%{
#include <stdio.h> #include <string.h>
%}
%option noyywrap
%%
"int"|"float"|"char"|"if"|"else"|"while"|"for"|"return" { printf("Keyword: %s\n", yytext); }
[0-9]+	{
printf("Constant: %s\n", yytext); }
[a-zA-Z_][a-zA-Z0-9_]*	{ printf("Identifier: %s\n", yytext); }
.	{
 
printf("Special Character: %s\n", yytext); }
%%
int main() {
printf (“Krischal Dhakal, Symbol no:28672\n”); 
printf("Enter your code: (Press ctrl + C to end input)\n"); yylex();
return 0;
}
 

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