From: "W. James" <w_a_x_man@...>
Date: 2010-01-04T19:50:12+09:00
Subject: Re: Is ruby's regex slower?

Ayumu Aizawa wrote:

> regex = /href="http:\/\/(.*?)\/.*" target="_blank"/
> 
> File.open("index.html") do |f|
>   f.each_line do |c|
>     puts $1 if c =~ regex
>   end
> end

regex = /href="http:\/\/(.*?)\/.*" target="_blank"/
IO.foreach("index.html"){|line| puts $1 if line =~ regex }



With no looping:

regex = /href="http:\/\/(.*?)\/.*" target="_blank"/
puts IO.readlines("index.html").map{|s| s[ regex, 1 ] }.compact

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