1*307c6980SAndreas Gohr<?php 2*307c6980SAndreas Gohr 3*307c6980SAndreas Gohrnamespace dokuwiki\plugin\doi\Resolver; 4*307c6980SAndreas Gohr 5*307c6980SAndreas Gohrabstract class AbstractIsbnResolver extends AbstractResolver 6*307c6980SAndreas Gohr{ 7*307c6980SAndreas Gohr public function __construct() 8*307c6980SAndreas Gohr { 9*307c6980SAndreas Gohr $this->defaultResult['idtype'] = 'ISBN'; 10*307c6980SAndreas Gohr $this->defaultResult['type'] = 'book'; 11*307c6980SAndreas Gohr } 12*307c6980SAndreas Gohr 13*307c6980SAndreas Gohr /** @inheritdoc */ 14*307c6980SAndreas Gohr public function getFallbackURL($id) 15*307c6980SAndreas Gohr { 16*307c6980SAndreas Gohr return 'https://www.google.com/search?q=isbn+' . rawurlencode($id); 17*307c6980SAndreas Gohr } 18*307c6980SAndreas Gohr 19*307c6980SAndreas Gohr /** @inheritdoc */ 20*307c6980SAndreas Gohr public function cleanID($id) 21*307c6980SAndreas Gohr { 22*307c6980SAndreas Gohr return preg_replace('/[^0-9X]/i', '', $id); 23*307c6980SAndreas Gohr } 24*307c6980SAndreas Gohr 25*307c6980SAndreas Gohr 26*307c6980SAndreas Gohr} 27