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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Mustache helper to load strings from string_manager.
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*
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* @package core
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* @category output
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* @copyright 2015 Damyon Wiese
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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namespace core\output;
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use Mustache_LambdaHelper;
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use stdClass;
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/**
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* This class will load language strings in a template.
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*
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* @copyright 2015 Damyon Wiese
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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* @since 2.9
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*/
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class mustache_string_helper {
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/**
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* Read a lang string from a template and get it from get_string.
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*
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* Some examples for calling this from a template are:
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*
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* {{#str}}activity{{/str}}
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* {{#str}}actionchoice, core, {{#str}}delete{{/str}}{{/str}} (Nested)
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* {{#str}}addinganewto, core, {"what":"This", "to":"That"}{{/str}} (Complex $a)
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*
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* The args are comma separated and only the first is required.
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* The last is a $a argument for get string. For complex data here, use JSON.
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*
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* @param string $text The text to parse for arguments.
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* @param Mustache_LambdaHelper $helper Used to render nested mustache variables.
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* @return string
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*/
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public function str($text, Mustache_LambdaHelper $helper) {
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// Split the text into an array of variables.
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$key = strtok($text, ",");
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$key = trim($key);
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$component = strtok(",");
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$component = trim($component);
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if (!$component) {
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$component = '';
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}
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$a = new stdClass();
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$next = strtok('');
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$next = trim($next);
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if ((strpos($next, '{') === 0) && (strpos($next, '{{') !== 0)) {
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$rawjson = $helper->render($next);
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$a = json_decode($rawjson);
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} else {
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$a = $helper->render($next);
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}
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return get_string($key, $component, $a);
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}
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}
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