%{
// based on the flex manual, chapter 4, count bytes and lines
// using yylineno to count the lines
//
extern int fileno(FILE *);      /* to avoid gcc warning */
int num_chars = 0;
%}

%option yylineno

%%
.|\n    ++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", yylineno-1, num_chars );
  return 0;
}