74 lines
2.1 KiB
C++
74 lines
2.1 KiB
C++
// Copyright (c) 2014-2021 Dr. Colin Hirsch and Daniel Frey
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at https://www.boost.org/LICENSE_1_0.txt)
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#ifndef TAO_PEGTL_PARSE_HPP
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#define TAO_PEGTL_PARSE_HPP
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#include <type_traits>
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#include "apply_mode.hpp"
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#include "config.hpp"
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#include "normal.hpp"
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#include "nothing.hpp"
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#include "parse_error.hpp"
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#include "position.hpp"
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#include "rewind_mode.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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[[nodiscard]] inline auto get_position( const position& p ) noexcept( std::is_nothrow_copy_constructible_v< position > )
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{
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return p;
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}
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template< typename ParseInput >
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[[nodiscard]] position get_position( const ParseInput& in ) noexcept( noexcept( position( in.position() ) ) )
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{
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return in.position();
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}
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} // namespace internal
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template< typename Rule,
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template< typename... > class Action = nothing,
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template< typename... > class Control = normal,
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apply_mode A = apply_mode::action,
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rewind_mode M = rewind_mode::required,
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typename ParseInput,
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typename... States >
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auto parse( ParseInput&& in, States&&... st )
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{
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return Control< Rule >::template match< A, M, Action, Control >( in, st... );
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}
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template< typename Rule,
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template< typename... > class Action = nothing,
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template< typename... > class Control = normal,
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apply_mode A = apply_mode::action,
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rewind_mode M = rewind_mode::required,
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typename Outer,
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typename ParseInput,
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typename... States >
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auto parse_nested( const Outer& o, ParseInput&& in, States&&... st )
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{
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#if defined( __cpp_exceptions )
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try {
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return parse< Rule, Action, Control, A, M >( in, st... );
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}
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catch( parse_error& e ) {
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e.add_position( internal::get_position( o ) );
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throw;
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}
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#else
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(void)o;
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return parse< Rule, Action, Control, A, M >( in, st... );
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#endif
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}
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} // namespace TAO_PEGTL_NAMESPACE
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#endif
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