2015-05-04 07:53:29 +00:00
|
|
|
<!doctype html>
|
|
|
|
|
|
|
|
|
|
<title>CodeMirror: Clojure mode</title>
|
|
|
|
|
<meta charset="utf-8"/>
|
|
|
|
|
<link rel=stylesheet href="../../doc/docs.css">
|
|
|
|
|
|
|
|
|
|
<link rel="stylesheet" href="../../lib/codemirror.css">
|
|
|
|
|
<script src="../../lib/codemirror.js"></script>
|
|
|
|
|
<script src="clojure.js"></script>
|
|
|
|
|
<style>.CodeMirror {background: #f8f8f8;}</style>
|
|
|
|
|
<div id=nav>
|
|
|
|
|
<a href="http://codemirror.net"><h1>CodeMirror</h1><img id=logo src="../../doc/logo.png"></a>
|
|
|
|
|
|
|
|
|
|
<ul>
|
|
|
|
|
<li><a href="../../index.html">Home</a>
|
|
|
|
|
<li><a href="../../doc/manual.html">Manual</a>
|
|
|
|
|
<li><a href="https://github.com/codemirror/codemirror">Code</a>
|
|
|
|
|
</ul>
|
|
|
|
|
<ul>
|
|
|
|
|
<li><a href="../index.html">Language modes</a>
|
|
|
|
|
<li><a class=active href="#">Clojure</a>
|
|
|
|
|
</ul>
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
<article>
|
|
|
|
|
<h2>Clojure mode</h2>
|
|
|
|
|
<form><textarea id="code" name="code">
|
|
|
|
|
; Conway's Game of Life, based on the work of:
|
|
|
|
|
;; Laurent Petit https://gist.github.com/1200343
|
|
|
|
|
;; Christophe Grand http://clj-me.cgrand.net/2011/08/19/conways-game-of-life
|
|
|
|
|
|
|
|
|
|
(ns ^{:doc "Conway's Game of Life."}
|
|
|
|
|
game-of-life)
|
|
|
|
|
|
|
|
|
|
;; Core game of life's algorithm functions
|
|
|
|
|
|
|
|
|
|
(defn neighbours
|
|
|
|
|
"Given a cell's coordinates, returns the coordinates of its neighbours."
|
|
|
|
|
[[x y]]
|
|
|
|
|
(for [dx [-1 0 1] dy (if (zero? dx) [-1 1] [-1 0 1])]
|
|
|
|
|
[(+ dx x) (+ dy y)]))
|
|
|
|
|
|
|
|
|
|
(defn step
|
|
|
|
|
"Given a set of living cells, computes the new set of living cells."
|
|
|
|
|
[cells]
|
|
|
|
|
(set (for [[cell n] (frequencies (mapcat neighbours cells))
|
|
|
|
|
:when (or (= n 3) (and (= n 2) (cells cell)))]
|
|
|
|
|
cell)))
|
|
|
|
|
|
|
|
|
|
;; Utility methods for displaying game on a text terminal
|
|
|
|
|
|
|
|
|
|
(defn print-board
|
|
|
|
|
"Prints a board on *out*, representing a step in the game."
|
|
|
|
|
[board w h]
|
|
|
|
|
(doseq [x (range (inc w)) y (range (inc h))]
|
|
|
|
|
(if (= y 0) (print "\n"))
|
|
|
|
|
(print (if (board [x y]) "[X]" " . "))))
|
|
|
|
|
|
|
|
|
|
(defn display-grids
|
|
|
|
|
"Prints a squence of boards on *out*, representing several steps."
|
|
|
|
|
[grids w h]
|
|
|
|
|
(doseq [board grids]
|
|
|
|
|
(print-board board w h)
|
|
|
|
|
(print "\n")))
|
|
|
|
|
|
|
|
|
|
;; Launches an example board
|
|
|
|
|
|
|
|
|
|
(def
|
|
|
|
|
^{:doc "board represents the initial set of living cells"}
|
|
|
|
|
board #{[2 1] [2 2] [2 3]})
|
|
|
|
|
|
|
|
|
|
(display-grids (take 3 (iterate step board)) 5 5)
|
|
|
|
|
|
|
|
|
|
;; Let's play with characters
|
|
|
|
|
(println \1 \a \# \\
|
|
|
|
|
\" \( \newline
|
|
|
|
|
\} \" \space
|
|
|
|
|
\tab \return \backspace
|
|
|
|
|
\u1000 \uAaAa \u9F9F)
|
|
|
|
|
|
2016-01-17 20:28:04 +00:00
|
|
|
;; Let's play with numbers
|
|
|
|
|
(+ 1 -1 1/2 -1/2 -0.5 0.5)
|
|
|
|
|
|
2015-05-04 07:53:29 +00:00
|
|
|
</textarea></form>
|
|
|
|
|
<script>
|
|
|
|
|
var editor = CodeMirror.fromTextArea(document.getElementById("code"), {});
|
|
|
|
|
</script>
|
|
|
|
|
|
|
|
|
|
<p><strong>MIME types defined:</strong> <code>text/x-clojure</code>.</p>
|
|
|
|
|
|
|
|
|
|
</article>
|
