The Peace Process: DOM and namespaces...

Bill la Forge b.laforge at
Fri Feb 12 16:22:49 GMT 1999

From: John Cowan <cowan at>
>> I'm writing a program that needs to use the DOM to process documents that use namespaces.
>> So I wrap John Cowan's inheritance filter
>Namespace filter, that is.  The inheritance filter (as Bill knows
>but some may not) processes inheritable attributes like xml:lang
>and xml:space.

Sorry John, but I was actually thinking of a cross between the two,
where all xmlns attributes were inherited.

The advantages here are:
1. You can slip namespaces right past anything that isn't namespace aware;
2. You can manipulate the DOM without worries about scope;
3. You can strip the inherited values off on the output side, and have something
    reasonably readable and predictable, with all the original xmlns attributes
    preserved. (The names chosen may actually be meaningful to the author, mm?)

When you create new elements in such a DOM, the APPLICATION does need to
be aware of which namespace it is using, and supply the appropriate xmlns attribute.
That doesn't seem to be too much to ask.


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