public async ValueTask WriteStringAsync(StringBuilder sb, Stream stream, CancellationToken token)
{
var remaining = FreeCapacity;
var value = sb.ToString();
// Try with an approximate cell value length
var bytesNeeded = value.Length * Utf8Helper.MaxBytePerChar;
if (bytesNeeded > remaining)
{
// Try with a more accurate cell value length
bytesNeeded = Utf8Helper.GetByteCount(value);
}
if (bytesNeeded > remaining)
{
await FlushToStreamAsync(stream, token).ConfigureAwait(false);
}
// Write whole value if it fits in the buffer
if (bytesNeeded <= _buffer.Length)
{
_index += Utf8Helper.GetBytes(value, GetSpan());
return;
}
// Otherwise, write value piece by piece
var valueIndex = 0;
while (!WriteLongString(value.AsSpan(), ref valueIndex))
{
await FlushToStreamAsync(stream, token).ConfigureAwait(false);
}
}
private static int GetSheetElementByteCount(string path, int sheetId)
{
var sheetIdDigits = sheetId.GetNumberOfDigits();
return(SheetStart.Length
+ Utf8Helper.GetByteCount(path)
+ BetweenPathAndRelationId.Length
+ SharedMetadata.RelationIdPrefix.Length
+ sheetIdDigits
+ RelationEnd.Length);
}
private static int GetSheetElementByteCount(string path)
{
return(SheetStart.Length
+ Utf8Helper.GetByteCount(path)
+ SheetEnd.Length);
}