Ruby for NaCl. Please assign the appropriate reviewer.

tests/ruby/ruby.js

+/* Copyright 2009 The Native Client Authors.  All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can
+ * be found in the LICENSE file. */
+
+var client;
+var ruby;
+
+var PostInit = function() {
+  if (client == undefined) {
+    alert('Unable to load, try reloading page (or missing plugins?)');
+    return;
+  }
+  if (client.rubyEval === undefined) {
+   setTimeout(PostInit, 100);
+  } else {
+    document.getElementById("output").innerHTML = "Ruby is loaded<br>";
+  }
+}
+
+function escapeHTML(html) {
+ if (html === null || typeof(html) == "undefined") {
+   return "";
+  }
+  return html.replace(/&/g,'&amp;').replace(/>/g,'&gt;').
+      replace(/</g,'&lt;').replace(/"/g,'&quot;');
+}
+
+function start() {
+  client = document.getElementById('client');
+  PostInit();
+}
+
+function doExecute() {
+  var element = document.getElementById('rubyCode');
+  var code = element.value;
+  document.getElementById('output').innerHTML +=
+      ("&gt; " + code + "<br>").replace('\n', '<br>');
+  element.value = '';
+  try {
+    if (code.indexOf("puts ") != 0) {
+      code = "puts " + code;
+    }
+    var result = client.rubyEval(code);
+    document.getElementById('output').innerHTML +=
+        escapeHTML(result).replace('\n', '<br>');
+  } catch (e) {
+    alert('error while executing Ruby code "' + code + '" err:' + e);
+  }
+}