source: moodle/trunk/fuentes/lib/classes/output/mustache_string_helper.php @ 1331

Last change on this file since 1331 was 1331, checked in by jrpelegrina, 3 years ago

Updated to moodle 3.0.3

File size: 2.5 KB
Line 
1<?php
2// This file is part of Moodle - http://moodle.org/
3//
4// Moodle is free software: you can redistribute it and/or modify
5// it under the terms of the GNU General Public License as published by
6// the Free Software Foundation, either version 3 of the License, or
7// (at your option) any later version.
8//
9// Moodle is distributed in the hope that it will be useful,
10// but WITHOUT ANY WARRANTY; without even the implied warranty of
11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12// GNU General Public License for more details.
13//
14// You should have received a copy of the GNU General Public License
15// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
16
17/**
18 * Mustache helper to load strings from string_manager.
19 *
20 * @package    core
21 * @category   output
22 * @copyright  2015 Damyon Wiese
23 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
24 */
25
26namespace core\output;
27
28use Mustache_LambdaHelper;
29use stdClass;
30
31/**
32 * This class will load language strings in a template.
33 *
34 * @copyright  2015 Damyon Wiese
35 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
36 * @since      2.9
37 */
38class mustache_string_helper {
39
40    /**
41     * Read a lang string from a template and get it from get_string.
42     *
43     * Some examples for calling this from a template are:
44     *
45     * {{#str}}activity{{/str}}
46     * {{#str}}actionchoice, core, {{#str}}delete{{/str}}{{/str}} (Nested)
47     * {{#str}}addinganewto, core, {"what":"This", "to":"That"}{{/str}} (Complex $a)
48     *
49     * The args are comma separated and only the first is required.
50     * The last is a $a argument for get string. For complex data here, use JSON.
51     *
52     * @param string $text The text to parse for arguments.
53     * @param Mustache_LambdaHelper $helper Used to render nested mustache variables.
54     * @return string
55     */
56    public function str($text, Mustache_LambdaHelper $helper) {
57        // Split the text into an array of variables.
58        $key = strtok($text, ",");
59        $key = trim($key);
60        $component = strtok(",");
61        $component = trim($component);
62        if (!$component) {
63            $component = '';
64        }
65
66        $a = new stdClass();
67
68        $next = strtok('');
69        $next = trim($next);
70        if ((strpos($next, '{') === 0) && (strpos($next, '{{') !== 0)) {
71            $rawjson = $helper->render($next);
72            $a = json_decode($rawjson);
73        } else {
74            $a = $helper->render($next);
75        }
76        return get_string($key, $component, $a);
77    }
78}
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