Mapping of SJIS control characters

From: Tim Greenwood (
Date: Mon Mar 23 2009 - 13:30:50 CST

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    This question really belongs in the ICU-support mail list, but I tried
    there and had no response. Some of the people who hang out here are
    good at answering these obscure questions.

    The mapping from SJIS to Unicode (as seen on
    ) has three odd conversions in the control range.

    0x1A -> 0x1C
    0x1C -> 0x7F
    0x7F -> 0x1A

    I do not see anything equivalent in EUCJP mappings, nor can I find any
    reference that shows JIS201differing from standard practice in the
    control codes.
    I know that Unicode no longer supports these mapping tables, and even
    when it did the SJIS table does not define these ranges.

    Can anyone shed any light on this issue?


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