parse.y:4438
static NODE*
newline_node(node)
    NODE *node;
{
    NODE *nl = 0;
    if (node) {
	if (nd_type(node) == NODE_NEWLINE) return node;
        nl = NEW_NEWLINE(node);
        fixpos(nl, node);
        nl->nd_nth = nd_line(node);
    }
    return nl;
}
