Emacs Builds racket development environment

Emacs Builds racket development environment

Emacs under the development of racket environment, the author used the following two modes: Geiser and Racket-mode. Relatively speaking, the latter way to appear simple, this article mainly introduces the latter way of setting up the environment (note: The author is a Mac system, other systems similar):

Download and install Racket

The first thing you have to do is download racket's compilation and runtime environment for http://download.racket-lang.org/. The author is a Mac system, download good. dmg files directly after installation is good, very convenient.

Execution path

After installation, make sure that the racket executable file is in your $path (window is called environment variable), under Terminal, run the following command, if the following results indicate that the installation racket successful.

 ~  --versionto Racket v6.2.

The racket executable file in Mac is under this path:

/Applications/Racket\ v6.2/bin

For convenience, I made a soft link to my own/usr/local/bin under the

ln -s /Applications/Racket\ v6.2/bin/racket /usr/local/bin/racketln -s /Applications/Racket\ v6.2/bin/raco /usr/local/bin/raco

Emacs Installation Racket-mode

To install through MELPA, first set up the installation source:

(require ‘package)(add-to-list ‘package-archives             ‘("melpa" . "http://melpa.org/packages/")             t)(package-initialize)

Then install it with the following Emacs command

M-x package-install<ret> racket-mode

Emacs Configuration

(require ‘racket-mode)(setq racket-racket-program "racket")(setq racket-raco-program "raco")(add-hook ‘racket-mode-hook          (lambda ()            (define-key racket-mode-map (kbd "C-x C-j") ‘racket-run)))

Note: The last line is the binding execution accelerator.

Perform

Here is a simple racket program, save it as a Hello.rkt file

#! /usr/bin/env racket#lang racket(define (extract str)  47"the cat out of the bag")

Execute this procedure, using the M-x racket-run command
Such as:

Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.

Emacs Builds racket development environment