private Prl[] ExpandPrm(Prm prm, Clx clx)
{
if (prm.fComplex)
{
int index = prm.igrpprl;
return clx.RgPrc[index].GrpPrl;
}
else if (prm.prm != 0x0000)
{
ushort sprm;
if (!SinglePropertyModifiers.prm0Map.TryGetValue(prm.isprm, out sprm))
throw new WordFileReaderException("Invalid Prm: isprm");
byte value = prm.val;
Prl prl = new Prl();
prl.sprm = new Sprm(sprm);
prl.operand = new byte[] { value };
return new Prl[] { prl };
}
else
return new Prl[0];
}
private static Prl ReadPrl(Stream s, int length, out int read)
{
if (length < 2) throw new WordFileReaderException("Invalid Prl: length");
read = 0;
Prl prl = new Prl();
prl.sprm = ReadSprm(s, ref read);
int operandLength = GetLengthFromSprm(prl.sprm);
if (operandLength < 0)
{
if (prl.sprm.sprm == SinglePropertyModifiers.sprmPChgTabs)
{
if (read + ReadUtils.ByteSize > length) throw new WordFileReaderException("Invalid Prl: operand length (1)");
operandLength = ReadUtils.ReadByte(s, ref read);
if (operandLength == 255)
{
if (read + ReadUtils.ByteSize > length) throw new WordFileReaderException("Invalid Prl: operand length (2)");
operandLength = ReadUtils.ReadByte(s, ref read);
MemoryStream ms = new MemoryStream();
byte cTabs = ReadUtils.ReadByte(s);
ms.WriteByte(cTabs);
int delPortionSize = 1 + cTabs * 4;
if (read + delPortionSize > length) throw new WordFileReaderException("Invalid Prl: operand length (3)");
byte[] data = ReadUtils.ReadExact(s, cTabs * 4);
ms.Write(data, 0, data.Length);
if (read + 1 + delPortionSize > length) throw new WordFileReaderException("Invalid Prl: operand length (4)");
cTabs = ReadUtils.ReadByte(s);
ms.WriteByte(cTabs);
int addPortionSize = 1 + cTabs * 3;
if (read + delPortionSize + addPortionSize > length) throw new WordFileReaderException("Invalid Prl: operand length (5)");
data = ReadUtils.ReadExact(s, cTabs * 3);
ms.Write(data, 0, data.Length);
ms.Close();
data = ms.ToArray();
operandLength = data.Length;
prl.operand = data;
read += operandLength;
return prl;
}
}
else if (prl.sprm.sprm == SinglePropertyModifiers.sprmTDefTable)
{
if (read + ReadUtils.WordSize > length) throw new WordFileReaderException("Invalid Prl: operand length (6)");
operandLength = BitConverter.ToUInt16(ReadUtils.ReadExact(s, ReadUtils.WordSize, ref read), 0) + 1;
}
else
{
if (read + ReadUtils.ByteSize > length) throw new WordFileReaderException("Invalid Prl: operand length (0)");
operandLength = ReadUtils.ReadByte(s, ref read);
}
}
if (read + operandLength > length) throw new WordFileReaderException("Invalid Prl: operand length");
prl.operand = ReadUtils.ReadExact(s, operandLength, ref read);
return prl;
}