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public abstract CreateFallbackBuffer ( ) : |
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| return | ||
public void HandleFallback(ref EncoderFallbackBuffer buffer,
char[] chars, ref int charIndex, ref int charCount,
byte[] bytes, ref int byteIndex, ref int byteCount, object state)
{
if (buffer == null)
{
buffer = EncoderFallback.CreateFallbackBuffer();
}
if (charCount > 1 && (Char.IsSurrogate(chars[charIndex]) && Char.IsSurrogate(chars[charIndex + 1])))
{
buffer.Fallback(chars[charIndex], chars[charIndex + 1], charIndex);
charIndex++;
charCount--;
}
else
{
buffer.Fallback(chars[charIndex], charIndex);
}
char[] tmp = new char[buffer.Remaining];
int idx = 0;
while (buffer.Remaining > 0)
{
tmp[idx++] = buffer.GetNextChar();
}
var len = state == null?
GetBytes(tmp, 0, tmp.Length, bytes, byteIndex)
: GetBytesInternal(tmp, 0, tmp.Length, bytes, byteIndex, true, state);
byteIndex += len;
byteCount -= len;
}
unsafe static char[] GetFallbackChars(char *chars, char *start, EncoderFallback fallback, ref EncoderFallbackBuffer buffer)
{
if (buffer == null)
{
buffer = fallback.CreateFallbackBuffer();
}
buffer.Fallback(*chars, (int)(chars - start));
char[] fallback_chars = new char [buffer.Remaining];
for (int i = 0; i < fallback_chars.Length; i++)
{
fallback_chars [i] = buffer.GetNextChar();
}
buffer.Reset();
return(fallback_chars);
}
public unsafe void HandleFallback(ref EncoderFallbackBuffer buffer,
char *chars, ref int charIndex, ref int charCount,
byte *bytes, ref int byteIndex, ref int byteCount, object state)
{
if (buffer == null)
{
buffer = EncoderFallback.CreateFallbackBuffer();
}
if (charCount > 1 && (Char.IsSurrogate(chars [charIndex]) && Char.IsSurrogate(chars [charIndex + 1])))
{
buffer.Fallback(chars [charIndex], chars [charIndex + 1], charIndex);
charIndex++;
charCount--;
}
else
{
buffer.Fallback(chars [charIndex], charIndex);
}
char[] tmp = new char [buffer.Remaining];
int idx = 0;
while (buffer.Remaining > 0)
tmp [idx++] = buffer.GetNextChar();
fixed(char *tmparr = tmp)
{
var outbytes = bytes == null ? null : bytes + byteIndex;
var len = state == null?
GetBytes(tmparr, tmp.Length, outbytes, byteCount)
: GetBytesInternal(tmparr, tmp.Length, outbytes, byteCount, true, state);
byteIndex += len;
byteCount -= len;
}
}
unsafe int InternalGetBytes(char *chars, int charLength, int charIndex, int charCount, byte[] bytes, int byteIndex, ref EncoderFallbackBuffer buffer, ref char[] fallback_chars)
{
if (bytes == null)
{
throw new ArgumentNullException("bytes");
}
if (charIndex < 0 || charIndex > charLength)
{
throw new ArgumentOutOfRangeException("charIndex");
}
if (charCount < 0 || charCount > (charLength - charIndex))
{
throw new ArgumentOutOfRangeException("charCount");
}
if (byteIndex < 0 || byteIndex > bytes.Length)
{
throw new ArgumentOutOfRangeException("byteIndex");
}
if ((bytes.Length - byteIndex) < charCount)
{
throw new ArgumentException("Insufficient space available.");
}
int count = charCount;
char ch;
while (count-- > 0)
{
ch = chars [charIndex++];
if (ch < (char)0x80)
{
bytes [byteIndex++] = (byte)ch;
}
else
{
if (buffer == null)
{
buffer = EncoderFallback.CreateFallbackBuffer();
}
if (Char.IsSurrogate(ch) && count > 1 && Char.IsSurrogate(chars [charIndex]))
{
buffer.Fallback(ch, chars [charIndex], charIndex++ - 1);
}
else
{
buffer.Fallback(ch, charIndex - 1);
}
if (fallback_chars == null || fallback_chars.Length < buffer.Remaining)
{
fallback_chars = new char [buffer.Remaining];
}
for (int i = 0; i < fallback_chars.Length; i++)
{
fallback_chars[i] = buffer.GetNextChar();
}
byteIndex += GetBytes(fallback_chars, 0, fallback_chars.Length, bytes, byteIndex, ref buffer, ref fallback_chars);
}
}
return(charCount);
}
unsafe static char[] GetFallbackChars (char* chars, char* start, EncoderFallback fallback, ref EncoderFallbackBuffer buffer)
{
if (buffer == null)
buffer = fallback.CreateFallbackBuffer ();
buffer.Fallback (*chars, (int) (chars - start));
char[] fallback_chars = new char [buffer.Remaining];
for (int i = 0; i < fallback_chars.Length; i++)
fallback_chars [i] = buffer.GetNextChar ();
buffer.Reset ();
return fallback_chars;
}