On Tue, Apr 1, 2014 at 3:26 PM, Steven D'Aprano wrote:
> Haskell has nifty pattern-matching syntax for this that looks quite close
> to the mathematical hybrid function syntax, but in Python, we're limited
> to explicitly using an if. If I were coding this, and I'm not, I'd wrap
> it in a function. One advantage of a state variable rather than a
> continuous time function is that we can do this:
> def accel(state):
> return {NO_BRAKING: 0.0,
> LOW_BRAKING: 0.2,
> MID_BRAKING: 0.425,
> HIGH_BRAKING: 0.85}[state]
Neat
I would put the dict in a variable. And those _BRAKINGs are GALLing me!
breaking = {NO:0.0, LOW:0.2, MID:0.425:, HIGH:0.85}
def accel(state): return breaking[state]
<Irony>
In using Haskell, I often wish for dicts especially python's nifty
dict-literals
</Irony>
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