public List <ItemInfo> Query(string query)
{
if (Index == null)
{
return(new List <ItemInfo>());
}
if (!query.All(Char.IsLetter))
{
return(PlainQuery(query, false));
}
var regex = new Regex("^" + Regex.Escape(query), RegexOptions.IgnoreCase | RegexOptions.Compiled);
var result = AbbrIndex.Where(i => regex.IsMatch(i.Item1))
.Concat(WordIndex.Where(i => regex.IsMatch(i.Item1)))
.OrderBy(i => i.Item2)
.ThenBy(i => i.Item3.Name, MyPathComparer)
.ThenBy(i => i.Item3.Path, MyPathComparer)
.Select(i => i.Item3)
.ToList();
if (result.Count > 0)
{
return(result);
}
return(PlainQuery(query, true));
}