C89Test output

｢int main(int x) { return x; }｣
 function-definition => ｢int main(int x) { return x; }｣
  declaration-specifiers => ｢int ｣
   declaration-specifier => ｢int ｣
    type-specifier => ｢int ｣
     sym => ｢int｣
  declarator => ｢main(int x) ｣
   direct-declarator => ｢main(int x) ｣
    direct-declarator-first => ｢main｣
     ident => ｢main｣
    direct-declarator-rest => ｢(int x) ｣
     parameter-type-list => ｢int x｣
      parameter-list => ｢int x｣
       parameter-declaration => ｢int x｣
        declaration-specifiers => ｢int ｣
         declaration-specifier => ｢int ｣
          type-specifier => ｢int ｣
           sym => ｢int｣
        declarator => ｢x｣
         direct-declarator => ｢x｣
          direct-declarator-first => ｢x｣
           ident => ｢x｣
  compound-statement => ｢{ return x; }｣
   block-item-list => ｢return x; ｣
    block-item => ｢return x; ｣
     statement => ｢return x; ｣
      jump-statement => ｢return x; ｣
       expression => ｢x｣
        assignment-expression => ｢x｣
         conditional-expression => ｢x｣
          logical-or-expression => ｢x｣
           logical-and-expression => ｢x｣
            inclusive-or-expression => ｢x｣
             exclusive-or-expression => ｢x｣
              and-expression => ｢x｣
               equality-expression => ｢x｣
                relational-expression => ｢x｣
                 shift-expression => ｢x｣
                  additive-expression => ｢x｣
                   multiplicative-expression => ｢x｣
                    cast-expression => ｢x｣
                     unary-expression => ｢x｣
                      postfix-expression => ｢x｣
                       postfix-expression-first => ｢x｣
                        primary-expression => ｢x｣
                         ident => ｢x｣