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Fix performance regression in refactored syntax cache setup. More doc improvements. * syntax.h (enum syntax_source): New. Specify whether syntax is from property or buffer. (struct syntax_cache): Use enum syntax_source source, instead of no_syntax_table_prop and use_code. Improve comments. (SOURCE_IS_TABLE): New predicate. (SYNTAX_CODE_FROM_CACHE): Use it instead of use_code, and adjust logic. * syntax.c (syntax_cache_table_was_changed): Check cache->source (cache->no_syntax_table_prop is gone). (reset_syntax_cache_range): All information about OBJECT and BUFFER is in CACHE already. Also reset markers in OBJECT if it is a buffer. Rename INFINITE to VALID_EVERYWHERE. (init_syntax_cache): Initialize source (cache->no_syntax_table_prop is gone). Maybe initialize start and end to null markers. Initialize cache range with reset_syntax_cache_range. (update_syntax_cache): Use source instead of no_syntax_table_prop and use_code. (setup_syntax_cache): Add header comment. Improve other comments. Make calls to reset_syntax_cache_range and init_syntax_cache match their prototypes. (init_buffer_syntax_cache): Use init_syntax_cache to do the work. (signal_syntax_cache_extent_changed): Make call to reset_syntax_cache_range match its prototype. Improve local variable naming.
author Stephen J. Turnbull <stephen@xemacs.org>
date Tue, 23 Aug 2011 04:41:45 +0900
parents 308d34e9f07d
children b7ae5f44b950
line wrap: on
line source

;;; widget.el --- a library of user interface components.

;; Copyright (C) 1996, 1997 Free Software Foundation, Inc.

;; Author: Per Abrahamsen <abraham@dina.kvl.dk>
;; Maintainer: Hrvoje Niksic <hniksic@xemacs.org>
;; Keywords: help, extensions, faces, hypermedia, dumped
;; Version: 1.9960-x
;; X-URL: http://www.dina.kvl.dk/~abraham/custom/

;; 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 3 of the License, 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.  If not, see <http://www.gnu.org/licenses/>.

;;; Commentary:

;; This file is dumped with XEmacs.

;; If you want to use this code, please visit the URL above.

;; This file only contain the code needed to define new widget types.
;; Everything else is autoloaded from `wid-edit.el'.

;;; Code:

;; Neither XEmacs, nor latest GNU Emacs need this -- provided for
;; compatibility.
;; (defalias 'define-widget-keywords 'ignore)

(defmacro define-widget-keywords (&rest keys)
  "This doesn't do anything in Emacs 20 or XEmacs."
  `(eval-and-compile
     (let ((keywords (quote ,keys)))
       (while keywords
	 (or (boundp (car keywords))
	     (set (car keywords) (car keywords)))
	 (setq keywords (cdr keywords))))))

(defun define-widget (name class doc &rest args)
  "Define a new widget type named NAME from CLASS.

NAME and CLASS should both be symbols, CLASS should be one of the
existing widget types, or nil to create the widget from scratch.

After the new widget has been defined, the following two calls will
create identical widgets:

* (widget-create NAME)

* (apply 'widget-create CLASS ARGS)

The third argument DOC is a documentation string for the widget."
  (check-argument-type 'symbolp name)
  (check-argument-type 'symbolp class)
  (put name 'widget-type (cons class args))
  (put name 'widget-documentation doc)
  name)

;;; The End.

(provide 'widget)

;;; widget.el ends here