Limitations of attribute value templates

Can someone explain why the XSLT draft does not support the use of attribute
value templates for these types of attributes:

(1) attributes whose value is an expression or pattern
(2) attributes that refer to named XSLT objects
(3) attributes of top-level elements

It seems like removing these restrictions, especially (1) and (2), would
make coding XSLT much easier.  I and my colleagues are spending a lot of
time trying to work around them.

I'm sure that these restrictions were not arrived at arbitrarily, but I'd
feel better if I just understood why they are needed.

Samuel C. Yang
syang@xxxxxxxxxxxxxxxxxx <mailto:syang@xxxxxxxxxxxxxxxxxx>


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