Class: ISO10646_to_UTF16LE (in CharacterEncoderImplementations)

• Inheritance
• Description
• Instance protocol
  • encoding & decoding
  • private
  • queries
  • stream support
• Examples

Inheritance:

   Object
   |
   +--CharacterEncoder
      |
      +--CharacterEncoderImplementations::VariableBytesEncoder
         |
         +--CharacterEncoderImplementations::ISO10646_to_UTF16BE
            |
            +--CharacterEncoderImplementations::ISO10646_to_UTF16LE

Package:

stx:libbasic

Category:

Collections-Text-Encodings

Version:

rev: 1.9 date: 2019/05/28 12:50:26

user: stefan

file: CharacterEncoderImplementations__ISO10646_to_UTF16LE.st directory: libbasic

module: stx stc-classLibrary: libbasic

Description:

encodes/decodes UTF16 LittleEndian (little-end-first)

Notice the naming (many are confused):
    Unicode is the set of number-to-glyph assignments
whereas:
    UTF8, UTF16 etc. are a concrete way of xmitting Unicode codePoints (numbers).

ST/X NEVER uses UTF8 or UTF16 internally - all characters are full 24bit characters.
Only when exchanging data, are these converted into UTF8 (or other) byte sequences.

Instance protocol:

 decode: codePoint

 encode: codePoint

 encodeString: aUnicodeString

return the UTF-16 representation of a aUnicodeString.
The resulting string is only useful to be stored on some external file,
not for being used inside ST/X.

 encodeString: aUnicodeString on: aStream

given a string in unicode, encode it onto aStream.

 nextTwoByteValueFrom: aStream

 nameOfEncoding

 encodeCharacter: aUnicodeCharacter on: aStream

given a character in unicode, encode it onto aStream.

Examples: