internal static bool WriteBiffStr(BinaryWriter writer, string stringIn, bool useHighByteParam, bool highByte, bool extString, bool richString, short byteSizeOfCharCount)
{
short charCount = 0;
byte grbit = 0;
byte[] biffStrBuffer = null;
BiffRecordWriter.StringConvert stringConvert = useHighByteParam ? (highByte ? BiffRecordWriter.StringConvert.Unicode : BiffRecordWriter.StringConvert.Ascii) : BiffRecordWriter.StringConvert.None;
BuildBiffStrComponents(stringIn, stringConvert, ref charCount, ref grbit, ref biffStrBuffer);
grbit |= (byte)((extString ? 4 : 0) | (richString ? 8 : 0));
if ((byteSizeOfCharCount == 1) && (charCount >= 0))
{
writer.Write((byte)((byte)charCount));
}
else
{
writer.Write((ushort)((ushort)charCount));
}
writer.Write(grbit);
if ((biffStrBuffer != null) && (biffStrBuffer.Length > 0))
{
writer.Write(biffStrBuffer);
}
return(true);
}
internal static bool BuildBiffStrComponents(string stringIn, BiffRecordWriter.StringConvert stringConvert, ref short charCount, ref byte grbit, ref byte[] biffStrBuffer)
{
bool flag = false;
if ((stringIn != null) && (0x7fff < stringIn.Length))
{
stringIn = stringIn.Substring(0, 0x7fff);
}
if (stringIn != null)
{
charCount = (short)stringIn.Length;
}
else
{
charCount = 0;
}
if (stringConvert == BiffRecordWriter.StringConvert.Unicode)
{
flag = true;
}
else if (stringConvert == BiffRecordWriter.StringConvert.Ascii)
{
flag = false;
}
else
{
for (int i = 0; i < charCount; i++)
{
char ch = stringIn[i];
if ((ch < '\0') || (ch > '\x007f'))
{
flag = true;
break;
}
}
}
grbit = flag ? ((byte)1) : ((byte)0);
if ((stringIn != null) && (charCount > 0))
{
string[] strArray = stringIn.Split(new char[] { '\r' });
StringBuilder builder = new StringBuilder();
foreach (string str in strArray)
{
builder.Append(str);
}
stringIn = builder.ToString();
if (flag)
{
biffStrBuffer = Encoding.Unicode.GetBytes(stringIn);
}
else
{
biffStrBuffer = EncodingHelper.GetASCIIBytes(stringIn);
}
if (flag)
{
charCount = (short)(biffStrBuffer.Length / 2);
}
else
{
charCount = (short)(biffStrBuffer.Length);
}
}
else
{
charCount = 0;
}
return(true);
}
