lib/rouge/lexers/rust.rb in rouge-2.0.6 vs lib/rouge/lexers/rust.rb in rouge-2.0.7

@@ -84,10 +84,10 @@
         mixin :has_literals
 
         rule %r([=-]>), Keyword
         rule %r(<->), Keyword
         rule /[()\[\]{}|,:;]/, Punctuation
-        rule /[*!@~&+%^<>=-]/, Operator
+        rule /[*!@~&+%^<>=-\?]/, Operator
 
         rule /([.]\s*)?#{id}(?=\s*[(])/m, Name::Function
         rule /[.]\s*#{id}/, Name::Property
         rule /(#{id})(::)/m do
           groups Name::Namespace, Punctuation