Re: Unexpected Ambiguous Model in XSD Schema

Cart

XML Editor - Download a Free Trial >

See What's New >

Buy Now >

[Home] [By Thread] [By Date] [Recent Entries]

From: "Christopher R. Maden" <crism@m...>
To: xml-dev@l...
Date: Fri, 22 Dec 2017 12:18:54 -0500

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.

Follow-Ups:
- Re: Unexpected Ambiguous Model in XSD Schema
  - From: Eliot Kimber <ekimber@c...>

References:
- Unexpected Ambiguous Model in XSD Schema
  - From: Eliot Kimber <ekimber@c...>

[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index]

XML Editor - Download a 15 Day Free Trial Now >

See What's New in Stylus Studio >

Buy Stylus Studio - XML Editor - Now >