Re: Reading data from firefox install.rdf with Javascript

programmer wrote:
> I'm very new to RDF and I don't understand how I can determine the value (called literal??) associated
> to an attribute.
> 
> Suppose I have this RDF
> 
> <RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
>      xmlns:em="http://www.mozilla.org/2004/em-rdf#">
> 
>   <Description about="urn:mozilla:install-manifest">
>     <em:id>{11111111-2222-3333-4444-555555555555}</em:id>
>     <em:name>Extension name</em:name>
>     ...
>     ...
>     ...
>     <em:homepageURL>http://asimpleurl.com</em:homepageURL>
> 
> How can I obtain the value http://asimpleurl.com??
> 
> I tried code similar to this below but doesn't work.
> 
> var rdfs = Components.classes["@mozilla.org/rdf/rdf-service;1"]
>                    .getService(Components.interfaces.nsIRDFService);
> 
> var ds = rdfs.GetDataSourceBlocking("file:///tmp/install.rdf");
> var extension = rdfs.GetResource("11111111-2222-3333-4444-555555555555");
> 

This line should be:

var extension = rdfs.GetResource("urn:mozilla:install-manifest");

/ Neil