1 ;;; vt100.el --- define VT100 function key sequences in function-key-map
6 ;; Copyright (C) 1989 Free Software Foundation, Inc.
8 ;; This file is part of GNU Emacs.
10 ;; GNU Emacs is distributed in the hope that it will be useful,
11 ;; but WITHOUT ANY WARRANTY. No author or distributor
12 ;; accepts responsibility to anyone for the consequences of using it
13 ;; or for whether it serves any particular purpose or works at all,
14 ;; unless he says so in writing. Refer to the GNU Emacs General Public
15 ;; License for full details.
17 ;; Everyone is granted permission to copy, modify and redistribute
18 ;; GNU Emacs, but only under the conditions described in the
19 ;; GNU Emacs General Public License. A copy of this license is
20 ;; supposed to have been given to you along with GNU Emacs so you
21 ;; can know your rights and responsibilities. It should be in a
22 ;; file named COPYING. Among other things, the copyright notice
23 ;; and this notice must be preserved on all copies.
27 ;; Uses the Emacs 19 terminal initialization features --- won't work with 18.
29 ;; Handles all VT100 clones, including the Apollo terminal. Also handles
30 ;; the VT200 --- its PF- and arrow- keys are different, but all those
31 ;; are really set up by the terminal initialization code, which mines them
32 ;; out of termcap. This package is here to define the keypad comma, dash
33 ;; and period (which aren't in termcap's repertoire) and the function for
34 ;; changing from 80 to 132 columns & vv.
38 ;; CSI sequences - those that start with "\e[".
39 ;; Termcap or terminfo should set these up automatically
40 ;; (if (boundp 'vt100-CSI-prefix)
42 ;; (define-prefix-command 'vt100-CSI-prefix)
43 ;; (define-key function-key-map "\e[" 'vt100-CSI-prefix)
45 ;; (define-key vt100-CSI-prefix "A" [up])
46 ;; (define-key vt100-CSI-prefix "B" [down])
47 ;; (define-key vt100-CSI-prefix "C" [right])
48 ;; (define-key vt100-CSI-prefix "D" [left])
51 ;; SS3 sequences - those that start with "\eO".
52 (if (boundp 'vt100-SS3-prefix
)
54 ;; The terminal initialization should already have set up some keys
55 (setq vt100-SS3-prefix
(lookup-key function-key-map
"\eO"))
56 (if (not (keymapp vt100-SS3-prefix
))
57 (error "What? Your VT100 termcap/terminfo has no keycaps in it."))
59 ;; These will typically be set up automatically by termcap or terminfo
60 ;; (define-key vt100-SS3-prefix "A" [up]) ; up-arrow
61 ;; (define-key vt100-SS3-prefix "B" [down]) ; down-arrow
62 ;; (define-key vt100-SS3-prefix "C" [right]) ; right-arrow
63 ;; (define-key vt100-SS3-prefix "D" [left]) ; left-arrow
64 ;; (define-key vt100-SS3-prefix "P" [kp-f1]) ; PF1
65 ;; (define-key vt100-SS3-prefix "Q" [kp-f2]) ; PF2
66 ;; (define-key vt100-SS3-prefix "R" [kp-f3]) ; PF3
67 ;; (define-key vt100-SS3-prefix "S" [kp-f4]) ; PF4
69 ;; Terminfo might set these
70 (define-key vt100-SS3-prefix
"M" [kp-enter
]) ; Enter
71 (define-key vt100-SS3-prefix
"p" [kp-0
]) ; 0
72 (define-key vt100-SS3-prefix
"q" [kp-1
]) ; 1
73 (define-key vt100-SS3-prefix
"r" [kp-2
]) ; 2
74 (define-key vt100-SS3-prefix
"s" [kp-3
]) ; 3
75 (define-key vt100-SS3-prefix
"t" [kp-4
]) ; 4
76 (define-key vt100-SS3-prefix
"u" [kp-5
]) ; 5
77 (define-key vt100-SS3-prefix
"v" [kp-6
]) ; 6
78 (define-key vt100-SS3-prefix
"w" [kp-7
]) ; 7
79 (define-key vt100-SS3-prefix
"x" [kp-8
]) ; 8
80 (define-key vt100-SS3-prefix
"y" [kp-9
]) ; 9
82 ;; Neither termcap nor terminfo will set these
83 (define-key vt100-SS3-prefix
"l" [kp-separator
]) ; ,
84 (define-key vt100-SS3-prefix
"m" [kp-subtract
]) ; -
85 (define-key vt100-SS3-prefix
"n" [kp-period
]) ; .
88 ;;; Controlling the screen width.
89 (defconst vt100-wide-mode
(= (frame-width) 132)
90 "t if vt100 is in 132-column mode.")
92 (defun vt100-wide-mode (&optional arg
)
93 "Toggle 132/80 column mode for vt100s."
96 (if (null arg
) (not vt100-wide-mode
)
97 (> (prefix-numeric-value arg
) 0)))
98 (send-string-to-terminal (if vt100-wide-mode
"\e[?3h" "\e[?3l"))
99 (set-frame-width (if vt100-wide-mode
132 80)))
101 ;;; vt100.el ends here