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List:       ruby-talk
Subject:    Re: Validation for feed links using by 'rss'
From:       Lars Haugseth <njus () larshaugseth ! com>
Date:       2010-05-31 9:25:07
Message-ID: 857hmke7vb.fsf () shell ! tindetech ! no
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* saurabh purnaye <saurabh.purnaye@gmail.com> wrote:
> 
> [Note:  parts of this message were removed to make it a legal post.]
>
> Hi,
> There are ways to validate url
>
> 1. validate using reg ex
>
>  /(^$)|(^(http|https):\/\/[a-z0-9]+([\-\.]{1}[a-z0-9]+)*\.[a-z]{2,5}(([0-9]{1,5})?\/.*)?$)/ix

Why not use the standard library?

require 'uri'

begin
  uri = URI.parse(url_string)
rescue URI::InvalidURIError
  puts "Bad URL: #{url_string}"
end

-- 
Lars Haugseth

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