void lnend()
{
if (curbp->b_point == pos(curbp, curbp->b_ebuf)) return; /* do nothing if EOF */
curbp->b_point = dndn(curbp, curbp->b_point);
point_t p = curbp->b_point;
left();
curbp->b_point = (*ptr(curbp, curbp->b_point) == '\n') ? curbp->b_point : p;
}
void lnend()
{
curbp->b_point = dndn(curbp, curbp->b_point);
left();
}
void down()
{
curbp->b_point = lncolumn(curbp, dndn(curbp, curbp->b_point),curbp->b_col);
}