1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
;;; wyse50.el --- terminal support code for Wyse 50 -*- lexical-binding: t -*-
;; Copyright (C) 1989, 1993-1994, 2001-2025 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 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 <https://www.gnu.org/licenses/>.
;;; Commentary:
;; 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:
(defvar wyse50-terminal-map
(let ((map (make-sparse-keymap)))
(dolist (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
))
(define-key map
(car key-definition) (nth 1 key-definition)))
map))
(defun terminal-init-wyse50 ()
"Terminal initialization function for wyse50."
;; Use inheritance to let the main keymap override these defaults.
;; This way we don't override terminfo-derived settings or settings
;; made in the init file.
(let ((m (copy-keymap wyse50-terminal-map)))
(set-keymap-parent m (keymap-parent input-decode-map))
(set-keymap-parent input-decode-map m))
;; 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
(lambda () (interactive)
(send-string-to-terminal
(concat "\ea23R" (1+ (frame-width)) "C\eG0")))))
(defun enable-arrow-keys ()
"To be called by `tty-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)
;; Not needed any more now that we use input-decode-map.
;; (dolist (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)))
;; (global-set-key (car key-definition)
;; (nth 1 key-definition)))
(fset 'enable-arrow-keys nil))
(provide 'term/wyse50)
;;; wyse50.el ends here
|
