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# slixmpp.xmlstream.matcher.stanzapath
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# Part of Slixmpp: The Slick XMPP Library
# :copyright: (c) 2011 Nathanael C. Fritz
# :license: MIT, see LICENSE for more details
from typing import cast, List
from slixmpp.xmlstream.matcher.base import MatcherBase
from slixmpp.xmlstream.stanzabase import fix_ns, StanzaBase
class StanzaPath(MatcherBase):
"""
The StanzaPath matcher selects stanzas that match a given "stanza path",
which is similar to a normal XPath except that it uses the interfaces and
plugins of the stanza instead of the actual, underlying XML.
:param criteria: Object to compare some aspect of a stanza against.
"""
_criteria: List[str]
_raw_criteria: str
def __init__(self, criteria: str):
self._criteria = cast(
List[str],
fix_ns(
criteria, split=True, propagate_ns=False,
default_ns='jabber:client'
)
)
self._raw_criteria = criteria
def match(self, stanza: StanzaBase) -> bool:
"""
Compare a stanza against a "stanza path". A stanza path is similar to
an XPath expression, but uses the stanza's interfaces and plugins
instead of the underlying XML. See the documentation for the stanza
:meth:`~slixmpp.xmlstream.stanzabase.StanzaBase.match()` method
for more information.
:param stanza: The :class:`~slixmpp.xmlstream.stanzabase.StanzaBase`
stanza to compare against.
"""
return stanza.match(self._criteria) or stanza.match(self._raw_criteria)
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