anchor.diff:      ;
   
   functionCall
  -    : ID LP_( bitExprs?) RP_
  +    : ID LP_ bitExprs? RP_
       ;
   
   privateExprOfDb
  
positive.code:     | simpleExpr collateClause
      //| param_marker
      //| variable
  
      | simpleExpr AND_ simpleExpr
      | PLUS simpleExpr
      | MINUS simpleExpr
  
negative.code:     | expr XOR expr
      | expr AND expr
      | expr AND_ expr
      | LP_ expr RP_
      | NOT expr
      | NOT_ expr
  