http://rousse.pm.org/book/cookbook/ch01_16.htm
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From Mastering Regular Expressions.
sub parse_csv {
my $text = shift; # record containing comma-separated values
my @new = ();
push(@new, $+) while $text =~ m{
# the first part groups the phrase inside the quotes.
# see explanation of this pattern in MRE
"([^\"\\]*(?:\\.[^\"\\]*)*)",?
| ([^,]+),?
| ,
}gx;
push(@new, undef) if substr($text, -1,1) eq ',';
return @new; # list of values that were comma-separated
}
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