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32 lines
743 B
C++
Executable file
32 lines
743 B
C++
Executable file
// Copyright (c) 2014-2022 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_PEEK_CHAR_HPP
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#define TAO_PEGTL_INTERNAL_PEEK_CHAR_HPP
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#include <cstddef>
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#include "../config.hpp"
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#include "input_pair.hpp"
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namespace TAO_PEGTL_NAMESPACE::internal
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{
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struct peek_char
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{
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using data_t = char;
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using pair_t = input_pair< char >;
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template< typename ParseInput >
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[[nodiscard]] static pair_t peek( ParseInput& in ) noexcept( noexcept( in.empty() ) )
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{
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if( in.empty() ) {
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return { 0, 0 };
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}
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return { in.peek_char(), 1 };
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}
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};
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} // namespace TAO_PEGTL_NAMESPACE::internal
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#endif
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