Thank you, very kindly, Gerrit, for this detailed example!
. . . . . Ken
At 2019-03-02 15:53 +0100, Imsieke, Gerrit, le-tex wrote:
>Content-Transfer-Encoding: 8bit
>
>
>
>On 02.03.2019 14:38, G. Ken Holman wrote:
>>I wonder if Norm could be convinced to consider broadening the
>>scope in a new XML Catalog 1.2?
>
>But even if he conceived such a namespace URI to schema location
>mapping, validating parsers still need to be instructed to use the mapping.
>
>But since you mention Norm: He happens to be the editor of the XProc
>specs and the author of the XProc processor XML Calabash.
>
>With the catalog entry that you suggested, and with a small XProc
>pipeline, we can actually resolve the namespace URI of the top-level
>UBL document element to the corresponding schema!
>
>This goes into the catalog that Calabash uses:
>
><uri name="urn:oasis:names:specification:ubl:schema:xsd:Invoice-2"
> uri="../maindoc/UBL-Invoice-2.2.xsd"/>
>
>The XML catalog is in the file xmlcatalog/catalog.xml, which is
>supplied to Calabash as seen in this front-end bash script for
>invoking Calabash:
>https://github.com/transpect/calabash-frontend/blob/master/calabash.sh
>
>In addition to the invoice schema in maindoc/, there is a mirror of
>the https://docs.oasis-open.org/ubl/os-UBL-2.2/xsd/common/ directory
>alongside maindoc/
>
>This is ublval.xpl:
>
><p:declare-step xmlns:p="http://www.w3.org/ns/xproc" version="1.0">
> <p:input port="source" sequence="true" primary="true"/>
> <p:output port="result" sequence="true" primary="true"/>
>
> <p:for-each name="validation-iteration">
> <p:load name="load-schema">
> <p:with-option name="href" select="namespace-uri(/*)"/>
> </p:load>
> <p:sink/>
> <p:validate-with-xml-schema assert-valid="true">
> <p:input port="source">
> <p:pipe port="current" step="validation-iteration"/>
> </p:input>
> <p:input port="schema">
> <p:pipe port="result" step="load-schema"/>
> </p:input>
> </p:validate-with-xml-schema>
> </p:for-each>
>
></p:declare-step>
>
>This is an input document:
>
><Invoice xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>xsi:schemaLocation="urn:oasis:names:specification:ubl:schema:xsd:Invoice-2
>../maindoc/UBL-Invoice-2.2.xsd"
> xmlns="urn:oasis:names:specification:ubl:schema:xsd:Invoice-2"
>xmlns:cac="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2"
>xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">
> <cbc:UBLVersionID>2.2</cbc:UBLVersionID>
> <cbc:ID>TOSL108</cbc:ID>
> <cbc:IssueDate>2009-12-15</cbc:IssueDate>
> <cac:AccountingSupplierParty/>
> <cac:AccountingCustomerParty/>
> <cac:PayeeParty/>
> <cac:BuyerCustomerParty/>
> <cac:SellerSupplierParty/>
> <cac:TaxRepresentativeParty/>
> <cac:Delivery/>
> <cac:DeliveryTerms/>
> <cac:PaymentMeans>
> <cbc:PaymentMeansCode/>
> </cac:PaymentMeans>
> <cac:PaymentTerms/>
></Invoice>
>
>This is the XML Calabash invocation (using the front-end bash script
>linked above):
>
>calabash/calabash.sh -i source=invoice.xml ublval.xpl
>
>This is the result:
>
>ERROR: err:XC0053:XProc error err:XC0053
>ERROR: cause: cvc-complex-type.2.4.b: The content of element
>'Invoice' is not complete. One of
>'{"urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2":PaymentTerms,
>"urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2":PrepaidPayment,
>"urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2":AllowanceCharge,
>"urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2":TaxExchangeRate,
>"urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2":PricingExchangeRate,
>"urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2":PaymentExchangeRate,
>"urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2":PaymentAlternativeExchangeRate,
>"urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2":TaxTotal,
>"urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2":WithholdingTaxTotal,
>"urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2":LegalMonetaryTotal}'
>is expected.
>ERROR: It is a dynamic error if the assert-valid option is true and
>the input document is not valid.
>
>If you don't want the XML validation to fail but to issue a report,
>you can use p:try/p:catch. I can send you a more elaborate pipeline
>if you like.
>
>The main trick is: In XProc, but also in other scripting languages
>that provide the XPath function namespace-uri(), you can read the
>namespace URI of the top-level element and, thanks to the catalog,
>resolve it immeadiately to a local copy of your schema.
>
>You are welcome.
>
>Gerrit
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