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73 lines
2.4 KiB
C++
73 lines
2.4 KiB
C++
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// Copyright (c) 2019-2022 Dr. Colin Hirsch and Daniel Frey
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// Please see LICENSE for license or visit https://github.com/taocpp/PEGTL/
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#ifndef TAO_PEGTL_INTERNAL_REMATCH_HPP
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#define TAO_PEGTL_INTERNAL_REMATCH_HPP
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#include "../config.hpp"
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#include "enable_control.hpp"
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#include "../apply_mode.hpp"
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#include "../memory_input.hpp"
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#include "../rewind_mode.hpp"
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#include "../type_list.hpp"
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namespace TAO_PEGTL_NAMESPACE::internal
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{
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template< typename Head, typename... Rules >
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struct rematch;
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template< typename Head >
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struct rematch< Head >
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{
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using rule_t = rematch;
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using subs_t = type_list< Head >;
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template< apply_mode A,
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rewind_mode M,
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template< typename... >
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class Action,
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template< typename... >
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class Control,
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typename ParseInput,
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typename... States >
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[[nodiscard]] static bool match( ParseInput& in, States&&... st )
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{
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return Control< Head >::template match< A, M, Action, Control >( in, st... );
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}
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};
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template< typename Head, typename Rule, typename... Rules >
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struct rematch< Head, Rule, Rules... >
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{
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using rule_t = rematch;
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using subs_t = type_list< Head, Rule, Rules... >;
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template< apply_mode A,
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rewind_mode,
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template< typename... >
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class Action,
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template< typename... >
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class Control,
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typename ParseInput,
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typename... States >
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[[nodiscard]] static bool match( ParseInput& in, States&&... st )
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{
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auto m = in.template mark< rewind_mode::required >();
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if( Control< Head >::template match< A, rewind_mode::active, Action, Control >( in, st... ) ) {
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memory_input< ParseInput::tracking_mode_v, typename ParseInput::eol_t, typename ParseInput::source_t > i2( m.iterator(), in.current(), in.source() );
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return m( ( Control< Rule >::template match< A, rewind_mode::active, Action, Control >( i2, st... ) && ... && ( i2.restart( m ), Control< Rules >::template match< A, rewind_mode::active, Action, Control >( i2, st... ) ) ) );
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}
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return false;
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}
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};
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template< typename Head, typename... Rules >
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inline constexpr bool enable_control< rematch< Head, Rules... > > = false;
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} // namespace TAO_PEGTL_NAMESPACE::internal
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#endif
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