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Re: [xml-dev] Unexpected Ambiguous Model in XSD Schema

On 12/22/2017 12:12 PM, Eliot Kimber wrote:
If I was coding this as a DTD it would be:

<!ELEMENT figure
    ((figcaption, (img)+) |
     ((img)+, figcaption) |
     ((img)+))

Which is definitely not ambiguous.
I disagree. An initial img can match either the second or third img token in the content model, thus ambiguous (in the slightly weird SGML sense of the term).

In a DTD, I’d use

<!ELEMENT figure
((figcaption, img+) |
(img+, figcaption?)) >

~Chris
--
Chris Maden, text nerd
<URL: http://crism.maden.org/ >
Emperor Norton had the right idea.


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