Re: [xslt] key() in match pattern of xsl:key

["Joel E. Denny" <jdenny ces clemson edu>]

On Thu, 8 Dec 2005, Daniel Veillard wrote:

>   oh, okay, sorry for the misunderstanding :-)

No problem.  I was actually a little shocked to find how my words sounded 
upon a later reading.

The EXSLT idea isn't working out well. For a large test case, calling one 
key from the match pattern of another key allows my stylesheet to run in 
about 1 sec.  After converting the called key to an EXSLT user function, 
it takes 25 secs.  I should've realized it would be much worse given the 
large data set.

As you might imagine, I'm losing my drive for purity.  I'm hoping that 
XSLT 2.0 will allow keys to reference keys, but I haven't managed to 
decipher that spec well enough yet to be sure.  Moreover, there are many 
aspects of 1.0 I haven't even explored yet, so its hard for me to know 
whether it's reasonable to allow this capability in general.  All I'm sure 
of is that libxslt handles it fine for my specific test cases.

What do you think?  If you believe it's a reasonable pursuit to make this 
a formal feature of libxslt, I'll do what I can to write regression tests, 
document the idea, and whatever else is required.  Just let me know.

Thanks.

Joel