/* -----------------------------------------------------------------------------
	GSFramework
	Copyright 2001-2013 Emmanuel Julien. All Rights Reserved.
----------------------------------------------------------------------------- */


#ifndef	__NASCIIENC__
#define	__NASCIIENC__


		#include "ntypes.h"


/*!
	@short	ASCII encoding.

	This class currently provide two commonly used encoding method:
	yEnc and UUEncode.

	@author Emmanuel Julien (ejulien@gsworks.fr)
*/
namespace	nAsciiEncoder
{
		/*!
			@short	Perform UUEncoding.

			@param	source		Input binary stream.
			@param	len			Input binary stream length.
			@param	uuenc		Output buffer.
			@param	max			Output buffer length.
			@return				The number of bytes written to the output buffer.

			@note	If yenc is NULL the function can be used to check the size
					of the encoded stream prior to allocating an output buffer.
		*/
		uint		UUEncode(const uchar *source, size_t len, uchar *uuenc = 0, size_t max = 0);

		/*!
			@short	Perform UUDecoding.

			@param	source		UUEncoded byte stream.
			@param	len			UUEncoded byte stream length.
			@param	bin			Output buffer.
			@param	max			Output buffer length.
			@return				The number of bytes written to the output buffer.

			@note	If bin is NULL the function can be used to check the size
					of the decoded stream prior to allocating an output buffer.
		*/
		uint		UUDecode(const uchar *source, size_t len, uchar *bin = 0, size_t max = 0);
		/*!
			@short	Perform yEncoding.

			@param	source		Input binary stream.
			@param	len			Input binary stream length.
			@param	yenc		Output buffer.
			@param	max			Output buffer length.
			@param	line_len	Number of character to output before a line-feed character is sent.
			@return				The number of bytes written to the output buffer.

			@note	If yenc is NULL the function can be used to check the size
					of the encoded stream prior to allocating an output buffer.
		*/
		uint		yEncode(const uchar *source, size_t len, uchar *yenc = 0, size_t max = 0, uint line_len = 64);

		/*!
			@short	Perform yDecoding.

			@param	source		yEncoded byte stream.
			@param	len			yEncoded byte stream length.
			@param	bin			Output buffer.
			@param	max			Output buffer length.
			@return				The number of bytes written to the output buffer.

			@note	If bin is NULL the function can be used to check the size
					of the decoded stream prior to allocating an output buffer.
		*/
		uint		yDecode(const uchar *source, size_t len, uchar *bin = 0, size_t max = 0);
};


#endif	// __NASCIIENC__