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ELEMENT declaration in DTD
- To: docbook at lists dot oasis-open dot org
- Subject: DOCBOOK: ELEMENT declaration in DTD
- From: Mike Sangrey <mike at sojurn dot lns dot pa dot us>
- Date: Mon, 05 Jun 2000 15:30:50 -0400
- Reply-To: docbook at lists dot oasis-open dot org
I'm trying to understand DTDs better and am using DocBook to help. Would
someone be so kind and answer the following (probably extremely simple)
question.
Everywhere in the DocBook DTD files one sees lines like:
<!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. :-)
Thanks loudly and with cymbals.
--
Mike Sangrey
mike@sojurn.lns.pa.us
Landisburg, Pa.
There is no 'do' in faith, everywhere present within it is 'done'.