annotate lisp/config.el @ 558:ed498ef2108b

[xemacs-hg @ 2001-05-23 09:59:33 by ben] xemacs.mak: call `ver' to get the exact os version and put it in the installation; suggestion from adrian. behavior-defs.el: Add scroll-in-place, jka-compr, efs, fix up some things. pop.c: Remove BROKEN_CYGWIN. etc\sample.init.el: Rewrite to be much more careful about loading features -- now it decays gracefully even in the complete absence of packages. Also avoid doing obnoxious things when loading efs. configure.in: add some support for eventually turning on file coding by default. Fix numerous places where AC_MSG_WARN had quotes around its arg, which is bad. Replace with []. Same for AC_MSG_ERROR. s\cygwin32.h, s\mingw32.h: remove support for way old beta versions of cygwin. don't put -Wno-sign-compare in the system switches; this isn't a system issue. define BROKEN_SIGIO for cygwin to get C-g support. device-msw.c: signal an error rather than crash with an unavailable network printer (from Mike Alexander). event-msw.c: cleanup headers. fix (hopefully) an error with data corruption when sending to a network connection. fileio.c: Fix evil code that attempts to handle the ~user prefix by (a) always assuming we're referencing ourselves and not even verifying the user -- hence any file with a tilde as its first char is invalid! (b) if there wasn't a slash following the filename, the pointer was set *past* the end of file and we started reading from uninitialized memory. Now we simply treat these as files, always. optionally for 21.4 (doc fix): lread.c: cambia de pas_de_lache_ici -- al minimo usa la palabra certa. frame.c: fix warnings. emacs.c, nt.c, ntproc.c, process-nt.c, realpath.c, unexnt.c: rename MAX_PATH to standard PATH_MAX. process-nt.c, realpath.c: cleanup headers. process-unix.c, sysdep.c, systime.h, syswindows.h: kill BROKEN_CYGWIN and support for way old beta versions of cygwin. sysfile.h: use _MAX_PATH (Windows) preferentially for PATH_MAX if defined. include io.h on Cygwin (we need get_osfhandle()). include sys/fcntl.h always, since we were including it in various header files anyway. unexcw.c: fix up style to conform to standard. remove duplicate definition of PERROR. buffer.c: comment change. database.c, debug.h, device-tty.c, dired-msw.c, glyphs-msw.c: header cleanups (remove places that directly include a system header file, because we have our own layer to do this more cleanly and portably); indentation fixes.
author ben
date Wed, 23 May 2001 09:59:48 +0000
parents 3ecd8885ac67
children 308d34e9f07d
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1 ;;; config.el --- access configuration parameters
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2
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3 ;; Copyright (C) 1997 Sun Microsystems, Inc.
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4
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5 ;; Author: Martin Buchholz
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6 ;; Keywords: configure
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7
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8 ;; This file is part of XEmacs.
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9
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10 ;; XEmacs is free software; you can redistribute it and/or modify
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11 ;; it under the terms of the GNU General Public License as published by
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12 ;; the Free Software Foundation; either version 2, or (at your option)
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13 ;; any later version.
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14
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15 ;; XEmacs is distributed in the hope that it will be useful,
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16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 ;; GNU General Public License for more details.
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19
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20 ;; You should have received a copy of the GNU General Public License
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21 ;; along with XEmacs; see the file COPYING. If not, write to the
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22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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23 ;; Boston, MA 02111-1307, USA.
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24
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25 ;;; Synched up with: not in FSF.
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26
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27 ;;; Commentary:
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28
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29 ;;; Code:
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30
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31
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32 (defvar config-value-file (expand-file-name "config.values" doc-directory)
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33 "File containing configuration parameters and their values.")
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34
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35 (defvar config-value-hash-table nil
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36 "Hash table to store configuration parameters and their values.")
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37
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38 ;;;###autoload
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39 (defun config-value-hash-table ()
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40 "Return hash table of configuration parameters and their values."
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41 (when (null config-value-hash-table)
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42 (setq config-value-hash-table (make-hash-table :size 300))
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43 (save-excursion
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44 (let ((buf (get-buffer-create " *Config*")))
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45 (set-buffer buf)
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46 (erase-buffer)
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47 (insert-file-contents config-value-file)
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48 (goto-char (point-min))
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49 (condition-case nil
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50 (while t
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51 (let* ((key (read buf))
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52 (value (read buf))
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53 (prev (gethash key config-value-hash-table)))
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54 (cond ((null prev)
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55 (puthash key value config-value-hash-table))
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56 ((atom prev)
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57 (puthash key (list prev value) config-value-hash-table))
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58 (t
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59 (nconc prev (list value))))))
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60 (end-of-file nil)))
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61 (kill-buffer " *Config*")))
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62 config-value-hash-table)
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63
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64 ;;;###autoload
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65 (defun config-value (config-symbol)
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66 "Return the value of the configuration parameter CONFIG_SYMBOL."
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67 (gethash config-symbol (config-value-hash-table)))
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68
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69 (provide 'config)
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70 ;;; config.el ends here