%{
// from the flex manual, chapter 4, count bytes and lines
//
extern int fileno(FILE *);      /* to avoid gcc warning */
%}

        int num_lines = 0, num_chars = 0;

%%
\n      ++num_lines; ++num_chars;
.       ++num_chars;

%%

void (*jj_junk)(int,char *) = yyunput; /* avoid gcc warnings */
int (*jj2_junk)(void) = input;

int main( void)
{
  yylex();
  printf( "# of lines = %d, # of chars = %d\n", num_lines, num_chars );
  return 0;
}