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Re: Alpha base-26 to base-10...

by Aristotle (Chancellor)
on Jul 01, 2003 at 09:58 UTC ( #270430=note: print w/replies, xml ) Need Help??


in reply to Alpha base-26 to base-10...

Another take.
use strict; use warnings; use constant OFFS => 1 - ord 'a'; use constant BASE => ord("z") - ord("a") + 1; sub alphabetic_to_base10 { local $_ = shift; my $num = 0; $num = ($num * BASE) + (OFFS + ord $_) for /./g; return $num; } printf "$_: %d\n", alphabetic_to_base10($_) for qw[a z aa az ba zz aaa + zba]; __END__ a: 1 z: 26 aa: 27 az: 52 ba: 53 zz: 702 aaa: 703 zba: 17629

Makeshifts last the longest.

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