wwwrite
(void) wwwrite(selwin, "\b", 1);
(void) wwwrite(selwin, "\n", 1);
(void) wwwrite(selwin, "\033A", 2);
(void) wwwrite(selwin, "\033C", 2);
(void) wwwrite(w, buf, strlen(buf));
(void) wwwrite(w, a->v_str, strlen(a->v_str));
(void) wwwrite(w, " ", 1);
(void) wwwrite(w, "\r\n", 2);
int wwwrite(struct ww *, const char *, int);
(void) wwwrite(w, "\b \b", 3);
int n = wwwrite(w, w->ww_obp, w->ww_obq - w->ww_obp);
int n = wwwrite(w, w->ww_obp,
(void) wwwrite(w, buf, vsnprintf(buf, sizeof(buf), fmt, ap));
(void) wwwrite(w, &c, sizeof c);
(void) wwwrite(w, s, p - s - 1);