I am just wondering if there is any module on CPAN that is counterpart to built-in pack/unpack. That will offer compiled template (for fixed template), so that for performance critical bits, compiled pack/unpack could be used. I believe clojure/python has something similar.

 #hypothetical module 
 use Binary::Parser;

 $compiled_template = Binary::Parser->new( template => 'nCC C/a');
 my @result = $compiled_template->unpack($binary_data);
 
 # would be nice to have, like regex ? (0 or one)  at the end
 # it will match  C C/a 
 #                C C/a B8
 #                C C/a B8 f ...
 $optional_template = Binary::Parser->new( template => 'C C/a (B8 ff c
+c)?');
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