Библиотека для cis, online, cms1

PHPTAL/Dom/XmlnsState.php

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+<?php
+/* vim: set expandtab tabstop=4 shiftwidth=4: */
+//  
+//  Copyright (c) 2004-2005 Laurent Bedubourg
+//  
+//  This library is free software; you can redistribute it and/or
+//  modify it under the terms of the GNU Lesser General Public
+//  License as published by the Free Software Foundation; either
+//  version 2.1 of the License, or (at your option) any later version.
+//  
+//  This library 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
+//  Lesser General Public License for more details.
+//  
+//  You should have received a copy of the GNU Lesser General Public
+//  License along with this library; if not, write to the Free Software
+//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+//  
+//  Authors: Laurent Bedubourg <lbedubourg@motion-twin.com>
+//  
+
+/**
+ * Stores XMLNS aliases fluctuation in the xml flow.
+ *
+ * This class is used to bind a PHPTAL namespace to an alias, for example using
+ * xmlns:t="http://xml.zope.org/namespaces/tal" and later use t:repeat instead 
+ * of tal:repeat.
+ *
+ * @package phptal.dom
+ * @author Laurent Bedubourg <lbedubourg@motion-twin.com>
+ */
+class PHPTAL_Dom_XmlnsState 
+{
+    /** Create a new XMLNS state inheriting provided aliases. */
+    public function __construct($aliases = array())
+    {
+        assert(is_array($aliases));
+        $this->_aliases = $aliases;
+    }
+
+    /** Returns true if $attName is a valid attribute name, false otherwise. */
+    public function isValidAttribute($attName)
+    {
+        $unaliased = $this->unAliasAttribute($attName);
+        return PHPTAL_Dom_Defs::getInstance()->isValidAttribute($unaliased);
+    }
+
+    /** Returns true if $attName is a PHPTAL attribute, false otherwise. */
+    public function isPhpTalAttribute($attName)
+    {
+        $unaliased = $this->unAliasAttribute($attName);
+        return PHPTAL_Dom_Defs::getInstance()->isPhpTalAttribute($unaliased);
+    }
+
+    /** Returns the unaliased name of specified attribute. */
+    public function unAliasAttribute($attName)
+    {
+        if (count($this->_aliases) == 0) 
+            return $attName;
+        
+        $result = $attName;
+        foreach ($this->_aliases as $alias => $real){
+            $result = str_replace("$alias:", "$real:", $result);
+        }
+        return $result;
+    }
+    
+    /** 
+     * Returns a new XmlnsState inheriting of $currentState if $nodeAttributes contains 
+     * xmlns attributes, returns $currentState otherwise.
+     *
+     * This method is used by the PHPTAL parser to keep track of xmlns fluctuation for
+     * each encountered node.
+     */
+    public static function newElement(PHPTAL_Dom_XmlnsState $currentState, $nodeAttributes)
+    {
+        $aliases = array();
+        foreach ($nodeAttributes as $att => $value){
+            if (PHPTAL_Dom_Defs::getInstance()->isHandledXmlNs($att, $value)){
+                preg_match('/^xmlns:(.*?)$/', $att, $m);
+                list(,$alias) = $m;
+                $aliases[$alias] = PHPTAL_Dom_Defs::getInstance()->xmlnsToLocalName($value);
+            }
+        }
+        if (count($aliases) > 0){
+            // inherit aliases with maybe an overwrite
+            $aliases = array_merge($currentState->_aliases, $aliases);
+            return new PHPTAL_Dom_XmlnsState($aliases);
+        }
+        return $currentState;
+    }
+
+    private $_aliases;
+}
+
+
+?>