private void CheckSupport()
{
// Default implementation expects both.
if (!CanReadBinaryContent || !CanReadValueChunk)
{
throw new NotSupportedException();
}
if (binary == null)
{
binary = new XmlReaderBinarySupport(this);
}
}
internal virtual int ReadValueChunk(
char [] buffer, int offset, int length)
#endif
{
if (!CanReadValueChunk)
{
throw new NotSupportedException();
}
if (binary == null)
{
binary = new XmlReaderBinarySupport(this);
}
return(binary.ReadValueChunk(buffer, offset, length));
}
public int ReadBinHex(byte[] buffer, int offset, int length)
{
if (offset < 0)
{
throw XmlReaderBinarySupport.CreateArgumentOutOfRangeException("offset", offset, "Offset must be non-negative integer.");
}
if (length < 0)
{
throw XmlReaderBinarySupport.CreateArgumentOutOfRangeException("length", length, "Length must be non-negative integer.");
}
if (buffer.Length < offset + length)
{
throw new ArgumentOutOfRangeException("buffer length is smaller than the sum of offset and length.");
}
if (length == 0)
{
return(0);
}
char[] array = new char[length * 2];
int charLength = (this.getter == null) ? this.ReadValueChunk(array, 0, length * 2) : this.getter(array, 0, length * 2);
return(XmlConvert.FromBinHexString(array, offset, charLength, buffer));
}
public virtual int ReadValueChunk (char [] buffer, int index, int count)
{
if (!CanReadValueChunk)
throw new NotSupportedException ();
if (binary == null)
binary = new XmlReaderBinarySupport (this);
return binary.ReadValueChunk (buffer, index, count);
}
private void CheckSupport ()
{
// Default implementation expects both.
if (!CanReadBinaryContent || !CanReadValueChunk)
throw new NotSupportedException ();
if (binary == null)
binary = new XmlReaderBinarySupport (this);
}
internal virtual int ReadValueChunk (
char [] buffer, int offset, int length)
#endif
{
if (!CanReadValueChunk)
throw new NotSupportedException ();
if (binary == null)
binary = new XmlReaderBinarySupport (this);
return binary.ReadValueChunk (buffer, offset, length);
}
public int ReadValueChunk(char[] buffer, int offset, int length)
{
XmlReaderBinarySupport.CommandState commandState = this.state;
if (this.state == XmlReaderBinarySupport.CommandState.None)
{
this.CheckState(false, XmlReaderBinarySupport.CommandState.None);
}
if (offset < 0)
{
throw XmlReaderBinarySupport.CreateArgumentOutOfRangeException("offset", offset, "Offset must be non-negative integer.");
}
if (length < 0)
{
throw XmlReaderBinarySupport.CreateArgumentOutOfRangeException("length", length, "Length must be non-negative integer.");
}
if (buffer.Length < offset + length)
{
throw new ArgumentOutOfRangeException("buffer length is smaller than the sum of offset and length.");
}
if (length == 0)
{
return(0);
}
if (!this.hasCache && this.reader.IsEmptyElement)
{
return(0);
}
bool flag = true;
while (flag && this.textCache.Length < length)
{
XmlNodeType nodeType = this.reader.NodeType;
if (nodeType != XmlNodeType.Text && nodeType != XmlNodeType.CDATA && nodeType != XmlNodeType.Whitespace && nodeType != XmlNodeType.SignificantWhitespace)
{
flag = false;
}
else
{
if (this.hasCache)
{
XmlNodeType nodeType2 = this.reader.NodeType;
if (nodeType2 != XmlNodeType.Text && nodeType2 != XmlNodeType.CDATA && nodeType2 != XmlNodeType.Whitespace && nodeType2 != XmlNodeType.SignificantWhitespace)
{
flag = false;
}
else
{
this.Read();
}
}
this.textCache.Append(this.reader.Value);
this.hasCache = true;
}
}
this.state = commandState;
int num = this.textCache.Length;
if (num > length)
{
num = length;
}
string text = this.textCache.ToString(0, num);
this.textCache.Remove(0, text.Length);
text.CopyTo(0, buffer, offset, text.Length);
if (num < length && flag)
{
return(num + this.ReadValueChunk(buffer, offset + num, length - num));
}
return(num);
}
public int ReadBase64(byte[] buffer, int offset, int length)
{
if (offset < 0)
{
throw XmlReaderBinarySupport.CreateArgumentOutOfRangeException("offset", offset, "Offset must be non-negative integer.");
}
if (length < 0)
{
throw XmlReaderBinarySupport.CreateArgumentOutOfRangeException("length", length, "Length must be non-negative integer.");
}
if (buffer.Length < offset + length)
{
throw new ArgumentOutOfRangeException("buffer length is smaller than the sum of offset and length.");
}
if (this.reader.IsEmptyElement)
{
return(0);
}
if (length == 0)
{
return(0);
}
int num = offset;
int num2 = offset + length;
if (this.base64CacheStartsAt >= 0)
{
for (int i = this.base64CacheStartsAt; i < 3; i++)
{
buffer[num++] = this.base64Cache[this.base64CacheStartsAt++];
if (num == num2)
{
return(num2 - offset);
}
}
}
for (int j = 0; j < 3; j++)
{
this.base64Cache[j] = 0;
}
this.base64CacheStartsAt = -1;
int num3 = (int)Math.Ceiling(1.3333333333333333 * (double)length);
int num4 = num3 % 4;
if (num4 > 0)
{
num3 += 4 - num4;
}
char[] array = new char[num3];
int num5 = (this.getter == null) ? this.ReadValueChunk(array, 0, num3) : this.getter(array, 0, num3);
for (int k = 0; k < num5 - 3; k++)
{
if ((k = this.SkipIgnorableBase64Chars(array, num5, k)) == num5)
{
break;
}
byte b = (byte)(this.GetBase64Byte(array[k]) << 2);
if (num < num2)
{
buffer[num] = b;
}
else
{
if (this.base64CacheStartsAt < 0)
{
this.base64CacheStartsAt = 0;
}
this.base64Cache[0] = b;
}
if (++k == num5)
{
break;
}
if ((k = this.SkipIgnorableBase64Chars(array, num5, k)) == num5)
{
break;
}
b = this.GetBase64Byte(array[k]);
byte b2 = (byte)(b >> 4);
if (num < num2)
{
int num6 = num;
buffer[num6] += b2;
num++;
}
else
{
byte[] array2 = this.base64Cache;
int num7 = 0;
array2[num7] += b2;
}
b2 = (byte)((b & 15) << 4);
if (num < num2)
{
buffer[num] = b2;
}
else
{
if (this.base64CacheStartsAt < 0)
{
this.base64CacheStartsAt = 1;
}
this.base64Cache[1] = b2;
}
if (++k == num5)
{
break;
}
if ((k = this.SkipIgnorableBase64Chars(array, num5, k)) == num5)
{
break;
}
b = this.GetBase64Byte(array[k]);
b2 = (byte)(b >> 2);
if (num < num2)
{
int num8 = num;
buffer[num8] += b2;
num++;
}
else
{
byte[] array3 = this.base64Cache;
int num9 = 1;
array3[num9] += b2;
}
b2 = (byte)((b & 3) << 6);
if (num < num2)
{
buffer[num] = b2;
}
else
{
if (this.base64CacheStartsAt < 0)
{
this.base64CacheStartsAt = 2;
}
this.base64Cache[2] = b2;
}
if (++k == num5)
{
break;
}
if ((k = this.SkipIgnorableBase64Chars(array, num5, k)) == num5)
{
break;
}
b2 = this.GetBase64Byte(array[k]);
if (num < num2)
{
int num10 = num;
buffer[num10] += b2;
num++;
}
else
{
byte[] array4 = this.base64Cache;
int num11 = 2;
array4[num11] += b2;
}
}
int num12 = Math.Min(num2 - offset, num - offset);
if (num12 < length && num5 > 0)
{
return(num12 + this.ReadBase64(buffer, offset + num12, length - num12));
}
return(num12);
}
