1 files changed, 49 insertions, 0 deletions
diff --git a/markdown/extensions/sane_lists.py b/markdown/extensions/sane_lists.py
new file mode 100644
index 0000000..dce04ea
--- /dev/null
+++ b/markdown/extensions/sane_lists.py
@@ -0,0 +1,49 @@
+#!/usr/bin/env python
+"""
+Sane List Extension for Python-Markdown
+=======================================
+
+Modify the behavior of Lists in Python-Markdown t act in a sane manor.
+
+In standard Markdown sytex, the following would constitute a single 
+ordered list. However, with this extension, the output would include 
+two lists, the first an ordered list and the second and unordered list.
+
+    1. ordered
+    2. list
+
+    * unordered
+    * list
+
+Copyright 2011 - [Waylan Limberg](http://achinghead.com)
+
+"""
+
+import re
+import markdown
+
+
+class SaneOListProcessor(markdown.blockprocessors.OListProcessor):
+    
+    CHILD_RE = re.compile(r'^[ ]{0,3}((\d+\.))[ ]+(.*)')
+    SIBLING_TAGS = ['ol']
+
+
+class SaneUListProcessor(markdown.blockprocessors.UListProcessor):
+    
+    CHILD_RE = re.compile(r'^[ ]{0,3}(([*+-]))[ ]+(.*)')
+    SIBLING_TAGS = ['ul']
+
+
+class SaneListExtension(markdown.Extension):
+    """ Add sane lists to Markdown. """
+
+    def extendMarkdown(self, md, md_globals):
+        """ Override existing Processors. """
+        md.parser.blockprocessors['olist'] = SaneOListProcessor(md.parser)
+        md.parser.blockprocessors['ulist'] = SaneUListProcessor(md.parser)
+
+
+def makeExtension(configs={}):
+    return SaneListExtension(configs=configs)
+