public static IEnumerable <string> GetCharsetNames(this CharsetNode that)
{
return(that.Visit(new CharsetHandleVisitor <string>(), handle => {
if (handle is RangeSetHandle.Named named)
{
return named.Name.Yield();
}
return Enumerable.Empty <string>();
}));
}
public static RangeSet <TChar> Compute <TChar>(this CharsetNode that, IRangeSetProvider <TChar> provider)
where TChar : IComparable <TChar>
{
return(that.Visit(new CharsetComputer <TChar>(), provider));
}