import docutils.core
from webob import Response

class Graphviz(object):
    def __init__(self, content):
        """create a Graphviz object"""

    def __call__(self, environ, start_response):
        """return a WSGI response"""
   

class RestructuredText(object):
    settings = { 'report_level': 5 }

    def __init__(self, content):
        """template: genshi(?) template to use (???)"""
        self.html = docutils.core.publish_string(content,
                                                 writer_name='html',
                                                 settings_overrides=self.settings)

    def __call__(self, environ, start_response):
        """return a WSGI response"""
        return Response(content_type='text/html', body=self.html)