int GetChars(byte[] bytes, int byteIndex, int byteCount, char[] chars, int charIndex, ref DecoderFallbackBuffer buffer)
{
if (bytes == null)
{
throw new ArgumentNullException("bytes");
}
if (chars == null)
{
throw new ArgumentNullException("chars");
}
if (byteIndex < 0 || byteIndex > bytes.Length)
{
throw new ArgumentOutOfRangeException("byteIndex");
}
if (byteCount < 0 || byteCount > (bytes.Length - byteIndex))
{
throw new ArgumentOutOfRangeException("byteCount");
}
if (charIndex < 0 || charIndex > chars.Length)
{
throw new ArgumentOutOfRangeException("charIndex");
}
if ((chars.Length - charIndex) < byteCount)
{
throw new ArgumentException("Insufficient space available.");
}
int count = byteCount;
while (count-- > 0)
{
char c = (char)bytes [byteIndex++];
if (c < 0x80)
{
chars [charIndex++] = c;
}
else
{
if (buffer == null)
{
buffer = DecoderFallback.CreateFallbackBuffer();
}
var thisByte = new [] { bytes [byteIndex - 1] };
buffer.Fallback(thisByte, 0);
while (buffer.Remaining > 0)
{
if (charIndex < chars.Length)
{
chars [charIndex++] = buffer.GetNextChar();
continue;
}
throw new ArgumentException("The output char buffer is too small to contain the decoded characters.");
}
}
}
return(byteCount);
}
// Get a hash code for this instance.
public override int GetHashCode()
{
return(DecoderFallback.GetHashCode() << 24 + EncoderFallback.GetHashCode() << 16 + codePage);
}
// Constructor.
public UTF8Decoder (DecoderFallback fallback)
{
Fallback = fallback;
leftOverCount = 0;
leftOverBits = 0;
}
public static Encoding GetEncoding(string name, EncoderFallback encoderFallback, DecoderFallback decoderFallback)
{
if (encoderFallback == null)
{
throw new ArgumentNullException("encoderFallback");
}
if (decoderFallback == null)
{
throw new ArgumentNullException("decoderFallback");
}
var encoding = GetEncoding(name).Clone();
encoding.is_readonly = false;
encoding.encoder_fallback = encoderFallback;
encoding.decoder_fallback = decoderFallback;
return(encoding);
}
// Determine if two Encoding objects are equal.
public override bool Equals(object obj)
{
var encoding = obj as Encoding;
return(encoding != null && codePage == encoding.codePage && DecoderFallback.Equals(encoding.DecoderFallback) && EncoderFallback.Equals(encoding.EncoderFallback));
}
public static Encoding GetEncoding (string name, EncoderFallback encoderFallback, DecoderFallback decoderFallback)
{
if (encoderFallback == null)
throw new ArgumentNullException ("encoderFallback");
if (decoderFallback == null)
throw new ArgumentNullException ("decoderFallback");
var encoding = GetEncoding (name).Clone ();
encoding.is_readonly = false;
encoding.encoder_fallback = encoderFallback;
encoding.decoder_fallback = decoderFallback;
return encoding;
}
internal void SetFallbackInternal (EncoderFallback e, DecoderFallback d)
{
if (e != null)
encoder_fallback = e;
if (d != null)
decoder_fallback = d;
}
public override bool Equals(object obj)
{
var encoding = obj as UTF7Encoding;
return(encoding != null && allowOptionals == encoding.allowOptionals && EncoderFallback.Equals(encoding.EncoderFallback) && DecoderFallback.Equals(encoding.DecoderFallback));
}
