Commit | Line | Data |
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4ed46869 | 1 | /* Fontset handler. |
114f9c96 | 2 | Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
429ab54e | 3 | Free Software Foundation, Inc. |
7976eda0 | 4 | Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
114f9c96 | 5 | 2005, 2006, 2007, 2008, 2009, 2010 |
ce03bf76 KH |
6 | National Institute of Advanced Industrial Science and Technology (AIST) |
7 | Registration Number H14PRO021 | |
8aa07a8d | 8 | Copyright (C) 2003, 2006 |
06f76f0d KH |
9 | National Institute of Advanced Industrial Science and Technology (AIST) |
10 | Registration Number H13PRO009 | |
eb152aa9 | 11 | |
369314dc KH |
12 | This file is part of GNU Emacs. |
13 | ||
9ec0b715 | 14 | GNU Emacs is free software: you can redistribute it and/or modify |
369314dc | 15 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
16 | the Free Software Foundation, either version 3 of the License, or |
17 | (at your option) any later version. | |
4ed46869 | 18 | |
369314dc KH |
19 | GNU Emacs is distributed in the hope that it will be useful, |
20 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
22 | GNU General Public License for more details. | |
4ed46869 | 23 | |
369314dc | 24 | You should have received a copy of the GNU General Public License |
9ec0b715 | 25 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
4ed46869 | 26 | |
0d407d77 KH |
27 | /* #define FONTSET_DEBUG */ |
28 | ||
4ed46869 | 29 | #include <config.h> |
0d407d77 | 30 | #include <stdio.h> |
d7306fe6 | 31 | #include <setjmp.h> |
0d407d77 | 32 | |
4ed46869 | 33 | #include "lisp.h" |
06f76f0d | 34 | #include "blockinput.h" |
1ff005e1 | 35 | #include "buffer.h" |
06f76f0d | 36 | #include "character.h" |
4ed46869 KH |
37 | #include "charset.h" |
38 | #include "ccl.h" | |
2538fae4 | 39 | #include "keyboard.h" |
4ed46869 | 40 | #include "frame.h" |
0d407d77 | 41 | #include "dispextern.h" |
e1a14cdc | 42 | #include "intervals.h" |
3541bb8f | 43 | #include "fontset.h" |
0d407d77 | 44 | #include "window.h" |
92c15c34 KH |
45 | #ifdef HAVE_X_WINDOWS |
46 | #include "xterm.h" | |
47 | #endif | |
48 | #ifdef WINDOWSNT | |
49 | #include "w32term.h" | |
50 | #endif | |
edfda783 AR |
51 | #ifdef HAVE_NS |
52 | #include "nsterm.h" | |
53 | #endif | |
fa971ac3 | 54 | #include "termhooks.h" |
0d407d77 | 55 | |
8aa07a8d | 56 | #include "font.h" |
8aa07a8d | 57 | |
0d407d77 | 58 | #undef xassert |
8f924df7 | 59 | #ifdef FONTSET_DEBUG |
0d407d77 KH |
60 | #define xassert(X) do {if (!(X)) abort ();} while (0) |
61 | #undef INLINE | |
62 | #define INLINE | |
8f924df7 KH |
63 | #else /* not FONTSET_DEBUG */ |
64 | #define xassert(X) (void) 0 | |
65 | #endif /* not FONTSET_DEBUG */ | |
0d407d77 | 66 | |
a980c932 | 67 | EXFUN (Fclear_face_cache, 1); |
0d407d77 KH |
68 | |
69 | /* FONTSET | |
70 | ||
71 | A fontset is a collection of font related information to give | |
1d5d7200 KH |
72 | similar appearance (style, etc) of characters. A fontset has two |
73 | roles. One is to use for the frame parameter `font' as if it is an | |
74 | ASCII font. In that case, Emacs uses the font specified for | |
75 | `ascii' script for the frame's default font. | |
76 | ||
77 | Another role, the more important one, is to provide information | |
78 | about which font to use for each non-ASCII character. | |
79 | ||
80 | There are two kinds of fontsets; base and realized. A base fontset | |
81 | is created by `new-fontset' from Emacs Lisp explicitly. A realized | |
82 | fontset is created implicitly when a face is realized for ASCII | |
83 | characters. A face is also realized for non-ASCII characters based | |
84 | on an ASCII face. All of non-ASCII faces based on the same ASCII | |
85 | face share the same realized fontset. | |
8f924df7 | 86 | |
06f76f0d KH |
87 | A fontset object is implemented by a char-table whose default value |
88 | and parent are always nil. | |
fc8865fc | 89 | |
1d5d7200 KH |
90 | An element of a base fontset is a vector of FONT-DEFs which itself |
91 | is a vector [ FONT-SPEC ENCODING REPERTORY ]. | |
92 | ||
f088b054 KH |
93 | An element of a realized fontset is nil, t, 0, or a vector of this |
94 | form: | |
7e1a1cd9 | 95 | |
581f7ac7 KH |
96 | [ CHARSET-ORDERED-LIST-TICK PREFERRED-RFONT-DEF |
97 | RFONT-DEF0 RFONT-DEF1 ... ] | |
0d407d77 | 98 | |
7e1a1cd9 | 99 | RFONT-DEFn (i.e. Realized FONT-DEF) has this form: |
0d407d77 | 100 | |
581f7ac7 | 101 | [ FACE-ID FONT-DEF FONT-OBJECT SORTING-SCORE ] |
0d407d77 | 102 | |
581f7ac7 | 103 | RFONT-DEFn are automatically reordered by the current charset |
1d5d7200 | 104 | priority list. |
0d407d77 | 105 | |
7e1a1cd9 KH |
106 | The value nil means that we have not yet generated the above vector |
107 | from the base of the fontset. | |
0d407d77 | 108 | |
1d5d7200 KH |
109 | The value t means that no font is available for the corresponding |
110 | range of characters. | |
0d407d77 | 111 | |
f088b054 KH |
112 | The value 0 means that no font is available for the corresponding |
113 | range of characters in this fontset, but may be available in the | |
114 | default fontset. | |
115 | ||
0d407d77 | 116 | |
eb36588a | 117 | A fontset has 9 extra slots. |
0d407d77 | 118 | |
1d5d7200 | 119 | The 1st slot: the ID number of the fontset |
0d407d77 | 120 | |
1d5d7200 KH |
121 | The 2nd slot: |
122 | base: the name of the fontset | |
123 | realized: nil | |
0d407d77 | 124 | |
1d5d7200 | 125 | The 3rd slot: |
d6aaac9e | 126 | base: nil |
1d5d7200 | 127 | realized: the base fontset |
06f76f0d | 128 | |
1d5d7200 KH |
129 | The 4th slot: |
130 | base: nil | |
131 | realized: the frame that the fontset belongs to | |
0d407d77 | 132 | |
1d5d7200 KH |
133 | The 5th slot: |
134 | base: the font name for ASCII characters | |
135 | realized: nil | |
0d407d77 | 136 | |
1d5d7200 KH |
137 | The 6th slot: |
138 | base: nil | |
139 | realized: the ID number of a face to use for characters that | |
140 | has no font in a realized fontset. | |
0d407d77 | 141 | |
1d5d7200 KH |
142 | The 7th slot: |
143 | base: nil | |
144 | realized: Alist of font index vs the corresponding repertory | |
145 | char-table. | |
eb152aa9 | 146 | |
d6aaac9e KH |
147 | The 8th slot: |
148 | base: nil | |
149 | realized: If the base is not the default fontset, a fontset | |
150 | realized from the default fontset, else nil. | |
1d5d7200 | 151 | |
eb36588a | 152 | The 9th slot: |
cc7b6145 KH |
153 | base: Same as element value (but for fallback fonts). |
154 | realized: Likewise. | |
eb36588a | 155 | |
1d5d7200 | 156 | All fontsets are recorded in the vector Vfontset_table. |
0d407d77 KH |
157 | |
158 | ||
159 | DEFAULT FONTSET | |
160 | ||
1d5d7200 KH |
161 | There's a special base fontset named `default fontset' which |
162 | defines the default font specifications. When a base fontset | |
163 | doesn't specify a font for a specific character, the corresponding | |
164 | value in the default fontset is used. | |
0d407d77 | 165 | |
afe93d01 KH |
166 | The parent of a realized fontset created for such a face that has |
167 | no fontset is the default fontset. | |
0d407d77 KH |
168 | |
169 | ||
170 | These structures are hidden from the other codes than this file. | |
171 | The other codes handle fontsets only by their ID numbers. They | |
06f76f0d KH |
172 | usually use the variable name `fontset' for IDs. But, in this |
173 | file, we always use varialbe name `id' for IDs, and name `fontset' | |
1d5d7200 | 174 | for an actual fontset object, i.e., char-table. |
0d407d77 KH |
175 | |
176 | */ | |
177 | ||
178 | /********** VARIABLES and FUNCTION PROTOTYPES **********/ | |
179 | ||
d6aaac9e KH |
180 | static Lisp_Object Qfontset; |
181 | static Lisp_Object Qfontset_info; | |
1d5d7200 | 182 | static Lisp_Object Qprepend, Qappend; |
ef6e0694 | 183 | Lisp_Object Qlatin; |
0d407d77 KH |
184 | |
185 | /* Vector containing all fontsets. */ | |
186 | static Lisp_Object Vfontset_table; | |
187 | ||
fc8865fc | 188 | /* Next possibly free fontset ID. Usually this keeps the minimum |
0d407d77 KH |
189 | fontset ID not yet used. */ |
190 | static int next_fontset_id; | |
191 | ||
192 | /* The default fontset. This gives default FAMILY and REGISTRY of | |
06f76f0d | 193 | font for each character. */ |
0d407d77 | 194 | static Lisp_Object Vdefault_fontset; |
4ed46869 | 195 | |
28e2436a | 196 | Lisp_Object Vfont_encoding_charset_alist; |
6a7e6d80 | 197 | Lisp_Object Vuse_default_ascent; |
2aeafb78 | 198 | Lisp_Object Vignore_relative_composition; |
01d4b817 | 199 | Lisp_Object Valternate_fontname_alist; |
1c283e35 | 200 | Lisp_Object Vfontset_alias_alist; |
810abb87 | 201 | Lisp_Object Vvertical_centering_font_regexp; |
21ff5ed6 | 202 | Lisp_Object Votf_script_alist; |
4ed46869 | 203 | |
4ed46869 | 204 | /* Check if any window system is used now. */ |
f57e2426 | 205 | void (*check_window_system_func) (void); |
4ed46869 | 206 | |
0d407d77 KH |
207 | |
208 | /* Prototype declarations for static functions. */ | |
f57e2426 J |
209 | static Lisp_Object fontset_add (Lisp_Object, Lisp_Object, Lisp_Object, |
210 | Lisp_Object); | |
211 | static Lisp_Object fontset_find_font (Lisp_Object, int, struct face *, | |
212 | int, int); | |
213 | static void reorder_font_vector (Lisp_Object, struct font *); | |
214 | static Lisp_Object fontset_font (Lisp_Object, int, struct face *, int); | |
215 | static Lisp_Object make_fontset (Lisp_Object, Lisp_Object, Lisp_Object); | |
216 | static Lisp_Object fontset_pattern_regexp (Lisp_Object); | |
217 | static void accumulate_script_ranges (Lisp_Object, Lisp_Object, | |
218 | Lisp_Object); | |
219 | Lisp_Object find_font_encoding (Lisp_Object); | |
220 | ||
221 | static void set_fontset_font (Lisp_Object, Lisp_Object); | |
2449d4d0 | 222 | |
556383ac KH |
223 | #ifdef FONTSET_DEBUG |
224 | ||
225 | /* Return 1 if ID is a valid fontset id, else return 0. */ | |
226 | ||
227 | static int | |
228 | fontset_id_valid_p (id) | |
229 | int id; | |
230 | { | |
231 | return (id >= 0 && id < ASIZE (Vfontset_table) - 1); | |
232 | } | |
233 | ||
234 | #endif | |
235 | ||
0d407d77 KH |
236 | |
237 | \f | |
238 | /********** MACROS AND FUNCTIONS TO HANDLE FONTSET **********/ | |
239 | ||
0d407d77 KH |
240 | /* Return the fontset with ID. No check of ID's validness. */ |
241 | #define FONTSET_FROM_ID(id) AREF (Vfontset_table, id) | |
242 | ||
afe93d01 | 243 | /* Macros to access special values of FONTSET. */ |
0d407d77 | 244 | #define FONTSET_ID(fontset) XCHAR_TABLE (fontset)->extras[0] |
06f76f0d KH |
245 | |
246 | /* Macros to access special values of (base) FONTSET. */ | |
0d407d77 | 247 | #define FONTSET_NAME(fontset) XCHAR_TABLE (fontset)->extras[1] |
06f76f0d | 248 | #define FONTSET_ASCII(fontset) XCHAR_TABLE (fontset)->extras[4] |
581f7ac7 | 249 | #define FONTSET_SPEC(fontset) XCHAR_TABLE (fontset)->extras[5] |
06f76f0d | 250 | |
06f76f0d KH |
251 | /* Macros to access special values of (realized) FONTSET. */ |
252 | #define FONTSET_BASE(fontset) XCHAR_TABLE (fontset)->extras[2] | |
253 | #define FONTSET_FRAME(fontset) XCHAR_TABLE (fontset)->extras[3] | |
9459b1e9 | 254 | #define FONTSET_OBJLIST(fontset) XCHAR_TABLE (fontset)->extras[4] |
1d5d7200 KH |
255 | #define FONTSET_NOFONT_FACE(fontset) XCHAR_TABLE (fontset)->extras[5] |
256 | #define FONTSET_REPERTORY(fontset) XCHAR_TABLE (fontset)->extras[6] | |
eb36588a KH |
257 | #define FONTSET_DEFAULT(fontset) XCHAR_TABLE (fontset)->extras[7] |
258 | ||
cc7b6145 | 259 | /* For both base and realized fontset. */ |
eb36588a | 260 | #define FONTSET_FALLBACK(fontset) XCHAR_TABLE (fontset)->extras[8] |
0d407d77 | 261 | |
e3400864 | 262 | #define BASE_FONTSET_P(fontset) (NILP (FONTSET_BASE (fontset))) |
0d407d77 KH |
263 | |
264 | ||
581f7ac7 KH |
265 | /* Macros for FONT-DEF and RFONT-DEF of fontset. */ |
266 | #define FONT_DEF_NEW(font_def, font_spec, encoding, repertory) \ | |
267 | do { \ | |
268 | (font_def) = Fmake_vector (make_number (3), (font_spec)); \ | |
269 | ASET ((font_def), 1, encoding); \ | |
270 | ASET ((font_def), 2, repertory); \ | |
271 | } while (0) | |
272 | ||
273 | #define FONT_DEF_SPEC(font_def) AREF (font_def, 0) | |
274 | #define FONT_DEF_ENCODING(font_def) AREF (font_def, 1) | |
275 | #define FONT_DEF_REPERTORY(font_def) AREF (font_def, 2) | |
276 | ||
277 | #define RFONT_DEF_FACE(rfont_def) AREF (rfont_def, 0) | |
278 | #define RFONT_DEF_SET_FACE(rfont_def, face_id) \ | |
279 | ASET ((rfont_def), 0, make_number (face_id)) | |
280 | #define RFONT_DEF_FONT_DEF(rfont_def) AREF (rfont_def, 1) | |
281 | #define RFONT_DEF_SPEC(rfont_def) FONT_DEF_SPEC (AREF (rfont_def, 1)) | |
282 | #define RFONT_DEF_REPERTORY(rfont_def) FONT_DEF_REPERTORY (AREF (rfont_def, 1)) | |
283 | #define RFONT_DEF_OBJECT(rfont_def) AREF (rfont_def, 2) | |
284 | #define RFONT_DEF_SET_OBJECT(rfont_def, object) \ | |
285 | ASET ((rfont_def), 2, (object)) | |
9dfdbc0a KH |
286 | /* Score of RFONT_DEF is an integer value; the lowest 8 bits represent |
287 | the order of listing by font backends, the higher bits represents | |
288 | the order given by charset priority list. The smaller value is | |
289 | preferable. */ | |
581f7ac7 KH |
290 | #define RFONT_DEF_SCORE(rfont_def) XINT (AREF (rfont_def, 3)) |
291 | #define RFONT_DEF_SET_SCORE(rfont_def, score) \ | |
292 | ASET ((rfont_def), 3, make_number (score)) | |
293 | #define RFONT_DEF_NEW(rfont_def, font_def) \ | |
294 | do { \ | |
295 | (rfont_def) = Fmake_vector (make_number (4), Qnil); \ | |
296 | ASET ((rfont_def), 1, (font_def)); \ | |
297 | RFONT_DEF_SET_SCORE ((rfont_def), 0); \ | |
298 | } while (0) | |
299 | ||
300 | ||
1d5d7200 KH |
301 | /* Return the element of FONTSET for the character C. If FONTSET is a |
302 | base fontset other then the default fontset and FONTSET doesn't | |
303 | contain information for C, return the information in the default | |
304 | fontset. */ | |
0d407d77 | 305 | |
1d5d7200 KH |
306 | #define FONTSET_REF(fontset, c) \ |
307 | (EQ (fontset, Vdefault_fontset) \ | |
308 | ? CHAR_TABLE_REF (fontset, c) \ | |
309 | : fontset_ref ((fontset), (c))) | |
0d407d77 | 310 | |
afe93d01 | 311 | static Lisp_Object |
971de7fb | 312 | fontset_ref (Lisp_Object fontset, int c) |
0d407d77 | 313 | { |
06f76f0d KH |
314 | Lisp_Object elt; |
315 | ||
1d5d7200 KH |
316 | elt = CHAR_TABLE_REF (fontset, c); |
317 | if (NILP (elt) && ! EQ (fontset, Vdefault_fontset) | |
318 | /* Don't check Vdefault_fontset for a realized fontset. */ | |
319 | && NILP (FONTSET_BASE (fontset))) | |
320 | elt = CHAR_TABLE_REF (Vdefault_fontset, c); | |
0d407d77 KH |
321 | return elt; |
322 | } | |
323 | ||
1d5d7200 KH |
324 | /* Set elements of FONTSET for characters in RANGE to the value ELT. |
325 | RANGE is a cons (FROM . TO), where FROM and TO are character codes | |
326 | specifying a range. */ | |
327 | ||
328 | #define FONTSET_SET(fontset, range, elt) \ | |
329 | Fset_char_table_range ((fontset), (range), (elt)) | |
330 | ||
0d407d77 | 331 | |
1d5d7200 | 332 | /* Modify the elements of FONTSET for characters in RANGE by replacing |
6bad8007 | 333 | with ELT or adding ELT. RANGE is a cons (FROM . TO), where FROM |
1d5d7200 KH |
334 | and TO are character codes specifying a range. If ADD is nil, |
335 | replace with ELT, if ADD is `prepend', prepend ELT, otherwise, | |
336 | append ELT. */ | |
337 | ||
cc7b6145 KH |
338 | #define FONTSET_ADD(fontset, range, elt, add) \ |
339 | (NILP (add) \ | |
340 | ? (NILP (range) \ | |
341 | ? (FONTSET_FALLBACK (fontset) = Fmake_vector (make_number (1), (elt))) \ | |
342 | : Fset_char_table_range ((fontset), (range), \ | |
343 | Fmake_vector (make_number (1), (elt)))) \ | |
1d5d7200 | 344 | : fontset_add ((fontset), (range), (elt), (add))) |
0d407d77 | 345 | |
b11a4ed7 | 346 | static Lisp_Object |
971de7fb | 347 | fontset_add (Lisp_Object fontset, Lisp_Object range, Lisp_Object elt, Lisp_Object add) |
06f76f0d | 348 | { |
eb36588a KH |
349 | Lisp_Object args[2]; |
350 | int idx = (EQ (add, Qappend) ? 0 : 1); | |
351 | ||
352 | args[1 - idx] = Fmake_vector (make_number (1), elt); | |
353 | ||
354 | if (CONSP (range)) | |
355 | { | |
356 | int from = XINT (XCAR (range)); | |
357 | int to = XINT (XCDR (range)); | |
358 | int from1, to1; | |
359 | ||
360 | do { | |
5b30be1a | 361 | from1 = from, to1 = to; |
eb36588a | 362 | args[idx] = char_table_ref_and_range (fontset, from, &from1, &to1); |
eb36588a KH |
363 | char_table_set_range (fontset, from, to1, |
364 | NILP (args[idx]) ? args[1 - idx] | |
365 | : Fvconcat (2, args)); | |
366 | from = to1 + 1; | |
367 | } while (from < to); | |
368 | } | |
369 | else | |
370 | { | |
371 | args[idx] = FONTSET_FALLBACK (fontset); | |
372 | FONTSET_FALLBACK (fontset) | |
373 | = NILP (args[idx]) ? args[1 - idx] : Fvconcat (2, args); | |
374 | } | |
b11a4ed7 | 375 | return Qnil; |
1d5d7200 KH |
376 | } |
377 | ||
581f7ac7 | 378 | static int |
971de7fb | 379 | fontset_compare_rfontdef (const void *val1, const void *val2) |
581f7ac7 | 380 | { |
41ad6003 KH |
381 | return (RFONT_DEF_SCORE (*(Lisp_Object *) val1) |
382 | - RFONT_DEF_SCORE (*(Lisp_Object *) val2)); | |
581f7ac7 | 383 | } |
1d5d7200 | 384 | |
ea0162a6 | 385 | /* Update FONT-GROUP which has this form: |
581f7ac7 KH |
386 | [ CHARSET-ORDERED-LIST-TICK PREFERRED-RFONT-DEF |
387 | RFONT-DEF0 RFONT-DEF1 ... ] | |
20746fe4 | 388 | Reorder RFONT-DEFs according to the current language, and update |
581f7ac7 KH |
389 | CHARSET-ORDERED-LIST-TICK. |
390 | ||
391 | If PREFERRED_FAMILY is not nil, that family has the higher priority | |
392 | if the encoding charsets or languages in font-specs are the same. */ | |
393 | ||
0d407d77 | 394 | static void |
971de7fb | 395 | reorder_font_vector (Lisp_Object font_group, struct font *font) |
1d5d7200 | 396 | { |
41ad6003 | 397 | Lisp_Object vec, font_object; |
1d5d7200 | 398 | int size; |
581f7ac7 KH |
399 | int i; |
400 | int score_changed = 0; | |
1d5d7200 | 401 | |
41ad6003 KH |
402 | if (font) |
403 | XSETFONT (font_object, font); | |
404 | else | |
405 | font_object = Qnil; | |
406 | ||
407 | vec = XCDR (font_group); | |
408 | size = ASIZE (vec); | |
409 | /* Exclude the tailing nil element from the reordering. */ | |
410 | if (NILP (AREF (vec, size - 1))) | |
411 | size--; | |
581f7ac7 KH |
412 | |
413 | for (i = 0; i < size; i++) | |
6bad8007 | 414 | { |
41ad6003 | 415 | Lisp_Object rfont_def = AREF (vec, i); |
581f7ac7 KH |
416 | Lisp_Object font_def = RFONT_DEF_FONT_DEF (rfont_def); |
417 | Lisp_Object font_spec = FONT_DEF_SPEC (font_def); | |
41ad6003 | 418 | int score = RFONT_DEF_SCORE (rfont_def) & 0xFF; |
9dfdbc0a | 419 | Lisp_Object otf_spec = Ffont_get (font_spec, QCotf); |
581f7ac7 | 420 | |
9dfdbc0a KH |
421 | if (! NILP (otf_spec)) |
422 | /* A font-spec with :otf is preferable regardless of encoding | |
423 | and language.. */ | |
424 | ; | |
425 | else if (! font_match_p (font_spec, font_object)) | |
eb152aa9 | 426 | { |
cd872f08 | 427 | Lisp_Object encoding = FONT_DEF_ENCODING (font_def); |
581f7ac7 | 428 | |
cd872f08 | 429 | if (! NILP (encoding)) |
41ad6003 KH |
430 | { |
431 | Lisp_Object tail; | |
581f7ac7 | 432 | |
41ad6003 KH |
433 | for (tail = Vcharset_ordered_list; |
434 | ! EQ (tail, Vcharset_non_preferred_head) && CONSP (tail); | |
435 | score += 0x100, tail = XCDR (tail)) | |
cd872f08 | 436 | if (EQ (encoding, XCAR (tail))) |
41ad6003 KH |
437 | break; |
438 | } | |
439 | else | |
440 | { | |
441 | Lisp_Object lang = Ffont_get (font_spec, QClang); | |
442 | ||
443 | if (! NILP (lang) | |
444 | && ! EQ (lang, Vcurrent_iso639_language) | |
445 | && (! CONSP (Vcurrent_iso639_language) | |
446 | || NILP (Fmemq (lang, Vcurrent_iso639_language)))) | |
447 | score |= 0x100; | |
448 | } | |
ea0162a6 | 449 | } |
581f7ac7 | 450 | if (RFONT_DEF_SCORE (rfont_def) != score) |
ea0162a6 | 451 | { |
581f7ac7 KH |
452 | RFONT_DEF_SET_SCORE (rfont_def, score); |
453 | score_changed = 1; | |
ea0162a6 | 454 | } |
6bad8007 | 455 | } |
1d5d7200 | 456 | |
581f7ac7 | 457 | if (score_changed) |
41ad6003 | 458 | qsort (XVECTOR (vec)->contents, size, sizeof (Lisp_Object), |
581f7ac7 | 459 | fontset_compare_rfontdef); |
41ad6003 KH |
460 | XSETCAR (font_group, make_number (charset_ordered_list_tick)); |
461 | } | |
462 | ||
f084f942 KH |
463 | /* Return a font-group (actually a cons (-1 . FONT-GROUP-VECTOR)) for |
464 | character C in FONTSET. If C is -1, return a fallback font-group. | |
465 | If C is not -1, the value may be Qt (FONTSET doesn't have a font | |
466 | for C even in the fallback group, or 0 (a font for C may be found | |
467 | only in the fallback group). */ | |
468 | ||
41ad6003 | 469 | static Lisp_Object |
3cba9369 | 470 | fontset_get_font_group (Lisp_Object fontset, int c) |
41ad6003 KH |
471 | { |
472 | Lisp_Object font_group; | |
473 | Lisp_Object base_fontset; | |
5b30be1a | 474 | int from = 0, to = MAX_CHAR, i; |
28e2436a | 475 | |
41ad6003 KH |
476 | xassert (! BASE_FONTSET_P (fontset)); |
477 | if (c >= 0) | |
478 | font_group = CHAR_TABLE_REF (fontset, c); | |
479 | else | |
480 | font_group = FONTSET_FALLBACK (fontset); | |
481 | if (! NILP (font_group)) | |
482 | return font_group; | |
483 | base_fontset = FONTSET_BASE (fontset); | |
484 | if (c >= 0) | |
485 | font_group = char_table_ref_and_range (base_fontset, c, &from, &to); | |
486 | else | |
487 | font_group = FONTSET_FALLBACK (base_fontset); | |
488 | if (NILP (font_group)) | |
f088b054 | 489 | { |
f084f942 | 490 | font_group = make_number (0); |
f088b054 | 491 | if (c >= 0) |
f084f942 KH |
492 | char_table_set_range (fontset, from, to, font_group); |
493 | return font_group; | |
f088b054 | 494 | } |
41ad6003 KH |
495 | font_group = Fcopy_sequence (font_group); |
496 | for (i = 0; i < ASIZE (font_group); i++) | |
497 | if (! NILP (AREF (font_group, i))) | |
498 | { | |
499 | Lisp_Object rfont_def; | |
500 | ||
501 | RFONT_DEF_NEW (rfont_def, AREF (font_group, i)); | |
502 | /* Remember the original order. */ | |
503 | RFONT_DEF_SET_SCORE (rfont_def, i); | |
504 | ASET (font_group, i, rfont_def); | |
505 | } | |
506 | font_group = Fcons (make_number (-1), font_group); | |
507 | if (c >= 0) | |
508 | char_table_set_range (fontset, from, to, font_group); | |
509 | else | |
510 | FONTSET_FALLBACK (fontset) = font_group; | |
511 | return font_group; | |
0d407d77 KH |
512 | } |
513 | ||
7e1a1cd9 | 514 | /* Return RFONT-DEF (vector) in the realized fontset FONTSET for the |
d67f7f1a KH |
515 | character C. If no font is found, return Qnil if there's a |
516 | possibility that the default fontset or the fallback font groups | |
517 | have a proper font, and return Qt if not. | |
518 | ||
519 | If a font is found but is not yet opened, open it (if FACE is not | |
520 | NULL) or return Qnil (if FACE is NULL). | |
521 | ||
1c82b4b3 KH |
522 | ID is a charset-id that must be preferred, or -1 meaning no |
523 | preference. | |
d67f7f1a | 524 | |
ea0162a6 | 525 | If FALLBACK is nonzero, search only fallback fonts. */ |
0d407d77 | 526 | |
7e1a1cd9 | 527 | static Lisp_Object |
971de7fb | 528 | fontset_find_font (Lisp_Object fontset, int c, struct face *face, int id, int fallback) |
0d407d77 | 529 | { |
162f5458 | 530 | Lisp_Object vec, font_group; |
374bf7e4 | 531 | int i, charset_matched = 0, found_index; |
2a1ef5be KH |
532 | FRAME_PTR f = (FRAMEP (FONTSET_FRAME (fontset)) |
533 | ? XFRAME (FONTSET_FRAME (fontset)) : XFRAME (selected_frame)); | |
a71ccf3a | 534 | Lisp_Object rfont_def; |
0d407d77 | 535 | |
41ad6003 KH |
536 | font_group = fontset_get_font_group (fontset, fallback ? -1 : c); |
537 | if (! CONSP (font_group)) | |
bf86d09c | 538 | return font_group; |
41ad6003 KH |
539 | vec = XCDR (font_group); |
540 | if (ASIZE (vec) == 0) | |
541 | return Qnil; | |
eaa0402c | 542 | |
41ad6003 | 543 | if (ASIZE (vec) > 1) |
1d5d7200 | 544 | { |
41ad6003 KH |
545 | if (XINT (XCAR (font_group)) != charset_ordered_list_tick) |
546 | /* We have just created the font-group, | |
547 | or the charset priorities were changed. */ | |
548 | reorder_font_vector (font_group, face->ascii_face->font); | |
549 | if (id >= 0) | |
550 | /* Find a spec matching with the charset ID to try at | |
551 | first. */ | |
552 | for (i = 0; i < ASIZE (vec); i++) | |
553 | { | |
0ff75233 KH |
554 | Lisp_Object repertory; |
555 | ||
a71ccf3a | 556 | rfont_def = AREF (vec, i); |
0ff75233 KH |
557 | if (NILP (rfont_def)) |
558 | break; | |
559 | repertory = FONT_DEF_REPERTORY (RFONT_DEF_FONT_DEF (rfont_def)); | |
41ad6003 KH |
560 | |
561 | if (XINT (repertory) == id) | |
eaa0402c | 562 | { |
41ad6003 | 563 | charset_matched = i; |
581f7ac7 | 564 | break; |
41ad6003 KH |
565 | } |
566 | } | |
581f7ac7 | 567 | } |
1d5d7200 | 568 | |
7e1a1cd9 | 569 | /* Find the first available font in the vector of RFONT-DEF. */ |
41ad6003 | 570 | for (i = 0; i < ASIZE (vec); i++) |
0d407d77 | 571 | { |
a71ccf3a | 572 | Lisp_Object font_def; |
dbf46ba6 | 573 | Lisp_Object font_entity, font_object; |
581f7ac7 | 574 | |
635c75b1 | 575 | found_index = i; |
374bf7e4 | 576 | if (i == 0) |
41ad6003 | 577 | { |
374bf7e4 KH |
578 | if (charset_matched > 0) |
579 | { | |
635c75b1 KH |
580 | /* Try the element matching with the charset ID at first. */ |
581 | found_index = charset_matched; | |
582 | /* Make this negative so that we don't come here in the | |
583 | next loop. */ | |
374bf7e4 | 584 | charset_matched = - charset_matched; |
635c75b1 | 585 | /* We must try the first element in the next loop. */ |
374bf7e4 KH |
586 | i--; |
587 | } | |
41ad6003 | 588 | } |
635c75b1 | 589 | else if (i == - charset_matched) |
374bf7e4 KH |
590 | { |
591 | /* We have already tried this element and the followings | |
635c75b1 KH |
592 | that have the same font specifications in the first |
593 | iteration. So, skip them all. */ | |
374bf7e4 KH |
594 | rfont_def = AREF (vec, i); |
595 | font_def = RFONT_DEF_FONT_DEF (rfont_def); | |
596 | for (; i + 1 < ASIZE (vec); i++) | |
597 | { | |
598 | rfont_def = AREF (vec, i + 1); | |
599 | if (NILP (rfont_def)) | |
600 | break; | |
601 | if (! EQ (RFONT_DEF_FONT_DEF (rfont_def), font_def)) | |
602 | break; | |
603 | } | |
604 | continue; | |
605 | } | |
41ad6003 | 606 | |
374bf7e4 | 607 | rfont_def = AREF (vec, found_index); |
162f5458 | 608 | if (NILP (rfont_def)) |
374bf7e4 | 609 | { |
635c75b1 | 610 | if (i < 0) |
374bf7e4 KH |
611 | continue; |
612 | /* This is a sign of not to try the other fonts. */ | |
613 | return Qt; | |
614 | } | |
162f5458 KH |
615 | if (INTEGERP (RFONT_DEF_FACE (rfont_def)) |
616 | && XINT (RFONT_DEF_FACE (rfont_def)) < 0) | |
1d5d7200 KH |
617 | /* We couldn't open this font last time. */ |
618 | continue; | |
619 | ||
162f5458 | 620 | font_object = RFONT_DEF_OBJECT (rfont_def); |
581f7ac7 | 621 | if (NILP (font_object)) |
8aa07a8d | 622 | { |
162f5458 | 623 | font_def = RFONT_DEF_FONT_DEF (rfont_def); |
d67f7f1a | 624 | |
581f7ac7 KH |
625 | if (! face) |
626 | /* We have not yet opened the font. */ | |
627 | return Qnil; | |
162f5458 KH |
628 | /* Find a font best-matching with the spec without checking |
629 | the support of the character C. That checking is costly, | |
630 | and even without the checking, the found font supports C | |
631 | in high possibility. */ | |
581f7ac7 KH |
632 | font_entity = font_find_for_lface (f, face->lface, |
633 | FONT_DEF_SPEC (font_def), -1); | |
d67f7f1a | 634 | if (NILP (font_entity)) |
8b67c40a | 635 | { |
581f7ac7 | 636 | /* Record that no font matches the spec. */ |
162f5458 | 637 | RFONT_DEF_SET_FACE (rfont_def, -1); |
581f7ac7 | 638 | continue; |
d67f7f1a | 639 | } |
ca2b2cde KH |
640 | font_object = font_open_for_lface (f, font_entity, face->lface, |
641 | FONT_DEF_SPEC (font_def)); | |
581f7ac7 | 642 | if (NILP (font_object)) |
d67f7f1a | 643 | { |
162f5458 KH |
644 | /* Something strange happened, perhaps because of a |
645 | Font-backend problem. Too avoid crashing, record | |
646 | that this spec is unsable. It may be better to find | |
647 | another font of the same spec, but currently we don't | |
648 | have such an API. */ | |
649 | RFONT_DEF_SET_FACE (rfont_def, -1); | |
581f7ac7 | 650 | continue; |
8aa07a8d | 651 | } |
162f5458 | 652 | RFONT_DEF_SET_OBJECT (rfont_def, font_object); |
8aa07a8d | 653 | } |
eb152aa9 | 654 | |
581f7ac7 | 655 | if (font_has_char (f, font_object, c)) |
a71ccf3a | 656 | goto found; |
581f7ac7 | 657 | |
162f5458 KH |
658 | /* Find a font already opened, maching with the current spec, |
659 | and supporting C. */ | |
660 | font_def = RFONT_DEF_FONT_DEF (rfont_def); | |
374bf7e4 | 661 | for (; found_index + 1 < ASIZE (vec); found_index++) |
57e13af9 | 662 | { |
374bf7e4 | 663 | rfont_def = AREF (vec, found_index + 1); |
7d72bb82 | 664 | if (NILP (rfont_def)) |
374bf7e4 | 665 | break; |
162f5458 | 666 | if (! EQ (RFONT_DEF_FONT_DEF (rfont_def), font_def)) |
581f7ac7 | 667 | break; |
374bf7e4 | 668 | font_object = RFONT_DEF_OBJECT (rfont_def); |
69a8e484 | 669 | if (! NILP (font_object) && font_has_char (f, font_object, c)) |
374bf7e4 KH |
670 | { |
671 | found_index++; | |
672 | goto found; | |
673 | } | |
57e13af9 | 674 | } |
162f5458 KH |
675 | |
676 | /* Find a font-entity with the current spec and supporting C. */ | |
581f7ac7 KH |
677 | font_entity = font_find_for_lface (f, face->lface, |
678 | FONT_DEF_SPEC (font_def), c); | |
679 | if (! NILP (font_entity)) | |
1d5d7200 | 680 | { |
162f5458 KH |
681 | /* We found a font. Open it and insert a new element for |
682 | that font in VEC. */ | |
683 | Lisp_Object new_vec; | |
581f7ac7 | 684 | int j; |
1d5d7200 | 685 | |
581f7ac7 KH |
686 | font_object = font_open_for_lface (f, font_entity, face->lface, |
687 | Qnil); | |
162f5458 KH |
688 | if (NILP (font_object)) |
689 | continue; | |
581f7ac7 KH |
690 | RFONT_DEF_NEW (rfont_def, font_def); |
691 | RFONT_DEF_SET_OBJECT (rfont_def, font_object); | |
162f5458 | 692 | RFONT_DEF_SET_SCORE (rfont_def, RFONT_DEF_SCORE (rfont_def)); |
581f7ac7 | 693 | new_vec = Fmake_vector (make_number (ASIZE (vec) + 1), Qnil); |
374bf7e4 KH |
694 | found_index++; |
695 | for (j = 0; j < found_index; j++) | |
581f7ac7 KH |
696 | ASET (new_vec, j, AREF (vec, j)); |
697 | ASET (new_vec, j, rfont_def); | |
698 | for (j++; j < ASIZE (new_vec); j++) | |
699 | ASET (new_vec, j, AREF (vec, j - 1)); | |
162f5458 | 700 | XSETCDR (font_group, new_vec); |
a71ccf3a KH |
701 | vec = new_vec; |
702 | goto found; | |
1d5d7200 | 703 | } |
374bf7e4 KH |
704 | if (i >= 0) |
705 | i = found_index; | |
0d407d77 | 706 | } |
d67f7f1a | 707 | |
581f7ac7 | 708 | FONTSET_SET (fontset, make_number (c), make_number (0)); |
eaa0402c | 709 | return Qnil; |
a71ccf3a KH |
710 | |
711 | found: | |
712 | if (fallback && found_index > 0) | |
713 | { | |
714 | /* The order of fonts in the fallback font-group is not that | |
715 | important, and it is better to move the found font to the | |
716 | first of the group so that the next try will find it | |
717 | quickly. */ | |
718 | for (i = found_index; i > 0; i--) | |
719 | ASET (vec, i, AREF (vec, i - 1)); | |
720 | ASET (vec, 0, rfont_def); | |
721 | } | |
722 | return rfont_def; | |
1c82b4b3 | 723 | } |
0d407d77 | 724 | |
cc7b6145 | 725 | |
1c82b4b3 | 726 | static Lisp_Object |
971de7fb | 727 | fontset_font (Lisp_Object fontset, int c, struct face *face, int id) |
1c82b4b3 | 728 | { |
f084f942 | 729 | Lisp_Object rfont_def, default_rfont_def; |
1c82b4b3 | 730 | Lisp_Object base_fontset; |
cc7b6145 | 731 | |
41ad6003 | 732 | /* Try a font-group of FONTSET. */ |
b23bf85a | 733 | FONT_DEFERRED_LOG ("current fontset: font for", make_number (c), Qnil); |
1c82b4b3 | 734 | rfont_def = fontset_find_font (fontset, c, face, id, 0); |
eaa0402c KH |
735 | if (VECTORP (rfont_def)) |
736 | return rfont_def; | |
f084f942 KH |
737 | if (NILP (rfont_def)) |
738 | FONTSET_SET (fontset, make_number (c), make_number (0)); | |
41ad6003 KH |
739 | |
740 | /* Try a font-group of the default fontset. */ | |
741 | base_fontset = FONTSET_BASE (fontset); | |
742 | if (! EQ (base_fontset, Vdefault_fontset)) | |
743 | { | |
744 | if (NILP (FONTSET_DEFAULT (fontset))) | |
745 | FONTSET_DEFAULT (fontset) | |
746 | = make_fontset (FONTSET_FRAME (fontset), Qnil, Vdefault_fontset); | |
b23bf85a | 747 | FONT_DEFERRED_LOG ("default fontset: font for", make_number (c), Qnil); |
f084f942 KH |
748 | default_rfont_def |
749 | = fontset_find_font (FONTSET_DEFAULT (fontset), c, face, id, 0); | |
750 | if (VECTORP (default_rfont_def)) | |
751 | return default_rfont_def; | |
752 | if (NILP (default_rfont_def)) | |
753 | FONTSET_SET (FONTSET_DEFAULT (fontset), make_number (c), | |
754 | make_number (0)); | |
41ad6003 KH |
755 | } |
756 | ||
757 | /* Try a fallback font-group of FONTSET. */ | |
f084f942 KH |
758 | if (! EQ (rfont_def, Qt)) |
759 | { | |
760 | FONT_DEFERRED_LOG ("current fallback: font for", make_number (c), Qnil); | |
761 | rfont_def = fontset_find_font (fontset, c, face, id, 1); | |
762 | if (VECTORP (rfont_def)) | |
763 | return rfont_def; | |
764 | /* Remember that FONTSET has no font for C. */ | |
765 | FONTSET_SET (fontset, make_number (c), Qt); | |
766 | } | |
d67f7f1a | 767 | |
f084f942 KH |
768 | /* Try a fallback font-group of the default fontset. */ |
769 | if (! EQ (base_fontset, Vdefault_fontset) | |
770 | && ! EQ (default_rfont_def, Qt)) | |
41ad6003 | 771 | { |
b23bf85a | 772 | FONT_DEFERRED_LOG ("default fallback: font for", make_number (c), Qnil); |
41ad6003 KH |
773 | rfont_def = fontset_find_font (FONTSET_DEFAULT (fontset), c, face, id, 1); |
774 | if (VECTORP (rfont_def)) | |
775 | return rfont_def; | |
f084f942 KH |
776 | /* Remember that the default fontset has no font for C. */ |
777 | FONTSET_SET (FONTSET_DEFAULT (fontset), make_number (c), Qt); | |
41ad6003 KH |
778 | } |
779 | ||
41ad6003 | 780 | return Qnil; |
0d407d77 KH |
781 | } |
782 | ||
0d407d77 | 783 | /* Return a newly created fontset with NAME. If BASE is nil, make a |
06f76f0d | 784 | base fontset. Otherwise make a realized fontset whose base is |
0d407d77 KH |
785 | BASE. */ |
786 | ||
787 | static Lisp_Object | |
971de7fb | 788 | make_fontset (Lisp_Object frame, Lisp_Object name, Lisp_Object base) |
4ed46869 | 789 | { |
1337ac77 | 790 | Lisp_Object fontset; |
0d407d77 KH |
791 | int size = ASIZE (Vfontset_table); |
792 | int id = next_fontset_id; | |
0d407d77 KH |
793 | |
794 | /* Find a free slot in Vfontset_table. Usually, next_fontset_id is | |
795 | the next available fontset ID. So it is expected that this loop | |
796 | terminates quickly. In addition, as the last element of | |
fc8865fc | 797 | Vfontset_table is always nil, we don't have to check the range of |
0d407d77 KH |
798 | id. */ |
799 | while (!NILP (AREF (Vfontset_table, id))) id++; | |
800 | ||
801 | if (id + 1 == size) | |
63655c83 | 802 | Vfontset_table = larger_vector (Vfontset_table, size + 32, Qnil); |
4ed46869 | 803 | |
11d9bd93 | 804 | fontset = Fmake_char_table (Qfontset, Qnil); |
0d407d77 KH |
805 | |
806 | FONTSET_ID (fontset) = make_number (id); | |
06f76f0d KH |
807 | if (NILP (base)) |
808 | { | |
809 | FONTSET_NAME (fontset) = name; | |
810 | } | |
811 | else | |
812 | { | |
813 | FONTSET_NAME (fontset) = Qnil; | |
814 | FONTSET_FRAME (fontset) = frame; | |
815 | FONTSET_BASE (fontset) = base; | |
816 | } | |
0d407d77 | 817 | |
06f76f0d | 818 | ASET (Vfontset_table, id, fontset); |
0d407d77 KH |
819 | next_fontset_id = id + 1; |
820 | return fontset; | |
4ed46869 KH |
821 | } |
822 | ||
0d407d77 | 823 | \f |
1d5d7200 | 824 | /********** INTERFACES TO xfaces.c, xfns.c, and dispextern.h **********/ |
0d407d77 | 825 | |
1d5d7200 | 826 | /* Return the name of the fontset who has ID. */ |
0d407d77 KH |
827 | |
828 | Lisp_Object | |
971de7fb | 829 | fontset_name (int id) |
0d407d77 KH |
830 | { |
831 | Lisp_Object fontset; | |
06f76f0d | 832 | |
0d407d77 KH |
833 | fontset = FONTSET_FROM_ID (id); |
834 | return FONTSET_NAME (fontset); | |
835 | } | |
836 | ||
837 | ||
1d5d7200 | 838 | /* Return the ASCII font name of the fontset who has ID. */ |
0d407d77 KH |
839 | |
840 | Lisp_Object | |
971de7fb | 841 | fontset_ascii (int id) |
0d407d77 KH |
842 | { |
843 | Lisp_Object fontset, elt; | |
06f76f0d | 844 | |
0d407d77 KH |
845 | fontset= FONTSET_FROM_ID (id); |
846 | elt = FONTSET_ASCII (fontset); | |
8aa07a8d KH |
847 | if (CONSP (elt)) |
848 | elt = XCAR (elt); | |
1d5d7200 | 849 | return elt; |
0d407d77 KH |
850 | } |
851 | ||
9459b1e9 | 852 | void |
971de7fb | 853 | free_realized_fontset (FRAME_PTR f, Lisp_Object fontset) |
9459b1e9 | 854 | { |
9459b1e9 KH |
855 | Lisp_Object tail; |
856 | ||
857 | return; | |
858 | for (tail = FONTSET_OBJLIST (fontset); CONSP (tail); tail = XCDR (tail)) | |
859 | { | |
860 | xassert (FONT_OBJECT_P (XCAR (tail))); | |
861 | font_close_object (f, XCAR (tail)); | |
862 | } | |
863 | } | |
0d407d77 | 864 | |
06f76f0d KH |
865 | /* Free fontset of FACE defined on frame F. Called from |
866 | free_realized_face. */ | |
0d407d77 | 867 | |
4ed46869 | 868 | void |
971de7fb | 869 | free_face_fontset (FRAME_PTR f, struct face *face) |
4ed46869 | 870 | { |
452a78e0 KH |
871 | Lisp_Object fontset; |
872 | ||
ff7a2223 | 873 | fontset = FONTSET_FROM_ID (face->fontset); |
581f7ac7 KH |
874 | if (NILP (fontset)) |
875 | return; | |
876 | xassert (! BASE_FONTSET_P (fontset)); | |
452a78e0 | 877 | xassert (f == XFRAME (FONTSET_FRAME (fontset))); |
9459b1e9 | 878 | free_realized_fontset (f, fontset); |
1d5d7200 | 879 | ASET (Vfontset_table, face->fontset, Qnil); |
06f76f0d KH |
880 | if (face->fontset < next_fontset_id) |
881 | next_fontset_id = face->fontset; | |
eb36588a | 882 | if (! NILP (FONTSET_DEFAULT (fontset))) |
452a78e0 | 883 | { |
e1a14cdc | 884 | int id = XINT (FONTSET_ID (FONTSET_DEFAULT (fontset))); |
eb152aa9 | 885 | |
452a78e0 KH |
886 | fontset = AREF (Vfontset_table, id); |
887 | xassert (!NILP (fontset) && ! BASE_FONTSET_P (fontset)); | |
888 | xassert (f == XFRAME (FONTSET_FRAME (fontset))); | |
9459b1e9 | 889 | free_realized_fontset (f, fontset); |
452a78e0 KH |
890 | ASET (Vfontset_table, id, Qnil); |
891 | if (id < next_fontset_id) | |
892 | next_fontset_id = face->fontset; | |
893 | } | |
581f7ac7 | 894 | face->fontset = -1; |
0d407d77 | 895 | } |
18998710 | 896 | |
0d407d77 | 897 | |
e0f24100 | 898 | /* Return 1 if FACE is suitable for displaying character C. |
0d407d77 | 899 | Otherwise return 0. Called from the macro FACE_SUITABLE_FOR_CHAR_P |
06f76f0d | 900 | when C is not an ASCII character. */ |
0d407d77 KH |
901 | |
902 | int | |
971de7fb | 903 | face_suitable_for_char_p (struct face *face, int c) |
0d407d77 | 904 | { |
7e1a1cd9 | 905 | Lisp_Object fontset, rfont_def; |
0d407d77 | 906 | |
0d407d77 | 907 | fontset = FONTSET_FROM_ID (face->fontset); |
7e1a1cd9 KH |
908 | rfont_def = fontset_font (fontset, c, NULL, -1); |
909 | return (VECTORP (rfont_def) | |
581f7ac7 KH |
910 | && INTEGERP (RFONT_DEF_FACE (rfont_def)) |
911 | && face->id == XINT (RFONT_DEF_FACE (rfont_def))); | |
0d407d77 KH |
912 | } |
913 | ||
914 | ||
915 | /* Return ID of face suitable for displaying character C on frame F. | |
1d5d7200 KH |
916 | FACE must be reazlied for ASCII characters in advance. Called from |
917 | the macro FACE_FOR_CHAR. */ | |
0d407d77 KH |
918 | |
919 | int | |
971de7fb | 920 | face_for_char (FRAME_PTR f, struct face *face, int c, int pos, Lisp_Object object) |
0d407d77 | 921 | { |
303d5190 | 922 | Lisp_Object fontset, rfont_def, charset; |
7e1a1cd9 | 923 | int face_id; |
6bad8007 | 924 | int id; |
1d5d7200 | 925 | |
ea217c11 KH |
926 | /* If face->fontset is negative (that happens when no font is found |
927 | for face), just return face->ascii_face because we can't do | |
928 | anything. Perhaps, we should fix the callers to assure | |
929 | that face->fontset is always valid. */ | |
930 | if (ASCII_CHAR_P (c) || face->fontset < 0) | |
1d5d7200 | 931 | return face->ascii_face->id; |
0d407d77 KH |
932 | |
933 | xassert (fontset_id_valid_p (face->fontset)); | |
934 | fontset = FONTSET_FROM_ID (face->fontset); | |
935 | xassert (!BASE_FONTSET_P (fontset)); | |
41ad6003 | 936 | |
6bad8007 | 937 | if (pos < 0) |
303d5190 KH |
938 | { |
939 | id = -1; | |
940 | charset = Qnil; | |
941 | } | |
6bad8007 KH |
942 | else |
943 | { | |
944 | charset = Fget_char_property (make_number (pos), Qcharset, object); | |
b1bde622 | 945 | if (CHARSETP (charset)) |
28e2436a KH |
946 | { |
947 | Lisp_Object val; | |
948 | ||
a124bbb6 | 949 | val = assq_no_quit (charset, Vfont_encoding_charset_alist); |
28e2436a KH |
950 | if (CONSP (val) && CHARSETP (XCDR (val))) |
951 | charset = XCDR (val); | |
952 | id = XINT (CHARSET_SYMBOL_ID (charset)); | |
953 | } | |
b1bde622 KH |
954 | else |
955 | id = -1; | |
6bad8007 | 956 | } |
b59e66b3 | 957 | |
7e1a1cd9 KH |
958 | rfont_def = fontset_font (fontset, c, face, id); |
959 | if (VECTORP (rfont_def)) | |
960 | { | |
581f7ac7 KH |
961 | if (INTEGERP (RFONT_DEF_FACE (rfont_def))) |
962 | face_id = XINT (RFONT_DEF_FACE (rfont_def)); | |
8aa07a8d | 963 | else |
7e1a1cd9 | 964 | { |
581f7ac7 | 965 | Lisp_Object font_object; |
7e1a1cd9 | 966 | |
581f7ac7 KH |
967 | font_object = RFONT_DEF_OBJECT (rfont_def); |
968 | face_id = face_for_font (f, font_object, face); | |
969 | RFONT_DEF_SET_FACE (rfont_def, face_id); | |
7e1a1cd9 | 970 | } |
7e1a1cd9 | 971 | } |
581f7ac7 | 972 | else |
7e1a1cd9 | 973 | { |
581f7ac7 KH |
974 | if (INTEGERP (FONTSET_NOFONT_FACE (fontset))) |
975 | face_id = XINT (FONTSET_NOFONT_FACE (fontset)); | |
976 | else | |
977 | { | |
978 | face_id = face_for_font (f, Qnil, face); | |
979 | FONTSET_NOFONT_FACE (fontset) = make_number (face_id); | |
980 | } | |
7e1a1cd9 | 981 | } |
581f7ac7 KH |
982 | xassert (face_id >= 0); |
983 | return face_id; | |
0d407d77 KH |
984 | } |
985 | ||
986 | ||
514cf218 | 987 | Lisp_Object |
971de7fb | 988 | font_for_char (struct face *face, int c, int pos, Lisp_Object object) |
514cf218 KH |
989 | { |
990 | Lisp_Object fontset, rfont_def, charset; | |
514cf218 KH |
991 | int id; |
992 | ||
993 | if (ASCII_CHAR_P (c)) | |
994 | { | |
995 | Lisp_Object font_object; | |
996 | ||
997 | XSETFONT (font_object, face->ascii_face->font); | |
998 | return font_object; | |
999 | } | |
1000 | ||
1001 | xassert (fontset_id_valid_p (face->fontset)); | |
1002 | fontset = FONTSET_FROM_ID (face->fontset); | |
1003 | xassert (!BASE_FONTSET_P (fontset)); | |
1004 | if (pos < 0) | |
1005 | { | |
1006 | id = -1; | |
1007 | charset = Qnil; | |
1008 | } | |
1009 | else | |
1010 | { | |
1011 | charset = Fget_char_property (make_number (pos), Qcharset, object); | |
b1bde622 | 1012 | if (CHARSETP (charset)) |
514cf218 KH |
1013 | { |
1014 | Lisp_Object val; | |
1015 | ||
9fe78804 | 1016 | val = assq_no_quit (charset, Vfont_encoding_charset_alist); |
514cf218 KH |
1017 | if (CONSP (val) && CHARSETP (XCDR (val))) |
1018 | charset = XCDR (val); | |
1019 | id = XINT (CHARSET_SYMBOL_ID (charset)); | |
1020 | } | |
b1bde622 KH |
1021 | else |
1022 | id = -1; | |
514cf218 KH |
1023 | } |
1024 | ||
514cf218 KH |
1025 | rfont_def = fontset_font (fontset, c, face, id); |
1026 | return (VECTORP (rfont_def) | |
1027 | ? RFONT_DEF_OBJECT (rfont_def) | |
1028 | : Qnil); | |
1029 | } | |
1030 | ||
1031 | ||
0d407d77 KH |
1032 | /* Make a realized fontset for ASCII face FACE on frame F from the |
1033 | base fontset BASE_FONTSET_ID. If BASE_FONTSET_ID is -1, use the | |
1034 | default fontset as the base. Value is the id of the new fontset. | |
1035 | Called from realize_x_face. */ | |
1036 | ||
1037 | int | |
971de7fb | 1038 | make_fontset_for_ascii_face (FRAME_PTR f, int base_fontset_id, struct face *face) |
0d407d77 | 1039 | { |
1337ac77 | 1040 | Lisp_Object base_fontset, fontset, frame; |
0d407d77 KH |
1041 | |
1042 | XSETFRAME (frame, f); | |
1043 | if (base_fontset_id >= 0) | |
1044 | { | |
1045 | base_fontset = FONTSET_FROM_ID (base_fontset_id); | |
1046 | if (!BASE_FONTSET_P (base_fontset)) | |
1047 | base_fontset = FONTSET_BASE (base_fontset); | |
1d5d7200 KH |
1048 | if (! BASE_FONTSET_P (base_fontset)) |
1049 | abort (); | |
4ed46869 | 1050 | } |
0d407d77 KH |
1051 | else |
1052 | base_fontset = Vdefault_fontset; | |
1053 | ||
1054 | fontset = make_fontset (frame, Qnil, base_fontset); | |
f3231837 | 1055 | return XINT (FONTSET_ID (fontset)); |
0d407d77 KH |
1056 | } |
1057 | ||
0d407d77 | 1058 | \f |
1d5d7200 | 1059 | |
4ed46869 KH |
1060 | /* Cache data used by fontset_pattern_regexp. The car part is a |
1061 | pattern string containing at least one wild card, the cdr part is | |
1062 | the corresponding regular expression. */ | |
1063 | static Lisp_Object Vcached_fontset_data; | |
1064 | ||
dbf46ba6 | 1065 | #define CACHED_FONTSET_NAME ((char *) SDATA (XCAR (Vcached_fontset_data))) |
7539e11f | 1066 | #define CACHED_FONTSET_REGEX (XCDR (Vcached_fontset_data)) |
4ed46869 KH |
1067 | |
1068 | /* If fontset name PATTERN contains any wild card, return regular | |
1069 | expression corresponding to PATTERN. */ | |
1070 | ||
0d407d77 | 1071 | static Lisp_Object |
971de7fb | 1072 | fontset_pattern_regexp (Lisp_Object pattern) |
4ed46869 | 1073 | { |
8966b757 AS |
1074 | if (!strchr ((char *) SDATA (pattern), '*') |
1075 | && !strchr ((char *) SDATA (pattern), '?')) | |
4ed46869 | 1076 | /* PATTERN does not contain any wild cards. */ |
1c283e35 | 1077 | return Qnil; |
4ed46869 KH |
1078 | |
1079 | if (!CONSP (Vcached_fontset_data) | |
dbf46ba6 | 1080 | || strcmp ((char *) SDATA (pattern), CACHED_FONTSET_NAME)) |
4ed46869 KH |
1081 | { |
1082 | /* We must at first update the cached data. */ | |
6cc06608 | 1083 | unsigned char *regex, *p0, *p1; |
821bc4db | 1084 | int ndashes = 0, nstars = 0, nescs = 0; |
6cc06608 | 1085 | |
fc1062f5 KH |
1086 | for (p0 = SDATA (pattern); *p0; p0++) |
1087 | { | |
1088 | if (*p0 == '-') | |
1089 | ndashes++; | |
a653f812 | 1090 | else if (*p0 == '*') |
fc1062f5 | 1091 | nstars++; |
821bc4db KH |
1092 | else if (*p0 == '[' |
1093 | || *p0 == '.' || *p0 == '\\' | |
8510724d | 1094 | || *p0 == '+' || *p0 == '^' |
821bc4db KH |
1095 | || *p0 == '$') |
1096 | nescs++; | |
fc1062f5 KH |
1097 | } |
1098 | ||
1099 | /* If PATTERN is not full XLFD we conert "*" to ".*". Otherwise | |
1100 | we convert "*" to "[^-]*" which is much faster in regular | |
1101 | expression matching. */ | |
1102 | if (ndashes < 14) | |
821bc4db | 1103 | p1 = regex = (unsigned char *) alloca (SBYTES (pattern) + 2 * nstars + 2 * nescs + 1); |
fc1062f5 | 1104 | else |
821bc4db | 1105 | p1 = regex = (unsigned char *) alloca (SBYTES (pattern) + 5 * nstars + 2 * nescs + 1); |
4ed46869 | 1106 | |
1c283e35 | 1107 | *p1++ = '^'; |
6cc06608 | 1108 | for (p0 = SDATA (pattern); *p0; p0++) |
4ed46869 | 1109 | { |
a653f812 | 1110 | if (*p0 == '*') |
4ed46869 | 1111 | { |
fc1062f5 KH |
1112 | if (ndashes < 14) |
1113 | *p1++ = '.'; | |
1114 | else | |
1115 | *p1++ = '[', *p1++ = '^', *p1++ = '-', *p1++ = ']'; | |
1c283e35 | 1116 | *p1++ = '*'; |
4ed46869 | 1117 | } |
1c283e35 | 1118 | else if (*p0 == '?') |
d96d677d | 1119 | *p1++ = '.'; |
821bc4db KH |
1120 | else if (*p0 == '[' |
1121 | || *p0 == '.' || *p0 == '\\' | |
8510724d | 1122 | || *p0 == '+' || *p0 == '^' |
821bc4db KH |
1123 | || *p0 == '$') |
1124 | *p1++ = '\\', *p1++ = *p0; | |
1c283e35 KH |
1125 | else |
1126 | *p1++ = *p0; | |
4ed46869 KH |
1127 | } |
1128 | *p1++ = '$'; | |
1129 | *p1++ = 0; | |
1130 | ||
dbf46ba6 KH |
1131 | Vcached_fontset_data = Fcons (build_string ((char *) SDATA (pattern)), |
1132 | build_string ((char *) regex)); | |
4ed46869 KH |
1133 | } |
1134 | ||
1135 | return CACHED_FONTSET_REGEX; | |
1136 | } | |
1137 | ||
0d407d77 | 1138 | /* Return ID of the base fontset named NAME. If there's no such |
a653f812 KH |
1139 | fontset, return -1. NAME_PATTERN specifies how to treat NAME as this: |
1140 | 0: pattern containing '*' and '?' as wildcards | |
1141 | 1: regular expression | |
1142 | 2: literal fontset name | |
1143 | */ | |
0d407d77 KH |
1144 | |
1145 | int | |
971de7fb | 1146 | fs_query_fontset (Lisp_Object name, int name_pattern) |
0d407d77 | 1147 | { |
1337ac77 | 1148 | Lisp_Object tem; |
0d407d77 KH |
1149 | int i; |
1150 | ||
1151 | name = Fdowncase (name); | |
a653f812 | 1152 | if (name_pattern != 1) |
0d407d77 KH |
1153 | { |
1154 | tem = Frassoc (name, Vfontset_alias_alist); | |
6bad8007 KH |
1155 | if (NILP (tem)) |
1156 | tem = Fassoc (name, Vfontset_alias_alist); | |
0d407d77 KH |
1157 | if (CONSP (tem) && STRINGP (XCAR (tem))) |
1158 | name = XCAR (tem); | |
a653f812 | 1159 | else if (name_pattern == 0) |
0d407d77 KH |
1160 | { |
1161 | tem = fontset_pattern_regexp (name); | |
1162 | if (STRINGP (tem)) | |
1163 | { | |
1164 | name = tem; | |
a653f812 | 1165 | name_pattern = 1; |
0d407d77 KH |
1166 | } |
1167 | } | |
1168 | } | |
1169 | ||
1170 | for (i = 0; i < ASIZE (Vfontset_table); i++) | |
1171 | { | |
6e1b0d8c | 1172 | Lisp_Object fontset, this_name; |
0d407d77 KH |
1173 | |
1174 | fontset = FONTSET_FROM_ID (i); | |
1175 | if (NILP (fontset) | |
1176 | || !BASE_FONTSET_P (fontset)) | |
1177 | continue; | |
1178 | ||
6e1b0d8c | 1179 | this_name = FONTSET_NAME (fontset); |
a653f812 | 1180 | if (name_pattern == 1 |
581f7ac7 | 1181 | ? fast_string_match_ignore_case (name, this_name) >= 0 |
05131107 | 1182 | : !xstrcasecmp (SDATA (name), SDATA (this_name))) |
0d407d77 KH |
1183 | return i; |
1184 | } | |
1185 | return -1; | |
1186 | } | |
1187 | ||
1188 | ||
727fb790 | 1189 | DEFUN ("query-fontset", Fquery_fontset, Squery_fontset, 1, 2, 0, |
335c5470 PJ |
1190 | doc: /* Return the name of a fontset that matches PATTERN. |
1191 | The value is nil if there is no matching fontset. | |
1192 | PATTERN can contain `*' or `?' as a wildcard | |
1193 | just as X font name matching algorithm allows. | |
1194 | If REGEXPP is non-nil, PATTERN is a regular expression. */) | |
5842a27b | 1195 | (Lisp_Object pattern, Lisp_Object regexpp) |
4ed46869 | 1196 | { |
0d407d77 KH |
1197 | Lisp_Object fontset; |
1198 | int id; | |
4ed46869 KH |
1199 | |
1200 | (*check_window_system_func) (); | |
1201 | ||
b7826503 | 1202 | CHECK_STRING (pattern); |
4ed46869 | 1203 | |
d5db4077 | 1204 | if (SCHARS (pattern) == 0) |
4ed46869 KH |
1205 | return Qnil; |
1206 | ||
0d407d77 KH |
1207 | id = fs_query_fontset (pattern, !NILP (regexpp)); |
1208 | if (id < 0) | |
1209 | return Qnil; | |
4ed46869 | 1210 | |
0d407d77 KH |
1211 | fontset = FONTSET_FROM_ID (id); |
1212 | return FONTSET_NAME (fontset); | |
4ed46869 KH |
1213 | } |
1214 | ||
06f76f0d | 1215 | /* Return a list of base fontset names matching PATTERN on frame F. */ |
4ed46869 KH |
1216 | |
1217 | Lisp_Object | |
971de7fb | 1218 | list_fontsets (FRAME_PTR f, Lisp_Object pattern, int size) |
4ed46869 | 1219 | { |
1337ac77 | 1220 | Lisp_Object frame, regexp, val; |
0d407d77 | 1221 | int id; |
4ed46869 | 1222 | |
0d407d77 | 1223 | XSETFRAME (frame, f); |
4ed46869 | 1224 | |
0d407d77 | 1225 | regexp = fontset_pattern_regexp (pattern); |
4ed46869 | 1226 | val = Qnil; |
4ed46869 | 1227 | |
0d407d77 KH |
1228 | for (id = 0; id < ASIZE (Vfontset_table); id++) |
1229 | { | |
6e1b0d8c | 1230 | Lisp_Object fontset, name; |
0d407d77 KH |
1231 | |
1232 | fontset = FONTSET_FROM_ID (id); | |
1233 | if (NILP (fontset) | |
1234 | || !BASE_FONTSET_P (fontset) | |
1235 | || !EQ (frame, FONTSET_FRAME (fontset))) | |
1236 | continue; | |
6e1b0d8c | 1237 | name = FONTSET_NAME (fontset); |
0d407d77 | 1238 | |
1d5d7200 | 1239 | if (STRINGP (regexp) |
6e1b0d8c | 1240 | ? (fast_string_match (regexp, name) < 0) |
dbf46ba6 | 1241 | : strcmp ((char *) SDATA (pattern), (char *) SDATA (name))) |
0d407d77 KH |
1242 | continue; |
1243 | ||
0d407d77 | 1244 | val = Fcons (Fcopy_sequence (FONTSET_NAME (fontset)), val); |
4ed46869 KH |
1245 | } |
1246 | ||
1247 | return val; | |
1248 | } | |
1249 | ||
4ed46869 | 1250 | |
8f924df7 | 1251 | /* Free all realized fontsets whose base fontset is BASE. */ |
4ed46869 | 1252 | |
06f76f0d | 1253 | static void |
971de7fb | 1254 | free_realized_fontsets (Lisp_Object base) |
06f76f0d KH |
1255 | { |
1256 | int id; | |
4ed46869 | 1257 | |
2f034212 | 1258 | #if 0 |
27e20b2f KH |
1259 | /* For the moment, this doesn't work because free_realized_face |
1260 | doesn't remove FACE from a cache. Until we find a solution, we | |
1261 | suppress this code, and simply use Fclear_face_cache even though | |
1262 | that is not efficient. */ | |
06f76f0d KH |
1263 | BLOCK_INPUT; |
1264 | for (id = 0; id < ASIZE (Vfontset_table); id++) | |
4ed46869 | 1265 | { |
06f76f0d | 1266 | Lisp_Object this = AREF (Vfontset_table, id); |
0d407d77 | 1267 | |
06f76f0d | 1268 | if (EQ (FONTSET_BASE (this), base)) |
0d407d77 | 1269 | { |
06f76f0d | 1270 | Lisp_Object tail; |
4ed46869 | 1271 | |
06f76f0d KH |
1272 | for (tail = FONTSET_FACE_ALIST (this); CONSP (tail); |
1273 | tail = XCDR (tail)) | |
1274 | { | |
1275 | FRAME_PTR f = XFRAME (FONTSET_FRAME (this)); | |
1276 | int face_id = XINT (XCDR (XCAR (tail))); | |
1277 | struct face *face = FACE_FROM_ID (f, face_id); | |
4ed46869 | 1278 | |
06f76f0d KH |
1279 | /* Face THIS itself is also freed by the following call. */ |
1280 | free_realized_face (f, face); | |
1281 | } | |
1282 | } | |
0d407d77 | 1283 | } |
06f76f0d | 1284 | UNBLOCK_INPUT; |
27e20b2f | 1285 | #else /* not 0 */ |
2f034212 KH |
1286 | /* But, we don't have to call Fclear_face_cache if no fontset has |
1287 | been realized from BASE. */ | |
1288 | for (id = 0; id < ASIZE (Vfontset_table); id++) | |
1289 | { | |
1290 | Lisp_Object this = AREF (Vfontset_table, id); | |
1291 | ||
985773c9 | 1292 | if (CHAR_TABLE_P (this) && EQ (FONTSET_BASE (this), base)) |
2f034212 KH |
1293 | { |
1294 | Fclear_face_cache (Qt); | |
1295 | break; | |
1296 | } | |
1297 | } | |
27e20b2f | 1298 | #endif /* not 0 */ |
0d407d77 | 1299 | } |
4ed46869 | 1300 | |
4ed46869 | 1301 | |
0d407d77 KH |
1302 | /* Check validity of NAME as a fontset name and return the |
1303 | corresponding fontset. If not valid, signal an error. | |
a3d16f39 KH |
1304 | |
1305 | If NAME is t, return Vdefault_fontset. If NAME is nil, return the | |
1306 | fontset of *FRAME. | |
1307 | ||
1308 | Set *FRAME to the actual frame. */ | |
0d407d77 KH |
1309 | |
1310 | static Lisp_Object | |
971de7fb | 1311 | check_fontset_name (Lisp_Object name, Lisp_Object *frame) |
0d407d77 KH |
1312 | { |
1313 | int id; | |
1314 | ||
a3d16f39 KH |
1315 | if (NILP (*frame)) |
1316 | *frame = selected_frame; | |
1317 | CHECK_LIVE_FRAME (*frame); | |
1318 | ||
0d407d77 KH |
1319 | if (EQ (name, Qt)) |
1320 | return Vdefault_fontset; | |
a3d16f39 KH |
1321 | if (NILP (name)) |
1322 | { | |
1323 | id = FRAME_FONTSET (XFRAME (*frame)); | |
1324 | } | |
1325 | else | |
1326 | { | |
1327 | CHECK_STRING (name); | |
1328 | /* First try NAME as literal. */ | |
1329 | id = fs_query_fontset (name, 2); | |
1330 | if (id < 0) | |
1331 | /* For backward compatibility, try again NAME as pattern. */ | |
1332 | id = fs_query_fontset (name, 0); | |
1333 | if (id < 0) | |
1334 | error ("Fontset `%s' does not exist", SDATA (name)); | |
1335 | } | |
0d407d77 KH |
1336 | return FONTSET_FROM_ID (id); |
1337 | } | |
4ed46869 | 1338 | |
1d5d7200 | 1339 | static void |
971de7fb | 1340 | accumulate_script_ranges (Lisp_Object arg, Lisp_Object range, Lisp_Object val) |
1d5d7200 KH |
1341 | { |
1342 | if (EQ (XCAR (arg), val)) | |
1343 | { | |
1344 | if (CONSP (range)) | |
1345 | XSETCDR (arg, Fcons (Fcons (XCAR (range), XCDR (range)), XCDR (arg))); | |
1346 | else | |
1347 | XSETCDR (arg, Fcons (Fcons (range, range), XCDR (arg))); | |
1348 | } | |
1349 | } | |
1350 | ||
1351 | ||
a3d16f39 KH |
1352 | /* Callback function for map_charset_chars in Fset_fontset_font. |
1353 | ARG is a vector [ FONTSET FONT_DEF ADD ASCII SCRIPT_RANGE_LIST ]. | |
fb78e2ed | 1354 | |
a3d16f39 KH |
1355 | In FONTSET, set FONT_DEF in a fashion specified by ADD for |
1356 | characters in RANGE and ranges in SCRIPT_RANGE_LIST before RANGE. | |
1357 | The consumed ranges are poped up from SCRIPT_RANGE_LIST, and the | |
1358 | new SCRIPT_RANGE_LIST is stored in ARG. | |
1359 | ||
1360 | If ASCII is nil, don't set FONT_DEF for ASCII characters. It is | |
1361 | assured that SCRIPT_RANGE_LIST doesn't contain ASCII in that | |
1362 | case. */ | |
fb78e2ed | 1363 | |
2449d4d0 | 1364 | static void |
971de7fb | 1365 | set_fontset_font (Lisp_Object arg, Lisp_Object range) |
2449d4d0 | 1366 | { |
a3d16f39 KH |
1367 | Lisp_Object fontset, font_def, add, ascii, script_range_list; |
1368 | int from = XINT (XCAR (range)), to = XINT (XCDR (range)); | |
2449d4d0 | 1369 | |
a3d16f39 KH |
1370 | fontset = AREF (arg, 0); |
1371 | font_def = AREF (arg, 1); | |
1372 | add = AREF (arg, 2); | |
1373 | ascii = AREF (arg, 3); | |
1374 | script_range_list = AREF (arg, 4); | |
fb78e2ed | 1375 | |
a3d16f39 KH |
1376 | if (NILP (ascii) && from < 0x80) |
1377 | { | |
1378 | if (to < 0x80) | |
fb78e2ed | 1379 | return; |
a3d16f39 KH |
1380 | from = 0x80; |
1381 | range = Fcons (make_number (0x80), XCDR (range)); | |
1382 | } | |
1383 | ||
1384 | #define SCRIPT_FROM XINT (XCAR (XCAR (script_range_list))) | |
1385 | #define SCRIPT_TO XINT (XCDR (XCAR (script_range_list))) | |
1386 | #define POP_SCRIPT_RANGE() script_range_list = XCDR (script_range_list) | |
1387 | ||
1388 | for (; CONSP (script_range_list) && SCRIPT_TO < from; POP_SCRIPT_RANGE ()) | |
1389 | FONTSET_ADD (fontset, XCAR (script_range_list), font_def, add); | |
1390 | if (CONSP (script_range_list)) | |
1391 | { | |
1392 | if (SCRIPT_FROM < from) | |
1393 | range = Fcons (make_number (SCRIPT_FROM), XCDR (range)); | |
1394 | while (CONSP (script_range_list) && SCRIPT_TO <= to) | |
1395 | POP_SCRIPT_RANGE (); | |
1396 | if (CONSP (script_range_list) && SCRIPT_FROM <= to) | |
1397 | XSETCAR (XCAR (script_range_list), make_number (to + 1)); | |
fb78e2ed | 1398 | } |
a3d16f39 KH |
1399 | |
1400 | FONTSET_ADD (fontset, range, font_def, add); | |
1401 | ASET (arg, 4, script_range_list); | |
2449d4d0 KH |
1402 | } |
1403 | ||
f57e2426 | 1404 | static void update_auto_fontset_alist (Lisp_Object, Lisp_Object); |
d6490542 | 1405 | |
d6aaac9e | 1406 | |
1d5d7200 | 1407 | DEFUN ("set-fontset-font", Fset_fontset_font, Sset_fontset_font, 3, 5, 0, |
8f924df7 | 1408 | doc: /* |
eb36588a | 1409 | Modify fontset NAME to use FONT-SPEC for TARGET characters. |
335c5470 | 1410 | |
a3d16f39 KH |
1411 | NAME is a fontset name string, nil for the fontset of FRAME, or t for |
1412 | the default fontset. | |
1413 | ||
eb36588a KH |
1414 | TARGET may be a cons; (FROM . TO), where FROM and TO are characters. |
1415 | In that case, use FONT-SPEC for all characters in the range FROM and | |
1416 | TO (inclusive). | |
06f76f0d | 1417 | |
eb36588a KH |
1418 | TARGET may be a script name symbol. In that case, use FONT-SPEC for |
1419 | all characters that belong to the script. | |
06f76f0d | 1420 | |
eb36588a | 1421 | TARGET may be a charset. In that case, use FONT-SPEC for all |
95318a38 | 1422 | characters in the charset. |
1d5d7200 | 1423 | |
eb36588a KH |
1424 | TARGET may be nil. In that case, use FONT-SPEC for any characters for |
1425 | that no FONT-SPEC is specified. | |
1426 | ||
0fdf26e6 | 1427 | FONT-SPEC may one of these: |
581f7ac7 | 1428 | * A font-spec object made by the function `font-spec' (which see). |
3dcd48dd | 1429 | * A cons (FAMILY . REGISTRY), where FAMILY is a font family name and |
581f7ac7 KH |
1430 | REGISTRY is a font registry name. FAMILY may contain foundry |
1431 | name, and REGISTRY may contain encoding name. | |
00c4da0f | 1432 | * A font name string. |
eaa0402c | 1433 | * nil, which explicitly specifies that there's no font for TARGET. |
1d5d7200 | 1434 | |
a3d16f39 KH |
1435 | Optional 4th argument FRAME is a frame or nil for the selected frame |
1436 | that is concerned in the case that NAME is nil. | |
1d5d7200 KH |
1437 | |
1438 | Optional 5th argument ADD, if non-nil, specifies how to add FONT-SPEC | |
eb36588a | 1439 | to the font specifications for TARGET previously set. If it is |
1d5d7200 KH |
1440 | `prepend', FONT-SPEC is prepended. If it is `append', FONT-SPEC is |
1441 | appended. By default, FONT-SPEC overrides the previous settings. */) | |
5842a27b | 1442 | (Lisp_Object name, Lisp_Object target, Lisp_Object font_spec, Lisp_Object frame, Lisp_Object add) |
0d407d77 | 1443 | { |
06f76f0d | 1444 | Lisp_Object fontset; |
9683749a | 1445 | Lisp_Object font_def, registry, family; |
1d5d7200 | 1446 | Lisp_Object range_list; |
fb78e2ed | 1447 | struct charset *charset = NULL; |
d6490542 KH |
1448 | Lisp_Object fontname; |
1449 | int ascii_changed = 0; | |
0d407d77 | 1450 | |
a3d16f39 | 1451 | fontset = check_fontset_name (name, &frame); |
1d5d7200 | 1452 | |
d6490542 | 1453 | fontname = Qnil; |
581f7ac7 | 1454 | if (CONSP (font_spec)) |
0d407d77 | 1455 | { |
581f7ac7 | 1456 | Lisp_Object spec = Ffont_spec (0, NULL); |
1d5d7200 | 1457 | |
581f7ac7 KH |
1458 | font_parse_family_registry (XCAR (font_spec), XCDR (font_spec), spec); |
1459 | font_spec = spec; | |
d6490542 | 1460 | fontname = Ffont_xlfd_name (font_spec, Qnil); |
0890801b | 1461 | } |
d67f7f1a | 1462 | else if (STRINGP (font_spec)) |
4ed46869 | 1463 | { |
ea0162a6 KH |
1464 | Lisp_Object args[2]; |
1465 | ||
d6490542 | 1466 | fontname = font_spec; |
ea0162a6 KH |
1467 | args[0] = QCname; |
1468 | args[1] = font_spec; | |
1469 | font_spec = Ffont_spec (2, args); | |
0d407d77 | 1470 | } |
d6490542 KH |
1471 | else if (FONT_SPEC_P (font_spec)) |
1472 | fontname = Ffont_xlfd_name (font_spec, Qnil); | |
1473 | else if (! NILP (font_spec)) | |
581f7ac7 | 1474 | Fsignal (Qfont, list2 (build_string ("Invalid font-spec"), font_spec)); |
1d5d7200 | 1475 | |
d67f7f1a | 1476 | if (! NILP (font_spec)) |
57e13af9 | 1477 | { |
581f7ac7 KH |
1478 | Lisp_Object encoding, repertory; |
1479 | ||
d67f7f1a | 1480 | family = AREF (font_spec, FONT_FAMILY_INDEX); |
581f7ac7 | 1481 | if (! NILP (family) ) |
d67f7f1a KH |
1482 | family = SYMBOL_NAME (family); |
1483 | registry = AREF (font_spec, FONT_REGISTRY_INDEX); | |
581f7ac7 KH |
1484 | if (! NILP (registry)) |
1485 | registry = Fdowncase (SYMBOL_NAME (registry)); | |
1486 | encoding = find_font_encoding (concat3 (family, build_string ("-"), | |
1487 | registry)); | |
d67f7f1a KH |
1488 | if (NILP (encoding)) |
1489 | encoding = Qascii; | |
1490 | ||
1491 | if (SYMBOLP (encoding)) | |
1492 | { | |
1493 | CHECK_CHARSET (encoding); | |
1494 | encoding = repertory = CHARSET_SYMBOL_ID (encoding); | |
1495 | } | |
1496 | else | |
57e13af9 | 1497 | { |
d67f7f1a KH |
1498 | repertory = XCDR (encoding); |
1499 | encoding = XCAR (encoding); | |
1500 | CHECK_CHARSET (encoding); | |
1501 | encoding = CHARSET_SYMBOL_ID (encoding); | |
1502 | if (! NILP (repertory) && SYMBOLP (repertory)) | |
1503 | { | |
1504 | CHECK_CHARSET (repertory); | |
1505 | repertory = CHARSET_SYMBOL_ID (repertory); | |
1506 | } | |
57e13af9 | 1507 | } |
581f7ac7 | 1508 | FONT_DEF_NEW (font_def, font_spec, encoding, repertory); |
0d407d77 | 1509 | } |
d67f7f1a KH |
1510 | else |
1511 | font_def = Qnil; | |
4ed46869 | 1512 | |
eb36588a | 1513 | if (CHARACTERP (target)) |
d6490542 KH |
1514 | { |
1515 | if (XFASTINT (target) < 0x80) | |
d7a39b51 | 1516 | error ("Can't set a font for partial ASCII range"); |
d6490542 KH |
1517 | range_list = Fcons (Fcons (target, target), Qnil); |
1518 | } | |
eb36588a | 1519 | else if (CONSP (target)) |
0d407d77 | 1520 | { |
06f76f0d KH |
1521 | Lisp_Object from, to; |
1522 | ||
eb36588a KH |
1523 | from = Fcar (target); |
1524 | to = Fcdr (target); | |
06f76f0d KH |
1525 | CHECK_CHARACTER (from); |
1526 | CHECK_CHARACTER (to); | |
d6490542 KH |
1527 | if (XFASTINT (from) < 0x80) |
1528 | { | |
1529 | if (XFASTINT (from) != 0 || XFASTINT (to) < 0x7F) | |
d7a39b51 | 1530 | error ("Can't set a font for partial ASCII range"); |
d6490542 KH |
1531 | ascii_changed = 1; |
1532 | } | |
eb36588a | 1533 | range_list = Fcons (target, Qnil); |
4ed46869 | 1534 | } |
eb36588a | 1535 | else if (SYMBOLP (target) && !NILP (target)) |
8a9be3ac | 1536 | { |
1d5d7200 KH |
1537 | Lisp_Object script_list; |
1538 | Lisp_Object val; | |
0d407d77 | 1539 | |
1d5d7200 KH |
1540 | range_list = Qnil; |
1541 | script_list = XCHAR_TABLE (Vchar_script_table)->extras[0]; | |
eb36588a | 1542 | if (! NILP (Fmemq (target, script_list))) |
afe93d01 | 1543 | { |
d6490542 KH |
1544 | if (EQ (target, Qlatin)) |
1545 | ascii_changed = 1; | |
eb36588a | 1546 | val = Fcons (target, Qnil); |
1d5d7200 | 1547 | map_char_table (accumulate_script_ranges, Qnil, Vchar_script_table, |
8f924df7 | 1548 | val); |
a3d16f39 | 1549 | range_list = Fnreverse (XCDR (val)); |
afe93d01 | 1550 | } |
fb78e2ed | 1551 | if (CHARSETP (target)) |
afe93d01 | 1552 | { |
d6490542 KH |
1553 | CHECK_CHARSET_GET_CHARSET (target, charset); |
1554 | if (charset->ascii_compatible_p) | |
1555 | ascii_changed = 1; | |
afe93d01 | 1556 | } |
fb78e2ed | 1557 | else if (NILP (range_list)) |
1d5d7200 | 1558 | error ("Invalid script or charset name: %s", |
eb36588a | 1559 | SDATA (SYMBOL_NAME (target))); |
8a9be3ac | 1560 | } |
eb36588a KH |
1561 | else if (NILP (target)) |
1562 | range_list = Fcons (Qnil, Qnil); | |
1563 | else | |
1564 | error ("Invalid target for setting a font"); | |
0d407d77 | 1565 | |
a3d16f39 KH |
1566 | if (ascii_changed) |
1567 | { | |
1568 | Lisp_Object val; | |
1569 | ||
1570 | if (NILP (font_spec)) | |
1571 | error ("Can't set ASCII font to nil"); | |
1572 | val = CHAR_TABLE_REF (fontset, 0); | |
1573 | if (! NILP (val) && EQ (add, Qappend)) | |
1574 | /* We are going to change just an additional font for ASCII. */ | |
1575 | ascii_changed = 0; | |
1576 | } | |
fb78e2ed KH |
1577 | |
1578 | if (charset) | |
1579 | { | |
a3d16f39 KH |
1580 | Lisp_Object arg; |
1581 | ||
1582 | arg = Fmake_vector (make_number (5), Qnil); | |
1583 | ASET (arg, 0, fontset); | |
1584 | ASET (arg, 1, font_def); | |
1585 | ASET (arg, 2, add); | |
1586 | ASET (arg, 3, ascii_changed ? Qt : Qnil); | |
1587 | ASET (arg, 4, range_list); | |
fb78e2ed | 1588 | |
a3d16f39 | 1589 | map_charset_chars (set_fontset_font, Qnil, arg, charset, |
fb78e2ed KH |
1590 | CHARSET_MIN_CODE (charset), |
1591 | CHARSET_MAX_CODE (charset)); | |
a3d16f39 | 1592 | range_list = AREF (arg, 4); |
fb78e2ed | 1593 | } |
1d5d7200 KH |
1594 | for (; CONSP (range_list); range_list = XCDR (range_list)) |
1595 | FONTSET_ADD (fontset, XCAR (range_list), font_def, add); | |
4ed46869 | 1596 | |
d6490542 KH |
1597 | if (ascii_changed) |
1598 | { | |
1599 | Lisp_Object tail, frame, alist; | |
1600 | int fontset_id = XINT (FONTSET_ID (fontset)); | |
1601 | ||
d6490542 KH |
1602 | FONTSET_ASCII (fontset) = fontname; |
1603 | name = FONTSET_NAME (fontset); | |
1604 | FOR_EACH_FRAME (tail, frame) | |
1605 | { | |
1606 | FRAME_PTR f = XFRAME (frame); | |
1607 | Lisp_Object font_object; | |
0875632e | 1608 | struct face *face; |
d6490542 | 1609 | |
0875632e | 1610 | if (FRAME_INITIAL_P (f) || FRAME_TERMCAP_P (f)) |
d6490542 KH |
1611 | continue; |
1612 | if (fontset_id != FRAME_FONTSET (f)) | |
1613 | continue; | |
0875632e KH |
1614 | face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
1615 | if (face) | |
1616 | font_object = font_load_for_lface (f, face->lface, font_spec); | |
1617 | else | |
1618 | font_object = font_open_by_spec (f, font_spec); | |
d6490542 KH |
1619 | if (! NILP (font_object)) |
1620 | { | |
1621 | update_auto_fontset_alist (font_object, fontset); | |
0875632e | 1622 | alist = Fcons (Fcons (Qfont, Fcons (name, font_object)), Qnil); |
d6490542 KH |
1623 | Fmodify_frame_parameters (frame, alist); |
1624 | } | |
1625 | } | |
1626 | } | |
1627 | ||
0875632e KH |
1628 | /* Free all realized fontsets whose base is FONTSET. This way, the |
1629 | specified character(s) are surely redisplayed by a correct | |
1630 | font. */ | |
1631 | free_realized_fontsets (fontset); | |
1632 | ||
4ed46869 KH |
1633 | return Qnil; |
1634 | } | |
1635 | ||
06f76f0d KH |
1636 | |
1637 | DEFUN ("new-fontset", Fnew_fontset, Snew_fontset, 2, 2, 0, | |
1638 | doc: /* Create a new fontset NAME from font information in FONTLIST. | |
1639 | ||
1d5d7200 | 1640 | FONTLIST is an alist of scripts vs the corresponding font specification list. |
d6aaac9e KH |
1641 | Each element of FONTLIST has the form (SCRIPT FONT-SPEC ...), where a |
1642 | character of SCRIPT is displayed by a font that matches one of | |
1643 | FONT-SPEC. | |
06f76f0d | 1644 | |
d6aaac9e KH |
1645 | SCRIPT is a symbol that appears in the first extra slot of the |
1646 | char-table `char-script-table'. | |
06f76f0d | 1647 | |
1d5d7200 KH |
1648 | FONT-SPEC is a vector, a cons, or a string. See the documentation of |
1649 | `set-fontset-font' for the meaning. */) | |
5842a27b | 1650 | (Lisp_Object name, Lisp_Object fontlist) |
06f76f0d | 1651 | { |
1d5d7200 | 1652 | Lisp_Object fontset; |
1d5d7200 | 1653 | int id; |
06f76f0d KH |
1654 | |
1655 | CHECK_STRING (name); | |
1656 | CHECK_LIST (fontlist); | |
1657 | ||
581f7ac7 | 1658 | name = Fdowncase (name); |
1d5d7200 KH |
1659 | id = fs_query_fontset (name, 0); |
1660 | if (id < 0) | |
0d407d77 | 1661 | { |
581f7ac7 KH |
1662 | Lisp_Object font_spec = Ffont_spec (0, NULL); |
1663 | Lisp_Object short_name; | |
5f2d79e0 | 1664 | char xlfd[256]; |
581f7ac7 KH |
1665 | int len; |
1666 | ||
dbf46ba6 | 1667 | if (font_parse_xlfd ((char *) SDATA (name), font_spec) < 0) |
d6aaac9e | 1668 | error ("Fontset name must be in XLFD format"); |
581f7ac7 | 1669 | short_name = AREF (font_spec, FONT_REGISTRY_INDEX); |
dbf46ba6 | 1670 | if (strncmp ((char *) SDATA (SYMBOL_NAME (short_name)), "fontset-", 8) |
581f7ac7 KH |
1671 | || SBYTES (SYMBOL_NAME (short_name)) < 9) |
1672 | error ("Registry field of fontset name must be \"fontset-*\""); | |
1673 | Vfontset_alias_alist = Fcons (Fcons (name, SYMBOL_NAME (short_name)), | |
1674 | Vfontset_alias_alist); | |
1675 | ASET (font_spec, FONT_REGISTRY_INDEX, Qiso8859_1); | |
d6aaac9e | 1676 | fontset = make_fontset (Qnil, name, Qnil); |
5f2d79e0 KH |
1677 | len = font_unparse_xlfd (font_spec, 0, xlfd, 256); |
1678 | if (len < 0) | |
1679 | error ("Invalid fontset name (perhaps too long): %s", SDATA (name)); | |
581f7ac7 | 1680 | FONTSET_ASCII (fontset) = make_unibyte_string (xlfd, len); |
d6aaac9e | 1681 | } |
1d5d7200 KH |
1682 | else |
1683 | { | |
8510724d | 1684 | fontset = FONTSET_FROM_ID (id); |
1d5d7200 KH |
1685 | free_realized_fontsets (fontset); |
1686 | Fset_char_table_range (fontset, Qt, Qnil); | |
0d407d77 | 1687 | } |
4ed46869 | 1688 | |
1d5d7200 KH |
1689 | for (; ! NILP (fontlist); fontlist = Fcdr (fontlist)) |
1690 | { | |
1691 | Lisp_Object elt, script; | |
1692 | ||
1693 | elt = Fcar (fontlist); | |
1694 | script = Fcar (elt); | |
cc36ddbf KH |
1695 | elt = Fcdr (elt); |
1696 | if (CONSP (elt) && (NILP (XCDR (elt)) || CONSP (XCDR (elt)))) | |
1697 | for (; CONSP (elt); elt = XCDR (elt)) | |
1698 | Fset_fontset_font (name, script, XCAR (elt), Qnil, Qappend); | |
1699 | else | |
1700 | Fset_fontset_font (name, script, elt, Qnil, Qappend); | |
1d5d7200 | 1701 | } |
06f76f0d KH |
1702 | return name; |
1703 | } | |
1704 | ||
1705 | ||
452a78e0 | 1706 | /* Alist of automatically created fontsets. Each element is a cons |
581f7ac7 | 1707 | (FONT-SPEC . FONTSET-ID). */ |
452a78e0 | 1708 | static Lisp_Object auto_fontset_alist; |
d6aaac9e | 1709 | |
d6490542 KH |
1710 | /* Number of automatically created fontsets. */ |
1711 | static int num_auto_fontsets; | |
1712 | ||
d8d2f142 KH |
1713 | /* Retun a fontset synthesized from FONT-OBJECT. This is called from |
1714 | x_new_font when FONT-OBJECT is used for the default ASCII font of a | |
1715 | frame, and the returned fontset is used for the default fontset of | |
1716 | that frame. The fontset specifies a font of the same registry as | |
1717 | FONT-OBJECT for all characters in the repertory of the registry | |
1718 | (see Vfont_encoding_alist). If the repertory is not known, the | |
1719 | fontset specifies the font for all Latin characters assuming that a | |
1720 | user intends to use FONT-OBJECT for Latin characters. */ | |
d6490542 | 1721 | |
d6aaac9e | 1722 | int |
971de7fb | 1723 | fontset_from_font (Lisp_Object font_object) |
8aa07a8d | 1724 | { |
03ef560c | 1725 | Lisp_Object font_name = font_get_name (font_object); |
581f7ac7 | 1726 | Lisp_Object font_spec = Fcopy_font_spec (font_object); |
d6490542 | 1727 | Lisp_Object registry = AREF (font_spec, FONT_REGISTRY_INDEX); |
581f7ac7 KH |
1728 | Lisp_Object fontset_spec, alias, name, fontset; |
1729 | Lisp_Object val; | |
8aa07a8d | 1730 | |
581f7ac7 KH |
1731 | val = assoc_no_quit (font_spec, auto_fontset_alist); |
1732 | if (CONSP (val)) | |
1733 | return XINT (FONTSET_ID (XCDR (val))); | |
d6490542 | 1734 | if (num_auto_fontsets++ == 0) |
581f7ac7 | 1735 | alias = intern ("fontset-startup"); |
03ef560c KH |
1736 | else |
1737 | { | |
1738 | char temp[32]; | |
8aa07a8d | 1739 | |
d6490542 | 1740 | sprintf (temp, "fontset-auto%d", num_auto_fontsets - 1); |
581f7ac7 | 1741 | alias = intern (temp); |
03ef560c | 1742 | } |
581f7ac7 KH |
1743 | fontset_spec = Fcopy_font_spec (font_spec); |
1744 | ASET (fontset_spec, FONT_REGISTRY_INDEX, alias); | |
7ae2e7f0 | 1745 | name = Ffont_xlfd_name (fontset_spec, Qnil); |
03ef560c | 1746 | if (NILP (name)) |
581f7ac7 | 1747 | abort (); |
03ef560c | 1748 | fontset = make_fontset (Qnil, name, Qnil); |
581f7ac7 KH |
1749 | Vfontset_alias_alist = Fcons (Fcons (name, SYMBOL_NAME (alias)), |
1750 | Vfontset_alias_alist); | |
1751 | alias = Fdowncase (AREF (font_object, FONT_NAME_INDEX)); | |
1752 | Vfontset_alias_alist = Fcons (Fcons (name, alias), Vfontset_alias_alist); | |
1753 | auto_fontset_alist = Fcons (Fcons (font_spec, fontset), auto_fontset_alist); | |
d8d2f142 KH |
1754 | font_spec = Ffont_spec (0, NULL); |
1755 | ASET (font_spec, FONT_REGISTRY_INDEX, registry); | |
1756 | { | |
1757 | Lisp_Object target = find_font_encoding (SYMBOL_NAME (registry)); | |
1758 | ||
1759 | if (CONSP (target)) | |
1760 | target = XCDR (target); | |
1761 | if (! CHARSETP (target)) | |
1762 | target = Qlatin; | |
1763 | Fset_fontset_font (name, target, font_spec, Qnil, Qnil); | |
1764 | Fset_fontset_font (name, Qnil, font_spec, Qnil, Qnil); | |
1765 | } | |
1766 | ||
d6490542 | 1767 | FONTSET_ASCII (fontset) = font_name; |
edfda783 | 1768 | |
03ef560c | 1769 | return XINT (FONTSET_ID (fontset)); |
8aa07a8d KH |
1770 | } |
1771 | ||
d6490542 KH |
1772 | |
1773 | /* Update auto_fontset_alist for FONTSET. When an ASCII font of | |
1774 | FONTSET is changed, we delete an entry of FONTSET if any from | |
1775 | auto_fontset_alist so that FONTSET is not re-used by | |
1776 | fontset_from_font. */ | |
1777 | ||
1778 | static void | |
971de7fb | 1779 | update_auto_fontset_alist (Lisp_Object font_object, Lisp_Object fontset) |
d6490542 KH |
1780 | { |
1781 | Lisp_Object prev, tail; | |
1782 | ||
1783 | for (prev = Qnil, tail = auto_fontset_alist; CONSP (tail); | |
1784 | prev = tail, tail = XCDR (tail)) | |
1785 | if (EQ (fontset, XCDR (XCAR (tail)))) | |
1786 | { | |
1787 | if (NILP (prev)) | |
1788 | auto_fontset_alist = XCDR (tail); | |
1789 | else | |
1790 | XSETCDR (prev, XCDR (tail)); | |
1791 | break; | |
1792 | } | |
1793 | } | |
1794 | ||
1795 | ||
fe44f009 KH |
1796 | /* Return a cons (FONT-OBJECT . GLYPH-CODE). |
1797 | FONT-OBJECT is the font for the character at POSITION in the current | |
1ff005e1 | 1798 | buffer. This is computed from all the text properties and overlays |
cf14fd6e | 1799 | that apply to POSITION. POSTION may be nil, in which case, |
fe44f009 | 1800 | FONT-SPEC is the font for displaying the character CH with the |
cf14fd6e KH |
1801 | default face. |
1802 | ||
92c15c34 KH |
1803 | GLYPH-CODE is the glyph code in the font to use for the character. |
1804 | ||
1805 | If the 2nd optional arg CH is non-nil, it is a character to check | |
1806 | the font instead of the character at POSITION. | |
1807 | ||
1808 | It returns nil in the following cases: | |
1ff005e1 KH |
1809 | |
1810 | (1) The window system doesn't have a font for the character (thus | |
1811 | it is displayed by an empty box). | |
1812 | ||
1813 | (2) The character code is invalid. | |
1814 | ||
cf14fd6e KH |
1815 | (3) If POSITION is not nil, and the current buffer is not displayed |
1816 | in any window. | |
1ff005e1 KH |
1817 | |
1818 | In addition, the returned font name may not take into account of | |
1819 | such redisplay engine hooks as what used in jit-lock-mode if | |
1820 | POSITION is currently not visible. */ | |
1821 | ||
1822 | ||
92c15c34 | 1823 | DEFUN ("internal-char-font", Finternal_char_font, Sinternal_char_font, 1, 2, 0, |
335c5470 | 1824 | doc: /* For internal use only. */) |
5842a27b | 1825 | (Lisp_Object position, Lisp_Object ch) |
1ff005e1 | 1826 | { |
0f8b27ea | 1827 | EMACS_INT pos, pos_byte, dummy; |
1ff005e1 KH |
1828 | int face_id; |
1829 | int c; | |
1ff005e1 KH |
1830 | struct frame *f; |
1831 | struct face *face; | |
f0be8ea0 | 1832 | int cs_id; |
1ff005e1 | 1833 | |
cf14fd6e | 1834 | if (NILP (position)) |
92c15c34 KH |
1835 | { |
1836 | CHECK_CHARACTER (ch); | |
1837 | c = XINT (ch); | |
cf14fd6e | 1838 | f = XFRAME (selected_frame); |
f2cec7a9 | 1839 | face_id = lookup_basic_face (f, DEFAULT_FACE_ID); |
327719ee | 1840 | pos = -1; |
f0be8ea0 | 1841 | cs_id = -1; |
cf14fd6e KH |
1842 | } |
1843 | else | |
1844 | { | |
2f80c0a2 | 1845 | Lisp_Object window, charset; |
cf14fd6e KH |
1846 | struct window *w; |
1847 | ||
1848 | CHECK_NUMBER_COERCE_MARKER (position); | |
1849 | pos = XINT (position); | |
1850 | if (pos < BEGV || pos >= ZV) | |
1851 | args_out_of_range_3 (position, make_number (BEGV), make_number (ZV)); | |
1852 | pos_byte = CHAR_TO_BYTE (pos); | |
1853 | if (NILP (ch)) | |
1854 | c = FETCH_CHAR (pos_byte); | |
1855 | else | |
1856 | { | |
1857 | CHECK_NATNUM (ch); | |
1858 | c = XINT (ch); | |
1859 | } | |
1860 | window = Fget_buffer_window (Fcurrent_buffer (), Qnil); | |
1861 | if (NILP (window)) | |
1862 | return Qnil; | |
1863 | w = XWINDOW (window); | |
1864 | f = XFRAME (w->frame); | |
6970f632 CY |
1865 | face_id = face_at_buffer_position (w, pos, -1, -1, &dummy, |
1866 | pos + 100, 0, -1); | |
2f80c0a2 KH |
1867 | charset = Fget_char_property (position, Qcharset, Qnil); |
1868 | if (CHARSETP (charset)) | |
f0be8ea0 | 1869 | cs_id = XINT (CHARSET_SYMBOL_ID (charset)); |
2f80c0a2 | 1870 | else |
f0be8ea0 | 1871 | cs_id = -1; |
92c15c34 | 1872 | } |
1ff005e1 | 1873 | if (! CHAR_VALID_P (c, 0)) |
1ff005e1 | 1874 | return Qnil; |
327719ee | 1875 | face_id = FACE_FOR_CHAR (f, FACE_FROM_ID (f, face_id), c, pos, Qnil); |
1ff005e1 | 1876 | face = FACE_FROM_ID (f, face_id); |
581f7ac7 | 1877 | if (face->font) |
8aa07a8d | 1878 | { |
fe44f009 KH |
1879 | unsigned code = face->font->driver->encode_char (face->font, c); |
1880 | Lisp_Object font_object; | |
581f7ac7 KH |
1881 | /* Assignment to EMACS_INT stops GCC whining about limited range |
1882 | of data type. */ | |
1883 | EMACS_INT cod = code; | |
1884 | ||
1885 | if (code == FONT_INVALID_CODE) | |
1886 | return Qnil; | |
fe44f009 | 1887 | XSETFONT (font_object, face->font); |
581f7ac7 | 1888 | if (cod <= MOST_POSITIVE_FIXNUM) |
fe44f009 KH |
1889 | return Fcons (font_object, make_number (code)); |
1890 | return Fcons (font_object, Fcons (make_number (code >> 16), | |
581f7ac7 | 1891 | make_number (code & 0xFFFF))); |
92c15c34 KH |
1892 | } |
1893 | return Qnil; | |
1ff005e1 KH |
1894 | } |
1895 | ||
1896 | ||
1d5d7200 KH |
1897 | DEFUN ("fontset-info", Ffontset_info, Sfontset_info, 1, 2, 0, |
1898 | doc: /* Return information about a fontset FONTSET on frame FRAME. | |
e2b45cf9 | 1899 | |
a3d16f39 KH |
1900 | FONTSET is a fontset name string, nil for the fontset of FRAME, or t |
1901 | for the default fontset. FRAME nil means the selected frame. | |
1ff005e1 | 1902 | |
a3d16f39 | 1903 | The value is a char-table whose elements have this form: |
1ff005e1 | 1904 | |
a3d16f39 | 1905 | ((FONT OPENED-FONT ...) ...) |
1ff005e1 | 1906 | |
a3d16f39 | 1907 | FONT is a name of font specified for a range of characters. |
1ff005e1 | 1908 | |
d6aaac9e | 1909 | OPENED-FONT is a name of a font actually opened. |
1ff005e1 | 1910 | |
a3d16f39 KH |
1911 | The char-table has one extra slot. If FONTSET is not the default |
1912 | fontset, the value the extra slot is a char-table containing the | |
1913 | information about the derived fonts from the default fontset. The | |
1914 | format is the same as above. */) | |
5842a27b | 1915 | (Lisp_Object fontset, Lisp_Object frame) |
4ed46869 KH |
1916 | { |
1917 | FRAME_PTR f; | |
cc7b6145 KH |
1918 | Lisp_Object *realized[2], fontsets[2], tables[2]; |
1919 | Lisp_Object val, elt; | |
1920 | int c, i, j, k; | |
fc8865fc | 1921 | |
4ed46869 KH |
1922 | (*check_window_system_func) (); |
1923 | ||
a3d16f39 | 1924 | fontset = check_fontset_name (fontset, &frame); |
18f39d0e | 1925 | f = XFRAME (frame); |
4ed46869 | 1926 | |
1d5d7200 KH |
1927 | /* Recode fontsets realized on FRAME from the base fontset FONTSET |
1928 | in the table `realized'. */ | |
cc7b6145 KH |
1929 | realized[0] = (Lisp_Object *) alloca (sizeof (Lisp_Object) |
1930 | * ASIZE (Vfontset_table)); | |
1931 | for (i = j = 0; i < ASIZE (Vfontset_table); i++) | |
0d407d77 | 1932 | { |
1ff005e1 KH |
1933 | elt = FONTSET_FROM_ID (i); |
1934 | if (!NILP (elt) | |
1d5d7200 KH |
1935 | && EQ (FONTSET_BASE (elt), fontset) |
1936 | && EQ (FONTSET_FRAME (elt), frame)) | |
cc7b6145 | 1937 | realized[0][j++] = elt; |
0d407d77 | 1938 | } |
cc7b6145 | 1939 | realized[0][j] = Qnil; |
4ed46869 | 1940 | |
cc7b6145 KH |
1941 | realized[1] = (Lisp_Object *) alloca (sizeof (Lisp_Object) |
1942 | * ASIZE (Vfontset_table)); | |
1943 | for (i = j = 0; ! NILP (realized[0][i]); i++) | |
1944 | { | |
1945 | elt = FONTSET_DEFAULT (realized[0][i]); | |
1946 | if (! NILP (elt)) | |
1947 | realized[1][j++] = elt; | |
1948 | } | |
1949 | realized[1][j] = Qnil; | |
1950 | ||
1951 | tables[0] = Fmake_char_table (Qfontset_info, Qnil); | |
cc7b6145 | 1952 | fontsets[0] = fontset; |
348db3dd | 1953 | if (!EQ (fontset, Vdefault_fontset)) |
a3d16f39 KH |
1954 | { |
1955 | tables[1] = Fmake_char_table (Qnil, Qnil); | |
1956 | XCHAR_TABLE (tables[0])->extras[0] = tables[1]; | |
1957 | fontsets[1] = Vdefault_fontset; | |
1958 | } | |
e2b45cf9 | 1959 | |
1d5d7200 KH |
1960 | /* Accumulate information of the fontset in TABLE. The format of |
1961 | each element is ((FONT-SPEC OPENED-FONT ...) ...). */ | |
cc7b6145 | 1962 | for (k = 0; k <= 1; k++) |
0d407d77 | 1963 | { |
cc7b6145 | 1964 | for (c = 0; c <= MAX_CHAR; ) |
d6aaac9e | 1965 | { |
5b30be1a | 1966 | int from = c, to = MAX_5_BYTE_CHAR; |
0d407d77 | 1967 | |
cc7b6145 KH |
1968 | if (c <= MAX_5_BYTE_CHAR) |
1969 | { | |
1970 | val = char_table_ref_and_range (fontsets[k], c, &from, &to); | |
cc7b6145 KH |
1971 | } |
1972 | else | |
1973 | { | |
1974 | val = FONTSET_FALLBACK (fontsets[k]); | |
1975 | to = MAX_CHAR; | |
1976 | } | |
d6aaac9e | 1977 | if (VECTORP (val)) |
0d407d77 | 1978 | { |
d6aaac9e KH |
1979 | Lisp_Object alist; |
1980 | ||
1981 | /* At first, set ALIST to ((FONT-SPEC) ...). */ | |
1982 | for (alist = Qnil, i = 0; i < ASIZE (val); i++) | |
581f7ac7 KH |
1983 | if (! NILP (AREF (val, i))) |
1984 | alist = Fcons (Fcons (FONT_DEF_SPEC (AREF (val, i)), Qnil), | |
1985 | alist); | |
d6aaac9e KH |
1986 | alist = Fnreverse (alist); |
1987 | ||
660100f3 | 1988 | /* Then store opened font names to cdr of each elements. */ |
cc7b6145 | 1989 | for (i = 0; ! NILP (realized[k][i]); i++) |
1ff005e1 | 1990 | { |
cc7b6145 KH |
1991 | if (c <= MAX_5_BYTE_CHAR) |
1992 | val = FONTSET_REF (realized[k][i], c); | |
1993 | else | |
1994 | val = FONTSET_FALLBACK (realized[k][i]); | |
a3d16f39 | 1995 | if (! CONSP (val) || ! VECTORP (XCDR (val))) |
d6aaac9e | 1996 | continue; |
a3d16f39 KH |
1997 | /* VAL: (int . [[FACE-ID FONT-DEF FONT-OBJECT int] ... ]) */ |
1998 | val = XCDR (val); | |
1999 | for (j = 0; j < ASIZE (val); j++) | |
3d4448a8 | 2000 | { |
581f7ac7 KH |
2001 | elt = AREF (val, j); |
2002 | if (FONT_OBJECT_P (RFONT_DEF_OBJECT (elt))) | |
2003 | { | |
2004 | Lisp_Object font_object = RFONT_DEF_OBJECT (elt); | |
2005 | Lisp_Object slot, name; | |
2006 | ||
2007 | slot = Fassq (RFONT_DEF_SPEC (elt), alist); | |
2008 | name = AREF (font_object, FONT_NAME_INDEX); | |
2009 | if (NILP (Fmember (name, XCDR (slot)))) | |
2010 | nconc2 (slot, Fcons (name, Qnil)); | |
2011 | } | |
3d4448a8 | 2012 | } |
1ff005e1 | 2013 | } |
d6aaac9e KH |
2014 | |
2015 | /* Store ALIST in TBL for characters C..TO. */ | |
cc7b6145 KH |
2016 | if (c <= MAX_5_BYTE_CHAR) |
2017 | char_table_set_range (tables[k], c, to, alist); | |
2018 | else | |
2019 | XCHAR_TABLE (tables[k])->defalt = alist; | |
581f7ac7 KH |
2020 | |
2021 | /* At last, change each elements to font names. */ | |
2022 | for (; CONSP (alist); alist = XCDR (alist)) | |
2023 | { | |
2024 | elt = XCAR (alist); | |
7ae2e7f0 | 2025 | XSETCAR (elt, Ffont_xlfd_name (XCAR (elt), Qnil)); |
581f7ac7 | 2026 | } |
0d407d77 | 2027 | } |
d6aaac9e | 2028 | c = to + 1; |
0d407d77 | 2029 | } |
348db3dd | 2030 | if (EQ (fontset, Vdefault_fontset)) |
a3d16f39 | 2031 | break; |
0d407d77 | 2032 | } |
a921395d | 2033 | |
cc7b6145 | 2034 | return tables[0]; |
4ed46869 KH |
2035 | } |
2036 | ||
1d5d7200 | 2037 | |
0fdf26e6 | 2038 | DEFUN ("fontset-font", Ffontset_font, Sfontset_font, 2, 3, 0, |
335c5470 | 2039 | doc: /* Return a font name pattern for character CH in fontset NAME. |
0fdf26e6 | 2040 | If NAME is t, find a pattern in the default fontset. |
5fc05db0 | 2041 | If NAME is nil, find a pattern in the fontset of the selected frame. |
0fdf26e6 KH |
2042 | |
2043 | The value has the form (FAMILY . REGISTRY), where FAMILY is a font | |
2044 | family name and REGISTRY is a font registry name. This is actually | |
2045 | the first font name pattern for CH in the fontset or in the default | |
2046 | fontset. | |
2047 | ||
2048 | If the 2nd optional arg ALL is non-nil, return a list of all font name | |
2049 | patterns. */) | |
5842a27b | 2050 | (Lisp_Object name, Lisp_Object ch, Lisp_Object all) |
0d407d77 | 2051 | { |
1337ac77 | 2052 | int c; |
0fdf26e6 KH |
2053 | Lisp_Object fontset, elt, list, repertory, val; |
2054 | int i, j; | |
a3d16f39 | 2055 | Lisp_Object frame; |
0d407d77 | 2056 | |
a3d16f39 KH |
2057 | frame = Qnil; |
2058 | fontset = check_fontset_name (name, &frame); | |
0d407d77 | 2059 | |
06f76f0d | 2060 | CHECK_CHARACTER (ch); |
0d407d77 | 2061 | c = XINT (ch); |
0fdf26e6 KH |
2062 | list = Qnil; |
2063 | while (1) | |
2064 | { | |
2065 | for (i = 0, elt = FONTSET_REF (fontset, c); i < 2; | |
2066 | i++, elt = FONTSET_FALLBACK (fontset)) | |
2067 | if (VECTORP (elt)) | |
2068 | for (j = 0; j < ASIZE (elt); j++) | |
2069 | { | |
a124bbb6 KH |
2070 | Lisp_Object family, registry; |
2071 | ||
0fdf26e6 | 2072 | val = AREF (elt, j); |
5fc05db0 | 2073 | if (NILP (val)) |
563a866e | 2074 | return Qnil; |
0fdf26e6 KH |
2075 | repertory = AREF (val, 1); |
2076 | if (INTEGERP (repertory)) | |
2077 | { | |
2078 | struct charset *charset = CHARSET_FROM_ID (XINT (repertory)); | |
2079 | ||
2080 | if (! CHAR_CHARSET_P (c, charset)) | |
2081 | continue; | |
2082 | } | |
2083 | else if (CHAR_TABLE_P (repertory)) | |
2084 | { | |
2085 | if (NILP (CHAR_TABLE_REF (repertory, c))) | |
2086 | continue; | |
2087 | } | |
2088 | val = AREF (val, 0); | |
a124bbb6 KH |
2089 | /* VAL is a FONT-SPEC */ |
2090 | family = AREF (val, FONT_FAMILY_INDEX); | |
2091 | if (! NILP (family)) | |
2092 | family = SYMBOL_NAME (family); | |
2093 | registry = AREF (val, FONT_REGISTRY_INDEX); | |
2094 | if (! NILP (registry)) | |
2095 | registry = SYMBOL_NAME (registry); | |
2096 | val = Fcons (family, registry); | |
0fdf26e6 KH |
2097 | if (NILP (all)) |
2098 | return val; | |
2099 | list = Fcons (val, list); | |
2100 | } | |
2101 | if (EQ (fontset, Vdefault_fontset)) | |
2102 | break; | |
2103 | fontset = Vdefault_fontset; | |
2104 | } | |
2105 | return (Fnreverse (list)); | |
0d407d77 | 2106 | } |
0d407d77 KH |
2107 | |
2108 | DEFUN ("fontset-list", Ffontset_list, Sfontset_list, 0, 0, 0, | |
335c5470 | 2109 | doc: /* Return a list of all defined fontset names. */) |
5842a27b | 2110 | (void) |
0d407d77 KH |
2111 | { |
2112 | Lisp_Object fontset, list; | |
2113 | int i; | |
2114 | ||
2115 | list = Qnil; | |
2116 | for (i = 0; i < ASIZE (Vfontset_table); i++) | |
2117 | { | |
2118 | fontset = FONTSET_FROM_ID (i); | |
2119 | if (!NILP (fontset) | |
2120 | && BASE_FONTSET_P (fontset)) | |
2121 | list = Fcons (FONTSET_NAME (fontset), list); | |
2122 | } | |
1ff005e1 | 2123 | |
0d407d77 KH |
2124 | return list; |
2125 | } | |
2126 | ||
452a78e0 KH |
2127 | |
2128 | #ifdef FONTSET_DEBUG | |
2129 | ||
2130 | Lisp_Object | |
2131 | dump_fontset (fontset) | |
2132 | Lisp_Object fontset; | |
2133 | { | |
2134 | Lisp_Object vec; | |
2135 | ||
2136 | vec = Fmake_vector (make_number (3), Qnil); | |
2137 | ASET (vec, 0, FONTSET_ID (fontset)); | |
2138 | ||
2139 | if (BASE_FONTSET_P (fontset)) | |
2140 | { | |
2141 | ASET (vec, 1, FONTSET_NAME (fontset)); | |
2142 | } | |
2143 | else | |
2144 | { | |
2145 | Lisp_Object frame; | |
2146 | ||
2147 | frame = FONTSET_FRAME (fontset); | |
2148 | if (FRAMEP (frame)) | |
2149 | { | |
2150 | FRAME_PTR f = XFRAME (frame); | |
2151 | ||
2152 | if (FRAME_LIVE_P (f)) | |
1c82b4b3 KH |
2153 | ASET (vec, 1, |
2154 | Fcons (FONTSET_NAME (FONTSET_BASE (fontset)), f->name)); | |
452a78e0 | 2155 | else |
1c82b4b3 KH |
2156 | ASET (vec, 1, |
2157 | Fcons (FONTSET_NAME (FONTSET_BASE (fontset)), Qnil)); | |
452a78e0 | 2158 | } |
eb36588a KH |
2159 | if (!NILP (FONTSET_DEFAULT (fontset))) |
2160 | ASET (vec, 2, FONTSET_ID (FONTSET_DEFAULT (fontset))); | |
452a78e0 KH |
2161 | } |
2162 | return vec; | |
2163 | } | |
2164 | ||
2165 | DEFUN ("fontset-list-all", Ffontset_list_all, Sfontset_list_all, 0, 0, 0, | |
2166 | doc: /* Return a brief summary of all fontsets for debug use. */) | |
5842a27b | 2167 | (void) |
452a78e0 KH |
2168 | { |
2169 | Lisp_Object val; | |
2170 | int i; | |
2171 | ||
2172 | for (i = 0, val = Qnil; i < ASIZE (Vfontset_table); i++) | |
2173 | if (! NILP (AREF (Vfontset_table, i))) | |
2174 | val = Fcons (dump_fontset (AREF (Vfontset_table, i)), val); | |
2175 | return (Fnreverse (val)); | |
2176 | } | |
2177 | #endif /* FONTSET_DEBUG */ | |
2178 | ||
dfcf069d | 2179 | void |
971de7fb | 2180 | syms_of_fontset (void) |
4ed46869 | 2181 | { |
1d5d7200 | 2182 | DEFSYM (Qfontset, "fontset"); |
eb36588a | 2183 | Fput (Qfontset, Qchar_table_extra_slots, make_number (9)); |
d6aaac9e KH |
2184 | DEFSYM (Qfontset_info, "fontset-info"); |
2185 | Fput (Qfontset_info, Qchar_table_extra_slots, make_number (1)); | |
4ed46869 | 2186 | |
1d5d7200 KH |
2187 | DEFSYM (Qprepend, "prepend"); |
2188 | DEFSYM (Qappend, "append"); | |
c3fb88cc | 2189 | DEFSYM (Qlatin, "latin"); |
4ed46869 KH |
2190 | |
2191 | Vcached_fontset_data = Qnil; | |
2192 | staticpro (&Vcached_fontset_data); | |
2193 | ||
0d407d77 KH |
2194 | Vfontset_table = Fmake_vector (make_number (32), Qnil); |
2195 | staticpro (&Vfontset_table); | |
0d407d77 KH |
2196 | |
2197 | Vdefault_fontset = Fmake_char_table (Qfontset, Qnil); | |
2198 | staticpro (&Vdefault_fontset); | |
1ff005e1 KH |
2199 | FONTSET_ID (Vdefault_fontset) = make_number (0); |
2200 | FONTSET_NAME (Vdefault_fontset) | |
d67b4f80 | 2201 | = make_pure_c_string ("-*-*-*-*-*-*-*-*-*-*-*-*-fontset-default"); |
ff7a2223 | 2202 | ASET (Vfontset_table, 0, Vdefault_fontset); |
1ff005e1 | 2203 | next_fontset_id = 1; |
4ed46869 | 2204 | |
452a78e0 KH |
2205 | auto_fontset_alist = Qnil; |
2206 | staticpro (&auto_fontset_alist); | |
2207 | ||
28e2436a KH |
2208 | DEFVAR_LISP ("font-encoding-charset-alist", &Vfont_encoding_charset_alist, |
2209 | doc: /* | |
2210 | Alist of charsets vs the charsets to determine the preferred font encoding. | |
eb152aa9 | 2211 | Each element looks like (CHARSET . ENCODING-CHARSET), |
28e2436a KH |
2212 | where ENCODING-CHARSET is a charset registered in the variable |
2213 | `font-encoding-alist' as ENCODING. | |
2214 | ||
2215 | When a text has a property `charset' and the value is CHARSET, a font | |
2216 | whose encoding corresponds to ENCODING-CHARSET is preferred. */); | |
2217 | Vfont_encoding_charset_alist = Qnil; | |
2218 | ||
6a7e6d80 | 2219 | DEFVAR_LISP ("use-default-ascent", &Vuse_default_ascent, |
1d5d7200 KH |
2220 | doc: /* |
2221 | Char table of characters whose ascent values should be ignored. | |
335c5470 | 2222 | If an entry for a character is non-nil, the ascent value of the glyph |
eb152aa9 | 2223 | is assumed to be specified by _MULE_DEFAULT_ASCENT property of a font. |
335c5470 PJ |
2224 | |
2225 | This affects how a composite character which contains | |
2226 | such a character is displayed on screen. */); | |
2aeafb78 KH |
2227 | Vuse_default_ascent = Qnil; |
2228 | ||
2229 | DEFVAR_LISP ("ignore-relative-composition", &Vignore_relative_composition, | |
1d5d7200 | 2230 | doc: /* |
eb152aa9 | 2231 | Char table of characters which are not composed relatively. |
335c5470 PJ |
2232 | If an entry for a character is non-nil, a composition sequence |
2233 | which contains that character is displayed so that | |
2234 | the glyph of that character is put without considering | |
2235 | an ascent and descent value of a previous character. */); | |
810abb87 | 2236 | Vignore_relative_composition = Qnil; |
6a7e6d80 | 2237 | |
01d4b817 | 2238 | DEFVAR_LISP ("alternate-fontname-alist", &Valternate_fontname_alist, |
335c5470 PJ |
2239 | doc: /* Alist of fontname vs list of the alternate fontnames. |
2240 | When a specified font name is not found, the corresponding | |
2241 | alternate fontnames (if any) are tried instead. */); | |
01d4b817 | 2242 | Valternate_fontname_alist = Qnil; |
8c83e4f9 | 2243 | |
1c283e35 | 2244 | DEFVAR_LISP ("fontset-alias-alist", &Vfontset_alias_alist, |
335c5470 | 2245 | doc: /* Alist of fontset names vs the aliases. */); |
1ff005e1 | 2246 | Vfontset_alias_alist = Fcons (Fcons (FONTSET_NAME (Vdefault_fontset), |
d67b4f80 | 2247 | make_pure_c_string ("fontset-default")), |
1ff005e1 | 2248 | Qnil); |
1c283e35 | 2249 | |
810abb87 KH |
2250 | DEFVAR_LISP ("vertical-centering-font-regexp", |
2251 | &Vvertical_centering_font_regexp, | |
335c5470 PJ |
2252 | doc: /* *Regexp matching font names that require vertical centering on display. |
2253 | When a character is displayed with such fonts, the character is displayed | |
fc8865fc | 2254 | at the vertical center of lines. */); |
810abb87 KH |
2255 | Vvertical_centering_font_regexp = Qnil; |
2256 | ||
21ff5ed6 KH |
2257 | DEFVAR_LISP ("otf-script-alist", &Votf_script_alist, |
2258 | doc: /* Alist of OpenType script tags vs the corresponding script names. */); | |
2259 | Votf_script_alist = Qnil; | |
2260 | ||
4ed46869 KH |
2261 | defsubr (&Squery_fontset); |
2262 | defsubr (&Snew_fontset); | |
2263 | defsubr (&Sset_fontset_font); | |
1ff005e1 | 2264 | defsubr (&Sinternal_char_font); |
4ed46869 | 2265 | defsubr (&Sfontset_info); |
0d407d77 KH |
2266 | defsubr (&Sfontset_font); |
2267 | defsubr (&Sfontset_list); | |
452a78e0 KH |
2268 | #ifdef FONTSET_DEBUG |
2269 | defsubr (&Sfontset_list_all); | |
2270 | #endif | |
e3400864 | 2271 | } |
92c15c34 KH |
2272 | |
2273 | /* arch-tag: ea861585-2f5f-4e5b-9849-d04a9c3a3537 | |
2274 | (do not change this comment) */ |