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 2, 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 (nil . "iso10646.indian-1"))
 268
 269      (lao  (nil . "MuleLao-1"))
 270
 271      (tai-viet ("TaiViet" . "iso10646-1"))
 272
 273      ;; both for script and charset.
 274      (tibetan (nil . "muletibetan-2"))
 275
 276      ;; both for script and charset.
 277      (ethiopic (nil . "ethiopic-unicode"))
 278
 279      (greek (nil . "ISO8859-7"))
 280
 281      (cyrillic (nil . "ISO8859-5")
 282                (nil . "microsoft-cp1251")
 283                (nil . "koi8-r"))
 284
 285      (arabic (nil . "MuleArabic-0")
 286              (nil . "MuleArabic-1")
 287              (nil . "MuleArabic-2")
 288              (nil . "ISO8859-6"))
 289
 290      (hebrew (nil . "ISO8859-8"))
 291
 292      (kana (nil . "JISX0208*")
 293            (nil . "GB2312.1980-0")
 294            (nil . "KSC5601.1987*")
 295            (nil . "JISX0201*")
 296            (nil . "JISX0213.2000-1")
 297            (nil . "JISX0213.2004-1"))
 298
 299      (bopomofo (nil . "sisheng_cwnn-0"))
 300
 301      (han (nil . "GB2312.1980-0")
 302           (nil . "JISX0208*")
 303           (nil . "JISX0212*")
 304           (nil . "big5*")
 305           (nil . "KSC5601.1987*")
 306           (nil . "CNS11643.1992-1")
 307           (nil . "CNS11643.1992-2")
 308           (nil . "CNS11643.1992-3")
 309           (nil . "CNS11643.1992-4")
 310           (nil . "CNS11643.1992-5")
 311           (nil . "CNS11643.1992-6")
 312           (nil . "CNS11643.1992-7")
 313           (nil . "gbk-0")
 314           (nil . "gb18030")
 315           (nil . "JISX0213.2000-1")
 316           (nil . "JISX0213.2000-2")
 317           (nil . "JISX0213.2004-1"))
 318
 319      (cjk-misc (nil . "GB2312.1980-0")
 320                (nil . "JISX0208*")
 321                (nil . "JISX0212*")
 322                (nil . "big5*")
 323                (nil . "KSC5601.1987*")
 324                (nil . "CNS11643.1992-1")
 325                (nil . "CNS11643.1992-2")
 326                (nil . "CNS11643.1992-3")
 327                (nil . "CNS11643.1992-4")
 328                (nil . "CNS11643.1992-5")
 329                (nil . "CNS11643.1992-6")
 330                (nil . "CNS11643.1992-7")
 331                (nil . "gbk-0")
 332                (nil . "gb18030")
 333                (nil . "JISX0213.2000-1")
 334                (nil . "JISX0213.2000-2"))
 335
 336      (hangul (nil . "KSC5601.1987-0"))
 337
 338      ;; for each charset
 339      (ascii (nil . "ISO8859-1"))
 340      (arabic-digit ("*" . "MuleArabic-0"))
 341      (arabic-1-column ("*" . "MuleArabic-1"))
 342      (arabic-2-column ("*" . "MuleArabic-2"))
 343      (indian-is13194 (nil . "is13194-devanagari"))
 344      (indian-1-column ("*" . "muleindian-2"))
 345      ;; Indian CDAC
 346      (devanagari-cdac (nil . "Devanagari-CDAC"))
 347      (sanskrit-cdac (nil . "Sanskrit-CDAC"))
 348      (bengali-cdac (nil . "Bengali-CDAC"))
 349      (assamese-cdac (nil . "Assamese-CDAC"))
 350      (punjabi-cdac (nil . "Punjabi-CDAC"))
 351      (gujarati-cdac (nil . "Gujarati-CDAC"))
 352      (oriya-cdac (nil . "Oriya-CDAC"))
 353      (tamil-cdac (nil . "Tamil-CDAC"))
 354      (telugu-cdac (nil . "Telugu-CDAC"))
 355      (kannada-cdac (nil . "Kannada-CDAC"))
 356      (malayalam-cdac (nil . "Malayalam-CDAC"))
 357      ;; Indian AKRUTI
 358      (devanagari-akruti (nil . "Devanagari-Akruti"))
 359      (bengali-akruti (nil . "Bengali-Akruti"))
 360      (punjabi-akruti (nil . "Punjabi-Akruti"))
 361      (gujarati-akruti (nil . "Gujarati-Akruti"))
 362      (oriya-akruti (nil . "Oriya-Akruti"))
 363      (tamil-akruti (nil . "Tamil-Akruti"))
 364      (telugu-akruti (nil . "Telugu-Akruti"))
 365      (kannada-akruti (nil . "Kannada-Akruti"))
 366      (malayalam-akruti (nil . "Malayalam-Akruti"))
 367      ;;(devanagari-glyph ("altsys-dv_ttsurekh" . "devanagari-cdac"))
 368      ;;(malayalam-glyph ("altsys-ml_ttkarthika" . "malayalam-cdac"))
 369      (ipa (nil . "MuleIPA-1"))
 370
 371      ;; Fallback fonts
 372      (nil (nil . "gb2312.1980")
 373           (nil . "gbk-0")
 374           (nil . "gb18030")
 375           (nil . "jisx0208")
 376           (nil . "ksc5601.1987")
 377           (nil . "CNS11643.1992-1")
 378           (nil . "CNS11643.1992-2")
 379           (nil . "CNS11643.1992-3")
 380           (nil . "CNS11643.1992-4")
 381           (nil . "CNS11643.1992-5")
 382           (nil . "CNS11643.1992-6")
 383           (nil . "CNS11643.1992-7")
 384           (nil . "big5")
 385           (nil . "jisx0213.2000-1")
 386           (nil . "jisx0213.2004-1")
 387           (nil . "jisx0212"))
 388      ))
 389
 390   ;; Append Unicode fonts.
 391   ;; This may find fonts with more variants (bold, italic) but which
 392   ;; don't cover many characters.
 393   (set-fontset-font "fontset-default" nil
 394                     '(nil . "iso10646-1") nil 'append)
 395   ;; These may find fonts that cover many characters but with fewer
 396   ;; variants.
 397   (set-fontset-font "fontset-default" nil
 398                     '("gnu-unifont" . "iso10646-1") nil 'append)
 399   (set-fontset-font "fontset-default" nil
 400                     '("mutt-clearlyu" . "iso10646-1") nil 'append))
 401
 402 ;; These are the registered registries/encodings from
 403 ;; ftp://ftp.x.org/pub/DOCS/registry 2001/06/01
 404
 405 ;; Name                                            Reference
 406 ;; ----                                            ---------
 407 ;; "DEC"                                           [27]
 408 ;;         registry prefix
 409 ;; "DEC.CNS11643.1986-2"                           [53]
 410 ;;         CNS11643 2-plane using the encoding
 411 ;;         suggested in that standard
 412 ;; "DEC.DTSCS.1990-2"                              [54]
 413 ;;         DEC Taiwan Supplemental Character Set
 414 ;; "fujitsu.u90x01.1991-0"                         [87]
 415 ;; "fujitsu.u90x03.1991-0"                         [87]
 416 ;; "GB2312.1980-0"                                 [39],[12]
 417 ;;         China (PRC) Hanzi, GL encoding
 418 ;; "GB2312.1980-1"                                 [39]
 419 ;;         (deprecated)
 420 ;;         China (PRC) Hanzi, GR encoding
 421 ;; "HP-Arabic8"                                    [36]
 422 ;;         HPARABIC8 8-bit character set
 423 ;; "HP-East8"                                      [36]
 424 ;;         HPEAST8 8-bit character set
 425 ;; "HP-Greek8"                                     [36]
 426 ;;         HPGREEK8 8-bit character set
 427 ;; "HP-Hebrew8"                                    [36]
 428 ;;         HPHEBREW8 8-bit character set
 429 ;; "HP-Japanese15"                                 [36]
 430 ;;         HPJAPAN15 15-bit characer set,
 431 ;;         modified from industry defacto
 432 ;;         standard Shift-JIS
 433 ;; "HP-Kana8"                                      [36]
 434 ;;         HPKANA8 8-bit character set
 435 ;; "HP-Korean15"                                   [36]
 436 ;;         HPKOREAN15 15-bit character set
 437 ;; "HP-Roman8"                                     [36]
 438 ;;         HPROMAN8 8-bit character set
 439 ;; "HP-SChinese15"                                 [36]
 440 ;;         HPSCHINA15 15-bit character set for
 441 ;;         support of Simplified Chinese
 442 ;; "HP-TChinese15"                                 [36]
 443 ;;         HPTCHINA15 15-bit character set for
 444 ;;         support of Traditional Chinese
 445 ;; "HP-Turkish8"                                   [36]
 446 ;;         HPTURKISH8 8-bit character set
 447 ;; "IPSYS"                                         [59]
 448 ;;         registry prefix
 449 ;; "IPSYS.IE-1"                                    [59]
 450 ;; "ISO2022"<REG>"-"<ENC>                          [44]
 451 ;; "ISO646.1991-IRV"                               [107]
 452 ;;         ISO 646 International Reference Version
 453 ;; "ISO8859-1"                                     [15],[12]
 454 ;;         ISO Latin alphabet No. 1
 455 ;; "ISO8859-2"                                     [15],[12]
 456 ;;         ISO Latin alphabet No. 2
 457 ;; "ISO8859-3"                                     [15],[12]
 458 ;;         ISO Latin alphabet No. 3
 459 ;; "ISO8859-4"                                     [15],[12]
 460 ;;         ISO Latin alphabet No. 4
 461 ;; "ISO8859-5"                                     [15],[12]
 462 ;;         ISO Latin/Cyrillic alphabet
 463 ;; "ISO8859-6"                                     [15],[12]
 464 ;;         ISO Latin/Arabic alphabet
 465 ;; "ISO8859-7"                                     [15],[12]
 466 ;;         ISO Latin/Greek alphabet
 467 ;; "ISO8859-8"                                     [15],[12]
 468 ;;         ISO Latin/Hebrew alphabet
 469 ;; "ISO8859-9"                                     [15],[12]
 470 ;;         ISO Latin alphabet No. 5
 471 ;; "ISO8859-10"                                    [15],[12]
 472 ;;         ISO Latin alphabet No. 6
 473 ;; "ISO8859-13"                                    [15],[12]
 474 ;;         ISO Latin alphabet No. 7
 475 ;; "ISO8859-14"                                    [15],[12]
 476 ;;         ISO Latin alphabet No. 8
 477 ;; "ISO8859-15"                                    [15],[12]
 478 ;;         ISO Latin alphabet No. 9
 479 ;; "FCD8859-15"                                    [7]
 480 ;;         (deprecated)
 481 ;;         ISO Latin alphabet No. 9, Final Committee Draft
 482 ;; "ISO10646-1"                                    [133]
 483 ;;         Unicode Universal Multiple-Octet Coded Character Set
 484 ;; "ISO10646-MES"                                  [133]
 485 ;;         (deprecated)
 486 ;;         Unicode Minimum European Subset
 487 ;; "JISX0201.1976-0"                               [38],[12]
 488 ;;         8-Bit Alphanumeric-Katakana Code
 489 ;; "JISX0208.1983-0"                               [40],[12]
 490 ;;         Japanese Graphic Character Set,
 491 ;;         GL encoding
 492 ;; "JISX0208.1990-0"                               [71]
 493 ;;         Japanese Graphic Character Set,
 494 ;;         GL encoding
 495 ;; "JISX0208.1983-1"                               [40]
 496 ;;         (deprecated)
 497 ;;         Japanese Graphic Character Set,
 498 ;;         GR encoding
 499 ;; "JISX0212.1990-0"                               [72]
 500 ;;         Supplementary Japanese Graphic Character Set,
 501 ;;         GL encoding
 502 ;; "KOI8-R"                                        [119]
 503 ;;         Cyrillic alphabet
 504 ;; "KSC5601.1987-0"                                [41],[12]
 505 ;;         Korean Graphic Character Set,
 506 ;;         GL encoding
 507 ;; "KSC5601.1987-1"                                [41]
 508 ;;         (deprecated)
 509 ;;         Korean Graphic Character Set,
 510 ;;         GR encoding
 511 ;; "omron_CNS11643-0"                              [45]
 512 ;; "omron_CNS11643-1"                              [45]
 513 ;; "omron_BIG5-0"                                  [45]
 514 ;; "omron_BIG5-1"                                  [45]
 515 ;; "wn.tamil.1993"                                 [103]
 516
 517 (defun set-font-encoding (pattern charset)
 518   "Set arguments in `font-encoding-alist' (which see)."
 519   (let ((slot (assoc pattern font-encoding-alist)))
 520     (if slot
 521         (setcdr slot charset)
 522       (setq font-encoding-alist
 523             (cons (cons pattern charset) font-encoding-alist)))))
 524
 525 ;; Setting for suppressing XLoadQueryFont on big fonts.
 526 (setq x-pixel-size-width-font-regexp
 527       "gb2312\\|gbk\\|gb18030\\|jisx0208\\|ksc5601\\|cns11643\\|big5")
 528
 529 ;; These fonts require vertical centering.
 530 (setq vertical-centering-font-regexp
 531       "gb2312\\|gbk\\|gb18030\\|jisx0208\\|jisx0212\\|ksc5601\\|cns11643\\|big5")
 532
 533 ;; CDAC fonts are actually smaller than their design sizes.
 534 (setq face-font-rescale-alist
 535       '(("-cdac$" . 1.3)))
 536
 537 (defvar x-font-name-charset-alist nil
 538   "This variable has no meaning now.  Just kept for backward compatibility.")
 539
 540 ;;; XLFD (X Logical Font Description) format handler.
 541
 542 ;; Define XLFD's field index numbers.           ; field name
 543 (defconst xlfd-regexp-family-subnum 0)          ; FOUNDRY and FAMILY
 544 (defconst xlfd-regexp-weight-subnum 1)          ; WEIGHT_NAME
 545 (defconst xlfd-regexp-slant-subnum 2)           ; SLANT
 546 (defconst xlfd-regexp-swidth-subnum 3)          ; SETWIDTH_NAME
 547 (defconst xlfd-regexp-adstyle-subnum 4)         ; ADD_STYLE_NAME
 548 (defconst xlfd-regexp-pixelsize-subnum 5)       ; PIXEL_SIZE
 549 (defconst xlfd-regexp-pointsize-subnum 6)       ; POINT_SIZE
 550 (defconst xlfd-regexp-resx-subnum 7)            ; RESOLUTION_X
 551 (defconst xlfd-regexp-resy-subnum 8)            ; RESOLUTION_Y
 552 (defconst xlfd-regexp-spacing-subnum 8)         ; SPACING
 553 (defconst xlfd-regexp-avgwidth-subnum 10)       ; AVERAGE_WIDTH
 554 (defconst xlfd-regexp-registry-subnum 11)       ; REGISTRY and ENCODING
 555
 556 ;; Regular expression matching against a fontname which conforms to
 557 ;; XLFD (X Logical Font Description).  All fields in XLFD should be
 558 ;; not be omitted (but can be a wild card) to be matched.
 559 (defconst xlfd-tight-regexp
 560   "^\
 561 -\\([^-]*-[^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)\
 562 -\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)\
 563 -\\([^-]*\\)-\\([^-]*\\)-\\([^-]*-[^-]*\\)$")
 564
 565 ;; Regular expression matching against a fontname which conforms to
 566 ;; XLFD (X Logical Font Description).  All fields in XLFD from FOUNDRY
 567 ;; to ADSTYLE, REGISTRY, and ENCODING should be not be omitted (but
 568 ;; can be a wild card) to be matched.
 569 (defconst xlfd-style-regexp
 570   "^\
 571 -\\([^-]*-[^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-.*\
 572 -\\([^-]*-[^-]*\\)$")
 573
 574 ;; List of field numbers of XLFD whose values are numeric.
 575 (defconst xlfd-regexp-numeric-subnums
 576   (list xlfd-regexp-pixelsize-subnum    ;5
 577         xlfd-regexp-pointsize-subnum    ;6
 578         xlfd-regexp-resx-subnum         ;7
 579         xlfd-regexp-resy-subnum         ;8
 580         xlfd-regexp-avgwidth-subnum     ;10
 581         ))
 582
 583 (defun x-decompose-font-name (pattern)
 584   "Decompose PATTERN into XLFD fields and return a vector of the fields.
 585 The length of the vector is 12.
 586 The FOUNDRY and FAMILY fields are concatinated and stored in the first
 587 element of the vector.
 588 The REGISTRY and ENCODING fields are concatinated and stored in the last
 589 element of the vector.
 590
 591 Return nil if PATTERN doesn't conform to XLFD."
 592   (if (string-match xlfd-tight-regexp pattern)
 593       (let ((xlfd-fields (make-vector 12 nil)))
 594         (dotimes (i 12)
 595           (aset xlfd-fields i (match-string (1+ i) pattern)))
 596         (dotimes (i 12)
 597           (if (string-match "^[*-]+$" (aref xlfd-fields i))
 598               (aset xlfd-fields i nil)))
 599         xlfd-fields)))
 600
 601 (defun x-compose-font-name (fields &optional reduce)
 602   "Compose X fontname from FIELDS.
 603 FIELDS is a vector of XLFD fields, of length 12.
 604 If a field is nil, wild-card letter `*' is embedded.
 605 Optional argument REDUCE exists just for backward compatibility,
 606 and is always ignored."
 607   (concat "-" (mapconcat (lambda (x) (or x "*")) fields "-")))
 608
 609
 610 (defun x-must-resolve-font-name (xlfd-fields)
 611   "Like `x-resolve-font-name', but always return a font name.
 612 XLFD-FIELDS is a vector of XLFD (X Logical Font Description) fields.
 613 If no font matching XLFD-FIELDS is available, successively replace
 614 parts of the font name pattern with \"*\" until some font is found.
 615 Value is name of that font."
 616   (let ((ascii-font nil) (index 0))
 617     (while (and (null ascii-font) (<= index xlfd-regexp-registry-subnum))
 618       (let ((pattern (x-compose-font-name xlfd-fields)))
 619         (condition-case nil
 620             (setq ascii-font (x-resolve-font-name pattern))
 621           (error
 622            (message "Warning: no fonts matching `%s' available" pattern)
 623            (aset xlfd-fields index "*")
 624            (setq index (1+ index))))))
 625     (unless ascii-font
 626       (error "No fonts found"))
 627     ascii-font))
 628
 629
 630 (defun x-complement-fontset-spec (xlfd-fields fontlist)
 631   "Complement elements of FONTLIST based on XLFD-FIELDS.
 632 XLFD-FIELDS is a vector of XLFD (X Logical Font Description) fields.
 633 FONTLIST is an alist of script names vs the corresponding font names.
 634
 635 The font names are complemented as below.
 636
 637 If a font name matches `xlfd-style-regexp', each field of wild card is
 638 replaced by the corresponding fields in XLFD-FIELDS."
 639   (let ((default-spec (vector (aref xlfd-fields xlfd-regexp-family-subnum)
 640                               (aref xlfd-fields xlfd-regexp-weight-subnum)
 641                               (aref xlfd-fields xlfd-regexp-slant-subnum)
 642                               (aref xlfd-fields xlfd-regexp-swidth-subnum)
 643                               (aref xlfd-fields xlfd-regexp-adstyle-subnum)
 644                               (aref xlfd-fields xlfd-regexp-registry-subnum))))
 645     (dolist (elt fontlist)
 646       (let ((name (cadr elt))
 647             font-spec)
 648         (when (or (string-match xlfd-style-regexp name)
 649                   (and (setq name (car (x-list-fonts name nil nil 1)))
 650                        (string-match xlfd-style-regexp name)))
 651           (setq font-spec (make-vector 6 nil))
 652           (dotimes (i 6)
 653             (aset font-spec i (match-string (1+ i) name)))
 654           (dotimes (i 5)
 655             (if (string-match "^[*-]+$" (aref font-spec i))
 656                 (aset font-spec i (aref default-spec i))))
 657           (setcar (cdr elt) font-spec))))
 658
 659     fontlist))
 660
 661 (defun fontset-name-p (fontset)
 662   "Return non-nil if FONTSET is valid as fontset name.
 663 A valid fontset name should conform to XLFD (X Logical Font Description)
 664 with \"fontset\" in `<CHARSET_REGISTRY>' field."
 665   (and (string-match xlfd-tight-regexp fontset)
 666        (string= (match-string (1+ xlfd-regexp-registry-subnum) fontset)
 667                 "fontset")))
 668
 669 (defun generate-fontset-menu ()
 670   "Return list to be appended to `x-fixed-font-alist'.
 671 Done when `mouse-set-font' is called."
 672   (let (l)
 673     (dolist (fontset (fontset-list))
 674       (or (string-match "fontset-default$" fontset)
 675           (push (list (fontset-plain-name fontset) fontset) l)))
 676     (cons "Fontset"
 677           (sort l #'(lambda (x y) (string< (car x) (car y)))))))
 678
 679 (defun fontset-plain-name (fontset)
 680   "Return a plain and descriptive name of FONTSET."
 681   (if (not (setq fontset (query-fontset fontset)))
 682       (error "Invalid fontset: %s" fontset))
 683   (let ((xlfd-fields (x-decompose-font-name fontset)))
 684     (if xlfd-fields
 685         (let ((family (aref xlfd-fields xlfd-regexp-family-subnum))
 686               (weight (aref xlfd-fields xlfd-regexp-weight-subnum))
 687               (slant  (aref xlfd-fields xlfd-regexp-slant-subnum))
 688               (swidth (aref xlfd-fields xlfd-regexp-swidth-subnum))
 689               (size   (aref xlfd-fields xlfd-regexp-pixelsize-subnum))
 690               (nickname (aref xlfd-fields xlfd-regexp-registry-subnum))
 691               name)
 692           (if (not (string-match "^fontset-\\(.*\\)$" nickname))
 693               (setq nickname family)
 694             (setq nickname (match-string 1 nickname)))
 695           (if (and size (> (string-to-number size) 0))
 696               (setq name (format "%s: %s-dot" nickname size))
 697             (setq name nickname))
 698           (and weight
 699                (cond ((string-match "^medium$" weight)
 700                       (setq name (concat name " " "medium")))
 701                      ((string-match "^bold$\\|^demibold$" weight)
 702                       (setq name (concat name " " weight)))))
 703           (and slant
 704                (cond ((string-match "^i$" slant)
 705                       (setq name (concat name " " "italic")))
 706                      ((string-match "^o$" slant)
 707                       (setq name (concat name " " "slant")))
 708                      ((string-match "^ri$" slant)
 709                       (setq name (concat name " " "reverse italic")))
 710                      ((string-match "^ro$" slant)
 711                       (setq name (concat name " " "reverse slant")))))
 712           name)
 713       fontset)))
 714
 715 (defvar charset-script-alist
 716   '((ascii . latin)
 717     (latin-iso8859-1 . latin)
 718     (latin-iso8859-2 . latin)
 719     (latin-iso8859-3 . latin)
 720     (latin-iso8859-4 . latin)
 721     (latin-iso8859-9 . latin)
 722     (latin-iso8859-10 . latin)
 723     (latin-iso8859-13 . latin)
 724     (latin-iso8859-14 . latin)
 725     (latin-iso8859-15 . latin)
 726     (latin-iso8859-16 . latin)
 727     (latin-jisx0201 . latin)
 728     (thai-tis620 . thai)
 729     (cyrillic-iso8859-5 . cyrillic)
 730     (arabic-iso8859-6 . arabic)
 731     (greek-iso8859-7 . latin)
 732     (hebrew-iso8859-8 . latin)
 733     (katakana-jisx0201 . kana)
 734     (chinese-gb2312 . han)
 735     (chinese-gbk . han)
 736     (gb18030-2-byte . han)
 737     (gb18030-4-byte-bmp . han)
 738     (gb18030-4-byte-ext-1 . han)
 739     (gb18030-4-byte-ext-2 . han)
 740     (gb18030-4-byte-smp . han)
 741     (chinese-big5-1 . han)
 742     (chinese-big5-2 . han)
 743     (chinese-cns11643-1 . han)
 744     (chinese-cns11643-2 . han)
 745     (chinese-cns11643-3 . han)
 746     (chinese-cns11643-4 . han)
 747     (chinese-cns11643-5 . han)
 748     (chinese-cns11643-6 . han)
 749     (chinese-cns11643-7 . han)
 750     (japanese-jisx0208 . han)
 751     (japanese-jisx0208-1978 . han)
 752     (japanese-jisx0212 . han)
 753     (japanese-jisx0213-1 . han)
 754     (japanese-jisx0213-2 . han)
 755     (korean-ksc5601 . hangul)
 756     (chinese-sisheng . bopomofo)
 757     (vietnamese-viscii-lower . latin)
 758     (vietnamese-viscii-upper . latin)
 759     (arabic-digit . arabic)
 760     (arabic-1-column . arabic)
 761     (arabic-2-column . arabic)
 762     (indian-is13194 . devanagari)
 763     (indian-glyph . devanagari)
 764     (indian-1-column . devanagari)
 765     (indian-2-column . devanagari)
 766     (tibetan-1-column . tibetan))
 767   "Alist of charsets vs the corresponding most appropriate scripts.
 768
 769 This alist is used by the function `create-fontset-from-fontset-spec'
 770 to map charsets to scripts.")
 771
 772 (defun create-fontset-from-fontset-spec (fontset-spec
 773                                          &optional style-variant noerror)
 774   "Create a fontset from fontset specification string FONTSET-SPEC.
 775 FONTSET-SPEC is a string of the format:
 776         FONTSET-NAME,SCRIPT0:FONT0,SCRIPT1:FONT1, ...
 777 Any number of SPACE, TAB, and NEWLINE can be put before and after commas.
 778
 779 When a frame uses the fontset as the `font' parameter, the frame's
 780 default font name is derived from FONTSET-NAME by substituting
 781 \"iso8859-1\" for the tail part \"fontset-XXX\".  But, if SCRIPT-NAMEn
 782 is \"ascii\", use the corresponding FONT-NAMEn as the default font
 783 name.
 784
 785 Optional 2nd and 3rd arguments exist just for backward compatibility,
 786 and are ignored.
 787
 788 It returns a name of the created fontset.
 789
 790 For backward compatibility, SCRIPT-NAME may be a charset name, in
 791 which case, the corresponding script is decided by the variable
 792 `charset-script-alist' (which see)."
 793   (or (string-match "^[^,]+" fontset-spec)
 794       (error "Invalid fontset spec: %s" fontset-spec))
 795   (let ((idx (match-end 0))
 796         (name (match-string 0 fontset-spec))
 797         xlfd-fields target script fontlist)
 798     (setq xlfd-fields (x-decompose-font-name name))
 799     (or xlfd-fields
 800         (error "Fontset name \"%s\" not conforming to XLFD" name))
 801
 802     ;; At first, extract pairs of charset and fontname from FONTSET-SPEC.
 803     (while (string-match "[, \t\n]*\\([^:]+\\):[ \t]*\\([^,]+\\)"
 804                          fontset-spec idx)
 805       (setq idx (match-end 0))
 806       (setq target (intern (match-string 1 fontset-spec)))
 807       (cond ((or (eq target 'ascii)
 808                  (memq target (char-table-extra-slot char-script-table 0)))
 809              (push (list target (match-string 2 fontset-spec)) fontlist))
 810             ((setq script (cdr (assq target charset-script-alist)))
 811              (push (list script (match-string 2 fontset-spec)) fontlist))
 812             ((charsetp target)
 813              (push (list target (match-string 2 fontset-spec)) fontlist))))
 814
 815     ;; Complement FONTLIST.
 816     (setq fontlist (x-complement-fontset-spec xlfd-fields fontlist))
 817
 818     ;; Create a fontset.
 819     (new-fontset name (nreverse fontlist))))
 820
 821 (defun create-fontset-from-ascii-font (font &optional resolved-font
 822                                             fontset-name)
 823   "Create a fontset from an ASCII font FONT.
 824
 825 Optional 2nd arg RESOLVED-FONT is a resolved name of FONT.
 826 If omitted, `x-resolve-font-name' is called to get the resolved name.
 827 At this time, if FONT is not available, an error is signaled.
 828
 829 Optional 3rd arg FONTSET-NAME is a string to be used in
 830 `<CHARSET_ENCODING>' fields of a new fontset name.  If it is omitted,
 831 an appropriate name is generated automatically.
 832
 833 It returns a name of the created fontset."
 834   (setq font (downcase font))
 835   (setq resolved-font
 836         (downcase (or resolved-font (x-resolve-font-name font))))
 837   (let ((xlfd (x-decompose-font-name resolved-font))
 838         fontset)
 839     (if fontset-name
 840         (setq fontset-name (downcase fontset-name))
 841       (if (query-fontset "fontset-startup")
 842           (setq fontset-name
 843                 (subst-char-in-string
 844                  ?- ?_ (aref xlfd xlfd-regexp-registry-subnum) t))
 845         (setq fontset-name "startup")))
 846     (aset xlfd xlfd-regexp-registry-subnum
 847           (format "fontset-%s" fontset-name))
 848     (setq fontset (x-compose-font-name xlfd))
 849     (or (query-fontset fontset)
 850         (create-fontset-from-fontset-spec (concat fontset ", ascii:" font)))))
 851
 852 \f
 853 ;; Create standard fontset from 16 dots fonts which are the most widely
 854 ;; installed fonts.  Fonts for Chinese-GB, Korean, and Chinese-CNS are
 855 ;; specified here because FAMILY of those fonts are not "fixed" in
 856 ;; many cases.
 857 (defvar standard-fontset-spec
 858   (purecopy "-*-fixed-medium-r-normal-*-16-*-*-*-*-*-fontset-standard")
 859   "String of fontset spec of the standard fontset.
 860 You have the biggest chance to display international characters
 861 with correct glyphs by using the standard fontset.
 862 See the documentation of `create-fontset-from-fontset-spec' for the format.")
 863
 864
 865 ;; Create fontsets from X resources of the name `fontset-N (class
 866 ;; Fontset-N)' where N is integer 0, 1, ...
 867 ;; The values of the resources the string of the same format as
 868 ;; `standard-fontset-spec'.
 869
 870 (defun create-fontset-from-x-resource ()
 871   (let ((idx 0)
 872         fontset-spec)
 873     (while (setq fontset-spec (x-get-resource (format "fontset-%d" idx)
 874                                               (format "Fontset-%d" idx)))
 875       (create-fontset-from-fontset-spec fontset-spec t 'noerror)
 876       (setq idx (1+ idx)))))
 877
 878 ;;
 879 (provide 'fontset)
 880
 881 ;;; arch-tag: bb53e629-0234-403c-950e-551e61554849
 882 ;;; fontset.el ends here