bernardeli

first: brew install highlight

second: add to your .zshrc (or .bashrc)

  function hlr {
    filename=`echo $1 | cut -d . -f 1`
    highlight --syntax ruby -k Menlo -K 20 -O rtf -s edit-xcode $1 > $filename.rtf
  }

third: it will generate a .rtf file. just open and copy the highlighted code and add to your Keynote talk.