yum info rubygem-ParseTree
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Available Packages
Name        : rubygem-ParseTree
Arch        : noarch
Version     : 3.0.5
Release     : 1.el6_0
Size        : 75 k
Repo        : aeolus-brew-nightly
Summary     : Extracts the parse tree for a class/method and returns an
            : s-expression
URL         : http://parsetree.rubyforge.org/
License     : MIT
Description : ParseTree is a C extension (using RubyInline) that extracts the
            : parse tree for an entire class or a specific method and returns it
            : as a s-expression (aka sexp) using ruby's arrays, strings,
            : symbols, and integers.


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Repo Used : 
http://download.lab.bos.redhat.com/rel-eng/CloudForms/1.0/2012-03-12.1/el6-ce/
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rpm -qa|grep aeolus
aeolus-conductor-doc-0.8.0-41.el6.noarch
rubygem-aeolus-cli-0.3.0-13.el6.noarch
aeolus-all-0.8.0-41.el6.noarch
aeolus-conductor-0.8.0-41.el6.noarch
rubygem-aeolus-image-0.3.0-12.el6.noarch
aeolus-configure-2.5.0-18.el6.noarch
aeolus-conductor-daemons-0.8.0-41.el6.noarch