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106 lines
2.6 KiB
C++
Executable file
106 lines
2.6 KiB
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_ACTION_INPUT_HPP
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#define TAO_PEGTL_INTERNAL_ACTION_INPUT_HPP
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#include <cstddef>
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#include <cstdint>
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#include <string>
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#include <string_view>
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#include "iterator.hpp"
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#include "../config.hpp"
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#include "../position.hpp"
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namespace TAO_PEGTL_NAMESPACE::internal
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{
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template< typename ParseInput >
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class action_input
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{
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public:
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using input_t = ParseInput;
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using iterator_t = typename ParseInput::iterator_t;
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action_input( const iterator_t& in_begin, const ParseInput& in_input ) noexcept
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: m_begin( in_begin ),
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m_input( in_input )
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{}
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action_input( const action_input& ) = delete;
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action_input( action_input&& ) = delete;
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~action_input() = default;
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action_input& operator=( const action_input& ) = delete;
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action_input& operator=( action_input&& ) = delete;
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[[nodiscard]] const iterator_t& iterator() const noexcept
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{
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return m_begin;
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}
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[[nodiscard]] const ParseInput& input() const noexcept
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{
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return m_input;
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}
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[[nodiscard]] const char* begin() const noexcept
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{
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if constexpr( std::is_same_v< iterator_t, const char* > ) {
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return iterator();
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}
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else {
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return iterator().data;
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}
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}
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[[nodiscard]] const char* end() const noexcept
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{
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return input().current();
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}
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[[nodiscard]] bool empty() const noexcept
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{
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return begin() == end();
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}
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[[nodiscard]] std::size_t size() const noexcept
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{
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return std::size_t( end() - begin() );
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}
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[[nodiscard]] std::string string() const
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{
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return std::string( begin(), size() );
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}
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[[nodiscard]] std::string_view string_view() const noexcept
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{
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return std::string_view( begin(), size() );
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}
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[[nodiscard]] char peek_char( const std::size_t offset = 0 ) const noexcept
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{
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return begin()[ offset ];
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}
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[[nodiscard]] std::uint8_t peek_uint8( const std::size_t offset = 0 ) const noexcept
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{
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return static_cast< std::uint8_t >( peek_char( offset ) );
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}
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[[nodiscard]] TAO_PEGTL_NAMESPACE::position position() const
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{
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return input().position( iterator() ); // NOTE: Not efficient with lazy inputs.
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}
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protected:
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const iterator_t m_begin;
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const ParseInput& m_input;
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};
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} // namespace TAO_PEGTL_NAMESPACE::internal
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#endif
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