From: dblack@...
Date: 2002-12-09T01:47:52+09:00
Subject: Re: elseif?

Hi --

On Sun, 8 Dec 2002 dblack@candle.superlink.net wrote:

> Hi --
>
> On Sun, 8 Dec 2002 nobu.nokada@softhome.net wrote:
>
> > Hi,
> >
> > At Sun, 8 Dec 2002 06:18:52 +0900,
> > Joel VanderWerf wrote:
> > > x = 1.5
> > >
> >   case
> > >    when x < 0;             puts "x < 0"
> > >    when 0 <= x && x < 1;   puts "x in interval [0,1)"
> > >    when 1 <= x && x < 2;   puts "x in interval [1,2)"
> > >    when 2 <= x;            puts "x >= 2"
> > > end
> >
> > If no expression after "case", "when" clause evaled as true
> > will be executed.
>
> Yet more proof of my theory, which is that as you work on a problem in
> Ruby, and it gets better and more idiomatic, code disappears from the
> screen.

Oh, and in case that wasn't enough proof:

  puts case
    when x < 0;            "x < 0"
    when 0 <= x && x < 1;  "x in interval [0,1)"
    when 1 <= x && x < 2;  "x in interval [1,2)"
    when 2 <= x;           "x >= 2"
  end


David

-- 
David Alan Black
home: dblack@candle.superlink.net
work: blackdav@shu.edu
Web:  http://pirate.shu.edu/~blackdav