From: Dale Martenson <dale.martenson@...>
Date: 2006-06-20T05:04:50+09:00
Subject: Re: How to do this debugging?

Philip Rhoades wrote:
> People,
> 
> I usually pipe my data file through my ruby script with:
> 
> 	cat parsefile | t1.rb
> 
> but some obscure problems have been tricky to find - if I use:
> 
> 	ruby -r debug t1.rb
> 
> - how do I pipe the parsefile in ?
> 

If you redefine $stdin, you can get this to work. Enter the debugger 
with:

        ruby -r debug t1.rb

Now redefine $stdin as:

        $stdin = IO.popen("cat parsefile")

You can now start debugging. All input will be read from the result of 
the IO.popen call.

--Dale Martenson




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