Verzeichnisstruktur phpBB-3.3.15
- Veröffentlicht
- 28.08.2024
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Configurator.php
001 <?php
002
003 /**
004 * @package s9e\TextFormatter
005 * @copyright Copyright (c) 2010-2022 The s9e authors
006 * @license http://www.opensource.org/licenses/mit-license.php The MIT License
007 */
008 namespace s9e\TextFormatter\Plugins\Keywords;
009
010 use s9e\TextFormatter\Configurator\Collections\NormalizedList;
011 use s9e\TextFormatter\Configurator\Helpers\RegexpBuilder;
012 use s9e\TextFormatter\Configurator\Items\Regexp;
013 use s9e\TextFormatter\Configurator\Traits\CollectionProxy;
014 use s9e\TextFormatter\Plugins\ConfiguratorBase;
015
016 /**
017 * @method mixed add(string $key, mixed $value) Add an item to this collection
018 * @method array asConfig()
019 * @method void clear() Empty this collection
020 * @method bool contains(mixed $value) Test whether a given value is present in this collection
021 * @method integer count()
022 * @method mixed current()
023 * @method void delete(string $key) Delete an item from this collection
024 * @method bool exists(string $key) Test whether an item of given key exists
025 * @method mixed get(string $key) Return a value from this collection
026 * @method mixed indexOf(mixed $value) Find the index of a given value
027 * @method integer|string key()
028 * @method mixed next()
029 * @method string normalizeKey(string $key) Normalize an item's key
030 * @method mixed normalizeValue(mixed $value) Normalize a value for storage
031 * @method bool offsetExists(string|integer $offset)
032 * @method mixed offsetGet(string|integer $offset)
033 * @method void offsetSet(string|integer $offset, mixed $value)
034 * @method void offsetUnset(string|integer $offset)
035 * @method string onDuplicate(string|null $action) Query and set the action to take when add() is called with a key that already exists
036 * @method void rewind()
037 * @method mixed set(string $key, mixed $value) Set and overwrite a value in this collection
038 * @method bool valid()
039 */
040 class Configurator extends ConfiguratorBase
041 {
042 use CollectionProxy;
043
044 /**
045 * @var string Name of the attribute used by this plugin
046 */
047 protected $attrName = 'value';
048
049 /**
050 * @var bool Whether keywords are case-sensitive
051 */
052 public $caseSensitive = true;
053
054 /**
055 * @var \s9e\TextFormatter\Configurator\Collections\NormalizedCollection List of [keyword => value]
056 */
057 protected $collection;
058
059 /**
060 * @var boolean Whether to capture only the first occurence of each keyword
061 */
062 public $onlyFirst = false;
063
064 /**
065 * @var string Name of the tag used by this plugin
066 */
067 protected $tagName = 'KEYWORD';
068
069 /**
070 * {@inheritdoc}
071 */
072 protected function setUp()
073 {
074 $this->collection = new NormalizedList;
075
076 $this->configurator->tags->add($this->tagName)->attributes->add($this->attrName);
077 }
078
079 /**
080 * {@inheritdoc}
081 */
082 public function asConfig()
083 {
084 if (!count($this->collection))
085 {
086 return;
087 }
088
089 $config = [
090 'attrName' => $this->attrName,
091 'tagName' => $this->tagName
092 ];
093
094 if (!empty($this->onlyFirst))
095 {
096 $config['onlyFirst'] = $this->onlyFirst;
097 }
098
099 // Sort keywords in order to keep keywords that start with the same characters together. We
100 // also remove duplicates that would otherwise skew the length computation done below
101 $keywords = array_unique(iterator_to_array($this->collection));
102 sort($keywords);
103
104 // Group keywords by chunks of ~30KB to remain below PCRE's limit
105 $groups = [];
106 $groupKey = 0;
107 $groupLen = 0;
108 foreach ($keywords as $keyword)
109 {
110 // NOTE: the value 4 is a guesstimate for the cost of each alternation
111 $keywordLen = 4 + strlen($keyword);
112 $groupLen += $keywordLen;
113
114 if ($groupLen > 30000)
115 {
116 $groupLen = $keywordLen;
117 ++$groupKey;
118 }
119
120 $groups[$groupKey][] = $keyword;
121 }
122
123 foreach ($groups as $keywords)
124 {
125 $regexp = RegexpBuilder::fromList(
126 $keywords,
127 ['caseInsensitive' => !$this->caseSensitive]
128 );
129
130 $regexp = '/\\b' . $regexp . '\\b/S';
131
132 if (!$this->caseSensitive)
133 {
134 $regexp .= 'i';
135 }
136
137 if (preg_match('/[^[:ascii:]]/', $regexp))
138 {
139 $regexp .= 'u';
140 }
141
142 $config['regexps'][] = new Regexp($regexp, true);
143 }
144
145 return $config;
146 }
147 }