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- From: Rick JELLIFFE <ricko@geotempo.com>
- Date: Wed, 02 Aug 2000 02:21:04 +0800
Kay Michael wrote:
>
> > Does anyone know if (and how) I can have one element contain itself?
>
> No, you can't, but you can have one element contain another element of the
> same name, e.g.
> <section><section></section></section>
In SGML you could, potentially. (I hope ISO 8879 said this is an error
:-)
Given the declaration
<!ATTLIST x
id ID #IMPLIED
refid IDREF #CONREF >
you could attempt
<x id="x1" refid="x1" >
where #CONREF means "if this attribute is used, the contents of the
element being pointed to can be taken as the contents of this element
(which cannot have any contents if #CONREF is specified)". That allowed
SGML to specify many-to-one relationships on "children", but it wasn't
used much because most SGML was stream-processed.
Rick Jelliffe
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