st4k, as rchiav stated and as I showed you earlier, you
probably don't want to store the newline characters in your
array. In my example using print join("\n",@out);
I demonstrated a way to manipulate the array (without
changing its contents) and printing the results each element
on a new line. By storing the data without newlines you
could also do something slightly different:
my @out = qw(one two three four five six seven eight nine);
my $i = 0;
foreach (@out) {
print "\$out[",$i++,"] = '$_'\n";
}
=output=
$out[0] = 'one'
$out[1] = 'two'
$out[2] = 'three'
$out[3] = 'four'
$out[4] = 'five'
$out[5] = 'six'
$out[6] = 'seven'
$out[7] = 'eight'
$out[8] = 'nine'
But if you had stored the newlines in the array, the last '
in each line would've been pushed to the next line by the
newline character stored in the array:
=output=
$out[0] = 'one
'
$out[1] = 'two
'
$out[2] = 'three
'
$out[3] = 'four
'
$out[4] = 'five
'
$out[5] = 'six
'
$out[6] = 'seven
'
$out[7] = 'eight
'
$out[8] = 'nine
'
You have more flexibility if you store only the data.
In your example @out = join "\n", @out;
you are destroying your array. Instead of the output above
you would get the following output using the same print
loop:
my @out = qw(one two three four five six seven eight nine);
@out = join "\n", @out;
my $i = 0;
foreach (@out) {
print "\$out[",$i++,"] = '$_'\n";
}
=output=
$out[0] = 'one
two
three
four
five
six
seven
eight
nine'
Instead of having 9 rows you now have only one row made up
of a string with interspersed newlines. As a rule, most
people don't print an array using print @array;
except when debugging.
Try playing around with the print loop above to test other
types of array manipulation. It will give you a better idea
of how your data is stored in the array structure.
--Jim
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