Commit | Line | Data |
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4ed46869 | 1 | /* Fontset handler. |
95df8112 GM |
2 | |
3 | Copyright (C) 2001-2011 Free Software Foundation, Inc. | |
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 | 26 | |
0d407d77 KH |
27 | /* #define FONTSET_DEBUG */ |
28 | ||
4ed46869 | 29 | #include <config.h> |
0d407d77 | 30 | #include <stdio.h> |
d7306fe6 | 31 | #include <setjmp.h> |
0d407d77 | 32 | |
4ed46869 | 33 | #include "lisp.h" |
06f76f0d | 34 | #include "blockinput.h" |
1ff005e1 | 35 | #include "buffer.h" |
06f76f0d | 36 | #include "character.h" |
4ed46869 KH |
37 | #include "charset.h" |
38 | #include "ccl.h" | |
2538fae4 | 39 | #include "keyboard.h" |
4ed46869 | 40 | #include "frame.h" |
0d407d77 | 41 | #include "dispextern.h" |
e1a14cdc | 42 | #include "intervals.h" |
3541bb8f | 43 | #include "fontset.h" |
0d407d77 | 44 | #include "window.h" |
92c15c34 KH |
45 | #ifdef HAVE_X_WINDOWS |
46 | #include "xterm.h" | |
47 | #endif | |
48 | #ifdef WINDOWSNT | |
49 | #include "w32term.h" | |
50 | #endif | |
edfda783 AR |
51 | #ifdef HAVE_NS |
52 | #include "nsterm.h" | |
53 | #endif | |
fa971ac3 | 54 | #include "termhooks.h" |
0d407d77 | 55 | |
8aa07a8d | 56 | #include "font.h" |
8aa07a8d | 57 | |
0d407d77 | 58 | #undef xassert |
8f924df7 | 59 | #ifdef FONTSET_DEBUG |
0d407d77 KH |
60 | #define xassert(X) do {if (!(X)) abort ();} while (0) |
61 | #undef INLINE | |
62 | #define INLINE | |
8f924df7 KH |
63 | #else /* not FONTSET_DEBUG */ |
64 | #define xassert(X) (void) 0 | |
65 | #endif /* not FONTSET_DEBUG */ | |
0d407d77 | 66 | |
0d407d77 KH |
67 | /* FONTSET |
68 | ||
69 | A fontset is a collection of font related information to give | |
1d5d7200 KH |
70 | similar appearance (style, etc) of characters. A fontset has two |
71 | roles. One is to use for the frame parameter `font' as if it is an | |
72 | ASCII font. In that case, Emacs uses the font specified for | |
73 | `ascii' script for the frame's default font. | |
74 | ||
75 | Another role, the more important one, is to provide information | |
76 | about which font to use for each non-ASCII character. | |
77 | ||
78 | There are two kinds of fontsets; base and realized. A base fontset | |
79 | is created by `new-fontset' from Emacs Lisp explicitly. A realized | |
80 | fontset is created implicitly when a face is realized for ASCII | |
81 | characters. A face is also realized for non-ASCII characters based | |
82 | on an ASCII face. All of non-ASCII faces based on the same ASCII | |
83 | face share the same realized fontset. | |
8f924df7 | 84 | |
06f76f0d KH |
85 | A fontset object is implemented by a char-table whose default value |
86 | and parent are always nil. | |
fc8865fc | 87 | |
1d5d7200 KH |
88 | An element of a base fontset is a vector of FONT-DEFs which itself |
89 | is a vector [ FONT-SPEC ENCODING REPERTORY ]. | |
90 | ||
f088b054 KH |
91 | An element of a realized fontset is nil, t, 0, or a vector of this |
92 | form: | |
7e1a1cd9 | 93 | |
581f7ac7 KH |
94 | [ CHARSET-ORDERED-LIST-TICK PREFERRED-RFONT-DEF |
95 | RFONT-DEF0 RFONT-DEF1 ... ] | |
0d407d77 | 96 | |
7e1a1cd9 | 97 | RFONT-DEFn (i.e. Realized FONT-DEF) has this form: |
0d407d77 | 98 | |
581f7ac7 | 99 | [ FACE-ID FONT-DEF FONT-OBJECT SORTING-SCORE ] |
0d407d77 | 100 | |
581f7ac7 | 101 | RFONT-DEFn are automatically reordered by the current charset |
1d5d7200 | 102 | priority list. |
0d407d77 | 103 | |
7e1a1cd9 KH |
104 | The value nil means that we have not yet generated the above vector |
105 | from the base of the fontset. | |
0d407d77 | 106 | |
1d5d7200 KH |
107 | The value t means that no font is available for the corresponding |
108 | range of characters. | |
0d407d77 | 109 | |
f088b054 KH |
110 | The value 0 means that no font is available for the corresponding |
111 | range of characters in this fontset, but may be available in the | |
112 | default fontset. | |
113 | ||
0d407d77 | 114 | |
eb36588a | 115 | A fontset has 9 extra slots. |
0d407d77 | 116 | |
1d5d7200 | 117 | The 1st slot: the ID number of the fontset |
0d407d77 | 118 | |
1d5d7200 KH |
119 | The 2nd slot: |
120 | base: the name of the fontset | |
121 | realized: nil | |
0d407d77 | 122 | |
1d5d7200 | 123 | The 3rd slot: |
d6aaac9e | 124 | base: nil |
1d5d7200 | 125 | realized: the base fontset |
06f76f0d | 126 | |
1d5d7200 KH |
127 | The 4th slot: |
128 | base: nil | |
129 | realized: the frame that the fontset belongs to | |
0d407d77 | 130 | |
1d5d7200 KH |
131 | The 5th slot: |
132 | base: the font name for ASCII characters | |
133 | realized: nil | |
0d407d77 | 134 | |
1d5d7200 KH |
135 | The 6th slot: |
136 | base: nil | |
137 | realized: the ID number of a face to use for characters that | |
138 | has no font in a realized fontset. | |
0d407d77 | 139 | |
1d5d7200 KH |
140 | The 7th slot: |
141 | base: nil | |
142 | realized: Alist of font index vs the corresponding repertory | |
143 | char-table. | |
eb152aa9 | 144 | |
d6aaac9e KH |
145 | The 8th slot: |
146 | base: nil | |
147 | realized: If the base is not the default fontset, a fontset | |
148 | realized from the default fontset, else nil. | |
1d5d7200 | 149 | |
eb36588a | 150 | The 9th slot: |
cc7b6145 KH |
151 | base: Same as element value (but for fallback fonts). |
152 | realized: Likewise. | |
eb36588a | 153 | |
1d5d7200 | 154 | All fontsets are recorded in the vector Vfontset_table. |
0d407d77 KH |
155 | |
156 | ||
157 | DEFAULT FONTSET | |
158 | ||
1d5d7200 KH |
159 | There's a special base fontset named `default fontset' which |
160 | defines the default font specifications. When a base fontset | |
161 | doesn't specify a font for a specific character, the corresponding | |
162 | value in the default fontset is used. | |
0d407d77 | 163 | |
afe93d01 KH |
164 | The parent of a realized fontset created for such a face that has |
165 | no fontset is the default fontset. | |
0d407d77 KH |
166 | |
167 | ||
168 | These structures are hidden from the other codes than this file. | |
169 | The other codes handle fontsets only by their ID numbers. They | |
06f76f0d KH |
170 | usually use the variable name `fontset' for IDs. But, in this |
171 | file, we always use varialbe name `id' for IDs, and name `fontset' | |
1d5d7200 | 172 | for an actual fontset object, i.e., char-table. |
0d407d77 KH |
173 | |
174 | */ | |
175 | ||
176 | /********** VARIABLES and FUNCTION PROTOTYPES **********/ | |
177 | ||
d6aaac9e KH |
178 | static Lisp_Object Qfontset; |
179 | static Lisp_Object Qfontset_info; | |
1d5d7200 | 180 | static Lisp_Object Qprepend, Qappend; |
ef6e0694 | 181 | Lisp_Object Qlatin; |
0d407d77 KH |
182 | |
183 | /* Vector containing all fontsets. */ | |
184 | static Lisp_Object Vfontset_table; | |
185 | ||
fc8865fc | 186 | /* Next possibly free fontset ID. Usually this keeps the minimum |
0d407d77 KH |
187 | fontset ID not yet used. */ |
188 | static int next_fontset_id; | |
189 | ||
190 | /* The default fontset. This gives default FAMILY and REGISTRY of | |
06f76f0d | 191 | font for each character. */ |
0d407d77 | 192 | static Lisp_Object Vdefault_fontset; |
4ed46869 | 193 | |
4ed46869 | 194 | /* Check if any window system is used now. */ |
f57e2426 | 195 | void (*check_window_system_func) (void); |
4ed46869 | 196 | |
0d407d77 KH |
197 | |
198 | /* Prototype declarations for static functions. */ | |
f57e2426 J |
199 | static Lisp_Object fontset_add (Lisp_Object, Lisp_Object, Lisp_Object, |
200 | Lisp_Object); | |
201 | static Lisp_Object fontset_find_font (Lisp_Object, int, struct face *, | |
202 | int, int); | |
203 | static void reorder_font_vector (Lisp_Object, struct font *); | |
204 | static Lisp_Object fontset_font (Lisp_Object, int, struct face *, int); | |
205 | static Lisp_Object make_fontset (Lisp_Object, Lisp_Object, Lisp_Object); | |
206 | static Lisp_Object fontset_pattern_regexp (Lisp_Object); | |
207 | static void accumulate_script_ranges (Lisp_Object, Lisp_Object, | |
208 | Lisp_Object); | |
f57e2426 | 209 | static void set_fontset_font (Lisp_Object, Lisp_Object); |
2449d4d0 | 210 | |
556383ac KH |
211 | #ifdef FONTSET_DEBUG |
212 | ||
213 | /* Return 1 if ID is a valid fontset id, else return 0. */ | |
214 | ||
215 | static int | |
ef1b0ba7 | 216 | fontset_id_valid_p (int id) |
556383ac KH |
217 | { |
218 | return (id >= 0 && id < ASIZE (Vfontset_table) - 1); | |
219 | } | |
220 | ||
221 | #endif | |
222 | ||
0d407d77 KH |
223 | |
224 | \f | |
225 | /********** MACROS AND FUNCTIONS TO HANDLE FONTSET **********/ | |
226 | ||
0d407d77 KH |
227 | /* Return the fontset with ID. No check of ID's validness. */ |
228 | #define FONTSET_FROM_ID(id) AREF (Vfontset_table, id) | |
229 | ||
afe93d01 | 230 | /* Macros to access special values of FONTSET. */ |
0d407d77 | 231 | #define FONTSET_ID(fontset) XCHAR_TABLE (fontset)->extras[0] |
06f76f0d KH |
232 | |
233 | /* Macros to access special values of (base) FONTSET. */ | |
0d407d77 | 234 | #define FONTSET_NAME(fontset) XCHAR_TABLE (fontset)->extras[1] |
06f76f0d | 235 | #define FONTSET_ASCII(fontset) XCHAR_TABLE (fontset)->extras[4] |
a9a06e0b | 236 | /* #define FONTSET_SPEC(fontset) XCHAR_TABLE (fontset)->extras[5] */ |
06f76f0d | 237 | |
06f76f0d KH |
238 | /* Macros to access special values of (realized) FONTSET. */ |
239 | #define FONTSET_BASE(fontset) XCHAR_TABLE (fontset)->extras[2] | |
240 | #define FONTSET_FRAME(fontset) XCHAR_TABLE (fontset)->extras[3] | |
9459b1e9 | 241 | #define FONTSET_OBJLIST(fontset) XCHAR_TABLE (fontset)->extras[4] |
1d5d7200 | 242 | #define FONTSET_NOFONT_FACE(fontset) XCHAR_TABLE (fontset)->extras[5] |
a9a06e0b | 243 | /* #define FONTSET_REPERTORY(fontset) XCHAR_TABLE (fontset)->extras[6] */ |
eb36588a KH |
244 | #define FONTSET_DEFAULT(fontset) XCHAR_TABLE (fontset)->extras[7] |
245 | ||
cc7b6145 | 246 | /* For both base and realized fontset. */ |
eb36588a | 247 | #define FONTSET_FALLBACK(fontset) XCHAR_TABLE (fontset)->extras[8] |
0d407d77 | 248 | |
e3400864 | 249 | #define BASE_FONTSET_P(fontset) (NILP (FONTSET_BASE (fontset))) |
0d407d77 KH |
250 | |
251 | ||
581f7ac7 KH |
252 | /* Macros for FONT-DEF and RFONT-DEF of fontset. */ |
253 | #define FONT_DEF_NEW(font_def, font_spec, encoding, repertory) \ | |
254 | do { \ | |
255 | (font_def) = Fmake_vector (make_number (3), (font_spec)); \ | |
256 | ASET ((font_def), 1, encoding); \ | |
257 | ASET ((font_def), 2, repertory); \ | |
258 | } while (0) | |
259 | ||
260 | #define FONT_DEF_SPEC(font_def) AREF (font_def, 0) | |
261 | #define FONT_DEF_ENCODING(font_def) AREF (font_def, 1) | |
262 | #define FONT_DEF_REPERTORY(font_def) AREF (font_def, 2) | |
263 | ||
264 | #define RFONT_DEF_FACE(rfont_def) AREF (rfont_def, 0) | |
265 | #define RFONT_DEF_SET_FACE(rfont_def, face_id) \ | |
266 | ASET ((rfont_def), 0, make_number (face_id)) | |
267 | #define RFONT_DEF_FONT_DEF(rfont_def) AREF (rfont_def, 1) | |
268 | #define RFONT_DEF_SPEC(rfont_def) FONT_DEF_SPEC (AREF (rfont_def, 1)) | |
581f7ac7 KH |
269 | #define RFONT_DEF_OBJECT(rfont_def) AREF (rfont_def, 2) |
270 | #define RFONT_DEF_SET_OBJECT(rfont_def, object) \ | |
271 | ASET ((rfont_def), 2, (object)) | |
9dfdbc0a KH |
272 | /* Score of RFONT_DEF is an integer value; the lowest 8 bits represent |
273 | the order of listing by font backends, the higher bits represents | |
274 | the order given by charset priority list. The smaller value is | |
275 | preferable. */ | |
581f7ac7 KH |
276 | #define RFONT_DEF_SCORE(rfont_def) XINT (AREF (rfont_def, 3)) |
277 | #define RFONT_DEF_SET_SCORE(rfont_def, score) \ | |
278 | ASET ((rfont_def), 3, make_number (score)) | |
279 | #define RFONT_DEF_NEW(rfont_def, font_def) \ | |
280 | do { \ | |
281 | (rfont_def) = Fmake_vector (make_number (4), Qnil); \ | |
282 | ASET ((rfont_def), 1, (font_def)); \ | |
283 | RFONT_DEF_SET_SCORE ((rfont_def), 0); \ | |
284 | } while (0) | |
285 | ||
286 | ||
1d5d7200 KH |
287 | /* Return the element of FONTSET for the character C. If FONTSET is a |
288 | base fontset other then the default fontset and FONTSET doesn't | |
289 | contain information for C, return the information in the default | |
290 | fontset. */ | |
0d407d77 | 291 | |
1d5d7200 KH |
292 | #define FONTSET_REF(fontset, c) \ |
293 | (EQ (fontset, Vdefault_fontset) \ | |
294 | ? CHAR_TABLE_REF (fontset, c) \ | |
295 | : fontset_ref ((fontset), (c))) | |
0d407d77 | 296 | |
afe93d01 | 297 | static Lisp_Object |
971de7fb | 298 | fontset_ref (Lisp_Object fontset, int c) |
0d407d77 | 299 | { |
06f76f0d KH |
300 | Lisp_Object elt; |
301 | ||
1d5d7200 KH |
302 | elt = CHAR_TABLE_REF (fontset, c); |
303 | if (NILP (elt) && ! EQ (fontset, Vdefault_fontset) | |
304 | /* Don't check Vdefault_fontset for a realized fontset. */ | |
305 | && NILP (FONTSET_BASE (fontset))) | |
306 | elt = CHAR_TABLE_REF (Vdefault_fontset, c); | |
0d407d77 KH |
307 | return elt; |
308 | } | |
309 | ||
1d5d7200 KH |
310 | /* Set elements of FONTSET for characters in RANGE to the value ELT. |
311 | RANGE is a cons (FROM . TO), where FROM and TO are character codes | |
312 | specifying a range. */ | |
313 | ||
314 | #define FONTSET_SET(fontset, range, elt) \ | |
315 | Fset_char_table_range ((fontset), (range), (elt)) | |
316 | ||
0d407d77 | 317 | |
1d5d7200 | 318 | /* Modify the elements of FONTSET for characters in RANGE by replacing |
6bad8007 | 319 | with ELT or adding ELT. RANGE is a cons (FROM . TO), where FROM |
1d5d7200 KH |
320 | and TO are character codes specifying a range. If ADD is nil, |
321 | replace with ELT, if ADD is `prepend', prepend ELT, otherwise, | |
322 | append ELT. */ | |
323 | ||
cc7b6145 KH |
324 | #define FONTSET_ADD(fontset, range, elt, add) \ |
325 | (NILP (add) \ | |
326 | ? (NILP (range) \ | |
327 | ? (FONTSET_FALLBACK (fontset) = Fmake_vector (make_number (1), (elt))) \ | |
328 | : Fset_char_table_range ((fontset), (range), \ | |
329 | Fmake_vector (make_number (1), (elt)))) \ | |
1d5d7200 | 330 | : fontset_add ((fontset), (range), (elt), (add))) |
0d407d77 | 331 | |
b11a4ed7 | 332 | static Lisp_Object |
971de7fb | 333 | fontset_add (Lisp_Object fontset, Lisp_Object range, Lisp_Object elt, Lisp_Object add) |
06f76f0d | 334 | { |
eb36588a KH |
335 | Lisp_Object args[2]; |
336 | int idx = (EQ (add, Qappend) ? 0 : 1); | |
337 | ||
338 | args[1 - idx] = Fmake_vector (make_number (1), elt); | |
339 | ||
340 | if (CONSP (range)) | |
341 | { | |
342 | int from = XINT (XCAR (range)); | |
343 | int to = XINT (XCDR (range)); | |
344 | int from1, to1; | |
345 | ||
346 | do { | |
5b30be1a | 347 | from1 = from, to1 = to; |
eb36588a | 348 | args[idx] = char_table_ref_and_range (fontset, from, &from1, &to1); |
eb36588a KH |
349 | char_table_set_range (fontset, from, to1, |
350 | NILP (args[idx]) ? args[1 - idx] | |
351 | : Fvconcat (2, args)); | |
352 | from = to1 + 1; | |
353 | } while (from < to); | |
354 | } | |
355 | else | |
356 | { | |
357 | args[idx] = FONTSET_FALLBACK (fontset); | |
358 | FONTSET_FALLBACK (fontset) | |
359 | = NILP (args[idx]) ? args[1 - idx] : Fvconcat (2, args); | |
360 | } | |
b11a4ed7 | 361 | return Qnil; |
1d5d7200 KH |
362 | } |
363 | ||
581f7ac7 | 364 | static int |
971de7fb | 365 | fontset_compare_rfontdef (const void *val1, const void *val2) |
581f7ac7 | 366 | { |
41ad6003 KH |
367 | return (RFONT_DEF_SCORE (*(Lisp_Object *) val1) |
368 | - RFONT_DEF_SCORE (*(Lisp_Object *) val2)); | |
581f7ac7 | 369 | } |
1d5d7200 | 370 | |
ea0162a6 | 371 | /* Update FONT-GROUP which has this form: |
581f7ac7 KH |
372 | [ CHARSET-ORDERED-LIST-TICK PREFERRED-RFONT-DEF |
373 | RFONT-DEF0 RFONT-DEF1 ... ] | |
20746fe4 | 374 | Reorder RFONT-DEFs according to the current language, and update |
581f7ac7 KH |
375 | CHARSET-ORDERED-LIST-TICK. |
376 | ||
377 | If PREFERRED_FAMILY is not nil, that family has the higher priority | |
378 | if the encoding charsets or languages in font-specs are the same. */ | |
379 | ||
0d407d77 | 380 | static void |
971de7fb | 381 | reorder_font_vector (Lisp_Object font_group, struct font *font) |
1d5d7200 | 382 | { |
41ad6003 | 383 | Lisp_Object vec, font_object; |
1d5d7200 | 384 | int size; |
581f7ac7 KH |
385 | int i; |
386 | int score_changed = 0; | |
1d5d7200 | 387 | |
41ad6003 KH |
388 | if (font) |
389 | XSETFONT (font_object, font); | |
390 | else | |
391 | font_object = Qnil; | |
392 | ||
393 | vec = XCDR (font_group); | |
394 | size = ASIZE (vec); | |
395 | /* Exclude the tailing nil element from the reordering. */ | |
396 | if (NILP (AREF (vec, size - 1))) | |
397 | size--; | |
581f7ac7 KH |
398 | |
399 | for (i = 0; i < size; i++) | |
6bad8007 | 400 | { |
41ad6003 | 401 | Lisp_Object rfont_def = AREF (vec, i); |
581f7ac7 KH |
402 | Lisp_Object font_def = RFONT_DEF_FONT_DEF (rfont_def); |
403 | Lisp_Object font_spec = FONT_DEF_SPEC (font_def); | |
41ad6003 | 404 | int score = RFONT_DEF_SCORE (rfont_def) & 0xFF; |
9dfdbc0a | 405 | Lisp_Object otf_spec = Ffont_get (font_spec, QCotf); |
581f7ac7 | 406 | |
9dfdbc0a KH |
407 | if (! NILP (otf_spec)) |
408 | /* A font-spec with :otf is preferable regardless of encoding | |
409 | and language.. */ | |
410 | ; | |
411 | else if (! font_match_p (font_spec, font_object)) | |
eb152aa9 | 412 | { |
cd872f08 | 413 | Lisp_Object encoding = FONT_DEF_ENCODING (font_def); |
581f7ac7 | 414 | |
cd872f08 | 415 | if (! NILP (encoding)) |
41ad6003 KH |
416 | { |
417 | Lisp_Object tail; | |
581f7ac7 | 418 | |
41ad6003 KH |
419 | for (tail = Vcharset_ordered_list; |
420 | ! EQ (tail, Vcharset_non_preferred_head) && CONSP (tail); | |
421 | score += 0x100, tail = XCDR (tail)) | |
cd872f08 | 422 | if (EQ (encoding, XCAR (tail))) |
41ad6003 KH |
423 | break; |
424 | } | |
425 | else | |
426 | { | |
427 | Lisp_Object lang = Ffont_get (font_spec, QClang); | |
428 | ||
429 | if (! NILP (lang) | |
430 | && ! EQ (lang, Vcurrent_iso639_language) | |
431 | && (! CONSP (Vcurrent_iso639_language) | |
432 | || NILP (Fmemq (lang, Vcurrent_iso639_language)))) | |
433 | score |= 0x100; | |
434 | } | |
ea0162a6 | 435 | } |
581f7ac7 | 436 | if (RFONT_DEF_SCORE (rfont_def) != score) |
ea0162a6 | 437 | { |
581f7ac7 KH |
438 | RFONT_DEF_SET_SCORE (rfont_def, score); |
439 | score_changed = 1; | |
ea0162a6 | 440 | } |
6bad8007 | 441 | } |
1d5d7200 | 442 | |
581f7ac7 | 443 | if (score_changed) |
41ad6003 | 444 | qsort (XVECTOR (vec)->contents, size, sizeof (Lisp_Object), |
581f7ac7 | 445 | fontset_compare_rfontdef); |
41ad6003 KH |
446 | XSETCAR (font_group, make_number (charset_ordered_list_tick)); |
447 | } | |
448 | ||
f084f942 KH |
449 | /* Return a font-group (actually a cons (-1 . FONT-GROUP-VECTOR)) for |
450 | character C in FONTSET. If C is -1, return a fallback font-group. | |
451 | If C is not -1, the value may be Qt (FONTSET doesn't have a font | |
452 | for C even in the fallback group, or 0 (a font for C may be found | |
453 | only in the fallback group). */ | |
454 | ||
41ad6003 | 455 | static Lisp_Object |
3cba9369 | 456 | fontset_get_font_group (Lisp_Object fontset, int c) |
41ad6003 KH |
457 | { |
458 | Lisp_Object font_group; | |
459 | Lisp_Object base_fontset; | |
5b30be1a | 460 | int from = 0, to = MAX_CHAR, i; |
28e2436a | 461 | |
41ad6003 KH |
462 | xassert (! BASE_FONTSET_P (fontset)); |
463 | if (c >= 0) | |
464 | font_group = CHAR_TABLE_REF (fontset, c); | |
465 | else | |
466 | font_group = FONTSET_FALLBACK (fontset); | |
467 | if (! NILP (font_group)) | |
468 | return font_group; | |
469 | base_fontset = FONTSET_BASE (fontset); | |
470 | if (c >= 0) | |
471 | font_group = char_table_ref_and_range (base_fontset, c, &from, &to); | |
472 | else | |
473 | font_group = FONTSET_FALLBACK (base_fontset); | |
474 | if (NILP (font_group)) | |
f088b054 | 475 | { |
f084f942 | 476 | font_group = make_number (0); |
f088b054 | 477 | if (c >= 0) |
f084f942 KH |
478 | char_table_set_range (fontset, from, to, font_group); |
479 | return font_group; | |
f088b054 | 480 | } |
41ad6003 KH |
481 | font_group = Fcopy_sequence (font_group); |
482 | for (i = 0; i < ASIZE (font_group); i++) | |
483 | if (! NILP (AREF (font_group, i))) | |
484 | { | |
485 | Lisp_Object rfont_def; | |
486 | ||
487 | RFONT_DEF_NEW (rfont_def, AREF (font_group, i)); | |
488 | /* Remember the original order. */ | |
489 | RFONT_DEF_SET_SCORE (rfont_def, i); | |
490 | ASET (font_group, i, rfont_def); | |
491 | } | |
492 | font_group = Fcons (make_number (-1), font_group); | |
493 | if (c >= 0) | |
494 | char_table_set_range (fontset, from, to, font_group); | |
495 | else | |
496 | FONTSET_FALLBACK (fontset) = font_group; | |
497 | return font_group; | |
0d407d77 KH |
498 | } |
499 | ||
7e1a1cd9 | 500 | /* Return RFONT-DEF (vector) in the realized fontset FONTSET for the |
d67f7f1a KH |
501 | character C. If no font is found, return Qnil if there's a |
502 | possibility that the default fontset or the fallback font groups | |
503 | have a proper font, and return Qt if not. | |
504 | ||
505 | If a font is found but is not yet opened, open it (if FACE is not | |
506 | NULL) or return Qnil (if FACE is NULL). | |
507 | ||
1c82b4b3 KH |
508 | ID is a charset-id that must be preferred, or -1 meaning no |
509 | preference. | |
d67f7f1a | 510 | |
ea0162a6 | 511 | If FALLBACK is nonzero, search only fallback fonts. */ |
0d407d77 | 512 | |
7e1a1cd9 | 513 | static Lisp_Object |
971de7fb | 514 | fontset_find_font (Lisp_Object fontset, int c, struct face *face, int id, int fallback) |
0d407d77 | 515 | { |
162f5458 | 516 | Lisp_Object vec, font_group; |
374bf7e4 | 517 | int i, charset_matched = 0, found_index; |
2a1ef5be KH |
518 | FRAME_PTR f = (FRAMEP (FONTSET_FRAME (fontset)) |
519 | ? XFRAME (FONTSET_FRAME (fontset)) : XFRAME (selected_frame)); | |
a71ccf3a | 520 | Lisp_Object rfont_def; |
0d407d77 | 521 | |
41ad6003 KH |
522 | font_group = fontset_get_font_group (fontset, fallback ? -1 : c); |
523 | if (! CONSP (font_group)) | |
bf86d09c | 524 | return font_group; |
41ad6003 KH |
525 | vec = XCDR (font_group); |
526 | if (ASIZE (vec) == 0) | |
527 | return Qnil; | |
eaa0402c | 528 | |
41ad6003 | 529 | if (ASIZE (vec) > 1) |
1d5d7200 | 530 | { |
41ad6003 KH |
531 | if (XINT (XCAR (font_group)) != charset_ordered_list_tick) |
532 | /* We have just created the font-group, | |
533 | or the charset priorities were changed. */ | |
534 | reorder_font_vector (font_group, face->ascii_face->font); | |
535 | if (id >= 0) | |
536 | /* Find a spec matching with the charset ID to try at | |
537 | first. */ | |
538 | for (i = 0; i < ASIZE (vec); i++) | |
539 | { | |
0ff75233 KH |
540 | Lisp_Object repertory; |
541 | ||
a71ccf3a | 542 | rfont_def = AREF (vec, i); |
0ff75233 KH |
543 | if (NILP (rfont_def)) |
544 | break; | |
545 | repertory = FONT_DEF_REPERTORY (RFONT_DEF_FONT_DEF (rfont_def)); | |
41ad6003 KH |
546 | |
547 | if (XINT (repertory) == id) | |
eaa0402c | 548 | { |
41ad6003 | 549 | charset_matched = i; |
581f7ac7 | 550 | break; |
41ad6003 KH |
551 | } |
552 | } | |
581f7ac7 | 553 | } |
1d5d7200 | 554 | |
7e1a1cd9 | 555 | /* Find the first available font in the vector of RFONT-DEF. */ |
41ad6003 | 556 | for (i = 0; i < ASIZE (vec); i++) |
0d407d77 | 557 | { |
a71ccf3a | 558 | Lisp_Object font_def; |
dbf46ba6 | 559 | Lisp_Object font_entity, font_object; |
581f7ac7 | 560 | |
635c75b1 | 561 | found_index = i; |
374bf7e4 | 562 | if (i == 0) |
41ad6003 | 563 | { |
374bf7e4 KH |
564 | if (charset_matched > 0) |
565 | { | |
635c75b1 KH |
566 | /* Try the element matching with the charset ID at first. */ |
567 | found_index = charset_matched; | |
568 | /* Make this negative so that we don't come here in the | |
569 | next loop. */ | |
374bf7e4 | 570 | charset_matched = - charset_matched; |
635c75b1 | 571 | /* We must try the first element in the next loop. */ |
374bf7e4 KH |
572 | i--; |
573 | } | |
41ad6003 | 574 | } |
635c75b1 | 575 | else if (i == - charset_matched) |
374bf7e4 KH |
576 | { |
577 | /* We have already tried this element and the followings | |
635c75b1 KH |
578 | that have the same font specifications in the first |
579 | iteration. So, skip them all. */ | |
374bf7e4 KH |
580 | rfont_def = AREF (vec, i); |
581 | font_def = RFONT_DEF_FONT_DEF (rfont_def); | |
582 | for (; i + 1 < ASIZE (vec); i++) | |
583 | { | |
584 | rfont_def = AREF (vec, i + 1); | |
585 | if (NILP (rfont_def)) | |
586 | break; | |
587 | if (! EQ (RFONT_DEF_FONT_DEF (rfont_def), font_def)) | |
588 | break; | |
589 | } | |
590 | continue; | |
591 | } | |
41ad6003 | 592 | |
374bf7e4 | 593 | rfont_def = AREF (vec, found_index); |
162f5458 | 594 | if (NILP (rfont_def)) |
374bf7e4 | 595 | { |
635c75b1 | 596 | if (i < 0) |
374bf7e4 KH |
597 | continue; |
598 | /* This is a sign of not to try the other fonts. */ | |
599 | return Qt; | |
600 | } | |
162f5458 KH |
601 | if (INTEGERP (RFONT_DEF_FACE (rfont_def)) |
602 | && XINT (RFONT_DEF_FACE (rfont_def)) < 0) | |
1d5d7200 KH |
603 | /* We couldn't open this font last time. */ |
604 | continue; | |
605 | ||
162f5458 | 606 | font_object = RFONT_DEF_OBJECT (rfont_def); |
581f7ac7 | 607 | if (NILP (font_object)) |
8aa07a8d | 608 | { |
162f5458 | 609 | font_def = RFONT_DEF_FONT_DEF (rfont_def); |
d67f7f1a | 610 | |
581f7ac7 KH |
611 | if (! face) |
612 | /* We have not yet opened the font. */ | |
613 | return Qnil; | |
162f5458 KH |
614 | /* Find a font best-matching with the spec without checking |
615 | the support of the character C. That checking is costly, | |
616 | and even without the checking, the found font supports C | |
617 | in high possibility. */ | |
581f7ac7 KH |
618 | font_entity = font_find_for_lface (f, face->lface, |
619 | FONT_DEF_SPEC (font_def), -1); | |
d67f7f1a | 620 | if (NILP (font_entity)) |
8b67c40a | 621 | { |
581f7ac7 | 622 | /* Record that no font matches the spec. */ |
162f5458 | 623 | RFONT_DEF_SET_FACE (rfont_def, -1); |
581f7ac7 | 624 | continue; |
d67f7f1a | 625 | } |
ca2b2cde KH |
626 | font_object = font_open_for_lface (f, font_entity, face->lface, |
627 | FONT_DEF_SPEC (font_def)); | |
581f7ac7 | 628 | if (NILP (font_object)) |
d67f7f1a | 629 | { |
162f5458 KH |
630 | /* Something strange happened, perhaps because of a |
631 | Font-backend problem. Too avoid crashing, record | |
632 | that this spec is unsable. It may be better to find | |
633 | another font of the same spec, but currently we don't | |
634 | have such an API. */ | |
635 | RFONT_DEF_SET_FACE (rfont_def, -1); | |
581f7ac7 | 636 | continue; |
8aa07a8d | 637 | } |
162f5458 | 638 | RFONT_DEF_SET_OBJECT (rfont_def, font_object); |
8aa07a8d | 639 | } |
eb152aa9 | 640 | |
581f7ac7 | 641 | if (font_has_char (f, font_object, c)) |
a71ccf3a | 642 | goto found; |
581f7ac7 | 643 | |
162f5458 KH |
644 | /* Find a font already opened, maching with the current spec, |
645 | and supporting C. */ | |
646 | font_def = RFONT_DEF_FONT_DEF (rfont_def); | |
374bf7e4 | 647 | for (; found_index + 1 < ASIZE (vec); found_index++) |
57e13af9 | 648 | { |
374bf7e4 | 649 | rfont_def = AREF (vec, found_index + 1); |
7d72bb82 | 650 | if (NILP (rfont_def)) |
374bf7e4 | 651 | break; |
162f5458 | 652 | if (! EQ (RFONT_DEF_FONT_DEF (rfont_def), font_def)) |
581f7ac7 | 653 | break; |
374bf7e4 | 654 | font_object = RFONT_DEF_OBJECT (rfont_def); |
69a8e484 | 655 | if (! NILP (font_object) && font_has_char (f, font_object, c)) |
374bf7e4 KH |
656 | { |
657 | found_index++; | |
658 | goto found; | |
659 | } | |
57e13af9 | 660 | } |
162f5458 KH |
661 | |
662 | /* Find a font-entity with the current spec and supporting C. */ | |
581f7ac7 KH |
663 | font_entity = font_find_for_lface (f, face->lface, |
664 | FONT_DEF_SPEC (font_def), c); | |
665 | if (! NILP (font_entity)) | |
1d5d7200 | 666 | { |
162f5458 KH |
667 | /* We found a font. Open it and insert a new element for |
668 | that font in VEC. */ | |
669 | Lisp_Object new_vec; | |
581f7ac7 | 670 | int j; |
1d5d7200 | 671 | |
581f7ac7 KH |
672 | font_object = font_open_for_lface (f, font_entity, face->lface, |
673 | Qnil); | |
162f5458 KH |
674 | if (NILP (font_object)) |
675 | continue; | |
581f7ac7 KH |
676 | RFONT_DEF_NEW (rfont_def, font_def); |
677 | RFONT_DEF_SET_OBJECT (rfont_def, font_object); | |
162f5458 | 678 | RFONT_DEF_SET_SCORE (rfont_def, RFONT_DEF_SCORE (rfont_def)); |
581f7ac7 | 679 | new_vec = Fmake_vector (make_number (ASIZE (vec) + 1), Qnil); |
374bf7e4 KH |
680 | found_index++; |
681 | for (j = 0; j < found_index; j++) | |
581f7ac7 KH |
682 | ASET (new_vec, j, AREF (vec, j)); |
683 | ASET (new_vec, j, rfont_def); | |
684 | for (j++; j < ASIZE (new_vec); j++) | |
685 | ASET (new_vec, j, AREF (vec, j - 1)); | |
162f5458 | 686 | XSETCDR (font_group, new_vec); |
a71ccf3a KH |
687 | vec = new_vec; |
688 | goto found; | |
1d5d7200 | 689 | } |
374bf7e4 KH |
690 | if (i >= 0) |
691 | i = found_index; | |
0d407d77 | 692 | } |
d67f7f1a | 693 | |
581f7ac7 | 694 | FONTSET_SET (fontset, make_number (c), make_number (0)); |
eaa0402c | 695 | return Qnil; |
a71ccf3a KH |
696 | |
697 | found: | |
698 | if (fallback && found_index > 0) | |
699 | { | |
700 | /* The order of fonts in the fallback font-group is not that | |
701 | important, and it is better to move the found font to the | |
702 | first of the group so that the next try will find it | |
703 | quickly. */ | |
704 | for (i = found_index; i > 0; i--) | |
705 | ASET (vec, i, AREF (vec, i - 1)); | |
706 | ASET (vec, 0, rfont_def); | |
707 | } | |
708 | return rfont_def; | |
1c82b4b3 | 709 | } |
0d407d77 | 710 | |
cc7b6145 | 711 | |
1c82b4b3 | 712 | static Lisp_Object |
971de7fb | 713 | fontset_font (Lisp_Object fontset, int c, struct face *face, int id) |
1c82b4b3 | 714 | { |
cc6e5db1 | 715 | Lisp_Object rfont_def, default_rfont_def IF_LINT (= Qnil); |
1c82b4b3 | 716 | Lisp_Object base_fontset; |
cc7b6145 | 717 | |
41ad6003 | 718 | /* Try a font-group of FONTSET. */ |
b23bf85a | 719 | FONT_DEFERRED_LOG ("current fontset: font for", make_number (c), Qnil); |
1c82b4b3 | 720 | rfont_def = fontset_find_font (fontset, c, face, id, 0); |
eaa0402c KH |
721 | if (VECTORP (rfont_def)) |
722 | return rfont_def; | |
f084f942 KH |
723 | if (NILP (rfont_def)) |
724 | FONTSET_SET (fontset, make_number (c), make_number (0)); | |
41ad6003 KH |
725 | |
726 | /* Try a font-group of the default fontset. */ | |
727 | base_fontset = FONTSET_BASE (fontset); | |
728 | if (! EQ (base_fontset, Vdefault_fontset)) | |
729 | { | |
730 | if (NILP (FONTSET_DEFAULT (fontset))) | |
731 | FONTSET_DEFAULT (fontset) | |
732 | = make_fontset (FONTSET_FRAME (fontset), Qnil, Vdefault_fontset); | |
b23bf85a | 733 | FONT_DEFERRED_LOG ("default fontset: font for", make_number (c), Qnil); |
f084f942 KH |
734 | default_rfont_def |
735 | = fontset_find_font (FONTSET_DEFAULT (fontset), c, face, id, 0); | |
736 | if (VECTORP (default_rfont_def)) | |
737 | return default_rfont_def; | |
738 | if (NILP (default_rfont_def)) | |
739 | FONTSET_SET (FONTSET_DEFAULT (fontset), make_number (c), | |
740 | make_number (0)); | |
41ad6003 KH |
741 | } |
742 | ||
743 | /* Try a fallback font-group of FONTSET. */ | |
f084f942 KH |
744 | if (! EQ (rfont_def, Qt)) |
745 | { | |
746 | FONT_DEFERRED_LOG ("current fallback: font for", make_number (c), Qnil); | |
747 | rfont_def = fontset_find_font (fontset, c, face, id, 1); | |
748 | if (VECTORP (rfont_def)) | |
749 | return rfont_def; | |
750 | /* Remember that FONTSET has no font for C. */ | |
751 | FONTSET_SET (fontset, make_number (c), Qt); | |
752 | } | |
d67f7f1a | 753 | |
f084f942 KH |
754 | /* Try a fallback font-group of the default fontset. */ |
755 | if (! EQ (base_fontset, Vdefault_fontset) | |
756 | && ! EQ (default_rfont_def, Qt)) | |
41ad6003 | 757 | { |
b23bf85a | 758 | FONT_DEFERRED_LOG ("default fallback: font for", make_number (c), Qnil); |
41ad6003 KH |
759 | rfont_def = fontset_find_font (FONTSET_DEFAULT (fontset), c, face, id, 1); |
760 | if (VECTORP (rfont_def)) | |
761 | return rfont_def; | |
f084f942 KH |
762 | /* Remember that the default fontset has no font for C. */ |
763 | FONTSET_SET (FONTSET_DEFAULT (fontset), make_number (c), Qt); | |
41ad6003 KH |
764 | } |
765 | ||
41ad6003 | 766 | return Qnil; |
0d407d77 KH |
767 | } |
768 | ||
0d407d77 | 769 | /* Return a newly created fontset with NAME. If BASE is nil, make a |
06f76f0d | 770 | base fontset. Otherwise make a realized fontset whose base is |
0d407d77 KH |
771 | BASE. */ |
772 | ||
773 | static Lisp_Object | |
971de7fb | 774 | make_fontset (Lisp_Object frame, Lisp_Object name, Lisp_Object base) |
4ed46869 | 775 | { |
1337ac77 | 776 | Lisp_Object fontset; |
0d407d77 KH |
777 | int size = ASIZE (Vfontset_table); |
778 | int id = next_fontset_id; | |
0d407d77 KH |
779 | |
780 | /* Find a free slot in Vfontset_table. Usually, next_fontset_id is | |
781 | the next available fontset ID. So it is expected that this loop | |
782 | terminates quickly. In addition, as the last element of | |
fc8865fc | 783 | Vfontset_table is always nil, we don't have to check the range of |
0d407d77 KH |
784 | id. */ |
785 | while (!NILP (AREF (Vfontset_table, id))) id++; | |
786 | ||
787 | if (id + 1 == size) | |
63655c83 | 788 | Vfontset_table = larger_vector (Vfontset_table, size + 32, Qnil); |
4ed46869 | 789 | |
11d9bd93 | 790 | fontset = Fmake_char_table (Qfontset, Qnil); |
0d407d77 KH |
791 | |
792 | FONTSET_ID (fontset) = make_number (id); | |
06f76f0d KH |
793 | if (NILP (base)) |
794 | { | |
795 | FONTSET_NAME (fontset) = name; | |
796 | } | |
797 | else | |
798 | { | |
799 | FONTSET_NAME (fontset) = Qnil; | |
800 | FONTSET_FRAME (fontset) = frame; | |
801 | FONTSET_BASE (fontset) = base; | |
802 | } | |
0d407d77 | 803 | |
06f76f0d | 804 | ASET (Vfontset_table, id, fontset); |
0d407d77 KH |
805 | next_fontset_id = id + 1; |
806 | return fontset; | |
4ed46869 KH |
807 | } |
808 | ||
0d407d77 | 809 | \f |
1d5d7200 | 810 | /********** INTERFACES TO xfaces.c, xfns.c, and dispextern.h **********/ |
0d407d77 | 811 | |
1d5d7200 | 812 | /* Return the name of the fontset who has ID. */ |
0d407d77 KH |
813 | |
814 | Lisp_Object | |
971de7fb | 815 | fontset_name (int id) |
0d407d77 KH |
816 | { |
817 | Lisp_Object fontset; | |
06f76f0d | 818 | |
0d407d77 KH |
819 | fontset = FONTSET_FROM_ID (id); |
820 | return FONTSET_NAME (fontset); | |
821 | } | |
822 | ||
823 | ||
1d5d7200 | 824 | /* Return the ASCII font name of the fontset who has ID. */ |
0d407d77 KH |
825 | |
826 | Lisp_Object | |
971de7fb | 827 | fontset_ascii (int id) |
0d407d77 KH |
828 | { |
829 | Lisp_Object fontset, elt; | |
06f76f0d | 830 | |
0d407d77 KH |
831 | fontset= FONTSET_FROM_ID (id); |
832 | elt = FONTSET_ASCII (fontset); | |
8aa07a8d KH |
833 | if (CONSP (elt)) |
834 | elt = XCAR (elt); | |
1d5d7200 | 835 | return elt; |
0d407d77 KH |
836 | } |
837 | ||
a5c0af81 | 838 | static void |
971de7fb | 839 | free_realized_fontset (FRAME_PTR f, Lisp_Object fontset) |
9459b1e9 | 840 | { |
9459b1e9 KH |
841 | Lisp_Object tail; |
842 | ||
97be3ce3 PE |
843 | if (0) |
844 | for (tail = FONTSET_OBJLIST (fontset); CONSP (tail); tail = XCDR (tail)) | |
845 | { | |
846 | xassert (FONT_OBJECT_P (XCAR (tail))); | |
847 | font_close_object (f, XCAR (tail)); | |
848 | } | |
9459b1e9 | 849 | } |
0d407d77 | 850 | |
06f76f0d KH |
851 | /* Free fontset of FACE defined on frame F. Called from |
852 | free_realized_face. */ | |
0d407d77 | 853 | |
4ed46869 | 854 | void |
971de7fb | 855 | free_face_fontset (FRAME_PTR f, struct face *face) |
4ed46869 | 856 | { |
452a78e0 KH |
857 | Lisp_Object fontset; |
858 | ||
ff7a2223 | 859 | fontset = FONTSET_FROM_ID (face->fontset); |
581f7ac7 KH |
860 | if (NILP (fontset)) |
861 | return; | |
862 | xassert (! BASE_FONTSET_P (fontset)); | |
452a78e0 | 863 | xassert (f == XFRAME (FONTSET_FRAME (fontset))); |
9459b1e9 | 864 | free_realized_fontset (f, fontset); |
1d5d7200 | 865 | ASET (Vfontset_table, face->fontset, Qnil); |
06f76f0d KH |
866 | if (face->fontset < next_fontset_id) |
867 | next_fontset_id = face->fontset; | |
eb36588a | 868 | if (! NILP (FONTSET_DEFAULT (fontset))) |
452a78e0 | 869 | { |
e1a14cdc | 870 | int id = XINT (FONTSET_ID (FONTSET_DEFAULT (fontset))); |
eb152aa9 | 871 | |
452a78e0 KH |
872 | fontset = AREF (Vfontset_table, id); |
873 | xassert (!NILP (fontset) && ! BASE_FONTSET_P (fontset)); | |
874 | xassert (f == XFRAME (FONTSET_FRAME (fontset))); | |
9459b1e9 | 875 | free_realized_fontset (f, fontset); |
452a78e0 KH |
876 | ASET (Vfontset_table, id, Qnil); |
877 | if (id < next_fontset_id) | |
878 | next_fontset_id = face->fontset; | |
879 | } | |
581f7ac7 | 880 | face->fontset = -1; |
0d407d77 | 881 | } |
18998710 | 882 | |
0d407d77 | 883 | |
e0f24100 | 884 | /* Return 1 if FACE is suitable for displaying character C. |
0d407d77 | 885 | Otherwise return 0. Called from the macro FACE_SUITABLE_FOR_CHAR_P |
06f76f0d | 886 | when C is not an ASCII character. */ |
0d407d77 KH |
887 | |
888 | int | |
971de7fb | 889 | face_suitable_for_char_p (struct face *face, int c) |
0d407d77 | 890 | { |
7e1a1cd9 | 891 | Lisp_Object fontset, rfont_def; |
0d407d77 | 892 | |
0d407d77 | 893 | fontset = FONTSET_FROM_ID (face->fontset); |
7e1a1cd9 KH |
894 | rfont_def = fontset_font (fontset, c, NULL, -1); |
895 | return (VECTORP (rfont_def) | |
581f7ac7 KH |
896 | && INTEGERP (RFONT_DEF_FACE (rfont_def)) |
897 | && face->id == XINT (RFONT_DEF_FACE (rfont_def))); | |
0d407d77 KH |
898 | } |
899 | ||
900 | ||
901 | /* Return ID of face suitable for displaying character C on frame F. | |
1d5d7200 KH |
902 | FACE must be reazlied for ASCII characters in advance. Called from |
903 | the macro FACE_FOR_CHAR. */ | |
0d407d77 KH |
904 | |
905 | int | |
971de7fb | 906 | face_for_char (FRAME_PTR f, struct face *face, int c, int pos, Lisp_Object object) |
0d407d77 | 907 | { |
303d5190 | 908 | Lisp_Object fontset, rfont_def, charset; |
7e1a1cd9 | 909 | int face_id; |
6bad8007 | 910 | int id; |
1d5d7200 | 911 | |
ea217c11 KH |
912 | /* If face->fontset is negative (that happens when no font is found |
913 | for face), just return face->ascii_face because we can't do | |
914 | anything. Perhaps, we should fix the callers to assure | |
915 | that face->fontset is always valid. */ | |
916 | if (ASCII_CHAR_P (c) || face->fontset < 0) | |
1d5d7200 | 917 | return face->ascii_face->id; |
0d407d77 KH |
918 | |
919 | xassert (fontset_id_valid_p (face->fontset)); | |
920 | fontset = FONTSET_FROM_ID (face->fontset); | |
921 | xassert (!BASE_FONTSET_P (fontset)); | |
41ad6003 | 922 | |
6bad8007 | 923 | if (pos < 0) |
303d5190 KH |
924 | { |
925 | id = -1; | |
926 | charset = Qnil; | |
927 | } | |
6bad8007 KH |
928 | else |
929 | { | |
930 | charset = Fget_char_property (make_number (pos), Qcharset, object); | |
b1bde622 | 931 | if (CHARSETP (charset)) |
28e2436a KH |
932 | { |
933 | Lisp_Object val; | |
934 | ||
a124bbb6 | 935 | val = assq_no_quit (charset, Vfont_encoding_charset_alist); |
28e2436a KH |
936 | if (CONSP (val) && CHARSETP (XCDR (val))) |
937 | charset = XCDR (val); | |
938 | id = XINT (CHARSET_SYMBOL_ID (charset)); | |
939 | } | |
b1bde622 KH |
940 | else |
941 | id = -1; | |
6bad8007 | 942 | } |
b59e66b3 | 943 | |
7e1a1cd9 KH |
944 | rfont_def = fontset_font (fontset, c, face, id); |
945 | if (VECTORP (rfont_def)) | |
946 | { | |
581f7ac7 KH |
947 | if (INTEGERP (RFONT_DEF_FACE (rfont_def))) |
948 | face_id = XINT (RFONT_DEF_FACE (rfont_def)); | |
8aa07a8d | 949 | else |
7e1a1cd9 | 950 | { |
581f7ac7 | 951 | Lisp_Object font_object; |
7e1a1cd9 | 952 | |
581f7ac7 KH |
953 | font_object = RFONT_DEF_OBJECT (rfont_def); |
954 | face_id = face_for_font (f, font_object, face); | |
955 | RFONT_DEF_SET_FACE (rfont_def, face_id); | |
7e1a1cd9 | 956 | } |
7e1a1cd9 | 957 | } |
581f7ac7 | 958 | else |
7e1a1cd9 | 959 | { |
581f7ac7 KH |
960 | if (INTEGERP (FONTSET_NOFONT_FACE (fontset))) |
961 | face_id = XINT (FONTSET_NOFONT_FACE (fontset)); | |
962 | else | |
963 | { | |
964 | face_id = face_for_font (f, Qnil, face); | |
965 | FONTSET_NOFONT_FACE (fontset) = make_number (face_id); | |
966 | } | |
7e1a1cd9 | 967 | } |
581f7ac7 KH |
968 | xassert (face_id >= 0); |
969 | return face_id; | |
0d407d77 KH |
970 | } |
971 | ||
972 | ||
514cf218 | 973 | Lisp_Object |
971de7fb | 974 | font_for_char (struct face *face, int c, int pos, Lisp_Object object) |
514cf218 KH |
975 | { |
976 | Lisp_Object fontset, rfont_def, charset; | |
514cf218 KH |
977 | int id; |
978 | ||
979 | if (ASCII_CHAR_P (c)) | |
980 | { | |
981 | Lisp_Object font_object; | |
982 | ||
983 | XSETFONT (font_object, face->ascii_face->font); | |
984 | return font_object; | |
985 | } | |
986 | ||
987 | xassert (fontset_id_valid_p (face->fontset)); | |
988 | fontset = FONTSET_FROM_ID (face->fontset); | |
989 | xassert (!BASE_FONTSET_P (fontset)); | |
990 | if (pos < 0) | |
991 | { | |
992 | id = -1; | |
993 | charset = Qnil; | |
994 | } | |
995 | else | |
996 | { | |
997 | charset = Fget_char_property (make_number (pos), Qcharset, object); | |
b1bde622 | 998 | if (CHARSETP (charset)) |
514cf218 KH |
999 | { |
1000 | Lisp_Object val; | |
1001 | ||
9fe78804 | 1002 | val = assq_no_quit (charset, Vfont_encoding_charset_alist); |
514cf218 KH |
1003 | if (CONSP (val) && CHARSETP (XCDR (val))) |
1004 | charset = XCDR (val); | |
1005 | id = XINT (CHARSET_SYMBOL_ID (charset)); | |
1006 | } | |
b1bde622 KH |
1007 | else |
1008 | id = -1; | |
514cf218 KH |
1009 | } |
1010 | ||
514cf218 KH |
1011 | rfont_def = fontset_font (fontset, c, face, id); |
1012 | return (VECTORP (rfont_def) | |
1013 | ? RFONT_DEF_OBJECT (rfont_def) | |
1014 | : Qnil); | |
1015 | } | |
1016 | ||
1017 | ||
0d407d77 KH |
1018 | /* Make a realized fontset for ASCII face FACE on frame F from the |
1019 | base fontset BASE_FONTSET_ID. If BASE_FONTSET_ID is -1, use the | |
1020 | default fontset as the base. Value is the id of the new fontset. | |
1021 | Called from realize_x_face. */ | |
1022 | ||
1023 | int | |
971de7fb | 1024 | make_fontset_for_ascii_face (FRAME_PTR f, int base_fontset_id, struct face *face) |
0d407d77 | 1025 | { |
1337ac77 | 1026 | Lisp_Object base_fontset, fontset, frame; |
0d407d77 KH |
1027 | |
1028 | XSETFRAME (frame, f); | |
1029 | if (base_fontset_id >= 0) | |
1030 | { | |
1031 | base_fontset = FONTSET_FROM_ID (base_fontset_id); | |
1032 | if (!BASE_FONTSET_P (base_fontset)) | |
1033 | base_fontset = FONTSET_BASE (base_fontset); | |
1d5d7200 KH |
1034 | if (! BASE_FONTSET_P (base_fontset)) |
1035 | abort (); | |
4ed46869 | 1036 | } |
0d407d77 KH |
1037 | else |
1038 | base_fontset = Vdefault_fontset; | |
1039 | ||
1040 | fontset = make_fontset (frame, Qnil, base_fontset); | |
f3231837 | 1041 | return XINT (FONTSET_ID (fontset)); |
0d407d77 KH |
1042 | } |
1043 | ||
0d407d77 | 1044 | \f |
1d5d7200 | 1045 | |
4ed46869 KH |
1046 | /* Cache data used by fontset_pattern_regexp. The car part is a |
1047 | pattern string containing at least one wild card, the cdr part is | |
1048 | the corresponding regular expression. */ | |
1049 | static Lisp_Object Vcached_fontset_data; | |
1050 | ||
51b59d79 | 1051 | #define CACHED_FONTSET_NAME SSDATA (XCAR (Vcached_fontset_data)) |
7539e11f | 1052 | #define CACHED_FONTSET_REGEX (XCDR (Vcached_fontset_data)) |
4ed46869 KH |
1053 | |
1054 | /* If fontset name PATTERN contains any wild card, return regular | |
1055 | expression corresponding to PATTERN. */ | |
1056 | ||
0d407d77 | 1057 | static Lisp_Object |
971de7fb | 1058 | fontset_pattern_regexp (Lisp_Object pattern) |
4ed46869 | 1059 | { |
51b59d79 PE |
1060 | if (!strchr (SSDATA (pattern), '*') |
1061 | && !strchr (SSDATA (pattern), '?')) | |
4ed46869 | 1062 | /* PATTERN does not contain any wild cards. */ |
1c283e35 | 1063 | return Qnil; |
4ed46869 KH |
1064 | |
1065 | if (!CONSP (Vcached_fontset_data) | |
51b59d79 | 1066 | || strcmp (SSDATA (pattern), CACHED_FONTSET_NAME)) |
4ed46869 KH |
1067 | { |
1068 | /* We must at first update the cached data. */ | |
6cc06608 | 1069 | unsigned char *regex, *p0, *p1; |
821bc4db | 1070 | int ndashes = 0, nstars = 0, nescs = 0; |
6cc06608 | 1071 | |
fc1062f5 KH |
1072 | for (p0 = SDATA (pattern); *p0; p0++) |
1073 | { | |
1074 | if (*p0 == '-') | |
1075 | ndashes++; | |
a653f812 | 1076 | else if (*p0 == '*') |
fc1062f5 | 1077 | nstars++; |
821bc4db KH |
1078 | else if (*p0 == '[' |
1079 | || *p0 == '.' || *p0 == '\\' | |
8510724d | 1080 | || *p0 == '+' || *p0 == '^' |
821bc4db KH |
1081 | || *p0 == '$') |
1082 | nescs++; | |
fc1062f5 KH |
1083 | } |
1084 | ||
1085 | /* If PATTERN is not full XLFD we conert "*" to ".*". Otherwise | |
1086 | we convert "*" to "[^-]*" which is much faster in regular | |
1087 | expression matching. */ | |
1088 | if (ndashes < 14) | |
821bc4db | 1089 | p1 = regex = (unsigned char *) alloca (SBYTES (pattern) + 2 * nstars + 2 * nescs + 1); |
fc1062f5 | 1090 | else |
821bc4db | 1091 | p1 = regex = (unsigned char *) alloca (SBYTES (pattern) + 5 * nstars + 2 * nescs + 1); |
4ed46869 | 1092 | |
1c283e35 | 1093 | *p1++ = '^'; |
6cc06608 | 1094 | for (p0 = SDATA (pattern); *p0; p0++) |
4ed46869 | 1095 | { |
a653f812 | 1096 | if (*p0 == '*') |
4ed46869 | 1097 | { |
fc1062f5 KH |
1098 | if (ndashes < 14) |
1099 | *p1++ = '.'; | |
1100 | else | |
1101 | *p1++ = '[', *p1++ = '^', *p1++ = '-', *p1++ = ']'; | |
1c283e35 | 1102 | *p1++ = '*'; |
4ed46869 | 1103 | } |
1c283e35 | 1104 | else if (*p0 == '?') |
d96d677d | 1105 | *p1++ = '.'; |
821bc4db KH |
1106 | else if (*p0 == '[' |
1107 | || *p0 == '.' || *p0 == '\\' | |
8510724d | 1108 | || *p0 == '+' || *p0 == '^' |
821bc4db KH |
1109 | || *p0 == '$') |
1110 | *p1++ = '\\', *p1++ = *p0; | |
1c283e35 KH |
1111 | else |
1112 | *p1++ = *p0; | |
4ed46869 KH |
1113 | } |
1114 | *p1++ = '$'; | |
1115 | *p1++ = 0; | |
1116 | ||
51b59d79 | 1117 | Vcached_fontset_data = Fcons (build_string (SSDATA (pattern)), |
dbf46ba6 | 1118 | build_string ((char *) regex)); |
4ed46869 KH |
1119 | } |
1120 | ||
1121 | return CACHED_FONTSET_REGEX; | |
1122 | } | |
1123 | ||
0d407d77 | 1124 | /* Return ID of the base fontset named NAME. If there's no such |
a653f812 KH |
1125 | fontset, return -1. NAME_PATTERN specifies how to treat NAME as this: |
1126 | 0: pattern containing '*' and '?' as wildcards | |
1127 | 1: regular expression | |
1128 | 2: literal fontset name | |
1129 | */ | |
0d407d77 KH |
1130 | |
1131 | int | |
971de7fb | 1132 | fs_query_fontset (Lisp_Object name, int name_pattern) |
0d407d77 | 1133 | { |
1337ac77 | 1134 | Lisp_Object tem; |
0d407d77 KH |
1135 | int i; |
1136 | ||
1137 | name = Fdowncase (name); | |
a653f812 | 1138 | if (name_pattern != 1) |
0d407d77 KH |
1139 | { |
1140 | tem = Frassoc (name, Vfontset_alias_alist); | |
6bad8007 KH |
1141 | if (NILP (tem)) |
1142 | tem = Fassoc (name, Vfontset_alias_alist); | |
0d407d77 KH |
1143 | if (CONSP (tem) && STRINGP (XCAR (tem))) |
1144 | name = XCAR (tem); | |
a653f812 | 1145 | else if (name_pattern == 0) |
0d407d77 KH |
1146 | { |
1147 | tem = fontset_pattern_regexp (name); | |
1148 | if (STRINGP (tem)) | |
1149 | { | |
1150 | name = tem; | |
a653f812 | 1151 | name_pattern = 1; |
0d407d77 KH |
1152 | } |
1153 | } | |
1154 | } | |
1155 | ||
1156 | for (i = 0; i < ASIZE (Vfontset_table); i++) | |
1157 | { | |
6e1b0d8c | 1158 | Lisp_Object fontset, this_name; |
0d407d77 KH |
1159 | |
1160 | fontset = FONTSET_FROM_ID (i); | |
1161 | if (NILP (fontset) | |
1162 | || !BASE_FONTSET_P (fontset)) | |
1163 | continue; | |
1164 | ||
6e1b0d8c | 1165 | this_name = FONTSET_NAME (fontset); |
a653f812 | 1166 | if (name_pattern == 1 |
581f7ac7 | 1167 | ? fast_string_match_ignore_case (name, this_name) >= 0 |
25a48bd0 | 1168 | : !xstrcasecmp (SSDATA (name), SSDATA (this_name))) |
0d407d77 KH |
1169 | return i; |
1170 | } | |
1171 | return -1; | |
1172 | } | |
1173 | ||
1174 | ||
16a97296 | 1175 | DEFUE ("query-fontset", Fquery_fontset, Squery_fontset, 1, 2, 0, |
335c5470 PJ |
1176 | doc: /* Return the name of a fontset that matches PATTERN. |
1177 | The value is nil if there is no matching fontset. | |
1178 | PATTERN can contain `*' or `?' as a wildcard | |
1179 | just as X font name matching algorithm allows. | |
1180 | If REGEXPP is non-nil, PATTERN is a regular expression. */) | |
5842a27b | 1181 | (Lisp_Object pattern, Lisp_Object regexpp) |
4ed46869 | 1182 | { |
0d407d77 KH |
1183 | Lisp_Object fontset; |
1184 | int id; | |
4ed46869 KH |
1185 | |
1186 | (*check_window_system_func) (); | |
1187 | ||
b7826503 | 1188 | CHECK_STRING (pattern); |
4ed46869 | 1189 | |
d5db4077 | 1190 | if (SCHARS (pattern) == 0) |
4ed46869 KH |
1191 | return Qnil; |
1192 | ||
0d407d77 KH |
1193 | id = fs_query_fontset (pattern, !NILP (regexpp)); |
1194 | if (id < 0) | |
1195 | return Qnil; | |
4ed46869 | 1196 | |
0d407d77 KH |
1197 | fontset = FONTSET_FROM_ID (id); |
1198 | return FONTSET_NAME (fontset); | |
4ed46869 KH |
1199 | } |
1200 | ||
06f76f0d | 1201 | /* Return a list of base fontset names matching PATTERN on frame F. */ |
4ed46869 KH |
1202 | |
1203 | Lisp_Object | |
971de7fb | 1204 | list_fontsets (FRAME_PTR f, Lisp_Object pattern, int size) |
4ed46869 | 1205 | { |
1337ac77 | 1206 | Lisp_Object frame, regexp, val; |
0d407d77 | 1207 | int id; |
4ed46869 | 1208 | |
0d407d77 | 1209 | XSETFRAME (frame, f); |
4ed46869 | 1210 | |
0d407d77 | 1211 | regexp = fontset_pattern_regexp (pattern); |
4ed46869 | 1212 | val = Qnil; |
4ed46869 | 1213 | |
0d407d77 KH |
1214 | for (id = 0; id < ASIZE (Vfontset_table); id++) |
1215 | { | |
6e1b0d8c | 1216 | Lisp_Object fontset, name; |
0d407d77 KH |
1217 | |
1218 | fontset = FONTSET_FROM_ID (id); | |
1219 | if (NILP (fontset) | |
1220 | || !BASE_FONTSET_P (fontset) | |
1221 | || !EQ (frame, FONTSET_FRAME (fontset))) | |
1222 | continue; | |
6e1b0d8c | 1223 | name = FONTSET_NAME (fontset); |
0d407d77 | 1224 | |
1d5d7200 | 1225 | if (STRINGP (regexp) |
6e1b0d8c | 1226 | ? (fast_string_match (regexp, name) < 0) |
51b59d79 | 1227 | : strcmp (SSDATA (pattern), SSDATA (name))) |
0d407d77 KH |
1228 | continue; |
1229 | ||
0d407d77 | 1230 | val = Fcons (Fcopy_sequence (FONTSET_NAME (fontset)), val); |
4ed46869 KH |
1231 | } |
1232 | ||
1233 | return val; | |
1234 | } | |
1235 | ||
4ed46869 | 1236 | |
8f924df7 | 1237 | /* Free all realized fontsets whose base fontset is BASE. */ |
4ed46869 | 1238 | |
06f76f0d | 1239 | static void |
971de7fb | 1240 | free_realized_fontsets (Lisp_Object base) |
06f76f0d KH |
1241 | { |
1242 | int id; | |
4ed46869 | 1243 | |
2f034212 | 1244 | #if 0 |
27e20b2f KH |
1245 | /* For the moment, this doesn't work because free_realized_face |
1246 | doesn't remove FACE from a cache. Until we find a solution, we | |
1247 | suppress this code, and simply use Fclear_face_cache even though | |
1248 | that is not efficient. */ | |
06f76f0d KH |
1249 | BLOCK_INPUT; |
1250 | for (id = 0; id < ASIZE (Vfontset_table); id++) | |
4ed46869 | 1251 | { |
06f76f0d | 1252 | Lisp_Object this = AREF (Vfontset_table, id); |
0d407d77 | 1253 | |
06f76f0d | 1254 | if (EQ (FONTSET_BASE (this), base)) |
0d407d77 | 1255 | { |
06f76f0d | 1256 | Lisp_Object tail; |
4ed46869 | 1257 | |
06f76f0d KH |
1258 | for (tail = FONTSET_FACE_ALIST (this); CONSP (tail); |
1259 | tail = XCDR (tail)) | |
1260 | { | |
1261 | FRAME_PTR f = XFRAME (FONTSET_FRAME (this)); | |
1262 | int face_id = XINT (XCDR (XCAR (tail))); | |
1263 | struct face *face = FACE_FROM_ID (f, face_id); | |
4ed46869 | 1264 | |
06f76f0d KH |
1265 | /* Face THIS itself is also freed by the following call. */ |
1266 | free_realized_face (f, face); | |
1267 | } | |
1268 | } | |
0d407d77 | 1269 | } |
06f76f0d | 1270 | UNBLOCK_INPUT; |
27e20b2f | 1271 | #else /* not 0 */ |
2f034212 KH |
1272 | /* But, we don't have to call Fclear_face_cache if no fontset has |
1273 | been realized from BASE. */ | |
1274 | for (id = 0; id < ASIZE (Vfontset_table); id++) | |
1275 | { | |
1276 | Lisp_Object this = AREF (Vfontset_table, id); | |
1277 | ||
985773c9 | 1278 | if (CHAR_TABLE_P (this) && EQ (FONTSET_BASE (this), base)) |
2f034212 KH |
1279 | { |
1280 | Fclear_face_cache (Qt); | |
1281 | break; | |
1282 | } | |
1283 | } | |
27e20b2f | 1284 | #endif /* not 0 */ |
0d407d77 | 1285 | } |
4ed46869 | 1286 | |
4ed46869 | 1287 | |
0d407d77 KH |
1288 | /* Check validity of NAME as a fontset name and return the |
1289 | corresponding fontset. If not valid, signal an error. | |
a3d16f39 KH |
1290 | |
1291 | If NAME is t, return Vdefault_fontset. If NAME is nil, return the | |
1292 | fontset of *FRAME. | |
1293 | ||
1294 | Set *FRAME to the actual frame. */ | |
0d407d77 KH |
1295 | |
1296 | static Lisp_Object | |
971de7fb | 1297 | check_fontset_name (Lisp_Object name, Lisp_Object *frame) |
0d407d77 KH |
1298 | { |
1299 | int id; | |
1300 | ||
a3d16f39 KH |
1301 | if (NILP (*frame)) |
1302 | *frame = selected_frame; | |
1303 | CHECK_LIVE_FRAME (*frame); | |
1304 | ||
0d407d77 KH |
1305 | if (EQ (name, Qt)) |
1306 | return Vdefault_fontset; | |
a3d16f39 KH |
1307 | if (NILP (name)) |
1308 | { | |
1309 | id = FRAME_FONTSET (XFRAME (*frame)); | |
1310 | } | |
1311 | else | |
1312 | { | |
1313 | CHECK_STRING (name); | |
1314 | /* First try NAME as literal. */ | |
1315 | id = fs_query_fontset (name, 2); | |
1316 | if (id < 0) | |
1317 | /* For backward compatibility, try again NAME as pattern. */ | |
1318 | id = fs_query_fontset (name, 0); | |
1319 | if (id < 0) | |
1320 | error ("Fontset `%s' does not exist", SDATA (name)); | |
1321 | } | |
0d407d77 KH |
1322 | return FONTSET_FROM_ID (id); |
1323 | } | |
4ed46869 | 1324 | |
1d5d7200 | 1325 | static void |
971de7fb | 1326 | accumulate_script_ranges (Lisp_Object arg, Lisp_Object range, Lisp_Object val) |
1d5d7200 KH |
1327 | { |
1328 | if (EQ (XCAR (arg), val)) | |
1329 | { | |
1330 | if (CONSP (range)) | |
1331 | XSETCDR (arg, Fcons (Fcons (XCAR (range), XCDR (range)), XCDR (arg))); | |
1332 | else | |
1333 | XSETCDR (arg, Fcons (Fcons (range, range), XCDR (arg))); | |
1334 | } | |
1335 | } | |
1336 | ||
1337 | ||
a3d16f39 KH |
1338 | /* Callback function for map_charset_chars in Fset_fontset_font. |
1339 | ARG is a vector [ FONTSET FONT_DEF ADD ASCII SCRIPT_RANGE_LIST ]. | |
fb78e2ed | 1340 | |
a3d16f39 KH |
1341 | In FONTSET, set FONT_DEF in a fashion specified by ADD for |
1342 | characters in RANGE and ranges in SCRIPT_RANGE_LIST before RANGE. | |
1343 | The consumed ranges are poped up from SCRIPT_RANGE_LIST, and the | |
1344 | new SCRIPT_RANGE_LIST is stored in ARG. | |
1345 | ||
1346 | If ASCII is nil, don't set FONT_DEF for ASCII characters. It is | |
1347 | assured that SCRIPT_RANGE_LIST doesn't contain ASCII in that | |
1348 | case. */ | |
fb78e2ed | 1349 | |
2449d4d0 | 1350 | static void |
971de7fb | 1351 | set_fontset_font (Lisp_Object arg, Lisp_Object range) |
2449d4d0 | 1352 | { |
a3d16f39 KH |
1353 | Lisp_Object fontset, font_def, add, ascii, script_range_list; |
1354 | int from = XINT (XCAR (range)), to = XINT (XCDR (range)); | |
2449d4d0 | 1355 | |
a3d16f39 KH |
1356 | fontset = AREF (arg, 0); |
1357 | font_def = AREF (arg, 1); | |
1358 | add = AREF (arg, 2); | |
1359 | ascii = AREF (arg, 3); | |
1360 | script_range_list = AREF (arg, 4); | |
fb78e2ed | 1361 | |
a3d16f39 KH |
1362 | if (NILP (ascii) && from < 0x80) |
1363 | { | |
1364 | if (to < 0x80) | |
fb78e2ed | 1365 | return; |
a3d16f39 KH |
1366 | from = 0x80; |
1367 | range = Fcons (make_number (0x80), XCDR (range)); | |
1368 | } | |
1369 | ||
1370 | #define SCRIPT_FROM XINT (XCAR (XCAR (script_range_list))) | |
1371 | #define SCRIPT_TO XINT (XCDR (XCAR (script_range_list))) | |
1372 | #define POP_SCRIPT_RANGE() script_range_list = XCDR (script_range_list) | |
1373 | ||
1374 | for (; CONSP (script_range_list) && SCRIPT_TO < from; POP_SCRIPT_RANGE ()) | |
1375 | FONTSET_ADD (fontset, XCAR (script_range_list), font_def, add); | |
1376 | if (CONSP (script_range_list)) | |
1377 | { | |
1378 | if (SCRIPT_FROM < from) | |
1379 | range = Fcons (make_number (SCRIPT_FROM), XCDR (range)); | |
1380 | while (CONSP (script_range_list) && SCRIPT_TO <= to) | |
1381 | POP_SCRIPT_RANGE (); | |
1382 | if (CONSP (script_range_list) && SCRIPT_FROM <= to) | |
1383 | XSETCAR (XCAR (script_range_list), make_number (to + 1)); | |
fb78e2ed | 1384 | } |
a3d16f39 KH |
1385 | |
1386 | FONTSET_ADD (fontset, range, font_def, add); | |
1387 | ASET (arg, 4, script_range_list); | |
2449d4d0 KH |
1388 | } |
1389 | ||
f57e2426 | 1390 | static void update_auto_fontset_alist (Lisp_Object, Lisp_Object); |
d6490542 | 1391 | |
d6aaac9e | 1392 | |
1d5d7200 | 1393 | DEFUN ("set-fontset-font", Fset_fontset_font, Sset_fontset_font, 3, 5, 0, |
8f924df7 | 1394 | doc: /* |
eb36588a | 1395 | Modify fontset NAME to use FONT-SPEC for TARGET characters. |
335c5470 | 1396 | |
a3d16f39 KH |
1397 | NAME is a fontset name string, nil for the fontset of FRAME, or t for |
1398 | the default fontset. | |
1399 | ||
eb36588a KH |
1400 | TARGET may be a cons; (FROM . TO), where FROM and TO are characters. |
1401 | In that case, use FONT-SPEC for all characters in the range FROM and | |
1402 | TO (inclusive). | |
06f76f0d | 1403 | |
eb36588a KH |
1404 | TARGET may be a script name symbol. In that case, use FONT-SPEC for |
1405 | all characters that belong to the script. | |
06f76f0d | 1406 | |
eb36588a | 1407 | TARGET may be a charset. In that case, use FONT-SPEC for all |
95318a38 | 1408 | characters in the charset. |
1d5d7200 | 1409 | |
eb36588a KH |
1410 | TARGET may be nil. In that case, use FONT-SPEC for any characters for |
1411 | that no FONT-SPEC is specified. | |
1412 | ||
0fdf26e6 | 1413 | FONT-SPEC may one of these: |
581f7ac7 | 1414 | * A font-spec object made by the function `font-spec' (which see). |
3dcd48dd | 1415 | * A cons (FAMILY . REGISTRY), where FAMILY is a font family name and |
581f7ac7 KH |
1416 | REGISTRY is a font registry name. FAMILY may contain foundry |
1417 | name, and REGISTRY may contain encoding name. | |
00c4da0f | 1418 | * A font name string. |
eaa0402c | 1419 | * nil, which explicitly specifies that there's no font for TARGET. |
1d5d7200 | 1420 | |
a3d16f39 KH |
1421 | Optional 4th argument FRAME is a frame or nil for the selected frame |
1422 | that is concerned in the case that NAME is nil. | |
1d5d7200 KH |
1423 | |
1424 | Optional 5th argument ADD, if non-nil, specifies how to add FONT-SPEC | |
eb36588a | 1425 | to the font specifications for TARGET previously set. If it is |
1d5d7200 KH |
1426 | `prepend', FONT-SPEC is prepended. If it is `append', FONT-SPEC is |
1427 | appended. By default, FONT-SPEC overrides the previous settings. */) | |
5842a27b | 1428 | (Lisp_Object name, Lisp_Object target, Lisp_Object font_spec, Lisp_Object frame, Lisp_Object add) |
0d407d77 | 1429 | { |
06f76f0d | 1430 | Lisp_Object fontset; |
9683749a | 1431 | Lisp_Object font_def, registry, family; |
1d5d7200 | 1432 | Lisp_Object range_list; |
fb78e2ed | 1433 | struct charset *charset = NULL; |
d6490542 KH |
1434 | Lisp_Object fontname; |
1435 | int ascii_changed = 0; | |
0d407d77 | 1436 | |
a3d16f39 | 1437 | fontset = check_fontset_name (name, &frame); |
1d5d7200 | 1438 | |
d6490542 | 1439 | fontname = Qnil; |
581f7ac7 | 1440 | if (CONSP (font_spec)) |
0d407d77 | 1441 | { |
581f7ac7 | 1442 | Lisp_Object spec = Ffont_spec (0, NULL); |
1d5d7200 | 1443 | |
581f7ac7 KH |
1444 | font_parse_family_registry (XCAR (font_spec), XCDR (font_spec), spec); |
1445 | font_spec = spec; | |
d6490542 | 1446 | fontname = Ffont_xlfd_name (font_spec, Qnil); |
0890801b | 1447 | } |
d67f7f1a | 1448 | else if (STRINGP (font_spec)) |
4ed46869 | 1449 | { |
ea0162a6 KH |
1450 | Lisp_Object args[2]; |
1451 | ||
d6490542 | 1452 | fontname = font_spec; |
ea0162a6 KH |
1453 | args[0] = QCname; |
1454 | args[1] = font_spec; | |
1455 | font_spec = Ffont_spec (2, args); | |
0d407d77 | 1456 | } |
d6490542 KH |
1457 | else if (FONT_SPEC_P (font_spec)) |
1458 | fontname = Ffont_xlfd_name (font_spec, Qnil); | |
1459 | else if (! NILP (font_spec)) | |
581f7ac7 | 1460 | Fsignal (Qfont, list2 (build_string ("Invalid font-spec"), font_spec)); |
1d5d7200 | 1461 | |
d67f7f1a | 1462 | if (! NILP (font_spec)) |
57e13af9 | 1463 | { |
581f7ac7 KH |
1464 | Lisp_Object encoding, repertory; |
1465 | ||
d67f7f1a | 1466 | family = AREF (font_spec, FONT_FAMILY_INDEX); |
581f7ac7 | 1467 | if (! NILP (family) ) |
d67f7f1a KH |
1468 | family = SYMBOL_NAME (family); |
1469 | registry = AREF (font_spec, FONT_REGISTRY_INDEX); | |
581f7ac7 KH |
1470 | if (! NILP (registry)) |
1471 | registry = Fdowncase (SYMBOL_NAME (registry)); | |
1472 | encoding = find_font_encoding (concat3 (family, build_string ("-"), | |
1473 | registry)); | |
d67f7f1a KH |
1474 | if (NILP (encoding)) |
1475 | encoding = Qascii; | |
1476 | ||
1477 | if (SYMBOLP (encoding)) | |
1478 | { | |
1479 | CHECK_CHARSET (encoding); | |
1480 | encoding = repertory = CHARSET_SYMBOL_ID (encoding); | |
1481 | } | |
1482 | else | |
57e13af9 | 1483 | { |
d67f7f1a KH |
1484 | repertory = XCDR (encoding); |
1485 | encoding = XCAR (encoding); | |
1486 | CHECK_CHARSET (encoding); | |
1487 | encoding = CHARSET_SYMBOL_ID (encoding); | |
1488 | if (! NILP (repertory) && SYMBOLP (repertory)) | |
1489 | { | |
1490 | CHECK_CHARSET (repertory); | |
1491 | repertory = CHARSET_SYMBOL_ID (repertory); | |
1492 | } | |
57e13af9 | 1493 | } |
581f7ac7 | 1494 | FONT_DEF_NEW (font_def, font_spec, encoding, repertory); |
0d407d77 | 1495 | } |
d67f7f1a KH |
1496 | else |
1497 | font_def = Qnil; | |
4ed46869 | 1498 | |
eb36588a | 1499 | if (CHARACTERP (target)) |
d6490542 KH |
1500 | { |
1501 | if (XFASTINT (target) < 0x80) | |
d7a39b51 | 1502 | error ("Can't set a font for partial ASCII range"); |
d6490542 KH |
1503 | range_list = Fcons (Fcons (target, target), Qnil); |
1504 | } | |
eb36588a | 1505 | else if (CONSP (target)) |
0d407d77 | 1506 | { |
06f76f0d KH |
1507 | Lisp_Object from, to; |
1508 | ||
eb36588a KH |
1509 | from = Fcar (target); |
1510 | to = Fcdr (target); | |
06f76f0d KH |
1511 | CHECK_CHARACTER (from); |
1512 | CHECK_CHARACTER (to); | |
d6490542 KH |
1513 | if (XFASTINT (from) < 0x80) |
1514 | { | |
1515 | if (XFASTINT (from) != 0 || XFASTINT (to) < 0x7F) | |
d7a39b51 | 1516 | error ("Can't set a font for partial ASCII range"); |
d6490542 KH |
1517 | ascii_changed = 1; |
1518 | } | |
eb36588a | 1519 | range_list = Fcons (target, Qnil); |
4ed46869 | 1520 | } |
eb36588a | 1521 | else if (SYMBOLP (target) && !NILP (target)) |
8a9be3ac | 1522 | { |
1d5d7200 KH |
1523 | Lisp_Object script_list; |
1524 | Lisp_Object val; | |
0d407d77 | 1525 | |
1d5d7200 KH |
1526 | range_list = Qnil; |
1527 | script_list = XCHAR_TABLE (Vchar_script_table)->extras[0]; | |
eb36588a | 1528 | if (! NILP (Fmemq (target, script_list))) |
afe93d01 | 1529 | { |
d6490542 KH |
1530 | if (EQ (target, Qlatin)) |
1531 | ascii_changed = 1; | |
eb36588a | 1532 | val = Fcons (target, Qnil); |
1d5d7200 | 1533 | map_char_table (accumulate_script_ranges, Qnil, Vchar_script_table, |
8f924df7 | 1534 | val); |
a3d16f39 | 1535 | range_list = Fnreverse (XCDR (val)); |
afe93d01 | 1536 | } |
fb78e2ed | 1537 | if (CHARSETP (target)) |
afe93d01 | 1538 | { |
d6490542 KH |
1539 | CHECK_CHARSET_GET_CHARSET (target, charset); |
1540 | if (charset->ascii_compatible_p) | |
1541 | ascii_changed = 1; | |
afe93d01 | 1542 | } |
fb78e2ed | 1543 | else if (NILP (range_list)) |
1d5d7200 | 1544 | error ("Invalid script or charset name: %s", |
eb36588a | 1545 | SDATA (SYMBOL_NAME (target))); |
8a9be3ac | 1546 | } |
eb36588a KH |
1547 | else if (NILP (target)) |
1548 | range_list = Fcons (Qnil, Qnil); | |
1549 | else | |
1550 | error ("Invalid target for setting a font"); | |
0d407d77 | 1551 | |
a3d16f39 KH |
1552 | if (ascii_changed) |
1553 | { | |
1554 | Lisp_Object val; | |
1555 | ||
1556 | if (NILP (font_spec)) | |
1557 | error ("Can't set ASCII font to nil"); | |
1558 | val = CHAR_TABLE_REF (fontset, 0); | |
1559 | if (! NILP (val) && EQ (add, Qappend)) | |
1560 | /* We are going to change just an additional font for ASCII. */ | |
1561 | ascii_changed = 0; | |
1562 | } | |
fb78e2ed KH |
1563 | |
1564 | if (charset) | |
1565 | { | |
a3d16f39 KH |
1566 | Lisp_Object arg; |
1567 | ||
1568 | arg = Fmake_vector (make_number (5), Qnil); | |
1569 | ASET (arg, 0, fontset); | |
1570 | ASET (arg, 1, font_def); | |
1571 | ASET (arg, 2, add); | |
1572 | ASET (arg, 3, ascii_changed ? Qt : Qnil); | |
1573 | ASET (arg, 4, range_list); | |
fb78e2ed | 1574 | |
a3d16f39 | 1575 | map_charset_chars (set_fontset_font, Qnil, arg, charset, |
fb78e2ed KH |
1576 | CHARSET_MIN_CODE (charset), |
1577 | CHARSET_MAX_CODE (charset)); | |
a3d16f39 | 1578 | range_list = AREF (arg, 4); |
fb78e2ed | 1579 | } |
1d5d7200 KH |
1580 | for (; CONSP (range_list); range_list = XCDR (range_list)) |
1581 | FONTSET_ADD (fontset, XCAR (range_list), font_def, add); | |
4ed46869 | 1582 | |
d6490542 KH |
1583 | if (ascii_changed) |
1584 | { | |
7519b8cd | 1585 | Lisp_Object tail, fr, alist; |
d6490542 KH |
1586 | int fontset_id = XINT (FONTSET_ID (fontset)); |
1587 | ||
d6490542 KH |
1588 | FONTSET_ASCII (fontset) = fontname; |
1589 | name = FONTSET_NAME (fontset); | |
7519b8cd | 1590 | FOR_EACH_FRAME (tail, fr) |
d6490542 | 1591 | { |
7519b8cd | 1592 | FRAME_PTR f = XFRAME (fr); |
d6490542 | 1593 | Lisp_Object font_object; |
0875632e | 1594 | struct face *face; |
d6490542 | 1595 | |
0875632e | 1596 | if (FRAME_INITIAL_P (f) || FRAME_TERMCAP_P (f)) |
d6490542 KH |
1597 | continue; |
1598 | if (fontset_id != FRAME_FONTSET (f)) | |
1599 | continue; | |
0875632e KH |
1600 | face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
1601 | if (face) | |
1602 | font_object = font_load_for_lface (f, face->lface, font_spec); | |
1603 | else | |
1604 | font_object = font_open_by_spec (f, font_spec); | |
d6490542 KH |
1605 | if (! NILP (font_object)) |
1606 | { | |
1607 | update_auto_fontset_alist (font_object, fontset); | |
0875632e | 1608 | alist = Fcons (Fcons (Qfont, Fcons (name, font_object)), Qnil); |
7519b8cd | 1609 | Fmodify_frame_parameters (fr, alist); |
d6490542 KH |
1610 | } |
1611 | } | |
1612 | } | |
1613 | ||
0875632e KH |
1614 | /* Free all realized fontsets whose base is FONTSET. This way, the |
1615 | specified character(s) are surely redisplayed by a correct | |
1616 | font. */ | |
1617 | free_realized_fontsets (fontset); | |
1618 | ||
4ed46869 KH |
1619 | return Qnil; |
1620 | } | |
1621 | ||
06f76f0d KH |
1622 | |
1623 | DEFUN ("new-fontset", Fnew_fontset, Snew_fontset, 2, 2, 0, | |
1624 | doc: /* Create a new fontset NAME from font information in FONTLIST. | |
1625 | ||
1d5d7200 | 1626 | FONTLIST is an alist of scripts vs the corresponding font specification list. |
d6aaac9e KH |
1627 | Each element of FONTLIST has the form (SCRIPT FONT-SPEC ...), where a |
1628 | character of SCRIPT is displayed by a font that matches one of | |
1629 | FONT-SPEC. | |
06f76f0d | 1630 | |
d6aaac9e KH |
1631 | SCRIPT is a symbol that appears in the first extra slot of the |
1632 | char-table `char-script-table'. | |
06f76f0d | 1633 | |
1d5d7200 KH |
1634 | FONT-SPEC is a vector, a cons, or a string. See the documentation of |
1635 | `set-fontset-font' for the meaning. */) | |
5842a27b | 1636 | (Lisp_Object name, Lisp_Object fontlist) |
06f76f0d | 1637 | { |
1d5d7200 | 1638 | Lisp_Object fontset; |
1d5d7200 | 1639 | int id; |
06f76f0d KH |
1640 | |
1641 | CHECK_STRING (name); | |
1642 | CHECK_LIST (fontlist); | |
1643 | ||
581f7ac7 | 1644 | name = Fdowncase (name); |
1d5d7200 KH |
1645 | id = fs_query_fontset (name, 0); |
1646 | if (id < 0) | |
0d407d77 | 1647 | { |
581f7ac7 KH |
1648 | Lisp_Object font_spec = Ffont_spec (0, NULL); |
1649 | Lisp_Object short_name; | |
5f2d79e0 | 1650 | char xlfd[256]; |
581f7ac7 KH |
1651 | int len; |
1652 | ||
51b59d79 | 1653 | if (font_parse_xlfd (SSDATA (name), font_spec) < 0) |
d6aaac9e | 1654 | error ("Fontset name must be in XLFD format"); |
581f7ac7 | 1655 | short_name = AREF (font_spec, FONT_REGISTRY_INDEX); |
51b59d79 | 1656 | if (strncmp (SSDATA (SYMBOL_NAME (short_name)), "fontset-", 8) |
581f7ac7 KH |
1657 | || SBYTES (SYMBOL_NAME (short_name)) < 9) |
1658 | error ("Registry field of fontset name must be \"fontset-*\""); | |
1659 | Vfontset_alias_alist = Fcons (Fcons (name, SYMBOL_NAME (short_name)), | |
1660 | Vfontset_alias_alist); | |
1661 | ASET (font_spec, FONT_REGISTRY_INDEX, Qiso8859_1); | |
d6aaac9e | 1662 | fontset = make_fontset (Qnil, name, Qnil); |
5f2d79e0 KH |
1663 | len = font_unparse_xlfd (font_spec, 0, xlfd, 256); |
1664 | if (len < 0) | |
1665 | error ("Invalid fontset name (perhaps too long): %s", SDATA (name)); | |
581f7ac7 | 1666 | FONTSET_ASCII (fontset) = make_unibyte_string (xlfd, len); |
d6aaac9e | 1667 | } |
1d5d7200 KH |
1668 | else |
1669 | { | |
8510724d | 1670 | fontset = FONTSET_FROM_ID (id); |
1d5d7200 KH |
1671 | free_realized_fontsets (fontset); |
1672 | Fset_char_table_range (fontset, Qt, Qnil); | |
0d407d77 | 1673 | } |
4ed46869 | 1674 | |
1d5d7200 KH |
1675 | for (; ! NILP (fontlist); fontlist = Fcdr (fontlist)) |
1676 | { | |
1677 | Lisp_Object elt, script; | |
1678 | ||
1679 | elt = Fcar (fontlist); | |
1680 | script = Fcar (elt); | |
cc36ddbf KH |
1681 | elt = Fcdr (elt); |
1682 | if (CONSP (elt) && (NILP (XCDR (elt)) || CONSP (XCDR (elt)))) | |
1683 | for (; CONSP (elt); elt = XCDR (elt)) | |
1684 | Fset_fontset_font (name, script, XCAR (elt), Qnil, Qappend); | |
1685 | else | |
1686 | Fset_fontset_font (name, script, elt, Qnil, Qappend); | |
1d5d7200 | 1687 | } |
06f76f0d KH |
1688 | return name; |
1689 | } | |
1690 | ||
1691 | ||
452a78e0 | 1692 | /* Alist of automatically created fontsets. Each element is a cons |
581f7ac7 | 1693 | (FONT-SPEC . FONTSET-ID). */ |
452a78e0 | 1694 | static Lisp_Object auto_fontset_alist; |
d6aaac9e | 1695 | |
d6490542 KH |
1696 | /* Number of automatically created fontsets. */ |
1697 | static int num_auto_fontsets; | |
1698 | ||
d8d2f142 KH |
1699 | /* Retun a fontset synthesized from FONT-OBJECT. This is called from |
1700 | x_new_font when FONT-OBJECT is used for the default ASCII font of a | |
1701 | frame, and the returned fontset is used for the default fontset of | |
1702 | that frame. The fontset specifies a font of the same registry as | |
1703 | FONT-OBJECT for all characters in the repertory of the registry | |
1704 | (see Vfont_encoding_alist). If the repertory is not known, the | |
1705 | fontset specifies the font for all Latin characters assuming that a | |
1706 | user intends to use FONT-OBJECT for Latin characters. */ | |
d6490542 | 1707 | |
d6aaac9e | 1708 | int |
971de7fb | 1709 | fontset_from_font (Lisp_Object font_object) |
8aa07a8d | 1710 | { |
03ef560c | 1711 | Lisp_Object font_name = font_get_name (font_object); |
581f7ac7 | 1712 | Lisp_Object font_spec = Fcopy_font_spec (font_object); |
d6490542 | 1713 | Lisp_Object registry = AREF (font_spec, FONT_REGISTRY_INDEX); |
581f7ac7 KH |
1714 | Lisp_Object fontset_spec, alias, name, fontset; |
1715 | Lisp_Object val; | |
8aa07a8d | 1716 | |
581f7ac7 KH |
1717 | val = assoc_no_quit (font_spec, auto_fontset_alist); |
1718 | if (CONSP (val)) | |
1719 | return XINT (FONTSET_ID (XCDR (val))); | |
d6490542 | 1720 | if (num_auto_fontsets++ == 0) |
581f7ac7 | 1721 | alias = intern ("fontset-startup"); |
03ef560c KH |
1722 | else |
1723 | { | |
1724 | char temp[32]; | |
8aa07a8d | 1725 | |
d6490542 | 1726 | sprintf (temp, "fontset-auto%d", num_auto_fontsets - 1); |
581f7ac7 | 1727 | alias = intern (temp); |
03ef560c | 1728 | } |
581f7ac7 KH |
1729 | fontset_spec = Fcopy_font_spec (font_spec); |
1730 | ASET (fontset_spec, FONT_REGISTRY_INDEX, alias); | |
7ae2e7f0 | 1731 | name = Ffont_xlfd_name (fontset_spec, Qnil); |
03ef560c | 1732 | if (NILP (name)) |
581f7ac7 | 1733 | abort (); |
03ef560c | 1734 | fontset = make_fontset (Qnil, name, Qnil); |
581f7ac7 KH |
1735 | Vfontset_alias_alist = Fcons (Fcons (name, SYMBOL_NAME (alias)), |
1736 | Vfontset_alias_alist); | |
1737 | alias = Fdowncase (AREF (font_object, FONT_NAME_INDEX)); | |
1738 | Vfontset_alias_alist = Fcons (Fcons (name, alias), Vfontset_alias_alist); | |
1739 | auto_fontset_alist = Fcons (Fcons (font_spec, fontset), auto_fontset_alist); | |
d8d2f142 KH |
1740 | font_spec = Ffont_spec (0, NULL); |
1741 | ASET (font_spec, FONT_REGISTRY_INDEX, registry); | |
1742 | { | |
1743 | Lisp_Object target = find_font_encoding (SYMBOL_NAME (registry)); | |
1744 | ||
1745 | if (CONSP (target)) | |
1746 | target = XCDR (target); | |
1747 | if (! CHARSETP (target)) | |
1748 | target = Qlatin; | |
1749 | Fset_fontset_font (name, target, font_spec, Qnil, Qnil); | |
1750 | Fset_fontset_font (name, Qnil, font_spec, Qnil, Qnil); | |
1751 | } | |
1752 | ||
d6490542 | 1753 | FONTSET_ASCII (fontset) = font_name; |
edfda783 | 1754 | |
03ef560c | 1755 | return XINT (FONTSET_ID (fontset)); |
8aa07a8d KH |
1756 | } |
1757 | ||
d6490542 KH |
1758 | |
1759 | /* Update auto_fontset_alist for FONTSET. When an ASCII font of | |
1760 | FONTSET is changed, we delete an entry of FONTSET if any from | |
1761 | auto_fontset_alist so that FONTSET is not re-used by | |
1762 | fontset_from_font. */ | |
1763 | ||
1764 | static void | |
971de7fb | 1765 | update_auto_fontset_alist (Lisp_Object font_object, Lisp_Object fontset) |
d6490542 KH |
1766 | { |
1767 | Lisp_Object prev, tail; | |
1768 | ||
1769 | for (prev = Qnil, tail = auto_fontset_alist; CONSP (tail); | |
1770 | prev = tail, tail = XCDR (tail)) | |
1771 | if (EQ (fontset, XCDR (XCAR (tail)))) | |
1772 | { | |
1773 | if (NILP (prev)) | |
1774 | auto_fontset_alist = XCDR (tail); | |
1775 | else | |
1776 | XSETCDR (prev, XCDR (tail)); | |
1777 | break; | |
1778 | } | |
1779 | } | |
1780 | ||
1781 | ||
fe44f009 KH |
1782 | /* Return a cons (FONT-OBJECT . GLYPH-CODE). |
1783 | FONT-OBJECT is the font for the character at POSITION in the current | |
1ff005e1 | 1784 | buffer. This is computed from all the text properties and overlays |
cf14fd6e | 1785 | that apply to POSITION. POSTION may be nil, in which case, |
fe44f009 | 1786 | FONT-SPEC is the font for displaying the character CH with the |
cf14fd6e KH |
1787 | default face. |
1788 | ||
92c15c34 KH |
1789 | GLYPH-CODE is the glyph code in the font to use for the character. |
1790 | ||
1791 | If the 2nd optional arg CH is non-nil, it is a character to check | |
1792 | the font instead of the character at POSITION. | |
1793 | ||
1794 | It returns nil in the following cases: | |
1ff005e1 KH |
1795 | |
1796 | (1) The window system doesn't have a font for the character (thus | |
1797 | it is displayed by an empty box). | |
1798 | ||
1799 | (2) The character code is invalid. | |
1800 | ||
cf14fd6e KH |
1801 | (3) If POSITION is not nil, and the current buffer is not displayed |
1802 | in any window. | |
1ff005e1 KH |
1803 | |
1804 | In addition, the returned font name may not take into account of | |
1805 | such redisplay engine hooks as what used in jit-lock-mode if | |
1806 | POSITION is currently not visible. */ | |
1807 | ||
1808 | ||
92c15c34 | 1809 | DEFUN ("internal-char-font", Finternal_char_font, Sinternal_char_font, 1, 2, 0, |
335c5470 | 1810 | doc: /* For internal use only. */) |
5842a27b | 1811 | (Lisp_Object position, Lisp_Object ch) |
1ff005e1 | 1812 | { |
0f8b27ea | 1813 | EMACS_INT pos, pos_byte, dummy; |
1ff005e1 KH |
1814 | int face_id; |
1815 | int c; | |
1ff005e1 KH |
1816 | struct frame *f; |
1817 | struct face *face; | |
1818 | ||
cf14fd6e | 1819 | if (NILP (position)) |
92c15c34 KH |
1820 | { |
1821 | CHECK_CHARACTER (ch); | |
1822 | c = XINT (ch); | |
cf14fd6e | 1823 | f = XFRAME (selected_frame); |
f2cec7a9 | 1824 | face_id = lookup_basic_face (f, DEFAULT_FACE_ID); |
327719ee | 1825 | pos = -1; |
cf14fd6e KH |
1826 | } |
1827 | else | |
1828 | { | |
f0397f5a | 1829 | Lisp_Object window; |
cf14fd6e KH |
1830 | struct window *w; |
1831 | ||
1832 | CHECK_NUMBER_COERCE_MARKER (position); | |
1833 | pos = XINT (position); | |
1834 | if (pos < BEGV || pos >= ZV) | |
1835 | args_out_of_range_3 (position, make_number (BEGV), make_number (ZV)); | |
1836 | pos_byte = CHAR_TO_BYTE (pos); | |
1837 | if (NILP (ch)) | |
1838 | c = FETCH_CHAR (pos_byte); | |
1839 | else | |
1840 | { | |
1841 | CHECK_NATNUM (ch); | |
1842 | c = XINT (ch); | |
1843 | } | |
1844 | window = Fget_buffer_window (Fcurrent_buffer (), Qnil); | |
1845 | if (NILP (window)) | |
1846 | return Qnil; | |
1847 | w = XWINDOW (window); | |
1848 | f = XFRAME (w->frame); | |
6970f632 CY |
1849 | face_id = face_at_buffer_position (w, pos, -1, -1, &dummy, |
1850 | pos + 100, 0, -1); | |
92c15c34 | 1851 | } |
1ff005e1 | 1852 | if (! CHAR_VALID_P (c, 0)) |
1ff005e1 | 1853 | return Qnil; |
327719ee | 1854 | face_id = FACE_FOR_CHAR (f, FACE_FROM_ID (f, face_id), c, pos, Qnil); |
1ff005e1 | 1855 | face = FACE_FROM_ID (f, face_id); |
581f7ac7 | 1856 | if (face->font) |
8aa07a8d | 1857 | { |
fe44f009 KH |
1858 | unsigned code = face->font->driver->encode_char (face->font, c); |
1859 | Lisp_Object font_object; | |
581f7ac7 KH |
1860 | /* Assignment to EMACS_INT stops GCC whining about limited range |
1861 | of data type. */ | |
1862 | EMACS_INT cod = code; | |
1863 | ||
1864 | if (code == FONT_INVALID_CODE) | |
1865 | return Qnil; | |
fe44f009 | 1866 | XSETFONT (font_object, face->font); |
581f7ac7 | 1867 | if (cod <= MOST_POSITIVE_FIXNUM) |
fe44f009 KH |
1868 | return Fcons (font_object, make_number (code)); |
1869 | return Fcons (font_object, Fcons (make_number (code >> 16), | |
581f7ac7 | 1870 | make_number (code & 0xFFFF))); |
92c15c34 KH |
1871 | } |
1872 | return Qnil; | |
1ff005e1 KH |
1873 | } |
1874 | ||
1875 | ||
1d5d7200 KH |
1876 | DEFUN ("fontset-info", Ffontset_info, Sfontset_info, 1, 2, 0, |
1877 | doc: /* Return information about a fontset FONTSET on frame FRAME. | |
e2b45cf9 | 1878 | |
a3d16f39 KH |
1879 | FONTSET is a fontset name string, nil for the fontset of FRAME, or t |
1880 | for the default fontset. FRAME nil means the selected frame. | |
1ff005e1 | 1881 | |
a3d16f39 | 1882 | The value is a char-table whose elements have this form: |
1ff005e1 | 1883 | |
a3d16f39 | 1884 | ((FONT OPENED-FONT ...) ...) |
1ff005e1 | 1885 | |
a3d16f39 | 1886 | FONT is a name of font specified for a range of characters. |
1ff005e1 | 1887 | |
d6aaac9e | 1888 | OPENED-FONT is a name of a font actually opened. |
1ff005e1 | 1889 | |
a3d16f39 KH |
1890 | The char-table has one extra slot. If FONTSET is not the default |
1891 | fontset, the value the extra slot is a char-table containing the | |
1892 | information about the derived fonts from the default fontset. The | |
1893 | format is the same as above. */) | |
5842a27b | 1894 | (Lisp_Object fontset, Lisp_Object frame) |
4ed46869 | 1895 | { |
cc7b6145 KH |
1896 | Lisp_Object *realized[2], fontsets[2], tables[2]; |
1897 | Lisp_Object val, elt; | |
1898 | int c, i, j, k; | |
fc8865fc | 1899 | |
4ed46869 KH |
1900 | (*check_window_system_func) (); |
1901 | ||
a3d16f39 | 1902 | fontset = check_fontset_name (fontset, &frame); |
4ed46869 | 1903 | |
1d5d7200 KH |
1904 | /* Recode fontsets realized on FRAME from the base fontset FONTSET |
1905 | in the table `realized'. */ | |
cc7b6145 KH |
1906 | realized[0] = (Lisp_Object *) alloca (sizeof (Lisp_Object) |
1907 | * ASIZE (Vfontset_table)); | |
1908 | for (i = j = 0; i < ASIZE (Vfontset_table); i++) | |
0d407d77 | 1909 | { |
1ff005e1 KH |
1910 | elt = FONTSET_FROM_ID (i); |
1911 | if (!NILP (elt) | |
1d5d7200 KH |
1912 | && EQ (FONTSET_BASE (elt), fontset) |
1913 | && EQ (FONTSET_FRAME (elt), frame)) | |
cc7b6145 | 1914 | realized[0][j++] = elt; |
0d407d77 | 1915 | } |
cc7b6145 | 1916 | realized[0][j] = Qnil; |
4ed46869 | 1917 | |
cc7b6145 KH |
1918 | realized[1] = (Lisp_Object *) alloca (sizeof (Lisp_Object) |
1919 | * ASIZE (Vfontset_table)); | |
1920 | for (i = j = 0; ! NILP (realized[0][i]); i++) | |
1921 | { | |
1922 | elt = FONTSET_DEFAULT (realized[0][i]); | |
1923 | if (! NILP (elt)) | |
1924 | realized[1][j++] = elt; | |
1925 | } | |
1926 | realized[1][j] = Qnil; | |
1927 | ||
1928 | tables[0] = Fmake_char_table (Qfontset_info, Qnil); | |
cc7b6145 | 1929 | fontsets[0] = fontset; |
348db3dd | 1930 | if (!EQ (fontset, Vdefault_fontset)) |
a3d16f39 KH |
1931 | { |
1932 | tables[1] = Fmake_char_table (Qnil, Qnil); | |
1933 | XCHAR_TABLE (tables[0])->extras[0] = tables[1]; | |
1934 | fontsets[1] = Vdefault_fontset; | |
1935 | } | |
e2b45cf9 | 1936 | |
1d5d7200 KH |
1937 | /* Accumulate information of the fontset in TABLE. The format of |
1938 | each element is ((FONT-SPEC OPENED-FONT ...) ...). */ | |
cc7b6145 | 1939 | for (k = 0; k <= 1; k++) |
0d407d77 | 1940 | { |
cc7b6145 | 1941 | for (c = 0; c <= MAX_CHAR; ) |
d6aaac9e | 1942 | { |
5b30be1a | 1943 | int from = c, to = MAX_5_BYTE_CHAR; |
0d407d77 | 1944 | |
cc7b6145 KH |
1945 | if (c <= MAX_5_BYTE_CHAR) |
1946 | { | |
1947 | val = char_table_ref_and_range (fontsets[k], c, &from, &to); | |
cc7b6145 KH |
1948 | } |
1949 | else | |
1950 | { | |
1951 | val = FONTSET_FALLBACK (fontsets[k]); | |
1952 | to = MAX_CHAR; | |
1953 | } | |
d6aaac9e | 1954 | if (VECTORP (val)) |
0d407d77 | 1955 | { |
d6aaac9e KH |
1956 | Lisp_Object alist; |
1957 | ||
1958 | /* At first, set ALIST to ((FONT-SPEC) ...). */ | |
1959 | for (alist = Qnil, i = 0; i < ASIZE (val); i++) | |
581f7ac7 KH |
1960 | if (! NILP (AREF (val, i))) |
1961 | alist = Fcons (Fcons (FONT_DEF_SPEC (AREF (val, i)), Qnil), | |
1962 | alist); | |
d6aaac9e KH |
1963 | alist = Fnreverse (alist); |
1964 | ||
660100f3 | 1965 | /* Then store opened font names to cdr of each elements. */ |
cc7b6145 | 1966 | for (i = 0; ! NILP (realized[k][i]); i++) |
1ff005e1 | 1967 | { |
cc7b6145 KH |
1968 | if (c <= MAX_5_BYTE_CHAR) |
1969 | val = FONTSET_REF (realized[k][i], c); | |
1970 | else | |
1971 | val = FONTSET_FALLBACK (realized[k][i]); | |
a3d16f39 | 1972 | if (! CONSP (val) || ! VECTORP (XCDR (val))) |
d6aaac9e | 1973 | continue; |
a3d16f39 KH |
1974 | /* VAL: (int . [[FACE-ID FONT-DEF FONT-OBJECT int] ... ]) */ |
1975 | val = XCDR (val); | |
1976 | for (j = 0; j < ASIZE (val); j++) | |
3d4448a8 | 1977 | { |
581f7ac7 KH |
1978 | elt = AREF (val, j); |
1979 | if (FONT_OBJECT_P (RFONT_DEF_OBJECT (elt))) | |
1980 | { | |
1981 | Lisp_Object font_object = RFONT_DEF_OBJECT (elt); | |
1982 | Lisp_Object slot, name; | |
1983 | ||
1984 | slot = Fassq (RFONT_DEF_SPEC (elt), alist); | |
1985 | name = AREF (font_object, FONT_NAME_INDEX); | |
1986 | if (NILP (Fmember (name, XCDR (slot)))) | |
1987 | nconc2 (slot, Fcons (name, Qnil)); | |
1988 | } | |
3d4448a8 | 1989 | } |
1ff005e1 | 1990 | } |
d6aaac9e KH |
1991 | |
1992 | /* Store ALIST in TBL for characters C..TO. */ | |
cc7b6145 KH |
1993 | if (c <= MAX_5_BYTE_CHAR) |
1994 | char_table_set_range (tables[k], c, to, alist); | |
1995 | else | |
1996 | XCHAR_TABLE (tables[k])->defalt = alist; | |
581f7ac7 KH |
1997 | |
1998 | /* At last, change each elements to font names. */ | |
1999 | for (; CONSP (alist); alist = XCDR (alist)) | |
2000 | { | |
2001 | elt = XCAR (alist); | |
7ae2e7f0 | 2002 | XSETCAR (elt, Ffont_xlfd_name (XCAR (elt), Qnil)); |
581f7ac7 | 2003 | } |
0d407d77 | 2004 | } |
d6aaac9e | 2005 | c = to + 1; |
0d407d77 | 2006 | } |
348db3dd | 2007 | if (EQ (fontset, Vdefault_fontset)) |
a3d16f39 | 2008 | break; |
0d407d77 | 2009 | } |
a921395d | 2010 | |
cc7b6145 | 2011 | return tables[0]; |
4ed46869 KH |
2012 | } |
2013 | ||
1d5d7200 | 2014 | |
0fdf26e6 | 2015 | DEFUN ("fontset-font", Ffontset_font, Sfontset_font, 2, 3, 0, |
335c5470 | 2016 | doc: /* Return a font name pattern for character CH in fontset NAME. |
0fdf26e6 | 2017 | If NAME is t, find a pattern in the default fontset. |
5fc05db0 | 2018 | If NAME is nil, find a pattern in the fontset of the selected frame. |
0fdf26e6 KH |
2019 | |
2020 | The value has the form (FAMILY . REGISTRY), where FAMILY is a font | |
2021 | family name and REGISTRY is a font registry name. This is actually | |
2022 | the first font name pattern for CH in the fontset or in the default | |
2023 | fontset. | |
2024 | ||
2025 | If the 2nd optional arg ALL is non-nil, return a list of all font name | |
2026 | patterns. */) | |
5842a27b | 2027 | (Lisp_Object name, Lisp_Object ch, Lisp_Object all) |
0d407d77 | 2028 | { |
1337ac77 | 2029 | int c; |
0fdf26e6 KH |
2030 | Lisp_Object fontset, elt, list, repertory, val; |
2031 | int i, j; | |
a3d16f39 | 2032 | Lisp_Object frame; |
0d407d77 | 2033 | |
a3d16f39 KH |
2034 | frame = Qnil; |
2035 | fontset = check_fontset_name (name, &frame); | |
0d407d77 | 2036 | |
06f76f0d | 2037 | CHECK_CHARACTER (ch); |
0d407d77 | 2038 | c = XINT (ch); |
0fdf26e6 KH |
2039 | list = Qnil; |
2040 | while (1) | |
2041 | { | |
2042 | for (i = 0, elt = FONTSET_REF (fontset, c); i < 2; | |
2043 | i++, elt = FONTSET_FALLBACK (fontset)) | |
2044 | if (VECTORP (elt)) | |
2045 | for (j = 0; j < ASIZE (elt); j++) | |
2046 | { | |
a124bbb6 KH |
2047 | Lisp_Object family, registry; |
2048 | ||
0fdf26e6 | 2049 | val = AREF (elt, j); |
5fc05db0 | 2050 | if (NILP (val)) |
563a866e | 2051 | return Qnil; |
0fdf26e6 KH |
2052 | repertory = AREF (val, 1); |
2053 | if (INTEGERP (repertory)) | |
2054 | { | |
2055 | struct charset *charset = CHARSET_FROM_ID (XINT (repertory)); | |
2056 | ||
2057 | if (! CHAR_CHARSET_P (c, charset)) | |
2058 | continue; | |
2059 | } | |
2060 | else if (CHAR_TABLE_P (repertory)) | |
2061 | { | |
2062 | if (NILP (CHAR_TABLE_REF (repertory, c))) | |
2063 | continue; | |
2064 | } | |
2065 | val = AREF (val, 0); | |
a124bbb6 KH |
2066 | /* VAL is a FONT-SPEC */ |
2067 | family = AREF (val, FONT_FAMILY_INDEX); | |
2068 | if (! NILP (family)) | |
2069 | family = SYMBOL_NAME (family); | |
2070 | registry = AREF (val, FONT_REGISTRY_INDEX); | |
2071 | if (! NILP (registry)) | |
2072 | registry = SYMBOL_NAME (registry); | |
2073 | val = Fcons (family, registry); | |
0fdf26e6 KH |
2074 | if (NILP (all)) |
2075 | return val; | |
2076 | list = Fcons (val, list); | |
2077 | } | |
2078 | if (EQ (fontset, Vdefault_fontset)) | |
2079 | break; | |
2080 | fontset = Vdefault_fontset; | |
2081 | } | |
2082 | return (Fnreverse (list)); | |
0d407d77 | 2083 | } |
0d407d77 KH |
2084 | |
2085 | DEFUN ("fontset-list", Ffontset_list, Sfontset_list, 0, 0, 0, | |
335c5470 | 2086 | doc: /* Return a list of all defined fontset names. */) |
5842a27b | 2087 | (void) |
0d407d77 KH |
2088 | { |
2089 | Lisp_Object fontset, list; | |
2090 | int i; | |
2091 | ||
2092 | list = Qnil; | |
2093 | for (i = 0; i < ASIZE (Vfontset_table); i++) | |
2094 | { | |
2095 | fontset = FONTSET_FROM_ID (i); | |
2096 | if (!NILP (fontset) | |
2097 | && BASE_FONTSET_P (fontset)) | |
2098 | list = Fcons (FONTSET_NAME (fontset), list); | |
2099 | } | |
1ff005e1 | 2100 | |
0d407d77 KH |
2101 | return list; |
2102 | } | |
2103 | ||
452a78e0 KH |
2104 | |
2105 | #ifdef FONTSET_DEBUG | |
2106 | ||
2107 | Lisp_Object | |
ef1b0ba7 | 2108 | dump_fontset (Lisp_Object fontset) |
452a78e0 KH |
2109 | { |
2110 | Lisp_Object vec; | |
2111 | ||
2112 | vec = Fmake_vector (make_number (3), Qnil); | |
2113 | ASET (vec, 0, FONTSET_ID (fontset)); | |
2114 | ||
2115 | if (BASE_FONTSET_P (fontset)) | |
2116 | { | |
2117 | ASET (vec, 1, FONTSET_NAME (fontset)); | |
2118 | } | |
2119 | else | |
2120 | { | |
2121 | Lisp_Object frame; | |
2122 | ||
2123 | frame = FONTSET_FRAME (fontset); | |
2124 | if (FRAMEP (frame)) | |
2125 | { | |
2126 | FRAME_PTR f = XFRAME (frame); | |
2127 | ||
2128 | if (FRAME_LIVE_P (f)) | |
1c82b4b3 KH |
2129 | ASET (vec, 1, |
2130 | Fcons (FONTSET_NAME (FONTSET_BASE (fontset)), f->name)); | |
452a78e0 | 2131 | else |
1c82b4b3 KH |
2132 | ASET (vec, 1, |
2133 | Fcons (FONTSET_NAME (FONTSET_BASE (fontset)), Qnil)); | |
452a78e0 | 2134 | } |
eb36588a KH |
2135 | if (!NILP (FONTSET_DEFAULT (fontset))) |
2136 | ASET (vec, 2, FONTSET_ID (FONTSET_DEFAULT (fontset))); | |
452a78e0 KH |
2137 | } |
2138 | return vec; | |
2139 | } | |
2140 | ||
16a97296 | 2141 | DEFUE ("fontset-list-all", Ffontset_list_all, Sfontset_list_all, 0, 0, 0, |
452a78e0 | 2142 | doc: /* Return a brief summary of all fontsets for debug use. */) |
5842a27b | 2143 | (void) |
452a78e0 KH |
2144 | { |
2145 | Lisp_Object val; | |
2146 | int i; | |
2147 | ||
2148 | for (i = 0, val = Qnil; i < ASIZE (Vfontset_table); i++) | |
2149 | if (! NILP (AREF (Vfontset_table, i))) | |
2150 | val = Fcons (dump_fontset (AREF (Vfontset_table, i)), val); | |
2151 | return (Fnreverse (val)); | |
2152 | } | |
2153 | #endif /* FONTSET_DEBUG */ | |
2154 | ||
dfcf069d | 2155 | void |
971de7fb | 2156 | syms_of_fontset (void) |
4ed46869 | 2157 | { |
1d5d7200 | 2158 | DEFSYM (Qfontset, "fontset"); |
eb36588a | 2159 | Fput (Qfontset, Qchar_table_extra_slots, make_number (9)); |
d6aaac9e KH |
2160 | DEFSYM (Qfontset_info, "fontset-info"); |
2161 | Fput (Qfontset_info, Qchar_table_extra_slots, make_number (1)); | |
4ed46869 | 2162 | |
1d5d7200 KH |
2163 | DEFSYM (Qprepend, "prepend"); |
2164 | DEFSYM (Qappend, "append"); | |
c3fb88cc | 2165 | DEFSYM (Qlatin, "latin"); |
4ed46869 KH |
2166 | |
2167 | Vcached_fontset_data = Qnil; | |
2168 | staticpro (&Vcached_fontset_data); | |
2169 | ||
0d407d77 KH |
2170 | Vfontset_table = Fmake_vector (make_number (32), Qnil); |
2171 | staticpro (&Vfontset_table); | |
0d407d77 KH |
2172 | |
2173 | Vdefault_fontset = Fmake_char_table (Qfontset, Qnil); | |
2174 | staticpro (&Vdefault_fontset); | |
1ff005e1 KH |
2175 | FONTSET_ID (Vdefault_fontset) = make_number (0); |
2176 | FONTSET_NAME (Vdefault_fontset) | |
d67b4f80 | 2177 | = make_pure_c_string ("-*-*-*-*-*-*-*-*-*-*-*-*-fontset-default"); |
ff7a2223 | 2178 | ASET (Vfontset_table, 0, Vdefault_fontset); |
1ff005e1 | 2179 | next_fontset_id = 1; |
4ed46869 | 2180 | |
452a78e0 KH |
2181 | auto_fontset_alist = Qnil; |
2182 | staticpro (&auto_fontset_alist); | |
2183 | ||
29208e82 | 2184 | DEFVAR_LISP ("font-encoding-charset-alist", Vfont_encoding_charset_alist, |
28e2436a KH |
2185 | doc: /* |
2186 | Alist of charsets vs the charsets to determine the preferred font encoding. | |
eb152aa9 | 2187 | Each element looks like (CHARSET . ENCODING-CHARSET), |
28e2436a KH |
2188 | where ENCODING-CHARSET is a charset registered in the variable |
2189 | `font-encoding-alist' as ENCODING. | |
2190 | ||
2191 | When a text has a property `charset' and the value is CHARSET, a font | |
2192 | whose encoding corresponds to ENCODING-CHARSET is preferred. */); | |
2193 | Vfont_encoding_charset_alist = Qnil; | |
2194 | ||
29208e82 | 2195 | DEFVAR_LISP ("use-default-ascent", Vuse_default_ascent, |
1d5d7200 KH |
2196 | doc: /* |
2197 | Char table of characters whose ascent values should be ignored. | |
335c5470 | 2198 | If an entry for a character is non-nil, the ascent value of the glyph |
eb152aa9 | 2199 | is assumed to be specified by _MULE_DEFAULT_ASCENT property of a font. |
335c5470 PJ |
2200 | |
2201 | This affects how a composite character which contains | |
2202 | such a character is displayed on screen. */); | |
2aeafb78 KH |
2203 | Vuse_default_ascent = Qnil; |
2204 | ||
29208e82 | 2205 | DEFVAR_LISP ("ignore-relative-composition", Vignore_relative_composition, |
1d5d7200 | 2206 | doc: /* |
eb152aa9 | 2207 | Char table of characters which are not composed relatively. |
335c5470 PJ |
2208 | If an entry for a character is non-nil, a composition sequence |
2209 | which contains that character is displayed so that | |
2210 | the glyph of that character is put without considering | |
2211 | an ascent and descent value of a previous character. */); | |
810abb87 | 2212 | Vignore_relative_composition = Qnil; |
6a7e6d80 | 2213 | |
29208e82 | 2214 | DEFVAR_LISP ("alternate-fontname-alist", Valternate_fontname_alist, |
335c5470 PJ |
2215 | doc: /* Alist of fontname vs list of the alternate fontnames. |
2216 | When a specified font name is not found, the corresponding | |
2217 | alternate fontnames (if any) are tried instead. */); | |
01d4b817 | 2218 | Valternate_fontname_alist = Qnil; |
8c83e4f9 | 2219 | |
29208e82 | 2220 | DEFVAR_LISP ("fontset-alias-alist", Vfontset_alias_alist, |
335c5470 | 2221 | doc: /* Alist of fontset names vs the aliases. */); |
1ff005e1 | 2222 | Vfontset_alias_alist = Fcons (Fcons (FONTSET_NAME (Vdefault_fontset), |
d67b4f80 | 2223 | make_pure_c_string ("fontset-default")), |
1ff005e1 | 2224 | Qnil); |
1c283e35 | 2225 | |
810abb87 | 2226 | DEFVAR_LISP ("vertical-centering-font-regexp", |
29208e82 | 2227 | Vvertical_centering_font_regexp, |
335c5470 PJ |
2228 | doc: /* *Regexp matching font names that require vertical centering on display. |
2229 | When a character is displayed with such fonts, the character is displayed | |
fc8865fc | 2230 | at the vertical center of lines. */); |
810abb87 KH |
2231 | Vvertical_centering_font_regexp = Qnil; |
2232 | ||
29208e82 | 2233 | DEFVAR_LISP ("otf-script-alist", Votf_script_alist, |
21ff5ed6 KH |
2234 | doc: /* Alist of OpenType script tags vs the corresponding script names. */); |
2235 | Votf_script_alist = Qnil; | |
2236 | ||
4ed46869 KH |
2237 | defsubr (&Squery_fontset); |
2238 | defsubr (&Snew_fontset); | |
2239 | defsubr (&Sset_fontset_font); | |
1ff005e1 | 2240 | defsubr (&Sinternal_char_font); |
4ed46869 | 2241 | defsubr (&Sfontset_info); |
0d407d77 KH |
2242 | defsubr (&Sfontset_font); |
2243 | defsubr (&Sfontset_list); | |
452a78e0 KH |
2244 | #ifdef FONTSET_DEBUG |
2245 | defsubr (&Sfontset_list_all); | |
2246 | #endif | |
e3400864 | 2247 | } |