Please check out the revset feature

[Peter Arrenbrecht]

On Mon, Jun 7, 2010 at 6:16 PM, Matt Mackall <mpm at selenic.com> wrote:
> Last week I pushed the revset feature to default. It's available
> wherever revision ranges were previously supported. It's quite complex
> and needs some testing. (And yes, there are currently no tests or docs!)
> ...
>  x - y  -> x & !y

This seems to break branch names with dashes in them, as in:

  hg glog --rev p-root:tip

-parren