[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: DTD Notation
- From: David Carlisle <davidc@nag.co.uk>
- To: Jim_Boyse@foremost.com
- Date: Wed, 11 Jul 2001 15:19:54 +0100
> What's the difference between "ItemC*" and "(ItemC)*"?
None.
the () is a sequence or choice so you could have for example
(ItemC|ItemD)* : one or more of C or D
(ItemC,ItemD)* : one or more copies of the sequence C D
but if there's only one thing in the () then they are not doing
anything (in particular they are not doing any harm:-)
David
_____________________________________________________________________
This message has been checked for all known viruses by Star Internet
delivered through the MessageLabs Virus Scanning Service. For further
information visit http://www.star.net.uk/stats.asp or alternatively call
Star Internet for details on the Virus Scanning Service.