lisp/sun-keys.el

   1 ;;; sun-keys.el --- support for Sun function keys
   2
   3 ;;; Support (cleanly) for Sun function keys.  Provides help facilities,
   4 ;;; better diagnostics, etc.
   5 ;;;
   6 ;;; To use: make sure your .ttyswrc binds 'F1' to <ESC> * F1 <CR> and so on.
   7 ;;;         load this lot from your start_up
   8 ;;;
   9 ;;;
  10 ;;;    Copyright (C) 1986 Free Software Foundation, Inc.
  11 ;;;
  12 ;;; This file is part of GNU Emacs.
  13
  14 ;; GNU Emacs is free software; you can redistribute it and/or modify
  15 ;; it under the terms of the GNU General Public License as published by
  16 ;; the Free Software Foundation; either version 1, or (at your option)
  17 ;; any later version.
  18
  19 ;; GNU Emacs is distributed in the hope that it will be useful,
  20 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  21 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22 ;; GNU General Public License for more details.
  23
  24 ;; You should have received a copy of the GNU General Public License
  25 ;; along with GNU Emacs; see the file COPYING.  If not, write to
  26 ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  27 ;;;
  28 ;;; Batten@uk.ac.bham.multics (Ian G. Batten)
  29 ;;;
  30
  31 (defun sun-function-keys-dispatch (arg)
  32   "Dispatcher for function keys."
  33   (interactive "p")
  34   (let* ((key-stroke (read t))
  35          (command (assq key-stroke sun-function-keys-command-list)))
  36     (cond (command (funcall (cdr command) arg))
  37           (t (error "Unbound function key %s" key-stroke)))))
  38
  39 (defvar sun-function-keys-command-list
  40   '((F1 . sun-function-keys-describe-bindings)
  41     (R8 . previous-line)                ; arrow keys
  42     (R10 . backward-char)
  43     (R12 . forward-char)
  44     (R14 . next-line)))
  45
  46 (defun sun-function-keys-bind-key (arg1 arg2)
  47   "Bind a specified key."
  48   (interactive "xFunction Key Cap Label:
  49 CCommand To Use:")
  50   (setq sun-function-keys-command-list
  51         (cons (cons arg1 arg2) sun-function-keys-command-list)))
  52
  53 (defun sun-function-keys-describe-bindings (arg)
  54   "Describe the function key bindings we're running"
  55   (interactive)
  56   (with-output-to-temp-buffer "*Help*"
  57     (sun-function-keys-write-bindings
  58      (sort (copy-sequence sun-function-keys-command-list)
  59            '(lambda (x y) (string-lessp (car x) (car y)))))))
  60
  61 (defun sun-function-keys-write-bindings (list)
  62   (cond ((null list)
  63          t)
  64         (t
  65          (princ (format "%s: %s\n"
  66                         (car (car list))
  67                         (cdr (car list))))
  68          (sun-function-keys-write-bindings (cdr list)))))
  69
  70 (global-set-key "\e*" 'sun-function-keys-dispatch)
  71
  72 (make-variable-buffer-local 'sun-function-keys-command-list)
  73
  74 ;;; sun-keys.el ends here