updated parser for supporting Variables calculation

git-svn-id: svn://svn.forge.objectweb.org/svnroot/spagobi@22852 99afaf0d-6903-0410-885a-c66a8bbb5f81
git-svn-id: svn://svn.forge.objectweb.org/svnroot/spagobi@22853 99afaf0d-6903-0410-885a-c66a8bbb5f81
git-svn-id: svn://svn.forge.objectweb.org/svnroot/spagobi@22854 99afaf0d-6903-0410-885a-c66a8bbb5f81
git-svn-id: svn://svn.forge.objectweb.org/svnroot/spagobi@22855 99afaf0d-6903-0410-885a-c66a8bbb5f81
git-svn-id: svn://svn.forge.objectweb.org/svnroot/spagobi@22856 99afaf0d-6903-0410-885a-c66a8bbb5f81
git-svn-id: svn://svn.forge.objectweb.org/svnroot/spagobi@22857 99afaf0d-6903-0410-885a-c66a8bbb5f81
updated parser for multiple hierarchies

git-svn-id: svn://svn.forge.objectweb.org/svnroot/spagobi@22858 99afaf0d-6903-0410-885a-c66a8bbb5f81