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Contents
// Copyright (c) 2014-2020 Dr. Colin Hirsch and Daniel Frey
// Please see LICENSE for license or visit https://github.com/taocpp/PEGTL/
#ifndef TAO_JSON_PEGTL_INTERNAL_OPT_HPP
#define TAO_JSON_PEGTL_INTERNAL_OPT_HPP
#include <type_traits>
#include "../config.hpp"
#include "duseltronik.hpp"
#include "seq.hpp"
#include "skip_control.hpp"
#include "trivial.hpp"
#include "../apply_mode.hpp"
#include "../rewind_mode.hpp"
#include "../analysis/generic.hpp"
namespace TAO_JSON_PEGTL_NAMESPACE::internal
{
template< typename... Rules >
struct opt;
template<>
struct opt<>
: trivial< true >
{
};
template< typename... Rules >
struct opt
{
using analyze_t = analysis::generic< analysis::rule_type::opt, Rules... >;
template< apply_mode A,
rewind_mode,
template< typename... >
class Action,
template< typename... >
class Control,
typename Input,
typename... States >
[[nodiscard]] static bool match( Input& in, States&&... st )
{
(void)duseltronik< seq< Rules... >, A, rewind_mode::required, Action, Control >::match( in, st... );
return true;
}
};
template< typename... Rules >
inline constexpr bool skip_control< opt< Rules... > > = true;
} // namespace TAO_JSON_PEGTL_NAMESPACE::internal
#endif
Version data entries
24 entries across 24 versions & 1 rubygems