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#!/usr/bin/env python
"""
HTML Tidy Extension for Python-Markdown
=======================================
Runs [HTML Tidy][] on the output of Python-Markdown using the [uTidylib][]
Python wrapper. Both libtidy and uTidylib must be installed on your system.
Note than any Tidy [options][] can be passed in as extension configs. So,
for example, to output HTML rather than XHTML, set ``output_xhtml=0``. To
indent the output, set ``indent=auto`` and to have Tidy wrap the output in
``<html>`` and ``<body>`` tags, set ``show_body_only=0``.
[HTML Tidy]: http://tidy.sourceforge.net/
[uTidylib]: http://utidylib.berlios.de/
[options]: http://tidy.sourceforge.net/docs/quickref.html
Copyright (c)2008 [Waylan Limberg](http://achinghead.com)
License: [BSD](http://www.opensource.org/licenses/bsd-license.php)
Dependencies:
* [Python2.3+](http://python.org)
* [Markdown 2.0+](http://www.freewisdom.org/projects/python-markdown/)
* [HTML Tidy](http://utidylib.berlios.de/)
* [uTidylib](http://utidylib.berlios.de/)
"""
import markdown
import tidy
class TidyExtension(markdown.Extension):
def __init__(self, configs):
# Set defaults to match typical markdown behavior.
self.config = dict(output_xhtml=1,
show_body_only=1,
)
# Merge in user defined configs overriding any present if nessecary.
for c in configs:
self.config[c[0]] = c[1]
def extendMarkdown(self, md, md_globals):
# Save options to markdown instance
md.tidy_options = self.config
# Add TidyProcessor to postprocessors
md.postprocessors['tidy'] = TidyProcessor(md)
class TidyProcessor(markdown.postprocessors.Postprocessor):
def run(self, text):
# Pass text to Tidy. As Tidy does not accept unicode we need to encode
# it and decode its return value.
return unicode(tidy.parseString(text.encode('utf-8'),
**self.markdown.tidy_options))
def makeExtension(configs=None):
return TidyExtension(configs=configs)
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