Re: [DFDL-WG] still no need for fn:error

25 Jul 2013

      Respin of this example:

Here's the example as suggested by Jonathan of how to issue an error that I
previously was suggesting needed fn:error. I'm convinced this is sufficient
and we can avoid the need for fn:error now.

<xs:element name="magic_number" type="ex:uint32" dfdl:byteOrder="bigEndian">
 <xs:annotation>
   <xs:appinfo source="*http://www.ogf.org/dfdl/*<http://www.ogf.org/dfdl/dfdl-1.0/>
">
     <dfdl:assert
       test="{ (xs:unsignedInt(.) eq *dfdl:unsignedInt('xa1b2c3d4')*) |
               (xs:unsignedInt(.) eq *dfdl:unsignedInt('xd4c3b2a1')*) }"
       message="{ fn:concat(
                     'Magic number ',
                     dfdl:hexBinary(dfdl:unsignedInt(.)),
                     ' was not 0xA1B2C3D4 (for bigEndian) or 0xD4C3B2A1
(for littleEndian).' }" />
   <dfdl:setVariable ref="ex:bOrd">{ xs:unsignedInt(.) }<dfdl:setVariable>
   </xs:appinfo>
 </xs:annotation>
</xs:element>

On Wed, Jul 24, 2013 at 11:58 AM, Steve Hanson <smh@uk.ibm.com> wrote:
...
Mike,  I think you meant:
test="{ (xs:unsignedInt(.) eq *dfdl:unsignedInt('xa1b2c3d4')*) |
               (xs:unsignedInt(.) eq *dfdl:unsignedInt('xd4c3b2a1')*) }"
Regards
Steve Hanson
Architect, IBM Data Format Description Language (DFDL)
Co-Chair, *OGF DFDL Working Group* <http://www.ogf.org/dfdl/>
IBM SWG, Hursley, UK*
**smh@uk.ibm.com* <smh@uk.ibm.com>
tel:+44-1962-815848
From:        Mike Beckerle <mbeckerle.dfdl@gmail.com>
To:        dfdl-wg@ogf.org,
Date:        24/07/2013 16:46
Subject:        [DFDL-WG] still no need for fn:error
Sent by:        dfdl-wg-bounces@ogf.org
------------------------------
Here's the example as suggested by Jonathan of how to issue an error that
I previously was suggesting needed fn:error. I'm convinced this is
sufficient and we can avoid the need for fn:error now.
<xs:element name="magic_number" type="ex:uint32"
dfdl:byteOrder="bigEndian">
 <xs:annotation>
   <xs:appinfo source="*http://www.ogf.org/dfdl/*<http://www.ogf.org/dfdl/dfdl-1.0/>
">
     <dfdl:assert
       test="{ (xs:unsignedInt(.) eq *dfdl:unsignedInt('xa1b2c3d4')*) |
               (xs:unsignedInt(.) eq *dfdl:unsignedInt('xd4c3b2a1')*) }"
       message="{ fn:concat(
                     'Magic number ',
                     dfdl:hexBinary(dfdl:unsignedInt(.)),
                     ' was not 0xA1B2C3D4 (for bigEndian) or 0xD4C3B2A1
(for littleEndian).' }" />
   <dfdl:setVariable ref="ex:bOrd">{ xs:unsignedInt(.) }<dfdl:setVariable>
   </xs:appinfo>
 </xs:annotation>
</xs:element>
--
Mike Beckerle | OGF DFDL Workgroup Co-Chair | Tresys Technology | *
www.tresys.com* <http://www.tresys.com/>
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-- 
Mike Beckerle | OGF DFDL Workgroup Co-Chair | Tresys Technology |
www.tresys.com