getline parses a single line, but if you want to keep the original lines (so that you can determine the lines that appear in both files), then I don't think it is very useful to you. How about this (untested!)?: 

use strict;
use warnings;

use Text::CSV_XS;

my ( $h1, $h2 ) = map get_parsed_lines( $_ ), qw( file_1 file_2 );

my %keep =
  map +( $_ => $h1->{ $_ } ),
  grep exists $h2->{ $_ },
  keys %$h1;

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;
    $hash{ $_ } = [ $csv->fields() ];
  }
  close $in or die "Failed to close $file: $!\n";
  return \%hash;
}

[download]

the lowliest monk

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

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