Kai.Grossjohann@CS.Uni-Dortmund.DE (Kai Großjohann) writes:

> Two issues come to my mind.  First of all, what happens if you have
> "%%s" in the string?  I think that this function is buggy in that
> case.  Secondly, converting the string to a buffer and then (for
> gnus-replace-in-string) back to a string does not appear to be very
> efficient.

You're right on both counts.

> Maybe you could search for the regexp "%[%s]", the look at
> match-string (that's what actually matched the regex) and do
> different things depending on that.  Does this make sense?

It does. I've updated the patch (attached) to do the following:

1. Adds a customisation variable gnus-make-format-preserve-properties,
   which allows the user to switch the behaviour off if they don't
   need/want it.
2. Rewrote the format replacement function to take into account your
   comments, and added support for pad widths (%10s), as they can
   occur if gnus-use-correct-string-widths is nil. I didn't do
   precision (%.5s) as that should never happen.

Otherwise, it does the same as the previous one.

Cheers,
Paul.

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