From: Bob Showalter <showaltb@...>
Date: 2007-06-20T22:02:51+09:00
Subject: Re: Relative To Absolute Path Convertor

On 6/19/07, ciocan <ciocan@gmail.com> wrote:
> Is there a built in function/plugin that converts
> relative paths from a html page to absolute ones?
>
> Example:
> target url: http://mysite.com/folder/url.html
>
> url content:
> ...
> <script src="/script.js"></script>
> <a href="link.html">some link</a>
> ...
>
> converted content:
> ...
> <script src="http://mysite.com/script.js"></script>
> < a href="http://mysite.com/folder/link.html">some link</ a>
> ...
>
> How can I accomplish this using ruby ?

Use URI#merge:

  >> require 'uri'
  => true
  >> base = URI.parse("http://mysite.com/folder/url.html")
  => #<URI::HTTP:0x4160a54 URL:http://mysite.com/folder/url.html>
  >> base.merge("/script.js").to_s
  => "http://mysite.com/script.js"
  >> base.merge("link.html").to_s
  => "http://mysite.com/folder/link.html"