All:
While tracking down an interesting bug in some of my code, I discovered that while chomp can take a list such as an array, it doesn't work quite right on an AoA. Consider the following:

#!/usr/bin/perl -w
use strict;
my @Fields;
my @Array;
open (FILE,"file") or die "Can't open file\n";
while (<FILE>) {
  next if (/^#/);
  @fields = split "\t" , $_;
  next unless (@Fields == 7);
  push @Array , [ @Fields[0,3,6] ];
}
foreach my $foo (@fields) {
  print "$foo->[2]\n" if ($foo->[2] != 3);
}
[download]

You are confused as to why the code won't work (scratching head) - oh, I see my mistake - there is a trailing newline at the end - let me just get rid of it.

  push @Array , [ @Fields[0,3,6] ];
}
chomp @Array;
foreach my $foo (@fields) {
  print "$foo->[2]\n" if ($foo->[2] != 3);
}
[download]

Now it still doesn't work - this time you are getting some error about not being able to use a stringified array as a reference with strict enforced.

you remove the chomp as is and you put it back in the code that builds the array

while (<FILE>) {
  next if (/^#/);
  @fields = split "\t" , $_;
  next unless (@Fields == 7);
  chomp $Fields[6];
  push @Array , [ @Fields[0,3,6] ];
}
[download]

You are happy your code is now working, but you are sad that you have to do it THAT way.

so friendly monks - is there a way to chomp an AoA similar to:

chomp @Array;
[download]

Thanks in advance - L~R

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