Verzeichnisstruktur phpBB-3.2.0
- Veröffentlicht
- 06.01.2017
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Parser.php
001 <?php
002
003 /*
004 * @package s9e\TextFormatter
005 * @copyright Copyright (c) 2010-2016 The s9e Authors
006 * @license http://www.opensource.org/licenses/mit-license.php The MIT License
007 */
008 namespace s9e\TextFormatter\Plugins\BBCodes;
009 use RuntimeException;
010 use s9e\TextFormatter\Parser\Tag;
011 use s9e\TextFormatter\Plugins\ParserBase;
012 class Parser extends ParserBase
013 {
014 protected $attributes;
015 protected $bbcodeConfig;
016 protected $bbcodeName;
017 protected $bbcodeSuffix;
018 protected $pos;
019 protected $startPos;
020 protected $text;
021 protected $textLen;
022 protected $uppercaseText;
023 public function parse($text, array $matches)
024 {
025 $this->text = $text;
026 $this->textLen = \strlen($text);
027 $this->uppercaseText = '';
028 foreach ($matches as $m)
029 {
030 $this->bbcodeName = \strtoupper($m[1][0]);
031 if (!isset($this->config['bbcodes'][$this->bbcodeName]))
032 continue;
033 $this->bbcodeConfig = $this->config['bbcodes'][$this->bbcodeName];
034 $this->startPos = $m[0][1];
035 $this->pos = $this->startPos + \strlen($m[0][0]);
036 try
037 {
038 $this->parseBBCode();
039 }
040 catch (RuntimeException $e)
041 {
042 }
043 }
044 }
045 protected function addBBCodeEndTag()
046 {
047 return $this->parser->addEndTag($this->getTagName(), $this->startPos, $this->pos - $this->startPos);
048 }
049 protected function addBBCodeSelfClosingTag()
050 {
051 $tag = $this->parser->addSelfClosingTag($this->getTagName(), $this->startPos, $this->pos - $this->startPos);
052 $tag->setAttributes($this->attributes);
053 return $tag;
054 }
055 protected function addBBCodeStartTag()
056 {
057 $tag = $this->parser->addStartTag($this->getTagName(), $this->startPos, $this->pos - $this->startPos);
058 $tag->setAttributes($this->attributes);
059 return $tag;
060 }
061 protected function captureEndTag()
062 {
063 if (empty($this->uppercaseText))
064 $this->uppercaseText = \strtoupper($this->text);
065 $match = '[/' . $this->bbcodeName . $this->bbcodeSuffix . ']';
066 $endTagPos = \strpos($this->uppercaseText, $match, $this->pos);
067 if ($endTagPos === \false)
068 return;
069 return $this->parser->addEndTag($this->getTagName(), $endTagPos, \strlen($match));
070 }
071 protected function getTagName()
072 {
073 return (isset($this->bbcodeConfig['tagName']))
074 ? $this->bbcodeConfig['tagName']
075 : $this->bbcodeName;
076 }
077 protected function parseAttributes()
078 {
079 $firstPos = $this->pos;
080 $this->attributes = array();
081 while ($this->pos < $this->textLen)
082 {
083 $c = $this->text[$this->pos];
084 if (\strpos(" \n\t", $c) !== \false)
085 {
086 ++$this->pos;
087 continue;
088 }
089 if (\strpos('/]', $c) !== \false)
090 return;
091 $spn = \strspn($this->text, 'abcdefghijklmnopqrstuvwxyz_0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-', $this->pos);
092 if ($spn)
093 {
094 $attrName = \strtolower(\substr($this->text, $this->pos, $spn));
095 $this->pos += $spn;
096 if ($this->pos >= $this->textLen)
097 throw new RuntimeException;
098 if ($this->text[$this->pos] !== '=')
099 continue;
100 }
101 elseif ($c === '=' && $this->pos === $firstPos)
102 $attrName = (isset($this->bbcodeConfig['defaultAttribute']))
103 ? $this->bbcodeConfig['defaultAttribute']
104 : \strtolower($this->bbcodeName);
105 else
106 throw new RuntimeException;
107 if (++$this->pos >= $this->textLen)
108 throw new RuntimeException;
109 $this->attributes[$attrName] = $this->parseAttributeValue();
110 }
111 }
112 protected function parseAttributeValue()
113 {
114 if ($this->text[$this->pos] === '"' || $this->text[$this->pos] === "'")
115 return $this->parseQuotedAttributeValue();
116 if (!\preg_match('#[^\\]\\n]*?(?=\\s*(?:\\s/)?\\]|\\s+[-\\w]+=)#', $this->text, $m, \null, $this->pos))
117 throw new RuntimeException;
118 $attrValue = $m[0];
119 $this->pos += \strlen($attrValue);
120 return $attrValue;
121 }
122 protected function parseBBCode()
123 {
124 $this->parseBBCodeSuffix();
125 if ($this->text[$this->startPos + 1] === '/')
126 {
127 if (\substr($this->text, $this->pos, 1) === ']' && $this->bbcodeSuffix === '')
128 {
129 ++$this->pos;
130 $this->addBBCodeEndTag();
131 }
132 return;
133 }
134 $this->parseAttributes();
135 if (isset($this->bbcodeConfig['predefinedAttributes']))
136 $this->attributes += $this->bbcodeConfig['predefinedAttributes'];
137 if (\substr($this->text, $this->pos, 1) === ']')
138 ++$this->pos;
139 else
140 {
141 if (\substr($this->text, $this->pos, 2) === '/]')
142 {
143 $this->pos += 2;
144 $this->addBBCodeSelfClosingTag();
145 }
146 return;
147 }
148 $contentAttributes = array();
149 if (isset($this->bbcodeConfig['contentAttributes']))
150 foreach ($this->bbcodeConfig['contentAttributes'] as $attrName)
151 if (!isset($this->attributes[$attrName]))
152 $contentAttributes[] = $attrName;
153 $requireEndTag = ($this->bbcodeSuffix || !empty($this->bbcodeConfig['forceLookahead']));
154 $endTag = ($requireEndTag || !empty($contentAttributes)) ? $this->captureEndTag() : \null;
155 if (isset($endTag))
156 foreach ($contentAttributes as $attrName)
157 $this->attributes[$attrName] = \substr($this->text, $this->pos, $endTag->getPos() - $this->pos);
158 elseif ($requireEndTag)
159 return;
160 $tag = $this->addBBCodeStartTag();
161 if (isset($endTag))
162 $tag->pairWith($endTag);
163 }
164 protected function parseBBCodeSuffix()
165 {
166 $this->bbcodeSuffix = '';
167 if ($this->text[$this->pos] === ':')
168 {
169 $spn = 1 + \strspn($this->text, '0123456789', 1 + $this->pos);
170 $this->bbcodeSuffix = \substr($this->text, $this->pos, $spn);
171 $this->pos += $spn;
172 }
173 }
174 protected function parseQuotedAttributeValue()
175 {
176 $quote = $this->text[$this->pos];
177 $valuePos = $this->pos + 1;
178 while (1)
179 {
180 $this->pos = \strpos($this->text, $quote, $this->pos + 1);
181 if ($this->pos === \false)
182 throw new RuntimeException;
183 $n = 0;
184 do
185 {
186 ++$n;
187 }
188 while ($this->text[$this->pos - $n] === '\\');
189 if ($n % 2)
190 break;
191 }
192 $attrValue = \preg_replace(
193 '#\\\\([\\\\\'"])#',
194 '$1',
195 \substr($this->text, $valuePos, $this->pos - $valuePos)
196 );
197 ++$this->pos;
198 return $attrValue;
199 }
200 }