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https://issues.apache.org/jira/browse/CSV-229?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Serge P. Nekoval updated CSV-229:
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Attachment: csv_bytes3.patch
> Allow byte position tracking in CSVParser
> -----------------------------------------
>
> Key: CSV-229
> URL: https://issues.apache.org/jira/browse/CSV-229
> Project: Commons CSV
> Issue Type: New Feature
> Components: Parser
> Reporter: Serge P. Nekoval
> Priority: Major
> Attachments: csv_bytes3.patch
>
>
> This is a patch which adds significant modifications to the
> ExtendedBufferedReader.
> The problem is that efficient CSV parsing requires *byte positioning*, not
> character positioning as currently provided.
> The cases where byte positioning is necessary:
> * Suspend/resume parsing
> * Pagination/split where a large CSV file is read in chunks using file
> positioning.
> I've found the ExtendedBufferedReader to be unable to manage bytes in its
> current state (relying on BufferedReader and characters), so instead I had to
> redesign/merge these two classes.
> This modification is what we use in our system, so I'm hoping to get it
> released (otherwise we have to deal with custom build of Commons CSV).
> Architecturally the solution might be incomplete, however it provides what I
> need - getBytePosition() from a CSVParser. The entire chain only works if you
> provide a Reader AND a charset!
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