From: Chad Fowler <chadfowler@...>
Date: 2004-11-06T23:25:14+09:00
Subject: Re: Succ distance between two strings

On Sat, 6 Nov 2004 23:07:59 +0900, David A. Black <dblack@wobblini.net> wrote:
> Hi --
> 
> 
> 
> On Sat, 6 Nov 2004, trans.  (T. Onoma) wrote:
> 
> >
> > Is there an efficient way to calculate the "succ distance" between two strings
> > (without iterating over each succession)? Examples:
> >
> >   'a'..'a'    0
> >   'a'..'b'    1
> >   'a'..'z'    25
> >   'a'..'aa'   26
> 
> 'a'...'aa'.to_a.size   # would be one way

For the first 3 examples you can also treat them as characters and do:

?a - ?a  #=> 0
?b - ?a #=> 1
?z - ?a #=> 25

Not exactly what you want though.

Chad Fowler
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