An extension on the GsQuery subsystem that allows for the creation of queries like the following:
3.6.1 < each.gemstoneVersion <= 3.7.0
(3.6.1 < each.gemstoneVersion <= 3.7.0) & (tests = true) | (ci = true))
where the numeric-ish literals (like 3.7.0) are interpretted as instances of RwGemStoneVersionNumber. The variables ('tests' and 'ci') represent attrbute values ... if the attribute is present, it's value is true, otherwise it's value is `false'.
These expressions are used in Rowan conditional components to determine whether the packages associated with the component should be loaded or not...
projectsHome=/bosch1/users/dhenrich/_stones/git
installProject.stone file:${projectsHome}/RwCAQ/rowan/specs/RwCAQ.ston --projectsHome=${projectsHome} -D