void ParseBookFileName(String name, out String bookName, out String bookTitle)
{
var slashIndex = name.IndexOf('-');
if (slashIndex == -1)
{
bookName = name.Replace('.', '_');
bookTitle = name;
}
else
{
bookName = name.Substring(0, slashIndex).Replace('.', '_');
bookTitle = name.Substring(slashIndex + 1);
}
}