nl_tokens: Generate unique identifier for a file
pl_tokens: function ( file ) { var custom = this . opts . generateUniqueIdentifier ; if ( typeof custom === 'function' ) { return custom ( file ) ; } // Some confusion in different versions of Firefox var relativePath = <mask> . relativePath || file . webkitRelativePath || file . fileName || file . name ; return file . size + '-' + relativePath . replace ( / [^0-9a-zA-Z_-] / img , '' ) ; }