From: Ilmari Heikkinen <kig@...>
Date: 2005-04-29T00:40:36+09:00
Subject: Re: Is there a Ruby library that does HTML entity parsing?


On 28.4.2005, at 18:05, John Lam wrote:

> Steve, I've been using the URI lib quite a bit, but it doesn't parse 
> entities. One feature that would be nice to add is one that calculates 
> the URL for the directory that contains a document, given its complete 
> URL.
>
> For example, consider:
>
> http://www.foo.com/bar/something.htm
>
> This document clearly lives in
>
> http://www.foo.com/bar/
>

This can also be done using File.split / dirname / basename:

File.dirname "http://foo.com/bar/stuff.html"
#=> "http://foo.com/bar"

File.basename "http://foo.com/bar/stuff.html"
#=> "stuff.html"

File.split "http://foo.com/bar/stuff.html"
#=> ["http://foo.com/bar", "stuff.html"]

File.join( File.dirname("http://foo.com/bar/doc.html"), 
"relative_link.html" )
# => "http://foo.com/bar/relative_link.html"

Though that probably breaks on Windows since it has backslashes for 
directory separators.

Cheers,
Ilmari Heikkinen