public void RestoreToMark(MarkedPosition position)
{
long delta = this.Position - position.streamPos;
if (delta > MaxRestoreLength)
{
this.stream.Position = this.streamPosition = position.streamPos;
this.FillBufferFromStreamPosition();
}
else
{
this.bufferIndex -= (uint)delta;
}
}
/// <summary>
/// Reads the stream into the string builder until the last end marker on the line is hit.
/// </summary>
public void ReadAsciiStringUpToLastBeforeTrue(char endMarker, StringBuilder sb, Func <byte, bool> predicate)
{
StringBuilder buffer = new StringBuilder();
MarkedPosition mp = this.MarkPosition();
while (predicate(this.Current) && !this.EndOfStream)
{
if (this.Current == endMarker)
{
sb.Append(buffer);
buffer.Clear();
mp = this.MarkPosition();
}
buffer.Append((char)this.Current);
this.MoveNext();
}
this.RestoreToMark(mp);
}
