Re: [DFDL-WG] How to ignore case and validate an element with an enumerated list

20 Jun 2013

      Yes that looks good. It will only parse the data though. Do you need to 
unparse? To unparse you will need dfdl:outputValueCalc="{../Type}" on 
MixedCaseType, and dfdl:outputValueCalc="{../Subtype}" on 
MixedCaseSubtype. 

Regards

Steve Hanson
Architect, IBM Data Format Description Language (DFDL)
Co-Chair, OGF DFDL Working Group
IBM SWG, Hursley, UK
smh@uk.ibm.com
tel:+44-1962-815848

From:   "Garriss Jr., James P." <jgarriss@mitre.org>
To:     "dfdl-wg@ogf.org" <dfdl-wg@ogf.org>, 
Date:   20/06/2013 19:19
Subject:        [DFDL-WG] How to ignore case and validate an element with 
an      enumerated list
Sent by:        dfdl-wg-bounces@ogf.org

Mike came up with a solid solution to the problem I posted previously. 
While not quite as elegant as adding the “dfdl:ignoreElementCase=yes” 
property that I would prefer, it’s good enough.  Thanks, Mike!

Here’s the relevant parts:

    <xsd:complexType name="MimeTypeType">
        <xsd:sequence>
            <xsd:sequence dfdl:hiddenGroupRef="MixedCaseMimeTypeGroup"/>
            <!-- logical representation of the type and subtype, where 
xPath is used to convert all the characters to lower case -->
            <xsd:element name="Type" dfdl:inputValueCalc="{ 
fn:lower-case(../MixedCaseType) }">
                <xsd:annotation>
                    <xsd:appinfo source="http://www.ogf.org/dfdl/dfdl-1.0/
">
                        <dfdl:assert test="{ dfdl:checkConstraints(.) }"
                            message="The type must match one of the values 
on the enumerated list."/>
                    </xsd:appinfo>
                </xsd:annotation>
                <xsd:simpleType>
                    <xsd:restriction base="xsd:string">
                        <xsd:enumeration value="application"/>
                        <xsd:enumeration value="multipart"/>
                        <xsd:enumeration value="message"/>
                        <xsd:enumeration value="text"/>
                    </xsd:restriction>
                </xsd:simpleType>
            </xsd:element>
            <xsd:element name="Subtype" dfdl:inputValueCalc="{ 
fn:lower-case(../MixedCaseSubtype) }">
                <xsd:annotation>
                    <xsd:appinfo source="http://www.ogf.org/dfdl/dfdl-1.0/
">
                        <dfdl:assert test="{ dfdl:checkConstraints(.) }"
                            message="The subtype must match one of the 
values on the enumerated list."/>
                    </xsd:appinfo>
                </xsd:annotation>
                <xsd:simpleType>
                    <xsd:restriction base="xsd:string">
                        <xsd:enumeration value="pdf"/>
                        <xsd:enumeration value="ms-tnef"/> <!-- outlook 
-->
                        <xsd:enumeration value="alternative"/>
                        <xsd:enumeration value="mixed"/>
                        <xsd:enumeration value="rfc822"/>
                        <xsd:enumeration value="plain"/>
                        <xsd:enumeration value="html"/>
                    </xsd:restriction>
                </xsd:simpleType>
            </xsd:element>
        </xsd:sequence>
    </xsd:complexType>

    <!-- physical representation of the type and subtype, which can 
contain upper and lowercase characters -->
    <xsd:group name="MixedCaseMimeTypeGroup">
        <xsd:sequence dfdl:separator="/">
            <xsd:element name="MixedCaseType" type="xsd:string"/>
            <xsd:element name="MixedCaseSubtype" type="xsd:string"/>
        </xsd:sequence>
    </xsd:group>--
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