[Zope] How can I render structured-text from PythonMethods?

[itamars@ibm.net]

I want to be able to run structured_text and newline_to_br and
html_quoute - all the formatting options available in DTML - using
PythonMethods.  Something like:

	a = structured_text(self.body)

is there any way to do this?