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 | 60 | #define xassert(X) do {if (!(X)) abort ();} while (0) |
8f924df7 KH |
61 | #else /* not FONTSET_DEBUG */ |
62 | #define xassert(X) (void) 0 | |
63 | #endif /* not FONTSET_DEBUG */ | |
0d407d77 | 64 | |
0d407d77 KH |
65 | /* FONTSET |
66 | ||
67 | A fontset is a collection of font related information to give | |
1d5d7200 KH |
68 | similar appearance (style, etc) of characters. A fontset has two |
69 | roles. One is to use for the frame parameter `font' as if it is an | |
70 | ASCII font. In that case, Emacs uses the font specified for | |
71 | `ascii' script for the frame's default font. | |
72 | ||
73 | Another role, the more important one, is to provide information | |
74 | about which font to use for each non-ASCII character. | |
75 | ||
76 | There are two kinds of fontsets; base and realized. A base fontset | |
77 | is created by `new-fontset' from Emacs Lisp explicitly. A realized | |
78 | fontset is created implicitly when a face is realized for ASCII | |
79 | characters. A face is also realized for non-ASCII characters based | |
80 | on an ASCII face. All of non-ASCII faces based on the same ASCII | |
81 | face share the same realized fontset. | |
8f924df7 | 82 | |
06f76f0d KH |
83 | A fontset object is implemented by a char-table whose default value |
84 | and parent are always nil. | |
fc8865fc | 85 | |
1d5d7200 KH |
86 | An element of a base fontset is a vector of FONT-DEFs which itself |
87 | is a vector [ FONT-SPEC ENCODING REPERTORY ]. | |
88 | ||
f088b054 KH |
89 | An element of a realized fontset is nil, t, 0, or a vector of this |
90 | form: | |
7e1a1cd9 | 91 | |
581f7ac7 KH |
92 | [ CHARSET-ORDERED-LIST-TICK PREFERRED-RFONT-DEF |
93 | RFONT-DEF0 RFONT-DEF1 ... ] | |
0d407d77 | 94 | |
7e1a1cd9 | 95 | RFONT-DEFn (i.e. Realized FONT-DEF) has this form: |
0d407d77 | 96 | |
581f7ac7 | 97 | [ FACE-ID FONT-DEF FONT-OBJECT SORTING-SCORE ] |
0d407d77 | 98 | |
581f7ac7 | 99 | RFONT-DEFn are automatically reordered by the current charset |
1d5d7200 | 100 | priority list. |
0d407d77 | 101 | |
7e1a1cd9 KH |
102 | The value nil means that we have not yet generated the above vector |
103 | from the base of the fontset. | |
0d407d77 | 104 | |
1d5d7200 KH |
105 | The value t means that no font is available for the corresponding |
106 | range of characters. | |
0d407d77 | 107 | |
f088b054 KH |
108 | The value 0 means that no font is available for the corresponding |
109 | range of characters in this fontset, but may be available in the | |
110 | default fontset. | |
111 | ||
0d407d77 | 112 | |
eb36588a | 113 | A fontset has 9 extra slots. |
0d407d77 | 114 | |
1d5d7200 | 115 | The 1st slot: the ID number of the fontset |
0d407d77 | 116 | |
1d5d7200 KH |
117 | The 2nd slot: |
118 | base: the name of the fontset | |
119 | realized: nil | |
0d407d77 | 120 | |
1d5d7200 | 121 | The 3rd slot: |
d6aaac9e | 122 | base: nil |
1d5d7200 | 123 | realized: the base fontset |
06f76f0d | 124 | |
1d5d7200 KH |
125 | The 4th slot: |
126 | base: nil | |
127 | realized: the frame that the fontset belongs to | |
0d407d77 | 128 | |
1d5d7200 KH |
129 | The 5th slot: |
130 | base: the font name for ASCII characters | |
131 | realized: nil | |
0d407d77 | 132 | |
1d5d7200 KH |
133 | The 6th slot: |
134 | base: nil | |
135 | realized: the ID number of a face to use for characters that | |
136 | has no font in a realized fontset. | |
0d407d77 | 137 | |
1d5d7200 KH |
138 | The 7th slot: |
139 | base: nil | |
140 | realized: Alist of font index vs the corresponding repertory | |
141 | char-table. | |
eb152aa9 | 142 | |
d6aaac9e KH |
143 | The 8th slot: |
144 | base: nil | |
145 | realized: If the base is not the default fontset, a fontset | |
146 | realized from the default fontset, else nil. | |
1d5d7200 | 147 | |
eb36588a | 148 | The 9th slot: |
cc7b6145 KH |
149 | base: Same as element value (but for fallback fonts). |
150 | realized: Likewise. | |
eb36588a | 151 | |
1d5d7200 | 152 | All fontsets are recorded in the vector Vfontset_table. |
0d407d77 KH |
153 | |
154 | ||
155 | DEFAULT FONTSET | |
156 | ||
1d5d7200 KH |
157 | There's a special base fontset named `default fontset' which |
158 | defines the default font specifications. When a base fontset | |
159 | doesn't specify a font for a specific character, the corresponding | |
160 | value in the default fontset is used. | |
0d407d77 | 161 | |
afe93d01 KH |
162 | The parent of a realized fontset created for such a face that has |
163 | no fontset is the default fontset. | |
0d407d77 KH |
164 | |
165 | ||
166 | These structures are hidden from the other codes than this file. | |
167 | The other codes handle fontsets only by their ID numbers. They | |
06f76f0d KH |
168 | usually use the variable name `fontset' for IDs. But, in this |
169 | file, we always use varialbe name `id' for IDs, and name `fontset' | |
1d5d7200 | 170 | for an actual fontset object, i.e., char-table. |
0d407d77 KH |
171 | |
172 | */ | |
173 | ||
174 | /********** VARIABLES and FUNCTION PROTOTYPES **********/ | |
175 | ||
d6aaac9e KH |
176 | static Lisp_Object Qfontset; |
177 | static Lisp_Object Qfontset_info; | |
1d5d7200 | 178 | static Lisp_Object Qprepend, Qappend; |
ef6e0694 | 179 | Lisp_Object Qlatin; |
0d407d77 KH |
180 | |
181 | /* Vector containing all fontsets. */ | |
182 | static Lisp_Object Vfontset_table; | |
183 | ||
fc8865fc | 184 | /* Next possibly free fontset ID. Usually this keeps the minimum |
0d407d77 KH |
185 | fontset ID not yet used. */ |
186 | static int next_fontset_id; | |
187 | ||
188 | /* The default fontset. This gives default FAMILY and REGISTRY of | |
06f76f0d | 189 | font for each character. */ |
0d407d77 | 190 | static Lisp_Object Vdefault_fontset; |
4ed46869 | 191 | |
4ed46869 | 192 | /* Check if any window system is used now. */ |
f57e2426 | 193 | void (*check_window_system_func) (void); |
4ed46869 | 194 | |
0d407d77 KH |
195 | |
196 | /* Prototype declarations for static functions. */ | |
f57e2426 J |
197 | static Lisp_Object fontset_add (Lisp_Object, Lisp_Object, Lisp_Object, |
198 | Lisp_Object); | |
199 | static Lisp_Object fontset_find_font (Lisp_Object, int, struct face *, | |
200 | int, int); | |
201 | static void reorder_font_vector (Lisp_Object, struct font *); | |
202 | static Lisp_Object fontset_font (Lisp_Object, int, struct face *, int); | |
203 | static Lisp_Object make_fontset (Lisp_Object, Lisp_Object, Lisp_Object); | |
204 | static Lisp_Object fontset_pattern_regexp (Lisp_Object); | |
205 | static void accumulate_script_ranges (Lisp_Object, Lisp_Object, | |
206 | Lisp_Object); | |
f57e2426 | 207 | static void set_fontset_font (Lisp_Object, Lisp_Object); |
2449d4d0 | 208 | |
556383ac KH |
209 | #ifdef FONTSET_DEBUG |
210 | ||
211 | /* Return 1 if ID is a valid fontset id, else return 0. */ | |
212 | ||
213 | static int | |
ef1b0ba7 | 214 | fontset_id_valid_p (int id) |
556383ac KH |
215 | { |
216 | return (id >= 0 && id < ASIZE (Vfontset_table) - 1); | |
217 | } | |
218 | ||
219 | #endif | |
220 | ||
0d407d77 KH |
221 | |
222 | \f | |
223 | /********** MACROS AND FUNCTIONS TO HANDLE FONTSET **********/ | |
224 | ||
0d407d77 KH |
225 | /* Return the fontset with ID. No check of ID's validness. */ |
226 | #define FONTSET_FROM_ID(id) AREF (Vfontset_table, id) | |
227 | ||
afe93d01 | 228 | /* Macros to access special values of FONTSET. */ |
0d407d77 | 229 | #define FONTSET_ID(fontset) XCHAR_TABLE (fontset)->extras[0] |
06f76f0d KH |
230 | |
231 | /* Macros to access special values of (base) FONTSET. */ | |
0d407d77 | 232 | #define FONTSET_NAME(fontset) XCHAR_TABLE (fontset)->extras[1] |
06f76f0d | 233 | #define FONTSET_ASCII(fontset) XCHAR_TABLE (fontset)->extras[4] |
a9a06e0b | 234 | /* #define FONTSET_SPEC(fontset) XCHAR_TABLE (fontset)->extras[5] */ |
06f76f0d | 235 | |
06f76f0d KH |
236 | /* Macros to access special values of (realized) FONTSET. */ |
237 | #define FONTSET_BASE(fontset) XCHAR_TABLE (fontset)->extras[2] | |
238 | #define FONTSET_FRAME(fontset) XCHAR_TABLE (fontset)->extras[3] | |
239f9db9 | 239 | /* #define FONTSET_OBJLIST(fontset) XCHAR_TABLE (fontset)->extras[4] */ |
1d5d7200 | 240 | #define FONTSET_NOFONT_FACE(fontset) XCHAR_TABLE (fontset)->extras[5] |
a9a06e0b | 241 | /* #define FONTSET_REPERTORY(fontset) XCHAR_TABLE (fontset)->extras[6] */ |
eb36588a KH |
242 | #define FONTSET_DEFAULT(fontset) XCHAR_TABLE (fontset)->extras[7] |
243 | ||
cc7b6145 | 244 | /* For both base and realized fontset. */ |
eb36588a | 245 | #define FONTSET_FALLBACK(fontset) XCHAR_TABLE (fontset)->extras[8] |
0d407d77 | 246 | |
e3400864 | 247 | #define BASE_FONTSET_P(fontset) (NILP (FONTSET_BASE (fontset))) |
0d407d77 KH |
248 | |
249 | ||
581f7ac7 KH |
250 | /* Macros for FONT-DEF and RFONT-DEF of fontset. */ |
251 | #define FONT_DEF_NEW(font_def, font_spec, encoding, repertory) \ | |
252 | do { \ | |
253 | (font_def) = Fmake_vector (make_number (3), (font_spec)); \ | |
254 | ASET ((font_def), 1, encoding); \ | |
255 | ASET ((font_def), 2, repertory); \ | |
256 | } while (0) | |
257 | ||
258 | #define FONT_DEF_SPEC(font_def) AREF (font_def, 0) | |
259 | #define FONT_DEF_ENCODING(font_def) AREF (font_def, 1) | |
260 | #define FONT_DEF_REPERTORY(font_def) AREF (font_def, 2) | |
261 | ||
262 | #define RFONT_DEF_FACE(rfont_def) AREF (rfont_def, 0) | |
263 | #define RFONT_DEF_SET_FACE(rfont_def, face_id) \ | |
264 | ASET ((rfont_def), 0, make_number (face_id)) | |
265 | #define RFONT_DEF_FONT_DEF(rfont_def) AREF (rfont_def, 1) | |
266 | #define RFONT_DEF_SPEC(rfont_def) FONT_DEF_SPEC (AREF (rfont_def, 1)) | |
581f7ac7 KH |
267 | #define RFONT_DEF_OBJECT(rfont_def) AREF (rfont_def, 2) |
268 | #define RFONT_DEF_SET_OBJECT(rfont_def, object) \ | |
269 | ASET ((rfont_def), 2, (object)) | |
9dfdbc0a KH |
270 | /* Score of RFONT_DEF is an integer value; the lowest 8 bits represent |
271 | the order of listing by font backends, the higher bits represents | |
272 | the order given by charset priority list. The smaller value is | |
273 | preferable. */ | |
581f7ac7 KH |
274 | #define RFONT_DEF_SCORE(rfont_def) XINT (AREF (rfont_def, 3)) |
275 | #define RFONT_DEF_SET_SCORE(rfont_def, score) \ | |
276 | ASET ((rfont_def), 3, make_number (score)) | |
277 | #define RFONT_DEF_NEW(rfont_def, font_def) \ | |
278 | do { \ | |
279 | (rfont_def) = Fmake_vector (make_number (4), Qnil); \ | |
280 | ASET ((rfont_def), 1, (font_def)); \ | |
281 | RFONT_DEF_SET_SCORE ((rfont_def), 0); \ | |
282 | } while (0) | |
283 | ||
284 | ||
1d5d7200 KH |
285 | /* Return the element of FONTSET for the character C. If FONTSET is a |
286 | base fontset other then the default fontset and FONTSET doesn't | |
287 | contain information for C, return the information in the default | |
288 | fontset. */ | |
0d407d77 | 289 | |
1d5d7200 KH |
290 | #define FONTSET_REF(fontset, c) \ |
291 | (EQ (fontset, Vdefault_fontset) \ | |
292 | ? CHAR_TABLE_REF (fontset, c) \ | |
293 | : fontset_ref ((fontset), (c))) | |
0d407d77 | 294 | |
afe93d01 | 295 | static Lisp_Object |
971de7fb | 296 | fontset_ref (Lisp_Object fontset, int c) |
0d407d77 | 297 | { |
06f76f0d KH |
298 | Lisp_Object elt; |
299 | ||
1d5d7200 KH |
300 | elt = CHAR_TABLE_REF (fontset, c); |
301 | if (NILP (elt) && ! EQ (fontset, Vdefault_fontset) | |
302 | /* Don't check Vdefault_fontset for a realized fontset. */ | |
303 | && NILP (FONTSET_BASE (fontset))) | |
304 | elt = CHAR_TABLE_REF (Vdefault_fontset, c); | |
0d407d77 KH |
305 | return elt; |
306 | } | |
307 | ||
1d5d7200 KH |
308 | /* Set elements of FONTSET for characters in RANGE to the value ELT. |
309 | RANGE is a cons (FROM . TO), where FROM and TO are character codes | |
310 | specifying a range. */ | |
311 | ||
312 | #define FONTSET_SET(fontset, range, elt) \ | |
313 | Fset_char_table_range ((fontset), (range), (elt)) | |
314 | ||
0d407d77 | 315 | |
1d5d7200 | 316 | /* Modify the elements of FONTSET for characters in RANGE by replacing |
6bad8007 | 317 | with ELT or adding ELT. RANGE is a cons (FROM . TO), where FROM |
1d5d7200 KH |
318 | and TO are character codes specifying a range. If ADD is nil, |
319 | replace with ELT, if ADD is `prepend', prepend ELT, otherwise, | |
320 | append ELT. */ | |
321 | ||
cc7b6145 KH |
322 | #define FONTSET_ADD(fontset, range, elt, add) \ |
323 | (NILP (add) \ | |
324 | ? (NILP (range) \ | |
325 | ? (FONTSET_FALLBACK (fontset) = Fmake_vector (make_number (1), (elt))) \ | |
326 | : Fset_char_table_range ((fontset), (range), \ | |
327 | Fmake_vector (make_number (1), (elt)))) \ | |
1d5d7200 | 328 | : fontset_add ((fontset), (range), (elt), (add))) |
0d407d77 | 329 | |
b11a4ed7 | 330 | static Lisp_Object |
971de7fb | 331 | fontset_add (Lisp_Object fontset, Lisp_Object range, Lisp_Object elt, Lisp_Object add) |
06f76f0d | 332 | { |
eb36588a KH |
333 | Lisp_Object args[2]; |
334 | int idx = (EQ (add, Qappend) ? 0 : 1); | |
335 | ||
336 | args[1 - idx] = Fmake_vector (make_number (1), elt); | |
337 | ||
338 | if (CONSP (range)) | |
339 | { | |
340 | int from = XINT (XCAR (range)); | |
341 | int to = XINT (XCDR (range)); | |
342 | int from1, to1; | |
343 | ||
344 | do { | |
5b30be1a | 345 | from1 = from, to1 = to; |
eb36588a | 346 | args[idx] = char_table_ref_and_range (fontset, from, &from1, &to1); |
eb36588a KH |
347 | char_table_set_range (fontset, from, to1, |
348 | NILP (args[idx]) ? args[1 - idx] | |
349 | : Fvconcat (2, args)); | |
350 | from = to1 + 1; | |
351 | } while (from < to); | |
352 | } | |
353 | else | |
354 | { | |
355 | args[idx] = FONTSET_FALLBACK (fontset); | |
356 | FONTSET_FALLBACK (fontset) | |
357 | = NILP (args[idx]) ? args[1 - idx] : Fvconcat (2, args); | |
358 | } | |
b11a4ed7 | 359 | return Qnil; |
1d5d7200 KH |
360 | } |
361 | ||
581f7ac7 | 362 | static int |
971de7fb | 363 | fontset_compare_rfontdef (const void *val1, const void *val2) |
581f7ac7 | 364 | { |
41ad6003 KH |
365 | return (RFONT_DEF_SCORE (*(Lisp_Object *) val1) |
366 | - RFONT_DEF_SCORE (*(Lisp_Object *) val2)); | |
581f7ac7 | 367 | } |
1d5d7200 | 368 | |
ea0162a6 | 369 | /* Update FONT-GROUP which has this form: |
581f7ac7 KH |
370 | [ CHARSET-ORDERED-LIST-TICK PREFERRED-RFONT-DEF |
371 | RFONT-DEF0 RFONT-DEF1 ... ] | |
20746fe4 | 372 | Reorder RFONT-DEFs according to the current language, and update |
581f7ac7 KH |
373 | CHARSET-ORDERED-LIST-TICK. |
374 | ||
375 | If PREFERRED_FAMILY is not nil, that family has the higher priority | |
376 | if the encoding charsets or languages in font-specs are the same. */ | |
377 | ||
0d407d77 | 378 | static void |
971de7fb | 379 | reorder_font_vector (Lisp_Object font_group, struct font *font) |
1d5d7200 | 380 | { |
41ad6003 | 381 | Lisp_Object vec, font_object; |
1d5d7200 | 382 | int size; |
581f7ac7 KH |
383 | int i; |
384 | int score_changed = 0; | |
1d5d7200 | 385 | |
41ad6003 KH |
386 | if (font) |
387 | XSETFONT (font_object, font); | |
388 | else | |
389 | font_object = Qnil; | |
390 | ||
391 | vec = XCDR (font_group); | |
392 | size = ASIZE (vec); | |
393 | /* Exclude the tailing nil element from the reordering. */ | |
394 | if (NILP (AREF (vec, size - 1))) | |
395 | size--; | |
581f7ac7 KH |
396 | |
397 | for (i = 0; i < size; i++) | |
6bad8007 | 398 | { |
41ad6003 | 399 | Lisp_Object rfont_def = AREF (vec, i); |
581f7ac7 KH |
400 | Lisp_Object font_def = RFONT_DEF_FONT_DEF (rfont_def); |
401 | Lisp_Object font_spec = FONT_DEF_SPEC (font_def); | |
41ad6003 | 402 | int score = RFONT_DEF_SCORE (rfont_def) & 0xFF; |
9dfdbc0a | 403 | Lisp_Object otf_spec = Ffont_get (font_spec, QCotf); |
581f7ac7 | 404 | |
9dfdbc0a KH |
405 | if (! NILP (otf_spec)) |
406 | /* A font-spec with :otf is preferable regardless of encoding | |
407 | and language.. */ | |
408 | ; | |
409 | else if (! font_match_p (font_spec, font_object)) | |
eb152aa9 | 410 | { |
cd872f08 | 411 | Lisp_Object encoding = FONT_DEF_ENCODING (font_def); |
581f7ac7 | 412 | |
cd872f08 | 413 | if (! NILP (encoding)) |
41ad6003 KH |
414 | { |
415 | Lisp_Object tail; | |
581f7ac7 | 416 | |
41ad6003 KH |
417 | for (tail = Vcharset_ordered_list; |
418 | ! EQ (tail, Vcharset_non_preferred_head) && CONSP (tail); | |
419 | score += 0x100, tail = XCDR (tail)) | |
cd872f08 | 420 | if (EQ (encoding, XCAR (tail))) |
41ad6003 KH |
421 | break; |
422 | } | |
423 | else | |
424 | { | |
425 | Lisp_Object lang = Ffont_get (font_spec, QClang); | |
426 | ||
427 | if (! NILP (lang) | |
428 | && ! EQ (lang, Vcurrent_iso639_language) | |
429 | && (! CONSP (Vcurrent_iso639_language) | |
430 | || NILP (Fmemq (lang, Vcurrent_iso639_language)))) | |
431 | score |= 0x100; | |
432 | } | |
ea0162a6 | 433 | } |
581f7ac7 | 434 | if (RFONT_DEF_SCORE (rfont_def) != score) |
ea0162a6 | 435 | { |
581f7ac7 KH |
436 | RFONT_DEF_SET_SCORE (rfont_def, score); |
437 | score_changed = 1; | |
ea0162a6 | 438 | } |
6bad8007 | 439 | } |
1d5d7200 | 440 | |
581f7ac7 | 441 | if (score_changed) |
41ad6003 | 442 | qsort (XVECTOR (vec)->contents, size, sizeof (Lisp_Object), |
581f7ac7 | 443 | fontset_compare_rfontdef); |
41ad6003 KH |
444 | XSETCAR (font_group, make_number (charset_ordered_list_tick)); |
445 | } | |
446 | ||
f084f942 KH |
447 | /* Return a font-group (actually a cons (-1 . FONT-GROUP-VECTOR)) for |
448 | character C in FONTSET. If C is -1, return a fallback font-group. | |
449 | If C is not -1, the value may be Qt (FONTSET doesn't have a font | |
450 | for C even in the fallback group, or 0 (a font for C may be found | |
451 | only in the fallback group). */ | |
452 | ||
41ad6003 | 453 | static Lisp_Object |
3cba9369 | 454 | fontset_get_font_group (Lisp_Object fontset, int c) |
41ad6003 KH |
455 | { |
456 | Lisp_Object font_group; | |
457 | Lisp_Object base_fontset; | |
5b30be1a | 458 | int from = 0, to = MAX_CHAR, i; |
28e2436a | 459 | |
41ad6003 KH |
460 | xassert (! BASE_FONTSET_P (fontset)); |
461 | if (c >= 0) | |
462 | font_group = CHAR_TABLE_REF (fontset, c); | |
463 | else | |
464 | font_group = FONTSET_FALLBACK (fontset); | |
465 | if (! NILP (font_group)) | |
466 | return font_group; | |
467 | base_fontset = FONTSET_BASE (fontset); | |
468 | if (c >= 0) | |
469 | font_group = char_table_ref_and_range (base_fontset, c, &from, &to); | |
470 | else | |
471 | font_group = FONTSET_FALLBACK (base_fontset); | |
472 | if (NILP (font_group)) | |
f088b054 | 473 | { |
f084f942 | 474 | font_group = make_number (0); |
f088b054 | 475 | if (c >= 0) |
f084f942 KH |
476 | char_table_set_range (fontset, from, to, font_group); |
477 | return font_group; | |
f088b054 | 478 | } |
41ad6003 KH |
479 | font_group = Fcopy_sequence (font_group); |
480 | for (i = 0; i < ASIZE (font_group); i++) | |
481 | if (! NILP (AREF (font_group, i))) | |
482 | { | |
483 | Lisp_Object rfont_def; | |
484 | ||
485 | RFONT_DEF_NEW (rfont_def, AREF (font_group, i)); | |
486 | /* Remember the original order. */ | |
487 | RFONT_DEF_SET_SCORE (rfont_def, i); | |
488 | ASET (font_group, i, rfont_def); | |
489 | } | |
490 | font_group = Fcons (make_number (-1), font_group); | |
491 | if (c >= 0) | |
492 | char_table_set_range (fontset, from, to, font_group); | |
493 | else | |
494 | FONTSET_FALLBACK (fontset) = font_group; | |
495 | return font_group; | |
0d407d77 KH |
496 | } |
497 | ||
7e1a1cd9 | 498 | /* Return RFONT-DEF (vector) in the realized fontset FONTSET for the |
d67f7f1a KH |
499 | character C. If no font is found, return Qnil if there's a |
500 | possibility that the default fontset or the fallback font groups | |
501 | have a proper font, and return Qt if not. | |
502 | ||
503 | If a font is found but is not yet opened, open it (if FACE is not | |
504 | NULL) or return Qnil (if FACE is NULL). | |
505 | ||
1c82b4b3 KH |
506 | ID is a charset-id that must be preferred, or -1 meaning no |
507 | preference. | |
d67f7f1a | 508 | |
ea0162a6 | 509 | If FALLBACK is nonzero, search only fallback fonts. */ |
0d407d77 | 510 | |
7e1a1cd9 | 511 | static Lisp_Object |
971de7fb | 512 | fontset_find_font (Lisp_Object fontset, int c, struct face *face, int id, int fallback) |
0d407d77 | 513 | { |
162f5458 | 514 | Lisp_Object vec, font_group; |
374bf7e4 | 515 | int i, charset_matched = 0, found_index; |
2a1ef5be KH |
516 | FRAME_PTR f = (FRAMEP (FONTSET_FRAME (fontset)) |
517 | ? XFRAME (FONTSET_FRAME (fontset)) : XFRAME (selected_frame)); | |
a71ccf3a | 518 | Lisp_Object rfont_def; |
0d407d77 | 519 | |
41ad6003 KH |
520 | font_group = fontset_get_font_group (fontset, fallback ? -1 : c); |
521 | if (! CONSP (font_group)) | |
bf86d09c | 522 | return font_group; |
41ad6003 KH |
523 | vec = XCDR (font_group); |
524 | if (ASIZE (vec) == 0) | |
525 | return Qnil; | |
eaa0402c | 526 | |
41ad6003 | 527 | if (ASIZE (vec) > 1) |
1d5d7200 | 528 | { |
41ad6003 KH |
529 | if (XINT (XCAR (font_group)) != charset_ordered_list_tick) |
530 | /* We have just created the font-group, | |
531 | or the charset priorities were changed. */ | |
532 | reorder_font_vector (font_group, face->ascii_face->font); | |
533 | if (id >= 0) | |
534 | /* Find a spec matching with the charset ID to try at | |
535 | first. */ | |
536 | for (i = 0; i < ASIZE (vec); i++) | |
537 | { | |
0ff75233 KH |
538 | Lisp_Object repertory; |
539 | ||
a71ccf3a | 540 | rfont_def = AREF (vec, i); |
0ff75233 KH |
541 | if (NILP (rfont_def)) |
542 | break; | |
543 | repertory = FONT_DEF_REPERTORY (RFONT_DEF_FONT_DEF (rfont_def)); | |
41ad6003 KH |
544 | |
545 | if (XINT (repertory) == id) | |
eaa0402c | 546 | { |
41ad6003 | 547 | charset_matched = i; |
581f7ac7 | 548 | break; |
41ad6003 KH |
549 | } |
550 | } | |
581f7ac7 | 551 | } |
1d5d7200 | 552 | |
7e1a1cd9 | 553 | /* Find the first available font in the vector of RFONT-DEF. */ |
41ad6003 | 554 | for (i = 0; i < ASIZE (vec); i++) |
0d407d77 | 555 | { |
a71ccf3a | 556 | Lisp_Object font_def; |
dbf46ba6 | 557 | Lisp_Object font_entity, font_object; |
581f7ac7 | 558 | |
635c75b1 | 559 | found_index = i; |
374bf7e4 | 560 | if (i == 0) |
41ad6003 | 561 | { |
374bf7e4 KH |
562 | if (charset_matched > 0) |
563 | { | |
635c75b1 KH |
564 | /* Try the element matching with the charset ID at first. */ |
565 | found_index = charset_matched; | |
566 | /* Make this negative so that we don't come here in the | |
567 | next loop. */ | |
374bf7e4 | 568 | charset_matched = - charset_matched; |
635c75b1 | 569 | /* We must try the first element in the next loop. */ |
374bf7e4 KH |
570 | i--; |
571 | } | |
41ad6003 | 572 | } |
635c75b1 | 573 | else if (i == - charset_matched) |
374bf7e4 KH |
574 | { |
575 | /* We have already tried this element and the followings | |
635c75b1 KH |
576 | that have the same font specifications in the first |
577 | iteration. So, skip them all. */ | |
374bf7e4 KH |
578 | rfont_def = AREF (vec, i); |
579 | font_def = RFONT_DEF_FONT_DEF (rfont_def); | |
580 | for (; i + 1 < ASIZE (vec); i++) | |
581 | { | |
582 | rfont_def = AREF (vec, i + 1); | |
583 | if (NILP (rfont_def)) | |
584 | break; | |
585 | if (! EQ (RFONT_DEF_FONT_DEF (rfont_def), font_def)) | |
586 | break; | |
587 | } | |
588 | continue; | |
589 | } | |
41ad6003 | 590 | |
374bf7e4 | 591 | rfont_def = AREF (vec, found_index); |
162f5458 | 592 | if (NILP (rfont_def)) |
374bf7e4 | 593 | { |
635c75b1 | 594 | if (i < 0) |
374bf7e4 KH |
595 | continue; |
596 | /* This is a sign of not to try the other fonts. */ | |
597 | return Qt; | |
598 | } | |
162f5458 KH |
599 | if (INTEGERP (RFONT_DEF_FACE (rfont_def)) |
600 | && XINT (RFONT_DEF_FACE (rfont_def)) < 0) | |
1d5d7200 KH |
601 | /* We couldn't open this font last time. */ |
602 | continue; | |
603 | ||
162f5458 | 604 | font_object = RFONT_DEF_OBJECT (rfont_def); |
581f7ac7 | 605 | if (NILP (font_object)) |
8aa07a8d | 606 | { |
162f5458 | 607 | font_def = RFONT_DEF_FONT_DEF (rfont_def); |
d67f7f1a | 608 | |
581f7ac7 KH |
609 | if (! face) |
610 | /* We have not yet opened the font. */ | |
611 | return Qnil; | |
162f5458 KH |
612 | /* Find a font best-matching with the spec without checking |
613 | the support of the character C. That checking is costly, | |
614 | and even without the checking, the found font supports C | |
615 | in high possibility. */ | |
581f7ac7 KH |
616 | font_entity = font_find_for_lface (f, face->lface, |
617 | FONT_DEF_SPEC (font_def), -1); | |
d67f7f1a | 618 | if (NILP (font_entity)) |
8b67c40a | 619 | { |
581f7ac7 | 620 | /* Record that no font matches the spec. */ |
162f5458 | 621 | RFONT_DEF_SET_FACE (rfont_def, -1); |
581f7ac7 | 622 | continue; |
d67f7f1a | 623 | } |
ca2b2cde KH |
624 | font_object = font_open_for_lface (f, font_entity, face->lface, |
625 | FONT_DEF_SPEC (font_def)); | |
581f7ac7 | 626 | if (NILP (font_object)) |
d67f7f1a | 627 | { |
162f5458 KH |
628 | /* Something strange happened, perhaps because of a |
629 | Font-backend problem. Too avoid crashing, record | |
630 | that this spec is unsable. It may be better to find | |
631 | another font of the same spec, but currently we don't | |
632 | have such an API. */ | |
633 | RFONT_DEF_SET_FACE (rfont_def, -1); | |
581f7ac7 | 634 | continue; |
8aa07a8d | 635 | } |
162f5458 | 636 | RFONT_DEF_SET_OBJECT (rfont_def, font_object); |
8aa07a8d | 637 | } |
eb152aa9 | 638 | |
581f7ac7 | 639 | if (font_has_char (f, font_object, c)) |
a71ccf3a | 640 | goto found; |
581f7ac7 | 641 | |
162f5458 KH |
642 | /* Find a font already opened, maching with the current spec, |
643 | and supporting C. */ | |
644 | font_def = RFONT_DEF_FONT_DEF (rfont_def); | |
374bf7e4 | 645 | for (; found_index + 1 < ASIZE (vec); found_index++) |
57e13af9 | 646 | { |
374bf7e4 | 647 | rfont_def = AREF (vec, found_index + 1); |
7d72bb82 | 648 | if (NILP (rfont_def)) |
374bf7e4 | 649 | break; |
162f5458 | 650 | if (! EQ (RFONT_DEF_FONT_DEF (rfont_def), font_def)) |
581f7ac7 | 651 | break; |
374bf7e4 | 652 | font_object = RFONT_DEF_OBJECT (rfont_def); |
69a8e484 | 653 | if (! NILP (font_object) && font_has_char (f, font_object, c)) |
374bf7e4 KH |
654 | { |
655 | found_index++; | |
656 | goto found; | |
657 | } | |
57e13af9 | 658 | } |
162f5458 KH |
659 | |
660 | /* Find a font-entity with the current spec and supporting C. */ | |
581f7ac7 KH |
661 | font_entity = font_find_for_lface (f, face->lface, |
662 | FONT_DEF_SPEC (font_def), c); | |
663 | if (! NILP (font_entity)) | |
1d5d7200 | 664 | { |
162f5458 KH |
665 | /* We found a font. Open it and insert a new element for |
666 | that font in VEC. */ | |
667 | Lisp_Object new_vec; | |
581f7ac7 | 668 | int j; |
1d5d7200 | 669 | |
581f7ac7 KH |
670 | font_object = font_open_for_lface (f, font_entity, face->lface, |
671 | Qnil); | |
162f5458 KH |
672 | if (NILP (font_object)) |
673 | continue; | |
581f7ac7 KH |
674 | RFONT_DEF_NEW (rfont_def, font_def); |
675 | RFONT_DEF_SET_OBJECT (rfont_def, font_object); | |
162f5458 | 676 | RFONT_DEF_SET_SCORE (rfont_def, RFONT_DEF_SCORE (rfont_def)); |
581f7ac7 | 677 | new_vec = Fmake_vector (make_number (ASIZE (vec) + 1), Qnil); |
374bf7e4 KH |
678 | found_index++; |
679 | for (j = 0; j < found_index; j++) | |
581f7ac7 KH |
680 | ASET (new_vec, j, AREF (vec, j)); |
681 | ASET (new_vec, j, rfont_def); | |
682 | for (j++; j < ASIZE (new_vec); j++) | |
683 | ASET (new_vec, j, AREF (vec, j - 1)); | |
162f5458 | 684 | XSETCDR (font_group, new_vec); |
a71ccf3a KH |
685 | vec = new_vec; |
686 | goto found; | |
1d5d7200 | 687 | } |
374bf7e4 KH |
688 | if (i >= 0) |
689 | i = found_index; | |
0d407d77 | 690 | } |
d67f7f1a | 691 | |
581f7ac7 | 692 | FONTSET_SET (fontset, make_number (c), make_number (0)); |
eaa0402c | 693 | return Qnil; |
a71ccf3a KH |
694 | |
695 | found: | |
696 | if (fallback && found_index > 0) | |
697 | { | |
698 | /* The order of fonts in the fallback font-group is not that | |
699 | important, and it is better to move the found font to the | |
700 | first of the group so that the next try will find it | |
701 | quickly. */ | |
702 | for (i = found_index; i > 0; i--) | |
703 | ASET (vec, i, AREF (vec, i - 1)); | |
704 | ASET (vec, 0, rfont_def); | |
705 | } | |
706 | return rfont_def; | |
1c82b4b3 | 707 | } |
0d407d77 | 708 | |
cc7b6145 | 709 | |
1c82b4b3 | 710 | static Lisp_Object |
971de7fb | 711 | fontset_font (Lisp_Object fontset, int c, struct face *face, int id) |
1c82b4b3 | 712 | { |
cc6e5db1 | 713 | Lisp_Object rfont_def, default_rfont_def IF_LINT (= Qnil); |
1c82b4b3 | 714 | Lisp_Object base_fontset; |
cc7b6145 | 715 | |
41ad6003 | 716 | /* Try a font-group of FONTSET. */ |
b23bf85a | 717 | FONT_DEFERRED_LOG ("current fontset: font for", make_number (c), Qnil); |
1c82b4b3 | 718 | rfont_def = fontset_find_font (fontset, c, face, id, 0); |
eaa0402c KH |
719 | if (VECTORP (rfont_def)) |
720 | return rfont_def; | |
f084f942 KH |
721 | if (NILP (rfont_def)) |
722 | FONTSET_SET (fontset, make_number (c), make_number (0)); | |
41ad6003 KH |
723 | |
724 | /* Try a font-group of the default fontset. */ | |
725 | base_fontset = FONTSET_BASE (fontset); | |
726 | if (! EQ (base_fontset, Vdefault_fontset)) | |
727 | { | |
728 | if (NILP (FONTSET_DEFAULT (fontset))) | |
729 | FONTSET_DEFAULT (fontset) | |
730 | = make_fontset (FONTSET_FRAME (fontset), Qnil, Vdefault_fontset); | |
b23bf85a | 731 | FONT_DEFERRED_LOG ("default fontset: font for", make_number (c), Qnil); |
f084f942 KH |
732 | default_rfont_def |
733 | = fontset_find_font (FONTSET_DEFAULT (fontset), c, face, id, 0); | |
734 | if (VECTORP (default_rfont_def)) | |
735 | return default_rfont_def; | |
736 | if (NILP (default_rfont_def)) | |
737 | FONTSET_SET (FONTSET_DEFAULT (fontset), make_number (c), | |
738 | make_number (0)); | |
41ad6003 KH |
739 | } |
740 | ||
741 | /* Try a fallback font-group of FONTSET. */ | |
f084f942 KH |
742 | if (! EQ (rfont_def, Qt)) |
743 | { | |
744 | FONT_DEFERRED_LOG ("current fallback: font for", make_number (c), Qnil); | |
745 | rfont_def = fontset_find_font (fontset, c, face, id, 1); | |
746 | if (VECTORP (rfont_def)) | |
747 | return rfont_def; | |
748 | /* Remember that FONTSET has no font for C. */ | |
749 | FONTSET_SET (fontset, make_number (c), Qt); | |
750 | } | |
d67f7f1a | 751 | |
f084f942 KH |
752 | /* Try a fallback font-group of the default fontset. */ |
753 | if (! EQ (base_fontset, Vdefault_fontset) | |
754 | && ! EQ (default_rfont_def, Qt)) | |
41ad6003 | 755 | { |
b23bf85a | 756 | FONT_DEFERRED_LOG ("default fallback: font for", make_number (c), Qnil); |
41ad6003 KH |
757 | rfont_def = fontset_find_font (FONTSET_DEFAULT (fontset), c, face, id, 1); |
758 | if (VECTORP (rfont_def)) | |
759 | return rfont_def; | |
f084f942 KH |
760 | /* Remember that the default fontset has no font for C. */ |
761 | FONTSET_SET (FONTSET_DEFAULT (fontset), make_number (c), Qt); | |
41ad6003 KH |
762 | } |
763 | ||
41ad6003 | 764 | return Qnil; |
0d407d77 KH |
765 | } |
766 | ||
0d407d77 | 767 | /* Return a newly created fontset with NAME. If BASE is nil, make a |
06f76f0d | 768 | base fontset. Otherwise make a realized fontset whose base is |
0d407d77 KH |
769 | BASE. */ |
770 | ||
771 | static Lisp_Object | |
971de7fb | 772 | make_fontset (Lisp_Object frame, Lisp_Object name, Lisp_Object base) |
4ed46869 | 773 | { |
1337ac77 | 774 | Lisp_Object fontset; |
0d407d77 KH |
775 | int size = ASIZE (Vfontset_table); |
776 | int id = next_fontset_id; | |
0d407d77 KH |
777 | |
778 | /* Find a free slot in Vfontset_table. Usually, next_fontset_id is | |
779 | the next available fontset ID. So it is expected that this loop | |
780 | terminates quickly. In addition, as the last element of | |
fc8865fc | 781 | Vfontset_table is always nil, we don't have to check the range of |
0d407d77 KH |
782 | id. */ |
783 | while (!NILP (AREF (Vfontset_table, id))) id++; | |
784 | ||
785 | if (id + 1 == size) | |
63655c83 | 786 | Vfontset_table = larger_vector (Vfontset_table, size + 32, Qnil); |
4ed46869 | 787 | |
11d9bd93 | 788 | fontset = Fmake_char_table (Qfontset, Qnil); |
0d407d77 KH |
789 | |
790 | FONTSET_ID (fontset) = make_number (id); | |
06f76f0d KH |
791 | if (NILP (base)) |
792 | { | |
793 | FONTSET_NAME (fontset) = name; | |
794 | } | |
795 | else | |
796 | { | |
797 | FONTSET_NAME (fontset) = Qnil; | |
798 | FONTSET_FRAME (fontset) = frame; | |
799 | FONTSET_BASE (fontset) = base; | |
800 | } | |
0d407d77 | 801 | |
06f76f0d | 802 | ASET (Vfontset_table, id, fontset); |
0d407d77 KH |
803 | next_fontset_id = id + 1; |
804 | return fontset; | |
4ed46869 KH |
805 | } |
806 | ||
0d407d77 | 807 | \f |
1d5d7200 | 808 | /********** INTERFACES TO xfaces.c, xfns.c, and dispextern.h **********/ |
0d407d77 | 809 | |
1d5d7200 | 810 | /* Return the name of the fontset who has ID. */ |
0d407d77 KH |
811 | |
812 | Lisp_Object | |
971de7fb | 813 | fontset_name (int id) |
0d407d77 KH |
814 | { |
815 | Lisp_Object fontset; | |
06f76f0d | 816 | |
0d407d77 KH |
817 | fontset = FONTSET_FROM_ID (id); |
818 | return FONTSET_NAME (fontset); | |
819 | } | |
820 | ||
821 | ||
1d5d7200 | 822 | /* Return the ASCII font name of the fontset who has ID. */ |
0d407d77 KH |
823 | |
824 | Lisp_Object | |
971de7fb | 825 | fontset_ascii (int id) |
0d407d77 KH |
826 | { |
827 | Lisp_Object fontset, elt; | |
06f76f0d | 828 | |
0d407d77 KH |
829 | fontset= FONTSET_FROM_ID (id); |
830 | elt = FONTSET_ASCII (fontset); | |
8aa07a8d KH |
831 | if (CONSP (elt)) |
832 | elt = XCAR (elt); | |
1d5d7200 | 833 | return elt; |
0d407d77 KH |
834 | } |
835 | ||
a5c0af81 | 836 | static void |
971de7fb | 837 | free_realized_fontset (FRAME_PTR f, Lisp_Object fontset) |
9459b1e9 | 838 | { |
239f9db9 | 839 | #if 0 |
9459b1e9 KH |
840 | Lisp_Object tail; |
841 | ||
97be3ce3 PE |
842 | if (0) |
843 | for (tail = FONTSET_OBJLIST (fontset); CONSP (tail); tail = XCDR (tail)) | |
844 | { | |
845 | xassert (FONT_OBJECT_P (XCAR (tail))); | |
846 | font_close_object (f, XCAR (tail)); | |
847 | } | |
239f9db9 | 848 | #endif |
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 | |
239f9db9 | 884 | #if 0 |
e0f24100 | 885 | /* Return 1 if FACE is suitable for displaying character C. |
0d407d77 | 886 | Otherwise return 0. Called from the macro FACE_SUITABLE_FOR_CHAR_P |
06f76f0d | 887 | when C is not an ASCII character. */ |
0d407d77 KH |
888 | |
889 | int | |
971de7fb | 890 | face_suitable_for_char_p (struct face *face, int c) |
0d407d77 | 891 | { |
7e1a1cd9 | 892 | Lisp_Object fontset, rfont_def; |
0d407d77 | 893 | |
0d407d77 | 894 | fontset = FONTSET_FROM_ID (face->fontset); |
7e1a1cd9 KH |
895 | rfont_def = fontset_font (fontset, c, NULL, -1); |
896 | return (VECTORP (rfont_def) | |
581f7ac7 KH |
897 | && INTEGERP (RFONT_DEF_FACE (rfont_def)) |
898 | && face->id == XINT (RFONT_DEF_FACE (rfont_def))); | |
0d407d77 | 899 | } |
239f9db9 | 900 | #endif |
0d407d77 KH |
901 | |
902 | ||
903 | /* Return ID of face suitable for displaying character C on frame F. | |
1d5d7200 KH |
904 | FACE must be reazlied for ASCII characters in advance. Called from |
905 | the macro FACE_FOR_CHAR. */ | |
0d407d77 KH |
906 | |
907 | int | |
971de7fb | 908 | face_for_char (FRAME_PTR f, struct face *face, int c, int pos, Lisp_Object object) |
0d407d77 | 909 | { |
303d5190 | 910 | Lisp_Object fontset, rfont_def, charset; |
7e1a1cd9 | 911 | int face_id; |
6bad8007 | 912 | int id; |
1d5d7200 | 913 | |
ea217c11 KH |
914 | /* If face->fontset is negative (that happens when no font is found |
915 | for face), just return face->ascii_face because we can't do | |
916 | anything. Perhaps, we should fix the callers to assure | |
917 | that face->fontset is always valid. */ | |
918 | if (ASCII_CHAR_P (c) || face->fontset < 0) | |
1d5d7200 | 919 | return face->ascii_face->id; |
0d407d77 KH |
920 | |
921 | xassert (fontset_id_valid_p (face->fontset)); | |
922 | fontset = FONTSET_FROM_ID (face->fontset); | |
923 | xassert (!BASE_FONTSET_P (fontset)); | |
41ad6003 | 924 | |
6bad8007 | 925 | if (pos < 0) |
303d5190 KH |
926 | { |
927 | id = -1; | |
928 | charset = Qnil; | |
929 | } | |
6bad8007 KH |
930 | else |
931 | { | |
932 | charset = Fget_char_property (make_number (pos), Qcharset, object); | |
b1bde622 | 933 | if (CHARSETP (charset)) |
28e2436a KH |
934 | { |
935 | Lisp_Object val; | |
936 | ||
a124bbb6 | 937 | val = assq_no_quit (charset, Vfont_encoding_charset_alist); |
28e2436a KH |
938 | if (CONSP (val) && CHARSETP (XCDR (val))) |
939 | charset = XCDR (val); | |
940 | id = XINT (CHARSET_SYMBOL_ID (charset)); | |
941 | } | |
b1bde622 KH |
942 | else |
943 | id = -1; | |
6bad8007 | 944 | } |
b59e66b3 | 945 | |
7e1a1cd9 KH |
946 | rfont_def = fontset_font (fontset, c, face, id); |
947 | if (VECTORP (rfont_def)) | |
948 | { | |
581f7ac7 KH |
949 | if (INTEGERP (RFONT_DEF_FACE (rfont_def))) |
950 | face_id = XINT (RFONT_DEF_FACE (rfont_def)); | |
8aa07a8d | 951 | else |
7e1a1cd9 | 952 | { |
581f7ac7 | 953 | Lisp_Object font_object; |
7e1a1cd9 | 954 | |
581f7ac7 KH |
955 | font_object = RFONT_DEF_OBJECT (rfont_def); |
956 | face_id = face_for_font (f, font_object, face); | |
957 | RFONT_DEF_SET_FACE (rfont_def, face_id); | |
7e1a1cd9 | 958 | } |
7e1a1cd9 | 959 | } |
581f7ac7 | 960 | else |
7e1a1cd9 | 961 | { |
581f7ac7 KH |
962 | if (INTEGERP (FONTSET_NOFONT_FACE (fontset))) |
963 | face_id = XINT (FONTSET_NOFONT_FACE (fontset)); | |
964 | else | |
965 | { | |
966 | face_id = face_for_font (f, Qnil, face); | |
967 | FONTSET_NOFONT_FACE (fontset) = make_number (face_id); | |
968 | } | |
7e1a1cd9 | 969 | } |
581f7ac7 KH |
970 | xassert (face_id >= 0); |
971 | return face_id; | |
0d407d77 KH |
972 | } |
973 | ||
974 | ||
514cf218 | 975 | Lisp_Object |
971de7fb | 976 | font_for_char (struct face *face, int c, int pos, Lisp_Object object) |
514cf218 KH |
977 | { |
978 | Lisp_Object fontset, rfont_def, charset; | |
514cf218 KH |
979 | int id; |
980 | ||
981 | if (ASCII_CHAR_P (c)) | |
982 | { | |
983 | Lisp_Object font_object; | |
984 | ||
985 | XSETFONT (font_object, face->ascii_face->font); | |
986 | return font_object; | |
987 | } | |
988 | ||
989 | xassert (fontset_id_valid_p (face->fontset)); | |
990 | fontset = FONTSET_FROM_ID (face->fontset); | |
991 | xassert (!BASE_FONTSET_P (fontset)); | |
992 | if (pos < 0) | |
993 | { | |
994 | id = -1; | |
995 | charset = Qnil; | |
996 | } | |
997 | else | |
998 | { | |
999 | charset = Fget_char_property (make_number (pos), Qcharset, object); | |
b1bde622 | 1000 | if (CHARSETP (charset)) |
514cf218 KH |
1001 | { |
1002 | Lisp_Object val; | |
1003 | ||
9fe78804 | 1004 | val = assq_no_quit (charset, Vfont_encoding_charset_alist); |
514cf218 KH |
1005 | if (CONSP (val) && CHARSETP (XCDR (val))) |
1006 | charset = XCDR (val); | |
1007 | id = XINT (CHARSET_SYMBOL_ID (charset)); | |
1008 | } | |
b1bde622 KH |
1009 | else |
1010 | id = -1; | |
514cf218 KH |
1011 | } |
1012 | ||
514cf218 KH |
1013 | rfont_def = fontset_font (fontset, c, face, id); |
1014 | return (VECTORP (rfont_def) | |
1015 | ? RFONT_DEF_OBJECT (rfont_def) | |
1016 | : Qnil); | |
1017 | } | |
1018 | ||
1019 | ||
0d407d77 KH |
1020 | /* Make a realized fontset for ASCII face FACE on frame F from the |
1021 | base fontset BASE_FONTSET_ID. If BASE_FONTSET_ID is -1, use the | |
1022 | default fontset as the base. Value is the id of the new fontset. | |
1023 | Called from realize_x_face. */ | |
1024 | ||
1025 | int | |
971de7fb | 1026 | make_fontset_for_ascii_face (FRAME_PTR f, int base_fontset_id, struct face *face) |
0d407d77 | 1027 | { |
1337ac77 | 1028 | Lisp_Object base_fontset, fontset, frame; |
0d407d77 KH |
1029 | |
1030 | XSETFRAME (frame, f); | |
1031 | if (base_fontset_id >= 0) | |
1032 | { | |
1033 | base_fontset = FONTSET_FROM_ID (base_fontset_id); | |
1034 | if (!BASE_FONTSET_P (base_fontset)) | |
1035 | base_fontset = FONTSET_BASE (base_fontset); | |
1d5d7200 KH |
1036 | if (! BASE_FONTSET_P (base_fontset)) |
1037 | abort (); | |
4ed46869 | 1038 | } |
0d407d77 KH |
1039 | else |
1040 | base_fontset = Vdefault_fontset; | |
1041 | ||
1042 | fontset = make_fontset (frame, Qnil, base_fontset); | |
f3231837 | 1043 | return XINT (FONTSET_ID (fontset)); |
0d407d77 KH |
1044 | } |
1045 | ||
0d407d77 | 1046 | \f |
1d5d7200 | 1047 | |
4ed46869 KH |
1048 | /* Cache data used by fontset_pattern_regexp. The car part is a |
1049 | pattern string containing at least one wild card, the cdr part is | |
1050 | the corresponding regular expression. */ | |
1051 | static Lisp_Object Vcached_fontset_data; | |
1052 | ||
51b59d79 | 1053 | #define CACHED_FONTSET_NAME SSDATA (XCAR (Vcached_fontset_data)) |
7539e11f | 1054 | #define CACHED_FONTSET_REGEX (XCDR (Vcached_fontset_data)) |
4ed46869 KH |
1055 | |
1056 | /* If fontset name PATTERN contains any wild card, return regular | |
1057 | expression corresponding to PATTERN. */ | |
1058 | ||
0d407d77 | 1059 | static Lisp_Object |
971de7fb | 1060 | fontset_pattern_regexp (Lisp_Object pattern) |
4ed46869 | 1061 | { |
51b59d79 PE |
1062 | if (!strchr (SSDATA (pattern), '*') |
1063 | && !strchr (SSDATA (pattern), '?')) | |
4ed46869 | 1064 | /* PATTERN does not contain any wild cards. */ |
1c283e35 | 1065 | return Qnil; |
4ed46869 KH |
1066 | |
1067 | if (!CONSP (Vcached_fontset_data) | |
51b59d79 | 1068 | || strcmp (SSDATA (pattern), CACHED_FONTSET_NAME)) |
4ed46869 KH |
1069 | { |
1070 | /* We must at first update the cached data. */ | |
6cc06608 | 1071 | unsigned char *regex, *p0, *p1; |
821bc4db | 1072 | int ndashes = 0, nstars = 0, nescs = 0; |
6cc06608 | 1073 | |
fc1062f5 KH |
1074 | for (p0 = SDATA (pattern); *p0; p0++) |
1075 | { | |
1076 | if (*p0 == '-') | |
1077 | ndashes++; | |
a653f812 | 1078 | else if (*p0 == '*') |
fc1062f5 | 1079 | nstars++; |
821bc4db KH |
1080 | else if (*p0 == '[' |
1081 | || *p0 == '.' || *p0 == '\\' | |
8510724d | 1082 | || *p0 == '+' || *p0 == '^' |
821bc4db KH |
1083 | || *p0 == '$') |
1084 | nescs++; | |
fc1062f5 KH |
1085 | } |
1086 | ||
1087 | /* If PATTERN is not full XLFD we conert "*" to ".*". Otherwise | |
1088 | we convert "*" to "[^-]*" which is much faster in regular | |
1089 | expression matching. */ | |
1090 | if (ndashes < 14) | |
821bc4db | 1091 | p1 = regex = (unsigned char *) alloca (SBYTES (pattern) + 2 * nstars + 2 * nescs + 1); |
fc1062f5 | 1092 | else |
821bc4db | 1093 | p1 = regex = (unsigned char *) alloca (SBYTES (pattern) + 5 * nstars + 2 * nescs + 1); |
4ed46869 | 1094 | |
1c283e35 | 1095 | *p1++ = '^'; |
6cc06608 | 1096 | for (p0 = SDATA (pattern); *p0; p0++) |
4ed46869 | 1097 | { |
a653f812 | 1098 | if (*p0 == '*') |
4ed46869 | 1099 | { |
fc1062f5 KH |
1100 | if (ndashes < 14) |
1101 | *p1++ = '.'; | |
1102 | else | |
1103 | *p1++ = '[', *p1++ = '^', *p1++ = '-', *p1++ = ']'; | |
1c283e35 | 1104 | *p1++ = '*'; |
4ed46869 | 1105 | } |
1c283e35 | 1106 | else if (*p0 == '?') |
d96d677d | 1107 | *p1++ = '.'; |
821bc4db KH |
1108 | else if (*p0 == '[' |
1109 | || *p0 == '.' || *p0 == '\\' | |
8510724d | 1110 | || *p0 == '+' || *p0 == '^' |
821bc4db KH |
1111 | || *p0 == '$') |
1112 | *p1++ = '\\', *p1++ = *p0; | |
1c283e35 KH |
1113 | else |
1114 | *p1++ = *p0; | |
4ed46869 KH |
1115 | } |
1116 | *p1++ = '$'; | |
1117 | *p1++ = 0; | |
1118 | ||
51b59d79 | 1119 | Vcached_fontset_data = Fcons (build_string (SSDATA (pattern)), |
dbf46ba6 | 1120 | build_string ((char *) regex)); |
4ed46869 KH |
1121 | } |
1122 | ||
1123 | return CACHED_FONTSET_REGEX; | |
1124 | } | |
1125 | ||
0d407d77 | 1126 | /* Return ID of the base fontset named NAME. If there's no such |
a653f812 KH |
1127 | fontset, return -1. NAME_PATTERN specifies how to treat NAME as this: |
1128 | 0: pattern containing '*' and '?' as wildcards | |
1129 | 1: regular expression | |
1130 | 2: literal fontset name | |
1131 | */ | |
0d407d77 KH |
1132 | |
1133 | int | |
971de7fb | 1134 | fs_query_fontset (Lisp_Object name, int name_pattern) |
0d407d77 | 1135 | { |
1337ac77 | 1136 | Lisp_Object tem; |
0d407d77 KH |
1137 | int i; |
1138 | ||
1139 | name = Fdowncase (name); | |
a653f812 | 1140 | if (name_pattern != 1) |
0d407d77 KH |
1141 | { |
1142 | tem = Frassoc (name, Vfontset_alias_alist); | |
6bad8007 KH |
1143 | if (NILP (tem)) |
1144 | tem = Fassoc (name, Vfontset_alias_alist); | |
0d407d77 KH |
1145 | if (CONSP (tem) && STRINGP (XCAR (tem))) |
1146 | name = XCAR (tem); | |
a653f812 | 1147 | else if (name_pattern == 0) |
0d407d77 KH |
1148 | { |
1149 | tem = fontset_pattern_regexp (name); | |
1150 | if (STRINGP (tem)) | |
1151 | { | |
1152 | name = tem; | |
a653f812 | 1153 | name_pattern = 1; |
0d407d77 KH |
1154 | } |
1155 | } | |
1156 | } | |
1157 | ||
1158 | for (i = 0; i < ASIZE (Vfontset_table); i++) | |
1159 | { | |
6e1b0d8c | 1160 | Lisp_Object fontset, this_name; |
0d407d77 KH |
1161 | |
1162 | fontset = FONTSET_FROM_ID (i); | |
1163 | if (NILP (fontset) | |
1164 | || !BASE_FONTSET_P (fontset)) | |
1165 | continue; | |
1166 | ||
6e1b0d8c | 1167 | this_name = FONTSET_NAME (fontset); |
a653f812 | 1168 | if (name_pattern == 1 |
581f7ac7 | 1169 | ? fast_string_match_ignore_case (name, this_name) >= 0 |
25a48bd0 | 1170 | : !xstrcasecmp (SSDATA (name), SSDATA (this_name))) |
0d407d77 KH |
1171 | return i; |
1172 | } | |
1173 | return -1; | |
1174 | } | |
1175 | ||
1176 | ||
a7ca3326 | 1177 | DEFUN ("query-fontset", Fquery_fontset, Squery_fontset, 1, 2, 0, |
335c5470 PJ |
1178 | doc: /* Return the name of a fontset that matches PATTERN. |
1179 | The value is nil if there is no matching fontset. | |
1180 | PATTERN can contain `*' or `?' as a wildcard | |
1181 | just as X font name matching algorithm allows. | |
1182 | If REGEXPP is non-nil, PATTERN is a regular expression. */) | |
5842a27b | 1183 | (Lisp_Object pattern, Lisp_Object regexpp) |
4ed46869 | 1184 | { |
0d407d77 KH |
1185 | Lisp_Object fontset; |
1186 | int id; | |
4ed46869 KH |
1187 | |
1188 | (*check_window_system_func) (); | |
1189 | ||
b7826503 | 1190 | CHECK_STRING (pattern); |
4ed46869 | 1191 | |
d5db4077 | 1192 | if (SCHARS (pattern) == 0) |
4ed46869 KH |
1193 | return Qnil; |
1194 | ||
0d407d77 KH |
1195 | id = fs_query_fontset (pattern, !NILP (regexpp)); |
1196 | if (id < 0) | |
1197 | return Qnil; | |
4ed46869 | 1198 | |
0d407d77 KH |
1199 | fontset = FONTSET_FROM_ID (id); |
1200 | return FONTSET_NAME (fontset); | |
4ed46869 KH |
1201 | } |
1202 | ||
06f76f0d | 1203 | /* Return a list of base fontset names matching PATTERN on frame F. */ |
4ed46869 KH |
1204 | |
1205 | Lisp_Object | |
971de7fb | 1206 | list_fontsets (FRAME_PTR f, Lisp_Object pattern, int size) |
4ed46869 | 1207 | { |
1337ac77 | 1208 | Lisp_Object frame, regexp, val; |
0d407d77 | 1209 | int id; |
4ed46869 | 1210 | |
0d407d77 | 1211 | XSETFRAME (frame, f); |
4ed46869 | 1212 | |
0d407d77 | 1213 | regexp = fontset_pattern_regexp (pattern); |
4ed46869 | 1214 | val = Qnil; |
4ed46869 | 1215 | |
0d407d77 KH |
1216 | for (id = 0; id < ASIZE (Vfontset_table); id++) |
1217 | { | |
6e1b0d8c | 1218 | Lisp_Object fontset, name; |
0d407d77 KH |
1219 | |
1220 | fontset = FONTSET_FROM_ID (id); | |
1221 | if (NILP (fontset) | |
1222 | || !BASE_FONTSET_P (fontset) | |
1223 | || !EQ (frame, FONTSET_FRAME (fontset))) | |
1224 | continue; | |
6e1b0d8c | 1225 | name = FONTSET_NAME (fontset); |
0d407d77 | 1226 | |
1d5d7200 | 1227 | if (STRINGP (regexp) |
6e1b0d8c | 1228 | ? (fast_string_match (regexp, name) < 0) |
51b59d79 | 1229 | : strcmp (SSDATA (pattern), SSDATA (name))) |
0d407d77 KH |
1230 | continue; |
1231 | ||
0d407d77 | 1232 | val = Fcons (Fcopy_sequence (FONTSET_NAME (fontset)), val); |
4ed46869 KH |
1233 | } |
1234 | ||
1235 | return val; | |
1236 | } | |
1237 | ||
4ed46869 | 1238 | |
8f924df7 | 1239 | /* Free all realized fontsets whose base fontset is BASE. */ |
4ed46869 | 1240 | |
06f76f0d | 1241 | static void |
971de7fb | 1242 | free_realized_fontsets (Lisp_Object base) |
06f76f0d KH |
1243 | { |
1244 | int id; | |
4ed46869 | 1245 | |
2f034212 | 1246 | #if 0 |
27e20b2f KH |
1247 | /* For the moment, this doesn't work because free_realized_face |
1248 | doesn't remove FACE from a cache. Until we find a solution, we | |
1249 | suppress this code, and simply use Fclear_face_cache even though | |
1250 | that is not efficient. */ | |
06f76f0d KH |
1251 | BLOCK_INPUT; |
1252 | for (id = 0; id < ASIZE (Vfontset_table); id++) | |
4ed46869 | 1253 | { |
06f76f0d | 1254 | Lisp_Object this = AREF (Vfontset_table, id); |
0d407d77 | 1255 | |
06f76f0d | 1256 | if (EQ (FONTSET_BASE (this), base)) |
0d407d77 | 1257 | { |
06f76f0d | 1258 | Lisp_Object tail; |
4ed46869 | 1259 | |
06f76f0d KH |
1260 | for (tail = FONTSET_FACE_ALIST (this); CONSP (tail); |
1261 | tail = XCDR (tail)) | |
1262 | { | |
1263 | FRAME_PTR f = XFRAME (FONTSET_FRAME (this)); | |
1264 | int face_id = XINT (XCDR (XCAR (tail))); | |
1265 | struct face *face = FACE_FROM_ID (f, face_id); | |
4ed46869 | 1266 | |
06f76f0d KH |
1267 | /* Face THIS itself is also freed by the following call. */ |
1268 | free_realized_face (f, face); | |
1269 | } | |
1270 | } | |
0d407d77 | 1271 | } |
06f76f0d | 1272 | UNBLOCK_INPUT; |
27e20b2f | 1273 | #else /* not 0 */ |
2f034212 KH |
1274 | /* But, we don't have to call Fclear_face_cache if no fontset has |
1275 | been realized from BASE. */ | |
1276 | for (id = 0; id < ASIZE (Vfontset_table); id++) | |
1277 | { | |
1278 | Lisp_Object this = AREF (Vfontset_table, id); | |
1279 | ||
985773c9 | 1280 | if (CHAR_TABLE_P (this) && EQ (FONTSET_BASE (this), base)) |
2f034212 KH |
1281 | { |
1282 | Fclear_face_cache (Qt); | |
1283 | break; | |
1284 | } | |
1285 | } | |
27e20b2f | 1286 | #endif /* not 0 */ |
0d407d77 | 1287 | } |
4ed46869 | 1288 | |
4ed46869 | 1289 | |
0d407d77 KH |
1290 | /* Check validity of NAME as a fontset name and return the |
1291 | corresponding fontset. If not valid, signal an error. | |
a3d16f39 KH |
1292 | |
1293 | If NAME is t, return Vdefault_fontset. If NAME is nil, return the | |
1294 | fontset of *FRAME. | |
1295 | ||
1296 | Set *FRAME to the actual frame. */ | |
0d407d77 KH |
1297 | |
1298 | static Lisp_Object | |
971de7fb | 1299 | check_fontset_name (Lisp_Object name, Lisp_Object *frame) |
0d407d77 KH |
1300 | { |
1301 | int id; | |
1302 | ||
a3d16f39 KH |
1303 | if (NILP (*frame)) |
1304 | *frame = selected_frame; | |
1305 | CHECK_LIVE_FRAME (*frame); | |
1306 | ||
0d407d77 KH |
1307 | if (EQ (name, Qt)) |
1308 | return Vdefault_fontset; | |
a3d16f39 KH |
1309 | if (NILP (name)) |
1310 | { | |
1311 | id = FRAME_FONTSET (XFRAME (*frame)); | |
1312 | } | |
1313 | else | |
1314 | { | |
1315 | CHECK_STRING (name); | |
1316 | /* First try NAME as literal. */ | |
1317 | id = fs_query_fontset (name, 2); | |
1318 | if (id < 0) | |
1319 | /* For backward compatibility, try again NAME as pattern. */ | |
1320 | id = fs_query_fontset (name, 0); | |
1321 | if (id < 0) | |
1322 | error ("Fontset `%s' does not exist", SDATA (name)); | |
1323 | } | |
0d407d77 KH |
1324 | return FONTSET_FROM_ID (id); |
1325 | } | |
4ed46869 | 1326 | |
1d5d7200 | 1327 | static void |
971de7fb | 1328 | accumulate_script_ranges (Lisp_Object arg, Lisp_Object range, Lisp_Object val) |
1d5d7200 KH |
1329 | { |
1330 | if (EQ (XCAR (arg), val)) | |
1331 | { | |
1332 | if (CONSP (range)) | |
1333 | XSETCDR (arg, Fcons (Fcons (XCAR (range), XCDR (range)), XCDR (arg))); | |
1334 | else | |
1335 | XSETCDR (arg, Fcons (Fcons (range, range), XCDR (arg))); | |
1336 | } | |
1337 | } | |
1338 | ||
1339 | ||
a3d16f39 KH |
1340 | /* Callback function for map_charset_chars in Fset_fontset_font. |
1341 | ARG is a vector [ FONTSET FONT_DEF ADD ASCII SCRIPT_RANGE_LIST ]. | |
fb78e2ed | 1342 | |
a3d16f39 KH |
1343 | In FONTSET, set FONT_DEF in a fashion specified by ADD for |
1344 | characters in RANGE and ranges in SCRIPT_RANGE_LIST before RANGE. | |
1345 | The consumed ranges are poped up from SCRIPT_RANGE_LIST, and the | |
1346 | new SCRIPT_RANGE_LIST is stored in ARG. | |
1347 | ||
1348 | If ASCII is nil, don't set FONT_DEF for ASCII characters. It is | |
1349 | assured that SCRIPT_RANGE_LIST doesn't contain ASCII in that | |
1350 | case. */ | |
fb78e2ed | 1351 | |
2449d4d0 | 1352 | static void |
971de7fb | 1353 | set_fontset_font (Lisp_Object arg, Lisp_Object range) |
2449d4d0 | 1354 | { |
a3d16f39 KH |
1355 | Lisp_Object fontset, font_def, add, ascii, script_range_list; |
1356 | int from = XINT (XCAR (range)), to = XINT (XCDR (range)); | |
2449d4d0 | 1357 | |
a3d16f39 KH |
1358 | fontset = AREF (arg, 0); |
1359 | font_def = AREF (arg, 1); | |
1360 | add = AREF (arg, 2); | |
1361 | ascii = AREF (arg, 3); | |
1362 | script_range_list = AREF (arg, 4); | |
fb78e2ed | 1363 | |
a3d16f39 KH |
1364 | if (NILP (ascii) && from < 0x80) |
1365 | { | |
1366 | if (to < 0x80) | |
fb78e2ed | 1367 | return; |
a3d16f39 KH |
1368 | from = 0x80; |
1369 | range = Fcons (make_number (0x80), XCDR (range)); | |
1370 | } | |
1371 | ||
1372 | #define SCRIPT_FROM XINT (XCAR (XCAR (script_range_list))) | |
1373 | #define SCRIPT_TO XINT (XCDR (XCAR (script_range_list))) | |
1374 | #define POP_SCRIPT_RANGE() script_range_list = XCDR (script_range_list) | |
1375 | ||
1376 | for (; CONSP (script_range_list) && SCRIPT_TO < from; POP_SCRIPT_RANGE ()) | |
1377 | FONTSET_ADD (fontset, XCAR (script_range_list), font_def, add); | |
1378 | if (CONSP (script_range_list)) | |
1379 | { | |
1380 | if (SCRIPT_FROM < from) | |
1381 | range = Fcons (make_number (SCRIPT_FROM), XCDR (range)); | |
1382 | while (CONSP (script_range_list) && SCRIPT_TO <= to) | |
1383 | POP_SCRIPT_RANGE (); | |
1384 | if (CONSP (script_range_list) && SCRIPT_FROM <= to) | |
1385 | XSETCAR (XCAR (script_range_list), make_number (to + 1)); | |
fb78e2ed | 1386 | } |
a3d16f39 KH |
1387 | |
1388 | FONTSET_ADD (fontset, range, font_def, add); | |
1389 | ASET (arg, 4, script_range_list); | |
2449d4d0 KH |
1390 | } |
1391 | ||
f57e2426 | 1392 | static void update_auto_fontset_alist (Lisp_Object, Lisp_Object); |
d6490542 | 1393 | |
d6aaac9e | 1394 | |
1d5d7200 | 1395 | DEFUN ("set-fontset-font", Fset_fontset_font, Sset_fontset_font, 3, 5, 0, |
8f924df7 | 1396 | doc: /* |
eb36588a | 1397 | Modify fontset NAME to use FONT-SPEC for TARGET characters. |
335c5470 | 1398 | |
a3d16f39 KH |
1399 | NAME is a fontset name string, nil for the fontset of FRAME, or t for |
1400 | the default fontset. | |
1401 | ||
eb36588a KH |
1402 | TARGET may be a cons; (FROM . TO), where FROM and TO are characters. |
1403 | In that case, use FONT-SPEC for all characters in the range FROM and | |
1404 | TO (inclusive). | |
06f76f0d | 1405 | |
eb36588a KH |
1406 | TARGET may be a script name symbol. In that case, use FONT-SPEC for |
1407 | all characters that belong to the script. | |
06f76f0d | 1408 | |
eb36588a | 1409 | TARGET may be a charset. In that case, use FONT-SPEC for all |
95318a38 | 1410 | characters in the charset. |
1d5d7200 | 1411 | |
eb36588a KH |
1412 | TARGET may be nil. In that case, use FONT-SPEC for any characters for |
1413 | that no FONT-SPEC is specified. | |
1414 | ||
0fdf26e6 | 1415 | FONT-SPEC may one of these: |
581f7ac7 | 1416 | * A font-spec object made by the function `font-spec' (which see). |
3dcd48dd | 1417 | * A cons (FAMILY . REGISTRY), where FAMILY is a font family name and |
581f7ac7 KH |
1418 | REGISTRY is a font registry name. FAMILY may contain foundry |
1419 | name, and REGISTRY may contain encoding name. | |
00c4da0f | 1420 | * A font name string. |
eaa0402c | 1421 | * nil, which explicitly specifies that there's no font for TARGET. |
1d5d7200 | 1422 | |
a3d16f39 KH |
1423 | Optional 4th argument FRAME is a frame or nil for the selected frame |
1424 | that is concerned in the case that NAME is nil. | |
1d5d7200 KH |
1425 | |
1426 | Optional 5th argument ADD, if non-nil, specifies how to add FONT-SPEC | |
eb36588a | 1427 | to the font specifications for TARGET previously set. If it is |
1d5d7200 KH |
1428 | `prepend', FONT-SPEC is prepended. If it is `append', FONT-SPEC is |
1429 | appended. By default, FONT-SPEC overrides the previous settings. */) | |
5842a27b | 1430 | (Lisp_Object name, Lisp_Object target, Lisp_Object font_spec, Lisp_Object frame, Lisp_Object add) |
0d407d77 | 1431 | { |
06f76f0d | 1432 | Lisp_Object fontset; |
9683749a | 1433 | Lisp_Object font_def, registry, family; |
1d5d7200 | 1434 | Lisp_Object range_list; |
fb78e2ed | 1435 | struct charset *charset = NULL; |
d6490542 KH |
1436 | Lisp_Object fontname; |
1437 | int ascii_changed = 0; | |
0d407d77 | 1438 | |
a3d16f39 | 1439 | fontset = check_fontset_name (name, &frame); |
1d5d7200 | 1440 | |
d6490542 | 1441 | fontname = Qnil; |
581f7ac7 | 1442 | if (CONSP (font_spec)) |
0d407d77 | 1443 | { |
581f7ac7 | 1444 | Lisp_Object spec = Ffont_spec (0, NULL); |
1d5d7200 | 1445 | |
581f7ac7 KH |
1446 | font_parse_family_registry (XCAR (font_spec), XCDR (font_spec), spec); |
1447 | font_spec = spec; | |
d6490542 | 1448 | fontname = Ffont_xlfd_name (font_spec, Qnil); |
0890801b | 1449 | } |
d67f7f1a | 1450 | else if (STRINGP (font_spec)) |
4ed46869 | 1451 | { |
ea0162a6 KH |
1452 | Lisp_Object args[2]; |
1453 | ||
d6490542 | 1454 | fontname = font_spec; |
ea0162a6 KH |
1455 | args[0] = QCname; |
1456 | args[1] = font_spec; | |
1457 | font_spec = Ffont_spec (2, args); | |
0d407d77 | 1458 | } |
d6490542 KH |
1459 | else if (FONT_SPEC_P (font_spec)) |
1460 | fontname = Ffont_xlfd_name (font_spec, Qnil); | |
1461 | else if (! NILP (font_spec)) | |
581f7ac7 | 1462 | Fsignal (Qfont, list2 (build_string ("Invalid font-spec"), font_spec)); |
1d5d7200 | 1463 | |
d67f7f1a | 1464 | if (! NILP (font_spec)) |
57e13af9 | 1465 | { |
581f7ac7 KH |
1466 | Lisp_Object encoding, repertory; |
1467 | ||
d67f7f1a | 1468 | family = AREF (font_spec, FONT_FAMILY_INDEX); |
581f7ac7 | 1469 | if (! NILP (family) ) |
d67f7f1a KH |
1470 | family = SYMBOL_NAME (family); |
1471 | registry = AREF (font_spec, FONT_REGISTRY_INDEX); | |
581f7ac7 KH |
1472 | if (! NILP (registry)) |
1473 | registry = Fdowncase (SYMBOL_NAME (registry)); | |
1474 | encoding = find_font_encoding (concat3 (family, build_string ("-"), | |
1475 | registry)); | |
d67f7f1a KH |
1476 | if (NILP (encoding)) |
1477 | encoding = Qascii; | |
1478 | ||
1479 | if (SYMBOLP (encoding)) | |
1480 | { | |
1481 | CHECK_CHARSET (encoding); | |
1482 | encoding = repertory = CHARSET_SYMBOL_ID (encoding); | |
1483 | } | |
1484 | else | |
57e13af9 | 1485 | { |
d67f7f1a KH |
1486 | repertory = XCDR (encoding); |
1487 | encoding = XCAR (encoding); | |
1488 | CHECK_CHARSET (encoding); | |
1489 | encoding = CHARSET_SYMBOL_ID (encoding); | |
1490 | if (! NILP (repertory) && SYMBOLP (repertory)) | |
1491 | { | |
1492 | CHECK_CHARSET (repertory); | |
1493 | repertory = CHARSET_SYMBOL_ID (repertory); | |
1494 | } | |
57e13af9 | 1495 | } |
581f7ac7 | 1496 | FONT_DEF_NEW (font_def, font_spec, encoding, repertory); |
0d407d77 | 1497 | } |
d67f7f1a KH |
1498 | else |
1499 | font_def = Qnil; | |
4ed46869 | 1500 | |
eb36588a | 1501 | if (CHARACTERP (target)) |
d6490542 KH |
1502 | { |
1503 | if (XFASTINT (target) < 0x80) | |
d7a39b51 | 1504 | error ("Can't set a font for partial ASCII range"); |
d6490542 KH |
1505 | range_list = Fcons (Fcons (target, target), Qnil); |
1506 | } | |
eb36588a | 1507 | else if (CONSP (target)) |
0d407d77 | 1508 | { |
06f76f0d KH |
1509 | Lisp_Object from, to; |
1510 | ||
eb36588a KH |
1511 | from = Fcar (target); |
1512 | to = Fcdr (target); | |
06f76f0d KH |
1513 | CHECK_CHARACTER (from); |
1514 | CHECK_CHARACTER (to); | |
d6490542 KH |
1515 | if (XFASTINT (from) < 0x80) |
1516 | { | |
1517 | if (XFASTINT (from) != 0 || XFASTINT (to) < 0x7F) | |
d7a39b51 | 1518 | error ("Can't set a font for partial ASCII range"); |
d6490542 KH |
1519 | ascii_changed = 1; |
1520 | } | |
eb36588a | 1521 | range_list = Fcons (target, Qnil); |
4ed46869 | 1522 | } |
eb36588a | 1523 | else if (SYMBOLP (target) && !NILP (target)) |
8a9be3ac | 1524 | { |
1d5d7200 KH |
1525 | Lisp_Object script_list; |
1526 | Lisp_Object val; | |
0d407d77 | 1527 | |
1d5d7200 KH |
1528 | range_list = Qnil; |
1529 | script_list = XCHAR_TABLE (Vchar_script_table)->extras[0]; | |
eb36588a | 1530 | if (! NILP (Fmemq (target, script_list))) |
afe93d01 | 1531 | { |
d6490542 KH |
1532 | if (EQ (target, Qlatin)) |
1533 | ascii_changed = 1; | |
eb36588a | 1534 | val = Fcons (target, Qnil); |
1d5d7200 | 1535 | map_char_table (accumulate_script_ranges, Qnil, Vchar_script_table, |
8f924df7 | 1536 | val); |
a3d16f39 | 1537 | range_list = Fnreverse (XCDR (val)); |
afe93d01 | 1538 | } |
fb78e2ed | 1539 | if (CHARSETP (target)) |
afe93d01 | 1540 | { |
d6490542 KH |
1541 | CHECK_CHARSET_GET_CHARSET (target, charset); |
1542 | if (charset->ascii_compatible_p) | |
1543 | ascii_changed = 1; | |
afe93d01 | 1544 | } |
fb78e2ed | 1545 | else if (NILP (range_list)) |
1d5d7200 | 1546 | error ("Invalid script or charset name: %s", |
eb36588a | 1547 | SDATA (SYMBOL_NAME (target))); |
8a9be3ac | 1548 | } |
eb36588a KH |
1549 | else if (NILP (target)) |
1550 | range_list = Fcons (Qnil, Qnil); | |
1551 | else | |
1552 | error ("Invalid target for setting a font"); | |
0d407d77 | 1553 | |
a3d16f39 KH |
1554 | if (ascii_changed) |
1555 | { | |
1556 | Lisp_Object val; | |
1557 | ||
1558 | if (NILP (font_spec)) | |
1559 | error ("Can't set ASCII font to nil"); | |
1560 | val = CHAR_TABLE_REF (fontset, 0); | |
1561 | if (! NILP (val) && EQ (add, Qappend)) | |
1562 | /* We are going to change just an additional font for ASCII. */ | |
1563 | ascii_changed = 0; | |
1564 | } | |
fb78e2ed KH |
1565 | |
1566 | if (charset) | |
1567 | { | |
a3d16f39 KH |
1568 | Lisp_Object arg; |
1569 | ||
1570 | arg = Fmake_vector (make_number (5), Qnil); | |
1571 | ASET (arg, 0, fontset); | |
1572 | ASET (arg, 1, font_def); | |
1573 | ASET (arg, 2, add); | |
1574 | ASET (arg, 3, ascii_changed ? Qt : Qnil); | |
1575 | ASET (arg, 4, range_list); | |
fb78e2ed | 1576 | |
a3d16f39 | 1577 | map_charset_chars (set_fontset_font, Qnil, arg, charset, |
fb78e2ed KH |
1578 | CHARSET_MIN_CODE (charset), |
1579 | CHARSET_MAX_CODE (charset)); | |
a3d16f39 | 1580 | range_list = AREF (arg, 4); |
fb78e2ed | 1581 | } |
1d5d7200 KH |
1582 | for (; CONSP (range_list); range_list = XCDR (range_list)) |
1583 | FONTSET_ADD (fontset, XCAR (range_list), font_def, add); | |
4ed46869 | 1584 | |
d6490542 KH |
1585 | if (ascii_changed) |
1586 | { | |
7519b8cd | 1587 | Lisp_Object tail, fr, alist; |
d6490542 KH |
1588 | int fontset_id = XINT (FONTSET_ID (fontset)); |
1589 | ||
d6490542 KH |
1590 | FONTSET_ASCII (fontset) = fontname; |
1591 | name = FONTSET_NAME (fontset); | |
7519b8cd | 1592 | FOR_EACH_FRAME (tail, fr) |
d6490542 | 1593 | { |
7519b8cd | 1594 | FRAME_PTR f = XFRAME (fr); |
d6490542 | 1595 | Lisp_Object font_object; |
0875632e | 1596 | struct face *face; |
d6490542 | 1597 | |
0875632e | 1598 | if (FRAME_INITIAL_P (f) || FRAME_TERMCAP_P (f)) |
d6490542 KH |
1599 | continue; |
1600 | if (fontset_id != FRAME_FONTSET (f)) | |
1601 | continue; | |
0875632e KH |
1602 | face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
1603 | if (face) | |
1604 | font_object = font_load_for_lface (f, face->lface, font_spec); | |
1605 | else | |
1606 | font_object = font_open_by_spec (f, font_spec); | |
d6490542 KH |
1607 | if (! NILP (font_object)) |
1608 | { | |
1609 | update_auto_fontset_alist (font_object, fontset); | |
0875632e | 1610 | alist = Fcons (Fcons (Qfont, Fcons (name, font_object)), Qnil); |
7519b8cd | 1611 | Fmodify_frame_parameters (fr, alist); |
d6490542 KH |
1612 | } |
1613 | } | |
1614 | } | |
1615 | ||
0875632e KH |
1616 | /* Free all realized fontsets whose base is FONTSET. This way, the |
1617 | specified character(s) are surely redisplayed by a correct | |
1618 | font. */ | |
1619 | free_realized_fontsets (fontset); | |
1620 | ||
4ed46869 KH |
1621 | return Qnil; |
1622 | } | |
1623 | ||
06f76f0d KH |
1624 | |
1625 | DEFUN ("new-fontset", Fnew_fontset, Snew_fontset, 2, 2, 0, | |
1626 | doc: /* Create a new fontset NAME from font information in FONTLIST. | |
1627 | ||
1d5d7200 | 1628 | FONTLIST is an alist of scripts vs the corresponding font specification list. |
d6aaac9e KH |
1629 | Each element of FONTLIST has the form (SCRIPT FONT-SPEC ...), where a |
1630 | character of SCRIPT is displayed by a font that matches one of | |
1631 | FONT-SPEC. | |
06f76f0d | 1632 | |
d6aaac9e KH |
1633 | SCRIPT is a symbol that appears in the first extra slot of the |
1634 | char-table `char-script-table'. | |
06f76f0d | 1635 | |
1d5d7200 KH |
1636 | FONT-SPEC is a vector, a cons, or a string. See the documentation of |
1637 | `set-fontset-font' for the meaning. */) | |
5842a27b | 1638 | (Lisp_Object name, Lisp_Object fontlist) |
06f76f0d | 1639 | { |
1d5d7200 | 1640 | Lisp_Object fontset; |
1d5d7200 | 1641 | int id; |
06f76f0d KH |
1642 | |
1643 | CHECK_STRING (name); | |
1644 | CHECK_LIST (fontlist); | |
1645 | ||
581f7ac7 | 1646 | name = Fdowncase (name); |
1d5d7200 KH |
1647 | id = fs_query_fontset (name, 0); |
1648 | if (id < 0) | |
0d407d77 | 1649 | { |
581f7ac7 KH |
1650 | Lisp_Object font_spec = Ffont_spec (0, NULL); |
1651 | Lisp_Object short_name; | |
5f2d79e0 | 1652 | char xlfd[256]; |
581f7ac7 KH |
1653 | int len; |
1654 | ||
51b59d79 | 1655 | if (font_parse_xlfd (SSDATA (name), font_spec) < 0) |
d6aaac9e | 1656 | error ("Fontset name must be in XLFD format"); |
581f7ac7 | 1657 | short_name = AREF (font_spec, FONT_REGISTRY_INDEX); |
51b59d79 | 1658 | if (strncmp (SSDATA (SYMBOL_NAME (short_name)), "fontset-", 8) |
581f7ac7 KH |
1659 | || SBYTES (SYMBOL_NAME (short_name)) < 9) |
1660 | error ("Registry field of fontset name must be \"fontset-*\""); | |
1661 | Vfontset_alias_alist = Fcons (Fcons (name, SYMBOL_NAME (short_name)), | |
1662 | Vfontset_alias_alist); | |
1663 | ASET (font_spec, FONT_REGISTRY_INDEX, Qiso8859_1); | |
d6aaac9e | 1664 | fontset = make_fontset (Qnil, name, Qnil); |
5f2d79e0 KH |
1665 | len = font_unparse_xlfd (font_spec, 0, xlfd, 256); |
1666 | if (len < 0) | |
1667 | error ("Invalid fontset name (perhaps too long): %s", SDATA (name)); | |
581f7ac7 | 1668 | FONTSET_ASCII (fontset) = make_unibyte_string (xlfd, len); |
d6aaac9e | 1669 | } |
1d5d7200 KH |
1670 | else |
1671 | { | |
8510724d | 1672 | fontset = FONTSET_FROM_ID (id); |
1d5d7200 KH |
1673 | free_realized_fontsets (fontset); |
1674 | Fset_char_table_range (fontset, Qt, Qnil); | |
0d407d77 | 1675 | } |
4ed46869 | 1676 | |
1d5d7200 KH |
1677 | for (; ! NILP (fontlist); fontlist = Fcdr (fontlist)) |
1678 | { | |
1679 | Lisp_Object elt, script; | |
1680 | ||
1681 | elt = Fcar (fontlist); | |
1682 | script = Fcar (elt); | |
cc36ddbf KH |
1683 | elt = Fcdr (elt); |
1684 | if (CONSP (elt) && (NILP (XCDR (elt)) || CONSP (XCDR (elt)))) | |
1685 | for (; CONSP (elt); elt = XCDR (elt)) | |
1686 | Fset_fontset_font (name, script, XCAR (elt), Qnil, Qappend); | |
1687 | else | |
1688 | Fset_fontset_font (name, script, elt, Qnil, Qappend); | |
1d5d7200 | 1689 | } |
06f76f0d KH |
1690 | return name; |
1691 | } | |
1692 | ||
1693 | ||
452a78e0 | 1694 | /* Alist of automatically created fontsets. Each element is a cons |
581f7ac7 | 1695 | (FONT-SPEC . FONTSET-ID). */ |
452a78e0 | 1696 | static Lisp_Object auto_fontset_alist; |
d6aaac9e | 1697 | |
d6490542 KH |
1698 | /* Number of automatically created fontsets. */ |
1699 | static int num_auto_fontsets; | |
1700 | ||
d8d2f142 KH |
1701 | /* Retun a fontset synthesized from FONT-OBJECT. This is called from |
1702 | x_new_font when FONT-OBJECT is used for the default ASCII font of a | |
1703 | frame, and the returned fontset is used for the default fontset of | |
1704 | that frame. The fontset specifies a font of the same registry as | |
1705 | FONT-OBJECT for all characters in the repertory of the registry | |
1706 | (see Vfont_encoding_alist). If the repertory is not known, the | |
1707 | fontset specifies the font for all Latin characters assuming that a | |
1708 | user intends to use FONT-OBJECT for Latin characters. */ | |
d6490542 | 1709 | |
d6aaac9e | 1710 | int |
971de7fb | 1711 | fontset_from_font (Lisp_Object font_object) |
8aa07a8d | 1712 | { |
03ef560c | 1713 | Lisp_Object font_name = font_get_name (font_object); |
92470028 | 1714 | Lisp_Object font_spec = copy_font_spec (font_object); |
d6490542 | 1715 | Lisp_Object registry = AREF (font_spec, FONT_REGISTRY_INDEX); |
581f7ac7 KH |
1716 | Lisp_Object fontset_spec, alias, name, fontset; |
1717 | Lisp_Object val; | |
8aa07a8d | 1718 | |
581f7ac7 KH |
1719 | val = assoc_no_quit (font_spec, auto_fontset_alist); |
1720 | if (CONSP (val)) | |
1721 | return XINT (FONTSET_ID (XCDR (val))); | |
d6490542 | 1722 | if (num_auto_fontsets++ == 0) |
581f7ac7 | 1723 | alias = intern ("fontset-startup"); |
03ef560c KH |
1724 | else |
1725 | { | |
1726 | char temp[32]; | |
8aa07a8d | 1727 | |
d6490542 | 1728 | sprintf (temp, "fontset-auto%d", num_auto_fontsets - 1); |
581f7ac7 | 1729 | alias = intern (temp); |
03ef560c | 1730 | } |
92470028 | 1731 | fontset_spec = copy_font_spec (font_spec); |
581f7ac7 | 1732 | ASET (fontset_spec, FONT_REGISTRY_INDEX, alias); |
7ae2e7f0 | 1733 | name = Ffont_xlfd_name (fontset_spec, Qnil); |
03ef560c | 1734 | if (NILP (name)) |
581f7ac7 | 1735 | abort (); |
03ef560c | 1736 | fontset = make_fontset (Qnil, name, Qnil); |
581f7ac7 KH |
1737 | Vfontset_alias_alist = Fcons (Fcons (name, SYMBOL_NAME (alias)), |
1738 | Vfontset_alias_alist); | |
1739 | alias = Fdowncase (AREF (font_object, FONT_NAME_INDEX)); | |
1740 | Vfontset_alias_alist = Fcons (Fcons (name, alias), Vfontset_alias_alist); | |
1741 | auto_fontset_alist = Fcons (Fcons (font_spec, fontset), auto_fontset_alist); | |
d8d2f142 KH |
1742 | font_spec = Ffont_spec (0, NULL); |
1743 | ASET (font_spec, FONT_REGISTRY_INDEX, registry); | |
1744 | { | |
1745 | Lisp_Object target = find_font_encoding (SYMBOL_NAME (registry)); | |
1746 | ||
1747 | if (CONSP (target)) | |
1748 | target = XCDR (target); | |
1749 | if (! CHARSETP (target)) | |
1750 | target = Qlatin; | |
1751 | Fset_fontset_font (name, target, font_spec, Qnil, Qnil); | |
1752 | Fset_fontset_font (name, Qnil, font_spec, Qnil, Qnil); | |
1753 | } | |
1754 | ||
d6490542 | 1755 | FONTSET_ASCII (fontset) = font_name; |
edfda783 | 1756 | |
03ef560c | 1757 | return XINT (FONTSET_ID (fontset)); |
8aa07a8d KH |
1758 | } |
1759 | ||
d6490542 KH |
1760 | |
1761 | /* Update auto_fontset_alist for FONTSET. When an ASCII font of | |
1762 | FONTSET is changed, we delete an entry of FONTSET if any from | |
1763 | auto_fontset_alist so that FONTSET is not re-used by | |
1764 | fontset_from_font. */ | |
1765 | ||
1766 | static void | |
971de7fb | 1767 | update_auto_fontset_alist (Lisp_Object font_object, Lisp_Object fontset) |
d6490542 KH |
1768 | { |
1769 | Lisp_Object prev, tail; | |
1770 | ||
1771 | for (prev = Qnil, tail = auto_fontset_alist; CONSP (tail); | |
1772 | prev = tail, tail = XCDR (tail)) | |
1773 | if (EQ (fontset, XCDR (XCAR (tail)))) | |
1774 | { | |
1775 | if (NILP (prev)) | |
1776 | auto_fontset_alist = XCDR (tail); | |
1777 | else | |
1778 | XSETCDR (prev, XCDR (tail)); | |
1779 | break; | |
1780 | } | |
1781 | } | |
1782 | ||
1783 | ||
fe44f009 KH |
1784 | /* Return a cons (FONT-OBJECT . GLYPH-CODE). |
1785 | FONT-OBJECT is the font for the character at POSITION in the current | |
1ff005e1 | 1786 | buffer. This is computed from all the text properties and overlays |
cf14fd6e | 1787 | that apply to POSITION. POSTION may be nil, in which case, |
fe44f009 | 1788 | FONT-SPEC is the font for displaying the character CH with the |
cf14fd6e KH |
1789 | default face. |
1790 | ||
92c15c34 KH |
1791 | GLYPH-CODE is the glyph code in the font to use for the character. |
1792 | ||
1793 | If the 2nd optional arg CH is non-nil, it is a character to check | |
1794 | the font instead of the character at POSITION. | |
1795 | ||
1796 | It returns nil in the following cases: | |
1ff005e1 KH |
1797 | |
1798 | (1) The window system doesn't have a font for the character (thus | |
1799 | it is displayed by an empty box). | |
1800 | ||
1801 | (2) The character code is invalid. | |
1802 | ||
cf14fd6e KH |
1803 | (3) If POSITION is not nil, and the current buffer is not displayed |
1804 | in any window. | |
1ff005e1 KH |
1805 | |
1806 | In addition, the returned font name may not take into account of | |
1807 | such redisplay engine hooks as what used in jit-lock-mode if | |
1808 | POSITION is currently not visible. */ | |
1809 | ||
1810 | ||
92c15c34 | 1811 | DEFUN ("internal-char-font", Finternal_char_font, Sinternal_char_font, 1, 2, 0, |
335c5470 | 1812 | doc: /* For internal use only. */) |
5842a27b | 1813 | (Lisp_Object position, Lisp_Object ch) |
1ff005e1 | 1814 | { |
0f8b27ea | 1815 | EMACS_INT pos, pos_byte, dummy; |
1ff005e1 KH |
1816 | int face_id; |
1817 | int c; | |
1ff005e1 KH |
1818 | struct frame *f; |
1819 | struct face *face; | |
1820 | ||
cf14fd6e | 1821 | if (NILP (position)) |
92c15c34 KH |
1822 | { |
1823 | CHECK_CHARACTER (ch); | |
1824 | c = XINT (ch); | |
cf14fd6e | 1825 | f = XFRAME (selected_frame); |
f2cec7a9 | 1826 | face_id = lookup_basic_face (f, DEFAULT_FACE_ID); |
327719ee | 1827 | pos = -1; |
cf14fd6e KH |
1828 | } |
1829 | else | |
1830 | { | |
f0397f5a | 1831 | Lisp_Object window; |
cf14fd6e KH |
1832 | struct window *w; |
1833 | ||
1834 | CHECK_NUMBER_COERCE_MARKER (position); | |
1835 | pos = XINT (position); | |
1836 | if (pos < BEGV || pos >= ZV) | |
1837 | args_out_of_range_3 (position, make_number (BEGV), make_number (ZV)); | |
1838 | pos_byte = CHAR_TO_BYTE (pos); | |
1839 | if (NILP (ch)) | |
1840 | c = FETCH_CHAR (pos_byte); | |
1841 | else | |
1842 | { | |
1843 | CHECK_NATNUM (ch); | |
1844 | c = XINT (ch); | |
1845 | } | |
1846 | window = Fget_buffer_window (Fcurrent_buffer (), Qnil); | |
1847 | if (NILP (window)) | |
1848 | return Qnil; | |
1849 | w = XWINDOW (window); | |
1850 | f = XFRAME (w->frame); | |
6970f632 CY |
1851 | face_id = face_at_buffer_position (w, pos, -1, -1, &dummy, |
1852 | pos + 100, 0, -1); | |
92c15c34 | 1853 | } |
1ff005e1 | 1854 | if (! CHAR_VALID_P (c, 0)) |
1ff005e1 | 1855 | return Qnil; |
327719ee | 1856 | face_id = FACE_FOR_CHAR (f, FACE_FROM_ID (f, face_id), c, pos, Qnil); |
1ff005e1 | 1857 | face = FACE_FROM_ID (f, face_id); |
581f7ac7 | 1858 | if (face->font) |
8aa07a8d | 1859 | { |
fe44f009 KH |
1860 | unsigned code = face->font->driver->encode_char (face->font, c); |
1861 | Lisp_Object font_object; | |
581f7ac7 KH |
1862 | /* Assignment to EMACS_INT stops GCC whining about limited range |
1863 | of data type. */ | |
1864 | EMACS_INT cod = code; | |
1865 | ||
1866 | if (code == FONT_INVALID_CODE) | |
1867 | return Qnil; | |
fe44f009 | 1868 | XSETFONT (font_object, face->font); |
581f7ac7 | 1869 | if (cod <= MOST_POSITIVE_FIXNUM) |
fe44f009 KH |
1870 | return Fcons (font_object, make_number (code)); |
1871 | return Fcons (font_object, Fcons (make_number (code >> 16), | |
581f7ac7 | 1872 | make_number (code & 0xFFFF))); |
92c15c34 KH |
1873 | } |
1874 | return Qnil; | |
1ff005e1 KH |
1875 | } |
1876 | ||
1877 | ||
1d5d7200 KH |
1878 | DEFUN ("fontset-info", Ffontset_info, Sfontset_info, 1, 2, 0, |
1879 | doc: /* Return information about a fontset FONTSET on frame FRAME. | |
e2b45cf9 | 1880 | |
a3d16f39 KH |
1881 | FONTSET is a fontset name string, nil for the fontset of FRAME, or t |
1882 | for the default fontset. FRAME nil means the selected frame. | |
1ff005e1 | 1883 | |
a3d16f39 | 1884 | The value is a char-table whose elements have this form: |
1ff005e1 | 1885 | |
a3d16f39 | 1886 | ((FONT OPENED-FONT ...) ...) |
1ff005e1 | 1887 | |
a3d16f39 | 1888 | FONT is a name of font specified for a range of characters. |
1ff005e1 | 1889 | |
d6aaac9e | 1890 | OPENED-FONT is a name of a font actually opened. |
1ff005e1 | 1891 | |
a3d16f39 KH |
1892 | The char-table has one extra slot. If FONTSET is not the default |
1893 | fontset, the value the extra slot is a char-table containing the | |
1894 | information about the derived fonts from the default fontset. The | |
1895 | format is the same as above. */) | |
5842a27b | 1896 | (Lisp_Object fontset, Lisp_Object frame) |
4ed46869 | 1897 | { |
cc7b6145 KH |
1898 | Lisp_Object *realized[2], fontsets[2], tables[2]; |
1899 | Lisp_Object val, elt; | |
1900 | int c, i, j, k; | |
fc8865fc | 1901 | |
4ed46869 KH |
1902 | (*check_window_system_func) (); |
1903 | ||
a3d16f39 | 1904 | fontset = check_fontset_name (fontset, &frame); |
4ed46869 | 1905 | |
1d5d7200 KH |
1906 | /* Recode fontsets realized on FRAME from the base fontset FONTSET |
1907 | in the table `realized'. */ | |
cc7b6145 KH |
1908 | realized[0] = (Lisp_Object *) alloca (sizeof (Lisp_Object) |
1909 | * ASIZE (Vfontset_table)); | |
1910 | for (i = j = 0; i < ASIZE (Vfontset_table); i++) | |
0d407d77 | 1911 | { |
1ff005e1 KH |
1912 | elt = FONTSET_FROM_ID (i); |
1913 | if (!NILP (elt) | |
1d5d7200 KH |
1914 | && EQ (FONTSET_BASE (elt), fontset) |
1915 | && EQ (FONTSET_FRAME (elt), frame)) | |
cc7b6145 | 1916 | realized[0][j++] = elt; |
0d407d77 | 1917 | } |
cc7b6145 | 1918 | realized[0][j] = Qnil; |
4ed46869 | 1919 | |
cc7b6145 KH |
1920 | realized[1] = (Lisp_Object *) alloca (sizeof (Lisp_Object) |
1921 | * ASIZE (Vfontset_table)); | |
1922 | for (i = j = 0; ! NILP (realized[0][i]); i++) | |
1923 | { | |
1924 | elt = FONTSET_DEFAULT (realized[0][i]); | |
1925 | if (! NILP (elt)) | |
1926 | realized[1][j++] = elt; | |
1927 | } | |
1928 | realized[1][j] = Qnil; | |
1929 | ||
1930 | tables[0] = Fmake_char_table (Qfontset_info, Qnil); | |
cc7b6145 | 1931 | fontsets[0] = fontset; |
348db3dd | 1932 | if (!EQ (fontset, Vdefault_fontset)) |
a3d16f39 KH |
1933 | { |
1934 | tables[1] = Fmake_char_table (Qnil, Qnil); | |
1935 | XCHAR_TABLE (tables[0])->extras[0] = tables[1]; | |
1936 | fontsets[1] = Vdefault_fontset; | |
1937 | } | |
e2b45cf9 | 1938 | |
1d5d7200 KH |
1939 | /* Accumulate information of the fontset in TABLE. The format of |
1940 | each element is ((FONT-SPEC OPENED-FONT ...) ...). */ | |
cc7b6145 | 1941 | for (k = 0; k <= 1; k++) |
0d407d77 | 1942 | { |
cc7b6145 | 1943 | for (c = 0; c <= MAX_CHAR; ) |
d6aaac9e | 1944 | { |
5b30be1a | 1945 | int from = c, to = MAX_5_BYTE_CHAR; |
0d407d77 | 1946 | |
cc7b6145 KH |
1947 | if (c <= MAX_5_BYTE_CHAR) |
1948 | { | |
1949 | val = char_table_ref_and_range (fontsets[k], c, &from, &to); | |
cc7b6145 KH |
1950 | } |
1951 | else | |
1952 | { | |
1953 | val = FONTSET_FALLBACK (fontsets[k]); | |
1954 | to = MAX_CHAR; | |
1955 | } | |
d6aaac9e | 1956 | if (VECTORP (val)) |
0d407d77 | 1957 | { |
d6aaac9e KH |
1958 | Lisp_Object alist; |
1959 | ||
1960 | /* At first, set ALIST to ((FONT-SPEC) ...). */ | |
1961 | for (alist = Qnil, i = 0; i < ASIZE (val); i++) | |
581f7ac7 KH |
1962 | if (! NILP (AREF (val, i))) |
1963 | alist = Fcons (Fcons (FONT_DEF_SPEC (AREF (val, i)), Qnil), | |
1964 | alist); | |
d6aaac9e KH |
1965 | alist = Fnreverse (alist); |
1966 | ||
660100f3 | 1967 | /* Then store opened font names to cdr of each elements. */ |
cc7b6145 | 1968 | for (i = 0; ! NILP (realized[k][i]); i++) |
1ff005e1 | 1969 | { |
cc7b6145 KH |
1970 | if (c <= MAX_5_BYTE_CHAR) |
1971 | val = FONTSET_REF (realized[k][i], c); | |
1972 | else | |
1973 | val = FONTSET_FALLBACK (realized[k][i]); | |
a3d16f39 | 1974 | if (! CONSP (val) || ! VECTORP (XCDR (val))) |
d6aaac9e | 1975 | continue; |
a3d16f39 KH |
1976 | /* VAL: (int . [[FACE-ID FONT-DEF FONT-OBJECT int] ... ]) */ |
1977 | val = XCDR (val); | |
1978 | for (j = 0; j < ASIZE (val); j++) | |
3d4448a8 | 1979 | { |
581f7ac7 KH |
1980 | elt = AREF (val, j); |
1981 | if (FONT_OBJECT_P (RFONT_DEF_OBJECT (elt))) | |
1982 | { | |
1983 | Lisp_Object font_object = RFONT_DEF_OBJECT (elt); | |
1984 | Lisp_Object slot, name; | |
1985 | ||
1986 | slot = Fassq (RFONT_DEF_SPEC (elt), alist); | |
1987 | name = AREF (font_object, FONT_NAME_INDEX); | |
1988 | if (NILP (Fmember (name, XCDR (slot)))) | |
1989 | nconc2 (slot, Fcons (name, Qnil)); | |
1990 | } | |
3d4448a8 | 1991 | } |
1ff005e1 | 1992 | } |
d6aaac9e KH |
1993 | |
1994 | /* Store ALIST in TBL for characters C..TO. */ | |
cc7b6145 KH |
1995 | if (c <= MAX_5_BYTE_CHAR) |
1996 | char_table_set_range (tables[k], c, to, alist); | |
1997 | else | |
1998 | XCHAR_TABLE (tables[k])->defalt = alist; | |
581f7ac7 KH |
1999 | |
2000 | /* At last, change each elements to font names. */ | |
2001 | for (; CONSP (alist); alist = XCDR (alist)) | |
2002 | { | |
2003 | elt = XCAR (alist); | |
7ae2e7f0 | 2004 | XSETCAR (elt, Ffont_xlfd_name (XCAR (elt), Qnil)); |
581f7ac7 | 2005 | } |
0d407d77 | 2006 | } |
d6aaac9e | 2007 | c = to + 1; |
0d407d77 | 2008 | } |
348db3dd | 2009 | if (EQ (fontset, Vdefault_fontset)) |
a3d16f39 | 2010 | break; |
0d407d77 | 2011 | } |
a921395d | 2012 | |
cc7b6145 | 2013 | return tables[0]; |
4ed46869 KH |
2014 | } |
2015 | ||
1d5d7200 | 2016 | |
0fdf26e6 | 2017 | DEFUN ("fontset-font", Ffontset_font, Sfontset_font, 2, 3, 0, |
335c5470 | 2018 | doc: /* Return a font name pattern for character CH in fontset NAME. |
0fdf26e6 | 2019 | If NAME is t, find a pattern in the default fontset. |
5fc05db0 | 2020 | If NAME is nil, find a pattern in the fontset of the selected frame. |
0fdf26e6 KH |
2021 | |
2022 | The value has the form (FAMILY . REGISTRY), where FAMILY is a font | |
2023 | family name and REGISTRY is a font registry name. This is actually | |
2024 | the first font name pattern for CH in the fontset or in the default | |
2025 | fontset. | |
2026 | ||
2027 | If the 2nd optional arg ALL is non-nil, return a list of all font name | |
2028 | patterns. */) | |
5842a27b | 2029 | (Lisp_Object name, Lisp_Object ch, Lisp_Object all) |
0d407d77 | 2030 | { |
1337ac77 | 2031 | int c; |
0fdf26e6 KH |
2032 | Lisp_Object fontset, elt, list, repertory, val; |
2033 | int i, j; | |
a3d16f39 | 2034 | Lisp_Object frame; |
0d407d77 | 2035 | |
a3d16f39 KH |
2036 | frame = Qnil; |
2037 | fontset = check_fontset_name (name, &frame); | |
0d407d77 | 2038 | |
06f76f0d | 2039 | CHECK_CHARACTER (ch); |
0d407d77 | 2040 | c = XINT (ch); |
0fdf26e6 KH |
2041 | list = Qnil; |
2042 | while (1) | |
2043 | { | |
2044 | for (i = 0, elt = FONTSET_REF (fontset, c); i < 2; | |
2045 | i++, elt = FONTSET_FALLBACK (fontset)) | |
2046 | if (VECTORP (elt)) | |
2047 | for (j = 0; j < ASIZE (elt); j++) | |
2048 | { | |
a124bbb6 KH |
2049 | Lisp_Object family, registry; |
2050 | ||
0fdf26e6 | 2051 | val = AREF (elt, j); |
5fc05db0 | 2052 | if (NILP (val)) |
563a866e | 2053 | return Qnil; |
0fdf26e6 KH |
2054 | repertory = AREF (val, 1); |
2055 | if (INTEGERP (repertory)) | |
2056 | { | |
2057 | struct charset *charset = CHARSET_FROM_ID (XINT (repertory)); | |
2058 | ||
2059 | if (! CHAR_CHARSET_P (c, charset)) | |
2060 | continue; | |
2061 | } | |
2062 | else if (CHAR_TABLE_P (repertory)) | |
2063 | { | |
2064 | if (NILP (CHAR_TABLE_REF (repertory, c))) | |
2065 | continue; | |
2066 | } | |
2067 | val = AREF (val, 0); | |
a124bbb6 KH |
2068 | /* VAL is a FONT-SPEC */ |
2069 | family = AREF (val, FONT_FAMILY_INDEX); | |
2070 | if (! NILP (family)) | |
2071 | family = SYMBOL_NAME (family); | |
2072 | registry = AREF (val, FONT_REGISTRY_INDEX); | |
2073 | if (! NILP (registry)) | |
2074 | registry = SYMBOL_NAME (registry); | |
2075 | val = Fcons (family, registry); | |
0fdf26e6 KH |
2076 | if (NILP (all)) |
2077 | return val; | |
2078 | list = Fcons (val, list); | |
2079 | } | |
2080 | if (EQ (fontset, Vdefault_fontset)) | |
2081 | break; | |
2082 | fontset = Vdefault_fontset; | |
2083 | } | |
2084 | return (Fnreverse (list)); | |
0d407d77 | 2085 | } |
0d407d77 KH |
2086 | |
2087 | DEFUN ("fontset-list", Ffontset_list, Sfontset_list, 0, 0, 0, | |
335c5470 | 2088 | doc: /* Return a list of all defined fontset names. */) |
5842a27b | 2089 | (void) |
0d407d77 KH |
2090 | { |
2091 | Lisp_Object fontset, list; | |
2092 | int i; | |
2093 | ||
2094 | list = Qnil; | |
2095 | for (i = 0; i < ASIZE (Vfontset_table); i++) | |
2096 | { | |
2097 | fontset = FONTSET_FROM_ID (i); | |
2098 | if (!NILP (fontset) | |
2099 | && BASE_FONTSET_P (fontset)) | |
2100 | list = Fcons (FONTSET_NAME (fontset), list); | |
2101 | } | |
1ff005e1 | 2102 | |
0d407d77 KH |
2103 | return list; |
2104 | } | |
2105 | ||
452a78e0 KH |
2106 | |
2107 | #ifdef FONTSET_DEBUG | |
2108 | ||
2109 | Lisp_Object | |
ef1b0ba7 | 2110 | dump_fontset (Lisp_Object fontset) |
452a78e0 KH |
2111 | { |
2112 | Lisp_Object vec; | |
2113 | ||
2114 | vec = Fmake_vector (make_number (3), Qnil); | |
2115 | ASET (vec, 0, FONTSET_ID (fontset)); | |
2116 | ||
2117 | if (BASE_FONTSET_P (fontset)) | |
2118 | { | |
2119 | ASET (vec, 1, FONTSET_NAME (fontset)); | |
2120 | } | |
2121 | else | |
2122 | { | |
2123 | Lisp_Object frame; | |
2124 | ||
2125 | frame = FONTSET_FRAME (fontset); | |
2126 | if (FRAMEP (frame)) | |
2127 | { | |
2128 | FRAME_PTR f = XFRAME (frame); | |
2129 | ||
2130 | if (FRAME_LIVE_P (f)) | |
1c82b4b3 KH |
2131 | ASET (vec, 1, |
2132 | Fcons (FONTSET_NAME (FONTSET_BASE (fontset)), f->name)); | |
452a78e0 | 2133 | else |
1c82b4b3 KH |
2134 | ASET (vec, 1, |
2135 | Fcons (FONTSET_NAME (FONTSET_BASE (fontset)), Qnil)); | |
452a78e0 | 2136 | } |
eb36588a KH |
2137 | if (!NILP (FONTSET_DEFAULT (fontset))) |
2138 | ASET (vec, 2, FONTSET_ID (FONTSET_DEFAULT (fontset))); | |
452a78e0 KH |
2139 | } |
2140 | return vec; | |
2141 | } | |
2142 | ||
a7ca3326 | 2143 | DEFUN ("fontset-list-all", Ffontset_list_all, Sfontset_list_all, 0, 0, 0, |
452a78e0 | 2144 | doc: /* Return a brief summary of all fontsets for debug use. */) |
5842a27b | 2145 | (void) |
452a78e0 KH |
2146 | { |
2147 | Lisp_Object val; | |
2148 | int i; | |
2149 | ||
2150 | for (i = 0, val = Qnil; i < ASIZE (Vfontset_table); i++) | |
2151 | if (! NILP (AREF (Vfontset_table, i))) | |
2152 | val = Fcons (dump_fontset (AREF (Vfontset_table, i)), val); | |
2153 | return (Fnreverse (val)); | |
2154 | } | |
2155 | #endif /* FONTSET_DEBUG */ | |
2156 | ||
dfcf069d | 2157 | void |
971de7fb | 2158 | syms_of_fontset (void) |
4ed46869 | 2159 | { |
1d5d7200 | 2160 | DEFSYM (Qfontset, "fontset"); |
eb36588a | 2161 | Fput (Qfontset, Qchar_table_extra_slots, make_number (9)); |
d6aaac9e KH |
2162 | DEFSYM (Qfontset_info, "fontset-info"); |
2163 | Fput (Qfontset_info, Qchar_table_extra_slots, make_number (1)); | |
4ed46869 | 2164 | |
1d5d7200 KH |
2165 | DEFSYM (Qprepend, "prepend"); |
2166 | DEFSYM (Qappend, "append"); | |
c3fb88cc | 2167 | DEFSYM (Qlatin, "latin"); |
4ed46869 KH |
2168 | |
2169 | Vcached_fontset_data = Qnil; | |
2170 | staticpro (&Vcached_fontset_data); | |
2171 | ||
0d407d77 KH |
2172 | Vfontset_table = Fmake_vector (make_number (32), Qnil); |
2173 | staticpro (&Vfontset_table); | |
0d407d77 KH |
2174 | |
2175 | Vdefault_fontset = Fmake_char_table (Qfontset, Qnil); | |
2176 | staticpro (&Vdefault_fontset); | |
1ff005e1 KH |
2177 | FONTSET_ID (Vdefault_fontset) = make_number (0); |
2178 | FONTSET_NAME (Vdefault_fontset) | |
d67b4f80 | 2179 | = make_pure_c_string ("-*-*-*-*-*-*-*-*-*-*-*-*-fontset-default"); |
ff7a2223 | 2180 | ASET (Vfontset_table, 0, Vdefault_fontset); |
1ff005e1 | 2181 | next_fontset_id = 1; |
4ed46869 | 2182 | |
452a78e0 KH |
2183 | auto_fontset_alist = Qnil; |
2184 | staticpro (&auto_fontset_alist); | |
2185 | ||
29208e82 | 2186 | DEFVAR_LISP ("font-encoding-charset-alist", Vfont_encoding_charset_alist, |
28e2436a KH |
2187 | doc: /* |
2188 | Alist of charsets vs the charsets to determine the preferred font encoding. | |
eb152aa9 | 2189 | Each element looks like (CHARSET . ENCODING-CHARSET), |
28e2436a KH |
2190 | where ENCODING-CHARSET is a charset registered in the variable |
2191 | `font-encoding-alist' as ENCODING. | |
2192 | ||
2193 | When a text has a property `charset' and the value is CHARSET, a font | |
2194 | whose encoding corresponds to ENCODING-CHARSET is preferred. */); | |
2195 | Vfont_encoding_charset_alist = Qnil; | |
2196 | ||
29208e82 | 2197 | DEFVAR_LISP ("use-default-ascent", Vuse_default_ascent, |
1d5d7200 KH |
2198 | doc: /* |
2199 | Char table of characters whose ascent values should be ignored. | |
335c5470 | 2200 | If an entry for a character is non-nil, the ascent value of the glyph |
eb152aa9 | 2201 | is assumed to be specified by _MULE_DEFAULT_ASCENT property of a font. |
335c5470 PJ |
2202 | |
2203 | This affects how a composite character which contains | |
2204 | such a character is displayed on screen. */); | |
2aeafb78 KH |
2205 | Vuse_default_ascent = Qnil; |
2206 | ||
29208e82 | 2207 | DEFVAR_LISP ("ignore-relative-composition", Vignore_relative_composition, |
1d5d7200 | 2208 | doc: /* |
eb152aa9 | 2209 | Char table of characters which are not composed relatively. |
335c5470 PJ |
2210 | If an entry for a character is non-nil, a composition sequence |
2211 | which contains that character is displayed so that | |
2212 | the glyph of that character is put without considering | |
2213 | an ascent and descent value of a previous character. */); | |
810abb87 | 2214 | Vignore_relative_composition = Qnil; |
6a7e6d80 | 2215 | |
29208e82 | 2216 | DEFVAR_LISP ("alternate-fontname-alist", Valternate_fontname_alist, |
335c5470 PJ |
2217 | doc: /* Alist of fontname vs list of the alternate fontnames. |
2218 | When a specified font name is not found, the corresponding | |
2219 | alternate fontnames (if any) are tried instead. */); | |
01d4b817 | 2220 | Valternate_fontname_alist = Qnil; |
8c83e4f9 | 2221 | |
29208e82 | 2222 | DEFVAR_LISP ("fontset-alias-alist", Vfontset_alias_alist, |
335c5470 | 2223 | doc: /* Alist of fontset names vs the aliases. */); |
1ff005e1 | 2224 | Vfontset_alias_alist = Fcons (Fcons (FONTSET_NAME (Vdefault_fontset), |
d67b4f80 | 2225 | make_pure_c_string ("fontset-default")), |
1ff005e1 | 2226 | Qnil); |
1c283e35 | 2227 | |
810abb87 | 2228 | DEFVAR_LISP ("vertical-centering-font-regexp", |
29208e82 | 2229 | Vvertical_centering_font_regexp, |
335c5470 PJ |
2230 | doc: /* *Regexp matching font names that require vertical centering on display. |
2231 | When a character is displayed with such fonts, the character is displayed | |
fc8865fc | 2232 | at the vertical center of lines. */); |
810abb87 KH |
2233 | Vvertical_centering_font_regexp = Qnil; |
2234 | ||
29208e82 | 2235 | DEFVAR_LISP ("otf-script-alist", Votf_script_alist, |
21ff5ed6 KH |
2236 | doc: /* Alist of OpenType script tags vs the corresponding script names. */); |
2237 | Votf_script_alist = Qnil; | |
2238 | ||
4ed46869 KH |
2239 | defsubr (&Squery_fontset); |
2240 | defsubr (&Snew_fontset); | |
2241 | defsubr (&Sset_fontset_font); | |
1ff005e1 | 2242 | defsubr (&Sinternal_char_font); |
4ed46869 | 2243 | defsubr (&Sfontset_info); |
0d407d77 KH |
2244 | defsubr (&Sfontset_font); |
2245 | defsubr (&Sfontset_list); | |
452a78e0 KH |
2246 | #ifdef FONTSET_DEBUG |
2247 | defsubr (&Sfontset_list_all); | |
2248 | #endif | |
e3400864 | 2249 | } |