Re: [xsl] XSLT 2.0 compability issue occured in topicmerge.XSL in DITA 1.5.1

[Michael Kay <mike@xxxxxxxxxxxx>]

On 19/06/2012 10:49, team wise wrote:
> Hi Michael,
>
> Further to my last message, I just run another version of the
> problematic XSLT 1.0 stylesheet which I reported to the list and got
> this error:
>
>    [xslt] D:\InfoShare\AppSOMC\Utilities\DITA-OT\SEMC_Infoshare\xsl\topicmerge.xsl:47:31:
> Fatal Error! Variable name is not a valid QName: xml:lang

XSLT 2.0 defines a number of namespaces as reserved, and you are not 
allowed to declare variables / functions / templates etc in these 
namespaces. XSLT 1.0 did not have any explicit rules on this, but the 
general theory with namespaces is that you should not put things in a 
namespace that you do not own; XSLT 2.0 was formalizing this piece of 
etiquette.

It's a slightly unfortunate error message.

Michael Kay
Saxonica