internal override unsafe int GetChars(byte *bytes, int byteCount, char *chars, int charCount, DecoderNLS baseDecoder)
{
ISCIIEncoding.ISCIIDecoder isciiDecoder = (ISCIIEncoding.ISCIIDecoder)baseDecoder;
Encoding.EncodingCharBuffer encodingCharBuffer = new Encoding.EncodingCharBuffer((Encoding)this, (DecoderNLS)isciiDecoder, chars, charCount, bytes, byteCount);
int index1 = this.defaultCodePage;
bool flag1 = false;
bool flag2 = false;
bool flag3 = false;
char ch1 = char.MinValue;
char ch2 = char.MinValue;
if (isciiDecoder != null)
{
index1 = isciiDecoder.currentCodePage;
flag1 = isciiDecoder.bLastATR;
flag2 = isciiDecoder.bLastVirama;
flag3 = isciiDecoder.bLastDevenagariStressAbbr;
ch1 = isciiDecoder.cLastCharForNextNukta;
ch2 = isciiDecoder.cLastCharForNoNextNukta;
}
bool flag4 = flag2 | flag1 | flag3 | (uint)ch1 > 0U;
int index2 = -1;
if (index1 >= 2 && index1 <= 11)
{
index2 = ISCIIEncoding.IndicMappingIndex[index1];
}
while (encodingCharBuffer.MoreData)
{
byte nextByte = encodingCharBuffer.GetNextByte();
if (flag4)
{
flag4 = false;
if (flag1)
{
if ((int)nextByte >= 66 && (int)nextByte <= 75)
{
index1 = (int)nextByte & 15;
index2 = ISCIIEncoding.IndicMappingIndex[index1];
flag1 = false;
continue;
}
if ((int)nextByte == 64)
{
index1 = this.defaultCodePage;
index2 = -1;
if (index1 >= 2 && index1 <= 11)
{
index2 = ISCIIEncoding.IndicMappingIndex[index1];
}
flag1 = false;
continue;
}
if ((int)nextByte == 65)
{
index1 = this.defaultCodePage;
index2 = -1;
if (index1 >= 2 && index1 <= 11)
{
index2 = ISCIIEncoding.IndicMappingIndex[index1];
}
flag1 = false;
continue;
}
if (encodingCharBuffer.Fallback((byte)239))
{
flag1 = false;
}
else
{
break;
}
}
else if (flag2)
{
if ((int)nextByte == 232)
{
if (encodingCharBuffer.AddChar('\x200C'))
{
flag2 = false;
continue;
}
break;
}
if ((int)nextByte == 233)
{
if (encodingCharBuffer.AddChar('\x200D'))
{
flag2 = false;
continue;
}
break;
}
flag2 = false;
}
else if (flag3)
{
if ((int)nextByte == 184)
{
if (encodingCharBuffer.AddChar('॒'))
{
flag3 = false;
continue;
}
break;
}
if ((int)nextByte == 191)
{
if (encodingCharBuffer.AddChar('॰'))
{
flag3 = false;
continue;
}
break;
}
if (encodingCharBuffer.Fallback((byte)240))
{
flag3 = false;
}
else
{
break;
}
}
else
{
if ((int)nextByte == 233)
{
if (encodingCharBuffer.AddChar(ch1))
{
ch1 = ch2 = char.MinValue;
continue;
}
break;
}
if (encodingCharBuffer.AddChar(ch2))
{
ch1 = ch2 = char.MinValue;
}
else
{
break;
}
}
}
if ((int)nextByte < 160)
{
if (!encodingCharBuffer.AddChar((char)nextByte))
{
break;
}
}
else if ((int)nextByte == 239)
{
flag1 = flag4 = true;
}
else
{
char ch3 = ISCIIEncoding.IndicMapping[index2, 0, (int)nextByte - 160];
char ch4 = ISCIIEncoding.IndicMapping[index2, 1, (int)nextByte - 160];
if ((int)ch4 == 0 || (int)nextByte == 233)
{
if ((int)ch3 == 0)
{
if (!encodingCharBuffer.Fallback(nextByte))
{
break;
}
}
else if (!encodingCharBuffer.AddChar(ch3))
{
break;
}
}
else if ((int)nextByte == 232)
{
if (encodingCharBuffer.AddChar(ch3))
{
flag2 = flag4 = true;
}
else
{
break;
}
}
else if (((int)ch4 & 61440) == 0)
{
flag4 = true;
ch1 = ch4;
ch2 = ch3;
}
else
{
flag3 = flag4 = true;
}
}
}
if (isciiDecoder == null || isciiDecoder.MustFlush)
{
if (flag1)
{
if (encodingCharBuffer.Fallback((byte)239))
{
flag1 = false;
}
else
{
int num1 = (int)encodingCharBuffer.GetNextByte();
}
}
else if (flag3)
{
if (encodingCharBuffer.Fallback((byte)240))
{
flag3 = false;
}
else
{
int num2 = (int)encodingCharBuffer.GetNextByte();
}
}
else if ((int)ch2 != 0)
{
if (encodingCharBuffer.AddChar(ch2))
{
ch2 = ch1 = char.MinValue;
}
else
{
int num3 = (int)encodingCharBuffer.GetNextByte();
}
}
}
if (isciiDecoder != null && (IntPtr)chars != IntPtr.Zero)
{
if (((!isciiDecoder.MustFlush ? 1 : ((uint)ch2 > 0U ? 1 : 0)) | (flag1 ? 1 : 0) | (flag3 ? 1 : 0)) != 0)
{
isciiDecoder.currentCodePage = index1;
isciiDecoder.bLastVirama = flag2;
isciiDecoder.bLastATR = flag1;
isciiDecoder.bLastDevenagariStressAbbr = flag3;
isciiDecoder.cLastCharForNextNukta = ch1;
isciiDecoder.cLastCharForNoNextNukta = ch2;
}
else
{
isciiDecoder.currentCodePage = this.defaultCodePage;
isciiDecoder.bLastVirama = false;
isciiDecoder.bLastATR = false;
isciiDecoder.bLastDevenagariStressAbbr = false;
isciiDecoder.cLastCharForNextNukta = char.MinValue;
isciiDecoder.cLastCharForNoNextNukta = char.MinValue;
}
isciiDecoder.m_bytesUsed = encodingCharBuffer.BytesUsed;
}
return(encodingCharBuffer.Count);
}
