def replace(self, data, branch_in=False):
length = sum(editlength(obj) for obj in data)
self.buffer.do(self.marker, replace(data))
if self.marker.dot:
self.marker = dotmarker(self.marker.hole, visited = not branch_in)
else:
cursor = self.marker.start + length * (not branch_in)
self.marker = starmarker(self.marker.hole, cursor, cursor)
if branch_in:
self.walk()
def remove(self):
if self.marker.dot:
self.buffer.do(self.marker, replace([None]))
else:
self.replace([])