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src/glentities_ffi.erl
-module(glentities_ffi).
-export([coerce/1, slice/3, first/1, drop_first/1]).
coerce(X) -> X.
slice(String, From, Len) ->
binary:part(String, From, Len).
first(String) ->
case String of
<<>> -> <<>>;
<<First, _/bitstring>> ->
<<First>>
end.
drop_first(String) ->
case String of
<<>> -> <<>>;
<<_, Rest/bitstring>> -> Rest
end.