From: "Wayne E. Seguin" <wayneeseguin@...>
Date: 2007-09-21T10:40:27+09:00
Subject: Re: I am new to Ruby and I could use some expert advice as to how I can make this code run faster.

--Apple-Mail-23--569246641
Content-Transfer-Encoding: 7bit
Content-Type: text/plain;
	charset=US-ASCII;
	delsp=yes;
	format=flowed

On Sep 20, 2007, at 18:05 , Ruby Maniac wrote:
> I am new to Ruby and I could use some expert advice as to how I can
> make this code run faster.
>
> def scramble(fname)
>     f = File.new(fname, "rb")
>     _fname = fname + ".scrambled"
>     begin
>         File.exist?(_fname) if File.delete(_fname)
>     rescue
>     end
>     ff = File.new(_fname, "wb+")
>     for l in f
>         l.each_byte{|c| ff.write((c | 0x80).chr) }
>     end
>     f.close()
>     ff.close()
> end

One thing that you should do is get rid of that rescue block, that  
*should speed it up some:

- begin
-        File.exist?(_fname) if File.delete(_fname)
-  rescue
-  end
+ File.delete(_fname) if File.exist?

   ~Wayne

s///g
Wayne E. Seguin
Sr. Systems Architect & Systems Administrator


--Apple-Mail-23--569246641--