code: function win32SplitPath(filename) {
    // Separate device+slash from tail
    var result = splitDeviceRe.exec(filename),
        device = (result[1] || '') + (result[2] || ''),
        tail = result[3] || '';
    // Split the tail into dir, basename and extension
    var result2 = splitTailRe.exec(tail),
        dir = result2[1],
        basename = result2[2],
        ext = result2[3];
    return [device, dir, basename, ext];
  }
docs: Function to split a filename into [root, dir, basename, ext]