GitLab

  Fix inconsistency in handling illegal byte sequences.
  Convert surrogate codepoints and U+FFFE, U+FFFF to U+FFFD.
  Also, a few extra mappings.
Detail:
  enc_utf8.c: 0x80 is a continuation byte. Map stray ones to U+FFFD.
              Reset the count of expected continuation bytes to 0 when
              encountering illegal byte sequences. Previously, if the character
              callback returned non-zero, this count would not be reset, thus
              leaving the codec in an inconsistent state. Additionally, we no
              longer consume the illegal continuation byte: instead, we process
              it as a start byte next time round.
  encoding.c: Do not load extension tables for ISO-8859-{1,2,9,10,15,16}
              If these are needed, it's probably best that different charset
              names are used rather than overloading 8859-n.
  iso2022.c:  Permit SS2/3 escape sequences for EUC encode/decode.
              Disable C1 chara...

  (This isn't integrated with ISO 2022 processing though - it's standalone).
* Added a Dstroke -> Eth second-attempt conversion in various write routines,
  primarily for ISO 6937 -> Latin1 conversion (ISO 6937 unifies them).

Version 0.54. Tagged as 'Unicode-0_54'

Detail:
  Copyright messages changed from E-14 to Pace throughout, filename
   placed at top of file throughout, instead of in just some files.

  Merged branch's fixes into our code base, plus made it possible to
   get nice debug output in branched tree, and vfprintf() to stderr in
   RISC OS tree.  Exactly same source used in branched tree now (apart
   from OS specific files riscos.c and unix.c moving into layers
   directory structure).

Admin:
  Built for branched, both Unix and RISC OS.
  Built in RISC OS tree, and compiled into TextConv.


Version 0.45. Tagged as 'Unicode-0_45'

x-Current encoding didn't work if International 1.50 wasn't loaded.
Adjusted various ISO 2022 escape sequence tables to change prioritisation.
ISO 2022 writer won't shift character set until required.

Version 0.35. Tagged as 'Unicode-0_35'

Added encoding_set_flags().
Proper handling of byte order marks in UTF-16 and UCS-4.
Fixed UTF-16 surrogate writing.
Adjusted various MIME charset identifiers.
Incorporated latest Unicode Character Database (2.1.8).
Added "current system alphabet" encoding.
Created "TextConv" command line character set conversion utility.

Version 0.34. Tagged as 'Unicode-0_34'