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  Free Software Foundation, Inc.
   5 ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
   6 ;;   2005, 2006, 2007, 2008, 2009
   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                      (aset cjk-table from
 365                            (logior (or (aref cjk-table from) 0) mask))
 366                      (setq from (1+ from))))))
 367          (nth 1 elt) nil (nth 2 elt) (nth 3 elt)))
 368       (setq i (1+ i)))
 369     (map-char-table
 370      #'(lambda (range val)
 371          (if (consp range)
 372              (setq range (cons (car range) (cdr range))))
 373          (push (cons range val) data))
 374      cjk-table)
 375     (dolist (script scripts)
 376       (dolist (range (funcall script-coverage (car script)))
 377         (push (cons range (cdr script)) data)))
 378     `(quote ,(nreverse data))))
 379 )
 380
 381 (defun setup-default-fontset ()
 382   "Setup the default fontset."
 383   (new-fontset
 384    "fontset-default"
 385    `(;; for each script
 386      (latin (nil . "ISO8859-1")
 387             (nil . "ISO8859-2")
 388             (nil . "ISO8859-3")
 389             (nil . "ISO8859-4")
 390             (nil . "ISO8859-9")
 391             (nil . "ISO8859-10")
 392             (nil . "ISO8859-13")
 393             (nil . "ISO8859-14")
 394             (nil . "ISO8859-15")
 395             (nil . "ISO8859-16")
 396             (nil . "VISCII1.1-1")
 397             ,(font-spec :registry "iso10646-1" :script 'latin))
 398
 399      (thai  ,(font-spec :registry "iso10646-1" :otf '(thai nil nil (mark)))
 400             ,(font-spec :registry "iso10646-1" :script 'thai)
 401             (nil . "TIS620*")
 402             (nil . "ISO8859-11"))
 403
 404      (devanagari ,(font-spec :registry "iso10646-1" :otf '(deva nil (rphf)))
 405                  (nil . "iso10646.indian-1"))
 406      (bengali ,(font-spec :registry "iso10646-1" :otf '(beng nil (rphf))))
 407      (gurmukhi ,(font-spec :registry "iso10646-1" :otf '(guru nil (blwf))))
 408      (gujarati ,(font-spec :registry "iso10646-1" :otf '(gujr nil (rphf))))
 409      (oriya ,(font-spec :registry "iso10646-1" :otf '(orya nil (rphf))))
 410      (tamil ,(font-spec :registry "iso10646-1" :otf '(taml nil (akhn))))
 411      (telugu ,(font-spec :registry "iso10646-1" :otf '(telu nil (blwf))))
 412      (kannada ,(font-spec :registry "iso10646-1" :otf '(knda nil (rphf))))
 413      (sinhala ,(font-spec :registry "iso10646-1" :otf '(sinh nil (akhn))))
 414      (malayalam ,(font-spec :registry "iso10646-1" :otf '(mlym nil (akhn))))
 415
 416      (lao ,(font-spec :registry "iso10646-1" :otf '(lao\  nil nil (mark)))
 417           ,(font-spec :registry "iso10646-1" :script 'lao)
 418           (nil . "MuleLao-1"))
 419
 420      (tai-viet ("TaiViet" . "iso10646-1"))
 421
 422      (greek ,(font-spec :registry "iso10646-1" :script 'greek)
 423             (nil . "ISO8859-7"))
 424
 425      (cyrillic ,(font-spec :registry "iso10646-1" :script 'cyrillic)
 426                (nil . "ISO8859-5")
 427                (nil . "microsoft-cp1251")
 428                (nil . "koi8-r"))
 429
 430      (arabic ,(font-spec :registry "iso10646-1"
 431                          :otf '(arab nil (init medi fini liga)))
 432              (nil . "MuleArabic-0")
 433              (nil . "MuleArabic-1")
 434              (nil . "MuleArabic-2")
 435              (nil . "ISO8859-6"))
 436
 437      (hebrew ,(font-spec :registry "iso10646-1" :script 'hebrew)
 438              (nil . "ISO8859-8"))
 439
 440      (khmer ,(font-spec :registry "iso10646-1" :otf '(khmr nil (pres))))
 441
 442      (kana (nil . "JISX0208*")
 443            (nil . "GB2312.1980-0")
 444            (nil . "KSC5601.1987*")
 445            (nil . "JISX0201*")
 446            (nil . "JISX0213.2000-1")
 447            (nil . "JISX0213.2004-1")
 448            ,(font-spec :registry "iso10646-1" :script 'kana))
 449
 450      (bopomofo ,(font-spec :registry "iso10646-1" :script 'bopomofo)
 451                (nil . "sisheng_cwnn-0"))
 452
 453      (han (nil . "GB2312.1980-0")
 454           (nil . "JISX0208*")
 455           (nil . "JISX0212*")
 456           (nil . "big5*")
 457           (nil . "KSC5601.1987*")
 458           (nil . "CNS11643.1992-1")
 459           (nil . "CNS11643.1992-2")
 460           (nil . "CNS11643.1992-3")
 461           (nil . "CNS11643.1992-4")
 462           (nil . "CNS11643.1992-5")
 463           (nil . "CNS11643.1992-6")
 464           (nil . "CNS11643.1992-7")
 465           (nil . "gbk-0")
 466           (nil . "gb18030")
 467           (nil . "JISX0213.2000-1")
 468           (nil . "JISX0213.2000-2")
 469           (nil . "JISX0213.2004-1")
 470           ,(font-spec :registry "iso10646-1" :lang 'ja)
 471           ,(font-spec :registry "iso10646-1" :lang 'zh))
 472
 473      (cjk-misc (nil . "GB2312.1980-0")
 474                (nil . "JISX0208*")
 475                (nil . "JISX0212*")
 476                (nil . "big5*")
 477                (nil . "KSC5601.1987*")
 478                (nil . "CNS11643.1992-1")
 479                (nil . "CNS11643.1992-2")
 480                (nil . "CNS11643.1992-3")
 481                (nil . "CNS11643.1992-4")
 482                (nil . "CNS11643.1992-5")
 483                (nil . "CNS11643.1992-6")
 484                (nil . "CNS11643.1992-7")
 485                (nil . "gbk-0")
 486                (nil . "gb18030")
 487                (nil . "JISX0213.2000-1")
 488                (nil . "JISX0213.2000-2")
 489                ,(font-spec :registry "iso10646-1" :lang 'ja)
 490                ,(font-spec :registry "iso10646-1" :lang 'zh))
 491
 492      (hangul (nil . "KSC5601.1987-0")
 493              ,(font-spec :registry "iso10646-1" :lang 'ko))
 494
 495      ;; for each charset
 496      (ascii (nil . "ISO8859-1"))
 497      (arabic-digit ("*" . "MuleArabic-0"))
 498      (arabic-1-column ("*" . "MuleArabic-1"))
 499      (arabic-2-column ("*" . "MuleArabic-2"))
 500      (indian-is13194 (nil . "is13194-devanagari"))
 501      (indian-1-column ("*" . "muleindian-2"))
 502      ;; Indian CDAC
 503      (devanagari-cdac (nil . "Devanagari-CDAC"))
 504      (sanskrit-cdac (nil . "Sanskrit-CDAC"))
 505      (bengali-cdac (nil . "Bengali-CDAC"))
 506      (assamese-cdac (nil . "Assamese-CDAC"))
 507      (punjabi-cdac (nil . "Punjabi-CDAC"))
 508      (gujarati-cdac (nil . "Gujarati-CDAC"))
 509      (oriya-cdac (nil . "Oriya-CDAC"))
 510      (tamil-cdac (nil . "Tamil-CDAC"))
 511      (telugu-cdac (nil . "Telugu-CDAC"))
 512      (kannada-cdac (nil . "Kannada-CDAC"))
 513      (malayalam-cdac (nil . "Malayalam-CDAC"))
 514      ;; Indian AKRUTI
 515      (devanagari-akruti (nil . "Devanagari-Akruti"))
 516      (bengali-akruti (nil . "Bengali-Akruti"))
 517      (punjabi-akruti (nil . "Punjabi-Akruti"))
 518      (gujarati-akruti (nil . "Gujarati-Akruti"))
 519      (oriya-akruti (nil . "Oriya-Akruti"))
 520      (tamil-akruti (nil . "Tamil-Akruti"))
 521      (telugu-akruti (nil . "Telugu-Akruti"))
 522      (kannada-akruti (nil . "Kannada-Akruti"))
 523      (malayalam-akruti (nil . "Malayalam-Akruti"))
 524
 525      ;; Fallback fonts
 526      (nil (nil . "gb2312.1980")
 527           (nil . "gbk-0")
 528           (nil . "gb18030")
 529           (nil . "jisx0208")
 530           (nil . "ksc5601.1987")
 531           (nil . "CNS11643.1992-1")
 532           (nil . "CNS11643.1992-2")
 533           (nil . "CNS11643.1992-3")
 534           (nil . "CNS11643.1992-4")
 535           (nil . "CNS11643.1992-5")
 536           (nil . "CNS11643.1992-6")
 537           (nil . "CNS11643.1992-7")
 538           (nil . "big5")
 539           (nil . "jisx0213.2000-1")
 540           (nil . "jisx0213.2004-1")
 541           (nil . "jisx0212"))
 542      ))
 543
 544   ;; For simple scripts
 545   (dolist (script '(phonetic
 546                     armenian
 547                     syriac
 548                     thaana
 549                     myanmar
 550                     georgian
 551                     cherokee
 552                     canadian-aboriginal
 553                     ogham
 554                     runic
 555                     symbol
 556                     braille
 557                     yi
 558                     aegean-number
 559                     ancient-greek-number
 560                     ancient-symbol
 561                     phaistos-disc
 562                     lycian
 563                     carian
 564                     olt-italic
 565                     ugaritic
 566                     old-persian
 567                     deseret
 568                     shavian
 569                     osmanya
 570                     cypriot-syllabary
 571                     phoenician
 572                     lydian
 573                     kharoshthi
 574                     cuneiform
 575                     cuneiform-numbers-and-punctuation
 576                     byzantine-musical-symbol
 577                     musical-symbol
 578                     ancient-greek-musical-notation
 579                     tai-xuan-jing-symbol
 580                     counting-rod-numeral
 581                     mahjong-tile
 582                     domino-tile))
 583     (set-fontset-font "fontset-default"
 584                       script (font-spec :registry "iso10646-1" :script script)
 585                       nil 'append))
 586
 587   ;; Special settings for `MATHEMATICAL (U+1D400..U+1D7FF)'.
 588   (dolist (math-subgroup '((#x1D400 #x1D433 mathematical-bold)
 589                            (#x1D434 #x1D467 mathematical-italic)
 590                            (#x1D468 #x1D49B mathematical-bold-italic)
 591                            (#x1D49C #x1D4CF mathematical-script)
 592                            (#x1D4D0 #x1D503 mathematical-bold-script)
 593                            (#x1D504 #x1D537 mathematical-fraktur)
 594                            (#x1D538 #x1D56B mathematical-double-struck)
 595                            (#x1D56C #x1D59F mathematical-bold-fraktur)
 596                            (#x1D5A0 #x1D5D3 mathematical-sans-serif)
 597                            (#x1D5D4 #x1D607 mathematical-sans-serif-bold)
 598                            (#x1D608 #x1D63B mathematical-sans-serif-italic)
 599                            (#x1D63C #x1D66F mathematical-sans-serif-bold-italic)
 600                            (#x1D670 #x1D6A3 mathematical-monospace)
 601                            (#x1D6A4 #x1D6A5 mathematical-italic)
 602                            (#x1D6A8 #x1D6E1 mathematical-bold)
 603                            (#x1D6E2 #x1D71B mathematical-italic)
 604                            (#x1D71C #x1D755 mathematical-bold-italic)
 605                            (#x1D756 #x1D78F mathematical-sans-serif-bold)
 606                            (#x1D790 #x1D7C9 mathematical-sans-serif-bold-italic)
 607                            (#x1D7CA #x1D7D7 mathematical-bold)
 608                            (#x1D7D8 #x1D7E1 mathematical-double-struck)
 609                            (#x1D7E2 #x1D7EB mathematical-sans-serif)
 610                            (#x1D7EC #x1D7F5 mathematical-sans-serif-bold)
 611                            (#x1D7F6 #x1D7FF mathematical-monospace)))
 612     (let ((slot (assq (nth 2 math-subgroup) script-representative-chars)))
 613       (if slot
 614           (if (vectorp (cdr slot))
 615               (setcdr slot (vconcat (cdr slot) (vector (car math-subgroup))))
 616             (setcdr slot (vector (cadr slot) (car math-subgroup))))
 617         (setq slot (list (nth 2 math-subgroup) (car math-subgroup)))
 618         (nconc script-representative-chars (list slot))))
 619     (set-fontset-font
 620      "fontset-default"
 621      (cons (car math-subgroup) (nth 1 math-subgroup))
 622      (font-spec :registry "iso10646-1" :script (nth 2 math-subgroup))))
 623
 624   ;; Append CJK fonts for characters other than han, kana, cjk-misc.
 625   ;; Append fonts for scripts whose name is also a charset name.
 626   (let* ((data (build-default-fontset-data))
 627          (registries (car data)))
 628     (dolist (target-spec (cdr data))
 629       (let ((target (car target-spec))
 630             (spec (cdr target-spec)))
 631         (if (integerp spec)
 632             (dotimes (i (length registries))
 633               (if (> (logand spec (lsh 1 i)) 0)
 634                   (set-fontset-font "fontset-default" target
 635                                     (cons nil (aref registries i))
 636                                     nil 'append)))
 637         (dolist (args spec)
 638           (set-fontset-font "fontset-default" target
 639                             (apply 'font-spec args) nil 'append))))))
 640
 641   ;; Append Unicode fonts.
 642   ;; This may find fonts with more variants (bold, italic) but which
 643   ;; don't cover many characters.
 644   (set-fontset-font "fontset-default" nil
 645                     '(nil . "iso10646-1") nil 'prepend)
 646   ;; These may find fonts that cover many characters but with fewer
 647   ;; variants.
 648   (set-fontset-font "fontset-default" nil
 649                     '("gnu-unifont" . "iso10646-1") nil 'prepend)
 650   (set-fontset-font "fontset-default" nil
 651                     '("mutt-clearlyu" . "iso10646-1") nil 'prepend)
 652   (set-fontset-font "fontset-default" '(#x20000 . #x2FFFF)
 653                     '(nil . "unicode-sip"))
 654
 655   (set-fontset-font "fontset-default" '(#xE000 . #xF8FF)
 656                     '(nil . "iso10646-1"))
 657   ;; Don't try the fallback fonts even if no suitable font was found
 658   ;; by the above font-spec.
 659   (set-fontset-font "fontset-default" '(#xE000 . #xF8FF) nil nil 'append))
 660
 661 (defun create-default-fontset ()
 662   "Create the default fontset.
 663 Internal use only.  Should be called at startup time."
 664   (condition-case err
 665       (setup-default-fontset)
 666     (error (display-warning
 667             'initialization
 668             (format "Creation of the default fontsets failed: %s" err)
 669             :error))))
 670
 671 ;; These are the registered registries/encodings from
 672 ;; ftp://ftp.x.org/pub/DOCS/registry 2001/06/01
 673
 674 ;; Name                                            Reference
 675 ;; ----                                            ---------
 676 ;; "DEC"                                           [27]
 677 ;;         registry prefix
 678 ;; "DEC.CNS11643.1986-2"                           [53]
 679 ;;         CNS11643 2-plane using the encoding
 680 ;;         suggested in that standard
 681 ;; "DEC.DTSCS.1990-2"                              [54]
 682 ;;         DEC Taiwan Supplemental Character Set
 683 ;; "fujitsu.u90x01.1991-0"                         [87]
 684 ;; "fujitsu.u90x03.1991-0"                         [87]
 685 ;; "GB2312.1980-0"                                 [39],[12]
 686 ;;         China (PRC) Hanzi, GL encoding
 687 ;; "GB2312.1980-1"                                 [39]
 688 ;;         (deprecated)
 689 ;;         China (PRC) Hanzi, GR encoding
 690 ;; "HP-Arabic8"                                    [36]
 691 ;;         HPARABIC8 8-bit character set
 692 ;; "HP-East8"                                      [36]
 693 ;;         HPEAST8 8-bit character set
 694 ;; "HP-Greek8"                                     [36]
 695 ;;         HPGREEK8 8-bit character set
 696 ;; "HP-Hebrew8"                                    [36]
 697 ;;         HPHEBREW8 8-bit character set
 698 ;; "HP-Japanese15"                                 [36]
 699 ;;         HPJAPAN15 15-bit characer set,
 700 ;;         modified from industry defacto
 701 ;;         standard Shift-JIS
 702 ;; "HP-Kana8"                                      [36]
 703 ;;         HPKANA8 8-bit character set
 704 ;; "HP-Korean15"                                   [36]
 705 ;;         HPKOREAN15 15-bit character set
 706 ;; "HP-Roman8"                                     [36]
 707 ;;         HPROMAN8 8-bit character set
 708 ;; "HP-SChinese15"                                 [36]
 709 ;;         HPSCHINA15 15-bit character set for
 710 ;;         support of Simplified Chinese
 711 ;; "HP-TChinese15"                                 [36]
 712 ;;         HPTCHINA15 15-bit character set for
 713 ;;         support of Traditional Chinese
 714 ;; "HP-Turkish8"                                   [36]
 715 ;;         HPTURKISH8 8-bit character set
 716 ;; "IPSYS"                                         [59]
 717 ;;         registry prefix
 718 ;; "IPSYS.IE-1"                                    [59]
 719 ;; "ISO2022"<REG>"-"<ENC>                          [44]
 720 ;; "ISO646.1991-IRV"                               [107]
 721 ;;         ISO 646 International Reference Version
 722 ;; "ISO8859-1"                                     [15],[12]
 723 ;;         ISO Latin alphabet No. 1
 724 ;; "ISO8859-2"                                     [15],[12]
 725 ;;         ISO Latin alphabet No. 2
 726 ;; "ISO8859-3"                                     [15],[12]
 727 ;;         ISO Latin alphabet No. 3
 728 ;; "ISO8859-4"                                     [15],[12]
 729 ;;         ISO Latin alphabet No. 4
 730 ;; "ISO8859-5"                                     [15],[12]
 731 ;;         ISO Latin/Cyrillic alphabet
 732 ;; "ISO8859-6"                                     [15],[12]
 733 ;;         ISO Latin/Arabic alphabet
 734 ;; "ISO8859-7"                                     [15],[12]
 735 ;;         ISO Latin/Greek alphabet
 736 ;; "ISO8859-8"                                     [15],[12]
 737 ;;         ISO Latin/Hebrew alphabet
 738 ;; "ISO8859-9"                                     [15],[12]
 739 ;;         ISO Latin alphabet No. 5
 740 ;; "ISO8859-10"                                    [15],[12]
 741 ;;         ISO Latin alphabet No. 6
 742 ;; "ISO8859-13"                                    [15],[12]
 743 ;;         ISO Latin alphabet No. 7
 744 ;; "ISO8859-14"                                    [15],[12]
 745 ;;         ISO Latin alphabet No. 8
 746 ;; "ISO8859-15"                                    [15],[12]
 747 ;;         ISO Latin alphabet No. 9
 748 ;; "FCD8859-15"                                    [7]
 749 ;;         (deprecated)
 750 ;;         ISO Latin alphabet No. 9, Final Committee Draft
 751 ;; "ISO10646-1"                                    [133]
 752 ;;         Unicode Universal Multiple-Octet Coded Character Set
 753 ;; "ISO10646-MES"                                  [133]
 754 ;;         (deprecated)
 755 ;;         Unicode Minimum European Subset
 756 ;; "JISX0201.1976-0"                               [38],[12]
 757 ;;         8-Bit Alphanumeric-Katakana Code
 758 ;; "JISX0208.1983-0"                               [40],[12]
 759 ;;         Japanese Graphic Character Set,
 760 ;;         GL encoding
 761 ;; "JISX0208.1990-0"                               [71]
 762 ;;         Japanese Graphic Character Set,
 763 ;;         GL encoding
 764 ;; "JISX0208.1983-1"                               [40]
 765 ;;         (deprecated)
 766 ;;         Japanese Graphic Character Set,
 767 ;;         GR encoding
 768 ;; "JISX0212.1990-0"                               [72]
 769 ;;         Supplementary Japanese Graphic Character Set,
 770 ;;         GL encoding
 771 ;; "KOI8-R"                                        [119]
 772 ;;         Cyrillic alphabet
 773 ;; "KSC5601.1987-0"                                [41],[12]
 774 ;;         Korean Graphic Character Set,
 775 ;;         GL encoding
 776 ;; "KSC5601.1987-1"                                [41]
 777 ;;         (deprecated)
 778 ;;         Korean Graphic Character Set,
 779 ;;         GR encoding
 780 ;; "omron_CNS11643-0"                              [45]
 781 ;; "omron_CNS11643-1"                              [45]
 782 ;; "omron_BIG5-0"                                  [45]
 783 ;; "omron_BIG5-1"                                  [45]
 784 ;; "wn.tamil.1993"                                 [103]
 785
 786 (defun set-font-encoding (pattern charset)
 787   "Set arguments in `font-encoding-alist' (which see)."
 788   (let ((slot (assoc pattern font-encoding-alist)))
 789     (if slot
 790         (setcdr slot charset)
 791       (setq font-encoding-alist
 792             (cons (cons pattern charset) font-encoding-alist)))))
 793
 794 (defvar x-pixel-size-width-font-regexp)
 795 (defvar vertical-centering-font-regexp)
 796
 797 ;; Setting for suppressing XLoadQueryFont on big fonts.
 798 (setq x-pixel-size-width-font-regexp
 799       (purecopy "gb2312\\|gbk\\|gb18030\\|jisx0208\\|ksc5601\\|cns11643\\|big5"))
 800
 801 ;; These fonts require vertical centering.
 802 (setq vertical-centering-font-regexp
 803       (purecopy "gb2312\\|gbk\\|gb18030\\|jisx0208\\|jisx0212\\|ksc5601\\|cns11643\\|big5"))
 804
 805 ;; CDAC fonts are actually smaller than their design sizes.
 806 (setq face-font-rescale-alist
 807       (list (cons (purecopy "-cdac$")  1.3)))
 808
 809 (defvar x-font-name-charset-alist nil
 810   "This variable has no meaning now.  Just kept for backward compatibility.")
 811
 812 ;;; XLFD (X Logical Font Description) format handler.
 813
 814 ;; Define XLFD's field index numbers.           ; field name
 815 (defconst xlfd-regexp-family-subnum 0)          ; FOUNDRY and FAMILY
 816 (defconst xlfd-regexp-weight-subnum 1)          ; WEIGHT_NAME
 817 (defconst xlfd-regexp-slant-subnum 2)           ; SLANT
 818 (defconst xlfd-regexp-swidth-subnum 3)          ; SETWIDTH_NAME
 819 (defconst xlfd-regexp-adstyle-subnum 4)         ; ADD_STYLE_NAME
 820 (defconst xlfd-regexp-pixelsize-subnum 5)       ; PIXEL_SIZE
 821 (defconst xlfd-regexp-pointsize-subnum 6)       ; POINT_SIZE
 822 (defconst xlfd-regexp-resx-subnum 7)            ; RESOLUTION_X
 823 (defconst xlfd-regexp-resy-subnum 8)            ; RESOLUTION_Y
 824 (defconst xlfd-regexp-spacing-subnum 8)         ; SPACING
 825 (defconst xlfd-regexp-avgwidth-subnum 10)       ; AVERAGE_WIDTH
 826 (defconst xlfd-regexp-registry-subnum 11)       ; REGISTRY and ENCODING
 827
 828 ;; Regular expression matching against a fontname which conforms to
 829 ;; XLFD (X Logical Font Description).  All fields in XLFD should be
 830 ;; not be omitted (but can be a wild card) to be matched.
 831 (defconst xlfd-tight-regexp
 832   "^\
 833 -\\([^-]*-[^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)\
 834 -\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)\
 835 -\\([^-]*\\)-\\([^-]*\\)-\\([^-]*-[^-]*\\)$")
 836
 837 ;; Regular expression matching against a fontname which conforms to
 838 ;; XLFD (X Logical Font Description).  All fields in XLFD from FOUNDRY
 839 ;; to ADSTYLE, REGISTRY, and ENCODING should be not be omitted (but
 840 ;; can be a wild card) to be matched.
 841 (defconst xlfd-style-regexp
 842   "^\
 843 -\\([^-]*-[^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-.*\
 844 -\\([^-]*-[^-]*\\)$")
 845
 846 ;; List of field numbers of XLFD whose values are numeric.
 847 (defconst xlfd-regexp-numeric-subnums
 848   (list xlfd-regexp-pixelsize-subnum    ;5
 849         xlfd-regexp-pointsize-subnum    ;6
 850         xlfd-regexp-resx-subnum         ;7
 851         xlfd-regexp-resy-subnum         ;8
 852         xlfd-regexp-avgwidth-subnum     ;10
 853         ))
 854
 855 (defun x-decompose-font-name (pattern)
 856   "Decompose PATTERN into XLFD fields and return a vector of the fields.
 857 The length of the vector is 12.
 858 The FOUNDRY and FAMILY fields are concatinated and stored in the first
 859 element of the vector.
 860 The REGISTRY and ENCODING fields are concatinated and stored in the last
 861 element of the vector.
 862
 863 Return nil if PATTERN doesn't conform to XLFD."
 864   (if (string-match xlfd-tight-regexp pattern)
 865       (let ((xlfd-fields (make-vector 12 nil)))
 866         (dotimes (i 12)
 867           (aset xlfd-fields i (match-string (1+ i) pattern)))
 868         (dotimes (i 12)
 869           (if (string-match "^[*-]+$" (aref xlfd-fields i))
 870               (aset xlfd-fields i nil)))
 871         xlfd-fields)))
 872
 873 (defun x-compose-font-name (fields &optional reduce)
 874   "Compose X fontname from FIELDS.
 875 FIELDS is a vector of XLFD fields, of length 12.
 876 If a field is nil, wild-card letter `*' is embedded.
 877 Optional argument REDUCE exists just for backward compatibility,
 878 and is always ignored."
 879   (concat "-" (mapconcat (lambda (x) (or x "*")) fields "-")))
 880
 881
 882 (defun x-must-resolve-font-name (xlfd-fields)
 883   "Like `x-resolve-font-name', but always return a font name.
 884 XLFD-FIELDS is a vector of XLFD (X Logical Font Description) fields.
 885 If no font matching XLFD-FIELDS is available, successively replace
 886 parts of the font name pattern with \"*\" until some font is found.
 887 Value is name of that font."
 888   (let ((ascii-font nil) (index 0))
 889     (while (and (null ascii-font) (<= index xlfd-regexp-registry-subnum))
 890       (let ((pattern (x-compose-font-name xlfd-fields)))
 891         (condition-case nil
 892             (setq ascii-font (x-resolve-font-name pattern))
 893           (error
 894            (message "Warning: no fonts matching `%s' available" pattern)
 895            (aset xlfd-fields index "*")
 896            (setq index (1+ index))))))
 897     (unless ascii-font
 898       (error "No fonts found"))
 899     ascii-font))
 900
 901
 902 (defun x-complement-fontset-spec (default-spec fontlist)
 903   "Complement elements of FONTLIST based on DEFAULT-SPEC.
 904 DEFAULT-SPEC is a font-spec object providing default font properties.
 905 FONTLIST is an alist of script names vs the corresponding font names.
 906
 907 The font names are parsed and unspecified font properties are
 908 given from DEFAULT-SPEC."
 909   (let ((prop-list '(:foundry :family :weight :slant :width :adstyle :size)))
 910     (dolist (elt fontlist)
 911       (let ((spec (font-spec :name (cadr elt))))
 912         (dolist (prop prop-list)
 913           (let ((val (font-get spec prop)))
 914             (or val
 915                 (font-put spec prop (font-get default-spec prop)))))
 916         (setcar (cdr elt) spec)))
 917     fontlist))
 918
 919 (defun fontset-name-p (fontset)
 920   "Return non-nil if FONTSET is valid as fontset name.
 921 A valid fontset name should conform to XLFD (X Logical Font Description)
 922 with \"fontset\" in `<CHARSET_REGISTRY>' field."
 923   (and (string-match xlfd-tight-regexp fontset)
 924        (string= (match-string (1+ xlfd-regexp-registry-subnum) fontset)
 925                 "fontset")))
 926
 927 (declare-function fontset-list "fontset.c" ())
 928
 929 (defun generate-fontset-menu ()
 930   "Return list to be appended to `x-fixed-font-alist'.
 931 Done when `mouse-set-font' is called."
 932   (let (l)
 933     (dolist (fontset (fontset-list))
 934       (or (string-match "fontset-default$" fontset)
 935           (string-match "fontset-auto[0-9]+$" fontset)
 936           (push (list (fontset-plain-name fontset) fontset) l)))
 937     (cons "Fontset"
 938           (sort l #'(lambda (x y) (string< (car x) (car y)))))))
 939
 940 (declare-function query-fontset "fontset.c" (pattern &optional regexpp))
 941
 942 (defun fontset-plain-name (fontset)
 943   "Return a plain and descriptive name of FONTSET."
 944   (if (not (setq fontset (query-fontset fontset)))
 945       (error "Invalid fontset: %s" fontset))
 946   (let ((xlfd-fields (x-decompose-font-name fontset)))
 947     (if xlfd-fields
 948         (let ((family (aref xlfd-fields xlfd-regexp-family-subnum))
 949               (weight (aref xlfd-fields xlfd-regexp-weight-subnum))
 950               (slant  (aref xlfd-fields xlfd-regexp-slant-subnum))
 951               (swidth (aref xlfd-fields xlfd-regexp-swidth-subnum))
 952               (size   (aref xlfd-fields xlfd-regexp-pixelsize-subnum))
 953               (nickname (aref xlfd-fields xlfd-regexp-registry-subnum))
 954               name)
 955           (if (not (string-match "^fontset-\\(.*\\)$" nickname))
 956               (setq nickname family)
 957             (setq nickname (match-string 1 nickname)))
 958           (if (and size (> (string-to-number size) 0))
 959               (setq name (format "%s: %s-dot" nickname size))
 960             (setq name nickname))
 961           (and weight
 962                (cond ((string-match "^medium$" weight)
 963                       (setq name (concat name " " "medium")))
 964                      ((string-match "^bold$\\|^demibold$" weight)
 965                       (setq name (concat name " " weight)))))
 966           (and slant
 967                (cond ((string-match "^i$" slant)
 968                       (setq name (concat name " " "italic")))
 969                      ((string-match "^o$" slant)
 970                       (setq name (concat name " " "slant")))
 971                      ((string-match "^ri$" slant)
 972                       (setq name (concat name " " "reverse italic")))
 973                      ((string-match "^ro$" slant)
 974                       (setq name (concat name " " "reverse slant")))))
 975           name)
 976       fontset)))
 977
 978 (defvar charset-script-alist
 979   '((ascii . latin)
 980     (latin-iso8859-1 . latin)
 981     (latin-iso8859-2 . latin)
 982     (latin-iso8859-3 . latin)
 983     (latin-iso8859-4 . latin)
 984     (latin-iso8859-9 . latin)
 985     (latin-iso8859-10 . latin)
 986     (latin-iso8859-13 . latin)
 987     (latin-iso8859-14 . latin)
 988     (latin-iso8859-15 . latin)
 989     (latin-iso8859-16 . latin)
 990     (latin-jisx0201 . latin)
 991     (thai-tis620 . thai)
 992     (cyrillic-iso8859-5 . cyrillic)
 993     (arabic-iso8859-6 . arabic)
 994     (greek-iso8859-7 . latin)
 995     (hebrew-iso8859-8 . latin)
 996     (katakana-jisx0201 . kana)
 997     (chinese-gb2312 . han)
 998     (chinese-gbk . han)
 999     (gb18030-2-byte . han)
1000     (gb18030-4-byte-bmp . han)
1001     (gb18030-4-byte-ext-1 . han)
1002     (gb18030-4-byte-ext-2 . han)
1003     (gb18030-4-byte-smp . han)
1004     (chinese-big5-1 . han)
1005     (chinese-big5-2 . han)
1006     (chinese-cns11643-1 . han)
1007     (chinese-cns11643-2 . han)
1008     (chinese-cns11643-3 . han)
1009     (chinese-cns11643-4 . han)
1010     (chinese-cns11643-5 . han)
1011     (chinese-cns11643-6 . han)
1012     (chinese-cns11643-7 . han)
1013     (japanese-jisx0208 . han)
1014     (japanese-jisx0208-1978 . han)
1015     (japanese-jisx0212 . han)
1016     (japanese-jisx0213-1 . han)
1017     (japanese-jisx0213-2 . han)
1018     (korean-ksc5601 . hangul)
1019     (chinese-sisheng . bopomofo)
1020     (vietnamese-viscii-lower . latin)
1021     (vietnamese-viscii-upper . latin)
1022     (arabic-digit . arabic)
1023     (arabic-1-column . arabic)
1024     (arabic-2-column . arabic)
1025     (indian-is13194 . devanagari)
1026     (indian-glyph . devanagari)
1027     (indian-1-column . devanagari)
1028     (indian-2-column . devanagari)
1029     (tibetan-1-column . tibetan))
1030   "Alist of charsets vs the corresponding most appropriate scripts.
1031
1032 This alist is used by the function `create-fontset-from-fontset-spec'
1033 to map charsets to scripts.")
1034
1035 (defun create-fontset-from-fontset-spec (fontset-spec
1036                                          &optional style-variant noerror)
1037   "Create a fontset from fontset specification string FONTSET-SPEC.
1038 FONTSET-SPEC is a string of the format:
1039         FONTSET-NAME,SCRIPT-NAME0:FONT-NAME0,SCRIPT-NAME1:FONT-NAME1, ...
1040 Any number of SPACE, TAB, and NEWLINE can be put before and after commas.
1041
1042 When a frame uses the fontset as the `font' parameter, the frame's
1043 default font name is derived from FONTSET-NAME by substituting
1044 \"iso8859-1\" for the tail part \"fontset-XXX\".  But, if SCRIPT-NAMEn
1045 is \"ascii\", use the corresponding FONT-NAMEn as the default font
1046 name.
1047
1048 Optional 2nd and 3rd arguments exist just for backward compatibility,
1049 and are ignored.
1050
1051 It returns a name of the created fontset.
1052
1053 For backward compatibility, SCRIPT-NAME may be a charset name, in
1054 which case, the corresponding script is decided by the variable
1055 `charset-script-alist' (which see)."
1056   (or (string-match "^[^,]+" fontset-spec)
1057       (error "Invalid fontset spec: %s" fontset-spec))
1058   (let ((idx (match-end 0))
1059         (name (match-string 0 fontset-spec))
1060         default-spec target script fontlist)
1061     (or (string-match xlfd-tight-regexp name)
1062         (error "Fontset name \"%s\" not conforming to XLFD" name))
1063     (setq default-spec (font-spec :name name))
1064     ;; At first, extract pairs of charset and fontname from FONTSET-SPEC.
1065     (while (string-match "[, \t\n]*\\([^:]+\\):[ \t]*\\([^,]+\\)"
1066                          fontset-spec idx)
1067       (setq idx (match-end 0))
1068       (setq target (intern (match-string 1 fontset-spec)))
1069       (cond ((or (eq target 'ascii)
1070                  (memq target (char-table-extra-slot char-script-table 0)))
1071              (push (list target (match-string 2 fontset-spec)) fontlist))
1072             ((setq script (cdr (assq target charset-script-alist)))
1073              (push (list script (match-string 2 fontset-spec)) fontlist))
1074             ((charsetp target)
1075              (push (list target (match-string 2 fontset-spec)) fontlist))))
1076
1077     ;; Complement FONTLIST.
1078     (setq fontlist (x-complement-fontset-spec default-spec fontlist))
1079
1080     ;; Create a fontset.
1081     (new-fontset name (nreverse fontlist))))
1082
1083 (defun create-fontset-from-ascii-font (font &optional resolved-font
1084                                             fontset-name)
1085   "Create a fontset from an ASCII font FONT.
1086
1087 Optional 2nd arg RESOLVED-FONT is a resolved name of FONT.
1088 If omitted, `x-resolve-font-name' is called to get the resolved name.
1089 At this time, if FONT is not available, an error is signaled.
1090
1091 Optional 3rd arg FONTSET-NAME is a string to be used in
1092 `<CHARSET_ENCODING>' fields of a new fontset name.  If it is omitted,
1093 an appropriate name is generated automatically.
1094
1095 It returns a name of the created fontset."
1096   (setq font (downcase font))
1097   (setq resolved-font
1098         (downcase (or resolved-font (x-resolve-font-name font))))
1099   (let ((xlfd (x-decompose-font-name resolved-font))
1100         fontset)
1101     (if fontset-name
1102         (setq fontset-name (downcase fontset-name))
1103       (if (query-fontset "fontset-startup")
1104           (setq fontset-name
1105                 (subst-char-in-string
1106                  ?- ?_ (aref xlfd xlfd-regexp-registry-subnum) t))
1107         (setq fontset-name "startup")))
1108     (aset xlfd xlfd-regexp-registry-subnum
1109           (format "fontset-%s" fontset-name))
1110     (setq fontset (x-compose-font-name xlfd))
1111     (or (query-fontset fontset)
1112         (create-fontset-from-fontset-spec (concat fontset ", ascii:" font)))))
1113
1114 \f
1115 ;; Create standard fontset from 16 dots fonts which are the most widely
1116 ;; installed fonts.  Fonts for Chinese-GB, Korean, and Chinese-CNS are
1117 ;; specified here because FAMILY of those fonts are not "fixed" in
1118 ;; many cases.
1119 (defvar standard-fontset-spec
1120   (purecopy "-*-fixed-medium-r-normal-*-16-*-*-*-*-*-fontset-standard")
1121   "String of fontset spec of the standard fontset.
1122 You have the biggest chance to display international characters
1123 with correct glyphs by using the standard fontset.
1124 See the documentation of `create-fontset-from-fontset-spec' for the format.")
1125
1126
1127 ;; Create fontsets from X resources of the name `fontset-N (class
1128 ;; Fontset-N)' where N is integer 0, 1, ...
1129 ;; The values of the resources the string of the same format as
1130 ;; `standard-fontset-spec'.
1131
1132 (declare-function x-get-resource "frame.c"
1133                   (attribute class &optional component subclass))
1134
1135 (defun create-fontset-from-x-resource ()
1136   (let ((idx 0)
1137         fontset-spec)
1138     (while (setq fontset-spec (x-get-resource (format "fontset-%d" idx)
1139                                               (format "Fontset-%d" idx)))
1140       (condition-case nil
1141           (create-fontset-from-fontset-spec fontset-spec t)
1142         (error (display-warning
1143                 'initialization
1144                 (format "Fontset-%d: invalid specification in X resource" idx)
1145                 :warning)))
1146       (setq idx (1+ idx)))))
1147
1148 ;;
1149 (provide 'fontset)
1150
1151 ;; arch-tag: bb53e629-0234-403c-950e-551e61554849
1152 ;;; fontset.el ends here