%{
#include <stdio.h>
#include <stdlib.h>
 
int line_number = 1, token_number = 0;
#define PRINT_TOKEN(type) printf("%d: TOKEN: %s, VALUE: %s\n", line_number, type, yytext); token_number++;
%}
 
%option noyywrap
 
%%
[ \t]+         ;
\n              { line_number++; }
"if"|"else"|"while"|"return"|"int"|"float"|"void" { PRINT_TOKEN("KEYWORD") }
[0-9]+          { PRINT_TOKEN("NUMBER") }
[a-zA-Z_][a-zA-Z0-9_]* { PRINT_TOKEN("IDENTIFIER") }
[+\-*/=;()]    { PRINT_TOKEN("OPERATOR") }
.                { PRINT_TOKEN("SPECIAL") }
 
%%
 
int main(int argc, char **argv) {
    printf("Enter LOC: ");
    yylex();
    printf("Token count: %d\n", token_number);
    printf("LOC count: %d\n", line_number - 1);
    return 0;
}
 

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