This is a tool to regularly extract value from web pages and prompt on every changes.
It will add an eye icon in notification area.
You can add Matchers in it. For that you need to give it :
- an name, what ever you like
- a group name, what ever too.
- an url, tha page where information leave.
- a regex, to extract usefull information. That might be the difficult part

Exemple, to retreive last foobar version :

Name : foobar2000
Group : Audio
URL : http://www.foobar2000.org/download
Regex : <h2>Latest stable version</h2>.*?">(.*?)</a>

the important part is (.*?). It is the part to be extracted. There can be several of it.
you might find useful information there : http://en.wikipedia.org/wiki/Regular_expression

Download

Source code is here :
https://github.com/mgth/WebMatcher