private static int CalculateSplitIndex(StringSlice first, StringSlice second)
{
var splitIndex = 0;
using (var firstEnumerator = first.GetEnumerator())
{
using (var secondEnumerator = second.GetEnumerator())
{
while (firstEnumerator.MoveNext() && secondEnumerator.MoveNext())
{
if (firstEnumerator.Current != secondEnumerator.Current)
{
break;
}
splitIndex++;
}
}
}
return(splitIndex);
}
