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I had need of this recently, but the syntax is overly complicated. The use of code refs is unnecessary.
{ my @nums = (0..9,'a'..'z','A'..'Z'); my %nums = map { $nums[$_] => $_ } 0..$#nums; sub to_base { my $base = shift; my $number = shift; return $nums[0] if $number == 0; my $rep = ""; # this will be the end value. while( $number > 0 ) { $rep = $nums[$number % $base] . $rep; $number = int( $number / $base ); } return $rep; } sub fr_base { my $base = shift; my $rep = shift; my $number = 0; for( $rep =~ /./g ) { $number *= $base; $number += $nums{$_}; } return $number; } }

You examples becomes

my $UniqueID = to_base( 62, $$ ) . to_base( 62, time );
print to_base( 16, 28 );

If you need your original syntax for some reason, just add

sub GenerateBase { my $base = shift; return ( sub { to_base( $base, $_[0] ) }, sub { fr_base( $base, $_[0] ) }, ); }

Then the user has the choice of syntax at no cost.


In reply to Re: Base Conversion Utility by ikegami
in thread Base Conversion Utility by Adam

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    [1nickt]: \my %foo = { bar => 1 }; say $foo{bar};
    [Corion]: 1nickt: Would be great, especially for naming parameters in @_.
    [Corion]: When you pass an arrayref, you get to treat it like a local array. But then, I'm cautious with the experimental features, because just when I thought function signatures were a set thing, there is a proposal to use sub [ $foo, $bar ] { ... } to ...
    [Corion]: ... declare the parameters, instead of the more common sub ($foo, $bar) { ... }

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