Re: How to validate the field length in DTD

["John E. Simpson" <simpson@xxxxxxxxxxx>]

At 02:24 PM 01/24/2000 -0500, Con_Shravan Gunda wrote:
> How can i validate the field length in DTD ??
>
> <phonenumber>1234567890</phonenumber>
>
> How can i write a DTD which validates the field length of phonenumber should
> be 10.

The answer to this is the same as the answer to your question of last week 
(about how to validate a numeric datatype): in short, you can't using a 
plain old DTD. If each digit were its own element, you might be able to do 
something like:
        <!ELEMENT phonenum (digit,digit,digit,digit,digit,
                digit,digit,digit,digit,digit) >
which limits it to 10 "digit" child elements. But then (aside from the fact 
that it will be horrible to create documents like this, at least manually) 
you're stuck defining *them*, the digit elements themselve -- the best you 
can do is:
        <!ELEMENT digit (#PCDATA) >
which doesn't limit the length at all.

Also like your question of last week, this is very much off-topic for 
XSL-List. You need to be asking these questions on XML-L. To subscribe to 
that list, or access its archives, go to:
        http://listserv.heanet.ie/xml-l.html

===================================================================
John E. Simpson            |  I spilled spot remover on my dog.
simpson@xxxxxxxxxxx        |  He's gone now.
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