Re^2: how to check for a word in a file and if found remove that line, the above line and the below line from the file.

in reply to Re: how to check for a word in a file and if found remove that line, the above line and the below line from the file.
in thread how to check for a word in a file and if found remove that line, the above line and the below line from the file.

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
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