my $string = "a(b)cd(e)f"; 
my @parts = split /(?=.{5}$)/, $string';

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Why using an extended regex to use split where a simple match would do? 
local $_ = "a(b)cd(e)f"; 
my @parts = split /.{5}/g;

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local $_ = "a(b)cd(e)f"; 
my @parts = /.{5}/g;

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(Yes: of course this does not take care of the case when the given string has a length that is not a multiple of 5. But then I'm using unpack, as well as Perl Mouse does!)

Update: fixed a split that I had inadvertently left in -- see stroken out code above. Thanks to sauog's comment.

In reply to Re^2: Split a string into items of constant length by blazar
in thread Split a string into items of constant length by Anonymous Monk

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