Why recurse when you can iterate instead? :) 

use List::Util qw(reduce);
sub compose {
    reduce { sub { $b->($a->(@_)) } } @_;
}

[download]

Of course, that doesn't actually work because Perl's reduce uses global variables ($a,$b). But, we can roll our own: 

sub compose {
    my $c = shift;
    foreach my $s (@_) {
        my $o = $c;
        $c = sub { $s->($o->(@_)) }
    }
    $c
}

[download]

In reply to Re^5: Specializing Functions with Currying by jryan
in thread Specializing Functions with Currying by FoxtrotUniform

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