code.delx.au - gnu-emacs/blob - lisp/international/fontset.el

   1 ;;; fontset.el --- commands for handling fontset
   2
   3 ;; Copyright (C) 1997-2012  Free Software Foundation, Inc.
   4 ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
   5 ;;   2005, 2006, 2007, 2008, 2009, 2010, 2011
   6 ;;   National Institute of Advanced Industrial Science and Technology (AIST)
   7 ;;   Registration Number H14PRO021
   8 ;; Copyright (C) 2003, 2006
   9 ;;   National Institute of Advanced Industrial Science and Technology (AIST)
  10 ;;   Registration Number H13PRO009
  11
  12 ;; Keywords: mule, i18n, fontset
  13
  14 ;; This file is part of GNU Emacs.
  15
  16 ;; GNU Emacs is free software: you can redistribute it and/or modify
  17 ;; it under the terms of the GNU General Public License as published by
  18 ;; the Free Software Foundation, either version 3 of the License, or
  19 ;; (at your option) any later version.
  20
  21 ;; GNU Emacs is distributed in the hope that it will be useful,
  22 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  23 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  24 ;; GNU General Public License for more details.
  25
  26 ;; You should have received a copy of the GNU General Public License
  27 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  28
  29 ;;; Commentary:
  30
  31 ;;; Code:
  32
  33 ;; Setup font-encoding-alist for all known encodings.
  34
  35 (setq font-encoding-alist
  36       (mapcar (lambda (arg)
  37                 (cons (purecopy (car arg)) (cdr arg)))
  38       '(("iso8859-1$" . iso-8859-1)
  39         ("iso8859-2$" . iso-8859-2)
  40         ("iso8859-3$" . iso-8859-3)
  41         ("iso8859-4$" . iso-8859-4)
  42         ("iso8859-5$" . iso-8859-5)
  43         ("iso8859-6$" . iso-8859-6)
  44         ("iso8859-7$" . iso-8859-7)
  45         ("iso8859-8$" . iso-8859-8)
  46         ("iso8859-9$" . iso-8859-9)
  47         ("iso8859-10$" . iso-8859-10)
  48         ("iso8859-11$" . iso-8859-11)
  49         ("iso8859-13$" . iso-8859-13)
  50         ("iso8859-14$" . iso-8859-14)
  51         ("iso8859-15$" . iso-8859-15)
  52         ("iso8859-16$" . iso-8859-16)
  53         ("ascii-0$" . ascii)
  54         ("gb2312.1980" . chinese-gb2312)
  55         ("gbk" . chinese-gbk)
  56         ("gb18030" . (unicode . nil))
  57         ("jisx0208.1978" . japanese-jisx0208-1978)
  58         ("jisx0208" . japanese-jisx0208)
  59         ("jisx0201" . jisx0201)
  60         ("jisx0212" . japanese-jisx0212)
  61         ("ksc5601.1987" . korean-ksc5601)
  62         ("cns11643.1992.*1" . chinese-cns11643-1)
  63         ("cns11643.1992.*2" . chinese-cns11643-2)
  64         ("cns11643.1992.*3" . chinese-cns11643-3)
  65         ("cns11643.1992.*4" . chinese-cns11643-4)
  66         ("cns11643.1992.*5" . chinese-cns11643-5)
  67         ("cns11643.1992.*6" . chinese-cns11643-6)
  68         ("cns11643.1992.*7" . chinese-cns11643-7)
  69         ("cns11643.92p1-0" . chinese-cns11643-1)
  70         ("cns11643.92p2-0" . chinese-cns11643-2)
  71         ("cns11643.92p3-0" . chinese-cns11643-3)
  72         ("cns11643.92p4-0" . chinese-cns11643-4)
  73         ("cns11643.92p5-0" . chinese-cns11643-5)
  74         ("cns11643.92p6-0" . chinese-cns11643-6)
  75         ("cns11643.92p7-0" . chinese-cns11643-7)
  76         ("big5" . big5)
  77         ("viscii" . viscii)
  78         ("tis620" . tis620-2533)
  79         ("microsoft-cp1251" . windows-1251)
  80         ("koi8-r" . koi8-r)
  81         ("jisx0213.2000-1" . japanese-jisx0213-1)
  82         ("jisx0213.2000-2" . japanese-jisx0213-2)
  83         ("jisx0213.2004-1" . japanese-jisx0213.2004-1)
  84         ("iso10646-1$" . (unicode-bmp . nil))
  85         ("iso10646.indian-1" . (unicode-bmp . nil))
  86         ("unicode-bmp" . (unicode-bmp . nil))
  87         ("abobe-symbol" . symbol)
  88         ("sisheng_cwnn" . chinese-sisheng)
  89         ("mulearabic-0" . arabic-digit)
  90         ("mulearabic-1" . arabic-1-column)
  91         ("mulearabic-2" . arabic-2-column)
  92         ("muleipa" . ipa)
  93         ("ethiopic-unicode" . (unicode-bmp . ethiopic))
  94         ("is13194-devanagari" . indian-is13194)
  95         ("Devanagari-CDAC" . devanagari-cdac)
  96         ("Sanskrit-CDAC" . sanskrit-cdac)
  97         ("Bengali-CDAC" . bengali-cdac)
  98         ("Assamese-CDAC" . assamese-cdac)
  99         ("Punjabi-CDAC" . punjabi-cdac)
 100         ("Gujarati-CDAC" . gujarati-cdac)
 101         ("Oriya-CDAC" . oriya-cdac)
 102         ("Tamil-CDAC" . tamil-cdac)
 103         ("Telugu-CDAC" . telugu-cdac)
 104         ("Kannada-CDAC" . kannada-cdac)
 105         ("Malayalam-CDAC" . malayalam-cdac)
 106         ("Devanagari-Akruti" . devanagari-akruti)
 107         ("Bengali-Akruti" . bengali-akruti)
 108         ("Punjabi-Akruti" . punjabi-akruti)
 109         ("Gujarati-Akruti" . gujarati-akruti)
 110         ("Oriya-Akruti" . oriya-akruti)
 111         ("Tamil-Akruti" . tamil-akruti)
 112         ("Telugu-Akruti" . telugu-akruti)
 113         ("Kannada-Akruti" . kannada-akruti)
 114         ("Malayalam-Akruti" . malayalam-akruti)
 115         ("muleindian-2" . indian-2-column)
 116         ("muleindian-1" . indian-1-column)
 117         ("mulelao-1" . mule-lao)
 118         ("muletibetan-2" . tibetan)
 119         ("muletibetan-0" . tibetan)
 120         ("muletibetan-1" . tibetan-1-column))))
 121
 122 (defvar font-encoding-charset-alist)
 123
 124 (setq font-encoding-charset-alist
 125       '((latin-iso8859-1 . iso-8859-1)
 126         (latin-iso8859-2 . iso-8859-2)
 127         (latin-iso8859-3 . iso-8859-3)
 128         (latin-iso8859-4 . iso-8859-4)
 129         (latin-iso8859-9 . iso-8859-9)
 130         (latin-iso8859-10 . iso-8859-10)
 131         (latin-iso8859-13 . iso-8859-13)
 132         (latin-iso8859-14 . iso-8859-14)
 133         (latin-iso8859-15 . iso-8859-15)
 134         (latin-iso8859-16 . iso-8859-16)
 135         (cyrillic-iso8859-5 . iso-8859-5)
 136         (greek-iso8859-7 . iso-8859-7)
 137         (arabic-iso8859-6 . iso-8859-6)
 138         (thai-tis620 . tis620-2533)
 139         (latin-jisx0201 . jisx0201)
 140         (katakana-jisx0201 . jisx0201)
 141         (chinese-big5-1 . big5)
 142         (chinese-big5-2 . big5)
 143         (vietnamese-viscii-lower . viscii)
 144         (vietnamese-viscii-upper . viscii)
 145         (tibetan . unicode-bmp)))
 146
 147 (setq script-representative-chars
 148       '((latin ?A ?Z ?a ?z #x00C0 #x0100 #x0180 #x1e00)
 149         (phonetic #x250 #x283)
 150         (greek #x3A9)
 151         (coptic #x3E2)
 152         (cyrillic #x42F)
 153         (armenian #x531)
 154         (hebrew #x5D0)
 155         (arabic #x628)
 156         (syriac #x710)
 157         (thaana #x78C)
 158         (devanagari #x915)
 159         (bengali #x995)
 160         (gurmukhi #xA15)
 161         (gujarati #xA95)
 162         (oriya #xB15)
 163         (tamil #xB95)
 164         (telugu #xC15)
 165         (kannada #xC95)
 166         (malayalam #xD15)
 167         (sinhala #xD95)
 168         (thai #xE17)
 169         (lao #xEA5)
 170         (tibetan #xF40)
 171         (burmese #x1000)
 172         (georgian #x10D3)
 173         (ethiopic #x1208)
 174         (cherokee #x13B6)
 175         (canadian-aboriginal #x14C0)
 176         (ogham #x168F)
 177         (runic #x16A0)
 178         (khmer #x1780)
 179         (mongolian #x1826)
 180         (symbol . [#x201C #x2200 #x2500])
 181         (braille #x2800)
 182         (ideographic-description #x2FF0)
 183         (cjk-misc #x300E)
 184         (kana #x304B)
 185         (bopomofo #x3105)
 186         (kanbun #x319D)
 187         (han #x5B57)
 188         (yi #xA288)
 189         (cham #xAA00)
 190         (tai-viet #xAA80)
 191         (hangul #xAC00)
 192         (linear-b #x10000)
 193         (aegean-number #x10100)
 194         (ancient-greek-number #x10140)
 195         (ancient-symbol #x10190)
 196         (phaistos-disc #x101D0)
 197         (lycian #x10280)
 198         (carian #x102A0)
 199         (olt-italic #x10300)
 200         (ugaritic #x10380)
 201         (old-persian #x103A0)
 202         (deseret #x10400)
 203         (shavian #x10450)
 204         (osmanya #x10480)
 205         (cypriot-syllabary #x10800)
 206         (phoenician #x10900)
 207         (lydian #x10920)
 208         (kharoshthi #x10A00)
 209         (cuneiform #x12000)
 210         (cuneiform-numbers-and-punctuation #x12400)
 211         (byzantine-musical-symbol #x1D000)
 212         (musical-symbol #x1D100)
 213         (ancient-greek-musical-notation #x1D200)
 214         (tai-xuan-jing-symbol #x1D300)
 215         (counting-rod-numeral #x1D360)
 216         (mahjong-tile #x1F000)
 217         (domino-tile #x1F030)))
 218
 219 (defvar otf-script-alist)
 220
 221 (setq otf-script-alist
 222       '((arab . arabic)
 223         (armn . armenian)
 224         (bali . balinese)
 225         (beng . bengali)
 226         (bopo . bopomofo)
 227         (brai . braille)
 228         (bugi . buginese)
 229         (buhd . buhid)
 230         (byzm . byzantine-musical-symbol)
 231         (cans . canadian-aboriginal)
 232         (cher . cherokee)
 233         (copt . coptic)
 234         (xsux . cuneiform)
 235         (cyrl . cyrillic)
 236         (cprt . cypriot)
 237         (dsrt . deseret)
 238         (deva . devanagari)
 239         (ethi . ethiopic)
 240         (geor . georgian)
 241         (glag . glagolitic)
 242         (goth . gothic)
 243         (grek . greek)
 244         (gujr . gujarati)
 245         (guru . gurmukhi)
 246         (hani . han)
 247         (hang . hangul)
 248         (hano . hanunoo)
 249         (hebr . hebrew)
 250         (kana . kana)
 251         (knda . kannada)
 252         (khar . kharoshthi)
 253         (khmr . khmer)
 254         (lao\  . lao)
 255         (latn . latin)
 256         (limb . limbu)
 257         (linb . linear_b)
 258         (mlym . malayalam)
 259         (math . mathematical)
 260         (mong . mongolian)
 261         (musc . musical-symbol)
 262         (mymr . burmese)
 263         (nko\  . nko)
 264         (ogam . ogham)
 265         (ital . old_italic)
 266         (xpeo . old_persian)
 267         (orya . oriya)
 268         (osma . osmanya)
 269         (phag . phags-pa)
 270         (phnx . phoenician)
 271         (runr . runic)
 272         (shaw . shavian)
 273         (sinh . sinhala)
 274         (sylo . syloti_nagri)
 275         (syrc . syriac)
 276         (tglg . tagalog)
 277         (tagb . tagbanwa)
 278         (taml . tamil)
 279         (tale . tai_le)
 280         (telu . telugu)
 281         (thaa . thaana)
 282         (thai . thai)
 283         (tibt . tibetan)
 284         (tfng . tifinagh)
 285         (ugar . ugaritic)
 286         (yi\ \   . yi)))
 287
 288 ;; Set standard fontname specification of characters in the default
 289 ;; fontset to find an appropriate font for each script/charset.  The
 290 ;; specification has the form ((SCRIPT FONT-SPEC ...) ...), where
 291 ;; FONT-SPEC is:
 292 ;;      a cons (FAMILY . REGISTRY),
 293 ;;      or a string FONT-NAME,
 294 ;;      or an object created by `font-spec'.
 295 ;;
 296 ;; FAMILY may be nil, in which case, the corresponding name of
 297 ;; default face is used.  If REGISTRY contains a character `-', the
 298 ;; string before that is embedded in `CHARSET_REGISTRY' field, and the
 299 ;; string after that is embedded in `CHARSET_ENCODING' field.  If it
 300 ;; does not contain `-', the whole string is embedded in
 301 ;; `CHARSET_REGISTRY' field, and a wild card character `*' is embedded
 302 ;; in `CHARSET_ENCODING' field.
 303 ;;
 304 ;; SCRIPT is a symbol that appears as an element of the char table
 305 ;; `char-script-table'.  SCRIPT may be a charset specifying the range
 306 ;; of characters.
 307
 308 (declare-function new-fontset "fontset.c" (name fontlist))
 309 (declare-function set-fontset-font "fontset.c"
 310                   (name target font-spec &optional frame add))
 311
 312 (eval-when-compile
 313
 314 ;; Build a data to initialize the default fontset at compile time to
 315 ;; avoid loading charsets that won't be necessary at runtime.
 316
 317 ;; The value is (CJK-REGISTRY-VECTOR TARGET-SPEC ...), where
 318 ;; CJK-REGISTRY-VECTOR is ["JISX0208.1983-0" "GB2312.1980-0" ...],
 319 ;; TARGET-SPEC is (TARGET . BITMASK) or (TARGET SPEC ...),
 320 ;; TARGET is CHAR or (FROM-CHAR . TO-CHAR),
 321 ;; BITMASK is a bitmask of indices to CJK-REGISTRY-VECTOR,
 322 ;; SPEC is a list of arguments to font-spec.
 323
 324 (defmacro build-default-fontset-data ()
 325   (let* (;;       CHARSET-REGISTRY  CHARSET            FROM-CODE TO-CODE
 326          (cjk '(("JISX0208.1983-0" japanese-jisx0208  #x2121    #x287E)
 327                 ("GB2312.1980-0"   chinese-gb2312     #x2121    #x297E)
 328                 ("BIG5-0"          big5               #xA140    #xA3FE)
 329                 ("CNS11643.1992-1" chinese-cns11643-1 #x2121    #x427E)
 330                 ("KSC5601.1987-0"  korean-ksc5601     #x2121    #x2C7E)))
 331          (scripts '((tibetan
 332                      (:registry "iso10646-1" :otf (tibt nil (ccmp blws abvs)))
 333                      (:family "mtib" :registry "iso10646-1")
 334                      (:registry "muletibetan-2"))
 335                     (ethiopic
 336                      (:registry "iso10646-1" :script ethiopic)
 337                      (:registry "ethiopic-unicode"))
 338                     (phonetic
 339                      (:registry "iso10646-1" :script phonetic)
 340                      (:registry "MuleIPA-1")
 341                      (:registry "iso10646-1"))))
 342          (cjk-table (make-char-table nil))
 343          (script-coverage
 344           #'(lambda (script)
 345               (let ((coverage))
 346                 (map-char-table
 347                  #'(lambda (range val)
 348                      (when (eq val script)
 349                        (if (consp range)
 350                            (setq range (cons (car range) (cdr range))))
 351                        (push range coverage)))
 352                  char-script-table)
 353                 coverage)))
 354          (data (list (vconcat (mapcar 'car cjk))))
 355          (i 0))
 356     (dolist (elt cjk)
 357       (let ((mask (lsh 1 i)))
 358         (map-charset-chars
 359          #'(lambda (range arg)
 360              (let ((from (car range)) (to (cdr range)))
 361                (if (< to #x110000)
 362                    (while (<= from to)
 363                      (or (memq (aref char-script-table from)
 364                                '(kana hangul han cjk-misc))
 365                          (aset cjk-table from
 366                                (logior (or (aref cjk-table from) 0) mask)))
 367                      (setq from (1+ from))))))
 368          (nth 1 elt) nil (nth 2 elt) (nth 3 elt)))
 369       (setq i (1+ i)))
 370     (map-char-table
 371      #'(lambda (range val)
 372          (if (consp range)
 373              (setq range (cons (car range) (cdr range))))
 374          (push (cons range val) data))
 375      cjk-table)
 376     (dolist (script scripts)
 377       (dolist (range (funcall script-coverage (car script)))
 378         (push (cons range (cdr script)) data)))
 379     `(quote ,(nreverse data))))
 380 )
 381
 382 (defun setup-default-fontset ()
 383   "Setup the default fontset."
 384   (new-fontset
 385    "fontset-default"
 386    `(;; for each script
 387      (latin (nil . "ISO8859-1")
 388             (nil . "ISO8859-2")
 389             (nil . "ISO8859-3")
 390             (nil . "ISO8859-4")
 391             (nil . "ISO8859-9")
 392             (nil . "ISO8859-10")
 393             (nil . "ISO8859-13")
 394             (nil . "ISO8859-14")
 395             (nil . "ISO8859-15")
 396             (nil . "ISO8859-16")
 397             (nil . "VISCII1.1-1")
 398             ,(font-spec :registry "iso10646-1" :script 'latin))
 399
 400      (thai  ,(font-spec :registry "iso10646-1" :otf '(thai nil nil (mark)))
 401             ,(font-spec :registry "iso10646-1" :script 'thai)
 402             (nil . "TIS620*")
 403             (nil . "ISO8859-11"))
 404
 405      (devanagari ,(font-spec :registry "iso10646-1" :otf '(deva nil (rphf)))
 406                  (nil . "iso10646.indian-1"))
 407      (bengali ,(font-spec :registry "iso10646-1" :otf '(beng nil (rphf))))
 408      (gurmukhi ,(font-spec :registry "iso10646-1" :otf '(guru nil (blwf))))
 409      (gujarati ,(font-spec :registry "iso10646-1" :otf '(gujr nil (rphf))))
 410      (oriya ,(font-spec :registry "iso10646-1" :otf '(orya nil (rphf))))
 411      (tamil ,(font-spec :registry "iso10646-1" :otf '(taml nil (akhn))))
 412      (telugu ,(font-spec :registry "iso10646-1" :otf '(telu nil (blwf))))
 413      (kannada ,(font-spec :registry "iso10646-1" :otf '(knda nil (rphf))))
 414      (sinhala ,(font-spec :registry "iso10646-1" :otf '(sinh nil (akhn))))
 415      (malayalam ,(font-spec :registry "iso10646-1" :otf '(mlym nil (akhn))))
 416
 417      (burmese ,(font-spec :registry "iso10646-1" :otf '(mymr nil nil))
 418               ,(font-spec :registry "iso10646-1" :script 'burmese))
 419
 420      (lao ,(font-spec :registry "iso10646-1" :otf '(lao\  nil nil (mark)))
 421           ,(font-spec :registry "iso10646-1" :script 'lao)
 422           (nil . "MuleLao-1"))
 423
 424      (tai-viet ("TaiViet" . "iso10646-1"))
 425
 426      (greek ,(font-spec :registry "iso10646-1" :script 'greek)
 427             (nil . "ISO8859-7"))
 428
 429      (cyrillic ,(font-spec :registry "iso10646-1" :script 'cyrillic)
 430                (nil . "ISO8859-5")
 431                (nil . "microsoft-cp1251")
 432                (nil . "koi8-r"))
 433
 434      (arabic ,(font-spec :registry "iso10646-1"
 435                          :otf '(arab nil (init medi fina liga)))
 436              (nil . "MuleArabic-0")
 437              (nil . "MuleArabic-1")
 438              (nil . "MuleArabic-2")
 439              (nil . "ISO8859-6"))
 440
 441      (hebrew ,(font-spec :registry "iso10646-1" :script 'hebrew)
 442              (nil . "ISO8859-8"))
 443
 444      (khmer ,(font-spec :registry "iso10646-1" :otf '(khmr nil (pres))))
 445
 446      (kana (nil . "JISX0208*")
 447            (nil . "GB2312.1980-0")
 448            (nil . "KSC5601.1987*")
 449            (nil . "JISX0201*")
 450            (nil . "JISX0213.2000-1")
 451            (nil . "JISX0213.2004-1")
 452            ,(font-spec :registry "iso10646-1" :script 'kana))
 453
 454      (bopomofo ,(font-spec :registry "iso10646-1" :script 'bopomofo)
 455                (nil . "sisheng_cwnn-0"))
 456
 457      (han (nil . "GB2312.1980-0")
 458           (nil . "JISX0208*")
 459           (nil . "JISX0212*")
 460           (nil . "big5*")
 461           (nil . "KSC5601.1987*")
 462           (nil . "CNS11643.1992-1")
 463           (nil . "CNS11643.1992-2")
 464           (nil . "CNS11643.1992-3")
 465           (nil . "CNS11643.1992-4")
 466           (nil . "CNS11643.1992-5")
 467           (nil . "CNS11643.1992-6")
 468           (nil . "CNS11643.1992-7")
 469           (nil . "gbk-0")
 470           (nil . "gb18030")
 471           (nil . "JISX0213.2000-1")
 472           (nil . "JISX0213.2000-2")
 473           (nil . "JISX0213.2004-1")
 474           ,(font-spec :registry "iso10646-1" :lang 'ja)
 475           ,(font-spec :registry "iso10646-1" :lang 'zh))
 476
 477      (cjk-misc (nil . "GB2312.1980-0")
 478                (nil . "JISX0208*")
 479                (nil . "JISX0212*")
 480                (nil . "big5*")
 481                (nil . "KSC5601.1987*")
 482                (nil . "CNS11643.1992-1")
 483                (nil . "CNS11643.1992-2")
 484                (nil . "CNS11643.1992-3")
 485                (nil . "CNS11643.1992-4")
 486                (nil . "CNS11643.1992-5")
 487                (nil . "CNS11643.1992-6")
 488                (nil . "CNS11643.1992-7")
 489                (nil . "gbk-0")
 490                (nil . "gb18030")
 491                (nil . "JISX0213.2000-1")
 492                (nil . "JISX0213.2000-2")
 493                ,(font-spec :registry "iso10646-1" :lang 'ja)
 494                ,(font-spec :registry "iso10646-1" :lang 'zh))
 495
 496      (hangul (nil . "KSC5601.1987-0")
 497              ,(font-spec :registry "iso10646-1" :lang 'ko))
 498
 499      ;; for each charset
 500      (ascii (nil . "ISO8859-1"))
 501      (arabic-digit ("*" . "MuleArabic-0"))
 502      (arabic-1-column ("*" . "MuleArabic-1"))
 503      (arabic-2-column ("*" . "MuleArabic-2"))
 504      (indian-is13194 (nil . "is13194-devanagari"))
 505      (indian-1-column ("*" . "muleindian-2"))
 506      ;; Indian CDAC
 507      (devanagari-cdac (nil . "Devanagari-CDAC"))
 508      (sanskrit-cdac (nil . "Sanskrit-CDAC"))
 509      (bengali-cdac (nil . "Bengali-CDAC"))
 510      (assamese-cdac (nil . "Assamese-CDAC"))
 511      (punjabi-cdac (nil . "Punjabi-CDAC"))
 512      (gujarati-cdac (nil . "Gujarati-CDAC"))
 513      (oriya-cdac (nil . "Oriya-CDAC"))
 514      (tamil-cdac (nil . "Tamil-CDAC"))
 515      (telugu-cdac (nil . "Telugu-CDAC"))
 516      (kannada-cdac (nil . "Kannada-CDAC"))
 517      (malayalam-cdac (nil . "Malayalam-CDAC"))
 518      ;; Indian AKRUTI
 519      (devanagari-akruti (nil . "Devanagari-Akruti"))
 520      (bengali-akruti (nil . "Bengali-Akruti"))
 521      (punjabi-akruti (nil . "Punjabi-Akruti"))
 522      (gujarati-akruti (nil . "Gujarati-Akruti"))
 523      (oriya-akruti (nil . "Oriya-Akruti"))
 524      (tamil-akruti (nil . "Tamil-Akruti"))
 525      (telugu-akruti (nil . "Telugu-Akruti"))
 526      (kannada-akruti (nil . "Kannada-Akruti"))
 527      (malayalam-akruti (nil . "Malayalam-Akruti"))
 528
 529      ;; Fallback fonts
 530      (nil (nil . "gb2312.1980")
 531           (nil . "gbk-0")
 532           (nil . "gb18030")
 533           (nil . "jisx0208")
 534           (nil . "ksc5601.1987")
 535           (nil . "CNS11643.1992-1")
 536           (nil . "CNS11643.1992-2")
 537           (nil . "CNS11643.1992-3")
 538           (nil . "CNS11643.1992-4")
 539           (nil . "CNS11643.1992-5")
 540           (nil . "CNS11643.1992-6")
 541           (nil . "CNS11643.1992-7")
 542           (nil . "big5")
 543           (nil . "jisx0213.2000-1")
 544           (nil . "jisx0213.2004-1")
 545           (nil . "jisx0212"))
 546      ))
 547
 548   ;; For simple scripts
 549   (dolist (script '(phonetic
 550                     armenian
 551                     syriac
 552                     thaana
 553                     georgian
 554                     cherokee
 555                     canadian-aboriginal
 556                     ogham
 557                     runic
 558                     symbol
 559                     braille
 560                     yi
 561                     aegean-number
 562                     ancient-greek-number
 563                     ancient-symbol
 564                     phaistos-disc
 565                     lycian
 566                     carian
 567                     olt-italic
 568                     ugaritic
 569                     old-persian
 570                     deseret
 571                     shavian
 572                     osmanya
 573                     cypriot-syllabary
 574                     phoenician
 575                     lydian
 576                     kharoshthi
 577                     cuneiform
 578                     cuneiform-numbers-and-punctuation
 579                     byzantine-musical-symbol
 580                     musical-symbol
 581                     ancient-greek-musical-notation
 582                     tai-xuan-jing-symbol
 583                     counting-rod-numeral
 584                     mahjong-tile
 585                     domino-tile))
 586     (set-fontset-font "fontset-default"
 587                       script (font-spec :registry "iso10646-1" :script script)
 588                       nil 'append))
 589
 590   ;; Special settings for `MATHEMATICAL (U+1D400..U+1D7FF)'.
 591   (dolist (math-subgroup '((#x1D400 #x1D433 mathematical-bold)
 592                            (#x1D434 #x1D467 mathematical-italic)
 593                            (#x1D468 #x1D49B mathematical-bold-italic)
 594                            (#x1D49C #x1D4CF mathematical-script)
 595                            (#x1D4D0 #x1D503 mathematical-bold-script)
 596                            (#x1D504 #x1D537 mathematical-fraktur)
 597                            (#x1D538 #x1D56B mathematical-double-struck)
 598                            (#x1D56C #x1D59F mathematical-bold-fraktur)
 599                            (#x1D5A0 #x1D5D3 mathematical-sans-serif)
 600                            (#x1D5D4 #x1D607 mathematical-sans-serif-bold)
 601                            (#x1D608 #x1D63B mathematical-sans-serif-italic)
 602                            (#x1D63C #x1D66F mathematical-sans-serif-bold-italic)
 603                            (#x1D670 #x1D6A3 mathematical-monospace)
 604                            (#x1D6A4 #x1D6A5 mathematical-italic)
 605                            (#x1D6A8 #x1D6E1 mathematical-bold)
 606                            (#x1D6E2 #x1D71B mathematical-italic)
 607                            (#x1D71C #x1D755 mathematical-bold-italic)
 608                            (#x1D756 #x1D78F mathematical-sans-serif-bold)
 609                            (#x1D790 #x1D7C9 mathematical-sans-serif-bold-italic)
 610                            (#x1D7CA #x1D7D7 mathematical-bold)
 611                            (#x1D7D8 #x1D7E1 mathematical-double-struck)
 612                            (#x1D7E2 #x1D7EB mathematical-sans-serif)
 613                            (#x1D7EC #x1D7F5 mathematical-sans-serif-bold)
 614                            (#x1D7F6 #x1D7FF mathematical-monospace)))
 615     (let ((slot (assq (nth 2 math-subgroup) script-representative-chars)))
 616       (if slot
 617           (if (vectorp (cdr slot))
 618               (setcdr slot (vconcat (cdr slot) (vector (car math-subgroup))))
 619             (setcdr slot (vector (cadr slot) (car math-subgroup))))
 620         (setq slot (list (nth 2 math-subgroup) (car math-subgroup)))
 621         (nconc script-representative-chars (list slot))))
 622     (set-fontset-font
 623      "fontset-default"
 624      (cons (car math-subgroup) (nth 1 math-subgroup))
 625      (font-spec :registry "iso10646-1" :script (nth 2 math-subgroup))))
 626
 627   ;; Append CJK fonts for characters other than han, kana, cjk-misc.
 628   ;; Append fonts for scripts whose name is also a charset name.
 629   (let* ((data (build-default-fontset-data))
 630          (registries (car data)))
 631     (dolist (target-spec (cdr data))
 632       (let ((target (car target-spec))
 633             (spec (cdr target-spec)))
 634         (if (integerp spec)
 635             (dotimes (i (length registries))
 636               (if (> (logand spec (lsh 1 i)) 0)
 637                   (set-fontset-font "fontset-default" target
 638                                     (cons nil (aref registries i))
 639                                     nil 'append)))
 640         (dolist (args spec)
 641           (set-fontset-font "fontset-default" target
 642                             (apply 'font-spec args) nil 'append))))))
 643
 644   ;; Append Unicode fonts.
 645   ;; This may find fonts with more variants (bold, italic) but which
 646   ;; don't cover many characters.
 647   (set-fontset-font "fontset-default" nil
 648                     '(nil . "iso10646-1") nil 'prepend)
 649   ;; These may find fonts that cover many characters but with fewer
 650   ;; variants.
 651   (set-fontset-font "fontset-default" nil
 652                     '("gnu-unifont" . "iso10646-1") nil 'prepend)
 653   (set-fontset-font "fontset-default" nil
 654                     '("mutt-clearlyu" . "iso10646-1") nil 'prepend)
 655   (set-fontset-font "fontset-default" '(#x20000 . #x2FFFF)
 656                     '(nil . "unicode-sip"))
 657
 658   (set-fontset-font "fontset-default" '(#xE000 . #xF8FF)
 659                     '(nil . "iso10646-1"))
 660   ;; Don't try the fallback fonts even if no suitable font was found
 661   ;; by the above font-spec.
 662   (set-fontset-font "fontset-default" '(#xE000 . #xF8FF) nil nil 'append))
 663
 664 (defun create-default-fontset ()
 665   "Create the default fontset.
 666 Internal use only.  Should be called at startup time."
 667   (condition-case err
 668       (setup-default-fontset)
 669     (error (display-warning
 670             'initialization
 671             (format "Creation of the default fontsets failed: %s" err)
 672             :error))))
 673
 674 ;; These are the registered registries/encodings from
 675 ;; ftp://ftp.x.org/pub/DOCS/registry 2001/06/01
 676
 677 ;; Name                                            Reference
 678 ;; ----                                            ---------
 679 ;; "DEC"                                           [27]
 680 ;;         registry prefix
 681 ;; "DEC.CNS11643.1986-2"                           [53]
 682 ;;         CNS11643 2-plane using the encoding
 683 ;;         suggested in that standard
 684 ;; "DEC.DTSCS.1990-2"                              [54]
 685 ;;         DEC Taiwan Supplemental Character Set
 686 ;; "fujitsu.u90x01.1991-0"                         [87]
 687 ;; "fujitsu.u90x03.1991-0"                         [87]
 688 ;; "GB2312.1980-0"                                 [39],[12]
 689 ;;         China (PRC) Hanzi, GL encoding
 690 ;; "GB2312.1980-1"                                 [39]
 691 ;;         (deprecated)
 692 ;;         China (PRC) Hanzi, GR encoding
 693 ;; "HP-Arabic8"                                    [36]
 694 ;;         HPARABIC8 8-bit character set
 695 ;; "HP-East8"                                      [36]
 696 ;;         HPEAST8 8-bit character set
 697 ;; "HP-Greek8"                                     [36]
 698 ;;         HPGREEK8 8-bit character set
 699 ;; "HP-Hebrew8"                                    [36]
 700 ;;         HPHEBREW8 8-bit character set
 701 ;; "HP-Japanese15"                                 [36]
 702 ;;         HPJAPAN15 15-bit character set,
 703 ;;         modified from industry de facto
 704 ;;         standard Shift-JIS
 705 ;; "HP-Kana8"                                      [36]
 706 ;;         HPKANA8 8-bit character set
 707 ;; "HP-Korean15"                                   [36]
 708 ;;         HPKOREAN15 15-bit character set
 709 ;; "HP-Roman8"                                     [36]
 710 ;;         HPROMAN8 8-bit character set
 711 ;; "HP-SChinese15"                                 [36]
 712 ;;         HPSCHINA15 15-bit character set for
 713 ;;         support of Simplified Chinese
 714 ;; "HP-TChinese15"                                 [36]
 715 ;;         HPTCHINA15 15-bit character set for
 716 ;;         support of Traditional Chinese
 717 ;; "HP-Turkish8"                                   [36]
 718 ;;         HPTURKISH8 8-bit character set
 719 ;; "IPSYS"                                         [59]
 720 ;;         registry prefix
 721 ;; "IPSYS.IE-1"                                    [59]
 722 ;; "ISO2022"<REG>"-"<ENC>                          [44]
 723 ;; "ISO646.1991-IRV"                               [107]
 724 ;;         ISO 646 International Reference Version
 725 ;; "ISO8859-1"                                     [15],[12]
 726 ;;         ISO Latin alphabet No. 1
 727 ;; "ISO8859-2"                                     [15],[12]
 728 ;;         ISO Latin alphabet No. 2
 729 ;; "ISO8859-3"                                     [15],[12]
 730 ;;         ISO Latin alphabet No. 3
 731 ;; "ISO8859-4"                                     [15],[12]
 732 ;;         ISO Latin alphabet No. 4
 733 ;; "ISO8859-5"                                     [15],[12]
 734 ;;         ISO Latin/Cyrillic alphabet
 735 ;; "ISO8859-6"                                     [15],[12]
 736 ;;         ISO Latin/Arabic alphabet
 737 ;; "ISO8859-7"                                     [15],[12]
 738 ;;         ISO Latin/Greek alphabet
 739 ;; "ISO8859-8"                                     [15],[12]
 740 ;;         ISO Latin/Hebrew alphabet
 741 ;; "ISO8859-9"                                     [15],[12]
 742 ;;         ISO Latin alphabet No. 5
 743 ;; "ISO8859-10"                                    [15],[12]
 744 ;;         ISO Latin alphabet No. 6
 745 ;; "ISO8859-13"                                    [15],[12]
 746 ;;         ISO Latin alphabet No. 7
 747 ;; "ISO8859-14"                                    [15],[12]
 748 ;;         ISO Latin alphabet No. 8
 749 ;; "ISO8859-15"                                    [15],[12]
 750 ;;         ISO Latin alphabet No. 9
 751 ;; "FCD8859-15"                                    [7]
 752 ;;         (deprecated)
 753 ;;         ISO Latin alphabet No. 9, Final Committee Draft
 754 ;; "ISO10646-1"                                    [133]
 755 ;;         Unicode Universal Multiple-Octet Coded Character Set
 756 ;; "ISO10646-MES"                                  [133]
 757 ;;         (deprecated)
 758 ;;         Unicode Minimum European Subset
 759 ;; "JISX0201.1976-0"                               [38],[12]
 760 ;;         8-Bit Alphanumeric-Katakana Code
 761 ;; "JISX0208.1983-0"                               [40],[12]
 762 ;;         Japanese Graphic Character Set,
 763 ;;         GL encoding
 764 ;; "JISX0208.1990-0"                               [71]
 765 ;;         Japanese Graphic Character Set,
 766 ;;         GL encoding
 767 ;; "JISX0208.1983-1"                               [40]
 768 ;;         (deprecated)
 769 ;;         Japanese Graphic Character Set,
 770 ;;         GR encoding
 771 ;; "JISX0212.1990-0"                               [72]
 772 ;;         Supplementary Japanese Graphic Character Set,
 773 ;;         GL encoding
 774 ;; "KOI8-R"                                        [119]
 775 ;;         Cyrillic alphabet
 776 ;; "KSC5601.1987-0"                                [41],[12]
 777 ;;         Korean Graphic Character Set,
 778 ;;         GL encoding
 779 ;; "KSC5601.1987-1"                                [41]
 780 ;;         (deprecated)
 781 ;;         Korean Graphic Character Set,
 782 ;;         GR encoding
 783 ;; "omron_CNS11643-0"                              [45]
 784 ;; "omron_CNS11643-1"                              [45]
 785 ;; "omron_BIG5-0"                                  [45]
 786 ;; "omron_BIG5-1"                                  [45]
 787 ;; "wn.tamil.1993"                                 [103]
 788
 789 (defun set-font-encoding (pattern charset)
 790   "Set arguments in `font-encoding-alist' (which see)."
 791   (let ((slot (assoc pattern font-encoding-alist)))
 792     (if slot
 793         (setcdr slot charset)
 794       (setq font-encoding-alist
 795             (cons (cons pattern charset) font-encoding-alist)))))
 796
 797 (defvar x-pixel-size-width-font-regexp)
 798 (defvar vertical-centering-font-regexp)
 799
 800 ;; Setting for suppressing XLoadQueryFont on big fonts.
 801 (setq x-pixel-size-width-font-regexp
 802       (purecopy "gb2312\\|gbk\\|gb18030\\|jisx0208\\|ksc5601\\|cns11643\\|big5"))
 803
 804 ;; These fonts require vertical centering.
 805 (setq vertical-centering-font-regexp
 806       (purecopy "gb2312\\|gbk\\|gb18030\\|jisx0208\\|jisx0212\\|ksc5601\\|cns11643\\|big5"))
 807
 808 ;; CDAC fonts are actually smaller than their design sizes.
 809 (setq face-font-rescale-alist
 810       (list (cons (purecopy "-cdac$")  1.3)))
 811
 812 (defvar x-font-name-charset-alist nil
 813   "This variable has no meaning now.  Just kept for backward compatibility.")
 814
 815 ;;; XLFD (X Logical Font Description) format handler.
 816
 817 ;; Define XLFD's field index numbers.           ; field name
 818 (defconst xlfd-regexp-family-subnum 0)          ; FOUNDRY and FAMILY
 819 (defconst xlfd-regexp-weight-subnum 1)          ; WEIGHT_NAME
 820 (defconst xlfd-regexp-slant-subnum 2)           ; SLANT
 821 (defconst xlfd-regexp-swidth-subnum 3)          ; SETWIDTH_NAME
 822 (defconst xlfd-regexp-adstyle-subnum 4)         ; ADD_STYLE_NAME
 823 (defconst xlfd-regexp-pixelsize-subnum 5)       ; PIXEL_SIZE
 824 (defconst xlfd-regexp-pointsize-subnum 6)       ; POINT_SIZE
 825 (defconst xlfd-regexp-resx-subnum 7)            ; RESOLUTION_X
 826 (defconst xlfd-regexp-resy-subnum 8)            ; RESOLUTION_Y
 827 (defconst xlfd-regexp-spacing-subnum 8)         ; SPACING
 828 (defconst xlfd-regexp-avgwidth-subnum 10)       ; AVERAGE_WIDTH
 829 (defconst xlfd-regexp-registry-subnum 11)       ; REGISTRY and ENCODING
 830
 831 ;; Regular expression matching against a fontname which conforms to
 832 ;; XLFD (X Logical Font Description).  All fields in XLFD should be
 833 ;; not be omitted (but can be a wild card) to be matched.
 834 (defconst xlfd-tight-regexp
 835   "^\
 836 -\\([^-]*-[^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)\
 837 -\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)\
 838 -\\([^-]*\\)-\\([^-]*\\)-\\([^-]*-[^-]*\\)$")
 839
 840 ;; Regular expression matching against a fontname which conforms to
 841 ;; XLFD (X Logical Font Description).  All fields in XLFD from FOUNDRY
 842 ;; to ADSTYLE, REGISTRY, and ENCODING should be not be omitted (but
 843 ;; can be a wild card) to be matched.
 844 (defconst xlfd-style-regexp
 845   "^\
 846 -\\([^-]*-[^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-.*\
 847 -\\([^-]*-[^-]*\\)$")
 848
 849 ;; List of field numbers of XLFD whose values are numeric.
 850 (defconst xlfd-regexp-numeric-subnums
 851   (list xlfd-regexp-pixelsize-subnum    ;5
 852         xlfd-regexp-pointsize-subnum    ;6
 853         xlfd-regexp-resx-subnum         ;7
 854         xlfd-regexp-resy-subnum         ;8
 855         xlfd-regexp-avgwidth-subnum     ;10
 856         ))
 857
 858 (defun x-decompose-font-name (pattern)
 859   "Decompose PATTERN into XLFD fields and return a vector of the fields.
 860 The length of the vector is 12.
 861 The FOUNDRY and FAMILY fields are concatenated and stored in the first
 862 element of the vector.
 863 The REGISTRY and ENCODING fields are concatenated and stored in the last
 864 element of the vector.
 865
 866 Return nil if PATTERN doesn't conform to XLFD."
 867   (if (string-match xlfd-tight-regexp pattern)
 868       (let ((xlfd-fields (make-vector 12 nil)))
 869         (dotimes (i 12)
 870           (aset xlfd-fields i (match-string (1+ i) pattern)))
 871         (dotimes (i 12)
 872           (if (string-match "^[*-]+$" (aref xlfd-fields i))
 873               (aset xlfd-fields i nil)))
 874         xlfd-fields)))
 875
 876 (defun x-compose-font-name (fields &optional reduce)
 877   "Compose X fontname from FIELDS.
 878 FIELDS is a vector of XLFD fields, of length 12.
 879 If a field is nil, wild-card letter `*' is embedded.
 880 Optional argument REDUCE exists just for backward compatibility,
 881 and is always ignored."
 882   (concat "-" (mapconcat (lambda (x) (or x "*")) fields "-")))
 883
 884
 885 (defun x-must-resolve-font-name (xlfd-fields)
 886   "Like `x-resolve-font-name', but always return a font name.
 887 XLFD-FIELDS is a vector of XLFD (X Logical Font Description) fields.
 888 If no font matching XLFD-FIELDS is available, successively replace
 889 parts of the font name pattern with \"*\" until some font is found.
 890 Value is name of that font."
 891   (let ((ascii-font nil) (index 0))
 892     (while (and (null ascii-font) (<= index xlfd-regexp-registry-subnum))
 893       (let ((pattern (x-compose-font-name xlfd-fields)))
 894         (condition-case nil
 895             (setq ascii-font (x-resolve-font-name pattern))
 896           (error
 897            (message "Warning: no fonts matching `%s' available" pattern)
 898            (aset xlfd-fields index "*")
 899            (setq index (1+ index))))))
 900     (unless ascii-font
 901       (error "No fonts found"))
 902     ascii-font))
 903
 904
 905 (defun x-complement-fontset-spec (default-spec fontlist)
 906   "Complement elements of FONTLIST based on DEFAULT-SPEC.
 907 DEFAULT-SPEC is a font-spec object providing default font properties.
 908 FONTLIST is an alist of script names vs the corresponding font names.
 909
 910 The font names are parsed and unspecified font properties are
 911 given from DEFAULT-SPEC."
 912   (let ((prop-list '(:foundry :family :weight :slant :width :adstyle :size)))
 913     (dolist (elt fontlist)
 914       (let ((spec (font-spec :name (cadr elt))))
 915         (dolist (prop prop-list)
 916           (let ((val (font-get spec prop)))
 917             (or val
 918                 (font-put spec prop (font-get default-spec prop)))))
 919         (setcar (cdr elt) spec)))
 920     fontlist))
 921
 922 (defun fontset-name-p (fontset)
 923   "Return non-nil if FONTSET is valid as fontset name.
 924 A valid fontset name should conform to XLFD (X Logical Font Description)
 925 with \"fontset\" in `<CHARSET_REGISTRY>' field."
 926   (and (string-match xlfd-tight-regexp fontset)
 927        (string= (match-string (1+ xlfd-regexp-registry-subnum) fontset)
 928                 "fontset")))
 929
 930 (declare-function fontset-list "fontset.c" ())
 931
 932 (defun generate-fontset-menu ()
 933   "Return list to be appended to `x-fixed-font-alist'.
 934 Done when `mouse-set-font' is called."
 935   (let (l)
 936     (dolist (fontset (fontset-list))
 937       (or (string-match "fontset-default$" fontset)
 938           (string-match "fontset-auto[0-9]+$" fontset)
 939           (push (list (fontset-plain-name fontset) fontset) l)))
 940     (cons "Fontset"
 941           (sort l #'(lambda (x y) (string< (car x) (car y)))))))
 942
 943 (declare-function query-fontset "fontset.c" (pattern &optional regexpp))
 944
 945 (defun fontset-plain-name (fontset)
 946   "Return a plain and descriptive name of FONTSET."
 947   (if (not (setq fontset (query-fontset fontset)))
 948       (error "Invalid fontset: %s" fontset))
 949   (let ((xlfd-fields (x-decompose-font-name fontset)))
 950     (if xlfd-fields
 951         (let ((family (aref xlfd-fields xlfd-regexp-family-subnum))
 952               (weight (aref xlfd-fields xlfd-regexp-weight-subnum))
 953               (slant  (aref xlfd-fields xlfd-regexp-slant-subnum))
 954               (swidth (aref xlfd-fields xlfd-regexp-swidth-subnum))
 955               (size   (aref xlfd-fields xlfd-regexp-pixelsize-subnum))
 956               (nickname (aref xlfd-fields xlfd-regexp-registry-subnum))
 957               name)
 958           (if (not (string-match "^fontset-\\(.*\\)$" nickname))
 959               (setq nickname family)
 960             (setq nickname (match-string 1 nickname)))
 961           (if (and size (> (string-to-number size) 0))
 962               (setq name (format "%s: %s-dot" nickname size))
 963             (setq name nickname))
 964           (and weight
 965                (cond ((string-match "^medium$" weight)
 966                       (setq name (concat name " " "medium")))
 967                      ((string-match "^bold$\\|^demibold$" weight)
 968                       (setq name (concat name " " weight)))))
 969           (and slant
 970                (cond ((string-match "^i$" slant)
 971                       (setq name (concat name " " "italic")))
 972                      ((string-match "^o$" slant)
 973                       (setq name (concat name " " "slant")))
 974                      ((string-match "^ri$" slant)
 975                       (setq name (concat name " " "reverse italic")))
 976                      ((string-match "^ro$" slant)
 977                       (setq name (concat name " " "reverse slant")))))
 978           name)
 979       fontset)))
 980
 981 (defvar charset-script-alist
 982   '((ascii . latin)
 983     (latin-iso8859-1 . latin)
 984     (latin-iso8859-2 . latin)
 985     (latin-iso8859-3 . latin)
 986     (latin-iso8859-4 . latin)
 987     (latin-iso8859-9 . latin)
 988     (latin-iso8859-10 . latin)
 989     (latin-iso8859-13 . latin)
 990     (latin-iso8859-14 . latin)
 991     (latin-iso8859-15 . latin)
 992     (latin-iso8859-16 . latin)
 993     (latin-jisx0201 . latin)
 994     (thai-tis620 . thai)
 995     (cyrillic-iso8859-5 . cyrillic)
 996     (arabic-iso8859-6 . arabic)
 997     (greek-iso8859-7 . latin)
 998     (hebrew-iso8859-8 . latin)
 999     (katakana-jisx0201 . kana)
1000     (chinese-gb2312 . han)
1001     (chinese-gbk . han)
1002     (gb18030-2-byte . han)
1003     (gb18030-4-byte-bmp . han)
1004     (gb18030-4-byte-ext-1 . han)
1005     (gb18030-4-byte-ext-2 . han)
1006     (gb18030-4-byte-smp . han)
1007     (chinese-big5-1 . han)
1008     (chinese-big5-2 . han)
1009     (chinese-cns11643-1 . han)
1010     (chinese-cns11643-2 . han)
1011     (chinese-cns11643-3 . han)
1012     (chinese-cns11643-4 . han)
1013     (chinese-cns11643-5 . han)
1014     (chinese-cns11643-6 . han)
1015     (chinese-cns11643-7 . han)
1016     (japanese-jisx0208 . han)
1017     (japanese-jisx0208-1978 . han)
1018     (japanese-jisx0212 . han)
1019     (japanese-jisx0213-1 . han)
1020     (japanese-jisx0213-2 . han)
1021     (korean-ksc5601 . hangul)
1022     (chinese-sisheng . bopomofo)
1023     (vietnamese-viscii-lower . latin)
1024     (vietnamese-viscii-upper . latin)
1025     (arabic-digit . arabic)
1026     (arabic-1-column . arabic)
1027     (arabic-2-column . arabic)
1028     (indian-is13194 . devanagari)
1029     (indian-glyph . devanagari)
1030     (indian-1-column . devanagari)
1031     (indian-2-column . devanagari)
1032     (tibetan-1-column . tibetan))
1033   "Alist of charsets vs the corresponding most appropriate scripts.
1034
1035 This alist is used by the function `create-fontset-from-fontset-spec'
1036 to map charsets to scripts.")
1037
1038 (defun create-fontset-from-fontset-spec (fontset-spec
1039                                          &optional style-variant noerror)
1040   "Create a fontset from fontset specification string FONTSET-SPEC.
1041 FONTSET-SPEC is a string of the format:
1042         FONTSET-NAME,SCRIPT-NAME0:FONT-NAME0,SCRIPT-NAME1:FONT-NAME1, ...
1043 Any number of SPACE, TAB, and NEWLINE can be put before and after commas.
1044
1045 When a frame uses the fontset as the `font' parameter, the frame's
1046 default font name is derived from FONTSET-NAME by substituting
1047 \"iso8859-1\" for the tail part \"fontset-XXX\".  But, if SCRIPT-NAMEn
1048 is \"ascii\", use the corresponding FONT-NAMEn as the default font
1049 name.
1050
1051 Optional 2nd and 3rd arguments exist just for backward compatibility,
1052 and are ignored.
1053
1054 It returns a name of the created fontset.
1055
1056 For backward compatibility, SCRIPT-NAME may be a charset name, in
1057 which case, the corresponding script is decided by the variable
1058 `charset-script-alist' (which see)."
1059   (or (string-match "^[^,]+" fontset-spec)
1060       (error "Invalid fontset spec: %s" fontset-spec))
1061   (let ((idx (match-end 0))
1062         (name (match-string 0 fontset-spec))
1063         default-spec target script fontlist)
1064     (or (string-match xlfd-tight-regexp name)
1065         (error "Fontset name \"%s\" not conforming to XLFD" name))
1066     (setq default-spec (font-spec :name name))
1067     ;; At first, extract pairs of charset and fontname from FONTSET-SPEC.
1068     (while (string-match "[, \t\n]*\\([^:]+\\):[ \t]*\\([^,]+\\)"
1069                          fontset-spec idx)
1070       (setq idx (match-end 0))
1071       (setq target (intern (match-string 1 fontset-spec)))
1072       (cond ((or (eq target 'ascii)
1073                  (memq target (char-table-extra-slot char-script-table 0)))
1074              (push (list target (match-string 2 fontset-spec)) fontlist))
1075             ((setq script (cdr (assq target charset-script-alist)))
1076              (push (list script (match-string 2 fontset-spec)) fontlist))
1077             ((charsetp target)
1078              (push (list target (match-string 2 fontset-spec)) fontlist))))
1079
1080     ;; Complement FONTLIST.
1081     (setq fontlist (x-complement-fontset-spec default-spec fontlist))
1082
1083     ;; Create a fontset.
1084     (new-fontset name (nreverse fontlist))))
1085
1086 (defun create-fontset-from-ascii-font (font &optional resolved-font
1087                                             fontset-name)
1088   "Create a fontset from an ASCII font FONT.
1089
1090 Optional 2nd arg RESOLVED-FONT is a resolved name of FONT.
1091 If omitted, `x-resolve-font-name' is called to get the resolved name.
1092 At this time, if FONT is not available, an error is signaled.
1093
1094 Optional 3rd arg FONTSET-NAME is a string to be used in
1095 `<CHARSET_ENCODING>' fields of a new fontset name.  If it is omitted,
1096 an appropriate name is generated automatically.
1097
1098 It returns a name of the created fontset."
1099   (setq font (downcase font))
1100   (setq resolved-font
1101         (downcase (or resolved-font (x-resolve-font-name font))))
1102   (let ((xlfd (x-decompose-font-name resolved-font))
1103         fontset)
1104     (if fontset-name
1105         (setq fontset-name (downcase fontset-name))
1106       (if (query-fontset "fontset-startup")
1107           (setq fontset-name
1108                 (subst-char-in-string
1109                  ?- ?_ (aref xlfd xlfd-regexp-registry-subnum) t))
1110         (setq fontset-name "startup")))
1111     (aset xlfd xlfd-regexp-registry-subnum
1112           (format "fontset-%s" fontset-name))
1113     (setq fontset (x-compose-font-name xlfd))
1114     (or (query-fontset fontset)
1115         (create-fontset-from-fontset-spec (concat fontset ", ascii:" font)))))
1116
1117 \f
1118 ;; Create standard fontset from 16 dots fonts which are the most widely
1119 ;; installed fonts.  Fonts for Chinese-GB, Korean, and Chinese-CNS are
1120 ;; specified here because FAMILY of those fonts are not "fixed" in
1121 ;; many cases.
1122 (defvar standard-fontset-spec
1123   (purecopy "-*-fixed-medium-r-normal-*-16-*-*-*-*-*-fontset-standard")
1124   "String of fontset spec of the standard fontset.
1125 You have the biggest chance to display international characters
1126 with correct glyphs by using the standard fontset.
1127 See the documentation of `create-fontset-from-fontset-spec' for the format.")
1128
1129
1130 ;; Create fontsets from X resources of the name `fontset-N (class
1131 ;; Fontset-N)' where N is integer 0, 1, ...
1132 ;; The values of the resources the string of the same format as
1133 ;; `standard-fontset-spec'.
1134
1135 (declare-function x-get-resource "frame.c"
1136                   (attribute class &optional component subclass))
1137
1138 (defun create-fontset-from-x-resource ()
1139   (let ((idx 0)
1140         fontset-spec)
1141     (while (setq fontset-spec (x-get-resource (format "fontset-%d" idx)
1142                                               (format "Fontset-%d" idx)))
1143       (condition-case nil
1144           (create-fontset-from-fontset-spec fontset-spec t)
1145         (error (display-warning
1146                 'initialization
1147                 (format "Fontset-%d: invalid specification in X resource" idx)
1148                 :warning)))
1149       (setq idx (1+ idx)))))
1150
1151 ;;
1152 (provide 'fontset)
1153
1154 ;;; fontset.el ends here