[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Random UUID in pure XSLT?
Hi, Dimitre, suggesting the web service option, offers for $i in 1 to $N return unparsed-text("https://uuidgen.org/api/v/4") I'll try this ... but what prevents an XSLT engine giving me the same result each time? (Oh I see.) Update since yesterday -- I've had some apparent success coding up an implementation of UUID v4 using fn:random-number-generator() ... results so far are here (comments welcome): https://github.com/wendellpiez/oscal-tools/blob/issue10-uuid-util/xslt/uuid/r andom-util.xsl The functions are deterministic -- they return the same UUID (or UUID sequence of specified length) for the same seed. In my application, this is actually a feature. Thanks for all the info and help so far this is great! Cheers, Wendell On Wed, Nov 11, 2020 at 1:32 PM Dimitre Novatchev dnovatchev@xxxxxxxxx < xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote: > > how can I go about producing random UUIDs, in dozens or hundreds, > inside an XSLT pipeline, without extension functions in Saxon. > > This is actually very easy and doesn't require the use of any extension > functions: > > *unparsed-text("https://uuidgen.org/api/v/4 > <https://uuidgen.org/api/v/4>")* > > or if you need N of them: > > *for $i in 1 to $N* > * return unparsed-text("https://uuidgen.org/api/v/4 > <https://uuidgen.org/api/v/4>") * > > > > p > > 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 >> >> >> >> >> >> >> XSL-List info and archive <http://www.mulberrytech.com/xsl/xsl-list> >> EasyUnsubscribe <http://lists.mulberrytech.com/unsub/xsl-list/782854> (by >> email) >> > > > -- > Cheers, > Dimitre Novatchev > --------------------------------------- > Truly great madness cannot be achieved without significant intelligence. > --------------------------------------- > To invent, you need a good imagination and a pile of junk > ------------------------------------- > Never fight an inanimate object > ------------------------------------- > To avoid situations in which you might make mistakes may be the > biggest mistake of all > ------------------------------------ > Quality means doing it right when no one is looking. > ------------------------------------- > You've achieved success in your field when you don't know whether what > you're doing is work or play > ------------------------------------- > To achieve the impossible dream, try going to sleep. > ------------------------------------- > Facts do not cease to exist because they are ignored. > ------------------------------------- > Typing monkeys will write all Shakespeare's works in 200yrs.Will they > write all patents, too? :) > ------------------------------------- > Sanity is madness put to good use. > ------------------------------------- > I finally figured out the only reason to be alive is to enjoy it. > > XSL-List info and archive <http://www.mulberrytech.com/xsl/xsl-list> > EasyUnsubscribe <http://lists.mulberrytech.com/unsub/xsl-list/174322> (by > email <>) > -- ...Wendell Piez... ...wendell -at- nist -dot- gov... ...wendellpiez.com... ...pellucidliterature.org... ...pausepress.org... ...github.com/wendellpiez... ...gitlab.coko.foundation/wendell...
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