[xemacs-hg @ 2002-03-15 07:43:14 by ben] .cvsignore: ignore .tmp files that are getting auto-created by VC. Makefile.in.in: Use -no-packages to avoid problems with package files shadowing core files (e.g. unicode.el in mule-ucs). alloc.c, emacs.c, lisp.h: add new -no-packages. make sure list of args for sorting is actually correct. clean up arg parsing code. xemacs.mak: Use -no-packages to avoid problems with package files shadowing core files (e.g. unicode.el in mule-ucs). Makefile: Use -no-packages to avoid problems with package files shadowing core files (e.g. unicode.el in mule-ucs). mule\chinese.el, mule\japan-util.el: fix warnings. behavior-defs.el: fix errors with require. bytecomp-runtime.el: add new funs {when,and}-{f}boundp, clean up docs. cus-edit.el: pretty-print values. dump-paths.el, find-paths.el, startup.el, setup-paths.el: fix problems/inconsistencies parsing options. support new -no-packages option. merge code duplication in dump-paths and startup. lisp-mode.el: indent macrolet and labels correctly. update comments about lisp-indent-function. flet already handled in cl. apropos.el, auto-save.el, buff-menu.el, cl-extra.el, dragdrop.el, faces.el, files.el, fill.el, font-lock.el, font.el, gtk-faces.el, gui.el, help.el, hyper-apropos.el, info.el, isearch-mode.el, keymap.el, lisp-mnt.el, mouse.el, package-admin.el, package-get.el, printer.el, process.el, resize-minibuffer.el, simple.el, toolbar-items.el, wid-edit.el, win32-native.el: fix warnings. very-early-lisp.el: update docs. mule\chinese.el, mule\japan-util.el: fix warnings. mule\chinese.el, mule\japan-util.el: fix warnings. behavior-defs.el: fix errors with require. bytecomp-runtime.el: add new funs {when,and}-{f}boundp, clean up docs. cus-edit.el: pretty-print values. dump-paths.el, find-paths.el, startup.el, setup-paths.el: fix problems/inconsistencies parsing options. support new -no-packages option. merge code duplication in dump-paths and startup. lisp-mode.el: indent macrolet and labels correctly. update comments about lisp-indent-function. flet already handled in cl. apropos.el, auto-save.el, buff-menu.el, cl-extra.el, dragdrop.el, faces.el, files.el, fill.el, font-lock.el, font.el, gtk-faces.el, gui.el, help.el, hyper-apropos.el, info.el, isearch-mode.el, keymap.el, lisp-mnt.el, mouse.el, package-admin.el, package-get.el, printer.el, process.el, resize-minibuffer.el, simple.el, toolbar-items.el, wid-edit.el, win32-native.el: fix warnings. very-early-lisp.el: update docs. mule\chinese.el, mule\japan-util.el: fix warnings. Makefile.in.in: Use -no-packages to avoid problems with package files shadowing core files (e.g. unicode.el in mule-ucs). Makefile.in.in: Use -no-packages to avoid problems with package files shadowing core files (e.g. unicode.el in mule-ucs).

;;; vt100-led.el --- functions for LED control on VT-100 terminals & clones.

;; Copyright (C) 1988 Free Software Foundation, Inc.

;; Author: Howard Gayle
;; Maintainer: FSF
;; Keywords: hardware

;; This file is part of XEmacs.

;; XEmacs 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 2, or (at your option)
;; any later version.

;; XEmacs 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 XEmacs; see the file COPYING.  If not, write to the Free
;; Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.

;;; Code:

(defvar led-state (make-vector 5 nil)
   "The internal state of the LEDs.  Choices are nil, t, `flash.
Element 0 is not used.")

(defun led-flash (l)
  "Flash LED l."
  (aset led-state l 'flash)
  (led-update))

(defun led-off (&optional l)
  "Turn off vt100 led number L.  With no argument, turn them all off."
  (interactive "P")
  (if l
      (aset led-state (prefix-numeric-value l) nil)
    (fillarray led-state nil))
  (led-update))

(defun led-on (l)
  "Turn on LED l."
  (aset led-state l t)
  (led-update))

(defun led-update ()
  "Update the terminal's LEDs to reflect the internal state."
  (let ((f "\e[?0")			; String to flash.
	(o "\e[0")			; String for steady on.
	(l 1))				; Current LED number.
    (while (/= l 5)
      (let ((s (aref led-state l)))
	(cond
	 ((eq s 'flash)
	  (setq f (concat f ";" (int-to-string l))))
	 (s
	  (setq o (concat o ";" (int-to-string l))))))
      (setq l (1+ l)))
    (setq o (concat o "q" f "t"))
    (send-string-to-terminal o)))

(provide 'vt100-led)

;;; vt100-led.el ends here