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Fast and extensible Markdown for Elixir

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mdex lib mdex native.ex
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lib/mdex/native.ex 

# https://github.com/elixir-explorer/explorer/blob/d11216282bbdb0dcaef2519c2bfefda46c2981e0/lib/explorer/polars_backend/native.ex



defmodule MDEx.Native do

  @moduledoc false



  mix_config = Mix.Project.config()

  version = mix_config[:version]

  github_url = mix_config[:package][:links][:GitHub]

  mode = if Mix.env() in [:dev, :test], do: :debug, else: :release



  use_legacy =

    Application.compile_env(

      :mdex,

      :use_legacy_artifacts,

      System.get_env("MDEX_USE_LEGACY_ARTIFACTS") in ["true", "1"]

    )



  variants_for_linux = [

    legacy_cpu: fn ->

      # These are the same from the release workflow.

      # See the meaning in: https://unix.stackexchange.com/a/43540

      needed_caps = ~w[fxsr sse sse2 ssse3 sse4_1 sse4_2 popcnt avx fma]



      use_legacy or

        (is_nil(use_legacy) and

           not MDEx.ComptimeUtils.cpu_with_all_caps?(needed_caps))

    end

  ]



  other_variants = [legacy_cpu: fn -> use_legacy end]



  use RustlerPrecompiled,

    otp_app: :mdex,

    crate: "comrak_nif",

    version: version,

    base_url: "#{github_url}/releases/download/v#{version}",

    targets: ~w(

      aarch64-apple-darwin

      aarch64-unknown-linux-gnu

      aarch64-unknown-linux-musl

      arm-unknown-linux-gnueabihf

      riscv64gc-unknown-linux-gnu

      x86_64-apple-darwin

      x86_64-pc-windows-gnu

      x86_64-pc-windows-msvc

      x86_64-unknown-freebsd

      x86_64-unknown-linux-gnu

      x86_64-unknown-linux-musl

    ),

    variants: %{

      "x86_64-unknown-linux-gnu" => variants_for_linux,

      "x86_64-pc-windows-msvc" => other_variants,

      "x86_64-pc-windows-gnu" => other_variants,

      "x86_64-unknown-freebsd" => other_variants

    },

    nif_versions: ["2.15"],

    mode: mode,

    force_build: System.get_env("MDEX_BUILD") in ["1", "true"]



  def safe_html(_unsafe_html, _sanitize, _escape_content, _escape_curly_braces_in_code), do: :erlang.nif_error(:nif_not_loaded)



  # markdown

  #   - to document (parse)

  #   - to html

  #   - to xml

  def parse_document(_md, _opts), do: :erlang.nif_error(:nif_not_loaded)

  def markdown_to_html(_md), do: :erlang.nif_error(:nif_not_loaded)

  def markdown_to_html_with_options(_md, _opts), do: :erlang.nif_error(:nif_not_loaded)

  def markdown_to_xml(_md), do: :erlang.nif_error(:nif_not_loaded)

  def markdown_to_xml_with_options(_md, _opts), do: :erlang.nif_error(:nif_not_loaded)



  # document

  #   - to markdown (commonmark)

  #   - to html

  #   - to xml

  def document_to_commonmark(_doc), do: :erlang.nif_error(:nif_not_loaded)

  def document_to_commonmark_with_options(_doc, _opts), do: :erlang.nif_error(:nif_not_loaded)

  def document_to_html(_doc), do: :erlang.nif_error(:nif_not_loaded)

  def document_to_html_with_options(_doc, _opts), do: :erlang.nif_error(:nif_not_loaded)

  def document_to_xml(_doc), do: :erlang.nif_error(:nif_not_loaded)

  def document_to_xml_with_options(_doc, _opts), do: :erlang.nif_error(:nif_not_loaded)

end