From: "Ara.T.Howard" <Ara.T.Howard@...>
Date: 2005-07-01T00:11:46+09:00
Subject: Re: ruby -dn; levels for $DEBUG

On Thu, 30 Jun 2005, Gavin Kistner wrote:

> I would find it convenient if:
>   ruby -d foo.rb
> set $DEBUG to true, while
>  ruby -d1 foo.rb
> set $DEBUG to 1
>  ruby -d3 foo.rb
> set $DEBUG to 3, and possibly even
>  ruby -dALL foo.rb
> set $DEBUG to "ALL". (I'm willing to give up that last, though.)
>
> This would break any existing code that did something silly like:
>   if $DEBUG == true
> instead of
>  if $DEBUG
> but would provide the ability to set verbosity level for debugging.
>
> In debugging JavaScript in HTML, I wrote my own DebugOut function which took 
> a string and a verbosity level, and by changing one numeric at the top of the 
> file could easily see more or less verbose traces of the code execution. It's 
> a poor substitute for a debugging IDE, but at the same time quite helpful.
>
> What do people think?

i just do this

   ~ > DEBUG=2 ruby a.rb

and in a.rb

   $DEBUG = Integer(ENV['DEBUG']) rescue true

hth.

-a
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