Subject: Re: [xsl] Random UUID in pure XSLT? From: "Dimitre Novatchev dnovatchev@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> Date: Thu, 12 Nov 2020 21:10:16 -0000 |
> This all leads me to think that a non-deterministic fn:refresh-document() function might be useful in certain circumstances, > but that we would be well advised to leave the plain-vanilla document() function (and its ilk such as doc() and unparsed-text()) deterministic. > They are already a way of sneaking external state into the transformation. (As such, very useful. > Does my Schematron find my listing in the bibliography feed *today*?) I'd like to keep it easy to observe those boundaries I thought just adding another overload for these functions: *functionName($uri as xs:string, $isDeterministic as xs:boolean)* Dimitre On Thu, Nov 12, 2020 at 12:33 PM Wendell Piez wapiez@xxxxxxxxxxxxxxx < xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote: > Hi, > > Norm has it right (I think) that following this rule and being able to > trust that a processor should follow this rule (even when it does not), is > an important stabilizing factor in XSLT development, enabling a very useful > separation of concerns whose boundaries run close to the governance > boundaries (who is actually in control of which data set). > > And like David I worry what about when the scoping of variables and > parameters becomes an issue in determining what should be at the end of a > URI, whether it is the same, and whether I should care how many times a > processor makes an attempt on it. > > As far as the theory goes, I think Dimitre put his finger on it when he > pointed out the distinction between a closed system and an open one. To > what Norm and Dave have said, I think XSLT has been very well served by > maintaining this "closed universe" fiction. Indeed as Dave P has also > hinted, such a regimen of > data control (in which data that is not controlled, is at least well > understood) is more or less essential to a scalable publishing operation. > > This all leads me to think that a non-deterministic fn:refresh-document() > function might be useful in certain circumstances, but that we would be > well advised to leave the plain-vanilla document() function (and its ilk > such as doc() and unparsed-text()) deterministic. They are already a way of > sneaking external state into the transformation. (As such, very useful. > Does my Schematron find my listing in the bibliography feed *today*?) I'd > like to keep it easy to observe those boundaries. > > Cheers, Wendell > > > > > > > > > > > On Thu, Nov 12, 2020 at 11:39 AM Norm Tovey-Walsh ndw@xxxxxxxxxx < > xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote: > >> > I don't expect that anyone wrote XSLT code that relies on these >> functions >> > being deterministic. >> >> I would be very reluctant to endorse that claim. I have relied on this >> *all the time* in as much as Ibve never given a moment of thought to >> whether or not fn:doc() could possibly return a different answer because >> I know I donbt have to. >> >> Be seeing you, >> norm >> >> -- >> Norman Tovey-Walsh <ndw@xxxxxxxxxx> >> https://nwalsh.com/ >> >> > Mistakes are a part of being human. Appreciate your mistakes for what >> > they are: precious life lessons that can only be learned the hard way. >> > Unless it's a fatal mistake, which, at least, others can learn >> > from.--Al Franken >> > > > -- > ...Wendell Piez... ...wendell -at- nist -dot- gov... > ...wendellpiez.com... ...pellucidliterature.org... ...pausepress.org... > ...github.com/wendellpiez... ...gitlab.coko.foundation/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.
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Re: [xsl] Random UUID in pure XSLT?, Wendell Piez wapiez@ | Thread | Re: [xsl] Random UUID in pure XSLT?, Dimitre Novatchev dn |
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