/// <summary>
/// Return all matches of the pattern in specified text using the Horspool algorithm
/// </summary>
/// <param name="text">text to be searched</param>
/// <param name="pattern">pattern to match</param>
/// <param name="startIndex">Index at which search begins</param>
/// <returns>IEnumerable which returns the indexes of pattern matches</returns>
public static IEnumerable <int> HorspoolMatch(this String text, String pattern, int startIndex)
{
var boyerMoor = new BoyerMoore(pattern);
return(boyerMoor.HorspoolMatch(text, startIndex));
}