shell version compare - call me crazy

version_compre.sh

__rvm_version_compare()
{
  typeset v1 v2 v1d v2d dots x counter IFS
  typeset -a transformer

  v1=$1
  v2=$3
  v1d=$( printf $v1 | grep -o '\.' | wc -l )
  v2d=$( printf $v2 | grep -o '\.' | wc -l )
  if [[ $v1d -ge $v2d ]]
  then dots=$v1d
  else dots=$v2d
  fi

  counter=1
  for x in $( seq $dots 0 )
  do
    transformer+=( "$(( 256 ** x ))*\$${counter}" )
    : $(( counter+=1 ))
  done

  IFS="+" # to put + in transformer ;)
  eval "$(
    printf '[[ ';
    printf $1 | awk -F. "{ printf ${transformer[*]} }";
    printf -- " $2 ";
    printf $3 | awk -F. "{ printf ${transformer[*]} }";
    printf ' ]]'
  )"
}