html実体参照なファイル名をリネームするスプリクト for win

rename_file.rb

#!/use/bin/ruby -Ks
#codeing:sjis
require 'rubygems'
require 'htmlentities'
def printDirs(dir)
  Dir::entries(dir).sort.each do |child|
    path = dir + "/" + child;
    if child == "." or child == ".."
        # do nothing
    elsif File::ftype(path) == "directory"
        printDirs(path, &Proc.new{|it| yield(it)})
    else
        yield(path)
    end
  end
end
                      
printDirs(".") do |it|
  it2 = File::basename(it)
  puts it2+"\n"
  it3 = HTMLEntities.new.decode(it2).encode("Shift_JIS")
  if it2 != "rename_file.rb" and it2!=it3
    File.rename(it2,it3)
  end
  puts it3+"\n"
end
print "Push anykey:"
gets.chop