6.Lex program to print words in a file that starts with a vowel

The question is self explanatory


Here is the code:

%{
%}
%%
[aeiouAEIOU].[a-zA-Z0-9.]+    printf("%s",yytext);
[a-zA-Z0-9]+    printf(" ");
%%
main()
{
    extern FILE *yyin;
    yyin=fopen("new","r");
    yylex();
}