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<?php |
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|
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/** |
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* Poor man's PHP 5.2 port of FilesystemIterator from PHP 5.3. |
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* |
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* WARNING: Do not use this one in PHP >=5.3, use native FilesystemIterator instead. |
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* |
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* @see http://php.net/manual/en/class.filesystemiterator.php |
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* @see https://github.com/php/php-src/blob/master/ext/spl/spl_directory.c |
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*/ |
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class Symfony_Filesystem_FilesystemIterator extends DirectoryIterator implements SeekableIterator |
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{ |
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const CURRENT_AS_PATHNAME = 32; |
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const CURRENT_AS_FILEINFO = 0; |
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const CURRENT_AS_SELF = 16; |
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const CURRENT_MODE_MASK = 240; |
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const KEY_AS_PATHNAME = 0; |
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const KEY_AS_FILENAME = 256; |
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const FOLLOW_SYMLINKS = 512; |
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const KEY_MODE_MASK = 3840; |
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const NEW_CURRENT_AND_KEY = 256; |
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const SKIP_DOTS = 4096; |
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const UNIX_PATHS = 8192; |
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|
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private $flags; |
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|
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/** |
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* @param string $path |
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* @param int $flags |
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*/ |
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public function __construct($path, $flags = null) |
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{ |
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if ($flags === null) { |
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$flags = self::KEY_AS_PATHNAME | self::CURRENT_AS_FILEINFO | self::SKIP_DOTS; |
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} |
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$this->flags = $flags; |
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parent::__construct($path); |
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} |
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|
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/** |
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* @return mixed |
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*/ |
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public function current() |
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{ |
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if ($this->flags & self::CURRENT_AS_PATHNAME) { |
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return $this->getPathname(); |
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} elseif ($this->flags & self::CURRENT_AS_SELF) { |
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return $this; |
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} else { |
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return $this->getFileInfo(); |
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} |
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} |
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|
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/** |
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* @return string |
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*/ |
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public function key() |
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{ |
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if ($this->flags & self::KEY_AS_FILENAME) { |
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return $this->getFilename(); |
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} |
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|
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return $this->getPathname(); |
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} |
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|
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/** |
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*/ |
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public function next() |
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{ |
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do { |
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parent::next(); |
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} while ($this->isDot()); |
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} |
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|
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/** |
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*/ |
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public function rewind() |
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{ |
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parent::rewind(); |
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while ($this->isDot()) { |
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$this->next(); |
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} |
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} |
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|
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/** |
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* @param int $flags |
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*/ |
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public function setFlags($flags) |
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{ |
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$this->flags = $flags; |
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} |
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|
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/** |
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* @return int |
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*/ |
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public function getFlags() |
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{ |
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return $this->flags; |
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} |
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|
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/** |
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* Overridden to not crash PHP 5.2, because DirectoryIterator::seek was added in 5.3. |
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* |
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* @link http://lxr.php.net/xref/PHP_5_3/ext/spl/spl_directory.c#807 |
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*/ |
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public function seek($position) |
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{ |
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if (is_callable(array('parent', 'seek'))) { |
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parent::seek($position); |
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|
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return; |
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} |
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|
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if ($this->key() > $position) { |
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$this->rewind(); |
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} |
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|
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while ($this->key() < $position) { |
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if (!$this->valid()) { |
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return; |
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} |
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$this->next(); |
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} |
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} |
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} |
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|
