/* Note that the last three options are automatically supplied by argp_parse, unless you tell it not to with ARGP_NO_HELP.  */
static int find_char(char ch, char *beg, char *end)
/* Note that the last three options are automatically supplied by argp_parse, unless you tell it not to with ARGP_NO_HELP.  */
static int find_char(char ch, char *beg, char *end)
{
  while (beg < end)
    if (*beg == ch)
      return 1;
    else
      beg++;
  return 0;
}