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Home/ Questions/Q 1928840
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Editorial Team
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Editorial Team
Asked: May 17, 20262026-05-17T07:01:57+00:00 2026-05-17T07:01:57+00:00

I am using Text::CSV to parse a csv file. Not all lines can be

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I am using Text::CSV to parse a csv file. Not all lines can be parsed, because of some bad characters.
The Text::CSV documentation says:

Allowable characters within a CSV field include 0x09 (tab) and the inclusive range of 0x20 (space) through 0x7E (tilde).

How can I filter out as easy as possible any not-allowed characters?

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  1. Editorial Team
    Editorial Team
    2026-05-17T07:01:58+00:00Added an answer on May 17, 2026 at 7:01 am

    Instead of filtering out the “bad” characters, you probably want to use the binary flag to tell Text::CSV to stop enforcing its ASCII-only rule:

    my $csv = Text::CSV->new ({ binary => 1 });
    

    If you’re trying to read a file that’s in a non-ASCII character set (e.g. Latin-1 or UTF-8), you should look at the Text::CSV::Encoded module.

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