SSCCE please... \s works for me. Are you sure you're not using the /a modifier or something like that?

perl -wMstrict -lE "qq/\N{NARROW NO-BREAK SPACE}/ =~ /\A\s\z/ and say 
+'OK' or die"
OK

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In reply to Re: Any good ways to handle NARROW NO-BREAK SPACE characters in regex in newer versions of Perl? by haukex
in thread Any good ways to handle NARROW NO-BREAK SPACE characters in regex in newer versions of Perl? by nysus

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