68 lines
1.7 KiB
C++
68 lines
1.7 KiB
C++
#ifndef STREAM_H_62B23520_7C8E_11DE_8A39_0800200C9A66
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#define STREAM_H_62B23520_7C8E_11DE_8A39_0800200C9A66
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#if defined(_MSC_VER) || \
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(defined(__GNUC__) && (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || \
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(__GNUC__ >= 4)) // GCC supports "pragma once" correctly since 3.4
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#pragma once
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#endif
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#include "yaml-cpp/mark.h"
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#include <cstddef>
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#include <cstdint>
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#include <deque>
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#include <iostream>
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#include <string>
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namespace YAML {
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// Converts arbitrary UTF-* encoding on input to UTF-8
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class Stream {
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public:
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Stream(std::istream& input);
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Stream(const Stream&) = delete;
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Stream(Stream&&) = delete;
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Stream& operator=(const Stream&) = delete;
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Stream& operator=(Stream&&) = delete;
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~Stream();
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static char eof() { return 0x04; }
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char peek(std::size_t i = 0) const;
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char get();
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std::string get(int n);
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void eat(int n = 1);
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bool isEmpty() const;
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operator bool() const;
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const Mark mark() const { return m_mark; }
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int pos() const { return m_mark.pos; }
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int line() const { return m_mark.line; }
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int column() const { return m_mark.column; }
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void ResetColumn() { m_mark.column = 0; }
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private:
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uint_fast8_t CheckBOM(const uint8_t* buffer, std::size_t size);
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bool prepare(std::size_t i) const;
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bool StreamInUtf8() const;
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bool StreamInUtf16() const;
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bool StreamInUtf32() const;
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bool GetNextByte(uint8_t& byte) const;
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private:
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std::istream& m_input;
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uint8_t* const m_pPrefetched;
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mutable std::size_t m_nPrefetchedAvailable;
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mutable std::size_t m_nPrefetchedUsed;
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mutable std::deque<char> m_readahead;
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Mark m_mark;
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enum { utf8, utf16le, utf16be, utf32le, utf32be } m_charSet;
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};
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} // namespace YAML
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#endif // STREAM_H_62B23520_7C8E_11DE_8A39_0800200C9A66
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