def replace_print(pos, opts, old_node=None):
"""
Replace old_node with a new statement.
Also hacks in the "end" functionality.
"""
new_node = new_print(*pos, **opts)
end = None if "end" not in opts else opts["end"].clone()
file = None if "file" not in opts else opts["file"].clone()
if old_node is None:
parent = Node(syms.simple_stmt, [Leaf(token.NEWLINE, "\n")])
i = 0
else:
parent = old_node.parent
i = old_node.remove()
parent.insert_child(i, new_node)
if end is not None and not (end.type == token.STRING and \
end.value in ("'\\n'", '"\\n"')):
add_end_part(end, file, parent, i + 1)
return new_node
