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Re: Including other DTDs

• To: "Remco de Boer" <deboer@z...>
• Subject: Re: Including other DTDs
• From: ht@c... (Henry S. Thompson)
• Date: 21 Jan 2003 17:50:58 +0000
• Cc: <xml-dev@l...>
• In-reply-to: <03bb01c2c149$67bdcaa0$6a01a8c0@remcolaptop>
• References: <03bb01c2c149$67bdcaa0$6a01a8c0@remcolaptop>
• Sender: ht@i...
• User-agent: Gnus/5.0808 (Gnus v5.8.8) XEmacs/21.4 (Portable Code)

"Remco de Boer" <deboer@z...> writes:

> Hi all,
> 
> I'm currently investigating the MatML DTD (v2.0) that can be found at http://matml.nist.gov/ 
> 
> This DTD specifies the use of two other DTDs; the Virtual Hyperglossary (VHG) and Scalable Vector Graphics (SVG) DTD. The syntax it uses to include these DTDs is as follows:
> 
> <!ENTITY % VHG SYSTEM "http://www.vhg.org.uk/dtd/vhgdtd.html">
> <!ELEMENT Terms (%VHG;)>
> <!ATTLIST Terms %xmlns;>

That's completely bogus -- you can't shove an html document (which is
indeed what's at the end of that URL) in to an element declaration.
If the reference was all on its own on a line, _and_ the URL was
corrected, then it would be fine:

<!ENTITY % VHG SYSTEM "http://www.vhg.org.uk/dtd/vhg.dtd">
%VHG;

That's the proper way to compose DTD documents, _if_ they are designed
for it.

ht
-- 
  Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
          W3C Fellow 1999--2002, part-time member of W3C Team
     2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440
	    Fax: (44) 131 650-4587, e-mail: ht@c...
		     URL: http://www.ltg.ed.ac.uk/~ht/
 [mail really from me _always_ has this .sig -- mail without it is forged spam]

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