comment on

In that case you don't want a regex at all. Use substr.

use strict;
use warnings;

my $str = do {local $/; <DATA>};
$str =~ s/\s+//g;
my $len = length $str;

for (my $width = 5; $width; --$width) {
  for (0..($len - $width)) {
    print substr ($str, $_, $width) . "\n";
  }
}

__DATA__
ABCDEFGHIJK
[download]

ABCDE
BCDEF
CDEFG
DEFGH
EFGHI
FGHIJ
GHIJK
ABCD
BCDE
CDEF
DEFG
EFGH
FGHI
GHIJ
HIJK
ABC
BCD
CDE
DEF
EFG
FGH
GHI
HIJ
IJK
AB
BC
CD
DE
EF
FG
GH
HI
IJ
JK
A
B
C
D
E
F
G
H
I
J
K
[download]

Perl is Huffman encoded by design.

In reply to Re^3: Capture Lookahead by GrandFather
in thread Capture Lookahead by Anonymous Monk

Are you posting in the right place? Check out Where do I post X? to know for sure.
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
Want more info? How to link or How to display code and escape characters are good places to start.


Pathologically Eclectic Rubbish Lister
	PerlMonks