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/*=============================================================================
Copyright (c) 2001-2014 Joel de Guzman
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_NOT_PREDICATE_MARCH_23_2007_0618PM)
#define SPIRIT_NOT_PREDICATE_MARCH_23_2007_0618PM
#if defined(_MSC_VER)
#pragma once
#endif
#include <boost/spirit/home/x3/core/parser.hpp>
namespace boost { namespace spirit { namespace x3
{
template <typename Subject>
struct not_predicate : unary_parser<Subject, not_predicate<Subject>>
{
typedef unary_parser<Subject, not_predicate<Subject>> base_type;
typedef unused_type attribute_type;
static bool const has_attribute = false;
not_predicate(Subject const& subject)
: base_type(subject) {}
template <typename Iterator, typename Context
, typename RContext, typename Attribute>
bool parse(Iterator& first, Iterator const& last
, Context const& context, RContext& rcontext, Attribute& /*attr*/) const
{
Iterator i = first;
return !this->subject.parse(i, last, context, rcontext, unused);
}
};
template <typename Subject>
inline not_predicate<typename extension::as_parser<Subject>::value_type>
operator!(Subject const& subject)
{
return {as_parser(subject)};
}
}}}
#endif
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