public override int FormatValue(StringBuilder dest, HexBytes hexBytes, long valueIndex, HexValueFormatterFlags flags)
{
int b = hexBytes.TryReadByte(valueIndex);
if (b < 0)
{
return(WriteInvalid(dest));
}
return(WriteFormattedValue(dest, b.ToString(culture)));
}
public override int FormatValue(StringBuilder dest, HexBytes hexBytes, long valueIndex, HexValueFormatterFlags flags)
{
int b = hexBytes.TryReadByte(valueIndex);
if (b < 0)
{
return(WriteInvalid(dest));
}
WriteHexByte(dest, flags, (byte)b);
return(0);
}
public override int FormatValue(StringBuilder dest, HexBytes hexBytes, long valueIndex, HexValueFormatterFlags flags)
{
int b = hexBytes.TryReadByte(valueIndex);
if (b < 0)
{
return(WriteInvalid(dest));
}
for (int i = 0; i < 8; i++, b <<= 1)
{
dest.Append((b & 0x80) != 0 ? '1' : '0');
}
return(0);
}
HexCell[] WriteAscii(HexBytes hexBytes, HexSpan visibleBytesSpan, out VST.Span fullSpan, out VST.Span visibleSpan)
{
Debug.Assert(showAscii);
cellList.Clear();
int fullStart = CurrentTextIndex;
int?visStart = null;
int?visEnd = null;
var pos = visibleBytesSpan.Start;
int cellPos = 0;
for (ulong i = 0; i < bytesPerLine; i++, pos++)
{
int groupIndex = (cellPos / groupSizeInBytes) & 1;
HexBufferSpan bufferSpan;
int cellStart = CurrentTextIndex;
if (visibleBytesSpan.Contains(pos))
{
if (visStart == null)
{
visStart = CurrentTextIndex;
}
long index = (long)(pos - visibleBytesSpan.Start).ToUInt64();
int b = hexBytes.TryReadByte(index);
if (b < 0)
{
stringBuilder.Append('?');
}
else if (b < 0x20 || b > 0x7E)
{
stringBuilder.Append('.');
}
else
{
stringBuilder.Append((char)b);
}
bufferSpan = new HexBufferSpan(buffer, new HexSpan(pos, 1));
}
else
{
if (visStart != null && visEnd == null)
{
visEnd = CurrentTextIndex;
}
stringBuilder.Append(' ');
bufferSpan = default;
}
var cellSpan = VST.Span.FromBounds(cellStart, CurrentTextIndex);
var separatorSpan = new VST.Span(cellSpan.End, 0);
cellList.Add(new HexCell((int)i, groupIndex, bufferSpan, cellSpan, cellSpan, separatorSpan, cellSpan));
cellPos++;
}
if ((ulong)fullStart + bytesPerLine != (ulong)CurrentTextIndex)
{
throw new InvalidOperationException();
}
if (visStart != null && visEnd == null)
{
visEnd = CurrentTextIndex;
}
visibleSpan = visStart == null ? default : VST.Span.FromBounds(visStart.Value, visEnd.Value);
fullSpan = VST.Span.FromBounds(fullStart, CurrentTextIndex);
if (AsciiSpan != fullSpan)
{
throw new InvalidOperationException();
}
return(cellList.ToArray());
}
