From: Mariano Kamp <mariano.kamp@...>
Date: 2006-06-05T23:55:59+09:00
Subject: Re: Directory.entries problems with while loops

Tait Pollard wrote:
> unknown wrote:
>> On Jun 5, 2006, at 8:57 AM, Tait Pollard wrote:
>> Show us some code and then we can help.
>>
>> cr
> 
> here is the code
> 
> c=File.dirname("directory.rb")
> direc=Dir.entries(c)
> b= Regexp.new(/tlb/)
> counter,counter1=0,0
> array=[]
> while(counter<direc.length)
>   if (direc[counter]=~b)
>     puts direc[counter]
>     array[counter1]=direc[counter]
>     counter=+1
>   end
>   counter=+1
> end
> 
> 
Hi Tait,

   did you look at Dir.glob 
(http://corelib.rubyonrails.org/classes/Dir.html#M000865)? I guess that 
would solve your problem in one line of code.

   Can't really tell without seeing test data, but I guess you could get 
rid of the infinite loop symptom by checking for <= instead of < in your 
loop or you can get rid of the cause by removing the first "counter+=1" 
line. It will be incremented anyway. Btw. there are better loop 
constructs with built-in counters, but for your case I would go with 
Dir.glob and forget about traversing the directories by hand.

Cheers,
Mariano