3.2.15. rule

• 3.2.15.1. rule/Composer.hpp
• 3.2.15.2. rule/CompositionExpr.hpp
• 3.2.15.3. rule/CompositionMatch.hpp
• 3.2.15.4. rule/ForwardDecl.hpp
• 3.2.15.5. rule/GraphInterface.hpp
• 3.2.15.6. rule/Rule.hpp