Paul Millar created CSV-293:
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Summary: Add support for multiple null String values
Key: CSV-293
URL: https://issues.apache.org/jira/browse/CSV-293
Project: Commons CSV
Issue Type: Improvement
Components: Parser
Affects Versions: 1.9.0
Reporter: Paul Millar
The [CSVW namespace|https://www.w3.org/ns/csvw] provides metadata describing a
CSV file. One element of this is the ability to associate certain certain
values with the {{null}} value, as recorded by the [csvw:null
property|https://www.w3.org/ns/csvw#property-definitions].
This definition corresponds (broadly) to the "null String" concept (see
[org.apache.commons.csv.CSVFormat#setNullString|http://commons.apache.org/proper/commons-csv/apidocs/org/apache/commons/csv/CSVFormat.Builder.html#setNullString-java.lang.String-]),
with one noticeable difference: {{CSVFormat}} supports only a single "null
String" value while CSVW, through {{csvw:null}, supports multiple Strings.
In order to fully support CSVW, it would be helpful if {{CSVFormat}} were to be
updated to allow multiple null String values.
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