Petr Jakes wrote:
> Sorry, I can't get in. Can you please show me, how to use your approach
> on the simple push/push ON/OFF button for example please?
>
> PS: seriously it is not a homework :) and I feel it like a shame I am
> asking such a simple questions :(
>
> States: ON, OFF
> Transition event: "push", "lift"
>
> transition diagram:
> =========================
>
> ___ lift
> | |
> _V___|__
> ,->| ON |__
> | |________| |
> lift | | push
> | ________ |
> '--| OFF |<-'
> |________|
> ^ |
> |___|push
>
As a starting point, how about:
l = 'lift'
p = 'push'
action_sequence = [l,p,p,l,l,p,l,p,None]
next_action = iter(action_sequence).next
s_on = compile('''
print 'on'
action = next_action()
if action == 'lift':
state = s_on
elif action == 'push':
state = s_off
else:
state = None
''','','exec')
s_off = compile('''
print 'off'
action = next_action()
if action == 'lift':
state = s_on
elif action == 'push':
state = s_off
else:
state = None
''','','exec')
state = s_on # start state
while state:
eval(state)
Cheers,
Carl
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