C++ parser

input.cpp

int const * a = nullptr;

output

translation_unit {
  declarations = declarations 1 {
    declaration block_declaration simple_declaration {
      attribute_specifiers = attribute_specifiers 0 {
      };
      decl_specifier_seq = decl_specifier_seq {
        decl_specifier = decl_specifier type_specifier trailing_type_specifier simple_type_specifier simple_type_specifier_keyword {
          keyword = "int";
        };
        decl_specifiers = decl_specifiers 1 {
          decl_specifier type_specifier trailing_type_specifier cv_qualifier {
            cv = "const";
          };
        };
        attribute_specifiers = attribute_specifiers 0 {
        };
      };
      init_declarator_list = init_declarator_list {
        init_declarator = init_declarator {
          declarator = declarator ptr_declarator {
            ptr_operators = ptr_operators 1 {
              ptr_operator ptr_operator_star {
                multiply = "*";
                attribute_specifiers = attribute_specifiers 0 {
                };
                cv_qualifiers = cv_qualifiers 0 {
                };
              };
            };
            noptr_declarator = noptr_declarator {
              noptr_declarator_root = noptr_declarator_root noptr_declarator_root_no_parentheses {
                declarator_id = declarator_id {
                  dots = (null);
                  id_expression = id_expression unqualified_id unqualified_id_identifier {
                    identifier = "a";
                  };
                };
                attribute_specifiers = attribute_specifiers 0 {
                };
              };
              noptr_declarator_suffixes = noptr_declarator_suffixes 0 {
              };
            };
          };
          initializer = initializer brace_or_equal_initializer equal_initializer {
            assignment = "=";
            initializer_clause = initializer_clause assignment_initializer_clause {
              assignment_expression = assignment_expression conditional_expression {
                logical_or_expression = logical_or_expression {
                  logical_and_expression = logical_and_expression {
                    inclusive_or_expression = inclusive_or_expression {
                      exclusive_or_expression = exclusive_or_expression {
                        and_expression = and_expression {
                          equality_expression = equality_expression {
                            relational_expression = relational_expression {
                              shift_expression = shift_expression {
                                additive_expression = additive_expression {
                                  multiplicative_expression = multiplicative_expression {
                                    pm_expression = pm_expression {
                                      cast_expression = cast_expression unary_expression postfix_expression {
                                        postfix_root = postfix_root postfix_root_primary_expression {
                                          primary_expression = primary_expression primary_expression_literal {
                                            literal = "nullptr";
                                          };
                                        };
                                        postfix_suffixes = postfix_suffixes 0 {
                                        };
                                      };
                                      pm_expression_suffix = pm_expression_suffix (null);
                                    };
                                    multiplicative_expression_suffix = multiplicative_expression_suffix (null);
                                  };
                                  additive_expression_suffix = additive_expression_suffix (null);
                                };
                                shift_expression_suffix = shift_expression_suffix (null);
                              };
                              relational_expression_suffix = relational_expression_suffix (null);
                            };
                            equality_expression_suffix = equality_expression_suffix (null);
                          };
                          and_expression_suffix = and_expression_suffix (null);
                        };
                        exclusive_or_expression_suffix = exclusive_or_expression_suffix (null);
                      };
                      inclusive_or_expression_suffix = inclusive_or_expression_suffix (null);
                    };
                    logical_and_expression_suffix = logical_and_expression_suffix (null);
                  };
                  logical_or_expression_suffix = logical_or_expression_suffix (null);
                };
                conditional_expression_suffix = conditional_expression_suffix (null);
              };
            };
          };
        };
        comma_init_declarators = comma_init_declarators 0 {
        };
      };
      semicolon = ";";
    };
  };
};