[jira] [Commented] (METAMODEL-1141) CSVDataContext does not support standard CSV escape

["Kasper Sørensen (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/METAMODEL-1141?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16025027#comment-16025027 ] 

Kasper Sørensen commented on METAMODEL-1141:
--------------------------------------------

I think it's a good idea to upgrade. Last time I tried that however, I recall some tests failing. But that's probably solveable.

> CSVDataContext does not support standard CSV escape
> ---------------------------------------------------
>
>                 Key: METAMODEL-1141
>                 URL: https://issues.apache.org/jira/browse/METAMODEL-1141
>             Project: Apache MetaModel
>          Issue Type: Bug
>    Affects Versions: 4.5.4
>            Reporter: Dennis Du Krøger
>         Attachments: csv_doublequoteescape.csv, DoubleQuoteEscapeTest.java
>
>
> The proper way to escape a CSV is by repeating the quote character (see https://tools.ietf.org/html/rfc4180#section-2). This is also the only way that Excel and LibreOffice accepts escapes.
> While the CSVDataContext _can_ write using double quotes, it does not support reading it back.
> It's a problem with the OpenCSV parser we are using. I upgraded to 3.9 (it has changed Maven group name and Java package name to com.opencsv), and now there's a RFC4180Parser available, which should behave properly. Unfortunately, that means choosing between parsers depending on settings.
> At the same time, since we're closing at a breaking release, I'd maybe make the standards-based configuration the default. The current default doesn't seem to be compatible with anything people use.
> Attached is a test case.



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