You need to use double quotes to interpolate the character in $cgj:

my $cgj = "\N{COMBINING GRAPHEME JOINER}";
my $cgj_re = qr/$cgj/xms;

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or just include it directly in the cached regex.

my $cgj_re = qr/\N{COMBINING GRAPHEME JOINER}/xms;

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In reply to Re: stuck with a \N{CHAR NAME} problem by wind
in thread stuck with a \N{CHAR NAME} problem by amir_e_a

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