Class: TwoByteEncoder (in CharacterEncoderImplementations)

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

Inheritance:

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

Package:

stx:libbasic

Category:

Collections-Text-Encodings

Version:

rev: 1.12 date: 2018/01/19 13:44:37

user: stefan

file: CharacterEncoderImplementations__TwoByteEncoder.st directory: libbasic

module: stx stc-classLibrary: libbasic

Description:

abstract superclass of all two-byte encoders

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:

 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

 newString: size

 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

 readNextCharacterFrom: aStream