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Contents
// Copyright (c) 2014-2022 Dr. Colin Hirsch and Daniel Frey
// Please see LICENSE for license or visit https://github.com/taocpp/PEGTL/
#ifndef TAO_PEGTL_INTERNAL_NOT_AT_HPP
#define TAO_PEGTL_INTERNAL_NOT_AT_HPP
#include "../config.hpp"
#include "enable_control.hpp"
#include "failure.hpp"
#include "seq.hpp"
#include "../apply_mode.hpp"
#include "../rewind_mode.hpp"
#include "../type_list.hpp"
namespace TAO_PEGTL_NAMESPACE::internal
{
template< typename... Rules >
struct not_at
: not_at< seq< Rules... > >
{};
template<>
struct not_at<>
: failure
{};
template< typename Rule >
struct not_at< Rule >
{
using rule_t = not_at;
using subs_t = type_list< Rule >;
template< apply_mode,
rewind_mode,
template< typename... >
class Action,
template< typename... >
class Control,
typename ParseInput,
typename... States >
[[nodiscard]] static bool match( ParseInput& in, States&&... st )
{
const auto m = in.template mark< rewind_mode::required >();
return !Control< Rule >::template match< apply_mode::nothing, rewind_mode::active, Action, Control >( in, st... );
}
};
template< typename... Rules >
inline constexpr bool enable_control< not_at< Rules... > > = false;
} // namespace TAO_PEGTL_NAMESPACE::internal
#endif
Version data entries
11 entries across 11 versions & 1 rubygems