Changing upper to ascii and using your string, I get: 

$ perl -Mstrict -Mwarnings -E '
my $x = q{çe quil Y a Yå};
$x =~ s/([[:^ascii:]])/unpack q{H2}, $1/eg;
say $x;
'
c383c2a7e quil Y a Yc383c2a5

[download]

Check that you didn't make a typo when entering your code. If you are still having problems, please post your code - as it is, I can't reproduce your problem.

To wrap the codes in < and >, or any other characters, you can just concatenate the characters at the beginning and end of the hex code: 

$ perl -Mstrict -Mwarnings -E '
my $x = q{çe quil Y a Yå};
$x =~ s/([[:^ascii:]])/q{<} . unpack(q{H2}, $1) . q{>}/eg;
say $x;
'
<c3><83><c2><a7>e quil Y a Y<c3><83><c2><a5>

[download]

-- Ken

In reply to Re^3: hex in regexp by kcott
in thread hex in regexp by shamanoff

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