protected virtual bool MatchItemEquals(T item, FilterPart part)
{
if (item?.FilterString == null)
{
return(false);
}
var ret = item.FilterString.Equals(part.FilterString, StringComparison.OrdinalIgnoreCase);
return(part.Negate ? !ret : ret);
}
protected override bool MatchItemStartsWith(MenuCommandBoundItem item, FilterPart part)
{
var shortcut = false;
if (FilterParts.Count == 1 && part.FilterString.Length > 1)
{
var strings = part.FilterString.ToUpper().Select(c => c.ToString());
var pattern = string.Join(".*", strings);
shortcut = Regex.IsMatch(item.PathFilterString, pattern, RegexOptions.None);
}
return(shortcut || base.MatchItemStartsWith(item, part));
}
protected virtual bool MatchItemContaining(T item, FilterPart part)
{
if (item?.FilterString == null)
{
return(false);
}
if (part.Negate)
{
return(item.FilterString.IndexOf(part.FilterString, StringComparison.OrdinalIgnoreCase) == -1);
}
return(item.FilterString.IndexOf(part.FilterString, StringComparison.OrdinalIgnoreCase) != -1);
}
protected virtual bool MatchItemStartsWith(T item, FilterPart part)
{
if (item?.FilterString == null)
{
return(false);
}
if (FilterParts.Count == 0)
{
return(true);
}
var ret = item.FilterString.StartsWith(FilterParts.First().FilterString, StringComparison.OrdinalIgnoreCase);
return(part.Negate ? !ret : ret);
}