Re: Unicode mapping scripts cleanup - Mailing list pgsql-hackers

From Tatsuo Ishii
Subject Re: Unicode mapping scripts cleanup
Date
Msg-id 20150902.085942.569773620042330572.t-ishii@sraoss.co.jp
Whole thread Raw
In response to Unicode mapping scripts cleanup  (Peter Eisentraut <peter_e@gmx.net>)
List pgsql-hackers
> I discovered that some of the source files that one is supposed to
> download don't exist anymore or are labeled obsolete.  Also, running the
> scripts produces slight differences in the output.  So apparently, the
> CJK to Unicode mappings are still evolving and should be updated
> occasionally.  Next steps would be to commit some or all of these
> differences after additional verification, and then update the scripts
> to use whatever the non-obsolete mapping sources are supposed to be.

Some of maps were "hand tweaked" from the output of the script, for
example utf8_to_sjis.map. See git log for more details. This is due to
part of the source file was not incomplete or inappropriate. Also we
needed to compromise while creating a mapping between some local
encodings (for example SJIS) and Unicode, because in the source
mapping file round trip conversion is not guaranteed.

Best regards,
--
Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese:http://www.sraoss.co.jp



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