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1 | ;;; vt100.el --- define VT100 function key sequences in function-key-map |
2 | ||
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3 | ;; Copyright (C) 1989, 1993 Free Software Foundation, Inc. |
4 | ||
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5 | ;; Author: FSF |
6 | ;; Keywords: terminals | |
7 | ||
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8 | ;; This file is part of GNU Emacs. |
9 | ||
10 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
11 | ;; it under the terms of the GNU General Public License as published by | |
12 | ;; the Free Software Foundation; either version 2, or (at your option) | |
13 | ;; any later version. | |
14 | ||
15 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
16 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | ;; GNU General Public License for more details. | |
19 | ||
20 | ;; You should have received a copy of the GNU General Public License | |
21 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
22 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
23 | ;; Boston, MA 02111-1307, USA. | |
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24 | |
25 | ;;; Commentary: | |
26 | ||
27 | ;; Uses the Emacs 19 terminal initialization features --- won't work with 18. | |
28 | ||
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. | |
35 | ||
36 | ;;; Code: | |
37 | ||
0e73af29 RS |
38 | ;; Set up function-key-map entries that termcap and terminfo don't know. |
39 | (load "term/lk201" nil t) | |
ef61be13 | 40 | |
e645a1dd | 41 | ;;; Controlling the screen width. |
e6e9c516 | 42 | (defvar vt100-wide-mode (= (frame-width) 132) |
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43 | "t if vt100 is in 132-column mode.") |
44 | ||
45 | (defun vt100-wide-mode (&optional arg) | |
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46 | "Toggle 132/80 column mode for vt100s. |
47 | With positive argument, switch to 132-column mode. | |
48 | With negative argument, switch to 80-column mode." | |
e645a1dd | 49 | (interactive "P") |
db95369b | 50 | (setq vt100-wide-mode |
e645a1dd JB |
51 | (if (null arg) (not vt100-wide-mode) |
52 | (> (prefix-numeric-value arg) 0))) | |
53 | (send-string-to-terminal (if vt100-wide-mode "\e[?3h" "\e[?3l")) | |
83317c07 | 54 | (set-frame-width terminal-frame (if vt100-wide-mode 132 80))) |
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55 | |
56 | ;;; vt100.el ends here |