Twitterのbio生成

slash.rb

#coding:utf-8
require 'open-uri'
require 'nokogiri'
require 'MeCab'

a = Nokogiri::HTML(open('http://tenki.jp/')).css("#descriptionEntries").text

mecab = MeCab::Tagger.new
node = mecab.parseToNode(a)
b = []
prev = nil
while node do
  m =  node.feature.split(',')[0].force_encoding("utf-8").match(/名詞/u)
  if prev and m
    b[b.length-1] = b.last + node.surface.force_encoding("utf-8")
  elsif m
    b.push(node.surface.force_encoding("utf-8"))
  end
  prev = m
  node = node.next
end
puts b.uniq.sort_by{rand}.join('/')