'Add the various proccesors and patterns to the Markdown Instance.
This method must be overriden by every extension.
Keyword arguments:
* md: The Markdown instance.
* md_globals: Global variables in the markdown module namespace.'

def extendMarkdown(self, md, md_globals):

    raise NotImplementedError((u'Extension    "%s.%s"    must    define    an    "extendMarkdown"method.' % (self.__class__.__module__, self.__class__.__name__)))
