From: Shannon Fang <xrfang@...>
Date: 2002-12-04T00:26:17+09:00
Subject: Re: Conditional block operations

file.grep? I checked that grep is a method of Enumerable. is it suitable for 
file? if so, it is a class method or instance method?

Tks.
Shannon

>From: Emmanuel Touzery <emmanuel.touzery@wanadoo.fr>
>Reply-To: ruby-talk@ruby-lang.org
>To: ruby-talk@ruby-lang.org (ruby-talk ML)
>Subject: Re: Conditional block operations
>Date: Tue, 3 Dec 2002 23:44:50 +0900
>
>Emmanuel Touzery wrote:
>
>>Shannon Fang wrote:
>>
>>>
>>>I think for this case, the easist way might be
>>>
>>>file.each do |line|
>>>   a, b = line.split(pattern) if line !~ /^\s*$/
>>>end
>>
>>
>>grep could help, unfortunately I don't know if it can be negated (eg "all 
>>but the matches").
>>
>>emmanuel
>
>actually \S is "non whitespace character", so this is ok:
>
>file.grep /^\S+$/ do |line|
>    a, b = line.split pattern
>end
>
>emmanuel
>--
>
>"If someone breaks into my house and steals my CDs,
>who calls the cops, me or the music industry?
>If it's me, then that's my property." 	--Ruben Safir


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