[Xml-compile] Problem to write repeatable blocks

[Alex Bernier]

Hello,

I have some issues when trying to use to produce "Repetative blocks" with XML-Compile.

I would like to produce the following XML output :
<questions>
    <inputQuestion id="q1">
        <inputTypes>
            <input type="TEXT_ALPHANUMERIC"/>
        </inputTypes>
        <label xml:lang="en"><text>Choice 1</text></label>
    </inputQuestion>
    <inputQuestion id="q2">
        <inputTypes>
            <input type="TEXT_ALPHANUMERIC"/>
        </inputTypes>
        <label xml:lang="en"><text>Choice 2</text></label>
    </inputQuestion>
</questions>

I use the following Perl syntax (as a result of a SOAP operation) :

  return +{ questions =>
            {
              cho_inputQuestion => 
              [
                  inputQuestion => { id=>'q1',
                    inputTypes => {
                      input => { type => 'TEXT_ALPHANUMERIC' }
                    },
                    label => { lang=>'en', text => 'Choice 1' }
                  },
                  inputQuestion => { id=>'q2',
                    inputTypes => {
                      input => { type => 'TEXT_ALPHANUMERIC' }
                    },
                    label => { lang=>'en', text => "Choice 2" }
                  }
              ]
            }
          };

That produces the following error : alert: Can't use an undefined value as a HASH reference at /usr/local/share/perl/5.14.2/XML/Compile/Translate/Writer.pm line 339


I paste a part of the Schema below.

Is the syntax I use incorrect ?
How can I fix this ?

Regards,

Alex



The Schema: 
<xs:element name="questions">
    <xs:complexType>
        <xs:choice>
            <xs:choice minOccurs="1" maxOccurs="unbounded">
                <xs:element ref="multipleChoiceQuestion"/>
                <xs:element ref="inputQuestion"/>
            </xs:choice>
            <xs:element name="contentListRef" type="xs:NMTOKEN"/>
            <xs:element ref="label"/>
        </xs:choice>
    </xs:complexType>
</xs:element>

<xs:element name="multipleChoiceQuestion">
   ...
</xs:element>

<xs:element name="inputQuestion">
    <xs:complexType>
        <xs:sequence>
            <xs:element name="inputTypes" minOccurs="1" maxOccurs="1">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element ref="input" minOccurs="1" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element ref="label" minOccurs="1" maxOccurs="1"/>
        </xs:sequence>
        <xs:attribute name="id" type="xs:NMTOKEN" use="required"/>
    </xs:complexType>
</xs:element>

<xs:element name="input">
    <xs:complexType>
        <xs:attribute name="type" use="required">
            <xs:simpleType>
                <xs:restriction base="xs:string">
                    <xs:enumeration value="TEXT_NUMERIC"/>
                    <xs:enumeration value="TEXT_ALPHANUMERIC"/>
                    <xs:enumeration value="AUDIO"/>
                </xs:restriction>
            </xs:simpleType>
        </xs:attribute>
    </xs:complexType>
</xs:element>

<xs:element name="label">
    <xs:complexType>
        <xs:sequence>
            <xs:element name="text" type="xs:string" minOccurs="1" maxOccurs="1"/>
            <xs:element name="audio" minOccurs="0" maxOccurs="1">
                <xs:complexType>
                    <xs:attribute name="uri" type="xs:anyURI" use="required"/>
                    <xs:attribute name="rangeBegin" type="xs:long" use="optional"/>
                    <xs:attribute name="rangeEnd" type="xs:long" use="optional"/>
                    <xs:attribute name="size" type="xs:long" use="optional"/>
                </xs:complexType>
            </xs:element>
        </xs:sequence>
        <xs:attribute ref="xml:lang" use="required"/>
        <xs:attribute name="dir" use="optional">
           ...
        </xs:attribute>						
    </xs:complexType>
</xs:element>