Grandfather - his original post had none of that. He must have edited it later.
Solution code - requires Text::CSV.
use Text::CSV;
use strict;
use warnings;
my ($in, $inhandle, $out, $outhandle, $csv, @fields, $prefix);
$in = 'test.csv';
open ($inhandle, "<$in") || die;
$out = 'testout.csv';
open ($outhandle, ">$out") || die;
$csv = Text::CSV->new();
while (<$inhandle>) {
chomp;
$csv->parse($_);
@fields = $csv->fields();
if ($fields[0] =~ s/\(([A-Z])\)\-\(([A-Z])\)$//) {
$prefix = $fields[0];
for ($1..$2) {
$fields[0] = "$prefix($_)";
$csv->combine(@fields);
print $outhandle $csv->string() . "\n";
}
}
else {
print $outhandle "$_\n";
}
}
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