Sure, that would very easy. Suppose you wanted to use the third field as hashkey. Then get_parsed_lines would be changed to: 

sub get_parsed_lines {
  my $file = shift;
  my $csv = Text::CSV_XS->new();
  my %hash;
  open my $in, '<', $file or die "Read failed: $!\n";
  while ( <$in> ) {
    $csv->parse( $_ ) or warn "Bad data: $_\n", next;
    my @row = $csv->fields();
    $hash{ $row[ 2 ] } = \@row;
  }
  close $in or die "Failed to close $file: $!\n";
  return \%hash;
}

[download]
More generally, you may want to use several fields, e.g., fields 0, 2 and 3. In this case, just change the last line in the loop to 
    $hash{ join( ',', @row[ 0, 2, 3] ) } = \@row;

[download]

the lowliest monk

In reply to Re^3: Question about text::csv_xs by tlm
in thread Question about text::csv_xs by Thargor

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