usage: Erlang mode

content/en/modes/erlang.md

@@ -0,0 +1,27 @@
+---
+title: Erlang
+---
+
+`erlang-mode` supports:
+
+- syntax highlighting
+- REPL: `M-x run-erlang`
+  - once started, it uses its own `run-erlang-mode` major mode.
+- send and eval region (async): `C-c C-r` aka `M-x erlang-eval-region`.
+- LSP support
+
+
+## Configuration
+
+Erlang mode will connect to your local ELP [Erlang Language Platform](https://github.com/WhatsApp/erlang-language-platform) installation.
+
+Configure the ELP binary's location by setting `*lsp-elang-elp-server-path*`:
+
+
+```lisp
+(defvar lem-erlang-mode::*lsp-erlang-elp-server-path*
+  (uiop:native-namestring "/usr/local/bin/elp")
+   "Adapt to your system's ELP path.")
+```
+
+Currently, Erlang mode does not add any LSP features on its own. The integration is experimental with the purpose of figuring out how to use the existing Lem/LSP features and how to add Erlang specific features.