On Tue, Oct 4, 2011 at 2:16 PM, Panayiotis Karabassis <pan...@gmail.com> wrote: > I still have much to learn about aptitude, but in case anyone is > interested, I made some sense from the source code, which seem to be > ingenious at times: > > There are indeed two modes, but not what I thought. There is a "match > all versions" mode, which seems to be used by ?all-versions() and a > "match any version" which seems to be used by everything else. What the > latter returns (all versions or just the versions that matched), I do > not know. > > The really clever part is how ?any-version() works. Matches happen > against a pool of package versions. So ?any-version creates a *new pool* > for each package version in the original pool. Then it concatenates the > matches together. That way it forces a package search to become a > version search. Think about it. Amazing. I am a better programmer for > finding this gem. > > The documentation could be more detailed though. I propose you sending a patch with that detailed documentation to aptitude-de...@lists.alioth.debian.org (or like a wishlist in PTS)
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