__punch_complete() {
  local cmd=$1
  local cur=$2
  local prev=$3
  if [ $COMP_CWORD -eq 1 ]; then
    COMPREPLY=( $(compgen -W "$(punch|grep '^  '|sed 's/^  //'|cut -d' ' -f1)" -- $cur) )
  else
    case "${COMP_WORDS[1]}" in
      start) [ $COMP_CWORD -eq 2 ] && COMPREPLY=( $(compgen -W "$(punch ls)" -- $cur) ) ;;
      today|week|cat|rm) COMPREPLY=( $(compgen -W "$(punch ls)" -- $cur) ) ;;
    esac
  fi
} &&
complete -F __punch_complete punch