#include "scalar.h"
#include "scanner.h"
#include "token.h"
#include "exceptions.h"
#include <sstream>

namespace YAML
{
	Scalar::Scalar()
	{
	}

	Scalar::~Scalar()
	{
	}

	void Scalar::Parse(Scanner *pScanner, const ParserState& state)
	{
		Token *pToken = pScanner->GetNextToken();
		m_data = pToken->value;
		delete pToken;
	}

	void Scalar::Write(std::ostream& out, int indent)
	{
		for(int i=0;i<indent;i++)
			out << "  ";
		out << "{scalar}\n";
		for(int i=0;i<indent;i++)
			out << "  ";
		out << m_data << std::endl;
	}

	void Scalar::Read(std::string& s)
	{
		s = m_data;
	}

	void Scalar::Read(int& i)
	{
		std::stringstream data(m_data);
		data >> i;
		if(!data)
			throw InvalidScalar();
	}

	void Scalar::Read(unsigned& u)
	{
		std::stringstream data(m_data);
		data >> u;
		if(!data)
			throw InvalidScalar();
	}

	void Scalar::Read(long& l)
	{
		std::stringstream data(m_data);
		data >> l;
		if(!data)
			throw InvalidScalar();
	}
	
	void Scalar::Read(float& f)
	{
		std::stringstream data(m_data);
		data >> f;
		if(!data)
			throw InvalidScalar();
	}
	
	void Scalar::Read(double& d)
	{
		std::stringstream data(m_data);
		data >> d;
		if(!data)
			throw InvalidScalar();
	}

	void Scalar::Read(char& c)
	{
		std::stringstream data(m_data);
		data >> c;
		if(!data)
			throw InvalidScalar();
	}
}