On Tue, Apr 05, 2005 at 06:17:05PM +0100, Andrew Suffield wrote: > On Tue, Apr 05, 2005 at 03:34:25PM +0200, Jan Hudec wrote: > > > Inexact patching for jpeg images anyone? Or for (ugh!) XML RSS files[1]? > > > Or... > > > > I believe there is some kind of xml-diff [...]
> Yes, but there's no corresponding patch tool, nor can there be (any > more than there can for xdelta), since XML is semantically null and > syntactically useless. *CRACK UP* Heh. If I had a signature file -- could I steal that :-)) > > And even if it's not inexact patching, instead of two versions, you can > > store one version and a difference. And knowing the nature of the data > > can make this more efficient. > > Delta compression is a fairly trivial storage optimisation that's not > particularly interesting. The archive isn't your problem for storage > anyway; it is the smallest thing in arch. Amen. Although it might be cute to have delta compression -- it doesn't solve the real problem. Regards -- tom�s
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