System.Character.TCharacter
Delphi
TCharacter = record
public
const
MaxHighSurrogate = #$DBFF;
MaxLowSurrogate = #$DFFF;
MaxSurrogate = #$DFFF;
MinHighSurrogate = #$D800;
MinLowSurrogate = #$DC00;
MinSurrogate = #$D800;
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; inline; static;
class function ConvertToUtf32(const HighSurrogate, LowSurrogate: Char): UCS4Char; overload; inline; static;
class function GetNumericValue(C: Char): Double; overload; inline; static;
class function GetNumericValue(C: UCS4Char): Double; overload; inline; static;
class function GetNumericValue(const S: string; Index: Integer): Double; overload; inline; static;
class function GetUnicodeCategory(C: Char): TUnicodeCategory; overload; inline; static;
class function GetUnicodeCategory(C: UCS4Char): TUnicodeCategory; overload; inline; static;
class function GetUnicodeCategory(const S: string; Index: Integer): TUnicodeCategory; overload; inline; static;
class function IsControl(C: Char): Boolean; overload; inline; static;
class function IsControl(C: UCS4Char): Boolean; overload; inline; static;
class function IsControl(const S: string; Index: Integer): Boolean; overload; inline; static;
class function IsDefined(C: Char): Boolean; overload; inline; static;
class function IsDefined(C: UCS4Char): Boolean; overload; inline; static;
class function IsDefined(const S: string; Index: Integer): Boolean; overload; inline; static;
class function IsDigit(C: Char): Boolean; overload; inline; static;
class function IsDigit(C: UCS4Char): Boolean; overload; inline; static;
class function IsDigit(const S: string; Index: Integer): Boolean; overload; inline; 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; inline; static;
class function IsLetter(C: UCS4Char): Boolean; overload; inline; static;
class function IsLetter(const S: string; Index: Integer): Boolean; overload; inline; static;
class function IsLetterOrDigit(C: Char): Boolean; overload; inline; static;
class function IsLetterOrDigit(C: UCS4Char): Boolean; overload; inline; static;
class function IsLetterOrDigit(const S: string; Index: Integer): Boolean; overload; inline; static;
class function IsLower(C: Char): Boolean; overload; inline; static;
class function IsLower(C: UCS4Char): Boolean; overload; inline; static;
class function IsLower(const S: string; Index: Integer): Boolean; overload; inline; 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; inline; static;
class function IsNumber(C: UCS4Char): Boolean; overload; inline; static;
class function IsNumber(const S: string; Index: Integer): Boolean; overload; inline; static;
class function IsPunctuation(C: Char): Boolean; overload; inline; static;
class function IsPunctuation(C: UCS4Char): Boolean; overload; inline; static;
class function IsPunctuation(const S: string; Index: Integer): Boolean; overload; inline; static;
class function IsSeparator(C: Char): Boolean; overload; inline; static;
class function IsSeparator(C: UCS4Char): Boolean; overload; inline; static;
class function IsSeparator(const S: string; Index: Integer): Boolean; overload; inline; 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; inline; static;
class function IsSurrogatePair(const HighSurrogate, LowSurrogate: Char): Boolean; overload; inline; static;
class function IsSurrogatePair(const S: string; Index: Integer): Boolean; overload; inline; static;
class function IsSymbol(C: Char): Boolean; overload; inline; static;
class function IsSymbol(C: UCS4Char): Boolean; overload; inline; static;
class function IsSymbol(const S: string; Index: Integer): Boolean; overload; inline; static;
class function IsUpper(C: Char): Boolean; overload; inline; static;
class function IsUpper(C: UCS4Char): Boolean; overload; inline; static;
class function IsUpper(const S: string; Index: Integer): Boolean; overload; inline; static;
class function IsWhiteSpace(C: Char): Boolean; overload; inline; static;
class function IsWhiteSpace(C: UCS4Char): Boolean; overload; inline; static;
class function IsWhiteSpace(const S: string; Index: Integer): Boolean; overload; inline; static;
class function ToLower(C: Char): Char; overload; inline; static;
class function ToLower(C: UCS4Char): UCS4Char; overload; inline; static;
class function ToLower(const S: string): string; overload; inline; static;
class function ToUpper(C: Char): Char; overload; inline; static;
class function ToUpper(C: UCS4Char): UCS4Char; overload; inline; static;
class function ToUpper(const S: string): string; overload; inline; static;
end deprecated 'Use TCharHelper';
C++
struct DECLSPEC_DRECORD TCharacter
{
public:
static const System::WideChar MaxHighSurrogate = (System::WideChar)(0xdbff);
static const System::WideChar MaxLowSurrogate = (System::WideChar)(0xdfff);
static const System::WideChar MaxSurrogate = (System::WideChar)(0xdfff);
static const System::WideChar MinHighSurrogate = (System::WideChar)(0xd800);
static const System::WideChar MinLowSurrogate = (System::WideChar)(0xdc00);
static const System::WideChar MinSurrogate = (System::WideChar)(0xd800);
static int __fastcall MaxCodePoint();
static System::UnicodeString __fastcall UnicodeDataVersion();
static System::UnicodeString __fastcall ConvertFromUtf32(unsigned C);
static unsigned __fastcall ConvertToUtf32(const System::UnicodeString S, int Index)/* overload */;
static unsigned __fastcall ConvertToUtf32(const System::UnicodeString S, int Index, /* out */ int &CharLength)/* overload */;
static unsigned __fastcall ConvertToUtf32(const System::WideChar HighSurrogate, const System::WideChar LowSurrogate)/* overload */;
static double __fastcall GetNumericValue(System::WideChar C)/* overload */;
static double __fastcall GetNumericValue(unsigned 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(unsigned 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(unsigned C)/* overload */;
static bool __fastcall IsControl(const System::UnicodeString S, int Index)/* overload */;
static bool __fastcall IsDefined(System::WideChar C)/* overload */;
static bool __fastcall IsDefined(unsigned C)/* overload */;
static bool __fastcall IsDefined(const System::UnicodeString S, int Index)/* overload */;
static bool __fastcall IsDigit(System::WideChar C)/* overload */;
static bool __fastcall IsDigit(unsigned 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(unsigned 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(unsigned 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(unsigned 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(unsigned 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(unsigned 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(unsigned 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(unsigned 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(unsigned 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(unsigned 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(unsigned 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(unsigned 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(unsigned C)/* overload */;
static bool __fastcall IsWhiteSpace(const System::UnicodeString S, int Index)/* overload */;
static System::WideChar __fastcall ToLower(System::WideChar C)/* overload */;
static unsigned __fastcall ToLower(unsigned C)/* overload */;
static System::UnicodeString __fastcall ToLower(const System::UnicodeString S)/* overload */;
static System::WideChar __fastcall ToUpper(System::WideChar C)/* overload */;
static unsigned __fastcall ToUpper(unsigned C)/* overload */;
static System::UnicodeString __fastcall ToUpper(const System::UnicodeString S)/* overload */;
};
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
record struct |
public | System.Character.pas System.Character.hpp |
System.Character | System.Character |
Description
Warning: TCharacter is deprecated. Please use TCharHelper.
TCharacter provides class functions for the conversion and identification of Unicode characters.
Use TCharacter functions to:
- Convert Unicode characters from UTF-32 to UTF-16 and back.
- Identify the type of a character: letter, digit, punctuation, and so on.
TCharacter uses the latest definitions of Unicode character type data as defined by unicode.org. You should not instantiate TCharacter; it contains only class functions.