通过链接，获取tom围棋sgf棋谱，并转换为utf-8编码的脚本

command line usage example

$ ruby get_tom_sgf.rb http://weiqi.sports.tom.com/qipu/201108/16sx-b3-0826-sllch.sgf > utf-8.sgf

get_tom_sgf.rb

#!/usr/bin/env ruby
# Filename: get_tom_sgf.rb
# A very simple script to get tom weiqi's sgf text
# Usage: ruby get_tom_sgf.rb <sgf_file_path>

require 'net/http'

def usage
  puts 'usage: ruby get_tom_sgf.rb <sgf_file_path>'
  exit!
end

if ARGV.length != 1
  usage
end

link = ARGV[0]
sgf = nil
sgf_host = 'weiqi.sports.tom.com'
sgf_path = link[(link.index(sgf_host) + sgf_host.length)..-1]


Net::HTTP.start(sgf_host) do |http|
  response = http.get(sgf_path)
  sgf = response.body
end

puts sgf.force_encoding('GB18030').encode('UTF-8')