lisp/term/xterm.el

   1 ;;; xterm.el --- define function key sequences and standard colors for xterm
   2
   3 ;; Copyright (C) 1995, 2002, 2003, 2004, 2005,
   4 ;;   2006 Free Software Foundation, Inc.
   5
   6 ;; Author: FSF
   7 ;; Keywords: terminals
   8
   9 ;; This file is part of GNU Emacs.
  10
  11 ;; GNU Emacs is free software; you can redistribute it and/or modify
  12 ;; it under the terms of the GNU General Public License as published by
  13 ;; the Free Software Foundation; either version 2, or (at your option)
  14 ;; any later version.
  15
  16 ;; GNU Emacs is distributed in the hope that it will be useful,
  17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 ;; GNU General Public License for more details.
  20
  21 ;; You should have received a copy of the GNU General Public License
  22 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  23 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  24 ;; Boston, MA 02110-1301, USA.
  25
  26 ;;; Commentary:
  27
  28 ;;; Code:
  29
  30 (defvar xterm-function-map (make-sparse-keymap)
  31   "Function key map overrides for xterm.")
  32
  33 ;; xterm from X.org 6.8.2 uses these key definitions.
  34 (define-key xterm-function-map "\eOP" [f1])
  35 (define-key xterm-function-map "\eOQ" [f2])
  36 (define-key xterm-function-map "\eOR" [f3])
  37 (define-key xterm-function-map "\eOS" [f4])
  38 (define-key xterm-function-map "\e[15~" [f5])
  39 (define-key xterm-function-map "\e[17~" [f6])
  40 (define-key xterm-function-map "\e[18~" [f7])
  41 (define-key xterm-function-map "\e[19~" [f8])
  42 (define-key xterm-function-map "\e[20~" [f9])
  43 (define-key xterm-function-map "\e[21~" [f10])
  44 (define-key xterm-function-map "\e[23~" [f11])
  45 (define-key xterm-function-map "\e[24~" [f12])
  46
  47 (define-key xterm-function-map "\eO2P" [S-f1])
  48 (define-key xterm-function-map "\eO2Q" [S-f2])
  49 (define-key xterm-function-map "\eO2R" [S-f3])
  50 (define-key xterm-function-map "\eO2S" [S-f4])
  51 (define-key xterm-function-map "\e[15;2~" [S-f5])
  52 (define-key xterm-function-map "\e[17;2~" [S-f6])
  53 (define-key xterm-function-map "\e[18;2~" [S-f7])
  54 (define-key xterm-function-map "\e[19;2~" [S-f8])
  55 (define-key xterm-function-map "\e[20;2~" [S-f9])
  56 (define-key xterm-function-map "\e[21;2~" [S-f10])
  57 (define-key xterm-function-map "\e[23;2~" [S-f11])
  58 (define-key xterm-function-map "\e[24;2~" [S-f12])
  59
  60 (define-key xterm-function-map "\eO5P" [C-f1])
  61 (define-key xterm-function-map "\eO5Q" [C-f2])
  62 (define-key xterm-function-map "\eO5R" [C-f3])
  63 (define-key xterm-function-map "\eO5S" [C-f4])
  64 (define-key xterm-function-map "\e[15;5~" [C-f5])
  65 (define-key xterm-function-map "\e[17;5~" [C-f6])
  66 (define-key xterm-function-map "\e[18;5~" [C-f7])
  67 (define-key xterm-function-map "\e[19;5~" [C-f8])
  68 (define-key xterm-function-map "\e[20;5~" [C-f9])
  69 (define-key xterm-function-map "\e[21;5~" [C-f10])
  70 (define-key xterm-function-map "\e[23;5~" [C-f11])
  71 (define-key xterm-function-map "\e[24;5~" [C-f12])
  72
  73 (define-key xterm-function-map "\eO6P" [C-S-f1])
  74 (define-key xterm-function-map "\eO6Q" [C-S-f2])
  75 (define-key xterm-function-map "\eO6R" [C-S-f3])
  76 (define-key xterm-function-map "\eO6S" [C-S-f4])
  77 (define-key xterm-function-map "\e[15;6~" [C-S-f5])
  78 (define-key xterm-function-map "\e[17;6~" [C-S-f6])
  79 (define-key xterm-function-map "\e[18;6~" [C-S-f7])
  80 (define-key xterm-function-map "\e[19;6~" [C-S-f8])
  81 (define-key xterm-function-map "\e[20;6~" [C-S-f9])
  82 (define-key xterm-function-map "\e[21;6~" [C-S-f10])
  83 (define-key xterm-function-map "\e[23;6~" [C-S-f11])
  84 (define-key xterm-function-map "\e[24;6~" [C-S-f12])
  85
  86 (define-key xterm-function-map "\eO3P" [A-f1])
  87 (define-key xterm-function-map "\eO3Q" [A-f2])
  88 (define-key xterm-function-map "\eO3R" [A-f3])
  89 (define-key xterm-function-map "\eO3S" [A-f4])
  90 (define-key xterm-function-map "\e[15;3~" [A-f5])
  91 (define-key xterm-function-map "\e[17;3~" [A-f6])
  92 (define-key xterm-function-map "\e[18;3~" [A-f7])
  93 (define-key xterm-function-map "\e[19;3~" [A-f8])
  94 (define-key xterm-function-map "\e[20;3~" [A-f9])
  95 (define-key xterm-function-map "\e[21;3~" [A-f10])
  96 (define-key xterm-function-map "\e[23;3~" [A-f11])
  97 (define-key xterm-function-map "\e[24;3~" [A-f12])
  98
  99 (define-key xterm-function-map "\eOA" [up])
 100 (define-key xterm-function-map "\eOB" [down])
 101 (define-key xterm-function-map "\eOC" [right])
 102 (define-key xterm-function-map "\eOD" [left])
 103 (define-key xterm-function-map "\eOF" [end])
 104 (define-key xterm-function-map "\eOH" [home])
 105
 106 (define-key xterm-function-map "\e[1;2A" [S-up])
 107 (define-key xterm-function-map "\e[1;2B" [S-down])
 108 (define-key xterm-function-map "\e[1;2C" [S-right])
 109 (define-key xterm-function-map "\e[1;2D" [S-left])
 110 (define-key xterm-function-map "\e[1;2F" [S-end])
 111 (define-key xterm-function-map "\e[1;2H" [S-home])
 112
 113 (define-key xterm-function-map "\e[1;5A" [C-up])
 114 (define-key xterm-function-map "\e[1;5B" [C-down])
 115 (define-key xterm-function-map "\e[1;5C" [C-right])
 116 (define-key xterm-function-map "\e[1;5D" [C-left])
 117 (define-key xterm-function-map "\e[1;5F" [C-end])
 118 (define-key xterm-function-map "\e[1;5H" [C-home])
 119
 120 (define-key xterm-function-map "\e[1;6A" [C-S-up])
 121 (define-key xterm-function-map "\e[1;6B" [C-S-down])
 122 (define-key xterm-function-map "\e[1;6C" [C-S-right])
 123 (define-key xterm-function-map "\e[1;6D" [C-S-left])
 124 (define-key xterm-function-map "\e[1;6F" [C-S-end])
 125 (define-key xterm-function-map "\e[1;6H" [C-S-home])
 126
 127 (define-key xterm-function-map "\e[1;3A" [A-up])
 128 (define-key xterm-function-map "\e[1;3B" [A-down])
 129 (define-key xterm-function-map "\e[1;3C" [A-right])
 130 (define-key xterm-function-map "\e[1;3D" [A-left])
 131 (define-key xterm-function-map "\e[1;3F" [A-end])
 132 (define-key xterm-function-map "\e[1;3H" [A-home])
 133
 134 (define-key xterm-function-map "\e[2~" [insert])
 135 (define-key xterm-function-map "\e[3~" [delete])
 136 (define-key xterm-function-map "\e[5~" [prior])
 137 (define-key xterm-function-map "\e[6~" [next])
 138
 139 (define-key xterm-function-map "\e[2;2~" [S-insert])
 140 (define-key xterm-function-map "\e[3;2~" [S-delete])
 141 (define-key xterm-function-map "\e[5;2~" [S-prior])
 142 (define-key xterm-function-map "\e[6;2~" [S-next])
 143
 144 (define-key xterm-function-map "\e[2;5~" [C-insert])
 145 (define-key xterm-function-map "\e[3;5~" [C-delete])
 146 (define-key xterm-function-map "\e[5;5~" [C-prior])
 147 (define-key xterm-function-map "\e[6;5~" [C-next])
 148
 149 (define-key xterm-function-map "\e[2;6~" [C-S-insert])
 150 (define-key xterm-function-map "\e[3;6~" [C-S-delete])
 151 (define-key xterm-function-map "\e[5;6~" [C-S-prior])
 152 (define-key xterm-function-map "\e[6;6~" [C-S-next])
 153
 154 (define-key xterm-function-map "\e[2;3~" [A-insert])
 155 (define-key xterm-function-map "\e[3;3~" [A-delete])
 156 (define-key xterm-function-map "\e[5;3~" [A-prior])
 157 (define-key xterm-function-map "\e[6;3~" [A-next])
 158
 159 (define-key xterm-function-map "\e[4~" [select])
 160 (define-key xterm-function-map "\e[29~" [print])
 161
 162 ;; These keys are available in xterm starting from version 216
 163 ;; if the modifyOtherKeys resource is set to 1.
 164
 165 (define-key xterm-function-map "\e[27;5;9~"   [C-tab])
 166 (define-key xterm-function-map "\e[27;5;13~"  [C-return])
 167 (define-key xterm-function-map "\e[27;5;39~"  [?\C-\'])
 168 (define-key xterm-function-map "\e[27;5;44~"  [?\C-,])
 169 (define-key xterm-function-map "\e[27;5;45~"  [?\C--])
 170 (define-key xterm-function-map "\e[27;5;46~"  [?\C-.])
 171 (define-key xterm-function-map "\e[27;5;47~"  [?\C-/])
 172 (define-key xterm-function-map "\e[27;5;48~"  [?\C-0])
 173 (define-key xterm-function-map "\e[27;5;49~"  [?\C-1])
 174 ;; Not all C-DIGIT keys have a distinct binding.
 175 (define-key xterm-function-map "\e[27;5;57~"  [?\C-9])
 176 (define-key xterm-function-map "\e[27;5;59~"  [(C-\;)])
 177 (define-key xterm-function-map "\e[27;5;61~"  [?\C-=])
 178 (define-key xterm-function-map "\e[27;5;92~"  [?\C-\\])
 179
 180 (define-key xterm-function-map "\e[27;6;33~"  [?\C-!])
 181 (define-key xterm-function-map "\e[27;6;34~"  [?\C-\"])
 182 (define-key xterm-function-map "\e[27;6;35~"  [?\C-#])
 183 (define-key xterm-function-map "\e[27;6;36~"  [?\C-$])
 184 (define-key xterm-function-map "\e[27;6;37~"  [?\C-%])
 185 (define-key xterm-function-map "\e[27;6;38~"  [(C-&)])
 186 (define-key xterm-function-map "\e[27;6;40~"  [?\C-(])
 187 (define-key xterm-function-map "\e[27;6;41~"  [?\C-)])
 188 (define-key xterm-function-map "\e[27;6;42~"  [?\C-*])
 189 (define-key xterm-function-map "\e[27;6;43~"  [?\C-+])
 190 (define-key xterm-function-map "\e[27;6;58~"  [?\C-:])
 191 (define-key xterm-function-map "\e[27;6;60~"  [?\C-<])
 192 (define-key xterm-function-map "\e[27;6;62~"  [?\C->])
 193 (define-key xterm-function-map "\e[27;6;63~"  [(C-\?)])
 194
 195 ;; These are the strings emitted for various C-M- combinations
 196 ;; for keyboards that the Meta and Alt modifiers are on the same
 197 ;; key (usually labeled "Alt").
 198 (define-key xterm-function-map "\e[27;13;9~"  [(C-M-tab)])
 199 (define-key xterm-function-map "\e[27;13;13~" [(C-M-return)])
 200
 201 (define-key xterm-function-map "\e[27;13;39~" [?\C-\M-\'])
 202 (define-key xterm-function-map "\e[27;13;44~" [?\C-\M-,])
 203 (define-key xterm-function-map "\e[27;13;45~" [?\C-\M--])
 204 (define-key xterm-function-map "\e[27;13;46~" [?\C-\M-.])
 205 (define-key xterm-function-map "\e[27;13;47~" [?\C-\M-/])
 206 (define-key xterm-function-map "\e[27;13;48~" [?\C-\M-0])
 207 (define-key xterm-function-map "\e[27;13;49~" [?\C-\M-1])
 208 (define-key xterm-function-map "\e[27;13;50~" [?\C-\M-2])
 209 (define-key xterm-function-map "\e[27;13;51~" [?\C-\M-3])
 210 (define-key xterm-function-map "\e[27;13;52~" [?\C-\M-4])
 211 (define-key xterm-function-map "\e[27;13;53~" [?\C-\M-5])
 212 (define-key xterm-function-map "\e[27;13;54~" [?\C-\M-6])
 213 (define-key xterm-function-map "\e[27;13;55~" [?\C-\M-7])
 214 (define-key xterm-function-map "\e[27;13;56~" [?\C-\M-8])
 215 (define-key xterm-function-map "\e[27;13;57~" [?\C-\M-9])
 216 (define-key xterm-function-map "\e[27;13;59~" [?\C-\M-\;])
 217 (define-key xterm-function-map "\e[27;13;61~" [?\C-\M-=])
 218 (define-key xterm-function-map "\e[27;13;92~" [?\C-\M-\\])
 219
 220 (define-key xterm-function-map "\e[27;14;33~"  [?\C-\M-!])
 221 (define-key xterm-function-map "\e[27;14;34~"  [?\C-\M-\"])
 222 (define-key xterm-function-map "\e[27;14;35~"  [?\C-\M-#])
 223 (define-key xterm-function-map "\e[27;14;36~"  [?\C-\M-$])
 224 (define-key xterm-function-map "\e[27;14;37~"  [?\C-\M-%])
 225 (define-key xterm-function-map "\e[27;14;38~"  [(C-M-&)])
 226 (define-key xterm-function-map "\e[27;14;40~"  [?\C-\M-(])
 227 (define-key xterm-function-map "\e[27;14;41~"  [?\C-\M-)])
 228 (define-key xterm-function-map "\e[27;14;42~"  [?\C-\M-*])
 229 (define-key xterm-function-map "\e[27;14;43~"  [?\C-\M-+])
 230 (define-key xterm-function-map "\e[27;14;58~"  [?\C-\M-:])
 231 (define-key xterm-function-map "\e[27;14;60~"  [?\C-\M-<])
 232 (define-key xterm-function-map "\e[27;14;62~"  [?\C-\M->])
 233 (define-key xterm-function-map "\e[27;14;63~"  [(C-M-\?)])
 234
 235 (define-key xterm-function-map "\e[27;7;9~"  [(C-M-tab)])
 236 (define-key xterm-function-map "\e[27;7;13~" [(C-M-return)])
 237
 238 (define-key xterm-function-map "\e[27;7;39~" [?\C-\M-\'])
 239 (define-key xterm-function-map "\e[27;7;44~" [?\C-\M-,])
 240 (define-key xterm-function-map "\e[27;7;45~" [?\C-\M--])
 241 (define-key xterm-function-map "\e[27;7;46~" [?\C-\M-.])
 242 (define-key xterm-function-map "\e[27;7;47~" [?\C-\M-/])
 243 (define-key xterm-function-map "\e[27;7;48~" [?\C-\M-0])
 244 (define-key xterm-function-map "\e[27;7;49~" [?\C-\M-1])
 245 (define-key xterm-function-map "\e[27;7;50~" [?\C-\M-2])
 246 (define-key xterm-function-map "\e[27;7;51~" [?\C-\M-3])
 247 (define-key xterm-function-map "\e[27;7;52~" [?\C-\M-4])
 248 (define-key xterm-function-map "\e[27;7;53~" [?\C-\M-5])
 249 (define-key xterm-function-map "\e[27;7;54~" [?\C-\M-6])
 250 (define-key xterm-function-map "\e[27;7;55~" [?\C-\M-7])
 251 (define-key xterm-function-map "\e[27;7;56~" [?\C-\M-8])
 252 (define-key xterm-function-map "\e[27;7;57~" [?\C-\M-9])
 253 (define-key xterm-function-map "\e[27;7;59~" [?\C-\M-\;])
 254 (define-key xterm-function-map "\e[27;7;61~" [?\C-\M-=])
 255 (define-key xterm-function-map "\e[27;7;92~" [?\C-\M-\\])
 256
 257 (define-key xterm-function-map "\e[27;8;33~"  [?\C-\M-!])
 258 (define-key xterm-function-map "\e[27;8;34~"  [?\C-\M-\"])
 259 (define-key xterm-function-map "\e[27;8;35~"  [?\C-\M-#])
 260 (define-key xterm-function-map "\e[27;8;36~"  [?\C-\M-$])
 261 (define-key xterm-function-map "\e[27;8;37~"  [?\C-\M-%])
 262 (define-key xterm-function-map "\e[27;8;38~"  [(C-M-&)])
 263 (define-key xterm-function-map "\e[27;8;40~"  [?\C-\M-(])
 264 (define-key xterm-function-map "\e[27;8;41~"  [?\C-\M-)])
 265 (define-key xterm-function-map "\e[27;8;42~"  [?\C-\M-*])
 266 (define-key xterm-function-map "\e[27;8;43~"  [?\C-\M-+])
 267 (define-key xterm-function-map "\e[27;8;58~"  [?\C-\M-:])
 268 (define-key xterm-function-map "\e[27;8;60~"  [?\C-\M-<])
 269 (define-key xterm-function-map "\e[27;8;62~"  [?\C-\M->])
 270 (define-key xterm-function-map "\e[27;8;63~"  [(C-M-\?)])
 271
 272 (define-key xterm-function-map "\e[27;2;9~"   [S-tab])
 273 (define-key xterm-function-map "\e[27;2;13~"  [S-return])
 274
 275 (define-key xterm-function-map "\e[27;6;9~"   [(C-S-tab)])
 276 (define-key xterm-function-map "\e[27;6;13~"  [(C-S-return)])
 277
 278 ;; Other versions of xterm might emit these.
 279 (define-key xterm-function-map "\e[A" [up])
 280 (define-key xterm-function-map "\e[B" [down])
 281 (define-key xterm-function-map "\e[C" [right])
 282 (define-key xterm-function-map "\e[D" [left])
 283 (define-key xterm-function-map "\e[1~" [home])
 284
 285 (define-key xterm-function-map "\e[1;2A" [S-up])
 286 (define-key xterm-function-map "\e[1;2B" [S-down])
 287 (define-key xterm-function-map "\e[1;2C" [S-right])
 288 (define-key xterm-function-map "\e[1;2D" [S-left])
 289 (define-key xterm-function-map "\e[1;2F" [S-end])
 290 (define-key xterm-function-map "\e[1;2H" [S-home])
 291
 292 (define-key xterm-function-map "\e[1;5A" [C-up])
 293 (define-key xterm-function-map "\e[1;5B" [C-down])
 294 (define-key xterm-function-map "\e[1;5C" [C-right])
 295 (define-key xterm-function-map "\e[1;5D" [C-left])
 296 (define-key xterm-function-map "\e[1;5F" [C-end])
 297 (define-key xterm-function-map "\e[1;5H" [C-home])
 298
 299 (define-key xterm-function-map "\e[11~" [f1])
 300 (define-key xterm-function-map "\e[12~" [f2])
 301 (define-key xterm-function-map "\e[13~" [f3])
 302 (define-key xterm-function-map "\e[14~" [f4])
 303
 304 (defun terminal-init-xterm ()
 305   "Terminal initialization function for xterm."
 306   ;; rxvt terminals sometimes set the TERM variable to "xterm", but
 307   ;; rxvt's keybindings are incompatible with xterm's. It is
 308   ;; better in that case to use rxvt's initializion function.
 309   (if (and (getenv "COLORTERM" (terminal-id))
 310            (string-match "\\`rxvt" (getenv "COLORTERM" (terminal-id))))
 311       (tty-run-terminal-initialization (selected-frame) "rxvt")
 312
 313     ;; The terminal intialization C code file might have initialized
 314     ;; function keys F13->F60 from the termcap/terminfo information.  On
 315     ;; a PC-style keyboard these keys correspond to
 316     ;; MODIFIER-FUNCTION_KEY, where modifier is S-, C, A-, C-S-.  The
 317     ;; code here subsitutes the corresponding defintions in
 318     ;; function-key-map. This substitution is needed because if a key
 319     ;; definition if found in function-key-map, there are no further
 320     ;; lookups in other keymaps.
 321     (substitute-key-definition [f13] [S-f1] local-function-key-map)
 322     (substitute-key-definition [f14] [S-f2] local-function-key-map)
 323     (substitute-key-definition [f15] [S-f3] local-function-key-map)
 324     (substitute-key-definition [f16] [S-f4] local-function-key-map)
 325     (substitute-key-definition [f17] [S-f5] local-function-key-map)
 326     (substitute-key-definition [f18] [S-f6] local-function-key-map)
 327     (substitute-key-definition [f19] [S-f7] local-function-key-map)
 328     (substitute-key-definition [f20] [S-f8] local-function-key-map)
 329     (substitute-key-definition [f21] [S-f9] local-function-key-map)
 330     (substitute-key-definition [f22] [S-f10] local-function-key-map)
 331     (substitute-key-definition [f23] [S-f11] local-function-key-map)
 332     (substitute-key-definition [f24] [S-f12] local-function-key-map)
 333
 334     (substitute-key-definition [f25] [C-f1] local-function-key-map)
 335     (substitute-key-definition [f26] [C-f2] local-function-key-map)
 336     (substitute-key-definition [f27] [C-f3] local-function-key-map)
 337     (substitute-key-definition [f28] [C-f4] local-function-key-map)
 338     (substitute-key-definition [f29] [C-f5] local-function-key-map)
 339     (substitute-key-definition [f30] [C-f6] local-function-key-map)
 340     (substitute-key-definition [f31] [C-f7] local-function-key-map)
 341     (substitute-key-definition [f32] [C-f8] local-function-key-map)
 342     (substitute-key-definition [f33] [C-f9] local-function-key-map)
 343     (substitute-key-definition [f34] [C-f10] local-function-key-map)
 344     (substitute-key-definition [f35] [C-f11] local-function-key-map)
 345     (substitute-key-definition [f36] [C-f12] local-function-key-map)
 346
 347     (substitute-key-definition [f37] [C-S-f1] local-function-key-map)
 348     (substitute-key-definition [f38] [C-S-f2] local-function-key-map)
 349     (substitute-key-definition [f39] [C-S-f3] local-function-key-map)
 350     (substitute-key-definition [f40] [C-S-f4] local-function-key-map)
 351     (substitute-key-definition [f41] [C-S-f5] local-function-key-map)
 352     (substitute-key-definition [f42] [C-S-f6] local-function-key-map)
 353     (substitute-key-definition [f43] [C-S-f7] local-function-key-map)
 354     (substitute-key-definition [f44] [C-S-f8] local-function-key-map)
 355     (substitute-key-definition [f45] [C-S-f9] local-function-key-map)
 356     (substitute-key-definition [f46] [C-S-f10] local-function-key-map)
 357     (substitute-key-definition [f47] [C-S-f11] local-function-key-map)
 358     (substitute-key-definition [f48] [C-S-f12] local-function-key-map)
 359
 360     (substitute-key-definition [f49] [A-f1] local-function-key-map)
 361     (substitute-key-definition [f50] [A-f2] local-function-key-map)
 362     (substitute-key-definition [f51] [A-f3] local-function-key-map)
 363     (substitute-key-definition [f52] [A-f4] local-function-key-map)
 364     (substitute-key-definition [f53] [A-f5] local-function-key-map)
 365     (substitute-key-definition [f54] [A-f6] local-function-key-map)
 366     (substitute-key-definition [f55] [A-f7] local-function-key-map)
 367     (substitute-key-definition [f56] [A-f8] local-function-key-map)
 368     (substitute-key-definition [f57] [A-f9] local-function-key-map)
 369     (substitute-key-definition [f58] [A-f10] local-function-key-map)
 370     (substitute-key-definition [f59] [A-f11] local-function-key-map)
 371     (substitute-key-definition [f60] [A-f12] local-function-key-map)
 372
 373     ;; Use inheritance to let the main keymap override those defaults.
 374     ;; This way we don't override terminfo-derived settings or settings
 375     ;; made in the .emacs file.
 376     (let ((m (copy-keymap xterm-function-map)))
 377       (set-keymap-parent m (keymap-parent local-function-key-map))
 378       (set-keymap-parent local-function-key-map m)))
 379
 380     (xterm-register-default-colors)
 381     ;; This recomputes all the default faces given the colors we've just set up.
 382     (tty-set-up-initial-frame-faces))
 383
 384 ;; Set up colors, for those versions of xterm that support it.
 385 (defvar xterm-standard-colors
 386   ;; The names in the comments taken from XTerm-col.ad in the xterm
 387   ;; distribution, see ftp://dickey.his.com/xterm/.  RGB values are
 388   ;; from rgb.txt.
 389   '(("black"          0 (  0   0   0))  ; black
 390     ("red"            1 (205   0   0))  ; red3
 391     ("green"          2 (  0 205   0))  ; green3
 392     ("yellow"         3 (205 205   0))  ; yellow3
 393     ("blue"           4 (  0   0 238))  ; blue2
 394     ("magenta"        5 (205   0 205))  ; magenta3
 395     ("cyan"           6 (  0 205 205))  ; cyan3
 396     ("white"          7 (229 229 229))  ; gray90
 397     ("brightblack"    8 (127 127 127))  ; gray50
 398     ("brightred"      9 (255   0   0))  ; red
 399     ("brightgreen"   10 (  0 255   0))  ; green
 400     ("brightyellow"  11 (255 255   0))  ; yellow
 401     ("brightblue"    12 (92   92 255))  ; rgb:5c/5c/ff
 402     ("brightmagenta" 13 (255   0 255))  ; magenta
 403     ("brightcyan"    14 (  0 255 255))  ; cyan
 404     ("brightwhite"   15 (255 255 255))) ; white
 405   "Names of 16 standard xterm/aixterm colors, their numbers, and RGB values.")
 406
 407 (defun xterm-rgb-convert-to-16bit (prim)
 408   "Convert an 8-bit primary color value PRIM to a corresponding 16-bit value."
 409   (logior prim (lsh prim 8)))
 410
 411 (defun xterm-register-default-colors ()
 412   "Register the default set of colors for xterm or compatible emulator.
 413
 414 This function registers the number of colors returned by `display-color-cells'
 415 for the currently selected frame.  The first 16 colors are taken from
 416 `xterm-standard-colors', which see, while the rest are computed assuming
 417 either the 88- or 256-color standard color scheme supported by latest
 418 versions of xterm."
 419   (let* ((ncolors (display-color-cells (selected-frame)))
 420          (colors xterm-standard-colors)
 421          (color (car colors)))
 422     (if (> ncolors 0)
 423         ;; Clear the 8 default tty colors registered by startup.el
 424         (tty-color-clear))
 425     ;; Only register as many colors as are supported by the display.
 426     (while (and (> ncolors 0) colors)
 427       (tty-color-define (car color) (cadr color)
 428                         (mapcar 'xterm-rgb-convert-to-16bit
 429                                 (car (cddr color))))
 430       (setq colors (cdr colors)
 431             color (car colors)
 432             ncolors (1- ncolors)))
 433     ;; We've exhausted the colors from `xterm-standard-colors'.  If there
 434     ;; are more colors to support, compute them now.
 435     (when (> ncolors 0)
 436       (cond
 437        ((= ncolors 240) ; 256-color xterm
 438         ;; 216 non-gray colors first
 439         (let ((r 0) (g 0) (b 0))
 440           (while (> ncolors 24)
 441             ;; This and other formulae taken from 256colres.pl and
 442             ;; 88colres.pl in the xterm distribution.
 443             (tty-color-define (format "color-%d" (- 256 ncolors))
 444                               (- 256 ncolors)
 445                               (mapcar 'xterm-rgb-convert-to-16bit
 446                                       (list (if (zerop r) 0 (+ (* r 40) 55))
 447                                             (if (zerop g) 0 (+ (* g 40) 55))
 448                                             (if (zerop b) 0 (+ (* b 40) 55)))))
 449
 450             (setq b (1+ b))
 451             (if (> b 5)
 452                 (setq g (1+ g)
 453                       b 0))
 454             (if (> g 5)
 455                 (setq r (1+ r)
 456                       g 0))
 457             (setq ncolors (1- ncolors))))
 458         ;; Now the 24 gray colors
 459         (while (> ncolors 0)
 460           (setq color (xterm-rgb-convert-to-16bit (+ 8 (* (- 24 ncolors) 10))))
 461           (tty-color-define (format "color-%d" (- 256 ncolors))
 462                             (- 256 ncolors)
 463                             (list color color color))
 464           (setq ncolors (1- ncolors))))
 465        ((= ncolors 72)  ; 88-color xterm
 466         ;; 64 non-gray colors
 467         (let ((levels '(0 139 205 255))
 468               (r 0) (g 0) (b 0))
 469           (while (> ncolors 8)
 470             (tty-color-define (format "color-%d" (- 88 ncolors))
 471                               (- 88 ncolors)
 472                               (mapcar 'xterm-rgb-convert-to-16bit
 473                                       (list (nth r levels)
 474                                             (nth g levels)
 475                                             (nth b levels))))
 476             (setq b (1+ b))
 477             (if (> b 3)
 478                 (setq g (1+ g)
 479                       b 0))
 480             (if (> g 3)
 481                 (setq r (1+ r)
 482                       g 0))
 483             (setq ncolors (1- ncolors))))
 484         ;; Now the 8 gray colors
 485         (while (> ncolors 0)
 486           (setq color (xterm-rgb-convert-to-16bit
 487                        (floor
 488                         (if (= ncolors 8)
 489                             46.36363636
 490                           (+ (* (- 8 ncolors) 23.18181818) 69.54545454)))))
 491           (tty-color-define (format "color-%d" (- 88 ncolors))
 492                             (- 88 ncolors)
 493                             (list color color color))
 494           (setq ncolors (1- ncolors))))
 495        (t (error "Unsupported number of xterm colors (%d)" (+ 16 ncolors)))))
 496     ;; Modifying color mappings means realized faces don't use the
 497     ;; right colors, so clear them.
 498     (clear-face-cache)))
 499
 500 ;; arch-tag: 12e7ebdd-1e6c-4b25-b0f9-35ace25e855a
 501 ;;; xterm.el ends here