p := path.Clean(name)

	p = strings.TrimPrefix(p, "/")

	for strings.HasPrefix(p, "../") {
		p = p[len("../"):]
	}

	return p
}

func (r *Reader) initFileList() {
	r.fileListOnce.Do(func() {
		// Preallocate the minimum size of the index.
		// We may also synthesize additional directory entries.
		r.fileList = make([]fileListEntry, 0, len(r.File))