Mercurial > hg > xemacs-beta
annotate lisp/term/vt100-led.el @ 5584:d469c668462e
#'load-terminal-library; load term files correctly for gnuclient consoles.
lisp/ChangeLog addition:
2011-10-17 Aidan Kehoe <kehoea@parhasard.net>
* startup.el (load-terminal-library):
Don't (getenv "TERM") here, call #'console-tty-terminal-type
instead, different gnuclient consoles can and should have
different terminal type function maps effective.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Tue, 18 Oct 2011 12:03:36 +0100 |
| parents | 308d34e9f07d |
| children |
| rev | line source |
|---|---|
| 0 | 1 ;;; vt100-led.el --- functions for LED control on VT-100 terminals & clones. |
| 2 | |
| 3 ;; Copyright (C) 1988 Free Software Foundation, Inc. | |
| 4 | |
| 5 ;; Author: Howard Gayle | |
| 6 ;; Maintainer: FSF | |
| 7 ;; Keywords: hardware | |
| 8 | |
| 9 ;; This file is part of XEmacs. | |
| 10 | |
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11 ;; XEmacs is free software: you can redistribute it and/or modify it |
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12 ;; under the terms of the GNU General Public License as published by the |
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13 ;; Free Software Foundation, either version 3 of the License, or (at your |
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14 ;; option) any later version. |
| 0 | 15 |
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16 ;; XEmacs is distributed in the hope that it will be useful, but WITHOUT |
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17 ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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18 ;; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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19 ;; for more details. |
| 0 | 20 |
| 21 ;; You should have received a copy of the GNU General Public License | |
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22 ;; along with XEmacs. If not, see <http://www.gnu.org/licenses/>. |
| 0 | 23 |
| 24 ;;; Code: | |
| 25 | |
| 26 (defvar led-state (make-vector 5 nil) | |
| 27 "The internal state of the LEDs. Choices are nil, t, `flash. | |
| 28 Element 0 is not used.") | |
| 29 | |
| 30 (defun led-flash (l) | |
| 31 "Flash LED l." | |
| 32 (aset led-state l 'flash) | |
| 33 (led-update)) | |
| 34 | |
| 35 (defun led-off (&optional l) | |
| 36 "Turn off vt100 led number L. With no argument, turn them all off." | |
| 37 (interactive "P") | |
| 38 (if l | |
| 39 (aset led-state (prefix-numeric-value l) nil) | |
| 40 (fillarray led-state nil)) | |
| 41 (led-update)) | |
| 42 | |
| 43 (defun led-on (l) | |
| 44 "Turn on LED l." | |
| 45 (aset led-state l t) | |
| 46 (led-update)) | |
| 47 | |
| 48 (defun led-update () | |
| 49 "Update the terminal's LEDs to reflect the internal state." | |
| 50 (let ((f "\e[?0") ; String to flash. | |
| 51 (o "\e[0") ; String for steady on. | |
| 52 (l 1)) ; Current LED number. | |
| 53 (while (/= l 5) | |
| 54 (let ((s (aref led-state l))) | |
| 55 (cond | |
| 56 ((eq s 'flash) | |
| 57 (setq f (concat f ";" (int-to-string l)))) | |
| 58 (s | |
| 59 (setq o (concat o ";" (int-to-string l)))))) | |
| 60 (setq l (1+ l))) | |
| 61 (setq o (concat o "q" f "t")) | |
| 62 (send-string-to-terminal o))) | |
| 63 | |
| 64 (provide 'vt100-led) | |
| 65 | |
| 66 ;;; vt100-led.el ends here |