overview speed fix, added lib dir

3 files changed, 5897 insertions, 0 deletions

diff --git a/module/lib/BeautifulSoup.py b/module/lib/BeautifulSoup.py
new file mode 100644
index 000000000..748e6fe4b
--- /dev/null
+++ b/module/lib/BeautifulSoup.py
@@ -0,0 +1,2012 @@
+"""Beautiful Soup
+Elixir and Tonic
+"The Screen-Scraper's Friend"
+http://www.crummy.com/software/BeautifulSoup/
+
+Beautiful Soup parses a (possibly invalid) XML or HTML document into a
+tree representation. It provides methods and Pythonic idioms that make
+it easy to navigate, search, and modify the tree.
+
+A well-formed XML/HTML document yields a well-formed data
+structure. An ill-formed XML/HTML document yields a correspondingly
+ill-formed data structure. If your document is only locally
+well-formed, you can use this library to find and process the
+well-formed part of it.
+
+Beautiful Soup works with Python 2.2 and up. It has no external
+dependencies, but you'll have more success at converting data to UTF-8
+if you also install these three packages:
+
+* chardet, for auto-detecting character encodings
+  http://chardet.feedparser.org/
+* cjkcodecs and iconv_codec, which add more encodings to the ones supported
+  by stock Python.
+  http://cjkpython.i18n.org/
+
+Beautiful Soup defines classes for two main parsing strategies:
+
+ * BeautifulStoneSoup, for parsing XML, SGML, or your domain-specific
+   language that kind of looks like XML.
+
+ * BeautifulSoup, for parsing run-of-the-mill HTML code, be it valid
+   or invalid. This class has web browser-like heuristics for
+   obtaining a sensible parse tree in the face of common HTML errors.
+
+Beautiful Soup also defines a class (UnicodeDammit) for autodetecting
+the encoding of an HTML or XML document, and converting it to
+Unicode. Much of this code is taken from Mark Pilgrim's Universal Feed Parser.
+
+For more than you ever wanted to know about Beautiful Soup, see the
+documentation:
+http://www.crummy.com/software/BeautifulSoup/documentation.html
+
+Here, have some legalese:
+
+Copyright (c) 2004-2010, Leonard Richardson
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+  * Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+
+  * Redistributions in binary form must reproduce the above
+    copyright notice, this list of conditions and the following
+    disclaimer in the documentation and/or other materials provided
+    with the distribution.
+
+  * Neither the name of the the Beautiful Soup Consortium and All
+    Night Kosher Bakery nor the names of its contributors may be
+    used to endorse or promote products derived from this software
+    without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE, DAMMIT.
+
+"""
+from __future__ import generators
+
+__author__ = "Leonard Richardson (leonardr@segfault.org)"
+__version__ = "3.0.8.1"
+__copyright__ = "Copyright (c) 2004-2010 Leonard Richardson"
+__license__ = "New-style BSD"
+
+from sgmllib import SGMLParser, SGMLParseError
+import codecs
+import markupbase
+import types
+import re
+import sgmllib
+try:
+  from htmlentitydefs import name2codepoint
+except ImportError:
+  name2codepoint = {}
+try:
+    set
+except NameError:
+    from sets import Set as set
+
+#These hacks make Beautiful Soup able to parse XML with namespaces
+sgmllib.tagfind = re.compile('[a-zA-Z][-_.:a-zA-Z0-9]*')
+markupbase._declname_match = re.compile(r'[a-zA-Z][-_.:a-zA-Z0-9]*\s*').match
+
+DEFAULT_OUTPUT_ENCODING = "utf-8"
+
+def _match_css_class(str):
+    """Build a RE to match the given CSS class."""
+    return re.compile(r"(^|.*\s)%s($|\s)" % str)
+
+# First, the classes that represent markup elements.
+
+class PageElement(object):
+    """Contains the navigational information for some part of the page
+    (either a tag or a piece of text)"""
+
+    def setup(self, parent=None, previous=None):
+        """Sets up the initial relations between this element and
+        other elements."""
+        self.parent = parent
+        self.previous = previous
+        self.next = None
+        self.previousSibling = None
+        self.nextSibling = None
+        if self.parent and self.parent.contents:
+            self.previousSibling = self.parent.contents[-1]
+            self.previousSibling.nextSibling = self
+
+    def replaceWith(self, replaceWith):
+        oldParent = self.parent
+        myIndex = self.parent.index(self)
+        if hasattr(replaceWith, "parent")\
+                  and replaceWith.parent is self.parent:
+            # We're replacing this element with one of its siblings.
+            index = replaceWith.parent.index(replaceWith)
+            if index and index < myIndex:
+                # Furthermore, it comes before this element. That
+                # means that when we extract it, the index of this
+                # element will change.
+                myIndex = myIndex - 1
+        self.extract()
+        oldParent.insert(myIndex, replaceWith)
+
+    def replaceWithChildren(self):
+        myParent = self.parent
+        myIndex = self.parent.index(self)
+        self.extract()
+        reversedChildren = list(self.contents)
+        reversedChildren.reverse()
+        for child in reversedChildren:
+            myParent.insert(myIndex, child)
+
+    def extract(self):
+        """Destructively rips this element out of the tree."""
+        if self.parent:
+            try:
+                del self.parent.contents[self.parent.index(self)]
+            except ValueError:
+                pass
+
+        #Find the two elements that would be next to each other if
+        #this element (and any children) hadn't been parsed. Connect
+        #the two.
+        lastChild = self._lastRecursiveChild()
+        nextElement = lastChild.next
+
+        if self.previous:
+            self.previous.next = nextElement
+        if nextElement:
+            nextElement.previous = self.previous
+        self.previous = None
+        lastChild.next = None
+
+        self.parent = None
+        if self.previousSibling:
+            self.previousSibling.nextSibling = self.nextSibling
+        if self.nextSibling:
+            self.nextSibling.previousSibling = self.previousSibling
+        self.previousSibling = self.nextSibling = None
+        return self
+
+    def _lastRecursiveChild(self):
+        "Finds the last element beneath this object to be parsed."
+        lastChild = self
+        while hasattr(lastChild, 'contents') and lastChild.contents:
+            lastChild = lastChild.contents[-1]
+        return lastChild
+
+    def insert(self, position, newChild):
+        if isinstance(newChild, basestring) \
+            and not isinstance(newChild, NavigableString):
+            newChild = NavigableString(newChild)
+
+        position =  min(position, len(self.contents))
+        if hasattr(newChild, 'parent') and newChild.parent is not None:
+            # We're 'inserting' an element that's already one
+            # of this object's children.
+            if newChild.parent is self:
+                index = self.index(newChild)
+                if index > position:
+                    # Furthermore we're moving it further down the
+                    # list of this object's children. That means that
+                    # when we extract this element, our target index
+                    # will jump down one.
+                    position = position - 1
+            newChild.extract()
+
+        newChild.parent = self
+        previousChild = None
+        if position == 0:
+            newChild.previousSibling = None
+            newChild.previous = self
+        else:
+            previousChild = self.contents[position-1]
+            newChild.previousSibling = previousChild
+            newChild.previousSibling.nextSibling = newChild
+            newChild.previous = previousChild._lastRecursiveChild()
+        if newChild.previous:
+            newChild.previous.next = newChild
+
+        newChildsLastElement = newChild._lastRecursiveChild()
+
+        if position >= len(self.contents):
+            newChild.nextSibling = None
+
+            parent = self
+            parentsNextSibling = None
+            while not parentsNextSibling:
+                parentsNextSibling = parent.nextSibling
+                parent = parent.parent
+                if not parent: # This is the last element in the document.
+                    break
+            if parentsNextSibling:
+                newChildsLastElement.next = parentsNextSibling
+            else:
+                newChildsLastElement.next = None
+        else:
+            nextChild = self.contents[position]
+            newChild.nextSibling = nextChild
+            if newChild.nextSibling:
+                newChild.nextSibling.previousSibling = newChild
+            newChildsLastElement.next = nextChild
+
+        if newChildsLastElement.next:
+            newChildsLastElement.next.previous = newChildsLastElement
+        self.contents.insert(position, newChild)
+
+    def append(self, tag):
+        """Appends the given tag to the contents of this tag."""
+        self.insert(len(self.contents), tag)
+
+    def findNext(self, name=None, attrs={}, text=None, **kwargs):
+        """Returns the first item that matches the given criteria and
+        appears after this Tag in the document."""
+        return self._findOne(self.findAllNext, name, attrs, text, **kwargs)
+
+    def findAllNext(self, name=None, attrs={}, text=None, limit=None,
+                    **kwargs):
+        """Returns all items that match the given criteria and appear
+        after this Tag in the document."""
+        return self._findAll(name, attrs, text, limit, self.nextGenerator,
+                             **kwargs)
+
+    def findNextSibling(self, name=None, attrs={}, text=None, **kwargs):
+        """Returns the closest sibling to this Tag that matches the
+        given criteria and appears after this Tag in the document."""
+        return self._findOne(self.findNextSiblings, name, attrs, text,
+                             **kwargs)
+
+    def findNextSiblings(self, name=None, attrs={}, text=None, limit=None,
+                         **kwargs):
+        """Returns the siblings of this Tag that match the given
+        criteria and appear after this Tag in the document."""
+        return self._findAll(name, attrs, text, limit,
+                             self.nextSiblingGenerator, **kwargs)
+    fetchNextSiblings = findNextSiblings # Compatibility with pre-3.x
+
+    def findPrevious(self, name=None, attrs={}, text=None, **kwargs):
+        """Returns the first item that matches the given criteria and
+        appears before this Tag in the document."""
+        return self._findOne(self.findAllPrevious, name, attrs, text, **kwargs)
+
+    def findAllPrevious(self, name=None, attrs={}, text=None, limit=None,
+                        **kwargs):
+        """Returns all items that match the given criteria and appear
+        before this Tag in the document."""
+        return self._findAll(name, attrs, text, limit, self.previousGenerator,
+                           **kwargs)
+    fetchPrevious = findAllPrevious # Compatibility with pre-3.x
+
+    def findPreviousSibling(self, name=None, attrs={}, text=None, **kwargs):
+        """Returns the closest sibling to this Tag that matches the
+        given criteria and appears before this Tag in the document."""
+        return self._findOne(self.findPreviousSiblings, name, attrs, text,
+                             **kwargs)
+
+    def findPreviousSiblings(self, name=None, attrs={}, text=None,
+                             limit=None, **kwargs):
+        """Returns the siblings of this Tag that match the given
+        criteria and appear before this Tag in the document."""
+        return self._findAll(name, attrs, text, limit,
+                             self.previousSiblingGenerator, **kwargs)
+    fetchPreviousSiblings = findPreviousSiblings # Compatibility with pre-3.x
+
+    def findParent(self, name=None, attrs={}, **kwargs):
+        """Returns the closest parent of this Tag that matches the given
+        criteria."""
+        # NOTE: We can't use _findOne because findParents takes a different
+        # set of arguments.
+        r = None
+        l = self.findParents(name, attrs, 1)
+        if l:
+            r = l[0]
+        return r
+
+    def findParents(self, name=None, attrs={}, limit=None, **kwargs):
+        """Returns the parents of this Tag that match the given
+        criteria."""
+
+        return self._findAll(name, attrs, None, limit, self.parentGenerator,
+                             **kwargs)
+    fetchParents = findParents # Compatibility with pre-3.x
+
+    #These methods do the real heavy lifting.
+
+    def _findOne(self, method, name, attrs, text, **kwargs):
+        r = None
+        l = method(name, attrs, text, 1, **kwargs)
+        if l:
+            r = l[0]
+        return r
+
+    def _findAll(self, name, attrs, text, limit, generator, **kwargs):
+        "Iterates over a generator looking for things that match."
+
+        if isinstance(name, SoupStrainer):
+            strainer = name
+        # (Possibly) special case some findAll*(...) searches
+        elif text is None and not limit and not attrs and not kwargs:
+            # findAll*(True)
+            if name is True:
+                return [element for element in generator()
+                        if isinstance(element, Tag)]
+            # findAll*('tag-name')
+            elif isinstance(name, basestring):
+                return [element for element in generator()
+                        if isinstance(element, Tag) and
+                        element.name == name]
+            else:
+                strainer = SoupStrainer(name, attrs, text, **kwargs)
+        # Build a SoupStrainer
+        else:
+            strainer = SoupStrainer(name, attrs, text, **kwargs)
+        results = ResultSet(strainer)
+        g = generator()
+        while True:
+            try:
+                i = g.next()
+            except StopIteration:
+                break
+            if i:
+                found = strainer.search(i)
+                if found:
+                    results.append(found)
+                    if limit and len(results) >= limit:
+                        break
+        return results
+
+    #These Generators can be used to navigate starting from both
+    #NavigableStrings and Tags.
+    def nextGenerator(self):
+        i = self
+        while i is not None:
+            i = i.next
+            yield i
+
+    def nextSiblingGenerator(self):
+        i = self
+        while i is not None:
+            i = i.nextSibling
+            yield i
+
+    def previousGenerator(self):
+        i = self
+        while i is not None:
+            i = i.previous
+            yield i
+
+    def previousSiblingGenerator(self):
+        i = self
+        while i is not None:
+            i = i.previousSibling
+            yield i
+
+    def parentGenerator(self):
+        i = self
+        while i is not None:
+            i = i.parent
+            yield i
+
+    # Utility methods
+    def substituteEncoding(self, str, encoding=None):
+        encoding = encoding or "utf-8"
+        return str.replace("%SOUP-ENCODING%", encoding)
+
+    def toEncoding(self, s, encoding=None):
+        """Encodes an object to a string in some encoding, or to Unicode.
+        ."""
+        if isinstance(s, unicode):
+            if encoding:
+                s = s.encode(encoding)
+        elif isinstance(s, str):
+            if encoding:
+                s = s.encode(encoding)
+            else:
+                s = unicode(s)
+        else:
+            if encoding:
+                s  = self.toEncoding(str(s), encoding)
+            else:
+                s = unicode(s)
+        return s
+
+class NavigableString(unicode, PageElement):
+
+    def __new__(cls, value):
+        """Create a new NavigableString.
+
+        When unpickling a NavigableString, this method is called with
+        the string in DEFAULT_OUTPUT_ENCODING. That encoding needs to be
+        passed in to the superclass's __new__ or the superclass won't know
+        how to handle non-ASCII characters.
+        """
+        if isinstance(value, unicode):
+            return unicode.__new__(cls, value)
+        return unicode.__new__(cls, value, DEFAULT_OUTPUT_ENCODING)
+
+    def __getnewargs__(self):
+        return (NavigableString.__str__(self),)
+
+    def __getattr__(self, attr):
+        """text.string gives you text. This is for backwards
+        compatibility for Navigable*String, but for CData* it lets you
+        get the string without the CData wrapper."""
+        if attr == 'string':
+            return self
+        else:
+            raise AttributeError, "'%s' object has no attribute '%s'" % (self.__class__.__name__, attr)
+
+    def __unicode__(self):
+        return str(self).decode(DEFAULT_OUTPUT_ENCODING)
+
+    def __str__(self, encoding=DEFAULT_OUTPUT_ENCODING):
+        if encoding:
+            return self.encode(encoding)
+        else:
+            return self
+
+class CData(NavigableString):
+
+    def __str__(self, encoding=DEFAULT_OUTPUT_ENCODING):
+        return "<![CDATA[%s]]>" % NavigableString.__str__(self, encoding)
+
+class ProcessingInstruction(NavigableString):
+    def __str__(self, encoding=DEFAULT_OUTPUT_ENCODING):
+        output = self
+        if "%SOUP-ENCODING%" in output:
+            output = self.substituteEncoding(output, encoding)
+        return "<?%s?>" % self.toEncoding(output, encoding)
+
+class Comment(NavigableString):
+    def __str__(self, encoding=DEFAULT_OUTPUT_ENCODING):
+        return "<!--%s-->" % NavigableString.__str__(self, encoding)
+
+class Declaration(NavigableString):
+    def __str__(self, encoding=DEFAULT_OUTPUT_ENCODING):
+        return "<!%s>" % NavigableString.__str__(self, encoding)
+
+class Tag(PageElement):
+
+    """Represents a found HTML tag with its attributes and contents."""
+
+    def _invert(h):
+        "Cheap function to invert a hash."
+        i = {}
+        for k,v in h.items():
+            i[v] = k
+        return i
+
+    XML_ENTITIES_TO_SPECIAL_CHARS = { "apos" : "'",
+                                      "quot" : '"',
+                                      "amp" : "&",
+                                      "lt" : "<",
+                                      "gt" : ">" }
+
+    XML_SPECIAL_CHARS_TO_ENTITIES = _invert(XML_ENTITIES_TO_SPECIAL_CHARS)
+
+    def _convertEntities(self, match):
+        """Used in a call to re.sub to replace HTML, XML, and numeric
+        entities with the appropriate Unicode characters. If HTML
+        entities are being converted, any unrecognized entities are
+        escaped."""
+        x = match.group(1)
+        if self.convertHTMLEntities and x in name2codepoint:
+            return unichr(name2codepoint[x])
+        elif x in self.XML_ENTITIES_TO_SPECIAL_CHARS:
+            if self.convertXMLEntities:
+                return self.XML_ENTITIES_TO_SPECIAL_CHARS[x]
+            else:
+                return u'&%s;' % x
+        elif len(x) > 0 and x[0] == '#':
+            # Handle numeric entities
+            if len(x) > 1 and x[1] == 'x':
+                return unichr(int(x[2:], 16))
+            else:
+                return unichr(int(x[1:]))
+
+        elif self.escapeUnrecognizedEntities:
+            return u'&amp;%s;' % x
+        else:
+            return u'&%s;' % x
+
+    def __init__(self, parser, name, attrs=None, parent=None,
+                 previous=None):
+        "Basic constructor."
+
+        # We don't actually store the parser object: that lets extracted
+        # chunks be garbage-collected
+        self.parserClass = parser.__class__
+        self.isSelfClosing = parser.isSelfClosingTag(name)
+        self.name = name
+        if attrs is None:
+            attrs = []
+        self.attrs = attrs
+        self.contents = []
+        self.setup(parent, previous)
+        self.hidden = False
+        self.containsSubstitutions = False
+        self.convertHTMLEntities = parser.convertHTMLEntities
+        self.convertXMLEntities = parser.convertXMLEntities
+        self.escapeUnrecognizedEntities = parser.escapeUnrecognizedEntities
+
+        # Convert any HTML, XML, or numeric entities in the attribute values.
+        convert = lambda(k, val): (k,
+                                   re.sub("&(#\d+|#x[0-9a-fA-F]+|\w+);",
+                                          self._convertEntities,
+                                          val))
+        self.attrs = map(convert, self.attrs)
+
+    def getString(self):
+        if (len(self.contents) == 1
+            and isinstance(self.contents[0], NavigableString)):
+            return self.contents[0]
+
+    def setString(self, string):
+        """Replace the contents of the tag with a string"""
+        self.clear()
+        self.append(string)
+
+    string = property(getString, setString)
+
+    def getText(self, separator=u""):
+        if not len(self.contents):
+            return u""
+        stopNode = self._lastRecursiveChild().next
+        strings = []
+        current = self.contents[0]
+        while current is not stopNode:
+            if isinstance(current, NavigableString):
+                strings.append(current.strip())
+            current = current.next
+        return separator.join(strings)
+
+    text = property(getText)
+
+    def get(self, key, default=None):
+        """Returns the value of the 'key' attribute for the tag, or
+        the value given for 'default' if it doesn't have that
+        attribute."""
+        return self._getAttrMap().get(key, default)
+
+    def clear(self):
+        """Extract all children."""
+        for child in self.contents[:]:
+            child.extract()
+
+    def index(self, element):
+        for i, child in enumerate(self.contents):
+            if child is element:
+                return i
+        raise ValueError("Tag.index: element not in tag")
+
+    def has_key(self, key):
+        return self._getAttrMap().has_key(key)
+
+    def __getitem__(self, key):
+        """tag[key] returns the value of the 'key' attribute for the tag,
+        and throws an exception if it's not there."""
+        return self._getAttrMap()[key]
+
+    def __iter__(self):
+        "Iterating over a tag iterates over its contents."
+        return iter(self.contents)
+
+    def __len__(self):
+        "The length of a tag is the length of its list of contents."
+        return len(self.contents)
+
+    def __contains__(self, x):
+        return x in self.contents
+
+    def __nonzero__(self):
+        "A tag is non-None even if it has no contents."
+        return True
+
+    def __setitem__(self, key, value):
+        """Setting tag[key] sets the value of the 'key' attribute for the
+        tag."""
+        self._getAttrMap()
+        self.attrMap[key] = value
+        found = False
+        for i in range(0, len(self.attrs)):
+            if self.attrs[i][0] == key:
+                self.attrs[i] = (key, value)
+                found = True
+        if not found:
+            self.attrs.append((key, value))
+        self._getAttrMap()[key] = value
+
+    def __delitem__(self, key):
+        "Deleting tag[key] deletes all 'key' attributes for the tag."
+        for item in self.attrs:
+            if item[0] == key:
+                self.attrs.remove(item)
+                #We don't break because bad HTML can define the same
+                #attribute multiple times.
+            self._getAttrMap()
+            if self.attrMap.has_key(key):
+                del self.attrMap[key]
+
+    def __call__(self, *args, **kwargs):
+        """Calling a tag like a function is the same as calling its
+        findAll() method. Eg. tag('a') returns a list of all the A tags
+        found within this tag."""
+        return apply(self.findAll, args, kwargs)
+
+    def __getattr__(self, tag):
+        #print "Getattr %s.%s" % (self.__class__, tag)
+        if len(tag) > 3 and tag.rfind('Tag') == len(tag)-3:
+            return self.find(tag[:-3])
+        elif tag.find('__') != 0:
+            return self.find(tag)
+        raise AttributeError, "'%s' object has no attribute '%s'" % (self.__class__, tag)
+
+    def __eq__(self, other):
+        """Returns true iff this tag has the same name, the same attributes,
+        and the same contents (recursively) as the given tag.
+
+        NOTE: right now this will return false if two tags have the
+        same attributes in a different order. Should this be fixed?"""
+        if other is self:
+            return True
+        if not hasattr(other, 'name') or not hasattr(other, 'attrs') or not hasattr(other, 'contents') or self.name != other.name or self.attrs != other.attrs or len(self) != len(other):
+            return False
+        for i in range(0, len(self.contents)):
+            if self.contents[i] != other.contents[i]:
+                return False
+        return True
+
+    def __ne__(self, other):
+        """Returns true iff this tag is not identical to the other tag,
+        as defined in __eq__."""
+        return not self == other
+
+    def __repr__(self, encoding=DEFAULT_OUTPUT_ENCODING):
+        """Renders this tag as a string."""
+        return self.__str__(encoding)
+
+    def __unicode__(self):
+        return self.__str__(None)
+
+    BARE_AMPERSAND_OR_BRACKET = re.compile("([<>]|"
+                                           + "&(?!#\d+;|#x[0-9a-fA-F]+;|\w+;)"
+                                           + ")")
+
+    def _sub_entity(self, x):
+        """Used with a regular expression to substitute the
+        appropriate XML entity for an XML special character."""
+        return "&" + self.XML_SPECIAL_CHARS_TO_ENTITIES[x.group(0)[0]] + ";"
+
+    def __str__(self, encoding=DEFAULT_OUTPUT_ENCODING,
+                prettyPrint=False, indentLevel=0):
+        """Returns a string or Unicode representation of this tag and
+        its contents. To get Unicode, pass None for encoding.
+
+        NOTE: since Python's HTML parser consumes whitespace, this
+        method is not certain to reproduce the whitespace present in
+        the original string."""
+
+        encodedName = self.toEncoding(self.name, encoding)
+
+        attrs = []
+        if self.attrs:
+            for key, val in self.attrs:
+                fmt = '%s="%s"'
+                if isinstance(val, basestring):
+                    if self.containsSubstitutions and '%SOUP-ENCODING%' in val:
+                        val = self.substituteEncoding(val, encoding)
+
+                    # The attribute value either:
+                    #
+                    # * Contains no embedded double quotes or single quotes.
+                    #   No problem: we enclose it in double quotes.
+                    # * Contains embedded single quotes. No problem:
+                    #   double quotes work here too.
+                    # * Contains embedded double quotes. No problem:
+                    #   we enclose it in single quotes.
+                    # * Embeds both single _and_ double quotes. This
+                    #   can't happen naturally, but it can happen if
+                    #   you modify an attribute value after parsing
+                    #   the document. Now we have a bit of a
+                    #   problem. We solve it by enclosing the
+                    #   attribute in single quotes, and escaping any
+                    #   embedded single quotes to XML entities.
+                    if '"' in val:
+                        fmt = "%s='%s'"
+                        if "'" in val:
+                            # TODO: replace with apos when
+                            # appropriate.
+                            val = val.replace("'", "&squot;")
+
+                    # Now we're okay w/r/t quotes. But the attribute
+                    # value might also contain angle brackets, or
+                    # ampersands that aren't part of entities. We need
+                    # to escape those to XML entities too.
+                    val = self.BARE_AMPERSAND_OR_BRACKET.sub(self._sub_entity, val)
+
+                attrs.append(fmt % (self.toEncoding(key, encoding),
+                                    self.toEncoding(val, encoding)))
+        close = ''
+        closeTag = ''
+        if self.isSelfClosing:
+            close = ' /'
+        else:
+            closeTag = '</%s>' % encodedName
+
+        indentTag, indentContents = 0, 0
+        if prettyPrint:
+            indentTag = indentLevel
+            space = (' ' * (indentTag-1))
+            indentContents = indentTag + 1
+        contents = self.renderContents(encoding, prettyPrint, indentContents)
+        if self.hidden:
+            s = contents
+        else:
+            s = []
+            attributeString = ''
+            if attrs:
+                attributeString = ' ' + ' '.join(attrs)
+            if prettyPrint:
+                s.append(space)
+            s.append('<%s%s%s>' % (encodedName, attributeString, close))
+            if prettyPrint:
+                s.append("\n")
+            s.append(contents)
+            if prettyPrint and contents and contents[-1] != "\n":
+                s.append("\n")
+            if prettyPrint and closeTag:
+                s.append(space)
+            s.append(closeTag)
+            if prettyPrint and closeTag and self.nextSibling:
+                s.append("\n")
+            s = ''.join(s)
+        return s
+
+    def decompose(self):
+        """Recursively destroys the contents of this tree."""
+        self.extract()
+        if len(self.contents) == 0:
+            return
+        current = self.contents[0]
+        while current is not None:
+            next = current.next
+            if isinstance(current, Tag):
+                del current.contents[:]
+            current.parent = None
+            current.previous = None
+            current.previousSibling = None
+            current.next = None
+            current.nextSibling = None
+            current = next
+
+    def prettify(self, encoding=DEFAULT_OUTPUT_ENCODING):
+        return self.__str__(encoding, True)
+
+    def renderContents(self, encoding=DEFAULT_OUTPUT_ENCODING,
+                       prettyPrint=False, indentLevel=0):
+        """Renders the contents of this tag as a string in the given
+        encoding. If encoding is None, returns a Unicode string.."""
+        s=[]
+        for c in self:
+            text = None
+            if isinstance(c, NavigableString):
+                text = c.__str__(encoding)
+            elif isinstance(c, Tag):
+                s.append(c.__str__(encoding, prettyPrint, indentLevel))
+            if text and prettyPrint:
+                text = text.strip()
+            if text:
+                if prettyPrint:
+                    s.append(" " * (indentLevel-1))
+                s.append(text)
+                if prettyPrint:
+                    s.append("\n")
+        return ''.join(s)
+
+    #Soup methods
+
+    def find(self, name=None, attrs={}, recursive=True, text=None,
+             **kwargs):
+        """Return only the first child of this Tag matching the given
+        criteria."""
+        r = None
+        l = self.findAll(name, attrs, recursive, text, 1, **kwargs)
+        if l:
+            r = l[0]
+        return r
+    findChild = find
+
+    def findAll(self, name=None, attrs={}, recursive=True, text=None,
+                limit=None, **kwargs):
+        """Extracts a list of Tag objects that match the given
+        criteria.  You can specify the name of the Tag and any
+        attributes you want the Tag to have.
+
+        The value of a key-value pair in the 'attrs' map can be a
+        string, a list of strings, a regular expression object, or a
+        callable that takes a string and returns whether or not the
+        string matches for some custom definition of 'matches'. The
+        same is true of the tag name."""
+        generator = self.recursiveChildGenerator
+        if not recursive:
+            generator = self.childGenerator
+        return self._findAll(name, attrs, text, limit, generator, **kwargs)
+    findChildren = findAll
+
+    # Pre-3.x compatibility methods
+    first = find
+    fetch = findAll
+
+    def fetchText(self, text=None, recursive=True, limit=None):
+        return self.findAll(text=text, recursive=recursive, limit=limit)
+
+    def firstText(self, text=None, recursive=True):
+        return self.find(text=text, recursive=recursive)
+
+    #Private methods
+
+    def _getAttrMap(self):
+        """Initializes a map representation of this tag's attributes,
+        if not already initialized."""
+        if not getattr(self, 'attrMap'):
+            self.attrMap = {}
+            for (key, value) in self.attrs:
+                self.attrMap[key] = value
+        return self.attrMap
+
+    #Generator methods
+    def childGenerator(self):
+        # Just use the iterator from the contents
+        return iter(self.contents)
+
+    def recursiveChildGenerator(self):
+        if not len(self.contents):
+            raise StopIteration
+        stopNode = self._lastRecursiveChild().next
+        current = self.contents[0]
+        while current is not stopNode:
+            yield current
+            current = current.next
+
+
+# Next, a couple classes to represent queries and their results.
+class SoupStrainer:
+    """Encapsulates a number of ways of matching a markup element (tag or
+    text)."""
+
+    def __init__(self, name=None, attrs={}, text=None, **kwargs):
+        self.name = name
+        if isinstance(attrs, basestring):
+            kwargs['class'] = _match_css_class(attrs)
+            attrs = None
+        if kwargs:
+            if attrs:
+                attrs = attrs.copy()
+                attrs.update(kwargs)
+            else:
+                attrs = kwargs
+        self.attrs = attrs
+        self.text = text
+
+    def __str__(self):
+        if self.text:
+            return self.text
+        else:
+            return "%s|%s" % (self.name, self.attrs)
+
+    def searchTag(self, markupName=None, markupAttrs={}):
+        found = None
+        markup = None
+        if isinstance(markupName, Tag):
+            markup = markupName
+            markupAttrs = markup
+        callFunctionWithTagData = callable(self.name) \
+                                and not isinstance(markupName, Tag)
+
+        if (not self.name) \
+               or callFunctionWithTagData \
+               or (markup and self._matches(markup, self.name)) \
+               or (not markup and self._matches(markupName, self.name)):
+            if callFunctionWithTagData:
+                match = self.name(markupName, markupAttrs)
+            else:
+                match = True
+                markupAttrMap = None
+                for attr, matchAgainst in self.attrs.items():
+                    if not markupAttrMap:
+                         if hasattr(markupAttrs, 'get'):
+                            markupAttrMap = markupAttrs
+                         else:
+                            markupAttrMap = {}
+                            for k,v in markupAttrs:
+                                markupAttrMap[k] = v
+                    attrValue = markupAttrMap.get(attr)
+                    if not self._matches(attrValue, matchAgainst):
+                        match = False
+                        break
+            if match:
+                if markup:
+                    found = markup
+                else:
+                    found = markupName
+        return found
+
+    def search(self, markup):
+        #print 'looking for %s in %s' % (self, markup)
+        found = None
+        # If given a list of items, scan it for a text element that
+        # matches.
+        if hasattr(markup, "__iter__") \
+                and not isinstance(markup, Tag):
+            for element in markup:
+                if isinstance(element, NavigableString) \
+                       and self.search(element):
+                    found = element
+                    break
+        # If it's a Tag, make sure its name or attributes match.
+        # Don't bother with Tags if we're searching for text.
+        elif isinstance(markup, Tag):
+            if not self.text:
+                found = self.searchTag(markup)
+        # If it's text, make sure the text matches.
+        elif isinstance(markup, NavigableString) or \
+                 isinstance(markup, basestring):
+            if self._matches(markup, self.text):
+                found = markup
+        else:
+            raise Exception, "I don't know how to match against a %s" \
+                  % markup.__class__
+        return found
+
+    def _matches(self, markup, matchAgainst):
+        #print "Matching %s against %s" % (markup, matchAgainst)
+        result = False
+        if matchAgainst is True:
+            result = markup is not None
+        elif callable(matchAgainst):
+            result = matchAgainst(markup)
+        else:
+            #Custom match methods take the tag as an argument, but all
+            #other ways of matching match the tag name as a string.
+            if isinstance(markup, Tag):
+                markup = markup.name
+            if markup and not isinstance(markup, basestring):
+                markup = unicode(markup)
+            #Now we know that chunk is either a string, or None.
+            if hasattr(matchAgainst, 'match'):
+                # It's a regexp object.
+                result = markup and matchAgainst.search(markup)
+            elif hasattr(matchAgainst, '__iter__'): # list-like
+                result = markup in matchAgainst
+            elif hasattr(matchAgainst, 'items'):
+                result = markup.has_key(matchAgainst)
+            elif matchAgainst and isinstance(markup, basestring):
+                if isinstance(markup, unicode):
+                    matchAgainst = unicode(matchAgainst)
+                else:
+                    matchAgainst = str(matchAgainst)
+
+            if not result:
+                result = matchAgainst == markup
+        return result
+
+class ResultSet(list):
+    """A ResultSet is just a list that keeps track of the SoupStrainer
+    that created it."""
+    def __init__(self, source):
+        list.__init__([])
+        self.source = source
+
+# Now, some helper functions.
+
+def buildTagMap(default, *args):
+    """Turns a list of maps, lists, or scalars into a single map.
+    Used to build the SELF_CLOSING_TAGS, NESTABLE_TAGS, and
+    NESTING_RESET_TAGS maps out of lists and partial maps."""
+    built = {}
+    for portion in args:
+        if hasattr(portion, 'items'):
+            #It's a map. Merge it.
+            for k,v in portion.items():
+                built[k] = v
+        elif hasattr(portion, '__iter__'): # is a list
+            #It's a list. Map each item to the default.
+            for k in portion:
+                built[k] = default
+        else:
+            #It's a scalar. Map it to the default.
+            built[portion] = default
+    return built
+
+# Now, the parser classes.
+
+class BeautifulStoneSoup(Tag, SGMLParser):
+
+    """This class contains the basic parser and search code. It defines
+    a parser that knows nothing about tag behavior except for the
+    following:
+
+      You can't close a tag without closing all the tags it encloses.
+      That is, "<foo><bar></foo>" actually means
+      "<foo><bar></bar></foo>".
+
+    [Another possible explanation is "<foo><bar /></foo>", but since
+    this class defines no SELF_CLOSING_TAGS, it will never use that
+    explanation.]
+
+    This class is useful for parsing XML or made-up markup languages,
+    or when BeautifulSoup makes an assumption counter to what you were
+    expecting."""
+
+    SELF_CLOSING_TAGS = {}
+    NESTABLE_TAGS = {}
+    RESET_NESTING_TAGS = {}
+    QUOTE_TAGS = {}
+    PRESERVE_WHITESPACE_TAGS = []
+
+    MARKUP_MASSAGE = [(re.compile('(<[^<>]*)/>'),
+                       lambda x: x.group(1) + ' />'),
+                      (re.compile('<!\s+([^<>]*)>'),
+                       lambda x: '<!' + x.group(1) + '>')
+                      ]
+
+    ROOT_TAG_NAME = u'[document]'
+
+    HTML_ENTITIES = "html"
+    XML_ENTITIES = "xml"
+    XHTML_ENTITIES = "xhtml"
+    # TODO: This only exists for backwards-compatibility
+    ALL_ENTITIES = XHTML_ENTITIES
+
+    # Used when determining whether a text node is all whitespace and
+    # can be replaced with a single space. A text node that contains
+    # fancy Unicode spaces (usually non-breaking) should be left
+    # alone.
+    STRIP_ASCII_SPACES = { 9: None, 10: None, 12: None, 13: None, 32: None, }
+
+    def __init__(self, markup="", parseOnlyThese=None, fromEncoding=None,
+                 markupMassage=True, smartQuotesTo=XML_ENTITIES,
+                 convertEntities=None, selfClosingTags=None, isHTML=False):
+        """The Soup object is initialized as the 'root tag', and the
+        provided markup (which can be a string or a file-like object)
+        is fed into the underlying parser.
+
+        sgmllib will process most bad HTML, and the BeautifulSoup
+        class has some tricks for dealing with some HTML that kills
+        sgmllib, but Beautiful Soup can nonetheless choke or lose data
+        if your data uses self-closing tags or declarations
+        incorrectly.
+
+        By default, Beautiful Soup uses regexes to sanitize input,
+        avoiding the vast majority of these problems. If the problems
+        don't apply to you, pass in False for markupMassage, and
+        you'll get better performance.
+
+        The default parser massage techniques fix the two most common
+        instances of invalid HTML that choke sgmllib:
+
+         <br/> (No space between name of closing tag and tag close)
+         <! --Comment--> (Extraneous whitespace in declaration)
+
+        You can pass in a custom list of (RE object, replace method)
+        tuples to get Beautiful Soup to scrub your input the way you
+        want."""
+
+        self.parseOnlyThese = parseOnlyThese
+        self.fromEncoding = fromEncoding
+        self.smartQuotesTo = smartQuotesTo
+        self.convertEntities = convertEntities
+        # Set the rules for how we'll deal with the entities we
+        # encounter
+        if self.convertEntities:
+            # It doesn't make sense to convert encoded characters to
+            # entities even while you're converting entities to Unicode.
+            # Just convert it all to Unicode.
+            self.smartQuotesTo = None
+            if convertEntities == self.HTML_ENTITIES:
+                self.convertXMLEntities = False
+                self.convertHTMLEntities = True
+                self.escapeUnrecognizedEntities = True
+            elif convertEntities == self.XHTML_ENTITIES:
+                self.convertXMLEntities = True
+                self.convertHTMLEntities = True
+                self.escapeUnrecognizedEntities = False
+            elif convertEntities == self.XML_ENTITIES:
+                self.convertXMLEntities = True
+                self.convertHTMLEntities = False
+                self.escapeUnrecognizedEntities = False
+        else:
+            self.convertXMLEntities = False
+            self.convertHTMLEntities = False
+            self.escapeUnrecognizedEntities = False
+
+        self.instanceSelfClosingTags = buildTagMap(None, selfClosingTags)
+        SGMLParser.__init__(self)
+
+        if hasattr(markup, 'read'):        # It's a file-type object.
+            markup = markup.read()
+        self.markup = markup
+        self.markupMassage = markupMassage
+        try:
+            self._feed(isHTML=isHTML)
+        except StopParsing:
+            pass
+        self.markup = None                 # The markup can now be GCed
+
+    def convert_charref(self, name):
+        """This method fixes a bug in Python's SGMLParser."""
+        try:
+            n = int(name)
+        except ValueError:
+            return
+        if not 0 <= n <= 127 : # ASCII ends at 127, not 255
+            return
+        return self.convert_codepoint(n)
+
+    def _feed(self, inDocumentEncoding=None, isHTML=False):
+        # Convert the document to Unicode.
+        markup = self.markup
+        if isinstance(markup, unicode):
+            if not hasattr(self, 'originalEncoding'):
+                self.originalEncoding = None
+        else:
+            dammit = UnicodeDammit\
+                     (markup, [self.fromEncoding, inDocumentEncoding],
+                      smartQuotesTo=self.smartQuotesTo, isHTML=isHTML)
+            markup = dammit.unicode
+            self.originalEncoding = dammit.originalEncoding
+            self.declaredHTMLEncoding = dammit.declaredHTMLEncoding
+        if markup:
+            if self.markupMassage:
+                if not hasattr(self.markupMassage, "__iter__"):
+                    self.markupMassage = self.MARKUP_MASSAGE
+                for fix, m in self.markupMassage:
+                    markup = fix.sub(m, markup)
+                # TODO: We get rid of markupMassage so that the
+                # soup object can be deepcopied later on. Some
+                # Python installations can't copy regexes. If anyone
+                # was relying on the existence of markupMassage, this
+                # might cause problems.
+                del(self.markupMassage)
+        self.reset()
+
+        SGMLParser.feed(self, markup)
+        # Close out any unfinished strings and close all the open tags.
+        self.endData()
+        while self.currentTag.name != self.ROOT_TAG_NAME:
+            self.popTag()
+
+    def __getattr__(self, methodName):
+        """This method routes method call requests to either the SGMLParser
+        superclass or the Tag superclass, depending on the method name."""
+        #print "__getattr__ called on %s.%s" % (self.__class__, methodName)
+
+        if methodName.startswith('start_') or methodName.startswith('end_') \
+               or methodName.startswith('do_'):
+            return SGMLParser.__getattr__(self, methodName)
+        elif not methodName.startswith('__'):
+            return Tag.__getattr__(self, methodName)
+        else:
+            raise AttributeError
+
+    def isSelfClosingTag(self, name):
+        """Returns true iff the given string is the name of a
+        self-closing tag according to this parser."""
+        return self.SELF_CLOSING_TAGS.has_key(name) \
+               or self.instanceSelfClosingTags.has_key(name)
+
+    def reset(self):
+        Tag.__init__(self, self, self.ROOT_TAG_NAME)
+        self.hidden = 1
+        SGMLParser.reset(self)
+        self.currentData = []
+        self.currentTag = None
+        self.tagStack = []
+        self.quoteStack = []
+        self.pushTag(self)
+
+    def popTag(self):
+        tag = self.tagStack.pop()
+
+        #print "Pop", tag.name
+        if self.tagStack:
+            self.currentTag = self.tagStack[-1]
+        return self.currentTag
+
+    def pushTag(self, tag):
+        #print "Push", tag.name
+        if self.currentTag:
+            self.currentTag.contents.append(tag)
+        self.tagStack.append(tag)
+        self.currentTag = self.tagStack[-1]
+
+    def endData(self, containerClass=NavigableString):
+        if self.currentData:
+            currentData = u''.join(self.currentData)
+            if (currentData.translate(self.STRIP_ASCII_SPACES) == '' and
+                not set([tag.name for tag in self.tagStack]).intersection(
+                    self.PRESERVE_WHITESPACE_TAGS)):
+                if '\n' in currentData:
+                    currentData = '\n'
+                else:
+                    currentData = ' '
+            self.currentData = []
+            if self.parseOnlyThese and len(self.tagStack) <= 1 and \
+                   (not self.parseOnlyThese.text or \
+                    not self.parseOnlyThese.search(currentData)):
+                return
+            o = containerClass(currentData)
+            o.setup(self.currentTag, self.previous)
+            if self.previous:
+                self.previous.next = o
+            self.previous = o
+            self.currentTag.contents.append(o)
+
+
+    def _popToTag(self, name, inclusivePop=True):
+        """Pops the tag stack up to and including the most recent
+        instance of the given tag. If inclusivePop is false, pops the tag
+        stack up to but *not* including the most recent instqance of
+        the given tag."""
+        #print "Popping to %s" % name
+        if name == self.ROOT_TAG_NAME:
+            return
+
+        numPops = 0
+        mostRecentTag = None
+        for i in range(len(self.tagStack)-1, 0, -1):
+            if name == self.tagStack[i].name:
+                numPops = len(self.tagStack)-i
+                break
+        if not inclusivePop:
+            numPops = numPops - 1
+
+        for i in range(0, numPops):
+            mostRecentTag = self.popTag()
+        return mostRecentTag
+
+    def _smartPop(self, name):
+
+        """We need to pop up to the previous tag of this type, unless
+        one of this tag's nesting reset triggers comes between this
+        tag and the previous tag of this type, OR unless this tag is a
+        generic nesting trigger and another generic nesting trigger
+        comes between this tag and the previous tag of this type.
+
+        Examples:
+         <p>Foo<b>Bar *<p>* should pop to 'p', not 'b'.
+         <p>Foo<table>Bar *<p>* should pop to 'table', not 'p'.
+         <p>Foo<table><tr>Bar *<p>* should pop to 'tr', not 'p'.
+
+         <li><ul><li> *<li>* should pop to 'ul', not the first 'li'.
+         <tr><table><tr> *<tr>* should pop to 'table', not the first 'tr'
+         <td><tr><td> *<td>* should pop to 'tr', not the first 'td'
+        """
+
+        nestingResetTriggers = self.NESTABLE_TAGS.get(name)
+        isNestable = nestingResetTriggers != None
+        isResetNesting = self.RESET_NESTING_TAGS.has_key(name)
+        popTo = None
+        inclusive = True
+        for i in range(len(self.tagStack)-1, 0, -1):
+            p = self.tagStack[i]
+            if (not p or p.name == name) and not isNestable:
+                #Non-nestable tags get popped to the top or to their
+                #last occurance.
+                popTo = name
+                break
+            if (nestingResetTriggers is not None
+                and p.name in nestingResetTriggers) \
+                or (nestingResetTriggers is None and isResetNesting
+                    and self.RESET_NESTING_TAGS.has_key(p.name)):
+
+                #If we encounter one of the nesting reset triggers
+                #peculiar to this tag, or we encounter another tag
+                #that causes nesting to reset, pop up to but not
+                #including that tag.
+                popTo = p.name
+                inclusive = False
+                break
+            p = p.parent
+        if popTo:
+            self._popToTag(popTo, inclusive)
+
+    def unknown_starttag(self, name, attrs, selfClosing=0):
+        #print "Start tag %s: %s" % (name, attrs)
+        if self.quoteStack:
+            #This is not a real tag.
+            #print "<%s> is not real!" % name
+            attrs = ''.join([' %s="%s"' % (x, y) for x, y in attrs])
+            self.handle_data('<%s%s>' % (name, attrs))
+            return
+        self.endData()
+
+        if not self.isSelfClosingTag(name) and not selfClosing:
+            self._smartPop(name)
+
+        if self.parseOnlyThese and len(self.tagStack) <= 1 \
+               and (self.parseOnlyThese.text or not self.parseOnlyThese.searchTag(name, attrs)):
+            return
+
+        tag = Tag(self, name, attrs, self.currentTag, self.previous)
+        if self.previous:
+            self.previous.next = tag
+        self.previous = tag
+        self.pushTag(tag)
+        if selfClosing or self.isSelfClosingTag(name):
+            self.popTag()
+        if name in self.QUOTE_TAGS:
+            #print "Beginning quote (%s)" % name
+            self.quoteStack.append(name)
+            self.literal = 1
+        return tag
+
+    def unknown_endtag(self, name):
+        #print "End tag %s" % name
+        if self.quoteStack and self.quoteStack[-1] != name:
+            #This is not a real end tag.
+            #print "</%s> is not real!" % name
+            self.handle_data('</%s>' % name)
+            return
+        self.endData()
+        self._popToTag(name)
+        if self.quoteStack and self.quoteStack[-1] == name:
+            self.quoteStack.pop()
+            self.literal = (len(self.quoteStack) > 0)
+
+    def handle_data(self, data):
+        self.currentData.append(data)
+
+    def _toStringSubclass(self, text, subclass):
+        """Adds a certain piece of text to the tree as a NavigableString
+        subclass."""
+        self.endData()
+        self.handle_data(text)
+        self.endData(subclass)
+
+    def handle_pi(self, text):
+        """Handle a processing instruction as a ProcessingInstruction
+        object, possibly one with a %SOUP-ENCODING% slot into which an
+        encoding will be plugged later."""
+        if text[:3] == "xml":
+            text = u"xml version='1.0' encoding='%SOUP-ENCODING%'"
+        self._toStringSubclass(text, ProcessingInstruction)
+
+    def handle_comment(self, text):
+        "Handle comments as Comment objects."
+        self._toStringSubclass(text, Comment)
+
+    def handle_charref(self, ref):
+        "Handle character references as data."
+        if self.convertEntities:
+            data = unichr(int(ref))
+        else:
+            data = '&#%s;' % ref
+        self.handle_data(data)
+
+    def handle_entityref(self, ref):
+        """Handle entity references as data, possibly converting known
+        HTML and/or XML entity references to the corresponding Unicode
+        characters."""
+        data = None
+        if self.convertHTMLEntities:
+            try:
+                data = unichr(name2codepoint[ref])
+            except KeyError:
+                pass
+
+        if not data and self.convertXMLEntities:
+                data = self.XML_ENTITIES_TO_SPECIAL_CHARS.get(ref)
+
+        if not data and self.convertHTMLEntities and \
+            not self.XML_ENTITIES_TO_SPECIAL_CHARS.get(ref):
+                # TODO: We've got a problem here. We're told this is
+                # an entity reference, but it's not an XML entity
+                # reference or an HTML entity reference. Nonetheless,
+                # the logical thing to do is to pass it through as an
+                # unrecognized entity reference.
+                #
+                # Except: when the input is "&carol;" this function
+                # will be called with input "carol". When the input is
+                # "AT&T", this function will be called with input
+                # "T". We have no way of knowing whether a semicolon
+                # was present originally, so we don't know whether
+                # this is an unknown entity or just a misplaced
+                # ampersand.
+                #
+                # The more common case is a misplaced ampersand, so I
+                # escape the ampersand and omit the trailing semicolon.
+                data = "&amp;%s" % ref
+        if not data:
+            # This case is different from the one above, because we
+            # haven't already gone through a supposedly comprehensive
+            # mapping of entities to Unicode characters. We might not
+            # have gone through any mapping at all. So the chances are
+            # very high that this is a real entity, and not a
+            # misplaced ampersand.
+            data = "&%s;" % ref
+        self.handle_data(data)
+
+    def handle_decl(self, data):
+        "Handle DOCTYPEs and the like as Declaration objects."
+        self._toStringSubclass(data, Declaration)
+
+    def parse_declaration(self, i):
+        """Treat a bogus SGML declaration as raw data. Treat a CDATA
+        declaration as a CData object."""
+        j = None
+        if self.rawdata[i:i+9] == '<![CDATA[':
+             k = self.rawdata.find(']]>', i)
+             if k == -1:
+                 k = len(self.rawdata)
+             data = self.rawdata[i+9:k]
+             j = k+3
+             self._toStringSubclass(data, CData)
+        else:
+            try:
+                j = SGMLParser.parse_declaration(self, i)
+            except SGMLParseError:
+                toHandle = self.rawdata[i:]
+                self.handle_data(toHandle)
+                j = i + len(toHandle)
+        return j
+
+class BeautifulSoup(BeautifulStoneSoup):
+
+    """This parser knows the following facts about HTML:
+
+    * Some tags have no closing tag and should be interpreted as being
+      closed as soon as they are encountered.
+
+    * The text inside some tags (ie. 'script') may contain tags which
+      are not really part of the document and which should be parsed
+      as text, not tags. If you want to parse the text as tags, you can
+      always fetch it and parse it explicitly.
+
+    * Tag nesting rules:
+
+      Most tags can't be nested at all. For instance, the occurance of
+      a <p> tag should implicitly close the previous <p> tag.
+
+       <p>Para1<p>Para2
+        should be transformed into:
+       <p>Para1</p><p>Para2
+
+      Some tags can be nested arbitrarily. For instance, the occurance
+      of a <blockquote> tag should _not_ implicitly close the previous
+      <blockquote> tag.
+
+       Alice said: <blockquote>Bob said: <blockquote>Blah
+        should NOT be transformed into:
+       Alice said: <blockquote>Bob said: </blockquote><blockquote>Blah
+
+      Some tags can be nested, but the nesting is reset by the
+      interposition of other tags. For instance, a <tr> tag should
+      implicitly close the previous <tr> tag within the same <table>,
+      but not close a <tr> tag in another table.
+
+       <table><tr>Blah<tr>Blah
+        should be transformed into:
+       <table><tr>Blah</tr><tr>Blah
+        but,
+       <tr>Blah<table><tr>Blah
+        should NOT be transformed into
+       <tr>Blah<table></tr><tr>Blah
+
+    Differing assumptions about tag nesting rules are a major source
+    of problems with the BeautifulSoup class. If BeautifulSoup is not
+    treating as nestable a tag your page author treats as nestable,
+    try ICantBelieveItsBeautifulSoup, MinimalSoup, or
+    BeautifulStoneSoup before writing your own subclass."""
+
+    def __init__(self, *args, **kwargs):
+        if not kwargs.has_key('smartQuotesTo'):
+            kwargs['smartQuotesTo'] = self.HTML_ENTITIES
+        kwargs['isHTML'] = True
+        BeautifulStoneSoup.__init__(self, *args, **kwargs)
+
+    SELF_CLOSING_TAGS = buildTagMap(None,
+                                    ('br' , 'hr', 'input', 'img', 'meta',
+                                    'spacer', 'link', 'frame', 'base', 'col'))
+
+    PRESERVE_WHITESPACE_TAGS = set(['pre', 'textarea'])
+
+    QUOTE_TAGS = {'script' : None, 'textarea' : None}
+
+    #According to the HTML standard, each of these inline tags can
+    #contain another tag of the same type. Furthermore, it's common
+    #to actually use these tags this way.
+    NESTABLE_INLINE_TAGS = ('span', 'font', 'q', 'object', 'bdo', 'sub', 'sup',
+                            'center')
+
+    #According to the HTML standard, these block tags can contain
+    #another tag of the same type. Furthermore, it's common
+    #to actually use these tags this way.
+    NESTABLE_BLOCK_TAGS = ('blockquote', 'div', 'fieldset', 'ins', 'del')
+
+    #Lists can contain other lists, but there are restrictions.
+    NESTABLE_LIST_TAGS = { 'ol' : [],
+                           'ul' : [],
+                           'li' : ['ul', 'ol'],
+                           'dl' : [],
+                           'dd' : ['dl'],
+                           'dt' : ['dl'] }
+
+    #Tables can contain other tables, but there are restrictions.
+    NESTABLE_TABLE_TAGS = {'table' : [],
+                           'tr' : ['table', 'tbody', 'tfoot', 'thead'],
+                           'td' : ['tr'],
+                           'th' : ['tr'],
+                           'thead' : ['table'],
+                           'tbody' : ['table'],
+                           'tfoot' : ['table'],
+                           }
+
+    NON_NESTABLE_BLOCK_TAGS = ('address', 'form', 'p', 'pre')
+
+    #If one of these tags is encountered, all tags up to the next tag of
+    #this type are popped.
+    RESET_NESTING_TAGS = buildTagMap(None, NESTABLE_BLOCK_TAGS, 'noscript',
+                                     NON_NESTABLE_BLOCK_TAGS,
+                                     NESTABLE_LIST_TAGS,
+                                     NESTABLE_TABLE_TAGS)
+
+    NESTABLE_TAGS = buildTagMap([], NESTABLE_INLINE_TAGS, NESTABLE_BLOCK_TAGS,
+                                NESTABLE_LIST_TAGS, NESTABLE_TABLE_TAGS)
+
+    # Used to detect the charset in a META tag; see start_meta
+    CHARSET_RE = re.compile("((^|;)\s*charset=)([^;]*)", re.M)
+
+    def start_meta(self, attrs):
+        """Beautiful Soup can detect a charset included in a META tag,
+        try to convert the document to that charset, and re-parse the
+        document from the beginning."""
+        httpEquiv = None
+        contentType = None
+        contentTypeIndex = None
+        tagNeedsEncodingSubstitution = False
+
+        for i in range(0, len(attrs)):
+            key, value = attrs[i]
+            key = key.lower()
+            if key == 'http-equiv':
+                httpEquiv = value
+            elif key == 'content':
+                contentType = value
+                contentTypeIndex = i
+
+        if httpEquiv and contentType: # It's an interesting meta tag.
+            match = self.CHARSET_RE.search(contentType)
+            if match:
+                if (self.declaredHTMLEncoding is not None or
+                    self.originalEncoding == self.fromEncoding):
+                    # An HTML encoding was sniffed while converting
+                    # the document to Unicode, or an HTML encoding was
+                    # sniffed during a previous pass through the
+                    # document, or an encoding was specified
+                    # explicitly and it worked. Rewrite the meta tag.
+                    def rewrite(match):
+                        return match.group(1) + "%SOUP-ENCODING%"
+                    newAttr = self.CHARSET_RE.sub(rewrite, contentType)
+                    attrs[contentTypeIndex] = (attrs[contentTypeIndex][0],
+                                               newAttr)
+                    tagNeedsEncodingSubstitution = True
+                else:
+                    # This is our first pass through the document.
+                    # Go through it again with the encoding information.
+                    newCharset = match.group(3)
+                    if newCharset and newCharset != self.originalEncoding:
+                        self.declaredHTMLEncoding = newCharset
+                        self._feed(self.declaredHTMLEncoding)
+                        raise StopParsing
+                    pass
+        tag = self.unknown_starttag("meta", attrs)
+        if tag and tagNeedsEncodingSubstitution:
+            tag.containsSubstitutions = True
+
+class StopParsing(Exception):
+    pass
+
+class ICantBelieveItsBeautifulSoup(BeautifulSoup):
+
+    """The BeautifulSoup class is oriented towards skipping over
+    common HTML errors like unclosed tags. However, sometimes it makes
+    errors of its own. For instance, consider this fragment:
+
+     <b>Foo<b>Bar</b></b>
+
+    This is perfectly valid (if bizarre) HTML. However, the
+    BeautifulSoup class will implicitly close the first b tag when it
+    encounters the second 'b'. It will think the author wrote
+    "<b>Foo<b>Bar", and didn't close the first 'b' tag, because
+    there's no real-world reason to bold something that's already
+    bold. When it encounters '</b></b>' it will close two more 'b'
+    tags, for a grand total of three tags closed instead of two. This
+    can throw off the rest of your document structure. The same is
+    true of a number of other tags, listed below.
+
+    It's much more common for someone to forget to close a 'b' tag
+    than to actually use nested 'b' tags, and the BeautifulSoup class
+    handles the common case. This class handles the not-co-common
+    case: where you can't believe someone wrote what they did, but
+    it's valid HTML and BeautifulSoup screwed up by assuming it
+    wouldn't be."""
+
+    I_CANT_BELIEVE_THEYRE_NESTABLE_INLINE_TAGS = \
+     ('em', 'big', 'i', 'small', 'tt', 'abbr', 'acronym', 'strong',
+      'cite', 'code', 'dfn', 'kbd', 'samp', 'strong', 'var', 'b',
+      'big')
+
+    I_CANT_BELIEVE_THEYRE_NESTABLE_BLOCK_TAGS = ('noscript',)
+
+    NESTABLE_TAGS = buildTagMap([], BeautifulSoup.NESTABLE_TAGS,
+                                I_CANT_BELIEVE_THEYRE_NESTABLE_BLOCK_TAGS,
+                                I_CANT_BELIEVE_THEYRE_NESTABLE_INLINE_TAGS)
+
+class MinimalSoup(BeautifulSoup):
+    """The MinimalSoup class is for parsing HTML that contains
+    pathologically bad markup. It makes no assumptions about tag
+    nesting, but it does know which tags are self-closing, that
+    <script> tags contain Javascript and should not be parsed, that
+    META tags may contain encoding information, and so on.
+
+    This also makes it better for subclassing than BeautifulStoneSoup
+    or BeautifulSoup."""
+
+    RESET_NESTING_TAGS = buildTagMap('noscript')
+    NESTABLE_TAGS = {}
+
+class BeautifulSOAP(BeautifulStoneSoup):
+    """This class will push a tag with only a single string child into
+    the tag's parent as an attribute. The attribute's name is the tag
+    name, and the value is the string child. An example should give
+    the flavor of the change:
+
+    <foo><bar>baz</bar></foo>
+     =>
+    <foo bar="baz"><bar>baz</bar></foo>
+
+    You can then access fooTag['bar'] instead of fooTag.barTag.string.
+
+    This is, of course, useful for scraping structures that tend to
+    use subelements instead of attributes, such as SOAP messages. Note
+    that it modifies its input, so don't print the modified version
+    out.
+
+    I'm not sure how many people really want to use this class; let me
+    know if you do. Mainly I like the name."""
+
+    def popTag(self):
+        if len(self.tagStack) > 1:
+            tag = self.tagStack[-1]
+            parent = self.tagStack[-2]
+            parent._getAttrMap()
+            if (isinstance(tag, Tag) and len(tag.contents) == 1 and
+                isinstance(tag.contents[0], NavigableString) and
+                not parent.attrMap.has_key(tag.name)):
+                parent[tag.name] = tag.contents[0]
+        BeautifulStoneSoup.popTag(self)
+
+#Enterprise class names! It has come to our attention that some people
+#think the names of the Beautiful Soup parser classes are too silly
+#and "unprofessional" for use in enterprise screen-scraping. We feel
+#your pain! For such-minded folk, the Beautiful Soup Consortium And
+#All-Night Kosher Bakery recommends renaming this file to
+#"RobustParser.py" (or, in cases of extreme enterprisiness,
+#"RobustParserBeanInterface.class") and using the following
+#enterprise-friendly class aliases:
+class RobustXMLParser(BeautifulStoneSoup):
+    pass
+class RobustHTMLParser(BeautifulSoup):
+    pass
+class RobustWackAssHTMLParser(ICantBelieveItsBeautifulSoup):
+    pass
+class RobustInsanelyWackAssHTMLParser(MinimalSoup):
+    pass
+class SimplifyingSOAPParser(BeautifulSOAP):
+    pass
+
+######################################################
+#
+# Bonus library: Unicode, Dammit
+#
+# This class forces XML data into a standard format (usually to UTF-8
+# or Unicode).  It is heavily based on code from Mark Pilgrim's
+# Universal Feed Parser. It does not rewrite the XML or HTML to
+# reflect a new encoding: that happens in BeautifulStoneSoup.handle_pi
+# (XML) and BeautifulSoup.start_meta (HTML).
+
+# Autodetects character encodings.
+# Download from http://chardet.feedparser.org/
+try:
+    import chardet
+#    import chardet.constants
+#    chardet.constants._debug = 1
+except ImportError:
+    chardet = None
+
+# cjkcodecs and iconv_codec make Python know about more character encodings.
+# Both are available from http://cjkpython.i18n.org/
+# They're built in if you use Python 2.4.
+try:
+    import cjkcodecs.aliases
+except ImportError:
+    pass
+try:
+    import iconv_codec
+except ImportError:
+    pass
+
+class UnicodeDammit:
+    """A class for detecting the encoding of a *ML document and
+    converting it to a Unicode string. If the source encoding is
+    windows-1252, can replace MS smart quotes with their HTML or XML
+    equivalents."""
+
+    # This dictionary maps commonly seen values for "charset" in HTML
+    # meta tags to the corresponding Python codec names. It only covers
+    # values that aren't in Python's aliases and can't be determined
+    # by the heuristics in find_codec.
+    CHARSET_ALIASES = { "macintosh" : "mac-roman",
+                        "x-sjis" : "shift-jis" }
+
+    def __init__(self, markup, overrideEncodings=[],
+                 smartQuotesTo='xml', isHTML=False):
+        self.declaredHTMLEncoding = None
+        self.markup, documentEncoding, sniffedEncoding = \
+                     self._detectEncoding(markup, isHTML)
+        self.smartQuotesTo = smartQuotesTo
+        self.triedEncodings = []
+        if markup == '' or isinstance(markup, unicode):
+            self.originalEncoding = None
+            self.unicode = unicode(markup)
+            return
+
+        u = None
+        for proposedEncoding in overrideEncodings:
+            u = self._convertFrom(proposedEncoding)
+            if u: break
+        if not u:
+            for proposedEncoding in (documentEncoding, sniffedEncoding):
+                u = self._convertFrom(proposedEncoding)
+                if u: break
+
+        # If no luck and we have auto-detection library, try that:
+        if not u and chardet and not isinstance(self.markup, unicode):
+            u = self._convertFrom(chardet.detect(self.markup)['encoding'])
+
+        # As a last resort, try utf-8 and windows-1252:
+        if not u:
+            for proposed_encoding in ("utf-8", "windows-1252"):
+                u = self._convertFrom(proposed_encoding)
+                if u: break
+
+        self.unicode = u
+        if not u: self.originalEncoding = None
+
+    def _subMSChar(self, orig):
+        """Changes a MS smart quote character to an XML or HTML
+        entity."""
+        sub = self.MS_CHARS.get(orig)
+        if isinstance(sub, tuple):
+            if self.smartQuotesTo == 'xml':
+                sub = '&#x%s;' % sub[1]
+            else:
+                sub = '&%s;' % sub[0]
+        return sub
+
+    def _convertFrom(self, proposed):
+        proposed = self.find_codec(proposed)
+        if not proposed or proposed in self.triedEncodings:
+            return None
+        self.triedEncodings.append(proposed)
+        markup = self.markup
+
+        # Convert smart quotes to HTML if coming from an encoding
+        # that might have them.
+        if self.smartQuotesTo and proposed.lower() in("windows-1252",
+                                                      "iso-8859-1",
+                                                      "iso-8859-2"):
+            markup = re.compile("([\x80-\x9f])").sub \
+                     (lambda(x): self._subMSChar(x.group(1)),
+                      markup)
+
+        try:
+            # print "Trying to convert document to %s" % proposed
+            u = self._toUnicode(markup, proposed)
+            self.markup = u
+            self.originalEncoding = proposed
+        except Exception, e:
+            # print "That didn't work!"
+            # print e
+            return None
+        #print "Correct encoding: %s" % proposed
+        return self.markup
+
+    def _toUnicode(self, data, encoding):
+        '''Given a string and its encoding, decodes the string into Unicode.
+        %encoding is a string recognized by encodings.aliases'''
+
+        # strip Byte Order Mark (if present)
+        if (len(data) >= 4) and (data[:2] == '\xfe\xff') \
+               and (data[2:4] != '\x00\x00'):
+            encoding = 'utf-16be'
+            data = data[2:]
+        elif (len(data) >= 4) and (data[:2] == '\xff\xfe') \
+                 and (data[2:4] != '\x00\x00'):
+            encoding = 'utf-16le'
+            data = data[2:]
+        elif data[:3] == '\xef\xbb\xbf':
+            encoding = 'utf-8'
+            data = data[3:]
+        elif data[:4] == '\x00\x00\xfe\xff':
+            encoding = 'utf-32be'
+            data = data[4:]
+        elif data[:4] == '\xff\xfe\x00\x00':
+            encoding = 'utf-32le'
+            data = data[4:]
+        newdata = unicode(data, encoding)
+        return newdata
+
+    def _detectEncoding(self, xml_data, isHTML=False):
+        """Given a document, tries to detect its XML encoding."""
+        xml_encoding = sniffed_xml_encoding = None
+        try:
+            if xml_data[:4] == '\x4c\x6f\xa7\x94':
+                # EBCDIC
+                xml_data = self._ebcdic_to_ascii(xml_data)
+            elif xml_data[:4] == '\x00\x3c\x00\x3f':
+                # UTF-16BE
+                sniffed_xml_encoding = 'utf-16be'
+                xml_data = unicode(xml_data, 'utf-16be').encode('utf-8')
+            elif (len(xml_data) >= 4) and (xml_data[:2] == '\xfe\xff') \
+                     and (xml_data[2:4] != '\x00\x00'):
+                # UTF-16BE with BOM
+                sniffed_xml_encoding = 'utf-16be'
+                xml_data = unicode(xml_data[2:], 'utf-16be').encode('utf-8')
+            elif xml_data[:4] == '\x3c\x00\x3f\x00':
+                # UTF-16LE
+                sniffed_xml_encoding = 'utf-16le'
+                xml_data = unicode(xml_data, 'utf-16le').encode('utf-8')
+            elif (len(xml_data) >= 4) and (xml_data[:2] == '\xff\xfe') and \
+                     (xml_data[2:4] != '\x00\x00'):
+                # UTF-16LE with BOM
+                sniffed_xml_encoding = 'utf-16le'
+                xml_data = unicode(xml_data[2:], 'utf-16le').encode('utf-8')
+            elif xml_data[:4] == '\x00\x00\x00\x3c':
+                # UTF-32BE
+                sniffed_xml_encoding = 'utf-32be'
+                xml_data = unicode(xml_data, 'utf-32be').encode('utf-8')
+            elif xml_data[:4] == '\x3c\x00\x00\x00':
+                # UTF-32LE
+                sniffed_xml_encoding = 'utf-32le'
+                xml_data = unicode(xml_data, 'utf-32le').encode('utf-8')
+            elif xml_data[:4] == '\x00\x00\xfe\xff':
+                # UTF-32BE with BOM
+                sniffed_xml_encoding = 'utf-32be'
+                xml_data = unicode(xml_data[4:], 'utf-32be').encode('utf-8')
+            elif xml_data[:4] == '\xff\xfe\x00\x00':
+                # UTF-32LE with BOM
+                sniffed_xml_encoding = 'utf-32le'
+                xml_data = unicode(xml_data[4:], 'utf-32le').encode('utf-8')
+            elif xml_data[:3] == '\xef\xbb\xbf':
+                # UTF-8 with BOM
+                sniffed_xml_encoding = 'utf-8'
+                xml_data = unicode(xml_data[3:], 'utf-8').encode('utf-8')
+            else:
+                sniffed_xml_encoding = 'ascii'
+                pass
+        except:
+            xml_encoding_match = None
+        xml_encoding_match = re.compile(
+            '^<\?.*encoding=[\'"](.*?)[\'"].*\?>').match(xml_data)
+        if not xml_encoding_match and isHTML:
+            regexp = re.compile('<\s*meta[^>]+charset=([^>]*?)[;\'">]', re.I)
+            xml_encoding_match = regexp.search(xml_data)
+        if xml_encoding_match is not None:
+            xml_encoding = xml_encoding_match.groups()[0].lower()
+            if isHTML:
+                self.declaredHTMLEncoding = xml_encoding
+            if sniffed_xml_encoding and \
+               (xml_encoding in ('iso-10646-ucs-2', 'ucs-2', 'csunicode',
+                                 'iso-10646-ucs-4', 'ucs-4', 'csucs4',
+                                 'utf-16', 'utf-32', 'utf_16', 'utf_32',
+                                 'utf16', 'u16')):
+                xml_encoding = sniffed_xml_encoding
+        return xml_data, xml_encoding, sniffed_xml_encoding
+
+
+    def find_codec(self, charset):
+        return self._codec(self.CHARSET_ALIASES.get(charset, charset)) \
+               or (charset and self._codec(charset.replace("-", ""))) \
+               or (charset and self._codec(charset.replace("-", "_"))) \
+               or charset
+
+    def _codec(self, charset):
+        if not charset: return charset
+        codec = None
+        try:
+            codecs.lookup(charset)
+            codec = charset
+        except (LookupError, ValueError):
+            pass
+        return codec
+
+    EBCDIC_TO_ASCII_MAP = None
+    def _ebcdic_to_ascii(self, s):
+        c = self.__class__
+        if not c.EBCDIC_TO_ASCII_MAP:
+            emap = (0,1,2,3,156,9,134,127,151,141,142,11,12,13,14,15,
+                    16,17,18,19,157,133,8,135,24,25,146,143,28,29,30,31,
+                    128,129,130,131,132,10,23,27,136,137,138,139,140,5,6,7,
+                    144,145,22,147,148,149,150,4,152,153,154,155,20,21,158,26,
+                    32,160,161,162,163,164,165,166,167,168,91,46,60,40,43,33,
+                    38,169,170,171,172,173,174,175,176,177,93,36,42,41,59,94,
+                    45,47,178,179,180,181,182,183,184,185,124,44,37,95,62,63,
+                    186,187,188,189,190,191,192,193,194,96,58,35,64,39,61,34,
+                    195,97,98,99,100,101,102,103,104,105,196,197,198,199,200,
+                    201,202,106,107,108,109,110,111,112,113,114,203,204,205,
+                    206,207,208,209,126,115,116,117,118,119,120,121,122,210,
+                    211,212,213,214,215,216,217,218,219,220,221,222,223,224,
+                    225,226,227,228,229,230,231,123,65,66,67,68,69,70,71,72,
+                    73,232,233,234,235,236,237,125,74,75,76,77,78,79,80,81,
+                    82,238,239,240,241,242,243,92,159,83,84,85,86,87,88,89,
+                    90,244,245,246,247,248,249,48,49,50,51,52,53,54,55,56,57,
+                    250,251,252,253,254,255)
+            import string
+            c.EBCDIC_TO_ASCII_MAP = string.maketrans( \
+            ''.join(map(chr, range(256))), ''.join(map(chr, emap)))
+        return s.translate(c.EBCDIC_TO_ASCII_MAP)
+
+    MS_CHARS = { '\x80' : ('euro', '20AC'),
+                 '\x81' : ' ',
+                 '\x82' : ('sbquo', '201A'),
+                 '\x83' : ('fnof', '192'),
+                 '\x84' : ('bdquo', '201E'),
+                 '\x85' : ('hellip', '2026'),
+                 '\x86' : ('dagger', '2020'),
+                 '\x87' : ('Dagger', '2021'),
+                 '\x88' : ('circ', '2C6'),
+                 '\x89' : ('permil', '2030'),
+                 '\x8A' : ('Scaron', '160'),
+                 '\x8B' : ('lsaquo', '2039'),
+                 '\x8C' : ('OElig', '152'),
+                 '\x8D' : '?',
+                 '\x8E' : ('#x17D', '17D'),
+                 '\x8F' : '?',
+                 '\x90' : '?',
+                 '\x91' : ('lsquo', '2018'),
+                 '\x92' : ('rsquo', '2019'),
+                 '\x93' : ('ldquo', '201C'),
+                 '\x94' : ('rdquo', '201D'),
+                 '\x95' : ('bull', '2022'),
+                 '\x96' : ('ndash', '2013'),
+                 '\x97' : ('mdash', '2014'),
+                 '\x98' : ('tilde', '2DC'),
+                 '\x99' : ('trade', '2122'),
+                 '\x9a' : ('scaron', '161'),
+                 '\x9b' : ('rsaquo', '203A'),
+                 '\x9c' : ('oelig', '153'),
+                 '\x9d' : '?',
+                 '\x9e' : ('#x17E', '17E'),
+                 '\x9f' : ('Yuml', ''),}
+
+#######################################################################
+
+
+#By default, act as an HTML pretty-printer.
+if __name__ == '__main__':
+    import sys
+    soup = BeautifulSoup(sys.stdin)
+    print soup.prettify()
diff --git a/module/lib/__init__.py b/module/lib/__init__.py
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/module/lib/__init__.py
diff --git a/module/lib/feedparser.py b/module/lib/feedparser.py
new file mode 100644
index 000000000..1fd5cfc3e
--- /dev/null
+++ b/module/lib/feedparser.py
@@ -0,0 +1,3885 @@
+#!/usr/bin/env python
+"""Universal feed parser
+
+Handles RSS 0.9x, RSS 1.0, RSS 2.0, CDF, Atom 0.3, and Atom 1.0 feeds
+
+Visit http://feedparser.org/ for the latest version
+Visit http://feedparser.org/docs/ for the latest documentation
+
+Required: Python 2.4 or later
+Recommended: CJKCodecs and iconv_codec <http://cjkpython.i18n.org/>
+"""
+
+__version__ = "5.0"
+__license__ = """Copyright (c) 2002-2008, Mark Pilgrim, All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice,
+  this list of conditions and the following disclaimer.
+* Redistributions in binary form must reproduce the above copyright notice,
+  this list of conditions and the following disclaimer in the documentation
+  and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS'
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE."""
+__author__ = "Mark Pilgrim <http://diveintomark.org/>"
+__contributors__ = ["Jason Diamond <http://injektilo.org/>",
+                    "John Beimler <http://john.beimler.org/>",
+                    "Fazal Majid <http://www.majid.info/mylos/weblog/>",
+                    "Aaron Swartz <http://aaronsw.com/>",
+                    "Kevin Marks <http://epeus.blogspot.com/>",
+                    "Sam Ruby <http://intertwingly.net/>",
+                    "Ade Oshineye <http://blog.oshineye.com/>",
+                    "Martin Pool <http://sourcefrog.net/>",
+                    "Kurt McKee <http://kurtmckee.org/>"]
+_debug = 0
+
+# HTTP "User-Agent" header to send to servers when downloading feeds.
+# If you are embedding feedparser in a larger application, you should
+# change this to your application name and URL.
+USER_AGENT = "UniversalFeedParser/%s +http://feedparser.org/" % __version__
+
+# HTTP "Accept" header to send to servers when downloading feeds.  If you don't
+# want to send an Accept header, set this to None.
+ACCEPT_HEADER = "application/atom+xml,application/rdf+xml,application/rss+xml,application/x-netcdf,application/xml;q=0.9,text/xml;q=0.2,*/*;q=0.1"
+
+# List of preferred XML parsers, by SAX driver name.  These will be tried first,
+# but if they're not installed, Python will keep searching through its own list
+# of pre-installed parsers until it finds one that supports everything we need.
+PREFERRED_XML_PARSERS = ["drv_libxml2"]
+
+# If you want feedparser to automatically run HTML markup through HTML Tidy, set
+# this to 1.  Requires mxTidy <http://www.egenix.com/files/python/mxTidy.html>
+# or utidylib <http://utidylib.berlios.de/>.
+TIDY_MARKUP = 0
+
+# List of Python interfaces for HTML Tidy, in order of preference.  Only useful
+# if TIDY_MARKUP = 1
+PREFERRED_TIDY_INTERFACES = ["uTidy", "mxTidy"]
+
+# If you want feedparser to automatically resolve all relative URIs, set this
+# to 1.
+RESOLVE_RELATIVE_URIS = 1
+
+# If you want feedparser to automatically sanitize all potentially unsafe
+# HTML content, set this to 1.
+SANITIZE_HTML = 1
+
+# ---------- Python 3 modules (make it work if possible) ----------
+try:
+    import rfc822
+except ImportError:
+    from email import _parseaddr as rfc822
+
+try:
+    # Python 3.1 introduces bytes.maketrans and simultaneously
+    # deprecates string.maketrans; use bytes.maketrans if possible
+    _maketrans = bytes.maketrans
+except (NameError, AttributeError):
+    import string
+    _maketrans = string.maketrans
+    
+# base64 support for Atom feeds that contain embedded binary data
+try:
+    import base64, binascii
+    # Python 3.1 deprecates decodestring in favor of decodebytes
+    _base64decode = getattr(base64, 'decodebytes', base64.decodestring)
+except:
+    base64 = binascii = None
+
+def _s2bytes(s):
+  # Convert a UTF-8 str to bytes if the interpreter is Python 3
+  try:
+    return bytes(s, 'utf8')
+  except (NameError, TypeError):
+    # In Python 2.5 and below, bytes doesn't exist (NameError)
+    # In Python 2.6 and above, bytes and str are the same (TypeError)
+    return s
+
+def _l2bytes(l):
+  # Convert a list of ints to bytes if the interpreter is Python 3
+  try:
+    if bytes is not str:
+      # In Python 2.6 and above, this call won't raise an exception
+      # but it will return bytes([65]) as '[65]' instead of 'A'
+      return bytes(l)
+    raise NameError
+  except NameError:
+    return ''.join(map(chr, l))
+
+# If you want feedparser to allow all URL schemes, set this to ()
+# List culled from Python's urlparse documentation at:
+#   http://docs.python.org/library/urlparse.html
+# as well as from "URI scheme" at Wikipedia:
+#   https://secure.wikimedia.org/wikipedia/en/wiki/URI_scheme
+# Many more will likely need to be added!
+ACCEPTABLE_URI_SCHEMES = (
+    'file', 'ftp', 'gopher', 'h323', 'hdl', 'http', 'https', 'imap', 'mailto',
+    'mms', 'news', 'nntp', 'prospero', 'rsync', 'rtsp', 'rtspu', 'sftp',
+    'shttp', 'sip', 'sips', 'snews', 'svn', 'svn+ssh', 'telnet', 'wais',
+    # Additional common-but-unofficial schemes
+    'aim', 'callto', 'cvs', 'facetime', 'feed', 'git', 'gtalk', 'irc', 'ircs',
+    'irc6', 'itms', 'mms', 'msnim', 'skype', 'ssh', 'smb', 'svn', 'ymsg',
+)
+#ACCEPTABLE_URI_SCHEMES = ()
+
+# ---------- required modules (should come with any Python distribution) ----------
+import sgmllib, re, sys, copy, urlparse, time, types, cgi, urllib, urllib2, datetime
+try:
+    from io import BytesIO as _StringIO
+except ImportError:
+    try:
+        from cStringIO import StringIO as _StringIO
+    except:
+        from StringIO import StringIO as _StringIO
+
+# ---------- optional modules (feedparser will work without these, but with reduced functionality) ----------
+
+# gzip is included with most Python distributions, but may not be available if you compiled your own
+try:
+    import gzip
+except:
+    gzip = None
+try:
+    import zlib
+except:
+    zlib = None
+
+# If a real XML parser is available, feedparser will attempt to use it.  feedparser has
+# been tested with the built-in SAX parser, PyXML, and libxml2.  On platforms where the
+# Python distribution does not come with an XML parser (such as Mac OS X 10.2 and some
+# versions of FreeBSD), feedparser will quietly fall back on regex-based parsing.
+try:
+    import xml.sax
+    xml.sax.make_parser(PREFERRED_XML_PARSERS) # test for valid parsers
+    from xml.sax.saxutils import escape as _xmlescape
+    _XML_AVAILABLE = 1
+except:
+    _XML_AVAILABLE = 0
+    def _xmlescape(data,entities={}):
+        data = data.replace('&', '&amp;')
+        data = data.replace('>', '&gt;')
+        data = data.replace('<', '&lt;')
+        for char, entity in entities:
+            data = data.replace(char, entity)
+        return data
+
+# cjkcodecs and iconv_codec provide support for more character encodings.
+# Both are available from http://cjkpython.i18n.org/
+try:
+    import cjkcodecs.aliases
+except:
+    pass
+try:
+    import iconv_codec
+except:
+    pass
+
+# chardet library auto-detects character encodings
+# Download from http://chardet.feedparser.org/
+try:
+    import chardet
+    if _debug:
+        import chardet.constants
+        chardet.constants._debug = 1
+except:
+    chardet = None
+
+# reversable htmlentitydefs mappings for Python 2.2
+try:
+  from htmlentitydefs import name2codepoint, codepoint2name
+except:
+  import htmlentitydefs
+  name2codepoint={}
+  codepoint2name={}
+  for (name,codepoint) in htmlentitydefs.entitydefs.iteritems():
+    if codepoint.startswith('&#'): codepoint=unichr(int(codepoint[2:-1]))
+    name2codepoint[name]=ord(codepoint)
+    codepoint2name[ord(codepoint)]=name
+
+# BeautifulSoup parser used for parsing microformats from embedded HTML content
+# http://www.crummy.com/software/BeautifulSoup/
+# feedparser is tested with BeautifulSoup 3.0.x, but it might work with the
+# older 2.x series.  If it doesn't, and you can figure out why, I'll accept a
+# patch and modify the compatibility statement accordingly.
+try:
+    import BeautifulSoup
+except:
+    BeautifulSoup = None
+
+# ---------- don't touch these ----------
+class ThingsNobodyCaresAboutButMe(Exception): pass
+class CharacterEncodingOverride(ThingsNobodyCaresAboutButMe): pass
+class CharacterEncodingUnknown(ThingsNobodyCaresAboutButMe): pass
+class NonXMLContentType(ThingsNobodyCaresAboutButMe): pass
+class UndeclaredNamespace(Exception): pass
+
+sgmllib.tagfind = re.compile('[a-zA-Z][-_.:a-zA-Z0-9]*')
+sgmllib.special = re.compile('<!')
+sgmllib.charref = re.compile('&#(\d+|[xX][0-9a-fA-F]+);')
+
+if sgmllib.endbracket.search(' <').start(0):
+    class EndBracketRegEx:
+        def __init__(self):
+            # Overriding the built-in sgmllib.endbracket regex allows the
+            # parser to find angle brackets embedded in element attributes.
+            self.endbracket = re.compile('''([^'"<>]|"[^"]*"(?=>|/|\s|\w+=)|'[^']*'(?=>|/|\s|\w+=))*(?=[<>])|.*?(?=[<>])''')
+        def search(self,string,index=0):
+            match = self.endbracket.match(string,index)
+            if match is not None:
+                # Returning a new object in the calling thread's context
+                # resolves a thread-safety.
+                return EndBracketMatch(match) 
+            return None
+    class EndBracketMatch:
+        def __init__(self, match):
+            self.match = match
+        def start(self, n):
+            return self.match.end(n)
+    sgmllib.endbracket = EndBracketRegEx()
+
+SUPPORTED_VERSIONS = {'': 'unknown',
+                      'rss090': 'RSS 0.90',
+                      'rss091n': 'RSS 0.91 (Netscape)',
+                      'rss091u': 'RSS 0.91 (Userland)',
+                      'rss092': 'RSS 0.92',
+                      'rss093': 'RSS 0.93',
+                      'rss094': 'RSS 0.94',
+                      'rss20': 'RSS 2.0',
+                      'rss10': 'RSS 1.0',
+                      'rss': 'RSS (unknown version)',
+                      'atom01': 'Atom 0.1',
+                      'atom02': 'Atom 0.2',
+                      'atom03': 'Atom 0.3',
+                      'atom10': 'Atom 1.0',
+                      'atom': 'Atom (unknown version)',
+                      'cdf': 'CDF',
+                      'hotrss': 'Hot RSS'
+                      }
+
+try:
+    UserDict = dict
+except NameError:
+    # Python 2.1 does not have dict
+    from UserDict import UserDict
+    def dict(aList):
+        rc = {}
+        for k, v in aList:
+            rc[k] = v
+        return rc
+
+class FeedParserDict(UserDict):
+    keymap = {'channel': 'feed',
+              'items': 'entries',
+              'guid': 'id',
+              'date': 'updated',
+              'date_parsed': 'updated_parsed',
+              'description': ['summary', 'subtitle'],
+              'url': ['href'],
+              'modified': 'updated',
+              'modified_parsed': 'updated_parsed',
+              'issued': 'published',
+              'issued_parsed': 'published_parsed',
+              'copyright': 'rights',
+              'copyright_detail': 'rights_detail',
+              'tagline': 'subtitle',
+              'tagline_detail': 'subtitle_detail'}
+    def __getitem__(self, key):
+        if key == 'category':
+            return UserDict.__getitem__(self, 'tags')[0]['term']
+        if key == 'enclosures':
+            norel = lambda link: FeedParserDict([(name,value) for (name,value) in link.items() if name!='rel'])
+            return [norel(link) for link in UserDict.__getitem__(self, 'links') if link['rel']=='enclosure']
+        if key == 'license':
+            for link in UserDict.__getitem__(self, 'links'):
+                if link['rel']=='license' and link.has_key('href'):
+                    return link['href']
+        if key == 'categories':
+            return [(tag['scheme'], tag['term']) for tag in UserDict.__getitem__(self, 'tags')]
+        realkey = self.keymap.get(key, key)
+        if type(realkey) == types.ListType:
+            for k in realkey:
+                if UserDict.__contains__(self, k):
+                    return UserDict.__getitem__(self, k)
+        if UserDict.__contains__(self, key):
+            return UserDict.__getitem__(self, key)
+        return UserDict.__getitem__(self, realkey)
+
+    def __setitem__(self, key, value):
+        for k in self.keymap.keys():
+            if key == k:
+                key = self.keymap[k]
+                if type(key) == types.ListType:
+                    key = key[0]
+        return UserDict.__setitem__(self, key, value)
+
+    def get(self, key, default=None):
+        if self.has_key(key):
+            return self[key]
+        else:
+            return default
+
+    def setdefault(self, key, value):
+        if not self.has_key(key):
+            self[key] = value
+        return self[key]
+        
+    def has_key(self, key):
+        try:
+            return hasattr(self, key) or UserDict.__contains__(self, key)
+        except AttributeError:
+            return False
+    # This alias prevents the 2to3 tool from changing the semantics of the
+    # __contains__ function below and exhausting the maximum recursion depth
+    __has_key = has_key
+        
+    def __getattr__(self, key):
+        try:
+            return self.__dict__[key]
+        except KeyError:
+            pass
+        try:
+            assert not key.startswith('_')
+            return self.__getitem__(key)
+        except:
+            raise AttributeError, "object has no attribute '%s'" % key
+
+    def __setattr__(self, key, value):
+        if key.startswith('_') or key == 'data':
+            self.__dict__[key] = value
+        else:
+            return self.__setitem__(key, value)
+
+    def __contains__(self, key):
+        return self.__has_key(key)
+
+def zopeCompatibilityHack():
+    global FeedParserDict
+    del FeedParserDict
+    def FeedParserDict(aDict=None):
+        rc = {}
+        if aDict:
+            rc.update(aDict)
+        return rc
+
+_ebcdic_to_ascii_map = None
+def _ebcdic_to_ascii(s):
+    global _ebcdic_to_ascii_map
+    if not _ebcdic_to_ascii_map:
+        emap = (
+            0,1,2,3,156,9,134,127,151,141,142,11,12,13,14,15,
+            16,17,18,19,157,133,8,135,24,25,146,143,28,29,30,31,
+            128,129,130,131,132,10,23,27,136,137,138,139,140,5,6,7,
+            144,145,22,147,148,149,150,4,152,153,154,155,20,21,158,26,
+            32,160,161,162,163,164,165,166,167,168,91,46,60,40,43,33,
+            38,169,170,171,172,173,174,175,176,177,93,36,42,41,59,94,
+            45,47,178,179,180,181,182,183,184,185,124,44,37,95,62,63,
+            186,187,188,189,190,191,192,193,194,96,58,35,64,39,61,34,
+            195,97,98,99,100,101,102,103,104,105,196,197,198,199,200,201,
+            202,106,107,108,109,110,111,112,113,114,203,204,205,206,207,208,
+            209,126,115,116,117,118,119,120,121,122,210,211,212,213,214,215,
+            216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,
+            123,65,66,67,68,69,70,71,72,73,232,233,234,235,236,237,
+            125,74,75,76,77,78,79,80,81,82,238,239,240,241,242,243,
+            92,159,83,84,85,86,87,88,89,90,244,245,246,247,248,249,
+            48,49,50,51,52,53,54,55,56,57,250,251,252,253,254,255
+            )
+        _ebcdic_to_ascii_map = _maketrans( \
+            _l2bytes(range(256)), _l2bytes(emap))
+    return s.translate(_ebcdic_to_ascii_map)
+ 
+_cp1252 = {
+  unichr(128): unichr(8364), # euro sign
+  unichr(130): unichr(8218), # single low-9 quotation mark
+  unichr(131): unichr( 402), # latin small letter f with hook
+  unichr(132): unichr(8222), # double low-9 quotation mark
+  unichr(133): unichr(8230), # horizontal ellipsis
+  unichr(134): unichr(8224), # dagger
+  unichr(135): unichr(8225), # double dagger
+  unichr(136): unichr( 710), # modifier letter circumflex accent
+  unichr(137): unichr(8240), # per mille sign
+  unichr(138): unichr( 352), # latin capital letter s with caron
+  unichr(139): unichr(8249), # single left-pointing angle quotation mark
+  unichr(140): unichr( 338), # latin capital ligature oe
+  unichr(142): unichr( 381), # latin capital letter z with caron
+  unichr(145): unichr(8216), # left single quotation mark
+  unichr(146): unichr(8217), # right single quotation mark
+  unichr(147): unichr(8220), # left double quotation mark
+  unichr(148): unichr(8221), # right double quotation mark
+  unichr(149): unichr(8226), # bullet
+  unichr(150): unichr(8211), # en dash
+  unichr(151): unichr(8212), # em dash
+  unichr(152): unichr( 732), # small tilde
+  unichr(153): unichr(8482), # trade mark sign
+  unichr(154): unichr( 353), # latin small letter s with caron
+  unichr(155): unichr(8250), # single right-pointing angle quotation mark
+  unichr(156): unichr( 339), # latin small ligature oe
+  unichr(158): unichr( 382), # latin small letter z with caron
+  unichr(159): unichr( 376)} # latin capital letter y with diaeresis
+
+_urifixer = re.compile('^([A-Za-z][A-Za-z0-9+-.]*://)(/*)(.*?)')
+def _urljoin(base, uri):
+    uri = _urifixer.sub(r'\1\3', uri)
+    try:
+        return urlparse.urljoin(base, uri)
+    except:
+        uri = urlparse.urlunparse([urllib.quote(part) for part in urlparse.urlparse(uri)])
+        return urlparse.urljoin(base, uri)
+
+class _FeedParserMixin:
+    namespaces = {'': '',
+                  'http://backend.userland.com/rss': '',
+                  'http://blogs.law.harvard.edu/tech/rss': '',
+                  'http://purl.org/rss/1.0/': '',
+                  'http://my.netscape.com/rdf/simple/0.9/': '',
+                  'http://example.com/newformat#': '',
+                  'http://example.com/necho': '',
+                  'http://purl.org/echo/': '',
+                  'uri/of/echo/namespace#': '',
+                  'http://purl.org/pie/': '',
+                  'http://purl.org/atom/ns#': '',
+                  'http://www.w3.org/2005/Atom': '',
+                  'http://purl.org/rss/1.0/modules/rss091#': '',
+                  
+                  'http://webns.net/mvcb/':                               'admin',
+                  'http://purl.org/rss/1.0/modules/aggregation/':         'ag',
+                  'http://purl.org/rss/1.0/modules/annotate/':            'annotate',
+                  'http://media.tangent.org/rss/1.0/':                    'audio',
+                  'http://backend.userland.com/blogChannelModule':        'blogChannel',
+                  'http://web.resource.org/cc/':                          'cc',
+                  'http://backend.userland.com/creativeCommonsRssModule': 'creativeCommons',
+                  'http://purl.org/rss/1.0/modules/company':              'co',
+                  'http://purl.org/rss/1.0/modules/content/':             'content',
+                  'http://my.theinfo.org/changed/1.0/rss/':               'cp',
+                  'http://purl.org/dc/elements/1.1/':                     'dc',
+                  'http://purl.org/dc/terms/':                            'dcterms',
+                  'http://purl.org/rss/1.0/modules/email/':               'email',
+                  'http://purl.org/rss/1.0/modules/event/':               'ev',
+                  'http://rssnamespace.org/feedburner/ext/1.0':           'feedburner',
+                  'http://freshmeat.net/rss/fm/':                         'fm',
+                  'http://xmlns.com/foaf/0.1/':                           'foaf',
+                  'http://www.w3.org/2003/01/geo/wgs84_pos#':             'geo',
+                  'http://postneo.com/icbm/':                             'icbm',
+                  'http://purl.org/rss/1.0/modules/image/':               'image',
+                  'http://www.itunes.com/DTDs/PodCast-1.0.dtd':           'itunes',
+                  'http://example.com/DTDs/PodCast-1.0.dtd':              'itunes',
+                  'http://purl.org/rss/1.0/modules/link/':                'l',
+                  'http://search.yahoo.com/mrss':                         'media',
+                  #Version 1.1.2 of the Media RSS spec added the trailing slash on the namespace
+                  'http://search.yahoo.com/mrss/':                         'media',
+                  'http://madskills.com/public/xml/rss/module/pingback/': 'pingback',
+                  'http://prismstandard.org/namespaces/1.2/basic/':       'prism',
+                  'http://www.w3.org/1999/02/22-rdf-syntax-ns#':          'rdf',
+                  'http://www.w3.org/2000/01/rdf-schema#':                'rdfs',
+                  'http://purl.org/rss/1.0/modules/reference/':           'ref',
+                  'http://purl.org/rss/1.0/modules/richequiv/':           'reqv',
+                  'http://purl.org/rss/1.0/modules/search/':              'search',
+                  'http://purl.org/rss/1.0/modules/slash/':               'slash',
+                  'http://schemas.xmlsoap.org/soap/envelope/':            'soap',
+                  'http://purl.org/rss/1.0/modules/servicestatus/':       'ss',
+                  'http://hacks.benhammersley.com/rss/streaming/':        'str',
+                  'http://purl.org/rss/1.0/modules/subscription/':        'sub',
+                  'http://purl.org/rss/1.0/modules/syndication/':         'sy',
+                  'http://schemas.pocketsoap.com/rss/myDescModule/':      'szf',
+                  'http://purl.org/rss/1.0/modules/taxonomy/':            'taxo',
+                  'http://purl.org/rss/1.0/modules/threading/':           'thr',
+                  'http://purl.org/rss/1.0/modules/textinput/':           'ti',
+                  'http://madskills.com/public/xml/rss/module/trackback/':'trackback',
+                  'http://wellformedweb.org/commentAPI/':                 'wfw',
+                  'http://purl.org/rss/1.0/modules/wiki/':                'wiki',
+                  'http://www.w3.org/1999/xhtml':                         'xhtml',
+                  'http://www.w3.org/1999/xlink':                         'xlink',
+                  'http://www.w3.org/XML/1998/namespace':                 'xml'
+}
+    _matchnamespaces = {}
+
+    can_be_relative_uri = ['link', 'id', 'wfw_comment', 'wfw_commentrss', 'docs', 'url', 'href', 'comments', 'icon', 'logo']
+    can_contain_relative_uris = ['content', 'title', 'summary', 'info', 'tagline', 'subtitle', 'copyright', 'rights', 'description']
+    can_contain_dangerous_markup = ['content', 'title', 'summary', 'info', 'tagline', 'subtitle', 'copyright', 'rights', 'description']
+    html_types = ['text/html', 'application/xhtml+xml']
+    
+    def __init__(self, baseuri=None, baselang=None, encoding='utf-8'):
+        if _debug: sys.stderr.write('initializing FeedParser\n')
+        if not self._matchnamespaces:
+            for k, v in self.namespaces.items():
+                self._matchnamespaces[k.lower()] = v
+        self.feeddata = FeedParserDict() # feed-level data
+        self.encoding = encoding # character encoding
+        self.entries = [] # list of entry-level data
+        self.version = '' # feed type/version, see SUPPORTED_VERSIONS
+        self.namespacesInUse = {} # dictionary of namespaces defined by the feed
+
+        # the following are used internally to track state;
+        # this is really out of control and should be refactored
+        self.infeed = 0
+        self.inentry = 0
+        self.incontent = 0
+        self.intextinput = 0
+        self.inimage = 0
+        self.inauthor = 0
+        self.incontributor = 0
+        self.inpublisher = 0
+        self.insource = 0
+        self.sourcedata = FeedParserDict()
+        self.contentparams = FeedParserDict()
+        self._summaryKey = None
+        self.namespacemap = {}
+        self.elementstack = []
+        self.basestack = []
+        self.langstack = []
+        self.baseuri = baseuri or ''
+        self.lang = baselang or None
+        self.svgOK = 0
+        self.hasTitle = 0
+        if baselang:
+            self.feeddata['language'] = baselang.replace('_','-')
+
+    def unknown_starttag(self, tag, attrs):
+        if _debug: sys.stderr.write('start %s with %s\n' % (tag, attrs))
+        # normalize attrs
+        attrs = [(k.lower(), v) for k, v in attrs]
+        attrs = [(k, k in ('rel', 'type') and v.lower() or v) for k, v in attrs]
+        # the sgml parser doesn't handle entities in attributes, but
+        # strict xml parsers do -- account for this difference
+        if isinstance(self, _LooseFeedParser):
+            attrs = [(k, v.replace('&amp;', '&')) for k, v in attrs]
+        
+        # track xml:base and xml:lang
+        attrsD = dict(attrs)
+        baseuri = attrsD.get('xml:base', attrsD.get('base')) or self.baseuri
+        if type(baseuri) != type(u''):
+            try:
+                baseuri = unicode(baseuri, self.encoding)
+            except:
+                baseuri = unicode(baseuri, 'iso-8859-1')
+        # ensure that self.baseuri is always an absolute URI that
+        # uses a whitelisted URI scheme (e.g. not `javscript:`)
+        if self.baseuri:
+            self.baseuri = _makeSafeAbsoluteURI(self.baseuri, baseuri) or self.baseuri
+        else:
+            self.baseuri = _urljoin(self.baseuri, baseuri)
+        lang = attrsD.get('xml:lang', attrsD.get('lang'))
+        if lang == '':
+            # xml:lang could be explicitly set to '', we need to capture that
+            lang = None
+        elif lang is None:
+            # if no xml:lang is specified, use parent lang
+            lang = self.lang
+        if lang:
+            if tag in ('feed', 'rss', 'rdf:RDF'):
+                self.feeddata['language'] = lang.replace('_','-')
+        self.lang = lang
+        self.basestack.append(self.baseuri)
+        self.langstack.append(lang)
+        
+        # track namespaces
+        for prefix, uri in attrs:
+            if prefix.startswith('xmlns:'):
+                self.trackNamespace(prefix[6:], uri)
+            elif prefix == 'xmlns':
+                self.trackNamespace(None, uri)
+
+        # track inline content
+        if self.incontent and self.contentparams.has_key('type') and not self.contentparams.get('type', 'xml').endswith('xml'):
+            if tag in ['xhtml:div', 'div']: return # typepad does this 10/2007
+            # element declared itself as escaped markup, but it isn't really
+            self.contentparams['type'] = 'application/xhtml+xml'
+        if self.incontent and self.contentparams.get('type') == 'application/xhtml+xml':
+            if tag.find(':') <> -1:
+                prefix, tag = tag.split(':', 1)
+                namespace = self.namespacesInUse.get(prefix, '')
+                if tag=='math' and namespace=='http://www.w3.org/1998/Math/MathML':
+                    attrs.append(('xmlns',namespace))
+                if tag=='svg' and namespace=='http://www.w3.org/2000/svg':
+                    attrs.append(('xmlns',namespace))
+            if tag == 'svg': self.svgOK += 1
+            return self.handle_data('<%s%s>' % (tag, self.strattrs(attrs)), escape=0)
+
+        # match namespaces
+        if tag.find(':') <> -1:
+            prefix, suffix = tag.split(':', 1)
+        else:
+            prefix, suffix = '', tag
+        prefix = self.namespacemap.get(prefix, prefix)
+        if prefix:
+            prefix = prefix + '_'
+
+        # special hack for better tracking of empty textinput/image elements in illformed feeds
+        if (not prefix) and tag not in ('title', 'link', 'description', 'name'):
+            self.intextinput = 0
+        if (not prefix) and tag not in ('title', 'link', 'description', 'url', 'href', 'width', 'height'):
+            self.inimage = 0
+        
+        # call special handler (if defined) or default handler
+        methodname = '_start_' + prefix + suffix
+        try:
+            method = getattr(self, methodname)
+            return method(attrsD)
+        except AttributeError:
+            # Since there's no handler or something has gone wrong we explicitly add the element and its attributes
+            unknown_tag = prefix + suffix
+            if len(attrsD) == 0:
+                # No attributes so merge it into the encosing dictionary
+                return self.push(unknown_tag, 1)
+            else:
+                # Has attributes so create it in its own dictionary
+                context = self._getContext()
+                context[unknown_tag] = attrsD
+
+    def unknown_endtag(self, tag):
+        if _debug: sys.stderr.write('end %s\n' % tag)
+        # match namespaces
+        if tag.find(':') <> -1:
+            prefix, suffix = tag.split(':', 1)
+        else:
+            prefix, suffix = '', tag
+        prefix = self.namespacemap.get(prefix, prefix)
+        if prefix:
+            prefix = prefix + '_'
+        if suffix == 'svg' and self.svgOK: self.svgOK -= 1
+
+        # call special handler (if defined) or default handler
+        methodname = '_end_' + prefix + suffix
+        try:
+            if self.svgOK: raise AttributeError()
+            method = getattr(self, methodname)
+            method()
+        except AttributeError:
+            self.pop(prefix + suffix)
+
+        # track inline content
+        if self.incontent and self.contentparams.has_key('type') and not self.contentparams.get('type', 'xml').endswith('xml'):
+            # element declared itself as escaped markup, but it isn't really
+            if tag in ['xhtml:div', 'div']: return # typepad does this 10/2007
+            self.contentparams['type'] = 'application/xhtml+xml'
+        if self.incontent and self.contentparams.get('type') == 'application/xhtml+xml':
+            tag = tag.split(':')[-1]
+            self.handle_data('</%s>' % tag, escape=0)
+
+        # track xml:base and xml:lang going out of scope
+        if self.basestack:
+            self.basestack.pop()
+            if self.basestack and self.basestack[-1]:
+                self.baseuri = self.basestack[-1]
+        if self.langstack:
+            self.langstack.pop()
+            if self.langstack: # and (self.langstack[-1] is not None):
+                self.lang = self.langstack[-1]
+
+    def handle_charref(self, ref):
+        # called for each character reference, e.g. for '&#160;', ref will be '160'
+        if not self.elementstack: return
+        ref = ref.lower()
+        if ref in ('34', '38', '39', '60', '62', 'x22', 'x26', 'x27', 'x3c', 'x3e'):
+            text = '&#%s;' % ref
+        else:
+            if ref[0] == 'x':
+                c = int(ref[1:], 16)
+            else:
+                c = int(ref)
+            text = unichr(c).encode('utf-8')
+        self.elementstack[-1][2].append(text)
+
+    def handle_entityref(self, ref):
+        # called for each entity reference, e.g. for '&copy;', ref will be 'copy'
+        if not self.elementstack: return
+        if _debug: sys.stderr.write('entering handle_entityref with %s\n' % ref)
+        if ref in ('lt', 'gt', 'quot', 'amp', 'apos'):
+            text = '&%s;' % ref
+        elif ref in self.entities.keys():
+            text = self.entities[ref]
+            if text.startswith('&#') and text.endswith(';'):
+                return self.handle_entityref(text)
+        else:
+            try: name2codepoint[ref]
+            except KeyError: text = '&%s;' % ref
+            else: text = unichr(name2codepoint[ref]).encode('utf-8')
+        self.elementstack[-1][2].append(text)
+
+    def handle_data(self, text, escape=1):
+        # called for each block of plain text, i.e. outside of any tag and
+        # not containing any character or entity references
+        if not self.elementstack: return
+        if escape and self.contentparams.get('type') == 'application/xhtml+xml':
+            text = _xmlescape(text)
+        self.elementstack[-1][2].append(text)
+
+    def handle_comment(self, text):
+        # called for each comment, e.g. <!-- insert message here -->
+        pass
+
+    def handle_pi(self, text):
+        # called for each processing instruction, e.g. <?instruction>
+        pass
+
+    def handle_decl(self, text):
+        pass
+
+    def parse_declaration(self, i):
+        # override internal declaration handler to handle CDATA blocks
+        if _debug: sys.stderr.write('entering parse_declaration\n')
+        if self.rawdata[i:i+9] == '<![CDATA[':
+            k = self.rawdata.find(']]>', i)
+            if k == -1:
+                # CDATA block began but didn't finish
+                k = len(self.rawdata)
+                return k
+            self.handle_data(_xmlescape(self.rawdata[i+9:k]), 0)
+            return k+3
+        else:
+            k = self.rawdata.find('>', i)
+            if k >= 0:
+                return k+1
+            else:
+                # We have an incomplete CDATA block.
+                return k
+
+    def mapContentType(self, contentType):
+        contentType = contentType.lower()
+        if contentType == 'text':
+            contentType = 'text/plain'
+        elif contentType == 'html':
+            contentType = 'text/html'
+        elif contentType == 'xhtml':
+            contentType = 'application/xhtml+xml'
+        return contentType
+    
+    def trackNamespace(self, prefix, uri):
+        loweruri = uri.lower()
+        if (prefix, loweruri) == (None, 'http://my.netscape.com/rdf/simple/0.9/') and not self.version:
+            self.version = 'rss090'
+        if loweruri == 'http://purl.org/rss/1.0/' and not self.version:
+            self.version = 'rss10'
+        if loweruri == 'http://www.w3.org/2005/atom' and not self.version:
+            self.version = 'atom10'
+        if loweruri.find('backend.userland.com/rss') <> -1:
+            # match any backend.userland.com namespace
+            uri = 'http://backend.userland.com/rss'
+            loweruri = uri
+        if self._matchnamespaces.has_key(loweruri):
+            self.namespacemap[prefix] = self._matchnamespaces[loweruri]
+            self.namespacesInUse[self._matchnamespaces[loweruri]] = uri
+        else:
+            self.namespacesInUse[prefix or ''] = uri
+
+    def resolveURI(self, uri):
+        return _urljoin(self.baseuri or '', uri)
+    
+    def decodeEntities(self, element, data):
+        return data
+
+    def strattrs(self, attrs):
+        return ''.join([' %s="%s"' % (t[0],_xmlescape(t[1],{'"':'&quot;'})) for t in attrs])
+
+    def push(self, element, expectingText):
+        self.elementstack.append([element, expectingText, []])
+
+    def pop(self, element, stripWhitespace=1):
+        if not self.elementstack: return
+        if self.elementstack[-1][0] != element: return
+        
+        element, expectingText, pieces = self.elementstack.pop()
+
+        if self.version == 'atom10' and self.contentparams.get('type','text') == 'application/xhtml+xml':
+            # remove enclosing child element, but only if it is a <div> and
+            # only if all the remaining content is nested underneath it.
+            # This means that the divs would be retained in the following:
+            #    <div>foo</div><div>bar</div>
+            while pieces and len(pieces)>1 and not pieces[-1].strip():
+                del pieces[-1]
+            while pieces and len(pieces)>1 and not pieces[0].strip():
+                del pieces[0]
+            if pieces and (pieces[0] == '<div>' or pieces[0].startswith('<div ')) and pieces[-1]=='</div>':
+                depth = 0
+                for piece in pieces[:-1]:
+                    if piece.startswith('</'):
+                        depth -= 1
+                        if depth == 0: break
+                    elif piece.startswith('<') and not piece.endswith('/>'):
+                        depth += 1
+                else:
+                    pieces = pieces[1:-1]
+
+        # Ensure each piece is a str for Python 3
+        for (i, v) in enumerate(pieces):
+            if not isinstance(v, basestring):
+                pieces[i] = v.decode('utf-8')
+
+        output = ''.join(pieces)
+        if stripWhitespace:
+            output = output.strip()
+        if not expectingText: return output
+
+        # decode base64 content
+        if base64 and self.contentparams.get('base64', 0):
+            try:
+                output = _base64decode(output)
+            except binascii.Error:
+                pass
+            except binascii.Incomplete:
+                pass
+            except TypeError:
+                # In Python 3, base64 takes and outputs bytes, not str
+                # This may not be the most correct way to accomplish this
+                output = _base64decode(output.encode('utf-8')).decode('utf-8')
+                
+        # resolve relative URIs
+        if (element in self.can_be_relative_uri) and output:
+            output = self.resolveURI(output)
+        
+        # decode entities within embedded markup
+        if not self.contentparams.get('base64', 0):
+            output = self.decodeEntities(element, output)
+
+        if self.lookslikehtml(output):
+            self.contentparams['type']='text/html'
+
+        # remove temporary cruft from contentparams
+        try:
+            del self.contentparams['mode']
+        except KeyError:
+            pass
+        try:
+            del self.contentparams['base64']
+        except KeyError:
+            pass
+
+        is_htmlish = self.mapContentType(self.contentparams.get('type', 'text/html')) in self.html_types
+        # resolve relative URIs within embedded markup
+        if is_htmlish and RESOLVE_RELATIVE_URIS:
+            if element in self.can_contain_relative_uris:
+                output = _resolveRelativeURIs(output, self.baseuri, self.encoding, self.contentparams.get('type', 'text/html'))
+                
+        # parse microformats
+        # (must do this before sanitizing because some microformats
+        # rely on elements that we sanitize)
+        if is_htmlish and element in ['content', 'description', 'summary']:
+            mfresults = _parseMicroformats(output, self.baseuri, self.encoding)
+            if mfresults:
+                for tag in mfresults.get('tags', []):
+                    self._addTag(tag['term'], tag['scheme'], tag['label'])
+                for enclosure in mfresults.get('enclosures', []):
+                    self._start_enclosure(enclosure)
+                for xfn in mfresults.get('xfn', []):
+                    self._addXFN(xfn['relationships'], xfn['href'], xfn['name'])
+                vcard = mfresults.get('vcard')
+                if vcard:
+                    self._getContext()['vcard'] = vcard
+        
+        # sanitize embedded markup
+        if is_htmlish and SANITIZE_HTML:
+            if element in self.can_contain_dangerous_markup:
+                output = _sanitizeHTML(output, self.encoding, self.contentparams.get('type', 'text/html'))
+
+        if self.encoding and type(output) != type(u''):
+            try:
+                output = unicode(output, self.encoding)
+            except:
+                pass
+
+        # address common error where people take data that is already
+        # utf-8, presume that it is iso-8859-1, and re-encode it.
+        if self.encoding in ('utf-8', 'utf-8_INVALID_PYTHON_3') and type(output) == type(u''):
+            try:
+                output = unicode(output.encode('iso-8859-1'), 'utf-8')
+            except:
+                pass
+
+        # map win-1252 extensions to the proper code points
+        if type(output) == type(u''):
+            output = u''.join([c in _cp1252.keys() and _cp1252[c] or c for c in output])
+
+        # categories/tags/keywords/whatever are handled in _end_category
+        if element == 'category':
+            return output
+
+        if element == 'title' and self.hasTitle:
+            return output
+        
+        # store output in appropriate place(s)
+        if self.inentry and not self.insource:
+            if element == 'content':
+                self.entries[-1].setdefault(element, [])
+                contentparams = copy.deepcopy(self.contentparams)
+                contentparams['value'] = output
+                self.entries[-1][element].append(contentparams)
+            elif element == 'link':
+                if not self.inimage:
+                    # query variables in urls in link elements are improperly
+                    # converted from `?a=1&b=2` to `?a=1&b;=2` as if they're
+                    # unhandled character references. fix this special case.
+                    output = re.sub("&([A-Za-z0-9_]+);", "&\g<1>", output)
+                    self.entries[-1][element] = output
+                    if output:
+                        self.entries[-1]['links'][-1]['href'] = output
+            else:
+                if element == 'description':
+                    element = 'summary'
+                self.entries[-1][element] = output
+                if self.incontent:
+                    contentparams = copy.deepcopy(self.contentparams)
+                    contentparams['value'] = output
+                    self.entries[-1][element + '_detail'] = contentparams
+        elif (self.infeed or self.insource):# and (not self.intextinput) and (not self.inimage):
+            context = self._getContext()
+            if element == 'description':
+                element = 'subtitle'
+            context[element] = output
+            if element == 'link':
+                # fix query variables; see above for the explanation
+                output = re.sub("&([A-Za-z0-9_]+);", "&\g<1>", output)
+                context[element] = output
+                context['links'][-1]['href'] = output
+            elif self.incontent:
+                contentparams = copy.deepcopy(self.contentparams)
+                contentparams['value'] = output
+                context[element + '_detail'] = contentparams
+        return output
+
+    def pushContent(self, tag, attrsD, defaultContentType, expectingText):
+        self.incontent += 1
+        if self.lang: self.lang=self.lang.replace('_','-')
+        self.contentparams = FeedParserDict({
+            'type': self.mapContentType(attrsD.get('type', defaultContentType)),
+            'language': self.lang,
+            'base': self.baseuri})
+        self.contentparams['base64'] = self._isBase64(attrsD, self.contentparams)
+        self.push(tag, expectingText)
+
+    def popContent(self, tag):
+        value = self.pop(tag)
+        self.incontent -= 1
+        self.contentparams.clear()
+        return value
+        
+    # a number of elements in a number of RSS variants are nominally plain
+    # text, but this is routinely ignored.  This is an attempt to detect
+    # the most common cases.  As false positives often result in silent
+    # data loss, this function errs on the conservative side.
+    def lookslikehtml(self, s):
+        if self.version.startswith('atom'): return
+        if self.contentparams.get('type','text/html') != 'text/plain': return
+
+        # must have a close tag or a entity reference to qualify
+        if not (re.search(r'</(\w+)>',s) or re.search("&#?\w+;",s)): return
+
+        # all tags must be in a restricted subset of valid HTML tags
+        if filter(lambda t: t.lower() not in _HTMLSanitizer.acceptable_elements,
+            re.findall(r'</?(\w+)',s)): return
+
+        # all entities must have been defined as valid HTML entities
+        from htmlentitydefs import entitydefs
+        if filter(lambda e: e not in entitydefs.keys(),
+            re.findall(r'&(\w+);',s)): return
+
+        return 1
+
+    def _mapToStandardPrefix(self, name):
+        colonpos = name.find(':')
+        if colonpos <> -1:
+            prefix = name[:colonpos]
+            suffix = name[colonpos+1:]
+            prefix = self.namespacemap.get(prefix, prefix)
+            name = prefix + ':' + suffix
+        return name
+        
+    def _getAttribute(self, attrsD, name):
+        return attrsD.get(self._mapToStandardPrefix(name))
+
+    def _isBase64(self, attrsD, contentparams):
+        if attrsD.get('mode', '') == 'base64':
+            return 1
+        if self.contentparams['type'].startswith('text/'):
+            return 0
+        if self.contentparams['type'].endswith('+xml'):
+            return 0
+        if self.contentparams['type'].endswith('/xml'):
+            return 0
+        return 1
+
+    def _itsAnHrefDamnIt(self, attrsD):
+        href = attrsD.get('url', attrsD.get('uri', attrsD.get('href', None)))
+        if href:
+            try:
+                del attrsD['url']
+            except KeyError:
+                pass
+            try:
+                del attrsD['uri']
+            except KeyError:
+                pass
+            attrsD['href'] = href
+        return attrsD
+    
+    def _save(self, key, value, overwrite=False):
+        context = self._getContext()
+        if overwrite:
+            context[key] = value
+        else:
+            context.setdefault(key, value)
+
+    def _start_rss(self, attrsD):
+        versionmap = {'0.91': 'rss091u',
+                      '0.92': 'rss092',
+                      '0.93': 'rss093',
+                      '0.94': 'rss094'}
+        #If we're here then this is an RSS feed.
+        #If we don't have a version or have a version that starts with something
+        #other than RSS then there's been a mistake. Correct it.
+        if not self.version or not self.version.startswith('rss'):
+            attr_version = attrsD.get('version', '')
+            version = versionmap.get(attr_version)
+            if version:
+                self.version = version
+            elif attr_version.startswith('2.'):
+                self.version = 'rss20'
+            else:
+                self.version = 'rss'
+    
+    def _start_dlhottitles(self, attrsD):
+        self.version = 'hotrss'
+
+    def _start_channel(self, attrsD):
+        self.infeed = 1
+        self._cdf_common(attrsD)
+    _start_feedinfo = _start_channel
+
+    def _cdf_common(self, attrsD):
+        if attrsD.has_key('lastmod'):
+            self._start_modified({})
+            self.elementstack[-1][-1] = attrsD['lastmod']
+            self._end_modified()
+        if attrsD.has_key('href'):
+            self._start_link({})
+            self.elementstack[-1][-1] = attrsD['href']
+            self._end_link()
+    
+    def _start_feed(self, attrsD):
+        self.infeed = 1
+        versionmap = {'0.1': 'atom01',
+                      '0.2': 'atom02',
+                      '0.3': 'atom03'}
+        if not self.version:
+            attr_version = attrsD.get('version')
+            version = versionmap.get(attr_version)
+            if version:
+                self.version = version
+            else:
+                self.version = 'atom'
+
+    def _end_channel(self):
+        self.infeed = 0
+    _end_feed = _end_channel
+    
+    def _start_image(self, attrsD):
+        context = self._getContext()
+        if not self.inentry:
+            context.setdefault('image', FeedParserDict())
+        self.inimage = 1
+        self.hasTitle = 0
+        self.push('image', 0)
+            
+    def _end_image(self):
+        self.pop('image')
+        self.inimage = 0
+
+    def _start_textinput(self, attrsD):
+        context = self._getContext()
+        context.setdefault('textinput', FeedParserDict())
+        self.intextinput = 1
+        self.hasTitle = 0
+        self.push('textinput', 0)
+    _start_textInput = _start_textinput
+    
+    def _end_textinput(self):
+        self.pop('textinput')
+        self.intextinput = 0
+    _end_textInput = _end_textinput
+
+    def _start_author(self, attrsD):
+        self.inauthor = 1
+        self.push('author', 1)
+        # Append a new FeedParserDict when expecting an author
+        context = self._getContext()
+        context.setdefault('authors', [])
+        context['authors'].append(FeedParserDict())
+    _start_managingeditor = _start_author
+    _start_dc_author = _start_author
+    _start_dc_creator = _start_author
+    _start_itunes_author = _start_author
+
+    def _end_author(self):
+        self.pop('author')
+        self.inauthor = 0
+        self._sync_author_detail()
+    _end_managingeditor = _end_author
+    _end_dc_author = _end_author
+    _end_dc_creator = _end_author
+    _end_itunes_author = _end_author
+
+    def _start_itunes_owner(self, attrsD):
+        self.inpublisher = 1
+        self.push('publisher', 0)
+
+    def _end_itunes_owner(self):
+        self.pop('publisher')
+        self.inpublisher = 0
+        self._sync_author_detail('publisher')
+
+    def _start_contributor(self, attrsD):
+        self.incontributor = 1
+        context = self._getContext()
+        context.setdefault('contributors', [])
+        context['contributors'].append(FeedParserDict())
+        self.push('contributor', 0)
+
+    def _end_contributor(self):
+        self.pop('contributor')
+        self.incontributor = 0
+
+    def _start_dc_contributor(self, attrsD):
+        self.incontributor = 1
+        context = self._getContext()
+        context.setdefault('contributors', [])
+        context['contributors'].append(FeedParserDict())
+        self.push('name', 0)
+
+    def _end_dc_contributor(self):
+        self._end_name()
+        self.incontributor = 0
+
+    def _start_name(self, attrsD):
+        self.push('name', 0)
+    _start_itunes_name = _start_name
+
+    def _end_name(self):
+        value = self.pop('name')
+        if self.inpublisher:
+            self._save_author('name', value, 'publisher')
+        elif self.inauthor:
+            self._save_author('name', value)
+        elif self.incontributor:
+            self._save_contributor('name', value)
+        elif self.intextinput:
+            context = self._getContext()
+            context['name'] = value
+    _end_itunes_name = _end_name
+
+    def _start_width(self, attrsD):
+        self.push('width', 0)
+
+    def _end_width(self):
+        value = self.pop('width')
+        try:
+            value = int(value)
+        except:
+            value = 0
+        if self.inimage:
+            context = self._getContext()
+            context['width'] = value
+
+    def _start_height(self, attrsD):
+        self.push('height', 0)
+
+    def _end_height(self):
+        value = self.pop('height')
+        try:
+            value = int(value)
+        except:
+            value = 0
+        if self.inimage:
+            context = self._getContext()
+            context['height'] = value
+
+    def _start_url(self, attrsD):
+        self.push('href', 1)
+    _start_homepage = _start_url
+    _start_uri = _start_url
+
+    def _end_url(self):
+        value = self.pop('href')
+        if self.inauthor:
+            self._save_author('href', value)
+        elif self.incontributor:
+            self._save_contributor('href', value)
+    _end_homepage = _end_url
+    _end_uri = _end_url
+
+    def _start_email(self, attrsD):
+        self.push('email', 0)
+    _start_itunes_email = _start_email
+
+    def _end_email(self):
+        value = self.pop('email')
+        if self.inpublisher:
+            self._save_author('email', value, 'publisher')
+        elif self.inauthor:
+            self._save_author('email', value)
+        elif self.incontributor:
+            self._save_contributor('email', value)
+    _end_itunes_email = _end_email
+
+    def _getContext(self):
+        if self.insource:
+            context = self.sourcedata
+        elif self.inimage and self.feeddata.has_key('image'):
+            context = self.feeddata['image']
+        elif self.intextinput:
+            context = self.feeddata['textinput']
+        elif self.inentry:
+            context = self.entries[-1]
+        else:
+            context = self.feeddata
+        return context
+
+    def _save_author(self, key, value, prefix='author'):
+        context = self._getContext()
+        context.setdefault(prefix + '_detail', FeedParserDict())
+        context[prefix + '_detail'][key] = value
+        self._sync_author_detail()
+        context.setdefault('authors', [FeedParserDict()])
+        context['authors'][-1][key] = value
+
+    def _save_contributor(self, key, value):
+        context = self._getContext()
+        context.setdefault('contributors', [FeedParserDict()])
+        context['contributors'][-1][key] = value
+
+    def _sync_author_detail(self, key='author'):
+        context = self._getContext()
+        detail = context.get('%s_detail' % key)
+        if detail:
+            name = detail.get('name')
+            email = detail.get('email')
+            if name and email:
+                context[key] = '%s (%s)' % (name, email)
+            elif name:
+                context[key] = name
+            elif email:
+                context[key] = email
+        else:
+            author, email = context.get(key), None
+            if not author: return
+            emailmatch = re.search(r'''(([a-zA-Z0-9\_\-\.\+]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?))(\?subject=\S+)?''', author)
+            if emailmatch:
+                email = emailmatch.group(0)
+                # probably a better way to do the following, but it passes all the tests
+                author = author.replace(email, '')
+                author = author.replace('()', '')
+                author = author.replace('<>', '')
+                author = author.replace('&lt;&gt;', '')
+                author = author.strip()
+                if author and (author[0] == '('):
+                    author = author[1:]
+                if author and (author[-1] == ')'):
+                    author = author[:-1]
+                author = author.strip()
+            if author or email:
+                context.setdefault('%s_detail' % key, FeedParserDict())
+            if author:
+                context['%s_detail' % key]['name'] = author
+            if email:
+                context['%s_detail' % key]['email'] = email
+
+    def _start_subtitle(self, attrsD):
+        self.pushContent('subtitle', attrsD, 'text/plain', 1)
+    _start_tagline = _start_subtitle
+    _start_itunes_subtitle = _start_subtitle
+
+    def _end_subtitle(self):
+        self.popContent('subtitle')
+    _end_tagline = _end_subtitle
+    _end_itunes_subtitle = _end_subtitle
+            
+    def _start_rights(self, attrsD):
+        self.pushContent('rights', attrsD, 'text/plain', 1)
+    _start_dc_rights = _start_rights
+    _start_copyright = _start_rights
+
+    def _end_rights(self):
+        self.popContent('rights')
+    _end_dc_rights = _end_rights
+    _end_copyright = _end_rights
+
+    def _start_item(self, attrsD):
+        self.entries.append(FeedParserDict())
+        self.push('item', 0)
+        self.inentry = 1
+        self.guidislink = 0
+        self.hasTitle = 0
+        id = self._getAttribute(attrsD, 'rdf:about')
+        if id:
+            context = self._getContext()
+            context['id'] = id
+        self._cdf_common(attrsD)
+    _start_entry = _start_item
+    _start_product = _start_item
+
+    def _end_item(self):
+        self.pop('item')
+        self.inentry = 0
+    _end_entry = _end_item
+
+    def _start_dc_language(self, attrsD):
+        self.push('language', 1)
+    _start_language = _start_dc_language
+
+    def _end_dc_language(self):
+        self.lang = self.pop('language')
+    _end_language = _end_dc_language
+
+    def _start_dc_publisher(self, attrsD):
+        self.push('publisher', 1)
+    _start_webmaster = _start_dc_publisher
+
+    def _end_dc_publisher(self):
+        self.pop('publisher')
+        self._sync_author_detail('publisher')
+    _end_webmaster = _end_dc_publisher
+
+    def _start_published(self, attrsD):
+        self.push('published', 1)
+    _start_dcterms_issued = _start_published
+    _start_issued = _start_published
+
+    def _end_published(self):
+        value = self.pop('published')
+        self._save('published_parsed', _parse_date(value), overwrite=True)
+    _end_dcterms_issued = _end_published
+    _end_issued = _end_published
+
+    def _start_updated(self, attrsD):
+        self.push('updated', 1)
+    _start_modified = _start_updated
+    _start_dcterms_modified = _start_updated
+    _start_pubdate = _start_updated
+    _start_dc_date = _start_updated
+    _start_lastbuilddate = _start_updated
+
+    def _end_updated(self):
+        value = self.pop('updated')
+        parsed_value = _parse_date(value)
+        self._save('updated_parsed', parsed_value, overwrite=True)
+    _end_modified = _end_updated
+    _end_dcterms_modified = _end_updated
+    _end_pubdate = _end_updated
+    _end_dc_date = _end_updated
+    _end_lastbuilddate = _end_updated
+
+    def _start_created(self, attrsD):
+        self.push('created', 1)
+    _start_dcterms_created = _start_created
+
+    def _end_created(self):
+        value = self.pop('created')
+        self._save('created_parsed', _parse_date(value), overwrite=True)
+    _end_dcterms_created = _end_created
+
+    def _start_expirationdate(self, attrsD):
+        self.push('expired', 1)
+
+    def _end_expirationdate(self):
+        self._save('expired_parsed', _parse_date(self.pop('expired')), overwrite=True)
+
+    def _start_cc_license(self, attrsD):
+        context = self._getContext()
+        value = self._getAttribute(attrsD, 'rdf:resource')
+        attrsD = FeedParserDict()
+        attrsD['rel']='license'
+        if value: attrsD['href']=value
+        context.setdefault('links', []).append(attrsD)
+        
+    def _start_creativecommons_license(self, attrsD):
+        self.push('license', 1)
+    _start_creativeCommons_license = _start_creativecommons_license
+
+    def _end_creativecommons_license(self):
+        value = self.pop('license')
+        context = self._getContext()
+        attrsD = FeedParserDict()
+        attrsD['rel']='license'
+        if value: attrsD['href']=value
+        context.setdefault('links', []).append(attrsD)
+        del context['license']
+    _end_creativeCommons_license = _end_creativecommons_license
+
+    def _addXFN(self, relationships, href, name):
+        context = self._getContext()
+        xfn = context.setdefault('xfn', [])
+        value = FeedParserDict({'relationships': relationships, 'href': href, 'name': name})
+        if value not in xfn:
+            xfn.append(value)
+        
+    def _addTag(self, term, scheme, label):
+        context = self._getContext()
+        tags = context.setdefault('tags', [])
+        if (not term) and (not scheme) and (not label): return
+        value = FeedParserDict({'term': term, 'scheme': scheme, 'label': label})
+        if value not in tags:
+            tags.append(value)
+
+    def _start_category(self, attrsD):
+        if _debug: sys.stderr.write('entering _start_category with %s\n' % repr(attrsD))
+        term = attrsD.get('term')
+        scheme = attrsD.get('scheme', attrsD.get('domain'))
+        label = attrsD.get('label')
+        self._addTag(term, scheme, label)
+        self.push('category', 1)
+    _start_dc_subject = _start_category
+    _start_keywords = _start_category
+        
+    def _start_media_category(self, attrsD):
+        attrsD.setdefault('scheme', 'http://search.yahoo.com/mrss/category_schema')
+        self._start_category(attrsD)
+
+    def _end_itunes_keywords(self):
+        for term in self.pop('itunes_keywords').split():
+            self._addTag(term, 'http://www.itunes.com/', None)
+        
+    def _start_itunes_category(self, attrsD):
+        self._addTag(attrsD.get('text'), 'http://www.itunes.com/', None)
+        self.push('category', 1)
+        
+    def _end_category(self):
+        value = self.pop('category')
+        if not value: return
+        context = self._getContext()
+        tags = context['tags']
+        if value and len(tags) and not tags[-1]['term']:
+            tags[-1]['term'] = value
+        else:
+            self._addTag(value, None, None)
+    _end_dc_subject = _end_category
+    _end_keywords = _end_category
+    _end_itunes_category = _end_category
+    _end_media_category = _end_category
+
+    def _start_cloud(self, attrsD):
+        self._getContext()['cloud'] = FeedParserDict(attrsD)
+        
+    def _start_link(self, attrsD):
+        attrsD.setdefault('rel', 'alternate')
+        if attrsD['rel'] == 'self':
+            attrsD.setdefault('type', 'application/atom+xml')
+        else:
+            attrsD.setdefault('type', 'text/html')
+        context = self._getContext()
+        attrsD = self._itsAnHrefDamnIt(attrsD)
+        if attrsD.has_key('href'):
+            attrsD['href'] = self.resolveURI(attrsD['href'])
+        expectingText = self.infeed or self.inentry or self.insource
+        context.setdefault('links', [])
+        if not (self.inentry and self.inimage):
+            context['links'].append(FeedParserDict(attrsD))
+        if attrsD.has_key('href'):
+            expectingText = 0
+            if (attrsD.get('rel') == 'alternate') and (self.mapContentType(attrsD.get('type')) in self.html_types):
+                context['link'] = attrsD['href']
+        else:
+            self.push('link', expectingText)
+    _start_producturl = _start_link
+
+    def _end_link(self):
+        value = self.pop('link')
+        context = self._getContext()
+    _end_producturl = _end_link
+
+    def _start_guid(self, attrsD):
+        self.guidislink = (attrsD.get('ispermalink', 'true') == 'true')
+        self.push('id', 1)
+
+    def _end_guid(self):
+        value = self.pop('id')
+        self._save('guidislink', self.guidislink and not self._getContext().has_key('link'))
+        if self.guidislink:
+            # guid acts as link, but only if 'ispermalink' is not present or is 'true',
+            # and only if the item doesn't already have a link element
+            self._save('link', value)
+
+    def _start_title(self, attrsD):
+        if self.svgOK: return self.unknown_starttag('title', attrsD.items())
+        self.pushContent('title', attrsD, 'text/plain', self.infeed or self.inentry or self.insource)
+    _start_dc_title = _start_title
+    _start_media_title = _start_title
+
+    def _end_title(self):
+        if self.svgOK: return
+        value = self.popContent('title')
+        if not value: return
+        context = self._getContext()
+        self.hasTitle = 1
+    _end_dc_title = _end_title
+
+    def _end_media_title(self):
+        hasTitle = self.hasTitle
+        self._end_title()
+        self.hasTitle = hasTitle
+
+    def _start_description(self, attrsD):
+        context = self._getContext()
+        if context.has_key('summary'):
+            self._summaryKey = 'content'
+            self._start_content(attrsD)
+        else:
+            self.pushContent('description', attrsD, 'text/html', self.infeed or self.inentry or self.insource)
+    _start_dc_description = _start_description
+
+    def _start_abstract(self, attrsD):
+        self.pushContent('description', attrsD, 'text/plain', self.infeed or self.inentry or self.insource)
+
+    def _end_description(self):
+        if self._summaryKey == 'content':
+            self._end_content()
+        else:
+            value = self.popContent('description')
+        self._summaryKey = None
+    _end_abstract = _end_description
+    _end_dc_description = _end_description
+
+    def _start_info(self, attrsD):
+        self.pushContent('info', attrsD, 'text/plain', 1)
+    _start_feedburner_browserfriendly = _start_info
+
+    def _end_info(self):
+        self.popContent('info')
+    _end_feedburner_browserfriendly = _end_info
+
+    def _start_generator(self, attrsD):
+        if attrsD:
+            attrsD = self._itsAnHrefDamnIt(attrsD)
+            if attrsD.has_key('href'):
+                attrsD['href'] = self.resolveURI(attrsD['href'])
+        self._getContext()['generator_detail'] = FeedParserDict(attrsD)
+        self.push('generator', 1)
+
+    def _end_generator(self):
+        value = self.pop('generator')
+        context = self._getContext()
+        if context.has_key('generator_detail'):
+            context['generator_detail']['name'] = value
+            
+    def _start_admin_generatoragent(self, attrsD):
+        self.push('generator', 1)
+        value = self._getAttribute(attrsD, 'rdf:resource')
+        if value:
+            self.elementstack[-1][2].append(value)
+        self.pop('generator')
+        self._getContext()['generator_detail'] = FeedParserDict({'href': value})
+
+    def _start_admin_errorreportsto(self, attrsD):
+        self.push('errorreportsto', 1)
+        value = self._getAttribute(attrsD, 'rdf:resource')
+        if value:
+            self.elementstack[-1][2].append(value)
+        self.pop('errorreportsto')
+        
+    def _start_summary(self, attrsD):
+        context = self._getContext()
+        if context.has_key('summary'):
+            self._summaryKey = 'content'
+            self._start_content(attrsD)
+        else:
+            self._summaryKey = 'summary'
+            self.pushContent(self._summaryKey, attrsD, 'text/plain', 1)
+    _start_itunes_summary = _start_summary
+
+    def _end_summary(self):
+        if self._summaryKey == 'content':
+            self._end_content()
+        else:
+            self.popContent(self._summaryKey or 'summary')
+        self._summaryKey = None
+    _end_itunes_summary = _end_summary
+        
+    def _start_enclosure(self, attrsD):
+        attrsD = self._itsAnHrefDamnIt(attrsD)
+        context = self._getContext()
+        attrsD['rel']='enclosure'
+        context.setdefault('links', []).append(FeedParserDict(attrsD))
+            
+    def _start_source(self, attrsD):
+        if 'url' in attrsD:
+          # This means that we're processing a source element from an RSS 2.0 feed
+          self.sourcedata['href'] = attrsD[u'url']
+        self.push('source', 1)
+        self.insource = 1
+        self.hasTitle = 0
+
+    def _end_source(self):
+        self.insource = 0
+        value = self.pop('source')
+        if value:
+          self.sourcedata['title'] = value
+        self._getContext()['source'] = copy.deepcopy(self.sourcedata)
+        self.sourcedata.clear()
+
+    def _start_content(self, attrsD):
+        self.pushContent('content', attrsD, 'text/plain', 1)
+        src = attrsD.get('src')
+        if src:
+            self.contentparams['src'] = src
+        self.push('content', 1)
+
+    def _start_prodlink(self, attrsD):
+        self.pushContent('content', attrsD, 'text/html', 1)
+
+    def _start_body(self, attrsD):
+        self.pushContent('content', attrsD, 'application/xhtml+xml', 1)
+    _start_xhtml_body = _start_body
+
+    def _start_content_encoded(self, attrsD):
+        self.pushContent('content', attrsD, 'text/html', 1)
+    _start_fullitem = _start_content_encoded
+
+    def _end_content(self):
+        copyToSummary = self.mapContentType(self.contentparams.get('type')) in (['text/plain'] + self.html_types)
+        value = self.popContent('content')
+        if copyToSummary:
+            self._save('summary', value)
+
+    _end_body = _end_content
+    _end_xhtml_body = _end_content
+    _end_content_encoded = _end_content
+    _end_fullitem = _end_content
+    _end_prodlink = _end_content
+
+    def _start_itunes_image(self, attrsD):
+        self.push('itunes_image', 0)
+        if attrsD.get('href'):
+            self._getContext()['image'] = FeedParserDict({'href': attrsD.get('href')})
+    _start_itunes_link = _start_itunes_image
+        
+    def _end_itunes_block(self):
+        value = self.pop('itunes_block', 0)
+        self._getContext()['itunes_block'] = (value == 'yes') and 1 or 0
+
+    def _end_itunes_explicit(self):
+        value = self.pop('itunes_explicit', 0)
+        # Convert 'yes' -> True, 'clean' to False, and any other value to None
+        # False and None both evaluate as False, so the difference can be ignored
+        # by applications that only need to know if the content is explicit.
+        self._getContext()['itunes_explicit'] = (None, False, True)[(value == 'yes' and 2) or value == 'clean' or 0]
+
+    def _start_media_content(self, attrsD):
+        context = self._getContext()
+        context.setdefault('media_content', [])
+        context['media_content'].append(attrsD)
+
+    def _start_media_thumbnail(self, attrsD):
+        context = self._getContext()
+        context.setdefault('media_thumbnail', [])
+        self.push('url', 1) # new
+        context['media_thumbnail'].append(attrsD)
+
+    def _end_media_thumbnail(self):
+        url = self.pop('url')
+        context = self._getContext()
+        if url != None and len(url.strip()) != 0:
+            if not context['media_thumbnail'][-1].has_key('url'):
+                context['media_thumbnail'][-1]['url'] = url
+
+    def _start_media_player(self, attrsD):
+        self.push('media_player', 0)
+        self._getContext()['media_player'] = FeedParserDict(attrsD)
+
+    def _end_media_player(self):
+        value = self.pop('media_player')
+        context = self._getContext()
+        context['media_player']['content'] = value
+
+    def _start_newlocation(self, attrsD):
+        self.push('newlocation', 1)
+
+    def _end_newlocation(self):
+        url = self.pop('newlocation')
+        context = self._getContext()
+        # don't set newlocation if the context isn't right
+        if context is not self.feeddata:
+            return
+        context['newlocation'] = _makeSafeAbsoluteURI(self.baseuri, url.strip())
+
+if _XML_AVAILABLE:
+    class _StrictFeedParser(_FeedParserMixin, xml.sax.handler.ContentHandler):
+        def __init__(self, baseuri, baselang, encoding):
+            if _debug: sys.stderr.write('trying StrictFeedParser\n')
+            xml.sax.handler.ContentHandler.__init__(self)
+            _FeedParserMixin.__init__(self, baseuri, baselang, encoding)
+            self.bozo = 0
+            self.exc = None
+            self.decls = {}
+        
+        def startPrefixMapping(self, prefix, uri):
+            self.trackNamespace(prefix, uri)
+            if uri == 'http://www.w3.org/1999/xlink':
+              self.decls['xmlns:'+prefix] = uri
+        
+        def startElementNS(self, name, qname, attrs):
+            namespace, localname = name
+            lowernamespace = str(namespace or '').lower()
+            if lowernamespace.find('backend.userland.com/rss') <> -1:
+                # match any backend.userland.com namespace
+                namespace = 'http://backend.userland.com/rss'
+                lowernamespace = namespace
+            if qname and qname.find(':') > 0:
+                givenprefix = qname.split(':')[0]
+            else:
+                givenprefix = None
+            prefix = self._matchnamespaces.get(lowernamespace, givenprefix)
+            if givenprefix and (prefix == None or (prefix == '' and lowernamespace == '')) and not self.namespacesInUse.has_key(givenprefix):
+                    raise UndeclaredNamespace, "'%s' is not associated with a namespace" % givenprefix
+            localname = str(localname).lower()
+
+            # qname implementation is horribly broken in Python 2.1 (it
+            # doesn't report any), and slightly broken in Python 2.2 (it
+            # doesn't report the xml: namespace). So we match up namespaces
+            # with a known list first, and then possibly override them with
+            # the qnames the SAX parser gives us (if indeed it gives us any
+            # at all).  Thanks to MatejC for helping me test this and
+            # tirelessly telling me that it didn't work yet.
+            attrsD, self.decls = self.decls, {}
+            if localname=='math' and namespace=='http://www.w3.org/1998/Math/MathML':
+                attrsD['xmlns']=namespace
+            if localname=='svg' and namespace=='http://www.w3.org/2000/svg':
+                attrsD['xmlns']=namespace
+
+            if prefix:
+                localname = prefix.lower() + ':' + localname
+            elif namespace and not qname: #Expat
+                for name,value in self.namespacesInUse.items():
+                     if name and value == namespace:
+                         localname = name + ':' + localname
+                         break
+            if _debug: sys.stderr.write('startElementNS: qname = %s, namespace = %s, givenprefix = %s, prefix = %s, attrs = %s, localname = %s\n' % (qname, namespace, givenprefix, prefix, attrs.items(), localname))
+
+            for (namespace, attrlocalname), attrvalue in attrs._attrs.items():
+                lowernamespace = (namespace or '').lower()
+                prefix = self._matchnamespaces.get(lowernamespace, '')
+                if prefix:
+                    attrlocalname = prefix + ':' + attrlocalname
+                attrsD[str(attrlocalname).lower()] = attrvalue
+            for qname in attrs.getQNames():
+                attrsD[str(qname).lower()] = attrs.getValueByQName(qname)
+            self.unknown_starttag(localname, attrsD.items())
+
+        def characters(self, text):
+            self.handle_data(text)
+
+        def endElementNS(self, name, qname):
+            namespace, localname = name
+            lowernamespace = str(namespace or '').lower()
+            if qname and qname.find(':') > 0:
+                givenprefix = qname.split(':')[0]
+            else:
+                givenprefix = ''
+            prefix = self._matchnamespaces.get(lowernamespace, givenprefix)
+            if prefix:
+                localname = prefix + ':' + localname
+            elif namespace and not qname: #Expat
+                for name,value in self.namespacesInUse.items():
+                     if name and value == namespace:
+                         localname = name + ':' + localname
+                         break
+            localname = str(localname).lower()
+            self.unknown_endtag(localname)
+
+        def error(self, exc):
+            self.bozo = 1
+            self.exc = exc
+
+        def fatalError(self, exc):
+            self.error(exc)
+            raise exc
+
+class _BaseHTMLProcessor(sgmllib.SGMLParser):
+    special = re.compile('''[<>'"]''')
+    bare_ampersand = re.compile("&(?!#\d+;|#x[0-9a-fA-F]+;|\w+;)")
+    elements_no_end_tag = [
+      'area', 'base', 'basefont', 'br', 'col', 'command', 'embed', 'frame', 
+      'hr', 'img', 'input', 'isindex', 'keygen', 'link', 'meta', 'param',
+      'source', 'track', 'wbr'
+    ]
+
+    def __init__(self, encoding, _type):
+        self.encoding = encoding
+        self._type = _type
+        if _debug: sys.stderr.write('entering BaseHTMLProcessor, encoding=%s\n' % self.encoding)
+        sgmllib.SGMLParser.__init__(self)
+
+    def reset(self):
+        self.pieces = []
+        sgmllib.SGMLParser.reset(self)
+
+    def _shorttag_replace(self, match):
+        tag = match.group(1)
+        if tag in self.elements_no_end_tag:
+            return '<' + tag + ' />'
+        else:
+            return '<' + tag + '></' + tag + '>'
+
+    def parse_starttag(self,i):
+        j=sgmllib.SGMLParser.parse_starttag(self, i)
+        if self._type == 'application/xhtml+xml':
+            if j>2 and self.rawdata[j-2:j]=='/>':
+                self.unknown_endtag(self.lasttag)
+        return j
+
+    def feed(self, data):
+        data = re.compile(r'<!((?!DOCTYPE|--|\[))', re.IGNORECASE).sub(r'&lt;!\1', data)
+        #data = re.sub(r'<(\S+?)\s*?/>', self._shorttag_replace, data) # bug [ 1399464 ] Bad regexp for _shorttag_replace
+        data = re.sub(r'<([^<>\s]+?)\s*/>', self._shorttag_replace, data) 
+        data = data.replace('&#39;', "'")
+        data = data.replace('&#34;', '"')
+        try:
+            bytes
+            if bytes is str:
+                raise NameError
+            self.encoding = self.encoding + '_INVALID_PYTHON_3'
+        except NameError:
+            if self.encoding and type(data) == type(u''):
+                data = data.encode(self.encoding)
+        sgmllib.SGMLParser.feed(self, data)
+        sgmllib.SGMLParser.close(self)
+
+    def normalize_attrs(self, attrs):
+        if not attrs: return attrs
+        # utility method to be called by descendants
+        attrs = dict([(k.lower(), v) for k, v in attrs]).items()
+        attrs = [(k, k in ('rel', 'type') and v.lower() or v) for k, v in attrs]
+        attrs.sort()
+        return attrs
+
+    def unknown_starttag(self, tag, attrs):
+        # called for each start tag
+        # attrs is a list of (attr, value) tuples
+        # e.g. for <pre class='screen'>, tag='pre', attrs=[('class', 'screen')]
+        if _debug: sys.stderr.write('_BaseHTMLProcessor, unknown_starttag, tag=%s\n' % tag)
+        uattrs = []
+        strattrs=''
+        if attrs:
+            for key, value in attrs:
+                value=value.replace('>','&gt;').replace('<','&lt;').replace('"','&quot;')
+                value = self.bare_ampersand.sub("&amp;", value)
+                # thanks to Kevin Marks for this breathtaking hack to deal with (valid) high-bit attribute values in UTF-8 feeds
+                if type(value) != type(u''):
+                    try:
+                        value = unicode(value, self.encoding)
+                    except:
+                        value = unicode(value, 'iso-8859-1')
+                try:
+                    # Currently, in Python 3 the key is already a str, and cannot be decoded again
+                    uattrs.append((unicode(key, self.encoding), value))
+                except TypeError:
+                    uattrs.append((key, value))
+            strattrs = u''.join([u' %s="%s"' % (key, value) for key, value in uattrs])
+            if self.encoding:
+                try:
+                    strattrs=strattrs.encode(self.encoding)
+                except:
+                    pass
+        if tag in self.elements_no_end_tag:
+            self.pieces.append('<%(tag)s%(strattrs)s />' % locals())
+        else:
+            self.pieces.append('<%(tag)s%(strattrs)s>' % locals())
+
+    def unknown_endtag(self, tag):
+        # called for each end tag, e.g. for </pre>, tag will be 'pre'
+        # Reconstruct the original end tag.
+        if tag not in self.elements_no_end_tag:
+            self.pieces.append("</%(tag)s>" % locals())
+
+    def handle_charref(self, ref):
+        # called for each character reference, e.g. for '&#160;', ref will be '160'
+        # Reconstruct the original character reference.
+        if ref.startswith('x'):
+            value = unichr(int(ref[1:],16))
+        else:
+            value = unichr(int(ref))
+
+        if value in _cp1252.keys():
+            self.pieces.append('&#%s;' % hex(ord(_cp1252[value]))[1:])
+        else:
+            self.pieces.append('&#%(ref)s;' % locals())
+        
+    def handle_entityref(self, ref):
+        # called for each entity reference, e.g. for '&copy;', ref will be 'copy'
+        # Reconstruct the original entity reference.
+        if name2codepoint.has_key(ref):
+            self.pieces.append('&%(ref)s;' % locals())
+        else:
+            self.pieces.append('&amp;%(ref)s' % locals())
+
+    def handle_data(self, text):
+        # called for each block of plain text, i.e. outside of any tag and
+        # not containing any character or entity references
+        # Store the original text verbatim.
+        if _debug: sys.stderr.write('_BaseHTMLProcessor, handle_data, text=%s\n' % text)
+        self.pieces.append(text)
+        
+    def handle_comment(self, text):
+        # called for each HTML comment, e.g. <!-- insert Javascript code here -->
+        # Reconstruct the original comment.
+        self.pieces.append('<!--%(text)s-->' % locals())
+        
+    def handle_pi(self, text):
+        # called for each processing instruction, e.g. <?instruction>
+        # Reconstruct original processing instruction.
+        self.pieces.append('<?%(text)s>' % locals())
+
+    def handle_decl(self, text):
+        # called for the DOCTYPE, if present, e.g.
+        # <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
+        #     "http://www.w3.org/TR/html4/loose.dtd">
+        # Reconstruct original DOCTYPE
+        self.pieces.append('<!%(text)s>' % locals())
+        
+    _new_declname_match = re.compile(r'[a-zA-Z][-_.a-zA-Z0-9:]*\s*').match
+    def _scan_name(self, i, declstartpos):
+        rawdata = self.rawdata
+        n = len(rawdata)
+        if i == n:
+            return None, -1
+        m = self._new_declname_match(rawdata, i)
+        if m:
+            s = m.group()
+            name = s.strip()
+            if (i + len(s)) == n:
+                return None, -1  # end of buffer
+            return name.lower(), m.end()
+        else:
+            self.handle_data(rawdata)
+#            self.updatepos(declstartpos, i)
+            return None, -1
+
+    def convert_charref(self, name):
+        return '&#%s;' % name
+
+    def convert_entityref(self, name):
+        return '&%s;' % name
+
+    def output(self):
+        '''Return processed HTML as a single string'''
+        return ''.join([str(p) for p in self.pieces])
+
+class _LooseFeedParser(_FeedParserMixin, _BaseHTMLProcessor):
+    def __init__(self, baseuri, baselang, encoding, entities):
+        sgmllib.SGMLParser.__init__(self)
+        _FeedParserMixin.__init__(self, baseuri, baselang, encoding)
+        _BaseHTMLProcessor.__init__(self, encoding, 'application/xhtml+xml')
+        self.entities=entities
+
+    def decodeEntities(self, element, data):
+        data = data.replace('&#60;', '&lt;')
+        data = data.replace('&#x3c;', '&lt;')
+        data = data.replace('&#x3C;', '&lt;')
+        data = data.replace('&#62;', '&gt;')
+        data = data.replace('&#x3e;', '&gt;')
+        data = data.replace('&#x3E;', '&gt;')
+        data = data.replace('&#38;', '&amp;')
+        data = data.replace('&#x26;', '&amp;')
+        data = data.replace('&#34;', '&quot;')
+        data = data.replace('&#x22;', '&quot;')
+        data = data.replace('&#39;', '&apos;')
+        data = data.replace('&#x27;', '&apos;')
+        if self.contentparams.has_key('type') and not self.contentparams.get('type', 'xml').endswith('xml'):
+            data = data.replace('&lt;', '<')
+            data = data.replace('&gt;', '>')
+            data = data.replace('&amp;', '&')
+            data = data.replace('&quot;', '"')
+            data = data.replace('&apos;', "'")
+        return data
+        
+    def strattrs(self, attrs):
+        return ''.join([' %s="%s"' % (n,v.replace('"','&quot;')) for n,v in attrs])
+
+class _MicroformatsParser:
+    STRING = 1
+    DATE = 2
+    URI = 3
+    NODE = 4
+    EMAIL = 5
+
+    known_xfn_relationships = ['contact', 'acquaintance', 'friend', 'met', 'co-worker', 'coworker', 'colleague', 'co-resident', 'coresident', 'neighbor', 'child', 'parent', 'sibling', 'brother', 'sister', 'spouse', 'wife', 'husband', 'kin', 'relative', 'muse', 'crush', 'date', 'sweetheart', 'me']
+    known_binary_extensions =  ['zip','rar','exe','gz','tar','tgz','tbz2','bz2','z','7z','dmg','img','sit','sitx','hqx','deb','rpm','bz2','jar','rar','iso','bin','msi','mp2','mp3','ogg','ogm','mp4','m4v','m4a','avi','wma','wmv']
+
+    def __init__(self, data, baseuri, encoding):
+        self.document = BeautifulSoup.BeautifulSoup(data)
+        self.baseuri = baseuri
+        self.encoding = encoding
+        if type(data) == type(u''):
+            data = data.encode(encoding)
+        self.tags = []
+        self.enclosures = []
+        self.xfn = []
+        self.vcard = None
+    
+    def vcardEscape(self, s):
+        if type(s) in (type(''), type(u'')):
+            s = s.replace(',', '\\,').replace(';', '\\;').replace('\n', '\\n')
+        return s
+    
+    def vcardFold(self, s):
+        s = re.sub(';+$', '', s)
+        sFolded = ''
+        iMax = 75
+        sPrefix = ''
+        while len(s) > iMax:
+            sFolded += sPrefix + s[:iMax] + '\n'
+            s = s[iMax:]
+            sPrefix = ' '
+            iMax = 74
+        sFolded += sPrefix + s
+        return sFolded
+
+    def normalize(self, s):
+        return re.sub(r'\s+', ' ', s).strip()
+    
+    def unique(self, aList):
+        results = []
+        for element in aList:
+            if element not in results:
+                results.append(element)
+        return results
+    
+    def toISO8601(self, dt):
+        return time.strftime('%Y-%m-%dT%H:%M:%SZ', dt)
+
+    def getPropertyValue(self, elmRoot, sProperty, iPropertyType=4, bAllowMultiple=0, bAutoEscape=0):
+        all = lambda x: 1
+        sProperty = sProperty.lower()
+        bFound = 0
+        bNormalize = 1
+        propertyMatch = {'class': re.compile(r'\b%s\b' % sProperty)}
+        if bAllowMultiple and (iPropertyType != self.NODE):
+            snapResults = []
+            containers = elmRoot(['ul', 'ol'], propertyMatch)
+            for container in containers:
+                snapResults.extend(container('li'))
+            bFound = (len(snapResults) != 0)
+        if not bFound:
+            snapResults = elmRoot(all, propertyMatch)
+            bFound = (len(snapResults) != 0)
+        if (not bFound) and (sProperty == 'value'):
+            snapResults = elmRoot('pre')
+            bFound = (len(snapResults) != 0)
+            bNormalize = not bFound
+            if not bFound:
+                snapResults = [elmRoot]
+                bFound = (len(snapResults) != 0)
+        arFilter = []
+        if sProperty == 'vcard':
+            snapFilter = elmRoot(all, propertyMatch)
+            for node in snapFilter:
+                if node.findParent(all, propertyMatch):
+                    arFilter.append(node)
+        arResults = []
+        for node in snapResults:
+            if node not in arFilter:
+                arResults.append(node)
+        bFound = (len(arResults) != 0)
+        if not bFound:
+            if bAllowMultiple: return []
+            elif iPropertyType == self.STRING: return ''
+            elif iPropertyType == self.DATE: return None
+            elif iPropertyType == self.URI: return ''
+            elif iPropertyType == self.NODE: return None
+            else: return None
+        arValues = []
+        for elmResult in arResults:
+            sValue = None
+            if iPropertyType == self.NODE:
+                if bAllowMultiple:
+                    arValues.append(elmResult)
+                    continue
+                else:
+                    return elmResult
+            sNodeName = elmResult.name.lower()
+            if (iPropertyType == self.EMAIL) and (sNodeName == 'a'):
+                sValue = (elmResult.get('href') or '').split('mailto:').pop().split('?')[0]
+            if sValue:
+                sValue = bNormalize and self.normalize(sValue) or sValue.strip()
+            if (not sValue) and (sNodeName == 'abbr'):
+                sValue = elmResult.get('title')
+            if sValue:
+                sValue = bNormalize and self.normalize(sValue) or sValue.strip()
+            if (not sValue) and (iPropertyType == self.URI):
+                if sNodeName == 'a': sValue = elmResult.get('href')
+                elif sNodeName == 'img': sValue = elmResult.get('src')
+                elif sNodeName == 'object': sValue = elmResult.get('data')
+            if sValue:
+                sValue = bNormalize and self.normalize(sValue) or sValue.strip()
+            if (not sValue) and (sNodeName == 'img'):
+                sValue = elmResult.get('alt')
+            if sValue:
+                sValue = bNormalize and self.normalize(sValue) or sValue.strip()
+            if not sValue:
+                sValue = elmResult.renderContents()
+                sValue = re.sub(r'<\S[^>]*>', '', sValue)
+                sValue = sValue.replace('\r\n', '\n')
+                sValue = sValue.replace('\r', '\n')
+            if sValue:
+                sValue = bNormalize and self.normalize(sValue) or sValue.strip()
+            if not sValue: continue
+            if iPropertyType == self.DATE:
+                sValue = _parse_date_iso8601(sValue)
+            if bAllowMultiple:
+                arValues.append(bAutoEscape and self.vcardEscape(sValue) or sValue)
+            else:
+                return bAutoEscape and self.vcardEscape(sValue) or sValue
+        return arValues
+
+    def findVCards(self, elmRoot, bAgentParsing=0):
+        sVCards = ''
+        
+        if not bAgentParsing:
+            arCards = self.getPropertyValue(elmRoot, 'vcard', bAllowMultiple=1)
+        else:
+            arCards = [elmRoot]
+            
+        for elmCard in arCards:
+            arLines = []
+            
+            def processSingleString(sProperty):
+                sValue = self.getPropertyValue(elmCard, sProperty, self.STRING, bAutoEscape=1).decode(self.encoding)
+                if sValue:
+                    arLines.append(self.vcardFold(sProperty.upper() + ':' + sValue))
+                return sValue or u''
+            
+            def processSingleURI(sProperty):
+                sValue = self.getPropertyValue(elmCard, sProperty, self.URI)
+                if sValue:
+                    sContentType = ''
+                    sEncoding = ''
+                    sValueKey = ''
+                    if sValue.startswith('data:'):
+                        sEncoding = ';ENCODING=b'
+                        sContentType = sValue.split(';')[0].split('/').pop()
+                        sValue = sValue.split(',', 1).pop()
+                    else:
+                        elmValue = self.getPropertyValue(elmCard, sProperty)
+                        if elmValue:
+                            if sProperty != 'url':
+                                sValueKey = ';VALUE=uri'
+                            sContentType = elmValue.get('type', '').strip().split('/').pop().strip()
+                    sContentType = sContentType.upper()
+                    if sContentType == 'OCTET-STREAM':
+                        sContentType = ''
+                    if sContentType:
+                        sContentType = ';TYPE=' + sContentType.upper()
+                    arLines.append(self.vcardFold(sProperty.upper() + sEncoding + sContentType + sValueKey + ':' + sValue))
+    
+            def processTypeValue(sProperty, arDefaultType, arForceType=None):
+                arResults = self.getPropertyValue(elmCard, sProperty, bAllowMultiple=1)
+                for elmResult in arResults:
+                    arType = self.getPropertyValue(elmResult, 'type', self.STRING, 1, 1)
+                    if arForceType:
+                        arType = self.unique(arForceType + arType)
+                    if not arType:
+                        arType = arDefaultType
+                    sValue = self.getPropertyValue(elmResult, 'value', self.EMAIL, 0)
+                    if sValue:
+                        arLines.append(self.vcardFold(sProperty.upper() + ';TYPE=' + ','.join(arType) + ':' + sValue))
+            
+            # AGENT
+            # must do this before all other properties because it is destructive
+            # (removes nested class="vcard" nodes so they don't interfere with
+            # this vcard's other properties)
+            arAgent = self.getPropertyValue(elmCard, 'agent', bAllowMultiple=1)
+            for elmAgent in arAgent:
+                if re.compile(r'\bvcard\b').search(elmAgent.get('class')):
+                    sAgentValue = self.findVCards(elmAgent, 1) + '\n'
+                    sAgentValue = sAgentValue.replace('\n', '\\n')
+                    sAgentValue = sAgentValue.replace(';', '\\;')
+                    if sAgentValue:
+                        arLines.append(self.vcardFold('AGENT:' + sAgentValue))
+                    # Completely remove the agent element from the parse tree
+                    elmAgent.extract()
+                else:
+                    sAgentValue = self.getPropertyValue(elmAgent, 'value', self.URI, bAutoEscape=1);
+                    if sAgentValue:
+                        arLines.append(self.vcardFold('AGENT;VALUE=uri:' + sAgentValue))
+    
+            # FN (full name)
+            sFN = processSingleString('fn')
+            
+            # N (name)
+            elmName = self.getPropertyValue(elmCard, 'n')
+            if elmName:
+                sFamilyName = self.getPropertyValue(elmName, 'family-name', self.STRING, bAutoEscape=1)
+                sGivenName = self.getPropertyValue(elmName, 'given-name', self.STRING, bAutoEscape=1)
+                arAdditionalNames = self.getPropertyValue(elmName, 'additional-name', self.STRING, 1, 1) + self.getPropertyValue(elmName, 'additional-names', self.STRING, 1, 1)
+                arHonorificPrefixes = self.getPropertyValue(elmName, 'honorific-prefix', self.STRING, 1, 1) + self.getPropertyValue(elmName, 'honorific-prefixes', self.STRING, 1, 1)
+                arHonorificSuffixes = self.getPropertyValue(elmName, 'honorific-suffix', self.STRING, 1, 1) + self.getPropertyValue(elmName, 'honorific-suffixes', self.STRING, 1, 1)
+                arLines.append(self.vcardFold('N:' + sFamilyName + ';' + 
+                                         sGivenName + ';' +
+                                         ','.join(arAdditionalNames) + ';' +
+                                         ','.join(arHonorificPrefixes) + ';' +
+                                         ','.join(arHonorificSuffixes)))
+            elif sFN:
+                # implied "N" optimization
+                # http://microformats.org/wiki/hcard#Implied_.22N.22_Optimization
+                arNames = self.normalize(sFN).split()
+                if len(arNames) == 2:
+                    bFamilyNameFirst = (arNames[0].endswith(',') or
+                                        len(arNames[1]) == 1 or
+                                        ((len(arNames[1]) == 2) and (arNames[1].endswith('.'))))
+                    if bFamilyNameFirst:
+                        arLines.append(self.vcardFold('N:' + arNames[0] + ';' + arNames[1]))
+                    else:
+                        arLines.append(self.vcardFold('N:' + arNames[1] + ';' + arNames[0]))
+    
+            # SORT-STRING
+            sSortString = self.getPropertyValue(elmCard, 'sort-string', self.STRING, bAutoEscape=1)
+            if sSortString:
+                arLines.append(self.vcardFold('SORT-STRING:' + sSortString))
+            
+            # NICKNAME
+            arNickname = self.getPropertyValue(elmCard, 'nickname', self.STRING, 1, 1)
+            if arNickname:
+                arLines.append(self.vcardFold('NICKNAME:' + ','.join(arNickname)))
+            
+            # PHOTO
+            processSingleURI('photo')
+            
+            # BDAY
+            dtBday = self.getPropertyValue(elmCard, 'bday', self.DATE)
+            if dtBday:
+                arLines.append(self.vcardFold('BDAY:' + self.toISO8601(dtBday)))
+            
+            # ADR (address)
+            arAdr = self.getPropertyValue(elmCard, 'adr', bAllowMultiple=1)
+            for elmAdr in arAdr:
+                arType = self.getPropertyValue(elmAdr, 'type', self.STRING, 1, 1)
+                if not arType:
+                    arType = ['intl','postal','parcel','work'] # default adr types, see RFC 2426 section 3.2.1
+                sPostOfficeBox = self.getPropertyValue(elmAdr, 'post-office-box', self.STRING, 0, 1)
+                sExtendedAddress = self.getPropertyValue(elmAdr, 'extended-address', self.STRING, 0, 1)
+                sStreetAddress = self.getPropertyValue(elmAdr, 'street-address', self.STRING, 0, 1)
+                sLocality = self.getPropertyValue(elmAdr, 'locality', self.STRING, 0, 1)
+                sRegion = self.getPropertyValue(elmAdr, 'region', self.STRING, 0, 1)
+                sPostalCode = self.getPropertyValue(elmAdr, 'postal-code', self.STRING, 0, 1)
+                sCountryName = self.getPropertyValue(elmAdr, 'country-name', self.STRING, 0, 1)
+                arLines.append(self.vcardFold('ADR;TYPE=' + ','.join(arType) + ':' +
+                                         sPostOfficeBox + ';' +
+                                         sExtendedAddress + ';' +
+                                         sStreetAddress + ';' +
+                                         sLocality + ';' +
+                                         sRegion + ';' +
+                                         sPostalCode + ';' +
+                                         sCountryName))
+            
+            # LABEL
+            processTypeValue('label', ['intl','postal','parcel','work'])
+            
+            # TEL (phone number)
+            processTypeValue('tel', ['voice'])
+            
+            # EMAIL
+            processTypeValue('email', ['internet'], ['internet'])
+            
+            # MAILER
+            processSingleString('mailer')
+            
+            # TZ (timezone)
+            processSingleString('tz')
+    
+            # GEO (geographical information)
+            elmGeo = self.getPropertyValue(elmCard, 'geo')
+            if elmGeo:
+                sLatitude = self.getPropertyValue(elmGeo, 'latitude', self.STRING, 0, 1)
+                sLongitude = self.getPropertyValue(elmGeo, 'longitude', self.STRING, 0, 1)
+                arLines.append(self.vcardFold('GEO:' + sLatitude + ';' + sLongitude))
+    
+            # TITLE
+            processSingleString('title')
+    
+            # ROLE
+            processSingleString('role')
+
+            # LOGO
+            processSingleURI('logo')
+    
+            # ORG (organization)
+            elmOrg = self.getPropertyValue(elmCard, 'org')
+            if elmOrg:
+                sOrganizationName = self.getPropertyValue(elmOrg, 'organization-name', self.STRING, 0, 1)
+                if not sOrganizationName:
+                    # implied "organization-name" optimization
+                    # http://microformats.org/wiki/hcard#Implied_.22organization-name.22_Optimization
+                    sOrganizationName = self.getPropertyValue(elmCard, 'org', self.STRING, 0, 1)
+                    if sOrganizationName:
+                        arLines.append(self.vcardFold('ORG:' + sOrganizationName))
+                else:
+                    arOrganizationUnit = self.getPropertyValue(elmOrg, 'organization-unit', self.STRING, 1, 1)
+                    arLines.append(self.vcardFold('ORG:' + sOrganizationName + ';' + ';'.join(arOrganizationUnit)))
+    
+            # CATEGORY
+            arCategory = self.getPropertyValue(elmCard, 'category', self.STRING, 1, 1) + self.getPropertyValue(elmCard, 'categories', self.STRING, 1, 1)
+            if arCategory:
+                arLines.append(self.vcardFold('CATEGORIES:' + ','.join(arCategory)))
+    
+            # NOTE
+            processSingleString('note')
+    
+            # REV
+            processSingleString('rev')
+    
+            # SOUND
+            processSingleURI('sound')
+    
+            # UID
+            processSingleString('uid')
+    
+            # URL
+            processSingleURI('url')
+    
+            # CLASS
+            processSingleString('class')
+    
+            # KEY
+            processSingleURI('key')
+    
+            if arLines:
+                arLines = [u'BEGIN:vCard',u'VERSION:3.0'] + arLines + [u'END:vCard']
+                sVCards += u'\n'.join(arLines) + u'\n'
+    
+        return sVCards.strip()
+    
+    def isProbablyDownloadable(self, elm):
+        attrsD = elm.attrMap
+        if not attrsD.has_key('href'): return 0
+        linktype = attrsD.get('type', '').strip()
+        if linktype.startswith('audio/') or \
+           linktype.startswith('video/') or \
+           (linktype.startswith('application/') and not linktype.endswith('xml')):
+            return 1
+        path = urlparse.urlparse(attrsD['href'])[2]
+        if path.find('.') == -1: return 0
+        fileext = path.split('.').pop().lower()
+        return fileext in self.known_binary_extensions
+
+    def findTags(self):
+        all = lambda x: 1
+        for elm in self.document(all, {'rel': re.compile(r'\btag\b')}):
+            href = elm.get('href')
+            if not href: continue
+            urlscheme, domain, path, params, query, fragment = \
+                       urlparse.urlparse(_urljoin(self.baseuri, href))
+            segments = path.split('/')
+            tag = segments.pop()
+            if not tag:
+                tag = segments.pop()
+            tagscheme = urlparse.urlunparse((urlscheme, domain, '/'.join(segments), '', '', ''))
+            if not tagscheme.endswith('/'):
+                tagscheme += '/'
+            self.tags.append(FeedParserDict({"term": tag, "scheme": tagscheme, "label": elm.string or ''}))
+
+    def findEnclosures(self):
+        all = lambda x: 1
+        enclosure_match = re.compile(r'\benclosure\b')
+        for elm in self.document(all, {'href': re.compile(r'.+')}):
+            if not enclosure_match.search(elm.get('rel', '')) and not self.isProbablyDownloadable(elm): continue
+            if elm.attrMap not in self.enclosures:
+                self.enclosures.append(elm.attrMap)
+                if elm.string and not elm.get('title'):
+                    self.enclosures[-1]['title'] = elm.string
+
+    def findXFN(self):
+        all = lambda x: 1
+        for elm in self.document(all, {'rel': re.compile('.+'), 'href': re.compile('.+')}):
+            rels = elm.get('rel', '').split()
+            xfn_rels = []
+            for rel in rels:
+                if rel in self.known_xfn_relationships:
+                    xfn_rels.append(rel)
+            if xfn_rels:
+                self.xfn.append({"relationships": xfn_rels, "href": elm.get('href', ''), "name": elm.string})
+
+def _parseMicroformats(htmlSource, baseURI, encoding):
+    if not BeautifulSoup: return
+    if _debug: sys.stderr.write('entering _parseMicroformats\n')
+    try:
+        p = _MicroformatsParser(htmlSource, baseURI, encoding)
+    except UnicodeEncodeError:
+        # sgmllib throws this exception when performing lookups of tags
+        # with non-ASCII characters in them.
+        return
+    p.vcard = p.findVCards(p.document)
+    p.findTags()
+    p.findEnclosures()
+    p.findXFN()
+    return {"tags": p.tags, "enclosures": p.enclosures, "xfn": p.xfn, "vcard": p.vcard}
+
+class _RelativeURIResolver(_BaseHTMLProcessor):
+    relative_uris = [('a', 'href'),
+                     ('applet', 'codebase'),
+                     ('area', 'href'),
+                     ('blockquote', 'cite'),
+                     ('body', 'background'),
+                     ('del', 'cite'),
+                     ('form', 'action'),
+                     ('frame', 'longdesc'),
+                     ('frame', 'src'),
+                     ('iframe', 'longdesc'),
+                     ('iframe', 'src'),
+                     ('head', 'profile'),
+                     ('img', 'longdesc'),
+                     ('img', 'src'),
+                     ('img', 'usemap'),
+                     ('input', 'src'),
+                     ('input', 'usemap'),
+                     ('ins', 'cite'),
+                     ('link', 'href'),
+                     ('object', 'classid'),
+                     ('object', 'codebase'),
+                     ('object', 'data'),
+                     ('object', 'usemap'),
+                     ('q', 'cite'),
+                     ('script', 'src')]
+
+    def __init__(self, baseuri, encoding, _type):
+        _BaseHTMLProcessor.__init__(self, encoding, _type)
+        self.baseuri = baseuri
+
+    def resolveURI(self, uri):
+        return _makeSafeAbsoluteURI(_urljoin(self.baseuri, uri.strip()))
+    
+    def unknown_starttag(self, tag, attrs):
+        if _debug:
+            sys.stderr.write('tag: [%s] with attributes: [%s]\n' % (tag, str(attrs)))
+        attrs = self.normalize_attrs(attrs)
+        attrs = [(key, ((tag, key) in self.relative_uris) and self.resolveURI(value) or value) for key, value in attrs]
+        _BaseHTMLProcessor.unknown_starttag(self, tag, attrs)
+
+def _resolveRelativeURIs(htmlSource, baseURI, encoding, _type):
+    if _debug:
+        sys.stderr.write('entering _resolveRelativeURIs\n')
+
+    p = _RelativeURIResolver(baseURI, encoding, _type)
+    p.feed(htmlSource)
+    return p.output()
+
+def _makeSafeAbsoluteURI(base, rel=None):
+    # bail if ACCEPTABLE_URI_SCHEMES is empty
+    if not ACCEPTABLE_URI_SCHEMES:
+        return _urljoin(base, rel or u'')
+    if not base:
+        return rel or u''
+    if not rel:
+        if base.strip().split(':', 1)[0] not in ACCEPTABLE_URI_SCHEMES:
+            return u''
+        return base
+    uri = _urljoin(base, rel)
+    if uri.strip().split(':', 1)[0] not in ACCEPTABLE_URI_SCHEMES:
+        return u''
+    return uri
+
+class _HTMLSanitizer(_BaseHTMLProcessor):
+    acceptable_elements = ['a', 'abbr', 'acronym', 'address', 'area',
+        'article', 'aside', 'audio', 'b', 'big', 'blockquote', 'br', 'button',
+        'canvas', 'caption', 'center', 'cite', 'code', 'col', 'colgroup',
+        'command', 'datagrid', 'datalist', 'dd', 'del', 'details', 'dfn',
+        'dialog', 'dir', 'div', 'dl', 'dt', 'em', 'event-source', 'fieldset',
+        'figcaption', 'figure', 'footer', 'font', 'form', 'header', 'h1',
+        'h2', 'h3', 'h4', 'h5', 'h6', 'hr', 'i', 'img', 'input', 'ins',
+        'keygen', 'kbd', 'label', 'legend', 'li', 'm', 'map', 'menu', 'meter',
+        'multicol', 'nav', 'nextid', 'ol', 'output', 'optgroup', 'option',
+        'p', 'pre', 'progress', 'q', 's', 'samp', 'section', 'select',
+        'small', 'sound', 'source', 'spacer', 'span', 'strike', 'strong',
+        'sub', 'sup', 'table', 'tbody', 'td', 'textarea', 'time', 'tfoot',
+        'th', 'thead', 'tr', 'tt', 'u', 'ul', 'var', 'video', 'noscript']
+
+    acceptable_attributes = ['abbr', 'accept', 'accept-charset', 'accesskey',
+      'action', 'align', 'alt', 'autocomplete', 'autofocus', 'axis',
+      'background', 'balance', 'bgcolor', 'bgproperties', 'border',
+      'bordercolor', 'bordercolordark', 'bordercolorlight', 'bottompadding',
+      'cellpadding', 'cellspacing', 'ch', 'challenge', 'char', 'charoff',
+      'choff', 'charset', 'checked', 'cite', 'class', 'clear', 'color', 'cols',
+      'colspan', 'compact', 'contenteditable', 'controls', 'coords', 'data',
+      'datafld', 'datapagesize', 'datasrc', 'datetime', 'default', 'delay',
+      'dir', 'disabled', 'draggable', 'dynsrc', 'enctype', 'end', 'face', 'for',
+      'form', 'frame', 'galleryimg', 'gutter', 'headers', 'height', 'hidefocus',
+      'hidden', 'high', 'href', 'hreflang', 'hspace', 'icon', 'id', 'inputmode',
+      'ismap', 'keytype', 'label', 'leftspacing', 'lang', 'list', 'longdesc',
+      'loop', 'loopcount', 'loopend', 'loopstart', 'low', 'lowsrc', 'max',
+      'maxlength', 'media', 'method', 'min', 'multiple', 'name', 'nohref',
+      'noshade', 'nowrap', 'open', 'optimum', 'pattern', 'ping', 'point-size',
+      'prompt', 'pqg', 'radiogroup', 'readonly', 'rel', 'repeat-max',
+      'repeat-min', 'replace', 'required', 'rev', 'rightspacing', 'rows',
+      'rowspan', 'rules', 'scope', 'selected', 'shape', 'size', 'span', 'src',
+      'start', 'step', 'summary', 'suppress', 'tabindex', 'target', 'template',
+      'title', 'toppadding', 'type', 'unselectable', 'usemap', 'urn', 'valign',
+      'value', 'variable', 'volume', 'vspace', 'vrml', 'width', 'wrap',
+      'xml:lang']
+
+    unacceptable_elements_with_end_tag = ['script', 'applet', 'style']
+
+    acceptable_css_properties = ['azimuth', 'background-color',
+      'border-bottom-color', 'border-collapse', 'border-color',
+      'border-left-color', 'border-right-color', 'border-top-color', 'clear',
+      'color', 'cursor', 'direction', 'display', 'elevation', 'float', 'font',
+      'font-family', 'font-size', 'font-style', 'font-variant', 'font-weight',
+      'height', 'letter-spacing', 'line-height', 'overflow', 'pause',
+      'pause-after', 'pause-before', 'pitch', 'pitch-range', 'richness',
+      'speak', 'speak-header', 'speak-numeral', 'speak-punctuation',
+      'speech-rate', 'stress', 'text-align', 'text-decoration', 'text-indent',
+      'unicode-bidi', 'vertical-align', 'voice-family', 'volume',
+      'white-space', 'width']
+
+    # survey of common keywords found in feeds
+    acceptable_css_keywords = ['auto', 'aqua', 'black', 'block', 'blue',
+      'bold', 'both', 'bottom', 'brown', 'center', 'collapse', 'dashed',
+      'dotted', 'fuchsia', 'gray', 'green', '!important', 'italic', 'left',
+      'lime', 'maroon', 'medium', 'none', 'navy', 'normal', 'nowrap', 'olive',
+      'pointer', 'purple', 'red', 'right', 'solid', 'silver', 'teal', 'top',
+      'transparent', 'underline', 'white', 'yellow']
+
+    valid_css_values = re.compile('^(#[0-9a-f]+|rgb\(\d+%?,\d*%?,?\d*%?\)?|' +
+      '\d{0,2}\.?\d{0,2}(cm|em|ex|in|mm|pc|pt|px|%|,|\))?)$')
+
+    mathml_elements = ['annotation', 'annotation-xml', 'maction', 'math',
+      'merror', 'mfenced', 'mfrac', 'mi', 'mmultiscripts', 'mn', 'mo', 'mover', 'mpadded',
+      'mphantom', 'mprescripts', 'mroot', 'mrow', 'mspace', 'msqrt', 'mstyle',
+      'msub', 'msubsup', 'msup', 'mtable', 'mtd', 'mtext', 'mtr', 'munder',
+      'munderover', 'none', 'semantics']
+
+    mathml_attributes = ['actiontype', 'align', 'columnalign', 'columnalign',
+      'columnalign', 'close', 'columnlines', 'columnspacing', 'columnspan', 'depth',
+      'display', 'displaystyle', 'encoding', 'equalcolumns', 'equalrows',
+      'fence', 'fontstyle', 'fontweight', 'frame', 'height', 'linethickness',
+      'lspace', 'mathbackground', 'mathcolor', 'mathvariant', 'mathvariant',
+      'maxsize', 'minsize', 'open', 'other', 'rowalign', 'rowalign', 'rowalign',
+      'rowlines', 'rowspacing', 'rowspan', 'rspace', 'scriptlevel', 'selection',
+      'separator', 'separators', 'stretchy', 'width', 'width', 'xlink:href',
+      'xlink:show', 'xlink:type', 'xmlns', 'xmlns:xlink']
+
+    # svgtiny - foreignObject + linearGradient + radialGradient + stop
+    svg_elements = ['a', 'animate', 'animateColor', 'animateMotion',
+      'animateTransform', 'circle', 'defs', 'desc', 'ellipse', 'foreignObject',
+      'font-face', 'font-face-name', 'font-face-src', 'g', 'glyph', 'hkern', 
+      'linearGradient', 'line', 'marker', 'metadata', 'missing-glyph', 'mpath',
+      'path', 'polygon', 'polyline', 'radialGradient', 'rect', 'set', 'stop',
+      'svg', 'switch', 'text', 'title', 'tspan', 'use']
+
+    # svgtiny + class + opacity + offset + xmlns + xmlns:xlink
+    svg_attributes = ['accent-height', 'accumulate', 'additive', 'alphabetic',
+       'arabic-form', 'ascent', 'attributeName', 'attributeType',
+       'baseProfile', 'bbox', 'begin', 'by', 'calcMode', 'cap-height',
+       'class', 'color', 'color-rendering', 'content', 'cx', 'cy', 'd', 'dx',
+       'dy', 'descent', 'display', 'dur', 'end', 'fill', 'fill-opacity',
+       'fill-rule', 'font-family', 'font-size', 'font-stretch', 'font-style',
+       'font-variant', 'font-weight', 'from', 'fx', 'fy', 'g1', 'g2',
+       'glyph-name', 'gradientUnits', 'hanging', 'height', 'horiz-adv-x',
+       'horiz-origin-x', 'id', 'ideographic', 'k', 'keyPoints', 'keySplines',
+       'keyTimes', 'lang', 'mathematical', 'marker-end', 'marker-mid',
+       'marker-start', 'markerHeight', 'markerUnits', 'markerWidth', 'max',
+       'min', 'name', 'offset', 'opacity', 'orient', 'origin',
+       'overline-position', 'overline-thickness', 'panose-1', 'path',
+       'pathLength', 'points', 'preserveAspectRatio', 'r', 'refX', 'refY',
+       'repeatCount', 'repeatDur', 'requiredExtensions', 'requiredFeatures',
+       'restart', 'rotate', 'rx', 'ry', 'slope', 'stemh', 'stemv',
+       'stop-color', 'stop-opacity', 'strikethrough-position',
+       'strikethrough-thickness', 'stroke', 'stroke-dasharray',
+       'stroke-dashoffset', 'stroke-linecap', 'stroke-linejoin',
+       'stroke-miterlimit', 'stroke-opacity', 'stroke-width', 'systemLanguage',
+       'target', 'text-anchor', 'to', 'transform', 'type', 'u1', 'u2',
+       'underline-position', 'underline-thickness', 'unicode', 'unicode-range',
+       'units-per-em', 'values', 'version', 'viewBox', 'visibility', 'width',
+       'widths', 'x', 'x-height', 'x1', 'x2', 'xlink:actuate', 'xlink:arcrole',
+       'xlink:href', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type',
+       'xml:base', 'xml:lang', 'xml:space', 'xmlns', 'xmlns:xlink', 'y', 'y1',
+       'y2', 'zoomAndPan']
+
+    svg_attr_map = None
+    svg_elem_map = None
+
+    acceptable_svg_properties = [ 'fill', 'fill-opacity', 'fill-rule',
+      'stroke', 'stroke-width', 'stroke-linecap', 'stroke-linejoin',
+      'stroke-opacity']
+
+    def reset(self):
+        _BaseHTMLProcessor.reset(self)
+        self.unacceptablestack = 0
+        self.mathmlOK = 0
+        self.svgOK = 0
+        
+    def unknown_starttag(self, tag, attrs):
+        acceptable_attributes = self.acceptable_attributes
+        keymap = {}
+        if not tag in self.acceptable_elements or self.svgOK:
+            if tag in self.unacceptable_elements_with_end_tag:
+                self.unacceptablestack += 1
+
+            # add implicit namespaces to html5 inline svg/mathml
+            if self._type.endswith('html'):
+                if not dict(attrs).get('xmlns'):
+                    if tag=='svg':
+                        attrs.append( ('xmlns','http://www.w3.org/2000/svg') )
+                    if tag=='math':
+                        attrs.append( ('xmlns','http://www.w3.org/1998/Math/MathML') )
+
+            # not otherwise acceptable, perhaps it is MathML or SVG?
+            if tag=='math' and ('xmlns','http://www.w3.org/1998/Math/MathML') in attrs:
+                self.mathmlOK += 1
+            if tag=='svg' and ('xmlns','http://www.w3.org/2000/svg') in attrs:
+                self.svgOK += 1
+
+            # chose acceptable attributes based on tag class, else bail
+            if  self.mathmlOK and tag in self.mathml_elements:
+                acceptable_attributes = self.mathml_attributes
+            elif self.svgOK and tag in self.svg_elements:
+                # for most vocabularies, lowercasing is a good idea.  Many
+                # svg elements, however, are camel case
+                if not self.svg_attr_map:
+                    lower=[attr.lower() for attr in self.svg_attributes]
+                    mix=[a for a in self.svg_attributes if a not in lower]
+                    self.svg_attributes = lower
+                    self.svg_attr_map = dict([(a.lower(),a) for a in mix])
+
+                    lower=[attr.lower() for attr in self.svg_elements]
+                    mix=[a for a in self.svg_elements if a not in lower]
+                    self.svg_elements = lower
+                    self.svg_elem_map = dict([(a.lower(),a) for a in mix])
+                acceptable_attributes = self.svg_attributes
+                tag = self.svg_elem_map.get(tag,tag)
+                keymap = self.svg_attr_map
+            elif not tag in self.acceptable_elements:
+                return
+
+        # declare xlink namespace, if needed
+        if self.mathmlOK or self.svgOK:
+            if filter(lambda (n,v): n.startswith('xlink:'),attrs):
+                if not ('xmlns:xlink','http://www.w3.org/1999/xlink') in attrs:
+                    attrs.append(('xmlns:xlink','http://www.w3.org/1999/xlink'))
+
+        clean_attrs = []
+        for key, value in self.normalize_attrs(attrs):
+            if key in acceptable_attributes:
+                key=keymap.get(key,key)
+                clean_attrs.append((key,value))
+            elif key=='style':
+                clean_value = self.sanitize_style(value)
+                if clean_value: clean_attrs.append((key,clean_value))
+        _BaseHTMLProcessor.unknown_starttag(self, tag, clean_attrs)
+        
+    def unknown_endtag(self, tag):
+        if not tag in self.acceptable_elements:
+            if tag in self.unacceptable_elements_with_end_tag:
+                self.unacceptablestack -= 1
+            if self.mathmlOK and tag in self.mathml_elements:
+                if tag == 'math' and self.mathmlOK: self.mathmlOK -= 1
+            elif self.svgOK and tag in self.svg_elements:
+                tag = self.svg_elem_map.get(tag,tag)
+                if tag == 'svg' and self.svgOK: self.svgOK -= 1
+            else:
+                return
+        _BaseHTMLProcessor.unknown_endtag(self, tag)
+
+    def handle_pi(self, text):
+        pass
+
+    def handle_decl(self, text):
+        pass
+
+    def handle_data(self, text):
+        if not self.unacceptablestack:
+            _BaseHTMLProcessor.handle_data(self, text)
+
+    def sanitize_style(self, style):
+        # disallow urls
+        style=re.compile('url\s*\(\s*[^\s)]+?\s*\)\s*').sub(' ',style)
+
+        # gauntlet
+        if not re.match("""^([:,;#%.\sa-zA-Z0-9!]|\w-\w|'[\s\w]+'|"[\s\w]+"|\([\d,\s]+\))*$""", style): return ''
+        # This replaced a regexp that used re.match and was prone to pathological back-tracking.
+        if re.sub("\s*[-\w]+\s*:\s*[^:;]*;?", '', style).strip(): return ''
+
+        clean = []
+        for prop,value in re.findall("([-\w]+)\s*:\s*([^:;]*)",style):
+          if not value: continue
+          if prop.lower() in self.acceptable_css_properties:
+              clean.append(prop + ': ' + value + ';')
+          elif prop.split('-')[0].lower() in ['background','border','margin','padding']:
+              for keyword in value.split():
+                  if not keyword in self.acceptable_css_keywords and \
+                      not self.valid_css_values.match(keyword):
+                      break
+              else:
+                  clean.append(prop + ': ' + value + ';')
+          elif self.svgOK and prop.lower() in self.acceptable_svg_properties:
+              clean.append(prop + ': ' + value + ';')
+
+        return ' '.join(clean)
+
+
+def _sanitizeHTML(htmlSource, encoding, _type):
+    p = _HTMLSanitizer(encoding, _type)
+    htmlSource = htmlSource.replace('<![CDATA[', '&lt;![CDATA[')
+    p.feed(htmlSource)
+    data = p.output()
+    if TIDY_MARKUP:
+        # loop through list of preferred Tidy interfaces looking for one that's installed,
+        # then set up a common _tidy function to wrap the interface-specific API.
+        _tidy = None
+        for tidy_interface in PREFERRED_TIDY_INTERFACES:
+            try:
+                if tidy_interface == "uTidy":
+                    from tidy import parseString as _utidy
+                    def _tidy(data, **kwargs):
+                        return str(_utidy(data, **kwargs))
+                    break
+                elif tidy_interface == "mxTidy":
+                    from mx.Tidy import Tidy as _mxtidy
+                    def _tidy(data, **kwargs):
+                        nerrors, nwarnings, data, errordata = _mxtidy.tidy(data, **kwargs)
+                        return data
+                    break
+            except:
+                pass
+        if _tidy:
+            utf8 = type(data) == type(u'')
+            if utf8:
+                data = data.encode('utf-8')
+            data = _tidy(data, output_xhtml=1, numeric_entities=1, wrap=0, char_encoding="utf8")
+            if utf8:
+                data = unicode(data, 'utf-8')
+            if data.count('<body'):
+                data = data.split('<body', 1)[1]
+                if data.count('>'):
+                    data = data.split('>', 1)[1]
+            if data.count('</body'):
+                data = data.split('</body', 1)[0]
+    data = data.strip().replace('\r\n', '\n')
+    return data
+
+class _FeedURLHandler(urllib2.HTTPDigestAuthHandler, urllib2.HTTPRedirectHandler, urllib2.HTTPDefaultErrorHandler):
+    def http_error_default(self, req, fp, code, msg, headers):
+        if ((code / 100) == 3) and (code != 304):
+            return self.http_error_302(req, fp, code, msg, headers)
+        infourl = urllib.addinfourl(fp, headers, req.get_full_url())
+        infourl.status = code
+        return infourl
+
+    def http_error_302(self, req, fp, code, msg, headers):
+        if headers.dict.has_key('location'):
+            infourl = urllib2.HTTPRedirectHandler.http_error_302(self, req, fp, code, msg, headers)
+        else:
+            infourl = urllib.addinfourl(fp, headers, req.get_full_url())
+        if not hasattr(infourl, 'status'):
+            infourl.status = code
+        return infourl
+
+    def http_error_301(self, req, fp, code, msg, headers):
+        if headers.dict.has_key('location'):
+            infourl = urllib2.HTTPRedirectHandler.http_error_301(self, req, fp, code, msg, headers)
+        else:
+            infourl = urllib.addinfourl(fp, headers, req.get_full_url())
+        if not hasattr(infourl, 'status'):
+            infourl.status = code
+        return infourl
+
+    http_error_300 = http_error_302
+    http_error_303 = http_error_302
+    http_error_307 = http_error_302
+        
+    def http_error_401(self, req, fp, code, msg, headers):
+        # Check if
+        # - server requires digest auth, AND
+        # - we tried (unsuccessfully) with basic auth, AND
+        # - we're using Python 2.3.3 or later (digest auth is irreparably broken in earlier versions)
+        # If all conditions hold, parse authentication information
+        # out of the Authorization header we sent the first time
+        # (for the username and password) and the WWW-Authenticate
+        # header the server sent back (for the realm) and retry
+        # the request with the appropriate digest auth headers instead.
+        # This evil genius hack has been brought to you by Aaron Swartz.
+        host = urlparse.urlparse(req.get_full_url())[1]
+        try:
+            assert sys.version.split()[0] >= '2.3.3'
+            assert base64 != None
+            user, passw = _base64decode(req.headers['Authorization'].split(' ')[1]).split(':')
+            realm = re.findall('realm="([^"]*)"', headers['WWW-Authenticate'])[0]
+            self.add_password(realm, host, user, passw)
+            retry = self.http_error_auth_reqed('www-authenticate', host, req, headers)
+            self.reset_retry_count()
+            return retry
+        except:
+            return self.http_error_default(req, fp, code, msg, headers)
+
+def _open_resource(url_file_stream_or_string, etag, modified, agent, referrer, handlers, request_headers):
+    """URL, filename, or string --> stream
+
+    This function lets you define parsers that take any input source
+    (URL, pathname to local or network file, or actual data as a string)
+    and deal with it in a uniform manner.  Returned object is guaranteed
+    to have all the basic stdio read methods (read, readline, readlines).
+    Just .close() the object when you're done with it.
+
+    If the etag argument is supplied, it will be used as the value of an
+    If-None-Match request header.
+
+    If the modified argument is supplied, it can be a tuple of 9 integers
+    (as returned by gmtime() in the standard Python time module) or a date
+    string in any format supported by feedparser. Regardless, it MUST
+    be in GMT (Greenwich Mean Time). It will be reformatted into an
+    RFC 1123-compliant date and used as the value of an If-Modified-Since
+    request header.
+
+    If the agent argument is supplied, it will be used as the value of a
+    User-Agent request header.
+
+    If the referrer argument is supplied, it will be used as the value of a
+    Referer[sic] request header.
+
+    If handlers is supplied, it is a list of handlers used to build a
+    urllib2 opener.
+
+    if request_headers is supplied it is a dictionary of HTTP request headers
+    that will override the values generated by FeedParser.
+    """
+
+    if hasattr(url_file_stream_or_string, 'read'):
+        return url_file_stream_or_string
+
+    if url_file_stream_or_string == '-':
+        return sys.stdin
+
+    if urlparse.urlparse(url_file_stream_or_string)[0] in ('http', 'https', 'ftp', 'file', 'feed'):
+        # Deal with the feed URI scheme
+        if url_file_stream_or_string.startswith('feed:http'):
+            url_file_stream_or_string = url_file_stream_or_string[5:]
+        elif url_file_stream_or_string.startswith('feed:'):
+            url_file_stream_or_string = 'http:' + url_file_stream_or_string[5:]
+        if not agent:
+            agent = USER_AGENT
+        # test for inline user:password for basic auth
+        auth = None
+        if base64:
+            urltype, rest = urllib.splittype(url_file_stream_or_string)
+            realhost, rest = urllib.splithost(rest)
+            if realhost:
+                user_passwd, realhost = urllib.splituser(realhost)
+                if user_passwd:
+                    url_file_stream_or_string = '%s://%s%s' % (urltype, realhost, rest)
+                    auth = base64.standard_b64encode(user_passwd).strip()
+
+        # iri support
+        try:
+            if isinstance(url_file_stream_or_string,unicode):
+                url_file_stream_or_string = url_file_stream_or_string.encode('idna').decode('utf-8')
+            else:
+                url_file_stream_or_string = url_file_stream_or_string.decode('utf-8').encode('idna').decode('utf-8')
+        except:
+            pass
+
+        # try to open with urllib2 (to use optional headers)
+        request = _build_urllib2_request(url_file_stream_or_string, agent, etag, modified, referrer, auth, request_headers)
+        opener = apply(urllib2.build_opener, tuple(handlers + [_FeedURLHandler()]))
+        opener.addheaders = [] # RMK - must clear so we only send our custom User-Agent
+        try:
+            return opener.open(request)
+        finally:
+            opener.close() # JohnD
+    
+    # try to open with native open function (if url_file_stream_or_string is a filename)
+    try:
+        return open(url_file_stream_or_string, 'rb')
+    except:
+        pass
+
+    # treat url_file_stream_or_string as string
+    return _StringIO(str(url_file_stream_or_string))
+
+def _build_urllib2_request(url, agent, etag, modified, referrer, auth, request_headers):
+    request = urllib2.Request(url)
+    request.add_header('User-Agent', agent)
+    if etag:
+        request.add_header('If-None-Match', etag)
+    if type(modified) == type(''):
+        modified = _parse_date(modified)
+    elif isinstance(modified, datetime.datetime):
+        modified = modified.utctimetuple()
+    if modified:
+        # format into an RFC 1123-compliant timestamp. We can't use
+        # time.strftime() since the %a and %b directives can be affected
+        # by the current locale, but RFC 2616 states that dates must be
+        # in English.
+        short_weekdays = ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
+        months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
+        request.add_header('If-Modified-Since', '%s, %02d %s %04d %02d:%02d:%02d GMT' % (short_weekdays[modified[6]], modified[2], months[modified[1] - 1], modified[0], modified[3], modified[4], modified[5]))
+    if referrer:
+        request.add_header('Referer', referrer)
+    if gzip and zlib:
+        request.add_header('Accept-encoding', 'gzip, deflate')
+    elif gzip:
+        request.add_header('Accept-encoding', 'gzip')
+    elif zlib:
+        request.add_header('Accept-encoding', 'deflate')
+    else:
+        request.add_header('Accept-encoding', '')
+    if auth:
+        request.add_header('Authorization', 'Basic %s' % auth)
+    if ACCEPT_HEADER:
+        request.add_header('Accept', ACCEPT_HEADER)
+    # use this for whatever -- cookies, special headers, etc
+    # [('Cookie','Something'),('x-special-header','Another Value')]
+    for header_name, header_value in request_headers.items():
+        request.add_header(header_name, header_value)
+    request.add_header('A-IM', 'feed') # RFC 3229 support
+    return request
+
+_date_handlers = []
+def registerDateHandler(func):
+    '''Register a date handler function (takes string, returns 9-tuple date in GMT)'''
+    _date_handlers.insert(0, func)
+    
+# ISO-8601 date parsing routines written by Fazal Majid.
+# The ISO 8601 standard is very convoluted and irregular - a full ISO 8601
+# parser is beyond the scope of feedparser and would be a worthwhile addition
+# to the Python library.
+# A single regular expression cannot parse ISO 8601 date formats into groups
+# as the standard is highly irregular (for instance is 030104 2003-01-04 or
+# 0301-04-01), so we use templates instead.
+# Please note the order in templates is significant because we need a
+# greedy match.
+_iso8601_tmpl = ['YYYY-?MM-?DD', 'YYYY-0MM?-?DD', 'YYYY-MM', 'YYYY-?OOO',
+                'YY-?MM-?DD', 'YY-?OOO', 'YYYY', 
+                '-YY-?MM', '-OOO', '-YY',
+                '--MM-?DD', '--MM',
+                '---DD',
+                'CC', '']
+_iso8601_re = [
+    tmpl.replace(
+    'YYYY', r'(?P<year>\d{4})').replace(
+    'YY', r'(?P<year>\d\d)').replace(
+    'MM', r'(?P<month>[01]\d)').replace(
+    'DD', r'(?P<day>[0123]\d)').replace(
+    'OOO', r'(?P<ordinal>[0123]\d\d)').replace(
+    'CC', r'(?P<century>\d\d$)')
+    + r'(T?(?P<hour>\d{2}):(?P<minute>\d{2})'
+    + r'(:(?P<second>\d{2}))?'
+    + r'(\.(?P<fracsecond>\d+))?'
+    + r'(?P<tz>[+-](?P<tzhour>\d{2})(:(?P<tzmin>\d{2}))?|Z)?)?'
+    for tmpl in _iso8601_tmpl]
+try:
+    del tmpl
+except NameError:
+    pass
+_iso8601_matches = [re.compile(regex).match for regex in _iso8601_re]
+try:
+    del regex
+except NameError:
+    pass
+def _parse_date_iso8601(dateString):
+    '''Parse a variety of ISO-8601-compatible formats like 20040105'''
+    m = None
+    for _iso8601_match in _iso8601_matches:
+        m = _iso8601_match(dateString)
+        if m: break
+    if not m: return
+    if m.span() == (0, 0): return
+    params = m.groupdict()
+    ordinal = params.get('ordinal', 0)
+    if ordinal:
+        ordinal = int(ordinal)
+    else:
+        ordinal = 0
+    year = params.get('year', '--')
+    if not year or year == '--':
+        year = time.gmtime()[0]
+    elif len(year) == 2:
+        # ISO 8601 assumes current century, i.e. 93 -> 2093, NOT 1993
+        year = 100 * int(time.gmtime()[0] / 100) + int(year)
+    else:
+        year = int(year)
+    month = params.get('month', '-')
+    if not month or month == '-':
+        # ordinals are NOT normalized by mktime, we simulate them
+        # by setting month=1, day=ordinal
+        if ordinal:
+            month = 1
+        else:
+            month = time.gmtime()[1]
+    month = int(month)
+    day = params.get('day', 0)
+    if not day:
+        # see above
+        if ordinal:
+            day = ordinal
+        elif params.get('century', 0) or \
+                 params.get('year', 0) or params.get('month', 0):
+            day = 1
+        else:
+            day = time.gmtime()[2]
+    else:
+        day = int(day)
+    # special case of the century - is the first year of the 21st century
+    # 2000 or 2001 ? The debate goes on...
+    if 'century' in params.keys():
+        year = (int(params['century']) - 1) * 100 + 1
+    # in ISO 8601 most fields are optional
+    for field in ['hour', 'minute', 'second', 'tzhour', 'tzmin']:
+        if not params.get(field, None):
+            params[field] = 0
+    hour = int(params.get('hour', 0))
+    minute = int(params.get('minute', 0))
+    second = int(float(params.get('second', 0)))
+    # weekday is normalized by mktime(), we can ignore it
+    weekday = 0
+    daylight_savings_flag = -1
+    tm = [year, month, day, hour, minute, second, weekday,
+          ordinal, daylight_savings_flag]
+    # ISO 8601 time zone adjustments
+    tz = params.get('tz')
+    if tz and tz != 'Z':
+        if tz[0] == '-':
+            tm[3] += int(params.get('tzhour', 0))
+            tm[4] += int(params.get('tzmin', 0))
+        elif tz[0] == '+':
+            tm[3] -= int(params.get('tzhour', 0))
+            tm[4] -= int(params.get('tzmin', 0))
+        else:
+            return None
+    # Python's time.mktime() is a wrapper around the ANSI C mktime(3c)
+    # which is guaranteed to normalize d/m/y/h/m/s.
+    # Many implementations have bugs, but we'll pretend they don't.
+    return time.localtime(time.mktime(tuple(tm)))
+registerDateHandler(_parse_date_iso8601)
+    
+# 8-bit date handling routines written by ytrewq1.
+_korean_year  = u'\ub144' # b3e2 in euc-kr
+_korean_month = u'\uc6d4' # bff9 in euc-kr
+_korean_day   = u'\uc77c' # c0cf in euc-kr
+_korean_am    = u'\uc624\uc804' # bfc0 c0fc in euc-kr
+_korean_pm    = u'\uc624\ud6c4' # bfc0 c8c4 in euc-kr
+
+_korean_onblog_date_re = \
+    re.compile('(\d{4})%s\s+(\d{2})%s\s+(\d{2})%s\s+(\d{2}):(\d{2}):(\d{2})' % \
+               (_korean_year, _korean_month, _korean_day))
+_korean_nate_date_re = \
+    re.compile(u'(\d{4})-(\d{2})-(\d{2})\s+(%s|%s)\s+(\d{,2}):(\d{,2}):(\d{,2})' % \
+               (_korean_am, _korean_pm))
+def _parse_date_onblog(dateString):
+    '''Parse a string according to the OnBlog 8-bit date format'''
+    m = _korean_onblog_date_re.match(dateString)
+    if not m: return
+    w3dtfdate = '%(year)s-%(month)s-%(day)sT%(hour)s:%(minute)s:%(second)s%(zonediff)s' % \
+                {'year': m.group(1), 'month': m.group(2), 'day': m.group(3),\
+                 'hour': m.group(4), 'minute': m.group(5), 'second': m.group(6),\
+                 'zonediff': '+09:00'}
+    if _debug: sys.stderr.write('OnBlog date parsed as: %s\n' % w3dtfdate)
+    return _parse_date_w3dtf(w3dtfdate)
+registerDateHandler(_parse_date_onblog)
+
+def _parse_date_nate(dateString):
+    '''Parse a string according to the Nate 8-bit date format'''
+    m = _korean_nate_date_re.match(dateString)
+    if not m: return
+    hour = int(m.group(5))
+    ampm = m.group(4)
+    if (ampm == _korean_pm):
+        hour += 12
+    hour = str(hour)
+    if len(hour) == 1:
+        hour = '0' + hour
+    w3dtfdate = '%(year)s-%(month)s-%(day)sT%(hour)s:%(minute)s:%(second)s%(zonediff)s' % \
+                {'year': m.group(1), 'month': m.group(2), 'day': m.group(3),\
+                 'hour': hour, 'minute': m.group(6), 'second': m.group(7),\
+                 'zonediff': '+09:00'}
+    if _debug: sys.stderr.write('Nate date parsed as: %s\n' % w3dtfdate)
+    return _parse_date_w3dtf(w3dtfdate)
+registerDateHandler(_parse_date_nate)
+
+_mssql_date_re = \
+    re.compile('(\d{4})-(\d{2})-(\d{2})\s+(\d{2}):(\d{2}):(\d{2})(\.\d+)?')
+def _parse_date_mssql(dateString):
+    '''Parse a string according to the MS SQL date format'''
+    m = _mssql_date_re.match(dateString)
+    if not m: return
+    w3dtfdate = '%(year)s-%(month)s-%(day)sT%(hour)s:%(minute)s:%(second)s%(zonediff)s' % \
+                {'year': m.group(1), 'month': m.group(2), 'day': m.group(3),\
+                 'hour': m.group(4), 'minute': m.group(5), 'second': m.group(6),\
+                 'zonediff': '+09:00'}
+    if _debug: sys.stderr.write('MS SQL date parsed as: %s\n' % w3dtfdate)
+    return _parse_date_w3dtf(w3dtfdate)
+registerDateHandler(_parse_date_mssql)
+
+# Unicode strings for Greek date strings
+_greek_months = \
+  { \
+   u'\u0399\u03b1\u03bd': u'Jan',       # c9e1ed in iso-8859-7
+   u'\u03a6\u03b5\u03b2': u'Feb',       # d6e5e2 in iso-8859-7
+   u'\u039c\u03ac\u03ce': u'Mar',       # ccdcfe in iso-8859-7
+   u'\u039c\u03b1\u03ce': u'Mar',       # cce1fe in iso-8859-7
+   u'\u0391\u03c0\u03c1': u'Apr',       # c1f0f1 in iso-8859-7
+   u'\u039c\u03ac\u03b9': u'May',       # ccdce9 in iso-8859-7
+   u'\u039c\u03b1\u03ca': u'May',       # cce1fa in iso-8859-7
+   u'\u039c\u03b1\u03b9': u'May',       # cce1e9 in iso-8859-7
+   u'\u0399\u03bf\u03cd\u03bd': u'Jun', # c9effded in iso-8859-7
+   u'\u0399\u03bf\u03bd': u'Jun',       # c9efed in iso-8859-7
+   u'\u0399\u03bf\u03cd\u03bb': u'Jul', # c9effdeb in iso-8859-7
+   u'\u0399\u03bf\u03bb': u'Jul',       # c9f9eb in iso-8859-7
+   u'\u0391\u03cd\u03b3': u'Aug',       # c1fde3 in iso-8859-7
+   u'\u0391\u03c5\u03b3': u'Aug',       # c1f5e3 in iso-8859-7
+   u'\u03a3\u03b5\u03c0': u'Sep',       # d3e5f0 in iso-8859-7
+   u'\u039f\u03ba\u03c4': u'Oct',       # cfeaf4 in iso-8859-7
+   u'\u039d\u03bf\u03ad': u'Nov',       # cdefdd in iso-8859-7
+   u'\u039d\u03bf\u03b5': u'Nov',       # cdefe5 in iso-8859-7
+   u'\u0394\u03b5\u03ba': u'Dec',       # c4e5ea in iso-8859-7
+  }
+
+_greek_wdays = \
+  { \
+   u'\u039a\u03c5\u03c1': u'Sun', # caf5f1 in iso-8859-7
+   u'\u0394\u03b5\u03c5': u'Mon', # c4e5f5 in iso-8859-7
+   u'\u03a4\u03c1\u03b9': u'Tue', # d4f1e9 in iso-8859-7
+   u'\u03a4\u03b5\u03c4': u'Wed', # d4e5f4 in iso-8859-7
+   u'\u03a0\u03b5\u03bc': u'Thu', # d0e5ec in iso-8859-7
+   u'\u03a0\u03b1\u03c1': u'Fri', # d0e1f1 in iso-8859-7
+   u'\u03a3\u03b1\u03b2': u'Sat', # d3e1e2 in iso-8859-7   
+  }
+
+_greek_date_format_re = \
+    re.compile(u'([^,]+),\s+(\d{2})\s+([^\s]+)\s+(\d{4})\s+(\d{2}):(\d{2}):(\d{2})\s+([^\s]+)')
+
+def _parse_date_greek(dateString):
+    '''Parse a string according to a Greek 8-bit date format.'''
+    m = _greek_date_format_re.match(dateString)
+    if not m: return
+    try:
+        wday = _greek_wdays[m.group(1)]
+        month = _greek_months[m.group(3)]
+    except:
+        return
+    rfc822date = '%(wday)s, %(day)s %(month)s %(year)s %(hour)s:%(minute)s:%(second)s %(zonediff)s' % \
+                 {'wday': wday, 'day': m.group(2), 'month': month, 'year': m.group(4),\
+                  'hour': m.group(5), 'minute': m.group(6), 'second': m.group(7),\
+                  'zonediff': m.group(8)}
+    if _debug: sys.stderr.write('Greek date parsed as: %s\n' % rfc822date)
+    return _parse_date_rfc822(rfc822date)
+registerDateHandler(_parse_date_greek)
+
+# Unicode strings for Hungarian date strings
+_hungarian_months = \
+  { \
+    u'janu\u00e1r':   u'01',  # e1 in iso-8859-2
+    u'febru\u00e1ri': u'02',  # e1 in iso-8859-2
+    u'm\u00e1rcius':  u'03',  # e1 in iso-8859-2
+    u'\u00e1prilis':  u'04',  # e1 in iso-8859-2
+    u'm\u00e1ujus':   u'05',  # e1 in iso-8859-2
+    u'j\u00fanius':   u'06',  # fa in iso-8859-2
+    u'j\u00falius':   u'07',  # fa in iso-8859-2
+    u'augusztus':     u'08',
+    u'szeptember':    u'09',
+    u'okt\u00f3ber':  u'10',  # f3 in iso-8859-2
+    u'november':      u'11',
+    u'december':      u'12',
+  }
+
+_hungarian_date_format_re = \
+  re.compile(u'(\d{4})-([^-]+)-(\d{,2})T(\d{,2}):(\d{2})((\+|-)(\d{,2}:\d{2}))')
+
+def _parse_date_hungarian(dateString):
+    '''Parse a string according to a Hungarian 8-bit date format.'''
+    m = _hungarian_date_format_re.match(dateString)
+    if not m: return
+    try:
+        month = _hungarian_months[m.group(2)]
+        day = m.group(3)
+        if len(day) == 1:
+            day = '0' + day
+        hour = m.group(4)
+        if len(hour) == 1:
+            hour = '0' + hour
+    except:
+        return
+    w3dtfdate = '%(year)s-%(month)s-%(day)sT%(hour)s:%(minute)s%(zonediff)s' % \
+                {'year': m.group(1), 'month': month, 'day': day,\
+                 'hour': hour, 'minute': m.group(5),\
+                 'zonediff': m.group(6)}
+    if _debug: sys.stderr.write('Hungarian date parsed as: %s\n' % w3dtfdate)
+    return _parse_date_w3dtf(w3dtfdate)
+registerDateHandler(_parse_date_hungarian)
+
+# W3DTF-style date parsing adapted from PyXML xml.utils.iso8601, written by
+# Drake and licensed under the Python license.  Removed all range checking
+# for month, day, hour, minute, and second, since mktime will normalize
+# these later
+def _parse_date_w3dtf(dateString):
+    def __extract_date(m):
+        year = int(m.group('year'))
+        if year < 100:
+            year = 100 * int(time.gmtime()[0] / 100) + int(year)
+        if year < 1000:
+            return 0, 0, 0
+        julian = m.group('julian')
+        if julian:
+            julian = int(julian)
+            month = julian / 30 + 1
+            day = julian % 30 + 1
+            jday = None
+            while jday != julian:
+                t = time.mktime((year, month, day, 0, 0, 0, 0, 0, 0))
+                jday = time.gmtime(t)[-2]
+                diff = abs(jday - julian)
+                if jday > julian:
+                    if diff < day:
+                        day = day - diff
+                    else:
+                        month = month - 1
+                        day = 31
+                elif jday < julian:
+                    if day + diff < 28:
+                       day = day + diff
+                    else:
+                        month = month + 1
+            return year, month, day
+        month = m.group('month')
+        day = 1
+        if month is None:
+            month = 1
+        else:
+            month = int(month)
+            day = m.group('day')
+            if day:
+                day = int(day)
+            else:
+                day = 1
+        return year, month, day
+
+    def __extract_time(m):
+        if not m:
+            return 0, 0, 0
+        hours = m.group('hours')
+        if not hours:
+            return 0, 0, 0
+        hours = int(hours)
+        minutes = int(m.group('minutes'))
+        seconds = m.group('seconds')
+        if seconds:
+            seconds = int(seconds)
+        else:
+            seconds = 0
+        return hours, minutes, seconds
+
+    def __extract_tzd(m):
+        '''Return the Time Zone Designator as an offset in seconds from UTC.'''
+        if not m:
+            return 0
+        tzd = m.group('tzd')
+        if not tzd:
+            return 0
+        if tzd == 'Z':
+            return 0
+        hours = int(m.group('tzdhours'))
+        minutes = m.group('tzdminutes')
+        if minutes:
+            minutes = int(minutes)
+        else:
+            minutes = 0
+        offset = (hours*60 + minutes) * 60
+        if tzd[0] == '+':
+            return -offset
+        return offset
+
+    __date_re = ('(?P<year>\d\d\d\d)'
+                 '(?:(?P<dsep>-|)'
+                 '(?:(?P<month>\d\d)(?:(?P=dsep)(?P<day>\d\d))?'
+                 '|(?P<julian>\d\d\d)))?')
+    __tzd_re = '(?P<tzd>[-+](?P<tzdhours>\d\d)(?::?(?P<tzdminutes>\d\d))|Z)'
+    __tzd_rx = re.compile(__tzd_re)
+    __time_re = ('(?P<hours>\d\d)(?P<tsep>:|)(?P<minutes>\d\d)'
+                 '(?:(?P=tsep)(?P<seconds>\d\d)(?:[.,]\d+)?)?'
+                 + __tzd_re)
+    __datetime_re = '%s(?:T%s)?' % (__date_re, __time_re)
+    __datetime_rx = re.compile(__datetime_re)
+    m = __datetime_rx.match(dateString)
+    if (m is None) or (m.group() != dateString): return
+    gmt = __extract_date(m) + __extract_time(m) + (0, 0, 0)
+    if gmt[0] == 0: return
+    return time.gmtime(time.mktime(gmt) + __extract_tzd(m) - time.timezone)
+registerDateHandler(_parse_date_w3dtf)
+
+def _parse_date_rfc822(dateString):
+    '''Parse an RFC822, RFC1123, RFC2822, or asctime-style date'''
+    data = dateString.split()
+    if data[0][-1] in (',', '.') or data[0].lower() in rfc822._daynames:
+        del data[0]
+    if len(data) == 4:
+        s = data[3]
+        i = s.find('+')
+        if i > 0:
+            data[3:] = [s[:i], s[i+1:]]
+        else:
+            data.append('')
+        dateString = " ".join(data)
+    # Account for the Etc/GMT timezone by stripping 'Etc/'
+    elif len(data) == 5 and data[4].lower().startswith('etc/'):
+        data[4] = data[4][4:]
+        dateString = " ".join(data)
+    if len(data) < 5:
+        dateString += ' 00:00:00 GMT'
+    tm = rfc822.parsedate_tz(dateString)
+    if tm:
+        return time.gmtime(rfc822.mktime_tz(tm))
+# rfc822.py defines several time zones, but we define some extra ones.
+# 'ET' is equivalent to 'EST', etc.
+_additional_timezones = {'AT': -400, 'ET': -500, 'CT': -600, 'MT': -700, 'PT': -800}
+rfc822._timezones.update(_additional_timezones)
+registerDateHandler(_parse_date_rfc822)    
+
+def _parse_date_perforce(aDateString):
+	"""parse a date in yyyy/mm/dd hh:mm:ss TTT format"""
+	# Fri, 2006/09/15 08:19:53 EDT
+	_my_date_pattern = re.compile( \
+		r'(\w{,3}), (\d{,4})/(\d{,2})/(\d{2}) (\d{,2}):(\d{2}):(\d{2}) (\w{,3})')
+
+	dow, year, month, day, hour, minute, second, tz = \
+		_my_date_pattern.search(aDateString).groups()
+	months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
+	dateString = "%s, %s %s %s %s:%s:%s %s" % (dow, day, months[int(month) - 1], year, hour, minute, second, tz)
+	tm = rfc822.parsedate_tz(dateString)
+	if tm:
+		return time.gmtime(rfc822.mktime_tz(tm))
+registerDateHandler(_parse_date_perforce)
+
+def _parse_date(dateString):
+    '''Parses a variety of date formats into a 9-tuple in GMT'''
+    for handler in _date_handlers:
+        try:
+            date9tuple = handler(dateString)
+            if not date9tuple: continue
+            if len(date9tuple) != 9:
+                if _debug: sys.stderr.write('date handler function must return 9-tuple\n')
+                raise ValueError
+            map(int, date9tuple)
+            return date9tuple
+        except Exception, e:
+            if _debug: sys.stderr.write('%s raised %s\n' % (handler.__name__, repr(e)))
+            pass
+    return None
+
+def _getCharacterEncoding(http_headers, xml_data):
+    '''Get the character encoding of the XML document
+
+    http_headers is a dictionary
+    xml_data is a raw string (not Unicode)
+    
+    This is so much trickier than it sounds, it's not even funny.
+    According to RFC 3023 ('XML Media Types'), if the HTTP Content-Type
+    is application/xml, application/*+xml,
+    application/xml-external-parsed-entity, or application/xml-dtd,
+    the encoding given in the charset parameter of the HTTP Content-Type
+    takes precedence over the encoding given in the XML prefix within the
+    document, and defaults to 'utf-8' if neither are specified.  But, if
+    the HTTP Content-Type is text/xml, text/*+xml, or
+    text/xml-external-parsed-entity, the encoding given in the XML prefix
+    within the document is ALWAYS IGNORED and only the encoding given in
+    the charset parameter of the HTTP Content-Type header should be
+    respected, and it defaults to 'us-ascii' if not specified.
+
+    Furthermore, discussion on the atom-syntax mailing list with the
+    author of RFC 3023 leads me to the conclusion that any document
+    served with a Content-Type of text/* and no charset parameter
+    must be treated as us-ascii.  (We now do this.)  And also that it
+    must always be flagged as non-well-formed.  (We now do this too.)
+    
+    If Content-Type is unspecified (input was local file or non-HTTP source)
+    or unrecognized (server just got it totally wrong), then go by the
+    encoding given in the XML prefix of the document and default to
+    'iso-8859-1' as per the HTTP specification (RFC 2616).
+    
+    Then, assuming we didn't find a character encoding in the HTTP headers
+    (and the HTTP Content-type allowed us to look in the body), we need
+    to sniff the first few bytes of the XML data and try to determine
+    whether the encoding is ASCII-compatible.  Section F of the XML
+    specification shows the way here:
+    http://www.w3.org/TR/REC-xml/#sec-guessing-no-ext-info
+
+    If the sniffed encoding is not ASCII-compatible, we need to make it
+    ASCII compatible so that we can sniff further into the XML declaration
+    to find the encoding attribute, which will tell us the true encoding.
+
+    Of course, none of this guarantees that we will be able to parse the
+    feed in the declared character encoding (assuming it was declared
+    correctly, which many are not).  CJKCodecs and iconv_codec help a lot;
+    you should definitely install them if you can.
+    http://cjkpython.i18n.org/
+    '''
+
+    def _parseHTTPContentType(content_type):
+        '''takes HTTP Content-Type header and returns (content type, charset)
+
+        If no charset is specified, returns (content type, '')
+        If no content type is specified, returns ('', '')
+        Both return parameters are guaranteed to be lowercase strings
+        '''
+        content_type = content_type or ''
+        content_type, params = cgi.parse_header(content_type)
+        return content_type, params.get('charset', '').replace("'", '')
+
+    sniffed_xml_encoding = ''
+    xml_encoding = ''
+    true_encoding = ''
+    http_content_type, http_encoding = _parseHTTPContentType(http_headers.get('content-type', http_headers.get('Content-type')))
+    # Must sniff for non-ASCII-compatible character encodings before
+    # searching for XML declaration.  This heuristic is defined in
+    # section F of the XML specification:
+    # http://www.w3.org/TR/REC-xml/#sec-guessing-no-ext-info
+    try:
+        if xml_data[:4] == _l2bytes([0x4c, 0x6f, 0xa7, 0x94]):
+            # EBCDIC
+            xml_data = _ebcdic_to_ascii(xml_data)
+        elif xml_data[:4] == _l2bytes([0x00, 0x3c, 0x00, 0x3f]):
+            # UTF-16BE
+            sniffed_xml_encoding = 'utf-16be'
+            xml_data = unicode(xml_data, 'utf-16be').encode('utf-8')
+        elif (len(xml_data) >= 4) and (xml_data[:2] == _l2bytes([0xfe, 0xff])) and (xml_data[2:4] != _l2bytes([0x00, 0x00])):
+            # UTF-16BE with BOM
+            sniffed_xml_encoding = 'utf-16be'
+            xml_data = unicode(xml_data[2:], 'utf-16be').encode('utf-8')
+        elif xml_data[:4] == _l2bytes([0x3c, 0x00, 0x3f, 0x00]):
+            # UTF-16LE
+            sniffed_xml_encoding = 'utf-16le'
+            xml_data = unicode(xml_data, 'utf-16le').encode('utf-8')
+        elif (len(xml_data) >= 4) and (xml_data[:2] == _l2bytes([0xff, 0xfe])) and (xml_data[2:4] != _l2bytes([0x00, 0x00])):
+            # UTF-16LE with BOM
+            sniffed_xml_encoding = 'utf-16le'
+            xml_data = unicode(xml_data[2:], 'utf-16le').encode('utf-8')
+        elif xml_data[:4] == _l2bytes([0x00, 0x00, 0x00, 0x3c]):
+            # UTF-32BE
+            sniffed_xml_encoding = 'utf-32be'
+            xml_data = unicode(xml_data, 'utf-32be').encode('utf-8')
+        elif xml_data[:4] == _l2bytes([0x3c, 0x00, 0x00, 0x00]):
+            # UTF-32LE
+            sniffed_xml_encoding = 'utf-32le'
+            xml_data = unicode(xml_data, 'utf-32le').encode('utf-8')
+        elif xml_data[:4] == _l2bytes([0x00, 0x00, 0xfe, 0xff]):
+            # UTF-32BE with BOM
+            sniffed_xml_encoding = 'utf-32be'
+            xml_data = unicode(xml_data[4:], 'utf-32be').encode('utf-8')
+        elif xml_data[:4] == _l2bytes([0xff, 0xfe, 0x00, 0x00]):
+            # UTF-32LE with BOM
+            sniffed_xml_encoding = 'utf-32le'
+            xml_data = unicode(xml_data[4:], 'utf-32le').encode('utf-8')
+        elif xml_data[:3] == _l2bytes([0xef, 0xbb, 0xbf]):
+            # UTF-8 with BOM
+            sniffed_xml_encoding = 'utf-8'
+            xml_data = unicode(xml_data[3:], 'utf-8').encode('utf-8')
+        else:
+            # ASCII-compatible
+            pass
+        xml_encoding_match = re.compile(_s2bytes('^<\?.*encoding=[\'"](.*?)[\'"].*\?>')).match(xml_data)
+    except:
+        xml_encoding_match = None
+    if xml_encoding_match:
+        xml_encoding = xml_encoding_match.groups()[0].decode('utf-8').lower()
+        if sniffed_xml_encoding and (xml_encoding in ('iso-10646-ucs-2', 'ucs-2', 'csunicode', 'iso-10646-ucs-4', 'ucs-4', 'csucs4', 'utf-16', 'utf-32', 'utf_16', 'utf_32', 'utf16', 'u16')):
+            xml_encoding = sniffed_xml_encoding
+    acceptable_content_type = 0
+    application_content_types = ('application/xml', 'application/xml-dtd', 'application/xml-external-parsed-entity')
+    text_content_types = ('text/xml', 'text/xml-external-parsed-entity')
+    if (http_content_type in application_content_types) or \
+       (http_content_type.startswith('application/') and http_content_type.endswith('+xml')):
+        acceptable_content_type = 1
+        true_encoding = http_encoding or xml_encoding or 'utf-8'
+    elif (http_content_type in text_content_types) or \
+         (http_content_type.startswith('text/')) and http_content_type.endswith('+xml'):
+        acceptable_content_type = 1
+        true_encoding = http_encoding or 'us-ascii'
+    elif http_content_type.startswith('text/'):
+        true_encoding = http_encoding or 'us-ascii'
+    elif http_headers and (not (http_headers.has_key('content-type') or http_headers.has_key('Content-type'))):
+        true_encoding = xml_encoding or 'iso-8859-1'
+    else:
+        true_encoding = xml_encoding or 'utf-8'
+    # some feeds claim to be gb2312 but are actually gb18030.
+    # apparently MSIE and Firefox both do the following switch:
+    if true_encoding.lower() == 'gb2312':
+        true_encoding = 'gb18030'
+    return true_encoding, http_encoding, xml_encoding, sniffed_xml_encoding, acceptable_content_type
+    
+def _toUTF8(data, encoding):
+    '''Changes an XML data stream on the fly to specify a new encoding
+
+    data is a raw sequence of bytes (not Unicode) that is presumed to be in %encoding already
+    encoding is a string recognized by encodings.aliases
+    '''
+    if _debug: sys.stderr.write('entering _toUTF8, trying encoding %s\n' % encoding)
+    # strip Byte Order Mark (if present)
+    if (len(data) >= 4) and (data[:2] == _l2bytes([0xfe, 0xff])) and (data[2:4] != _l2bytes([0x00, 0x00])):
+        if _debug:
+            sys.stderr.write('stripping BOM\n')
+            if encoding != 'utf-16be':
+                sys.stderr.write('trying utf-16be instead\n')
+        encoding = 'utf-16be'
+        data = data[2:]
+    elif (len(data) >= 4) and (data[:2] == _l2bytes([0xff, 0xfe])) and (data[2:4] != _l2bytes([0x00, 0x00])):
+        if _debug:
+            sys.stderr.write('stripping BOM\n')
+            if encoding != 'utf-16le':
+                sys.stderr.write('trying utf-16le instead\n')
+        encoding = 'utf-16le'
+        data = data[2:]
+    elif data[:3] == _l2bytes([0xef, 0xbb, 0xbf]):
+        if _debug:
+            sys.stderr.write('stripping BOM\n')
+            if encoding != 'utf-8':
+                sys.stderr.write('trying utf-8 instead\n')
+        encoding = 'utf-8'
+        data = data[3:]
+    elif data[:4] == _l2bytes([0x00, 0x00, 0xfe, 0xff]):
+        if _debug:
+            sys.stderr.write('stripping BOM\n')
+            if encoding != 'utf-32be':
+                sys.stderr.write('trying utf-32be instead\n')
+        encoding = 'utf-32be'
+        data = data[4:]
+    elif data[:4] == _l2bytes([0xff, 0xfe, 0x00, 0x00]):
+        if _debug:
+            sys.stderr.write('stripping BOM\n')
+            if encoding != 'utf-32le':
+                sys.stderr.write('trying utf-32le instead\n')
+        encoding = 'utf-32le'
+        data = data[4:]
+    newdata = unicode(data, encoding)
+    if _debug: sys.stderr.write('successfully converted %s data to unicode\n' % encoding)
+    declmatch = re.compile('^<\?xml[^>]*?>')
+    newdecl = '''<?xml version='1.0' encoding='utf-8'?>'''
+    if declmatch.search(newdata):
+        newdata = declmatch.sub(newdecl, newdata)
+    else:
+        newdata = newdecl + u'\n' + newdata
+    return newdata.encode('utf-8')
+
+def _stripDoctype(data):
+    '''Strips DOCTYPE from XML document, returns (rss_version, stripped_data)
+
+    rss_version may be 'rss091n' or None
+    stripped_data is the same XML document, minus the DOCTYPE
+    '''
+    start = re.search(_s2bytes('<\w'), data)
+    start = start and start.start() or -1
+    head,data = data[:start+1], data[start+1:]
+    
+    entity_pattern = re.compile(_s2bytes(r'^\s*<!ENTITY([^>]*?)>'), re.MULTILINE)
+    entity_results=entity_pattern.findall(head)
+    head = entity_pattern.sub(_s2bytes(''), head)
+    doctype_pattern = re.compile(_s2bytes(r'^\s*<!DOCTYPE([^>]*?)>'), re.MULTILINE)
+    doctype_results = doctype_pattern.findall(head)
+    doctype = doctype_results and doctype_results[0] or _s2bytes('')
+    if doctype.lower().count(_s2bytes('netscape')):
+        version = 'rss091n'
+    else:
+        version = None
+
+    # only allow in 'safe' inline entity definitions
+    replacement=_s2bytes('')
+    if len(doctype_results)==1 and entity_results:
+       safe_pattern=re.compile(_s2bytes('\s+(\w+)\s+"(&#\w+;|[^&"]*)"'))
+       safe_entities=filter(lambda e: safe_pattern.match(e),entity_results)
+       if safe_entities:
+           replacement=_s2bytes('<!DOCTYPE feed [\n  <!ENTITY') + _s2bytes('>\n  <!ENTITY ').join(safe_entities) + _s2bytes('>\n]>')
+    data = doctype_pattern.sub(replacement, head) + data
+
+    return version, data, dict(replacement and [(k.decode('utf-8'), v.decode('utf-8')) for k, v in safe_pattern.findall(replacement)])
+    
+def parse(url_file_stream_or_string, etag=None, modified=None, agent=None, referrer=None, handlers=[], request_headers={}, response_headers={}):
+    '''Parse a feed from a URL, file, stream, or string.
+    
+    request_headers, if given, is a dict from http header name to value to add
+    to the request; this overrides internally generated values.
+    '''
+    result = FeedParserDict()
+    result['feed'] = FeedParserDict()
+    result['entries'] = []
+    if _XML_AVAILABLE:
+        result['bozo'] = 0
+    if not isinstance(handlers, list):
+        handlers = [handlers]
+    try:
+        f = _open_resource(url_file_stream_or_string, etag, modified, agent, referrer, handlers, request_headers)
+        data = f.read()
+    except Exception, e:
+        result['bozo'] = 1
+        result['bozo_exception'] = e
+        data = None
+        f = None
+
+    if hasattr(f, 'headers'):
+        result['headers'] = dict(f.headers)
+    # overwrite existing headers using response_headers
+    if 'headers' in result:
+        result['headers'].update(response_headers)
+    elif response_headers:
+        result['headers'] = copy.deepcopy(response_headers)
+
+    # if feed is gzip-compressed, decompress it
+    if f and data and 'headers' in result:
+        if gzip and result['headers'].get('content-encoding') == 'gzip':
+            try:
+                data = gzip.GzipFile(fileobj=_StringIO(data)).read()
+            except Exception, e:
+                # Some feeds claim to be gzipped but they're not, so
+                # we get garbage.  Ideally, we should re-request the
+                # feed without the 'Accept-encoding: gzip' header,
+                # but we don't.
+                result['bozo'] = 1
+                result['bozo_exception'] = e
+                data = ''
+        elif zlib and result['headers'].get('content-encoding') == 'deflate':
+            try:
+                data = zlib.decompress(data, -zlib.MAX_WBITS)
+            except Exception, e:
+                result['bozo'] = 1
+                result['bozo_exception'] = e
+                data = ''
+
+    # save HTTP headers
+    if 'headers' in result:
+        if 'etag' in result['headers'] or 'ETag' in result['headers']:
+            etag = result['headers'].get('etag', result['headers'].get('ETag'))
+            if etag:
+                result['etag'] = etag
+        if 'last-modified' in result['headers'] or 'Last-Modified' in result['headers']:
+            modified = result['headers'].get('last-modified', result['headers'].get('Last-Modified'))
+            if modified:
+                result['modified'] = _parse_date(modified)
+    if hasattr(f, 'url'):
+        result['href'] = f.url
+        result['status'] = 200
+    if hasattr(f, 'status'):
+        result['status'] = f.status
+    if hasattr(f, 'close'):
+        f.close()
+
+    # there are four encodings to keep track of:
+    # - http_encoding is the encoding declared in the Content-Type HTTP header
+    # - xml_encoding is the encoding declared in the <?xml declaration
+    # - sniffed_encoding is the encoding sniffed from the first 4 bytes of the XML data
+    # - result['encoding'] is the actual encoding, as per RFC 3023 and a variety of other conflicting specifications
+    http_headers = result.get('headers', {})
+    result['encoding'], http_encoding, xml_encoding, sniffed_xml_encoding, acceptable_content_type = \
+        _getCharacterEncoding(http_headers, data)
+    if http_headers and (not acceptable_content_type):
+        if http_headers.has_key('content-type') or http_headers.has_key('Content-type'):
+            bozo_message = '%s is not an XML media type' % http_headers.get('content-type', http_headers.get('Content-type'))
+        else:
+            bozo_message = 'no Content-type specified'
+        result['bozo'] = 1
+        result['bozo_exception'] = NonXMLContentType(bozo_message)
+
+    if data is not None:
+        result['version'], data, entities = _stripDoctype(data)
+
+    # ensure that baseuri is an absolute uri using an acceptable URI scheme
+    contentloc = http_headers.get('content-location', http_headers.get('Content-Location', ''))
+    href = result.get('href', '')
+    baseuri = _makeSafeAbsoluteURI(href, contentloc) or _makeSafeAbsoluteURI(contentloc) or href
+
+    baselang = http_headers.get('content-language', http_headers.get('Content-Language', None))
+
+    # if server sent 304, we're done
+    if result.get('status', 0) == 304:
+        result['version'] = ''
+        result['debug_message'] = 'The feed has not changed since you last checked, ' + \
+            'so the server sent no data.  This is a feature, not a bug!'
+        return result
+
+    # if there was a problem downloading, we're done
+    if data is None:
+        return result
+
+    # determine character encoding
+    use_strict_parser = 0
+    known_encoding = 0
+    tried_encodings = []
+    # try: HTTP encoding, declared XML encoding, encoding sniffed from BOM
+    for proposed_encoding in (result['encoding'], xml_encoding, sniffed_xml_encoding):
+        if not proposed_encoding: continue
+        if proposed_encoding in tried_encodings: continue
+        tried_encodings.append(proposed_encoding)
+        try:
+            data = _toUTF8(data, proposed_encoding)
+            known_encoding = use_strict_parser = 1
+            break
+        except:
+            pass
+    # if no luck and we have auto-detection library, try that
+    if (not known_encoding) and chardet:
+        try:
+            proposed_encoding = chardet.detect(data)['encoding']
+            if proposed_encoding and (proposed_encoding not in tried_encodings):
+                tried_encodings.append(proposed_encoding)
+                data = _toUTF8(data, proposed_encoding)
+                known_encoding = use_strict_parser = 1
+        except:
+            pass
+    # if still no luck and we haven't tried utf-8 yet, try that
+    if (not known_encoding) and ('utf-8' not in tried_encodings):
+        try:
+            proposed_encoding = 'utf-8'
+            tried_encodings.append(proposed_encoding)
+            data = _toUTF8(data, proposed_encoding)
+            known_encoding = use_strict_parser = 1
+        except:
+            pass
+    # if still no luck and we haven't tried windows-1252 yet, try that
+    if (not known_encoding) and ('windows-1252' not in tried_encodings):
+        try:
+            proposed_encoding = 'windows-1252'
+            tried_encodings.append(proposed_encoding)
+            data = _toUTF8(data, proposed_encoding)
+            known_encoding = use_strict_parser = 1
+        except:
+            pass
+    # if still no luck and we haven't tried iso-8859-2 yet, try that.
+    if (not known_encoding) and ('iso-8859-2' not in tried_encodings):
+        try:
+            proposed_encoding = 'iso-8859-2'
+            tried_encodings.append(proposed_encoding)
+            data = _toUTF8(data, proposed_encoding)
+            known_encoding = use_strict_parser = 1
+        except:
+            pass
+    # if still no luck, give up
+    if not known_encoding:
+        result['bozo'] = 1
+        result['bozo_exception'] = CharacterEncodingUnknown( \
+            'document encoding unknown, I tried ' + \
+            '%s, %s, utf-8, windows-1252, and iso-8859-2 but nothing worked' % \
+            (result['encoding'], xml_encoding))
+        result['encoding'] = ''
+    elif proposed_encoding != result['encoding']:
+        result['bozo'] = 1
+        result['bozo_exception'] = CharacterEncodingOverride( \
+            'document declared as %s, but parsed as %s' % \
+            (result['encoding'], proposed_encoding))
+        result['encoding'] = proposed_encoding
+
+    if not _XML_AVAILABLE:
+        use_strict_parser = 0
+    if use_strict_parser:
+        # initialize the SAX parser
+        feedparser = _StrictFeedParser(baseuri, baselang, 'utf-8')
+        saxparser = xml.sax.make_parser(PREFERRED_XML_PARSERS)
+        saxparser.setFeature(xml.sax.handler.feature_namespaces, 1)
+        saxparser.setContentHandler(feedparser)
+        saxparser.setErrorHandler(feedparser)
+        source = xml.sax.xmlreader.InputSource()
+        source.setByteStream(_StringIO(data))
+        if hasattr(saxparser, '_ns_stack'):
+            # work around bug in built-in SAX parser (doesn't recognize xml: namespace)
+            # PyXML doesn't have this problem, and it doesn't have _ns_stack either
+            saxparser._ns_stack.append({'http://www.w3.org/XML/1998/namespace':'xml'})
+        try:
+            saxparser.parse(source)
+        except Exception, e:
+            if _debug:
+                import traceback
+                traceback.print_stack()
+                traceback.print_exc()
+                sys.stderr.write('xml parsing failed\n')
+            result['bozo'] = 1
+            result['bozo_exception'] = feedparser.exc or e
+            use_strict_parser = 0
+    if not use_strict_parser:
+        feedparser = _LooseFeedParser(baseuri, baselang, 'utf-8', entities)
+        feedparser.feed(data.decode('utf-8', 'replace'))
+    result['feed'] = feedparser.feeddata
+    result['entries'] = feedparser.entries
+    result['version'] = result['version'] or feedparser.version
+    result['namespaces'] = feedparser.namespacesInUse
+    return result
+
+class Serializer:
+    def __init__(self, results):
+        self.results = results
+
+class TextSerializer(Serializer):
+    def write(self, stream=sys.stdout):
+        self._writer(stream, self.results, '')
+
+    def _writer(self, stream, node, prefix):
+        if not node: return
+        if hasattr(node, 'keys'):
+            keys = node.keys()
+            keys.sort()
+            for k in keys:
+                if k in ('description', 'link'): continue
+                if node.has_key(k + '_detail'): continue
+                if node.has_key(k + '_parsed'): continue
+                self._writer(stream, node[k], prefix + k + '.')
+        elif type(node) == types.ListType:
+            index = 0
+            for n in node:
+                self._writer(stream, n, prefix[:-1] + '[' + str(index) + '].')
+                index += 1
+        else:
+            try:
+                s = str(node).encode('utf-8')
+                s = s.replace('\\', '\\\\')
+                s = s.replace('\r', '')
+                s = s.replace('\n', r'\n')
+                stream.write(prefix[:-1])
+                stream.write('=')
+                stream.write(s)
+                stream.write('\n')
+            except:
+                pass
+        
+class PprintSerializer(Serializer):
+    def write(self, stream=sys.stdout):
+        if self.results.has_key('href'):
+            stream.write(self.results['href'] + '\n\n')
+        from pprint import pprint
+        pprint(self.results, stream)
+        stream.write('\n')
+        
+if __name__ == '__main__':
+    try:
+        from optparse import OptionParser
+    except:
+        OptionParser = None
+
+    if OptionParser:
+        optionParser = OptionParser(version=__version__, usage="%prog [options] url_or_filename_or_-")
+        optionParser.set_defaults(format="pprint")
+        optionParser.add_option("-A", "--user-agent", dest="agent", metavar="AGENT", help="User-Agent for HTTP URLs")
+        optionParser.add_option("-e", "--referer", "--referrer", dest="referrer", metavar="URL", help="Referrer for HTTP URLs")
+        optionParser.add_option("-t", "--etag", dest="etag", metavar="TAG", help="ETag/If-None-Match for HTTP URLs")
+        optionParser.add_option("-m", "--last-modified", dest="modified", metavar="DATE", help="Last-modified/If-Modified-Since for HTTP URLs (any supported date format)")
+        optionParser.add_option("-f", "--format", dest="format", metavar="FORMAT", help="output results in FORMAT (text, pprint)")
+        optionParser.add_option("-v", "--verbose", action="store_true", dest="verbose", default=False, help="write debugging information to stderr")
+        (options, urls) = optionParser.parse_args()
+        if options.verbose:
+            _debug = 1
+        if not urls:
+            optionParser.print_help()
+            sys.exit(0)
+    else:
+        if not sys.argv[1:]:
+            print __doc__
+            sys.exit(0)
+        class _Options:
+            etag = modified = agent = referrer = None
+            format = 'pprint'
+        options = _Options()
+        urls = sys.argv[1:]
+
+    zopeCompatibilityHack()
+
+    serializer = globals().get(options.format.capitalize() + 'Serializer', Serializer)
+    for url in urls:
+        results = parse(url, etag=options.etag, modified=options.modified, agent=options.agent, referrer=options.referrer)
+        serializer(results).write(sys.stdout)