transitions = {
# values are tuples of (newstate, transition_function)
STATE_A: [
(STATE_B, lambda x: x > 5),
(STATE_C, lambda x: x > 10),
(STATE_D, lambda x: x > 100),
],
STATE_B: [
(STATE_A, lambda x: x < 5),
(STATE_C, lambda x: x > 10),
],
STATE_C: [
(STATE_B, lambda x: x < 10),
(STATE_D, lambda x: x > 100),
],
STATE_D: [],
}
And if you don't mind me asking. How do you invoke lambda from
transitions?
Disregard that. I think I figured it out.
If you had something like...
transitions = {1: [2, lambda x: 2*x]}
You would probably call it like...
transitions[1][1](4)
8
I tend to use them with tuple assignment which I find reads more
cleanly than directly indexing:
for input in source():
available_states = []
for new_state, function in transitions[state]:
if function(input):
available_states.append(new_state)
do_something(available_states)
-tkc
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