1 ;;; config.el --- access configuration parameters
3 ;; Copyright (C) 1997 Sun Microsystems, Inc.
5 ;; Author: Martin Buchholz
8 ;; This file is part of SXEmacs.
10 ;; SXEmacs 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 3 of the License, or
13 ;; (at your option) any later version.
15 ;; SXEmacs 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.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with this program. If not, see <http://www.gnu.org/licenses/>.
23 ;;; Synched up with: not in FSF.
30 (defvar config-value-file (expand-file-name "config.values" doc-directory)
31 "File containing configuration parameters and their values.")
33 (defvar config-value-hash-table nil
34 "Hash table to store configuration parameters and their values.")
37 (defun config-value-hash-table ()
38 "Return hash table of configuration parameters and their values."
39 (when (null config-value-hash-table)
40 (setq config-value-hash-table (make-hash-table :size 300))
42 (let ((buf (get-buffer-create " *Config*")))
45 (insert-file-contents config-value-file)
46 (goto-char (point-min))
49 (let* ((key (read buf))
51 (prev (gethash key config-value-hash-table)))
53 (puthash key value config-value-hash-table))
55 (puthash key (list prev value) config-value-hash-table))
57 (nconc prev (list value))))))
59 (kill-buffer " *Config*")))
60 config-value-hash-table)
63 (defun config-value (config-symbol)
64 "Return the value of the configuration parameter CONFIG_SYMBOL."
65 (gethash config-symbol (config-value-hash-table)))
68 ;;; config.el ends here