On Wed, 2 Jan 2013 16:05:25 +0530
Neeraj <neeraj.seh...@gmail.com> wrote:
> Why do i have white-space between words when printing array while not
> getting white-space when printing individual element.
perlfaq explains this - from perlfaq5:
Why do I get weird spaces when I print an array of lines?
(contributed by brian d foy)
If you are seeing spaces between the elements of your array when
you print the array, you are probably interpolating the array in
double quotes:
my @animals = qw(camel llama alpaca vicuna);
print "animals are: @animals\n";
It's the double quotes, not the "print", doing this. Whenever
you interpolate an array in a double quote context, Perl joins
the elements with spaces (or whatever is in $", which is a space
by default):
animals are: camel llama alpaca vicuna
This is different than printing the array without the
interpolation:
my @animals = qw(camel llama alpaca vicuna);
print "animals are: ", @animals, "\n";
Now the output doesn't have the spaces between the elements
because the elements of @animals simply become part of the list
to "print":
animals are: camelllamaalpacavicuna
You might notice this when each of the elements of @array end
with a newline. You expect to print one element per line, but
notice that every line after the first is indented:
this is a line
this is another line
this is the third line
That extra space comes from the interpolation of the array. If
you don't want to put anything between your array elements,
don't use the array in double quotes. You can send it to print
without them:
print @lines;
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