just checked into Zope's ZCTextIndex branch. This reduces the size
of the .chm file by about 100KB.
# Note that "and", "or", "not" and "near" are operators in the search
# language, so no point indexing them even if we wanted to.
stop_list = '''
-a an and
-is
-near
-not
-of
-or
-the
+a and are as at
+be but by
+for
+if in into is it
+near no not
+of on or
+such
+that the their then there these they this to
+was will with
'''
# s is a string or None. If None or empty, return None. Else tack '.html'