Re: [PATCH v7 13/17] ref-filter: add `:dir` and `:base` options for ref printing atoms

Karthik Nayak [off-list ref] writes:

On Tue, Nov 15, 2016 at 11:12 PM, Junio C Hamano [off-list ref] wrote:

quoted

Jacob Keller [off-list ref] writes:
...
I think you are going in the right direction.  I had a similar
thought but built around a different axis.  I.e. if strip=1 strips
one from the left, perhaps we want to have rstrip=1 that strips one
from the right, and also strip=-1 to mean strip everything except
one from the left and so on?

...

If we do implement strip with negative numbers, it definitely
would be neat, but to get the desired feature which I've mentioned
below, we'd need to call strip twice, i.e
to get remotes from /refs/foo/abc/xyz we'd need to do
strip=1,strip=-1, which could be
done but ...

... would be unnecessary if this is the only use case:

strbuf_addf(&fmt,
"%%(if:notequals=remotes)%%(refname:base)%%(then)%s%%(else)%s%%(end)",
local.buf, remote.buf);

You can "strip to leave only 2 components" and compare the result
with refs/remotes instead, no?