#!/usr/bin/env perl

use strict;
use warnings;
use open OUT => qw{:encoding(UTF-8) :std};

my ($en_dash, $em_dash) = ("\x{2013}", "\N{EM DASH}");
my $str = "a-b${en_dash}c${em_dash}d";
my $re = qr{[\N{EN DASH}\x{2014}-]};
print "Original string: $str\n";
print "Parts separated by some dash:\n";
print "$_\n" for split $re, $str;

##</code><code>##

Original string: a-b–c—d
Parts separated by some dash:
a
b
c
d

##</code><code>##

$ ./pm_11137036_re_alt_dashes.pl | cat -vet
Original string: a-bM-bM-^@M-^ScM-bM-^@M-^Td$
Parts separated by some dash:$
a$
b$
c$
d$