p:add-xml-base-attributes

Jeni proposes[1]:

This doesn't help when I don't know what the base URI of the document
is in the first place. I think we should have a step that annotates a
document with suitable xml:base attributes:

<p:declare-step type="p:add-xml-base-attributes">
  <p:input port="source" />
  <p:output port="result" />
  <p:option name="all-elements" value="no" />
</p:declare-step>

The result of this step is a document that's identical to the source
document, except that it adds xml:base attributes to elements. If
'all-elements' is 'no' (the default), it only adds xml:base to the
document element and to every element whose base URI is different from
that of its parent. If 'all-elements' is 'yes', it adds xml:base to
all the elements in the document.

                                        Be seeing you,
                                          norm

[1] http://lists.w3.org/Archives/Public/public-xml-processing-model-wg/2007Jun/0118.html

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