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4ed46869 | 1 | /* Fontset handler. |
95df8112 | 2 | |
acaf905b | 3 | Copyright (C) 2001-2012 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> |
d7306fe6 | 29 | #include <setjmp.h> |
0d407d77 | 30 | |
4ed46869 | 31 | #include "lisp.h" |
06f76f0d | 32 | #include "blockinput.h" |
06f76f0d | 33 | #include "character.h" |
e5560ff7 | 34 | #include "buffer.h" |
4ed46869 KH |
35 | #include "charset.h" |
36 | #include "ccl.h" | |
2538fae4 | 37 | #include "keyboard.h" |
4ed46869 | 38 | #include "frame.h" |
0d407d77 | 39 | #include "dispextern.h" |
e1a14cdc | 40 | #include "intervals.h" |
3541bb8f | 41 | #include "fontset.h" |
0d407d77 | 42 | #include "window.h" |
92c15c34 KH |
43 | #ifdef HAVE_X_WINDOWS |
44 | #include "xterm.h" | |
45 | #endif | |
46 | #ifdef WINDOWSNT | |
47 | #include "w32term.h" | |
48 | #endif | |
edfda783 AR |
49 | #ifdef HAVE_NS |
50 | #include "nsterm.h" | |
51 | #endif | |
fa971ac3 | 52 | #include "termhooks.h" |
0d407d77 | 53 | |
8aa07a8d | 54 | #include "font.h" |
8aa07a8d | 55 | |
0d407d77 KH |
56 | /* FONTSET |
57 | ||
58 | A fontset is a collection of font related information to give | |
1d5d7200 KH |
59 | similar appearance (style, etc) of characters. A fontset has two |
60 | roles. One is to use for the frame parameter `font' as if it is an | |
61 | ASCII font. In that case, Emacs uses the font specified for | |
62 | `ascii' script for the frame's default font. | |
63 | ||
64 | Another role, the more important one, is to provide information | |
65 | about which font to use for each non-ASCII character. | |
66 | ||
67 | There are two kinds of fontsets; base and realized. A base fontset | |
68 | is created by `new-fontset' from Emacs Lisp explicitly. A realized | |
69 | fontset is created implicitly when a face is realized for ASCII | |
70 | characters. A face is also realized for non-ASCII characters based | |
71 | on an ASCII face. All of non-ASCII faces based on the same ASCII | |
72 | face share the same realized fontset. | |
8f924df7 | 73 | |
06f76f0d KH |
74 | A fontset object is implemented by a char-table whose default value |
75 | and parent are always nil. | |
fc8865fc | 76 | |
1d5d7200 KH |
77 | An element of a base fontset is a vector of FONT-DEFs which itself |
78 | is a vector [ FONT-SPEC ENCODING REPERTORY ]. | |
79 | ||
f088b054 KH |
80 | An element of a realized fontset is nil, t, 0, or a vector of this |
81 | form: | |
7e1a1cd9 | 82 | |
581f7ac7 KH |
83 | [ CHARSET-ORDERED-LIST-TICK PREFERRED-RFONT-DEF |
84 | RFONT-DEF0 RFONT-DEF1 ... ] | |
0d407d77 | 85 | |
7e1a1cd9 | 86 | RFONT-DEFn (i.e. Realized FONT-DEF) has this form: |
0d407d77 | 87 | |
581f7ac7 | 88 | [ FACE-ID FONT-DEF FONT-OBJECT SORTING-SCORE ] |
0d407d77 | 89 | |
581f7ac7 | 90 | RFONT-DEFn are automatically reordered by the current charset |
1d5d7200 | 91 | priority list. |
0d407d77 | 92 | |
7e1a1cd9 KH |
93 | The value nil means that we have not yet generated the above vector |
94 | from the base of the fontset. | |
0d407d77 | 95 | |
1d5d7200 KH |
96 | The value t means that no font is available for the corresponding |
97 | range of characters. | |
0d407d77 | 98 | |
f088b054 KH |
99 | The value 0 means that no font is available for the corresponding |
100 | range of characters in this fontset, but may be available in the | |
101 | default fontset. | |
102 | ||
0d407d77 | 103 | |
eb36588a | 104 | A fontset has 9 extra slots. |
0d407d77 | 105 | |
1d5d7200 | 106 | The 1st slot: the ID number of the fontset |
0d407d77 | 107 | |
1d5d7200 KH |
108 | The 2nd slot: |
109 | base: the name of the fontset | |
110 | realized: nil | |
0d407d77 | 111 | |
1d5d7200 | 112 | The 3rd slot: |
d6aaac9e | 113 | base: nil |
1d5d7200 | 114 | realized: the base fontset |
06f76f0d | 115 | |
1d5d7200 KH |
116 | The 4th slot: |
117 | base: nil | |
118 | realized: the frame that the fontset belongs to | |
0d407d77 | 119 | |
1d5d7200 KH |
120 | The 5th slot: |
121 | base: the font name for ASCII characters | |
122 | realized: nil | |
0d407d77 | 123 | |
1d5d7200 KH |
124 | The 6th slot: |
125 | base: nil | |
126 | realized: the ID number of a face to use for characters that | |
127 | has no font in a realized fontset. | |
0d407d77 | 128 | |
1d5d7200 KH |
129 | The 7th slot: |
130 | base: nil | |
131 | realized: Alist of font index vs the corresponding repertory | |
132 | char-table. | |
eb152aa9 | 133 | |
d6aaac9e KH |
134 | The 8th slot: |
135 | base: nil | |
136 | realized: If the base is not the default fontset, a fontset | |
137 | realized from the default fontset, else nil. | |
1d5d7200 | 138 | |
eb36588a | 139 | The 9th slot: |
cc7b6145 KH |
140 | base: Same as element value (but for fallback fonts). |
141 | realized: Likewise. | |
eb36588a | 142 | |
1d5d7200 | 143 | All fontsets are recorded in the vector Vfontset_table. |
0d407d77 KH |
144 | |
145 | ||
146 | DEFAULT FONTSET | |
147 | ||
1d5d7200 KH |
148 | There's a special base fontset named `default fontset' which |
149 | defines the default font specifications. When a base fontset | |
150 | doesn't specify a font for a specific character, the corresponding | |
151 | value in the default fontset is used. | |
0d407d77 | 152 | |
afe93d01 KH |
153 | The parent of a realized fontset created for such a face that has |
154 | no fontset is the default fontset. | |
0d407d77 KH |
155 | |
156 | ||
157 | These structures are hidden from the other codes than this file. | |
158 | The other codes handle fontsets only by their ID numbers. They | |
06f76f0d | 159 | usually use the variable name `fontset' for IDs. But, in this |
c80e3b4a | 160 | file, we always use variable name `id' for IDs, and name `fontset' |
1d5d7200 | 161 | for an actual fontset object, i.e., char-table. |
0d407d77 KH |
162 | |
163 | */ | |
164 | ||
165 | /********** VARIABLES and FUNCTION PROTOTYPES **********/ | |
166 | ||
d6aaac9e KH |
167 | static Lisp_Object Qfontset; |
168 | static Lisp_Object Qfontset_info; | |
1d5d7200 | 169 | static Lisp_Object Qprepend, Qappend; |
ef6e0694 | 170 | Lisp_Object Qlatin; |
0d407d77 KH |
171 | |
172 | /* Vector containing all fontsets. */ | |
173 | static Lisp_Object Vfontset_table; | |
174 | ||
fc8865fc | 175 | /* Next possibly free fontset ID. Usually this keeps the minimum |
0d407d77 KH |
176 | fontset ID not yet used. */ |
177 | static int next_fontset_id; | |
178 | ||
179 | /* The default fontset. This gives default FAMILY and REGISTRY of | |
06f76f0d | 180 | font for each character. */ |
0d407d77 | 181 | static Lisp_Object Vdefault_fontset; |
4ed46869 | 182 | |
4ed46869 | 183 | /* Check if any window system is used now. */ |
f57e2426 | 184 | void (*check_window_system_func) (void); |
4ed46869 | 185 | |
0d407d77 KH |
186 | |
187 | /* Prototype declarations for static functions. */ | |
f57e2426 J |
188 | static Lisp_Object fontset_add (Lisp_Object, Lisp_Object, Lisp_Object, |
189 | Lisp_Object); | |
190 | static Lisp_Object fontset_find_font (Lisp_Object, int, struct face *, | |
191 | int, int); | |
192 | static void reorder_font_vector (Lisp_Object, struct font *); | |
193 | static Lisp_Object fontset_font (Lisp_Object, int, struct face *, int); | |
194 | static Lisp_Object make_fontset (Lisp_Object, Lisp_Object, Lisp_Object); | |
195 | static Lisp_Object fontset_pattern_regexp (Lisp_Object); | |
196 | static void accumulate_script_ranges (Lisp_Object, Lisp_Object, | |
197 | Lisp_Object); | |
f57e2426 | 198 | static void set_fontset_font (Lisp_Object, Lisp_Object); |
2449d4d0 | 199 | |
a54e2c05 | 200 | #ifdef ENABLE_CHECKING |
556383ac KH |
201 | |
202 | /* Return 1 if ID is a valid fontset id, else return 0. */ | |
203 | ||
204 | static int | |
ef1b0ba7 | 205 | fontset_id_valid_p (int id) |
556383ac KH |
206 | { |
207 | return (id >= 0 && id < ASIZE (Vfontset_table) - 1); | |
208 | } | |
209 | ||
210 | #endif | |
211 | ||
0d407d77 KH |
212 | |
213 | \f | |
214 | /********** MACROS AND FUNCTIONS TO HANDLE FONTSET **********/ | |
215 | ||
0d407d77 KH |
216 | /* Return the fontset with ID. No check of ID's validness. */ |
217 | #define FONTSET_FROM_ID(id) AREF (Vfontset_table, id) | |
218 | ||
afe93d01 | 219 | /* Macros to access special values of FONTSET. */ |
0d407d77 | 220 | #define FONTSET_ID(fontset) XCHAR_TABLE (fontset)->extras[0] |
06f76f0d KH |
221 | |
222 | /* Macros to access special values of (base) FONTSET. */ | |
0d407d77 | 223 | #define FONTSET_NAME(fontset) XCHAR_TABLE (fontset)->extras[1] |
06f76f0d | 224 | #define FONTSET_ASCII(fontset) XCHAR_TABLE (fontset)->extras[4] |
a9a06e0b | 225 | /* #define FONTSET_SPEC(fontset) XCHAR_TABLE (fontset)->extras[5] */ |
06f76f0d | 226 | |
06f76f0d KH |
227 | /* Macros to access special values of (realized) FONTSET. */ |
228 | #define FONTSET_BASE(fontset) XCHAR_TABLE (fontset)->extras[2] | |
229 | #define FONTSET_FRAME(fontset) XCHAR_TABLE (fontset)->extras[3] | |
239f9db9 | 230 | /* #define FONTSET_OBJLIST(fontset) XCHAR_TABLE (fontset)->extras[4] */ |
1d5d7200 | 231 | #define FONTSET_NOFONT_FACE(fontset) XCHAR_TABLE (fontset)->extras[5] |
a9a06e0b | 232 | /* #define FONTSET_REPERTORY(fontset) XCHAR_TABLE (fontset)->extras[6] */ |
eb36588a KH |
233 | #define FONTSET_DEFAULT(fontset) XCHAR_TABLE (fontset)->extras[7] |
234 | ||
cc7b6145 | 235 | /* For both base and realized fontset. */ |
eb36588a | 236 | #define FONTSET_FALLBACK(fontset) XCHAR_TABLE (fontset)->extras[8] |
0d407d77 | 237 | |
e3400864 | 238 | #define BASE_FONTSET_P(fontset) (NILP (FONTSET_BASE (fontset))) |
0d407d77 KH |
239 | |
240 | ||
581f7ac7 KH |
241 | /* Macros for FONT-DEF and RFONT-DEF of fontset. */ |
242 | #define FONT_DEF_NEW(font_def, font_spec, encoding, repertory) \ | |
243 | do { \ | |
244 | (font_def) = Fmake_vector (make_number (3), (font_spec)); \ | |
245 | ASET ((font_def), 1, encoding); \ | |
246 | ASET ((font_def), 2, repertory); \ | |
247 | } while (0) | |
248 | ||
249 | #define FONT_DEF_SPEC(font_def) AREF (font_def, 0) | |
250 | #define FONT_DEF_ENCODING(font_def) AREF (font_def, 1) | |
251 | #define FONT_DEF_REPERTORY(font_def) AREF (font_def, 2) | |
252 | ||
253 | #define RFONT_DEF_FACE(rfont_def) AREF (rfont_def, 0) | |
254 | #define RFONT_DEF_SET_FACE(rfont_def, face_id) \ | |
255 | ASET ((rfont_def), 0, make_number (face_id)) | |
256 | #define RFONT_DEF_FONT_DEF(rfont_def) AREF (rfont_def, 1) | |
257 | #define RFONT_DEF_SPEC(rfont_def) FONT_DEF_SPEC (AREF (rfont_def, 1)) | |
581f7ac7 KH |
258 | #define RFONT_DEF_OBJECT(rfont_def) AREF (rfont_def, 2) |
259 | #define RFONT_DEF_SET_OBJECT(rfont_def, object) \ | |
260 | ASET ((rfont_def), 2, (object)) | |
9dfdbc0a KH |
261 | /* Score of RFONT_DEF is an integer value; the lowest 8 bits represent |
262 | the order of listing by font backends, the higher bits represents | |
263 | the order given by charset priority list. The smaller value is | |
264 | preferable. */ | |
581f7ac7 KH |
265 | #define RFONT_DEF_SCORE(rfont_def) XINT (AREF (rfont_def, 3)) |
266 | #define RFONT_DEF_SET_SCORE(rfont_def, score) \ | |
267 | ASET ((rfont_def), 3, make_number (score)) | |
268 | #define RFONT_DEF_NEW(rfont_def, font_def) \ | |
269 | do { \ | |
270 | (rfont_def) = Fmake_vector (make_number (4), Qnil); \ | |
271 | ASET ((rfont_def), 1, (font_def)); \ | |
272 | RFONT_DEF_SET_SCORE ((rfont_def), 0); \ | |
273 | } while (0) | |
274 | ||
275 | ||
1d5d7200 KH |
276 | /* Return the element of FONTSET for the character C. If FONTSET is a |
277 | base fontset other then the default fontset and FONTSET doesn't | |
278 | contain information for C, return the information in the default | |
279 | fontset. */ | |
0d407d77 | 280 | |
1d5d7200 KH |
281 | #define FONTSET_REF(fontset, c) \ |
282 | (EQ (fontset, Vdefault_fontset) \ | |
283 | ? CHAR_TABLE_REF (fontset, c) \ | |
284 | : fontset_ref ((fontset), (c))) | |
0d407d77 | 285 | |
afe93d01 | 286 | static Lisp_Object |
971de7fb | 287 | fontset_ref (Lisp_Object fontset, int c) |
0d407d77 | 288 | { |
06f76f0d KH |
289 | Lisp_Object elt; |
290 | ||
1d5d7200 KH |
291 | elt = CHAR_TABLE_REF (fontset, c); |
292 | if (NILP (elt) && ! EQ (fontset, Vdefault_fontset) | |
293 | /* Don't check Vdefault_fontset for a realized fontset. */ | |
294 | && NILP (FONTSET_BASE (fontset))) | |
295 | elt = CHAR_TABLE_REF (Vdefault_fontset, c); | |
0d407d77 KH |
296 | return elt; |
297 | } | |
298 | ||
1d5d7200 KH |
299 | /* Set elements of FONTSET for characters in RANGE to the value ELT. |
300 | RANGE is a cons (FROM . TO), where FROM and TO are character codes | |
301 | specifying a range. */ | |
302 | ||
303 | #define FONTSET_SET(fontset, range, elt) \ | |
304 | Fset_char_table_range ((fontset), (range), (elt)) | |
305 | ||
0d407d77 | 306 | |
1d5d7200 | 307 | /* Modify the elements of FONTSET for characters in RANGE by replacing |
6bad8007 | 308 | with ELT or adding ELT. RANGE is a cons (FROM . TO), where FROM |
1d5d7200 KH |
309 | and TO are character codes specifying a range. If ADD is nil, |
310 | replace with ELT, if ADD is `prepend', prepend ELT, otherwise, | |
311 | append ELT. */ | |
312 | ||
cc7b6145 KH |
313 | #define FONTSET_ADD(fontset, range, elt, add) \ |
314 | (NILP (add) \ | |
315 | ? (NILP (range) \ | |
316 | ? (FONTSET_FALLBACK (fontset) = Fmake_vector (make_number (1), (elt))) \ | |
317 | : Fset_char_table_range ((fontset), (range), \ | |
318 | Fmake_vector (make_number (1), (elt)))) \ | |
1d5d7200 | 319 | : fontset_add ((fontset), (range), (elt), (add))) |
0d407d77 | 320 | |
b11a4ed7 | 321 | static Lisp_Object |
971de7fb | 322 | fontset_add (Lisp_Object fontset, Lisp_Object range, Lisp_Object elt, Lisp_Object add) |
06f76f0d | 323 | { |
eb36588a KH |
324 | Lisp_Object args[2]; |
325 | int idx = (EQ (add, Qappend) ? 0 : 1); | |
326 | ||
327 | args[1 - idx] = Fmake_vector (make_number (1), elt); | |
328 | ||
329 | if (CONSP (range)) | |
330 | { | |
331 | int from = XINT (XCAR (range)); | |
332 | int to = XINT (XCDR (range)); | |
333 | int from1, to1; | |
334 | ||
335 | do { | |
5b30be1a | 336 | from1 = from, to1 = to; |
eb36588a | 337 | args[idx] = char_table_ref_and_range (fontset, from, &from1, &to1); |
eb36588a KH |
338 | char_table_set_range (fontset, from, to1, |
339 | NILP (args[idx]) ? args[1 - idx] | |
340 | : Fvconcat (2, args)); | |
341 | from = to1 + 1; | |
342 | } while (from < to); | |
343 | } | |
344 | else | |
345 | { | |
346 | args[idx] = FONTSET_FALLBACK (fontset); | |
347 | FONTSET_FALLBACK (fontset) | |
348 | = NILP (args[idx]) ? args[1 - idx] : Fvconcat (2, args); | |
349 | } | |
b11a4ed7 | 350 | return Qnil; |
1d5d7200 KH |
351 | } |
352 | ||
581f7ac7 | 353 | static int |
971de7fb | 354 | fontset_compare_rfontdef (const void *val1, const void *val2) |
581f7ac7 | 355 | { |
41ad6003 KH |
356 | return (RFONT_DEF_SCORE (*(Lisp_Object *) val1) |
357 | - RFONT_DEF_SCORE (*(Lisp_Object *) val2)); | |
581f7ac7 | 358 | } |
1d5d7200 | 359 | |
ea0162a6 | 360 | /* Update FONT-GROUP which has this form: |
581f7ac7 KH |
361 | [ CHARSET-ORDERED-LIST-TICK PREFERRED-RFONT-DEF |
362 | RFONT-DEF0 RFONT-DEF1 ... ] | |
20746fe4 | 363 | Reorder RFONT-DEFs according to the current language, and update |
581f7ac7 KH |
364 | CHARSET-ORDERED-LIST-TICK. |
365 | ||
366 | If PREFERRED_FAMILY is not nil, that family has the higher priority | |
367 | if the encoding charsets or languages in font-specs are the same. */ | |
368 | ||
0d407d77 | 369 | static void |
971de7fb | 370 | reorder_font_vector (Lisp_Object font_group, struct font *font) |
1d5d7200 | 371 | { |
41ad6003 | 372 | Lisp_Object vec, font_object; |
1d5d7200 | 373 | int size; |
581f7ac7 KH |
374 | int i; |
375 | int score_changed = 0; | |
1d5d7200 | 376 | |
41ad6003 KH |
377 | if (font) |
378 | XSETFONT (font_object, font); | |
379 | else | |
380 | font_object = Qnil; | |
381 | ||
382 | vec = XCDR (font_group); | |
383 | size = ASIZE (vec); | |
384 | /* Exclude the tailing nil element from the reordering. */ | |
385 | if (NILP (AREF (vec, size - 1))) | |
386 | size--; | |
581f7ac7 KH |
387 | |
388 | for (i = 0; i < size; i++) | |
6bad8007 | 389 | { |
41ad6003 | 390 | Lisp_Object rfont_def = AREF (vec, i); |
581f7ac7 KH |
391 | Lisp_Object font_def = RFONT_DEF_FONT_DEF (rfont_def); |
392 | Lisp_Object font_spec = FONT_DEF_SPEC (font_def); | |
41ad6003 | 393 | int score = RFONT_DEF_SCORE (rfont_def) & 0xFF; |
9dfdbc0a | 394 | Lisp_Object otf_spec = Ffont_get (font_spec, QCotf); |
581f7ac7 | 395 | |
9dfdbc0a KH |
396 | if (! NILP (otf_spec)) |
397 | /* A font-spec with :otf is preferable regardless of encoding | |
398 | and language.. */ | |
399 | ; | |
400 | else if (! font_match_p (font_spec, font_object)) | |
eb152aa9 | 401 | { |
cd872f08 | 402 | Lisp_Object encoding = FONT_DEF_ENCODING (font_def); |
581f7ac7 | 403 | |
cd872f08 | 404 | if (! NILP (encoding)) |
41ad6003 KH |
405 | { |
406 | Lisp_Object tail; | |
581f7ac7 | 407 | |
41ad6003 KH |
408 | for (tail = Vcharset_ordered_list; |
409 | ! EQ (tail, Vcharset_non_preferred_head) && CONSP (tail); | |
d311d28c | 410 | tail = XCDR (tail)) |
cd872f08 | 411 | if (EQ (encoding, XCAR (tail))) |
41ad6003 | 412 | break; |
2972b14b | 413 | else if (score <= min (INT_MAX, MOST_POSITIVE_FIXNUM) - 0x100) |
d311d28c | 414 | score += 0x100; |
41ad6003 KH |
415 | } |
416 | else | |
417 | { | |
418 | Lisp_Object lang = Ffont_get (font_spec, QClang); | |
419 | ||
420 | if (! NILP (lang) | |
421 | && ! EQ (lang, Vcurrent_iso639_language) | |
422 | && (! CONSP (Vcurrent_iso639_language) | |
423 | || NILP (Fmemq (lang, Vcurrent_iso639_language)))) | |
424 | score |= 0x100; | |
425 | } | |
ea0162a6 | 426 | } |
581f7ac7 | 427 | if (RFONT_DEF_SCORE (rfont_def) != score) |
ea0162a6 | 428 | { |
581f7ac7 KH |
429 | RFONT_DEF_SET_SCORE (rfont_def, score); |
430 | score_changed = 1; | |
ea0162a6 | 431 | } |
6bad8007 | 432 | } |
1d5d7200 | 433 | |
581f7ac7 | 434 | if (score_changed) |
41ad6003 | 435 | qsort (XVECTOR (vec)->contents, size, sizeof (Lisp_Object), |
581f7ac7 | 436 | fontset_compare_rfontdef); |
41ad6003 KH |
437 | XSETCAR (font_group, make_number (charset_ordered_list_tick)); |
438 | } | |
439 | ||
f084f942 KH |
440 | /* Return a font-group (actually a cons (-1 . FONT-GROUP-VECTOR)) for |
441 | character C in FONTSET. If C is -1, return a fallback font-group. | |
442 | If C is not -1, the value may be Qt (FONTSET doesn't have a font | |
ea180610 | 443 | for C even in the fallback group), or 0 (a font for C may be found |
f084f942 KH |
444 | only in the fallback group). */ |
445 | ||
41ad6003 | 446 | static Lisp_Object |
3cba9369 | 447 | fontset_get_font_group (Lisp_Object fontset, int c) |
41ad6003 KH |
448 | { |
449 | Lisp_Object font_group; | |
450 | Lisp_Object base_fontset; | |
5b30be1a | 451 | int from = 0, to = MAX_CHAR, i; |
28e2436a | 452 | |
a54e2c05 | 453 | eassert (! BASE_FONTSET_P (fontset)); |
41ad6003 KH |
454 | if (c >= 0) |
455 | font_group = CHAR_TABLE_REF (fontset, c); | |
456 | else | |
457 | font_group = FONTSET_FALLBACK (fontset); | |
458 | if (! NILP (font_group)) | |
459 | return font_group; | |
460 | base_fontset = FONTSET_BASE (fontset); | |
ea180610 AS |
461 | if (NILP (base_fontset)) |
462 | font_group = Qnil; | |
463 | else if (c >= 0) | |
41ad6003 KH |
464 | font_group = char_table_ref_and_range (base_fontset, c, &from, &to); |
465 | else | |
466 | font_group = FONTSET_FALLBACK (base_fontset); | |
467 | if (NILP (font_group)) | |
f088b054 | 468 | { |
f084f942 | 469 | font_group = make_number (0); |
f088b054 | 470 | if (c >= 0) |
f084f942 KH |
471 | char_table_set_range (fontset, from, to, font_group); |
472 | return font_group; | |
f088b054 | 473 | } |
ea180610 AS |
474 | if (!VECTORP (font_group)) |
475 | return font_group; | |
41ad6003 KH |
476 | font_group = Fcopy_sequence (font_group); |
477 | for (i = 0; i < ASIZE (font_group); i++) | |
478 | if (! NILP (AREF (font_group, i))) | |
479 | { | |
480 | Lisp_Object rfont_def; | |
481 | ||
482 | RFONT_DEF_NEW (rfont_def, AREF (font_group, i)); | |
483 | /* Remember the original order. */ | |
484 | RFONT_DEF_SET_SCORE (rfont_def, i); | |
485 | ASET (font_group, i, rfont_def); | |
486 | } | |
487 | font_group = Fcons (make_number (-1), font_group); | |
488 | if (c >= 0) | |
489 | char_table_set_range (fontset, from, to, font_group); | |
490 | else | |
491 | FONTSET_FALLBACK (fontset) = font_group; | |
492 | return font_group; | |
0d407d77 KH |
493 | } |
494 | ||
7e1a1cd9 | 495 | /* Return RFONT-DEF (vector) in the realized fontset FONTSET for the |
d67f7f1a KH |
496 | character C. If no font is found, return Qnil if there's a |
497 | possibility that the default fontset or the fallback font groups | |
498 | have a proper font, and return Qt if not. | |
499 | ||
500 | If a font is found but is not yet opened, open it (if FACE is not | |
501 | NULL) or return Qnil (if FACE is NULL). | |
502 | ||
1c82b4b3 KH |
503 | ID is a charset-id that must be preferred, or -1 meaning no |
504 | preference. | |
d67f7f1a | 505 | |
ea0162a6 | 506 | If FALLBACK is nonzero, search only fallback fonts. */ |
0d407d77 | 507 | |
7e1a1cd9 | 508 | static Lisp_Object |
971de7fb | 509 | fontset_find_font (Lisp_Object fontset, int c, struct face *face, int id, int fallback) |
0d407d77 | 510 | { |
162f5458 | 511 | Lisp_Object vec, font_group; |
374bf7e4 | 512 | int i, charset_matched = 0, found_index; |
2a1ef5be KH |
513 | FRAME_PTR f = (FRAMEP (FONTSET_FRAME (fontset)) |
514 | ? XFRAME (FONTSET_FRAME (fontset)) : XFRAME (selected_frame)); | |
a71ccf3a | 515 | Lisp_Object rfont_def; |
0d407d77 | 516 | |
41ad6003 KH |
517 | font_group = fontset_get_font_group (fontset, fallback ? -1 : c); |
518 | if (! CONSP (font_group)) | |
bf86d09c | 519 | return font_group; |
41ad6003 KH |
520 | vec = XCDR (font_group); |
521 | if (ASIZE (vec) == 0) | |
522 | return Qnil; | |
eaa0402c | 523 | |
41ad6003 | 524 | if (ASIZE (vec) > 1) |
1d5d7200 | 525 | { |
41ad6003 KH |
526 | if (XINT (XCAR (font_group)) != charset_ordered_list_tick) |
527 | /* We have just created the font-group, | |
528 | or the charset priorities were changed. */ | |
529 | reorder_font_vector (font_group, face->ascii_face->font); | |
530 | if (id >= 0) | |
531 | /* Find a spec matching with the charset ID to try at | |
532 | first. */ | |
533 | for (i = 0; i < ASIZE (vec); i++) | |
534 | { | |
0ff75233 KH |
535 | Lisp_Object repertory; |
536 | ||
a71ccf3a | 537 | rfont_def = AREF (vec, i); |
0ff75233 KH |
538 | if (NILP (rfont_def)) |
539 | break; | |
540 | repertory = FONT_DEF_REPERTORY (RFONT_DEF_FONT_DEF (rfont_def)); | |
41ad6003 KH |
541 | |
542 | if (XINT (repertory) == id) | |
eaa0402c | 543 | { |
41ad6003 | 544 | charset_matched = i; |
581f7ac7 | 545 | break; |
41ad6003 KH |
546 | } |
547 | } | |
581f7ac7 | 548 | } |
1d5d7200 | 549 | |
7e1a1cd9 | 550 | /* Find the first available font in the vector of RFONT-DEF. */ |
41ad6003 | 551 | for (i = 0; i < ASIZE (vec); i++) |
0d407d77 | 552 | { |
a71ccf3a | 553 | Lisp_Object font_def; |
dbf46ba6 | 554 | Lisp_Object font_entity, font_object; |
581f7ac7 | 555 | |
635c75b1 | 556 | found_index = i; |
374bf7e4 | 557 | if (i == 0) |
41ad6003 | 558 | { |
374bf7e4 KH |
559 | if (charset_matched > 0) |
560 | { | |
635c75b1 KH |
561 | /* Try the element matching with the charset ID at first. */ |
562 | found_index = charset_matched; | |
563 | /* Make this negative so that we don't come here in the | |
564 | next loop. */ | |
374bf7e4 | 565 | charset_matched = - charset_matched; |
635c75b1 | 566 | /* We must try the first element in the next loop. */ |
374bf7e4 KH |
567 | i--; |
568 | } | |
41ad6003 | 569 | } |
635c75b1 | 570 | else if (i == - charset_matched) |
374bf7e4 KH |
571 | { |
572 | /* We have already tried this element and the followings | |
635c75b1 KH |
573 | that have the same font specifications in the first |
574 | iteration. So, skip them all. */ | |
374bf7e4 KH |
575 | rfont_def = AREF (vec, i); |
576 | font_def = RFONT_DEF_FONT_DEF (rfont_def); | |
577 | for (; i + 1 < ASIZE (vec); i++) | |
578 | { | |
579 | rfont_def = AREF (vec, i + 1); | |
580 | if (NILP (rfont_def)) | |
581 | break; | |
582 | if (! EQ (RFONT_DEF_FONT_DEF (rfont_def), font_def)) | |
583 | break; | |
584 | } | |
585 | continue; | |
586 | } | |
41ad6003 | 587 | |
374bf7e4 | 588 | rfont_def = AREF (vec, found_index); |
162f5458 | 589 | if (NILP (rfont_def)) |
374bf7e4 | 590 | { |
635c75b1 | 591 | if (i < 0) |
374bf7e4 KH |
592 | continue; |
593 | /* This is a sign of not to try the other fonts. */ | |
594 | return Qt; | |
595 | } | |
162f5458 KH |
596 | if (INTEGERP (RFONT_DEF_FACE (rfont_def)) |
597 | && XINT (RFONT_DEF_FACE (rfont_def)) < 0) | |
1d5d7200 KH |
598 | /* We couldn't open this font last time. */ |
599 | continue; | |
600 | ||
162f5458 | 601 | font_object = RFONT_DEF_OBJECT (rfont_def); |
581f7ac7 | 602 | if (NILP (font_object)) |
8aa07a8d | 603 | { |
162f5458 | 604 | font_def = RFONT_DEF_FONT_DEF (rfont_def); |
d67f7f1a | 605 | |
581f7ac7 KH |
606 | if (! face) |
607 | /* We have not yet opened the font. */ | |
608 | return Qnil; | |
162f5458 KH |
609 | /* Find a font best-matching with the spec without checking |
610 | the support of the character C. That checking is costly, | |
611 | and even without the checking, the found font supports C | |
612 | in high possibility. */ | |
581f7ac7 KH |
613 | font_entity = font_find_for_lface (f, face->lface, |
614 | FONT_DEF_SPEC (font_def), -1); | |
d67f7f1a | 615 | if (NILP (font_entity)) |
8b67c40a | 616 | { |
581f7ac7 | 617 | /* Record that no font matches the spec. */ |
162f5458 | 618 | RFONT_DEF_SET_FACE (rfont_def, -1); |
581f7ac7 | 619 | continue; |
d67f7f1a | 620 | } |
ca2b2cde KH |
621 | font_object = font_open_for_lface (f, font_entity, face->lface, |
622 | FONT_DEF_SPEC (font_def)); | |
581f7ac7 | 623 | if (NILP (font_object)) |
d67f7f1a | 624 | { |
162f5458 KH |
625 | /* Something strange happened, perhaps because of a |
626 | Font-backend problem. Too avoid crashing, record | |
ee7683eb | 627 | that this spec is unusable. It may be better to find |
162f5458 KH |
628 | another font of the same spec, but currently we don't |
629 | have such an API. */ | |
630 | RFONT_DEF_SET_FACE (rfont_def, -1); | |
581f7ac7 | 631 | continue; |
8aa07a8d | 632 | } |
162f5458 | 633 | RFONT_DEF_SET_OBJECT (rfont_def, font_object); |
8aa07a8d | 634 | } |
eb152aa9 | 635 | |
581f7ac7 | 636 | if (font_has_char (f, font_object, c)) |
a71ccf3a | 637 | goto found; |
581f7ac7 | 638 | |
333f9019 | 639 | /* Find a font already opened, matching with the current spec, |
162f5458 KH |
640 | and supporting C. */ |
641 | font_def = RFONT_DEF_FONT_DEF (rfont_def); | |
374bf7e4 | 642 | for (; found_index + 1 < ASIZE (vec); found_index++) |
57e13af9 | 643 | { |
374bf7e4 | 644 | rfont_def = AREF (vec, found_index + 1); |
7d72bb82 | 645 | if (NILP (rfont_def)) |
374bf7e4 | 646 | break; |
162f5458 | 647 | if (! EQ (RFONT_DEF_FONT_DEF (rfont_def), font_def)) |
581f7ac7 | 648 | break; |
374bf7e4 | 649 | font_object = RFONT_DEF_OBJECT (rfont_def); |
69a8e484 | 650 | if (! NILP (font_object) && font_has_char (f, font_object, c)) |
374bf7e4 KH |
651 | { |
652 | found_index++; | |
653 | goto found; | |
654 | } | |
57e13af9 | 655 | } |
162f5458 KH |
656 | |
657 | /* Find a font-entity with the current spec and supporting C. */ | |
581f7ac7 KH |
658 | font_entity = font_find_for_lface (f, face->lface, |
659 | FONT_DEF_SPEC (font_def), c); | |
660 | if (! NILP (font_entity)) | |
1d5d7200 | 661 | { |
162f5458 KH |
662 | /* We found a font. Open it and insert a new element for |
663 | that font in VEC. */ | |
664 | Lisp_Object new_vec; | |
581f7ac7 | 665 | int j; |
1d5d7200 | 666 | |
581f7ac7 KH |
667 | font_object = font_open_for_lface (f, font_entity, face->lface, |
668 | Qnil); | |
162f5458 KH |
669 | if (NILP (font_object)) |
670 | continue; | |
581f7ac7 KH |
671 | RFONT_DEF_NEW (rfont_def, font_def); |
672 | RFONT_DEF_SET_OBJECT (rfont_def, font_object); | |
162f5458 | 673 | RFONT_DEF_SET_SCORE (rfont_def, RFONT_DEF_SCORE (rfont_def)); |
581f7ac7 | 674 | new_vec = Fmake_vector (make_number (ASIZE (vec) + 1), Qnil); |
374bf7e4 KH |
675 | found_index++; |
676 | for (j = 0; j < found_index; j++) | |
581f7ac7 KH |
677 | ASET (new_vec, j, AREF (vec, j)); |
678 | ASET (new_vec, j, rfont_def); | |
679 | for (j++; j < ASIZE (new_vec); j++) | |
680 | ASET (new_vec, j, AREF (vec, j - 1)); | |
162f5458 | 681 | XSETCDR (font_group, new_vec); |
a71ccf3a KH |
682 | vec = new_vec; |
683 | goto found; | |
1d5d7200 | 684 | } |
374bf7e4 KH |
685 | if (i >= 0) |
686 | i = found_index; | |
0d407d77 | 687 | } |
d67f7f1a | 688 | |
581f7ac7 | 689 | FONTSET_SET (fontset, make_number (c), make_number (0)); |
eaa0402c | 690 | return Qnil; |
a71ccf3a KH |
691 | |
692 | found: | |
693 | if (fallback && found_index > 0) | |
694 | { | |
695 | /* The order of fonts in the fallback font-group is not that | |
696 | important, and it is better to move the found font to the | |
697 | first of the group so that the next try will find it | |
698 | quickly. */ | |
699 | for (i = found_index; i > 0; i--) | |
700 | ASET (vec, i, AREF (vec, i - 1)); | |
701 | ASET (vec, 0, rfont_def); | |
702 | } | |
703 | return rfont_def; | |
1c82b4b3 | 704 | } |
0d407d77 | 705 | |
cc7b6145 | 706 | |
1c82b4b3 | 707 | static Lisp_Object |
971de7fb | 708 | fontset_font (Lisp_Object fontset, int c, struct face *face, int id) |
1c82b4b3 | 709 | { |
cc6e5db1 | 710 | Lisp_Object rfont_def, default_rfont_def IF_LINT (= Qnil); |
1c82b4b3 | 711 | Lisp_Object base_fontset; |
cc7b6145 | 712 | |
41ad6003 | 713 | /* Try a font-group of FONTSET. */ |
b23bf85a | 714 | FONT_DEFERRED_LOG ("current fontset: font for", make_number (c), Qnil); |
1c82b4b3 | 715 | rfont_def = fontset_find_font (fontset, c, face, id, 0); |
eaa0402c KH |
716 | if (VECTORP (rfont_def)) |
717 | return rfont_def; | |
f084f942 KH |
718 | if (NILP (rfont_def)) |
719 | FONTSET_SET (fontset, make_number (c), make_number (0)); | |
41ad6003 KH |
720 | |
721 | /* Try a font-group of the default fontset. */ | |
722 | base_fontset = FONTSET_BASE (fontset); | |
723 | if (! EQ (base_fontset, Vdefault_fontset)) | |
724 | { | |
725 | if (NILP (FONTSET_DEFAULT (fontset))) | |
726 | FONTSET_DEFAULT (fontset) | |
727 | = make_fontset (FONTSET_FRAME (fontset), Qnil, Vdefault_fontset); | |
b23bf85a | 728 | FONT_DEFERRED_LOG ("default fontset: font for", make_number (c), Qnil); |
f084f942 KH |
729 | default_rfont_def |
730 | = fontset_find_font (FONTSET_DEFAULT (fontset), c, face, id, 0); | |
731 | if (VECTORP (default_rfont_def)) | |
732 | return default_rfont_def; | |
733 | if (NILP (default_rfont_def)) | |
734 | FONTSET_SET (FONTSET_DEFAULT (fontset), make_number (c), | |
735 | make_number (0)); | |
41ad6003 KH |
736 | } |
737 | ||
738 | /* Try a fallback font-group of FONTSET. */ | |
f084f942 KH |
739 | if (! EQ (rfont_def, Qt)) |
740 | { | |
741 | FONT_DEFERRED_LOG ("current fallback: font for", make_number (c), Qnil); | |
742 | rfont_def = fontset_find_font (fontset, c, face, id, 1); | |
743 | if (VECTORP (rfont_def)) | |
744 | return rfont_def; | |
745 | /* Remember that FONTSET has no font for C. */ | |
746 | FONTSET_SET (fontset, make_number (c), Qt); | |
747 | } | |
d67f7f1a | 748 | |
f084f942 KH |
749 | /* Try a fallback font-group of the default fontset. */ |
750 | if (! EQ (base_fontset, Vdefault_fontset) | |
751 | && ! EQ (default_rfont_def, Qt)) | |
41ad6003 | 752 | { |
b23bf85a | 753 | FONT_DEFERRED_LOG ("default fallback: font for", make_number (c), Qnil); |
41ad6003 KH |
754 | rfont_def = fontset_find_font (FONTSET_DEFAULT (fontset), c, face, id, 1); |
755 | if (VECTORP (rfont_def)) | |
756 | return rfont_def; | |
f084f942 KH |
757 | /* Remember that the default fontset has no font for C. */ |
758 | FONTSET_SET (FONTSET_DEFAULT (fontset), make_number (c), Qt); | |
41ad6003 KH |
759 | } |
760 | ||
41ad6003 | 761 | return Qnil; |
0d407d77 KH |
762 | } |
763 | ||
0d407d77 | 764 | /* Return a newly created fontset with NAME. If BASE is nil, make a |
06f76f0d | 765 | base fontset. Otherwise make a realized fontset whose base is |
0d407d77 KH |
766 | BASE. */ |
767 | ||
768 | static Lisp_Object | |
971de7fb | 769 | make_fontset (Lisp_Object frame, Lisp_Object name, Lisp_Object base) |
4ed46869 | 770 | { |
1337ac77 | 771 | Lisp_Object fontset; |
0d407d77 KH |
772 | int size = ASIZE (Vfontset_table); |
773 | int id = next_fontset_id; | |
0d407d77 KH |
774 | |
775 | /* Find a free slot in Vfontset_table. Usually, next_fontset_id is | |
776 | the next available fontset ID. So it is expected that this loop | |
777 | terminates quickly. In addition, as the last element of | |
fc8865fc | 778 | Vfontset_table is always nil, we don't have to check the range of |
0d407d77 KH |
779 | id. */ |
780 | while (!NILP (AREF (Vfontset_table, id))) id++; | |
781 | ||
782 | if (id + 1 == size) | |
d311d28c | 783 | Vfontset_table = larger_vector (Vfontset_table, 1, -1); |
4ed46869 | 784 | |
11d9bd93 | 785 | fontset = Fmake_char_table (Qfontset, Qnil); |
0d407d77 KH |
786 | |
787 | FONTSET_ID (fontset) = make_number (id); | |
06f76f0d KH |
788 | if (NILP (base)) |
789 | { | |
790 | FONTSET_NAME (fontset) = name; | |
791 | } | |
792 | else | |
793 | { | |
794 | FONTSET_NAME (fontset) = Qnil; | |
795 | FONTSET_FRAME (fontset) = frame; | |
796 | FONTSET_BASE (fontset) = base; | |
797 | } | |
0d407d77 | 798 | |
06f76f0d | 799 | ASET (Vfontset_table, id, fontset); |
0d407d77 KH |
800 | next_fontset_id = id + 1; |
801 | return fontset; | |
4ed46869 KH |
802 | } |
803 | ||
0d407d77 | 804 | \f |
1d5d7200 | 805 | /********** INTERFACES TO xfaces.c, xfns.c, and dispextern.h **********/ |
0d407d77 | 806 | |
1d5d7200 | 807 | /* Return the name of the fontset who has ID. */ |
0d407d77 KH |
808 | |
809 | Lisp_Object | |
971de7fb | 810 | fontset_name (int id) |
0d407d77 KH |
811 | { |
812 | Lisp_Object fontset; | |
06f76f0d | 813 | |
0d407d77 KH |
814 | fontset = FONTSET_FROM_ID (id); |
815 | return FONTSET_NAME (fontset); | |
816 | } | |
817 | ||
818 | ||
1d5d7200 | 819 | /* Return the ASCII font name of the fontset who has ID. */ |
0d407d77 KH |
820 | |
821 | Lisp_Object | |
971de7fb | 822 | fontset_ascii (int id) |
0d407d77 KH |
823 | { |
824 | Lisp_Object fontset, elt; | |
06f76f0d | 825 | |
0d407d77 KH |
826 | fontset= FONTSET_FROM_ID (id); |
827 | elt = FONTSET_ASCII (fontset); | |
8aa07a8d KH |
828 | if (CONSP (elt)) |
829 | elt = XCAR (elt); | |
1d5d7200 | 830 | return elt; |
0d407d77 KH |
831 | } |
832 | ||
a5c0af81 | 833 | static void |
971de7fb | 834 | free_realized_fontset (FRAME_PTR f, Lisp_Object fontset) |
9459b1e9 | 835 | { |
239f9db9 | 836 | #if 0 |
9459b1e9 KH |
837 | Lisp_Object tail; |
838 | ||
97be3ce3 PE |
839 | if (0) |
840 | for (tail = FONTSET_OBJLIST (fontset); CONSP (tail); tail = XCDR (tail)) | |
841 | { | |
a54e2c05 | 842 | eassert (FONT_OBJECT_P (XCAR (tail))); |
97be3ce3 PE |
843 | font_close_object (f, XCAR (tail)); |
844 | } | |
239f9db9 | 845 | #endif |
9459b1e9 | 846 | } |
0d407d77 | 847 | |
06f76f0d KH |
848 | /* Free fontset of FACE defined on frame F. Called from |
849 | free_realized_face. */ | |
0d407d77 | 850 | |
4ed46869 | 851 | void |
971de7fb | 852 | free_face_fontset (FRAME_PTR f, struct face *face) |
4ed46869 | 853 | { |
452a78e0 KH |
854 | Lisp_Object fontset; |
855 | ||
ff7a2223 | 856 | fontset = FONTSET_FROM_ID (face->fontset); |
581f7ac7 KH |
857 | if (NILP (fontset)) |
858 | return; | |
a54e2c05 DA |
859 | eassert (! BASE_FONTSET_P (fontset)); |
860 | eassert (f == XFRAME (FONTSET_FRAME (fontset))); | |
9459b1e9 | 861 | free_realized_fontset (f, fontset); |
1d5d7200 | 862 | ASET (Vfontset_table, face->fontset, Qnil); |
06f76f0d KH |
863 | if (face->fontset < next_fontset_id) |
864 | next_fontset_id = face->fontset; | |
eb36588a | 865 | if (! NILP (FONTSET_DEFAULT (fontset))) |
452a78e0 | 866 | { |
e1a14cdc | 867 | int id = XINT (FONTSET_ID (FONTSET_DEFAULT (fontset))); |
eb152aa9 | 868 | |
452a78e0 | 869 | fontset = AREF (Vfontset_table, id); |
a54e2c05 DA |
870 | eassert (!NILP (fontset) && ! BASE_FONTSET_P (fontset)); |
871 | eassert (f == XFRAME (FONTSET_FRAME (fontset))); | |
9459b1e9 | 872 | free_realized_fontset (f, fontset); |
452a78e0 KH |
873 | ASET (Vfontset_table, id, Qnil); |
874 | if (id < next_fontset_id) | |
875 | next_fontset_id = face->fontset; | |
876 | } | |
581f7ac7 | 877 | face->fontset = -1; |
0d407d77 | 878 | } |
18998710 | 879 | |
0d407d77 | 880 | |
239f9db9 | 881 | #if 0 |
e0f24100 | 882 | /* Return 1 if FACE is suitable for displaying character C. |
0d407d77 | 883 | Otherwise return 0. Called from the macro FACE_SUITABLE_FOR_CHAR_P |
06f76f0d | 884 | when C is not an ASCII character. */ |
0d407d77 KH |
885 | |
886 | int | |
971de7fb | 887 | face_suitable_for_char_p (struct face *face, int c) |
0d407d77 | 888 | { |
7e1a1cd9 | 889 | Lisp_Object fontset, rfont_def; |
0d407d77 | 890 | |
0d407d77 | 891 | fontset = FONTSET_FROM_ID (face->fontset); |
7e1a1cd9 KH |
892 | rfont_def = fontset_font (fontset, c, NULL, -1); |
893 | return (VECTORP (rfont_def) | |
581f7ac7 KH |
894 | && INTEGERP (RFONT_DEF_FACE (rfont_def)) |
895 | && face->id == XINT (RFONT_DEF_FACE (rfont_def))); | |
0d407d77 | 896 | } |
239f9db9 | 897 | #endif |
0d407d77 KH |
898 | |
899 | ||
900 | /* Return ID of face suitable for displaying character C on frame F. | |
40ba43b4 | 901 | FACE must be realized for ASCII characters in advance. Called from |
1d5d7200 | 902 | the macro FACE_FOR_CHAR. */ |
0d407d77 KH |
903 | |
904 | int | |
971de7fb | 905 | face_for_char (FRAME_PTR f, struct face *face, int c, int pos, Lisp_Object object) |
0d407d77 | 906 | { |
303d5190 | 907 | Lisp_Object fontset, rfont_def, charset; |
7e1a1cd9 | 908 | int face_id; |
6bad8007 | 909 | int id; |
1d5d7200 | 910 | |
ea217c11 KH |
911 | /* If face->fontset is negative (that happens when no font is found |
912 | for face), just return face->ascii_face because we can't do | |
913 | anything. Perhaps, we should fix the callers to assure | |
914 | that face->fontset is always valid. */ | |
915 | if (ASCII_CHAR_P (c) || face->fontset < 0) | |
1d5d7200 | 916 | return face->ascii_face->id; |
0d407d77 | 917 | |
a54e2c05 | 918 | eassert (fontset_id_valid_p (face->fontset)); |
0d407d77 | 919 | fontset = FONTSET_FROM_ID (face->fontset); |
a54e2c05 | 920 | eassert (!BASE_FONTSET_P (fontset)); |
41ad6003 | 921 | |
6bad8007 | 922 | if (pos < 0) |
303d5190 KH |
923 | { |
924 | id = -1; | |
925 | charset = Qnil; | |
926 | } | |
6bad8007 KH |
927 | else |
928 | { | |
929 | charset = Fget_char_property (make_number (pos), Qcharset, object); | |
b1bde622 | 930 | if (CHARSETP (charset)) |
28e2436a KH |
931 | { |
932 | Lisp_Object val; | |
933 | ||
a124bbb6 | 934 | val = assq_no_quit (charset, Vfont_encoding_charset_alist); |
28e2436a KH |
935 | if (CONSP (val) && CHARSETP (XCDR (val))) |
936 | charset = XCDR (val); | |
937 | id = XINT (CHARSET_SYMBOL_ID (charset)); | |
938 | } | |
b1bde622 KH |
939 | else |
940 | id = -1; | |
6bad8007 | 941 | } |
b59e66b3 | 942 | |
7e1a1cd9 KH |
943 | rfont_def = fontset_font (fontset, c, face, id); |
944 | if (VECTORP (rfont_def)) | |
945 | { | |
581f7ac7 KH |
946 | if (INTEGERP (RFONT_DEF_FACE (rfont_def))) |
947 | face_id = XINT (RFONT_DEF_FACE (rfont_def)); | |
8aa07a8d | 948 | else |
7e1a1cd9 | 949 | { |
581f7ac7 | 950 | Lisp_Object font_object; |
7e1a1cd9 | 951 | |
581f7ac7 KH |
952 | font_object = RFONT_DEF_OBJECT (rfont_def); |
953 | face_id = face_for_font (f, font_object, face); | |
954 | RFONT_DEF_SET_FACE (rfont_def, face_id); | |
7e1a1cd9 | 955 | } |
7e1a1cd9 | 956 | } |
581f7ac7 | 957 | else |
7e1a1cd9 | 958 | { |
581f7ac7 KH |
959 | if (INTEGERP (FONTSET_NOFONT_FACE (fontset))) |
960 | face_id = XINT (FONTSET_NOFONT_FACE (fontset)); | |
961 | else | |
962 | { | |
963 | face_id = face_for_font (f, Qnil, face); | |
964 | FONTSET_NOFONT_FACE (fontset) = make_number (face_id); | |
965 | } | |
7e1a1cd9 | 966 | } |
a54e2c05 | 967 | eassert (face_id >= 0); |
581f7ac7 | 968 | return face_id; |
0d407d77 KH |
969 | } |
970 | ||
971 | ||
514cf218 | 972 | Lisp_Object |
971de7fb | 973 | font_for_char (struct face *face, int c, int pos, Lisp_Object object) |
514cf218 KH |
974 | { |
975 | Lisp_Object fontset, rfont_def, charset; | |
514cf218 KH |
976 | int id; |
977 | ||
978 | if (ASCII_CHAR_P (c)) | |
979 | { | |
980 | Lisp_Object font_object; | |
981 | ||
982 | XSETFONT (font_object, face->ascii_face->font); | |
983 | return font_object; | |
984 | } | |
985 | ||
a54e2c05 | 986 | eassert (fontset_id_valid_p (face->fontset)); |
514cf218 | 987 | fontset = FONTSET_FROM_ID (face->fontset); |
a54e2c05 | 988 | eassert (!BASE_FONTSET_P (fontset)); |
514cf218 KH |
989 | if (pos < 0) |
990 | { | |
991 | id = -1; | |
992 | charset = Qnil; | |
993 | } | |
994 | else | |
995 | { | |
996 | charset = Fget_char_property (make_number (pos), Qcharset, object); | |
b1bde622 | 997 | if (CHARSETP (charset)) |
514cf218 KH |
998 | { |
999 | Lisp_Object val; | |
1000 | ||
9fe78804 | 1001 | val = assq_no_quit (charset, Vfont_encoding_charset_alist); |
514cf218 KH |
1002 | if (CONSP (val) && CHARSETP (XCDR (val))) |
1003 | charset = XCDR (val); | |
1004 | id = XINT (CHARSET_SYMBOL_ID (charset)); | |
1005 | } | |
b1bde622 KH |
1006 | else |
1007 | id = -1; | |
514cf218 KH |
1008 | } |
1009 | ||
514cf218 KH |
1010 | rfont_def = fontset_font (fontset, c, face, id); |
1011 | return (VECTORP (rfont_def) | |
1012 | ? RFONT_DEF_OBJECT (rfont_def) | |
1013 | : Qnil); | |
1014 | } | |
1015 | ||
1016 | ||
0d407d77 KH |
1017 | /* Make a realized fontset for ASCII face FACE on frame F from the |
1018 | base fontset BASE_FONTSET_ID. If BASE_FONTSET_ID is -1, use the | |
1019 | default fontset as the base. Value is the id of the new fontset. | |
1020 | Called from realize_x_face. */ | |
1021 | ||
1022 | int | |
971de7fb | 1023 | make_fontset_for_ascii_face (FRAME_PTR f, int base_fontset_id, struct face *face) |
0d407d77 | 1024 | { |
1337ac77 | 1025 | Lisp_Object base_fontset, fontset, frame; |
0d407d77 KH |
1026 | |
1027 | XSETFRAME (frame, f); | |
1028 | if (base_fontset_id >= 0) | |
1029 | { | |
1030 | base_fontset = FONTSET_FROM_ID (base_fontset_id); | |
1031 | if (!BASE_FONTSET_P (base_fontset)) | |
1032 | base_fontset = FONTSET_BASE (base_fontset); | |
1d5d7200 KH |
1033 | if (! BASE_FONTSET_P (base_fontset)) |
1034 | abort (); | |
4ed46869 | 1035 | } |
0d407d77 KH |
1036 | else |
1037 | base_fontset = Vdefault_fontset; | |
1038 | ||
1039 | fontset = make_fontset (frame, Qnil, base_fontset); | |
f3231837 | 1040 | return XINT (FONTSET_ID (fontset)); |
0d407d77 KH |
1041 | } |
1042 | ||
0d407d77 | 1043 | \f |
1d5d7200 | 1044 | |
4ed46869 KH |
1045 | /* Cache data used by fontset_pattern_regexp. The car part is a |
1046 | pattern string containing at least one wild card, the cdr part is | |
1047 | the corresponding regular expression. */ | |
1048 | static Lisp_Object Vcached_fontset_data; | |
1049 | ||
51b59d79 | 1050 | #define CACHED_FONTSET_NAME SSDATA (XCAR (Vcached_fontset_data)) |
7539e11f | 1051 | #define CACHED_FONTSET_REGEX (XCDR (Vcached_fontset_data)) |
4ed46869 KH |
1052 | |
1053 | /* If fontset name PATTERN contains any wild card, return regular | |
1054 | expression corresponding to PATTERN. */ | |
1055 | ||
0d407d77 | 1056 | static Lisp_Object |
971de7fb | 1057 | fontset_pattern_regexp (Lisp_Object pattern) |
4ed46869 | 1058 | { |
51b59d79 PE |
1059 | if (!strchr (SSDATA (pattern), '*') |
1060 | && !strchr (SSDATA (pattern), '?')) | |
4ed46869 | 1061 | /* PATTERN does not contain any wild cards. */ |
1c283e35 | 1062 | return Qnil; |
4ed46869 KH |
1063 | |
1064 | if (!CONSP (Vcached_fontset_data) | |
51b59d79 | 1065 | || strcmp (SSDATA (pattern), CACHED_FONTSET_NAME)) |
4ed46869 KH |
1066 | { |
1067 | /* We must at first update the cached data. */ | |
6cc06608 | 1068 | unsigned char *regex, *p0, *p1; |
821bc4db | 1069 | int ndashes = 0, nstars = 0, nescs = 0; |
6cc06608 | 1070 | |
fc1062f5 KH |
1071 | for (p0 = SDATA (pattern); *p0; p0++) |
1072 | { | |
1073 | if (*p0 == '-') | |
1074 | ndashes++; | |
a653f812 | 1075 | else if (*p0 == '*') |
fc1062f5 | 1076 | nstars++; |
821bc4db KH |
1077 | else if (*p0 == '[' |
1078 | || *p0 == '.' || *p0 == '\\' | |
8510724d | 1079 | || *p0 == '+' || *p0 == '^' |
821bc4db KH |
1080 | || *p0 == '$') |
1081 | nescs++; | |
fc1062f5 KH |
1082 | } |
1083 | ||
da6062e6 | 1084 | /* If PATTERN is not full XLFD we convert "*" to ".*". Otherwise |
fc1062f5 KH |
1085 | we convert "*" to "[^-]*" which is much faster in regular |
1086 | expression matching. */ | |
1087 | if (ndashes < 14) | |
821bc4db | 1088 | p1 = regex = (unsigned char *) alloca (SBYTES (pattern) + 2 * nstars + 2 * nescs + 1); |
fc1062f5 | 1089 | else |
821bc4db | 1090 | p1 = regex = (unsigned char *) alloca (SBYTES (pattern) + 5 * nstars + 2 * nescs + 1); |
4ed46869 | 1091 | |
1c283e35 | 1092 | *p1++ = '^'; |
6cc06608 | 1093 | for (p0 = SDATA (pattern); *p0; p0++) |
4ed46869 | 1094 | { |
a653f812 | 1095 | if (*p0 == '*') |
4ed46869 | 1096 | { |
fc1062f5 KH |
1097 | if (ndashes < 14) |
1098 | *p1++ = '.'; | |
1099 | else | |
1100 | *p1++ = '[', *p1++ = '^', *p1++ = '-', *p1++ = ']'; | |
1c283e35 | 1101 | *p1++ = '*'; |
4ed46869 | 1102 | } |
1c283e35 | 1103 | else if (*p0 == '?') |
d96d677d | 1104 | *p1++ = '.'; |
821bc4db KH |
1105 | else if (*p0 == '[' |
1106 | || *p0 == '.' || *p0 == '\\' | |
8510724d | 1107 | || *p0 == '+' || *p0 == '^' |
821bc4db KH |
1108 | || *p0 == '$') |
1109 | *p1++ = '\\', *p1++ = *p0; | |
1c283e35 KH |
1110 | else |
1111 | *p1++ = *p0; | |
4ed46869 KH |
1112 | } |
1113 | *p1++ = '$'; | |
1114 | *p1++ = 0; | |
1115 | ||
51b59d79 | 1116 | Vcached_fontset_data = Fcons (build_string (SSDATA (pattern)), |
dbf46ba6 | 1117 | build_string ((char *) regex)); |
4ed46869 KH |
1118 | } |
1119 | ||
1120 | return CACHED_FONTSET_REGEX; | |
1121 | } | |
1122 | ||
0d407d77 | 1123 | /* Return ID of the base fontset named NAME. If there's no such |
a653f812 KH |
1124 | fontset, return -1. NAME_PATTERN specifies how to treat NAME as this: |
1125 | 0: pattern containing '*' and '?' as wildcards | |
1126 | 1: regular expression | |
1127 | 2: literal fontset name | |
1128 | */ | |
0d407d77 KH |
1129 | |
1130 | int | |
971de7fb | 1131 | fs_query_fontset (Lisp_Object name, int name_pattern) |
0d407d77 | 1132 | { |
1337ac77 | 1133 | Lisp_Object tem; |
0d407d77 KH |
1134 | int i; |
1135 | ||
1136 | name = Fdowncase (name); | |
a653f812 | 1137 | if (name_pattern != 1) |
0d407d77 KH |
1138 | { |
1139 | tem = Frassoc (name, Vfontset_alias_alist); | |
6bad8007 KH |
1140 | if (NILP (tem)) |
1141 | tem = Fassoc (name, Vfontset_alias_alist); | |
0d407d77 KH |
1142 | if (CONSP (tem) && STRINGP (XCAR (tem))) |
1143 | name = XCAR (tem); | |
a653f812 | 1144 | else if (name_pattern == 0) |
0d407d77 KH |
1145 | { |
1146 | tem = fontset_pattern_regexp (name); | |
1147 | if (STRINGP (tem)) | |
1148 | { | |
1149 | name = tem; | |
a653f812 | 1150 | name_pattern = 1; |
0d407d77 KH |
1151 | } |
1152 | } | |
1153 | } | |
1154 | ||
1155 | for (i = 0; i < ASIZE (Vfontset_table); i++) | |
1156 | { | |
6e1b0d8c | 1157 | Lisp_Object fontset, this_name; |
0d407d77 KH |
1158 | |
1159 | fontset = FONTSET_FROM_ID (i); | |
1160 | if (NILP (fontset) | |
1161 | || !BASE_FONTSET_P (fontset)) | |
1162 | continue; | |
1163 | ||
6e1b0d8c | 1164 | this_name = FONTSET_NAME (fontset); |
a653f812 | 1165 | if (name_pattern == 1 |
581f7ac7 | 1166 | ? fast_string_match_ignore_case (name, this_name) >= 0 |
25a48bd0 | 1167 | : !xstrcasecmp (SSDATA (name), SSDATA (this_name))) |
0d407d77 KH |
1168 | return i; |
1169 | } | |
1170 | return -1; | |
1171 | } | |
1172 | ||
1173 | ||
a7ca3326 | 1174 | DEFUN ("query-fontset", Fquery_fontset, Squery_fontset, 1, 2, 0, |
335c5470 PJ |
1175 | doc: /* Return the name of a fontset that matches PATTERN. |
1176 | The value is nil if there is no matching fontset. | |
1177 | PATTERN can contain `*' or `?' as a wildcard | |
1178 | just as X font name matching algorithm allows. | |
1179 | If REGEXPP is non-nil, PATTERN is a regular expression. */) | |
5842a27b | 1180 | (Lisp_Object pattern, Lisp_Object regexpp) |
4ed46869 | 1181 | { |
0d407d77 KH |
1182 | Lisp_Object fontset; |
1183 | int id; | |
4ed46869 KH |
1184 | |
1185 | (*check_window_system_func) (); | |
1186 | ||
b7826503 | 1187 | CHECK_STRING (pattern); |
4ed46869 | 1188 | |
d5db4077 | 1189 | if (SCHARS (pattern) == 0) |
4ed46869 KH |
1190 | return Qnil; |
1191 | ||
0d407d77 KH |
1192 | id = fs_query_fontset (pattern, !NILP (regexpp)); |
1193 | if (id < 0) | |
1194 | return Qnil; | |
4ed46869 | 1195 | |
0d407d77 KH |
1196 | fontset = FONTSET_FROM_ID (id); |
1197 | return FONTSET_NAME (fontset); | |
4ed46869 KH |
1198 | } |
1199 | ||
06f76f0d | 1200 | /* Return a list of base fontset names matching PATTERN on frame F. */ |
4ed46869 KH |
1201 | |
1202 | Lisp_Object | |
971de7fb | 1203 | list_fontsets (FRAME_PTR f, Lisp_Object pattern, int size) |
4ed46869 | 1204 | { |
1337ac77 | 1205 | Lisp_Object frame, regexp, val; |
0d407d77 | 1206 | int id; |
4ed46869 | 1207 | |
0d407d77 | 1208 | XSETFRAME (frame, f); |
4ed46869 | 1209 | |
0d407d77 | 1210 | regexp = fontset_pattern_regexp (pattern); |
4ed46869 | 1211 | val = Qnil; |
4ed46869 | 1212 | |
0d407d77 KH |
1213 | for (id = 0; id < ASIZE (Vfontset_table); id++) |
1214 | { | |
6e1b0d8c | 1215 | Lisp_Object fontset, name; |
0d407d77 KH |
1216 | |
1217 | fontset = FONTSET_FROM_ID (id); | |
1218 | if (NILP (fontset) | |
1219 | || !BASE_FONTSET_P (fontset) | |
1220 | || !EQ (frame, FONTSET_FRAME (fontset))) | |
1221 | continue; | |
6e1b0d8c | 1222 | name = FONTSET_NAME (fontset); |
0d407d77 | 1223 | |
1d5d7200 | 1224 | if (STRINGP (regexp) |
6e1b0d8c | 1225 | ? (fast_string_match (regexp, name) < 0) |
51b59d79 | 1226 | : strcmp (SSDATA (pattern), SSDATA (name))) |
0d407d77 KH |
1227 | continue; |
1228 | ||
0d407d77 | 1229 | val = Fcons (Fcopy_sequence (FONTSET_NAME (fontset)), val); |
4ed46869 KH |
1230 | } |
1231 | ||
1232 | return val; | |
1233 | } | |
1234 | ||
4ed46869 | 1235 | |
8f924df7 | 1236 | /* Free all realized fontsets whose base fontset is BASE. */ |
4ed46869 | 1237 | |
06f76f0d | 1238 | static void |
971de7fb | 1239 | free_realized_fontsets (Lisp_Object base) |
06f76f0d KH |
1240 | { |
1241 | int id; | |
4ed46869 | 1242 | |
2f034212 | 1243 | #if 0 |
27e20b2f KH |
1244 | /* For the moment, this doesn't work because free_realized_face |
1245 | doesn't remove FACE from a cache. Until we find a solution, we | |
1246 | suppress this code, and simply use Fclear_face_cache even though | |
1247 | that is not efficient. */ | |
06f76f0d KH |
1248 | BLOCK_INPUT; |
1249 | for (id = 0; id < ASIZE (Vfontset_table); id++) | |
4ed46869 | 1250 | { |
06f76f0d | 1251 | Lisp_Object this = AREF (Vfontset_table, id); |
0d407d77 | 1252 | |
06f76f0d | 1253 | if (EQ (FONTSET_BASE (this), base)) |
0d407d77 | 1254 | { |
06f76f0d | 1255 | Lisp_Object tail; |
4ed46869 | 1256 | |
06f76f0d KH |
1257 | for (tail = FONTSET_FACE_ALIST (this); CONSP (tail); |
1258 | tail = XCDR (tail)) | |
1259 | { | |
1260 | FRAME_PTR f = XFRAME (FONTSET_FRAME (this)); | |
1261 | int face_id = XINT (XCDR (XCAR (tail))); | |
1262 | struct face *face = FACE_FROM_ID (f, face_id); | |
4ed46869 | 1263 | |
06f76f0d KH |
1264 | /* Face THIS itself is also freed by the following call. */ |
1265 | free_realized_face (f, face); | |
1266 | } | |
1267 | } | |
0d407d77 | 1268 | } |
06f76f0d | 1269 | UNBLOCK_INPUT; |
27e20b2f | 1270 | #else /* not 0 */ |
2f034212 KH |
1271 | /* But, we don't have to call Fclear_face_cache if no fontset has |
1272 | been realized from BASE. */ | |
1273 | for (id = 0; id < ASIZE (Vfontset_table); id++) | |
1274 | { | |
1275 | Lisp_Object this = AREF (Vfontset_table, id); | |
1276 | ||
985773c9 | 1277 | if (CHAR_TABLE_P (this) && EQ (FONTSET_BASE (this), base)) |
2f034212 KH |
1278 | { |
1279 | Fclear_face_cache (Qt); | |
1280 | break; | |
1281 | } | |
1282 | } | |
27e20b2f | 1283 | #endif /* not 0 */ |
0d407d77 | 1284 | } |
4ed46869 | 1285 | |
4ed46869 | 1286 | |
0d407d77 KH |
1287 | /* Check validity of NAME as a fontset name and return the |
1288 | corresponding fontset. If not valid, signal an error. | |
a3d16f39 KH |
1289 | |
1290 | If NAME is t, return Vdefault_fontset. If NAME is nil, return the | |
1291 | fontset of *FRAME. | |
1292 | ||
1293 | Set *FRAME to the actual frame. */ | |
0d407d77 KH |
1294 | |
1295 | static Lisp_Object | |
971de7fb | 1296 | check_fontset_name (Lisp_Object name, Lisp_Object *frame) |
0d407d77 KH |
1297 | { |
1298 | int id; | |
1299 | ||
a3d16f39 KH |
1300 | if (NILP (*frame)) |
1301 | *frame = selected_frame; | |
1302 | CHECK_LIVE_FRAME (*frame); | |
1303 | ||
0d407d77 KH |
1304 | if (EQ (name, Qt)) |
1305 | return Vdefault_fontset; | |
a3d16f39 KH |
1306 | if (NILP (name)) |
1307 | { | |
1308 | id = FRAME_FONTSET (XFRAME (*frame)); | |
1309 | } | |
1310 | else | |
1311 | { | |
1312 | CHECK_STRING (name); | |
1313 | /* First try NAME as literal. */ | |
1314 | id = fs_query_fontset (name, 2); | |
1315 | if (id < 0) | |
1316 | /* For backward compatibility, try again NAME as pattern. */ | |
1317 | id = fs_query_fontset (name, 0); | |
1318 | if (id < 0) | |
1319 | error ("Fontset `%s' does not exist", SDATA (name)); | |
1320 | } | |
0d407d77 KH |
1321 | return FONTSET_FROM_ID (id); |
1322 | } | |
4ed46869 | 1323 | |
1d5d7200 | 1324 | static void |
971de7fb | 1325 | accumulate_script_ranges (Lisp_Object arg, Lisp_Object range, Lisp_Object val) |
1d5d7200 KH |
1326 | { |
1327 | if (EQ (XCAR (arg), val)) | |
1328 | { | |
1329 | if (CONSP (range)) | |
1330 | XSETCDR (arg, Fcons (Fcons (XCAR (range), XCDR (range)), XCDR (arg))); | |
1331 | else | |
1332 | XSETCDR (arg, Fcons (Fcons (range, range), XCDR (arg))); | |
1333 | } | |
1334 | } | |
1335 | ||
1336 | ||
a3d16f39 KH |
1337 | /* Callback function for map_charset_chars in Fset_fontset_font. |
1338 | ARG is a vector [ FONTSET FONT_DEF ADD ASCII SCRIPT_RANGE_LIST ]. | |
fb78e2ed | 1339 | |
a3d16f39 KH |
1340 | In FONTSET, set FONT_DEF in a fashion specified by ADD for |
1341 | characters in RANGE and ranges in SCRIPT_RANGE_LIST before RANGE. | |
e1dbe924 | 1342 | The consumed ranges are popped up from SCRIPT_RANGE_LIST, and the |
a3d16f39 KH |
1343 | new SCRIPT_RANGE_LIST is stored in ARG. |
1344 | ||
1345 | If ASCII is nil, don't set FONT_DEF for ASCII characters. It is | |
1346 | assured that SCRIPT_RANGE_LIST doesn't contain ASCII in that | |
1347 | case. */ | |
fb78e2ed | 1348 | |
2449d4d0 | 1349 | static void |
971de7fb | 1350 | set_fontset_font (Lisp_Object arg, Lisp_Object range) |
2449d4d0 | 1351 | { |
a3d16f39 KH |
1352 | Lisp_Object fontset, font_def, add, ascii, script_range_list; |
1353 | int from = XINT (XCAR (range)), to = XINT (XCDR (range)); | |
2449d4d0 | 1354 | |
a3d16f39 KH |
1355 | fontset = AREF (arg, 0); |
1356 | font_def = AREF (arg, 1); | |
1357 | add = AREF (arg, 2); | |
1358 | ascii = AREF (arg, 3); | |
1359 | script_range_list = AREF (arg, 4); | |
fb78e2ed | 1360 | |
a3d16f39 KH |
1361 | if (NILP (ascii) && from < 0x80) |
1362 | { | |
1363 | if (to < 0x80) | |
fb78e2ed | 1364 | return; |
a3d16f39 KH |
1365 | from = 0x80; |
1366 | range = Fcons (make_number (0x80), XCDR (range)); | |
1367 | } | |
1368 | ||
1369 | #define SCRIPT_FROM XINT (XCAR (XCAR (script_range_list))) | |
1370 | #define SCRIPT_TO XINT (XCDR (XCAR (script_range_list))) | |
1371 | #define POP_SCRIPT_RANGE() script_range_list = XCDR (script_range_list) | |
1372 | ||
1373 | for (; CONSP (script_range_list) && SCRIPT_TO < from; POP_SCRIPT_RANGE ()) | |
1374 | FONTSET_ADD (fontset, XCAR (script_range_list), font_def, add); | |
1375 | if (CONSP (script_range_list)) | |
1376 | { | |
1377 | if (SCRIPT_FROM < from) | |
1378 | range = Fcons (make_number (SCRIPT_FROM), XCDR (range)); | |
1379 | while (CONSP (script_range_list) && SCRIPT_TO <= to) | |
1380 | POP_SCRIPT_RANGE (); | |
1381 | if (CONSP (script_range_list) && SCRIPT_FROM <= to) | |
1382 | XSETCAR (XCAR (script_range_list), make_number (to + 1)); | |
fb78e2ed | 1383 | } |
a3d16f39 KH |
1384 | |
1385 | FONTSET_ADD (fontset, range, font_def, add); | |
1386 | ASET (arg, 4, script_range_list); | |
2449d4d0 KH |
1387 | } |
1388 | ||
f57e2426 | 1389 | static void update_auto_fontset_alist (Lisp_Object, Lisp_Object); |
d6490542 | 1390 | |
d6aaac9e | 1391 | |
1d5d7200 | 1392 | DEFUN ("set-fontset-font", Fset_fontset_font, Sset_fontset_font, 3, 5, 0, |
8f924df7 | 1393 | doc: /* |
eb36588a | 1394 | Modify fontset NAME to use FONT-SPEC for TARGET characters. |
335c5470 | 1395 | |
a3d16f39 KH |
1396 | NAME is a fontset name string, nil for the fontset of FRAME, or t for |
1397 | the default fontset. | |
1398 | ||
eb36588a KH |
1399 | TARGET may be a cons; (FROM . TO), where FROM and TO are characters. |
1400 | In that case, use FONT-SPEC for all characters in the range FROM and | |
1401 | TO (inclusive). | |
06f76f0d | 1402 | |
eb36588a KH |
1403 | TARGET may be a script name symbol. In that case, use FONT-SPEC for |
1404 | all characters that belong to the script. | |
06f76f0d | 1405 | |
eb36588a | 1406 | TARGET may be a charset. In that case, use FONT-SPEC for all |
95318a38 | 1407 | characters in the charset. |
1d5d7200 | 1408 | |
eb36588a KH |
1409 | TARGET may be nil. In that case, use FONT-SPEC for any characters for |
1410 | that no FONT-SPEC is specified. | |
1411 | ||
0fdf26e6 | 1412 | FONT-SPEC may one of these: |
581f7ac7 | 1413 | * A font-spec object made by the function `font-spec' (which see). |
3dcd48dd | 1414 | * A cons (FAMILY . REGISTRY), where FAMILY is a font family name and |
581f7ac7 KH |
1415 | REGISTRY is a font registry name. FAMILY may contain foundry |
1416 | name, and REGISTRY may contain encoding name. | |
00c4da0f | 1417 | * A font name string. |
eaa0402c | 1418 | * nil, which explicitly specifies that there's no font for TARGET. |
1d5d7200 | 1419 | |
a3d16f39 KH |
1420 | Optional 4th argument FRAME is a frame or nil for the selected frame |
1421 | that is concerned in the case that NAME is nil. | |
1d5d7200 KH |
1422 | |
1423 | Optional 5th argument ADD, if non-nil, specifies how to add FONT-SPEC | |
eb36588a | 1424 | to the font specifications for TARGET previously set. If it is |
1d5d7200 KH |
1425 | `prepend', FONT-SPEC is prepended. If it is `append', FONT-SPEC is |
1426 | appended. By default, FONT-SPEC overrides the previous settings. */) | |
5842a27b | 1427 | (Lisp_Object name, Lisp_Object target, Lisp_Object font_spec, Lisp_Object frame, Lisp_Object add) |
0d407d77 | 1428 | { |
06f76f0d | 1429 | Lisp_Object fontset; |
9683749a | 1430 | Lisp_Object font_def, registry, family; |
1d5d7200 | 1431 | Lisp_Object range_list; |
fb78e2ed | 1432 | struct charset *charset = NULL; |
d6490542 KH |
1433 | Lisp_Object fontname; |
1434 | int ascii_changed = 0; | |
0d407d77 | 1435 | |
a3d16f39 | 1436 | fontset = check_fontset_name (name, &frame); |
1d5d7200 | 1437 | |
d6490542 | 1438 | fontname = Qnil; |
581f7ac7 | 1439 | if (CONSP (font_spec)) |
0d407d77 | 1440 | { |
581f7ac7 | 1441 | Lisp_Object spec = Ffont_spec (0, NULL); |
1d5d7200 | 1442 | |
581f7ac7 KH |
1443 | font_parse_family_registry (XCAR (font_spec), XCDR (font_spec), spec); |
1444 | font_spec = spec; | |
d6490542 | 1445 | fontname = Ffont_xlfd_name (font_spec, Qnil); |
0890801b | 1446 | } |
d67f7f1a | 1447 | else if (STRINGP (font_spec)) |
4ed46869 | 1448 | { |
ea0162a6 KH |
1449 | Lisp_Object args[2]; |
1450 | ||
d6490542 | 1451 | fontname = font_spec; |
ea0162a6 KH |
1452 | args[0] = QCname; |
1453 | args[1] = font_spec; | |
1454 | font_spec = Ffont_spec (2, args); | |
0d407d77 | 1455 | } |
d6490542 KH |
1456 | else if (FONT_SPEC_P (font_spec)) |
1457 | fontname = Ffont_xlfd_name (font_spec, Qnil); | |
1458 | else if (! NILP (font_spec)) | |
581f7ac7 | 1459 | Fsignal (Qfont, list2 (build_string ("Invalid font-spec"), font_spec)); |
1d5d7200 | 1460 | |
d67f7f1a | 1461 | if (! NILP (font_spec)) |
57e13af9 | 1462 | { |
581f7ac7 KH |
1463 | Lisp_Object encoding, repertory; |
1464 | ||
d67f7f1a | 1465 | family = AREF (font_spec, FONT_FAMILY_INDEX); |
581f7ac7 | 1466 | if (! NILP (family) ) |
d67f7f1a KH |
1467 | family = SYMBOL_NAME (family); |
1468 | registry = AREF (font_spec, FONT_REGISTRY_INDEX); | |
581f7ac7 KH |
1469 | if (! NILP (registry)) |
1470 | registry = Fdowncase (SYMBOL_NAME (registry)); | |
1471 | encoding = find_font_encoding (concat3 (family, build_string ("-"), | |
1472 | registry)); | |
d67f7f1a KH |
1473 | if (NILP (encoding)) |
1474 | encoding = Qascii; | |
1475 | ||
1476 | if (SYMBOLP (encoding)) | |
1477 | { | |
1478 | CHECK_CHARSET (encoding); | |
1479 | encoding = repertory = CHARSET_SYMBOL_ID (encoding); | |
1480 | } | |
1481 | else | |
57e13af9 | 1482 | { |
d67f7f1a KH |
1483 | repertory = XCDR (encoding); |
1484 | encoding = XCAR (encoding); | |
1485 | CHECK_CHARSET (encoding); | |
1486 | encoding = CHARSET_SYMBOL_ID (encoding); | |
1487 | if (! NILP (repertory) && SYMBOLP (repertory)) | |
1488 | { | |
1489 | CHECK_CHARSET (repertory); | |
1490 | repertory = CHARSET_SYMBOL_ID (repertory); | |
1491 | } | |
57e13af9 | 1492 | } |
581f7ac7 | 1493 | FONT_DEF_NEW (font_def, font_spec, encoding, repertory); |
0d407d77 | 1494 | } |
d67f7f1a KH |
1495 | else |
1496 | font_def = Qnil; | |
4ed46869 | 1497 | |
eb36588a | 1498 | if (CHARACTERP (target)) |
d6490542 KH |
1499 | { |
1500 | if (XFASTINT (target) < 0x80) | |
d7a39b51 | 1501 | error ("Can't set a font for partial ASCII range"); |
d6490542 KH |
1502 | range_list = Fcons (Fcons (target, target), Qnil); |
1503 | } | |
eb36588a | 1504 | else if (CONSP (target)) |
0d407d77 | 1505 | { |
06f76f0d KH |
1506 | Lisp_Object from, to; |
1507 | ||
eb36588a KH |
1508 | from = Fcar (target); |
1509 | to = Fcdr (target); | |
06f76f0d KH |
1510 | CHECK_CHARACTER (from); |
1511 | CHECK_CHARACTER (to); | |
d6490542 KH |
1512 | if (XFASTINT (from) < 0x80) |
1513 | { | |
1514 | if (XFASTINT (from) != 0 || XFASTINT (to) < 0x7F) | |
d7a39b51 | 1515 | error ("Can't set a font for partial ASCII range"); |
d6490542 KH |
1516 | ascii_changed = 1; |
1517 | } | |
eb36588a | 1518 | range_list = Fcons (target, Qnil); |
4ed46869 | 1519 | } |
eb36588a | 1520 | else if (SYMBOLP (target) && !NILP (target)) |
8a9be3ac | 1521 | { |
1d5d7200 KH |
1522 | Lisp_Object script_list; |
1523 | Lisp_Object val; | |
0d407d77 | 1524 | |
1d5d7200 KH |
1525 | range_list = Qnil; |
1526 | script_list = XCHAR_TABLE (Vchar_script_table)->extras[0]; | |
eb36588a | 1527 | if (! NILP (Fmemq (target, script_list))) |
afe93d01 | 1528 | { |
d6490542 KH |
1529 | if (EQ (target, Qlatin)) |
1530 | ascii_changed = 1; | |
eb36588a | 1531 | val = Fcons (target, Qnil); |
1d5d7200 | 1532 | map_char_table (accumulate_script_ranges, Qnil, Vchar_script_table, |
8f924df7 | 1533 | val); |
a3d16f39 | 1534 | range_list = Fnreverse (XCDR (val)); |
afe93d01 | 1535 | } |
fb78e2ed | 1536 | if (CHARSETP (target)) |
afe93d01 | 1537 | { |
d6490542 KH |
1538 | CHECK_CHARSET_GET_CHARSET (target, charset); |
1539 | if (charset->ascii_compatible_p) | |
1540 | ascii_changed = 1; | |
afe93d01 | 1541 | } |
fb78e2ed | 1542 | else if (NILP (range_list)) |
1d5d7200 | 1543 | error ("Invalid script or charset name: %s", |
eb36588a | 1544 | SDATA (SYMBOL_NAME (target))); |
8a9be3ac | 1545 | } |
eb36588a KH |
1546 | else if (NILP (target)) |
1547 | range_list = Fcons (Qnil, Qnil); | |
1548 | else | |
1549 | error ("Invalid target for setting a font"); | |
0d407d77 | 1550 | |
a3d16f39 KH |
1551 | if (ascii_changed) |
1552 | { | |
1553 | Lisp_Object val; | |
1554 | ||
1555 | if (NILP (font_spec)) | |
1556 | error ("Can't set ASCII font to nil"); | |
1557 | val = CHAR_TABLE_REF (fontset, 0); | |
1558 | if (! NILP (val) && EQ (add, Qappend)) | |
1559 | /* We are going to change just an additional font for ASCII. */ | |
1560 | ascii_changed = 0; | |
1561 | } | |
fb78e2ed KH |
1562 | |
1563 | if (charset) | |
1564 | { | |
a3d16f39 KH |
1565 | Lisp_Object arg; |
1566 | ||
1567 | arg = Fmake_vector (make_number (5), Qnil); | |
1568 | ASET (arg, 0, fontset); | |
1569 | ASET (arg, 1, font_def); | |
1570 | ASET (arg, 2, add); | |
1571 | ASET (arg, 3, ascii_changed ? Qt : Qnil); | |
1572 | ASET (arg, 4, range_list); | |
fb78e2ed | 1573 | |
a3d16f39 | 1574 | map_charset_chars (set_fontset_font, Qnil, arg, charset, |
fb78e2ed KH |
1575 | CHARSET_MIN_CODE (charset), |
1576 | CHARSET_MAX_CODE (charset)); | |
a3d16f39 | 1577 | range_list = AREF (arg, 4); |
fb78e2ed | 1578 | } |
1d5d7200 KH |
1579 | for (; CONSP (range_list); range_list = XCDR (range_list)) |
1580 | FONTSET_ADD (fontset, XCAR (range_list), font_def, add); | |
4ed46869 | 1581 | |
d6490542 KH |
1582 | if (ascii_changed) |
1583 | { | |
7519b8cd | 1584 | Lisp_Object tail, fr, alist; |
d6490542 KH |
1585 | int fontset_id = XINT (FONTSET_ID (fontset)); |
1586 | ||
d6490542 KH |
1587 | FONTSET_ASCII (fontset) = fontname; |
1588 | name = FONTSET_NAME (fontset); | |
7519b8cd | 1589 | FOR_EACH_FRAME (tail, fr) |
d6490542 | 1590 | { |
7519b8cd | 1591 | FRAME_PTR f = XFRAME (fr); |
d6490542 | 1592 | Lisp_Object font_object; |
0875632e | 1593 | struct face *face; |
d6490542 | 1594 | |
0875632e | 1595 | if (FRAME_INITIAL_P (f) || FRAME_TERMCAP_P (f)) |
d6490542 KH |
1596 | continue; |
1597 | if (fontset_id != FRAME_FONTSET (f)) | |
1598 | continue; | |
0875632e KH |
1599 | face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
1600 | if (face) | |
1601 | font_object = font_load_for_lface (f, face->lface, font_spec); | |
1602 | else | |
1603 | font_object = font_open_by_spec (f, font_spec); | |
d6490542 KH |
1604 | if (! NILP (font_object)) |
1605 | { | |
1606 | update_auto_fontset_alist (font_object, fontset); | |
0875632e | 1607 | alist = Fcons (Fcons (Qfont, Fcons (name, font_object)), Qnil); |
7519b8cd | 1608 | Fmodify_frame_parameters (fr, alist); |
d6490542 KH |
1609 | } |
1610 | } | |
1611 | } | |
1612 | ||
0875632e KH |
1613 | /* Free all realized fontsets whose base is FONTSET. This way, the |
1614 | specified character(s) are surely redisplayed by a correct | |
1615 | font. */ | |
1616 | free_realized_fontsets (fontset); | |
1617 | ||
4ed46869 KH |
1618 | return Qnil; |
1619 | } | |
1620 | ||
06f76f0d KH |
1621 | |
1622 | DEFUN ("new-fontset", Fnew_fontset, Snew_fontset, 2, 2, 0, | |
1623 | doc: /* Create a new fontset NAME from font information in FONTLIST. | |
1624 | ||
1d5d7200 | 1625 | FONTLIST is an alist of scripts vs the corresponding font specification list. |
d6aaac9e KH |
1626 | Each element of FONTLIST has the form (SCRIPT FONT-SPEC ...), where a |
1627 | character of SCRIPT is displayed by a font that matches one of | |
1628 | FONT-SPEC. | |
06f76f0d | 1629 | |
d6aaac9e KH |
1630 | SCRIPT is a symbol that appears in the first extra slot of the |
1631 | char-table `char-script-table'. | |
06f76f0d | 1632 | |
1d5d7200 KH |
1633 | FONT-SPEC is a vector, a cons, or a string. See the documentation of |
1634 | `set-fontset-font' for the meaning. */) | |
5842a27b | 1635 | (Lisp_Object name, Lisp_Object fontlist) |
06f76f0d | 1636 | { |
1d5d7200 | 1637 | Lisp_Object fontset; |
1d5d7200 | 1638 | int id; |
06f76f0d KH |
1639 | |
1640 | CHECK_STRING (name); | |
1641 | CHECK_LIST (fontlist); | |
1642 | ||
581f7ac7 | 1643 | name = Fdowncase (name); |
1d5d7200 KH |
1644 | id = fs_query_fontset (name, 0); |
1645 | if (id < 0) | |
0d407d77 | 1646 | { |
581f7ac7 KH |
1647 | Lisp_Object font_spec = Ffont_spec (0, NULL); |
1648 | Lisp_Object short_name; | |
5f2d79e0 | 1649 | char xlfd[256]; |
581f7ac7 KH |
1650 | int len; |
1651 | ||
51b59d79 | 1652 | if (font_parse_xlfd (SSDATA (name), font_spec) < 0) |
d6aaac9e | 1653 | error ("Fontset name must be in XLFD format"); |
581f7ac7 | 1654 | short_name = AREF (font_spec, FONT_REGISTRY_INDEX); |
51b59d79 | 1655 | if (strncmp (SSDATA (SYMBOL_NAME (short_name)), "fontset-", 8) |
581f7ac7 KH |
1656 | || SBYTES (SYMBOL_NAME (short_name)) < 9) |
1657 | error ("Registry field of fontset name must be \"fontset-*\""); | |
1658 | Vfontset_alias_alist = Fcons (Fcons (name, SYMBOL_NAME (short_name)), | |
1659 | Vfontset_alias_alist); | |
1660 | ASET (font_spec, FONT_REGISTRY_INDEX, Qiso8859_1); | |
d6aaac9e | 1661 | fontset = make_fontset (Qnil, name, Qnil); |
5f2d79e0 KH |
1662 | len = font_unparse_xlfd (font_spec, 0, xlfd, 256); |
1663 | if (len < 0) | |
1664 | error ("Invalid fontset name (perhaps too long): %s", SDATA (name)); | |
581f7ac7 | 1665 | FONTSET_ASCII (fontset) = make_unibyte_string (xlfd, len); |
d6aaac9e | 1666 | } |
1d5d7200 KH |
1667 | else |
1668 | { | |
8510724d | 1669 | fontset = FONTSET_FROM_ID (id); |
1d5d7200 KH |
1670 | free_realized_fontsets (fontset); |
1671 | Fset_char_table_range (fontset, Qt, Qnil); | |
0d407d77 | 1672 | } |
4ed46869 | 1673 | |
1d5d7200 KH |
1674 | for (; ! NILP (fontlist); fontlist = Fcdr (fontlist)) |
1675 | { | |
1676 | Lisp_Object elt, script; | |
1677 | ||
1678 | elt = Fcar (fontlist); | |
1679 | script = Fcar (elt); | |
cc36ddbf KH |
1680 | elt = Fcdr (elt); |
1681 | if (CONSP (elt) && (NILP (XCDR (elt)) || CONSP (XCDR (elt)))) | |
1682 | for (; CONSP (elt); elt = XCDR (elt)) | |
1683 | Fset_fontset_font (name, script, XCAR (elt), Qnil, Qappend); | |
1684 | else | |
1685 | Fset_fontset_font (name, script, elt, Qnil, Qappend); | |
1d5d7200 | 1686 | } |
06f76f0d KH |
1687 | return name; |
1688 | } | |
1689 | ||
1690 | ||
452a78e0 | 1691 | /* Alist of automatically created fontsets. Each element is a cons |
581f7ac7 | 1692 | (FONT-SPEC . FONTSET-ID). */ |
452a78e0 | 1693 | static Lisp_Object auto_fontset_alist; |
d6aaac9e | 1694 | |
d6490542 | 1695 | /* Number of automatically created fontsets. */ |
d311d28c | 1696 | static ptrdiff_t num_auto_fontsets; |
d6490542 | 1697 | |
0b381c7e | 1698 | /* Return a fontset synthesized from FONT-OBJECT. This is called from |
d8d2f142 KH |
1699 | x_new_font when FONT-OBJECT is used for the default ASCII font of a |
1700 | frame, and the returned fontset is used for the default fontset of | |
1701 | that frame. The fontset specifies a font of the same registry as | |
1702 | FONT-OBJECT for all characters in the repertory of the registry | |
1703 | (see Vfont_encoding_alist). If the repertory is not known, the | |
1704 | fontset specifies the font for all Latin characters assuming that a | |
1705 | user intends to use FONT-OBJECT for Latin characters. */ | |
d6490542 | 1706 | |
d6aaac9e | 1707 | int |
971de7fb | 1708 | fontset_from_font (Lisp_Object font_object) |
8aa07a8d | 1709 | { |
03ef560c | 1710 | Lisp_Object font_name = font_get_name (font_object); |
92470028 | 1711 | Lisp_Object font_spec = copy_font_spec (font_object); |
d6490542 | 1712 | Lisp_Object registry = AREF (font_spec, FONT_REGISTRY_INDEX); |
581f7ac7 KH |
1713 | Lisp_Object fontset_spec, alias, name, fontset; |
1714 | Lisp_Object val; | |
8aa07a8d | 1715 | |
581f7ac7 KH |
1716 | val = assoc_no_quit (font_spec, auto_fontset_alist); |
1717 | if (CONSP (val)) | |
1718 | return XINT (FONTSET_ID (XCDR (val))); | |
d6490542 | 1719 | if (num_auto_fontsets++ == 0) |
581f7ac7 | 1720 | alias = intern ("fontset-startup"); |
03ef560c KH |
1721 | else |
1722 | { | |
d311d28c | 1723 | char temp[sizeof "fontset-auto" + INT_STRLEN_BOUND (ptrdiff_t)]; |
8aa07a8d | 1724 | |
d311d28c | 1725 | sprintf (temp, "fontset-auto%"pD"d", num_auto_fontsets - 1); |
581f7ac7 | 1726 | alias = intern (temp); |
03ef560c | 1727 | } |
92470028 | 1728 | fontset_spec = copy_font_spec (font_spec); |
581f7ac7 | 1729 | ASET (fontset_spec, FONT_REGISTRY_INDEX, alias); |
7ae2e7f0 | 1730 | name = Ffont_xlfd_name (fontset_spec, Qnil); |
03ef560c | 1731 | if (NILP (name)) |
581f7ac7 | 1732 | abort (); |
03ef560c | 1733 | fontset = make_fontset (Qnil, name, Qnil); |
581f7ac7 KH |
1734 | Vfontset_alias_alist = Fcons (Fcons (name, SYMBOL_NAME (alias)), |
1735 | Vfontset_alias_alist); | |
1736 | alias = Fdowncase (AREF (font_object, FONT_NAME_INDEX)); | |
1737 | Vfontset_alias_alist = Fcons (Fcons (name, alias), Vfontset_alias_alist); | |
1738 | auto_fontset_alist = Fcons (Fcons (font_spec, fontset), auto_fontset_alist); | |
d8d2f142 KH |
1739 | font_spec = Ffont_spec (0, NULL); |
1740 | ASET (font_spec, FONT_REGISTRY_INDEX, registry); | |
1741 | { | |
1742 | Lisp_Object target = find_font_encoding (SYMBOL_NAME (registry)); | |
1743 | ||
1744 | if (CONSP (target)) | |
1745 | target = XCDR (target); | |
1746 | if (! CHARSETP (target)) | |
1747 | target = Qlatin; | |
1748 | Fset_fontset_font (name, target, font_spec, Qnil, Qnil); | |
1749 | Fset_fontset_font (name, Qnil, font_spec, Qnil, Qnil); | |
1750 | } | |
1751 | ||
d6490542 | 1752 | FONTSET_ASCII (fontset) = font_name; |
edfda783 | 1753 | |
03ef560c | 1754 | return XINT (FONTSET_ID (fontset)); |
8aa07a8d KH |
1755 | } |
1756 | ||
d6490542 KH |
1757 | |
1758 | /* Update auto_fontset_alist for FONTSET. When an ASCII font of | |
1759 | FONTSET is changed, we delete an entry of FONTSET if any from | |
1760 | auto_fontset_alist so that FONTSET is not re-used by | |
1761 | fontset_from_font. */ | |
1762 | ||
1763 | static void | |
971de7fb | 1764 | update_auto_fontset_alist (Lisp_Object font_object, Lisp_Object fontset) |
d6490542 KH |
1765 | { |
1766 | Lisp_Object prev, tail; | |
1767 | ||
1768 | for (prev = Qnil, tail = auto_fontset_alist; CONSP (tail); | |
1769 | prev = tail, tail = XCDR (tail)) | |
1770 | if (EQ (fontset, XCDR (XCAR (tail)))) | |
1771 | { | |
1772 | if (NILP (prev)) | |
1773 | auto_fontset_alist = XCDR (tail); | |
1774 | else | |
1775 | XSETCDR (prev, XCDR (tail)); | |
1776 | break; | |
1777 | } | |
1778 | } | |
1779 | ||
1780 | ||
fe44f009 KH |
1781 | /* Return a cons (FONT-OBJECT . GLYPH-CODE). |
1782 | FONT-OBJECT is the font for the character at POSITION in the current | |
1ff005e1 | 1783 | buffer. This is computed from all the text properties and overlays |
09e80d9f | 1784 | that apply to POSITION. POSITION may be nil, in which case, |
fe44f009 | 1785 | FONT-SPEC is the font for displaying the character CH with the |
cf14fd6e KH |
1786 | default face. |
1787 | ||
92c15c34 KH |
1788 | GLYPH-CODE is the glyph code in the font to use for the character. |
1789 | ||
1790 | If the 2nd optional arg CH is non-nil, it is a character to check | |
1791 | the font instead of the character at POSITION. | |
1792 | ||
1793 | It returns nil in the following cases: | |
1ff005e1 KH |
1794 | |
1795 | (1) The window system doesn't have a font for the character (thus | |
1796 | it is displayed by an empty box). | |
1797 | ||
1798 | (2) The character code is invalid. | |
1799 | ||
cf14fd6e KH |
1800 | (3) If POSITION is not nil, and the current buffer is not displayed |
1801 | in any window. | |
1ff005e1 KH |
1802 | |
1803 | In addition, the returned font name may not take into account of | |
1804 | such redisplay engine hooks as what used in jit-lock-mode if | |
1805 | POSITION is currently not visible. */ | |
1806 | ||
1807 | ||
92c15c34 | 1808 | DEFUN ("internal-char-font", Finternal_char_font, Sinternal_char_font, 1, 2, 0, |
335c5470 | 1809 | doc: /* For internal use only. */) |
5842a27b | 1810 | (Lisp_Object position, Lisp_Object ch) |
1ff005e1 | 1811 | { |
d311d28c | 1812 | ptrdiff_t pos, pos_byte, dummy; |
1ff005e1 KH |
1813 | int face_id; |
1814 | int c; | |
1ff005e1 KH |
1815 | struct frame *f; |
1816 | struct face *face; | |
1817 | ||
cf14fd6e | 1818 | if (NILP (position)) |
92c15c34 KH |
1819 | { |
1820 | CHECK_CHARACTER (ch); | |
1821 | c = XINT (ch); | |
cf14fd6e | 1822 | f = XFRAME (selected_frame); |
f2cec7a9 | 1823 | face_id = lookup_basic_face (f, DEFAULT_FACE_ID); |
327719ee | 1824 | pos = -1; |
cf14fd6e KH |
1825 | } |
1826 | else | |
1827 | { | |
f0397f5a | 1828 | Lisp_Object window; |
cf14fd6e KH |
1829 | struct window *w; |
1830 | ||
1831 | CHECK_NUMBER_COERCE_MARKER (position); | |
d311d28c | 1832 | if (! (BEGV <= XINT (position) && XINT (position) < ZV)) |
cf14fd6e | 1833 | args_out_of_range_3 (position, make_number (BEGV), make_number (ZV)); |
d311d28c | 1834 | pos = XINT (position); |
cf14fd6e KH |
1835 | pos_byte = CHAR_TO_BYTE (pos); |
1836 | if (NILP (ch)) | |
1837 | c = FETCH_CHAR (pos_byte); | |
1838 | else | |
1839 | { | |
1840 | CHECK_NATNUM (ch); | |
1841 | c = XINT (ch); | |
1842 | } | |
1843 | window = Fget_buffer_window (Fcurrent_buffer (), Qnil); | |
1844 | if (NILP (window)) | |
1845 | return Qnil; | |
1846 | w = XWINDOW (window); | |
1847 | f = XFRAME (w->frame); | |
6970f632 CY |
1848 | face_id = face_at_buffer_position (w, pos, -1, -1, &dummy, |
1849 | pos + 100, 0, -1); | |
92c15c34 | 1850 | } |
2638320e | 1851 | if (! CHAR_VALID_P (c)) |
1ff005e1 | 1852 | return Qnil; |
327719ee | 1853 | face_id = FACE_FOR_CHAR (f, FACE_FROM_ID (f, face_id), c, pos, Qnil); |
1ff005e1 | 1854 | face = FACE_FROM_ID (f, face_id); |
581f7ac7 | 1855 | if (face->font) |
8aa07a8d | 1856 | { |
fe44f009 KH |
1857 | unsigned code = face->font->driver->encode_char (face->font, c); |
1858 | Lisp_Object font_object; | |
581f7ac7 KH |
1859 | |
1860 | if (code == FONT_INVALID_CODE) | |
1861 | return Qnil; | |
fe44f009 | 1862 | XSETFONT (font_object, face->font); |
be44ca6c | 1863 | return Fcons (font_object, INTEGER_TO_CONS (code)); |
92c15c34 KH |
1864 | } |
1865 | return Qnil; | |
1ff005e1 KH |
1866 | } |
1867 | ||
1868 | ||
1d5d7200 KH |
1869 | DEFUN ("fontset-info", Ffontset_info, Sfontset_info, 1, 2, 0, |
1870 | doc: /* Return information about a fontset FONTSET on frame FRAME. | |
e2b45cf9 | 1871 | |
a3d16f39 KH |
1872 | FONTSET is a fontset name string, nil for the fontset of FRAME, or t |
1873 | for the default fontset. FRAME nil means the selected frame. | |
1ff005e1 | 1874 | |
a3d16f39 | 1875 | The value is a char-table whose elements have this form: |
1ff005e1 | 1876 | |
a3d16f39 | 1877 | ((FONT OPENED-FONT ...) ...) |
1ff005e1 | 1878 | |
a3d16f39 | 1879 | FONT is a name of font specified for a range of characters. |
1ff005e1 | 1880 | |
d6aaac9e | 1881 | OPENED-FONT is a name of a font actually opened. |
1ff005e1 | 1882 | |
a3d16f39 KH |
1883 | The char-table has one extra slot. If FONTSET is not the default |
1884 | fontset, the value the extra slot is a char-table containing the | |
1885 | information about the derived fonts from the default fontset. The | |
1886 | format is the same as above. */) | |
5842a27b | 1887 | (Lisp_Object fontset, Lisp_Object frame) |
4ed46869 | 1888 | { |
cc7b6145 KH |
1889 | Lisp_Object *realized[2], fontsets[2], tables[2]; |
1890 | Lisp_Object val, elt; | |
1891 | int c, i, j, k; | |
fc8865fc | 1892 | |
4ed46869 KH |
1893 | (*check_window_system_func) (); |
1894 | ||
a3d16f39 | 1895 | fontset = check_fontset_name (fontset, &frame); |
4ed46869 | 1896 | |
1d5d7200 KH |
1897 | /* Recode fontsets realized on FRAME from the base fontset FONTSET |
1898 | in the table `realized'. */ | |
cc7b6145 KH |
1899 | realized[0] = (Lisp_Object *) alloca (sizeof (Lisp_Object) |
1900 | * ASIZE (Vfontset_table)); | |
1901 | for (i = j = 0; i < ASIZE (Vfontset_table); i++) | |
0d407d77 | 1902 | { |
1ff005e1 KH |
1903 | elt = FONTSET_FROM_ID (i); |
1904 | if (!NILP (elt) | |
1d5d7200 KH |
1905 | && EQ (FONTSET_BASE (elt), fontset) |
1906 | && EQ (FONTSET_FRAME (elt), frame)) | |
cc7b6145 | 1907 | realized[0][j++] = elt; |
0d407d77 | 1908 | } |
cc7b6145 | 1909 | realized[0][j] = Qnil; |
4ed46869 | 1910 | |
cc7b6145 KH |
1911 | realized[1] = (Lisp_Object *) alloca (sizeof (Lisp_Object) |
1912 | * ASIZE (Vfontset_table)); | |
1913 | for (i = j = 0; ! NILP (realized[0][i]); i++) | |
1914 | { | |
1915 | elt = FONTSET_DEFAULT (realized[0][i]); | |
1916 | if (! NILP (elt)) | |
1917 | realized[1][j++] = elt; | |
1918 | } | |
1919 | realized[1][j] = Qnil; | |
1920 | ||
1921 | tables[0] = Fmake_char_table (Qfontset_info, Qnil); | |
cc7b6145 | 1922 | fontsets[0] = fontset; |
348db3dd | 1923 | if (!EQ (fontset, Vdefault_fontset)) |
a3d16f39 KH |
1924 | { |
1925 | tables[1] = Fmake_char_table (Qnil, Qnil); | |
1926 | XCHAR_TABLE (tables[0])->extras[0] = tables[1]; | |
1927 | fontsets[1] = Vdefault_fontset; | |
1928 | } | |
e2b45cf9 | 1929 | |
1d5d7200 KH |
1930 | /* Accumulate information of the fontset in TABLE. The format of |
1931 | each element is ((FONT-SPEC OPENED-FONT ...) ...). */ | |
cc7b6145 | 1932 | for (k = 0; k <= 1; k++) |
0d407d77 | 1933 | { |
cc7b6145 | 1934 | for (c = 0; c <= MAX_CHAR; ) |
d6aaac9e | 1935 | { |
5b30be1a | 1936 | int from = c, to = MAX_5_BYTE_CHAR; |
0d407d77 | 1937 | |
cc7b6145 KH |
1938 | if (c <= MAX_5_BYTE_CHAR) |
1939 | { | |
1940 | val = char_table_ref_and_range (fontsets[k], c, &from, &to); | |
cc7b6145 KH |
1941 | } |
1942 | else | |
1943 | { | |
1944 | val = FONTSET_FALLBACK (fontsets[k]); | |
1945 | to = MAX_CHAR; | |
1946 | } | |
d6aaac9e | 1947 | if (VECTORP (val)) |
0d407d77 | 1948 | { |
d6aaac9e KH |
1949 | Lisp_Object alist; |
1950 | ||
1951 | /* At first, set ALIST to ((FONT-SPEC) ...). */ | |
1952 | for (alist = Qnil, i = 0; i < ASIZE (val); i++) | |
581f7ac7 KH |
1953 | if (! NILP (AREF (val, i))) |
1954 | alist = Fcons (Fcons (FONT_DEF_SPEC (AREF (val, i)), Qnil), | |
1955 | alist); | |
d6aaac9e KH |
1956 | alist = Fnreverse (alist); |
1957 | ||
660100f3 | 1958 | /* Then store opened font names to cdr of each elements. */ |
cc7b6145 | 1959 | for (i = 0; ! NILP (realized[k][i]); i++) |
1ff005e1 | 1960 | { |
cc7b6145 KH |
1961 | if (c <= MAX_5_BYTE_CHAR) |
1962 | val = FONTSET_REF (realized[k][i], c); | |
1963 | else | |
1964 | val = FONTSET_FALLBACK (realized[k][i]); | |
a3d16f39 | 1965 | if (! CONSP (val) || ! VECTORP (XCDR (val))) |
d6aaac9e | 1966 | continue; |
a3d16f39 KH |
1967 | /* VAL: (int . [[FACE-ID FONT-DEF FONT-OBJECT int] ... ]) */ |
1968 | val = XCDR (val); | |
1969 | for (j = 0; j < ASIZE (val); j++) | |
3d4448a8 | 1970 | { |
581f7ac7 KH |
1971 | elt = AREF (val, j); |
1972 | if (FONT_OBJECT_P (RFONT_DEF_OBJECT (elt))) | |
1973 | { | |
1974 | Lisp_Object font_object = RFONT_DEF_OBJECT (elt); | |
1975 | Lisp_Object slot, name; | |
1976 | ||
1977 | slot = Fassq (RFONT_DEF_SPEC (elt), alist); | |
1978 | name = AREF (font_object, FONT_NAME_INDEX); | |
1979 | if (NILP (Fmember (name, XCDR (slot)))) | |
1980 | nconc2 (slot, Fcons (name, Qnil)); | |
1981 | } | |
3d4448a8 | 1982 | } |
1ff005e1 | 1983 | } |
d6aaac9e KH |
1984 | |
1985 | /* Store ALIST in TBL for characters C..TO. */ | |
cc7b6145 KH |
1986 | if (c <= MAX_5_BYTE_CHAR) |
1987 | char_table_set_range (tables[k], c, to, alist); | |
1988 | else | |
1989 | XCHAR_TABLE (tables[k])->defalt = alist; | |
581f7ac7 KH |
1990 | |
1991 | /* At last, change each elements to font names. */ | |
1992 | for (; CONSP (alist); alist = XCDR (alist)) | |
1993 | { | |
1994 | elt = XCAR (alist); | |
7ae2e7f0 | 1995 | XSETCAR (elt, Ffont_xlfd_name (XCAR (elt), Qnil)); |
581f7ac7 | 1996 | } |
0d407d77 | 1997 | } |
d6aaac9e | 1998 | c = to + 1; |
0d407d77 | 1999 | } |
348db3dd | 2000 | if (EQ (fontset, Vdefault_fontset)) |
a3d16f39 | 2001 | break; |
0d407d77 | 2002 | } |
a921395d | 2003 | |
cc7b6145 | 2004 | return tables[0]; |
4ed46869 KH |
2005 | } |
2006 | ||
1d5d7200 | 2007 | |
0fdf26e6 | 2008 | DEFUN ("fontset-font", Ffontset_font, Sfontset_font, 2, 3, 0, |
335c5470 | 2009 | doc: /* Return a font name pattern for character CH in fontset NAME. |
0fdf26e6 | 2010 | If NAME is t, find a pattern in the default fontset. |
5fc05db0 | 2011 | If NAME is nil, find a pattern in the fontset of the selected frame. |
0fdf26e6 KH |
2012 | |
2013 | The value has the form (FAMILY . REGISTRY), where FAMILY is a font | |
2014 | family name and REGISTRY is a font registry name. This is actually | |
2015 | the first font name pattern for CH in the fontset or in the default | |
2016 | fontset. | |
2017 | ||
2018 | If the 2nd optional arg ALL is non-nil, return a list of all font name | |
2019 | patterns. */) | |
5842a27b | 2020 | (Lisp_Object name, Lisp_Object ch, Lisp_Object all) |
0d407d77 | 2021 | { |
1337ac77 | 2022 | int c; |
0fdf26e6 KH |
2023 | Lisp_Object fontset, elt, list, repertory, val; |
2024 | int i, j; | |
a3d16f39 | 2025 | Lisp_Object frame; |
0d407d77 | 2026 | |
a3d16f39 KH |
2027 | frame = Qnil; |
2028 | fontset = check_fontset_name (name, &frame); | |
0d407d77 | 2029 | |
06f76f0d | 2030 | CHECK_CHARACTER (ch); |
0d407d77 | 2031 | c = XINT (ch); |
0fdf26e6 KH |
2032 | list = Qnil; |
2033 | while (1) | |
2034 | { | |
2035 | for (i = 0, elt = FONTSET_REF (fontset, c); i < 2; | |
2036 | i++, elt = FONTSET_FALLBACK (fontset)) | |
2037 | if (VECTORP (elt)) | |
2038 | for (j = 0; j < ASIZE (elt); j++) | |
2039 | { | |
a124bbb6 KH |
2040 | Lisp_Object family, registry; |
2041 | ||
0fdf26e6 | 2042 | val = AREF (elt, j); |
5fc05db0 | 2043 | if (NILP (val)) |
563a866e | 2044 | return Qnil; |
0fdf26e6 KH |
2045 | repertory = AREF (val, 1); |
2046 | if (INTEGERP (repertory)) | |
2047 | { | |
2048 | struct charset *charset = CHARSET_FROM_ID (XINT (repertory)); | |
2049 | ||
2050 | if (! CHAR_CHARSET_P (c, charset)) | |
2051 | continue; | |
2052 | } | |
2053 | else if (CHAR_TABLE_P (repertory)) | |
2054 | { | |
2055 | if (NILP (CHAR_TABLE_REF (repertory, c))) | |
2056 | continue; | |
2057 | } | |
2058 | val = AREF (val, 0); | |
a124bbb6 KH |
2059 | /* VAL is a FONT-SPEC */ |
2060 | family = AREF (val, FONT_FAMILY_INDEX); | |
2061 | if (! NILP (family)) | |
2062 | family = SYMBOL_NAME (family); | |
2063 | registry = AREF (val, FONT_REGISTRY_INDEX); | |
2064 | if (! NILP (registry)) | |
2065 | registry = SYMBOL_NAME (registry); | |
2066 | val = Fcons (family, registry); | |
0fdf26e6 KH |
2067 | if (NILP (all)) |
2068 | return val; | |
2069 | list = Fcons (val, list); | |
2070 | } | |
2071 | if (EQ (fontset, Vdefault_fontset)) | |
2072 | break; | |
2073 | fontset = Vdefault_fontset; | |
2074 | } | |
2075 | return (Fnreverse (list)); | |
0d407d77 | 2076 | } |
0d407d77 KH |
2077 | |
2078 | DEFUN ("fontset-list", Ffontset_list, Sfontset_list, 0, 0, 0, | |
335c5470 | 2079 | doc: /* Return a list of all defined fontset names. */) |
5842a27b | 2080 | (void) |
0d407d77 KH |
2081 | { |
2082 | Lisp_Object fontset, list; | |
2083 | int i; | |
2084 | ||
2085 | list = Qnil; | |
2086 | for (i = 0; i < ASIZE (Vfontset_table); i++) | |
2087 | { | |
2088 | fontset = FONTSET_FROM_ID (i); | |
2089 | if (!NILP (fontset) | |
2090 | && BASE_FONTSET_P (fontset)) | |
2091 | list = Fcons (FONTSET_NAME (fontset), list); | |
2092 | } | |
1ff005e1 | 2093 | |
0d407d77 KH |
2094 | return list; |
2095 | } | |
2096 | ||
452a78e0 | 2097 | |
a54e2c05 | 2098 | #ifdef ENABLE_CHECKING |
452a78e0 | 2099 | |
8a10d76c PE |
2100 | Lisp_Object dump_fontset (Lisp_Object) EXTERNALLY_VISIBLE; |
2101 | ||
452a78e0 | 2102 | Lisp_Object |
ef1b0ba7 | 2103 | dump_fontset (Lisp_Object fontset) |
452a78e0 KH |
2104 | { |
2105 | Lisp_Object vec; | |
2106 | ||
2107 | vec = Fmake_vector (make_number (3), Qnil); | |
2108 | ASET (vec, 0, FONTSET_ID (fontset)); | |
2109 | ||
2110 | if (BASE_FONTSET_P (fontset)) | |
2111 | { | |
2112 | ASET (vec, 1, FONTSET_NAME (fontset)); | |
2113 | } | |
2114 | else | |
2115 | { | |
2116 | Lisp_Object frame; | |
2117 | ||
2118 | frame = FONTSET_FRAME (fontset); | |
2119 | if (FRAMEP (frame)) | |
2120 | { | |
2121 | FRAME_PTR f = XFRAME (frame); | |
2122 | ||
2123 | if (FRAME_LIVE_P (f)) | |
1c82b4b3 KH |
2124 | ASET (vec, 1, |
2125 | Fcons (FONTSET_NAME (FONTSET_BASE (fontset)), f->name)); | |
452a78e0 | 2126 | else |
1c82b4b3 KH |
2127 | ASET (vec, 1, |
2128 | Fcons (FONTSET_NAME (FONTSET_BASE (fontset)), Qnil)); | |
452a78e0 | 2129 | } |
eb36588a KH |
2130 | if (!NILP (FONTSET_DEFAULT (fontset))) |
2131 | ASET (vec, 2, FONTSET_ID (FONTSET_DEFAULT (fontset))); | |
452a78e0 KH |
2132 | } |
2133 | return vec; | |
2134 | } | |
2135 | ||
a7ca3326 | 2136 | DEFUN ("fontset-list-all", Ffontset_list_all, Sfontset_list_all, 0, 0, 0, |
452a78e0 | 2137 | doc: /* Return a brief summary of all fontsets for debug use. */) |
5842a27b | 2138 | (void) |
452a78e0 KH |
2139 | { |
2140 | Lisp_Object val; | |
2141 | int i; | |
2142 | ||
2143 | for (i = 0, val = Qnil; i < ASIZE (Vfontset_table); i++) | |
2144 | if (! NILP (AREF (Vfontset_table, i))) | |
2145 | val = Fcons (dump_fontset (AREF (Vfontset_table, i)), val); | |
2146 | return (Fnreverse (val)); | |
2147 | } | |
a54e2c05 | 2148 | #endif /* ENABLE_CHECKING */ |
452a78e0 | 2149 | |
dfcf069d | 2150 | void |
971de7fb | 2151 | syms_of_fontset (void) |
4ed46869 | 2152 | { |
1d5d7200 | 2153 | DEFSYM (Qfontset, "fontset"); |
eb36588a | 2154 | Fput (Qfontset, Qchar_table_extra_slots, make_number (9)); |
d6aaac9e KH |
2155 | DEFSYM (Qfontset_info, "fontset-info"); |
2156 | Fput (Qfontset_info, Qchar_table_extra_slots, make_number (1)); | |
4ed46869 | 2157 | |
1d5d7200 KH |
2158 | DEFSYM (Qprepend, "prepend"); |
2159 | DEFSYM (Qappend, "append"); | |
c3fb88cc | 2160 | DEFSYM (Qlatin, "latin"); |
4ed46869 KH |
2161 | |
2162 | Vcached_fontset_data = Qnil; | |
2163 | staticpro (&Vcached_fontset_data); | |
2164 | ||
0d407d77 KH |
2165 | Vfontset_table = Fmake_vector (make_number (32), Qnil); |
2166 | staticpro (&Vfontset_table); | |
0d407d77 KH |
2167 | |
2168 | Vdefault_fontset = Fmake_char_table (Qfontset, Qnil); | |
2169 | staticpro (&Vdefault_fontset); | |
1ff005e1 KH |
2170 | FONTSET_ID (Vdefault_fontset) = make_number (0); |
2171 | FONTSET_NAME (Vdefault_fontset) | |
d67b4f80 | 2172 | = make_pure_c_string ("-*-*-*-*-*-*-*-*-*-*-*-*-fontset-default"); |
ff7a2223 | 2173 | ASET (Vfontset_table, 0, Vdefault_fontset); |
1ff005e1 | 2174 | next_fontset_id = 1; |
4ed46869 | 2175 | |
452a78e0 KH |
2176 | auto_fontset_alist = Qnil; |
2177 | staticpro (&auto_fontset_alist); | |
2178 | ||
29208e82 | 2179 | DEFVAR_LISP ("font-encoding-charset-alist", Vfont_encoding_charset_alist, |
28e2436a KH |
2180 | doc: /* |
2181 | Alist of charsets vs the charsets to determine the preferred font encoding. | |
eb152aa9 | 2182 | Each element looks like (CHARSET . ENCODING-CHARSET), |
28e2436a KH |
2183 | where ENCODING-CHARSET is a charset registered in the variable |
2184 | `font-encoding-alist' as ENCODING. | |
2185 | ||
2186 | When a text has a property `charset' and the value is CHARSET, a font | |
2187 | whose encoding corresponds to ENCODING-CHARSET is preferred. */); | |
2188 | Vfont_encoding_charset_alist = Qnil; | |
2189 | ||
29208e82 | 2190 | DEFVAR_LISP ("use-default-ascent", Vuse_default_ascent, |
1d5d7200 KH |
2191 | doc: /* |
2192 | Char table of characters whose ascent values should be ignored. | |
335c5470 | 2193 | If an entry for a character is non-nil, the ascent value of the glyph |
eb152aa9 | 2194 | is assumed to be specified by _MULE_DEFAULT_ASCENT property of a font. |
335c5470 PJ |
2195 | |
2196 | This affects how a composite character which contains | |
2197 | such a character is displayed on screen. */); | |
2aeafb78 KH |
2198 | Vuse_default_ascent = Qnil; |
2199 | ||
29208e82 | 2200 | DEFVAR_LISP ("ignore-relative-composition", Vignore_relative_composition, |
1d5d7200 | 2201 | doc: /* |
eb152aa9 | 2202 | Char table of characters which are not composed relatively. |
335c5470 PJ |
2203 | If an entry for a character is non-nil, a composition sequence |
2204 | which contains that character is displayed so that | |
2205 | the glyph of that character is put without considering | |
2206 | an ascent and descent value of a previous character. */); | |
810abb87 | 2207 | Vignore_relative_composition = Qnil; |
6a7e6d80 | 2208 | |
29208e82 | 2209 | DEFVAR_LISP ("alternate-fontname-alist", Valternate_fontname_alist, |
335c5470 PJ |
2210 | doc: /* Alist of fontname vs list of the alternate fontnames. |
2211 | When a specified font name is not found, the corresponding | |
2212 | alternate fontnames (if any) are tried instead. */); | |
01d4b817 | 2213 | Valternate_fontname_alist = Qnil; |
8c83e4f9 | 2214 | |
29208e82 | 2215 | DEFVAR_LISP ("fontset-alias-alist", Vfontset_alias_alist, |
335c5470 | 2216 | doc: /* Alist of fontset names vs the aliases. */); |
1ff005e1 | 2217 | Vfontset_alias_alist = Fcons (Fcons (FONTSET_NAME (Vdefault_fontset), |
d67b4f80 | 2218 | make_pure_c_string ("fontset-default")), |
1ff005e1 | 2219 | Qnil); |
1c283e35 | 2220 | |
810abb87 | 2221 | DEFVAR_LISP ("vertical-centering-font-regexp", |
29208e82 | 2222 | Vvertical_centering_font_regexp, |
fb7ada5f | 2223 | doc: /* Regexp matching font names that require vertical centering on display. |
335c5470 | 2224 | When a character is displayed with such fonts, the character is displayed |
fc8865fc | 2225 | at the vertical center of lines. */); |
810abb87 KH |
2226 | Vvertical_centering_font_regexp = Qnil; |
2227 | ||
29208e82 | 2228 | DEFVAR_LISP ("otf-script-alist", Votf_script_alist, |
21ff5ed6 KH |
2229 | doc: /* Alist of OpenType script tags vs the corresponding script names. */); |
2230 | Votf_script_alist = Qnil; | |
2231 | ||
4ed46869 KH |
2232 | defsubr (&Squery_fontset); |
2233 | defsubr (&Snew_fontset); | |
2234 | defsubr (&Sset_fontset_font); | |
1ff005e1 | 2235 | defsubr (&Sinternal_char_font); |
4ed46869 | 2236 | defsubr (&Sfontset_info); |
0d407d77 KH |
2237 | defsubr (&Sfontset_font); |
2238 | defsubr (&Sfontset_list); | |
a54e2c05 | 2239 | #ifdef ENABLE_CHECKING |
452a78e0 KH |
2240 | defsubr (&Sfontset_list_all); |
2241 | #endif | |
e3400864 | 2242 | } |