// // Eloy Lafuente // // // // This program is free software; you can redistribute it and/or modify // // it under the terms of the GNU General Public License as published by // // the Free Software Foundation; either version 2 of the License, or // // (at your option) any later version. // // // // This program is distributed in the hope that it will be useful, // // but WITHOUT ANY WARRANTY; without even the implied warranty of // // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // // GNU General Public License for more details: // // // // http://www.gnu.org/copyleft/gpl.html // // // /////////////////////////////////////////////////////////////////////////// // Given XML multilinguage text, return relevant text according to // current language. i.e.= // - look for lang sections in the code. // - if there exists texts in the currently active language, print them. // - else, if there exists texts in the current parent language, print them. // - else, if there are English texts, print them // - else, print the first language in the text. // // This is an improved version of the original multilang filter by Gaėtan Frenoy. // It should be 100% compatible with the original one. Some new features are: // - Supports a new "short" syntax to make things easier. Simply use: // // - Needs less resources and executes faster. // - Allows any type of content to be used. No restrictions at all! function multilang_filter($courseid, $text) { global $CFG; /// Do a quick check using stripos to avoid unnecessary work if (stripos($text, 'currenttextiscacheable = false; /// Get current language $currentlang = current_language(); /// Get parent language $langfile = "$CFG->dirroot/lang/$currentlang/moodle.php"; if ($result = get_string_from_file("parentlanguage", "$langfile", "\$parentlang")) { eval($result); } /// Create an array of preffered languages $preflangs = array(); $preflangs[] = $currentlang; /// First, the current lang if (!empty($parentlang)) { $preflangs[] = $parentlang; /// Then, if available, the parent lang } if ($currentlang != 'en') { $preflangs[] = 'en'; /// Finally, if not used, add the en lang } /// Break the text into lang sections $search = '/(.+?)<\/lang>/is'; preg_match_all($search,$text,$list_of_langs); /// Get the existing sections langs $minpref = count($preflangs); $bestkey = 0; //Iterate foreach ($list_of_langs[1] as $key => $lang) { $foundkey = array_search($lang, $preflangs); if ($foundkey !== false && $foundkey !== NULL && $foundkey < $minpref) { $minpref = $foundkey; $bestkey = $key; if ($minpref == 0) { continue; //The best has been found. Leave iteration. } } } $text = trim($list_of_langs[2][$bestkey]); return $text; } ?>