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$ perl -MO=Deparse,-p -e 'map chr hex, @code_points'
map(chr(hex($_)), @code_points);

$ perl -wMstrict -le 'sub foo {} foo "bar"'    # ok
$ perl -wMstrict -le 'sub foo {} foo("bar")'   # ok
...
    (Do you need to predeclare foo?)
syntax error at -e line 1, near "foo "bar""
Execution of -e aborted due to compilation errors.