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

[Emanuel Berg]

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

http://www.barrcentral.com/help/3270/appendix_b._ascii_and_ebcdic_tables.htm?sa=X&ved=2ahUKEwiTptvPpcTkAhWqpIsKHVtRCRgQ9QF6BAgLEAI
    
Seems to have something to do with IBM...

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