System.Character.TCharacter

Delphi

  TCharacter = record
  public
    const
      MaxHighSurrogate: Char = #$DBFF;
      MaxLowSurrogate: Char  = #$DFFF;
      MaxSurrogate: Char     = #$DFFF;
      MinHighSurrogate: Char = #$D800;
      MinLowSurrogate: Char  = #$DC00;
      MinSurrogate: Char     = #$DC00;
    class function MaxCodePoint: Integer; static;
    class function UnicodeDataVersion: string; static;
    class function ConvertFromUtf32(C: UCS4Char): string; static;
    class function ConvertToUtf32(const S: string; Index: Integer): UCS4Char; overload; inline; static;
    class function ConvertToUtf32(const S: string; Index: Integer; out CharLength: Integer): UCS4Char; overload; static;
    class function ConvertToUtf32(const HighSurrogate, LowSurrogate: Char): UCS4Char; overload; static;
    class function GetNumericValue(C: Char): Double; overload; static;
    class function GetNumericValue(C: UCS4Char): Double; overload; static;
    class function GetNumericValue(const S: string; Index: Integer): Double; overload; static;
    class function GetUnicodeCategory(C: Char): TUnicodeCategory; overload; static;
    class function GetUnicodeCategory(C: UCS4Char): TUnicodeCategory; overload; static;
    class function GetUnicodeCategory(const S: string; Index: Integer): TUnicodeCategory; overload; static;
    class function IsControl(C: Char): Boolean; overload; static;
    class function IsControl(C: UCS4Char): Boolean; overload; static;
    class function IsControl(const S: string; Index: Integer): Boolean; overload; static;
    class function IsDigit(C: Char): Boolean; overload; static;
    class function IsDigit(C: UCS4Char): Boolean; overload; static;
    class function IsDigit(const S: string; Index: Integer): Boolean; overload; static;
    class function IsHighSurrogate(C: Char): Boolean; overload; inline; static;
    class function IsHighSurrogate(C: UCS4Char): Boolean; overload; inline; static;
    class function IsHighSurrogate(const S: string; Index: Integer): Boolean; overload; inline; static;
    class function IsLetter(C: Char): Boolean; overload; static;
    class function IsLetter(C: UCS4Char): Boolean; overload; static;
    class function IsLetter(const S: string; Index: Integer): Boolean; overload; static;
    class function IsLetterOrDigit(C: Char): Boolean; overload; static;
    class function IsLetterOrDigit(C: UCS4Char): Boolean; overload; static;
    class function IsLetterOrDigit(const S: string; Index: Integer): Boolean; overload; static;
    class function IsLower(C: Char): Boolean; overload; static;
    class function IsLower(C: UCS4Char): Boolean; overload; static;
    class function IsLower(const S: string; Index: Integer): Boolean; overload; static;
    class function IsLowSurrogate(C: Char): Boolean; overload; inline; static;
    class function IsLowSurrogate(C: UCS4Char): Boolean; overload; inline; static;
    class function IsLowSurrogate(const S: string; Index: Integer): Boolean; overload; inline; static;
    class function IsNumber(C: Char): Boolean; overload; static;
    class function IsNumber(C: UCS4Char): Boolean; overload; static;
    class function IsNumber(const S: string; Index: Integer): Boolean; overload; static;
    class function IsPunctuation(C: Char): Boolean; overload; static;
    class function IsPunctuation(C: UCS4Char): Boolean; overload; static;
    class function IsPunctuation(const S: string; Index: Integer): Boolean; overload; static;
    class function IsSeparator(C: Char): Boolean; overload; static;
    class function IsSeparator(C: UCS4Char): Boolean; overload; static;
    class function IsSeparator(const S: string; Index: Integer): Boolean; overload; static;
    class function IsSurrogate(Surrogate: Char): Boolean; overload; inline; static;
    class function IsSurrogate(Surrogate: UCS4Char): Boolean; overload; inline; static;
    class function IsSurrogate(const S: string; Index: Integer): Boolean; overload; static;
    class function IsSurrogatePair(const HighSurrogate, LowSurrogate: Char): Boolean; overload; inline; static;
    class function IsSurrogatePair(const S: string; Index: Integer): Boolean; overload; static;
    class function IsSymbol(C: Char): Boolean; overload; static;
    class function IsSymbol(C: UCS4Char): Boolean; overload; static;
    class function IsSymbol(const S: string; Index: Integer): Boolean; overload; static;
    class function IsUpper(C: Char): Boolean; overload; static;
    class function IsUpper(C: UCS4Char): Boolean; overload; static;
    class function IsUpper(const S: string; Index: Integer): Boolean; overload; static;
    class function IsWhiteSpace(C: Char): Boolean; overload; static;
    class function IsWhiteSpace(C: UCS4Char): Boolean; overload; static;
    class function IsWhiteSpace(const S: string; Index: Integer): Boolean; overload; static;
    class function ToLower(C: Char): Char; overload; static;
    class function ToLower(C: UCS4Char): UCS4Char; overload; static;
    class function ToLower(const S: string): string; overload; static;
    class function ToUpper(C: Char): Char; overload; static;
    class function ToUpper(C: UCS4Char): UCS4Char; overload; static;
    class function ToUpper(const S: string): string; overload; static;
  end deprecated 'Use TCharHelper';

C++

struct DECLSPEC_DRECORD TCharacter _DEPRECATED_ATTRIBUTE1("Use TCharHelper"){
public:
    static System::WideChar MaxHighSurrogate;
    static System::WideChar MaxLowSurrogate;
    static System::WideChar MaxSurrogate;
    static System::WideChar MinHighSurrogate;
    static System::WideChar MinLowSurrogate;
    static System::WideChar MinSurrogate;
    static int __fastcall MaxCodePoint();
    static System::UnicodeString __fastcall UnicodeDataVersion();
    static System::UnicodeString __fastcall ConvertFromUtf32(System::UCS4Char C);
    static System::UCS4Char __fastcall ConvertToUtf32(const System::UnicodeString S, int Index)/* overload */;
    static System::UCS4Char __fastcall ConvertToUtf32(const System::UnicodeString S, int Index, /* out */ int &CharLength)/* overload */;
    static System::UCS4Char __fastcall ConvertToUtf32(const System::WideChar HighSurrogate, const System::WideChar LowSurrogate)/* overload */;
    static double __fastcall GetNumericValue(System::WideChar C)/* overload */;
    static double __fastcall GetNumericValue(System::UCS4Char C)/* overload */;
    static double __fastcall GetNumericValue(const System::UnicodeString S, int Index)/* overload */;
    static TUnicodeCategory __fastcall GetUnicodeCategory(System::WideChar C)/* overload */;
    static TUnicodeCategory __fastcall GetUnicodeCategory(System::UCS4Char C)/* overload */;
    static TUnicodeCategory __fastcall GetUnicodeCategory(const System::UnicodeString S, int Index)/* overload */;
    static bool __fastcall IsControl(System::WideChar C)/* overload */;
    static bool __fastcall IsControl(System::UCS4Char C)/* overload */;
    static bool __fastcall IsControl(const System::UnicodeString S, int Index)/* overload */;
    static bool __fastcall IsDigit(System::WideChar C)/* overload */;
    static bool __fastcall IsDigit(System::UCS4Char C)/* overload */;
    static bool __fastcall IsDigit(const System::UnicodeString S, int Index)/* overload */;
    static bool __fastcall IsHighSurrogate(System::WideChar C)/* overload */;
    static bool __fastcall IsHighSurrogate(System::UCS4Char C)/* overload */;
    static bool __fastcall IsHighSurrogate(const System::UnicodeString S, int Index)/* overload */;
    static bool __fastcall IsLetter(System::WideChar C)/* overload */;
    static bool __fastcall IsLetter(System::UCS4Char C)/* overload */;
    static bool __fastcall IsLetter(const System::UnicodeString S, int Index)/* overload */;
    static bool __fastcall IsLetterOrDigit(System::WideChar C)/* overload */;
    static bool __fastcall IsLetterOrDigit(System::UCS4Char C)/* overload */;
    static bool __fastcall IsLetterOrDigit(const System::UnicodeString S, int Index)/* overload */;
    static bool __fastcall IsLower(System::WideChar C)/* overload */;
    static bool __fastcall IsLower(System::UCS4Char C)/* overload */;
    static bool __fastcall IsLower(const System::UnicodeString S, int Index)/* overload */;
    static bool __fastcall IsLowSurrogate(System::WideChar C)/* overload */;
    static bool __fastcall IsLowSurrogate(System::UCS4Char C)/* overload */;
    static bool __fastcall IsLowSurrogate(const System::UnicodeString S, int Index)/* overload */;
    static bool __fastcall IsNumber(System::WideChar C)/* overload */;
    static bool __fastcall IsNumber(System::UCS4Char C)/* overload */;
    static bool __fastcall IsNumber(const System::UnicodeString S, int Index)/* overload */;
    static bool __fastcall IsPunctuation(System::WideChar C)/* overload */;
    static bool __fastcall IsPunctuation(System::UCS4Char C)/* overload */;
    static bool __fastcall IsPunctuation(const System::UnicodeString S, int Index)/* overload */;
    static bool __fastcall IsSeparator(System::WideChar C)/* overload */;
    static bool __fastcall IsSeparator(System::UCS4Char C)/* overload */;
    static bool __fastcall IsSeparator(const System::UnicodeString S, int Index)/* overload */;
    static bool __fastcall IsSurrogate(System::WideChar Surrogate)/* overload */;
    static bool __fastcall IsSurrogate(System::UCS4Char Surrogate)/* overload */;
    static bool __fastcall IsSurrogate(const System::UnicodeString S, int Index)/* overload */;
    static bool __fastcall IsSurrogatePair(const System::WideChar HighSurrogate, const System::WideChar LowSurrogate)/* overload */;
    static bool __fastcall IsSurrogatePair(const System::UnicodeString S, int Index)/* overload */;
    static bool __fastcall IsSymbol(System::WideChar C)/* overload */;
    static bool __fastcall IsSymbol(System::UCS4Char C)/* overload */;
    static bool __fastcall IsSymbol(const System::UnicodeString S, int Index)/* overload */;
    static bool __fastcall IsUpper(System::WideChar C)/* overload */;
    static bool __fastcall IsUpper(System::UCS4Char C)/* overload */;
    static bool __fastcall IsUpper(const System::UnicodeString S, int Index)/* overload */;
    static bool __fastcall IsWhiteSpace(System::WideChar C)/* overload */;
    static bool __fastcall IsWhiteSpace(System::UCS4Char C)/* overload */;
    static bool __fastcall IsWhiteSpace(const System::UnicodeString S, int Index)/* overload */;
    static System::WideChar __fastcall ToLower(System::WideChar C)/* overload */;
    static System::UCS4Char __fastcall ToLower(System::UCS4Char C)/* overload */;
    static System::UnicodeString __fastcall ToLower(const System::UnicodeString S)/* overload */;
    static System::WideChar __fastcall ToUpper(System::WideChar C)/* overload */;
    static System::UCS4Char __fastcall ToUpper(System::UCS4Char C)/* overload */;
    static System::UnicodeString __fastcall ToUpper(const System::UnicodeString S)/* overload */;
};

Propriétés

Type	Visibilité	Source	Unité	Parent
record struct	public	System.Character.pas System.Character.hpp	System.Character	System.Character

Description

TCharacter fournit les fonctions de classe pour la conversion et l'identification des caractères Unicode.

Utilisez les fonctions TCharacter pour :

Convertir des caractères Unicode de UTF-32 en UTF-16, et inversement.
Identifier le type d'un caractère : lettre, chiffre, ponctuation, et ainsi de suite.

TCharacter utilise les dernières définitions des données de type caractère Unicode, telles que définies par unicode.org. N'instanciez pas TCharacter ; il contient seulement des fonctions de classe.