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

 


Help: OASIS Mailing Lists Help | MarkMail Help

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: DTD Notation



Title: DTD Notation
Dear Jim,
 
Why take the pain to work on an obselete technology. It was not more than a year that DTD had come and everybody was waiting for XML Schema. And this story belongs to year 1999 !
 
But for the question, those two lines are not different. Parantheses are for grouping child elements into groups. The second line (  <!ELEMENT Test2 (ItemA, ItemB?, (ItemC)*)>   ) has no groups!
 
Yours
Alireza Kheyrollahi
System Advance, UK
 
 
----- Original Message -----
From: Boyse, Jim
Sent: Wednesday, July 11, 2001 5:32 PM
Subject: DTD Notation

Can someone help with a DTD notation question, please?

I'm looking at a DTD furnished by an outside source.  In the DTD, most "optional repeating" elements are defined with an asterisk, for example, <!ELEMENT Test1 (ItemA, ItemB?, ItemC*)>.  But a few are defined with additional parentheses, for example, <!ELEMENT Test2 (ItemA, ItemB?, (ItemC)*)>.

What's the difference between "ItemC*" and "(ItemC)*"?

Thanks for any insight into this (subtlety | confusion) you can give.

--Jim
 James A. Boyse
Foremost Insurance Group                        E-Mail: boyse@foremost.com
P.O. Box 2450                                            Phone: 616/956-4150
Grand Rapids, MI  49501-2450                  Fax:      616/956-4450