From 36826bd974e12f9838a44d28ab9f7dd498a2b166 Mon Sep 17 00:00:00 2001
From: Dairon Medina Caro <168440+codeadict@users.noreply.github.com>
Date: Thu, 23 Jul 2026 13:17:29 -0400
Subject: [PATCH] Add EEP-59 Markdown injection support

---
 languages/erlang/config.toml    |  2 +-
 languages/erlang/injections.scm | 17 +++++++++++++++++
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/languages/erlang/config.toml b/languages/erlang/config.toml
index 01eba93..9ffbc2e 100644
--- a/languages/erlang/config.toml
+++ b/languages/erlang/config.toml
@@ -2,7 +2,7 @@ name = "Erlang"
 grammar = "erlang"
 # TODO: support parsing rebar.config files
 # # https://github.com/WhatsApp/tree-sitter-erlang/issues/3
-path_suffixes = ["erl", "hrl", "app.src", "escript", "xrl", "yrl", "Emakefile", "rebar.config"]
+path_suffixes = ["erl", "erlang", "hrl", "app.src", "escript", "xrl", "yrl", "Emakefile", "rebar.config"]
 line_comments = ["% ", "%% ", "%%% "]
 autoclose_before = ";:.,=}])>"
 brackets = [
diff --git a/languages/erlang/injections.scm b/languages/erlang/injections.scm
index 2f0e58e..b5264d3 100644
--- a/languages/erlang/injections.scm
+++ b/languages/erlang/injections.scm
@@ -1,2 +1,19 @@
 ((comment) @injection.content
   (#set! injection.language "comment"))
+
+; EEP-59 doc attributes use Markdown by default.
+(wild_attribute
+  name: (attr_name
+    name: (atom) @_attribute)
+  value: (string) @injection.content
+  (#any-of? @_attribute "doc" "moduledoc")
+  (#set! injection.language "markdown"))
+
+; Also support the accepted parenthesized attribute form.
+(wild_attribute
+  name: (attr_name
+    name: (atom) @_attribute)
+  value: (paren_expr
+    expr: (string) @injection.content)
+  (#any-of? @_attribute "doc" "moduledoc")
+  (#set! injection.language "markdown"))