add html mode with mixed XML and JS highlighting

test/mode/HtmlTokenizerTest.js

@@ -0,0 +1,25 @@
+var HtmlTest = new TestCase("mode.HtmlTest", {
+
+    setUp : function() {
+        this.tokenizer = new ace.mode.Html().getTokenizer();
+    },
+
+    "test: tokenize embedded script" : function() {
+
+        var line = "<script a='a'>var</script>'123'";
+        var tokens = this.tokenizer.getLineTokens(line, "start").tokens;
+
+        //assertEquals(10, tokens.length);
+        assertEquals("text", tokens[0].type);
+        assertEquals("keyword", tokens[1].type);
+        assertEquals("text", tokens[2].type);
+        assertEquals("keyword", tokens[3].type);
+        assertEquals("text", tokens[4].type);
+        assertEquals("string", tokens[5].type);
+        assertEquals("text", tokens[6].type);
+        assertEquals("keyword", tokens[7].type);
+        assertEquals("text", tokens[8].type);
+        assertEquals("keyword", tokens[9].type);
+        assertEquals("text", tokens[10].type);
+    }
+});