charcost
tcinsl = charcost(change_scroll_region) * 2 +
charcost(scroll_reverse);
tcinsl = charcost(parm_insert_line);
tcinsl = charcost(insert_line);
tcdell = charcost(change_scroll_region) * 2 +
charcost(scroll_fwd);
tcdell = charcost(parm_delete_line);
tcdell = charcost(delete_line);
static int charcost(const char *);
tceeol = charcost(clr_eol);