From: Luis Parravicini <lparravi@...>
Date: 2007-10-23T21:51:28+09:00
Subject: Strange behavior with Sequel + RSS::Parser

Hi

I'm having a strange behavior when using RSS::Parser after requiring
the sequel gem. After doing a require 'sequel', the number of news
items is always 0. The script below is a small test which reads a rss
feed with 6 items and prints the number of news items parsed. The
first puts is after requiring 'rss', and the last puts is after
requiring 'sequel'.

# require 'rss'
read 6, should be: 6
# require 'rubygems'
read 6, should be: 6
# require 'sequel'
read 0, should be: 6

I've run this script with:
sequel 0.2.1.1 and ruby 1.8.5 (2006-08-25) [i486-linux]
sequel 0.3.0.1 and ruby 1.8.6 (2007-06-07 patchlevel 36) [i486-linux]

Anyone seen this before?

Thanks


---[begin] test_case.rb -----------------------------------------
ITEMS = 6

def rss_items
  rss = RSS::Parser.parse(IO.readlines('feed.xml').join)
  rss.items.size
end

def compare(items)
  puts "read #{items}, should be: #{ITEMS}"
end


require 'rss'
compare(rss_items)

require 'rubygems'
compare(rss_items)

require 'sequel'
compare(rss_items)
---[end] test_case.rb -----------------------------------------

---[begin] feed.xml -----------------------------------------
<?xml version="1.0" encoding="ISO-8859-1"?>
<rss version="0.91">
  <channel>
    <title/>
    <description/>
    <link/>

    <item/>
    <item/>
    <item/>
    <item/>
    <item/>
    <item/>

  </channel>
</rss>
---[end] test_case.rb -----------------------------------------

-- 
Luis Parravicini
http://ktulu.com.ar/blog/