/*============================================================================= | |
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 |