_todo()
{
    local cur prev opts
    COMPREPLY=()
    cur="${COMP_WORDS[COMP_CWORD]}"
    prev="${COMP_WORDS[COMP_CWORD-1]}"

    COMMANDS="add a addto addm append app archive command del  \
              rm depri dp do help list ls listall lsa listcon  \
              lsc listfile lf listpri lsp listproj lsproj move \
              mv prepend prep pri p replace report"

    # Add custom commands from add-ons, if installed.
    COMMANDS="$COMMANDS $('ls' ${TODO_ACTIONS_DIR:-$HOME/.todo.actions.d}/ 2>/dev/null)"

    OPTS="-@ -@@ -+ -++ -d -f -h -p -P -PP -a -n -t -v -vv -V -x"

    if [ $COMP_CWORD -eq 1 ]; then
	completions="$COMMANDS $OPTS"
    else
	case "${prev}" in
	    -*) completions="$COMMANDS $OPTS";;
	    *)  return 0;;
	esac
    fi

    COMPREPLY=( $( compgen -W "$completions" -- $cur ))
    return 0
}

complete -F _todo todo.sh
# If you define an alias (e.g. "t") to todo.sh, you need to explicitly enable
# completion for it, too:
complete -F _todo t