Erlang + Emacs = Fun
As part of learning Erlang I needed a decent editor. I tried using vi but it just didn’t have the right level of integration. So I’m now using Emacs and it seems to be a pretty good fit. I’m by no means an advanced Emacs user and I’m sure there are plenty of cool things you can do with Erlang but I you need to start somewhere.
So here is the configuration for getting an Erlang emacs mode, drop it into your .emacs file.
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I’m using the Erlang installed by MacPorts, which installs into /opt/local, adjust the path for local conditions.
A few useful commands to get you started:
C-c C-z (erlang-shell-display) - Start, or switch to, an inferior Erlang shell. C-c C-k (erlang-compile) - Compiles the Erlang module in the current buffer. C-x ` (erlang-next-error) - Move the point on to the next error. C-c C-c (comment-region) - Comment or uncomment each line in the selected region.
where C is Control and the second element is a letter pressed at the same time.
All the features of the Erlang mode are described by switching to Erlang mode (M – erlang-mode) and describe the mode (M – describe-mode), where M is the Meta key. Usually the Alt or Option key on a Mac.