Removing comments example: before

original.cs

internal static void SplitDirectoryFile(string path, out string directory, out string file)
{
    directory = null;
    file = null;

    // assumes a validated full path
    if (path != null)
    {
        int length = path.Length;
        int rootLength = GetRootLength(path);

        // ignore a trailing slash
        if (length > rootLength && EndsInDirectorySeparator(path))
            length--;

        // find the pivot index between end of string and root
        for (int pivot = length - 1; pivot >= rootLength; pivot--)
        {
            if (IsDirectorySeparator(path[pivot]))
            {
                directory = path.Substring(0, pivot);
                file = path.Substring(pivot + 1, length - pivot - 1);
                return;
            }
        }

        // no pivot, return just the trimmed directory
        directory = path.Substring(0, length);
    }

    return;
}

refactored.cs

public void Split()
{
    if (validatedFullPath != null)
    {
        IgnoreTrailingSlash();

        FindPivotIndexBetweenEndOfStringAndRoot();

        if(!pivotFound)
            TrimDirectory();
    }
}