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- ;;; wyse50.el --- terminal support code for Wyse 50
-
- ;; Copyright (C) 1989, 1993 Free Software Foundation, Inc.
-
- ;; Author: Daniel Pfieffer <pfieffer@cix.cict.fr> January 1991
- ;; 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, 675 Mass Ave, Cambridge, MA 02139, 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:
-
- (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
- ))
-
- (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))
-
-
- ;;; 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!
- (setq kill-emacs-hook
- (function (lambda () (interactive)
- (send-string-to-terminal
- (concat "\ea23R" (1+ (frame-width)) "C\eG0")))))
-
- ;;; wyse50.el ends here
-