nl_tokens: ( data → string ) - generate inverse direction
pl_tokens: function ( data ) { var inverse = [ [ 'In' , 'Out' ] , [ 'X' , 'Y' ] , [ 'Down' , 'Up' ] , [ 'Left' , 'Right' ] ] var i = 0 var size = inverse . length var result for ( i ; i < size ; i ++ ) { var index = inverse [ i ] if ( index . indexOf ( data ) >= 0 ) { var colm = index . indexOf ( data ) result = colm === 0 ? <mask> [ 1 ] : index [ 0 ] } } return result }