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Push — master ( 1ce981...0b7883 )
by Tom
02:21
created

Nth::match()   A

↳ Parent: Nth

Complexity

Conditions 4
Paths 6

Size

Total Lines 16
Code Lines 9

Duplication

Lines 0
Ratio 0 %

Importance

Changes 3
Bugs 1 Features 0
Metric Value
c 3
b 1
f 0
dl 0
loc 16
rs 9.2
cc 4
eloc 9
nc 6
nop 3
1 
<?php
2 
/* @description     Transformation Style Sheets - Revolutionising PHP templating    *
3 
 * @author          Tom Butler [email protected]                                             *
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 * @copyright       2015 Tom Butler <[email protected]> | https://r.je/                      *
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 * @license         http://www.opensource.org/licenses/bsd-license.php  BSD License *
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 * @version         1.0                                                             */
7 
namespace Transphporm\Pseudo;
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use \Transphporm\Parser\Tokenizer;
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class Nth implements \Transphporm\Pseudo {
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	private $count = 0;
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	private $lastParentNode;
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	public function match($name, $args, \DomElement $element) {

            


            
                                                                        
                            
            
                                    
            
            

                
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		if ($element->parentNode !== $this->lastParentNode) $this->count = 0;

            


            
                                                                        
                            
            
                                    
            
            

                
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		$this->lastParentNode = $element->parentNode;

            


            
                                                                        
                            
            
                                    
            
            

                
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		if ($name !== 'nth-child') return true;

            


            
                                                                        
                            
            
                                    
            
            

                
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		$this->count++;

            


            
                                                                        
                            
            
                                    
            
            

                
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		$criteria = $args[0];

            


            
                                                                        
                            
            
                                    
            
            

                
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		if (is_callable([$this, $criteria])) return $this->$criteria($this->count);

            


            
                                                                        
                            
            
                                    
            
            

                
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		$this->assert(is_numeric($criteria), "Argument passed to 'nth-child' must be 'odd', 'even', or of type int");

            


            
                                                                        
                            
            
                                    
            
            

                
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		return $this->count == $criteria;

            


            
                                                                        
                            
            
                                    
            
            

                
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	}

            


            
                                                                                                            
                            
            
                                    
            
            

                
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	//TODO: Abstract assertions throughout

            


            
                                                                                                            
                            
            
                                    
            
            

                
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	private function assert($condition, $error) {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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		if (!$condition) throw new \Exception($error);

            


            
                                                                                                            
                            
            
                                    
            
            

                
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	}

            


            
                                                                                                            
                            
            
                                    
            
            

                
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	private function odd($num) {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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		return $num % 2 === 1;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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	}

            


            
                                                                                                            
                            
            
                                    
            
            

                
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	private function even($num) {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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		return $num % 2 === 0;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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	}

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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}

            


            
                                                        
            
                                    
            
            

                
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