/usr/share/pyshared/markdown/extensions/meta.py is in python-markdown 2.1.1-1.
This file is owned by root:root, with mode 0o644.
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"""
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://www.freewisdom.org/project/python-markdown/Meta-Data>
Contact: markdown@freewisdom.org
License: BSD (see ../docs/LICENSE 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()
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