Class: SingleByteEncoder (in CharacterEncoderImplementations)

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

Inheritance:

   Object
   |
   +--CharacterEncoder
      |
      +--CharacterEncoderImplementations::FixedBytesEncoder
         |
         +--CharacterEncoderImplementations::SingleByteEncoder
            |
            +--CharacterEncoderImplementations::ASCII
            |
            +--CharacterEncoderImplementations::CP437
            |
            +--CharacterEncoderImplementations::CP850
            |
            +--CharacterEncoderImplementations::EBCDIC
            |
            +--CharacterEncoderImplementations::ISO8859_1
            |
            +--CharacterEncoderImplementations::ISO8859_10
            |
            +--CharacterEncoderImplementations::ISO8859_11
            |
            +--CharacterEncoderImplementations::ISO8859_13
            |
            +--CharacterEncoderImplementations::ISO8859_14
            |
            +--CharacterEncoderImplementations::ISO8859_15
            |
            +--CharacterEncoderImplementations::ISO8859_16
            |
            +--CharacterEncoderImplementations::ISO8859_2
            |
            +--CharacterEncoderImplementations::ISO8859_3
            |
            +--CharacterEncoderImplementations::ISO8859_4
            |
            +--CharacterEncoderImplementations::ISO8859_5
            |
            +--CharacterEncoderImplementations::ISO8859_6
            |
            +--CharacterEncoderImplementations::ISO8859_7
            |
            +--CharacterEncoderImplementations::ISO8859_8
            |
            +--CharacterEncoderImplementations::KOI8_R
            |
            +--CharacterEncoderImplementations::MAC_Roman
            |
            +--CharacterEncoderImplementations::MS_Arabic
            |
            +--CharacterEncoderImplementations::MS_Baltic
            |
            +--CharacterEncoderImplementations::MS_Cyrillic
            |
            +--CharacterEncoderImplementations::MS_EastEuropean
            |
            +--CharacterEncoderImplementations::MS_Greek
            |
            +--CharacterEncoderImplementations::MS_Hebrew
            |
            +--CharacterEncoderImplementations::MS_Symbol
            |
            +--CharacterEncoderImplementations::MS_Turkish
            |
            +--CharacterEncoderImplementations::PluggableTranslatingEncoder
            |
            +--CharacterEncoderImplementations::SingleByteEncoderWithAsciiSubset

Package:

stx:libbasic

Category:

Collections-Text-Encodings

Version:

rev: 1.18 date: 2023/10/26 13:14:42

user: cg

file: CharacterEncoderImplementations__SingleByteEncoder.st directory: libbasic

module: stx stc-classLibrary: libbasic

Description:

Common abstract superclass for all single-byte encodings.

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

Instance protocol:

 decodeString: anEncodedStringOrByteCollection

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

Usage example(s):

CharacterEncoderImplementations::ISO8859_1 decodeString:'hello'

 encodeString: aUnicodeString

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

 characterSize: charOrCodePoint

return the number of bytes required to encode codePoint

 encodeCharacter: aUnicodeCharacterOrCodePoint on: aStream

given a character in unicode, encode it onto aStream.
Subclasses can redefine this to avoid allocating many new string instances.

Usage example(s):

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

 readNext: charactersToRead charactersFrom: stream

 readNextCharacterFrom: aStream