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lib/exjprop/string.ex
defmodule Exjprop.String do
@doc """
Convert a string into a Stream
"""
def to_stream(str) do
Stream.unfold(str, &string_to_stream_unfolder/1)
end
defp string_to_stream_unfolder(acc) do
get_next_element_acc(String.length(acc), acc)
end
defp get_next_element_acc(0, _acc), do: nil
defp get_next_element_acc(_length, acc) do
case String.split(acc, "\n", parts: 2) do
[element] -> {element, ""}
[element, rest] -> {element, rest}
end
end
end