From: "Hal E. Fulton" <hal9000@...>
Date: 2003-07-18T00:38:18+09:00
Subject: Re: Keyword "with"

----- Original Message ----- 
From: "Anders Borch" <spam@deck.dk>
Newsgroups: comp.lang.ruby
To: "ruby-talk ML" <ruby-talk@ruby-lang.org>
Sent: Thursday, July 17, 2003 6:15 AM
Subject: Re: Keyword "with"


> 
> def loadpp(l)
>    s = ''
>    f = File.new(l,'r')
>    f.each_line do |line|
>      s += line.gsub(/(\w)\+\+)/,'\1=\1.succ') + "\n"
>    end
>    eval(s)
> end

I haven't played with this at all... but let me 
remind you that the ++ operator comes in both
pre and post forms.

Until these code fragments both work, I'd say
you haven't actually implemented it, even as a
preprocessor kind of thing:

  x = 5
  y = x++
  puts y       # 5

  y = ++x 
  puts y       # 6

Cheers,
Hal

--
Hal Fulton
hal9000@hypermetrics.com