Re: [PATCH v3] Allow applying filters to summary consecutively

[Richard Stallman]

[[[ To any NSA and FBI agents reading my email: please consider    ]]]
[[[ whether defending the US Constitution against all enemies,     ]]]
[[[ foreign or domestic, requires you to follow Snowden's example. ]]]

  > It seems more natural, at least to me, to ask the user how they want the 
  > command to be applied.

To me that seems the least convenient interface.
I'd prefer an interface which doesn't ask questions.

Here's a proposal.

A summary filter command _in the Rmail buffer_ should always
make a new summary, discarding the previous summary first.

A summary filter command _in a summary buffer_ should always modify
the existing summary in that buffer.  If you type | first, you get
union; otherwise, intersection.

I think this is very natural.

-- 
Dr Richard Stallman (https://stallman.org)
Chief GNUisance of the GNU Project (https://gnu.org)
Founder, Free Software Foundation (https://fsf.org)
Internet Hall-of-Famer (https://internethalloffame.org)