# ------------------------------------------------------------------------------
  # Author
  # ------
  #
  # * Jerry Ling<jerryling315@gmail.com>
  #
  # ------------------------------------------------------------------------------
  # Usgae
  # -----
  #
  # man will be inserted before the command
  #
  # ------------------------------------------------------------------------------
  
  man-command-line() {
      [[ -z $BUFFER ]] && zle up-history
      [[ $BUFFER != man\ * ]] && LBUFFER="man $LBUFFER"
  }
  zle -N man-command-line
  # Defined shortcut keys: [Esc]man
  bindkey "\e"man man-command-line
  
  
  # ------------------------------------------------------------------------------
  # Also, you might want to use man-preview included in 'osx' plugin
  # just substitute "man" in the function with "man-preview" after you included OS X in
  # the .zshrc