1<?php
2
3/*
4 * This file is part of Twig.
5 *
6 * (c) Fabien Potencier
7 * (c) Armin Ronacher
8 *
9 * For the full copyright and license information, please view the LICENSE
10 * file that was distributed with this source code.
11 */
12
13namespace Twig\Error;
14
15/**
16 * \Exception thrown when a syntax error occurs during lexing or parsing of a template.
17 *
18 * @author Fabien Potencier <fabien@symfony.com>
19 */
20class SyntaxError extends Error
21{
22    /**
23     * Tweaks the error message to include suggestions.
24     *
25     * @param string $name  The original name of the item that does not exist
26     * @param array  $items An array of possible items
27     */
28    public function addSuggestions($name, array $items)
29    {
30        $alternatives = [];
31        foreach ($items as $item) {
32            $lev = levenshtein($name, $item);
33            if ($lev <= \strlen($name) / 3 || false !== strpos($item, $name)) {
34                $alternatives[$item] = $lev;
35            }
36        }
37
38        if (!$alternatives) {
39            return;
40        }
41
42        asort($alternatives);
43
44        $this->appendMessage(sprintf(' Did you mean "%s"?', implode('", "', array_keys($alternatives))));
45    }
46}
47
48class_alias('Twig\Error\SyntaxError', 'Twig_Error_Syntax');
49