/// <summary>
/// Splits the original span with the given splitter
/// </summary>
/// <param name="original">The span to be split</param>
/// <param name="splitter">The splitter</param>
/// <param name="rest">The second part of the resulting split</param>
/// <returns>The first part of the resulting split</returns>
public static CharSpan Split(CharSpan original, CharSpan splitter, out CharSpan rest)
{
if (original.spanBegin == splitter.spanBegin)
{
rest = NULL;
if (original.spanEnd == splitter.spanEnd)
{
return(NULL);
}
return(new CharSpan(Convert.ToChar(splitter.spanEnd + 1), original.spanEnd));
}
if (original.spanEnd == splitter.spanEnd)
{
rest = NULL;
return(new CharSpan(original.spanBegin, Convert.ToChar(splitter.spanBegin - 1)));
}
rest = new CharSpan(Convert.ToChar(splitter.spanEnd + 1), original.spanEnd);
return(new CharSpan(original.spanBegin, Convert.ToChar(splitter.spanBegin - 1)));
}
/// <summary>
/// Compares the left and right spans for a decreasing order sort
/// </summary>
/// <param name="left">The left span</param>
/// <param name="right">The right span</param>
/// <returns>The order between left and right</returns>
public static int CompareReverse(CharSpan left, CharSpan right)
{
return(right.spanBegin.CompareTo(left.spanBegin));
}