[jira] [Resolved] (NIFI-6745) No possiblity to set empty string as escape character

["Pierre Villard (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/NIFI-6745?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Pierre Villard resolved NIFI-6745.
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    Resolution: Feedback Received

Apache NiFi 1.x is no longer maintained and no new release is planned on the 1.x release line. Marking as resolved as part of a cleanup operation. Please open a new one with an updated description if this is still relevant for NiFi 2.x.

> No possiblity to set empty string as escape character
> -----------------------------------------------------
>
>                 Key: NIFI-6745
>                 URL: https://issues.apache.org/jira/browse/NIFI-6745
>             Project: Apache NiFi
>          Issue Type: Bug
>          Components: Core Framework
>    Affects Versions: 1.9.2
>            Reporter: N
>            Priority: Trivial
>
> In a traditional csv parser like excel if you want to include a comma in a field you encapsulated it with quotes ("foo,bar") and if you need quotes between those quotes you add another pair of quotes before it ( "she said:""foo""" )
> however, in your csv parser there is another rule which says that '\' is a classic escape char and you can't disable it, this is a problematic rule because:
> If you have a csv which contains a JSON as a string inside one of his fields like (1,test,"\{""foo"":""bar""}") and you want to add a ' " ' inside it you need to add a ' \' before it(1,test,"\{""foo"":""b\""r""}") because you need to escape the " for the JSON parser, but in your csv parser this example will fail becuse it will be parsed to "\{""foo"":""b"r""}")" which is invalid ( the exemple sould become \{"foo":"b/"r"} ) .
> In order to fix this adding the optoin to disable the escape char in the csv parser will fix this problem.
> And by the way why is there an escape char in a csv parser any ways?



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