Re: [xml] [Bug 126351] Changed - Entity resolution failed

[Daniel Veillard <veillard redhat com>]

On Thu, Nov 06, 2003 at 06:21:06PM +0100, Karl Eichwalder wrote:
> +Actually it's for a slightly different reason:
> +  booktitle.xml is an external parsed entity.
> +The <?xml at the beginning us not parsed using the xmlDecl rule of
> +XML-1.0 but by textDecl
> +   http://www.w3.org/TR/REC-xml#NT-TextDecl
> +the encoding is mandatory for external parsed entities.
> +
> +The document must be fixed. It was a bug in libxml2 that apparently
> +got introduced at some point (I used to check that I'm sure) and
> +got fixed in 2.6.2
> +The gimp files will have to be fixed !
> +Or they should use XInclude to aggregate the files instead of
> +using external parsed entities.
> +
> +Daniel
>
> I guess this section is what you have in mind:
>
>     Although an XML processor is required to read only entities in the
>     UTF-8 and UTF-16 encodings, it is recognized that other encodings
[...]

  No, it has nothing to do with the encoding of the entity.

What I pointed to is IMHO very clear:
  http://www.w3.org/TR/REC-xml#NT-TextDecl
---------------------
  4.3.1 The Text Declaration

  External parsed entities should each begin with a text declaration.
  Text Declaration
  [77]    TextDecl    ::=    '<?xml' VersionInfo? EncodingDecl S? '?>'
---------------------

The following entity:
---------
<?xml version='1.0'>
<foo/>
---------

  is fine as a document.
But if used as an external parsed entity it generate a fatal error
because it misses the EncodingDecl encoding part of the text declaration
which is not optional.
Compare to  the XML Declaration
http://www.w3.org/TR/REC-xml#NT-XMLDecl
---------
[23]    XMLDecl    ::=    '<?xml' VersionInfo EncodingDecl? SDDecl? S? '?>'
---------

My conclusion is right, you must add the encoding declaration in the
included entities (or drop the TextDecl altogether if using UTF-8,
or use XInclude instead of parsed entities).

Daniel

-- 
Daniel Veillard      | Red Hat Network https://rhn.redhat.com/
veillard redhat com  | libxml GNOME XML XSLT toolkit  http://xmlsoft.org/
http://veillard.com/ | Rpmfind RPM search engine http://rpmfind.net/