[xquery-talk] Top N Most Common Mistakes

Smith, Donald T. DonaldT.Smith at aa.com
Thu Aug 2 10:40:31 PDT 2007

> You still get the people who imagine that because variables are
> with a "$" sign they must work by textual substitution.

I don't have the CS background to quite understand how variables work
via textual substitution and how they work some other way. I do know --
from reading Michael Kay's books -- that XSLT is a functional language
and that variables in XSLT can't be updated. I do understand quite well
template-based processing and recursive templates.

If it's not too much of a digression into CS theory, could someone
explain this point?



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