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emacs/lisp/term/xterm.el
Dan Nicolaescu 0278364cef (terminal-init-xterm): Fix loading rxvt at run 
time.
2005-09-21 23:12:14 +00:00

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;;; xterm.el --- define function key sequences and standard colors for xterm
;; Copyright (C) 1995, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
;; Author: FSF
;; Keywords: terminals
;; 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., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;;; Commentary:
;;; Code:
(defun terminal-init-xterm ()
"Terminal initialization function for xterm."
;; rxvt terminals sometimes set the TERM variable to "xterm", but
;; rxvt's keybindings that are incompatible with xterm's. It is
;; better in that case to use rxvt's initializion function.
(if (and (getenv "COLORTERM")
(string-match "\\`rxvt" (getenv "COLORTERM")))
(progn
(eval-and-compile (load "term/rxvt"))
(terminal-init-rxvt))
;; 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)
(let ((map (make-sparse-keymap)))
;; xterm from X.org 6.8.2 uses these key definitions.
(define-key map "\eOP" [f1])
(define-key map "\eOQ" [f2])
(define-key map "\eOR" [f3])
(define-key map "\eOS" [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 "\eO2P" [S-f1])
(define-key map "\eO2Q" [S-f2])
(define-key map "\eO2R" [S-f3])
(define-key map "\eO2S" [S-f4])
(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])
(define-key map "\eO5P" [C-f1])
(define-key map "\eO5Q" [C-f2])
(define-key map "\eO5R" [C-f3])
(define-key map "\eO5S" [C-f4])
(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])
(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])
(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])
(define-key map "\eO3P" [A-f1])
(define-key map "\eO3Q" [A-f2])
(define-key map "\eO3R" [A-f3])
(define-key map "\eO3S" [A-f4])
(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])
(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 "\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])
(define-key map "\e[1;2F" [S-end])
(define-key map "\e[1;2H" [S-home])
(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])
(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])
(define-key map "\e[2~" [insert])
(define-key map "\e[3~" [delete])
(define-key map "\e[5~" [prior])
(define-key map "\e[6~" [next])
(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])
(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])
(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])
(define-key map "\e[4~" [select])
(define-key map "\e[29~" [print])
;; Other versions of xterm might emit these.
(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 "\eO2A" [S-up])
(define-key map "\eO2B" [S-down])
(define-key map "\eO2C" [S-right])
(define-key map "\eO2D" [S-left])
(define-key map "\eO2F" [S-end])
(define-key map "\eO2H" [S-home])
(define-key map "\eO5A" [C-up])
(define-key map "\eO5B" [C-down])
(define-key map "\eO5C" [C-right])
(define-key map "\eO5D" [C-left])
(define-key map "\eO5F" [C-end])
(define-key map "\eO5H" [C-home])
(define-key map "\e[11~" [f1])
(define-key map "\e[12~" [f2])
(define-key map "\e[13~" [f3])
(define-key map "\e[14~" [f4])
;; 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))
;; Do it!
(xterm-register-default-colors)
;; This recomputes all the default faces given the colors we've just set up.
(tty-set-up-initial-frame-faces)))
;; 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
("blue" 4 ( 0 0 238)) ; blue2
("magenta" 5 (205 0 205)) ; magenta3
("cyan" 6 ( 0 205 205)) ; cyan3
("white" 7 (229 229 229)) ; gray90
("brightblack" 8 (127 127 127)) ; gray50
("brightred" 9 (255 0 0)) ; red
("brightgreen" 10 ( 0 255 0)) ; green
("brightyellow" 11 (255 255 0)) ; yellow
("brightblue" 12 (92 92 255)) ; rgb:5c/5c/ff
("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."
(logior prim (lsh prim 8)))
(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
(list (if (zerop r) 0 (+ (* r 40) 55))
(if (zerop g) 0 (+ (* g 40) 55))
(if (zerop b) 0 (+ (* b 40) 55)))))
(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
(floor
(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)))
;; arch-tag: 12e7ebdd-1e6c-4b25-b0f9-35ace25e855a
;;; xterm.el ends here
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