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Re: xpath string index function

From: Axel Polleres <axel.polleres@deri.org>
Date: Tue, 4 Oct 2011 05:59:56 +0200
Cc: <public-rdf-dawg@w3.org>
Message-Id: <E3570A42-E8CE-449E-9BF9-426A93DFB0F4@deri.org>
To: Andy Seaborne <andy.seaborne@epimorphics.com>
On 3 Oct 2011, at 23:39, Andy Seaborne wrote:
> I have prototyped:
> 
> STRBEFORE
> STRAFTER
> REPLACE
> 
> and didn't encountered anything unexpected.
> 
> I propose adding these as resolution of JB-7 (part 1)


+1 to add those

Note that in RIF we also had adopted these additional 3 ones:
 fn:string-join   ( possible name: STRJOIN )
 fn:iri-to-uri    ( possible name: IRI_TO_URI )
 fn:escape-html-uri ( possible name: ESCAPE_HTML_URI )

Just wanted to ask whether we think those should also be added? (the advantage being that we'd be at least comaptible with the function set in RIF)

best
Axel

> 
>         Andy
> 
> On 29/09/11 12:11, Andy Seaborne wrote:
> > Proposal:
> >
> > Add
> >
> > SUBSTR_BEFORE (keyword for fn:substring-before)
> > SUBSTR_AFTER (keyword for fn:substring-after)
> >
> > but keep using the XSD F&O operator to back the SPARQL keywords (i.e.
> > 1-based strings).
> >
> > ---------
> >
> > It seems to be this, or redo all the string operations as 0-based, and
> > have URI-calls to fn: string operations for the 1-based style.
> >
> > -----
> >
> > What about adding fn:replace as well?
> > REPLACE
> > http://www.w3.org/TR/xpath-functions/#func-replace
> >
> > (I haven't checked the details of the replace language and rules to see
> > if its sufficiently close to all know programming languages to be easy
> > to implement via library calls - any one know?)
> >
> >
> > Andy
> >
> 
> 
Received on Tuesday, 4 October 2011 04:00:30 GMT

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