305 lines
8.9 KiB
PHP
305 lines
8.9 KiB
PHP
<?php
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/**
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* CPradoViewRenderer class file.
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*
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* @author Steve Heyns http://customgothic.com/
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @link http://www.yiiframework.com/
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* @copyright 2008-2013 Yii Software LLC
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* @license http://www.yiiframework.com/license/
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*/
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/**
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* CPradoViewRenderer implements a view renderer that allows users to use a template syntax similar to PRADO templates.
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*
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* To use CPradoViewRenderer, configure it as an application component named "viewRenderer" in the application configuration:
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* <pre>
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* array(
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* 'components'=>array(
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* ......
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* 'viewRenderer'=>array(
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* 'class'=>'CPradoViewRenderer',
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* ),
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* ),
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* )
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* </pre>
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*
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* CPradoViewRenderer allows you to write view files with the following syntax:
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* <pre>
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* // PHP tags:
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* <%= expression %>
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* // <?php echo expression ?>
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* <% statement %>
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* // <?php statement ?></li>
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*
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* // component tags:
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* <com:WigetClass name1="value1" name2='value2' name3={value3} >
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* // <?php $this->beginWidget('WigetClass',
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* // array('name1'=>"value1", 'name2'=>'value2', 'name3'=>value3)); ?>
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* </com:WigetClass >
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* // <?php $this->endWidget('WigetClass'); ?>
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* <com:WigetClass name1="value1" name2='value2' name3={value3} />
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* // <?php $this->widget('WigetClass',
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* // array('name1'=>"value1", 'name2'=>'value2', 'name3'=>value3)); ?>
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*
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* // cache tags:
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* <cache:fragmentID name1="value1" name2='value2' name3={value3} >
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* // <?php if($this->beginCache('fragmentID',
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* // array('name1'=>"value1", 'name2'=>'value2', 'name3'=>value3))): ?>
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* </cache:fragmentID >
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* // <?php $this->endCache('fragmentID'); endif; ?>
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*
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* // clip tags:
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* <clip:clipID >
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* // <?php $this->beginClip('clipID'); ?>
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* </clip:clipID >
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* // <?php $this->endClip('clipID'); ?>
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*
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* // comment tags:
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* <!--- comments --->
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* // the whole tag will be stripped off
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* </pre>
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*
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* @author Steve Heyns http://customgothic.com/
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @package system.web.renderers
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* @since 1.0
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*/
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class CPradoViewRenderer extends CViewRenderer
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{
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private $_input;
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private $_output;
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private $_sourceFile;
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/**
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* Parses the source view file and saves the results as another file.
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* This method is required by the parent class.
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* @param string $sourceFile the source view file path
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* @param string $viewFile the resulting view file path
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*/
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protected function generateViewFile($sourceFile,$viewFile)
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{
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static $regexRules=array(
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'<%=?\s*(.*?)\s*%>', // PHP statements or expressions
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'<\/?(com|cache|clip):([\w\.]+)\s*((?:\s*\w+\s*=\s*\'.*?(?<!\\\\)\'|\s*\w+\s*=\s*".*?(?<!\\\\)"|\s*\w+\s*=\s*\{.*?\})*)\s*\/?>', // component tags
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'<!---.*?--->', // template comments
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);
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$this->_sourceFile=$sourceFile;
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$this->_input=file_get_contents($sourceFile);
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$n=preg_match_all('/'.implode('|',$regexRules).'/msS',$this->_input,$matches,PREG_SET_ORDER|PREG_OFFSET_CAPTURE);
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$textStart=0;
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$this->_output="<?php /* source file: $sourceFile */ ?>\n";
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for($i=0;$i<$n;++$i)
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{
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$match=&$matches[$i];
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$str=$match[0][0];
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$matchStart=$match[0][1];
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$matchEnd=$matchStart+strlen($str)-1;
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if($matchStart>$textStart)
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$this->_output.=substr($this->_input,$textStart,$matchStart-$textStart);
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$textStart=$matchEnd+1;
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if(strpos($str,'<com:')===0) // opening component tag
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{
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$type=$match[3][0];
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if($str[strlen($str)-2]!=='/') // open tag
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$this->_output.=$this->processBeginWidget($type,$match[4][0],$match[2][1]);
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else
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$this->_output.=$this->processWidget($type,$match[4][0],$match[2][1]);
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}
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elseif(strpos($str,'</com:')===0) // closing component tag
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$this->_output.=$this->processEndWidget($match[3][0],$match[2][1]);
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elseif(strpos($str,'<cache:')===0) // opening cache tag
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{
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$id=$match[3][0];
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if($str[strlen($str)-2]!=='/') // open tag
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$this->_output.=$this->processBeginCache($id,$match[4][0],$match[2][1]);
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else
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$this->_output.=$this->processCache($id,$match[4][0],$match[2][1]);
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}
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elseif(strpos($str,'</cache:')===0) // closing cache tag
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$this->_output.=$this->processEndCache($match[3][0],$match[2][1]);
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elseif(strpos($str,'<clip:')===0) // opening clip tag
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{
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$id=$match[3][0];
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if($str[strlen($str)-2]!=='/') // open tag
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$this->_output.=$this->processBeginClip($id,$match[4][0],$match[2][1]);
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else
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$this->_output.=$this->processClip($id,$match[4][0],$match[2][1]);
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}
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elseif(strpos($str,'</clip:')===0) // closing clip tag
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$this->_output.=$this->processEndClip($match[3][0],$match[2][1]);
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elseif(strpos($str,'<%=')===0) // expression
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$this->_output.=$this->processExpression($match[1][0],$match[1][1]);
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elseif(strpos($str,'<%')===0) // statement
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$this->_output.=$this->processStatement($match[1][0],$match[1][1]);
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}
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if($textStart<strlen($this->_input))
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$this->_output.=substr($this->_input,$textStart);
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file_put_contents($viewFile,$this->_output);
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}
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/*
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* @param string $type type
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* @param string $attributes attributes
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* @param string $offset offset
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*/
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private function processWidget($type,$attributes,$offset)
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{
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$attrs=$this->processAttributes($attributes);
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if(empty($attrs))
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return $this->generatePhpCode("\$this->widget('$type');",$offset);
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else
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return $this->generatePhpCode("\$this->widget('$type', array($attrs));",$offset);
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}
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/*
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* @param string $type type
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* @param string $attributes attributes
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* @param string $offset offset
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*/
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private function processBeginWidget($type,$attributes,$offset)
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{
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$attrs=$this->processAttributes($attributes);
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if(empty($attrs))
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return $this->generatePhpCode("\$this->beginWidget('$type');",$offset);
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else
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return $this->generatePhpCode("\$this->beginWidget('$type', array($attrs));",$offset);
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}
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/*
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* @param string $type type
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* @param string $offset offset
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*/
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private function processEndWidget($type,$offset)
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{
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return $this->generatePhpCode("\$this->endWidget('$type');",$offset);
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}
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/*
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* @param string $id id
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* @param string $attributes attributes
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* @param string $offset offset
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*/
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private function processCache($id,$attributes,$offset)
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{
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return $this->processBeginCache($id,$attributes,$offset) . $this->processEndCache($id,$offset);
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}
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/*
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* @param string $id id
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* @param string $attributes attributes
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* @param string $offset offset
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*/
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private function processBeginCache($id,$attributes,$offset)
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{
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$attrs=$this->processAttributes($attributes);
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if(empty($attrs))
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return $this->generatePhpCode("if(\$this->beginCache('$id')):",$offset);
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else
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return $this->generatePhpCode("if(\$this->beginCache('$id', array($attrs))):",$offset);
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}
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/*
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* @param string $id id
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* @param string $offset offset
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*/
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private function processEndCache($id,$offset)
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{
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return $this->generatePhpCode("\$this->endCache('$id'); endif;",$offset);
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}
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/*
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* @param string $id id
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* @param string $attributes attributes
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* @param string $offset offset
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*/
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private function processClip($id,$attributes,$offset)
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{
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return $this->processBeginClip($id,$attributes,$offset) . $this->processEndClip($id,$offset);
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}
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/*
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* @param string $id id
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* @param string $attributes attributes
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* @param string $offset offset
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*/
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private function processBeginClip($id,$attributes,$offset)
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{
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$attrs=$this->processAttributes($attributes);
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if(empty($attrs))
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return $this->generatePhpCode("\$this->beginClip('$id');",$offset);
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else
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return $this->generatePhpCode("\$this->beginClip('$id', array($attrs));",$offset);
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}
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/*
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* @param string $id id
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* @param string $offset offset
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*/
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private function processEndClip($id,$offset)
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{
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return $this->generatePhpCode("\$this->endClip('$id');",$offset);
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}
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/*
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* @param string $expression expression
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* @param string $offset offset
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*/
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private function processExpression($expression,$offset)
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{
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return $this->generatePhpCode('echo '.$expression,$offset);
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}
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/*
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* @param string $statement statement
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* @param string $offset offset
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*/
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private function processStatement($statement,$offset)
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{
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return $this->generatePhpCode($statement,$offset);
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}
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/*
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* @param string $code code
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* @param string $offset offset
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*/
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private function generatePhpCode($code,$offset)
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{
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$line=$this->getLineNumber($offset);
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$code=str_replace('__FILE__',var_export($this->_sourceFile,true),$code);
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return "<?php /* line $line */ $code ?>";
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}
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/*
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* @param string $str str
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*/
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private function processAttributes($str)
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{
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static $pattern='/(\w+)\s*=\s*(\'.*?(?<!\\\\)\'|".*?(?<!\\\\)"|\{.*?\})/msS';
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$attributes=array();
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$n=preg_match_all($pattern,$str,$matches,PREG_SET_ORDER);
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for($i=0;$i<$n;++$i)
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{
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$match=&$matches[$i];
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$name=$match[1];
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$value=$match[2];
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if($value[0]==='{')
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$attributes[]="'$name'=>".str_replace('__FILE__',$this->_sourceFile,substr($value,1,-1));
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else
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$attributes[]="'$name'=>$value";
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}
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return implode(', ',$attributes);
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}
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/*
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* @param string $offset offset
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*/
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private function getLineNumber($offset)
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{
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return count(explode("\n",substr($this->_input,0,$offset)));
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}
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}
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