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beam_weaver

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Elixir-native LangChain, LangGraph, and DeepAgents for traceable LLM apps: OTP workflows, tools, memory, human-in-the-loop, streaming, custom clients/adapters, minimal deps, and WeaveScope tracing.

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beam_weaver lib beam_weaver filesystem edit.ex
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lib/beam_weaver/filesystem/edit.ex 

defmodule BeamWeaver.Filesystem.Edit do

  @moduledoc false



  alias BeamWeaver.Filesystem.Utils



  def replacement(content, old, new, replace_all?) when is_binary(content) do

    occurrences = Utils.count_occurrences(content, old)



    cond do

      occurrences == 0 ->

        {:error, :not_found}



      replace_all? ->

        {:ok, occurrences, String.replace(content, old, new)}



      occurrences == 1 ->

        {:ok, occurrences, String.replace(content, old, new, global: false)}



      true ->

        {:error, "multiple occurrences"}

    end

  end

end