Re: [xsl] Problem with iterating through a sequence of integers

[ac <ac@xxxxxxxxxxxxx>]

Hi,

A few questions:

1.
Would it not be preferable to invert the choose as in

<xsl:for-each select="(  . . .)">
       <xsl:choose>
           <xsl:when test=". instance of xs:anyAtomicType">
               <xsl:value-of select="."/>
           </xsl:when>
           <xsl:otherwise>
               <xsl:apply-templates select="$foo,." />
           </xsl:otherwise>
       </xsl:choose>
   </xsl:for-each>

especially since node() will also return text nodes that should probably 
be atomized ?

2.
Also, wouldn't castable as be preferable to instance of, in this case ?
If so, might one want to separate strings, boolean, numbers and 
integers, as in

...
<xsl:choose>
 <xsl:when test=". instance of xs:integer"> ... </when>
 <xsl:when test=". instance of number()"> ... </when>
 <xsl:when test=". instance of xs:boolean"> ... </when>
 <xsl:when test=". castable as xs:integer"> ... </when>
 <xsl:when test=". castable as number()"> ... </when>
 <xsl:when test=". castable as xs:boolean"> ... </when>
 <xsl:when test=". castable as xs:string"> ... </when>
 <xsl:otherwise><xsl:apply-templates select="$foo,." /></xsl:otherwise>
</xsl:choose>

?

3.
What would be the best way to do this ?


4.
As for the use cases, aren't there more than might seem at first, especially where dynamic evaluation (ex: saxon:eval()) is used?


Thanks.

Cheers,
ac







...

David Carlisle a C)crit :
> a safer way is to use a global param, this prevents a static type error
> (as the system can not know that you will not pass in a node) but if you
> never do pass in a value then teh run time behaviour is as you wish:
>
> <xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
> <xsl:param name="foo" select="()"/>
> <xsl:template name="x">
> <xsl:for-each select="(1, 2, 3)">
>         <xsl:choose>
>             <xsl:when test=". instance of node()">
>                 <xsl:apply-templates select="$foo,." />
>             </xsl:when>
>             <xsl:otherwise>
>                 <xsl:value-of select="."/>
>             </xsl:otherwise>
>         </xsl:choose>
>     </xsl:for-each>
> </xsl:template>
> </xsl:stylesheet>
>
>
>
> $ saxon9 -it x stst.xsl
> <?xml version="1.0" encoding="UTF-8"?>123
>
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