[erlang-questions] Want to convert tuple format into map

Jesper Louis Andersen <>
Sat Sep 2 18:18:19 CEST 2017


The tools you need are recursion and pattern matching.

Build a set of functions which match on your tuples, uses recursion to
compute subtuples into maps, and then builds a map out of the results at
this level. Suppose we have

T = {x, {data, 34, 35}, {data, 21, 22}},

We can then write a tool

conv({x, L, R}) -> #{ type => x, left => conv(L), right => conv(R) };
conv({data, V1, V2}) -> #{ type => data, value1 => V1, value2 => V2 }.

which can do the conversion by calling itself recursively. These ideas
should be applicable to your case as well.

On Sat, Sep 2, 2017 at 11:15 AM Palanikumar Gopalakrishnan <
> wrote:

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> Hi Guys,
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>               I want to convert tuple format into map. This is format of
> tuple
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> *{{metadata,2,0,
> {server_status,false,true,false,false,true,false,false,
> false,false,false,false,false},                    [
> {
> field_metadata,"def","zurik","erlang","erlang","name",
> "name",33,135,253,                         <<0,0>>,
> 0,                         []
> },                     {
> field_metadata,"def","zurik","erlang","erlang","id",
> "id",63,11,3,                         <<0,0>>,
> 0,                         []
> }                         ],                    []
> },                [                ["some",457],
> ["some",457],                ["data2sosfasfme",42]
> ]                }*
> I want to convert this format into map. Please help me to solve this
> challenge
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>
> --
>
> *Warm Regards,*
>
> *Palanikumar Gopalakrishnan *[image: ✌]
> *Developer*
>
>
> _______________________________________________
> erlang-questions mailing list
> 
> http://erlang.org/mailman/listinfo/erlang-questions
>
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