// Decode an encoded string into a list of VE lat/lng.
function decodeLine(encoded) {
    
    var len = encoded.length;
    var index = 0;
    var array = [];
    var lat = 0;
    var lng = 0;
    try
    {
        while (index < len) {
            var b;
            var shift = 0;
            var result = 0;
            do {
                  b = encoded.charCodeAt(index++) - 63;
                  result |= (b & 0x1f) << shift;
                  shift += 5;
            } while (b >= 0x20);
            var dlat = ((result & 1) ? ~(result >> 1) : (result >> 1));
            lat += dlat;

            shift = 0;
            result = 0;
            do {
                  b = encoded.charCodeAt(index++) - 63;
                  result |= (b & 0x1f) << shift;
                  shift += 5;
            } while (b >= 0x20);
            var dlng = ((result & 1) ? ~(result >> 1) : (result >> 1));
            lng += dlng;

            array.push(new VELatLong((lat * 1e-5), (lng * 1e-5)));
        }
    }
    catch(ex)
    {
        //error in encoding.
    }
    return array;
}


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