Skypeの会話をコピペしたファイルを日付別に分割

skype-log-split.rb

#!/usr/bin/env ruby
# coding: utf-8

filename = nil
ARGF.each_line do |line|
  if line =~ /\A(\d{4})年(\d{1,2})月(\d{1,2})日[月火水木金土日]曜日\Z/
    filename = "%04d-%02d-%02d.txt" % [$1, $2, $3]
  end
  open(filename, "a") do |f|
    f.puts(line)
  end
end