- From: Eric Prud'hommeaux <eric@w3.org>
- Date: Sun, 27 Dec 2015 02:34:00 -0500
- To: xingwanghan <xingwanghan@tju.edu.cn>
- Cc: public-rdf-dawg-comments@w3.org
* xingwanghan <xingwanghan@tju.edu.cn> [2015-12-27 03:47+0800]
> Hi all:
> I wander if regex or compare operator can accept an IRI as its argument according to sparql1.1 specification.
no, but you can always use STR to "cast" it to a literal:
sparql -d 'data:text/turtle,BASE <http://a.example/> <s> <p> <o1>, <o2>.' -e 'SELECT ?o { ?s ?p ?o FILTER (REGEX(STR(?o), "ample/o1$"))}'
+-----------------------+
| ?o |
| <http://a.example/o1> |
+-----------------------+
vs. without STR:
sparql -d 'data:text/turtle,BASE <http://a.example/> <s> <p> <o1>, <o2>.' -e 'SELECT ?o { ?s ?p ?o FILTER (REGEX(?o, "ample/o1$"))}'
+----+
| ?o |
+----+
> Thanks
> 来自我的华为手机
--
-ericP
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Received on Sunday, 27 December 2015 07:34:10 UTC