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Re: Is it a well-formedness error to use a character not in th

• From: Michael Glavassevich <mrglavas@ca.ibm.com>
• To: "Costello, Roger L." <costello@mitre.org>
• Date: Thu, 18 Mar 2010 14:33:00 -0400

"Costello, Roger L." <costello@mitre.org> wrote on 03/18/2010 02:13:00 PM:

> Hi Folks,
>
> Consider this simple XML document. The XML declaration specifies an
> encoding of US-ASCII. The document contains an œ ligature, which is
> not a US-ASCII character:
>
> <?xml version="1.0" encoding="US-ASCII"?>
> <Family-Name>Lecœur</Family-Name>
>
> Should I get an error when I check this document for well-
> formedness? I checked and didn't get an error. I was surprised, as I
> thought that this would be a well-formedness error.

It's not well-formed.

From the XML 1.0 spec [1]:
"It is a fatal error if an XML entity is determined (via default, encoding declaration, or higher-level protocol) to be in a certain encoding but contains byte sequences that are not legal in that encoding."

If you tried this with Xerces-J you'd get a fatal error.

> /Roger
>
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[1] http://www.w3.org/TR/2006/REC-xml-20060816/#charencoding

Michael Glavassevich
XML Parser Development
IBM Toronto Lab
E-mail: mrglavas@ca.ibm.com
E-mail: mrglavas@apache.org

• Follow-Ups:
  • RE: Is it a well-formedness error to use a character not in the encoding specified by the XML declaration?
    • From: "Michael Kay" <mike@saxonica.com>

• References:
  • Is it a well-formedness error to use a character not in theencoding specified by the XML declaration?
    • From: "Costello, Roger L." <costello@mitre.org>