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 cons (FAMILY . REGISTRY),
 233 ;;      or a string FONT-NAME,
 234 ;;      or an object created by `font-spec'.
 235 ;;
 236 ;; FAMILY may be nil, in which case, the the corresponding name of
 237 ;; default face is used.  If REGISTRY contains a character `-', the
 238 ;; string before that is embedded in `CHARSET_REGISTRY' field, and the
 239 ;; string after that is embedded in `CHARSET_ENCODING' field.  If it
 240 ;; does not contain `-', the whole string is embedded in
 241 ;; `CHARSET_REGISTRY' field, and a wild card character `*' is embedded
 242 ;; 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      (malayalam ,(font-spec :registry "iso10646-1" :otf '(mlym nil (akhn))))
 270      (tamil ,(font-spec :registry "iso10646-1" :otf '(taml nil (akhn))))
 271
 272      (lao  (nil . "MuleLao-1"))
 273
 274      (tai-viet ("TaiViet" . "iso10646-1"))
 275
 276      ;; both for script and charset.
 277      (tibetan ,(font-spec :registry "iso10646-1"
 278                           :otf '(tibt nil (ccmp blws abvs)))
 279               ,(font-spec :family "mtib" :registry "iso10646-1")
 280               (nil . "muletibetan-2"))
 281
 282      ;; both for script and charset.
 283      (ethiopic (nil . "ethiopic-unicode"))
 284
 285      (greek (nil . "ISO8859-7"))
 286
 287      (cyrillic (nil . "ISO8859-5")
 288                (nil . "microsoft-cp1251")
 289                (nil . "koi8-r"))
 290
 291      (arabic (nil . "MuleArabic-0")
 292              (nil . "MuleArabic-1")
 293              (nil . "MuleArabic-2")
 294              (nil . "ISO8859-6"))
 295
 296      (hebrew (nil . "ISO8859-8"))
 297
 298      (kana (nil . "JISX0208*")
 299            (nil . "GB2312.1980-0")
 300            (nil . "KSC5601.1987*")
 301            (nil . "JISX0201*")
 302            (nil . "JISX0213.2000-1")
 303            (nil . "JISX0213.2004-1"))
 304
 305      (bopomofo (nil . "sisheng_cwnn-0"))
 306
 307      (han (nil . "GB2312.1980-0")
 308           (nil . "JISX0208*")
 309           (nil . "JISX0212*")
 310           (nil . "big5*")
 311           (nil . "KSC5601.1987*")
 312           (nil . "CNS11643.1992-1")
 313           (nil . "CNS11643.1992-2")
 314           (nil . "CNS11643.1992-3")
 315           (nil . "CNS11643.1992-4")
 316           (nil . "CNS11643.1992-5")
 317           (nil . "CNS11643.1992-6")
 318           (nil . "CNS11643.1992-7")
 319           (nil . "gbk-0")
 320           (nil . "gb18030")
 321           (nil . "JISX0213.2000-1")
 322           (nil . "JISX0213.2000-2")
 323           (nil . "JISX0213.2004-1"))
 324
 325      (cjk-misc (nil . "GB2312.1980-0")
 326                (nil . "JISX0208*")
 327                (nil . "JISX0212*")
 328                (nil . "big5*")
 329                (nil . "KSC5601.1987*")
 330                (nil . "CNS11643.1992-1")
 331                (nil . "CNS11643.1992-2")
 332                (nil . "CNS11643.1992-3")
 333                (nil . "CNS11643.1992-4")
 334                (nil . "CNS11643.1992-5")
 335                (nil . "CNS11643.1992-6")
 336                (nil . "CNS11643.1992-7")
 337                (nil . "gbk-0")
 338                (nil . "gb18030")
 339                (nil . "JISX0213.2000-1")
 340                (nil . "JISX0213.2000-2"))
 341
 342      (hangul (nil . "KSC5601.1987-0"))
 343
 344      ;; for each charset
 345      (ascii (nil . "ISO8859-1"))
 346      (arabic-digit ("*" . "MuleArabic-0"))
 347      (arabic-1-column ("*" . "MuleArabic-1"))
 348      (arabic-2-column ("*" . "MuleArabic-2"))
 349      (indian-is13194 (nil . "is13194-devanagari"))
 350      (indian-1-column ("*" . "muleindian-2"))
 351      ;; Indian CDAC
 352      (devanagari-cdac (nil . "Devanagari-CDAC"))
 353      (sanskrit-cdac (nil . "Sanskrit-CDAC"))
 354      (bengali-cdac (nil . "Bengali-CDAC"))
 355      (assamese-cdac (nil . "Assamese-CDAC"))
 356      (punjabi-cdac (nil . "Punjabi-CDAC"))
 357      (gujarati-cdac (nil . "Gujarati-CDAC"))
 358      (oriya-cdac (nil . "Oriya-CDAC"))
 359      (tamil-cdac (nil . "Tamil-CDAC"))
 360      (telugu-cdac (nil . "Telugu-CDAC"))
 361      (kannada-cdac (nil . "Kannada-CDAC"))
 362      (malayalam-cdac (nil . "Malayalam-CDAC"))
 363      ;; Indian AKRUTI
 364      (devanagari-akruti (nil . "Devanagari-Akruti"))
 365      (bengali-akruti (nil . "Bengali-Akruti"))
 366      (punjabi-akruti (nil . "Punjabi-Akruti"))
 367      (gujarati-akruti (nil . "Gujarati-Akruti"))
 368      (oriya-akruti (nil . "Oriya-Akruti"))
 369      (tamil-akruti (nil . "Tamil-Akruti"))
 370      (telugu-akruti (nil . "Telugu-Akruti"))
 371      (kannada-akruti (nil . "Kannada-Akruti"))
 372      (malayalam-akruti (nil . "Malayalam-Akruti"))
 373      ;;(devanagari-glyph ("altsys-dv_ttsurekh" . "devanagari-cdac"))
 374      ;;(malayalam-glyph ("altsys-ml_ttkarthika" . "malayalam-cdac"))
 375      (ipa (nil . "MuleIPA-1"))
 376
 377      ;; Fallback fonts
 378      (nil (nil . "gb2312.1980")
 379           (nil . "gbk-0")
 380           (nil . "gb18030")
 381           (nil . "jisx0208")
 382           (nil . "ksc5601.1987")
 383           (nil . "CNS11643.1992-1")
 384           (nil . "CNS11643.1992-2")
 385           (nil . "CNS11643.1992-3")
 386           (nil . "CNS11643.1992-4")
 387           (nil . "CNS11643.1992-5")
 388           (nil . "CNS11643.1992-6")
 389           (nil . "CNS11643.1992-7")
 390           (nil . "big5")
 391           (nil . "jisx0213.2000-1")
 392           (nil . "jisx0213.2004-1")
 393           (nil . "jisx0212"))
 394      ))
 395
 396   ;; Append Unicode fonts.
 397   ;; This may find fonts with more variants (bold, italic) but which
 398   ;; don't cover many characters.
 399   (set-fontset-font "fontset-default" nil
 400                     '(nil . "iso10646-1") nil 'append)
 401   ;; These may find fonts that cover many characters but with fewer
 402   ;; variants.
 403   (set-fontset-font "fontset-default" nil
 404                     '("gnu-unifont" . "iso10646-1") nil 'append)
 405   (set-fontset-font "fontset-default" nil
 406                     '("mutt-clearlyu" . "iso10646-1") nil 'append))
 407
 408 ;; These are the registered registries/encodings from
 409 ;; ftp://ftp.x.org/pub/DOCS/registry 2001/06/01
 410
 411 ;; Name                                            Reference
 412 ;; ----                                            ---------
 413 ;; "DEC"                                           [27]
 414 ;;         registry prefix
 415 ;; "DEC.CNS11643.1986-2"                           [53]
 416 ;;         CNS11643 2-plane using the encoding
 417 ;;         suggested in that standard
 418 ;; "DEC.DTSCS.1990-2"                              [54]
 419 ;;         DEC Taiwan Supplemental Character Set
 420 ;; "fujitsu.u90x01.1991-0"                         [87]
 421 ;; "fujitsu.u90x03.1991-0"                         [87]
 422 ;; "GB2312.1980-0"                                 [39],[12]
 423 ;;         China (PRC) Hanzi, GL encoding
 424 ;; "GB2312.1980-1"                                 [39]
 425 ;;         (deprecated)
 426 ;;         China (PRC) Hanzi, GR encoding
 427 ;; "HP-Arabic8"                                    [36]
 428 ;;         HPARABIC8 8-bit character set
 429 ;; "HP-East8"                                      [36]
 430 ;;         HPEAST8 8-bit character set
 431 ;; "HP-Greek8"                                     [36]
 432 ;;         HPGREEK8 8-bit character set
 433 ;; "HP-Hebrew8"                                    [36]
 434 ;;         HPHEBREW8 8-bit character set
 435 ;; "HP-Japanese15"                                 [36]
 436 ;;         HPJAPAN15 15-bit characer set,
 437 ;;         modified from industry defacto
 438 ;;         standard Shift-JIS
 439 ;; "HP-Kana8"                                      [36]
 440 ;;         HPKANA8 8-bit character set
 441 ;; "HP-Korean15"                                   [36]
 442 ;;         HPKOREAN15 15-bit character set
 443 ;; "HP-Roman8"                                     [36]
 444 ;;         HPROMAN8 8-bit character set
 445 ;; "HP-SChinese15"                                 [36]
 446 ;;         HPSCHINA15 15-bit character set for
 447 ;;         support of Simplified Chinese
 448 ;; "HP-TChinese15"                                 [36]
 449 ;;         HPTCHINA15 15-bit character set for
 450 ;;         support of Traditional Chinese
 451 ;; "HP-Turkish8"                                   [36]
 452 ;;         HPTURKISH8 8-bit character set
 453 ;; "IPSYS"                                         [59]
 454 ;;         registry prefix
 455 ;; "IPSYS.IE-1"                                    [59]
 456 ;; "ISO2022"<REG>"-"<ENC>                          [44]
 457 ;; "ISO646.1991-IRV"                               [107]
 458 ;;         ISO 646 International Reference Version
 459 ;; "ISO8859-1"                                     [15],[12]
 460 ;;         ISO Latin alphabet No. 1
 461 ;; "ISO8859-2"                                     [15],[12]
 462 ;;         ISO Latin alphabet No. 2
 463 ;; "ISO8859-3"                                     [15],[12]
 464 ;;         ISO Latin alphabet No. 3
 465 ;; "ISO8859-4"                                     [15],[12]
 466 ;;         ISO Latin alphabet No. 4
 467 ;; "ISO8859-5"                                     [15],[12]
 468 ;;         ISO Latin/Cyrillic alphabet
 469 ;; "ISO8859-6"                                     [15],[12]
 470 ;;         ISO Latin/Arabic alphabet
 471 ;; "ISO8859-7"                                     [15],[12]
 472 ;;         ISO Latin/Greek alphabet
 473 ;; "ISO8859-8"                                     [15],[12]
 474 ;;         ISO Latin/Hebrew alphabet
 475 ;; "ISO8859-9"                                     [15],[12]
 476 ;;         ISO Latin alphabet No. 5
 477 ;; "ISO8859-10"                                    [15],[12]
 478 ;;         ISO Latin alphabet No. 6
 479 ;; "ISO8859-13"                                    [15],[12]
 480 ;;         ISO Latin alphabet No. 7
 481 ;; "ISO8859-14"                                    [15],[12]
 482 ;;         ISO Latin alphabet No. 8
 483 ;; "ISO8859-15"                                    [15],[12]
 484 ;;         ISO Latin alphabet No. 9
 485 ;; "FCD8859-15"                                    [7]
 486 ;;         (deprecated)
 487 ;;         ISO Latin alphabet No. 9, Final Committee Draft
 488 ;; "ISO10646-1"                                    [133]
 489 ;;         Unicode Universal Multiple-Octet Coded Character Set
 490 ;; "ISO10646-MES"                                  [133]
 491 ;;         (deprecated)
 492 ;;         Unicode Minimum European Subset
 493 ;; "JISX0201.1976-0"                               [38],[12]
 494 ;;         8-Bit Alphanumeric-Katakana Code
 495 ;; "JISX0208.1983-0"                               [40],[12]
 496 ;;         Japanese Graphic Character Set,
 497 ;;         GL encoding
 498 ;; "JISX0208.1990-0"                               [71]
 499 ;;         Japanese Graphic Character Set,
 500 ;;         GL encoding
 501 ;; "JISX0208.1983-1"                               [40]
 502 ;;         (deprecated)
 503 ;;         Japanese Graphic Character Set,
 504 ;;         GR encoding
 505 ;; "JISX0212.1990-0"                               [72]
 506 ;;         Supplementary Japanese Graphic Character Set,
 507 ;;         GL encoding
 508 ;; "KOI8-R"                                        [119]
 509 ;;         Cyrillic alphabet
 510 ;; "KSC5601.1987-0"                                [41],[12]
 511 ;;         Korean Graphic Character Set,
 512 ;;         GL encoding
 513 ;; "KSC5601.1987-1"                                [41]
 514 ;;         (deprecated)
 515 ;;         Korean Graphic Character Set,
 516 ;;         GR encoding
 517 ;; "omron_CNS11643-0"                              [45]
 518 ;; "omron_CNS11643-1"                              [45]
 519 ;; "omron_BIG5-0"                                  [45]
 520 ;; "omron_BIG5-1"                                  [45]
 521 ;; "wn.tamil.1993"                                 [103]
 522
 523 (defun set-font-encoding (pattern charset)
 524   "Set arguments in `font-encoding-alist' (which see)."
 525   (let ((slot (assoc pattern font-encoding-alist)))
 526     (if slot
 527         (setcdr slot charset)
 528       (setq font-encoding-alist
 529             (cons (cons pattern charset) font-encoding-alist)))))
 530
 531 ;; Setting for suppressing XLoadQueryFont on big fonts.
 532 (setq x-pixel-size-width-font-regexp
 533       "gb2312\\|gbk\\|gb18030\\|jisx0208\\|ksc5601\\|cns11643\\|big5")
 534
 535 ;; These fonts require vertical centering.
 536 (setq vertical-centering-font-regexp
 537       "gb2312\\|gbk\\|gb18030\\|jisx0208\\|jisx0212\\|ksc5601\\|cns11643\\|big5")
 538
 539 ;; CDAC fonts are actually smaller than their design sizes.
 540 (setq face-font-rescale-alist
 541       '(("-cdac$" . 1.3)))
 542
 543 (defvar x-font-name-charset-alist nil
 544   "This variable has no meaning now.  Just kept for backward compatibility.")
 545
 546 ;;; XLFD (X Logical Font Description) format handler.
 547
 548 ;; Define XLFD's field index numbers.           ; field name
 549 (defconst xlfd-regexp-family-subnum 0)          ; FOUNDRY and FAMILY
 550 (defconst xlfd-regexp-weight-subnum 1)          ; WEIGHT_NAME
 551 (defconst xlfd-regexp-slant-subnum 2)           ; SLANT
 552 (defconst xlfd-regexp-swidth-subnum 3)          ; SETWIDTH_NAME
 553 (defconst xlfd-regexp-adstyle-subnum 4)         ; ADD_STYLE_NAME
 554 (defconst xlfd-regexp-pixelsize-subnum 5)       ; PIXEL_SIZE
 555 (defconst xlfd-regexp-pointsize-subnum 6)       ; POINT_SIZE
 556 (defconst xlfd-regexp-resx-subnum 7)            ; RESOLUTION_X
 557 (defconst xlfd-regexp-resy-subnum 8)            ; RESOLUTION_Y
 558 (defconst xlfd-regexp-spacing-subnum 8)         ; SPACING
 559 (defconst xlfd-regexp-avgwidth-subnum 10)       ; AVERAGE_WIDTH
 560 (defconst xlfd-regexp-registry-subnum 11)       ; REGISTRY and ENCODING
 561
 562 ;; Regular expression matching against a fontname which conforms to
 563 ;; XLFD (X Logical Font Description).  All fields in XLFD should be
 564 ;; not be omitted (but can be a wild card) to be matched.
 565 (defconst xlfd-tight-regexp
 566   "^\
 567 -\\([^-]*-[^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)\
 568 -\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)\
 569 -\\([^-]*\\)-\\([^-]*\\)-\\([^-]*-[^-]*\\)$")
 570
 571 ;; Regular expression matching against a fontname which conforms to
 572 ;; XLFD (X Logical Font Description).  All fields in XLFD from FOUNDRY
 573 ;; to ADSTYLE, REGISTRY, and ENCODING should be not be omitted (but
 574 ;; can be a wild card) to be matched.
 575 (defconst xlfd-style-regexp
 576   "^\
 577 -\\([^-]*-[^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-.*\
 578 -\\([^-]*-[^-]*\\)$")
 579
 580 ;; List of field numbers of XLFD whose values are numeric.
 581 (defconst xlfd-regexp-numeric-subnums
 582   (list xlfd-regexp-pixelsize-subnum    ;5
 583         xlfd-regexp-pointsize-subnum    ;6
 584         xlfd-regexp-resx-subnum         ;7
 585         xlfd-regexp-resy-subnum         ;8
 586         xlfd-regexp-avgwidth-subnum     ;10
 587         ))
 588
 589 (defun x-decompose-font-name (pattern)
 590   "Decompose PATTERN into XLFD fields and return a vector of the fields.
 591 The length of the vector is 12.
 592 The FOUNDRY and FAMILY fields are concatinated and stored in the first
 593 element of the vector.
 594 The REGISTRY and ENCODING fields are concatinated and stored in the last
 595 element of the vector.
 596
 597 Return nil if PATTERN doesn't conform to XLFD."
 598   (if (string-match xlfd-tight-regexp pattern)
 599       (let ((xlfd-fields (make-vector 12 nil)))
 600         (dotimes (i 12)
 601           (aset xlfd-fields i (match-string (1+ i) pattern)))
 602         (dotimes (i 12)
 603           (if (string-match "^[*-]+$" (aref xlfd-fields i))
 604               (aset xlfd-fields i nil)))
 605         xlfd-fields)))
 606
 607 (defun x-compose-font-name (fields &optional reduce)
 608   "Compose X fontname from FIELDS.
 609 FIELDS is a vector of XLFD fields, of length 12.
 610 If a field is nil, wild-card letter `*' is embedded.
 611 Optional argument REDUCE exists just for backward compatibility,
 612 and is always ignored."
 613   (concat "-" (mapconcat (lambda (x) (or x "*")) fields "-")))
 614
 615
 616 (defun x-must-resolve-font-name (xlfd-fields)
 617   "Like `x-resolve-font-name', but always return a font name.
 618 XLFD-FIELDS is a vector of XLFD (X Logical Font Description) fields.
 619 If no font matching XLFD-FIELDS is available, successively replace
 620 parts of the font name pattern with \"*\" until some font is found.
 621 Value is name of that font."
 622   (let ((ascii-font nil) (index 0))
 623     (while (and (null ascii-font) (<= index xlfd-regexp-registry-subnum))
 624       (let ((pattern (x-compose-font-name xlfd-fields)))
 625         (condition-case nil
 626             (setq ascii-font (x-resolve-font-name pattern))
 627           (error
 628            (message "Warning: no fonts matching `%s' available" pattern)
 629            (aset xlfd-fields index "*")
 630            (setq index (1+ index))))))
 631     (unless ascii-font
 632       (error "No fonts found"))
 633     ascii-font))
 634
 635
 636 (defun x-complement-fontset-spec (xlfd-fields fontlist)
 637   "Complement elements of FONTLIST based on XLFD-FIELDS.
 638 XLFD-FIELDS is a vector of XLFD (X Logical Font Description) fields.
 639 FONTLIST is an alist of script names vs the corresponding font names.
 640
 641 The font names are complemented as below.
 642
 643 If a font name matches `xlfd-style-regexp', each field of wild card is
 644 replaced by the corresponding fields in XLFD-FIELDS."
 645   (let ((family (aref xlfd-fields xlfd-regexp-family-subnum))
 646         (weight (aref xlfd-fields xlfd-regexp-weight-subnum))
 647         (slant (aref xlfd-fields xlfd-regexp-slant-subnum))
 648         (width (aref xlfd-fields xlfd-regexp-swidth-subnum))
 649         (adstyle (aref xlfd-fields xlfd-regexp-adstyle-subnum))
 650         (registry (aref xlfd-fields xlfd-regexp-registry-subnum)))
 651     (if weight (setq weight (intern weight)))
 652     (if slant (setq slant (intern slant)))
 653     (if width (setq width (intern width)))
 654     (if adstyle (setq adstyle (intern adstyle)))
 655     (dolist (elt fontlist)
 656       (let ((name (cadr elt))
 657             args)
 658         (when (or (string-match xlfd-style-regexp name)
 659                   (and (setq name (car (x-list-fonts name nil nil 1)))
 660                        (string-match xlfd-style-regexp name)))
 661           (let ((fam (match-string (1+ xlfd-regexp-family-subnum) name))
 662                 (wei (match-string (1+ xlfd-regexp-weight-subnum) name))
 663                 (sla (match-string (1+ xlfd-regexp-slant-subnum) name))
 664                 (wid (match-string (1+ xlfd-regexp-swidth-subnum) name))
 665                 (ads (match-string (1+ xlfd-regexp-adstyle-subnum) name))
 666                 (reg (match-string (1+ xlfd-regexp-registry-subnum) name)))
 667             (if (or (and fam (setq fam (if (not (string-match "^[*?]*$" fam))
 668                                            fam)))
 669                     family)
 670                 (setq args (list :family (or fam family))))
 671             (if (or (and wei (setq wei (if (not (string-match "^[*?]*$" wei))
 672                                            (intern wei))))
 673                     weight)
 674                 (setq args (cons :weight (cons (or wei weight) args))))
 675             (if (or (and sla (setq sla (if (not (string-match "^[*?]*$" sla))
 676                                            (intern sla))))
 677                     slant)
 678                 (setq args (cons :slant (cons (or sla slant) args))))
 679             (if (or (and wid (setq wid (if (not (string-match "^[*?]*$" wid))
 680                                            (intern wid))))
 681                     width)
 682                 (setq args (cons :width (cons (or wid width) args))))
 683             (if (or (and ads (setq ads (if (not (string-match "^[*?]*$" ads))
 684                                            (intern ads))))
 685                     adstyle)
 686                 (setq args (cons :adstyle (cons (or ads adstyle) args))))
 687             (if (or (and reg (setq reg (if (not (string-match "^[*?]*$" reg))
 688                                            reg)))
 689                     registry)
 690                 (setq args (cons :registry (cons (or reg registry) args))))
 691             (setcar (cdr elt) (apply 'font-spec args))))))
 692     fontlist))
 693
 694 (defun fontset-name-p (fontset)
 695   "Return non-nil if FONTSET is valid as fontset name.
 696 A valid fontset name should conform to XLFD (X Logical Font Description)
 697 with \"fontset\" in `<CHARSET_REGISTRY>' field."
 698   (and (string-match xlfd-tight-regexp fontset)
 699        (string= (match-string (1+ xlfd-regexp-registry-subnum) fontset)
 700                 "fontset")))
 701
 702 (defun generate-fontset-menu ()
 703   "Return list to be appended to `x-fixed-font-alist'.
 704 Done when `mouse-set-font' is called."
 705   (let (l)
 706     (dolist (fontset (fontset-list))
 707       (or (string-match "fontset-default$" fontset)
 708           (push (list (fontset-plain-name fontset) fontset) l)))
 709     (cons "Fontset"
 710           (sort l #'(lambda (x y) (string< (car x) (car y)))))))
 711
 712 (defun fontset-plain-name (fontset)
 713   "Return a plain and descriptive name of FONTSET."
 714   (if (not (setq fontset (query-fontset fontset)))
 715       (error "Invalid fontset: %s" fontset))
 716   (let ((xlfd-fields (x-decompose-font-name fontset)))
 717     (if xlfd-fields
 718         (let ((family (aref xlfd-fields xlfd-regexp-family-subnum))
 719               (weight (aref xlfd-fields xlfd-regexp-weight-subnum))
 720               (slant  (aref xlfd-fields xlfd-regexp-slant-subnum))
 721               (swidth (aref xlfd-fields xlfd-regexp-swidth-subnum))
 722               (size   (aref xlfd-fields xlfd-regexp-pixelsize-subnum))
 723               (nickname (aref xlfd-fields xlfd-regexp-registry-subnum))
 724               name)
 725           (if (not (string-match "^fontset-\\(.*\\)$" nickname))
 726               (setq nickname family)
 727             (setq nickname (match-string 1 nickname)))
 728           (if (and size (> (string-to-number size) 0))
 729               (setq name (format "%s: %s-dot" nickname size))
 730             (setq name nickname))
 731           (and weight
 732                (cond ((string-match "^medium$" weight)
 733                       (setq name (concat name " " "medium")))
 734                      ((string-match "^bold$\\|^demibold$" weight)
 735                       (setq name (concat name " " weight)))))
 736           (and slant
 737                (cond ((string-match "^i$" slant)
 738                       (setq name (concat name " " "italic")))
 739                      ((string-match "^o$" slant)
 740                       (setq name (concat name " " "slant")))
 741                      ((string-match "^ri$" slant)
 742                       (setq name (concat name " " "reverse italic")))
 743                      ((string-match "^ro$" slant)
 744                       (setq name (concat name " " "reverse slant")))))
 745           name)
 746       fontset)))
 747
 748 (defvar charset-script-alist
 749   '((ascii . latin)
 750     (latin-iso8859-1 . latin)
 751     (latin-iso8859-2 . latin)
 752     (latin-iso8859-3 . latin)
 753     (latin-iso8859-4 . latin)
 754     (latin-iso8859-9 . latin)
 755     (latin-iso8859-10 . latin)
 756     (latin-iso8859-13 . latin)
 757     (latin-iso8859-14 . latin)
 758     (latin-iso8859-15 . latin)
 759     (latin-iso8859-16 . latin)
 760     (latin-jisx0201 . latin)
 761     (thai-tis620 . thai)
 762     (cyrillic-iso8859-5 . cyrillic)
 763     (arabic-iso8859-6 . arabic)
 764     (greek-iso8859-7 . latin)
 765     (hebrew-iso8859-8 . latin)
 766     (katakana-jisx0201 . kana)
 767     (chinese-gb2312 . han)
 768     (chinese-gbk . han)
 769     (gb18030-2-byte . han)
 770     (gb18030-4-byte-bmp . han)
 771     (gb18030-4-byte-ext-1 . han)
 772     (gb18030-4-byte-ext-2 . han)
 773     (gb18030-4-byte-smp . han)
 774     (chinese-big5-1 . han)
 775     (chinese-big5-2 . han)
 776     (chinese-cns11643-1 . han)
 777     (chinese-cns11643-2 . han)
 778     (chinese-cns11643-3 . han)
 779     (chinese-cns11643-4 . han)
 780     (chinese-cns11643-5 . han)
 781     (chinese-cns11643-6 . han)
 782     (chinese-cns11643-7 . han)
 783     (japanese-jisx0208 . han)
 784     (japanese-jisx0208-1978 . han)
 785     (japanese-jisx0212 . han)
 786     (japanese-jisx0213-1 . han)
 787     (japanese-jisx0213-2 . han)
 788     (korean-ksc5601 . hangul)
 789     (chinese-sisheng . bopomofo)
 790     (vietnamese-viscii-lower . latin)
 791     (vietnamese-viscii-upper . latin)
 792     (arabic-digit . arabic)
 793     (arabic-1-column . arabic)
 794     (arabic-2-column . arabic)
 795     (indian-is13194 . devanagari)
 796     (indian-glyph . devanagari)
 797     (indian-1-column . devanagari)
 798     (indian-2-column . devanagari)
 799     (tibetan-1-column . tibetan))
 800   "Alist of charsets vs the corresponding most appropriate scripts.
 801
 802 This alist is used by the function `create-fontset-from-fontset-spec'
 803 to map charsets to scripts.")
 804
 805 (defun create-fontset-from-fontset-spec (fontset-spec
 806                                          &optional style-variant noerror)
 807   "Create a fontset from fontset specification string FONTSET-SPEC.
 808 FONTSET-SPEC is a string of the format:
 809         FONTSET-NAME,SCRIPT0:FONT0,SCRIPT1:FONT1, ...
 810 Any number of SPACE, TAB, and NEWLINE can be put before and after commas.
 811
 812 When a frame uses the fontset as the `font' parameter, the frame's
 813 default font name is derived from FONTSET-NAME by substituting
 814 \"iso8859-1\" for the tail part \"fontset-XXX\".  But, if SCRIPT-NAMEn
 815 is \"ascii\", use the corresponding FONT-NAMEn as the default font
 816 name.
 817
 818 Optional 2nd and 3rd arguments exist just for backward compatibility,
 819 and are ignored.
 820
 821 It returns a name of the created fontset.
 822
 823 For backward compatibility, SCRIPT-NAME may be a charset name, in
 824 which case, the corresponding script is decided by the variable
 825 `charset-script-alist' (which see)."
 826   (or (string-match "^[^,]+" fontset-spec)
 827       (error "Invalid fontset spec: %s" fontset-spec))
 828   (let ((idx (match-end 0))
 829         (name (match-string 0 fontset-spec))
 830         xlfd-fields target script fontlist)
 831     (setq xlfd-fields (x-decompose-font-name name))
 832     (or xlfd-fields
 833         (error "Fontset name \"%s\" not conforming to XLFD" name))
 834
 835     ;; At first, extract pairs of charset and fontname from FONTSET-SPEC.
 836     (while (string-match "[, \t\n]*\\([^:]+\\):[ \t]*\\([^,]+\\)"
 837                          fontset-spec idx)
 838       (setq idx (match-end 0))
 839       (setq target (intern (match-string 1 fontset-spec)))
 840       (cond ((or (eq target 'ascii)
 841                  (memq target (char-table-extra-slot char-script-table 0)))
 842              (push (list target (match-string 2 fontset-spec)) fontlist))
 843             ((setq script (cdr (assq target charset-script-alist)))
 844              (push (list script (match-string 2 fontset-spec)) fontlist))
 845             ((charsetp target)
 846              (push (list target (match-string 2 fontset-spec)) fontlist))))
 847
 848     ;; Complement FONTLIST.
 849     (setq fontlist (x-complement-fontset-spec xlfd-fields fontlist))
 850
 851     ;; Create a fontset.
 852     (new-fontset name (nreverse fontlist))))
 853
 854 (defun create-fontset-from-ascii-font (font &optional resolved-font
 855                                             fontset-name)
 856   "Create a fontset from an ASCII font FONT.
 857
 858 Optional 2nd arg RESOLVED-FONT is a resolved name of FONT.
 859 If omitted, `x-resolve-font-name' is called to get the resolved name.
 860 At this time, if FONT is not available, an error is signaled.
 861
 862 Optional 3rd arg FONTSET-NAME is a string to be used in
 863 `<CHARSET_ENCODING>' fields of a new fontset name.  If it is omitted,
 864 an appropriate name is generated automatically.
 865
 866 It returns a name of the created fontset."
 867   (setq font (downcase font))
 868   (setq resolved-font
 869         (downcase (or resolved-font (x-resolve-font-name font))))
 870   (let ((xlfd (x-decompose-font-name resolved-font))
 871         fontset)
 872     (if fontset-name
 873         (setq fontset-name (downcase fontset-name))
 874       (if (query-fontset "fontset-startup")
 875           (setq fontset-name
 876                 (subst-char-in-string
 877                  ?- ?_ (aref xlfd xlfd-regexp-registry-subnum) t))
 878         (setq fontset-name "startup")))
 879     (aset xlfd xlfd-regexp-registry-subnum
 880           (format "fontset-%s" fontset-name))
 881     (setq fontset (x-compose-font-name xlfd))
 882     (or (query-fontset fontset)
 883         (create-fontset-from-fontset-spec (concat fontset ", ascii:" font)))))
 884
 885 \f
 886 ;; Create standard fontset from 16 dots fonts which are the most widely
 887 ;; installed fonts.  Fonts for Chinese-GB, Korean, and Chinese-CNS are
 888 ;; specified here because FAMILY of those fonts are not "fixed" in
 889 ;; many cases.
 890 (defvar standard-fontset-spec
 891   (purecopy "-*-fixed-medium-r-normal-*-16-*-*-*-*-*-fontset-standard")
 892   "String of fontset spec of the standard fontset.
 893 You have the biggest chance to display international characters
 894 with correct glyphs by using the standard fontset.
 895 See the documentation of `create-fontset-from-fontset-spec' for the format.")
 896
 897
 898 ;; Create fontsets from X resources of the name `fontset-N (class
 899 ;; Fontset-N)' where N is integer 0, 1, ...
 900 ;; The values of the resources the string of the same format as
 901 ;; `standard-fontset-spec'.
 902
 903 (defun create-fontset-from-x-resource ()
 904   (let ((idx 0)
 905         fontset-spec)
 906     (while (setq fontset-spec (x-get-resource (format "fontset-%d" idx)
 907                                               (format "Fontset-%d" idx)))
 908       (create-fontset-from-fontset-spec fontset-spec t 'noerror)
 909       (setq idx (1+ idx)))))
 910
 911 ;;
 912 (provide 'fontset)
 913
 914 ;;; arch-tag: bb53e629-0234-403c-950e-551e61554849
 915 ;;; fontset.el ends here