Revert 243980 "Docserver: Support markdown for HTML content."

trunk/src/third_party/markdown/extensions/meta.py

-"""
-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)
-
-"""
-
-from __future__ import absolute_import
-from __future__ import unicode_literals
-from . import Extension
-from ..preprocessors import Preprocessor
-import re
-
-# 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 (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(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)