Verzeichnisstruktur phpBB-3.2.0
- Veröffentlicht
- 06.01.2017
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Encoder.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\Configurator\JavaScript;
009 use RuntimeException;
010 use s9e\TextFormatter\Configurator\Items\Regexp;
011 use s9e\TextFormatter\Configurator\JavaScript\Code;
012 use s9e\TextFormatter\Configurator\JavaScript\Dictionary;
013 use s9e\TextFormatter\Configurator\JavaScript\Encoder;
014 class Encoder
015 {
016 public $objectEncoders;
017 public $typeEncoders;
018 public function __construct()
019 {
020 $ns = 's9e\\TextFormatter\\Configurator\\';
021 $this->objectEncoders = array(
022 $ns . 'Items\\Regexp' => array($this, 'encodeRegexp'),
023 $ns . 'JavaScript\\Code' => array($this, 'encodeCode'),
024 $ns . 'JavaScript\\ConfigValue' => array($this, 'encodeConfigValue'),
025 $ns . 'JavaScript\\Dictionary' => array($this, 'encodeDictionary')
026 );
027 $this->typeEncoders = array(
028 'array' => array($this, 'encodeArray'),
029 'boolean' => array($this, 'encodeBoolean'),
030 'double' => array($this, 'encodeScalar'),
031 'integer' => array($this, 'encodeScalar'),
032 'object' => array($this, 'encodeObject'),
033 'string' => array($this, 'encodeScalar')
034 );
035 }
036 public function encode($value)
037 {
038 $type = \gettype($value);
039 if (!isset($this->typeEncoders[$type]))
040 throw new RuntimeException('Cannot encode ' . $type . ' value');
041 return \call_user_func($this->typeEncoders[$type], $value);
042 }
043 protected function encodeArray(array $array)
044 {
045 return ($this->isIndexedArray($array)) ? $this->encodeIndexedArray($array) : $this->encodeAssociativeArray($array);
046 }
047 protected function encodeAssociativeArray(array $array, $preserveNames = \false)
048 {
049 \ksort($array);
050 $src = '{';
051 $sep = '';
052 foreach ($array as $k => $v)
053 {
054 $src .= $sep . $this->encodePropertyName("$k", $preserveNames) . ':' . $this->encode($v);
055 $sep = ',';
056 }
057 $src .= '}';
058 return $src;
059 }
060 protected function encodeBoolean($value)
061 {
062 return ($value) ? '!0' : '!1';
063 }
064 protected function encodeCode(Code $code)
065 {
066 return (string) $code;
067 }
068 protected function encodeConfigValue(ConfigValue $configValue)
069 {
070 return ($configValue->isDeduplicated()) ? $configValue->getVarName() : $this->encode($configValue->getValue());
071 }
072 protected function encodeDictionary(Dictionary $dict)
073 {
074 return $this->encodeAssociativeArray($dict->getArrayCopy(), \true);
075 }
076 protected function encodeIndexedArray(array $array)
077 {
078 return '[' . \implode(',', \array_map(array($this, 'encode'), $array)) . ']';
079 }
080 protected function encodeObject($object)
081 {
082 foreach ($this->objectEncoders as $className => $callback)
083 if ($object instanceof $className)
084 return \call_user_func($callback, $object);
085 throw new RuntimeException('Cannot encode instance of ' . \get_class($object));
086 }
087 protected function encodePropertyName($name, $preserveNames)
088 {
089 return ($preserveNames || !$this->isLegalProp($name)) ? \json_encode($name) : $name;
090 }
091 protected function encodeRegexp(Regexp $regexp)
092 {
093 return $regexp->getJS();
094 }
095 protected function encodeScalar($value)
096 {
097 return \json_encode($value);
098 }
099 protected function isIndexedArray(array $array)
100 {
101 if (empty($array))
102 return \true;
103 if (isset($array[0]) && \array_keys($array) === \range(0, \count($array) - 1))
104 return \true;
105 return \false;
106 }
107 protected function isLegalProp($name)
108 {
109 $reserved = array('abstract', 'boolean', 'break', 'byte', 'case', 'catch', 'char', 'class', 'const', 'continue', 'debugger', 'default', 'delete', 'do', 'double', 'else', 'enum', 'export', 'extends', 'false', 'final', 'finally', 'float', 'for', 'function', 'goto', 'if', 'implements', 'import', 'in', 'instanceof', 'int', 'interface', 'let', 'long', 'native', 'new', 'null', 'package', 'private', 'protected', 'public', 'return', 'short', 'static', 'super', 'switch', 'synchronized', 'this', 'throw', 'throws', 'transient', 'true', 'try', 'typeof', 'var', 'void', 'volatile', 'while', 'with');
110 if (\in_array($name, $reserved, \true))
111 return \false;
112 return (bool) \preg_match('#^(?![0-9])[$_\\pL][$_\\pL\\pNl]+$#Du', $name);
113 }
114 }