lisp/international/fontset.el

   1 ;;; fontset.el --- commands for handling fontset
   2
   3 ;; Copyright (C) 1997-2014 Free Software Foundation, Inc.
   4 ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
   5 ;;   2005, 2006, 2007, 2008, 2009, 2010, 2011
   6 ;;   National Institute of Advanced Industrial Science and Technology (AIST)
   7 ;;   Registration Number H14PRO021
   8 ;; Copyright (C) 2003, 2006
   9 ;;   National Institute of Advanced Industrial Science and Technology (AIST)
  10 ;;   Registration Number H13PRO009
  11
  12 ;; Keywords: mule, i18n, fontset
  13
  14 ;; This file is part of GNU Emacs.
  15
  16 ;; GNU Emacs is free software: you can redistribute it and/or modify
  17 ;; it under the terms of the GNU General Public License as published by
  18 ;; the Free Software Foundation, either version 3 of the License, or
  19 ;; (at your option) any later version.
  20
  21 ;; GNU Emacs is distributed in the hope that it will be useful,
  22 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  23 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  24 ;; GNU General Public License for more details.
  25
  26 ;; You should have received a copy of the GNU General Public License
  27 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  28
  29 ;;; Commentary:
  30
  31 ;;; Code:
  32
  33 ;; Setup font-encoding-alist for all known encodings.
  34
  35 (setq font-encoding-alist
  36       (mapcar (lambda (arg)
  37                 (cons (purecopy (car arg)) (cdr arg)))
  38       '(("iso8859-1$" . iso-8859-1)
  39         ("iso8859-2$" . iso-8859-2)
  40         ("iso8859-3$" . iso-8859-3)
  41         ("iso8859-4$" . iso-8859-4)
  42         ("iso8859-5$" . iso-8859-5)
  43         ("iso8859-6$" . iso-8859-6)
  44         ("iso8859-7$" . iso-8859-7)
  45         ("iso8859-8$" . iso-8859-8)
  46         ("iso8859-9$" . iso-8859-9)
  47         ("iso8859-10$" . iso-8859-10)
  48         ("iso8859-11$" . iso-8859-11)
  49         ("iso8859-13$" . iso-8859-13)
  50         ("iso8859-14$" . iso-8859-14)
  51         ("iso8859-15$" . iso-8859-15)
  52         ("iso8859-16$" . iso-8859-16)
  53         ("ascii-0$" . ascii)
  54         ("gb2312.1980" . chinese-gb2312)
  55         ("gbk" . chinese-gbk)
  56         ("gb18030" . (unicode . nil))
  57         ("jisx0208.1978" . japanese-jisx0208-1978)
  58         ("jisx0208" . japanese-jisx0208)
  59         ("jisx0201" . jisx0201)
  60         ("jisx0212" . japanese-jisx0212)
  61         ("ksx1001" . korean-ksc5601)
  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         (burmese #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 . burmese)
 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      (burmese ,(font-spec :registry "iso10646-1" :otf '(mymr nil nil))
 419               ,(font-spec :registry "iso10646-1" :script 'burmese))
 420
 421      (lao ,(font-spec :registry "iso10646-1" :otf '(lao\  nil nil (mark)))
 422           ,(font-spec :registry "iso10646-1" :script 'lao)
 423           (nil . "MuleLao-1"))
 424
 425      (tai-viet ("TaiViet" . "iso10646-1"))
 426
 427      (greek ,(font-spec :registry "iso10646-1" :script 'greek)
 428             (nil . "ISO8859-7"))
 429
 430      (cyrillic ,(font-spec :registry "iso10646-1" :script 'cyrillic)
 431                (nil . "ISO8859-5")
 432                (nil . "microsoft-cp1251")
 433                (nil . "koi8-r"))
 434
 435      (arabic ,(font-spec :registry "iso10646-1"
 436                          :otf '(arab nil (init medi fina liga)))
 437              (nil . "MuleArabic-0")
 438              (nil . "MuleArabic-1")
 439              (nil . "MuleArabic-2")
 440              (nil . "ISO8859-6"))
 441
 442      (hebrew ,(font-spec :registry "iso10646-1" :script 'hebrew)
 443              (nil . "ISO8859-8"))
 444
 445      (khmer ,(font-spec :registry "iso10646-1" :otf '(khmr nil (pres))))
 446
 447      (kana (nil . "JISX0208*")
 448            (nil . "GB2312.1980-0")
 449            (nil . "KSC5601.1987*")
 450            (nil . "JISX0201*")
 451            (nil . "JISX0213.2000-1")
 452            (nil . "JISX0213.2004-1")
 453            ,(font-spec :registry "iso10646-1" :script 'kana))
 454
 455      (bopomofo ,(font-spec :registry "iso10646-1" :script 'bopomofo)
 456                (nil . "sisheng_cwnn-0"))
 457
 458      (han (nil . "GB2312.1980-0")
 459           (nil . "JISX0208*")
 460           (nil . "JISX0212*")
 461           (nil . "big5*")
 462           (nil . "KSC5601.1987*")
 463           (nil . "CNS11643.1992-1")
 464           (nil . "CNS11643.1992-2")
 465           (nil . "CNS11643.1992-3")
 466           (nil . "CNS11643.1992-4")
 467           (nil . "CNS11643.1992-5")
 468           (nil . "CNS11643.1992-6")
 469           (nil . "CNS11643.1992-7")
 470           (nil . "gbk-0")
 471           (nil . "gb18030")
 472           (nil . "JISX0213.2000-1")
 473           (nil . "JISX0213.2000-2")
 474           (nil . "JISX0213.2004-1")
 475           ,(font-spec :registry "iso10646-1" :lang 'ja)
 476           ,(font-spec :registry "iso10646-1" :lang 'zh))
 477
 478      (cjk-misc (nil . "GB2312.1980-0")
 479                (nil . "JISX0208*")
 480                (nil . "JISX0212*")
 481                (nil . "big5*")
 482                (nil . "KSC5601.1987*")
 483                (nil . "CNS11643.1992-1")
 484                (nil . "CNS11643.1992-2")
 485                (nil . "CNS11643.1992-3")
 486                (nil . "CNS11643.1992-4")
 487                (nil . "CNS11643.1992-5")
 488                (nil . "CNS11643.1992-6")
 489                (nil . "CNS11643.1992-7")
 490                (nil . "gbk-0")
 491                (nil . "gb18030")
 492                (nil . "JISX0213.2000-1")
 493                (nil . "JISX0213.2000-2")
 494                ,(font-spec :registry "iso10646-1" :lang 'ja)
 495                ,(font-spec :registry "iso10646-1" :lang 'zh))
 496
 497      (hangul (nil . "KSC5601.1987-0")
 498              ,(font-spec :registry "iso10646-1" :lang 'ko))
 499
 500      ;; for each charset
 501      (ascii (nil . "ISO8859-1"))
 502      (arabic-digit ("*" . "MuleArabic-0"))
 503      (arabic-1-column ("*" . "MuleArabic-1"))
 504      (arabic-2-column ("*" . "MuleArabic-2"))
 505      (indian-is13194 (nil . "is13194-devanagari"))
 506      (indian-1-column ("*" . "muleindian-2"))
 507      ;; Indian CDAC
 508      (devanagari-cdac (nil . "Devanagari-CDAC"))
 509      (sanskrit-cdac (nil . "Sanskrit-CDAC"))
 510      (bengali-cdac (nil . "Bengali-CDAC"))
 511      (assamese-cdac (nil . "Assamese-CDAC"))
 512      (punjabi-cdac (nil . "Punjabi-CDAC"))
 513      (gujarati-cdac (nil . "Gujarati-CDAC"))
 514      (oriya-cdac (nil . "Oriya-CDAC"))
 515      (tamil-cdac (nil . "Tamil-CDAC"))
 516      (telugu-cdac (nil . "Telugu-CDAC"))
 517      (kannada-cdac (nil . "Kannada-CDAC"))
 518      (malayalam-cdac (nil . "Malayalam-CDAC"))
 519      ;; Indian AKRUTI
 520      (devanagari-akruti (nil . "Devanagari-Akruti"))
 521      (bengali-akruti (nil . "Bengali-Akruti"))
 522      (punjabi-akruti (nil . "Punjabi-Akruti"))
 523      (gujarati-akruti (nil . "Gujarati-Akruti"))
 524      (oriya-akruti (nil . "Oriya-Akruti"))
 525      (tamil-akruti (nil . "Tamil-Akruti"))
 526      (telugu-akruti (nil . "Telugu-Akruti"))
 527      (kannada-akruti (nil . "Kannada-Akruti"))
 528      (malayalam-akruti (nil . "Malayalam-Akruti"))
 529
 530      ;; Fallback fonts
 531      (nil (nil . "gb2312.1980")
 532           (nil . "gbk-0")
 533           (nil . "gb18030")
 534           (nil . "jisx0208")
 535           (nil . "ksc5601.1987")
 536           (nil . "CNS11643.1992-1")
 537           (nil . "CNS11643.1992-2")
 538           (nil . "CNS11643.1992-3")
 539           (nil . "CNS11643.1992-4")
 540           (nil . "CNS11643.1992-5")
 541           (nil . "CNS11643.1992-6")
 542           (nil . "CNS11643.1992-7")
 543           (nil . "big5")
 544           (nil . "jisx0213.2000-1")
 545           (nil . "jisx0213.2004-1")
 546           (nil . "jisx0212"))
 547      ))
 548
 549   ;; For simple scripts
 550   (dolist (script '(phonetic
 551                     armenian
 552                     syriac
 553                     thaana
 554                     georgian
 555                     cherokee
 556                     canadian-aboriginal
 557                     ogham
 558                     runic
 559                     symbol
 560                     braille
 561                     yi
 562                     aegean-number
 563                     ancient-greek-number
 564                     ancient-symbol
 565                     phaistos-disc
 566                     lycian
 567                     carian
 568                     olt-italic
 569                     ugaritic
 570                     old-persian
 571                     deseret
 572                     shavian
 573                     osmanya
 574                     cypriot-syllabary
 575                     phoenician
 576                     lydian
 577                     kharoshthi
 578                     cuneiform
 579                     cuneiform-numbers-and-punctuation
 580                     byzantine-musical-symbol
 581                     musical-symbol
 582                     ancient-greek-musical-notation
 583                     tai-xuan-jing-symbol
 584                     counting-rod-numeral
 585                     mahjong-tile
 586                     domino-tile))
 587     (set-fontset-font "fontset-default"
 588                       script (font-spec :registry "iso10646-1" :script script)
 589                       nil 'append))
 590
 591   ;; Special settings for `MATHEMATICAL (U+1D400..U+1D7FF)'.
 592   (dolist (math-subgroup '((#x1D400 #x1D433 mathematical-bold)
 593                            (#x1D434 #x1D467 mathematical-italic)
 594                            (#x1D468 #x1D49B mathematical-bold-italic)
 595                            (#x1D49C #x1D4CF mathematical-script)
 596                            (#x1D4D0 #x1D503 mathematical-bold-script)
 597                            (#x1D504 #x1D537 mathematical-fraktur)
 598                            (#x1D538 #x1D56B mathematical-double-struck)
 599                            (#x1D56C #x1D59F mathematical-bold-fraktur)
 600                            (#x1D5A0 #x1D5D3 mathematical-sans-serif)
 601                            (#x1D5D4 #x1D607 mathematical-sans-serif-bold)
 602                            (#x1D608 #x1D63B mathematical-sans-serif-italic)
 603                            (#x1D63C #x1D66F mathematical-sans-serif-bold-italic)
 604                            (#x1D670 #x1D6A3 mathematical-monospace)
 605                            (#x1D6A4 #x1D6A5 mathematical-italic)
 606                            (#x1D6A8 #x1D6E1 mathematical-bold)
 607                            (#x1D6E2 #x1D71B mathematical-italic)
 608                            (#x1D71C #x1D755 mathematical-bold-italic)
 609                            (#x1D756 #x1D78F mathematical-sans-serif-bold)
 610                            (#x1D790 #x1D7C9 mathematical-sans-serif-bold-italic)
 611                            (#x1D7CA #x1D7D7 mathematical-bold)
 612                            (#x1D7D8 #x1D7E1 mathematical-double-struck)
 613                            (#x1D7E2 #x1D7EB mathematical-sans-serif)
 614                            (#x1D7EC #x1D7F5 mathematical-sans-serif-bold)
 615                            (#x1D7F6 #x1D7FF mathematical-monospace)))
 616     (let ((slot (assq (nth 2 math-subgroup) script-representative-chars)))
 617       (if slot
 618           (if (vectorp (cdr slot))
 619               (setcdr slot (vconcat (cdr slot) (vector (car math-subgroup))))
 620             (setcdr slot (vector (cadr slot) (car math-subgroup))))
 621         (setq slot (list (nth 2 math-subgroup) (car math-subgroup)))
 622         (nconc script-representative-chars (list slot))))
 623     (set-fontset-font
 624      "fontset-default"
 625      (cons (car math-subgroup) (nth 1 math-subgroup))
 626      (font-spec :registry "iso10646-1" :script (nth 2 math-subgroup))))
 627
 628   ;; Append CJK fonts for characters other than han, kana, cjk-misc.
 629   ;; Append fonts for scripts whose name is also a charset name.
 630   (let* ((data (build-default-fontset-data))
 631          (registries (car data)))
 632     (dolist (target-spec (cdr data))
 633       (let ((target (car target-spec))
 634             (spec (cdr target-spec)))
 635         (if (integerp spec)
 636             (dotimes (i (length registries))
 637               (if (> (logand spec (lsh 1 i)) 0)
 638                   (set-fontset-font "fontset-default" target
 639                                     (cons nil (aref registries i))
 640                                     nil 'append)))
 641         (dolist (args spec)
 642           (set-fontset-font "fontset-default" target
 643                             (apply 'font-spec args) nil 'append))))))
 644
 645   ;; Append Unicode fonts.
 646   ;; This may find fonts with more variants (bold, italic) but which
 647   ;; don't cover many characters.
 648   (set-fontset-font "fontset-default" nil
 649                     '(nil . "iso10646-1") nil 'prepend)
 650   ;; These may find fonts that cover many characters but with fewer
 651   ;; variants.
 652   (set-fontset-font "fontset-default" nil
 653                     '("gnu-unifont" . "iso10646-1") nil 'prepend)
 654   (set-fontset-font "fontset-default" nil
 655                     '("mutt-clearlyu" . "iso10646-1") nil 'prepend)
 656   (set-fontset-font "fontset-default" '(#x20000 . #x2FFFF)
 657                     '(nil . "unicode-sip"))
 658
 659   (set-fontset-font "fontset-default" '(#xE000 . #xF8FF)
 660                     '(nil . "iso10646-1"))
 661   ;; Don't try the fallback fonts even if no suitable font was found
 662   ;; by the above font-spec.
 663   (set-fontset-font "fontset-default" '(#xE000 . #xF8FF) nil nil 'append))
 664
 665 (defun create-default-fontset ()
 666   "Create the default fontset.
 667 Internal use only.  Should be called at startup time."
 668   (condition-case err
 669       (setup-default-fontset)
 670     (error (display-warning
 671             'initialization
 672             (format "Creation of the default fontsets failed: %s" err)
 673             :error))))
 674
 675 ;; These are the registered registries/encodings from
 676 ;; ftp://ftp.x.org/pub/DOCS/registry 2001/06/01
 677
 678 ;; Name                                            Reference
 679 ;; ----                                            ---------
 680 ;; "DEC"                                           [27]
 681 ;;         registry prefix
 682 ;; "DEC.CNS11643.1986-2"                           [53]
 683 ;;         CNS11643 2-plane using the encoding
 684 ;;         suggested in that standard
 685 ;; "DEC.DTSCS.1990-2"                              [54]
 686 ;;         DEC Taiwan Supplemental Character Set
 687 ;; "fujitsu.u90x01.1991-0"                         [87]
 688 ;; "fujitsu.u90x03.1991-0"                         [87]
 689 ;; "GB2312.1980-0"                                 [39],[12]
 690 ;;         China (PRC) Hanzi, GL encoding
 691 ;; "GB2312.1980-1"                                 [39]
 692 ;;         (deprecated)
 693 ;;         China (PRC) Hanzi, GR encoding
 694 ;; "HP-Arabic8"                                    [36]
 695 ;;         HPARABIC8 8-bit character set
 696 ;; "HP-East8"                                      [36]
 697 ;;         HPEAST8 8-bit character set
 698 ;; "HP-Greek8"                                     [36]
 699 ;;         HPGREEK8 8-bit character set
 700 ;; "HP-Hebrew8"                                    [36]
 701 ;;         HPHEBREW8 8-bit character set
 702 ;; "HP-Japanese15"                                 [36]
 703 ;;         HPJAPAN15 15-bit character set,
 704 ;;         modified from industry de facto
 705 ;;         standard Shift-JIS
 706 ;; "HP-Kana8"                                      [36]
 707 ;;         HPKANA8 8-bit character set
 708 ;; "HP-Korean15"                                   [36]
 709 ;;         HPKOREAN15 15-bit character set
 710 ;; "HP-Roman8"                                     [36]
 711 ;;         HPROMAN8 8-bit character set
 712 ;; "HP-SChinese15"                                 [36]
 713 ;;         HPSCHINA15 15-bit character set for
 714 ;;         support of Simplified Chinese
 715 ;; "HP-TChinese15"                                 [36]
 716 ;;         HPTCHINA15 15-bit character set for
 717 ;;         support of Traditional Chinese
 718 ;; "HP-Turkish8"                                   [36]
 719 ;;         HPTURKISH8 8-bit character set
 720 ;; "IPSYS"                                         [59]
 721 ;;         registry prefix
 722 ;; "IPSYS.IE-1"                                    [59]
 723 ;; "ISO2022"<REG>"-"<ENC>                          [44]
 724 ;; "ISO646.1991-IRV"                               [107]
 725 ;;         ISO 646 International Reference Version
 726 ;; "ISO8859-1"                                     [15],[12]
 727 ;;         ISO Latin alphabet No. 1
 728 ;; "ISO8859-2"                                     [15],[12]
 729 ;;         ISO Latin alphabet No. 2
 730 ;; "ISO8859-3"                                     [15],[12]
 731 ;;         ISO Latin alphabet No. 3
 732 ;; "ISO8859-4"                                     [15],[12]
 733 ;;         ISO Latin alphabet No. 4
 734 ;; "ISO8859-5"                                     [15],[12]
 735 ;;         ISO Latin/Cyrillic alphabet
 736 ;; "ISO8859-6"                                     [15],[12]
 737 ;;         ISO Latin/Arabic alphabet
 738 ;; "ISO8859-7"                                     [15],[12]
 739 ;;         ISO Latin/Greek alphabet
 740 ;; "ISO8859-8"                                     [15],[12]
 741 ;;         ISO Latin/Hebrew alphabet
 742 ;; "ISO8859-9"                                     [15],[12]
 743 ;;         ISO Latin alphabet No. 5
 744 ;; "ISO8859-10"                                    [15],[12]
 745 ;;         ISO Latin alphabet No. 6
 746 ;; "ISO8859-13"                                    [15],[12]
 747 ;;         ISO Latin alphabet No. 7
 748 ;; "ISO8859-14"                                    [15],[12]
 749 ;;         ISO Latin alphabet No. 8
 750 ;; "ISO8859-15"                                    [15],[12]
 751 ;;         ISO Latin alphabet No. 9
 752 ;; "FCD8859-15"                                    [7]
 753 ;;         (deprecated)
 754 ;;         ISO Latin alphabet No. 9, Final Committee Draft
 755 ;; "ISO10646-1"                                    [133]
 756 ;;         Unicode Universal Multiple-Octet Coded Character Set
 757 ;; "ISO10646-MES"                                  [133]
 758 ;;         (deprecated)
 759 ;;         Unicode Minimum European Subset
 760 ;; "JISX0201.1976-0"                               [38],[12]
 761 ;;         8-Bit Alphanumeric-Katakana Code
 762 ;; "JISX0208.1983-0"                               [40],[12]
 763 ;;         Japanese Graphic Character Set,
 764 ;;         GL encoding
 765 ;; "JISX0208.1990-0"                               [71]
 766 ;;         Japanese Graphic Character Set,
 767 ;;         GL encoding
 768 ;; "JISX0208.1983-1"                               [40]
 769 ;;         (deprecated)
 770 ;;         Japanese Graphic Character Set,
 771 ;;         GR encoding
 772 ;; "JISX0212.1990-0"                               [72]
 773 ;;         Supplementary Japanese Graphic Character Set,
 774 ;;         GL encoding
 775 ;; "KOI8-R"                                        [119]
 776 ;;         Cyrillic alphabet
 777 ;; "KSC5601.1987-0"                                [41],[12]
 778 ;;         Korean Graphic Character Set,
 779 ;;         GL encoding
 780 ;; "KSC5601.1987-1"                                [41]
 781 ;;         (deprecated)
 782 ;;         Korean Graphic Character Set,
 783 ;;         GR encoding
 784 ;; "omron_CNS11643-0"                              [45]
 785 ;; "omron_CNS11643-1"                              [45]
 786 ;; "omron_BIG5-0"                                  [45]
 787 ;; "omron_BIG5-1"                                  [45]
 788 ;; "wn.tamil.1993"                                 [103]
 789
 790 (defun set-font-encoding (pattern charset)
 791   "Set arguments in `font-encoding-alist' (which see)."
 792   (let ((slot (assoc pattern font-encoding-alist)))
 793     (if slot
 794         (setcdr slot charset)
 795       (setq font-encoding-alist
 796             (cons (cons pattern charset) font-encoding-alist)))))
 797
 798 (defvar x-pixel-size-width-font-regexp)
 799 (defvar vertical-centering-font-regexp)
 800
 801 ;; Setting for suppressing XLoadQueryFont on big fonts.
 802 (setq x-pixel-size-width-font-regexp
 803       (purecopy "gb2312\\|gbk\\|gb18030\\|jisx0208\\|ksc5601\\|cns11643\\|big5"))
 804
 805 ;; These fonts require vertical centering.
 806 (setq vertical-centering-font-regexp
 807       (purecopy "gb2312\\|gbk\\|gb18030\\|jisx0208\\|jisx0212\\|ksc5601\\|cns11643\\|big5"))
 808 (put 'vertical-centering-font-regexp 'standard-value
 809      (list vertical-centering-font-regexp))
 810
 811 ;; CDAC fonts are actually smaller than their design sizes.
 812 (setq face-font-rescale-alist
 813       (list (cons (purecopy "-cdac$")  1.3)))
 814
 815 (defvar x-font-name-charset-alist nil
 816   "This variable has no meaning now.  Just kept for backward compatibility.")
 817
 818 ;;; XLFD (X Logical Font Description) format handler.
 819
 820 ;; Define XLFD's field index numbers.           ; field name
 821 (defconst xlfd-regexp-family-subnum 0)          ; FOUNDRY and FAMILY
 822 (defconst xlfd-regexp-weight-subnum 1)          ; WEIGHT_NAME
 823 (defconst xlfd-regexp-slant-subnum 2)           ; SLANT
 824 (defconst xlfd-regexp-swidth-subnum 3)          ; SETWIDTH_NAME
 825 (defconst xlfd-regexp-adstyle-subnum 4)         ; ADD_STYLE_NAME
 826 (defconst xlfd-regexp-pixelsize-subnum 5)       ; PIXEL_SIZE
 827 (defconst xlfd-regexp-pointsize-subnum 6)       ; POINT_SIZE
 828 (defconst xlfd-regexp-resx-subnum 7)            ; RESOLUTION_X
 829 (defconst xlfd-regexp-resy-subnum 8)            ; RESOLUTION_Y
 830 (defconst xlfd-regexp-spacing-subnum 8)         ; SPACING
 831 (defconst xlfd-regexp-avgwidth-subnum 10)       ; AVERAGE_WIDTH
 832 (defconst xlfd-regexp-registry-subnum 11)       ; REGISTRY and ENCODING
 833
 834 ;; Regular expression matching against a fontname which conforms to
 835 ;; XLFD (X Logical Font Description).  All fields in XLFD should be
 836 ;; not be omitted (but can be a wild card) to be matched.
 837 (defconst xlfd-tight-regexp
 838   "^\
 839 -\\([^-]*-[^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)\
 840 -\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)\
 841 -\\([^-]*\\)-\\([^-]*\\)-\\([^-]*-[^-]*\\)$")
 842
 843 ;; Regular expression matching against a fontname which conforms to
 844 ;; XLFD (X Logical Font Description).  All fields in XLFD from FOUNDRY
 845 ;; to ADSTYLE, REGISTRY, and ENCODING should be not be omitted (but
 846 ;; can be a wild card) to be matched.
 847 (defconst xlfd-style-regexp
 848   "^\
 849 -\\([^-]*-[^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-.*\
 850 -\\([^-]*-[^-]*\\)$")
 851
 852 ;; List of field numbers of XLFD whose values are numeric.
 853 (defconst xlfd-regexp-numeric-subnums
 854   (list xlfd-regexp-pixelsize-subnum    ;5
 855         xlfd-regexp-pointsize-subnum    ;6
 856         xlfd-regexp-resx-subnum         ;7
 857         xlfd-regexp-resy-subnum         ;8
 858         xlfd-regexp-avgwidth-subnum     ;10
 859         ))
 860
 861 (defun x-decompose-font-name (pattern)
 862   "Decompose PATTERN into XLFD fields and return a vector of the fields.
 863 The length of the vector is 12.
 864 The FOUNDRY and FAMILY fields are concatenated and stored in the first
 865 element of the vector.
 866 The REGISTRY and ENCODING fields are concatenated and stored in the last
 867 element of the vector.
 868
 869 Return nil if PATTERN doesn't conform to XLFD."
 870   (if (string-match xlfd-tight-regexp pattern)
 871       (let ((xlfd-fields (make-vector 12 nil)))
 872         (dotimes (i 12)
 873           (aset xlfd-fields i (match-string (1+ i) pattern)))
 874         (dotimes (i 12)
 875           (if (string-match "^[*-]+$" (aref xlfd-fields i))
 876               (aset xlfd-fields i nil)))
 877         xlfd-fields)))
 878
 879 (defun x-compose-font-name (fields &optional _reduce)
 880   "Compose X fontname from FIELDS.
 881 FIELDS is a vector of XLFD fields, of length 12.
 882 If a field is nil, wild-card letter `*' is embedded.
 883 Optional argument REDUCE exists just for backward compatibility,
 884 and is always ignored."
 885   (concat "-" (mapconcat (lambda (x) (or x "*")) fields "-")))
 886
 887
 888 (defun x-must-resolve-font-name (xlfd-fields)
 889   "Like `x-resolve-font-name', but always return a font name.
 890 XLFD-FIELDS is a vector of XLFD (X Logical Font Description) fields.
 891 If no font matching XLFD-FIELDS is available, successively replace
 892 parts of the font name pattern with \"*\" until some font is found.
 893 Value is name of that font."
 894   (let ((ascii-font nil) (index 0))
 895     (while (and (null ascii-font) (<= index xlfd-regexp-registry-subnum))
 896       (let ((pattern (x-compose-font-name xlfd-fields)))
 897         (condition-case nil
 898             (setq ascii-font (x-resolve-font-name pattern))
 899           (error
 900            (message "Warning: no fonts matching `%s' available" pattern)
 901            (aset xlfd-fields index "*")
 902            (setq index (1+ index))))))
 903     (unless ascii-font
 904       (error "No fonts found"))
 905     ascii-font))
 906
 907
 908 (defun x-complement-fontset-spec (default-spec fontlist)
 909   "Complement elements of FONTLIST based on DEFAULT-SPEC.
 910 DEFAULT-SPEC is a font-spec object providing default font properties.
 911 FONTLIST is an alist of script names vs the corresponding font names.
 912
 913 The font names are parsed and unspecified font properties are
 914 given from DEFAULT-SPEC."
 915   (let ((prop-list '(:foundry :family :weight :slant :width :adstyle :size)))
 916     (dolist (elt fontlist)
 917       (let ((spec (font-spec :name (cadr elt))))
 918         (dolist (prop prop-list)
 919           (let ((val (font-get spec prop)))
 920             (or val
 921                 (font-put spec prop (font-get default-spec prop)))))
 922         (setcar (cdr elt) spec)))
 923     fontlist))
 924
 925 (defun fontset-name-p (fontset)
 926   "Return non-nil if FONTSET is valid as fontset name.
 927 A valid fontset name should conform to XLFD (X Logical Font Description)
 928 with \"fontset\" in `<CHARSET_REGISTRY>' field."
 929   (and (string-match xlfd-tight-regexp fontset)
 930        (string= (match-string (1+ xlfd-regexp-registry-subnum) fontset)
 931                 "fontset")))
 932
 933 (declare-function fontset-list "fontset.c" ())
 934
 935 (defun generate-fontset-menu ()
 936   "Return list to be appended to `x-fixed-font-alist'.
 937 Done when `mouse-set-font' is called."
 938   (let (l)
 939     (dolist (fontset (fontset-list))
 940       (or (string-match "fontset-default$" fontset)
 941           (string-match "fontset-auto[0-9]+$" fontset)
 942           (push (list (fontset-plain-name fontset) fontset) l)))
 943     (cons "Fontset"
 944           (sort l #'(lambda (x y) (string< (car x) (car y)))))))
 945
 946 (declare-function query-fontset "fontset.c" (pattern &optional regexpp))
 947
 948 (defun fontset-plain-name (fontset)
 949   "Return a plain and descriptive name of FONTSET."
 950   (if (not (setq fontset (query-fontset fontset)))
 951       (error "Invalid fontset: %s" fontset))
 952   (let ((xlfd-fields (x-decompose-font-name fontset)))
 953     (if xlfd-fields
 954         (let ((family (aref xlfd-fields xlfd-regexp-family-subnum))
 955               (weight (aref xlfd-fields xlfd-regexp-weight-subnum))
 956               (slant  (aref xlfd-fields xlfd-regexp-slant-subnum))
 957               ;(swidth (aref xlfd-fields xlfd-regexp-swidth-subnum))
 958               (size   (aref xlfd-fields xlfd-regexp-pixelsize-subnum))
 959               (nickname (aref xlfd-fields xlfd-regexp-registry-subnum))
 960               name)
 961           (if (not (string-match "^fontset-\\(.*\\)$" nickname))
 962               (setq nickname family)
 963             (setq nickname (match-string 1 nickname)))
 964           (if (and size (> (string-to-number size) 0))
 965               (setq name (format "%s: %s-dot" nickname size))
 966             (setq name nickname))
 967           (and weight
 968                (cond ((string-match "^medium$" weight)
 969                       (setq name (concat name " " "medium")))
 970                      ((string-match "^bold$\\|^demibold$" weight)
 971                       (setq name (concat name " " weight)))))
 972           (and slant
 973                (cond ((string-match "^i$" slant)
 974                       (setq name (concat name " " "italic")))
 975                      ((string-match "^o$" slant)
 976                       (setq name (concat name " " "slant")))
 977                      ((string-match "^ri$" slant)
 978                       (setq name (concat name " " "reverse italic")))
 979                      ((string-match "^ro$" slant)
 980                       (setq name (concat name " " "reverse slant")))))
 981           name)
 982       fontset)))
 983
 984 (defvar charset-script-alist
 985   '((ascii . latin)
 986     (latin-iso8859-1 . latin)
 987     (latin-iso8859-2 . latin)
 988     (latin-iso8859-3 . latin)
 989     (latin-iso8859-4 . latin)
 990     (latin-iso8859-9 . latin)
 991     (latin-iso8859-10 . latin)
 992     (latin-iso8859-13 . latin)
 993     (latin-iso8859-14 . latin)
 994     (latin-iso8859-15 . latin)
 995     (latin-iso8859-16 . latin)
 996     (latin-jisx0201 . latin)
 997     (thai-tis620 . thai)
 998     (cyrillic-iso8859-5 . cyrillic)
 999     (arabic-iso8859-6 . arabic)
1000     (greek-iso8859-7 . latin)
1001     (hebrew-iso8859-8 . latin)
1002     (katakana-jisx0201 . kana)
1003     (chinese-gb2312 . han)
1004     (chinese-gbk . han)
1005     (gb18030-2-byte . han)
1006     (gb18030-4-byte-bmp . han)
1007     (gb18030-4-byte-ext-1 . han)
1008     (gb18030-4-byte-ext-2 . han)
1009     (gb18030-4-byte-smp . han)
1010     (chinese-big5-1 . han)
1011     (chinese-big5-2 . han)
1012     (chinese-cns11643-1 . han)
1013     (chinese-cns11643-2 . han)
1014     (chinese-cns11643-3 . han)
1015     (chinese-cns11643-4 . han)
1016     (chinese-cns11643-5 . han)
1017     (chinese-cns11643-6 . han)
1018     (chinese-cns11643-7 . han)
1019     (japanese-jisx0208 . han)
1020     (japanese-jisx0208-1978 . han)
1021     (japanese-jisx0212 . han)
1022     (japanese-jisx0213-1 . han)
1023     (japanese-jisx0213-2 . han)
1024     (korean-ksc5601 . hangul)
1025     (chinese-sisheng . bopomofo)
1026     (vietnamese-viscii-lower . latin)
1027     (vietnamese-viscii-upper . latin)
1028     (arabic-digit . arabic)
1029     (arabic-1-column . arabic)
1030     (arabic-2-column . arabic)
1031     (indian-is13194 . devanagari)
1032     (indian-glyph . devanagari)
1033     (indian-1-column . devanagari)
1034     (indian-2-column . devanagari)
1035     (tibetan-1-column . tibetan))
1036   "Alist of charsets vs the corresponding most appropriate scripts.
1037
1038 This alist is used by the function `create-fontset-from-fontset-spec'
1039 to map charsets to scripts.")
1040
1041 (defun create-fontset-from-fontset-spec (fontset-spec
1042                                          &optional _style-variant _noerror)
1043   "Create a fontset from fontset specification string FONTSET-SPEC.
1044 FONTSET-SPEC is a string of the format:
1045         FONTSET-NAME,SCRIPT-NAME0:FONT-NAME0,SCRIPT-NAME1:FONT-NAME1, ...
1046 Any number of SPACE, TAB, and NEWLINE can be put before and after commas.
1047
1048 When a frame uses the fontset as the `font' parameter, the frame's
1049 default font name is derived from FONTSET-NAME by substituting
1050 \"iso8859-1\" for the tail part \"fontset-XXX\".  But, if SCRIPT-NAMEn
1051 is \"ascii\", use the corresponding FONT-NAMEn as the default font
1052 name.
1053
1054 Optional 2nd and 3rd arguments exist just for backward compatibility,
1055 and are ignored.
1056
1057 It returns a name of the created fontset.
1058
1059 For backward compatibility, SCRIPT-NAME may be a charset name, in
1060 which case, the corresponding script is decided by the variable
1061 `charset-script-alist' (which see)."
1062   (or (string-match "^[^,]+" fontset-spec)
1063       (error "Invalid fontset spec: %s" fontset-spec))
1064   (let ((idx (match-end 0))
1065         (name (match-string 0 fontset-spec))
1066         default-spec target script fontlist)
1067     (or (string-match xlfd-tight-regexp name)
1068         (error "Fontset name \"%s\" not conforming to XLFD" name))
1069     (setq default-spec (font-spec :name name))
1070     ;; At first, extract pairs of charset and fontname from FONTSET-SPEC.
1071     (while (string-match "[, \t\n]*\\([^:]+\\):[ \t]*\\([^,]+\\)"
1072                          fontset-spec idx)
1073       (setq idx (match-end 0))
1074       (setq target (intern (match-string 1 fontset-spec)))
1075       (cond ((or (eq target 'ascii)
1076                  (memq target (char-table-extra-slot char-script-table 0)))
1077              (push (list target (match-string 2 fontset-spec)) fontlist))
1078             ((setq script (cdr (assq target charset-script-alist)))
1079              (push (list script (match-string 2 fontset-spec)) fontlist))
1080             ((charsetp target)
1081              (push (list target (match-string 2 fontset-spec)) fontlist))))
1082
1083     ;; Complement FONTLIST.
1084     (setq fontlist (x-complement-fontset-spec default-spec fontlist))
1085
1086     ;; Create a fontset.
1087     (new-fontset name (nreverse fontlist))))
1088
1089 (defun create-fontset-from-ascii-font (font &optional resolved-font
1090                                             fontset-name)
1091   "Create a fontset from an ASCII font FONT.
1092
1093 Optional 2nd arg RESOLVED-FONT is a resolved name of FONT.
1094 If omitted, `x-resolve-font-name' is called to get the resolved name.
1095 At this time, if FONT is not available, an error is signaled.
1096
1097 Optional 3rd arg FONTSET-NAME is a string to be used in
1098 `<CHARSET_ENCODING>' fields of a new fontset name.  If it is omitted,
1099 an appropriate name is generated automatically.
1100
1101 It returns a name of the created fontset."
1102   (setq font (downcase font))
1103   (setq resolved-font
1104         (downcase (or resolved-font (x-resolve-font-name font))))
1105   (let ((xlfd (x-decompose-font-name resolved-font))
1106         fontset)
1107     (if fontset-name
1108         (setq fontset-name (downcase fontset-name))
1109       (if (query-fontset "fontset-startup")
1110           (setq fontset-name
1111                 (subst-char-in-string
1112                  ?- ?_ (aref xlfd xlfd-regexp-registry-subnum) t))
1113         (setq fontset-name "startup")))
1114     (aset xlfd xlfd-regexp-registry-subnum
1115           (format "fontset-%s" fontset-name))
1116     (setq fontset (x-compose-font-name xlfd))
1117     (or (query-fontset fontset)
1118         (create-fontset-from-fontset-spec (concat fontset ", ascii:" font)))))
1119
1120 \f
1121 ;; Create standard fontset from 16 dots fonts which are the most widely
1122 ;; installed fonts.  Fonts for Chinese-GB, Korean, and Chinese-CNS are
1123 ;; specified here because FAMILY of those fonts are not "fixed" in
1124 ;; many cases.
1125 (defvar standard-fontset-spec
1126   (purecopy "-*-fixed-medium-r-normal-*-16-*-*-*-*-*-fontset-standard")
1127   "String of fontset spec of the standard fontset.
1128 You have the biggest chance to display international characters
1129 with correct glyphs by using the standard fontset.
1130 See the documentation of `create-fontset-from-fontset-spec' for the format.")
1131
1132
1133 ;; Create fontsets from X resources of the name `fontset-N (class
1134 ;; Fontset-N)' where N is integer 0, 1, ...
1135 ;; The values of the resources the string of the same format as
1136 ;; `standard-fontset-spec'.
1137
1138 (declare-function x-get-resource "frame.c"
1139                   (attribute class &optional component subclass))
1140
1141 (defun create-fontset-from-x-resource ()
1142   (let ((idx 0)
1143         fontset-spec)
1144     (while (setq fontset-spec (x-get-resource (format "fontset-%d" idx)
1145                                               (format "Fontset-%d" idx)))
1146       (condition-case nil
1147           (create-fontset-from-fontset-spec fontset-spec t)
1148         (error (display-warning
1149                 'initialization
1150                 (format "Fontset-%d: invalid specification in X resource" idx)
1151                 :warning)))
1152       (setq idx (1+ idx)))))
1153
1154 ;;
1155 (provide 'fontset)
1156
1157 ;;; fontset.el ends here