Have you looked at the FasterCSV docs?

http://fastercsv.rubyforge.org/classes/FasterCSV.html

Just parse the file and then write to it again with the new column.

-
Maurício Linhares
http://codeshooter.wordpress.com/ | http://twitter.com/mauriciojr



On Sat, Jun 13, 2009 at 1:07 PM, Wesley Chen<[email protected]> wrote:
> Hi, All,
> Suppose I have a CSV file, there is data in it.
>
>                  Column 1     Column2              Column 3       Column 4
> Row1        a                   b                          c
> Row2        a2                 b2                         c2
>
> You know, the column 4 is no data
> Now, I would like to insert data to Column 4, after save, the CSV file will
> be:
>
>
>                  Column 1     Column2              Column 3       Column 4
> Row1        a                   b
> c                    d
> Row2        a2                 b2
> c2                  d2
>
> How can I do that?
>
> Any suggestion would be quite appreciated.
> Thanks.
> Wesley Chen.
>
> >
>

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