Added markdown parsing for comments so links in comments now appear properly.

Also rewrote part of the HTML rewriting code so it doesn't introduce an additional wrapping element in the output which was added due to a html5lib requirements on input.

python/packages/markdown/extensions/def_list.py

@@ -0,0 +1,110 @@
+#!/usr/bin/env python
+"""
+Definition List Extension for Python-Markdown
+=============================================
+
+Added parsing of Definition Lists to Python-Markdown.
+
+A simple example:
+
+    Apple
+    :   Pomaceous fruit of plants of the genus Malus in 
+        the family Rosaceae.
+    :   An american computer company.
+
+    Orange
+    :   The fruit of an evergreen tree of the genus Citrus.
+
+Copyright 2008 - [Waylan Limberg](http://achinghead.com)
+
+"""
+
+import re
+import markdown
+from markdown.util import etree
+
+
+class DefListProcessor(markdown.blockprocessors.BlockProcessor):
+    """ Process Definition Lists. """
+
+    RE = re.compile(r'(^|\n)[ ]{0,3}:[ ]{1,3}(.*?)(\n|$)')
+    NO_INDENT_RE = re.compile(r'^[ ]{0,3}[^ :]')
+
+    def test(self, parent, block):
+        return bool(self.RE.search(block))
+
+    def run(self, parent, blocks):
+        block = blocks.pop(0)
+        m = self.RE.search(block)
+        terms = [l.strip() for l in block[:m.start()].split('\n') if l.strip()]
+        block = block[m.end():]
+        no_indent = self.NO_INDENT_RE.match(block)
+        if no_indent:
+            d, theRest = (block, None)
+        else:
+            d, theRest = self.detab(block)
+        if d:
+            d = '%s\n%s' % (m.group(2), d)
+        else:
+            d = m.group(2)
+        sibling = self.lastChild(parent)
+        if not terms and sibling.tag == 'p':
+            # The previous paragraph contains the terms
+            state = 'looselist'
+            terms = sibling.text.split('\n')
+            parent.remove(sibling)
+            # Aquire new sibling
+            sibling = self.lastChild(parent)
+        else:
+            state = 'list'
+
+        if sibling and sibling.tag == 'dl':
+            # This is another item on an existing list
+            dl = sibling
+            if len(dl) and dl[-1].tag == 'dd' and len(dl[-1]):
+                state = 'looselist'
+        else:
+            # This is a new list
+            dl = etree.SubElement(parent, 'dl')
+        # Add terms
+        for term in terms:
+            dt = etree.SubElement(dl, 'dt')
+            dt.text = term
+        # Add definition
+        self.parser.state.set(state)
+        dd = etree.SubElement(dl, 'dd')
+        self.parser.parseBlocks(dd, [d])
+        self.parser.state.reset()
+
+        if theRest:
+            blocks.insert(0, theRest)
+
+class DefListIndentProcessor(markdown.blockprocessors.ListIndentProcessor):
+    """ Process indented children of definition list items. """
+
+    ITEM_TYPES = ['dd']
+    LIST_TYPES = ['dl']
+
+    def create_item(self, parent, block):
+        """ Create a new dd and parse the block with it as the parent. """
+        dd = markdown.etree.SubElement(parent, 'dd')
+        self.parser.parseBlocks(dd, [block])
+ 
+
+
+class DefListExtension(markdown.Extension):
+    """ Add definition lists to Markdown. """
+
+    def extendMarkdown(self, md, md_globals):
+        """ Add an instance of DefListProcessor to BlockParser. """
+        md.parser.blockprocessors.add('defindent',
+                                      DefListIndentProcessor(md.parser),
+                                      '>indent')
+        md.parser.blockprocessors.add('deflist', 
+                                      DefListProcessor(md.parser),
+                                      '>ulist')
+
+
+def makeExtension(configs={}):
+    return DefListExtension(configs=configs)
+