[oXygen-user] html validation error

George Cristian Bina
Tue May 12 02:13:31 CDT 2009

Hi Lars,

That should be an SGML DTD, thus the errors when you validate it as an 

* use a catalog to map that to a local copy and edit the local copy to 
make it a valid XML DTD

* use the XHTML DTD, for example:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"

This is also mapped by oXygen catalogs into a local copy.

Best Regards,
George Cristian Bina
<oXygen/> XML Editor, Schema Editor and XSLT Editor/Debugger

Lars Huttar wrote:
> Hello,
> Often when I copy and paste HTML code from somewhere, and edit the
> resulting page in Oxygen, I get a validation error in
> http://www.w3.org/TR/html4/strict.dtd
> For example, when the DOCTYPE at the beginning says
> "http://www.w3.org/TR/html4/strict.dtd">
> I get the validation error:
>   F [Xerces] The declaration for the entity "ContentType" must end with '>'.
> If I click on this error message, it takes me not to my html document,
> but to http://www.w3.org/TR/html4/strict.dtd, to the following declaration:
> <!ENTITY % ContentType "CDATA"
>     -- media type, as per [RFC2045]
>     -->
> The middle of those three lines is highlighted.
> I could understand if something in my own HTML were invalid; but this
> appears to be saying that the standard DTD provided by W3C is not
> well-formed.
> I'm not a DTD guru, but I would be very surprised if that were the case.
> Is this a Xalan bug, then?
> This is not a showstopper for me, but it does make it more complicated
> for me to do validation on the html I'm writing.
> Thanks,
> Lars
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