Close, but not sure OP wants this (from mwah's example):

687551.pl syntax OK
perl  687551.pl
||
||
||
||
||
||
||
||
|123-UK 123-UK 123-UK|
||

[download]

Whereas:

my $txt = '-UK 123 123-UK 123-UK 123-UK abc-oops!';
print "|$1|\n" while $txt =~ /((?:\d+-UK\s))/g;

[download]

produces

perl  687551.pl
|123-UK |
|123-UK |
|123-UK |

[download]

In reply to Re^2: Regular expression * vs + by ww
in thread Regular expression * vs + by b_e_n_82

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