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From: Stefan Seefeld (seefeld_at_[hidden])
Date: 2005-11-09 00:21:56

Douglas Gregor wrote:

> Have you perchance looked at Xpressive? The static constructs in it
> allow static checking of regexes (because they are built with C++
> operators), whereas the dynamic (from-string) constructs allow one
> more flexibility. The same can occur with XPath: using some C++
> operator overloading, we can have statically-checked XPath
> expressions that also provide more accurate type information (e.g.,
> an element-set instead of a node-set). Of course, we'll always need
> to be able to fall back to strings as XPath expressions, which can
> only be checked at run-time.

I totally agree. And yes, it would be nice if the xpath sub-type could
be used to narrow down the result type, i.e. attribute_set instead of
node_set, etc.


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