Erlang Central

Lisp Flavoured Erlang

Revision as of 18:59, 10 January 2009 by Giara (Talk | contribs)


Lisp Flavoured Erlang is a tool which allows you to use a Lispy syntax instead of the classic Erlang one. There are various reasons one might find this compelling; LFE has Lispy/Schemey macros; the syntax is more consistent (e.g. no issues with ; vs. , vs. .).

Note that while LFE currently can do a lot, it doesn't quite support all the things available to you in the classic Erlang syntax.


The Erlang shell will look for bytecode (.beam) files in certain places, so you want the LFE install to be found that way. You can put all of the LFE bytecode under <path-to-installed-erl>/lib/. For example, I extracted LFE so that I I end up with .../erl5.6.5/lib/lfe/{doc,ebin,examples,src,test,etc.}. Or you can edit the environment variable ERL_LIBS to include the path to the LFE installation. TODO: somebody who uses ERL_LIBS, please put in a precise example here.


The LFE installation comes with some examples. TODO: build up a set of examples here which help show a clear mapping from classic Erlang syntax to LFE syntax.