Bug#776334: apt: implement quoting for the conditions on apt_preferences

[Christoph Anton Mitterer <calestyo@scientia.net>]

Source: apt
Version: 1.0.9.6
Severity: wishlist


Hi.

It seems that there is no general way of quoting the conditions.
in apt_preferences (i.e. the Pin: lines).

So having repos like deb-multimedia, which contain spaces in some
of their fields, e.g.:
  Origin: Unofficial Multimedia Packages
  Label: Unofficial Multimedia Packages
  Suite: unstable

show the problems that could theoretically arise:
  Package: deb-multimedia-keyring
  Pin: release o=Unofficial Multimedia Packages,a=testing
  Pin-Priority: 500

Now it's not really clear, is the origin "Unofficial Multimedia Packages,a=testing"
or are there an origin "Unofficial Multimedia Packages" and an archive "testing"
specified.


Apparently the behaviour right now is, that apt simply looks
for commas and splits there, e.g.
  Pin: release o=Unofficial Multimedia Packages,l=Unofficial Multimedia Packages
works (AFAICS) as expected... which of course means again,
that the values couldn't contain ",".


Cheers,
Chris.