Hello DFDL community,
My input file contains a bunch of Import Directory Entries. The last Entry is
empty (filled with null values). I figured that the way to handle this is with
a lengthPattern (see below), but that results in this error message:
[error] Schema Definition Error: Element element reference
{}Import_Directory_Entry does not meet the requirements of Pattern-Based
lengths and Scanability.
What is the right way to express this? /Roger
<xs:element name="Import_Directory_Table">
<xs:complexType>
<xs:sequence>
<xs:element ref="Import_Directory_Entry" maxOccurs="unbounded"
dfdl:lengthKind="pattern" dfdl:lengthUnits="bytes"
dfdl:lengthPattern=".+?(?=((\x00){20,20}|$))" />
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="Import_Directory_Entry">
<xs:complexType>
<xs:sequence>
<xs:element name="Import_Lookup_Table_RVA" type="addressType" />
<xs:element name="Date_Time_Stamp" type="xs:dateTime"
dfdl:length="4"
dfdl:lengthKind="explicit"
dfdl:binaryCalendarRep="binarySeconds"
dfdl:lengthUnits="bytes"
dfdl:binaryCalendarEpoch="1970-01-01T00:00:00" />
<xs:element name="Forwarder_Chain" type="unsignedint32" />
<xs:element name="Name_RVA" type="addressType" />
<xs:element name="Import_Address_Table_RVA" type="addressType" />
</xs:sequence>
</xs:complexType>
</xs:element>
