%option outfile="count.c"
%option noyywrap
        /* so we don't need ``-lfl'' */
%{
        int num_lines = 0, num_chars = 0;
%}
%%
\n      ++num_lines; ++num_chars;
.       ++num_chars;
%%
int main() {
    yylex();
    printf( "# of lines = %d, # of chars = %d\n", num_lines, num_chars );
    return 0;
}