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Re: An XML document is not well-formed if encoding="..."does n

• From: Michael Kay <mike@saxonica.com>
• To: xml-dev@lists.xml.org
• Date: Fri, 28 Dec 2012 23:08:37 +0000

Try the same experiment using a text editor rather than an XML editor. 
An XML editor can reasonably be expected to understand the encoding 
specified in the XML declaration; a general-purpose text editor is 
unlikely to do so.

Michael Kay
Saxonica

On 28/12/2012 20:37, Costello, Roger L. wrote:
> Thanks Chris for pointing us to that article: XML on the Web has Failed
>
> I am making my way through it.
>
> This statement in the article piqued my interest:
>
>      ... determining the actual character encoding of an
>      XML document is a prerequisite for determining its
>      well-formedness ...
>
> I decided to do an experiment.
>
> I created this XML document and encoded each character in the document using the iso-8859-1 encoding and in the encoding="..." I asserted that I am using the iso-8859-1 encoding:
>
> <?xml version="1.0" encoding="iso-8859-1"?>
> <Name>López</Name>
>
> I checked the document for well-formedness and the XML parser said it is well-formed.
>
> Good.
>
> Then I changed encoding="iso-8859-1" to encoding="utf-8":
>
> <?xml version="1.0" encoding="utf-8"?>
> <Name>López</Name>
>
> I checked it for well-formedness and the parser said it is still well-formed.
>
> Huh?
>
> Shouldn't I have gotten a well-formedness error?
>
> I did my experiment using the latest version of Oxygen XML. I think that it uses the Xerces XML Parser, right?
>
> Is this a bug in Xerces?
>
> /Roger
>
>
>
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• References:
  • An XML document is not well-formed if encoding="..." does not matchthe actual encoding of the characters in the document, right?
    • From: "Costello, Roger L." <costello@mitre.org>