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

   1 ;;; fontset.el --- commands for handling fontset
   2
   3 ;; Copyright (C) 1997-2015 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         (vai #xA500)
 157         (arabic #x628)
 158         (syriac #x710)
 159         (thaana #x78C)
 160         (devanagari #x915)
 161         (bengali #x995)
 162         (gurmukhi #xA15)
 163         (gujarati #xA95)
 164         (oriya #xB15)
 165         (tamil #xB95)
 166         (telugu #xC15)
 167         (kannada #xC95)
 168         (malayalam #xD15)
 169         (sinhala #xD95)
 170         (thai #xE17)
 171         (lao #xEA5)
 172         (tibetan #xF40)
 173         (burmese #x1000)
 174         (georgian #x10D3)
 175         (ethiopic #x1208)
 176         (cherokee #x13B6)
 177         (canadian-aboriginal #x14C0)
 178         (ogham #x168F)
 179         (runic #x16A0)
 180         (khmer #x1780)
 181         (mongolian #x1826)
 182         (symbol . [#x201C #x2200 #x2500])
 183         (braille #x2800)
 184         (ideographic-description #x2FF0)
 185         (cjk-misc #x300E)
 186         (kana #x304B)
 187         (bopomofo #x3105)
 188         (kanbun #x319D)
 189         (han #x5B57)
 190         (yi #xA288)
 191         (cham #xAA00)
 192         (tai-viet #xAA80)
 193         (hangul #xAC00)
 194         (linear-b #x10000)
 195         (aegean-number #x10100)
 196         (ancient-greek-number #x10140)
 197         (ancient-symbol #x10190)
 198         (phaistos-disc #x101D0)
 199         (lycian #x10280)
 200         (carian #x102A0)
 201         (old-italic #x10300)
 202         (ugaritic #x10380)
 203         (old-permic #x10350)
 204         (old-persian #x103A0)
 205         (deseret #x10400)
 206         (shavian #x10450)
 207         (osmanya #x10480)
 208         (elbasan #x10500)
 209         (caucasian-albanian #x10530)
 210         (linear-a #x10600)
 211         (cypriot-syllabary #x10800)
 212         (palmyrene #x10860)
 213         (nabataean #x10880)
 214         (phoenician #x10900)
 215         (lydian #x10920)
 216         (kharoshthi #x10A00)
 217         (manichaean #x10AC0)
 218         (mahajani #x11150)
 219         (sinhala-archaic-number #x111E1)
 220         (khojki #x11200)
 221         (khudawadi #x112B0)
 222         (grantha #x11305)
 223         (tirhuta #x11481)
 224         (siddham #x11580)
 225         (modi #x11600)
 226         (takri #x11680)
 227         (warang-citi #x118A1)
 228         (pau-cin-hau #x11AC0)
 229         (cuneiform #x12000)
 230         (cuneiform-numbers-and-punctuation #x12400)
 231         (mro #x16A40)
 232         (bassa-vah #x16AD0)
 233         (pahawh-hmong #x16B11)
 234         (duployan-shorthand #x1BC20)
 235         (byzantine-musical-symbol #x1D000)
 236         (musical-symbol #x1D100)
 237         (ancient-greek-musical-notation #x1D200)
 238         (tai-xuan-jing-symbol #x1D300)
 239         (counting-rod-numeral #x1D360)
 240         (mende-kikakui #x1E810)
 241         (mahjong-tile #x1F000)
 242         (domino-tile #x1F030)))
 243
 244 (defvar otf-script-alist)
 245
 246 ;; The below was synchronized with the latest Jan 3, 2013 version of
 247 ;; https://www.microsoft.com/typography/otspec/scripttags.htm.
 248 (setq otf-script-alist
 249       '((arab . arabic)
 250         (armi . aramaic)
 251         (armn . armenian)
 252         (avst . avestan)
 253         (bali . balinese)
 254         (bamu . bamum)
 255         (batk . batak)
 256         (bng2 . bengali)
 257         (beng . bengali)
 258         (bopo . bopomofo)
 259         (brai . braille)
 260         (brah . brahmi)
 261         (bugi . buginese)
 262         (buhd . buhid)
 263         (byzm . byzantine-musical-symbol)
 264         (cans . canadian-aboriginal)
 265         (cari . carian)
 266         (cakm . chakma)
 267         (cham . cham)
 268         (cher . cherokee)
 269         (copt . coptic)
 270         (xsux . cuneiform)
 271         (cprt . cypriot)
 272         (cyrl . cyrillic)
 273         (dsrt . deseret)
 274         (deva . devanagari)
 275         (dev2 . devanagari)
 276         (egyp . egyptian)
 277         (ethi . ethiopic)
 278         (geor . georgian)
 279         (glag . glagolitic)
 280         (goth . gothic)
 281         (grek . greek)
 282         (gujr . gujarati)
 283         (gjr2 . gujarati)
 284         (guru . gurmukhi)
 285         (gur2 . gurmukhi)
 286         (hani . han)
 287         (hang . hangul)
 288         (jamo . hangul)
 289         (hano . hanunoo)
 290         (hebr . hebrew)
 291         (phli . inscriptional-pahlavi)
 292         (prti . inscriptional-parthian)
 293         (java . javanese)
 294         (kthi . kaithi)
 295         (kana . kana)   ; Hiragana
 296         (knda . kannada)
 297         (knd2 . kannada)
 298         (kali . kayah-li)
 299         (khar . kharoshthi)
 300         (khmr . khmer)
 301         (lao\  . lao)
 302         (latn . latin)
 303         (lepc . lepcha)
 304         (limb . limbu)
 305         (linb . linear_b)
 306         (mlym . malayalam)
 307         (mlm2 . malayalam)
 308         (mand . mandaic)
 309         (math . mathematical)
 310         (mtei . meetei-mayek)
 311         (merc . meroitic)
 312         (mero . meroitic)
 313         (mong . mongolian)
 314         (musc . musical-symbol)
 315         (mymr . burmese)
 316         (nko\  . nko)
 317         (ogam . ogham)
 318         (olck . ol-chiki)
 319         (ital . old_italic)
 320         (xpeo . old_persian)
 321         (sarb . old-south-arabian)
 322         (orkh . old-turkic)
 323         (orya . oriya)
 324         (ory2 . oriya)
 325         (osma . osmanya)
 326         (phag . phags-pa)
 327         (phnx . phoenician)
 328         (rjng . rejang)
 329         (runr . runic)
 330         (samr . samaritan)
 331         (saur . saurashtra)
 332         (shrd . sharada)
 333         (shaw . shavian)
 334         (sinh . sinhala)
 335         (sora . sora-sompeng)
 336         (sund . sundanese)
 337         (sylo . syloti_nagri)
 338         (syrc . syriac)
 339         (tglg . tagalog)
 340         (tagb . tagbanwa)
 341         (tale . tai_le)
 342         (talu . tai-lue)
 343         (lana . tai-tham)
 344         (tavt . tai-viet)
 345         (takr . takri)
 346         (taml . tamil)
 347         (tml2 . tamil)
 348         (telu . telugu)
 349         (thaa . thaana)
 350         (thai . thai)
 351         (tibt . tibetan)
 352         (tfng . tifinagh)
 353         (ugar . ugaritic)
 354         (vai\  . vai)
 355         (yi\ \   . yi)))
 356
 357 ;; Set standard fontname specification of characters in the default
 358 ;; fontset to find an appropriate font for each script/charset.  The
 359 ;; specification has the form ((SCRIPT FONT-SPEC ...) ...), where
 360 ;; FONT-SPEC is:
 361 ;;      a cons (FAMILY . REGISTRY),
 362 ;;      or a string FONT-NAME,
 363 ;;      or an object created by `font-spec'.
 364 ;;
 365 ;; FAMILY may be nil, in which case, the corresponding name of
 366 ;; default face is used.  If REGISTRY contains a character `-', the
 367 ;; string before that is embedded in `CHARSET_REGISTRY' field, and the
 368 ;; string after that is embedded in `CHARSET_ENCODING' field.  If it
 369 ;; does not contain `-', the whole string is embedded in
 370 ;; `CHARSET_REGISTRY' field, and a wild card character `*' is embedded
 371 ;; in `CHARSET_ENCODING' field.
 372 ;;
 373 ;; SCRIPT is a symbol that appears as an element of the char table
 374 ;; `char-script-table'.  SCRIPT may be a charset specifying the range
 375 ;; of characters.
 376
 377 (declare-function new-fontset "fontset.c" (name fontlist))
 378 (declare-function set-fontset-font "fontset.c"
 379                   (name target font-spec &optional frame add))
 380
 381 (eval-when-compile
 382
 383 ;; Build data to initialize the default fontset at compile time to
 384 ;; avoid loading charsets that won't be necessary at runtime.
 385
 386 ;; The value is (CJK-REGISTRY-VECTOR TARGET-SPEC ...), where
 387 ;; CJK-REGISTRY-VECTOR is ["JISX0208.1983-0" "GB2312.1980-0" ...],
 388 ;; TARGET-SPEC is (TARGET . BITMASK) or (TARGET SPEC ...),
 389 ;; TARGET is CHAR or (FROM-CHAR . TO-CHAR),
 390 ;; BITMASK is a bitmask of indices to CJK-REGISTRY-VECTOR,
 391 ;; SPEC is a list of arguments to font-spec.
 392
 393 (defmacro build-default-fontset-data ()
 394   (let* (;;       CHARSET-REGISTRY  CHARSET            FROM-CODE TO-CODE
 395          (cjk '(("JISX0208.1983-0" japanese-jisx0208  #x2121    #x287E)
 396                 ("GB2312.1980-0"   chinese-gb2312     #x2121    #x297E)
 397                 ("BIG5-0"          big5               #xA140    #xA3FE)
 398                 ("CNS11643.1992-1" chinese-cns11643-1 #x2121    #x427E)
 399                 ("KSC5601.1987-0"  korean-ksc5601     #x2121    #x2C7E)))
 400          (scripts '((tibetan
 401                      (:registry "iso10646-1" :otf (tibt nil (ccmp blws abvs)))
 402                      (:family "mtib" :registry "iso10646-1")
 403                      (:registry "muletibetan-2"))
 404                     (ethiopic
 405                      (:registry "iso10646-1" :script ethiopic)
 406                      (:registry "ethiopic-unicode"))
 407                     (phonetic
 408                      (:registry "iso10646-1" :script phonetic)
 409                      (:registry "MuleIPA-1")
 410                      (:registry "iso10646-1"))))
 411          (cjk-table (make-char-table nil))
 412          (script-coverage
 413           #'(lambda (script)
 414               (let ((coverage))
 415                 (map-char-table
 416                  #'(lambda (range val)
 417                      (when (eq val script)
 418                        (if (consp range)
 419                            (setq range (cons (car range) (cdr range))))
 420                        (push range coverage)))
 421                  char-script-table)
 422                 coverage)))
 423          (data (list (vconcat (mapcar 'car cjk))))
 424          (i 0))
 425     (dolist (elt cjk)
 426       (let ((mask (lsh 1 i)))
 427         (map-charset-chars
 428          #'(lambda (range _arg)
 429              (let ((from (car range)) (to (cdr range)))
 430                (if (< to #x110000)
 431                    (while (<= from to)
 432                      (or (memq (aref char-script-table from)
 433                                '(kana hangul han cjk-misc))
 434                          (aset cjk-table from
 435                                (logior (or (aref cjk-table from) 0) mask)))
 436                      (setq from (1+ from))))))
 437          (nth 1 elt) nil (nth 2 elt) (nth 3 elt)))
 438       (setq i (1+ i)))
 439     (map-char-table
 440      #'(lambda (range val)
 441          (if (consp range)
 442              (setq range (cons (car range) (cdr range))))
 443          (push (cons range val) data))
 444      cjk-table)
 445     (dolist (script scripts)
 446       (dolist (range (funcall script-coverage (car script)))
 447         (push (cons range (cdr script)) data)))
 448     `(quote ,(nreverse data))))
 449 )
 450
 451 (defun setup-default-fontset ()
 452   "Setup the default fontset."
 453   (new-fontset
 454    "fontset-default"
 455    `(;; for each script
 456      (latin (nil . "ISO8859-1")
 457             (nil . "ISO8859-2")
 458             (nil . "ISO8859-3")
 459             (nil . "ISO8859-4")
 460             (nil . "ISO8859-9")
 461             (nil . "ISO8859-10")
 462             (nil . "ISO8859-13")
 463             (nil . "ISO8859-14")
 464             (nil . "ISO8859-15")
 465             (nil . "ISO8859-16")
 466             (nil . "VISCII1.1-1")
 467             ,(font-spec :registry "iso10646-1" :script 'latin))
 468
 469      (thai  ,(font-spec :registry "iso10646-1" :otf '(thai nil nil (mark)))
 470             ,(font-spec :registry "iso10646-1" :script 'thai)
 471             (nil . "TIS620*")
 472             (nil . "ISO8859-11"))
 473
 474      (devanagari ,(font-spec :registry "iso10646-1" :otf '(deva nil (rphf)))
 475                  (nil . "iso10646.indian-1"))
 476      (bengali ,(font-spec :registry "iso10646-1" :otf '(beng nil (rphf))))
 477      (gurmukhi ,(font-spec :registry "iso10646-1" :otf '(guru nil (blwf))))
 478      (gujarati ,(font-spec :registry "iso10646-1" :otf '(gujr nil (rphf))))
 479      (oriya ,(font-spec :registry "iso10646-1" :otf '(orya nil (rphf))))
 480      (tamil ,(font-spec :registry "iso10646-1" :otf '(taml nil (akhn))))
 481      (telugu ,(font-spec :registry "iso10646-1" :otf '(telu nil (blwf))))
 482      (kannada ,(font-spec :registry "iso10646-1" :otf '(knda nil (rphf))))
 483      (sinhala ,(font-spec :registry "iso10646-1" :otf '(sinh nil (akhn))))
 484      (malayalam ,(font-spec :registry "iso10646-1" :otf '(mlym nil (akhn))))
 485
 486      (burmese ,(font-spec :registry "iso10646-1" :otf '(mymr nil nil))
 487               ,(font-spec :registry "iso10646-1" :script 'burmese))
 488
 489      (lao ,(font-spec :registry "iso10646-1" :otf '(lao\  nil nil (mark)))
 490           ,(font-spec :registry "iso10646-1" :script 'lao)
 491           (nil . "MuleLao-1"))
 492
 493      (tai-viet ("TaiViet" . "iso10646-1"))
 494
 495      (greek ,(font-spec :registry "iso10646-1" :script 'greek)
 496             (nil . "ISO8859-7"))
 497
 498      (cyrillic ,(font-spec :registry "iso10646-1" :script 'cyrillic)
 499                (nil . "ISO8859-5")
 500                (nil . "microsoft-cp1251")
 501                (nil . "koi8-r"))
 502
 503      (arabic ,(font-spec :registry "iso10646-1"
 504                          :otf '(arab nil (init medi fina liga)))
 505              (nil . "MuleArabic-0")
 506              (nil . "MuleArabic-1")
 507              (nil . "MuleArabic-2")
 508              (nil . "ISO8859-6"))
 509
 510      (hebrew ,(font-spec :registry "iso10646-1" :script 'hebrew)
 511              (nil . "ISO8859-8"))
 512
 513      (khmer ,(font-spec :registry "iso10646-1" :otf '(khmr nil (pres))))
 514
 515      (kana (nil . "JISX0208*")
 516            (nil . "GB2312.1980-0")
 517            (nil . "KSC5601.1987*")
 518            (nil . "JISX0201*")
 519            (nil . "JISX0213.2000-1")
 520            (nil . "JISX0213.2004-1")
 521            ,(font-spec :registry "iso10646-1" :script 'kana))
 522
 523      (bopomofo ,(font-spec :registry "iso10646-1" :script 'bopomofo)
 524                (nil . "sisheng_cwnn-0"))
 525
 526      (han (nil . "GB2312.1980-0")
 527           (nil . "JISX0208*")
 528           (nil . "JISX0212*")
 529           (nil . "big5*")
 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 . "gbk-0")
 539           (nil . "gb18030")
 540           (nil . "JISX0213.2000-1")
 541           (nil . "JISX0213.2000-2")
 542           (nil . "JISX0213.2004-1")
 543           ,(font-spec :registry "iso10646-1" :lang 'ja)
 544           ,(font-spec :registry "iso10646-1" :lang 'zh))
 545
 546      (cjk-misc (nil . "GB2312.1980-0")
 547                (nil . "JISX0208*")
 548                (nil . "JISX0212*")
 549                (nil . "big5*")
 550                (nil . "KSC5601.1987*")
 551                (nil . "CNS11643.1992-1")
 552                (nil . "CNS11643.1992-2")
 553                (nil . "CNS11643.1992-3")
 554                (nil . "CNS11643.1992-4")
 555                (nil . "CNS11643.1992-5")
 556                (nil . "CNS11643.1992-6")
 557                (nil . "CNS11643.1992-7")
 558                (nil . "gbk-0")
 559                (nil . "gb18030")
 560                (nil . "JISX0213.2000-1")
 561                (nil . "JISX0213.2000-2")
 562                ,(font-spec :registry "iso10646-1" :lang 'ja)
 563                ,(font-spec :registry "iso10646-1" :lang 'zh))
 564
 565      (hangul (nil . "KSC5601.1987-0")
 566              ,(font-spec :registry "iso10646-1" :lang 'ko))
 567
 568      ;; for each charset
 569      (ascii (nil . "ISO8859-1"))
 570      (arabic-digit ("*" . "MuleArabic-0"))
 571      (arabic-1-column ("*" . "MuleArabic-1"))
 572      (arabic-2-column ("*" . "MuleArabic-2"))
 573      (indian-is13194 (nil . "is13194-devanagari"))
 574      (indian-1-column ("*" . "muleindian-2"))
 575      ;; Indian CDAC
 576      (devanagari-cdac (nil . "Devanagari-CDAC"))
 577      (sanskrit-cdac (nil . "Sanskrit-CDAC"))
 578      (bengali-cdac (nil . "Bengali-CDAC"))
 579      (assamese-cdac (nil . "Assamese-CDAC"))
 580      (punjabi-cdac (nil . "Punjabi-CDAC"))
 581      (gujarati-cdac (nil . "Gujarati-CDAC"))
 582      (oriya-cdac (nil . "Oriya-CDAC"))
 583      (tamil-cdac (nil . "Tamil-CDAC"))
 584      (telugu-cdac (nil . "Telugu-CDAC"))
 585      (kannada-cdac (nil . "Kannada-CDAC"))
 586      (malayalam-cdac (nil . "Malayalam-CDAC"))
 587      ;; Indian AKRUTI
 588      (devanagari-akruti (nil . "Devanagari-Akruti"))
 589      (bengali-akruti (nil . "Bengali-Akruti"))
 590      (punjabi-akruti (nil . "Punjabi-Akruti"))
 591      (gujarati-akruti (nil . "Gujarati-Akruti"))
 592      (oriya-akruti (nil . "Oriya-Akruti"))
 593      (tamil-akruti (nil . "Tamil-Akruti"))
 594      (telugu-akruti (nil . "Telugu-Akruti"))
 595      (kannada-akruti (nil . "Kannada-Akruti"))
 596      (malayalam-akruti (nil . "Malayalam-Akruti"))
 597
 598      ;; Fallback fonts
 599      (nil (nil . "gb2312.1980")
 600           (nil . "gbk-0")
 601           (nil . "gb18030")
 602           (nil . "jisx0208")
 603           (nil . "ksc5601.1987")
 604           (nil . "CNS11643.1992-1")
 605           (nil . "CNS11643.1992-2")
 606           (nil . "CNS11643.1992-3")
 607           (nil . "CNS11643.1992-4")
 608           (nil . "CNS11643.1992-5")
 609           (nil . "CNS11643.1992-6")
 610           (nil . "CNS11643.1992-7")
 611           (nil . "big5")
 612           (nil . "jisx0213.2000-1")
 613           (nil . "jisx0213.2004-1")
 614           (nil . "jisx0212"))
 615      ))
 616
 617   ;; For simple scripts
 618   (dolist (script '(phonetic
 619                     armenian
 620                     syriac
 621                     thaana
 622                     georgian
 623                     cherokee
 624                     canadian-aboriginal
 625                     ogham
 626                     runic
 627                     symbol
 628                     braille
 629                     yi
 630                     aegean-number
 631                     ancient-greek-number
 632                     ancient-symbol
 633                     phaistos-disc
 634                     lycian
 635                     carian
 636                     old-italic
 637                     ugaritic
 638                     old-persian
 639                     deseret
 640                     shavian
 641                     osmanya
 642                     cypriot-syllabary
 643                     phoenician
 644                     lydian
 645                     kharoshthi
 646                     cuneiform
 647                     cuneiform-numbers-and-punctuation
 648                     byzantine-musical-symbol
 649                     musical-symbol
 650                     ancient-greek-musical-notation
 651                     tai-xuan-jing-symbol
 652                     counting-rod-numeral
 653                     mahjong-tile
 654                     domino-tile))
 655     (set-fontset-font "fontset-default"
 656                       script (font-spec :registry "iso10646-1" :script script)
 657                       nil 'append))
 658
 659   ;; Special settings for `MATHEMATICAL (U+1D400..U+1D7FF)'.
 660   (dolist (math-subgroup '((#x1D400 #x1D433 mathematical-bold)
 661                            (#x1D434 #x1D467 mathematical-italic)
 662                            (#x1D468 #x1D49B mathematical-bold-italic)
 663                            (#x1D49C #x1D4CF mathematical-script)
 664                            (#x1D4D0 #x1D503 mathematical-bold-script)
 665                            (#x1D504 #x1D537 mathematical-fraktur)
 666                            (#x1D538 #x1D56B mathematical-double-struck)
 667                            (#x1D56C #x1D59F mathematical-bold-fraktur)
 668                            (#x1D5A0 #x1D5D3 mathematical-sans-serif)
 669                            (#x1D5D4 #x1D607 mathematical-sans-serif-bold)
 670                            (#x1D608 #x1D63B mathematical-sans-serif-italic)
 671                            (#x1D63C #x1D66F mathematical-sans-serif-bold-italic)
 672                            (#x1D670 #x1D6A3 mathematical-monospace)
 673                            (#x1D6A4 #x1D6A5 mathematical-italic)
 674                            (#x1D6A8 #x1D6E1 mathematical-bold)
 675                            (#x1D6E2 #x1D71B mathematical-italic)
 676                            (#x1D71C #x1D755 mathematical-bold-italic)
 677                            (#x1D756 #x1D78F mathematical-sans-serif-bold)
 678                            (#x1D790 #x1D7C9 mathematical-sans-serif-bold-italic)
 679                            (#x1D7CA #x1D7D7 mathematical-bold)
 680                            (#x1D7D8 #x1D7E1 mathematical-double-struck)
 681                            (#x1D7E2 #x1D7EB mathematical-sans-serif)
 682                            (#x1D7EC #x1D7F5 mathematical-sans-serif-bold)
 683                            (#x1D7F6 #x1D7FF mathematical-monospace)))
 684     (let ((slot (assq (nth 2 math-subgroup) script-representative-chars)))
 685       (if slot
 686           (if (vectorp (cdr slot))
 687               (setcdr slot (vconcat (cdr slot) (vector (car math-subgroup))))
 688             (setcdr slot (vector (cadr slot) (car math-subgroup))))
 689         (setq slot (list (nth 2 math-subgroup) (car math-subgroup)))
 690         (nconc script-representative-chars (list slot))))
 691     (set-fontset-font
 692      "fontset-default"
 693      (cons (car math-subgroup) (nth 1 math-subgroup))
 694      (font-spec :registry "iso10646-1" :script (nth 2 math-subgroup))))
 695
 696   ;; Special setup for various symbols and punctuation characters
 697   ;; covered well by Symbola, excluding those covered well by popular
 698   ;; Unicode fonts.  We exclude the latter because users don't like us
 699   ;; invading on their font setups where they have good support from
 700   ;; other fonts.
 701   (dolist (symbol-subgroup
 702            '((#x2000 . #x2012)  ;; General Punctuation
 703              (#x2015 . #x2017)
 704              #x201F
 705              (#x2023 . #x202F)
 706              (#x2031 . #x2038)
 707              (#x203B . #x206F)
 708              (#x2070 . #x209F)  ;; Superscripts and Subscripts
 709              (#x20B6 . #x20CF)  ;; Currency Symbols
 710              (#x2100 . #x2121)  ;; Letterlike Symbols
 711              (#x2123 . #x214F)
 712              (#x2150 . #x215A)  ;; Number Forms
 713              (#x215F . #x218F)
 714              (#x2194 . #x21FF)  ;; Arrows
 715              (#x2200 . #x2211)  ;; Mathematical Operators
 716              (#x2213 . #x2247)
 717              (#x2249 . #x225F)
 718              (#x2261 . #x2263)
 719              (#x2266 . #x22FF)
 720              (#x2300 . #x2301)  ;; Miscellaneous Technical
 721              (#x2303 . #x230F)
 722              (#x2311 . #x231F)
 723              (#x2322 . #x23FF)
 724              (#x2400 . #x243F)  ;; Control Pictures
 725              (#x2440 . #x245F)  ;; Optical Char Recognition
 726              (#x2460 . #x24FF)  ;; Enclosed Alphanumerics
 727              (#x25A0 . #x25FF)  ;; Geometric Shapes
 728              (#x2600 . #x265F)  ;; Miscellaneous Symbols
 729              (#x2661 . #x2662)
 730              #x2664
 731              (#x2667 . #x2669)
 732              (#x266C . #x26FF)
 733              (#x2700 . #x27bF)  ;; Dingbats
 734              (#x27C0 . #x27EF)  ;; Misc Mathematical Symbols-A
 735              (#x27F0 . #x27FF)  ;; Supplemental Arrows-A
 736              (#x2900 . #x297F)  ;; Supplemental Arrows-B
 737              (#x2980 . #x29FF)  ;; Misc Mathematical Symbols-B
 738              (#x2A00 . #x2AFF)  ;; Suppl. Math Operators
 739              (#x2B00 . #x2BFF)  ;; Misc Symbols and Arrows
 740              (#x2E00 . #x2E7F)  ;; Supplemental Punctuation
 741              (#x4DC0 . #x4DFF)  ;; Yijing Hexagram Symbols
 742              (#xFE10 . #xFE1F)  ;; Vertical Forms
 743              (#x10100 . #x1013F)        ;; Aegean Numbers
 744              (#x102E0 . #x102FF)        ;; Coptic Epact Numbers
 745              (#x1D000 . #x1D0FF)        ;; Byzantine Musical Symbols
 746              (#x1D200 . #x1D24F)        ;; Ancient Greek Musical Notation
 747              (#x1F0A0 . #x1F0FF)        ;; Playing Cards
 748              (#x1F100 . #x1F1FF)        ;; Enclosed Alphanumeric Suppl
 749              (#x1F300 . #x1F5FF)        ;; Misc Symbols and Pictographs
 750              (#x1F600 . #x1F64F)        ;; Emoticons
 751              (#x1F650 . #x1F67F)        ;; Ornamental Dingbats
 752              (#x1F680 . #x1F6FF)        ;; Transport and Map Symbols
 753              (#x1F700 . #x1F77F)        ;; Alchemical Symbols
 754              (#x1F780 . #x1F7FF)        ;; Geometric Shapes Extended
 755              (#x1F800 . #x1F8FF)))      ;; Supplemental Arrows-C
 756     (set-fontset-font "fontset-default" symbol-subgroup "Symbola" nil 'prepend))
 757   ;; Box Drawing and Block Elements
 758   (set-fontset-font "fontset-default" '(#x2500 . #x259F)
 759                     "FreeMono" nil 'prepend)
 760
 761   ;; Since standard-fontset-spec on X uses fixed-medium font, which
 762   ;; gets mapped to a iso8859-1 variant, we would like to prefer its
 763   ;; iso10646-1 variant for symbols, where the coverage is known to be
 764   ;; good.
 765   (dolist (symbol-subgroup
 766                          '((#x2000 . #x206F)   ;; General Punctuation
 767                            (#x2070 . #x209F)   ;; Superscripts and Subscripts
 768                            (#x20A0 . #x20CF)   ;; Currency Symbols
 769                            (#x2150 . #x218F)   ;; Number Forms
 770                            (#x2190 . #x21FF)   ;; Arrows
 771                            (#x2200 . #x22FF)   ;; Mathematical Operators
 772                            (#x2300 . #x23FF)   ;; Miscellaneous Technical
 773                            (#x2400 . #x243F)   ;; Control Pictures
 774                            (#x2440 . #x245F)   ;; Optical Char Recognition
 775                            (#x2460 . #x24FF)   ;; Enclosed Alphanumerics
 776                            (#x2500 . #x257F)   ;; Box Drawing
 777                            (#x2580 . #x259F)   ;; Block Elements
 778                            (#x25A0 . #x25FF)   ;; Geometric Shapes
 779                            (#x2600 . #x2689)   ;; Miscellaneous Symbols
 780                            (#x2700 . #x27bF)   ;; Dingbats
 781                            (#x27F5 . #x27FF))) ;; Supplemental Arrows-A
 782     (set-fontset-font "fontset-default" symbol-subgroup
 783                       "-*-fixed-medium-*-*-*-*-*-*-*-*-*-iso10646-1"
 784                       nil 'prepend))
 785
 786   ;; Append CJK fonts for characters other than han, kana, cjk-misc.
 787   ;; Append fonts for scripts whose name is also a charset name.
 788   (let* ((data (build-default-fontset-data))
 789          (registries (car data)))
 790     (dolist (target-spec (cdr data))
 791       (let ((target (car target-spec))
 792             (spec (cdr target-spec)))
 793         (if (integerp spec)
 794             (dotimes (i (length registries))
 795               (if (> (logand spec (lsh 1 i)) 0)
 796                   (set-fontset-font "fontset-default" target
 797                                     (cons nil (aref registries i))
 798                                     nil 'append)))
 799         (dolist (args spec)
 800           (set-fontset-font "fontset-default" target
 801                             (apply 'font-spec args) nil 'append))))))
 802
 803   ;; Append Unicode fonts.
 804   ;; This may find fonts with more variants (bold, italic) but which
 805   ;; don't cover many characters.
 806   (set-fontset-font "fontset-default" nil
 807                     '(nil . "iso10646-1") nil 'prepend)
 808   ;; These may find fonts that cover many characters but with fewer
 809   ;; variants.
 810   (set-fontset-font "fontset-default" nil
 811                     '("gnu-unifont" . "iso10646-1") nil 'prepend)
 812   (set-fontset-font "fontset-default" nil
 813                     '("mutt-clearlyu" . "iso10646-1") nil 'prepend)
 814   (set-fontset-font "fontset-default" '(#x20000 . #x2FFFF)
 815                     '(nil . "unicode-sip"))
 816
 817   (set-fontset-font "fontset-default" '(#xE000 . #xF8FF)
 818                     '(nil . "iso10646-1"))
 819   ;; Don't try the fallback fonts even if no suitable font was found
 820   ;; by the above font-spec.
 821   (set-fontset-font "fontset-default" '(#xE000 . #xF8FF) nil nil 'append))
 822
 823 (defun create-default-fontset ()
 824   "Create the default fontset.
 825 Internal use only.  Should be called at startup time."
 826   (condition-case err
 827       (setup-default-fontset)
 828     (error (display-warning
 829             'initialization
 830             (format "Creation of the default fontsets failed: %s" err)
 831             :error))))
 832
 833 ;; These are the registered registries/encodings from
 834 ;; ftp://ftp.x.org/pub/DOCS/registry 2001/06/01
 835
 836 ;; Name                                            Reference
 837 ;; ----                                            ---------
 838 ;; "DEC"                                           [27]
 839 ;;         registry prefix
 840 ;; "DEC.CNS11643.1986-2"                           [53]
 841 ;;         CNS11643 2-plane using the encoding
 842 ;;         suggested in that standard
 843 ;; "DEC.DTSCS.1990-2"                              [54]
 844 ;;         DEC Taiwan Supplemental Character Set
 845 ;; "fujitsu.u90x01.1991-0"                         [87]
 846 ;; "fujitsu.u90x03.1991-0"                         [87]
 847 ;; "GB2312.1980-0"                                 [39],[12]
 848 ;;         China (PRC) Hanzi, GL encoding
 849 ;; "GB2312.1980-1"                                 [39]
 850 ;;         (deprecated)
 851 ;;         China (PRC) Hanzi, GR encoding
 852 ;; "HP-Arabic8"                                    [36]
 853 ;;         HPARABIC8 8-bit character set
 854 ;; "HP-East8"                                      [36]
 855 ;;         HPEAST8 8-bit character set
 856 ;; "HP-Greek8"                                     [36]
 857 ;;         HPGREEK8 8-bit character set
 858 ;; "HP-Hebrew8"                                    [36]
 859 ;;         HPHEBREW8 8-bit character set
 860 ;; "HP-Japanese15"                                 [36]
 861 ;;         HPJAPAN15 15-bit character set,
 862 ;;         modified from industry de facto
 863 ;;         standard Shift-JIS
 864 ;; "HP-Kana8"                                      [36]
 865 ;;         HPKANA8 8-bit character set
 866 ;; "HP-Korean15"                                   [36]
 867 ;;         HPKOREAN15 15-bit character set
 868 ;; "HP-Roman8"                                     [36]
 869 ;;         HPROMAN8 8-bit character set
 870 ;; "HP-SChinese15"                                 [36]
 871 ;;         HPSCHINA15 15-bit character set for
 872 ;;         support of Simplified Chinese
 873 ;; "HP-TChinese15"                                 [36]
 874 ;;         HPTCHINA15 15-bit character set for
 875 ;;         support of Traditional Chinese
 876 ;; "HP-Turkish8"                                   [36]
 877 ;;         HPTURKISH8 8-bit character set
 878 ;; "IPSYS"                                         [59]
 879 ;;         registry prefix
 880 ;; "IPSYS.IE-1"                                    [59]
 881 ;; "ISO2022"<REG>"-"<ENC>                          [44]
 882 ;; "ISO646.1991-IRV"                               [107]
 883 ;;         ISO 646 International Reference Version
 884 ;; "ISO8859-1"                                     [15],[12]
 885 ;;         ISO Latin alphabet No. 1
 886 ;; "ISO8859-2"                                     [15],[12]
 887 ;;         ISO Latin alphabet No. 2
 888 ;; "ISO8859-3"                                     [15],[12]
 889 ;;         ISO Latin alphabet No. 3
 890 ;; "ISO8859-4"                                     [15],[12]
 891 ;;         ISO Latin alphabet No. 4
 892 ;; "ISO8859-5"                                     [15],[12]
 893 ;;         ISO Latin/Cyrillic alphabet
 894 ;; "ISO8859-6"                                     [15],[12]
 895 ;;         ISO Latin/Arabic alphabet
 896 ;; "ISO8859-7"                                     [15],[12]
 897 ;;         ISO Latin/Greek alphabet
 898 ;; "ISO8859-8"                                     [15],[12]
 899 ;;         ISO Latin/Hebrew alphabet
 900 ;; "ISO8859-9"                                     [15],[12]
 901 ;;         ISO Latin alphabet No. 5
 902 ;; "ISO8859-10"                                    [15],[12]
 903 ;;         ISO Latin alphabet No. 6
 904 ;; "ISO8859-13"                                    [15],[12]
 905 ;;         ISO Latin alphabet No. 7
 906 ;; "ISO8859-14"                                    [15],[12]
 907 ;;         ISO Latin alphabet No. 8
 908 ;; "ISO8859-15"                                    [15],[12]
 909 ;;         ISO Latin alphabet No. 9
 910 ;; "FCD8859-15"                                    [7]
 911 ;;         (deprecated)
 912 ;;         ISO Latin alphabet No. 9, Final Committee Draft
 913 ;; "ISO10646-1"                                    [133]
 914 ;;         Unicode Universal Multiple-Octet Coded Character Set
 915 ;; "ISO10646-MES"                                  [133]
 916 ;;         (deprecated)
 917 ;;         Unicode Minimum European Subset
 918 ;; "JISX0201.1976-0"                               [38],[12]
 919 ;;         8-Bit Alphanumeric-Katakana Code
 920 ;; "JISX0208.1983-0"                               [40],[12]
 921 ;;         Japanese Graphic Character Set,
 922 ;;         GL encoding
 923 ;; "JISX0208.1990-0"                               [71]
 924 ;;         Japanese Graphic Character Set,
 925 ;;         GL encoding
 926 ;; "JISX0208.1983-1"                               [40]
 927 ;;         (deprecated)
 928 ;;         Japanese Graphic Character Set,
 929 ;;         GR encoding
 930 ;; "JISX0212.1990-0"                               [72]
 931 ;;         Supplementary Japanese Graphic Character Set,
 932 ;;         GL encoding
 933 ;; "KOI8-R"                                        [119]
 934 ;;         Cyrillic alphabet
 935 ;; "KSC5601.1987-0"                                [41],[12]
 936 ;;         Korean Graphic Character Set,
 937 ;;         GL encoding
 938 ;; "KSC5601.1987-1"                                [41]
 939 ;;         (deprecated)
 940 ;;         Korean Graphic Character Set,
 941 ;;         GR encoding
 942 ;; "omron_CNS11643-0"                              [45]
 943 ;; "omron_CNS11643-1"                              [45]
 944 ;; "omron_BIG5-0"                                  [45]
 945 ;; "omron_BIG5-1"                                  [45]
 946 ;; "wn.tamil.1993"                                 [103]
 947
 948 (defun set-font-encoding (pattern charset)
 949   "Set arguments in `font-encoding-alist' (which see)."
 950   (let ((slot (assoc pattern font-encoding-alist)))
 951     (if slot
 952         (setcdr slot charset)
 953       (setq font-encoding-alist
 954             (cons (cons pattern charset) font-encoding-alist)))))
 955
 956 (defvar x-pixel-size-width-font-regexp)
 957 (defvar vertical-centering-font-regexp)
 958
 959 ;; Setting for suppressing XLoadQueryFont on big fonts.
 960 (setq x-pixel-size-width-font-regexp
 961       (purecopy "gb2312\\|gbk\\|gb18030\\|jisx0208\\|ksc5601\\|cns11643\\|big5"))
 962
 963 ;; These fonts require vertical centering.
 964 (setq vertical-centering-font-regexp
 965       (purecopy "gb2312\\|gbk\\|gb18030\\|jisx0208\\|jisx0212\\|ksc5601\\|cns11643\\|big5"))
 966 (put 'vertical-centering-font-regexp 'standard-value
 967      (list vertical-centering-font-regexp))
 968
 969 ;; CDAC fonts are actually smaller than their design sizes.
 970 (setq face-font-rescale-alist
 971       (list (cons (purecopy "-cdac$")  1.3)))
 972
 973 (defvar x-font-name-charset-alist nil
 974   "This variable has no meaning now.  Just kept for backward compatibility.")
 975
 976 ;;; XLFD (X Logical Font Description) format handler.
 977
 978 ;; Define XLFD's field index numbers.           ; field name
 979 (defconst xlfd-regexp-family-subnum 0)          ; FOUNDRY and FAMILY
 980 (defconst xlfd-regexp-weight-subnum 1)          ; WEIGHT_NAME
 981 (defconst xlfd-regexp-slant-subnum 2)           ; SLANT
 982 (defconst xlfd-regexp-swidth-subnum 3)          ; SETWIDTH_NAME
 983 (defconst xlfd-regexp-adstyle-subnum 4)         ; ADD_STYLE_NAME
 984 (defconst xlfd-regexp-pixelsize-subnum 5)       ; PIXEL_SIZE
 985 (defconst xlfd-regexp-pointsize-subnum 6)       ; POINT_SIZE
 986 (defconst xlfd-regexp-resx-subnum 7)            ; RESOLUTION_X
 987 (defconst xlfd-regexp-resy-subnum 8)            ; RESOLUTION_Y
 988 (defconst xlfd-regexp-spacing-subnum 8)         ; SPACING
 989 (defconst xlfd-regexp-avgwidth-subnum 10)       ; AVERAGE_WIDTH
 990 (defconst xlfd-regexp-registry-subnum 11)       ; REGISTRY and ENCODING
 991
 992 ;; Regular expression matching against a fontname which conforms to
 993 ;; XLFD (X Logical Font Description).  All fields in XLFD should be
 994 ;; not be omitted (but can be a wild card) to be matched.
 995 (defconst xlfd-tight-regexp
 996   "^\
 997 -\\([^-]*-[^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)\
 998 -\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)\
 999 -\\([^-]*\\)-\\([^-]*\\)-\\([^-]*-[^-]*\\)$")
1000
1001 ;; Regular expression matching against a fontname which conforms to
1002 ;; XLFD (X Logical Font Description).  All fields in XLFD from FOUNDRY
1003 ;; to ADSTYLE, REGISTRY, and ENCODING should be not be omitted (but
1004 ;; can be a wild card) to be matched.
1005 (defconst xlfd-style-regexp
1006   "^\
1007 -\\([^-]*-[^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-.*\
1008 -\\([^-]*-[^-]*\\)$")
1009
1010 ;; List of field numbers of XLFD whose values are numeric.
1011 (defconst xlfd-regexp-numeric-subnums
1012   (list xlfd-regexp-pixelsize-subnum    ;5
1013         xlfd-regexp-pointsize-subnum    ;6
1014         xlfd-regexp-resx-subnum         ;7
1015         xlfd-regexp-resy-subnum         ;8
1016         xlfd-regexp-avgwidth-subnum     ;10
1017         ))
1018
1019 (defun x-decompose-font-name (pattern)
1020   "Decompose PATTERN into XLFD fields and return a vector of the fields.
1021 The length of the vector is 12.
1022 The FOUNDRY and FAMILY fields are concatenated and stored in the first
1023 element of the vector.
1024 The REGISTRY and ENCODING fields are concatenated and stored in the last
1025 element of the vector.
1026
1027 Return nil if PATTERN doesn't conform to XLFD."
1028   (if (string-match xlfd-tight-regexp pattern)
1029       (let ((xlfd-fields (make-vector 12 nil)))
1030         (dotimes (i 12)
1031           (aset xlfd-fields i (match-string (1+ i) pattern)))
1032         (dotimes (i 12)
1033           (if (string-match "^[*-]+$" (aref xlfd-fields i))
1034               (aset xlfd-fields i nil)))
1035         xlfd-fields)))
1036
1037 (defun x-compose-font-name (fields &optional _reduce)
1038   "Compose X fontname from FIELDS.
1039 FIELDS is a vector of XLFD fields, of length 12.
1040 If a field is nil, wild-card letter `*' is embedded.
1041 Optional argument REDUCE exists just for backward compatibility,
1042 and is always ignored."
1043   (concat "-" (mapconcat (lambda (x) (or x "*")) fields "-")))
1044
1045
1046 (defun x-must-resolve-font-name (xlfd-fields)
1047   "Like `x-resolve-font-name', but always return a font name.
1048 XLFD-FIELDS is a vector of XLFD (X Logical Font Description) fields.
1049 If no font matching XLFD-FIELDS is available, successively replace
1050 parts of the font name pattern with \"*\" until some font is found.
1051 Value is name of that font."
1052   (let ((ascii-font nil) (index 0))
1053     (while (and (null ascii-font) (<= index xlfd-regexp-registry-subnum))
1054       (let ((pattern (x-compose-font-name xlfd-fields)))
1055         (condition-case nil
1056             (setq ascii-font (x-resolve-font-name pattern))
1057           (error
1058            (message "Warning: no fonts matching `%s' available" pattern)
1059            (aset xlfd-fields index "*")
1060            (setq index (1+ index))))))
1061     (unless ascii-font
1062       (error "No fonts found"))
1063     ascii-font))
1064
1065
1066 (defun x-complement-fontset-spec (default-spec fontlist)
1067   "Complement elements of FONTLIST based on DEFAULT-SPEC.
1068 DEFAULT-SPEC is a font-spec object providing default font properties.
1069 FONTLIST is an alist of script names vs the corresponding font names.
1070
1071 The font names are parsed and unspecified font properties are
1072 given from DEFAULT-SPEC."
1073   (let ((prop-list '(:foundry :family :weight :slant :width :adstyle :size)))
1074     (dolist (elt fontlist)
1075       (let ((spec (font-spec :name (cadr elt))))
1076         (dolist (prop prop-list)
1077           (let ((val (font-get spec prop)))
1078             (or val
1079                 (font-put spec prop (font-get default-spec prop)))))
1080         (setcar (cdr elt) spec)))
1081     fontlist))
1082
1083 (defun fontset-name-p (fontset)
1084   "Return non-nil if FONTSET is valid as fontset name.
1085 A valid fontset name should conform to XLFD (X Logical Font Description)
1086 with \"fontset\" in `<CHARSET_REGISTRY>' field."
1087   (and (string-match xlfd-tight-regexp fontset)
1088        (string= (match-string (1+ xlfd-regexp-registry-subnum) fontset)
1089                 "fontset")))
1090
1091 (declare-function fontset-list "fontset.c" ())
1092
1093 (defun generate-fontset-menu ()
1094   "Return list to be appended to `x-fixed-font-alist'.
1095 Done when `mouse-set-font' is called."
1096   (let (l)
1097     (dolist (fontset (fontset-list))
1098       (or (string-match "fontset-default$" fontset)
1099           (string-match "fontset-auto[0-9]+$" fontset)
1100           (push (list (fontset-plain-name fontset) fontset) l)))
1101     (cons "Fontset"
1102           (sort l #'(lambda (x y) (string< (car x) (car y)))))))
1103
1104 (declare-function query-fontset "fontset.c" (pattern &optional regexpp))
1105
1106 (defun fontset-plain-name (fontset)
1107   "Return a plain and descriptive name of FONTSET."
1108   (if (not (setq fontset (query-fontset fontset)))
1109       (error "Invalid fontset: %s" fontset))
1110   (let ((xlfd-fields (x-decompose-font-name fontset)))
1111     (if xlfd-fields
1112         (let ((family (aref xlfd-fields xlfd-regexp-family-subnum))
1113               (weight (aref xlfd-fields xlfd-regexp-weight-subnum))
1114               (slant  (aref xlfd-fields xlfd-regexp-slant-subnum))
1115               ;(swidth (aref xlfd-fields xlfd-regexp-swidth-subnum))
1116               (size   (aref xlfd-fields xlfd-regexp-pixelsize-subnum))
1117               (nickname (aref xlfd-fields xlfd-regexp-registry-subnum))
1118               name)
1119           (if (not (string-match "^fontset-\\(.*\\)$" nickname))
1120               (setq nickname family)
1121             (setq nickname (match-string 1 nickname)))
1122           (if (and size (> (string-to-number size) 0))
1123               (setq name (format "%s: %s-dot" nickname size))
1124             (setq name nickname))
1125           (and weight
1126                (cond ((string-match "^medium$" weight)
1127                       (setq name (concat name " " "medium")))
1128                      ((string-match "^bold$\\|^demibold$" weight)
1129                       (setq name (concat name " " weight)))))
1130           (and slant
1131                (cond ((string-match "^i$" slant)
1132                       (setq name (concat name " " "italic")))
1133                      ((string-match "^o$" slant)
1134                       (setq name (concat name " " "slant")))
1135                      ((string-match "^ri$" slant)
1136                       (setq name (concat name " " "reverse italic")))
1137                      ((string-match "^ro$" slant)
1138                       (setq name (concat name " " "reverse slant")))))
1139           name)
1140       fontset)))
1141
1142 (defvar charset-script-alist
1143   '((ascii . latin)
1144     (latin-iso8859-1 . latin)
1145     (latin-iso8859-2 . latin)
1146     (latin-iso8859-3 . latin)
1147     (latin-iso8859-4 . latin)
1148     (latin-iso8859-9 . latin)
1149     (latin-iso8859-10 . latin)
1150     (latin-iso8859-13 . latin)
1151     (latin-iso8859-14 . latin)
1152     (latin-iso8859-15 . latin)
1153     (latin-iso8859-16 . latin)
1154     (latin-jisx0201 . latin)
1155     (thai-tis620 . thai)
1156     (cyrillic-iso8859-5 . cyrillic)
1157     (arabic-iso8859-6 . arabic)
1158     (greek-iso8859-7 . latin)
1159     (hebrew-iso8859-8 . latin)
1160     (katakana-jisx0201 . kana)
1161     (chinese-gb2312 . han)
1162     (chinese-gbk . han)
1163     (gb18030-2-byte . han)
1164     (gb18030-4-byte-bmp . han)
1165     (gb18030-4-byte-ext-1 . han)
1166     (gb18030-4-byte-ext-2 . han)
1167     (gb18030-4-byte-smp . han)
1168     (chinese-big5-1 . han)
1169     (chinese-big5-2 . han)
1170     (chinese-cns11643-1 . han)
1171     (chinese-cns11643-2 . han)
1172     (chinese-cns11643-3 . han)
1173     (chinese-cns11643-4 . han)
1174     (chinese-cns11643-5 . han)
1175     (chinese-cns11643-6 . han)
1176     (chinese-cns11643-7 . han)
1177     (japanese-jisx0208 . han)
1178     (japanese-jisx0208-1978 . han)
1179     (japanese-jisx0212 . han)
1180     (japanese-jisx0213-1 . han)
1181     (japanese-jisx0213-2 . han)
1182     (korean-ksc5601 . hangul)
1183     (chinese-sisheng . bopomofo)
1184     (vietnamese-viscii-lower . latin)
1185     (vietnamese-viscii-upper . latin)
1186     (arabic-digit . arabic)
1187     (arabic-1-column . arabic)
1188     (arabic-2-column . arabic)
1189     (indian-is13194 . devanagari)
1190     (indian-glyph . devanagari)
1191     (indian-1-column . devanagari)
1192     (indian-2-column . devanagari)
1193     (tibetan-1-column . tibetan))
1194   "Alist of charsets vs the corresponding most appropriate scripts.
1195
1196 This alist is used by the function `create-fontset-from-fontset-spec'
1197 to map charsets to scripts.")
1198
1199 (defun create-fontset-from-fontset-spec (fontset-spec
1200                                          &optional _style-variant _noerror)
1201   "Create a fontset from fontset specification string FONTSET-SPEC.
1202 FONTSET-SPEC is a string of the format:
1203         FONTSET-NAME,SCRIPT-NAME0:FONT-NAME0,SCRIPT-NAME1:FONT-NAME1, ...
1204 Any number of SPACE, TAB, and NEWLINE can be put before and after commas.
1205
1206 When a frame uses the fontset as the `font' parameter, the frame's
1207 default font name is derived from FONTSET-NAME by substituting
1208 \"iso8859-1\" for the tail part \"fontset-XXX\".  But, if SCRIPT-NAMEn
1209 is \"ascii\", use the corresponding FONT-NAMEn as the default font
1210 name.
1211
1212 Optional 2nd and 3rd arguments exist just for backward compatibility,
1213 and are ignored.
1214
1215 It returns a name of the created fontset.
1216
1217 For backward compatibility, SCRIPT-NAME may be a charset name, in
1218 which case, the corresponding script is decided by the variable
1219 `charset-script-alist' (which see)."
1220   (or (string-match "^[^,]+" fontset-spec)
1221       (error "Invalid fontset spec: %s" fontset-spec))
1222   (let ((idx (match-end 0))
1223         (name (match-string 0 fontset-spec))
1224         default-spec target script fontlist)
1225     (or (string-match xlfd-tight-regexp name)
1226         (error "Fontset name \"%s\" not conforming to XLFD" name))
1227     (setq default-spec (font-spec :name name))
1228     ;; At first, extract pairs of charset and fontname from FONTSET-SPEC.
1229     (while (string-match "[, \t\n]*\\([^:]+\\):[ \t]*\\([^,]+\\)"
1230                          fontset-spec idx)
1231       (setq idx (match-end 0))
1232       (setq target (intern (match-string 1 fontset-spec)))
1233       (cond ((or (eq target 'ascii)
1234                  (memq target (char-table-extra-slot char-script-table 0)))
1235              (push (list target (match-string 2 fontset-spec)) fontlist))
1236             ((setq script (cdr (assq target charset-script-alist)))
1237              (push (list script (match-string 2 fontset-spec)) fontlist))
1238             ((charsetp target)
1239              (push (list target (match-string 2 fontset-spec)) fontlist))))
1240
1241     ;; Complement FONTLIST.
1242     (setq fontlist (x-complement-fontset-spec default-spec fontlist))
1243
1244     ;; Create a fontset.
1245     (new-fontset name (nreverse fontlist))))
1246
1247 (defun create-fontset-from-ascii-font (font &optional resolved-font
1248                                             fontset-name)
1249   "Create a fontset from an ASCII font FONT.
1250
1251 Optional 2nd arg RESOLVED-FONT is a resolved name of FONT.
1252 If omitted, `x-resolve-font-name' is called to get the resolved name.
1253 At this time, if FONT is not available, an error is signaled.
1254
1255 Optional 3rd arg FONTSET-NAME is a string to be used in
1256 `<CHARSET_ENCODING>' fields of a new fontset name.  If it is omitted,
1257 an appropriate name is generated automatically.
1258
1259 It returns a name of the created fontset."
1260   (setq font (downcase font))
1261   (setq resolved-font
1262         (downcase (or resolved-font (x-resolve-font-name font))))
1263   (let ((xlfd (x-decompose-font-name resolved-font))
1264         fontset)
1265     (if fontset-name
1266         (setq fontset-name (downcase fontset-name))
1267       (if (query-fontset "fontset-startup")
1268           (setq fontset-name
1269                 (subst-char-in-string
1270                  ?- ?_ (aref xlfd xlfd-regexp-registry-subnum) t))
1271         (setq fontset-name "startup")))
1272     (aset xlfd xlfd-regexp-registry-subnum
1273           (format "fontset-%s" fontset-name))
1274     (setq fontset (x-compose-font-name xlfd))
1275     (or (query-fontset fontset)
1276         (create-fontset-from-fontset-spec (concat fontset ", ascii:" font)))))
1277
1278 \f
1279 ;; Create standard fontset from 16 dots fonts which are the most widely
1280 ;; installed fonts.  Fonts for Chinese-GB, Korean, and Chinese-CNS are
1281 ;; specified here because FAMILY of those fonts are not "fixed" in
1282 ;; many cases.
1283 (defvar standard-fontset-spec
1284   (purecopy "-*-fixed-medium-r-normal-*-16-*-*-*-*-*-fontset-standard")
1285   "String of fontset spec of the standard fontset.
1286 You have the biggest chance to display international characters
1287 with correct glyphs by using the standard fontset.
1288 See the documentation of `create-fontset-from-fontset-spec' for the format.")
1289
1290
1291 ;; Create fontsets from X resources of the name `fontset-N (class
1292 ;; Fontset-N)' where N is integer 0, 1, ...
1293 ;; The values of the resources the string of the same format as
1294 ;; `standard-fontset-spec'.
1295
1296 (declare-function x-get-resource "frame.c"
1297                   (attribute class &optional component subclass))
1298
1299 (defun create-fontset-from-x-resource ()
1300   (let ((idx 0)
1301         fontset-spec)
1302     (while (setq fontset-spec (x-get-resource (format "fontset-%d" idx)
1303                                               (format "Fontset-%d" idx)))
1304       (condition-case nil
1305           (create-fontset-from-fontset-spec fontset-spec t)
1306         (error (display-warning
1307                 'initialization
1308                 (format "Fontset-%d: invalid specification in X resource" idx)
1309                 :warning)))
1310       (setq idx (1+ idx)))))
1311
1312 ;;
1313 (provide 'fontset)
1314
1315 ;;; fontset.el ends here