%{  
#include <stdio.h> 
#define max 5  
int i = 0; 
%} 
Digit [0-9]  
Letter [a-zA-Z]  
Id {Letter}({Letter}|{Digit})*  
Comment "//".* 
%%  
[ \t\n] {}  
{Comment} {}  
{Id}   {  
if(yyleng > max){ 
printf("Identifier (%s) Can't Exceed Length %d\n",yytext,max); 
}else{  
printf("Identifier : %s\n",yytext); 
i++; 
}  
}  
{Digit} { printf("Number : %s\n",yytext); } 
"+"|"*"|"/"|"="|"("|")"|";"|"," { printf("Operator Or Punctuation : %s\n", yytext); 
} . 
{ printf("Unrecognized Character : %s\n", yytext); } 
%% 
int main(){ 
yylex(); 
printf("Valid Identifiers : %d\n",i);  
return 0; 
} 

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

UmFpc2UgaW4gcHVuZSBzdXBlcmdpbnRz

Raise in pune supergints