From: Logan Capaldo <logancapaldo@...>
Date: 2006-01-14T10:36:08+09:00
Subject: Re: Range#member? Oddity

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On Jan 13, 2006, at 7:53 PM, gwtmp01@mac.com wrote:

> I understand the desire to generate a sequence of strings
> as defined by the current behavior of String#succ but I don't  
> understand
> why you would want to use a Range object as a shortcut to that  
> sequence.
> That particular sequence really has nothing to do with an interval
> or the ordering defined by String#<=>

As far as I can tell two classes(Well 4ish) have #succ methods.  
Integers and Strings. For all integers x, x has the property that  
x.succ > x is true.
There exists at least one String x for which x.succ > x is true, and  
at least one String x for which x.succ > x is false. So the question  
is, what is a Range? Is it a pair of end-points for checking between- 
ness? Is it the set of all values between those end points? If it is  
the second, I would argue that #to_a is meaningless for strings  
because there are end points for which the set would have infinite  
cardinality (i.e. ("a".."b"), the set of strings matched by /^a+\z/  
at least is in that "range".).
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