OASIS Mailing List ArchivesView the OASIS mailing list archive below
or browse/search using MarkMail.


Help: OASIS Mailing Lists Help | MarkMail Help

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

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

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

News | XML in Industry | Calendar | XML Registry
Marketplace | Resources | MyXML.org | Sponsors | Privacy Statement

Copyright 1993-2007 XML.org. This site is hosted by OASIS