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60370d40 | 1 | ;;; fontset.el --- commands for handling fontset |
4ed46869 | 2 | |
fa526c4a RS |
3 | ;; Copyright (C) 1995, 1997 Electrotechnical Laboratory, JAPAN. |
4 | ;; Licensed to the Free Software Foundation. | |
4fbe2b13 | 5 | ;; Copyright (C) 2001 Free Software Foundation, Inc. |
4ed46869 KH |
6 | |
7 | ;; Keywords: mule, multilingual, fontset | |
8 | ||
9 | ;; This file is part of GNU Emacs. | |
10 | ||
11 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
12 | ;; it under the terms of the GNU General Public License as published by | |
13 | ;; the Free Software Foundation; either version 2, or (at your option) | |
14 | ;; any later version. | |
15 | ||
16 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
17 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | ;; GNU General Public License for more details. | |
20 | ||
21 | ;; You should have received a copy of the GNU General Public License | |
369314dc KH |
22 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
23 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
24 | ;; Boston, MA 02111-1307, USA. | |
4ed46869 | 25 | |
60370d40 PJ |
26 | ;;; Commentary: |
27 | ||
4ed46869 KH |
28 | ;;; Code: |
29 | ||
2ad00186 KH |
30 | ;; Set standard fontname specification of characters in the default |
31 | ;; fontset to find an appropriate font for each charset. This is used | |
32 | ;; to generate a font name for a fontset if the fontset doesn't | |
33 | ;; specify a font name for a specific character. The specification | |
34 | ;; has the form (FAMILY . REGISTRY). FAMILY may be nil, in which | |
35 | ;; case, the family name of default face is used. If REGISTRY | |
36 | ;; contains a character `-', the string before that is embedded in | |
37 | ;; `CHARSET_REGISTRY' field, and the string after that is embedded in | |
38 | ;; `CHARSET_ENCODING' field. If it does not contain `-', the whole | |
39 | ;; string is embedded in `CHARSET_REGISTRY' field, and a wild card | |
40 | ;; character `*' is embedded in `CHARSET_ENCODING' field. The | |
41 | ;; REGISTRY for ASCII characters are predefined as "ISO8859-1". | |
42 | ||
c963bbc2 KH |
43 | (defun setup-default-fontset () |
44 | "Setup the default fontset." | |
45 | (dolist | |
46 | (elt | |
d3980715 SM |
47 | ;; Eval this at compile-time, since fontset.el is always loaded |
48 | ;; when run under X and this would always load ind-util.el as well. | |
49 | (eval-when-compile | |
50 | `((latin-iso8859-1 . (nil . "ISO8859-1")) | |
2ad00186 KH |
51 | (latin-iso8859-2 . (nil . "ISO8859-2")) |
52 | (latin-iso8859-3 . (nil . "ISO8859-3")) | |
53 | (latin-iso8859-4 . (nil . "ISO8859-4")) | |
54 | (thai-tis620 . ("*" . "TIS620")) | |
55 | (greek-iso8859-7 . ("*" . "ISO8859-7")) | |
56 | (arabic-iso8859-6 . ("*" . "ISO8859-6")) | |
57 | (hebrew-iso8859-8 . ("*" . "ISO8859-8")) | |
58 | (katakana-jisx0201 . ("*" . "JISX0201")) | |
59 | (latin-jisx0201 . (nil . "JISX0201")) | |
60 | (cyrillic-iso8859-5 . ("*" . "ISO8859-5")) | |
61 | (latin-iso8859-9 . (nil . "ISO8859-9")) | |
62 | (japanese-jisx0208-1978 . ("*" . "JISX0208.1978")) | |
9fff53a3 KH |
63 | (chinese-gb2312 . ("*" . "GB2312.1980")) |
64 | (japanese-jisx0208 . ("*" . "JISX0208.1990")) | |
65 | (korean-ksc5601 . ("*" . "KSC5601.1989")) | |
2ad00186 KH |
66 | (japanese-jisx0212 . ("*" . "JISX0212")) |
67 | (chinese-cns11643-1 . ("*" . "CNS11643.1992-1")) | |
68 | (chinese-cns11643-2 . ("*" . "CNS11643.1992-2")) | |
69 | (chinese-cns11643-3 . ("*" . "CNS11643.1992-3")) | |
70 | (chinese-cns11643-4 . ("*" . "CNS11643.1992-4")) | |
71 | (chinese-cns11643-5 . ("*" . "CNS11643.1992-5")) | |
72 | (chinese-cns11643-6 . ("*" . "CNS11643.1992-6")) | |
73 | (chinese-cns11643-7 . ("*" . "CNS11643.1992-7")) | |
74 | (chinese-big5-1 . ("*" . "Big5")) | |
75 | (chinese-big5-2 . ("*" . "Big5")) | |
76 | (chinese-sisheng . (nil . "sisheng_cwnn")) | |
77 | (vietnamese-viscii-lower . (nil . "VISCII1.1")) | |
78 | (vietnamese-viscii-upper . (nil . "VISCII1.1")) | |
79 | (arabic-digit . ("*" . "MuleArabic-0")) | |
80 | (arabic-1-column . ("*" . "MuleArabic-1")) | |
81 | (arabic-2-column . ("*" . "MuleArabic-2")) | |
82 | (ipa . (nil . "MuleIPA")) | |
83 | (ethiopic . ("*" . "Ethiopic-Unicode")) | |
84 | (ascii-right-to-left . (nil . "ISO8859-1")) | |
85 | (indian-is13194 . ("*" . "IS13194-Devanagari")) | |
86 | (indian-2-column . ("*" . "MuleIndian-2")) | |
2ad00186 | 87 | (lao . ("*" . "MuleLao-1")) |
12385722 | 88 | (tibetan . ("proportional" . "MuleTibetan-2")) |
2ad00186 KH |
89 | (tibetan-1-column . ("*" . "MuleTibetan-1")) |
90 | (latin-iso8859-14 . (nil . "ISO8859-14")) | |
91 | (latin-iso8859-15 . (nil . "ISO8859-15")) | |
92 | (mule-unicode-0100-24ff . (nil . "ISO10646-1")) | |
adbff2a7 KH |
93 | (mule-unicode-2500-33ff . (nil . "ISO10646-1")) |
94 | (mule-unicode-e000-ffff . (nil . "ISO10646-1")) | |
dd7e81b4 KH |
95 | (japanese-jisx0213-1 . ("*" . "JISX0213.2000-1")) |
96 | (japanese-jisx0213-2 . ("*" . "JISX0213.2000-2")) | |
6fc74bf2 RS |
97 | ;; unicode |
98 | ((,(decode-char 'ucs #x0900) | |
99 | . ,(decode-char 'ucs #x097F)) . ("*" . "ISO10646.indian-1")) | |
100 | ;; indian | |
101 | (indian-glyph . ("*" . "Devanagari-CDAC")) | |
102 | ((,(indian-glyph-char 0 'devanagari) | |
103 | . ,(indian-glyph-char 255 'devanagari)) . ("*" . "Devanagari-CDAC")) | |
104 | ((,(indian-glyph-char 0 'sanskrit) | |
105 | . ,(indian-glyph-char 255 'sanskrit)) . ("*" . "Sanskrit-CDAC")) | |
106 | ((,(indian-glyph-char 0 'bengali) | |
107 | . ,(indian-glyph-char 255 'bengali)) . ("*" . "Bengali-CDAC")) | |
108 | ((,(indian-glyph-char 0 'assamese) | |
109 | . ,(indian-glyph-char 255 'assamese)) . ("*" . "Assamese-CDAC")) | |
110 | ((,(indian-glyph-char 0 'punjabi) | |
111 | . ,(indian-glyph-char 255 'punjabi)) . ("*" . "Punjabi-CDAC")) | |
112 | ((,(indian-glyph-char 0 'gujarati) | |
113 | . ,(indian-glyph-char 255 'gujarati)) . ("*" . "Gujarati-CDAC")) | |
114 | ((,(indian-glyph-char 0 'oriya) | |
115 | . ,(indian-glyph-char 255 'oriya)) . ("*" . "Oriya-CDAC")) | |
116 | ((,(indian-glyph-char 0 'tamil) | |
117 | . ,(indian-glyph-char 255 'tamil)) . ("*" . "Tamil-CDAC")) | |
118 | ((,(indian-glyph-char 0 'telugu) | |
119 | . ,(indian-glyph-char 255 'telugu)) . ("*" . "Telugu-CDAC")) | |
120 | ((,(indian-glyph-char 0 'kannada) | |
121 | . ,(indian-glyph-char 255 'kannada)) . ("*" . "Kannada-CDAC")) | |
122 | ((,(indian-glyph-char 0 'malayalam) | |
123 | . ,(indian-glyph-char 255 'malayalam)) . ("*" . "Malayalam-CDAC")) | |
d3980715 | 124 | ))) |
c963bbc2 | 125 | (set-fontset-font "fontset-default" (car elt) (cdr elt)))) |
4ed46869 KH |
126 | |
127 | ;; Set arguments in `font-encoding-alist' (which see). | |
128 | (defun set-font-encoding (pattern charset encoding) | |
129 | (let ((slot (assoc pattern font-encoding-alist))) | |
130 | (if slot | |
131 | (let ((place (assq charset (cdr slot)))) | |
132 | (if place | |
133 | (setcdr place encoding) | |
134 | (setcdr slot (cons (cons charset encoding) (cdr slot))))) | |
135 | (setq font-encoding-alist | |
136 | (cons (list pattern (cons charset encoding)) font-encoding-alist))) | |
137 | )) | |
138 | ||
84fa2951 KH |
139 | ;; Allow display of arbitrary characters with an iso-10646-encoded |
140 | ;; (`Unicode') font. | |
141 | (define-translation-table 'ucs-mule-to-mule-unicode | |
142 | ucs-mule-to-mule-unicode) | |
143 | (define-translation-hash-table 'ucs-mule-cjk-to-unicode | |
144 | ucs-mule-cjk-to-unicode) | |
145 | ||
adbff2a7 | 146 | (define-ccl-program ccl-encode-unicode-font |
12385722 | 147 | `(0 |
84fa2951 KH |
148 | ;; r0: charset-id |
149 | ;; r1: 1st position code | |
150 | ;; r2: 2nd position code (if r0 is 2D charset) | |
151 | ((if (r0 == ,(charset-id 'ascii)) | |
152 | ((r2 = r1) | |
153 | (r1 = 0)) | |
154 | ;; At first, try to get a Unicode code point directly. | |
155 | ((if (r2 >= 0) | |
156 | ;; This is a 2D charset. | |
157 | (r1 = ((r1 << 7) | r2))) | |
158 | (lookup-character ucs-mule-cjk-to-unicode r0 r1) | |
159 | (if r7 | |
160 | ;; We got it! | |
161 | ((r1 = (r0 >> 8)) | |
162 | (r2 = (r0 & #xFF))) | |
163 | ;; Look for a translation for non-ASCII chars. | |
164 | ((translate-character ucs-mule-to-mule-unicode r0 r1) | |
165 | (if (r0 == ,(charset-id 'latin-iso8859-1)) | |
166 | ((r2 = (r1 + 128)) | |
167 | (r1 = 0)) | |
168 | ((r2 = (r1 & #x7F)) | |
169 | (r1 >>= 7) | |
170 | (if (r0 == ,(charset-id 'mule-unicode-0100-24ff)) | |
171 | ((r1 *= 96) | |
172 | (r1 += r2) | |
173 | (r1 += ,(- #x100 (* 32 96) 32)) | |
174 | (r1 >8= 0) | |
175 | (r2 = r7)) | |
176 | (if (r0 == ,(charset-id 'mule-unicode-2500-33ff)) | |
177 | ((r1 *= 96) | |
178 | (r1 += r2) | |
179 | (r1 += ,(- #x2500 (* 32 96) 32)) | |
180 | (r1 >8= 0) | |
181 | (r2 = r7)) | |
182 | (if (r0 == ,(charset-id 'mule-unicode-e000-ffff)) | |
183 | ((r1 *= 96) | |
184 | (r1 += r2) | |
185 | (r1 += ,(- #xe000 (* 32 96) 32)) | |
186 | (r1 >8= 0) | |
187 | (r2 = r7)) | |
188 | ;; No way, use the glyph for U+FFFD. | |
189 | ((r1 = #xFF) | |
190 | (r2 = #xFD))))))))))))) | |
191 | "Encode characters for display with iso10646 font. | |
192 | Translate through the translation-hash-table named | |
193 | `ucs-mule-cjk-to-unicode' and the translation-table named | |
194 | `ucs-mule-to-mule-unicode' initially.") | |
12385722 | 195 | |
84fa2951 KH |
196 | ;; Use the above CCL encoder for Unicode fonts. Please note that the |
197 | ;; regexp is not simply "ISO10646-1" because there exists, for | |
198 | ;; instance, the following Devanagari Unicode fonts: | |
199 | ;; -misc-fixed-medium-r-normal--24-240-72-72-c-120-iso10646.indian-1 | |
200 | ;; -sibal-devanagari-medium-r-normal--24-240-75-75-P--iso10646-dev | |
12385722 | 201 | (setq font-ccl-encoder-alist |
84fa2951 | 202 | (cons '("ISO10646.*-*" . ccl-encode-unicode-font) |
12385722 KH |
203 | font-ccl-encoder-alist)) |
204 | ||
4ed46869 KH |
205 | ;; Setting for suppressing XLoadQueryFont on big fonts. |
206 | (setq x-pixel-size-width-font-regexp | |
207 | "gb2312\\|jisx0208\\|ksc5601\\|cns11643\\|big5") | |
208 | ||
6eca8d93 | 209 | ;; These fonts require vertical centering. |
0c4f97d0 | 210 | (setq vertical-centering-font-regexp |
6eca8d93 | 211 | "gb2312\\|jisx0208\\|jisx0212\\|ksc5601\\|cns11643\\|big5") |
0c4f97d0 | 212 | |
6fb8f8bd KH |
213 | (defvar x-font-name-charset-alist |
214 | '(("iso8859-1" ascii latin-iso8859-1) | |
215 | ("iso8859-2" ascii latin-iso8859-2) | |
216 | ("iso8859-3" ascii latin-iso8859-3) | |
217 | ("iso8859-4" ascii latin-iso8859-4) | |
218 | ("iso8859-5" ascii cyrillic-iso8859-5) | |
219 | ("iso8859-6" ascii arabic-iso8859-6) | |
220 | ("iso8859-7" ascii greek-iso8859-7) | |
221 | ("iso8859-8" ascii hebrew-iso8859-8) | |
7a860cf2 DL |
222 | ("iso8859-14" ascii latin-iso8859-14) |
223 | ("iso8859-15" ascii latin-iso8859-15) | |
6fb8f8bd KH |
224 | ("tis620" ascii thai-tis620) |
225 | ("koi8" ascii cyrillic-iso8859-5) | |
226 | ("viscii" ascii vietnamese-viscii-upper vietnamese-viscii-lower) | |
227 | ("vscii" ascii vietnamese-viscii-upper vietnamese-viscii-lower) | |
12385722 | 228 | ("mulelao-1" ascii lao) |
adbff2a7 KH |
229 | ("iso10646-1" ascii latin-iso8859-1 mule-unicode-0100-24ff |
230 | mule-unicode-2500-33ff mule-unicode-e000-ffff)) | |
6fb8f8bd KH |
231 | "Alist of font names vs list of charsets the font can display. |
232 | ||
233 | When a font name which matches some element of this alist is given as | |
234 | `-fn' command line argument or is specified by X resource, a fontset | |
235 | which uses the specified font for the corresponding charsets are | |
236 | created and used for the initial frame.") | |
237 | ||
4ed46869 KH |
238 | ;;; XLFD (X Logical Font Description) format handler. |
239 | ||
240 | ;; Define XLFD's field index numbers. ; field name | |
241 | (defconst xlfd-regexp-foundry-subnum 0) ; FOUNDRY | |
242 | (defconst xlfd-regexp-family-subnum 1) ; FAMILY_NAME | |
243 | (defconst xlfd-regexp-weight-subnum 2) ; WEIGHT_NAME | |
244 | (defconst xlfd-regexp-slant-subnum 3) ; SLANT | |
245 | (defconst xlfd-regexp-swidth-subnum 4) ; SETWIDTH_NAME | |
246 | (defconst xlfd-regexp-adstyle-subnum 5) ; ADD_STYLE_NAME | |
247 | (defconst xlfd-regexp-pixelsize-subnum 6) ; PIXEL_SIZE | |
248 | (defconst xlfd-regexp-pointsize-subnum 7) ; POINT_SIZE | |
249 | (defconst xlfd-regexp-resx-subnum 8) ; RESOLUTION_X | |
250 | (defconst xlfd-regexp-resy-subnum 9) ; RESOLUTION_Y | |
251 | (defconst xlfd-regexp-spacing-subnum 10) ; SPACING | |
252 | (defconst xlfd-regexp-avgwidth-subnum 11) ; AVERAGE_WIDTH | |
253 | (defconst xlfd-regexp-registry-subnum 12) ; CHARSET_REGISTRY | |
254 | (defconst xlfd-regexp-encoding-subnum 13) ; CHARSET_ENCODING | |
255 | ||
256 | ;; Regular expression matching against a fontname which conforms to | |
257 | ;; XLFD (X Logical Font Description). All fields in XLFD should be | |
258 | ;; not be omitted (but can be a wild card) to be matched. | |
259 | (defconst xlfd-tight-regexp | |
260 | "^\ | |
261 | -\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)\ | |
262 | -\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)\ | |
263 | -\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)$") | |
264 | ||
265 | ;; List of field numbers of XLFD whose values are numeric. | |
266 | (defconst xlfd-regexp-numeric-subnums | |
267 | (list xlfd-regexp-pixelsize-subnum ;6 | |
268 | xlfd-regexp-pointsize-subnum ;7 | |
269 | xlfd-regexp-resx-subnum ;8 | |
270 | xlfd-regexp-resy-subnum ;9 | |
271 | xlfd-regexp-avgwidth-subnum ;11 | |
272 | )) | |
273 | ||
274 | (defun x-decompose-font-name (pattern) | |
275 | "Decompose PATTERN into XLFD's fields and return vector of the fields. | |
276 | The length of the vector is 14. | |
277 | ||
278 | If PATTERN doesn't conform to XLFD, try to get a full XLFD name from | |
279 | X server and use the information of the full name to decompose | |
280 | PATTERN. If no full XLFD name is gotten, return nil." | |
281 | (let (xlfd-fields fontname) | |
282 | (if (string-match xlfd-tight-regexp pattern) | |
283 | (let ((i 0)) | |
284 | (setq xlfd-fields (make-vector 14 nil)) | |
285 | (while (< i 14) | |
286 | (aset xlfd-fields i (match-string (1+ i) pattern)) | |
287 | (setq i (1+ i))) | |
288 | xlfd-fields) | |
289 | (setq fontname (condition-case nil | |
290 | (x-resolve-font-name pattern) | |
291 | (error))) | |
292 | (if (and fontname | |
293 | (string-match xlfd-tight-regexp fontname)) | |
190ce634 | 294 | ;; We get a full XLFD name. |
4ed46869 KH |
295 | (let ((len (length pattern)) |
296 | (i 0) | |
297 | l) | |
190ce634 KH |
298 | ;; Setup xlfd-fields by the full XLFD name. Each element |
299 | ;; should be a cons of matched index and matched string. | |
4ed46869 KH |
300 | (setq xlfd-fields (make-vector 14 nil)) |
301 | (while (< i 14) | |
302 | (aset xlfd-fields i | |
303 | (cons (match-beginning (1+ i)) | |
304 | (match-string (1+ i) fontname))) | |
305 | (setq i (1+ i))) | |
190ce634 KH |
306 | |
307 | ;; Replace wild cards in PATTERN by regexp codes. | |
4ed46869 KH |
308 | (setq i 0) |
309 | (while (< i len) | |
310 | (let ((ch (aref pattern i))) | |
311 | (if (= ch ??) | |
312 | (setq pattern (concat (substring pattern 0 i) | |
313 | "\\(.\\)" | |
314 | (substring pattern (1+ i))) | |
315 | len (+ len 4) | |
316 | i (+ i 4)) | |
317 | (if (= ch ?*) | |
318 | (setq pattern (concat (substring pattern 0 i) | |
319 | "\\(.*\\)" | |
320 | (substring pattern (1+ i))) | |
321 | len (+ len 5) | |
322 | i (+ i 5)) | |
323 | (setq i (1+ i)))))) | |
190ce634 KH |
324 | |
325 | ;; Set each element of xlfd-fields to proper strings. | |
326 | (if (string-match pattern fontname) | |
327 | ;; The regular expression PATTERN matchs the full XLFD | |
328 | ;; name. Set elements that correspond to a wild card | |
329 | ;; in PATTERN to "*", set the other elements to the | |
330 | ;; exact strings in PATTERN. | |
331 | (let ((l (cdr (cdr (match-data))))) | |
332 | (setq i 0) | |
333 | (while (< i 14) | |
334 | (if (or (null l) (< (car (aref xlfd-fields i)) (car l))) | |
335 | (progn | |
336 | (aset xlfd-fields i (cdr (aref xlfd-fields i))) | |
337 | (setq i (1+ i))) | |
338 | (if (< (car (aref xlfd-fields i)) (car (cdr l))) | |
339 | (progn | |
340 | (aset xlfd-fields i "*") | |
341 | (setq i (1+ i))) | |
342 | (setq l (cdr (cdr l))))))) | |
343 | ;; Set each element of xlfd-fields to the exact string | |
344 | ;; in the corresonding fields in full XLFD name. | |
345 | (setq i 0) | |
346 | (while (< i 14) | |
347 | (aset xlfd-fields i (cdr (aref xlfd-fields i))) | |
348 | (setq i (1+ i)))) | |
4ed46869 KH |
349 | xlfd-fields))))) |
350 | ||
441038a6 KH |
351 | ;; Replace consecutive wild-cards (`*') in NAME to one. |
352 | ;; Ex. (x-reduce-font-name "-*-*-*-iso8859-1") => "-*-iso8859-1" | |
353 | (defsubst x-reduce-font-name (name) | |
354 | (while (string-match "-\\*-\\(\\*-\\)+" name) | |
355 | (setq name (replace-match "-*-" t t name))) | |
356 | name) | |
357 | ||
bb98ead9 | 358 | (defun x-compose-font-name (fields &optional reduce) |
4ed46869 | 359 | "Compose X's fontname from FIELDS. |
bb98ead9 | 360 | FIELDS is a vector of XLFD fields, the length 14. |
441038a6 | 361 | If a field is nil, wild-card letter `*' is embedded. |
6eca8d93 KH |
362 | Optional argument REDUCE is always ignored. It exists just for |
363 | backward compatibility." | |
364 | (concat "-" (mapconcat (lambda (x) (or x "*")) fields "-"))) | |
bcb68cff | 365 | |
4fbe2b13 GM |
366 | |
367 | (defun x-must-resolve-font-name (xlfd-fields) | |
368 | "Like `x-resolve-font-name', but always return a font name. | |
369 | XLFD-FIELDS is a vector of XLFD (X Logical Font Description) fields. | |
370 | If no font matching XLFD-FIELDS is available, successively replace | |
371 | parts of the font name pattern with \"*\" until some font is found. | |
372 | Value is name of that font." | |
373 | (let ((ascii-font nil) (index 0)) | |
374 | (while (and (null ascii-font) (<= index xlfd-regexp-encoding-subnum)) | |
375 | (let ((pattern (x-compose-font-name xlfd-fields))) | |
376 | (condition-case nil | |
377 | (setq ascii-font (x-resolve-font-name pattern)) | |
378 | (error | |
379 | (message "Warning: no fonts matching `%s' available" pattern) | |
380 | (aset xlfd-fields index "*") | |
381 | (setq index (1+ index)))))) | |
382 | (unless ascii-font | |
383 | (error "No fonts founds")) | |
384 | ascii-font)) | |
385 | ||
386 | ||
4ed46869 | 387 | (defun x-complement-fontset-spec (xlfd-fields fontlist) |
6eca8d93 | 388 | "Complement FONTLIST for charsets based on XLFD-FIELDS and return it. |
4ed46869 | 389 | XLFD-FIELDS is a vector of XLFD (X Logical Font Description) fields. |
6fb8f8bd | 390 | FONTLIST is an alist of charsets vs the corresponding font names. |
4ed46869 | 391 | |
6eca8d93 KH |
392 | The fonts are complemented as below. |
393 | ||
394 | If FONTLIST doesn't specify a font for ASCII charset, generate a font | |
395 | name for the charset from XLFD-FIELDS, and add that information to | |
396 | FONTLIST. | |
397 | ||
398 | If a font specifid for ASCII supports the other charsets (see the | |
399 | variable `x-font-name-charset-alist'), add that information to FONTLIST." | |
f6cab6c8 | 400 | (let* ((slot (assq 'ascii fontlist)) |
6bf84cde KH |
401 | (ascii-font (cdr slot)) |
402 | ascii-font-spec) | |
f6cab6c8 KH |
403 | (if ascii-font |
404 | (setcdr slot (setq ascii-font (x-resolve-font-name ascii-font))) | |
405 | ;; If font for ASCII is not specified, add it. | |
2ad00186 KH |
406 | (aset xlfd-fields xlfd-regexp-registry-subnum "iso8859") |
407 | (aset xlfd-fields xlfd-regexp-encoding-subnum "1") | |
4fbe2b13 | 408 | (setq ascii-font (x-must-resolve-font-name xlfd-fields)) |
2ad00186 | 409 | (setq fontlist (cons (cons 'ascii ascii-font) fontlist))) |
6eca8d93 KH |
410 | |
411 | ;; If the font for ASCII also supports the other charsets, and | |
412 | ;; they are not specified in FONTLIST, add them. | |
6bf84cde KH |
413 | (setq xlfd-fields (x-decompose-font-name ascii-font)) |
414 | (if (not xlfd-fields) | |
415 | (setq ascii-font-spec ascii-font) | |
416 | (setq ascii-font-spec | |
417 | (cons (format "%s-%s" | |
418 | (aref xlfd-fields xlfd-regexp-foundry-subnum) | |
419 | (aref xlfd-fields xlfd-regexp-family-subnum)) | |
420 | (format "%s-%s" | |
421 | (aref xlfd-fields xlfd-regexp-registry-subnum) | |
422 | (aref xlfd-fields xlfd-regexp-encoding-subnum))))) | |
6eca8d93 KH |
423 | (let ((tail x-font-name-charset-alist) |
424 | elt) | |
425 | (while tail | |
426 | (setq elt (car tail) tail (cdr tail)) | |
427 | (if (string-match (car elt) ascii-font) | |
428 | (let ((charsets (cdr elt)) | |
429 | charset) | |
430 | (while charsets | |
431 | (setq charset (car charsets) charsets (cdr charsets)) | |
432 | (or (assq charset fontlist) | |
433 | (setq fontlist | |
6bf84cde | 434 | (cons (cons charset ascii-font-spec) fontlist)))))))) |
a1506d29 | 435 | |
6eca8d93 | 436 | fontlist)) |
4ed46869 | 437 | |
35d4066a KH |
438 | (defun fontset-name-p (fontset) |
439 | "Return non-nil if FONTSET is valid as fontset name. | |
440 | A valid fontset name should conform to XLFD (X Logical Font Description) | |
441 | with \"fontset\" in `<CHARSET_REGISTRY> field." | |
442 | (and (string-match xlfd-tight-regexp fontset) | |
443 | (string= (match-string (1+ xlfd-regexp-registry-subnum) fontset) | |
444 | "fontset"))) | |
445 | ||
4ed46869 KH |
446 | ;; Return a list to be appended to `x-fixed-font-alist' when |
447 | ;; `mouse-set-font' is called. | |
448 | (defun generate-fontset-menu () | |
6eca8d93 | 449 | (let ((fontsets (fontset-list)) |
4ed46869 KH |
450 | fontset-name |
451 | l) | |
452 | (while fontsets | |
6eca8d93 | 453 | (setq fontset-name (car fontsets) fontsets (cdr fontsets)) |
494ec9bc | 454 | (setq l (cons (list (fontset-plain-name fontset-name) fontset-name) l))) |
80ae5f3a KH |
455 | (cons "Fontset" |
456 | (sort l (function (lambda (x y) (string< (car x) (car y)))))))) | |
4ed46869 KH |
457 | |
458 | (defun fontset-plain-name (fontset) | |
459 | "Return a plain and descriptive name of FONTSET." | |
494ec9bc KH |
460 | (if (not (setq fontset (query-fontset fontset))) |
461 | (error "Invalid fontset: %s" fontset)) | |
4ed46869 KH |
462 | (let ((xlfd-fields (x-decompose-font-name fontset))) |
463 | (if xlfd-fields | |
464 | (let ((weight (aref xlfd-fields xlfd-regexp-weight-subnum)) | |
465 | (slant (aref xlfd-fields xlfd-regexp-slant-subnum)) | |
466 | (swidth (aref xlfd-fields xlfd-regexp-swidth-subnum)) | |
467 | (size (aref xlfd-fields xlfd-regexp-pixelsize-subnum)) | |
494ec9bc KH |
468 | (charset (aref xlfd-fields xlfd-regexp-registry-subnum)) |
469 | (nickname (aref xlfd-fields xlfd-regexp-encoding-subnum)) | |
4ed46869 | 470 | name) |
494ec9bc | 471 | (if (not (string= "fontset" charset)) |
4ed46869 | 472 | fontset |
494ec9bc KH |
473 | (if (> (string-to-int size) 0) |
474 | (setq name (format "%s: %s-dot" nickname size)) | |
475 | (setq name nickname)) | |
476 | (cond ((string-match "^medium$" weight) | |
477 | (setq name (concat name " " "medium"))) | |
478 | ((string-match "^bold$\\|^demibold$" weight) | |
479 | (setq name (concat name " " weight)))) | |
480 | (cond ((string-match "^i$" slant) | |
481 | (setq name (concat name " " "italic"))) | |
482 | ((string-match "^o$" slant) | |
483 | (setq name (concat name " " "slant"))) | |
484 | ((string-match "^ri$" slant) | |
485 | (setq name (concat name " " "reverse italic"))) | |
486 | ((string-match "^ro$" slant) | |
487 | (setq name (concat name " " "reverse slant")))) | |
4ed46869 KH |
488 | name)) |
489 | fontset))) | |
490 | ||
c963bbc2 | 491 | |
6fb8f8bd | 492 | (defun create-fontset-from-fontset-spec (fontset-spec |
bb98ead9 | 493 | &optional style-variant noerror) |
4ed46869 KH |
494 | "Create a fontset from fontset specification string FONTSET-SPEC. |
495 | FONTSET-SPEC is a string of the format: | |
496 | FONTSET-NAME,CHARSET-NAME0:FONT-NAME0,CHARSET-NAME1:FONT-NAME1, ... | |
494ec9bc | 497 | Any number of SPACE, TAB, and NEWLINE can be put before and after commas. |
bb98ead9 | 498 | |
6eca8d93 KH |
499 | Optional 2nd argument is ignored. It exists just for backward |
500 | compatibility. | |
bb98ead9 | 501 | |
883e21bd | 502 | If this function attempts to create already existing fontset, error is |
1f50fef9 KH |
503 | signaled unless the optional 3rd argument NOERROR is non-nil. |
504 | ||
505 | It returns a name of the created fontset." | |
494ec9bc KH |
506 | (if (not (string-match "^[^,]+" fontset-spec)) |
507 | (error "Invalid fontset spec: %s" fontset-spec)) | |
6eca8d93 | 508 | (setq fontset-spec (downcase fontset-spec)) |
494ec9bc KH |
509 | (let ((idx (match-end 0)) |
510 | (name (match-string 0 fontset-spec)) | |
6eca8d93 | 511 | xlfd-fields charset fontlist ascii-font) |
6fb8f8bd | 512 | (if (query-fontset name) |
a1506d29 | 513 | (or noerror |
86e411c9 | 514 | (error "Fontset \"%s\" already exists" name)) |
6eca8d93 KH |
515 | (setq xlfd-fields (x-decompose-font-name name)) |
516 | (or xlfd-fields | |
517 | (error "Fontset \"%s\" not conforming to XLFD" name)) | |
518 | ||
6fb8f8bd KH |
519 | ;; At first, extract pairs of charset and fontname from FONTSET-SPEC. |
520 | (while (string-match "[, \t\n]*\\([^:]+\\):\\([^,]+\\)" fontset-spec idx) | |
521 | (setq idx (match-end 0)) | |
522 | (setq charset (intern (match-string 1 fontset-spec))) | |
523 | (if (charsetp charset) | |
524 | (setq fontlist (cons (cons charset (match-string 2 fontset-spec)) | |
525 | fontlist)))) | |
f6cab6c8 | 526 | (setq ascii-font (cdr (assq 'ascii fontlist))) |
6eca8d93 KH |
527 | |
528 | ;; Complement FONTLIST. | |
529 | (setq fontlist (x-complement-fontset-spec xlfd-fields fontlist)) | |
530 | ||
531 | (new-fontset name fontlist) | |
532 | ||
533 | ;; Define the short name alias. | |
534 | (if (and (string-match "fontset-.*$" name) | |
535 | (not (assoc name fontset-alias-alist))) | |
536 | (let ((alias (match-string 0 name))) | |
537 | (or (rassoc alias fontset-alias-alist) | |
538 | (setq fontset-alias-alist | |
539 | (cons (cons name alias) fontset-alias-alist))))) | |
540 | ||
541 | ;; Define the ASCII font name alias. | |
f6cab6c8 KH |
542 | (or ascii-font |
543 | (setq ascii-font (cdr (assq 'ascii fontlist)))) | |
6eca8d93 KH |
544 | (or (rassoc ascii-font fontset-alias-alist) |
545 | (setq fontset-alias-alist | |
546 | (cons (cons name ascii-font) | |
547 | fontset-alias-alist)))) | |
6fb8f8bd | 548 | |
1f50fef9 KH |
549 | name)) |
550 | ||
551 | (defun create-fontset-from-ascii-font (font &optional resolved-font | |
552 | fontset-name) | |
553 | "Create a fontset from an ASCII font FONT. | |
554 | ||
555 | Optional 1st arg RESOLVED-FONT is a resolved name of FONT. If | |
556 | omitted, x-resolve-font-name is called to get the resolved name. At | |
56d25ff5 | 557 | this time, if FONT is not available, error is signaled. |
1f50fef9 KH |
558 | |
559 | Optional 2nd arg FONTSET-NAME is a string to be used in | |
560 | `<CHARSET_ENCODING>' fields of a new fontset name. If it is omitted, | |
561 | an appropriate name is generated automatically. | |
562 | ||
1f50fef9 | 563 | It returns a name of the created fontset." |
6eca8d93 KH |
564 | (setq font (downcase font)) |
565 | (if resolved-font | |
566 | (setq resolved-font (downcase resolved-font)) | |
567 | (setq resolved-font (downcase (x-resolve-font-name font)))) | |
568 | (let ((xlfd (x-decompose-font-name font)) | |
569 | (resolved-xlfd (x-decompose-font-name resolved-font)) | |
570 | fontset fontset-spec) | |
1f50fef9 KH |
571 | (aset xlfd xlfd-regexp-foundry-subnum nil) |
572 | (aset xlfd xlfd-regexp-family-subnum nil) | |
573 | (aset xlfd xlfd-regexp-registry-subnum "fontset") | |
6eca8d93 KH |
574 | (if fontset-name |
575 | (setq fontset-name (downcase fontset-name)) | |
576 | (setq fontset-name | |
577 | (format "%s_%s_%s" | |
578 | (aref resolved-xlfd xlfd-regexp-registry-subnum) | |
579 | (aref resolved-xlfd xlfd-regexp-encoding-subnum) | |
580 | (aref resolved-xlfd xlfd-regexp-pixelsize-subnum)))) | |
1f50fef9 | 581 | (aset xlfd xlfd-regexp-encoding-subnum fontset-name) |
1f50fef9 KH |
582 | (setq fontset (x-compose-font-name xlfd)) |
583 | (or (query-fontset fontset) | |
6eca8d93 KH |
584 | (create-fontset-from-fontset-spec (concat fontset ", ascii:" font))))) |
585 | ||
4ed46869 | 586 | \f |
acfb10b8 | 587 | ;; Create standard fontset from 16 dots fonts which are the most widely |
80d4ea92 KH |
588 | ;; installed fonts. Fonts for Chinese-GB, Korean, and Chinese-CNS are |
589 | ;; specified here because FAMILY of those fonts are not "fixed" in | |
590 | ;; many cases. | |
acfb10b8 | 591 | (defvar standard-fontset-spec |
cdd675ad | 592 | (purecopy "-*-fixed-medium-r-normal-*-16-*-*-*-*-*-fontset-standard, |
4ed46869 KH |
593 | chinese-gb2312:-*-medium-r-normal-*-16-*-gb2312*-*, |
594 | korean-ksc5601:-*-medium-r-normal-*-16-*-ksc5601*-*, | |
595 | chinese-cns11643-1:-*-medium-r-normal-*-16-*-cns11643*-1, | |
596 | chinese-cns11643-2:-*-medium-r-normal-*-16-*-cns11643*-2, | |
597 | chinese-cns11643-3:-*-medium-r-normal-*-16-*-cns11643*-3, | |
598 | chinese-cns11643-4:-*-medium-r-normal-*-16-*-cns11643*-4, | |
599 | chinese-cns11643-5:-*-medium-r-normal-*-16-*-cns11643*-5, | |
600 | chinese-cns11643-6:-*-medium-r-normal-*-16-*-cns11643*-6, | |
cdd675ad | 601 | chinese-cns11643-7:-*-medium-r-normal-*-16-*-cns11643*-7") |
acfb10b8 KH |
602 | "String of fontset spec of the standard fontset. |
603 | You have the biggest chance to display international characters | |
604 | with correct glyphs by using the standard fontset. | |
4ed46869 KH |
605 | See the documentation of `create-fontset-from-fontset-spec' for the format.") |
606 | ||
607 | ;; Create fontsets from X resources of the name `fontset-N (class | |
608 | ;; Fontset-N)' where N is integer 0, 1, ... | |
609 | ;; The values of the resources the string of the same format as | |
acfb10b8 | 610 | ;; `standard-fontset-spec'. |
4ed46869 KH |
611 | |
612 | (defun create-fontset-from-x-resource () | |
613 | (let ((idx 0) | |
614 | fontset-spec) | |
cdd675ad DL |
615 | (while (setq fontset-spec (x-get-resource (format "fontset-%d" idx) |
616 | (format "Fontset-%d" idx))) | |
a5695549 | 617 | (create-fontset-from-fontset-spec fontset-spec t 'noerror) |
4ed46869 KH |
618 | (setq idx (1+ idx))))) |
619 | ||
4ed46869 KH |
620 | ;; |
621 | (provide 'fontset) | |
622 | ||
623 | ;;; fontset.el ends here |