--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ThirdParty/Pygments/pygments/filter.py	Mon Dec 28 16:03:33 2009 +0000
@@ -0,0 +1,74 @@
+# -*- coding: utf-8 -*-
+"""
+    pygments.filter
+    ~~~~~~~~~~~~~~~
+
+    Module that implements the default filter.
+
+    :copyright: Copyright 2006-2009 by the Pygments team, see AUTHORS.
+    :license: BSD, see LICENSE for details.
+"""
+
+
+def apply_filters(stream, filters, lexer=None):
+    """
+    Use this method to apply an iterable of filters to
+    a stream. If lexer is given it's forwarded to the
+    filter, otherwise the filter receives `None`.
+    """
+    def _apply(filter_, stream):
+        for token in filter_.filter(lexer, stream):
+            yield token
+    for filter_ in filters:
+        stream = _apply(filter_, stream)
+    return stream
+
+
+def simplefilter(f):
+    """
+    Decorator that converts a function into a filter::
+
+        @simplefilter
+        def lowercase(lexer, stream, options):
+            for ttype, value in stream:
+                yield ttype, value.lower()
+    """
+    return type(f.__name__, (FunctionFilter,), {
+                'function':     f,
+                '__module__':   getattr(f, '__module__'),
+                '__doc__':      f.__doc__
+            })
+
+
+class Filter(object):
+    """
+    Default filter. Subclass this class or use the `simplefilter`
+    decorator to create own filters.
+    """
+
+    def __init__(self, **options):
+        self.options = options
+
+    def filter(self, lexer, stream):
+        raise NotImplementedError()
+
+
+class FunctionFilter(Filter):
+    """
+    Abstract class used by `simplefilter` to create simple
+    function filters on the fly. The `simplefilter` decorator
+    automatically creates subclasses of this class for
+    functions passed to it.
+    """
+    function = None
+
+    def __init__(self, **options):
+        if not hasattr(self, 'function'):
+            raise TypeError('%r used without bound function' %
+                            self.__class__.__name__)
+        Filter.__init__(self, **options)
+
+    def filter(self, lexer, stream):
+        # pylint: disable-msg=E1102
+        for ttype, value in self.function(lexer, stream, self.options):
+            yield ttype, value