98 lines
3.4 KiB
PHP
98 lines
3.4 KiB
PHP
<?php
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/* vim: set expandtab tabstop=4 shiftwidth=4: */
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//
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// Copyright (c) 2004-2005 Laurent Bedubourg
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// Authors: Laurent Bedubourg <lbedubourg@motion-twin.com>
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//
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/**
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* Stores XMLNS aliases fluctuation in the xml flow.
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*
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* This class is used to bind a PHPTAL namespace to an alias, for example using
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* xmlns:t="http://xml.zope.org/namespaces/tal" and later use t:repeat instead
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* of tal:repeat.
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*
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* @package phptal.dom
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* @author Laurent Bedubourg <lbedubourg@motion-twin.com>
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*/
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class PHPTAL_Dom_XmlnsState
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{
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/** Create a new XMLNS state inheriting provided aliases. */
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public function __construct($aliases = array())
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{
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assert(is_array($aliases));
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$this->_aliases = $aliases;
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}
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/** Returns true if $attName is a valid attribute name, false otherwise. */
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public function isValidAttribute($attName)
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{
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$unaliased = $this->unAliasAttribute($attName);
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return PHPTAL_Dom_Defs::getInstance()->isValidAttribute($unaliased);
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}
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/** Returns true if $attName is a PHPTAL attribute, false otherwise. */
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public function isPhpTalAttribute($attName)
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{
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$unaliased = $this->unAliasAttribute($attName);
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return PHPTAL_Dom_Defs::getInstance()->isPhpTalAttribute($unaliased);
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}
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/** Returns the unaliased name of specified attribute. */
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public function unAliasAttribute($attName)
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{
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if (count($this->_aliases) == 0)
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return $attName;
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$result = $attName;
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foreach ($this->_aliases as $alias => $real){
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$result = str_replace("$alias:", "$real:", $result);
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}
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return $result;
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}
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/**
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* Returns a new XmlnsState inheriting of $currentState if $nodeAttributes contains
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* xmlns attributes, returns $currentState otherwise.
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*
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* This method is used by the PHPTAL parser to keep track of xmlns fluctuation for
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* each encountered node.
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*/
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public static function newElement(PHPTAL_Dom_XmlnsState $currentState, $nodeAttributes)
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{
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$aliases = array();
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foreach ($nodeAttributes as $att => $value){
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if (PHPTAL_Dom_Defs::getInstance()->isHandledXmlNs($att, $value)){
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preg_match('/^xmlns:(.*?)$/', $att, $m);
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list(,$alias) = $m;
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$aliases[$alias] = PHPTAL_Dom_Defs::getInstance()->xmlnsToLocalName($value);
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}
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}
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if (count($aliases) > 0){
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// inherit aliases with maybe an overwrite
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$aliases = array_merge($currentState->_aliases, $aliases);
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return new PHPTAL_Dom_XmlnsState($aliases);
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}
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return $currentState;
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}
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private $_aliases;
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}
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?>
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