Re: [xsl] invalid xpath?

Trevor Nicholls wrote:
> The following template errors in xsltproc and XMLSpy but appears to function
> correctly when run by Saxon.
>
> [...snip...]
>
>    </xsl:when>
>    <xsl:when test="not(preceding-sibling::*)[starts-with($Arg,'&#x0a;')]">
>     <xsl:call-template name="WS">
>
> [...snip...]
>
> The xsltproc error is "XPath error: Invalid type"
> XMLSpy says "Error in XPath expression, Not a node set"
>   
Both xsltproc and XMLSpy are correct: the expression 
not(preceding-sibling::*) does not return a node set but a boolean and 
the [...] expression behind it can only be executed on a boolean.
Perhaps when you run it with Saxon you run it as XSLT 2.0 which allows 
for a predicate expression on a boolean.
> I thought the test expressions are valid v1.0 XSL. Is this not so?
Yes, they are valid.

Cheers,
-- Abel --

PS: sending the line number in your post would make it a bit easier to 
find what's wrong. Now we have to go through all lines with an XPath.
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