Using a zero width, negative look behind assertion will get you want you want. Read at perlre. 
use Data::Dumper;
use strict;

my $str = 'AAA~BB~CCCCC~DDD~';

my @a = split /(?<=~)/, $str;

print Dumper(\@a);

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In reply to Re: regex replacement help by wind
in thread regex replacement help by mkenney

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