From: Ara.T.Howard@...
Date: 2004-09-04T02:35:16+09:00
Subject: Re: autochomp?

On Fri, 3 Sep 2004, Robert Klemme wrote:

>
> "Kristof Bastiaensen" <kristof@vleeuwen.org> schrieb im Newsbeitrag
> news:pan.2004.09.02.20.13.44.101750@vleeuwen.org...
>> Hi,
>>
>> On Thu, 02 Sep 2004 19:18:10 +0200, Robert Klemme wrote:
>>
>>>
>>> "Martin DeMello" <martindemello@yahoo.com> schrieb im Newsbeitrag
>>> news:idIZc.301315$J06.4478@pd7tw2no...
>>>> [quoted text muted]
>>>
>>> Not AFAIK.  You can do
>>>
>>> content = IO.readlines(file).each {|l| l.chomp!}
>>>
>>> or (more efficient)
>>>
>>> content = File.open(file) {|io| io.inject([]) {|ar,line| line.chomp!; ar
>>> << line} }
>>>
>>
>> I think in this case the first is more efficient than the second.
>> Since chomp! modifies the object inplace, no object gets created.
>
> ???  Please read again.  The first is less efficient because it iterates
> through the lines of the file twice and both use inplace modification
> (#chomp!).

what's wrong with IO.foreach?

   lines = []
   IO.foreach(file){|line| lines << line.chomp!}

or if you have to have one line

   IO.foreach(file){|line| (lines||=[]) << line.chomp!}

short, effecient, already built-in - what's not to like ;-)

i like dave's idea of adding traits to ruby though, if we start now maybe one
day ruby will be as good as perl6.  i hear it's almost done now!

-a
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