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Reference for unit 'sysutils' (#rtl)

TEncoding

[Properties (by Name)] [Methods (by Name)] [Events (by Name)]

Encoding support

Declaration

Source position: sysencodingh.inc line 21

`type TEncoding = class end;`
`public`
`class procedure FreeEncodings;`		Free all standard encodings
`function Clone; virtual;`		Clone a `TEncoding` instance
`class function Convert();`		Convert an array of bytes from one encoding to another
`class function IsStandardEncoding();`		Check if the encoding is one of the standard encodings
`class function GetBufferEncoding();`		Attempt to guess the encoding of a buffer
`class function GetEncoding();`		Get an encoding instance for a given codepage.
`function GetMaxByteCount(); virtual; abstract;`		Returns the maximum number of bytes needed to represent a string
`function GetMaxCharCount(); virtual; abstract;`		Return the maximum number of characters that can be represented in a number of bytes
`function GetPreamble; virtual; abstract;`		Return the BOM Marker used by the encoding
`function GetString();`		Return a string based on an array of bytes
`property CodePage: Cardinal; [r]`		Codepage for this encoding
`property EncodingName: UnicodeString; [r]`		Name of this encoding
`property IsSingleByte: Boolean; [r]`		Is the encoding a single-byte encoding or not ?
`property ANSI: TEncoding; [r]`		Ansi encoding instance
`property ASCII: TEncoding; [r]`		ASCII encoding instance
`property BigEndianUnicode: TEncoding; [r]`		Big-endian Unicode (UTF16BE) encoding instance
`property Default: TEncoding; [r]`		Default codepage
`property Unicode: TEncoding; [r]`		UTF16 encoding instance
`property UTF7: TEncoding; [r]`		UTF7 encoding instance
`property UTF8: TEncoding; [r]`		UTF8 encoding instance

Inheritance

`TEncoding`		Encoding support
\|
`TObject`

Description

TEncoding is a mostly abstract class that contains various methods to deal with different encodings in single- and double-byte strings. In practice, one instance of a descendent of this class for each needed encoding can be instantiated and used. The class contains several class methods and properties to create such instances, and has several often-used instances available as class properties, in particular the default encoding.

TEncoding.ANSI		Ansi encoding instance
TEncoding.ASCII		ASCII encoding instance
TEncoding.Default		Default codepage
TEncoding.BigEndianUnicode		Big-endian Unicode (UTF16BE) encoding instance
TEncoding.Unicode		UTF16 encoding instance
TEncoding.UTF7		UTF7 encoding instance
TEncoding.UTF8		UTF8 encoding instance

TEncoding

Declaration

Inheritance

Description

See also