RE: [xsl] Stuck on Name() and variable

["Michael Kay" <michael.h.kay@xxxxxxxxxxxx>]

> I am having trouble getting an attribute match on name to 
> work.  I'm sure I am missing something silly here, so I hope 
> someone will see it and point it out to me!
> 
> I have a process where a mapping node tells me the node I 
> need to read (done through a function call since it uses bit 
> comparison, this works fine). Once I know the target node I 
> need to read (either MapKey or MapMD), I then need to get the 
> attribute from that target node that has the same name as the 
> attribute I am on in the mapping node.  This is where I am 
> stumped.  The correct value is in the variable $AttrName, and 
> a node of that name exists in the target (MapKey or MapMD), 
> but the match, attribute::*[name() = $AttrName], is not doing 
> what I expected it to do.  I get a result of
> '4()(col13)  | ' from the sample output I added to try and 
> figure out what was going on.  So I can see that I have 
> nothing in the $Pos variable.  But I do have an attribute 
> 'col13' in the MapMD node.
> 
> Can I even do a match on the attribute name against a variable?
> 
> <MapMD col0="0" col13="3" col14="2" col15="1" col16="4" 
> col17="5" col18="8" col19="7" col20="6" col21="9" col22="10"></MapMD>
>
Presumably the code below is executed with the <MapMD> element as the
context node? 
> 
> <xsl:attribute name="data">
>   <xsl:variable name="Market" select="node()"/>

node() means child::node(): your MapMD element has no children.

>   <xsl:variable name="Key" select="parent::node()"/>

We haven't been told what the parent of the MapMD element is.

>   <xsl:for-each 
> select="//Map[@schema]/attribute::*[position() &gt; 2]" >

Ouch! The order of attributes is undefined. Selecting all attributes
after the second will give you a random set of attribute nodes back.

You haven't told us anything about the Map element, so it's hard to say
anything more...


>       <xsl:variable name="AttrName" select="name()"/>
>       <xsl:choose>
>             <xsl:when test="bitmask:DeCode(current(), 2) " >

No idea what this extension function does...

>                   <xsl:variable name="Pos" >
>                          <xsl:value-of 
> select="MapKey/@*[name() = $AttrName]" />

Your MapMD element doesn't have a child called MapKey...

I give up. Show us your whole source document, your whole stylesheet,
and explain what your extension function does.

Michael Kay
Software AG
home: Michael.H.Kay@xxxxxxxxxxxx
work: Michael.Kay@xxxxxxxxxxxxxx 


>                   </xsl:variable>
>                   2 - (<xsl:value-of select="$Pos" 
> />)(<xsl:value-of select="$AttrName" />) <xsl:value-of 
> select="$Key/attribute::*[$Pos]" />
>             </xsl:when>
>             <xsl:when test="bitmask:DeCode(current(), 4) " >
>                   <xsl:variable name="Pos" >
>                         <xsl:value-of 
> select="MapMD/attribute::*[name() = $AttrName]" />
>                   </xsl:variable>
>                   4(<xsl:value-of select="$Pos" 
> />)(<xsl:value-of select="$AttrName" />) <xsl:value-of 
> select="$Market/attribute::*[position()
> = $Pos]" />
>             </xsl:when>
>       </xsl:choose>
>       <xsl:if test = "position() != last()"> | </xsl:if>
>    </xsl:for-each>
> </xsl:attribute>
> 
> 
> 
>  XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list
> 
> 


 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list