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/meta.py

@@ -0,0 +1,96 @@
+#!usr/bin/python
+
+"""
+Meta Data Extension for Python-Markdown
+=======================================
+
+This extension adds Meta Data handling to markdown.
+
+Basic Usage:
+
+    >>> import markdown
+    >>> text = '''Title: A Test Doc.
+    ... Author: Waylan Limberg
+    ...         John Doe
+    ... Blank_Data:
+    ...
+    ... The body. This is paragraph one.
+    ... '''
+    >>> md = markdown.Markdown(['meta'])
+    >>> print md.convert(text)
+    <p>The body. This is paragraph one.</p>
+    >>> print md.Meta
+    {u'blank_data': [u''], u'author': [u'Waylan Limberg', u'John Doe'], u'title': [u'A Test Doc.']}
+
+Make sure text without Meta Data still works (markdown < 1.6b returns a <p>).
+
+    >>> text = '    Some Code - not extra lines of meta data.'
+    >>> md = markdown.Markdown(['meta'])
+    >>> print md.convert(text)
+    <pre><code>Some Code - not extra lines of meta data.
+    </code></pre>
+    >>> md.Meta
+    {}
+
+Copyright 2007-2008 [Waylan Limberg](http://achinghead.com).
+
+Project website: <http://packages.python.org/Markdown/meta_data.html>
+Contact: markdown@freewisdom.org
+
+License: BSD (see ../LICENSE.md for details)
+
+"""
+import re
+
+import markdown
+
+# Global Vars
+META_RE = re.compile(r'^[ ]{0,3}(?P<key>[A-Za-z0-9_-]+):\s*(?P<value>.*)')
+META_MORE_RE = re.compile(r'^[ ]{4,}(?P<value>.*)')
+
+class MetaExtension (markdown.Extension):
+    """ Meta-Data extension for Python-Markdown. """
+
+    def extendMarkdown(self, md, md_globals):
+        """ Add MetaPreprocessor to Markdown instance. """
+
+        md.preprocessors.add("meta", MetaPreprocessor(md), "_begin")
+
+
+class MetaPreprocessor(markdown.preprocessors.Preprocessor):
+    """ Get Meta-Data. """
+
+    def run(self, lines):
+        """ Parse Meta-Data and store in Markdown.Meta. """
+        meta = {}
+        key = None
+        while 1:
+            line = lines.pop(0)
+            if line.strip() == '':
+                break # blank line - done
+            m1 = META_RE.match(line)
+            if m1:
+                key = m1.group('key').lower().strip()
+                value = m1.group('value').strip()
+                try:
+                    meta[key].append(value)
+                except KeyError:
+                    meta[key] = [value]
+            else:
+                m2 = META_MORE_RE.match(line)
+                if m2 and key:
+                    # Add another line to existing key
+                    meta[key].append(m2.group('value').strip())
+                else:
+                    lines.insert(0, line)
+                    break # no meta data - done
+        self.markdown.Meta = meta
+        return lines
+        
+
+def makeExtension(configs={}):
+    return MetaExtension(configs=configs)
+
+if __name__ == "__main__":
+    import doctest
+    doctest.testmod()