At 2007-09-03 10:04 +1000, Deborah Pickett wrote:
Can someone please confirm if what I'm doing here conforms to the XSLT
1.0 spec?  It seems to crash Xalan-J 2.7.0, but Saxon 6 and MSXML 4 do
what I want.  (XSLT 2.0 clearly states that this works, and indeed Saxon
8 does so.)
...
Specifically, what I want to know is:
Is is allowed for namespace-alias to map the null namespace in XSLT 1.0?

Section 7.1.1 shows:



<!-- Category: top-level-element -->
<xsl:namespace-alias
  stylesheet-prefix = prefix | "#default"
  result-prefix = prefix | "#default" />

Since only the default namespace can be the null namespace, this 
looks pretty explicit to me that provision is made for referencing 
the null namespace.  The text reads "the result-prefix attribute 
specifies the corresponding namespace URI that will appear in the 
result tree".  Granted there is no wording explicitly about the null 
namespace, but I would think any conformance would not preclude it 
being supported since the specification doesn't explicitly constrain 
the URI for the default namespace.



And, anyway, Saxon is so very (very!) rarely wrong.  I've relied on 
6.5.5 for a lot of production XSLT 1.0 work and always use it in my 
classroom, and the latest Saxon for the XSLT 2.0 exercises.



I hope this helps.



. . . . . . . . . . . Ken




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