"{-#" $whitechar* (INCLUDE|include) { lex_string_prag ITinclude_prag }
}
+<0,option_prags,glaexts> {
+ -- This is to catch things like {-# OPTIONS OPTIONS_HUGS ...
+ "{-#" $whitechar* $idchar+ { nested_comment }
+}
+
-- '0' state: ordinary lexemes
-- 'glaexts' state: glasgow extensions (postfix '#', etc.)