Thanks all for your fast responses.
. . . . . . . . . . . . . . . . . . . . . . . . . .
Ing. Patrick Szabo
Developer
LexisNexis
A-1030 Wien, Marxergasse 25
mailto:Patrick(_dot_)Szabo(_at_)lexisnexis(_dot_)at
Tel.: +43 1 53452 1514
Fax.: +43 1 534 52 146
. . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . .
Ing. Patrick Szabo
Developer
LexisNexis
A-1030 Wien, Marxergasse 25
mailto:Patrick(_dot_)Szabo(_at_)lexisnexis(_dot_)at
Tel.: +43 1 53452 1514
Fax.: +43 1 534 52 146
. . . . . . . . . . . . . . . . . . . . . . . . . .
-----Ursprüngliche Nachricht-----
Von: Michael Kay [mailto:mike(_at_)saxonica(_dot_)com]
Gesendet: Mittwoch, 26. März 2014 14:13
An: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Betreff: Re: [xsl] comparing attributes if missing at times
On 26 Mar 2014, at 12:41, Szabo, Patrick (LNG-VIE)
<patrick(_dot_)szabo(_at_)lexisnexis(_dot_)at> wrote:
:
<xsl:for-each-group select="elem" group-starting-with="elem[@x !=
preceding-sibling::elem[1]/@x]">
Like all the other comparison operators, "!=" is implicitly existential. That
is, A!=B means "some a in A, b in B satisfies a!=b".
This is handy for "=", because you can say author="Smith" and it gives a
reasonable answer if there is more than one author.
It's very rarely useful for "!=", which is why most people advise against using
it. Use not(A = B) instead,
Michael Kay
Saxonica
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