From: vsv <gm.vlkv@...>
Date: 2006-03-29T16:28:41+09:00
Subject: Range#to_a, each - why inconsistent?

Could someone explain me, please, why Range with one element is
iterated inconsistently when this element is empty string:

$ irb --simple-prompt
>> ('a'..'a').to_a
=> ["a"]
>> (1..1).to_a
=> [1]
## but:
>> ("".."").to_a
=> []
>>  ("".."").each{|s| puts 'Inside'}
=> ""..""
Why to_a returns empty [] and each block never executed?
Is it bug or feature?
Any reasonable explanation?

thanks
Sergey