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from typing import Dict, List, Optional, Type
from xsdata.formats.dataclass.models.elements import XmlVar
from xsdata.formats.dataclass.parsers.mixins import XmlNode
from xsdata.formats.dataclass.parsers.utils import ParserUtils
class WildcardNode(XmlNode):
"""
XmlNode for extensible elements that can hold any attribute and content.
The resulting object tree will be a
:class:`~xsdata.formats.dataclass.models.generics.AnyElement`
instance.
:param var: Class field xml var instance
:param attrs: Key-value attribute mapping
:param ns_map: Namespace prefix-URI map
:param position: The node position of objects cache
:param factory: Wildcard element factory
"""
__slots__ = "var", "attrs", "ns_map", "position", "factory"
def __init__(
self, var: XmlVar, attrs: Dict, ns_map: Dict, position: int, factory: Type
):
self.var = var
self.attrs = attrs
self.ns_map = ns_map
self.position = position
self.factory = factory
def bind(
self, qname: str, text: Optional[str], tail: Optional[str], objects: List
) -> bool:
children = self.fetch_any_children(self.position, objects)
attributes = ParserUtils.parse_any_attributes(self.attrs, self.ns_map)
derived = self.var.derived or qname != self.var.qname
text = ParserUtils.normalize_content(text) if children else text
text = "" if text is None and not self.var.nillable else text
tail = ParserUtils.normalize_content(tail)
if tail or attributes or children or self.var.is_wildcard or derived:
obj = self.factory(
qname=qname,
text=text,
tail=tail,
attributes=attributes,
children=children,
)
objects.append((self.var.qname, obj))
else:
objects.append((self.var.qname, text))
return True
@classmethod
def fetch_any_children(cls, position: int, objects: List) -> List:
"""Fetch the children of a wildcard node."""
children = [value for _, value in objects[position:]]
del objects[position:]
return children
def child(self, qname: str, attrs: Dict, ns_map: Dict, position: int) -> XmlNode:
return WildcardNode(
position=position,
var=self.var,
attrs=attrs,
ns_map=ns_map,
factory=self.factory,
)
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