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<?php
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/**
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This software consists of voluntary contributions made by many individuals
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* and is licensed under the LGPL. For more information please see
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* <http://phing.info>.
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*/
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/**
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* The generic element handler class.
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*
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* This class handles the occurrence of runtime registered tags like
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* datatypes (fileset, patternset, etc) and it's possible nested tags. It
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* introspects the implementation of the class and sets up the data structures.
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*
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* @author Michiel Rook <mrook@php.net>
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* @copyright 2001,2002 THYRELL. All rights reserved
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* @package phing.parser
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*/
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class ElementHandler extends AbstractHandler
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{
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/**
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* Reference to the parent object that represents the parent tag
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* of this nested element
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*
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* @var object
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*/
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private $parent;
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/**
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* Reference to the child object that represents the child tag
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* of this nested element
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*
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* @var UnknownElement
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*/
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private $child;
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/**
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* Reference to the parent wrapper object
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*
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* @var RuntimeConfigurable
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*/
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private $parentWrapper;
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/**
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* Reference to the child wrapper object
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*
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* @var RuntimeConfigurable
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*/
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private $childWrapper;
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/**
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* Reference to the related target object
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*
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* @var Target the target instance
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*/
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private $target;
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/**
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* @var ProjectConfigurator
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*/
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private $configurator;
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/**
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* Constructs a new NestedElement handler and sets up everything.
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*
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* @param AbstractSAXParser $parser the ExpatParser object
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* @param AbstractHandler $parentHandler the parent handler that invoked this handler
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* @param ProjectConfigurator $configurator the ProjectConfigurator object
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* @param UnknownElement $parent the parent object this element is contained in
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* @param RuntimeConfigurable $parentWrapper the parent wrapper object
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* @param Target $target the target object this task is contained in
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*/
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public function __construct(
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AbstractSAXParser $parser,
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AbstractHandler $parentHandler,
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ProjectConfigurator $configurator,
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UnknownElement $parent = null,
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RuntimeConfigurable $parentWrapper = null,
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Target $target = null
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) {
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parent::__construct($parser, $parentHandler);
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$this->configurator = $configurator;
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if ($parentWrapper != null) {
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$this->parent = $parentWrapper->getProxy();
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} else {
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$this->parent = $parent;
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}
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$this->parentWrapper = $parentWrapper;
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$this->target = $target;
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}
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/**
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* Executes initialization actions required to setup the data structures
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* related to the tag.
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* <p>
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* This includes:
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* <ul>
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* <li>creation of the nested element</li>
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* <li>calling the setters for attributes</li>
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* <li>adding the element to the container object</li>
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* <li>adding a reference to the element (if id attribute is given)</li>
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* </ul>
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*
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* @param string $tag the tag that comes in
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* @param array $attrs attributes the tag carries
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* @throws ExpatParseException if the setup process fails
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*/
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public function init($tag, $attrs)
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{
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$configurator = $this->configurator;
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$project = $this->configurator->project;
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try {
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$this->child = new UnknownElement(strtolower($tag));
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$this->child->setTaskName($tag);
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$this->child->setTaskType($tag);
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$this->child->setProject($project);
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$this->child->setLocation($this->parser->getLocation());
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if ($this->target !== null) {
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$this->child->setOwningTarget($this->target);
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}
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if ($this->parent !== null) {
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$this->parent->addChild($this->child);
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} elseif ($this->target !== null) {
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$this->target->addTask($this->child);
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}
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$configurator->configureId($this->child, $attrs);
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$this->childWrapper = new RuntimeConfigurable($this->child, $tag);
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$this->childWrapper->setAttributes($attrs);
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if ($this->parentWrapper !== null) {
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$this->parentWrapper->addChild($this->childWrapper);
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}
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} catch (BuildException $exc) {
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throw new ExpatParseException(
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"Error initializing nested element <$tag>",
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$exc,
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$this->parser->getLocation()
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);
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}
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}
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/**
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* Handles character data.
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*
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* @param string $data the CDATA that comes in
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* @throws ExpatParseException if the CDATA could not be set-up properly
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*/
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public function characters($data)
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{
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$this->childWrapper->addText($data);
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}
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/**
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* Checks for nested tags within the current one. Creates and calls
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* handlers respectively.
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*
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* @param string $name the tag that comes in
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* @param array $attrs attributes the tag carries
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*/
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public function startElement($name, $attrs)
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{
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1
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$eh = new ElementHandler(
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1
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$this->parser,
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$this,
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$this->configurator,
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$this->child,
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$this->childWrapper,
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$this->target
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);
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$eh->init($name, $attrs);
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}
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}
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siad007