The standard approach is to have a (possibly hidden) raw element, and use
inputValueCalc with an expression such as { if(../raw eq '-' then 'unknown'
else ../raw }.
You could also take advantage of the new (experimental) typeCalc feature and
define a type such as:
<xs:simpleType name="make"
dfdlx:inputValueCalc ="{ if(dfdlx:repTypeValue() eq '-' then 'unknown'
else dfdlx:repTypeValue() }"
dfdlx:ouputValueCalc ="{ if(dfdlx:logicalTypeValue() eq 'unknown' then '-'
else dfdlx:logicalTypeValue() }"
dfdlx:repType=”xs:string”>
<xs:restriction base=”xs:string” />
</xs:simpleType>
In theory, there should be a more declarative way of doing this by leveraging
the enumeration support portion of the proposal, but I do not think we have a
mechanism to specify "everything but '-'", which is what it seems like you need
here.
________________________________
From: Costello, Roger L. <[email protected]>
Sent: Friday, July 19, 2019 11:43:08 AM
To: [email protected] <[email protected]>
Subject: How to output "unknown" for a CSV field containing a dash ( - ) symbol?
Hello DFDL community,
My input is a comma-separated value (CSV) file about automobiles:
Year,Make,Model,Description,Price
1997,Ford,E350,"ac, abs, moon",2999.99
1999,Chevy,Venture Extended Edition,,4900.00
1999,-,Venture Extended Edition,Very Large,5000.00
1996,Jeep,Grand Cherokee,"MUST SELL! air, moon roof, loaded",4799.00
Notice that the 4th line has a dash ( - ) in the Make field. The dash denotes
"no data available." For that field, I want my DFDL schema to generate this XML:
<Make>unknown</Make>
Truthfully, I don't have any idea how to create a DFDL schema to do this. Would
you give me some suggestions on how to do this, please?
/Roger
