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https://issues.apache.org/jira/browse/IO-577?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16483121#comment-16483121
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Sebb commented on IO-577:
-------------------------

AFAICT it does not quite address CSV-222, because it will strip out characters 
from anywhere, rather than outside tokens.
However it may perhaps solve the OPs issue.

Also, the class has wider application than just CSV. Seems to me it belongs in 
IO or TEXT.

I'm not sure that it matters that the collection may be modified by the caller 
of CharacterSetFilterReader.
The caller can provide an immutable Set. Might be useful to provide input as an 
array of ints.

> Add readers to filter out given characters
> ------------------------------------------
>
>                 Key: IO-577
>                 URL: https://issues.apache.org/jira/browse/IO-577
>             Project: Commons IO
>          Issue Type: New Feature
>          Components: Filters
>            Reporter: Gary Gregory
>            Priority: Major
>         Attachments: commons-io-577.patch
>
>
> Add readers to filter out given characters,  handy to remove known junk 
> characters from CSV files for example. Please see attached.



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