#! /usr/bin/env ruby
require 'rubygems' rescue nil
require 'yaml'
require 'erb'
require 'bluecloth'
require 'time'

stream = YAML.load_stream(ARGF.read)
channel = stream[0]
items = stream[1..-1]

include ERB::Util
template = ERB.new <<EOF
<?xml version="1.0"?>
<rss version="2.0">
   <channel>
      <title><%= h channel['title'] %></title>
      <link><%= h channel['link'] %></link>
      <description><%= h channel['description'] %></description>
      <lastBuildDate><%= h Time.now.rfc822 %></lastBuildDate>
      <generator>yaml2rss</generator>
      <webMaster><%= h channel['webMaster'] %></webMaster>
<% 
for item in items do
  title, date, body = item.split("\n",3)
  date = Time.parse(date)
  body = BlueCloth.new(body).to_html
%>
      <item>
         <title><%= h title %></title>
         <description><%= h body %></description>
         <pubDate><%= h date.rfc822 %></pubDate>
         <guid><%= h "\#{channel['link']}?date=\#{date.iso8601}" %></guid>
      </item>
<% end %>
   </channel>
</rss>
EOF

puts template.result(binding)