Commit | Line | Data |
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4ed46869 | 1 | /* Fontset handler. |
5df4f04c | 2 | Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 |
429ab54e | 3 | Free Software Foundation, Inc. |
7976eda0 | 4 | Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
5df4f04c | 5 | 2005, 2006, 2007, 2008, 2009, 2010, 2011 |
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 | ||
180 | extern Lisp_Object Qfont; | |
d6aaac9e KH |
181 | static Lisp_Object Qfontset; |
182 | static Lisp_Object Qfontset_info; | |
1d5d7200 | 183 | static Lisp_Object Qprepend, Qappend; |
ef6e0694 | 184 | Lisp_Object Qlatin; |
0d407d77 KH |
185 | |
186 | /* Vector containing all fontsets. */ | |
187 | static Lisp_Object Vfontset_table; | |
188 | ||
fc8865fc | 189 | /* Next possibly free fontset ID. Usually this keeps the minimum |
0d407d77 KH |
190 | fontset ID not yet used. */ |
191 | static int next_fontset_id; | |
192 | ||
193 | /* The default fontset. This gives default FAMILY and REGISTRY of | |
06f76f0d | 194 | font for each character. */ |
0d407d77 | 195 | static Lisp_Object Vdefault_fontset; |
4ed46869 | 196 | |
28e2436a | 197 | Lisp_Object Vfont_encoding_charset_alist; |
6a7e6d80 | 198 | Lisp_Object Vuse_default_ascent; |
2aeafb78 | 199 | Lisp_Object Vignore_relative_composition; |
01d4b817 | 200 | Lisp_Object Valternate_fontname_alist; |
1c283e35 | 201 | Lisp_Object Vfontset_alias_alist; |
810abb87 | 202 | Lisp_Object Vvertical_centering_font_regexp; |
21ff5ed6 | 203 | Lisp_Object Votf_script_alist; |
4ed46869 | 204 | |
4ed46869 | 205 | /* Check if any window system is used now. */ |
5771dcf4 | 206 | void (*check_window_system_func) P_ ((void)); |
4ed46869 | 207 | |
0d407d77 KH |
208 | |
209 | /* Prototype declarations for static functions. */ | |
b11a4ed7 DL |
210 | static Lisp_Object fontset_add P_ ((Lisp_Object, Lisp_Object, Lisp_Object, |
211 | Lisp_Object)); | |
581f7ac7 KH |
212 | static Lisp_Object fontset_find_font P_ ((Lisp_Object, int, struct face *, |
213 | int, int)); | |
41ad6003 | 214 | static void reorder_font_vector P_ ((Lisp_Object, struct font *)); |
7e1a1cd9 | 215 | static Lisp_Object fontset_font P_ ((Lisp_Object, int, struct face *, int)); |
0d407d77 | 216 | static Lisp_Object make_fontset P_ ((Lisp_Object, Lisp_Object, Lisp_Object)); |
0d407d77 | 217 | static Lisp_Object fontset_pattern_regexp P_ ((Lisp_Object)); |
1d5d7200 KH |
218 | static void accumulate_script_ranges P_ ((Lisp_Object, Lisp_Object, |
219 | Lisp_Object)); | |
8aa07a8d | 220 | Lisp_Object find_font_encoding P_ ((Lisp_Object)); |
0d407d77 | 221 | |
2449d4d0 KH |
222 | static void set_fontset_font P_ ((Lisp_Object, Lisp_Object)); |
223 | ||
556383ac KH |
224 | #ifdef FONTSET_DEBUG |
225 | ||
226 | /* Return 1 if ID is a valid fontset id, else return 0. */ | |
227 | ||
228 | static int | |
229 | fontset_id_valid_p (id) | |
230 | int id; | |
231 | { | |
232 | return (id >= 0 && id < ASIZE (Vfontset_table) - 1); | |
233 | } | |
234 | ||
235 | #endif | |
236 | ||
0d407d77 KH |
237 | |
238 | \f | |
239 | /********** MACROS AND FUNCTIONS TO HANDLE FONTSET **********/ | |
240 | ||
0d407d77 KH |
241 | /* Return the fontset with ID. No check of ID's validness. */ |
242 | #define FONTSET_FROM_ID(id) AREF (Vfontset_table, id) | |
243 | ||
afe93d01 | 244 | /* Macros to access special values of FONTSET. */ |
0d407d77 | 245 | #define FONTSET_ID(fontset) XCHAR_TABLE (fontset)->extras[0] |
06f76f0d KH |
246 | |
247 | /* Macros to access special values of (base) FONTSET. */ | |
0d407d77 | 248 | #define FONTSET_NAME(fontset) XCHAR_TABLE (fontset)->extras[1] |
06f76f0d | 249 | #define FONTSET_ASCII(fontset) XCHAR_TABLE (fontset)->extras[4] |
581f7ac7 | 250 | #define FONTSET_SPEC(fontset) XCHAR_TABLE (fontset)->extras[5] |
06f76f0d | 251 | |
06f76f0d KH |
252 | /* Macros to access special values of (realized) FONTSET. */ |
253 | #define FONTSET_BASE(fontset) XCHAR_TABLE (fontset)->extras[2] | |
254 | #define FONTSET_FRAME(fontset) XCHAR_TABLE (fontset)->extras[3] | |
9459b1e9 | 255 | #define FONTSET_OBJLIST(fontset) XCHAR_TABLE (fontset)->extras[4] |
1d5d7200 KH |
256 | #define FONTSET_NOFONT_FACE(fontset) XCHAR_TABLE (fontset)->extras[5] |
257 | #define FONTSET_REPERTORY(fontset) XCHAR_TABLE (fontset)->extras[6] | |
eb36588a KH |
258 | #define FONTSET_DEFAULT(fontset) XCHAR_TABLE (fontset)->extras[7] |
259 | ||
cc7b6145 | 260 | /* For both base and realized fontset. */ |
eb36588a | 261 | #define FONTSET_FALLBACK(fontset) XCHAR_TABLE (fontset)->extras[8] |
0d407d77 | 262 | |
e3400864 | 263 | #define BASE_FONTSET_P(fontset) (NILP (FONTSET_BASE (fontset))) |
0d407d77 KH |
264 | |
265 | ||
581f7ac7 KH |
266 | /* Macros for FONT-DEF and RFONT-DEF of fontset. */ |
267 | #define FONT_DEF_NEW(font_def, font_spec, encoding, repertory) \ | |
268 | do { \ | |
269 | (font_def) = Fmake_vector (make_number (3), (font_spec)); \ | |
270 | ASET ((font_def), 1, encoding); \ | |
271 | ASET ((font_def), 2, repertory); \ | |
272 | } while (0) | |
273 | ||
274 | #define FONT_DEF_SPEC(font_def) AREF (font_def, 0) | |
275 | #define FONT_DEF_ENCODING(font_def) AREF (font_def, 1) | |
276 | #define FONT_DEF_REPERTORY(font_def) AREF (font_def, 2) | |
277 | ||
278 | #define RFONT_DEF_FACE(rfont_def) AREF (rfont_def, 0) | |
279 | #define RFONT_DEF_SET_FACE(rfont_def, face_id) \ | |
280 | ASET ((rfont_def), 0, make_number (face_id)) | |
281 | #define RFONT_DEF_FONT_DEF(rfont_def) AREF (rfont_def, 1) | |
282 | #define RFONT_DEF_SPEC(rfont_def) FONT_DEF_SPEC (AREF (rfont_def, 1)) | |
283 | #define RFONT_DEF_REPERTORY(rfont_def) FONT_DEF_REPERTORY (AREF (rfont_def, 1)) | |
284 | #define RFONT_DEF_OBJECT(rfont_def) AREF (rfont_def, 2) | |
285 | #define RFONT_DEF_SET_OBJECT(rfont_def, object) \ | |
286 | ASET ((rfont_def), 2, (object)) | |
287 | #define RFONT_DEF_SCORE(rfont_def) XINT (AREF (rfont_def, 3)) | |
288 | #define RFONT_DEF_SET_SCORE(rfont_def, score) \ | |
289 | ASET ((rfont_def), 3, make_number (score)) | |
290 | #define RFONT_DEF_NEW(rfont_def, font_def) \ | |
291 | do { \ | |
292 | (rfont_def) = Fmake_vector (make_number (4), Qnil); \ | |
293 | ASET ((rfont_def), 1, (font_def)); \ | |
294 | RFONT_DEF_SET_SCORE ((rfont_def), 0); \ | |
295 | } while (0) | |
296 | ||
297 | ||
1d5d7200 KH |
298 | /* Return the element of FONTSET for the character C. If FONTSET is a |
299 | base fontset other then the default fontset and FONTSET doesn't | |
300 | contain information for C, return the information in the default | |
301 | fontset. */ | |
0d407d77 | 302 | |
1d5d7200 KH |
303 | #define FONTSET_REF(fontset, c) \ |
304 | (EQ (fontset, Vdefault_fontset) \ | |
305 | ? CHAR_TABLE_REF (fontset, c) \ | |
306 | : fontset_ref ((fontset), (c))) | |
0d407d77 | 307 | |
afe93d01 | 308 | static Lisp_Object |
0d407d77 KH |
309 | fontset_ref (fontset, c) |
310 | Lisp_Object fontset; | |
311 | int c; | |
312 | { | |
06f76f0d KH |
313 | Lisp_Object elt; |
314 | ||
1d5d7200 KH |
315 | elt = CHAR_TABLE_REF (fontset, c); |
316 | if (NILP (elt) && ! EQ (fontset, Vdefault_fontset) | |
317 | /* Don't check Vdefault_fontset for a realized fontset. */ | |
318 | && NILP (FONTSET_BASE (fontset))) | |
319 | elt = CHAR_TABLE_REF (Vdefault_fontset, c); | |
0d407d77 KH |
320 | return elt; |
321 | } | |
322 | ||
1d5d7200 KH |
323 | /* Set elements of FONTSET for characters in RANGE to the value ELT. |
324 | RANGE is a cons (FROM . TO), where FROM and TO are character codes | |
325 | specifying a range. */ | |
326 | ||
327 | #define FONTSET_SET(fontset, range, elt) \ | |
328 | Fset_char_table_range ((fontset), (range), (elt)) | |
329 | ||
0d407d77 | 330 | |
1d5d7200 | 331 | /* Modify the elements of FONTSET for characters in RANGE by replacing |
6bad8007 | 332 | with ELT or adding ELT. RANGE is a cons (FROM . TO), where FROM |
1d5d7200 KH |
333 | and TO are character codes specifying a range. If ADD is nil, |
334 | replace with ELT, if ADD is `prepend', prepend ELT, otherwise, | |
335 | append ELT. */ | |
336 | ||
cc7b6145 KH |
337 | #define FONTSET_ADD(fontset, range, elt, add) \ |
338 | (NILP (add) \ | |
339 | ? (NILP (range) \ | |
340 | ? (FONTSET_FALLBACK (fontset) = Fmake_vector (make_number (1), (elt))) \ | |
341 | : Fset_char_table_range ((fontset), (range), \ | |
342 | Fmake_vector (make_number (1), (elt)))) \ | |
1d5d7200 | 343 | : fontset_add ((fontset), (range), (elt), (add))) |
0d407d77 | 344 | |
b11a4ed7 | 345 | static Lisp_Object |
1d5d7200 | 346 | fontset_add (fontset, range, elt, add) |
00c4da0f | 347 | Lisp_Object fontset, range, elt, 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 KH |
378 | static int |
379 | fontset_compare_rfontdef (val1, val2) | |
380 | const void *val1, *val2; | |
381 | { | |
41ad6003 KH |
382 | return (RFONT_DEF_SCORE (*(Lisp_Object *) val1) |
383 | - RFONT_DEF_SCORE (*(Lisp_Object *) val2)); | |
581f7ac7 | 384 | } |
1d5d7200 | 385 | |
ea0162a6 | 386 | /* Update FONT-GROUP which has this form: |
581f7ac7 KH |
387 | [ CHARSET-ORDERED-LIST-TICK PREFERRED-RFONT-DEF |
388 | RFONT-DEF0 RFONT-DEF1 ... ] | |
20746fe4 | 389 | Reorder RFONT-DEFs according to the current language, and update |
581f7ac7 KH |
390 | CHARSET-ORDERED-LIST-TICK. |
391 | ||
392 | If PREFERRED_FAMILY is not nil, that family has the higher priority | |
393 | if the encoding charsets or languages in font-specs are the same. */ | |
394 | ||
395 | extern Lisp_Object Fassoc_string (); | |
0d407d77 KH |
396 | |
397 | static void | |
41ad6003 | 398 | reorder_font_vector (font_group, font) |
ea0162a6 | 399 | Lisp_Object font_group; |
41ad6003 | 400 | struct font *font; |
1d5d7200 | 401 | { |
41ad6003 | 402 | Lisp_Object vec, font_object; |
1d5d7200 | 403 | int size; |
581f7ac7 KH |
404 | int i; |
405 | int score_changed = 0; | |
1d5d7200 | 406 | |
41ad6003 KH |
407 | if (font) |
408 | XSETFONT (font_object, font); | |
409 | else | |
410 | font_object = Qnil; | |
411 | ||
412 | vec = XCDR (font_group); | |
413 | size = ASIZE (vec); | |
414 | /* Exclude the tailing nil element from the reordering. */ | |
415 | if (NILP (AREF (vec, size - 1))) | |
416 | size--; | |
581f7ac7 KH |
417 | |
418 | for (i = 0; i < size; i++) | |
6bad8007 | 419 | { |
41ad6003 | 420 | Lisp_Object rfont_def = AREF (vec, i); |
581f7ac7 KH |
421 | Lisp_Object font_def = RFONT_DEF_FONT_DEF (rfont_def); |
422 | Lisp_Object font_spec = FONT_DEF_SPEC (font_def); | |
41ad6003 | 423 | int score = RFONT_DEF_SCORE (rfont_def) & 0xFF; |
581f7ac7 | 424 | |
41ad6003 | 425 | 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 | |
ea180610 | 466 | for C even in the fallback group), or 0 (a font for C may be found |
f084f942 KH |
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); | |
ea180610 AS |
484 | if (NILP (base_fontset)) |
485 | font_group = Qnil; | |
486 | else if (c >= 0) | |
41ad6003 KH |
487 | font_group = char_table_ref_and_range (base_fontset, c, &from, &to); |
488 | else | |
489 | font_group = FONTSET_FALLBACK (base_fontset); | |
490 | if (NILP (font_group)) | |
f088b054 | 491 | { |
f084f942 | 492 | font_group = make_number (0); |
f088b054 | 493 | if (c >= 0) |
f084f942 KH |
494 | char_table_set_range (fontset, from, to, font_group); |
495 | return font_group; | |
f088b054 | 496 | } |
ea180610 AS |
497 | if (!VECTORP (font_group)) |
498 | return font_group; | |
41ad6003 KH |
499 | font_group = Fcopy_sequence (font_group); |
500 | for (i = 0; i < ASIZE (font_group); i++) | |
501 | if (! NILP (AREF (font_group, i))) | |
502 | { | |
503 | Lisp_Object rfont_def; | |
504 | ||
505 | RFONT_DEF_NEW (rfont_def, AREF (font_group, i)); | |
506 | /* Remember the original order. */ | |
507 | RFONT_DEF_SET_SCORE (rfont_def, i); | |
508 | ASET (font_group, i, rfont_def); | |
509 | } | |
510 | font_group = Fcons (make_number (-1), font_group); | |
511 | if (c >= 0) | |
512 | char_table_set_range (fontset, from, to, font_group); | |
513 | else | |
514 | FONTSET_FALLBACK (fontset) = font_group; | |
515 | return font_group; | |
0d407d77 KH |
516 | } |
517 | ||
7e1a1cd9 | 518 | /* Return RFONT-DEF (vector) in the realized fontset FONTSET for the |
d67f7f1a KH |
519 | character C. If no font is found, return Qnil if there's a |
520 | possibility that the default fontset or the fallback font groups | |
521 | have a proper font, and return Qt if not. | |
522 | ||
523 | If a font is found but is not yet opened, open it (if FACE is not | |
524 | NULL) or return Qnil (if FACE is NULL). | |
525 | ||
1c82b4b3 KH |
526 | ID is a charset-id that must be preferred, or -1 meaning no |
527 | preference. | |
d67f7f1a | 528 | |
ea0162a6 | 529 | If FALLBACK is nonzero, search only fallback fonts. */ |
0d407d77 | 530 | |
7e1a1cd9 | 531 | static Lisp_Object |
1c82b4b3 | 532 | fontset_find_font (fontset, c, face, id, fallback) |
0d407d77 KH |
533 | Lisp_Object fontset; |
534 | int c; | |
1d5d7200 | 535 | struct face *face; |
1c82b4b3 | 536 | int id, fallback; |
0d407d77 | 537 | { |
162f5458 | 538 | Lisp_Object vec, font_group; |
374bf7e4 | 539 | int i, charset_matched = 0, found_index; |
2a1ef5be KH |
540 | FRAME_PTR f = (FRAMEP (FONTSET_FRAME (fontset)) |
541 | ? XFRAME (FONTSET_FRAME (fontset)) : XFRAME (selected_frame)); | |
a71ccf3a | 542 | Lisp_Object rfont_def; |
0d407d77 | 543 | |
41ad6003 KH |
544 | font_group = fontset_get_font_group (fontset, fallback ? -1 : c); |
545 | if (! CONSP (font_group)) | |
bf86d09c | 546 | return font_group; |
41ad6003 KH |
547 | vec = XCDR (font_group); |
548 | if (ASIZE (vec) == 0) | |
549 | return Qnil; | |
eaa0402c | 550 | |
41ad6003 | 551 | if (ASIZE (vec) > 1) |
1d5d7200 | 552 | { |
41ad6003 KH |
553 | if (XINT (XCAR (font_group)) != charset_ordered_list_tick) |
554 | /* We have just created the font-group, | |
555 | or the charset priorities were changed. */ | |
556 | reorder_font_vector (font_group, face->ascii_face->font); | |
557 | if (id >= 0) | |
558 | /* Find a spec matching with the charset ID to try at | |
559 | first. */ | |
560 | for (i = 0; i < ASIZE (vec); i++) | |
561 | { | |
0ff75233 KH |
562 | Lisp_Object repertory; |
563 | ||
a71ccf3a | 564 | rfont_def = AREF (vec, i); |
0ff75233 KH |
565 | if (NILP (rfont_def)) |
566 | break; | |
567 | repertory = FONT_DEF_REPERTORY (RFONT_DEF_FONT_DEF (rfont_def)); | |
41ad6003 KH |
568 | |
569 | if (XINT (repertory) == id) | |
eaa0402c | 570 | { |
41ad6003 | 571 | charset_matched = i; |
581f7ac7 | 572 | break; |
41ad6003 KH |
573 | } |
574 | } | |
581f7ac7 | 575 | } |
1d5d7200 | 576 | |
7e1a1cd9 | 577 | /* Find the first available font in the vector of RFONT-DEF. */ |
41ad6003 | 578 | for (i = 0; i < ASIZE (vec); i++) |
0d407d77 | 579 | { |
a71ccf3a | 580 | Lisp_Object font_def; |
dbf46ba6 | 581 | Lisp_Object font_entity, font_object; |
581f7ac7 | 582 | |
635c75b1 | 583 | found_index = i; |
374bf7e4 | 584 | if (i == 0) |
41ad6003 | 585 | { |
374bf7e4 KH |
586 | if (charset_matched > 0) |
587 | { | |
635c75b1 KH |
588 | /* Try the element matching with the charset ID at first. */ |
589 | found_index = charset_matched; | |
590 | /* Make this negative so that we don't come here in the | |
591 | next loop. */ | |
374bf7e4 | 592 | charset_matched = - charset_matched; |
635c75b1 | 593 | /* We must try the first element in the next loop. */ |
374bf7e4 KH |
594 | i--; |
595 | } | |
41ad6003 | 596 | } |
635c75b1 | 597 | else if (i == - charset_matched) |
374bf7e4 KH |
598 | { |
599 | /* We have already tried this element and the followings | |
635c75b1 KH |
600 | that have the same font specifications in the first |
601 | iteration. So, skip them all. */ | |
374bf7e4 KH |
602 | rfont_def = AREF (vec, i); |
603 | font_def = RFONT_DEF_FONT_DEF (rfont_def); | |
604 | for (; i + 1 < ASIZE (vec); i++) | |
605 | { | |
606 | rfont_def = AREF (vec, i + 1); | |
607 | if (NILP (rfont_def)) | |
608 | break; | |
609 | if (! EQ (RFONT_DEF_FONT_DEF (rfont_def), font_def)) | |
610 | break; | |
611 | } | |
612 | continue; | |
613 | } | |
41ad6003 | 614 | |
374bf7e4 | 615 | rfont_def = AREF (vec, found_index); |
162f5458 | 616 | if (NILP (rfont_def)) |
374bf7e4 | 617 | { |
635c75b1 | 618 | if (i < 0) |
374bf7e4 KH |
619 | continue; |
620 | /* This is a sign of not to try the other fonts. */ | |
621 | return Qt; | |
622 | } | |
162f5458 KH |
623 | if (INTEGERP (RFONT_DEF_FACE (rfont_def)) |
624 | && XINT (RFONT_DEF_FACE (rfont_def)) < 0) | |
1d5d7200 KH |
625 | /* We couldn't open this font last time. */ |
626 | continue; | |
627 | ||
162f5458 | 628 | font_object = RFONT_DEF_OBJECT (rfont_def); |
581f7ac7 | 629 | if (NILP (font_object)) |
8aa07a8d | 630 | { |
162f5458 | 631 | font_def = RFONT_DEF_FONT_DEF (rfont_def); |
d67f7f1a | 632 | |
581f7ac7 KH |
633 | if (! face) |
634 | /* We have not yet opened the font. */ | |
635 | return Qnil; | |
162f5458 KH |
636 | /* Find a font best-matching with the spec without checking |
637 | the support of the character C. That checking is costly, | |
638 | and even without the checking, the found font supports C | |
639 | in high possibility. */ | |
581f7ac7 KH |
640 | font_entity = font_find_for_lface (f, face->lface, |
641 | FONT_DEF_SPEC (font_def), -1); | |
d67f7f1a | 642 | if (NILP (font_entity)) |
8b67c40a | 643 | { |
581f7ac7 | 644 | /* Record that no font matches the spec. */ |
162f5458 | 645 | RFONT_DEF_SET_FACE (rfont_def, -1); |
581f7ac7 | 646 | continue; |
d67f7f1a | 647 | } |
ca2b2cde KH |
648 | font_object = font_open_for_lface (f, font_entity, face->lface, |
649 | FONT_DEF_SPEC (font_def)); | |
581f7ac7 | 650 | if (NILP (font_object)) |
d67f7f1a | 651 | { |
162f5458 KH |
652 | /* Something strange happened, perhaps because of a |
653 | Font-backend problem. Too avoid crashing, record | |
654 | that this spec is unsable. It may be better to find | |
655 | another font of the same spec, but currently we don't | |
656 | have such an API. */ | |
657 | RFONT_DEF_SET_FACE (rfont_def, -1); | |
581f7ac7 | 658 | continue; |
8aa07a8d | 659 | } |
162f5458 | 660 | RFONT_DEF_SET_OBJECT (rfont_def, font_object); |
8aa07a8d | 661 | } |
eb152aa9 | 662 | |
581f7ac7 | 663 | if (font_has_char (f, font_object, c)) |
a71ccf3a | 664 | goto found; |
581f7ac7 | 665 | |
162f5458 KH |
666 | /* Find a font already opened, maching with the current spec, |
667 | and supporting C. */ | |
668 | font_def = RFONT_DEF_FONT_DEF (rfont_def); | |
374bf7e4 | 669 | for (; found_index + 1 < ASIZE (vec); found_index++) |
57e13af9 | 670 | { |
374bf7e4 | 671 | rfont_def = AREF (vec, found_index + 1); |
7d72bb82 | 672 | if (NILP (rfont_def)) |
374bf7e4 | 673 | break; |
162f5458 | 674 | if (! EQ (RFONT_DEF_FONT_DEF (rfont_def), font_def)) |
581f7ac7 | 675 | break; |
374bf7e4 | 676 | font_object = RFONT_DEF_OBJECT (rfont_def); |
69a8e484 | 677 | if (! NILP (font_object) && font_has_char (f, font_object, c)) |
374bf7e4 KH |
678 | { |
679 | found_index++; | |
680 | goto found; | |
681 | } | |
57e13af9 | 682 | } |
162f5458 KH |
683 | |
684 | /* Find a font-entity with the current spec and supporting C. */ | |
581f7ac7 KH |
685 | font_entity = font_find_for_lface (f, face->lface, |
686 | FONT_DEF_SPEC (font_def), c); | |
687 | if (! NILP (font_entity)) | |
1d5d7200 | 688 | { |
162f5458 KH |
689 | /* We found a font. Open it and insert a new element for |
690 | that font in VEC. */ | |
691 | Lisp_Object new_vec; | |
581f7ac7 | 692 | int j; |
1d5d7200 | 693 | |
581f7ac7 KH |
694 | font_object = font_open_for_lface (f, font_entity, face->lface, |
695 | Qnil); | |
162f5458 KH |
696 | if (NILP (font_object)) |
697 | continue; | |
581f7ac7 KH |
698 | RFONT_DEF_NEW (rfont_def, font_def); |
699 | RFONT_DEF_SET_OBJECT (rfont_def, font_object); | |
162f5458 | 700 | RFONT_DEF_SET_SCORE (rfont_def, RFONT_DEF_SCORE (rfont_def)); |
581f7ac7 | 701 | new_vec = Fmake_vector (make_number (ASIZE (vec) + 1), Qnil); |
374bf7e4 KH |
702 | found_index++; |
703 | for (j = 0; j < found_index; j++) | |
581f7ac7 KH |
704 | ASET (new_vec, j, AREF (vec, j)); |
705 | ASET (new_vec, j, rfont_def); | |
706 | for (j++; j < ASIZE (new_vec); j++) | |
707 | ASET (new_vec, j, AREF (vec, j - 1)); | |
162f5458 | 708 | XSETCDR (font_group, new_vec); |
a71ccf3a KH |
709 | vec = new_vec; |
710 | goto found; | |
1d5d7200 | 711 | } |
374bf7e4 KH |
712 | if (i >= 0) |
713 | i = found_index; | |
0d407d77 | 714 | } |
d67f7f1a | 715 | |
581f7ac7 | 716 | FONTSET_SET (fontset, make_number (c), make_number (0)); |
eaa0402c | 717 | return Qnil; |
a71ccf3a KH |
718 | |
719 | found: | |
720 | if (fallback && found_index > 0) | |
721 | { | |
722 | /* The order of fonts in the fallback font-group is not that | |
723 | important, and it is better to move the found font to the | |
724 | first of the group so that the next try will find it | |
725 | quickly. */ | |
726 | for (i = found_index; i > 0; i--) | |
727 | ASET (vec, i, AREF (vec, i - 1)); | |
728 | ASET (vec, 0, rfont_def); | |
729 | } | |
730 | return rfont_def; | |
1c82b4b3 | 731 | } |
0d407d77 | 732 | |
cc7b6145 | 733 | |
1c82b4b3 KH |
734 | static Lisp_Object |
735 | fontset_font (fontset, c, face, id) | |
736 | Lisp_Object fontset; | |
737 | int c; | |
738 | struct face *face; | |
739 | int id; | |
740 | { | |
f084f942 | 741 | Lisp_Object rfont_def, default_rfont_def; |
1c82b4b3 | 742 | Lisp_Object base_fontset; |
cc7b6145 | 743 | |
41ad6003 | 744 | /* Try a font-group of FONTSET. */ |
b23bf85a | 745 | FONT_DEFERRED_LOG ("current fontset: font for", make_number (c), Qnil); |
1c82b4b3 | 746 | rfont_def = fontset_find_font (fontset, c, face, id, 0); |
eaa0402c KH |
747 | if (VECTORP (rfont_def)) |
748 | return rfont_def; | |
f084f942 KH |
749 | if (NILP (rfont_def)) |
750 | FONTSET_SET (fontset, make_number (c), make_number (0)); | |
41ad6003 KH |
751 | |
752 | /* Try a font-group of the default fontset. */ | |
753 | base_fontset = FONTSET_BASE (fontset); | |
754 | if (! EQ (base_fontset, Vdefault_fontset)) | |
755 | { | |
756 | if (NILP (FONTSET_DEFAULT (fontset))) | |
757 | FONTSET_DEFAULT (fontset) | |
758 | = make_fontset (FONTSET_FRAME (fontset), Qnil, Vdefault_fontset); | |
b23bf85a | 759 | FONT_DEFERRED_LOG ("default fontset: font for", make_number (c), Qnil); |
f084f942 KH |
760 | default_rfont_def |
761 | = fontset_find_font (FONTSET_DEFAULT (fontset), c, face, id, 0); | |
762 | if (VECTORP (default_rfont_def)) | |
763 | return default_rfont_def; | |
764 | if (NILP (default_rfont_def)) | |
765 | FONTSET_SET (FONTSET_DEFAULT (fontset), make_number (c), | |
766 | make_number (0)); | |
41ad6003 KH |
767 | } |
768 | ||
769 | /* Try a fallback font-group of FONTSET. */ | |
f084f942 KH |
770 | if (! EQ (rfont_def, Qt)) |
771 | { | |
772 | FONT_DEFERRED_LOG ("current fallback: font for", make_number (c), Qnil); | |
773 | rfont_def = fontset_find_font (fontset, c, face, id, 1); | |
774 | if (VECTORP (rfont_def)) | |
775 | return rfont_def; | |
776 | /* Remember that FONTSET has no font for C. */ | |
777 | FONTSET_SET (fontset, make_number (c), Qt); | |
778 | } | |
d67f7f1a | 779 | |
f084f942 KH |
780 | /* Try a fallback font-group of the default fontset. */ |
781 | if (! EQ (base_fontset, Vdefault_fontset) | |
782 | && ! EQ (default_rfont_def, Qt)) | |
41ad6003 | 783 | { |
b23bf85a | 784 | FONT_DEFERRED_LOG ("default fallback: font for", make_number (c), Qnil); |
41ad6003 KH |
785 | rfont_def = fontset_find_font (FONTSET_DEFAULT (fontset), c, face, id, 1); |
786 | if (VECTORP (rfont_def)) | |
787 | return rfont_def; | |
f084f942 KH |
788 | /* Remember that the default fontset has no font for C. */ |
789 | FONTSET_SET (FONTSET_DEFAULT (fontset), make_number (c), Qt); | |
41ad6003 KH |
790 | } |
791 | ||
41ad6003 | 792 | return Qnil; |
0d407d77 KH |
793 | } |
794 | ||
0d407d77 | 795 | /* Return a newly created fontset with NAME. If BASE is nil, make a |
06f76f0d | 796 | base fontset. Otherwise make a realized fontset whose base is |
0d407d77 KH |
797 | BASE. */ |
798 | ||
799 | static Lisp_Object | |
800 | make_fontset (frame, name, base) | |
801 | Lisp_Object frame, name, base; | |
4ed46869 | 802 | { |
1337ac77 | 803 | Lisp_Object fontset; |
0d407d77 KH |
804 | int size = ASIZE (Vfontset_table); |
805 | int id = next_fontset_id; | |
0d407d77 KH |
806 | |
807 | /* Find a free slot in Vfontset_table. Usually, next_fontset_id is | |
808 | the next available fontset ID. So it is expected that this loop | |
809 | terminates quickly. In addition, as the last element of | |
fc8865fc | 810 | Vfontset_table is always nil, we don't have to check the range of |
0d407d77 KH |
811 | id. */ |
812 | while (!NILP (AREF (Vfontset_table, id))) id++; | |
813 | ||
814 | if (id + 1 == size) | |
63655c83 | 815 | Vfontset_table = larger_vector (Vfontset_table, size + 32, Qnil); |
4ed46869 | 816 | |
11d9bd93 | 817 | fontset = Fmake_char_table (Qfontset, Qnil); |
0d407d77 KH |
818 | |
819 | FONTSET_ID (fontset) = make_number (id); | |
06f76f0d KH |
820 | if (NILP (base)) |
821 | { | |
822 | FONTSET_NAME (fontset) = name; | |
823 | } | |
824 | else | |
825 | { | |
826 | FONTSET_NAME (fontset) = Qnil; | |
827 | FONTSET_FRAME (fontset) = frame; | |
828 | FONTSET_BASE (fontset) = base; | |
829 | } | |
0d407d77 | 830 | |
06f76f0d | 831 | ASET (Vfontset_table, id, fontset); |
0d407d77 KH |
832 | next_fontset_id = id + 1; |
833 | return fontset; | |
4ed46869 KH |
834 | } |
835 | ||
0d407d77 | 836 | \f |
1d5d7200 | 837 | /********** INTERFACES TO xfaces.c, xfns.c, and dispextern.h **********/ |
0d407d77 | 838 | |
1d5d7200 | 839 | /* Return the name of the fontset who has ID. */ |
0d407d77 KH |
840 | |
841 | Lisp_Object | |
842 | fontset_name (id) | |
843 | int id; | |
844 | { | |
845 | Lisp_Object fontset; | |
06f76f0d | 846 | |
0d407d77 KH |
847 | fontset = FONTSET_FROM_ID (id); |
848 | return FONTSET_NAME (fontset); | |
849 | } | |
850 | ||
851 | ||
1d5d7200 | 852 | /* Return the ASCII font name of the fontset who has ID. */ |
0d407d77 KH |
853 | |
854 | Lisp_Object | |
855 | fontset_ascii (id) | |
856 | int id; | |
857 | { | |
858 | Lisp_Object fontset, elt; | |
06f76f0d | 859 | |
0d407d77 KH |
860 | fontset= FONTSET_FROM_ID (id); |
861 | elt = FONTSET_ASCII (fontset); | |
8aa07a8d KH |
862 | if (CONSP (elt)) |
863 | elt = XCAR (elt); | |
1d5d7200 | 864 | return elt; |
0d407d77 KH |
865 | } |
866 | ||
9459b1e9 KH |
867 | void |
868 | free_realized_fontset (f, fontset) | |
869 | FRAME_PTR f; | |
870 | Lisp_Object fontset; | |
871 | { | |
9459b1e9 KH |
872 | Lisp_Object tail; |
873 | ||
874 | return; | |
875 | for (tail = FONTSET_OBJLIST (fontset); CONSP (tail); tail = XCDR (tail)) | |
876 | { | |
877 | xassert (FONT_OBJECT_P (XCAR (tail))); | |
878 | font_close_object (f, XCAR (tail)); | |
879 | } | |
880 | } | |
0d407d77 | 881 | |
06f76f0d KH |
882 | /* Free fontset of FACE defined on frame F. Called from |
883 | free_realized_face. */ | |
0d407d77 | 884 | |
4ed46869 | 885 | void |
0d407d77 KH |
886 | free_face_fontset (f, face) |
887 | FRAME_PTR f; | |
888 | struct face *face; | |
4ed46869 | 889 | { |
452a78e0 KH |
890 | Lisp_Object fontset; |
891 | ||
ff7a2223 | 892 | fontset = FONTSET_FROM_ID (face->fontset); |
581f7ac7 KH |
893 | if (NILP (fontset)) |
894 | return; | |
895 | xassert (! BASE_FONTSET_P (fontset)); | |
452a78e0 | 896 | xassert (f == XFRAME (FONTSET_FRAME (fontset))); |
9459b1e9 | 897 | free_realized_fontset (f, fontset); |
1d5d7200 | 898 | ASET (Vfontset_table, face->fontset, Qnil); |
06f76f0d KH |
899 | if (face->fontset < next_fontset_id) |
900 | next_fontset_id = face->fontset; | |
eb36588a | 901 | if (! NILP (FONTSET_DEFAULT (fontset))) |
452a78e0 | 902 | { |
e1a14cdc | 903 | int id = XINT (FONTSET_ID (FONTSET_DEFAULT (fontset))); |
eb152aa9 | 904 | |
452a78e0 KH |
905 | fontset = AREF (Vfontset_table, id); |
906 | xassert (!NILP (fontset) && ! BASE_FONTSET_P (fontset)); | |
907 | xassert (f == XFRAME (FONTSET_FRAME (fontset))); | |
9459b1e9 | 908 | free_realized_fontset (f, fontset); |
452a78e0 KH |
909 | ASET (Vfontset_table, id, Qnil); |
910 | if (id < next_fontset_id) | |
911 | next_fontset_id = face->fontset; | |
912 | } | |
581f7ac7 | 913 | face->fontset = -1; |
0d407d77 | 914 | } |
18998710 | 915 | |
0d407d77 | 916 | |
e0f24100 | 917 | /* Return 1 if FACE is suitable for displaying character C. |
0d407d77 | 918 | Otherwise return 0. Called from the macro FACE_SUITABLE_FOR_CHAR_P |
06f76f0d | 919 | when C is not an ASCII character. */ |
0d407d77 KH |
920 | |
921 | int | |
922 | face_suitable_for_char_p (face, c) | |
923 | struct face *face; | |
924 | int c; | |
925 | { | |
7e1a1cd9 | 926 | Lisp_Object fontset, rfont_def; |
0d407d77 | 927 | |
0d407d77 | 928 | fontset = FONTSET_FROM_ID (face->fontset); |
7e1a1cd9 KH |
929 | rfont_def = fontset_font (fontset, c, NULL, -1); |
930 | return (VECTORP (rfont_def) | |
581f7ac7 KH |
931 | && INTEGERP (RFONT_DEF_FACE (rfont_def)) |
932 | && face->id == XINT (RFONT_DEF_FACE (rfont_def))); | |
0d407d77 KH |
933 | } |
934 | ||
935 | ||
936 | /* Return ID of face suitable for displaying character C on frame F. | |
1d5d7200 KH |
937 | FACE must be reazlied for ASCII characters in advance. Called from |
938 | the macro FACE_FOR_CHAR. */ | |
0d407d77 KH |
939 | |
940 | int | |
6bad8007 | 941 | face_for_char (f, face, c, pos, object) |
0d407d77 KH |
942 | FRAME_PTR f; |
943 | struct face *face; | |
6bad8007 KH |
944 | int c, pos; |
945 | Lisp_Object object; | |
0d407d77 | 946 | { |
303d5190 | 947 | Lisp_Object fontset, rfont_def, charset; |
7e1a1cd9 | 948 | int face_id; |
6bad8007 | 949 | int id; |
1d5d7200 | 950 | |
ea217c11 KH |
951 | /* If face->fontset is negative (that happens when no font is found |
952 | for face), just return face->ascii_face because we can't do | |
953 | anything. Perhaps, we should fix the callers to assure | |
954 | that face->fontset is always valid. */ | |
955 | if (ASCII_CHAR_P (c) || face->fontset < 0) | |
1d5d7200 | 956 | return face->ascii_face->id; |
0d407d77 KH |
957 | |
958 | xassert (fontset_id_valid_p (face->fontset)); | |
959 | fontset = FONTSET_FROM_ID (face->fontset); | |
960 | xassert (!BASE_FONTSET_P (fontset)); | |
41ad6003 | 961 | |
6bad8007 | 962 | if (pos < 0) |
303d5190 KH |
963 | { |
964 | id = -1; | |
965 | charset = Qnil; | |
966 | } | |
6bad8007 KH |
967 | else |
968 | { | |
969 | charset = Fget_char_property (make_number (pos), Qcharset, object); | |
b1bde622 | 970 | if (CHARSETP (charset)) |
28e2436a KH |
971 | { |
972 | Lisp_Object val; | |
973 | ||
a124bbb6 | 974 | val = assq_no_quit (charset, Vfont_encoding_charset_alist); |
28e2436a KH |
975 | if (CONSP (val) && CHARSETP (XCDR (val))) |
976 | charset = XCDR (val); | |
977 | id = XINT (CHARSET_SYMBOL_ID (charset)); | |
978 | } | |
b1bde622 KH |
979 | else |
980 | id = -1; | |
6bad8007 | 981 | } |
b59e66b3 | 982 | |
7e1a1cd9 KH |
983 | rfont_def = fontset_font (fontset, c, face, id); |
984 | if (VECTORP (rfont_def)) | |
985 | { | |
581f7ac7 KH |
986 | if (INTEGERP (RFONT_DEF_FACE (rfont_def))) |
987 | face_id = XINT (RFONT_DEF_FACE (rfont_def)); | |
8aa07a8d | 988 | else |
7e1a1cd9 | 989 | { |
581f7ac7 | 990 | Lisp_Object font_object; |
7e1a1cd9 | 991 | |
581f7ac7 KH |
992 | font_object = RFONT_DEF_OBJECT (rfont_def); |
993 | face_id = face_for_font (f, font_object, face); | |
994 | RFONT_DEF_SET_FACE (rfont_def, face_id); | |
7e1a1cd9 | 995 | } |
7e1a1cd9 | 996 | } |
581f7ac7 | 997 | else |
7e1a1cd9 | 998 | { |
581f7ac7 KH |
999 | if (INTEGERP (FONTSET_NOFONT_FACE (fontset))) |
1000 | face_id = XINT (FONTSET_NOFONT_FACE (fontset)); | |
1001 | else | |
1002 | { | |
1003 | face_id = face_for_font (f, Qnil, face); | |
1004 | FONTSET_NOFONT_FACE (fontset) = make_number (face_id); | |
1005 | } | |
7e1a1cd9 | 1006 | } |
581f7ac7 KH |
1007 | xassert (face_id >= 0); |
1008 | return face_id; | |
0d407d77 KH |
1009 | } |
1010 | ||
1011 | ||
514cf218 KH |
1012 | Lisp_Object |
1013 | font_for_char (face, c, pos, object) | |
1014 | struct face *face; | |
1015 | int c, pos; | |
1016 | Lisp_Object object; | |
1017 | { | |
1018 | Lisp_Object fontset, rfont_def, charset; | |
514cf218 KH |
1019 | int id; |
1020 | ||
1021 | if (ASCII_CHAR_P (c)) | |
1022 | { | |
1023 | Lisp_Object font_object; | |
1024 | ||
1025 | XSETFONT (font_object, face->ascii_face->font); | |
1026 | return font_object; | |
1027 | } | |
1028 | ||
1029 | xassert (fontset_id_valid_p (face->fontset)); | |
1030 | fontset = FONTSET_FROM_ID (face->fontset); | |
1031 | xassert (!BASE_FONTSET_P (fontset)); | |
1032 | if (pos < 0) | |
1033 | { | |
1034 | id = -1; | |
1035 | charset = Qnil; | |
1036 | } | |
1037 | else | |
1038 | { | |
1039 | charset = Fget_char_property (make_number (pos), Qcharset, object); | |
b1bde622 | 1040 | if (CHARSETP (charset)) |
514cf218 KH |
1041 | { |
1042 | Lisp_Object val; | |
1043 | ||
9fe78804 | 1044 | val = assq_no_quit (charset, Vfont_encoding_charset_alist); |
514cf218 KH |
1045 | if (CONSP (val) && CHARSETP (XCDR (val))) |
1046 | charset = XCDR (val); | |
1047 | id = XINT (CHARSET_SYMBOL_ID (charset)); | |
1048 | } | |
b1bde622 KH |
1049 | else |
1050 | id = -1; | |
514cf218 KH |
1051 | } |
1052 | ||
514cf218 KH |
1053 | rfont_def = fontset_font (fontset, c, face, id); |
1054 | return (VECTORP (rfont_def) | |
1055 | ? RFONT_DEF_OBJECT (rfont_def) | |
1056 | : Qnil); | |
1057 | } | |
1058 | ||
1059 | ||
0d407d77 KH |
1060 | /* Make a realized fontset for ASCII face FACE on frame F from the |
1061 | base fontset BASE_FONTSET_ID. If BASE_FONTSET_ID is -1, use the | |
1062 | default fontset as the base. Value is the id of the new fontset. | |
1063 | Called from realize_x_face. */ | |
1064 | ||
1065 | int | |
1d5d7200 | 1066 | make_fontset_for_ascii_face (f, base_fontset_id, face) |
0d407d77 KH |
1067 | FRAME_PTR f; |
1068 | int base_fontset_id; | |
1d5d7200 | 1069 | struct face *face; |
0d407d77 | 1070 | { |
1337ac77 | 1071 | Lisp_Object base_fontset, fontset, frame; |
0d407d77 KH |
1072 | |
1073 | XSETFRAME (frame, f); | |
1074 | if (base_fontset_id >= 0) | |
1075 | { | |
1076 | base_fontset = FONTSET_FROM_ID (base_fontset_id); | |
1077 | if (!BASE_FONTSET_P (base_fontset)) | |
1078 | base_fontset = FONTSET_BASE (base_fontset); | |
1d5d7200 KH |
1079 | if (! BASE_FONTSET_P (base_fontset)) |
1080 | abort (); | |
4ed46869 | 1081 | } |
0d407d77 KH |
1082 | else |
1083 | base_fontset = Vdefault_fontset; | |
1084 | ||
1085 | fontset = make_fontset (frame, Qnil, base_fontset); | |
f3231837 | 1086 | return XINT (FONTSET_ID (fontset)); |
0d407d77 KH |
1087 | } |
1088 | ||
0d407d77 | 1089 | \f |
1d5d7200 | 1090 | |
4ed46869 KH |
1091 | /* Cache data used by fontset_pattern_regexp. The car part is a |
1092 | pattern string containing at least one wild card, the cdr part is | |
1093 | the corresponding regular expression. */ | |
1094 | static Lisp_Object Vcached_fontset_data; | |
1095 | ||
dbf46ba6 | 1096 | #define CACHED_FONTSET_NAME ((char *) SDATA (XCAR (Vcached_fontset_data))) |
7539e11f | 1097 | #define CACHED_FONTSET_REGEX (XCDR (Vcached_fontset_data)) |
4ed46869 KH |
1098 | |
1099 | /* If fontset name PATTERN contains any wild card, return regular | |
1100 | expression corresponding to PATTERN. */ | |
1101 | ||
0d407d77 | 1102 | static Lisp_Object |
4ed46869 KH |
1103 | fontset_pattern_regexp (pattern) |
1104 | Lisp_Object pattern; | |
1105 | { | |
dbf46ba6 KH |
1106 | if (!index ((char *) SDATA (pattern), '*') |
1107 | && !index ((char *) SDATA (pattern), '?')) | |
4ed46869 | 1108 | /* PATTERN does not contain any wild cards. */ |
1c283e35 | 1109 | return Qnil; |
4ed46869 KH |
1110 | |
1111 | if (!CONSP (Vcached_fontset_data) | |
dbf46ba6 | 1112 | || strcmp ((char *) SDATA (pattern), CACHED_FONTSET_NAME)) |
4ed46869 KH |
1113 | { |
1114 | /* We must at first update the cached data. */ | |
6cc06608 | 1115 | unsigned char *regex, *p0, *p1; |
821bc4db | 1116 | int ndashes = 0, nstars = 0, nescs = 0; |
6cc06608 | 1117 | |
fc1062f5 KH |
1118 | for (p0 = SDATA (pattern); *p0; p0++) |
1119 | { | |
1120 | if (*p0 == '-') | |
1121 | ndashes++; | |
a653f812 | 1122 | else if (*p0 == '*') |
fc1062f5 | 1123 | nstars++; |
821bc4db KH |
1124 | else if (*p0 == '[' |
1125 | || *p0 == '.' || *p0 == '\\' | |
8510724d | 1126 | || *p0 == '+' || *p0 == '^' |
821bc4db KH |
1127 | || *p0 == '$') |
1128 | nescs++; | |
fc1062f5 KH |
1129 | } |
1130 | ||
1131 | /* If PATTERN is not full XLFD we conert "*" to ".*". Otherwise | |
1132 | we convert "*" to "[^-]*" which is much faster in regular | |
1133 | expression matching. */ | |
1134 | if (ndashes < 14) | |
821bc4db | 1135 | p1 = regex = (unsigned char *) alloca (SBYTES (pattern) + 2 * nstars + 2 * nescs + 1); |
fc1062f5 | 1136 | else |
821bc4db | 1137 | p1 = regex = (unsigned char *) alloca (SBYTES (pattern) + 5 * nstars + 2 * nescs + 1); |
4ed46869 | 1138 | |
1c283e35 | 1139 | *p1++ = '^'; |
6cc06608 | 1140 | for (p0 = SDATA (pattern); *p0; p0++) |
4ed46869 | 1141 | { |
a653f812 | 1142 | if (*p0 == '*') |
4ed46869 | 1143 | { |
fc1062f5 KH |
1144 | if (ndashes < 14) |
1145 | *p1++ = '.'; | |
1146 | else | |
1147 | *p1++ = '[', *p1++ = '^', *p1++ = '-', *p1++ = ']'; | |
1c283e35 | 1148 | *p1++ = '*'; |
4ed46869 | 1149 | } |
1c283e35 | 1150 | else if (*p0 == '?') |
d96d677d | 1151 | *p1++ = '.'; |
821bc4db KH |
1152 | else if (*p0 == '[' |
1153 | || *p0 == '.' || *p0 == '\\' | |
8510724d | 1154 | || *p0 == '+' || *p0 == '^' |
821bc4db KH |
1155 | || *p0 == '$') |
1156 | *p1++ = '\\', *p1++ = *p0; | |
1c283e35 KH |
1157 | else |
1158 | *p1++ = *p0; | |
4ed46869 KH |
1159 | } |
1160 | *p1++ = '$'; | |
1161 | *p1++ = 0; | |
1162 | ||
dbf46ba6 KH |
1163 | Vcached_fontset_data = Fcons (build_string ((char *) SDATA (pattern)), |
1164 | build_string ((char *) regex)); | |
4ed46869 KH |
1165 | } |
1166 | ||
1167 | return CACHED_FONTSET_REGEX; | |
1168 | } | |
1169 | ||
0d407d77 | 1170 | /* Return ID of the base fontset named NAME. If there's no such |
a653f812 KH |
1171 | fontset, return -1. NAME_PATTERN specifies how to treat NAME as this: |
1172 | 0: pattern containing '*' and '?' as wildcards | |
1173 | 1: regular expression | |
1174 | 2: literal fontset name | |
1175 | */ | |
0d407d77 KH |
1176 | |
1177 | int | |
a653f812 | 1178 | fs_query_fontset (name, name_pattern) |
0d407d77 | 1179 | Lisp_Object name; |
a653f812 | 1180 | int name_pattern; |
0d407d77 | 1181 | { |
1337ac77 | 1182 | Lisp_Object tem; |
0d407d77 KH |
1183 | int i; |
1184 | ||
1185 | name = Fdowncase (name); | |
a653f812 | 1186 | if (name_pattern != 1) |
0d407d77 KH |
1187 | { |
1188 | tem = Frassoc (name, Vfontset_alias_alist); | |
6bad8007 KH |
1189 | if (NILP (tem)) |
1190 | tem = Fassoc (name, Vfontset_alias_alist); | |
0d407d77 KH |
1191 | if (CONSP (tem) && STRINGP (XCAR (tem))) |
1192 | name = XCAR (tem); | |
a653f812 | 1193 | else if (name_pattern == 0) |
0d407d77 KH |
1194 | { |
1195 | tem = fontset_pattern_regexp (name); | |
1196 | if (STRINGP (tem)) | |
1197 | { | |
1198 | name = tem; | |
a653f812 | 1199 | name_pattern = 1; |
0d407d77 KH |
1200 | } |
1201 | } | |
1202 | } | |
1203 | ||
1204 | for (i = 0; i < ASIZE (Vfontset_table); i++) | |
1205 | { | |
6e1b0d8c | 1206 | Lisp_Object fontset, this_name; |
0d407d77 KH |
1207 | |
1208 | fontset = FONTSET_FROM_ID (i); | |
1209 | if (NILP (fontset) | |
1210 | || !BASE_FONTSET_P (fontset)) | |
1211 | continue; | |
1212 | ||
6e1b0d8c | 1213 | this_name = FONTSET_NAME (fontset); |
a653f812 | 1214 | if (name_pattern == 1 |
581f7ac7 | 1215 | ? fast_string_match_ignore_case (name, this_name) >= 0 |
05131107 | 1216 | : !xstrcasecmp (SDATA (name), SDATA (this_name))) |
0d407d77 KH |
1217 | return i; |
1218 | } | |
1219 | return -1; | |
1220 | } | |
1221 | ||
1222 | ||
727fb790 | 1223 | DEFUN ("query-fontset", Fquery_fontset, Squery_fontset, 1, 2, 0, |
335c5470 PJ |
1224 | doc: /* Return the name of a fontset that matches PATTERN. |
1225 | The value is nil if there is no matching fontset. | |
1226 | PATTERN can contain `*' or `?' as a wildcard | |
1227 | just as X font name matching algorithm allows. | |
1228 | If REGEXPP is non-nil, PATTERN is a regular expression. */) | |
1229 | (pattern, regexpp) | |
727fb790 | 1230 | Lisp_Object pattern, regexpp; |
4ed46869 | 1231 | { |
0d407d77 KH |
1232 | Lisp_Object fontset; |
1233 | int id; | |
4ed46869 KH |
1234 | |
1235 | (*check_window_system_func) (); | |
1236 | ||
b7826503 | 1237 | CHECK_STRING (pattern); |
4ed46869 | 1238 | |
d5db4077 | 1239 | if (SCHARS (pattern) == 0) |
4ed46869 KH |
1240 | return Qnil; |
1241 | ||
0d407d77 KH |
1242 | id = fs_query_fontset (pattern, !NILP (regexpp)); |
1243 | if (id < 0) | |
1244 | return Qnil; | |
4ed46869 | 1245 | |
0d407d77 KH |
1246 | fontset = FONTSET_FROM_ID (id); |
1247 | return FONTSET_NAME (fontset); | |
4ed46869 KH |
1248 | } |
1249 | ||
06f76f0d | 1250 | /* Return a list of base fontset names matching PATTERN on frame F. */ |
4ed46869 KH |
1251 | |
1252 | Lisp_Object | |
1253 | list_fontsets (f, pattern, size) | |
1254 | FRAME_PTR f; | |
1255 | Lisp_Object pattern; | |
1256 | int size; | |
1257 | { | |
1337ac77 | 1258 | Lisp_Object frame, regexp, val; |
0d407d77 | 1259 | int id; |
4ed46869 | 1260 | |
0d407d77 | 1261 | XSETFRAME (frame, f); |
4ed46869 | 1262 | |
0d407d77 | 1263 | regexp = fontset_pattern_regexp (pattern); |
4ed46869 | 1264 | val = Qnil; |
4ed46869 | 1265 | |
0d407d77 KH |
1266 | for (id = 0; id < ASIZE (Vfontset_table); id++) |
1267 | { | |
6e1b0d8c | 1268 | Lisp_Object fontset, name; |
0d407d77 KH |
1269 | |
1270 | fontset = FONTSET_FROM_ID (id); | |
1271 | if (NILP (fontset) | |
1272 | || !BASE_FONTSET_P (fontset) | |
1273 | || !EQ (frame, FONTSET_FRAME (fontset))) | |
1274 | continue; | |
6e1b0d8c | 1275 | name = FONTSET_NAME (fontset); |
0d407d77 | 1276 | |
1d5d7200 | 1277 | if (STRINGP (regexp) |
6e1b0d8c | 1278 | ? (fast_string_match (regexp, name) < 0) |
dbf46ba6 | 1279 | : strcmp ((char *) SDATA (pattern), (char *) SDATA (name))) |
0d407d77 KH |
1280 | continue; |
1281 | ||
0d407d77 | 1282 | val = Fcons (Fcopy_sequence (FONTSET_NAME (fontset)), val); |
4ed46869 KH |
1283 | } |
1284 | ||
1285 | return val; | |
1286 | } | |
1287 | ||
4ed46869 | 1288 | |
8f924df7 | 1289 | /* Free all realized fontsets whose base fontset is BASE. */ |
4ed46869 | 1290 | |
06f76f0d KH |
1291 | static void |
1292 | free_realized_fontsets (base) | |
1293 | Lisp_Object base; | |
1294 | { | |
1295 | int id; | |
4ed46869 | 1296 | |
2f034212 | 1297 | #if 0 |
27e20b2f KH |
1298 | /* For the moment, this doesn't work because free_realized_face |
1299 | doesn't remove FACE from a cache. Until we find a solution, we | |
1300 | suppress this code, and simply use Fclear_face_cache even though | |
1301 | that is not efficient. */ | |
06f76f0d KH |
1302 | BLOCK_INPUT; |
1303 | for (id = 0; id < ASIZE (Vfontset_table); id++) | |
4ed46869 | 1304 | { |
06f76f0d | 1305 | Lisp_Object this = AREF (Vfontset_table, id); |
0d407d77 | 1306 | |
06f76f0d | 1307 | if (EQ (FONTSET_BASE (this), base)) |
0d407d77 | 1308 | { |
06f76f0d | 1309 | Lisp_Object tail; |
4ed46869 | 1310 | |
06f76f0d KH |
1311 | for (tail = FONTSET_FACE_ALIST (this); CONSP (tail); |
1312 | tail = XCDR (tail)) | |
1313 | { | |
1314 | FRAME_PTR f = XFRAME (FONTSET_FRAME (this)); | |
1315 | int face_id = XINT (XCDR (XCAR (tail))); | |
1316 | struct face *face = FACE_FROM_ID (f, face_id); | |
4ed46869 | 1317 | |
06f76f0d KH |
1318 | /* Face THIS itself is also freed by the following call. */ |
1319 | free_realized_face (f, face); | |
1320 | } | |
1321 | } | |
0d407d77 | 1322 | } |
06f76f0d | 1323 | UNBLOCK_INPUT; |
27e20b2f | 1324 | #else /* not 0 */ |
2f034212 KH |
1325 | /* But, we don't have to call Fclear_face_cache if no fontset has |
1326 | been realized from BASE. */ | |
1327 | for (id = 0; id < ASIZE (Vfontset_table); id++) | |
1328 | { | |
1329 | Lisp_Object this = AREF (Vfontset_table, id); | |
1330 | ||
985773c9 | 1331 | if (CHAR_TABLE_P (this) && EQ (FONTSET_BASE (this), base)) |
2f034212 KH |
1332 | { |
1333 | Fclear_face_cache (Qt); | |
1334 | break; | |
1335 | } | |
1336 | } | |
27e20b2f | 1337 | #endif /* not 0 */ |
0d407d77 | 1338 | } |
4ed46869 | 1339 | |
4ed46869 | 1340 | |
0d407d77 KH |
1341 | /* Check validity of NAME as a fontset name and return the |
1342 | corresponding fontset. If not valid, signal an error. | |
a3d16f39 KH |
1343 | |
1344 | If NAME is t, return Vdefault_fontset. If NAME is nil, return the | |
1345 | fontset of *FRAME. | |
1346 | ||
1347 | Set *FRAME to the actual frame. */ | |
0d407d77 KH |
1348 | |
1349 | static Lisp_Object | |
a3d16f39 KH |
1350 | check_fontset_name (name, frame) |
1351 | Lisp_Object name, *frame; | |
0d407d77 KH |
1352 | { |
1353 | int id; | |
1354 | ||
a3d16f39 KH |
1355 | if (NILP (*frame)) |
1356 | *frame = selected_frame; | |
1357 | CHECK_LIVE_FRAME (*frame); | |
1358 | ||
0d407d77 KH |
1359 | if (EQ (name, Qt)) |
1360 | return Vdefault_fontset; | |
a3d16f39 KH |
1361 | if (NILP (name)) |
1362 | { | |
1363 | id = FRAME_FONTSET (XFRAME (*frame)); | |
1364 | } | |
1365 | else | |
1366 | { | |
1367 | CHECK_STRING (name); | |
1368 | /* First try NAME as literal. */ | |
1369 | id = fs_query_fontset (name, 2); | |
1370 | if (id < 0) | |
1371 | /* For backward compatibility, try again NAME as pattern. */ | |
1372 | id = fs_query_fontset (name, 0); | |
1373 | if (id < 0) | |
1374 | error ("Fontset `%s' does not exist", SDATA (name)); | |
1375 | } | |
0d407d77 KH |
1376 | return FONTSET_FROM_ID (id); |
1377 | } | |
4ed46869 | 1378 | |
1d5d7200 KH |
1379 | static void |
1380 | accumulate_script_ranges (arg, range, val) | |
1381 | Lisp_Object arg, range, val; | |
1382 | { | |
1383 | if (EQ (XCAR (arg), val)) | |
1384 | { | |
1385 | if (CONSP (range)) | |
1386 | XSETCDR (arg, Fcons (Fcons (XCAR (range), XCDR (range)), XCDR (arg))); | |
1387 | else | |
1388 | XSETCDR (arg, Fcons (Fcons (range, range), XCDR (arg))); | |
1389 | } | |
1390 | } | |
1391 | ||
1392 | ||
a3d16f39 KH |
1393 | /* Callback function for map_charset_chars in Fset_fontset_font. |
1394 | ARG is a vector [ FONTSET FONT_DEF ADD ASCII SCRIPT_RANGE_LIST ]. | |
fb78e2ed | 1395 | |
a3d16f39 KH |
1396 | In FONTSET, set FONT_DEF in a fashion specified by ADD for |
1397 | characters in RANGE and ranges in SCRIPT_RANGE_LIST before RANGE. | |
1398 | The consumed ranges are poped up from SCRIPT_RANGE_LIST, and the | |
1399 | new SCRIPT_RANGE_LIST is stored in ARG. | |
1400 | ||
1401 | If ASCII is nil, don't set FONT_DEF for ASCII characters. It is | |
1402 | assured that SCRIPT_RANGE_LIST doesn't contain ASCII in that | |
1403 | case. */ | |
fb78e2ed | 1404 | |
2449d4d0 | 1405 | static void |
a3d16f39 KH |
1406 | set_fontset_font (arg, range) |
1407 | Lisp_Object arg, range; | |
2449d4d0 | 1408 | { |
a3d16f39 KH |
1409 | Lisp_Object fontset, font_def, add, ascii, script_range_list; |
1410 | int from = XINT (XCAR (range)), to = XINT (XCDR (range)); | |
2449d4d0 | 1411 | |
a3d16f39 KH |
1412 | fontset = AREF (arg, 0); |
1413 | font_def = AREF (arg, 1); | |
1414 | add = AREF (arg, 2); | |
1415 | ascii = AREF (arg, 3); | |
1416 | script_range_list = AREF (arg, 4); | |
fb78e2ed | 1417 | |
a3d16f39 KH |
1418 | if (NILP (ascii) && from < 0x80) |
1419 | { | |
1420 | if (to < 0x80) | |
fb78e2ed | 1421 | return; |
a3d16f39 KH |
1422 | from = 0x80; |
1423 | range = Fcons (make_number (0x80), XCDR (range)); | |
1424 | } | |
1425 | ||
1426 | #define SCRIPT_FROM XINT (XCAR (XCAR (script_range_list))) | |
1427 | #define SCRIPT_TO XINT (XCDR (XCAR (script_range_list))) | |
1428 | #define POP_SCRIPT_RANGE() script_range_list = XCDR (script_range_list) | |
1429 | ||
1430 | for (; CONSP (script_range_list) && SCRIPT_TO < from; POP_SCRIPT_RANGE ()) | |
1431 | FONTSET_ADD (fontset, XCAR (script_range_list), font_def, add); | |
1432 | if (CONSP (script_range_list)) | |
1433 | { | |
1434 | if (SCRIPT_FROM < from) | |
1435 | range = Fcons (make_number (SCRIPT_FROM), XCDR (range)); | |
1436 | while (CONSP (script_range_list) && SCRIPT_TO <= to) | |
1437 | POP_SCRIPT_RANGE (); | |
1438 | if (CONSP (script_range_list) && SCRIPT_FROM <= to) | |
1439 | XSETCAR (XCAR (script_range_list), make_number (to + 1)); | |
fb78e2ed | 1440 | } |
a3d16f39 KH |
1441 | |
1442 | FONTSET_ADD (fontset, range, font_def, add); | |
1443 | ASET (arg, 4, script_range_list); | |
2449d4d0 KH |
1444 | } |
1445 | ||
8b67c40a | 1446 | extern Lisp_Object QCfamily, QCregistry; |
d6490542 KH |
1447 | static void update_auto_fontset_alist P_ ((Lisp_Object, Lisp_Object)); |
1448 | ||
d6aaac9e | 1449 | |
1d5d7200 | 1450 | DEFUN ("set-fontset-font", Fset_fontset_font, Sset_fontset_font, 3, 5, 0, |
8f924df7 | 1451 | doc: /* |
eb36588a | 1452 | Modify fontset NAME to use FONT-SPEC for TARGET characters. |
335c5470 | 1453 | |
a3d16f39 KH |
1454 | NAME is a fontset name string, nil for the fontset of FRAME, or t for |
1455 | the default fontset. | |
1456 | ||
eb36588a KH |
1457 | TARGET may be a cons; (FROM . TO), where FROM and TO are characters. |
1458 | In that case, use FONT-SPEC for all characters in the range FROM and | |
1459 | TO (inclusive). | |
06f76f0d | 1460 | |
eb36588a KH |
1461 | TARGET may be a script name symbol. In that case, use FONT-SPEC for |
1462 | all characters that belong to the script. | |
06f76f0d | 1463 | |
eb36588a | 1464 | TARGET may be a charset. In that case, use FONT-SPEC for all |
95318a38 | 1465 | characters in the charset. |
1d5d7200 | 1466 | |
eb36588a KH |
1467 | TARGET may be nil. In that case, use FONT-SPEC for any characters for |
1468 | that no FONT-SPEC is specified. | |
1469 | ||
0fdf26e6 | 1470 | FONT-SPEC may one of these: |
581f7ac7 | 1471 | * A font-spec object made by the function `font-spec' (which see). |
3dcd48dd | 1472 | * A cons (FAMILY . REGISTRY), where FAMILY is a font family name and |
581f7ac7 KH |
1473 | REGISTRY is a font registry name. FAMILY may contain foundry |
1474 | name, and REGISTRY may contain encoding name. | |
00c4da0f | 1475 | * A font name string. |
eaa0402c | 1476 | * nil, which explicitly specifies that there's no font for TARGET. |
1d5d7200 | 1477 | |
a3d16f39 KH |
1478 | Optional 4th argument FRAME is a frame or nil for the selected frame |
1479 | that is concerned in the case that NAME is nil. | |
1d5d7200 KH |
1480 | |
1481 | Optional 5th argument ADD, if non-nil, specifies how to add FONT-SPEC | |
eb36588a | 1482 | to the font specifications for TARGET previously set. If it is |
1d5d7200 KH |
1483 | `prepend', FONT-SPEC is prepended. If it is `append', FONT-SPEC is |
1484 | appended. By default, FONT-SPEC overrides the previous settings. */) | |
eb36588a KH |
1485 | (name, target, font_spec, frame, add) |
1486 | Lisp_Object name, target, font_spec, frame, add; | |
0d407d77 | 1487 | { |
06f76f0d | 1488 | Lisp_Object fontset; |
9683749a | 1489 | Lisp_Object font_def, registry, family; |
1d5d7200 | 1490 | Lisp_Object range_list; |
fb78e2ed | 1491 | struct charset *charset = NULL; |
d6490542 KH |
1492 | Lisp_Object fontname; |
1493 | int ascii_changed = 0; | |
0d407d77 | 1494 | |
a3d16f39 | 1495 | fontset = check_fontset_name (name, &frame); |
1d5d7200 | 1496 | |
d6490542 | 1497 | fontname = Qnil; |
581f7ac7 | 1498 | if (CONSP (font_spec)) |
0d407d77 | 1499 | { |
581f7ac7 | 1500 | Lisp_Object spec = Ffont_spec (0, NULL); |
1d5d7200 | 1501 | |
581f7ac7 KH |
1502 | font_parse_family_registry (XCAR (font_spec), XCDR (font_spec), spec); |
1503 | font_spec = spec; | |
d6490542 | 1504 | fontname = Ffont_xlfd_name (font_spec, Qnil); |
0890801b | 1505 | } |
d67f7f1a | 1506 | else if (STRINGP (font_spec)) |
4ed46869 | 1507 | { |
ea0162a6 | 1508 | Lisp_Object args[2]; |
581f7ac7 | 1509 | extern Lisp_Object QCname; |
ea0162a6 | 1510 | |
d6490542 | 1511 | fontname = font_spec; |
ea0162a6 KH |
1512 | args[0] = QCname; |
1513 | args[1] = font_spec; | |
1514 | font_spec = Ffont_spec (2, args); | |
0d407d77 | 1515 | } |
d6490542 KH |
1516 | else if (FONT_SPEC_P (font_spec)) |
1517 | fontname = Ffont_xlfd_name (font_spec, Qnil); | |
1518 | else if (! NILP (font_spec)) | |
581f7ac7 | 1519 | Fsignal (Qfont, list2 (build_string ("Invalid font-spec"), font_spec)); |
1d5d7200 | 1520 | |
d67f7f1a | 1521 | if (! NILP (font_spec)) |
57e13af9 | 1522 | { |
581f7ac7 KH |
1523 | Lisp_Object encoding, repertory; |
1524 | ||
d67f7f1a | 1525 | family = AREF (font_spec, FONT_FAMILY_INDEX); |
581f7ac7 | 1526 | if (! NILP (family) ) |
d67f7f1a KH |
1527 | family = SYMBOL_NAME (family); |
1528 | registry = AREF (font_spec, FONT_REGISTRY_INDEX); | |
581f7ac7 KH |
1529 | if (! NILP (registry)) |
1530 | registry = Fdowncase (SYMBOL_NAME (registry)); | |
1531 | encoding = find_font_encoding (concat3 (family, build_string ("-"), | |
1532 | registry)); | |
d67f7f1a KH |
1533 | if (NILP (encoding)) |
1534 | encoding = Qascii; | |
1535 | ||
1536 | if (SYMBOLP (encoding)) | |
1537 | { | |
1538 | CHECK_CHARSET (encoding); | |
1539 | encoding = repertory = CHARSET_SYMBOL_ID (encoding); | |
1540 | } | |
1541 | else | |
57e13af9 | 1542 | { |
d67f7f1a KH |
1543 | repertory = XCDR (encoding); |
1544 | encoding = XCAR (encoding); | |
1545 | CHECK_CHARSET (encoding); | |
1546 | encoding = CHARSET_SYMBOL_ID (encoding); | |
1547 | if (! NILP (repertory) && SYMBOLP (repertory)) | |
1548 | { | |
1549 | CHECK_CHARSET (repertory); | |
1550 | repertory = CHARSET_SYMBOL_ID (repertory); | |
1551 | } | |
57e13af9 | 1552 | } |
581f7ac7 | 1553 | FONT_DEF_NEW (font_def, font_spec, encoding, repertory); |
0d407d77 | 1554 | } |
d67f7f1a KH |
1555 | else |
1556 | font_def = Qnil; | |
4ed46869 | 1557 | |
eb36588a | 1558 | if (CHARACTERP (target)) |
d6490542 KH |
1559 | { |
1560 | if (XFASTINT (target) < 0x80) | |
d7a39b51 | 1561 | error ("Can't set a font for partial ASCII range"); |
d6490542 KH |
1562 | range_list = Fcons (Fcons (target, target), Qnil); |
1563 | } | |
eb36588a | 1564 | else if (CONSP (target)) |
0d407d77 | 1565 | { |
06f76f0d KH |
1566 | Lisp_Object from, to; |
1567 | ||
eb36588a KH |
1568 | from = Fcar (target); |
1569 | to = Fcdr (target); | |
06f76f0d KH |
1570 | CHECK_CHARACTER (from); |
1571 | CHECK_CHARACTER (to); | |
d6490542 KH |
1572 | if (XFASTINT (from) < 0x80) |
1573 | { | |
1574 | if (XFASTINT (from) != 0 || XFASTINT (to) < 0x7F) | |
d7a39b51 | 1575 | error ("Can't set a font for partial ASCII range"); |
d6490542 KH |
1576 | ascii_changed = 1; |
1577 | } | |
eb36588a | 1578 | range_list = Fcons (target, Qnil); |
4ed46869 | 1579 | } |
eb36588a | 1580 | else if (SYMBOLP (target) && !NILP (target)) |
8a9be3ac | 1581 | { |
1d5d7200 KH |
1582 | Lisp_Object script_list; |
1583 | Lisp_Object val; | |
0d407d77 | 1584 | |
1d5d7200 KH |
1585 | range_list = Qnil; |
1586 | script_list = XCHAR_TABLE (Vchar_script_table)->extras[0]; | |
eb36588a | 1587 | if (! NILP (Fmemq (target, script_list))) |
afe93d01 | 1588 | { |
d6490542 KH |
1589 | if (EQ (target, Qlatin)) |
1590 | ascii_changed = 1; | |
eb36588a | 1591 | val = Fcons (target, Qnil); |
1d5d7200 | 1592 | map_char_table (accumulate_script_ranges, Qnil, Vchar_script_table, |
8f924df7 | 1593 | val); |
a3d16f39 | 1594 | range_list = Fnreverse (XCDR (val)); |
afe93d01 | 1595 | } |
fb78e2ed | 1596 | if (CHARSETP (target)) |
afe93d01 | 1597 | { |
d6490542 KH |
1598 | CHECK_CHARSET_GET_CHARSET (target, charset); |
1599 | if (charset->ascii_compatible_p) | |
1600 | ascii_changed = 1; | |
afe93d01 | 1601 | } |
fb78e2ed | 1602 | else if (NILP (range_list)) |
1d5d7200 | 1603 | error ("Invalid script or charset name: %s", |
eb36588a | 1604 | SDATA (SYMBOL_NAME (target))); |
8a9be3ac | 1605 | } |
eb36588a KH |
1606 | else if (NILP (target)) |
1607 | range_list = Fcons (Qnil, Qnil); | |
1608 | else | |
1609 | error ("Invalid target for setting a font"); | |
0d407d77 | 1610 | |
a3d16f39 KH |
1611 | if (ascii_changed) |
1612 | { | |
1613 | Lisp_Object val; | |
1614 | ||
1615 | if (NILP (font_spec)) | |
1616 | error ("Can't set ASCII font to nil"); | |
1617 | val = CHAR_TABLE_REF (fontset, 0); | |
1618 | if (! NILP (val) && EQ (add, Qappend)) | |
1619 | /* We are going to change just an additional font for ASCII. */ | |
1620 | ascii_changed = 0; | |
1621 | } | |
fb78e2ed KH |
1622 | |
1623 | if (charset) | |
1624 | { | |
a3d16f39 KH |
1625 | Lisp_Object arg; |
1626 | ||
1627 | arg = Fmake_vector (make_number (5), Qnil); | |
1628 | ASET (arg, 0, fontset); | |
1629 | ASET (arg, 1, font_def); | |
1630 | ASET (arg, 2, add); | |
1631 | ASET (arg, 3, ascii_changed ? Qt : Qnil); | |
1632 | ASET (arg, 4, range_list); | |
fb78e2ed | 1633 | |
a3d16f39 | 1634 | map_charset_chars (set_fontset_font, Qnil, arg, charset, |
fb78e2ed KH |
1635 | CHARSET_MIN_CODE (charset), |
1636 | CHARSET_MAX_CODE (charset)); | |
a3d16f39 | 1637 | range_list = AREF (arg, 4); |
fb78e2ed | 1638 | } |
1d5d7200 KH |
1639 | for (; CONSP (range_list); range_list = XCDR (range_list)) |
1640 | FONTSET_ADD (fontset, XCAR (range_list), font_def, add); | |
4ed46869 | 1641 | |
d6490542 KH |
1642 | if (ascii_changed) |
1643 | { | |
1644 | Lisp_Object tail, frame, alist; | |
1645 | int fontset_id = XINT (FONTSET_ID (fontset)); | |
1646 | ||
d6490542 KH |
1647 | FONTSET_ASCII (fontset) = fontname; |
1648 | name = FONTSET_NAME (fontset); | |
1649 | FOR_EACH_FRAME (tail, frame) | |
1650 | { | |
1651 | FRAME_PTR f = XFRAME (frame); | |
1652 | Lisp_Object font_object; | |
0875632e | 1653 | struct face *face; |
d6490542 | 1654 | |
0875632e | 1655 | if (FRAME_INITIAL_P (f) || FRAME_TERMCAP_P (f)) |
d6490542 KH |
1656 | continue; |
1657 | if (fontset_id != FRAME_FONTSET (f)) | |
1658 | continue; | |
0875632e KH |
1659 | face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
1660 | if (face) | |
1661 | font_object = font_load_for_lface (f, face->lface, font_spec); | |
1662 | else | |
1663 | font_object = font_open_by_spec (f, font_spec); | |
d6490542 KH |
1664 | if (! NILP (font_object)) |
1665 | { | |
1666 | update_auto_fontset_alist (font_object, fontset); | |
0875632e | 1667 | alist = Fcons (Fcons (Qfont, Fcons (name, font_object)), Qnil); |
d6490542 KH |
1668 | Fmodify_frame_parameters (frame, alist); |
1669 | } | |
1670 | } | |
1671 | } | |
1672 | ||
0875632e KH |
1673 | /* Free all realized fontsets whose base is FONTSET. This way, the |
1674 | specified character(s) are surely redisplayed by a correct | |
1675 | font. */ | |
1676 | free_realized_fontsets (fontset); | |
1677 | ||
4ed46869 KH |
1678 | return Qnil; |
1679 | } | |
1680 | ||
06f76f0d KH |
1681 | |
1682 | DEFUN ("new-fontset", Fnew_fontset, Snew_fontset, 2, 2, 0, | |
1683 | doc: /* Create a new fontset NAME from font information in FONTLIST. | |
1684 | ||
1d5d7200 | 1685 | FONTLIST is an alist of scripts vs the corresponding font specification list. |
d6aaac9e KH |
1686 | Each element of FONTLIST has the form (SCRIPT FONT-SPEC ...), where a |
1687 | character of SCRIPT is displayed by a font that matches one of | |
1688 | FONT-SPEC. | |
06f76f0d | 1689 | |
d6aaac9e KH |
1690 | SCRIPT is a symbol that appears in the first extra slot of the |
1691 | char-table `char-script-table'. | |
06f76f0d | 1692 | |
1d5d7200 KH |
1693 | FONT-SPEC is a vector, a cons, or a string. See the documentation of |
1694 | `set-fontset-font' for the meaning. */) | |
06f76f0d KH |
1695 | (name, fontlist) |
1696 | Lisp_Object name, fontlist; | |
1697 | { | |
1d5d7200 | 1698 | Lisp_Object fontset; |
1d5d7200 | 1699 | int id; |
06f76f0d KH |
1700 | |
1701 | CHECK_STRING (name); | |
1702 | CHECK_LIST (fontlist); | |
1703 | ||
581f7ac7 | 1704 | name = Fdowncase (name); |
1d5d7200 KH |
1705 | id = fs_query_fontset (name, 0); |
1706 | if (id < 0) | |
0d407d77 | 1707 | { |
581f7ac7 KH |
1708 | Lisp_Object font_spec = Ffont_spec (0, NULL); |
1709 | Lisp_Object short_name; | |
5f2d79e0 | 1710 | char xlfd[256]; |
581f7ac7 KH |
1711 | int len; |
1712 | ||
dbf46ba6 | 1713 | if (font_parse_xlfd ((char *) SDATA (name), font_spec) < 0) |
d6aaac9e | 1714 | error ("Fontset name must be in XLFD format"); |
581f7ac7 | 1715 | short_name = AREF (font_spec, FONT_REGISTRY_INDEX); |
dbf46ba6 | 1716 | if (strncmp ((char *) SDATA (SYMBOL_NAME (short_name)), "fontset-", 8) |
581f7ac7 KH |
1717 | || SBYTES (SYMBOL_NAME (short_name)) < 9) |
1718 | error ("Registry field of fontset name must be \"fontset-*\""); | |
1719 | Vfontset_alias_alist = Fcons (Fcons (name, SYMBOL_NAME (short_name)), | |
1720 | Vfontset_alias_alist); | |
1721 | ASET (font_spec, FONT_REGISTRY_INDEX, Qiso8859_1); | |
d6aaac9e | 1722 | fontset = make_fontset (Qnil, name, Qnil); |
5f2d79e0 KH |
1723 | len = font_unparse_xlfd (font_spec, 0, xlfd, 256); |
1724 | if (len < 0) | |
1725 | error ("Invalid fontset name (perhaps too long): %s", SDATA (name)); | |
581f7ac7 | 1726 | FONTSET_ASCII (fontset) = make_unibyte_string (xlfd, len); |
d6aaac9e | 1727 | } |
1d5d7200 KH |
1728 | else |
1729 | { | |
8510724d | 1730 | fontset = FONTSET_FROM_ID (id); |
1d5d7200 KH |
1731 | free_realized_fontsets (fontset); |
1732 | Fset_char_table_range (fontset, Qt, Qnil); | |
0d407d77 | 1733 | } |
4ed46869 | 1734 | |
1d5d7200 KH |
1735 | for (; ! NILP (fontlist); fontlist = Fcdr (fontlist)) |
1736 | { | |
1737 | Lisp_Object elt, script; | |
1738 | ||
1739 | elt = Fcar (fontlist); | |
1740 | script = Fcar (elt); | |
cc36ddbf KH |
1741 | elt = Fcdr (elt); |
1742 | if (CONSP (elt) && (NILP (XCDR (elt)) || CONSP (XCDR (elt)))) | |
1743 | for (; CONSP (elt); elt = XCDR (elt)) | |
1744 | Fset_fontset_font (name, script, XCAR (elt), Qnil, Qappend); | |
1745 | else | |
1746 | Fset_fontset_font (name, script, elt, Qnil, Qappend); | |
1d5d7200 | 1747 | } |
06f76f0d KH |
1748 | return name; |
1749 | } | |
1750 | ||
1751 | ||
452a78e0 | 1752 | /* Alist of automatically created fontsets. Each element is a cons |
581f7ac7 | 1753 | (FONT-SPEC . FONTSET-ID). */ |
452a78e0 | 1754 | static Lisp_Object auto_fontset_alist; |
d6aaac9e | 1755 | |
d6490542 KH |
1756 | /* Number of automatically created fontsets. */ |
1757 | static int num_auto_fontsets; | |
1758 | ||
d8d2f142 KH |
1759 | /* Retun a fontset synthesized from FONT-OBJECT. This is called from |
1760 | x_new_font when FONT-OBJECT is used for the default ASCII font of a | |
1761 | frame, and the returned fontset is used for the default fontset of | |
1762 | that frame. The fontset specifies a font of the same registry as | |
1763 | FONT-OBJECT for all characters in the repertory of the registry | |
1764 | (see Vfont_encoding_alist). If the repertory is not known, the | |
1765 | fontset specifies the font for all Latin characters assuming that a | |
1766 | user intends to use FONT-OBJECT for Latin characters. */ | |
d6490542 | 1767 | |
d6aaac9e | 1768 | int |
581f7ac7 | 1769 | fontset_from_font (font_object) |
8aa07a8d KH |
1770 | Lisp_Object font_object; |
1771 | { | |
03ef560c | 1772 | Lisp_Object font_name = font_get_name (font_object); |
581f7ac7 | 1773 | Lisp_Object font_spec = Fcopy_font_spec (font_object); |
d6490542 | 1774 | Lisp_Object registry = AREF (font_spec, FONT_REGISTRY_INDEX); |
581f7ac7 KH |
1775 | Lisp_Object fontset_spec, alias, name, fontset; |
1776 | Lisp_Object val; | |
8aa07a8d | 1777 | |
581f7ac7 KH |
1778 | val = assoc_no_quit (font_spec, auto_fontset_alist); |
1779 | if (CONSP (val)) | |
1780 | return XINT (FONTSET_ID (XCDR (val))); | |
d6490542 | 1781 | if (num_auto_fontsets++ == 0) |
581f7ac7 | 1782 | alias = intern ("fontset-startup"); |
03ef560c KH |
1783 | else |
1784 | { | |
1785 | char temp[32]; | |
8aa07a8d | 1786 | |
d6490542 | 1787 | sprintf (temp, "fontset-auto%d", num_auto_fontsets - 1); |
581f7ac7 | 1788 | alias = intern (temp); |
03ef560c | 1789 | } |
581f7ac7 KH |
1790 | fontset_spec = Fcopy_font_spec (font_spec); |
1791 | ASET (fontset_spec, FONT_REGISTRY_INDEX, alias); | |
7ae2e7f0 | 1792 | name = Ffont_xlfd_name (fontset_spec, Qnil); |
03ef560c | 1793 | if (NILP (name)) |
581f7ac7 | 1794 | abort (); |
03ef560c | 1795 | fontset = make_fontset (Qnil, name, Qnil); |
581f7ac7 KH |
1796 | Vfontset_alias_alist = Fcons (Fcons (name, SYMBOL_NAME (alias)), |
1797 | Vfontset_alias_alist); | |
1798 | alias = Fdowncase (AREF (font_object, FONT_NAME_INDEX)); | |
1799 | Vfontset_alias_alist = Fcons (Fcons (name, alias), Vfontset_alias_alist); | |
1800 | auto_fontset_alist = Fcons (Fcons (font_spec, fontset), auto_fontset_alist); | |
d8d2f142 KH |
1801 | font_spec = Ffont_spec (0, NULL); |
1802 | ASET (font_spec, FONT_REGISTRY_INDEX, registry); | |
1803 | { | |
1804 | Lisp_Object target = find_font_encoding (SYMBOL_NAME (registry)); | |
1805 | ||
1806 | if (CONSP (target)) | |
1807 | target = XCDR (target); | |
1808 | if (! CHARSETP (target)) | |
1809 | target = Qlatin; | |
1810 | Fset_fontset_font (name, target, font_spec, Qnil, Qnil); | |
1811 | Fset_fontset_font (name, Qnil, font_spec, Qnil, Qnil); | |
1812 | } | |
1813 | ||
d6490542 | 1814 | FONTSET_ASCII (fontset) = font_name; |
edfda783 | 1815 | |
03ef560c | 1816 | return XINT (FONTSET_ID (fontset)); |
8aa07a8d KH |
1817 | } |
1818 | ||
d6490542 KH |
1819 | |
1820 | /* Update auto_fontset_alist for FONTSET. When an ASCII font of | |
1821 | FONTSET is changed, we delete an entry of FONTSET if any from | |
1822 | auto_fontset_alist so that FONTSET is not re-used by | |
1823 | fontset_from_font. */ | |
1824 | ||
1825 | static void | |
1826 | update_auto_fontset_alist (font_object, fontset) | |
1827 | Lisp_Object font_object, fontset; | |
1828 | { | |
1829 | Lisp_Object prev, tail; | |
1830 | ||
1831 | for (prev = Qnil, tail = auto_fontset_alist; CONSP (tail); | |
1832 | prev = tail, tail = XCDR (tail)) | |
1833 | if (EQ (fontset, XCDR (XCAR (tail)))) | |
1834 | { | |
1835 | if (NILP (prev)) | |
1836 | auto_fontset_alist = XCDR (tail); | |
1837 | else | |
1838 | XSETCDR (prev, XCDR (tail)); | |
1839 | break; | |
1840 | } | |
1841 | } | |
1842 | ||
1843 | ||
fe44f009 KH |
1844 | /* Return a cons (FONT-OBJECT . GLYPH-CODE). |
1845 | FONT-OBJECT is the font for the character at POSITION in the current | |
1ff005e1 | 1846 | buffer. This is computed from all the text properties and overlays |
cf14fd6e | 1847 | that apply to POSITION. POSTION may be nil, in which case, |
fe44f009 | 1848 | FONT-SPEC is the font for displaying the character CH with the |
cf14fd6e KH |
1849 | default face. |
1850 | ||
92c15c34 KH |
1851 | GLYPH-CODE is the glyph code in the font to use for the character. |
1852 | ||
1853 | If the 2nd optional arg CH is non-nil, it is a character to check | |
1854 | the font instead of the character at POSITION. | |
1855 | ||
1856 | It returns nil in the following cases: | |
1ff005e1 KH |
1857 | |
1858 | (1) The window system doesn't have a font for the character (thus | |
1859 | it is displayed by an empty box). | |
1860 | ||
1861 | (2) The character code is invalid. | |
1862 | ||
cf14fd6e KH |
1863 | (3) If POSITION is not nil, and the current buffer is not displayed |
1864 | in any window. | |
1ff005e1 KH |
1865 | |
1866 | In addition, the returned font name may not take into account of | |
1867 | such redisplay engine hooks as what used in jit-lock-mode if | |
1868 | POSITION is currently not visible. */ | |
1869 | ||
1870 | ||
92c15c34 | 1871 | DEFUN ("internal-char-font", Finternal_char_font, Sinternal_char_font, 1, 2, 0, |
335c5470 | 1872 | doc: /* For internal use only. */) |
92c15c34 KH |
1873 | (position, ch) |
1874 | Lisp_Object position, ch; | |
1ff005e1 | 1875 | { |
0f8b27ea | 1876 | EMACS_INT pos, pos_byte, dummy; |
1ff005e1 KH |
1877 | int face_id; |
1878 | int c; | |
1ff005e1 KH |
1879 | struct frame *f; |
1880 | struct face *face; | |
f0be8ea0 | 1881 | int cs_id; |
1ff005e1 | 1882 | |
cf14fd6e | 1883 | if (NILP (position)) |
92c15c34 KH |
1884 | { |
1885 | CHECK_CHARACTER (ch); | |
1886 | c = XINT (ch); | |
cf14fd6e | 1887 | f = XFRAME (selected_frame); |
f2cec7a9 | 1888 | face_id = lookup_basic_face (f, DEFAULT_FACE_ID); |
327719ee | 1889 | pos = -1; |
f0be8ea0 | 1890 | cs_id = -1; |
cf14fd6e KH |
1891 | } |
1892 | else | |
1893 | { | |
2f80c0a2 | 1894 | Lisp_Object window, charset; |
cf14fd6e KH |
1895 | struct window *w; |
1896 | ||
1897 | CHECK_NUMBER_COERCE_MARKER (position); | |
1898 | pos = XINT (position); | |
1899 | if (pos < BEGV || pos >= ZV) | |
1900 | args_out_of_range_3 (position, make_number (BEGV), make_number (ZV)); | |
1901 | pos_byte = CHAR_TO_BYTE (pos); | |
1902 | if (NILP (ch)) | |
1903 | c = FETCH_CHAR (pos_byte); | |
1904 | else | |
1905 | { | |
1906 | CHECK_NATNUM (ch); | |
1907 | c = XINT (ch); | |
1908 | } | |
1909 | window = Fget_buffer_window (Fcurrent_buffer (), Qnil); | |
1910 | if (NILP (window)) | |
1911 | return Qnil; | |
1912 | w = XWINDOW (window); | |
1913 | f = XFRAME (w->frame); | |
6970f632 CY |
1914 | face_id = face_at_buffer_position (w, pos, -1, -1, &dummy, |
1915 | pos + 100, 0, -1); | |
2f80c0a2 KH |
1916 | charset = Fget_char_property (position, Qcharset, Qnil); |
1917 | if (CHARSETP (charset)) | |
f0be8ea0 | 1918 | cs_id = XINT (CHARSET_SYMBOL_ID (charset)); |
2f80c0a2 | 1919 | else |
f0be8ea0 | 1920 | cs_id = -1; |
92c15c34 | 1921 | } |
1ff005e1 | 1922 | if (! CHAR_VALID_P (c, 0)) |
1ff005e1 | 1923 | return Qnil; |
327719ee | 1924 | face_id = FACE_FOR_CHAR (f, FACE_FROM_ID (f, face_id), c, pos, Qnil); |
1ff005e1 | 1925 | face = FACE_FROM_ID (f, face_id); |
581f7ac7 | 1926 | if (face->font) |
8aa07a8d | 1927 | { |
fe44f009 KH |
1928 | unsigned code = face->font->driver->encode_char (face->font, c); |
1929 | Lisp_Object font_object; | |
581f7ac7 KH |
1930 | /* Assignment to EMACS_INT stops GCC whining about limited range |
1931 | of data type. */ | |
1932 | EMACS_INT cod = code; | |
1933 | ||
1934 | if (code == FONT_INVALID_CODE) | |
1935 | return Qnil; | |
fe44f009 | 1936 | XSETFONT (font_object, face->font); |
581f7ac7 | 1937 | if (cod <= MOST_POSITIVE_FIXNUM) |
fe44f009 KH |
1938 | return Fcons (font_object, make_number (code)); |
1939 | return Fcons (font_object, Fcons (make_number (code >> 16), | |
581f7ac7 | 1940 | make_number (code & 0xFFFF))); |
92c15c34 KH |
1941 | } |
1942 | return Qnil; | |
1ff005e1 KH |
1943 | } |
1944 | ||
1945 | ||
1d5d7200 KH |
1946 | DEFUN ("fontset-info", Ffontset_info, Sfontset_info, 1, 2, 0, |
1947 | doc: /* Return information about a fontset FONTSET on frame FRAME. | |
e2b45cf9 | 1948 | |
a3d16f39 KH |
1949 | FONTSET is a fontset name string, nil for the fontset of FRAME, or t |
1950 | for the default fontset. FRAME nil means the selected frame. | |
1ff005e1 | 1951 | |
a3d16f39 | 1952 | The value is a char-table whose elements have this form: |
1ff005e1 | 1953 | |
a3d16f39 | 1954 | ((FONT OPENED-FONT ...) ...) |
1ff005e1 | 1955 | |
a3d16f39 | 1956 | FONT is a name of font specified for a range of characters. |
1ff005e1 | 1957 | |
d6aaac9e | 1958 | OPENED-FONT is a name of a font actually opened. |
1ff005e1 | 1959 | |
a3d16f39 KH |
1960 | The char-table has one extra slot. If FONTSET is not the default |
1961 | fontset, the value the extra slot is a char-table containing the | |
1962 | information about the derived fonts from the default fontset. The | |
1963 | format is the same as above. */) | |
1d5d7200 KH |
1964 | (fontset, frame) |
1965 | Lisp_Object fontset, frame; | |
4ed46869 KH |
1966 | { |
1967 | FRAME_PTR f; | |
cc7b6145 KH |
1968 | Lisp_Object *realized[2], fontsets[2], tables[2]; |
1969 | Lisp_Object val, elt; | |
1970 | int c, i, j, k; | |
fc8865fc | 1971 | |
4ed46869 KH |
1972 | (*check_window_system_func) (); |
1973 | ||
a3d16f39 | 1974 | fontset = check_fontset_name (fontset, &frame); |
18f39d0e | 1975 | f = XFRAME (frame); |
4ed46869 | 1976 | |
1d5d7200 KH |
1977 | /* Recode fontsets realized on FRAME from the base fontset FONTSET |
1978 | in the table `realized'. */ | |
cc7b6145 KH |
1979 | realized[0] = (Lisp_Object *) alloca (sizeof (Lisp_Object) |
1980 | * ASIZE (Vfontset_table)); | |
1981 | for (i = j = 0; i < ASIZE (Vfontset_table); i++) | |
0d407d77 | 1982 | { |
1ff005e1 KH |
1983 | elt = FONTSET_FROM_ID (i); |
1984 | if (!NILP (elt) | |
1d5d7200 KH |
1985 | && EQ (FONTSET_BASE (elt), fontset) |
1986 | && EQ (FONTSET_FRAME (elt), frame)) | |
cc7b6145 | 1987 | realized[0][j++] = elt; |
0d407d77 | 1988 | } |
cc7b6145 | 1989 | realized[0][j] = Qnil; |
4ed46869 | 1990 | |
cc7b6145 KH |
1991 | realized[1] = (Lisp_Object *) alloca (sizeof (Lisp_Object) |
1992 | * ASIZE (Vfontset_table)); | |
1993 | for (i = j = 0; ! NILP (realized[0][i]); i++) | |
1994 | { | |
1995 | elt = FONTSET_DEFAULT (realized[0][i]); | |
1996 | if (! NILP (elt)) | |
1997 | realized[1][j++] = elt; | |
1998 | } | |
1999 | realized[1][j] = Qnil; | |
2000 | ||
2001 | tables[0] = Fmake_char_table (Qfontset_info, Qnil); | |
cc7b6145 | 2002 | fontsets[0] = fontset; |
348db3dd | 2003 | if (!EQ (fontset, Vdefault_fontset)) |
a3d16f39 KH |
2004 | { |
2005 | tables[1] = Fmake_char_table (Qnil, Qnil); | |
2006 | XCHAR_TABLE (tables[0])->extras[0] = tables[1]; | |
2007 | fontsets[1] = Vdefault_fontset; | |
2008 | } | |
e2b45cf9 | 2009 | |
1d5d7200 KH |
2010 | /* Accumulate information of the fontset in TABLE. The format of |
2011 | each element is ((FONT-SPEC OPENED-FONT ...) ...). */ | |
cc7b6145 | 2012 | for (k = 0; k <= 1; k++) |
0d407d77 | 2013 | { |
cc7b6145 | 2014 | for (c = 0; c <= MAX_CHAR; ) |
d6aaac9e | 2015 | { |
5b30be1a | 2016 | int from = c, to = MAX_5_BYTE_CHAR; |
0d407d77 | 2017 | |
cc7b6145 KH |
2018 | if (c <= MAX_5_BYTE_CHAR) |
2019 | { | |
2020 | val = char_table_ref_and_range (fontsets[k], c, &from, &to); | |
cc7b6145 KH |
2021 | } |
2022 | else | |
2023 | { | |
2024 | val = FONTSET_FALLBACK (fontsets[k]); | |
2025 | to = MAX_CHAR; | |
2026 | } | |
d6aaac9e | 2027 | if (VECTORP (val)) |
0d407d77 | 2028 | { |
d6aaac9e KH |
2029 | Lisp_Object alist; |
2030 | ||
2031 | /* At first, set ALIST to ((FONT-SPEC) ...). */ | |
2032 | for (alist = Qnil, i = 0; i < ASIZE (val); i++) | |
581f7ac7 KH |
2033 | if (! NILP (AREF (val, i))) |
2034 | alist = Fcons (Fcons (FONT_DEF_SPEC (AREF (val, i)), Qnil), | |
2035 | alist); | |
d6aaac9e KH |
2036 | alist = Fnreverse (alist); |
2037 | ||
660100f3 | 2038 | /* Then store opened font names to cdr of each elements. */ |
cc7b6145 | 2039 | for (i = 0; ! NILP (realized[k][i]); i++) |
1ff005e1 | 2040 | { |
cc7b6145 KH |
2041 | if (c <= MAX_5_BYTE_CHAR) |
2042 | val = FONTSET_REF (realized[k][i], c); | |
2043 | else | |
2044 | val = FONTSET_FALLBACK (realized[k][i]); | |
a3d16f39 | 2045 | if (! CONSP (val) || ! VECTORP (XCDR (val))) |
d6aaac9e | 2046 | continue; |
a3d16f39 KH |
2047 | /* VAL: (int . [[FACE-ID FONT-DEF FONT-OBJECT int] ... ]) */ |
2048 | val = XCDR (val); | |
2049 | for (j = 0; j < ASIZE (val); j++) | |
3d4448a8 | 2050 | { |
581f7ac7 KH |
2051 | elt = AREF (val, j); |
2052 | if (FONT_OBJECT_P (RFONT_DEF_OBJECT (elt))) | |
2053 | { | |
2054 | Lisp_Object font_object = RFONT_DEF_OBJECT (elt); | |
2055 | Lisp_Object slot, name; | |
2056 | ||
2057 | slot = Fassq (RFONT_DEF_SPEC (elt), alist); | |
2058 | name = AREF (font_object, FONT_NAME_INDEX); | |
2059 | if (NILP (Fmember (name, XCDR (slot)))) | |
2060 | nconc2 (slot, Fcons (name, Qnil)); | |
2061 | } | |
3d4448a8 | 2062 | } |
1ff005e1 | 2063 | } |
d6aaac9e KH |
2064 | |
2065 | /* Store ALIST in TBL for characters C..TO. */ | |
cc7b6145 KH |
2066 | if (c <= MAX_5_BYTE_CHAR) |
2067 | char_table_set_range (tables[k], c, to, alist); | |
2068 | else | |
2069 | XCHAR_TABLE (tables[k])->defalt = alist; | |
581f7ac7 KH |
2070 | |
2071 | /* At last, change each elements to font names. */ | |
2072 | for (; CONSP (alist); alist = XCDR (alist)) | |
2073 | { | |
2074 | elt = XCAR (alist); | |
7ae2e7f0 | 2075 | XSETCAR (elt, Ffont_xlfd_name (XCAR (elt), Qnil)); |
581f7ac7 | 2076 | } |
0d407d77 | 2077 | } |
d6aaac9e | 2078 | c = to + 1; |
0d407d77 | 2079 | } |
348db3dd | 2080 | if (EQ (fontset, Vdefault_fontset)) |
a3d16f39 | 2081 | break; |
0d407d77 | 2082 | } |
a921395d | 2083 | |
cc7b6145 | 2084 | return tables[0]; |
4ed46869 KH |
2085 | } |
2086 | ||
1d5d7200 | 2087 | |
0fdf26e6 | 2088 | DEFUN ("fontset-font", Ffontset_font, Sfontset_font, 2, 3, 0, |
335c5470 | 2089 | doc: /* Return a font name pattern for character CH in fontset NAME. |
0fdf26e6 | 2090 | If NAME is t, find a pattern in the default fontset. |
5fc05db0 | 2091 | If NAME is nil, find a pattern in the fontset of the selected frame. |
0fdf26e6 KH |
2092 | |
2093 | The value has the form (FAMILY . REGISTRY), where FAMILY is a font | |
2094 | family name and REGISTRY is a font registry name. This is actually | |
2095 | the first font name pattern for CH in the fontset or in the default | |
2096 | fontset. | |
2097 | ||
2098 | If the 2nd optional arg ALL is non-nil, return a list of all font name | |
2099 | patterns. */) | |
2100 | (name, ch, all) | |
2101 | Lisp_Object name, ch, all; | |
0d407d77 | 2102 | { |
1337ac77 | 2103 | int c; |
0fdf26e6 KH |
2104 | Lisp_Object fontset, elt, list, repertory, val; |
2105 | int i, j; | |
a3d16f39 | 2106 | Lisp_Object frame; |
0d407d77 | 2107 | |
a3d16f39 KH |
2108 | frame = Qnil; |
2109 | fontset = check_fontset_name (name, &frame); | |
0d407d77 | 2110 | |
06f76f0d | 2111 | CHECK_CHARACTER (ch); |
0d407d77 | 2112 | c = XINT (ch); |
0fdf26e6 KH |
2113 | list = Qnil; |
2114 | while (1) | |
2115 | { | |
2116 | for (i = 0, elt = FONTSET_REF (fontset, c); i < 2; | |
2117 | i++, elt = FONTSET_FALLBACK (fontset)) | |
2118 | if (VECTORP (elt)) | |
2119 | for (j = 0; j < ASIZE (elt); j++) | |
2120 | { | |
a124bbb6 KH |
2121 | Lisp_Object family, registry; |
2122 | ||
0fdf26e6 | 2123 | val = AREF (elt, j); |
5fc05db0 | 2124 | if (NILP (val)) |
563a866e | 2125 | return Qnil; |
0fdf26e6 KH |
2126 | repertory = AREF (val, 1); |
2127 | if (INTEGERP (repertory)) | |
2128 | { | |
2129 | struct charset *charset = CHARSET_FROM_ID (XINT (repertory)); | |
2130 | ||
2131 | if (! CHAR_CHARSET_P (c, charset)) | |
2132 | continue; | |
2133 | } | |
2134 | else if (CHAR_TABLE_P (repertory)) | |
2135 | { | |
2136 | if (NILP (CHAR_TABLE_REF (repertory, c))) | |
2137 | continue; | |
2138 | } | |
2139 | val = AREF (val, 0); | |
a124bbb6 KH |
2140 | /* VAL is a FONT-SPEC */ |
2141 | family = AREF (val, FONT_FAMILY_INDEX); | |
2142 | if (! NILP (family)) | |
2143 | family = SYMBOL_NAME (family); | |
2144 | registry = AREF (val, FONT_REGISTRY_INDEX); | |
2145 | if (! NILP (registry)) | |
2146 | registry = SYMBOL_NAME (registry); | |
2147 | val = Fcons (family, registry); | |
0fdf26e6 KH |
2148 | if (NILP (all)) |
2149 | return val; | |
2150 | list = Fcons (val, list); | |
2151 | } | |
2152 | if (EQ (fontset, Vdefault_fontset)) | |
2153 | break; | |
2154 | fontset = Vdefault_fontset; | |
2155 | } | |
2156 | return (Fnreverse (list)); | |
0d407d77 | 2157 | } |
0d407d77 KH |
2158 | |
2159 | DEFUN ("fontset-list", Ffontset_list, Sfontset_list, 0, 0, 0, | |
335c5470 PJ |
2160 | doc: /* Return a list of all defined fontset names. */) |
2161 | () | |
0d407d77 KH |
2162 | { |
2163 | Lisp_Object fontset, list; | |
2164 | int i; | |
2165 | ||
2166 | list = Qnil; | |
2167 | for (i = 0; i < ASIZE (Vfontset_table); i++) | |
2168 | { | |
2169 | fontset = FONTSET_FROM_ID (i); | |
2170 | if (!NILP (fontset) | |
2171 | && BASE_FONTSET_P (fontset)) | |
2172 | list = Fcons (FONTSET_NAME (fontset), list); | |
2173 | } | |
1ff005e1 | 2174 | |
0d407d77 KH |
2175 | return list; |
2176 | } | |
2177 | ||
452a78e0 KH |
2178 | |
2179 | #ifdef FONTSET_DEBUG | |
2180 | ||
2181 | Lisp_Object | |
2182 | dump_fontset (fontset) | |
2183 | Lisp_Object fontset; | |
2184 | { | |
2185 | Lisp_Object vec; | |
2186 | ||
2187 | vec = Fmake_vector (make_number (3), Qnil); | |
2188 | ASET (vec, 0, FONTSET_ID (fontset)); | |
2189 | ||
2190 | if (BASE_FONTSET_P (fontset)) | |
2191 | { | |
2192 | ASET (vec, 1, FONTSET_NAME (fontset)); | |
2193 | } | |
2194 | else | |
2195 | { | |
2196 | Lisp_Object frame; | |
2197 | ||
2198 | frame = FONTSET_FRAME (fontset); | |
2199 | if (FRAMEP (frame)) | |
2200 | { | |
2201 | FRAME_PTR f = XFRAME (frame); | |
2202 | ||
2203 | if (FRAME_LIVE_P (f)) | |
1c82b4b3 KH |
2204 | ASET (vec, 1, |
2205 | Fcons (FONTSET_NAME (FONTSET_BASE (fontset)), f->name)); | |
452a78e0 | 2206 | else |
1c82b4b3 KH |
2207 | ASET (vec, 1, |
2208 | Fcons (FONTSET_NAME (FONTSET_BASE (fontset)), Qnil)); | |
452a78e0 | 2209 | } |
eb36588a KH |
2210 | if (!NILP (FONTSET_DEFAULT (fontset))) |
2211 | ASET (vec, 2, FONTSET_ID (FONTSET_DEFAULT (fontset))); | |
452a78e0 KH |
2212 | } |
2213 | return vec; | |
2214 | } | |
2215 | ||
2216 | DEFUN ("fontset-list-all", Ffontset_list_all, Sfontset_list_all, 0, 0, 0, | |
2217 | doc: /* Return a brief summary of all fontsets for debug use. */) | |
2218 | () | |
2219 | { | |
2220 | Lisp_Object val; | |
2221 | int i; | |
2222 | ||
2223 | for (i = 0, val = Qnil; i < ASIZE (Vfontset_table); i++) | |
2224 | if (! NILP (AREF (Vfontset_table, i))) | |
2225 | val = Fcons (dump_fontset (AREF (Vfontset_table, i)), val); | |
2226 | return (Fnreverse (val)); | |
2227 | } | |
2228 | #endif /* FONTSET_DEBUG */ | |
2229 | ||
dfcf069d | 2230 | void |
4ed46869 KH |
2231 | syms_of_fontset () |
2232 | { | |
1d5d7200 | 2233 | DEFSYM (Qfontset, "fontset"); |
eb36588a | 2234 | Fput (Qfontset, Qchar_table_extra_slots, make_number (9)); |
d6aaac9e KH |
2235 | DEFSYM (Qfontset_info, "fontset-info"); |
2236 | Fput (Qfontset_info, Qchar_table_extra_slots, make_number (1)); | |
4ed46869 | 2237 | |
1d5d7200 KH |
2238 | DEFSYM (Qprepend, "prepend"); |
2239 | DEFSYM (Qappend, "append"); | |
c3fb88cc | 2240 | DEFSYM (Qlatin, "latin"); |
4ed46869 KH |
2241 | |
2242 | Vcached_fontset_data = Qnil; | |
2243 | staticpro (&Vcached_fontset_data); | |
2244 | ||
0d407d77 KH |
2245 | Vfontset_table = Fmake_vector (make_number (32), Qnil); |
2246 | staticpro (&Vfontset_table); | |
0d407d77 KH |
2247 | |
2248 | Vdefault_fontset = Fmake_char_table (Qfontset, Qnil); | |
2249 | staticpro (&Vdefault_fontset); | |
1ff005e1 KH |
2250 | FONTSET_ID (Vdefault_fontset) = make_number (0); |
2251 | FONTSET_NAME (Vdefault_fontset) | |
d67b4f80 | 2252 | = make_pure_c_string ("-*-*-*-*-*-*-*-*-*-*-*-*-fontset-default"); |
ff7a2223 | 2253 | ASET (Vfontset_table, 0, Vdefault_fontset); |
1ff005e1 | 2254 | next_fontset_id = 1; |
4ed46869 | 2255 | |
452a78e0 KH |
2256 | auto_fontset_alist = Qnil; |
2257 | staticpro (&auto_fontset_alist); | |
2258 | ||
28e2436a KH |
2259 | DEFVAR_LISP ("font-encoding-charset-alist", &Vfont_encoding_charset_alist, |
2260 | doc: /* | |
2261 | Alist of charsets vs the charsets to determine the preferred font encoding. | |
eb152aa9 | 2262 | Each element looks like (CHARSET . ENCODING-CHARSET), |
28e2436a KH |
2263 | where ENCODING-CHARSET is a charset registered in the variable |
2264 | `font-encoding-alist' as ENCODING. | |
2265 | ||
2266 | When a text has a property `charset' and the value is CHARSET, a font | |
2267 | whose encoding corresponds to ENCODING-CHARSET is preferred. */); | |
2268 | Vfont_encoding_charset_alist = Qnil; | |
2269 | ||
6a7e6d80 | 2270 | DEFVAR_LISP ("use-default-ascent", &Vuse_default_ascent, |
1d5d7200 KH |
2271 | doc: /* |
2272 | Char table of characters whose ascent values should be ignored. | |
335c5470 | 2273 | If an entry for a character is non-nil, the ascent value of the glyph |
eb152aa9 | 2274 | is assumed to be specified by _MULE_DEFAULT_ASCENT property of a font. |
335c5470 PJ |
2275 | |
2276 | This affects how a composite character which contains | |
2277 | such a character is displayed on screen. */); | |
2aeafb78 KH |
2278 | Vuse_default_ascent = Qnil; |
2279 | ||
2280 | DEFVAR_LISP ("ignore-relative-composition", &Vignore_relative_composition, | |
1d5d7200 | 2281 | doc: /* |
eb152aa9 | 2282 | Char table of characters which are not composed relatively. |
335c5470 PJ |
2283 | If an entry for a character is non-nil, a composition sequence |
2284 | which contains that character is displayed so that | |
2285 | the glyph of that character is put without considering | |
2286 | an ascent and descent value of a previous character. */); | |
810abb87 | 2287 | Vignore_relative_composition = Qnil; |
6a7e6d80 | 2288 | |
01d4b817 | 2289 | DEFVAR_LISP ("alternate-fontname-alist", &Valternate_fontname_alist, |
335c5470 PJ |
2290 | doc: /* Alist of fontname vs list of the alternate fontnames. |
2291 | When a specified font name is not found, the corresponding | |
2292 | alternate fontnames (if any) are tried instead. */); | |
01d4b817 | 2293 | Valternate_fontname_alist = Qnil; |
8c83e4f9 | 2294 | |
1c283e35 | 2295 | DEFVAR_LISP ("fontset-alias-alist", &Vfontset_alias_alist, |
335c5470 | 2296 | doc: /* Alist of fontset names vs the aliases. */); |
1ff005e1 | 2297 | Vfontset_alias_alist = Fcons (Fcons (FONTSET_NAME (Vdefault_fontset), |
d67b4f80 | 2298 | make_pure_c_string ("fontset-default")), |
1ff005e1 | 2299 | Qnil); |
1c283e35 | 2300 | |
810abb87 KH |
2301 | DEFVAR_LISP ("vertical-centering-font-regexp", |
2302 | &Vvertical_centering_font_regexp, | |
335c5470 PJ |
2303 | doc: /* *Regexp matching font names that require vertical centering on display. |
2304 | When a character is displayed with such fonts, the character is displayed | |
fc8865fc | 2305 | at the vertical center of lines. */); |
810abb87 KH |
2306 | Vvertical_centering_font_regexp = Qnil; |
2307 | ||
21ff5ed6 KH |
2308 | DEFVAR_LISP ("otf-script-alist", &Votf_script_alist, |
2309 | doc: /* Alist of OpenType script tags vs the corresponding script names. */); | |
2310 | Votf_script_alist = Qnil; | |
2311 | ||
4ed46869 KH |
2312 | defsubr (&Squery_fontset); |
2313 | defsubr (&Snew_fontset); | |
2314 | defsubr (&Sset_fontset_font); | |
1ff005e1 | 2315 | defsubr (&Sinternal_char_font); |
4ed46869 | 2316 | defsubr (&Sfontset_info); |
0d407d77 KH |
2317 | defsubr (&Sfontset_font); |
2318 | defsubr (&Sfontset_list); | |
452a78e0 KH |
2319 | #ifdef FONTSET_DEBUG |
2320 | defsubr (&Sfontset_list_all); | |
2321 | #endif | |
e3400864 | 2322 | } |
92c15c34 KH |
2323 | |
2324 | /* arch-tag: ea861585-2f5f-4e5b-9849-d04a9c3a3537 | |
2325 | (do not change this comment) */ |