From: Zach Dennis <zdennis@...>
Date: 2004-09-08T23:18:16+09:00
Subject: Re: Order of Operations Question

ts wrote:

>>>>>>"Z" == Zach Dennis <zdennis@mktec.com> writes:
>>>>>>            
>>>>>>
>
>Z> Zach Dennis wrote:
>
>  
>
>>>dir = Dir.new( d ) if( File.directory?( d=$*.shift ) )
>>>      
>>>
>
>Z> Please ignore...i realized I was passing in a nonexistent directory.
>
> I hope that you have seen that ruby will call the method #d in Dir.new()
> if `d' was not previously seen as a local variable
>
>
>Guy Decoux
>
>  
>
Yeah, I learned that the hard way ;), I am initializing d to nil just 
above it....but while we're on this topic I have another order of 
operations question.....It involves the && in a conditional statement

d = nil
dir = Dir.new( d ) if( $*.length > 0 && File.directory?( d=$*.shift ) )

I cannot get this statement to work either, and I have tried flip 
flopping the conditions around, but it always complains when I don't 
pass in a command line argument. If $* is an empty array shouldn't Ruby 
test the first condition and see that it is false, then quit and do not 
test the second condition?

Thanks,

Zach