diff --git a/runtime/syntax/testdir/dumps/html_00.dump b/runtime/syntax/testdir/dumps/html_00.dump
new file mode 100644
index 0000000..d1b2b91
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/html_00.dump
@@ -0,0 +1,20 @@
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diff --git a/runtime/syntax/testdir/dumps/html_01.dump b/runtime/syntax/testdir/dumps/html_01.dump
new file mode 100644
index 0000000..c855f7b
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/html_01.dump
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diff --git a/runtime/syntax/testdir/dumps/html_02.dump b/runtime/syntax/testdir/dumps/html_02.dump
new file mode 100644
index 0000000..9499f2e
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/html_02.dump
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diff --git a/runtime/syntax/testdir/dumps/html_03.dump b/runtime/syntax/testdir/dumps/html_03.dump
new file mode 100644
index 0000000..088da73
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/html_03.dump
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diff --git a/runtime/syntax/testdir/dumps/html_04.dump b/runtime/syntax/testdir/dumps/html_04.dump
new file mode 100644
index 0000000..ef3acf7
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/html_04.dump
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diff --git a/runtime/syntax/testdir/dumps/html_05.dump b/runtime/syntax/testdir/dumps/html_05.dump
new file mode 100644
index 0000000..411a4f5
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/html_05.dump
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diff --git a/runtime/syntax/testdir/dumps/html_06.dump b/runtime/syntax/testdir/dumps/html_06.dump
new file mode 100644
index 0000000..7482dce
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/html_06.dump
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+|<+0#00e0e07&|x+0#af5f00255&|m|p|>+0#00e0e07&| +0#0000000&@69
+@75
+|<+0#0000e05&|!|-@1| |D|e|p|r|e|c|a|t|e|d| |E|l|e|m|e|n|t|s| |-@1|>| +0#0000000&@46
+@57|1|0|9|,|1| @8|8|1|%| 
diff --git a/runtime/syntax/testdir/dumps/html_07.dump b/runtime/syntax/testdir/dumps/html_07.dump
new file mode 100644
index 0000000..9c5deaa
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/html_07.dump
@@ -0,0 +1,20 @@
+|<+0#0000e05#ffffff0|!|-@1| |D|e|p|r|e|c|a|t|e|d| |E|l|e|m|e|n|t|s| |-@1|>| +0#0000000&@46
+|<+0#00e0e07&|a+0#af5f00255&|c|r|o|n|y|m|>+0#00e0e07&| +0#0000000&@65
+|<+0#00e0e07&|b+0#af5f00255&|i|g|>+0#00e0e07&| +0#0000000&@69
+|<+0#00e0e07&|c+0#af5f00255&|e|n|t|e|r|>+0#00e0e07&| +0#0000000&@66
+|<+0#00e0e07&|d+0#af5f00255&|i|r|>+0#00e0e07&| +0#0000000&@69
+><+0#00e0e07&|f+0#af5f00255&|o|n|t|>+0#00e0e07&| +0#0000000&@68
+|<+0#00e0e07&|f+0#af5f00255&|r|a|m|e|>+0#00e0e07&| +0#0000000&@67
+|<+0#00e0e07&|f+0#af5f00255&|r|a|m|e|s|e|t|>+0#00e0e07&| +0#0000000&@64
+|<+0#00e0e07&|m+0#af5f00255&|a|r|q|u|e@1|>+0#00e0e07&| +0#0000000&@65
+|<+0#00e0e07&|m+0#af5f00255&|e|n|u|i|t|e|m|>+0#00e0e07&| +0#0000000&@64
+|<+0#00e0e07&|n+0#af5f00255&|o|b|r|>+0#00e0e07&| +0#0000000&@68
+|<+0#00e0e07&|n+0#af5f00255&|o|f|r|a|m|e|s|>+0#00e0e07&| +0#0000000&@64
+|<+0#00e0e07&|p+0#af5f00255&|a|r|a|m|>+0#00e0e07&| +0#0000000&@67
+|<+0#00e0e07&|r+0#af5f00255&|b|>+0#00e0e07&| +0#0000000&@70
+|<+0#00e0e07&|r+0#af5f00255&|t|c|>+0#00e0e07&| +0#0000000&@69
+|<+0#00e0e07&|s+0#af5f00255&|t|r|i|k|e|>+0#00e0e07&|.+1024#0000000&@2|<+0#00e0e07&|/|s+0#af5f00255&|t|r|i|k|e|>+0#00e0e07&| +0#0000000&@54
+|<+0#00e0e07&|t+0#af5f00255&@1|>+0#00e0e07&| +0#0000000&@70
+@75
+|<+0#0000e05&|!|-@1| |N|o|t|e|:| |t|h|e|s|e| |d|e|p|r|e|c|a|t|e|d| |e|l|e|m|e|n|t|s| |h|a|v|e| |n|e|v|e|r| |b|e@1|n| |m|a|t|c|h|e|d| |-@1|>| +0#0000000&@10
+@57|1|2|7|,|1| @8|9|5|%| 
diff --git a/runtime/syntax/testdir/dumps/html_99.dump b/runtime/syntax/testdir/dumps/html_99.dump
new file mode 100644
index 0000000..080a0c6
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/html_99.dump
@@ -0,0 +1,20 @@
+|<+0#00e0e07#ffffff0|f+0#af5f00255&|r|a|m|e|>+0#00e0e07&| +0#0000000&@67
+|<+0#00e0e07&|f+0#af5f00255&|r|a|m|e|s|e|t|>+0#00e0e07&| +0#0000000&@64
+|<+0#00e0e07&|m+0#af5f00255&|a|r|q|u|e@1|>+0#00e0e07&| +0#0000000&@65
+|<+0#00e0e07&|m+0#af5f00255&|e|n|u|i|t|e|m|>+0#00e0e07&| +0#0000000&@64
+|<+0#00e0e07&|n+0#af5f00255&|o|b|r|>+0#00e0e07&| +0#0000000&@68
+|<+0#00e0e07&|n+0#af5f00255&|o|f|r|a|m|e|s|>+0#00e0e07&| +0#0000000&@64
+|<+0#00e0e07&|p+0#af5f00255&|a|r|a|m|>+0#00e0e07&| +0#0000000&@67
+|<+0#00e0e07&|r+0#af5f00255&|b|>+0#00e0e07&| +0#0000000&@70
+|<+0#00e0e07&|r+0#af5f00255&|t|c|>+0#00e0e07&| +0#0000000&@69
+|<+0#00e0e07&|s+0#af5f00255&|t|r|i|k|e|>+0#00e0e07&|.+1024#0000000&@2|<+0#00e0e07&|/|s+0#af5f00255&|t|r|i|k|e|>+0#00e0e07&| +0#0000000&@54
+|<+0#00e0e07&|t+0#af5f00255&@1|>+0#00e0e07&| +0#0000000&@70
+@75
+|<+0#0000e05&|!|-@1| |N|o|t|e|:| |t|h|e|s|e| |d|e|p|r|e|c|a|t|e|d| |e|l|e|m|e|n|t|s| |h|a|v|e| |n|e|v|e|r| |b|e@1|n| |m|a|t|c|h|e|d| |-@1|>| +0#0000000&@10
+|<+0#00e0e07&|i+0#0000000&|m|a|g|e|>+0#00e0e07&| +0#0000000&@67
+|<+0#00e0e07&|n+0#0000000&|o|e|m|b|e|d|>+0#00e0e07&| +0#0000000&@65
+|<+0#00e0e07&|p+0#0000000&|l|a|i|n|t|e|x|t|>+0#00e0e07&| +0#0000000&@63
+@75
+|<+0#0000e05&|!|-@1| |E|x|p|e|r|i|m|e|n|t|a|l| |-@1|>| +0#0000000&@53
+><+0#00e0e07&|p+0#0000000&|o|r|t|a|l|>+0#00e0e07&| +0#0000000&@66
+@57|1|4|6|,|1| @8|B|o|t| 
diff --git a/runtime/syntax/testdir/input/html.html b/runtime/syntax/testdir/input/html.html
new file mode 100644
index 0000000..bfeca26
--- /dev/null
+++ b/runtime/syntax/testdir/input/html.html
@@ -0,0 +1,146 @@
+<!--
+  HTML Syntax Test File
+  Maintainer: Doug Kearns <dougkearns@gmail.com>
+  Last Change: 2023 Nov 28
+-->
+
+<!-- HTML Elements -->
+<a>
+<abbr>
+<address>
+<area>
+<article>
+<aside>
+<audio>
+<b>...</b>
+<base>
+<bdi>
+<bdo>
+<blockquote>
+<body>
+<br>
+<button>
+<canvas>
+<caption>
+<cite>
+<code>
+<col>
+<colgroup>
+<data>
+<datalist>
+<dd>
+<del>...</del>
+<details>
+<dfn>
+<dialog>
+<div>
+<dl>
+<dt>
+<em>...</em>
+<embed>
+<fieldset>
+<figcaption>
+<figure>
+<footer>
+<form>
+<h1>...</h1>
+<h2>...</h2>
+<h3>...</h3>
+<h4>...</h4>
+<h5>...</h5>
+<h6>...</h6>
+<head>...</head>
+<header>
+<hgroup>
+<hr>
+<html>
+<i>...</i>
+<iframe>
+<img>
+<input>
+<ins>
+<kbd>
+<label>
+<legend>
+<li>
+<link>
+<main>
+<map>
+<mark>
+<menu>
+<meta>
+<meter>
+<nav>
+<noscript>
+<object>
+<ol>
+<optgroup>
+<option>
+<output>
+<p>
+<picture>
+<pre>...</pre>
+<progress>
+<q>
+<rp>
+<rt>
+<ruby>
+<s>...</s>
+<samp>
+<script>...</script>
+<search>
+<section>
+<select>
+<slot>
+<small>
+<source>
+<span>
+<strong>...</strong>
+<style>...</style>
+<sub>
+<summary>
+<sup>
+<table>
+<tbody>
+<td>
+<template>
+<textarea>
+<tfoot>
+<th>
+<thead>
+<time>
+<title>...</title>
+<tr>
+<track>
+<u>...</u>
+<ul>
+<var>
+<video>
+<wbr>
+<xmp>
+
+<!-- Deprecated Elements -->
+<acronym>
+<big>
+<center>
+<dir>
+<font>
+<frame>
+<frameset>
+<marquee>
+<menuitem>
+<nobr>
+<noframes>
+<param>
+<rb>
+<rtc>
+<strike>...</strike>
+<tt>
+
+<!-- Note: these deprecated elements have never been matched -->
+<image>
+<noembed>
+<plaintext>
+
+<!-- Experimental -->
+<portal>