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( [id://3333]=superdoc: print w/replies, xml ) Need Help??
at least one error in previous code ... while condition is wrong.
use strict; use warnings; my @FILES; open $FILES[0], '<', 'file1' or die; open $FILES[1], '<', 'file2' or die; my @w = map scalar <$_>, @FILES; my $empty = "blank line\n"; my %map = ( -1 => [ 0 ], 1 => [ 1 ], 0 => [ 0, 1 ], ); while (defined $w[0] && defined $w[1]) { my $cmp = $w[0] cmp $w[1]; print $cmp ? $empty : $w[0]; @w[ @{$map{$cmp}} ] = map scalar <$_>, @FILES[ @{$map{$cmp}} ]; } # Leftover lines in either file? print map $empty, map <$_>, @FILES;

In reply to Re^3: Loop through 2 files in parallel by happy.barney
in thread Loop through 2 files in parallel by Anonymous Monk

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