |
| 2089 specs in that locale will be returned. If LOCALE is a locale type, | |
| 2090 all specs in all locales of that type will be returned. If LOCALE is | |
| 2091 nil, all specs will be returned. This always copies lists and never | |
| 2092 returns the actual lists, because we do not want someone manipulating | |
| 2093 the actual objects. This may cause a slight loss of potential | |
| 2094 functionality but if we were to allow it then a user could manage to | |
| 2095 violate our assertion that the specs contained in the actual | |
| 2096 specifier lists are all valid. */ | |
| 2097 | |
| 2098 DEFUN ("specifier-spec-list", Fspecifier_spec_list, 1, 4, 0, /* | |
| 2099 Return the spec-list of specifications for SPECIFIER in LOCALE. | |
| 2100 | |
| 2101 If LOCALE is a particular locale (a buffer, window, frame, device, | |
| 2953 | 2102 or `global'), a spec-list consisting of the specification for that |
| 428 | 2103 locale will be returned. |
| 2104 | |
| 2953 | 2105 If LOCALE is a locale type (i.e. `buffer', `window', `frame', or `device'), |
| 428 | 2106 a spec-list of the specifications for all locales of that type will be |
| 2107 returned. | |
| 2108 | |
| 2953 | 2109 If LOCALE is nil or `all', a spec-list of all specifications in SPECIFIER |
| 428 | 2110 will be returned. |
| 2111 | |
| 2953 | 2112 LOCALE can also be a list of locales, locale types, and/or `all'; the |
| 428 | 2113 result is as if `specifier-spec-list' were called on each element of the |
| 2114 list and the results concatenated together. | |
| 2115 | |
| 2116 Only instantiators where TAG-SET (a list of zero or more tags) is a | |
| 2117 subset of (or possibly equal to) the instantiator's tag set are returned. | |
| 2118 \(The default value of nil is a subset of all tag sets, so in this case | |
| 2119 no instantiators will be screened out.) If EXACT-P is non-nil, however, | |
| 2120 TAG-SET must be equal to an instantiator's tag set for the instantiator | |
| 2121 to be returned. | |
| 2122 */ | |
| 2123 (specifier, locale, tag_set, exact_p)) | |
| 2124 { | |
| 2125 struct specifier_spec_list_closure cl; | |
| 2126 struct gcpro gcpro1, gcpro2; | |
| 2127 | |
| 2128 CHECK_SPECIFIER (specifier); | |
| 2129 cl.head = cl.tail = Qnil; | |
| 2130 GCPRO2 (cl.head, cl.tail); | |
| 2131 map_specifier (specifier, locale, specifier_spec_list_mapfun, | |
| 2132 tag_set, exact_p, &cl); | |
| 2133 UNGCPRO; | |
| 2134 return cl.head; | |
| 2135 } | |
| 2136 | |
| 2137 | |
| 2138 DEFUN ("specifier-specs", Fspecifier_specs, 1, 4, 0, /* | |
| 2139 Return the specification(s) for SPECIFIER in LOCALE. | |
| 2140 | |
| 2141 If LOCALE is a single locale or is a list of one element containing a | |
| 2142 single locale, then a "short form" of the instantiators for that locale | |
| 2143 will be returned. Otherwise, this function is identical to | |
| 2144 `specifier-spec-list'. | |
| 2145 | |
| 2146 The "short form" is designed for readability and not for ease of use | |
| 2147 in Lisp programs, and is as follows: | |
| 2148 | |
| 2149 1. If there is only one instantiator, then an inst-pair (i.e. cons of | |
| 2150 tag and instantiator) will be returned; otherwise a list of | |
| 2151 inst-pairs will be returned. | |
| 2953 | 2152 2. For each inst-pair returned, if the instantiator's tag is `any', |
| 428 | 2153 the tag will be removed and the instantiator itself will be returned |
| 2154 instead of the inst-pair. | |
| 2155 3. If there is only one instantiator, its value is nil, and its tag is | |
| 2953 | 2156 `any', a one-element list containing nil will be returned rather |
| 428 | 2157 than just nil, to distinguish this case from there being no |
| 2158 instantiators at all. | |
| 2159 */ | |
| 2160 (specifier, locale, tag_set, exact_p)) | |
| 2161 { | |
| 2162 if (!NILP (Fvalid_specifier_locale_p (locale)) || | |
| 2163 (CONSP (locale) && !NILP (Fvalid_specifier_locale_p (XCAR (locale))) && | |
| 2164 NILP (XCDR (locale)))) | |
| 2165 { | |
| 2166 struct gcpro gcpro1; | |
| 2167 | |
| 2168 CHECK_SPECIFIER (specifier); | |
| 2169 if (CONSP (locale)) | |
| 2170 locale = XCAR (locale); | |
| 2171 GCPRO1 (tag_set); | |
| 2172 tag_set = decode_specifier_tag_set (tag_set); | |
| 2173 tag_set = canonicalize_tag_set (tag_set); | |
| 2174 RETURN_UNGCPRO | |
| 2175 (specifier_get_external_inst_list (specifier, locale, | |
| 2176 locale_type_from_locale (locale), | |
| 2177 tag_set, !NILP (exact_p), 1, 1)); | |
| 2178 } | |
| 2179 else | |
| 2180 return Fspecifier_spec_list (specifier, locale, tag_set, exact_p); | |
| 2181 } | |
| 2182 | |
| 2183 static int | |
| 2184 remove_specifier_mapfun (Lisp_Object specifier, | |
| 2185 Lisp_Object locale, | |
| 2186 enum spec_locale_type locale_type, | |
| 2187 Lisp_Object tag_set, | |
| 2188 int exact_p, | |
| 2286 | 2189 void *UNUSED (closure)) |
| 428 | 2190 { |
| 2191 if (NILP (locale)) | |
| 2192 specifier_remove_locale_type (specifier, locale_type, tag_set, exact_p); | |
| 2193 else | |
| 2194 specifier_remove_spec (specifier, locale, locale_type, tag_set, exact_p); | |
| 2195 return 0; | |
| 2196 } | |
| 2197 | |
| 2198 DEFUN ("remove-specifier", Fremove_specifier, 1, 4, 0, /* | |
| 2199 Remove specification(s) for SPECIFIER. | |
| 2200 | |
| 2201 If LOCALE is a particular locale (a window, buffer, frame, device, | |
| 2953 | 2202 or `global'), the specification for that locale will be removed. |
| 2203 | |
| 2204 If instead, LOCALE is a locale type (i.e. `window', `buffer', `frame', | |
| 2205 or `device'), the specifications for all locales of that type will be | |
| 428 | 2206 removed. |
| 2207 | |
| 2953 | 2208 If LOCALE is nil or `all', all specifications will be removed. |
| 2209 | |
| 2210 LOCALE can also be a list of locales, locale types, and/or `all'; this | |
| 428 | 2211 is equivalent to calling `remove-specifier' for each of the elements |
| 2212 in the list. | |
| 2213 | |
| 2214 Only instantiators where TAG-SET (a list of zero or more tags) is a | |
| 2215 subset of (or possibly equal to) the instantiator's tag set are removed. | |
| 2216 The default value of nil is a subset of all tag sets, so in this case | |
| 2217 no instantiators will be screened out. If EXACT-P is non-nil, however, | |
| 2218 TAG-SET must be equal to an instantiator's tag set for the instantiator | |
| 2219 to be removed. | |
| 2220 */ | |
| 2221 (specifier, locale, tag_set, exact_p)) | |
| 2222 { | |
| 2223 CHECK_SPECIFIER (specifier); | |
| 2224 check_modifiable_specifier (specifier); | |
| 2225 | |
| 2226 map_specifier (specifier, locale, remove_specifier_mapfun, | |
| 2227 tag_set, exact_p, 0); | |
| 2228 recompute_cached_specifier_everywhere (specifier); | |
| 2229 return Qnil; | |
| 2230 } | |
| 2231 | |
| 2232 void | |
| 2233 remove_ghost_specifier (Lisp_Object specifier, Lisp_Object locale, | |
| 2234 Lisp_Object tag_set, Lisp_Object exact_p) | |
| 2235 { | |
| 2236 int depth = unlock_ghost_specifiers_protected (); | |
| 2237 Fremove_specifier (XSPECIFIER(specifier)->fallback, | |
| 2238 locale, tag_set, exact_p); | |
| 771 | 2239 unbind_to (depth); |
| 428 | 2240 } |
| 2241 | |
| 2242 struct copy_specifier_closure | |
| 2243 { | |
| 2244 Lisp_Object dest; | |
| 2245 enum spec_add_meth add_meth; | |
| 2246 int add_meth_is_nil; | |
| 2247 }; | |
| 2248 | |
| 2249 static int | |
| 2250 copy_specifier_mapfun (Lisp_Object specifier, | |
| 2251 Lisp_Object locale, | |
| 2252 enum spec_locale_type locale_type, | |
| 2253 Lisp_Object tag_set, | |
| 2254 int exact_p, | |
| 2255 void *closure) | |
| 2256 { | |
| 2257 struct copy_specifier_closure *cl = | |
| 2258 (struct copy_specifier_closure *) closure; | |
| 2259 | |
| 2260 if (NILP (locale)) | |
| 2261 specifier_copy_locale_type (specifier, cl->dest, locale_type, | |
| 2262 tag_set, exact_p, | |
| 2263 cl->add_meth_is_nil ? | |
| 2264 SPEC_REMOVE_LOCALE_TYPE : | |
| 2265 cl->add_meth); | |
| 2266 else | |
| 2267 specifier_copy_spec (specifier, cl->dest, locale, locale_type, | |
| 2268 tag_set, exact_p, | |
| 2269 cl->add_meth_is_nil ? SPEC_REMOVE_LOCALE : | |
| 2270 cl->add_meth); | |
| 2271 return 0; | |
| 2272 } | |
| 2273 | |
| 2274 DEFUN ("copy-specifier", Fcopy_specifier, 1, 6, 0, /* | |
| 2275 Copy SPECIFIER to DEST, or create a new one if DEST is nil. | |
| 2276 | |
| 2277 If DEST is nil or omitted, a new specifier will be created and the | |
| 2278 specifications copied into it. Otherwise, the specifications will be | |
| 2279 copied into the existing specifier in DEST. | |
| 2280 | |
| 2953 | 2281 If LOCALE is nil or `all', all specifications will be copied. If LOCALE |
| 428 | 2282 is a particular locale, the specification for that particular locale will |
| 2283 be copied. If LOCALE is a locale type, the specifications for all locales | |
| 2284 of that type will be copied. LOCALE can also be a list of locales, | |
| 2953 | 2285 locale types, and/or `all'; this is equivalent to calling `copy-specifier' |
| 428 | 2286 for each of the elements of the list. See `specifier-spec-list' for more |
| 2287 information about LOCALE. | |
| 2288 | |
| 2289 Only instantiators where TAG-SET (a list of zero or more tags) is a | |
| 2290 subset of (or possibly equal to) the instantiator's tag set are copied. | |
| 2291 The default value of nil is a subset of all tag sets, so in this case | |
| 2292 no instantiators will be screened out. If EXACT-P is non-nil, however, | |
| 2293 TAG-SET must be equal to an instantiator's tag set for the instantiator | |
| 2294 to be copied. | |
| 2295 | |
| 2296 Optional argument HOW-TO-ADD specifies what to do with existing | |
| 2297 specifications in DEST. If nil, then whichever locales or locale types | |
| 2298 are copied will first be completely erased in DEST. Otherwise, it is | |
| 2299 the same as in `add-spec-to-specifier'. | |
| 2300 */ | |
| 2301 (specifier, dest, locale, tag_set, exact_p, how_to_add)) | |
| 2302 { | |
| 2303 struct gcpro gcpro1; | |
| 2304 struct copy_specifier_closure cl; | |
| 2305 | |
| 2306 CHECK_SPECIFIER (specifier); | |
| 2307 if (NILP (how_to_add)) | |
| 2308 cl.add_meth_is_nil = 1; | |
| 2309 else | |
| 2310 cl.add_meth_is_nil = 0; | |
| 2311 cl.add_meth = decode_how_to_add_specification (how_to_add); | |
| 2312 if (NILP (dest)) | |
| 2313 { | |
| 2314 /* #### What about copying the extra data? */ | |
| 2315 dest = make_specifier (XSPECIFIER (specifier)->methods); | |
| 2316 } | |
| 2317 else | |
| 2318 { | |
| 2319 CHECK_SPECIFIER (dest); | |
| 2320 check_modifiable_specifier (dest); | |
| 2321 if (XSPECIFIER (dest)->methods != XSPECIFIER (specifier)->methods) | |
| 563 | 2322 invalid_argument ("Specifiers not of same type", Qunbound); |
| 428 | 2323 } |
| 2324 | |
| 2325 cl.dest = dest; | |
| 2326 GCPRO1 (dest); | |
| 2327 map_specifier (specifier, locale, copy_specifier_mapfun, | |
| 2328 tag_set, exact_p, &cl); | |
| 2329 UNGCPRO; | |
| 2330 recompute_cached_specifier_everywhere (dest); | |
| 2331 return dest; | |
| 2332 } | |
| 2333 | |
| 2334 | |
| 2335 /************************************************************************/ | |
| 2953 | 2336 /* Instantiation */ |
| 428 | 2337 /************************************************************************/ |
| 2338 | |
| 2339 static Lisp_Object | |
| 2340 call_validate_matchspec_method (Lisp_Object boxed_method, | |
| 2341 Lisp_Object matchspec) | |
| 2342 { | |
| 2343 ((void (*)(Lisp_Object)) get_opaque_ptr (boxed_method)) (matchspec); | |
| 2344 return Qt; | |
| 2345 } | |
| 2346 | |
| 2347 static Lisp_Object | |
| 2348 check_valid_specifier_matchspec (Lisp_Object matchspec, | |
| 2349 struct specifier_methods *meths, | |
| 578 | 2350 Error_Behavior errb) |
| 428 | 2351 { |
| 2352 if (meths->validate_matchspec_method) | |
| 2353 { | |
| 2354 Lisp_Object retval; | |
| 2355 | |
| 2356 if (ERRB_EQ (errb, ERROR_ME)) | |
| 2357 { | |
| 2358 (meths->validate_matchspec_method) (matchspec); | |
| 2359 retval = Qt; | |
| 2360 } | |
| 2361 else | |
| 2362 { | |
| 2363 Lisp_Object opaque = | |
| 2364 make_opaque_ptr ((void *) meths->validate_matchspec_method); | |
| 2365 struct gcpro gcpro1; | |
| 2366 | |
| 2367 GCPRO1 (opaque); | |
| 2368 retval = call_with_suspended_errors | |
| 2369 ((lisp_fn_t) call_validate_matchspec_method, | |
| 2370 Qnil, Qspecifier, errb, 2, opaque, matchspec); | |
| 2371 | |
| 2372 free_opaque_ptr (opaque); | |
| 2373 UNGCPRO; | |
| 2374 } | |
| 2375 | |
| 2376 return retval; | |
| 2377 } | |
| 2378 else | |
| 2379 { | |
| 563 | 2380 maybe_sferror |
| 428 | 2381 ("Matchspecs not allowed for this specifier type", |
| 2382 intern (meths->name), Qspecifier, errb); | |
| 2383 return Qnil; | |
| 2384 } | |
| 2385 } | |
| 2386 | |
| 442 | 2387 DEFUN ("check-valid-specifier-matchspec", Fcheck_valid_specifier_matchspec, 2, |
| 2388 2, 0, /* | |
| 428 | 2389 Signal an error if MATCHSPEC is invalid for SPECIFIER-TYPE. |
| 2390 See `specifier-matching-instance' for a description of matchspecs. | |
| 2391 */ | |
| 2392 (matchspec, specifier_type)) | |
| 2393 { | |
| 2394 struct specifier_methods *meths = decode_specifier_type (specifier_type, | |
| 2395 ERROR_ME); | |
| 2396 | |
| 2397 return check_valid_specifier_matchspec (matchspec, meths, ERROR_ME); | |
| 2398 } | |
| 2399 | |
| 2400 DEFUN ("valid-specifier-matchspec-p", Fvalid_specifier_matchspec_p, 2, 2, 0, /* | |
| 2401 Return non-nil if MATCHSPEC is valid for SPECIFIER-TYPE. | |
| 2402 See `specifier-matching-instance' for a description of matchspecs. | |
| 2403 */ | |
| 2404 (matchspec, specifier_type)) | |
| 2405 { | |
| 2406 struct specifier_methods *meths = decode_specifier_type (specifier_type, | |
| 2407 ERROR_ME); | |
| 2408 | |
| 2409 return check_valid_specifier_matchspec (matchspec, meths, ERROR_ME_NOT); | |
| 2410 } | |
| 2411 | |
| 2412 /* This function is purposely not callable from Lisp. If a Lisp | |
| 2413 caller wants to set a fallback, they should just set the | |
| 2414 global value. */ | |
| 2415 | |
| 2416 void | |
| 2417 set_specifier_fallback (Lisp_Object specifier, Lisp_Object fallback) | |
| 2418 { | |
| 440 | 2419 Lisp_Specifier *sp = XSPECIFIER (specifier); |
| 428 | 2420 assert (SPECIFIERP (fallback) || |
| 2421 !NILP (Fvalid_inst_list_p (fallback, Fspecifier_type (specifier)))); | |
| 2422 if (SPECIFIERP (fallback)) | |
| 2423 assert (EQ (Fspecifier_type (specifier), Fspecifier_type (fallback))); | |
| 2424 if (BODILY_SPECIFIER_P (sp)) | |
| 2425 GHOST_SPECIFIER(sp)->fallback = fallback; | |
| 2426 else | |
| 2427 sp->fallback = fallback; | |
| 2428 /* call the after-change method */ | |
| 2429 MAYBE_SPECMETH (sp, after_change, | |
| 2430 (bodily_specifier (specifier), Qfallback)); | |
| 2431 recompute_cached_specifier_everywhere (specifier); | |
| 2432 } | |
| 2433 | |
| 2434 DEFUN ("specifier-fallback", Fspecifier_fallback, 1, 1, 0, /* | |
| 2435 Return the fallback value for SPECIFIER. | |
| 2436 Fallback values are provided by the C code for certain built-in | |
| 2953 | 2437 specifiers to make sure that instantiation won't fail even if all |
| 428 | 2438 specs are removed from the specifier, or to implement simple |
| 2439 inheritance behavior (e.g. this method is used to ensure that | |
| 2953 | 2440 faces other than `default' inherit their attributes from `default'). |
| 428 | 2441 By design, you cannot change the fallback value, and specifiers |
| 2442 created with `make-specifier' will never have a fallback (although | |
| 2443 a similar, Lisp-accessible capability may be provided in the future | |
| 2444 to allow for inheritance). | |
| 2445 | |
| 2953 | 2446 The fallback value will be an inst-list that is instantiated like |
| 428 | 2447 any other inst-list, a specifier of the same type as SPECIFIER |
| 2448 \(results in inheritance), or nil for no fallback. | |
| 2449 | |
| 2953 | 2450 When you instantiate a specifier, you can explicitly request that the |
| 428 | 2451 fallback not be consulted. (The C code does this, for example, when |
| 2452 merging faces.) See `specifier-instance'. | |
| 2453 */ | |
| 2454 (specifier)) | |
| 2455 { | |
| 2456 CHECK_SPECIFIER (specifier); | |
| 2457 return Fcopy_tree (XSPECIFIER (specifier)->fallback, Qt); | |
| 2458 } | |
| 2459 | |
| 2460 static Lisp_Object | |
| 2461 specifier_instance_from_inst_list (Lisp_Object specifier, | |
| 2462 Lisp_Object matchspec, | |
| 2463 Lisp_Object domain, | |
| 2464 Lisp_Object inst_list, | |
| 578 | 2465 Error_Behavior errb, int no_quit, |
| 2953 | 2466 Lisp_Object depth, |
| 2467 Lisp_Object *instantiator) | |
| 428 | 2468 { |
| 2469 /* This function can GC */ | |
| 440 | 2470 Lisp_Specifier *sp; |
| 428 | 2471 Lisp_Object device; |
| 2472 Lisp_Object rest; | |
| 2473 int count = specpdl_depth (); | |
| 2474 struct gcpro gcpro1, gcpro2; | |
| 2475 | |
| 2476 GCPRO2 (specifier, inst_list); | |
| 2477 | |
| 2478 sp = XSPECIFIER (specifier); | |
| 442 | 2479 device = DOMAIN_DEVICE (domain); |
| 428 | 2480 |
| 2481 if (no_quit) | |
| 2482 /* The instantiate method is allowed to call eval. Since it | |
| 2483 is quite common for this function to get called from somewhere in | |
| 2484 redisplay we need to make sure that quits are ignored. Otherwise | |
| 2485 Fsignal will abort. */ | |
| 2486 specbind (Qinhibit_quit, Qt); | |
| 2487 | |
| 2488 LIST_LOOP (rest, inst_list) | |
| 2489 { | |
| 2490 Lisp_Object tagged_inst = XCAR (rest); | |
| 2491 Lisp_Object tag_set = XCAR (tagged_inst); | |
| 2492 | |
| 2493 if (device_matches_specifier_tag_set_p (device, tag_set)) | |
| 2494 { | |
| 2495 Lisp_Object val = XCDR (tagged_inst); | |
| 2953 | 2496 Lisp_Object the_instantiator = val; |
| 2497 | |
| 428 | 2498 |
| 2499 if (HAS_SPECMETH_P (sp, instantiate)) | |
| 2500 val = call_with_suspended_errors | |
| 2501 ((lisp_fn_t) RAW_SPECMETH (sp, instantiate), | |
| 2502 Qunbound, Qspecifier, errb, 5, specifier, | |
| 2503 matchspec, domain, val, depth); | |
| 2504 | |
| 2505 if (!UNBOUNDP (val)) | |
| 2506 { | |
| 771 | 2507 unbind_to (count); |
| 428 | 2508 UNGCPRO; |
| 2953 | 2509 if (instantiator) |
| 2510 *instantiator = the_instantiator; | |
| 428 | 2511 return val; |
| 2512 } | |
| 2513 } | |
| 2514 } | |
| 2515 | |
| 771 | 2516 unbind_to (count); |
| 428 | 2517 UNGCPRO; |
| 2518 return Qunbound; | |
| 2519 } | |
| 2520 | |
| 2521 /* Given a SPECIFIER and a DOMAIN, return a specific instance for that | |
| 2522 specifier. Try to find one by checking the specifier types from most | |
| 2523 specific (buffer) to most general (global). If we find an instance, | |
| 2524 return it. Otherwise return Qunbound. */ | |
| 2525 | |
| 2526 #define CHECK_INSTANCE_ENTRY(key, matchspec, type) do { \ | |
| 2527 Lisp_Object *CIE_inst_list = \ | |
| 2528 specifier_get_inst_list (specifier, key, type); \ | |
| 2529 if (CIE_inst_list) \ | |
| 2530 { \ | |
| 2531 Lisp_Object CIE_val = \ | |
| 2532 specifier_instance_from_inst_list (specifier, matchspec, \ | |
| 2533 domain, *CIE_inst_list, \ | |
| 2953 | 2534 errb, no_quit, depth, \ |
| 2535 instantiator); \ | |
| 428 | 2536 if (!UNBOUNDP (CIE_val)) \ |
| 2537 return CIE_val; \ | |
| 2538 } \ | |
| 2539 } while (0) | |
| 2540 | |
| 2541 /* We accept any window, frame or device domain and do our checking | |
| 2542 starting from as specific a locale type as we can determine from the | |
| 2543 domain we are passed and going on up through as many other locale types | |
| 2544 as we can determine. In practice, when called from redisplay the | |
| 2545 arg will usually be a window and occasionally a frame. If | |
| 2546 triggered by a user call, who knows what it will usually be. */ | |
| 2953 | 2547 |
| 2548 static Lisp_Object | |
| 2549 specifier_instance_1 (Lisp_Object specifier, Lisp_Object matchspec, | |
| 2550 Lisp_Object domain, Error_Behavior errb, int no_quit, | |
| 2551 int no_fallback, Lisp_Object depth, | |
| 2552 Lisp_Object *instantiator) | |
| 428 | 2553 { |
| 2554 Lisp_Object buffer = Qnil; | |
| 2555 Lisp_Object window = Qnil; | |
| 2556 Lisp_Object frame = Qnil; | |
| 2557 Lisp_Object device = Qnil; | |
| 444 | 2558 Lisp_Specifier *sp = XSPECIFIER (specifier); |
| 428 | 2559 |
| 2953 | 2560 if (instantiator) |
| 2561 *instantiator = Qunbound; | |
| 2562 | |
| 428 | 2563 /* Attempt to determine buffer, window, frame, and device from the |
| 2564 domain. */ | |
| 442 | 2565 /* #### get image instances out of domains! */ |
| 2566 if (IMAGE_INSTANCEP (domain)) | |
| 2567 window = DOMAIN_WINDOW (domain); | |
| 2568 else if (WINDOWP (domain)) | |
| 428 | 2569 window = domain; |
| 2570 else if (FRAMEP (domain)) | |
| 2571 frame = domain; | |
| 2572 else if (DEVICEP (domain)) | |
| 2573 device = domain; | |
| 2574 else | |
| 442 | 2575 /* dmoore writes: [dammit, this should just signal an error or something |
| 2576 shouldn't it?] | |
| 2577 | |
| 2578 No. Errors are handled in Lisp primitives implementation. | |
| 428 | 2579 Invalid domain is a design error here - kkm. */ |
| 2500 | 2580 ABORT (); |
| 428 | 2581 |
| 2582 if (NILP (buffer) && !NILP (window)) | |
| 444 | 2583 buffer = WINDOW_BUFFER (XWINDOW (window)); |
| 428 | 2584 if (NILP (frame) && !NILP (window)) |
| 2585 frame = XWINDOW (window)->frame; | |
| 2586 if (NILP (device)) | |
| 2587 /* frame had better exist; if device is undeterminable, something | |
| 2588 really went wrong. */ | |
| 444 | 2589 device = FRAME_DEVICE (XFRAME (frame)); |
| 428 | 2590 |
| 2591 /* device had better be determined by now; abort if not. */ | |
| 2286 | 2592 (void) DEVICE_CLASS (XDEVICE (device)); |
| 428 | 2593 |
| 2594 depth = make_int (1 + XINT (depth)); | |
| 2595 if (XINT (depth) > 20) | |
| 2596 { | |
| 563 | 2597 maybe_signal_error (Qstack_overflow, |
| 2598 "Apparent loop in specifier inheritance", | |
| 2599 Qunbound, Qspecifier, errb); | |
| 428 | 2600 /* The specification is fucked; at least try the fallback |
| 2601 (which better not be fucked, because it's not changeable | |
| 2602 from Lisp). */ | |
| 2603 depth = Qzero; | |
| 2604 goto do_fallback; | |
| 2605 } | |
| 2606 | |
| 434 | 2607 retry: |
| 428 | 2608 /* First see if we can generate one from the window specifiers. */ |
| 2609 if (!NILP (window)) | |
| 2610 CHECK_INSTANCE_ENTRY (window, matchspec, LOCALE_WINDOW); | |
| 2611 | |
| 2612 /* Next see if we can generate one from the buffer specifiers. */ | |
| 2613 if (!NILP (buffer)) | |
| 2614 CHECK_INSTANCE_ENTRY (buffer, matchspec, LOCALE_BUFFER); | |
| 2615 | |
| 2616 /* Next see if we can generate one from the frame specifiers. */ | |
| 2617 if (!NILP (frame)) | |
| 2618 CHECK_INSTANCE_ENTRY (frame, matchspec, LOCALE_FRAME); | |
| 2619 | |
| 2620 /* If we still haven't succeeded try with the device specifiers. */ | |
| 2621 CHECK_INSTANCE_ENTRY (device, matchspec, LOCALE_DEVICE); | |
| 2622 | |
| 2623 /* Last and least try the global specifiers. */ | |
| 2624 CHECK_INSTANCE_ENTRY (Qglobal, matchspec, LOCALE_GLOBAL); | |
| 2625 | |
| 434 | 2626 do_fallback: |
| 428 | 2627 /* We're out of specifiers and we still haven't generated an |
| 2628 instance. At least try the fallback ... If this fails, | |
| 2629 then we just return Qunbound. */ | |
| 2630 | |
| 2631 if (no_fallback || NILP (sp->fallback)) | |
| 2632 /* I said, I don't want the fallbacks. */ | |
| 2633 return Qunbound; | |
| 2634 | |
| 2635 if (SPECIFIERP (sp->fallback)) | |
| 2636 { | |
| 2637 /* If you introduced loops in the default specifier chain, | |
| 2638 then you're fucked, so you better not do this. */ | |
| 2639 specifier = sp->fallback; | |
| 2640 sp = XSPECIFIER (specifier); | |
| 2641 goto retry; | |
| 2642 } | |
| 2643 | |
| 2644 assert (CONSP (sp->fallback)); | |
| 2645 return specifier_instance_from_inst_list (specifier, matchspec, domain, | |
| 2646 sp->fallback, errb, no_quit, | |
| 2953 | 2647 depth, instantiator); |
| 428 | 2648 } |
| 2649 #undef CHECK_INSTANCE_ENTRY | |
| 2650 | |
| 2651 Lisp_Object | |
| 2953 | 2652 specifier_instance (Lisp_Object specifier, Lisp_Object matchspec, |
| 2653 Lisp_Object domain, Error_Behavior errb, int no_quit, | |
| 2654 int no_fallback, Lisp_Object depth) | |
| 2655 { | |
| 2656 return specifier_instance_1 (specifier, matchspec, domain, errb, | |
| 2657 no_quit, no_fallback, depth, NULL); | |
| 2658 } | |
| 2659 | |
| 2660 Lisp_Object | |
| 428 | 2661 specifier_instance_no_quit (Lisp_Object specifier, Lisp_Object matchspec, |
| 578 | 2662 Lisp_Object domain, Error_Behavior errb, |
| 428 | 2663 int no_fallback, Lisp_Object depth) |
| 2664 { | |
| 2953 | 2665 return specifier_instance_1 (specifier, matchspec, domain, errb, |
| 2666 1, no_fallback, depth, NULL); | |
| 2667 } | |
| 2668 | |
| 2669 static Lisp_Object | |
| 2670 specifier_matching_foo (Lisp_Object specifier, | |
| 2671 Lisp_Object matchspec, | |
| 2672 Lisp_Object domain, | |
| 2673 Lisp_Object default_, | |
| 2674 Lisp_Object no_fallback, | |
| 2675 int want_instantiator) | |
| 2676 { | |
| 2677 Lisp_Object instance, instantiator; | |
| 2678 | |
| 2679 CHECK_SPECIFIER (specifier); | |
| 2680 if (!UNBOUNDP (matchspec)) | |
| 2681 check_valid_specifier_matchspec (matchspec, | |
| 2682 XSPECIFIER (specifier)->methods, | |
| 2683 ERROR_ME); | |
| 2684 domain = decode_domain (domain); | |
| 2685 | |
| 2686 instance = specifier_instance_1 (specifier, matchspec, domain, ERROR_ME, | |
| 2687 0, !NILP (no_fallback), Qzero, | |
| 2688 &instantiator); | |
| 2689 return UNBOUNDP (instance) ? default_ : want_instantiator ? instantiator : | |
| 2690 instance; | |
| 428 | 2691 } |
| 2692 | |
| 2693 DEFUN ("specifier-instance", Fspecifier_instance, 1, 4, 0, /* | |
| 2694 Instantiate SPECIFIER (return its value) in DOMAIN. | |
| 2695 If no instance can be generated for this domain, return DEFAULT. | |
| 2696 | |
| 2953 | 2697 DOMAIN is nearly always a window (defaulting to the selected window if |
| 2698 omitted), but can be a window, frame, or device. Other values that are legal | |
| 428 | 2699 as a locale (e.g. a buffer) are not valid as a domain because they do not |
| 2700 provide enough information to identify a particular device (see | |
| 2953 | 2701 `valid-specifier-domain-p'). Window domains are used internally in nearly |
| 2702 all circumstances when computing specifier instances of display properties. | |
| 2703 Frame domains are used in a few circumstances (such as when computing the | |
| 2704 geometry of a frame based on properties such as the toolbar widths), and | |
| 2705 device domains are rarely if ever used internally. | |
| 2706 | |
| 2707 This function looks through the specifications in SPECIFIER that correspond | |
| 2708 to DOMAIN, from most specific (specifications for DOMAIN itself) to most | |
| 2709 general (global specifications), for matching instantiators, and attempts | |
| 2710 to compute an instance value for each instantiator found. The first | |
| 2711 successfully computed value is returned. The corresponding instantiator | |
| 2712 can be returned using `specifier-instantiator'. | |
| 2713 | |
| 2714 A specifier is a generalized object for controlling the value of a property -- | |
| 2715 typically, but not necessarily, a display-related property -- that can vary | |
| 2716 over particular buffers, frames, device types, etc. | |
| 2717 | |
| 2718 A fundamental distinction must be made between the specification of a | |
| 2719 property's value, and the resulting value itself. This distinction is | |
| 2720 clearest in the case of an image -- the specification describes the source | |
| 2721 of the image (for example, a file of JPEG data), and the resulting value | |
| 2722 encapsulates a window-system object describing the image as displayed on a | |
| 2723 particular device (for example, a particular X display). The specification | |
| 2724 might also be an instruction of the form "use the background pixmap of the | |
| 2725 `modeline' face". A similar mapping exists between color strings and | |
| 2726 color-instance objects, and font strings and font-instance objects. In | |
| 2727 some cases, the specification and the resulting value are of the same type, | |
| 2728 but the distinction is still logically made. | |
| 2729 | |
| 2730 The specification of a value is called an instantiator, and the resulting | |
| 2731 value the instance. | |
| 428 | 2732 |
| 2733 "Instantiating" a specifier in a particular domain means determining | |
| 2734 the specifier's "value" in that domain. This is accomplished by | |
| 2735 searching through the specifications in the specifier that correspond | |
| 2736 to all locales that can be derived from the given domain, from specific | |
| 2737 to general. In most cases, the domain is an Emacs window. In that case | |
| 2738 specifications are searched for as follows: | |
| 2739 | |
| 2740 1. A specification whose locale is the window itself; | |
| 2741 2. A specification whose locale is the window's buffer; | |
| 2742 3. A specification whose locale is the window's frame; | |
| 2743 4. A specification whose locale is the window's frame's device; | |
| 2953 | 2744 5. A specification whose locale is `global'. |
| 428 | 2745 |
| 2746 If all of those fail, then the C-code-provided fallback value for | |
| 2747 this specifier is consulted (see `specifier-fallback'). If it is | |
| 2748 an inst-list, then this function attempts to instantiate that list | |
| 2749 just as when a specification is located in the first five steps above. | |
| 2750 If the fallback is a specifier, `specifier-instance' is called | |
| 2751 recursively on this specifier and the return value used. Note, | |
| 2752 however, that if the optional argument NO-FALLBACK is non-nil, | |
| 2753 the fallback value will not be consulted. | |
| 2754 | |
| 2755 Note that there may be more than one specification matching a particular | |
| 2756 locale; all such specifications are considered before looking for any | |
| 2757 specifications for more general locales. Any particular specification | |
| 2758 that is found may be rejected because its tag set does not match the | |
| 2759 device being instantiated over, or because the specification is not | |
| 2760 valid for the device of the given domain (e.g. the font or color name | |
| 2761 does not exist for this particular X server). | |
| 2762 | |
| 793 | 2763 NOTE: When errors occur in the process of trying a particular instantiator, |
| 2764 and the instantiator is thus skipped, warnings will be issued at level | |
| 2765 `debug'. Normally, such warnings are ignored entirely, but you can change | |
| 2766 this by setting `log-warning-minimum-level'. This is useful if you're | |
| 2767 trying to debug why particular instantiators are not being processed. | |
| 2768 | |
| 428 | 2769 The returned value is dependent on the type of specifier. For example, |
| 2770 for a font specifier (as returned by the `face-font' function), the returned | |
| 2771 value will be a font-instance object. For glyphs, the returned value | |
| 2953 | 2772 will be an image-instance object. |
| 428 | 2773 |
| 2774 See also `specifier-matching-instance'. | |
| 2775 */ | |
| 2776 (specifier, domain, default_, no_fallback)) | |
| 2777 { | |
| 2953 | 2778 return specifier_matching_foo (specifier, Qunbound, domain, default_, |
| 2779 no_fallback, 0); | |
| 2780 } | |
| 2781 | |
| 2782 DEFUN ("specifier-instantiator", Fspecifier_instantiator, 1, 4, 0, /* | |
| 2783 Return instantiator that would be used to instantiate SPECIFIER in DOMAIN. | |
| 2784 If no instance can be generated for this domain, return DEFAULT. | |
| 2785 | |
| 2786 DOMAIN should be a window, frame, or device. Other values that are legal | |
| 2787 as a locale (e.g. a buffer) are not valid as a domain because they do not | |
| 2788 provide enough information to identify a particular device (see | |
| 2789 `valid-specifier-domain-p'). DOMAIN defaults to the selected window | |
| 2790 if omitted. | |
| 2791 | |
| 2792 See `specifier-instance' for more information about the instantiation process. | |
| 2793 */ | |
| 2794 (specifier, domain, default_, no_fallback)) | |
| 2795 { | |
| 2796 return specifier_matching_foo (specifier, Qunbound, domain, default_, | |
| 2797 no_fallback, 1); | |
| 428 | 2798 } |
| 2799 | |
| 2800 DEFUN ("specifier-matching-instance", Fspecifier_matching_instance, 2, 5, 0, /* | |
| 2801 Return an instance for SPECIFIER in DOMAIN that matches MATCHSPEC. | |
| 2802 If no instance can be generated for this domain, return DEFAULT. | |
| 2803 | |
| 2804 This function is identical to `specifier-instance' except that a | |
| 2805 specification will only be considered if it matches MATCHSPEC. | |
| 2806 The definition of "match", and allowed values for MATCHSPEC, are | |
| 2807 dependent on the particular type of specifier. Here are some examples: | |
| 2808 | |
| 2809 -- For chartable (e.g. display table) specifiers, MATCHSPEC should be a | |
| 2810 character, and the specification (a chartable) must give a value for | |
| 2811 that character in order to be considered. This allows you to specify, | |
| 2812 e.g., a buffer-local display table that only gives values for particular | |
| 2813 characters. All other characters are handled as if the buffer-local | |
| 2814 display table is not there. (Chartable specifiers are not yet | |
| 2815 implemented.) | |
| 2816 | |
| 872 | 2817 -- For font specifiers, MATCHSPEC should be a list (CHARSET . SECOND-STAGE-P), |
| 2818 and the specification (a font string) must have a registry that matches | |
| 2819 the charset's registry. (This only makes sense with Mule support.) This | |
| 2820 makes it easy to choose a font that can display a particular | |
| 2821 character. (This is what redisplay does, in fact.) SECOND-STAGE-P means | |
| 2822 to ignore the font's registry and instead look at the characters in the | |
| 2823 font to see if the font can support the charset. This currently only makes | |
| 2824 sense under MS Windows. | |
| 428 | 2825 */ |
| 2826 (specifier, matchspec, domain, default_, no_fallback)) | |
| 2827 { | |
| 2953 | 2828 return specifier_matching_foo (specifier, matchspec, domain, default_, |
| 2829 no_fallback, 0); | |
| 2830 } | |
| 2831 | |
| 2832 DEFUN ("specifier-matching-instantiator", Fspecifier_matching_instantiator, | |
| 2833 2, 5, 0, /* | |
| 2834 Return instantiator for instance of SPECIFIER in DOMAIN that matches MATCHSPEC. | |
| 2835 If no instance can be generated for this domain, return DEFAULT. | |
| 2836 | |
| 2837 This function is identical to `specifier-matching-instance' but returns | |
| 2838 the instantiator used to generate the instance, rather than the actual | |
| 2839 instance. | |
| 2840 */ | |
| 2841 (specifier, matchspec, domain, default_, no_fallback)) | |
| 2842 { | |
| 2843 return specifier_matching_foo (specifier, matchspec, domain, default_, | |
| 2844 no_fallback, 1); | |
| 2845 } | |
| 2846 | |
| 2847 static Lisp_Object | |
| 2848 specifier_matching_foo_from_inst_list (Lisp_Object specifier, | |
| 2849 Lisp_Object matchspec, | |
| 2850 Lisp_Object domain, | |
| 2851 Lisp_Object inst_list, | |
| 2852 Lisp_Object default_, | |
| 2853 int want_instantiator) | |
| 2854 { | |
| 2855 Lisp_Object val = Qunbound; | |
| 2856 Lisp_Specifier *sp = XSPECIFIER (specifier); | |
| 2857 struct gcpro gcpro1; | |
| 2858 Lisp_Object built_up_list = Qnil; | |
| 2859 Lisp_Object instantiator; | |
| 428 | 2860 |
| 2861 CHECK_SPECIFIER (specifier); | |
| 2953 | 2862 if (!UNBOUNDP (matchspec)) |
| 2863 check_valid_specifier_matchspec (matchspec, | |
| 2864 XSPECIFIER (specifier)->methods, | |
| 2865 ERROR_ME); | |
| 2866 check_valid_domain (domain); | |
| 2867 check_valid_inst_list (inst_list, sp->methods, ERROR_ME); | |
| 2868 GCPRO1 (built_up_list); | |
| 2869 built_up_list = build_up_processed_list (specifier, domain, inst_list); | |
| 2870 if (!NILP (built_up_list)) | |
| 2871 val = specifier_instance_from_inst_list (specifier, matchspec, domain, | |
| 2872 built_up_list, ERROR_ME, | |
| 2873 0, Qzero, &instantiator); | |
| 2874 UNGCPRO; | |
| 2875 return UNBOUNDP (val) ? default_ : want_instantiator ? instantiator : val; | |
| 2876 | |
| 428 | 2877 } |
| 2878 | |
| 2879 DEFUN ("specifier-instance-from-inst-list", Fspecifier_instance_from_inst_list, | |
| 2880 3, 4, 0, /* | |
| 2881 Attempt to convert a particular inst-list into an instance. | |
| 2882 This attempts to instantiate INST-LIST in the given DOMAIN, | |
| 2883 as if INST-LIST existed in a specification in SPECIFIER. If | |
| 2884 the instantiation fails, DEFAULT is returned. In most circumstances, | |
| 2885 you should not use this function; use `specifier-instance' instead. | |
| 2886 */ | |
| 2887 (specifier, domain, inst_list, default_)) | |
| 2888 { | |
| 2953 | 2889 return specifier_matching_foo_from_inst_list (specifier, Qunbound, |
| 2890 domain, inst_list, default_, | |
| 2891 0); | |
| 2892 } | |
| 2893 | |
| 2894 DEFUN ("specifier-instantiator-from-inst-list", Fspecifier_instantiator_from_inst_list, | |
| 2895 3, 4, 0, /* | |
| 2896 Attempt to convert an inst-list into an instance; return instantiator. | |
| 2897 This is identical to `specifier-instance-from-inst-list' but returns | |
| 2898 the instantiator used to generate the instance, rather than the instance | |
| 2899 itself. | |
| 2900 */ | |
| 2901 (specifier, domain, inst_list, default_)) | |
| 2902 { | |
| 2903 return specifier_matching_foo_from_inst_list (specifier, Qunbound, | |
| 2904 domain, inst_list, default_, | |
| 2905 1); | |
| 428 | 2906 } |
| 2907 | |
| 442 | 2908 DEFUN ("specifier-matching-instance-from-inst-list", |
| 2909 Fspecifier_matching_instance_from_inst_list, | |
| 428 | 2910 4, 5, 0, /* |
| 2911 Attempt to convert a particular inst-list into an instance. | |
| 2912 This attempts to instantiate INST-LIST in the given DOMAIN | |
| 2913 \(as if INST-LIST existed in a specification in SPECIFIER), | |
| 2914 matching the specifications against MATCHSPEC. | |
| 2915 | |
| 2916 This function is analogous to `specifier-instance-from-inst-list' | |
| 2917 but allows for specification-matching as in `specifier-matching-instance'. | |
| 2918 See that function for a description of exactly how the matching process | |
| 2919 works. | |
| 2920 */ | |
| 2921 (specifier, matchspec, domain, inst_list, default_)) | |
| 2922 { | |
| 2953 | 2923 return specifier_matching_foo_from_inst_list (specifier, matchspec, |
| 2924 domain, inst_list, default_, | |
| 2925 0); | |
| 2926 } | |
| 2927 | |
| 2928 DEFUN ("specifier-matching-instantiator-from-inst-list", | |
| 2929 Fspecifier_matching_instantiator_from_inst_list, | |
| 2930 4, 5, 0, /* | |
| 2931 Attempt to convert an inst-list into an instance; return instantiator. | |
| 2932 This is identical to `specifier-matching-instance-from-inst-list' but returns | |
| 2933 the instantiator used to generate the instance, rather than the instance | |
| 2934 itself. | |
| 2935 */ | |
| 2936 (specifier, matchspec, domain, inst_list, default_)) | |
| 2937 { | |
| 2938 return specifier_matching_foo_from_inst_list (specifier, matchspec, | |
| 2939 domain, inst_list, default_, | |
| 2940 1); | |
| 428 | 2941 } |
| 2942 | |
| 2943 | |
| 2944 /************************************************************************/ | |
| 2945 /* Caching in the struct window or frame */ | |
| 2946 /************************************************************************/ | |
| 2947 | |
| 853 | 2948 /* Cause the current value of SPECIFIER in the domain of each frame and/or |
| 2949 window to be cached in the struct frame at STRUCT_FRAME_OFFSET and the | |
| 2950 struct window at STRUCT_WINDOW_OFFSET. When the value changes in a | |
| 2951 particular window, VALUE_CHANGED_IN_WINDOW is called. When the value | |
| 2952 changes in a particular frame, VALUE_CHANGED_IN_FRAME is called. | |
| 2953 | |
| 2954 Either STRUCT_WINDOW_OFFSET or STRUCT_FRAME_OFFSET can be 0 to indicate | |
| 2955 no caching in that sort of object. However, if they're not 0, you | |
| 2956 must supply a corresponding value-changed function. (This is the case | |
| 2957 so that you are forced to consider the ramifications of a value change. | |
| 2958 You nearly always need to do something, e.g. set a dirty flag.) | |
| 2959 | |
| 2960 If you create a built-in specifier, you should do the following: | |
| 2961 | |
| 2962 - Make sure the file you create the specifier in has a | |
| 2963 specifier_vars_of_foo() function. If not, create it, declare it in | |
| 2964 symsinit.h, and make sure it's called in the appropriate place in | |
| 2965 emacs.c. | |
| 2966 - In specifier_vars_of_foo(), do a DEFVAR_SPECIFIER(), followed by | |
| 2967 initializing the specifier using Fmake_specifier(), followed by | |
| 2968 set_specifier_fallback(), followed (optionally) by | |
| 2969 set_specifier_caching(). | |
| 2970 - If you used set_specifier_caching(), make sure to create the | |
| 2971 appropriate value-changed functions. Also make sure to add the | |
| 2972 appropriate slots where the values are cached to frameslots.h and | |
| 2973 winslots.h. | |
| 2974 | |
| 2975 Do a grep for menubar_visible_p for an example. | |
| 2976 */ | |
| 428 | 2977 |
| 2978 /* #### It would be nice if the specifier caching automatically knew | |
| 2979 about specifier fallbacks, so we didn't have to do it ourselves. */ | |
| 2980 | |
| 2981 void | |
| 2982 set_specifier_caching (Lisp_Object specifier, int struct_window_offset, | |
| 2983 void (*value_changed_in_window) | |
| 2984 (Lisp_Object specifier, struct window *w, | |
| 2985 Lisp_Object oldval), | |
| 2986 int struct_frame_offset, | |
| 2987 void (*value_changed_in_frame) | |
| 2988 (Lisp_Object specifier, struct frame *f, | |
| 444 | 2989 Lisp_Object oldval), |
| 2990 int always_recompute) | |
| 428 | 2991 { |
| 440 | 2992 Lisp_Specifier *sp = XSPECIFIER (specifier); |
| 428 | 2993 assert (!GHOST_SPECIFIER_P (sp)); |
| 2994 | |
| 2995 if (!sp->caching) | |
| 2996 sp->caching = xnew_and_zero (struct specifier_caching); | |
| 2997 sp->caching->offset_into_struct_window = struct_window_offset; | |
| 2998 sp->caching->value_changed_in_window = value_changed_in_window; | |
| 2999 sp->caching->offset_into_struct_frame = struct_frame_offset; | |
| 3000 sp->caching->value_changed_in_frame = value_changed_in_frame; | |
| 853 | 3001 if (struct_window_offset) |
| 3002 assert (value_changed_in_window); | |
| 3003 if (struct_frame_offset) | |
| 3004 assert (value_changed_in_frame); | |
| 444 | 3005 sp->caching->always_recompute = always_recompute; |
| 428 | 3006 Vcached_specifiers = Fcons (specifier, Vcached_specifiers); |
| 3007 if (BODILY_SPECIFIER_P (sp)) | |
| 3008 GHOST_SPECIFIER(sp)->caching = sp->caching; | |
| 3009 recompute_cached_specifier_everywhere (specifier); | |
| 3010 } | |
| 3011 | |
| 3012 static void | |
| 3013 recompute_one_cached_specifier_in_window (Lisp_Object specifier, | |
| 3014 struct window *w) | |
| 3015 { | |
| 3016 Lisp_Object window; | |
| 444 | 3017 Lisp_Object newval, *location, oldval; |
| 428 | 3018 |
| 3019 assert (!GHOST_SPECIFIER_P (XSPECIFIER (specifier))); | |
| 3020 | |
| 793 | 3021 window = wrap_window (w); |
| 428 | 3022 |
| 3023 newval = specifier_instance (specifier, Qunbound, window, ERROR_ME_WARN, | |
| 3024 0, 0, Qzero); | |
| 3025 /* If newval ended up Qunbound, then the calling functions | |
| 3026 better be able to deal. If not, set a default so this | |
| 3027 never happens or correct it in the value_changed_in_window | |
| 3028 method. */ | |
| 3029 location = (Lisp_Object *) | |
| 3030 ((char *) w + XSPECIFIER (specifier)->caching->offset_into_struct_window); | |
| 442 | 3031 /* #### What's the point of this check, other than to optimize image |
| 3032 instance instantiation? Unless you specify a caching instantiate | |
| 3033 method the instantiation that specifier_instance will do will | |
| 3034 always create a new copy. Thus EQ will always fail. Unfortunately | |
| 3035 calling equal is no good either as this doesn't take into account | |
| 3036 things attached to the specifier - for instance strings on | |
| 3037 extents. --andyp */ | |
| 444 | 3038 if (!EQ (newval, *location) || XSPECIFIER (specifier)->caching->always_recompute) |
| 428 | 3039 { |
| 444 | 3040 oldval = *location; |
| 428 | 3041 *location = newval; |
| 3042 (XSPECIFIER (specifier)->caching->value_changed_in_window) | |
| 3043 (specifier, w, oldval); | |
| 3044 } | |
| 3045 } | |
| 3046 | |
| 3047 static void | |
| 3048 recompute_one_cached_specifier_in_frame (Lisp_Object specifier, | |
| 3049 struct frame *f) | |
| 3050 { | |
| 3051 Lisp_Object frame; | |
| 444 | 3052 Lisp_Object newval, *location, oldval; |
| 428 | 3053 |
| 3054 assert (!GHOST_SPECIFIER_P (XSPECIFIER (specifier))); | |
| 3055 | |
| 793 | 3056 frame = wrap_frame (f); |
| 428 | 3057 |
| 3058 newval = specifier_instance (specifier, Qunbound, frame, ERROR_ME_WARN, | |
| 3059 0, 0, Qzero); | |
| 3060 /* If newval ended up Qunbound, then the calling functions | |
| 3061 better be able to deal. If not, set a default so this | |
| 3062 never happens or correct it in the value_changed_in_frame | |
| 3063 method. */ | |
| 3064 location = (Lisp_Object *) | |
| 3065 ((char *) f + XSPECIFIER (specifier)->caching->offset_into_struct_frame); | |
| 444 | 3066 if (!EQ (newval, *location) || XSPECIFIER (specifier)->caching->always_recompute) |
| 428 | 3067 { |
| 444 | 3068 oldval = *location; |
| 428 | 3069 *location = newval; |
| 3070 (XSPECIFIER (specifier)->caching->value_changed_in_frame) | |
| 3071 (specifier, f, oldval); | |
| 3072 } | |
| 3073 } | |
| 3074 | |
| 3075 void | |
| 3076 recompute_all_cached_specifiers_in_window (struct window *w) | |
| 3077 { | |
| 3078 Lisp_Object rest; | |
| 3079 | |
| 3080 LIST_LOOP (rest, Vcached_specifiers) | |
| 3081 { | |
| 3082 Lisp_Object specifier = XCAR (rest); | |
| 3083 if (XSPECIFIER (specifier)->caching->offset_into_struct_window) | |
| 3084 recompute_one_cached_specifier_in_window (specifier, w); | |
| 3085 } | |
| 3086 } | |
| 3087 | |
| 3088 void | |
| 3089 recompute_all_cached_specifiers_in_frame (struct frame *f) | |
| 3090 { | |
| 3091 Lisp_Object rest; | |
| 3092 | |
| 3093 LIST_LOOP (rest, Vcached_specifiers) | |
| 3094 { | |
| 3095 Lisp_Object specifier = XCAR (rest); | |
| 3096 if (XSPECIFIER (specifier)->caching->offset_into_struct_frame) | |
| 3097 recompute_one_cached_specifier_in_frame (specifier, f); | |
| 3098 } | |
| 3099 } | |
| 3100 | |
| 3101 static int | |
| 3102 recompute_cached_specifier_everywhere_mapfun (struct window *w, | |
| 3103 void *closure) | |
| 3104 { | |
| 3105 Lisp_Object specifier = Qnil; | |
| 3106 | |
| 826 | 3107 specifier = VOID_TO_LISP (closure); |
| 428 | 3108 recompute_one_cached_specifier_in_window (specifier, w); |
| 3109 return 0; | |
| 3110 } | |
| 3111 | |
| 3112 static void | |
| 3113 recompute_cached_specifier_everywhere (Lisp_Object specifier) | |
| 3114 { | |
| 3115 Lisp_Object frmcons, devcons, concons; | |
| 3116 | |
| 3117 specifier = bodily_specifier (specifier); | |
| 3118 | |
| 3119 if (!XSPECIFIER (specifier)->caching) | |
| 3120 return; | |
| 3121 | |
| 3122 if (XSPECIFIER (specifier)->caching->offset_into_struct_window) | |
| 3123 { | |
| 3124 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons) | |
| 3125 map_windows (XFRAME (XCAR (frmcons)), | |
| 3126 recompute_cached_specifier_everywhere_mapfun, | |
| 3127 LISP_TO_VOID (specifier)); | |
| 3128 } | |
| 3129 | |
| 3130 if (XSPECIFIER (specifier)->caching->offset_into_struct_frame) | |
| 3131 { | |
| 3132 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons) | |
| 3133 recompute_one_cached_specifier_in_frame (specifier, | |
| 3134 XFRAME (XCAR (frmcons))); | |
| 3135 } | |
| 3136 } | |
| 3137 | |
| 3138 DEFUN ("set-specifier-dirty-flag", Fset_specifier_dirty_flag, 1, 1, 0, /* | |
| 3139 Force recomputation of any caches associated with SPECIFIER. | |
| 3140 Note that this automatically happens whenever you change a specification | |
| 3141 in SPECIFIER; you do not have to call this function then. | |
| 3142 One example of where this function is useful is when you have a | |
| 3143 toolbar button whose `active-p' field is an expression to be | |
| 3144 evaluated. Calling `set-specifier-dirty-flag' on the | |
| 3145 toolbar specifier will force the `active-p' fields to be | |
| 3146 recomputed. | |
| 3147 */ | |
| 3148 (specifier)) | |
| 3149 { | |
| 3150 CHECK_SPECIFIER (specifier); | |
| 3151 recompute_cached_specifier_everywhere (specifier); | |
| 3152 return Qnil; | |
| 3153 } | |
| 3154 | |
| 3155 | |
| 3156 /************************************************************************/ | |
| 3157 /* Generic specifier type */ | |
| 3158 /************************************************************************/ | |
| 3159 | |
| 3160 DEFINE_SPECIFIER_TYPE (generic); | |
| 3161 | |
| 3162 #if 0 | |
| 3163 | |
| 3164 /* This is the string that used to be in `generic-specifier-p'. | |
| 3165 The idea is good, but it doesn't quite work in the form it's | |
| 3166 in. (One major problem is that validating an instantiator | |
| 3167 is supposed to require only that the specifier type is passed, | |
| 3168 while with this approach the actual specifier is needed.) | |
| 3169 | |
| 3170 What really needs to be done is to write a function | |
| 3171 `make-specifier-type' that creates new specifier types. | |
| 442 | 3172 |
| 3173 #### [I'll look into this for 19.14.] Well, sometime. (Currently | |
| 3174 May 2000, 21.2 is in development. 19.14 was released in June 1996.) */ | |
| 428 | 3175 |
| 3176 "A generic specifier is a generalized kind of specifier with user-defined\n" | |
| 3177 "semantics. The instantiator can be any kind of Lisp object, and the\n" | |
| 3178 "instance computed from it is likewise any kind of Lisp object. The\n" | |
| 3179 "SPECIFIER-DATA should be an alist of methods governing how the specifier\n" | |
| 3180 "works. All methods are optional, and reasonable default methods will be\n" | |
| 2953 | 3181 "provided. Currently there are two defined methods: `instantiate' and\n" |
| 3182 "`validate'.\n" | |
| 428 | 3183 "\n" |
| 2953 | 3184 "`instantiate' specifies how to do the instantiation; if omitted, the\n" |
| 428 | 3185 "instantiator itself is simply returned as the instance. The method\n" |
| 3186 "should be a function that accepts three parameters (a specifier, the\n" | |
| 3187 "instantiator that matched the domain being instantiated over, and that\n" | |
| 3188 "domain), and should return a one-element list containing the instance,\n" | |
| 3189 "or nil if no instance exists. Note that the domain passed to this function\n" | |
| 3190 "is the domain being instantiated over, which may not be the same as the\n" | |
| 3191 "locale contained in the specification corresponding to the instantiator\n" | |
| 3192 "(for example, the domain being instantiated over could be a window, but\n" | |
| 3193 "the locale corresponding to the passed instantiator could be the window's\n" | |
| 3194 "buffer or frame).\n" | |
| 3195 "\n" | |
| 2953 | 3196 "`validate' specifies whether a given instantiator is valid; if omitted,\n" |
| 428 | 3197 "all instantiators are considered valid. It should be a function of\n" |
| 3198 "two arguments: an instantiator and a flag CAN-SIGNAL-ERROR. If this\n" | |
| 3199 "flag is false, the function must simply return t or nil indicating\n" | |
| 3200 "whether the instantiator is valid. If this flag is true, the function\n" | |
| 3201 "is free to signal an error if it encounters an invalid instantiator\n" | |
| 3202 "(this can be useful for issuing a specific error about exactly why the\n" | |
| 3203 "instantiator is valid). It can also return nil to indicate an invalid\n" | |
| 3204 "instantiator; in this case, a general error will be signalled." | |
| 3205 | |
| 3206 #endif /* 0 */ | |
| 3207 | |
| 3208 DEFUN ("generic-specifier-p", Fgeneric_specifier_p, 1, 1, 0, /* | |
| 3209 Return non-nil if OBJECT is a generic specifier. | |
| 3210 | |
| 442 | 3211 See `make-generic-specifier' for a description of possible generic |
| 3212 instantiators. | |
| 428 | 3213 */ |
| 3214 (object)) | |
| 3215 { | |
| 3216 return GENERIC_SPECIFIERP (object) ? Qt : Qnil; | |
| 3217 } | |
| 3218 | |
| 3219 | |
| 3220 /************************************************************************/ | |
| 3221 /* Integer specifier type */ | |
| 3222 /************************************************************************/ | |
| 3223 | |
| 3224 DEFINE_SPECIFIER_TYPE (integer); | |
| 3225 | |
| 3226 static void | |
| 3227 integer_validate (Lisp_Object instantiator) | |
| 3228 { | |
| 3229 CHECK_INT (instantiator); | |
| 3230 } | |
| 3231 | |
| 3232 DEFUN ("integer-specifier-p", Finteger_specifier_p, 1, 1, 0, /* | |
| 3233 Return non-nil if OBJECT is an integer specifier. | |
| 442 | 3234 |
| 3235 See `make-integer-specifier' for a description of possible integer | |
| 3236 instantiators. | |
| 428 | 3237 */ |
| 3238 (object)) | |
| 3239 { | |
| 3240 return INTEGER_SPECIFIERP (object) ? Qt : Qnil; | |
| 3241 } | |
| 3242 | |
| 3243 /************************************************************************/ | |
| 3244 /* Non-negative-integer specifier type */ | |
| 3245 /************************************************************************/ | |
| 3246 | |
| 3247 DEFINE_SPECIFIER_TYPE (natnum); | |
| 3248 | |
| 3249 static void | |
| 3250 natnum_validate (Lisp_Object instantiator) | |
| 3251 { | |
| 3252 CHECK_NATNUM (instantiator); | |
| 3253 } | |
| 3254 | |
| 3255 DEFUN ("natnum-specifier-p", Fnatnum_specifier_p, 1, 1, 0, /* | |
| 3256 Return non-nil if OBJECT is a natnum (non-negative-integer) specifier. | |
| 442 | 3257 |
| 3258 See `make-natnum-specifier' for a description of possible natnum | |
| 3259 instantiators. | |
| 428 | 3260 */ |
| 3261 (object)) | |
| 3262 { | |
| 3263 return NATNUM_SPECIFIERP (object) ? Qt : Qnil; | |
| 3264 } | |
| 3265 | |
| 3266 /************************************************************************/ | |
| 3267 /* Boolean specifier type */ | |
| 3268 /************************************************************************/ | |
| 3269 | |
| 3270 DEFINE_SPECIFIER_TYPE (boolean); | |
| 3271 | |
| 3272 static void | |
| 3273 boolean_validate (Lisp_Object instantiator) | |
| 3274 { | |
| 3275 if (!EQ (instantiator, Qt) && !EQ (instantiator, Qnil)) | |
| 563 | 3276 invalid_constant ("Must be t or nil", instantiator); |
| 428 | 3277 } |
| 3278 | |
| 3279 DEFUN ("boolean-specifier-p", Fboolean_specifier_p, 1, 1, 0, /* | |
| 3280 Return non-nil if OBJECT is a boolean specifier. | |
| 442 | 3281 |
| 3282 See `make-boolean-specifier' for a description of possible boolean | |
| 3283 instantiators. | |
| 428 | 3284 */ |
| 3285 (object)) | |
| 3286 { | |
| 3287 return BOOLEAN_SPECIFIERP (object) ? Qt : Qnil; | |
| 3288 } | |
| 3289 | |
| 3290 /************************************************************************/ | |
| 3291 /* Display table specifier type */ | |
| 3292 /************************************************************************/ | |
| 3293 | |
| 3294 DEFINE_SPECIFIER_TYPE (display_table); | |
| 3295 | |
| 442 | 3296 #define VALID_SINGLE_DISPTABLE_INSTANTIATOR_P(instantiator) \ |
| 3297 (VECTORP (instantiator) \ | |
| 3298 || (CHAR_TABLEP (instantiator) \ | |
| 3299 && (XCHAR_TABLE_TYPE (instantiator) == CHAR_TABLE_TYPE_CHAR \ | |
| 3300 || XCHAR_TABLE_TYPE (instantiator) == CHAR_TABLE_TYPE_GENERIC)) \ | |
| 428 | 3301 || RANGE_TABLEP (instantiator)) |
| 3302 | |
| 3303 static void | |
| 3304 display_table_validate (Lisp_Object instantiator) | |
| 3305 { | |
| 3306 if (NILP (instantiator)) | |
| 3307 /* OK */ | |
| 3308 ; | |
| 3309 else if (CONSP (instantiator)) | |
| 3310 { | |
| 2367 | 3311 EXTERNAL_LIST_LOOP_2 (car, instantiator) |
| 428 | 3312 { |
| 3313 if (!VALID_SINGLE_DISPTABLE_INSTANTIATOR_P (car)) | |
| 3314 goto lose; | |
| 3315 } | |
| 3316 } | |
| 3317 else | |
| 3318 { | |
| 3319 if (!VALID_SINGLE_DISPTABLE_INSTANTIATOR_P (instantiator)) | |
| 3320 { | |
| 3321 lose: | |
| 442 | 3322 dead_wrong_type_argument |
| 3323 (display_table_specifier_methods->predicate_symbol, | |
| 428 | 3324 instantiator); |
| 3325 } | |
| 3326 } | |
| 3327 } | |
| 3328 | |
| 3329 DEFUN ("display-table-specifier-p", Fdisplay_table_specifier_p, 1, 1, 0, /* | |
| 3330 Return non-nil if OBJECT is a display-table specifier. | |
| 442 | 3331 |
| 3332 See `current-display-table' for a description of possible display-table | |
| 3333 instantiators. | |
| 428 | 3334 */ |
| 3335 (object)) | |
| 3336 { | |
| 3337 return DISPLAYTABLE_SPECIFIERP (object) ? Qt : Qnil; | |
| 3338 } | |
| 3339 | |
| 3340 | |
| 3341 /************************************************************************/ | |
| 3342 /* Initialization */ | |
| 3343 /************************************************************************/ | |
| 3344 | |
| 3345 void | |
| 3346 syms_of_specifier (void) | |
| 3347 { | |
|
5117
3742ea8250b5
Checking in final CVS version of workspace 'ben-lisp-object'
Ben Wing <ben@xemacs.org>
parents:
3017
diff
changeset
|
3348 INIT_LISP_OBJECT (specifier); |
| 442 | 3349 |
| 3350 DEFSYMBOL (Qspecifierp); | |
| 3351 | |
| 3352 DEFSYMBOL (Qconsole_type); | |
| 3353 DEFSYMBOL (Qdevice_class); | |
| 3354 | |
| 3355 /* specifier types defined in general.c. */ | |
| 428 | 3356 |
| 3357 DEFSUBR (Fvalid_specifier_type_p); | |
| 3358 DEFSUBR (Fspecifier_type_list); | |
| 3359 DEFSUBR (Fmake_specifier); | |
| 3360 DEFSUBR (Fspecifierp); | |
| 3361 DEFSUBR (Fspecifier_type); | |
| 3362 | |
| 3363 DEFSUBR (Fvalid_specifier_locale_p); | |
| 3364 DEFSUBR (Fvalid_specifier_domain_p); | |
| 3365 DEFSUBR (Fvalid_specifier_locale_type_p); | |
| 3366 DEFSUBR (Fspecifier_locale_type_from_locale); | |
| 3367 | |
| 3368 DEFSUBR (Fvalid_specifier_tag_p); | |
| 3369 DEFSUBR (Fvalid_specifier_tag_set_p); | |
| 3370 DEFSUBR (Fcanonicalize_tag_set); | |
| 3371 DEFSUBR (Fdevice_matches_specifier_tag_set_p); | |
| 3372 DEFSUBR (Fdefine_specifier_tag); | |
| 3373 DEFSUBR (Fdevice_matching_specifier_tag_list); | |
| 3374 DEFSUBR (Fspecifier_tag_list); | |
| 3375 DEFSUBR (Fspecifier_tag_predicate); | |
| 3376 | |
| 3377 DEFSUBR (Fcheck_valid_instantiator); | |
| 3378 DEFSUBR (Fvalid_instantiator_p); | |
| 3379 DEFSUBR (Fcheck_valid_inst_list); | |
| 3380 DEFSUBR (Fvalid_inst_list_p); | |
| 3381 DEFSUBR (Fcheck_valid_spec_list); | |
| 3382 DEFSUBR (Fvalid_spec_list_p); | |
| 3383 DEFSUBR (Fadd_spec_to_specifier); | |
| 3384 DEFSUBR (Fadd_spec_list_to_specifier); | |
| 3385 DEFSUBR (Fspecifier_spec_list); | |
| 3386 DEFSUBR (Fspecifier_specs); | |
| 3387 DEFSUBR (Fremove_specifier); | |
| 3388 DEFSUBR (Fcopy_specifier); | |
| 3389 | |
| 3390 DEFSUBR (Fcheck_valid_specifier_matchspec); | |
| 3391 DEFSUBR (Fvalid_specifier_matchspec_p); | |
| 3392 DEFSUBR (Fspecifier_fallback); | |
| 3393 DEFSUBR (Fspecifier_instance); | |
| 2953 | 3394 DEFSUBR (Fspecifier_instantiator); |
| 428 | 3395 DEFSUBR (Fspecifier_matching_instance); |
| 2953 | 3396 DEFSUBR (Fspecifier_matching_instantiator); |
| 428 | 3397 DEFSUBR (Fspecifier_instance_from_inst_list); |
| 2953 | 3398 DEFSUBR (Fspecifier_instantiator_from_inst_list); |
| 428 | 3399 DEFSUBR (Fspecifier_matching_instance_from_inst_list); |
| 2953 | 3400 DEFSUBR (Fspecifier_matching_instantiator_from_inst_list); |
| 428 | 3401 DEFSUBR (Fset_specifier_dirty_flag); |
| 3402 | |
| 3403 DEFSUBR (Fgeneric_specifier_p); | |
| 3404 DEFSUBR (Finteger_specifier_p); | |
| 3405 DEFSUBR (Fnatnum_specifier_p); | |
| 3406 DEFSUBR (Fboolean_specifier_p); | |
| 3407 DEFSUBR (Fdisplay_table_specifier_p); | |
| 3408 | |
| 3409 /* Symbols pertaining to specifier creation. Specifiers are created | |
| 3410 in the syms_of() functions. */ | |
| 3411 | |
| 3412 /* locales are defined in general.c. */ | |
| 3413 | |
| 442 | 3414 /* some how-to-add flags in general.c. */ |
| 3415 DEFSYMBOL (Qremove_tag_set_prepend); | |
| 3416 DEFSYMBOL (Qremove_tag_set_append); | |
| 3417 DEFSYMBOL (Qremove_locale); | |
| 3418 DEFSYMBOL (Qremove_locale_type); | |
| 428 | 3419 } |
| 3420 | |
| 3421 void | |
| 3422 specifier_type_create (void) | |
| 3423 { | |
| 3424 the_specifier_type_entry_dynarr = Dynarr_new (specifier_type_entry); | |
| 2367 | 3425 dump_add_root_block_ptr (&the_specifier_type_entry_dynarr, &sted_description); |
| 428 | 3426 |
| 3427 Vspecifier_type_list = Qnil; | |
| 3428 staticpro (&Vspecifier_type_list); | |
| 3429 | |
| 3430 INITIALIZE_SPECIFIER_TYPE (generic, "generic", "generic-specifier-p"); | |
| 3431 | |
| 3432 INITIALIZE_SPECIFIER_TYPE (integer, "integer", "integer-specifier-p"); | |
| 3433 | |
| 3434 SPECIFIER_HAS_METHOD (integer, validate); | |
| 3435 | |
| 3436 INITIALIZE_SPECIFIER_TYPE (natnum, "natnum", "natnum-specifier-p"); | |
| 3437 | |
| 3438 SPECIFIER_HAS_METHOD (natnum, validate); | |
| 3439 | |
| 3440 INITIALIZE_SPECIFIER_TYPE (boolean, "boolean", "boolean-specifier-p"); | |
| 3441 | |
| 3442 SPECIFIER_HAS_METHOD (boolean, validate); | |
| 3443 | |
| 442 | 3444 INITIALIZE_SPECIFIER_TYPE (display_table, "display-table", |
| 3445 "display-table-p"); | |
| 428 | 3446 |
| 3447 SPECIFIER_HAS_METHOD (display_table, validate); | |
| 3448 } | |
| 3449 | |
| 3450 void | |
| 3451 reinit_specifier_type_create (void) | |
| 3452 { | |
| 3453 REINITIALIZE_SPECIFIER_TYPE (generic); | |
| 3454 REINITIALIZE_SPECIFIER_TYPE (integer); | |
| 3455 REINITIALIZE_SPECIFIER_TYPE (natnum); | |
| 3456 REINITIALIZE_SPECIFIER_TYPE (boolean); | |
| 3457 REINITIALIZE_SPECIFIER_TYPE (display_table); | |
| 3458 } | |
| 3459 | |
| 3460 void | |
| 3461 vars_of_specifier (void) | |
| 3462 { | |
| 3463 Vcached_specifiers = Qnil; | |
| 3464 staticpro (&Vcached_specifiers); | |
| 3465 | |
| 3466 /* Do NOT mark through this, or specifiers will never be GC'd. | |
| 3467 This is the same deal as for weak hash tables. */ | |
| 3468 Vall_specifiers = Qnil; | |
| 452 | 3469 dump_add_weak_object_chain (&Vall_specifiers); |
| 428 | 3470 |
| 3471 Vuser_defined_tags = Qnil; | |
| 3472 staticpro (&Vuser_defined_tags); | |
| 3473 | |
| 3474 Vunlock_ghost_specifiers = Qnil; | |
| 3475 staticpro (&Vunlock_ghost_specifiers); | |
| 3476 } |