Clojure REPL readline like support

Question

Hi

Several repl (like ruby irb) had some very useful features like use the arrows keys to "rewind" and "forward" the commands, but when i try to do the same with clojure, it only print garbage (I suspect it print the code of the key). How i could activate this feature in clojure?

Answer 1

You need to use JLine or rlwrap. Refer to http://en.wikibooks.org/wiki/Clojure_Programming/Getting_Started#Enhancing_the_Environment for assistance

Answer 2

Download jline from here and copy the jar to the directory from where the clojure.jar is loaded. The clj script should find and enable it.

On the other hand if you use leiningen to organize your projects, which I heartily recommned, then you do not have to do anything other than run lein repl and the REPL starts with the expected history behavior and all dependencies of your project on the classpath.

Answer 3

This depends on how you start your REPL. For example liebke's cljr has a nice REPL with readline support:

http://github.com/liebke/cljr