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4 points by antiismist 5795 days ago | link | parent

I agree that the lack of libs is a real problem. My real world example: I have have a bunch of RSS feeds, and I want to regularly poll those feeds, extract some content, and add it to my site (pageonetimes.com).

Doing it with Arc alone is too much for me - for mysterious reasons get-http.arc isn't working for me. Even if it did, I would have to write my own rss parser. Instead I am using Ruby for this, and grabbing the RSS content, parsing it, and saving the results is about 10 lines of code using standard libraries.



4 points by stefano 5794 days ago | link

What kind of problems exactly does get-http.arc give you? It's a translation of a piece of Common Lisp code I had written to be able to fetch RSS feeds. The CL version worked well for the task.

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1 point by antiismist 5794 days ago | link

Here is what happens:

  arc> (get-request (str->url "http://yahoo.com/"))
  Error: "procedure ...narki/arc/ac.scm:1231:11: expects 2 arguments, given 3: 
  #hash((\"CONTENT-TYPE\" . \"text/... \"LOCATION\" #hash((\"CONTENT-TYPE\" . \"text/..."
(I think the problem lies with me, in that I don't know how to use the library...)

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3 points by stefano 5794 days ago | link

I've tried your example and gives me (obviously) the same error, but trying

  (get-request (str->url "http://www.yahoo.com/"))
works. I will investigate further.

BTW, get-request returns a list containing the header of the response and a string containing the page (when it doesn't raise and error, of course).

Edit: bug solved. New version on github!

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1 point by antiismist 5793 days ago | link

Thanks you are awesome. So what do you use for RSS parsing?

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2 points by stefano 5792 days ago | link

In my CL project I thought to parse it manually, but I've abandoned the project after finishing the HTTP part. I've never tried using it, but you could have a look at treeparse in Anarki, if you haven't done already.

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