ceph/src/boost/libs/spirit/test/qi/bool.hpp

   1 /*=============================================================================
   2     Copyright (c) 2001-2011 Hartmut Kaiser
   3     Copyright (c) 2011      Bryce Lelbach
   4
   5     Distributed under the Boost Software License, Version 1.0. (See accompanying
   6     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   7 ==============================================================================*/
   8 #if !defined(BOOST_SPIRIT_TEST_QI_BOOL)
   9 #define BOOST_SPIRIT_TEST_QI_BOOL
  10
  11 #include <boost/detail/lightweight_test.hpp>
  12
  13 #include <boost/spirit/include/support_argument.hpp>
  14 #include <boost/spirit/include/qi_char.hpp>
  15 #include <boost/spirit/include/qi_numeric.hpp>
  16 #include <boost/spirit/include/qi_directive.hpp>
  17 #include <boost/cstdint.hpp>
  18 #include "test.hpp"
  19
  20 ///////////////////////////////////////////////////////////////////////////////
  21 struct backwards_bool_policies : boost::spirit::qi::bool_policies<>
  22 {
  23     // we want to interpret a 'true' spelled backwards as 'false'
  24     template <typename Iterator, typename Attribute>
  25     static bool
  26     parse_false(Iterator& first, Iterator const& last, Attribute& attr)
  27     {
  28         namespace spirit = boost::spirit;
  29         namespace qi = boost::spirit::qi;
  30         if (qi::detail::string_parse("eurt", first, last, qi::unused))
  31         {
  32             spirit::traits::assign_to(false, attr);    // result is false
  33             return true;
  34         }
  35         return false;
  36     }
  37 };
  38
  39 ///////////////////////////////////////////////////////////////////////////////
  40 struct test_bool_type
  41 {
  42     test_bool_type(bool b) : b(b) {}    // provide conversion
  43     bool b;
  44 };
  45
  46 #endif
  47