[Xsltforms-support] inserting without redundancy?

[Grégoire C. <gco...@gm...>]

Hi,

I have written a form where the user fills an instance with the "insert"
element. Now, I want to abort the insertion process if the inserted node
already exists in the destination instance. Is it possible?

Another possibility might be to add a test to ensure unicity of values in an
instance? I don't know if this is possible neither. So any idea is welcome.

Thanks,
Grégoire