source: pyyaml/trunk/lib/yaml/events.py @ 137

Revision 137, 2.4 KB checked in by xi, 8 years ago (diff)

Refactor resolver.

Line 
1
2# Abstract classes.
3
4class Event:
5    def __init__(self, start_mark=None, end_mark=None):
6        self.start_mark = start_mark
7        self.end_mark = end_mark
8    def __repr__(self):
9        attributes = [key for key in ['anchor', 'tag', 'implicit', 'value']
10                if hasattr(self, key)]
11        arguments = ', '.join(['%s=%r' % (key, getattr(self, key))
12                for key in attributes])
13        return '%s(%s)' % (self.__class__.__name__, arguments)
14
15class NodeEvent(Event):
16    def __init__(self, anchor, start_mark=None, end_mark=None):
17        self.anchor = anchor
18        self.start_mark = start_mark
19        self.end_mark = end_mark
20
21class CollectionStartEvent(NodeEvent):
22    def __init__(self, anchor, tag, implicit, start_mark=None, end_mark=None,
23            flow_style=None):
24        self.anchor = anchor
25        self.tag = tag
26        self.implicit = implicit
27        self.start_mark = start_mark
28        self.end_mark = end_mark
29        self.flow_style = flow_style
30
31class CollectionEndEvent(Event):
32    pass
33
34# Implementations.
35
36class StreamStartEvent(Event):
37    def __init__(self, start_mark=None, end_mark=None, encoding=None):
38        self.start_mark = start_mark
39        self.end_mark = end_mark
40        self.encoding = encoding
41
42class StreamEndEvent(Event):
43    pass
44
45class DocumentStartEvent(Event):
46    def __init__(self, start_mark=None, end_mark=None,
47            explicit=None, version=None, tags=None):
48        self.start_mark = start_mark
49        self.end_mark = end_mark
50        self.explicit = explicit
51        self.version = version
52        self.tags = tags
53
54class DocumentEndEvent(Event):
55    def __init__(self, start_mark=None, end_mark=None,
56            explicit=None):
57        self.start_mark = start_mark
58        self.end_mark = end_mark
59        self.explicit = explicit
60
61class AliasEvent(NodeEvent):
62    pass
63
64class ScalarEvent(NodeEvent):
65    def __init__(self, anchor, tag, implicit, value,
66            start_mark=None, end_mark=None, style=None):
67        self.anchor = anchor
68        self.tag = tag
69        self.implicit = implicit
70        self.value = value
71        self.start_mark = start_mark
72        self.end_mark = end_mark
73        self.style = style
74
75class SequenceStartEvent(CollectionStartEvent):
76    pass
77
78class SequenceEndEvent(CollectionEndEvent):
79    pass
80
81class MappingStartEvent(CollectionStartEvent):
82    pass
83
84class MappingEndEvent(CollectionEndEvent):
85    pass
86
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