watrbx-game-engine/Base/include/util/stringbuffer.h

#pragma once
#include "rbx/Debug.h"
#include <string>

namespace RBX {
	class StringReadBuffer
	{
		std::string::const_iterator cur;
		const std::string& buffer;
			
	public:
		StringReadBuffer(const std::string& str) : buffer(str)
		{
			cur = buffer.begin();
		}

		StringReadBuffer& operator >> (unsigned char& value)
		{
			RBXASSERT(cur != buffer.end());
			if(cur == buffer.end()) {
				throw RBX::runtime_error("Reading past end of string");
			} else {
				value = *cur++;
			}

			return *this;
		}

		bool eof()
		{
			return cur == buffer.end();
		}
	};

	class StringWriteBuffer
	{
		std::string buffer;

	public:
		StringWriteBuffer() : buffer(std::string())
		{
		}

		StringWriteBuffer& operator << (unsigned char value) 
		{
			buffer.push_back(value);
			return *this;
		}

		const std::string& str()
		{
			return buffer;
		}
	};
}