On Thu, May 7, 2009 at 3:12 PM, Mark Hatle <mark.hatle@windriver.com> wrote:
> While I don't have an answer for you, my concern with any change to
> rpmvercmp is around compatibility.. bugs become features....
>
> What I've never seen well documented is the actual algorithm that
rpmvercmp
> uses for it's comparison (in a human readable form).  I attempted to write
> one once and I can dig it up if it will help... but I'm not even 100% sure
> it's really correct.
>

Look here, for an example description

https://fedorahosted.org/pyrpm/browser/doc/pyrpm-devel.txt