How to list default packages?

How can I list all default packages of /package?

find /package -perm -1111 -prune lists all categories.
find /package -perm -1110 -prune |
while read c; do find "$c" ! -perm +1000 -prune; done lists all packages.

Descriminating the symlink on its own is not enough, since a
package version can be symlinked, too.

find /package -perm -1111 -prune |
while read c; do find "$c" ! -perm +1000 -prune; done |
while read p
do
  test -l "$p" || continue
  l=`readlink "$p"`
  test -e `dirname "$p"`/"$l" || continue
  echo "$l" |
    grep -q ^`basename "$p"`-"[0-9]" &&
      echo "$p"
done

is my best approximation, but it assumes that there are never packages
like:

editor  -> vim-1.0
gnat    -> gnat-i386-1.0  (We can rename it gnat-1.0-i386)

This may be okay because Dan requires version NUMBERS to start
with a digit and other problems can be avoided.

IMHO the usage of the sticky bit and the version number scheme is
a weak point of slashpackage.

Thanks,
-- 
Stefan Karrmann, Remscheider Straße 13, 70376 Stuttgart, Germany
Tel.: +49 711 5056659, Email: [email protected]
W3: www.karrmann.de