Re: [xsl] Random UUID in pure XSLT?

Subject: Re: [xsl] Random UUID in pure XSLT?
From: "Martynas Jusevičius martynas@xxxxxxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>
Date: Tue, 10 Nov 2020 22:09:02 -0000
Maybe XSLT could have a built-in function? SPARQL has functions UUID()
and STRUUID(): https://www.w3.org/TR/sparql11-query/#func-uuid

On Tue, Nov 10, 2020 at 9:56 PM Piez, Wendell A. (Fed)
wendell.piez@xxxxxxxx <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> XSL-List,
>
>
>
> Thanks everyone for your answers so far. Very illuminating.
>
>
>
> The good news seems to be as Dimitre reassures us that this is certainly
possible in some form. An extension function of some kind may be in order. I
like both of Mike Kaybs ideas. At its essence, however, this isnbt really
a question about how to extend XSLTbs native capability, but about how to
deploy and support such an extension. (While it seems that no one has anything
for RFC 4122 v4 already wired up.)
>
>
>
> So yes (answering Liam), this is for SaxonHE or indeed bgeneric XSLT
3.0/XPath 3.1b, across a dispersed community of developers only a very few
of whom are XSLT-literate. A low-end, low-security option such as passing a
list of UUIDs in at runtime could even be a possibility, at least for some
subset of users.
>
>
>
> Gratefully,
>
> Wendell
>
>
>
> From: Dimitre Novatchev dnovatchev@xxxxxxxxx
<xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>
> Sent: Tuesday, November 10, 2020 3:25 PM
> To: xsl-list <xsl-list@xxxxxxxxxxxxxxxxxxxxxx>
> Subject: Re: [xsl] Random UUID in pure XSLT?
>
>
>
> Hi Wendell,
>
>
>
> This question has definite answers even for XSLT 1.0, see for example this
SO question:
>
>
> XSLT generate UUID
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> And we have had pure XSLT 1.0 random sequence generators since 2002 (FXSL):
>
> Casting the Dice with FXSL: Random Number Generation Functions in XSLT
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>
>
> HTH,
>
> Dimitre
>
>
>
> On Tue, Nov 10, 2020 at 8:36 AM Piez, Wendell A. (Fed) wendell.piez@xxxxxxxx
<xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> XSL Friends b
>
>
>
> Today I write from the day job, where I am researching the question of how
can I go about producing random UUIDs, in dozens or hundreds, inside an XSLT
pipeline, without extension functions in Saxon. The Java randomUUID() function
works nicely when itbs available, but I need to distribute the capability
for SaxonHE and eventually SaxonJS.
>
>
>
> We do not have an available implementation of RFC 4122 v4 brandom UUIDb
in pure XSLT do we, free to use (and study)? I know the functional nature of
the language makes randomness, um, problematic (when isnbt it?), which
sometimes means workarounds b thatbs all fine. Indeed so would calling out
to a web service if it is known to be reliable. I have thought about handing a
list of UUIDs in at runtime, but as I said, there may sometimes be hundreds
and perhaps thousands, which makes that approach seem a bit scary.
>
>
>
> Any thoughts or perspective would be most welcome.
>
>
>
> Thanks, Wendell
>
>
>
>
>
>
>
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> --
>
> Cheers,
>
> Dimitre Novatchev
>
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