Hello monks,

I was using File::Slurp and I noticed newlines were constantly being added to the end of every line after multiple reads/writes of the same file. The module appears (to me) to be buggy in Windows.

use strict;
use warnings;

use File::Slurp;
use Data::Dump qw{dump};

undef $/;

my $file_slurp = read_file('file');

open my $FILE, '<', 'file' or die $!;
my $normal = <$FILE>;
close $FILE;

$normal eq $file_slurp ? print "Yep.\n" : print "Nope.\n";

dump($file_slurp);
dump($normal);

[download]

file:

Line
Line2
Line3

[download]

output:

Nope.
"Line\r\nLine2\r\nLine3\r\n\r\n"
"Line\nLine2\nLine3\n\n"

[download]

I undef $/ here because it's the only thing I could think to try; File::Slurp mentions using it in passing, but it doesn't help. Putting the "normal" version in its own block and using local on $/ has the same result. I haven't tested this in Linux, but the difference between line terminators in Windows and Linux (and everything else) strikes me as a possible source of error here.

Two questions:

1) Can anyone confirm this behavior? Is it normal? I know Perl6 will have slurp; is there some nuance to slurp which causes this to be expected behavior?

2) Is it worth bothering to use a module to slurp files (in Perl5)? It's as simple as local-izing $/ and reading into a scalar. If I'm really feeling lazy I can throw it into my own slurp sub. Will Perl6's slurp have any more to offer?

In reply to File::Slurp bug? Should I bother? by chester

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