1<?php
2
3/*
4 * This file is part of the league/commonmark package.
5 *
6 * (c) Colin O'Dell <colinodell@gmail.com>
7 *
8 * Original code based on the CommonMark JS reference parser (https://bitly.com/commonmark-js)
9 *  - (c) John MacFarlane
10 *
11 * For the full copyright and license information, please view the LICENSE
12 * file that was distributed with this source code.
13 */
14
15namespace League\CommonMark\Block\Renderer;
16
17use League\CommonMark\Block\Element\AbstractBlock;
18use League\CommonMark\Block\Element\FencedCode;
19use League\CommonMark\ElementRendererInterface;
20use League\CommonMark\HtmlElement;
21use League\CommonMark\Util\Xml;
22
23final class FencedCodeRenderer implements BlockRendererInterface
24{
25    /**
26     * @param FencedCode               $block
27     * @param ElementRendererInterface $htmlRenderer
28     * @param bool                     $inTightList
29     *
30     * @return HtmlElement
31     */
32    public function render(AbstractBlock $block, ElementRendererInterface $htmlRenderer, bool $inTightList = false)
33    {
34        if (!($block instanceof FencedCode)) {
35            throw new \InvalidArgumentException('Incompatible block type: ' . \get_class($block));
36        }
37
38        $attrs = $block->getData('attributes', []);
39
40        $infoWords = $block->getInfoWords();
41        if (\count($infoWords) !== 0 && \strlen($infoWords[0]) !== 0) {
42            $attrs['class'] = isset($attrs['class']) ? $attrs['class'] . ' ' : '';
43            $attrs['class'] .= 'language-' . $infoWords[0];
44        }
45
46        return new HtmlElement(
47            'pre',
48            [],
49            new HtmlElement('code', $attrs, Xml::escape($block->getStringContent()))
50        );
51    }
52}
53