[KoCo-CVS] [Commit] cjkcodecs CHANGES NOTES.big5

[Hye-Shik C. <pe...@us...>]

perky       03/06/19 10:49:01

  Added:       .        CHANGES NOTES.big5
  Log:
  Fix some big5 mappings to give more roundtrip compatibility.
  
  Revision  Changes    Path
  1.1                  cjkcodecs/CHANGES
  
  Index: CHANGES
  ===================================================================
  Changes with CJKCodecs 1.0
  
    *) Changes a few characters of a big5 codepoint mapping to cp950's
       rather than 0xfffd. (documented on NOTES.big5)
  
  
  
  
  1.1                  cjkcodecs/NOTES.big5
  
  Index: NOTES.big5
  ===================================================================
  big5 codec maps the following characters as cp950 does rather than
  following Unicode.org's mapping.
  
  BIG5        Unicode     Description
  
  0xA15A      0x2574      SPACING UNDERSCORE
  0xA1C3      0xFFE3      SPACING HEAVY OVERSCORE
  0xA1C5      0x02CD      SPACING HEAVY UNDERSCORE
  0xA1FE      0xFF0F      LT DIAG UP RIGHT TO LOW LEFT
  0xA240      0xFF3C      LT DIAG UP LEFT TO LOW RIGHT
  0xA2CC      0x5341      HANGZHOU NUMERAL TEN
  0xA2CE      0x5345      HANGZHOU NUMERAL THIRTY
  
  Because unicode 0x5341, 0x5345 is mapped to another big5 codes already,
  a roundtrip compatibility is not guaranteed for them.