// // 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, print the first language in the text. // Please note that English texts are not used as default anymore! // // This is an improved version of the original multilang filter by Gaetan 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) { // [pj] I don't know about you but I find this new implementation funny :P // [skodak] I was laughing while rewriting it ;-) $search = '/(<(?:lang|span) lang="[a-zA-Z0-9_-]*".*?>.+?<\/(?:lang|span)>\s*)+/is'; return preg_replace_callback($search, 'multilang_filter_impl', $text); } function multilang_filter_impl($langblock) { $mylang = str_replace('_utf8', '', current_language()); static $parentcache; if (!isset($parentcache)) { $parentcache = array(); } if (!array_key_exists($mylang, $parentcache)) { $parentlang = str_replace('_utf8', '', get_string('parentlanguage')); $parentcache[$mylang] = $parentlang; } else { $parentlang = $parentcache[$mylang]; } $searchtosplit = '/<(?:lang|span) lang="([a-zA-Z0-9_-]*)".*?>(.+?)<\/(?:lang|span)>/is'; preg_match_all($searchtosplit, $langblock[0], $rawlanglist); $langlist = array(); foreach ($rawlanglist[1] as $index=>$lang) { $lang = str_replace('_utf8', '', str_replace('-','_',strtolower($lang))); // normalize languages $langlist[$lang] = $rawlanglist[2][$index]; } if (array_key_exists($mylang, $langlist)) { return $langlist[$mylang]; } else if (array_key_exists($parentlang, $langlist)) { return $langlist[$parentlang]; } else { $first = array_shift($langlist); return $first; } } ?>