Custom tag data issue

[ameet...@gmail.com]

Hello there,

 

I have created a custom tag in view/lib/tag_modules/proj_custom_tags.erl as follows

first_zip_code_label(Variables, Options) ->
   Name = proplists:get_value(name, Variables),
   ListData = proplists:get_value(list_data, Variables),
   io:format("~n~n ListData ~p~n~n",[ListData]),
   [{zip1, Zip1},{zip2, Zip2}] = lists:nth(ListData),
   unicode:characters_to_binary(binary:bin_to_list(Zip1) ++ "-" ++binary:bin_to_list(Zip2)).

We can use this tag in the view as follows

 

{% first_zip_code_label name="F_03_0010" list_data=data.list_of_zip_codes %}

If

data.list_of_zip_codes = [[{zip1,<<>>},{zip2,<<>>}],[{zip1,<<>>},{zip2,<<>>}]]

then in the custom tag at gives the value of  data.list_of_zip_codes as 

=> 

[[[{zip1,<<>>}],[{zip2,<<>>}]],[[{zip1,<<>>}],[{zip2,<<>>}]]]

But it should give value as 

=> 

[[{zip1,<<>>},{zip2,<<>>}],[{zip1,<<>>},{zip2,<<>>}]]

Here I am not getting that why in the custom tag it is giving different value ?

Thanks in advance.