Files
moodle/filter/multilang/filter.php
T
stronk7 71c235bca4 New release of the multilang filter:
- 100% compatible with previous "Multilang" filter.
    - Supports a new "short" syntax to make things easier. Simply use:
        <lang lang="XX">
    - It needs less resources and executes faster.
    - It Allows any type of content to be used. No restrictions at all!

Merged from MOODLE_14_STABLE
2004-11-07 17:11:57 +00:00

96 lines
3.9 KiB
PHP

<?php //$Id$
///////////////////////////////////////////////////////////////////////////
// //
// This program is part of Moodle - Modular Object-Oriented Dynamic //
// Learning Environment - http://moodle.org //
// //
// Copyright (C) 2004 Gaëtan Frenoy <gaetan à frenoy.net> //
// Eloy Lafuente <stronk7@moodle.org> //
// //
// 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 Gaëtan 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:
// <lang lang="XX">
// - 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, '<lang') === false) {
return $text;
}
/// Flag this text as something not to cache
$CFG->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
$search = '/<lang lang="([a-zA-Z_]*)".*?>(.+?)<\/lang>/is';
preg_match_all($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;
}
?>