Subject: Re: [xsl] Wath is the opposite of the union operator? From: António Mota <amsmota@xxxxxxxxx> Date: Thu, 22 Sep 2005 13:02:11 +0100 |
Thanks, that's go directly to my personal archive... On 9/22/05, Michael Kay <mike@xxxxxxxxxxxx> wrote: > > Subject: [xsl] Wath is the opposite of the union operator? > > > > Or puting it in another way, how do i select a group of nodes selected > > by some xpath expression EXCEPT the ones that are selected by another > > xpath expression? > > The operation you are referring to is usually called "set difference". In > XPath 2.0, the operator is spelt "except". There is also a set intersection > operator spelt "intersect". There's no equivalent to these in XSLT 1.0, > though some processors support the EXSLT set:difference() and > set:intersection() functions. You can expensively code > > A except B => > > A[count(.|B) != count(B)] > > A intersect B => > > A[count(.|B) = count(B)] > > Michael Kay > http://www.saxonica.com/
Current Thread |
---|
|
<- Previous | Index | Next -> |
---|---|---|
RE: [xsl] Wath is the opposite of t, Michael Kay | Thread | RE: [xsl] Wath is the opposite of t, JBryant |
RE: [xsl] Removing namespace attrib, Michael Kay | Date | RE: [xsl] Can't use xsl:include hre, Michael Kay |
Month |