public ITagGroup Get(string group, ParseContext context = null)
{
var matches = _stack.Where(l => l.Exists(group)).ToList();
if (matches.Count == 1)
{
return(matches.Single().Get(group, context));
}
if (matches.Count > 0)
{
var groups = matches.Select(lib => lib.Get(group, context)).ToList();
var tags = groups.SelectMany(grp => grp.ToList()).ToArray();
return(new CombinedTagGroup(group, tags));
}
if (context != null)
{
throw TagException.UnkownTagGroup(group).Decorate(context);
}
return(null);
}