private LineSearchResult LineSearch(int index)
{
int lo = 0;
int hi = this.lineBreaks.Length - 1;
while (lo <= hi)
{
int mid = (lo + hi) / 2;
uint probe = this.lineBreaks[mid];
int probePosition = EncodedLineBreaks.DecodePosition(probe);
if (probePosition < index)
{
lo = mid + 1;
}
else if (probePosition > index)
{
hi = mid - 1;
}
else
{
if (EncodedLineBreaks.IsSingleCharLineBreak(probe))
{
return(LineSearchResult.SingleCharLineBreak);
}
else
{
return(LineSearchResult.DoubleCharLineBreak);
}
}
}
return(LineSearchResult.NotLineBreak);
}
public int EndOfLineBreak(int index)
{
uint encodedPosition = this.lineBreaks[index];
int decodedPosition = EncodedLineBreaks.DecodePosition(encodedPosition);
if (EncodedLineBreaks.IsSingleCharLineBreak(encodedPosition))
{
return(decodedPosition + 1);
}
else
{
return(decodedPosition + 2);
}
}
public int StartOfLineBreak(int index)
{
// strip MSB
return(EncodedLineBreaks.DecodePosition(this.lineBreaks[index]));
}