public function isWritable($path)
    {
        $node = $this->at($path);
        return null !== $node && (0x0080 & $node->perms);
    }
public function isWritable($path)
    {
        $node = $this->at($path);
        return null !== $node && (0x0080 & $node->perms);
    }
public function isWritable ( $ path ) { $ node = $ this -> at ( $ path ) ; return null !== $ node && ( 0x0080 & $ node -> perms ) ; }
Equivalent to PHP `is_writable` function.
Assumes that the user is the file owner.

@param  string  $path
@return boolean
Equivalent to PHP is_writable function . Assumes that the user is the file owner .