<?php /** * @package Joomla.Administrator * @subpackage com_finder * * @copyright Copyright (C) 2005 - 2019 Open Source Matters, Inc. All rights reserved. * @license GNU General Public License version 2 or later; see LICENSE.txt */ defined('_JEXEC') or die; JLoader::register('FinderIndexerStemmer', dirname(__DIR__) . '/stemmer.php'); /** * Snowball stemmer class for the Finder indexer package. * * @since 2.5 */ class FinderIndexerStemmerSnowball extends FinderIndexerStemmer { /** * Method to stem a token and return the root. * * @param string $token The token to stem. * @param string $lang The language of the token. * * @return string The root token. * * @since 2.5 */ public function stem($token, $lang) { // Language to use if All is specified. static $defaultLang = ''; // If language is All then try to get site default language. if ($lang === '*' && $defaultLang === '') { $languages = JLanguageHelper::getLanguages(); $defaultLang = isset($languages[0]->sef) ? $languages[0]->sef : '*'; $lang = $defaultLang; } // Stem the token if it is not in the cache. if (!isset($this->cache[$lang][$token])) { // Get the stem function from the language string. switch ($lang) { // Danish stemmer. case 'da': $function = 'stem_danish'; break; // German stemmer. case 'de': $function = 'stem_german'; break; // English stemmer. default: case 'en': $function = 'stem_english'; break; // Spanish stemmer. case 'es': $function = 'stem_spanish'; break; // Finnish stemmer. case 'fi': $function = 'stem_finnish'; break; // French stemmer. case 'fr': $function = 'stem_french'; break; // Hungarian stemmer. case 'hu': $function = 'stem_hungarian'; break; // Italian stemmer. case 'it': $function = 'stem_italian'; break; // Norwegian stemmer. case 'nb': $function = 'stem_norwegian'; break; // Dutch stemmer. case 'nl': $function = 'stem_dutch'; break; // Portuguese stemmer. case 'pt': $function = 'stem_portuguese'; break; // Romanian stemmer. case 'ro': $function = 'stem_romanian'; break; // Russian stemmer. case 'ru': $function = 'stem_russian_unicode'; break; // Swedish stemmer. case 'sv': $function = 'stem_swedish'; break; // Turkish stemmer. case 'tr': $function = 'stem_turkish_unicode'; break; } // Stem the word if the stemmer method exists. $this->cache[$lang][$token] = function_exists($function) ? $function($token) : $token; } return $this->cache[$lang][$token]; } }