[m-rev.] for review: use new stream library in term_to_xml

[Julien Fischer]

On Mon, 30 Oct 2006, Ian MacLarty wrote:

> Estimated hours taken: 5
> Branches: main
>
> Use the new stream typeclass in the term_to_xml standard library module.
> In the process remove some clutter from the interface by obsoleting
> the predicates that do not take a stream argument and remove the
> "_to_stream" suffix from those predicates that do take a stream
> argument.
>
> library/term_to_xml.m:
> 	Use the stream.writer/3 typeclass where appropriate.
>
> 	Make all XML writer predicates require a stream argument
> 	and remove the "_to_stream" suffix from these predicates.
>
> 	Move all deprecated predicates to the end of the interface and
> 	pragma obsolete them.
>
> 	Reword some comments.
>
> 	Remove the behaviour of replacing "]]>" with "]]>" in CDATA
> 	elements, since that behaviour is a bit misleading, because ">"
> 	has no special meaning in CDATA.  Instead just document that "]]>"
> 	is not allowed in CDATA elements.
>
> browser/browse.m:
> tests/hard_coded/write_xml.m:
> tests/hard_coded/xmlable_test.m:
> 	Conform to the above changes.

The NEWS file will also need updating at some point, otherwise that's
fine.

Julien.
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