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Re: Generating multi-level associative arrays

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Victor Porton wrote:

> Rui Maciel wrote:
> 
>> Victor Porton wrote:
>> 
>>> Rui Maciel wrote:
>>> 
>>>> Victor Porton wrote:
>>>> 
>>>>> But what is the best way to do this if we want a MULTILEVEL
>>>>> associative array? (indexed by first key "a", then by key "b", etc.)
>>>>> 
>>>>> I want to discuss the most elegant, short, and practical solution for
>>>>> this kind of problems.
>>>> 
>>>> I don't know if it's the most elegant, but if you wish to have multiple
>>>> keys map to a value then you can resort to a tuple containing both keys
>>>> as your map's key.
>>>> 
>>>> That approach is very common.  For example, with the "dictionary of
>>>> keys" matrix data structure, the matrix elements are stored in a
>>>> key:value pair whose key is a (row, column) tuple.
>>> 
>>> It seems you have misunderstood me. I ask about forming a *multilevel*
>>> associative array like:
>>> 
>>> [1:[2:[[a:1, b:2, c:3],...]]]
>>> 
>>> where "1" a value of the key "a", "2" is a value of the key "b", etc.
>>> 
>> 
>> What do you mean by "multi-level"? For example, from your example, by
>> multi- level do you mean that in order to access the value in the a:1 key
>> value pair, the map goes something like:
>> 
>> example_map[1][2][a] == 1 ?
> 
> Yes, well almost:
> 
> example_map[1][2] (without [a])

Just to get things straight, you expect an outcome similar to the following 
pseudo-ish code?

example_map[1][2] == 1


Rui Maciel

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Thread

Generating multi-level associative arrays Victor Porton <porton@narod.ru> - 2013-06-22 21:19 +0300
  Re: Generating multi-level associative arrays Rui Maciel <rui.maciel@gmail.com> - 2013-06-23 08:30 +0100
    Re: Generating multi-level associative arrays Victor Porton <porton@narod.ru> - 2013-06-23 15:16 +0300
      Re: Generating multi-level associative arrays Rui Maciel <rui.maciel@gmail.com> - 2013-06-23 16:02 +0100
        Re: Generating multi-level associative arrays Victor Porton <porton@narod.ru> - 2013-06-23 18:06 +0300
          Re: Generating multi-level associative arrays Rui Maciel <rui.maciel@gmail.com> - 2013-06-23 18:52 +0100
            Re: Generating multi-level associative arrays Victor Porton <porton@narod.ru> - 2013-06-24 14:52 +0300
              Re: Generating multi-level associative arrays Victor Porton <porton@narod.ru> - 2013-06-24 14:53 +0300
  Solved: Generating multi-level associative arrays Victor Porton <porton@narod.ru> - 2013-06-24 20:36 +0300

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