[
https://issues.apache.org/jira/browse/CSV-293?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17873721#comment-17873721
]
Gary D. Gregory commented on CSV-293:
-------------------------------------
> Most probably the multiple representation in CSVW is because the separated
> CSV files could contain different representations.
In this case, one CSVFormat instance per CSV file type makes more sense. It's
also more precise.
> 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
> Reporter: Paul Millar
> Priority: Minor
>
> 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.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
