This is a minor mode for interacting with a Julia REPL running inside Emacs. The julia process is started in an ANSI terminal (term), which allows text formatting and colors, and interaction with the help system and the debugger.

It is recommended that you use this minor mode with julia-mode.

Please make sure you have at least Emacs 25. The term code changed a bit since Emacs 24, and the package does not support it. For example, Ubuntu users can get the latest Emacs snapshot here.

Place this in your Emacs initialization files (eg .emacs):

(add-to-list 'load-path path-to-julia-repl)
(require 'julia-repl)
(add-hook 'julia-mode-hook 'julia-repl-mode) ;; always use minor mode

If you want to use a Julia executable other than julia in your path, set

(setq julia-repl-executable "/path/to/julia")

M-x julia-repl, or C-c C-z from a buffer in which the julia-repl minor mode is active starts a new inferior Julia process. The keys below can be used to interact with this process.

All actions that send something to the REPL terminate with a newline, triggering evaluation. If you want to avoid sending a newline (eg maybe because you want to edit an expression), use prefix arguments (C-- or C-u, currently both have the same effect).

Also, note some keybindings for term:

1. C-x C-j switches to line mode, where you can kill/yank, move around the buffer, use standard Emacs keybindings,
2. C-c C-k switches back to char mode,
3. for scrolling, use S-<prior> and S-<next>.

See the help of term for more.

• There should be a way to send function definitions without selecting them (ie select around point).

A well-known alternative is ESS, which also supports Julia. julia-repl was written because I could not use Gallium from ESS, which is based on comint, and thus does not allow a fully functioning terminal. Also, relying on the interactive features of the Julia REPL implies that I would not need to change this library to incorporate extensions and changes.