I think you'll have a much easier time if you decode the Shift-JIS bytes to characters, work with characters, then encode the chararacters into Shift-JIS bytes when needed. These functions are found in Encode in Perl 5.8.

In reply to Re: regex: how to negate a set of character ranges? by ikegami
in thread regex: how to negate a set of character ranges? by kettle

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