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# Source code for slixmpp.xmlstream.matcher.xpath

    # slixmpp.xmlstream.matcher.xpath
    # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    # Part of Slixmpp: The Slick XMPP Library
    # :copyright: (c) 2011 Nathanael C. Fritz
    # :license: MIT, see LICENSE for more details
    from typing import cast
    from slixmpp.xmlstream.stanzabase import ET, fix_ns, StanzaBase
    from slixmpp.xmlstream.matcher.base import MatcherBase

    class MatchXPath(MatcherBase):

        """
        The XPath matcher selects stanzas whose XML contents matches a given
        XPath expression.

        If the value of :data:`IGNORE_NS` is set to ``True``, then XPath
        expressions will be matched without using namespaces.
        """
        _criteria: str

        def __init__(self, criteria: str):
            self._criteria = cast(str, fix_ns(criteria))

        def match(self, xml: StanzaBase) -> bool:
            """
            Compare a stanza's XML contents to an XPath expression.

            If the value of :data:`IGNORE_NS` is set to ``True``, then XPath
            expressions will be matched without using namespaces.

            :param xml: The :class:`~slixmpp.xmlstream.stanzabase.StanzaBase`
                        stanza to compare against.
            """
            real_xml = xml.xml
            x = ET.Element('x')
            x.append(real_xml)

            return x.find(self._criteria) is not None