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   Re: XML & SGML

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  • From: Lars Marius Garshol <larsga@step.de>
  • To: xml-dev@ic.ac.uk
  • Date: Wed, 06 May 1998 21:36:37 +0200

W. Eliot Kimber wrote:
> The inability to use parameter entities inside of declarations is the
> problem--unless I've misunderstood the restriction.

You have. (Thankfully. Reassuring to see that you can be wrong about
something. :)

<!ELEMENT foo (%bar;)>

is entirely valid in the external subset, but not in the internal. This
is the relevant part of the spec (from section 2.8):

"Well-Formedness Constraint: PEs in Internal Subset

          In the internal DTD subset, parameter-entity references can 
          occur only where markup declarations can occur, not within 
          markup declarations. (This does not apply to references that 
          occur in external parameter entities or to the external 

I still haven't found a sensible way to implement this in the external
subsets, though. :-(

--Lars M.

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