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Posted to dev@marmotta.apache.org by "Jakob Frank (JIRA)" <ji...@apache.org> on 2014/11/03 11:04:33 UTC

[jira] [Updated] (MARMOTTA-43) RDF1.1 Language Tags

     [ https://issues.apache.org/jira/browse/MARMOTTA-43?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jakob Frank updated MARMOTTA-43:
--------------------------------
    Fix Version/s:     (was: 3.3.0)

> RDF1.1 Language Tags
> --------------------
>
>                 Key: MARMOTTA-43
>                 URL: https://issues.apache.org/jira/browse/MARMOTTA-43
>             Project: Marmotta
>          Issue Type: Sub-task
>          Components: KiWi Triple Store
>    Affects Versions: 3.1-incubating
>            Reporter: Jakob Frank
>            Assignee: Sebastian Schaffert
>            Priority: Minor
>              Labels: kiwi, rdf
>   Original Estimate: 3h
>  Remaining Estimate: 3h
>
> In RDF 1.1, language tags MUST conform to the BCP47 standard.
> We are currently using the format: xx_YY_zzz, but BCP47 requires xx-YY-zzz.
> Furthermore, RDF 1.1 requires lang tags to be all lowercase.
> Also in the DB-model, the lang-tag column is fixed to length 5 - which might be not sufficient for some special lang-tags.
> http://www.w3.org/TR/2013/WD-rdf11-concepts-20130115/#section-Graph-Literal
> http://tools.ietf.org/html/bcp47#section-2.2.9



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