lookup swashes-knda chained backtrackclass definition begin pakannada 1 phakannada 1 vakannada 1 pevowelkannada 1 phevowelkannada 1 vevowelkannada 1 class definition end class definition begin uvowelsignkannada 1 uuvowelsignkannada 1 class definition end class-chain 1 1 1,u-swash-knda lookup end lookup u-swash-knda single uvowelsignkannada uvowelsignaltkannada uuvowelsignkannada uuvowelsignaltkannada lookup end