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// Copyright (c) 2014-2017 Dr. Colin Hirsch and Daniel Frey
// Please see LICENSE for license or visit https://github.com/taocpp/PEGTL/
#ifndef TAOCPP_PEGTL_INCLUDE_INTERNAL_ONE_HPP
#define TAOCPP_PEGTL_INCLUDE_INTERNAL_ONE_HPP
#include <algorithm>
#include <utility>
#include "../config.hpp"
#include "bump_help.hpp"
#include "result_on_found.hpp"
#include "skip_control.hpp"
#include "../analysis/generic.hpp"
namespace tao
{
namespace TAOCPP_PEGTL_NAMESPACE
{
namespace internal
{
template< typename Char >
bool contains( const Char c, const std::initializer_list< Char >& l ) noexcept
{
return std::find( l.begin(), l.end(), c ) != l.end();
}
template< result_on_found R, typename Peek, typename Peek::data_t... Cs >
struct one
{
using analyze_t = analysis::generic< analysis::rule_type::ANY >;
template< typename Input >
static bool match( Input& in )
{
if( !in.empty() ) {
if( const auto t = Peek::peek( in ) ) {
if( contains( t.data, { Cs... } ) == bool( R ) ) {
bump_help< R, Input, typename Peek::data_t, Cs... >( in, t.size );
return true;
}
}
}
return false;
}
};
template< result_on_found R, typename Peek, typename Peek::data_t C >
struct one< R, Peek, C >
{
using analyze_t = analysis::generic< analysis::rule_type::ANY >;
template< typename Input >
static bool match( Input& in )
{
if( !in.empty() ) {
if( const auto t = Peek::peek( in ) ) {
if( ( t.data == C ) == bool( R ) ) {
bump_help< R, Input, typename Peek::data_t, C >( in, t.size );
return true;
}
}
}
return false;
}
};
template< result_on_found R, typename Peek, typename Peek::data_t... Cs >
struct skip_control< one< R, Peek, Cs... > > : std::true_type
{
};
} // namespace internal
} // namespace TAOCPP_PEGTL_NAMESPACE
} // namespace tao
#endif
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