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<?php
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/**
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* TTextProcessor class file
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*
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @link http://www.pradosoft.com/
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* @copyright Copyright © 2005-2008 PradoSoft
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* @license http://www.pradosoft.com/license/
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* @version $Id: TTextProcessor.php 2541 2008-10-21 15:05:13Z qiang.xue $
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* @package System.Web.UI.WebControls
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*/
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/**
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* TTextProcessor class.
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*
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* TTextProcessor is the base class for classes that process or transform
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* text content into different forms. The text content to be processed
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* is specified by {@link setText Text} property. If it is not set, the body
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* content enclosed within the processor control will be processed and rendered.
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* The body content includes static text strings and the rendering result
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* of child controls.
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*
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* Note, all child classes must implement {@link processText} method.
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*
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @version $Id: TTextProcessor.php 2541 2008-10-21 15:05:13Z qiang.xue $
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* @package System.Web.UI
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* @since 3.0.1
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*/
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abstract class TTextProcessor extends TWebControl
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{
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/**
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* Processes a text string.
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* This method must be implemented by child classes.
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* @param string text string to be processed
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* @return string the processed text result
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*/
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abstract public function processText($text);
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/**
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* HTML-decodes static text.
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* This method overrides parent implementation.
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* @param mixed object to be added as body content
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*/
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public function addParsedObject($object)
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{
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if(is_string($object))
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$object=html_entity_decode($object,ENT_QUOTES,'UTF-8');
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parent::addParsedObject($object);
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}
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/**
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* @return string text to be processed
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*/
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public function getText()
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{
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return $this->getViewState('Text','');
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}
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/**
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* @param string text to be processed
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*/
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public function setText($value)
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{
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$this->setViewState('Text',$value);
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}
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/**
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* Renders body content.
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* This method overrides the parent implementation by replacing
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* the body content with the processed text content.
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* @param THtmlWriter writer
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*/
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public function renderContents($writer)
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{
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if(($text=$this->getText())==='' && $this->getHasControls())
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{
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$textWriter=new TTextWriter;
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parent::renderContents(new THtmlWriter($textWriter));
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$text=$textWriter->flush();
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}
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if($text!=='')
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$writer->write($this->processText($text));
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}
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}
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