xterm.el 14.9 KB
Newer Older
1
;;; xterm.el --- define function key sequences and standard colors for xterm
Karl Heuer's avatar
Karl Heuer committed
2

3
;; Copyright (C) 1995, 2002, 2004, 2005  Free Software Foundation, Inc.
Erik Naggum's avatar
Erik Naggum committed
4

Karl Heuer's avatar
Karl Heuer committed
5 6 7
;; Author: FSF
;; Keywords: terminals

Erik Naggum's avatar
Erik Naggum committed
8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
;; This file is part of GNU Emacs.

;; GNU Emacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.

;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING.  If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
Karl Heuer's avatar
Karl Heuer committed
24

25 26 27
;;; Commentary:

;;; Code:
Karl Heuer's avatar
Karl Heuer committed
28

29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53
(let ((map (make-sparse-keymap)))
  (define-key map "\e[A" [up])
  (define-key map "\e[B" [down])
  (define-key map "\e[C" [right])
  (define-key map "\e[D" [left])
  (define-key map "\e[1~" [home])
  (define-key map "\e[2~" [insert])
  (define-key map "\e[3~" [delete])
  (define-key map "\e[4~" [select])
  (define-key map "\e[5~" [prior])
  (define-key map "\e[6~" [next])
  (define-key map "\e[11~" [f1])
  (define-key map "\e[12~" [f2])
  (define-key map "\e[13~" [f3])
  (define-key map "\e[14~" [f4])
  (define-key map "\e[15~" [f5])
  (define-key map "\e[17~" [f6])
  (define-key map "\e[18~" [f7])
  (define-key map "\e[19~" [f8])
  (define-key map "\e[20~" [f9])
  (define-key map "\e[21~" [f10])
  (define-key map "\e[23~" [f11])
  (define-key map "\e[24~" [f12])
  (define-key map "\e[29~" [print])

54 55 56 57 58 59 60 61 62
  (define-key map "\eOP" [f1])
  (define-key map "\eOQ" [f2])
  (define-key map "\eOR" [f3])
  (define-key map "\eOS" [f4])

  (define-key map "\eO2P" [S-f1])
  (define-key map "\eO2Q" [S-f2])
  (define-key map "\eO2R" [S-f3])
  (define-key map "\eO2S" [S-f4])
63 64 65 66 67 68 69 70 71
  (define-key map "\e[15;2~" [S-f5])
  (define-key map "\e[17;2~" [S-f6])
  (define-key map "\e[18;2~" [S-f7])
  (define-key map "\e[19;2~" [S-f8])
  (define-key map "\e[20;2~" [S-f9])
  (define-key map "\e[21;2~" [S-f10])
  (define-key map "\e[23;2~" [S-f11])
  (define-key map "\e[24;2~" [S-f12])

72 73 74 75
  (define-key map "\eO5P" [C-f1])
  (define-key map "\eO5Q" [C-f2])
  (define-key map "\eO5R" [C-f3])
  (define-key map "\eO5S" [C-f4])
76 77 78 79 80 81 82 83 84
  (define-key map "\e[15;5~" [C-f5])
  (define-key map "\e[17;5~" [C-f6])
  (define-key map "\e[18;5~" [C-f7])
  (define-key map "\e[19;5~" [C-f8])
  (define-key map "\e[20;5~" [C-f9])
  (define-key map "\e[21;5~" [C-f10])
  (define-key map "\e[23;5~" [C-f11])
  (define-key map "\e[24;5~" [C-f12])

85 86 87 88
  (define-key map "\eO6P" [C-S-f1])
  (define-key map "\eO6Q" [C-S-f2])
  (define-key map "\eO6R" [C-S-f3])
  (define-key map "\eO6S" [C-S-f4])
89 90 91 92 93 94 95 96 97
  (define-key map "\e[15;6~" [C-S-f5])
  (define-key map "\e[17;6~" [C-S-f6])
  (define-key map "\e[18;6~" [C-S-f7])
  (define-key map "\e[19;6~" [C-S-f8])
  (define-key map "\e[20;6~" [C-S-f9])
  (define-key map "\e[21;6~" [C-S-f10])
  (define-key map "\e[23;6~" [C-S-f11])
  (define-key map "\e[24;6~" [C-S-f12])

98 99 100 101
  (define-key map "\eO3P" [A-f1])
  (define-key map "\eO3Q" [A-f2])
  (define-key map "\eO3R" [A-f3])
  (define-key map "\eO3S" [A-f4])
102 103 104 105 106 107 108 109 110
  (define-key map "\e[15;3~" [A-f5])
  (define-key map "\e[17;3~" [A-f6])
  (define-key map "\e[18;3~" [A-f7])
  (define-key map "\e[19;3~" [A-f8])
  (define-key map "\e[20;3~" [A-f9])
  (define-key map "\e[21;3~" [A-f10])
  (define-key map "\e[23;3~" [A-f11])
  (define-key map "\e[24;3~" [A-f12])

111 112 113 114
  (define-key map "\e[1;2A" [S-up])
  (define-key map "\e[1;2B" [S-down])
  (define-key map "\e[1;2C" [S-right])
  (define-key map "\e[1;2D" [S-left])
115 116
  (define-key map "\e[1;2F" [S-end])
  (define-key map "\e[1;2H" [S-home])
117 118 119 120 121

  (define-key map "\e[1;5A" [C-up])
  (define-key map "\e[1;5B" [C-down])
  (define-key map "\e[1;5C" [C-right])
  (define-key map "\e[1;5D" [C-left])
122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137
  (define-key map "\e[1;5F" [C-end])
  (define-key map "\e[1;5H" [C-home])

  (define-key map "\e[1;6A" [C-S-up])
  (define-key map "\e[1;6B" [C-S-down])
  (define-key map "\e[1;6C" [C-S-right])
  (define-key map "\e[1;6D" [C-S-left])
  (define-key map "\e[1;6F" [C-S-end])
  (define-key map "\e[1;6H" [C-S-home])

  (define-key map "\e[1;3A" [A-up])
  (define-key map "\e[1;3B" [A-down])
  (define-key map "\e[1;3C" [A-right])
  (define-key map "\e[1;3D" [A-left])
  (define-key map "\e[1;3F" [A-end])
  (define-key map "\e[1;3H" [A-home])
138

139 140 141 142
  (define-key map "\e[2;2~" [S-insert])
  (define-key map "\e[3;2~" [S-delete])
  (define-key map "\e[5;2~" [S-prior])
  (define-key map "\e[6;2~" [S-next])
143 144 145 146 147 148

  (define-key map "\e[2;5~" [C-insert])
  (define-key map "\e[3;5~" [C-delete])
  (define-key map "\e[5;5~" [C-prior])
  (define-key map "\e[6;5~" [C-next])

149 150 151 152 153 154 155 156 157 158
  (define-key map "\e[2;6~" [C-S-insert])
  (define-key map "\e[3;6~" [C-S-delete])
  (define-key map "\e[5;6~" [C-S-prior])
  (define-key map "\e[6;6~" [C-S-next])

  (define-key map "\e[2;3~" [A-insert])
  (define-key map "\e[3;3~" [A-delete])
  (define-key map "\e[5;3~" [A-prior])
  (define-key map "\e[6;3~" [A-next])

159 160 161 162 163 164 165 166 167 168 169
  (define-key map "\eOA" [up])
  (define-key map "\eOB" [down])
  (define-key map "\eOC" [right])
  (define-key map "\eOD" [left])
  (define-key map "\eOF" [end])
  (define-key map "\eOH" [home])

  (define-key map "\eO2A" [S-up])
  (define-key map "\eO2B" [S-down])
  (define-key map "\eO2C" [S-right])
  (define-key map "\eO2D" [S-left])
170 171 172
  (define-key map "\eO2F" [S-end])
  (define-key map "\eO2H" [S-home])

173 174 175 176
  (define-key map "\eO5A" [C-up])
  (define-key map "\eO5B" [C-down])
  (define-key map "\eO5C" [C-right])
  (define-key map "\eO5D" [C-left])
177 178
  (define-key map "\eO5F" [C-end])
  (define-key map "\eO5H" [C-home])
179 180 181 182 183 184

  ;; Use inheritance to let the main keymap override those defaults.
  ;; This way we don't override terminfo-derived settings or settings
  ;; made in the .emacs file.
  (set-keymap-parent map (keymap-parent function-key-map))
  (set-keymap-parent function-key-map map))
185

186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245
;;; The terminal intialization C code file might have initialized
;;; function keys F13->F60 from the termcap/terminfo information.  On
;;; a PC-style keyboard these keys correspond to
;;; MODIFIER-FUNCTION_KEY, where modifier is S-, C, A-, C-S-.  The
;;; code here subsitutes the corresponding defintions in
;;; function-key-map. This substitution is needed because if a key
;;; definition if found in function-key-map, there are no further
;;; lookups in other keymaps.
(substitute-key-definition [f13] [S-f1] function-key-map) 
(substitute-key-definition [f14] [S-f2] function-key-map)
(substitute-key-definition [f15] [S-f3] function-key-map)
(substitute-key-definition [f16] [S-f4] function-key-map)
(substitute-key-definition [f17] [S-f5] function-key-map)
(substitute-key-definition [f18] [S-f6] function-key-map)
(substitute-key-definition [f19] [S-f7] function-key-map)
(substitute-key-definition [f20] [S-f8] function-key-map)
(substitute-key-definition [f21] [S-f9] function-key-map)
(substitute-key-definition [f22] [S-f10] function-key-map)
(substitute-key-definition [f23] [S-f11] function-key-map)
(substitute-key-definition [f24] [S-f12] function-key-map)

(substitute-key-definition [f25] [C-f1] function-key-map) 
(substitute-key-definition [f26] [C-f2] function-key-map)
(substitute-key-definition [f27] [C-f3] function-key-map)
(substitute-key-definition [f28] [C-f4] function-key-map)
(substitute-key-definition [f29] [C-f5] function-key-map)
(substitute-key-definition [f30] [C-f6] function-key-map)
(substitute-key-definition [f31] [C-f7] function-key-map)
(substitute-key-definition [f32] [C-f8] function-key-map)
(substitute-key-definition [f33] [C-f9] function-key-map)
(substitute-key-definition [f34] [C-f10] function-key-map)
(substitute-key-definition [f35] [C-f11] function-key-map)
(substitute-key-definition [f36] [C-f12] function-key-map)

(substitute-key-definition [f37] [C-S-f1] function-key-map) 
(substitute-key-definition [f38] [C-S-f2] function-key-map)
(substitute-key-definition [f39] [C-S-f3] function-key-map)
(substitute-key-definition [f40] [C-S-f4] function-key-map)
(substitute-key-definition [f41] [C-S-f5] function-key-map)
(substitute-key-definition [f42] [C-S-f6] function-key-map)
(substitute-key-definition [f43] [C-S-f7] function-key-map)
(substitute-key-definition [f44] [C-S-f8] function-key-map)
(substitute-key-definition [f45] [C-S-f9] function-key-map)
(substitute-key-definition [f46] [C-S-f10] function-key-map)
(substitute-key-definition [f47] [C-S-f11] function-key-map)
(substitute-key-definition [f48] [C-S-f12] function-key-map)

(substitute-key-definition [f49] [A-f1] function-key-map) 
(substitute-key-definition [f50] [A-f2] function-key-map)
(substitute-key-definition [f51] [A-f3] function-key-map)
(substitute-key-definition [f52] [A-f4] function-key-map)
(substitute-key-definition [f53] [A-f5] function-key-map)
(substitute-key-definition [f54] [A-f6] function-key-map)
(substitute-key-definition [f55] [A-f7] function-key-map)
(substitute-key-definition [f56] [A-f8] function-key-map)
(substitute-key-definition [f57] [A-f9] function-key-map)
(substitute-key-definition [f58] [A-f10] function-key-map)
(substitute-key-definition [f59] [A-f11] function-key-map)
(substitute-key-definition [f60] [A-f12] function-key-map)

246 247 248 249 250 251 252 253 254
;; Set up colors, for those versions of xterm that support it.
(defvar xterm-standard-colors
  ;; The names in the comments taken from XTerm-col.ad in the xterm
  ;; distribution, see ftp://dickey.his.com/xterm/.  RGB values are
  ;; from rgb.txt.
  '(("black"          0 (  0   0   0))	; black
    ("red"            1 (205   0   0))	; red3
    ("green"          2 (  0 205   0))	; green3
    ("yellow"         3 (205 205   0))	; yellow3
255
    ("blue"           4 (  0   0 238))	; blue2
256 257 258
    ("magenta"        5 (205   0 205))	; magenta3
    ("cyan"           6 (  0 205 205))	; cyan3
    ("white"          7 (229 229 229))	; gray90
259
    ("brightblack"    8 (127 127 127))	; gray50
260 261 262
    ("brightred"      9 (255   0   0))	; red
    ("brightgreen"   10 (  0 255   0))	; green
    ("brightyellow"  11 (255 255   0))	; yellow
263
    ("brightblue"    12 (92   92 255))	; rgb:5c/5c/ff
264 265 266 267 268 269 270
    ("brightmagenta" 13 (255   0 255))	; magenta
    ("brightcyan"    14 (  0 255 255))	; cyan
    ("brightwhite"   15 (255 255 255)))	; white
  "Names of 16 standard xterm/aixterm colors, their numbers, and RGB values.")

(defun xterm-rgb-convert-to-16bit (prim)
  "Convert an 8-bit primary color value PRIM to a corresponding 16-bit value."
271
  (logior prim (lsh prim 8)))
272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307

(defun xterm-register-default-colors ()
  "Register the default set of colors for xterm or compatible emulator.

This function registers the number of colors returned by `display-color-cells'
for the currently selected frame.  The first 16 colors are taken from
`xterm-standard-colors', which see, while the rest are computed assuming
either the 88- or 256-color standard color scheme supported by latest
versions of xterm."
  (let* ((ncolors (display-color-cells))
	 (colors xterm-standard-colors)
	 (color (car colors)))
    (if (> ncolors 0)
	;; Clear the 8 default tty colors registered by startup.el
	(tty-color-clear))
    ;; Only register as many colors as are supported by the display.
    (while (and (> ncolors 0) colors)
      (tty-color-define (car color) (cadr color)
			(mapcar 'xterm-rgb-convert-to-16bit
				(car (cddr color))))
      (setq colors (cdr colors)
	    color (car colors)
	    ncolors (1- ncolors)))
    ;; We've exhausted the colors from `xterm-standard-colors'.  If there
    ;; are more colors to support, compute them now.
    (when (> ncolors 0)
      (cond
       ((= ncolors 240)	; 256-color xterm
	;; 216 non-gray colors first
	(let ((r 0) (g 0) (b 0))
	  (while (> ncolors 24)
	    ;; This and other formulae taken from 256colres.pl and
	    ;; 88colres.pl in the xterm distribution.
	    (tty-color-define (format "color-%d" (- 256 ncolors))
			      (- 256 ncolors)
			      (mapcar 'xterm-rgb-convert-to-16bit
308 309 310 311
				      (list (if (zerop r) 0 (+ (* r 40) 55))
					    (if (zerop g) 0 (+ (* g 40) 55))
					    (if (zerop b) 0 (+ (* b 40) 55)))))

312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348
	    (setq b (1+ b))
	    (if (> b 5)
		(setq g (1+ g)
		      b 0))
	    (if (> g 5)
		(setq r (1+ r)
		      g 0))
	    (setq ncolors (1- ncolors))))
	;; Now the 24 gray colors
	(while (> ncolors 0)
	  (setq color (xterm-rgb-convert-to-16bit (+ 8 (* (- 24 ncolors) 10))))
	  (tty-color-define (format "color-%d" (- 256 ncolors))
			    (- 256 ncolors)
			    (list color color color))
	  (setq ncolors (1- ncolors))))
       ((= ncolors 72)  ; 88-color xterm
	;; 64 non-gray colors
	(let ((levels '(0 139 205 255))
	      (r 0) (g 0) (b 0))
	  (while (> ncolors 8)
	    (tty-color-define (format "color-%d" (- 88 ncolors))
			      (- 88 ncolors)
			      (mapcar 'xterm-rgb-convert-to-16bit
				      (list (nth r levels)
					    (nth g levels)
					    (nth b levels))))
	    (setq b (1+ b))
	    (if (> b 3)
		(setq g (1+ g)
		      b 0))
	    (if (> g 3)
		(setq r (1+ r)
		      g 0))
	    (setq ncolors (1- ncolors))))
	;; Now the 8 gray colors
	(while (> ncolors 0)
	  (setq color (xterm-rgb-convert-to-16bit
349
		       (floor
350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394
			(if (= ncolors 8)
			    46.36363636
			  (+ (* (- 8 ncolors) 23.18181818) 69.54545454)))))
	  (tty-color-define (format "color-%d" (- 88 ncolors))
			    (- 88 ncolors)
			    (list color color color))
	  (setq ncolors (1- ncolors))))
       (t (error "Unsupported number of xterm colors (%d)" (+ 16 ncolors)))))
    ;; Modifying color mappings means realized faces don't use the
    ;; right colors, so clear them.
    (clear-face-cache)))

;; rxvt puts the default colors into an environment variable
;; COLORFGBG.  We use this to set the background mode in a more
;; intelligent way than the default guesswork in startup.el.
(defun xterm-rxvt-set-background-mode ()
  "Set background mode as appropriate for the default rxvt colors."
  (let ((fgbg (getenv "COLORFGBG"))
	bg rgb)
    (setq frame-background-mode 'light)	; default
    (when (and fgbg
	       (string-match ".*;\\([0-9][0-9]?\\)\\'" fgbg))
      (setq bg (string-to-number (substring fgbg (match-beginning 1))))
      ;; The next line assumes that xterm-standard-colors are ordered
      ;; by the color index in the ascending order!
      (setq rgb (car (cddr (nth bg xterm-standard-colors))))
      ;; See the commentary in frame-set-background-mode about the
      ;; computation below.
      (if (< (apply '+ rgb)
	     ;; The following line assumes that white is the 15th
	     ;; color in xterm-standard-colors.
	     (* (apply '+ (car (cddr (nth 15 xterm-standard-colors)))) 0.6))
	  (setq frame-background-mode 'dark)))
    (frame-set-background-mode (selected-frame))))

;; Do it!
(xterm-register-default-colors)
;; If this xterm is actually a disguised rxvt, be more intelligent about
;; determining the background mode.
(and (getenv "COLORTERM")
     (string-match "\\`rxvt" (getenv "COLORTERM"))
     (xterm-rxvt-set-background-mode))
;; This recomputes all the default faces given the colors we've just set up.
(tty-set-up-initial-frame-faces)

395
;; arch-tag: 12e7ebdd-1e6c-4b25-b0f9-35ace25e855a
396
;;; xterm.el ends here