?? visitorpattern
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<?xml version="1.0" encoding="iso-8859-1"?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><!-- $Id: head.tmpl,v 1.5 2002/12/15 01:30:47 carstenklapp Exp $ --><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /><meta name="robots" content="index,follow" /><meta name="keywords" content="Visitor Pattern, PhpWiki" /><meta name="description" content="The visitor pattern provides a SAX-view to the parser. It allows a SAX-like interface for parsing with the <i>NodeVisitor</i> class." /><meta name="language" content="" /><meta name="document-type" content="Public" /><meta name="document-rating" content="General" /><meta name="generator" content="phpWiki" /><meta name="PHPWIKI_VERSION" content="1.3.4" /><link rel="shortcut icon" href="/wiki/themes/default/images/favicon.ico" /><link rel="home" title="HomePage" href="HomePage" /><link rel="help" title="HowToUseWiki" href="HowToUseWiki" /><link rel="copyright" title="GNU General Public License" href="http://www.gnu.org/copyleft/gpl.html#SEC1" /><link rel="author" title="The PhpWiki Programming Team" href="http://phpwiki.sourceforge.net/phpwiki/ThePhpWikiProgrammingTeam" /><link rel="search" title="FindPage" href="FindPage" /><link rel="alternate" title="View Source: VisitorPattern" href="VisitorPattern?action=viewsource&version=2" /><link rel="alternate" type="application/rss+xml" title="RSS" href="RecentChanges?format=rss" /><link rel="bookmark" title="SandBox" href="SandBox" /><link rel="bookmark" title="WikiWikiWeb" href="WikiWikiWeb" /><link rel="stylesheet" title="MacOSX" type="text/css" charset="iso-8859-1" href="/wiki/themes/MacOSX/MacOSX.css" /><link rel="alternate stylesheet" title="Printer" type="text/css" charset="iso-8859-1" href="/wiki/themes/default/phpwiki-printer.css" media="print, screen" /><link rel="alternate stylesheet" title="Modern" type="text/css" charset="iso-8859-1" href="/wiki/themes/default/phpwiki-modern.css" /><style type="text/css"><!--body {background-image: url(/wiki/themes/MacOSX/images/bgpaper8.png);}--></style><title>PhpWiki - Visitor Pattern</title></head><!-- End head --><!-- Begin body --><!-- $Id: body.tmpl,v 1.30 2002/09/02 14:36:58 rurban Exp $ --><body><!-- Begin top --><!-- $Id: top.tmpl,v 1.20 2002/12/15 01:30:47 carstenklapp Exp $ --><!-- End top --><!-- Begin browse --><!-- $Id: browse.tmpl,v 1.22 2002/02/19 23:00:26 carstenklapp Exp $ --><div class="wikitext"><p><b>Visitor Pattern</b></p><p>The visitor pattern provides a SAX-view to the parser. It allows a SAX-like interface for parsing with the <i><span class="wikiunknown"><u>NodeVisitor</u><a href="NodeVisitor?action=edit"><img src="../themes/MacOSX/buttons/uww.png" alt="?" class="wiki-button" border="0" /></a></span></i> class.</p><p>Among other things, the visitor pattern makes it very simple to customize processing of a web-page, and cleanly seperate such code. Check <a href="../index.php/LinkExtraction" class="wiki">LinkExtraction</a> for an example.</p><p>--<a href="../index.php/SomikRaha" class="wiki">SomikRaha</a></p></div><!-- End browse --><!-- Begin bottom --><!-- $Id: bottom.tmpl,v 1.3 2002/09/15 20:21:16 rurban Exp $ --><!-- Add your Disclaimer here --><!-- Begin debug --><!-- $Id: debug.tmpl,v 1.9 2002/09/17 02:10:33 dairiki Exp $ --><table width="%100" border="0" cellpadding="0" cellspacing="0"><tr><td></td><td><span class="debug">Page Execution took 0.303 seconds</span></td></tr></table><!-- This keeps the valid XHTML! icons from "hanging off the bottom of the scree" --><br style="clear: both;" /><!-- End debug --><!-- End bottom --></body><!-- End body --><!-- phpwiki source:$Id: prepend.php,v 1.13 2002/09/18 19:23:25 dairiki Exp $$Id: ErrorManager.php,v 1.16 2002/09/14 22:23:36 dairiki Exp $$Id: HtmlElement.php,v 1.27 2002/10/31 03:28:30 carstenklapp Exp $$Id: XmlElement.php,v 1.17 2002/08/17 15:52:51 rurban Exp $$Id: WikiCallback.php,v 1.2 2001/11/21 20:01:52 dairiki Exp $$Id: index.php,v 1.99 2002/12/31 01:13:14 wainstead Exp $$Id: main.php,v 1.90 2002/11/19 07:07:37 carstenklapp Exp $$Id: config.php,v 1.68 2002/11/14 22:28:03 carstenklapp Exp $$Id: FileFinder.php,v 1.11 2002/09/18 18:34:13 dairiki Exp $$Id: Request.php,v 1.24 2002/12/14 16:21:46 dairiki Exp $$Id: WikiUser.php,v 1.29 2002/11/19 07:07:38 carstenklapp Exp $$Id: WikiDB.php,v 1.17 2002/09/15 03:56:22 dairiki Exp $$Id: SQL.php,v 1.2 2001/09/19 03:24:36 wainstead Exp $$Id: mysql.php,v 1.3 2001/12/08 16:02:35 dairiki Exp $$Id: PearDB.php,v 1.28 2002/09/12 11:45:33 rurban Exp $$Id: backend.php,v 1.3 2002/01/10 23:32:04 carstenklapp Exp $$Id: DB.php,v 1.2 2002/09/12 11:45:33 rurban Exp $From Pear CVS: Id: DB.php,v 1.13 2002/07/02 15:19:49 cox Exp$Id: PEAR.php,v 1.1 2002/01/28 04:01:56 dairiki Exp $From Pear CVS: Id: PEAR.php,v 1.29 2001/12/15 15:01:35 mj Exp$Id: mysql.php,v 1.2 2002/09/12 11:45:33 rurban Exp $From Pear CVS: Id: mysql.php,v 1.5 2002/06/19 00:41:06 cox Exp$Id: common.php,v 1.2 2002/09/12 11:45:33 rurban Exp $From Pear CVS: Id: common.php,v 1.8 2002/06/12 15:03:16 fab Exp$Id: themeinfo.php,v 1.46 2002/03/08 20:31:14 carstenklapp Exp $$Id: Theme.php,v 1.58 2002/10/12 08:55:03 carstenklapp Exp $$Id: display.php,v 1.38 2002/09/15 20:17:58 rurban Exp $$Id: Template.php,v 1.46 2002/09/15 15:05:47 rurban Exp $$Id: WikiPlugin.php,v 1.27 2002/11/04 03:15:59 carstenklapp Exp $$Id: BlockParser.php,v 1.29 2002/11/25 22:25:49 dairiki Exp $$Id: InlineParser.php,v 1.19 2002/11/25 22:51:37 dairiki Exp $$Id: interwiki.php,v 1.23 2002/10/06 16:45:10 dairiki Exp $$Id: PageType.php,v 1.13 2002/09/04 20:39:47 dairiki Exp $--></html>?? 快捷鍵說明
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