How to return list of lowest level elements in a hierarchy given the node o

Question

We would like to return a list of the lowest level Elements in a Hierarchy from a given node of the hierarchy.  The level of the node that is given to us is unknown, but regardless, we need the ability to return the lowest level elements.  We are trying to find a non-ABAP solution to our needs and trying to use a BEx query as a source for our APD.
In query designer we are able to obtain the correct list when using the Hierarchy and Condition with a Leaf value of '1' to return the lowest level. However,  We have come to learn APDs do no support the BEx hierarchies.  When we de-selected the 'Activate Hierarchy' display in the query, the entire structure under the given node is returned.
Does anybody know of a way to return just the lowest level elements in a hierarchy so we can feed our APD?
Thanks,
Andrea

Answer 1

expac works only with official and unofficial repos, not with the AUR, but it's very nice.
Adding  '-q' should help, grep to weed out false positives.
yaourt -Sa $(yaourt -Ssaq pulse)
works, but
$ yaourt -Sa $(yaourt -Ssaq chrome)
resolving dependencies...
looking for inter-conflicts...
warning: removing 'chromium' from target list because it conflicts with 'chromium-no-sse2'
error: unresolvable package conflicts detected
error: failed to prepare transaction (conflicting dependencies)
:: chromium-no-sse2 and chromium-scroll-pixelGs are in conflict
so at least
$ yaourt -Sa $(yaourt -Ssaq chrome|grep google)
is needed.
Edit: Also:
$ LC_ALL=C TZ=GMT0 diff -Naur /usr/bin/pacsearch /usr/local/bin/pacsearch
--- /usr/bin/pacsearch 2014-11-21 11:20:37.000000000 +0000
+++ /usr/local/bin/pacsearch 2014-12-21 08:21:14.758856006 +0000
@@ -84,7 +84,7 @@
my %allpkgs = ();
-my $syncout = `pacman -Ss '@ARGV'`;
+my $syncout = `pacman -Ssq '@ARGV'`;
# split each sync search entry into its own array entry
my @syncpkgs = split(/\n^(?=\w)/m, $syncout);
# remove the extra \n from the last desc entry
@@ -110,7 +110,7 @@
$allpkgs{$pkgfields[1]} = [ @pkgfields ];
-my $queryout = `pacman -Qs '@ARGV'`;
+my $queryout = `pacman -Qqs '@ARGV'`;
# split each querysearch entry into its own array entry
my @querypkgs = split(/\n^(?=\w)/m, $queryout);
# remove the extra \n from the last desc entry
$ /usr/local/bin/pacsearch pulse
libpulse
pulseaudio
libao
libcanberra-pulse
libpulse
paprefs
pavucontrol
pulseaudio
pulseaudio-alsa
floyd
libcec
mate-media-pulseaudio
mate-settings-daemon-pulseaudio
ponymix
projectm-pulseaudio
Although why not simply use pacman or expac?
Last edited by karol (2014-12-21 08:26:48)