Re: [XSL] Implicit Predicate Casting

But there is still something that puzzles me a lot, and I still don't find the part that specifies the behaviour described below.

Let's consider :

XML input :
===========================
<?xml version="1.0" encoding="UTF-8"?>
<test>
   <element>first</element>
   <element>second</element>
   <element>third</element>
 <empty/>
</test>

===========================

XSL file :
===========================
...
   <xsl:variable name="pos">2</xsl:variable>
       <p>(2) element[$pos]=<xsl:value-of select="element[$pos]"/></p>
       <p>(3) element['2']=<xsl:value-of select="element['2']"/></p>
...
Ouput is (using Saxon 8.9)
===========================
...
(2) element[$pos]=first second third

(3) element['2']=first second third
...
On (2) and (3), the predicate expression (inside []) is a string (3) or
a variable (2) containing a string (or is it considered as a nodeset
containing a single text node under the root element of the variable ?).
It's obviously not trying to cast to a number because that gives a
different result as (4) where I cast it to a number.
...
*So my question is* : what is happening in (2) and (3) at XPath level to
get this result ?

And also, why is the result different if the version of XSL is set 1.0.
It would then give only
      <p>(2) element[$pos]=first</p>
      <p>(3) element['2']=first</p>

And by the way, I'm very newbie with xsl:fallback and stuff like that,
is there a way I can run this stylesheet with Internet Explorer without
having to comment out the last two  lines of the template, because I.E.
complains about the attribute "as" of  xsl:variable which, indeed, does
not exist in 1.0 ?
(so that's the third question !)

... or maybe it's a bug of I.E. that should not complain with this
attribute "as" and just ignore it, as Firefox does... or is this
behaviour "implementation dependant" ?

(Of course, when I tried on browsers, I changed version of XSL to 1.0)

  "It is an error for an element from the XSLT namespace to have
   attributes with expanded-names that have null namespace URIs
   (i.e. attributes with unprefixed names) other than attributes
   defined for the element in this document."

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