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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
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