1 files changed, 51 insertions, 3 deletions
diff --git a/src/beautifulsoup/builder/__init__.py b/src/beautifulsoup/builder/__init__.py
index 544e896..cf54c9c 100644
--- a/src/beautifulsoup/builder/__init__.py
+++ b/src/beautifulsoup/builder/__init__.py
@@ -1,8 +1,10 @@
 from beautifulsoup.element import Entities
 
-__all__ = ['TreeBuilder',
-           'HTMLTreeBuilder',
-           ]
+__all__ = [
+    'HTMLTreeBuilder',
+    'SAXTreeBuilder',
+    'TreeBuilder',
+    ]
 
 class TreeBuilder(Entities):
     """Turn a document into a Beautiful Soup object tree."""
@@ -25,6 +27,52 @@ class TreeBuilder(Entities):
         raise NotImplementedError()
 
 
+class SAXTreeBuilder(TreeBuilder):
+    """A Beautiful Soup treebuilder that listens for SAX events."""
+
+    def feed(self, markup):
+        raise NotImplementedError()
+
+    def close(self):
+        pass
+
+    def startElement(self, name, attrs):
+        attrs = dict((key[1], value) for key, value in attrs.items())
+        #print "Start %s, %r" % (name, attrs)
+        self.soup.handle_starttag(name, attrs)
+
+    def endElement(self, name):
+        #print "End %s" % name
+        self.soup.handle_endtag(name)
+
+    def startElementNS(self, nsTuple, nodeName, attrs):
+        # Throw away (ns, nodeName) for now.
+        self.startElement(nodeName, attrs)
+
+    def endElementNS(self, nsTuple, nodeName):
+        # Throw away (ns, nodeName) for now.
+        self.endElement(nodeName)
+        #handler.endElementNS((ns, node.nodeName), node.nodeName)
+
+    def startPrefixMapping(self, prefix, nodeValue):
+        # Ignore the prefix for now.
+        pass
+
+    def endPrefixMapping(self, prefix):
+        # Ignore the prefix for now.
+        # handler.endPrefixMapping(prefix)
+        pass
+
+    def characters(self, content):
+        self.soup.handle_data(content)
+
+    def startDocument(self):
+        pass
+
+    def endDocument(self):
+        pass
+
+
 class HTMLTreeBuilder(TreeBuilder):
     """This TreeBuilder knows facts about HTML.