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class Event:
def __init__(self, start_marker, end_marker):
self.start_marker = start_marker
self.end_marker = end_marker
def __repr__(self):
attributes = [key for key in self.__dict__
if not key.endswith('_marker')]
attributes.sort()
arguments = ', '.join(['%s=%r' % (key, getattr(self, key))
for key in attributes])
return '%s(%s)' % (self.__class__.__name__, arguments)
class NodeEvent(Event):
def __init__(self, anchor, start_marker, end_marker):
self.anchor = anchor
self.start_marker = start_marker
self.end_marker = end_marker
class AliasEvent(NodeEvent):
pass
class ScalarEvent(NodeEvent):
def __init__(self, anchor, tag, value, start_marker, end_marker):
self.anchor = anchor
self.tag = tag
self.value = value
self.start_marker = start_marker
self.end_marker = end_marker
class CollectionEvent(NodeEvent):
def __init__(self, anchor, tag, start_marker, end_marker):
self.anchor = anchor
self.tag = tag
self.start_marker = start_marker
self.end_marker = end_marker
class SequenceEvent(CollectionEvent):
pass
class MappingEvent(CollectionEvent):
pass
class CollectionEndEvent(Event):
pass
class StreamEndEvent(Event):
pass
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