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+ − 1 ;;; config.el --- access configuration parameters
+ − 2
+ − 3 ;; Copyright (C) 1997 Sun Microsystems, Inc.
+ − 4
+ − 5 ;; Author: Martin Buchholz
+ − 6 ;; Keywords: configure
+ − 7
+ − 8 ;; This file is part of XEmacs.
+ − 9
+ − 10 ;; XEmacs 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 2, or (at your option)
+ − 13 ;; any later version.
+ − 14
+ − 15 ;; XEmacs 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.
+ − 19
+ − 20 ;; You should have received a copy of the GNU General Public License
+ − 21 ;; along with XEmacs; see the file COPYING. If not, write to the
+ − 22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ − 23 ;; Boston, MA 02111-1307, USA.
+ − 24
+ − 25 ;;; Synched up with: not in FSF.
+ − 26
+ − 27 ;;; Commentary:
+ − 28
+ − 29 ;;; Code:
+ − 30
+ − 31
+ − 32 (defvar config-value-file (expand-file-name "config.values" doc-directory)
+ − 33 "File containing configuration parameters and their values.")
+ − 34
+ − 35 (defvar config-value-hash-table nil
+ − 36 "Hash table to store configuration parameters and their values.")
+ − 37
+ − 38 ;;;###autoload
+ − 39 (defun config-value-hash-table ()
+ − 40 "Return hash table of configuration parameters and their values."
+ − 41 (when (null config-value-hash-table)
+ − 42 (setq config-value-hash-table (make-hash-table :size 300))
+ − 43 (save-excursion
+ − 44 (let ((buf (get-buffer-create " *Config*")))
+ − 45 (set-buffer buf)
+ − 46 (erase-buffer)
+ − 47 (insert-file-contents config-value-file)
+ − 48 (goto-char (point-min))
+ − 49 (condition-case nil
+ − 50 (while t
+ − 51 (let* ((key (read buf))
+ − 52 (value (read buf))
+ − 53 (prev (gethash key config-value-hash-table)))
+ − 54 (cond ((null prev)
+ − 55 (puthash key value config-value-hash-table))
+ − 56 ((atom prev)
+ − 57 (puthash key (list prev value) config-value-hash-table))
+ − 58 (t
+ − 59 (nconc prev (list value))))))
+ − 60 (end-of-file nil)))
+ − 61 (kill-buffer " *Config*")))
+ − 62 config-value-hash-table)
+ − 63
+ − 64 ;;;###autoload
+ − 65 (defun config-value (config-symbol)
+ − 66 "Return the value of the configuration parameter CONFIG_SYMBOL."
+ − 67 (gethash config-symbol (config-value-hash-table)))
+ − 68
+ − 69 (provide 'config)
+ − 70 ;;; config.el ends here