protected override IEnumerable <UPath> EnumeratePathsImpl(UPath path, string searchPattern, SearchOption searchOption, SearchTarget searchTarget)
{
var search = SearchPattern.Parse(ref path, ref searchPattern);
return(zip.Cast <ZipEntry>().Map(x => {
if (searchTarget == SearchTarget.File && !x.IsFile)
{
return null;
}
if (searchTarget == SearchTarget.Directory && !x.IsDirectory)
{
return null;
}
UPath child = UPath.DirectorySeparator + x.Name;
if (!child.FullName.StartsWith(path.FullName))
{
return null;
}
if (searchOption == SearchOption.TopDirectoryOnly)
{
child = child.RemovePrefix(path).GetFirstPart();
}
if (!search.Match(child))
{
return null;
}
return child;
}).Filter(x => x != null).Distinct());
}