Re: [PATCH 4/4] Add 'filter' attribute and external filter driver definition.

> On Sat, 21 Apr 2007, Junio C Hamano wrote:
> 
> > > 3. why specify seperate clean/smudge programs instead of just one
> > > script with a read/write parameter?
> > 
> > I think the most common two ways have clean as a cleaner and
> > smudge as a no-op (similar to crlf=input conversion), or clean
> > and smudge are inverse operations (similar to crlf=true
> > conversion.  I do not see a sane case where clean and smudge are
> > the same, unless you are thinking about the toy demonstration
> > test piece I added to t0021 which uses rot13 as both clean and
> > smudge filters.
> 
> actually, I'm thinking of much more complicated filters, where it's easier to
> have one program do both functions then it is to have two seperate programs
> (like tar -c /tar -x)