[xml] xmllint c14n and namespaces / document subsets

["Sebastian Menge" <s menge gmx de>]

Hi

I am unsure if xmllint --c14n works correctly regarding
namespaces. For the following input my hand-made legacy
implementation of W3C Canonicalization pulls down the
namespace decl xmlns:xsi to the <Dcoument>-Tag.


-------------------------------------------

<?xml version="1.0" encoding="UTF-8"?>
<conxml xmlns="urn:conxml:xsd:container.nnn.002" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; 
xsi:schemaLocation="urn:conxml:xsd:container.nnn.002 container.nnn.002.xsd">
  <MsgPain001>
    <Document xmlns="urn:swift:xsd:$pain.001.002.02">
      <pain.001.001.02>
      </pain.001.001.02>
    </Document>
  </MsgPain001>
</conxml>

-------------------------------------------

Expected result:

-------------------------------------------

...
    <Document xmlns="urn:swift:xsd:$pain.001.002.02" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; >
...

-------------------------------------------


But xmllint --c14n does not do this.

Can someone explain who is right according to the spec and
why?

http://www.w3.org/TR/2001/REC-xml-c14n-20010315#Example-DocSubsets

Thanks and Regards, Sebastian.

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