Reverse Two Consecutive Lines
- by thebourneid
I have this part of a code for editing cue sheets and I don't know how to reverse two consecutive lines if found:
/^TITLE.*?"$/
/^PERFORMER.*?"$/
to reverse to
/^PERFORMER.*?"$/
/^TITLE.*?"$/
What would it be the solution in my case?
use strict;
use warnings;
use File::Find;
use Tie::File;
my $dir_target = 'test';
find(\&c, $dir_target);
sub c {
/\.cue$/ or return;
my $fn = $File::Find::name;
tie my @lines, 'Tie::File', $fn or die "could not tie file: $!";
for (my $i = 0; $i < @lines; $i++) {
if ($lines[$i] =~ /^REM (DATE|GENRE|REPLAYGAIN).*?$/) {
splice(@lines, $i, 3);
}
if ($lines[$i] =~ /^\s+REPLAYGAIN.*?$/) {
splice(@lines, $i, 1);
}
}
untie @lines;
}
