I guess that's some inexactness in the documentation of Tie::File. Looking at the source code, there is the following code, which sets/forces $/ to \r\n:

sub _default_recsep {
  my $recsep = $/;
  if ($^O eq 'MSWin32') {       # Dos too?
    # Windows users expect files to be terminated with \r\n
    # But $/ is set to \n instead
    # Note that this also transforms \n\n into \r\n\r\n.
    # That is a feature.
    $recsep =~ s/\n/\r\n/g;
  }
  $recsep;
}

[download]

So, you'll have to read the first few bytes (or up to the first \n), guess the line ending from that, and then use the recsep option to force the line ending.

In reply to Re^5: Can't get Tie::File working by Corion
in thread Can't get Tie::File working by rovf

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