From: "Guy N. Hurst" <gnhurst@...>
Date: 2001-02-25T12:42:32+09:00
Subject: [ruby-talk:11510] Re: Sorting

Kevin Smith wrote:
> ...
> 
> This works:
> 
> strings = [ "Name 300", "Name 1", "Name 10",
> "Name 2" ]
> b = strings.sort do | a, b |
>         a.split <=> b.split
> end
> p strings
> p b
> 

But what about for this?

strings=["Name 100","Name 11","Name 10","Name 1",
"Name 101","Name 22","Name 200","Name 2"]

your code generates:
["Name 1", "Name 10", "Name 100", "Name 101", 
"Name 11", "Name 2", "Name 200", "Name 22"]


If I add "[1]to_i" after each split, then it does things better...

b = strings.sort do | a, b |
        a.split[1].to_i <=> b.split[1].to_i
end
p b

result:
["Name 1", "Name 2", "Name 10", "Name 11", 
"Name 22", "Name 100", "Name 101", "Name 200"]

Of course, this is assuming there is a second element in the array after the split, and 
that it is convertible to an integer.


Guy N. Hurst

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