Building on what Zaxo said about correct CSV quoting of double-quotes, you might as well filter the CSV-file before you process it with Text::CSV.
the following regex, using zero-width look-ahead/-behind assertions, works quite well (with one flaw): 

(?<![,])"(?![,])

[download]
A little test: 
#!/usr/bin/env perl
my $test = '""crosby"","stills","nash","and sometimes "young""';
$test =~ s/(?<![,])"(?![,])/""/g;
print $test, "\n";
$test = '"som"ething","sil"ly","quo"ted"';
$test =~ s/(?<![,])"(?![,])/""/g;
print $test, "\n";
__END__
""""crosby""","stills","nash","and sometimes ""young""""
""som""ething","sil""ly","quo""ted""

[download]
The flaw, as you might've already seen, is that the look-ahead/behind assertions recognize the start and end of the line as 'not comma', and therefore substitute the leading and the tailing double-quote too. If your data is otherwise well-formed, all you have to do, is add a second filter: 
$test =~ s/^"(.*)"$/$1/g;

[download]

regards,
tomte

Hlade's Law:

If you have a difficult task, give it to a lazy person --
they will find an easier way to do it.

In reply to Re: Re: CSV and regex mixups by Tomte
in thread CSV and regex mixups by cidaris

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