float or not float

%{
/*float or not float*/
%}
%%
[0-9]          {printf("%s is a digit.\n", yytext);}
-?[0-9]+       {printf("%s is an integer number.\n", yytext);}
[0-9]+\.[0-9]+ {printf("%s is a float number.\n", yytext);}
[a-zA-Z]       {printf("%s is an alphabet.\n", yytext);}
[a-zA-Z]+      {printf("%s is a word.\n", yytext);}
.|\n {ECHO;}
%%
main(){
  yylex();
}