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

   1 ;;; fontset.el --- commands for handling fontset
   2
   3 ;; Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
   4 ;;   2005, 2006, 2007  Free Software Foundation, Inc.
   5 ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
   6 ;;   2005, 2006, 2007
   7 ;;   National Institute of Advanced Industrial Science and Technology (AIST)
   8 ;;   Registration Number H14PRO021
   9 ;; Copyright (C) 2003, 2006
  10 ;;   National Institute of Advanced Industrial Science and Technology (AIST)
  11 ;;   Registration Number H13PRO009
  12
  13 ;; Keywords: mule, i18n, fontset
  14
  15 ;; This file is part of GNU Emacs.
  16
  17 ;; GNU Emacs is free software; you can redistribute it and/or modify
  18 ;; it under the terms of the GNU General Public License as published by
  19 ;; the Free Software Foundation; either version 3, or (at your option)
  20 ;; any later version.
  21
  22 ;; GNU Emacs is distributed in the hope that it will be useful,
  23 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  24 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  25 ;; GNU General Public License for more details.
  26
  27 ;; You should have received a copy of the GNU General Public License
  28 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  29 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  30 ;; Boston, MA 02110-1301, USA.
  31
  32 ;;; Commentary:
  33
  34 ;;; Code:
  35
  36 ;; Setup font-encoding-alist for all known encodings.
  37
  38 (setq font-encoding-alist
  39       '(("iso8859-1$" . iso-8859-1)
  40         ("iso8859-2$" . iso-8859-2)
  41         ("iso8859-3$" . iso-8859-3)
  42         ("iso8859-4$" . iso-8859-4)
  43         ("iso8859-5$" . iso-8859-5)
  44         ("iso8859-6$" . iso-8859-6)
  45         ("iso8859-7$" . iso-8859-7)
  46         ("iso8859-8$" . iso-8859-8)
  47         ("iso8859-9$" . iso-8859-9)
  48         ("iso8859-10$" . iso-8859-10)
  49         ("iso8859-11$" . iso-8859-11)
  50         ("iso8859-13$" . iso-8859-13)
  51         ("iso8859-14$" . iso-8859-14)
  52         ("iso8859-15$" . iso-8859-15)
  53         ("gb2312.1980" . chinese-gb2312)
  54         ("gbk" . chinese-gbk)
  55         ("gb18030" . gb18030)
  56         ("jisx0208.1978" . japanese-jisx0208-1978)
  57         ("jisx0208" . japanese-jisx0208)
  58         ("jisx0201" . jisx0201)
  59         ("jisx0212" . japanese-jisx0212)
  60         ("ksc5601.1987" . korean-ksc5601)
  61         ("cns11643.1992.*1" . chinese-cns11643-1)
  62         ("cns11643.1992.*2" . chinese-cns11643-2)
  63         ("cns11643.1992.*3" . chinese-cns11643-3)
  64         ("cns11643.1992.*4" . chinese-cns11643-4)
  65         ("cns11643.1992.*5" . chinese-cns11643-5)
  66         ("cns11643.1992.*6" . chinese-cns11643-6)
  67         ("cns11643.1992.*7" . chinese-cns11643-7)
  68         ("cns11643.92p1-0" . chinese-cns11643-1)
  69         ("cns11643.92p2-0" . chinese-cns11643-2)
  70         ("cns11643.92p3-0" . chinese-cns11643-3)
  71         ("cns11643.92p4-0" . chinese-cns11643-4)
  72         ("cns11643.92p5-0" . chinese-cns11643-5)
  73         ("cns11643.92p6-0" . chinese-cns11643-6)
  74         ("cns11643.92p7-0" . chinese-cns11643-7)
  75         ("big5" . big5)
  76         ("sisheng_cwnn" . chinese-sisheng)
  77         ("viscii" . viscii)
  78         ("tis620" . tis620-2533)
  79         ("microsoft-cp1251" . windows-1251)
  80         ("koi8-r" . koi8-r)
  81         ("mulearabic-0" . arabic-digit)
  82         ("mulearabic-1" . arabic-1-column)
  83         ("mulearabic-2" . arabic-2-column)
  84         ("muleipa" . ipa)
  85         ("ethiopic-unicode" . (unicode-bmp . ethiopic))
  86         ("is13194-devanagari" . indian-is13194)
  87         ("Devanagari-CDAC" . devanagari-cdac)
  88         ("Sanskrit-CDAC" . sanskrit-cdac)
  89         ("Bengali-CDAC" . bengali-cdac)
  90         ("Assamese-CDAC" . assamese-cdac)
  91         ("Punjabi-CDAC" . punjabi-cdac)
  92         ("Gujarati-CDAC" . gujarati-cdac)
  93         ("Oriya-CDAC" . oriya-cdac)
  94         ("Tamil-CDAC" . tamil-cdac)
  95         ("Telugu-CDAC" . telugu-cdac)
  96         ("Kannada-CDAC" . kannada-cdac)
  97         ("Malayalam-CDAC" . malayalam-cdac)
  98         ("Devanagari-Akruti" . devanagari-akruti)
  99         ("Bengali-Akruti" . bengali-akruti)
 100         ("Punjabi-Akruti" . punjabi-akruti)
 101         ("Gujarati-Akruti" . gujarati-akruti)
 102         ("Oriya-Akruti" . oriya-akruti)
 103         ("Tamil-Akruti" . tamil-akruti)
 104         ("Telugu-Akruti" . telugu-akruti)
 105         ("Kannada-Akruti" . kannada-akruti)
 106         ("Malayalam-Akruti" . malayalam-akruti)
 107         ("muleindian-2" . indian-2-column)
 108         ("muleindian-1" . indian-1-column)
 109         ("mulelao-1" . mule-lao)
 110         ("muletibetan-2" . tibetan)
 111         ("muletibetan-1" . tibetan-1-column)
 112         ("jisx0213.2000-1" . japanese-jisx0213-1)
 113         ("jisx0213.2000-2" . japanese-jisx0213-2)
 114         ("jisx0213.2004-1" . japanese-jisx0213.2004-1)
 115         ("abobe-symbol" . symbol)
 116         ("iso10646-1$" . (unicode-bmp . nil))
 117         ("iso10646.indian-1" . (unicode-bmp . nil))))
 118
 119 (setq script-representative-chars
 120       '((latin ?A ?Z ?a ?z)
 121         (greek #x3A9)
 122         (coptic #x3E2)
 123         (cyrillic #x42F)
 124         (armenian #x531)
 125         (hebrew #x5D0)
 126         (arabic #x628)
 127         (syriac #x710)
 128         (thaana #x78C)
 129         (devanagari #x915)
 130         (bengali #x995)
 131         (gurmukhi #xA15)
 132         (gujarati #xA95)
 133         (oriya #xB15)
 134         (tamil #xB95)
 135         (telugu #xC15)
 136         (kannada #xC95)
 137         (malayalam #xD15)
 138         (sinhala #xD95)
 139         (thai #xE17)
 140         (lao #xEA5)
 141         (tibetan #xF40)
 142         (myanmar #x1000)
 143         (georgian #x10D3)
 144         (ethiopic #x1208)
 145         (cherokee #x13B6)
 146         (canadian-aboriginal #x14C0)
 147         (ogham #x168F)
 148         (runic #x16A0)
 149         (khmer #x1780)
 150         (mongolian #x1826)
 151         (braille #x2800)
 152         (ideographic-description #x2FF0)
 153         (cjk-misc #x300E)
 154         (kana #x304B)
 155         (bopomofo #x3105)
 156         (kanbun #x319D)
 157         (han #x5B57)
 158         (yi #xA288)
 159         (hangul #xAC00)))
 160
 161 (setq otf-script-alist
 162       '((arab . arabic)
 163         (armn . armenian)
 164         (bali . balinese)
 165         (beng . bengali)
 166         (bopo . bopomofo)
 167         (brai . braille)
 168         (bugi . buginese)
 169         (buhd . buhid)
 170         (byzm . byzantine-musical-symbol)
 171         (cans . canadian_aboliginal)
 172         (cher . cherokee)
 173         (copt . coptic)
 174         (xsux . cuneiform)
 175         (cyrl . cyrillic)
 176         (cprt . cypriot)
 177         (dsrt . deseret)
 178         (deva . devanagari)
 179         (ethi . ethiopic)
 180         (geor . georgian)
 181         (glag . glagolitic)
 182         (goth . gothic)
 183         (grek . greek)
 184         (gujr . gujarati)
 185         (guru . gurmukhi)
 186         (hani . han)
 187         (hang . hangul)
 188         (hano . hanunoo)
 189         (hebr . hebrew)
 190         (kana . kana)
 191         (knda . kannada)
 192         (khar . kharoshthi)
 193         (khmr . khmer)
 194         (lao\  . lao)
 195         (latn . latin)
 196         (limb . limbu)
 197         (linb . linear_b)
 198         (mlym . malayalam)
 199         (math . mathematical)
 200         (mong . mongolian)
 201         (musc . musical-symbol)
 202         (mymr . myanmar)
 203         (nko\  . nko)
 204         (ogam . ogham)
 205         (ital . old_italic)
 206         (xpeo . old_persian)
 207         (orya . oriya)
 208         (osma . osmanya)
 209         (phag . phags-pa)
 210         (phnx . phoenician)
 211         (runr . runic)
 212         (shaw . shavian)
 213         (sinh . sinhala)
 214         (sylo . syloti_nagri)
 215         (syrc . syriac)
 216         (tglg . tagalog)
 217         (tagb . tagbanwa)
 218         (taml . tamil)
 219         (tale . tai_le)
 220         (telu . telugu)
 221         (thaa . thaana)
 222         (thai . thai)
 223         (tibt . tibetan)
 224         (tfng . tifinagh)
 225         (ugar . ugaritic)
 226         (yi\ \   . yi)))
 227
 228 ;; Set standard fontname specification of characters in the default
 229 ;; fontset to find an appropriate font for each script/charset.  The
 230 ;; specification has the form ((SCRIPT FONT-SPEC ...) ...), where
 231 ;; FONT-SPEC is:
 232 ;;      a vector [ FAMILY WEIGHT SLANT ADSTYLE REGISTRY ],
 233 ;;      or a cons (FAMILY . REGISTRY),
 234 ;;      or a string FONT-NAME.
 235 ;;
 236 ;; FAMILY, WEIGHT, SLANT, and ADSTYLE may be nil, in which case, the
 237 ;; the corresponding name of default face is used.  If REGISTRY
 238 ;; contains a character `-', the string before that is embedded in
 239 ;; `CHARSET_REGISTRY' field, and the string after that is embedded in
 240 ;; `CHARSET_ENCODING' field.  If it does not contain `-', the whole
 241 ;; string is embedded in `CHARSET_REGISTRY' field, and a wild card
 242 ;; character `*' is embedded in `CHARSET_ENCODING' field.
 243 ;;
 244 ;; SCRIPT is a symbol that appears as an element of the char table
 245 ;; `char-script-table'.  SCRIPT may be a charset specifying the range
 246 ;; of characters.
 247
 248 (defun setup-default-fontset ()
 249   "Setup the default fontset."
 250   (new-fontset
 251    "fontset-default"
 252    `(;; for each script
 253      (latin (nil . "ISO8859-1")
 254             (nil . "ISO8859-2")
 255             (nil . "ISO8859-3")
 256             (nil . "ISO8859-4")
 257             (nil . "ISO8859-9")
 258             (nil . "ISO8859-10")
 259             (nil . "ISO8859-13")
 260             (nil . "ISO8859-14")
 261             (nil . "ISO8859-15")
 262             (nil . "VISCII1.1-1"))
 263
 264      (thai (nil . "TIS620*")
 265            (nil . "ISO8859-11"))
 266
 267      (devanagari ,(font-spec :registry "iso10646-1" :otf '(deva nil (rphf)))
 268                  (nil . "iso10646.indian-1"))
 269      (tamil ,(font-spec :registry "iso10646-1" :otf '(taml nil (akhn))))
 270
 271      (lao  (nil . "MuleLao-1"))
 272
 273      (tai-viet ("TaiViet" . "iso10646-1"))
 274
 275      ;; both for script and charset.
 276      (tibetan (nil . "muletibetan-2"))
 277
 278      ;; both for script and charset.
 279      (ethiopic (nil . "ethiopic-unicode"))
 280
 281      (greek (nil . "ISO8859-7"))
 282
 283      (cyrillic (nil . "ISO8859-5")
 284                (nil . "microsoft-cp1251")
 285                (nil . "koi8-r"))
 286
 287      (arabic (nil . "MuleArabic-0")
 288              (nil . "MuleArabic-1")
 289              (nil . "MuleArabic-2")
 290              (nil . "ISO8859-6"))
 291
 292      (hebrew (nil . "ISO8859-8"))
 293
 294      (kana (nil . "JISX0208*")
 295            (nil . "GB2312.1980-0")
 296            (nil . "KSC5601.1987*")
 297            (nil . "JISX0201*")
 298            (nil . "JISX0213.2000-1")
 299            (nil . "JISX0213.2004-1"))
 300
 301      (bopomofo (nil . "sisheng_cwnn-0"))
 302
 303      (han (nil . "GB2312.1980-0")
 304           (nil . "JISX0208*")
 305           (nil . "JISX0212*")
 306           (nil . "big5*")
 307           (nil . "KSC5601.1987*")
 308           (nil . "CNS11643.1992-1")
 309           (nil . "CNS11643.1992-2")
 310           (nil . "CNS11643.1992-3")
 311           (nil . "CNS11643.1992-4")
 312           (nil . "CNS11643.1992-5")
 313           (nil . "CNS11643.1992-6")
 314           (nil . "CNS11643.1992-7")
 315           (nil . "gbk-0")
 316           (nil . "gb18030")
 317           (nil . "JISX0213.2000-1")
 318           (nil . "JISX0213.2000-2")
 319           (nil . "JISX0213.2004-1"))
 320
 321      (cjk-misc (nil . "GB2312.1980-0")
 322                (nil . "JISX0208*")
 323                (nil . "JISX0212*")
 324                (nil . "big5*")
 325                (nil . "KSC5601.1987*")
 326                (nil . "CNS11643.1992-1")
 327                (nil . "CNS11643.1992-2")
 328                (nil . "CNS11643.1992-3")
 329                (nil . "CNS11643.1992-4")
 330                (nil . "CNS11643.1992-5")
 331                (nil . "CNS11643.1992-6")
 332                (nil . "CNS11643.1992-7")
 333                (nil . "gbk-0")
 334                (nil . "gb18030")
 335                (nil . "JISX0213.2000-1")
 336                (nil . "JISX0213.2000-2"))
 337
 338      (hangul (nil . "KSC5601.1987-0"))
 339
 340      ;; for each charset
 341      (ascii (nil . "ISO8859-1"))
 342      (arabic-digit ("*" . "MuleArabic-0"))
 343      (arabic-1-column ("*" . "MuleArabic-1"))
 344      (arabic-2-column ("*" . "MuleArabic-2"))
 345      (indian-is13194 (nil . "is13194-devanagari"))
 346      (indian-1-column ("*" . "muleindian-2"))
 347      ;; Indian CDAC
 348      (devanagari-cdac (nil . "Devanagari-CDAC"))
 349      (sanskrit-cdac (nil . "Sanskrit-CDAC"))
 350      (bengali-cdac (nil . "Bengali-CDAC"))
 351      (assamese-cdac (nil . "Assamese-CDAC"))
 352      (punjabi-cdac (nil . "Punjabi-CDAC"))
 353      (gujarati-cdac (nil . "Gujarati-CDAC"))
 354      (oriya-cdac (nil . "Oriya-CDAC"))
 355      (tamil-cdac (nil . "Tamil-CDAC"))
 356      (telugu-cdac (nil . "Telugu-CDAC"))
 357      (kannada-cdac (nil . "Kannada-CDAC"))
 358      (malayalam-cdac (nil . "Malayalam-CDAC"))
 359      ;; Indian AKRUTI
 360      (devanagari-akruti (nil . "Devanagari-Akruti"))
 361      (bengali-akruti (nil . "Bengali-Akruti"))
 362      (punjabi-akruti (nil . "Punjabi-Akruti"))
 363      (gujarati-akruti (nil . "Gujarati-Akruti"))
 364      (oriya-akruti (nil . "Oriya-Akruti"))
 365      (tamil-akruti (nil . "Tamil-Akruti"))
 366      (telugu-akruti (nil . "Telugu-Akruti"))
 367      (kannada-akruti (nil . "Kannada-Akruti"))
 368      (malayalam-akruti (nil . "Malayalam-Akruti"))
 369      ;;(devanagari-glyph ("altsys-dv_ttsurekh" . "devanagari-cdac"))
 370      ;;(malayalam-glyph ("altsys-ml_ttkarthika" . "malayalam-cdac"))
 371      (ipa (nil . "MuleIPA-1"))
 372
 373      ;; Fallback fonts
 374      (nil (nil . "gb2312.1980")
 375           (nil . "gbk-0")
 376           (nil . "gb18030")
 377           (nil . "jisx0208")
 378           (nil . "ksc5601.1987")
 379           (nil . "CNS11643.1992-1")
 380           (nil . "CNS11643.1992-2")
 381           (nil . "CNS11643.1992-3")
 382           (nil . "CNS11643.1992-4")
 383           (nil . "CNS11643.1992-5")
 384           (nil . "CNS11643.1992-6")
 385           (nil . "CNS11643.1992-7")
 386           (nil . "big5")
 387           (nil . "jisx0213.2000-1")
 388           (nil . "jisx0213.2004-1")
 389           (nil . "jisx0212"))
 390      ))
 391
 392   ;; Append Unicode fonts.
 393   ;; This may find fonts with more variants (bold, italic) but which
 394   ;; don't cover many characters.
 395   (set-fontset-font "fontset-default" nil
 396                     '(nil . "iso10646-1") nil 'append)
 397   ;; These may find fonts that cover many characters but with fewer
 398   ;; variants.
 399   (set-fontset-font "fontset-default" nil
 400                     '("gnu-unifont" . "iso10646-1") nil 'append)
 401   (set-fontset-font "fontset-default" nil
 402                     '("mutt-clearlyu" . "iso10646-1") nil 'append))
 403
 404 ;; These are the registered registries/encodings from
 405 ;; ftp://ftp.x.org/pub/DOCS/registry 2001/06/01
 406
 407 ;; Name                                            Reference
 408 ;; ----                                            ---------
 409 ;; "DEC"                                           [27]
 410 ;;         registry prefix
 411 ;; "DEC.CNS11643.1986-2"                           [53]
 412 ;;         CNS11643 2-plane using the encoding
 413 ;;         suggested in that standard
 414 ;; "DEC.DTSCS.1990-2"                              [54]
 415 ;;         DEC Taiwan Supplemental Character Set
 416 ;; "fujitsu.u90x01.1991-0"                         [87]
 417 ;; "fujitsu.u90x03.1991-0"                         [87]
 418 ;; "GB2312.1980-0"                                 [39],[12]
 419 ;;         China (PRC) Hanzi, GL encoding
 420 ;; "GB2312.1980-1"                                 [39]
 421 ;;         (deprecated)
 422 ;;         China (PRC) Hanzi, GR encoding
 423 ;; "HP-Arabic8"                                    [36]
 424 ;;         HPARABIC8 8-bit character set
 425 ;; "HP-East8"                                      [36]
 426 ;;         HPEAST8 8-bit character set
 427 ;; "HP-Greek8"                                     [36]
 428 ;;         HPGREEK8 8-bit character set
 429 ;; "HP-Hebrew8"                                    [36]
 430 ;;         HPHEBREW8 8-bit character set
 431 ;; "HP-Japanese15"                                 [36]
 432 ;;         HPJAPAN15 15-bit characer set,
 433 ;;         modified from industry defacto
 434 ;;         standard Shift-JIS
 435 ;; "HP-Kana8"                                      [36]
 436 ;;         HPKANA8 8-bit character set
 437 ;; "HP-Korean15"                                   [36]
 438 ;;         HPKOREAN15 15-bit character set
 439 ;; "HP-Roman8"                                     [36]
 440 ;;         HPROMAN8 8-bit character set
 441 ;; "HP-SChinese15"                                 [36]
 442 ;;         HPSCHINA15 15-bit character set for
 443 ;;         support of Simplified Chinese
 444 ;; "HP-TChinese15"                                 [36]
 445 ;;         HPTCHINA15 15-bit character set for
 446 ;;         support of Traditional Chinese
 447 ;; "HP-Turkish8"                                   [36]
 448 ;;         HPTURKISH8 8-bit character set
 449 ;; "IPSYS"                                         [59]
 450 ;;         registry prefix
 451 ;; "IPSYS.IE-1"                                    [59]
 452 ;; "ISO2022"<REG>"-"<ENC>                          [44]
 453 ;; "ISO646.1991-IRV"                               [107]
 454 ;;         ISO 646 International Reference Version
 455 ;; "ISO8859-1"                                     [15],[12]
 456 ;;         ISO Latin alphabet No. 1
 457 ;; "ISO8859-2"                                     [15],[12]
 458 ;;         ISO Latin alphabet No. 2
 459 ;; "ISO8859-3"                                     [15],[12]
 460 ;;         ISO Latin alphabet No. 3
 461 ;; "ISO8859-4"                                     [15],[12]
 462 ;;         ISO Latin alphabet No. 4
 463 ;; "ISO8859-5"                                     [15],[12]
 464 ;;         ISO Latin/Cyrillic alphabet
 465 ;; "ISO8859-6"                                     [15],[12]
 466 ;;         ISO Latin/Arabic alphabet
 467 ;; "ISO8859-7"                                     [15],[12]
 468 ;;         ISO Latin/Greek alphabet
 469 ;; "ISO8859-8"                                     [15],[12]
 470 ;;         ISO Latin/Hebrew alphabet
 471 ;; "ISO8859-9"                                     [15],[12]
 472 ;;         ISO Latin alphabet No. 5
 473 ;; "ISO8859-10"                                    [15],[12]
 474 ;;         ISO Latin alphabet No. 6
 475 ;; "ISO8859-13"                                    [15],[12]
 476 ;;         ISO Latin alphabet No. 7
 477 ;; "ISO8859-14"                                    [15],[12]
 478 ;;         ISO Latin alphabet No. 8
 479 ;; "ISO8859-15"                                    [15],[12]
 480 ;;         ISO Latin alphabet No. 9
 481 ;; "FCD8859-15"                                    [7]
 482 ;;         (deprecated)
 483 ;;         ISO Latin alphabet No. 9, Final Committee Draft
 484 ;; "ISO10646-1"                                    [133]
 485 ;;         Unicode Universal Multiple-Octet Coded Character Set
 486 ;; "ISO10646-MES"                                  [133]
 487 ;;         (deprecated)
 488 ;;         Unicode Minimum European Subset
 489 ;; "JISX0201.1976-0"                               [38],[12]
 490 ;;         8-Bit Alphanumeric-Katakana Code
 491 ;; "JISX0208.1983-0"                               [40],[12]
 492 ;;         Japanese Graphic Character Set,
 493 ;;         GL encoding
 494 ;; "JISX0208.1990-0"                               [71]
 495 ;;         Japanese Graphic Character Set,
 496 ;;         GL encoding
 497 ;; "JISX0208.1983-1"                               [40]
 498 ;;         (deprecated)
 499 ;;         Japanese Graphic Character Set,
 500 ;;         GR encoding
 501 ;; "JISX0212.1990-0"                               [72]
 502 ;;         Supplementary Japanese Graphic Character Set,
 503 ;;         GL encoding
 504 ;; "KOI8-R"                                        [119]
 505 ;;         Cyrillic alphabet
 506 ;; "KSC5601.1987-0"                                [41],[12]
 507 ;;         Korean Graphic Character Set,
 508 ;;         GL encoding
 509 ;; "KSC5601.1987-1"                                [41]
 510 ;;         (deprecated)
 511 ;;         Korean Graphic Character Set,
 512 ;;         GR encoding
 513 ;; "omron_CNS11643-0"                              [45]
 514 ;; "omron_CNS11643-1"                              [45]
 515 ;; "omron_BIG5-0"                                  [45]
 516 ;; "omron_BIG5-1"                                  [45]
 517 ;; "wn.tamil.1993"                                 [103]
 518
 519 (defun set-font-encoding (pattern charset)
 520   "Set arguments in `font-encoding-alist' (which see)."
 521   (let ((slot (assoc pattern font-encoding-alist)))
 522     (if slot
 523         (setcdr slot charset)
 524       (setq font-encoding-alist
 525             (cons (cons pattern charset) font-encoding-alist)))))
 526
 527 ;; Setting for suppressing XLoadQueryFont on big fonts.
 528 (setq x-pixel-size-width-font-regexp
 529       "gb2312\\|gbk\\|gb18030\\|jisx0208\\|ksc5601\\|cns11643\\|big5")
 530
 531 ;; These fonts require vertical centering.
 532 (setq vertical-centering-font-regexp
 533       "gb2312\\|gbk\\|gb18030\\|jisx0208\\|jisx0212\\|ksc5601\\|cns11643\\|big5")
 534
 535 ;; CDAC fonts are actually smaller than their design sizes.
 536 (setq face-font-rescale-alist
 537       '(("-cdac$" . 1.3)))
 538
 539 (defvar x-font-name-charset-alist nil
 540   "This variable has no meaning now.  Just kept for backward compatibility.")
 541
 542 ;;; XLFD (X Logical Font Description) format handler.
 543
 544 ;; Define XLFD's field index numbers.           ; field name
 545 (defconst xlfd-regexp-family-subnum 0)          ; FOUNDRY and FAMILY
 546 (defconst xlfd-regexp-weight-subnum 1)          ; WEIGHT_NAME
 547 (defconst xlfd-regexp-slant-subnum 2)           ; SLANT
 548 (defconst xlfd-regexp-swidth-subnum 3)          ; SETWIDTH_NAME
 549 (defconst xlfd-regexp-adstyle-subnum 4)         ; ADD_STYLE_NAME
 550 (defconst xlfd-regexp-pixelsize-subnum 5)       ; PIXEL_SIZE
 551 (defconst xlfd-regexp-pointsize-subnum 6)       ; POINT_SIZE
 552 (defconst xlfd-regexp-resx-subnum 7)            ; RESOLUTION_X
 553 (defconst xlfd-regexp-resy-subnum 8)            ; RESOLUTION_Y
 554 (defconst xlfd-regexp-spacing-subnum 8)         ; SPACING
 555 (defconst xlfd-regexp-avgwidth-subnum 10)       ; AVERAGE_WIDTH
 556 (defconst xlfd-regexp-registry-subnum 11)       ; REGISTRY and ENCODING
 557
 558 ;; Regular expression matching against a fontname which conforms to
 559 ;; XLFD (X Logical Font Description).  All fields in XLFD should be
 560 ;; not be omitted (but can be a wild card) to be matched.
 561 (defconst xlfd-tight-regexp
 562   "^\
 563 -\\([^-]*-[^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)\
 564 -\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)\
 565 -\\([^-]*\\)-\\([^-]*\\)-\\([^-]*-[^-]*\\)$")
 566
 567 ;; Regular expression matching against a fontname which conforms to
 568 ;; XLFD (X Logical Font Description).  All fields in XLFD from FOUNDRY
 569 ;; to ADSTYLE, REGISTRY, and ENCODING should be not be omitted (but
 570 ;; can be a wild card) to be matched.
 571 (defconst xlfd-style-regexp
 572   "^\
 573 -\\([^-]*-[^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-.*\
 574 -\\([^-]*-[^-]*\\)$")
 575
 576 ;; List of field numbers of XLFD whose values are numeric.
 577 (defconst xlfd-regexp-numeric-subnums
 578   (list xlfd-regexp-pixelsize-subnum    ;5
 579         xlfd-regexp-pointsize-subnum    ;6
 580         xlfd-regexp-resx-subnum         ;7
 581         xlfd-regexp-resy-subnum         ;8
 582         xlfd-regexp-avgwidth-subnum     ;10
 583         ))
 584
 585 (defun x-decompose-font-name (pattern)
 586   "Decompose PATTERN into XLFD fields and return a vector of the fields.
 587 The length of the vector is 12.
 588 The FOUNDRY and FAMILY fields are concatinated and stored in the first
 589 element of the vector.
 590 The REGISTRY and ENCODING fields are concatinated and stored in the last
 591 element of the vector.
 592
 593 Return nil if PATTERN doesn't conform to XLFD."
 594   (if (string-match xlfd-tight-regexp pattern)
 595       (let ((xlfd-fields (make-vector 12 nil)))
 596         (dotimes (i 12)
 597           (aset xlfd-fields i (match-string (1+ i) pattern)))
 598         (dotimes (i 12)
 599           (if (string-match "^[*-]+$" (aref xlfd-fields i))
 600               (aset xlfd-fields i nil)))
 601         xlfd-fields)))
 602
 603 (defun x-compose-font-name (fields &optional reduce)
 604   "Compose X fontname from FIELDS.
 605 FIELDS is a vector of XLFD fields, of length 12.
 606 If a field is nil, wild-card letter `*' is embedded.
 607 Optional argument REDUCE exists just for backward compatibility,
 608 and is always ignored."
 609   (concat "-" (mapconcat (lambda (x) (or x "*")) fields "-")))
 610
 611
 612 (defun x-must-resolve-font-name (xlfd-fields)
 613   "Like `x-resolve-font-name', but always return a font name.
 614 XLFD-FIELDS is a vector of XLFD (X Logical Font Description) fields.
 615 If no font matching XLFD-FIELDS is available, successively replace
 616 parts of the font name pattern with \"*\" until some font is found.
 617 Value is name of that font."
 618   (let ((ascii-font nil) (index 0))
 619     (while (and (null ascii-font) (<= index xlfd-regexp-registry-subnum))
 620       (let ((pattern (x-compose-font-name xlfd-fields)))
 621         (condition-case nil
 622             (setq ascii-font (x-resolve-font-name pattern))
 623           (error
 624            (message "Warning: no fonts matching `%s' available" pattern)
 625            (aset xlfd-fields index "*")
 626            (setq index (1+ index))))))
 627     (unless ascii-font
 628       (error "No fonts found"))
 629     ascii-font))
 630
 631
 632 (defun x-complement-fontset-spec (xlfd-fields fontlist)
 633   "Complement elements of FONTLIST based on XLFD-FIELDS.
 634 XLFD-FIELDS is a vector of XLFD (X Logical Font Description) fields.
 635 FONTLIST is an alist of script names vs the corresponding font names.
 636
 637 The font names are complemented as below.
 638
 639 If a font name matches `xlfd-style-regexp', each field of wild card is
 640 replaced by the corresponding fields in XLFD-FIELDS."
 641   (let ((default-spec (vector (aref xlfd-fields xlfd-regexp-family-subnum)
 642                               (aref xlfd-fields xlfd-regexp-weight-subnum)
 643                               (aref xlfd-fields xlfd-regexp-slant-subnum)
 644                               (aref xlfd-fields xlfd-regexp-swidth-subnum)
 645                               (aref xlfd-fields xlfd-regexp-adstyle-subnum)
 646                               (aref xlfd-fields xlfd-regexp-registry-subnum))))
 647     (dolist (elt fontlist)
 648       (let ((name (cadr elt))
 649             font-spec)
 650         (when (or (string-match xlfd-style-regexp name)
 651                   (and (setq name (car (x-list-fonts name nil nil 1)))
 652                        (string-match xlfd-style-regexp name)))
 653           (setq font-spec (make-vector 6 nil))
 654           (dotimes (i 6)
 655             (aset font-spec i (match-string (1+ i) name)))
 656           (dotimes (i 5)
 657             (if (string-match "^[*-]+$" (aref font-spec i))
 658                 (aset font-spec i (aref default-spec i))))
 659           (setcar (cdr elt) font-spec))))
 660
 661     fontlist))
 662
 663 (defun fontset-name-p (fontset)
 664   "Return non-nil if FONTSET is valid as fontset name.
 665 A valid fontset name should conform to XLFD (X Logical Font Description)
 666 with \"fontset\" in `<CHARSET_REGISTRY>' field."
 667   (and (string-match xlfd-tight-regexp fontset)
 668        (string= (match-string (1+ xlfd-regexp-registry-subnum) fontset)
 669                 "fontset")))
 670
 671 (defun generate-fontset-menu ()
 672   "Return list to be appended to `x-fixed-font-alist'.
 673 Done when `mouse-set-font' is called."
 674   (let (l)
 675     (dolist (fontset (fontset-list))
 676       (or (string-match "fontset-default$" fontset)
 677           (push (list (fontset-plain-name fontset) fontset) l)))
 678     (cons "Fontset"
 679           (sort l #'(lambda (x y) (string< (car x) (car y)))))))
 680
 681 (defun fontset-plain-name (fontset)
 682   "Return a plain and descriptive name of FONTSET."
 683   (if (not (setq fontset (query-fontset fontset)))
 684       (error "Invalid fontset: %s" fontset))
 685   (let ((xlfd-fields (x-decompose-font-name fontset)))
 686     (if xlfd-fields
 687         (let ((family (aref xlfd-fields xlfd-regexp-family-subnum))
 688               (weight (aref xlfd-fields xlfd-regexp-weight-subnum))
 689               (slant  (aref xlfd-fields xlfd-regexp-slant-subnum))
 690               (swidth (aref xlfd-fields xlfd-regexp-swidth-subnum))
 691               (size   (aref xlfd-fields xlfd-regexp-pixelsize-subnum))
 692               (nickname (aref xlfd-fields xlfd-regexp-registry-subnum))
 693               name)
 694           (if (not (string-match "^fontset-\\(.*\\)$" nickname))
 695               (setq nickname family)
 696             (setq nickname (match-string 1 nickname)))
 697           (if (and size (> (string-to-number size) 0))
 698               (setq name (format "%s: %s-dot" nickname size))
 699             (setq name nickname))
 700           (and weight
 701                (cond ((string-match "^medium$" weight)
 702                       (setq name (concat name " " "medium")))
 703                      ((string-match "^bold$\\|^demibold$" weight)
 704                       (setq name (concat name " " weight)))))
 705           (and slant
 706                (cond ((string-match "^i$" slant)
 707                       (setq name (concat name " " "italic")))
 708                      ((string-match "^o$" slant)
 709                       (setq name (concat name " " "slant")))
 710                      ((string-match "^ri$" slant)
 711                       (setq name (concat name " " "reverse italic")))
 712                      ((string-match "^ro$" slant)
 713                       (setq name (concat name " " "reverse slant")))))
 714           name)
 715       fontset)))
 716
 717 (defvar charset-script-alist
 718   '((ascii . latin)
 719     (latin-iso8859-1 . latin)
 720     (latin-iso8859-2 . latin)
 721     (latin-iso8859-3 . latin)
 722     (latin-iso8859-4 . latin)
 723     (latin-iso8859-9 . latin)
 724     (latin-iso8859-10 . latin)
 725     (latin-iso8859-13 . latin)
 726     (latin-iso8859-14 . latin)
 727     (latin-iso8859-15 . latin)
 728     (latin-iso8859-16 . latin)
 729     (latin-jisx0201 . latin)
 730     (thai-tis620 . thai)
 731     (cyrillic-iso8859-5 . cyrillic)
 732     (arabic-iso8859-6 . arabic)
 733     (greek-iso8859-7 . latin)
 734     (hebrew-iso8859-8 . latin)
 735     (katakana-jisx0201 . kana)
 736     (chinese-gb2312 . han)
 737     (chinese-gbk . han)
 738     (gb18030-2-byte . han)
 739     (gb18030-4-byte-bmp . han)
 740     (gb18030-4-byte-ext-1 . han)
 741     (gb18030-4-byte-ext-2 . han)
 742     (gb18030-4-byte-smp . han)
 743     (chinese-big5-1 . han)
 744     (chinese-big5-2 . han)
 745     (chinese-cns11643-1 . han)
 746     (chinese-cns11643-2 . han)
 747     (chinese-cns11643-3 . han)
 748     (chinese-cns11643-4 . han)
 749     (chinese-cns11643-5 . han)
 750     (chinese-cns11643-6 . han)
 751     (chinese-cns11643-7 . han)
 752     (japanese-jisx0208 . han)
 753     (japanese-jisx0208-1978 . han)
 754     (japanese-jisx0212 . han)
 755     (japanese-jisx0213-1 . han)
 756     (japanese-jisx0213-2 . han)
 757     (korean-ksc5601 . hangul)
 758     (chinese-sisheng . bopomofo)
 759     (vietnamese-viscii-lower . latin)
 760     (vietnamese-viscii-upper . latin)
 761     (arabic-digit . arabic)
 762     (arabic-1-column . arabic)
 763     (arabic-2-column . arabic)
 764     (indian-is13194 . devanagari)
 765     (indian-glyph . devanagari)
 766     (indian-1-column . devanagari)
 767     (indian-2-column . devanagari)
 768     (tibetan-1-column . tibetan))
 769   "Alist of charsets vs the corresponding most appropriate scripts.
 770
 771 This alist is used by the function `create-fontset-from-fontset-spec'
 772 to map charsets to scripts.")
 773
 774 (defun create-fontset-from-fontset-spec (fontset-spec
 775                                          &optional style-variant noerror)
 776   "Create a fontset from fontset specification string FONTSET-SPEC.
 777 FONTSET-SPEC is a string of the format:
 778         FONTSET-NAME,SCRIPT0:FONT0,SCRIPT1:FONT1, ...
 779 Any number of SPACE, TAB, and NEWLINE can be put before and after commas.
 780
 781 When a frame uses the fontset as the `font' parameter, the frame's
 782 default font name is derived from FONTSET-NAME by substituting
 783 \"iso8859-1\" for the tail part \"fontset-XXX\".  But, if SCRIPT-NAMEn
 784 is \"ascii\", use the corresponding FONT-NAMEn as the default font
 785 name.
 786
 787 Optional 2nd and 3rd arguments exist just for backward compatibility,
 788 and are ignored.
 789
 790 It returns a name of the created fontset.
 791
 792 For backward compatibility, SCRIPT-NAME may be a charset name, in
 793 which case, the corresponding script is decided by the variable
 794 `charset-script-alist' (which see)."
 795   (or (string-match "^[^,]+" fontset-spec)
 796       (error "Invalid fontset spec: %s" fontset-spec))
 797   (let ((idx (match-end 0))
 798         (name (match-string 0 fontset-spec))
 799         xlfd-fields target script fontlist)
 800     (setq xlfd-fields (x-decompose-font-name name))
 801     (or xlfd-fields
 802         (error "Fontset name \"%s\" not conforming to XLFD" name))
 803
 804     ;; At first, extract pairs of charset and fontname from FONTSET-SPEC.
 805     (while (string-match "[, \t\n]*\\([^:]+\\):[ \t]*\\([^,]+\\)"
 806                          fontset-spec idx)
 807       (setq idx (match-end 0))
 808       (setq target (intern (match-string 1 fontset-spec)))
 809       (cond ((or (eq target 'ascii)
 810                  (memq target (char-table-extra-slot char-script-table 0)))
 811              (push (list target (match-string 2 fontset-spec)) fontlist))
 812             ((setq script (cdr (assq target charset-script-alist)))
 813              (push (list script (match-string 2 fontset-spec)) fontlist))
 814             ((charsetp target)
 815              (push (list target (match-string 2 fontset-spec)) fontlist))))
 816
 817     ;; Complement FONTLIST.
 818     (setq fontlist (x-complement-fontset-spec xlfd-fields fontlist))
 819
 820     ;; Create a fontset.
 821     (new-fontset name (nreverse fontlist))))
 822
 823 (defun create-fontset-from-ascii-font (font &optional resolved-font
 824                                             fontset-name)
 825   "Create a fontset from an ASCII font FONT.
 826
 827 Optional 2nd arg RESOLVED-FONT is a resolved name of FONT.
 828 If omitted, `x-resolve-font-name' is called to get the resolved name.
 829 At this time, if FONT is not available, an error is signaled.
 830
 831 Optional 3rd arg FONTSET-NAME is a string to be used in
 832 `<CHARSET_ENCODING>' fields of a new fontset name.  If it is omitted,
 833 an appropriate name is generated automatically.
 834
 835 It returns a name of the created fontset."
 836   (setq font (downcase font))
 837   (setq resolved-font
 838         (downcase (or resolved-font (x-resolve-font-name font))))
 839   (let ((xlfd (x-decompose-font-name resolved-font))
 840         fontset)
 841     (if fontset-name
 842         (setq fontset-name (downcase fontset-name))
 843       (if (query-fontset "fontset-startup")
 844           (setq fontset-name
 845                 (subst-char-in-string
 846                  ?- ?_ (aref xlfd xlfd-regexp-registry-subnum) t))
 847         (setq fontset-name "startup")))
 848     (aset xlfd xlfd-regexp-registry-subnum
 849           (format "fontset-%s" fontset-name))
 850     (setq fontset (x-compose-font-name xlfd))
 851     (or (query-fontset fontset)
 852         (create-fontset-from-fontset-spec (concat fontset ", ascii:" font)))))
 853
 854 \f
 855 ;; Create standard fontset from 16 dots fonts which are the most widely
 856 ;; installed fonts.  Fonts for Chinese-GB, Korean, and Chinese-CNS are
 857 ;; specified here because FAMILY of those fonts are not "fixed" in
 858 ;; many cases.
 859 (defvar standard-fontset-spec
 860   (purecopy "-*-fixed-medium-r-normal-*-16-*-*-*-*-*-fontset-standard")
 861   "String of fontset spec of the standard fontset.
 862 You have the biggest chance to display international characters
 863 with correct glyphs by using the standard fontset.
 864 See the documentation of `create-fontset-from-fontset-spec' for the format.")
 865
 866
 867 ;; Create fontsets from X resources of the name `fontset-N (class
 868 ;; Fontset-N)' where N is integer 0, 1, ...
 869 ;; The values of the resources the string of the same format as
 870 ;; `standard-fontset-spec'.
 871
 872 (defun create-fontset-from-x-resource ()
 873   (let ((idx 0)
 874         fontset-spec)
 875     (while (setq fontset-spec (x-get-resource (format "fontset-%d" idx)
 876                                               (format "Fontset-%d" idx)))
 877       (create-fontset-from-fontset-spec fontset-spec t 'noerror)
 878       (setq idx (1+ idx)))))
 879
 880 ;;
 881 (provide 'fontset)
 882
 883 ;;; arch-tag: bb53e629-0234-403c-950e-551e61554849
 884 ;;; fontset.el ends here