WIP: Markdown formatter

bin/ex_doc

@@ -6,6 +6,10 @@ Code.prepend_path Path.expand("../_build/#{mix_env}/lib/makeup_elixir/ebin", __D
 Code.prepend_path Path.expand("../_build/#{mix_env}/lib/makeup_erlang/ebin", __DIR__)
 Code.prepend_path Path.expand("../_build/#{mix_env}/lib/makeup_html/ebin", __DIR__)
 Code.prepend_path Path.expand("../_build/#{mix_env}/lib/earmark_parser/ebin", __DIR__)
+Code.prepend_path Path.expand("../_build/#{mix_env}/lib/rustler_precompiled/ebin", __DIR__)
+Code.prepend_path Path.expand("../_build/#{mix_env}/lib/castore/ebin", __DIR__)
+Code.prepend_path Path.expand("../_build/#{mix_env}/lib/jason/ebin", __DIR__)
+Code.prepend_path Path.expand("../_build/#{mix_env}/lib/mdex/ebin", __DIR__)
 Code.prepend_path Path.expand("../_build/#{mix_env}/lib/ex_doc/ebin", __DIR__)
 
 if Code.ensure_loaded?(ExDoc.CLI) do

lib/ex_doc.ex

@@ -35,11 +35,16 @@ defmodule ExDoc do
   end
 
   defp find_formatter(name) do
-    [ExDoc.Formatter, String.upcase(name)]
+    [ExDoc.Formatter, modname(name)]
     |> Module.concat()
     |> check_formatter_module(name)
   end
 
+  defp modname("epub"), do: EPUB
+  defp modname("html"), do: HTML
+  defp modname("markdown"), do: Markdown
+  defp modname(_), do: nil
+
   defp check_formatter_module(modname, argname) do
     if Code.ensure_loaded?(modname) do
       modname

lib/ex_doc/cli.ex

@@ -192,7 +192,7 @@ defmodule ExDoc.CLI do
                                 See "Custom config" section below for more information.
           --favicon             Path to a favicon image for the project. Must be PNG, JPEG or SVG. The image
                                 will be placed in the output "assets" directory.
-      -f, --formatter           Docs formatter to use (html or epub), default: html and epub
+      -f, --formatter           Docs formatter to use (html, epub or markdown), default: html and epub
           --homepage-url        URL to link to for the site name
           --language            Identify the primary language of the documents, its value must be
                                 a valid [BCP 47](https://tools.ietf.org/html/bcp47) language tag, default: "en"