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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 slixmpp.xmlstream.matcher.base import MatcherBase
from slixmpp.xmlstream.stanzabase import fix_ns
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.
"""
def __init__(self, criteria):
self._criteria = fix_ns(criteria, split=True,
propagate_ns=False,
default_ns='jabber:client')
self._raw_criteria = criteria
def match(self, stanza):
"""
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.ElementBase.match()` method
for more information.
:param stanza: The :class:`~slixmpp.xmlstream.stanzabase.ElementBase`
stanza to compare against.
"""
return stanza.match(self._criteria) or stanza.match(self._raw_criteria)
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