if (mutt_get_charset (buff) == NULL)
else if (mutt_get_charset (buff) == NULL)
static int change_attachment_charset (BODY *b){  char buff[SHORT_STRING];  if (b->type != TYPETEXT)  {    mutt_error _("Can't change character set for non-text attachments!");    return 0;  }  mutt_get_send_charset (buff, sizeof(buff), b, 0);    if (mutt_get_field (_("Enter character set: "), buff, sizeof(buff), 0) == -1)    return 0;      if (mutt_is_utf8(buff))  {    mutt_error (_("UTF-8 encoding attachments has not yet been implemented."));    return 0;  }    if (mutt_get_charset (buff) == NULL)  {    mutt_error (_("Character set %s is unknown."), buff);    return 0;  }    mutt_set_body_charset (b, buff);  return REDRAW_CURRENT;}