|
> Heiko wrote:
> SETUP = object()
> ELSE = object() > BREAK = object() >
> machine = {"WAITING FOR ACTION":
> {customer_drops_coin:"COIN HAS BEEN DROPPED", > customer_selects_beverage:"ORDER RECEIVED", > customer_cancels_order:"ACCOUNT CLOSURE IS DUE" > ELSE:"WAITING FOR ACTION"}, > "COIN HAS BEEN DROPPED": > {SETUP:identify_coin, > credit_account:"PAYMENT DUE IS UNKNOWN"}, > "ORDER RECEIVED": > {... >
> Reading the state machine in the way presented
above isn't any harder in my
> taste than reading your state table, and you should easily be able to run the > machine from there... > --- Heiko.
I think I get your idea. I also see a few problems
with your proposal. Let me try:
def customer_drops_coin (): ...
def customer_selects_beverage ():
...
def customer_cancels_order: ...
etc. def ELSE: return True
machine = {
"WAITING FOR ACTION": ( (
customer_drops_coin, "COIN HAS BEEN
DROPPED"
),
( customer_selects_beverage, "ORDER RECEIVED" ), ( customer_cancels_order, "ACCOUNT CLOSURE IS DUE" ), # ( ELSE, "WAITING FOR ACTION" ), ), "COIN
HAS BEEN DROPPED": ( (
identify_coin, None ),
( credit_account, "PAYMENT DUE IS UNKNOWN" ), ), "ORDER
RECEIVED": ( ( ... def
run_state_machine (machine, initial_state = "BEGIN"):
state = initial_state # Here
would be "WAITING FOR ACTION"
while True:
for function,
next_state in machine [state]:
go_next
= function ()
if
go_next:
if next_state:
state = next_state
if
state == "END":
return
This should work.
Frederic
|
-- http://mail.python.org/mailman/listinfo/python-list
