a simpler document type definition language?

Jurg Wullschleger Jurg.Wullschleger at mb.luth.se
Tue Dec 14 08:31:54 GMT 1999


> > the simplest form i can think of would look something like this:
> (examples
> > in DTD syntax)
> > there are only 4 types of elements:
> > 
> > - empty elements
> > <!ELEMENT name1 EMTPY >
> > 
> > - elements that contain data
> > 
> > <!ELEMENT name2 (#PCDATA) >
> > 
> > - list elements
> > 
> > <!ELEMENT name3 (name1|name2|name3|name4)* >
> > 
> > - structural elements of a fixed length
> > 
> > <!ELEMENT name4 ((name1|name2),name3,name4,(name5|name6|name7)) >
> 
> I would go even simpler than that.  Don't allow nested brackets, #4 could
> be
> represented like this:
> 
> <!ELEMENT name4 (nameA,name3,name4,nameB)>
> <!ELEMENT nameA (name1|name2)>
> <!ELEMENT nameB (name5|name6|name7)>
> 
	yes, that's maybe better.

	i was affraid of defining it this way, because there are a lot of
extra
	elements needed. but these elements help a lot in a better
	structuring, so it's maybe good to be forced to use them.

	for example, it also solves the problem the "running text pattern"
solves,
	but in a more natural way, i think.

	juerg wullschleger

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