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earmark

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Earmark is a pure-Elixir Markdown converter. It is intended to be used as a library (just call Earmark.as_html), but can also be used as a command-line tool (run mix escript.build first). Output generation is pluggable.

Retired package: Deprecated - Earmark is no longer maintained. Migrate to a replacement, for example MDEx (https://hex.pm/packages/mdex).
Security advisory: This version has known vulnerabilities. View advisories
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earmark lib earmark helpers html_helpers.ex
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lib/earmark/helpers/html_helpers.ex 

defmodule Earmark.Helpers.HtmlHelpers do



  @moduledoc false



  import Earmark.Helpers.AttrParser

  

  @simple_tag ~r{^<(.*?)\s*>}



  @doc false



  def augment_tag_with_ial(context, tag, ial, lnb) do 

    case Regex.run( @simple_tag, tag) do 

      nil ->

        nil

      ["<code class=\"inline\">", "code class=\"inline\""] ->

        tag = String.replace(tag, ~s{ class="inline"}, "")

        add_attrs(context, tag, ial, [{"class", ["inline"]}], lnb)

      _   ->

        add_attrs(context, tag, ial, [], lnb)

    end

    

  end





  ##############################################

  # add attributes to the outer tag in a block #

  ##############################################



  @doc false

  def add_attrs(context, text, attrs_as_string_or_map, default_attrs, lnb )

  def add_attrs(context, text, nil, [], _lnb), do: {context, text}

  def add_attrs(context, text, nil, default, lnb), do: add_attrs(context, text, %{}, default, lnb)

  def add_attrs(context, text, attrs, default, lnb) when is_binary(attrs) do

    {context1, attrs} = parse_attrs( context, attrs, lnb )

    add_attrs(context1, text, attrs, default, lnb)

  end

  def add_attrs(context, text, attrs, default, _lnb) do

    {context, 

      default

      |> Map.new()

      |> Map.merge(attrs, fn _k, v1, v2 -> v1 ++ v2 end)

      |> attrs_to_string()

      |> add_to(text)}

  end



  defp attrs_to_string(attrs) do

    (for { name, value } <- attrs, do: ~s/#{name}="#{Enum.join(value, " ")}"/)

                                                  |> Enum.join(" ")

  end



  defp add_to(attrs, text) do

    attrs = if attrs == "", do: "", else: " #{attrs}"

    String.replace(text, ~r{\s?/?>}, "#{attrs}\\0", global: false)

  end



end



# SPDX-License-Identifier: Apache-2.0