view lisp/config.el @ 4917:fce43cb76a1c

xlike cleanup, documentation -------------------- ChangeLog entries follow: -------------------- man/ChangeLog addition: 2010-02-03 Ben Wing <ben@xemacs.org> * internals/internals.texi (Top): * internals/internals.texi (Evaluation; Stack Frames; Bindings): * internals/internals.texi (Ben's README): * internals/internals.texi (Consoles; Devices; Frames; Windows): * internals/internals.texi (Window Hierarchy): * internals/internals.texi (The Window Object): * internals/internals.texi (Modules for the Basic Displayable Lisp Objects): * internals/internals.texi (Window-System Support): * internals/internals.texi (Creating a Window-System Type): * internals/internals.texi (Discussion -- Garbage Collection): Update the part at the top about how to maintain the file with more tips. Add a chapter on "window-system support" describing in a general way how the support for different window systems/device types works, including the separation between device-independent and device-dependent parts, device methods, the specific device types and the "xlike" pseudo-type. src/ChangeLog addition: 2010-02-03 Ben Wing <ben@xemacs.org> * Makefile.in.in: * Makefile.in.in (x_objs): * Makefile.in.in (gtk_gui_objs): * console-xlike-inc.h: * depend: * device-x.c: * emacs.c: * gccache-gtk.h: * gccache-gtk.h (gc_cache_lookup): * gccache-x.c: * gccache-x.c (GCCACHE_HASH): * gccache-x.h: * toolbar-gtk.c: * toolbar-gtk.c (gtk_initialize_frame_toolbars): * toolbar-x.c: * toolbar-x.c (x_initialize_frame_toolbars): * toolbar-xlike.c: * toolbar-xlike.c (xlike_draw_blank_toolbar_button): * toolbar-xlike.c (xlike_output_toolbar_button): * toolbar-xlike.c (xlike_get_button_size): * toolbar-xlike.c (XLIKE_OUTPUT_BUTTONS_LOOP): * toolbar-xlike.c (xlike_output_toolbar): * toolbar-xlike.c (xlike_clear_toolbar): * toolbar-xlike.c (xlike_output_frame_toolbars): * toolbar-xlike.c (xlike_clear_frame_toolbars): * toolbar-xlike.c (xlike_redraw_exposed_toolbar): * toolbar-xlike.c (xlike_redraw_exposed_toolbars): * toolbar-xlike.c (xlike_redraw_frame_toolbars): * toolbar-xlike.h: * toolbar-xlike.h (xlike_clear_frame_toolbars): Rename some files to make them consistent with general naming rules: xgccache.c -> gccache-x.c xgccache.h -> gccache-x.h toolbar-common.c -> toolbar-xlike.c toolbar-common.h -> toolbar-xlike.h Fix include-file references. Also change the names of functions in now-named toolbar-xlike.c to be xlike_foo() instead of common_foo(). Add a longish comment in console-xlike-inc.h describing the "xlike" system, how it works and what the various files are used for.
author Ben Wing <ben@xemacs.org>
date Wed, 03 Feb 2010 02:46:50 -0600
parents 3ecd8885ac67
children 308d34e9f07d
line wrap: on
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;;; config.el --- access configuration parameters

;; Copyright (C) 1997 Sun Microsystems, Inc.

;; Author:   Martin Buchholz
;; Keywords: configure

;; 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, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.

;;; Synched up with: not in FSF.

;;; Commentary:

;;; Code:


(defvar config-value-file (expand-file-name "config.values" doc-directory)
  "File containing configuration parameters and their values.")

(defvar config-value-hash-table nil
  "Hash table to store configuration parameters and their values.")

;;;###autoload
(defun config-value-hash-table ()
  "Return hash table of configuration parameters and their values."
  (when (null config-value-hash-table)
    (setq config-value-hash-table (make-hash-table :size 300))
    (save-excursion
      (let ((buf (get-buffer-create " *Config*")))
	(set-buffer buf)
	(erase-buffer)
	(insert-file-contents config-value-file)
	(goto-char (point-min))
	(condition-case nil
	    (while t
	      (let* ((key (read buf))
		     (value (read buf))
		     (prev (gethash key config-value-hash-table)))
		(cond ((null prev)
		       (puthash key value config-value-hash-table))
		      ((atom prev)
		       (puthash key (list prev value) config-value-hash-table))
		      (t
		       (nconc prev (list value))))))
	  (end-of-file nil)))
      (kill-buffer " *Config*")))
  config-value-hash-table)

;;;###autoload
(defun config-value (config-symbol)
  "Return the value of the configuration parameter CONFIG_SYMBOL."
  (gethash config-symbol (config-value-hash-table)))

(provide 'config)
;;; config.el ends here