Sun Apr 13 15:18:07 CEST 2008 Thomas Schilling
* Change dependency resolution algorithm.
There were two reasons to do this. Firstly, this formulation makes it
easier to add the --constraint command line flag that adds additional
constraints on the packages that should be used.
Secondly, with the orgininal algorithm it was possible to satisfy the
constraint "foo < 1, foo > 2" if we had two versions of package "foo"
which each satisfy one constraint. This patch fixes this by requiring
the same package to satisfy both constraints (which of course is
impossible in this case).
Sun Apr 13 15:18:39 CEST 2008 Thomas Schilling
* Fix/Add documentation.
Sun Apr 13 15:20:02 CEST 2008 Thomas Schilling
* Add simple test case for the dependency resolution case. This should
go into the test suite one day.
Sun Apr 13 20:20:42 CEST 2008 Thomas Schilling
* Add 'readP_to_E' function that takes the longest parse.
Sun Apr 13 20:26:59 CEST 2008 Thomas Schilling
* Fix #224. We do not yet warn if the user specified a dependency that
did not occur in the package (it is just silently ignored.)
