// Token: 0x06000BC9 RID: 3017 RVA: 0x0006AB78 File Offset: 0x00068D78
internal Iso2022JpDecoder(Iso2022JpEncoding parent)
{
this.killSwitch = Iso2022JpEncoding.InternalReadKillSwitch();
this.parent = parent;
switch (this.killSwitch)
{
case Iso2022DecodingMode.Default:
this.defaultDecoder = parent.DefaultEncoding.GetDecoder();
break;
case Iso2022DecodingMode.Override:
this.subDecoders = DecodeToCp932.GetStandardOrder();
this.cp932Decoder = Encoding.GetEncoding(932).GetDecoder();
this.currentSubDecoder = -1;
this.lastChanceDecoderIndex = DecodeToCp932.LastChanceDecoderIndex;
this.leftovers = null;
this.escape = new Escape();
break;
case Iso2022DecodingMode.Throw:
break;
default:
throw new InvalidOperationException("Invalid Iso2022DecodingMode!");
}
this.sbSummary = new StringBuilder(32);
}
public static DecodeToCp932[] GetStandardOrder()
{
DecodeToCp932[] result = new DecodeToCp932[]
{
new DecodeUsAsciiToCp932(),
new DecodeJisX0208_1983ToCp932(),
new DecodeJisX0201_1976ToCp932(),
new DecodeLastChanceToCp932()
};
DecodeToCp932.LastChanceIndex = 3;
return(result);
}
// Token: 0x06000BCD RID: 3021 RVA: 0x0006AF24 File Offset: 0x00069124
private void GetNextRun(byte[] bytes, int byteIndex, int byteCount, out int bytesConsumed, out int cp932ByteCount)
{
bytesConsumed = 0;
cp932ByteCount = 0;
DecodeToCp932.MapEscape(bytes, byteIndex, byteCount, this.escape);
if (this.escape.Sequence == EscapeSequence.Incomplete)
{
bytesConsumed += this.escape.BytesInCurrentBuffer;
this.currentSubDecoder = this.lastChanceDecoderIndex;
this.sbSummary.Append("|");
return;
}
if (this.currentSubDecoder != -1 && !this.escape.IsValidEscapeSequence)
{
int num;
int num2;
ValidationResult runLength = this.subDecoders[this.currentSubDecoder].GetRunLength(bytes, byteIndex, byteCount, this.escape, out num, out num2);
if (runLength == ValidationResult.Valid && num > 0)
{
cp932ByteCount = num2;
bytesConsumed = num;
this.sbSummary.AppendFormat("|{0}", bytesConsumed);
return;
}
}
this.runCount++;
if (this.escape.IsValidEscapeSequence)
{
int i = 0;
while (i < this.subDecoders.Length)
{
if (this.subDecoders[i].IsEscapeSequenceHandled(this.escape))
{
int num;
int num2;
ValidationResult runLength = this.subDecoders[i].GetRunLength(bytes, byteIndex, byteCount, this.escape, out num, out num2);
if (runLength != ValidationResult.Valid)
{
string message = string.Format("{0}.IsEscapeSequenceCovered and GetRunLength must agree on validity", this.subDecoders[i].GetType().Name);
throw new InvalidOperationException(message);
}
cp932ByteCount = num2;
bytesConsumed = num;
this.currentSubDecoder = i;
this.sbSummary.AppendFormat("E{0}{1}", this.escape.Abbreviation, bytesConsumed);
return;
}
else
{
i++;
}
}
}
else
{
for (int i = 0; i < this.subDecoders.Length; i++)
{
int num;
int num2;
ValidationResult runLength = this.subDecoders[i].GetRunLength(bytes, byteIndex, byteCount, this.escape, out num, out num2);
if (runLength == ValidationResult.Valid && (num > 0 || (num < byteCount && bytes[byteIndex + num] == 0)))
{
this.currentSubDecoder = i;
cp932ByteCount = num2;
bytesConsumed = num;
this.sbSummary.AppendFormat("{0}{1}", this.subDecoders[i].Abbreviation, bytesConsumed);
return;
}
}
}
throw new InvalidOperationException("What happened to the last-chance decoder?");
}