el_wset
el_wset(el, EL_EDITOR, L"vi"); /* Default editor is vi */
el_wset(el, EL_SIGNAL, 1); /* Handle signals gracefully */
el_wset(el, EL_PROMPT_ESC, prompt, '\1'); /* Set the prompt function */
el_wset(el, EL_HIST, history_w, hist); /* FIXME - history_w? */
el_wset(el, EL_ADDFN, L"ed-complete", L"Complete argument", complete);
el_wset(el, EL_BIND, L"^I", L"ed-complete", NULL);
el_wset(el, EL_BIND, L"-a", L"k", L"ed-prev-line", NULL);
el_wset(el, EL_BIND, L"-a", L"j", L"ed-next-line", NULL);
ret = el_wset(el, op, va_arg(ap, char *));
ret = el_wset(el, op, ct_decode_string(va_arg(ap, char *),
ret = el_wset(el, op, va_arg(ap, int));
ret = el_wset(el, op, va_arg(ap, el_rfunc_t));
ret = el_wset(el, op, va_arg(ap, void *));
ret = el_wset(el, op, what, fp);
int el_wset(EditLine *, int, ...);
el_wset(el, EL_REFRESH);