Back in November, I built my RSS utility FeedBlender on the RSS standard library as it stood in (I believe) 1.8.2 preview 3, and it worked fine. Now as I've come back to take a look at it, I suspect that a change since then has made FeedBlender break. (I can't verify this without getting my hands on Ruby 1.8.2 preview 3; if anybody can tell me where to get this I'd be much obliged.)
Anyway, this is sort of my fault since I'm using the RSS library to write RSS in a way that Kou had told me isn't supported: You're supposed to delegate to RSS objects, not inherit from them. Me, I like inheriting, so that's what I did, and I got bit ... there are some changes that somewhat mystify me, particularly the fact that it appears that RSS 2.0 objects now contain RSS::RDF::Item objects, instread of RSS::Rss::Channel::Item objects ...
I want to fix it, but I could use some counsel regarding the long-term plans of this library. Seems to me that the parsing is relatively stable, but the RSS generation is subject to change, right? The old-fashioned, REXML-style generation is obviously changing. The tutorial at http://www.cozmixng.org/~rwiki/?cmd=view;name=RSS+Parser%3A%3ATutorial.en mentions the RSS::Maker, which seems like a more Builder-style generation. But that tutorial also specifically says Maker's API isn't fixed either.
So if I want FeedBlender to use the standard RSS library, and I don't want to have to adapt to a new API every six months, what's my best bet?
Thanks,
Francis Hwang
http://fhwang.net/
Hi,
In <2596C3DE-6455-11D9-9CF4-000A95DBF456@fhwang.net>
"An open question about the RSS stdlib" on Wed, 12 Jan 2005 13:42:03 +0900,
Back in November, I built my RSS utility FeedBlender on the RSS
standard library as it stood in (I believe) 1.8.2 preview 3, and it
worked fine. Now as I've come back to take a look at it, I suspect that
a change since then has made FeedBlender break.
Sorry, I'll fix.
The
tutorial at
http://www.cozmixng.org/~rwiki/?cmd=view;
name=RSS+Parser%3A%3ATutorial.en mentions the RSS::Maker, which seems
like a more Builder-style generation. But that tutorial also
specifically says Maker's API isn't fixed either.
Sorry, I didn't update the tutorial.
RSS::Maker's API is fixed.
···
Francis Hwang <sera@fhwang.net> wrote:
--
kou
Okay then. Now I've got a question about RSS::Maker. I'd like to be able to get the number of items in an RSS while making it. I tried this:
rss = RSS::Maker.make( '2.0' ) { |maker|
...
while ( maker.items.size < 20 )
...
end
}
but that doesn't work.
Francis Hwang
···
On Jan 13, 2005, at 12:06 AM, Kouhei Sutou wrote:
Sorry, I didn't update the tutorial.
RSS::Maker's API is fixed.
Hi,
In <20050113.140634.67873453.kou@cozmixng.org>
"Re: An open question about the RSS stdlib" on Thu, 13 Jan 2005 14:06:45 +0900,
···
Kouhei Sutou <kou@cozmixng.org> wrote:
> Back in November, I built my RSS utility FeedBlender on the RSS
> standard library as it stood in (I believe) 1.8.2 preview 3, and it
> worked fine. Now as I've come back to take a look at it, I suspect that
> a change since then has made FeedBlender break.
Sorry, I'll fix.
Done.
--
kou
Hi,
In <BB8675BE-65D9-11D9-876D-000A95DBF456@fhwang.net>
"Re: An open question about the RSS stdlib" on Fri, 14 Jan 2005 12:03:37 +0900,
I'd like to be
able to get the number of items in an RSS while making it. I tried
this:
rss = RSS::Maker.make( '2.0' ) { |maker|
...
while ( maker.items.size < 20 )
...
end
}
but that doesn't work.
Does it mean that you want maker.items to have size method?
Then I'll add it.
But, I recommend you to use maker.items.max_size=.
rss = RSS::Maker.make( '2.0' ) { |maker|
...
... do
item = maker.items.new_item
item.title = ...
...
end
...
maker.items.max_size = 20
}
If you want to get more example codes, see
test/rss/test_maker*.rb and sample/rss/blend.rb.
···
Francis Hwang <sera@fhwang.net> wrote:
--
kou
Thanks much. Any idea when the next preview release is coming out, so I don't have to say "Feedblender works if you get Ruby from CVS"? 
Francis Hwang
···
On Jan 14, 2005, at 11:50 PM, Kouhei Sutou wrote:
Hi,
In <20050113.140634.67873453.kou@cozmixng.org>
"Re: An open question about the RSS stdlib" on Thu, 13 Jan 2005 14:06:45 +0900,
Kouhei Sutou <kou@cozmixng.org> wrote:
Back in November, I built my RSS utility FeedBlender on the RSS
standard library as it stood in (I believe) 1.8.2 preview 3, and it
worked fine. Now as I've come back to take a look at it, I suspect that
a change since then has made FeedBlender break.
Sorry, I'll fix.
Done.