[DAFFODIL-2183] Unparse nilled complex element fails.

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.4.0
• Fix Version/s: 2.5.0
• Component/s: Back End
• Assignee: Unassigned
• Reporter: Mike Beckerle
• Created: 16/Jul/19 14:57
• Updated: 20/May/21 12:34
• Resolved: 06/May/21 14:34

Description

This schema uses a nillable complex element.

<xs:element name="input">
     <xs:complexType>
         <xs:sequence dfdl:separator="%NL;" dfdl:separatorPosition="infix">
             <xs:element name="person" maxOccurs="unbounded" dfdl:occursKind="implicit" dfdl:initiator="Person:" nillable="true" dfdl:nilValue="%ES;" dfdl:nilValueDelimiterPolicy="initiator">
                 <xs:complexType>
                     <xs:sequence dfdl:separator="," dfdl:separatorPosition="infix">
                         <xs:element name="name" type="xs:string" />
                         <xs:element name="age" type="xs:string" />
                     </xs:sequence>
                 </xs:complexType>
             </xs:element>
         </xs:sequence>
     </xs:complexType>
 </xs:element>

Parsing this data:

 

Person:John Doe,29
Person:Sally Smith,34
Person:
Person:Bob Jones,51

 

 That produces this infoset when parsing:

<input xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
   <person>
     <name>John Doe</name>
     <age>29</age>
   </person>
   <person>
     <name>Sally Smith</name>
     <age>34</age>
   </person>
   <person xsi:nil="true"></person>
   <person>
     <name>Bob Jones</name>
     <age>51</age>
   </person>
 </input>

Unparsing dies with error:

Unparse Error: Element {}person does not have a value.