extracting metada about a rst document / directives

Hi all,

I need to process rst documents using docutils - I got the basics
working (i.e. conversion into html etc.) but I'm a bit stuck with
extracting document metadata.

Each document has a few items on top - for example

:Date:      2014-02-28
:Published: no
:Author:    John Doe
:Slug:      this-is-my-first-doc
:Language:  en

And I need to extract this, so that I can process that - into a python
dictionary or something like that. I've noticed I could do extract that
from the doctree, but isn't there another - more straightforward way?

thanks
Tomas

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