From: Luigi Ballabio <luigi.ballabio@...>
Date: 2001-05-07T16:21:46+09:00
Subject: [ruby-talk:14755] Re: ranges


Hi,

At 10:07 AM 5/5/01 +0900, Guy N. Hurst wrote:

>Joseph McDonald wrote:
> >
> > Hi,
> >
> > Is there a way to construct an array out of a range such
> > as: (0..9,"A".."Z","-") ?
> >
> > This works, but I'm sure it's hokey:
> >
> >     arr = Array.new
> >     (0..9).to_a.each do |a|
> >       arr << a
> >     end
> >     ("A".."Z").to_a.each do |a|
> >       arr << a
> >     end
> >     arr << "-"
> >
>
>Try:
>
>arr = (0..9).to_a + ('A'..'Z').to_a + ['-']
>
>OR this:
>
>def foo(*args)
>   arr = []
>   args.each{|x| arr += x.to_a }
>   arr
>end
>
>arr = foo(0..9,'A'..'Z','-')

Nope. If you look at Joseph's code, you'll see the result he meant was
('0A-','0B-',...,''0Z-','1A-',....)

Bye,
         Luigi