lisp/international/fontset.el

   1 ;;; fontset.el --- commands for handling fontset
   2
   3 ;; Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
   4 ;;   2005, 2006, 2007, 2008, 2009, 2010  Free Software Foundation, Inc.
   5 ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
   6 ;;   2005, 2006, 2007, 2008, 2009, 2010
   7 ;;   National Institute of Advanced Industrial Science and Technology (AIST)
   8 ;;   Registration Number H14PRO021
   9 ;; Copyright (C) 2003, 2006
  10 ;;   National Institute of Advanced Industrial Science and Technology (AIST)
  11 ;;   Registration Number H13PRO009
  12
  13 ;; Keywords: mule, i18n, fontset
  14
  15 ;; This file is part of GNU Emacs.
  16
  17 ;; GNU Emacs is free software: you can redistribute it and/or modify
  18 ;; it under the terms of the GNU General Public License as published by
  19 ;; the Free Software Foundation, either version 3 of the License, or
  20 ;; (at your option) any later version.
  21
  22 ;; GNU Emacs is distributed in the hope that it will be useful,
  23 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  24 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  25 ;; GNU General Public License for more details.
  26
  27 ;; You should have received a copy of the GNU General Public License
  28 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  29
  30 ;;; Commentary:
  31
  32 ;;; Code:
  33
  34 ;; Setup font-encoding-alist for all known encodings.
  35
  36 (setq font-encoding-alist
  37       (mapcar (lambda (arg)
  38                 (cons (purecopy (car arg)) (cdr arg)))
  39       '(("iso8859-1$" . iso-8859-1)
  40         ("iso8859-2$" . iso-8859-2)
  41         ("iso8859-3$" . iso-8859-3)
  42         ("iso8859-4$" . iso-8859-4)
  43         ("iso8859-5$" . iso-8859-5)
  44         ("iso8859-6$" . iso-8859-6)
  45         ("iso8859-7$" . iso-8859-7)
  46         ("iso8859-8$" . iso-8859-8)
  47         ("iso8859-9$" . iso-8859-9)
  48         ("iso8859-10$" . iso-8859-10)
  49         ("iso8859-11$" . iso-8859-11)
  50         ("iso8859-13$" . iso-8859-13)
  51         ("iso8859-14$" . iso-8859-14)
  52         ("iso8859-15$" . iso-8859-15)
  53         ("iso8859-16$" . iso-8859-16)
  54         ("ascii-0$" . ascii)
  55         ("gb2312.1980" . chinese-gb2312)
  56         ("gbk" . chinese-gbk)
  57         ("gb18030" . (unicode . nil))
  58         ("jisx0208.1978" . japanese-jisx0208-1978)
  59         ("jisx0208" . japanese-jisx0208)
  60         ("jisx0201" . jisx0201)
  61         ("jisx0212" . japanese-jisx0212)
  62         ("ksc5601.1987" . korean-ksc5601)
  63         ("cns11643.1992.*1" . chinese-cns11643-1)
  64         ("cns11643.1992.*2" . chinese-cns11643-2)
  65         ("cns11643.1992.*3" . chinese-cns11643-3)
  66         ("cns11643.1992.*4" . chinese-cns11643-4)
  67         ("cns11643.1992.*5" . chinese-cns11643-5)
  68         ("cns11643.1992.*6" . chinese-cns11643-6)
  69         ("cns11643.1992.*7" . chinese-cns11643-7)
  70         ("cns11643.92p1-0" . chinese-cns11643-1)
  71         ("cns11643.92p2-0" . chinese-cns11643-2)
  72         ("cns11643.92p3-0" . chinese-cns11643-3)
  73         ("cns11643.92p4-0" . chinese-cns11643-4)
  74         ("cns11643.92p5-0" . chinese-cns11643-5)
  75         ("cns11643.92p6-0" . chinese-cns11643-6)
  76         ("cns11643.92p7-0" . chinese-cns11643-7)
  77         ("big5" . big5)
  78         ("viscii" . viscii)
  79         ("tis620" . tis620-2533)
  80         ("microsoft-cp1251" . windows-1251)
  81         ("koi8-r" . koi8-r)
  82         ("jisx0213.2000-1" . japanese-jisx0213-1)
  83         ("jisx0213.2000-2" . japanese-jisx0213-2)
  84         ("jisx0213.2004-1" . japanese-jisx0213.2004-1)
  85         ("iso10646-1$" . (unicode-bmp . nil))
  86         ("iso10646.indian-1" . (unicode-bmp . nil))
  87         ("unicode-bmp" . (unicode-bmp . nil))
  88         ("abobe-symbol" . symbol)
  89         ("sisheng_cwnn" . chinese-sisheng)
  90         ("mulearabic-0" . arabic-digit)
  91         ("mulearabic-1" . arabic-1-column)
  92         ("mulearabic-2" . arabic-2-column)
  93         ("muleipa" . ipa)
  94         ("ethiopic-unicode" . (unicode-bmp . ethiopic))
  95         ("is13194-devanagari" . indian-is13194)
  96         ("Devanagari-CDAC" . devanagari-cdac)
  97         ("Sanskrit-CDAC" . sanskrit-cdac)
  98         ("Bengali-CDAC" . bengali-cdac)
  99         ("Assamese-CDAC" . assamese-cdac)
 100         ("Punjabi-CDAC" . punjabi-cdac)
 101         ("Gujarati-CDAC" . gujarati-cdac)
 102         ("Oriya-CDAC" . oriya-cdac)
 103         ("Tamil-CDAC" . tamil-cdac)
 104         ("Telugu-CDAC" . telugu-cdac)
 105         ("Kannada-CDAC" . kannada-cdac)
 106         ("Malayalam-CDAC" . malayalam-cdac)
 107         ("Devanagari-Akruti" . devanagari-akruti)
 108         ("Bengali-Akruti" . bengali-akruti)
 109         ("Punjabi-Akruti" . punjabi-akruti)
 110         ("Gujarati-Akruti" . gujarati-akruti)
 111         ("Oriya-Akruti" . oriya-akruti)
 112         ("Tamil-Akruti" . tamil-akruti)
 113         ("Telugu-Akruti" . telugu-akruti)
 114         ("Kannada-Akruti" . kannada-akruti)
 115         ("Malayalam-Akruti" . malayalam-akruti)
 116         ("muleindian-2" . indian-2-column)
 117         ("muleindian-1" . indian-1-column)
 118         ("mulelao-1" . mule-lao)
 119         ("muletibetan-2" . tibetan)
 120         ("muletibetan-0" . tibetan)
 121         ("muletibetan-1" . tibetan-1-column))))
 122
 123 (defvar font-encoding-charset-alist)
 124
 125 (setq font-encoding-charset-alist
 126       '((latin-iso8859-1 . iso-8859-1)
 127         (latin-iso8859-2 . iso-8859-2)
 128         (latin-iso8859-3 . iso-8859-3)
 129         (latin-iso8859-4 . iso-8859-4)
 130         (latin-iso8859-9 . iso-8859-9)
 131         (latin-iso8859-10 . iso-8859-10)
 132         (latin-iso8859-13 . iso-8859-13)
 133         (latin-iso8859-14 . iso-8859-14)
 134         (latin-iso8859-15 . iso-8859-15)
 135         (latin-iso8859-16 . iso-8859-16)
 136         (cyrillic-iso8859-5 . iso-8859-5)
 137         (greek-iso8859-7 . iso-8859-7)
 138         (arabic-iso8859-6 . iso-8859-6)
 139         (thai-tis620 . tis620-2533)
 140         (latin-jisx0201 . jisx0201)
 141         (katakana-jisx0201 . jisx0201)
 142         (chinese-big5-1 . big5)
 143         (chinese-big5-2 . big5)
 144         (vietnamese-viscii-lower . viscii)
 145         (vietnamese-viscii-upper . viscii)
 146         (tibetan . unicode-bmp)))
 147
 148 (setq script-representative-chars
 149       '((latin ?A ?Z ?a ?z #x00C0 #x0100 #x0180 #x1e00)
 150         (phonetic #x250 #x283)
 151         (greek #x3A9)
 152         (coptic #x3E2)
 153         (cyrillic #x42F)
 154         (armenian #x531)
 155         (hebrew #x5D0)
 156         (arabic #x628)
 157         (syriac #x710)
 158         (thaana #x78C)
 159         (devanagari #x915)
 160         (bengali #x995)
 161         (gurmukhi #xA15)
 162         (gujarati #xA95)
 163         (oriya #xB15)
 164         (tamil #xB95)
 165         (telugu #xC15)
 166         (kannada #xC95)
 167         (malayalam #xD15)
 168         (sinhala #xD95)
 169         (thai #xE17)
 170         (lao #xEA5)
 171         (tibetan #xF40)
 172         (myanmar #x1000)
 173         (georgian #x10D3)
 174         (ethiopic #x1208)
 175         (cherokee #x13B6)
 176         (canadian-aboriginal #x14C0)
 177         (ogham #x168F)
 178         (runic #x16A0)
 179         (khmer #x1780)
 180         (mongolian #x1826)
 181         (symbol . [#x201C #x2200 #x2500])
 182         (braille #x2800)
 183         (ideographic-description #x2FF0)
 184         (cjk-misc #x300E)
 185         (kana #x304B)
 186         (bopomofo #x3105)
 187         (kanbun #x319D)
 188         (han #x5B57)
 189         (yi #xA288)
 190         (cham #xAA00)
 191         (tai-viet #xAA80)
 192         (hangul #xAC00)
 193         (linear-b #x10000)
 194         (aegean-number #x10100)
 195         (ancient-greek-number #x10140)
 196         (ancient-symbol #x10190)
 197         (phaistos-disc #x101D0)
 198         (lycian #x10280)
 199         (carian #x102A0)
 200         (olt-italic #x10300)
 201         (ugaritic #x10380)
 202         (old-persian #x103A0)
 203         (deseret #x10400)
 204         (shavian #x10450)
 205         (osmanya #x10480)
 206         (cypriot-syllabary #x10800)
 207         (phoenician #x10900)
 208         (lydian #x10920)
 209         (kharoshthi #x10A00)
 210         (cuneiform #x12000)
 211         (cuneiform-numbers-and-punctuation #x12400)
 212         (byzantine-musical-symbol #x1D000)
 213         (musical-symbol #x1D100)
 214         (ancient-greek-musical-notation #x1D200)
 215         (tai-xuan-jing-symbol #x1D300)
 216         (counting-rod-numeral #x1D360)
 217         (mahjong-tile #x1F000)
 218         (domino-tile #x1F030)))
 219
 220 (defvar otf-script-alist)
 221
 222 (setq otf-script-alist
 223       '((arab . arabic)
 224         (armn . armenian)
 225         (bali . balinese)
 226         (beng . bengali)
 227         (bopo . bopomofo)
 228         (brai . braille)
 229         (bugi . buginese)
 230         (buhd . buhid)
 231         (byzm . byzantine-musical-symbol)
 232         (cans . canadian-aboriginal)
 233         (cher . cherokee)
 234         (copt . coptic)
 235         (xsux . cuneiform)
 236         (cyrl . cyrillic)
 237         (cprt . cypriot)
 238         (dsrt . deseret)
 239         (deva . devanagari)
 240         (ethi . ethiopic)
 241         (geor . georgian)
 242         (glag . glagolitic)
 243         (goth . gothic)
 244         (grek . greek)
 245         (gujr . gujarati)
 246         (guru . gurmukhi)
 247         (hani . han)
 248         (hang . hangul)
 249         (hano . hanunoo)
 250         (hebr . hebrew)
 251         (kana . kana)
 252         (knda . kannada)
 253         (khar . kharoshthi)
 254         (khmr . khmer)
 255         (lao\  . lao)
 256         (latn . latin)
 257         (limb . limbu)
 258         (linb . linear_b)
 259         (mlym . malayalam)
 260         (math . mathematical)
 261         (mong . mongolian)
 262         (musc . musical-symbol)
 263         (mymr . myanmar)
 264         (nko\  . nko)
 265         (ogam . ogham)
 266         (ital . old_italic)
 267         (xpeo . old_persian)
 268         (orya . oriya)
 269         (osma . osmanya)
 270         (phag . phags-pa)
 271         (phnx . phoenician)
 272         (runr . runic)
 273         (shaw . shavian)
 274         (sinh . sinhala)
 275         (sylo . syloti_nagri)
 276         (syrc . syriac)
 277         (tglg . tagalog)
 278         (tagb . tagbanwa)
 279         (taml . tamil)
 280         (tale . tai_le)
 281         (telu . telugu)
 282         (thaa . thaana)
 283         (thai . thai)
 284         (tibt . tibetan)
 285         (tfng . tifinagh)
 286         (ugar . ugaritic)
 287         (yi\ \   . yi)))
 288
 289 ;; Set standard fontname specification of characters in the default
 290 ;; fontset to find an appropriate font for each script/charset.  The
 291 ;; specification has the form ((SCRIPT FONT-SPEC ...) ...), where
 292 ;; FONT-SPEC is:
 293 ;;      a cons (FAMILY . REGISTRY),
 294 ;;      or a string FONT-NAME,
 295 ;;      or an object created by `font-spec'.
 296 ;;
 297 ;; FAMILY may be nil, in which case, the corresponding name of
 298 ;; default face is used.  If REGISTRY contains a character `-', the
 299 ;; string before that is embedded in `CHARSET_REGISTRY' field, and the
 300 ;; string after that is embedded in `CHARSET_ENCODING' field.  If it
 301 ;; does not contain `-', the whole string is embedded in
 302 ;; `CHARSET_REGISTRY' field, and a wild card character `*' is embedded
 303 ;; in `CHARSET_ENCODING' field.
 304 ;;
 305 ;; SCRIPT is a symbol that appears as an element of the char table
 306 ;; `char-script-table'.  SCRIPT may be a charset specifying the range
 307 ;; of characters.
 308
 309 (declare-function new-fontset "fontset.c" (name fontlist))
 310 (declare-function set-fontset-font "fontset.c"
 311                   (name target font-spec &optional frame add))
 312
 313 (eval-when-compile
 314
 315 ;; Build a data to initialize the default fontset at compile time to
 316 ;; avoid loading charsets that won't be necessary at runtime.
 317
 318 ;; The value is (CJK-REGISTRY-VECTOR TARGET-SPEC ...), where
 319 ;; CJK-REGISTRY-VECTOR is ["JISX0208.1983-0" "GB2312.1980-0" ...],
 320 ;; TARGET-SPEC is (TARGET . BITMASK) or (TARGET SPEC ...),
 321 ;; TARGET is CHAR or (FROM-CHAR . TO-CHAR),
 322 ;; BITMASK is a bitmask of indices to CJK-REGISTRY-VECTOR,
 323 ;; SPEC is a list of arguments to font-spec.
 324
 325 (defmacro build-default-fontset-data ()
 326   (let* (;;       CHARSET-REGISTRY  CHARSET            FROM-CODE TO-CODE
 327          (cjk '(("JISX0208.1983-0" japanese-jisx0208  #x2121    #x287E)
 328                 ("GB2312.1980-0"   chinese-gb2312     #x2121    #x297E)
 329                 ("BIG5-0"          big5               #xA140    #xA3FE)
 330                 ("CNS11643.1992-1" chinese-cns11643-1 #x2121    #x427E)
 331                 ("KSC5601.1987-0"  korean-ksc5601     #x2121    #x2C7E)))
 332          (scripts '((tibetan
 333                      (:registry "iso10646-1" :otf (tibt nil (ccmp blws abvs)))
 334                      (:family "mtib" :registry "iso10646-1")
 335                      (:registry "muletibetan-2"))
 336                     (ethiopic
 337                      (:registry "iso10646-1" :script ethiopic)
 338                      (:registry "ethiopic-unicode"))
 339                     (phonetic
 340                      (:registry "iso10646-1" :script phonetic)
 341                      (:registry "MuleIPA-1")
 342                      (:registry "iso10646-1"))))
 343          (cjk-table (make-char-table nil))
 344          (script-coverage
 345           #'(lambda (script)
 346               (let ((coverage))
 347                 (map-char-table
 348                  #'(lambda (range val)
 349                      (when (eq val script)
 350                        (if (consp range)
 351                            (setq range (cons (car range) (cdr range))))
 352                        (push range coverage)))
 353                  char-script-table)
 354                 coverage)))
 355          (data (list (vconcat (mapcar 'car cjk))))
 356          (i 0))
 357     (dolist (elt cjk)
 358       (let ((mask (lsh 1 i)))
 359         (map-charset-chars
 360          #'(lambda (range arg)
 361              (let ((from (car range)) (to (cdr range)))
 362                (if (< to #x110000)
 363                    (while (<= from to)
 364                      (or (memq (aref char-script-table from)
 365                                '(kana hangul han cjk-misc))
 366                          (aset cjk-table from
 367                                (logior (or (aref cjk-table from) 0) mask)))
 368                      (setq from (1+ from))))))
 369          (nth 1 elt) nil (nth 2 elt) (nth 3 elt)))
 370       (setq i (1+ i)))
 371     (map-char-table
 372      #'(lambda (range val)
 373          (if (consp range)
 374              (setq range (cons (car range) (cdr range))))
 375          (push (cons range val) data))
 376      cjk-table)
 377     (dolist (script scripts)
 378       (dolist (range (funcall script-coverage (car script)))
 379         (push (cons range (cdr script)) data)))
 380     `(quote ,(nreverse data))))
 381 )
 382
 383 (defun setup-default-fontset ()
 384   "Setup the default fontset."
 385   (new-fontset
 386    "fontset-default"
 387    `(;; for each script
 388      (latin (nil . "ISO8859-1")
 389             (nil . "ISO8859-2")
 390             (nil . "ISO8859-3")
 391             (nil . "ISO8859-4")
 392             (nil . "ISO8859-9")
 393             (nil . "ISO8859-10")
 394             (nil . "ISO8859-13")
 395             (nil . "ISO8859-14")
 396             (nil . "ISO8859-15")
 397             (nil . "ISO8859-16")
 398             (nil . "VISCII1.1-1")
 399             ,(font-spec :registry "iso10646-1" :script 'latin))
 400
 401      (thai  ,(font-spec :registry "iso10646-1" :otf '(thai nil nil (mark)))
 402             ,(font-spec :registry "iso10646-1" :script 'thai)
 403             (nil . "TIS620*")
 404             (nil . "ISO8859-11"))
 405
 406      (devanagari ,(font-spec :registry "iso10646-1" :otf '(deva nil (rphf)))
 407                  (nil . "iso10646.indian-1"))
 408      (bengali ,(font-spec :registry "iso10646-1" :otf '(beng nil (rphf))))
 409      (gurmukhi ,(font-spec :registry "iso10646-1" :otf '(guru nil (blwf))))
 410      (gujarati ,(font-spec :registry "iso10646-1" :otf '(gujr nil (rphf))))
 411      (oriya ,(font-spec :registry "iso10646-1" :otf '(orya nil (rphf))))
 412      (tamil ,(font-spec :registry "iso10646-1" :otf '(taml nil (akhn))))
 413      (telugu ,(font-spec :registry "iso10646-1" :otf '(telu nil (blwf))))
 414      (kannada ,(font-spec :registry "iso10646-1" :otf '(knda nil (rphf))))
 415      (sinhala ,(font-spec :registry "iso10646-1" :otf '(sinh nil (akhn))))
 416      (malayalam ,(font-spec :registry "iso10646-1" :otf '(mlym nil (akhn))))
 417
 418      (lao ,(font-spec :registry "iso10646-1" :otf '(lao\  nil nil (mark)))
 419           ,(font-spec :registry "iso10646-1" :script 'lao)
 420           (nil . "MuleLao-1"))
 421
 422      (tai-viet ("TaiViet" . "iso10646-1"))
 423
 424      (greek ,(font-spec :registry "iso10646-1" :script 'greek)
 425             (nil . "ISO8859-7"))
 426
 427      (cyrillic ,(font-spec :registry "iso10646-1" :script 'cyrillic)
 428                (nil . "ISO8859-5")
 429                (nil . "microsoft-cp1251")
 430                (nil . "koi8-r"))
 431
 432      (arabic ,(font-spec :registry "iso10646-1"
 433                          :otf '(arab nil (init medi fini liga)))
 434              (nil . "MuleArabic-0")
 435              (nil . "MuleArabic-1")
 436              (nil . "MuleArabic-2")
 437              (nil . "ISO8859-6"))
 438
 439      (hebrew ,(font-spec :registry "iso10646-1" :script 'hebrew)
 440              (nil . "ISO8859-8"))
 441
 442      (khmer ,(font-spec :registry "iso10646-1" :otf '(khmr nil (pres))))
 443
 444      (kana (nil . "JISX0208*")
 445            (nil . "GB2312.1980-0")
 446            (nil . "KSC5601.1987*")
 447            (nil . "JISX0201*")
 448            (nil . "JISX0213.2000-1")
 449            (nil . "JISX0213.2004-1")
 450            ,(font-spec :registry "iso10646-1" :script 'kana))
 451
 452      (bopomofo ,(font-spec :registry "iso10646-1" :script 'bopomofo)
 453                (nil . "sisheng_cwnn-0"))
 454
 455      (han (nil . "GB2312.1980-0")
 456           (nil . "JISX0208*")
 457           (nil . "JISX0212*")
 458           (nil . "big5*")
 459           (nil . "KSC5601.1987*")
 460           (nil . "CNS11643.1992-1")
 461           (nil . "CNS11643.1992-2")
 462           (nil . "CNS11643.1992-3")
 463           (nil . "CNS11643.1992-4")
 464           (nil . "CNS11643.1992-5")
 465           (nil . "CNS11643.1992-6")
 466           (nil . "CNS11643.1992-7")
 467           (nil . "gbk-0")
 468           (nil . "gb18030")
 469           (nil . "JISX0213.2000-1")
 470           (nil . "JISX0213.2000-2")
 471           (nil . "JISX0213.2004-1")
 472           ,(font-spec :registry "iso10646-1" :lang 'ja)
 473           ,(font-spec :registry "iso10646-1" :lang 'zh))
 474
 475      (cjk-misc (nil . "GB2312.1980-0")
 476                (nil . "JISX0208*")
 477                (nil . "JISX0212*")
 478                (nil . "big5*")
 479                (nil . "KSC5601.1987*")
 480                (nil . "CNS11643.1992-1")
 481                (nil . "CNS11643.1992-2")
 482                (nil . "CNS11643.1992-3")
 483                (nil . "CNS11643.1992-4")
 484                (nil . "CNS11643.1992-5")
 485                (nil . "CNS11643.1992-6")
 486                (nil . "CNS11643.1992-7")
 487                (nil . "gbk-0")
 488                (nil . "gb18030")
 489                (nil . "JISX0213.2000-1")
 490                (nil . "JISX0213.2000-2")
 491                ,(font-spec :registry "iso10646-1" :lang 'ja)
 492                ,(font-spec :registry "iso10646-1" :lang 'zh))
 493
 494      (hangul (nil . "KSC5601.1987-0")
 495              ,(font-spec :registry "iso10646-1" :lang 'ko))
 496
 497      ;; for each charset
 498      (ascii (nil . "ISO8859-1"))
 499      (arabic-digit ("*" . "MuleArabic-0"))
 500      (arabic-1-column ("*" . "MuleArabic-1"))
 501      (arabic-2-column ("*" . "MuleArabic-2"))
 502      (indian-is13194 (nil . "is13194-devanagari"))
 503      (indian-1-column ("*" . "muleindian-2"))
 504      ;; Indian CDAC
 505      (devanagari-cdac (nil . "Devanagari-CDAC"))
 506      (sanskrit-cdac (nil . "Sanskrit-CDAC"))
 507      (bengali-cdac (nil . "Bengali-CDAC"))
 508      (assamese-cdac (nil . "Assamese-CDAC"))
 509      (punjabi-cdac (nil . "Punjabi-CDAC"))
 510      (gujarati-cdac (nil . "Gujarati-CDAC"))
 511      (oriya-cdac (nil . "Oriya-CDAC"))
 512      (tamil-cdac (nil . "Tamil-CDAC"))
 513      (telugu-cdac (nil . "Telugu-CDAC"))
 514      (kannada-cdac (nil . "Kannada-CDAC"))
 515      (malayalam-cdac (nil . "Malayalam-CDAC"))
 516      ;; Indian AKRUTI
 517      (devanagari-akruti (nil . "Devanagari-Akruti"))
 518      (bengali-akruti (nil . "Bengali-Akruti"))
 519      (punjabi-akruti (nil . "Punjabi-Akruti"))
 520      (gujarati-akruti (nil . "Gujarati-Akruti"))
 521      (oriya-akruti (nil . "Oriya-Akruti"))
 522      (tamil-akruti (nil . "Tamil-Akruti"))
 523      (telugu-akruti (nil . "Telugu-Akruti"))
 524      (kannada-akruti (nil . "Kannada-Akruti"))
 525      (malayalam-akruti (nil . "Malayalam-Akruti"))
 526
 527      ;; Fallback fonts
 528      (nil (nil . "gb2312.1980")
 529           (nil . "gbk-0")
 530           (nil . "gb18030")
 531           (nil . "jisx0208")
 532           (nil . "ksc5601.1987")
 533           (nil . "CNS11643.1992-1")
 534           (nil . "CNS11643.1992-2")
 535           (nil . "CNS11643.1992-3")
 536           (nil . "CNS11643.1992-4")
 537           (nil . "CNS11643.1992-5")
 538           (nil . "CNS11643.1992-6")
 539           (nil . "CNS11643.1992-7")
 540           (nil . "big5")
 541           (nil . "jisx0213.2000-1")
 542           (nil . "jisx0213.2004-1")
 543           (nil . "jisx0212"))
 544      ))
 545
 546   ;; For simple scripts
 547   (dolist (script '(phonetic
 548                     armenian
 549                     syriac
 550                     thaana
 551                     myanmar
 552                     georgian
 553                     cherokee
 554                     canadian-aboriginal
 555                     ogham
 556                     runic
 557                     symbol
 558                     braille
 559                     yi
 560                     aegean-number
 561                     ancient-greek-number
 562                     ancient-symbol
 563                     phaistos-disc
 564                     lycian
 565                     carian
 566                     olt-italic
 567                     ugaritic
 568                     old-persian
 569                     deseret
 570                     shavian
 571                     osmanya
 572                     cypriot-syllabary
 573                     phoenician
 574                     lydian
 575                     kharoshthi
 576                     cuneiform
 577                     cuneiform-numbers-and-punctuation
 578                     byzantine-musical-symbol
 579                     musical-symbol
 580                     ancient-greek-musical-notation
 581                     tai-xuan-jing-symbol
 582                     counting-rod-numeral
 583                     mahjong-tile
 584                     domino-tile))
 585     (set-fontset-font "fontset-default"
 586                       script (font-spec :registry "iso10646-1" :script script)
 587                       nil 'append))
 588
 589   ;; Special settings for `MATHEMATICAL (U+1D400..U+1D7FF)'.
 590   (dolist (math-subgroup '((#x1D400 #x1D433 mathematical-bold)
 591                            (#x1D434 #x1D467 mathematical-italic)
 592                            (#x1D468 #x1D49B mathematical-bold-italic)
 593                            (#x1D49C #x1D4CF mathematical-script)
 594                            (#x1D4D0 #x1D503 mathematical-bold-script)
 595                            (#x1D504 #x1D537 mathematical-fraktur)
 596                            (#x1D538 #x1D56B mathematical-double-struck)
 597                            (#x1D56C #x1D59F mathematical-bold-fraktur)
 598                            (#x1D5A0 #x1D5D3 mathematical-sans-serif)
 599                            (#x1D5D4 #x1D607 mathematical-sans-serif-bold)
 600                            (#x1D608 #x1D63B mathematical-sans-serif-italic)
 601                            (#x1D63C #x1D66F mathematical-sans-serif-bold-italic)
 602                            (#x1D670 #x1D6A3 mathematical-monospace)
 603                            (#x1D6A4 #x1D6A5 mathematical-italic)
 604                            (#x1D6A8 #x1D6E1 mathematical-bold)
 605                            (#x1D6E2 #x1D71B mathematical-italic)
 606                            (#x1D71C #x1D755 mathematical-bold-italic)
 607                            (#x1D756 #x1D78F mathematical-sans-serif-bold)
 608                            (#x1D790 #x1D7C9 mathematical-sans-serif-bold-italic)
 609                            (#x1D7CA #x1D7D7 mathematical-bold)
 610                            (#x1D7D8 #x1D7E1 mathematical-double-struck)
 611                            (#x1D7E2 #x1D7EB mathematical-sans-serif)
 612                            (#x1D7EC #x1D7F5 mathematical-sans-serif-bold)
 613                            (#x1D7F6 #x1D7FF mathematical-monospace)))
 614     (let ((slot (assq (nth 2 math-subgroup) script-representative-chars)))
 615       (if slot
 616           (if (vectorp (cdr slot))
 617               (setcdr slot (vconcat (cdr slot) (vector (car math-subgroup))))
 618             (setcdr slot (vector (cadr slot) (car math-subgroup))))
 619         (setq slot (list (nth 2 math-subgroup) (car math-subgroup)))
 620         (nconc script-representative-chars (list slot))))
 621     (set-fontset-font
 622      "fontset-default"
 623      (cons (car math-subgroup) (nth 1 math-subgroup))
 624      (font-spec :registry "iso10646-1" :script (nth 2 math-subgroup))))
 625
 626   ;; Append CJK fonts for characters other than han, kana, cjk-misc.
 627   ;; Append fonts for scripts whose name is also a charset name.
 628   (let* ((data (build-default-fontset-data))
 629          (registries (car data)))
 630     (dolist (target-spec (cdr data))
 631       (let ((target (car target-spec))
 632             (spec (cdr target-spec)))
 633         (if (integerp spec)
 634             (dotimes (i (length registries))
 635               (if (> (logand spec (lsh 1 i)) 0)
 636                   (set-fontset-font "fontset-default" target
 637                                     (cons nil (aref registries i))
 638                                     nil 'append)))
 639         (dolist (args spec)
 640           (set-fontset-font "fontset-default" target
 641                             (apply 'font-spec args) nil 'append))))))
 642
 643   ;; Append Unicode fonts.
 644   ;; This may find fonts with more variants (bold, italic) but which
 645   ;; don't cover many characters.
 646   (set-fontset-font "fontset-default" nil
 647                     '(nil . "iso10646-1") nil 'prepend)
 648   ;; These may find fonts that cover many characters but with fewer
 649   ;; variants.
 650   (set-fontset-font "fontset-default" nil
 651                     '("gnu-unifont" . "iso10646-1") nil 'prepend)
 652   (set-fontset-font "fontset-default" nil
 653                     '("mutt-clearlyu" . "iso10646-1") nil 'prepend)
 654   (set-fontset-font "fontset-default" '(#x20000 . #x2FFFF)
 655                     '(nil . "unicode-sip"))
 656
 657   (set-fontset-font "fontset-default" '(#xE000 . #xF8FF)
 658                     '(nil . "iso10646-1"))
 659   ;; Don't try the fallback fonts even if no suitable font was found
 660   ;; by the above font-spec.
 661   (set-fontset-font "fontset-default" '(#xE000 . #xF8FF) nil nil 'append))
 662
 663 (defun create-default-fontset ()
 664   "Create the default fontset.
 665 Internal use only.  Should be called at startup time."
 666   (condition-case err
 667       (setup-default-fontset)
 668     (error (display-warning
 669             'initialization
 670             (format "Creation of the default fontsets failed: %s" err)
 671             :error))))
 672
 673 ;; These are the registered registries/encodings from
 674 ;; ftp://ftp.x.org/pub/DOCS/registry 2001/06/01
 675
 676 ;; Name                                            Reference
 677 ;; ----                                            ---------
 678 ;; "DEC"                                           [27]
 679 ;;         registry prefix
 680 ;; "DEC.CNS11643.1986-2"                           [53]
 681 ;;         CNS11643 2-plane using the encoding
 682 ;;         suggested in that standard
 683 ;; "DEC.DTSCS.1990-2"                              [54]
 684 ;;         DEC Taiwan Supplemental Character Set
 685 ;; "fujitsu.u90x01.1991-0"                         [87]
 686 ;; "fujitsu.u90x03.1991-0"                         [87]
 687 ;; "GB2312.1980-0"                                 [39],[12]
 688 ;;         China (PRC) Hanzi, GL encoding
 689 ;; "GB2312.1980-1"                                 [39]
 690 ;;         (deprecated)
 691 ;;         China (PRC) Hanzi, GR encoding
 692 ;; "HP-Arabic8"                                    [36]
 693 ;;         HPARABIC8 8-bit character set
 694 ;; "HP-East8"                                      [36]
 695 ;;         HPEAST8 8-bit character set
 696 ;; "HP-Greek8"                                     [36]
 697 ;;         HPGREEK8 8-bit character set
 698 ;; "HP-Hebrew8"                                    [36]
 699 ;;         HPHEBREW8 8-bit character set
 700 ;; "HP-Japanese15"                                 [36]
 701 ;;         HPJAPAN15 15-bit characer set,
 702 ;;         modified from industry defacto
 703 ;;         standard Shift-JIS
 704 ;; "HP-Kana8"                                      [36]
 705 ;;         HPKANA8 8-bit character set
 706 ;; "HP-Korean15"                                   [36]
 707 ;;         HPKOREAN15 15-bit character set
 708 ;; "HP-Roman8"                                     [36]
 709 ;;         HPROMAN8 8-bit character set
 710 ;; "HP-SChinese15"                                 [36]
 711 ;;         HPSCHINA15 15-bit character set for
 712 ;;         support of Simplified Chinese
 713 ;; "HP-TChinese15"                                 [36]
 714 ;;         HPTCHINA15 15-bit character set for
 715 ;;         support of Traditional Chinese
 716 ;; "HP-Turkish8"                                   [36]
 717 ;;         HPTURKISH8 8-bit character set
 718 ;; "IPSYS"                                         [59]
 719 ;;         registry prefix
 720 ;; "IPSYS.IE-1"                                    [59]
 721 ;; "ISO2022"<REG>"-"<ENC>                          [44]
 722 ;; "ISO646.1991-IRV"                               [107]
 723 ;;         ISO 646 International Reference Version
 724 ;; "ISO8859-1"                                     [15],[12]
 725 ;;         ISO Latin alphabet No. 1
 726 ;; "ISO8859-2"                                     [15],[12]
 727 ;;         ISO Latin alphabet No. 2
 728 ;; "ISO8859-3"                                     [15],[12]
 729 ;;         ISO Latin alphabet No. 3
 730 ;; "ISO8859-4"                                     [15],[12]
 731 ;;         ISO Latin alphabet No. 4
 732 ;; "ISO8859-5"                                     [15],[12]
 733 ;;         ISO Latin/Cyrillic alphabet
 734 ;; "ISO8859-6"                                     [15],[12]
 735 ;;         ISO Latin/Arabic alphabet
 736 ;; "ISO8859-7"                                     [15],[12]
 737 ;;         ISO Latin/Greek alphabet
 738 ;; "ISO8859-8"                                     [15],[12]
 739 ;;         ISO Latin/Hebrew alphabet
 740 ;; "ISO8859-9"                                     [15],[12]
 741 ;;         ISO Latin alphabet No. 5
 742 ;; "ISO8859-10"                                    [15],[12]
 743 ;;         ISO Latin alphabet No. 6
 744 ;; "ISO8859-13"                                    [15],[12]
 745 ;;         ISO Latin alphabet No. 7
 746 ;; "ISO8859-14"                                    [15],[12]
 747 ;;         ISO Latin alphabet No. 8
 748 ;; "ISO8859-15"                                    [15],[12]
 749 ;;         ISO Latin alphabet No. 9
 750 ;; "FCD8859-15"                                    [7]
 751 ;;         (deprecated)
 752 ;;         ISO Latin alphabet No. 9, Final Committee Draft
 753 ;; "ISO10646-1"                                    [133]
 754 ;;         Unicode Universal Multiple-Octet Coded Character Set
 755 ;; "ISO10646-MES"                                  [133]
 756 ;;         (deprecated)
 757 ;;         Unicode Minimum European Subset
 758 ;; "JISX0201.1976-0"                               [38],[12]
 759 ;;         8-Bit Alphanumeric-Katakana Code
 760 ;; "JISX0208.1983-0"                               [40],[12]
 761 ;;         Japanese Graphic Character Set,
 762 ;;         GL encoding
 763 ;; "JISX0208.1990-0"                               [71]
 764 ;;         Japanese Graphic Character Set,
 765 ;;         GL encoding
 766 ;; "JISX0208.1983-1"                               [40]
 767 ;;         (deprecated)
 768 ;;         Japanese Graphic Character Set,
 769 ;;         GR encoding
 770 ;; "JISX0212.1990-0"                               [72]
 771 ;;         Supplementary Japanese Graphic Character Set,
 772 ;;         GL encoding
 773 ;; "KOI8-R"                                        [119]
 774 ;;         Cyrillic alphabet
 775 ;; "KSC5601.1987-0"                                [41],[12]
 776 ;;         Korean Graphic Character Set,
 777 ;;         GL encoding
 778 ;; "KSC5601.1987-1"                                [41]
 779 ;;         (deprecated)
 780 ;;         Korean Graphic Character Set,
 781 ;;         GR encoding
 782 ;; "omron_CNS11643-0"                              [45]
 783 ;; "omron_CNS11643-1"                              [45]
 784 ;; "omron_BIG5-0"                                  [45]
 785 ;; "omron_BIG5-1"                                  [45]
 786 ;; "wn.tamil.1993"                                 [103]
 787
 788 (defun set-font-encoding (pattern charset)
 789   "Set arguments in `font-encoding-alist' (which see)."
 790   (let ((slot (assoc pattern font-encoding-alist)))
 791     (if slot
 792         (setcdr slot charset)
 793       (setq font-encoding-alist
 794             (cons (cons pattern charset) font-encoding-alist)))))
 795
 796 (defvar x-pixel-size-width-font-regexp)
 797 (defvar vertical-centering-font-regexp)
 798
 799 ;; Setting for suppressing XLoadQueryFont on big fonts.
 800 (setq x-pixel-size-width-font-regexp
 801       (purecopy "gb2312\\|gbk\\|gb18030\\|jisx0208\\|ksc5601\\|cns11643\\|big5"))
 802
 803 ;; These fonts require vertical centering.
 804 (setq vertical-centering-font-regexp
 805       (purecopy "gb2312\\|gbk\\|gb18030\\|jisx0208\\|jisx0212\\|ksc5601\\|cns11643\\|big5"))
 806
 807 ;; CDAC fonts are actually smaller than their design sizes.
 808 (setq face-font-rescale-alist
 809       (list (cons (purecopy "-cdac$")  1.3)))
 810
 811 (defvar x-font-name-charset-alist nil
 812   "This variable has no meaning now.  Just kept for backward compatibility.")
 813
 814 ;;; XLFD (X Logical Font Description) format handler.
 815
 816 ;; Define XLFD's field index numbers.           ; field name
 817 (defconst xlfd-regexp-family-subnum 0)          ; FOUNDRY and FAMILY
 818 (defconst xlfd-regexp-weight-subnum 1)          ; WEIGHT_NAME
 819 (defconst xlfd-regexp-slant-subnum 2)           ; SLANT
 820 (defconst xlfd-regexp-swidth-subnum 3)          ; SETWIDTH_NAME
 821 (defconst xlfd-regexp-adstyle-subnum 4)         ; ADD_STYLE_NAME
 822 (defconst xlfd-regexp-pixelsize-subnum 5)       ; PIXEL_SIZE
 823 (defconst xlfd-regexp-pointsize-subnum 6)       ; POINT_SIZE
 824 (defconst xlfd-regexp-resx-subnum 7)            ; RESOLUTION_X
 825 (defconst xlfd-regexp-resy-subnum 8)            ; RESOLUTION_Y
 826 (defconst xlfd-regexp-spacing-subnum 8)         ; SPACING
 827 (defconst xlfd-regexp-avgwidth-subnum 10)       ; AVERAGE_WIDTH
 828 (defconst xlfd-regexp-registry-subnum 11)       ; REGISTRY and ENCODING
 829
 830 ;; Regular expression matching against a fontname which conforms to
 831 ;; XLFD (X Logical Font Description).  All fields in XLFD should be
 832 ;; not be omitted (but can be a wild card) to be matched.
 833 (defconst xlfd-tight-regexp
 834   "^\
 835 -\\([^-]*-[^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)\
 836 -\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)\
 837 -\\([^-]*\\)-\\([^-]*\\)-\\([^-]*-[^-]*\\)$")
 838
 839 ;; Regular expression matching against a fontname which conforms to
 840 ;; XLFD (X Logical Font Description).  All fields in XLFD from FOUNDRY
 841 ;; to ADSTYLE, REGISTRY, and ENCODING should be not be omitted (but
 842 ;; can be a wild card) to be matched.
 843 (defconst xlfd-style-regexp
 844   "^\
 845 -\\([^-]*-[^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-.*\
 846 -\\([^-]*-[^-]*\\)$")
 847
 848 ;; List of field numbers of XLFD whose values are numeric.
 849 (defconst xlfd-regexp-numeric-subnums
 850   (list xlfd-regexp-pixelsize-subnum    ;5
 851         xlfd-regexp-pointsize-subnum    ;6
 852         xlfd-regexp-resx-subnum         ;7
 853         xlfd-regexp-resy-subnum         ;8
 854         xlfd-regexp-avgwidth-subnum     ;10
 855         ))
 856
 857 (defun x-decompose-font-name (pattern)
 858   "Decompose PATTERN into XLFD fields and return a vector of the fields.
 859 The length of the vector is 12.
 860 The FOUNDRY and FAMILY fields are concatinated and stored in the first
 861 element of the vector.
 862 The REGISTRY and ENCODING fields are concatinated and stored in the last
 863 element of the vector.
 864
 865 Return nil if PATTERN doesn't conform to XLFD."
 866   (if (string-match xlfd-tight-regexp pattern)
 867       (let ((xlfd-fields (make-vector 12 nil)))
 868         (dotimes (i 12)
 869           (aset xlfd-fields i (match-string (1+ i) pattern)))
 870         (dotimes (i 12)
 871           (if (string-match "^[*-]+$" (aref xlfd-fields i))
 872               (aset xlfd-fields i nil)))
 873         xlfd-fields)))
 874
 875 (defun x-compose-font-name (fields &optional reduce)
 876   "Compose X fontname from FIELDS.
 877 FIELDS is a vector of XLFD fields, of length 12.
 878 If a field is nil, wild-card letter `*' is embedded.
 879 Optional argument REDUCE exists just for backward compatibility,
 880 and is always ignored."
 881   (concat "-" (mapconcat (lambda (x) (or x "*")) fields "-")))
 882
 883
 884 (defun x-must-resolve-font-name (xlfd-fields)
 885   "Like `x-resolve-font-name', but always return a font name.
 886 XLFD-FIELDS is a vector of XLFD (X Logical Font Description) fields.
 887 If no font matching XLFD-FIELDS is available, successively replace
 888 parts of the font name pattern with \"*\" until some font is found.
 889 Value is name of that font."
 890   (let ((ascii-font nil) (index 0))
 891     (while (and (null ascii-font) (<= index xlfd-regexp-registry-subnum))
 892       (let ((pattern (x-compose-font-name xlfd-fields)))
 893         (condition-case nil
 894             (setq ascii-font (x-resolve-font-name pattern))
 895           (error
 896            (message "Warning: no fonts matching `%s' available" pattern)
 897            (aset xlfd-fields index "*")
 898            (setq index (1+ index))))))
 899     (unless ascii-font
 900       (error "No fonts found"))
 901     ascii-font))
 902
 903
 904 (defun x-complement-fontset-spec (default-spec fontlist)
 905   "Complement elements of FONTLIST based on DEFAULT-SPEC.
 906 DEFAULT-SPEC is a font-spec object providing default font properties.
 907 FONTLIST is an alist of script names vs the corresponding font names.
 908
 909 The font names are parsed and unspecified font properties are
 910 given from DEFAULT-SPEC."
 911   (let ((prop-list '(:foundry :family :weight :slant :width :adstyle :size)))
 912     (dolist (elt fontlist)
 913       (let ((spec (font-spec :name (cadr elt))))
 914         (dolist (prop prop-list)
 915           (let ((val (font-get spec prop)))
 916             (or val
 917                 (font-put spec prop (font-get default-spec prop)))))
 918         (setcar (cdr elt) spec)))
 919     fontlist))
 920
 921 (defun fontset-name-p (fontset)
 922   "Return non-nil if FONTSET is valid as fontset name.
 923 A valid fontset name should conform to XLFD (X Logical Font Description)
 924 with \"fontset\" in `<CHARSET_REGISTRY>' field."
 925   (and (string-match xlfd-tight-regexp fontset)
 926        (string= (match-string (1+ xlfd-regexp-registry-subnum) fontset)
 927                 "fontset")))
 928
 929 (declare-function fontset-list "fontset.c" ())
 930
 931 (defun generate-fontset-menu ()
 932   "Return list to be appended to `x-fixed-font-alist'.
 933 Done when `mouse-set-font' is called."
 934   (let (l)
 935     (dolist (fontset (fontset-list))
 936       (or (string-match "fontset-default$" fontset)
 937           (string-match "fontset-auto[0-9]+$" fontset)
 938           (push (list (fontset-plain-name fontset) fontset) l)))
 939     (cons "Fontset"
 940           (sort l #'(lambda (x y) (string< (car x) (car y)))))))
 941
 942 (declare-function query-fontset "fontset.c" (pattern &optional regexpp))
 943
 944 (defun fontset-plain-name (fontset)
 945   "Return a plain and descriptive name of FONTSET."
 946   (if (not (setq fontset (query-fontset fontset)))
 947       (error "Invalid fontset: %s" fontset))
 948   (let ((xlfd-fields (x-decompose-font-name fontset)))
 949     (if xlfd-fields
 950         (let ((family (aref xlfd-fields xlfd-regexp-family-subnum))
 951               (weight (aref xlfd-fields xlfd-regexp-weight-subnum))
 952               (slant  (aref xlfd-fields xlfd-regexp-slant-subnum))
 953               (swidth (aref xlfd-fields xlfd-regexp-swidth-subnum))
 954               (size   (aref xlfd-fields xlfd-regexp-pixelsize-subnum))
 955               (nickname (aref xlfd-fields xlfd-regexp-registry-subnum))
 956               name)
 957           (if (not (string-match "^fontset-\\(.*\\)$" nickname))
 958               (setq nickname family)
 959             (setq nickname (match-string 1 nickname)))
 960           (if (and size (> (string-to-number size) 0))
 961               (setq name (format "%s: %s-dot" nickname size))
 962             (setq name nickname))
 963           (and weight
 964                (cond ((string-match "^medium$" weight)
 965                       (setq name (concat name " " "medium")))
 966                      ((string-match "^bold$\\|^demibold$" weight)
 967                       (setq name (concat name " " weight)))))
 968           (and slant
 969                (cond ((string-match "^i$" slant)
 970                       (setq name (concat name " " "italic")))
 971                      ((string-match "^o$" slant)
 972                       (setq name (concat name " " "slant")))
 973                      ((string-match "^ri$" slant)
 974                       (setq name (concat name " " "reverse italic")))
 975                      ((string-match "^ro$" slant)
 976                       (setq name (concat name " " "reverse slant")))))
 977           name)
 978       fontset)))
 979
 980 (defvar charset-script-alist
 981   '((ascii . latin)
 982     (latin-iso8859-1 . latin)
 983     (latin-iso8859-2 . latin)
 984     (latin-iso8859-3 . latin)
 985     (latin-iso8859-4 . latin)
 986     (latin-iso8859-9 . latin)
 987     (latin-iso8859-10 . latin)
 988     (latin-iso8859-13 . latin)
 989     (latin-iso8859-14 . latin)
 990     (latin-iso8859-15 . latin)
 991     (latin-iso8859-16 . latin)
 992     (latin-jisx0201 . latin)
 993     (thai-tis620 . thai)
 994     (cyrillic-iso8859-5 . cyrillic)
 995     (arabic-iso8859-6 . arabic)
 996     (greek-iso8859-7 . latin)
 997     (hebrew-iso8859-8 . latin)
 998     (katakana-jisx0201 . kana)
 999     (chinese-gb2312 . han)
1000     (chinese-gbk . han)
1001     (gb18030-2-byte . han)
1002     (gb18030-4-byte-bmp . han)
1003     (gb18030-4-byte-ext-1 . han)
1004     (gb18030-4-byte-ext-2 . han)
1005     (gb18030-4-byte-smp . han)
1006     (chinese-big5-1 . han)
1007     (chinese-big5-2 . han)
1008     (chinese-cns11643-1 . han)
1009     (chinese-cns11643-2 . han)
1010     (chinese-cns11643-3 . han)
1011     (chinese-cns11643-4 . han)
1012     (chinese-cns11643-5 . han)
1013     (chinese-cns11643-6 . han)
1014     (chinese-cns11643-7 . han)
1015     (japanese-jisx0208 . han)
1016     (japanese-jisx0208-1978 . han)
1017     (japanese-jisx0212 . han)
1018     (japanese-jisx0213-1 . han)
1019     (japanese-jisx0213-2 . han)
1020     (korean-ksc5601 . hangul)
1021     (chinese-sisheng . bopomofo)
1022     (vietnamese-viscii-lower . latin)
1023     (vietnamese-viscii-upper . latin)
1024     (arabic-digit . arabic)
1025     (arabic-1-column . arabic)
1026     (arabic-2-column . arabic)
1027     (indian-is13194 . devanagari)
1028     (indian-glyph . devanagari)
1029     (indian-1-column . devanagari)
1030     (indian-2-column . devanagari)
1031     (tibetan-1-column . tibetan))
1032   "Alist of charsets vs the corresponding most appropriate scripts.
1033
1034 This alist is used by the function `create-fontset-from-fontset-spec'
1035 to map charsets to scripts.")
1036
1037 (defun create-fontset-from-fontset-spec (fontset-spec
1038                                          &optional style-variant noerror)
1039   "Create a fontset from fontset specification string FONTSET-SPEC.
1040 FONTSET-SPEC is a string of the format:
1041         FONTSET-NAME,SCRIPT-NAME0:FONT-NAME0,SCRIPT-NAME1:FONT-NAME1, ...
1042 Any number of SPACE, TAB, and NEWLINE can be put before and after commas.
1043
1044 When a frame uses the fontset as the `font' parameter, the frame's
1045 default font name is derived from FONTSET-NAME by substituting
1046 \"iso8859-1\" for the tail part \"fontset-XXX\".  But, if SCRIPT-NAMEn
1047 is \"ascii\", use the corresponding FONT-NAMEn as the default font
1048 name.
1049
1050 Optional 2nd and 3rd arguments exist just for backward compatibility,
1051 and are ignored.
1052
1053 It returns a name of the created fontset.
1054
1055 For backward compatibility, SCRIPT-NAME may be a charset name, in
1056 which case, the corresponding script is decided by the variable
1057 `charset-script-alist' (which see)."
1058   (or (string-match "^[^,]+" fontset-spec)
1059       (error "Invalid fontset spec: %s" fontset-spec))
1060   (let ((idx (match-end 0))
1061         (name (match-string 0 fontset-spec))
1062         default-spec target script fontlist)
1063     (or (string-match xlfd-tight-regexp name)
1064         (error "Fontset name \"%s\" not conforming to XLFD" name))
1065     (setq default-spec (font-spec :name name))
1066     ;; At first, extract pairs of charset and fontname from FONTSET-SPEC.
1067     (while (string-match "[, \t\n]*\\([^:]+\\):[ \t]*\\([^,]+\\)"
1068                          fontset-spec idx)
1069       (setq idx (match-end 0))
1070       (setq target (intern (match-string 1 fontset-spec)))
1071       (cond ((or (eq target 'ascii)
1072                  (memq target (char-table-extra-slot char-script-table 0)))
1073              (push (list target (match-string 2 fontset-spec)) fontlist))
1074             ((setq script (cdr (assq target charset-script-alist)))
1075              (push (list script (match-string 2 fontset-spec)) fontlist))
1076             ((charsetp target)
1077              (push (list target (match-string 2 fontset-spec)) fontlist))))
1078
1079     ;; Complement FONTLIST.
1080     (setq fontlist (x-complement-fontset-spec default-spec fontlist))
1081
1082     ;; Create a fontset.
1083     (new-fontset name (nreverse fontlist))))
1084
1085 (defun create-fontset-from-ascii-font (font &optional resolved-font
1086                                             fontset-name)
1087   "Create a fontset from an ASCII font FONT.
1088
1089 Optional 2nd arg RESOLVED-FONT is a resolved name of FONT.
1090 If omitted, `x-resolve-font-name' is called to get the resolved name.
1091 At this time, if FONT is not available, an error is signaled.
1092
1093 Optional 3rd arg FONTSET-NAME is a string to be used in
1094 `<CHARSET_ENCODING>' fields of a new fontset name.  If it is omitted,
1095 an appropriate name is generated automatically.
1096
1097 It returns a name of the created fontset."
1098   (setq font (downcase font))
1099   (setq resolved-font
1100         (downcase (or resolved-font (x-resolve-font-name font))))
1101   (let ((xlfd (x-decompose-font-name resolved-font))
1102         fontset)
1103     (if fontset-name
1104         (setq fontset-name (downcase fontset-name))
1105       (if (query-fontset "fontset-startup")
1106           (setq fontset-name
1107                 (subst-char-in-string
1108                  ?- ?_ (aref xlfd xlfd-regexp-registry-subnum) t))
1109         (setq fontset-name "startup")))
1110     (aset xlfd xlfd-regexp-registry-subnum
1111           (format "fontset-%s" fontset-name))
1112     (setq fontset (x-compose-font-name xlfd))
1113     (or (query-fontset fontset)
1114         (create-fontset-from-fontset-spec (concat fontset ", ascii:" font)))))
1115
1116 \f
1117 ;; Create standard fontset from 16 dots fonts which are the most widely
1118 ;; installed fonts.  Fonts for Chinese-GB, Korean, and Chinese-CNS are
1119 ;; specified here because FAMILY of those fonts are not "fixed" in
1120 ;; many cases.
1121 (defvar standard-fontset-spec
1122   (purecopy "-*-fixed-medium-r-normal-*-16-*-*-*-*-*-fontset-standard")
1123   "String of fontset spec of the standard fontset.
1124 You have the biggest chance to display international characters
1125 with correct glyphs by using the standard fontset.
1126 See the documentation of `create-fontset-from-fontset-spec' for the format.")
1127
1128
1129 ;; Create fontsets from X resources of the name `fontset-N (class
1130 ;; Fontset-N)' where N is integer 0, 1, ...
1131 ;; The values of the resources the string of the same format as
1132 ;; `standard-fontset-spec'.
1133
1134 (declare-function x-get-resource "frame.c"
1135                   (attribute class &optional component subclass))
1136
1137 (defun create-fontset-from-x-resource ()
1138   (let ((idx 0)
1139         fontset-spec)
1140     (while (setq fontset-spec (x-get-resource (format "fontset-%d" idx)
1141                                               (format "Fontset-%d" idx)))
1142       (condition-case nil
1143           (create-fontset-from-fontset-spec fontset-spec t)
1144         (error (display-warning
1145                 'initialization
1146                 (format "Fontset-%d: invalid specification in X resource" idx)
1147                 :warning)))
1148       (setq idx (1+ idx)))))
1149
1150 ;;
1151 (provide 'fontset)
1152
1153 ;; arch-tag: bb53e629-0234-403c-950e-551e61554849
1154 ;;; fontset.el ends here