public int decode(PeterO.Support.InputStream stream, IEncodingError error)
{
if(!endofstream){
endofstream=true;
if(error.Equals(TextEncoding.ENCODING_ERROR_REPLACE))
return 0xFFFD;
else {
int[] data=new int[1];
int o=error.emitDecoderError(data,0,1);
return (o==0) ? -1 : data[0];
}
}
return -1;
}
public int decode(PeterO.Support.InputStream stream, IEncodingError error)
{
if(stream==null)throw new ArgumentException();
while(true){
int c=stream.ReadByte();
if(c<0)return -1;
if(c<0x80)
return c;
else {
int cp=indexes[(c)&0x7F];
if(cp!=0)return cp;
if(error.Equals(TextEncoding.ENCODING_ERROR_REPLACE))
return 0xFFFD;
else {
int[] data=new int[1];
int o=error.emitDecoderError(data,0,1);
if(o>0)return data[0];
}
}
}
}
public int decode(PeterO.Support.InputStream stream, int[] buffer, int offset, int length, IEncodingError error)
{
if((stream)==null)throw new ArgumentNullException("stream");
if((error)==null)throw new ArgumentNullException("error");
if((buffer)==null)throw new ArgumentNullException("buffer");
if((offset)<0)throw new ArgumentOutOfRangeException("offset"+" not greater or equal to "+"0"+" ("+Convert.ToString(offset,CultureInfo.InvariantCulture)+")");
if((length)<0)throw new ArgumentOutOfRangeException("length"+" not greater or equal to "+"0"+" ("+Convert.ToString(length,CultureInfo.InvariantCulture)+")");
if((offset+length)>buffer.Length)throw new ArgumentOutOfRangeException("offset+length"+" not less or equal to "+Convert.ToString(buffer.Length,CultureInfo.InvariantCulture)+" ("+Convert.ToString(offset+length,CultureInfo.InvariantCulture)+")");
if(length==0)return 0;
int total=0;
for(int i=0;i<length;i++){
int c=stream.ReadByte();
if(c<0){
break;
} else if(c<0x80){
buffer[offset++]=c;
total++;
} else {
int cp=indexes[(c)&0x7F];
if(cp==0){
if(error.Equals(TextEncoding.ENCODING_ERROR_REPLACE)) {
cp=0xFFFD;
} else {
int[] data=new int[1];
int o=error.emitDecoderError(data,0,1);
if(o>0)return data[0];
}
}
buffer[offset++]=cp;
total++;
}
}
return (total==0) ? -1 : total;
}
public int decode(PeterO.Support.InputStream stream, IEncodingError error)
{
if(stream==null)
throw new ArgumentException();
while(true){
int b=stream.ReadByte();
if(b<0 && bytesNeeded!=0){
bytesNeeded=0;
if(error.Equals(TextEncoding.ENCODING_ERROR_REPLACE))
return 0xFFFD;
else {
int[] data=new int[1];
int o=error.emitDecoderError(data,0,1);
if(o>0)return data[0];
continue;
}
} else if(b<0)
return -1;
if(bytesNeeded==0){
if(b<0x80)
return b;
else if(b>=0xc2 && b<=0xdf){
stream.mark(4);
bytesNeeded=1;
cp=b-0xc0;
} else if(b>=0xe0 && b<=0xef){
stream.mark(4);
lower=(b==0xe0) ? 0xa0 : 0x80;
upper=(b==0xed) ? 0x9f : 0xbf;
bytesNeeded=2;
cp=b-0xe0;
} else if(b>=0xf0 && b<=0xf4){
stream.mark(4);
lower=(b==0xf0) ? 0x90 : 0x80;
upper=(b==0xf4) ? 0x8f : 0xbf;
bytesNeeded=3;
cp=b-0xf0;
} else {
if(error.Equals(TextEncoding.ENCODING_ERROR_REPLACE))
return 0xFFFD;
else {
int[] data=new int[1];
int o=error.emitDecoderError(data,0,1);
if(o>0)return data[0];
continue;
}
}
cp<<=(6*bytesNeeded);
continue;
}
if(b<lower || b>upper){
cp=bytesNeeded=bytesSeen=0;
lower=0x80;
upper=0xbf;
stream.reset(); // 'Decrease the byte pointer by one.'
if(error.Equals(TextEncoding.ENCODING_ERROR_REPLACE))
return 0xFFFD;
else {
int[] data=new int[1];
int o=error.emitDecoderError(data,0,1);
if(o>0)return data[0];
continue;
}
}
lower=0x80;
upper=0xbf;
bytesSeen++;
cp+=(b-0x80)<<(6*(bytesNeeded-bytesSeen));
stream.mark(4);
if(bytesSeen!=bytesNeeded) {
continue;
}
int ret=cp;
cp=0;
bytesSeen=0;
bytesNeeded=0;
return ret;
}
}