OOAD
COMPILER DESIGN LAB
ALL PROGRAMS DOCUMENTS Program to construct a Recursive Descent Parser: #include<stdio.h> #include<string.h> int i=0,e=0,n=0,j,l; char str[50]; void E(); void F(); void E_(); void T(); void T_(); void ed(); int main() { printf("Recursive Descent Parser\n\n"); printf("\tE->TE'\n\tE'->+TE'/e\n\tT->FT'\n\tT'->*FT'/e\n\tF->(E)|id"); printf("\nEnter the input exp:"); scanf("%s",str); l=strlen(str); E(); if(e>0) printf("String is not accepted"); else { if(n==0 && e==0 && i==1) printf("String is not ACCEPTED"); else printf("String is ACCEPTED"); } } void E() { T(); E_(); } void T() { F(); T_(); } void T_() { if(str[i]=='*') { i++; F(); T_(); } } void E_() { if(str[i]=='+') { i++; T(); E_(); } else e++; } void F() { if(str[i]=='...
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