• From: "David E. Cleary" <davec@p...>
• To: Adam Van Den Hoven <Adam.Hoven@b...>,"XML Development Mailing List (E-mail)" <xml-dev@l...>
• Date: Wed, 23 May 2001 11:38:51 -0400

> -----Original Message-----
> From: Adam Van Den Hoven [mailto:Adam.Hoven@b...]

> I have a tag in my document that is something like
>
> <mediaclip inpoint="12" outpoint='24' />
>
> Is there anyway for me to specify the requirement that the inpoint be
> numerically smaller than the out point.

No. This is called a co-ocurrance constraint and is not supported in Schema
1.0. However, it is a feature that many have requested and we are looking at
adding it in a future version.

One thing you can do to provide signals to a processing application is to
annotate the schema or use a schema adjunct. References to both are below.

XML Schema Extensions -
http://www.sys-con.com/xml/archives/0205/cleary/index.html
Schema Adjunct Framework - http://www.extensibility.com/saf

David Cleary
Progress Software

• References:
  • Quick XML Schema question
    • From: Adam Van Den Hoven <Adam.Hoven@b...>

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