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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /*  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * citeproc-php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @link        http://github.com/seboettg/citeproc-php for the source repository  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @copyright   Copyright (c) 2017 Sebastian Böttger.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @license     https://opensource.org/licenses/MIT  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace Seboettg\CiteProc\Styles;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Trait ConsecutivePunctuationCharacterTrait  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @package Seboettg\CiteProc\Styles  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @author Sebastian Böttger <[email protected]>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                trait ConsecutivePunctuationCharacterTrait  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @var array  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private $childrenPrefixes = [];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @var array  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private $childrenSuffixes = [];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @var array  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private $childrenDelimiter = [];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param $punctuationSign  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param $subject  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function removeConsecutivePunctuation($punctuationSign, $subject): string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                             147                          | 
                
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                        if (empty($punctuationSign) || preg_match("/^\s+$/", $punctuationSign)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return $subject;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $pattern = '/'.preg_quote(trim($punctuationSign), '/').'{2,}/'; | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (preg_match($pattern, $subject)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return preg_replace($pattern, $punctuationSign, $subject);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $subject;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param $child  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                     */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    protected function getChildrenAffixesAndDelimiter($child)  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        if (method_exists($child, "renderPrefix")) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                            if (!empty($child->renderPrefix()) && !in_array($child->renderPrefix(), $this->childrenPrefixes)) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                                $this->childrenPrefixes[] = $child->renderPrefix();  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        if (method_exists($child, "renderSuffix")) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                            if (!empty($child->renderSuffix()) && !in_array($child->renderSuffix(), $this->childrenSuffixes)) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                                $this->childrenSuffixes[] = $child->renderSuffix();  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        if (method_exists($child, "getDelimiter")) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                            if (!empty($child->getDelimiter()) && !in_array($child->getDelimiter(), $this->childrenDelimiter)) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                                $this->childrenDelimiter[] = $child->getDelimiter();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                             170                          | 
                
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected function removeConsecutiveChars($string)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        foreach ($this->childrenPrefixes as $prefix) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $string = $this->removeConsecutivePunctuation($prefix, $string);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        foreach ($this->childrenSuffixes as $suffix) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $string = $this->removeConsecutivePunctuation($suffix, $string);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        foreach ($this->childrenDelimiter as $delimiter) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $string = $this->removeConsecutivePunctuation($delimiter, $string);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                             175                          | 
                
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                        $string = preg_replace("/\s{2,}/", " ", $string); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $string;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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