Re: [xsl] Use document() function to get a reference to the input doc

["G. Ken Holman" <gkholman@xxxxxxxxxxxxxxxxxxxx>]

At 2006-07-17 17:54 -0400, Wendell Piez wrote:
> A variable holding the input document is usually simply
>
> <xsl:variable name="main-doc" select="/" />
>
> Perhaps you're over-remembering? No document() function needed.

Now that this has brought my attention to what
Charles *really* wanted and not what I thought I
read, there is a nuance that was recently brought to my attention.

I'm told that generate-id(/) is not equal to
generate-id(document("",/)) ... when I thought it
was obvious that it should be.

So, in my XSLStyle stylesheet, when tracing
through import statements trying to detect
recursive references, I was unable to use the
simple test above that I've written in prose.

I ended up having to store the input document's document element as follows:

  <xsl:variable name="xs:input-document-element" select="document('',/)/*"/>

And only then would my generate-id() give me what
I needed to detect an incorrect use of xsl:import
... without doing it that way, just using generate-id(/*), wouldn't work.

When I brought this issue up off-list, this is the response I received:

> > I'm getting two different generate-id()
> > values for the same document's root node.
>
> That's because they aren't the same document... they are two different
> documents loaded from the same URL.
>
> That can't happen if they were both loaded using the document() function -
> but in this case, one was and one wasn't, so there are no guarantees.

So my problem went away when I used
"document('',/)".  I'm taking the above answer I
was given on faith:  I'm not sure how the same
URL produces two different documents in XSLT ...
I've always thought it would be the same document
if the same URL and generate-id() would produce the same value.

Sorry, Charles, to have misunderstood your original post.

. . . . . . . . Ken

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