YACC stands for Yet Another Compiler Compiler which is basically the utility available from UNIX. YACC is an automatic tool for generating the parser program. This kind of parsing is applicable to only small class of grammars.Īmbiguity can be eliminated by means of dangling-else grammar which is show below: The operator like minus has two different precedence(unary and binary).Hence it is hard to handle tokens like minus sign.Ģ. This typeof parsing is simple to implement.ġ.