text: // :external source:
  // Copyright (C) 2011 Milo Yip
  //
  // Permission is hereby granted, free of charge, to any person obtaining a copy
  // of this software and associated documentation files (the "Software"), to deal
  // in the Software without restriction, including without limitation the rights
  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  // copies of the Software, and to permit persons to whom the Software is
  // furnished to do so, subject to the following conditions:
  //
  // The above copyright notice and this permission notice shall be included in
  // all copies or substantial portions of the Software.
  //
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  // THE SOFTWARE.
  
  #ifndef RAPIDJSON_STRINGBUFFER_H_
  #define RAPIDJSON_STRINGBUFFER_H_
  
  #include <tvs/extern/rapidjson/rapidjson.h>
  
  #include <tvs/extern/rapidjson/internal/stack.h>
  
  
  RAPIDJSON_NAMESPACE_BEGIN
  
  //! Represents an in-memory output stream.
  /*!
      \tparam Encoding Encoding of the stream.
      \tparam Allocator type for allocating memory buffer.
      \note implements Stream concept
  */
  template <typename Encoding, typename Allocator = CrtAllocator>
  class GenericStringBuffer {
  public:
      typedef typename Encoding::Ch Ch;
  
      GenericStringBuffer(Allocator* allocator = 0, size_t capacity = kDefaultCapacity) : stack_(allocator, capacity) {}
  
  #if RAPIDJSON_HAS_CXX11_RVALUE_REFS
      GenericStringBuffer(GenericStringBuffer&& rhs) : stack_(std::move(rhs.stack_)) {}
      GenericStringBuffer& operator=(GenericStringBuffer&& rhs) {
          if (&rhs != this)
              stack_ = std::move(rhs.stack_);
          return *this;
      }
  #endif
  
      void Put(Ch c) { *stack_.template Push<Ch>() = c; }
      void Flush() {}
  
      void Clear() { stack_.Clear(); }
      void ShrinkToFit() {
          // Push and pop a null terminator. This is safe.
          *stack_.template Push<Ch>() = '\0';
          stack_.ShrinkToFit();
          stack_.template Pop<Ch>(1);
      }
      Ch* Push(size_t count) { return stack_.template Push<Ch>(count); }
      void Pop(size_t count) { stack_.template Pop<Ch>(count); }
  
      const Ch* GetString() const {
          // Push and pop a null terminator. This is safe.
          *stack_.template Push<Ch>() = '\0';
          stack_.template Pop<Ch>(1);
  
          return stack_.template Bottom<Ch>();
      }
  
      size_t GetSize() const { return stack_.GetSize(); }
  
      static const size_t kDefaultCapacity = 256;
      mutable internal::Stack<Allocator> stack_;
  
  private:
      // Prohibit copy constructor & assignment operator.
      GenericStringBuffer(const GenericStringBuffer&);
      GenericStringBuffer& operator=(const GenericStringBuffer&);
  };
  
  //! String buffer with UTF8 encoding
  typedef GenericStringBuffer<UTF8<> > StringBuffer;
  
  //! Implement specialized version of PutN() with memset() for better performance.
  template<>
  inline void PutN(GenericStringBuffer<UTF8<> >& stream, char c, size_t n) {
      std::memset(stream.stack_.Push<char>(n), c, n * sizeof(c));
  }
  
  RAPIDJSON_NAMESPACE_END
  
  #endif // RAPIDJSON_STRINGBUFFER_H_
  // :tag: (rapidjson,s)
  