Class: FixedBytesEncoder (in CharacterEncoderImplementations)

• Inheritance
• Description
• Class protocol
  • queries
• Instance protocol
  • encoding & decoding

Inheritance:

   Object
   |
   +--CharacterEncoder
      |
      +--CharacterEncoderImplementations::FixedBytesEncoder
         |
         +--CharacterEncoderImplementations::SingleByteEncoder
         |
         +--CharacterEncoderImplementations::TwoByteEncoder

Package:

stx:libbasic

Category:

Collections-Text-Encodings

Version:

rev: 1.5 date: 2023/10/26 12:37:23

user: cg

file: CharacterEncoderImplementations__FixedBytesEncoder.st directory: libbasic

module: stx stc-classLibrary: libbasic

Description:

Common abstract superclass for all encodings which encode to a fixed number of bytes.

copyright
COPYRIGHT (c) 2004 by eXept Software AG
             All Rights Reserved

This software is furnished under a license and may be used
only in accordance with the terms of that license and with the
inclusion of the above copyright notice.   This software may not
be provided or otherwise made available to, or used by, any
other person.  No title to or ownership of the software is
hereby transferred.

Class protocol:

 isAbstract

Return if this class is an abstract class.
True is returned here; false for subclasses.
Abstract subclasses must redefine this again.

 maxCode

** This method must be redefined in concrete classes (subclassResponsibility) **

Instance protocol:

 decode: anEncoding

given an integer in my encoding, return a unicode codePoint for it

** This method must be redefined in concrete classes (subclassResponsibility) **

 decodeString: anEncodedStringOrByteCollection

given a string in my encoding, return a unicode-string for it

Usage example(s):

CharacterEncoderImplementations::ISO8859_1 decodeString:'hello'

 encode: aCodePoint

given a codePoint in unicode, return a single byte in my encoding for it

** This method must be redefined in concrete classes (subclassResponsibility) **

 encodeCharacter: aUnicodeCharacterOrCodePoint

encode aUnicodeCharacterOrCodePoint to a (8-bit) String or ByteArray

Usage example(s):

CharacterEncoderImplementations::ISO8859_10 new encodeCharacter:260 CharacterEncoderImplementations::ISO8859_10 new encodeCharacter:$Ą