#
  # Algorithm borrowed from http://wiki.rtorrent.org/MagnetUri and adapted to work with zsh.
  #
  
  function magnet_to_torrent() {
  	[[ "$1" =~ xt=urn:btih:([^\&/]+) ]] || return 1
  
  	hashh=${match[1]}
  
  	if [[ "$1" =~ dn=([^\&/]+) ]];then
  	  filename=${match[1]}
  	else
  	  filename=$hashh
  	fi
  
  	echo "d10:magnet-uri${#1}:${1}e" > "$filename.torrent"
  }