/// <summary>
/// Method to Strip the binary padding from a token
/// </summary>
/// <param name="bitPadDir">The bit side that has been compacted</param>
/// <param name="compaction">The compaction base ie 8bit, 7bit</param>
/// <param name="token">Token to strip binary padding from</param>
/// <returns><paramref name="token"/> stripped of all padding</returns>
private static String StripTokenBinaryPadding(String token, PadDirectionList bitPadDir, int compaction)
{
// TODO Buy ISO 15962 and figure out how single char compaction works
// with RFID this is just a logical port of the java 1.4 FOSSTRAK implementation
if (compaction >= 4)
{
if (bitPadDir == PadDirectionList.RIGHT)
{
int lastnonzerobit = token.LastIndexOf("1");
int bitsforstripped = compaction * (1 + lastnonzerobit / compaction);
return(token.Substring(0, bitsforstripped));
}
else
{
int firstnonzerobit = token.IndexOf("1");
int length = token.Length;
int bitsforstripped = compaction * (1 + (length - firstnonzerobit) / compaction);
return(token.Substring(length - bitsforstripped));
}
}
else
{
if (bitPadDir == PadDirectionList.RIGHT)
{
int lastnonzerobit = token.LastIndexOf("1");
return(token.Substring(0, lastnonzerobit));
}
else
{
int firstnonzerobit = token.IndexOf("1");
return(token.Substring(firstnonzerobit));
}
}
}
private String ApplyPadChar(String bare, PadDirectionList dir, String padchar, int requiredLength)
{
if (dir == null || padchar == null || requiredLength == -1)
{
return(bare);
}
else
{
StringBuilder buf = new StringBuilder(requiredLength);
for (int i = 0; i < requiredLength - bare.Length; i++)
{
buf.Append(padchar);
}
if (dir == PadDirectionList.RIGHT)
{
return(bare + buf.ToString());
}
else
{
// if (dir == PadDirectionList.LEFT)
return(buf.ToString() + bare);
}
}
}
private String StripPadChar(String padded, PadDirectionList dir, String padchar)
{
if (dir == PadDirectionList.LEFT)
{
return(padded.Substring(padded.IndexOf(padchar)));
}
else
{
return(padded.Substring(0, padded.Length - padded.LastIndexOf(padchar)));
}
}
private String StripPadChar(String padded, PadDirectionList dir, String padchar)
{
if (dir == PadDirectionList.LEFT)
{
return padded.Substring(padded.IndexOf(padchar));
}
else
{
return padded.Substring(0, padded.Length - padded.LastIndexOf(padchar));
}
}
private String ApplyPadChar(String bare, PadDirectionList dir, String padchar, int requiredLength)
{
if (dir == null || padchar == null || requiredLength == -1)
{
return bare;
}
else
{
StringBuilder buf = new StringBuilder(requiredLength);
for (int i = 0; i < requiredLength - bare.Length; i++)
{
buf.Append(padchar);
}
if (dir == PadDirectionList.RIGHT)
return bare + buf.ToString();
else
// if (dir == PadDirectionList.LEFT)
return buf.ToString() + bare;
}
}
/// <summary>
/// Method to Strip the binary padding from a token
/// </summary>
/// <param name="bitPadDir">The bit side that has been compacted</param>
/// <param name="compaction">The compaction base ie 8bit, 7bit</param>
/// <param name="token">Token to strip binary padding from</param>
/// <returns><paramref name="token"/> stripped of all padding</returns>
private static String StripTokenBinaryPadding(String token, PadDirectionList bitPadDir, int compaction)
{
// TODO Buy ISO 15962 and figure out how single char compaction works
// with RFID this is just a logical port of the java 1.4 FOSSTRAK implementation
if (compaction >= 4)
{
if (bitPadDir == PadDirectionList.RIGHT)
{
int lastnonzerobit = token.LastIndexOf("1");
int bitsforstripped = compaction * (1 + lastnonzerobit / compaction);
return token.Substring(0, bitsforstripped);
}
else
{
int firstnonzerobit = token.IndexOf("1");
int length = token.Length;
int bitsforstripped = compaction * (1 + (length - firstnonzerobit) / compaction);
return token.Substring(length - bitsforstripped);
}
}
else
{
if (bitPadDir == PadDirectionList.RIGHT)
{
int lastnonzerobit = token.LastIndexOf("1");
return token.Substring(0, lastnonzerobit);
}
else
{
int firstnonzerobit = token.IndexOf("1");
return token.Substring(firstnonzerobit);
}
}
}
