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Re: [xsl] Increasing sequence ?
Subject: Re: [xsl] Increasing sequence ? From: "Leo Studer leo.studer@xxxxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> Date: Thu, 26 Mar 2015 18:32:21 -0000 |
good point however use empty($seq) and not count > On 25.03.2015, at 19:52, Wolfgang Laun wolfgang.laun@xxxxxxxxx <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote: > > On 25 March 2015 at 18:36, Dimitre Novatchev dnovatchev@xxxxxxxxx <mailto:dnovatchev@xxxxxxxxx> <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx <mailto:xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>> wrote: > > every $v in 1 to (count($sequence)-1) satisfies ($sequence[$v] lt $sequence[$v+1]) > > This may be inefficient (depending on the XPath engine being used). > > I think the following has better chances of being more efficient -- > write an xsl:function, name it, say, "increasing". The body of this > function can be just: > > not($seq[2]) or $seq[1] lt $seq[2] and increasing(subsequence($seq, 2)) > > It would appear that this makes -1,0,2,1 an ascending sequence. I dislike this "empty-is-false trick" - once in a while you get bitten. > > count($seq) < 2 or ... > > -W > > > > > Cheers, > Dimitre > > > On Wed, Mar 25, 2015 at 10:20 AM, Leo Studer leo.studer@xxxxxxxxxxx <mailto:leo.studer@xxxxxxxxxxx> > <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx <mailto:xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>> wrote: > > A similar problem as before, is the integer sequence increasing? > > > > this is my solution: > > > > every $v in 1 to (count($sequence)-1) satisfies ($sequence[$v] lt $sequence[$v+1]) > > > > Do you have a better one? > > > > Cheers > > Leo > > > > > > -- > 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? :) > ------------------------------------- > 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 <-list/945646> (by email <>)
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