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comparison lisp/term/vt100.el @ 0:376386a54a3c r19-14

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Import from CVS: tag r19-14
author cvs
date Mon, 13 Aug 2007 08:45:50 +0200
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1 ;;; vt100.el --- define VT100 function key sequences in function-key-map
2
3 ;; Author: FSF
4 ;; Keywords: terminals
5
6 ;; Copyright (C) 1989, 1993 Free Software Foundation, Inc.
7 ;;; This file is part of GNU Emacs.
8 ;;;
9 ;;; GNU Emacs is free software; you can redistribute it and/or modify
10 ;;; it under the terms of the GNU General Public License as published by
11 ;;; the Free Software Foundation; either version 2, or (at your option)
12 ;;; any later version.
13 ;;;
14 ;;; GNU Emacs is distributed in the hope that it will be useful,
15 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
16 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 ;;; GNU General Public License for more details.
18 ;;;
19 ;;; You should have received a copy of the GNU General Public License
20 ;;; along with GNU Emacs; see the file COPYING. If not, write to
21 ;;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
22
23 ;;; Commentary:
24
25 ;; Uses the Emacs 19 terminal initialization features --- won't work with 18.
26
27 ;; Handles all VT100 clones, including the Apollo terminal. Also handles
28 ;; the VT200 --- its PF- and arrow- keys are different, but all those
29 ;; are really set up by the terminal initialization code, which mines them
30 ;; out of termcap. This package is here to define the keypad comma, dash
31 ;; and period (which aren't in termcap's repertoire) and the function for
32 ;; changing from 80 to 132 columns & vv.
33
34 ;;; Code:
35
36 ;; Set up function-key-map entries that termcap and terminfo don't know.
37 (load "term/lk201" nil t)
38
39 ;;; Controlling the screen width.
40 (defconst vt100-wide-mode (= (frame-width) 132)
41 "t if vt100 is in 132-column mode.")
42
43 (defun vt100-wide-mode (&optional arg)
44 "Toggle 132/80 column mode for vt100s.
45 With positive argument, switch to 132-column mode.
46 With negative argument, switch to 80-column mode."
47 (interactive "P")
48 (setq vt100-wide-mode
49 (if (null arg) (not vt100-wide-mode)
50 (> (prefix-numeric-value arg) 0)))
51 (send-string-to-terminal (if vt100-wide-mode "\e[?3h" "\e[?3l"))
52 (set-frame-width terminal-frame (if vt100-wide-mode 132 80)))
53
54 ;;; vt100.el ends here