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- #ifndef STREAM_H_62B23520_7C8E_11DE_8A39_0800200C9A66
- #define STREAM_H_62B23520_7C8E_11DE_8A39_0800200C9A66
- #if defined(_MSC_VER) || \
- (defined(__GNUC__) && (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || \
- (__GNUC__ >= 4)) // GCC supports "pragma once" correctly since 3.4
- #pragma once
- #endif
- #include "yaml-cpp/mark.h"
- #include <cstddef>
- #include <deque>
- #include <ios>
- #include <iostream>
- #include <set>
- #include <string>
- namespace YAML {
- class StreamCharSource;
- class Stream {
- public:
- friend class StreamCharSource;
- Stream(std::istream& input);
- Stream(const Stream&) = delete;
- Stream(Stream&&) = delete;
- Stream& operator=(const Stream&) = delete;
- Stream& operator=(Stream&&) = delete;
- ~Stream();
- operator bool() const;
- bool operator!() const { return !static_cast<bool>(*this); }
- char peek() const;
- char get();
- std::string get(int n);
- void eat(int n = 1);
- static char eof() { return 0x04; }
- const Mark mark() const { return m_mark; }
- int pos() const { return m_mark.pos; }
- int line() const { return m_mark.line; }
- int column() const { return m_mark.column; }
- void ResetColumn() { m_mark.column = 0; }
- private:
- enum CharacterSet { utf8, utf16le, utf16be, utf32le, utf32be };
- std::istream& m_input;
- Mark m_mark;
- CharacterSet m_charSet;
- mutable std::deque<char> m_readahead;
- unsigned char* const m_pPrefetched;
- mutable size_t m_nPrefetchedAvailable;
- mutable size_t m_nPrefetchedUsed;
- void AdvanceCurrent();
- char CharAt(size_t i) const;
- bool ReadAheadTo(size_t i) const;
- bool _ReadAheadTo(size_t i) const;
- void StreamInUtf8() const;
- void StreamInUtf16() const;
- void StreamInUtf32() const;
- unsigned char GetNextByte() const;
- };
- // CharAt
- // . Unchecked access
- inline char Stream::CharAt(size_t i) const { return m_readahead[i]; }
- inline bool Stream::ReadAheadTo(size_t i) const {
- if (m_readahead.size() > i)
- return true;
- return _ReadAheadTo(i);
- }
- } // namespace YAML
- #endif // STREAM_H_62B23520_7C8E_11DE_8A39_0800200C9A66
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