Add brainfuck minifier

brainfuck-minifier/README.md

@@ -0,0 +1,7 @@
+# [Mothereffing brainfuck minifier](http://mothereff.in/brainfuck-minifier)
+
+[Brainfuck](http://esolangs.org/wiki/Brainfuck) _(not capitalized except at the start of a sentence)_ is an esoteric programming language. It has eight commands — `+-<>[],.` — and ignores all other characters. As a result, no special syntax for comments is needed, as long as the comments don’t contain the command characters.
+
+This tool will automatically remove comments from any brainfuck snippet you enter.
+
+Made by [Mathias Bynens](http://mathiasbynens.be/).

brainfuck-minifier/eff.css

@@ -0,0 +1,108 @@
+html, textarea {
+	font: 1em/1.6 sans-serif;
+}
+
+body {
+	max-width: 40em;
+	padding: 0 1em;
+}
+
+h1 {
+	text-align: center;
+	font-size: 1.3em;
+	margin: 0 0 .5em;
+	padding-top: 1em;
+}
+
+h2 {
+	font-size: 1em;
+}
+
+a {
+	color: #333;
+	text-decoration: none;
+	border-bottom: 1px solid #aaa;
+	padding: .1em .2em;
+}
+
+a:hover, a:focus {
+	color: #fff;
+	border-color: #036;
+	background: #36c;
+}
+
+dt {
+	font-weight: bold;
+	font-style: italic;
+}
+
+#output a, textarea, code {
+	font-family: Monaco, Consolas, monospace;
+}
+
+code {
+	font-size: .9em;
+	white-space: pre;
+	white-space: pre-wrap;
+	word-wrap: break-word;
+}
+
+ul {
+	margin-bottom: 0;
+}
+
+
+blockquote {
+	margin: 0 0 1em;
+	border-left: .5em solid #e3e3e3;
+	padding-left: 10px;
+}
+
+#footer {
+	margin-top: 2em;
+	text-align: center;
+}
+
+textarea {
+	background: #eee;
+	border: 3px double grey;
+	width: 100%;
+	-moz-box-sizing: border-box;
+	-webkit-box-sizing: border-box;
+	box-sizing: border-box;
+	display: block;
+	margin: 1em 0 .5em;
+	padding: .7em;
+	resize: vertical;
+	min-height: 9.5em;
+}
+
+pre {
+	padding: .5em;
+	border: 3px double green;
+	background: #90ee90;
+}
+
+.fail {
+	border-color: red;
+	background: #ffb6c1;
+}
+
+@media (min-width: 42em) {
+
+	html {
+		font-size: 1.2em;
+		background: #c4c4c4;
+		height: 100%;
+	}
+
+	body {
+		margin: 0 auto;
+		padding: 0 2em;
+		min-height: 100%;
+		background: #fff;
+		border: solid #aaa;
+		border-width: 0 1px;
+	}
+
+}

brainfuck-minifier/eff.js

@@ -0,0 +1,111 @@
+(function(window, document) {
+
+	var textarea = document.getElementsByTagName('textarea')[0],
+	    characters = document.getElementById('characters'),
+	    pre = document.getElementsByTagName('pre')[0],
+	    output = document.getElementById('output'),
+	    permalink = document.getElementById('permalink'),
+	    dds = document.getElementsByTagName('dd'),
+	    before = dds[0],
+	    after = dds[1],
+	    ratio = dds[2],
+	    regexNotBrainfuck = /[^\+\-<>\[\],\.]/g,
+	    regexNumberGroup = /(?=(?:\d{3})+$)(?!\b)/g,
+	    // http://mathiasbynens.be/notes/localstorage-pattern
+	    storage = (function() {
+	    	try {
+	    		var storage = window.localStorage,
+	    		    uid = new Date;
+	    		storage.setItem(uid, uid);
+	    		return storage.getItem(uid) == uid && storage;
+	    	} catch(e) {}
+	    }()),
+	    characterReferences;
+
+	function text(el, str) {
+		if (str == null) {
+			return el.innerText || el.textContent;
+		}
+		el.innerText != null && (el.innerText = str);
+		el.textContent != null && (el.textContent = str);
+	}
+
+	// Taken from http://mths.be/punycode
+	function ucs2decode(string) {
+		var output = [],
+		    counter = 0,
+		    length = string.length,
+		    value,
+		    extra;
+		while (counter < length) {
+			value = string.charCodeAt(counter++);
+			if ((value & 0xF800) == 0xD800) {
+				extra = string.charCodeAt(counter++);
+				if ((value & 0xFC00) != 0xD800 || (extra & 0xFC00) != 0xDC00) {
+					throw Error('Illegal UCS-2 sequence');
+				}
+				value = ((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000;
+			}
+			output.push(value);
+		}
+		return output;
+	}
+
+	function formatNumber(number, unit) {
+		return (number == 0 ? '0' : String(number).replace(regexNumberGroup, ',')) + ' ' + unit + (number == 1 ? '' : 's');
+	}
+
+	function charCount(string) {
+		return ucs2decode(string).length;
+	}
+
+	function byteCount(string) {
+		return ~-encodeURI(string).split(/%..|./).length; // https://gist.github.com/1010324
+	}
+
+	function update() {
+		var value = textarea.value,
+		    result = value.replace(regexNotBrainfuck, ''),
+		    originalCharacterCount = charCount(value),
+		    originalByteCount = byteCount(value),
+		    resultingByteCount = byteCount(result); // byte and character counts are the same at this point
+		text(output, result || '[no output]');
+		pre.className = resultingByteCount ? '' : 'fail';
+		text(before, formatNumber(originalByteCount, 'byte') + (originalCharacterCount == originalByteCount ? '' : ' (assuming UTF-8); ' + formatNumber(originalCharacterCount, 'character')));
+		text(after, formatNumber(resultingByteCount, 'byte'));
+		text(ratio, (originalByteCount ? ((originalByteCount - resultingByteCount) / originalByteCount * 100) : 0).toFixed(2) + '%');
+
+		permalink.hash = encodeURIComponent(value);
+		storage && (storage.brainfuck = value);
+	};
+
+	textarea.onkeyup = update;
+	textarea.oninput = function() {
+		textarea.onkeyup = null;
+		update();
+	};
+
+	if (storage) {
+		storage.brainfuck && (textarea.value = storage.brainfuck);
+		update();
+	}
+
+	window.onhashchange = function() {
+		textarea.value = decodeURIComponent(location.hash.slice(1));
+		update();
+	};
+
+	if (location.hash) {
+		window.onhashchange();
+	}
+
+}(this, document));
+
+// Google Analytics
+window._gaq = [['_setAccount', 'UA-6065217-60'], ['_trackPageview']];
+(function(d, t) {
+	var g = d.createElement(t),
+	    s = d.getElementsByTagName(t)[0];
+	g.src = '//www.google-analytics.com/ga.js';
+	s.parentNode.insertBefore(g, s);
+}(document, 'script'));

brainfuck-minifier/index.html

@@ -0,0 +1,45 @@
+<!DOCTYPE html>
+<html lang=en>
+<meta charset=utf-8>
+<title>Brainfuck minifier</title>
+<meta name=viewport content="width=device-width">
+<link rel=stylesheet href=eff.css>
+<meta name=description content="An on-the-fly brainfuck minifier.">
+<h1>Brainfuck minifier</h1>
+<noscript><strong>To use this tool, please <a href=http://enable-javascript.com/>enable JavaScript</a> and reload the page.</strong></noscript>
+<h2>Input</h2>
+<textarea autofocus>+++++ +++++        initialize counter (cell #0) to 10
+[ use loop to set the next four cells to 70/100/30/10
+    > +++++ ++                      add  7 to cell #1
+    > +++++ +++++                   add 10 to cell #2
+    > +++                           add  3 to cell #3
+    > +                             add  1 to cell #4
+    &lt;&lt;&lt;&lt; -                decrement counter (cell #0)
+]
+> ++ .                                      print 'H'
+> + .                                       print 'e'
++++++ ++ .                                  print 'l'
+.                                           print 'l'
++++ .                                       print 'o'
+> ++ .                                      print ' '
+&lt;&lt; +++++ +++++ +++++ .                      print 'W'
+> .                                         print 'o'
++++ .                                       print 'r'
+----- - .                                   print 'l'
+----- --- .                                 print 'd'
+> + .                                       print '!'
+> .                                         print '\n'</textarea>
+<h2>Minified result (<a href=#%E2%82%AC id=permalink>permalink</a>)</h2>
+<pre><code id=output>++++++++++[>+++++++>++++++++++>+++>+&lt;&lt;&lt;&lt;-]>++.>+.+++++++..+++.>++.&lt;&lt;+++++++++++++++.>.+++.------.--------.>+.>.</code></pre>
+<dl>
+	<dt>Before
+		<dd>1,082 bytes
+	<dt>After
+		<dd>111 bytes
+	<dt>Compression ratio
+		<dd>89.74%
+</dl>
+<h2>About brainfuck</h2>
+<p><a href=http://esolangs.org/wiki/Brainfuck>Brainfuck</a> <i>(not capitalized except at the start of a sentence)</i> is an esoteric programming language. It has eight commands — <code>+-&lt;>[],.</code> — and ignores all other characters. As a result, no special syntax for comments is needed, as long as the comments don’t contain the command characters.
+<p id=footer>Made by <a href=http://mathiasbynens.be/>@mathias</a> — <a href=https://github.com/mathiasbynens/mothereff.in/tree/master/brainfuck-minifier>fork this on GitHub!</a></p>
+<script src=eff.js></script>