public override DecodedObject <object> decodeString(DecodedObject <object> decodedTag, Type objectClass, ElementInfo elementInfo, Stream stream)
{
if (!PERCoderUtils.is7BitEncodedString(elementInfo))
{
return(base.decodeString(decodedTag, objectClass, elementInfo, stream));
}
else
{
DecodedObject <object> result = new DecodedObject <object>();
int strLen = decodeLength(elementInfo, stream);
if (strLen <= 0)
{
result.Value = ("");
return(result);
}
BitArrayInputStream bitStream = (BitArrayInputStream)stream;
byte[] buffer = new byte[strLen];
// 7-bit decoding of string
for (int i = 0; i < strLen; i++)
{
buffer[i] = (byte)bitStream.readBits(7);
}
result.Value = new string(
Encoding.ASCII.GetChars(buffer)
);
return(result);
}
}
public override int encodeString(Object obj, Stream stream, ElementInfo elementInfo)
{
if (!PERCoderUtils.is7BitEncodedString(elementInfo))
{
return(base.encodeString(obj, stream, elementInfo));
}
else
{
int resultSize = 0;
byte[] val = Encoding.ASCII.GetBytes((string)obj);
resultSize = encodeLength(val.Length, elementInfo, stream);
if (val.Length == 0)
{
return(resultSize);
}
BitArrayOutputStream bitStream = (BitArrayOutputStream)stream;
// 7-bit encoding of string
for (int i = 0; i < val.Length; i++)
{
bitStream.writeBits(val[i], 7);
}
return(resultSize);
}
}