2 Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
3 Free Software Foundation, Inc.
4 Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
5 2005, 2006, 2007, 2008, 2009, 2010
6 National Institute of Advanced Industrial Science and Technology (AIST)
7 Registration Number H14PRO021
8 Copyright (C) 2003, 2006
9 National Institute of Advanced Industrial Science and Technology (AIST)
10 Registration Number H13PRO009
12 This file is part of GNU Emacs.
14 GNU Emacs is free software: you can redistribute it and/or modify
15 it under the terms of the GNU General Public License as published by
16 the Free Software Foundation, either version 3 of the License, or
17 (at your option) any later version.
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.
24 You should have received a copy of the GNU General Public License
25 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
27 /* #define FONTSET_DEBUG */
34 #include "blockinput.h"
36 #include "character.h"
41 #include "dispextern.h"
42 #include "intervals.h"
54 #include "termhooks.h"
60 #define xassert(X) do {if (!(X)) abort ();} while (0)
63 #else /* not FONTSET_DEBUG */
64 #define xassert(X) (void) 0
65 #endif /* not FONTSET_DEBUG */
69 A fontset is a collection of font related information to give
70 similar appearance (style, etc) of characters. A fontset has two
71 roles. One is to use for the frame parameter `font' as if it is an
72 ASCII font. In that case, Emacs uses the font specified for
73 `ascii' script for the frame's default font.
75 Another role, the more important one, is to provide information
76 about which font to use for each non-ASCII character.
78 There are two kinds of fontsets; base and realized. A base fontset
79 is created by `new-fontset' from Emacs Lisp explicitly. A realized
80 fontset is created implicitly when a face is realized for ASCII
81 characters. A face is also realized for non-ASCII characters based
82 on an ASCII face. All of non-ASCII faces based on the same ASCII
83 face share the same realized fontset.
85 A fontset object is implemented by a char-table whose default value
86 and parent are always nil.
88 An element of a base fontset is a vector of FONT-DEFs which itself
89 is a vector [ FONT-SPEC ENCODING REPERTORY ].
91 An element of a realized fontset is nil, t, 0, or a vector of this
94 [ CHARSET-ORDERED-LIST-TICK PREFERRED-RFONT-DEF
95 RFONT-DEF0 RFONT-DEF1 ... ]
97 RFONT-DEFn (i.e. Realized FONT-DEF) has this form:
99 [ FACE-ID FONT-DEF FONT-OBJECT SORTING-SCORE ]
101 RFONT-DEFn are automatically reordered by the current charset
104 The value nil means that we have not yet generated the above vector
105 from the base of the fontset.
107 The value t means that no font is available for the corresponding
110 The value 0 means that no font is available for the corresponding
111 range of characters in this fontset, but may be available in the
115 A fontset has 9 extra slots.
117 The 1st slot: the ID number of the fontset
120 base: the name of the fontset
125 realized: the base fontset
129 realized: the frame that the fontset belongs to
132 base: the font name for ASCII characters
137 realized: the ID number of a face to use for characters that
138 has no font in a realized fontset.
142 realized: Alist of font index vs the corresponding repertory
147 realized: If the base is not the default fontset, a fontset
148 realized from the default fontset, else nil.
151 base: Same as element value (but for fallback fonts).
154 All fontsets are recorded in the vector Vfontset_table.
159 There's a special base fontset named `default fontset' which
160 defines the default font specifications. When a base fontset
161 doesn't specify a font for a specific character, the corresponding
162 value in the default fontset is used.
164 The parent of a realized fontset created for such a face that has
165 no fontset is the default fontset.
168 These structures are hidden from the other codes than this file.
169 The other codes handle fontsets only by their ID numbers. They
170 usually use the variable name `fontset' for IDs. But, in this
171 file, we always use varialbe name `id' for IDs, and name `fontset'
172 for an actual fontset object, i.e., char-table.
176 /********** VARIABLES and FUNCTION PROTOTYPES **********/
178 static Lisp_Object Qfontset
;
179 static Lisp_Object Qfontset_info
;
180 static Lisp_Object Qprepend
, Qappend
;
183 /* Vector containing all fontsets. */
184 static Lisp_Object Vfontset_table
;
186 /* Next possibly free fontset ID. Usually this keeps the minimum
187 fontset ID not yet used. */
188 static int next_fontset_id
;
190 /* The default fontset. This gives default FAMILY and REGISTRY of
191 font for each character. */
192 static Lisp_Object Vdefault_fontset
;
194 Lisp_Object Vfont_encoding_charset_alist
;
195 Lisp_Object Vuse_default_ascent
;
196 Lisp_Object Vignore_relative_composition
;
197 Lisp_Object Valternate_fontname_alist
;
198 Lisp_Object Vfontset_alias_alist
;
199 Lisp_Object Vvertical_centering_font_regexp
;
200 Lisp_Object Votf_script_alist
;
202 /* Check if any window system is used now. */
203 void (*check_window_system_func
) (void);
206 /* Prototype declarations for static functions. */
207 static Lisp_Object
fontset_add (Lisp_Object
, Lisp_Object
, Lisp_Object
,
209 static Lisp_Object
fontset_find_font (Lisp_Object
, int, struct face
*,
211 static void reorder_font_vector (Lisp_Object
, struct font
*);
212 static Lisp_Object
fontset_font (Lisp_Object
, int, struct face
*, int);
213 static Lisp_Object
make_fontset (Lisp_Object
, Lisp_Object
, Lisp_Object
);
214 static Lisp_Object
fontset_pattern_regexp (Lisp_Object
);
215 static void accumulate_script_ranges (Lisp_Object
, Lisp_Object
,
217 static void set_fontset_font (Lisp_Object
, Lisp_Object
);
221 /* Return 1 if ID is a valid fontset id, else return 0. */
224 fontset_id_valid_p (int id
)
226 return (id
>= 0 && id
< ASIZE (Vfontset_table
) - 1);
233 /********** MACROS AND FUNCTIONS TO HANDLE FONTSET **********/
235 /* Return the fontset with ID. No check of ID's validness. */
236 #define FONTSET_FROM_ID(id) AREF (Vfontset_table, id)
238 /* Macros to access special values of FONTSET. */
239 #define FONTSET_ID(fontset) XCHAR_TABLE (fontset)->extras[0]
241 /* Macros to access special values of (base) FONTSET. */
242 #define FONTSET_NAME(fontset) XCHAR_TABLE (fontset)->extras[1]
243 #define FONTSET_ASCII(fontset) XCHAR_TABLE (fontset)->extras[4]
244 #define FONTSET_SPEC(fontset) XCHAR_TABLE (fontset)->extras[5]
246 /* Macros to access special values of (realized) FONTSET. */
247 #define FONTSET_BASE(fontset) XCHAR_TABLE (fontset)->extras[2]
248 #define FONTSET_FRAME(fontset) XCHAR_TABLE (fontset)->extras[3]
249 #define FONTSET_OBJLIST(fontset) XCHAR_TABLE (fontset)->extras[4]
250 #define FONTSET_NOFONT_FACE(fontset) XCHAR_TABLE (fontset)->extras[5]
251 #define FONTSET_REPERTORY(fontset) XCHAR_TABLE (fontset)->extras[6]
252 #define FONTSET_DEFAULT(fontset) XCHAR_TABLE (fontset)->extras[7]
254 /* For both base and realized fontset. */
255 #define FONTSET_FALLBACK(fontset) XCHAR_TABLE (fontset)->extras[8]
257 #define BASE_FONTSET_P(fontset) (NILP (FONTSET_BASE (fontset)))
260 /* Macros for FONT-DEF and RFONT-DEF of fontset. */
261 #define FONT_DEF_NEW(font_def, font_spec, encoding, repertory) \
263 (font_def) = Fmake_vector (make_number (3), (font_spec)); \
264 ASET ((font_def), 1, encoding); \
265 ASET ((font_def), 2, repertory); \
268 #define FONT_DEF_SPEC(font_def) AREF (font_def, 0)
269 #define FONT_DEF_ENCODING(font_def) AREF (font_def, 1)
270 #define FONT_DEF_REPERTORY(font_def) AREF (font_def, 2)
272 #define RFONT_DEF_FACE(rfont_def) AREF (rfont_def, 0)
273 #define RFONT_DEF_SET_FACE(rfont_def, face_id) \
274 ASET ((rfont_def), 0, make_number (face_id))
275 #define RFONT_DEF_FONT_DEF(rfont_def) AREF (rfont_def, 1)
276 #define RFONT_DEF_SPEC(rfont_def) FONT_DEF_SPEC (AREF (rfont_def, 1))
277 #define RFONT_DEF_REPERTORY(rfont_def) FONT_DEF_REPERTORY (AREF (rfont_def, 1))
278 #define RFONT_DEF_OBJECT(rfont_def) AREF (rfont_def, 2)
279 #define RFONT_DEF_SET_OBJECT(rfont_def, object) \
280 ASET ((rfont_def), 2, (object))
281 /* Score of RFONT_DEF is an integer value; the lowest 8 bits represent
282 the order of listing by font backends, the higher bits represents
283 the order given by charset priority list. The smaller value is
285 #define RFONT_DEF_SCORE(rfont_def) XINT (AREF (rfont_def, 3))
286 #define RFONT_DEF_SET_SCORE(rfont_def, score) \
287 ASET ((rfont_def), 3, make_number (score))
288 #define RFONT_DEF_NEW(rfont_def, font_def) \
290 (rfont_def) = Fmake_vector (make_number (4), Qnil); \
291 ASET ((rfont_def), 1, (font_def)); \
292 RFONT_DEF_SET_SCORE ((rfont_def), 0); \
296 /* Return the element of FONTSET for the character C. If FONTSET is a
297 base fontset other then the default fontset and FONTSET doesn't
298 contain information for C, return the information in the default
301 #define FONTSET_REF(fontset, c) \
302 (EQ (fontset, Vdefault_fontset) \
303 ? CHAR_TABLE_REF (fontset, c) \
304 : fontset_ref ((fontset), (c)))
307 fontset_ref (Lisp_Object fontset
, int c
)
311 elt
= CHAR_TABLE_REF (fontset
, c
);
312 if (NILP (elt
) && ! EQ (fontset
, Vdefault_fontset
)
313 /* Don't check Vdefault_fontset for a realized fontset. */
314 && NILP (FONTSET_BASE (fontset
)))
315 elt
= CHAR_TABLE_REF (Vdefault_fontset
, c
);
319 /* Set elements of FONTSET for characters in RANGE to the value ELT.
320 RANGE is a cons (FROM . TO), where FROM and TO are character codes
321 specifying a range. */
323 #define FONTSET_SET(fontset, range, elt) \
324 Fset_char_table_range ((fontset), (range), (elt))
327 /* Modify the elements of FONTSET for characters in RANGE by replacing
328 with ELT or adding ELT. RANGE is a cons (FROM . TO), where FROM
329 and TO are character codes specifying a range. If ADD is nil,
330 replace with ELT, if ADD is `prepend', prepend ELT, otherwise,
333 #define FONTSET_ADD(fontset, range, elt, add) \
336 ? (FONTSET_FALLBACK (fontset) = Fmake_vector (make_number (1), (elt))) \
337 : Fset_char_table_range ((fontset), (range), \
338 Fmake_vector (make_number (1), (elt)))) \
339 : fontset_add ((fontset), (range), (elt), (add)))
342 fontset_add (Lisp_Object fontset
, Lisp_Object range
, Lisp_Object elt
, Lisp_Object add
)
345 int idx
= (EQ (add
, Qappend
) ? 0 : 1);
347 args
[1 - idx
] = Fmake_vector (make_number (1), elt
);
351 int from
= XINT (XCAR (range
));
352 int to
= XINT (XCDR (range
));
356 from1
= from
, to1
= to
;
357 args
[idx
] = char_table_ref_and_range (fontset
, from
, &from1
, &to1
);
358 char_table_set_range (fontset
, from
, to1
,
359 NILP (args
[idx
]) ? args
[1 - idx
]
360 : Fvconcat (2, args
));
366 args
[idx
] = FONTSET_FALLBACK (fontset
);
367 FONTSET_FALLBACK (fontset
)
368 = NILP (args
[idx
]) ? args
[1 - idx
] : Fvconcat (2, args
);
374 fontset_compare_rfontdef (const void *val1
, const void *val2
)
376 return (RFONT_DEF_SCORE (*(Lisp_Object
*) val1
)
377 - RFONT_DEF_SCORE (*(Lisp_Object
*) val2
));
380 /* Update FONT-GROUP which has this form:
381 [ CHARSET-ORDERED-LIST-TICK PREFERRED-RFONT-DEF
382 RFONT-DEF0 RFONT-DEF1 ... ]
383 Reorder RFONT-DEFs according to the current language, and update
384 CHARSET-ORDERED-LIST-TICK.
386 If PREFERRED_FAMILY is not nil, that family has the higher priority
387 if the encoding charsets or languages in font-specs are the same. */
390 reorder_font_vector (Lisp_Object font_group
, struct font
*font
)
392 Lisp_Object vec
, font_object
;
395 int score_changed
= 0;
398 XSETFONT (font_object
, font
);
402 vec
= XCDR (font_group
);
404 /* Exclude the tailing nil element from the reordering. */
405 if (NILP (AREF (vec
, size
- 1)))
408 for (i
= 0; i
< size
; i
++)
410 Lisp_Object rfont_def
= AREF (vec
, i
);
411 Lisp_Object font_def
= RFONT_DEF_FONT_DEF (rfont_def
);
412 Lisp_Object font_spec
= FONT_DEF_SPEC (font_def
);
413 int score
= RFONT_DEF_SCORE (rfont_def
) & 0xFF;
414 Lisp_Object otf_spec
= Ffont_get (font_spec
, QCotf
);
416 if (! NILP (otf_spec
))
417 /* A font-spec with :otf is preferable regardless of encoding
420 else if (! font_match_p (font_spec
, font_object
))
422 Lisp_Object encoding
= FONT_DEF_ENCODING (font_def
);
424 if (! NILP (encoding
))
428 for (tail
= Vcharset_ordered_list
;
429 ! EQ (tail
, Vcharset_non_preferred_head
) && CONSP (tail
);
430 score
+= 0x100, tail
= XCDR (tail
))
431 if (EQ (encoding
, XCAR (tail
)))
436 Lisp_Object lang
= Ffont_get (font_spec
, QClang
);
439 && ! EQ (lang
, Vcurrent_iso639_language
)
440 && (! CONSP (Vcurrent_iso639_language
)
441 || NILP (Fmemq (lang
, Vcurrent_iso639_language
))))
445 if (RFONT_DEF_SCORE (rfont_def
) != score
)
447 RFONT_DEF_SET_SCORE (rfont_def
, score
);
453 qsort (XVECTOR (vec
)->contents
, size
, sizeof (Lisp_Object
),
454 fontset_compare_rfontdef
);
455 XSETCAR (font_group
, make_number (charset_ordered_list_tick
));
458 /* Return a font-group (actually a cons (-1 . FONT-GROUP-VECTOR)) for
459 character C in FONTSET. If C is -1, return a fallback font-group.
460 If C is not -1, the value may be Qt (FONTSET doesn't have a font
461 for C even in the fallback group, or 0 (a font for C may be found
462 only in the fallback group). */
465 fontset_get_font_group (Lisp_Object fontset
, int c
)
467 Lisp_Object font_group
;
468 Lisp_Object base_fontset
;
469 int from
= 0, to
= MAX_CHAR
, i
;
471 xassert (! BASE_FONTSET_P (fontset
));
473 font_group
= CHAR_TABLE_REF (fontset
, c
);
475 font_group
= FONTSET_FALLBACK (fontset
);
476 if (! NILP (font_group
))
478 base_fontset
= FONTSET_BASE (fontset
);
480 font_group
= char_table_ref_and_range (base_fontset
, c
, &from
, &to
);
482 font_group
= FONTSET_FALLBACK (base_fontset
);
483 if (NILP (font_group
))
485 font_group
= make_number (0);
487 char_table_set_range (fontset
, from
, to
, font_group
);
490 font_group
= Fcopy_sequence (font_group
);
491 for (i
= 0; i
< ASIZE (font_group
); i
++)
492 if (! NILP (AREF (font_group
, i
)))
494 Lisp_Object rfont_def
;
496 RFONT_DEF_NEW (rfont_def
, AREF (font_group
, i
));
497 /* Remember the original order. */
498 RFONT_DEF_SET_SCORE (rfont_def
, i
);
499 ASET (font_group
, i
, rfont_def
);
501 font_group
= Fcons (make_number (-1), font_group
);
503 char_table_set_range (fontset
, from
, to
, font_group
);
505 FONTSET_FALLBACK (fontset
) = font_group
;
509 /* Return RFONT-DEF (vector) in the realized fontset FONTSET for the
510 character C. If no font is found, return Qnil if there's a
511 possibility that the default fontset or the fallback font groups
512 have a proper font, and return Qt if not.
514 If a font is found but is not yet opened, open it (if FACE is not
515 NULL) or return Qnil (if FACE is NULL).
517 ID is a charset-id that must be preferred, or -1 meaning no
520 If FALLBACK is nonzero, search only fallback fonts. */
523 fontset_find_font (Lisp_Object fontset
, int c
, struct face
*face
, int id
, int fallback
)
525 Lisp_Object vec
, font_group
;
526 int i
, charset_matched
= 0, found_index
;
527 FRAME_PTR f
= (FRAMEP (FONTSET_FRAME (fontset
))
528 ? XFRAME (FONTSET_FRAME (fontset
)) : XFRAME (selected_frame
));
529 Lisp_Object rfont_def
;
531 font_group
= fontset_get_font_group (fontset
, fallback
? -1 : c
);
532 if (! CONSP (font_group
))
534 vec
= XCDR (font_group
);
535 if (ASIZE (vec
) == 0)
540 if (XINT (XCAR (font_group
)) != charset_ordered_list_tick
)
541 /* We have just created the font-group,
542 or the charset priorities were changed. */
543 reorder_font_vector (font_group
, face
->ascii_face
->font
);
545 /* Find a spec matching with the charset ID to try at
547 for (i
= 0; i
< ASIZE (vec
); i
++)
549 Lisp_Object repertory
;
551 rfont_def
= AREF (vec
, i
);
552 if (NILP (rfont_def
))
554 repertory
= FONT_DEF_REPERTORY (RFONT_DEF_FONT_DEF (rfont_def
));
556 if (XINT (repertory
) == id
)
564 /* Find the first available font in the vector of RFONT-DEF. */
565 for (i
= 0; i
< ASIZE (vec
); i
++)
567 Lisp_Object font_def
;
568 Lisp_Object font_entity
, font_object
;
573 if (charset_matched
> 0)
575 /* Try the element matching with the charset ID at first. */
576 found_index
= charset_matched
;
577 /* Make this negative so that we don't come here in the
579 charset_matched
= - charset_matched
;
580 /* We must try the first element in the next loop. */
584 else if (i
== - charset_matched
)
586 /* We have already tried this element and the followings
587 that have the same font specifications in the first
588 iteration. So, skip them all. */
589 rfont_def
= AREF (vec
, i
);
590 font_def
= RFONT_DEF_FONT_DEF (rfont_def
);
591 for (; i
+ 1 < ASIZE (vec
); i
++)
593 rfont_def
= AREF (vec
, i
+ 1);
594 if (NILP (rfont_def
))
596 if (! EQ (RFONT_DEF_FONT_DEF (rfont_def
), font_def
))
602 rfont_def
= AREF (vec
, found_index
);
603 if (NILP (rfont_def
))
607 /* This is a sign of not to try the other fonts. */
610 if (INTEGERP (RFONT_DEF_FACE (rfont_def
))
611 && XINT (RFONT_DEF_FACE (rfont_def
)) < 0)
612 /* We couldn't open this font last time. */
615 font_object
= RFONT_DEF_OBJECT (rfont_def
);
616 if (NILP (font_object
))
618 font_def
= RFONT_DEF_FONT_DEF (rfont_def
);
621 /* We have not yet opened the font. */
623 /* Find a font best-matching with the spec without checking
624 the support of the character C. That checking is costly,
625 and even without the checking, the found font supports C
626 in high possibility. */
627 font_entity
= font_find_for_lface (f
, face
->lface
,
628 FONT_DEF_SPEC (font_def
), -1);
629 if (NILP (font_entity
))
631 /* Record that no font matches the spec. */
632 RFONT_DEF_SET_FACE (rfont_def
, -1);
635 font_object
= font_open_for_lface (f
, font_entity
, face
->lface
,
636 FONT_DEF_SPEC (font_def
));
637 if (NILP (font_object
))
639 /* Something strange happened, perhaps because of a
640 Font-backend problem. Too avoid crashing, record
641 that this spec is unsable. It may be better to find
642 another font of the same spec, but currently we don't
644 RFONT_DEF_SET_FACE (rfont_def
, -1);
647 RFONT_DEF_SET_OBJECT (rfont_def
, font_object
);
650 if (font_has_char (f
, font_object
, c
))
653 /* Find a font already opened, maching with the current spec,
655 font_def
= RFONT_DEF_FONT_DEF (rfont_def
);
656 for (; found_index
+ 1 < ASIZE (vec
); found_index
++)
658 rfont_def
= AREF (vec
, found_index
+ 1);
659 if (NILP (rfont_def
))
661 if (! EQ (RFONT_DEF_FONT_DEF (rfont_def
), font_def
))
663 font_object
= RFONT_DEF_OBJECT (rfont_def
);
664 if (! NILP (font_object
) && font_has_char (f
, font_object
, c
))
671 /* Find a font-entity with the current spec and supporting C. */
672 font_entity
= font_find_for_lface (f
, face
->lface
,
673 FONT_DEF_SPEC (font_def
), c
);
674 if (! NILP (font_entity
))
676 /* We found a font. Open it and insert a new element for
681 font_object
= font_open_for_lface (f
, font_entity
, face
->lface
,
683 if (NILP (font_object
))
685 RFONT_DEF_NEW (rfont_def
, font_def
);
686 RFONT_DEF_SET_OBJECT (rfont_def
, font_object
);
687 RFONT_DEF_SET_SCORE (rfont_def
, RFONT_DEF_SCORE (rfont_def
));
688 new_vec
= Fmake_vector (make_number (ASIZE (vec
) + 1), Qnil
);
690 for (j
= 0; j
< found_index
; j
++)
691 ASET (new_vec
, j
, AREF (vec
, j
));
692 ASET (new_vec
, j
, rfont_def
);
693 for (j
++; j
< ASIZE (new_vec
); j
++)
694 ASET (new_vec
, j
, AREF (vec
, j
- 1));
695 XSETCDR (font_group
, new_vec
);
703 FONTSET_SET (fontset
, make_number (c
), make_number (0));
707 if (fallback
&& found_index
> 0)
709 /* The order of fonts in the fallback font-group is not that
710 important, and it is better to move the found font to the
711 first of the group so that the next try will find it
713 for (i
= found_index
; i
> 0; i
--)
714 ASET (vec
, i
, AREF (vec
, i
- 1));
715 ASET (vec
, 0, rfont_def
);
722 fontset_font (Lisp_Object fontset
, int c
, struct face
*face
, int id
)
724 Lisp_Object rfont_def
, default_rfont_def
;
725 Lisp_Object base_fontset
;
727 /* Try a font-group of FONTSET. */
728 FONT_DEFERRED_LOG ("current fontset: font for", make_number (c
), Qnil
);
729 rfont_def
= fontset_find_font (fontset
, c
, face
, id
, 0);
730 if (VECTORP (rfont_def
))
732 if (NILP (rfont_def
))
733 FONTSET_SET (fontset
, make_number (c
), make_number (0));
735 /* Try a font-group of the default fontset. */
736 base_fontset
= FONTSET_BASE (fontset
);
737 if (! EQ (base_fontset
, Vdefault_fontset
))
739 if (NILP (FONTSET_DEFAULT (fontset
)))
740 FONTSET_DEFAULT (fontset
)
741 = make_fontset (FONTSET_FRAME (fontset
), Qnil
, Vdefault_fontset
);
742 FONT_DEFERRED_LOG ("default fontset: font for", make_number (c
), Qnil
);
744 = fontset_find_font (FONTSET_DEFAULT (fontset
), c
, face
, id
, 0);
745 if (VECTORP (default_rfont_def
))
746 return default_rfont_def
;
747 if (NILP (default_rfont_def
))
748 FONTSET_SET (FONTSET_DEFAULT (fontset
), make_number (c
),
752 /* Try a fallback font-group of FONTSET. */
753 if (! EQ (rfont_def
, Qt
))
755 FONT_DEFERRED_LOG ("current fallback: font for", make_number (c
), Qnil
);
756 rfont_def
= fontset_find_font (fontset
, c
, face
, id
, 1);
757 if (VECTORP (rfont_def
))
759 /* Remember that FONTSET has no font for C. */
760 FONTSET_SET (fontset
, make_number (c
), Qt
);
763 /* Try a fallback font-group of the default fontset. */
764 if (! EQ (base_fontset
, Vdefault_fontset
)
765 && ! EQ (default_rfont_def
, Qt
))
767 FONT_DEFERRED_LOG ("default fallback: font for", make_number (c
), Qnil
);
768 rfont_def
= fontset_find_font (FONTSET_DEFAULT (fontset
), c
, face
, id
, 1);
769 if (VECTORP (rfont_def
))
771 /* Remember that the default fontset has no font for C. */
772 FONTSET_SET (FONTSET_DEFAULT (fontset
), make_number (c
), Qt
);
778 /* Return a newly created fontset with NAME. If BASE is nil, make a
779 base fontset. Otherwise make a realized fontset whose base is
783 make_fontset (Lisp_Object frame
, Lisp_Object name
, Lisp_Object base
)
786 int size
= ASIZE (Vfontset_table
);
787 int id
= next_fontset_id
;
789 /* Find a free slot in Vfontset_table. Usually, next_fontset_id is
790 the next available fontset ID. So it is expected that this loop
791 terminates quickly. In addition, as the last element of
792 Vfontset_table is always nil, we don't have to check the range of
794 while (!NILP (AREF (Vfontset_table
, id
))) id
++;
797 Vfontset_table
= larger_vector (Vfontset_table
, size
+ 32, Qnil
);
799 fontset
= Fmake_char_table (Qfontset
, Qnil
);
801 FONTSET_ID (fontset
) = make_number (id
);
804 FONTSET_NAME (fontset
) = name
;
808 FONTSET_NAME (fontset
) = Qnil
;
809 FONTSET_FRAME (fontset
) = frame
;
810 FONTSET_BASE (fontset
) = base
;
813 ASET (Vfontset_table
, id
, fontset
);
814 next_fontset_id
= id
+ 1;
819 /********** INTERFACES TO xfaces.c, xfns.c, and dispextern.h **********/
821 /* Return the name of the fontset who has ID. */
824 fontset_name (int id
)
828 fontset
= FONTSET_FROM_ID (id
);
829 return FONTSET_NAME (fontset
);
833 /* Return the ASCII font name of the fontset who has ID. */
836 fontset_ascii (int id
)
838 Lisp_Object fontset
, elt
;
840 fontset
= FONTSET_FROM_ID (id
);
841 elt
= FONTSET_ASCII (fontset
);
848 free_realized_fontset (FRAME_PTR f
, Lisp_Object fontset
)
853 for (tail
= FONTSET_OBJLIST (fontset
); CONSP (tail
); tail
= XCDR (tail
))
855 xassert (FONT_OBJECT_P (XCAR (tail
)));
856 font_close_object (f
, XCAR (tail
));
860 /* Free fontset of FACE defined on frame F. Called from
861 free_realized_face. */
864 free_face_fontset (FRAME_PTR f
, struct face
*face
)
868 fontset
= FONTSET_FROM_ID (face
->fontset
);
871 xassert (! BASE_FONTSET_P (fontset
));
872 xassert (f
== XFRAME (FONTSET_FRAME (fontset
)));
873 free_realized_fontset (f
, fontset
);
874 ASET (Vfontset_table
, face
->fontset
, Qnil
);
875 if (face
->fontset
< next_fontset_id
)
876 next_fontset_id
= face
->fontset
;
877 if (! NILP (FONTSET_DEFAULT (fontset
)))
879 int id
= XINT (FONTSET_ID (FONTSET_DEFAULT (fontset
)));
881 fontset
= AREF (Vfontset_table
, id
);
882 xassert (!NILP (fontset
) && ! BASE_FONTSET_P (fontset
));
883 xassert (f
== XFRAME (FONTSET_FRAME (fontset
)));
884 free_realized_fontset (f
, fontset
);
885 ASET (Vfontset_table
, id
, Qnil
);
886 if (id
< next_fontset_id
)
887 next_fontset_id
= face
->fontset
;
893 /* Return 1 if FACE is suitable for displaying character C.
894 Otherwise return 0. Called from the macro FACE_SUITABLE_FOR_CHAR_P
895 when C is not an ASCII character. */
898 face_suitable_for_char_p (struct face
*face
, int c
)
900 Lisp_Object fontset
, rfont_def
;
902 fontset
= FONTSET_FROM_ID (face
->fontset
);
903 rfont_def
= fontset_font (fontset
, c
, NULL
, -1);
904 return (VECTORP (rfont_def
)
905 && INTEGERP (RFONT_DEF_FACE (rfont_def
))
906 && face
->id
== XINT (RFONT_DEF_FACE (rfont_def
)));
910 /* Return ID of face suitable for displaying character C on frame F.
911 FACE must be reazlied for ASCII characters in advance. Called from
912 the macro FACE_FOR_CHAR. */
915 face_for_char (FRAME_PTR f
, struct face
*face
, int c
, int pos
, Lisp_Object object
)
917 Lisp_Object fontset
, rfont_def
, charset
;
921 /* If face->fontset is negative (that happens when no font is found
922 for face), just return face->ascii_face because we can't do
923 anything. Perhaps, we should fix the callers to assure
924 that face->fontset is always valid. */
925 if (ASCII_CHAR_P (c
) || face
->fontset
< 0)
926 return face
->ascii_face
->id
;
928 xassert (fontset_id_valid_p (face
->fontset
));
929 fontset
= FONTSET_FROM_ID (face
->fontset
);
930 xassert (!BASE_FONTSET_P (fontset
));
939 charset
= Fget_char_property (make_number (pos
), Qcharset
, object
);
940 if (CHARSETP (charset
))
944 val
= assq_no_quit (charset
, Vfont_encoding_charset_alist
);
945 if (CONSP (val
) && CHARSETP (XCDR (val
)))
946 charset
= XCDR (val
);
947 id
= XINT (CHARSET_SYMBOL_ID (charset
));
953 rfont_def
= fontset_font (fontset
, c
, face
, id
);
954 if (VECTORP (rfont_def
))
956 if (INTEGERP (RFONT_DEF_FACE (rfont_def
)))
957 face_id
= XINT (RFONT_DEF_FACE (rfont_def
));
960 Lisp_Object font_object
;
962 font_object
= RFONT_DEF_OBJECT (rfont_def
);
963 face_id
= face_for_font (f
, font_object
, face
);
964 RFONT_DEF_SET_FACE (rfont_def
, face_id
);
969 if (INTEGERP (FONTSET_NOFONT_FACE (fontset
)))
970 face_id
= XINT (FONTSET_NOFONT_FACE (fontset
));
973 face_id
= face_for_font (f
, Qnil
, face
);
974 FONTSET_NOFONT_FACE (fontset
) = make_number (face_id
);
977 xassert (face_id
>= 0);
983 font_for_char (struct face
*face
, int c
, int pos
, Lisp_Object object
)
985 Lisp_Object fontset
, rfont_def
, charset
;
988 if (ASCII_CHAR_P (c
))
990 Lisp_Object font_object
;
992 XSETFONT (font_object
, face
->ascii_face
->font
);
996 xassert (fontset_id_valid_p (face
->fontset
));
997 fontset
= FONTSET_FROM_ID (face
->fontset
);
998 xassert (!BASE_FONTSET_P (fontset
));
1006 charset
= Fget_char_property (make_number (pos
), Qcharset
, object
);
1007 if (CHARSETP (charset
))
1011 val
= assq_no_quit (charset
, Vfont_encoding_charset_alist
);
1012 if (CONSP (val
) && CHARSETP (XCDR (val
)))
1013 charset
= XCDR (val
);
1014 id
= XINT (CHARSET_SYMBOL_ID (charset
));
1020 rfont_def
= fontset_font (fontset
, c
, face
, id
);
1021 return (VECTORP (rfont_def
)
1022 ? RFONT_DEF_OBJECT (rfont_def
)
1027 /* Make a realized fontset for ASCII face FACE on frame F from the
1028 base fontset BASE_FONTSET_ID. If BASE_FONTSET_ID is -1, use the
1029 default fontset as the base. Value is the id of the new fontset.
1030 Called from realize_x_face. */
1033 make_fontset_for_ascii_face (FRAME_PTR f
, int base_fontset_id
, struct face
*face
)
1035 Lisp_Object base_fontset
, fontset
, frame
;
1037 XSETFRAME (frame
, f
);
1038 if (base_fontset_id
>= 0)
1040 base_fontset
= FONTSET_FROM_ID (base_fontset_id
);
1041 if (!BASE_FONTSET_P (base_fontset
))
1042 base_fontset
= FONTSET_BASE (base_fontset
);
1043 if (! BASE_FONTSET_P (base_fontset
))
1047 base_fontset
= Vdefault_fontset
;
1049 fontset
= make_fontset (frame
, Qnil
, base_fontset
);
1050 return XINT (FONTSET_ID (fontset
));
1055 /* Cache data used by fontset_pattern_regexp. The car part is a
1056 pattern string containing at least one wild card, the cdr part is
1057 the corresponding regular expression. */
1058 static Lisp_Object Vcached_fontset_data
;
1060 #define CACHED_FONTSET_NAME ((char *) SDATA (XCAR (Vcached_fontset_data)))
1061 #define CACHED_FONTSET_REGEX (XCDR (Vcached_fontset_data))
1063 /* If fontset name PATTERN contains any wild card, return regular
1064 expression corresponding to PATTERN. */
1067 fontset_pattern_regexp (Lisp_Object pattern
)
1069 if (!strchr ((char *) SDATA (pattern
), '*')
1070 && !strchr ((char *) SDATA (pattern
), '?'))
1071 /* PATTERN does not contain any wild cards. */
1074 if (!CONSP (Vcached_fontset_data
)
1075 || strcmp ((char *) SDATA (pattern
), CACHED_FONTSET_NAME
))
1077 /* We must at first update the cached data. */
1078 unsigned char *regex
, *p0
, *p1
;
1079 int ndashes
= 0, nstars
= 0, nescs
= 0;
1081 for (p0
= SDATA (pattern
); *p0
; p0
++)
1085 else if (*p0
== '*')
1088 || *p0
== '.' || *p0
== '\\'
1089 || *p0
== '+' || *p0
== '^'
1094 /* If PATTERN is not full XLFD we conert "*" to ".*". Otherwise
1095 we convert "*" to "[^-]*" which is much faster in regular
1096 expression matching. */
1098 p1
= regex
= (unsigned char *) alloca (SBYTES (pattern
) + 2 * nstars
+ 2 * nescs
+ 1);
1100 p1
= regex
= (unsigned char *) alloca (SBYTES (pattern
) + 5 * nstars
+ 2 * nescs
+ 1);
1103 for (p0
= SDATA (pattern
); *p0
; p0
++)
1110 *p1
++ = '[', *p1
++ = '^', *p1
++ = '-', *p1
++ = ']';
1113 else if (*p0
== '?')
1116 || *p0
== '.' || *p0
== '\\'
1117 || *p0
== '+' || *p0
== '^'
1119 *p1
++ = '\\', *p1
++ = *p0
;
1126 Vcached_fontset_data
= Fcons (build_string ((char *) SDATA (pattern
)),
1127 build_string ((char *) regex
));
1130 return CACHED_FONTSET_REGEX
;
1133 /* Return ID of the base fontset named NAME. If there's no such
1134 fontset, return -1. NAME_PATTERN specifies how to treat NAME as this:
1135 0: pattern containing '*' and '?' as wildcards
1136 1: regular expression
1137 2: literal fontset name
1141 fs_query_fontset (Lisp_Object name
, int name_pattern
)
1146 name
= Fdowncase (name
);
1147 if (name_pattern
!= 1)
1149 tem
= Frassoc (name
, Vfontset_alias_alist
);
1151 tem
= Fassoc (name
, Vfontset_alias_alist
);
1152 if (CONSP (tem
) && STRINGP (XCAR (tem
)))
1154 else if (name_pattern
== 0)
1156 tem
= fontset_pattern_regexp (name
);
1165 for (i
= 0; i
< ASIZE (Vfontset_table
); i
++)
1167 Lisp_Object fontset
, this_name
;
1169 fontset
= FONTSET_FROM_ID (i
);
1171 || !BASE_FONTSET_P (fontset
))
1174 this_name
= FONTSET_NAME (fontset
);
1175 if (name_pattern
== 1
1176 ? fast_string_match_ignore_case (name
, this_name
) >= 0
1177 : !xstrcasecmp (SDATA (name
), SDATA (this_name
)))
1184 DEFUN ("query-fontset", Fquery_fontset
, Squery_fontset
, 1, 2, 0,
1185 doc
: /* Return the name of a fontset that matches PATTERN.
1186 The value is nil if there is no matching fontset.
1187 PATTERN can contain `*' or `?' as a wildcard
1188 just as X font name matching algorithm allows.
1189 If REGEXPP is non-nil, PATTERN is a regular expression. */)
1190 (Lisp_Object pattern
, Lisp_Object regexpp
)
1192 Lisp_Object fontset
;
1195 (*check_window_system_func
) ();
1197 CHECK_STRING (pattern
);
1199 if (SCHARS (pattern
) == 0)
1202 id
= fs_query_fontset (pattern
, !NILP (regexpp
));
1206 fontset
= FONTSET_FROM_ID (id
);
1207 return FONTSET_NAME (fontset
);
1210 /* Return a list of base fontset names matching PATTERN on frame F. */
1213 list_fontsets (FRAME_PTR f
, Lisp_Object pattern
, int size
)
1215 Lisp_Object frame
, regexp
, val
;
1218 XSETFRAME (frame
, f
);
1220 regexp
= fontset_pattern_regexp (pattern
);
1223 for (id
= 0; id
< ASIZE (Vfontset_table
); id
++)
1225 Lisp_Object fontset
, name
;
1227 fontset
= FONTSET_FROM_ID (id
);
1229 || !BASE_FONTSET_P (fontset
)
1230 || !EQ (frame
, FONTSET_FRAME (fontset
)))
1232 name
= FONTSET_NAME (fontset
);
1234 if (STRINGP (regexp
)
1235 ? (fast_string_match (regexp
, name
) < 0)
1236 : strcmp ((char *) SDATA (pattern
), (char *) SDATA (name
)))
1239 val
= Fcons (Fcopy_sequence (FONTSET_NAME (fontset
)), val
);
1246 /* Free all realized fontsets whose base fontset is BASE. */
1249 free_realized_fontsets (Lisp_Object base
)
1254 /* For the moment, this doesn't work because free_realized_face
1255 doesn't remove FACE from a cache. Until we find a solution, we
1256 suppress this code, and simply use Fclear_face_cache even though
1257 that is not efficient. */
1259 for (id
= 0; id
< ASIZE (Vfontset_table
); id
++)
1261 Lisp_Object
this = AREF (Vfontset_table
, id
);
1263 if (EQ (FONTSET_BASE (this), base
))
1267 for (tail
= FONTSET_FACE_ALIST (this); CONSP (tail
);
1270 FRAME_PTR f
= XFRAME (FONTSET_FRAME (this));
1271 int face_id
= XINT (XCDR (XCAR (tail
)));
1272 struct face
*face
= FACE_FROM_ID (f
, face_id
);
1274 /* Face THIS itself is also freed by the following call. */
1275 free_realized_face (f
, face
);
1281 /* But, we don't have to call Fclear_face_cache if no fontset has
1282 been realized from BASE. */
1283 for (id
= 0; id
< ASIZE (Vfontset_table
); id
++)
1285 Lisp_Object
this = AREF (Vfontset_table
, id
);
1287 if (CHAR_TABLE_P (this) && EQ (FONTSET_BASE (this), base
))
1289 Fclear_face_cache (Qt
);
1297 /* Check validity of NAME as a fontset name and return the
1298 corresponding fontset. If not valid, signal an error.
1300 If NAME is t, return Vdefault_fontset. If NAME is nil, return the
1303 Set *FRAME to the actual frame. */
1306 check_fontset_name (Lisp_Object name
, Lisp_Object
*frame
)
1311 *frame
= selected_frame
;
1312 CHECK_LIVE_FRAME (*frame
);
1315 return Vdefault_fontset
;
1318 id
= FRAME_FONTSET (XFRAME (*frame
));
1322 CHECK_STRING (name
);
1323 /* First try NAME as literal. */
1324 id
= fs_query_fontset (name
, 2);
1326 /* For backward compatibility, try again NAME as pattern. */
1327 id
= fs_query_fontset (name
, 0);
1329 error ("Fontset `%s' does not exist", SDATA (name
));
1331 return FONTSET_FROM_ID (id
);
1335 accumulate_script_ranges (Lisp_Object arg
, Lisp_Object range
, Lisp_Object val
)
1337 if (EQ (XCAR (arg
), val
))
1340 XSETCDR (arg
, Fcons (Fcons (XCAR (range
), XCDR (range
)), XCDR (arg
)));
1342 XSETCDR (arg
, Fcons (Fcons (range
, range
), XCDR (arg
)));
1347 /* Callback function for map_charset_chars in Fset_fontset_font.
1348 ARG is a vector [ FONTSET FONT_DEF ADD ASCII SCRIPT_RANGE_LIST ].
1350 In FONTSET, set FONT_DEF in a fashion specified by ADD for
1351 characters in RANGE and ranges in SCRIPT_RANGE_LIST before RANGE.
1352 The consumed ranges are poped up from SCRIPT_RANGE_LIST, and the
1353 new SCRIPT_RANGE_LIST is stored in ARG.
1355 If ASCII is nil, don't set FONT_DEF for ASCII characters. It is
1356 assured that SCRIPT_RANGE_LIST doesn't contain ASCII in that
1360 set_fontset_font (Lisp_Object arg
, Lisp_Object range
)
1362 Lisp_Object fontset
, font_def
, add
, ascii
, script_range_list
;
1363 int from
= XINT (XCAR (range
)), to
= XINT (XCDR (range
));
1365 fontset
= AREF (arg
, 0);
1366 font_def
= AREF (arg
, 1);
1367 add
= AREF (arg
, 2);
1368 ascii
= AREF (arg
, 3);
1369 script_range_list
= AREF (arg
, 4);
1371 if (NILP (ascii
) && from
< 0x80)
1376 range
= Fcons (make_number (0x80), XCDR (range
));
1379 #define SCRIPT_FROM XINT (XCAR (XCAR (script_range_list)))
1380 #define SCRIPT_TO XINT (XCDR (XCAR (script_range_list)))
1381 #define POP_SCRIPT_RANGE() script_range_list = XCDR (script_range_list)
1383 for (; CONSP (script_range_list
) && SCRIPT_TO
< from
; POP_SCRIPT_RANGE ())
1384 FONTSET_ADD (fontset
, XCAR (script_range_list
), font_def
, add
);
1385 if (CONSP (script_range_list
))
1387 if (SCRIPT_FROM
< from
)
1388 range
= Fcons (make_number (SCRIPT_FROM
), XCDR (range
));
1389 while (CONSP (script_range_list
) && SCRIPT_TO
<= to
)
1390 POP_SCRIPT_RANGE ();
1391 if (CONSP (script_range_list
) && SCRIPT_FROM
<= to
)
1392 XSETCAR (XCAR (script_range_list
), make_number (to
+ 1));
1395 FONTSET_ADD (fontset
, range
, font_def
, add
);
1396 ASET (arg
, 4, script_range_list
);
1399 static void update_auto_fontset_alist (Lisp_Object
, Lisp_Object
);
1402 DEFUN ("set-fontset-font", Fset_fontset_font
, Sset_fontset_font
, 3, 5, 0,
1404 Modify fontset NAME to use FONT-SPEC for TARGET characters.
1406 NAME is a fontset name string, nil for the fontset of FRAME, or t for
1407 the default fontset.
1409 TARGET may be a cons; (FROM . TO), where FROM and TO are characters.
1410 In that case, use FONT-SPEC for all characters in the range FROM and
1413 TARGET may be a script name symbol. In that case, use FONT-SPEC for
1414 all characters that belong to the script.
1416 TARGET may be a charset. In that case, use FONT-SPEC for all
1417 characters in the charset.
1419 TARGET may be nil. In that case, use FONT-SPEC for any characters for
1420 that no FONT-SPEC is specified.
1422 FONT-SPEC may one of these:
1423 * A font-spec object made by the function `font-spec' (which see).
1424 * A cons (FAMILY . REGISTRY), where FAMILY is a font family name and
1425 REGISTRY is a font registry name. FAMILY may contain foundry
1426 name, and REGISTRY may contain encoding name.
1427 * A font name string.
1428 * nil, which explicitly specifies that there's no font for TARGET.
1430 Optional 4th argument FRAME is a frame or nil for the selected frame
1431 that is concerned in the case that NAME is nil.
1433 Optional 5th argument ADD, if non-nil, specifies how to add FONT-SPEC
1434 to the font specifications for TARGET previously set. If it is
1435 `prepend', FONT-SPEC is prepended. If it is `append', FONT-SPEC is
1436 appended. By default, FONT-SPEC overrides the previous settings. */)
1437 (Lisp_Object name
, Lisp_Object target
, Lisp_Object font_spec
, Lisp_Object frame
, Lisp_Object add
)
1439 Lisp_Object fontset
;
1440 Lisp_Object font_def
, registry
, family
;
1441 Lisp_Object range_list
;
1442 struct charset
*charset
= NULL
;
1443 Lisp_Object fontname
;
1444 int ascii_changed
= 0;
1446 fontset
= check_fontset_name (name
, &frame
);
1449 if (CONSP (font_spec
))
1451 Lisp_Object spec
= Ffont_spec (0, NULL
);
1453 font_parse_family_registry (XCAR (font_spec
), XCDR (font_spec
), spec
);
1455 fontname
= Ffont_xlfd_name (font_spec
, Qnil
);
1457 else if (STRINGP (font_spec
))
1459 Lisp_Object args
[2];
1461 fontname
= font_spec
;
1463 args
[1] = font_spec
;
1464 font_spec
= Ffont_spec (2, args
);
1466 else if (FONT_SPEC_P (font_spec
))
1467 fontname
= Ffont_xlfd_name (font_spec
, Qnil
);
1468 else if (! NILP (font_spec
))
1469 Fsignal (Qfont
, list2 (build_string ("Invalid font-spec"), font_spec
));
1471 if (! NILP (font_spec
))
1473 Lisp_Object encoding
, repertory
;
1475 family
= AREF (font_spec
, FONT_FAMILY_INDEX
);
1476 if (! NILP (family
) )
1477 family
= SYMBOL_NAME (family
);
1478 registry
= AREF (font_spec
, FONT_REGISTRY_INDEX
);
1479 if (! NILP (registry
))
1480 registry
= Fdowncase (SYMBOL_NAME (registry
));
1481 encoding
= find_font_encoding (concat3 (family
, build_string ("-"),
1483 if (NILP (encoding
))
1486 if (SYMBOLP (encoding
))
1488 CHECK_CHARSET (encoding
);
1489 encoding
= repertory
= CHARSET_SYMBOL_ID (encoding
);
1493 repertory
= XCDR (encoding
);
1494 encoding
= XCAR (encoding
);
1495 CHECK_CHARSET (encoding
);
1496 encoding
= CHARSET_SYMBOL_ID (encoding
);
1497 if (! NILP (repertory
) && SYMBOLP (repertory
))
1499 CHECK_CHARSET (repertory
);
1500 repertory
= CHARSET_SYMBOL_ID (repertory
);
1503 FONT_DEF_NEW (font_def
, font_spec
, encoding
, repertory
);
1508 if (CHARACTERP (target
))
1510 if (XFASTINT (target
) < 0x80)
1511 error ("Can't set a font for partial ASCII range");
1512 range_list
= Fcons (Fcons (target
, target
), Qnil
);
1514 else if (CONSP (target
))
1516 Lisp_Object from
, to
;
1518 from
= Fcar (target
);
1520 CHECK_CHARACTER (from
);
1521 CHECK_CHARACTER (to
);
1522 if (XFASTINT (from
) < 0x80)
1524 if (XFASTINT (from
) != 0 || XFASTINT (to
) < 0x7F)
1525 error ("Can't set a font for partial ASCII range");
1528 range_list
= Fcons (target
, Qnil
);
1530 else if (SYMBOLP (target
) && !NILP (target
))
1532 Lisp_Object script_list
;
1536 script_list
= XCHAR_TABLE (Vchar_script_table
)->extras
[0];
1537 if (! NILP (Fmemq (target
, script_list
)))
1539 if (EQ (target
, Qlatin
))
1541 val
= Fcons (target
, Qnil
);
1542 map_char_table (accumulate_script_ranges
, Qnil
, Vchar_script_table
,
1544 range_list
= Fnreverse (XCDR (val
));
1546 if (CHARSETP (target
))
1548 CHECK_CHARSET_GET_CHARSET (target
, charset
);
1549 if (charset
->ascii_compatible_p
)
1552 else if (NILP (range_list
))
1553 error ("Invalid script or charset name: %s",
1554 SDATA (SYMBOL_NAME (target
)));
1556 else if (NILP (target
))
1557 range_list
= Fcons (Qnil
, Qnil
);
1559 error ("Invalid target for setting a font");
1565 if (NILP (font_spec
))
1566 error ("Can't set ASCII font to nil");
1567 val
= CHAR_TABLE_REF (fontset
, 0);
1568 if (! NILP (val
) && EQ (add
, Qappend
))
1569 /* We are going to change just an additional font for ASCII. */
1577 arg
= Fmake_vector (make_number (5), Qnil
);
1578 ASET (arg
, 0, fontset
);
1579 ASET (arg
, 1, font_def
);
1581 ASET (arg
, 3, ascii_changed
? Qt
: Qnil
);
1582 ASET (arg
, 4, range_list
);
1584 map_charset_chars (set_fontset_font
, Qnil
, arg
, charset
,
1585 CHARSET_MIN_CODE (charset
),
1586 CHARSET_MAX_CODE (charset
));
1587 range_list
= AREF (arg
, 4);
1589 for (; CONSP (range_list
); range_list
= XCDR (range_list
))
1590 FONTSET_ADD (fontset
, XCAR (range_list
), font_def
, add
);
1594 Lisp_Object tail
, frame
, alist
;
1595 int fontset_id
= XINT (FONTSET_ID (fontset
));
1597 FONTSET_ASCII (fontset
) = fontname
;
1598 name
= FONTSET_NAME (fontset
);
1599 FOR_EACH_FRAME (tail
, frame
)
1601 FRAME_PTR f
= XFRAME (frame
);
1602 Lisp_Object font_object
;
1605 if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
))
1607 if (fontset_id
!= FRAME_FONTSET (f
))
1609 face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
1611 font_object
= font_load_for_lface (f
, face
->lface
, font_spec
);
1613 font_object
= font_open_by_spec (f
, font_spec
);
1614 if (! NILP (font_object
))
1616 update_auto_fontset_alist (font_object
, fontset
);
1617 alist
= Fcons (Fcons (Qfont
, Fcons (name
, font_object
)), Qnil
);
1618 Fmodify_frame_parameters (frame
, alist
);
1623 /* Free all realized fontsets whose base is FONTSET. This way, the
1624 specified character(s) are surely redisplayed by a correct
1626 free_realized_fontsets (fontset
);
1632 DEFUN ("new-fontset", Fnew_fontset
, Snew_fontset
, 2, 2, 0,
1633 doc
: /* Create a new fontset NAME from font information in FONTLIST.
1635 FONTLIST is an alist of scripts vs the corresponding font specification list.
1636 Each element of FONTLIST has the form (SCRIPT FONT-SPEC ...), where a
1637 character of SCRIPT is displayed by a font that matches one of
1640 SCRIPT is a symbol that appears in the first extra slot of the
1641 char-table `char-script-table'.
1643 FONT-SPEC is a vector, a cons, or a string. See the documentation of
1644 `set-fontset-font' for the meaning. */)
1645 (Lisp_Object name
, Lisp_Object fontlist
)
1647 Lisp_Object fontset
;
1650 CHECK_STRING (name
);
1651 CHECK_LIST (fontlist
);
1653 name
= Fdowncase (name
);
1654 id
= fs_query_fontset (name
, 0);
1657 Lisp_Object font_spec
= Ffont_spec (0, NULL
);
1658 Lisp_Object short_name
;
1662 if (font_parse_xlfd ((char *) SDATA (name
), font_spec
) < 0)
1663 error ("Fontset name must be in XLFD format");
1664 short_name
= AREF (font_spec
, FONT_REGISTRY_INDEX
);
1665 if (strncmp ((char *) SDATA (SYMBOL_NAME (short_name
)), "fontset-", 8)
1666 || SBYTES (SYMBOL_NAME (short_name
)) < 9)
1667 error ("Registry field of fontset name must be \"fontset-*\"");
1668 Vfontset_alias_alist
= Fcons (Fcons (name
, SYMBOL_NAME (short_name
)),
1669 Vfontset_alias_alist
);
1670 ASET (font_spec
, FONT_REGISTRY_INDEX
, Qiso8859_1
);
1671 fontset
= make_fontset (Qnil
, name
, Qnil
);
1672 len
= font_unparse_xlfd (font_spec
, 0, xlfd
, 256);
1674 error ("Invalid fontset name (perhaps too long): %s", SDATA (name
));
1675 FONTSET_ASCII (fontset
) = make_unibyte_string (xlfd
, len
);
1679 fontset
= FONTSET_FROM_ID (id
);
1680 free_realized_fontsets (fontset
);
1681 Fset_char_table_range (fontset
, Qt
, Qnil
);
1684 for (; ! NILP (fontlist
); fontlist
= Fcdr (fontlist
))
1686 Lisp_Object elt
, script
;
1688 elt
= Fcar (fontlist
);
1689 script
= Fcar (elt
);
1691 if (CONSP (elt
) && (NILP (XCDR (elt
)) || CONSP (XCDR (elt
))))
1692 for (; CONSP (elt
); elt
= XCDR (elt
))
1693 Fset_fontset_font (name
, script
, XCAR (elt
), Qnil
, Qappend
);
1695 Fset_fontset_font (name
, script
, elt
, Qnil
, Qappend
);
1701 /* Alist of automatically created fontsets. Each element is a cons
1702 (FONT-SPEC . FONTSET-ID). */
1703 static Lisp_Object auto_fontset_alist
;
1705 /* Number of automatically created fontsets. */
1706 static int num_auto_fontsets
;
1708 /* Retun a fontset synthesized from FONT-OBJECT. This is called from
1709 x_new_font when FONT-OBJECT is used for the default ASCII font of a
1710 frame, and the returned fontset is used for the default fontset of
1711 that frame. The fontset specifies a font of the same registry as
1712 FONT-OBJECT for all characters in the repertory of the registry
1713 (see Vfont_encoding_alist). If the repertory is not known, the
1714 fontset specifies the font for all Latin characters assuming that a
1715 user intends to use FONT-OBJECT for Latin characters. */
1718 fontset_from_font (Lisp_Object font_object
)
1720 Lisp_Object font_name
= font_get_name (font_object
);
1721 Lisp_Object font_spec
= Fcopy_font_spec (font_object
);
1722 Lisp_Object registry
= AREF (font_spec
, FONT_REGISTRY_INDEX
);
1723 Lisp_Object fontset_spec
, alias
, name
, fontset
;
1726 val
= assoc_no_quit (font_spec
, auto_fontset_alist
);
1728 return XINT (FONTSET_ID (XCDR (val
)));
1729 if (num_auto_fontsets
++ == 0)
1730 alias
= intern ("fontset-startup");
1735 sprintf (temp
, "fontset-auto%d", num_auto_fontsets
- 1);
1736 alias
= intern (temp
);
1738 fontset_spec
= Fcopy_font_spec (font_spec
);
1739 ASET (fontset_spec
, FONT_REGISTRY_INDEX
, alias
);
1740 name
= Ffont_xlfd_name (fontset_spec
, Qnil
);
1743 fontset
= make_fontset (Qnil
, name
, Qnil
);
1744 Vfontset_alias_alist
= Fcons (Fcons (name
, SYMBOL_NAME (alias
)),
1745 Vfontset_alias_alist
);
1746 alias
= Fdowncase (AREF (font_object
, FONT_NAME_INDEX
));
1747 Vfontset_alias_alist
= Fcons (Fcons (name
, alias
), Vfontset_alias_alist
);
1748 auto_fontset_alist
= Fcons (Fcons (font_spec
, fontset
), auto_fontset_alist
);
1749 font_spec
= Ffont_spec (0, NULL
);
1750 ASET (font_spec
, FONT_REGISTRY_INDEX
, registry
);
1752 Lisp_Object target
= find_font_encoding (SYMBOL_NAME (registry
));
1755 target
= XCDR (target
);
1756 if (! CHARSETP (target
))
1758 Fset_fontset_font (name
, target
, font_spec
, Qnil
, Qnil
);
1759 Fset_fontset_font (name
, Qnil
, font_spec
, Qnil
, Qnil
);
1762 FONTSET_ASCII (fontset
) = font_name
;
1764 return XINT (FONTSET_ID (fontset
));
1768 /* Update auto_fontset_alist for FONTSET. When an ASCII font of
1769 FONTSET is changed, we delete an entry of FONTSET if any from
1770 auto_fontset_alist so that FONTSET is not re-used by
1771 fontset_from_font. */
1774 update_auto_fontset_alist (Lisp_Object font_object
, Lisp_Object fontset
)
1776 Lisp_Object prev
, tail
;
1778 for (prev
= Qnil
, tail
= auto_fontset_alist
; CONSP (tail
);
1779 prev
= tail
, tail
= XCDR (tail
))
1780 if (EQ (fontset
, XCDR (XCAR (tail
))))
1783 auto_fontset_alist
= XCDR (tail
);
1785 XSETCDR (prev
, XCDR (tail
));
1791 /* Return a cons (FONT-OBJECT . GLYPH-CODE).
1792 FONT-OBJECT is the font for the character at POSITION in the current
1793 buffer. This is computed from all the text properties and overlays
1794 that apply to POSITION. POSTION may be nil, in which case,
1795 FONT-SPEC is the font for displaying the character CH with the
1798 GLYPH-CODE is the glyph code in the font to use for the character.
1800 If the 2nd optional arg CH is non-nil, it is a character to check
1801 the font instead of the character at POSITION.
1803 It returns nil in the following cases:
1805 (1) The window system doesn't have a font for the character (thus
1806 it is displayed by an empty box).
1808 (2) The character code is invalid.
1810 (3) If POSITION is not nil, and the current buffer is not displayed
1813 In addition, the returned font name may not take into account of
1814 such redisplay engine hooks as what used in jit-lock-mode if
1815 POSITION is currently not visible. */
1818 DEFUN ("internal-char-font", Finternal_char_font
, Sinternal_char_font
, 1, 2, 0,
1819 doc
: /* For internal use only. */)
1820 (Lisp_Object position
, Lisp_Object ch
)
1822 EMACS_INT pos
, pos_byte
, dummy
;
1829 if (NILP (position
))
1831 CHECK_CHARACTER (ch
);
1833 f
= XFRAME (selected_frame
);
1834 face_id
= lookup_basic_face (f
, DEFAULT_FACE_ID
);
1840 Lisp_Object window
, charset
;
1843 CHECK_NUMBER_COERCE_MARKER (position
);
1844 pos
= XINT (position
);
1845 if (pos
< BEGV
|| pos
>= ZV
)
1846 args_out_of_range_3 (position
, make_number (BEGV
), make_number (ZV
));
1847 pos_byte
= CHAR_TO_BYTE (pos
);
1849 c
= FETCH_CHAR (pos_byte
);
1855 window
= Fget_buffer_window (Fcurrent_buffer (), Qnil
);
1858 w
= XWINDOW (window
);
1859 f
= XFRAME (w
->frame
);
1860 face_id
= face_at_buffer_position (w
, pos
, -1, -1, &dummy
,
1862 charset
= Fget_char_property (position
, Qcharset
, Qnil
);
1863 if (CHARSETP (charset
))
1864 cs_id
= XINT (CHARSET_SYMBOL_ID (charset
));
1868 if (! CHAR_VALID_P (c
, 0))
1870 face_id
= FACE_FOR_CHAR (f
, FACE_FROM_ID (f
, face_id
), c
, pos
, Qnil
);
1871 face
= FACE_FROM_ID (f
, face_id
);
1874 unsigned code
= face
->font
->driver
->encode_char (face
->font
, c
);
1875 Lisp_Object font_object
;
1876 /* Assignment to EMACS_INT stops GCC whining about limited range
1878 EMACS_INT cod
= code
;
1880 if (code
== FONT_INVALID_CODE
)
1882 XSETFONT (font_object
, face
->font
);
1883 if (cod
<= MOST_POSITIVE_FIXNUM
)
1884 return Fcons (font_object
, make_number (code
));
1885 return Fcons (font_object
, Fcons (make_number (code
>> 16),
1886 make_number (code
& 0xFFFF)));
1892 DEFUN ("fontset-info", Ffontset_info
, Sfontset_info
, 1, 2, 0,
1893 doc
: /* Return information about a fontset FONTSET on frame FRAME.
1895 FONTSET is a fontset name string, nil for the fontset of FRAME, or t
1896 for the default fontset. FRAME nil means the selected frame.
1898 The value is a char-table whose elements have this form:
1900 ((FONT OPENED-FONT ...) ...)
1902 FONT is a name of font specified for a range of characters.
1904 OPENED-FONT is a name of a font actually opened.
1906 The char-table has one extra slot. If FONTSET is not the default
1907 fontset, the value the extra slot is a char-table containing the
1908 information about the derived fonts from the default fontset. The
1909 format is the same as above. */)
1910 (Lisp_Object fontset
, Lisp_Object frame
)
1913 Lisp_Object
*realized
[2], fontsets
[2], tables
[2];
1914 Lisp_Object val
, elt
;
1917 (*check_window_system_func
) ();
1919 fontset
= check_fontset_name (fontset
, &frame
);
1922 /* Recode fontsets realized on FRAME from the base fontset FONTSET
1923 in the table `realized'. */
1924 realized
[0] = (Lisp_Object
*) alloca (sizeof (Lisp_Object
)
1925 * ASIZE (Vfontset_table
));
1926 for (i
= j
= 0; i
< ASIZE (Vfontset_table
); i
++)
1928 elt
= FONTSET_FROM_ID (i
);
1930 && EQ (FONTSET_BASE (elt
), fontset
)
1931 && EQ (FONTSET_FRAME (elt
), frame
))
1932 realized
[0][j
++] = elt
;
1934 realized
[0][j
] = Qnil
;
1936 realized
[1] = (Lisp_Object
*) alloca (sizeof (Lisp_Object
)
1937 * ASIZE (Vfontset_table
));
1938 for (i
= j
= 0; ! NILP (realized
[0][i
]); i
++)
1940 elt
= FONTSET_DEFAULT (realized
[0][i
]);
1942 realized
[1][j
++] = elt
;
1944 realized
[1][j
] = Qnil
;
1946 tables
[0] = Fmake_char_table (Qfontset_info
, Qnil
);
1947 fontsets
[0] = fontset
;
1948 if (!EQ (fontset
, Vdefault_fontset
))
1950 tables
[1] = Fmake_char_table (Qnil
, Qnil
);
1951 XCHAR_TABLE (tables
[0])->extras
[0] = tables
[1];
1952 fontsets
[1] = Vdefault_fontset
;
1955 /* Accumulate information of the fontset in TABLE. The format of
1956 each element is ((FONT-SPEC OPENED-FONT ...) ...). */
1957 for (k
= 0; k
<= 1; k
++)
1959 for (c
= 0; c
<= MAX_CHAR
; )
1961 int from
= c
, to
= MAX_5_BYTE_CHAR
;
1963 if (c
<= MAX_5_BYTE_CHAR
)
1965 val
= char_table_ref_and_range (fontsets
[k
], c
, &from
, &to
);
1969 val
= FONTSET_FALLBACK (fontsets
[k
]);
1976 /* At first, set ALIST to ((FONT-SPEC) ...). */
1977 for (alist
= Qnil
, i
= 0; i
< ASIZE (val
); i
++)
1978 if (! NILP (AREF (val
, i
)))
1979 alist
= Fcons (Fcons (FONT_DEF_SPEC (AREF (val
, i
)), Qnil
),
1981 alist
= Fnreverse (alist
);
1983 /* Then store opened font names to cdr of each elements. */
1984 for (i
= 0; ! NILP (realized
[k
][i
]); i
++)
1986 if (c
<= MAX_5_BYTE_CHAR
)
1987 val
= FONTSET_REF (realized
[k
][i
], c
);
1989 val
= FONTSET_FALLBACK (realized
[k
][i
]);
1990 if (! CONSP (val
) || ! VECTORP (XCDR (val
)))
1992 /* VAL: (int . [[FACE-ID FONT-DEF FONT-OBJECT int] ... ]) */
1994 for (j
= 0; j
< ASIZE (val
); j
++)
1996 elt
= AREF (val
, j
);
1997 if (FONT_OBJECT_P (RFONT_DEF_OBJECT (elt
)))
1999 Lisp_Object font_object
= RFONT_DEF_OBJECT (elt
);
2000 Lisp_Object slot
, name
;
2002 slot
= Fassq (RFONT_DEF_SPEC (elt
), alist
);
2003 name
= AREF (font_object
, FONT_NAME_INDEX
);
2004 if (NILP (Fmember (name
, XCDR (slot
))))
2005 nconc2 (slot
, Fcons (name
, Qnil
));
2010 /* Store ALIST in TBL for characters C..TO. */
2011 if (c
<= MAX_5_BYTE_CHAR
)
2012 char_table_set_range (tables
[k
], c
, to
, alist
);
2014 XCHAR_TABLE (tables
[k
])->defalt
= alist
;
2016 /* At last, change each elements to font names. */
2017 for (; CONSP (alist
); alist
= XCDR (alist
))
2020 XSETCAR (elt
, Ffont_xlfd_name (XCAR (elt
), Qnil
));
2025 if (EQ (fontset
, Vdefault_fontset
))
2033 DEFUN ("fontset-font", Ffontset_font
, Sfontset_font
, 2, 3, 0,
2034 doc
: /* Return a font name pattern for character CH in fontset NAME.
2035 If NAME is t, find a pattern in the default fontset.
2036 If NAME is nil, find a pattern in the fontset of the selected frame.
2038 The value has the form (FAMILY . REGISTRY), where FAMILY is a font
2039 family name and REGISTRY is a font registry name. This is actually
2040 the first font name pattern for CH in the fontset or in the default
2043 If the 2nd optional arg ALL is non-nil, return a list of all font name
2045 (Lisp_Object name
, Lisp_Object ch
, Lisp_Object all
)
2048 Lisp_Object fontset
, elt
, list
, repertory
, val
;
2053 fontset
= check_fontset_name (name
, &frame
);
2055 CHECK_CHARACTER (ch
);
2060 for (i
= 0, elt
= FONTSET_REF (fontset
, c
); i
< 2;
2061 i
++, elt
= FONTSET_FALLBACK (fontset
))
2063 for (j
= 0; j
< ASIZE (elt
); j
++)
2065 Lisp_Object family
, registry
;
2067 val
= AREF (elt
, j
);
2070 repertory
= AREF (val
, 1);
2071 if (INTEGERP (repertory
))
2073 struct charset
*charset
= CHARSET_FROM_ID (XINT (repertory
));
2075 if (! CHAR_CHARSET_P (c
, charset
))
2078 else if (CHAR_TABLE_P (repertory
))
2080 if (NILP (CHAR_TABLE_REF (repertory
, c
)))
2083 val
= AREF (val
, 0);
2084 /* VAL is a FONT-SPEC */
2085 family
= AREF (val
, FONT_FAMILY_INDEX
);
2086 if (! NILP (family
))
2087 family
= SYMBOL_NAME (family
);
2088 registry
= AREF (val
, FONT_REGISTRY_INDEX
);
2089 if (! NILP (registry
))
2090 registry
= SYMBOL_NAME (registry
);
2091 val
= Fcons (family
, registry
);
2094 list
= Fcons (val
, list
);
2096 if (EQ (fontset
, Vdefault_fontset
))
2098 fontset
= Vdefault_fontset
;
2100 return (Fnreverse (list
));
2103 DEFUN ("fontset-list", Ffontset_list
, Sfontset_list
, 0, 0, 0,
2104 doc
: /* Return a list of all defined fontset names. */)
2107 Lisp_Object fontset
, list
;
2111 for (i
= 0; i
< ASIZE (Vfontset_table
); i
++)
2113 fontset
= FONTSET_FROM_ID (i
);
2115 && BASE_FONTSET_P (fontset
))
2116 list
= Fcons (FONTSET_NAME (fontset
), list
);
2123 #ifdef FONTSET_DEBUG
2126 dump_fontset (Lisp_Object fontset
)
2130 vec
= Fmake_vector (make_number (3), Qnil
);
2131 ASET (vec
, 0, FONTSET_ID (fontset
));
2133 if (BASE_FONTSET_P (fontset
))
2135 ASET (vec
, 1, FONTSET_NAME (fontset
));
2141 frame
= FONTSET_FRAME (fontset
);
2144 FRAME_PTR f
= XFRAME (frame
);
2146 if (FRAME_LIVE_P (f
))
2148 Fcons (FONTSET_NAME (FONTSET_BASE (fontset
)), f
->name
));
2151 Fcons (FONTSET_NAME (FONTSET_BASE (fontset
)), Qnil
));
2153 if (!NILP (FONTSET_DEFAULT (fontset
)))
2154 ASET (vec
, 2, FONTSET_ID (FONTSET_DEFAULT (fontset
)));
2159 DEFUN ("fontset-list-all", Ffontset_list_all
, Sfontset_list_all
, 0, 0, 0,
2160 doc
: /* Return a brief summary of all fontsets for debug use. */)
2166 for (i
= 0, val
= Qnil
; i
< ASIZE (Vfontset_table
); i
++)
2167 if (! NILP (AREF (Vfontset_table
, i
)))
2168 val
= Fcons (dump_fontset (AREF (Vfontset_table
, i
)), val
);
2169 return (Fnreverse (val
));
2171 #endif /* FONTSET_DEBUG */
2174 syms_of_fontset (void)
2176 DEFSYM (Qfontset
, "fontset");
2177 Fput (Qfontset
, Qchar_table_extra_slots
, make_number (9));
2178 DEFSYM (Qfontset_info
, "fontset-info");
2179 Fput (Qfontset_info
, Qchar_table_extra_slots
, make_number (1));
2181 DEFSYM (Qprepend
, "prepend");
2182 DEFSYM (Qappend
, "append");
2183 DEFSYM (Qlatin
, "latin");
2185 Vcached_fontset_data
= Qnil
;
2186 staticpro (&Vcached_fontset_data
);
2188 Vfontset_table
= Fmake_vector (make_number (32), Qnil
);
2189 staticpro (&Vfontset_table
);
2191 Vdefault_fontset
= Fmake_char_table (Qfontset
, Qnil
);
2192 staticpro (&Vdefault_fontset
);
2193 FONTSET_ID (Vdefault_fontset
) = make_number (0);
2194 FONTSET_NAME (Vdefault_fontset
)
2195 = make_pure_c_string ("-*-*-*-*-*-*-*-*-*-*-*-*-fontset-default");
2196 ASET (Vfontset_table
, 0, Vdefault_fontset
);
2197 next_fontset_id
= 1;
2199 auto_fontset_alist
= Qnil
;
2200 staticpro (&auto_fontset_alist
);
2202 DEFVAR_LISP ("font-encoding-charset-alist", &Vfont_encoding_charset_alist
,
2204 Alist of charsets vs the charsets to determine the preferred font encoding.
2205 Each element looks like (CHARSET . ENCODING-CHARSET),
2206 where ENCODING-CHARSET is a charset registered in the variable
2207 `font-encoding-alist' as ENCODING.
2209 When a text has a property `charset' and the value is CHARSET, a font
2210 whose encoding corresponds to ENCODING-CHARSET is preferred. */);
2211 Vfont_encoding_charset_alist
= Qnil
;
2213 DEFVAR_LISP ("use-default-ascent", &Vuse_default_ascent
,
2215 Char table of characters whose ascent values should be ignored.
2216 If an entry for a character is non-nil, the ascent value of the glyph
2217 is assumed to be specified by _MULE_DEFAULT_ASCENT property of a font.
2219 This affects how a composite character which contains
2220 such a character is displayed on screen. */);
2221 Vuse_default_ascent
= Qnil
;
2223 DEFVAR_LISP ("ignore-relative-composition", &Vignore_relative_composition
,
2225 Char table of characters which are not composed relatively.
2226 If an entry for a character is non-nil, a composition sequence
2227 which contains that character is displayed so that
2228 the glyph of that character is put without considering
2229 an ascent and descent value of a previous character. */);
2230 Vignore_relative_composition
= Qnil
;
2232 DEFVAR_LISP ("alternate-fontname-alist", &Valternate_fontname_alist
,
2233 doc
: /* Alist of fontname vs list of the alternate fontnames.
2234 When a specified font name is not found, the corresponding
2235 alternate fontnames (if any) are tried instead. */);
2236 Valternate_fontname_alist
= Qnil
;
2238 DEFVAR_LISP ("fontset-alias-alist", &Vfontset_alias_alist
,
2239 doc
: /* Alist of fontset names vs the aliases. */);
2240 Vfontset_alias_alist
= Fcons (Fcons (FONTSET_NAME (Vdefault_fontset
),
2241 make_pure_c_string ("fontset-default")),
2244 DEFVAR_LISP ("vertical-centering-font-regexp",
2245 &Vvertical_centering_font_regexp
,
2246 doc
: /* *Regexp matching font names that require vertical centering on display.
2247 When a character is displayed with such fonts, the character is displayed
2248 at the vertical center of lines. */);
2249 Vvertical_centering_font_regexp
= Qnil
;
2251 DEFVAR_LISP ("otf-script-alist", &Votf_script_alist
,
2252 doc
: /* Alist of OpenType script tags vs the corresponding script names. */);
2253 Votf_script_alist
= Qnil
;
2255 defsubr (&Squery_fontset
);
2256 defsubr (&Snew_fontset
);
2257 defsubr (&Sset_fontset_font
);
2258 defsubr (&Sinternal_char_font
);
2259 defsubr (&Sfontset_info
);
2260 defsubr (&Sfontset_font
);
2261 defsubr (&Sfontset_list
);
2262 #ifdef FONTSET_DEBUG
2263 defsubr (&Sfontset_list_all
);
2267 /* arch-tag: ea861585-2f5f-4e5b-9849-d04a9c3a3537
2268 (do not change this comment) */