I was sure it would be easier with
splice but i falled in the 'modifying an array while iterating over it' pitfall..
To avoid a copied data I needed to undef some value and grep for defined values when printing the copy output.. anyway it works.
I have modified the DATA a little to be easier to follow
use strict;
use warnings;
my @lin = <DATA>;
map {
$lin[$_] and $lin[$_] =~/XXXXX/ ?
$_ == 0 ? splice @lin,0,2,undef,undef :
$_ == $#lin ? splice @lin,$_-1,2,undef,undef :
splice @lin,$_-1,3,undef,undef,undef :
1
} 0..$#lin;
print "$_" for grep {defined} @lin;
__DATA__
XXXXX
Aoooo
XXXXX is my name
Boooo
11111
22222
33333
Coooo
XXXXX is what I play
Doooo
44444
# OUTPUT
11111
22222
33333
44444
L*
There are no rules, there are no thumbs..
Reinvent the wheel, then learn The Wheel; may be one day you reinvent one of THE WHEELS.
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