Citation.inc.php

<?php
 
import('lib.pkp.classes.core.DataObject');
 
class Citation extends DataObject {
   function __construct($rawCitation = null) {
      parent::__construct();
      $this->setRawCitation($rawCitation);
   }
 
   //
   // Getters and Setters
   //
 
   function getCitationWithLinks() {
      $citation = $this->getRawCitation();
      if (stripos($citation, '<a href=') === false) {
         $citation = preg_replace_callback(
            '#(http|https|ftp)://[\d\w\.-]+\.[\w\.]{2,6}[^\s\]\[<>]*/?#',
            function($matches) {
               $trailingDot = in_array($char = substr($matches[0], -1), array('.', ','));
               $url = rtrim($matches[0], '.,');
               return "<a href=\"$url\">$url</a>" . ($trailingDot?$char:'');
            },
            $citation
         );
      }
      return $citation;
   }
 
   function getRawCitation() {
      return $this->getData('rawCitation');
   }
 
   function setRawCitation($rawCitation) {
      $rawCitation = $this->_cleanCitationString($rawCitation);
      $this->setData('rawCitation', $rawCitation);
   }
 
   function getSequence() {
      return $this->getData('seq');
   }
 
   function setSequence($seq) {
      $this->setData('seq', $seq);
   }
 
   //
   // Private methods
   //
   function _cleanCitationString($citationString) {
      // 1) Strip slashes and whitespace
      $citationString = trim(stripslashes($citationString));
 
      // 2) Normalize whitespace
      $citationString = PKPString::regexp_replace('/[\s]+/', ' ', $citationString);
 
      return $citationString;
   }
}