Simulation of finite state automata to recognize the tokens of control statement?

Answer 1

#include<stdio.h>

#include<conio.h>

#include<string.h>

void main()

{

char a[8];int s,i,flag=0,loc1=0,loc2=0,j;

clrscr();

printf("Enter any string\n");

gets(a);

for(i=0;i<8;i++)

{

int ch=a[i];

if(ch!=32)

{ loc2=i;

flag++;

}

if(ch==32)

{ s=flag; flag=0;

switch(s)

{

case 2:

if(a[loc1]=='i' && a[loc2]=='f')

printf("STRING HAS if AS A KEYWORD");

break;

case 3:

if(a[loc1]=='f' && a[loc1+1]=='o' && a[loc2]=='r')

printf("STRING HAS for AS A KEYWORD");

break;

default:

printf("not our case");

}

}

}

getch();

}

Answer 2

#include

#include

#include

void main()

{

char a[8];

int s, i, flag = 0, loc1 = 0, loc2 = 0,j;

printf("enter any string\n");

gets(a);

for(i=0;i