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import cobble
class Node(object):
pass
@cobble.data
class TextNode(Node):
value = cobble.field()
@cobble.data
class Tag(object):
tag_names = cobble.field()
attributes = cobble.field()
collapsible = cobble.field()
separator = cobble.field()
@property
def tag_name(self):
return self.tag_names[0]
@cobble.data
class Element(Node):
tag = cobble.field()
children = cobble.field()
@property
def tag_name(self):
return self.tag.tag_name
@property
def tag_names(self):
return self.tag.tag_names
@property
def attributes(self):
return self.tag.attributes
@property
def collapsible(self):
return self.tag.collapsible
@property
def separator(self):
return self.tag.separator
_VOID_TAG_NAMES = set(["br", "hr", "img", "input"])
def is_void(self):
return not self.children and self.tag_name in self._VOID_TAG_NAMES
@cobble.visitable
class ForceWrite(Node):
pass
NodeVisitor = cobble.visitor(Node)
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