%%

%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());}