Like this? 

#!/usr/bin/perl
use strict;
use warnings;

my @array = qw/ c h e a p s l i d i n g w i n d o w /;

my $elements = @array;

for ( my $offset = 0; $offset < $elements; $offset++ ) { 
  for my $length ( 1 .. 3 ) { 
    next if $length != 3 and $offset >= 1;
        
    my @to_splice = @array;
    my @spliced = splice @to_splice, $offset, $length;
        
    print "@spliced\n";
  }
}

__END__

[download]
Output: 
$ perl 1141079.pl
c
c h
c h e
h e a
e a p
a p s
p s l
s l i
l i d
i d i
d i n
i n g
n g w
g w i
w i n
i n d
n d o
d o w
o w
w
$

[download]

Note that a "sliding window" is a Thing and if you do some research you'll probably find existing tools for implementing it in your program.

The way forward always starts with a minimal test.

In reply to Re^5: Sub-setting an Array by 1nickt
in thread Sub-setting an Array by kgherman

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