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40 lines
951 B
C++
Executable file
40 lines
951 B
C++
Executable file
// Copyright (c) 2016-2022 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_CSTRING_READER_HPP
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#define TAO_PEGTL_INTERNAL_CSTRING_READER_HPP
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#include <cassert>
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#include <cstddef>
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#include "../config.hpp"
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namespace TAO_PEGTL_NAMESPACE::internal
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{
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struct cstring_reader
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{
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explicit cstring_reader( const char* zero_terminated ) noexcept
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: m_cstring( zero_terminated )
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{
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assert( m_cstring != nullptr );
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}
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[[nodiscard]] std::size_t operator()( char* buffer, const std::size_t length ) noexcept
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{
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std::size_t i = 0;
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char c;
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while( ( i < length ) && ( ( c = m_cstring[ i ] ) != 0 ) ) {
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*buffer++ = c;
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++i;
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}
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m_cstring += i;
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return i;
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}
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const char* m_cstring;
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};
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} // namespace TAO_PEGTL_NAMESPACE::internal
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#endif
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