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From "Lars Bruun-Hansen (Jira)" <>
Subject [jira] [Updated] (CSV-253) Handle absent values in input (null)
Date Tue, 29 Oct 2019 15:52:00 GMT


Lars Bruun-Hansen updated CSV-253:
    Attachment: Parser-setting-absentIsNull-Javadoc.png

> Handle absent values in input (null)
> ------------------------------------
>                 Key: CSV-253
>                 URL:
>             Project: Commons CSV
>          Issue Type: Improvement
>          Components: Parser
>            Reporter: Lars Bruun-Hansen
>            Priority: Major
>         Attachments: Parser-setting-absentIsNull-Javadoc.png
>          Time Spent: 20m
>  Remaining Estimate: 0h
> The parser must be able to handle absent values in input and translate that into {{null}}
as required. I see several tickets on this matter in the history, but none seem to have addressed
the issue, at least not for parsing. 
> For this problem, I see a need to introduce a new term:
> Definition: _Absent value_ is when there are zero characters between field delimiters.
> Specifically the aim is to be able to parse the following:
> {noformat}
>     "John",,"Doe"    // 2nd element is absent
>     ,"AA",123        // 1st element is absent
>     "John",90,       // 3rd element is absent
>     "",,90           // 2nd element is absent (1st element isn't)
> {noformat}
> See also CSV-93 which I think never addressed the issue, probably because the reporter
was happy with having the issue fixed for CSV output, not for parsing.
> A PR is coming...

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