// 获取最近的符合筛选条件的父类群。
public static Taxon GetNearestParent(this Taxon taxon, TaxonFilter filter)
{
if (taxon is null)
{
throw new ArgumentNullException();
}
//
Taxon parent = taxon.Parent;
while (parent is not null)
{
if (taxon._IsMatched(filter))
{
return(parent);
}
else
{
parent = parent.Parent;
}
}
return(null);
}
// 获取所有符合筛选条件的父类群。
public static IReadOnlyList <Taxon> GetParents(this Taxon taxon, TaxonFilter filter, TaxonFilter terminationCondition = TaxonFilter.None, bool includeTermination = true, bool skipParaphyly = true)
{
if (taxon is null)
{
throw new ArgumentNullException();
}
//
List <Taxon> result = new List <Taxon>();
if (!taxon.IsRoot)
{
Taxon parent = skipParaphyly ? taxon._GetParentSkipParaphyly() : taxon.Parent;
while (parent is not null)
{
if (parent._IsMatched(terminationCondition))
{
if (includeTermination)
{
result.Add(parent);
}
break;
}
if (parent._IsMatched(filter))
{
result.Add(parent);
}
parent = skipParaphyly ? parent._GetParentSkipParaphyly() : parent.Parent;
}
}
return(result);
}
//
private static bool _IsMatched(this Taxon taxon, TaxonFilter filter)
{
if (taxon is null)
{
throw new ArgumentNullException();
}
//
if (filter == TaxonFilter.None)
{
return(false);
}
else if (filter == TaxonFilter.Any)
{
return(true);
}
else
{
bool nameIsMatched = false;
bool rankIsMatched = false;
if (filter.HasFlag(TaxonFilter.NamedOrAnonymous))
{
nameIsMatched = true;
}
else if (taxon.IsNamed && filter.HasFlag(TaxonFilter.Named))
{
nameIsMatched = true;
}
else if (taxon.IsAnonymous && filter.HasFlag(TaxonFilter.Anonymous))
{
nameIsMatched = true;
}
if (nameIsMatched)
{
if (filter.HasFlag(TaxonFilter.AnyRank))
{
rankIsMatched = true;
}
else if (taxon.Rank.IsUnranked() && filter.HasFlag(TaxonFilter.Unranked))
{
rankIsMatched = true;
}
else if (taxon.Rank.IsClade() && filter.HasFlag(TaxonFilter.Clade))
{
rankIsMatched = true;
}
else if (taxon.Rank.IsBasicSecondaryRank() && filter.HasFlag(TaxonFilter.BasicSecondaryRank))
{
rankIsMatched = true;
}
else if (taxon.Rank.IsSecondaryRank() && filter.HasFlag(TaxonFilter.SecondaryRank))
{
rankIsMatched = true;
}
else if (taxon.Rank.IsBasicPrimaryRank() && filter.HasFlag(TaxonFilter.BasicPrimaryRank))
{
rankIsMatched = true;
}
else if (taxon.Rank.IsPrimaryRank() && filter.HasFlag(TaxonFilter.PrimaryRank))
{
rankIsMatched = true;
}
}
return(nameIsMatched && rankIsMatched);
}
}
