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Re: compute ISBN-10, char-to-int?

From: Emanuel Berg
Subject: Re: compute ISBN-10, char-to-int?
Date: Mon, 09 Sep 2019 19:47:23 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1 (gnu/linux)

Stefan Monnier wrote:

> (- c ?0) and (+ n ?0) work not just with
> Unicode code points, but with code points in
> any character set that is sane enough to put
> the digits from 0 to 9 consecutively in this
> order. That's the case in ASCII, EBCDIC, and
> all other charsets I know.

EBCDIC = Extended Binary-Coded Decimal Interchange Code
Seems to have something to do with IBM...

underground experts united

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