Re: [xsl] Output common IDs

[Michael Kay <mike@xxxxxxxxxxxx>]

I think (perhaps) you've made the common mistake of imagining that 
contains() tests whether a particular sequence contains a particular 
value. In fact, contains() does something quite different - it tests 
whether a string contains a substring.

To test whether a sequence $S contains the value $V, just use the "=" 
operator - ($S = $V).

In fact this problem seems to be much simpler than you are making it: I 
think it's just

  <xsl:template match="/AllIds">
    <xsl:value-of select="tokenize(., '\s+')[. = tokenize(doc('PageIDs.xml')/id, '\s+')]"/>
  </xsl:template>


Michael Kay
Saxonica


On 26/01/2011 06:11, Suresh wrote:
> Hi,
>
> I have a xml file (PageIDs.xml) which contains several IDs. I have
> another file which contains ID and URI separated by a tab(AllIDs.xml)
>
> The question is, For each tokenized ID contained in PageIDs.xml file I
> want to test all IDs in AllIDs.xml and if ID test matches output
> matching line as text. This is simple for members in the list, I tried
> but I could not solve this using XSLT 2.0
>
>   PageIDs.xml
> -------------------
> <id>
> BD6131A5-527C-11DF-A29F-00144F3EA4A4
> DCA7D4CA-312D-11DF-A385-00144F3EA4A4
> DD762167-312D-11DF-A385-00144F3EA4A4
> DDB79742-312D-11DF-A385-00144F3EA4A4
> 3D74A11A-839A-11DF-82F6-00144F3EA4A4
> ...
> </id>
>
> AllIDs.xml
> ---------------
> <AllIds>
> DCA7D4CA-312D-11DF-A385-00144F3EA4A4	/accounts-overview/dkadoemfew
> 8ED29EEA-6460-11DF-8508-00144F3EA4A4	redirect.go?target=payxsxs
> EC2152EB-4593-11DF-BCB6-00144F3EA4A4	/accounts-overview/redirect.go?target=feljfweij
> 997A1170-474A-11DF-BCB6-00144F3EA4A4	redirect.go?target=woqiepoqie
> DD4AF2B0-312D-11DF-A385-00144F3EA4A4	/accounts-overview/e32i2je2
> BD6131A5-527C-11DF-A29F-00144F3EA4A4	/contactus/about-contact
> ...
> </AllIds>
>
> This is the XSLT I've written...
>
> <?xml version="1.0" encoding="UTF-8"?>
> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
>      xmlns:xs="http://www.w3.org/2001/XMLSchema";
> exclude-result-prefixes="xs" version="2.0">
>      <xsl:output method="text"/>
>      <xsl:variable name="FilteredPageIds" select="doc('pageIDs.xml')/id"/>
>
>      <xsl:template match="/AllIds">
>          <xsl:variable name="AllListedIds" select="tokenize(text(),'\t+')"/>
>          <xsl:for-each select="$AllListedIds">
>              <xsl:for-each select="tokenize($FilteredPageIds,'\n')">
>                  <xsl:variable name="CurrentPageId"
> select="normalize-space(current())"/>
>                  <xsl:if test="contains($CurrentPageId, $AllListedIds)">
>                      <xsl:value-of select="$AllListedIds"/>
>                  </xsl:if>
>              </xsl:for-each>
>          </xsl:for-each>
>      </xsl:template>
> </xsl:stylesheet>
>
> This fails at contains because the item is a collection and I am not
> sure how to handle them.
>
> Expected output for IDs matching in PageIDs.xml,
>
> BD6131A5-527C-11DF-A29F-00144F3EA4A4	/contactus/about-contact
>
> Thanks.
> --
> Suresh