Passing parameters between C++, PHP, JavaScript, etc...

/*------------------------------------------------------------------
// scs_serialize.js
// Copyright (c) 2006 
// Robert Umbehant
// rumbehant@wheresjames.com
// http://www.wheresjames.com
//
// Redistribution and use in source and binary forms, with or 
// without modification, are permitted for commercial and 
// non-commercial purposes, provided that the following 
// conditions are met:
//
// * Redistributions of source code must retain the above copyright 
//   notice, this list of conditions and the following disclaimer.
// * The names of the developers or contributors may not be used to 
//   endorse or promote products derived from this software without 
//   specific prior written permission.
//
//   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 
//   CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 
//   INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
//   MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
//   DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 
//   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
//   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
//   NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
//   LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
//   HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
//   CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
//   OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 
//   EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//----------------------------------------------------------------*/

function ScsSerialize( x_params )
{
	var ret = '';
	for ( var key in x_params )
	{
		if ( key && x_params[ key ] )
		{
			// Continue link
			if ( ret ) ret += ',';

			// Save the key
			ret += escape( key );

			if( x_params[ key ].constructor == Array ||
				x_params[ key ].constructor == Object )
			{
				ret += '{' + ScsSerialize( x_params[ key ] ) + '}'; 
			}
			else ret += '=' + escape( x_params[ key ] );

		} // end if
	}

	return ret;
}

function ScsDeserialize( x_params, x_arr )
{
	var l = x_params.length, s = 0, e = 0;

	while ( e < l )
	{
		switch( x_params[ e ] )
		{
			case ',' : case '}' :
			{
				var a = x_params.substr( s, e - s ).split( '=' );

				if ( 1 < e - s )
				{
					// Valid?
					if ( null == a[ 0 ] ) a[ 0 ] = 0;

					// Decode
					else a[ 0 ] = unescape( a[ 0 ] );

					// Single value?
					if ( null == a[ 1 ] ) x_arr[ 0 ] = '';

					// Key / value pair
					else x_arr[ a[ 0 ] ] = unescape( a[ 1 ] );

				} // end if

				// Next data
				s = e + 1;

				// Punt if end of array
				if ( '}' == x_params[ e ] ) return e + 1;

			} break;

			case '{' :
			{
				// Get the key
				var k = x_params.substr( s, e - s );

				if ( k.length )
				{
					// Decode the key
					k = unescape( k );

					// Decode array
					x_arr[ k ] = Array();
					e += ScsDeserialize( x_params.substr( e ), x_arr[ k ] );

				} // end if

				// Next data
				s = e + 1;

			} break;

		} // end switch

		// Next e
		e++;

	} // end while

	return e;
}