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1
2class Node(object):
3    def __init__(self, tag, value, start_mark, end_mark):
4        self.tag = tag
5        self.value = value
6        self.start_mark = start_mark
7        self.end_mark = end_mark
8    def __repr__(self):
9        value = self.value
10        #if isinstance(value, list):
11        #    if len(value) == 0:
12        #        value = '<empty>'
13        #    elif len(value) == 1:
14        #        value = '<1 item>'
15        #    else:
16        #        value = '<%d items>' % len(value)
17        #else:
18        #    if len(value) > 75:
19        #        value = repr(value[:70]+u' ... ')
20        #    else:
21        #        value = repr(value)
22        value = repr(value)
23        return '%s(tag=%r, value=%s)' % (self.__class__.__name__, self.tag, value)
24
25class ScalarNode(Node):
26    id = 'scalar'
27    def __init__(self, tag, value,
28            start_mark=None, end_mark=None, style=None):
29        self.tag = tag
30        self.value = value
31        self.start_mark = start_mark
32        self.end_mark = end_mark
33        self.style = style
34
35class CollectionNode(Node):
36    def __init__(self, tag, value,
37            start_mark=None, end_mark=None, flow_style=None):
38        self.tag = tag
39        self.value = value
40        self.start_mark = start_mark
41        self.end_mark = end_mark
42        self.flow_style = flow_style
43
44class SequenceNode(CollectionNode):
45    id = 'sequence'
46
47class MappingNode(CollectionNode):
48    id = 'mapping'
49
50