[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message]

Re: Representing IP addresses in XML Schema

  • From: "Roger L. Costello" <costello@m...>
  • To: xml-dev@i...
  • Date: Tue, 21 Dec 1999 06:45:19 -0500

xml ip address namespace schema
Ray Waldin wrote:
> 
> "Roger L. Costello" wrote:
> > ...
> > <datatype name="IP" source="string">
> >    <pattern value="\d{3}.\d{3}.\d{3}.\d{3}"/>
> > </datatype>
> >
> > However, this is not satisfactory - it allows each field in the IP to
> > have values from 000-999.  I want to restrict the possible values to:
> > [0-255].[0-255].[0-255].[0-255]
> 
> You can avoid the problem by storing the IP as a hex address, as in:
> 
> ff.ff.ff.ff
> 
> <pattern
> value="[0-9a-f][0-9a-f].[0-9a-f][0-9a-f].[0-9a-f][0-9a-f].[0-9a-f][0-9a-f]"/>
> 
> -Ray

Thanks Ray.  An interesting choice of words - "You can avoid the
'problem' ...".  I think that it is a "problem" if such a common, simple
datatype cannot be expressed directly, and one is forced to resort to
indirect means of expressing what is desired.  Yes?  /Roger


xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i...
Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN 981-02-3594-1
To unsubscribe, mailto:majordomo@i... the following message;
unsubscribe xml-dev
To subscribe to the digests, mailto:majordomo@i... the following message;
subscribe xml-dev-digest
List coordinator, Henry Rzepa (mailto:rzepa@i...)



PURCHASE STYLUS STUDIO ONLINE TODAY!

Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced!

Buy Stylus Studio Now

Download The World's Best XML IDE!

Accelerate XML development with our award-winning XML IDE - Download a free trial today!

Don't miss another message! Subscribe to this list today.
Email
First Name
Last Name
Company
Subscribe in XML format
RSS 2.0
Atom 0.3
 

Stylus Studio has published XML-DEV in RSS and ATOM formats, enabling users to easily subcribe to the list from their preferred news reader application.


Stylus Studio Sponsored Links are added links designed to provide related and additional information to the visitors of this website. they were not included by the author in the initial post. To view the content without the Sponsor Links please click here.

Site Map | Privacy Policy | Terms of Use | Trademarks
Free Stylus Studio XML Training:
W3C Member
Stylus Studio® and DataDirect XQuery ™are products from DataDirect Technologies, is a registered trademark of Progress Software Corporation, in the U.S. and other countries. © 2004-2013 All Rights Reserved.