Re: [docbook] upgrade 4.5 => 5.0 failed (on rather basic example)

[Jirka Kosek <jirka@kosek.cz>]

wolfgang haefelinger wrote:

> I'm getting an error on a rather simple document. Here it comes ..
> 
> <?xml version=3D"1.0" encoding=3D"UTF-8"?>
> <!DOCTYPE article
> PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
> "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd";>
> <article lang=3D"">
>  <sect1>
>    <title>Hello, ..</title>
>    <para>world</para>
>  </sect1>
> </article>
> 
> This document is valid according to a) Emacs/nxml and b) MSV.

However this document is not proper DocBook V4.5 article as it misses
<title> element as direct child of <article> or <articleinfo>.
Validation hasn't spot this problem because expressing such constraint
in DTD/W3C XML Schema is impossible.

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