[signature of Rules changed -- isOpen deleted
martin.hofmann@uni-bamberg.de**20081114123656
 isOpen moved to the signature of Fragment 
] hunk ./src/Data/Rules.hs 4
-    Rule, rule, 
-    isOpen,
+    Rule, rule,
hunk ./src/Data/Rules.hs 9
-    map , fold 
+    map , fold, 
hunk ./src/Data/Rules.hs 13
-    
hunk ./src/Data/Rules.hs 37
--- | Rule accessors
-isOpen :: Rule -> Bool
-isOpen _ = True    