print join ', ', $string =~ /([CSH][CSHL]+[CSH])/g;
matches at least 3 characters and thus should be print join ', ', $string =~ /([CSH][CSHL]*[CSH])/g; (as you mention somewhere else in this thread).

-- Hofmator

In reply to Re^2: Regexp: How to match in middle but not the ends? by Hofmator
in thread Regexp: How to match in middle but not the ends? by cormanaz

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