Easy way for a Nuub to get link-element from a html-source

[Marcus Strube]

hi all.

im very new to ruby and im not sure how to do this the easiest way in
ruby. i want to read the content from e.g. "www.spiegel.de" and just
this line

<link rel="alternate" type="application/rss+xml" title="SPIEGEL ONLINE
als RSS-Feed" href="http://www.spiegel.de/schlagzeilen/rss/index.xml" />

and from this line the "title" and the "href"

since the order in "link" is not sure, it doesnt look like regexp is the
first choice. and i couldn't find a HTML:arse.

 

[Lee Jarvis]

since the order in "link" is not sure, it doesnt look like regexp is the
first choice. and i couldn't find a HTML:arse.

Check out hpricot.

http://code.whytheluckystiff.net/hpricot/


Regards,
Lee

 

[Kai Brust]

hi all.

im very new to ruby and im not sure how to do this the easiest way in
ruby. i want to read the content from e.g. "www.spiegel.de" and just
this line

<link rel="alternate" type="application/rss+xml" title="SPIEGEL ONLINE
als RSS-Feed" href="http://www.spiegel.de/schlagzeilen/rss/
index.xml" />

and from this line the "title" and the "href"

since the order in "link" is not sure, it doesnt look like regexp is
the
first choice. and i couldn't find a HTML:arse.

How about hpricot?

http://code.whytheluckystiff.net/hpricot/

- Kai Brust

 

[Marcus Strube]

How about hpricot?

http://code.whytheluckystiff.net/hpricot/

ok, hpricot then.

is it just

gem install hpricot ??

or do i need to install this "ragel"-thing too?? (and if so which which
is the best way to do so??)

 

[Peter Szinek]

hi all.

im very new to ruby and im not sure how to do this the easiest way in
ruby. i want to read the content from e.g. "www.spiegel.de" and just
this line

<link rel="alternate" type="application/rss+xml" title="SPIEGEL ONLINE
als RSS-Feed" href="http://www.spiegel.de/schlagzeilen/rss/index.xml" />

and from this line the "title" and the "href"

since the order in "link" is not sure, it doesnt look like regexp is the
first choice. and i couldn't find a HTML:arse.

Another possibility is scRUBYt!:

==========================================
require 'rubygems'
require 'scrubyt'

feed_data = Scrubyt::Extractor.define do
fetch 'http://www.spiegel.de/'

link "//link[@rel='alternate']" do
title "title", :type => :attribute
href "href", :type => :attribute
end
end

puts feed_data.to_xml
==========================================

output:

==========================================
<root>
<link>
<title>SPIEGEL ONLINE als RSS-Feed</title>
<href>http://www.spiegel.de/schlagzeilen/rss/index.xml</href>
</link>
</root>
==========================================

or, to_hash:

==========================================
[{:title=>"SPIEGEL ONLINE als RSS-Feed",
:href=>"http://www.spiegel.de/schlagzeilen/rss/index.xml"}]
==========================================

Cheers,
Peter
___
http://www.rubyrailways.com
http://scrubyt.org

 

[Marcus Strube]

Another possibility is scRUBYt!:

That looks good. That looks good. Thank you!

 

[Peter Szinek]

That looks good. That looks good. Thank you!

Hm yeah, but the downside (as of the recent version - it'll be fixed in
the next one) is that the installation process is somewhat... hmm... not
that easy (mainly if you are on win32). If you still decide to go for
scRUBYt!, we can talk on #scrubyt @ irc.freenode.net or you can ask your
questions in the forum (http://agora.scrubyt.org).

Cheers,
Peter
___
http://www.rubyrailways.com
http://scrubyt.org