[erlang-questions] How do I elegantly check many conditions?
Fri Mar 20 17:47:23 CET 2009
2009/3/20 Attila Rajmund Nohl <>:
> 2009/3/20, Adam Kelly <>:
>> 2009/3/20 ryeguy <>:
>>> Now I don't want to have a 5 level deep if or case statement, but what
>>> other options do I have? Splitting it into separate functions sounds
>>> like a good idea, but then I just have to check the return value of
>>> the functions in some sort of conditional and it's back to the
>>> original problem.
>> I've added this function to my libraries:
>> run_checks() -> ok;
>> run_checks([H|T]) when is_function(H, 0) ->
>> case H() of
>> ok -> run_checks(T);
>> Error -> Error
> Something like this is badly missing from the lists module...
I'm not sure I'd put it in the lists module, maybe an additional
module would be good. I have a collection of higher order functions for these
sorts of tasks.
On the other hand I'm partially convinced that the try -> catch badmatch
solution is neater anyway.
(I presume your response was intended for the list.)
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