在Clojure中读取未缓冲的键盘输入 [英] Reading unbuffered keyboard input in Clojure

问题描述

如何在Clojure中从终端（不是Swing）中读取单个键击？

How does one read a single keystroke from the terminal (not Swing) in Clojure?

我已经尝试了一些操作，包括各种各样的 版本的JLine库，但没有得到它的工作（见

I have tried a few things including various versions of the JLine library, but have not gotten it working (see example below).

我会高兴地接受一个工作，只有Unix（Mac，Linux，...）的例子。理想情况下，我想知道如何关闭stdin和stdout的缓冲。

I will happily accept a working, Unix-only (Mac, Linux, ...) example. Ideally I'd like to know how to switch buffering off for both stdin and stdout.

这里有一些关闭：

;; project.clj dependencies:
;; [[org.clojure/clojure "1.4.0"]
;;  [jline/jline "2.8"]])

(ns slosh.core
  (:import [jline.console ConsoleReader])
  (:gen-class))    

(defn -main []
  (println "start")
  (let [cr (ConsoleReader.)]
    (.readCharacter cr)
    (println "done")))

这将打印start，但不会响应任何输入， C。

This prints "start" but does not respond to any input except control-C.

推荐答案

我不知道你是如何运行这个，但如果你使用运行，你会遇到问题。尝试使用 lein trampoline run 。

I'm not sure how you are running this, but if you are using lein run, you will run into problems. Try using lein trampoline run.

我会链接单个字符控制台输入在java / clojure ，但我似乎没有足够的互联网点来做。

I would link Single character console input in java/clojure but I don't seem to have enough Internet Points to do that.

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