Added a partial fix to regex, started improving the krakenGrammer regexes

krakenGrammer.kgm

@@ -157,7 +157,7 @@ numeric = "[0-9]+" ;
 string = triple_quoted_string | "\"(`|[0-9]|-|=|	|[a-z]|\[|]|(\\\\)|(\\n)|(\\t)|(\\\*)|(\\0)|;|'|
 |,|.|/|~|!|@|#|$|%|^|&|\*|\(|\)|_|\+|[A-Z]|{|}|\||:|<|>|\?| |(\\\"))*\"" ;
 comment = cpp_comment | c_comment ;
-cpp_comment = "//(`|[0-9]|-|=|	|[a-z]|\[|]|\\|;|'|,|.|/|~|!|@|#|$|%|^|&|\*|\(|\)|_|\+|[A-Z]|{|}|\||:|\"|<|>|\?| )*
+cpp_comment = "//[ -~]*
 " ;
-c_comment = "(/\*/*\**((`|[0-9]|-|=|	|[a-z]|\[|]|\\|;|'|
-|,|.|~|!|@|#|$|%|^|&|\(|\)|_|\+|[A-Z]|{|}|\||:|\"|<|>|\?| )/*\**)+\*/)|(/\*\*/)" ;
+c_comment = "(/\*/*\**(([ -)]|[0-~]|[+-.]|	|
+)/*\**)+\*/)|(/\*\*/)" ;