%{
#include <stdio.h>
#include <string.h>
%}
 
ID      [a-zA-Z_][a-zA-Z0-9_]*
 
%%
"struct"[ \t]+{ID}          { printf("Structure : %s\n", yytext); }
 
{ID}"(".*")"                { printf("Function : %s\n", yytext); }
 
{ID}"["[0-9]+"]"            { printf("Array : %s\n", yytext); }
 
{ID}                        { printf("Variable : %s\n", yytext); }
 
[ \t\n]+                    ;
 
.                           { printf("Invalid : %s\n", yytext); }
%%
 
int main() {
    printf("Enter input:\n");
    yylex();
    return 0;
}
 
int yywrap() {
    return 1;
}

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