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  Free Software Foundation, Inc.
   5 ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
   6 ;;   2005, 2006
   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      ;; both for script and charset.
 272      (tibetan (nil . "muletibetan-2"))
 273
 274      ;; both for script and charset.
 275      (ethiopic (nil . "ethiopic-unicode"))
 276
 277      (greek (nil . "ISO8859-7"))
 278
 279      (cyrillic (nil . "ISO8859-5")
 280                (nil . "microsoft-cp1251")
 281                (nil . "koi8-r"))
 282
 283      (arabic (nil . "MuleArabic-0")
 284              (nil . "MuleArabic-1")
 285              (nil . "MuleArabic-2")
 286              (nil . "ISO8859-6"))
 287
 288      (hebrew (nil . "ISO8859-8"))
 289
 290      (kana (nil . "JISX0208*")
 291            (nil . "GB2312.1980-0")
 292            (nil . "KSC5601.1987*")
 293            (nil . "JISX0201*")
 294            (nil . "JISX0213.2000-1")
 295            (nil . "JISX0213.2004-1"))
 296
 297      (bopomofo (nil . "sisheng_cwnn-0"))
 298
 299      (han (nil . "GB2312.1980-0")
 300           (nil . "JISX0208*")
 301           (nil . "JISX0212*")
 302           (nil . "big5*")
 303           (nil . "KSC5601.1987*")
 304           (nil . "CNS11643.1992-1")
 305           (nil . "CNS11643.1992-2")
 306           (nil . "CNS11643.1992-3")
 307           (nil . "CNS11643.1992-4")
 308           (nil . "CNS11643.1992-5")
 309           (nil . "CNS11643.1992-6")
 310           (nil . "CNS11643.1992-7")
 311           (nil . "gbk-0")
 312           (nil . "gb18030")
 313           (nil . "JISX0213.2000-1")
 314           (nil . "JISX0213.2000-2")
 315           (nil . "JISX0213.2004-1"))
 316
 317      (cjk-misc (nil . "GB2312.1980-0")
 318                (nil . "JISX0208*")
 319                (nil . "JISX0212*")
 320                (nil . "big5*")
 321                (nil . "KSC5601.1987*")
 322                (nil . "CNS11643.1992-1")
 323                (nil . "CNS11643.1992-2")
 324                (nil . "CNS11643.1992-3")
 325                (nil . "CNS11643.1992-4")
 326                (nil . "CNS11643.1992-5")
 327                (nil . "CNS11643.1992-6")
 328                (nil . "CNS11643.1992-7")
 329                (nil . "gbk-0")
 330                (nil . "gb18030")
 331                (nil . "JISX0213.2000-1")
 332                (nil . "JISX0213.2000-2"))
 333
 334      (hangul (nil . "KSC5601.1987-0"))
 335
 336      ;; for each charset
 337      (ascii (nil . "ISO8859-1"))
 338      (arabic-digit ("*" . "MuleArabic-0"))
 339      (arabic-1-column ("*" . "MuleArabic-1"))
 340      (arabic-2-column ("*" . "MuleArabic-2"))
 341      (indian-is13194 (nil . "is13194-devanagari"))
 342      (indian-1-column ("*" . "muleindian-2"))
 343      ;; Indian CDAC
 344      (devanagari-cdac (nil . "Devanagari-CDAC"))
 345      (sanskrit-cdac (nil . "Sanskrit-CDAC"))
 346      (bengali-cdac (nil . "Bengali-CDAC"))
 347      (assamese-cdac (nil . "Assamese-CDAC"))
 348      (punjabi-cdac (nil . "Punjabi-CDAC"))
 349      (gujarati-cdac (nil . "Gujarati-CDAC"))
 350      (oriya-cdac (nil . "Oriya-CDAC"))
 351      (tamil-cdac (nil . "Tamil-CDAC"))
 352      (telugu-cdac (nil . "Telugu-CDAC"))
 353      (kannada-cdac (nil . "Kannada-CDAC"))
 354      (malayalam-cdac (nil . "Malayalam-CDAC"))
 355      ;; Indian AKRUTI
 356      (devanagari-akruti (nil . "Devanagari-Akruti"))
 357      (bengali-akruti (nil . "Bengali-Akruti"))
 358      (punjabi-akruti (nil . "Punjabi-Akruti"))
 359      (gujarati-akruti (nil . "Gujarati-Akruti"))
 360      (oriya-akruti (nil . "Oriya-Akruti"))
 361      (tamil-akruti (nil . "Tamil-Akruti"))
 362      (telugu-akruti (nil . "Telugu-Akruti"))
 363      (kannada-akruti (nil . "Kannada-Akruti"))
 364      (malayalam-akruti (nil . "Malayalam-Akruti"))
 365      ;;(devanagari-glyph ("altsys-dv_ttsurekh" . "devanagari-cdac"))
 366      ;;(malayalam-glyph ("altsys-ml_ttkarthika" . "malayalam-cdac"))
 367      (ipa (nil . "MuleIPA-1"))
 368
 369      ;; Fallback fonts
 370      (nil (nil . "gb2312.1980")
 371           (nil . "gbk-0")
 372           (nil . "gb18030")
 373           (nil . "jisx0208")
 374           (nil . "ksc5601.1987")
 375           (nil . "CNS11643.1992-1")
 376           (nil . "CNS11643.1992-2")
 377           (nil . "CNS11643.1992-3")
 378           (nil . "CNS11643.1992-4")
 379           (nil . "CNS11643.1992-5")
 380           (nil . "CNS11643.1992-6")
 381           (nil . "CNS11643.1992-7")
 382           (nil . "big5")
 383           (nil . "jisx0213.2000-1")
 384           (nil . "jisx0213.2004-1")
 385           (nil . "jisx0212"))
 386      ))
 387
 388   ;; Append Unicode fonts.
 389   ;; This may find fonts with more variants (bold, italic) but which
 390   ;; don't cover many characters.
 391   (set-fontset-font "fontset-default" nil
 392                     '(nil . "iso10646-1") nil 'append)
 393   ;; These may find fonts that cover many characters but with fewer
 394   ;; variants.
 395   (set-fontset-font "fontset-default" nil
 396                     '("gnu-unifont" . "iso10646-1") nil 'append)
 397   (set-fontset-font "fontset-default" nil
 398                     '("mutt-clearlyu" . "iso10646-1") nil 'append))
 399
 400 ;; These are the registered registries/encodings from
 401 ;; ftp://ftp.x.org/pub/DOCS/registry 2001/06/01
 402
 403 ;; Name                                            Reference
 404 ;; ----                                            ---------
 405 ;; "DEC"                                           [27]
 406 ;;         registry prefix
 407 ;; "DEC.CNS11643.1986-2"                           [53]
 408 ;;         CNS11643 2-plane using the encoding
 409 ;;         suggested in that standard
 410 ;; "DEC.DTSCS.1990-2"                              [54]
 411 ;;         DEC Taiwan Supplemental Character Set
 412 ;; "fujitsu.u90x01.1991-0"                         [87]
 413 ;; "fujitsu.u90x03.1991-0"                         [87]
 414 ;; "GB2312.1980-0"                                 [39],[12]
 415 ;;         China (PRC) Hanzi, GL encoding
 416 ;; "GB2312.1980-1"                                 [39]
 417 ;;         (deprecated)
 418 ;;         China (PRC) Hanzi, GR encoding
 419 ;; "HP-Arabic8"                                    [36]
 420 ;;         HPARABIC8 8-bit character set
 421 ;; "HP-East8"                                      [36]
 422 ;;         HPEAST8 8-bit character set
 423 ;; "HP-Greek8"                                     [36]
 424 ;;         HPGREEK8 8-bit character set
 425 ;; "HP-Hebrew8"                                    [36]
 426 ;;         HPHEBREW8 8-bit character set
 427 ;; "HP-Japanese15"                                 [36]
 428 ;;         HPJAPAN15 15-bit characer set,
 429 ;;         modified from industry defacto
 430 ;;         standard Shift-JIS
 431 ;; "HP-Kana8"                                      [36]
 432 ;;         HPKANA8 8-bit character set
 433 ;; "HP-Korean15"                                   [36]
 434 ;;         HPKOREAN15 15-bit character set
 435 ;; "HP-Roman8"                                     [36]
 436 ;;         HPROMAN8 8-bit character set
 437 ;; "HP-SChinese15"                                 [36]
 438 ;;         HPSCHINA15 15-bit character set for
 439 ;;         support of Simplified Chinese
 440 ;; "HP-TChinese15"                                 [36]
 441 ;;         HPTCHINA15 15-bit character set for
 442 ;;         support of Traditional Chinese
 443 ;; "HP-Turkish8"                                   [36]
 444 ;;         HPTURKISH8 8-bit character set
 445 ;; "IPSYS"                                         [59]
 446 ;;         registry prefix
 447 ;; "IPSYS.IE-1"                                    [59]
 448 ;; "ISO2022"<REG>"-"<ENC>                          [44]
 449 ;; "ISO646.1991-IRV"                               [107]
 450 ;;         ISO 646 International Reference Version
 451 ;; "ISO8859-1"                                     [15],[12]
 452 ;;         ISO Latin alphabet No. 1
 453 ;; "ISO8859-2"                                     [15],[12]
 454 ;;         ISO Latin alphabet No. 2
 455 ;; "ISO8859-3"                                     [15],[12]
 456 ;;         ISO Latin alphabet No. 3
 457 ;; "ISO8859-4"                                     [15],[12]
 458 ;;         ISO Latin alphabet No. 4
 459 ;; "ISO8859-5"                                     [15],[12]
 460 ;;         ISO Latin/Cyrillic alphabet
 461 ;; "ISO8859-6"                                     [15],[12]
 462 ;;         ISO Latin/Arabic alphabet
 463 ;; "ISO8859-7"                                     [15],[12]
 464 ;;         ISO Latin/Greek alphabet
 465 ;; "ISO8859-8"                                     [15],[12]
 466 ;;         ISO Latin/Hebrew alphabet
 467 ;; "ISO8859-9"                                     [15],[12]
 468 ;;         ISO Latin alphabet No. 5
 469 ;; "ISO8859-10"                                    [15],[12]
 470 ;;         ISO Latin alphabet No. 6
 471 ;; "ISO8859-13"                                    [15],[12]
 472 ;;         ISO Latin alphabet No. 7
 473 ;; "ISO8859-14"                                    [15],[12]
 474 ;;         ISO Latin alphabet No. 8
 475 ;; "ISO8859-15"                                    [15],[12]
 476 ;;         ISO Latin alphabet No. 9
 477 ;; "FCD8859-15"                                    [7]
 478 ;;         (deprecated)
 479 ;;         ISO Latin alphabet No. 9, Final Committee Draft
 480 ;; "ISO10646-1"                                    [133]
 481 ;;         Unicode Universal Multiple-Octet Coded Character Set
 482 ;; "ISO10646-MES"                                  [133]
 483 ;;         (deprecated)
 484 ;;         Unicode Minimum European Subset
 485 ;; "JISX0201.1976-0"                               [38],[12]
 486 ;;         8-Bit Alphanumeric-Katakana Code
 487 ;; "JISX0208.1983-0"                               [40],[12]
 488 ;;         Japanese Graphic Character Set,
 489 ;;         GL encoding
 490 ;; "JISX0208.1990-0"                               [71]
 491 ;;         Japanese Graphic Character Set,
 492 ;;         GL encoding
 493 ;; "JISX0208.1983-1"                               [40]
 494 ;;         (deprecated)
 495 ;;         Japanese Graphic Character Set,
 496 ;;         GR encoding
 497 ;; "JISX0212.1990-0"                               [72]
 498 ;;         Supplementary Japanese Graphic Character Set,
 499 ;;         GL encoding
 500 ;; "KOI8-R"                                        [119]
 501 ;;         Cyrillic alphabet
 502 ;; "KSC5601.1987-0"                                [41],[12]
 503 ;;         Korean Graphic Character Set,
 504 ;;         GL encoding
 505 ;; "KSC5601.1987-1"                                [41]
 506 ;;         (deprecated)
 507 ;;         Korean Graphic Character Set,
 508 ;;         GR encoding
 509 ;; "omron_CNS11643-0"                              [45]
 510 ;; "omron_CNS11643-1"                              [45]
 511 ;; "omron_BIG5-0"                                  [45]
 512 ;; "omron_BIG5-1"                                  [45]
 513 ;; "wn.tamil.1993"                                 [103]
 514
 515 (defun set-font-encoding (pattern charset)
 516   "Set arguments in `font-encoding-alist' (which see)."
 517   (let ((slot (assoc pattern font-encoding-alist)))
 518     (if slot
 519         (setcdr slot charset)
 520       (setq font-encoding-alist
 521             (cons (cons pattern charset) font-encoding-alist)))))
 522
 523 ;; Setting for suppressing XLoadQueryFont on big fonts.
 524 (setq x-pixel-size-width-font-regexp
 525       "gb2312\\|gbk\\|gb18030\\|jisx0208\\|ksc5601\\|cns11643\\|big5")
 526
 527 ;; These fonts require vertical centering.
 528 (setq vertical-centering-font-regexp
 529       "gb2312\\|gbk\\|gb18030\\|jisx0208\\|jisx0212\\|ksc5601\\|cns11643\\|big5")
 530
 531 ;; CDAC fonts are actually smaller than their design sizes.
 532 (setq face-font-rescale-alist
 533       '(("-cdac$" . 1.3)))
 534
 535 (defvar x-font-name-charset-alist nil
 536   "This variable has no meaning now.  Just kept for backward compatibility.")
 537
 538 ;;; XLFD (X Logical Font Description) format handler.
 539
 540 ;; Define XLFD's field index numbers.           ; field name
 541 (defconst xlfd-regexp-family-subnum 0)          ; FOUNDRY and FAMILY
 542 (defconst xlfd-regexp-weight-subnum 1)          ; WEIGHT_NAME
 543 (defconst xlfd-regexp-slant-subnum 2)           ; SLANT
 544 (defconst xlfd-regexp-swidth-subnum 3)          ; SETWIDTH_NAME
 545 (defconst xlfd-regexp-adstyle-subnum 4)         ; ADD_STYLE_NAME
 546 (defconst xlfd-regexp-pixelsize-subnum 5)       ; PIXEL_SIZE
 547 (defconst xlfd-regexp-pointsize-subnum 6)       ; POINT_SIZE
 548 (defconst xlfd-regexp-resx-subnum 7)            ; RESOLUTION_X
 549 (defconst xlfd-regexp-resy-subnum 8)            ; RESOLUTION_Y
 550 (defconst xlfd-regexp-spacing-subnum 8)         ; SPACING
 551 (defconst xlfd-regexp-avgwidth-subnum 10)       ; AVERAGE_WIDTH
 552 (defconst xlfd-regexp-registry-subnum 11)       ; REGISTRY and ENCODING
 553
 554 ;; Regular expression matching against a fontname which conforms to
 555 ;; XLFD (X Logical Font Description).  All fields in XLFD should be
 556 ;; not be omitted (but can be a wild card) to be matched.
 557 (defconst xlfd-tight-regexp
 558   "^\
 559 -\\([^-]*-[^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)\
 560 -\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)\
 561 -\\([^-]*\\)-\\([^-]*\\)-\\([^-]*-[^-]*\\)$")
 562
 563 ;; Regular expression matching against a fontname which conforms to
 564 ;; XLFD (X Logical Font Description).  All fields in XLFD from FOUNDRY
 565 ;; to ADSTYLE, REGISTRY, and ENCODING should be not be omitted (but
 566 ;; can be a wild card) to be matched.
 567 (defconst xlfd-style-regexp
 568   "^\
 569 -\\([^-]*-[^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-\\([^-]*\\)-.*\
 570 -\\([^-]*-[^-]*\\)$")
 571
 572 ;; List of field numbers of XLFD whose values are numeric.
 573 (defconst xlfd-regexp-numeric-subnums
 574   (list xlfd-regexp-pixelsize-subnum    ;5
 575         xlfd-regexp-pointsize-subnum    ;6
 576         xlfd-regexp-resx-subnum         ;7
 577         xlfd-regexp-resy-subnum         ;8
 578         xlfd-regexp-avgwidth-subnum     ;10
 579         ))
 580
 581 (defun x-decompose-font-name (pattern)
 582   "Decompose PATTERN into XLFD fields and return a vector of the fields.
 583 The length of the vector is 12.
 584 The FOUNDRY and FAMILY fields are concatinated and stored in the first
 585 element of the vector.
 586 The REGISTRY and ENCODING fields are concatinated and stored in the last
 587 element of the vector.
 588
 589 Return nil if PATTERN doesn't conform to XLFD."
 590   (if (string-match xlfd-tight-regexp pattern)
 591       (let ((xlfd-fields (make-vector 12 nil)))
 592         (dotimes (i 12)
 593           (aset xlfd-fields i (match-string (1+ i) pattern)))
 594         (dotimes (i 12)
 595           (if (string-match "^[*-]+$" (aref xlfd-fields i))
 596               (aset xlfd-fields i nil)))
 597         xlfd-fields)))
 598
 599 (defun x-compose-font-name (fields &optional reduce)
 600   "Compose X fontname from FIELDS.
 601 FIELDS is a vector of XLFD fields, of length 12.
 602 If a field is nil, wild-card letter `*' is embedded.
 603 Optional argument REDUCE exists just for backward compatibility,
 604 and is always ignored."
 605   (concat "-" (mapconcat (lambda (x) (or x "*")) fields "-")))
 606
 607
 608 (defun x-must-resolve-font-name (xlfd-fields)
 609   "Like `x-resolve-font-name', but always return a font name.
 610 XLFD-FIELDS is a vector of XLFD (X Logical Font Description) fields.
 611 If no font matching XLFD-FIELDS is available, successively replace
 612 parts of the font name pattern with \"*\" until some font is found.
 613 Value is name of that font."
 614   (let ((ascii-font nil) (index 0))
 615     (while (and (null ascii-font) (<= index xlfd-regexp-registry-subnum))
 616       (let ((pattern (x-compose-font-name xlfd-fields)))
 617         (condition-case nil
 618             (setq ascii-font (x-resolve-font-name pattern))
 619           (error
 620            (message "Warning: no fonts matching `%s' available" pattern)
 621            (aset xlfd-fields index "*")
 622            (setq index (1+ index))))))
 623     (unless ascii-font
 624       (error "No fonts found"))
 625     ascii-font))
 626
 627
 628 (defun x-complement-fontset-spec (xlfd-fields fontlist)
 629   "Complement elements of FONTLIST based on XLFD-FIELDS.
 630 XLFD-FIELDS is a vector of XLFD (X Logical Font Description) fields.
 631 FONTLIST is an alist of script names vs the corresponding font names.
 632
 633 The font names are complemented as below.
 634
 635 If a font name matches `xlfd-style-regexp', each field of wild card is
 636 replaced by the corresponding fields in XLFD-FIELDS."
 637   (let ((default-spec (vector (aref xlfd-fields xlfd-regexp-family-subnum)
 638                               (aref xlfd-fields xlfd-regexp-weight-subnum)
 639                               (aref xlfd-fields xlfd-regexp-slant-subnum)
 640                               (aref xlfd-fields xlfd-regexp-swidth-subnum)
 641                               (aref xlfd-fields xlfd-regexp-adstyle-subnum)
 642                               (aref xlfd-fields xlfd-regexp-registry-subnum))))
 643     (dolist (elt fontlist)
 644       (let ((name (cadr elt))
 645             font-spec)
 646         (when (or (string-match xlfd-style-regexp name)
 647                   (and (setq name (car (x-list-fonts name nil nil 1)))
 648                        (string-match xlfd-style-regexp name)))
 649           (setq font-spec (make-vector 6 nil))
 650           (dotimes (i 6)
 651             (aset font-spec i (match-string (1+ i) name)))
 652           (dotimes (i 5)
 653             (if (string-match "^[*-]+$" (aref font-spec i))
 654                 (aset font-spec i (aref default-spec i))))
 655           (setcar (cdr elt) font-spec))))
 656
 657     fontlist))
 658
 659 (defun fontset-name-p (fontset)
 660   "Return non-nil if FONTSET is valid as fontset name.
 661 A valid fontset name should conform to XLFD (X Logical Font Description)
 662 with \"fontset\" in `<CHARSET_REGISTRY>' field."
 663   (and (string-match xlfd-tight-regexp fontset)
 664        (string= (match-string (1+ xlfd-regexp-registry-subnum) fontset)
 665                 "fontset")))
 666
 667 (defun generate-fontset-menu ()
 668   "Return list to be appended to `x-fixed-font-alist'.
 669 Done when `mouse-set-font' is called."
 670   (let (l)
 671     (dolist (fontset (fontset-list))
 672       (or (string-match "fontset-default$" fontset)
 673           (push (list (fontset-plain-name fontset) fontset) l)))
 674     (cons "Fontset"
 675           (sort l #'(lambda (x y) (string< (car x) (car y)))))))
 676
 677 (defun fontset-plain-name (fontset)
 678   "Return a plain and descriptive name of FONTSET."
 679   (if (not (setq fontset (query-fontset fontset)))
 680       (error "Invalid fontset: %s" fontset))
 681   (let ((xlfd-fields (x-decompose-font-name fontset)))
 682     (if xlfd-fields
 683         (let ((family (aref xlfd-fields xlfd-regexp-family-subnum))
 684               (weight (aref xlfd-fields xlfd-regexp-weight-subnum))
 685               (slant  (aref xlfd-fields xlfd-regexp-slant-subnum))
 686               (swidth (aref xlfd-fields xlfd-regexp-swidth-subnum))
 687               (size   (aref xlfd-fields xlfd-regexp-pixelsize-subnum))
 688               (nickname (aref xlfd-fields xlfd-regexp-registry-subnum))
 689               name)
 690           (if (not (string-match "^fontset-\\(.*\\)$" nickname))
 691               (setq nickname family)
 692             (setq nickname (match-string 1 nickname)))
 693           (if (and size (> (string-to-number size) 0))
 694               (setq name (format "%s: %s-dot" nickname size))
 695             (setq name nickname))
 696           (and weight
 697                (cond ((string-match "^medium$" weight)
 698                       (setq name (concat name " " "medium")))
 699                      ((string-match "^bold$\\|^demibold$" weight)
 700                       (setq name (concat name " " weight)))))
 701           (and slant
 702                (cond ((string-match "^i$" slant)
 703                       (setq name (concat name " " "italic")))
 704                      ((string-match "^o$" slant)
 705                       (setq name (concat name " " "slant")))
 706                      ((string-match "^ri$" slant)
 707                       (setq name (concat name " " "reverse italic")))
 708                      ((string-match "^ro$" slant)
 709                       (setq name (concat name " " "reverse slant")))))
 710           name)
 711       fontset)))
 712
 713 (defvar charset-script-alist
 714   '((ascii . latin)
 715     (latin-iso8859-1 . latin)
 716     (latin-iso8859-2 . latin)
 717     (latin-iso8859-3 . latin)
 718     (latin-iso8859-4 . latin)
 719     (latin-iso8859-9 . latin)
 720     (latin-iso8859-10 . latin)
 721     (latin-iso8859-13 . latin)
 722     (latin-iso8859-14 . latin)
 723     (latin-iso8859-15 . latin)
 724     (latin-iso8859-16 . latin)
 725     (latin-jisx0201 . latin)
 726     (thai-tis620 . thai)
 727     (cyrillic-iso8859-5 . cyrillic)
 728     (arabic-iso8859-6 . arabic)
 729     (greek-iso8859-7 . latin)
 730     (hebrew-iso8859-8 . latin)
 731     (katakana-jisx0201 . kana)
 732     (chinese-gb2312 . han)
 733     (chinese-gbk . han)
 734     (gb18030-2-byte . han)
 735     (gb18030-4-byte-bmp . han)
 736     (gb18030-4-byte-ext-1 . han)
 737     (gb18030-4-byte-ext-2 . han)
 738     (gb18030-4-byte-smp . han)
 739     (chinese-big5-1 . han)
 740     (chinese-big5-2 . han)
 741     (chinese-cns11643-1 . han)
 742     (chinese-cns11643-2 . han)
 743     (chinese-cns11643-3 . han)
 744     (chinese-cns11643-4 . han)
 745     (chinese-cns11643-5 . han)
 746     (chinese-cns11643-6 . han)
 747     (chinese-cns11643-7 . han)
 748     (japanese-jisx0208 . han)
 749     (japanese-jisx0208-1978 . han)
 750     (japanese-jisx0212 . han)
 751     (japanese-jisx0213-1 . han)
 752     (japanese-jisx0213-2 . han)
 753     (korean-ksc5601 . hangul)
 754     (chinese-sisheng . bopomofo)
 755     (vietnamese-viscii-lower . latin)
 756     (vietnamese-viscii-upper . latin)
 757     (arabic-digit . arabic)
 758     (arabic-1-column . arabic)
 759     (arabic-2-column . arabic)
 760     (indian-is13194 . devanagari)
 761     (indian-glyph . devanagari)
 762     (indian-1-column . devanagari)
 763     (indian-2-column . devanagari)
 764     (tibetan-1-column . tibetan))
 765   "Alist of charsets vs the corresponding most appropriate scripts.
 766
 767 This alist is used by the function `create-fontset-from-fontset-spec'
 768 to map charsets to scripts.")
 769
 770 (defun create-fontset-from-fontset-spec (fontset-spec
 771                                          &optional style-variant noerror)
 772   "Create a fontset from fontset specification string FONTSET-SPEC.
 773 FONTSET-SPEC is a string of the format:
 774         FONTSET-NAME,SCRIPT0:FONT0,SCRIPT1:FONT1, ...
 775 Any number of SPACE, TAB, and NEWLINE can be put before and after commas.
 776
 777 When a frame uses the fontset as the `font' parameter, the frame's
 778 default font name is derived from FONTSET-NAME by substituting
 779 \"iso8859-1\" for the tail part \"fontset-XXX\".  But, if SCRIPT-NAMEn
 780 is \"ascii\", use the corresponding FONT-NAMEn as the default font
 781 name.
 782
 783 Optional 2nd and 3rd arguments exist just for backward compatibility,
 784 and are ignored.
 785
 786 It returns a name of the created fontset.
 787
 788 For backward compatibility, SCRIPT-NAME may be a charset name, in
 789 which case, the corresponding script is decided by the variable
 790 `charset-script-alist' (which see)."
 791   (or (string-match "^[^,]+" fontset-spec)
 792       (error "Invalid fontset spec: %s" fontset-spec))
 793   (let ((idx (match-end 0))
 794         (name (match-string 0 fontset-spec))
 795         xlfd-fields target script fontlist)
 796     (setq xlfd-fields (x-decompose-font-name name))
 797     (or xlfd-fields
 798         (error "Fontset name \"%s\" not conforming to XLFD" name))
 799
 800     ;; At first, extract pairs of charset and fontname from FONTSET-SPEC.
 801     (while (string-match "[, \t\n]*\\([^:]+\\):[ \t]*\\([^,]+\\)"
 802                          fontset-spec idx)
 803       (setq idx (match-end 0))
 804       (setq target (intern (match-string 1 fontset-spec)))
 805       (cond ((or (eq target 'ascii)
 806                  (memq target (char-table-extra-slot char-script-table 0)))
 807              (push (list target (match-string 2 fontset-spec)) fontlist))
 808             ((setq script (cdr (assq target charset-script-alist)))
 809              (push (list script (match-string 2 fontset-spec)) fontlist))
 810             ((charsetp target)
 811              (push (list target (match-string 2 fontset-spec)) fontlist))))
 812
 813     ;; Complement FONTLIST.
 814     (setq fontlist (x-complement-fontset-spec xlfd-fields fontlist))
 815
 816     ;; Create a fontset.
 817     (new-fontset name (nreverse fontlist))))
 818
 819 (defun create-fontset-from-ascii-font (font &optional resolved-font
 820                                             fontset-name)
 821   "Create a fontset from an ASCII font FONT.
 822
 823 Optional 2nd arg RESOLVED-FONT is a resolved name of FONT.
 824 If omitted, `x-resolve-font-name' is called to get the resolved name.
 825 At this time, if FONT is not available, an error is signaled.
 826
 827 Optional 3rd arg FONTSET-NAME is a string to be used in
 828 `<CHARSET_ENCODING>' fields of a new fontset name.  If it is omitted,
 829 an appropriate name is generated automatically.
 830
 831 It returns a name of the created fontset."
 832   (setq font (downcase font))
 833   (setq resolved-font
 834         (downcase (or resolved-font (x-resolve-font-name font))))
 835   (let ((xlfd (x-decompose-font-name resolved-font))
 836         fontset)
 837     (if fontset-name
 838         (setq fontset-name (downcase fontset-name))
 839       (if (query-fontset "fontset-startup")
 840           (setq fontset-name
 841                 (subst-char-in-string
 842                  ?- ?_ (aref xlfd xlfd-regexp-registry-subnum) t))
 843         (setq fontset-name "startup")))
 844     (aset xlfd xlfd-regexp-registry-subnum
 845           (format "fontset-%s" fontset-name))
 846     (setq fontset (x-compose-font-name xlfd))
 847     (or (query-fontset fontset)
 848         (create-fontset-from-fontset-spec (concat fontset ", ascii:" font)))))
 849
 850 \f
 851 ;; Create standard fontset from 16 dots fonts which are the most widely
 852 ;; installed fonts.  Fonts for Chinese-GB, Korean, and Chinese-CNS are
 853 ;; specified here because FAMILY of those fonts are not "fixed" in
 854 ;; many cases.
 855 (defvar standard-fontset-spec
 856   (purecopy "-*-fixed-medium-r-normal-*-16-*-*-*-*-*-fontset-standard")
 857   "String of fontset spec of the standard fontset.
 858 You have the biggest chance to display international characters
 859 with correct glyphs by using the standard fontset.
 860 See the documentation of `create-fontset-from-fontset-spec' for the format.")
 861
 862
 863 ;; Create fontsets from X resources of the name `fontset-N (class
 864 ;; Fontset-N)' where N is integer 0, 1, ...
 865 ;; The values of the resources the string of the same format as
 866 ;; `standard-fontset-spec'.
 867
 868 (defun create-fontset-from-x-resource ()
 869   (let ((idx 0)
 870         fontset-spec)
 871     (while (setq fontset-spec (x-get-resource (format "fontset-%d" idx)
 872                                               (format "Fontset-%d" idx)))
 873       (create-fontset-from-fontset-spec fontset-spec t 'noerror)
 874       (setq idx (1+ idx)))))
 875
 876 ;;
 877 (provide 'fontset)
 878
 879 ;;; arch-tag: bb53e629-0234-403c-950e-551e61554849
 880 ;;; fontset.el ends here