Re: [xsl] <xsl:choose>'ing from different forms of a tag

[Antonio Fiol <fiol at w3ping dot com>]

xml@kinowin.zeddiclan.com wrote:

> Hi,
>
> I have an XSD file that uses a xsd:union to allow the tag <term> to have
> one of three different sequences.  In particular, <term> can be of any
> of the following:
>
> (1)     <term>
>                <term>...</term>
>                <_literal_>*</_literal_>
>                <factor>...</factor>
>        </term>
>
>
> (2)     <term>
>                <term>...</term>
>                <_literal_>/</_literal>
>                <factor>...</factor>
>        </term>
>
>
> (3)     <term>
>                <factor>...</factor>
>        </term>
>
>
>
> My question is: when I write a templat for <term>, can I match against
> the different sequences?  For example, I would like to write a
> transform like:
>
>        <xsl:template match="term">
>        <xsl:choose>
>
>                <xsl:when test="[ somehow test for form (1) ]">
>                        (do stuff)
>                </xsl:when>
>
>
>                <xsl:when test="[ somehow test for form (2) ]">
>                        (do different stuff)
>                </xsl:when>
>
>
>                <xsl:when test="[ somehow test for form (3) ]">
>                        (do completely different stuff)
>                </xsl:when>
>
>
>                <xsl:otherwise>
>                        (never get here, no other forms are allowed)
>                </xsl:otherwise>
>
>        </xsl:choose>
>        </xsl:template>
>
> I don't know what to put in the test="..." areas though.  Any ideas?
>
> Thanks,
>
>        Jared
>
>
>
> XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list
>
>
> .
>
>  
You can use test=" name(*[1])='term' " style conditions
Also possible (I think) test=" *[1]/self::term "
None are tested.

However, if there is no common treatment to all three forms, that you 
could factor outside the xsl:choose, I would suggest you to use three 
different templates. Something like:

<xsl:template match=" term[*[1]/self::term and *[2]/self::literal = '*' ] ">

Antonio Fiol


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