WIP added grammar rules for gameFormula

Does not compile at this stage! This commit will be squashed asap.

src/storm-parsers/parser/FormulaParserGrammar.cpp

@@ -141,6 +141,20 @@ namespace storm {
             gameFormula.name("game formula");
 
             stateFormula = (orStateFormula | multiFormula | quantileFormula | gameFormula);
+
+            coalitionOperator = (qi::lit("<<")
+                    > *(    (identifier[phoenix::push_back(qi::_a, qi::_1)]
+                        |    qi::int_[phoenix::push_back(qi::_b, qi::_1)]) % ','
+                        )
+                    > qi::lit(">>"))[qi::_val = phoenix::bind(&FormulaParserGrammar::createCoalition, phoenix::ref(*this), qi::_a, qi::_b)];
+            coalitionOperator.name("coalition operator");
+
+            // only LRA for now, need to adapt this (beware of cyclic gameFormula pass!)
+            gameFormula = (coalitionOperator > longRunAverageOperator)[qi::_val = phoenix::bind(&FormulaParserGrammar::createGameFormula, phoenix::ref(*this), storm::logic::Coalition({}, {1}), qi::_1)];
+            gameFormula.name("game formula");
+
+            stateFormula = (orStateFormula | multiFormula | quantileFormula | gameFormula);
+>>>>>>> f106b8332... WIP added grammar rules for gameFormula
             stateFormula.name("state formula");
 
             formulaName = qi::lit("\"") >> identifier >> qi::lit("\"") >> qi::lit(":");