On Wed, 24 Apr 2002 07:05:53 GMT,
Yukihiro Matsumoto <matz / ruby-lang.org> wrote:
>|I agree with the preceding post:
>|
>|aString.succ.prev  = aString.prev.succ = aString
> 
> Unfortunately String#succ is not reversible operation since it's not
> one-to-one relation.
> 

Well, then we have two possibilities:
a) there is no String#prev
b) there is a STring#prev with a preference.

Tell me, folks: How do you feel about the square root?
Useful or not? How would you feel about a String#prev
with a well defined choice at ambiguous places?

s.