| 1 | # SPDX-License-Identifier: MIT |
| 2 | |
| 3 | # Abstract classes. |
| 4 | |
| 5 | class Event(object): |
| 6 | def __init__(self, start_mark=None, end_mark=None): |
| 7 | self.start_mark = start_mark |
| 8 | self.end_mark = end_mark |
| 9 | def __repr__(self): |
| 10 | attributes = [key for key in ['anchor', 'tag', 'implicit', 'value'] |
| 11 | if hasattr(self, key)] |
| 12 | arguments = ', '.join(['%s=%r' % (key, getattr(self, key)) |
| 13 | for key in attributes]) |
| 14 | return '%s(%s)' % (self.__class__.__name__, arguments) |
| 15 | |
| 16 | class NodeEvent(Event): |
| 17 | def __init__(self, anchor, start_mark=None, end_mark=None): |
| 18 | self.anchor = anchor |
| 19 | self.start_mark = start_mark |
| 20 | self.end_mark = end_mark |
| 21 | |
| 22 | class CollectionStartEvent(NodeEvent): |
| 23 | def __init__(self, anchor, tag, implicit, start_mark=None, end_mark=None, |
| 24 | flow_style=None): |
| 25 | self.anchor = anchor |
| 26 | self.tag = tag |
| 27 | self.implicit = implicit |
| 28 | self.start_mark = start_mark |
| 29 | self.end_mark = end_mark |
| 30 | self.flow_style = flow_style |
| 31 | |
| 32 | class CollectionEndEvent(Event): |
| 33 | pass |
| 34 | |
| 35 | # Implementations. |
| 36 | |
| 37 | class StreamStartEvent(Event): |
| 38 | def __init__(self, start_mark=None, end_mark=None, encoding=None): |
| 39 | self.start_mark = start_mark |
| 40 | self.end_mark = end_mark |
| 41 | self.encoding = encoding |
| 42 | |
| 43 | class StreamEndEvent(Event): |
| 44 | pass |
| 45 | |
| 46 | class DocumentStartEvent(Event): |
| 47 | def __init__(self, start_mark=None, end_mark=None, |
| 48 | explicit=None, version=None, tags=None): |
| 49 | self.start_mark = start_mark |
| 50 | self.end_mark = end_mark |
| 51 | self.explicit = explicit |
| 52 | self.version = version |
| 53 | self.tags = tags |
| 54 | |
| 55 | class DocumentEndEvent(Event): |
| 56 | def __init__(self, start_mark=None, end_mark=None, |
| 57 | explicit=None): |
| 58 | self.start_mark = start_mark |
| 59 | self.end_mark = end_mark |
| 60 | self.explicit = explicit |
| 61 | |
| 62 | class AliasEvent(NodeEvent): |
| 63 | pass |
| 64 | |
| 65 | class ScalarEvent(NodeEvent): |
| 66 | def __init__(self, anchor, tag, implicit, value, |
| 67 | start_mark=None, end_mark=None, style=None): |
| 68 | self.anchor = anchor |
| 69 | self.tag = tag |
| 70 | self.implicit = implicit |
| 71 | self.value = value |
| 72 | self.start_mark = start_mark |
| 73 | self.end_mark = end_mark |
| 74 | self.style = style |
| 75 | |
| 76 | class SequenceStartEvent(CollectionStartEvent): |
| 77 | pass |
| 78 | |
| 79 | class SequenceEndEvent(CollectionEndEvent): |
| 80 | pass |
| 81 | |
| 82 | class MappingStartEvent(CollectionStartEvent): |
| 83 | pass |
| 84 | |
| 85 | class MappingEndEvent(CollectionEndEvent): |
| 86 | pass |
| 87 |