in reply to Re^3: Get record separator of a file
in thread Get record separator of a file
Now we're getting somewhere (I think). You should be able to take advantage of Perl's :crlf IO layer to handle the problem for you. I'll let you test this yourself I've tested this, and here is how I think it would work out.
First, Tie::File seems to be "layers" unaware, which is fine, except that you'll have to open the file explicitly, and close it again when you're done, rather than letting Tie::File handle those operations. This gives you control over what layers are applied to the file handle.
use strict; use warnings; use Tie::File; use Scalar::Util qw( weaken ); open my $fh, '+<:crlf', 'filename.ext' or die $!; my @array; my $t = tie @array, 'Tie::File', $fh; weaken $t; # tie holds its own ref. We don't want a mem leak. # Work, work, work... untie @array; close $fh or die $!;
The relevant explanation of ':crlf' from the POD is: " On read converts pairs of CR,LF to a single "\n" newline character. On write converts each "\n" to a CR,LF pair." Since this happens behind the scenes, it should play nice with Tie::File, but I would test on some copies of the files first to be sure.
Updated: Added weaken to eliminate a potential memory leak, since tie also holds a ref to its own object.
Dave
|
---|
Replies are listed 'Best First'. | |
---|---|
[SOLVED]Re^5: Get record separator of a file
by karlgoethebier (Abbot) on Nov 14, 2012 at 13:38 UTC | |
Re^5: Get record separator of a file
by karlgoethebier (Abbot) on Nov 14, 2012 at 19:00 UTC |