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/*=============================================================================
    Copyright (c) 2001-2011 Hartmut Kaiser

    Distributed under the Boost Software License, Version 1.0. (See accompanying
    file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
==============================================================================*/
#if !defined(SPIRIT_QI_BOOL_POLICIES_SEP_29_2009_0710AM)
#define SPIRIT_QI_BOOL_POLICIES_SEP_29_2009_0710AM

#if defined(_MSC_VER)
#pragma once
#endif

#include <boost/spirit/home/qi/detail/string_parse.hpp>
#include <boost/spirit/home/qi/detail/assign_to.hpp>

namespace boost { namespace spirit { namespace qi
{
    ///////////////////////////////////////////////////////////////////////////
    //  Default boolean policies
    ///////////////////////////////////////////////////////////////////////////
    template <typename T = bool>
    struct bool_policies
    {
        template <typename Iterator, typename Attribute>
        static bool
        parse_true(Iterator& first, Iterator const& last, Attribute& attr_)
        {
            if (detail::string_parse("true", first, last, unused))
            {
                spirit::traits::assign_to(T(true), attr_);    // result is true
                return true;
            }
            return false;
        }

        template <typename Iterator, typename Attribute>
        static bool
        parse_false(Iterator& first, Iterator const& last, Attribute& attr_)
        {
            if (detail::string_parse("false", first, last, unused))
            {
                spirit::traits::assign_to(T(false), attr_);   // result is false
                return true;
            }
            return false;
        }
    };

    ///////////////////////////////////////////////////////////////////////////
    template <typename T = bool>
    struct no_case_bool_policies
    {
        template <typename Iterator, typename Attribute>
        static bool
        parse_true(Iterator& first, Iterator const& last, Attribute& attr_)
        {
            if (detail::string_parse("true", "TRUE", first, last, unused))
            {
                spirit::traits::assign_to(T(true), attr_);    // result is true
                return true;
            }
            return false;
        }

        template <typename Iterator, typename Attribute>
        static bool
        parse_false(Iterator& first, Iterator const& last, Attribute& attr_)
        {
            if (detail::string_parse("false", "FALSE", first, last, unused))
            {
                spirit::traits::assign_to(T(false), attr_);   // result is false
                return true;
            }
            return false;
        }
    };

}}}

#endif