internal string ReadCodedStringInternal(IBinaryReader reader, int? maxLength)
{
StringBuilder sb = new StringBuilder();
int count = 0;
for (count = 0; (!maxLength.HasValue) ||
(maxLength.HasValue && count < maxLength);)
{
// Check for custom codes
ushort peek = reader.PeekUShort();
byte upper = (byte)((peek >> 8) & 0xFF);
if (upper == 0xEF)
{
// Custom code with one-byte argument inline
reader.ReadByte();
byte arg = reader.ReadByte();
count++;
sb.Append($"[EF{arg:X2}]");
}
else if (peek == 0xFEFF)
{
// Custom code (hot springs) with two-byte argument following
reader.ReadShort();
ushort arg = reader.ReadUShort();
count += 2;
sb.Append($"[HOTSPRING {arg:X4}]");
}
else
{
ControlCode code = ProcessChar(reader, sb, ref count);
if (code != null && code.Flags.HasFlag(ControlCodeFlags.Terminate))
{
break;
}
}
}
// Advance the position past the end of the string if applicable
while (maxLength.HasValue && count++ < maxLength)
{
reader.ReadShort();
}
return sb.ToString();
}
