/// <summary>
/// Returns a list of integers corresponding to an input string that is Base64 VLQ encoded
/// </summary>
internal static List <int> Decode(string input)
{
List <int> result = new List <int>();
Base64CharProvider charProvider = new Base64CharProvider(input);
while (!charProvider.IsEmpty())
{
result.Add(DecodeNextInteger(charProvider));
}
return(result);
}
/// <summary>
/// Reads characters from the Base64CharProvider until a complete integer value has been extracted.
/// </summary>
private static int DecodeNextInteger(Base64CharProvider charProvider)
{
int result = 0;
bool continuation;
int shift = 0;
do
{
char c = charProvider.GetNextCharacter();
int digit = Base64Converter.FromBase64(c);
continuation = (digit & Base64VlqConstants.VlqContinuationBit) != 0;
digit &= Base64VlqConstants.VlqBaseMask;
result = result + (digit << shift);
shift = shift + Base64VlqConstants.VlqBaseShift;
} while (continuation);
return(FromVlqSigned(result));
}
