1 files changed, 59 insertions, 0 deletions
diff --git a/slixmpp/xmlstream/matcher/xpath.py b/slixmpp/xmlstream/matcher/xpath.py
new file mode 100644
index 00000000..31ab1b8c
--- /dev/null
+++ b/slixmpp/xmlstream/matcher/xpath.py
@@ -0,0 +1,59 @@
+# -*- coding: utf-8 -*-
+"""
+    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 slixmpp.xmlstream.stanzabase import ET, fix_ns
+from slixmpp.xmlstream.matcher.base import MatcherBase
+
+
+class MatchXPath(MatcherBase):
+
+    """
+    The XPath matcher selects stanzas whose XML contents matches a given
+    XPath expression.
+
+    .. warning::
+
+        Using this matcher may not produce expected behavior when using
+        attribute selectors. For Python 2.6 and 3.1, the ElementTree
+        :meth:`~xml.etree.ElementTree.Element.find()` method does
+        not support the use of attribute selectors. If you need to
+        support Python 2.6 or 3.1, it might be more useful to use a
+        :class:`~slixmpp.xmlstream.matcher.stanzapath.StanzaPath` matcher.
+
+    If the value of :data:`IGNORE_NS` is set to ``True``, then XPath
+    expressions will be matched without using namespaces.
+    """
+
+    def __init__(self, criteria):
+        self._criteria = fix_ns(criteria)
+
+    def match(self, xml):
+        """
+        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.
+
+        .. warning::
+
+            In Python 2.6 and 3.1 the ElementTree
+            :meth:`~xml.etree.ElementTree.Element.find()` method does not
+            support attribute selectors in the XPath expression.
+
+        :param xml: The :class:`~slixmpp.xmlstream.stanzabase.ElementBase`
+                    stanza to compare against.
+        """
+        if hasattr(xml, 'xml'):
+            xml = xml.xml
+        x = ET.Element('x')
+        x.append(xml)
+
+        return x.find(self._criteria) is not None