;;; rxvt.el --- define function key sequences and standard colors for rxvt ;; Copyright (C) 2002-2020 Free Software Foundation, Inc. ;; Author: Eli Zaretskii ;; 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 3 of the License, 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. If not, see . ;;; Commentary: ;;; Code: (require 'term/xterm) (defgroup rxvt nil "(U)RXVT support." :version "28.1" :group 'terminals) (defcustom rxvt-set-window-title nil "Whether Emacs should set window titles to an Emacs frame in RXVT." :version "28.1" :type 'boolean) (defvar rxvt-function-map (let ((map (make-sparse-keymap))) (set-keymap-parent map xterm-rxvt-function-map) ;; Set up input-decode-map entries that termcap and terminfo don't know. (define-key map "\e[7~" [home]) (define-key map "\e[8~" [end]) ;; The strings emitted by f11 and f12 are the same as the strings ;; emitted by S-f1 and S-f2, so don't define f11 and f12. ;; (define-key rxvt-function-map "\e[23~" [f11]) ;; (define-key rxvt-function-map "\e[24~" [f12]) (define-key map "\e[23~" [S-f1]) (define-key map "\e[24~" [S-f2]) (define-key map "\e[11^" [C-f1]) (define-key map "\e[12^" [C-f2]) (define-key map "\e[13^" [C-f3]) (define-key map "\e[14^" [C-f4]) (define-key map "\e[15^" [C-f5]) (define-key map "\e[17^" [C-f6]) (define-key map "\e[18^" [C-f7]) (define-key map "\e[19^" [C-f8]) (define-key map "\e[20^" [C-f9]) (define-key map "\e[21^" [C-f10]) (define-key map "\e[25~" [S-f3]) (define-key map "\e[26~" [S-f4]) (define-key map "\e[28~" [S-f5]) (define-key map "\e[29~" [S-f6]) (define-key map "\e[31~" [S-f7]) (define-key map "\e[32~" [S-f8]) (define-key map "\e[33~" [S-f9]) (define-key map "\e[34~" [S-f10]) (define-key map "\e[23^" [C-S-f1]) (define-key map "\e[24^" [C-S-f2]) (define-key map "\e[25^" [C-S-f3]) (define-key map "\e[26^" [C-S-f4]) (define-key map "\e[28^" [C-S-f5]) (define-key map "\e[29^" [C-S-f6]) (define-key map "\e[31^" [C-S-f7]) (define-key map "\e[32^" [C-S-f8]) (define-key map "\e[33^" [C-S-f9]) (define-key map "\e[34^" [C-S-f10]) (define-key map "\e[2^" [C-insert]) (define-key map "\e[3^" [C-delete]) (define-key map "\e[5^" [C-prior]) (define-key map "\e[6^" [C-next]) (define-key map "\e[7^" [C-home]) (define-key map "\e[8^" [C-end]) (define-key map "\eOd" [C-left]) (define-key map "\eOc" [C-right]) (define-key map "\eOa" [C-up]) (define-key map "\eOb" [C-down]) (define-key map "\e[3$" [S-delete]) (define-key map "\e[5$" [S-prior]) (define-key map "\e[6$" [S-next]) (define-key map "\e[7$" [S-home]) (define-key map "\e[8$" [S-end]) (define-key map "\e[d" [S-left]) (define-key map "\e[c" [S-right]) (define-key map "\e[a" [S-up]) (define-key map "\e[b" [S-down]) map) "Function key overrides for rxvt.") (defvar rxvt-alternatives-map (let ((map (make-sparse-keymap))) ;; The terminal initialization C code file might have initialized ;; function keys F11->F42 from the termcap/terminfo information. On ;; a PC-style keyboard these keys correspond to ;; MODIFIER-FUNCTION_KEY, where modifier is S-, C-, C-S-. The ;; code here substitutes the corresponding definitions 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. (define-key map [f11] [S-f1]) (define-key map [f12] [S-f2]) (define-key map [f13] [S-f3]) (define-key map [f14] [S-f4]) (define-key map [f15] [S-f5]) (define-key map [f16] [S-f6]) (define-key map [f17] [S-f7]) (define-key map [f18] [S-f8]) (define-key map [f19] [S-f9]) (define-key map [f20] [S-f10]) (define-key map [f23] [C-f1]) (define-key map [f24] [C-f2]) (define-key map [f25] [C-f3]) (define-key map [f26] [C-f4]) (define-key map [f27] [C-f5]) (define-key map [f28] [C-f6]) (define-key map [f29] [C-f7]) (define-key map [f30] [C-f8]) (define-key map [f31] [C-f9]) (define-key map [f32] [C-f10]) (define-key map [f33] [C-S-f1]) (define-key map [f34] [C-S-f2]) (define-key map [f35] [C-S-f3]) (define-key map [f36] [C-S-f4]) (define-key map [f37] [C-S-f5]) (define-key map [f38] [C-S-f6]) (define-key map [f39] [C-S-f7]) (define-key map [f40] [C-S-f8]) (define-key map [f41] [C-S-f9]) (define-key map [f42] [C-S-f10]) map) "Keymap of possible alternative meanings for some keys.") ;; Set up colors, for those versions of rxvt that support it. (defvar rxvt-standard-colors ;; The names of the colors in the comments taken from the rxvt.1 man ;; page; the corresponding RGB values--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 0 205)) ; blue3 ("magenta" 5 (205 0 205)) ; magenta3 ("cyan" 6 ( 0 205 205)) ; cyan3 ("white" 7 (229 229 229)) ; gray90 ("brightblack" 8 ( 77 77 77)) ; gray30 ("brightred" 9 (255 0 0)) ; red ("brightgreen" 10 ( 0 255 0)) ; green ("brightyellow" 11 (255 255 0)) ; yellow ("brightblue" 12 ( 0 0 255)) ; blue ("brightmagenta" 13 (255 0 255)) ; magenta ("brightcyan" 14 ( 0 255 255)) ; cyan ("brightwhite" 15 (255 255 255))) ; white "Names of 16 standard rxvt colors, their numbers, and RGB values.") (defun terminal-init-rxvt () "Terminal initialization function for rxvt." (xterm--push-map rxvt-alternatives-map local-function-key-map) (xterm--push-map rxvt-function-map input-decode-map) ;; Initialize colors and background mode. (xterm-register-default-colors rxvt-standard-colors) (rxvt-set-background-mode) ;; This recomputes all the default faces given the colors we've just set up. (tty-set-up-initial-frame-faces) ;; Unconditionally enable bracketed paste mode: terminals that don't ;; support it just ignore the sequence. (xterm--init-bracketed-paste-mode) (when rxvt-set-window-title (xterm--init-frame-title)) (run-hooks 'terminal-init-rxvt-hook)) ;; 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 rxvt-set-background-mode () "Set background mode as appropriate for the default rxvt colors." (let ((fgbg (getenv "COLORFGBG")) bg rgb) (set-terminal-parameter nil 'background-mode 'light) (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 rxvt-standard-colors are ordered ;; by the color index in the ascending order! (setq rgb (car (cddr (nth bg rxvt-standard-colors)))) ;; See the commentary in frame-set-background-mode about the ;; computation below. (if (color-dark-p (mapcar (lambda (c) (/ c 255.0)) rgb)) (set-terminal-parameter nil 'background-mode 'dark))))) (provide 'term/rxvt) ;;; rxvt.el ends here