;;; wyse50.el --- terminal support code for Wyse 50 -*- no-byte-compile: t -*- ;; Copyright (C) 1989, 1993, 1994, 2001, 2002, 2003, 2004, ;; 2005, 2006, 2007 Free Software Foundation, Inc. ;; Author: Daniel Pfeiffer <occitan@esperanto.org>, ;; Jim Blandy <jimb@occs.cs.oberlin.edu> ;; 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: ;; Uses the Emacs 19 terminal initialization features --- won't work with 18. ;; Rewritten for Emacs 19 by jimb, January 1992 ;; Cleaned up for new terminal package conventions by esr, March 1993 ;; Should work well for Televideo TVI 925 although it's overkill. ;; ;; The Wyse50 is ergonomically wonderful, but its escape-sequence design sucks ;; rocks. The left-arrow key emits a backspace (!) and the down-arrow a line ;; feed (!!). Thus, you have to unbind some commonly-used Emacs keys to ;; enable the arrows. ;;; Code: (defun terminal-init-wyse50 () "Terminal initialization function for wyse50." (define-key function-key-map "\C-a" (make-keymap)) (mapcar (function (lambda (key-definition) (define-key function-key-map (car key-definition) (nth 1 key-definition)))) '( ;; These might be set up by termcap and terminfo ("\C-k" [up]) ("\C-j" [down]) ("\C-l" [right]) ("\C-h" [left]) ("\^a@\^m" [f1]) ("\^aA\^m" [f2]) ("\^aB\^m" [f3]) ("\^aC\^m" [f4]) ("\^aD\^m" [f5]) ("\^aE\^m" [f6]) ("\^aF\^m" [f7]) ("\^aG\^m" [f8]) ("\^aH\^m" [f9]) ;; These might be set up by terminfo ("\eK" [next]) ("\eT" [clearline]) ("\^^" [home]) ("\e\^^" [end]) ("\eQ" [insert]) ("\eE" [insertline]) ("\eR" [deleteline]) ("\eP" [print]) ("\er" [replace]) ("\^aI\^m" [f10]) ("\^aJ\^m" [f11]) ("\^aK\^m" [f12]) ("\^aL\^m" [f13]) ("\^aM\^m" [f14]) ("\^aN\^m" [f15]) ("\^aO\^m" [f16]) ("\^a`\^m" [f17]) ("\^aa\^m" [f18]) ("\^ab\^m" [f19]) ("\^ac\^m" [f20]) ("\^ad\^m" [f21]) ("\^ae\^m" [f22]) ("\^af\^m" [f23]) ("\^ag\^m" [f24]) ("\^ah\^m" [f25]) ("\^ai\^m" [f26]) ("\^aj\^m" [f27]) ("\^ak\^m" [f28]) ("\^al\^m" [f29]) ("\^am\^m" [f30]) ("\^an\^m" [f31]) ("\^ao\^m" [f32]) ;; Terminfo may know about these, but X won't ("\eI" [key-stab]) ;; Not an X keysym ("\eJ" [key-snext]) ;; Not an X keysym ("\eY" [key-clear]) ;; Not an X keysym ;; These are totally strange :-) ("\eW" [?\C-?]) ;; Not an X keysym ("\^a\^k\^m" [funct-up]) ;; Not an X keysym ("\^a\^j\^m" [funct-down]) ;; Not an X keysym ("\^a\^l\^m" [funct-right]) ;; Not an X keysym ("\^a\^h\^m" [funct-left]) ;; Not an X keysym ("\^a\^m\^m" [funct-return]) ;; Not an X keysym ("\^a\^i\^m" [funct-tab]) ;; Not an X keysym )) ;; Miscellaneous hacks ;; This is an ugly hack for a nasty problem: ;; Wyse 50 takes one character cell to store video attributes (which seems to ;; explain width 79 rather than 80, column 1 is not used!!!). ;; On killing (C-x C-c) the end inverse code (on column 1 of line 24) ;; of the mode line is overwritten AFTER all the y-or-n questions. ;; This causes the attribute to remain in effect until the mode line has ;; scrolled of the screen. Suspending (C-z) does not cause this problem. ;; On such terminals, Emacs should sacrifice the first and last character of ;; each mode line, rather than a whole screen column! (add-hook 'kill-emacs-hook (function (lambda () (interactive) (send-string-to-terminal (concat "\ea23R" (1+ (frame-width)) "C\eG0")))))) (defun enable-arrow-keys () "To be called by term-setup-hook. Overrides 6 Emacs standard keys whose functions are then typed as follows: C-a Funct Left-arrow C-h M-? LFD Funct Return, some modes override down-arrow via LFD C-k CLR Line C-l Scrn CLR M-r M-x move-to-window-line, Funct up-arrow or down-arrow are similar " (interactive) (mapcar (function (lambda (key-definition) (global-set-key (car key-definition) (nth 1 key-definition)))) ;; By unsetting C-a and then binding it to a prefix, we ;; allow the rest of the function keys which start with C-a ;; to be recognized. '(("\C-a" nil) ("\C-k" nil) ("\C-j" nil) ("\C-l" nil) ("\C-h" nil) ("\er" nil))) (fset 'enable-arrow-keys nil)) ;;; arch-tag: b6a05d37-eead-4cf6-b997-0f956c68881c ;;; wyse50.el ends here