UnicodeCategory - MSDN Documentation

UnicodeCategory Enumeration

Defines the Unicode category of a character.

Syntax

public enum UnicodeCategory

Remarks

The UnicodeCategory enumeration specifies the Unicode general category for a character. These categories are based on the Unicode standard, version 3.0. The enumeration defines categories such as uppercase letters, lowercase letters, decimal digits, punctuation, symbols, and control characters. This enumeration is used by the Char.GetUnicodeCategory method to return the category of a specified character.

Understanding Unicode categories is crucial for tasks involving text processing, internationalization, and localization, as it allows for accurate classification and handling of characters from different scripts and languages.

Members

Member	Description
`UppercaseLetter`	An uppercase letter.
`LowercaseLetter`	A lowercase letter.
`TitlecaseLetter`	A titlecase letter.
`ModifierLetter`	A modifier letter.
`OtherLetter`	Other letters, including prime and modifiers.
`NonSpacingMark`	A non-spacing mark.
`SpacingMark`	A spacing mark.
`EnclosingMark`	An enclosing mark.
`DecimalDigitNumber`	A decimal digit.
`LetterNumber`	A letter number.
`OtherNumber`	Other numbers.
`ConnectorPunctuation`	A connector punctuation.
`DashPunctuation`	A dash punctuation.
`OpenPunctuation`	An open punctuation.
`ClosePunctuation`	A close punctuation.
`InitialQuotePunctuation`	An initial quote punctuation.
`FinalQuotePunctuation`	A final quote punctuation.
`OtherPunctuation`	Other punctuation.
`MathSymbol`	A mathematical symbol.
`CurrencySymbol`	A currency symbol.
`ModifierSymbol`	A modifier symbol.
`OtherSymbol`	Other symbols.
`LineSeparator`	A line separator.
`ParagraphSeparator`	A paragraph separator.
`Control`	A control character.
`Format`	A format character.
`Surrogate`	A surrogate character.
`PrivateUse`	A private use character.
`SpaceSeparator`	A space separator.
`OtherNotAssigned`	Characters that are not assigned.

Example

C# Code Example

using System;
using System.Globalization;

public class Example
{
    public static void Main(string[] args)
    {
        char char1 = 'A';
        char char2 = 'b';
        char char3 = '5';
        char char4 = '?';
        char char5 = '\u20AC'; // Euro sign

        UnicodeCategory category1 = Char.GetUnicodeCategory(char1);
        UnicodeCategory category2 = Char.GetUnicodeCategory(char2);
        UnicodeCategory category3 = Char.GetUnicodeCategory(char3);
        UnicodeCategory category4 = Char.GetUnicodeCategory(char4);
        UnicodeCategory category5 = Char.GetUnicodeCategory(char5);

        Console.WriteLine($"'{char1}' is a {category1}");
        Console.WriteLine($"'{char2}' is a {category2}");
        Console.WriteLine($"'{char3}' is a {category3}");
        Console.WriteLine($"'{char4}' is a {category4}");
        Console.WriteLine($"'{char5}' is a {category5}");
    }
}

Output

'A' is a UppercaseLetter
'b' is a LowercaseLetter
'5' is a DecimalDigitNumber
'?' is a OtherPunctuation
'€' is a CurrencySymbol

Requirements

Assembly	Available in
mscorlib.dll	.NET Framework 2.0, .NET Core 1.0, .NET Standard 1.0, .NET 5 and later versions.