lisp/term/internal.el

   1 ;;; internal.el --- support for PC internal terminal
   2
   3 ;; Copyright (C) 1993-1994, 1998-1999, 2001-2014 Free Software
   4 ;; Foundation, Inc.
   5
   6 ;; Author: Morten Welinder <terra@diku.dk>
   7
   8 ;; This file is part of GNU Emacs.
   9
  10 ;; GNU Emacs is free software: you can redistribute it and/or modify
  11 ;; it under the terms of the GNU General Public License as published by
  12 ;; the Free Software Foundation, either version 3 of the License, or
  13 ;; (at your option) any later version.
  14
  15 ;; GNU Emacs is distributed in the hope that it will be useful,
  16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;; GNU General Public License for more details.
  19
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  22
  23 ;;; Commentary:
  24
  25 ;;; Code:
  26
  27 ;; ---------------------------------------------------------------------------
  28 (defvar msdos-key-remapping-map
  29   (let ((map (make-sparse-keymap)))
  30     ;; keyboard setup -- that's simple!
  31     (define-key map [M-backspace] [?\M-\d])
  32     (define-key map [M-delete] [?\M-d])
  33     (define-key map [M-tab] [?\M-\t])
  34     (define-key map [M-linefeed] [?\M-\n])
  35     (define-key map [M-clear] [?\M-\013])
  36     (define-key map [M-return] [?\M-\015])
  37     (define-key map [M-escape] [?\M-\e])
  38     map)
  39   "Keymap for remapping special keys on MS-DOS keyboard.")
  40
  41 (defun msdos-setup-keyboard (frame)
  42   "Setup `local-function-key-map' for MS-DOS keyboard."
  43   ;; Don't do this twice on the same display, or it would break
  44   ;; normal-erase-is-backspace-mode.
  45   (unless (terminal-parameter frame 'msdos-setup-keyboard)
  46     ;; Map certain keypad keys into ASCII characters that people usually expect.
  47     (with-selected-frame frame
  48       (let ((map (copy-keymap msdos-key-remapping-map)))
  49         (set-keymap-parent map (keymap-parent local-function-key-map))
  50         (set-keymap-parent local-function-key-map map)))
  51     (set-terminal-parameter frame 'msdos-setup-keyboard t))
  52   (set-input-mode nil nil 0))
  53
  54 ;; ----------------------------------------------------------------------
  55 ;;   DOS display setup
  56 ;;   =================
  57 ;;
  58 ;;   DOS can only support a single font.  On most systems (with the
  59 ;;   possible exception of Far Eastern DOS versions), this means that
  60 ;;   two character sets are available at any given time: the ASCII
  61 ;;   charset, and a single national charset, usually mapped to codes
  62 ;;   above 128 (i.e., with 8th bit set).  Which national charset is
  63 ;;   supported depends on the codepage loaded by the system when it
  64 ;;   boots; usually, this codepage cannot be changed without
  65 ;;   rebooting.
  66 ;;
  67 ;;   Since each codepage can usually display character of a single
  68 ;;   MULE charset, Emacs can display a single MULE charset with the
  69 ;;   glyphs of the current codepage.  When Emacs starts on DOS, it
  70 ;;   automatically sets its default coding systems for file I/O and
  71 ;;   terminal output according to the current DOS codepage, given by
  72 ;;   the `dos-codepage' variable.
  73 ;;
  74 ;;   This leaves us with the problem of displaying character sets
  75 ;;   other than the one which maps directly into the current codepage.
  76 ;;   The following functions and variables handle this nuisance by
  77 ;;   defining a display table where each character that doesn't have a
  78 ;;   glyph in some codepage is mapped to a string which represents it.
  79 ;;   For example, a small c with cedilla is mapped to the string
  80 ;;   ",c".  A nice feature of the display tables is that Emacs
  81 ;;   knows that the string represents a single character, and thus
  82 ;;   cursor motion works as you'd expect: a single `C-f' moves past
  83 ;;   the entire string which represents a single character.
  84 ;; ----------------------------------------------------------------------
  85
  86 (defvar IT-unicode-translations
  87   '(
  88     (160 563                            ; first, last
  89      [ 255 "!I" "|c" "Pd" "$$" "Ye" "|" "SE" "\"" "(c)" ; Latin-1
  90        "_a" "<<" "~" "--" "(R)" "'-" "^o" "+-" "^2" "^3"
  91        "'" "u" ".P" "^." "'," "^1" "_o" ">>" "1/4" "1/2"
  92        "3/4" "?I" "`A" "A'" "A^" "~A" "\"A" "Ao" "AE" ",C"
  93        "`E" "E'" "E^" "\"E" "`I" "I'" "I^" "\"I" "-D" "~N"
  94        "`O" "O'" "O^" "~O" "\"O" "*x" "/O" "`U" "U'" "U^"
  95        "\"U" "Y'" "-P" "ss" "`a" "a'" "a^" "~a" "\"a" "ao"
  96        "ae" ",c" "`e" "e'" "e^" "\"e" "`i" "i'" "i^" "\"i"
  97        "-d" "~n" "`o" "o'" "o^" "~o" "\"o" "-:" "/o" "`u"
  98        "u'" "u^" "\"u" "y'" "-p" "\"y" ; 255
  99        "A-" "a-" "A(" "a(" "A;" "a;" "C'" "c'" "C>" "c>" ; Latin Extended-A
 100        "C." "c." "C<" "c<" "D<" "d<" "D/" "d/" "E-" "e-"
 101        "E(" "e(" "E." "e." "E;" "e;" "E<" "e<" "G>" "g>"
 102        "G(" "g(" "G." "g." "G," "g," "H>" "h>" "H/" "h/"
 103        "I~" "i~" "I-" "i-" "I(" "i(" "I;" "i;" "I." "i."
 104        "IJ" "ij" "J>" "j>" "K," "k," "kk" "L'" "l'" "L,"
 105        "l," "L<" "l<" "L." "l." "L/" "l/" "N'" "n'" "N,"
 106        "n," "N<" "n<" "'n" "NG" "ng" "O-" "o-" "O(" "o("
 107        "O\"" "o\"" "OE" "oe" "R'" "r'" "R," "r," "R<" "r<"
 108        "S'" "s'" "S>" "s>" "S," "s," "S<" "s<" "T," "t,"
 109        "T<" "t<" "T/" "t/" "U~" "u~" "U-" "u-" "U(" "u("
 110        "U0" "u0" "U\"" "u\"" "U;" "u;" "W>" "w>" "Y>" "y>"
 111        "Y:" "Z'" "z'" "Z." "z." "Z<" "z<" "s1"                ; 017f
 112        "b/" "B2" "=B" "=b" "B6" "b6" "!C" "C2" "c2" "-D" ;Lat. Extended-B
 113        "D2" "=D" "=d" "!d" "!E" "-E" "Eps" "F2" "f2" "G2"
 114        "V0" "hv" "io" "-I" "K2" "k2" "-l"  "la-" "!M" "2N"
 115        "n_" "-O" "O9" "o9" "OI" "oi" "P2" "p2" "'R" "!S"
 116        "!s" "Esh" "!esh" "t~" "T2" "t2" "T~" "U9" "u9" "Ups"
 117        "V2" "Y2" "y2" "Z/" "z/" "ED" "!ED" "!ed" "ed;" "2/"
 118        "5-" "_5-" "ts" "wn" "|_" "||" "|=" "!_" "DZ<" "Dz<"
 119        "dz<" "LJ3" "Lj3" "lj3" "NJ3" "Nj3" "nj3" "A<" "a<" "I<"
 120        "i<" "O<" "o<" "U<" "u<" "U:-" "u:-" "U:'" "u:'" "U:<"
 121        "u:<" "U:!" "u:!" "e1" "A:-" "a:-" "A.-" "a.-" "AE-" "ae-"
 122        "G/" "g/" "G<" "g<" "K<" "k<" "O;" "o;" "O1" "o1"
 123        "EZ" "ez" "j<" "DZ3" "Dz3" "dz3" "G'" "g'" "Hv" "Wn"
 124        "N`" "n`" "AA'" "aa'" "AE'" "ae'" "O/'" "o/'" "A!!" "a!!"
 125        "A)" "a)" "E!!" "e!!" "E)" "e)" "I!!" "i!!" "I)" "i)"
 126        "O!!" "o!!" "O)" "o)" "R!!" "r!!" "R)" "r)" "U!!" "u!!"
 127        "U)" "u)" ",S" ",s" ",T" ",t" "'3" "'3_" "H<" "h<"
 128        nil nil "8" "8_" "Z2" "z2" "A." "a." "E," "e,"
 129        "O:-" "o:-" "O~-" "o~-" "O." "o." "O.-" "o.-" "Y-" "y-"] ; 0x233
 130
 131      )
 132
 133     (884 1123                           ; first, last
 134      [ "'" "," nil nil nil nil "j3" nil nil nil        ; Greek
 135        "?;" nil nil nil nil nil "'*" "'%" "A%" ".*"
 136        "E%" "Y%" "I%" nil "O%" nil "U%" "W%" "i3" "A*"
 137        "B*" "G*" "D*" "E*" "Z*" "H*" "Th*" "I*" "K*" "L*"
 138        "M*" "N*" "C*" "O*" "P*" "R*" nil "S*" "T*" "U*"
 139        "F*" "X*" "Q*" "W*" "J*" "V*" "a%" "e%" "y%" "i%"
 140        "u3" "a*" "b*" "g*" "d*" "e*" "z*" "h*" "th*" "i*"
 141        "k*" "l*" "m*" "n*" "c*" "o*" "p*" "r*" "*s" "s*"
 142        "t*" "u*" "f*" "x*" "q*" "w*" "j*" "v*" "o%" "u%"
 143        "w%" nil "b3" "th%" "U2*" "'U2*" "U:2*" "ph*" "pi*" "ka*"
 144        nil nil "Sti" "sti" "Dig" "dig" "Kop" "kop" "Sam" "sam"
 145        "She" "she" "Fei" "fei" "Khe" "khe" "Hor" "hor" "Gan" "gan"
 146        "Shi" "shi" "Dei" "dei" "ka*" "rh*" "ls*" "yo*" nil nil
 147        nil nil nil nil nil nil nil nil nil nil
 148        "IE'" "E:" "D%" "G%" "IE" "DS" "II" "YI" "J%" "LJ" ; Cyrillic
 149        "NJ" "Ts"  "KJ" "`I=" "V%" "DZ" 65 "B=" 66 "G="
 150        68 69 "Z%" 51 85 "J=" 75 "L=" 77 72
 151        79 "P=" 80 67 84 89 "F=" 88 "C=" "C%"
 152        "S%" "Sc" "=\"" "Y=" "%\"" "Ee" "JU" "JA" 97 "b="
 153        98 "g=" 103 101 "z%" "z=" 117 "j=" 107 "l="
 154        109 "n=" 111 "p=" 112 99 "t=" 121 "f=" 120
 155        "c=" "c%" "s%" "sc" "='" "y=" "%'" "ee" "ju" "ja"
 156        "ie'" "e:" "d%" "g%" "ie" "ds" "ii" "yi" "j%" "lj"
 157        "nj" "ts" "kj" "v%" "`i=" "dz" "OM=" "om=" "Y3" "y3"] ; 0x463
 158      )
 159
 160     (1454 1645                          ; first, last
 161      [ nil nil ":'" "v:" "-:" "-':" ".'" ".." "v'" "-'"
 162        "-," "`." nil "\\." "(.)" "|'" "`-" nil "||" nil
 163        nil "::"  nil nil nil nil nil nil nil nil
 164        nil nil nil nil
 165        "A+" "B+" "G+" "D+" "H+" "W+" "Z+" "X+" "Tj" "J+" ; Hebrew
 166        "K%" "K+" "L+" "M%" "M+" "N%" "N+" "S+" "E+" "P%"
 167        "P+" "Zj" "ZJ" "Q+" "R+" "Sh" "T+" nil nil nil
 168        nil nil "WW+" "WJ+" "JJ+" "'+" "\"+" nil nil nil
 169        nil nil nil nil nil nil nil nil nil nil
 170        nil nil nil nil nil nil nil nil nil nil
 171        ",+" nil nil nil nil nil nil nil nil nil          ; Arabic
 172        nil nil nil nil nil ";+" nil nil nil "?+"
 173        nil "H'" "aM" "aH" "wH" "ah" "yH" "a+" "b+" "tm"
 174        "t+" "tk" "g+" "hk" "x+" "d+" "dk" "r+" "z+" "s+"
 175        "sn" "c+" "dd" "tj" "zH" "e+" "i+" nil nil nil
 176        nil nil "++" "f+" "q+" "k+" "l+" "m+" "n+" "h+"
 177        "w+" "j+" "y+" ":+" "\"+" "=+" "/+" "'+" "1+" "3+"
 178        "0+" nil nil nil nil nil nil nil nil nil
 179        nil nil nil nil "0a" "1a" "2a" "3a" "4a" "5a"
 180        "6a" "7a" "8a" "9a" "a%" "a." "a," "a*" ]
 181      )
 182
 183     (7680 9450                          ; first, last
 184      [ "A-0" "a-0" "B." "b." "B-." "b-." "B_" "b_" "C,'" "c,'" ; Lat Ext Add
 185        "D." "d." "D-." "d-." "D_" "d_" "D," "d," "D->" "d->"
 186        "E-!" "e-!" "E-'" "e-'" "E->" "e->" "E-?" "e-?" "E,(" "e,("
 187        "F." "f." "G-" "g-" "H." "h." "H-." "h-." "H:" "h:"
 188        "H," "h," "H-(" "h-(" "I-?" "i-?" "I:'" "i:'" "K'" "k'"
 189        "K-." "k-." "K_" "k_" "L-." "l-." "_L-." "_l-." "L_" "l_"
 190        "L->" "l->" "M'" "m'" "M." "m." "M-." "m-." "N." "n."
 191        "N-." "n-." "N_" "n_" "N->" "n->" "O?'" "o?'" "O?:" "o?:"
 192        "O-!" "o-!" "O-'" "o-'" "P'" "p'" "P." "p." "R." "r."
 193        "R-." "r-." "_R-." "_r-." "R_" "r_" "S." "s." "S-." "s-."
 194        "S'." "s'." "S<." "s<." ".S-." ".s-." "T." "t." "T-." "t-."
 195        "T_" "t_" "T->" "t->" "U_:" "u_:" "U-?" "u-?" "U->" "u->"
 196        "U?'" "u?'" "U-:" "u-:" "V?" "v?" "V-." "v-." "W!" "w!"
 197        "W'" "w'" "W:" "w:" "W." "w." "W-." "w-." "X."  "x."
 198        "X:" "x:" "Y." "y." "Z>" "z>" "Z-." "z-." "Z_" "z_"
 199        "h_" "t:" "w0" "y0" "a))" "s1." nil nil nil nil
 200        "A-." "a-." "A2" "a2" "A>'" "a>'" "A>!" "a>!" "A>2" "a>2"
 201        "A>~" "a>~" ".A>" ".a>" "A('" "a('" "A(!" "a(!" "A(2" "a(2"
 202        "A(~" "a(~" ".A(" ".a(" "E-." "e-." "E2" "e2" "E~" "e~"
 203        "E>'" "e>'" "E>!" "e>!" "E>2" "e>2" "E>~" "e>~" ".E>" ".e>"
 204        "I2" "i2" "I-." "i-." "O-." "o-." "O2" "o2" "O>'" "o>'"
 205        "O>!" "o>!" "O>2" "o>2" "O>~" "o>~" ".O>" ".o>" "O9'" "o9'"
 206        "O9!" "o9!" "O92" "o92" "O9~" "o9~" ".O9" ".o9" "U-." "u-."
 207        "U2" "u2" "U9'" "u9'" "U9!" "u9!" "U92" "u92" "U9~" "u9~"
 208        ".U9" ".u9" "Y!" "y!" "Y-." "y-." "Y2" "y2" "Y~" "y~"
 209        nil nil nil nil nil nil "a*," "a*;" nil nil ; Greek Ext (0x1f00)
 210        nil nil nil nil "A*," "A*;" nil nil nil nil
 211        nil nil "e*," "e*;" nil nil nil nil nil nil
 212        "E*," "E*;" nil nil nil nil nil nil "y*," "y*;"
 213        nil nil nil nil nil nil "Y*," "Y*;" nil nil
 214        nil nil nil nil "i*," "i*;" nil nil nil nil
 215        nil nil "I*," "I*;" nil nil nil nil nil nil
 216        "o*," "o*;" nil nil nil nil nil nil "O*," "O*;"
 217        nil nil nil nil nil nil "u*," "u*;" nil nil
 218        nil nil nil nil nil "U*;" nil nil nil nil
 219        nil nil "w*," "w*;" nil nil nil nil nil nil
 220        "W*," "W*;" nil nil nil nil nil nil "a*!" "a*'"
 221        "e*!" "e*'" "y*!" "y*'" "i*!" "i*'" "o*!" "o*'" "u*!" "u*'"
 222        "w*!" "w*'" nil nil nil nil nil nil nil nil
 223        nil nil nil nil nil nil nil nil nil nil
 224        nil nil nil nil nil nil nil nil nil nil
 225        nil nil nil nil nil nil nil nil nil nil
 226        nil nil nil nil nil nil nil nil nil nil
 227        nil nil "a*(" "a*-" nil "a*j" nil nil "a*~" nil
 228        "A*(" "A*-" "A*!" "A*'" "A*J" ")*" "J3" ",," "?*" "?:"
 229        nil "y*j" nil nil "y*?" nil "E*!"  "E*'" "Y*!" "Y*'"
 230        "Y*J" ",!" ",'" "?," "i*(" "i*-" nil nil nil nil
 231        "i*?" nil "I*(" "I*-" "I*!" "I*'" nil ";!" ";'" "?;"
 232        "u*(" "u*-" nil nil "r*," "r*;" "u*?" nil "U*(" "U*-"
 233        "U*!" "U*'" "R*;" "!:" ":'" "!*" nil nil nil "w*j"
 234        nil nil "w*?" nil "O*!" "O*'" "W*!" "W*'" "W*J" "/*"
 235        ";;" nil nil nil "1N" "1M" "3M" "4M" "6M" nil          ; Gen Punct
 236        nil "1T" "1H" nil nil nil "LRM" "RLM" "-1" nil
 237        nil "--" "---" "===" "!2" "=2" "6`" "'9" ".9" "9'"
 238        "``" "''" ":9" "9``" "/-" "/=" "sb" "3b" nil ".."
 239        "..." ".-" "LSep" "PSep" "LR[" "RL[" "PDF" "LRO" "RLO" 255
 240        "%o" "%oo" "'" "''" "\"'" "`" "``" "```" ".^" "<,"
 241        ",>" ":X" "!!" "?!" "'-" nil nil nil nil "-b"
 242        "/f" nil nil nil nil nil nil nil nil nil
 243        nil nil nil nil nil nil nil nil nil nil
 244        nil nil nil nil nil nil nil nil nil nil
 245        nil nil nil nil nil nil nil nil nil nil
 246        nil nil nil nil "^0" nil nil nil "^4" "^5"
 247        "^6" "^7" "^8" "^9" "^+" "^-" "^=" "^(" "^)" "^n"
 248        "_0" "_1" "_2" "_3" "_4" "_5" "_6" "_7" "_8" "_9"
 249        "_+" "_-" "_=" "_(" "_)" nil nil nil nil nil
 250        nil nil nil nil nil nil nil nil nil nil
 251        nil nil nil nil nil "Ff" "Li" nil nil "Pt"
 252        nil "W=" "NIS" nil "E=" nil nil nil nil nil
 253        nil nil nil nil nil nil nil nil nil nil
 254        nil nil nil nil nil nil nil nil nil nil
 255        nil nil nil nil nil nil nil nil nil nil
 256        nil nil nil nil nil nil nil nil nil nil
 257        nil nil nil nil nil nil nil nil nil nil
 258        nil nil nil nil nil nil nil nil nil nil
 259        nil nil nil nil nil nil nil nil nil nil
 260        nil nil nil nil nil nil nil nil "a/c" "a/s"
 261        nil "oC" nil "c/o" "c/u" "=e" nil "oF" nil nil
 262        nil nil "-h" "=h" nil nil nil nil nil nil
 263        "N0" "PO" nil nil nil nil "Re" nil "Rx" nil
 264        "SM" "TEL" "TM" nil nil nil "Om" nil nil nil
 265        "oK" "AO" nil nil "Est" nil nil nil nil nil
 266        nil "Aleph" "Bet" "Gimel" "Dalet" "=i=" nil nil nil nil
 267        nil nil nil nil nil nil nil nil nil nil
 268        nil nil nil nil nil nil nil nil nil nil
 269        nil "1/3" "2/3" "1/5" "2/5" "3/5" "4/5" "1/6" "5/6" "1/8"
 270        "3/8" "5/8" "7/8" "1/" ".I" "II" "III" "IV" ".V" "VI"
 271        "VII" "VIII" "IX" "X" "XI" "XII" ".L" ".C" ".D" ".M"
 272        ".i" "ii" "iii" "iv" ".v" "vi" "vii" "viii" "ix" ".x"
 273        "xi" ".l" ".c" ".d" ".m" "CD" "DD" "CoD" "CI" nil
 274        nil nil nil nil nil nil nil nil nil nil
 275        nil "<-" "|^" "->" "|v" "<->" "v|^" "^\\" "/^" "\\v"
 276        "v/" "<-/" "/->" "<~" "~>" "<<-" "|^^" "->>" "|vv" "<-<"
 277        ">->" "<-|" "_|^" "|->" "-|v" "_v|^" "<-?" "?->" "<-o" "o->"
 278        "<~>" "<-/>" nil nil nil nil nil nil nil nil
 279        nil nil nil nil nil nil nil nil nil nil
 280        nil nil nil nil nil nil nil nil nil nil
 281        nil nil nil "<=/" "<=/>" "/=>" "<=" "||^" "=>" "||v"
 282        "<=>" "v||^" "^\\\\" "//^" "\\\\v" "v//" "<-=" "=->" nil nil
 283        nil nil "<.." ":^" "..>" ":v" nil nil "<::" "::^"
 284        "::>" "::v" nil nil nil nil nil nil nil nil
 285        nil nil nil nil nil nil nil nil nil nil
 286        nil nil nil nil "FA" "C." "dP" "TE" "~TE" "/0"
 287        "DE" "NB" "(-" "~(-" "e-" "-)" "~-)" "-e" "QED" "*P"
 288        nil "+Z" "--" "-+" ".+" "./" ".\\" "*-" "Ob" "Sb"
 289        "SQR" "CBR" nil "0(" "00" "-L" "-V" nil nil ".|"
 290        "~.|" "||" "/||" "AND" "OR" "(U" ")U" "In" "DI" nil
 291        "Io" nil nil nil nil nil ".:" ":." ":R" "::"
 292        ".-." "-:" ":-:" ":~:" "?~" "~?" "??" nil nil "/~"
 293        "-~" "~-" "/~-" "~=" "~/=" "/~=" "~~" "/~~" nil nil
 294        "=?" ")(" "v^" "^_" ".=" "=;" ".=." nil ":=" "=:"
 295        nil "=o" "=)" "=^" "=v" "*=" "=<>" "=df" nil "?="
 296        "!=" "-=" "!-=" "==" "=<" ">=" nil nil nil nil
 297        "<<" ">>" "()" "/)(" "!<" "!>" nil nil nil nil
 298        nil nil nil nil nil nil "<'" "`>" "=<'" "`>="
 299        "~<'" "`>~" "/<'" "/`>" "(C" ")C" "/(C" "/)C" "(_" ")_"
 300        "/(_" "/)_" nil nil nil nil nil nil nil nil
 301        nil nil nil "0+" "0-" "0x" "0/" "0." "0o" "0*"
 302        "0=" "0_" nil nil nil nil "|T" "T|" "-T" "_T"
 303        nil nil nil nil nil nil nil nil nil nil
 304        nil nil nil nil nil nil nil nil nil "-,-"
 305        nil "XOR" "NAND" "NOR" nil nil nil nil nil nil
 306        nil nil nil nil nil nil nil nil nil nil
 307        nil nil nil nil nil nil nil nil "<." ".>"
 308        "<<<" ">>>" nil nil nil nil nil nil nil nil
 309        nil nil nil nil nil nil nil nil nil nil
 310        nil nil ":3" "..." nil nil nil nil nil nil
 311        nil nil nil nil nil nil nil nil nil nil
 312        nil nil "Eh" nil  nil nil nil nil "<7" ">7"
 313        "7<" "7>" nil nil nil nil "~I" nil "(A" nil
 314        nil "TR" nil "=||" "88" nil nil nil nil nil
 315        nil nil "Iu" "Il" nil nil "-^-" "-`-" "D->" nil
 316        nil "</" "/>" "<-D" nil nil nil nil nil nil
 317        nil nil nil nil nil nil nil nil nil nil
 318        nil nil nil nil nil nil nil nil nil nil
 319        nil nil nil nil nil nil nil nil nil nil
 320        nil nil nil nil nil nil nil nil nil nil
 321        nil nil nil nil nil nil nil nil nil nil
 322        nil nil nil nil nil nil nil nil nil nil
 323        nil nil nil nil nil nil nil nil nil nil
 324        nil nil nil nil nil nil nil nil nil nil
 325        nil nil nil nil nil nil nil nil nil nil
 326        nil nil nil nil nil nil nil nil nil nil
 327        nil nil nil nil nil nil nil nil nil nil
 328        nil nil nil nil nil nil nil nil nil nil
 329        nil nil nil nil nil nil nil nil nil nil
 330        nil nil nil nil nil nil nil nil nil nil
 331        nil nil nil nil nil nil nil nil nil nil
 332        nil nil nil nil nil nil nil nil nil nil
 333        nil nil nil nil nil nil nil nil nil nil
 334        nil nil nil nil nil nil nil nil nil nil
 335        nil nil nil nil nil nil nil nil nil nil
 336        nil nil nil nil nil nil nil nil nil nil
 337        nil nil nil nil nil nil "NUL" "SOH" "STX" "ETX"
 338        "EOT" "ENQ" "ACK" "BEL" "BS" "HT" "LF" "VT" "FF" "CR"
 339        "SS" "SI" "DLE" "DC1" "DC2" "DC3" "DC4" "NAK" "SYN" "ETB"
 340        "CAN" "EM" "SUB" "ESC" "FS" "GS" "RS" "US" "SP" "DEL"
 341        "b/" ",_," "NL" nil "?^" nil nil nil nil nil
 342        nil nil nil nil nil nil nil nil nil nil
 343        nil nil nil nil nil nil nil nil nil nil
 344        nil nil nil nil nil nil nil nil nil nil
 345        nil nil nil nil nil nil nil nil nil nil
 346        nil nil nil nil nil nil nil nil nil nil
 347        nil nil "1-o" "2-o" "3-o" "4-o" "5-o" "6-o" "7-o" "8-o"
 348        "9-o" "10-o" "11-o" "12-o" "13-o" "14-o" "15-o" "16-o" "17-o" "18-o"
 349        "19-o" "20-o" "(1)" "(2)" "(3)" "(4)" "(5)" "(6)" "(7)" "(8)"
 350        "(9)" "(10)" "(11)" "(12)" "(13)" "(14)" "(15)" "(16)" "(17)" "(18)"
 351        "(19)" "(20)" "1." "2." "3." "4." "5." "6." "7." "8."
 352        "9." "10." "11." "12." "13." "14." "15." "16." "17." "18."
 353        "19." "20." "(a)" "(b)" "(c)" "(d)" "(e)" "(f)" "(g)" "(h)"
 354        "(i)" "(j)" "(k)" "(l)" "(m)" "(n)" "(o)" "(p)" "(q)" "(r)"
 355        "(s)" "(t)" "(u)" "(v)" "(w)" "(x)" "(y)" "(z)" "A-o" "B-o"
 356        "C-o" "D-o" "E-o" "F-o" "G-o" "H-o" "I-o" "J-o" "K-o" "L-o"
 357        "M-o" "N-o" "O-o" "P-o" "Q-o" "R-o" "S-o" "T-o" "U-o" "V-o"
 358        "W-o" "X-o" "Y-o" "Z-o" "a-o" "b-o" "c-o" "d-o" "e-o" "f-o"
 359        "g-o" "h-o" "i-o" "j-o" "k-o" "l-o" "m-o" "n-o" "o-o" "p-o"
 360        "q-o" "r-o" "s-o" "t-o" "u-o" "v-o" "w-o" "x-o" "y-o" "z-o"
 361        "0-o" ]
 362      )
 363     )
 364
 365   "A list of strings that should be used to represent Unicode
 366 characters on a DOS terminal which does not have corresponding
 367 glyphs built into the installed codepage.")
 368
 369 (defun IT-setup-unicode-display (coding &optional table)
 370   "Set up display table TABLE for displaying mule-unicode-* characters
 371 on a DOS terminal whose codepage provides the coding-system CODING.
 372 If TABLE is nil or omitted, `standard-display-table' is used."
 373   (interactive "zCode page: ")
 374   (let ((disp-tab (or table standard-display-table))
 375         (tail IT-unicode-translations)
 376         translation)
 377     (while tail
 378       (setq translation (car tail) tail (cdr tail))
 379       (let* ((first (car translation))
 380              (last (nth 1 translation))
 381              (table (nth 2 translation))
 382              (i 0)
 383              (this first)
 384              glyph)
 385         (while (<= i (- last first))
 386           (setq glyph (aref table i))
 387           (when (and glyph
 388                      (unencodable-char-position 0 1 coding nil (string this)))
 389             (aset disp-tab this
 390                   (vconcat (if (numberp glyph)
 391                                (string glyph)
 392                              glyph))))
 393           (setq i (1+ i) this (1+ this)))))))
 394
 395 (defvar dos-codepage)
 396 (defvar dos-country-code)
 397
 398 ;; The following alist was compiled from:
 399 ;;
 400 ;; Ralf Brown's Interrupt List. file INTERRUP.F, D-2138, Table 01400
 401 ;; http://www.ethnologue.com/country_index.asp (official languages)
 402 ;; http://unicode.org/onlinedat/languages.html
 403 ;; http://unicode.org/onlinedat/countries.html
 404 ;;
 405 ;; Only the official languages listed for each country.
 406 ;;
 407 (defvar dos-locale-alist
 408   '((  1 . "en_US")
 409     (  2 . "fr_CA")
 410     (  3 . "es_MX")  ; what the heck is "Latin America"?
 411     (  4 . "en_CA")
 412     (  7 . "ru_RU")
 413     ( 20 . "ar_EG")
 414     ( 27 . "af_ZA")
 415     ( 30 . "el_GR")
 416     ( 31 . "nl_NL")
 417     ( 32 . "nl_BE")
 418     ( 33 . "fr_FR")
 419     ( 34 . "es_ES")
 420     ( 35 . "bg_BG")
 421     ( 36 . "hu_HU")
 422     ( 38 . "sh_YU")
 423     ( 39 . "it_IT")
 424     ( 40 . "ro_RO")
 425     ( 41 . "de_CH")
 426     ( 42 . "cs_CZ")
 427     ( 43 . "de_AT")
 428     ( 44 . "en_UK")
 429     ( 45 . "da_DK")
 430     ( 46 . "sv_SE")
 431     ( 47 . "no_NO")
 432     ( 48 . "pl_PL")
 433     ( 49 . "de_DE")
 434     ( 51 . "es_PE")
 435     ( 52 . "es_MX")
 436     ( 53 . "es_CU")
 437     ( 54 . "es_AR")
 438     ( 55 . "pt_BR")
 439     ( 56 . "es_CL")
 440     ( 57 . "es_CO")
 441     ( 58 . "es_VE")
 442     ( 60 . "ms_MY")
 443     ( 61 . "en_AU")
 444     ( 62 . "id_ID")
 445     ( 63 . "fil_PH")
 446     ( 64 . "en_NZ")
 447     ( 65 . "zh_SG")
 448     ( 66 . "th_TH")
 449     ( 81 . "ja_JP")
 450     ( 82 . "ko_KR")
 451     ( 84 . "vi_VN")
 452     ( 86 . "zh_CN")
 453     ( 88 . "zh_TW")
 454     ( 90 . "tr_TR")
 455     ( 91 . "hi_IN")
 456     ( 92 . "ur_PK")
 457     ( 93 . "ps_AF")
 458     ( 94 . "si_LK")
 459     ( 98 . "fa_IR")
 460     ( 99 . "en"   )
 461     (102 . "he_IL")
 462     (112 . "be_BY")
 463     (212 . "ar_MA")
 464     (213 . "ar_DZ")
 465     (216 . "ar_TN")
 466     (218 . "ar_LY")
 467     (220 . "en_GM")
 468     (221 . "fr_SN")
 469     (222 . "mey_MR")
 470     (223 . "fr_ML")
 471     (224 . "fr_GN")
 472     (227 . "fr_NE")
 473     (228 . "fr_TG")
 474     (230 . "fr_MU")
 475     (231 . "en_LR")
 476     (232 . "en_SL")
 477     (233 . "en_GH")
 478     (234 . "en_NG")
 479     (235 . "ar_TD")
 480     (236 . "fr_CF")
 481     (237 . "fr_CM")
 482     (241 . "fr_GA")
 483     (242 . "fr_CG")
 484     (243 . "sw_ZR")
 485     (244 . "pt_AO")
 486     (245 . "pt_GW")
 487     (249 . "ar_SD")
 488     (250 . "fr_RW")
 489     (251 . "am_ET")
 490     (252 . "so_SO")
 491     (253 . "fr_DJ")
 492     (254 . "sw_KE")
 493     (255 . "sw_TZ")
 494     (256 . "en_UG")
 495     (257 . "fr_BI")
 496     (259 . "pt_MZ")
 497     (260 . "en_ZM")
 498     (261 . "mg_MG")
 499     (263 . "en_ZW")
 500     (264 . "en_NA")
 501     (265 . "en_MW")
 502     (266 . "st_LS")
 503     (267 . "en_BW")
 504     (268 . "en_SZ")
 505     (299 . "kl_GL")
 506     (350 . "en_GI")
 507     (351 . "pt_PT")
 508     (352 . "fr_LU")
 509     (353 . "ga_IE")
 510     (354 . "is_IS")
 511     (355 . "sq_AL")
 512     (356 . "mt_MT")
 513     (357 . "gr_CY")
 514     (358 . "fi_FI")
 515     (359 . "bg_BG")
 516     (370 . "lt_LT")
 517     (371 . "lv_LV")
 518     (372 . "et_EE")
 519     (373 . "mo_MD")
 520     (380 . "uk_UA")
 521     (381 . "sr_RS")
 522     (384 . "hr_HR")
 523     (385 . "hr_HR")
 524     (386 . "sl_SI")
 525     (387 . "bs_BA")
 526     (388 . "sr_BA")
 527     (389 . "mk_MK")
 528     (421 . "cs_CZ")
 529     (422 . "sk_SK")
 530     (502 . "es_GT")
 531     (503 . "es_SV")
 532     (504 . "es_HN")
 533     (505 . "es_NI")
 534     (506 . "es_CR")
 535     (507 . "es_PA")
 536     (509 . "ht_HT")
 537     (590 . "fr_GP")
 538     (591 . "es_BO")
 539     (592 . "en_GY")
 540     (593 . "es_EC")
 541     (594 . "fr_GF")
 542     (595 . "gn_PY")
 543     (596 . "fr_MQ")
 544     (597 . "nl_SR")
 545     (598 . "es_UY")
 546     (785 . "ar"   )
 547     (804 . "uk_UA")
 548     (850 . "ko_KP")
 549     (855 . "km_KH")
 550     (856 . "lo_LA")
 551     (880 . "bn_BD")
 552     (886 . "zh_TW")
 553     (960 . "dv_MV")
 554     (961 . "ar_LB")
 555     (962 . "ar_JO")
 556     (963 . "ar_SY")
 557     (964 . "ar_IQ")
 558     (965 . "ar_KW")
 559     (966 . "ar_SA")
 560     (967 . "ar_YE")
 561     (968 . "ar_OM")
 562     (969 . "ar_YE")
 563     (971 . "ar_AE")
 564     (972 . "he_IL")
 565     (973 . "ar_BH")
 566     (974 . "ar_QA")
 567     (975 . "dz_BT")
 568     (976 . "mn_MN")
 569     (977 . "ne_NP")
 570     (995 . "my_MM")
 571     )
 572     "Alist of MS-DOS country codes and the corresponding locale names.")
 573
 574 (defun dos-codepage-setup ()
 575   "Set up multilingual environment for the installed DOS codepage.
 576
 577 This function sets coding systems, display tables, and the language
 578 environment options as appropriate for the current value of `dos-codepage'.
 579
 580 This function is automatically run at startup via the `after-init-hook'
 581 list.  You can (and should) also run it if and when the value of
 582 `dos-codepage' changes."
 583   (interactive)
 584   (let ((locale (cdr (assq dos-country-code dos-locale-alist)))
 585         (coding (format "cp%s" dos-codepage))
 586         coding-dos coding-unix)
 587     (setq coding-dos (intern (format "%s-dos" coding))
 588           coding-unix (intern (format "%s-unix" coding)))
 589     (setq locale (if locale
 590                      (format "%s.cp%s" locale dos-codepage)
 591                    "en_US.cp437"))
 592     (set-locale-environment locale)
 593     (set-selection-coding-system coding-dos)
 594     (IT-setup-unicode-display coding-unix)
 595     (prefer-coding-system coding-dos)
 596     (and (default-value 'enable-multibyte-characters)
 597          (setq unibyte-display-via-language-environment t))
 598     ;; Some codepages have sporadic support for Latin-1, Greek, and
 599     ;; symbol glyphs, which don't belong to their native character
 600     ;; set.  It's a nuisance to have all those glyphs here, for all
 601     ;; the codepages (for starters, I don't even have references for
 602     ;; all the codepages).  So provide a hook for those who want to
 603     ;; squeeze every bit of support out of their terminal/font.
 604     (run-hooks 'dos-codepage-setup-hook)
 605     ))
 606
 607 ;;; internal.el ends here