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

by mr_mischief (Monsignor)
on Jun 30, 2003 at 23:17 UTC ( #270361=note: print w/replies, xml ) Need Help??


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

Not as short but a bit clearer (to me, anyway) than the others I've seen:
sub b26_to_b10 { my @digits = reverse split //, shift; my $i = 1; my $result = 0; for ( @digits ) { $result += ( ord(lc($_)) - ord('a') + 1 ) * $i; $i *= 26; } return $result; }


Christopher E. Stith

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