Re: Display something besides Subject line on request

[prj@po.cwru.edu (Paul Jarc)]

Harry Putnam <reader@newsguy.com> wrote:
> Unless you mean it would be more available since it is in .overview.
> That may be a factor especially for speed.  But I'm thinking this
> would be better if it was not required to be in .overview.  That is,
> this function would plow thru the messages in the limited buffer, and
> find the Keywords lines in real time.

I would view that as a hack to compensate for backends that allow
their NOV data to become stale.  Better to keep the NOV data up to
date, since it matters for *all* uses of NOV data, not just this one.
But maybe I'm biased. :)

> Over time that would probably be faster since it would lack the
> overhead of having to find and keep another field in .overview.  It
> would only happen on demand.

Hm, maybe.  More generally, we occasionally want to operate on
information which is normally not of interest, and thus not stored
with the NOV data - so it should be possible to do that without too
much trouble.  OTOH, when the information we want to operate on is
stored with the NOV data, we shouldn't have to pay the penalty of
rescanning the original message header; that should be done only when
necessary.  Maybe it could be determined automatically by looking at
gnus-extra-headers.  NOV data still ought to be kept up to date in any
case, IMO.


paul