Re: Recursive replacement
Martin Probst <[email protected]> Mon, 30 Jan 2006 16:33:13 +0100
| Newsgroups | gmane.comp.web.query-languages |
|---|---|
| Organization | X-Hive Corporation |
| Message-ID | <[email protected]> |
> > 2) for $p in fn:doc("test.xml")//a
> > do replace {$p}
> > with element "new-node" {$p/*}
>
> Hmm I'll leave that one for a WG member to answer.., I think that you
> should get get an error from
> http://www.w3.org/TR/xqupdate/#id-extensions-to-existing
>
> All the pending update lists generated by the previous step are merged
> by successive invocations of the upd:mergeUpdates operation. If the
> upd:mergeUpdates operation signals an incompatibility, a dynamic error
> is raised [err:TBD].
>
> But I don't actually see that in the table in
> http://www.w3.org/TR/xqupdate/#id-compatibility
> which has side condition "Not compatible if t1 is t2." in some cases
> looks to me as if it should be t1 is an ancestor to t2
Well, the constructor "element new-node {$p/*}" copies the contents of
the node $p, so the outermost <a/> node is replaced with
<new-node><b><a/></b></new-node>.
There is also a rename operation for exactly this (changing a node name
without changing it's identity).
Martin