<PackageReference Include="NETStandard.Library" Version="2.0.0-preview2-25401-01" />

System.Globalization.UnicodeCategory

public enum UnicodeCategory
namespace System.Globalization { public enum UnicodeCategory { ClosePunctuation = 21, ConnectorPunctuation = 18, Control = 14, CurrencySymbol = 26, DashPunctuation = 19, DecimalDigitNumber = 8, EnclosingMark = 7, FinalQuotePunctuation = 23, Format = 15, InitialQuotePunctuation = 22, LetterNumber = 9, LineSeparator = 12, LowercaseLetter = 1, MathSymbol = 25, ModifierLetter = 3, ModifierSymbol = 27, NonSpacingMark = 5, OpenPunctuation = 20, OtherLetter = 4, OtherNotAssigned = 29, OtherNumber = 10, OtherPunctuation = 24, OtherSymbol = 28, ParagraphSeparator = 13, PrivateUse = 17, SpaceSeparator = 11, SpacingCombiningMark = 6, Surrogate = 16, TitlecaseLetter = 2, UppercaseLetter = 0 } }