From: Wesley J Landaker <wjl@...>
Date: 2003-12-05T10:20:17+09:00
Subject: Re: Generalized break?

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On Thursday 04 December 2003 5:32 pm, Ara.T.Howard wrote:
> > 2. I have a mild dislike for the idiom if $0 =3D=3D __FILE__ (lines)
> > end -- because I always indent inside an if, and I don't want to
> > indent, and I really just want to say:  break if $0 !=3D __FILE__
>
> agreed.
>
> how about something like
>
> __TEST__
>
> for this?

Ooohh, I like that! =3D)

(Hmmm... can we implement it in ruby as is? ... using the eval hack=20
posted earlier in this thread sort of works, although this is a bit=20
ugly):

=2D-- test.rb ---
#!/usr/bin/ruby

def __TEST__(file)
  if $0 =3D=3D file
    eval DATA.readlines.join("\n"), binding, file
  end
end


=2D-- demo.rb ---
#!/usr/bin/ruby

#!/usr/bin/ruby
require 'test'

puts "1"

__TEST__(__FILE__)
__END__

puts "2"


Then:
$ ./demo.rb
1
2
$ irb
irb(main):001:0> require 'demo'
1
=3D> true

Not sure how to get around passing __FILE__ in, or having __END__ there=20
as well...

=2D-=20
Wesley J. Landaker - wjl@icecavern.net
OpenPGP FP: 4135 2A3B 4726 ACC5 9094  0097 F0A9 8A4C 4CD6 E3D2


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