Commit | Line | Data |
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4ed46869 | 1 | /* Fontset handler. |
95df8112 | 2 | |
ab422c4d | 3 | Copyright (C) 2001-2013 Free Software Foundation, Inc. |
95df8112 GM |
4 | Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
5 | 2005, 2006, 2007, 2008, 2009, 2010, 2011 | |
6 | National Institute of Advanced Industrial Science and Technology (AIST) | |
7 | Registration Number H14PRO021 | |
8 | Copyright (C) 2003, 2006 | |
9 | National Institute of Advanced Industrial Science and Technology (AIST) | |
10 | Registration Number H13PRO009 | |
eb152aa9 | 11 | |
369314dc KH |
12 | This file is part of GNU Emacs. |
13 | ||
9ec0b715 | 14 | GNU Emacs is free software: you can redistribute it and/or modify |
369314dc | 15 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
16 | the Free Software Foundation, either version 3 of the License, or |
17 | (at your option) any later version. | |
4ed46869 | 18 | |
369314dc KH |
19 | GNU Emacs is distributed in the hope that it will be useful, |
20 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
22 | GNU General Public License for more details. | |
4ed46869 | 23 | |
369314dc | 24 | You should have received a copy of the GNU General Public License |
9ec0b715 | 25 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
4ed46869 KH |
26 | |
27 | #include <config.h> | |
0d407d77 | 28 | #include <stdio.h> |
0d407d77 | 29 | |
4ed46869 | 30 | #include "lisp.h" |
06f76f0d | 31 | #include "blockinput.h" |
06f76f0d | 32 | #include "character.h" |
e5560ff7 | 33 | #include "buffer.h" |
4ed46869 KH |
34 | #include "charset.h" |
35 | #include "ccl.h" | |
2538fae4 | 36 | #include "keyboard.h" |
4ed46869 | 37 | #include "frame.h" |
0d407d77 | 38 | #include "dispextern.h" |
e1a14cdc | 39 | #include "intervals.h" |
3541bb8f | 40 | #include "fontset.h" |
0d407d77 | 41 | #include "window.h" |
66738305 DA |
42 | #ifdef HAVE_WINDOW_SYSTEM |
43 | #include TERM_HEADER | |
44 | #endif /* HAVE_WINDOW_SYSTEM */ | |
fa971ac3 | 45 | #include "termhooks.h" |
8aa07a8d | 46 | #include "font.h" |
8aa07a8d | 47 | |
0d407d77 KH |
48 | /* FONTSET |
49 | ||
50 | A fontset is a collection of font related information to give | |
1d5d7200 KH |
51 | similar appearance (style, etc) of characters. A fontset has two |
52 | roles. One is to use for the frame parameter `font' as if it is an | |
53 | ASCII font. In that case, Emacs uses the font specified for | |
54 | `ascii' script for the frame's default font. | |
55 | ||
56 | Another role, the more important one, is to provide information | |
57 | about which font to use for each non-ASCII character. | |
58 | ||
59 | There are two kinds of fontsets; base and realized. A base fontset | |
60 | is created by `new-fontset' from Emacs Lisp explicitly. A realized | |
61 | fontset is created implicitly when a face is realized for ASCII | |
62 | characters. A face is also realized for non-ASCII characters based | |
63 | on an ASCII face. All of non-ASCII faces based on the same ASCII | |
64 | face share the same realized fontset. | |
8f924df7 | 65 | |
06f76f0d KH |
66 | A fontset object is implemented by a char-table whose default value |
67 | and parent are always nil. | |
fc8865fc | 68 | |
1d5d7200 KH |
69 | An element of a base fontset is a vector of FONT-DEFs which itself |
70 | is a vector [ FONT-SPEC ENCODING REPERTORY ]. | |
71 | ||
f088b054 KH |
72 | An element of a realized fontset is nil, t, 0, or a vector of this |
73 | form: | |
7e1a1cd9 | 74 | |
581f7ac7 KH |
75 | [ CHARSET-ORDERED-LIST-TICK PREFERRED-RFONT-DEF |
76 | RFONT-DEF0 RFONT-DEF1 ... ] | |
0d407d77 | 77 | |
7e1a1cd9 | 78 | RFONT-DEFn (i.e. Realized FONT-DEF) has this form: |
0d407d77 | 79 | |
581f7ac7 | 80 | [ FACE-ID FONT-DEF FONT-OBJECT SORTING-SCORE ] |
0d407d77 | 81 | |
581f7ac7 | 82 | RFONT-DEFn are automatically reordered by the current charset |
1d5d7200 | 83 | priority list. |
0d407d77 | 84 | |
7e1a1cd9 KH |
85 | The value nil means that we have not yet generated the above vector |
86 | from the base of the fontset. | |
0d407d77 | 87 | |
1d5d7200 KH |
88 | The value t means that no font is available for the corresponding |
89 | range of characters. | |
0d407d77 | 90 | |
f088b054 KH |
91 | The value 0 means that no font is available for the corresponding |
92 | range of characters in this fontset, but may be available in the | |
93 | default fontset. | |
94 | ||
0d407d77 | 95 | |
eb36588a | 96 | A fontset has 9 extra slots. |
0d407d77 | 97 | |
1d5d7200 | 98 | The 1st slot: the ID number of the fontset |
0d407d77 | 99 | |
1d5d7200 KH |
100 | The 2nd slot: |
101 | base: the name of the fontset | |
102 | realized: nil | |
0d407d77 | 103 | |
1d5d7200 | 104 | The 3rd slot: |
d6aaac9e | 105 | base: nil |
1d5d7200 | 106 | realized: the base fontset |
06f76f0d | 107 | |
1d5d7200 KH |
108 | The 4th slot: |
109 | base: nil | |
110 | realized: the frame that the fontset belongs to | |
0d407d77 | 111 | |
1d5d7200 KH |
112 | The 5th slot: |
113 | base: the font name for ASCII characters | |
114 | realized: nil | |
0d407d77 | 115 | |
1d5d7200 KH |
116 | The 6th slot: |
117 | base: nil | |
118 | realized: the ID number of a face to use for characters that | |
119 | has no font in a realized fontset. | |
0d407d77 | 120 | |
1d5d7200 KH |
121 | The 7th slot: |
122 | base: nil | |
123 | realized: Alist of font index vs the corresponding repertory | |
124 | char-table. | |
eb152aa9 | 125 | |
d6aaac9e KH |
126 | The 8th slot: |
127 | base: nil | |
128 | realized: If the base is not the default fontset, a fontset | |
129 | realized from the default fontset, else nil. | |
1d5d7200 | 130 | |
eb36588a | 131 | The 9th slot: |
cc7b6145 KH |
132 | base: Same as element value (but for fallback fonts). |
133 | realized: Likewise. | |
eb36588a | 134 | |
1d5d7200 | 135 | All fontsets are recorded in the vector Vfontset_table. |
0d407d77 KH |
136 | |
137 | ||
138 | DEFAULT FONTSET | |
139 | ||
1d5d7200 KH |
140 | There's a special base fontset named `default fontset' which |
141 | defines the default font specifications. When a base fontset | |
142 | doesn't specify a font for a specific character, the corresponding | |
143 | value in the default fontset is used. | |
0d407d77 | 144 | |
afe93d01 KH |
145 | The parent of a realized fontset created for such a face that has |
146 | no fontset is the default fontset. | |
0d407d77 KH |
147 | |
148 | ||
149 | These structures are hidden from the other codes than this file. | |
150 | The other codes handle fontsets only by their ID numbers. They | |
06f76f0d | 151 | usually use the variable name `fontset' for IDs. But, in this |
c80e3b4a | 152 | file, we always use variable name `id' for IDs, and name `fontset' |
1d5d7200 | 153 | for an actual fontset object, i.e., char-table. |
0d407d77 KH |
154 | |
155 | */ | |
156 | ||
157 | /********** VARIABLES and FUNCTION PROTOTYPES **********/ | |
158 | ||
d6aaac9e KH |
159 | static Lisp_Object Qfontset; |
160 | static Lisp_Object Qfontset_info; | |
1d5d7200 | 161 | static Lisp_Object Qprepend, Qappend; |
ef6e0694 | 162 | Lisp_Object Qlatin; |
0d407d77 KH |
163 | |
164 | /* Vector containing all fontsets. */ | |
165 | static Lisp_Object Vfontset_table; | |
166 | ||
fc8865fc | 167 | /* Next possibly free fontset ID. Usually this keeps the minimum |
0d407d77 KH |
168 | fontset ID not yet used. */ |
169 | static int next_fontset_id; | |
170 | ||
171 | /* The default fontset. This gives default FAMILY and REGISTRY of | |
06f76f0d | 172 | font for each character. */ |
0d407d77 | 173 | static Lisp_Object Vdefault_fontset; |
4ed46869 | 174 | |
0d407d77 | 175 | /* Prototype declarations for static functions. */ |
f57e2426 | 176 | static Lisp_Object make_fontset (Lisp_Object, Lisp_Object, Lisp_Object); |
2449d4d0 | 177 | |
a864ef14 | 178 | /* Return true if ID is a valid fontset id. |
e509cfa6 | 179 | Optimized away if ENABLE_CHECKING is not defined. */ |
556383ac | 180 | |
a864ef14 | 181 | static bool |
ef1b0ba7 | 182 | fontset_id_valid_p (int id) |
556383ac KH |
183 | { |
184 | return (id >= 0 && id < ASIZE (Vfontset_table) - 1); | |
185 | } | |
186 | ||
0d407d77 KH |
187 | |
188 | \f | |
189 | /********** MACROS AND FUNCTIONS TO HANDLE FONTSET **********/ | |
190 | ||
0d407d77 KH |
191 | /* Return the fontset with ID. No check of ID's validness. */ |
192 | #define FONTSET_FROM_ID(id) AREF (Vfontset_table, id) | |
193 | ||
d0d2d26f | 194 | /* Access special values of FONTSET. */ |
6d470bdd DA |
195 | |
196 | #define FONTSET_ID(fontset) XCHAR_TABLE (fontset)->extras[0] | |
d0d2d26f PE |
197 | static void |
198 | set_fontset_id (Lisp_Object fontset, Lisp_Object id) | |
199 | { | |
200 | set_char_table_extras (fontset, 0, id); | |
201 | } | |
06f76f0d | 202 | |
d0d2d26f | 203 | /* Access special values of (base) FONTSET. */ |
6d470bdd DA |
204 | |
205 | #define FONTSET_NAME(fontset) XCHAR_TABLE (fontset)->extras[1] | |
d0d2d26f PE |
206 | static void |
207 | set_fontset_name (Lisp_Object fontset, Lisp_Object name) | |
208 | { | |
209 | set_char_table_extras (fontset, 1, name); | |
210 | } | |
6d470bdd DA |
211 | |
212 | #define FONTSET_ASCII(fontset) XCHAR_TABLE (fontset)->extras[4] | |
d0d2d26f PE |
213 | static void |
214 | set_fontset_ascii (Lisp_Object fontset, Lisp_Object ascii) | |
215 | { | |
216 | set_char_table_extras (fontset, 4, ascii); | |
217 | } | |
06f76f0d | 218 | |
d0d2d26f | 219 | /* Access special values of (realized) FONTSET. */ |
6d470bdd DA |
220 | |
221 | #define FONTSET_BASE(fontset) XCHAR_TABLE (fontset)->extras[2] | |
d0d2d26f PE |
222 | static void |
223 | set_fontset_base (Lisp_Object fontset, Lisp_Object base) | |
224 | { | |
225 | set_char_table_extras (fontset, 2, base); | |
226 | } | |
6d470bdd DA |
227 | |
228 | #define FONTSET_FRAME(fontset) XCHAR_TABLE (fontset)->extras[3] | |
d0d2d26f PE |
229 | static void |
230 | set_fontset_frame (Lisp_Object fontset, Lisp_Object frame) | |
231 | { | |
232 | set_char_table_extras (fontset, 3, frame); | |
233 | } | |
6d470bdd DA |
234 | |
235 | #define FONTSET_NOFONT_FACE(fontset) XCHAR_TABLE (fontset)->extras[5] | |
d0d2d26f PE |
236 | static void |
237 | set_fontset_nofont_face (Lisp_Object fontset, Lisp_Object face) | |
238 | { | |
239 | set_char_table_extras (fontset, 5, face); | |
240 | } | |
6d470bdd DA |
241 | |
242 | #define FONTSET_DEFAULT(fontset) XCHAR_TABLE (fontset)->extras[7] | |
d0d2d26f PE |
243 | static void |
244 | set_fontset_default (Lisp_Object fontset, Lisp_Object def) | |
245 | { | |
246 | set_char_table_extras (fontset, 7, def); | |
247 | } | |
eb36588a | 248 | |
cc7b6145 | 249 | /* For both base and realized fontset. */ |
0d407d77 | 250 | |
6d470bdd | 251 | #define FONTSET_FALLBACK(fontset) XCHAR_TABLE (fontset)->extras[8] |
d0d2d26f PE |
252 | static void |
253 | set_fontset_fallback (Lisp_Object fontset, Lisp_Object fallback) | |
254 | { | |
255 | set_char_table_extras (fontset, 8, fallback); | |
256 | } | |
0d407d77 | 257 | |
6d470bdd | 258 | #define BASE_FONTSET_P(fontset) (NILP (FONTSET_BASE (fontset))) |
0d407d77 | 259 | |
581f7ac7 KH |
260 | /* Macros for FONT-DEF and RFONT-DEF of fontset. */ |
261 | #define FONT_DEF_NEW(font_def, font_spec, encoding, repertory) \ | |
262 | do { \ | |
25721f5b DA |
263 | (font_def) = make_uninit_vector (3); \ |
264 | ASET ((font_def), 0, font_spec); \ | |
581f7ac7 KH |
265 | ASET ((font_def), 1, encoding); \ |
266 | ASET ((font_def), 2, repertory); \ | |
267 | } while (0) | |
268 | ||
269 | #define FONT_DEF_SPEC(font_def) AREF (font_def, 0) | |
270 | #define FONT_DEF_ENCODING(font_def) AREF (font_def, 1) | |
271 | #define FONT_DEF_REPERTORY(font_def) AREF (font_def, 2) | |
272 | ||
273 | #define RFONT_DEF_FACE(rfont_def) AREF (rfont_def, 0) | |
274 | #define RFONT_DEF_SET_FACE(rfont_def, face_id) \ | |
275 | ASET ((rfont_def), 0, make_number (face_id)) | |
276 | #define RFONT_DEF_FONT_DEF(rfont_def) AREF (rfont_def, 1) | |
277 | #define RFONT_DEF_SPEC(rfont_def) FONT_DEF_SPEC (AREF (rfont_def, 1)) | |
581f7ac7 KH |
278 | #define RFONT_DEF_OBJECT(rfont_def) AREF (rfont_def, 2) |
279 | #define RFONT_DEF_SET_OBJECT(rfont_def, object) \ | |
280 | ASET ((rfont_def), 2, (object)) | |
9dfdbc0a KH |
281 | /* Score of RFONT_DEF is an integer value; the lowest 8 bits represent |
282 | the order of listing by font backends, the higher bits represents | |
283 | the order given by charset priority list. The smaller value is | |
284 | preferable. */ | |
581f7ac7 KH |
285 | #define RFONT_DEF_SCORE(rfont_def) XINT (AREF (rfont_def, 3)) |
286 | #define RFONT_DEF_SET_SCORE(rfont_def, score) \ | |
287 | ASET ((rfont_def), 3, make_number (score)) | |
288 | #define RFONT_DEF_NEW(rfont_def, font_def) \ | |
289 | do { \ | |
290 | (rfont_def) = Fmake_vector (make_number (4), Qnil); \ | |
6d470bdd | 291 | ASET ((rfont_def), 1, (font_def)); \ |
581f7ac7 KH |
292 | RFONT_DEF_SET_SCORE ((rfont_def), 0); \ |
293 | } while (0) | |
294 | ||
295 | ||
1d5d7200 KH |
296 | /* Return the element of FONTSET for the character C. If FONTSET is a |
297 | base fontset other then the default fontset and FONTSET doesn't | |
298 | contain information for C, return the information in the default | |
299 | fontset. */ | |
0d407d77 | 300 | |
1d5d7200 KH |
301 | #define FONTSET_REF(fontset, c) \ |
302 | (EQ (fontset, Vdefault_fontset) \ | |
303 | ? CHAR_TABLE_REF (fontset, c) \ | |
304 | : fontset_ref ((fontset), (c))) | |
0d407d77 | 305 | |
afe93d01 | 306 | static Lisp_Object |
971de7fb | 307 | fontset_ref (Lisp_Object fontset, int c) |
0d407d77 | 308 | { |
06f76f0d KH |
309 | Lisp_Object elt; |
310 | ||
1d5d7200 KH |
311 | elt = CHAR_TABLE_REF (fontset, c); |
312 | if (NILP (elt) && ! EQ (fontset, Vdefault_fontset) | |
313 | /* Don't check Vdefault_fontset for a realized fontset. */ | |
314 | && NILP (FONTSET_BASE (fontset))) | |
315 | elt = CHAR_TABLE_REF (Vdefault_fontset, c); | |
0d407d77 KH |
316 | return elt; |
317 | } | |
318 | ||
1d5d7200 KH |
319 | /* Set elements of FONTSET for characters in RANGE to the value ELT. |
320 | RANGE is a cons (FROM . TO), where FROM and TO are character codes | |
321 | specifying a range. */ | |
322 | ||
323 | #define FONTSET_SET(fontset, range, elt) \ | |
324 | Fset_char_table_range ((fontset), (range), (elt)) | |
325 | ||
0d407d77 | 326 | |
1d5d7200 | 327 | /* Modify the elements of FONTSET for characters in RANGE by replacing |
6bad8007 | 328 | with ELT or adding ELT. RANGE is a cons (FROM . TO), where FROM |
1d5d7200 KH |
329 | and TO are character codes specifying a range. If ADD is nil, |
330 | replace with ELT, if ADD is `prepend', prepend ELT, otherwise, | |
331 | append ELT. */ | |
332 | ||
6d470bdd DA |
333 | #define FONTSET_ADD(fontset, range, elt, add) \ |
334 | (NILP (add) \ | |
335 | ? (NILP (range) \ | |
d0d2d26f | 336 | ? (set_fontset_fallback \ |
6d470bdd | 337 | (fontset, Fmake_vector (make_number (1), (elt)))) \ |
d733ec6d PE |
338 | : ((void) \ |
339 | Fset_char_table_range (fontset, range, \ | |
340 | Fmake_vector (make_number (1), elt)))) \ | |
1d5d7200 | 341 | : fontset_add ((fontset), (range), (elt), (add))) |
0d407d77 | 342 | |
d733ec6d | 343 | static void |
971de7fb | 344 | fontset_add (Lisp_Object fontset, Lisp_Object range, Lisp_Object elt, Lisp_Object add) |
06f76f0d | 345 | { |
eb36588a KH |
346 | Lisp_Object args[2]; |
347 | int idx = (EQ (add, Qappend) ? 0 : 1); | |
348 | ||
349 | args[1 - idx] = Fmake_vector (make_number (1), elt); | |
350 | ||
351 | if (CONSP (range)) | |
352 | { | |
353 | int from = XINT (XCAR (range)); | |
354 | int to = XINT (XCDR (range)); | |
355 | int from1, to1; | |
356 | ||
357 | do { | |
5b30be1a | 358 | from1 = from, to1 = to; |
eb36588a | 359 | args[idx] = char_table_ref_and_range (fontset, from, &from1, &to1); |
eb36588a KH |
360 | char_table_set_range (fontset, from, to1, |
361 | NILP (args[idx]) ? args[1 - idx] | |
362 | : Fvconcat (2, args)); | |
363 | from = to1 + 1; | |
364 | } while (from < to); | |
365 | } | |
366 | else | |
367 | { | |
368 | args[idx] = FONTSET_FALLBACK (fontset); | |
d0d2d26f | 369 | set_fontset_fallback |
6d470bdd | 370 | (fontset, NILP (args[idx]) ? args[1 - idx] : Fvconcat (2, args)); |
eb36588a | 371 | } |
1d5d7200 KH |
372 | } |
373 | ||
581f7ac7 | 374 | static int |
971de7fb | 375 | fontset_compare_rfontdef (const void *val1, const void *val2) |
581f7ac7 | 376 | { |
41ad6003 KH |
377 | return (RFONT_DEF_SCORE (*(Lisp_Object *) val1) |
378 | - RFONT_DEF_SCORE (*(Lisp_Object *) val2)); | |
581f7ac7 | 379 | } |
1d5d7200 | 380 | |
ea0162a6 | 381 | /* Update FONT-GROUP which has this form: |
581f7ac7 KH |
382 | [ CHARSET-ORDERED-LIST-TICK PREFERRED-RFONT-DEF |
383 | RFONT-DEF0 RFONT-DEF1 ... ] | |
20746fe4 | 384 | Reorder RFONT-DEFs according to the current language, and update |
581f7ac7 KH |
385 | CHARSET-ORDERED-LIST-TICK. |
386 | ||
387 | If PREFERRED_FAMILY is not nil, that family has the higher priority | |
388 | if the encoding charsets or languages in font-specs are the same. */ | |
389 | ||
0d407d77 | 390 | static void |
971de7fb | 391 | reorder_font_vector (Lisp_Object font_group, struct font *font) |
1d5d7200 | 392 | { |
41ad6003 | 393 | Lisp_Object vec, font_object; |
1d5d7200 | 394 | int size; |
581f7ac7 | 395 | int i; |
a864ef14 | 396 | bool score_changed = 0; |
1d5d7200 | 397 | |
41ad6003 KH |
398 | if (font) |
399 | XSETFONT (font_object, font); | |
400 | else | |
401 | font_object = Qnil; | |
402 | ||
403 | vec = XCDR (font_group); | |
404 | size = ASIZE (vec); | |
405 | /* Exclude the tailing nil element from the reordering. */ | |
406 | if (NILP (AREF (vec, size - 1))) | |
407 | size--; | |
581f7ac7 KH |
408 | |
409 | for (i = 0; i < size; i++) | |
6bad8007 | 410 | { |
41ad6003 | 411 | Lisp_Object rfont_def = AREF (vec, i); |
581f7ac7 KH |
412 | Lisp_Object font_def = RFONT_DEF_FONT_DEF (rfont_def); |
413 | Lisp_Object font_spec = FONT_DEF_SPEC (font_def); | |
41ad6003 | 414 | int score = RFONT_DEF_SCORE (rfont_def) & 0xFF; |
9dfdbc0a | 415 | Lisp_Object otf_spec = Ffont_get (font_spec, QCotf); |
581f7ac7 | 416 | |
9dfdbc0a KH |
417 | if (! NILP (otf_spec)) |
418 | /* A font-spec with :otf is preferable regardless of encoding | |
419 | and language.. */ | |
420 | ; | |
421 | else if (! font_match_p (font_spec, font_object)) | |
eb152aa9 | 422 | { |
cd872f08 | 423 | Lisp_Object encoding = FONT_DEF_ENCODING (font_def); |
581f7ac7 | 424 | |
cd872f08 | 425 | if (! NILP (encoding)) |
41ad6003 KH |
426 | { |
427 | Lisp_Object tail; | |
581f7ac7 | 428 | |
41ad6003 KH |
429 | for (tail = Vcharset_ordered_list; |
430 | ! EQ (tail, Vcharset_non_preferred_head) && CONSP (tail); | |
d311d28c | 431 | tail = XCDR (tail)) |
cd872f08 | 432 | if (EQ (encoding, XCAR (tail))) |
41ad6003 | 433 | break; |
2972b14b | 434 | else if (score <= min (INT_MAX, MOST_POSITIVE_FIXNUM) - 0x100) |
d311d28c | 435 | score += 0x100; |
41ad6003 KH |
436 | } |
437 | else | |
438 | { | |
439 | Lisp_Object lang = Ffont_get (font_spec, QClang); | |
440 | ||
441 | if (! NILP (lang) | |
442 | && ! EQ (lang, Vcurrent_iso639_language) | |
443 | && (! CONSP (Vcurrent_iso639_language) | |
444 | || NILP (Fmemq (lang, Vcurrent_iso639_language)))) | |
445 | score |= 0x100; | |
446 | } | |
ea0162a6 | 447 | } |
581f7ac7 | 448 | if (RFONT_DEF_SCORE (rfont_def) != score) |
ea0162a6 | 449 | { |
581f7ac7 KH |
450 | RFONT_DEF_SET_SCORE (rfont_def, score); |
451 | score_changed = 1; | |
ea0162a6 | 452 | } |
6bad8007 | 453 | } |
1d5d7200 | 454 | |
581f7ac7 | 455 | if (score_changed) |
d6d9cbc1 | 456 | qsort (XVECTOR (vec)->u.contents, size, word_size, |
581f7ac7 | 457 | fontset_compare_rfontdef); |
41ad6003 KH |
458 | XSETCAR (font_group, make_number (charset_ordered_list_tick)); |
459 | } | |
460 | ||
f084f942 KH |
461 | /* Return a font-group (actually a cons (-1 . FONT-GROUP-VECTOR)) for |
462 | character C in FONTSET. If C is -1, return a fallback font-group. | |
463 | If C is not -1, the value may be Qt (FONTSET doesn't have a font | |
ea180610 | 464 | for C even in the fallback group), or 0 (a font for C may be found |
f084f942 KH |
465 | only in the fallback group). */ |
466 | ||
41ad6003 | 467 | static Lisp_Object |
3cba9369 | 468 | fontset_get_font_group (Lisp_Object fontset, int c) |
41ad6003 KH |
469 | { |
470 | Lisp_Object font_group; | |
471 | Lisp_Object base_fontset; | |
5b30be1a | 472 | int from = 0, to = MAX_CHAR, i; |
28e2436a | 473 | |
a54e2c05 | 474 | eassert (! BASE_FONTSET_P (fontset)); |
41ad6003 KH |
475 | if (c >= 0) |
476 | font_group = CHAR_TABLE_REF (fontset, c); | |
477 | else | |
478 | font_group = FONTSET_FALLBACK (fontset); | |
479 | if (! NILP (font_group)) | |
480 | return font_group; | |
481 | base_fontset = FONTSET_BASE (fontset); | |
ea180610 AS |
482 | if (NILP (base_fontset)) |
483 | font_group = Qnil; | |
484 | else if (c >= 0) | |
41ad6003 KH |
485 | font_group = char_table_ref_and_range (base_fontset, c, &from, &to); |
486 | else | |
487 | font_group = FONTSET_FALLBACK (base_fontset); | |
488 | if (NILP (font_group)) | |
f088b054 | 489 | { |
f084f942 | 490 | font_group = make_number (0); |
f088b054 | 491 | if (c >= 0) |
f084f942 KH |
492 | char_table_set_range (fontset, from, to, font_group); |
493 | return font_group; | |
f088b054 | 494 | } |
ea180610 AS |
495 | if (!VECTORP (font_group)) |
496 | return font_group; | |
41ad6003 KH |
497 | font_group = Fcopy_sequence (font_group); |
498 | for (i = 0; i < ASIZE (font_group); i++) | |
499 | if (! NILP (AREF (font_group, i))) | |
500 | { | |
501 | Lisp_Object rfont_def; | |
502 | ||
503 | RFONT_DEF_NEW (rfont_def, AREF (font_group, i)); | |
504 | /* Remember the original order. */ | |
505 | RFONT_DEF_SET_SCORE (rfont_def, i); | |
506 | ASET (font_group, i, rfont_def); | |
507 | } | |
508 | font_group = Fcons (make_number (-1), font_group); | |
509 | if (c >= 0) | |
510 | char_table_set_range (fontset, from, to, font_group); | |
511 | else | |
d0d2d26f | 512 | set_fontset_fallback (fontset, font_group); |
41ad6003 | 513 | return font_group; |
0d407d77 KH |
514 | } |
515 | ||
7e1a1cd9 | 516 | /* Return RFONT-DEF (vector) in the realized fontset FONTSET for the |
d67f7f1a KH |
517 | character C. If no font is found, return Qnil if there's a |
518 | possibility that the default fontset or the fallback font groups | |
519 | have a proper font, and return Qt if not. | |
520 | ||
521 | If a font is found but is not yet opened, open it (if FACE is not | |
522 | NULL) or return Qnil (if FACE is NULL). | |
523 | ||
1c82b4b3 KH |
524 | ID is a charset-id that must be preferred, or -1 meaning no |
525 | preference. | |
d67f7f1a | 526 | |
a864ef14 | 527 | If FALLBACK, search only fallback fonts. */ |
0d407d77 | 528 | |
7e1a1cd9 | 529 | static Lisp_Object |
a864ef14 PE |
530 | fontset_find_font (Lisp_Object fontset, int c, struct face *face, int id, |
531 | bool fallback) | |
0d407d77 | 532 | { |
162f5458 | 533 | Lisp_Object vec, font_group; |
374bf7e4 | 534 | int i, charset_matched = 0, found_index; |
a10c8269 DA |
535 | struct frame *f = (FRAMEP (FONTSET_FRAME (fontset)) |
536 | ? XFRAME (FONTSET_FRAME (fontset)) | |
537 | : XFRAME (selected_frame)); | |
a71ccf3a | 538 | Lisp_Object rfont_def; |
0d407d77 | 539 | |
41ad6003 KH |
540 | font_group = fontset_get_font_group (fontset, fallback ? -1 : c); |
541 | if (! CONSP (font_group)) | |
bf86d09c | 542 | return font_group; |
41ad6003 KH |
543 | vec = XCDR (font_group); |
544 | if (ASIZE (vec) == 0) | |
545 | return Qnil; | |
eaa0402c | 546 | |
41ad6003 | 547 | if (ASIZE (vec) > 1) |
1d5d7200 | 548 | { |
41ad6003 KH |
549 | if (XINT (XCAR (font_group)) != charset_ordered_list_tick) |
550 | /* We have just created the font-group, | |
551 | or the charset priorities were changed. */ | |
552 | reorder_font_vector (font_group, face->ascii_face->font); | |
553 | if (id >= 0) | |
554 | /* Find a spec matching with the charset ID to try at | |
555 | first. */ | |
556 | for (i = 0; i < ASIZE (vec); i++) | |
557 | { | |
0ff75233 KH |
558 | Lisp_Object repertory; |
559 | ||
a71ccf3a | 560 | rfont_def = AREF (vec, i); |
0ff75233 KH |
561 | if (NILP (rfont_def)) |
562 | break; | |
563 | repertory = FONT_DEF_REPERTORY (RFONT_DEF_FONT_DEF (rfont_def)); | |
41ad6003 KH |
564 | |
565 | if (XINT (repertory) == id) | |
eaa0402c | 566 | { |
41ad6003 | 567 | charset_matched = i; |
581f7ac7 | 568 | break; |
41ad6003 KH |
569 | } |
570 | } | |
581f7ac7 | 571 | } |
1d5d7200 | 572 | |
7e1a1cd9 | 573 | /* Find the first available font in the vector of RFONT-DEF. */ |
41ad6003 | 574 | for (i = 0; i < ASIZE (vec); i++) |
0d407d77 | 575 | { |
a71ccf3a | 576 | Lisp_Object font_def; |
dbf46ba6 | 577 | Lisp_Object font_entity, font_object; |
581f7ac7 | 578 | |
635c75b1 | 579 | found_index = i; |
374bf7e4 | 580 | if (i == 0) |
41ad6003 | 581 | { |
374bf7e4 KH |
582 | if (charset_matched > 0) |
583 | { | |
635c75b1 KH |
584 | /* Try the element matching with the charset ID at first. */ |
585 | found_index = charset_matched; | |
586 | /* Make this negative so that we don't come here in the | |
587 | next loop. */ | |
374bf7e4 | 588 | charset_matched = - charset_matched; |
635c75b1 | 589 | /* We must try the first element in the next loop. */ |
374bf7e4 KH |
590 | i--; |
591 | } | |
41ad6003 | 592 | } |
635c75b1 | 593 | else if (i == - charset_matched) |
374bf7e4 KH |
594 | { |
595 | /* We have already tried this element and the followings | |
635c75b1 KH |
596 | that have the same font specifications in the first |
597 | iteration. So, skip them all. */ | |
374bf7e4 KH |
598 | rfont_def = AREF (vec, i); |
599 | font_def = RFONT_DEF_FONT_DEF (rfont_def); | |
600 | for (; i + 1 < ASIZE (vec); i++) | |
601 | { | |
602 | rfont_def = AREF (vec, i + 1); | |
603 | if (NILP (rfont_def)) | |
604 | break; | |
605 | if (! EQ (RFONT_DEF_FONT_DEF (rfont_def), font_def)) | |
606 | break; | |
607 | } | |
608 | continue; | |
609 | } | |
41ad6003 | 610 | |
374bf7e4 | 611 | rfont_def = AREF (vec, found_index); |
162f5458 | 612 | if (NILP (rfont_def)) |
374bf7e4 | 613 | { |
635c75b1 | 614 | if (i < 0) |
374bf7e4 KH |
615 | continue; |
616 | /* This is a sign of not to try the other fonts. */ | |
617 | return Qt; | |
618 | } | |
162f5458 KH |
619 | if (INTEGERP (RFONT_DEF_FACE (rfont_def)) |
620 | && XINT (RFONT_DEF_FACE (rfont_def)) < 0) | |
1d5d7200 KH |
621 | /* We couldn't open this font last time. */ |
622 | continue; | |
623 | ||
162f5458 | 624 | font_object = RFONT_DEF_OBJECT (rfont_def); |
581f7ac7 | 625 | if (NILP (font_object)) |
8aa07a8d | 626 | { |
162f5458 | 627 | font_def = RFONT_DEF_FONT_DEF (rfont_def); |
d67f7f1a | 628 | |
581f7ac7 KH |
629 | if (! face) |
630 | /* We have not yet opened the font. */ | |
631 | return Qnil; | |
162f5458 KH |
632 | /* Find a font best-matching with the spec without checking |
633 | the support of the character C. That checking is costly, | |
634 | and even without the checking, the found font supports C | |
635 | in high possibility. */ | |
581f7ac7 KH |
636 | font_entity = font_find_for_lface (f, face->lface, |
637 | FONT_DEF_SPEC (font_def), -1); | |
d67f7f1a | 638 | if (NILP (font_entity)) |
8b67c40a | 639 | { |
581f7ac7 | 640 | /* Record that no font matches the spec. */ |
162f5458 | 641 | RFONT_DEF_SET_FACE (rfont_def, -1); |
581f7ac7 | 642 | continue; |
d67f7f1a | 643 | } |
ca2b2cde KH |
644 | font_object = font_open_for_lface (f, font_entity, face->lface, |
645 | FONT_DEF_SPEC (font_def)); | |
581f7ac7 | 646 | if (NILP (font_object)) |
d67f7f1a | 647 | { |
162f5458 KH |
648 | /* Something strange happened, perhaps because of a |
649 | Font-backend problem. Too avoid crashing, record | |
ee7683eb | 650 | that this spec is unusable. It may be better to find |
162f5458 KH |
651 | another font of the same spec, but currently we don't |
652 | have such an API. */ | |
653 | RFONT_DEF_SET_FACE (rfont_def, -1); | |
581f7ac7 | 654 | continue; |
8aa07a8d | 655 | } |
162f5458 | 656 | RFONT_DEF_SET_OBJECT (rfont_def, font_object); |
8aa07a8d | 657 | } |
eb152aa9 | 658 | |
581f7ac7 | 659 | if (font_has_char (f, font_object, c)) |
a71ccf3a | 660 | goto found; |
581f7ac7 | 661 | |
333f9019 | 662 | /* Find a font already opened, matching with the current spec, |
162f5458 KH |
663 | and supporting C. */ |
664 | font_def = RFONT_DEF_FONT_DEF (rfont_def); | |
374bf7e4 | 665 | for (; found_index + 1 < ASIZE (vec); found_index++) |
57e13af9 | 666 | { |
374bf7e4 | 667 | rfont_def = AREF (vec, found_index + 1); |
7d72bb82 | 668 | if (NILP (rfont_def)) |
374bf7e4 | 669 | break; |
162f5458 | 670 | if (! EQ (RFONT_DEF_FONT_DEF (rfont_def), font_def)) |
581f7ac7 | 671 | break; |
374bf7e4 | 672 | font_object = RFONT_DEF_OBJECT (rfont_def); |
69a8e484 | 673 | if (! NILP (font_object) && font_has_char (f, font_object, c)) |
374bf7e4 KH |
674 | { |
675 | found_index++; | |
676 | goto found; | |
677 | } | |
57e13af9 | 678 | } |
162f5458 KH |
679 | |
680 | /* Find a font-entity with the current spec and supporting C. */ | |
581f7ac7 KH |
681 | font_entity = font_find_for_lface (f, face->lface, |
682 | FONT_DEF_SPEC (font_def), c); | |
683 | if (! NILP (font_entity)) | |
1d5d7200 | 684 | { |
162f5458 KH |
685 | /* We found a font. Open it and insert a new element for |
686 | that font in VEC. */ | |
687 | Lisp_Object new_vec; | |
581f7ac7 | 688 | int j; |
1d5d7200 | 689 | |
581f7ac7 KH |
690 | font_object = font_open_for_lface (f, font_entity, face->lface, |
691 | Qnil); | |
162f5458 KH |
692 | if (NILP (font_object)) |
693 | continue; | |
581f7ac7 KH |
694 | RFONT_DEF_NEW (rfont_def, font_def); |
695 | RFONT_DEF_SET_OBJECT (rfont_def, font_object); | |
162f5458 | 696 | RFONT_DEF_SET_SCORE (rfont_def, RFONT_DEF_SCORE (rfont_def)); |
581f7ac7 | 697 | new_vec = Fmake_vector (make_number (ASIZE (vec) + 1), Qnil); |
374bf7e4 KH |
698 | found_index++; |
699 | for (j = 0; j < found_index; j++) | |
581f7ac7 KH |
700 | ASET (new_vec, j, AREF (vec, j)); |
701 | ASET (new_vec, j, rfont_def); | |
702 | for (j++; j < ASIZE (new_vec); j++) | |
703 | ASET (new_vec, j, AREF (vec, j - 1)); | |
162f5458 | 704 | XSETCDR (font_group, new_vec); |
a71ccf3a KH |
705 | vec = new_vec; |
706 | goto found; | |
1d5d7200 | 707 | } |
374bf7e4 KH |
708 | if (i >= 0) |
709 | i = found_index; | |
0d407d77 | 710 | } |
d67f7f1a | 711 | |
581f7ac7 | 712 | FONTSET_SET (fontset, make_number (c), make_number (0)); |
eaa0402c | 713 | return Qnil; |
a71ccf3a KH |
714 | |
715 | found: | |
716 | if (fallback && found_index > 0) | |
717 | { | |
718 | /* The order of fonts in the fallback font-group is not that | |
719 | important, and it is better to move the found font to the | |
720 | first of the group so that the next try will find it | |
721 | quickly. */ | |
722 | for (i = found_index; i > 0; i--) | |
723 | ASET (vec, i, AREF (vec, i - 1)); | |
724 | ASET (vec, 0, rfont_def); | |
725 | } | |
726 | return rfont_def; | |
1c82b4b3 | 727 | } |
0d407d77 | 728 | |
cc7b6145 | 729 | |
1c82b4b3 | 730 | static Lisp_Object |
971de7fb | 731 | fontset_font (Lisp_Object fontset, int c, struct face *face, int id) |
1c82b4b3 | 732 | { |
cc6e5db1 | 733 | Lisp_Object rfont_def, default_rfont_def IF_LINT (= Qnil); |
1c82b4b3 | 734 | Lisp_Object base_fontset; |
cc7b6145 | 735 | |
41ad6003 | 736 | /* Try a font-group of FONTSET. */ |
b23bf85a | 737 | FONT_DEFERRED_LOG ("current fontset: font for", make_number (c), Qnil); |
1c82b4b3 | 738 | rfont_def = fontset_find_font (fontset, c, face, id, 0); |
eaa0402c KH |
739 | if (VECTORP (rfont_def)) |
740 | return rfont_def; | |
f084f942 KH |
741 | if (NILP (rfont_def)) |
742 | FONTSET_SET (fontset, make_number (c), make_number (0)); | |
41ad6003 KH |
743 | |
744 | /* Try a font-group of the default fontset. */ | |
745 | base_fontset = FONTSET_BASE (fontset); | |
746 | if (! EQ (base_fontset, Vdefault_fontset)) | |
747 | { | |
748 | if (NILP (FONTSET_DEFAULT (fontset))) | |
d0d2d26f | 749 | set_fontset_default |
6d470bdd DA |
750 | (fontset, |
751 | make_fontset (FONTSET_FRAME (fontset), Qnil, Vdefault_fontset)); | |
b23bf85a | 752 | FONT_DEFERRED_LOG ("default fontset: font for", make_number (c), Qnil); |
f084f942 KH |
753 | default_rfont_def |
754 | = fontset_find_font (FONTSET_DEFAULT (fontset), c, face, id, 0); | |
755 | if (VECTORP (default_rfont_def)) | |
756 | return default_rfont_def; | |
757 | if (NILP (default_rfont_def)) | |
758 | FONTSET_SET (FONTSET_DEFAULT (fontset), make_number (c), | |
759 | make_number (0)); | |
41ad6003 KH |
760 | } |
761 | ||
762 | /* Try a fallback font-group of FONTSET. */ | |
f084f942 KH |
763 | if (! EQ (rfont_def, Qt)) |
764 | { | |
765 | FONT_DEFERRED_LOG ("current fallback: font for", make_number (c), Qnil); | |
766 | rfont_def = fontset_find_font (fontset, c, face, id, 1); | |
767 | if (VECTORP (rfont_def)) | |
768 | return rfont_def; | |
769 | /* Remember that FONTSET has no font for C. */ | |
770 | FONTSET_SET (fontset, make_number (c), Qt); | |
771 | } | |
d67f7f1a | 772 | |
f084f942 KH |
773 | /* Try a fallback font-group of the default fontset. */ |
774 | if (! EQ (base_fontset, Vdefault_fontset) | |
775 | && ! EQ (default_rfont_def, Qt)) | |
41ad6003 | 776 | { |
b23bf85a | 777 | FONT_DEFERRED_LOG ("default fallback: font for", make_number (c), Qnil); |
41ad6003 KH |
778 | rfont_def = fontset_find_font (FONTSET_DEFAULT (fontset), c, face, id, 1); |
779 | if (VECTORP (rfont_def)) | |
780 | return rfont_def; | |
f084f942 KH |
781 | /* Remember that the default fontset has no font for C. */ |
782 | FONTSET_SET (FONTSET_DEFAULT (fontset), make_number (c), Qt); | |
41ad6003 KH |
783 | } |
784 | ||
41ad6003 | 785 | return Qnil; |
0d407d77 KH |
786 | } |
787 | ||
0d407d77 | 788 | /* Return a newly created fontset with NAME. If BASE is nil, make a |
06f76f0d | 789 | base fontset. Otherwise make a realized fontset whose base is |
0d407d77 KH |
790 | BASE. */ |
791 | ||
792 | static Lisp_Object | |
971de7fb | 793 | make_fontset (Lisp_Object frame, Lisp_Object name, Lisp_Object base) |
4ed46869 | 794 | { |
1337ac77 | 795 | Lisp_Object fontset; |
0d407d77 KH |
796 | int size = ASIZE (Vfontset_table); |
797 | int id = next_fontset_id; | |
0d407d77 KH |
798 | |
799 | /* Find a free slot in Vfontset_table. Usually, next_fontset_id is | |
800 | the next available fontset ID. So it is expected that this loop | |
801 | terminates quickly. In addition, as the last element of | |
fc8865fc | 802 | Vfontset_table is always nil, we don't have to check the range of |
0d407d77 KH |
803 | id. */ |
804 | while (!NILP (AREF (Vfontset_table, id))) id++; | |
805 | ||
806 | if (id + 1 == size) | |
d311d28c | 807 | Vfontset_table = larger_vector (Vfontset_table, 1, -1); |
4ed46869 | 808 | |
11d9bd93 | 809 | fontset = Fmake_char_table (Qfontset, Qnil); |
0d407d77 | 810 | |
d0d2d26f | 811 | set_fontset_id (fontset, make_number (id)); |
06f76f0d | 812 | if (NILP (base)) |
d0d2d26f | 813 | set_fontset_name (fontset, name); |
06f76f0d KH |
814 | else |
815 | { | |
d0d2d26f PE |
816 | set_fontset_name (fontset, Qnil); |
817 | set_fontset_frame (fontset, frame); | |
818 | set_fontset_base (fontset, base); | |
06f76f0d | 819 | } |
0d407d77 | 820 | |
06f76f0d | 821 | ASET (Vfontset_table, id, fontset); |
0d407d77 KH |
822 | next_fontset_id = id + 1; |
823 | return fontset; | |
4ed46869 KH |
824 | } |
825 | ||
0d407d77 | 826 | \f |
1d5d7200 | 827 | /********** INTERFACES TO xfaces.c, xfns.c, and dispextern.h **********/ |
0d407d77 | 828 | |
1d5d7200 | 829 | /* Return the name of the fontset who has ID. */ |
0d407d77 KH |
830 | |
831 | Lisp_Object | |
971de7fb | 832 | fontset_name (int id) |
0d407d77 KH |
833 | { |
834 | Lisp_Object fontset; | |
06f76f0d | 835 | |
0d407d77 KH |
836 | fontset = FONTSET_FROM_ID (id); |
837 | return FONTSET_NAME (fontset); | |
838 | } | |
839 | ||
840 | ||
1d5d7200 | 841 | /* Return the ASCII font name of the fontset who has ID. */ |
0d407d77 KH |
842 | |
843 | Lisp_Object | |
971de7fb | 844 | fontset_ascii (int id) |
0d407d77 KH |
845 | { |
846 | Lisp_Object fontset, elt; | |
06f76f0d | 847 | |
0d407d77 KH |
848 | fontset= FONTSET_FROM_ID (id); |
849 | elt = FONTSET_ASCII (fontset); | |
8aa07a8d KH |
850 | if (CONSP (elt)) |
851 | elt = XCAR (elt); | |
1d5d7200 | 852 | return elt; |
0d407d77 KH |
853 | } |
854 | ||
a5c0af81 | 855 | static void |
a10c8269 | 856 | free_realized_fontset (struct frame *f, Lisp_Object fontset) |
9459b1e9 | 857 | { |
239f9db9 | 858 | #if 0 |
9459b1e9 KH |
859 | Lisp_Object tail; |
860 | ||
97be3ce3 PE |
861 | if (0) |
862 | for (tail = FONTSET_OBJLIST (fontset); CONSP (tail); tail = XCDR (tail)) | |
863 | { | |
a54e2c05 | 864 | eassert (FONT_OBJECT_P (XCAR (tail))); |
97be3ce3 PE |
865 | font_close_object (f, XCAR (tail)); |
866 | } | |
239f9db9 | 867 | #endif |
9459b1e9 | 868 | } |
0d407d77 | 869 | |
06f76f0d KH |
870 | /* Free fontset of FACE defined on frame F. Called from |
871 | free_realized_face. */ | |
0d407d77 | 872 | |
4ed46869 | 873 | void |
a10c8269 | 874 | free_face_fontset (struct frame *f, struct face *face) |
4ed46869 | 875 | { |
452a78e0 KH |
876 | Lisp_Object fontset; |
877 | ||
ff7a2223 | 878 | fontset = FONTSET_FROM_ID (face->fontset); |
581f7ac7 KH |
879 | if (NILP (fontset)) |
880 | return; | |
a54e2c05 DA |
881 | eassert (! BASE_FONTSET_P (fontset)); |
882 | eassert (f == XFRAME (FONTSET_FRAME (fontset))); | |
9459b1e9 | 883 | free_realized_fontset (f, fontset); |
1d5d7200 | 884 | ASET (Vfontset_table, face->fontset, Qnil); |
06f76f0d KH |
885 | if (face->fontset < next_fontset_id) |
886 | next_fontset_id = face->fontset; | |
eb36588a | 887 | if (! NILP (FONTSET_DEFAULT (fontset))) |
452a78e0 | 888 | { |
e1a14cdc | 889 | int id = XINT (FONTSET_ID (FONTSET_DEFAULT (fontset))); |
eb152aa9 | 890 | |
452a78e0 | 891 | fontset = AREF (Vfontset_table, id); |
a54e2c05 DA |
892 | eassert (!NILP (fontset) && ! BASE_FONTSET_P (fontset)); |
893 | eassert (f == XFRAME (FONTSET_FRAME (fontset))); | |
9459b1e9 | 894 | free_realized_fontset (f, fontset); |
452a78e0 KH |
895 | ASET (Vfontset_table, id, Qnil); |
896 | if (id < next_fontset_id) | |
897 | next_fontset_id = face->fontset; | |
898 | } | |
581f7ac7 | 899 | face->fontset = -1; |
0d407d77 | 900 | } |
18998710 | 901 | |
0d407d77 | 902 | |
239f9db9 | 903 | #if 0 |
a864ef14 PE |
904 | /* Return true if FACE is suitable for displaying character C. |
905 | Called from the macro FACE_SUITABLE_FOR_CHAR_P | |
06f76f0d | 906 | when C is not an ASCII character. */ |
0d407d77 | 907 | |
a864ef14 | 908 | bool |
971de7fb | 909 | face_suitable_for_char_p (struct face *face, int c) |
0d407d77 | 910 | { |
7e1a1cd9 | 911 | Lisp_Object fontset, rfont_def; |
0d407d77 | 912 | |
0d407d77 | 913 | fontset = FONTSET_FROM_ID (face->fontset); |
7e1a1cd9 KH |
914 | rfont_def = fontset_font (fontset, c, NULL, -1); |
915 | return (VECTORP (rfont_def) | |
581f7ac7 KH |
916 | && INTEGERP (RFONT_DEF_FACE (rfont_def)) |
917 | && face->id == XINT (RFONT_DEF_FACE (rfont_def))); | |
0d407d77 | 918 | } |
239f9db9 | 919 | #endif |
0d407d77 KH |
920 | |
921 | ||
922 | /* Return ID of face suitable for displaying character C on frame F. | |
40ba43b4 | 923 | FACE must be realized for ASCII characters in advance. Called from |
1d5d7200 | 924 | the macro FACE_FOR_CHAR. */ |
0d407d77 KH |
925 | |
926 | int | |
a10c8269 | 927 | face_for_char (struct frame *f, struct face *face, int c, int pos, Lisp_Object object) |
0d407d77 | 928 | { |
303d5190 | 929 | Lisp_Object fontset, rfont_def, charset; |
7e1a1cd9 | 930 | int face_id; |
6bad8007 | 931 | int id; |
1d5d7200 | 932 | |
ea217c11 KH |
933 | /* If face->fontset is negative (that happens when no font is found |
934 | for face), just return face->ascii_face because we can't do | |
935 | anything. Perhaps, we should fix the callers to assure | |
936 | that face->fontset is always valid. */ | |
937 | if (ASCII_CHAR_P (c) || face->fontset < 0) | |
1d5d7200 | 938 | return face->ascii_face->id; |
0d407d77 | 939 | |
5b0891df JD |
940 | #ifdef HAVE_NS |
941 | if (face->font) | |
942 | { | |
943 | /* Fonts often have characters in other scripts, like symbol, even if they | |
944 | don't match script: symbol. So check if the character is present | |
945 | in the current face first. Only enable for NS for now, but should | |
946 | perhaps be general? */ | |
947 | Lisp_Object font_object; | |
948 | XSETFONT (font_object, face->font); | |
949 | if (font_has_char (f, font_object, c)) return face->id; | |
950 | } | |
951 | #endif | |
952 | ||
a54e2c05 | 953 | eassert (fontset_id_valid_p (face->fontset)); |
0d407d77 | 954 | fontset = FONTSET_FROM_ID (face->fontset); |
a54e2c05 | 955 | eassert (!BASE_FONTSET_P (fontset)); |
41ad6003 | 956 | |
6bad8007 | 957 | if (pos < 0) |
303d5190 KH |
958 | { |
959 | id = -1; | |
960 | charset = Qnil; | |
961 | } | |
6bad8007 KH |
962 | else |
963 | { | |
964 | charset = Fget_char_property (make_number (pos), Qcharset, object); | |
b1bde622 | 965 | if (CHARSETP (charset)) |
28e2436a KH |
966 | { |
967 | Lisp_Object val; | |
968 | ||
a124bbb6 | 969 | val = assq_no_quit (charset, Vfont_encoding_charset_alist); |
28e2436a KH |
970 | if (CONSP (val) && CHARSETP (XCDR (val))) |
971 | charset = XCDR (val); | |
972 | id = XINT (CHARSET_SYMBOL_ID (charset)); | |
973 | } | |
b1bde622 KH |
974 | else |
975 | id = -1; | |
6bad8007 | 976 | } |
b59e66b3 | 977 | |
7e1a1cd9 KH |
978 | rfont_def = fontset_font (fontset, c, face, id); |
979 | if (VECTORP (rfont_def)) | |
980 | { | |
581f7ac7 KH |
981 | if (INTEGERP (RFONT_DEF_FACE (rfont_def))) |
982 | face_id = XINT (RFONT_DEF_FACE (rfont_def)); | |
8aa07a8d | 983 | else |
7e1a1cd9 | 984 | { |
581f7ac7 | 985 | Lisp_Object font_object; |
7e1a1cd9 | 986 | |
581f7ac7 KH |
987 | font_object = RFONT_DEF_OBJECT (rfont_def); |
988 | face_id = face_for_font (f, font_object, face); | |
989 | RFONT_DEF_SET_FACE (rfont_def, face_id); | |
7e1a1cd9 | 990 | } |
7e1a1cd9 | 991 | } |
581f7ac7 | 992 | else |
7e1a1cd9 | 993 | { |
581f7ac7 KH |
994 | if (INTEGERP (FONTSET_NOFONT_FACE (fontset))) |
995 | face_id = XINT (FONTSET_NOFONT_FACE (fontset)); | |
996 | else | |
997 | { | |
998 | face_id = face_for_font (f, Qnil, face); | |
d0d2d26f | 999 | set_fontset_nofont_face (fontset, make_number (face_id)); |
581f7ac7 | 1000 | } |
7e1a1cd9 | 1001 | } |
a54e2c05 | 1002 | eassert (face_id >= 0); |
581f7ac7 | 1003 | return face_id; |
0d407d77 KH |
1004 | } |
1005 | ||
1006 | ||
514cf218 | 1007 | Lisp_Object |
971de7fb | 1008 | font_for_char (struct face *face, int c, int pos, Lisp_Object object) |
514cf218 KH |
1009 | { |
1010 | Lisp_Object fontset, rfont_def, charset; | |
514cf218 KH |
1011 | int id; |
1012 | ||
1013 | if (ASCII_CHAR_P (c)) | |
1014 | { | |
1015 | Lisp_Object font_object; | |
1016 | ||
1017 | XSETFONT (font_object, face->ascii_face->font); | |
1018 | return font_object; | |
1019 | } | |
1020 | ||
a54e2c05 | 1021 | eassert (fontset_id_valid_p (face->fontset)); |
514cf218 | 1022 | fontset = FONTSET_FROM_ID (face->fontset); |
a54e2c05 | 1023 | eassert (!BASE_FONTSET_P (fontset)); |
514cf218 KH |
1024 | if (pos < 0) |
1025 | { | |
1026 | id = -1; | |
1027 | charset = Qnil; | |
1028 | } | |
1029 | else | |
1030 | { | |
1031 | charset = Fget_char_property (make_number (pos), Qcharset, object); | |
b1bde622 | 1032 | if (CHARSETP (charset)) |
514cf218 KH |
1033 | { |
1034 | Lisp_Object val; | |
1035 | ||
9fe78804 | 1036 | val = assq_no_quit (charset, Vfont_encoding_charset_alist); |
514cf218 KH |
1037 | if (CONSP (val) && CHARSETP (XCDR (val))) |
1038 | charset = XCDR (val); | |
1039 | id = XINT (CHARSET_SYMBOL_ID (charset)); | |
1040 | } | |
b1bde622 KH |
1041 | else |
1042 | id = -1; | |
514cf218 KH |
1043 | } |
1044 | ||
514cf218 KH |
1045 | rfont_def = fontset_font (fontset, c, face, id); |
1046 | return (VECTORP (rfont_def) | |
1047 | ? RFONT_DEF_OBJECT (rfont_def) | |
1048 | : Qnil); | |
1049 | } | |
1050 | ||
1051 | ||
0d407d77 KH |
1052 | /* Make a realized fontset for ASCII face FACE on frame F from the |
1053 | base fontset BASE_FONTSET_ID. If BASE_FONTSET_ID is -1, use the | |
1054 | default fontset as the base. Value is the id of the new fontset. | |
1055 | Called from realize_x_face. */ | |
1056 | ||
1057 | int | |
a10c8269 | 1058 | make_fontset_for_ascii_face (struct frame *f, int base_fontset_id, struct face *face) |
0d407d77 | 1059 | { |
1337ac77 | 1060 | Lisp_Object base_fontset, fontset, frame; |
0d407d77 KH |
1061 | |
1062 | XSETFRAME (frame, f); | |
1063 | if (base_fontset_id >= 0) | |
1064 | { | |
1065 | base_fontset = FONTSET_FROM_ID (base_fontset_id); | |
1066 | if (!BASE_FONTSET_P (base_fontset)) | |
1067 | base_fontset = FONTSET_BASE (base_fontset); | |
4e6a86c6 | 1068 | eassert (BASE_FONTSET_P (base_fontset)); |
4ed46869 | 1069 | } |
0d407d77 KH |
1070 | else |
1071 | base_fontset = Vdefault_fontset; | |
1072 | ||
1073 | fontset = make_fontset (frame, Qnil, base_fontset); | |
f3231837 | 1074 | return XINT (FONTSET_ID (fontset)); |
0d407d77 KH |
1075 | } |
1076 | ||
0d407d77 | 1077 | \f |
1d5d7200 | 1078 | |
4ed46869 KH |
1079 | /* Cache data used by fontset_pattern_regexp. The car part is a |
1080 | pattern string containing at least one wild card, the cdr part is | |
1081 | the corresponding regular expression. */ | |
1082 | static Lisp_Object Vcached_fontset_data; | |
1083 | ||
51b59d79 | 1084 | #define CACHED_FONTSET_NAME SSDATA (XCAR (Vcached_fontset_data)) |
7539e11f | 1085 | #define CACHED_FONTSET_REGEX (XCDR (Vcached_fontset_data)) |
4ed46869 KH |
1086 | |
1087 | /* If fontset name PATTERN contains any wild card, return regular | |
1088 | expression corresponding to PATTERN. */ | |
1089 | ||
0d407d77 | 1090 | static Lisp_Object |
971de7fb | 1091 | fontset_pattern_regexp (Lisp_Object pattern) |
4ed46869 | 1092 | { |
51b59d79 PE |
1093 | if (!strchr (SSDATA (pattern), '*') |
1094 | && !strchr (SSDATA (pattern), '?')) | |
4ed46869 | 1095 | /* PATTERN does not contain any wild cards. */ |
1c283e35 | 1096 | return Qnil; |
4ed46869 KH |
1097 | |
1098 | if (!CONSP (Vcached_fontset_data) | |
51b59d79 | 1099 | || strcmp (SSDATA (pattern), CACHED_FONTSET_NAME)) |
4ed46869 KH |
1100 | { |
1101 | /* We must at first update the cached data. */ | |
6cc06608 | 1102 | unsigned char *regex, *p0, *p1; |
821bc4db | 1103 | int ndashes = 0, nstars = 0, nescs = 0; |
6cc06608 | 1104 | |
fc1062f5 KH |
1105 | for (p0 = SDATA (pattern); *p0; p0++) |
1106 | { | |
1107 | if (*p0 == '-') | |
1108 | ndashes++; | |
a653f812 | 1109 | else if (*p0 == '*') |
fc1062f5 | 1110 | nstars++; |
821bc4db KH |
1111 | else if (*p0 == '[' |
1112 | || *p0 == '.' || *p0 == '\\' | |
8510724d | 1113 | || *p0 == '+' || *p0 == '^' |
821bc4db KH |
1114 | || *p0 == '$') |
1115 | nescs++; | |
fc1062f5 KH |
1116 | } |
1117 | ||
da6062e6 | 1118 | /* If PATTERN is not full XLFD we convert "*" to ".*". Otherwise |
fc1062f5 KH |
1119 | we convert "*" to "[^-]*" which is much faster in regular |
1120 | expression matching. */ | |
1121 | if (ndashes < 14) | |
38182d90 | 1122 | p1 = regex = alloca (SBYTES (pattern) + 2 * nstars + 2 * nescs + 1); |
fc1062f5 | 1123 | else |
38182d90 | 1124 | p1 = regex = alloca (SBYTES (pattern) + 5 * nstars + 2 * nescs + 1); |
4ed46869 | 1125 | |
1c283e35 | 1126 | *p1++ = '^'; |
6cc06608 | 1127 | for (p0 = SDATA (pattern); *p0; p0++) |
4ed46869 | 1128 | { |
a653f812 | 1129 | if (*p0 == '*') |
4ed46869 | 1130 | { |
fc1062f5 KH |
1131 | if (ndashes < 14) |
1132 | *p1++ = '.'; | |
1133 | else | |
1134 | *p1++ = '[', *p1++ = '^', *p1++ = '-', *p1++ = ']'; | |
1c283e35 | 1135 | *p1++ = '*'; |
4ed46869 | 1136 | } |
1c283e35 | 1137 | else if (*p0 == '?') |
d96d677d | 1138 | *p1++ = '.'; |
821bc4db KH |
1139 | else if (*p0 == '[' |
1140 | || *p0 == '.' || *p0 == '\\' | |
8510724d | 1141 | || *p0 == '+' || *p0 == '^' |
821bc4db KH |
1142 | || *p0 == '$') |
1143 | *p1++ = '\\', *p1++ = *p0; | |
1c283e35 KH |
1144 | else |
1145 | *p1++ = *p0; | |
4ed46869 KH |
1146 | } |
1147 | *p1++ = '$'; | |
1148 | *p1++ = 0; | |
1149 | ||
51b59d79 | 1150 | Vcached_fontset_data = Fcons (build_string (SSDATA (pattern)), |
dbf46ba6 | 1151 | build_string ((char *) regex)); |
4ed46869 KH |
1152 | } |
1153 | ||
1154 | return CACHED_FONTSET_REGEX; | |
1155 | } | |
1156 | ||
0d407d77 | 1157 | /* Return ID of the base fontset named NAME. If there's no such |
a653f812 KH |
1158 | fontset, return -1. NAME_PATTERN specifies how to treat NAME as this: |
1159 | 0: pattern containing '*' and '?' as wildcards | |
1160 | 1: regular expression | |
1161 | 2: literal fontset name | |
1162 | */ | |
0d407d77 KH |
1163 | |
1164 | int | |
971de7fb | 1165 | fs_query_fontset (Lisp_Object name, int name_pattern) |
0d407d77 | 1166 | { |
1337ac77 | 1167 | Lisp_Object tem; |
0d407d77 KH |
1168 | int i; |
1169 | ||
1170 | name = Fdowncase (name); | |
a653f812 | 1171 | if (name_pattern != 1) |
0d407d77 KH |
1172 | { |
1173 | tem = Frassoc (name, Vfontset_alias_alist); | |
6bad8007 KH |
1174 | if (NILP (tem)) |
1175 | tem = Fassoc (name, Vfontset_alias_alist); | |
0d407d77 KH |
1176 | if (CONSP (tem) && STRINGP (XCAR (tem))) |
1177 | name = XCAR (tem); | |
a653f812 | 1178 | else if (name_pattern == 0) |
0d407d77 KH |
1179 | { |
1180 | tem = fontset_pattern_regexp (name); | |
1181 | if (STRINGP (tem)) | |
1182 | { | |
1183 | name = tem; | |
a653f812 | 1184 | name_pattern = 1; |
0d407d77 KH |
1185 | } |
1186 | } | |
1187 | } | |
1188 | ||
1189 | for (i = 0; i < ASIZE (Vfontset_table); i++) | |
1190 | { | |
6e1b0d8c | 1191 | Lisp_Object fontset, this_name; |
0d407d77 KH |
1192 | |
1193 | fontset = FONTSET_FROM_ID (i); | |
1194 | if (NILP (fontset) | |
1195 | || !BASE_FONTSET_P (fontset)) | |
1196 | continue; | |
1197 | ||
6e1b0d8c | 1198 | this_name = FONTSET_NAME (fontset); |
a653f812 | 1199 | if (name_pattern == 1 |
581f7ac7 | 1200 | ? fast_string_match_ignore_case (name, this_name) >= 0 |
25a48bd0 | 1201 | : !xstrcasecmp (SSDATA (name), SSDATA (this_name))) |
0d407d77 KH |
1202 | return i; |
1203 | } | |
1204 | return -1; | |
1205 | } | |
1206 | ||
1207 | ||
a7ca3326 | 1208 | DEFUN ("query-fontset", Fquery_fontset, Squery_fontset, 1, 2, 0, |
335c5470 PJ |
1209 | doc: /* Return the name of a fontset that matches PATTERN. |
1210 | The value is nil if there is no matching fontset. | |
1211 | PATTERN can contain `*' or `?' as a wildcard | |
1212 | just as X font name matching algorithm allows. | |
1213 | If REGEXPP is non-nil, PATTERN is a regular expression. */) | |
5842a27b | 1214 | (Lisp_Object pattern, Lisp_Object regexpp) |
4ed46869 | 1215 | { |
0d407d77 KH |
1216 | Lisp_Object fontset; |
1217 | int id; | |
4ed46869 | 1218 | |
7452b7bd | 1219 | check_window_system (NULL); |
4ed46869 | 1220 | |
b7826503 | 1221 | CHECK_STRING (pattern); |
4ed46869 | 1222 | |
d5db4077 | 1223 | if (SCHARS (pattern) == 0) |
4ed46869 KH |
1224 | return Qnil; |
1225 | ||
0d407d77 KH |
1226 | id = fs_query_fontset (pattern, !NILP (regexpp)); |
1227 | if (id < 0) | |
1228 | return Qnil; | |
4ed46869 | 1229 | |
0d407d77 KH |
1230 | fontset = FONTSET_FROM_ID (id); |
1231 | return FONTSET_NAME (fontset); | |
4ed46869 KH |
1232 | } |
1233 | ||
06f76f0d | 1234 | /* Return a list of base fontset names matching PATTERN on frame F. */ |
4ed46869 KH |
1235 | |
1236 | Lisp_Object | |
a10c8269 | 1237 | list_fontsets (struct frame *f, Lisp_Object pattern, int size) |
4ed46869 | 1238 | { |
1337ac77 | 1239 | Lisp_Object frame, regexp, val; |
0d407d77 | 1240 | int id; |
4ed46869 | 1241 | |
0d407d77 | 1242 | XSETFRAME (frame, f); |
4ed46869 | 1243 | |
0d407d77 | 1244 | regexp = fontset_pattern_regexp (pattern); |
4ed46869 | 1245 | val = Qnil; |
4ed46869 | 1246 | |
0d407d77 KH |
1247 | for (id = 0; id < ASIZE (Vfontset_table); id++) |
1248 | { | |
6e1b0d8c | 1249 | Lisp_Object fontset, name; |
0d407d77 KH |
1250 | |
1251 | fontset = FONTSET_FROM_ID (id); | |
1252 | if (NILP (fontset) | |
1253 | || !BASE_FONTSET_P (fontset) | |
1254 | || !EQ (frame, FONTSET_FRAME (fontset))) | |
1255 | continue; | |
6e1b0d8c | 1256 | name = FONTSET_NAME (fontset); |
0d407d77 | 1257 | |
1d5d7200 | 1258 | if (STRINGP (regexp) |
6e1b0d8c | 1259 | ? (fast_string_match (regexp, name) < 0) |
51b59d79 | 1260 | : strcmp (SSDATA (pattern), SSDATA (name))) |
0d407d77 KH |
1261 | continue; |
1262 | ||
0d407d77 | 1263 | val = Fcons (Fcopy_sequence (FONTSET_NAME (fontset)), val); |
4ed46869 KH |
1264 | } |
1265 | ||
1266 | return val; | |
1267 | } | |
1268 | ||
4ed46869 | 1269 | |
8f924df7 | 1270 | /* Free all realized fontsets whose base fontset is BASE. */ |
4ed46869 | 1271 | |
06f76f0d | 1272 | static void |
971de7fb | 1273 | free_realized_fontsets (Lisp_Object base) |
06f76f0d KH |
1274 | { |
1275 | int id; | |
4ed46869 | 1276 | |
2f034212 | 1277 | #if 0 |
27e20b2f KH |
1278 | /* For the moment, this doesn't work because free_realized_face |
1279 | doesn't remove FACE from a cache. Until we find a solution, we | |
1280 | suppress this code, and simply use Fclear_face_cache even though | |
1281 | that is not efficient. */ | |
4d7e6e51 | 1282 | block_input (); |
06f76f0d | 1283 | for (id = 0; id < ASIZE (Vfontset_table); id++) |
4ed46869 | 1284 | { |
06f76f0d | 1285 | Lisp_Object this = AREF (Vfontset_table, id); |
0d407d77 | 1286 | |
06f76f0d | 1287 | if (EQ (FONTSET_BASE (this), base)) |
0d407d77 | 1288 | { |
06f76f0d | 1289 | Lisp_Object tail; |
4ed46869 | 1290 | |
06f76f0d KH |
1291 | for (tail = FONTSET_FACE_ALIST (this); CONSP (tail); |
1292 | tail = XCDR (tail)) | |
1293 | { | |
a10c8269 | 1294 | struct frame *f = XFRAME (FONTSET_FRAME (this)); |
06f76f0d KH |
1295 | int face_id = XINT (XCDR (XCAR (tail))); |
1296 | struct face *face = FACE_FROM_ID (f, face_id); | |
4ed46869 | 1297 | |
06f76f0d KH |
1298 | /* Face THIS itself is also freed by the following call. */ |
1299 | free_realized_face (f, face); | |
1300 | } | |
1301 | } | |
0d407d77 | 1302 | } |
4d7e6e51 | 1303 | unblock_input (); |
27e20b2f | 1304 | #else /* not 0 */ |
2f034212 KH |
1305 | /* But, we don't have to call Fclear_face_cache if no fontset has |
1306 | been realized from BASE. */ | |
1307 | for (id = 0; id < ASIZE (Vfontset_table); id++) | |
1308 | { | |
1309 | Lisp_Object this = AREF (Vfontset_table, id); | |
1310 | ||
985773c9 | 1311 | if (CHAR_TABLE_P (this) && EQ (FONTSET_BASE (this), base)) |
2f034212 KH |
1312 | { |
1313 | Fclear_face_cache (Qt); | |
1314 | break; | |
1315 | } | |
1316 | } | |
27e20b2f | 1317 | #endif /* not 0 */ |
0d407d77 | 1318 | } |
4ed46869 | 1319 | |
4ed46869 | 1320 | |
0d407d77 KH |
1321 | /* Check validity of NAME as a fontset name and return the |
1322 | corresponding fontset. If not valid, signal an error. | |
a3d16f39 KH |
1323 | |
1324 | If NAME is t, return Vdefault_fontset. If NAME is nil, return the | |
1325 | fontset of *FRAME. | |
1326 | ||
1327 | Set *FRAME to the actual frame. */ | |
0d407d77 KH |
1328 | |
1329 | static Lisp_Object | |
971de7fb | 1330 | check_fontset_name (Lisp_Object name, Lisp_Object *frame) |
0d407d77 KH |
1331 | { |
1332 | int id; | |
d9f07150 | 1333 | struct frame *f = decode_live_frame (*frame); |
0d407d77 | 1334 | |
d9f07150 | 1335 | XSETFRAME (*frame, f); |
a3d16f39 | 1336 | |
0d407d77 KH |
1337 | if (EQ (name, Qt)) |
1338 | return Vdefault_fontset; | |
a3d16f39 | 1339 | if (NILP (name)) |
d9f07150 | 1340 | id = FRAME_FONTSET (f); |
a3d16f39 KH |
1341 | else |
1342 | { | |
1343 | CHECK_STRING (name); | |
1344 | /* First try NAME as literal. */ | |
1345 | id = fs_query_fontset (name, 2); | |
1346 | if (id < 0) | |
1347 | /* For backward compatibility, try again NAME as pattern. */ | |
1348 | id = fs_query_fontset (name, 0); | |
1349 | if (id < 0) | |
1350 | error ("Fontset `%s' does not exist", SDATA (name)); | |
1351 | } | |
0d407d77 KH |
1352 | return FONTSET_FROM_ID (id); |
1353 | } | |
4ed46869 | 1354 | |
1d5d7200 | 1355 | static void |
971de7fb | 1356 | accumulate_script_ranges (Lisp_Object arg, Lisp_Object range, Lisp_Object val) |
1d5d7200 KH |
1357 | { |
1358 | if (EQ (XCAR (arg), val)) | |
1359 | { | |
1360 | if (CONSP (range)) | |
1361 | XSETCDR (arg, Fcons (Fcons (XCAR (range), XCDR (range)), XCDR (arg))); | |
1362 | else | |
1363 | XSETCDR (arg, Fcons (Fcons (range, range), XCDR (arg))); | |
1364 | } | |
1365 | } | |
1366 | ||
1367 | ||
a3d16f39 KH |
1368 | /* Callback function for map_charset_chars in Fset_fontset_font. |
1369 | ARG is a vector [ FONTSET FONT_DEF ADD ASCII SCRIPT_RANGE_LIST ]. | |
fb78e2ed | 1370 | |
a3d16f39 KH |
1371 | In FONTSET, set FONT_DEF in a fashion specified by ADD for |
1372 | characters in RANGE and ranges in SCRIPT_RANGE_LIST before RANGE. | |
e1dbe924 | 1373 | The consumed ranges are popped up from SCRIPT_RANGE_LIST, and the |
a3d16f39 KH |
1374 | new SCRIPT_RANGE_LIST is stored in ARG. |
1375 | ||
1376 | If ASCII is nil, don't set FONT_DEF for ASCII characters. It is | |
1377 | assured that SCRIPT_RANGE_LIST doesn't contain ASCII in that | |
1378 | case. */ | |
fb78e2ed | 1379 | |
2449d4d0 | 1380 | static void |
971de7fb | 1381 | set_fontset_font (Lisp_Object arg, Lisp_Object range) |
2449d4d0 | 1382 | { |
a3d16f39 KH |
1383 | Lisp_Object fontset, font_def, add, ascii, script_range_list; |
1384 | int from = XINT (XCAR (range)), to = XINT (XCDR (range)); | |
2449d4d0 | 1385 | |
a3d16f39 KH |
1386 | fontset = AREF (arg, 0); |
1387 | font_def = AREF (arg, 1); | |
1388 | add = AREF (arg, 2); | |
1389 | ascii = AREF (arg, 3); | |
1390 | script_range_list = AREF (arg, 4); | |
fb78e2ed | 1391 | |
a3d16f39 KH |
1392 | if (NILP (ascii) && from < 0x80) |
1393 | { | |
1394 | if (to < 0x80) | |
fb78e2ed | 1395 | return; |
a3d16f39 KH |
1396 | from = 0x80; |
1397 | range = Fcons (make_number (0x80), XCDR (range)); | |
1398 | } | |
1399 | ||
1400 | #define SCRIPT_FROM XINT (XCAR (XCAR (script_range_list))) | |
1401 | #define SCRIPT_TO XINT (XCDR (XCAR (script_range_list))) | |
1402 | #define POP_SCRIPT_RANGE() script_range_list = XCDR (script_range_list) | |
1403 | ||
1404 | for (; CONSP (script_range_list) && SCRIPT_TO < from; POP_SCRIPT_RANGE ()) | |
1405 | FONTSET_ADD (fontset, XCAR (script_range_list), font_def, add); | |
1406 | if (CONSP (script_range_list)) | |
1407 | { | |
1408 | if (SCRIPT_FROM < from) | |
1409 | range = Fcons (make_number (SCRIPT_FROM), XCDR (range)); | |
1410 | while (CONSP (script_range_list) && SCRIPT_TO <= to) | |
1411 | POP_SCRIPT_RANGE (); | |
1412 | if (CONSP (script_range_list) && SCRIPT_FROM <= to) | |
1413 | XSETCAR (XCAR (script_range_list), make_number (to + 1)); | |
fb78e2ed | 1414 | } |
a3d16f39 KH |
1415 | |
1416 | FONTSET_ADD (fontset, range, font_def, add); | |
1417 | ASET (arg, 4, script_range_list); | |
2449d4d0 KH |
1418 | } |
1419 | ||
f57e2426 | 1420 | static void update_auto_fontset_alist (Lisp_Object, Lisp_Object); |
d6490542 | 1421 | |
d6aaac9e | 1422 | |
1d5d7200 | 1423 | DEFUN ("set-fontset-font", Fset_fontset_font, Sset_fontset_font, 3, 5, 0, |
8f924df7 | 1424 | doc: /* |
eb36588a | 1425 | Modify fontset NAME to use FONT-SPEC for TARGET characters. |
335c5470 | 1426 | |
a3d16f39 KH |
1427 | NAME is a fontset name string, nil for the fontset of FRAME, or t for |
1428 | the default fontset. | |
1429 | ||
eb36588a KH |
1430 | TARGET may be a cons; (FROM . TO), where FROM and TO are characters. |
1431 | In that case, use FONT-SPEC for all characters in the range FROM and | |
1432 | TO (inclusive). | |
06f76f0d | 1433 | |
eb36588a KH |
1434 | TARGET may be a script name symbol. In that case, use FONT-SPEC for |
1435 | all characters that belong to the script. | |
06f76f0d | 1436 | |
eb36588a | 1437 | TARGET may be a charset. In that case, use FONT-SPEC for all |
95318a38 | 1438 | characters in the charset. |
1d5d7200 | 1439 | |
eb36588a KH |
1440 | TARGET may be nil. In that case, use FONT-SPEC for any characters for |
1441 | that no FONT-SPEC is specified. | |
1442 | ||
0fdf26e6 | 1443 | FONT-SPEC may one of these: |
581f7ac7 | 1444 | * A font-spec object made by the function `font-spec' (which see). |
3dcd48dd | 1445 | * A cons (FAMILY . REGISTRY), where FAMILY is a font family name and |
581f7ac7 KH |
1446 | REGISTRY is a font registry name. FAMILY may contain foundry |
1447 | name, and REGISTRY may contain encoding name. | |
00c4da0f | 1448 | * A font name string. |
eaa0402c | 1449 | * nil, which explicitly specifies that there's no font for TARGET. |
1d5d7200 | 1450 | |
a3d16f39 KH |
1451 | Optional 4th argument FRAME is a frame or nil for the selected frame |
1452 | that is concerned in the case that NAME is nil. | |
1d5d7200 KH |
1453 | |
1454 | Optional 5th argument ADD, if non-nil, specifies how to add FONT-SPEC | |
eb36588a | 1455 | to the font specifications for TARGET previously set. If it is |
1d5d7200 KH |
1456 | `prepend', FONT-SPEC is prepended. If it is `append', FONT-SPEC is |
1457 | appended. By default, FONT-SPEC overrides the previous settings. */) | |
5842a27b | 1458 | (Lisp_Object name, Lisp_Object target, Lisp_Object font_spec, Lisp_Object frame, Lisp_Object add) |
0d407d77 | 1459 | { |
06f76f0d | 1460 | Lisp_Object fontset; |
9683749a | 1461 | Lisp_Object font_def, registry, family; |
1d5d7200 | 1462 | Lisp_Object range_list; |
fb78e2ed | 1463 | struct charset *charset = NULL; |
d6490542 | 1464 | Lisp_Object fontname; |
a864ef14 | 1465 | bool ascii_changed = 0; |
0d407d77 | 1466 | |
a3d16f39 | 1467 | fontset = check_fontset_name (name, &frame); |
1d5d7200 | 1468 | |
d6490542 | 1469 | fontname = Qnil; |
581f7ac7 | 1470 | if (CONSP (font_spec)) |
0d407d77 | 1471 | { |
581f7ac7 | 1472 | Lisp_Object spec = Ffont_spec (0, NULL); |
1d5d7200 | 1473 | |
581f7ac7 KH |
1474 | font_parse_family_registry (XCAR (font_spec), XCDR (font_spec), spec); |
1475 | font_spec = spec; | |
d6490542 | 1476 | fontname = Ffont_xlfd_name (font_spec, Qnil); |
0890801b | 1477 | } |
d67f7f1a | 1478 | else if (STRINGP (font_spec)) |
4ed46869 | 1479 | { |
ea0162a6 KH |
1480 | Lisp_Object args[2]; |
1481 | ||
d6490542 | 1482 | fontname = font_spec; |
ea0162a6 KH |
1483 | args[0] = QCname; |
1484 | args[1] = font_spec; | |
1485 | font_spec = Ffont_spec (2, args); | |
0d407d77 | 1486 | } |
d6490542 KH |
1487 | else if (FONT_SPEC_P (font_spec)) |
1488 | fontname = Ffont_xlfd_name (font_spec, Qnil); | |
1489 | else if (! NILP (font_spec)) | |
581f7ac7 | 1490 | Fsignal (Qfont, list2 (build_string ("Invalid font-spec"), font_spec)); |
1d5d7200 | 1491 | |
d67f7f1a | 1492 | if (! NILP (font_spec)) |
57e13af9 | 1493 | { |
581f7ac7 KH |
1494 | Lisp_Object encoding, repertory; |
1495 | ||
d67f7f1a | 1496 | family = AREF (font_spec, FONT_FAMILY_INDEX); |
581f7ac7 | 1497 | if (! NILP (family) ) |
d67f7f1a KH |
1498 | family = SYMBOL_NAME (family); |
1499 | registry = AREF (font_spec, FONT_REGISTRY_INDEX); | |
581f7ac7 KH |
1500 | if (! NILP (registry)) |
1501 | registry = Fdowncase (SYMBOL_NAME (registry)); | |
1502 | encoding = find_font_encoding (concat3 (family, build_string ("-"), | |
1503 | registry)); | |
d67f7f1a KH |
1504 | if (NILP (encoding)) |
1505 | encoding = Qascii; | |
1506 | ||
1507 | if (SYMBOLP (encoding)) | |
1508 | { | |
1509 | CHECK_CHARSET (encoding); | |
1510 | encoding = repertory = CHARSET_SYMBOL_ID (encoding); | |
1511 | } | |
1512 | else | |
57e13af9 | 1513 | { |
d67f7f1a KH |
1514 | repertory = XCDR (encoding); |
1515 | encoding = XCAR (encoding); | |
1516 | CHECK_CHARSET (encoding); | |
1517 | encoding = CHARSET_SYMBOL_ID (encoding); | |
1518 | if (! NILP (repertory) && SYMBOLP (repertory)) | |
1519 | { | |
1520 | CHECK_CHARSET (repertory); | |
1521 | repertory = CHARSET_SYMBOL_ID (repertory); | |
1522 | } | |
57e13af9 | 1523 | } |
581f7ac7 | 1524 | FONT_DEF_NEW (font_def, font_spec, encoding, repertory); |
0d407d77 | 1525 | } |
d67f7f1a KH |
1526 | else |
1527 | font_def = Qnil; | |
4ed46869 | 1528 | |
eb36588a | 1529 | if (CHARACTERP (target)) |
d6490542 KH |
1530 | { |
1531 | if (XFASTINT (target) < 0x80) | |
d7a39b51 | 1532 | error ("Can't set a font for partial ASCII range"); |
6c6f1994 | 1533 | range_list = list1 (Fcons (target, target)); |
d6490542 | 1534 | } |
eb36588a | 1535 | else if (CONSP (target)) |
0d407d77 | 1536 | { |
06f76f0d KH |
1537 | Lisp_Object from, to; |
1538 | ||
eb36588a KH |
1539 | from = Fcar (target); |
1540 | to = Fcdr (target); | |
06f76f0d KH |
1541 | CHECK_CHARACTER (from); |
1542 | CHECK_CHARACTER (to); | |
d6490542 KH |
1543 | if (XFASTINT (from) < 0x80) |
1544 | { | |
1545 | if (XFASTINT (from) != 0 || XFASTINT (to) < 0x7F) | |
d7a39b51 | 1546 | error ("Can't set a font for partial ASCII range"); |
d6490542 KH |
1547 | ascii_changed = 1; |
1548 | } | |
6c6f1994 | 1549 | range_list = list1 (target); |
4ed46869 | 1550 | } |
eb36588a | 1551 | else if (SYMBOLP (target) && !NILP (target)) |
8a9be3ac | 1552 | { |
1d5d7200 KH |
1553 | Lisp_Object script_list; |
1554 | Lisp_Object val; | |
0d407d77 | 1555 | |
1d5d7200 KH |
1556 | range_list = Qnil; |
1557 | script_list = XCHAR_TABLE (Vchar_script_table)->extras[0]; | |
eb36588a | 1558 | if (! NILP (Fmemq (target, script_list))) |
afe93d01 | 1559 | { |
d6490542 KH |
1560 | if (EQ (target, Qlatin)) |
1561 | ascii_changed = 1; | |
6c6f1994 | 1562 | val = list1 (target); |
1d5d7200 | 1563 | map_char_table (accumulate_script_ranges, Qnil, Vchar_script_table, |
8f924df7 | 1564 | val); |
a3d16f39 | 1565 | range_list = Fnreverse (XCDR (val)); |
afe93d01 | 1566 | } |
fb78e2ed | 1567 | if (CHARSETP (target)) |
afe93d01 | 1568 | { |
d6490542 KH |
1569 | CHECK_CHARSET_GET_CHARSET (target, charset); |
1570 | if (charset->ascii_compatible_p) | |
1571 | ascii_changed = 1; | |
afe93d01 | 1572 | } |
fb78e2ed | 1573 | else if (NILP (range_list)) |
1d5d7200 | 1574 | error ("Invalid script or charset name: %s", |
eb36588a | 1575 | SDATA (SYMBOL_NAME (target))); |
8a9be3ac | 1576 | } |
eb36588a | 1577 | else if (NILP (target)) |
6c6f1994 | 1578 | range_list = list1 (Qnil); |
eb36588a KH |
1579 | else |
1580 | error ("Invalid target for setting a font"); | |
0d407d77 | 1581 | |
a3d16f39 KH |
1582 | if (ascii_changed) |
1583 | { | |
1584 | Lisp_Object val; | |
1585 | ||
1586 | if (NILP (font_spec)) | |
1587 | error ("Can't set ASCII font to nil"); | |
1588 | val = CHAR_TABLE_REF (fontset, 0); | |
1589 | if (! NILP (val) && EQ (add, Qappend)) | |
1590 | /* We are going to change just an additional font for ASCII. */ | |
1591 | ascii_changed = 0; | |
1592 | } | |
fb78e2ed KH |
1593 | |
1594 | if (charset) | |
1595 | { | |
a3d16f39 KH |
1596 | Lisp_Object arg; |
1597 | ||
25721f5b | 1598 | arg = make_uninit_vector (5); |
a3d16f39 KH |
1599 | ASET (arg, 0, fontset); |
1600 | ASET (arg, 1, font_def); | |
1601 | ASET (arg, 2, add); | |
1602 | ASET (arg, 3, ascii_changed ? Qt : Qnil); | |
1603 | ASET (arg, 4, range_list); | |
fb78e2ed | 1604 | |
a3d16f39 | 1605 | map_charset_chars (set_fontset_font, Qnil, arg, charset, |
fb78e2ed KH |
1606 | CHARSET_MIN_CODE (charset), |
1607 | CHARSET_MAX_CODE (charset)); | |
a3d16f39 | 1608 | range_list = AREF (arg, 4); |
fb78e2ed | 1609 | } |
1d5d7200 KH |
1610 | for (; CONSP (range_list); range_list = XCDR (range_list)) |
1611 | FONTSET_ADD (fontset, XCAR (range_list), font_def, add); | |
4ed46869 | 1612 | |
d6490542 KH |
1613 | if (ascii_changed) |
1614 | { | |
7519b8cd | 1615 | Lisp_Object tail, fr, alist; |
d6490542 KH |
1616 | int fontset_id = XINT (FONTSET_ID (fontset)); |
1617 | ||
d0d2d26f | 1618 | set_fontset_ascii (fontset, fontname); |
d6490542 | 1619 | name = FONTSET_NAME (fontset); |
7519b8cd | 1620 | FOR_EACH_FRAME (tail, fr) |
d6490542 | 1621 | { |
a10c8269 | 1622 | struct frame *f = XFRAME (fr); |
d6490542 | 1623 | Lisp_Object font_object; |
0875632e | 1624 | struct face *face; |
d6490542 | 1625 | |
0875632e | 1626 | if (FRAME_INITIAL_P (f) || FRAME_TERMCAP_P (f)) |
d6490542 KH |
1627 | continue; |
1628 | if (fontset_id != FRAME_FONTSET (f)) | |
1629 | continue; | |
0875632e KH |
1630 | face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
1631 | if (face) | |
1632 | font_object = font_load_for_lface (f, face->lface, font_spec); | |
1633 | else | |
1634 | font_object = font_open_by_spec (f, font_spec); | |
d6490542 KH |
1635 | if (! NILP (font_object)) |
1636 | { | |
1637 | update_auto_fontset_alist (font_object, fontset); | |
6c6f1994 | 1638 | alist = list1 (Fcons (Qfont, Fcons (name, font_object))); |
7519b8cd | 1639 | Fmodify_frame_parameters (fr, alist); |
d6490542 KH |
1640 | } |
1641 | } | |
1642 | } | |
1643 | ||
0875632e KH |
1644 | /* Free all realized fontsets whose base is FONTSET. This way, the |
1645 | specified character(s) are surely redisplayed by a correct | |
1646 | font. */ | |
1647 | free_realized_fontsets (fontset); | |
1648 | ||
4ed46869 KH |
1649 | return Qnil; |
1650 | } | |
1651 | ||
06f76f0d KH |
1652 | |
1653 | DEFUN ("new-fontset", Fnew_fontset, Snew_fontset, 2, 2, 0, | |
1654 | doc: /* Create a new fontset NAME from font information in FONTLIST. | |
1655 | ||
1d5d7200 | 1656 | FONTLIST is an alist of scripts vs the corresponding font specification list. |
d6aaac9e KH |
1657 | Each element of FONTLIST has the form (SCRIPT FONT-SPEC ...), where a |
1658 | character of SCRIPT is displayed by a font that matches one of | |
1659 | FONT-SPEC. | |
06f76f0d | 1660 | |
d6aaac9e KH |
1661 | SCRIPT is a symbol that appears in the first extra slot of the |
1662 | char-table `char-script-table'. | |
06f76f0d | 1663 | |
1d5d7200 KH |
1664 | FONT-SPEC is a vector, a cons, or a string. See the documentation of |
1665 | `set-fontset-font' for the meaning. */) | |
5842a27b | 1666 | (Lisp_Object name, Lisp_Object fontlist) |
06f76f0d | 1667 | { |
1d5d7200 | 1668 | Lisp_Object fontset; |
1d5d7200 | 1669 | int id; |
06f76f0d KH |
1670 | |
1671 | CHECK_STRING (name); | |
1672 | CHECK_LIST (fontlist); | |
1673 | ||
581f7ac7 | 1674 | name = Fdowncase (name); |
1d5d7200 KH |
1675 | id = fs_query_fontset (name, 0); |
1676 | if (id < 0) | |
0d407d77 | 1677 | { |
581f7ac7 KH |
1678 | Lisp_Object font_spec = Ffont_spec (0, NULL); |
1679 | Lisp_Object short_name; | |
5f2d79e0 | 1680 | char xlfd[256]; |
581f7ac7 KH |
1681 | int len; |
1682 | ||
984e7f30 | 1683 | if (font_parse_xlfd (SSDATA (name), SBYTES (name), font_spec) < 0) |
d6aaac9e | 1684 | error ("Fontset name must be in XLFD format"); |
581f7ac7 | 1685 | short_name = AREF (font_spec, FONT_REGISTRY_INDEX); |
51b59d79 | 1686 | if (strncmp (SSDATA (SYMBOL_NAME (short_name)), "fontset-", 8) |
581f7ac7 KH |
1687 | || SBYTES (SYMBOL_NAME (short_name)) < 9) |
1688 | error ("Registry field of fontset name must be \"fontset-*\""); | |
1689 | Vfontset_alias_alist = Fcons (Fcons (name, SYMBOL_NAME (short_name)), | |
1690 | Vfontset_alias_alist); | |
1691 | ASET (font_spec, FONT_REGISTRY_INDEX, Qiso8859_1); | |
d6aaac9e | 1692 | fontset = make_fontset (Qnil, name, Qnil); |
5f2d79e0 KH |
1693 | len = font_unparse_xlfd (font_spec, 0, xlfd, 256); |
1694 | if (len < 0) | |
1695 | error ("Invalid fontset name (perhaps too long): %s", SDATA (name)); | |
d0d2d26f | 1696 | set_fontset_ascii (fontset, make_unibyte_string (xlfd, len)); |
d6aaac9e | 1697 | } |
1d5d7200 KH |
1698 | else |
1699 | { | |
8510724d | 1700 | fontset = FONTSET_FROM_ID (id); |
1d5d7200 KH |
1701 | free_realized_fontsets (fontset); |
1702 | Fset_char_table_range (fontset, Qt, Qnil); | |
0d407d77 | 1703 | } |
4ed46869 | 1704 | |
7d7bbefd | 1705 | for (; CONSP (fontlist); fontlist = XCDR (fontlist)) |
1d5d7200 KH |
1706 | { |
1707 | Lisp_Object elt, script; | |
1708 | ||
34348bd4 | 1709 | elt = XCAR (fontlist); |
1d5d7200 | 1710 | script = Fcar (elt); |
cc36ddbf KH |
1711 | elt = Fcdr (elt); |
1712 | if (CONSP (elt) && (NILP (XCDR (elt)) || CONSP (XCDR (elt)))) | |
1713 | for (; CONSP (elt); elt = XCDR (elt)) | |
1714 | Fset_fontset_font (name, script, XCAR (elt), Qnil, Qappend); | |
1715 | else | |
1716 | Fset_fontset_font (name, script, elt, Qnil, Qappend); | |
1d5d7200 | 1717 | } |
06f76f0d KH |
1718 | return name; |
1719 | } | |
1720 | ||
1721 | ||
452a78e0 | 1722 | /* Alist of automatically created fontsets. Each element is a cons |
581f7ac7 | 1723 | (FONT-SPEC . FONTSET-ID). */ |
452a78e0 | 1724 | static Lisp_Object auto_fontset_alist; |
d6aaac9e | 1725 | |
d6490542 | 1726 | /* Number of automatically created fontsets. */ |
d311d28c | 1727 | static ptrdiff_t num_auto_fontsets; |
d6490542 | 1728 | |
0b381c7e | 1729 | /* Return a fontset synthesized from FONT-OBJECT. This is called from |
d8d2f142 KH |
1730 | x_new_font when FONT-OBJECT is used for the default ASCII font of a |
1731 | frame, and the returned fontset is used for the default fontset of | |
1732 | that frame. The fontset specifies a font of the same registry as | |
1733 | FONT-OBJECT for all characters in the repertory of the registry | |
1734 | (see Vfont_encoding_alist). If the repertory is not known, the | |
1735 | fontset specifies the font for all Latin characters assuming that a | |
1736 | user intends to use FONT-OBJECT for Latin characters. */ | |
d6490542 | 1737 | |
d6aaac9e | 1738 | int |
971de7fb | 1739 | fontset_from_font (Lisp_Object font_object) |
8aa07a8d | 1740 | { |
03ef560c | 1741 | Lisp_Object font_name = font_get_name (font_object); |
92470028 | 1742 | Lisp_Object font_spec = copy_font_spec (font_object); |
d6490542 | 1743 | Lisp_Object registry = AREF (font_spec, FONT_REGISTRY_INDEX); |
581f7ac7 KH |
1744 | Lisp_Object fontset_spec, alias, name, fontset; |
1745 | Lisp_Object val; | |
8aa07a8d | 1746 | |
581f7ac7 KH |
1747 | val = assoc_no_quit (font_spec, auto_fontset_alist); |
1748 | if (CONSP (val)) | |
1749 | return XINT (FONTSET_ID (XCDR (val))); | |
d6490542 | 1750 | if (num_auto_fontsets++ == 0) |
581f7ac7 | 1751 | alias = intern ("fontset-startup"); |
03ef560c KH |
1752 | else |
1753 | { | |
d311d28c | 1754 | char temp[sizeof "fontset-auto" + INT_STRLEN_BOUND (ptrdiff_t)]; |
8aa07a8d | 1755 | |
d311d28c | 1756 | sprintf (temp, "fontset-auto%"pD"d", num_auto_fontsets - 1); |
581f7ac7 | 1757 | alias = intern (temp); |
03ef560c | 1758 | } |
92470028 | 1759 | fontset_spec = copy_font_spec (font_spec); |
581f7ac7 | 1760 | ASET (fontset_spec, FONT_REGISTRY_INDEX, alias); |
7ae2e7f0 | 1761 | name = Ffont_xlfd_name (fontset_spec, Qnil); |
4e6a86c6 | 1762 | eassert (!NILP (name)); |
03ef560c | 1763 | fontset = make_fontset (Qnil, name, Qnil); |
581f7ac7 KH |
1764 | Vfontset_alias_alist = Fcons (Fcons (name, SYMBOL_NAME (alias)), |
1765 | Vfontset_alias_alist); | |
1766 | alias = Fdowncase (AREF (font_object, FONT_NAME_INDEX)); | |
1767 | Vfontset_alias_alist = Fcons (Fcons (name, alias), Vfontset_alias_alist); | |
1768 | auto_fontset_alist = Fcons (Fcons (font_spec, fontset), auto_fontset_alist); | |
d8d2f142 KH |
1769 | font_spec = Ffont_spec (0, NULL); |
1770 | ASET (font_spec, FONT_REGISTRY_INDEX, registry); | |
1771 | { | |
1772 | Lisp_Object target = find_font_encoding (SYMBOL_NAME (registry)); | |
1773 | ||
1774 | if (CONSP (target)) | |
1775 | target = XCDR (target); | |
1776 | if (! CHARSETP (target)) | |
1777 | target = Qlatin; | |
1778 | Fset_fontset_font (name, target, font_spec, Qnil, Qnil); | |
1779 | Fset_fontset_font (name, Qnil, font_spec, Qnil, Qnil); | |
1780 | } | |
1781 | ||
d0d2d26f | 1782 | set_fontset_ascii (fontset, font_name); |
edfda783 | 1783 | |
03ef560c | 1784 | return XINT (FONTSET_ID (fontset)); |
8aa07a8d KH |
1785 | } |
1786 | ||
d6490542 KH |
1787 | |
1788 | /* Update auto_fontset_alist for FONTSET. When an ASCII font of | |
1789 | FONTSET is changed, we delete an entry of FONTSET if any from | |
1790 | auto_fontset_alist so that FONTSET is not re-used by | |
1791 | fontset_from_font. */ | |
1792 | ||
1793 | static void | |
971de7fb | 1794 | update_auto_fontset_alist (Lisp_Object font_object, Lisp_Object fontset) |
d6490542 KH |
1795 | { |
1796 | Lisp_Object prev, tail; | |
1797 | ||
1798 | for (prev = Qnil, tail = auto_fontset_alist; CONSP (tail); | |
1799 | prev = tail, tail = XCDR (tail)) | |
1800 | if (EQ (fontset, XCDR (XCAR (tail)))) | |
1801 | { | |
1802 | if (NILP (prev)) | |
1803 | auto_fontset_alist = XCDR (tail); | |
1804 | else | |
1805 | XSETCDR (prev, XCDR (tail)); | |
1806 | break; | |
1807 | } | |
1808 | } | |
1809 | ||
1810 | ||
fe44f009 KH |
1811 | /* Return a cons (FONT-OBJECT . GLYPH-CODE). |
1812 | FONT-OBJECT is the font for the character at POSITION in the current | |
1ff005e1 | 1813 | buffer. This is computed from all the text properties and overlays |
09e80d9f | 1814 | that apply to POSITION. POSITION may be nil, in which case, |
fe44f009 | 1815 | FONT-SPEC is the font for displaying the character CH with the |
cf14fd6e KH |
1816 | default face. |
1817 | ||
92c15c34 KH |
1818 | GLYPH-CODE is the glyph code in the font to use for the character. |
1819 | ||
1820 | If the 2nd optional arg CH is non-nil, it is a character to check | |
1821 | the font instead of the character at POSITION. | |
1822 | ||
1823 | It returns nil in the following cases: | |
1ff005e1 KH |
1824 | |
1825 | (1) The window system doesn't have a font for the character (thus | |
1826 | it is displayed by an empty box). | |
1827 | ||
1828 | (2) The character code is invalid. | |
1829 | ||
cf14fd6e KH |
1830 | (3) If POSITION is not nil, and the current buffer is not displayed |
1831 | in any window. | |
1ff005e1 KH |
1832 | |
1833 | In addition, the returned font name may not take into account of | |
1834 | such redisplay engine hooks as what used in jit-lock-mode if | |
1835 | POSITION is currently not visible. */ | |
1836 | ||
1837 | ||
92c15c34 | 1838 | DEFUN ("internal-char-font", Finternal_char_font, Sinternal_char_font, 1, 2, 0, |
335c5470 | 1839 | doc: /* For internal use only. */) |
5842a27b | 1840 | (Lisp_Object position, Lisp_Object ch) |
1ff005e1 | 1841 | { |
d311d28c | 1842 | ptrdiff_t pos, pos_byte, dummy; |
1ff005e1 KH |
1843 | int face_id; |
1844 | int c; | |
1ff005e1 KH |
1845 | struct frame *f; |
1846 | struct face *face; | |
1847 | ||
cf14fd6e | 1848 | if (NILP (position)) |
92c15c34 KH |
1849 | { |
1850 | CHECK_CHARACTER (ch); | |
1851 | c = XINT (ch); | |
cf14fd6e | 1852 | f = XFRAME (selected_frame); |
f2cec7a9 | 1853 | face_id = lookup_basic_face (f, DEFAULT_FACE_ID); |
327719ee | 1854 | pos = -1; |
cf14fd6e KH |
1855 | } |
1856 | else | |
1857 | { | |
f0397f5a | 1858 | Lisp_Object window; |
cf14fd6e KH |
1859 | struct window *w; |
1860 | ||
1861 | CHECK_NUMBER_COERCE_MARKER (position); | |
d311d28c | 1862 | if (! (BEGV <= XINT (position) && XINT (position) < ZV)) |
cf14fd6e | 1863 | args_out_of_range_3 (position, make_number (BEGV), make_number (ZV)); |
d311d28c | 1864 | pos = XINT (position); |
cf14fd6e KH |
1865 | pos_byte = CHAR_TO_BYTE (pos); |
1866 | if (NILP (ch)) | |
1867 | c = FETCH_CHAR (pos_byte); | |
1868 | else | |
1869 | { | |
1870 | CHECK_NATNUM (ch); | |
1871 | c = XINT (ch); | |
1872 | } | |
1873 | window = Fget_buffer_window (Fcurrent_buffer (), Qnil); | |
1874 | if (NILP (window)) | |
1875 | return Qnil; | |
1876 | w = XWINDOW (window); | |
d3d50620 | 1877 | f = XFRAME (w->frame); |
6970f632 CY |
1878 | face_id = face_at_buffer_position (w, pos, -1, -1, &dummy, |
1879 | pos + 100, 0, -1); | |
92c15c34 | 1880 | } |
2638320e | 1881 | if (! CHAR_VALID_P (c)) |
1ff005e1 | 1882 | return Qnil; |
3fa1e84d EZ |
1883 | if (!FRAME_WINDOW_P (f)) |
1884 | return Qnil; | |
327719ee | 1885 | face_id = FACE_FOR_CHAR (f, FACE_FROM_ID (f, face_id), c, pos, Qnil); |
1ff005e1 | 1886 | face = FACE_FROM_ID (f, face_id); |
581f7ac7 | 1887 | if (face->font) |
8aa07a8d | 1888 | { |
fe44f009 KH |
1889 | unsigned code = face->font->driver->encode_char (face->font, c); |
1890 | Lisp_Object font_object; | |
581f7ac7 KH |
1891 | |
1892 | if (code == FONT_INVALID_CODE) | |
1893 | return Qnil; | |
fe44f009 | 1894 | XSETFONT (font_object, face->font); |
be44ca6c | 1895 | return Fcons (font_object, INTEGER_TO_CONS (code)); |
92c15c34 KH |
1896 | } |
1897 | return Qnil; | |
1ff005e1 KH |
1898 | } |
1899 | ||
1900 | ||
1d5d7200 KH |
1901 | DEFUN ("fontset-info", Ffontset_info, Sfontset_info, 1, 2, 0, |
1902 | doc: /* Return information about a fontset FONTSET on frame FRAME. | |
e2b45cf9 | 1903 | |
a3d16f39 KH |
1904 | FONTSET is a fontset name string, nil for the fontset of FRAME, or t |
1905 | for the default fontset. FRAME nil means the selected frame. | |
1ff005e1 | 1906 | |
a3d16f39 | 1907 | The value is a char-table whose elements have this form: |
1ff005e1 | 1908 | |
a3d16f39 | 1909 | ((FONT OPENED-FONT ...) ...) |
1ff005e1 | 1910 | |
a3d16f39 | 1911 | FONT is a name of font specified for a range of characters. |
1ff005e1 | 1912 | |
d6aaac9e | 1913 | OPENED-FONT is a name of a font actually opened. |
1ff005e1 | 1914 | |
a3d16f39 KH |
1915 | The char-table has one extra slot. If FONTSET is not the default |
1916 | fontset, the value the extra slot is a char-table containing the | |
1917 | information about the derived fonts from the default fontset. The | |
1918 | format is the same as above. */) | |
5842a27b | 1919 | (Lisp_Object fontset, Lisp_Object frame) |
4ed46869 | 1920 | { |
cc7b6145 KH |
1921 | Lisp_Object *realized[2], fontsets[2], tables[2]; |
1922 | Lisp_Object val, elt; | |
1923 | int c, i, j, k; | |
fc8865fc | 1924 | |
7452b7bd | 1925 | check_window_system (NULL); |
a3d16f39 | 1926 | fontset = check_fontset_name (fontset, &frame); |
4ed46869 | 1927 | |
1d5d7200 KH |
1928 | /* Recode fontsets realized on FRAME from the base fontset FONTSET |
1929 | in the table `realized'. */ | |
663e2b3f | 1930 | realized[0] = alloca (word_size * ASIZE (Vfontset_table)); |
cc7b6145 | 1931 | for (i = j = 0; i < ASIZE (Vfontset_table); i++) |
0d407d77 | 1932 | { |
1ff005e1 KH |
1933 | elt = FONTSET_FROM_ID (i); |
1934 | if (!NILP (elt) | |
1d5d7200 KH |
1935 | && EQ (FONTSET_BASE (elt), fontset) |
1936 | && EQ (FONTSET_FRAME (elt), frame)) | |
cc7b6145 | 1937 | realized[0][j++] = elt; |
0d407d77 | 1938 | } |
cc7b6145 | 1939 | realized[0][j] = Qnil; |
4ed46869 | 1940 | |
663e2b3f | 1941 | realized[1] = alloca (word_size * ASIZE (Vfontset_table)); |
cc7b6145 KH |
1942 | for (i = j = 0; ! NILP (realized[0][i]); i++) |
1943 | { | |
1944 | elt = FONTSET_DEFAULT (realized[0][i]); | |
1945 | if (! NILP (elt)) | |
1946 | realized[1][j++] = elt; | |
1947 | } | |
1948 | realized[1][j] = Qnil; | |
1949 | ||
1950 | tables[0] = Fmake_char_table (Qfontset_info, Qnil); | |
cc7b6145 | 1951 | fontsets[0] = fontset; |
348db3dd | 1952 | if (!EQ (fontset, Vdefault_fontset)) |
a3d16f39 KH |
1953 | { |
1954 | tables[1] = Fmake_char_table (Qnil, Qnil); | |
34dabdb7 | 1955 | set_char_table_extras (tables[0], 0, tables[1]); |
a3d16f39 KH |
1956 | fontsets[1] = Vdefault_fontset; |
1957 | } | |
e2b45cf9 | 1958 | |
1d5d7200 KH |
1959 | /* Accumulate information of the fontset in TABLE. The format of |
1960 | each element is ((FONT-SPEC OPENED-FONT ...) ...). */ | |
cc7b6145 | 1961 | for (k = 0; k <= 1; k++) |
0d407d77 | 1962 | { |
cc7b6145 | 1963 | for (c = 0; c <= MAX_CHAR; ) |
d6aaac9e | 1964 | { |
5b30be1a | 1965 | int from = c, to = MAX_5_BYTE_CHAR; |
0d407d77 | 1966 | |
cc7b6145 KH |
1967 | if (c <= MAX_5_BYTE_CHAR) |
1968 | { | |
1969 | val = char_table_ref_and_range (fontsets[k], c, &from, &to); | |
cc7b6145 KH |
1970 | } |
1971 | else | |
1972 | { | |
1973 | val = FONTSET_FALLBACK (fontsets[k]); | |
1974 | to = MAX_CHAR; | |
1975 | } | |
d6aaac9e | 1976 | if (VECTORP (val)) |
0d407d77 | 1977 | { |
d6aaac9e KH |
1978 | Lisp_Object alist; |
1979 | ||
1980 | /* At first, set ALIST to ((FONT-SPEC) ...). */ | |
1981 | for (alist = Qnil, i = 0; i < ASIZE (val); i++) | |
581f7ac7 KH |
1982 | if (! NILP (AREF (val, i))) |
1983 | alist = Fcons (Fcons (FONT_DEF_SPEC (AREF (val, i)), Qnil), | |
1984 | alist); | |
d6aaac9e KH |
1985 | alist = Fnreverse (alist); |
1986 | ||
660100f3 | 1987 | /* Then store opened font names to cdr of each elements. */ |
cc7b6145 | 1988 | for (i = 0; ! NILP (realized[k][i]); i++) |
1ff005e1 | 1989 | { |
cc7b6145 KH |
1990 | if (c <= MAX_5_BYTE_CHAR) |
1991 | val = FONTSET_REF (realized[k][i], c); | |
1992 | else | |
1993 | val = FONTSET_FALLBACK (realized[k][i]); | |
a3d16f39 | 1994 | if (! CONSP (val) || ! VECTORP (XCDR (val))) |
d6aaac9e | 1995 | continue; |
a3d16f39 KH |
1996 | /* VAL: (int . [[FACE-ID FONT-DEF FONT-OBJECT int] ... ]) */ |
1997 | val = XCDR (val); | |
1998 | for (j = 0; j < ASIZE (val); j++) | |
3d4448a8 | 1999 | { |
581f7ac7 KH |
2000 | elt = AREF (val, j); |
2001 | if (FONT_OBJECT_P (RFONT_DEF_OBJECT (elt))) | |
2002 | { | |
2003 | Lisp_Object font_object = RFONT_DEF_OBJECT (elt); | |
2004 | Lisp_Object slot, name; | |
2005 | ||
2006 | slot = Fassq (RFONT_DEF_SPEC (elt), alist); | |
2007 | name = AREF (font_object, FONT_NAME_INDEX); | |
2008 | if (NILP (Fmember (name, XCDR (slot)))) | |
6c6f1994 | 2009 | nconc2 (slot, list1 (name)); |
581f7ac7 | 2010 | } |
3d4448a8 | 2011 | } |
1ff005e1 | 2012 | } |
d6aaac9e KH |
2013 | |
2014 | /* Store ALIST in TBL for characters C..TO. */ | |
cc7b6145 KH |
2015 | if (c <= MAX_5_BYTE_CHAR) |
2016 | char_table_set_range (tables[k], c, to, alist); | |
2017 | else | |
742af32f | 2018 | set_char_table_defalt (tables[k], alist); |
581f7ac7 KH |
2019 | |
2020 | /* At last, change each elements to font names. */ | |
2021 | for (; CONSP (alist); alist = XCDR (alist)) | |
2022 | { | |
2023 | elt = XCAR (alist); | |
7ae2e7f0 | 2024 | XSETCAR (elt, Ffont_xlfd_name (XCAR (elt), Qnil)); |
581f7ac7 | 2025 | } |
0d407d77 | 2026 | } |
d6aaac9e | 2027 | c = to + 1; |
0d407d77 | 2028 | } |
348db3dd | 2029 | if (EQ (fontset, Vdefault_fontset)) |
a3d16f39 | 2030 | break; |
0d407d77 | 2031 | } |
a921395d | 2032 | |
cc7b6145 | 2033 | return tables[0]; |
4ed46869 KH |
2034 | } |
2035 | ||
1d5d7200 | 2036 | |
0fdf26e6 | 2037 | DEFUN ("fontset-font", Ffontset_font, Sfontset_font, 2, 3, 0, |
335c5470 | 2038 | doc: /* Return a font name pattern for character CH in fontset NAME. |
0fdf26e6 | 2039 | If NAME is t, find a pattern in the default fontset. |
5fc05db0 | 2040 | If NAME is nil, find a pattern in the fontset of the selected frame. |
0fdf26e6 KH |
2041 | |
2042 | The value has the form (FAMILY . REGISTRY), where FAMILY is a font | |
2043 | family name and REGISTRY is a font registry name. This is actually | |
2044 | the first font name pattern for CH in the fontset or in the default | |
2045 | fontset. | |
2046 | ||
2047 | If the 2nd optional arg ALL is non-nil, return a list of all font name | |
2048 | patterns. */) | |
5842a27b | 2049 | (Lisp_Object name, Lisp_Object ch, Lisp_Object all) |
0d407d77 | 2050 | { |
1337ac77 | 2051 | int c; |
0fdf26e6 KH |
2052 | Lisp_Object fontset, elt, list, repertory, val; |
2053 | int i, j; | |
a3d16f39 | 2054 | Lisp_Object frame; |
0d407d77 | 2055 | |
a3d16f39 KH |
2056 | frame = Qnil; |
2057 | fontset = check_fontset_name (name, &frame); | |
0d407d77 | 2058 | |
06f76f0d | 2059 | CHECK_CHARACTER (ch); |
0d407d77 | 2060 | c = XINT (ch); |
0fdf26e6 KH |
2061 | list = Qnil; |
2062 | while (1) | |
2063 | { | |
2064 | for (i = 0, elt = FONTSET_REF (fontset, c); i < 2; | |
2065 | i++, elt = FONTSET_FALLBACK (fontset)) | |
2066 | if (VECTORP (elt)) | |
2067 | for (j = 0; j < ASIZE (elt); j++) | |
2068 | { | |
a124bbb6 KH |
2069 | Lisp_Object family, registry; |
2070 | ||
0fdf26e6 | 2071 | val = AREF (elt, j); |
5fc05db0 | 2072 | if (NILP (val)) |
563a866e | 2073 | return Qnil; |
0fdf26e6 KH |
2074 | repertory = AREF (val, 1); |
2075 | if (INTEGERP (repertory)) | |
2076 | { | |
2077 | struct charset *charset = CHARSET_FROM_ID (XINT (repertory)); | |
2078 | ||
2079 | if (! CHAR_CHARSET_P (c, charset)) | |
2080 | continue; | |
2081 | } | |
2082 | else if (CHAR_TABLE_P (repertory)) | |
2083 | { | |
2084 | if (NILP (CHAR_TABLE_REF (repertory, c))) | |
2085 | continue; | |
2086 | } | |
2087 | val = AREF (val, 0); | |
a124bbb6 KH |
2088 | /* VAL is a FONT-SPEC */ |
2089 | family = AREF (val, FONT_FAMILY_INDEX); | |
2090 | if (! NILP (family)) | |
2091 | family = SYMBOL_NAME (family); | |
2092 | registry = AREF (val, FONT_REGISTRY_INDEX); | |
2093 | if (! NILP (registry)) | |
2094 | registry = SYMBOL_NAME (registry); | |
2095 | val = Fcons (family, registry); | |
0fdf26e6 KH |
2096 | if (NILP (all)) |
2097 | return val; | |
2098 | list = Fcons (val, list); | |
2099 | } | |
2100 | if (EQ (fontset, Vdefault_fontset)) | |
2101 | break; | |
2102 | fontset = Vdefault_fontset; | |
2103 | } | |
2104 | return (Fnreverse (list)); | |
0d407d77 | 2105 | } |
0d407d77 KH |
2106 | |
2107 | DEFUN ("fontset-list", Ffontset_list, Sfontset_list, 0, 0, 0, | |
335c5470 | 2108 | doc: /* Return a list of all defined fontset names. */) |
5842a27b | 2109 | (void) |
0d407d77 KH |
2110 | { |
2111 | Lisp_Object fontset, list; | |
2112 | int i; | |
2113 | ||
2114 | list = Qnil; | |
2115 | for (i = 0; i < ASIZE (Vfontset_table); i++) | |
2116 | { | |
2117 | fontset = FONTSET_FROM_ID (i); | |
2118 | if (!NILP (fontset) | |
2119 | && BASE_FONTSET_P (fontset)) | |
2120 | list = Fcons (FONTSET_NAME (fontset), list); | |
2121 | } | |
1ff005e1 | 2122 | |
0d407d77 KH |
2123 | return list; |
2124 | } | |
2125 | ||
452a78e0 | 2126 | |
a54e2c05 | 2127 | #ifdef ENABLE_CHECKING |
452a78e0 | 2128 | |
8a10d76c PE |
2129 | Lisp_Object dump_fontset (Lisp_Object) EXTERNALLY_VISIBLE; |
2130 | ||
452a78e0 | 2131 | Lisp_Object |
ef1b0ba7 | 2132 | dump_fontset (Lisp_Object fontset) |
452a78e0 KH |
2133 | { |
2134 | Lisp_Object vec; | |
2135 | ||
2136 | vec = Fmake_vector (make_number (3), Qnil); | |
2137 | ASET (vec, 0, FONTSET_ID (fontset)); | |
2138 | ||
2139 | if (BASE_FONTSET_P (fontset)) | |
2140 | { | |
2141 | ASET (vec, 1, FONTSET_NAME (fontset)); | |
2142 | } | |
2143 | else | |
2144 | { | |
2145 | Lisp_Object frame; | |
2146 | ||
2147 | frame = FONTSET_FRAME (fontset); | |
2148 | if (FRAMEP (frame)) | |
2149 | { | |
a10c8269 | 2150 | struct frame *f = XFRAME (frame); |
452a78e0 KH |
2151 | |
2152 | if (FRAME_LIVE_P (f)) | |
1c82b4b3 | 2153 | ASET (vec, 1, |
5b20b3cc | 2154 | Fcons (FONTSET_NAME (FONTSET_BASE (fontset)), |
e69b0960 | 2155 | f->name)); |
452a78e0 | 2156 | else |
1c82b4b3 KH |
2157 | ASET (vec, 1, |
2158 | Fcons (FONTSET_NAME (FONTSET_BASE (fontset)), Qnil)); | |
452a78e0 | 2159 | } |
eb36588a KH |
2160 | if (!NILP (FONTSET_DEFAULT (fontset))) |
2161 | ASET (vec, 2, FONTSET_ID (FONTSET_DEFAULT (fontset))); | |
452a78e0 KH |
2162 | } |
2163 | return vec; | |
2164 | } | |
2165 | ||
a7ca3326 | 2166 | DEFUN ("fontset-list-all", Ffontset_list_all, Sfontset_list_all, 0, 0, 0, |
452a78e0 | 2167 | doc: /* Return a brief summary of all fontsets for debug use. */) |
5842a27b | 2168 | (void) |
452a78e0 KH |
2169 | { |
2170 | Lisp_Object val; | |
2171 | int i; | |
2172 | ||
2173 | for (i = 0, val = Qnil; i < ASIZE (Vfontset_table); i++) | |
2174 | if (! NILP (AREF (Vfontset_table, i))) | |
2175 | val = Fcons (dump_fontset (AREF (Vfontset_table, i)), val); | |
2176 | return (Fnreverse (val)); | |
2177 | } | |
a54e2c05 | 2178 | #endif /* ENABLE_CHECKING */ |
452a78e0 | 2179 | |
dfcf069d | 2180 | void |
971de7fb | 2181 | syms_of_fontset (void) |
4ed46869 | 2182 | { |
1d5d7200 | 2183 | DEFSYM (Qfontset, "fontset"); |
eb36588a | 2184 | Fput (Qfontset, Qchar_table_extra_slots, make_number (9)); |
d6aaac9e KH |
2185 | DEFSYM (Qfontset_info, "fontset-info"); |
2186 | Fput (Qfontset_info, Qchar_table_extra_slots, make_number (1)); | |
4ed46869 | 2187 | |
1d5d7200 KH |
2188 | DEFSYM (Qprepend, "prepend"); |
2189 | DEFSYM (Qappend, "append"); | |
c3fb88cc | 2190 | DEFSYM (Qlatin, "latin"); |
4ed46869 KH |
2191 | |
2192 | Vcached_fontset_data = Qnil; | |
2193 | staticpro (&Vcached_fontset_data); | |
2194 | ||
0d407d77 KH |
2195 | Vfontset_table = Fmake_vector (make_number (32), Qnil); |
2196 | staticpro (&Vfontset_table); | |
0d407d77 KH |
2197 | |
2198 | Vdefault_fontset = Fmake_char_table (Qfontset, Qnil); | |
2199 | staticpro (&Vdefault_fontset); | |
d0d2d26f PE |
2200 | set_fontset_id (Vdefault_fontset, make_number (0)); |
2201 | set_fontset_name | |
6d470bdd DA |
2202 | (Vdefault_fontset, |
2203 | build_pure_c_string ("-*-*-*-*-*-*-*-*-*-*-*-*-fontset-default")); | |
ff7a2223 | 2204 | ASET (Vfontset_table, 0, Vdefault_fontset); |
1ff005e1 | 2205 | next_fontset_id = 1; |
4ed46869 | 2206 | |
452a78e0 KH |
2207 | auto_fontset_alist = Qnil; |
2208 | staticpro (&auto_fontset_alist); | |
2209 | ||
29208e82 | 2210 | DEFVAR_LISP ("font-encoding-charset-alist", Vfont_encoding_charset_alist, |
28e2436a KH |
2211 | doc: /* |
2212 | Alist of charsets vs the charsets to determine the preferred font encoding. | |
eb152aa9 | 2213 | Each element looks like (CHARSET . ENCODING-CHARSET), |
28e2436a KH |
2214 | where ENCODING-CHARSET is a charset registered in the variable |
2215 | `font-encoding-alist' as ENCODING. | |
2216 | ||
2217 | When a text has a property `charset' and the value is CHARSET, a font | |
2218 | whose encoding corresponds to ENCODING-CHARSET is preferred. */); | |
2219 | Vfont_encoding_charset_alist = Qnil; | |
2220 | ||
29208e82 | 2221 | DEFVAR_LISP ("use-default-ascent", Vuse_default_ascent, |
1d5d7200 KH |
2222 | doc: /* |
2223 | Char table of characters whose ascent values should be ignored. | |
335c5470 | 2224 | If an entry for a character is non-nil, the ascent value of the glyph |
eb152aa9 | 2225 | is assumed to be specified by _MULE_DEFAULT_ASCENT property of a font. |
335c5470 PJ |
2226 | |
2227 | This affects how a composite character which contains | |
2228 | such a character is displayed on screen. */); | |
2aeafb78 KH |
2229 | Vuse_default_ascent = Qnil; |
2230 | ||
29208e82 | 2231 | DEFVAR_LISP ("ignore-relative-composition", Vignore_relative_composition, |
1d5d7200 | 2232 | doc: /* |
eb152aa9 | 2233 | Char table of characters which are not composed relatively. |
335c5470 PJ |
2234 | If an entry for a character is non-nil, a composition sequence |
2235 | which contains that character is displayed so that | |
2236 | the glyph of that character is put without considering | |
2237 | an ascent and descent value of a previous character. */); | |
810abb87 | 2238 | Vignore_relative_composition = Qnil; |
6a7e6d80 | 2239 | |
29208e82 | 2240 | DEFVAR_LISP ("alternate-fontname-alist", Valternate_fontname_alist, |
335c5470 PJ |
2241 | doc: /* Alist of fontname vs list of the alternate fontnames. |
2242 | When a specified font name is not found, the corresponding | |
2243 | alternate fontnames (if any) are tried instead. */); | |
01d4b817 | 2244 | Valternate_fontname_alist = Qnil; |
8c83e4f9 | 2245 | |
29208e82 | 2246 | DEFVAR_LISP ("fontset-alias-alist", Vfontset_alias_alist, |
335c5470 | 2247 | doc: /* Alist of fontset names vs the aliases. */); |
6c6f1994 PE |
2248 | Vfontset_alias_alist |
2249 | = list1 (Fcons (FONTSET_NAME (Vdefault_fontset), | |
2250 | build_pure_c_string ("fontset-default"))); | |
1c283e35 | 2251 | |
810abb87 | 2252 | DEFVAR_LISP ("vertical-centering-font-regexp", |
29208e82 | 2253 | Vvertical_centering_font_regexp, |
fb7ada5f | 2254 | doc: /* Regexp matching font names that require vertical centering on display. |
335c5470 | 2255 | When a character is displayed with such fonts, the character is displayed |
fc8865fc | 2256 | at the vertical center of lines. */); |
810abb87 KH |
2257 | Vvertical_centering_font_regexp = Qnil; |
2258 | ||
29208e82 | 2259 | DEFVAR_LISP ("otf-script-alist", Votf_script_alist, |
21ff5ed6 KH |
2260 | doc: /* Alist of OpenType script tags vs the corresponding script names. */); |
2261 | Votf_script_alist = Qnil; | |
2262 | ||
4ed46869 KH |
2263 | defsubr (&Squery_fontset); |
2264 | defsubr (&Snew_fontset); | |
2265 | defsubr (&Sset_fontset_font); | |
1ff005e1 | 2266 | defsubr (&Sinternal_char_font); |
4ed46869 | 2267 | defsubr (&Sfontset_info); |
0d407d77 KH |
2268 | defsubr (&Sfontset_font); |
2269 | defsubr (&Sfontset_list); | |
a54e2c05 | 2270 | #ifdef ENABLE_CHECKING |
452a78e0 KH |
2271 | defsubr (&Sfontset_list_all); |
2272 | #endif | |
e3400864 | 2273 | } |