huned's homework problem

Show entries per day.rb

# Detect rss feed, parse it, and report number of posts per date.

require 'rubygems'
require 'hpricot'
require 'open-uri'

# First find the rss

url = ARGV[0] || "http://twitter.com/burnto"
doc = Hpricot(open(url))
rss_url = doc.search("link[@type=\"application/rss+xml\"]").first.attributes["href"]

# Now open and parse the rss

doc = Hpricot(open(rss_url))
counts = Hash.new(0)
doc.search("item/pubdate").each{|d|
  date = Date.parse(d.inner_html)
  counts[date] += 1
}

# TODO - fold this into the above iteration, since that's in order anyway.

counts.keys.sort.each do |date|
  puts "#{date} #{'=' * counts[date]}"
end