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https://issues.apache.org/jira/browse/CSV-235?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16747473#comment-16747473
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Gary Gregory commented on CSV-235:
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Hi [~exia]
We welcome patches on GitHub with unit tests :)
Gary
> WRONG Implementation for RFC4180
> ----------------------------------
>
> Key: CSV-235
> URL: https://issues.apache.org/jira/browse/CSV-235
> Project: Commons CSV
> Issue Type: Bug
> Components: Parser
> Affects Versions: 1.6
> Reporter: Edward Xia
> Priority: Major
>
> [https://tools.ietf.org/html/rfc4180#section-2]
> 7. If double-quotes are used to enclose fields, then a double-quote
> appearing inside a field must be escaped by preceding it with
> another double quote. For example:
> "aaa","b""bb","ccc"
> Apparently, base on a previous issue:
> https://issues.apache.org/jira/browse/CSV-208, it turns out common-csv *does
> not even support quote and escape to be the same character*.
> RFC 4180 defines that quote and escape are both DQUOTE, however in common-csv
> implementation, the default escape character is not DQUOTE, and it does not
> work if changed to DQUOTE.
> This means common csv is not rfc4180 compliant.
> Also, I'm puzzled by the fact that someone marked CSV-208 as fixed when
> nothing is fixed. Instead, it changed the behavior without documenting that
> the POSTGRESQL_CSV format does not even work out of the box with the default
> csv format that postgresql produces.
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