ostream_wrapper.cpp

#include "yaml-cpp/ostream_wrapper.h"
#include <cstring>
#include <iostream>

namespace YAML
{
	ostream_wrapper::ostream_wrapper(): m_pStream(0), m_pos(0), m_row(0), m_col(0), m_comment(false)
	{
	}
	
	ostream_wrapper::ostream_wrapper(std::ostream& stream): m_pStream(&stream), m_pos(0), m_row(0), m_col(0), m_comment(false)
	{
	}

	ostream_wrapper::~ostream_wrapper()
	{
	}
	
    void ostream_wrapper::write(const std::string& str)
    {
        if(m_pStream) {
            m_pStream->write(str.c_str(), str.size());
        } else {
            m_buffer.resize(std::max(m_buffer.size(), m_pos + str.size() + 1));
            std::copy(str.begin(), str.end(), &m_buffer[m_pos]);
        }
        
        for(std::size_t i=0;i<str.size();i++)
            update_pos(str[i]);
    }

    void ostream_wrapper::write(const char *str, std::size_t size)
    {
        if(m_pStream) {
            m_pStream->write(str, size);
        } else {
            m_buffer.resize(std::max(m_buffer.size(), m_pos + size + 1));
            std::copy(str, str + size, &m_buffer[m_pos]);
        }
        
        for(std::size_t i=0;i<size;i++)
            update_pos(str[i]);
    }
	
    void ostream_wrapper::update_pos(char ch)
    {
		m_pos++;
        m_col++;
		
		if(ch == '\n') {
			m_row++;
			m_col = 0;
            m_comment = false;
		}
    }

	ostream_wrapper& operator << (ostream_wrapper& out, const char *str)
	{
        out.write(str, std::strlen(str));
		return out;
	}
	
	ostream_wrapper& operator << (ostream_wrapper& out, const std::string& str)
	{
		out.write(str);
		return out;
	}
	
	ostream_wrapper& operator << (ostream_wrapper& out, char ch)
	{
		out.write(&ch, 1);
		return out;
	}
}