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<?php |
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class HTMLPurifier_ConfigSchema_InterchangeBuilder |
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{ |
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/** |
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* Used for processing DEFAULT, nothing else. |
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* @type HTMLPurifier_VarParser |
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*/ |
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protected $varParser; |
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/** |
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* @param HTMLPurifier_VarParser $varParser |
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*/ |
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public function __construct($varParser = null) |
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{ |
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$this->varParser = $varParser ? $varParser : new HTMLPurifier_VarParser_Native(); |
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} |
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/** |
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* @param string $dir |
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* @return HTMLPurifier_ConfigSchema_Interchange |
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*/ |
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public static function buildFromDirectory($dir = null) |
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{ |
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$builder = new HTMLPurifier_ConfigSchema_InterchangeBuilder(); |
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$interchange = new HTMLPurifier_ConfigSchema_Interchange(); |
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return $builder->buildDir($interchange, $dir); |
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} |
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/** |
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* @param HTMLPurifier_ConfigSchema_Interchange $interchange |
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* @param string $dir |
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* @return HTMLPurifier_ConfigSchema_Interchange |
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*/ |
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public function buildDir($interchange, $dir = null) |
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{ |
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if (!$dir) { |
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$dir = HTMLPURIFIER_PREFIX . '/HTMLPurifier/ConfigSchema/schema'; |
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} |
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if (file_exists($dir . '/info.ini')) { |
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$info = parse_ini_file($dir . '/info.ini'); |
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$interchange->name = $info['name']; |
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} |
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$files = array(); |
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$dh = opendir($dir); |
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while (false !== ($file = readdir($dh))) { |
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if (!$file || $file[0] == '.' || strrchr($file, '.') !== '.txt') { |
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continue; |
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} |
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$files[] = $file; |
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} |
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closedir($dh); |
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sort($files); |
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foreach ($files as $file) { |
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$this->buildFile($interchange, $dir . '/' . $file); |
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} |
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return $interchange; |
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} |
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/** |
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* @param HTMLPurifier_ConfigSchema_Interchange $interchange |
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* @param string $file |
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*/ |
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public function buildFile($interchange, $file) |
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{ |
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$parser = new HTMLPurifier_StringHashParser(); |
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$this->build( |
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$interchange, |
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new HTMLPurifier_StringHash($parser->parseFile($file)) |
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); |
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} |
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/** |
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* Builds an interchange object based on a hash. |
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* @param HTMLPurifier_ConfigSchema_Interchange $interchange HTMLPurifier_ConfigSchema_Interchange object to build |
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* @param HTMLPurifier_StringHash $hash source data |
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* @throws HTMLPurifier_ConfigSchema_Exception |
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*/ |
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public function build($interchange, $hash) |
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{ |
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if (!$hash instanceof HTMLPurifier_StringHash) { |
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$hash = new HTMLPurifier_StringHash($hash); |
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} |
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if (!isset($hash['ID'])) { |
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throw new HTMLPurifier_ConfigSchema_Exception('Hash does not have any ID'); |
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} |
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if (strpos($hash['ID'], '.') === false) { |
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if (count($hash) == 2 && isset($hash['DESCRIPTION'])) { |
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$hash->offsetGet('DESCRIPTION'); // prevent complaining |
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} else { |
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throw new HTMLPurifier_ConfigSchema_Exception('All directives must have a namespace'); |
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} |
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} else { |
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$this->buildDirective($interchange, $hash); |
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} |
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$this->_findUnused($hash); |
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} |
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/** |
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* @param HTMLPurifier_ConfigSchema_Interchange $interchange |
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* @param HTMLPurifier_StringHash $hash |
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* @throws HTMLPurifier_ConfigSchema_Exception |
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*/ |
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public function buildDirective($interchange, $hash) |
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{ |
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$directive = new HTMLPurifier_ConfigSchema_Interchange_Directive(); |
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// These are required elements: |
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$directive->id = $this->id($hash->offsetGet('ID')); |
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$id = $directive->id->toString(); // convenience |
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if (isset($hash['TYPE'])) { |
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$type = explode('/', $hash->offsetGet('TYPE')); |
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if (isset($type[1])) { |
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$directive->typeAllowsNull = true; |
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} |
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$directive->type = $type[0]; |
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} else { |
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throw new HTMLPurifier_ConfigSchema_Exception("TYPE in directive hash '$id' not defined"); |
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} |
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if (isset($hash['DEFAULT'])) { |
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try { |
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$directive->default = $this->varParser->parse( |
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$hash->offsetGet('DEFAULT'), |
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$directive->type, |
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$directive->typeAllowsNull |
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); |
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} catch (HTMLPurifier_VarParserException $e) { |
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throw new HTMLPurifier_ConfigSchema_Exception($e->getMessage() . " in DEFAULT in directive hash '$id'"); |
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} |
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} |
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if (isset($hash['DESCRIPTION'])) { |
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$directive->description = $hash->offsetGet('DESCRIPTION'); |
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} |
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if (isset($hash['ALLOWED'])) { |
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$directive->allowed = $this->lookup($this->evalArray($hash->offsetGet('ALLOWED'))); |
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} |
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if (isset($hash['VALUE-ALIASES'])) { |
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$directive->valueAliases = $this->evalArray($hash->offsetGet('VALUE-ALIASES')); |
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} |
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if (isset($hash['ALIASES'])) { |
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$raw_aliases = trim($hash->offsetGet('ALIASES')); |
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$aliases = preg_split('/\s*,\s*/', $raw_aliases); |
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foreach ($aliases as $alias) { |
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$directive->aliases[] = $this->id($alias); |
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} |
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} |
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if (isset($hash['VERSION'])) { |
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$directive->version = $hash->offsetGet('VERSION'); |
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} |
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if (isset($hash['DEPRECATED-USE'])) { |
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$directive->deprecatedUse = $this->id($hash->offsetGet('DEPRECATED-USE')); |
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} |
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if (isset($hash['DEPRECATED-VERSION'])) { |
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$directive->deprecatedVersion = $hash->offsetGet('DEPRECATED-VERSION'); |
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} |
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if (isset($hash['EXTERNAL'])) { |
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$directive->external = preg_split('/\s*,\s*/', trim($hash->offsetGet('EXTERNAL'))); |
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} |
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$interchange->addDirective($directive); |
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} |
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/** |
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* Evaluates an array PHP code string without array() wrapper |
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* @param string $contents |
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*/ |
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protected function evalArray($contents) |
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{ |
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return eval('return array(' . $contents . ');'); |
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} |
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/** |
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* Converts an array list into a lookup array. |
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* @param array $array |
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* @return array |
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*/ |
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protected function lookup($array) |
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{ |
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$ret = array(); |
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foreach ($array as $val) { |
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$ret[$val] = true; |
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} |
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return $ret; |
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} |
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/** |
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* Convenience function that creates an HTMLPurifier_ConfigSchema_Interchange_Id |
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* object based on a string Id. |
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* @param string $id |
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* @return HTMLPurifier_ConfigSchema_Interchange_Id |
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*/ |
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protected function id($id) |
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{ |
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return HTMLPurifier_ConfigSchema_Interchange_Id::make($id); |
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} |
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/** |
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* Triggers errors for any unused keys passed in the hash; such keys |
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* may indicate typos, missing values, etc. |
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* @param HTMLPurifier_StringHash $hash Hash to check. |
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*/ |
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protected function _findUnused($hash) |
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{ |
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$accessed = $hash->getAccessed(); |
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foreach ($hash as $k => $v) { |
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if (!isset($accessed[$k])) { |
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trigger_error("String hash key '$k' not used by builder", E_USER_NOTICE); |
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} |
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} |
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} |
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} |
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// vim: et sw=4 sts=4 |
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You can fix this by adding a namespace to your class:
When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries.