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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle 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 3 of the License, or
// (at your option) any later version.
//
// Moodle 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.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Mustache helper to load strings from string_manager.
*
* @package core
* @category output
* @copyright 2015 Damyon Wiese
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
namespace core\output;
use Mustache_LambdaHelper;
use stdClass;
/**
* This class will load language strings in a template.
*
* @copyright 2015 Damyon Wiese
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
* @since 2.9
*/
class mustache_string_helper {
/**
* Read a lang string from a template and get it from get_string.
*
* Some examples for calling this from a template are:
*
* {{#str}}activity{{/str}}
* {{#str}}actionchoice, core, {{#str}}delete{{/str}}{{/str}} (Nested)
* {{#str}}addinganewto, core, {"what":"This", "to":"That"}{{/str}} (Complex $a)
*
* The args are comma separated and only the first is required.
* The last is a $a argument for get string. For complex data here, use JSON.
*
* @param string $text The text to parse for arguments.
* @param Mustache_LambdaHelper $helper Used to render nested mustache variables.
* @return string
*/
public function str($text, Mustache_LambdaHelper $helper) {
// Split the text into an array of variables.
$key = strtok($text, ",");
$key = trim($key);
$component = strtok(",");
$component = trim($component);
if (!$component) {
$component = '';
}
$a = new stdClass();
$next = strtok('');
$next = trim($next);
if ((strpos($next, '{') === 0) && (strpos($next, '{{') !== 0)) {
$rawjson = $helper->render($next);
$a = json_decode($rawjson);
} else {
$a = $helper->render($next);
}
return get_string($key, $component, $a);
}
}