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Subject: DOCBOOK: Re: ELEMENT declaration in DTD
Mike Sangrey <mike@sojurn.lns.pa.us> writes: > <!ELEMENT foobar - - ((some|stuff)*)> > or > <!ELEMENT foobar - O ((some|stuff)*)> > > What are the '-' and 'O' doing in there? A case of virtual beer if you > include an XML Spec. section citation. :-) You'll have to look at the "SGML Spec." ;-) The 'O' means "optional"; optional tags are not required: <para> First paragraph <para> Second paragraph The end tag is implied by context. In XML you'll have to close every tag explicitly; therefore no '-' and 'O' at all. -- work : ke@suse.de | : http://www.suse.de/~ke/ | ------ ,__o home : ke@gnu.franken.de | ------ _-\_<, : http://www.franken.de/users/gnu/ke/ | ------ (*)/'(*)
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