Verzeichnisstruktur phpBB-3.3.15
- Veröffentlicht
- 28.08.2024
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Parser.php
01 <?php
02
03 /**
04 * @package s9e\TextFormatter
05 * @copyright Copyright (c) 2010-2022 The s9e authors
06 * @license http://www.opensource.org/licenses/mit-license.php The MIT License
07 */
08 namespace s9e\TextFormatter\Plugins\HTMLElements;
09
10 use s9e\TextFormatter\Parser\Tag;
11 use s9e\TextFormatter\Plugins\ParserBase;
12
13 class Parser extends ParserBase
14 {
15 /**
16 * {@inheritdoc}
17 */
18 public function parse($text, array $matches)
19 {
20 foreach ($matches as $m)
21 {
22 // Test whether this is an end tag
23 $isEnd = (bool) ($text[$m[0][1] + 1] === '/');
24
25 $pos = $m[0][1];
26 $len = strlen($m[0][0]);
27 $elName = strtolower($m[2 - $isEnd][0]);
28
29 // Use the element's alias if applicable, or the name of the element (with the
30 // configured prefix) otherwise
31 $tagName = (isset($this->config['aliases'][$elName]['']))
32 ? $this->config['aliases'][$elName]['']
33 : $this->config['prefix'] . ':' . $elName;
34
35 if ($isEnd)
36 {
37 $this->parser->addEndTag($tagName, $pos, $len);
38 continue;
39 }
40
41 // Test whether it's a self-closing tag or a start tag.
42 //
43 // A self-closing tag will become one start tag consuming all of the text followed by a
44 // 0-width end tag. Alternatively, it could be replaced by a pair of 0-width tags plus
45 // an ignore tag to prevent the text in between from being output
46 $tag = (preg_match('/(<\\S+|[\'"\\s])\\/>$/', $m[0][0]))
47 ? $this->parser->addTagPair($tagName, $pos, $len, $pos + $len, 0)
48 : $this->parser->addStartTag($tagName, $pos, $len);
49
50 $this->captureAttributes($tag, $elName, $m[3][0]);
51 }
52 }
53
54 /**
55 * Capture all attributes in given string
56 *
57 * @param Tag $tag Target tag
58 * @param string $elName Name of the HTML element
59 * @param string $str String containing the attribute declarations
60 * @return void
61 */
62 protected function captureAttributes(Tag $tag, $elName, $str)
63 {
64 $regexp = '/([a-z][-a-z0-9]*)(?>\\s*=\\s*("[^"]*"|\'[^\']*\'|[^\\s"\'=<>`]+))?/i';
65 preg_match_all($regexp, $str, $matches, PREG_SET_ORDER);
66
67 foreach ($matches as $m)
68 {
69 /**
70 * If there's no value, it's a boolean attribute and we generate a value equal
71 * to the attribute's name, lowercased
72 *
73 * @link http://www.w3.org/html/wg/drafts/html/master/single-page.html#boolean-attributes
74 */
75 $attrName = strtolower($m[1]);
76 $attrValue = $m[2] ?? $attrName;
77
78 // Use the attribute's alias if applicable
79 if (isset($this->config['aliases'][$elName][$attrName]))
80 {
81 $attrName = $this->config['aliases'][$elName][$attrName];
82 }
83
84 // Remove quotes around the value
85 if ($attrValue[0] === '"' || $attrValue[0] === "'")
86 {
87 $attrValue = substr($attrValue, 1, -1);
88 }
89
90 $tag->setAttribute($attrName, html_entity_decode($attrValue, ENT_QUOTES, 'UTF-8'));
91 }
92 }
93 }