From: Brian Candler <b.candler@...>
Date: 2009-05-17T19:48:21+09:00
Subject: Re: $0 is truncated

Nobuyoshi Nakada wrote:
> Hi,
> 
> At Sun, 17 May 2009 05:36:39 +0900,
> Brian Candler wrote in [ruby-talk:336729]:
>> I don't mind whether $0 is frozen. Actually, I wrote $0 = ... 
>> originally, and only changed it to $0.replace(...) as a workaround.
> 
> You can find a hint in ext/extmk.rb.
> 
>   $progname = $0
>   alias $PROGRAM_NAME $0
>   alias $0 $progname
> 
>   trace_var(:$0) {|val| $PROGRAM_NAME = val} # update for ps

Wow, that's a trick I wouldn't have thought of in a hundred years :-) 
Thank you.
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