1 ;;; wyse50.el --- terminal support code for Wyse 50
3 ;; Copyright (C) 1989, 1993, 1994 Free Software Foundation, Inc.
5 ;; Author: Daniel Pfieffer <pfieffer@cix.cict.fr> January 1991
6 ;; Jim Blandy <jimb@occs.cs.oberlin.edu>
9 ;;; This file is part of SXEmacs.
11 ;; SXEmacs 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 3 of the License, or
14 ;; (at your option) any later version.
16 ;; SXEmacs 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.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with this program. If not, see <http://www.gnu.org/licenses/>.
26 ;; Uses the Emacs 19 terminal initialization features --- won't work with 18.
27 ;; Rewritten for Emacs 19 by jimb, January 1992
28 ;; Cleaned up for new terminal package conventions by esr, March 1993
29 ;; Should work well for Televideo TVI 925 although it's overkill.
31 ;; The Wyse50 is ergonomically wonderful, but its escape-sequence design sucks
32 ;; rocks. The left-arrow key emits a backspace (!) and the down-arrow a line
33 ;; feed (!!). Thus, you have to unbind some commonly-used Emacs keys to
38 (define-key function-key-map "\C-a" (make-keymap))
39 (mapcar (function (lambda (key-definition)
40 (define-key function-key-map
41 (car key-definition) (nth 1 key-definition))))
43 ;; These might be set up by termcap and terminfo
58 ;; These might be set up by terminfo
92 ;; Terminfo may know about these, but X won't
93 ("\eI" [key-stab]) ;; Not an X keysym
94 ("\eJ" [key-snext]) ;; Not an X keysym
95 ("\eY" [key-clear]) ;; Not an X keysym
97 ;; These are totally strange :-)
98 ("\eW" [?\C-?]) ;; Not an X keysym
99 ("\^a\^k\^m" [funct-up]) ;; Not an X keysym
100 ("\^a\^j\^m" [funct-down]) ;; Not an X keysym
101 ("\^a\^l\^m" [funct-right]) ;; Not an X keysym
102 ("\^a\^h\^m" [funct-left]) ;; Not an X keysym
103 ("\^a\^m\^m" [funct-return]) ;; Not an X keysym
104 ("\^a\^i\^m" [funct-tab]) ;; Not an X keysym
107 (defun enable-arrow-keys ()
108 "To be called by term-setup-hook. Overrides 6 Emacs standard keys
109 whose functions are then typed as follows:
112 LFD Funct Return, some modes override down-arrow via LFD
115 M-r M-x move-to-window-line, Funct up-arrow or down-arrow are similar
118 (mapcar (function (lambda (key-definition)
119 (global-set-key (car key-definition)
120 (nth 1 key-definition))))
121 ;; By unsetting C-a and then binding it to a prefix, we
122 ;; allow the rest of the function keys which start with C-a
130 (fset 'enable-arrow-keys nil))
133 ;;; Miscellaneous hacks
135 ;;; This is an ugly hack for a nasty problem:
136 ;;; Wyse 50 takes one character cell to store video attributes (which seems to
137 ;;; explain width 79 rather than 80, column 1 is not used!!!).
138 ;;; On killing (C-x C-c) the end inverse code (on column 1 of line 24)
139 ;;; of the mode line is overwritten AFTER all the y-or-n questions.
140 ;;; This causes the attribute to remain in effect until the mode line has
141 ;;; scrolled of the screen. Suspending (C-z) does not cause this problem.
142 ;;; On such terminals, Emacs should sacrifice the first and last character of
143 ;;; each mode line, rather than a whole screen column!
144 (add-hook 'kill-emacs-hook
145 (function (lambda () (interactive)
146 (send-string-to-terminal
147 (concat "\ea23R" (1+ (frame-width)) "C\eG0")))))
149 ;;; wyse50.el ends here