エビ中とLINEしてる気分になれるChatBotをPictRubyで作ってみた ref: http://qiita.com/cherenkov/items/c6a744639a39a693810b

line_like_chatbot.rb

#line_like_chatbot v0.1
class Chat
  def initialize
    feed = "http://lineblog.me/ebichu/index.rdf"
    count = 10
    url = "https://query.yahooapis.com/v1/public/yql?q=SELECT%20title%2Clink%2Cencoded%20FROM%20rss%20WHERE%20url%3D%22" + URI.encode_www_form_component(feed) + "%22%20%7C%20truncate(count%3D" + count.to_s + ")&format=json"
    data = Browser.json url
    @menu = []
    @text = []
    data['query']['results']['item'].each_with_index {|item,i|
      @menu.push "#{i+1}:#{item['title']}"
      @text.push item['encoded']
    }
    @menu = @menu.join("\n")
    @select_index = nil
    @stdout = nil
    @i = -1
  end

  def welcome
    @menu
  end

  def call(input)
    if @select_index == nil
      @select_index = input.to_i 
      src = @text[@select_index-1]
      url = "http://api.dan.co.jp/lleval.cgi?l=rb&s=" + URI.encode_www_form_component("p '#{src}'")+".gsub(%2F%5Cn%5Cs%2B%7C(%3Cbr%5Cs%5C%2F%3E)%2B%2F%2C%22%5Cn%22).gsub(%2F%3C(%22%5B%5E%22%5D*%22%7C'%5B%5E'%5D*'%7C%5B%5E'%22%3E%5D)*%3E%2F%2C'').gsub(%2F(%5CA%5Cn%2B%7C%5Cn%2B%5Cz)%2F%2C%22%22).split(%2F%5Cs*%5Cn%2B%5Cs*%2F)"
      json = Browser.json url
      @stdout = eval(json['stdout'])
      @i += 1
      @stdout[@i].strip
    else
      @i += 1
      @i < @stdout.size ? @stdout[@i].strip : "おわり🍤"
    end
  end
end