text: // Copyright (c) 2014-2021 Dr. Colin Hirsch and Daniel Frey
  // Distributed under the Boost Software License, Version 1.0.
  // (See accompanying file LICENSE_1_0.txt or copy at https://www.boost.org/LICENSE_1_0.txt)
  
  #include "test.hpp"
  #include "verify_meta.hpp"
  #include "verify_rule.hpp"
  
  namespace TAO_PEGTL_NAMESPACE
  {
     void unit_test()
     {
        verify_analyze< pad_opt< eof, eof > >( __LINE__, __FILE__, false, true );
        verify_analyze< pad_opt< eof, any > >( __LINE__, __FILE__, false, false );
        verify_analyze< pad_opt< any, eof > >( __LINE__, __FILE__, false, true );
        verify_analyze< pad_opt< any, any > >( __LINE__, __FILE__, false, false );
  
        verify_rule< pad_opt< one< 'a' >, space > >( __LINE__, __FILE__, "", result_type::success, 0 );
        verify_rule< pad_opt< one< 'a' >, space > >( __LINE__, __FILE__, " ", result_type::success, 0 );
        verify_rule< pad_opt< one< 'a' >, space > >( __LINE__, __FILE__, "  ", result_type::success, 0 );
        verify_rule< pad_opt< one< 'a' >, space > >( __LINE__, __FILE__, "b", result_type::success, 1 );
        verify_rule< pad_opt< one< 'a' >, space > >( __LINE__, __FILE__, "ba", result_type::success, 2 );
        verify_rule< pad_opt< one< 'a' >, space > >( __LINE__, __FILE__, "a", result_type::success, 0 );
        verify_rule< pad_opt< one< 'a' >, space > >( __LINE__, __FILE__, " a", result_type::success, 0 );
        verify_rule< pad_opt< one< 'a' >, space > >( __LINE__, __FILE__, "a ", result_type::success, 0 );
        verify_rule< pad_opt< one< 'a' >, space > >( __LINE__, __FILE__, "  a", result_type::success, 0 );
        verify_rule< pad_opt< one< 'a' >, space > >( __LINE__, __FILE__, "  b", result_type::success, 1 );
        verify_rule< pad_opt< one< 'a' >, space > >( __LINE__, __FILE__, "a  ", result_type::success, 0 );
        verify_rule< pad_opt< one< 'a' >, space > >( __LINE__, __FILE__, "  a  ", result_type::success, 0 );
        verify_rule< pad_opt< one< 'a' >, space > >( __LINE__, __FILE__, "   a   ", result_type::success, 0 );
        verify_rule< pad_opt< one< 'a' >, space > >( __LINE__, __FILE__, "aa", result_type::success, 1 );
        verify_rule< pad_opt< one< 'a' >, space > >( __LINE__, __FILE__, "a a", result_type::success, 1 );
        verify_rule< pad_opt< one< 'a' >, space > >( __LINE__, __FILE__, "  a  a ", result_type::success, 2 );
     }
  
  }  // namespace TAO_PEGTL_NAMESPACE
  
  #include "main.hpp"
  