[JDEV] Jabber DTD ...

Scott Cote scote25 at mediaone.net
Sun Jun 3 06:43:52 CDT 2001


Hello. I'm new to the Jabber dev list. I'm enjoying getting my feet wet 
in the Jabber universe. To that end, I have a question regarding some
entries in the protocol DTD files. 

I've see elements that are formed similar to the following:

<!ELEMENT foo (( a? | b? | c?)*)>

What is the difference between that and the following?

<!ELEMENT foo (( a | b | c)*)>

Thanks,

-Scott Cote


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