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Re: [xsl] document() function and error-handling

2008-01-03 10:07:27

I will assume this is in a web environment. You could configure your web
app/server to return a well-formed error page when you get a 404 (and
disregard it if you want).

best,
-Rob


On Thu, 2008-01-03 at 10:49 -0600, Scott Trenda wrote:
Quick question, might be specific to the MSXML XSLT processor.

I'm trying to reference two different files passed in as parameters to a 
transformation using the document() function. If the files are blank or valid 
URIs (the URI handling is correct), the transformation works as expected, but 
if the URI points to a non-existant file, MSXML errors out with code 
0x800c0006: "The system cannot locate the object specified." I'm developing a 
central framework for several different applications, and I don't know if the 
application is actually going to create the file I'm trying to reference 
here. If it doesn't exist, I don't care, I just want to use it in the case 
that it does exist.

I've played around with some different scenarios in the stylesheet, and the 
error occurs any time I try to access the variable that contains the result 
of the document() function, even if I only want to check if it's non-empty. 
Is there any more graceful way (for MSXML, in particular) to handle the case 
where the URI passed to document() doesn't exist?

I've included the stylesheet I'm using at the bottom, just in case it helps.

~ Scott



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