XPath lower-case()

Hello,
I was testing some xpath expressions and could not get it to
work
using the lower-case() function. But I noticed that some
functions
work correctly, like concat().

lower-case() is currently implemented?
If it is, can anyone provide an example of its use?
If not, what can be done (or can I do), to have it
implemented?

Thanks
Thiago Silva
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Thiago Silva wrote:

> lower-case() is currently implemented?

No. The lower-case() function is part of XPath 2.0, but
libxml only
implements XPath 1.0.
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