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# coding: utf-8
# Abstract classes.
def CommentCheck():
pass
class Event(object):
def __init__(self, start_mark=None, end_mark=None, comment=CommentCheck):
self.start_mark = start_mark
self.end_mark = end_mark
# assert comment is not CommentCheck
if comment is CommentCheck:
comment = None
self.comment = comment
def __repr__(self):
attributes = [key for key in ['anchor', 'tag', 'implicit', 'value',
'flow_style', 'style']
if hasattr(self, key)]
arguments = ', '.join(['%s=%r' % (key, getattr(self, key))
for key in attributes])
if self.comment not in [None, CommentCheck]:
arguments += ', comment={!r}'.format(self.comment)
return '%s(%s)' % (self.__class__.__name__, arguments)
class NodeEvent(Event):
def __init__(self, anchor, start_mark=None, end_mark=None, comment=None):
Event.__init__(self, start_mark, end_mark, comment)
self.anchor = anchor
class CollectionStartEvent(NodeEvent):
def __init__(self, anchor, tag, implicit, start_mark=None, end_mark=None,
flow_style=None, comment=None):
Event.__init__(self, start_mark, end_mark, comment)
self.anchor = anchor
self.tag = tag
self.implicit = implicit
self.flow_style = flow_style
class CollectionEndEvent(Event):
pass
# Implementations.
class StreamStartEvent(Event):
def __init__(self, start_mark=None, end_mark=None, encoding=None,
comment=None):
Event.__init__(self, start_mark, end_mark, comment)
self.encoding = encoding
class StreamEndEvent(Event):
pass
class DocumentStartEvent(Event):
def __init__(self, start_mark=None, end_mark=None,
explicit=None, version=None, tags=None, comment=None):
Event.__init__(self, start_mark, end_mark, comment)
self.explicit = explicit
self.version = version
self.tags = tags
class DocumentEndEvent(Event):
def __init__(self, start_mark=None, end_mark=None,
explicit=None, comment=None):
Event.__init__(self, start_mark, end_mark, comment)
self.explicit = explicit
class AliasEvent(NodeEvent):
pass
class ScalarEvent(NodeEvent):
def __init__(self, anchor, tag, implicit, value,
start_mark=None, end_mark=None, style=None, comment=None):
NodeEvent.__init__(self, anchor, start_mark, end_mark, comment)
self.tag = tag
self.implicit = implicit
self.value = value
self.style = style
class SequenceStartEvent(CollectionStartEvent):
pass
class SequenceEndEvent(CollectionEndEvent):
pass
class MappingStartEvent(CollectionStartEvent):
pass
class MappingEndEvent(CollectionEndEvent):
pass
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