diff --git a/regexpu/README.md b/regexpu/README.md
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+++ b/regexpu/README.md
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+# [ES6 Unicode regular expression transpiler](https://mothereff.in/regexpu)
+
+This tool uses [_regexpu_](http://mths.be/regexpu) to transpile [ES6 Unicode regular expressions (with a `u` flag)](https://mathiasbynens.be/notes/es6-unicode-regex) to equivalent ES5.
+
+Made by [Mathias Bynens](https://mathiasbynens.be/).
diff --git a/regexpu/eff.css b/regexpu/eff.css
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+++ b/regexpu/eff.css
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+html, textarea {
+ font: .8em/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;
+}
+
+textarea {
+ font-family: Monaco, Consolas, monospace;
+}
+
+#footer {
+ margin-top: 2em;
+ text-align: center;
+}
+
+textarea {
+ border: 3px double green;
+ background: #90ee90;
+ 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: 14.5em;
+}
+
+code {
+ font-family: Monaco, Consolas, monospace;
+ font-size: .9em;
+ white-space: pre;
+ white-space: pre-wrap;
+ word-wrap: break-word;
+}
+
+.invalid, :invalid {
+ 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;
+ }
+
+}
diff --git a/regexpu/eff.js b/regexpu/eff.js
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+++ b/regexpu/eff.js
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+(function(window, document) {
+
+ var textareas = document.getElementsByTagName('textarea');
+ var es6 = textareas[0];
+ var es5 = textareas[1];
+ var regexpu = require('regexpu');
+ var run = document.getElementById('run');
+ var permalink = document.getElementById('permalink');
+ // https://mathiasbynens.be/notes/localstorage-pattern
+ var storage = (function() {
+ var uid = new Date;
+ var storage;
+ var result;
+ try {
+ (storage = window.localStorage).setItem(uid, uid);
+ result = storage.getItem(uid) == uid;
+ storage.removeItem(uid);
+ return result && storage;
+ } catch (exception) {}
+ }());
+
+ function encode(string) {
+ // URL-encode some more characters to avoid issues when using permalink URLs in Markdown
+ return encodeURIComponent(string).replace(/['()_*]/g, function(character) {
+ return '%' + character.charCodeAt().toString(16);
+ });
+ }
+
+ function update() {
+ var value = es6.value;
+ var transpiled;
+ var isError = false;
+ try {
+ transpiled = regexpu.transpileCode(value);
+ } catch (exception) {
+ isError = true;
+ }
+ if (isError) {
+ es6.className = es5.className = 'invalid';
+ es5.value = '// Error during transpilation.';
+ } else {
+ es6.className = es5.className = '';
+ es5.value = transpiled;
+ }
+ permalink.hash = encode(value);
+ storage && (storage.regexpu = value);
+ };
+
+ run.onclick = function(event) {
+ event.preventDefault();
+ eval(es5.value);
+ };
+
+ es6.oninput = update;
+
+ if (storage) {
+ storage.regexpu && (es6.value = storage.regexpu);
+ update();
+ }
+
+ window.onhashchange = function() {
+ es6.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) {
+ var g = d.createElement('script');
+ var s = d.scripts[0];
+ g.src = '//www.google-analytics.com/ga.js';
+ s.parentNode.insertBefore(g, s);
+}(document));
diff --git a/regexpu/index.html b/regexpu/index.html
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+++ b/regexpu/index.html
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+
+
+
+regexpu demo
+
+
+
+ES6 Unicode regular expression transpiler
+
+ES6:
+
+
+
+About this tool
+This tool uses regexpu to transpile ES6 Unicode regular expressions (with a u flag) to equivalent ES5.
+
+
+