%%
%standalone
%class Calc
nl = \n|\r|\r\n
string = [Aa|Ee|Ii|Oo|Uu][A-Za-z]*
lang = [A-Za-z]+
langg = [0-9]+
%%
{string} {System.out.println("Starting with vowels: " +yytext());}
{lang} {System.out.println("Invalid: " +yytext());}
{langg} {System.out.println("Invalid: " +yytext());}
{nl}|" "|\t {;}
. {System.out.println("Error: " + yytext());}
|