Re: Allow <info> as root element?

Hi Peter,

On 30.11.22 23:08, Peter Flynn wrote:
>
>>> I make most or all elements start elements in my DocBook variants
>>> because why not?
>>
>> That true, this would be possible. However, that wouldn't be DocBook an=
ymore.
>
> I'm not sure I understand this. If DocBook is expressed as a DTD, you ca=
n
> create a document with any element type as the root element type, becaus=
e there
> is no way in a DTD to say what must or must not be the root element type=
 except
> for the one implied by an element type that does not appear in any conte=
nt model.
> [...]
>
> Or have I missed something?

You are right, the _DTD_ cannot define a start element and as such every r=
oot
element would be possible. But you miss the point. :-)

The DTD is _not_ not used for DocBook 5 (with the exception of 5.0, but th=
at's
a different story). The official blessed DocBook 5 schema is written in RE=
LAX
NG (RNG). In RNG you _can_ define start elements. This is what DocBook 5 d=
id.
However, <info> is not part of that list.

In other, more practical words: if you load a file which has <info> has ro=
ot
element, such a file would be flagged as invalid in your XML editor if you=
 try
to validate it.


=2D-
Gru=C3=9F/Regards
   Thomas Schraitle