This should do the trick - Its only tested on your string though... 
#!/usr/bin/perl

use strict;
use warnings;

my $string = "ABC[GHI]XYZ";
my @array;

splitstring($string);

push @array, split//, $string;

print "$_ " for sort @array;

sub splitstring
{
    return unless ( $string =~ /.*\[\w+\].*/ );
    if ( $string =~ /.*(\[(\w+)\]).*/ )
    {
        my $remove = $1;
        my $str    = $2;
        print "rem = $remove\n str = $str\n";
        push @array, $str;
        $string =~ s/\Q$remove\E//;
    }
    splitstring($string);
}

[download]
UPDATE
I substututed the string with [987]ABC[GHI]XYZ[dfg] and that works as well.

regards

Ted
--
"That which we persist in doing becomes easier, not that the task itself has become easier, but that our ability to perform it has improved."
  --Ralph Waldo Emerson

In reply to Re: Complex Splitting by tcf03
in thread Complex Splitting by neversaint

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