lib/yaml/nodes.py

   1
   2 class Node:
   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         return '%s(tag=%r, value=%s)' % (self.__class__.__name__, self.tag, value)
  23
  24 class ScalarNode(Node):
  25     id = 'scalar'
  26     def __init__(self, tag, value,
  27             start_mark=None, end_mark=None, style=None):
  28         self.tag = tag
  29         self.value = value
  30         self.start_mark = start_mark
  31         self.end_mark = end_mark
  32         self.style = style
  33
  34 class CollectionNode(Node):
  35     def __init__(self, tag, value,
  36             start_mark=None, end_mark=None, flow_style=None):
  37         self.tag = tag
  38         self.value = value
  39         self.start_mark = start_mark
  40         self.end_mark = end_mark
  41         self.flow_style = flow_style
  42
  43 class SequenceNode(CollectionNode):
  44     id = 'sequence'
  45
  46 class MappingNode(CollectionNode):
  47     id = 'mapping'
  48