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Re: Namespace problems in XPath expression with label attribute

From: Florent Georges <fgeorges@fgeorges.org>
Date: Sat, 29 Oct 2011 02:11:20 +0200
Message-ID: <CADyR_r0k5tb-j+dq-yKoB0wOQoPsaJNBYLXVCu7wavSp02hSNA@mail.gmail.com>
To: Georges Schmitz <georges.schmitz@arcor.de>
Cc: vojtech.toman@emc.com, xproc-dev@w3.org
  Hi,

  Thanks for the details.  Definitely looks like a bug in Calabash to
me.  I haven't looked in details wrt to Calumet output though.  Norm
should be able to give you a definitive answer.

  Regards,

-- 
Florent Georges
http://fgeorges.org/
http://h2oconsulting.be/


On 25 October 2011 00:52, Georges Schmitz wrote:
> Hi Vojtech, hi Florent,
>
> well, I inspected the wrong place of my result document produced with
> calumet (which was pretty large), and I wasn't completly right nor wrong,
> because calumet produces *some* output with elements bound to a namespace,
> but *not* the one I expect. Please see the examples below.
>
> A) The PIPELINE could be as simple as this one:
>
> <p:declare-step xmlns:p="http://www.w3.org/ns/xproc"
> xmlns:ns2="http://www.empic.aero/ns/empic-eap/oas"
>     version="1.0" name="clean-up-ratings">
>     <p:input port="source" primary="true">
>         <p:empty/>
>     </p:input>
>     <p:output port="result"/>
>
>   <p:label-elements match="ns2:rating-entry" attribute="synchro-id"
> label="concat('eap-145','-', parent::ns2:rating-entry/ns2:code, '-',
> ns2:code)" replace="true" name="init-synchro-id"/>
>
> </p:declare-step>
>
> B) the INPUT document
>
> <rating-system-export xmlns:ns2="http://www.empic.aero/ns/empic-eap/oas">
>     <ns2:rating-root >
>         <ns2:name>EASA 145</ns2:name>
>         <ns2:rating-entry >
>             <ns2:code>A</ns2:code>
>             <ns2:text xml:lang="en">Aircraft</ns2:text>
>             <ns2:rating-entry >
>                 <ns2:code>A1</ns2:code>
>                 <ns2:text xml:lang="en">Aeroplane above 5700 kg</ns2:text>
>                 <ns2:rating-entry >
>                     <ns2:code>DUMMY</ns2:code>
>                     <ns2:text xml:lang="en">Will state aeroplane/ series or
> type and/or the maintenance task(s)</ns2:text>
>                 </ns2:rating-entry>
>             </ns2:rating-entry>
>         </ns2:rating-entry>
>     </ns2:rating-root>
> </rating-system-export>
>
> C) CALUMET OUTPUT:
>
> <rating-system-export xmlns:ns2="http://www.empic.aero/ns/empic-eap/oas">
>     <ns2:rating-root>
>         <ns2:name>EASA 145</ns2:name>
>         <ns2:rating-entry synchro-id="eap-145--">
>             <ns2:code>A</ns2:code>
>             <ns2:text xml:lang="en">Aircraft</ns2:text>
>             <ns2:rating-entry synchro-id="eap-145-A-">
>                 <ns2:code>A1</ns2:code>
>                 <ns2:text xml:lang="en">Aeroplane above 5700 kg</ns2:text>
>                 <ns2:rating-entry synchro-id="eap-145-A1-">
>                     <ns2:code>DUMMY</ns2:code>
>                     <ns2:text xml:lang="en">Will state aeroplane/ series or
> type and/or the maintenance task(s)</ns2:text>
>                 </ns2:rating-entry>
>             </ns2:rating-entry>
>         </ns2:rating-entry>
>     </ns2:rating-root>
> </rating-system-export>
>
> ==>> the direct child element "ns2:code" is not evaluated, the last
> synchro-id attribute should be "eap-145-A1-DUMMY", but "DUMMY" is missing.
>
> D) NO OUTPUT with CALABASH, exception instead:
>
> 25.10.2011 00:43:49 com.xmlcalabash.util.DefaultXProcMessageListener error
> SCHWERWIEGEND: cleanup-lang-and-customer.xpl:10:149:err:XD0023:Expression
> could not be evaluated
> 25.10.2011 00:43:49 com.xmlcalabash.drivers.Main error
> SCHWERWIEGEND: It is a dynamic error if an XPath expression is encountered
> which cannot be evaluated (because it is syntactically incorrect, contains
> references to unbound variables or unknown functio
> ns, or for any other reason).
> 25.10.2011 00:43:49 com.xmlcalabash.drivers.Main error
> SCHWERWIEGEND: Underlying exception: net.sf.saxon.s9api.SaxonApiException:
> Prefix ns2 has not been declared
>
> E) replace "ns2" with "*" in the label attribute of the pipeline
>
> label="concat('eap-145','-', parent::*:rating-entry/*:code, '-', *:code)"
>
> and run it again with calabash gives me finally the expected result (but
> using the * wildcard is not satisfying and furthermore it doesn't work with
> calumet):
>
> <rating-system-export xmlns:ns2="http://www.empic.aero/ns/empic-eap/oas">
>     <ns2:rating-root>
>         <ns2:name>EASA 145</ns2:name>
>         <ns2:rating-entry synchro-id="eap-145--A">
>             <ns2:code>A</ns2:code>
>             <ns2:text xml:lang="en">Aircraft</ns2:text>
>             <ns2:rating-entry synchro-id="eap-145-A-A1">
>                 <ns2:code>A1</ns2:code>
>                 <ns2:text xml:lang="en">Aeroplane above 5700 kg</ns2:text>
>                 <ns2:rating-entry synchro-id="eap-145-A1-DUMMY">
>                     <ns2:code>DUMMY</ns2:code>
>                     <ns2:text xml:lang="en">Will state aeroplane/ series or
> type and/or the maintenance task(s)</ns2:text>
>                 </ns2:rating-entry>
>             </ns2:rating-entry>
>         </ns2:rating-entry>
>     </ns2:rating-root>
> </rating-system-export>
>
> Hope these examples are detailed enough to identify the problems in both
> tools.
>
> Greetings,
> Georges
>
>
Received on Saturday, 29 October 2011 00:12:10 GMT

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