XSLT Help

markf909

Hi all, im trying to formulate a query that is easy to describe but my attempts have not been working so far

The XML structure looks roughly like

<Entry>
    <Server>
        <UA>Some value here</UA>
    </Server>
    <Capability>
        <NewCapability name="foo" value="bar"/>
        <MissingCapability name="X">240</MissingCapability>
    <Capability>
</Entry>

I have no control over this so I cannot re-design the XML layout.

So what I need to do is print out the value contained in UA iff the name and value of NewCapability match some criteria.

The first problem I am having is that my <xsl:if> does not seem to be matching the attributes.

The second problem I am having is that every UA value and every MissingCapability value are printed out, I cannot seem to ignore them even if I explicitly match them.

My XSL looks roughly like this:

<xsl:template match="Server">
    </xsl:apply-templates/>
</xsl:template>

<xsl:template match="UA">
    <xsl:if test="../Capability/NewCapability[@name]='foo'">
        <xsl:if test="../Capability/NewCapability[@value]='bar'">
            <xsl:value-of select="."/>
            <xsl:apply-templates/>
        </xsl:if>
    </xsl:if>
</xsl:template>

<xsl:template match="MissingCapability">
    <!-- This keeps printing out the value, how do I ignore -->
    <xsl:apply-templates/>
</xsl:template>

I've spent a lot of hours over the past two days without making much progress, I could hack a solution together via some string matching in Python but i'd prefer to stick to an XML-based solution.

sailorfoley

match the attributes with XPath using ../elementname/@attributename

so try : ../Capability/NewCapability/@name='foo'

markf909

sailorfoley wrote:

match the attributes with XPath using ../elementname/@attributename

so try : ../Capability/NewCapability/@name='foo'

Yup that did it, the test clause just needed @name instead of [@name]

Thanks

sailorfoley

No problem. the square brackets you were using are used when you want to do a conditional xpath

so..... e.g. /bookstore/book[price>35]/title

This would select all the title nodes with a price node value higher than 35.

I always find w3schools good for tutorials or if you need to check something quickly.

http://www.w3schools.com/xpath/default.asp

Farouk.Bulsara

markf909 wrote:

The second problem I am having is that every UA value and every MissingCapability value are printed out, I cannot seem to ignore them even if I explicitly match them.

Mark,

What does the "full" file look like? Is it something like:

<Entry>

<Server>
<UA>Some value here</UA>
</Server>
<Capability>
<NewCapability name="foo" value="bar"/>
<MissingCapability name="X">240</MissingCapability>
</Capability>

<Server>
<UA>Firefox</UA>
</Server>
<Capability>
<NewCapability name="foo" value="barbarbar"/>
<MissingCapability name="X">42</MissingCapability>
</Capability>

<Server>
<UA>Netscape</UA>
</Server>
<Capability>
<NewCapability name="foo" value="notfoo"/>
<MissingCapability name="X">999</MissingCapability>
</Capability>

</Entry>

Under what circumstances do you NOT want the UA and MissingCapability values printed out?

Fred

markf909

Under what circumstances do you NOT want the UA and MissingCapability values printed out?

I have a large file with a lot of different XSL queries, sometimes I just want to ignore the Missing Capabilites.

I have that problem sorted now, I simply match any MissingCapabilities node and then just ignore it by not applying templates. Seems to work fine.

When I posted this problem it was my first foray back into XSL after 4 years, I seem to be in control of things again