[XSL-LIST Mailing List Archive Home] [By Thread] [By Date]

Re: [xsl] An XPath expression which checks that no two websites have the same username

---

---

On 05/11/2012 12:38, G. Ken Holman wrote:

Did you try:

count(map/*/@to) = count(distinct-values(map/*/@to))

I hope this helps.

. . . . . . . . Ken

Yes I was going to suggest same (this like most of the other solutions,
including the one below, includes the assumption that the from values
are unique (that is, each website is only listed once).

If you are calling the Xpath from XSLT another solution is

map/*/key('to',@to)[2]

with

<xsl:key name="to" match="singletonMap" use="@to"/>

David

________________________________________________________________________
The Numerical Algorithms Group Ltd is a company registered in England
and Wales with company number 1249803. The registered office is:
Wilkinson House, Jordan Hill Road, Oxford OX2 8DR, United Kingdom.

This e-mail has been scanned for all viruses by Star. The service is
powered by MessageLabs. ________________________________________________________________________

---