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Posted to dev@jena.apache.org by "Andy Seaborne (JIRA)" <ji...@apache.org> on 2013/09/24 17:51:04 UTC
[jira] [Closed] (JENA-542) Command line queries are always parsed
in extended mode
[ https://issues.apache.org/jira/browse/JENA-542?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andy Seaborne closed JENA-542.
------------------------------
> Command line queries are always parsed in extended mode
> -------------------------------------------------------
>
> Key: JENA-542
> URL: https://issues.apache.org/jira/browse/JENA-542
> Project: Apache Jena
> Issue Type: Bug
> Components: Cmd line tools
> Affects Versions: Jena 2.10.1
> Reporter: Joshua Taylor
> Assignee: Andy Seaborne
> Priority: Minor
> Fix For: Jena 2.11.1
>
>
> As discovered in a jena-users thread [1], the command line SPARQL query tools (arq and sparql) always process a query specified on the command line in extended mode, regardless of the value of --strict. E.g.,
> sparql --strict --data empty.n3 "select * where { ?s <p>{2} ?o }"
> doesn't complain, even though the elt{n} syntax didn't make it into SPARQL 1.1. If the query is put into a file, though, the following behavior holds:
> Complains:
> sparql --data empty.n3 --file Q.rq # extension .rq
> Does not.
> arq --data empty.n3 --file Q.rq
> arq --data empty.n3 --file Q.arq
> sparql --data empty.n3 --file Q.arq # extension .arq
> Relate to this (possibly should be a separate ticket), it's not clear how the extension of the file interacts with the --strict flag, or what exactly the --strict flag is supposed to do. According to Andy (in the linked thread),
> """
> "arq" implies the extended language and "--strict" really refers to execution semantics. "arq --strict" could be made to be (strict) SPARQL 1.1.
> """
> however, the documentation (sparql --help) says
> --strict Operate in strict SPARQL mode (no extensions of any kind)
> and it seems elt{n}, since elt{n} didn't make it into the specs, _must_ be an extension of some kind.
> [1] http://mail-archives.apache.org/mod_mbox/jena-users/201309.mbox/%3CCA%2BQ4JnnROnG_5LW-aEtOWPt0C_PYNjYTOj4x-SmUAhshCN2buQ%40mail.gmail.com%3E
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