%{
#include<stdio.h>
%}
 
%%
auto|break|case|char|const|continue|default|do|double|else|enum|extern|float|for|goto|if|int|long|register|return|short|signed|sizeof|static|struct|switch|typedef|union|unsigned|void|volatile|while {printf("%s is a keyword\n",yytext);}
[+*/=<>^-] {printf("%s is a operator\n",yytext);}
[a-zA-Z_][a-zA-Z0-9_]* {printf("%s is an identifier\n",yytext);}
[0-9]+ {printf("%s is a number\n",yytext);}
 [a-zA-Z_0-9!@#$&]+ {printf("%s is an text\n",yytext);}
[,:;(){}?!|&`~] {printf("%s is a punctuation\n",yytext);}
 
[\t|\n];
%%
 
int main()                                                                                                                          
{
    printf("Enter string: ");
    yylex();
}
 
int yywrap()
{
    return 1;
}
 

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

aGkgdm9pZCBiYmk5

hi void bbi9