-----Original Message-----
From: Stefan Hinz [mailto:[email protected]]
Sent: 30 July 2012 13:45
To: [email protected]
Subject: Re: [docbook-apps] What is Xml ?
Hi Richard,
> Please can someone direct me to an authoritative
explanation of what
constitutes a valid XML file ?
Let me try with expert knowledge freshly gained from Wikipedia
(http://en.wikipedia.org/wiki/XML#Well-formedness_and_error-handling).
For your below document, this means:
* The<?xml?> prolog is optional.
* There's no single "root" element that contains all the
other elements.
Therefore, the XML isn't well-formed, and thus not valid.
HTH.
Cheers,
Stefan
I've been provided with some "XML" files which are a bit like this :
<?xml?>
<category id="information">
<section id="general">
<element id="fileinfo" />
</section>
</category>
<category id="device">
<section id="Status">
<element id="1" />
<element id="2" />
</section>
</category>
They are described as "XML", together with a note that "...
file can be
created using any XML editor providing the format and tags
required are
used", though I get various errors from emacs+nxml-mode,
XmlMind and Serna.
I think that they are not well-formed, on account of having
two "root
nodes".
I'm also a bit surprised by the lack of the usual version,
encoding and
standalone attributes in the xml PI, though I suspect they
are actually
optional.
And I've just found that it starts with (hex) ef bb bf,
before the "<?"
- is that a byte-order mark ? Or just another non-standardness ?
I will need to pass this back to the originators so that
they can either :
1. Change their software to produce/use real XML.
or:
2. Change their documentation to refer to "XML-like" or similar.
In the meantime I'll need to do some sort of processing to
get it into a
form that I can process.
Appreciatively,
Richard.
Blue line
*Richard Kerry*
BNCS Engineer
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Cheers,
Stefan Hinz<[email protected]>, MySQL Documentation Manager
Phone: +49-30-82702940, Fax: +49-30-82702941, http://dev.mysql.com/doc
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