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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_STRING_HPP
#define TAOCPP_PEGTL_INCLUDE_INTERNAL_STRING_HPP
#include <cstring>
#include <utility>
#include "../config.hpp"
#include "bump_help.hpp"
#include "result_on_found.hpp"
#include "skip_control.hpp"
#include "trivial.hpp"
#include "../analysis/counted.hpp"
namespace tao
{
namespace TAOCPP_PEGTL_NAMESPACE
{
namespace internal
{
inline bool unsafe_equals( const char* s, const std::initializer_list< char >& l ) noexcept
{
return std::memcmp( s, &*l.begin(), l.size() ) == 0;
}
template< char... Cs >
struct string;
template<>
struct string<>
: trivial< true >
{
};
template< char... Cs >
struct string
{
using analyze_t = analysis::counted< analysis::rule_type::ANY, sizeof...( Cs ) >;
template< typename Input >
static bool match( Input& in )
{
if( in.size( sizeof...( Cs ) ) >= sizeof...( Cs ) ) {
if( unsafe_equals( in.current(), { Cs... } ) ) {
bump_help< result_on_found::SUCCESS, Input, char, Cs... >( in, sizeof...( Cs ) );
return true;
}
}
return false;
}
};
template< char... Cs >
struct skip_control< string< Cs... > > : std::true_type
{
};
} // namespace internal
} // namespace TAOCPP_PEGTL_NAMESPACE
} // namespace tao
#endif
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