nl_tokens: for < = 2 . 0a or = 2 . 0a or > = 2 . 0a
pl_tokens: function ( result , exp ) { switch ( exp . op ) { case '<' : case '<=' : // check over write upper var upper = result . upper ; if ( ! upper || exp . value <= upper . value ) { result . upper = exp ; if ( ! ! upper ) { exp . eq = upper . eq && exp . eq ; } } break ; case '>' : case '>=' : // check over write lower var lower = result . lower ; if ( ! lower || exp . value >= lower . value ) { result . lower = exp ; if ( ! ! lower ) { exp . eq = lower . eq && exp . eq ; } } <mask> ; case '=' : case '==' : // check over write lower var midle = result . midle ; if ( ! midle ) { result . midle = exp ; } else if ( midle . value !== exp . value ) { result . dirty = ! 0 ; delete result . midle ; } break ; } delete exp . op ; }