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53 lines
1.4 KiB
C++
53 lines
1.4 KiB
C++
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// Copyright (c) 2020-2022 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_CONTRIB_FUNCTION_HPP
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#define TAO_PEGTL_CONTRIB_FUNCTION_HPP
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#include "../config.hpp"
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#include "../apply_mode.hpp"
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#include "../rewind_mode.hpp"
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#include "../type_list.hpp"
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#include "../internal/enable_control.hpp"
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namespace TAO_PEGTL_NAMESPACE
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{
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namespace internal
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{
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template< typename F, F U >
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struct function;
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template< typename ParseInput, typename... States, bool ( *U )( ParseInput&, States... ) >
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struct function< bool ( * )( ParseInput&, States... ), U >
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{
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using rule_t = function;
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using subs_t = empty_list;
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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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[[nodiscard]] static bool match( ParseInput& in, States... st ) noexcept( noexcept( U( in, st... ) ) )
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{
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return U( in, st... );
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}
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};
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template< typename F, F U >
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inline constexpr bool enable_control< function< F, U > > = false;
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} // namespace internal
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template< auto F >
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struct function
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: internal::function< decltype( F ), F >
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{};
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} // namespace TAO_PEGTL_NAMESPACE
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#endif
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