What is use of first and follow in compiler design?
What is use of first and follow in compiler design? Hence the parser applies this rule. So FOLLOW can make a Non-terminal vanish out if needed to generate the string from the parse tree. The conclusions is, we need to find FIRST and FOLLOW sets for a given grammar so that the parser can properly apply the needed rule at the correct position. What is first set in compiler design? FIRST(X) for a grammar symbol X is the set of terminals that begin the strings derivable from X. Rules to compute FIRST set: If x is a terminal, then FIRST(x)...