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Implement modulo 11 check digit or upper-case “X” instead of 10; #7

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spoxies opened this issue Jan 11, 2024 · 0 comments
Open

Implement modulo 11 check digit or upper-case “X” instead of 10; #7

spoxies opened this issue Jan 11, 2024 · 0 comments
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enhancement New feature or request

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@spoxies
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spoxies commented Jan 11, 2024

Allow for a modulo 11 check digit, using upper-case “X” instead of 10; the details of the calculation being specified in ISO 2108-1992 and earlier editions.

According to ISBN spec
@spoxies spoxies added bug Something isn't working enhancement New feature or request and removed bug Something isn't working labels Jan 11, 2024
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