Write a program to recognize tokens for C++ program. Use C++ program as your input?How to answer?
TOKEN getRelop() // TOKEN has two components
TOKEN retToken = new(RELOP); // First component set here
while (true)
switch(state)
case 0: c = nextChar();
if (c == '<') state = 1;
else if (c == '=') state = 5;
else if (c == '>') state = 6;
else fail();
break;
case 1: ...
...
case 8: retract(); // an accepting state with a star
retToken.attribute = GT; // second component
return(retToken);
