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Posted to issues@commons.apache.org by "Sebb (JIRA)" <ji...@apache.org> on 2015/11/08 14:45:11 UTC

[jira] [Commented] (VALIDATOR-321) ISSN validator and converter to EAN-13

    [ https://issues.apache.org/jira/browse/VALIDATOR-321?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14995633#comment-14995633 ] 

Sebb commented on VALIDATOR-321:
--------------------------------

The "00" suffix ought to be variable, as that is decided by the publisher. However it could default to "00".

> ISSN validator and converter to EAN-13
> --------------------------------------
>
>                 Key: VALIDATOR-321
>                 URL: https://issues.apache.org/jira/browse/VALIDATOR-321
>             Project: Commons Validator
>          Issue Type: Wish
>          Components: Routines
>            Reporter: Marco Janc
>              Labels: validators
>
> Similar to the ISBNValidator an ISSNValidator would be a great feature.
> Conversion from ISSN to EAN by adding the prefix "977" and "00" right before the checkdigit to the issn code and recalculating the checksum similar to the ISBN conversion method.



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